A jaw crusher wear tooth plate quick replacement device

Abstract

The utility model belongs to the technical field of crusher, especially a jaw crusher wear -resistant tooth plate quick replacement device, including work table and mounting block, one side fixed mounting of work table surface has dry ice cleaning machine, one side mounting of mounting block top has second motor, the output of second motor is connected with screw thread rotating shaft, the surface screw thread connection of screw thread rotating shaft has sliding block, one side fixed connection of sliding block surface has limit stop, one side installation of limit stop surface has third motor. Through the mutual approach between fixed clamping plate, aiming at the rust adhesion problem of tooth plate and junction, can use dry ice cleaning machine cooperation connecting pipe and spray head to the rust adhesion of tooth plate and junction and impact, make rust from tooth plate and the junction of matrix fall off, improve the efficiency of tooth plate replacement, reduce the security risk, through the mechanical mode removal and installation tooth plate, improve the precision between tooth plate, conveniently adjust tooth plate.

Description

Technical Field

[0001] This utility model belongs to the field of crusher technology, specifically relating to a quick replacement device for wear-resistant tooth plates in 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 movable jaw and a fixed jaw. They simulate the jaw movements of an animal to crush materials. A problem with jaw crushers is the inconvenience of adjusting the position of the movable jaw. The working principle of a jaw crusher is that a motor drives a belt and pulley, which in turn moves the movable jaw up and down via an eccentric shaft. When the movable jaw rises, the angle between the toggle plate and the movable jaw increases, pushing the movable jaw tooth plate closer to the fixed jaw tooth plate, simultaneously crushing or splitting the material. When the movable jaw descends, the angle between the toggle plate and the movable jaw decreases, and the movable jaw tooth plate, under the action of a pull rod and spring, moves away from the fixed jaw tooth plate, allowing the crushed material to be discharged from the bottom of the crushing chamber. With the continuous rotation of the motor, the movable jaw of the crusher periodically crushes and discharges material, achieving mass production.

[0003] Jaw crushers experience continuous wear and tear on their jaw plates during prolonged use. Worn jaw plates affect crushing efficiency and require replacement. Replacement involves manually removing worn jaw plates and inserting new ones. The jaw plates are heavy, and after long periods of crushing, significant rust accumulates between the plates and the joints. This rust or adhesion makes it difficult to separate the jaw plates from the substrate. Replacing the jaw plates requires considerable time for cleaning, resulting in low efficiency and safety hazards. Furthermore, the precision required for manually inserting new jaw plates is limited, making adjustments inconvenient. Utility Model Content

[0004] To address the problems mentioned in the background art, this utility model provides a quick replacement device for wear-resistant jaw plates in jaw crushers. This device solves the problems of excessive rust between the jaw plates and the connecting parts, rust or adhesion making it difficult to separate the jaw plates from the substrate, requiring workers to spend a lot of time cleaning the rust during replacement, resulting in low replacement efficiency, safety hazards, and limited accuracy when manually inserting new jaw plates.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick replacement device for wear-resistant tooth plates of a jaw crusher, comprising a worktable and a mounting block. A dry ice cleaner is fixedly installed on one side of the surface of the worktable. A second motor is installed on one side of the top of the mounting block. The output end of the second motor is connected to a threaded rotating shaft. A slider is threadedly connected to the surface of the threaded rotating shaft. A limit block is fixedly connected to one side of the surface of the slider. A third motor is installed on one side of the surface of the limit block. The output end of the third motor is connected to a bidirectional threaded rotating shaft. A movable block is threadedly connected to the surface of the bidirectional threaded rotating shaft. A fixed clamping plate is fixedly connected to one side of the top of the movable block. There are two sets of movable blocks and two sets of fixed clamping plates, and the two sets of movable blocks and fixed clamping plates are installed correspondingly.

[0006] Preferably, each of the four corners of the bottom of the workbench is fixedly connected to a support leg, and a caster wheel is installed on one side of the bottom of each support leg.

[0007] Preferably, a connecting pipe is connected to one side of the interior of the dry ice cleaning machine, and a nozzle is connected to the other end of the connecting pipe.

[0008] Preferably, a first motor is installed at the center of the workbench surface, the output end of the first motor is connected to a rotating shaft, one end of the rotating shaft is connected to a connecting column, and both ends of the connecting column are connected to one side of the surface of the mounting block.

[0009] Preferably, a plug is fixedly connected to one side of the surface of the fixing clamp, and the fixing clamp has a hole inside, with the hole and the plug corresponding to each other.

[0010] Preferably, the mounting block has a limiting groove inside, and the surface of the limiting groove is slidably connected to the surface of the slider.

