CN216336171U

CN216336171U - Clamping jaw mechanism for vertically lifting shaft parts

Info

Publication number: CN216336171U
Application number: CN202122595165.6U
Authority: CN
Inventors: 李琳; 郑加友
Original assignee: Wanxiang Group Corp; Wanxiang Qianchao Transmission Shaft Co Ltd
Current assignee: Wanxiang Group Corp; Wanxiang Qianchao Transmission Shaft Co Ltd
Priority date: 2021-10-27
Filing date: 2021-10-27
Publication date: 2022-04-19
Anticipated expiration: 2031-10-27

Abstract

The utility model relates to the technical field of lifting tools, in particular to a clamping jaw mechanism for vertically lifting an axle part, which comprises a lifting ring, two upper arms, two lower arms, two clamping jaws and a spring, wherein the lifting ring is arranged on the two upper arms; the two upper arms are rotatably suspended on the hanging ring through upper pin shafts which are horizontally arranged, the lower ends of the two upper arms are respectively hinged with the upper end of one lower arm through middle pin shafts, the lower parts of the two lower arms are mutually crossed, the crossed part is hinged through the lower pin shafts, the two clamping jaws are horizontally arranged oppositely and are respectively fixed at the lower ends of the two lower arms, and the springs are connected between the upper pin shafts and the lower pin shafts. The utility model can realize the vertical hoisting of the workpiece, assist the loading and unloading actions and reduce the labor intensity of workers.

Description

Clamping jaw mechanism for vertically lifting shaft parts

Technical Field

The utility model relates to the technical field of lifting tools, in particular to a clamping jaw mechanism for vertically lifting shaft parts.

Background

A crane used for assisting production in a production workshop lifts and carries a workpiece by clamping, so that the labor intensity of workers is reduced. The clamping jaw mechanism of the crane which is most commonly used at present is suitable for parallel hoisting of shaft workpieces, clamping jaws are perpendicular to the workpieces, and after the hoisting, the workpieces and the ground move in a parallel state.

The shaft parts are parallel when being clamped and lifted, can carry shaft workpieces, but are not suitable for equipment needing vertical feeding. For example, in vertical machining equipment, a vertical lathe and a vertical spline milling machine all need a workpiece to vertically enter the equipment, a clamping jaw structure of an existing crane cannot be realized, workers need to manually carry the workpiece to feed, the weight of a heavy spline shaft can reach more than 30KG, the labor intensity is high, and the risk of industrial injury in the machining process is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the background technology, and provides a clamping jaw mechanism for vertically lifting a shaft part aiming at the problem of vertically feeding a heavy shaft workpiece, so that the workpiece is vertically lifted, the feeding and discharging actions are assisted, and the labor intensity of workers is reduced.

The technical scheme adopted by the utility model is as follows:

a clamping jaw mechanism for vertically lifting shaft parts comprises a lifting ring, two upper arms, two lower arms, two clamping jaws and a spring; the two upper arms are rotatably suspended on the hanging ring through upper pin shafts which are horizontally arranged, the lower ends of the two upper arms are respectively hinged with the upper end of one lower arm through middle pin shafts, the lower parts of the two lower arms are mutually crossed, the crossed part is hinged through the lower pin shafts, the two clamping jaws are horizontally arranged oppositely and are respectively fixed at the lower ends of the two lower arms, and the springs are connected between the upper pin shafts and the lower pin shafts.

Preferably, the two lower arms are bent at a distance from the lower side of the middle pin shaft, a first included angle of 160 degrees is formed between the plane where the bent parts of the two lower arms are located and the plane where the two upper arms are located, and a second included angle of 110 degrees is formed between the plane where the bent parts of the two lower arms are located and the plane where the clamping jaws are located.

Preferably, a hand push rod is fixed to one of the two lower arms.

The utility model has the beneficial effects that: the utility model changes the limitation that the existing clamping jaws can only lift in parallel, the two clamping jaws can lift after vertically clamping the shaft workpiece, the operation is simple, the cost is lower, the auxiliary loading and unloading action in the vertical equipment is realized, and the labor intensity of staff is reduced.

Drawings

Fig. 1 is a schematic front view of the present invention.

Fig. 2 is a left side view of the present invention.

Fig. 3 is a schematic top view of the present invention.

Fig. 4 is a schematic perspective view of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples, but the present invention is not limited to the following examples, so that the objects, solutions and advantages of the present invention can be more clearly understood by those skilled in the art.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified and limited, specific meanings of the general terms in the present invention may be specifically understood by those skilled in the art.

As shown in fig. 1 to 4, the clamping jaw mechanism for vertically lifting an axle part provided by the utility model comprises a lifting ring 1, two upper arms 3, two lower arms 6, two clamping jaws 8 and a spring 5. Two upper arms 3 are rotatably hung on the hanging ring 1 through upper pin shafts 2 which are horizontally arranged, the lower ends of the two upper arms 3 are respectively hinged with the upper end of one lower arm 6 through middle pin shafts 4, the lower parts of the two lower arms 6 are mutually crossed, the crossed part is hinged through a lower pin shaft 7, two clamping jaws 8 are horizontally arranged oppositely and are respectively fixed at the lower ends of the two lower arms 6, and the springs 5 are connected between the upper pin shafts 2 and the lower pin shafts 7. Under the action of the spring 5, when a workpiece is not clamped, an included angle is kept between the two upper arms 3, and an included angle is also kept between the two lower arms 6.

The two lower arms 6 are bent at a distance from the lower side of the middle pin shaft 4, a first included angle alpha of 160 degrees is formed between the plane where the bending parts of the two lower arms 6 are located and the plane where the two upper arms 3 are located, and a second included angle beta of 110 degrees is formed between the plane where the bending parts of the two lower arms 6 are located and the plane where the clamping jaws 8 are located.

For the convenience of operation, a hand push rod 9 is fixed on one of the two lower arms 6, the fixed push rod is located on the rear side of the lower arm, and after a workpiece is clamped, an operator can stabilize the clamping jaw mechanism through the hand push rod.

The working principle of the utility model is as follows: the lifting hook is hung on the lifting hook at the lower end of the crane, so that the heavy shaft parts are vertically lifted, and the loading and unloading of vertical equipment are assisted. According to the utility model, two included angles are designed, wherein the first included angle is 160 degrees, the upper side part of the workpiece is effectively avoided, and the second included angle is 110 degrees, so that the workpiece is axially vertical to the clamping axis. In the hoisting process, the clamping jaw mechanism is subjected to upward drawing force, the lower end of the clamping jaw mechanism is in a cross structure, the friction force between the workpiece and the clamping jaw can enable the clamping jaw to automatically clamp and lock the workpiece, the heavier the workpiece is, the more stable and firm the clamping is, and therefore the workpiece is vertically hoisted by the lower end clamping jaw when the upper end is hoisted. The upper pin shaft 2 and the lower pin shaft 7 are connected through springs, and the springs 5 automatically loosen the clamping jaws when the crane is in a released state, so that the release of a workpiece is realized, and the auxiliary loading and unloading of the vertical equipment are completed.

The above description is only a preferred embodiment of the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an axle type part lifts by crane clamping jaw mechanism perpendicularly which characterized in that: comprises a lifting ring (1), two upper arms (3), two lower arms (6), two clamping jaws (8) and a spring (5); two upper arms (3) rotationally hang on rings (1) through the upper pin axle (2) of horizontal arrangement, and the lower extreme of two upper arms (3) is articulated through well round pin axle (4) and the upper end of a underarm (6) respectively, and the lower part intercrossing of two underarms (6), and the crossing is articulated through lower round pin axle (7), and two clamping jaws (8) horizontal relative arrangement to fix respectively in the lower extreme of two underarms (6), are being connected between upper pin axle (2) and the underpin axle (7) spring (5).

2. The vertical lifting clamping jaw mechanism for the shaft parts as claimed in claim 1, is characterized in that: the two lower arms (6) are bent at a distance from the lower side of the middle pin shaft (4), a first included angle (alpha) of 160 degrees is formed between the plane where the bending parts of the two lower arms (6) are located and the plane where the two upper arms (3) are located, and a second included angle (beta) of 110 degrees is formed between the plane where the bending parts of the two lower arms (6) are located and the plane where the clamping jaws (8) are located.

3. The vertical lifting clamping jaw mechanism for the shaft parts as claimed in claim 1 or 2, is characterized in that: one of the two lower arms (6) is fixed with a hand push rod (9).