CN215257303U - Interlocking device for preventing pretightening force of wind power bolt set from loosening and nut from loosening - Google Patents
Interlocking device for preventing pretightening force of wind power bolt set from loosening and nut from loosening Download PDFInfo
- Publication number
- CN215257303U CN215257303U CN202120201408.0U CN202120201408U CN215257303U CN 215257303 U CN215257303 U CN 215257303U CN 202120201408 U CN202120201408 U CN 202120201408U CN 215257303 U CN215257303 U CN 215257303U
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- square sleeve
- loosening
- nut
- connecting screw
- preventing
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- 235000008331 Pinus X rigitaeda Nutrition 0.000 claims abstract description 9
- 235000011613 Pinus brutia Nutrition 0.000 claims abstract description 9
- 241000018646 Pinus brutia Species 0.000 claims abstract description 9
- 230000005611 electricity Effects 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
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Abstract
The invention discloses an interlocking device for preventing a pre-tightening force of a wind power bolt group from loosening and a nut from loosening, which comprises a first inner square sleeve and a second inner square sleeve which are tightly matched with the nut, wherein the first inner square sleeve and the second inner square sleeve are arranged in parallel; the outer wall of the first inner square sleeve is welded with a first connecting screw rod, the outer wall of one side, close to the first inner square sleeve, of the second inner square sleeve is welded with a second connecting screw rod, and the first connecting screw rod and the second connecting screw rod are connected through turnbuckles. The utility model discloses an interlock cup joints two nuts through interior square sleeve, and interior square sleeve and connecting screw pass through the welded rigid connection mode, prevent that it from producing relative rotation, have realized preventing that bolt pretightning force pine from taking off or the not hard up purpose of nut.
Description
Technical Field
The utility model belongs to the technical field of wind-powered electricity generation machinery equips, concretely relates to prevent wind-powered electricity generation bolt group pretightning force pine from taking off and the not hard up interlock of nut.
Background
On wind power equipment, the bolt and the nut are indispensable connection fittings, play and connect, fix, sealed etc. effect. The bolts are high-strength bolts, usually appear in the form of bolt groups, and meanwhile, in order to increase the connection strength and alleviate fatigue damage, certain pretightening force can be applied during installation, such as wind power tower cylinder flange connecting bolts, hub connecting bolts and the like. However, in the actual use process, due to factors such as vibration and fatigue load generated in the running process of the fan, the nut is often loosened after being used for a period of time, so that the problems of pre-tightening force reduction or nut loosening and the like are caused, and accidents such as fatigue fracture and the like can be caused, so that the bolt connection condition is always required to be regularly checked, and the bolt is fastened in time.
At present, modes such as additionally installing a gasket and the like are commonly adopted in wind power bolt installation to prevent a single bolt from loosening, but the methods can only slow down the loosening process to a certain extent and cannot thoroughly solve the problem. These methods are not effective particularly for high strength bolts that are subjected to high loads. Therefore, the design of the interlocking device which is suitable for 2 or more than 2 bolt sets and prevents the pretightening force of the wind power bolt set from loosening is particularly important.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a prevent wind-powered electricity generation bolt group pretightning force pine from taking off and the not hard up interlock of nut has solved current nut and has used the problem that the easy appearance is not hard up after a period, and then leads to the pretightning force to descend.
The utility model provides a, a prevent wind-powered electricity generation bolt group pretightning force pine from taking off and nut not hard up interlock, include the first interior square sleeve and the second interior square sleeve with the nut tight fit, the welding of first interior square sleeve lateral wall has first connecting screw, and the welding of second interior square sleeve is close to first interior square sleeve one side outer wall has second connecting screw, through basket screw connection between first connecting screw and the second connecting screw.
The utility model is also characterized in that,
the first inner square sleeve and the second inner square sleeve are both inner hexagonal sleeves or inner twelve square sleeves.
The first inner square sleeve and the first connecting screw rod are integrally formed; the second inner square sleeve and the second connecting screw rod are integrally formed.
The first inner square sleeve and the second inner square sleeve are made of stainless steel materials.
The turnbuckle is an OO-shaped turnbuckle.
The utility model has the advantages that:
the utility model discloses an interlock cup joints two nuts through interior square sleeve, and interior square sleeve and connecting screw pass through the welded rigid connection mode, prevent that it from producing relative rotation, have realized preventing that bolt pretightning force pine from taking off or the not hard up purpose of nut.
Drawings
Fig. 1 is a schematic structural view of an interlocking device for preventing a pretightening force of a wind power bolt set from loosening and a nut from loosening;
fig. 2 is the utility model relates to a prevent wind-powered electricity generation bolt group pretightning force pine from taking off and the not hard up interlock's of nut use structure chart.
In the figure, 1 is a first inner square sleeve, 2 is a second inner square sleeve, 3 is a first connecting screw rod, 4 is a second connecting screw rod, and 5 is a turnbuckle.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The utility model relates to an interlocking device for preventing wind power bolt group pretightening force from loosing and nut from loosing, as shown in figure 1, comprising a first inner square sleeve 1 and a second inner square sleeve 2 which are tightly matched with the nut, wherein the first inner square sleeve 1 and the second inner square sleeve 2 are arranged in parallel; the outer side wall of the first inner square sleeve 1 is welded with a first connecting screw rod 3, the outer wall of one side, close to the first inner square sleeve 1, of the second inner square sleeve 2 is welded with a second connecting screw rod 4, and the first connecting screw rod 3 and the second connecting screw rod 4 are connected through a turnbuckle 5;
the first inner square sleeve 1 and the second inner square sleeve 2 are both inner hexagonal sleeves or inner dodecagonal sleeves; the first inner square sleeve 1 and the second inner square sleeve 2 are adopted to sleeve the two nuts, so that the rotation of the nuts is limited;
the first inner square sleeve 1 and the second inner square sleeve 2 are both made of stainless steel materials;
the first inner square sleeve 1 and the first connecting screw 3 can be integrally formed; the second inner square sleeve 2 and the second connecting screw rod 4 can also be integrally formed; preventing relative rotation;
the turnbuckle 5 is an OO-shaped turnbuckle; the distance between the two sides is adjusted by the turnbuckle 5, so that the turnbuckle can adapt to connection at different distances;
the utility model discloses a prevent wind-powered electricity generation bolt group pretightning force pine from taking off and the not hard up interlock of nut, its concrete theory of operation is:
as shown in fig. 2, when in use, the first inner square sleeve 1 is firstly sleeved on the nut, then the distance is moderate by adjusting the turnbuckle 5, the second inner square sleeve 2 is ensured to be sleeved on the other nut, the movement of the nut is limited by the two inner square sleeves, and the interlocking between the two nuts is realized; when the pretightening force of the bolt is loosened or the nut is loosened, the nut can rotate towards the direction of loosening the nut, the rotation center of the nut is overlapped with the axial lead of the screw rod, after the nuts of the bolt group are connected through the interlocking device, the nut loosening is limited by the first inner square sleeve 1 and the second inner square sleeve 2, a single nut is required to be overlapped with the rotation center of the interlocking device when the nut loosening occurs, but obviously, the pretightening force loosening or the nut loosening is limited because the two connecting structures cannot be overlapped.
The utility model discloses an interlock through cup jointing two nuts through interior square sleeve, and interior square sleeve passes through the welded rigid connection mode with connecting screw, prevents that it from producing relative rotation, has realized preventing that bolt pretightning force pine from taking off or the not hard up purpose of nut.
Claims (5)
1. The utility model provides a prevent wind-powered electricity generation bolt group pretightning force pine and take off and nut not hard up interlock, its characterized in that includes the square sleeve (1) in first interior square sleeve (1) and the second with the nut tight fit, the welding of first interior square sleeve (1) lateral wall has first connecting screw rod (3), the welding of second interior square sleeve (2) is close to first interior square sleeve (1) one side outer wall has second connecting screw rod (4), connect through turn buckle (5) between first connecting screw rod (3) and the second connecting screw rod (4).
2. The interlocking device for preventing the wind power bolt set from being loosened and the nut from being loosened according to claim 1, wherein the first inner square sleeve (1) and the second inner square sleeve (2) are both inner hexagonal sleeves or inner twelve square sleeves.
3. The interlocking device for preventing the pretightening force of the wind power bolt set from loosening and the nut from loosening as claimed in claim 2, wherein the first inner square sleeve (1) and the first connecting screw (3) are integrally formed; the second inner square sleeve (2) and the second connecting screw rod (4) are integrally formed.
4. The interlocking device for preventing the wind power bolt set from loosening pre-tightening force and preventing the wind power bolt set from loosening nuts as claimed in claim 3, wherein the first inner square sleeve (1) and the second inner square sleeve (2) are both made of stainless steel materials.
5. The interlocking device for preventing the wind power bolt set from loosening pre-tightening force and preventing the wind power bolt set from loosening nuts as claimed in claim 1, wherein the turnbuckle (5) is an OO-shaped turnbuckle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120201408.0U CN215257303U (en) | 2021-01-25 | 2021-01-25 | Interlocking device for preventing pretightening force of wind power bolt set from loosening and nut from loosening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120201408.0U CN215257303U (en) | 2021-01-25 | 2021-01-25 | Interlocking device for preventing pretightening force of wind power bolt set from loosening and nut from loosening |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215257303U true CN215257303U (en) | 2021-12-21 |
Family
ID=79499475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120201408.0U Expired - Fee Related CN215257303U (en) | 2021-01-25 | 2021-01-25 | Interlocking device for preventing pretightening force of wind power bolt set from loosening and nut from loosening |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215257303U (en) |
-
2021
- 2021-01-25 CN CN202120201408.0U patent/CN215257303U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211221 |