Tailift TPR1230 Скачать руководство пользователя страница 12

Страница: 12 / 99

2-1

CHAPTER 2

General Specifications

2.1

The anticipated machine life.

The calculation of the anticipated machine life:

8 hours x 6 days x 50 weeks x 10 years = 24000 hours.

The above calculation is based on a sound maintenance and normal condition, excluding

wearing parts.

2.2 Machine dimensions.

The following are the machines’ dimensions and its diagrams.

Models A

B C

TPR-1230 1710mm 715mm 2780mm

TPR-1230H 1710mm  715mm  2780mm
TPR-1600H 2450mm  1020mm  3170mm
TPR-2000H 2908mm  1102mm  3470mm

Содержание TPR1230

Страница 1: ...D E C 0 0 5 0 4 TAILIFT LTD 2006 RADIAL DRILLS TPR1230 TPR1230H TPR1600H TPR2000H Operation Manual...

Страница 2: ...cifications 2 3 2 4 1 TPR 1230H Specification 2 3 2 4 2 TPR 1230 Specification 2 4 2 4 3 TPR 1600H Specification 2 5 2 4 4 TPR 2000H Specification 2 6 2 5 Standard and Option Accessories 2 7 2 6 Opera...

Страница 3: ...Installation of the clamp work piece 5 9 5 3 1 General 5 9 5 3 2 Introduction of the vise and the clamping of the work piece 5 9 5 3 3 Universal clamp and the clamping of the work piece 5 10 5 4 Insta...

Страница 4: ...4 1 For TPR 1230 TPR 1230H 6 4 6 4 2 For TPR 1600H TPR 2000H 6 5 6 5 Adjustment for the backlash between the gearbox and the arm rail 6 6 6 6 Adjustment of the hydraulic pressure 6 6 6 7 Adjustment of...

Страница 5: ...ectrical main parts list For TPR 1230H CE Standard 9 5 9 6 Electrical main parts list For TPR 1230 CE Standard 9 7 9 7 Electrical main parts list For TPR 1600H CE Standard 9 9 9 8 Electrical main part...

Страница 6: ...know the location of the emergent stop 9 Please put on leather gloves or similar protective equipments when moving installing or clearing the machine 1 3 Precautions for operation 1 Please don t remov...

Страница 7: ...ower on is needed in it 3 Please power off after work 4 Adding or replacing hydraulic oil or lubricant Please use Tailift recommended oil type or its equivalent For details please refer to the chapter...

Страница 8: ...USTRIAL CO LTD TAILIFT CO LTD MODEL NO MFG DATE NET WEIGHT SERIAL NO POWER SUPPLY kva 1 269 NO 269 SEC 1 SHEIN LIN RD YUAN LIN TSUN TA YA HSIANG TAICHUNG HSIEN TAIWAN TEL 886 4 25666100 FAX 886 4 2567...

Страница 9: ...e front view b The rear view TAI PIN INDUSTRIAL CO LTD TAILIFT CO LTD MODEL NO MFG DATE NET WEIGHT SERIAL NO POWER SUPPLY kva 1 269 NO 269 SEC 1 SHEIN LIN RD YUAN LIN TSUN TA YA HSIANG TAICHUNG HSIEN...

Страница 10: ...1 5 C Oil filler position and Oil Drain outlet position z Arm elevating motor For TPR 1230 TPR 1230H z Arm elevating motor For TPR 1600H TPR 2000H...

Страница 11: ...1 6 z Gearbox For TPR 1230 TPR 1230H For TPR 1600H TPR 2000H z Hydraulic oil pump...

Страница 12: ...eks x 10 years 24000 hours The above calculation is based on a sound maintenance and normal condition excluding wearing parts 2 2 Machine dimensions The following are the machines dimensions and its d...

Страница 13: ...e its description and locations 1 Base The main aim of the base is to support the whole weight of the machine In addition the cutting fluid is contained here and the Box Table is installed on 2 Gear b...

Страница 14: ...mm 520mm 415mm The dimensions of the Base L W H 1710mm 715mm 180mm Taper hole Spindle MT 4 Stroke of the Spindle 250mm R P M of Spindle R P M step 44 1500 12 steps Feed of Spindle REV step 0 05 0 09 0...

