Mining anti-throwing-off cutting pick

Abstract

The utility model provides a mining anti-throwing-off cutting pick, which relates to the technical field of cutting picks and comprises a cutting pick sleeve, an upper tooth ring is fixedly sleeved on the outer surface wall of the cutting pick sleeve, a lower tooth ring is fixedly mounted at the bottom of the cutting pick sleeve, a clamp spring is arranged on the outer surface wall of the cutting pick sleeve, and the top of the clamp spring is contacted with the bottom of the upper tooth ring. The bottom of the clamping spring makes contact with the top of the lower gear ring, two baffles are fixedly installed on one side of the outer wall of the clamping spring, and clamping holes are formed in the tops of the two baffles. According to the utility model, the clamping spring pliers are inserted into the clamping holes in the two baffles, move towards the outer side for a proper distance, and then are sleeved on the cutting tooth sleeve, so that the cutting tooth sleeve can be effectively prevented from being thrown off in the working process under the action of the clamping spring, and when the cutting tooth sleeve is subjected to working load and impact force, the cutting tooth sleeve is prevented from falling off. The elastic force of the clamp spring can provide additional fixing force so as to ensure that the cutting tooth sleeve is always kept stable, and the stability and the safety of the cutting tooth in the working process are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pick teeth, in particular to a pick tooth for preventing from falling off for mining. Background Art

[0002] A pick is a cutting tool used in mining and engineering machinery and equipment. Its main function is to cut and crush various hard materials, such as rocks, coal, etc. It is usually made of wear-resistant materials and has a sharp cutting edge, which can effectively perform cutting and crushing operations. The function of the pick is to improve the efficiency and quality of operations during engineering construction and mining. It is widely used in coal mining, tunnel engineering, road milling and other fields.

[0003] Existing, such as a mining pick in Chinese patent announcement number CN204716240U, it is mainly composed of a pick body and a carbide cutter head, the carbide cutter head is embedded in the concave hole at the end of the pick body head and fixed by brazing, and the cone surface at the end of the pick body head is provided with uniformly distributed strip grooves, in which carbide strips are embedded and fixed by brazing; the pick body includes a cylindrical pick handle at the rear and a conical pick head at the front, and the cylindrical pick handle and the conical pick head are made in one piece, the carbide cutter head is embedded in the plane head at the front end of the conical pick head through the concave hole, and 8-12 strip grooves with an axial offset of not more than 30 degrees are provided on the conical surface at the front end of the conical pick head; it has the characteristics of simple and reasonable structure, easy use, can increase the wear resistance of the product surface, reduce working friction, thereby improving the service life and use efficiency of the product.

[0004] In the prior art, since the picks usually bear huge workloads and impact forces, they may fall off or loosen during operation, which will not only affect the operating efficiency but also cause equipment damage and safety accidents. In order to ensure the stability and safety of the picks during operation, a mining pick with an anti-dropout function is needed. Utility Model Content

[0005] The utility model aims to solve the problem that the picks of the existing equipment usually bear huge workload and impact force, and may fall off or become loose during the working process, and proposes a mining anti-falling pick.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a mining anti-swinging pick, including a pick sleeve, the outer wall fixed sleeve of the pick sleeve is provided with an upper tooth ring, the bottom of the pick sleeve is fixedly installed with a lower tooth ring, the outer wall of the pick sleeve is provided with a retaining spring, and the top of the retaining spring contacts the bottom of the upper tooth ring, and the bottom of the retaining spring contacts the top of the lower tooth ring, two baffles are fixedly installed on one side of the outer wall of the retaining spring, and the tops of the two baffles are provided with retaining holes.

[0007] Preferably, the outer wall of the pick sleeve is provided with an external thread.

[0008] Preferably, a threaded column is fixedly mounted on the top of the pick sleeve.

[0009] Preferably, the outer wall of the pick sleeve is threadedly connected with a pick head.

[0010] Preferably, a thread groove is provided on the inner surface wall of the pick head.

[0011] Preferably, an internal thread is provided at the bottom of the inner wall of the thread groove, and the outer wall of the threaded column is threadably connected to the internal thread.

[0012] Preferably, the outer wall fixing sleeve of the pick head is provided with a wear-resistant sleeve.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] In the utility model, the retaining ring pliers are inserted into the retaining holes on the two baffles, moved outwards a suitable distance, and then put on the pick sleeve. The retaining ring can effectively prevent the pick sleeve from falling off during operation through the action of the retaining ring. When the pick sleeve is subjected to working load and impact force, the elastic force of the retaining ring can provide additional fixing force to ensure that the pick sleeve always remains stable, thereby improving the stability and safety of the pick during operation.

[0015] In the utility model, the pick sleeve and the pick head can be connected together through the external thread, the thread groove, the thread column and the internal thread. Secondly, through the effect of the wear-resistant sleeve, the pick plays a preliminary protective role in coal mining, thereby improving the use effect and service life of the pick. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model provides a subjective structural stereogram of a mining anti-throw-off pick;

[0017] Figure 2 The utility model provides a disassembled diagram of a mining anti-throw-off pick;

[0018] Figure 3 A partial bottom view of a mining pick that prevents falling off is provided in the utility model;

[0019] Figure 4 The utility model provides a front view of a mining anti-throw-off pick.

[0020] Legend:

[0021] 1. Pick sleeve; 2. Upper tooth ring; 3. Lower tooth ring; 4. Circlip; 5. Baffle; 6. Clamping hole; 7. External thread; 8. Threaded column; 9. Pick head; 10. Thread groove; 11. Internal thread; 12. Wear-resistant sleeve. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purposes, features and advantages of the utility model, the utility model is further described below in conjunction with the drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0024] Embodiment 1, as Figure 1-Figure 4 As shown, the utility model provides a mining anti-swing-off pick, including a pick sleeve 1, an outer wall fixed sleeve of the pick sleeve 1 is provided with an upper tooth ring 2, a lower tooth ring 3 is fixedly installed on the bottom of the pick sleeve 1, a retaining spring 4 is arranged on the outer wall of the pick sleeve 1, and the top of the retaining spring 4 contacts with the bottom of the upper tooth ring 2, and the bottom of the retaining spring 4 contacts with the top of the lower tooth ring 3, two baffles 5 are fixedly installed on one side of the outer wall of the retaining spring 4, and the tops of the two baffles 5 are provided with retaining holes 6.

[0025] The effect achieved by the entire embodiment 1 is that since the upper tooth ring 2 and the lower tooth ring 3 are installed on the outer wall of the pick sleeve 1, the retaining spring pliers are used to insert them into the two retaining holes 6 opened on the two baffles 5, and then the two baffles 5 are moved outward. Because the two baffles 5 are installed at both ends of the outer wall of the retaining spring 4, the retaining spring 4 is expanded outward to a suitable width, and then is mounted on the pick sleeve 1, and then the retaining spring pliers are released. At this time, the retaining spring 4 completely surrounds the pick sleeve 1, and fits tightly with the outer wall of the pick sleeve 1, and is simultaneously located between the upper tooth ring 2 and the lower tooth ring 3. By designing a retaining spring 4 structure at the bottom of the pick sleeve 1 or the tooth rod, the retaining spring 4 can be used to prevent the pick from falling off the pick sleeve 1. Specifically, the retaining spring 4 can provide a certain fixing force through its elastic properties to fix the tooth on the tooth sleeve to prevent it from falling off, thereby improving the stability and safety of the pick in coal mining work.

[0026] Embodiment 2, as Figure 2-Figure 4As shown, the outer wall of the pick sleeve 1 is provided with an external thread 7, a threaded column 8 is fixedly installed on the top of the pick sleeve 1, the outer wall of the pick sleeve 1 is threadedly connected with a pick head 9, the inner wall of the pick head 9 is provided with a thread groove 10, the bottom of the inner wall of the thread groove 10 is provided with an internal thread 11, and the outer wall of the threaded column 8 is threadedly connected with the internal thread 11, and the outer wall of the pick head 9 is fixedly provided with a wear-resistant sleeve 12.

[0027] The effect achieved by the entire embodiment 2 is that an external thread 7 is provided on the outer wall of the pick sleeve 1, a thread groove 10 is provided at the bottom of the pick head 9, and the pick sleeve 1 is threadedly connected to the inside of the thread groove 10 through the external thread 7. When the pick sleeve 1 is threadedly rotated toward the inside of the thread groove 10, since a thread column 8 is installed on the top of the pick sleeve 1, an internal thread 11 is provided at the bottom of the inner wall of the thread groove 10, and the outer wall of the thread column 8 is also threadedly connected to the internal thread 11, when the pick sleeve 1 is threadedly connected in the thread groove 10, its thread column 8 is also threadedly connected to the inside of the internal thread 11, thereby connecting the pick sleeve 1 and the pick head 9 together. Secondly, a wear-resistant sleeve 12 is installed on the outer wall of the pick head 9. Through the function of the wear-resistant sleeve 12, the pick has a protective and wear-resistant effect in coal mining, plays a preliminary protective role, improves the service life of the pick, and further improves the use effect of the anti-slip pick in coal mining.

[0028] Working principle: First, when the pick is needed in coal mining, the pick head 9 with the thread groove 10 is first put on the pick sleeve 1. Since the thread column 8 is fixedly installed on the top of the pick sleeve 1, and the inner thread 11 is opened at the bottom of the inner wall of the thread groove 10, the pick head 9 can be installed together with the pick sleeve 1 through the connection relationship between the external thread 7 and the thread groove 10 and the connection relationship between the thread column 8 and the inner thread 11, and the installation process is simple. Then, it is inserted into the two clamping holes 6 through the circlip pliers, and the circlip 4 is expanded outward to a suitable width through the two baffles 5, and then it is put on the upper tooth ring 2 and the lower tooth ring of the pick sleeve 1. Rings 3 are located between them, and the top of the retaining spring 4 is in contact with the bottom of the upper tooth ring 2, the bottom of the retaining spring 4 is in contact with the top of the lower tooth ring 3, and the retaining spring 4 is in close contact with the outer wall of the pick sleeve 1. When the pick sleeve 1 is subjected to the working load and impact force during coal mining, the elastic force of the retaining spring 4 can provide additional fixing force to ensure that the pick sleeve 1 and the pick head 9 always remain stable, thereby improving the stability and safety of the pick in coal mining work to prevent it from falling off. Secondly, with the mutual cooperation with the wear-resistant sleeve 12, it is ensured that the pick is not damaged during work, and the service life is increased, thereby improving the use effect of the anti-dropout pick in coal mining.

[0029] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in other forms. Any technician familiar with the profession may use the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A mining pick that prevents falling off, characterized in that: The invention comprises a pick sleeve (1), wherein an upper tooth ring (2) is fixedly mounted on the outer wall of the pick sleeve (1), a lower tooth ring (3) is fixedly mounted on the bottom of the pick sleeve (1), a retaining spring (4) is arranged on the outer wall of the pick sleeve (1), the top of the retaining spring (4) contacts the bottom of the upper tooth ring (2), and the bottom of the retaining spring (4) contacts the top of the lower tooth ring (3), and two baffles (5) are fixedly mounted on one side of the outer wall of the retaining spring (4), and retaining holes (6) are provided on the tops of the two baffles (5).

2. The anti-swing pick for mining according to claim 1 is characterized in that: The outer wall of the pick sleeve (1) is provided with an external thread (7).

3. The anti-swing pick for mining according to claim 2 is characterized in that: A threaded column (8) is fixedly mounted on the top of the pick sleeve (1).

4. The anti-swing pick for mining according to claim 3 is characterized in that: The outer wall of the pick sleeve (1) is threadedly connected with a pick head (9).

5. The anti-swing pick for mining according to claim 4 is characterized in that: The inner surface wall of the pick head (9) is provided with a thread groove (10).

6. The anti-swing pick for mining according to claim 5, characterized in that: An internal thread (11) is provided at the bottom of the inner wall of the thread groove (10), and the outer wall of the threaded column (8) is threadedly connected to the internal thread (11).

7. The anti-swing pick for mining according to claim 6, characterized in that: The outer wall fixing sleeve of the pick head (9) is provided with a wear-resistant sleeve (12).

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