CN206092303U - floating type two-dimensional duplex piston pump - Google Patents
floating type two-dimensional duplex piston pump Download PDFInfo
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- CN206092303U CN206092303U CN201621022136.3U CN201621022136U CN206092303U CN 206092303 U CN206092303 U CN 206092303U CN 201621022136 U CN201621022136 U CN 201621022136U CN 206092303 U CN206092303 U CN 206092303U
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- 230000033001 locomotion Effects 0.000 claims abstract description 19
- 230000008859 change Effects 0.000 claims abstract description 9
- 230000008878 coupling Effects 0.000 claims description 55
- 238000010168 coupling process Methods 0.000 claims description 55
- 238000005859 coupling reaction Methods 0.000 claims description 55
- 238000004132 cross linking Methods 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 10
- 238000003780 insertion Methods 0.000 claims description 8
- 230000037431 insertion Effects 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 6
- 230000001050 lubricating effect Effects 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 12
- 238000013461 design Methods 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000010349 pulsation Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
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- Reciprocating Pumps (AREA)
Abstract
The utility model discloses a floating two-dimensional duplex piston pump, which comprises a pump body, wherein an oil suction port and an oil discharge port are arranged on the pump body, a pump unit is arranged in the pump body, the pump unit comprises two cylinder bodies fixed in the pump body, pistons are arranged in the two cylinder bodies on the left and right of the two cylinder bodies, and the two pistons are linked with each other; the central axis of the cylinder body is coincided with the central axis of the piston, both ends of the piston are provided with moving components for driving the piston to move axially so as to cause the volume change of the working chamber, and the moving directions of the moving components at both ends of the piston for driving the piston to move are opposite; the cylinder body, the piston and the moving components on two sides form a pump unit, the upper unit of the pump is close to the front end cover, and the lower unit of the pump is close to the rear end cover. The utility model discloses utilize the rotation of piston and gliding two degree of freedom structure to replace traditional circumference plunger pump join in marriage food tray structure, realize inhaling the oil discharge function in succession to adopt the pair mode, the rotatory a week of piston, reciprocating motion is 4 times, inhales oil discharge each 8 times, 4 times more than the monobloc piston pump.
Description
Technical field
This utility model is related to a kind of float type two dimension double crosslinking piston pump, belongs to Fluid-transmission and the hydraulic pressure in control field
Pump and hydraulic motor.
Background technology
Plunger (piston) pump plunger (piston) and cylinder body are used as groundwork component.When plunger (piston) is in cylinder body
When reciprocating in plunger (piston) hole, there is volume and become in the closed swept volume chamber being made up of plunger (piston) and cylinder body
Change, complete suction, discharge opeing process.According to different spread patterns of the plunger (piston) in cylinder body, plunger (piston) pump is divided into radially
Formula and the big class of axial type two.
Common axial plunger (piston) pump of tradition is moved back and forth by plunger (piston) in cylinder body, holds seal operation
Chamber volume changes to realize inhaling, press oil.The part of internal relative motion is more, high to Material texture, requirement on machining accuracy, right
Oil contamination is sensitive, processing, the requirement for using, safeguarding and relatively costly, expensive；Cylinder body is rotated with power transmission shaft, is turned
Dynamic inertia is big, cause to start, stop, the response speed of speed governing it is slow, be unfavorable for the output flow come controlling pump by speed governing；Cylinder body
Internal friction pair is more, and under high-speed rotation, cylinder body temperature rise is very fast, and the abrasion of the part such as valve plate, plunger (piston) directly affects pump
Service life and durability.In addition, due to the restriction of plunger (piston) pump operation principle itself, drive axis one
Week, each plunger (piston) can only realize an oil suction and an oil extraction, and its discharge capacity is restricted, and needs independent design to match somebody with somebody
The switching oily to complete working volumes suction of stream mechanism.
Axle and piston integrated design are greatly simplified overall structure by two-dimentional piston pump, and using piston double freedom
Motion principle realize continuous suction oil, this structure instead of the port plate structure of conventional axial plunger displacement pump, small volume, weight
Gently, simple, easy speed governing, discharge capacity height are driven, are moved back and forth once, more than conventional axial piston pump once, and efficiency high.
The content of the invention
For the drawbacks described above for overcoming axial plunger pump to exist, this utility model provides a kind of simple structure, small volume, weight
Measure the big float type two dimension double crosslinking piston pump of light, efficiency high, discharge capacity.
The technical solution adopted in the utility model is：
Float type two dimension double crosslinking piston pump, including the pump housing, are provided with inlet port and oil drain out on the pump housing, pump list is provided with the pump housing
Unit, it is characterised in that：
Pump unit includes being fixed on two cylinder bodies in the pump housing, and in two cylinder bodies or so, two cylinder bodies of arrangement work is equipped with
Fill in, and two-piston mutually links；The central shaft of cylinder body and the center overlapping of axles of piston, the two ends of piston are equipped with driving piston shaft
To the mobile moving link to cause working chamber volume to change, and the moving link at piston two ends is moved when driving piston movement
It is in opposite direction；
The moving link of described cylinder body, piston and both sides constitutes the one of pump, near the first line of a couplet for pump of drive end bearing bracket,
Near the second line of a couplet for pump of rear end cap；
Work chamber includes the left chamber positioned at cylinder body two ends and right chamber room respectively, and the both sides of piston are furnished with annular cylinder
Boss, is furnished with the manhole of insertion annular cylinder boss, and side annular cylinder boss on annular cylinder boss
The U-type groove of insertion annular cylinder boss is furnished with, U-type groove circumferentially differs 90 degree with the position of manhole；Outside piston
Surface is furnished with two cannelures, and the intermediate arrangement of cannelure has the guide rail in a round boss, round boss and left side by cylinder body
Chamber enclosure into closed left chamber, round boss and right side guide rail by the into closed right chamber room of inner chamber of cylinder block enclosure；It is circular convex
Platform is provided with two axisymmetric left axial grooves and two axisymmetric right axial grooves, and left axial groove and right axial groove are in piston
Cross section circumference on be equidistantly arranged alternately；Left axial groove is connected with left chamber, right axial groove and right chamber；Cylinder body
Be provided with two axisymmetric left windows and two axisymmetric right windows, the left window connected with described oil drain out and with institute
Projection of the right window of the inlet port connection stated on the cross section of cylinder body is equidistantly alternately distributed along the circumference of cylinder body；
Axial symmetry is referred to the substantially symmetrical about its central axis of piston；The direction that the central shaft of piston is located axially is referred to, is radially referred to
The direction that the diameter in piston cross-section face is located；
Moving link includes guide rail and roller, and guide rail is fixed on the end of cylinder body, and piston runs through guide rail, and the outer end of piston
End is provided with roller shaft, and the inner end of piston is provided with shaft coupling, a pair axisymmetric rollings are all connected with roller shaft and shaft coupling
Wheel；Guide rail is in the ring-type curved surface of axial direction, and fluctuating of the curved surface with axial direction, guide rail is in circular, institute in the projection of central axis direction
The curved surface stated has 2 peaks and 2 minimum points, and described highs and lows are respectively positioned at orthogonal the two of annulus
Diametrically, described curved surface is respectively in accordance with two described diameter symmetries for bar；Roller is rolled on guide rail, promotes piston vertically
It is mobile；The rolling surface of described roller is adapted to guide rail；
The outer end of piston refers to piston near drive end bearing bracket or one end of rear end cap, and the inner of piston refers to piston away from front end
One end of lid or rear end cap；
It is mutually anti-phase positioned at the waveform that the curved surface of the guide rail at piston two ends rises and falls；
The waveform of the curved surface of guide rail has following corresponding with the position of left axial groove and right axial groove, left window and right window
Relation：First stage guide rail and idler wheel driving piston move right, and left axial groove is directed at left window, and left chamber sucks liquid, together
When right axial groove be directed at right window, right chamber room excludes liquid；Second stage guide rail and idler wheel driving piston are moved to the left, left axle to
Groove is directed at right window, and left chamber excludes liquid, while right axial groove alignment left window, right chamber room suction liquid；
Shaft coupling in drive end bearing bracket is coaxially connected with the output shaft of motor, is driven by the moving link at piston two ends
Piston movement；
Rear end cap is square, and side is furnished with up and down location hole and a manhole, and location hole is to place bearing pin and and pump
Body is fixedly connected, and rear end cap is equipped with a sealing ring on the contact surface of cylinder body side and the pump housing, and has the circle that fluid circulates to lead to
Sealing ring is put on hole；
The forward and backward end cap and guide rail of the pump housing is by pump housing inner chamber enclosure into closed lubricating cavity.
Further, described left window and right window are located at the diverse location of central shaft.
Further, described drive end bearing bracket is square, and left side is evenly equipped with four circular holes, and it is fixed that right side is furnished with symmetrical four
Position hole, location hole is to place bearing pin and be connected with the pump housing, and inner surface is furnished with centre bore and a circular big groove, circular big recessed
Moving link is placed in groove；Shaft coupling outside socket rubber oil sea and deep groove ball bearing, are placed in the centre bore of drive end bearing bracket；Shaft coupling
The side of device is furnished with cylinder boss, and opposite side is furnished with rectangular boss, and the upper and lower front and rear surfaces of rectangular boss are furnished with U-shaped groove, and U-shaped is recessed
Groove is equipped with a sealing ring completely through rectangular boss, described drive end bearing bracket near the contact surface of cylinder body side and the pump housing.
Further, described moving link is distributed in the moving link connected between the both sides of cylinder body, and two cylinder bodies and leads to
Cross driving lever to be connected.
Further, the upper and lower sides of shaft coupling are cylinder, are socketed two rollers, and match somebody with somebody with the conical camber gap of guide rail
Close.
Further, two left windows are by the first annular groove connection on cylinder body, and two right windows are by the on cylinder body
Second ring groove is connected.
Further, described cylinder body carried out with four symmetrical bearing pins with guide rail it is circumferentially fixed, according to left in cylinder body
The pressure change of right chamber room, cylinder body can axially float with guide rail.
Further, the roller shaft and shaft coupling at described piston two ends is socketed with piston with bearing pin, roller shaft and shaft coupling
Section can circumferentially float respectively around bearing pin, i.e., the roller at two ends can swing.
The utility model proposes axle and piston integrated design, simplify structure, using the rotation of piston and the double of slip from
The oil distribution casing structure of tradition circumference plunger displacement pump is replaced by degree structure, continuous suction oil function is realized, and using duplex mode, it is living
Plug rotates a circle, and moves back and forth 4 times, and suction oil is each 8 times, many 4 times compared with single piston pump.
The beneficial effects of the utility model are embodied in：
1st, it is in 45 degree of phase angles between piston using duplex mode, flow pulsation and pressure fluctuation are eliminated.
2nd, piston inner structure is through hole, as the spiracle of fluid, communicates cylinder body or so chamber fluid so that piston is not
In disconnected rotation and sliding process, the oil liquid pressure of the cylinder body left and right sides is identical, piston is slided and does not result in impact, and motor is turned round
The demand of square also diminishes.
3rd, guide rail and roller contact face are conical camber, are contacted with idler wheel surface, and reduction roller rubs with guide rail conical camber
Wear consumption.
4th, the window openings of sizes summation of cylinder body and piston remains certain, eliminates flow pulsation.
5th, roller shaft and piston are connected with bearing pin so that roller shaft can be swung centered on the periphery of bearing pin,
The guide rail so that upper and lower ends roller is preferably fitted, compensates the height error of the guide rail plane of symmetry, overcomes the height due to guide surface
Low error makes roller stuck or fails, and vibrates in cylinder body.
