CN203114547U - Valve control axial plunger pump - Google Patents
Valve control axial plunger pump Download PDFInfo
- Publication number
- CN203114547U CN203114547U CN 201320059902 CN201320059902U CN203114547U CN 203114547 U CN203114547 U CN 203114547U CN 201320059902 CN201320059902 CN 201320059902 CN 201320059902 U CN201320059902 U CN 201320059902U CN 203114547 U CN203114547 U CN 203114547U
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- plunger
- valve control
- pump
- control axial
- swash plate
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Abstract
The utility model provides a valve control axial plunger pump. The valve control axial plunder pump comprises a pressure cylinder, a plunger inside the pressure cylinder, a main shaft provided with an inclined disc and a pressing disc in a sleeved mode, a pump cover, a medium oil inlet, a medium oil outlet, an annular cavity, and a half-round hole which intersects with the annular cavity, wherein the medium oil inlet and the medium oil outlet are formed in the pump cover , the end portion of the pump cover is provided with the annular cavity which is communicated with the medium oil inlet, an oil inlet one-way valve is installed inside the half-round hole, an annular groove which is communicated with the medium oil outlet is further formed in the pump cover, an oil outlet one-way valve is installed inside the annular groove, and the annular groove is communicated with the pressure cylinder through a flow distributing plate. The oil inlet one-way valve and the oil outlet one-way valve are used for controlling the flow direction of fluid media, and therefore dirt resistant performance of the pump can be improved. At the same time, a novel arranging method is adopted, and therefore the pump is compact in structure, convenient to manufacture, and reliable in use. The bottom portion of the plunger is connected with the inclined disc through a half ball, an abrasion resistant pad, and a flower pun, and therefore the valve control axial plunger pump not only can achieve transmission through contact of faces, but also enables the plunger and the inclined disc not to be prone to being disengaged, and is firm and stable in structure.
Description
Technical field
The utility model relates to the plunger pump technique field, refers to a kind of valve control axial piston pump especially.
Background technique
Axial piston pump is that a plurality of plungers are configured on the circumference of a common cylinder body, and makes its plunger center line parallel with cylinder center line.When cylinder body rotates, by certain mechanism plunger can be done in the plunger hole of cylinder body and do relatively reciprocating motion, realize the function of oil suction and oil extraction by flow-distribution mechanism.
Axial piston pump commonly used at present generally comprises thrust plate, cylinder body, plunger, main shaft and swash plate, and wherein swash plate and oil distribution casing maintain static, main axis rotation, thus the plunger that drives in cylinder body and the cylinder body rotates together.The bulb end of plunger is equipped with piston shoes, and piston shoes are provided with the backhaul dish that rotates with plunger, piston shoes outward, pushes backhaul dish as the central spring that supports by steel ball with cylinder body, and the backhaul dish tightly is pressed in piston shoes on the swash plate, makes the piston shoes bottom keep sealing.When cylinder body rotated, the intake side plunger was pressed in piston shoes on the swash surfaces by central spring, steel ball and backhaul dish and slides and oil suction, and oil extraction lateral column plug relies on swash plate to force to push back and oil extraction.Because piston shoes are adjacent on swash surfaces, plunger is reciprocating in cylinder body in the cylinder body rotation.In the main axis rotation process in one week, each plunger to-and-fro motion is once finished an oil suction and oil extraction.In the said structure, need to arrange return facilities in the cylinder body to finish oil-absorbing process, the complex structure of cylinder body like this, running is loaded down with trivial details.
In addition, existing axial piston pump is shorter general working life, the relatively poor occasion (as the cement plant) of service condition particularly, and working life is shorter, can not satisfy normal requirement.Main cause be plunger and crawler shoe hinged unreliable, adopt the thrust plate flow responsive to dirt; And plunger moves in plunger case, produce stress and concentrate, and is difficult to form film lubrication, causes pump wear out failure soon.
The model utility content
The utility model proposes a kind of valve control axial piston pump, the configuration of in line check valve, fuel-displaced one-way valve make the plunger pump compact structure, easily manufactured, use reliable; In addition, sound construction is reliable, difficult drop-off between swash plate and the plunger.
The technical solution of the utility model is achieved in that a kind of valve control axial piston pump, comprise medium filler opening and medium oil outlet on plunger, the main shaft that is with swash plate and platen, pump cover and the pump cover in pressure cylinder, the pressure cylinder, described pump cover end have the annular chamber that is communicated with the medium filler opening, and with the crossing semicircle orifice of annular chamber, in the described semicircle orifice in line check valve is installed; Also have the circular groove that is communicated with the medium oil outlet on the described pump cover, fuel-displaced one-way valve is installed in the described circular groove, circular groove is communicated with pressure cylinder by port plate.
Wherein, described swash plate and platen together rotate with main shaft, and an end of the close swash plate of described plunger is abutted against hemisphere, and swash plate is by the axial motion of hemisphere drive plunger.
Particularly, described plunger comprises upper stage plunger and the subordinate's plunger that removably connects, and has the hole in the described subordinate plunger, is provided with elastic rod in this hole, and an end of elastic rod is connected with the subordinate plunger, and the other end is connected with upper stage plunger.
Further, be with plunger bushing on the described subordinate plunger.
Further, described subordinate plunger is with upper stage plunger clamping or socket or be threaded.
Further, be provided with wear-resistant pad between described swash plate and the hemisphere.
Further, described wear-resistant pad is fixed by pin and hemisphere.
Compared with prior art, the beneficial effects of the utility model are: control the flow direction of flowing medium by in line check valve, fuel-displaced one-way valve, can improve the stain resistance of pump.Simultaneously, taked a kind of new arrangement, made the pump structure compactness, easily manufactured, use reliable.Hemisphere, wear-resistant pad, swash plate in the bottom of plunger connect by pin, can realize making difficult drop-off between plunger and the swash plate again with the face Contact Transmission, and sound construction is reliable.
In addition, upper stage plunger can radial floating with respect to subordinate's plunger, and upper stage plunger is subjected to the effect of lateral force hardly when work like this, and it is very little to wear and tear, even when subordinate's plunger has bigger wearing and tearing, pump still can proper functioning.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is plane structure schematic representation of the present utility model;
Fig. 2 is the plan view of Fig. 1;
Fig. 3 is the sectional view of plunger in the utility model.
Among the figure: 1, pump cover; 2, fuel-displaced one-way valve; 3, port plate; 4, in line check valve; 5, pressure cylinder; 6, platen; 7, plunger; 8, hemisphere; 9, wear-resistant pad; 10, pin; 11, swash plate; 12, main shaft; 13, medium filler opening; 14, annular chamber; 15, semicircle orifice; 16, circular groove; 17, medium oil outlet; 18, upper stage plunger; 19, subordinate's plunger; 20, elastic rod; 21, plunger bushing.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technological scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
Referring to Fig. 1 to Fig. 3, a kind of valve control axial piston pump comprises medium filler opening 13 and medium oil outlet 17 on plunger 7, the main shaft 12 that is with swash plate 11 and platen 6, pump cover 1 and the pump cover 1 in pressure cylinder 5, the pressure cylinder 5; Also have the circular groove 16 that is communicated with medium oil outlet 17 on the described pump cover 1, fuel-displaced one-way valve 2 is installed in the described circular groove 16, circular groove 16 is communicated with pressure cylinder 5 by port plate 3.This plunger pump liquid body medium enters in the annular chamber 14 by medium filler opening 13, and the spring slit flow that process annular chamber 14 and semicircle orifice 15 intersect is in line check valve 4.Liquid medium in the in line check valve 4 is by port plate 3 feed pressure cylinders 5, under the effect of plunger 7, extrude pressure cylinder 5, the liquid medium of extruder pressure cylinder 5 flows in the circular groove 16 by fuel-displaced one-way valve 2 and flows to medium oil outlet 17 after the collection, thereby reaches the effect of pump.
Wherein, described swash plate 11 and platen 6 together rotate with main shaft 12, and an end of described plunger 7 close swash plates 11 is abutted against hemisphere 8, and swash plate 11 is by 7 axial motions of hemisphere 8 drive plunger.By main shaft 12 input power, make swash plate 11 rotations, swash plate 11 promotes plunger 7 and moves upward by wear-resistant pad 9, hemisphere 8; Plunger 7 arrives atdc, promotes plunger 7 by platen 6 again and moves downward, to realize that plunger 7 moves up and down in pressure cylinder 5.
Concrete, described plunger 7 comprises upper stage plunger 18 and the subordinate's plunger 19 that removably connects, and has the hole in the described subordinate plunger 19, is provided with elastic rod 20 in this hole, and an end of elastic rod 20 is connected with subordinate plunger 19, and the other end is connected with upper stage plunger 18.Upper stage plunger 18 can radial floating with respect to subordinate's plunger 19, and upper stage plunger 18 is subjected to the effect of lateral force hardly when work like this, and it is very little to wear and tear, even when subordinate's plunger 19 has bigger wearing and tearing, pump still can proper functioning.
In order to prevent from wearing and tearing, improving the working life of plunger, be with plunger bushing 21 on subordinate's plunger 19.In the process of running, prevent the wearing and tearing between pressure cylinder 5 and the plunger 7, and the working life of having improved plunger 7 and pressure cylinder 5.
For the ease of connect, operation, subordinate's plunger 19 is with upper stage plunger 18 clampings or socket or be threaded.Upper stage plunger 18 and subordinate's plunger 19 clampings or socket or movable connection the such as be threaded, upper stage plunger 18 is subjected to the effect of lateral force hardly when work like this, and it is very little wear and tear, and Placement is simple, is easy to realization, and processing cost is low.
In addition, be provided with wear-resistant pad 9 between swash plate 11 and the hemisphere 8, reduce the wearing and tearing between swash plate 11 and the hemisphere 8, reduce cost.And wear-resistant pad 9 is fixing with hemisphere 8 by pin 10, is convenient to fix, and is easy to realize that cost is low.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included in protection domain of the present utility model it.
Claims (7)
1. valve control axial piston pump, comprise medium filler opening (13) and medium oil outlet (17) on plunger (7), the main shaft (12) that is with swash plate (11) and platen (6), pump cover (1) and the pump cover (1) in pressure cylinder (5), the pressure cylinder (5), it is characterized in that: described pump cover (1) end have the annular chamber (14) that is communicated with medium filler opening (13), and with the crossing semicircle orifice (15) of annular chamber (14), in line check valve (4) is installed in the described semicircle orifice (15); Also have the circular groove (16) that is communicated with medium oil outlet (17) on the described pump cover (1), fuel-displaced one-way valve (2) is installed in the described circular groove (16), circular groove (16) is communicated with pressure cylinder (5) by port plate (3).
2. valve control axial piston pump according to claim 1, it is characterized in that: described swash plate (11) and the same main shaft of platen (6) (12) together rotate, one end of the close swash plate (11) of described plunger (7) is against there being hemisphere (8), and swash plate (11) is by hemisphere (8) drive plunger (7) axial motion.
3. valve control axial piston pump according to claim 1 and 2, it is characterized in that: described plunger (7) comprises upper stage plunger (18) and the subordinate's plunger (19) that removably connects, have the hole in the described subordinate plunger (19), be provided with elastic rod (20) in this hole, one end of elastic rod (20) is connected with subordinate's plunger (19), and the other end is connected with upper stage plunger (18).
4. valve control axial piston pump according to claim 3 is characterized in that: be with plunger bushing (21) on the described subordinate plunger (19).
5. valve control axial piston pump according to claim 3 is characterized in that: described subordinate plunger (19) is with upper stage plunger (18) clamping or socket or be threaded.
6. valve control axial piston pump according to claim 1 is characterized in that: be provided with wear-resistant pad (9) between described swash plate (11) and the hemisphere (8).
7. according to claim 1 or 6 described valve control axial piston pumps, it is characterized in that: described wear-resistant pad (9) is fixing by pin (10) and hemisphere (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320059902 CN203114547U (en) | 2013-02-01 | 2013-02-01 | Valve control axial plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320059902 CN203114547U (en) | 2013-02-01 | 2013-02-01 | Valve control axial plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203114547U true CN203114547U (en) | 2013-08-07 |
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ID=48894899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320059902 Expired - Fee Related CN203114547U (en) | 2013-02-01 | 2013-02-01 | Valve control axial plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203114547U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930995A (en) * | 2017-05-09 | 2017-07-07 | 太原科技大学 | A kind of compression apparatus for adjusting force of plunger hydraulic element |
| CN107989579A (en) * | 2017-12-27 | 2018-05-04 | 宁波合力机泵股份有限公司 | A kind of vertical plunger oil-well pump power end of latent well formula multi-cylinder |
| CN107989779A (en) * | 2017-12-27 | 2018-05-04 | 宁波合力机泵股份有限公司 | A kind of vertical plunger oil-well pump fluid end of latent well formula multi-cylinder |
| CN108194335A (en) * | 2017-12-27 | 2018-06-22 | 宁波合力机泵股份有限公司 | A kind of latent vertical plunger oil-well pump of well formula multi-cylinder |
| CN112796970A (en) * | 2020-12-30 | 2021-05-14 | 潍柴动力股份有限公司 | Parallel swash plate type axial plunger pump and engineering machinery |
| CN114320806A (en) * | 2022-01-06 | 2022-04-12 | 佛山市液斯源液压制造有限公司 | Hydraulic pump shell and machine core using same |
-
2013
- 2013-02-01 CN CN 201320059902 patent/CN203114547U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930995A (en) * | 2017-05-09 | 2017-07-07 | 太原科技大学 | A kind of compression apparatus for adjusting force of plunger hydraulic element |
| CN106930995B (en) * | 2017-05-09 | 2018-09-25 | 太原科技大学 | A kind of compression apparatus for adjusting force of plunger hydraulic element |
| CN107989579A (en) * | 2017-12-27 | 2018-05-04 | 宁波合力机泵股份有限公司 | A kind of vertical plunger oil-well pump power end of latent well formula multi-cylinder |
| CN107989779A (en) * | 2017-12-27 | 2018-05-04 | 宁波合力机泵股份有限公司 | A kind of vertical plunger oil-well pump fluid end of latent well formula multi-cylinder |
| CN108194335A (en) * | 2017-12-27 | 2018-06-22 | 宁波合力机泵股份有限公司 | A kind of latent vertical plunger oil-well pump of well formula multi-cylinder |
| CN107989579B (en) * | 2017-12-27 | 2024-07-23 | 宁波合力机泵股份有限公司 | Power end of submersible well type multi-cylinder vertical plunger oil pump |
| CN112796970A (en) * | 2020-12-30 | 2021-05-14 | 潍柴动力股份有限公司 | Parallel swash plate type axial plunger pump and engineering machinery |
| CN114320806A (en) * | 2022-01-06 | 2022-04-12 | 佛山市液斯源液压制造有限公司 | Hydraulic pump shell and machine core using same |
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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: 20130807 Termination date: 20150201 |
|
| EXPY | Termination of patent right or utility model |