A toothed roll tooth cap replaceable crusher

Abstract

The application relates to a tooth-roller tooth-cap replaceable crusher and relates to the field of crushing equipment, which comprises a tooth roller, a plurality of tooth seats are fixedly sleeved on the tooth roller, a plurality of protruding blocks are arranged on the circumferential side of the tooth seat, each protruding block is used for mounting a tooth cap, a primary limiting assembly is mounted on each protruding block, a locking assembly for locking the tooth cap and the protruding block is further mounted, a surface of the tooth cap close to the protruding block is provided with a mounting groove for inserting the protruding block, the mounting groove comprises an opening section and a groove bottom section, a limiting groove is arranged on one side surface of the groove bottom section, the side surface of the groove bottom section away from the limiting groove is a bevel, one side surface of the protruding block is provided with a mounting hole, one end of the mounting hole is provided with a locking groove, the primary limiting assembly comprises a limiting rod member inserted with the mounting hole, and one end of the limiting rod member is fixedly connected with a limiting block. The application has the effect of saving labor and limiting the tooth-cap disengaging tooth-seat situation.

Description

Technical Field

[0001] This application relates to the field of crushing equipment, and in particular to a crusher with replaceable toothed roller caps. Background Technology

[0002] Currently, coal crushing is usually done using coal crushers, which are generally two-stage crushers and belong to high-efficiency fine crushing equipment.

[0003] Since coal crushing relies primarily on the protruding tooth caps on the two toothed rollers, these caps wear out quickly. Once worn to a certain extent, the tooth caps must be replaced; otherwise, the equipment's output will plummet, reducing efficiency. In related technologies, toothed rollers are circumferentially fitted with toothed seats, and the tooth caps are typically bolted to these seats. However, during installation, the tooth caps need to be moved to the appropriate position on the toothed seat, and then manual force is applied to prevent them from detaching from the seat. Finally, bolts are used to secure the tooth caps to the toothed seat.

[0004] However, before the tooth cap and tooth base are fixed together with bolts, the tooth cap needs to be manually restricted from detaching from the tooth base, which is a waste of manpower. Summary of the Invention

[0005] To reduce the likelihood of the tooth cap detaching from the tooth seat and save manpower, this application provides a crusher with a replaceable toothed roller and tooth cap.

[0006] The technical solution of the replaceable toothed roller cap crusher provided in this application is as follows:

[0007] A replaceable toothed roller and toothed cap crusher includes a toothed roller with multiple toothed seats fixedly fitted onto it. Multiple protrusions are provided around the periphery of each toothed seat, and each protrusion is used to mount a toothed cap. Each protrusion is equipped with a preliminary limiting component and a locking component for locking the toothed cap and the protrusion. The toothed cap has an installation groove for inserting the protrusion on its surface near the protrusion. The installation groove includes an opening section and a bottom section. A limiting groove is provided on one side of the bottom section, and the side of the bottom section away from the limiting groove is an inclined surface. An installation hole is provided on one side of the protrusion, and a locking groove is provided at one end of the installation opening. The preliminary limiting component includes a limiting rod that inserts into the installation hole. One end of the limiting rod is fixedly connected to a limiting block. As the protrusion is gradually inserted into the installation groove, the inclined surface pushes the limiting block into the locking groove. The movement of the limiting block causes one end of the limiting rod to insert into the limiting groove.

[0008] By adopting the above technical solution, when a tooth cap needs to be installed on the tooth base, the end of the tooth cap with the installation groove is aligned with the corresponding protrusion. Then, the tooth cap is pushed towards the protrusion, and the protrusion gradually inserts into the opening section and the bottom section of the groove. When the protrusion is inserted into the bottom section of the groove, the limiting block contacts the inclined surface. As the protrusion continues to be inserted into the bottom section of the groove, the inclined surface applies a force to the limiting block as it approaches the locking groove. In this way, the limiting block gradually engages with the locking groove. At the same time, the end of the limiting rod away from the limiting block gradually extends out of the installation hole and engages with the limiting groove. At this point, the tooth cap and the protrusion are initially bound together, making it difficult for the tooth cap to detach from the protrusion. This method saves manpower and prevents the tooth cap from detaching from the tooth base.

[0009] Preferably, the toothed cap has a transition hole on one of its outer side walls near the limiting groove.

