CN102840214B - Bolt group - Google Patents
Bolt group Download PDFInfo
- Publication number
- CN102840214B CN102840214B CN201110167652.0A CN201110167652A CN102840214B CN 102840214 B CN102840214 B CN 102840214B CN 201110167652 A CN201110167652 A CN 201110167652A CN 102840214 B CN102840214 B CN 102840214B
- Authority
- CN
- China
- Prior art keywords
- bolt
- nut
- adapter sleeve
- ratchet
- keyway
- 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.)
- Active
Links
- 230000008719 thickening Effects 0.000 claims description 12
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 239000013013 elastic material Substances 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 241001133184 Colletotrichum agaves Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/24—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
- F16B39/282—Locking by means of special shape of work-engaging surfaces, e.g. notched or toothed nuts
Abstract
The invention relates to the technical fields of an automobile and machinery and discloses a bolt group. The bolt group comprises a bolt and a nut; a fastening sleeve is sleeved on a screw of the bolt; the fastening sleeve is arranged between the head part of the bolt and the nut; a group of one-way ratchets are respectively arranged on the opposite end faces of the fastening sleeve and the nut; two groups of ratchets are mutually meshed, and the loose directions of the ratchets on the end face of the nut are the same as the rotating direction of the nut fastened oppositely to the bolt. According to the bolt group, one matched fastening sleeve is added on the basis of a common bolt group; the fastening sleeve is matched with a flange nut, and the attached surface adopts a ratchet-type mounting surface, so that the nut reversely rotates difficultly after being forwards fastened by the nut. Therefore, the anti-loosing performance of the nut is greatly strengthened; the security of mounting mechanical parts is improved; the overall bolt group is simple in structure, convenient to mount and dismantle and strong in applicability.
Description
Technical field
The present invention relates to automobile, field of mechanical technique, particularly relate to a kind of anti-loose clamping bolt group.
Background technique
In automobile production and machinery fastener cycle, usual employing plain bolt, nut and elastic washer carry out fastening, within a period of time of short-term, can be good realize the fastening of connecting piece, but As time goes on, Tightening moment is decayed gradually, and along with the continuous vibration of vibration source, cause attaching nut to occur getting loose, finally occur that nut comes off, and then produce potential faults.
Summary of the invention
(1) technical problem that will solve
The technical problem to be solved in the present invention is the phenomenon that gets loose how avoiding nut in fastener cycle.
(2) technological scheme
In order to solve the problems of the technologies described above, the invention provides a kind of bolt group, comprise screw bolt and nut, nut is connected by screw-threaded coupling with bolt, the screw rod of bolt is arranged with an adapter sleeve, described adapter sleeve, between bolt head and nut, the end face that described adapter sleeve is relative with nut is radially respectively arranged with one group of unidirectional ratchet, two groups of ratchets are meshed, and on described nut end face, the direction that gets loose of ratchet is identical relative to the sense of rotation of bolt-locking with nut.
Wherein, described adapter sleeve comprises sleeve pipe and ratchet base; Described ratchet base is arranged on sleeve pipe one end, and one side end face arranges described unidirectional ratchet.
Wherein, one deck thickening part is provided with on the screw rod of described bolt head, thickening part offers vertically several bolt keyways, the described sleeve pipe the other end is provided with several adapter sleeve keyways, and described sleeve pipe and bolt are by described adapter sleeve keyway and the engaging of bolt keyway.
Wherein, several bolt keyways described are evenly distributed on described thickening part.
Wherein, described adapter sleeve keyway is equal with bolt keyway number.
Wherein, also comprise elastic ring, be set on described screw rod, contact with described ratchet base opposite side end face.
Wherein, described ratchet base cross section is circular, and its internal diameter is equal with casing inner diameter.
Wherein, described elastic ring is spring or the packing ring for being made up of elastic material.
Wherein, the external diameter of described thickening part is equal with the external diameter of described sleeve pipe.
Wherein, described nut is flange nut, and the radius that described flange nut has the end face of unidirectional ratchet is equal with the radius that described adapter sleeve has the end face of unidirectional ratchet.
(3) beneficial effect
The bolt group that technique scheme provides, the basis of ordinary bolt set adds an adapter sleeve coordinated with it, adapter sleeve coordinates with flange nut, both faying surfaces adopt Retchet gear type attachment face, thus after making nut fastening by forward, counter-rotating difficulty, thus the anti-loosening property of stiffnut greatly, improve the Security that mechanical parts are installed; Further, a whole set of bolt group structure is simple, and easy installation and removal, applicability is strong.
