Jaw plate for jaw crusher
By designing a rotating shaft to drive the pressure plate and the hydraulic cylinder top column in a coordinated manner, the problems of material ejection and jamming caused by unreasonable jaw plate arrangement were solved, achieving efficient crushing and cost control.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-03-10
AI Technical Summary
The existing jaw plate arrangement is unreasonable, which leads to problems of material ejection and jamming, and the production cost is high. It is especially prone to jamming when crushing ores with high moisture content.
A jaw plate for a jaw crusher was designed. The rotating shaft drives the pressure plate to press down the ore, and the hydraulic cylinder and top column release the jamming. The movable jaw plate and the fixed jaw plate adopt a double swing motion, and the motor and hydraulic system work together.
It effectively prevents ore spillage, improves crushing efficiency, reduces production costs, prevents material jamming, and ensures stable operation of the crusher.
Smart Images

Figure CN223980532U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of crusher technology, specifically to a jaw plate for a jaw crusher. Background Technology
[0002] Jaw plates, also known as toothed plates, are named for the fact that the cross-section of their working part, which contacts the material being crushed, resembles the teeth of the upper and lower jaws in a mouth. Typically, a jaw crusher consists of two jaw plates: a fixed jaw plate mounted on the front wall of the machine body, and a movable jaw plate mounted on the movable jaw. The movable jaw plate and the fixed jaw plate form a crushing chamber that is larger at the top and smaller at the bottom.
[0003] The existing jaw plate teeth are arranged irrationally from top to bottom, which easily leads to problems such as material spillage during use. Furthermore, the production of jaw plates requires the manufacture of two jaw plates with different structures, increasing production costs. In addition, material is prone to jamming at the bottom of the jaw plate teeth during use. When ore with high moisture content enters the crushing chamber during the operation of the jaw crusher, the crusher will break the material containing moisture into small pieces. At this time, because the material contains moisture, it has a certain viscosity, and the crushed material is prone to getting stuck at the bottom of the teeth, causing jamming problems. Utility Model Content
[0004] In view of the deficiencies in the prior art, this utility model provides a solution to the existing problems.
[0005] This utility model is achieved through the following technical solution: a jaw plate for a jaw crusher, including a housing, a fixed jaw plate fixedly connected inside the housing, an mounting plate fixedly connected to the fixed jaw plate, a rotating shaft rotatably connected to the mounting plate, and several pressure plates fixedly connected to the rotating shaft; the housing has a square hole, and a sliding plate is slidably connected inside the square hole of the housing.
[0006] Preferably, a flywheel is rotatably connected inside the chassis, an eccentric shaft is fixedly connected to the flywheel, and a movable jaw plate is fixedly connected to the eccentric shaft.
[0007] Preferably, the mounting plate has several square holes, and the pressure plate can rotate with the rotating shaft; the rotating shaft is rotatably connected to the chassis, the chassis is fixedly connected to the positioning seat, the positioning seat is fixedly connected to the motor, the rotating shaft of the motor is fixedly connected to the second gear, the second gear meshes with the first gear, and the first gear is fixedly connected to the rotating shaft.
[0008] Preferably, a bracket is fixedly connected to the chassis, a hydraulic cylinder is fixedly connected to the bracket, one end of the piston rod of the hydraulic cylinder is fixedly connected to a slide plate, and several top columns are fixedly connected to the slide plate.
[0009] Preferably, the fixed jaw plate has several through holes, and the top post is slidably connected in the through holes of the fixed jaw plate; several plates are fixedly connected to the fixed jaw plate, and the top post is located between two plates.
[0010] The beneficial effects of this utility model are reflected in the following: by continuously rotating and pressing down the pressure plate, the stone material can be prevented from sliding upward and being ejected; at the bottom, by setting a top column between each plate tooth, the material stuck between the plate teeth can be pushed out through hydraulic control, thus preventing material jamming. Attached Figure Description
[0011] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0013] Figure 2 This is a schematic diagram of the internal structure of this utility model;
[0014] Figure 3 This is a schematic diagram of the left-side structure of this utility model;
[0015] Figure 4 This is a top view of the structure of this utility model.
[0016] In the attached diagram, 1 is the motor, 2 is the first gear, 3 is the chassis, 4 is the flywheel, 5 is the mounting plate, 6 is the pressure plate, 7 is the bracket, 8 is the hydraulic cylinder, 9 is the sliding plate, 10 is the movable jaw plate, 11 is the rotating shaft, 12 is the jaw teeth, 13 is the fixed jaw plate, 14 is the top column, 15 is the positioning seat, and 16 is the second gear. Detailed Implementation
[0017] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0018] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.
[0019] For ease of explanation, spatial relative terms such as “up,” “down,” “left,” and “right” may be used herein to describe the relationship of one element or feature shown in the figure relative to another element or feature. It should be understood that, in addition to the orientation shown in the figure, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, an element described as being “down” of other elements or features would be positioned “up” of those other elements or features. Therefore, the exemplary term “down” can encompass both up and down orientations.
[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0021] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific implementation of this utility model will be described in detail below with reference to specific embodiments: such as Figures 1-4 The present invention is achieved through the following technical solution: a jaw plate for a jaw crusher, including a housing 3, a fixed jaw plate 13 fixedly connected inside the housing 3, an mounting plate 5 fixedly connected to the fixed jaw plate 13, a rotating shaft 11 rotatably connected to the mounting plate 5, and several pressure plates 6 fixedly connected to the rotating shaft 11; a square hole is provided on the housing 3, and a sliding plate 9 is slidably connected inside the square hole of the housing 3.
[0022] Inside the chassis 3, a flywheel 4 is rotatably connected. An eccentric shaft is fixedly connected to the flywheel 4, and a movable jaw plate 10 is fixedly connected to the eccentric shaft.
[0023] The mounting plate 5 has several square holes, and the pressure plate 6 can rotate with the rotating shaft 11. The rotating shaft 11 is rotatably connected to the housing 3, the housing 3 is fixedly connected to the positioning seat 15, the positioning seat 1 is fixedly connected to the motor 1, the rotating shaft of the motor 1 is fixedly connected to the second gear 16, the second gear 16 meshes with the first gear 2, and the first gear 2 is fixedly connected to the rotating shaft 11.
[0024] A bracket 7 is fixedly connected to the chassis 3, a hydraulic cylinder 8 is fixedly connected to the bracket 7, one end of the piston rod of the hydraulic cylinder 8 is fixedly connected to the slide plate 9, and several top columns 14 are fixedly connected to the slide plate 9.
[0025] The fixed jaw plate 13 has several through holes, and the top post 14 is slidably connected in the through holes of the fixed jaw plate 13; several teeth 12 are fixedly connected to the fixed jaw plate 13, and the top post 14 is located between two teeth 12.
[0026] The working principle of this utility model is as follows: After the crusher is started, the movable jaw plate 10 makes a pendulum motion under the rotation of the flywheel 4 and the drive of the eccentric shaft. When the movable jaw plate 4 approaches the fixed jaw plate 13, the material is squeezed and crushed. After the large pieces of ore are put into the machine box 3, the motor 1 is started. The motor 1 drives the rotating shaft 11 to rotate, which in turn drives the pressure plate 6 to rotate with the rotating shaft 11. The ore is pressed down by the pressure plate 6 and will no longer be discharged upwards. The teeth 12 of the fixed jaw plate 13 are prone to jamming. The hydraulic cylinder 8 is started. The piston rod of the hydraulic cylinder 8 pushes the slide plate 9 forward, and the top column 14 pushes out the jammed material between the teeth 12, making the overall operation more efficient.
[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.
Claims
1. A jaw plate for a jaw crusher, comprising a machine box (3), a fixed jaw plate (13) fixedly connected in the machine box (3), a mounting plate (5) fixedly connected on the fixed jaw plate (13), a rotating shaft (11) rotatably connected on the mounting plate (5), and a plurality of pressing plates (6) fixedly connected on the rotating shaft (11); a square hole is formed in the machine box (3), and a sliding plate (9) is slidably connected in the square hole of the machine box (3).
2. A jaw plate for a jaw crusher as claimed in claim 1, characterised in that: A flywheel (4) is rotatably connected in the machine box (3), an eccentric shaft is fixedly connected on the flywheel (4), and a movable jaw plate (10) is fixedly connected on the eccentric shaft.
3. A jaw plate for a jaw crusher as claimed in claim 1, characterized in that: A plurality of square holes are formed in the mounting plate (5), and the pressing plates (6) can rotate with the rotating shaft (11); the rotating shaft (11) is rotatably connected with the machine box (3), a positioning seat (15) is fixedly connected on the machine box (3), a motor (1) is fixedly connected on the positioning seat (15), a second gear (16) is fixedly connected on a rotating shaft of the motor (1), the second gear (16) is meshingly connected with a first gear (2), and the first gear (2) is fixedly connected on the rotating shaft (11).
4. A jaw plate for a jaw crusher as claimed in claim 1, characterized in that: A support (7) is fixedly connected on the machine box (3), a hydraulic cylinder (8) is fixedly connected on the support (7), a piston rod of the hydraulic cylinder (8) is fixedly connected with the sliding plate (9), and a plurality of jacks (14) are fixedly connected on the sliding plate (9).
5. A jaw plate for a jaw crusher as claimed in claim 4, characterised in that: A plurality of through holes are formed in the fixed jaw plate (13), the jacks (14) are slidably connected in the through holes of the fixed jaw plate (13), a plurality of plate teeth (12) are fixedly connected on the fixed jaw plate (13), and the jacks (14) are located between two plate teeth (12).