CN217392593U

CN217392593U - Crushing shaft group

Info

Publication number: CN217392593U
Application number: CN202220755432.3U
Authority: CN
Inventors: 辛同帅; 李平辉; 张庆中; 刘照辉; 郑少全; 张翅; 吴雅明
Original assignee: Zhengzhou Coal Mining Machinery Longwall Equipment Co ltd
Current assignee: Zhengzhou Coal Mining Machinery Longwall Equipment Co ltd
Priority date: 2022-04-02
Filing date: 2022-04-02
Publication date: 2022-09-09
Anticipated expiration: 2032-04-02

Abstract

The utility model belongs to the technical field of the breaker, concretely relates to broken axle group. Compared with the prior art, the utility model discloses set up the broken tool bit of avris in the outside of the broken tool bit in both ends, hydraulic bolt fixed's broken tool bit is passed through in broken pivot, the outside sets up the broken tool bit of avris for setting up the side auxiliary block in the outside of the broken tool bit in both ends, the high hard wear-resisting piece of side auxiliary block end fixing, the side auxiliary block constitutes the broken tool bit of side with high hard wear-resisting piece, the material that high hard wear-resisting piece adopted is wear-resisting welding wire DH55-F, utilize hydraulic bolt to replace ordinary bolt, hydraulic bolt still can keep bolt-up power under the vibrations condition, guarantee that broken sword tooth is still not hard up when broken big piece hard coal, effectual improvement broken sword tooth life-span, in addition set up in the outside of the broken tool bit in both ends and constitute the broken tool bit of side by side auxiliary block and high hard wear-resisting piece, supplementary broken side lump coal, improve broken lump coal effect.

Description

Crushing shaft group

Technical Field

The utility model belongs to the technical field of the breaker, concretely relates to be a broken axle group.

Background

The crusher can be classified into a medical crusher and a mining crusher according to the major categories, the mining crusher mainly performs crushing operation on various stones, and the crushers are classified into a plurality of models according to different crushing principles and different product particle sizes. The crusher is widely applied to various departments such as mines, smelting, building materials, highways, railways, water conservancy, chemical industry and the like. Common crushing machines include jaw crushers, impact crushers, vertical impact crushers, hydraulic cone crushers, ring hammer crushers, roll crushers, combined crushers, cone crushers, twin-stage crushers, gyratory crushers, mobile crushers, and the like.

The broken axle of current breaker group both sides limit can not assist broken side lump coal, and broken axle group is mostly through the broken tool bit of bolt fastening moreover, can not keep the fastening force of bolt under the vibrations condition, and broken sword tooth is not hard up easily when broken bold hard coal.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is that broken side lump coal can not be assisted on broken axle group both sides limit of current breaker, and broken axle group is most through the broken tool bit of bolt fastening moreover, can not keep the fastening force of bolt under the vibrations condition, and broken sword tooth is not hard up easily when broken bold hard coal, for solving above-mentioned problem, the utility model provides a broken axle group.

The purpose of the utility model is realized with the following mode: the utility model provides a broken axle group, includes the broken tool bit of fixing in the broken pivot, sets up the broken tool bit of avris in the outside of the broken tool bit of both ends, and broken pivot passes through the broken tool bit of hydraulic bolt fixing.

The outside sets up the broken tool bit of avris for setting up the side auxiliary block in the outside of the broken tool bit in both ends, the wear-resisting piece of the side auxiliary block end fixing height hardness, the side auxiliary block constitutes the broken tool bit of side with the wear-resisting piece of height hardness.

The high-hardness wear-resistant block is made of a wear-resistant welding wire DH 55-F.

Compared with the prior art, the utility model discloses set up the avris broken tool bit in the outside of both ends broken tool bit, broken pivot passes through the broken tool bit of hydraulic bolt fixed, the outside sets up the broken tool bit of avris for setting up the side auxiliary block in the outside of both ends broken tool bit, the end fixing of side auxiliary block is high hard wear-resisting piece, side auxiliary block and high hard wear-resisting piece constitute the broken tool bit of side, the material that high hard wear-resisting piece adopted is wear-resisting welding wire DH55-F, utilize hydraulic bolt to replace ordinary bolt, hydraulic bolt still can keep the bolt fastening force under the vibrations condition, guarantee that broken cutter tooth still does not become flexible when broken big piece hard coal, the effectual broken cutter tooth life-span that improves, in addition set up the broken tool bit of side by side auxiliary block and high hard wear-resisting piece outside the broken tool bit of both ends, assist broken side lump coal, improve broken lump coal effect, it can not assist broken side lump coal to solve current breaker broken shaft group both sides limit, and most crushing shaft groups are used for fixing crushing cutter heads through bolts, the fastening force of the bolts cannot be kept under the vibration condition, and the crushing cutter teeth are easy to loosen when large hard coal is crushed.

Drawings

Fig. 1 is a schematic view of a crushing shaft set.

Wherein, 1 broken pivot, 2 broken tool bits, 3 hydraulic bolt, 4 side auxiliary blocks, 5 high hard wear-resisting blocks.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

According to the broken axle group that fig. 1 shows, including the broken tool bit 2 of fixing on the broken pivot 1, set up the broken tool bit of avris in the outside of the broken tool bit 2 in both ends, broken pivot 1 passes through the broken tool bit 2 that hydraulic bolt 3 is fixed, hydraulic bolt 3 utilizes a toper structure under the effect of axial tension, make bolt and taper sleeve produce interference fit in the screw, eliminate the screw clearance completely, reach accurate positioning, the possibility that hydraulic bolt 3 damaged is very little, this is because the initial value of the clearance of taper sleeve and shaft coupling screw reaches 0.08 ~ 0.10mm, it is very light to penetrate the screw. After expansion interference, each bolt bears uniform load and is not easy to be subjected to overlarge shearing force. Even after long-term operation, the paint can not be greatly damaged. When the taper is removed, the taper is arranged on the bolt, the taper is easy to withdraw, then the taper sleeve shrinks to restore to the initial gap value, and the taper sleeve can be taken out by loosening.

The outside sets up the broken tool bit of avris and sets up side auxiliary block 4 for the outside at the broken tool bit 2 in both ends, 4 end fixing high hard wear-resisting pieces 5 of side auxiliary block, and side auxiliary block 4 constitutes the broken tool bit 3 of side with high hard wear-resisting piece 5.

The outer surface of the high-hardness wear-resistant block 5 is made of a wear-resistant welding wire DH55-F, a large amount of large-scale special wear-resistant equipment such as crusher rollers, lining plates, coal mill roller sleeves, grinding balls, hoppers, vertical grinding rollers, grinding discs and the like are used in the industries such as mines, machinery, electric power and metallurgy, mechanical parts of the equipment have serious wear problems, the wear is one of the main reasons for mechanical failure, and modern mechanical equipment and parts thereof have higher and higher requirements on the wear resistance of materials in the using process, so that the surface of the equipment parts is modified, the wear resistance of the materials is improved or the failed materials are repaired, the service life of the equipment parts is prolonged, and the economic benefit is improved, thereby having great practical significance. The wear-resistant surfacing welding is an economic and rapid process method for modifying the surface of a material, can effectively change the wear resistance, corrosion resistance and other mechanical properties of the surface of the material, has obvious effects of prolonging the service life of parts, reasonably using the material, improving the product performance and reducing the cost, and is more and more widely applied to the manufacturing and repairing of mechanical parts. The wear-resistant surfacing technology mainly adopts a wear-resistant welding wire to perform surfacing on the surface of a workpiece, so that a layer of wear-resistant layer covers the material surface of a mechanical part, the service life is prolonged, the wear-resistant welding wire DH55-F is adopted to perform surfacing on the surface of a casting ZG42CrMo to form a high-hardness wear-resistant block 5, the casting ZG42CrMo is arranged inside the high-hardness wear-resistant block 5, the hardening and tempering hardness HB 240-280 of the casting ZG42CrMo is adopted, the surface of the high-hardness wear-resistant block 5 is a wear-resistant welding wire DH55-F, or the wear-resistant welding wire DH55-F is adopted to perform surfacing on the surface of the side auxiliary block 4 in the direction of broken hard coal to form the high-hardness wear-resistant layer.

The working process of the utility model is as follows: replacing common bolts with hydraulic bolts 3, installing crushing tool bits 2 on a crushing rotating shaft 1 by using the hydraulic bolts 3, fixing side auxiliary blocks 4 on the outer sides of the crushing tool bits 2 at two ends respectively, and welding high-hardness wear-resistant blocks 5 on each side auxiliary block 4 along the direction of crushing hard coal to complete the assembly of the crushing shaft group.

While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the general inventive concept, and it is intended to cover all such changes and modifications as fall within the true spirit and scope of the invention.

Claims

1. The utility model provides a broken axle group, includes fixed broken tool bit (2) on broken pivot (1), its characterized in that sets up the broken tool bit of avris in the outside of the broken tool bit of both ends (2), broken pivot (1) is through fixed broken tool bit (2) of hydraulic bolt (3).

2. The crushing shaft group according to claim 1, wherein the outside side crushing cutter head is characterized in that the outside side crushing cutter head is provided with side auxiliary blocks (4) on the outside of the two end crushing cutter heads (2), the end parts of the side auxiliary blocks (4) are fixed with high-hardness wear-resistant blocks (5), and the side auxiliary blocks (4) and the high-hardness wear-resistant blocks (5) form the side crushing cutter head.

3. The crushing shaft group according to claim 2, characterized in that the high-hardness wear-resistant block (5) is made of a wear-resistant welding wire DH 55-F.