Limiting device used during assembly and disassembly of jaw crusher fixed jaw plate

Abstract

A limiting device used during assembly and disassembly of a jaw crusher fixed jaw plate (3), comprising limit tooling and a front frame (4) configured for mounting the fixed jaw plate (3), protrusions (31) fixedly disposed at respective edges of upper and lower ends of a back surface of the fixed jaw plate (3), and a mating cavity is formed between the two protrusions (31); a mating boss (41) adapted to the mating cavity is arranged on a front side surface of the front frame (4); the fixed jaw plate (3) is mated to the mating boss (41) of the front frame (4) by means of the mating cavity; and the limit tooling is configured for continuously exerting a limiting force on the fixed jaw plate (3) to prevent the fixed jaw plate (3) from disengaging in a direction away from the front frame (4).

Description

A limiting device for disassembling and assembling the fixed jaw plate of a jaw crusher Technical Field

[0001] This utility model relates to the field of jaw crusher technology, specifically to a limiting device for disassembling and assembling the fixed jaw plate of a jaw crusher. Background Technology

[0002] Jaw crushers consist of a moving jaw plate and a fixed jaw plate forming a crushing chamber for crushing materials. They are widely used in industries such as mining, metallurgy, building materials, highways, railways, water conservancy, and chemicals for crushing various ores and large materials. In some existing jaw crushers, the fixed jaw plate is mounted on the front frame and is secured by a side liner plate mounted on the side plate of the frame. However, when installing or replacing the fixed jaw plate, if the side liner plate is not yet installed, the fixed jaw plate is not pressed against the front frame and may detach and fall, posing a safety hazard to operators. Therefore, a simple, easy-to-use limiting device is needed for the installation and removal of the fixed jaw plate in jaw crushers. This device would limit and secure the fixed jaw plate, preventing accidental detachment and fall during installation and removal. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a limiting device for the fixed jaw plate of a jaw crusher, which can play a corresponding limiting and fixing role by setting a limiting tool and cooperating with the front frame, thereby preventing the fixed jaw plate from accidentally detaching from the front frame and falling off during the disassembly and assembly process. The device is simple in structure and easy to use.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A limiting device for disassembling and assembling a fixed jaw plate of a jaw crusher includes a limiting fixture and a front frame for installing the fixed jaw plate. Protrusions are fixedly provided at the upper and lower edges of the back of the fixed jaw plate, and a fitting cavity is formed between the two protrusions. The front surface of the front frame is provided with a fitting boss that is adapted to the fitting cavity. The fixed jaw plate is fitted into the fitting boss of the front frame through the fitting cavity. The limiting fixture is used to apply a limiting force to the fixed jaw plate to prevent it from disengaging away from the front frame.

[0005] Furthermore, the limiting fixture includes a first limiting fixture, which is located between the front frame and the fixed jaw plate.

[0006] Furthermore, the first limiting fixture includes a T-bolt and at least one nut. The T-bolt includes a screw and a strip-shaped locking block fixed at one end of the screw. The front frame is provided with a first through hole, and the back of the fixed jaw plate is provided with at least one mounting groove. Two symmetrically arranged stops are fixed on the inner surface of the mounting groove near the opening. The end of the screw with the strip-shaped locking block can pass through the first through hole and extend into the mounting groove. After rotating 90 degrees, the strip-shaped locking block can be locked inside the two stops. The other end of the screw is threaded with a nut.

[0007] Furthermore, the first limiting fixture also includes a pad with a round hole. The pad is fitted onto the screw through the round hole and is located between the nut and the front frame.

[0008] Furthermore, there are two nuts.

[0009] Furthermore, there are two mounting slots, which are respectively located on the upper and lower sides of the back of the fixed jaw plate.

[0010] Furthermore, it also includes frame side plates, and the limiting fixture includes a second limiting fixture, of which there are two, and the two second limiting fixtures are respectively located between the two frame side plates and the fixed jaw plate.

[0011] Furthermore, the second limiting fixture includes a locking bolt, a mounting plate, and a limiting block. A second through hole is provided on the side plate of the frame. At least one limiting groove is provided on both the left and right surfaces of the fixed jaw plate. The mounting plate is fixedly mounted on one end of the limiting block. The other end of the limiting block can pass through the second through hole and be inserted into the limiting groove. The mounting plate is locked and fixed to the outer surface of the side plate of the frame by the locking bolt.

[0012] Furthermore, the cross-section of the limiting groove is wedge-shaped, and a first inclined surface is provided on the side of the limiting groove near the back of the fixed jaw plate, so that the width of the limiting groove gradually decreases from the outside to the inside. The other end of the limiting block is adapted to the limiting groove and is provided with a second inclined surface that abuts and cooperates with the first inclined surface.

[0013] Furthermore, two limiting grooves are provided on both the left and right sides of the fixed jaw plate, located on the upper and lower sides respectively.

[0014] As described above, the limiting device for disassembling and assembling the fixed jaw plate of a jaw crusher provided by this utility model has the following beneficial effects: By setting the limiting fixture, a limiting force is applied to the fixed jaw plate to prevent it from detaching away from the front frame, thus providing a corresponding limiting and fixing effect on the fixed jaw plate. This prevents the fixed jaw plate from accidentally detaching from the front frame and falling during the disassembly and assembly process, effectively ensuring the personal safety of the operator. During the actual disassembly and assembly of the fixed jaw plate, the first limiting fixture, the second limiting fixture, or the first limiting fixture can be selected as needed. Combined with the second limiting fixture, when the first limiting fixture is used, the locking nut is tightened until the pad is in contact with the front frame, so that the fixed jaw plate can be tightly pulled on the front frame from the rear side of the fixed jaw plate by T-bolts. When the second limiting fixture is used, the mounting plate is locked and fixed to the outer side of the frame side plate by locking bolts, so that the limiting block is stably locked in the limiting groove of the fixed jaw plate. In this way, the fixed jaw plate can be limited and fixed from the left and right sides of the jaw crusher respectively. Moreover, the overall structure of the first and second limiting fixtures is simple, easy to use, and low in manufacturing cost. Attached Figure Description

[0015] Figure 1 is a schematic diagram of a limiting device for disassembling and assembling the fixed jaw plate of a jaw crusher according to Embodiment 1 of this utility model.

[0016] Figure 2 is a magnified view of part A in Figure 1.

[0017] Figure 3 is a three-dimensional structural diagram of the first limiting fixture.

[0018] Figure 4 is a schematic diagram of a limiting device for disassembling and assembling the fixed jaw plate of a jaw crusher in Embodiment 2 of this utility model.

[0019] Figure 5 is a magnified view of part B in Figure 4.

[0020] Figure 6 is a three-dimensional structural diagram of the second limiting fixture.

[0021] Figure 7 is a schematic diagram of a partial structure of the jaw plate.

[0022] In the diagram: 1-First limiting fixture; 11-T-bolt; 111-Screw; 112-Strip-shaped clamping block; 12-Nut; 13-Wash plate; 2-Second limiting fixture; 21-Locking bolt; 22-Mounting plate; 23-Limiting block; 231-Second inclined surface; 3-Fixed jaw plate; 31-Protrusion; 32-Mounting groove; 33-Stop block; 34-Limiting groove; 341-First inclined surface; 4-Front frame; 41-Matching boss; 42-First through hole; 5-Frame side plate; 51-Second through hole. Detailed Implementation

[0023] The present invention will be further described below through specific embodiments. Example 1

[0024] As shown in Figures 1 to 3, the present invention provides a limiting device for disassembling and assembling a jaw crusher's fixed jaw plate, comprising a limiting fixture and a front frame 4 for installing the fixed jaw plate 3. The fixed jaw plate 3 has protrusions 31 fixedly provided at both the upper and lower edges of its back surface, forming a fitting cavity between the two protrusions 31. The front surface of the front frame 4 has a fitting boss 41 adapted to the fitting cavity. The fixed jaw plate 3 is fitted onto the fitting boss 41 of the front frame 4 through the fitting cavity. The limiting fixture applies a limiting force to the fixed jaw plate 3 to prevent it from detaching away from the front frame 4, thus providing a corresponding limiting and fixing effect. This prevents the fixed jaw plate 3 from accidentally detaching and falling from the front frame 4 during disassembly and assembly, effectively ensuring the safety of operators and avoiding damage to the equipment. Furthermore, it is easy and simple to use.

[0025] The limiting fixture includes a first limiting fixture 1, which is disposed between the front frame 4 and the fixed jaw plate 3. The first limiting fixture 1 includes a T-bolt 11 and at least one nut 12. The T-bolt 11 includes a screw 111 and a strip-shaped locking block 112 fixedly disposed at one end of the screw 111. The front frame 4 is provided with a first through hole 42. The back of the fixed jaw plate 3 is provided with at least one mounting groove 32. Two symmetrically arranged stops 33 are fixedly disposed on the inner surface of the mounting groove 32 near the opening. The end of the screw 111 with the strip-shaped locking block 112 can pass through the first through hole 42 and extend into the mounting groove 32. After rotating 90 degrees, the strip-shaped locking block 112 can be positioned such that... The screw 111 is threaded to the nut 12 at the other end, and is secured inside the two stops 33. In addition, the first limiting fixture 1 also includes a pad 13 with a round hole. The pad 13 is sleeved on the screw 111 through the round hole and is located between the nut 12 and the front frame 4. By tightening the nut 12, the pad 13 is brought into contact with the front frame 4. This allows the fixed jaw plate 3 to be tightly held on the front frame 4 from the rear side by the T-bolt 11, effectively preventing the fixed jaw plate 3 from accidentally detaching and falling off the front frame 4 during disassembly and assembly. The overall structure is simple, easy to use, and has low manufacturing cost.

[0026] Preferably, there are two nuts 12, which can further prevent loosening.

[0027] Preferably, there are two mounting grooves 32, which are respectively located on the upper and lower sides of the back of the fixed jaw plate 3. When one end of the broken surface of the fixed jaw plate 3 is worn out and it is turned around, the first limiting tool 1 can also be used to limit and fix the fixed jaw plate 3. Example 2

[0028] As shown in Figures 4 to 7, the difference between this embodiment and Embodiment 1 is that the limiting device further includes a frame side plate 5, and the limiting fixture includes a second limiting fixture 2. There are two second limiting fixtures 2, which are respectively disposed between the two frame side plates 5 and the fixed jaw plate 3. The second limiting fixture 2 includes a locking bolt 21, a mounting plate 22, and a limiting block 23. The frame side plate 5 is provided with a second through hole 51, and the left and right sides of the fixed jaw plate 3 are provided with at least one limiting groove 34. The mounting plate 22 is fixedly disposed at one end of the limiting block 23, and the other end of the limiting block 23 can pass through the second through hole 51 and be inserted into the limiting groove 34. The mounting plate 22 is locked and fixed to the outer side surface of the frame side plate 5 by the locking bolt 21. In addition, the locking bolt 21... A washer can also be fitted on the bolt 21. Correspondingly, there are two locking bolts 21. The mounting plate 22 is provided with two locking holes through which the locking bolts 21 can pass. When the front end of the front frame 4 is obstructed, resulting in a narrow space and inconvenient operation, the second limiting fixture 2 facilitates operation from the left and right sides of the jaw crusher. The mounting plate 22 is locked and fixed to the outer side of the frame side plate 5 by the locking bolts 21, which ensures that the limiting block 23 is stably locked in the limiting groove 34 of the fixed jaw plate 3. In this way, the fixed jaw plate 3 can be limited and fixed from the left and right sides of the jaw crusher, effectively preventing the fixed jaw plate 3 from accidentally detaching and falling off the front frame 4 during disassembly and assembly. Its overall structure is simple, easy to use, and has low manufacturing cost.

[0029] Preferably, the cross-section of the limiting groove 34 is wedge-shaped, and a first inclined surface 341 is provided on one side of the limiting groove 34 near the back of the fixed jaw plate 3, so that the width of the limiting groove 34 gradually decreases from the outside to the inside. The other end of the limiting block 23 is adapted to the limiting groove 34 and is provided with a second inclined surface 231 that abuts and cooperates with the first inclined surface 341.

