CN214424890U - Check bolt structure of mining machinery - Google Patents
Check bolt structure of mining machinery Download PDFInfo
- Publication number
- CN214424890U CN214424890U CN202120354611.1U CN202120354611U CN214424890U CN 214424890 U CN214424890 U CN 214424890U CN 202120354611 U CN202120354611 U CN 202120354611U CN 214424890 U CN214424890 U CN 214424890U
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- CN
- China
- Prior art keywords
- bolt
- threaded hole
- positioning block
- screw rod
- external thread
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- 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.)
- Expired - Fee Related
Links
- 238000005065 mining Methods 0.000 title claims abstract description 37
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- 238000005553 drilling Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
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Abstract
The utility model discloses a check bolt structure of mining machinery, which belongs to the technical field of mining machinery fixing devices and comprises a first bolt, a second bolt and a nut, wherein the first bolt comprises a first bolt head and a first screw rod, and the first screw rod is provided with a first external thread and a first threaded hole; the nut is provided with a second threaded hole, the internal thread of the second threaded hole is matched with the first external thread, and a positioning block is arranged in the second threaded hole; the second bolt comprises a second bolt head and a second screw rod, a second external thread is arranged on the second screw rod and matched with the internal thread of the first threaded hole, and a positioning groove is arranged on the second screw rod; the first external thread and the second external thread are opposite in rotation direction; the utility model discloses a first bolt and nut are fixed mining machinery and spare part with it, and the locating piece through in second bolt and the nut can prevent to become flexible under the strong earthquake environment, has guaranteed mining machinery equipment's normal use and operation, has eliminated the potential safety hazard.
Description
Technical Field
The utility model relates to a mining machinery fixing device technical field, concretely relates to mining machinery's check bolt structure.
Background
The mining machine is a machine directly used for mineral mining, enrichment and other operations, and comprises a mining machine and a mineral separation machine, the working principle and structure of the prospecting machine are mostly the same as or similar to those of the mining machine used for mining similar minerals, in a broad sense, the prospecting machine also belongs to the mining machine, and in addition, a large number of cranes, conveyors, ventilators, drainage machines and the like are also applied in the mining operation. Mining machines can be classified into crushing equipment, mining machines, excavating machines, drilling machines, tunneling machines, coal mining machines, oil drilling, mineral processing machines, drying machines, and the like.
The mining machinery and the fixing of parts thereof usually use a bolt structure, and due to the particularity of the working environment, the mining machinery usually operates in a strong earthquake environment, the bolt is loosened after the mining machinery operates for a long time, the use and the operation of the mining machinery equipment are possibly influenced, and great potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the prior art, the utility model provides a pair of mining machinery's check bolt structure can be fixed mining machinery with and spare part through first bolt and nut, and is further, can effectually prevent through the locating piece in second bolt and the nut that first bolt and nut from taking place not hard up under the macroseism environment, has guaranteed mining machinery equipment's normal use and operation, the effectual potential safety hazard of having eliminated.
In order to realize the purpose, the utility model discloses a technical scheme as follows:
a check bolt structure of mining machinery comprises a first bolt, a second bolt and a nut, wherein the first bolt comprises a first bolt head and a first screw, the first screw is provided with a first external thread, and one end, far away from the first bolt head, of the first screw is provided with a first threaded hole; the nut is provided with a second threaded hole, the internal thread of the second threaded hole is matched with the first external thread, a positioning block is arranged in the second threaded hole, part of the positioning block extends out of the inner surface of the second threaded hole, and the positioning block can move along the radial direction of the second threaded hole; the second bolt comprises a second bolt head and a second screw rod, a second external thread is arranged on the second screw rod and matched with the internal thread of the first threaded hole, and a positioning groove capable of accommodating part of the positioning block is arranged on the peripheral surface of the second screw rod; the first external thread and the second external thread are opposite in rotation direction.
As a preferable technical solution, an accommodating cavity for accommodating a part of the positioning block is provided on the inner threaded surface of the second threaded hole, the positioning block is movably connected with the inner wall of the accommodating cavity, an elastic member is provided between the positioning block and the inner wall of the accommodating cavity, and the elastic member applies an elastic force to the positioning block to move in the axial direction of the second threaded hole; the accommodating cavity is provided with a limiting block, and the position of the positioning block corresponding to the limiting block is provided with a limiting groove.
