CN220059542U

CN220059542U - Cutting pick of coal cutter

Info

Publication number: CN220059542U
Application number: CN202321472579.2U
Authority: CN
Inventors: 冯移超; 周鹏
Original assignee: Ruian Junhan Machinery Manufacturing Co ltd
Current assignee: Ruian Junhan Machinery Manufacturing Co ltd
Priority date: 2023-06-09
Filing date: 2023-06-09
Publication date: 2023-11-21
Anticipated expiration: 2033-06-09

Abstract

The utility model discloses a cutting pick of a coal mining machine, which comprises a cutter body, a cutter head, a butt joint hole formed in the cutter body and a disassembly groove, wherein the cutter body is provided with a mounting groove for mounting the cutter head and at least one disassembly through hole communicated with the mounting groove, a limiting rod is detachably inserted in each disassembly through hole in a damping mode, a limiting structure for limiting the cutter head to be separated from the mounting groove is formed between each limiting rod and the cutter head, a driving hole communicated with the bottom of the mounting groove and the outside is formed in the cutter body, a driving piece is arranged in the driving hole, an ejection assembly is arranged between the driving piece and the cutter head, and the driving piece drives the ejection assembly to enable the cutter head to be separated from the mounting groove. The utility model has the following advantages and effects: the utility model can realize convenient replacement of the cutter head, is convenient for field operation, and reduces the subsequent maintenance time, thereby having better universality and practical function.

Description

Cutting pick of coal cutter

Technical Field

The utility model relates to the technical field of underground coal mine excavating equipment, in particular to a cutting pick of a coal mining machine.

Background

Picks are a tool used by coal cutters and mining machinery to cut rock formations. There are roughly the following types: one is a knife-shaped cutting pick, and the other is a pick-shaped cutting pick, and besides the knife-shaped cutting pick and the pick-shaped cutting pick, the pick-shaped cutting pick also comprises a tunneling tooth, a rotary digging tooth, a milling tooth, an excavator bucket tooth and the like of the tunneling machine. The types and types of the cutting picks are different according to different functions of the cutting picks, but the cutter type cutting pick and the pick type cutting pick are widely used. The cutter type cutting pick is widely applied to a cutter type spiral roller of a coal mine underground coal cutter, and can effectively improve the lump coal rate, the coal cutting speed is relatively large, the cutting depth is relatively large and the dust settling capacity is relatively strong.

The cutting pick comprises a cutter body and a cutter head, and the cutter head is a main abrasion part because the cutter head is a position mainly used for cutting rock strata. The existing mounting mode of the cutter head is mainly divided into two modes of welding and clamping. The welding is fixed and connected, and if the tool bit needs to be replaced, flame cutting and desoldering operations need to be carried out, and cutting equipment is needed in the mode, so that the replacement operations are extremely difficult to carry the cutting equipment in a complex field environment. The clamping and fixing mode often causes the phenomenon that the cutter head is blocked in the cutter body due to the severe working condition of the cutting pick, and the replacement operation is very inconvenient. Therefore, the present utility model has been made in view of the above problems.

Disclosure of Invention

The utility model aims to provide a cutting pick of a coal cutter, which can realize convenient replacement of a cutter head and is convenient for field operation so as to reduce subsequent maintenance time, thereby having better universality and practical function.

The technical aim of the utility model is realized by the following technical scheme: the utility model provides a coal-winning machine pick, includes cutter body, tool bit and forms in the butt joint hole of cutter body and dismantles the slot, be equipped with on the cutter body and supply the mounting groove of tool bit installation and offered at least one with the communicating dismantlement through-hole of mounting groove, every all damping dismantlement is dismantled and is pegged graft in the through-hole has the gag lever post and all is formed with the limit structure that the restriction tool bit breaks away from the mounting groove between every gag lever post and the tool bit, be equipped with the drive hole of intercommunication mounting groove bottom and external world on the cutter body, be equipped with the driving piece in the drive hole, be equipped with ejecting subassembly between driving piece and the tool bit, the ejecting subassembly of driving piece drive makes the tool bit leave the mounting groove.

By adopting the technical scheme, when the cutter head is to be replaced, the limiting rod is knocked out from the dismounting through hole through the ejector rod, and the limiting rod is lost, so that the limiting structure does not limit the cutter head; then the driving piece drives the ejection assembly to eject the cutter head out of the mounting groove, so that the cutter head can be conveniently replaced, and the mode does not involve the application of a large tool and can be operated on site. Thereby reducing the subsequent maintenance time and having better universality and practical functions.

Further provided is that: the axial direction of the disassembly through hole is perpendicular to the opening direction of the mounting groove, the limiting structure comprises a limiting through groove formed on the side wall of the cutter head, and the limiting rod penetrates through the limiting through groove to form clamping.

Through adopting above-mentioned technical scheme, the gag lever post pierces into and dismantles the through-hole and gets into spacing logical groove so that constitute spacingly to the tool bit that is located the mounting groove, realized convenient dismantlement of tool bit when avoiding the tool bit to drop.

Further provided is that: the driving hole comprises a first connecting section communicated with the mounting groove and coaxially arranged with the mounting groove, and a second connecting section connected with the first connecting section and communicated with the dismounting groove, wherein an included angle is formed between the first connecting section and the second connecting section.

Through adopting above-mentioned technical scheme, the setting mode that first linkage segment and second linkage segment formed certain contained angle makes the drive hole that exists can not set up in the main part position of cutter body to this guarantees the original structural strength of cutter body, thereby guarantees its life.

Further provided is that: the ejection assembly comprises a first ejector rod slidably mounted in the first connecting section, a second ejector rod slidably mounted in the second connecting section and a linkage assembly formed between the first ejector rod and the second ejector rod.

Through adopting above-mentioned technical scheme, the linkage subassembly constitutes the linkage between first ejector pin and the second ejector pin to this guarantees that the driving piece can drive the tool bit through first ejector pin and second ejector pin and do ejecting motion.

Further provided is that: the linkage assembly comprises a first inclined plane formed at one end of the first ejector rod facing the second ejector rod and a second inclined plane formed at one end of the second ejector rod facing the first ejector rod.

By adopting the technical scheme, the arrangement of the first inclined plane and the second inclined plane changes the acting direction of the force, so that the first ejector rod and the second ejector rod form linkage.

Further provided is that: the driving piece is an inner hexagonal headless screw in threaded connection with the second connecting section, and one end of the second connecting section communicated with the disassembly groove is in threaded connection with a plug.

By adopting the technical scheme, the second ejector rod is driven to move towards the first ejector rod by rotating the hexagon socket screw, so that the driving purpose is achieved, and the mode is more convenient for field operation without large tools.

Further provided is that: limiting sliding blocks are fixedly arranged on the peripheral walls of the first ejector rod and the second ejector rod, and penetrate through the side walls of the first connecting section and the second connecting section respectively and move along with the first ejector rod and the second ejector rod.

Through adopting above-mentioned technical scheme, the setting of spacing slider guarantees first ejector pin and second ejector pin along its axis reciprocating motion, avoids these two to cause structural interference because of circumferential direction rotates.

In summary, the utility model has the following beneficial effects: the utility model can realize convenient replacement of the cutter head, is convenient for field operation, and reduces the subsequent maintenance time, thereby having better universality and practical function.

Drawings

FIG. 1 is a schematic diagram of an embodiment;

FIG. 2 is a cross-sectional view of an embodiment;

fig. 3 is a partial cross-sectional view of an embodiment.

In the figure: 1. a cutter body; 2. a cutter head; 3. a butt joint hole; 4. disassembling the groove; 5. a mounting groove; 6. disassembling the through hole; 7. a limit rod; 8. a drive hole; 81. a first connection section; 82. a second connection section; 9. a driving member; 10. an ejection assembly; 101. a first ejector rod; 102. a second ejector rod; 11. limiting through grooves; 12. a first inclined surface; 13. a second inclined surface; 14. a plug; 15. and a limit sliding block.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 to 3, a shearer cutting pick includes a cutter body 1, a cutter head 2, and a butt hole 3 and a dismounting groove 4 formed in the cutter body 1. The cutter body 1 is provided with a mounting groove 5 for mounting the cutter head 2 and at least one dismounting through hole 6 communicated with the mounting groove 5, the number of the dismounting through holes 6 is preferably two, each dismounting through hole 6 is detachably inserted with a limiting rod 7, and a limiting structure for limiting the cutter head 2 to be separated from the mounting groove 5 is formed between each limiting rod 7 and the cutter head 2, and damping fit is realized between the limiting rods 7 and the dismounting through holes 6. The cutter body 1 is provided with a driving hole 8 communicated with the bottom of the mounting groove 5 and the outside, a driving piece 9 is arranged in the driving hole 8, an ejection assembly 10 is arranged between the driving piece 9 and the cutter head 2, and the driving piece 9 drives the ejection assembly 10 to enable the cutter head 2 to leave the mounting groove 5.

The axial direction of the disassembly through hole 6 is vertical to the opening direction of the mounting groove 5, the limiting structure comprises a limiting through groove 11 formed on the side wall of the cutter head 2, and the limiting rod 7 penetrates through the limiting through groove 11 to form clamping. The driving hole 8 comprises a first connecting section 81 communicated with the mounting groove 5 and coaxially arranged with the mounting groove, and a second connecting section 82 connected with the first connecting section 81 and communicated with the dismounting groove 4, wherein an included angle is formed between the first connecting section 81 and the second connecting section 82. The ejector assembly 10 includes a first ejector rod 101 slidably mounted in the first connection section 81, a second ejector rod 102 slidably mounted in the second connection section 82, and a linkage assembly formed between the first ejector rod 101 and the second ejector rod 102.

The linkage assembly includes a first inclined surface 12 formed at an end of the first jack 101 facing the second jack 102, and a second inclined surface 13 formed at an end of the second jack 102 facing the first jack 101. The driving piece 9 is an inner hexagonal headless screw in threaded connection with the second connecting section 82, one end of the second connecting section 82, which is communicated with the disassembly groove 4, is in threaded connection with the plug 14, and the plug 14 is made of high-temperature-resistant rubber. The outer peripheral walls of the first ejector rod 101 and the second ejector rod 102 are uniformly provided with limit sliding blocks 15, and the two limit sliding blocks 15 respectively penetrate through the side walls of the first connecting section 81 and the second connecting section 82 and slide along with the first ejector rod 101 and the second ejector rod 102.

The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and modifications to the present embodiment, which may not creatively contribute to the present utility model as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present utility model.

Claims

1. The utility model provides a coal-winning machine pick, includes cutter body (1), tool bit (2) and forms in butt joint hole (3) and dismantlement slot (4) of cutter body (1), its characterized in that: the utility model discloses a cutter body, including cutter body (1), cutter head (2) and cutter head (2) are equipped with mounting groove (5) that supply the cutter head (2) to install and set up at least one with mounting groove (5) communicating dismantlement through-hole (6), every all the damping is dismantled in dismantlement through-hole (6) and is pegged graft and have gag lever post (7) and all be formed with the limit structure that restriction cutter head (2) break away from mounting groove (5) between every gag lever post (7) and cutter head (2), be equipped with on cutter body (1) and communicate mounting groove (5) bottom and external drive hole (8), be equipped with driving piece (9) in drive hole (8), be equipped with ejecting subassembly (10) between driving piece (9) and cutter head (2), driving piece (9) drive ejecting subassembly (10) make cutter head (2) leave mounting groove (5).

2. The shearer cutting pick of claim 1, wherein: the axial direction of the disassembly through hole (6) is perpendicular to the opening direction of the mounting groove (5), the limiting structure comprises a limiting through groove (11) formed on the side wall of the cutter head (2), and the limiting rod (7) penetrates through the limiting through groove (11) to form clamping.

3. The shearer cutting pick of claim 1, wherein: the driving hole (8) comprises a first connecting section (81) which is communicated with the mounting groove (5) and is coaxially arranged with the mounting groove, and a second connecting section (82) which is connected with the first connecting section (81) and is communicated with the dismounting groove (4), wherein an included angle is formed between the first connecting section (81) and the second connecting section (82).

4. A shearer pick according to claim 3, wherein: the ejection assembly (10) comprises a first ejector rod (101) which is slidably mounted in the first connecting section (81), a second ejector rod (102) which is slidably mounted in the second connecting section (82), and a linkage assembly which is formed between the first ejector rod (101) and the second ejector rod (102).

5. The shearer cutting pick of claim 4, wherein: the linkage assembly comprises a first inclined surface (12) formed at one end of the first ejector rod (101) facing the second ejector rod (102) and a second inclined surface (13) formed at one end of the second ejector rod (102) facing the first ejector rod (101).

6. The shearer cutting pick of claim 5, wherein: the driving piece (9) is an inner hexagonal headless screw in threaded connection with the second connecting section (82), and one end of the second connecting section (82) communicated with the disassembly groove (4) is in threaded connection with the plug (14).

7. The shearer cutting pick of claim 4, wherein: limiting sliding blocks (15) are fixedly arranged on the peripheral walls of the first ejector rod (101) and the second ejector rod (102), and the two limiting sliding blocks (15) penetrate into the side walls of the first connecting section (81) and the second connecting section (82) respectively and move along with the first ejector rod (101) and the second ejector rod (102).