Special tool for disassembling pin shaft of underground carry-scraper

Abstract

The utility model aims to provide a special tool for disassembling a pin shaft of an underground carry-scraper, aiming at solving the problems existing in a pin shaft disassembling mode on an existing carry-scraper bucket and a bracket mechanism of the existing carry-scraper bucket. The special tool consists of a screw rod, a pull hammer and a height-adjustable support frame, the screw rod is horizontally arranged, one end of the screw rod is inserted into the screw rod sleeve, the outer surface of the other end of the screw rod is provided with external threads corresponding to threads on the end face of a pin shaft of the underground carry-scraper, and the pull hammer is arranged on the screw rod. The device is adjustable in height, capable of disassembling pin shafts at different positions and heights, convenient and safe to disassemble, wide in application range and capable of saving labor time. Cost waste such as crashing injury safety risk and pin shaft damage caused by human negligence is greatly avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of underground scraper maintenance and repair, and particularly relates to a special tool for disassembling a scraper pin shaft. Background Art

[0002] The traditional method of disassembling the pin of the scraper inevitably requires the use of knocking to separate the pin from the scraper. This method has safety hazards and is also prone to defects such as pin deformation. Therefore, it is necessary to study and design a pin disassembly tool to reasonably complete the disassembly, protect the pin end face from damage, and improve the operator's work safety and work efficiency. Summary of the invention

[0003] The purpose of the utility model is to solve the problems existing in the pin disassembly method of the existing scraper bucket and the support mechanism of the scraper bucket, and to provide a special tool for disassembling the pin of an underground scraper. The device is height-adjustable and can disassemble pins at different heights. The disassembly is convenient and safe, with a wide range of applications and labor-saving time. It greatly solves the safety risk of being hit by a person due to negligence, the cost waste of the pin damage, etc.

[0004] A special tool for disassembling the pin shaft of an underground scraper, which is composed of a screw rod, a pull hammer, and an adjustable height support frame;

[0005] The adjustable height support frame consists of a screw sleeve, two support rods and a bottom bracket. The support rod is connected by a vertical rod and an oblique rod. The oblique rods of the two support rods are fixedly connected to the outer wall of the screw sleeve, and a triangle is formed between the two oblique rods and the horizontal line. The bottom bracket is two hollow rods with screw holes and bolts and a connecting rod connecting the two hollow rods. The vertical rod of the support rod is inserted into the hollow rod. The screw is arranged horizontally, one end of the screw is inserted into the screw sleeve, and the outer surface of the other end of the screw is provided with an external thread corresponding to the end thread of the pin shaft of the underground shovel loader. The pull hammer is arranged on the screw.

[0006] Furthermore, the above-mentioned special tool for removing the pin shaft of the underground scraper loader, the adjustable height support frame also includes a locking wheel, and the locking wheels are two and installed at the bottom end of the cavity rod.

[0007] Furthermore, in the above-mentioned special tool for disassembling the pin shaft of the underground scraper, the pulling hammer is a linear bearing pulling hammer.

[0008] Furthermore, in the above-mentioned special tool for disassembling the pin shaft of the underground scraper loader, lifting rings are provided on both sides of the pulling hammer.

[0009] Compared with the prior art, the advantages of the present invention are:

[0010] The device is height-adjustable and can disassemble pins at different heights. It is convenient and safe to disassemble, has a wide range of applications, and saves labor time. It greatly solves the safety risks of being injured by human negligence, the cost waste of pin damage, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 , the front view of the device;

[0012] Figure 2 , left side view of the device.

[0013] Among them, 1. screw, 2. pull hammer, 11. external thread, 21. lifting ring, 31. screw sleeve, 32. locking wheel, 33. vertical rod, 34. oblique rod, 35. screw hole, 36. cavity rod, 37. connecting rod. DETAILED DESCRIPTION

[0014] Example

[0015] A special tool for disassembling the pin shaft of an underground scraper, comprising a screw rod 1, a pull hammer 2, and an adjustable height support frame;

[0016] The adjustable height support frame is composed of a screw sleeve 31, two support rods 32 and a bottom bracket. The support rod is connected by a vertical rod 33 and an oblique rod 34. The oblique rods of the two support rods are fixedly connected to the outer wall of the screw sleeve, and a triangle is formed between the two oblique rods and the horizontal line. The bottom bracket is two cavity rods 36 with screw holes 35 and locking screws and a connecting rod 37 connecting the two cavity rods. The adjustable height support frame also includes a moving wheel 38. There are two moving wheels installed at the bottom end of the cavity rod. The vertical rod of the support rod is inserted into the cavity rod. The screw is arranged horizontally, one end of the screw is inserted into the screw sleeve, and the outer surface of the other end of the screw is provided with an external thread 11 corresponding to the central threaded hole of the pin shaft of the underground shovel loader. The pull hammer is arranged on the screw. The pull hammer is a linear bearing pull hammer, and lifting rings 21 are provided on both sides of the pull hammer.

[0017] The method of using this device is:

[0018] When in use, the height of the triangular height-adjustable support frame is adjusted by adjusting the length of the vertical rod of the support rod inserted into the cavity rod, and then the locking screw is tightened to make the height of the screw consistent with the height of the pin to be disassembled, and the moving direction of the two locking wheels is consistent with the running direction of the pin, and the front end of the screw is screwed into the central threaded hole of the pin to be disassembled, and the pull hammer is pulled by the lifting ring to hit the screw baffle back and forth, so that the impact force is transmitted from the screw to the pin to be disassembled, and the pin can be removed. By disassembling the pin with this tooling, it is easy to remove the pin that is embedded in a complex structure and difficult to remove by force, and it can also protect the integrity of the end face of the pin.

Claims

1. A special tool for disassembling the pin shaft of an underground scraper, characterized in that: It consists of a screw rod, a pull hammer, and an adjustable height support frame; The adjustable height support frame consists of a screw sleeve, two support rods and a bottom bracket. The support rod is connected by a vertical rod and an oblique rod. The oblique rods of the two support rods are fixedly connected to the outer wall of the screw sleeve, and a triangle is formed between the two oblique rods and the horizontal line. The bottom bracket is two hollow rods with screw holes and bolts and a connecting rod connecting the two hollow rods. The vertical rod of the support rod is inserted into the hollow rod. The screw is arranged horizontally, one end of the screw is inserted into the screw sleeve, and the outer surface of the other end of the screw is provided with an external thread corresponding to the end thread of the pin shaft of the underground shovel loader. The pull hammer is arranged on the screw.

2. A special tool for removing the pin shaft of an underground scraper according to claim 1, characterized in that: The adjustable height support frame also includes locking wheels, which are two in number and are installed at the bottom end of the cavity rod.

3. The special tool for removing the pin shaft of an underground scraper according to claim 1, characterized in that: The pulling hammer is a linear bearing pulling hammer.

4. The special tool for removing the pin shaft of an underground scraper according to claim 1, characterized in that: Both sides of the pulling hammer are provided with lifting rings.

Images