CN1641217A - Axial plunger pump - Google Patents
Axial plunger pump Download PDFInfo
- Publication number
- CN1641217A CN1641217A CN 200410025864 CN200410025864A CN1641217A CN 1641217 A CN1641217 A CN 1641217A CN 200410025864 CN200410025864 CN 200410025864 CN 200410025864 A CN200410025864 A CN 200410025864A CN 1641217 A CN1641217 A CN 1641217A
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- China
- Prior art keywords
- pump
- cylinder body
- flow
- pintle
- stalk
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Reciprocating Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
This invention is a kind of axis direction pillar pump, its purpose is to comprehensive the main advantage of the axis direction pillar pump and the pump of pillar of radial, overcome each comfortable structure of main corrupt practice, a set of crosshead of left carry to spread with lord to move the stalk coupling, a set of crosshead slippery piece of right side carry to connect with the body, through the center slippery piece coupling with the main transmission, the flow axis drive be install in the pump body fixedly, open the oil enter and exit on the flow stalk, high low pressure flow slot and equilibrium slot of pressure, make the body of revolve urn suspend on the flow stalk. This invention makes the path size of the flow structure decreased consumedly, lowers the circumference speed of the pump of fill pillar significant, removing the exterior machine vibration to revolve the interference of the part to the pump, can carry out the balance of the dint to stalk body, kept the suspend state when body of urn moving, reduced abrasion, raised the service life.
Description
Technical field
The present invention relates to fluid varactor machine, particularly hydraulic transmission.
Background technique
The axial piston pump and the radial plunger pump of available technology adopting have many good qualities, but also all exist deficiency.The deficiency of axial piston pump is:
1) because transmission shaft directly is connected with cylinder body (rotor), the mechanical vibration that the outside is imported into can't be eliminated;
2) axial piston pump of employing dish flow, the pv allowable value of its thrust plate friction pair is subjected to certain limitation, and big discharge capacity, high pressure pump are difficult to realize.
The deficiency of radial plunger pump is:
1) radial dimension is bigger, should not use the occasion of radially size requirement strictness at some;
2) owing to the particularity of radial plunger pump structure, its rate of fault is higher.
The major advantage of comprehensive axial piston pump of purpose of the present invention and radial plunger pump overcomes above-mentioned structurally main disadvantage separately.
Summary of the invention
The present invention is a kind of axial piston pump, comprise main drive shaft (1), the pump housing (8), end cap (2), swash plate (3), cylinder body (6) is placed in the pump housing, place cylinder body and the overhanging crawler shoe plunger group (4) that is supported in swash plate (3), the left end of crosshead shoe group (5) connects with main drive shaft (1), the right-hand member master slider (5-2) of crosshead slipper group (5) is connected with cylinder body (6), connect with main drive shaft (1) by intermediate slider (5-1), pintle (7) is fixedly installed on the pump housing (8), pintle has oil inlet and outlet on (7), high low pressure flow groove and relief groove are suspended on the pintle (7) rotary cylinder-block (6).
Have in (I) position of cylinder body (6) right-hand member one with the parallel through hole of axis (OO ') of pintle (7), damper regulator (10) is housed in this through hole.
Beneficial effect of the present invention:
1) on axial piston pump, realized static balance axle flow;
2) radial dimension of distributing construction is reduced greatly, big amplitude has reduced the peripheral velocity of plunger pump, has improved the restriction of pv value to axial piston pump high pressure, big discharge capacity;
3) transmission shaft adopts crosshead shoe to be connected with cylinder body (rotor), has eliminated the interference of exterior mechanical vibration to the pump rotating part;
4) the pintle end face is provided with damper regulator, and interacts with cylinder body end face static balance groove, has realized the cylinder body balance of axial force;
5) realization of static balance axle flow and pintle balance of axial force make cylinder body often be in state of suspension at the volley, have reduced wearing and tearing, have improved working life.
Description of drawings
Fig. 1 is a scheme of erection of the present invention, Fig. 2 is the structural drawing of pintle and adjacent portion thereof, wherein Fig. 2 (a) is pintle (7) and cylinder body (6) erection drawing, Fig. 2 (b) is that the B-B of Fig. 2 (a) is to sectional view, Fig. 2 (c) is that the A-A of Fig. 2 (a) is to cutaway view Amplified image, Fig. 2 (d) is the partial enlarged drawing of 1 position among Fig. 2 (a), and Fig. 3 is the partial enlarged drawing at main drive shaft (1) and crosshead shoe group (5) position.
Embodiment
As shown in Figure 1, the present invention includes main drive shaft (1), the pump housing (8), end cap (2), pintle (7), swash plate (3), cylinder body (6), cylinder body (6) is installed in the pump housing (8), crawler shoe plunger group (4) places cylinder body (6) and the overhanging swash plate (3) that is supported in, crawler shoe plunger group (4) and the crosshead shoe group (5) of docking with main drive shaft (1) are formed rotatable parts jointly, and pintle (7) places in the cylinder body (6).Main drive shaft (1) drives crosshead shoe group (5) rotation under the driving of motor etc.
As Fig. 1, shown in Figure 3, the right-hand member master slider (5-2) of crosshead shoe group (5) is connected with cylinder body (6), and cylinder body (6) rotation also drives crawler shoe plunger group (4) rotation, and crawler shoe plunger group (4) is pressed on the swash plate (3) by card, each plunger is rotated a circle, in cylinder body, carry out fore and aft motion one time.