[0011] Preferably, the limiting block has a limiting groove inside, and the surface of the limiting groove is slidably connected to the surfaces of the two sets of movable blocks.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] By fixing the clamping plates together, the insert blocks pass through the toothed plates and connect with the insertion holes to clamp and fix the toothed plates that need to be disassembled. To address the issue of rust and adhesion between the toothed plates and the connection points, a dry ice cleaning machine can be used with a connecting pipe and nozzle to impact the rust adhering to the toothed plates and the connection points, causing the rust to detach from the connection between the toothed plates and the base. Ultra-low temperature carbon dioxide is sprayed to clean the adhered rust while simultaneously using the principle of thermal expansion and contraction to separate the toothed plates from the base, improving the efficiency of toothed plate replacement and reducing safety hazards. This is achieved through threaded rotation. The shaft drives the movable block, fixed clamping plate, and the toothed plate to be replaced to rise, thereby removing the worn toothed plate. The fixed clamping plates on the other side then come together to hold the new toothed plate. The shaft then rotates to drive the connecting column, the new toothed plate, and the worn toothed plate to rotate. After their positions are exchanged, the screw-driven shaft drives the toothed plate to descend. Then, the clamping plates are released, and the new toothed plate can be placed on the base plate. The mechanical removal and installation of toothed plates improves the precision between the toothed plates and facilitates the adjustment of the toothed plates. 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 three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the workbench of this utility model;

[0017] Figure 3 This is a schematic diagram of the mounting block of this utility model;

[0018] Figure 4 This is a schematic diagram of the limiting block of this utility model;

[0019] Figure 5 This is a schematic diagram of the movable block of this utility model.

[0020] In the diagram: 1. Workbench; 2. Connecting column; 3. Mounting block; 4. Limiting block; 5. Rotating shaft; 6. First motor; 7. Caster wheel; 8. Dry ice cleaner; 9. Connecting pipe; 10. Nozzle; 11. Support leg; 12. Threaded rotating shaft; 13. Second motor; 14. Limiting groove; 15. Sliding block; 16. Insertion block; 17. Third motor; 18. Movable block; 19. Limiting groove; 20. Bidirectional threaded rotating shaft; 21. Insertion hole; 22. Fixing clamp. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-5 This utility model provides the following technical solution: a quick replacement device for wear-resistant tooth plates of a jaw crusher, including a workbench 1 and a mounting block 3. A dry ice cleaner 8 is fixedly installed on one side of the surface of the workbench 1. A second motor 13 is installed on one side of the top of the mounting block 3. The output end of the second motor 13 is connected to a threaded rotating shaft 12. A slider 15 is threadedly connected to the surface of the threaded rotating shaft 12. A limit block 4 is fixedly connected to one side of the surface of the slider 15. A third motor 17 is installed on one side of the surface of the limit block 4. The output end of the third motor 17 is connected to a bidirectional threaded rotating shaft 20. A movable block 18 is threadedly connected to the surface of the bidirectional threaded rotating shaft 20. A fixed clamping plate 22 is fixedly connected to one side of the top of the movable block 18. There are two sets of movable blocks 18 and two sets of fixed clamping plates 22, and the two sets of movable blocks 18 and fixed clamping plates 22 are installed correspondingly.

[0023] In this embodiment, the corresponding support leg 11 can improve the stability of the device and avoid errors when installing the toothed plate due to the instability of the workbench. Together with the universal wheels 7 at the bottom, it can be convenient for workers to move the device to the corresponding position, saving manpower.

[0024] In this embodiment, the dry ice cleaning machine 8, together with the connecting pipe 9 and the nozzle 10, washes away the rust that adheres to the connection between the substrate and the toothed plate, preventing the substrate and the toothed plate from being difficult to remove due to rust adhesion. At the same time, the ultra-low temperature carbon dioxide causes the worn toothed plate to have a cold contraction effect, making it easier to detach. Cleaning the surface of the substrate also makes it easier for workers to install new toothed plates, improving work efficiency.

[0025] In this embodiment: the first motor 6 drives the rotating shaft 5 and the connecting column 2 to rotate, thereby driving the mounting blocks 3 on both sides to rotate, which in turn drives the new toothed plate and the worn toothed plate to move in a mirror image. The removal of the worn toothed plate and the installation of the new toothed plate can be carried out simultaneously, shortening the working time and improving the accuracy when placing the toothed plate, without the need for the staff to frequently adjust the position of the device.

[0026] In this embodiment, the insert 21 passes through the perforation inside the toothed plate and contacts the insert 21, which improves the stability of the clamping plate 22 when holding the plate and avoids the toothed plate falling off during the clamping process, thus preventing safety hazards.

[0027] In this embodiment, the limiting groove 14 restricts the position of the slider 15 so that it can only be subjected to vertical force, thereby only being able to rise and fall horizontally, improving the stability when replacing the toothed plate.

[0028] In this embodiment, the two sets of corresponding fixed clamping plates 22 can be spaced apart or brought closer together to clamp toothed plates of different thicknesses, thus improving the applicability of the device.

