CN202756238U - Energy-saving type vane pump with overflow valve - Google Patents
Energy-saving type vane pump with overflow valve Download PDFInfo
- Publication number
- CN202756238U CN202756238U CN 201220407726 CN201220407726U CN202756238U CN 202756238 U CN202756238 U CN 202756238U CN 201220407726 CN201220407726 CN 201220407726 CN 201220407726 U CN201220407726 U CN 201220407726U CN 202756238 U CN202756238 U CN 202756238U
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- pump
- energy
- pump case
- overflow valve
- vane pump
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Abstract
The utility model provides an energy-saving type vane pump with an overflow valve. The energy-saving type vane pump with the overflow valve comprises a pump case. A low pressure cavity connected with a liquid intake, a high pressure cavity connected with a liquid pressing port, and a rotor are arranged in the pump case, wherein the rotor is arranged eccentrically. The rotor is provided with a plurality of vanes, and a valve hole is arranged in the pump case and is communicated with the low pressure cavity and the high pressure cavity. The overflow valve is arranged in the valve hole and comprises a valve core, a spring and a spring seat, the spring is arranged between the spring seat and the back end of the valve core, and the valve hole is blocked by the front end of the valve core. When pressure in the high pressure cavity exceeds a set pressure value, the overflow valve opens automatically. The valve core moves toward the back end of the valve core under the influence of high pressure oil, and then the high pressure cavity and the low pressure cavity are communicated to achieve pressure protection, and thus pressure protection of an output system of the vane pump is achieved. Meanwhile, the pump case and the vanes in the position of the high pressure cavity of the vane pump are also protected, and service life of the vane pump is prolonged.
Description
Technical field
The utility model relates to a kind of energy-saving vane pump, particularly relates to a kind of energy-saving vane pump of carry potential overflow valve.
Background technique
Vane pump is a kind of rotation by impeller, the mechanical energy of power engine is converted to the hydraulic machine of water energy (potential energy, kinetic energy, pressure energy).Vane pump mainly is comprised of parts such as rotor, stator (with the pump case one), blade, lead channel, liquid outlet groove, pump case and end caps, wherein, rotor is the cylindrical body with a plurality of axial grooves, blade is placed in the groove and can slides flexibly in groove, rotor is placed in the pump case with eccentric pivot hole (being the stator of pump), rotor and stator produce off-centre after installing, and then form the cavity volume of a liquid storage.In vane pump when work,, the power engine rotor driven rotates, and blade is at centrifugal force and pass under the effect of root of blade pressure oil, and vane tip is adjacent on stator inner surface, so just formed the one by one active chamber of sealing between two adjacent blades, stator and rotor.When rotor rotated, the blade of rotor one side was protruding, and the volume of active chamber is become greatly gradually, produced vacuum, and then sucked liquid by lead channel, namely sucked medium; Rotor is rotated further, and the volume of this active chamber diminishes gradually, and then by liquid outlet groove extruding liquid, namely extrudes medium.But vane pump is being inhaled---in the process of pressure, the pressure in the pump case increases gradually, when the liquid medium pressurized of output system during in output system, can cause the overload of output system pressure, increases energy consumption; Simultaneously also can be excessive for hyperbaric chamber, the blade pressurized of pump case, cause the damage of blade and pump case, reduced the working life of vane pump.
The model utility content
The shortcoming of prior art in view of the above, the technical problems to be solved in the utility model is to provide a kind of energy-saving vane pump of realizing the carry potential overflow valve of pressure protect.
For achieving the above object, the utility model provides a kind of energy-saving vane pump of carry potential overflow valve, comprise pump case, be provided with the low-pressure cavity that links to each other with liquid sucting port in the described pump case, and the hyperbaric chamber that links to each other with the hydraulic fluid mouth, off-centre is provided with a rotor in the described pump case, described rotor is provided with a plurality of blades, be provided with the valve opening of a described low-pressure cavity of connection and hyperbaric chamber in the described pump case, also be provided with a relief valve in the described valve opening, described relief valve comprises spool, spring and spring seat, described spring is located between spring seat and the spool rear end, the described valve opening of described spool front end shutoff.
Preferably, described spool rear end is provided with a blind hole, and described spring one end stretches in the blind hole and is connected with spool, and the other end withstands on the described spring seat.
Preferably, described spool front end is provided with a through hole, and described through hole is communicated with blind hole.
Further, described spring seat is fixedly connected with a pressure regulating cover by a pressure regulating screw, and described pressure regulating cover one end is threaded with pump case, the other end sealing cover that is threaded.
Preferably, between described pump case and the pressure regulating cover, all be provided with the first seal ring between pressure regulating cover and the sealing cover.
Further, described rotor is provided with a plurality of blade grooves, and described blades installation is in blade groove; Described blade groove bottom is provided with spring eye, is provided with the spring that is connected with described blade in the described spring eye.
Further, described pump case one side is fixedly connected with a bearing cap, opposite side is fixedly connected with a pump cover, described pump cover end is fixedly connected with an end cap, described rotor wears and is fixed in the rotating shaft, described rotating shaft one end bearing is in pump case, and the other end passes pump cover successively, end cap is fixedly connected with a belt pulley.
Preferably, between described rotating shaft and the pump cover, all be provided with lining between rotating shaft and the pump case.
Further, between described pump cover and the pump case, all be provided with the second seal ring between pump case and the bearing cap.
Preferably, be provided with the 3rd seal ring between described end cap and the pump cover.
As mentioned above, the energy-saving vane pump of the carry potential overflow valve that the utility model relates to has following beneficial effect:
In the energy-saving vane pump of the carry potential overflow valve that the utility model relates to; after the pressure at hyperbaric chamber place exceeds the force value of setting; relief valve is opened automatically; be that spool is moved to its rear end spring seat direction by the effect of high pressure liquid; and then hyperbaric chamber is communicated with low-pressure cavity; realize pressure protect; thereby not only make the output system of vane pump obtain pressure protect; avoid the pressure overload of vane pump output system; reached energy-conservation purpose; but also protected pump case and the blade at vane pump hyperbaric chamber place, prolong the working life of vane pump.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is that the A-A of Fig. 1 is to sectional view.
Fig. 3 is the B circle enlarged view of Fig. 2.
Embodiment
Below by particular specific embodiment mode of execution of the present utility model is described, person skilled in the art scholar can understand other advantages of the present utility model and effect easily by the disclosed content of this specification.
Notice, the appended graphic structure that illustrates of this specification, ratio, size etc., equal contents in order to cooperate specification to disclose only, understand and reading for person skilled in the art scholar, be not to limit the enforceable qualifications of the utility model, so technical essential meaning of tool not, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under the effect that the utility model can produce and the purpose that can reach, all should still drop on the technology contents that the utility model discloses and get in the scope that can contain.Simultaneously, quote in this specification as " on ", the term of D score, " left side ", " right side ", " centre " etc., also only for ease of understanding of narrating, but not in order to limit the enforceable scope of the utility model, the change of its relativeness or adjustment, under without essence change technology contents, when also being considered as the enforceable category of the utility model.
As shown in Figures 1 and 2, the utility model provides a kind of energy-saving vane pump of carry potential overflow valve, comprise pump case 1, be provided with the low-pressure cavity 104 that links to each other with liquid sucting port 101 in the described pump case 1, and the hyperbaric chamber 105 that links to each other with hydraulic fluid mouth 102, described pump case 1 interior off-centre is provided with a rotor 2, described rotor 2 is provided with a plurality of blades 3, be provided with the valve opening 103 of a described low-pressure cavity 104 of connection and hyperbaric chamber 105 in the described pump case 1, also be provided with a relief valve 4 in the described valve opening 103, described relief valve 4 comprises spool 41, spring 42 and spring seat 43, described spring 42 is located between spring seat 43 and spool 41 rear ends, the described valve opening 103 of described spool 41 front end shutoff.This vane pump is when original state; spool 41 blocking high-pressure chambeies 105 and low-pressure cavity 104; after vane pump work a period of time; when the pressure at hyperbaric chamber 105 places surpasses setting value; relief valve 4 can be opened automatically; be that spool 41 moves toward the direction towards spring seat 43, and then make hyperbaric chamber 105 be communicated with pressure release with low-pressure cavity 104, realize the pressure protect to vane pump.
Preferably, described spool 41 rear ends are provided with a blind hole 411, and described spring 42 1 ends stretch in the blind hole 411 and are connected with spool 41, and the other end withstands on the described spring seat 43.Described spool 4 front ends are provided with a through hole 412, and described through hole 412 is communicated with blind hole 411, in the present embodiment, described through hole 412 is perpendicular to described blind hole 411, spool 41 is in movement process like this, and through hole 412 effectively reduces the pressure reduction in blind hole 411 interior generations, and then guarantees spool 41 motions freely.
Further, described spring seat 43 is fixedly connected with a pressure regulating cover 6 by a pressure regulating screw 5, and described pressure regulating cover 6 one ends are threaded with pump case 1, the other end sealing cover 7 that is threaded.Come spacing between Regulation spring seat 43 and the pressure regulating cover 6 by pressure regulating screw 5, and then realize the setting of pump case 1 interior maximum pressure.
Preferably, see Fig. 3, described rotor 2 is provided with a plurality of blade grooves 21, and described blade 3 is installed in the blade groove 21; Described blade groove 21 bottoms are provided with spring eye 22, are provided with the spring 9 that is connected with described blade 3 in the described spring eye 22.Spring 9 is given 3 one initial pressures of blade, and the top of blade 3 is close on the internal surface (being the stator position of pump) of pump case 1.In the present embodiment, between rotor 2 and the pump case 1, make progress in the footpath of rotor 2, minimum clearance is 0.06～0.12; Between rotor 2 and the pump case 1, rotor 2 axially on, minimum clearance is 0.02～0.03.
Further, see Fig. 1, described pump case 1 one sides are fixedly connected with a bearing cap 10, opposite side is fixedly connected with a pump cover 11, described pump cover 11 ends are fixedly connected with an end cap 12, described rotor 2 wears and is fixed in the rotating shaft 13, and described rotating shaft 13 1 end bearings are in pump case 1, and the other end passes pump cover 11 successively, end cap 12 is fixedly connected with a belt pulley 14.Preferably, described rotating shaft 13 is key connecting with belt pulley 14, can be splined or flat key connection.In addition, pump case 1 and pump cover 11 are bolted with being connected and are connected to realize being fixedly connected with and locating between the two.Simultaneously, be fixed with a nut in the end of rotating shaft 13, be provided with packing ring between nut and the described belt pulley 14, effectively prevent belt pulley 14 in rotary course, axially produce displacement in rotating shaft 13.
Preferably, in order to improve the sealing of this vane pump, prevent the seepage of pressure liquid, between described pump case 1 and the pressure regulating cover 6, all be provided with the first seal ring 8 between pressure regulating cover 6 and the sealing cover 7.Between described pump cover 11 and the pump case 1, all be provided with the second seal ring 16 between pump case 1 and the bearing cap 10.Be provided with the 3rd seal ring 17 between described end cap 12 and the pump cover 11.
Further, for working life and the convenient for maintaining that improves pump, after selecting the high-quality steel to heat-treat, described rotating shaft 13 carries out again nitriding treatment, to improve working life, between described rotating shaft 13 and the pump cover 11, all be provided with lining 15 between rotating shaft 13 and the pump case 1, so that repair and replacement.
In the utility model, form the active chamber of a sealing between two adjacent blades 3, rotor 2, pump case 1 and the pump covers 11 at seal area, belt pulley 14 drives rotating shaft 13 and rotates, and then driving rotor 2 rotates (in the present embodiment, from Fig. 2, rotor 2 clockwise rotates), at low-pressure cavity 104 places, the volume of active chamber becomes greatly gradually, forms vacuum, and then imbibition; This active chamber moves to hyperbaric chamber 105 places, and the volume of active chamber diminishes gradually, and then hydraulic fluid.
In sum; in the energy-saving vane pump of the carry potential overflow valve that the utility model relates to; after the pressure at hyperbaric chamber place exceeds the force value of setting; relief valve is opened automatically; be that spool is moved to its rear end spring seat direction by the effect of high pressure oil; and then hyperbaric chamber is communicated with low-pressure cavity; realize pressure protect; thereby not only make the output system of vane pump obtain pressure protect; avoid the pressure overload of vane pump output system; reach energy-conservation purpose, but also protected pump case and the blade at hyperbaric chamber place, prolonged the working life of vane pump.So the utility model has effectively overcome various shortcoming of the prior art and the tool high industrial utilization.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not is used for restriction the utility model.Any person skilled in the art scholar all can be under spirit of the present utility model and category, and above-described embodiment is modified or changed.Therefore, have in the technical field under such as and know that usually the knowledgeable modifies or changes not breaking away from all equivalences of finishing under spirit that the utility model discloses and the technological thought, must be contained by claim of the present utility model.
Claims (10)
1. the energy-saving vane pump of a carry potential overflow valve, comprise pump case (1), be provided with the low-pressure cavity (104) that links to each other with liquid sucting port (101) in the described pump case (1), and the hyperbaric chamber (105) that links to each other with hydraulic fluid mouth (102), the interior off-centre of described pump case (1) is provided with a rotor (2), described rotor (2) is provided with a plurality of blades (3), it is characterized in that: the valve opening (103) that is provided with a connection described low-pressure cavity (104) and hyperbaric chamber (105) in the described pump case (1), also be provided with a relief valve (4) in the described valve opening (103), described relief valve (4) comprises spool (41), spring (42) and spring seat (43), described spring (42) is located between spring seat (43) and spool (41) rear end, the described valve opening of described spool (41) front end shutoff (103).
2. the energy-saving vane pump of carry potential overflow valve according to claim 1, it is characterized in that: described spool (41) rear end is provided with a blind hole (411), described spring (42) one ends stretch in the blind hole (411) and are connected with spool (41), and the other end withstands on the described spring seat (43).
3. the energy-saving vane pump of carry potential overflow valve according to claim 2, it is characterized in that: described spool (4) front end is provided with a through hole (412), and described through hole (412) is communicated with blind hole (411).
