Pressing device of impact plate breaking hammer
The combination structure of clamping blocks, bolts, and nuts solves the problem of inconvenient installation of hammer plates in impact crushers, enabling quick disassembly and assembly and position adjustment of the hammer plates, thereby improving crushing efficiency.
Patent Information
- Application Number
- CN202422930131.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-11-28
AI Technical Summary
The installation and disassembly of the hammer plates in existing impact crushers are inconvenient, which leads to difficulties in adjusting the hammer plates after they wear out, thus affecting the crushing effect.
It adopts a combination structure of clamping blocks, bolts and nuts, and realizes movable clamping of the hammer through elastic elements and sliding connections, which facilitates the disassembly, assembly and position adjustment of the hammer.
It enables quick assembly and disassembly of the hammer and position adjustment, improving crushing efficiency and reducing operational difficulty.
Smart Images
Figure CN223615979U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of impact crusher technology, and in particular to a pressing device for impact crusher hammer. Background Technology
[0002] An impact crusher, also known as an impact breaker, is a highly efficient new type of crushing equipment. The working principle of an impact crusher is as follows: after the material enters the crushing chamber, it is crushed by the impact of the hammers on the high-speed rotating rotor. The crushed material is then thrown at high speed along the tangential direction towards the impact plate at the other end of the crushing chamber, where it is crushed again. The material repeatedly collides and impacts between the impact plate and the hammers until the particle size is smaller than the gap between them, and finally discharged from the discharge port.
[0003] Because the hammer directly impacts the material, it wears easily, leading to a larger distance between the impact plate and the hammer, thus affecting the crushing effect. To maintain a proper distance between the impact plate and the hammer, the hammer can be pulled off the rotor at one end to compensate for wear. (Reference) Figure 7 In the prior art, the hammer plate 3 is generally detachably connected to the rotor 1. When the position of the hammer plate 3 needs to be adjusted, the clamping block 4, bolt 5, and nut 6 need to be completely removed, which is inconvenient for disassembly and installation. Utility Model Content
[0004] This utility model addresses the problem of inconvenient installation and disassembly of impact crusher hammers in the prior art by proposing a clamping device for impact crusher hammers, which combines clamping blocks, bolts, and nuts to facilitate the installation and disassembly of the hammers.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A clamping device for a counter-breaking hammer includes a bracket and a clamping block. A protrusion is provided on one side of the hammer, and a groove matching the protrusion is provided on the bracket. The clamping block clamps the hammer against the bracket from the side of the hammer with the protrusion. The bracket includes a first plate and a second plate arranged opposite to each other, with a clamping space between them. The clamping space is used to accommodate a clamping block and a hammer. A limiting plate extending into the clamping space is provided on the top of the second plate, with a first bolt hole on the limiting plate and a second bolt hole on the clamping block. A follower seat is provided below the clamping block, and the clamping block and the follower seat are slidably connected in a first direction. The follower seat and the second plate are slidably connected in a second direction, with a third bolt hole on the follower seat. A nut matching the bolt is fixedly provided below the follower seat. The nut, the first bolt hole, and the third bolt hole are coaxially arranged. The bolt passes through the first bolt hole, the second bolt hole, and the third bolt hole in sequence and is threadedly connected to the nut. The second direction is parallel to the axis of the bolt, and the first direction is perpendicular to the second direction. The second bolt hole is an elongated hole extending in the first direction.
[0007] Preferably, the limiting plate is provided with a first inclined surface, the top side of the pressing block is provided with a second inclined surface, and the first plate is provided with a groove for accommodating the protrusion of the hammer. When the pressing block presses the hammer against the first plate, the second inclined surface of the pressing block is in contact with the first inclined surface of the second plate.
[0008] Preferably, an elastic element is provided between the clamping block and the follower seat, and the axis of the elastic element is arranged parallel to the first direction.
[0009] Preferably, the clamping block is provided with a first connecting block, the follower seat is provided with a second connecting block, and the elastic element is connected between the first connecting block and the second connecting block.