Accompanying drawing explanation
Fig. 1 is the structural representation of the bolt group of the embodiment of the present invention;
Fig. 2 is the structural representation of bolt in the embodiment of the present invention;
Fig. 3 is the structural representation of nut in the embodiment of the present invention;
Fig. 4 is the structural representation of adapter sleeve in the embodiment of the present invention;
Fig. 5 uses the bolt group of the embodiment of the present invention to carry out the fixing structural representation of connecting plate.
Wherein, 1: bolt; 1-1: bolt head; 1-2: screw rod; 1-3: bolt keyway; 1-4: thickening part; 2: nut; 2-1: nut ratchet face; 3: adapter sleeve; 3-1: sleeve pipe; 3-2: ratchet base; 3-3: adapter sleeve keyway; 3-4: adapter sleeve ratchet face; 4: elastic ring; 5: the first connecting plates; 6: the second connecting plates.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
Fig. 1 shows the structural representation of the bolt group of the embodiment of the present invention, and it comprises bolt 1 and nut 2, and bolt 1 and nut 2 adopt conventional screw-threaded coupling to be connected.In order to prevent getting loose between bolt 1 and nut 2, the bolt group of the present embodiment adds anti-loose adapter sleeve 3, adapter sleeve 3 is arranged between bolt head 1-1 and nut 2, the end face that adapter sleeve 3 is relative with nut 2 is radially respectively arranged with one group of unidirectional ratchet, two groups of ratchets are meshed, and the sense of rotation that on nut 2 end face, the direction that the gets loose bolt 1 relative to nut 2 of ratchet is locked is identical.
As shown in Figure 2, the bolt 1 of the present embodiment comprises bolt head 1-1 and screw rod 1-2, screw thread (not shown) is being provided with away from the screw rod 1-2 of bolt head 1-1, for realizing being threaded with nut 2, the screw rod 1-2 near bolt head 1-1 is provided with several bolt keyways 1-3.The setting of bolt keyway 1-3, by arranging one deck thickening part 1-4 on the screw rod 1-2 near bolt head 1-1, evenly can be opened in several bolt keyways 1-3 on the 1-4 of thickening part vertically.
As shown in Figure 3, the nut 2 of the present embodiment selects flange nut, and the end face that flange nut is relative with adapter sleeve 3 arranges one group of unidirectional ratchet, forms nut ratchet face 2-1.Because the center of nut 2 is tapped hole, so the shape of cross section of nut ratchet face 2-1 is circular, its internal diameter is equal with the internal diameter of tapped hole.
Corresponding with the bolt 1 shown in Fig. 2 and Fig. 3 and nut 2 structure, Fig. 4 shows the structural representation of the adapter sleeve 3 of the present embodiment, it comprises sleeve pipe 3-1 and ratchet base 3-2, ratchet base 3-2 is arranged on sleeve pipe 3-1 one end, namely ratchet base 3-2 extends radially outward in sleeve pipe 3-1 end, form annular base, the internal diameter of ratchet base 3-2 is equal with the internal diameter of sleeve pipe 3-1, the external diameter of ratchet base 3-2 is equal with the external diameter of nut ratchet face 2-1, ratchet base 3-2 end face arranges one group of unidirectional ratchet, form adapter sleeve ratchet face 3-4, nut ratchet face 2-1 and adapter sleeve ratchet face 3-4 is engaged.
The other end of sleeve pipe 3-1 is provided with several adapter sleeve keyways 3-3, and adapter sleeve keyway 3-3 is identical respectively with width with the number of bolt keyway 1-3, and the internal diameter of sleeve pipe 3-1 is not less than the external diameter of screw rod 1-2, and sleeve pipe 3-1 can be enclosed within screw rod 1-2.The staggered engaging of adapter sleeve keyway 3-3 and bolt keyway 1-3, makes adapter sleeve 3 and bolt 1 without axial-rotation.Adapter sleeve keyway 3-3 and bolt keyway 1-3 is when staggered engaging, gap should be there is vertically, assemble according to the different adapter sleeve 3 of the different-thickness reasonable selection of fastening object, bolt 1, can not make adapter sleeve keyway 3-3 that bolt keyway 1-3 dieback cannot be realized the fastening of fastening object.
In the present embodiment, the external diameter of sleeve pipe 3-1 should be set to equal with the external diameter of thickening part 1-4, and be convenient to after adapter sleeve 3 engaged by keyway with bolt 1, fastening screw diameter on each section of the bolt group of formation is consistent.
