A press roll clamping device for a crusher

By designing a bidirectional threaded rod system consisting of a locking block, a movable ring, a compression spring, and a servo motor drive, the problems of inconvenient disassembly of the pressure rollers and spacing adjustment were solved, thereby improving the disassembly efficiency and crushing effect of the crusher.

CN224486131UActive Publication Date: 2026-07-14WEIHAI HENGLI WEAR-RESISTANT MATERIALS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WEIHAI HENGLI WEAR-RESISTANT MATERIALS CO LTD
Filing Date
2025-08-13
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

The pressure rollers of existing roller crushers are inconvenient to disassemble, and it is difficult to adjust the gap between the pressure rollers according to the material size to optimize the crushing effect.

Method used

A pressure roller clamping device was designed, comprising a locking block, a movable ring, a compression spring, and a connecting shaft. The movable ring is driven by a slider to compress the spring, enabling quick disassembly of the pressure roller. The pressure roller spacing is adjusted by a servo motor driving a bidirectional threaded rod and a transmission belt to accommodate material sizes.

Benefits of technology

It enables quick disassembly and flexible adjustment of the pressure rollers, improving the operating efficiency of the crusher and the material crushing effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a crusher, especially a crushing machine's pressure roller clamping device, including mounting frame, the quantity of mounting frame is two, the inside slide connection has the sliding seat of first sliding groove, the inside of connecting shaft has the clamping groove, the one end fixed connection of clamping block far away from clamping groove has the movable ring, the one end fixed connection of connecting column far away from clamping block has the pressure roller, the inside of connecting column has installed groove, the inboard wall fixed connection of installed groove has compression spring, the circumference of connecting column sets up second sliding groove, the inside slide connection has the sliding block of second sliding groove, and the circumference fixed connection of sliding block and movable ring. The utility model discloses through setting up clamping block, movable ring, compression spring and connecting shaft, the quick disassembly of pressure roller is convenient to the size of material, adjusts according to the material, makes the pressure roller better material bite into the crusher.
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Description

Technical Field

[0001] This utility model relates to a crusher, and more particularly to a crusher roller clamping device. Background Technology

[0002] Crushers are pulverizing machines used in the processing of metal and non-metal ores to break mined raw ore into small particles through compression and bending. Roller crushers are a common type of crusher.

[0003] When using existing roller crushers, the material needs to be bitten into the crusher by the pressure roller. After a long period of use, the pressure roller is prone to wear and needs to be replaced. However, the pressure roller is usually fixed inside the mounting frame, which makes it inconvenient to disassemble the pressure roller. Summary of the Invention

[0004] The purpose of this invention is to provide a pressure roller clamping device for a crusher to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A pressure roller clamping device for a crusher is provided, including two mounting frames. Each mounting frame has a first sliding groove inside. A sliding block is slidably connected inside the first sliding groove. A connecting shaft is rotatably connected inside the sliding block. A slot is formed inside the connecting shaft. A locking block is inserted into the slot. A movable ring is fixedly connected to the end of the locking block away from the slot. A connecting column is movably connected to the outside of the movable ring. A pressure roller is fixedly connected to the end of the connecting column away from the locking block. An installation groove is formed inside the connecting column. A compression spring is fixedly connected to the inner sidewall of the installation groove, and the compression spring is in contact with the side surface of the movable ring. A second sliding groove is formed on the circumferential surface of the connecting column. A slider is slidably connected inside the second sliding groove, and the slider is fixedly connected to the circumferential surface of the movable ring. By setting up a locking block, a movable ring, a compression spring, and a connecting shaft, the pressure roller is disassembled by pushing the slider from both sides simultaneously. The slider drives the movable ring to compress the compression spring, thereby causing the locking block to move out of the slot inside the connecting shaft, which facilitates quick disassembly of the pressure roller.

[0006] Optionally, the first slide groove is rectangular, the slide block is T-shaped, and the bottom end of the slide block is in contact with the inner sidewall of the first slide groove.

[0007] Optionally, the interiors of the two first slide grooves are respectively rotatably connected to a first bidirectional threaded rod and a second bidirectional threaded rod, and the first bidirectional threaded rod and the second bidirectional threaded rod are respectively threadedly connected to the interior of the slide block.

[0008] Optionally, the ends of the first and second bidirectional threaded rods away from the mounting bracket are both fixedly connected to drive wheels, and the two drive wheels are movably connected to a drive belt.

[0009] Optionally, the end of the first bidirectional threaded rod furthest from the mounting frame is fixedly connected to the output end of a servo motor, and a support plate is fixedly connected to the front end face of the mounting frame, with the servo motor fixedly connected to the top of the support plate. In use, the servo motor is started, driving the first bidirectional threaded rod to rotate. Through the cooperation of the transmission wheel and transmission belt, the second bidirectional threaded rod rotates synchronously, thereby adjusting the distance between the slide blocks. This allows for changing the distance between the two pressure rollers of the slide blocks, which can be adjusted according to the size of the material, enabling the pressure rollers to better bite the material into the crusher.

[0010] Optionally, the two slides near one end of the second bidirectional threaded rod are each connected to a rotating shaft via a connecting shaft, and are symmetrically distributed.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This utility model is equipped with a locking block, a movable ring, a compression spring and a connecting shaft. When the pressure roller is disassembled, the slider is pushed from both sides at the same time. The slider drives the movable ring to compress the compression spring, thereby driving the locking block to move out of the slot inside the connecting shaft, which facilitates the quick disassembly of the pressure roller.

[0013] 2. This utility model is equipped with a first bidirectional threaded rod, a second bidirectional threaded rod, a transmission wheel, and a transmission belt. When the device is in use, the servo motor is started to drive the first bidirectional threaded rod to rotate. Through the cooperation of the transmission wheel and the transmission belt, the second bidirectional threaded rod is driven to rotate synchronously, thereby adjusting the distance between the slides. This can change the distance between the two pressure rollers of the slides, which can be adjusted according to the size of the material, so that the pressure rollers can better bite the material into the crusher. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[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 internal structure of the present invention;

[0017] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0018] Figure 4 This utility model Figure 2 A magnified structural diagram at point B in the middle.

[0019] In the diagram: 1. Mounting bracket; 2. First bidirectional threaded rod; 3. First slide groove; 4. Locking block; 5. Connecting column; 6. Movable ring; 7. Second slide groove; 8. Compression spring; 9. Pressure roller; 10. Mounting groove; 11. Rotating shaft; 12. Slide block; 13. Connecting shaft; 14. Transmission wheel; 15. Transmission belt; 16. Servo motor; 17. Locking groove; 18. Slider; 19. Second bidirectional threaded rod. Detailed Implementation

[0020] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] Reference Figures 1-4 A crusher roller clamping device includes two mounting frames 1. Each mounting frame 1 has a first sliding groove 3 inside. A slide seat 12 is slidably connected inside the first sliding groove 3. A connecting shaft 13 is rotatably connected inside the slide seat 12. A slot 17 is opened inside the connecting shaft 13. A locking block 4 is inserted into the slot 17. A movable ring 6 is fixedly connected to the end of the locking block 4 away from the slot 17. A connecting column 5 is movably connected to the outside of the movable ring 6. A pressure roller 9 is fixedly connected to the end of the connecting column 5 away from the locking block 4. An installation groove 10 is opened inside the connecting column 5. A compression spring 8 is fixedly connected to the inner side wall of the installation groove 10 and is in contact with the side surface of the movable ring 6. A second sliding groove 7 is opened on the circumferential surface of the connecting column 5. A slider 18 is slidably connected inside the second sliding groove 7 and is fixedly connected to the circumferential surface of the movable ring 6. When disassembling the pressure roller 9, push the slider 18 from both sides simultaneously. The slider 18 drives the movable ring 6 to compress the compression spring 8, thereby causing the locking block 4 to move out of the locking groove 17 inside the connecting shaft 13, which facilitates the quick disassembly of the pressure roller 9.

[0022] The first slide groove 3 is rectangular, and the slide block 12 is T-shaped, with the bottom end of the slide block 12 fitting against the inner wall of the first slide groove 3. The slide block 12 slides inside the first slide groove 3.

[0023] The two first sliding grooves 3 are respectively rotatably connected to a first bidirectional threaded rod 2 and a second bidirectional threaded rod 19, and the first bidirectional threaded rod 2 and the second bidirectional threaded rod 19 are respectively threadedly connected to the inside of the slide block 12. The rotation of the first bidirectional threaded rod 2 and the second bidirectional threaded rod 19 drives the slide blocks 12 on both sides to rotate.

[0024] Both the first bidirectional threaded rod 2 and the second bidirectional threaded rod 19 have a drive wheel 14 fixedly connected to their ends away from the mounting frame 1. A drive belt 15 is movably connected to the outside of the two drive wheels 14. The drive wheels 14 and the drive belt 15 work together to drive the second bidirectional threaded rod 19 to rotate synchronously, thereby adjusting the distance between the slide blocks 12. This, in turn, changes the distance between the two pressure rollers 9, allowing adjustment based on the material size, so that the pressure rollers 9 can better bite the material into the crusher.

[0025] The first bidirectional threaded rod 2 is fixedly connected to the output end of a servo motor 16 at the end furthest from the mounting bracket 1. A support plate is fixedly connected to the front end face of the mounting bracket 1, and the servo motor 16 is fixedly connected to the top of the support plate. The servo motor 16 drives the first bidirectional threaded rod 2 to rotate, thereby engaging the two transmission wheels 14 and the transmission belt 15.

[0026] Two sliding blocks 12 near one end of the second bidirectional threaded rod 19 each have a rotating shaft 11 inserted inside via a connecting shaft 13, and they are symmetrically distributed. The rotating shaft 11 can be connected to the output end of a motor, thereby driving the pressure roller 9 to rotate.

[0027] Working principle: When in use, the two mounting brackets 1 are installed above the crusher. During use, the rotating shaft 11 is connected to the output end of the motor, thereby driving the clamping block 4 to rotate through the connecting shaft 13, which in turn drives the pressure roller 9 to rotate, biting the material into the crusher. After a long period of use, the pressure roller 9 will wear out and need to be replaced. When disassembling the pressure roller 9, push the slider 18 from both sides at the same time. The slider 18 drives the movable ring 6 to compress the compression spring 8, thereby driving the clamping block 4 to move out of the groove 17 inside the connecting shaft 13, which facilitates the quick disassembly of the pressure roller 9.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements 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 pressure roller clamping device for a crusher, comprising a mounting frame (1), characterized in that: There are two mounting brackets (1). Each mounting bracket (1) has a first sliding groove (3) inside. A slide block (12) is slidably connected inside the first sliding groove (3). A connecting shaft (13) is rotatably connected inside the slide block (12). A slot (17) is provided inside the connecting shaft (13). A locking block (4) is inserted into the slot (17). A movable ring (6) is fixedly connected to the end of the locking block (4) away from the slot (17). The movable ring (6) is movably connected to the outside of... A connecting column (5) is fixedly connected to a pressure roller (9) at one end away from the locking block (4). An installation groove (10) is provided inside the connecting column (5). A compression spring (8) is fixedly connected to the inner side wall of the installation groove (10), and the compression spring (8) is in contact with the side surface of the movable ring (6). A second sliding groove (7) is provided on the circumferential surface of the connecting column (5). A slider (18) is slidably connected inside the second sliding groove (7), and the slider (18) is fixedly connected to the circumferential surface of the movable ring (6).

2. The crusher pressure roller clamping device as described in claim 1, characterized in that: The first slide groove (3) is rectangular, the slide block (12) is T-shaped, and the bottom end of the slide block (12) is in contact with the inner wall of the first slide groove (3).

3. The crusher pressure roller clamping device as described in claim 1, characterized in that: The two first slide grooves (3) are respectively rotatably connected to a first bidirectional threaded rod (2) and a second bidirectional threaded rod (19), and the first bidirectional threaded rod (2) and the second bidirectional threaded rod (19) are respectively threaded to the inside of the slide block (12).

4. The crusher pressure roller clamping device as described in claim 3, characterized in that: The first bidirectional threaded rod (2) and the second bidirectional threaded rod (19) are both fixedly connected to a drive wheel (14) at the end away from the mounting bracket (1), and the two drive wheels (14) are movably connected to a drive belt (15).

5. The crusher pressure roller clamping device as described in claim 4, characterized in that: The first bidirectional threaded rod (2) is fixedly connected to the output end of a servo motor (16) at the end away from the mounting bracket (1). The front end face of the mounting bracket (1) is fixedly connected to a support plate, and the servo motor (16) is fixedly connected to the top of the support plate.

6. The crusher pressure roller clamping device as described in claim 3, characterized in that: The two slides (12) near one end of the second bidirectional threaded rod (19) are each connected to a rotating shaft (11) via a connecting shaft (13), and are symmetrically distributed.