Moving cutter assembly and crusher

Abstract

The utility model discloses a movable cutter assembly and a crusher. The movable cutter assembly comprises a cutter holder, a movable cutter, a limiting structure and a locking assembly, and the cutter holder is provided with a first through hole; the movable cutter is arranged at one end, in the axial direction of the first through hole, of the cutter holder, a second through hole is formed in the movable cutter, and the second through hole is used for being communicated with the first through hole; the limiting structure comprises a limiting protruding block and a limiting groove, the limiting protruding block is arranged on the cutter holder, the limiting groove is formed in the first side wall, facing the cutter holder, of the movable cutter and the second side wall, deviating from the cutter holder, of the movable cutter, and the limiting protruding block can be clamped in the limiting groove with an opening facing the cutter holder. The movable cutter is limited to rotate relative to the cutter holder; the locking assembly is used for being arranged in the first through hole and the second through hole in a penetrating mode so that the movable cutter can be locked to the cutter holder. According to the movable cutter assembly, the recycling times can be multiplied, and the production cost of crushing equipment is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of crushing equipment technology, and in particular to a crusher tool assembly and a crusher. Background Technology

[0002] Crushers are used to crush large raw materials to the required size by shearing motion between the crushing shaft and the casing. Because the size, hardness, toughness, and shearing angle of the input raw materials are highly random, the material requires multiple shearing operations, resulting in rapid wear of the moving blades, short service life, and frequent replacement. This inevitably leads to high operating costs for crushing equipment. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a moving blade assembly with a long service life.

[0004] This utility model also proposes a crusher using this moving blade assembly.

[0005] According to a first aspect of the present invention, a movable blade assembly includes a blade holder, a movable blade, a limiting structure, and a locking assembly. The blade holder has a first through hole; the movable blade is disposed at one end of the blade holder along the axial direction of the first through hole, and the movable blade has a second through hole for communicating with the first through hole; the limiting structure includes a limiting protrusion and a limiting groove, the limiting protrusion being disposed on the blade holder, and the limiting groove being disposed on a first sidewall of the movable blade facing the blade holder and a second sidewall of the movable blade away from the blade holder; the limiting protrusion can be engaged with the limiting groove with its opening facing the blade holder to restrict the movable blade from rotating relative to the blade holder; the locking assembly is disposed through the first through hole and the second through hole to lock the movable blade to the blade holder.

[0006] The moving blade assembly according to the embodiments of the present invention has at least the following beneficial effects: The moving blade assembly of the present invention hides the limiting structure in the mating surface of the blade holder and the moving blade. The limiting structure is not affected by the wear of the moving blade during shearing. There is no need to give up the use of some cutting edges for the mechanical limiting of the moving blade. With a slight increase in the processing cost of the moving blade assembly, the number of cycles of the moving blade assembly is increased many times, and the production cost of the crushing equipment is greatly reduced.

[0007] According to some embodiments of the present invention, the limiting protrusion is arranged circumferentially around the first through hole, the limiting groove on the first sidewall and the limiting groove on the second sidewall are symmetrically arranged and extend along the axial direction of the first through hole, and the second through hole penetrates the bottom wall of the limiting groove.

[0008] According to some embodiments of the present invention, the cross-sectional shape of the limiting protrusion is non-circular along the radial direction of the first through hole, and the cross-sectional shape of the limiting groove is adapted to the cross-sectional shape of the limiting protrusion.

[0009] According to some embodiments of the present invention, the cross-sectional shape of the limiting protrusion is a regular polygon along the radial direction of the first through hole, and the cross-sectional shape of the limiting groove is adapted to the cross-sectional shape of the limiting protrusion.

[0010] According to some embodiments of the present invention, the cross-sectional shape of the moving blade is a regular polygon along the radial direction of the first through hole, and the moving blade has multiple cutting edges, which are located on the corresponding edges of the moving blade.

[0011] According to some embodiments of the present invention, the locking assembly includes a bolt and a cover. The cover has a threaded hole and is at least partially accommodated in the limiting groove opposite to the tool holder. The bolt passes through the first through hole and the second through hole and is threadedly connected to the cover.

[0012] According to some embodiments of the present invention, the locking assembly includes a bolt and a nut. The cross-sectional shape of the bolt head is adapted to the cross-sectional shape of the limiting groove and is at least partially accommodated in the limiting groove away from the tool holder. The bolt passes through the first through hole and the second through hole and is threadedly connected to the nut.

[0013] According to some embodiments of this utility model, a washer is fitted onto the bolt.

[0014] The crusher according to a second aspect of the present invention includes a moving blade assembly as described in any of the preceding claims.

