CN102562509A - Pure water lubrication hydraulic plunger pump - Google Patents
Pure water lubrication hydraulic plunger pump Download PDFInfo
- Publication number
- CN102562509A CN102562509A CN2011104590644A CN201110459064A CN102562509A CN 102562509 A CN102562509 A CN 102562509A CN 2011104590644 A CN2011104590644 A CN 2011104590644A CN 201110459064 A CN201110459064 A CN 201110459064A CN 102562509 A CN102562509 A CN 102562509A
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- end cap
- pure water
- cylinder body
- adjustable lever
- swash plate
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Abstract
The invention discloses a pure water lubrication hydraulic plunger pump relating to the technical field of hydraulics and solving the problem that the flow of the traditional plunger pump cannot be adjusted. The pure water lubrication hydraulic plunger pump in the embodiment of the invention comprises a shell with a through hole and an outer shell composed of two end covers, wherein the through hole is internally provided with a cylinder in which cylinder holes are uniformly distributed according to a circumference array; a retainer plate and a swash plate are sequentially arranged between the cylinder and one of the end covers, and the retainer plate is provided with a plunger shoe assembly inserted to the cylinder holes; and a spherical hinge for matching in installation is arranged between the swash plate and the other end cover, and the shell is provided with an adjusting assembly for adjusting the swash plate to rotate around the spherical hinge and relative to the end cover. The embodiment of the invention is mainly applied to a plunger pump.
Description
Technical field
The present invention relates to the hydraulics field, relate in particular to the lubricated hydraulic planger pump of the pure water that adopts hydraulic principle to realize.
Background technique
Pure water hydraulics drive technology water is as hydraulic medium, for the hydraulic transmission technology that adopts oil lubrication, has advantages such as cleaning, pollution-free, no fire hazard.Along with the development of new material, the pure water hydraulics drive technology begin to relate generally to food, papermaking, weaving, medical apparatus, fire-fighting, metallurgy, etc. industrial application.
The lubricated hydraulic planger pump of pure water is as shown in Figure 1 in the existing technology; This plunger pump comprises the shell that left end cap 6, right end cap 16, housing 7 are formed; Cylinder body 20 is equipped with in cylinder body bearing 21 holes in the shell, is evenly equipped with the cylinder hole of odd number and Boring mill line parallel on the same circumference of cylinder body; Plunger 10 in the plunger piston slippery boots assembly places in the cylinder hole, and cylinder hole and plunger 10 constitute trunk piston set.The end that cylinder body 20 is positioned at right end cap is equipped with thrust button 14 and thrust plate 15; Place an end of the central spring 11 of cylinder body center hole to mould rod 19 through compression thrust button 14 is pressed on the thrust plate 15, thrust plate 15 is fixed on the right end cap 16 through thrust plate pillar 17 and locating stud 18; In addition, central spring 11 the other ends twist 22 through cylinder body 20, cylinder body 20 outer balls, and ball strand 22 outer backhaul dishes 23 are pressed in the piston shoes in each plunger piston slippery boots assembly 9 on the swash plate 8.
The sliding bearing 5 that one end of live axle or output shaft 2 passes left end cap 6 centers inserts cylinder bodies 20 centers, and with cylinder body 20 strong bonded.Each flow overlaps 13 1 ends and correspondingly packs in the cylinder hole; The other end of flow cover 13 is packed on the thrust button 14 in the corresponding hole; Flow overlaps 13 two ends all has rubber seal 12, and thrust button 14 floats with respect to cylinder body 20, all has the water guide groove in sliding bearing 5 and the cylinder body bearing 21.
Live axle or output shaft 2 be through key 1 and external linkage among the figure generally speaking, and live axle or output shaft 2 are fixed on the left end cap 6 with baffle plate 3 through axle envelope 4.