[0029] The working principle and usage process of this utility model are as follows: After the utility model is installed, move the device to the corresponding position, then start the dry ice cleaning machine 8. Use the nozzle 10 to dry ice rinse the joint between the worn toothed plate and the base plate to clean the rust. Then start the third motor 17 to drive the bidirectional threaded rotating shaft 20 to rotate, thereby causing the movable block 18 to move under the restriction of the limiting groove 19. This, in turn, causes the fixed clamping plates 22 to move closer together, and finally causes the insert block 16 to move towards the through hole and insertion hole 21 of the toothed plate. The insert block 16 is then inserted into the insertion hole. After hole 21, turn off the third motor 17 and start the second motor 13 located on the same side as the new toothed plate. This motor drives the threaded rotating shaft 12, which in turn moves the slider 15 under the restriction of the limiting groove 15. This causes the limiting block 4 to rise, which in turn causes the fixed clamping plate 22 and the new toothed plate to rise. Then, start the second motor 17 on the other side, which drives the threaded rotating shaft 12 to rotate. This causes the slider 15 and the movable block 4 on the worn toothed plate side to fall, which in turn causes the fixed clamping plate 22 to fall. After the fixed clamping plate 22 is lowered to the corresponding position, turn off the second motor 13. Motor 13 starts the third motor 17 on the side of the worn toothed plate, thereby driving the bidirectional threaded rotating shaft 20 to rotate. This causes the movable blocks 18 to move closer together under the restriction of the limiting groove 19, which in turn causes the fixed clamping plates 22 to move closer together. After the insert block 16 passes through the through hole of the worn toothed plate and through the interior of the insert hole 21, the second motor 13 is started, causing it to drive the threaded rotating shaft 12 to rotate. This causes the worn toothed plate to rise. After the worn toothed plate is raised to the corresponding position, the first motor 6 is started, causing it to drive the rotating shaft 5 to rotate, thereby causing the connecting column 2 to rotate. This causes the new toothed plate and the worn toothed plate to rotate in a mirror image. After exchanging the positions of the new toothed plate and the worn toothed plate, the first motor 6 is turned off, and the second motor 13 on the side of the new toothed plate is started, which drives the threaded rotating shaft 12 to rotate, thereby causing the new toothed plate to descend. After the new toothed plate is lowered to the corresponding position, the third motor 17 on the side of the new toothed plate is started, and the clamping plates 22 move away from each other to release the clamping of the new toothed plate. After the new toothed plate is placed in its original position, it can be installed. All electrical equipment in this device is powered by an external power source.

[0030] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is 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 quick-change device for wear-resistant tooth plates of a jaw crusher, comprising a worktable (1) and a mounting block (3), characterized in that: A dry ice cleaning machine (8) is fixedly installed on one side of the surface of the workbench (1). A second motor (13) is installed on one side of the top of the mounting block (3). The output end of the second motor (13) is connected to a threaded rotating shaft (12). A slider (15) is threadedly connected to the surface of the threaded rotating shaft (12). A limit block (4) is fixedly connected to one side of the surface of the slider (15). A third motor (17) is installed on one side of the surface of the limit block (4). A bidirectional threaded rotating shaft (20) is connected to the output end of the third motor (17). A movable block (18) is threadedly connected to the surface of the bidirectional threaded rotating shaft (20). A fixed clamping plate (22) is fixedly connected to one side of the top of the movable block (18). There are two sets of movable blocks (18) and fixed clamping plates (22), and the two sets of movable blocks (18) and fixed clamping plates (22) are installed correspondingly.

2. The quick-change device for wear-resistant tooth plates of a jaw crusher according to claim 1, characterized in that: The workbench (1) has four fixed support legs (11) at the bottom corners, and a caster wheel (7) is installed on one side of the bottom of the support leg (11).

3. The quick-change device for wear-resistant tooth plates of a jaw crusher according to claim 1, characterized in that: A connecting pipe (9) is connected to one side of the interior of the dry ice cleaning machine (8), and a nozzle (10) is connected to the other end of the connecting pipe (9).

4. The quick-change device for wear-resistant tooth plates of a jaw crusher according to claim 1, characterized in that: A first motor (6) is installed at the center of the surface of the workbench (1). The output end of the first motor (6) is connected to a rotating shaft (5). One end of the rotating shaft (5) is connected to a connecting column (2). Both ends of the connecting column (2) are connected to one side of the surface of the mounting block (3).

5. A quick-change device for wear-resistant tooth plates in a jaw crusher according to claim 1, characterized in that: A plug (16) is fixedly connected to one side of the surface of the fixed clamp (22). The fixed clamp (22) has a plug hole (21) inside, and the positions of the plug hole (21) and the plug (16) correspond to each other.

6. The quick-change device for wear-resistant tooth plates of a jaw crusher according to claim 1, characterized in that: The mounting block (3) has a limiting groove (14) inside, and the surface of the limiting groove (14) is slidably connected to the surface of the slider (15).

7. A quick-change device for wear-resistant tooth plates in a jaw crusher according to claim 1, characterized in that: The limiting block (4) has a limiting groove (19) inside, and the surface of the limiting groove (19) is slidably connected to the surface of the two sets of movable blocks (18).

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