Shown in figure Fig. 1, Fig. 2 (a), pintle (7) is fixedly installed on the pump housing (8), pintle has oil inlet and outlet, high low pressure flow groove and relief groove on (7), and cylinder body (6) is suspended on the pintle (7), realizes the suction oil and the static balance of pump.
Shown in Fig. 2 (a), Fig. 2 (d), have in (I) position of cylinder body (6) right-hand member one with the parallel through hole of axis (OO ') of pintle (7), damper regulator (10) is housed in this through hole, interact with the static balance groove of cylinder body (6) right-hand member, realized cylinder body (6) balance of axial force.
Shown in Fig. 2 (b), in the right side of the pump housing (8), along the circumferential direction have two semicircular oil grooves, one is low pressure area (9-1), and another is zone of high pressure (9-2), and the right-hand member of cylinder body (6) rotates along these two oil grooves.
Shown in Fig. 2 (c), (7-1) inner flow passage of offering on pintle (7), paralleling to the axis (OO '), two are the oil suction runner, two other is the oil extraction runner.(7-2) be triangular groove, its effect is the sudden change that slows down pressure, eliminates entrap phenomenon, and plays the effect that reduces noise.(7-3) be the static balance groove.
As shown in Figure 3, between master slider (5-2), intermediate slider (5-1) and cylinder body (6), leave drain pan (11).
Claims (2)
1, a kind of axial piston pump, comprise main drive shaft (1), the pump housing (8), end cap (2), swash plate (3), cylinder body (6) is placed in the pump housing, place cylinder body and the overhanging crawler shoe plunger group (4) that is supported in swash plate (3), the left end that it is characterized in that crosshead shoe group (5) connects with main drive shaft (1), the right-hand member master slider (5-2) of crosshead slipper group (5) is connected with cylinder body (6), connect with main drive shaft (1) by intermediate slider (5-1), pintle (7) is fixedly installed on the pump housing (8), pintle has oil inlet and outlet on (7), high low pressure flow groove and relief groove are suspended on the pintle (7) rotary cylinder-block (6).
2, axial piston pump according to claim 1, it is characterized in that having in (1) position of cylinder body (6) right-hand member one with the parallel through hole of axis (OO ') of pintle (7), damper regulator (10) is housed in this through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100258645A CN100335778C (en) | 2004-01-12 | 2004-01-12 | Axial plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100258645A CN100335778C (en) | 2004-01-12 | 2004-01-12 | Axial plunger pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1641217A true CN1641217A (en) | 2005-07-20 |
| CN100335778C CN100335778C (en) | 2007-09-05 |
Family
ID=34868475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100258645A Expired - Fee Related CN100335778C (en) | 2004-01-12 | 2004-01-12 | Axial plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100335778C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102200107A (en) * | 2011-05-09 | 2011-09-28 | 兰州理工大学温州泵阀工程研究院 | Floating balanced-type disc flow distribution radial plunger pump |
| CN103062037A (en) * | 2013-01-18 | 2013-04-24 | 安高成 | Axial plunger pump |
| CN105181205A (en) * | 2015-09-09 | 2015-12-23 | 浙江大学 | High-pressure high-speed axial piston pump piston pair four-axis force testing device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0211869A (en) * | 1988-06-29 | 1990-01-16 | Honda Motor Co Ltd | Pressure regulator valve for variable displacement compressor |
| CN2221111Y (en) * | 1995-01-05 | 1996-02-28 | 韦炳文 | Valve flow-metering high pressure axial plunger pump |
| JP3668582B2 (en) * | 1997-02-06 | 2005-07-06 | カヤバ工業株式会社 | Axial piston pump |
| JP3681258B2 (en) * | 1997-06-13 | 2005-08-10 | カヤバ工業株式会社 | Variable displacement swash plate piston pump |
| JP2001090652A (en) * | 1999-09-27 | 2001-04-03 | Hitachi Constr Mach Co Ltd | Hydraulic rotary machine |
| CN2533326Y (en) * | 2002-04-16 | 2003-01-29 | 兖矿集团有限公司 | Cross slide coupling |
| CN2547896Y (en) * | 2002-05-21 | 2003-04-30 | 柳州市建筑机械总厂 | Oblique oxial plunger pump |
-
2004
- 2004-01-12 CN CNB2004100258645A patent/CN100335778C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102200107A (en) * | 2011-05-09 | 2011-09-28 | 兰州理工大学温州泵阀工程研究院 | Floating balanced-type disc flow distribution radial plunger pump |
| CN102200107B (en) * | 2011-05-09 | 2013-01-09 | 兰州理工大学温州泵阀工程研究院 | Floating balanced-type disc flow distribution radial plunger pump |
| CN103062037A (en) * | 2013-01-18 | 2013-04-24 | 安高成 | Axial plunger pump |
| CN105181205A (en) * | 2015-09-09 | 2015-12-23 | 浙江大学 | High-pressure high-speed axial piston pump piston pair four-axis force testing device |
| CN105181205B (en) * | 2015-09-09 | 2017-07-07 | 浙江大学 | A kind of axial force test device of high-voltage high-speed axial plunger pump plunger pair four |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100335778C (en) | 2007-09-05 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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 |