CN103878573A - Hydraulic torque-resisting mechanism - Google Patents
Hydraulic torque-resisting mechanism Download PDFInfo
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- CN103878573A CN103878573A CN201210563278.0A CN201210563278A CN103878573A CN 103878573 A CN103878573 A CN 103878573A CN 201210563278 A CN201210563278 A CN 201210563278A CN 103878573 A CN103878573 A CN 103878573A
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- hydraulic cylinder
- connection block
- connecting plate
- flange
- tightening
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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
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- Mechanical Engineering (AREA)
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Abstract
The invention belongs to the field of flexible hydraulic torque resisting, and particularly relates to a hydraulic torque-resisting mechanism for fastening a flange nut of a secondary box of a gearbox of a truck. The hydraulic torque-resisting mechanism comprises an upper hydraulic cylinder, an upper connection plate, a connection seat, a servo fastening unit, a lower hydraulic cylinder and a clamping jaw, wherein the upper connection plate is mounted on a fastening machine, the upper hydraulic cylinder is arranged on the upper connection plate and has an output end thereof connected with the connection seat, the servo fastening unit and the lower hydraulic cylinder are mounted on the connection seat respectively and driven to ascend or descend together with the connected seat by the upper hydraulic cylinder, a fastening shaft of the servo fastening unit penetrates out the connection seat to fasten and pre-fasten the flange nut, an output end of the lower hydraulic cylinder penetrates out the connection seat and is connected with the clamping jaw which is driven to rotate by the lower hydraulic cylinder and tightly clamps the lower surface of an output shaft flange, and the upper surface of the output shaft flange is tightly pressed by the connection seat. The hydraulic torque-resisting mechanism is reliable in working performance, high in efficiency, damage-free for parts and capable of guaranteeing stability of output fastening torque in an automatic fastening process.
Description
Technical field
The invention belongs to the antitorque field of flexible hydraulic, specifically a kind of antitorque mechanism of hydraulic pressure for truck gear box sub-case flange flange nut screwing clamping.
Background technology
Truck gear box sub-case flange flange nut needs high pulling torque screw-down torque and pretightning force, and to guarantee the accurate gap of output shaft flange and auxiliary box body and the reliability that casing long time running, vibrations or overload are used, flange nut can not become flexible.Avoid odd-side bearing clearance excessive or too small, the ring flange easily causing loads phenomenon overheated or that skid.In order to ensure the service behaviour of flange nut, in the assembling process of gearbox, guarantee that its screw-down torque and pretightning force are very important.Traditional assembling adopts manual tightening, and the antitorque mode of rigidity, easily causes damage to casing, and the accuracy of screwing force is difficult to be guaranteed.
Summary of the invention
For solve manual tighten that flange nut exists cause damage and the screwing force accuracy cannot guaranteed problem to truck gear box, the object of the present invention is to provide the antitorque mechanism of a kind of hydraulic pressure.The antitorque mechanism of this hydraulic pressure can carry out effective pretension and tighten flange nut.
The object of the invention is to be achieved through the following technical solutions:
The present invention is arranged in tightening machine, is positioned at the top of truck speed change odd-side flange nut and output shaft flange; The antitorque mechanism of described hydraulic pressure comprises hydraulic cylinder, upper junction plate, Connection Block, servo unit, lower hydraulic cylinder and the jaw tightened, and wherein upper junction plate is arranged in tightening machine, and described upper hydraulic cylinder is arranged on this upper junction plate, output is connected with Connection Block; Describedly servoly tighten unit and lower hydraulic cylinder is arranged on respectively on Connection Block, and together with Connection Block by upper Driven by Hydraulic Cylinder lifting, the described servo axle of tightening of tightening in unit is passed by Connection Block, described flange nut is tightened and pretension, the output of described lower hydraulic cylinder is passed by Connection Block, and be connected with jaw, and this jaw is rotated, is clamped the lower surface of described output shaft flange by lower Driven by Hydraulic Cylinder, and the upper surface of output shaft flange is compressed by Connection Block.
