CN206290425U - A kind of double static pressure supporting constructions of swash plate of Variable plunger pump - Google Patents
A kind of double static pressure supporting constructions of swash plate of Variable plunger pump Download PDFInfo
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- CN206290425U CN206290425U CN201621387668.7U CN201621387668U CN206290425U CN 206290425 U CN206290425 U CN 206290425U CN 201621387668 U CN201621387668 U CN 201621387668U CN 206290425 U CN206290425 U CN 206290425U
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- swash plate
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- oil circuit
- sliding bearing
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Abstract
The utility model is related to a kind of double static pressure supporting constructions of inclined plate of variable piston pump, including swash plate, piston shoes and sliding bearing, the piston shoes are connected with swash plate, and the swash plate is arranged on sliding bearing, swash plate includes higher-pressure region and low-pressure area, piston shoes are arranged on higher-pressure region and low-pressure area, and the first oil circuit is provided with inside the piston shoes, and the first oil circuit extends to sliding bearing by swash plate, the second oil circuit is provided with the swash plate, the second oil circuit will respectively be located at the first oil communication of higher-pressure region and low-pressure area.Double static pressure supporting constructions of inclined plate of variable piston pump of the present utility model, by increasing the second oil circuit drainage inside swash plate, the pressure oil of higher-pressure region is caused into low-pressure area, the sliding bearing of low-pressure area is set to be subject to low-pressure area support force, it is provided simultaneously with the function of forced feed lubrication sliding bearing, the abrasion of low-pressure area is significantly slow down, the service life of sliding bearing can significantly extend.
Description
Technical field
The utility model is related to Variable plunger pump, double static pressure supporting constructions of more particularly to a kind of inclined plate of variable piston pump.
Background technology
Variable plunger pump generally sets piston shoes in plunger head, and piston shoes are by hydrostatic bearing principle design, in cylinder body
Pressure oil flows into piston shoes grease chamber by plunger ball medial small hole, makes to form hydrodynamic lubrication between piston shoes and swash plate, improves stopper head
Contact situation of the portion with swash plate.At present, draw the sliding bearing Variable plunger pump that in the market is used, the working region according to piston shoes
Point, swash plate working face is divided into higher-pressure region (laminated oil zone) and low-pressure area (oil suction area).In low-pressure area oil suction, higher-pressure region is by institute for piston shoes
The fluid output of absorption.As shown in figure 1, swash plate is made a concerted effort by piston shoes effect, typically in higher-pressure region, low-pressure area using static pressure support
Structure, to reduce abrasion of the swash plate to sliding bearing.In real work, swash plate has a high pressure support force in higher-pressure region, but because
The low even negative pressure of pressure (fluid comes from low-pressure area) of the static pressure support that low-pressure area is used, the region supports without static pressure.According to
Actual conditions are analyzed, the active force of low-pressure area up to higher-pressure region half or so, often in low-pressure area sliding bearing abrasion quickly,
Frequently under operating mode, after use after a while, low-pressure area sliding bearing brings abnormal sound, heating, becomes variable with regard to serious wear
The amount various use problems such as movement response is slow or even reactionless.Not solve this problem, in the prior art, partial pressure flow
Product higher employs rolling bearing design, but its cost can be higher, and bulk is also big.Solution also is
Low pressure fluid is introduced as lubrication assistant in low-pressure area, but is acted on unobvious.
Utility model content
The utility model is in order to solve problem of the prior art, there is provided one kind can be lubricated and energy to sliding bearing
Low-pressure area is enough set to obtain support force, so as to reduce double static pressure supporting constructions of the inclined plate of variable piston pump of sliding bearing abrasion.
Concrete technical scheme is as follows：A kind of double static pressure supporting constructions of inclined plate of variable piston pump, including swash plate, piston shoes and cunning
Dynamic bearing, the piston shoes are connected with swash plate, and the swash plate is arranged on sliding bearing, and swash plate includes higher-pressure region and low-pressure area, sliding
Boots are arranged on higher-pressure region and low-pressure area, and the first oil circuit is provided with inside the piston shoes, and the first oil circuit extends to sliding axle by swash plate
Hold, the second oil circuit is provided with the swash plate, the second oil circuit will respectively be located at the first oil communication of higher-pressure region and low-pressure area.
It is below attached technical scheme of the present utility model.
Preferably, a piston shoes of a piston shoes of the higher-pressure region and low-pressure area pass through the second oil communication.
Preferably, first oil circuit includes first paragraph portion and second segment portion, and first paragraph portion is arranged in piston shoes,
Second segment portion is arranged in swash plate, and second oil circuit is connected with second segment portion.
Preferably, the swash plate middle part is provided with through hole, and first oil circuit is perpendicular to plane where through hole.
Preferably, the swash plate both sides are provided with supporting part, and the sliding bearing is arranged on supporting part.
Technique effect of the present utility model：Double static pressure supporting constructions of inclined plate of variable piston pump of the present utility model, pass through
Increase the second oil circuit drainage inside swash plate, the pressure oil of higher-pressure region is caused into low-pressure area, enable the sliding bearing of low-pressure area
By low-pressure area support force, the function of forced feed lubrication sliding bearing is provided simultaneously with, significantly slow down the abrasion of low-pressure area, sliding axle
The service life held can significantly extend.
Brief description of the drawings
Fig. 1 is the swash plate force diagram of the Variable plunger pump of prior art in the utility model background technology.
Fig. 2 is the schematic diagram of double static pressure supporting constructions of the inclined plate of variable piston pump of the utility model embodiment.
Fig. 3 is the stress diagram of the inclined plate of variable piston pump of the utility model embodiment.
Specific embodiment
Below, substantive distinguishing features of the present utility model and advantage are further described with reference to example, but this practicality is new
Type is not limited to listed embodiment.
As shown in Figures 2 and 3, double static pressure supporting constructions of the inclined plate of variable piston pump of the present embodiment include swash plate 1, piston shoes
2 and sliding bearing 3, the piston shoes 2 are connected with swash plate 1, and the swash plate 1 is arranged on sliding bearing 3, so that piston shoes can
Drive swash plate motion.Swash plate 1 includes higher-pressure region 10 and low-pressure area 20, and piston shoes 2 are arranged on higher-pressure region 10 and low-pressure area 20.The cunning
The first oil circuit 4 is provided with inside boots 2, the first oil circuit 4 extends to sliding bearing 3, the second oil circuit is provided with the swash plate by swash plate 1
5, the second oil circuit 5 will be connected positioned at higher-pressure region with the first oil circuit 4 of low-pressure area respectively.In above-mentioned technical proposal, by by piston shoes 2
The pressure oil of high pressure the sliding bearing 3 of higher-pressure region below swash plate 1, low-pressure area is caused by the first oil circuit and the second oil circuit
On.So as to increased high-pressure static pressure Area of bearing, supporting role power increased by the effect of oil pressure.So that swash plate 1 reduces
The piston shoes active force for being born, slow down the abrasion of the sliding bearing 3 of low-pressure area.
As shown in Figures 2 and 3, further, a piston shoes of a piston shoes of the higher-pressure region 10 and low-pressure area 20 lead to
Cross the second oil circuit 5 to connect (as shown in Figure 2) so that the fluid of higher-pressure region can enter low-pressure area by the second oil circuit.Described
One oil circuit 4 includes first paragraph portion 41 and second segment portion 42, and first paragraph portion 41 is arranged in piston shoes 2, and second segment portion 42 is arranged on tiltedly
In disk 1, second oil circuit 5 is connected with second segment portion 42.Swash plate middle part is provided with through hole 6, first oil circuit 4 perpendicular to
Plane where through hole.The both sides of the swash plate 1 are provided with supporting part 11, and the sliding bearing 3 is arranged on supporting part.
Double static pressure supporting constructions of the inclined plate of variable piston pump of the present embodiment are drawn by increasing the second oil circuit inside swash plate
Stream, low-pressure area is caused by the pressure oil of higher-pressure region, the sliding bearing of low-pressure area is subject to low-pressure area support force, higher-pressure region
Sliding bearing is subject to higher-pressure region support force, is provided simultaneously with the function of forced feed lubrication sliding bearing, significantly slow down the mill of low-pressure area
Damage, the service life of sliding bearing can extend more than 3 times.
It is pointed out that above-mentioned preferred embodiment is only explanation technology design of the present utility model and feature, its purpose
It is to allow person skilled in the art will appreciate that content of the present utility model and implement according to this, this reality can not be limited with this
With new protection domain.All equivalent change or modifications made according to the utility model Spirit Essence, should all cover in this reality
Within new protection domain.
Claims (5)
1. double static pressure supporting constructions of a kind of inclined plate of variable piston pump, including swash plate, piston shoes and sliding bearing, the piston shoes with it is oblique
Disk is connected, and the swash plate is arranged on sliding bearing, and swash plate includes higher-pressure region and low-pressure area, and piston shoes are arranged on higher-pressure region and low pressure
Area, it is characterised in that the first oil circuit is provided with inside the piston shoes, the first oil circuit extends to sliding bearing by swash plate, described oblique
The second oil circuit is provided with disk, the second oil circuit will respectively be located at the first oil communication of higher-pressure region and low-pressure area.
2. double static pressure supporting constructions of inclined plate of variable piston pump as claimed in claim 1, it is characterised in that the higher-pressure region
One piston shoes of one piston shoes and low-pressure area pass through the second oil communication.
3. double static pressure supporting constructions of inclined plate of variable piston pump as claimed in claim 1, it is characterised in that first oil circuit
Including first paragraph portion and second segment portion, first paragraph portion is arranged in piston shoes, and second segment portion is arranged in swash plate, second oil circuit
Connected with second segment portion.
4. double static pressure supporting constructions of inclined plate of variable piston pump as claimed in claim 1, it is characterised in that the swash plate middle part
Through hole is provided with, first oil circuit is perpendicular to plane where through hole.
5. double static pressure supporting constructions of inclined plate of variable piston pump as claimed in claim 1, it is characterised in that the swash plate both sides
Supporting part is provided with, the sliding bearing is arranged on supporting part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621387668.7U CN206290425U (en) | 2016-12-17 | 2016-12-17 | A kind of double static pressure supporting constructions of swash plate of Variable plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621387668.7U CN206290425U (en) | 2016-12-17 | 2016-12-17 | A kind of double static pressure supporting constructions of swash plate of Variable plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206290425U true CN206290425U (en) | 2017-06-30 |
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ID=59103784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621387668.7U Active CN206290425U (en) | 2016-12-17 | 2016-12-17 | A kind of double static pressure supporting constructions of swash plate of Variable plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206290425U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112320594A (en) * | 2020-11-25 | 2021-02-05 | 中船重工重庆液压机电有限公司 | Large-area hanger load balancing system |
-
2016
- 2016-12-17 CN CN201621387668.7U patent/CN206290425U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112320594A (en) * | 2020-11-25 | 2021-02-05 | 中船重工重庆液压机电有限公司 | Large-area hanger load balancing system |
| CN112320594B (en) * | 2020-11-25 | 2022-05-31 | 中船重工重庆液压机电有限公司 | Large-area hanger load balancing system |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 402160, 284 flower road, Yongchuan District, Chongqing Patentee after: China Shipbuilding Chongqing Hydraulic Electromechanical Co.,Ltd. Address before: 402160, 284 flower road, Yongchuan District, Chongqing Patentee before: CSIC CHONGQING HYDRAULIC MECHANICAL-ELECTRONICAL Co.,Ltd. |