CN209774542U - Device applied to large-scale bolt dismantling and fastening - Google Patents
Device applied to large-scale bolt dismantling and fastening Download PDFInfo
- Publication number
- CN209774542U CN209774542U CN201920349279.2U CN201920349279U CN209774542U CN 209774542 U CN209774542 U CN 209774542U CN 201920349279 U CN201920349279 U CN 201920349279U CN 209774542 U CN209774542 U CN 209774542U
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- CN
- China
- Prior art keywords
- nut
- hollow
- original
- jack
- extension screw
- 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.)
- Expired - Fee Related
Links
- 238000009628 steelmaking Methods 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Working Measures On Existing Buildindgs (AREA)
Abstract
The utility model belongs to the field of steel-making equipment, and relates to a device applied to the dismantling and fastening of large bolts; comprises a supporting sleeve, an extension screw, an auxiliary nut, a gasket and a hollow hydraulic jack; the support sleeve is sleeved outside the original nut, the support sleeve is not in contact with the original nut, the hollow jack is placed on the support sleeve, the extension screw rod penetrates through the center of the hollow jack and is installed on the original bolt, and the hollow jack is fixed on the extension screw rod through the auxiliary nut after the gasket is placed on the hollow jack. The utility model has the characteristics of simple structure, practicality are strong, convenient to use etc.
Description
Technical Field
The utility model belongs to the steelmaking equipment field relates to a be applied to large-scale bolt and demolish and device of fastening.
Background
The bolt above M80 cannot meet the requirement of the expected force when being fastened by using a common wrench, and the bolt with larger expected force cannot be detached basically when being detached by using the common wrench. The hydraulic wrench is ideal for dismantling and fastening the bolt, but the overhaul unit cannot be equipped with hydraulic wrenches of various specifications, the hydraulic wrench is expensive, and the ordering period is long.
Disclosure of Invention
An object of the utility model is to solve the above-mentioned problem, provide one kind and have simple structure, practicality strong, characteristics such as convenient to use are applied to the device that large-scale bolt demolishd and fasten.
The purpose of the utility model is realized like this: a device applied to the dismounting and fastening of a large bolt comprises a support sleeve, an extension screw, an auxiliary nut, a gasket and a hollow hydraulic jack; the support sleeve is sleeved outside the original nut, the support sleeve is not in contact with the original nut, the hollow jack is placed on the support sleeve, the extension screw rod penetrates through the center of the hollow jack and is installed on the original bolt, and the hollow jack is fixed on the extension screw rod through the auxiliary nut after the gasket is placed on the hollow jack.
Drawings
The present invention will be further explained with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
As shown in the attached drawing, the device applied to the dismounting and fastening of the large bolt comprises a supporting sleeve, an extension screw, an auxiliary nut, a gasket and a hollow hydraulic jack.
The outer surface of an original nut 5 is sleeved with a supporting sleeve 6, the supporting sleeve 6 is not contacted with the original nut 5, a hollow jack 4 is placed on the supporting sleeve 6, an extension screw rod 1 is installed on an original bolt after penetrating through the center of the hollow jack 4, and a gasket 3 is placed on the hollow jack 4 and then fixed on the extension screw rod 1 by an auxiliary nut 2.
When the large bolt is disassembled: firstly, a wrench is sleeved outside an original nut 5, a supporting sleeve 6 is sleeved outside the wrench, a hollow hydraulic jack 4 is dropped on the supporting sleeve 6, an extension screw 1 is screwed on the original screw, a gasket 3 is sleeved on the extension screw 1 and then is screwed on the extension screw 1 by an auxiliary nut 2 to press the gasket tightly, the hollow jack 4 is pressurized, the original bolt is pulled out after the hollow jack 4 reaches pre-tightening pressure, the friction force between the original nut 5 and a pressed surface is reduced or eliminated, round steel is inserted into a processing hole of the wrench, and the original nut 5 is loosened by pulling the wrench.
When fastening large bolts: when the nut is fastened, the operation is reversed according to the steps, and the bolt with the expected force requirement can be converted into the jacking pressure of the hydraulic hollow jack 4 according to the magnitude of the expected force.
Claims (1)
1. A device applied to the dismounting and fastening of a large bolt comprises a support sleeve, an extension screw, an auxiliary nut, a gasket and a hollow hydraulic jack; the method is characterized in that: the supporting sleeve (6) is sleeved outside the original nut (5), the supporting sleeve (6) is not in contact with the original nut (5), the hollow jack (4) is placed on the supporting sleeve (6), the extension screw (1) penetrates through the center of the hollow jack (4) and is installed on the original bolt, and the auxiliary nut (2) is used for fixing the extension screw (1) after the gasket (3) is placed on the hollow jack (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920349279.2U CN209774542U (en) | 2019-03-19 | 2019-03-19 | Device applied to large-scale bolt dismantling and fastening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920349279.2U CN209774542U (en) | 2019-03-19 | 2019-03-19 | Device applied to large-scale bolt dismantling and fastening |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209774542U true CN209774542U (en) | 2019-12-13 |
Family
ID=68798482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920349279.2U Expired - Fee Related CN209774542U (en) | 2019-03-19 | 2019-03-19 | Device applied to large-scale bolt dismantling and fastening |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209774542U (en) |
-
2019
- 2019-03-19 CN CN201920349279.2U patent/CN209774542U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210913 Address after: 830022 No. 15, Bayi Road, Tunhe District, Urumqi City, Xinjiang Uygur Autonomous Region Patentee after: Xinjiang DDT mutual force Industrial Technology Co.,Ltd. Address before: 830022 No. 1 Xingang Road, Toutun River District, Urumqi, the Xinjiang Uygur Autonomous Region. Patentee before: BAOSTEEL GROUP XINJIANG BAYI IRON & STEEL Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191213 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |