CN204961256U - Variable adjusting device of two valve plate axial plunger pump and motor - Google Patents
Variable adjusting device of two valve plate axial plunger pump and motor Download PDFInfo
- Publication number
- CN204961256U CN204961256U CN201520622491.3U CN201520622491U CN204961256U CN 204961256 U CN204961256 U CN 204961256U CN 201520622491 U CN201520622491 U CN 201520622491U CN 204961256 U CN204961256 U CN 204961256U
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- thrust plate
- motor
- variable
- valve plate
- axial plunger
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Abstract
The utility model relates to a variable adjusting device of two valve plate axial plunger pump and motor. Belong to hydraulic pressure components and parts technical field. To " curved surface raceway sloping cam plate axial plunger pump and motor ", utilize to adjust the relative position who joins in marriage the symmetry axis of class gain of both ends valve plate, for the skew angle of the diad on axial plunger reciprocating motion's summit, realize the quantitative governing with the symmetry axis of class gain of joining in marriage of adjusting the valve plate. Based on the constitutional features of two valve plate axial plunger pump and motor, improve the configuration of valve plate, make it can with the controlled regulation of being convenient for to reach from constant delivery pump and motor and improve to variable pump and motor, improve its product technology performance and the purpose of extending the application.
Description
Technical field:
The utility model relates to the variable controlling device of a kind of pair of thrust plate axial piston pump and motor.Belong to hydraulic component technical field, axial piston pump and motor be a kind of application widely, very important hydraulic machinery, its variable controlling device concerns technical performance raising, application is widened and energy-conserving and environment-protective, in hydraulic system components and parts, the important feature composition of axial piston pump and motor.
Background technique:
In prior art, oil hydraulic pump and motor can be divided into metering pump and motor and variable displacement pump and motor, variable displacement pump is different from metering pump according to the rate request regulation output flow of load and can require regulation output pressure according to load at it, variable displacement motor then adjustable discharge capacity with the speed of satisfied output, torque demand.For cam-type axial piston pump and motor, the major way that in prior art, it realizes variable is the angle of inclination regulating swash plate, add peripheral control system thus realize manual variable, hydraulic control variable, manual servo-actuated variable, electronic servo-actuated variable, setting up constant voltage, constant current, invariable power etc. automatic system.But the angle of inclination regulating swash plate is a kind of method to realize variable, it should not be unique the best.And when swash plate is changed to other form, during unadjustable tilt angle, the variable that the controlled plant of Ying Youxin and mode complete pump and motor regulates, and makes it to become the excellent variable displacement pump of technical qualities and motor.
There is application for a patent for invention " a kind of curved surface raceway sloping tray axial plunger piston pump and motor " before this, application number (201510295059.2), namely be two thrust plate axial piston pump and motor, its swash plate is changed to two-way curved surface raceway, and workpiece be dual action axial to plunger case, two thrust plate in order to from two ends to dual action axial to plunger case flow, because curved surface raceway is immutable, namely dual action axial is definite value to the stroke of plunger case, and therefore he is obviously a kind of metering pump and motor.The object regulated for reaching variable can only have been come by two thrust plate.
Exist a kind of " symmetric deflection formula thrust plate " in prior art, when thrust plate is installed to the pump housing, its working position is: the symmetry axis of the flow gain of thrust plate offsets an angle relative to the axis of symmetry on the reciprocating summit of axial plunger, and its effect is the working condition of handoff procedure for improving oil suction, oil extraction.The position when deflection that it should be noted that here is assembling, the configuration structure of thrust plate makes its position arbitrarily regulate.
Model utility content:
For " curved surface raceway sloping tray axial plunger piston pump and motor ", utilize the relative position of the symmetry axis of the flow gain regulating two ends thrust plate; With regulate the symmetry axis of flow gain of thrust plate relative to the deviation angle of the axis of symmetry on the reciprocating summit of axial plunger, realize variable and regulate.Based on the structure characteristic of two thrust plate axial piston pump and motor, the configuration of thrust plate is improved, make it can be convenient to controlled adjustment, thus reach and be improved to variable displacement pump and motor from metering pump and motor, improve the object in its product technology performance and expansive approach field.