[0010] Preferably, a slider is fixedly provided on one side of the follower seat, and the second plate is provided with a slide groove extending in the second direction, with the slider matching the slide groove.
[0011] Preferably, the clamping block is provided with a flat surface, which is located below the second inclined surface and is perpendicular to the bolt. The second bolt hole is located on the flat surface.
[0012] Preferably, the second bolt hole extends from the edge of the plane into the interior, and one end of the second bolt hole connecting to the edge of the plane is an open end. A limiting plate is fixedly provided on the clamping block, and the limiting plate is located at the open end of the second bolt hole to form a restriction at the open end of the second bolt hole.
[0013] The beneficial effects of this utility model are as follows: The clamping device of this impact crusher hammer combines a clamping block, bolts, and nuts for movable clamping of the hammer, making the hammer easy to assemble and disassemble. When the hammer is worn and needs adjustment, the bolts are loosened, and the clamping block can move away from the hammer under the pull of the elastic element, releasing the clamping limit on the hammer and facilitating the adjustment of the hammer's position. After the hammer's position is adjusted, the bolts are tightened, and the clamping block can move closer to the hammer to clamp and limit the hammer, making operation convenient. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the clamping device of the impact crusher hammer;
[0015] Figure 2 This is a top view of the clamping block of the clamping device of the impact crusher hammer;
[0016] Figure 3 This is a schematic diagram of the clamping block of the clamping device of the impact crusher hammer;
[0017] Figure 4 This is a schematic diagram of the follower seat of the clamping device for the impact crusher hammer;
[0018] Figure 5This is a schematic diagram of the structure of one side of the second plate in the clamping device of this counter-attack crusher hammer;
[0019] Figure 6 This is a schematic diagram of the structure of the counter-attack plate-breaking hammer;
[0020] Figure 7 This is a schematic diagram of the structure of the impact crusher hammer clamping device in the prior art.
[0021] In the diagram: 1. Rotor; 2. Support; 3. Hammer; 4. Clamping block; 5. Bolt; 6. Nut; 7. Follower seat;
[0022] 21. First plate; 22. Second plate; 23. Pressing space; 24. First bolt hole; 25. First inclined surface; 31. Protrusion; 41. Second inclined surface; 42. Plane; 43. Second bolt hole; 44. Limiting plate; 45. Elastic element; 46. First connecting block; 47. Telescopic rod; 71. Sliding block; 72. Second connecting block. Detailed Implementation
[0023] 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.
[0024] Reference Figure 1 and Figure 6 A clamping device for a counter-breaking hammer includes a bracket 2 and a clamping block 4, wherein multiple brackets 2 are fixedly connected to a rotor 1, the brackets 2 are used to install hammers 3, and the clamping block 4 is used to clamp and limit the hammers 3. Multiple hammers 3 can be fixedly installed on the rotor 1.
[0025] For details, please refer to Figure 1 The bracket 2 includes a first plate 21 and a second plate 22 arranged opposite to each other. A pressing space 23 is provided between the first plate 21 and the second plate 22. The pressing space 23 is used to install the hammer 3. At the same time, the pressing block 4 also presses and limits the hammer 3 in the pressing space 23.
[0026] The first side of the hammer 3 has multiple parallel and evenly arranged protrusions 31. The first plate 21, on the side opposite the second plate 22, has multiple grooves, the position and number of which match the protrusions 31. When installing the hammer 3, the protrusions 31 of the hammer 3 are inserted into the grooves of the first plate 21, and then the clamping block 4 applies pressure to the second side of the hammer 3 to limit its position. (Reference) Figure 5 The second side of the hammer 3 is provided with multiple limiting strips 32, and there is a gap between the limiting strips 32. The pressing block 4 presses the hammer 3 from the gap between the limiting strips 32, and at the same time, the limiting strips 32 are used to limit the pressing block 4.
[0027] Furthermore, the part of the hammer 3 extending from the bracket 2 is the hammer head. After the hammer head of the hammer 3 wears down, the hammer 3 can be loosened, its position adjusted, and pulled off the bracket 2 by an adjustment distance to compensate for the wear of the hammer 3. The distance between the protrusions 31 is an adjustment distance.
[0028] refer to Figure 1 The second plate 22 is provided with a follower seat 7, and a slider 71 is fixedly mounted on one side of the follower seat 7. The second plate 22 is provided with a sliding groove extending in a second direction, and the slider 71 matches the sliding groove. A clamping block 4 is connected to the upper part of the follower seat 7, and the clamping block 4 is slidably connected to the follower seat 7 in a first direction, which is perpendicular to the second direction. (Reference) Figure 2 A first connecting block 46 is provided on the clamping block 4, and a second connecting block 72 is provided on the follower seat 7. An elastic element 45 is provided between the first connecting block 46 and the second connecting block 72, and the axis of the elastic element 45 is parallel to the first direction. The elastic element 45 is used to connect the first connecting block 46 and the second connecting block 72, so that the first connecting block 46 and the second connecting block 72 are close to each other.
[0029] In this embodiment, the elastic element 45 is provided with a telescopic rod 47 inside. The telescopic rod 47 is formed by multiple cylindrical bodies connected together. The telescopic rod 47 is located inside the elastic element 45 and is used to support the elastic element 45 and reduce the bending and twisting of the elastic element 45.
[0030] Furthermore, the clamping block 4 is detachably connected to the second plate 22 via bolts 5. Specifically, the top of the second plate 22 is provided with a limiting plate extending into the clamping space 23, and the limiting plate is provided with a first bolt hole 24, as shown in the reference. Figure 3 The clamping block 4 is provided with a second bolt hole 43, for reference. Figure 4 The follower seat 7 is provided with a third bolt hole 73. (Reference) Figure 1 A nut 6 matching the bolt 5 is fixedly installed below the follower seat 7. The nut 6, the first bolt hole 24 and the third bolt hole 73 are coaxially arranged. The bolt 5 passes through the first bolt hole 24 of the second plate 22, the second bolt hole 43 of the clamping block 4 and the third bolt hole 73 of the follower seat 7 in sequence and is then threadedly connected to the nut 6.
[0031] It is worth noting that the aforementioned second direction is set parallel to the axis of bolt 5.
[0032] Furthermore, the clamping block 4 is provided with a plane 42, which is located below the second inclined surface 41 and is perpendicular to the bolt 5. The second bolt hole 43 is provided with the plane 42 and is an elongated hole extending in the first direction, allowing the bolt 5 to move relative to the bolt 5 within the second bolt hole 43 along the first direction.
[0033] Furthermore, the second bolt hole 43 extends from the edge of the plane 42 into the interior. One end of the second bolt hole 43 connected to the edge of the plane 42 is an open end. A limiting plate 44 is fixedly provided on the clamping block 4. The limiting plate 44 is located at the open end of the second bolt hole 43 to form a restriction at the open end of the second bolt hole 43, so as to prevent the bolt 5 from sliding out from the outlet end of the second bolt hole 43.
[0034] Further reference Figure 1 The limiting plate is provided with a first inclined surface 25, and the top side of the clamping block 4 is provided with a second inclined surface 41. When the clamping block 4 presses the hammer 3 against the first plate 21, and the bolt 5 is turned, the second inclined surface 41 of the clamping block 4 and the first inclined surface 25 of the second plate 22 are in contact and slide relative to each other; when the bolt 5 is tightened, the second inclined surface 41 of the clamping block 4 and the first inclined surface 25 of the second plate 22 are in contact and their relative positions are fixed, thus completing the clamping of the hammer 3 by the clamping block 4.
[0035] refer to Figure 5 To facilitate the installation of the clamping block 4, the second plate 22 is also spaced out. The position of the second plate 22 corresponds to the gap between the limiting strip 32. The clamping block 4 enters the clamping space 23 from the gap between the second plates 22 or is taken out from the clamping space 23.
[0036] The working process of the clamping device of this impact crusher is as follows:
[0037] When adjusting the position of hammer 3, loosen bolt 5. Bolt 5 remains stationary in the second direction position. Then, follower seat 7 and nut 6 move downwards. Under the pull of elastic element 45, clamping block 4 moves away from hammer 3. Clamping block 4 leaves hammer 3, releasing the limit on hammer 3. The worker pulls hammer 3 off the bracket 2 by an adjustment distance to replenish the wear of hammer 3 or replace hammer 3 directly.
[0038] Once the position of the hammer 3 is adjusted, tighten the bolt 5. With the bolt 5 stationary in the second direction, the follower seat 7 and nut 6 move upwards. The follower seat 7 pushes the clamping block 4 upwards, causing the second inclined surface 41 of the clamping block 4 to slide relative to the first inclined surface 25 of the second plate 22. The clamping block 4 moves closer to the hammer 3 until it presses against the hammer 3, completing the installation of the clamping block 4. During this process, the elastic element 45 is compressed, and the elastic element 45 can be used to prevent the nut 6 from loosening.
[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A clamping device for a counter-cracking hammer, comprising a bracket and a clamping block, wherein a protruding strip is provided on one side of the hammer, and a groove matching the protruding strip is provided on the bracket, and the clamping block clamps the hammer against the bracket from the side of the hammer opposite to where the protruding strip is provided, characterized in that, The bracket includes a first plate and a second plate arranged opposite to each other, with a clamping space between them. The clamping space is used to accommodate a clamping block and a hammer. A limiting plate extending into the clamping space is provided on the top of the second plate, and a first bolt hole is provided on the limiting plate. A second bolt hole is provided on the clamping block, and a follower seat is provided below the clamping block. The clamping block and the follower seat are slidably connected in a first direction, and the follower seat is slidably connected to the second plate in a second direction. A third bolt hole is provided on the follower seat, and a nut matching the bolt is fixedly provided below the follower seat. The nut, the first bolt hole, and the third bolt hole are coaxially arranged. The bolt passes through the first bolt hole, the second bolt hole, and the third bolt hole in sequence and is threadedly connected to the nut. The second direction is parallel to the axis of the bolt, and the first direction is perpendicular to the second direction. The second bolt hole is an elongated hole extending in the first direction.
2. The clamping device for the impact crusher hammer according to claim 1, characterized in that, The limiting plate is provided with a first inclined surface, and the top side of the pressing block is provided with a second inclined surface. The first plate is provided with a groove for accommodating the protrusion of the hammer. When the pressing block presses the hammer against the first plate, the second inclined surface of the pressing block is in contact with the first inclined surface of the second plate.
3. The clamping device for the impact crusher hammer according to claim 2, characterized in that, An elastic element is provided between the clamping block and the follower seat, and the axis of the elastic element is arranged parallel to the first direction.
4. The clamping device for the impact crusher hammer according to claim 3, characterized in that, The clamping block is provided with a first connecting block, the follower seat is provided with a second connecting block, and the elastic element is connected between the first connecting block and the second connecting block.
5. The clamping device for the impact crusher hammer according to claim 2, characterized in that, A slider is fixedly provided on one side of the follower seat, and the second plate is provided with a sliding groove extending in the second direction, and the slider matches the sliding groove.
6. The clamping device for the impact crusher hammer according to claim 2, characterized in that, The clamping block has a flat surface located below the second inclined surface. The flat surface is perpendicular to the bolt, and the second bolt hole is located on the flat surface.
7. The clamping device for the impact crusher hammer according to claim 6, characterized in that, The second bolt hole extends from the edge of the plane into the interior. One end of the second bolt hole connecting to the edge of the plane is an open end. A limiting plate is fixedly provided on the clamping block. The limiting plate is located at the open end of the second bolt hole to form a restriction at the open end of the second bolt hole.