[0015] The crusher according to the embodiments of the present invention has at least the following beneficial effects: the moving blade assembly of the crusher of the present invention hides the limiting structure in the mating surface of the blade holder and the moving blade. The limiting structure is not affected by the wear of the moving blade during shearing. There is no need to give up the use of some cutting angles for the mechanical limiting of the moving blade. With a slight increase in the processing cost of the moving blade assembly, the number of cycles of the moving blade assembly is increased many times, and the production cost of the crushing equipment is greatly reduced.

[0016] According to some embodiments of the present invention, the cutter holder is welded to the cutter roller of the crusher.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0019] Figure 1 This is a perspective view of a moving blade assembly according to an embodiment of the present invention;

[0020] Figure 2 This is a cross-sectional view of a moving blade assembly according to an embodiment of the present invention;

[0021] Figure 3 This is an exploded perspective view of the moving blade assembly according to an embodiment of the present invention;

[0022] Figure 4 This is another view and exploded perspective view of the moving blade assembly of one embodiment of the present invention.

[0023] Icon labels:

[0024] Tool holder 100, first through hole 110;

[0025] Moving tool 200, second through hole 210, first sidewall 220, second sidewall 230, cutting edge 240;

[0026] Locking assembly 300, bolt 310, cover 320, threaded hole 321, washer 330;

[0027] Limiting structure 400, limiting protrusion 410, limiting groove 420. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0029] In the description of this utility model, it should be understood that the orientation descriptions, such as left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features or the order of the technical features.

[0031] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0032] Reference Figures 1 to 4 The moving blade assembly proposed in the first aspect of this utility model includes a blade holder 100, a moving blade 200, a limiting structure 400, and a locking assembly 300.

[0033] The cutter holder 100 has a first through hole 110, and the moving cutter 200 has a second through hole 210. The moving cutter 200 is located at one end of the cutter holder 100 along the axial direction of the first through hole 110. The second through hole 210 communicates with the first through hole 110. The moving cutter 200 has a first sidewall 220 and a second sidewall 230, which are opposite to each other. In the initial state, after the moving cutter 200 of the moving cutter assembly is assembled with the cutter holder 100, the sidewall facing the cutter holder 100 is designated as the first sidewall 220, and the sidewall facing away from the cutter holder 100 is designated as the second sidewall 230. The moving cutter 200 has multiple cutting edges 240. When the crusher is in operation, one cutting edge 240 performs the crushing function, while the other cutting edges 240 are idle. When the cutting edge 240 that performs the crushing function becomes worn, the moving blade 200 can be rotated by a predetermined angle or its direction can be reversed. That is, the moving blade 200 can be rotated by a predetermined angle around the axis of the first through hole 110, or the first side wall 220 can be turned away from the tool holder 100 and the second side wall 230 can be turned towards the tool holder 100, thereby converting the idle cutting edge 240 to the crushing position, and then using the idle cutting edge to crush the material, thus increasing the number of cycles of the moving blade 200.

[0034] The limiting structure 400 includes a limiting protrusion 410 and a limiting groove 420. The limiting protrusion 410 is disposed on the side wall of the tool holder 100. There are two limiting grooves 420, one of which is disposed on the first side wall 220 and the other of which is disposed on the second side wall 230. In the initial state, the limiting protrusion 410 is engaged in the limiting groove 420 of the first side wall 220. The moving tool 200 is then pulled and fixed on the tool holder 100 by the locking assembly 300 passing through the first through hole 110 and the second through hole 210, thereby restricting the rotation of the moving tool 200 relative to the tool holder 100. When the cutting edge 240 of the moving blade 200 is worn and needs to be replaced, loosen the locking assembly 300, rotate the moving blade 200 around the axis of the second through hole 210 by a predetermined angle, and then tighten the locking assembly 300. The other cutting edge 240 of the moving blade 200 can then be used to crush materials. When both cutting edges 240 on one side of the moving blade 200 are worn, disassemble the locking assembly 300, remove the moving blade 200, rotate it, and then reassemble the moving blade 200 onto the tool holder 100. The second sidewall 230 of the moving blade 200 is oriented toward the blade holder 100, and the limiting protrusion 410 is engaged in the limiting groove 420 of the second sidewall 230. Then, the moving blade 200 is pulled and fixed to the blade holder 100 by the locking assembly 300 passing through the first through hole 110 and the second through hole 210, restricting the rotation of the moving blade 200 relative to the blade holder 100, thereby converting the idle cutting edge 240 to the crushing position, and then using the idle cutting edge to crush the material.

[0035] Therefore, the moving blade assembly of this utility model hides the limiting structure 400 on the mating surface between the blade holder 100 and the moving blade 200. The limiting structure 400 is not affected by the wear of the moving blade 200 during shearing. There is no need to give up some cutting edge usage opportunities for the mechanical limiting of the moving blade 200. With a slight increase in the processing cost of the moving blade assembly, the number of cycles of the moving blade assembly is increased many times, and the production cost of the crushing equipment is greatly reduced.

