CN2034894U - Hydraulic machinery wrench - Google Patents
Hydraulic machinery wrench Download PDFInfo
- Publication number
- CN2034894U CN2034894U CN 88202250 CN88202250U CN2034894U CN 2034894 U CN2034894 U CN 2034894U CN 88202250 CN88202250 CN 88202250 CN 88202250 U CN88202250 U CN 88202250U CN 2034894 U CN2034894 U CN 2034894U
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- CN
- China
- Prior art keywords
- thrust
- double
- hydraulic machine
- rear support
- hydraulic
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Abstract
The utility model provides an electric hydraulic mechanical wrench which is composed of a ring spanner (1), a hydraulic ram (2), a thrust frame (3), a back supporting frame (4), a hydraulic transmission control system, etc. The utility model is mainly used for the fastening or the dismounting of the screw bolts and the nuts with big specifications in the petrochemical equipment, the electric power facilities and the heavy machinery.
Description
The utility model belongs to the mechanical maintenance tool in use class, is mainly used in the main facilities dismounting of big specification nut and nut and fastening.
In the installation and maintenance process of some heavy mechanical equipments and facility (electric power facility, petrochemical equipment, heavy-duty machinery), usually need bolt or nuts fastening and the many big specifications of dismounting, majority is M30～M100, its pretightning force is approximately 60～2000 kilograms, such dismounting and fastening work is at present finished by manpower basically, fastening or dismantle a bolt or nut and often need number people or tens people to spend the time of several days even tens days, labour intensity is big, inefficiency.
Task of the present utility model is: a kind of hydraulic machine wrench fastening and big specification nut of dismounting and nut that is used for is provided, to improve working conditions, increases work efficiency.
The method of solution task is: double off-set spanners (1), double-act-ing hydraulic J-Horner (2), thrust frame (3), rear support stand (4), oil pump (5), proportional pressure control valve (6), pressure regulator valve (7), reversal valve (8) are arranged in the hydraulic machine wrench; One end of oil cylinder (2) and double off-set spanners (1) link, the other end and thrust frame (3) link, thrust frame (3) is hinged on the rear support stand (4) by bearing pin (12), and the line (17) between the longitudinal centre line (14) of the longitudinal centre line of thrust frame (13), rear support stand and its fixing hole (15), (16) center forms triangle; The advancing of oil cylinder (2), oil return line communicate with reversal valve (8), and proportional pressure control valve (6) and pressure regulator valve (7) lead on the oil circuit of reversal valve (8) at oil pump (5); The double off-set spanners afterbody has the thrust plate (9) of two symmetries, and several thrust gap (10) are arranged on the thrust plate; The bearing pin (11) of double-act-ing hydraulic J-Horner (2) piston rod is stuck in the thrust gap (10), and base links on thrust frame (3); On thrust frame (3) and the rear support stand (4) several adjustment holes (18), (19) are arranged.
Use hydraulic machine wrench described in the utility model, only need the one man operation just can be fastening and various big specification hexagon-headed bolts of dismounting and hex nut, alleviated manual labor, improved working condition, can improve tens of times of work efficiency even hundreds of times, and in the process of fastening bolt or nut, can adjust proportional pressure control valve (7) in the hydraulic system according to the fastening force that allows, change the thrust or the pulling force of oil cylinder, too tight or too loose phenomenon when avoiding manpower fastening.
Fig. 1 is the structure chart of hydraulic machine wrench described in the utility model.
Fig. 2 is the hydraulic system principle figure of hydraulic machine wrench described in the utility model.
Fig. 3 is the rotation of A-A line among Fig. 1 (promptly along) view of expression double off-set spanners afterbody thrust plate (9).
Fig. 1, Fig. 2 and hydraulic machine wrench described in the utility model shown in Figure 3, during use the fixing hole (16) of fixing hole of thrust frame (3) (15) and rear support stand (4) is enclosed near any two bolts (21) of bolt (20) that needs are fastening or dismantle respectively, (22) on, double off-set spanners is enclosed within on the bolt (20) that needs fastening or dismounting, the hydraulic oil that pumps from oil pump (5) lining enters double-act-ing hydraulic J-Horner (2) through reversal valve (8), piston rod is flexible, bearing pin (11) drives double off-set spanners around the rotation of the center of bolt (20), the operator adjusts the relative position of double off-set spanners and piston rod again and makes piston rod flexible then, nut up to the needs dismounting loses pretightning force fully, needs fastening nut to meet the requirements of till the pretightning force.
The effect of proportional pressure control valve (6) is an operating pressure of adjusting hydraulic system, thereby can change the thrust of oil cylinder (2) and the size of pulling force, in order to avoid the tension that nut is revolved.Pressure regulator valve (7) also can play the effect of Adjustment System operating pressure, but main effect is the fluid of emitting after quitting work in oil cylinder, guiding valve and the petroleum pipeline.
Gap (10) is used for adjusting the relative position and the angle of double off-set spanners and piston.In order to be beneficial to piston stroke and to produce bigger moment, except that the position that changes double off-set spanners (1), also can realize by the method that bearing pin is stuck in the different thrust gap (10) to nut (20).
When the position of the nut (21) of fixedly thrust frame (3) and rear support stand (4), (22) changes, can pass through bearing pin (12), adjustment hole (18), (19), adjust the angle between thrust frame (3) and the rear support stand (4), guarantee leg-of-mutton stability.
Claims (4)
1, hydraulic machine spanner, it is characterized in that: double offset ring spanner (1), double-act-ing hydraulic J-Horner (2), thrust frame (3), rear support stand (4), oil pump (5), proportional pressure control valve (6), pressure regulator valve (7), reversal valve (8) are arranged, one end of oil cylinder (2) and double offset ring spanner (1) link, the other end and thrust frame (3) link, on rear support stand (4), the line (17) between its longitudinal centre line (13), (14) and its fixing hole (15), (16) center forms triangle to thrust frame (3) by bearing pin (12) hinge joint; The advancing of oil cylinder (2), oil return line communicate with reversal valve (8), and proportional pressure control valve (6) and pressure regulator valve (7) lead on the oil circuit of reversal valve (8) at oil pump (5).
2, according to claim 1 described hydraulic machine wrench, it is characterized in that: double off-set spanners (1) afterbody has on the thrust plate (9), thrust plate of two symmetries several thrust gap (10) is arranged.
3, according to claim 1,2 described hydraulic machine wrench, it is characterized in that: the bearing pin (11) on double-act-ing hydraulic J-Horner (2) piston rod is stuck in the gap (10) on the double off-set spanners thrust plate, and base links on thrust frame (3).
4, hydraulic machine wrench according to claim 1 is characterized in that: on thrust frame (3) and the rear support stand (4) several adjustment holes (18), (19) are arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88202250 CN2034894U (en) | 1988-03-24 | 1988-03-24 | Hydraulic machinery wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88202250 CN2034894U (en) | 1988-03-24 | 1988-03-24 | Hydraulic machinery wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2034894U true CN2034894U (en) | 1989-03-29 |
Family
ID=4837284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88202250 Withdrawn CN2034894U (en) | 1988-03-24 | 1988-03-24 | Hydraulic machinery wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2034894U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102501211A (en) * | 2011-11-03 | 2012-06-20 | 重庆鼎运机电有限公司 | Hydraulic spanner |
| CN106438592A (en) * | 2016-09-07 | 2017-02-22 | 许继集团有限公司 | Hydraulic tightening device and control system thereof |
| CN107630807A (en) * | 2017-05-09 | 2018-01-26 | 东营市鑫聚合石油科技有限责任公司 | Beam pumping unit hydro-cushion adjuster and application method |
-
1988
- 1988-03-24 CN CN 88202250 patent/CN2034894U/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102501211A (en) * | 2011-11-03 | 2012-06-20 | 重庆鼎运机电有限公司 | Hydraulic spanner |
| CN106438592A (en) * | 2016-09-07 | 2017-02-22 | 许继集团有限公司 | Hydraulic tightening device and control system thereof |
| CN106438592B (en) * | 2016-09-07 | 2018-11-02 | 许继集团有限公司 | A kind of control system of hydraulic fastener and hydraulic fastener |
| CN107630807A (en) * | 2017-05-09 | 2018-01-26 | 东营市鑫聚合石油科技有限责任公司 | Beam pumping unit hydro-cushion adjuster and application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |