Quickly detachable fixed structure of coal cutter pick

Abstract

The utility model discloses a quick dismounting's coal -winning machine picks fixed structure belongs to coal -winning equipment technical field, including mounting seat and pick body, and the side of mounting seat has opened the installation slot, and its bottom surface has opened the first recess, and the side of pick body is fixed with the installation post, and the both ends of installation slot side wall all have opened two second recesses, and the both ends of its side all have opened two clamping grooves to the installation post through the installation slot, and the second recess is equipped with the moving link, and its bottom surface opens the straight slot that extends to the first recess, and the one end of moving link is fixed with the clamping block, and its one end opens the round groove, and the round groove is slidably connected with the cylinder, and the one end of cylinder is fixed in the side wall of second recess, be equipped with drive assembly and two moving links in the first recess, and the one end of clamping block is located in the clamping groove, and the bottom surface of its other end is fixed with the slide bar, and two slide bars are slidably connected with the straight slot, and its other end all are fixed on the top surface of moving link, use this pick fixed structure, can quick dismounting, and the efficiency is higher, avoids the influence coal -winning operation's continuity.

Description

Technical Field

[0001] This utility model relates to the field of coal mining equipment technology, and in particular to a coal mining machine cutting tooth fixing structure that can be quickly disassembled and assembled. Background Technology

[0002] As a key component in coal mining, the reliability of the fixing structure and the efficiency of disassembly and assembly directly affect the working performance and maintenance costs of the coal mining machine. Traditional methods of fixing cutting teeth mostly use bolt fastening or welding, which are cumbersome and time-consuming to disassemble and assemble. Especially in harsh underground working conditions, frequent replacement of cutting teeth is inefficient and seriously affects the continuity of coal mining operations.

[0003] To address the aforementioned issues, it is urgent to design a quick-assembly and disassembly fixing structure for coal mining machine cutting teeth. Utility Model Content

[0004] The purpose of this utility model is to provide a quick-disassembly and assembly fixing structure for coal mining machine cutting teeth, so as to solve the problems that the existing coal mining machine cutting teeth are mostly fixed by bolt fastening or welding, which are cumbersome to disassemble and assemble, time-consuming, and inefficient when frequently replacing cutting teeth, thus seriously affecting the continuity of coal mining operations.

[0005] To solve the above technical problems, this utility model provides a quick-assembly and disassembly fixing structure for coal mining machine cutting teeth, including a mounting base and a cutting tooth body. The mounting base has a mounting slot on its side and a first groove on its bottom surface. A mounting post is fixed to the side of the cutting tooth body. Two second grooves are opened at both ends of the side wall of the mounting slot. The mounting post passes through the mounting slot and has two slots at both ends of its side surface. A first moving rod is provided in the second groove and a straight groove extending into the first groove is opened on its bottom surface. A locking block is fixed to one end of the first moving rod, and a circular groove is opened at the other end. A cylinder is slidably connected in the circular groove, and one end of the cylinder is fixed to the side wall of the second groove. The first groove is provided with a driving component and two moving rods. One end of the card block is located in the card slot, and the bottom surface of the other end is fixed with a sliding rod. The two sliding rods are slidably connected to the straight slot and their other ends are fixed to the top surface of the moving rod.

[0006] As a further improvement to the above technical solution: Optionally, the drive assembly includes two L-shaped rods, a rotating rod, and a cylinder. One end of the rotating rod is rotatably connected to the first groove, and a first gear and a second gear are fixed on its side. The two L-shaped rods are positioned opposite each other and are respectively fixed inside the two moving rods. Several first racks that mesh with the first gear are fixed on the side of each rod near the first gear. The cylinder is horizontally fixed to the side wall of the first groove, and its piston rod is connected to a drive rod. Several second racks that mesh with the drive rod are fixed to the side of the drive rod near the second gear.

[0007] Optionally, two first guide rods are fixed in the first groove, and connecting rods are fixed on the other side of the two L-shaped rods. Sliding sleeves are fixed at the other end of the two connecting rods, and the two sliding sleeves are slidably connected to the two first guide rods respectively.

[0008] Optionally, a second guide rod is fixed to the side of the cutting tooth body, and the second guide rod is slidably connected to the mounting base.

[0009] Optionally, the inner wall of the circular groove has two opposing limiting grooves, and two limiting blocks are fixed to the other side of the cylinder. The two limiting blocks are respectively located in the two limiting grooves and are slidably connected to them.

[0010] Optionally, two mounting blocks are fixed on both sides of the bottom surface of the mounting base, and the mounting blocks have mounting holes.

[0011] In the quick-assembly and disassembly fixing structure for coal mining cutters provided by this utility model, the mounting base has an installation slot on its side and a first groove on its bottom surface. An installation column is fixed to the side of the cutter body. Two second grooves are formed at both ends of the sidewall of the installation slot. The installation column passes through the installation slot and has two locking slots at both ends of its side surface. A first moving rod is provided in the second groove, and a straight groove extending into the first groove is formed on its bottom surface. A locking block is fixed to one end of the first moving rod, and a circular groove is formed at the other end. A cylinder is slidably connected in the circular groove, and one end of the cylinder is fixed to the sidewall of the second groove. A driving assembly and two moving rods are provided in the first groove. One end of the locking block is located in the locking groove, and a sliding rod is fixed to the bottom surface of its other end. The two sliding rods are slidably connected to the straight groove, and their other ends are fixed to the top surface of the moving rod. Using this cutting tooth fixing structure, quick assembly and disassembly are possible, resulting in high efficiency and avoiding disruption to the continuity of coal mining operations. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the quick-disassembly and assembly fixing structure for coal mining machine cutting teeth provided by this utility model; Figure 2 This is a bottom view of the quick-disassembly and assembly fixing structure for coal mining machine cutting teeth provided by this utility model; Figure 3 yes Figure 2 Sectional view of AA. Detailed Implementation

[0013] 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.

[0014] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0015] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0016] This utility model provides a quick-assembly and disassembly fixing structure for coal mining machine cutting teeth, the structure of which is as follows: Figures 1-3 As shown, the device includes a mounting base 1 and a cutting tooth body 3. The mounting base 1 has a mounting slot 2 on its side and a first groove 5 on its bottom surface. The cutting tooth body 3 has a mounting post 4 fixed on its side. The mounting slot 2 has two second grooves 24 at both ends of its side wall. The mounting post 4 passes through the mounting slot 2 and has two slots 8 at both ends of its side. The second groove 24 has a first moving rod 9 and a straight groove 13 extending into the first groove 5 on its bottom surface. One end of the first moving rod 9 is fixed with a locking block 12 and a circular groove 10 at one end. A cylinder 11 is slidably connected in the circular groove 10 and one end of the cylinder 11 is fixed to the side wall of the second groove 24. The first groove 5 has a driving assembly 6 and two moving rods 15. One end of the locking block 12 is located in the slot 8 and the bottom surface of its other end is fixed with a sliding rod 14. The two sliding rods 14 are slidably connected to the straight groove 13 and their other ends are fixed to the top surface of the moving rods 15. The use of a quick-release and detachable coal mining machine cutting tooth fixing structure allows for rapid disassembly and assembly of the cutting tooth body 3, resulting in high efficiency and avoiding disruption to the continuity of coal mining operations.

[0017] Specifically, the drive assembly 6 includes two L-shaped rods 61, a rotating rod 62, and a cylinder 66. One end of the rotating rod 62 is rotatably connected in the first groove 5, and a first gear 63 and a second gear 64 are fixed on its side. The two L-shaped rods 61 are positioned opposite each other and are respectively fixed inside the two moving rods 15. Several first racks 65 that mesh with the first gear 63 are fixed on the side of each rod. The cylinder 66 is horizontally fixed to the side wall of the first groove 5, and its piston rod is connected to a drive rod 67. Several second racks 68 that mesh with the second gear 64 are fixed on the side of the drive rod 67.

[0018] Furthermore, two first guide rods 16 are fixed in the first groove 5, and connecting rods 17 are fixed on the other side of the two L-shaped rods 61. Sliding sleeves 18 are fixed at the other end of the two connecting rods 17, and the two sliding sleeves 18 are slidably connected to the two first guide rods 16 respectively.

[0019] Furthermore, a second guide rod 21 is fixed to the side of the cutting tooth body 3, and the second guide rod 21 is slidably connected to the mounting base 1.

[0020] Furthermore, the inner wall of the circular groove 10 has two opposing limiting grooves 22, and the other side of the cylinder 11 has two limiting blocks 23 fixed thereon. The two limiting blocks 23 are respectively located in the two limiting grooves 22 and are slidably connected to them.

[0021] Furthermore, two mounting blocks 19 are fixed on both sides of the bottom surface of the mounting base 1, and mounting holes 20 are opened on the mounting blocks 19.

[0022] Operating procedures 1. Install the cutting teeth: Insert the mounting post 4 of the cutting tooth body 3 along the mounting slot 2, and the second guide rod 21 guides the cutting tooth body 3 to be accurately positioned; 2. Locking the cutting teeth: Start the cylinder 66, the piston rod retracts and drives the drive rod 67 to move to the right, the second rack 68 drives the second gear 64 to rotate counterclockwise, the rotating rod 62 drives the first gear 63 to rotate synchronously, the first rack 65 meshing with the L-shaped rods 61 on both sides moves outward, pushing the moving rod 15 and the sliding rod 14 to slide along the straight groove 13, so that the locking block 12 is embedded in the locking groove 8; 3. Disassembling the cutting tooth: The piston rod of cylinder 66 extends, the drive rod 67 moves to the left, the second gear 64 reverses and drives the first gear 63 to rotate clockwise, the L-shaped rod 61 moves inward and pulls the slide rod 14, the locking block 12 exits the locking slot 8, and the cutting tooth body 3 can be pulled out.

[0023] Beneficial effects This coal mining machine's cutting tooth fixing structure achieves efficient disassembly, assembly, and secure locking of the cutting teeth through a mechanical linkage design, significantly improving the maintenance efficiency and operational reliability of the coal mining machine. Its core advantage lies in using a rigid drive component 6 instead of traditional elastic elements. A gear and rack transmission system driven by cylinder 66 synchronously controls the advance and retreat of the two side locking blocks 12, ensuring that the cutting tooth body 3 cannot be dislodged under bidirectional force after installation, solving the technical problem of easy loosening of the cutting teeth under high vibration conditions. The sliding fit structure between the first moving rod 9 and the straight groove 13 of the locking block 12 avoids elastic fatigue failure, extending service life. Simultaneously, the design of the limiting block 23 and limiting groove 22 within the circular groove 10 effectively prevents the first moving rod 9 from deflecting, ensuring the accuracy of the locking action. The mounting base 1 and the second guide rod 21 of the cutting tooth body 3 cooperate to achieve automatic centering during installation, reducing the difficulty of manual adjustment and increasing the speed of disassembly and assembly. Furthermore, the overall structure, through the rigid connection between the mounting block 19 and the coal mining machine body, further enhances its impact resistance.

[0024] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A quick-assembly and disassembly fixing structure for coal mining machine cutting teeth, comprising a mounting base (1) and a cutting tooth body (3), characterized in that, The mounting base (1) has a mounting slot (2) on its side and a first groove (5) on its bottom surface. The cutting tooth body (3) has a mounting post (4) fixed on its side. The mounting slot (2) has two second grooves (24) on both ends of its side wall. The mounting post (4) passes through the mounting slot (2) and has two slots (8) on both ends of its side surface. The second groove (24) has a first moving rod (9) and a straight slot (13) extending into the first groove (5) on its bottom surface. One end of the first moving rod (9) is fixed with a locking block (12) and one end of it has a circular groove (10). A cylinder (11) is slidably connected in the circular groove (10) and one end of the cylinder (11) is fixed to the side wall of the second groove (24). The first groove (5) is provided with a drive assembly (6) and two moving rods (15). One end of the card block (12) is located in the card slot (8), and the bottom surface of its other end is fixed with a sliding rod (14). The two sliding rods (14) are slidably connected to the straight slot (13), and their other ends are fixed to the top surface of the moving rod (15).

2. The quick-assembly and detachable coal mining machine cutting tooth fixing structure as described in claim 1, characterized in that, The drive assembly (6) includes two L-shaped rods (61), a rotating rod (62), and a cylinder (66). One end of the rotating rod (62) is rotatably connected in the first groove (5), and a first gear (63) and a second gear (64) are fixed on its side. The two L-shaped rods (61) are positioned opposite each other and are respectively fixed inside the two moving rods (15). Several first racks (65) that mesh with the first gear (63) are fixed on the side of each rod close to the first gear (63). The cylinder (66) is horizontally fixed to the side wall of the first groove (5), and its piston rod is connected to a drive rod (67). Several second racks (68) that mesh with the drive rod (67) are fixed on the side of the drive rod (67) near the second gear (64).

3. The quick-assembly and detachable coal mining machine cutting tooth fixing structure as described in claim 2, characterized in that, Two first guide rods (16) are fixed in the first groove (5). A connecting rod (17) is fixed on the other side of each of the two L-shaped rods (61). A sliding sleeve (18) is fixed on the other end of each of the two connecting rods (17). The two sliding sleeves (18) are slidably connected to the two first guide rods (16) respectively.

4. The quick-assembly and disassembly fixing structure for coal mining machine cutting teeth as described in claim 1, characterized in that, The cutting tooth body (3) has a second guide rod (21) fixed on its side, and the second guide rod (21) is slidably connected to the mounting base (1).

5. The quick-assembly and detachable coal mining machine cutting tooth fixing structure as described in claim 1, characterized in that, The inner wall of the circular groove (10) has two opposing limiting grooves (22), and the other side of the cylinder (11) has two limiting blocks (23) fixed. The two limiting blocks (23) are respectively located in the two limiting grooves (22) and are slidably connected to them.

6. The quick-assembly and detachable coal mining machine cutting tooth fixing structure as described in claim 1, characterized in that, Two mounting blocks (19) are fixed on both sides of the bottom surface of the mounting base (1), and mounting holes (20) are opened on the mounting blocks (19).

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