Anti-rotation protection device for rotor of impact crusher

Abstract

The utility model relates to the technical field of impact crushers, and discloses an anti-rotation protection device for a rotor of an impact crusher, which comprises a rack, and the outer side of the rack is fixedly connected with a mounting seat. According to the utility model, the positioning pins are inserted into the two corresponding positioning grooves arranged on the plate hammer, so that the positioning pins are connected with the positioning grooves, and the plate hammer does not shake, so that the rotor body is stably positioned by the positioning pins; the movable frame is pressed to move towards one side of the fixing groove to drive the sliding rod to slide along the guide groove, meanwhile, a tension spring arranged on the outer side of the first traction block pulls the second traction block through elastic force to enable the adjusting plate to slide towards one side, and when the sliding rod slides to the end of the guide groove, the sliding rod slides into the inner side of the limiting groove to enable the movable frame to enter a fixed state; and one end of the moving frame drives the fixing rod to enter the inner side of the fixing groove, so that the steel plate is positioned, and the device can be quickly assembled and disassembled without tools.

Description

Technical Field

[0001] This utility model relates to the field of impact crusher technology, specifically to an anti-rotation protection device for an impact crusher rotor. Background Technology

[0002] Impact crushers are widely used in material crushing in industries such as mining and construction. One of their core components is the rotor, which is usually driven by a motor and performs the crushing task at high speed. During rotor maintenance, current technology typically uses simple supports such as wooden sticks to prevent the rotor from rolling and ensure the safety of maintenance personnel.

[0003] Existing anti-rotation protection devices for impact crushers use wooden sticks for support during maintenance, which is a simple and inexpensive method. However, the wooden sticks are easily damaged under stress and cannot guarantee the complete fixation of the rotor during maintenance, which may lead to accidental rotation of the rotor and pose a safety risk to maintenance personnel. In addition, some protection devices on the market require tools to fix the device to the crusher frame with bolts to prevent the rotor from rolling. After maintenance, the bolts need to be removed one by one with tools to separate the device from the crusher, which is a cumbersome process and reduces the efficiency of crusher maintenance. Utility Model Content

[0004] The purpose of this invention is to provide a rotor anti-rotation protection device for an impact crusher to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rotor anti-rotation protection device for an impact crusher, comprising:

[0006] frame;

[0007] A mounting base is fixedly connected to the outside of the frame, and a connecting frame is fixedly connected to the bottom of the mounting base. A rotor body is provided inside the frame, and a hammer plate is installed on the outside of the rotor body.

[0008] A steel plate is disposed on the inner side of the mounting base, a limiting component for limiting its movement is disposed on the outer side of the steel plate, and a fixing block is installed on the bottom of the steel plate;

[0009] Positioning pins are provided on the top surface of the steel plate and two are arranged laterally. One end of each positioning pin is provided with an adjustment component, and two positioning grooves are provided laterally on the inner side of the hammer.

[0010] Two adjusting plates are symmetrically arranged and slide on the inner side of the connecting frame. The inner side of each adjusting plate is provided with a fixing component, and the outer side of each adjusting plate is provided with a traction component. A handle for pushing them to slide synchronously is fixedly connected to one side of each adjusting plate.

[0011] A connecting component is located on the inner side of the connecting frame. Two fixing rods for positioning the steel plate are symmetrically arranged on the outer side of the connecting component. Springs are sleeved on the outer side of both fixing rods. Two fixing grooves are opened on the inner side of the fixing block.

[0012] Preferably, the adjusting assembly includes a screw threaded to one end of a positioning pin, and one end of the screw is fixedly connected to an adjusting pin.

[0013] Preferably, the limiting component includes a connecting block fixed to the outside of the steel plate, and the inner side of the mounting base is provided with a connecting groove, and the outer side of the connecting block is slidably connected to the inner side of the connecting groove.

[0014] Preferably, the connecting assembly includes a movable frame that slides on the inner wall of the connecting frame, a sliding rod is fixedly connected to the outer side of the movable frame, and the outer side of the movable frame is fixedly connected to one end of two fixed rods respectively.

[0015] Preferably, the fixing component includes a guide groove formed inside the adjusting plate, one end of which is connected to a limiting groove.

[0016] Preferably, the traction assembly includes a first traction block fixed to the inner wall of the connecting frame, a tension spring is provided on the outer side of the first traction block, a second traction block is provided on the other end of the tension spring, and the outer side of the first traction block is slidably connected to the inner side of the adjusting plate.

[0017] Preferably, the outer side of the positioning pin is slidably connected to the inner side of the positioning groove, and the outer side of the fixing rod is slidably connected to the inner side of the fixing groove.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] This invention uses positioning pins inserted into two corresponding positioning slots on the hammer plate to prevent the rotor body from rotating. When the diameters of the positioning slots on the hammer plate are different, an adjusting pin of the corresponding size can be pre-screwed into one end of the positioning pin connected to the screw thread. This prevents the hammer plate from shaking when the positioning pin is connected to the positioning slot, thus ensuring stable positioning of the rotor body and reducing the possibility of accidental rotor rolling. By pressing the moving frame to move it to one side of the fixed slot, the sliding rod slides along the guide slot. At the same time, the tension spring on the outside of the first traction block pulls the second traction block, causing the adjusting plate to slide to one side. When the sliding rod slides to the end of the guide slot, it slides into the inner side of the limiting slot. Through the movement of the adjusting plate, the limiting slot is locked on the outside of the sliding rod, thus fixing the moving frame. Simultaneously, one end of the moving frame has driven the fixing rod into the inner side of the fixed slot, fixing the fixing block and preventing it from moving. This completes the positioning of the steel plate, enabling quick loading and unloading of the device without the aid of tools, improving the efficiency of crusher maintenance. Attached Figure Description

[0020] Figure 1 A schematic diagram of a preferred embodiment of the anti-rotation protection device for the rotor of an impact crusher provided by this utility model;

[0021] Figure 2 A schematic diagram of the side structure of the frame provided by this utility model;

[0022] Figure 3 A schematic diagram of the bottom structure of the mounting base provided by this utility model;

[0023] Figure 4 A schematic diagram of the adjustment component structure provided by this utility model;

[0024] Figure 5 A schematic diagram of the traction component structure provided by this utility model.

[0025] In the diagram: 1. Frame; 2. Mounting base; 3. Connecting frame; 4. Rotor body; 5. Hammer plate; 6. Steel plate; 7. Positioning pin; 8. Adjusting assembly; 81. Screw; 82. Adjusting pin; 9. Limiting assembly; 91. Connecting block; 92. Connecting groove; 10. Fixing block; 11. Connecting assembly; 111. Moving frame; 112. Slide rod; 12. Adjusting plate; 13. Fixing assembly; 131. Guide groove; 132. Limiting groove; 14. Traction assembly; 141. First traction block; 142. Tension spring; 143. Second traction block; 15. Fixing rod; 16. Fixing groove; 17. Handle; 18. Spring; 19. Positioning groove. Detailed Implementation

[0026] 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.

[0027] Please see Figure 1-5As shown, an anti-rotation protection device for an impact crusher rotor includes a frame 1; a mounting base 2 is fixedly connected to the outer side of the frame 1, and a connecting frame 3 is fixedly connected to the bottom of the mounting base 2; a rotor body 4 is installed inside the frame 1, and the rotor body 4 is aligned with the bearing seat hole on the frame 1 via a rotating shaft, and then fixed to the frame 1 using suitable fasteners (such as bolts, nuts, fixing brackets, etc.). The rotor body 4 generates strong centrifugal force and inertial force through high-speed rotation, which causes the hammers 5 fixed on it to impact the material at high speed, thereby achieving crushing; hammers 5 are installed on the outer side of the rotor body 4, and are connected to the rotor body 4 by bolts; steel Plate 6, located inside mounting base 2, serves as a support for the positioning pins 7. A fixing block 10 at its bottom is bolted to it, while the positioning pins 7 are welded to the top surface of plate 6. A limiting component 9 for limiting the movement of the plate 6 is located on its outer side, and the fixing block 10 is installed at the bottom of plate 6. Two positioning pins 7, located on the top surface of plate 6 and arranged laterally, are inserted into corresponding positioning slots 19 on the hammer 5 to lock the position of the hammer 5, preventing the rotor body 4 from rotating. An adjusting component 8 is provided at one end of each positioning pin 7, and two positioning slots 19 are laterally arranged on the inner side of the hammer 5. A positioning groove 19 is provided to connect with the positioning pin 7, and it is located on the inner side of the hammer 5. Two adjusting plates 12 are symmetrically arranged and slide on the inner side of the connecting frame 3. Each adjusting plate 12 is connected to a sliding groove on the inner wall of the connecting frame 3 via a slider fixed on one side, allowing it to slide laterally along the inner side of the connecting frame 3. A fixing component 13 is provided on the inner side of each adjusting plate 12, and a traction component 14 is provided on the outer side of each adjusting plate 12. A handle 17 is fixedly connected to one side of each adjusting plate 12 to push them to slide synchronously. The handle 17 allows the two adjusting plates 12 to move laterally, thereby adjusting their position. (Connecting component) 11. Two fixing rods 15 for positioning the steel plate 6 are symmetrically arranged on the outer side of the connecting component 11, located inside the connecting frame 3. By setting the fixing rods 15, the moving frame 111 is driven into the inner side of the fixing groove 16, which can fix the fixing block 10 and improve the stability of the steel plate 6. Springs 18 are sleeved on the outer side of the two fixing rods 15. By setting the springs 18, one end of the springs 18 contacts the inner wall of the connecting frame 3 and the other end contacts the moving frame 111. When the sliding rod 112 is disengaged from the inner side of the limiting groove 132, the moving frame 111 loses its limit, and the rebound force accumulated by the springs 18 will push the moving frame 111 to complete the reset. Two fixing grooves 16 are opened on the inner side of the fixing block 10.