The variable controlling device of a kind of pair of thrust plate axial piston pump and motor, be made up of novel thrust plate and adjustment driving mechanism, it is characterized in that: described its excircle of thrust plate 3 has two circular grooves 5, Sealing 6 is all had to separate and seal with outer rim between two circular grooves, described circular groove 5 is made to carry out rotating and during small axial translation, remaining the flow gain 15 be communicated with respectively on described thrust plate 3 at described thrust plate 3, 16 and external hydraulic connecting tubes 4, its excircle of described thrust plate 3 matches with external casing 7 as rotation location and axial slip location simultaneously, described thrust plate 3 has the variable adjusting gear 2 coaxial with its excircle, described adjustment driving mechanism can be hand screw mechanism, actuating motor worm mechanism and the rackwork driving oil hydraulic cylinder 13 to promote, engage with described variable adjusting gear 2 respectively, and reach the described thrust plate 3 of rotation, adjust its spatial position, and then realize the object of variable adjustment.
The variable controlling device of two thrust plate axial piston pump and motor, the adjustable thrust plate that can be made up of an aforementioned novel thrust plate and driving mechanism and common (can not rotate so that change the symmetry axis 14 of flow gain 15,16, the deviation angle relative to the axis of symmetry 21 on the reciprocating summit of axial plunger) the thrust plate composition not with regulating driving mechanism; Also can be made up of two aforementioned novel thrust plates and two cover driving mechanisms, two ends regulate at the same time or separately jointly, to reach better effect.
Accompanying drawing illustrates:
Fig. 1 is structure and the erection drawing of thrust plate.
Fig. 2 is the A-A view of Fig. 1.
Fig. 3 is that two thrust plate variable regulates schematic diagram.
Wherein:
1. are end caps 2. are variable adjusting gears 3. are thrust plate E4. are hydraulic pressure adapters
5. are circular grooves 6. are Sealings 7. are shells 8. are assembled hydraulic cylinder bodies
9. are axles 10. are plungers 11. are springs 12. are bearings 13. be drive oil hydraulic cylinder
14. are axis of symmetry 15. of the flow gain of thrust plate E is flow gain a
16. are flow gain b17. are flow gain c18. is flow gain d
19. is thrust plate F20. is axis of symmetry of the flow gain of thrust plate F
21. is the axis of symmetry on the reciprocating summit of axial plunger
O
1, O
2access the pressure duct in hydraulic system and oil sump tank respectively.
Embodiment:
Fig. 3 is that two thrust plate variable regulates schematic diagram, states embodiment below in conjunction with Fig. 3.O
1, O
2access the pressure duct in hydraulic system and oil sump tank respectively.Setting O
1pressure duct, O in access hydraulic system
2take back the fuel tank in hydraulic system, namely flow gain b16 and flow gain d18 provides high pressure oil to the oil hydraulic cylinder of corresponding position with it, the oil hydraulic cylinder of corresponding position with it is then connected to fuel tank by flow gain a15 and flow gain c17, the axis of symmetry 21 on the reciprocating summit of axial plunger sets to state clearer, is actually the projection of line on sagittal plane between " curved surface raceway sloping tray axial plunger piston pump and motor " limit dead point, mean camber raceway two ends.The axis of symmetry 14,20,21 should at same plane under normal circumstances, also be the state of pump and motor peak output: each double-acting hydraulic plunger cylinder every in a flash, each position (except being in the axis of symmetry 14, the position of 20 two) be that a terminated high voltage the other end takes back fuel tank, namely all in running order.This state of change is all made power reduction by the rotation of arbitrary thrust plate, and that is variable regulates is between maximum, regulate (chat in order to simplifying to state, load condition, negative work are not discussed) at power 0.
In Fig. 3, thrust plate E3 relative symmetry axis 21 is deflection one angle clockwise
namely the axis of symmetry 14 deflects, and also namely flow gain a15, flow gain b16 change spatial position, and thrust plate F keeps original position constant, now runs to
the two ends of the double-acting hydraulic plunger cylinder in corresponding region are communicated with flow gain b16 and flow gain d18 respectively, are equivalent to communicating together and access pressure duct, therefore not work done in this region.Exist simultaneously
vertical angles region in the two ends of double-acting hydraulic plunger cylinder be communicated with flow gain a15 and flow gain c17 respectively, be also communicating together and take back fuel tank, also not work done in this region.Now, will discharge capacity be reduced as pump, will the output of moment of torsion be reduced as motor.Because the symmetry properties of its structure is known: if make the axis of symmetry 14 deflect counterclockwise from the axis of symmetry 21 corresponding position, effect is completely equivalent.
If deflect an angle clockwise at thrust plate E3
while, also make thrust plate F deflect an angle counterclockwise, then the effect reached is identical and superposition.If two thrust plates deflect same angle to a direction from the axis of symmetry 21 corresponding position simultaneously, then can not produce aforementioned not work done region, but the axis of symmetry 14,20 of thrust plate deviate from the axis of symmetry 21, then the positive and negative decrement offseted of generating portion in the internal operation of pump and motor, also can reach the effect of variable.
Claims (1)
1. the variable controlling device of a two thrust plate axial piston pump and motor, be made up of thrust plate and adjustment driving mechanism, it is characterized in that: described thrust plate (3) its excircle has two circular grooves (5), with outer rim between two circular grooves, Sealing (6) is all had to separate and sealing, described circular groove (5) is made to carry out rotating and during small axial translation, remaining the flow gain (15) be communicated with respectively on described thrust plate (3) at described thrust plate (3), (16) and external hydraulic adapter (4), its excircle of described thrust plate (3) matches with shell (7) as rotation location and axial slip location simultaneously, described thrust plate (3) has the variable adjusting gear (2) coaxial with its excircle, described adjustment driving mechanism can be hand screw mechanism, actuating motor worm mechanism and the rackwork driving oil hydraulic cylinder (13) to promote, engage with described variable adjusting gear (2) respectively, and reach the described thrust plate of rotation (3), adjust its spatial position, and then realize the object of variable adjustment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520622491.3U CN204961256U (en) | 2015-08-18 | 2015-08-18 | Variable adjusting device of two valve plate axial plunger pump and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520622491.3U CN204961256U (en) | 2015-08-18 | 2015-08-18 | Variable adjusting device of two valve plate axial plunger pump and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204961256U true CN204961256U (en) | 2016-01-13 |
Family
ID=55056327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520622491.3U Expired - Fee Related CN204961256U (en) | 2015-08-18 | 2015-08-18 | Variable adjusting device of two valve plate axial plunger pump and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204961256U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179333A (en) * | 2015-09-16 | 2015-12-23 | 郭仁发 | Hydraulic transformer |
| CN113586437A (en) * | 2021-08-20 | 2021-11-02 | 宁波开发区安德鲁精铸有限公司 | Oil pump isolation plate and machining process thereof |
-
2015
- 2015-08-18 CN CN201520622491.3U patent/CN204961256U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179333A (en) * | 2015-09-16 | 2015-12-23 | 郭仁发 | Hydraulic transformer |
| CN113586437A (en) * | 2021-08-20 | 2021-11-02 | 宁波开发区安德鲁精铸有限公司 | Oil pump isolation plate and machining process thereof |
| CN113586437B (en) * | 2021-08-20 | 2023-01-10 | 宁波开发区安德鲁精铸有限公司 | Oil pump isolation plate and machining process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20160818 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |