High-wear-resistance coal cutting pick

Abstract

The utility model relates to the technical field of coal cutting picks, and discloses a high-wear-resistance coal cutting pick which comprises a base, a first through groove is formed in one side of the base, a quick release structure is fixedly installed in the first through groove, the quick release structure comprises a cylinder, an inner hexagonal groove, a first threaded groove, a spring, a fixing plate and a clamping block, the cylinder is movably installed in the first through groove, and the first threaded groove is fixedly installed in the cylinder. An inner hexagonal groove is formed in one side of the cylinder, a first threaded groove is formed in the circumferential side face of the cylinder, a spring is movably installed on the other side of the cylinder, a fixing plate is fixedly installed at one end of the spring, and a clamping block is movably installed on one side of the fixing plate. The coal cutting pick can be detached from the interior of the base by detaching the quick detaching structure from the interior of the groove, time and labor are saved during detaching, and practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal pick equipment, in particular to a highly wear-resistant coal pick. Background Art

[0002] Coal pick is a high-quality tungsten steel pick specially designed for coal mining machines. It is made by mixing tungsten carbide and cobalt powder, pressing and sintering through a series of metallurgical powder process methods such as ball milling. It has the characteristics of high strength, good wear resistance and long service life. It is widely used in various coal mining machines and roadheaders for engineering projects such as roadways, tunnels, and ground trenching.

[0003] A utility model patent application, publication number "CN210317306U," discloses a coal pick consisting primarily of a base, a drill bit, a cap, a mounting rod, a high-strength frustum, wear strips, and a tapered waist. This technical solution offers high overall hardness, excellent wear resistance, and reliable operation. The wear strips also participate in coal cutting, improving mining efficiency.

[0004] The coal pick disclosed in the above document has the following defects: the technical solution does not have a quick-disassembly structure when disassembling from the base, which makes disassembly troublesome, time-consuming and labor-intensive, and the drill bit needs to be replaced as a whole if it is damaged, which is costly.

[0005] It can be seen from this that the existing coal pick does not have a replacement structure, and it is necessary to improve the existing shortcomings and provide a highly wear-resistant coal pick. Utility Model Content

[0006] The purpose of the utility model is to provide a highly wear-resistant coal pick to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0008] The utility model is a highly wear-resistant coal pick, comprising a base, a first through slot being provided on one side of the base, a quick-release structure being fixedly installed inside the first through slot, the quick-release structure comprising a cylinder, an inner hexagonal slot, a first threaded slot, a spring, a fixed plate and a clamping block, a cylinder being movably installed inside the first through slot, an inner hexagonal slot being provided on one side of the cylinder, a first threaded slot being provided on the circumferential side of the cylinder, a spring being movably installed on the other side of the cylinder, a fixed plate being fixedly installed on one end of the spring, and a clamping block being movably installed on one side of the fixed plate.

[0009] Furthermore, a first mounting rod is movably installed inside the base, and a groove is provided on the peripheral side surface of the first mounting rod, and the interior of the groove abuts against the clamping block.

[0010] Furthermore, a sealing sleeve is sleeved on the peripheral side surface of the first mounting rod, a stop plate is fixedly mounted on one end of the first mounting rod, and one end of the sealing sleeve is in contact with the stop plate.

[0011] Furthermore, a pick head is fixedly mounted on one side of the baffle plate, a threaded chip removal groove is provided on the peripheral side surface of the pick head, and a wear-resistant strip is fixedly mounted on the peripheral side surface of the pick head.

[0012] Furthermore, a second through slot is provided at one end of the pick head, and the second through slot extends to one end of the first mounting rod. A positioning hole is provided at one end of the pick head, and the number of the positioning holes is fixed at four.

[0013] Furthermore, a wear-resistant head assembly is movably installed inside the second through groove, and the wear-resistant head assembly includes a second mounting rod, a second threaded groove, a cap, a drill bit and a first positioning column. The second mounting rod is movably installed inside the second through groove, and a second threaded groove is provided on the peripheral side surface of the second mounting rod. A cap is movably installed on the peripheral side surface of the second threaded groove, and a drill bit is fixedly installed on the upper surface of the second mounting rod, and a first positioning column is fixedly installed on the lower surface of the drill bit, and the first positioning column is clamped with the positioning hole.

[0014] The utility model has the following beneficial effects:

[0015] (1) The utility model is provided with a quick-release structure and a groove. The first mounting rod is installed inside the base. Since the upper side of the card block is designed with an arc, the spring can be pressed downward, and the card block also shrinks into the inside of the first through groove. When the groove and the card block coincide with each other, the card block pops out and is stuck into the inside of the groove, locking the first mounting rod so that it cannot be pulled upward. When disassembling, the tool is inserted into the hexagonal groove and twisted to remove the quick-release structure to complete the disassembly. The installation and disassembly are convenient, fast, and labor-saving.

[0016] (2) The utility model provides a wear-resistant head assembly. When the drill bit is damaged, the cap can be unscrewed and the drill bit can be pulled up to complete the replacement. The drill bit can be replaced individually to save costs.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1This is a schematic diagram of the decomposition structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the overall structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the wear-resistant head assembly of the utility model;

[0022] Figure 4 This is a schematic diagram of the quick-release structure of the utility model;

[0023] Figure 5 This is a schematic diagram of the utility model's split top structure;

[0024] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0025] In the figure: 1. base; 101. first through groove; 2. quick-release structure; 201. cylinder; 202. hexagonal groove; 203. first threaded groove; 204. spring; 205. fixing plate; 206. clamping block; 3. first mounting rod; 301. groove; 4. sealing sleeve; 5. baffle plate; 6. pick head; 7. threaded chip groove; 8. wear-resistant strip; 9. wear-resistant head assembly; 901. second mounting rod; 902. second threaded groove; 903. cap; 904. drill bit; 905. first positioning column; 10. positioning hole; 11. second through groove. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1 - Figure 5 As shown, the utility model is a highly wear-resistant coal pick, comprising a base 1, a first through groove 101 being provided on one side of the base 1, a quick-release structure 2 being fixedly installed inside the first through groove 101, the quick-release structure 2 comprising a cylinder 201, an inner hexagonal groove 202, a first threaded groove 203, a spring 204, a fixed plate 205 and a clamping block 206, a cylinder 201 being movably installed inside the first through groove 101, an inner hexagonal groove 202 being provided on one side of the cylinder 201, a first threaded groove 203 being provided on the circumferential side surface of the cylinder 201, a spring 204 being movably installed on the other side of the cylinder 201, a fixed plate 205 being fixedly installed on one end of the spring 204, and a clamping block 206 being movably installed on one side of the fixed plate 205.

[0028] A first mounting rod 3 is movably mounted inside the base 1 . A groove 301 is formed on a peripheral side surface of the first mounting rod 3 . The interior of the groove 301 abuts against the clamping block 206 .

[0029] A sealing sleeve 4 is sleeved on the peripheral side surface of the first mounting rod 3 , and a retaining plate 5 is fixedly mounted on one end of the first mounting rod 3 , and one end of the sealing sleeve 4 is in contact with the retaining plate 5 .

[0030] A pick head 6 is fixedly mounted on one side of the baffle plate 5 , a threaded chip removal groove 7 is provided on the peripheral side surface of the pick head 6 , and a wear-resistant strip 8 is fixedly mounted on the peripheral side surface of the pick head 6 .

[0031] A second through slot 11 is defined at one end of the pick head 6 , and the second through slot 11 extends to one end of the first mounting rod 3 . A positioning hole 10 is defined at one end of the pick head 6 , and the number of the positioning holes 10 is fixed at four.

[0032] A wear-resistant head assembly 9 is movably installed inside the second through groove 11, and the wear-resistant head assembly 9 includes a second mounting rod 901, a second threaded groove 902, a cap 903, a drill bit 904 and a first positioning column 905. The second mounting rod 901 is movably installed inside the second through groove 11, and a second threaded groove 902 is provided on the peripheral side surface of the second mounting rod 901. A cap 903 is movably installed on the peripheral side surface of the second threaded groove 902. A drill bit 904 is fixedly installed on the upper surface of the second mounting rod 901, and a first positioning column 905 is fixedly installed on the lower surface of the drill bit 904. The first positioning column 905 is clamped with the positioning hole 10.

[0033] When in use, the first mounting rod 3 is installed into the interior of the base 1. Since the upper side of the block 206 is designed with an arc, the spring 204 can be pressed downward, and the block 206 also shrinks toward the inside of the first through groove 101. When the groove 301 coincides with the block 206, the block 206 pops out and is stuck into the inside of the groove 301, locking the first mounting rod 3 and preventing it from being pulled upward. When disassembling, insert the tool into the inner groove 301 and twist it to take out the quick-release structure 2 to complete the disassembly. The installation and disassembly are convenient, fast and manpower-saving. When the drill bit 904 is damaged, the cap 903 can be unscrewed and the drill bit 904 can be pulled upward to complete the replacement.

[0034] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A highly wear-resistant coal pick, comprising a base (1), characterized in that: A first through slot (101) is provided on one side of the base (1), and a quick-release structure (2) is fixedly installed inside the first through slot (101); A first mounting rod (3) is movably mounted inside the base (1), a groove (301) is provided on the peripheral side surface of the first mounting rod (3), and the interior of the groove (301) abuts against the clamping block (206); A sealing sleeve (4) is sleeved on the peripheral side surface of the first mounting rod (3); a retaining plate (5) is fixedly mounted on one end of the first mounting rod (3); and one end of the sealing sleeve (4) is in contact with the retaining plate (5); A pick head (6) is fixedly mounted on one side of the baffle plate (5), a threaded chip removal groove (7) is provided on the peripheral side surface of the pick head (6), and a wear-resistant strip (8) is fixedly mounted on the peripheral side surface of the pick head (6).

2. A highly wear-resistant coal pick according to claim 1, characterized in that: The quick-release structure (2) comprises a cylinder (201), an inner hexagonal groove (202), a first thread groove (203), a spring (204), a fixing plate (205) and a clamping block (206); the cylinder (201) is movably mounted inside the first through groove (101); one side of the cylinder (201) is provided with an inner hexagonal groove (202); the circumferential side surface of the cylinder (201) is provided with a first thread groove (203); the other side of the cylinder (201) is movably mounted with a spring (204); one end of the spring (204) is fixedly mounted with a fixing plate (205); and one side of the fixing plate (205) is movably mounted with a clamping block (206).

3. The highly wear-resistant coal pick according to claim 1, characterized in that: A second through slot (11) is formed at one end of the pick head (6), and the second through slot (11) extends to one end of the first mounting rod (3). A positioning hole (10) is formed at one end of the pick head (6), and the number of the positioning holes (10) is fixed at four.

4. A highly wear-resistant coal pick according to claim 3, characterized in that: A wear-resistant head assembly (9) is movably mounted inside the second through groove (11), and the wear-resistant head assembly (9) comprises a second mounting rod (901), a second threaded groove (902), a cover cap (903), a drill bit (904) and a first positioning column (905); the second mounting rod (901) is movably mounted inside the second through groove (11), a second threaded groove (902) is provided on a peripheral side surface of the second mounting rod (901), a cover cap (903) is movably mounted on a peripheral side surface of the second threaded groove (902), a drill bit (904) is fixedly mounted on an upper surface of the second mounting rod (901), a first positioning column (905) is fixedly mounted on a lower surface of the drill bit (904), and the first positioning column (905) is snap-fitted with the positioning hole (10).

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