CN220687806U - Novel bolt anti-loosening device for cutting head of heading machine - Google Patents
Novel bolt anti-loosening device for cutting head of heading machine Download PDFInfo
- Publication number
- CN220687806U CN220687806U CN202322006752.6U CN202322006752U CN220687806U CN 220687806 U CN220687806 U CN 220687806U CN 202322006752 U CN202322006752 U CN 202322006752U CN 220687806 U CN220687806 U CN 220687806U
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- Prior art keywords
- cutting head
- bolt
- wear
- loosening
- heading machine
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- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 230000002265 prevention Effects 0.000 claims 2
- 238000005299 abrasion Methods 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
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Abstract
The utility model relates to a novel bolt anti-loosening device for a cutting head of a heading machine, which is used for the cutting head of the heading machine, prevents the fixed bolt of the cutting head from loosening and reduces the abrasion of the bolt. The anti-loose device consists of a positioning plate, a wear-resisting plate and a sleeve, and is sleeved on the connecting bolts of the two cutting heads and fixed on the cutting heads when in use.
Description
Technical Field
The utility model relates to a novel bolt anti-loosening device for a cutting head of a heading machine.
Background
At present, the existing anti-loosening mode of a cutting head connecting bolt of a heading machine comprises the following steps: the cutting head of the heading machine is connected with the main shaft of the cutting head through two high-strength M30 bolts, two holes with the diameter of 4mm are formed in the bolt heads of the connecting bolts, and two iron wires with the diameter of 3mm are used for preventing looseness of the two bolts in an 8 shape. In the working process of the cutting head, the bolts and the iron wires are in direct contact with coal and rock, so that the abrasion is serious, and the anti-loosening is easy to fail.
Disclosure of Invention
In view of the above, the present utility model aims to: the novel bolt locking device for the cutting head of the heading machine is used for the cutting head of the heading machine, prevents the fixed bolt of the cutting head from loosening, and reduces the abrasion of the bolt.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the utility model provides a development machine cutting head is with novel bolt locking device, its structure includes: the positioning plate, the wear-resisting plate and the sleeve; wherein, there are two locating holes on the locating plate, two sleeves are imbedded in two locating holes separately, weld the three together through two wear-resisting plates; the sleeve appearance is cylindrical structure, and inside has the zigzag blind hole to overlap connecting bolt's bolt head and prevent that the bolt from becoming flexible, and the antifriction plate adopts wear-resisting steel sheet to make.
The beneficial effects of the utility model are as follows: the cutting head connecting bolt is prevented from loosening, the wear resistance and the anti-loosening effect of the anti-loosening device are improved, and the failure and replacement frequency of the cutting head connecting bolt are greatly reduced.
Drawings
The drawing shows the working schematic diagram of the bolt wire anti-loosening mode and the novel bolt anti-loosening device.
FIG. 1 is a schematic diagram of the operation of a bolt wire anti-loosening mode;
FIG. 2 is a sectional view of a bolt anti-loosening device;
FIG. 3 is a block diagram of a bolt lock device;
FIG. 4 is a block diagram;
FIG. 5 is a sleeve block diagram;
FIG. 6 is a schematic diagram of the operation of the bolt anti-loosening device;
in the figure: 1. a connecting bolt; 2. an iron wire; 3. a bolt locking device; 4. a positioning plate; 41. positioning holes; 5. a wear plate; 6. a sleeve.
Detailed Description
The technical method adopted by the utility model is further described below with reference to the accompanying drawings.
Fig. 1 shows a conventional locking mode of bolt wires, wherein a cutting head is connected to a cutting head shaft through two connecting bolts 1, and the two connecting bolts 1 are locked by punching an 8-shaped wire through two wires 2. In the anti-loosening mode, the connecting bolt 1 and the iron wire 2 are in direct contact with coal and rock, so that the anti-loosening device is not wear-resistant and is easy to lose efficacy.
As shown in fig. 2 to 5, a novel bolt locking device for a cutting head of a heading machine is provided, and the structure of the novel bolt locking device comprises: the positioning plate 4, the wear-resisting plate 5 and the sleeve 6; wherein, the positioning plate 4 is provided with two positioning holes 41, the two sleeves 6 are respectively embedded into the two positioning holes 41, and the three are welded together through the two wear-resisting plates 5; the sleeve 6 is of a cylindrical structure, a zigzag blind hole is formed in the sleeve, the bolt head of the connecting bolt 1 can be sleeved to prevent the bolt from loosening, and the wear-resistant plate 5 is made of wear-resistant steel plates.
As shown in fig. 6, in the use process, the cutting head is connected to the cutting head shaft through two connecting bolts 1, and then a bolt loosening device 3 is sleeved on the two connecting bolts 1, and the bolt loosening device 3 is fixed on the cutting head through a fixing bolt. The bolt looseness preventing device 3 is sleeved on the connecting bolt 1 and is of an inner sawtooth structure, so that the connecting bolt 1 can be prevented from loosening.
In summary, according to the novel bolt anti-loosening device for the cutting head of the heading machine, two M30 connecting bolts are completely sleeved and fixed on the cutting head through the bolts, so that an anti-loosening effect is achieved, and meanwhile, the parts in direct contact with coal and rock are made of wear-resistant steel plates, so that the wear resistance and the anti-loosening effect of the anti-loosening device are greatly improved.
Claims (2)
1. The utility model provides a development machine cutting head is with novel bolt locking device which characterized by: consists of a positioning plate, a wear-resisting plate and a sleeve; two locating holes are formed in the locating plate, the two sleeves are respectively embedded into the two locating holes, and the two locating holes, the two sleeves and the two wear-resisting plates are welded together.
2. The novel bolt looseness prevention device for a heading machine cutting head of claim 1, wherein the novel bolt looseness prevention device is characterized in that: the locating plate is provided with two locating holes, the sleeve is in a cylindrical shape, a saw-tooth structure is arranged in the sleeve, and the wear-resistant plate is made of wear-resistant steel plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322006752.6U CN220687806U (en) | 2023-07-28 | 2023-07-28 | Novel bolt anti-loosening device for cutting head of heading machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322006752.6U CN220687806U (en) | 2023-07-28 | 2023-07-28 | Novel bolt anti-loosening device for cutting head of heading machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220687806U true CN220687806U (en) | 2024-03-29 |
Family
ID=90411157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322006752.6U Active CN220687806U (en) | 2023-07-28 | 2023-07-28 | Novel bolt anti-loosening device for cutting head of heading machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220687806U (en) |
-
2023
- 2023-07-28 CN CN202322006752.6U patent/CN220687806U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |