CN207715366U - Double-acting vane pump - Google Patents
Double-acting vane pump Download PDFInfo
- Publication number
- CN207715366U CN207715366U CN201721831866.2U CN201721831866U CN207715366U CN 207715366 U CN207715366 U CN 207715366U CN 201721831866 U CN201721831866 U CN 201721831866U CN 207715366 U CN207715366 U CN 207715366U
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- China
- Prior art keywords
- oil
- oil outlet
- sealing ring
- double
- rear cover
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Abstract
The utility model discloses a kind of double-acting vane pumps, two oil outlet is equivalent to two pumps using independent sealed, two oil outlet sealings are designed to asymmetric structure, often work oil outlet is using the larger selenodont sealing of area, when system low on fuel, oil pump switching valve feedback end pressure is low, and spool is in left position closed state, check valve is opened at this time, and double pump is to working connection fuel feeding；With the raising of engine speed, when system oil mass is sufficient, oil pressure reaches certain value, oil pump switching valve is in middle position, at this time closed check valve, and seldom the direct zero load of the flow of working barrel releases, and adds to oil inlet；When the pump work that only often works, when flow system flow is still sufficient, oil pump switching valve is in right position, and check valve is still closed at this time, and seldom still zero load releases the flow of working barrel, and the partial discharge band load of normal working barrel is released, and oil pump oil inlet is added to；Since the flow of seldom working barrel can be released without load, the efficiency of hydraulic system is substantially increased.
Description
Technical field
The utility model can be used in the hydraulic system of all kinds of speed changers of AT, DCT, CVT, be a kind of double-acting vane pump.
Background technology
Traditional double-acting vane pump, two oil outlets can not work independently, and hydraulic system efficiency is low.Traditional blades pump
For the pump housing usually together with vane pump Ontology integration, structure is more complex.
Utility model content
The utility model is in view of the problems of the existing technology and insufficient, provides a kind of novel double-acting vane pump.
The utility model is to solve above-mentioned technical problem by following technical proposals：
The utility model provides a kind of double-acting vane pump comprising axis, protecgulum, stator and rear cover, feature be, institute
It states rear cover and carries out circumferentially positioned, the bottom gap cooperation of the rear cover and gear box casing with gear box casing, the protecgulum is logical
Bolt is crossed on gear box casing, the protecgulum is sealed with gear box casing mating surface using the first sealing ring；
The protecgulum, stator and after cover and respectively set two openings respectively, described two openings respectively constitute oil inlet a with
Oil inlet b；It is covered after described and sets out hydraulic fluid port a and oil outlet b, it is only using the second sealing ring and two oil outlets of third sealing ring pair
Vertical sealing, second sealing ring covers after to be surrounded oil outlet a and avoids wearing shaft position and oil outlet b, second sealing
Whole circle is in selenodont, and the third sealing ring covers after surrounds the edges oil outlet b, whole in the O for adapting to oil outlet size
Type；
The oil inlet a is connected to normal working barrel with oil outlet a, and the oil inlet b is connected to seldom working barrel with oil outlet b,
The oil inlet and oil outlet are oily with corresponding oil inlet supplement channel and two oil outlet channels on corresponding gear box casing respectively
Road is connected to, and two oil outlet interchannels use the list that seldom working barrel oil outlet channel is connected to normal working barrel oil outlet channel
Connection connection is carried out to valve, two oil outlet channel outlet positions further include controlling fuel-displaced eventually flow to according to engine oil pressure
Oil pump switching valve.
Preferably, the double-acting vane pump further includes rotor, pass through the first clamp spring and the second clamp spring being mounted on an axle
Rotor is fixed on axis, protecgulum, stator and rear cover are sequentially fixed on axis by the shaft shoulder and third clamp spring.
Preferably, matching the mating surface outer edge of rear cover, second sealing ring on the outside of the second sealing ring selenodont
Matching rear cover wears shaft position edge on the inside of selenodont.
Preferably, arc-shaped transition connects between the second sealing ring selenodont medial and lateral.
Preferably, opening up the groove for fixing the second sealing ring and third sealing ring in the mating surface of the rear cover.
On the basis of common knowledge of the art, above-mentioned each optimum condition, can arbitrarily combine to get the utility model respectively compared with
Good example.
The positive effect of the utility model is：
Two oil outlets of double-acting vane pump are equivalent to two pumps using independent sealed, and when single pump work, another is pumped
Can zero load directly oil released add to oil inlet, considerably increase the efficiency of hydraulic system.
The fixation that vane pump is carried out using the shaft shoulder and clamp spring, prevents vane pump from scattering, simple in structure, reduces fixed spiral shell
Bolt.
