CN219837727U - Pick changing tool - Google Patents
Pick changing tool Download PDFInfo
- Publication number
- CN219837727U CN219837727U CN202321092229.3U CN202321092229U CN219837727U CN 219837727 U CN219837727 U CN 219837727U CN 202321092229 U CN202321092229 U CN 202321092229U CN 219837727 U CN219837727 U CN 219837727U
- Authority
- CN
- China
- Prior art keywords
- pick
- base
- fork
- mounting hole
- cutting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 abstract description 68
- 238000000034 method Methods 0.000 abstract description 20
- 238000005065 mining Methods 0.000 abstract description 9
- 239000003245 coal Substances 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
Landscapes
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The utility model relates to the technical field of coal mining, in particular to a cutting pick replacing tool which comprises a base, wherein the base is in a cuboid shape, and three adjacent surfaces of the base are respectively provided with a double-strand fork, a grab handle and a mounting hole; the bifilar fork comprises two wedge-shaped teeth which are distributed along the length direction of the base, the grab handle is perpendicular to the length direction of the base, and the mounting hole is a conical recess. According to the utility model, the double-strand fork is fixed at the joint of the pick head and the pick shaft part, and then pressure is applied to the pick through the double-strand fork, so that the pick is pulled out in a nondestructive manner, the safety of the pick disassembling process is ensured, and meanwhile, the pick disassembling efficiency is greatly improved; knocking the other surface of the base after aligning the mounting hole with the pick head, so that the pick is fixed on the pick base under the pressure of the mounting hole, and the safety of the pick mounting process is ensured; the raw materials for manufacturing the cutting pick replacement tool are easy to obtain and process, and the cost is low.
Description
Technical Field
The utility model relates to the technical field of coal mining, in particular to a cutting pick replacement tool.
Background
The cutting pick is a tool for cutting coal and rock by a mining machine, and structurally comprises a cutting pick head part and a cutting pick shaft part, wherein the maximum diameter of the cutting pick head part is larger than that of the cutting pick shaft part. When the cutter is used, the cutter shaft part is arranged on the cutter base, and after a mining machine is started, the cutter base rotates at a high speed to drive the cutter head to rotate, so that mining and cutting work of materials such as coal, rock and the like are completed.
In the production process of the coal mining face of the coal mine, due to the influence of geological structures, cutting picks arranged on a roller of the coal mining machine often generate serious abrasion, and frequent replacement is needed. In pick replacement, the pick mounted on the pick base is removed and a new pick is mounted on the pick base. In the prior art, the traditional tool and the traditional method are mainly used for detaching and installing the cutting pick, wherein the detaching process is to prop the tip of a chisel against the joint of the head part of the cutting pick and the shaft part of the cutting pick, hammer the tail part of the hair clasp with a large hammer, and pull out the cutting pick under the pushing of the chisel; the mounting procedure is that after a new cutting pick is aligned with the cutting pick base, a large hammer is used for knocking the tip of the cutting pick along the length direction of the cutting pick, so that the shaft part of the cutting pick is fixed on the cutting pick base.
At present, in the process of replacing the cutting pick by using a traditional tool and a traditional method, the method for disassembling the cutting pick by combining the chisel with the sledge is required to replace the chisel position for a plurality of times and repeatedly hammer, the time for disassembling the cutting pick is long, the disassembling efficiency is low, 2 persons are required to cooperatively operate the chisel and the sledge, the misoperation is easy to occur in the disassembling process, and under the hammering, the chisel can cause metal particles of the cutting pick to splash or even break the cutting pick, so that on-site operators are easy to be injured; the method of directly knocking the cutting pick tip by the sledge hammer can also cause the cutting pick to be damaged or broken, and has great potential safety hazard.
Disclosure of Invention
Aiming at the technical problems of low efficiency and potential safety hazards of a method for installing and replacing a cutting pick in the prior art, the utility model provides a cutting pick replacing tool, which is characterized in that a bifilar fork is fixed at the joint of the head part of the cutting pick and the shaft part of the cutting pick, and pressure is applied to the cutting pick through the bifilar fork, so that the cutting pick is pulled out in a lossless manner, the safety of the cutting pick disassembling process is ensured, and meanwhile, the cutting pick disassembling efficiency is greatly improved; knocking the other surface of the base after aligning the mounting hole with the pick head, so that the pick is fixed on the pick base under the pressure of the mounting hole, and the safety of the pick mounting process is ensured; the raw materials for manufacturing the cutting pick replacement tool are easy to obtain and process, and the cost is low.
The technical scheme of the utility model is as follows:
a pick changing tool comprises a base, wherein the base is in a cuboid shape, and three adjacent surfaces of the base are respectively provided with a bifilar fork, a grab handle and a mounting hole; the bifilar fork comprises two wedge-shaped teeth which are distributed along the length direction of the base, the grab handle is perpendicular to the length direction of the base, and the mounting hole is a conical recess.
Further, two teeth of the double-strand fork are wedge-shaped, and the top of each tooth is provided with a tooth edge parallel to the length direction of the base. When the distance between the pick head and the pick base is smaller than that between the two-strand fork base, the cutting edge of the two-strand fork can be downwards inserted into a gap between the pick head and the pick base, and tools such as a large hammer are used for downwards knocking the base, so that the pick is ejected out of the base for a distance, and the two-strand fork is clamped at the joint of the pick head and the pick shaft part.
Further, the gap between the two teeth of the double-strand fork is U-shaped, the tooth distance of the two teeth is larger than the diameter of the shaft part of the cutting pick and smaller than the maximum diameter of the head part of the cutting pick, and the double-strand fork can be clamped at the joint of the head part of the cutting pick and the shaft part of the cutting pick.
In another technical scheme of the utility model, the gap between two teeth of the double-strand fork is V-shaped and can be clamped on picks with different diameter specifications.
In another technical scheme of the utility model, the gap between two teeth of the bifilar fork is in a step shape, the width of the gap between two tooth roots is smaller than the width of the gap between two tooth tips, the contact area between the bifilar fork and the cutting pick head can be increased while the cutting pick requirements of different specifications are met, and force application is easier when the cutting pick is disassembled.
Furthermore, the materials of the base, the grab handle and the bifilar fork are selected from iron or hard alloy, hard alloy materials such as iron and stainless steel are easy to obtain and process, and the manufactured pick replacing tool is not easy to damage when the pick is detached from the firmly-installed pick.
Furthermore, the base, the grab handle and the double-stranded fork are connected through welding, and the base, the grab handle and the double-stranded fork can be combined into a whole through welding, so that the combination strength is high, the operation is simple and convenient, and the on-site processing is easy.
The utility model has the beneficial effects that:
1. according to the utility model, the base, the bifilar fork and the grab handle are combined to form the pick replacing tool, the bifilar fork is fixed at the joint of the pick head and the pick shaft part when the pick is disassembled, and then pressure is applied to the pick by the bifilar fork in a mode of lifting the grab handle and hammering the base, so that the pick is pulled out in a nondestructive way, the damage to workers in the pick disassembling process is avoided, and the safety of the disassembling process is improved; the cutting pick replacing tool can be operated by only one person, so that manpower and material resources for disassembling the cutting pick are saved, and the disassembling efficiency of the cutting pick is greatly improved.
2. According to the utility model, the mounting hole is formed in the base, the shaft part of the cutting pick is aligned to the cutting pick base when the cutting pick is mounted, the mounting hole is aligned to the tip of the cutting pick head, and tools such as a large hammer are used for knocking the opposite surface of the mounting hole on the base, so that the cutting pick is fixed on the cutting pick base under the pressure of the mounting hole, the tip of the cutting pick head is not damaged in the mounting process, the risk of damage of the cutting pick is reduced, and the safety of the cutting pick mounting process is improved.
3. The pick replacing tool has the advantages of simple structure, easy processing and low cost, and can be widely applied to the disassembling work of picks on mining machinery such as coal mining machines.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic view of the pick changing tool in embodiment 1.
Fig. 2 is a schematic view of the bifilar fork shape in example 1.
Fig. 3 is a schematic view of the bifilar fork shape in example 2.
Fig. 4 is a schematic view of the bifilar fork shape in example 3.
In the figure, a 1-bifilar fork, a 2-base, a 3-grab handle and a 4-mounting hole.
Detailed Description
In order to make the technical solution of the present utility model better understood by those skilled in the art, the technical solution of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.
Example 1
The cutting pick replacing tool comprises a base 2, wherein the base 2 is an iron cuboid, a double-strand fork 1, a grab handle 3 and a mounting hole 4 are respectively arranged on three adjacent surfaces of the base 2, and the base 2, the grab handle 3 and the double-strand fork 1 are connected through welding; the double-strand fork 1 comprises two iron wedge-shaped teeth which are arranged along the length direction of the base, the top of each tooth is a tooth edge parallel to the length direction of the base, a gap between the two teeth is U-shaped, and the tooth distance of the two teeth is larger than the diameter of the shaft part of the cutting pick and smaller than the maximum diameter of the head part of the cutting pick; the grab handle 3 is made of stainless steel, the grab handle 3 is perpendicular to the length direction of the base 2, and the mounting hole 4 is a conical recess.
The pick replacement tool of embodiment 1 is used to replace a pick mounted on a shearer drum, the steps comprising:
(1) The tip end of the double-strand fork 1 is downwards inserted between the pick head and the pick base, the pick shaft part is positioned in a gap between two teeth of the double-strand fork 1, and if the distance between the pick head and the pick base is smaller than that between the double-strand fork base, a large hammer is used for downwards knocking the base 2, so that the double-strand fork is clamped at the joint of the pick head and the pick shaft part;
(2) Pulling the tail end of the grab handle upwards, forming a labor-saving lever by the cutting pick replacing tool, and applying an outward pushing force to the cutting pick head by the double-strand fork so as to pull out the cutting pick;
(3) If the combination of the cutting pick and the cutting pick support is too tight, the cutting pick cannot be pulled out only by pulling the grab handle, the base 2 can be hammered in the direction of cutting pick pulling out by using tools such as a sledge hammer, so that the cutting pick can be pulled out.
(4) After the pick is pulled out, the shaft part of the new pick is aligned with the pick base, the mounting hole 4 is aligned with the tip of the new pick head, and tools such as a sledge hammer and the like are used for knocking the opposite surface of the mounting hole 4 on the base 2, so that the new pick is fixed on the pick base under the pressure of the mounting hole 4.
Example 2
The structure of the base and the handle and the connection relationship of the bifilar fork, the base and the handle are the same as those of the embodiment 1, and the difference is that the gap between the two teeth of the bifilar fork is in a V shape as shown in figure 3.
Example 3
The structure of the base and the handle and the connection relationship of the bifilar fork, the base and the handle are the same as those of the embodiment 1, and the difference is that the gap between two teeth of the bifilar fork is in a step shape and the width of the gap between the root parts of the two teeth is smaller than the width of the gap between the tips of the two teeth as shown in fig. 4.
Although the present utility model has been described in detail by way of preferred embodiments with reference to the accompanying drawings, the present utility model is not limited thereto. Various equivalent modifications and substitutions may be made in the embodiments of the present utility model by those skilled in the art without departing from the spirit and scope of the present utility model, and it is intended that all such modifications and substitutions be within the scope of the present utility model/be within the scope of the present utility model as defined by the appended claims.
Claims (7)
1. The pick replacing tool is characterized by comprising a base, wherein the base is in a cuboid shape, and three adjacent surfaces of the base are respectively provided with a bifilar fork, a grab handle and a mounting hole; the bifilar fork comprises two wedge-shaped teeth which are distributed along the length direction of the base, the grab handle is perpendicular to the length direction of the base, and the mounting hole is a conical recess.
2. A pick changing tool according to claim 1, wherein both teeth of the bifilar fork are wedge-shaped, and the top of the teeth is a tooth edge parallel to the length of the base.
3. A pick changing tool according to claim 1, wherein the gap between the two teeth of the bifilar fork is "U" shaped.
4. A pick changing tool according to claim 1, wherein the gap between the two teeth of the bifilar fork is "V" shaped.
5. A pick changing tool according to claim 1, wherein the gap between the two teeth of the bifilar fork is stepped, the width of the gap between the root portions being smaller than the width of the gap between the tips of the two teeth.
6. The pick changing tool of claim 1, wherein the base, grip and bifilar fork are selected from the group consisting of iron and cemented carbide.
7. The pick changing tool of claim 1, wherein the base and the grip, and the base and the bifilar fork are all connected by welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321092229.3U CN219837727U (en) | 2023-05-05 | 2023-05-05 | Pick changing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321092229.3U CN219837727U (en) | 2023-05-05 | 2023-05-05 | Pick changing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219837727U true CN219837727U (en) | 2023-10-17 |
Family
ID=88299495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321092229.3U Active CN219837727U (en) | 2023-05-05 | 2023-05-05 | Pick changing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219837727U (en) |
-
2023
- 2023-05-05 CN CN202321092229.3U patent/CN219837727U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |