CN222475271U - Tail tensioning mechanism with buffering and sealing functions - Google Patents
Tail tensioning mechanism with buffering and sealing functions Download PDFInfo
- Publication number
- CN222475271U CN222475271U CN202421151311.3U CN202421151311U CN222475271U CN 222475271 U CN222475271 U CN 222475271U CN 202421151311 U CN202421151311 U CN 202421151311U CN 222475271 U CN222475271 U CN 222475271U
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- sliding sleeve
- sealing
- buffering
- tensioning
- sliding
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- 238000007789 sealing Methods 0.000 title claims abstract description 58
- 230000007246 mechanism Effects 0.000 title claims abstract description 16
- 230000003139 buffering effect Effects 0.000 title claims abstract description 14
- 238000009434 installation Methods 0.000 claims abstract description 9
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 238000012856 packing Methods 0.000 claims description 11
- 210000004907 gland Anatomy 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model discloses a tail tensioning mechanism with buffering and sealing functions, which comprises a tensioning screw rod, a sliding sleeve, an adjusting nut, a spring and a sealing cover, wherein the sliding sleeve is arranged on an installation seat in a sliding penetrating mode, the tensioning screw rod in threaded connection with the sliding sleeve is arranged in the sliding sleeve, the adjusting nut in threaded connection with the sliding sleeve is arranged on the sliding sleeve, the spring is sleeved on the sliding sleeve between the adjusting nut and the installation seat, the sealing cover in sliding sealing connection with the sliding sleeve is arranged at the upper end of the installation seat, and an anti-falling step is arranged at the upper end of the sliding sleeve.
Description
[ Field of technology ]
The utility model relates to the technical field of elevators, in particular to a tail tensioning mechanism with buffering and sealing functions.
[ Background Art ]
The bucket elevator mainly comprises a head casing, a middle casing, a tail part, operation parts (chain and hopper), a driving device, a tensioning device and the like.
The main equipment of lifting machine as material transportation, its transmission structure mostly is chain drive and belt drive's transmission mode, generally for guaranteeing equipment transmission process's stability and security, can set up overspeed device tensioner to it, be about to establish driven one side as the expansion end, realize whole driven tensioning through the mode of applying the heavy burden to the expansion end, but ash leakage phenomenon appears easily in overspeed structure and damage structures such as lead screw easily when adjusting the tensioning, adjust unstably, consequently, need a afterbody straining device who has buffering and sealing action, make its leakproofness promote greatly, and have the cushioning effect, play the driven tensioning of control lifting machine chain of more stable safety, realize chain drive's stability and security, improve the leakproofness of lifting machine in addition.
[ utility model ]
The utility model aims to solve the problems in the prior art, and provides a tail tensioning mechanism with buffering and sealing functions, which can realize the stability and safety of chain transmission and improve the sealing performance of a lifting machine.
In order to achieve the above purpose, the utility model provides a tail tensioning mechanism with buffering and sealing functions, which comprises a tensioning screw rod, a sliding sleeve, an adjusting nut, a spring and a sealing cover, wherein the sliding sleeve is arranged on an installation seat in a sliding penetrating mode, the tensioning screw rod in threaded connection with the sliding sleeve is arranged in the sliding sleeve, the adjusting nut in threaded connection with the sliding sleeve is arranged on the sliding sleeve, the spring is sleeved on the sliding sleeve between the adjusting nut and the installation seat, the sealing cover in sliding sealing connection with the sliding sleeve is arranged at the upper end of the installation seat, and an anti-falling step is arranged at the upper end of the sliding sleeve.
Preferably, the sealing cover comprises a sealing seat, a sealing gland and a packing, wherein the packing is arranged in the sealing seat and used for sealing with the sliding sleeve, and the sealing gland for pressing and fixing the packing is arranged at the upper end of the sealing seat.
Preferably, a screwing head is arranged at the upper end of the tensioning screw rod.
Preferably, two symmetrically arranged anti-rotation planes are arranged on the peripheral surface of the anti-falling step.
The utility model has the beneficial effects that the sliding sleeve is arranged on the mounting seat in a sliding way, the tensioning screw rod in threaded connection with the sliding sleeve is arranged in the sliding sleeve, the adjusting nut in threaded connection with the sliding sleeve is arranged on the sliding sleeve, the spring is sleeved on the sliding sleeve between the adjusting nut and the mounting seat, the sealing cover in sliding sealing connection with the sliding sleeve is arranged at the upper end of the mounting seat, and the anti-drop step is arranged at the upper end of the sliding sleeve.
The features and advantages of the present utility model will be described in detail by way of example with reference to the accompanying drawings.
[ Description of the drawings ]
FIG. 1 is a schematic illustration of a tail tensioning mechanism with cushioning and sealing action in accordance with the present utility model;
FIG. 2 is a cross-sectional view of a tail tensioning mechanism with cushioning and sealing action of the present utility model;
FIG. 3 is a schematic illustration of the connection of the present utility model to a tail gear.
In the figure, a 1-tensioning screw rod, a 2-sliding sleeve, a 3-adjusting nut, a 4-spring, a 5-sealing cover, a 6-mounting seat, a 7-anti-falling step, an 8-screwing head, a 9-anti-rotation plane, a 51-sealing seat, a 52-sealing gland and a 53-packing.
[ Detailed description ] of the invention
Referring to fig. 1, 2 and 3, the tail tensioning mechanism with buffering and sealing functions comprises a tensioning screw rod 1, a sliding sleeve 2, an adjusting nut 3, a spring 4 and a sealing cover 5, wherein the sliding sleeve 2 is arranged on a mounting seat 6 in a sliding penetrating mode, the sliding sleeve 2 is internally provided with the tensioning screw rod 1 in threaded connection with the tensioning screw rod, the sliding sleeve 2 is provided with the adjusting nut 3 in threaded connection with the sliding sleeve, the sliding sleeve 2 between the adjusting nut 3 and the mounting seat 6 is sleeved with the spring 4, the upper end of the mounting seat 6 is provided with the sealing cover 5 in sliding sealing connection with the sliding sleeve 2, and the upper end of the sliding sleeve 2 is provided with an anti-falling step 7.
The sealing cover 5 comprises a sealing seat 51, a sealing gland 52 and a packing 53, wherein the packing 53 is arranged in the sealing seat 51 and used for sealing with the sliding sleeve 2, and the sealing gland 52 for pressing and fixing the packing 53 is arranged at the upper end of the sealing seat 51.
The upper end of the tensioning screw rod 1 is provided with a screwing head 8.
The peripheral surface of the anti-drop step 7 is provided with two symmetrically arranged anti-rotation planes 9.
The working process of the utility model comprises the following steps:
The tail tensioning mechanism with buffering and sealing functions is characterized in that in the working process of the tail tensioning mechanism, a tail tensioning structure is arranged on the upper side of a tensioning movable door 11 of a tail shell 10 in the whole operation process of a lifter, the sleeving position of a sliding sleeve 2 and the tensioning screw 1 is changed by rotating the tensioning screw 1, the tensioning degree of a chain is changed, the tensioning of the tensioning screw 1 is controlled by the tension of a spring 4 in the tail tensioning structure, the tightness degree of the spring 4 is changed by rotating an adjusting nut 3, the sliding sleeve 2 moves up and down to drive the tensioning screw 1, the tail transmission device 12 moves up and down along a sliding rail 13 along with the sliding sleeve, the tensioning degree of the chain is changed, meanwhile, the spring 4 has elasticity, and the buffering function is achieved during adjustment, so that the structure has a certain flexible function on the tensioning control of the chain, and damage to the tensioning screw 1 is avoided. In the actual operation process of the elevator, the tensioning degree of the tail tensioning mechanism can also change along with the change of chain transmission, and the operation stability is improved.
The tensioning screw rod 1 is sleeved with the sliding sleeve 2, and the tensioning screw rod 1 is full threads, so that the sleeved relative position of the tensioning screw rod 1 and the sliding sleeve 2 can be adjusted, and the threaded connection strength is high;
The sealing gland 52, the packing 53 and the sealing seat 51 form a sealing structure, so that ash leakage of the sliding sleeve in the moving process can be prevented, and the sealing effect is achieved.
The above embodiments are illustrative of the present utility model, and not limiting, and any simple modifications of the present utility model fall within the scope of the present utility model.
Claims (4)
1. The tail tensioning mechanism with the buffering and sealing functions is characterized by comprising a tensioning screw rod (1), a sliding sleeve (2), an adjusting nut (3), a spring (4) and a sealing cover (5), wherein the sliding sleeve (2) is arranged on an installation seat (6) in a sliding penetrating mode, the tensioning screw rod (1) in threaded connection with the sliding sleeve is arranged in the sliding sleeve (2), the adjusting nut (3) in threaded connection with the sliding sleeve is arranged on the sliding sleeve (2), the spring (4) is sleeved on the sliding sleeve (2) between the adjusting nut (3) and the installation seat (6), the sealing cover (5) in sliding sealing connection with the sliding sleeve (2) is arranged at the upper end of the installation seat (6), and an anti-falling step (7) is arranged at the upper end of the sliding sleeve (2).
2. A tail tensioning mechanism with buffering and sealing functions as claimed in claim 1, wherein the sealing cover (5) comprises a sealing seat (51), a sealing gland (52) and a packing (53), the packing (53) is arranged in the sealing seat (51) and used for sealing with the sliding sleeve (2), and the sealing gland (52) for pressing and fixing the packing (53) is arranged at the upper end of the sealing seat (51).
3. A tail tensioning mechanism with buffering and sealing functions as claimed in claim 1, characterized in that the upper end of the tensioning screw rod (1) is provided with a screwing head (8).
4. A tail tensioning mechanism with buffering and sealing action as claimed in any one of claims 1 to 3, characterized in that the circumferential surface of the anti-drop step (7) is provided with two symmetrically arranged anti-rotation planes (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421151311.3U CN222475271U (en) | 2024-05-24 | 2024-05-24 | Tail tensioning mechanism with buffering and sealing functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421151311.3U CN222475271U (en) | 2024-05-24 | 2024-05-24 | Tail tensioning mechanism with buffering and sealing functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222475271U true CN222475271U (en) | 2025-02-14 |
Family
ID=94498640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421151311.3U Active CN222475271U (en) | 2024-05-24 | 2024-05-24 | Tail tensioning mechanism with buffering and sealing functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222475271U (en) |
-
2024
- 2024-05-24 CN CN202421151311.3U patent/CN222475271U/en active Active
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