Oil outlet uses asymmetric sealing structure, normal workspace to be adopted using the larger selenodont of area, seldom workspace
With O-shaped, with expand acted on when blade pump work after the oil pressure area that covers, increase pressure, it is ensured that rear cover under each operating mode, fixed
Son, protecgulum are in impaction state, effectively prevent the generation of leakage.
Description of the drawings
Fig. 1 is the stereogram of the double-acting vane pump of the utility model preferred embodiment.
Fig. 2 is the explosive view of the double-acting vane pump of the utility model preferred embodiment.
Fig. 3 is the fundamental diagram of the double-acting vane pump of the utility model preferred embodiment.
In figure, 1- protecgulums；2- stators；3- rotors；4- blades；5- rear covers；6- axis；7- positioning pins；8- sealing rings；9- is sealed
Circle；10- sealing rings；11- driving wheels；12- pivot pins；13- bearings；14- clamp springs；15- oil outlets a；16- oil outlets b；17- oil inlets
Mouth a；18- oil inlets b；19- clamp springs；20- clamp springs；The 21- shaft shoulders；22- check valves；23- oil pump switching valves；The normal working barrels of 24-；
25- seldom working barrels.
Specific implementation mode
It is new below in conjunction with this practicality to keep the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, the every other embodiment that those of ordinary skill in the art are obtained without making creative work all belong to
In the range of the utility model protection.
As shown in Figs. 1-3, the present embodiment provides a kind of double-acting vane pumps comprising axis 6, protecgulum 1, stator 2, rotor 3
With rear cover 5, the rear cover 5 and gear box casing progress are circumferentially positioned, and the rear cover 5 and the bottom gap of gear box casing are matched
It closes, the protecgulum 1 is mounted on by bolt on gear box casing, and the protecgulum 1 uses sealing ring 8 with gear box casing mating surface
It is sealed.Rotor 3 is fixed on axis 6 by clamp spring 19 on axis 6 and clamp spring 20, passes through the shaft shoulder 21 and clamp spring 14
Protecgulum 1, stator 2 and rear cover 5 are sequentially fixed on axis 6.
As shown in Figure 1, two openings are respectively set on the protecgulum 1, stator 2 and rear cover 5 respectively, described two opening difference
Constitute oil inlet a17 and oil inlet b18；Hydraulic fluid port a15 and oil outlet b16 is set out on the rear cover 5, using sealing ring 9 and sealing
It is independent sealed to enclose 10 pairs of two oil outlets, the sealing ring 9 surrounds oil outlet a15 on rear cover 5 and avoids wearing shaft position and go out
Hydraulic fluid port b16, the whole sealing ring 9 is in selenodont, and the mating surface outer edge of rear cover 5 is matched on the outside of the sealing ring September tooth form,
Matching rear cover 5 wears shaft position edge on the inside of the sealing ring September tooth form, arc mistake between the sealing ring September tooth form medial and lateral
Cross connection.The sealing ring 10 surrounds the edges oil outlet b16 on rear cover 5, whole in the O-shaped of adaptation oil outlet size.In addition,
The groove for fixed seal ring 9 and sealing ring 10 is opened up in the mating surface of the rear cover 5.
As shown in figure 3, the oil inlet a17 is connected to normal working barrel 24 with oil outlet a15, the oil inlet b18 with it is fuel-displaced
Seldom working barrel 25, the oil inlet and oil outlet are mended with corresponding oil inlet on corresponding gear box casing respectively for mouth b16 connections
It fills channel to be connected to two oil outlet channel oil ducts, two oil outlet interchannels are used and will be seldom connected in working barrel oil outlet channel
The check valve 22 in normal working barrel oil outlet channel carries out connection connection, and two oil outlet channel outlet positions further include that basis is started
Oil pressure controls the fuel-displaced oil pump switching valve 23 eventually flowed to.
Three kinds of left, center, right channel status is arranged in the oil pump switching valve 23；When the state of left position, oil pump switching valve 23 is by two
A oil outlet channel is oriented to for the oil feed non-return valve to working connection fuel feeding；When middle position state, oil pump switching valve 23 will often work
It pumps out hydraulic fluid port channel and is oriented to oil feed non-return valve to working connection fuel feeding, it is logical that seldom working barrel oil outlet channel is oriented to oil inlet supplement
Road；When right position state, two oil outlet channels are oriented to oil inlet and mend channel by oil pump switching valve 23.
Two oil outlets of double-acting vane pump are equivalent to two pumps using independent sealed, oily when system low on fuel
It pumps switching valve 23 and feeds back that end pressure is low, and spool be in left position closed state, the unlatching of check valve 22 at this time, double-acting vane pump is to master
Oil circuit fuel feeding；With the raising of engine speed, when system oil mass is sufficient, oil pressure reaches certain value, at oil pump switching valve 23
Yu Zhongwei, the closing of check valve 22 at this time, seldom the direct zero load of the flow of working barrel 25 releases, and adds to oil inlet；When only often
Working barrel 24 works, and when flow system flow is still sufficient, oil pump switching valve 23 is in right position, and check valve 22 is still closed at this time, no
Still zero load releases the flow of normal working barrel 25, and the partial discharge band load of normal working barrel 24 is released, and oil pump oil inlet is added to；
Since the flow of seldom working barrel 25 can be released without load, the efficiency of hydraulic system is substantially increased.
