CN102913408A - Bent axis type plunger hydraulic pump/motor - Google Patents
Bent axis type plunger hydraulic pump/motor Download PDFInfo
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- CN102913408A CN102913408A CN2012104609151A CN201210460915A CN102913408A CN 102913408 A CN102913408 A CN 102913408A CN 2012104609151 A CN2012104609151 A CN 2012104609151A CN 201210460915 A CN201210460915 A CN 201210460915A CN 102913408 A CN102913408 A CN 102913408A
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- hydraulic pump
- bonnet
- plunger
- thrust plate
- motor
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Abstract
The invention discloses a bent axis type plunger hydraulic pump/motor. The bent axis type plunger hydraulic pump/motor comprises a casing, an end cover, a rear cover, a motor main shaft, a mandrel, a plunger component, a cylinder body and a valve plate, wherein the end cover and the rear cover are fixed at the front end of the casing and the rear end of the casing, the motor main shaft, the mandrel, the plunger component, the cylinder body and the valve plate are installed inside the casing, one end of the motor main shaft extends out of the end cover, a ball socket disk is arranged at the other end of the motor main shaft, one end of the mandrel and one end of the plunger component are arranged inside the ball socket disk respectively, the other end of the mandrel is arranged inside a mandrel hole at the center of the cylinder body, the other end of the plunger component is arranged inside a plunger hole of the cylinder body, the rear cover contacts with the valve plate, the rear cover is provided with an inner cavity, a driving mechanism which is connected with the valve plate is arranged inside the inner cavity, and the valve plate is driven by the driving mechanism to move along the contact surface of the rear cover. The valve plate is driven by the driving mechanism to move along the rear cover, so that the pouring amount angle of the valve plate is changed, and the output volume can be adjusted, that is, the larger the pouring amount angle is, the higher the output volume is.
Description
Technical field
The invention belongs to hydraulic pump/motor, especially relate to a kind of inclined plunger hydraulic pump/motor.
Background technique
Inclined plunger hydraulic pump/motor, be mainly used in the hydraulic driving of running mechanism, traditional inclined plunger hydraulic pump/motor mainly comprises housing, be fixed on end cap, the bonnet of housing front end, rear end, be installed on motor spindle, mandrel, plunger part, cylinder body and the thrust plate of enclosure interior; Wherein motor spindle one end stretches out end cap, and the other end is provided with the ball-and-socket dish, and mandrel, plunger part one end are located at respectively in the ball-and-socket dish, and the mandrel the other end links to each other with thrust plate, and plunger part one end is located in the cylinder body.Adopt the hydraulic pump/motor of said structure, have plunger part processing simply, reliable transmission, advantages such as can enhancing productivity and reduce the cost.But, be fixedly connected with because its thrust plate and bonnet are employings, thereby so that existing inclined plunger hydraulic pump/motor all can't realize its discharge capacity is carried out corresponding adjusting.
Summary of the invention
Technical problem to be solved by this invention provides a kind of inclined plunger hydraulic pump/motor, can realize its discharge capacity is regulated.
In order to solve the problems of the technologies described above, the present invention adopts following technological scheme:
A kind of inclined plunger hydraulic pump/motor, comprise housing, be fixed on the housing front end, the end cap of rear end, bonnet, be installed on the motor spindle of enclosure interior, mandrel, plunger part, cylinder body and thrust plate, motor spindle one end stretches out end cap, the other end is provided with the ball-and-socket dish, mandrel, plunger part one end is located at respectively in the ball-and-socket dish, the mandrel the other end is located in the core axle hole at cylinder body center, the plunger part the other end is located in the plunger hole of cylinder body, and described bonnet contacts with thrust plate, and bonnet has inner chamber, the driving mechanism that is connected with thrust plate in the inner chamber with ining addition, and move along the bonnet surface of contact by driving mechanism driving thrust plate.
The surface of contact of described bonnet and thrust plate is concave arc surface, and the corresponding contact face of thrust plate is the convex globoidal that is complementary.
Described driving mechanism comprises oil hydraulic cylinder, piston, piston rod, connecting pin, piston is separated into upper and lower two hydraulic pressure cavity with oil hydraulic cylinder, piston-rod end links to each other with piston, connecting pin one end is located in the bonnet, and link to each other with piston rod, thrust plate is provided with attachment hole, and the connecting pin the other end is arranged in attachment hole, and the bonnet bottom is provided with cylinder cap.
The compression area of described lower hydraulic pressure chamber is greater than the compression area of upper hydraulic pressure cavity.
The termination of being located in the attachment hole of described connecting pin is spheric structure.
The up and down two ends of described housing are respectively equipped with the discharge capacity limting mechanism.
Described discharge capacity limting mechanism comprises the tapped hole that is opened on the housing, is located at the caging bolt in the tapped hole, and an end of bolt stretches into enclosure interior, and extends on the concave arc surface of bonnet.
Adopt inclined plunger hydraulic pump/motor of the present invention, have following advantage:
1, drive thrust plate by driving mechanism and move along bonnet, changing its measuring angle that inclines, thereby realize the adjusting to discharge capacity, the angulation of namely inclining is larger, and discharge capacity is larger.
2, surface of contact is cambered surface, increases the regulation range of the measuring angle that inclines, simultaneously also so that the mobile adjusting of thrust plate is more smooth and easy.
3, the end that penetrates of connecting pin is spheric structure, can not interfered and limit, so that adjusting is more smooth and easy.
4, caging bolt is set, shift motion that can the regulation and control thrust plate, thereby maximum, the minimum injection rate of control hydraulic pump/motor.
Description of drawings
The present invention is elaborated below in conjunction with the drawings and specific embodiments:
Fig. 1 is structure sectional view of the present invention.
Fig. 2 is the right elevation among Fig. 1.
Embodiment
Inclined plunger hydraulic pump/motor of the present invention such as Fig. 1, shown in Figure 2, itself and prior art are basic identical, equally also comprise housing 1, be fixed on housing 1 front end, the end cap 2 of rear end, bonnet 3, be installed on the motor spindle 4 of housing 1 inside, mandrel 5, plunger part 6, cylinder body 7 and thrust plate 8, motor spindle 4 one ends stretch out end cap 2, the other end is provided with ball-and-socket dish 20, mandrel 5, plunger part 6 one ends are located at respectively in the ball-and-socket dish 20, mandrel 5 the other ends be located in the core axle hole at cylinder body 7 centers, plunger part 6 the other ends are located at the plunger hole of cylinder body 7, specifically repeat no more.Different is, described bonnet 3 is not fixedly connected with thrust plate 8, but contacts, and bonnet 3 has inner chamber, the driving mechanism that the bottom is connected with thrust plate 8 with ining addition in the inner chamber, and move along bonnet 3 surface of contact by driving mechanism driving thrust plate 8.Thereby can change its measuring angle that inclines, to realize the adjusting to its discharge capacity, the angulation of namely inclining is larger, and discharge capacity is larger.
Described bonnet 3 is concave arc surface with the surface of contact of thrust plate 8, and the corresponding contact face of thrust plate 8 is the convex globoidal that is complementary.Adopt the surface of contact of cambered surface form, thrust plate 8 is mobile at concave arc surface, can make larger that its angulation scope of inclining becomes, thereby effectively increase the incline regulation range of measuring angle of this plunger hydraulic pump/motor, simultaneously cambered surface contact is also so that thrust plate 8 mobile regulated more smooth and easy.
Described driving mechanism comprises oil hydraulic cylinder 9, piston 10, piston rod 11, connecting pin 12, piston 10 is separated into upper and lower two hydraulic pressure cavity 14,15 with oil hydraulic cylinder 9, piston rod 11 ends link to each other with piston 10, connecting pin 12 1 ends are located in the bonnet 3, and link to each other with piston rod 11, thrust plate 8 is provided with attachment hole 13, and connecting pin 12 the other ends are arranged in the attachment hole 13, bonnet 3 bottoms are provided with cylinder cap 19, and cylinder cap 19 is provided with the inlet opening 16 that communicates with lower hydraulic pressure chamber 15.By the driving of oil hydraulic cylinder 9, drive connecting pin 12 and move up and down, thus the movement of drive thrust plate 8.Certainly, can also use such as other driving mechanisms such as cylinder, mechanical type drivings, to realize drive actions.
And the compression area of above-mentioned lower hydraulic pressure chamber 15 is greater than the compression area of upper hydraulic pressure cavity 14.So, the control oiling valve so that hydraulic oil only enters hydraulic pressure cavity 14, and does not have hydraulic oil to enter in the lower hydraulic pressure chamber 15, hydraulic oil in the upper hydraulic pressure cavity 14 can pushing piston 10 and piston rod 11 move down, and drive connecting pin 12 and move down, thrust plate 8 is to lower swing.And when all having hydraulic oil to enter in the upper and lower hydraulic pressure cavity 14,15 because the compression area of lower hydraulic pressure chamber 15 is greater than the compression area of upper hydraulic pressure cavity 14, piston 10 and piston rod 11 can on move, and drive connecting pin 12 and move upward, thrust plate 8 upwards swings.Impact for avoiding the bottom upwards to put suddenly conversion, the inlet opening 16 that wherein communicates with lower hydraulic pressure chamber 15 is damping hole.
The end 17 that penetrates of connecting pin 12 is spheric structure, can not interfered and limit when moving up and down, so that adjusting is more smooth and easy.
The up and down two ends of housing 1 are respectively equipped with the discharge capacity limting mechanism.The discharge capacity limting mechanism comprises the tapped hole that is opened on the housing 1, is located at the caging bolt 18 in the tapped hole, and an end of bolt 18 stretches into housing 1 inside, and extends on the concave arc surface of bonnet 3.By regulating respectively the amount of stretching into of upper and lower spacing bolt 18, thus shift motion that can regulation and control thrust plate 8, thus maximum, the minimum injection rate of control hydraulic pump/motor.
But, those of ordinary skill in the art will be appreciated that, above embodiment illustrates the present invention, and be not to be used as limitation of the invention, as long as in connotation scope of the present invention, all will drop in claims scope of the present invention the above embodiment's variation, modification.
Claims (8)
1. inclined plunger hydraulic pump/motor, comprise housing, be fixed on end cap, the bonnet of housing front end, rear end, be installed on motor spindle, mandrel, plunger part, cylinder body and the thrust plate of enclosure interior, motor spindle one end stretches out end cap, and the other end is provided with the ball-and-socket dish, mandrel, plunger part one end are located at respectively in the ball-and-socket dish, the mandrel the other end is located in the core axle hole at cylinder body center, and the plunger part the other end is located in the plunger hole of cylinder body, it is characterized in that:
Described bonnet contacts with thrust plate, and bonnet has inner chamber, the driving mechanism that is connected with thrust plate in the inner chamber with ining addition, and move along the bonnet surface of contact by driving mechanism driving thrust plate.
2. inclined plunger hydraulic pump/motor according to claim 1 is characterized in that:
The surface of contact of described bonnet and thrust plate is concave arc surface, and the corresponding contact face of thrust plate is the convex globoidal that is complementary.
3. inclined plunger hydraulic pump/motor according to claim 1, it is characterized in that: described driving mechanism comprises oil hydraulic cylinder, piston, piston rod, connecting pin, piston is separated into upper and lower two hydraulic pressure cavity with oil hydraulic cylinder, piston-rod end links to each other with piston, connecting pin one end is located in the bonnet, and links to each other with piston rod, and thrust plate is provided with attachment hole, the connecting pin the other end is arranged in attachment hole, and the bonnet bottom is provided with cylinder cap.
4. inclined plunger hydraulic pump/motor according to claim 3, it is characterized in that: the compression area of described lower hydraulic pressure chamber is greater than the compression area of upper hydraulic pressure cavity.
5. inclined plunger hydraulic pump/motor according to claim 3 is characterized in that: the end that penetrates of described connecting pin is spheric structure.
6. inclined plunger hydraulic pump/motor according to claim 2, it is characterized in that: the up and down two ends of described housing are respectively equipped with the discharge capacity limting mechanism.
7. inclined plunger hydraulic pump/motor according to claim 6, it is characterized in that: described discharge capacity limting mechanism comprises the tapped hole that is opened on the housing, is located at the caging bolt in the tapped hole, one end of bolt stretches into enclosure interior, and extends on the concave arc surface of bonnet.
8. inclined plunger hydraulic pump/motor according to claim 3 is characterized in that: the inlet opening that described cylinder cap up and down sap cavity is communicated with is damping hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104609151A CN102913408A (en) | 2012-11-15 | 2012-11-15 | Bent axis type plunger hydraulic pump/motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104609151A CN102913408A (en) | 2012-11-15 | 2012-11-15 | Bent axis type plunger hydraulic pump/motor |
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| Publication Number | Publication Date |
|---|---|
| CN102913408A true CN102913408A (en) | 2013-02-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104609151A Pending CN102913408A (en) | 2012-11-15 | 2012-11-15 | Bent axis type plunger hydraulic pump/motor |
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| Country | Link |
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| CN (1) | CN102913408A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107701385A (en) * | 2017-09-07 | 2018-02-16 | 广州市华欣液压有限公司 | A kind of electric-hydraulic proportion formula plunger pump |
| CN109311377A (en) * | 2016-06-14 | 2019-02-05 | 珀金斯发动机有限公司 | Kinetic energy recovery system |
| CN109441707A (en) * | 2018-12-21 | 2019-03-08 | 上海电气液压气动有限公司 | From cooling piston motor |
| CN110043526A (en) * | 2019-04-26 | 2019-07-23 | 燕山大学 | A kind of Direct Action Type overflow motor and its hydraulic pressure circuit |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3961563A (en) * | 1973-03-19 | 1976-06-08 | Hydromatik Gmbh | Axial piston machine of the type having a tiltable cylinder block |
| US4007662A (en) * | 1975-01-17 | 1977-02-15 | Hydromatik Gmbh | Axial piston machine of oblique-axle construction with tiltable cylinder drum |
| US4466338A (en) * | 1981-06-26 | 1984-08-21 | Hydromatik Gmbh | Oblique-shaft axial piston machine having a follower plate for the cylinder drum |
| EP0728945A1 (en) * | 1995-02-23 | 1996-08-28 | Brueninghaus Hydromatik Gmbh | Axial piston machine |
| US6279452B1 (en) * | 1996-11-27 | 2001-08-28 | Brueninghaus Hydromatik Gmbh | Axial piston motor with bearing flushing |
| CN201007261Y (en) * | 2007-02-01 | 2008-01-16 | 北京华德液压工业集团有限责任公司技术中心 | Axial Variable displacement plunger pump |
| CN202991378U (en) * | 2012-11-15 | 2013-06-12 | 上海电气液压气动有限公司 | Inclined-shaft type plunger hydraulic pump/motor |
-
2012
- 2012-11-15 CN CN2012104609151A patent/CN102913408A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3961563A (en) * | 1973-03-19 | 1976-06-08 | Hydromatik Gmbh | Axial piston machine of the type having a tiltable cylinder block |
| US4007662A (en) * | 1975-01-17 | 1977-02-15 | Hydromatik Gmbh | Axial piston machine of oblique-axle construction with tiltable cylinder drum |
| US4466338A (en) * | 1981-06-26 | 1984-08-21 | Hydromatik Gmbh | Oblique-shaft axial piston machine having a follower plate for the cylinder drum |
| EP0728945A1 (en) * | 1995-02-23 | 1996-08-28 | Brueninghaus Hydromatik Gmbh | Axial piston machine |
| US6279452B1 (en) * | 1996-11-27 | 2001-08-28 | Brueninghaus Hydromatik Gmbh | Axial piston motor with bearing flushing |
| CN201007261Y (en) * | 2007-02-01 | 2008-01-16 | 北京华德液压工业集团有限责任公司技术中心 | Axial Variable displacement plunger pump |
| CN202991378U (en) * | 2012-11-15 | 2013-06-12 | 上海电气液压气动有限公司 | Inclined-shaft type plunger hydraulic pump/motor |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109311377A (en) * | 2016-06-14 | 2019-02-05 | 珀金斯发动机有限公司 | Kinetic energy recovery system |
| US11364796B2 (en) | 2016-06-14 | 2022-06-21 | Perkins Engines Company Limited | Kinetic energy recovery system |
| CN107701385A (en) * | 2017-09-07 | 2018-02-16 | 广州市华欣液压有限公司 | A kind of electric-hydraulic proportion formula plunger pump |
| CN109441707A (en) * | 2018-12-21 | 2019-03-08 | 上海电气液压气动有限公司 | From cooling piston motor |
| CN110043526A (en) * | 2019-04-26 | 2019-07-23 | 燕山大学 | A kind of Direct Action Type overflow motor and its hydraulic pressure circuit |
| CN110043526B (en) * | 2019-04-26 | 2020-03-10 | 燕山大学 | Direct-acting overflow motor and hydraulic source loop thereof |
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Application publication date: 20130206 |