Detachable crushing tooth for crusher

By designing detachable crushing teeth, the problem of the inability to quickly replace toothed ring crushing teeth is solved, enabling rapid replacement and stable connection of crushing teeth, reducing maintenance costs and time, and adapting to diverse working conditions.

CN223697893UActive Publication Date: 2025-12-23中煤科工集团唐山研究院有限公司 +1
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Patent Information

Application Number
CN202422998299.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-05
Publication Date
2025-12-23
Estimated Expiration
2034-12-05

AI Technical Summary

Technical Problem

The toothed ring crushing teeth of existing coarse crushing and classifying crushers cannot be quickly replaced on-site after wear, resulting in high replacement costs and long replacement times. The toothed cap structure is complex and difficult to manufacture.

Method used

A detachable crusher tooth is designed, including a toothed ring seat and a detachable crusher tooth head, which can be quickly replaced by bolts, slots or special connectors. Combined with the stable connection of wedges and fasteners, the installation and replacement process of the crusher tooth is simplified.

Benefits of technology

It enables rapid replacement of the crusher teeth, reduces maintenance costs and time, improves equipment operating efficiency, simplifies spare parts management, and adapts to different working conditions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of crushers, and provides a detachable crushing tooth for a crusher, which comprises a tooth ring seat provided with a plurality of mounting surfaces, and the plurality of mounting surfaces are circumferentially arranged along the periphery of the tooth ring seat; the bottoms of the crushing tooth heads are provided with matching surfaces, the crushing tooth heads are detachably arranged on the mounting surfaces through the matching surfaces, and the matching surfaces correspond to the mounting surfaces one to one. By means of the technical scheme, the problem that in the prior art, after a gear ring type whole is damaged, on-site rapid replacement cannot be achieved is solved.
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Description

Technical Field

[0001] This utility model relates to the field of crusher technology, specifically to a detachable crushing tooth for a crusher. Background Technology

[0002] Coarse crushing and classifying crushers are mainly used for primary crushing of large materials. They are designed for large feed particle sizes and high crushing intensity. The crushing teeth are the main components directly crushing the material and are also consumable parts. Currently, the toothed rollers of coarse crushing and classifying crushers mainly have two structures: toothed ring type and toothed cap type. The toothed ring type is generally a one-piece cast structure, which is difficult to replace after wear. It requires disassembling the toothed roller from the equipment to replace the toothed ring. In most cases, on-site replacement is not possible, and it must be returned to the factory for major repairs, resulting in high replacement costs and long replacement times. The toothed cap type has a complex structure, requires high assembly precision, and is difficult to manufacture. Utility Model Content

[0003] This invention proposes a detachable crushing tooth for a crusher, which solves the problem in related technologies where the toothed ring type cannot be quickly replaced on-site after overall damage.

[0004] The technical solution of this utility model is as follows:

[0005] A detachable crushing tooth for a crusher, comprising:

[0006] A toothed ring seat, the toothed ring seat having a plurality of mounting surfaces, the plurality of mounting surfaces being arranged circumferentially around the toothed ring seat;

[0007] Several crushing teeth are provided, each crushing tooth having a mating surface at its bottom. The crushing teeth are detachably mounted on the mounting surface via the mating surface, and the mating surface and the mounting surface correspond one-to-one.

[0008] As a further technical solution, the toothed ring seat is a hexagonal toothed ring, and the crushing tooth head includes:

[0009] The tooth head and the mounting base are provided, wherein the tooth head is disposed on the top of the mounting base and the bottom of the mounting base has the mating surface.

[0010] As a further technical solution, the mounting base is a crescent-shaped mounting base, and several mounting bases and the toothed ring seat form a cylindrical roller. The mounting base has a mounting hole and further includes:

[0011] Fastener 1 is disposed in the mounting hole 1 and penetrates the mating surface and the mounting surface, and is used to connect the mounting base and the toothed ring seat.

[0012] As a further technical solution, there are several mounting holes, and the mounting holes are provided on both sides of the tooth head.

[0013] As a further technical solution, the cross-section of the tooth head is trapezoidal, and the edge of the tooth head has a breaking edge.

[0014] As a further technical solution, the top of the mounting base also has a wedge groove, the top edge of the tooth head has the breaking blade, the bottom of the tooth head has a wedge block, and the tooth head is set in the wedge groove through the wedge block.

[0015] As a further technical solution, the wedge groove has a triangular cross-section, and the inner wall of the wedge groove has a clamping surface and an inclined surface, both of which abut against the wedge block, and further includes:

[0016] Fastener 2 is disposed inside the wedge block, connecting the wedge block and the mounting base, and the fastener 2 penetrates the inclined surface.

[0017] As a further technical solution, the wedge has a mounting hole one, the fastener two is disposed in the mounting hole one, one end of the fastener two is threadedly connected to the mounting seat, and the width of the mounting hole one is greater than the width of the fastener two.

[0018] As a further technical solution, the side of the wedge block that abuts against the inclined surface is a sliding mounting surface, the sliding mounting surface has a mounting groove, the inclined surface has a sliding groove, the mounting groove communicates with the sliding groove, and further includes:

[0019] A limiting block, wherein both ends of the limiting block are located within the mounting groove and the sliding groove, respectively;

[0020] An elastic element is disposed within the slide groove. The two ends of the elastic element are respectively connected to the limiting block and the mounting base. The elastic element provides the limiting block with a force to drive the wedge block to slide away from the wedge groove.

[0021] As a further technical solution, the length direction of the groove is parallel to the length direction of the inclined surface.

[0022] The working principle and beneficial effects of this utility model are as follows:

[0023] 1. This application achieves rapid replacement of the crushing tooth head through innovative design of the crushing tooth ring structure and its components, and the adjacent crushing teeth cooperate with each other to form a ring and are installed on the tooth seat, which improves the stress condition of the connecting screw and increases the load-bearing capacity of a single crushing tooth head.

[0024] 2. This application separates the crushing tooth head and tooth seat design, so there is no need to disassemble the crushing roller during replacement. Only the connecting screws and bolts need to be removed to replace the crushing tooth, which is convenient and simple. In addition, the use of threaded protective sleeve can reduce the damage of the connecting screws to the tooth seat and improve the reliability of the connection. Attached Figure Description

[0025] The preferred embodiments will be described below in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this utility model.

[0026] Figure 1 This is a schematic diagram of a detachable crushing tooth structure for a crusher according to the present invention;

[0027] Figure 2 This is a schematic diagram of the detachable crushing tooth structure for a crusher according to the present invention;

[0028] Figure 3 This is a first-view structural schematic diagram of a detachable crushing tooth for a crusher according to the present invention;

[0029] Figure 4 This is a first-view structural diagram of the crushing tooth head in this utility model;

[0030] Figure 5 This is a schematic diagram of the second-view structure of the crushing tooth in this utility model;

[0031] Figure 6 This is a partial sectional view of the crushing tooth head in this utility model;

[0032] Figure 7 This utility model Figure 6 Enlarged view of section A.

[0033] In the diagram: 1. Gear ring seat; 101. Mounting surface; 2. Crushing tooth head; 201. Mating surface; 202. Tooth head; 203. Mounting seat; 204. Mounting hole one; 205. Crushing blade; 206. Wedge groove; 207. Wedge block; 208. Clamping surface; 209. Inclined surface; 210. Sliding mounting surface; 211. Mounting groove; 212. Slide groove; 3. Columnar roller; 4. Fastener one; 5. Fastener two; 6. Limiting block; 7. Elastic element. Detailed Implementation

[0034] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0035] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0036] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0038] Reference Figures 1-7 The first embodiment of this utility model proposes a detachable crushing tooth for a crusher, comprising: a toothed ring seat 1, the toothed ring seat 1 having a plurality of mounting surfaces 101 arranged around the circumference of the toothed ring seat 1; a plurality of crushing tooth heads 2, the bottom of the crushing tooth head 2 having a mating surface 201, the crushing tooth head 2 being detachably mounted on the mounting surface 101 through the mating surface 201, the mating surface 201 and the mounting surface 101 corresponding one-to-one.

[0039] In this embodiment, during the initial assembly of the equipment, the toothed ring seat 1 needs to be precisely installed on the corresponding position of the crusher toothed roller to ensure its stability and that each mounting surface 101 is regular and without deviation. Subsequently, according to the material crushing requirements, the matching crushing tooth 2 is selected, and the bottom mating surface 201 of the crushing tooth 2 is carefully aligned with the mounting surface 101 of the toothed ring seat 1. The teeth are then firmly connected with bolts, slots, or special connectors to complete the crushing tooth assembly. During daily production inspections, if the crushing tooth 2 is found to be excessively worn or damaged and requires maintenance, the maintenance personnel can use simple tools, such as wrenches and screwdrivers, to quickly loosen the connectors, remove the damaged tooth, and replace it with a brand new or spare tooth, immediately restoring the equipment to normal operation.

[0040] Compared to traditional toothed ring crushers, this structure only requires replacing worn crushing teeth 2, eliminating the need for laborious factory returns, significantly reducing maintenance costs and greatly simplifying the replacement process and shortening replacement time. Crushing teeth 2 can be quickly disassembled and installed from the toothed ring seat 1, allowing operators to work efficiently on-site, significantly shortening the time required for equipment maintenance and replacement of toothed parts, improving the overall operating efficiency of the equipment, and reducing the impact of downtime on production progress. At the same time, enterprises can flexibly match crushing teeth 2 of different specifications and materials according to the changes in material hardness and particle size to meet the needs of diverse working conditions and material characteristics.

[0041] Of particular note is the design of the mating surface 201 and mounting surface 101 of the crushing tooth, which makes assembly intuitive and simple. In contrast, previous detachable methods often required professional technicians to spend time adjusting the assembly on-site due to the high precision required. The mating surface 201 and the mounting surface 101 correspond one-to-one, allowing operators to quickly find the correct position during assembly and ensuring that the installation angle and height of the crushing tooth 2 meet the design requirements. At the same time, combined with the matching fasteners or connectors, a stable mechanical structure is formed, which can withstand the strong impact and extrusion forces when crushing large pieces of material.

[0042] Furthermore, the toothed ring seat 1 is a hexagonal toothed ring, and the crushing tooth head 2 includes: a toothed head 202 and a mounting seat 203. The toothed head 202 is disposed on the top of the mounting seat 203, and the bottom of the mounting seat 203 has a mating surface 201.

[0043] In this embodiment, the crushing tooth 2 is further divided into a tooth head 202 and a mounting base 203. Compared with the complex tooth shape of a one-piece casting, the manufacturing difficulty is greatly reduced. The tooth head 202 focuses on bearing the impact of materials and completing the crushing function, and can be made of high wear-resistant material and machined separately. The mounting base 203 focuses on ensuring the connection stability with the tooth ring seat 1, and can be made of ordinary steel with good toughness and easy machining. This differentiated material selection and manufacturing process avoids the use of expensive special materials for one-piece casting, effectively controlling production costs. At the same time, since the tooth head 202 wears quickly, the company can reserve tooth head 202 spare parts of different specifications and materials based on past production experience. The mounting base 203 is relatively durable, and the reserve quantity does not need to be too large. This split spare parts management mode not only reduces the company's inventory capital occupation, but also enables precise allocation of the required spare parts in the event of sudden equipment failure, and rapid response to maintenance needs.

[0044] The tooth head 202 is arranged on the top of the mounting base 203, and the mating surface 201 is arranged on its bottom to adapt to normal working conditions and play a role. The specific form in which the two can be mated is, for example, bolt connection. Threaded holes are respectively opened on the mating surface 201 at the bottom of the mounting base 203 and the mounting surface 101 of the tooth ring seat 1. High-strength bolts are passed sequentially through the threaded holes of the mounting base 203 and the gear ring seat 1, and tightened to achieve a tight connection between the two. The gear head 202 and the mounting base 203 can be matched by a top slot and a bottom pin. The slot fits the shape of the gear head 202, and the pin passes through to fix it, ensuring the stability of the gear head 202. If the gear head 202 is damaged, it can be easily disassembled and replaced by pulling out the pin. Alternatively, a dovetail groove can be used. Dovetail groove structures are machined on each mounting surface 101 of the gear ring seat 1, and the bottom mating surface 201 of the mounting base 203 is made into a matching dovetail shape. Utilizing the unique wedge-tightening characteristic of the dovetail groove, the mounting base 203 is slid into the dovetail groove of the gear ring seat 1 to achieve precise positioning and firm self-locking.

[0045] Furthermore, the mounting base 203 is a crescent-shaped mounting base, and several mounting bases 203 and the toothed ring seat 1 form a cylindrical roller 3. The mounting base 203 has a mounting hole 204 and also includes a fastener 4. The fastener 4 is disposed in the mounting hole 204 and penetrates the mating surface 201 and the mounting surface 101 for connecting the mounting base 203 and the toothed ring seat 1.

[0046] In this embodiment, the mounting base 203 and the toothed ring seat 1 are connected by bolts, forming a stable connection. By providing mounting holes 204 on the mounting base 203 and equipping it with fasteners 4 that penetrate the mating surface 201 and the mounting surface 101 to connect the mounting base 203 and the toothed ring seat 1, an extremely stable mechanical connection structure is constructed. Fasteners 4 can effectively resist the violent impact generated when crushing large pieces of material, prevent the crushing teeth from loosening during operation, and facilitate disassembly.

[0047] Meanwhile, several mounting seats 203 and toothed ring seats 1 form a cylindrical roller 3, which is a key component of the coarse crushing and grading crusher. It is highly compatible with the internal cavity structure and transmission system of the equipment. After the material enters the crusher, the cylindrical roller 3 can rotate smoothly. It works in coordination with the fixed tooth plate (or another roller) by utilizing the crushing teeth distributed on its circumference. Therefore, the mounting seat 203 is designed as a crescent-shaped mounting seat 203, which can be connected to the toothed ring seat 1 through the protruding thread at the bottom. The cylindrical roller 3 is assembled by combining the crescent-shaped mounting seats 203 as units, which facilitates the modular design, production and assembly of the crusher. The factory prefabricates standardized toothed ring seats 1, crescent-shaped mounting seats 203 and other components, which can be quickly assembled on the equipment site.

[0048] Furthermore, there are several mounting holes 204, and mounting holes 204 are provided on both sides of the tooth head 202.

[0049] In this embodiment, the multiple mounting holes 204 make the connection between the tooth head 202 and the tooth ring seat 1 more stable and more impact-resistant. Specifically, two sets of mounting holes 204 are provided on both sides of the tooth head 202 to strengthen the fixation.

[0050] Furthermore, the cross-section of the tooth head 202 is trapezoidal, and the edge of the tooth head 202 has a breaking blade 205.

[0051] In this embodiment, the cross-section of the tooth head 202 is set as a trapezoid, which increases the contact area with the material. Combined with the sharp-edged crushing blade 205, it can efficiently bite into large pieces of material, enhance the shearing and extrusion effect, make the material crushed more thoroughly and the particle size more uniform, and improve the crushing efficiency. Specifically, the tooth head 202 is a regular trapezoid, and the sharp crushing blade 205 is finely crafted along its edge.

[0052] Furthermore, the mounting base 203 has a wedge groove 206 at its top, a breaking blade 205 at the top edge of the tooth head 202, and a wedge block 207 at the bottom of the tooth head 202. The tooth head 202 is set in the wedge groove 206 through the wedge block 207.

[0053] In this embodiment, the tooth head 202 and the mounting base 203 are connected by a wedge block 207 to form a stable connection, so that the tooth head 202 is accurately embedded in the mounting base 203. When the tooth head 202 is worn and needs to be replaced, the maintenance personnel only need to use simple tools to knock or pry the wedge block 207 to remove the tooth head 202 from the wedge groove 206.

[0054] Specific possible shapes and forms of wedges 207 include, for example, isosceles trapezoidal wedges 207, which are a common form, with both sides having the same angle of inclination, fitting the isosceles trapezoidal groove of the wedge groove 206. This symmetrical design facilitates even force distribution on both sides when embedded in the wedge groove 206, ensuring stable installation of the tooth head 202. Another example is dovetail wedges 207, which are narrow at the head and wide at the tail, corresponding to the wedge groove 206. Once the dovetail structure is wedged in, its special shape design creates a strong self-locking effect, with stability far exceeding that of ordinary wedges 207. The angle between the inclined surface 209 and the bottom surface of the wedge 207 is generally between 5° and 15°. If the angle is too small, the wedging effect is not obvious, and the tooth head 202 is prone to loosening. If the angle is too large, embedding into the wedge groove 206 is difficult, assembly is laborious, and it may even damage the parts.

[0055] Furthermore, the wedge groove 206 has a triangular cross-section, and the inner wall of the wedge groove 206 has a clamping surface 208 and an inclined surface 209. Both the clamping surface 208 and the inclined surface 209 abut against the wedge block 207. It also includes a second fastener 5, which is disposed inside the wedge block 207, connects the wedge block 207 and the mounting base 203, and the second fastener 5 penetrates the inclined surface 209.

[0056] In this embodiment, the triangular wedge groove 206 structure has good stability and mechanical bearing advantages. However, the frictional self-locking of the wedge block 207 and wedge groove 206 alone is not enough to completely resist the vibration and impact generated by the high-intensity operation of the crusher. Therefore, fastener 25 is added to further tighten the wedge block 207 and the mounting base 203 from the inside, which is like giving the connection structure "double insurance" and making up for the shortcomings of the mechanical connection.

[0057] Specifically, the triangular wedge groove 206, together with the clamping surface 208, the inclined surface 209, and the wedge block 207, are in close contact. Combined with the fastener 25 that penetrates the inclined surface 209, a multiple stabilizing mechanism is constructed. For example, the clamping surface 208 and the inclined surface 209 are in contact with the wedge block 207 to prevent it from swaying left and right. At the same time, the inclined surface 209 also facilitates the stable assembly of the wedge block 207 into the wedge groove 206 along the inclined surface 209 in the early stage, ensuring that the tooth head 202 remains motionless under extreme working conditions, greatly improving the stability of the crushing operation.

[0058] Furthermore, the wedge 207 has a mounting hole 204, and a fastener 5 is disposed in the mounting hole 204. One end of the fastener 5 is threadedly connected to the mounting base 203, and the width of the mounting hole 204 is greater than the width of the fastener 5.

[0059] In this embodiment, when assembling the wedge 207, first prepare the mounting base 203, check its top triangular wedge groove 206, and ensure that the clamping surface 208 and the inclined surface 209 are smooth and without defects. Then pick up the wedge 207, align the side with the mounting hole 204 with the direction of the wedge groove 206, and slowly slide the wedge 207 into the wedge groove 206 along the inclined surface 209. During the process, the clamping surface 208 is used to assist in positioning so that the wedge 207 is accurately embedded. After the wedge 207 is in place, take out the fastener 5 and insert it through the mounting hole 204 of the wedge 207. Since the width of the mounting hole 204 is greater than the width of the fastener 5, the operation is relatively easy and convenient and will not cause interference. Subsequently, align one end of fastener 25 with the corresponding threaded hole on the mounting base 203, and use a wrench or other tools to rotate fastener 25 so that it is threadedly connected to the mounting base 203 and gradually tightened until the wedge block 207 is firmly fixed in the wedge groove 206. Finally, install the tooth head 202 on top of the wedge block 207 to complete the overall assembly of the crushing tooth.

[0060] The design detail that the width of mounting hole 204 is greater than the width of fastener 25 provides ample space for fastener 25 to be inserted, reducing the difficulty of operation. Furthermore, when the tooth head 202 wears out and needs to be replaced after the equipment has been running for a period of time, thanks to the larger mounting hole 204, maintenance personnel have sufficient operating space to easily unscrew the fastener when disassembling it.

[0061] Furthermore, the side of the wedge 207 that abuts against the inclined surface 209 is a sliding mounting surface 210, the sliding mounting surface 210 has a mounting groove 211, the inclined surface 209 has a sliding groove 212, the mounting groove 211 connects to the sliding groove 212, and also includes: a limiting block 6, the two ends of the limiting block 6 are respectively located in the mounting groove 211 and the sliding groove 212; an elastic element 7, the elastic element 7 is disposed in the sliding groove 212, the two ends of the elastic element 7 are respectively connected to the limiting block 6 and the mounting base 203, and the elastic element 7 provides the force for the limiting block 6 to drive the wedge 207 to slide away from the wedge groove 206.

[0062] In this embodiment, in the above configuration process, components such as slide groove 212, limit block 6 and elastic element 7 are added. The elastic force of the elastic element 7 provides assistance for the wedge block 207 to slide away from the wedge groove 206. The maintenance personnel can gently pry the wedge block 207, and with the assistance of the elastic element 7, the wedge block 207 can be smoothly dislodged, reducing the difficulty of disassembly and the physical consumption. Moreover, under the connection of the fastener 2 5, it will not be affected by the shaking of the elastic element 7, and the tooth head 202 does not have any movement allowance after assembly.

[0063] Unlike the above configuration process, one end of the elastic element 7 needs to be fixed to the bottom of the slide groove 212 of the mounting base 203 beforehand. Then, carefully place one end of the limiting block 6 into the slide groove 212 to connect it with the other end of the elastic element 7. Be careful to operate smoothly to avoid damaging the elastic element 7. Insert the other end into the matching mounting groove 211, and then slowly install the wedge block 207. During this process, the sliding mounting surface 210 of the wedge block 207 slides along the inclined surface 209 to make good use of the force of the elastic element 7.

[0064] Furthermore, the length direction of the groove 212 is parallel to the length direction of the inclined plane 209.

[0065] In this embodiment, the slide groove 212 is parallel to the length direction of the inclined plane 209, which facilitates the smooth sliding of the limiting block 6, stabilizes the wedge block 207, and makes disassembly convenient.

[0066] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A detachable crushing tooth for a crusher, characterized in that, include: A toothed ring seat (1) has a plurality of mounting surfaces (101) arranged around the circumference of the toothed ring seat (1). Several crushing teeth (2) are provided. The bottom of each crushing tooth (2) has a mating surface (201). The crushing tooth (2) is detachably mounted on the mounting surface (101) through the mating surface (201). The mating surface (201) and the mounting surface (101) correspond one-to-one.

2. The detachable crushing tooth for a crusher according to claim 1, characterized in that, The toothed ring seat (1) is a hexagonal toothed ring, and the crushing tooth head (2) includes: The tooth head (202) and the mounting base (203) are provided on the top of the mounting base (203) and the bottom of the mounting base (203) has the mating surface (201).

3. A detachable crushing tooth for a crusher according to claim 2, characterized in that, The mounting base (203) is a crescent-shaped mounting base, and several mounting bases (203) together with the toothed ring seat (1) form a cylindrical roller (3). The mounting base (203) has a mounting hole (204) and also includes: Fastener 1 (4) is disposed in the mounting hole 1 (204) and penetrates the mating surface (201) and the mounting surface (101) for connecting the mounting base (203) and the toothed ring seat (1).

4. A detachable crushing tooth for a crusher according to claim 3, characterized in that, There are several mounting holes (204), and the mounting holes (204) are provided on both sides of the tooth head (202).

5. A detachable crushing tooth for a crusher according to claim 2, characterized in that, The tooth head (202) has a trapezoidal cross-section, and the edge of the tooth head (202) has a breaking blade (205).

6. A detachable crushing tooth for a crusher according to claim 5, characterized in that, The mounting base (203) also has a wedge groove (206) at the top, the tooth head (202) has a breaking blade (205) at the top edge, and the tooth head (202) has a wedge block (207) at the bottom. The tooth head (202) is set in the wedge groove (206) through the wedge block (207).

7. A detachable crushing tooth for a crusher according to claim 6, characterized in that, The wedge groove (206) has a triangular cross-section, and the inner wall of the wedge groove (206) has a clamping surface (208) and an inclined surface (209). Both the clamping surface (208) and the inclined surface (209) abut against the wedge block (207). The groove also includes: Fastener 2 (5) is disposed in the wedge (207) and connects the wedge (207) and the mounting base (203), and the fastener 2 (5) penetrates the inclined surface (209).

8. A detachable crushing tooth for a crusher according to claim 7, characterized in that, The wedge (207) has a mounting hole (204), and the fastener (5) is disposed in the mounting hole (204). One end of the fastener (5) is threadedly connected to the mounting base (203). The width of the mounting hole (204) is greater than the width of the fastener (5).

9. A detachable crushing tooth for a crusher according to claim 7, characterized in that, The wedge (207) abuts against the inclined surface (209) on one side, which is a sliding mounting surface (210). The sliding mounting surface (210) has a mounting groove (211), and the inclined surface (209) has a sliding groove (212). The mounting groove (211) communicates with the sliding groove (212). The surface also includes: The limiting block (6) has two ends located in the mounting groove (211) and the sliding groove (212), respectively; The elastic element (7) is disposed in the slide groove (212). The two ends of the elastic element (7) are respectively connected to the limiting block (6) and the mounting base (203). The elastic element (7) provides the limiting block (6) with the force to drive the wedge block (207) to slide away from the wedge groove (206).

10. A detachable crushing tooth for a crusher according to claim 9, characterized in that, The length direction of the groove (212) is parallel to the length direction of the inclined surface (209).