Toggle plate fixing device of jaw crusher

Abstract

The utility model discloses a jaw crusher toggle plate fixing device which comprises a machine body, a fixed jaw part fixed with the machine body is arranged on the inner side of the machine body, a movable jaw part is arranged on one side, located on the fixed jaw part, of the inner side of the machine body, an eccentric shaft is arranged at the position, close to the top end, of the movable jaw part, and belt wheels are arranged at the two ends of the eccentric shaft. The two sets of belt wheels are connected with an external driving motor, a hydraulic protection device is arranged at the position, close to the bottom end, of the movable jaw part, a toggle plate seat is arranged on the side, located on the movable jaw part, of the inner side of the machine body, and a toggle plate is connected between the toggle plate seat and the movable jaw part through an anti-disengaging mechanism. By means of the structure, the toggle plate can be fixed under the condition that the freedom degree is not lost, the toggle plate cannot fall off under the special conditions of overload and the like, then through the structure, time, manpower and material resources needed by installation due to the fact that the toggle plate falls off are greatly saved, and equipment can stably run for a long time.

Description

Technical Field

[0001] This utility model relates to the field of jaw crusher technology, specifically to a jaw crusher toggle plate fixing device. Background Technology

[0002] Jaw crushers, also known as jaw breakers or tiger's mouth crushers, consist of two jaw plates, a moving jaw and a stationary jaw, forming a crushing chamber. They are crushers that mimic the movement of an animal's jaws to complete the crushing operation. Jaw crushers are suitable for coarse and medium crushing operations under harsh conditions where materials contain extremely hard and strong foreign objects. When the jaws bite into an uncrushable object, the impact plate breaks off and relieves the impact without damaging the machine itself.

[0003] Currently, the toggle plate of jaw crushers does not have an anti-detachment device. During the installation, commissioning, or operation of the crusher, the toggle plate may detach. Due to the space constraints of the equipment structure, installing the toggle plate is time-consuming and labor-intensive, which greatly affects the operating efficiency of the equipment and the stability of the entire system. Therefore, it is necessary to design a jaw crusher toggle plate fixing device to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a jaw crusher toggle plate fixing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a jaw crusher toggle plate fixing device, comprising a body, a fixed jaw portion fixed to the body on the inner side of the body, a movable jaw portion on one side of the fixed jaw portion on the inner side of the body, an eccentric shaft near the top of the movable jaw portion, pulleys at both ends of the eccentric shaft, two sets of pulleys connected to an external drive motor, a hydraulic protection device near the bottom of the movable jaw portion, and a toggle plate seat on one side of the movable jaw portion on the inner side of the body, with a toggle plate connected to the movable jaw portion via an anti-detachment mechanism.

[0006] Preferably, the anti-detachment mechanism includes an elbow plate fixing plate one, one end of the elbow plate is hinged to one end of the elbow plate seat, and the other end of the elbow plate is hinged to an elbow plate fixing plate two. The elbow plate fixing plate two is welded to one side of the movable jaw. The top of the elbow plate is provided with movable grooves near both ends. The elbow plate fixing plate one passes through the inner side of both sets of movable grooves. Both sets of elbow plate fixing plates one are connected to the elbow plate seat and the elbow plate fixing plate two respectively by bolts.

[0007] Preferably, the elbow plate surface is coated with a wear-resistant coating.

[0008] Preferably, a certain gap is maintained between the elbow plate fixing plate and the elbow plate.

[0009] Preferably, both the first elbow plate fixing plate and the second elbow plate fixing plate are made of high-strength steel plate.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. This utility model, through the setting of the elbow plate fixing plate, not only limits the elbow plate while providing a certain amount of movement space, but also ensures that the elbow plate is free to move during operation and prevents it from falling off during installation, commissioning, or operation. This design enables the equipment to operate stably for a long time, providing a guarantee for the long-term stable operation of the entire system and greatly reducing the time required for elbow plate detachment and reinstallation. At the same time, due to its low production cost, simple structure, ease of maintenance, and high cost performance, it is well adapted to the needs of the modern market. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0013] Figure 2 This is a schematic diagram of the elbow plate structure.

[0014] Figure 3 A schematic diagram of a portion of the elbow plate fixing plate;

[0015] Figure 4 This is a schematic diagram of the two-part structure of the elbow plate fixing plate.

[0016] In the diagram: 1. Body, 2. Fixed jaw, 3. Moving jaw, 4. Eccentric shaft, 5. Pulley, 6. Hydraulic protection device, 7. Elbow plate seat, 8. Elbow plate, 9. Elbow plate fixing plate one, 10. Elbow plate fixing plate two, 11. Movable groove. Detailed Implementation

[0017] 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.

[0018] Example 1: Please refer to Figure 1-4As shown, this utility model provides a jaw crusher toggle plate fixing device, including a body 1, a fixed jaw part 2 fixed to the body 1 on the inner side of the body 1, a movable jaw part 3 on one side of the fixed jaw part 2 on the inner side of the body 1, an eccentric shaft 4 near the top of the movable jaw part 3, pulleys 5 at both ends of the eccentric shaft 4, and two sets of pulleys 5 connected to an external drive motor, a hydraulic protection device 6 near the bottom of the movable jaw part 3, and a toggle plate seat 7 on one side of the movable jaw part 3 on the inner side of the body 1, with a toggle plate 8 connected to the movable jaw part 3 through an anti-detachment mechanism.

[0019] Specifically, when the jaw crusher is working, the drive motor drives the eccentric shaft 4 to rotate through two sets of pulleys 5. The eccentric shaft 4 causes the moving jaw 3 to swing back and forth. As the moving jaw 3 approaches the fixed jaw 2, the material is squeezed into the crushing chamber and crushed by compression, splitting and bending. The crushed material can be discharged from the machine body 1 through the discharge port at the moment the moving jaw 3 leaves the fixed jaw 2, thus completing the crushing operation. Through the anti-detachment mechanism, the toggle plate 8 can be fixed without losing its degree of freedom and will not fall off under special conditions such as overload. Thus, through the above structure, the time, manpower and material resources required for installation due to the toggle plate 8 falling off are greatly saved, and the equipment can be operated stably for a long time.

[0020] The anti-detachment mechanism includes an elbow plate fixing plate 19. One end of the elbow plate 8 is hinged to one end of the elbow plate seat 7, and the other end of the elbow plate 8 is hinged to an elbow plate fixing plate 20. The elbow plate fixing plate 20 is welded to one side of the moving jaw 3. The top of the elbow plate 8 is provided with movable grooves 11 near both ends. The elbow plate fixing plate 19 passes through the inner side of both sets of movable grooves 11. The elbow plate fixing plates 19 are connected to the elbow plate seat 7 and the elbow plate fixing plate 20 respectively by bolts. By setting the elbow plate fixing plate 19, the elbow plate 8 is limited while providing a certain amount of movement space. This not only allows the elbow plate 8 to work freely, but also prevents the elbow plate 8 from falling off during installation, commissioning, or operation. Thus, by setting this mechanism, the equipment can operate stably for a long time, providing a guarantee for the long-term stable operation of the entire system and greatly reducing the time required for the elbow plate 8 to fall off and be reinstalled.

[0021] The elbow plate 8 is coated with a wear-resistant coating, which improves its wear resistance, extends its service life, and reduces the maintenance cost of the equipment.

[0022] Among them, a certain gap is maintained between the elbow plate fixing plate 9 and the elbow plate 8. By setting it, the elbow plate 8 can be allowed to swing freely during normal operation, but will not lose its limiting function due to excessive gap.

[0023] Both the first elbow plate fixing plate 9 and the second elbow plate fixing plate 10 are made of high-strength steel plates, which can effectively improve their overall strength and service life.

[0024] Working principle: First, when the jaw crusher is working, the drive motor drives the eccentric shaft 4 to rotate through two sets of pulleys 5. The eccentric shaft 4 causes the moving jaw 3 to swing back and forth. As the moving jaw 3 approaches the fixed jaw 2, the material is squeezed in the crushing chamber and crushed by compression, splitting and bending. The crushed material can be discharged from the outside of the machine body 1 by its own weight at the moment the moving jaw 3 leaves the fixed jaw 2, thus completing the crushing operation. The set toggle plate fixing plate 9 limits the toggle plate 8 while providing a certain amount of movement space for the toggle plate 8. This not only allows the toggle plate 8 to work freely, but also prevents the toggle plate 8 from falling off during installation, trial run or operation, thus completing the entire operation process.

[0025] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0026] Although the present invention 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 the present invention should be included within the protection scope of the present invention.

Claims

1. A jaw crusher toggle plate fixing device, comprising a machine body (1), characterized in that: The inner side of the body (1) is provided with a fixed jaw (2) fixed to the body (1). The inner side of the body (1) is provided with a movable jaw (3) on one side of the fixed jaw (2). The movable jaw (3) is provided with an eccentric shaft (4) near the top. Both ends of the eccentric shaft (4) are provided with pulleys (5). The two sets of pulleys (5) are connected to an external drive motor. The movable jaw (3) is provided with a hydraulic protection device (6) near the bottom. The inner side of the body (1) is provided with an elbow plate seat (7) on one side of the movable jaw (3). The elbow plate seat (7) and the movable jaw (3) are connected by an elbow plate (8) through an anti-detachment mechanism.

2. The jaw crusher toggle plate fixing device according to claim 1, characterized in that: The anti-detachment mechanism includes an elbow plate fixing plate one (9), one end of the elbow plate (8) is hinged to one end of the elbow plate seat (7), and the other end of the elbow plate (8) is hinged to an elbow plate fixing plate two (10). The elbow plate fixing plate two (10) is welded to one side of the moving jaw part (3). The top of the elbow plate (8) is provided with movable grooves (11) near both ends. The elbow plate fixing plate one (9) passes through the inner side of the two sets of movable grooves (11). The elbow plate fixing plate one (9) is connected to the elbow plate seat (7) and the elbow plate fixing plate two (10) respectively by bolts.

3. The jaw crusher toggle plate fixing device according to claim 2, characterized in that: The elbow plate (8) is coated with a wear-resistant coating.

4. The jaw crusher toggle plate fixing device according to claim 2, characterized in that: A certain gap is maintained between the elbow plate fixing plate (9) and the elbow plate (8).

5. The jaw crusher toggle plate fixing device according to claim 4, characterized in that: Both the first elbow plate fixing plate (9) and the second elbow plate fixing plate (10) are made of high-strength steel plate.

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