The pump water process of the lubricated hydraulic planger pump of this pure water is following: live axle 2 drives cylinder body 20, thrust button 14, plunger piston slippery boots assembly rotation; Central spring 11 through cylinder body 20, ball strand 22 and backhaul dish 12 with the active force market average to each piston shoes 9, be close to the inclined-plane of swash plate 8 and slide to guarantee piston shoes 9.When plunger 10 moved to limit position left, 14 corresponding openings of thrust button were all hidden by thrust plate 15, formed airtight in the cylinder hole.Rotation along with live axle 2; Piston shoes 9 drive plunger 10 and move right under the promotion of swash plate, make cylinder hole sealed volume reduce, and hydraulic pressure rises; Opening on the thrust button 14 is communicated with the water outlet of thrust plate 15 then; Make the high pressure water in the cylinder hole constantly discharged,, realize pump water process through the buckle arrival delivery side of pump of thrust plate 15 by plunger 10.Certainly, along with being rotated further of live axle 2, plunger 10 is to left movement once more, makes that hydraulic pressure reduces in the cylinder hole, and thrust button 14 upper sheds then can be communicated with the water intake on the thrust plate 15 then, the realization water absorption course.
Along with the rotation of above-mentioned live axle 2, the draining that constantly absorbs water circularly of each cylinder hole, thus pump the continuous high pressure water of flow.
Realizing and using in the process of the lubricated hydraulic planger pump of above-mentioned pure water that the inventor finds to have following problem in the existing technology at least: the water yield that this plunger pump pumps is fixed, and can not adapt to multiple pump water yield demand.
Summary of the invention
The embodiment of the invention provides a kind of pure water to lubricate hydraulic planger pump, can regulate the pump water yield.
For achieving the above object, the present invention adopts following technological scheme:
A kind of pure water lubricates hydraulic planger pump, comprises the housing with through hole, the shells that reach two end caps compositions, is provided with cylinder body in the said through hole, is evenly equipped with the cylinder hole according to circumference array on the said cylinder body; Be provided with backhaul dish and swash plate successively between said cylinder body and one of them end cap, said backhaul dish is provided with the plunger piston slippery boots assembly that inserts in the said cylinder hole;
Be provided with between said swash plate and the end cap and cooperate the spherical linkage of installing, said shell to be provided with the adjusting part that the said swash plate of adjusting rotates around the relative end cap of said spherical linkage.
Said spherical linkage comprises the hemisphere jut that is arranged on the swash plate and is arranged on the bulb-shaped recess on the end cap; Perhaps said spherical linkage comprises the bulb-shaped recess that is arranged on the swash plate and is arranged on the hemisphere jut on the end cap.
Said adjusting part comprises the adjustable lever that passes said shell and be provided with, and an end and the hinged push rod of adjustable lever, and the other end of said push rod and said swash plate are hinged; The said push rod of mobile drive of said adjustable lever makes said swash plate rotate around the relative end cap of said spherical linkage.
Said adjustable lever is installed on the said end cap, said adjustable lever comprise with end bracket enclosed from adjustable lever and reach the outside homophony pole of end cap; Said homophony pole promotes said from adjustable lever, and with end cap between adopt and be threaded;
Perhaps said adjustable lever is installed on the said end cap, and said adjustable lever and end cap are provided with Sealing, and adopts between said adjustable lever and the end cap and be threaded;
Perhaps said adjustable lever is installed on the housing, is provided with Sealing between said adjustable lever and the housing, and adopts between said adjustable lever and the housing and be threaded.
Said housing is provided with the limited post of the said swash plate of conflicting, and said swash plate is provided with the groove of said limited post institute screens.
Said bottom portion of groove is and the identical convex globoidal of the said spherical linkage centre of sphere that the end face of said limited post is the concave arc surface that is complementary with said convex globoidal.
Be provided with thrust button and thrust plate successively between said cylinder body and another end cap, said thrust plate is fixed on this end cap, and said another end cap is provided with intake-outlet, and the corresponding said intake-outlet of said thrust button and thrust plate is provided with perforation.
Said cylinder body is provided with center hole, and is provided with in the said center hole said thrust button is pressed in the elastic component on the said thrust plate.
Said cylinder body is provided with the ball pivot that said backhaul dish is installed; Said ball strand is one-body molded with said cylinder body, and perhaps said ball strand is provided with said cylinder body split.
Said cylinder body is provided with driving or the output shaft that passes end cap; Said driving or output shaft and said cylinder body are one-body molded, and perhaps said driving or output shaft and said cylinder body split are provided with.
The pure water that the embodiment of the invention provides lubricates hydraulic planger pump; Cooperate the spherical linkage of installing owing between swash plate and end cap, be provided with; Make swash plate to rotate, and on shell, be provided with the adjusting part that the said swash plate of adjusting rotates around the relative end cap of said spherical linkage around end cap.When the pure water that uses the embodiment of the invention to provide lubricates hydraulic planger pump; Only need to regulate swash plate through adjusting part; Make the gradient of swash plate change; Just can be so that the stroke of plunger piston slippery boots assembly in the cylinder hole change, the gradient of swash plate is big more in general, and plunger piston slippery boots assembly is also just big more at the stroke in cylinder hole; The pump water yield of the lubricated hydraulic planger pump of this pure water is also just big more, the stroke in the embodiment of the invention be meant plunger piston slippery boots assembly in the cylinder hole from a limit position to the distance another limit position.So can regulate the pump water yield after the employing embodiment of the invention, make it adapt to the occasion of various demands of different.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention 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; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, 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 a plunger pump structure schematic representation in the existing technology;
Fig. 2 is the partial sectional view of plunger pump in the embodiment of the invention;
Fig. 3 is the sectional view of embodiment of the invention swash plate;
Fig. 4 is the plan view of end cap in the embodiment of the invention;
Fig. 5 be among Fig. 4 B-B to sectional view;
Fig. 6 be among Fig. 4 A-A to sectional view;
Fig. 7 is a plunger pump sectional arrangement drawing in the embodiment of the invention;
Fig. 8 is the part sectional view of dismantling of plunger pump in the embodiment of the invention.
Reference character:
30 housings, 31 through holes
32 limited posts, 40 end caps
41 bulb-shaped recess, 42 mounting holes
50 cylinder bodies, 51 cylinder holes
52 ball pivots 53 drive or output shaft
60 backhaul dishes, 70 swash plates
71 hemisphere juts, 72 grooves
80 plunger piston slippery boots assemblies, 90 adjusting parts
91 adjustable levers, 92 push rods
911 from adjustable lever 912 homophony poles
100 center holes, 101 thrust buttons
102 thrust plates, 103 springs
104 plastic rods
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technological scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiments.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment who is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
The embodiment of the invention provides a kind of pure water to lubricate hydraulic planger pump; Like Fig. 2 and shown in Figure 8; This plunger pump comprises the housing 30 with through hole 31, the shells that reach two end caps, 40 compositions, is provided with cylinder body 50 in the said through hole 31, and this cylinder body 50 can rotate in through hole 31; And be evenly equipped with cylinder hole 51 according to circumference array on the cylinder body 50, expressed part cylinder hole among the figure; Realize pump water for utilizing this cylinder hole 51; The embodiment of the invention is provided with backhaul dish 60 and swash plate 70 successively between cylinder body 50 and one of them end cap 40; Said backhaul dish 60 is provided with the plunger piston slippery boots assembly 80 that inserts in the said cylinder hole; Because swash plate 70 exists to tilt, this plunger piston slippery boots assembly 80 is along with the rotation of backhaul dish can be so that plunger piston slippery boots assembly 80 be done the piston motion in cylinder hole 51; The distance of plunger piston slippery boots assembly 80 between two limit positions of cylinder hole inner carrier motion is called a stroke, utilizes this stroke can be so that the air pressure the cylinder hole in changes, thereby realizes absorbing water and the process of draining.Utilize on the cylinder body circumference draining that constantly absorbs water circularly of a plurality of cylinders hole, thereby realize pump water continuously.
In order to regulate the pump water yield of the lubricated hydraulic planger pump of pure water; As shown in Figure 2; The embodiment of the invention is provided with between swash plate 70 and end cap 40 and cooperates the spherical linkage of installing, and on shell, is provided with the adjusting part 90 that the said swash plate of adjusting rotates around the relative end cap of said spherical linkage.Adopt after the embodiment of the invention; Only need to regulate swash plate through adjusting part 90; Make the gradient of swash plate 70 change, just can be so that the stroke of plunger piston slippery boots assembly in the cylinder hole change, the gradient of swash plate is big more in general; Plunger piston slippery boots assembly is also just big more at the stroke in cylinder hole, and the pump water yield of the lubricated hydraulic planger pump of this pure water is also just big more.So can regulate the pump water yield after the employing embodiment of the invention, make it adapt to the occasion of various demands of different.
Spherical linkage in the embodiment of the invention can adopt the mode shown in Fig. 3, Fig. 4 and Fig. 5; Be specially hemisphere jut 71 is set on swash plate 70; Bulb-shaped recess 41 is set on end cap 40; Under the effect of adjusting part 90, this hemisphere jut 71 can rotate around the centre of sphere of bulb-shaped recess 41, makes the gradient of swash plate 70 change; And the friction pair between this hemisphere jut 71 and the bulb-shaped recess 41 can adopt reinforced plastic, makes it can be applicable to the pure water lubrication system.
Certainly, the spherical linkage in the embodiment of the invention also can be provided with bulb-shaped recess on swash plate, hemisphere jut is set on end cap, and its friction pair also can adopt reinforced plastic, repeats no more here.
As shown in Figure 2; Adjusting part in the embodiment of the invention can adopt but be not limited to following scheme: this adjusting part 90 comprises the adjustable lever 91 that passes said shell and be provided with, and the hinged push rod 92 of an end and adjustable lever 91, and the shell here can be that housing 30 also can be an end cap 40; As shown in Figure 2, the other end of push rod 92 and swash plate 70 are hinged; Making under the situation that adjustable lever 91 produces; Can drive said push rod 92 rotates; The rotation of push rod 92 can realize the adjusting of swash plate gradient so that said swash plate 70 rotates around the relative end cap of said spherical linkage, thereby the pump water yield that realizes the lubricated hydraulic planger pump of pure water is regulated.
Adjustable lever can adopt but is not limited to following scheme in the embodiment of the invention:
The first, adjustable lever sealing is installed on the housing, is provided with Sealing between said adjustable lever and the housing, and adopt between said adjustable lever and the housing and be threaded.
The second, adjustable lever is installed on the end cap; So the mounting hole 42 that supplies this adjustable lever to pass need be set on the end cap; Specifically as shown in Figure 6; The implementation that specifically is installed on the end cap is as shown in Figure 2, and this adjustable lever 91 is divided into and can be divided into two sections settings, specifically comprise with end bracket enclosed from adjustable lever 911 and reach the outside homophony pole 912 of end cap; Said homophony pole 912 promotes said from adjustable lever 911, and with end cap 40 between adopt and be threaded.
Three, adjustable lever is installed on the end cap, said adjustable lever and end cap are provided with Sealing, and adopt between said adjustable lever and the end cap and be threaded, and are equivalent to being wholely set from adjustable lever and homophony pole among Fig. 2.
In order to guarantee the more accurately position of swash plate in rotation process; As shown in Figure 2; The embodiment of the invention is provided with the limited post 32 of the said swash plate 70 of conflicting on housing 30, and on swash plate 70, is provided with the groove 72 of said limited post institute screens, is stuck in the groove 72 through limited post 32; Make swash plate 70 Displacement error radially in rotation process, can not occur; Thereby guarantee the proper functioning of the lubricated hydraulic planger pump of pure water, with reference to shown in Figure 2, limited post 32 can adopt nut seal to be fixed on the housing 30.
Because swash plate is to take exercises around sphere in the embodiment of the invention; In order to make limited post can play position-limiting action all the time; The convex globoidal identical with the spherical linkage centre of sphere adopted in embodiment of the invention further groove 72 bottoms, and the end face of said limited post 32 is the concave arc surface that is complementary with said convex globoidal.
As shown in Figure 2; The embodiment of the invention is provided with the ball pivot 52 that said backhaul dish 60 is installed on cylinder body 50; Ball strand 52 can adopt among Fig. 2 and said cylinder body 50 integrated structures, and the structure that yet can adopt said cylinder body split to be provided with, the embodiment of the invention are not done clearly and limited.In addition, the friction pair in the embodiment of the invention between backhaul dish and the ball strand can adopt reinforced plastic, makes it can be applicable to the pure water lubrication system.
As shown in Figure 2, the embodiment of the invention is provided with driving or the output shaft 53 that passes end cap 40 on cylinder body 50; Equally, driving in the embodiment of the invention or output shaft 53 can adopt among Fig. 2 and cylinder body 50 integrated structures, also can adopt the structure that is provided with said cylinder body split.And, drive in the embodiment of the invention or end cap that output shaft passed on bearing need be set so that installing drive or output shaft.
Can adopt usual plunger pump design in the embodiment of the invention between cylinder body and another end cap; Also can adopt following design proposal: be provided with thrust button and thrust plate successively at cylinder body and another end cap; Not shown; And thrust plate is fixed on this end cap through corresponding structure, generally adopts the means of fixation of fixing pin more; The embodiment of the invention is provided with intake-outlet at above-mentioned another end cap, and the corresponding said intake-outlet of thrust button and thrust plate is provided with perforation, and the form of concrete perforation generally adopts the perforation of waist shape.
In addition; Like Fig. 7 and shown in Figure 8; The embodiment of the invention is provided with center hole 100 on cylinder body, and is provided with in the said center hole 100 said thrust button 101 is pressed in the elastic component on the said thrust plate 102, and this elastic component generally comprises spring 103 and plastic rod 104; Through this elastic component can also be to make plunger piston slippery boots assembly in the cylinder hole can keep 80 to contact with backhaul dish 60.Certainly adopt the direct backhaul dish of plunger piston slippery boots assembly means of fixation to keep in touch, specifically as shown in Figure 2, this plunger piston slippery boots assembly directly is fixedly mounted in the through hole of backhaul dish.
Certainly, can be applicable to the pure water lubrication system in order to guarantee the plunger pump that the embodiment of the invention provides, all rubbing surfaces adopt reinforced plastic in the embodiment of the invention.
The pump water process of the lubricated hydraulic planger pump of the pure water that the embodiment of the invention provides is following: like Fig. 7 and shown in Figure 8; Live axle drive cylinder body, thrust button, plunger piston slippery boots assembly rotate together; Because plunger piston slippery boots assembly fixes with the backhaul dish always, and backhaul dish and swash plate be adjacent to each other, so in rotation process; Plunger piston slippery boots assembly will can move reciprocatingly in the cylinder hole, be similar to piston motion.
With Fig. 2 orientation is reference, and when plunger piston slippery boots assembly moves to rightmost limit position, the waist shape perforation on the thrust button will be blocked by thrust plate; Cylinder forms sealing configuration in the hole, and along with being rotated further of live axle, plunger piston slippery boots assembly will be to left movement; Make that sealed volume reduces in the cylinder hole; Make the hydraulic pressure in the cylinder hole raise, the waist shape perforation on the thrust button at this moment will be communicated with the waist shape perforation on the thrust plate, and is communicated to the water outlet on the end cap always; Thereby make the water in the cylinder hole be excluded, realize drainage procedure.
When plunger piston slippery boots assembly arrived leftmost position in firm hole after, along with being rotated further of live axle, plunger piston slippery boots assembly moved right beginning; The cylinder pore volume will increase; Make hydraulic pressure reduce, the water of water inlet will get into the cylinder hole on the end cap, realize water absorption course.
Each cylinder hole is according to the draining that constantly absorbs water of above-mentioned flow process in the cylinder body, thereby pumps the continuous high pressure water of flow.
Certainly, when adopting the embodiment of the invention to provide the lubricated hydraulic planger pump of pure water to use as motor, its concrete working procedure is the inverse process of pump water process, repeats no more here.
The embodiment of the invention mainly applies to plunger pump, especially applies to the lubricated hydraulic planger pump of pure water.
The above; Be merely embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technician who is familiar with the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (10)
1. the lubricated hydraulic planger pump of pure water comprises the housing with through hole, the shells that reach two end caps compositions, is provided with cylinder body in the said through hole, is evenly equipped with the cylinder hole according to circumference array on the said cylinder body; Be provided with backhaul dish and swash plate successively between said cylinder body and one of them end cap, said backhaul dish is provided with the plunger piston slippery boots assembly that inserts in the said cylinder hole;
It is characterized in that, be provided with the spherical linkage that cooperates installation between said swash plate and the end cap, said shell is provided with regulates the adjusting part that said swash plate rotates around the relative end cap of said spherical linkage.
2. pure water according to claim 1 lubricates hydraulic planger pump, it is characterized in that, said spherical linkage comprises the hemisphere jut that is arranged on the swash plate and is arranged on the bulb-shaped recess on the end cap; Perhaps said spherical linkage comprises the bulb-shaped recess that is arranged on the swash plate and is arranged on the hemisphere jut on the end cap.
3. pure water according to claim 1 lubricates hydraulic planger pump, it is characterized in that, said adjusting part comprises the adjustable lever that passes said shell and be provided with, and an end and the hinged push rod of adjustable lever, and the other end of said push rod and said swash plate are hinged; The said push rod of mobile drive of said adjustable lever makes said swash plate rotate around the relative end cap of said spherical linkage.
4. pure water according to claim 3 lubricates hydraulic planger pump, it is characterized in that:
Said adjustable lever is installed on the said end cap, said adjustable lever comprise with end bracket enclosed from adjustable lever and reach the outside homophony pole of end cap; Said homophony pole promotes said from adjustable lever, and with end cap between adopt and be threaded;
Perhaps said adjustable lever is installed on the said end cap, and said adjustable lever and end cap are provided with Sealing, and adopts between said adjustable lever and the end cap and be threaded;
Perhaps said adjustable lever is installed on the housing, is provided with Sealing between said adjustable lever and the housing, and adopts between said adjustable lever and the housing and be threaded.
5. pure water according to claim 1 lubricates hydraulic planger pump, it is characterized in that said housing is provided with the limited post of the said swash plate of conflicting, and said swash plate is provided with the groove of said limited post institute screens.
6. pure water according to claim 5 lubricates hydraulic planger pump, it is characterized in that, said bottom portion of groove is and the identical convex globoidal of the said spherical linkage centre of sphere that the end face of said limited post is the concave arc surface that is complementary with said convex globoidal.
7. according to the lubricated hydraulic planger pump of any described pure water of claim 1 to 6; It is characterized in that; Be provided with thrust button and thrust plate successively between said cylinder body and another end cap; Said thrust plate is fixed on this end cap, and said another end cap is provided with intake-outlet, and the corresponding said intake-outlet of said thrust button and thrust plate is provided with perforation.
8. pure water according to claim 7 lubricates hydraulic planger pump, it is characterized in that said cylinder body is provided with center hole, and is provided with in the said center hole said thrust button is pressed in the elastic component on the said thrust plate.
9. according to the lubricated hydraulic planger pump of any described pure water of claim 1 to 6, it is characterized in that said cylinder body is provided with the ball pivot that said backhaul dish is installed; Said ball strand is one-body molded with said cylinder body, and perhaps said ball strand is provided with said cylinder body split.
