Jaw plate structure of a jaw crusher

Abstract

The utility model belongs to jaw plate technical field especially is a kind of jaw plate structure of jaw crusher, including jaw plate main body, toothed plate body and limit rod, jaw plate main body one end is equipped with several installation grooves, the toothed plate body is engaged in installation groove, the toothed plate body top is equipped with locating bolt;The limit rod is covered in the upper part of toothed plate body, both ends in the limit rod are equipped with fixed bolt, the limit rod one end is fixed with limit block, limit block and toothed plate body one to one correspond;The modular design of the present application, the overall jaw plate is decomposed into the toothed plate body and main body that can be independently replaced, when local wear, only need to replace single or several worn toothed plate body, still can use jaw plate main body without being discarded, replacement operation only needs to be completed by disassembling limit rod and single locating bolt, it is simple and quick to operate, compared with the traditional way of overall hoisting replacement jaw plate, downtime is greatly shortened, to effectively improve the operation rate and production efficiency of crusher.

Description

Technical Field

[0001] This utility model belongs to the field of jaw plate technology, specifically relating to a jaw plate structure for a jaw crusher. Background Technology

[0002] Jaw crushers, also known as jaw breakers or tiger's mouth crushers, consist of a crushing chamber formed by two jaw plates: a moving jaw and a stationary jaw. They mimic the jaw movements of an animal to crush materials. Widely used in mining, metallurgy, building materials, highway, railway, water conservancy, and chemical industries for crushing various ores and large materials, jaw crushers are prevalent in these sectors. However, the jaw plates, being critical wear parts, often fail due to localized wear.

[0003] Existing jaw plates mostly adopt an integral structure, which cannot be disassembled and is difficult to replace locally. When a part of the tooth plate wears, the entire jaw plate needs to be replaced, resulting in material waste, increased costs, and long downtime. To address this, we propose a jaw plate structure for jaw crushers that facilitates quick replacement of locally worn tooth plates, thereby improving equipment utilization and reducing maintenance costs. Utility Model Content

[0004] To address the problems mentioned in the background art, where existing jaw plates mostly adopt an integral structure that is not detachable and difficult to replace locally, requiring the replacement of the entire jaw plate when a part of the jaw plate wears, resulting in material waste, increased costs, and long downtime, this utility model provides a jaw plate structure for a jaw crusher.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a jaw plate structure for a jaw crusher, comprising a jaw plate body, a toothed plate body, and a limiting rod, wherein a plurality of mounting grooves are provided at one end of the jaw plate body, the toothed plate body is engaged in the mounting grooves, and a positioning bolt is provided on the top of the toothed plate body;

[0006] The toothed plate is covered with a limiting rod, and both ends of the limiting rod are equipped with fixing bolts. One end of the limiting rod is fixed with a limiting block, and the limiting block corresponds one-to-one with the toothed plate.

[0007] As a preferred embodiment of the jaw plate structure of the jaw crusher of this utility model, a positioning block is fixed at one end of the mounting groove, and a positioning groove is provided on the jaw plate body corresponding to the position of the positioning block.

[0008] In a preferred embodiment of the jaw plate structure of a jaw crusher according to this utility model, the tooth plate body is connected and fixed to the jaw plate body by the positioning bolts.

[0009] As a preferred embodiment of the jaw plate structure of the jaw crusher of this utility model, a plurality of docking blocks are fixed on the lower end face of the limiting rod, and docking grooves are opened on the tooth plate body corresponding to the positions of the docking blocks.

[0010] As a preferred embodiment of the jaw plate structure of a jaw crusher according to this utility model, the docking block and the docking groove are wedge-shaped structures to enhance the stability of the jaw plate body.

[0011] In a preferred embodiment of the jaw plate structure of a jaw crusher according to this utility model, the limiting block is located above the head of the positioning bolt and is used to limit the displacement of the positioning bolt.

[0012] As a preferred embodiment of the jaw plate structure of the jaw crusher of this utility model, one end of the jaw plate body is provided with an anti-wear end face.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: Through modular design, the overall jaw plate is disassembled into independently replaceable tooth plate bodies and main body. When local wear occurs, only one or several worn tooth plate bodies need to be replaced, without discarding the still usable jaw plate main body. The replacement operation can be completed by simply disassembling the limiting rod and a single positioning bolt. The operation is simple and quick. Compared with the traditional method of replacing the jaw plate as a whole by hoisting, the downtime is greatly shortened, thereby effectively improving the operating rate and production efficiency of the crusher. It also prevents the problem that existing jaw plates mostly adopt an integral structure, which cannot be disassembled and is difficult to replace locally. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the connection structure between the jaw plate body and the tooth plate body of this utility model;

[0017] Figure 3 This is a schematic diagram of the separation structure of the jaw plate body and the tooth plate body of this utility model;

[0018] Figure 4 This is a schematic diagram of the toothed plate and the mating block in this utility model.

[0019] In the diagram: 1. Jaw plate body; 2. Tooth plate body; 3. Mounting groove; 4. Positioning bolt; 5. Positioning block; 6. Positioning groove; 7. Limiting rod; 8. Fixing bolt; 9. Limiting block; 10. Connecting groove; 11. Connecting block; 12. Anti-wear end face. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1

[0022] like Figures 1-4 As shown;

[0023] A jaw plate structure for a jaw crusher includes a jaw plate body 1, a toothed plate body 2, and a limiting rod 7. A plurality of mounting grooves 3 are opened at one end of the jaw plate body 1, and the toothed plate body 2 is engaged in the mounting grooves 3. A positioning bolt 4 passes through the top of the toothed plate body 2. The limiting rod 7 covers the toothed plate body 2. Fixing bolts 8 are installed at both ends of the limiting rod 7. A limiting block 9 is fixed at one end of the limiting rod 7, and the limiting block 9 corresponds one-to-one with the toothed plate body 2.

[0024] In this implementation plan, the overall jaw plate is disassembled into independently replaceable tooth plate body 2 and main body 1 through modular design. When local wear occurs, only one or a few worn tooth plate bodies 2 need to be replaced, without discarding the still usable jaw plate main body. The replacement operation can be completed by simply removing the limit rod 7 and a single positioning bolt 4. The operation is simple and quick. Compared with the traditional method of replacing the jaw plate as a whole by hoisting, the downtime is greatly shortened, thereby effectively improving the operating rate and production efficiency of the crusher.

[0025] In an optional embodiment, a positioning block 5 is fixed at one end of the mounting groove 3, and a positioning groove 6 is provided on the toothed plate body 2 at the position corresponding to the positioning block 5.

[0026] In this implementation plan: the precise cooperation between the positioning block 5 and the positioning groove 6 provides a fast and accurate radial positioning for the installation of the toothed plate body 2, ensuring that multiple toothed plate bodies 2 can be accurately aligned, forming a flat crushing working surface after installation. This avoids the problem of local stress concentration or decreased crushing efficiency caused by misalignment during installation, and greatly simplifies the installation process.

[0027] In an optional embodiment, the tooth plate body 2 is connected and fixed to the jaw plate body 1 by positioning bolts 4.

[0028] In this implementation scheme, positioning bolts 4 are used for connection, providing a simple, reliable and detachable fixing method. This ensures the connection strength between the toothed plate body 2 and the jaw plate body 1, and can withstand huge crushing impact forces. Moreover, when replacement is required, only the bolts need to be removed, realizing modular and quick assembly and disassembly of the toothed plate body 2, making maintenance extremely convenient.

[0029] In an optional embodiment, a plurality of mating blocks 11 are fixed on the lower end face of the limiting rod 7, and mating grooves 10 are opened on the toothed plate body 2 at the positions corresponding to the mating blocks 11. The mating blocks 11 and the mating grooves 10 are wedge-shaped structures to enhance the stability of the toothed plate body 2.

[0030] In this embodiment, the limiting rod 7 is inserted into the docking groove 10 of the toothed plate body 2 through the docking block 11 on it, forming a vertical insertion locking mechanism, which further presses and restricts the toothed plate body 2 from above, enhances the overall stability of the toothed plate body 2 in the working state, and prevents it from tilting or shifting due to vibration or force.

[0031] In an optional embodiment, the limiting block 9 is located above the head of the positioning bolt 4 to limit the displacement of the positioning bolt 4.

[0032] In this implementation plan: the mating block 11 and the mating groove 10 are designed as wedge-shaped structures. The principle of inclined plane self-locking can be used. During the process of the limiting rod 7 being pressed by the fixing bolt 8, the wedge-shaped mating surface will generate increasingly greater friction, thereby greatly enhancing the locking force on the toothed plate body 2. The limiting block 9 is directly located above the head of the positioning bolt 4, forming a physical defense mechanism against loosening.

[0033] In an optional embodiment, one end of the toothed plate body 2 is provided with an anti-wear end face 12, which effectively prevents the positioning bolt 4 from rotating and loosening under long-term severe vibration of the equipment, and completely eliminates the risk of the toothed plate body 2 failing to fix due to bolt loosening.

[0034] In this embodiment, a wear-resistant end face 12 is provided at the end of the toothed plate body 2, which directly enhances the wear resistance of its most wear-prone parts.

[0035] Working principle:

[0036] For initial installation, multiple toothed plates 2 are respectively inserted into the mounting grooves 3 of the jaw plate body 1. Initial positioning is achieved through the cooperation of the positioning block 5 and the positioning groove 6. Then, the positioning bolt 4 is passed through the hole above the toothed plate 2 and screwed into the jaw plate body 1 to make the toothed plate 2 and the jaw plate body 1 tightly connected.

[0037] Install the limiting mechanism, cover the tooth plate body 2 with the limiting rod 7, and insert the docking block 11 at its lower end into the docking groove 10 of the tooth plate body 2 to further limit the displacement of the tooth plate body 2. Fix both ends of the limiting rod 7 to the jaw plate body 1 with the fixing bolts 8 to ensure the overall structural stability. The limiting block 9 at one end of the limiting rod 7 corresponds one-to-one with the tooth plate body 2 to block the head of the positioning bolt 4 and prevent it from loosening due to vibration.

[0038] For wear and replacement, when the wear-resistant end face 12 of a certain tooth plate body 2 is worn, it is only necessary to remove the fixing bolt 8, take off the limit rod 7, and then unscrew the positioning bolt 4 to replace the tooth plate body 2 separately, without replacing the entire jaw plate.

[0039] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A jaw plate structure for a jaw crusher, comprising a jaw plate body (1), a toothed plate body (2), and a limiting rod (7), characterized in that: The jaw plate body (1) has several mounting grooves (3) at one end, and a toothed plate body (2) is engaged in the mounting grooves (3). A positioning bolt (4) is provided on the top of the toothed plate body (2). The toothed plate body (2) is covered with a limiting rod (7), and both ends of the limiting rod (7) are equipped with fixing bolts (8). One end of the limiting rod (7) is fixed with a limiting block (9), and the limiting block (9) corresponds one-to-one with the toothed plate body (2).

2. The jaw plate structure of the jaw crusher according to claim 1, characterized in that: A positioning block (5) is fixed at one end of the mounting groove (3), and a positioning groove (6) is provided on the toothed plate body (2) corresponding to the position of the positioning block (5).

3. The jaw plate structure of the jaw crusher according to claim 1, characterized in that: The tooth plate body (2) is connected and fixed to the jaw plate body (1) by the positioning bolt (4).

4. The jaw plate structure of the jaw crusher according to claim 1, characterized in that: The lower end face of the limiting rod (7) is fixed with several docking blocks (11), and the toothed plate body (2) is provided with docking grooves (10) corresponding to the positions of the docking blocks (11).

5. The jaw plate structure of the jaw crusher according to claim 4, characterized in that: The docking block (11) and the docking groove (10) are wedge-shaped structures used to enhance the stability of the toothed plate body (2).

6. The jaw plate structure of the jaw crusher according to claim 1, characterized in that: The limiting block (9) is located above the head of the positioning bolt (4) and is used to limit the displacement of the positioning bolt (4).

7. The jaw plate structure of the jaw crusher according to claim 1, characterized in that: The toothed plate body (2) has a wear-resistant end face (12) at one end.

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