CN219092312U

CN219092312U - Wear-resistant jaw plate of jaw crusher

Info

Publication number: CN219092312U
Application number: CN202223218277.0U
Authority: CN
Inventors: 杨柳; 杨超; 杨贵军; 张海顺; 赵彬江; 张玉龙; 张青娥
Original assignee: Henan Hongfu Environmental Protection Technology Co ltd
Current assignee: Henan Hongfu Environmental Protection Technology Co ltd
Priority date: 2022-12-02
Filing date: 2022-12-02
Publication date: 2023-05-30
Anticipated expiration: 2032-12-02

Abstract

The utility model discloses a wear-resistant jaw plate of a jaw crusher, which relates to the technical field of crushing equipment and comprises a static jaw plate and a movable jaw plate, and further comprises a buffer mechanism, wherein the surfaces of the static jaw plate and the movable jaw plate are provided with a plurality of groups of racks, the racks are provided with a plurality of dentate bulges, and the occlusion surfaces of the dentate bulges are arc-shaped; the buffering mechanism comprises a sliding groove, an upper buffering piece and a lower buffering piece, wherein an upper top plate and a lower top plate are respectively arranged at two ends of the sliding groove, the sliding groove is arranged on the inner wall of the jaw crusher, the static jaw plate slides along the sliding groove, the upper buffering piece is arranged between the static jaw plate and the upper top plate, and the lower buffering piece is arranged between the static jaw plate and the lower top plate. According to the jaw crusher, the toothed protrusions of the arc-shaped occlusal surfaces are arranged on the jaw plates, so that friction between materials and the jaw plates is reduced, and the buffer mechanism is arranged, so that the static jaw plates are allowed to move up and down under the action of friction force, dynamic friction is reduced, and the problem that the jaw plates of the jaw crusher need to be replaced frequently is solved.

Description

Wear-resistant jaw plate of jaw crusher

Technical Field

The utility model relates to the technical field of crushing equipment, in particular to a wear-resistant jaw plate of a jaw crusher.

Background

The jaw crusher is mainly used for crushing various ores and other massive materials, so that the size of the materials meets the requirements of further crushing or grinding processing. The main structure of the crushing chamber is a crushing chamber formed by a movable jaw plate and a static jaw plate, and the crushing chamber can simulate the movement of two jaws of animals so as to realize crushing treatment of materials.

The jaw crusher has the advantages that the movable jaw plate and the static jaw plate of the jaw crusher are in direct contact with materials, the materials are subjected to extremely large extrusion force to be crushed under the high-speed movement of the movable jaw plate, the crushed materials are discharged downwards, the movable jaw plate and the static jaw plate of the jaw crusher resist impact force and also resist huge friction force of the materials on the surface of the jaw plate, so that the jaw plate of the jaw crusher is frequently replaced due to abrasion, and the jaw crusher not only brings about larger maintenance cost, but also affects production progress.

The current research on the wear resistance of the jaw crusher is mainly aimed at improving the materials and production process of the jaw plate (also called a lining plate), such as Wang Qian and the like [1] researches the influence of quenching temperature and different element contents on the hardness and the wear resistance of the jaw plate, and the manufacturing method of the wear-resistant jaw crusher lining plate disclosed in CN108393469A adopts a gas protection pouring mode to improve pouring quality and reduce shrinkage porosity, and the method can prolong the service life of the jaw plate (lining plate) by more than 50%.

However, since the formulation and production process of materials such as high-strength steel are relatively more studied at present, it is relatively difficult to make a large breakthrough in the materials and production process, and thus the service life of the jaw plate is limited.

The prior art information:

[1] wang Qian, meng Hua, zheng Xiping, zhang Hongwei. Abrasion resistance study of jaw crusher liners [ J ]. Coal machinery 2016:44-46.

Disclosure of Invention

The utility model aims at: the jaw plate of the jaw crusher is difficult to wear in the use process compared with the original jaw plate, and has longer service life, so that the problem that the jaw plate of the jaw crusher needs to be replaced frequently is solved.

The technical scheme adopted by the utility model is as follows:

a wear-resistant jaw crusher jaw plate comprises a static jaw plate, a dynamic jaw plate and a buffer mechanism, wherein:

the surfaces of the static jaw plate and the movable jaw plate are provided with a plurality of groups of racks, the racks are provided with a plurality of tooth-shaped bulges, and the engaging surfaces of the tooth-shaped bulges are arc-shaped;

the buffering mechanism comprises a sliding groove, an upper buffering piece and a lower buffering piece, wherein an upper top plate and a lower top plate are respectively arranged at two ends of the sliding groove, the sliding groove is arranged on the inner wall of the jaw crusher, the static jaw plate slides along the sliding groove, the upper buffering piece is arranged between the static jaw plate and the upper top plate, and the lower buffering piece is arranged between the static jaw plate and the lower top plate.

Preferably, a plurality of guide rods are arranged in parallel between the upper top plate and the lower top plate, and penetrate through the static jaw plate, the upper buffer piece and the lower buffer piece.

Preferably, the static jaw plate and the lower buffer member are provided with a plurality of through holes, the cross sections of the guide rod and the through holes are the same, the upper buffer member is a spring, and the spring is sleeved on the guide rod.

Preferably, the lower buffer member is a pad made of an elastic material.

Preferably, the occlusal surface of the tooth-shaped protrusions is an arc surface, the radius of the arc surface is not more than 2cm, and the distance between adjacent tooth-shaped protrusions is not more than 5mm.

Preferably, a groove is arranged at the opening of the through hole at the upper end of the static jaw plate, and the lower end of the spring extends into the groove.

Preferably, the elastic material may be rubber, silica gel or latex.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

when the material follow-up jaw plate moves upwards, the meshing surface of the tooth-shaped bulge is an arc surface, so that rolling contact can be realized, and the original plane jaw plates are in sliding contact, so that friction between the material and the jaw plates is reduced;

the static jaw plate of the original jaw crusher cannot move along with the material, and sliding friction mainly occurs between the material and the static jaw plate, and the material can drive the static jaw plate to move upwards, so that the sliding friction between the material and the static jaw plate is converted into static friction, and in a static friction state, the material and the static jaw plate cannot slide, so that abrasion cannot occur;

the contact area between the arc surface and the material is smaller than that between the arc surface and the material and the pressure intensity of the contact point is larger, so that the toothed bulge in the utility model can more easily crush the bulk material, and the crushing efficiency is improved.

Drawings

Fig. 1 is a perspective view of the present utility model.

Fig. 2 is a front view of the stationary jaw plate.

Fig. 3 is a side view of the stationary jaw and the damping mechanism.

The marks in the figure: 100. a static jaw plate; 200. a swing jaw plate; 300. a buffer mechanism; 400. a rack; 101. a groove; 102. a guard board; 301. a chute; 302. an upper buffer member; 303. a lower buffer member; 304. an upper top plate; 305. a lower top plate; 306. a guide rod; 401. tooth-like projections.

Detailed Description

For the purpose of making apparent the objects, technical solutions and advantages of the present utility model, the present utility model will be further described in detail with reference to the accompanying drawings and examples, it being understood that the specific examples described herein are for the purpose of illustration only and are not intended to limit the present utility model.

The jaw crusher is characterized in that a movable jaw plate of the jaw crusher reciprocates in the crushing process, and the abrasion of the jaw plate of the crusher is mainly found in a lifting path of the movable jaw plate, wherein a material with a size larger than a discharging size in the path lifts along with the movable jaw plate, and the surface of the jaw plate is a plane, so that the material and the surface of the jaw plate are subjected to sliding friction, scratches are generated, and scrap iron is mixed into the crushed material.

As shown in fig. 1-3, this embodiment provides a wear-resistant jaw crusher jaw plate for replace the jaw plate installed on the existing jaw crusher, so as to solve the problem that the jaw plate is easy to wear and needs to be replaced frequently, the wear-resistant jaw crusher jaw plate includes a static jaw plate 100 and a dynamic jaw plate 200, and further includes a buffer mechanism 300, the surfaces of the static jaw plate 100 and the dynamic jaw plate 200 are provided with a plurality of groups of racks 400, the racks 400 are arranged at equal intervals, each rack 400 is provided with a plurality of tooth-shaped protrusions 401, the engagement surfaces of the tooth-shaped protrusions 401 are arc-shaped, the stress area of the materials when the materials are contacted with the tooth-shaped protrusions 401 can be reduced as much as possible by adopting the arc-shaped surfaces, the pressure of the materials is greatly increased under the same extrusion force, so that the materials are crushed more easily, more small materials conforming to the discharge size can be obtained in the crushing process, and the proportion of the large materials generated by crushing is reduced.

The occlusal surface of the tooth-shaped protrusions 401 is an arc surface, the radius of the arc surface is not more than 2cm, and the distance between adjacent tooth-shaped protrusions 401 is not more than 5mm.

The buffer mechanism 300 comprises a chute 301, an upper buffer member 302 and a lower buffer member 303, wherein an upper top plate 304 and a lower top plate 305 are respectively arranged at two ends of the chute 301, the chute 301 is arranged on the inner wall of the jaw crusher, the static jaw plate 100 slides along the chute 301, the upper buffer member 302 is arranged between the static jaw plate 100 and the upper top plate 304, and the lower buffer member 303 is arranged between the static jaw plate 100 and the lower top plate 305.

A plurality of guide rods 306 are arranged in parallel between the upper top plate 304 and the lower top plate 305, in this embodiment, the number of the guide rods 306 is 3, and the guide rods 306 are equidistantly arranged, and penetrate through the stationary jaw plate 100, the upper buffer member 302 and the lower buffer member 303.

The static jaw plate 100 and the lower buffer member 303 are provided with a plurality of through holes, the cross section shapes of the guide rod 306 and the through holes are the same, the upper buffer member 302 is a spring, the spring is sleeved on the guide rod 306, the opening of the through hole at the upper end of the static jaw plate 100 is provided with a groove 101, and the lower end of the spring extends into the groove 101.

Considering that the upper end of the static jaw plate 100 is not in contact with the material, and the lower end is close to the discharge port of the jaw crusher and is in contact with the material, the lower space between the static jaw plate 100 and the movable jaw plate 200 needs to be fully utilized, so the lower buffer member 303 is a gasket made of an elastic material, which can be rubber, silica gel or latex, or other materials with good elasticity, so as to reduce the space occupied by the lower buffer member 303; meanwhile, in order to prevent the static jaw plate 100 from moving upwards and separating from the contact with the lower buffer member 303, material scraps enter the space between the static jaw plate 100 and the lower buffer member, the guard plate 102 is arranged at the lower end of the static jaw plate 100, so that the space between the static jaw plate 100 and the lower buffer member 303 can be shielded in the whole moving process of the static jaw plate 100, and the material scraps are prevented from entering.

By adopting the measures, when the material follow-up jaw 200 moves upwards, the meshing surface of the toothed protrusion 401 is an arc surface, rolling contact can occur, and the original plane jaw is in sliding contact, so that friction between the material and the jaw is reduced, meanwhile, the original jaw crusher static jaw cannot move along with the material, sliding friction mainly occurs between the material and the static jaw, the material can drive the static jaw 100 to move upwards in the embodiment, the sliding friction between the material and the static jaw 100 is converted into static friction, and in the static friction state, no sliding occurs between the material and the static jaw 100, so that abrasion cannot occur.

After the transformation, the service lives of the jaw plates of the jaw crusher adopting the new jaw plate are obviously prolonged, the average service lives of the static jaw plate 100 and the movable jaw plate 200 are respectively prolonged from original 4 months and 7 months to 9 months and 10 months, the service life of the static jaw plate 100 is prolonged by more than 1 time, and the service life of the movable jaw plate 200 is obviously prolonged.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. A wear-resistant jaw crusher jaw, comprising a stationary jaw (100), a movable jaw (200), characterized by further comprising a damping mechanism (300), wherein:

the surface of the static jaw plate (100) and the surface of the movable jaw plate (200) are provided with a plurality of groups of racks (400), the racks (400) are provided with a plurality of tooth-shaped bulges (401), and the occlusion surfaces of the tooth-shaped bulges (401) are arc-shaped;

the buffering mechanism (300) comprises a sliding groove (301), an upper buffering piece (302) and a lower buffering piece (303), wherein an upper top plate (304) and a lower top plate (305) are respectively arranged at two ends of the sliding groove (301), the sliding groove (301) is arranged on the inner wall of the jaw crusher, the static jaw plate (100) slides along the sliding groove (301), an upper buffering piece (302) is arranged between the static jaw plate (100) and the upper top plate (304), and a lower buffering piece (303) is arranged between the static jaw plate (100) and the lower top plate (305).

2. The jaw plate of the abrasion-resistant jaw crusher according to claim 1, wherein a plurality of guide rods (306) are arranged in parallel between the upper top plate (304) and the lower top plate (305), and the guide rods (306) penetrate through the stationary jaw plate (100), the upper buffer member (302) and the lower buffer member (303).

3. The jaw plate of the abrasion-resistant jaw crusher according to claim 2, wherein a plurality of through holes are formed in the static jaw plate (100) and the lower buffer member (303), the cross section shapes of the guide rod (306) and the through holes are the same, and the upper buffer member (302) is a spring, and the spring is sleeved on the guide rod (306).

4. A wear-resistant jaw crusher jaw as claimed in any one of claims 1-3, characterized in that said lower cushioning member (303) is a gasket made of an elastic material.

5. A jaw plate of a wear-resistant jaw crusher according to any one of claims 1-3, characterized in that the engagement surface of the toothed protrusions (401) is an arc surface, the radius of the arc surface is not more than 2cm, and the distance between adjacent toothed protrusions (401) is not more than 5mm.

6. A jaw plate for a wear-resistant jaw crusher according to claim 3, characterized in that the opening of the through hole in the upper end of the stationary jaw plate (100) is provided with a recess (101), and the lower end of the spring extends into the recess (101).

7. A wear resistant jaw crusher jaw as claimed in claim 4, wherein said resilient material is rubber, silicone or latex.