Efficient double-toothed roller coal lump crusher and broken tooth plate thereof

Abstract

The utility model discloses a kind of efficient double-toothed roll coal block crusher and its broken tooth plate, it is related to crushing technical field, to solve the problem that broken tooth plate usually adopts bolt and is directly fixed on roller body, when replacing, bolt needs to be disassembled one by one, not only operation is complicated, time-consuming is longer, affect production continuity problem;Including crusher body, driving motor is equipped on the crusher body, and the crushing assembly in the crusher body is driven by driving motor;Through the cooperation of adjusting mechanism and locking block, locking groove, without disassembling multiple bolts, the dismounting of tooth plate can be completed. When replacing, only need to rotate adjusting screw cylinder, locking block can be driven to slide through lifting block and connecting plate, realize locking and unlocking, greatly shorten replacement time, reduce equipment downtime, improve production continuity.

Description

Technical Field

[0001] This utility model relates to the field of crushing technology, and in particular to a high-efficiency double-toothed roller coal block crusher and its crushing tooth plate. Background Technology

[0002] Coal crushing is a crucial step in coal mining, processing, and utilization, aiming to break large coal lumps into particle sizes suitable for subsequent processing or use. Double-toothed roll crushers are widely used in coal crushing operations due to their high crushing efficiency and strong adaptability.

[0003] In existing technologies, crushing tooth plates are usually directly fixed to the roller body with bolts. When replacing them, the bolts need to be removed one by one, which is not only cumbersome and time-consuming, affecting the continuity of production, but also the bolts are prone to loosening during the long-term vibration operation of the crusher, resulting in a decrease in the positioning accuracy of the tooth plate. This not only affects the uniformity of crushed particle size, but may also cause additional wear or safety hazards due to the shaking of the tooth plate.

[0004] Therefore, this application provides a high-efficiency double-toothed roller coal block crusher and its crushing tooth plate to meet the requirements. Utility Model Content

[0005] The purpose of this application is to provide a high-efficiency double-toothed roller coal block crusher and its crushing tooth plate, which aims to solve the problem that the crushing tooth plate is usually directly fixed to the roller body with bolts, and the bolts need to be removed one by one when replacing it, which is not only cumbersome and time-consuming, but also affects the continuity of production.

[0006] To achieve the above objectives, this application provides the following technical solution: a high-efficiency double-toothed roller coal block crusher, including a crusher body, a drive motor on the crusher body, and crushing components inside the crusher body driven by the drive motor.

[0007] The crushing toothed plate is installed on the high-efficiency double-toothed roller coal block crusher.

[0008] Preferably, the crushing component includes an inner support member, an inner shaft, and a toothed plate. The inner support member is connected to the inner shaft, and two sets of inner support members are provided, arranged symmetrically. The inner support has a through hole, and a locking block is slidably connected in the through hole. The locking block is adapted to the locking groove at the bottom of the toothed plate. An adjustment mechanism is provided on the inner shaft, which controls the locking block to slide within the perforation.

[0009] Preferably, the locking groove is divided into two sections, one of which is a rectangular structure and the other is a T-shaped structure; A set of limiting holes is provided between the two sets of locking grooves.

[0010] Preferably, the adjustment mechanism includes a screw and an adjusting screw cylinder, a connecting piece, a lifting block, and a connecting plate. The screw is located on the outer wall of the inner shaft, and the adjusting screw cylinder is threaded onto the screw. The adjusting screw hole and the limiting hole are compatible. A lifting block is slidably connected to the screw. U-shaped connectors are provided on the outer walls of both the lifting block and the locking block. The two sets of connectors are connected by a set of connecting plates. A fixing component is provided on the outer wall of the inner shaft, and a positioning hole adapted to the fixing component is provided on the connecting plate.

[0011] Preferably, a set of pre-tightening components is press-fitted between the lifting block and the inner shaft.

[0012] Preferably, the preload element is a spring.

[0013] Preferably, a set of sliding rods is provided inside the perforation, and the locking block is provided with sliding holes that are adapted to the sliding rods.

[0014] In summary, the technical effects and advantages of this utility model are as follows: This invention allows for the assembly and disassembly of the toothed plate without disassembling multiple bolts, through the cooperation of the adjusting mechanism with the locking block and locking groove. During replacement, simply rotating the adjusting screw causes the locking block to slide via the lifting block and connecting plate, achieving locking and unlocking. This significantly shortens replacement time, reduces equipment downtime, and improves production continuity. The matching structure of the fixing block and locking groove (rectangular and T-shaped sections) and the guiding effect of the perforated inner sliding rod on the locking block ensure the positioning accuracy of the toothed plate during installation, avoiding uneven particle size due to toothed plate misalignment. Simultaneously, the cooperation between the limiting hole and the adjusting screw, and the limiting effect of the fixing component and the positioning hole of the connecting plate, further enhance the stability of the toothed plate after installation.