6th, guide rail and cylinder body are circumferentially fixed by pin, and the pressure change in cylinder body causes guide rail direct acting to swing, and makes roller
The curved surface that can be fitted on guide rail, compensates the mismachining tolerance of guide surface size quantity, overcomes the mismachining tolerance of whole pump size quantity.
Description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of pump unit.
Fig. 3 is the structural representation of this utility model drive end bearing bracket.
Fig. 4 is the structural representation of this utility model rear end cap.
Fig. 5 a, 5b, 5c are the structural representation of this utility model pump housing.
Fig. 6 is the exploded perspective view that this utility model cylinder body is connected with guide rail.
Fig. 7 a are the explosive view of the moving link connected between the cylinder body of this utility model two.
Fig. 7 b are the structural representation of the moving link connected between the cylinder body of this utility model two.
Fig. 8 is that this utility model piston outer end is illustrated near the moving link of drive end bearing bracket and the blast being connected with drive end bearing bracket
Figure.
Fig. 9 is exploded perspective view of this utility model piston outer end near the moving link of rear end cap.
Figure 10 is this utility model piston structure schematic diagram A.
Figure 11 is this utility model housing structure schematic diagram.
Figure 12 is this utility model roller shaft structural representation.
Figure 13 is this utility model coupler structure schematic diagram.
Figure 14 is this utility model piston structure schematic diagram B.
Figure 15 is this utility model roller structure schematic diagram.
Figure 16 is this utility model guide rail structure schematic diagram.
Figure 17 is this utility model left side shaft coupling structure schematic diagram.
Figure 18 is this utility model right side shaft coupling structure schematic diagram.
Figure 19 a are this utility model piston gap schematic diagram.
Figure 19 b are the Section A-A figure in Figure 19 a.
Figure 20 a are this utility model cylinder body opening schematic diagram.
Figure 20 b are section B-B figure in Figure 20 a.
Figure 21 a be this utility model piston movement to high order end when, groove a, b, c, the d on piston not with cylinder body on window
Mouth e, f, g, h occur to link up schematic diagram.
Figure 21 b are the C-C sectional views in Figure 21 a.
Figure 22 a be this utility model piston rotation and toward right-hand member start movement, groove a, b, c, the d on piston respectively with cylinder
The schematic diagram that window e, f, g, h on body is linked up.
Figure 22 b are the D-D sectional views in Figure 22 a.
Specific embodiment
Referring to figs. 1 to Figure 22 b, float type two dimension double crosslinking piston pump, including the pump housing 2 are provided with inlet port and oil extraction on the pump housing 2
Mouthful, it is provided with pump unit in the pump housing 1, it is characterised in that：
Pump unit includes two cylinder bodies 4,10 being fixed in the pump housing, and two cylinder bodies 4,10 or so are arranged in two cylinder bodies
Piston 15,11 is provided with, and two-piston mutually links；The central shaft of cylinder body and the center overlapping of axles of piston, the two ends of piston are all provided with
Have and drive piston to move axially the moving link to cause working chamber volume to change, and piston two ends when driving piston movement
The moving link direction of motion is contrary；
Work chamber includes being located at cylinder body 4, the left chamber at 10 two ends and right chamber room respectively, and the both sides of piston are furnished with annular
Cylinder boss, is furnished with the manhole of insertion annular cylinder boss on annular cylinder boss, and side annular cylinder is convex
The U-type groove of insertion annular cylinder boss is furnished with platform, U-type groove circumferentially differs 90 degree with the position of manhole；Piston
Outer surface be furnished with two cannelures, the intermediate arrangement of cannelure has the guide rail 3,7 in a round boss, round boss and left side will
Inner chamber of cylinder block enclosure into closed left chamber, round boss and right side guide rail 5,8 by the into closed right chamber of inner chamber of cylinder block enclosure
Room；Round boss is provided with two axisymmetric left axial groove b, d and two axisymmetric right axial groove a, c, and left axial groove
B, d and right axial groove a, c are equidistantly arranged alternately on the circumference of the cross section of piston；Left axial groove b, d are connected with left chamber,
Right axial groove a, c and right chamber；Cylinder body 4,10 is provided with two axisymmetric left window f, h and two axisymmetric right windows
Mouthful e, g, the left window connected with described oil drain out and the right window that connects with described inlet port are on the cross section of cylinder body
Projection be equidistantly alternately distributed along the circumference of cylinder body；
Axial symmetry is referred to the substantially symmetrical about its central axis of piston；The direction that the central shaft of piston is located axially is referred to, is radially referred to
The direction that the diameter in piston cross-section face is located；
Moving link includes guide rail 3,5,7,8 and roller 6,14,17,21,60,48,81,91, and guide rail is fixed on cylinder body
End, piston runs through guide rail, and the outer end end of piston is provided with roller shaft 16,94, the inner end of piston be provided with shaft coupling 12,
13, it is all connected with a pair axisymmetric rollers on roller shaft 16,94 and shaft coupling 12,13；Ring-type of the guide rail 3,5,7,8 in axial direction is bent
Face, fluctuating of the curved surface with axial direction, guide rail 3,5,7,8 is in annular shape in the projection of central axis direction, and described curved surface has 2 most
High point and 2 minimum points, described highs and lows are located at respectively orthogonal two of annulus diametrically, described
Curved surface is respectively in accordance with two described diameter symmetries；Roller is rolled on guide rail, promotes piston to be axially moveable；Described roller
Rolling surface be adapted to guide rail；
The outer end of piston refers to piston near drive end bearing bracket 1 or one end of rear end cap 9, and the inner of piston refers to piston away from front
One end of end cap 1 or rear end cap 9；
It is mutually anti-phase positioned at the waveform that the curved surface of the guide rail at piston two ends rises and falls；
The waveform of the curved surface of guide rail 3,5,7,8 and left axial groove b, d and right axial groove a, c, left window f, h and right window e,
The position of g has following corresponding relation：First stage guide rail and idler wheel driving piston move right, and left axial groove is directed at left window
Mouthful, left chamber's suction liquid, while right axial groove is directed at right window, right chamber room excludes liquid；Second stage guide rail and idler wheel driving
Piston is moved to the left, and left axial groove is directed at right window, and left chamber excludes liquid, while right axial groove alignment left window, right chamber
Room sucks liquid；
Shaft coupling 18 in drive end bearing bracket 1 is connected with motor output shaft, is driven by the moving link at piston two ends and is lived
Plug motion；
Rear end cap 9 is square, and oil-out is offered on end face, and side is furnished with up and down location hole and a manhole, positioning
To place bearing pin and be fixedly connected with the pump housing 2, rear end cap is equipped with a sealing ring on the contact surface of cylinder body side and the pump housing in hole,
And have fluid circulate manhole on put sealing ring；
The forward and backward end cap 1,9 of the pump housing 2 is with guide rail by pump housing inner chamber enclosure into closed lubricating cavity.
Described left window and right window is located at the diverse location of central shaft.
Described drive end bearing bracket 1 is square, and left side is evenly equipped with four circular holes, and right side is furnished with symmetrical four location hole,
To place bearing pin and be connected with the pump housing, inner surface is furnished with centre bore and a circular big groove to location hole, in circular big groove
Place moving link；The outside of shaft coupling 18 socket rubber oil sea and deep groove ball bearing, are placed in the centre bore of drive end bearing bracket；Shaft coupling
18 side is furnished with cylinder boss, and opposite side is furnished with rectangular boss, and the upper and lower front and rear surfaces of rectangular boss are furnished with U-shaped groove, and U-shaped is recessed
Groove is equipped with a sealing ring completely through rectangular boss, described drive end bearing bracket 1 near the contact surface of the side of cylinder body 4 and the pump housing 2.
