Pickaxe-shaped cutting pick

Abstract

The utility model discloses a pickaxe-shaped cutting pick. The pickaxe-shaped cutting pick comprises a pick body assembly, a pick head, a hard alloy head and a ball type wear-resistant layer assembly, a rib type reinforcing rib assembly is installed on the outer wall of the tooth body assembly. The tooth head is of a cone frustum structure, and the bottom face of the tooth head is fixedly connected with the top face of the tooth body assembly. The hard alloy head is mounted on the top surface of the tooth head; the ball type wear-resistant layer assembly comprises a plurality of wear-resistant balls and a plurality of mounting grooves, and the mounting grooves are formed in the side wall of the tooth head in the circumferential direction. Through the arrangement of the mounting grooves and the wear-resistant balls, the eccentric wear phenomenon of the wear-resistant layer is avoided, the effect of protecting the pickaxe-shaped cutting pick is achieved, meanwhile, the use performance of the wear-resistant layer is improved, and the service life of the wear-resistant layer is prolonged; through the arrangement of the rib type reinforcing rib assembly, the effect of protecting the pick body assembly can be achieved, the spinning performance of the pickaxe-shaped cutting pick can be optimized, and the overall working efficiency and production efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mining machinery, in particular to a pick-shaped cutting tooth. Background Art

[0002] Picks are tools used on coal mining machines and tunneling machines. Only with picks can coal mining and tunneling work be carried out. However, in actual work, pick failure problems occur from time to time, which is very detrimental to the smooth development of production. Wear is the main form of failure, and the phenomenon of eccentric wear of picks is relatively serious. Picks will produce certain wear during operation, especially wear at the head of the tooth body will produce certain pressure, thereby reducing the support performance of the cutter head and causing the alloy cutter head to fall off. Uncontrolled eccentric wear will also reduce the cutting performance of the pick. When the pick is subjected to uneven force, the cutter head is prone to breakage or cracking. This requires that the pick head and tooth body should have good wear resistance. In order to reduce the occurrence of eccentric wear, the spin performance of the pick needs to be further optimized.

[0003] In the prior art, the wear-resistant layer of the pick-shaped pick is usually installed on the tooth head by welding. During the operation of the pick-shaped pick, eccentric wear is very likely to occur, which has a poor protective effect on the tooth body and requires frequent replacement, greatly affecting the service life and working efficiency of the pick-shaped pick. The failure of the pick-shaped pick due to eccentric wear of the tooth head and tooth body also accounts for a large proportion of the pick failure, indicating that the self-spinning performance of the pick-shaped pick also needs to be optimized.

[0004] For this purpose, a pick-shaped cutting tooth is proposed. Utility Model Content

[0005] The utility model aims to provide a pick-shaped cutting tooth, aiming to solve or improve at least one of the above-mentioned technical problems.

[0006] To achieve the above purpose, the utility model provides the following solution: The utility model provides a pick-shaped pick, comprising:

[0007] A tooth body assembly, wherein a rib reinforcement assembly is installed on the outer wall of the tooth body assembly;

[0008] A tooth head, wherein the tooth head is a truncated cone structure, and the bottom surface of the tooth head is fixedly connected to the top surface of the tooth body assembly;

[0009] A cemented carbide head, the cemented carbide head being mounted on the top surface of the tooth head;

[0010] A ball-type wear-resistant layer assembly comprises a plurality of wear-resistant balls and a plurality of mounting grooves, wherein the plurality of mounting grooves are circumferentially arranged on the side wall of the tooth head, and the plurality of wear-resistant balls are respectively rollingly connected in the plurality of mounting grooves.

[0011] According to a pick-shaped pick provided by the utility model, the tooth body assembly includes a pick body, the tooth head is installed on the top of the pick body, and the pick body is fixed with a tooth shoulder and the rib reinforcement rib assembly; the rib reinforcement rib assembly is arranged between the tooth shoulder and the tooth head.

[0012] According to a pick-shaped pick provided by the utility model, a tooth sleeve is sleeved on the bottom of the pick tooth body, and the pick tooth body and the tooth sleeve are connected by a retaining spring.

[0013] According to a pick-shaped pick provided by the utility model, the rib reinforcement rib assembly includes a plurality of rib reinforcement rib structures, a plurality of the rib reinforcement rib structures are fixedly connected to the outer wall of the pick tooth body, and a plurality of the rib reinforcement rib structures are arranged circumferentially at equal intervals along the outer wall of the pick tooth body; the rib reinforcement rib structure is arranged between the tooth shoulder and the tooth head.

[0014] According to a pick-shaped pick provided by the utility model, the number of the rib-type reinforcement rib structures is four groups, and the four groups of the rib-type reinforcement rib structures are arranged at equal intervals circumferentially along the outer wall of the pick tooth body.

[0015] According to the pick-shaped cutting tooth provided by the utility model, a plurality of the mounting grooves are arranged at equal intervals along the circumferential direction of the side wall of the tooth head.

[0016] According to a pick-shaped cutting tooth provided by the utility model, the number of the wear-resistant balls and the mounting grooves are both four, the four mounting grooves are opened at equal intervals along the circumferential direction of the side wall of the tooth head, and the four wear-resistant balls are respectively rollingly connected in the four mounting grooves.

[0017] According to a pick-shaped pick provided by the utility model, the cross-section of the rib-type reinforcement structure is a triangle.

[0018] The utility model discloses the following technical effects:

[0019] The utility model provides a plurality of installation grooves on the tooth head, and wear-resistant balls are connected and rolled in the installation grooves. During operation, the wear-resistant balls will contact the coal seam before the tooth head, and because of their self-spinning performance, the wear-resistant balls can roll freely in the installation grooves, thereby avoiding the occurrence of eccentric wear of the wear-resistant layer, and also plays a role in protecting the pick-shaped cutting teeth to a great extent, while improving the performance and service life of the wear-resistant layer, thereby improving the working efficiency and service life of the cutting teeth;

[0020] The utility model not only reduces the severe wear of the tooth head caused by the eccentric wear phenomenon of the traditional wear-resistant layer, but also avoids the frequent replacement of the wear-resistant layer, effectively protects the tooth body, and prolongs the service life of the tooth body. The installation method is also more convenient and quick, which not only prolongs the service life of the pick-shaped cutting teeth, but also greatly improves the work efficiency.

[0021] The utility model installs a rib-type reinforcement rib assembly on the outer wall of the tooth body assembly, which will contact the coal seam before the tooth body assembly during work. It can not only protect the tooth body assembly to a certain extent and reduce tooth body wear, but also optimize the spin performance of the pick-shaped cutting tooth to a great extent, thereby improving the working performance of the pick-shaped cutting tooth, extending the service life of the cutting tooth, improving the overall work efficiency and production efficiency, and having strong practicality in the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the structure of the utility model;

[0024] Figure 2 It is a structural schematic diagram of the ball-type wear-resistant layer structure in the utility model;

[0025] Figure 3 It is a top view of the utility model;

[0026] Figure 4 It is a structural schematic diagram of the rib-type reinforcing rib structure of the utility model;

[0027] Figure 5 This is a schematic diagram of the structure of the ball-type wear-resistant layer in the utility model.

[0028] Among them, 1. Carbide head; 2. Tooth head; 3. Ball-type wear-resistant layer structure; 4. Rib-type reinforcement structure; 5. Tooth shoulder; 6. Tooth body; 7. Mounting groove; 8. Wear-resistant ball. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0031] Reference Figure 1-Figure 5 The utility model provides a pick-shaped cutting tooth, comprising:

[0032] A tooth body assembly, wherein a rib reinforcement assembly is installed on the outer wall of the tooth body assembly;

[0033] The tooth head 2 is a truncated cone structure, and the bottom surface of the tooth head 2 is fixedly connected to the top surface of the tooth body assembly;

[0034] A cemented carbide head 1, which is mounted on the top surface of the tooth head 2;

[0035] The ball-type wear-resistant layer assembly includes a plurality of wear-resistant balls 8 and a plurality of mounting grooves 7. The plurality of mounting grooves 7 are circumferentially arranged on the side wall of the tooth head 2. The plurality of wear-resistant balls 8 are respectively rollingly connected in the plurality of mounting grooves 7.

[0036] In this way, the utility model provides a plurality of mounting grooves 7 on the tooth head 2, and a wear-resistant ball 8 is connected in a rolling manner in the mounting groove 7. During operation, the wear-resistant ball 8 will contact the coal seam before the tooth head 2, and because of its self-spinning performance, the wear-resistant ball 8 can roll freely in the mounting groove 7, thereby avoiding the occurrence of eccentric wear of the wear-resistant layer, and also plays a role in protecting the pick-shaped cutting teeth to a great extent, while improving the performance and service life of the wear-resistant layer, thereby improving the working efficiency and service life of the cutting teeth;

[0037] The utility model not only reduces the severe wear of the tooth head caused by the eccentric wear phenomenon of the traditional wear-resistant layer, but also avoids the frequent replacement of the wear-resistant layer, effectively protects the tooth body, and prolongs the service life of the tooth body. The installation method is also more convenient and quick, which not only prolongs the service life of the pick-shaped cutting teeth, but also greatly improves the work efficiency.

[0038] The utility model installs a rib-type reinforcement rib assembly on the outer wall of the tooth body assembly, which will contact the coal seam before the tooth body assembly during work. It can not only protect the tooth body assembly to a certain extent and reduce tooth body wear, but also optimize the spin performance of the pick-shaped cutting tooth to a great extent, thereby improving the working performance of the pick-shaped cutting tooth, extending the service life of the cutting tooth, improving the overall work efficiency and production efficiency, and having strong practicality in the production process.

[0039] According to a further optimized solution, the tooth body assembly includes a pick tooth body 6, a tooth head 2 is installed on the top of the pick tooth body 6, a tooth shoulder 5 and a rib reinforcement rib assembly are fixedly connected to the pick tooth body 6; the rib reinforcement rib assembly is arranged between the tooth shoulder 5 and the tooth head 2.

[0040] According to a further optimized solution, a tooth sleeve is sleeved on the bottom of the pick tooth body 6, and the pick tooth body 6 and the tooth sleeve are connected by a retaining spring, so that the installation is convenient and quick.

[0041] A further optimized solution is that the rib reinforcement assembly includes a plurality of rib reinforcement structures 4, the plurality of rib reinforcement structures 4 are fixedly connected to the outer wall of the pick tooth body 6, and the plurality of rib reinforcement structures 4 are circumferentially arranged at equal intervals along the outer wall of the pick tooth body 6; the rib reinforcement structure 4 is arranged between the tooth shoulder 5 and the tooth head 2; the rib reinforcement structure 4 will also contact the coal seam before the pick tooth body 6 during work, thereby protecting the pick tooth body 6 to a great extent, thereby increasing the service life of the pick tooth.

[0042] According to a further optimization scheme, the number of the rib-type reinforcement rib structures 4 is four groups, and the four groups of rib-type reinforcement rib structures 4 are arranged at equal intervals in the circumferential direction along the outer wall of the pick tooth body 6 .

[0043] According to a further optimized solution, a plurality of mounting grooves 7 are provided at equal intervals along the circumferential direction of the side wall of the tooth head 2 .

[0044] According to a further optimization scheme, the number of wear-resistant balls 8 and mounting grooves 7 are both four, and the four mounting grooves 7 are opened at equal intervals along the circumferential direction of the side wall of the tooth head 2, and the four wear-resistant balls 8 are respectively rollingly connected in the four mounting grooves 7.

[0045] According to a further optimization scheme, the cross-section of the rib-type reinforcement structure 4 is triangular to maximize its structural strength and stability.

[0046] Attached Figure 5 In the figure, d is the mounting hole diameter of the mounting groove 7; D is the maximum diameter of the mounting groove 7; D1 is the diameter of the wear-resistant ball 8, wherein d<D1<D.

[0047] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0048] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, and are not intended to limit the implementation methods of the present invention. For ordinary technical users in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A pick-shaped pick, characterized in that: include: A tooth body assembly, wherein a rib reinforcement assembly is installed on the outer wall of the tooth body assembly; A tooth head (2), the tooth head (2) being a truncated cone structure, the bottom surface of the tooth head (2) being fixedly connected to the top surface of the tooth body assembly; A cemented carbide head (1), the cemented carbide head (1) being mounted on the top surface of the tooth head (2); A ball-type wear-resistant layer assembly, the ball-type wear-resistant layer assembly comprising a plurality of wear-resistant balls (8) and a plurality of mounting grooves (7), the plurality of mounting grooves (7) being circumferentially arranged on the side wall of the tooth head (2), and the plurality of wear-resistant balls (8) being respectively rollingly connected in the plurality of mounting grooves (7).

2. The pick-shaped pick according to claim 1, characterized in that: The tooth body assembly comprises a pick tooth body (6), the tooth head (2) is mounted on the top of the pick tooth body (6), a tooth shoulder (5) and the rib reinforcement rib assembly are fixedly connected to the pick tooth body (6); the rib reinforcement rib assembly is arranged between the tooth shoulder (5) and the tooth head (2).

3. The pick-shaped pick according to claim 2, characterized in that: A tooth sleeve is sleeved on the bottom of the pick tooth body (6), and the pick tooth body (6) is connected to the tooth sleeve via a retaining spring.

4. The pick-shaped pick according to claim 2, characterized in that: The rib reinforcement rib assembly comprises a plurality of rib reinforcement rib structures (4), wherein the plurality of rib reinforcement rib structures (4) are fixedly connected to the outer wall of the pick tooth body (6), and the plurality of rib reinforcement rib structures (4) are arranged at equal intervals in the circumferential direction along the outer wall of the pick tooth body (6); the rib reinforcement rib structure (4) is arranged between the tooth shoulder (5) and the tooth head (2).

5. The pick-shaped pick according to claim 4, characterized in that: The number of the rib-type reinforcing rib structures (4) is four groups, and the four groups of the rib-type reinforcing rib structures (4) are arranged at equal intervals in the circumferential direction along the outer wall of the pick tooth body (6).

6. The pick-shaped pick according to claim 1, characterized in that: A plurality of the mounting grooves (7) are arranged at equal intervals along the circumferential direction of the side wall of the tooth head (2).

7. The pick-shaped pick according to claim 6, characterized in that: The number of the wear-resistant balls (8) and the number of the mounting grooves (7) are both four. The four mounting grooves (7) are arranged at equal intervals along the circumferential direction of the side wall of the tooth head (2). The four wear-resistant balls (8) are respectively rollingly connected in the four mounting grooves (7).

8. The pick-shaped pick according to claim 4, characterized in that: The cross section of the rib-type reinforcing rib structure (4) is triangular.

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