CN101581297A - Inclined plunger hydraulic pump/motor - Google Patents
Inclined plunger hydraulic pump/motor Download PDFInfo
- Publication number
- CN101581297A CN101581297A CNA2008100374771A CN200810037477A CN101581297A CN 101581297 A CN101581297 A CN 101581297A CN A2008100374771 A CNA2008100374771 A CN A2008100374771A CN 200810037477 A CN200810037477 A CN 200810037477A CN 101581297 A CN101581297 A CN 101581297A
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- Prior art keywords
- plunger
- connecting rod
- hydraulic pump
- motor
- ball head
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- Reciprocating Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The invention relates to an inclined plunger hydraulic pump/motor which comprises a casing, an end cover and a rear cover that are respectively fixed at the front end and the rear end of the casing, and a main shaft, a plunger part, a core shaft, a cylinder body and a port plate that are arranged in the casing, wherein the plunger part consists of a connecting bar and a plunger, the connecting bar consists of a big ball head, a small ball head and a joint level connecting the big ball head and the small ball head integrally, the plunger is provided with a plug hole, the bottom of the plug hole is provided with a ball socket, the small ball head of the connecting bar extends into the plug hole of the plunger to be matched with the ball socket in a hinge way, and the small ball head of the connecting bar only consists of a circular spherical surface. By adopting the structure, the inclined plunger hydraulic pump/motor has simple process of the plunger part and reliable drive and can improve the production efficiency and lower the cost.
Description
Technical field
The present invention relates to a kind of hydraulic pump/motor, relate in particular to a kind of inclined plunger hydraulic pump/motor.
Background technique
As shown in Figure 1, inclined plunger hydraulic pump/motor mainly comprises housing 100, is fixed on end cap 200, the bonnet 300 of housing front end, rear end, is installed in main shaft 400, plunger part 500, mandrel 600, cylinder body 700, the thrust plate 800 of housing 100 inside.Wherein plunger part 500 is core components of transmission campaign in the inclined plunger hydraulic pump/motor, and existing plunger part mainly is to be formed by connecting rod and the hinged roll extrusion of plunger.As shown in Figure 3 and Figure 4, the rounded end of existing plunger part 500 is that the bead head 11 of connecting rod 1 and the ball-and-socket 22 of plunger 2 consents 21 bottoms carry out hinged cooperation, and wherein the bead head 11 of connecting rod 1 is made up of two relative discontinuous concentric sphericals 12,13.Such structure deficiency is, the bead head 11 of connecting rod 1 is owing to be that two spheres constitute, must separate machined, and be difficult on the processing technology guarantee that two spheres are concentric.Because two spheres are most important to plunger part or even whole rod-plunger formula inclined plunger hydraulic pump/motor/motor with one heart, if two sphere decentraction, cooperate not tight between the little bulb that makes connecting rod easily and the ball-and-socket of plunger, in movement process, little bulb slides rough in ball-and-socket, make whole parts produce vibration, influence the quality of product.Therefore, present way is by the input that increases high precise equipment and constantly increases and improve processing technology and realize the concentric of two spheres, but makes so again that production efficient is lower and cost is higher.
Summary of the invention
It is simple that technical problem to be solved by this invention provides a kind of plunger part processing, reliable transmission, and the inclined plunger hydraulic pump/motor that can enhance productivity and reduce the cost is to overcome the deficiency that prior art exists.
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 comprises housing, is fixed on end cap, the bonnet of housing front end, rear end, is installed in main shaft, plunger part, mandrel, cylinder body, the thrust plate of enclosure interior; Wherein plunger part is made of connecting rod and plunger, described connecting rod is made of big bulb, little bulb and the connecting rod one that is connected large and small bulb, described plunger has consent, bottom at consent has ball-and-socket, the little bulb of described connecting rod stretches in the consent of plunger and cooperates with ball and socket, and it is characterized in that: the little bulb of described connecting rod only is made of a ball face.
Because little bulb only is made of a ball face, therefore need to keep two problems that sphere is concentric with regard to not existing, and the little bulb that ball face constitutes can form adding the man-hour time processing, simplified processing technology, do not need simultaneously high-precision process equipment yet, also can be so that the hobboing cutter shape obtains simplifying, operation easier when reducing with the plunger rolling finishing, equally also can be so that the ball-and-socket of bead head and plunger cooperates closely, guaranteed the smooth motion in ball-and-socket of little bulb, therefore, it is simple that inclined plunger hydraulic pump/motor of the present invention has plunger part processing, reliable transmission can be enhanced productivity and reduced the cost advantage.
Description of drawings
The present invention is described in detail below in conjunction with the drawings and specific embodiments:
Fig. 1 is the structural representation of existing inclined plunger hydraulic pump/motor;
Fig. 2 is the structural representation of existing plunger part;
Fig. 3 is the structural representation of existing connecting rod;
Fig. 4 is the structural representation of inclined plunger hydraulic pump/motor of the present invention;
Fig. 5 is the structural representation of plunger part of the present invention;
Fig. 6 is a bar linkage structure schematic representation of the present invention.
