CN102606476B - Method for improving working stability of vane type hydraulic oil pump - Google Patents
Method for improving working stability of vane type hydraulic oil pump Download PDFInfo
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- CN102606476B CN102606476B CN201210097343.5A CN201210097343A CN102606476B CN 102606476 B CN102606476 B CN 102606476B CN 201210097343 A CN201210097343 A CN 201210097343A CN 102606476 B CN102606476 B CN 102606476B
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- oil pump
- hydraulic oil
- thrust plate
- vane hydraulic
- hole
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Abstract
The objective of the invention is to provide a method for improving the working stability of a vane type hydraulic oil pump. The method is characterized in that gaps between a through hole on a port plate of the vane type hydraulic oil pump and a locating pin are increased; the single-side gap between the through hole on the port plate of the pump and the locating pin is 0.225-0.184mm; and the single-side gap between one end of the locating pin and the through hole of the port plate of the pump is 0.350-0.368mm. The vane type hydraulic oil pump improved by the method can ensure smooth axial movement of the port plate and the stability of the vane type hydraulic oil pump during running.
Description
Technical field
The present invention relates to a kind of hydraulic-pressure pump technical reformation method, particularly relate to a kind of raising vane hydraulic operation of oil pump stability approach.
Background technique
Hydraulic-pressure pump is a kind of energy conversion device mechanical energy that motor exports being converted to hydraulic energy, as the hydraulic energy source providing certain flow pressure in hydraulic system.Hydraulic-pressure pump is divided into gear-type hydraulic oil pump, vane hydraulic oil pump and plunger hydraulic oil pump from structure.
Vane hydraulic oil pump is made up of pump case, pump end cap, stator, rotor, blade, thrust plate etc., thrust plate is positioned at rotor both sides, in order to make to have gap to make rotor turns freely between thrust plate and rotor, there is again good sealing simultaneously, be designed with axial clearance compensation structure between thrust plate and rotor, namely have kickboard in thrust plate arranged outside.Only have to make thrust plate, stator and kickboard and move axially, thrust plate, stator and kickboard have through hole, with the through hole of locating stud through thrust plate, stator and kickboard, make thrust plate and kickboard move axially and can not rotate, compensate the gap between rotor and oil distribution casing.
In vane hydraulic operation of oil pump process, owing to being designed with axial clearance compensation structure between thrust plate and rotor, when between thrust plate and rotor axle head (or blade side), pressure is excessive, thrust plate can move apart rotor axle head (or blade side) automatically, make thrust plate be unlikely to be worn because pressure is excessive or pull.
Smooth and easy in order to ensure that thrust plate moves axially, the one side design gaps of the through hole on vane hydraulic oil pump thrust plate and locating stud is pressed to be 0.100mm ~ 0.143mm in the heavy single duplex of IHI company of Japan, this Spielpassung should be that wide arc gap coordinates in theory, but, due to rotor, blade and the accumulation of thrust plate manufacturing tolerance, this gap of the through hole on thrust plate and locating stud still can not ensure the smooth and easy movement of the axis of thrust plate in working procedure, the rotating shaft of rotor driven motion is by force unbalance, make thrust plate pressure excessive and be worn or pull, wearing and tearing or the thrust plate pulled just must be changed or repair, its end face once refines by the reparation of thrust plate exactly again, the reparation of oil distribution casing can make the gap between oil distribution casing and rotor axle head (or blade side) become large, the working pressure of vane hydraulic oil pump and efficiency will reduce, reduce vane hydraulic oil pump performance, what have even scraps.
Summary of the invention
The object of this invention is to provide a kind of raising vane hydraulic operation of oil pump stability approach, the vane hydraulic oil pump that the method is improved can ensure the smooth and easy movement of the axis of thrust plate in working procedure, and vane hydraulic oil pump performance is stablized.
In order to achieve the above object, raising vane hydraulic operation of oil pump stability approach of the present invention, it is characterized in that: the gap increasing through hole between vane hydraulic oil pump locating stud and counterpart, described counterpart comprises housing, thrust plate, stator and/or kickboard, or comprises housing, thrust plate and stator.Because increase the gap of through hole between vane hydraulic oil pump locating stud and counterpart, both rotor, blade and thrust plate had been made to have manufacturing tolerance to accumulate, still can ensure that moving axially of thrust plate in working procedure is smooth and easy, pressure between rotor and thrust plate would not be made excessive and oil distribution casing is worn or pulls, vane hydraulic oil pump performance is stablized.
Described raising vane hydraulic operation of oil pump stability approach, is characterized in that: the through hole on counterpart and the one side gap between locating stud are 0.225 ~ 0.268mm.
Described raising vane hydraulic operation of oil pump stability approach, is characterized in that: locating stud one end and housing, one side gap between thrust plate and stator through hole are 0.350 ~ 0.368 mm.
The second improves vane hydraulic operation of oil pump stability approach, it is characterized in that: the through hole on increase vane hydraulic oil pump thrust plate and the gap between locating stud.Because the gap between the through hole increased on vane hydraulic oil pump thrust plate and locating stud, both rotor, blade and thrust plate had been made to have manufacturing tolerance to accumulate, still can ensure that moving axially of thrust plate in working procedure is smooth and easy, pressure between rotor and thrust plate would not be made excessive and oil distribution casing is worn or pulls, vane hydraulic oil pump performance is stablized.
Described raising vane hydraulic operation of oil pump stability approach, is characterized in that: the through hole on pump port plate and the one side gap between locating stud are 0.225 ~ 0.268mm.
Described raising vane hydraulic operation of oil pump stability approach, is characterized in that: the one side gap between locating stud one end and the through hole of pump port plate is 0.350 ~ 0.368 mm.
Raising vane hydraulic operation of oil pump stability approach of the present invention, both can by the size reducing locating stud, also can reach with the hole expanding counterpart, the vane hydraulic oil pump that the method is improved can ensure the smooth and easy movement of the axis of thrust plate in working procedure, and vane hydraulic oil pump performance is stablized.
Accompanying drawing explanation
Fig. 1 is the structural representation of pressing vane hydraulic oil pump in the heavy single duplex of Japanese IHI company.
Fig. 2 is the side sectional view of Fig. 1.
Fig. 3 is the locating stud schematic diagram of pressing vane hydraulic oil pump in the heavy single duplex of Japanese IHI company.
Fig. 4 is that method of the present invention is to the schematic diagram of pressing the locating stud of vane hydraulic oil pump to improve in the heavy single duplex of Japanese IHI company.
Fig. 5 is that method of the present invention is to the schematic diagram of pressing locating stud one end of vane hydraulic oil pump to improve in the heavy single duplex of Japanese IHI company.
Embodiment
The explanation of Fig. 1 mark: pump case 1, blade 2, rotor 3, pump end cap 4, A-hydraulic-pressure pump filler opening, B-hydraulic-pressure pump oil outlet.
The explanation of Fig. 2 mark: locating stud 5, stator 6, rotating shaft 7, kickboard 8, thrust plate 9.
See Fig. 1, the embodiment of raising vane hydraulic operation of oil pump stability approach of the present invention presses vane hydraulic oil pump for improving in the heavy single duplex of Japanese IHI company, the through hole on increase vane hydraulic oil pump thrust plate 9 and the gap (see Fig. 2) between locating stud 5.
Because the gap between the through hole increased on vane hydraulic oil pump thrust plate 9 and locating stud 5, both rotor 3, blade 2 and thrust plate 9 had been made to have manufacturing tolerance to accumulate, still can ensure that moving axially of thrust plate 9 in working procedure or kickboard 8 is smooth and easy, rotating shaft 7 rotor driven 3 rotate into, pressure between rotor 3 and thrust plate 9 can not be made excessive and oil distribution casing is worn or pulls, vane hydraulic oil pump performance is stablized.Pump case 1 is bolted on pump end cap 4.
The hole size on the thrust plate 9 of vane hydraulic oil pump is pressed to be φ 8.5 in the heavy single duplex of IHI company of Japan
+ 0.036.