[0028] The adjusting component 8 includes a screw 81 threaded to one end of the positioning pin 7. One end of the screw 81 is fixedly connected to an adjusting pin 82. By setting the adjusting component 8, when the diameter of the positioning groove 19 set in the hammer 5 is different, the adjusting pin 82 of the corresponding specification can be pre-screwed into one end of the positioning pin 7 threaded to the screw 81. The adjusting pin 82 can be flexibly disassembled and used through the screw 81.

[0029] The limiting component 9 includes a connecting block 91 fixed to the outside of the steel plate 6. A connecting groove 92 is provided on the inner side of the mounting base 2, and the outer side of the connecting block 91 is slidably connected to the inner side of the connecting groove 92. By setting the limiting component 9, the connecting block 91 and the connecting groove 92 are connected, facilitating the installation or removal of the steel plate 6. Simultaneously, it can limit the vertical movement of the steel plate 6, facilitating the stable positioning of the rotor body 4 by the positioning pin 7. The connecting component 11 includes a movable frame 111 that slides along the inner wall of the connecting frame 3. By setting the movable frame 111, it can move parallel to the slot opened on the inner wall of the connecting frame 3, driving the fixed... Rod 15 enters or disengages from the inner side of the fixing groove 16; a sliding rod 112 is fixedly connected to the outer side of the movable frame 111. By setting the sliding rod 112, when the movable frame 111 moves to one side of the fixing groove 16, it will drive the sliding rod 112 to slide along the guide groove 131. When the sliding rod 112 slides to the end of the guide groove 131, it then slides into the inner side of the limiting groove 132. The limiting groove 132 is locked on the outer side of the sliding rod 112, thereby making the sliding rod 112 enter the fixed state; and the outer side of the movable frame 111 is fixedly connected to one end of each of the two fixing rods 15; the fixing assembly 13 includes a guide groove 13 opened inside the adjusting plate 12. 1. A guide groove 131 is provided, with its inner side designed to be inclined, to guide the slide rod 112 to slide along its inclined surface toward the limiting groove 132; one end of the guide groove 131 is connected to the limiting groove 132. The limiting groove 132 is rectangular in shape, with its inner width corresponding to that of the slide rod 112. A slot communicating with the guide groove 131 is provided on its long side, allowing the slide rod 112 to enter or leave its inner side. Its function is to limit and fix the slide rod 112, thereby preventing the moving frame 111 from moving; the traction assembly 14 includes a first traction block 141 fixed to the inner wall of the connecting frame 3, and by setting the first traction block 141, the guide groove 132 is connected to the limiting groove 132. A traction block 141 slides on the inner side of the slot provided in the adjusting plate 12, and is used to pull the second traction block 143 to its position by the elastic force of the tension spring 142; a tension spring 142 is provided on the outer side of the first traction block 141, and the two ends of the tension spring 142 are fixedly connected to the first traction block 141 and the second traction block 143 respectively by connecting members, and is used to pull the second traction block 143 by its elastic force, so that the adjusting plate 12 slides to one side; the other end of the tension spring 142 is provided with the second traction block 143, and the outer side of the first traction block 141 is slidably connected to the inner side of the adjusting plate 12.

[0030] The outer side of the positioning pin 7 is slidably connected to the inner side of the positioning groove 19, and the outer side of the fixing rod 15 is slidably connected to the inner side of the fixing groove 16.

[0031] Working principle: When the rotor body 4 needs to be fixed during use, first align the connecting block 91 with the connecting groove 92, then push the steel plate 6 into the inner side of the mounting base 2 to initially fix the steel plate 6. Then press the moving frame 111 to move it to one side of the fixing groove 16, causing the slide rod 112 to slide along the guide groove 131. At the same time, the tension spring 142 set on the outside of the first traction block 141 pulls the second traction block 143 through its elastic force, causing the adjusting plate 12 to slide to one side. When the slide rod 112 slides to the end of the guide groove 131, it then slides into the inner side of the limiting groove 132. Through the movement of the adjusting plate 12, the limiting groove 132 is locked on the outside of the slide rod 112, thereby fixing the moving frame 111. At the same time, one end of the moving frame 111 has already driven the fixing rod 15 into the inner side of the fixing groove 16 to fix the fixing block 10, making it unable to move, thus completing the positioning of the steel plate 6. At the same time, the positioning pin 7 is inserted into the plate. The hammer 5 is provided with two corresponding positioning slots 19 to prevent the rotor body 4 from rotating. When the positioning slots 19 provided with the hammer 5 have different diameters, the corresponding adjustment pins 82 can be pre-screwed into one end of the positioning pin 7 that is threaded to the screw 81. When the positioning pin 7 is connected to the positioning slot 19, the hammer 5 will not shake, so that the positioning pin 7 can stably position the rotor body 4. When the steel plate 6 needs to be disassembled after maintenance, the two adjustment plates 12 are pushed to the side of the connecting frame 3 by the handle 17. As the adjustment plates 12 move gradually, when the slide rod 112 is located at the opening where the limiting slot 132 and the guide slot 131 are connected, the spring 18 in the compressed state pushes the moving frame 111 to move backward because the slide rod 112 loses the limit of the limiting slot 132. At the same time, it drives the fixing rod 15 to disengage from the inside of the fixing slot 16, and the fixing block 10 disengages from the limit. Then, the steel plate 6 is pulled to separate it from the mounting base 2.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rotor anti-rotation protection device for an impact crusher, characterized in that, include: Rack (1); A mounting base (2) is fixedly connected to the outside of the frame (1), and a connecting frame (3) is fixedly connected to the bottom of the mounting base (2). A rotor body (4) is provided inside the frame (1), and a hammer plate (5) is installed on the outside of the rotor body (4). A steel plate (6) is disposed on the inner side of the mounting base (2), and a limiting component (9) for limiting the steel plate (6) is disposed on the outer side of the steel plate (6), and a fixing block (10) is installed on the bottom of the steel plate (6). Positioning pins (7) are provided on the top surface of the steel plate (6) and two are arranged horizontally. One end of each of the two positioning pins (7) is provided with an adjustment component (8), and two positioning grooves (19) are arranged horizontally on the inner side of the hammer (5). Two adjusting plates (12) are symmetrically arranged and slide on the inner side of the connecting frame (3). The inner side of each adjusting plate (12) is provided with a fixing component (13), and the outer side of each adjusting plate (12) is provided with a traction component (14). A handle (17) for pushing them to slide synchronously is fixedly connected to one side of each adjusting plate (12). A connecting component (11) is disposed on the inner side of the connecting frame (3). Two fixing rods (15) for positioning the steel plate (6) are symmetrically arranged on the outer side of the connecting component (11). Springs (18) are sleeved on the outer side of the two fixing rods (15). Two fixing grooves (16) are opened on the inner side of the fixing block (10).

2. The anti-rotation protection device for an impact crusher rotor according to claim 1, characterized in that: The adjusting assembly (8) includes a screw (81) threaded to one end of a positioning pin (7), and an adjusting pin (82) is fixedly connected to one end of the screw (81).

3. The anti-rotation protection device for an impact crusher rotor according to claim 1, characterized in that: The limiting component (9) includes a connecting block (91) fixed to the outside of the steel plate (6), and a connecting groove (92) is provided on the inner side of the mounting base (2), and the outer side of the connecting block (91) is slidably connected to the inner side of the connecting groove (92).

4. The anti-rotation protection device for an impact crusher rotor according to claim 1, characterized in that: The connecting assembly (11) includes a movable frame (111) that slides on the inner wall of the connecting frame (3). A sliding rod (112) is fixedly connected to the outer side of the movable frame (111), and the outer side of the movable frame (111) is fixedly connected to one end of two fixed rods (15).

5. The anti-rotation protection device for an impact crusher rotor according to claim 1, characterized in that: The fixing component (13) includes a guide groove (131) formed inside the adjusting plate (12), one end of which is connected to a limiting groove (132).

6. The anti-rotation protection device for an impact crusher rotor according to claim 1, characterized in that: The traction assembly (14) includes a first traction block (141) fixed to the inner wall of the connecting frame (3), a tension spring (142) is provided on the outer side of the first traction block (141), a second traction block (143) is provided on the other end of the tension spring (142), and the outer side of the first traction block (141) is slidably connected to the inner side of the adjusting plate (12).

7. The anti-rotation protection device for an impact crusher rotor according to claim 1, characterized in that: The outer side of the positioning pin (7) is slidably connected to the inner side of the positioning groove (19), and the outer side of the fixing rod (15) is slidably connected to the inner side of the fixing groove (16).

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