CN202001470U - Stepped double eccentric bolt assembly - Google Patents
Stepped double eccentric bolt assembly Download PDFInfo
- Publication number
- CN202001470U CN202001470U CN2011200656972U CN201120065697U CN202001470U CN 202001470 U CN202001470 U CN 202001470U CN 2011200656972 U CN2011200656972 U CN 2011200656972U CN 201120065697 U CN201120065697 U CN 201120065697U CN 202001470 U CN202001470 U CN 202001470U
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- bolt
- eccentric
- hole
- bar
- eccentric bolt
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Abstract
The utility model relates to a bolt assembly for compensating the coaxiality tolerance of a bolt hole in the machinery industry, particularly to a stepped double eccentric bolt assembly for multiple hinge point assembling compensation in the mechanical structures such as aviation, space flight, civil use. The stepped double eccentric bolt assembly consists of a stepped eccentric bolt, an outer eccentric bushing and a looseness-proof sleeve, wherein bolt bars are arranged on both the two sides of the bolt head of the stepped eccentric bolt, the bolt bar on one side is a step shaft bolt bar, the bolt bar on the other side is an ordinary bolt bar, and one step shaft of the step bolt bar has an eccentric center as compared with another step shaft; one side of the ordinary bolt bar of the bolt head is graduated; the inner hole shaft center and the outer diameter shaft center of the outer eccentric bushing have eccentric centers, and the eccentricities of the inner hole shaft center and the outer diameter shaft center are equal to that of the step bolt bar. The bolt assembly formed by the stepped eccentric bolt, the outer eccentric bushing and the looseness-proof sleeve is utilized to carry out stepless regulation on the eccentric center of the connecting hole. The bolt assembly has wide regulating range, and can regulate as long as the approximate eccentricity is known without the need of any special measuring instrument, thereby reducing the cost.
Description
Technical field
The utility model relates to a kind of bolt assembly of mechanical industry compensation bolt hole coaxality tolerance, relates to the two eccentric bolt assemblies of step of the assembling compensation usefulness of Aeronautics and Astronautics, the many hinge points of mechanical structure such as civilian.
Background technique
In mechanical industry, often need utilize many hinge points to carry out structure and connect, the coaxality requirement is arranged between the hinge point.Because part manufacturing or be equipped with error, cause to exist eccentricly between the hinge point, do not satisfy the coaxality requirement, can't finish the structure assembling or influence function.In this case, need regulate, make it satisfy the coaxality requirement the hinge point of off-centre.
Traditional regulative mode adopts single eccentric bush to realize.Eccentric bush need be got full pattern at the scene, carries out following process again, and the sampling difficulty is big, and accuracy of manufacturing is difficult to guarantee.Single eccentric bush can only realize with the reference point being adjustment on the long circular arc of center of circle certain radius, and it is little to regulate surplus.The time-consuming consumption power of this compensation way, and can cause lining to add the worker repeatedly.In addition,, need rule again, locate, can't once assemble success, increase time, difficulty and the cost that more changes jobs greatly if when lining need be changed.
Summary of the invention
It is big, simple to operate and change easily the two eccentric bolt assemblies of step to the purpose of this invention is to provide a kind of adjusting surplus.Technical solution of the present invention is, step eccentric bolt assembly is made up of a step eccentric bolt, outer eccentric bush and loose-proof sleeve, all there is bolt shank the bolt head both sides of step eccentric bolt, wherein Yi Bian bolt shank is a step axle screw rod, the bolt shank of another side is the plain bolt bar, and a step axle of step screw rod has off-centre with respect to another step axle; Plain bolt bar one side of bolt head has groove; There is off-centre in the endoporus axle center and the external diameter axle center of outer eccentric bush, and its offset is identical with the offset of step screw rod, and its lining shaft shoulder is a regular hexagon, and chamfering and groove are arranged; Locking two grip blocks up and down that are with, the centre has to connect to be supported, and following grip block is opened the hole of regular hexagon, and last grip block is opened circular hole; It is corresponding with the regular hexagon of the outer eccentric bush shaft shoulder that following grip block is opened the hole of regular hexagon.
The step screw rod of described step eccentric bolt one side is the step screw rod of three steps, and one of them step between centers of the step axle of three step screw rods has off-centre.
The shoulder bolt bar of described step eccentric bolt is circular shaft or diminished shaft.
The shaft shoulder of described outer eccentric bush is regular hexagon or regular polygon.
The last grip block of described loose-proof sleeve is opened circular hole or square hole, on one side following grip block is opened regular hexagon hole or regular polygon hole.
The utlity model has following beneficial effect and advantage is, the utility model utilizes step eccentric bolt, outer eccentric bush and loose-proof sleeve to constitute two eccentric bolt assemblies the off-centre of pan is regulated.In the application process, eccentric bush outside at first installing in the bolt hole of off-centre inserts the step eccentric bolt.Rotate outer eccentric bush and step eccentric bolt then and carry out coaxality and regulate, regulate the back that puts in place and loose-proof sleeve is installed is carried out spacingly, prevent lining and bolt looseness, finish eccentric adjustment and operate.
Regulation range is bigger than existing single eccentric adjustment mode.Single eccentric adjustment such as single eccentric bush, can only realize that with the lining external diameter center of circle be the center, and the offset between lining internal diameter and the external diameter is that the circular arc-shaped linear of radius is regulated.Step eccentric bolt assembly is two eccentric adjustment modes, forms two offset assemblies by step eccentric bolt and eccentric bush, and rotating bolt and lining can be realized two eccentric adjustment.Regulation range is to be the center with the lining external diameter center of circle, and the offset of lining external diameter and internal diameter is the adjusting in the circle scope of radius.Regulation range increases.
The two eccentric bolt assemblies of step only need be known general offset because regulation range is big, process the bolt assembly that comprises this regulation range then and get final product, and need not the special measurement instrument, have reduced cost.In the eccentric adjustment process, only need rotating bolt and lining to be no more than 180 ° and get final product complete operation, do not need to add the worker, increase work efficiency.
Description of drawings:
Fig. 1 is the two eccentric bolt assembly schematic representation of step that the utility model proposes, and wherein, 1-a is the two eccentric bolt assembly decomposing schematic representations of step, and 2-b is the two eccentric bolt assembly schematic representation of step;
Fig. 2 is the outer eccentric bush schematic representation that the utility model proposes, and wherein, 2-a is a stereogram, and 2-b is a rear view, and 2-c is a side view, and 2-d is a plan view;
Fig. 3 is the step eccentric bolt schematic representation that the utility model proposes, and wherein, 3-a is a stereogram, and 3-b is a rear view, and 3-c is a side view, and 3-d is a plan view;
Fig. 4 is the loose-proof sleeve schematic representation that the utility model proposes, and wherein, 4-a is a stereogram, and 4-b is a rear view, and 4-c is a side view, and 4-d is a plan view;
Fig. 5 is that the two eccentric bolt assemblies of step that the utility model proposes are regulated schematic representation;
Embodiment:
Describe in detail according to Principles of Regulation of the present utility model and the structural type relevant below in conjunction with accompanying drawing with adjusting.
Embodiment shown in Figure 1 is the two eccentric bolt assembly schematic representation of step.The two eccentric bolt assemblies 1 of step are by outer eccentric bush 2, and step eccentric bolt 3 and loose-proof sleeve 4 are formed.
Embodiment shown in Figure 2 is outer eccentric bush schematic representation.Outer eccentric bush 2 is made up of lining shoulder 21 and lining 22.The radius of the inner and outer wall of jacket wall is respectively R3 and R4, and decentraction, and offset is δ 1, and is identical with the offset δ of step eccentric bolt.Lining lining shoulder 21 is conventional hexagon head form 25, is convenient to utilize existing instrument to carry out eccentric adjustment.Lining shoulder 21 1 sides are shaped on chamfering 24, are used for cooperating with loose-proof sleeve 4, and it is loosening to prevent to regulate the outer eccentric bush 2 and the step eccentric bolt 3 that put in place, and can compress by loose-proof sleeve 4 implementation structures.Lining shoulder 21 1 ends are shaped on groove 23, are used for regulating location and regulated quantity calculating.
Embodiment shown in Figure 3 is a step eccentric bolt schematic representation.Step eccentric bolt 3 is made up of bolt head 31 and three spiro rod sections 33,34,35.Bolt head 31 is the hexagon head form, is convenient to utilize existing instrument to carry out eccentric adjustment.The radius difference of spiro rod section 33,34 is respectively R1 and R2, forms step two sections screw rod junctions.Two sections screw rod disalignments, its offset are δ, and this offset can be chosen and identical with the offset δ 0 of outer eccentric bush 2 according to the eccentric degree of actual hinge.Spiro rod section 33 can partly or entirely be made screw thread as required, also can be the polished rod form.The polished rod of spiro rod section 33 partly is used for cooperating with pan, with transmitted load; Helical thread portion is used for the attaching nut, and implementation structure connects.Spiro rod section 34 is full polished rod form, is used for cooperating with the inwall of outer eccentric bush.Spiro rod section 35 can partly or entirely be made screw thread as required, and helical thread portion is used for the attaching nut, and implementation structure compresses connection.Bolt head 31 and spiro rod section 35 adjacent one sides are shaped on groove 32, are used for regulating location and regulated quantity calculating.
Embodiment shown in Figure 4 is loose-proof sleeve 4 schematic representation.Loose-proof sleeve 4 is made up of the supporting structure 43 between last grip block 41, following grip block 42 and the panel.Be shaped on hexagonal hole 45 in the middle of wherein descending grip block 42, limit, hole chamfering 46 cooperates with the chamfering 24 of the lining shoulder 21 of outer eccentric bush 2, and the bolt head 31 that hexagonal hole 45 is convenient to step eccentric bolt 3 passes through; Rounding hole 47 in the middle of the last clamping 41, the spiro rod section 35 of being convenient to step eccentric bolt 3 passes through.Last grip block 41 and the following grip block 42 outer rims supporting structure 43 that evenly distributes had both realized the linkage function of grip block, can also transmit the load that nut compresses, and finely tune off-centre in the space of while between can also utilizing between support.
Fig. 5 the utility model proposes the two eccentric bolt assemblies of step to regulate schematic representation.The eccentric adjustment scope of this assembly is a figure discal patch dash area 51.During application, reamed in the eccentric hinge hole, the outer eccentric bush 2 that machines is inserted pan after the fraising according to the outer diameter R4 of outer eccentric bush 2.Then step eccentric bolt 3 is inserted outer eccentric bush 2, rotate outer eccentric bush 2 and step eccentric bolt 3 mutually, regulate location and regulated quantity calculating according to groove 23 and 32, till spiro rod section 33 can insert not eccentric pan.Only the rotation regulated quantity of need step eccentric bolt 3 and outer eccentric bush 2 all is no more than 180 ° and can finishes eccentric adjustment work in theory.After adjusting puts in place, loose-proof sleeve 4 is inserted in bolt head 31 from spiro rod section 35 ends, the chamfering 46 of loose-proof sleeve 4 and the chamfering 24 of outer eccentric bush are cooperated, prevent to regulate the step eccentric bolt 3 and the outer eccentric bush 2 that put in place and rotate mutually.At last, standard nut is installed in the helical thread portion of spiro rod section 33 and 35, finishes structure and install.
Claims (5)
1. two eccentric bolt assemblies of a step, it is characterized in that, step eccentric bolt assembly is made up of a step eccentric bolt, outer eccentric bush and loose-proof sleeve, all there is bolt shank the bolt head both sides of step eccentric bolt, wherein Yi Bian bolt shank is a step axle screw rod, the bolt shank of another side is the plain bolt bar, and a step axle of step screw rod has off-centre with respect to another step axle; Plain bolt bar one side of bolt head has groove; There is off-centre in the endoporus axle center and the external diameter axle center of outer eccentric bush, and its offset is identical with the offset of step screw rod, and its lining shaft shoulder is a regular hexagon, and chamfering and groove are arranged; Locking two grip blocks up and down that are with, the centre has to connect to be supported, and following grip block is opened the hole of regular hexagon, and last grip block is opened circular hole; It is corresponding with the regular hexagon of the outer eccentric bush shaft shoulder that following grip block is opened the hole of regular hexagon.
2. the two eccentric bolt assemblies of step according to claim 1 is characterized in that the step screw rod of described step eccentric bolt one side is the step screw rod of two or three steps, between one of them step screw axis and other step screw axiss off-centre are arranged.
3. the two eccentric bolt assemblies of step according to claim 1 is characterized in that the shoulder bolt bar of described step eccentric bolt is circular shaft or diminished shaft.
4. the two eccentric bolt assemblies of step according to claim 1 is characterized in that the shaft shoulder of described outer eccentric bush is regular hexagon or regular polygon.
5. the two eccentric bolt assemblies of step according to claim 1 is characterized in that the last grip block of described loose-proof sleeve is opened circular hole or square hole, on one side following grip block is opened regular hexagon hole or regular polygon hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200656972U CN202001470U (en) | 2011-03-15 | 2011-03-15 | Stepped double eccentric bolt assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200656972U CN202001470U (en) | 2011-03-15 | 2011-03-15 | Stepped double eccentric bolt assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202001470U true CN202001470U (en) | 2011-10-05 |
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ID=44704213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200656972U Expired - Lifetime CN202001470U (en) | 2011-03-15 | 2011-03-15 | Stepped double eccentric bolt assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202001470U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723246A (en) * | 2012-06-07 | 2012-10-10 | 平高集团有限公司 | Circuit breaker and assembling structure of three-phase linkage transmission mechanism thereof |
| CN103736425A (en) * | 2013-12-26 | 2014-04-23 | 北京国药龙立自动化技术有限公司 | Feeding mechanism with compaction device |
| CN104889906A (en) * | 2015-05-28 | 2015-09-09 | 江西洪都航空工业集团有限责任公司 | Support positioner |
| CN105697502A (en) * | 2016-03-23 | 2016-06-22 | 上海航天测控通信研究所 | Clearance-free mounting mechanism with adjustable hole site and mounting method |
| EP3186587A4 (en) * | 2014-08-25 | 2018-04-11 | Sikorsky Aircraft Corporation | Adjustment features for engine cowl door |
| CN108253004A (en) * | 2017-12-15 | 2018-07-06 | 中国航空工业集团公司成都飞机设计研究所 | A kind of bolt assembly of adjustable single ears connection coaxiality |
| CN110894842A (en) * | 2018-09-13 | 2020-03-20 | 空中客车简化股份公司 | Single shear attachment device with eccentric shaft and eccentric sleeve, mechanical assembly including such device, and assembly process |
| CN111472460A (en) * | 2020-04-21 | 2020-07-31 | 淮安市博彦土木工程科学研究院有限公司 | Core filling type compensation base plate with dislocation-adjustable alignment preformed hole and use method thereof |
| CN113530950A (en) * | 2021-07-19 | 2021-10-22 | 海盐猛凌汽车配件有限公司 | Adjustable bolt |
| WO2022051877A1 (en) * | 2020-09-11 | 2022-03-17 | 苏犁 | Bolt pair capable of ajdusting hole position deviation |
| DE102020128089A1 (en) | 2020-10-26 | 2022-04-28 | Airbus Operations Gmbh | Aircraft component positioning bushing, mounting arrangement and aircraft structure |
-
2011
- 2011-03-15 CN CN2011200656972U patent/CN202001470U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723246A (en) * | 2012-06-07 | 2012-10-10 | 平高集团有限公司 | Circuit breaker and assembling structure of three-phase linkage transmission mechanism thereof |
| CN102723246B (en) * | 2012-06-07 | 2014-12-31 | 国家电网公司 | Circuit breaker and assembling structure of three-phase linkage transmission mechanism thereof |
| CN103736425A (en) * | 2013-12-26 | 2014-04-23 | 北京国药龙立自动化技术有限公司 | Feeding mechanism with compaction device |
| EP3186587A4 (en) * | 2014-08-25 | 2018-04-11 | Sikorsky Aircraft Corporation | Adjustment features for engine cowl door |
| CN104889906A (en) * | 2015-05-28 | 2015-09-09 | 江西洪都航空工业集团有限责任公司 | Support positioner |
| CN105697502A (en) * | 2016-03-23 | 2016-06-22 | 上海航天测控通信研究所 | Clearance-free mounting mechanism with adjustable hole site and mounting method |
| CN108253004A (en) * | 2017-12-15 | 2018-07-06 | 中国航空工业集团公司成都飞机设计研究所 | A kind of bolt assembly of adjustable single ears connection coaxiality |
| CN110894842A (en) * | 2018-09-13 | 2020-03-20 | 空中客车简化股份公司 | Single shear attachment device with eccentric shaft and eccentric sleeve, mechanical assembly including such device, and assembly process |
| CN111472460A (en) * | 2020-04-21 | 2020-07-31 | 淮安市博彦土木工程科学研究院有限公司 | Core filling type compensation base plate with dislocation-adjustable alignment preformed hole and use method thereof |
| WO2022051877A1 (en) * | 2020-09-11 | 2022-03-17 | 苏犁 | Bolt pair capable of ajdusting hole position deviation |
| DE102020128089A1 (en) | 2020-10-26 | 2022-04-28 | Airbus Operations Gmbh | Aircraft component positioning bushing, mounting arrangement and aircraft structure |
| CN113530950A (en) * | 2021-07-19 | 2021-10-22 | 海盐猛凌汽车配件有限公司 | Adjustable bolt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111005 |
|
| CX01 | Expiry of patent term |