CN218454887U

CN218454887U - Eccentric shaft of large crane

Info

Publication number: CN218454887U
Application number: CN202222225566.7U
Authority: CN
Inventors: 李韶兴; 神楚仪; 马杰
Original assignee: Shaoguan Defeng Machinery Co ltd
Current assignee: Shaoguan Defeng Machinery Co ltd
Priority date: 2022-08-23
Filing date: 2022-08-23
Publication date: 2023-02-07
Anticipated expiration: 2032-08-23

Abstract

The utility model relates to an eccentric shaft field, in particular to a large crane eccentric shaft, which comprises an installation bracket, a limiting part, a rotating bracket, a limiting ring, a rotating part, a connecting bracket, an eccentric connecting piece, a connecting buckle and an output shaft; the mounting bracket is connected with the limiting piece; the mounting bracket and the limiting pieces are symmetrically arranged on two sides of the rotating bracket; the rotating bracket is in a circular ring shape; the inner wall of the rotating bracket is connected with a limiting ring; the inner wall of the limiting ring is rotationally connected with the rotating piece; the inner wall of the rotating part is connected with the connecting bracket; the side surface of the connecting bracket is connected with the side surface of the eccentric connecting piece; the utility model discloses a when this device can effectually improve the transmission efficiency of this device, rotate the combination that piece and eccentric connecting piece and can increase input torque when this device input carries out power input through linking bridge to improve eccentric pivoted stability, guaranteed the rotational stability of this device.

Description

Eccentric shaft of large crane

Technical Field

The utility model relates to an eccentric shaft technical field especially relates to large crane eccentric shaft.

Background

The eccentric workpiece is a workpiece with the outer circle and the outer circle of the part or the axis of the outer circle and the axis of the inner hole being parallel but not coincident and deviating by a distance. The distance between these two parallel axes is called eccentricity. The eccentric shaft is usually fixed on the rotating shaft of the motor through an eccentric hole, and when the motor is started, the eccentric shaft makes a cam motion. Therefore, the composite material is widely applied to automobiles, engines, pumps and the like. When current eccentric shaft damaged, the axis body of even taking the eccentric shaft changes jointly, causes the waste of resource easily, and the installation of eccentric shaft is inconvenient with the change simultaneously.

Chinese patent with No. CN213575126U discloses a high-strength eccentric shaft for a port crane, which comprises a rotating shaft, a stopper, a reset spring and an eccentric shaft body, wherein the rotating shaft is in the shape of a circular convex block, a first groove is arranged on the right side of the rotating shaft, a second groove is arranged on the top end of the first groove, a sliding rod is arranged in the middle of the second groove, a connecting hole is arranged in the stopper, the stopper is sleeved on the sliding rod through the connecting hole, the reset spring is sleeved on the sliding rod, one end of the reset spring is connected with the stopper, the other end of the reset spring is connected with the bottom of the second groove, a limiting hole is arranged on the top end of the left side of the eccentric shaft body, and the eccentric shaft body extends into the first groove and is in sliding connection with the side wall of the first groove. And the first recess in rotation axis right side top sets up to two sets of, conveniently adjusts advantages such as eccentricity.

However, the above-mentioned known solutions have the following disadvantages: above-mentioned scheme has the transmission efficiency low in the middle of the in-service use process, and the installation degree of difficulty is big and to service environment compatibility low scheduling problem.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a technical problem to exist among the background art, the utility model provides a large crane eccentric shaft, the utility model discloses a when this device can effectually improve the transmission efficiency of this device, rotate the combination that piece and eccentric connecting piece can carry out power input through linking bridge at this device input, can increase input torque to improve eccentric pivoted stability, guaranteed the rotational stability of this device.

The utility model provides a large-scale crane eccentric shaft, which comprises an installation bracket, a limiting part, a rotating bracket, a limiting ring, a rotating part, a connecting bracket, an eccentric connecting piece, a connecting buckle and an output shaft;

the mounting bracket is connected with the limiting piece; the mounting bracket and the limiting piece are symmetrically arranged at two sides of the rotating bracket; the rotating bracket is in a circular ring shape; the inner wall of the rotating bracket is connected with a limiting ring; the inner wall of the limiting ring is rotationally connected with the rotating piece; the inner wall of the rotating part is connected with the connecting bracket; the side surface of the connecting bracket is connected with the side surface of the eccentric connecting piece; the side surface of the eccentric connecting piece is connected with the connecting buckle; the inner wall of the connecting buckle is provided with a limiting groove, and the limiting groove is connected with the output shaft.

Preferably, the side surface of the mounting bracket is provided with fixing threaded holes, and the fixing threaded holes are distributed on the side surface of the mounting bracket.

Preferably, an anti-slip layer is arranged on the side face of the limiting part, a sliding damping part is arranged inside the limiting part, and the sliding damping part is connected with the mounting bracket in a sliding damping mode.

Preferably, the limiting ring is internally provided with an annular sliding groove, the outer end face of the rotating piece is provided with a bulge, and the bulge is in sliding connection with the annular sliding groove.

Preferably, the rotating part is internally provided with a counterweight, and the counterweight and the eccentric connecting piece are symmetrically arranged.

Preferably, the eccentric connecting piece is provided with a clamping piece, and the clamping piece is connected with the side face of the connecting buckle.

Preferably, the side face of the connecting support is provided with a connecting groove, and a reinforcing piece is arranged inside the connecting support.

Preferably, a positioning column is arranged on the side surface of the rotating support.

The above technical scheme of the utility model has following profitable technological effect:

the utility model discloses a when this device can effectually improve the transmission efficiency of this device, rotate the combination that piece and eccentric connecting piece can carry out power input through linking bridge at this device input, can increase input torque, thereby eccentric pivoted stability has been improved, the rotational stability of this device has been guaranteed, can effectually improve the connection stability of this device and to the compatibility of different output shafts through connect buckle, what the structure of spacing ring can guarantee to rotate the completion simultaneously is the circular motion of standard, thereby the rotation power input stability of this device input has been improved.

Drawings

FIG. 1 is a schematic structural view of an embodiment of the eccentric shaft of the large crane according to the present invention;

fig. 2 is a schematic structural view of a rotating bracket in the eccentric shaft of the large crane provided by the utility model;

fig. 3 is a side view of the eccentric shaft of the large crane according to the present invention;

reference numerals: 1. mounting a bracket; 2. a limiting member; 3. rotating the bracket; 4. a limiting ring; 5. a rotating member; 6. connecting a bracket; 7. an eccentric connecting member; 8. connecting a buckle; 9. and an output shaft.

Detailed Description

Example one

As shown in fig. 1-3, the eccentric shaft of the large crane provided by the present invention comprises a mounting bracket 1, a limiting member 2, a rotating bracket 3, a limiting ring 4, a rotating member 5, a connecting bracket 6, an eccentric connecting member 7, a connecting buckle 8 and an output shaft 9;

the mounting bracket 1 is connected with the limiting piece 2; the mounting bracket 1 and the limiting piece 2 are symmetrically arranged at two sides of the rotating bracket 3; the rotating bracket 3 is annular; the inner wall of the rotating bracket 3 is connected with a limiting ring 4; the inner wall of the limiting ring 4 is rotationally connected with the rotating piece 5; the inner wall of the rotating part 5 is connected with the connecting bracket 6; the side surface of the connecting bracket 6 is connected with the side surface of the eccentric connecting piece 7; the side surface of the eccentric connecting piece 7 is connected with a connecting buckle 8; a limiting groove is arranged on the inner wall of the connecting buckle 8 and is connected with the output shaft 9; fixing threaded holes are formed in the side face of the mounting bracket 1 and distributed in the side face of the mounting bracket 1; a counterweight is arranged in the rotating part 5 and is symmetrically arranged with the eccentric connecting piece 7; the eccentric connecting piece 7 is provided with a clamping piece, and the clamping piece is connected with the side surface of the connecting buckle 8; a connecting groove is arranged on the side surface of the connecting bracket 6, and a reinforcing piece is arranged inside the connecting bracket 6; a positioning column is arranged on the side surface of the rotating bracket 3.

In this embodiment, can effectual improvement eccentric pivoted transmission efficiency through this device, torque conversion through this device, can effectually enlarge transmission torque effect through this device, thereby eccentric pivoted stability has been guaranteed, through rotating 5 inside inhomogeneous counter weights, can make when rotating 5 high-speed rotations, the focus can not change, thereby the vibrations that produce when having reduced this device rotation, structure through spacing ring 4 can rotate 5 in the middle of the process and exert even side direction holding power to rotating 5, thereby avoided rotating 5 and taken place the wearing and tearing of deviating, the life of this device has been prolonged, the input that can be convenient for of the structure that adopts linking bridge 6 carries out the transmission with this device and is connected, thereby the installation degree of difficulty of this device has been reduced.

Example two

As shown in fig. 2-3, compared with the first embodiment, in the first embodiment, the eccentric shaft of the large crane provided by the present invention has an anti-slip layer on the side surface of the limiting member 2, and a sliding damping member is arranged inside the limiting member and connected with the mounting bracket 1 in a sliding damping manner; an annular sliding groove is formed in the limiting ring 4, a protrusion is arranged on the outer end face of the rotating piece 5, and the protrusion is connected with the annular sliding groove in a sliding mode.

The utility model discloses an in one embodiment, the mechanism of slide damping piece can be convenient for locating part 2 adjusting position, and the combination of cyclic annular spout can play good limiting displacement to rotation key 5 simultaneously.

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

Claims

1. The large-scale crane eccentric shaft is characterized by comprising a mounting bracket (1), a limiting piece (2), a rotating bracket (3), a limiting ring (4), a rotating piece (5), a connecting bracket (6), an eccentric connecting piece (7), a connecting buckle (8) and an output shaft (9);

the mounting bracket (1) is connected with the limiting piece (2); the mounting bracket (1) and the limiting piece (2) are symmetrically arranged at two sides of the rotating bracket (3); the rotating bracket (3) is annular; the inner wall of the rotating bracket (3) is connected with a limiting ring (4); the inner wall of the limiting ring (4) is rotationally connected with the rotating piece (5); the inner wall of the rotating part (5) is connected with the connecting bracket (6); the side surface of the connecting bracket (6) is connected with the side surface of the eccentric connecting piece (7); the side surface of the eccentric connecting piece (7) is connected with a connecting buckle (8); the inner wall of the connecting buckle (8) is provided with a limiting groove, and the limiting groove is connected with the output shaft (9).

2. The eccentric shaft of a large crane according to claim 1, wherein the side of the mounting bracket (1) is provided with fixing threaded holes, and the fixing threaded holes are distributed on the side of the mounting bracket (1).

3. The eccentric shaft of large crane according to claim 1, wherein the side of the position-limiting member (2) is provided with an anti-slip layer, and the position-limiting member is internally provided with a sliding damping member, and the sliding damping member is connected with the mounting bracket (1) in a sliding damping manner.

4. The eccentric shaft of large crane according to claim 1, wherein the limiting ring (4) has a circular sliding groove therein, and the rotating member (5) has a protrusion on its outer end surface, the protrusion being slidably connected to the circular sliding groove.

5. Eccentric shaft according to claim 1, characterised in that the rotating element (5) is provided with counterweights inside, which are arranged symmetrically to the eccentric connection (7).

6. Eccentric shaft according to claim 1, characterised in that the eccentric connecting piece (7) is provided with a clamping piece, which is connected with the side of the connecting buckle (8).

7. Eccentric shaft according to claim 1, characterised in that the connecting bracket (6) is provided with connecting grooves on its side and that the connecting bracket (6) is provided with reinforcement inside.

8. Eccentric shaft according to claim 1, characterised in that the turning bracket (3) is provided with positioning posts on its sides.