The fixation that vane pump is carried out using the shaft shoulder and clamp spring, prevents vane pump from scattering, simple in structure, reduces fixed spiral shell
Bolt.
Oil outlet uses asymmetric sealing structure, and normal workspace is using the larger selenodont of area, to ensure occupying
It is not interfered with other structures in the case of area is maximum, seldom workspace is using O-shaped, and when blade air pump inoperative leans on sealing ring
Squeeze and rear cover, stator, protecgulum be in impaction state, when blade pump work by oil outlet oil pressure act on after cover, counteracting leaf
Rear cover, stator, protecgulum are in further impaction state by piece internal pressure, with expand acted on when blade pump work after cover
Oil pressure area, increase pressure, effectively prevent leakage generation.
Two oil outlets sealing that this product is covered by after is designed to asymmetric structure type, and the oil outlet a that often works is adopted
It is sealed with the larger selenodont sealing ring 9 of area, increases oil outlet high pressure oil and act on the area on rear cover 5, to increase
Big pressure, it is ensured that rear cover 5 is tightly pressed against on stator 2 under instantaneous high pressure impact, ensures volumetric efficiency of the pump under each operating mode.
Although the foregoing describe specific embodiment of the present utility model, it will be appreciated by those of skill in the art that
These are merely examples, and the scope of protection of the utility model is defined by the appended claims.Those skilled in the art
Member can make these embodiments numerous variations or repair under the premise of without departing substantially from the principles of the present invention and essence
Change, but these change and modification each fall within the scope of protection of the utility model.
Claims (5)
1. a kind of double-acting vane pump comprising axis, protecgulum, stator and rear cover, which is characterized in that the rear cover and transmission housing
Body progress is circumferentially positioned, and the bottom gap cooperation of the rear cover and gear box casing, the protecgulum is mounted on speed change by bolt
On tank shell, the protecgulum is sealed with gear box casing mating surface using the first sealing ring；
The protecgulum, stator and after cover and respectively set two openings respectively, described two openings respectively constitute oil inlet a and oil inlet
Mouth b；It is covered after described and sets out hydraulic fluid port a and oil outlet b, it is independently close using the second sealing ring and two oil outlets of third sealing ring pair
Envelope, second sealing ring covers after to be surrounded oil outlet a and avoids wearing shaft position and oil outlet b, and second sealing ring is whole
Body is in selenodont, and the third sealing ring covers after surrounds the edges oil outlet b, whole in the O-shaped of adaptation oil outlet size；
The oil inlet a is connected to normal working barrel with oil outlet a, and the oil inlet b is connected to seldom working barrel with oil outlet b, described
Oil inlet and oil outlet connect with corresponding oil inlet supplement channel and two oil outlet channel oil ducts on corresponding gear box casing respectively
Logical, two oil outlet interchannels use the check valve that seldom working barrel oil outlet channel is connected to normal working barrel oil outlet channel
Connection connection is carried out, two oil outlet channel outlet positions further include controlling the fuel-displaced oil pump eventually flowed to according to engine oil pressure
Switching valve.
2. double-acting vane pump as described in claim 1, which is characterized in that the double-acting vane pump further includes rotor, is led to
It crosses the first clamp spring being mounted on an axle and rotor is fixed on axis by the second clamp spring, by the shaft shoulder and third clamp spring by protecgulum, fixed
Son and rear cover are sequentially fixed on axis.
3. double-acting vane pump as described in claim 1, which is characterized in that on the outside of the second sealing ring selenodont after matching
The mating surface outer edge of lid, the second sealing ring selenodont inside matching rear cover wear shaft position edge.
4. double-acting vane pump as claimed in claim 3, which is characterized in that between the second sealing ring selenodont medial and lateral
Arc-shaped transition connects.
5. double-acting vane pump as described in claim 1, which is characterized in that opened up in the mating surface of the rear cover for fixing
The groove of second sealing ring and third sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721831866.2U CN207715366U (en) | 2017-12-25 | 2017-12-25 | Double-acting vane pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721831866.2U CN207715366U (en) | 2017-12-25 | 2017-12-25 | Double-acting vane pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207715366U true CN207715366U (en) | 2018-08-10 |
Family
ID=63049611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721831866.2U Active CN207715366U (en) | 2017-12-25 | 2017-12-25 | Double-acting vane pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207715366U (en) |
-
2017
- 2017-12-25 CN CN201721831866.2U patent/CN207715366U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |