Disassembly-free crane wheel machining, repairing and clamping structure

Abstract

The utility model belongs to the technical field of wheel machining and repairing, and relates to a disassembly-free crane wheel machining and repairing clamping structure which is characterized by comprising a chuck, a locking nut and a movable center, threads are arranged at two ends of a main shaft of a wheel, and the locking nut is mounted on the thread structure at one end in a threaded manner. And a clamping jaw of the chuck is clamped on the locking nut. When the wheel is repaired, the wheel does not need to be disassembled, the wheel can be directly installed, the repairing efficiency of the outer rim of the wheel is greatly improved, and the labor intensity of disassembly and assembly is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of wheel processing and repairing, and relates to a clamping tool, in particular to a disassembly-free crane wheel processing and repairing clamping structure. Background Art

[0002] The wheels of a crane are generally composed of a wheel assembly, a spindle, a bearing seat and other components, and a thread structure is processed at both ends of the spindle. In the prior art, when processing the thread structure, one end of the spindle is fixed on a four-jaw chuck, and then the other end is threaded, and then the processed threaded end is clamped and the other end of the spindle is threaded. However, the four-jaw chuck is not stable in clamping the thread structure, which affects the processing quality of the threads at both ends of the spindle.

[0003] In addition, when the wheels of the crane work for a long time, the outer rims will inevitably wear out. After wear, due to the inconsistent diameter of the wheels, abnormal noises and rail gnawing will occur during operation.

[0004] In order to avoid this problem, the outer rim of the wheel needs to be turned and repaired. The existing practice is to disassemble the wheel assembly, spindle, bearing, bearing seat and other components of the wheel, and then turn and repair the wheel diameter of the wheel assembly, and then reassemble the wheel after the repair is completed. The existing technology has the problem of time-consuming and labor-intensive disassembly and reassembly. Summary of the invention

[0005] The utility model aims to provide a disassembly-free crane wheel processing and repair clamping structure which has a scientific and reasonable structural design, is easy to operate, improves repair efficiency, and is easy to implement.

[0006] The utility model solves the technical problem through the following technical solutions:

[0007] A disassembly-free crane wheel processing, repair and clamping structure is characterized in that it includes a chuck, a locking nut and a movable center. The main shaft of the wheel is a structure with threads at both ends, and the locking nut is threadedly installed on the threaded structure at one end, and the clamping claws of the chuck are clamped on the locking nut.

[0008] Moreover, the chuck is a three-jaw chuck or a four-jaw chuck.

[0009] Moreover, the locking nut is an open locking nut with an opening on the nut ring.

[0010] The advantages and beneficial effects of the utility model are:

[0011] The disassembly-free crane wheel processing and repair clamping structure fixes the wheel with a threaded structure on the main shaft through the cooperation of the chuck and the locking nut. When repairing the wheel, there is no need to disassemble the wheel and it can be directly installed, which greatly improves the repair efficiency of the outer rim of the wheel and reduces the labor intensity of disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 The utility model is a schematic diagram of the structure of the four-jaw chuck and the locking nut assembly.

[0014] Reference numerals

[0015] 1-chuck, 2-locking nut, 3-wheel, 4-movable center, 5-claw, 6-thread structure, 7-opening. DETAILED DESCRIPTION

[0016] The present invention will be further described in detail below through specific embodiments. The following embodiments are merely descriptive and not restrictive, and the protection scope of the present invention cannot be limited by them.

[0017] A disassembly-free crane wheel processing, repair and clamping structure, the innovation of which lies in: comprising a chuck 1, a locking nut 2 and a movable center 4, the chuck is a three-jaw chuck or a four-jaw chuck, the spindle of the wheel 3 is a structure with threads at both ends, the locking nut is threadedly installed on the threaded structure 6 at one end, the clamping claw 5 of the chuck is clamped on the locking nut, and the end of the threaded structure at the other end is top-connected with a movable center installed on a lathe.

[0018] In order to further ensure the stability of the chuck clamping the wheel, the locking nut is an open locking nut with an opening 7 on the nut ring. The wheel is clamped by the deformation of the opening.

[0019] Working principle:

[0020] When the workpiece (wheel) is clamped, an open locking nut adapted to the end of the workpiece is used, and the clamping claws of the chuck are in direct contact with the open locking nut, which is separated from the thread structure on the main shaft of the workpiece to avoid damage to the main shaft thread structure and protect the thread. The utility model can complete the repair processing of the wheel rim without disassembling and separating the wheel from other components such as the main shaft, greatly improving the repair efficiency and reducing the labor intensity of workers.

[0021] Working process:

[0022] 1. Screw on the open locking nut that matches the thread on the spindle end thread structure of the workpiece. Since the locking nut has a certain elasticity after opening, the workpiece can be clamped during installation;

[0023] 2. If Figure 1 As shown, the workpiece is clamped, the opening on the open locking nut avoids the position of the claws, and the workpiece is clamped between the four claws. After the workpiece is aligned, the turning and repair work of the workpiece, i.e., the wheel rim, is completed.

[0024] The utility model has the advantages of fast clamping for batch production of workpieces, and the wheel set does not need to be disassembled.

[0025] The utility model can ensure the dimensional accuracy of the thread structure of the secondary chamfering process and the coaxiality of the thread structures at both ends of the main shaft when the wheel is assembled and clamped.

[0026] Although the embodiments and drawings of the present invention are disclosed for illustrative purposes, those skilled in the art will appreciate that various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. A crane wheel processing, repairing and clamping structure without disassembly, characterized in that: It includes a chuck, a locking nut and a movable center. The main shaft of the wheel is a structure with threads at both ends. The locking nut is threadedly installed on the threaded structure at one end, and the clamping claws of the chuck are clamped on the locking nut.

2. The non-disassembly crane wheel processing, repairing and clamping structure according to claim 1 is characterized by: The chuck is a three-jaw chuck or a four-jaw chuck.

3. The crane wheel processing, repairing and clamping structure without disassembly according to claim 1 is characterized by: The locking nut is an open locking nut with an opening on the nut ring.

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