Wherein: the bottom of described Connection Block is provided with friction plate, this friction plate, with Connection Block one lifting, compresses the upper surface of output shaft flange; Described Connection Block comprises middle connecting plate, middle transition flange and lower oil cylinder connecting plate, and wherein middle connecting plate is connected in the output of hydraulic cylinder, and one end of described middle transition flange is connected with middle connecting plate, and the other end is connected with lower oil cylinder connecting plate; The described servo cellular installation of tightening is on middle transition flange, and the servo lower end of tightening axle of tightening in unit is passed by described lower oil cylinder connecting plate; Described lower hydraulic cylinder is arranged on lower oil cylinder connecting plate, and the output of lower hydraulic cylinder is passed by lower oil cylinder connecting plate, is connected with jaw; Described lower hydraulic cylinder is two, is symmetricly set on servo both sides of tightening unit, and the output of each lower hydraulic cylinder is all connected with jaw; Between described upper junction plate and Connection Block, be provided with guider; Described guider comprises lead and fairlead, and wherein fairlead is arranged on upper junction plate, and one end of lead is arranged on Connection Block, and the other end inserts in described fairlead.
Advantage of the present invention and good effect are:
1. the present invention's reliable working performance in automatic tightening process, efficiency is high, and not injuring part guarantees that output screw-down torque is stable.
2. the friction plate of lower oil cylinder connecting plate lower surface of the present invention setting compresses the upper surface of output shaft flange in advance, both can increase and output shaft flange upper surface between frictional force, can guarantee again not damage output shaft flange.
3. jaw of the present invention clamps the lower surface of output shaft flange by lower Driven by Hydraulic Cylinder rotation, has increased the static pressure of friction plate and output shaft flange, thereby has increased the static friction between them.
4. in the present invention in the process of Driven by Hydraulic Cylinder lower part lifting, lead and fairlead can play guide effect.
Accompanying drawing explanation
Fig. 1 is overall structure front view of the present invention;
Fig. 2 is the top view of Fig. 1;
Wherein: 1 is upper hydraulic cylinder, 2 is lead, and 3 is fairlead, 4 is the servo unit of tightening, and 5 is middle transition flange, and 6 is lower hydraulic cylinder, 7 is lower oil-cylinder guide sleeve, and 8 is cylinder connector, and 9 is helicla flute guide pillar, 10 is upper junction plate, and 11 is middle connecting plate, and 12 is lower oil cylinder connecting plate, 13 is friction plate, 14 is flange nut, and 15 is jaw, and 16 is output shaft flange.
The specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1 and Figure 2, the present invention includes hydraulic cylinder 1, upper junction plate 10, Connection Block, servo unit 4, lower hydraulic cylinder 6 and the jaw 15 tightened, wherein Connection Block comprises middle connecting plate 11, middle transition flange 5 and lower oil cylinder connecting plate 12; Entirety of the present invention is fixed on the support of lathe bed after tightening machine by upper junction plate 10, and is positioned at the top of truck speed change odd-side flange nut 14 and output shaft flange 16.
Upper hydraulic cylinder 1 is fixed on upper junction plate 10, and output passes upper junction plate 10, is connected with middle connecting plate 11; One end (upper end) of middle transition flange 5 is affixed with middle connecting plate 11, and the other end (lower end) is affixed with lower oil cylinder connecting plate 12.The servo unit 4 of tightening is arranged on middle transition flange 5, and servo upper end of tightening unit 4 is successively through middle connecting plate 11, upper junction plate 10; The servo unit 4 of tightening comprises and tightens motor, reductor and tighten axle, and the lower end of tightening axle is passed by lower oil cylinder connecting plate 12, and flange nut 14 is tightened and pretension.Be provided with two lower hydraulic cylinders 6 in servo bilateral symmetry of tightening unit 4, these two lower hydraulic cylinders 6 are fixed on lower oil cylinder connecting plate 12 by lower oil-cylinder guide sleeve 7 respectively, and the output of two lower hydraulic cylinders 6 is passed by lower oil cylinder connecting plate 12 respectively, be connected with the both sides that 15, two jaws 15 of jaw lay respectively at flange nut 14 and output shaft flange 16.Middle connecting plate 11, middle transition flange 5, servo unit 4, lower hydraulic cylinder 6 and the lower oil cylinder connecting plate 12 tightened are driven by upper hydraulic cylinder 1, a lifting; Jaw 15 is driven the lower surface of rotation, clamping output shaft flange 16 by lower hydraulic cylinder 6.
Be fixed with friction plate 13 at the lower surface of lower oil cylinder connecting plate 12, this friction plate 13, with lower oil cylinder connecting plate 12 liftings, compresses the upper surface of output shaft flange 16 in advance.
Between upper junction plate 10 and middle connecting plate 11, be provided with guider, this guider comprises lead 2 and fairlead 3, wherein fairlead 3 is fixed on upper junction plate 10, one end of lead 2 is fixed on middle connecting plate 11, the other end inserts in fairlead 3, in the process that compresses output shaft flange 16, play the guiding role.
Workpiece principle of the present invention is:
Upper hydraulic cylinder 1 is worked, and drives middle connecting plate 11, middle transition flange 5, lower oil cylinder connecting plate 12 and servoly tightens unit 4 and lower hydraulic cylinder 6 declines, and after declining and putting in place, upper hydraulic cylinder 1 quits work, and friction plate 13 compresses the upper surface of output shaft flange 16 in advance; Then, two lower hydraulic cylinders 6 are worked, and drive respectively two jaws 15 to rotate, until two jaws 15 clamp the lower surface of output shaft flange 16, increase the static pressure between friction plate 13 and output shaft flange 16, thereby increase the static friction between them, antitorque action completes.Afterwards, tighten motor via reducer drive and tighten axle rotation, tighten axle and start flange nut 14 effectively to tighten and pretension.
Upper hydraulic cylinder 1 of the present invention is commercial product, purchases in Taiwan towards field hydraulic pressure company, and model is FA-B-50-R25-S260-140K; Lower hydraulic cylinder 6 is commercial product, purchases in Taiwan towards field hydraulic pressure company, and model is HSG-50-R25-E-4-1-1-1-50ST; The cylinder connector 8 of lower hydraulic cylinder 6 and helicla flute guide pillar 9 are all positioned at lower oil-cylinder guide sleeve 7, and the lower end of helicla flute guide pillar 9 is connected with jaw 15, drive jaw 15 to rotate.
Claims (6)
1. the antitorque mechanism of hydraulic pressure, is arranged in tightening machine, is positioned at the top of truck speed change odd-side flange nut and output shaft flange; It is characterized in that: the antitorque mechanism of described hydraulic pressure comprises hydraulic cylinder (1), upper junction plate (10), Connection Block, servo unit (4), lower hydraulic cylinder (6) and the jaw (15) tightened, wherein upper junction plate (10) is arranged in tightening machine, and described upper hydraulic cylinder (1) is arranged on this upper junction plate (10), output is connected with Connection Block; Describedly servoly tighten unit (4) and lower hydraulic cylinder (6) is arranged on respectively on Connection Block, and drive lifting by upper hydraulic cylinder (1) together with Connection Block, the described servo axle of tightening of tightening in unit (4) is passed by Connection Block, described flange nut (14) is tightened and pretension, the output of described lower hydraulic cylinder (6) is passed by Connection Block, and be connected with jaw (15), this jaw (15) is driven the lower surface that rotates, clamps described output shaft flange (16) by lower hydraulic cylinder (6), the upper surface of output shaft flange (16) is compressed by Connection Block.
2. by the antitorque mechanism of hydraulic pressure claimed in claim 1, it is characterized in that: the bottom of described Connection Block is provided with friction plate (13), this friction plate (13), with Connection Block one lifting, compresses the upper surface of output shaft flange (16).
3. by the antitorque mechanism of hydraulic pressure described in claim 1 or 2, it is characterized in that: described Connection Block comprises middle connecting plate (11), middle transition flange (5) and lower oil cylinder connecting plate (12), wherein middle connecting plate (11) is connected in the output of hydraulic cylinder (1), one end of described middle transition flange (5) is connected with middle connecting plate (11), and the other end is connected with lower oil cylinder connecting plate (12); The described servo unit (4) of tightening is arranged on middle transition flange (5) above, and the servo lower end of tightening axle of tightening in unit (4) is passed by described lower oil cylinder connecting plate (12); It is upper that described lower hydraulic cylinder (6) is arranged on lower oil cylinder connecting plate (12), and the output of lower hydraulic cylinder (6) is passed by lower oil cylinder connecting plate (12), is connected with jaw (15).
4. by the antitorque mechanism of hydraulic pressure claimed in claim 3, it is characterized in that: described lower hydraulic cylinder (6) is two, be symmetricly set on servo both sides of tightening unit (4), the output of each lower hydraulic cylinder (6) is all connected with jaw (15).
5. by the antitorque mechanism of hydraulic pressure described in claim 1 or 2, it is characterized in that: between described upper junction plate (10) and Connection Block, be provided with guider.
6. by the antitorque mechanism of hydraulic pressure claimed in claim 5, it is characterized in that: described guider comprises lead (2) and fairlead (3), wherein fairlead (3) is arranged on upper junction plate (10), one end of lead (2) is arranged on Connection Block, and the other end inserts in described fairlead (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210563278.0A CN103878573B (en) | 2012-12-21 | 2012-12-21 | Hydraulic pressure anti-torsion mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210563278.0A CN103878573B (en) | 2012-12-21 | 2012-12-21 | Hydraulic pressure anti-torsion mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103878573A true CN103878573A (en) | 2014-06-25 |
| CN103878573B CN103878573B (en) | 2016-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210563278.0A Expired - Fee Related CN103878573B (en) | 2012-12-21 | 2012-12-21 | Hydraulic pressure anti-torsion mechanism |
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| CN (1) | CN103878573B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0811063A (en) * | 1994-06-28 | 1996-01-16 | Hitachi Plant Eng & Constr Co Ltd | Flange bolt fastening method and fastening auxiliary device |
| JPH11129163A (en) * | 1997-10-29 | 1999-05-18 | Chuo Motor Wheel Co Ltd | Screw fastening method, screw fastening device, attachment, and recording medium |
| CN2728701Y (en) * | 2004-09-29 | 2005-09-28 | 天津市天锻压力机有限公司 | Hydraulic machine upright post nut assembling device |
| CN201009075Y (en) * | 2007-02-01 | 2008-01-23 | 中国南方工业汽车股份有限公司四川建安车桥分公司 | Main gear locknut screwing down machine |
| CN101745802A (en) * | 2008-12-10 | 2010-06-23 | 中国科学院沈阳自动化研究所 | Torque-control multishaft bolt tightening machine |
| CN201906976U (en) * | 2010-12-27 | 2011-07-27 | 齐齐哈尔二机床(集团)有限责任公司 | Movable tightening nut mounting device |
-
2012
- 2012-12-21 CN CN201210563278.0A patent/CN103878573B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0811063A (en) * | 1994-06-28 | 1996-01-16 | Hitachi Plant Eng & Constr Co Ltd | Flange bolt fastening method and fastening auxiliary device |
| JPH11129163A (en) * | 1997-10-29 | 1999-05-18 | Chuo Motor Wheel Co Ltd | Screw fastening method, screw fastening device, attachment, and recording medium |
| CN2728701Y (en) * | 2004-09-29 | 2005-09-28 | 天津市天锻压力机有限公司 | Hydraulic machine upright post nut assembling device |
| CN201009075Y (en) * | 2007-02-01 | 2008-01-23 | 中国南方工业汽车股份有限公司四川建安车桥分公司 | Main gear locknut screwing down machine |
| CN101745802A (en) * | 2008-12-10 | 2010-06-23 | 中国科学院沈阳自动化研究所 | Torque-control multishaft bolt tightening machine |
| CN201906976U (en) * | 2010-12-27 | 2011-07-27 | 齐齐哈尔二机床(集团)有限责任公司 | Movable tightening nut mounting device |
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| Publication number | Publication date |
|---|---|
| CN103878573B (en) | 2016-03-23 |
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Granted publication date: 20160323 Termination date: 20181221 |
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| CF01 | Termination of patent right due to non-payment of annual fee |