CN212924114U

CN212924114U - Lifting hook for lifting train coupler knuckle

Info

Publication number: CN212924114U
Application number: CN202021443366.3U
Authority: CN
Inventors: 刘飞; 袁树林; 郭晓东; 隋臣; 刘鑫; 丁云朝; 黄勇; 马伟东
Original assignee: CRRC Mudanjiang Jinyuan Casting Co Ltd
Current assignee: CRRC Mudanjiang Jinyuan Casting Co Ltd
Priority date: 2020-07-21
Filing date: 2020-07-21
Publication date: 2021-04-09
Anticipated expiration: 2030-07-21
Also published as: CN214495394U

Abstract

A lifting hook for lifting a train coupler knuckle integrally is a zigzag hook body and comprises a hook rod part, a hook body part and a bending transition part between the hook rod part and the hook body part, and the lifting hook for lifting the train coupler knuckle can realize the hooking and lifting of the trunk direction of the train coupler knuckle according to the detection requirement of ultrasonic flaw detection of the train coupler knuckle, so that the train coupler knuckle lifted to a detection table can be directly detected without moving, overturning, adjusting or moving the position, the working efficiency is obviously improved, the labor intensity is reduced, the labor and the electric power are saved, the production cost is reduced, and the production safety is ensured; simultaneously, an integrated handling instrument of train coupler knuckle includes: the integrated structure for installing the train coupler tongues is arranged on the triangular connecting component formed by the upper hanging chain and the hanging beam, has the characteristics of simple structure and stable operation, can hoist a plurality of train coupler tongues to the detection platform at one time in the production detection process, and further improves the production efficiency.

Description

Lifting hook for lifting train coupler knuckle

Technical Field

The utility model relates to a lifting hook, in particular to train knuckle handling lifting hook.

Background

With the high development of railway transportation industry in China, the traction tonnage of a freight train is continuously increased, the running speed is continuously improved, and the vibration caused by longitudinal impact and alternating load of the train in running is remarkably increased, so that the fatigue fracture and friction damage tendency of a coupler serving as main structural components for vehicle traction, coupling and buffering is very obvious, particularly, the fracture failure of a coupler knuckle with dense structural stress gradually shows an ascending trend, the service life of the coupler knuckle is shortened due to the existence of production defects such as air holes, sand holes, cracks and the like, and the detection and the inspection of the production defects of the train coupler knuckle need to be enhanced. At present, the online detection of a magnetic particle flaw detector in the production process of a train coupler knuckle becomes a necessary link for production quality control, a horizontal special flaw detector for the magnetic particle coupler knuckle is widely used in actual production, the on-line continuous detection of the coupler knuckle can be realized, and the special flaw detector has specific requirements on the upper space position of the coupler knuckle, namely: the coupler knuckle is required to be placed on the conveying track of the flaw detector in the spatial direction shown in figure 1 and subjected to detection of the flaw detector, meanwhile, due to the fact that the weight of the coupler knuckle is large, labor intensity is increased when the coupler knuckle is manually turned in large-scale operation, meanwhile, potential safety hazards are generated, working efficiency is reduced, and the requirement of actual production cannot be met, therefore, a special lifting tool for the coupler knuckle upper piece is needed to be designed and developed, the trunk hole 20 of the coupler knuckle is used as a lifting point, the coupler knuckle is directly lifted, placed and detected, turning movement of the coupler knuckle on a detection line is avoided, and the actual requirement of industrialized production of the coupler knuckle is met.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a train coupler knuckle handling lifting hook realizes the direct handling of train coupler knuckle, puts and detects, reduces intensity of labour, reduces the potential safety hazard, improves work efficiency.

The utility model provides a train knuckle handling lifting hook, wholly is zigzag hook body, includes: hook pole portion, hook body portion and hook pole portion with the transition portion of buckling between the hook body portion, hook pole portion with hook body portion is straight rod shape, and the angle of buckling A between the two is 78 ~ 82, the transition portion is the arc shape, and curvature radius R is 2.0 ~ 2.3 centimetres, forms the cooperation with the arc surface on train coupler knuckle elephant nose orifice mouth end edge, forms lever supporting mechanism be provided with on the end of hook pole portion and articulate the structure for be connected with the handling facility, the length of hook body portion is greater than train coupler knuckle elephant nose orifice aperture diameter.

The utility model provides a train knuckle handling lifting hook the end department of coupler body portion preferably is provided with the region of increasing footpath, the terminal surface that increases footpath region is the curved surface shape, the curved surface shape with the curved surface shape in the region that corresponds of train knuckle elephant nostril inner wall corresponds and forms the cooperation to do benefit to the effective area of contact who increases between the two, improve the hook handling the stability of train knuckle.

Furthermore, in order to increase the relative friction force on the bearing contact surface between the train knuckle lifting hook and the train knuckle and improve the grabbing capacity of the train knuckle lifting hook on the train knuckle, a horizontal sawtooth groove is preferably formed in the end surface arc curved surface of the diameter-increased area of the hook body, and an annular sawtooth groove is preferably formed in the cylindrical surface of the bearing contact section of the hook rod part and the train knuckle lifting hook.

An integrated handling tool for a train knuckle comprising: the lifting device comprises a hanging ring, an upper lifting chain, a lifting beam, a lower lifting chain and a train knuckle lifting hook, wherein the number of the upper lifting chain is 2, one ends of the upper lifting chain are connected with each other by virtue of the hanging ring, the other ends of the upper lifting chain are connected with the two ends of the lifting beam respectively, the upper lifting chain and the lifting beam form a triangular connecting structure, the lifting beam is horizontally arranged, the train knuckle lifting hooks are uniformly distributed and connected to the lower part of the lifting beam through the lower lifting chain respectively, and the number of the train knuckle lifting hooks is 2-5; in production and use, the integrated lifting tool for the train coupler knuckle can lift a plurality of train coupler knuckles to the detection table at one time, does not need to be turned or moved again, and can be directly and sequentially sent into the ultrasonic flaw detector to complete the magnetization and detection processes, so that the labor intensity of workers is reduced, and the production work efficiency is improved.

The beneficial effects of the utility model are that, a train knuckle handling lifting hook is provided, detection requirement to train knuckle ultrasonic inspection, the realization is to the hook handling of train knuckle elephant nostril direction, make the handling can directly detect to the train knuckle on examining the test table, need not to move upset adjustment or shift position, can obviously improve work efficiency, reduce intensity of labour, practice thrift manpower and electric power, reduction in production cost, guarantee production safety, and simultaneously, still provide a train knuckle integration handling instrument, set up the integrated configuration of installing a plurality of train knuckles on the triangle-shaped connecting element that chain and hanging beam are constituteed in the adoption, simple structure has, characteristics that the operation is stable, be applied to in the production testing process, many can once to the test platform handling train knuckle, can further improve production efficiency.

Drawings

Fig. 1, a schematic diagram of a train coupler knuckle structure and a lifting point position thereof.

FIG. 2 is a front view of the train coupler knuckle structure of the embodiment.

FIG. 3 is a side view of the train coupler knuckle structure of the embodiment.

FIG. 4 is a schematic diagram illustrating a hook-up state of a train coupler knuckle according to an embodiment.

Fig. 5 is a schematic diagram of a hook tongue hooking state of the train according to the embodiment.

Fig. 6 is a schematic structural diagram of the integrated lifting tool for the coupler knuckle of the train in the embodiment.

Detailed Description

The claimed technical solution of the present invention is further described below with reference to the following detailed description and accompanying drawings.

A lifting hook for lifting a train coupler knuckle is composed of a hook rod part 1, a hook body part 2 and a transition part 3 formed by bending the hook rod part 1 and the hook body part 2, wherein the length of the hook rod part 1 is 15 centimeters, the length of the hook body part 2 is 6 centimeters, the bending angle a between the hook rod part and the hook body part is 80 degrees, the curvature radius r of the transition part 3 is 2.3 centimeters, a circular ring hanging structure 4 is arranged on the end head of the hook rod part 1, the diameter of the circular ring hanging structure 4 is 8.2 centimeters, and the length of the hook body part 2 is larger than the diameter of a nostril orifice of the train coupler knuckle; the end of the hook body 2 is provided with a diameter increasing area 5, the end face of the diameter increasing area 5 is in a curved surface shape, a horizontal sawtooth groove 6 is formed in the curved surface of the end face of the diameter increasing area 5, and meanwhile, an annular sawtooth groove 7 is formed in the cylindrical surface of a force bearing contact section of the hook rod part 1 and the train coupler knuckle.

When the train knuckle 9 is hoisted by using the train knuckle hoisting lifting hook 8, as shown in figure 4, firstly, the train knuckle lifting hook 8 is inclined, the hook body part 2 is vertically placed into the elephant nose of the train knuckle 9, so that the transition part 3 is hung on the rim of the elephant nose orifice of the train knuckle 9, then, as shown in figure 5, the arc surface of the rim of the elephant nose orifice of the train knuckle 9 is taken as an axial surface, the train knuckle lifting hook 8 is integrally rotated until the hook rod part 1 is upright and is attached to the side surface of one side in the elephant nose orifice of the train knuckle 9, meanwhile, the end surface of the diameter-increased area 5 of the hook body part 2 is abutted against the side surface of the other side in the elephant nose orifice of the train knuckle 9, then, the train knuckle lifting hook 8 is lifted to suspend the train knuckle 9, and at the moment, the gravity center of the train knuckle 9 acts, the hook rod part 1 generates a deflection angle b relative to the vertical direction, the deflection angle b can reach 10 degrees usually, the force bearing points of the hook rod part 1 and the hook body part 2 respectively abut against the side surfaces of two opposite sides in the trunk of the train knuckle 9, the gravity center of the train knuckle 9 is positioned between two abutting points, and the length of the hook body part 2 is greater than the diameter of the trunk orifice of the trunk of the train knuckle 9, so that the train knuckle 9 can be firmly and stably hung on the train knuckle hoisting hook 8, and safe hoisting movement is realized.

A train knuckle integrated lifting tool is composed of a hanging ring 12, an upper lifting chain 11, a lifting beam 13, a lower lifting chain 14 and train knuckle lifting hooks 8, wherein the length of the upper lifting chain 11 is 44 centimeters, the length of the lifting beam 13 is 90 centimeters, the length of the lower lifting chain 14 is 70 centimeters, the number of the upper lifting chain 11 is 2, one ends of the upper lifting chain 11 are connected with each other through the hanging ring 12, the other ends of the upper lifting chain 11 are connected to two ends of the lifting beam 13 respectively, the 2 upper lifting chains 11 and the lifting beam 13 form a triangular connecting component, the lifting beam 13 is horizontally arranged, and 3 train knuckle lifting hooks 8 are uniformly distributed and connected to the lower portion of the lifting beam 13 through the lower lifting chains 14 respectively; in production and use, the integrated lifting tool for the train coupler knuckle can lift 3 train coupler knuckles to a detection platform at one time, after the 3 train coupler knuckles are placed on a workpiece upper rail, the spatial direction and the distance between the train coupler knuckles can completely meet the detection requirements of a horizontal magnetic particle flaw detector, so that the train coupler knuckle does not need to be turned or moved, and the train coupler can be directly and sequentially conveyed into the horizontal magnetic particle flaw detector by a conveying belt on the workpiece upper rail to complete the magnetization and detection processes, thereby effectively reducing the labor intensity of workers, improving the production work efficiency and reducing the detection safety risk.

Claims

1. The utility model provides a train knuckle handling lifting hook which characterized in that wholly is the dogleg of dogleg shape, includes: hook rod portion (1), coupler body portion (2) and hook rod portion (1) with buckle transition portion (3) between coupler body portion (2), hook rod portion (1) with coupler body portion (2) are straight rod shape, and the angle of buckling an between the two is 78 ~ 82, transition portion is the circular arc shape, and curvature radius r is 2.0 ~ 2.3 centimetres be provided with on the end of hook rod portion (1) and articulate structure (4), the length of coupler body portion (2) is greater than the train hook tongue elephant nostril drill way diameter.

2. The train knuckle handling lifting hook of claim 1, wherein: the end of the hook body (2) is provided with a diameter increasing area (5), and the end face of the diameter increasing area (5) is in a curved surface shape.

3. A train knuckle handling hook as claimed in claim 1 or 2, wherein: the hook body (2) is provided with a horizontal saw tooth groove (6) on the end surface arc curved surface of the diameter increasing area (5), and the hook rod part (1) is provided with an annular sawtooth groove (7) on the bearing contact section cylindrical surface.