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2.1 General Structure
TDTG Series Bucket Elevator mainly consists of elevator head, elevator casing, bucket,
bucket belt, elevator foot and drive. Elevator head, elevator tail and elevator casing flanges
are connected with bolts and sealed with sealing gasket. Buckets are fixed to the bucket belt
with special-purpose bucket bolts.
Table 2 Overall Dimension of TDTG Series Elevator
Item
Model
Elevator Foot Size
Elevator Head Size
A
1
A
2
A
3
B
1
B
2
B
3
h
h
1
h
2
n
1
-g
1
A
4
B
4
h
3
TDTG40/18 3×224 798 1506 286 316 410 1150 388 188 8-
φ16 1206 622 1126
TDTG40/23 3×235 850 1558 346 376 470 1150 388 188 8-
φ16 1258 682 1126
TDTG40/28 3×235 850 1558 396 426 520 1150 388 188 8-
φ16 1258 732 1126
TDTG50/18 2×396 900 1868 286 316 474 1300 375 200 6-
φ16 1342 855 1186
TDTG50/23 2×422 952 1922 346 376 514 1300 375 200 6-
φ16 1417 915 1186
TDTG50/28 2×422 952 1922 396 426 564 1300 375 200 6-
φ16 1417 965 1186
Item
Model
Inlet Size
Inlet Size
a
1
a
2
a
3
b
1
b
2
b
3
n
2
-
φg
2
a
4
a
5
a
6
b
4
b
5
b
6
n
3
-
φg
3
TDTG40/18 255 354 2×147 250 2×143 316 8-
φ9 280 319 2×159 250 2×143 316 8-φ9
TDTG40/23 255 354 2×147 310 3×115 376 9-
φ9 280 319 2×159 310 3×115 376 10-φ9
TDTG40/28 255 354 2×147 360 3×132 426 9-
φ9 280 319 2×159 360 3×132 426 10-φ9
TDTG50/18 380 545 3×135 250 2×143 316 9-
φ9 300 339 2×174 250 2×143 316 8-φ9
TDTG50/23 380 545 3×135 310 3×115 376 10-
φ9 300 339 2×174 310 3×115 376 10-φ9
TDTG50/28 380 545 3×135 360 3×132 426 10-
φ9 300 339 2×174 360 3×132 426 10-φ9
2.2 Working Principle and Working Process
After being turned on, motor drives the head pulley through sprocket and chain and
transmits power to bucket belt. Buckets move from bottom to top circularly along the casing
together with bucket belt. When buckets full of materials pass the head pulley, materials, under
the action of centrifugal force and gravity, are thrown out of the buckets and discharged from
the outlet along the housing.
2.3 Structure of Main Parts and their Working Principle
2.3.1 Elevator Head
It consists of elevator head base, head pulley, head pulley shaft and elevator housing and
is fitted with adjustable materials-returning device and buffer chamber to reduce the return of
materials.
2.3.2 Casing
It consists of common casing, air pressure balance casing, maintenance cassing and
explosion proof casing. The standard length of common casing is 2m for each section. Air
pressure balance casing is mounted in the elevator casing through flanges (The installing
