CN219363087U

CN219363087U - Chain wheel shaft structure of electric chain hoist

Info

Publication number: CN219363087U
Application number: CN202320425006.8U
Authority: CN
Inventors: 过奇荣; 符想念; 郭仲; 袁术东; 黄一彦
Original assignee: Chongqing Vitali Lifting Equipment Co ltd
Current assignee: Chongqing Vitali Lifting Equipment Co ltd
Priority date: 2023-03-08
Filing date: 2023-03-08
Publication date: 2023-07-18
Anticipated expiration: 2033-03-08

Abstract

The utility model discloses a chain wheel shaft structure of an electric chain block, and relates to the technical field of hoisting mechanical accessories; the chain wheel comprises a chain wheel shaft body and a chain wheel body, wherein the chain wheel body penetrates through the chain wheel shaft body and is fixedly connected with the chain wheel shaft body, two cavities are formed in the outer wall of the chain wheel shaft body, a limiting mechanism is arranged in each of the two cavities, and a contraction assembly is arranged on the surface of each limiting mechanism; the limiting mechanism comprises two frame plates, and one frame plate is movably contacted with the inner wall of one cavity; when the sprocket body is fixed behind the middle part of sprocket shaft body, keep away from each other through the vertical direction of two clamping plates that drive vertical correspondence to drive two sets of clamping plates horizontal direction and be close to each other, two sets of clamping plates press from both sides the sprocket body after will fixing through two sets of friction pads, and carry out spacingly to the sprocket body, thereby convenient realization the spacing of the sprocket body after fixing, avoid the sprocket body to appear the circumstances of skew, and then the effectual stability that improves the sprocket body after fixing.

Description

Chain wheel shaft structure of electric chain hoist

Technical Field

The utility model relates to the technical field of hoisting mechanical accessories, in particular to a chain wheel shaft structure of an electric chain hoist.

Background

Electric chain hoist: the electric chain hoist is also called a loop chain electric hoist, and is light and small-sized hoisting equipment. The electric chain hoist consists of a motor, a transmission mechanism and a chain wheel. The electric chain hoist is produced according to international standard, the machine body is beautiful, firm and durable, the internal gear is quenched at high temperature, the wear resistance and toughness of the gear are improved, the international most advanced technology is adopted, the working is fine, and the fit between gears is tight. The chain wheel shaft of the electric chain hoist in the prior art has the following problems:

in the prior art, when a sprocket is fixed on the outer wall of a sprocket shaft, the sprocket shaft structure of an electric chain hoist is proposed to solve the above problems because the sprocket is limited due to the lack of the sprocket, and the sprocket is easily slightly deviated along with the friction generated by the long-time rotation of the sprocket, thereby resulting in poor stability of the fixed sprocket.

Disclosure of Invention

In order to solve the problem of poor stability of the fixed chain wheel; the utility model aims to provide a chain wheel shaft structure of an electric chain block.

In order to solve the technical problems, the utility model adopts the following technical scheme: the chain wheel shaft structure of the electric chain hoist comprises a chain wheel shaft body and a chain wheel body, wherein the chain wheel body penetrates through the chain wheel shaft body and is fixedly connected with the chain wheel shaft body, two cavities are formed in the outer wall of the chain wheel shaft body, a limiting mechanism is arranged in each of the two cavities, and a contraction assembly is arranged on the surface of each limiting mechanism;

the limiting mechanism comprises two frame plates, one frame plate is movably contacted with the inner wall of a cavity, two clamping plates are arranged on opposite sides of the frame plates, a friction gasket is fixedly arranged on one side of each clamping plate, one side of each friction gasket, far away from the clamping plates, is movably contacted with one side of the sprocket body, two ends of the sprocket shaft body are respectively provided with a groove, the inner wall of each groove is respectively provided with a threaded rod in a rotating mode, one threaded rod penetrates through one cavity and is in threaded connection with one frame plate, and two rotating seats are fixedly arranged at one ends of the threaded rods.

Preferably, two guide grooves are formed in the inner walls of the two cavities, guide blocks are connected to the inner walls of the guide grooves in a sliding mode, and the opposite sides of the two adjacent guide blocks are fixedly connected with the two sides of one frame plate.

Preferably, the shrinkage assembly comprises two double-headed screws, one end of each double-headed screw is rotationally connected with one surface of a frame plate, the opposite sides of each frame plate are respectively provided with a sliding groove, the inner walls of the sliding grooves are respectively and slidably connected with two sliding blocks, and one double-headed screw penetrates through one sliding groove and is rotationally connected with the two sliding blocks in a threaded manner.

Preferably, one side of the sliding block is fixedly provided with an L-shaped fixing rod, and one end of the L-shaped fixing rod, which is far away from the sliding block, is fixedly connected with one surface of the clamping plate.

Preferably, one end of each of the two double-ended screws is fixedly provided with a rotating sleeve, and one surface of each of the two rotating sleeves, which is far away from the double-ended screw, is provided with a hexagonal inner groove.