10. according to the lubricated hydraulic planger pump of any described pure water of claim 1 to 6, it is characterized in that said cylinder body is provided with driving or the output shaft that passes end cap; Said driving or output shaft and said cylinder body are one-body molded, and perhaps said driving or output shaft and said cylinder body split are provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104590644A CN102562509A (en) | 2011-12-26 | 2011-12-26 | Pure water lubrication hydraulic plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104590644A CN102562509A (en) | 2011-12-26 | 2011-12-26 | Pure water lubrication hydraulic plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102562509A true CN102562509A (en) | 2012-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104590644A Pending CN102562509A (en) | 2011-12-26 | 2011-12-26 | Pure water lubrication hydraulic plunger pump |
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| Country | Link |
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| CN (1) | CN102562509A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736274A (en) * | 2016-02-24 | 2016-07-06 | 湖北仁创科技有限公司 | Water hydraulic axial plunger pump provided with pressure-limiting and overflow device |
| WO2016112763A1 (en) * | 2015-01-15 | 2016-07-21 | 沃尔科技有限公司 | Water-lubricated high-pressure plunger pump and handheld high-pressure jet apparatus |
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|---|---|---|---|---|
| GB185295A (en) * | 1921-07-25 | 1922-09-07 | Arthur Bollinckx | Pump of variable capacity |
| JPH09209920A (en) * | 1996-02-05 | 1997-08-12 | Hitachi Ltd | Variable displacement swash plate type hydraulic machine, and static hydraulic pressure transmission device |
| EP0985094B1 (en) * | 1997-05-28 | 2002-10-23 | Vickers Incorporated | Adjustable stop for variable displacement pumps |
| CN1554869A (en) * | 2003-12-26 | 2004-12-15 | 浙江大学 | Fully water lubricating and end flow distributing pure water hydraulic axial plunger pump or motor |
| CN2695672Y (en) * | 2004-01-08 | 2005-04-27 | 启东高压油泵有限公司 | Small displacement manual variable axial plunger pump |
| JP2009013940A (en) * | 2007-07-09 | 2009-01-22 | Nachi Fujikoshi Corp | Swash plate type hydraulic pump |
| CN201679660U (en) * | 2010-03-12 | 2010-12-22 | 北京华德液压工业集团有限责任公司 | Limit arc-shaped slide rail wobble plate straight shaft plunger pump |
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2011
- 2011-12-26 CN CN2011104590644A patent/CN102562509A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB185295A (en) * | 1921-07-25 | 1922-09-07 | Arthur Bollinckx | Pump of variable capacity |
| JPH09209920A (en) * | 1996-02-05 | 1997-08-12 | Hitachi Ltd | Variable displacement swash plate type hydraulic machine, and static hydraulic pressure transmission device |
| EP0985094B1 (en) * | 1997-05-28 | 2002-10-23 | Vickers Incorporated | Adjustable stop for variable displacement pumps |
| CN1554869A (en) * | 2003-12-26 | 2004-12-15 | 浙江大学 | Fully water lubricating and end flow distributing pure water hydraulic axial plunger pump or motor |
| CN2695672Y (en) * | 2004-01-08 | 2005-04-27 | 启东高压油泵有限公司 | Small displacement manual variable axial plunger pump |
| JP2009013940A (en) * | 2007-07-09 | 2009-01-22 | Nachi Fujikoshi Corp | Swash plate type hydraulic pump |
| CN201679660U (en) * | 2010-03-12 | 2010-12-22 | 北京华德液压工业集团有限责任公司 | Limit arc-shaped slide rail wobble plate straight shaft plunger pump |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016112763A1 (en) * | 2015-01-15 | 2016-07-21 | 沃尔科技有限公司 | Water-lubricated high-pressure plunger pump and handheld high-pressure jet apparatus |
| CN105736274A (en) * | 2016-02-24 | 2016-07-06 | 湖北仁创科技有限公司 | Water hydraulic axial plunger pump provided with pressure-limiting and overflow device |
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