[0015] In this invention, the adjusting mechanism uses the pressing action of the adjusting screw on the lifting block and the pre-tightening force of the pre-tightening component (spring) to ensure that the locking block is stably engaged in the T-shaped section of the locking groove. This effectively prevents the toothed plate from loosening due to vibration during crusher operation and reduces safety hazards during equipment operation. The entire replacement process can be completed by rotating the adjusting screw without the need for complicated tools. Furthermore, the pre-tightening component assists in the reset of the locking block, reducing manual operation and lowering the labor intensity of operators. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the crushing component structure of this utility model; Figure 3 This is a schematic cross-sectional view of the crushing component of this utility model; Figure 4 This is a schematic diagram of the toothed plate structure of this utility model.

[0018] In the diagram: 1. Crusher body; 2. Drive motor; 3. Crushing assembly; 4. Inner support; 400. Through hole; 5. Inner shaft; 500. Fixing component; 6. Screw; 7. Tooth plate; 700. Locking groove; 701. Limiting hole; 8. Slide rod; 9. Locking block; 900. Sliding hole; 10. Connecting component; 11. Lifting block; 12. Connecting plate; 1200. Positioning hole; 13. Pre-tightening component. Detailed Implementation

[0019] 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.

[0020] Example: Reference Figure 1-4 The high-efficiency double-toothed roller coal block crusher shown includes a crusher body 1, a drive motor 2 installed on the crusher body 1, and a crushing component 3 inside the crusher body 1 driven to rotate by the drive motor 2 to realize coal block crushing operation.

[0021] Crushing toothed plates, including high-efficiency double-toothed roller coal block crushers.

[0022] In one embodiment of this invention, the crushing component 3 comprises: an inner support member 4, an inner shaft 5, and a toothed plate 7. Two sets of the inner shaft 5 are provided, and the inner shaft 5 is connected to the output end of the drive motor 2. The inner support member 4 is fixedly connected to the inner shaft 5, and two sets of the inner support member 4 are symmetrically distributed on both sides of the inner shaft 5, forming a double-toothed roller structure. The toothed plate 7 is detachably installed on the outside of the inner support member 4. The two sets of crushing components 3 achieve crushing through compression and shearing with the coal blocks.

[0023] In one embodiment of this invention, to enable quick assembly and disassembly of the toothed plate 7, the inner support 4 has a through hole 400, within which a locking block 9 is slidably connected. A locking groove 700, matching the locking block 9, is provided at a corresponding position on the bottom of the toothed plate 7. The locking groove 700 is divided into two sections: a rectangular section near the edge of the toothed plate 7 and a T-shaped section away from the edge. The width of the T-shaped section is greater than that of the rectangular section, and a limiting hole 701 is provided between the two sets of locking grooves 700. A set of sliding rods 8 is also fixed within the through hole 400. The locking block 9 has a sliding hole 900 matching the sliding rod 8. The sliding rod 8 cooperates with the sliding hole 900 to guide and limit the sliding of the locking block 9, ensuring its stable movement.

[0024] In one embodiment, the inner shaft 5 is provided with an adjustment mechanism to control the sliding of the locking block 9 within the through hole 400, thereby locking and unlocking the toothed plate 7. The adjustment mechanism includes a screw 6, an adjusting screw cylinder, a connecting piece 10, a lifting block 11, and a connecting plate 12. The screw 6 is vertically fixed to the outer wall of the inner shaft 5, and the adjusting screw cylinder is threadedly connected to the screw 6. The size of the adjusting screw cylinder is adapted to the limiting hole 701, and it can be inserted into the limiting hole 701 to achieve limiting. The lifting block 11 is slidably sleeved on the screw 6 and located between the adjusting screw cylinder and the inner shaft 5. A set of pre-tightening members 13 is press-fitted between the lifting block 11 and the inner shaft 5. The pre-tightening members 13 are preferably springs, used to provide an upward pre-tightening force for the lifting block 11.

[0025] In one embodiment, U-shaped connectors 10 are fixed to the outer walls of both the lifting block 11 and the locking block 9. Both ends of the connecting plate 12 are C-shaped structures, and each end is engaged with one of the two sets of connectors 10, thus achieving linkage between the lifting block 11 and the locking block 9. A fixing member 500 is also fixed to the outer wall of the inner shaft 5. The connecting plate 12 has positioning holes 1200 that fit the fixing member 500. The fixing member 500 is engaged in the positioning holes 1200 to limit the movement trajectory of the connecting plate 12, ensuring stable transmission.

[0026] The working principle of this utility model is as follows: When it is necessary to replace the toothed plate 7, first stop the drive motor 2 on the crusher body 1. After the crushing component 3 has stopped rotating, use a removal tool to insert into the hexagonal groove on the top surface of the screw barrel. Then rotate the screw barrel. When the screw barrel rotates upward, it releases the limit on the lifting block 11 on the screw 6. Then, under the action of the pre-tightening member 13, the lifting block 11 is pushed upward. The pre-tightening member 13 is a spring. The upward-moving lifting block 11 pulls the locking block 9 inward through the action of the connecting plate 12, so that the locking block 9 slides in the through hole 400 and the locking groove 700. The locking block 9 moves from the T-shaped groove position of the locking groove 700 to the rectangular groove position, thereby releasing the limit relationship between the locking block 9 and the toothed plate 7. Then, the corresponding toothed plate 7 is lifted using lifting tools, and the new toothed plate 7 is moved to the corresponding position and installed on the inner support 4. During this process, the locking block 9 is aligned with the locking groove 700 to complete the initial positioning. Then, the screw cylinder that matches the position of the limiting hole 701 is rotated in the opposite direction again, so that the screw cylinder rotates on the screw 6 and pushes the lifting block 11 downward. The lifting block 11 presses down the spring and pushes the locking block 9 to slide in the through hole 400 and the locking groove 700 through the connecting plate 12 to complete the locking installation of the replacement toothed plate 7. A sliding rod 8 is provided inside the perforation 400 to position the sliding locking block 9 (the locking block 9 is provided with a sliding hole 900 that matches the sliding rod 8). Both the lifting block 11 and the locking block 9 are provided with U-shaped connectors 10. Both ends of the connecting plate 12 are C-shaped structures. The two ends of the connecting plate 12 are engaged with the connectors 10. In order to limit the connecting plate 12, a positioning hole 1200 is provided on the connecting plate 12. The fixing member 500 is adapted to the positioning hole 1200 to achieve the purpose of limiting the connecting plate 12.

[0027] Then the drive motor 2 is started again, and the drive motor 2 drives the inner support 4 and the toothed plate 7 to rotate through the inner shaft 5.

[0028] The electromechanical connections involved in this utility model are common practices used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments; they are common knowledge.

[0029] Components not described in detail in this article are existing technologies.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A crushing toothed plate, characterized in that: The crushing component (3) includes an inner support (4), an inner shaft (5), and a toothed plate (7). The inner support (4) is connected to the inner shaft (5), and the inner support (4) is provided in two sets, symmetrically arranged. A through hole (400) is provided on the inner support member (4), and a locking block (9) is slidably connected in the through hole (400). The locking block (9) is adapted to the locking groove (700) at the bottom of the toothed plate (7). An adjustment mechanism is provided on the inner shaft (5), which controls the locking block (9) to slide within the through hole (400).

2. A crushing toothed plate according to claim 1, characterized in that: The locking groove (700) is divided into two sections, one of which is a rectangular structure and the other is a T-shaped structure; A set of limiting holes (701) is provided between the two sets of locking grooves (700).

3. A crushing toothed plate according to claim 2, characterized in that: The adjustment mechanism includes a screw (6) and an adjusting screw cylinder, a connector (10), a lifting block (11), and a connecting plate (12). The screw (6) is located on the outer wall of the inner shaft (5), and the adjusting screw cylinder is threadedly connected to the screw (6). The adjusting screw cylinder is adapted to the limiting hole (701). The screw (6) is slidably connected to the lifting block (11). Both the lifting block (11) and the locking block (9) are provided with U-shaped connectors (10). The two sets of connectors (10) are connected by a set of connecting plates (12). A fixing member (500) is provided on the outer wall of the inner shaft (5), and a positioning hole (1200) adapted to the fixing member (500) is provided on the connecting plate (12).

4. A crushing toothed plate according to claim 3, characterized in that: A set of pre-tightening components (13) are press-fitted between the lifting block (11) and the inner shaft (5).

5. A crushing toothed plate according to claim 4, characterized in that: The preload (13) is a spring.

6. A crushing toothed plate according to claim 3, characterized in that: A set of slide rods (8) is provided inside the perforation (400), and a slide hole (900) adapted to the slide rods (8) is provided on the locking block (9).

7. A high-efficiency double-toothed roller coal block crusher, characterized in that: The crusher includes the crushing toothed plate as described in claims 1-6, a crusher body (1), a drive motor (2) is provided on the crusher body (1), and the crushing components (3) inside the crusher body (1) are driven by the drive motor (2).

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