Disassembling and assembling sleeve for main shaft lock nut of main motor rotor of dumper

Abstract

The utility model discloses a dismounting sleeve for a main motor rotor main shaft lock cap of a dumper, which belongs to the technical field of sleeves and comprises a sleeve body, the inner wall surface of the sleeve body is divided into a first contact surface and a second contact surface, and the second contact surface is positioned at one end of the first contact surface; first main teeth are arranged at the front end and the rear end of the first contact face, second main teeth are arranged at the upper end and the lower end of the first contact face, and the first main teeth and the second main teeth are connected with the inner wall face of the sleeve body. A hexagonal cap is arranged at one end of the sleeve body, and a square hole is formed in the hexagonal cap. The main shaft lock cap can be disassembled and assembled in a narrow space and is embedded with the main shaft lock cap, so that the main shaft lock cap is assembled or disassembled; and the stability during disassembly and assembly can be guaranteed, and the disassembly and assembly efficiency of the lock nut bolt is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sleeves, and in particular relates to a sleeve for disassembling and assembling a locking cap of a rotor main shaft of a main motor of a dump truck. Background Art

[0002] The statements in this section merely provide background technical information related to the present invention and do not necessarily constitute prior art.

[0003] Mining dump trucks are the main mining equipment in open-pit coal mines. The 1600kw main motor is the core structure of mining dump trucks and the main structure of energy supply for mining dump trucks. Whether the 1600kw main motor equipment is intact directly affects whether the mining dump truck can operate normally. Therefore, overhauling and maintaining the 1600kw main motor is a necessary process to ensure the normal operation of mining dump trucks. The overhaul and maintenance of the 1600kw main motor requires the disassembly of a large number of parts, many of which are inaccessible to traditional tools. Among them, the space at the rotor spindle lock cap is small, and general traditional tools cannot be assembled or removed. In addition, forced assembly or removal of accessories without suitable tools will create safety risks and may cause personal injury to maintenance personnel. Utility Model Content

[0004] In view of the above problems, the utility model provides a sleeve for disassembling and assembling the main shaft locking nut of the rotor of the main motor of a dump truck, which can be used to disassemble and assemble the main shaft locking nut in a narrow space and engage with the main shaft locking nut to achieve assembly or disassembly of the main shaft locking nut; it can also ensure stability during disassembly and assembly, and improve the disassembly and assembly efficiency of the locking nut bolt.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A sleeve for disassembling and assembling a locking cap of a rotor main shaft of a main motor of a dump truck comprises a sleeve body, wherein the inner wall surface of the sleeve body is divided into a first contact surface and a second contact surface, wherein the second contact surface is located at one end of the first contact surface; first main teeth are arranged at the front and rear ends of the first contact surface, and second main teeth are arranged at the upper and lower ends of the first contact surface, wherein the first main teeth and the second main teeth are connected to the inner wall surface of the sleeve body; a hexagonal cap is arranged at one end of the sleeve body, and a square hole is provided on the hexagonal cap.

[0007] Furthermore, a circular hole is provided on the side of the sleeve body, the circular hole penetrates the side wall of the sleeve body, and the circular hole is located at the position of the second contact surface.

[0008] Furthermore, the upper end surface of the first main tooth is the first main tooth main contact surface, and the side surface of the first main tooth is the first main tooth main contact surface.

[0009] Furthermore, the upper end surface of the second main tooth is a second main tooth main contact surface, and the side surface of the second main tooth is a second main tooth side contact surface.

[0010] Furthermore, the lengths of the first main tooth and the second main tooth are the same, and the lengths of the first main tooth and the second main tooth are smaller than the length of the sleeve body.

[0011] Furthermore, the first contact surface and the second contact surface are in close contact with the locking cap contact surface of the spindle locking cap.

[0012] Furthermore, the first main tooth is engaged with the first locking cap groove of the main shaft locking cap.

[0013] Furthermore, the first main tooth main contact surface of the first main tooth is in close contact with the first lock cap main contact surface of the first lock cap groove, and the first main tooth side contact surface of the first main tooth is in close contact with the first lock cap side contact surface of the first lock cap groove.

[0014] Furthermore, the second main tooth is engaged with the second lock cap groove of the main shaft lock cap.

[0015] Furthermore, the second main tooth main contact surface of the second main tooth is in close contact with the second lock cap main contact surface of the second lock cap groove, and the second main tooth side contact surface of the second main tooth is in close contact with the second lock cap side contact surface of the second lock cap groove.

[0016] Compared with the prior art, the utility model has the following advantages and positive effects:

[0017] The hexagonal cap of the disassembly sleeve of the utility model is connected to the sleeve body, and then connected to the kilogram spanner, and the main teeth are engaged with the lock cap groove of the spindle lock cap. The kilogram spanner is used to transmit force to the disassembly sleeve, and then the disassembly sleeve is transmitted to the spindle lock cap, generating longitudinal pressure to loosen or tighten the spindle lock cap, and finally realizing the disassembly and assembly of the spindle lock cap in a narrow space.

[0018] The first contact surface and the second contact surface of the sleeve body of the utility model are in close contact with the lock cap contact surface of the spindle lock cap, the first main tooth is engaged with the first lock cap groove, so that the surface of the first main tooth is in close contact with the surface of the first lock cap groove, and the second main tooth is engaged with the second lock cap groove, so that the surface of the second main tooth is in close contact with the surface of the second lock cap groove, that is, the disassembly sleeve is completely engaged with the spindle lock cap, thereby realizing the assembly or disassembly of the spindle lock cap, each contact surface is in close contact, will not deviate during rotation, is easy to bear force, ensures stability during disassembly and assembly, and improves the disassembly and assembly efficiency of the lock cap bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0020] Figure 1 It is a side sectional view of the main shaft lock cap disassembly sleeve of the utility model;

[0021] Figure 2 This is a front view of the main shaft lock cap disassembly sleeve of the utility model;

[0022] Figure 3 This is the front view of the spindle lock cap;

[0023] In the figure: 1. sleeve body; 11. first contact surface; 12. second contact surface; 13. round hole; 2. first main tooth; 21. main contact surface of first main tooth; 22. side contact surface of first main tooth; 3. second main tooth; 31. main contact surface of second main tooth; 32. side contact surface of second main tooth; 4. hexagonal cap; 41. square hole; 5. spindle locking cap; 51. locking cap contact surface; 52. first locking cap groove; 521. first locking cap main contact surface; 522. first locking cap side contact surface; 53. second locking cap groove; 531. second locking cap main contact surface; 532. second locking cap side contact surface. DETAILED DESCRIPTION

[0024] It should be noted that the following detailed descriptions are all exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0025] The following drawings are combined to explain the utility model in detail. The embodiment disclosed in this invention is a disassembly sleeve of the rotor spindle lock cap 5 of the main motor of a dump truck, such as Figure 1 As shown, it includes a sleeve body 1, the inner wall surface of the sleeve body 1 is divided into a first contact surface 11 and a second contact surface 12, and the second contact surface 12 is located at one end of the first contact surface 11; the first main teeth 2 are arranged at the front and rear ends of the first contact surface 11, and the second main teeth 3 are arranged at the upper and lower ends of the first contact surface 11, and the first main teeth 2 and the second main teeth 3 are connected to the inner wall surface of the sleeve body 1; a hexagonal cap 4 is arranged at one end of the sleeve body 1, and a square hole 41 is opened on the hexagonal cap 4.

[0026] The sleeve body 1 is a cylinder, and the interior of the cylinder is hollowed out. The hollow design can reduce the weight of the tool and improve the feasibility of operation. The inner diameter edge is inlaid with four rectangular main teeth, namely the first main tooth 2 and the second main tooth 3. The first main tooth 2 and the second main tooth 3 are the same size. The surface of the cylinder is designed with a symmetrical circular hole 13, and the center of the bottom is connected with a hexagonal cap 4, and the center of the hexagonal cap 4 is made into a square hole 41. The hexagonal cap 4 at the bottom of the cylinder is designed to be conveniently connected to the sleeve of the corresponding diameter, and then a kilogram wrench and other tools are used to apply longitudinal pressure to it. Disassembling the sleeve effectively reduces the labor intensity of the staff and prevents the safety hazards of the tools squeezing the hands and feet of the staff and colliding with the bodies of the people in the workplace during work. The investment in manpower and maintenance resources is greatly reduced, and only one or two people are needed to assist in the installation work to complete this type of maintenance work.

[0027] The sleeve body 1 is made of alloy steel because alloy steel has high strength, good plasticity and toughness, and good weldability. Due to its low carbon content and low content of alloy elements, it has good plasticity and low hardenability, and it is not easy to have quenching structure or cracks in the weld. Therefore, alloy steel can effectively ensure the strength of the disassembly sleeve.

[0028] A circular hole 13 is provided on the side of the sleeve body 1, and the circular hole 13 passes through the side wall of the sleeve body 1, and the circular hole 13 is located at the position of the second contact surface 12. When the spindle lock nut 5 is difficult to disassemble and loose, a long metal rod or a crowbar can be used to pass through the circular hole to apply force to loosen or tighten it.

[0029] The upper end face of the first main tooth 2 is the first main tooth main contact surface 21, and the side face of the first main tooth 2 is the first main tooth main contact surface 21. The upper end face of the second main tooth 3 is the second main tooth main contact surface 31, and the side face of the second main tooth 3 is the second main tooth side contact surface 32. The lengths of the first main tooth 2 and the second main tooth 3 are the same, and the lengths of the first main tooth 3 and the second main tooth 3 are less than the length of the sleeve body 1. The sizes of the first main tooth 2 and the second main tooth 3 match the sizes of the lock cap grooves of the spindle lock cap 5, so that the main teeth are engaged with the lock cap grooves, which is convenient for force bearing, ensures stability during disassembly and assembly, and improves the disassembly and assembly efficiency of the lock cap bolts.

[0030] The first contact surface 11 and the second contact surface 12 are in close contact with the locking cap contact surface 51 of the spindle locking cap 5. Figure 2 As shown, the first main tooth 2 is engaged with the first lock cap groove 52 of the main shaft lock cap 5. The second main tooth 3 is engaged with the second lock cap groove 53 of the main shaft lock cap 5. The first main tooth main contact surface 21 of the first main tooth 2 is in close contact with the first lock cap main contact surface 521 of the first lock cap groove 52, and the first main tooth side contact surface 22 of the first main tooth 2 is in close contact with the first lock cap side contact surface 522 of the first lock cap groove 52. The second main tooth main contact surface 31 of the second main tooth 3 is in close contact with the second lock cap main contact surface 531 of the second lock cap groove 53, and the second main tooth side contact surface 32 of the second main tooth 3 is in close contact with the second lock cap side contact surface 532 of the second lock cap groove 53.

[0031] like Figure 3 As shown, the first lock cap groove 52 and the second lock cap groove 53 are arranged on the circumference of the spindle lock cap 5. The first lock cap groove 52 and the second lock cap groove 53 have the same size and are both square grooves. The first lock cap groove 52 has a first lock cap main contact surface 521 and a first lock cap side contact surface 522, and the second lock cap groove 53 has a second lock cap main contact surface 531 and a second lock cap side contact surface 532.

[0032] The first contact surface 11 and the second contact surface 12 are in close contact with the lock cap contact surface 51 of the spindle lock cap 5; the first main tooth main contact surface 21 is in close contact with the first lock cap main contact surface 521, and the first main tooth 2 has two first main tooth side contact surfaces 22, and the two first main tooth side contact surfaces 22 are in close contact with the two first lock cap side contact surfaces 522; the second main tooth main contact surface 31 is in close contact with the second lock cap main contact surface 531, and the second main tooth 3 has two second main tooth side contact surfaces 32, and the two second main tooth side contact surfaces 32 are in close contact with the two second lock cap side contact surfaces 532; the contact surfaces are in close contact with each other, and finally the disassembly sleeve is completely engaged with the spindle lock cap 5, so that the spindle lock cap 5 can be assembled or disassembled, and no displacement will occur during rotation.

[0033] Although the above describes the specific implementation methods of the utility model in combination with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. A sleeve for disassembling and assembling the lock cap of the rotor main shaft of the main motor of a dump truck, characterized in that: It includes a sleeve body, the inner wall surface of the sleeve body is divided into a first contact surface and a second contact surface, the second contact surface is at one end of the first contact surface; first main teeth are arranged at the front and rear ends of the first contact surface, second main teeth are arranged at the upper and lower ends of the first contact surface, the first main teeth and the second main teeth are connected to the inner wall surface of the sleeve body; a hexagonal cap is arranged at one end of the sleeve body, and a square hole is provided on the hexagonal cap.

2. A dump truck main motor rotor main shaft lock cap disassembly sleeve as claimed in claim 1, characterized in that: A circular hole is arranged on the side of the sleeve body, the circular hole penetrates the side wall of the sleeve body, and the circular hole is located at the position of the second contact surface.

3. A dump truck main motor rotor main shaft lock cap disassembly sleeve as claimed in claim 1, characterized in that: The upper end surface of the first main tooth is the first main tooth main contact surface, and the side surface of the first main tooth is the first main tooth main contact surface.

4. A dump truck main motor rotor main shaft lock cap disassembly sleeve as claimed in claim 1, characterized in that: The upper end surface of the second main tooth is a second main tooth main contact surface, and the side surface of the second main tooth is a second main tooth side contact surface.

5. A dump truck main motor rotor main shaft lock cap disassembly sleeve as claimed in claim 1, characterized in that: The first main tooth and the second main tooth have the same length, and the lengths of the first main tooth and the second main tooth are smaller than the length of the sleeve body.

6. A dump truck main motor rotor main shaft lock cap disassembly sleeve as claimed in claim 1, characterized in that: The first contact surface and the second contact surface are in close contact with the locking cap contact surface of the spindle locking cap.

7. A dump truck main motor rotor main shaft lock nut disassembly sleeve as claimed in claim 1, characterized in that: The first main tooth is engaged with the first locking cap groove of the main shaft locking cap.

8. A dump truck main motor rotor main shaft lock cap disassembly sleeve as claimed in claim 7, characterized in that: The first main tooth main contact surface of the first main tooth is in close contact with the first lock cap main contact surface of the first lock cap groove, and the first main tooth side contact surface of the first main tooth is in close contact with the first lock cap side contact surface of the first lock cap groove.

9. A dump truck main motor rotor main shaft lock nut disassembly sleeve as claimed in claim 1, characterized in that: The second main tooth is engaged with the second lock cap groove of the main shaft lock cap.

10. A dump truck main motor rotor main shaft lock cap disassembly sleeve as claimed in claim 9, characterized in that: The second main tooth main contact surface of the second main tooth is in close contact with the second lock cap main contact surface of the second lock cap groove, and the second main tooth side contact surface of the second main tooth is in close contact with the second lock cap side contact surface of the second lock cap groove.

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