Compared with the prior art, the utility model has the beneficial effects that:

when the sprocket body is fixed behind the middle part of sprocket shaft body, keep away from each other through the vertical direction of two clamping plates that drive vertical correspondence to drive two sets of clamping plates horizontal direction and be close to each other, two sets of clamping plates press from both sides the sprocket body after will fixing through two sets of friction pads, and carry out spacingly to the sprocket body, thereby convenient realization the spacing of the sprocket body after fixing, avoid the sprocket body to appear the circumstances of skew, and then the effectual stability that improves the sprocket body after fixing.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a connection between a limiting mechanism and a sprocket body according to the present utility model.

FIG. 2 is a schematic view showing a sectional structure of a sprocket shaft according to the present utility model.

FIG. 3 is a schematic view of the connection of the retraction assembly and the stop mechanism of the present utility model.

In the figure: 1. a sprocket shaft body; 11. a cavity; 2. a sprocket body; 3. a limiting mechanism; 31. a frame plate; 32. a clamping plate; 33. a friction pad; 34. a guide groove; 35. a guide block; 36. a groove; 37. a threaded rod; 38. a rotating seat; 4. a retraction assembly; 41. a double-ended screw; 42. a chute; 43. a slide block; 44. an L-shaped fixing rod; 45. a rotating sleeve; 46. a hexagonal inner groove.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples: as shown in fig. 1-3, the utility model provides a chain wheel shaft structure of an electric chain hoist, which comprises a chain wheel shaft body 1 and a chain wheel body 2, wherein the chain wheel body 2 penetrates through the chain wheel shaft body 1 and is fixedly connected with the chain wheel shaft body 1, the fixed connection between the chain wheel body 2 and the chain wheel shaft body 1 is in detachable fixed connection in the prior art, two cavities 11 are formed in the outer wall of the chain wheel shaft body 1, a limiting mechanism 3 is arranged in the two cavities 11, and a contraction assembly 4 is arranged on the surface of the limiting mechanism 3;

the limiting mechanism 3 comprises two frame plates 31, one frame plate 31 is movably contacted with the inner wall of the cavity 11, two clamping plates 32 are arranged on opposite sides of the two frame plates 31, grooves 36 are formed in two ends of the chain wheel shaft body 1, threaded rods 37 are rotatably arranged on the inner walls of the two grooves 36, and one threaded rod 37 penetrates through one cavity 11 and is in threaded rotary connection with one frame plate 31.

Through adopting above-mentioned technical scheme, through setting up stop gear 3, stop gear 3 is spacing to sprocket body 2 after fixed to improve the stability of sprocket body 2 after fixed, through setting up shrink subassembly 4, be convenient for follow-up dismantlement to sprocket body 2.

A friction pad 33 is fixedly installed on one side of the clamping plate 32, and one side of the friction pad 33 away from the clamping plate 32 is in movable contact with one side of the sprocket body 2.

By adopting the above technical scheme, through setting up the friction pad 33, after the clamping plate 32 is pressed from both sides sprocket body 2 tight through friction pad 33, the stability of the sprocket body 2 that is pressed from both sides tight is improved to the friction pad 33.

Two guide grooves 34 are formed in the inner walls of the two cavities 11, guide blocks 35 are slidably connected to the inner walls of the guide grooves 34, and the opposite sides of the two adjacent guide blocks 35 are fixedly connected to the two sides of one frame plate 31.

By adopting the above technical scheme, through setting up guide slot 34 and guide block 35, guide block 35 carries out the direction of horizontal direction to frame board 31, makes frame board 31 keep the horizontal direction removal.

One end of each of the two threaded rods 37 is fixedly provided with a rotary seat 38.

By adopting the above technical scheme, the rotating seat 38 is rotated by the external wrench tool, and the threaded rod 37 is rotated by the rotating seat 38.

The shrinkage assembly 4 comprises two double-headed screws 41, one end of one double-headed screw 41 is rotationally connected with one surface of one frame plate 31, sliding grooves 42 are formed in opposite sides of the two frame plates 31, two sliding blocks 43 are slidably connected with inner walls of the two sliding grooves 42, and one double-headed screw 41 penetrates through one sliding groove 42 and is rotationally connected with the two sliding blocks 43 in a threaded manner.

By adopting the above technical scheme, by rotating the double-headed screw 41, the double-headed screw 41 drives the two sliders 43 to slide in opposite directions or in opposite directions along the inner wall of the chute 42.

An L-shaped fixing rod 44 is fixedly arranged on one side of the sliding block 43, and one end, away from the sliding block 43, of the L-shaped fixing rod 44 is fixedly connected with one surface of the clamping plate 32.

Through adopting above-mentioned technical scheme, through driving two sliders 43 and sliding in opposite directions or sliding in opposite directions, two sliders 43 make two clamping plates 32 be close to each other or keep away from each other through two L type dead levers 44, and after two clamping plates 32 are close to each other and shrink to the inside of cavity 11, the staff of being convenient for dismantle sprocket body 2.

One end of each of the two double-headed screws 41 is fixedly provided with a rotating sleeve 45, and one surface of each of the two rotating sleeves 45, which is far away from the double-headed screws 41, is provided with a hexagonal inner groove 46.

By adopting the above technical scheme, the hexagonal wrench rotates the double-ended screw 41 by rotating the sleeve 45 by sleeving the external hexagonal wrench inside the hexagonal inner groove 46.

Working principle: when the sprocket body 2 is fixed in the middle of the sprocket shaft 1, the staff first respectively sleeve the external hexagonal wrench inside the two hexagonal inner grooves 46, rotates the hexagonal wrench, rotates the two double-headed screws 41 through the two rotating sleeves 45, drives the two groups of sliding blocks 43 (one group of sliding blocks 43 is two sliding blocks 43 vertically corresponding to each other) to slide back along the inner walls of the corresponding sliding grooves 42 while rotating the two double-headed screws 41, and the two groups of sliding blocks 43 separate the two groups of clamping plates 32 from each other through the four L-shaped fixing rods 44 until the two groups of sliding blocks 43 slide to the two ends of the corresponding sliding grooves 42 and then stops rotating the hexagonal wrench;

subsequently, the staff rotates two rotation seats 38 through external tools, two rotation seats 38 rotate two threaded rods 37, two threaded rods 37 rotate and simultaneously drive two rack plates 31 to horizontally move, and two rack plates 31 keep moving in opposite directions, two rack plates 31 enable two groups of clamping plates 32 and two groups of friction gaskets 33 to synchronously move until opposite sides of the two groups of friction gaskets 33 are tightly contacted with two end faces of a sprocket body 2 and then stop rotating the two rotation seats 38, at the moment, the two groups of clamping plates 32 clamp the fixed sprocket body 2 through the two groups of friction gaskets 33 and limit the sprocket body 2, so that the limit of the fixed sprocket body 2 is conveniently realized, the situation that the sprocket body 2 deviates is avoided, and the stability of the fixed sprocket body 2 is effectively improved.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. The utility model provides a sprocket shaft structure of electronic chain hoist, includes sprocket shaft body (1) and sprocket body (2), its characterized in that: the chain wheel body (2) penetrates through the chain wheel shaft body (1) and is fixedly connected with the chain wheel shaft body (1), two cavities (11) are formed in the outer wall of the chain wheel shaft body (1), a limiting mechanism (3) is arranged in each of the two cavities (11), and a contraction assembly (4) is arranged on the surface of each limiting mechanism (3);

stop gear (3) are including two frame boards (31), one frame board (31) and the inner wall movable contact of a cavity (11), two the opposite side of frame board (31) all is equipped with two clamping plates (32), recess (36) are all seted up at the both ends of sprocket shaft body (1), two threaded rod (37) are all installed in the inner wall rotation of recess (36), one threaded rod (37) runs through a cavity (11) and with a frame board (31) screw thread swivelling joint.

2. The chain wheel axle structure of the electric chain hoist according to claim 1, characterized in that a friction pad (33) is fixedly installed on one side of the clamping plate (32), and one side of the friction pad (33) far away from the clamping plate (32) is movably contacted with one side of the chain wheel body (2).

3. The chain wheel shaft structure of the electric chain hoist according to claim 1, characterized in that two guide grooves (34) are formed in the inner walls of the two cavities (11), guide blocks (35) are slidably connected to the inner walls of the guide grooves (34), and the opposite sides of two adjacent guide blocks (35) are fixedly connected to the two sides of one frame plate (31).

4. A chain wheel axle construction of an electric chain block according to claim 1, characterized in that one end of both threaded rods (37) is fixedly fitted with a swivel seat (38).

5. The chain wheel axle structure of an electric chain hoist according to claim 1, characterized in that the retraction assembly (4) comprises two double-headed screws (41), one end of one double-headed screw (41) is rotatably connected with one surface of one frame plate (31), two opposite sides of the two frame plates (31) are respectively provided with a sliding groove (42), two sliding blocks (43) are slidably connected with the inner walls of the two sliding grooves (42), and one double-headed screw (41) penetrates through one sliding groove (42) and is in threaded rotation connection with the two sliding blocks (43).

6. The chain wheel axle structure of an electric chain hoist according to claim 5, wherein an L-shaped fixing rod (44) is fixedly installed on one side of the slider (43), and one end of the L-shaped fixing rod (44) far from the slider (43) is fixedly connected with one side of the clamping plate (32).

7. The chain wheel shaft structure of the electric chain hoist according to claim 5, wherein one end of each of the two double-headed screws (41) is fixedly provided with a rotating sleeve (45), and one surface of each of the two rotating sleeves (45) far away from the double-headed screws (41) is provided with a hexagonal inner groove (46).