Threaded chip removal type coal cutting pick

Abstract

The utility model provides a thread chip removal type coal cutting pick which comprises a cutting pick body, a butt joint groove, a positioning block, a connecting base, a butt joint column, a limiting clamping block, a pressing block, a thread base and a mounting shaft, the butt joint groove is formed in the upper end face of the cutting pick body, the positioning block is arranged in the butt joint groove, the connecting base is arranged above the cutting pick body, and the pressing block is movably arranged in the connecting base. A mounting shaft is arranged on the upper end face of the connecting base, a threaded base is arranged on the outer side face of the connecting base, a butt joint column is arranged on the lower end face of the connecting base, and a limiting clamping block is movably arranged in the butt joint column. And the device is convenient to replace and maintain, simple and convenient to operate and high in practicability.

Description

TECHNICAL FIELD

[0001] The utility model relates to a screw thread chip removal type coal cutting pick belongs to cutting pick technical field. BACKGROUND

[0002] The coal cutting pick is a high-quality tungsten steel cutting pick special for the coal cutter, is pressed, sintered by a series of metallurgical powder process methods such as tungsten carbide and cobalt powder mixing, ball milling, has the characteristics of high strength, good wear resistance, long service life, and is widely used on the heading machine of various coal cutters and roadway, tunnel, ground ditching and other engineering.

[0003] Chinese patent number CN219864995U proposes a screw thread chip removal type coal cutting pick, which is fixed at the end of the tooth head by a detachable wear-resistant head assembly. After long-term use, the wear-resistant head can be directly replaced after serious wear, and the cutting pick is fixed and connected by a cutting pick seat. Its installation and disassembly are not convenient for replacing and maintaining the cutting pick body, and the practicality is low. There is an urgent need for a screw thread chip removal type coal cutting pick to solve the above problems. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a screw thread chip removal type coal cutting pick to solve the problems raised in the background art. The utility model has a reasonable structure, facilitates the installation and disassembly of the cutting pick body, is convenient for replacing and maintaining, is simple and convenient to operate, and has strong practicality.

[0005] In order to achieve the above-mentioned purpose, the utility model is implemented by the following technical scheme: a screw thread chip removal type coal cutting pick, comprising a cutting pick body, a butt joint groove, a positioning block, a connecting seat, a butt joint column, a limiting block, a pressing block, a threaded seat and a mounting shaft, the butt joint groove is arranged on the upper end face of the cutting pick body, the positioning block is arranged inside the butt joint groove, the connecting seat is arranged above the cutting pick body, the pressing block is movably arranged inside the connecting seat, the mounting shaft is arranged on the upper end face of the connecting seat, the threaded seat is arranged on the outer side face of the connecting seat, the butt joint column is arranged on the lower end face of the connecting seat, and the limiting block is movably arranged inside the butt joint column.

[0006] Further, the butt joint column and the butt joint groove are mutually clamped, the outer side face of the butt joint column is provided with a positioning groove, and the positioning block closely slides along the inner wall of the positioning groove.

[0007] Further, the limiting block is arranged inside the first cavity and closely slides along the inner wall of the first cavity.

[0008] Further, the limiting block is arranged inside the first cavity and closely slides along the inner wall of the first cavity.

[0009] Further, the connecting seat is internally provided with a second cavity, the connecting seat is internally provided with a third cavity, and the first cavity and the second cavity are connected in communication through the third cavity.

[0010] Further, the pressing block is arranged inside the second cavity and closely slides along the inner wall of the second cavity, the third cavity is internally provided with a connecting plate, and the pressing block and the limiting clamping block are fixedly connected through the connecting plate.

[0011] Further, the second cavity is internally provided with a reset spring, and the two ends of the reset spring are respectively in abutment with the inner wall of the second cavity and the inner side surface of the pressing block.

[0012] Further, the outer side surface of the connecting seat is provided with a threaded groove, the threaded seat is annular and is sleeved on the outer side of the connecting seat, and the threaded seat and the threaded groove are in meshing engagement.

[0013] Further, the cutting tooth body is externally provided with a chip removal groove, and the connecting seat is connected with an external driving device through a mounting shaft.

[0014] The utility model discloses a threaded chip removal type coal cutting tooth, when the user needs to disassemble and replace the cutting tooth body, first holds the threaded seat and rotates, makes it under the action of the threaded groove and moves upwards, and no longer shields the pressing block, then moves the pressing block inwards, the pressing block moves inwards along the inner wall of the second cavity while compressing the reset spring, and the limiting clamping block is jointly moved through the connecting plate, the limiting clamping block moves inwards along the inner wall of the first cavity while releasing the mutual clamping state with the limiting clamping groove, thereby facilitating the extraction of the butt joint column from the butt joint groove, and the cutting tooth body is removed. BRIEF DESCRIPTION OF DRAWINGS

[0015] Other features, objects and advantages of the utility model will become more apparent through reading the following detailed description of non - limiting embodiments with reference to the accompanying drawings:

[0016] Figure 1 It is the structural schematic diagram of a threaded chip removal type coal cutting tooth of the utility model;

[0017] Figure 2 It is the structural schematic diagram when a threaded chip removal type coal cutting tooth of the utility model is disassembled;

[0018] Figure 3 It is the sectional view structural schematic diagram of the cutting tooth body in a threaded chip removal type coal cutting tooth of the utility model;

[0019] Figure 4 It is the structural schematic diagram of the connecting seat in a threaded chip removal type coal cutting tooth of the utility model;

[0020] Figure 5 Figure is a cross-sectional structure diagram of the connecting seat of the thread chip removal type coal cutting pick of the utility model;

[0021] In the figure: 1 - cutting pick body, 11 - chip removal groove, 2 - butt joint groove, 3 - positioning block, 31 - limiting clamping groove, 4 - connecting seat, 5 - butt joint column, 51 - first cavity, 52 - positioning groove, 6 - limiting clamping block, 7 - pressing block, 71 - second cavity, 72 - return spring, 73 - connecting plate, 74 - third cavity, 8 - threaded seat, 81 - threaded groove, 9 - mounting shaft. DETAILED DESCRIPTION

[0022] In order to make the technical means, creation features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0023] Please refer to Figures 1-5 The utility model provides a technical scheme: a thread chip removal type coal cutting pick, including cutting pick body 1, butt joint groove 2, positioning block 3, connecting seat 4, butt joint column 5, limiting clamping block 6, pressing block 7, threaded seat 8 and mounting shaft 9, the butt joint groove 2 inside being provided with the positioning block 3, the cutting pick body 1 top being provided with the connecting seat 4, the connecting seat 4 inside moving being provided with the pressing block 7, the connecting seat 4 upper end face being provided with the mounting shaft 9, the connecting seat 4 outer side being provided with the threaded seat 8, the connecting seat 4 lower end face being provided with the butt joint column 5, the butt joint column 5 inside moving being provided with the limiting clamping block 6, this design has solved the problem that the original thread chip removal type coal cutting pick is inconvenient to install and disassemble.

[0024] As a first embodiment of the utility model: the butt joint column 5 and butt joint groove 2 are mutually clamped, the butt joint column 5 outside face is equipped with positioning slot 52, positioning block 3 is closely slid along the inner wall of positioning slot 52, the design of positioning block 3 and positioning slot 52 can position when installing butt joint column 5 and butt joint groove 2, the inside of positioning block 3 is equipped with limiting card slot 31, limiting card slot 31 and limiting block 6 are all provided with two groups, limiting block 6 and limiting card slot 31 are mutually clamped, the design of limiting block 6 and limiting card slot 31 can fix the position between butt joint column 5 and cutting tooth body 1, the inside of butt joint column 5 is equipped with first cavity 51, limiting block 6 is arranged in the inside of first cavity 51 and closely slides along the inner wall of first cavity 51, and first cavity 51 provides corresponding space for the movement of limiting block 6, the inside of connecting seat 4 is equipped with second cavity 71, the inside of connecting seat 4 is equipped with third cavity 74, and first cavity 51 is communicated with second cavity 71 through third cavity 74, press block 7 is arranged in the inside of second cavity 71 and closely slides along the inner wall of second cavity 71, and second cavity 71 provides corresponding space for the movement of press block 7, and connecting plate 73 is arranged in the third cavity 74, press block 7 and limiting block 6 are fixedly connected through connecting plate 73, the movement of press block 7 can drive limiting block 6 to move together through connecting plate 73, reset spring 72 is arranged in the inside of second cavity 71, and the both ends of reset spring 72 are respectively abutted with the inner wall of second cavity 71 and the inside surface of press block 7, and reset spring 72 can help press block 7 to reset, the outside surface of connecting seat 4 is equipped with threaded groove 81, threaded seat 8 is annular and is sleeved on the outside of connecting seat 4, threaded seat 8 and threaded groove 81 are mutually engaged, and the rotation of threaded seat 8 can drive it to move along the vertical direction through threaded groove 81.

[0025] As a second embodiment of the utility model: when the user needs to disassemble and replace cutting tooth body 1, first hold threaded seat 8 and rotate, make it move upwards under the action of threaded groove 81, and no longer shield press block 7, then move press block 7 inwards, press block 7 moves inwards along the inner wall of second cavity 71 while compressing reset spring 72, and limiting block 6 moves inwards along the inner wall of first cavity 51 while moving together through connecting plate 73, limiting block 6 removes the mutual clamping state with limiting card slot 31 while moving inwards along the inner wall of first cavity 51, so that butt joint column 5 can be pulled out from the inside of butt joint groove 2, cutting tooth body 1 is removed, and when installing, similarly, after pressing press block 7 inwards, butt joint column 5 and butt joint groove 2 are mutually clamped, and after releasing the hand, reset spring 72 drives press block 7 and limiting block 6 to reset, so that limiting block 6 and the limiting card slot 31 of the current position are mutually clamped, thereby fixing the position of connecting column, then rotating threaded seat 8, so that threaded seat 8 moves downwards and covers press block 7, preventing the cutting tooth body 1 from being separated due to accidental touch.

[0026] The basic principle and main features of the present application and the advantages of the present application are shown and described above. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

[0027] In addition, it should be understood that, although the present application is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A thread chip removal type coal pick, comprising a pick body, a butt joint groove, a positioning block, a connecting seat, a butt joint column, a limiting block, a pressing block, a thread seat and a mounting shaft, characterized in that: The upper end face of the cutting tooth body is provided with a butt joint groove, the butt joint groove is internally provided with a positioning block, the upper side of the cutting tooth body is provided with a connecting seat, the connecting seat is internally movably provided with a pressing block, the upper end face of the connecting seat is provided with a mounting shaft, the outer side face of the connecting seat is provided with a threaded seat, the lower end face of the connecting seat is provided with a butt joint column, and the butt joint column is internally movably provided with a limiting clamping block.

2. A thread chipper pick according to claim 1 wherein: The butt joint column and the butt joint groove are mutually clamped, the outer side face of the butt joint column is provided with a positioning groove, and the positioning block closely slides along the inner wall of the positioning groove.

3. A thread chipper pick according to claim 1, wherein: The inner side of the positioning block is provided with a limiting clamping groove, the limiting clamping groove and the limiting clamping block are provided with two groups, and the limiting clamping block and the limiting clamping groove are mutually clamped.

4. A thread chipper pick according to claim 1, wherein: The inner side of the butt joint column is provided with a first cavity, and the limiting clamping block is arranged in the first cavity and closely slides along the inner wall of the first cavity.

5. A thread chipper pick according to claim 4 wherein: The inner side of the connecting seat is provided with a second cavity and a third cavity, and the first cavity and the second cavity are connected through the third cavity.

6. A thread chipper pick according to claim 5 wherein: The pressing block is arranged in the second cavity and closely slides along the inner wall of the second cavity, the third cavity is internally provided with a connecting plate, and the pressing block and the limiting clamping block are fixedly connected through the connecting plate.

7. A thread chipper pick according to claim 5 wherein: The second cavity is internally provided with a reset spring, and the two ends of the reset spring are respectively abutted with the inner wall of the second cavity and the inner side face of the pressing block.

8. A thread chipper pick according to claim 1 wherein: The outer side face of the connecting seat is provided with a threaded groove, the threaded seat is annular and is sleeved on the outer side of the connecting seat, and the threaded seat and the threaded groove are mutually engaged.

9. A thread chipper pick according to claim 1 wherein: The outer side face of the cutting tooth body is provided with a chip removal groove, and the connecting seat is connected with an external driving device through the mounting shaft.

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