[0010] By adopting the above technical solution, when it is necessary to disassemble the tooth cap and tooth seat, a tool is used to push the limiting rod through the transition hole to gradually retract into the mounting hole, while the tooth cap is pulled to gradually detach from the protrusion. The operation is simple and convenient.

[0011] Preferably, the limiting rod includes a first rod body and a second rod body fixedly connected to the limiting block. The second rod body has a connecting groove on its side away from the limiting block. The bottom wall of the connecting groove has a receiving groove with an elliptical cross-section. One end of the first rod body has a connecting post with an elliptical cross-section. One end of the connecting post is inserted into the connecting groove. A spring in a stretched state is fixedly connected between the connecting post and the bottom wall of the receiving groove. The side of the connecting post near the receiving groove is in close contact with the bottom wall of the connecting groove. The side wall of the limiting rod near the transition hole has a tool groove.

[0012] By employing the above technical solution, a tool is inserted into the tool slot and the first rod is rotated. The rotation of the first rod causes the connecting post to rotate. When the major diameter of the connecting post is parallel to the major diameter of the receiving groove, the connecting post is gradually inserted into the receiving groove under the tension of the spring. At this time, the first rod retracts into the mounting hole. This removes the constraint between the toothed cap and the protrusion. Moving the toothed cap away from the protrusion completes the disassembly of the toothed cap and the protrusion.

[0013] Preferably, a connecting block is rotatably connected to one end of the connecting column near the receiving groove, the connecting block is slidably inserted into the receiving groove, and the spring is fixedly connected between the connecting block and the bottom wall of the receiving groove.

[0014] By adopting the above technical solution, the connecting block is rotatably connected to one end of the connecting column, reducing the occurrence of situations where the spring is directly fixed to the connecting column, affecting the rotation of the connecting column.

[0015] Preferably, the tooth cap has a locking hole on its surface away from the tooth seat, the protrusion has a connecting hole on its surface away from the tooth roller, and the locking assembly includes a threaded rod that is threadedly connected to both the locking hole and the connecting hole.

[0016] By adopting the above technical solution, after the tooth cap and tooth seat are limited by the initial limiting component, the threaded rod is then inserted into the locking hole and the connecting hole in sequence, and the threaded rod is threadedly connected to the locking hole and the connecting hole together.

[0017] Preferably, the surface of the protrusion away from the toothed roller has a pin hole, and the side wall of the toothed roller has a number of pin grooves equal to the number of pin holes, with one pin hole corresponding to one pin groove. A pin is inserted into each pin hole, one end of the pin is inserted into the corresponding pin groove and abuts against the bottom wall of the pin groove, and the end of the pin away from the pin groove is flush with the surface of the protrusion away from the toothed roller.

[0018] By adopting the above technical solution, the setting of the pin strengthens the connection between the tooth seat and the tooth roller. When the tooth cap is installed on the protrusion, the tooth cap prevents the pin from dislodging from the pin hole and the pin groove.

[0019] Preferably, the surface of the protrusion away from the toothed roller has a pin hole, and the side wall of the toothed roller has a number of pin grooves equal to the number of pin holes, with one pin hole corresponding to one pin groove. A pin is inserted into each pin hole, and the length of the pin is less than the total length of the pin hole and pin groove. The surface of the toothed cap away from the toothed roller has a transition hole, and a stabilizing rod is threaded into the transition hole. One end of the stabilizing rod is inserted into the pin hole and presses against the end of the pin away from the toothed roller.

[0020] By adopting the above technical solution, the length of the pin is set to be less than the total length of the pin hole and pin groove. This reduces the possibility of the pin protruding from the surface of the protrusion block away from the toothed roller due to errors during the production process, which could cause difficulties in tightly installing the toothed cap and the protrusion block. The stabilizing rod abuts against one end of the pin, preventing the pin from wobbling within the pin hole and pin groove.

[0021] Preferably, the tooth cap includes a wear-resistant part and a joint part. The material of the wear-resistant part comprises the following raw materials in weight percentage: C: 0.38-0.42%, Si: 1.20-1.40%, Mn: 1.30-1.50%, Ni: 0.80-1.00%, Cr: 0.90-1.10%, Mo: 0.70-0.90%, V: 0.20-0.30%, Ti: 0.20-0.30%, Nb: 0.03-0.06%, W: 0.5-0.7%, B: 0.03-0.20%, P: ≤0.035%, S: ≤0.035%, with the balance being Fe.

[0022] By adopting the above technical solution, any value of each raw material within this range can be used to obtain a wear-resistant material that meets the requirements of this application.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. Before the toothed cap and the protrusion are fastened together, the toothed cap and the protrusion are initially bound together, making it difficult for the toothed cap to detach from the protrusion, thus saving manpower and preventing the toothed cap from detaching from the toothed seat;

[0025] 2. The end of the retaining rod that abuts against the pin prevents the pin from wobbling within the pin hole and pin groove;

[0026] 3. The tooth cap has good wear resistance and low cost. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the crusher as shown in Embodiment 1 of this application.

[0028] Figure 2 This is a schematic diagram illustrating the installation of the tooth cap and tooth seat in Embodiment 1 of this application.

[0029] Figure 3 This is an exploded view of one of the tooth caps and tooth seats in Embodiment 1 of this application.

[0030] Figure 4 This is a schematic diagram illustrating the structure of the locking component in Embodiment 1 of this application.

[0031] Figure 5 This is a schematic diagram of the limiting rod structure in Embodiment 1 of this application.

[0032] Figure 6 This is a schematic diagram illustrating the position and structure of the wear-resistant part and the joint in Embodiment 1 of this application.

[0033] Explanation of reference numerals in the attached drawings: 1. Crushing box; 11. Through hole; 2. Toothed roller; 21. Pin groove; 3. Crushing motor; 4. Tooth seat; 41. Protrusion; 411. Mounting hole; 412. Locking groove; 42. Connecting hole; 43. Pin hole; 5. Tooth cap; 51. Mounting groove; 511. Opening section; 512. Groove bottom section; 513. Restricting groove; 514. Inclined surface; 52. Locking hole; 53. Transition hole; 54. Wear-resistant part; 55. Joint; 6. Preliminary restriction assembly; 61. Limiting rod; 611. Rod body one; 6111. Connecting column; 6112. Connecting block; 612. Rod body two; 6121. Connecting groove; 6122. Receiving groove; 613. Spring; 62. Limiting block; 63. Tool groove; 7. Locking assembly; 71. Threaded rod; 8. Pin; 9. Stabilizing rod. Detailed Implementation

[0034] The following is in conjunction with the appendix Figures 1-6 This application will be described in further detail.

[0035] Example 1

[0036] This application discloses a crusher with replaceable toothed roller caps. (Refer to...) Figure 1 and Figure 2 The crusher includes a crushing box 1, inside which two toothed rollers 2 are installed. Two through holes 11 are respectively opened on the two opposite side walls of the crushing box 1. Each end of each toothed roller 2 corresponds to one through hole 11. Bearings are fixedly connected to both ends of each toothed roller 2, and each bearing is installed in its corresponding through hole 11. The outer ring of the bearing is fastened to the inner side wall of the corresponding through hole 11 by bolts, and the inner ring of the bearing is fastened to one end of the corresponding toothed roller 2 by bolts. Two crushing motors 3 are fixedly connected to one outer side wall of the crushing box 1, with one crushing motor 3 corresponding to one toothed roller 2. The output shaft of the crushing motor 3 is coaxially fixed to one end of the toothed roller 2.

[0037] Each toothed roller 2 has multiple tooth seats 4 connected to its circumference by keys. The tooth seats 4 are arranged along the length of the toothed roller 2, and each tooth seat 4 is equipped with multiple tooth caps 5. Multiple protrusions 41 are evenly distributed on the circumference of the tooth seat 4, and the number of tooth caps 5 installed on each tooth seat 4 is equal to the number of protrusions 41. Each protrusion 41 is equipped with a preliminary limiting component 6 to prevent the tooth caps 5 from disengaging from the protrusion 41, and a locking component 7 to lock the tooth caps 5 to the protrusion 41.

[0038] Reference Figure 2 and Figure 3 The toothed cap 5 has a mounting groove 51 on one surface near the protrusion 41, and each protrusion 41 has a mounting hole 411 on one side, which penetrates the protrusion 41. The side of the protrusion 41 with the mounting hole 411 also has a locking groove 412, the diameter of which is larger than the diameter of the protrusion 41. The preliminary limiting component 6 includes a limiting rod 61 inserted into the mounting hole 411, one end of which is fixedly connected to a limiting block 62, which is aligned with the locking groove 412.

