CN103671620A - Hydraulic pump clutch for engineering machines - Google Patents
Hydraulic pump clutch for engineering machines Download PDFInfo
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- CN103671620A CN103671620A CN201310648296.3A CN201310648296A CN103671620A CN 103671620 A CN103671620 A CN 103671620A CN 201310648296 A CN201310648296 A CN 201310648296A CN 103671620 A CN103671620 A CN 103671620A
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- hydraulic pump
- oil hydraulic
- clutch
- input shaft
- piston
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Abstract
The invention relates to a hydraulic pump clutch for engineering machines, and belongs to the technical field of clutches. The hydraulic pump clutch for the engineering machines is characterized by comprising a shell, an input shaft, a switch solenoid valve, a piston and a gear sleeve, the shell is connected with a speed changer shell, the input shaft is connected with an output shaft of a power output port, the input shaft is provided with the piston, the switch solenoid valve fixedly connected to the shell is communicated and drives the piston through a control oil way, the piston moves to control the combination and separation of the input shaft and the gear sleeve, and the gear sleeve is used for connecting a hydraulic pump shaft. The hydraulic pump clutch has the advantages of being simple in structure, compact in assembling, high in adaptability, wide in application range, good in safety performance, high in operating efficiency and the like. During production, the oil liquid can be effectively prevented from being heated, the metamorphic speed of the oil liquid is reduced, the energy utilization ratio is improved, the service life and the maintaining period of a hydraulic pump, even the whole hydraulic system, can be greatly prolonged, and the hydraulic pump clutch for the engineering machines can be widely applied.
Description
Technical field
The invention belongs to Clutch Technology field, particularly relate to a kind of engineering machinery oil hydraulic pump clutch.
Background technique
At present, the aggravation of and scarcity of resources contradiction growing along with energy demand, high-power Construction Machinery Energy Saving reduces discharging mentions important agenda.In the time of raising source motivation, driving mechanism and actuator self efficiency, also in the unnecessary consumption of making every effort to reduce in energy transfer process.Engineering machinery oil hydraulic pump clutch, adapts to just this demand and arises at the historic moment.Engineering machinery or engineering vehicle are often for realizing specific function particular design, and actuator is completed by hydraulic system: working pump and a duplex pump (steering pump string variable speed pump) of being responsible for adjusting mouldboard position is installed on bulldozer; A duplex pump is installed on excavator, is responsible for walking and revolution, arm lifting, scraper bowl folding; A duplex pump (variable speed pump string working pump) and a steering pump are installed on loader; Two duplex pumps (variable speed pump string working pump and steering pump string brake pump) commonly on grader.For hydraulic system, use gap compared with for long engineering machinery, engineering vehicle, existing engineering machinery with oil hydraulic pump clutch when complete machine does not need hydraulic work system, effectively cutting-off liquid press pump power input, cannot make oil hydraulic pump stop operating, so not only cause fluid heating, fluid is rotten, reduce energy utilization rate, but also greatly reduce working life and the maintenance period of the even whole hydraulic system of oil hydraulic pump, and increased maintenance cost, reduced operation usefulness etc.
Summary of the invention
The present invention provides a kind of engineering machinery oil hydraulic pump clutch for solving the technical problem existing in known technology.
The object of this invention is to provide a kind of simple in structurely, assembling is compact, and strong adaptability is applied widely, and Safety performance is good and move the engineering machinery oil hydraulic pump clutch of usefulness high.
A kind of engineering machinery of the present invention not only can solve existing engineering machinery with oil hydraulic pump clutch, the unnecessary heating of hydraulic system of engineering vehicle fluid, the problems such as the rotten fast and energy utilization rate of fluid is low, but also can greatly improve working life and the maintenance period of the even whole hydraulic system of oil hydraulic pump.
Feature of the present invention: engineering machinery adopts housing to connect with case of transmission with oil hydraulic pump clutch, Clutch input shaft connects with variator power delivery outlet output shaft, the switch electromagnetic valve being fixed on housing is controlled the Engage and disengage of tooth cover and Clutch input shaft by oil circuit control break-make, tooth cover and hydraulic pump shaft splined, oil hydraulic pump is connected shell by bolt with pump and connects.
The present invention is all applicable to prime mover continuous firing under specific environment and lower engineering machinery, mining machinery or the petroleum machinery etc. of hydraulic system frequency of utilization.
Engineering machinery of the present invention by the technological scheme that oil hydraulic pump clutch is taked is:
A kind of engineering machinery oil hydraulic pump clutch, be characterized in: oil hydraulic pump clutch comprises housing, input shaft, switch electromagnetic valve, piston, tooth cover, housing connects with case of transmission, input shaft connects with power stage mouth output shaft, input shaft is provided with piston, be fixed in switch electromagnetic valve on housing by oil circuit control UNICOM driven plunger, piston moves the Engage and disengage of control inputs axle and tooth cover, and tooth cover is used for connecting hydraulic pump shaft.
Engineering machinery of the present invention can also adopt following technological scheme with oil hydraulic pump clutch:
Described engineering machinery oil hydraulic pump clutch, is characterized in: oil hydraulic pump clutch and power stage mouth output shaft are on same axis, and input shaft directly connects power stage mouth output shaft.
Described engineering machinery oil hydraulic pump clutch, is characterized in: oil hydraulic pump clutch is provided with pump connection shell, and pump connection shell is by Bolt Connection oil hydraulic pump.
Described engineering machinery oil hydraulic pump clutch, is characterized in: piston moves through the mode that compresses or unclamp steel disc and friction plate, the Engage and disengage of control inputs axle and tooth cover.
Described engineering machinery oil hydraulic pump clutch, is characterized in: piston is equipped with return spring, keeps steel disc and friction plate separated state during return spring return.
Course of action of the present invention: the certain fluid of pressure, through case of transmission, enters clutch housing, switch electromagnetic valve is controlled fluid break-make and is determined whether piston moves.Switch electromagnetic valve is opened, and fluid promotes piston action, and it is that input shaft and tooth cover fix as one that steel disc and friction plate compress, and clutch is in running order, and oil hydraulic pump rotates, hydraulic work system; Switch electromagnetic valve is closed, return spring action, and steel disc is separated with friction plate is that Clutch input shaft and tooth cover separate, Clutch input shaft idling conditions, oil hydraulic pump stall, hydraulic system is not worked.
Advantage and good effect that the present invention has are:
Engineering machinery with oil hydraulic pump clutch owing to having adopted the brand-new technological scheme of the present invention, compared with prior art, the present invention can be when complete machine need hydraulic work system, the effective cutting-off liquid press pump of break-make power by switch electromagnetic valve is inputted, make oil hydraulic pump in stop state, not only can effectively prevent like this fluid heating, slow down fluid rotten, improve energy utilization rate, but also can greatly improve working life and the maintenance period of the even whole hydraulic system of oil hydraulic pump.
The present invention has simple in structure, and assembling is compact, and strong adaptability is applied widely, and Safety performance is good and move usefulness advantages of higher.
Accompanying drawing explanation
Fig. 1 is oil hydraulic pump clutch configuration schematic diagram for engineering machinery of the present invention.
In figure, 1, case of transmission, 2, power stage mouth output shaft actuation gear, 3, power stage mouth output shaft, 4, Clutch input shaft, 5, housing, 6, switch electromagnetic valve, 7, piston, 8, steel disc, 9, friction plate, 10, return spring, 11, tooth cover, 12, pump connection shell, 13, oil hydraulic pump.
Embodiment
For further understanding summary of the invention of the present invention, Characteristic, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Consult accompanying drawing 1.
Embodiment 1
A kind of engineering machinery oil hydraulic pump clutch, comprise housing, input shaft, switch electromagnetic valve, piston, tooth cover, housing connects with case of transmission, and oil hydraulic pump clutch and power stage mouth output shaft are on same axis, and input shaft directly connects power stage mouth output shaft.Input shaft is provided with piston, is fixed in switch electromagnetic valve on housing by oil circuit control UNICOM driven plunger, and piston moves through the mode that compresses or unclamp steel disc and friction plate, the Engage and disengage of control inputs axle and tooth cover.Piston is equipped with return spring, keeps steel disc and friction plate separated state during return spring return.Tooth cover connects hydraulic pump shaft.Oil hydraulic pump clutch is provided with pump connection shell, and pump connection shell is by Bolt Connection oil hydraulic pump.
The concrete structure of the present embodiment and working procedure:
Engineering machinery mainly comprises Clutch input shaft 4, housing 5, switch electromagnetic valve 6, piston 7, steel disc 8, friction plate 9, return spring 10, tooth cover 11 and pump connection shell 12 etc. with oil hydraulic pump clutch.
Housing 5 and case of transmission 1 Bolt Connection, Clutch input shaft 4 and power stage mouth output shaft 3 splined, steel disc 8 and Clutch input shaft 4 splined, friction plate 9 overlaps 11 splined with tooth, tooth cover 11 and hydraulic pump shaft splined, oil hydraulic pump 13 connects with pump connection shell 12 by bolt.
As shown in Figure 1, the working principle of oil hydraulic pump clutch for engineering machinery:
In the time need to starting the hydraulic system of complete machine, (can be work, speed change, turn to, braking etc.), switch electromagnetic valve 6 is opened, the certain fluid of pressure enters clutch housing through switch electromagnetic valve, through certain oil circuit, finally enter in the cavity of Clutch input shaft 4 and piston 7, fluid promotes piston 7 actions, return spring 10 compressions, steel disc 8 and friction plate 9 fix as one under the compression of piston 7, be that Clutch input shaft 4 and tooth cover 12 fix as one, now clutch is in running order, oil hydraulic pump 13 rotating speeds are identical with power stage mouth output shaft 3 rotating speeds, hydraulic system is in running order.
When not needing hydraulic work system for a long time, closing switch solenoid valve 6, the oil-feed of blocking-up oil hydraulic pump clutch, cause Clutch input shaft 4 and the cavity internal pressure of piston 7 to reduce, at this moment compressed return spring 10 actions, steel disc 8 is separated with friction plate 9, Clutch input shaft 4 and tooth cover 12 are also separated state from affixed state-transition, now clutch is in separated state, and oil hydraulic pump 13 rotating speeds are zero, and oil hydraulic pump system is in operating condition not.
A kind of engineering machinery is the application on bulldozer with oil hydraulic pump clutch:
Engineering machinery is arranged between speed changer and working pump with oil hydraulic pump clutch, in order to control the input of working pump power.Because bulldozer hydraulic work device frequency of utilization is lower, completely can be again in conjunction with power when needs are used, start working pump and adjust the excavation angle of position, angle or the ridge buster of mouldboard, after adjustment, utilize locking loop to fix hydraulic jack, and then cut-out power, make working pump in off position.In the time need to adjusting next time again in conjunction with power.
The present embodiment has described simple in structure, and assembling is compact, and strong adaptability is applied widely, and Safety performance is good and move usefulness high, is engineering machinery hydraulic pump clutch that can wide popularization and application.
Claims (5)
1. an engineering machinery oil hydraulic pump clutch, it is characterized in that: oil hydraulic pump clutch comprises housing, input shaft, switch electromagnetic valve, piston, tooth cover, housing connects with case of transmission, input shaft connects with power stage mouth output shaft, input shaft is provided with piston, be fixed in switch electromagnetic valve on housing by oil circuit control UNICOM driven plunger, piston moves the Engage and disengage of control inputs axle and tooth cover, and tooth cover is used for connecting hydraulic pump shaft.
2. engineering machinery according to claim 1 oil hydraulic pump clutch, is characterized in that: oil hydraulic pump clutch and power stage mouth output shaft are on same axis, and input shaft directly connects power stage mouth output shaft.
3. engineering machinery according to claim 1 oil hydraulic pump clutch, is characterized in that: oil hydraulic pump clutch is provided with pump connection shell, and pump connection shell is by Bolt Connection oil hydraulic pump.
4. engineering machinery according to claim 1 oil hydraulic pump clutch, is characterized in that: piston moves through the mode that compresses or unclamp steel disc and friction plate, the Engage and disengage of control inputs axle and tooth cover.
5. according to the oil hydraulic pump clutch of the engineering machinery described in claim 1 or 4, it is characterized in that: piston is equipped with return spring, during return spring return, keep steel disc and friction plate separated state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310648296.3A CN103671620A (en) | 2013-12-03 | 2013-12-03 | Hydraulic pump clutch for engineering machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310648296.3A CN103671620A (en) | 2013-12-03 | 2013-12-03 | Hydraulic pump clutch for engineering machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103671620A true CN103671620A (en) | 2014-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310648296.3A Pending CN103671620A (en) | 2013-12-03 | 2013-12-03 | Hydraulic pump clutch for engineering machines |
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| CN (1) | CN103671620A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742618A (en) * | 2014-01-07 | 2014-04-23 | 天津工程机械研究院 | Hydraulic pump clutch for engineering machinery |
| CN109838548A (en) * | 2019-04-02 | 2019-06-04 | 江苏汇智高端工程机械创新中心有限公司 | Gearbox, clutch speed-changing mechanism and engineering machinery |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2228552Y (en) * | 1995-10-23 | 1996-06-05 | 宋秀峰 | Vehicle carried engine hydraulic starter |
| CN1479844A (en) * | 2001-01-18 | 2004-03-03 | Modulatable power transmission clutch and marine transmission | |
| CN200989397Y (en) * | 2006-09-21 | 2007-12-12 | 徐州工程机械科技股份有限公司 | Gearshifting clutch |
| CN201065897Y (en) * | 2007-07-31 | 2008-05-28 | 山推工程机械股份有限公司 | Hydraulic control main clutch for bulldozer |
| EP1998061A2 (en) * | 2007-05-29 | 2008-12-03 | Deere & Company | PTO Clutch |
| DE202009007262U1 (en) * | 2009-05-20 | 2009-10-01 | Walter Stauffenberg Gmbh & Co. Kg | Device for conveying a fluid in a hydraulic circuit |
| CN201884508U (en) * | 2010-12-02 | 2011-06-29 | 中国一拖集团有限公司 | Electric hydraulic control power output clutch |
| CN102390263A (en) * | 2011-09-30 | 2012-03-28 | 江苏大学 | Comprehensive recovery system of hydraulic car brake energy and hanger bracket vibration energy |
| CN202730833U (en) * | 2012-07-26 | 2013-02-13 | 梁富春 | Engaging and disengaging type loader variable-speed pump |
| CN103180521A (en) * | 2010-10-27 | 2013-06-26 | 洋马株式会社 | Power transmission device |
| CN103410883A (en) * | 2013-07-12 | 2013-11-27 | 永康市宏跃动力机械有限公司 | Handheld agricultural machine hydraulic clutch |
-
2013
- 2013-12-03 CN CN201310648296.3A patent/CN103671620A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2228552Y (en) * | 1995-10-23 | 1996-06-05 | 宋秀峰 | Vehicle carried engine hydraulic starter |
| CN1479844A (en) * | 2001-01-18 | 2004-03-03 | Modulatable power transmission clutch and marine transmission | |
| CN200989397Y (en) * | 2006-09-21 | 2007-12-12 | 徐州工程机械科技股份有限公司 | Gearshifting clutch |
| EP1998061A2 (en) * | 2007-05-29 | 2008-12-03 | Deere & Company | PTO Clutch |
| CN201065897Y (en) * | 2007-07-31 | 2008-05-28 | 山推工程机械股份有限公司 | Hydraulic control main clutch for bulldozer |
| DE202009007262U1 (en) * | 2009-05-20 | 2009-10-01 | Walter Stauffenberg Gmbh & Co. Kg | Device for conveying a fluid in a hydraulic circuit |
| CN103180521A (en) * | 2010-10-27 | 2013-06-26 | 洋马株式会社 | Power transmission device |
| CN201884508U (en) * | 2010-12-02 | 2011-06-29 | 中国一拖集团有限公司 | Electric hydraulic control power output clutch |
| CN102390263A (en) * | 2011-09-30 | 2012-03-28 | 江苏大学 | Comprehensive recovery system of hydraulic car brake energy and hanger bracket vibration energy |
| CN202730833U (en) * | 2012-07-26 | 2013-02-13 | 梁富春 | Engaging and disengaging type loader variable-speed pump |
| CN103410883A (en) * | 2013-07-12 | 2013-11-27 | 永康市宏跃动力机械有限公司 | Handheld agricultural machine hydraulic clutch |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742618A (en) * | 2014-01-07 | 2014-04-23 | 天津工程机械研究院 | Hydraulic pump clutch for engineering machinery |
| CN109838548A (en) * | 2019-04-02 | 2019-06-04 | 江苏汇智高端工程机械创新中心有限公司 | Gearbox, clutch speed-changing mechanism and engineering machinery |
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Application publication date: 20140326 |