In the present embodiment, adapter sleeve ratchet face 3-4 is meshed with nut ratchet face 2-1, and on nut ratchet face 2-1, direction and nut 2 situation that bolt 1 sense of rotation of locking is identical relatively that gets loose of ratchet mainly contains two kinds.The first situation is: turned clockwise by relative for nut 2 bolt 1, realize the locking of the relative bolt 1 of nut 2, now tightened relative cover ratchet face 3-4, the direction that gets loose of nut ratchet face 2-1 is also clockwise direction, engage between nut 2 with adapter sleeve 3, realize fastening counterclockwise after, nut 2 turns clockwise difficulty, nut 2 self produces the resistance turned clockwise, thus achieves nut anti-looseness and take off function.The second situation is identical with the principle of the first situation, and difference part is that the locking direction of the relative bolt 1 of nut 2 is different, and nut ratchet face 2-1, relative to the direction difference that gets loose of adapter sleeve ratchet face 3-4, does not repeat them here.
In the present embodiment, in order to realize the tight engagement of nut ratchet face 2-1 and adapter sleeve ratchet face 3-4, prevent getting loose between nut ratchet face 2-1 and adapter sleeve ratchet face 3-4, screw rod 1-2 is also arranged with elastic ring 4, elastic ring 4 contacts with the opposite side end face of the ratchet base 3-2 of adapter sleeve 3, when bolt group by the present embodiment is used for fastened object fastening, elastic ring 4 is between fastened object and adapter sleeve 3.The effect of elastic ring 4 produces axial elasticity power to adapter sleeve 3, and adapter sleeve 3 and nut 2 are closely cooperated, so the packing ring etc. that elastic ring 4 can be selected spring or be made up of elastic material.
The bolt group of the embodiment of the present invention is used to carry out the fastener cycle of two pieces of connecting plates as follows: first, by bolt 1 through after the first connecting plate 5 and the second connecting plate 6, screw rod 1-2 overlaps elastic ring 4, then on bolt 1, load onto adapter sleeve 3, make adapter sleeve keyway 3-3 realize keyway with bolt keyway 1-3 and coordinate; Then, band upper flange nut 2 carries out fastening, along with the increase of Tightening moment, elastic ring 4 deforms, produce along bolt axis to elastic force, adapter sleeve 3 is fitted tightly with the ratchet face of flange nut 2, tighten along with flange nut 3 rotates towards locking direction, reverse ratchet on adapter sleeve 3 makes nut cannot counterrotating, thus flange nut 2 cannot be got loose.
As can be seen from the above embodiments, the embodiment of the present invention adds an adapter sleeve coordinated with it on the basis of ordinary bolt set, adapter sleeve coordinates with flange nut, both faying surfaces adopt Retchet gear type attachment face, thus after making nut fastening by forward, counter-rotating difficulty, thus the anti-loosening property of stiffnut greatly, improve the Security that mechanical parts are installed; Further, a whole set of bolt group structure is simple, and easy installation and removal, applicability is strong.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and replacement, these improve and replace and also should be considered as protection scope of the present invention.
Claims (8)
1. bolt group, comprise screw bolt and nut, nut is connected by screw-threaded coupling with bolt, it is characterized in that, the screw rod of bolt is arranged with an adapter sleeve, described adapter sleeve, between bolt head and nut, the end face that described adapter sleeve is relative with nut is radially respectively arranged with one group of unidirectional ratchet, two groups of ratchets are meshed, and on described nut end face, the direction that gets loose of ratchet is identical relative to the sense of rotation of bolt-locking with nut; Described adapter sleeve comprises sleeve pipe and ratchet base; Described ratchet base is arranged on sleeve pipe one end, and one side end face arranges described unidirectional ratchet; One deck thickening part is provided with on the screw rod of described bolt head, thickening part offers vertically several bolt keyways, the described sleeve pipe the other end is provided with several adapter sleeve keyways, described adapter sleeve keyway is identical respectively with width with the number of bolt keyway, described sleeve pipe and bolt are by described adapter sleeve keyway and the engaging of bolt keyway, when staggered engaging, there is gap vertically in described adapter sleeve keyway and bolt keyway.
2. bolt group as claimed in claim 1, it is characterized in that, several bolt keyways described are evenly distributed on described thickening part.
3. bolt group as claimed in claim 1, it is characterized in that, described adapter sleeve keyway is equal with bolt keyway number.
4. bolt group as claimed in claim 1, is characterized in that, also comprise elastic ring, be set on described screw rod, contact with described ratchet base opposite side end face.
5. bolt group as claimed in claim 1, it is characterized in that, described ratchet base cross section is circular, and its internal diameter is equal with casing inner diameter.
6. bolt group as claimed in claim 4, is characterized in that, described elastic ring is spring or the packing ring for being made up of elastic material.
7. bolt group as claimed in claim 1, it is characterized in that, the external diameter of described thickening part is equal with the external diameter of described sleeve pipe.
8., as the bolt group as described in arbitrary in claim 1-7, it is characterized in that, described nut is flange nut, and the radius that described flange nut has the end face of unidirectional ratchet is equal with the radius that described adapter sleeve has the end face of unidirectional ratchet.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110167652.0A CN102840214B (en) | 2011-06-21 | 2011-06-21 | Bolt group |
| PCT/CN2012/075115 WO2012174951A1 (en) | 2011-06-21 | 2012-05-07 | Bolt set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110167652.0A CN102840214B (en) | 2011-06-21 | 2011-06-21 | Bolt group |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102840214A CN102840214A (en) | 2012-12-26 |
| CN102840214B true CN102840214B (en) | 2015-04-22 |
Family
ID=47367865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110167652.0A Active CN102840214B (en) | 2011-06-21 | 2011-06-21 | Bolt group |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102840214B (en) |
| WO (1) | WO2012174951A1 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103161814A (en) * | 2013-04-11 | 2013-06-19 | 上海理工大学 | Pre-tightening-force-adjustable anti-loosening rotating shaft mechanism |
| CN104295587A (en) * | 2014-09-17 | 2015-01-21 | 平湖市当湖街道飞天人机械图文设计服务部 | Automobile chassis connecting piece and thermal processing technology thereof |
| CN105003519B (en) * | 2015-08-04 | 2017-09-19 | 申书达 | A kind of dismountable check bolt or screw assembly |
| CN107299927B (en) * | 2017-06-15 | 2023-05-23 | 宁波信泰机械有限公司 | Self-locking fixing mechanism of luggage rack |
| CN108825633B (en) * | 2018-07-10 | 2020-06-02 | 东莞市品固精密五金制品有限公司 | Self-tightening screw |
| CN108757698B (en) * | 2018-09-05 | 2024-04-12 | 合肥惠科金扬科技有限公司 | Anti-loosening device |
| CN111114374A (en) * | 2018-11-01 | 2020-05-08 | 北京新能源汽车股份有限公司 | Locking mechanism, battery pack, battery locking device, vehicle and battery replacement method |
| CN109458390B (en) * | 2018-12-20 | 2023-09-26 | 浙江安盛汽车零部件有限公司 | Split type fastening nut |
| CN109396218B (en) * | 2018-12-28 | 2020-04-10 | 苏州捷本机电技术有限公司 | Hydraulic straightening and cutting machine for automobile part processing materials |
| CN114087271B (en) * | 2021-11-13 | 2023-05-26 | 中国国家铁路集团有限公司 | Positioning device for locomotive gear box and positioning and indirect anti-loosening method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2592316Y (en) * | 2003-01-11 | 2003-12-17 | 刘太恒 | Milling clamping-head and its spanner |
| CN201306354Y (en) * | 2008-12-05 | 2009-09-09 | 西安曼海特工业技术有限公司 | Looseness preventing bolt capable of being repeatedly used |
| CN201661583U (en) * | 2010-03-31 | 2010-12-01 | 青岛科技大学 | Thread connection anti-looseness device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2816908C2 (en) * | 1978-04-19 | 1982-02-25 | Messerschmitt-Bölkow-Blohm GmbH, 8000 München | Form-fitting secured axle bolt connection |
| US4971501A (en) * | 1984-03-16 | 1990-11-20 | Hi-Shear Corporation | Self-locking, releasable lock nut |
| CN2342159Y (en) * | 1996-02-14 | 1999-10-06 | 景同祥 | Anti-loose device for nut |
| EP0833067A1 (en) * | 1996-09-26 | 1998-04-01 | Andreas Ortmann | Non-removable threaded joint |
| CN2429678Y (en) * | 1999-10-11 | 2001-05-09 | 张佩师 | Cup-shaped security loosen-proof screw assembly |
| CN201027769Y (en) * | 2007-05-10 | 2008-02-27 | 刘胜忠 | Check bolt and nut component |
| CN101871480A (en) * | 2009-04-22 | 2010-10-27 | 王国仲 | Fixing device |
-
2011
- 2011-06-21 CN CN201110167652.0A patent/CN102840214B/en active Active
-
2012
- 2012-05-07 WO PCT/CN2012/075115 patent/WO2012174951A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2592316Y (en) * | 2003-01-11 | 2003-12-17 | 刘太恒 | Milling clamping-head and its spanner |
| CN201306354Y (en) * | 2008-12-05 | 2009-09-09 | 西安曼海特工业技术有限公司 | Looseness preventing bolt capable of being repeatedly used |
| CN201661583U (en) * | 2010-03-31 | 2010-12-01 | 青岛科技大学 | Thread connection anti-looseness device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102840214A (en) | 2012-12-26 |
| WO2012174951A1 (en) | 2012-12-27 |
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