Multi-tipped reinforced pick

Abstract

The utility model relates to the technical field of many insert reinforced cutting tooth, and disclose a kind of many insert reinforced cutting tooth, including tooth body, the top of tooth body is equipped with thread groove, and the inner wall of thread groove is threadedly connected with alloy head.The direct current power supply fault arc detection device is provided with tooth body, thread groove, alloy head, external thread, mounting hole, wear-resistant coating, screw hole and jackscrew, alloy head is threadedly installed into tooth body thread groove, preliminary installation is realized, after jackscrew is screwed along the screw hole of tooth body, its end extends into the annular groove of alloy head and forms abutting to alloy head, further fixes alloy head, by double fixed structure, compared with single thread connection or welding mode, it can effectively cope with the violent impact and vibration sustained when cutting tooth operation, greatly reduce the risk of alloy head loosening or falling off, ensure the stable operation of cutting tooth under complex working conditions.

Description

Technical Field

[0001] This utility model relates to the technical field of accessories for coal mining machinery and equipment, specifically a multi-inserted reinforced cutting tooth. Background Technology

[0002] In engineering fields such as mining, tunneling, and road construction, cutting teeth are core components that come into direct contact with materials in tunneling equipment, and their performance directly affects construction efficiency, equipment wear and tear, and operating costs.

[0003] The prior art patent document CN212359752U discloses a new type of reinforced cutting tooth. The alloy head of the cutting tooth adopts a threaded design, thereby increasing the surface area of ​​the columnar part of the alloy head, which in turn increases the welding area between the alloy head and the tooth body. Therefore, the weld is more solid and the welding strength between the tooth body and the alloy head is increased.

[0004] The aforementioned existing technology, although it welds the alloy head into the tooth body, still has significant drawbacks in practical use. When the alloy head needs to be replaced due to wear or impact damage, the non-removable nature of the weld means that the welding residue remaining in the thread gap will cause the alloy head to adhere tightly to the tooth body. This not only makes the removal process extremely difficult but also damages the thread structure of the tooth body, making the tooth body unusable. The entire cutting tooth must be replaced, increasing the maintenance cost of the equipment and making alloy head replacement inconvenient. Therefore, we need a multi-inserted reinforced cutting tooth. Utility Model Content

[0005] The purpose of this invention is to provide a multi-inserted reinforced cutting tooth, which solves the problem of inconvenient replacement of alloy heads in the prior art.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A multi-inserted reinforced cutting tooth includes a tooth body, a threaded groove at the top of the tooth body, an alloy head threadedly connected to the inner wall of the threaded groove, an external thread on the outer wall of the alloy head, and a mounting hole on the inner wall of the alloy head. The outer wall of the alloy head is coated with a wear-resistant coating. A threaded hole is formed in the inner wall of the tooth body, and a set screw is threadedly connected to the inner wall of the threaded hole. An mounting groove is formed in the inner wall of the tooth body, and a bolt hole is formed in the inner wall of the mounting groove. A cylindrical insert is slidably connected to the inner wall of the mounting groove, and a fixing groove is formed in the inner wall of the cylindrical insert. A through groove is formed in the inner wall of the fixing groove. A fastening bolt is threadedly connected to the inner wall of the bolt hole.

[0007] Preferably, the tooth body forms a threaded structure with the alloy head through a threaded groove, and the internal thread in the threaded groove matches the external thread on the alloy head.

[0008] Preferably, there are two mounting holes, and the two mounting holes are symmetrically opened on the alloy head.

[0009] Preferably, the tooth body forms a threaded structure with a set screw through a threaded hole, and one end of the set screw extends into the threaded hole for connection.

[0010] Preferably, there are multiple mounting slots, and the multiple mounting slots are arranged equidistantly around the tooth body.

[0011] Preferably, the inner wall shape and size of the mounting groove match the outer wall shape and size of the cylindrical insert, and the inner wall of the mounting groove fits into the outer wall of the cylindrical insert.

[0012] Preferably, the tooth body is fixed to the cylindrical insert by fastening bolts, and one end of the fastening bolt passes through the through groove and extends into the bolt hole for connection.

[0013] Compared with the prior art, the beneficial effects achieved by this utility model are: 1. This utility model is provided with a tooth body, a threaded groove, an alloy head, an external thread, a mounting hole, a wear-resistant coating, a threaded hole, and a set screw. The alloy head is threaded into the threaded groove of the tooth body for initial installation. After the set screw is screwed into the threaded hole of the tooth body, its end extends into the annular groove of the alloy head and forms a tight fit against the alloy head, further fixing the alloy head. Through the double fixing structure, compared with a single threaded connection or welding method, it can effectively cope with the severe impact and vibration during the cutting tooth operation, greatly reducing the risk of the alloy head loosening or falling off, ensuring the stable operation of the cutting tooth under complex working conditions. At the same time, when the alloy head is damaged and needs to be replaced, the replacement operation of the alloy head is simple, and compared with the prior art, it does not require the replacement of the tooth body, reducing equipment maintenance costs.

[0014] 2. This utility model is equipped with an installation groove, bolt holes, cylindrical inserts, fixing grooves, through grooves and fastening bolts. By setting the cylindrical inserts as scraping tools, they work together with the main alloy head to assist in rock breaking, effectively improving the rock breaking effect. Moreover, the cylindrical inserts are detachable, which makes it easy to replace them in time according to the wear condition. The operation is simple and easy to use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram of the tooth body and alloy head structure of this utility model; Figure 3 This is a schematic diagram of the mounting groove and cylindrical insert structure of this utility model; Figure 4 This is a schematic diagram of the cylindrical insert and fastening bolt structure of this utility model.

[0016] The components are: 1. Tooth body; 2. Threaded groove; 3. Alloy head; 4. External thread; 5. Mounting hole; 6. Wear-resistant coating; 7. Threaded hole; 8. Set screw; 9. Mounting groove; 10. Bolt hole; 11. Cylindrical insert; 12. Fixing groove; 13. Through groove; 14. Fastening bolt; 15. Annular groove. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] like Figure 1-4 As shown, a multi-inserted reinforced cutting tooth includes a tooth body 1, a threaded groove 2 on the top of the tooth body 1, an alloy head 3 threadedly connected to the inner wall of the threaded groove 2, an external thread 4 on the outer wall of the alloy head 3, an installation hole 5 on the inner wall of the alloy head 3, a wear-resistant coating 6 on the outer wall of the alloy head 3, a threaded hole 7 on the inner wall of the tooth body 1, a set screw 8 threadedly connected to the inner wall of the threaded hole 7, an installation groove 9 on the inner wall of the tooth body 1, a bolt hole 10 on the inner wall of the installation groove 9, a cylindrical insert 11 slidably connected to the inner wall of the installation groove 9, a fixing groove 12 on the inner wall of the cylindrical insert 11, a through groove 13 on the inner wall of the fixing groove 12, a fastening bolt 14 threadedly connected to the inner wall of the bolt hole 10, and an annular groove 15 on the outer wall of the alloy head 3.

[0019] Through the above technical solution, the alloy head 3 is threaded into the threaded groove 2 of the tooth body 1 to achieve initial installation. After the set screw 8 is screwed into the threaded hole 7 of the tooth body 1, its end extends into the annular groove 15 of the alloy head 3 and forms a tight fit against the alloy head 3, further fixing the alloy head 3. Through the double fixing structure, compared with the single threaded connection or welding method, it can effectively cope with the severe impact and vibration during the cutting tooth operation, greatly reducing the risk of the alloy head 3 loosening or falling off, and ensuring the stable operation of the cutting tooth under complex working conditions. By setting the cylindrical insert 11 as a scraping tool, it works in conjunction with the main alloy head 3 to assist in rock breaking, effectively improving the rock breaking effect. Moreover, the cylindrical insert 11 is detachable, which is convenient to replace in time according to the wear condition. It is simple to operate and easy to use.

[0020] Specifically, the tooth body 1 forms a threaded structure with the alloy head 3 through the threaded groove 2, and the internal thread in the threaded groove 2 matches the external thread 4 on the alloy head 3.

[0021] Through the above technical solution, the alloy head 3 can be well threaded into the threaded groove 2 of the tooth body 1 through the external thread 4. Compared with the traditional welding method, the threaded connection avoids the degradation of alloy material performance caused by high temperature welding, and at the same time facilitates quick replacement on site, reducing downtime.

[0022] Specifically, there are two mounting holes 5, and the two mounting holes 5 are symmetrically opened on the alloy head 3.

[0023] Through the above technical solution, the mounting hole 5 is used to provide a force point when installing or removing the alloy head 3. A special tool can be inserted into the mounting hole 5 to apply torque, ensuring a tight threaded connection between the alloy head 3 and the tooth body 1.

[0024] Specifically, the tooth body 1 forms a threaded structure with the set screw 8 through the threaded hole 7, and one end of the set screw 8 extends into the threaded hole 7 for connection.

[0025] Through the above technical solution, after the set screw 8 is screwed in, its end is embedded in the annular groove 15 of the alloy head 3 to form a mechanical lock, preventing the alloy head 3 from loosening under high frequency vibration. Through the dual fixing structure of threaded connection and set screw 8 locking, the stability of the cutting tooth under impact load is improved and the risk of alloy head 3 falling off is reduced. The wear-resistant coating 6 can be a composite coating material of nickel-chromium alloy and alumina ceramic, so that the alloy head 3 has good wear resistance.

[0026] Specifically, there are multiple mounting slots 9, and the multiple mounting slots 9 are arranged equidistantly around the tooth body 1.

[0027] The above technical solution enables multiple cylindrical inserts 11 to form an auxiliary cutting structure surrounding the main alloy head 3, which shares the load during the cutting process and improves the overall rock breaking efficiency.

[0028] Specifically, the inner wall shape and size of the mounting groove 9 match the outer wall shape and size of the cylindrical insert 11, and the inner wall of the mounting groove 9 fits against the outer wall of the cylindrical insert 11.

[0029] The above technical solution makes it less likely for the cylindrical insert 11 to wobble during the cutting process, ensuring cutting stability. The tight fit reduces stress concentration, prevents insert breakage, and improves the convenience of insert replacement.

[0030] Specifically, the tooth body 1 is fixed to the cylindrical insert 11 by fastening bolt 14, and one end of the fastening bolt 14 passes through the through groove 13 and extends into the bolt hole 10 for connection.

[0031] With the above technical solution, the cylindrical insert 11 can be well fixed in the mounting groove 9 by using the fastening bolt 14, and the head of the fastening bolt 14 is provided with a hexagonal hole, which facilitates installation and disassembly.

[0032] In use, first, the alloy head 3 is screwed into the threaded groove 2 of the tooth body 1 through the external thread 4. After reaching the predetermined torque, the set screw 8 is screwed into the threaded hole 7 until its end is embedded in the annular groove 15 of the alloy head 3, completing the installation of the main cutting part. Then, the cylindrical insert 11 is slid into the mounting groove 9, so that the fixing groove 12 is aligned with the bolt hole 10. The fastening bolt 14 is inserted through the through groove 13 and tightened, completing the installation of the auxiliary cutting structure. During the cutting operation, the main alloy head 3 undertakes the main rock breaking task, and the surrounding cylindrical insert 11 simultaneously scrapes and assists in crushing the rock, forming a synergistic cutting effect. This completes all the work. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-inserted reinforced cutting tooth, comprising a tooth body (1), characterized in that: The tooth body (1) has a threaded groove (2) at the top, and an alloy head (3) is threadedly connected to the inner wall of the threaded groove (2). The outer wall of the alloy head (3) has an external thread (4), and the inner wall of the alloy head (3) has an installation hole (5). The outer wall of the alloy head (3) is coated with a wear-resistant coating (6). The inner wall of the tooth body (1) has a threaded hole (7), and the inner wall of the threaded hole (7) is threadedly connected to a set screw (8). The inner wall of the tooth body (1) has an installation groove (9), and the inner wall of the installation groove (9) has a bolt hole (10). The inner wall of the installation groove (9) is slidably connected to a cylindrical insert (11), and the inner wall of the cylindrical insert (11) has a fixing groove (12). The inner wall of the fixing groove (12) has a through groove (13). The inner wall of the bolt hole (10) is threadedly connected to a fastening bolt (14). The outer wall of the alloy head (3) has an annular groove (15).

2. The multi-inserted reinforced cutting tooth according to claim 1, characterized in that: The tooth body (1) forms a threaded structure with the alloy head (3) through the threaded groove (2), and the internal thread in the threaded groove (2) matches the external thread (4) on the alloy head (3).

3. The multi-inserted reinforced cutting tooth according to claim 1, characterized in that: The number of mounting holes (5) is two, and the two mounting holes (5) are symmetrically opened on the alloy head (3).

4. The multi-inserted reinforced cutting tooth according to claim 1, characterized in that: The tooth body (1) forms a threaded structure with the set screw (8) through the threaded hole (7), and one end of the set screw (8) extends into the threaded hole (7) for connection.

5. A multi-inserted reinforced cutting tooth according to claim 1, characterized in that: The number of mounting slots (9) is multiple, and the multiple mounting slots (9) are arranged equidistantly around the tooth body (1).

6. A multi-inserted reinforced cutting tooth according to claim 1, characterized in that: The inner wall shape and size of the mounting groove (9) match the outer wall shape and size of the cylindrical insert (11), and the inner wall of the mounting groove (9) fits against the outer wall of the cylindrical insert (11).

7. A multi-inserted reinforced cutting tooth according to claim 1, characterized in that: The tooth body (1) is fixed to the cylindrical insert (11) by fastening bolt (14), and one end of the fastening bolt (14) passes through the through groove (13) and extends into the bolt hole (10) for connection.

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