Coal rock self-adaptive cutting tooth

Abstract

The utility model provides a coal rock self-adaptive cutting tooth, which relates to the technical field of cutting teeth and comprises a cutting tooth rod, a strong spring is fixedly mounted at the top of the cutting tooth rod, a telescopic rod is fixedly mounted at the top of the cutting tooth rod, the outer surface wall of the telescopic rod is communicated with the inside of the strong spring, and a cutting tooth head is fixedly mounted at the top of the strong spring. The bottom of the cutting pick head is fixedly connected with the top of the telescopic rod, and two edge blocks are fixedly installed on the outer surface wall of the cutting pick head. According to the utility model, through the self-adaptive action of the strong spring and the telescopic rod, the strong spring and the telescopic rod drive the cutting pick head to retract and effectively avoid an object with higher hardness, and under the action of the two side blocks, the two strip plates, the two limiting grooves and the two limiting blocks, the self-adaptive retraction effect of the cutting pick head is improved, and the service life of the cutting pick head is prolonged; and the quality of coal rock mining is guaranteed, and the using effect of the self-adaptive cutting tooth in coal rock mining is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting teeth, in particular to a coal-rock adaptive cutting tooth. Background Art

[0002] Cutter teeth are a tool used in coal mining, which is used to cut and crush coal rocks during the mining process. The reason why coal uses cutter teeth is that coal has high hardness and brittleness. Traditional drilling and blasting methods may not be able to effectively crush and collect coal. The cutter teeth use rotation or vibration to cut the tool or gear teeth into the coal layer, cut and crush the coal rocks, and then transport the coal to the ground through a conveying mechanism.

[0003] Existing, such as the coal-rock adaptive cutting teeth in Chinese patent number CN213360109U, belong to the technical field of mining machinery and equipment, and the cutting teeth include quick-insert rails, tooth seats, dust covers, alloy cutting teeth, cutting teeth covers, cutting teeth covers sealing threads, adaptive adjustment rods, adjustment springs, adjustment nuts and fastening nuts. When working, the size of the cutting force is adjusted according to the hardness strength difference between coal and rock. When encountering coal, it can be smoothly cut down. When encountering rock, because the strength of rock is higher than that of coal, the adjustment spring in the adaptive adjustment rod automatically retracts the alloy cutting teeth, which plays a protective role for the alloy cutting teeth, and has the effect of automatic identification of coal and rock. When encountering coal, it automatically cuts, and when encountering rock, it automatically avoids, which not only protects the alloy cutting teeth but also reduces the amount of gangue in the coal. In addition, the alloy cutting teeth can also have a certain automatic compensation function and are easy to replace.

[0004] In the prior art, when the cutting teeth are used to mine coal, hard objects with greater strength or hardness than coal may be encountered, which may cause surface damage to the cutting teeth and reduce the service life of the cutting teeth, thereby requiring a coal-rock adaptive cutting tooth. Utility Model Content

[0005] The utility model aims to solve the problem that when the existing equipment is in use, it may encounter hard objects with greater strength or hardness than coal, which may cause surface damage to the cutting teeth and reduce the service life of the cutting teeth. A coal-rock adaptive cutting tooth is proposed.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a coal and rock adaptive cutting tooth, including a cutting tooth rod, a strong spring is fixedly installed on the top of the cutting tooth rod, a telescopic rod is fixedly installed on the top of the cutting tooth rod, and the outer wall of the telescopic rod is connected to the inner part of the strong spring, a cutting tooth head is fixedly installed on the top of the strong spring, and the bottom of the cutting tooth head is fixedly connected to the top of the telescopic rod, two side blocks are fixedly installed on the outer wall of the cutting tooth head, and long strips are fixedly installed on one side of the outer wall of the two side blocks, and one side of the outer wall of the two long strips is in contact with the outer wall of the cutting tooth rod.

[0007] Preferably, two limiting grooves are provided on the outer wall of the pick rod.

[0008] Preferably, the inner surface walls of the two limiting grooves are movably embedded with limiting blocks, and one side of the outer wall of the two long strips is fixedly connected to the opposite side of the outer wall of the two limiting blocks.

[0009] Preferably, a wear-resistant sleeve is fixedly mounted on the outer wall of the pick head.

[0010] Preferably, a circular protective frame is fixedly mounted on the top of the pick rod.

[0011] Preferably, two visual panels are fixedly mounted on the outer wall of the circular protective frame.