Страница 15: ...5mm The dimensions of the Base L W H 1710mm 715mm 180mm Taper hole Spindle MT 4 Stroke of the Spindle 250mm R P M of Spindle R P M step 44 1500 12 steps Feed of Spindle REV step 0 05 0 09 0 15 3 speed...

Страница 16: ...400mm The dimensions of the Base L W H 2450mm 1020mm 200mm Taper hole Spindle MT 5 Stroke of the Spindle 370mm R P M of Spindle R P M step 35 1890 12 steps Feed of Spindle REV step 0 07 0 96 6 steps M...

Страница 17: ...500mm The dimensions of the Base L W H 2908mm 1102mm 250mm Taper hole Spindle MT 5 Stroke of the Spindle 370mm R P M of Spindle R P M step 35 1890 12 steps Feed of Spindle REV step 0 07 0 96 6 steps...

Страница 18: ...from the gearbox surface Height 1 6 meter from the ground 2 6 2 The noise level 1 Before being processed When the turning speed is 1500 rpm the noise level is 82 dB A When the turning speed is 88 rpm...

Страница 19: ...to the chapter 6 2 Adjusting level is needed before using this machine The level adjusting tolerance must be within 1 mm m TPR 1230H TPR 1230 floor diagrams Unit mm The above diagrams are for the bas...

Страница 20: ...3 2 TPR 2000H floor diagrams Unit mm The above diagrams are for the bases and ground bolts as well as its relative positions of TPR 2000H...

Страница 21: ...places where sun shines directly on it b Temperature normal range is between 5 and 40 c Humidity between 30 and 95 At the max temperature 40 The relative humidity should not be over 50 And at the rela...

Страница 22: ...the waveform distortion f Acceptable imbalance of the line voltage 5 or less g Power capacity table TPR 1230H TPR 1230 Main Motor 2 25Kw Elevating Motor 0 75Kw Hydraulic Motor 0 75Kw Coolant Pump Moto...

Страница 23: ...d Power Capacity 2 25kw 0 75kw 0 75kw 0 1kw 3 85kw 1 Maximum Total Initiate Power Capacity 6 3kw 2 1kw 2 1kw 0 28kw 10 78kw 2 Transformer Rated Output Power Capacity for Control Circuits Model Item 10...

Страница 24: ...kw 1 5kw 0 75kw 0 1kw 7 975kw 1 Maximum Total Initiate Power Capacity 15 75kw 4 2kw 2 1kw 0 28kw 22 33kw 2 Transformer Rated Output Power Capacity for Control Circuits Model Item 100VA Input AC400V 10...

Страница 25: ...kw 2 25kw 0 75kw 0 1kw 8 725kw 1 Maximum Total Initiate Power Capacity 15 75kw 6 3kw 2 1kw 0 28kw 24 43kw 2 Transformer Rated Output Power Capacity for Control Circuits Model Item 100VA Input AC400V 1...

Страница 26: ...ram b Press the LOCK button to lock 1 2 3 position c 4 is a wooden block Due to its weight it might lose its accuracy during transportation It is to support the weight of the Arm and prevent from coll...

Страница 27: ...om the middle of the wooden crate 4 2 2 The movement of the machine There are using forklift to move the machine The following is the procedure precaution and illustration for moving the machine with...

Страница 28: ...set onto the fastening bolts of the crate base 1 Tools Sling lifting equipment spanner movement plate insertion blocks and level adjusting blocks 2 Procedure a After dismantling the wooden crate get...

Страница 29: ...switches and its other relating data Power supply AC 10 1 50 60HZ 1HZ Cross sectional area of phase conductors supplying the equipment mm2 Rated current A Item Type 220V 380V 415V 440V PE 220V 380V 41...

Страница 30: ...5 1 CHAPTER 5 Operation 5 1 A brief introduction to the relevant operation hardware 5 1 1 For TPR 1230 TPR 1230H The front view of the machine The rear view of the machine...

Страница 31: ...s a base for processing It features also a T shape chamfer which is very convenient for clamping 14 Cutting fluids adjusting knob It is used to control the floating of the cutting fluids 15 Feed rate...

Страница 32: ...5 3 5 1 2 For TPR 1600H For TPR 2000H The front view of the machine The rear view of the machine...

Страница 33: ...together with the two steps feeding rate selection lever it provides 6 options for the feeding rate 13 High low speed changing lever It is designed to switch the spindle rotation speed Used together w...

Страница 34: ...ctive cover s open or close If safety protective cover is open the spindle stop rotation by limit switch single Another if safety protective cover is close the spindle can rotation Precaution 1 When u...

Страница 35: ...the drilling bit Turn on to start and off to stop the lubrication The floating capacity is decided by another knob called the cutting fluids adjusting knob 5 Emergent stop It is pressed to stop the ma...

Страница 36: ...ob 5 Emergent stop It is pressed to stop the machine when at processing and emergence occurs Pull it again for back to release the stop 6 Power light When the external power and the main machine power...

Страница 37: ...e is on the main power light will be on to indicate to the operator that the power is on 4 Release switch It is to release the clamping of the Arm and the Gearbox so that the Gearbox can elevate move...

Страница 38: ...work piece 1 The fixed side of the vise 2 The fixing side with T shape chamfer bolt and nuts 3 The moving side of the vise 4 The screw bar 5 The handle 6 The surface of the vise Clamp work piece as t...

Страница 39: ...sh clean the worktable and the vise surface c Clean the vise surface using clean rag d Position the work piece on the vise surface If it is piercing drilling please insert a block under the work piece...

Страница 40: ...t and the drill head clamp as the following way a Move away the drilling bit or lift the gearbox to the utmost point b Power off machine c Put on gloves d Insert a thick wood plate into the underneath...

Страница 41: ...Put on gloves d Insert a thick wood plate into the underneath of the drill bit and the drill bit clamp e Rotate the feed trip lever clockwise and have the spindle descend about 150 to 200 mm As fig a...

Страница 42: ...oves d Adjust the tightening ring till the drill bit can be inserted e Insert the drill bit into the clamp head at least 25 mm f Put the drill spanner into the hole for tightening g Rotate the spanner...

Страница 43: ...agra ms 1 Cross Switch Descrip tion For TPR 1230 TPR 1230H Type I For TPR 1230 TPR 1230H Type II For TPR 1600H TPR 2000H Steps Turn the cross switch to ARM UP if you want to elevate it up Turn the cro...

Страница 44: ...tightened now Precaution After UNLOCK pressed the Arm can move for and backwards in addition to move left and right wards 5 9 2 For TPR 1600H TPR 2000H 1 Press the figure1 shown in the bottom left Re...

Страница 45: ...ds to be processed according the method in the chapter 3 where the base bolts are required and need to be fastened by nuts 5 10 2 FOR TPR 1600H TPR 2000H 1 Press the figure1 shown in the bottom left R...

Страница 46: ...0 TPR 1230H The position for the pole switch For TPR 1230 TPR 1230H Two speed change lever low speed Speed change levels Speed rpm 88 154 282 Mild steel 25 40 19 25 12 19 Suitable drilling diameter mm...

Страница 47: ...41 25 40 25 40 19 25 12 19 Suitable drilling diameter mm 38 55 38 55 28 38 22 28 Threading metric M16 M20 M16 M20 M6 M16 Suitable automatic feeding step 1 2 3 1 2 3 1 2 3 Two speed change lever high s...

Страница 48: ...is to indicate the current speed 4 Reference point for the three speeds change lever It refers to the current position of the three speeds change lever 5 Reference point for the two speeds change leve...

Страница 49: ...lo speed reference point g Speedometer FOR TPR 1600H TPR 2000H The way to switch speed follows as Step Description a Stop rotation of the spindle b Press down the emergency button c Check the speedome...

Страница 50: ...he fig 2 and align it to the reference point of the step 2 as the mark e in the fig 2 f Align the H of the Hi lo speed changing lever to the Hi lo speed indicator Precaution to switch the rotation spe...

Страница 51: ...s by the machine the way to move it is as follows 1 Power off 2 Put on gloves 3 Squat facing the work piece 4 Lift the work piece with two hands 5 When you are standing up lift and move the work piece...

Страница 52: ...n in the label C d Clamp the fixing lever of the main dial That s to clamp label A shown in the picture e Release the feed trip lever as shown in the label D f Rotate the feed trip lever a little bit...

Страница 53: ...e work piece and the main scale is also pointing to 0 position b Release those two main scale levers That s to release the mark A in the fig c Rotate the main scale mark B Using the depth reference po...

Страница 54: ...a little bit counter clockwise e After the cross switch turned to SPDL FOR the spindle spins clockwise f Rotate the feed trip lever counter clockwise till the threading is finished The operator decid...

Страница 55: ...rude oil animal fat Manganese steel crude oil animal fat Cast iron Without Malleable cast iron Crude oil Brass bronze Kerosene Aluminum and alloy Kerosene When cutting fluids is not applied Having the...

Страница 56: ...1230 TPR 1230H Fig a Fig a 1 Fig b Fig c The relevant names The relevant names No name No name 1 Release switch 3 Adjusting nut 2 Clamping switch 4 Fastening nut Adjust the arm clamping lever as foll...

Страница 57: ...lease the button after pointing the arrow head to b The clamping device is released now b Release the fastening nuts totally 5 pieces in the figure c and mark 4 c Using a wrench adjust the nuts counte...

Страница 58: ...the Arm elevates a little bit c Release the clamping device and adjust the bolts and nuts d Adjust the nut one notch clockwise e Switch the cross switch to the middle f Reset the emergent stop button...

Страница 59: ...evice lever as follows a Press the button marked 1 in the below figure Release the button only after you turn the arrowhead to the point B referring to the figure b After the button released the clami...

Страница 60: ...you turn the arrowhead to the point B referring to the figure b After the button released the claming device can be released b Release the fastening nuts marked 3 in the figure 3 c Turn the adjusting...

Страница 61: ...ox can be turned easily but not too easily Apply the same to the counter side e Screw up the side plate of the above figure 1 6 6Adjustment of the hydraulic pressure Parts Name 1 Hydraulic motor 2 Oil...

Страница 62: ...rn off power b Remove oil sight glass c Rotae spindle by your left hand until clutch turns to the best position for adjustment clutch s key faces outside d Push upper key down key out turn collar righ...

Страница 63: ...r off 7 2 2 Please clean every parts using a metal brush and a rag dipped with oil to rub them Please use CC68 After every day s work please proceed the following maintenance For TPR 1230 TPR 1230H Th...

Страница 64: ...fluids 8 Rub every metal part of the machine using a oil dipped rags 7 2 4 Lubrication Before every day s work please proceed the following maintenance For TPR 1230 TPR 1230H No Part Oil type Volum e...

Страница 65: ...After draining tape the plug with a sheet of band and tighten it back to the drain outlet 6 Release the oil filler plug 7 Add oil to the upper limit of the oil gauge 8 Tighten the oil filler plug For...

Страница 66: ...ng tape the plug with a sheet of band and tighten it back to the drain outlet 6 Release the oil filler plug 7 Add oil to the upper limit of the oil gauge 8 Tighten the oil filler plug For TPR 1600H TP...

Страница 67: ...container on the ground Insert the outlet port of the oil sucking machine into the used oil container 4 Turn off the inlet cover 5 Insert the inlet port of the oil sucking machine into the oil tank t...

Страница 68: ...r points of the column CC68 once per day 2 Oil filler points on top of the gearbox CC68 once per day 3 Oil filler points in the right side of the gearbox CC68 once per day 4 Oil filler points in the l...

Страница 69: ...b Open the control box c Press the relay switch to open as shown in the right picture three minutes after the spindle stops blue Button d Close the control box e Power on 8 2 The spindle overloads and...

Страница 70: ...top button c Using thread releaser rotate the screw tap counter clockwise till it comes out If it is impossible to pull it out you may think to melt it out with EDM or declare it unusable 8 5 How if a...

Страница 71: ...mm M5 2 U 1 25mm 1 25mm W 2 2 V 2 W1 V1 U1 2mm 2 Hydraulic 0 75Kw Motor 3 M3 2 2mm 2mm 2mm 2 2 M6 OL3 SS6 U2 V2 W2 U3 V3 W3 SS4 1 2 3 Low 4 5 6 High 29 31 M3 PB2 PB3 30 29 27 24 25 T1 CR1 15 15 21 T2...

Страница 72: ...evator Motor Clamp Motor Pump Motor 21 OL2 20 Up Release 16 OL1 Clamp 15 M02 Coolant U1 V1 W1 U2 V2 W2 U V W Alarm Lamp Work Lamp Power 2 1 25mm 2 2mm 2 1 25mm 2 23 3 3 3 Coolant Pump Motor 0 1Kw 2 1...