[0039] The mounting groove 51 includes an opening section 511 and a bottom section 512. The length of the opening section 511 is equal to the sum of the length of the protrusion 41 and the thickness of the limiting block 62. A limiting groove 513 is provided on one side wall of the bottom section 512. The side wall of the bottom section 512 away from the limiting groove 513 is an inclined surface 514. The inclined surface 514 gradually slopes from the direction away from the opening section 511 towards the direction closer to the limiting groove 513.

[0040] When it is necessary to install the toothed cap 5 on the protrusion 41, insert the limiting rod 61 in the preliminary limiting assembly 6 into the mounting hole 411 from the locking groove 412 until the limiting block 62 contacts the opening of the locking groove 412. Then align the mounting groove 51 on the bottom surface of the toothed cap 5 with the protrusion 41 and move the toothed cap 5 towards the protrusion 41 until the protrusion 41 is inserted into the mounting groove 51.

[0041] During this process, the toothed cap 5 falls towards the protrusion 41 under its own weight. When the protrusion 41 is inserted into the bottom section 512 of the groove, the inclined surface 514 contacts the limiting block 62 and applies a force towards the locking groove 412 to the limiting block 62. Thus, the limiting block 62 gradually inserts into the locking groove 412 and is press-fitted into it. The end of the limiting rod 61 away from the limiting block 62 is inserted into the limiting groove 513. When the top surface of the protrusion 41 contacts the bottom surface of the mounting groove 51, the initial limiting of the toothed cap 5 and the protrusion 41 is completed. The toothed cap 5 and the protrusion 41 are then securely connected by the locking assembly 7.

[0042] When installing the toothed cap 5 on the corresponding protrusion 41, keep the protrusion 41 vertically upward, so as to facilitate the installation of the toothed cap 5 on the protrusion 41.

[0043] Reference Figure 2 and Figure 4 The locking assembly 7 includes two threaded rods 71. Each toothed cap 5 has two locking holes 52 on its surface opposite to the protrusion 41, and each locking hole 52 vertically penetrates the toothed cap 5. Each protrusion 41 has two connecting holes 42 on its surface away from the toothed roller 2, with one locking hole 52 corresponding to one connecting hole 42. Each threaded rod 71 is threadedly connected to the corresponding locking hole 52 and the corresponding connecting hole 42, thus completing the fastening connection between the toothed cap 5 and the protrusion 41.

[0044] To reinforce the connection between the toothed seat 4 and the toothed roller 2, each toothed seat 4 has a pin hole 43 on its surface away from the toothed roller 2, with the pin hole 43 penetrating vertically through the toothed seat 4. The toothed roller 2 has four pin grooves 21 on its circumference, with one pin hole 43 corresponding to one pin groove 21. When the toothed seat 4 is connected to the toothed roller 2 by a key, each pin hole 43 is aligned with its corresponding pin groove 21, and the same pin 8 is inserted into both the pin hole 43 and the corresponding pin groove 21.

[0045] When the pin 8 is inserted into the corresponding pin hole 43 and pin groove 21, the end face of the pin 8 away from the toothed roller 2 is flush with the surface of the protrusion 41 away from the toothed roller 2, or the length of the pin 8 is less than the total length of the pin 8 plus the pin groove 21.

[0046] However, in the actual production process, errors are inevitable in the production of pin 8. When the pin 8 is fully inserted into the corresponding pin hole 43 and pin groove 21 due to production errors, the end of the pin 8 away from the toothed roller 2 protrudes out of the protrusion block 41. At this time, the pin 8 will affect the installation of the protrusion block 41 and the toothed cap 5.

[0047] To reduce this situation, during the machining of pin 8, the length of pin 8 is usually less than the total length of pin 8 plus pin groove 21. When pin 8 is inserted into the corresponding pin hole 43 and pin groove 21, pin 8 will wobble in the pin hole 43 and pin groove 21. To solve the problem of pin 8 wobble, a stabilizing element is installed on each toothed cap 5.

[0048] Each toothed cap 5 has a stabilizing hole on the surface opposite to the toothed roller 2. The stabilizing hole passes through the toothed cap 5 and is aligned with the corresponding pin hole 43. The stabilizing component includes a stabilizing rod 9 that is threaded into the stabilizing hole. One end of the stabilizing rod 9 extends into the corresponding pin hole 43 and abuts against the pin 8. The stabilizing rod 9 restricts the pin 8 from shaking.

[0049] Reference Figure 3 and Figure 5 When the tooth cap 5 is disassembled from the tooth seat 4, the limiting rod 61 is a telescopic rod to facilitate the disengagement of the protrusion 41 from the mounting groove 51 on the tooth cap 5. The limiting rod 61 includes a first rod body 611 and a second rod body 612 fixedly connected to the limiting block 62. A connecting groove 6121 is provided on the side of the second rod body 612 away from the limiting block 62, and a receiving groove 6122 with an elliptical cross-section is provided on the bottom wall of the connecting groove 6121. A connecting post 6111 with an elliptical cross-section is provided at the end of the first rod body 611 near the second rod body 612, and a connecting block 6112 with an elliptical cross-section is rotatably connected to the end of the connecting post 6111 away from the first rod body 611.

[0050] A connecting block 6112 is placed inside a receiving groove 6122. A spring 613 is installed inside the receiving groove 6122. One end of the spring 613 is fixedly connected to the bottom wall of the receiving groove 6122, and the other end is fixedly connected to the connecting block 6112. One end of a connecting post 6111 is inserted into the connecting groove 6121, and the major diameter of the connecting post 6111 is perpendicular to the major diameter of the receiving groove 6122. The side of the connecting post 6111 closest to the receiving groove 6122 is pressed tightly against the bottom wall of the connecting groove 6121 by the elastic force of the spring 613.

[0051] Reference Figure 2 , Figure 3 and Figure 5A transition hole 53 is provided on one outer side wall of the tooth cap 5 near the limiting groove 513, and the transition hole 53 communicates with the interior of the limiting groove 513. A hexagonal tool groove 63 is provided on one side wall of the rod body 611 away from the rod body 612. With the help of a tool (such as a screwdriver), the rod body 611 is inserted into the limiting groove 513 through the transition hole 53. Then, one end of the tool is inserted into the tool groove 63 and the rod body 611 is rotated until the major diameter of the rod body 611 is parallel to the major diameter of the receiving groove 6122. At this time, the rod body 611 is gradually inserted into the receiving groove 6122 by the elastic force of the spring 613. At this time, the limiting rod 61 shortens and the rod body 611 retracts into the mounting hole 411. The tooth cap 5 can be removed from the tooth seat 4 by pulling the tooth cap 5 away from the protrusion 41.

[0052] A cap is detachably connected inside the transition hole 53, and the cap is threadedly connected to the inner wall of the transition hole 53.

[0053] Reference Figure 6 Each tooth cap 5 includes a wear-resistant part 54 and a joint part 55. The wear-resistant part 54 is the part that mainly bears wear when the crusher is crushing. The material of the wear-resistant part 54 includes the following raw materials in weight percentage: C: 0.38%, Si: 1.31%, Mn: 1.42%, Ni: 0.95%, Cr: 0.95%, Mo: 0.83%, W: 0.55%, V: 0.14%, Ti: 0.13%, Nb: 0.048%, B: 0.048%, P: 0.032%, S: 0.027%, with the balance being Fe.

[0054] The implementation principle of a replaceable toothed roller crusher according to an embodiment of this application is as follows: When it is necessary to install a toothed cap 5 on the toothed seat 4, the mounting groove 51 on the toothed cap 5 is vertically aligned with the corresponding protrusion 41, and then the toothed cap 5 is moved towards the protrusion 41, and the protrusion 41 is gradually inserted into the mounting groove 51. When the protrusion 41 is inserted into the bottom section 512 of the groove, the inclined surface 514 pushes the limiting block to gradually insert into the locking groove 412, and one end of the limiting rod 61 is inserted into the limiting groove 513. Then, each threaded rod 71 is sequentially inserted into the corresponding locking hole 52 and connecting hole, so that the threaded rod 71 is threadedly connected to the locking hole 52 and the connecting hole respectively.

[0055] Example 2

[0056] This application discloses a crusher with replaceable toothed roller caps. The difference from Embodiment 1 is that the material of the wear-resistant part comprises the following raw materials in weight percentages: C: 0.40%, Si: 1.35%, Mn: 1.37%, Ni: 0.91%, Cr: 0.97%, Mo: 0.81%, W: 0.53%, V: 0.16%, Ti: 0.15%, Nb: 0.05%, B: 0.048%, P: 0.032%, S: 0.03%, with the balance being Fe.

[0057] Example 3

[0058] This application discloses a crusher with replaceable toothed roller caps. The difference from Embodiment 1 is that the material of the wear-resistant part comprises the following raw materials in weight percentages: C: 0.39%, Si: 1.33%, Mn: 1.38%, Ni: 0.96%, Cr: 0.95%, Mo: 0.85%, W: 0.56%, V: 0.15%, Ti: 0.14%, Nb: 0.046%, B: 0.05%, P: 0.033%, S: 0.026%, with the balance being Fe.

[0059] Example 4

[0060] This application discloses a crusher with replaceable toothed roller caps. The difference from Embodiment 1 is that the material of the wear-resistant part comprises the following raw materials in weight percentages: C: 0.41%, Si: 1.37%, Mn: 1.41%, Ni: 0.94%, Cr: 0.95%, Mo: 0.83%, W: 0.54%, V: 0.17%, Ti: 0.14%, Nb: 0.051%, B: 0.048%, P: 0.033%, S: 0.027%, with the balance being Fe.

[0061] Table 1: Comparison of mechanical property parameters between imported materials and the wear-resistant part materials of the present invention in various embodiments.

[0062] Imported materials Example 1 Example 2 Example 3 Example 4 Hardness / HRC 32-33 33.3-35.4 34.3-35.6 33.7-35.6 32.6-34.3 Tensile strength / MPa 1044 1246 1239 1238 1241 Yield / MPa 991 1180 1174 1170 1177 Elongation / % 9 6.5 8.0 8.5 7.5 Reduction of area 22 24 25 22 24 Impact toughness 39 34 20 27 32 matrix tissue Tempered sorbite Tempered sorbite Tempered sorbite Tempered sorbite Tempered sorbite

[0063] As shown in Table 1, the mechanical properties of the wear-resistant material for the tooth cap provided by this invention meet or exceed the performance parameters of imported materials. It is a material that can replace foreign imports and is worth promoting.

[0064] C: An appropriate amount of carbon can improve the strength of cast steel. Carbon that cannot be dissolved in solid form carbides with carbide-forming elements, thereby increasing the hardness of the workpiece. Some carbides that are difficult to dissolve in austenite can prevent grain growth and refine the grains.

[0065] Si: It is dissolved in the matrix and plays a role in solid solution strengthening. In addition, silicon also has the effects of deoxidation and promoting nucleation, which is beneficial to grain refinement.

[0066] Mn: Part of it dissolves in the matrix, providing solid solution strengthening; another part replaces some Fe atoms, forming special carbides; it can also form sulfides with S, reducing the adverse effects of S on castings. In addition, Mn can improve hardenability.

[0067] Ni: It is dissolved in the matrix, which increases the strength of cast steel without reducing its toughness.

[0068] Cr: Part of it dissolves in the matrix, playing a solid solution strengthening role; another part forms carbides, improving the wear resistance of castings; Cr can improve hardenability.

[0069] Mo: Part of it is dissolved in the matrix, playing a solid solution strengthening role; another part forms carbides, improving the wear resistance of castings; Mo can improve hardenability and avoid temper brittleness.

[0070] W: Its main function is to increase the tempering stability, red hardness and hot strength of steel, as well as increase wear resistance due to the special carbides formed.

[0071] V, Ti, Nb, B: form carbides that are difficult to dissolve in austenite, which can improve wear resistance and refine grain size.

[0072] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A toothed roll tooth cap replaceable crusher comprising a toothed roll (2), a plurality of tooth holders (4) are fixedly sleeved on the toothed roll (2), characterized in that, The peripheral side of the tooth holder (4) is provided with a plurality of protruding blocks (41), each of which is used for mounting a tooth cap (5), each protruding block (41) is provided with a preliminary limiting assembly (6), and a locking assembly (7) is further provided for locking the tooth cap (5) and the protruding block (41); a surface of the tooth cap (5) close to the protruding block (41) is provided with a mounting groove (51) for inserting the protruding block (41), the mounting groove (51) comprises an opening section (511) and a groove bottom section (512), a limiting groove (513) is formed in one side of the groove bottom section (512), and the side of the groove bottom section (512) away from the limiting groove (513) is a bevel (514); one side of the protruding block (41) is provided with a mounting hole (411), and one end of the mounting hole (411) is provided with a locking groove (412); the preliminary limiting assembly (6) comprises a limiting rod (61) inserted into the mounting hole (411), one end of the limiting rod (61) is fixedly connected with a limiting block (62), and during the process that the protruding block (41) is gradually inserted into the mounting groove (51), the bevel (514) pushes the limiting block (62) to be gradually inserted into the locking groove (412), and the movement of the limiting block (62) drives one end of the limiting rod (61) to be inserted into the limiting groove (513). An outer side wall of the tooth cap (5) close to the limiting groove (513) is provided with a transition hole (53). The limiting rod (61) comprises a rod body one (611) and a rod body two (612) fixedly connected with the limiting block (62), one side of the rod body two (612) away from the limiting block (62) is provided with a connecting groove (6121), a bottom wall of the connecting groove (6121) is provided with a receiving groove (6122) with an elliptical cross section, one end of the rod body one (611) is provided with a connecting column (6111) with an elliptical cross section, one end of the connecting column (6111) is inserted into the connecting groove (6121), a spring (613) in a stretched state is fixedly connected between the connecting column (6111) and the bottom wall of the receiving groove (6122), one side of the connecting column (6111) close to the receiving groove (6122) is tightly connected to the bottom wall of the connecting groove (6121), and one side of the limiting rod (61) close to the transition hole (53) is provided with a tool groove (63).

2. A sprocket roller tooth cap replaceable crusher as claimed in claim 1, characterized in that, One end of the connecting column (6111) close to the receiving groove (6122) is rotatably connected with a connecting block (6112), the connecting block (6112) is slidably inserted into the receiving groove (6122), and the spring (613) is fixedly connected between the connecting block (6112) and the bottom wall of the receiving groove (6122).

3. A sprocket roller tooth cap replaceable crusher as claimed in claim 1 wherein, A surface of the tooth cap (5) away from the tooth holder (4) is provided with a locking hole (52), a surface of the protruding block (41) away from the tooth roller (2) is provided with a connecting hole (42), and the locking assembly (7) comprises a threaded rod (71) threadedly connected with the locking hole (52) and the connecting hole (42).

4. A sprocket roller tooth cap replaceable crusher as claimed in claim 1 wherein, The convex block (41) is provided with a pin hole (43) away from a surface of the tooth roller (2), the side wall surface of the tooth roller (2) is provided with pin grooves (21) equal in number to the pin holes (43), one pin hole (43) corresponds to one pin groove (21), and a pin (8) is inserted into each pin hole (43), one end of the pin (8) is inserted into the corresponding pin groove (21) and abuts against the bottom wall of the pin groove (21), and the end of the pin (8) away from the pin groove (21) is flush with the surface of the convex block (41) away from the tooth roller (2).

5. A sprocket roller tooth cap replaceable crusher as claimed in claim 1 wherein, The convex block (41) is provided with a pin hole (43) away from a surface of the tooth roller (2), the side wall surface of the tooth roller (2) is provided with pin grooves (21) equal in number to the pin holes (43), one pin hole (43) corresponds to one pin groove (21), and a pin (8) is inserted into each pin hole (43), the length of the pin (8) is less than the total length of the pin hole (43) and the pin groove (21), the tooth cap (5) is provided with a transition hole (53) away from a surface of the tooth roller (2), and a stabilizing rod (9) is threadedly connected in the transition hole (53), one end of the stabilizing rod (9) is inserted into the pin hole (43) and abuts against the end of the pin (8) away from the tooth roller (2).

6. A sprocket roller tooth cap replaceable crusher as claimed in claim 1 wherein, The tooth cap (5) comprises a wear-resistant part (54) and a connecting part (55), and the material of the wear-resistant part (54) comprises the following raw materials in percentage by weight: C: 0.38-0.42%, Si: 1.20-1.40%, Mn: 1.30-1.50%, Ni: 0.80-1.00%, Cr: 0.90-1.10%, Mo: 0.70-0.90%, V: 0.20-0.30%, Ti: 0.20-0.30%, Nb: 0.03-0.06%, W: 0.5-0.7%, B: 0.03-0.20%, P: ≤0.035%, S: ≤0.035%, and the balance is Fe.

Images