See Fig. 3, the external diameter size of former drawing locating stud 5 is φ 8.3
-0.05, the through hole on former pump port plate 9 and the one side gap between locating stud 5 are 0.100mm ~ 0.143mm.See Fig. 4, the external diameter size of the locating stud 5 after improvement is φ 8.3(
-0.25/ -0.30), like this, the through hole on pump port plate 9 and the one side gap between locating stud 5 are 0.225 ~ 0.268mm.
See Fig. 5, the external diameter size of one end of the locating stud 5 after improvement is φ 7.8, and like this, the one side gap between the through hole of locating stud 5 one end and pump port plate 9 is 0.350 ~ 0.368 mm.
By pressing vane hydraulic oil pump to improve rear front detection with mesohigh vane hydraulic Fuel Injection Pump Test-Bed in the heavy single duplex of Japanese IHI company, stable being significantly improved of middle pressure vane hydraulic operation of oil pump after improvement, before improvement, volumetric efficiency is 92%, mechanical efficiency is 92.4%, and total efficiency is 85%; After improvement, volumetric efficiency is 98.5%, and mechanical efficiency is 96%, and total efficiency is 95%.
Raising vane hydraulic operation of oil pump stability approach of the present invention, the vane hydraulic oil pump that the method is improved can ensure the smooth and easy movement of the axis of thrust plate 9 in working procedure, and vane hydraulic oil pump performance is stablized.Applying of the method, to raising vane hydraulic oil pump performance, raising product rate of good product, save production cost positive meaning.
Claims (6)
1. improve vane hydraulic operation of oil pump stability approach, it is characterized in that: the gap increasing through hole between vane hydraulic oil pump locating stud and counterpart, described counterpart comprises housing, thrust plate, stator and kickboard, or comprises housing, thrust plate and stator.
2. raising vane hydraulic operation of oil pump stability approach according to claim 1, is characterized in that: the through hole on counterpart and the one side gap between locating stud are 0.225 ~ 0.268mm.
3. raising vane hydraulic operation of oil pump stability approach according to claim 1, is characterized in that: locating stud one end and housing, one side gap between thrust plate and stator through hole are 0.350 ~ 0.368mm.
4. improve vane hydraulic operation of oil pump stability approach, it is characterized in that: the through hole on increase vane hydraulic oil pump thrust plate and the gap between locating stud.
5. raising vane hydraulic operation of oil pump stability approach according to claim 4, is characterized in that: the through hole on pump port plate and the one side gap between locating stud are 0.225 ~ 0.268mm.
6. raising vane hydraulic operation of oil pump stability approach according to claim 4, is characterized in that: the one side gap between locating stud one end and the through hole of pump port plate is 0.350 ~ 0.368mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210097343.5A CN102606476B (en) | 2012-04-05 | 2012-04-05 | Method for improving working stability of vane type hydraulic oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210097343.5A CN102606476B (en) | 2012-04-05 | 2012-04-05 | Method for improving working stability of vane type hydraulic oil pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102606476A CN102606476A (en) | 2012-07-25 |
| CN102606476B true CN102606476B (en) | 2015-01-14 |
Family
ID=46524149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210097343.5A Active CN102606476B (en) | 2012-04-05 | 2012-04-05 | Method for improving working stability of vane type hydraulic oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102606476B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3447477A (en) * | 1967-06-22 | 1969-06-03 | Sperry Rand Corp | Power transmission |
| JPS5536839B2 (en) * | 1974-02-27 | 1980-09-24 | ||
| JPS6126638Y2 (en) * | 1980-12-27 | 1986-08-09 | ||
| JP2670770B2 (en) * | 1986-05-20 | 1997-10-29 | 株式会社ユニシアジェックス | Vane pump |
| DE3909831A1 (en) * | 1989-03-25 | 1990-09-27 | Becker Kg Gebr | Sliding-vane rotary pump designed for dry running, and method for manufacturing it |
| DE4313282C2 (en) * | 1993-04-23 | 1998-05-20 | Balzers Pfeiffer Gmbh | Method of manufacturing a pump system |
-
2012
- 2012-04-05 CN CN201210097343.5A patent/CN102606476B/en active Active
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| Publication number | Publication date |
|---|---|
| CN102606476A (en) | 2012-07-25 |
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