CN104493475A - Synchronous pre-tightening device for bolt group of end surface gear shaft coupling - Google Patents
Synchronous pre-tightening device for bolt group of end surface gear shaft coupling Download PDFInfo
- Publication number
- CN104493475A CN104493475A CN201410819011.2A CN201410819011A CN104493475A CN 104493475 A CN104493475 A CN 104493475A CN 201410819011 A CN201410819011 A CN 201410819011A CN 104493475 A CN104493475 A CN 104493475A
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- Prior art keywords
- tightening
- wheel disc
- synchronous
- guide pipe
- tightening apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
- B23P19/06—Screw or nut setting or loosening machines
- B23P19/067—Bolt tensioners
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses a synchronous pre-tightening device for a bolt group of an end surface gear shaft coupling. The synchronous pre-tightening device comprises a bottom plate, an upper support, an upper wheel disk, a lower wheel disk, a pre-tightening support, a jack, tension bolts and pre-tightening bolts, wherein the bottom plate and the upper support are connected and positioned through a guide pipe, the lower end of a main shaft of the lower wheel disk is connected with the upper end of the jack, the upper end of the main shaft penetrates through a central hole of the pre-tightening support and is connected with the upper wheel disk, the upper wheel disk is movably connected with the guide pipe through a guide hole, moves up and down along the guide pipe and is vertical to the bottom plate, one end of each tension bolt penetrates through one of a plurality of through holes in the pre-tightening support and is connected with a tension nut, the other end of each tension bolt is connected with the pre-tightening bolt, an end cover is arranged at the lower end of the jack, and the end cover is fixedly connected with the pre-tightening support. The synchronous pre-tightening device disclosed by the invention has the advantages of being simple in structure, low in cost, simple and convenient in operation method, good in pre-tightening synchronicity, convenient toassembleand disassembleand precise in measurement results, and can realize synchronous pre-tightening of the pre-tightening bolts of the end surface gear shaft coupling under the situation that the efficiency is very highand theprecision is high.
Description
Technical field
The present invention relates to pre-tightening apparatus, specifically a kind of synchronous pre-tightening apparatus of the bolt group for end-tooth shaft coupling.
Background technology
End-tooth shaft coupling is widely used in aircraft turboshaft engine and gas turbine, there is connection, centering, torsion pass are reliable, the advantages such as mounting or dismounting are convenient, the Synchronous Pre sigma compactness of bolt can be most important, be related to rotor dynamic stability in the running and structural intergrity, synchronous pretension off resonance can form directly threat to its job security.
Summary of the invention
The object of the invention is for overcoming the deficiencies in the prior art, and a kind of synchronous pre-tightening apparatus of the bolt group for end-tooth shaft coupling is provided, this apparatus structure is simple, cost is low, method of operating is easy, measurement effect is accurate, and many bolts can be made in very efficient and high-precision situation to realize synchronous pretension.
The technical scheme realizing the object of the invention is:
A kind of synchronous pre-tightening apparatus of the bolt group for end-tooth shaft coupling, comprise base plate, upper bracket, upper wheel disc, lower wheel disc, pre-locking bracket, jack, turnbuckle and pretension bolt, location is connected by guide pipe between base plate and upper bracket, the main shaft lower end of lower wheel disc is connected with jack upper end, upper end is through the centre bore of pre-locking bracket, be connected with upper wheel disc, upper wheel disc is flexibly connected with guide pipe by pilot hole, and to move up and down and vertical with base plate along guide pipe, turnbuckle one end is through the multiple through holes on pre-locking bracket, be connected with tightening nut, the other end is connected with pretension bolt, jack lower end is provided with end cap, end cap is fixedly connected with pre-locking bracket.
The axial direction of described pretension bolt is evenly provided with foil gauge, and its strain data line is drawn by the through hole be arranged on upper wheel disc, is connected, carries out strain data collection by strip line with deformeter.
Described foil gauge need spray bare wire with insulated paint, air-dry, and in triplicate, makes it reach good insulation effect.
6 through holes are along the circumferential direction evenly distributed with around the centre bore of described pre-locking bracket.
The through hole that described turnbuckle is connected with pre-locking bracket is matched in clearance.
Described pre-locking bracket and lower wheel disc main shaft are matched in clearance, guarantee that lower wheel disc can freely move up and down.
The pilot hole of described guide pipe and upper wheel disc is matched in clearance, guarantees that upper wheel disc freely can move up and down on guide pipe.
Described guide pipe and upper bracket, base plate are interference fit, guarantee that guide pipe fixedly positioning on upper bracket and base plate.
During pretension, lower wheel disc main shaft is withstood in jack upper end, turnbuckle stretching pretension bolt, pretension bolt is extended, record bolt axial strain by strain acquisition system, the pretightning force needed for control, tighten pre-load nut by torque spanner with small moment of torsion, unload jack, tightening nut and turnbuckle after completing, make end-tooth shaft coupling many pretension bolts realize synchronous pretension in very efficient and high-precision situation.
Advantage of the present invention is: structure is simple, and cost is low, and method of operating is easy, and pretension synchronism is good, mounting or dismounting are convenient, measurement effect is accurate, and end-tooth shaft coupling many pretension bolts can be made in very efficient and high-precision situation to realize synchronous pretension.
Accompanying drawing explanation
Fig. 1 is many bolt synchronous pre-tightening apparatus structure chart of a kind of end-tooth shaft coupling provided by the invention.
Fig. 2 is strip line pin configuration figure provided by the invention.
Fig. 3 is tested pretension bolt structural representation provided by the invention.
Detailed description of the invention
With reference to Fig. 1, the synchronous pre-tightening apparatus of a kind of bolt group for end-tooth shaft coupling of the present invention, is made up of upper bracket 1, guide pipe 2, upper wheel disc 3, pre-locking bracket 4, lower wheel disc 5, jack 6, end cap 7, base plate 8, tightening nut 10, turnbuckle 11, pre-load nut 12, pretension bolt 13.On guide pipe 2, upper bracket is inserted respectively in lower two ends, position in the locating hole of base plate 8, keep mutual perpendicularity, guide pipe 2 inserts on shaft coupling and is flexibly connected with it in wheel disc 3 pilot hole, wheel disc 3 can freely be moved up and down, and can be vertical with base plate 8, under shaft coupling, wheel disc 5 main shaft is through the centre bore of pre-locking bracket 4, withstand the upper end of jack 6, turnbuckle 11 one end has screwed hole, the other end is processed with screw thread, six roots of sensation turnbuckle 11 is through circumferentially equally distributed six through holes around the centre bore of pre-locking bracket 4, screwed by threaded one end and tightening nut 10, one end of screwed hole is had to be spun on shaft coupling pretension bolt 13, end cap 7 is withstood in the lower end of jack 6, end cap 7 and pre-locking bracket 4 are fastenedly connected by screw 9.
With reference to Fig. 2-3, six roots of sensation pretension bolt 13 is pasted with foil gauge 17 at axial direction, the strip line of strain data is introduced from the nose end 14 of wheel disc shaft coupling 3 near spindle end, draw from the nose end 16 near end-tooth, and leave certain length, use 502 glue to be adhesively fixed on by exit on upper wheel disc 3 inwall; The pretension bolt 13 pasting foil gauge 17 is inserted in the bolt hole 15 of wheel disc 3 on shaft coupling successively, with scolding tin and flatiron, foil gauge 17 bare terminal end and strip line end are welded to connect, another line end of strip line is then connected on strain data Acquisition Instrument, carries out strain data collection.The impact that accuracy due to strain data is subject to temperature is very large, therefore need to do temperature-compensating on the acquisition method of strain, each foil gauge 17 of image data that needs is accessed deformeter with a foil gauge 17 not wanting image data according to half-bridge connection separately, the foil gauge 17 of image data does not need to be pasted onto on the metal surface near device yet, reaches the object of temperature-compensating.
The strain data of every root pretension bolt [13] imports deformeter into by strip line and carries out data acquisition, and the pretightning force size of every root pretension bolt [13] is:
, in formula
by the pretightning force of survey pretension bolt [13],
for the elastic modelling quantity of pretension bolt [13] material,
by the axial strain of survey pretension bolt [13],
for the diameter of pretension bolt [13].
Claims (8)
1. the synchronous pre-tightening apparatus for the bolt group of end-tooth shaft coupling, it is characterized in that: comprise base plate, upper bracket, upper wheel disc, lower wheel disc, pre-locking bracket, jack, turnbuckle and pretension bolt, location is connected by guide pipe between base plate and upper bracket, the main shaft lower end of lower wheel disc is connected with jack upper end, upper end is through the centre bore of pre-locking bracket, be connected with upper wheel disc, upper wheel disc is flexibly connected with guide pipe by pilot hole, and to move up and down and vertical with base plate along guide pipe, turnbuckle one end is through the multiple through holes on pre-locking bracket, be connected with tightening nut, the other end is connected with pretension bolt, jack lower end is provided with end cap, end cap is fixedly connected with pre-locking bracket.
2. synchronous pre-tightening apparatus according to claim 1, it is characterized in that: the axial direction of described pretension bolt is evenly provided with foil gauge, its strain data line is drawn by the through hole be arranged on upper wheel disc, is connected, carries out strain data collection by strip line with deformeter.
3. synchronous pre-tightening apparatus according to claim 1, is characterized in that: described foil gauge insulated paint sprays bare wire, air-dry, and in triplicate.
4. synchronous pre-tightening apparatus according to claim 1, is characterized in that: be along the circumferential direction evenly distributed with 6 through holes around the centre bore of described pre-locking bracket.
5. synchronous pre-tightening apparatus according to claim 1, is characterized in that: the through hole that described turnbuckle is connected with pre-locking bracket is matched in clearance.
6. synchronous pre-tightening apparatus according to claim 1, is characterized in that: described pre-locking bracket and lower wheel disc main shaft are matched in clearance.
7. synchronous pre-tightening apparatus according to claim 1, is characterized in that: the pilot hole of described guide pipe and upper wheel disc is matched in clearance.
8. synchronous pre-tightening apparatus according to claim 1, is characterized in that: described guide pipe and upper bracket, base plate are interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410819011.2A CN104493475B (en) | 2014-12-25 | 2014-12-25 | A kind of synchronization pre-tightening apparatus of the bolt group for end-tooth shaft coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410819011.2A CN104493475B (en) | 2014-12-25 | 2014-12-25 | A kind of synchronization pre-tightening apparatus of the bolt group for end-tooth shaft coupling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104493475A true CN104493475A (en) | 2015-04-08 |
| CN104493475B CN104493475B (en) | 2016-08-31 |
Family
ID=52934975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410819011.2A Expired - Fee Related CN104493475B (en) | 2014-12-25 | 2014-12-25 | A kind of synchronization pre-tightening apparatus of the bolt group for end-tooth shaft coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104493475B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113664507A (en) * | 2021-07-12 | 2021-11-19 | 合肥通用机械研究院有限公司 | Ultrahigh-pressure container pre-tightening device and pre-tightening method using same |
| CN116429573A (en) * | 2023-04-17 | 2023-07-14 | 北京工业大学 | Welding type IGBT module bonding wire tensile testing device and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201432194Y (en) * | 2009-06-25 | 2010-03-31 | 杭州电子科技大学 | Automatic assembly machine of sandwich type piezoelectric transducer |
| JP2012210678A (en) * | 2011-03-31 | 2012-11-01 | Aisin Aw Co Ltd | Bolt tightening device |
| US20130205575A1 (en) * | 2011-02-01 | 2013-08-15 | Mitsubishi Heavy Industries, Ltd. | Fastening and loosening device |
| CN103612115A (en) * | 2013-12-11 | 2014-03-05 | 成都海光核电技术服务有限公司 | Implanting machine for nuclear power plant reactor king bolt and method for implanting bolt |
| CN203516508U (en) * | 2013-09-13 | 2014-04-02 | 日照港股份有限公司第二港务分公司 | Limit moment coupler locking device |
| CN204565594U (en) * | 2014-12-25 | 2015-08-19 | 桂林航天工业学院 | A kind of synchronous pre-tightening apparatus of the bolt group for end-tooth shaft coupling |
-
2014
- 2014-12-25 CN CN201410819011.2A patent/CN104493475B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201432194Y (en) * | 2009-06-25 | 2010-03-31 | 杭州电子科技大学 | Automatic assembly machine of sandwich type piezoelectric transducer |
| US20130205575A1 (en) * | 2011-02-01 | 2013-08-15 | Mitsubishi Heavy Industries, Ltd. | Fastening and loosening device |
| JP2012210678A (en) * | 2011-03-31 | 2012-11-01 | Aisin Aw Co Ltd | Bolt tightening device |
| CN203516508U (en) * | 2013-09-13 | 2014-04-02 | 日照港股份有限公司第二港务分公司 | Limit moment coupler locking device |
| CN103612115A (en) * | 2013-12-11 | 2014-03-05 | 成都海光核电技术服务有限公司 | Implanting machine for nuclear power plant reactor king bolt and method for implanting bolt |
| CN204565594U (en) * | 2014-12-25 | 2015-08-19 | 桂林航天工业学院 | A kind of synchronous pre-tightening apparatus of the bolt group for end-tooth shaft coupling |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113664507A (en) * | 2021-07-12 | 2021-11-19 | 合肥通用机械研究院有限公司 | Ultrahigh-pressure container pre-tightening device and pre-tightening method using same |
| CN116429573A (en) * | 2023-04-17 | 2023-07-14 | 北京工业大学 | Welding type IGBT module bonding wire tensile testing device and method |
| CN116429573B (en) * | 2023-04-17 | 2023-12-08 | 北京工业大学 | Welding type IGBT module bonding wire tensile testing device and method |
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| Publication number | Publication date |
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| CN104493475B (en) | 2016-08-31 |
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Granted publication date: 20160831 Termination date: 20161225 |