[0030] Preferably, the left and right sides of the fixed jaw plate 3 are provided with two limiting grooves 34 located on the upper and lower sides respectively. When one end of the broken surface of the fixed jaw plate 3 is worn out and it is turned around, the fixed jaw plate 3 can be conveniently limited and fixed by the second limiting tool 2.

[0031] Other technical features are the same as in Embodiment 1.

[0032] The above are only some specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using this concept shall be considered as an infringement of the protection scope of this utility model.

Claims

1. A limiting device for assembling and disassembling the fixed jaw plate of a jaw crusher, characterized in that: The device includes a limiting fixture and a front frame for mounting a fixed jaw plate. The fixed jaw plate has protrusions fixed at both the upper and lower edges of its back surface, forming a fitting cavity between the two protrusions. The front surface of the front frame has a fitting boss that is adapted to the fitting cavity. The fixed jaw plate is fitted onto the fitting boss of the front frame through the fitting cavity. The limiting fixture is used to apply a limiting force to the fixed jaw plate to prevent it from disengaging away from the front frame.

2. The limiting device for disassembling and assembling the fixed jaw plate of a jaw crusher according to claim 1, characterized in that: The limiting fixture includes a first limiting fixture, which is disposed between the front frame and the fixed jaw plate.

3. A limiting device for disassembling and assembling the fixed jaw plate of a jaw crusher according to claim 2, characterized in that: The first limiting fixture includes a T-bolt and at least one nut. The T-bolt includes a screw and a strip-shaped locking block fixedly disposed at one end of the screw. The front frame is provided with a first through hole. The back of the fixed jaw plate is provided with at least one mounting groove. Two symmetrically arranged stops are fixedly disposed on the inner surface of the mounting groove near the opening. The end of the screw with the strip-shaped locking block can pass through the first through hole and extend into the mounting groove. After rotating 90 degrees, the strip-shaped locking block can be locked inside the two stops. The other end of the screw is threadedly connected to the nut.

4. A limiting device for disassembling and assembling the fixed jaw plate of a jaw crusher according to claim 3, characterized in that: The first limiting fixture also includes a pad with a round hole. The pad is fitted onto the screw through the round hole and is located between the nut and the front frame.

5. A limiting device for disassembling and assembling the fixed jaw plate of a jaw crusher according to claim 3, characterized in that: There are two nuts.

6. A limiting device for disassembling and assembling the fixed jaw plate of a jaw crusher according to claim 3, characterized in that: The mounting slots are two in number and are respectively located on the upper and lower sides of the back of the fixed jaw plate.

7. A limiting device for assembling and disassembling the fixed jaw plate of a jaw crusher according to claim 1, characterized in that: It also includes frame side plates, and the limiting fixture includes a second limiting fixture, which consists of two second limiting fixtures, which are respectively disposed between the two frame side plates and the fixed jaw plate.

8. A limiting device for disassembling and assembling the fixed jaw plate of a jaw crusher according to claim 7, characterized in that: The second limiting fixture includes a locking bolt, a mounting plate, and a limiting block. The side plate of the frame is provided with a second through hole. The left and right sides of the fixed jaw plate are provided with at least one limiting groove. The mounting plate is fixedly disposed at one end of the limiting block. The other end of the limiting block can pass through the second through hole and be inserted into the limiting groove. The mounting plate is locked and fixed to the outer side surface of the side plate of the frame by the locking bolt.

9. A limiting device for disassembling and assembling the fixed jaw plate of a jaw crusher according to claim 8, characterized in that: The limiting groove has a wedge-shaped cross-section. A first inclined surface is provided on the side of the limiting groove near the back of the fixed jaw plate, and the width of the limiting groove gradually decreases from the outside to the inside. The other end of the limiting block is adapted to the limiting groove and is provided with a second inclined surface that abuts and cooperates with the first inclined surface.

10. A limiting device for disassembling and assembling the fixed jaw plate of a jaw crusher according to claim 8, characterized in that: The fixed jaw plate has two limiting grooves on its left and right sides, respectively located on its upper and lower sides.

Images