[0036] Reference Figure 2 , Figure 3 , Figure 4 In some embodiments, the limiting protrusion 410 is arranged circumferentially around the first through hole 110 and extends axially along the first through hole 110. The limiting groove 420 on the first side wall 220 and the limiting groove 420 on the second side wall 230 are symmetrically arranged, and the second through hole 210 penetrates the bottom wall of the limiting groove 420. The limiting grooves 420 symmetrically arranged on both side walls can ensure that the limiting interface is consistent and reliable when the moving tool 200 is used in rotational or flipping cycles. Therefore, when the moving tool 200 is turned, the intact cutting edge 240 can be easily and accurately turned to the cutting position, improving the efficiency of turning the cutting edge 240 of the moving tool 200 and reducing maintenance time.

[0037] It is understood that two or more limiting grooves 420 can be provided on both the first sidewall 220 and the second sidewall 230. The number of limiting grooves 420 on each sidewall can be determined according to the number of cutting edges 240 of the moving blade 200 relative to that sidewall. The two or more limiting grooves 420 are arranged around the axis of the second through hole 210, and one or more limiting protrusions 410 can be provided. When a limiting protrusion 410 is provided, the limiting protrusion 410 can be engaged in the corresponding limiting groove 420. When multiple limiting protrusions 410 are provided, the number of limiting protrusions 410 is the same as the number of limiting grooves 420 provided on each sidewall of the moving blade 200, and the limiting protrusions 410 and the limiting grooves 420 are arranged in a one-to-one correspondence. When the moving blade 200 rotates to a predetermined angle, the limiting protrusions 410 can be engaged in the corresponding limiting grooves 420 one-to-one.

[0038] Reference Figure 3 , Figure 4 In some embodiments, the cross-sectional shape of the limiting protrusion 410 along the radial direction of the first through hole 110 is non-circular, and the cross-sectional shape of the limiting groove 420 is adapted to the cross-sectional shape of the limiting protrusion 410. By setting the cross-sectional shapes of the limiting protrusion 410 and the limiting groove 420 to be non-circular, the purpose of restricting the rotation of the moving tool 200 relative to the tool holder 100 can be achieved.

[0039] Specifically, refer to Figure 3 , Figure 4 In this specific embodiment, along the radial direction of the first through hole 110, the cross-sectional shape of the limiting protrusion 410 is a regular polygon, and the cross-sectional shape of the limiting groove 420 is adapted to the cross-sectional shape of the limiting protrusion 410.

[0040] It is understandable that the cross-sectional shape of the limiting protrusion 410 and the limiting groove 420 can also be pentagonal, hexagonal, etc., and there are no restrictions on these.

[0041] Reference Figure 3 , Figure 4 In some embodiments, the cross-sectional shape of the moving blade 200 is adapted to the cross-sectional shape of the limiting protrusion 410 along the radial direction of the first through hole 110. That is, the cross-sectional shape of the moving blade 200 is set as a regular polygon, and the moving blade 200 has a plurality of cutting edges 240, which are located on the corresponding edges of the moving blade 200.

[0042] Specifically, in the embodiment shown in the figure, the cross-sectional shape of the moving blade 200 is set as a regular quadrilateral, and the moving blade 200 has four cutting edges 240, which are located on corresponding edges of the moving blade 200. When the limiting protrusion 410 engages with the limiting groove 420 of the first sidewall 220 for limiting, the cutting edge 240 of the moving blade 200 can rotate four times. When the limiting protrusion 410 engages with the limiting groove 420 of the second sidewall 230 for limiting, the cutting edge 240 of the moving blade 200 can rotate four times again. Thus, through the limiting structure 400 configured above, the moving blade 200, which can only be used four times in the prior art, is increased to eight times of use in this invention. With a slight increase in the processing cost of the moving blade assembly, the number of times the blade can be used is multiplied, and the production cost of the equipment is greatly reduced.

[0043] It should be noted that, under the premise of satisfying the crushing effect of the crusher, the shape of the moving blade 200 can be set to other regular polygons, such as regular pentagons, regular hexagons, etc. The shapes of the limiting protrusion 410 and the limiting groove 420 are correspondingly set to regular polygons such as regular pentagons and regular hexagons, so as to increase the number of times the blade particles are recycled and reduce the production cost of the equipment.

[0044] Reference Figure 2 , Figure 3 , Figure 4 In some embodiments, the locking assembly 300 includes a bolt 310 and a cover 320. The cover 320 has a threaded hole 321 and is at least partially accommodated in a limiting groove 420 away from the cutter holder 100. The bolt 310 passes through the first through hole 110 and the second through hole 210 and is threadedly connected to the cover 320, thereby tightening and fixing the moving cutter 200 to the cutter holder 100. Furthermore, the cover 320 blocks the limiting groove 420, which can prevent material impurities from contaminating or intruding into the groove during the operation of the crusher, so as to protect the limiting groove 420 from wear and deformation due to impurities, so that the locking assembly 300 can achieve the expected locking effect. Moreover, the cover 320 is partially or completely accommodated in the limiting groove 420, which can prevent the cover 320 from excessive wear, so as to ensure the long-term effectiveness of the locking assembly 300 and prevent the moving cutter 200 from rotating and loosening during the crushing process.

[0045] It should be noted that in some embodiments, the locking assembly 300 includes a bolt 310 and a nut. The cross-sectional shape of the head of the bolt 310 is adapted to the cross-sectional shape of the limiting groove 420 and is at least partially accommodated in the limiting groove 420 away from the tool holder 100. The bolt 310 passes through the first through hole 110 and the second through hole 210 and is threadedly connected to the nut.

[0046] Reference Figure 2 , Figure 3In some embodiments, a washer 330 is provided on the bolt 310. The washer 330 is used to increase the force-bearing area of ​​the bolt 310, disperse the pressure, and avoid damaging the end face of the first through hole 110.

[0047] The crusher according to a second aspect of the present invention includes a moving blade assembly as described above, wherein the blade holder 100 of the moving blade assembly is welded to the cutter roller of the crusher.

[0048] The moving blade assembly of this invention conceals the limiting structure 400 within the mating surface between the blade holder 100 and the moving blade 200. The limiting structure 400 is not affected by wear during shearing by the moving blade 200, and there is no need to sacrifice some cutting edge usage opportunities for the mechanical limiting of the moving blade 200. With a slight increase in the processing cost of the moving blade assembly, the number of cycles of the moving blade assembly is multiplied, significantly reducing the production cost of the crushing equipment.

[0049] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A moving blade assembly, characterized in that, include: The tool holder has a first through hole; A movable blade is located at one end of the blade holder along the axial direction of the first through hole. The movable blade is provided with a second through hole, which is used to communicate with the first through hole. The limiting structure includes a limiting protrusion and a limiting groove. The limiting protrusion is disposed on the tool holder, and the limiting groove is disposed on the first side wall of the moving tool facing the tool holder and the second side wall of the moving tool away from the tool holder. The limiting protrusion can be engaged in the limiting groove with the opening facing the tool holder to restrict the moving tool from rotating relative to the tool holder. A locking assembly is provided through the first through hole and the second through hole to lock the moving blade to the blade holder.

2. The moving blade assembly according to claim 1, characterized in that, The limiting protrusion is arranged circumferentially around the first through hole, the limiting groove on the first sidewall and the limiting groove on the second sidewall are symmetrically arranged and extend along the axial direction of the first through hole, and the second through hole penetrates the bottom wall of the limiting groove.

3. The moving blade assembly according to claim 1, characterized in that, Along the radial direction of the first through hole, the cross-sectional shape of the limiting protrusion is non-circular, and the cross-sectional shape of the limiting groove is adapted to the cross-sectional shape of the limiting protrusion.

4. The moving blade assembly according to claim 2, characterized in that, Along the radial direction of the first through hole, the cross-sectional shape of the limiting protrusion is a regular polygon, and the cross-sectional shape of the limiting groove is adapted to the cross-sectional shape of the limiting protrusion.

5. The moving blade assembly according to claim 4, characterized in that, Along the radial direction of the first through hole, the cross-sectional shape of the moving blade is a regular polygon, and the moving blade has multiple cutting edges, which are located on the corresponding edges of the moving blade.

6. The moving blade assembly according to claim 1, characterized in that, The locking assembly includes a bolt and a cover. The cover has a threaded hole and is at least partially accommodated in the limiting groove opposite to the tool holder. The bolt passes through the first through hole and the second through hole and is threadedly connected to the cover.

7. The moving blade assembly according to claim 1, characterized in that, The locking assembly includes a bolt and a nut. The cross-sectional shape of the bolt head is adapted to the cross-sectional shape of the limiting groove and is at least partially accommodated in the limiting groove opposite to the tool holder. The bolt passes through the first through hole and the second through hole and is threadedly connected to the nut.

8. The moving blade assembly according to claim 6 or 7, characterized in that, A washer is fitted onto the bolt.

9. A crusher, characterized in that, Includes the moving blade assembly as described in any one of claims 1 to 8.

10. The crusher according to claim 9, characterized in that, The cutter holder is welded to the cutter roller of the crusher.

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