4. the energy-saving vane pump of carry potential overflow valve according to claim 1, it is characterized in that: described spring seat (43) is fixedly connected with a pressure regulating cover (6) by a pressure regulating screw (5), described pressure regulating cover (6) one ends are threaded with pump case (1), the other end sealing cover (7) that is threaded.
5. the energy-saving vane pump of carry potential overflow valve according to claim 4 is characterized in that: between described pump case (1) and the pressure regulating cover (6), all be provided with the first seal ring (8) between pressure regulating cover (6) and the sealing cover (7).
6. the energy-saving vane pump of carry potential overflow valve according to claim 1, it is characterized in that: described rotor (2) is provided with a plurality of blade grooves (21), and described blade (3) is installed in the blade groove (21); Described blade groove (21) bottom is provided with spring eye (22), is provided with the spring (9) that is connected with described blade (3) in the described spring eye (22).
7. the energy-saving vane pump of carry potential overflow valve according to claim 1, it is characterized in that: described pump case (1) one side is fixedly connected with a bearing cap (10), opposite side is fixedly connected with a pump cover (11), described pump cover (11) end is fixedly connected with an end cap (12), described rotor (2) wears and is fixed in the rotating shaft (13), described rotating shaft (13) one end bearings are in pump case (1), and the other end passes pump cover (11) successively, end cap (12) is fixedly connected with a belt pulley (14).
8. the energy-saving vane pump of carry potential overflow valve according to claim 7 is characterized in that: between described rotating shaft (13) and the pump cover (11), all be provided with lining (15) between rotating shaft (13) and the pump case (1).
9. the energy-saving vane pump of carry potential overflow valve according to claim 7 is characterized in that: between described pump cover (11) and the pump case (1), all be provided with the second seal ring (16) between pump case (1) and the bearing cap (10).
10. the energy-saving vane pump of carry potential overflow valve according to claim 7 is characterized in that: be provided with the 3rd seal ring (17) between described end cap (12) and the pump cover (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220407726 CN202756238U (en) | 2012-08-16 | 2012-08-16 | Energy-saving type vane pump with overflow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220407726 CN202756238U (en) | 2012-08-16 | 2012-08-16 | Energy-saving type vane pump with overflow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202756238U true CN202756238U (en) | 2013-02-27 |
Family
ID=47735423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220407726 Expired - Fee Related CN202756238U (en) | 2012-08-16 | 2012-08-16 | Energy-saving type vane pump with overflow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202756238U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104131981A (en) * | 2014-07-17 | 2014-11-05 | 华泽遂 | V-shaped multidirectional oil delivery pump and use method thereof |
| CN107293419A (en) * | 2017-08-29 | 2017-10-24 | 河南机电职业学院 | Breaker |
| RU188640U1 (en) * | 2019-01-09 | 2019-04-18 | Закрытое акционерное общество "Электромагнит" (ЗАО "Электромагнит") | Slide pump |
| CN111878388A (en) * | 2020-09-08 | 2020-11-03 | 青岛大学 | Inner rotor swing scraper pump |
| CN113202747A (en) * | 2021-06-23 | 2021-08-03 | 河南航天液压气动技术有限公司 | Rotary plate pump |
| RU2787620C1 (en) * | 2022-04-25 | 2023-01-11 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Саратовский государственный технический университет имени Гагарина Ю.А." (СГТУ имени Гагарина Ю.А.) | Gate supercharger |
-
2012
- 2012-08-16 CN CN 201220407726 patent/CN202756238U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104131981A (en) * | 2014-07-17 | 2014-11-05 | 华泽遂 | V-shaped multidirectional oil delivery pump and use method thereof |
| CN104131981B (en) * | 2014-07-17 | 2016-04-13 | 华泽遂 | The multidirectional fuel delivery pump of V-type and using method thereof |
| CN107293419A (en) * | 2017-08-29 | 2017-10-24 | 河南机电职业学院 | Breaker |
| RU188640U1 (en) * | 2019-01-09 | 2019-04-18 | Закрытое акционерное общество "Электромагнит" (ЗАО "Электромагнит") | Slide pump |
| CN111878388A (en) * | 2020-09-08 | 2020-11-03 | 青岛大学 | Inner rotor swing scraper pump |
| CN113202747A (en) * | 2021-06-23 | 2021-08-03 | 河南航天液压气动技术有限公司 | Rotary plate pump |
| RU2787620C1 (en) * | 2022-04-25 | 2023-01-11 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Саратовский государственный технический университет имени Гагарина Ю.А." (СГТУ имени Гагарина Ю.А.) | Gate supercharger |
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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: 20130227 Termination date: 20150816 |
|
| EXPY | Termination of patent right or utility model |