Among the figure:
100, housing 200, end cap 300, bonnet 400, main shaft
500, plunger part 600, mandrel 700, cylinder body 800, thrust plate
1, connecting rod 11, bead head 12,13, sphere 14, big bulb
15, connecting rod 16, ball face 2, plunger 21, consent
22, ball-and-socket
Embodiment
As shown in Figure 4, inclined plunger hydraulic pump/motor of the present invention is the improvement on the basis of inclined plunger hydraulic pump/motor shown in Figure 1, equally mainly comprise housing 100, be fixed on end cap 200, the bonnet 300 of housing front end, rear end, be installed in main shaft 400, plunger part 500, mandrel 600, cylinder body 700, the thrust plate 800 of housing 100 inside.The present invention mainly is the improvement to plunger part 500:
As shown in Figure 5 and Figure 6, plunger part 500 comprises connecting rod 1 and plunger 2, described connecting rod 1 is made of big bulb 14, bead head 11 and connecting rod 15 one that are connected large and small bulb 14,11, described plunger 2 has consent 21, have ball-and-socket 22 in the bottom of consent 21, the bead head 11 of connecting rod 1 stretches in the consent 21 of plunger 2 and 22 hinged cooperations of ball-and-socket.Wherein, the bead head 11 of connecting rod 1 only is made of a ball face 16, the sphere that is the bead head 11 of connecting rod 1 of the present invention is the continuous ball face that time processing forms, and is made of two relative discontinuous spheres unlike the bead head 11 of connecting rod 1 of the prior art.
Because bead head 11 only is made of a ball face 16, therefore need to keep two problems that sphere is concentric with regard to not existing, and the little bulb that ball face 16 constitutes can form adding the man-hour time processing, simplified processing technology, do not need simultaneously high-precision process equipment yet, also can be so that the hobboing cutter shape obtains simplifying, operation easier when reducing with the plunger rolling finishing, equally also can be so that the ball-and-socket of bead head and plunger cooperates closely, guaranteed the smooth motion in ball-and-socket of little bulb, therefore, it is simple that inclined plunger hydraulic pump/motor of the present invention has plunger part processing, reliable transmission can be enhanced productivity and reduced the cost advantage.
It more than is exactly inclined plunger hydraulic pump/motor of the present invention, but, those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating 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 on claim scope of the present invention to the above embodiment's variation, modification.
Claims (1)
1, a kind of inclined plunger hydraulic pump/motor comprises housing, is fixed on end cap, the bonnet of housing front end, rear end, is installed in main shaft, plunger part, mandrel, cylinder body, the thrust plate of enclosure interior; Wherein plunger part is made of connecting rod and plunger, described connecting rod is made of big bulb, little bulb and the connecting rod one that is connected large and small bulb, described plunger has consent, bottom at consent has ball-and-socket, the little bulb of described connecting rod stretches in the consent of plunger and cooperates with ball and socket, and it is characterized in that: the little bulb of described connecting rod only is made of a ball face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100374771A CN101581297A (en) | 2008-05-15 | 2008-05-15 | Inclined plunger hydraulic pump/motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100374771A CN101581297A (en) | 2008-05-15 | 2008-05-15 | Inclined plunger hydraulic pump/motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101581297A true CN101581297A (en) | 2009-11-18 |
Family
ID=41363585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100374771A Pending CN101581297A (en) | 2008-05-15 | 2008-05-15 | Inclined plunger hydraulic pump/motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101581297A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101881253A (en) * | 2010-05-31 | 2010-11-10 | 中航力源液压股份有限公司 | Cambered axle-type hydraulic variable motor |
| CN108194526A (en) * | 2018-03-19 | 2018-06-22 | 江苏可奈力机械制造有限公司 | A kind of novel main shaft connection structure |
| CN111022281A (en) * | 2019-12-26 | 2020-04-17 | 北京工业大学 | Sea water desalination high-pressure pump with few friction pairs and energy recovery integrated unit |
-
2008
- 2008-05-15 CN CNA2008100374771A patent/CN101581297A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101881253A (en) * | 2010-05-31 | 2010-11-10 | 中航力源液压股份有限公司 | Cambered axle-type hydraulic variable motor |
| CN101881253B (en) * | 2010-05-31 | 2012-07-04 | 中航力源液压股份有限公司 | Cambered axle-type hydraulic variable motor |
| CN108194526A (en) * | 2018-03-19 | 2018-06-22 | 江苏可奈力机械制造有限公司 | A kind of novel main shaft connection structure |
| CN111022281A (en) * | 2019-12-26 | 2020-04-17 | 北京工业大学 | Sea water desalination high-pressure pump with few friction pairs and energy recovery integrated unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20091118 |