As a preferable aspect, a side surface of the positioning block near the axis of the second threaded hole is inclined toward the axis of the second threaded hole in a direction near the first bolt.
Preferably, an end of the second screw rod away from the second bolt head is tapered.
As a preferable technical solution, two positioning blocks are provided, and the two positioning blocks are symmetrically provided based on the axis of the second threaded hole.
As a preferred embodiment, the elastic member is a spring.
The utility model has the advantages of that:
the utility model discloses a first bolt and nut can be fixed mining machinery and spare part with it, and is further, can effectually prevent through the locating piece in second bolt and the nut that first bolt and nut from taking place to become flexible under the strong environment that shakes, have guaranteed mining machinery's normal use and operation, the effectual potential safety hazard of having eliminated.
Drawings
Fig. 1 is the utility model relates to a mining machinery's check bolt structure's overall structure sketch map.
In the figure: 1-a first bolt, 11-a first bolt head, 12-a first screw rod, 13-a first threaded hole, 2-a second bolt, 21-a second bolt head, 22-a second screw rod, 3-a nut, 31-a second threaded hole, 4-a positioning block and 5-an elastic element.
Detailed Description
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1, the anti-loosening bolt structure for mining machinery according to an embodiment of the present invention includes a first bolt 1, a second bolt 2, and a nut 3, where the first bolt 1 includes a first bolt head 11 and a first screw 12, the first screw 12 has a first external thread, and a first threaded hole 13 is formed in an end of the first screw 12 away from the first bolt head 11; the nut 3 is provided with a second threaded hole 31, the internal thread of the second threaded hole 31 is matched with the first external thread, and the first bolt 1 can be in threaded connection with the nut 3 through the first external thread on the first screw 12, so that the mining machinery or parts thereof between the first bolt head 11 and the nut 3 can be fixed; a positioning block 4 is arranged in the second threaded hole 31, part of the positioning block 4 extends out of the inner surface of the second threaded hole 31, and the positioning block 4 can move along the radial direction of the second threaded hole 31; the second bolt 2 comprises a second bolt head 21 and a second screw rod 22, the second screw rod 22 is provided with a second external thread, the second external thread is matched with the internal thread of the first threaded hole 13, and the second bolt 2 can be in threaded connection with the first threaded hole 13 through the second external thread on the second screw rod 22; the circumferential surface of the second screw 22 is provided with a positioning groove capable of accommodating a part of the positioning block 4, when the part of the positioning block 4 is embedded into the positioning groove, the relative position between the second bolt 2 and the nut 3 can be positioned, and the second bolt 2 is prevented from rotating relative to the nut 3; first external screw thread and second external screw thread's direction of rotation is opposite, utilizes threaded connection's first bolt 1 and second bolt 2 and through second bolt 2 and the nut 3 of 4 location of locating pieces, can effectually prevent that first bolt 1, second bolt 2 and nut 3 from taking place relative rotation between the two wantonly, thereby can guarantee the utility model discloses a bolt construction can not take place not hard up.
In this embodiment, referring to fig. 1, an accommodating cavity for accommodating a portion of the positioning block 4 is disposed on the inner threaded surface of the second threaded hole 31, the positioning block 4 is movably connected to an inner wall of the accommodating cavity, an elastic member 5 is disposed between the positioning block 4 and the inner wall of the accommodating cavity, the elastic member 5 applies an elastic force to the positioning block 4 to move in the axial direction of the second threaded hole 31, and when the positioning block 4 is not subjected to an external force, the elastic member 5 can extend out of the inner threaded surface of the second threaded hole 31; when the positioning block 4 is subjected to the extrusion force of the second screw 22, the positioning block can be retracted into the accommodating cavity; a limiting block is arranged on the accommodating cavity, a limiting groove is arranged at the position of the positioning block 4 corresponding to the limiting block, and the limiting block is embedded into the limiting groove and is in sliding connection with the limiting groove, so that the positioning block 4 and the accommodating cavity are movably connected; meanwhile, the limiting block can limit the extension length of the positioning block 4 from the inner thread surface of the second threaded hole 31, so that the positioning block 4 is prevented from falling off from the accommodating cavity, the limiting block can effectively position the positioning block 4, and the positioning block 4 is prevented from moving in other directions except the radial direction of the second threaded hole 31; preferably, the elastic member 5 may be provided as a spring.
In the present embodiment, referring to fig. 1, a side surface of the positioning block 4 close to the axis of the second threaded hole 31 is inclined toward the axis of the second threaded hole 31 along a direction close to the first bolt 1, so that the side surface is an inclined surface in a vertical direction, and an end portion of the second screw 22 away from the second bolt head 21 is tapered, when the tapered end of the second screw 22 passes through the positioning block 4, the positioning block 4 can be retracted into the receiving cavity by using the tapered end and the inclined side surface, so as to facilitate connection between the second screw 22 and the first threaded hole 13.
In the present embodiment, referring to fig. 1, two positioning blocks 4 are provided, and the two positioning blocks 4 are symmetrically arranged based on the axis of the second threaded hole 31, so that the position of the second bolt 2 can be better positioned, and the relative rotation between the second bolt 2 and the nut 3 can be prevented.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A check bolt structure of mining machinery is characterized by comprising a first bolt, a second bolt and a nut;
the first bolt comprises a first bolt head and a first screw rod, the first screw rod is provided with a first external thread, and one end of the first screw rod, which is far away from the first bolt head, is provided with a first threaded hole;
the nut is provided with a second threaded hole, the internal thread of the second threaded hole is matched with the first external thread, a positioning block is arranged in the second threaded hole, part of the positioning block extends out of the inner surface of the second threaded hole, and the positioning block can move along the radial direction of the second threaded hole;
the second bolt comprises a second bolt head and a second screw rod, a second external thread is arranged on the second screw rod and matched with the internal thread of the first threaded hole, and a positioning groove capable of accommodating part of the positioning block is arranged on the peripheral surface of the second screw rod;
the first external thread and the second external thread are opposite in rotation direction.
2. The locking bolt structure of a mining machine according to claim 1, wherein an accommodating cavity for accommodating a part of the positioning block is provided on the internal thread surface of the second threaded hole, the positioning block is movably connected to an inner wall of the accommodating cavity, and an elastic member is provided between the positioning block and the inner wall of the accommodating cavity, and applies an elastic force to the positioning block to move in the axial direction of the second threaded hole; the accommodating cavity is provided with a limiting block, and the position of the positioning block corresponding to the limiting block is provided with a limiting groove.
3. The mining machine lock bolt structure as claimed in claim 2, wherein a side surface of the positioning block near the axis of the second threaded hole is inclined toward the axis of the second threaded hole in a direction near the first bolt.
4. The locking bolt structure for a mining machine according to claim 3, wherein an end of the second screw remote from the second bolt head is tapered.
5. The mining machine lock bolt structure according to any one of claims 1 to 3, wherein there are two positioning blocks, and the two positioning blocks are symmetrically arranged based on an axis of the second threaded hole.
6. The mining machine jam bolt structure of claim 2, wherein the elastic member is a spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120354611.1U CN214424890U (en) | 2021-02-08 | 2021-02-08 | Check bolt structure of mining machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120354611.1U CN214424890U (en) | 2021-02-08 | 2021-02-08 | Check bolt structure of mining machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214424890U true CN214424890U (en) | 2021-10-19 |
Family
ID=78071512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120354611.1U Expired - Fee Related CN214424890U (en) | 2021-02-08 | 2021-02-08 | Check bolt structure of mining machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214424890U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114952263A (en) * | 2022-06-07 | 2022-08-30 | 新疆理工学院 | Mechanical automatic feeding and discharging mechanical device |
-
2021
- 2021-02-08 CN CN202120354611.1U patent/CN214424890U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114952263A (en) * | 2022-06-07 | 2022-08-30 | 新疆理工学院 | Mechanical automatic feeding and discharging mechanical device |
| CN114952263B (en) * | 2022-06-07 | 2024-04-05 | 新疆理工学院 | Mechanical automatic feeding and discharging mechanical device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211019 |
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| CF01 | Termination of patent right due to non-payment of annual fee |