Impact crusher plate hammer

Abstract

The utility model discloses an impact crusher plate hammer which comprises a rotating power shaft, a plurality of impact plate hammers are arranged on the rotating power shaft, the impact plate hammers are evenly and annularly distributed on the side face of the rotating power shaft with a rotating shaft of the rotating power shaft as the center, and a plurality of first supports used for installing the impact plate hammers are arranged on the side face of the rotating power shaft. A pressing block used for pressing the impact plate hammer is arranged on the first support, the pressing block is connected with the first support through a bolt, a second support is arranged at the bottom of the pressing block and used for installing a nut matched with the bolt, and the nut is in sliding connection with the second support in the axial direction of the bolt. According to the plate hammer of the impact crusher, the nut is arranged at the bottom of the pressing block, when the bolt is disassembled and assembled, the bolt can be fastened and loosened only by screwing the bolt, the bolt is convenient to disassemble and assemble, and the impact plate hammer can be replaced more efficiently.

Description

Technical Field

[0001] This utility model relates to the field of crusher technology, and in particular to an impact crusher hammer. Background Technology

[0002] An impact crusher is a highly efficient new type of crushing equipment that uses impact energy to crush materials. It is typically placed after a jaw crusher as a secondary crushing device, working in conjunction with it to complete the crushing process. 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 and needs to be replaced. The hammer is typically detachably connected to the rotor. In existing technology, the hammer is pressed onto the rotor by a clamping block, which is then connected to the rotor with bolts, allowing for detachable installation. However, due to the separate design of the bolts and nuts, when installing the clamping block, the worker needs one hand to hold both the clamping block and the nut in place, while the other hand needs to tighten the bolts, making installation inconvenient. Utility Model Content

[0004] This invention addresses the inconvenience of installing clamping blocks in existing technologies by proposing an impact crusher hammer where a nut is installed on the clamping block, facilitating the installation of the clamping block and enabling efficient replacement of the hammer.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An impact crusher hammer includes a rotating power shaft with multiple impact hammers mounted on it. The impact hammers are evenly distributed around the rotating axis of the power shaft on its side. Multiple first supports for mounting the impact hammers are provided on the side of the power shaft. Each first support has a clamping block for pressing the impact hammers. At least one side of each impact hammer has a protrusion, and the first supports have grooves for accommodating the protrusion. The clamping blocks press the impact hammers against the opposite side of the protrusion to achieve clamping and limiting of the impact hammers. The clamping blocks are connected to the first supports by bolts. A second support is provided at the bottom of the clamping blocks for mounting nuts that match the bolts. The nuts and the second support are slidably connected axially to the bolts.

[0007] Preferably, the first support includes a first plate and a second plate disposed opposite to each other, with a clamping space between the first plate and the second plate. The clamping space is used to accommodate a clamping block and a counter-attack hammer. A limiting plate extending into the clamping space is provided on the top of the second plate, and a first inclined surface is provided on the limiting plate. A second inclined surface is provided on one side of the top of the clamping block. When the clamping block presses the counter-attack hammer against the first plate, the groove is located on the side of the first plate opposite to the second plate, and the second inclined surface of the clamping block is in contact with the first inclined surface of the second plate.

[0008] Preferably, the limiting plate is provided with a first bolt hole, the clamping block is provided with a second bolt hole, and a nut is provided on the clamping block below the second bolt hole, with the nut being coaxially arranged with the second bolt hole.

[0009] Preferably, a sliding plate is provided on the second bracket, a nut is fixedly connected to the sliding plate, the sliding plate and the second bracket are axially slidably connected in the second bolt hole, and an elastic body is provided between the nut and the clamping block. The elastic body is used to support the sliding plate so that the nut is away from the clamping block.

[0010] Preferably, one end of the elastomer is fixedly connected to the first connecting plate, and the other end of the elastomer is fixedly connected to the second connecting plate. The first connecting plate is fixedly connected to the clamping block, and the second connecting plate is fixedly connected to the nut.

[0011] Preferably, the protrusions are arranged intermittently on the impact hammer, with gaps between the protrusions for inserting clamping blocks.

[0012] Preferably, the second plate is also spaced apart, and the position of the second plate corresponds to the gap between the protrusions.

[0013] Preferably, the two sides of the impact hammer are provided with protrusions, and the two protrusions are respectively matched with the grooves on the first bracket. The two protrusions are respectively engaged with the grooves on the first bracket to realize the replacement of the end of the impact hammer.

[0014] The beneficial effects of this utility model are: the two ends of the impact hammer of this impact crusher are replaceable, the impact hammer is pressed against the first bracket by the clamping block, and the clamping block can be disassembled by bolts, making the replacement method simple; at the same time, the bottom of the clamping block of this impact crusher hammer is equipped with a nut, so when disassembling and assembling the bolt, you only need to turn the bolt to tighten and loosen the bolt, making the disassembly and assembly of the bolt convenient and allowing for more efficient replacement of the impact hammer. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the impact crusher's hammer plate;

[0016] Figure 2 This is a schematic diagram of the structure of the first support of the impact crusher hammer.

[0017] Figure 3 This is a schematic diagram of the structure at point A of the first support of the impact crusher hammer.

[0018] Figure 4 This is a schematic diagram of the side structure of the hammer plate of this impact crusher.

[0019] Figure 5 This is a schematic diagram of the side view of the second plate of the impact crusher hammer.

[0020] In the diagram: 1. Rotary power shaft; 2. First support; 3. Hammer; 4. Clamping block; 5. Bolt; 6. Nut; 7. Second support;

[0021] 21. First plate; 22. Second plate; 23. Pressing space; 24. First bolt hole; 31. First protruding plate; 32. First protruding strip; 33. Second protruding plate; 34. Second protruding strip; 71. Slide plate; 72. Elastic body; 721. First connecting plate; 722. Second connecting plate. Detailed Implementation

[0022] 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.

[0023] Reference Figure 1-2 A hammer plate for an impact crusher, reference Figure 1 The system includes a rotating power shaft 1, which is rotatably connected to an impact crusher. The impact crusher is equipped with a rotary motor that drives the rotating power shaft 1. Multiple impact hammers 3 are mounted on the rotating power shaft 1, evenly distributed around its axis of rotation on the side of the shaft. The impact hammers 3 work in conjunction with the impact plates of the impact crusher, rotating to impact and crush materials.

[0024] The aforementioned rotating power shaft 1 has multiple first brackets 2 on its side, which are used to mount the counter-attack hammer 3. (See reference) Figure 2 The first support 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 counterattack hammer 3.

[0025] Furthermore, the two ends of the counter-attack hammer 3 can each serve as hammerheads, and the two ends of the counter-attack hammer 3 are respectively provided with protruding plates, including a first protruding plate 31 and a second protruding plate 33. The two sides of the counter-attack hammer 3 are respectively provided with protruding strips, including a first protruding strip 32 and a second protruding strip 34. The position of the first protruding strip 32 is on the same side as the first protruding plate 31, and the position of the second protruding strip 34 is on the same side as the second protruding plate 33. The first plate 21 of the first support 2 is provided with grooves for accommodating the protruding strips. When the end where the first protruding plate 31 is located is used as a hammerhead, the first protruding strip 32 engages with the groove on the first plate 21; when the end where the second protruding plate 33 is located is used as a hammerhead, the second protruding strip 34 engages with the groove on the first plate 21.

[0026] refer to Figure 2 In this embodiment, the counter-attack hammer 3 is pressed by the clamping block 4. The clamping block 4 is used to press the counter-attack hammer 3 against the first plate 21 to achieve the pressing and limiting of the counter-attack hammer 3. The clamping block 4 is located inside the clamping space 23 to press the counter-attack hammer 3. The top of the second plate 22 is provided with a limiting plate extending into the clamping space 23. The limiting plate is provided with a first inclined surface. The top side of the clamping block 4 is provided with a second inclined surface. When the clamping block 4 presses the counter-attack hammer 3 against the first plate 21, the second inclined surface of the clamping block 4 is in contact with the first inclined surface of the second plate 22.

[0027] Furthermore, the clamping block 4 is connected to the second plate 22 by bolts 5. A second bracket 7 is provided at the bottom of the clamping block 4, which is used to install a nut 6 that matches the bolt 5. A first bolt hole 24 is provided on the limiting plate of the first plate 21, and a through second bolt hole is provided on the clamping block 4. The bolt 5 passes through the first bolt hole 24 and the second bolt hole and is threadedly connected to the nut 6, thus completing the connection between the clamping block 4 and the second plate 22.

[0028] refer to Figure 3 Nut 6 is fixedly connected to slide plate 71. Nut 6 is located below the second bolt hole of clamping block 4, and nut 6 is coaxially arranged with the second bolt hole. Slide plate 71 and second bracket 7 are axially slidably connected to the second bolt hole. Neither nut 6 nor slide plate 71 rotates relative to slide plate 71. An elastic body 72, which is a spring, is provided between nut 6 and clamping block 4. The elastic body 72 is used to support slide plate 71 so that nut 6 is away from clamping block 4, and nut 6 is in the lower limit position.

[0029] When installing the clamping block 4, the bolt 5 is inserted into the first bolt hole 24 and the second bolt hole and nut 6. The bottom of the bolt 5 enters the nut 6 and matches it. By rotating the bolt 5, the bolt 5 and nut 6 are threadedly connected. Since the nut 6 does not rotate, it moves upward relative to the bolt 5 until the installation of the clamping block 4 is completed. At the same time, the nut 6 compresses the elastic body 72, which can be used to prevent loosening between the bolt 5 and the nut 6.

[0030] When replacing the impact hammer 3, if the clamping block 4 needs to be removed, loosen bolt 5 and move nut 6 away from the clamping block 4 until bolt 5 and nut 6 separate. Then remove the clamping block 4, flip the impact hammer 3 over, and replace the hammer head. Since nut 6 is installed below the clamping block 4, it is unnecessary to handle nut 6 when installing and removing the clamping block 4, simplifying the disassembly process. (Reference) Figure 2 and Figure 5 After the counter-attack hammer 3 is flipped over, the clamping block 4 is inserted upward into the gap between the protrusions. After the second inclined surface of the clamping block 4 is in contact with the first inclined surface of the limiting plate, the bolt 5 is inserted into the first bolt hole 24 of the second plate 22 and the second bolt hole of the clamping block 4 until the bolt 5 is completely tightened.

[0031] In this embodiment, one end of the elastic body 72 is fixedly connected to the first connecting plate 721, and the other end of the elastic body 72 is fixedly connected to the second connecting plate 722. The first connecting plate 721 is fixedly connected to the clamping block 4, and the second connecting plate 722 is fixedly connected to the nut 6.

[0032] refer to Figure 4 The protruding ribs are intermittently arranged on the impact hammer 3, with gaps between them for inserting the clamping block 4. For convenient installation of the clamping block 4, refer to... Figure 5 The second plate 22 is also spaced apart, and the position of the second plate 22 corresponds to the gap between the protrusions. The clamping block 4 enters the clamping space 23 through the gap between the second plates 22 or is taken out of the clamping space 23.

[0033] 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 hammer plate for an impact crusher, comprising a rotating power shaft, wherein a plurality of impact hammer plates are disposed on the rotating power shaft, the impact hammer plates being evenly distributed around the rotating power shaft as a center, characterized in that, The side of the rotating power shaft is provided with a plurality of first brackets for mounting the counterattack hammer. Each first bracket is provided with a clamping block for pressing the counterattack hammer. At least one side of the counterattack hammer is provided with a protrusion. The first bracket is provided with a groove for accommodating the protrusion. The clamping block is used to press the counterattack hammer from the opposite side of the protrusion to achieve pressing and limiting of the counterattack hammer. The clamping block is connected to the first bracket by bolts. A second bracket is provided at the bottom of the clamping block. The second bracket is used to install a nut that matches the bolt. The nut and the second bracket are slidably connected in the axial direction of the bolt.

2. The impact crusher hammer according to claim 1, characterized in that, The first support includes a first plate and a second plate disposed opposite to each other, with a clamping space between the first plate and the second plate. The clamping space is used to accommodate a clamping block and a counter-attack hammer. A limiting plate extending into the clamping space is provided on the top of the second plate, and a first inclined surface is provided on the limiting plate. A second inclined surface is provided on one side of the top of the clamping block. When the clamping block presses the counter-attack hammer against the first plate, the groove is located on the side of the first plate and the second plate opposite to each other, and the second inclined surface of the clamping block is in contact with the first inclined surface of the second plate.

3. The impact crusher hammer according to claim 2, characterized in that, The limiting plate is provided with a first bolt hole, the clamping block is provided with a second bolt hole, and a nut is provided on the clamping block below the second bolt hole. The nut is coaxially arranged with the second bolt hole.

4. The impact crusher hammer according to claim 3, characterized in that, The second bracket is provided with a sliding plate, and the nut is fixedly connected to the sliding plate. The sliding plate and the second bracket are axially slidably connected in the second bolt hole. An elastic body is provided between the nut and the clamping block. The elastic body is used to support the sliding plate so that the nut is away from the clamping block.

5. The impact crusher hammer according to claim 4, characterized in that, One end of the elastic body is fixedly connected to a first connecting plate, and the other end of the elastic body is fixedly connected to a second connecting plate. The first connecting plate is fixedly connected to a clamping block, and the second connecting plate is fixedly connected to a nut.

6. The impact crusher hammer according to claim 5, characterized in that, The protruding strips are intermittently arranged on the impact hammer, and there are gaps between the protruding strips for inserting the clamping block.

7. The impact crusher hammer according to claim 6, characterized in that, The second plate is also spaced apart, and the position of the second plate corresponds to the gap between the protrusions.

8. The impact crusher hammer according to any one of claims 1-7, characterized in that, The counter-attack hammer has protrusions on both sides, and the two protrusions are respectively matched with the grooves on the first bracket. The two protrusions are combined with the grooves on the first bracket to realize the replacement of the end of the counter-attack hammer.

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