[0012] Preferably, a circular groove is formed at the bottom of the pick head, and the outer wall of the circular protective frame is movably inserted into the circular groove.

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

[0014] In the utility model, when the cutting teeth are used to mine coal and encounter an object with greater hardness, the adaptive action of the strong spring and the telescopic rod causes the cutting tooth head to retract and effectively avoid the object with greater hardness. Secondly, under the action of the two side blocks, the two long strips, the two limit grooves and the two limit blocks, the adaptive retraction effect of the cutting tooth head is improved, and the service life of the cutting tooth head is increased, thereby ensuring the quality of the mined coal and rock, and further improving the use effect of the adaptive cutting teeth in coal and rock mining.

[0015] In the utility model, the wear-resistant sleeve is used to provide a wear-resistant protection for the cutting tooth head. Secondly, the circular protection frame is used to protect the strong spring and the telescopic rod. When the cutting tooth head is adaptively retracted, the circular protection frame moves inside the circular groove and can still protect it to prevent impurities from getting stuck in it during mining, which would affect the use effect of the adaptive cutting tooth. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A subjective structural stereogram of a coal-rock adaptive cutting tooth is proposed for the utility model;

[0017] Figure 2 A front view of a coal-rock adaptive cutting tooth is proposed for the utility model;

[0018] Figure 3 A split diagram of a coal-rock adaptive cutting tooth is proposed for the utility model;

[0019] Figure 4 A partial split diagram of a coal-rock adaptive cutting tooth is proposed for the utility model;

[0020] Figure 5 A partial upward split diagram of a coal-rock adaptive cutting tooth is proposed for the utility model.

[0021] Legend:

[0022] Pick rod; 2. Strong spring; 3. Telescopic rod; 4. Pick head; 5. Edge block; 6. Long strip; 7. Limit groove; 8. Limit block; 9. Wear-resistant sleeve; 10. Circular protective frame; 11. Visual plate; 12. Circular groove. DETAILED DESCRIPTION

[0023] 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.

[0024] 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.

[0025] Embodiment 1, as Figure 1-Figure 5 As shown, the utility model provides a coal rock adaptive cutting tooth, including a cutting tooth rod 1, a strong spring 2 is fixedly installed on the top of the cutting tooth rod 1, a telescopic rod 3 is fixedly installed on the top of the cutting tooth rod 1, and the outer wall of the telescopic rod 3 is connected to the inner part of the strong spring 2, a cutting tooth head 4 is fixedly installed on the top of the strong spring 2, and the bottom of the cutting tooth head 4 is fixedly connected to the top of the telescopic rod 3, two side blocks 5 are fixedly installed on the outer wall of the cutting tooth head 4, one side of the outer wall of the two side blocks 5 is fixedly installed with a long strip 6, and one side of the outer wall of the two long strips 6 is in contact with the outer wall of the cutting tooth rod 1, the outer wall of the cutting tooth rod 1 is provided with two limiting grooves 7, the inner walls of the two limiting grooves 7 are movably embedded with limiting blocks 8, and one side of the outer wall of the two long strips 6 is fixedly connected to the opposite side of the outer wall of the two limiting blocks 8.

[0026] The effect achieved by the entire embodiment 1 is that when the pick head 4 is used in coal and rock mining, an adaptive retraction effect is achieved by installing a strong spring 2 and a telescopic rod 3 between the pick head 4 and the pick rod 1, wherein the telescopic rod 3 always keeps the strong spring 2 working in a straight line, and then side blocks 5 are installed on both sides of the pick head 4, and long strips 6 are installed on one side of the two side blocks 5. Since two limit grooves 7 are provided on the outer wall of the pick rod 1, and the limit blocks 8 movably embedded in the inner walls of the two limit grooves 7 and one side of the two long strips 6 are fixedly connected Then the two long plates 6 contact the outer wall of the pick rod 1, and when the long plates 6 move, the two limit grooves 7 are always blocked to prevent impurities from entering the limit grooves 7 during mining and affecting the movement of the two limit blocks 8 in the two limit grooves 7. Therefore, when the pick head 4 adaptively retracts, the two long plates 6 drive the two limit blocks 8 to move in the two limit grooves 7, further improving the adaptive retraction effect of the pick head 4, preventing the pick head 4 from being damaged, and increasing the service life of the pick head 4, thereby improving the use effect of the adaptive cutting tooth in coal and rock mining.

[0027] Embodiment 2, as Figure 2-Figure 5 As shown, a wear-resistant sleeve 9 is fixedly installed on the outer wall of the pick head 4, a circular protective frame 10 is fixedly installed on the top of the pick rod 1, two visual panels 11 are fixedly installed on the outer wall of the circular protective frame 10, a circular groove 12 is opened at the bottom of the pick head 4, and the outer wall of the circular protective frame 10 is movably inserted into the inside of the circular groove 12.

[0028] The effect achieved by the entire embodiment 2 is that, by installing a wear-resistant sleeve 9 on the outer wall of the pick head 4, a wear-resistant protection is provided for the pick head 4. Secondly, a circular groove 12 is provided at the bottom of the pick head 4, and a circular protective frame 10 is fixedly installed on the top of the pick rod 1, and the circular protective frame 10 is movably inserted in the circular groove 12. The circular protective frame 10 provides a protective effect on the strong spring 2 and the telescopic rod 3, effectively preventing impurities from entering the strong spring 2 during coal and rock mining, affecting the adaptive retraction effect of the pick head 4, and while the pick head 4 is adaptively retracting, the circular protective frame 10 is movably inserted in the circular groove 12, and can still provide a protective effect on the strong spring 2 and the telescopic rod 3. Then, under the action of the visual panel 11, it is possible to observe whether the internal strong spring 2 is damaged, and then replace it, thereby further improving the use effect of the adaptive cutting tooth.

[0029] Working principle: First, when the pick head 4 is used in coal and rock mining, the wear-resistant sleeve 9 plays a preliminary wear-resistant protection role for the pick head 4, and then the strong spring 2 and the telescopic rod 3 are used to make the pick head 4 adaptively retract to avoid damage. At the same time, the side blocks 5 and the long strips 6 installed on both sides of the pick head 4 drive the two limit blocks 8 to move up and down inside the two limit grooves 7, ensuring the stability of the adaptive retraction of the pick head 4. Secondly, the circular protective frame 10 installed on the pick rod 1 is movably inserted in the circular groove 12 opened at the bottom of the pick head 4. While preventing impurities from entering the strong spring 2 during mining, the stability and effect of the adaptive retraction of the pick head 4 are still improved. The two long strips 6 always block the two limit grooves 7, effectively preventing impurities from entering the limit grooves 7 during mining, and affecting the movement of the two limit blocks 8 and the two long strips 6. In general, through the action of the adaptive cutting teeth, the service life and use effect of the adaptive cutting teeth in coal and rock mining are improved.

[0030] 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 coal-rock adaptive cutting tooth, characterized in that: The invention comprises a pick rod (1), a strong spring (2) is fixedly mounted on the top of the pick rod (1), a telescopic rod (3) is fixedly mounted on the top of the pick rod (1), and the outer wall of the telescopic rod (3) is connected to the inside of the strong spring (2), a pick head (4) is fixedly mounted on the top of the strong spring (2), and the bottom of the pick head (4) is fixedly connected to the top of the telescopic rod (3), and two side blocks (5) are fixedly mounted on the outer wall of the pick head (4), and a long strip plate (6) is fixedly mounted on one side of the outer wall of the two side blocks (5), and one side of the outer wall of the two long strip plates (6) is in contact with the outer wall of the pick rod (1).

2. The coal-rock adaptive cutting tooth according to claim 1, characterized in that: The outer wall of the pick rod (1) is provided with two limiting grooves (7).

3. The coal-rock adaptive cutting tooth according to claim 2, characterized in that: The inner surface walls of the two limit grooves (7) are both movably embedded with limit blocks (8), and one side of the outer wall of the two long strips (6) is fixedly connected to the opposite side of the outer wall of the two limit blocks (8).

4. The coal-rock adaptive cutting tooth according to claim 3, characterized in that: A wear-resistant sleeve (9) is fixedly mounted on the outer wall of the pick head (4).

5. The coal-rock adaptive cutting tooth according to claim 4, characterized in that: A circular protective frame (10) is fixedly mounted on the top of the pick rod (1).

6. The coal-rock adaptive cutting tooth according to claim 5, characterized in that: Two visual panels (11) are fixedly mounted on the outer wall of the circular protective frame (10).

7. The coal-rock adaptive cutting tooth according to claim 6, characterized in that: A circular groove (12) is provided at the bottom of the pick head (4), and the outer wall of the circular protection frame (10) is movably inserted into the interior of the circular groove (12).

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