Страница 73: ...T1 8 6 CR1 1 PB2 1 SS1 1 15 12 MS3 1 SOL1 LS1 SOL2 11 7 T1 OL2 MS4 35 T2 2 CR1 PB2 T4 PL 380V 500VA TR 220V E 3 5mm 2 V3 W3 U3 3 M1 5 625Kw Motor Main Coolant Pump Motor Forward U3 V3 W3 Reverse U V...

Страница 74: ...9 4 9 4 Electrical circuit diagram For TPR 2000H CE Standard...

Страница 75: ...E0211001 CR2 Control Relay MK 2P 24V 1 E0208001 T1 Timer Relay ASTP N 24V 6S 1 E0208001 T2 Timer Relay ASTP N 24V 6S 1 M0302019 SOL1 DSG 3C2 02 24V 1 M0302019 SOL2 DSG 3C2 02 24V 1 M0302019 SOL3 DSG 3...

Страница 76: ...LS6 Limit Switch MN 5311 1 E1701002 Work Lamp FS 51441 110V 1 E2305001 Power Alarm Lamp YK 30 24V W 1 E2305001 Power Alarm Lamp YK 30 24V W 1 E1801020 TR Transformer 150VA 1 0 220 380 2 0 24 110 1 E3...

Страница 77: ...U3 Fuse 10 38 20A 1 E3101025 FU4 Fuse 10 38 6A 1 E1801020 TR Transformer 150VA 1 0 220 380 2 0 24 110 1 E0207018 OL1 Overload relay RHN 10 1 8 2 7 1 E0207018 OL2 Overload relay RHN 10 1 8 2 7 1 E02070...

Страница 78: ...1 E1202002 PB1 Push Button YK 22 24V R 1 E1202001 PB2 Push Button YK 22 24V G 1 E1618003 PB3 Emg Push Button YK 30 1B 1 E3602002 AMP Meter S065 20A 1 Main Motor 2 25KW 1 5Kw 200 400V 4P 8P 3PH 1 Elev...

Страница 79: ...YK 30 24V G 1 E1202013 Power Alarm Lamp YK 30 24V G 1 E1701002 Work Lamp FS 51441 110V 1 E0207022 OL1 Overload relay RHN 18 12 5 1 E0207016 OL2 Overload relay RHN 10 3 5 5 1 E0207014 OL3 Overload rel...

Страница 80: ...ay AH3 2 24V 6S 1 E0208001 T3 Timer Relay ASTP N 24V 6S 1 E0208001 T4 Timer Relay ASTP N 24V 6S 1 E3602001 AMP Meter S065 30A 1 Main Motor 5 625KW 220 380V 4P 1 Elevating Motor 1 5KW 220 380V 4P 1 Hyd...

Страница 81: ...YK 30 24V G 1 E1202013 Power Alarm Lamp YK 30 24V G 1 E1701002 Work Lamp FS 51441 110V 1 E0207035 OL1 Overload relay RHN 10 8 5 12 5 1 E0207034 OL2 Overload relay RHN 10 4 6 1 E0207018 OL3 Overload r...

Страница 82: ...y AH3 2 24V 6S 1 E0208001 T3 Timer Relay ASTP N 24V 6S 1 E0208001 T4 Timer Relay ASTP N 24V 6S 1 E3602001 AMP Meter S065 30A 1 Main Motor 5 625KW 220 380V 4P 1 Elevating Motor 2 25KW 220 380V 4P 1 Hyd...

Страница 83: ...9 13 9 9 Electrical circuit diagram For TPR 1230 Standard...

Страница 84: ...9 14 9 10 Electrical circuit diagram For TPR 1230H Standard...

Страница 85: ...9 15 9 11 Electrical circuit diagram For TPR 1600H TPR 2000H Standard...

Страница 86: ...ic Contactor CU11 3a1b 24V 1 Optional E0703004 MS3 Magnetic Contactor CU11 3a1b 24V 1 Optional E0703004 MS4 Magnetic Contactor CU11 3a1b 24V 1 Optional E0703004 MS5 Magnetic Contactor CU11 3a1b 24V 1...

Страница 87: ...h Button Switch SBT 307 or YK30 1B 1 Standard E1202002 PB1 Photo Buckle YK 22 24V 1a1b Red 1 Optional E1202001 PB2 Photo Buckle YK 22 24V 1a1b Green 1 Optional E2303003 PL Pilot Light SP301 110V Red 1...

Страница 88: ...5 Micro Switch MJ2 1704 1 Standard E0901007 LS6 Micro Switch MJ2 1704 1 Standard E3602001 Amp Meter SO65 30A 1 Standard Coolant Pump Motor 1 8HP 2P 3HP L 130mm Column Clamping Motor Vertical 1HP 4P 3P...

Страница 89: ...703004 M4 Magnetic CU11 3a1b 24V 1 Optional E0703004 M5 Magnetic CU11 3a1b 24V 1 Optional E0703004 M6 Magnetic CU11 3a1b 24V 1 Optional E0703004 M0 Magnetic CU11 3a1b 24V 1 Optional E0211002 CR1 Contr...

Страница 90: ...Red 1 Standard E2305003 PL Pilot Light YK30 24V Red 1 Optional E2303004 L Control Light SP301 110V White 1 Standard E2305001 L Control Light YK30 24V White 1 Optional E1618001 E1618003 PB1 Emg Push B...

Страница 91: ...mer Relay ASTP N6S 110V 1 Standard E0208001 T1 Timer Relay ASTP N6S 24V 1 Optional E0208001 T2 Timer Relay ASTP N6S 24V 1 Optional E3602001 Amp Meter S065 30A 1 Standard M0302018 SOL1 SOL2 Solenoid Va...

Страница 92: ...Timer Relay ASTP N 6S 110V 1 Standard E0703006 MS1 Magnetic Contactor CU27 24V 1 Optional E0703006 MS2 Magnetic Contactor CU27 24V 1 Optional E0703004 MS3 Magnetic Contactor CU11 3a1b 24V 1 Optional...

Страница 93: ...V E0207017 OL2 Overload Relay RHN 10 5 5 8 5 1 For 200V 230V E0207016 OL2 Overload Relay RHN 10 3 5 5 1 For 380V 460V E0207016 OL3 Overload Relay RHN 10 3 5 5 1 For 200V 230V E0207018 OL3 Overload Rel...

Страница 94: ...YK22 2A Red 1 Standard E1202005 PB4 Push Button YK22 2A Green 1 Standard E3602004 Amp Meter S065 50A 1 Standard E0303002 Terminal block 20P 20A 1 E0303004 Terminal block TS015 28P 1 E0303001 Terminal...

Страница 95: ...3 Timer Relay ASTP N 6S 110V 1 Standard E0703006 MS1 Magnetic Contactor CU27 24V 1 Optional E0703006 MS2 Magnetic Contactor CU27 24V 1 Optional E0703004 MS3 Magnetic Contactor CU11 3a1b 24V 1 Optional...

Страница 96: ...OL1 Overload Relay RHN 10 8 5 12 5 1 For 380V 460V E0207037 OL1 Overload Relay RHN 80 17 25AP 1 For 200V 230V E0207035 OL2 Overload Relay RHN 10 8 5 12 5 1 For 200V 230V E0207034 OL2 Overload Relay R...

Страница 97: ...Standard E0901008 LS4 Micro Switch TZ 8104 1 Standard E0901008 LS5 Micro Switch TZ 8104 1 Standard E1202004 PB3 Push Button YK22 2A Red 1 Standard E1202005 PB4 Push Button YK22 2A Green 1 Standard E36...

Страница 98: ...ulic of unload equipment The operated pressure requires 38bar When the pressure system can be maintained to 38bar But pipe has clog furthermore hydraulic of pressure continue to rise To further ensure...

Страница 99: ...parts list only for TPR 1230H TPR 1600H TPR 2000H NO Name Specification Q ty 1 Tank 1 2 Hydraulic Pump HGP 1A F6R 1 3 Release Valve DG 02 L 1 4 Pressure Gauge 2 1 2 70bar 1 5 Solenoid Valve DSG 02 3C2...

Результаты поиска

Содержание TPR1230

Отзывы:

Похожие инструкции для TPR1230

Бренды по названию

Популярные бренды

Tailift TPR1230, Руководство по эксплуатации

Результаты поиска

Содержание TPR1230

Отзывы:

Похожие инструкции для TPR1230

Бренды по названию

Популярные бренды