CN216583810U

CN216583810U - Self-weight-driven automatic clamping hoisting mechanism

Info

Publication number: CN216583810U
Application number: CN202122823525.3U
Authority: CN
Inventors: 王进军; 何佳; 房宁; 田锡钰
Original assignee: Shenyang Hanking Precision Bearing Co ltd
Current assignee: Shenyang Hanking Precision Bearing Co ltd
Priority date: 2021-11-17
Filing date: 2021-11-17
Publication date: 2022-05-24
Anticipated expiration: 2031-11-17

Abstract

The utility model relates to the technical field of hoisting auxiliary devices, and particularly provides a self-weight-driven automatic clamping hoisting mechanism which comprises a mandrel, a plurality of frames, a central sleeve, connecting rods and levers, wherein the frames are radially arranged at the lower end of the mandrel, the lower end of the central sleeve is provided with an opening and movably sleeved at the upper end of the mandrel, the number of the connecting rods and the number of the levers are the same as that of the frames, one end of each connecting rod is rotatably connected to the outer side wall of the central sleeve, the other end of each connecting rod is rotatably connected with the lever, the middle section of each lever is rotatably connected with one end of each frame, which is far away from the mandrel, one end of each lever, which is far away from the connecting rod, is bent towards the direction of the mandrel, and a bracket is arranged at one end of each lever, which is far away from the connecting rod. This is novel can reduce operator intensity of labour, promotes security and efficiency, guarantees the part jack-up and the stationarity of transport.

Description

Self-weight-driven automatic clamping hoisting mechanism

Technical Field

The utility model relates to the technical field of hoisting auxiliary devices, and particularly provides a self-weight-driven automatic clamping hoisting mechanism.

Background

At present, finished products of large bearings are generally carried in an inner ring and outer ring sling binding mode, bearing carrying is not stable enough, impurities are easy to mix into precision bearings, and cleanliness exceeds a standard. The packaged bearing is sealed by the packaging bag because of the central mounting hole, and the hanging strip cannot be bound; most of the existing self-clamping mechanisms are two-point type, on one hand, the disc type bearing is difficult to clamp to a diameter part, and the disc type bearing is clamped on a string to easily cause slipping and falling to cause lifting injury. On one hand, the thin-wall bearing with heavy weight is easy to deform due to overlarge clamping force of two points, so that the product quality is influenced. And unhooking requires workers to overcome the gravity of the hoisting mechanism by physical force to do work, so that the hoisting mechanism is easy to fatigue and has mechanical injury danger. The mechanism can solve the problems and fill up the blank of the industry.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a self-weight driving automatic clamping and hoisting mechanism.

The utility model is realized in such a way, and provides a self-weight-driven automatic clamping hoisting mechanism which comprises a mandrel, racks, a center sleeve, connecting rods and levers, wherein the racks are radially arranged at the lower end of the mandrel, the lower end of the center sleeve is provided with an opening and movably sleeved at the upper end of the mandrel, the number of the connecting rods and the levers is the same as that of the racks, one end of each connecting rod is rotatably connected to the outer side wall of the center sleeve, the other end of each connecting rod is rotatably connected with the lever, the middle section of each lever is rotatably connected with one end, far away from the mandrel, of the rack, one end, far away from the connecting rods, of each lever is bent towards the direction of the mandrel, and a bracket is arranged at one end, far away from the connecting rods, of each lever.

Preferably, the central sleeve is a clearance fit with the mandrel.

Further preferably, the anti-falling device further comprises an anti-falling pin, and a plurality of pin holes are formed in the mandrel and the center sleeve in the vertical direction.

Further preferably, the device further comprises a labor-saving spring, the upper end of the labor-saving spring is connected with the upper end of the cavity in the center sleeve, and the other end of the labor-saving spring is connected with the upper end of the mandrel through a spring supporting plate.

Preferably, the bracket is of an L-shaped structure, a vertical plate of the bracket is rotatably connected with the lever, and a nylon cushion is arranged on the upper surface of a transverse plate of the bracket.

Further preferably, the connecting rod is rotatably connected with the central sleeve through a connecting rod shaft; the connecting rod is rotationally connected with the lever through a lever shaft; the middle section of the lever is rotatably connected with the rack through a fulcrum shaft; the lever is rotatably connected with the bracket through a bracket shaft.

Further preferably, a hanging ring is arranged at the upper end of the central sleeve.

Further preferably, the lever is divided into two detachable sections, and the two sections are connected through rivets.

Compared with the prior art, the utility model has the advantages that:

the self-centering hook is matched with a crane for use, and has a self-weight clamping function, a self-centering function, an unhooking prevention function and an unhooking function; the labor intensity of operators is reduced, the safety and the efficiency are improved, and the stability of hoisting and carrying parts is ensured.

Drawings

The utility model is described in further detail below with reference to the following figures and embodiments:

FIG. 1 is a schematic sectional view of a front view structure of the present invention;

FIG. 2 is a schematic top view of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Referring to fig. 1 and 2, the utility model provides a self-weight-driven automatic clamping and hoisting mechanism, which comprises a mandrel 15, racks 8, a central sleeve 2, connecting rods 4 and levers 6, wherein the racks 8 are radially arranged at the lower end of the mandrel 15, the lower end of the central sleeve 2 is provided with an opening and is movably sleeved at the upper end of the mandrel 15, the number of the connecting rods 4 and the levers 6 is the same as that of the racks 8, one end of each connecting rod 4 is rotatably connected to the outer side wall of the central sleeve 2, the other end of each connecting rod is rotatably connected with the lever 6, the middle section of each lever 6 is rotatably connected with one end of the rack 8, which is far away from the mandrel 15, one end of each lever 6, which is far away from the connecting rod 4, is bent towards the direction of the mandrel 15, and one end of each lever 6, which is far away from the connecting rod 4, is provided with a bracket 12.

In the hoisting process, the semi-automatic operation of the corresponding crane is required to be matched. The crane hook lifts the mechanism, and the center positions of the plurality of frames 8 are manually close to the center of the bearing to be lifted, so that the brackets 12 (in the embodiment, 4 are provided) are close to the bottom end surface of the outer circle of the bearing. When the crane pulls the mechanism upwards, the central sleeve 2 slides upwards along the mandrel 15, and simultaneously the connecting rod 4 displaces upwards and pushes the upper end of the lever 6 to move upwards, and the movement track is shown in figure 1. The middle part of the driving lever 6 rotates around the connecting position with the frame 8, and the resistance end 10 of the lever 6 moves inwards to drive the bracket 12 to move inwards. When the clamping position 14 of the bracket 12 is tightly attached to the bearing, the lower end of the bracket 12 extends into the lower end face of the bearing, and manual alignment is needed. The crane continues to lift, and the displacement inside the whole mechanism is zero because the bearing rigidity is incompressible, so that the whole mechanism can be regarded as a rigid body. The bearing and the mechanism can be lifted together by continuously lifting, and the locking force of the mechanism is larger as the bearing is heavier.

As a specific movable connection, the center sleeve 2 is in clearance fit with the mandrel 15. At the beginning stage of lifting, the crane drives the central sleeve 2 to move upwards along the mandrel 15, the plurality of brackets 12 are gradually close to the bearings, after the brackets 12 clamp the bearings, the whole mechanism is of a rigid structure, and the central sleeve 2 does not move upwards relative to the mandrel 15 any more.

In order to prevent the falling off in the hoisting process, as an improvement of the technical scheme, the hoisting machine further comprises a falling-off prevention pin 16, and a plurality of pin holes 17 are formed in the mandrel 15 and the central sleeve 2 along the vertical direction.

The anti-drop pins 16 are inserted into the corresponding pin holes 17, and the locking mechanism is anti-drop. After the bearing is moved to the target position, the crane hook slowly descends along the vertical direction. After the end surface of the bearing is stable, the anti-drop pin 16 can be pulled out, the lifting hook continues to descend, the central sleeve 2 descends under the action of the self weight of the mechanism, the connecting rod 4 is driven to move along the track arc direction, and the resistance end 10 of the lever rotates along the direction opposite to the connecting position of the rack 8. The brackets 12 are opened to effect unhooking. When unhooking is complete, the anti-release pin 16 is inserted again to re-lock the mechanism to achieve a rigid body, at which time the 4 brackets 12 open. And operating the hoisting mechanism of the crane to finish loading and unloading operation.

In order to save labor, the mechanism further comprises a labor-saving spring 19, the upper end of the labor-saving spring 19 is connected with the upper end of the cavity in the central sleeve 2, and the other end of the labor-saving spring is connected with the upper end of the mandrel 15 through a spring supporting plate 18.

When the main mechanism is righted and unhooked, if the mechanism is limited by space, the lever 6 needs to be finely adjusted manually, the lever 6 and the central sleeve 2 are balanced by partial gravity, and manpower is saved according to the implementation.

As a preferable structure of the bracket 12 and in order to prevent the bearing contact surface from being bitten, the bracket 12 is in an L-shaped structure, the vertical plate of the bracket 12 is rotatably connected with the lever 6, and the upper surface of the transverse plate of the bracket 12 is provided with a nylon cushion 13. The upper surface of the transverse plate with the L-shaped structure is processed into an inclined form by a nylon cushion 13, so that the workpiece is protected from collision and sliding.

In order to smoothly realize the rotary connection, the connecting rod 4 is rotatably connected with the central sleeve 2 through a connecting rod shaft 3; the connecting rod 4 is rotationally connected with the lever 6 through a lever shaft 5; the middle section of the lever 6 is rotatably connected with the rack 8 through a fulcrum shaft 9; the lever 6 is rotatably connected to the bracket 12 via a bracket shaft 11.

In order to be matched with a crane conveniently, the upper end of the central sleeve 2 is provided with a hanging ring 1.

In order to adapt to different equipment to be hoisted, the lever 6 is divided into two detachable sections, and the two sections are connected through rivets 7.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. Dead weight drive self-holding hoisting machine constructs, a serial communication port, including dabber (15), frame (8), center cover (2), connecting rod (4) and lever (6), a plurality of frame (8) are radial setting at the lower extreme of dabber (15), center cover (2) lower extreme opening, movably cup joint the upper end at dabber (15), connecting rod (4), the number of lever (6) is the same with the number of frame (8), connecting rod (4) one end is rotated and is connected the lateral wall at center cover (2), the other end rotates with lever (6) and is connected, the middle section of lever (6) is rotated with the one end that dabber (15) were kept away from in frame (8) and is connected, the one end that connecting rod (4) were kept away from in lever (6) is buckled towards the direction of dabber (15), and the one end of keeping away from connecting rod (4) in lever (6) is equipped with bracket (12).

2. Self-weight-driven automatic clamping hoisting mechanism according to claim 1, characterized in that the central sleeve (2) is clearance-fitted to the mandrel (15).

3. The self-weight-driven automatic clamping and hoisting mechanism according to claim 1, further comprising a drop-proof pin (16), wherein a plurality of pin holes (17) are formed in the mandrel (15) and the central sleeve (2) along the vertical direction.

4. The self-weight-driven automatic clamping and hoisting mechanism according to claim 1, further comprising a labor-saving spring (19), wherein the upper end of the labor-saving spring (19) is connected with the upper end of the inner cavity of the central sleeve (2), and the other end of the labor-saving spring is connected with the upper end of the mandrel (15) through a spring supporting plate (18).

5. The self-weight-driven automatic clamping and hoisting mechanism of claim 1, wherein the bracket (12) is of an L-shaped structure, the vertical plate of the bracket (12) is rotatably connected with the lever (6), and a nylon cushion (13) is arranged on the upper surface of the transverse plate of the bracket (12).

6. The self-weight-driven automatic clamping and hoisting mechanism according to claim 1, wherein the connecting rod (4) is rotatably connected with the central sleeve (2) through a connecting rod shaft (3); the connecting rod (4) is rotationally connected with the lever (6) through a lever shaft (5); the middle section of the lever (6) is rotatably connected with the rack (8) through a fulcrum shaft (9); the lever (6) is rotatably connected to the bracket (12) via a bracket shaft (11).

7. The self-weight driven automatic clamping and hoisting mechanism according to claim 1, wherein a hoisting ring (1) is arranged at the upper end of the central sleeve (2).

8. The self-weight-driven automatic clamping and hoisting mechanism according to claim 1, wherein the lever (6) is divided into two detachable sections, and the two sections are connected through rivets (7).