Described moving link is distributed in the moving link connected between the both sides of cylinder body 4,10, and two cylinder bodies 4,10 and leads to
Cross driving lever 39 to be connected.
The upper and lower sides of shaft coupling 12,13 are cylinder, are socketed two rollers, and match somebody with somebody with the conical camber gap of guide rail
Close.
, by the first annular groove connection on cylinder body, two right window e, g are by second on cylinder body for two left windows f, h
Cannelure is connected.
Two cylinder bodies 4,10 are located in the pump housing 2 and are fixedly connected with the pump housing 2；Deep groove ball bearing 20, rubber oil sea 19 are located at
In the centre bore of drive end bearing bracket 1, it is socketed on shaft coupling 18 and is connected with cylinder body 4.Cylinder body 4,10 is in annular, and both sides are evenly equipped with two
Individual symmetrical location hole, outer surface is furnished with symmetrical circular hole, and inner surface is furnished with four rectangular openings, with the suction of the outside pump housing, oil extraction
Mouthful connection, outer surface is furnished with two cannelures, be furnished with round boss in the middle of two cannelures four symmetrical rectangular windows with
Inner surface rectangular opening is communicated, and symmetrical two rectangular windows are communicated with the same side cannelure.
Two inlet ports A, B and an oil drain out C are provided with the pump housing 2, and symmetrical semi-circular hole is opened up on two end faces
D, E, F, G, are maintained a fixed respectively using positioning ball 24,25,30,31 with cylinder body 4,10, and inner surface or so end respectively opens up
There are three rectangular openings, two symmetrical rectangular openings are communicated with inlet port, and another rectangular opening is communicated with oil drain out；Piston 15,11
It is located at respectively in cylinder body 4,10 and coordinates with cylinder body 4,10 gaps；Guide rail 3,5 is located at the both sides of cylinder body 4, and by symmetrical
Bearing pin 22,23,26,27 is fixedly connected with cylinder body 4；Guide rail 7,8 is located at the both sides of cylinder body 10, and by bearing pin 28,29,32,33
It is fixedly connected with cylinder body 10.
Piston 15,11 is located in cylinder body 4,10 respectively, and both sides are furnished with annular cylinder boss, have on annular cylinder boss
Manhole insertion cylinder boss, and U-type groove insertion cylinder boss is furnished with the cylinder boss of side, position is with circular hole circumferentially
90 degree of difference, outer surface of piston is furnished with first annular groove and the second cannelure, and two left windows f, h are connected by first annular groove
Logical, two right window e, g are connected by the second cannelure.Guide rail 3,5,7,8 is in annular, and both sides are evenly equipped with annular boss, and one
The tapered curved surface in section of side boss.
The inner moving link near drive end bearing bracket 1 of piston 15 include shaft coupling 13, roller 6,14, bearing pin 44, deep-groove ball axle
Hold 34,36,49,51, jump ring 43,56, pad 35,50,41,54, elastic spring 40,53,61,64, needle bearing 42,55, dial
Bar 39；Shaft coupling 13 and piston 15 are concatenated by bearing pin 44, the two ends of bearing pin 44 socket jump ring (43,56), be connected shaft coupling 13
With piston 15；The shaft coupling about 13 both sides be cylinder, mid portion is rectangular boss, the both sides of boss be furnished with two it is big
Little different round ring boss, boss outer surface is evenly equipped with circular port through round ring boss, and right side round ring boss is near square
Shape boss side is furnished with laterally zygomorphic rectangular recess；The shaft coupling is socketed respectively deep groove ball bearing on the cylinder of both sides about 13
34th, 36,49,51, centre is separated respectively and outer surface socket roller 6,14 with pad 35,50, and the two ends of shaft coupling 13 are kept off with steel wire
Circle 61,64 is fixed on bearing on shaft coupling 13；The manhole on the side round boss of shaft coupling 13 of the driving lever 39, two
End is socketed respectively needle bearing 42,55, and is fixed on the two ends of driving lever 39 by pad 41,54 and elastic spring 40,53；The rolling
Needle bearing 42,55 is placed in two symmetrical U-lags of shaft coupling 12, connects shaft coupling 13,12.
The outer end of piston 15 is located in drive end bearing bracket near the moving link of drive end bearing bracket 1, and by bearing pin 76 and piston 15
Manhole connects；The outer end of piston 15 near drive end bearing bracket 1 moving link include roller 21,17, deep groove ball bearing 66,68,
72nd, 74, pad 67,70,73,78, bearing pin 76, roller shaft 16, needle bearing 71,77, elastic spring 65,69,75,79；Roller
The upper and lower ends of axle 16 are in cylinder, and centre is furnished with U-shaped hole, and two ends are socketed in two rollers 21,17, each roller and are socketed two respectively
Individual bearing 66,68,72,74, is furnished with respectively pad 67,73 and separates in the middle of bearing, the two ends of roller shaft 16 respectively with elastic spring 65,
75 fixing bearings 66,68,72,74 are on roller shaft 16；Bearing pin 76 is positioned in the U-shaped hole of roller shaft 16, empty with roller shaft 16
Between position be in 90 degree, two ends are furnished with toroidal cavity；The needle bearing 71,77 is socketed in the two ends of bearing pin 76, uses shaft end steel wire
Back-up ring is fixed on the groove of driving lever two ends, is positioned in the U-shaped hole at the two ends of shaft coupling 18.
The inner moving link near rear end cap 9 of piston 11 include shaft coupling 12, roller 60,48, deep groove ball bearing 59,
57th, 45,47, pad 46,58, elastic spring 62,63, bearing pin 37, jump ring 38,52；The upper and lower ends of shaft coupling 12 are cylindrical, in
Between be rectangle, there is a round ring boss on right side, and boss is provided with two symmetrical U-lags and rectangular channel near centre side, circle
Annular boss outer surface is furnished with manhole；The shaft coupling about 12 two cylindrical outer surfaces be socketed two pairs of deep-groove balls respectively
Bearing 59,57), (45,47), centre separated with pad 58,46 respectively, the roller 60,48 is socketed in respectively two pairs of deep-groove balls
Bearing (59,57), (45,47) outer ring, are fixed on shaft coupling 12 with elastic spring 62,63；The bearing pin 37 runs through shaft coupling
In the manhole of 12 round ring boss and the manhole of piston 11, two ends are fixed with jump ring 38,52.
The outer end of piston 11 is located in rear end cap 9 near the moving link of rear end cap 9, including bearing pin 85, jump ring 86,87, steel
Silk back-up ring 80,92, roller 81,91, deep groove ball bearing 82,84,88,90, pad 83,89, roller shaft 94；Bearing pin 85 is connected piston
11 and roller shaft 94, two ends are fixed with jump ring 86,87；The outer surface of the roller shaft 94 is socketed deep groove ball bearing 82,84,88,90,
Centre pad 83,89 separates, and roller 81,91 is socketed outside two ends, is fixed with elastic spring 80,92；
Preferably, to make duplex two dimension piston pump eliminate flow pulsation, 45 are staggered on the shaft coupling 13,12 locus
Degree angle, the flow summation of two generations of cylinder body 4,10 tends to a stationary value.Guide rail 3,5,7,8 and the pin 22 of cylinder body 4,10,
23rd, 26,27,28,29,32,33 is circumferentially fixed, and the pressure change in cylinder body causes guide rail axial direction motion compensation, enables roller
Curved surface on laminating guide rail；Shaft coupling 12, shaft coupling 13 are connected with driving lever 39, shaft coupling 12, shaft coupling 13 respectively with piston 15
Connected with bearing pin 37,44, shaft coupling 12 and shaft coupling 13 can swing rotating around bearing pin bearing pin 37,44, in the same manner roller shaft
16th, 93 can swing around bearing pin 76,85 respectively so that upper and lower ends roller is preferably fitted guide rail, it is to avoid the guide rail plane of symmetry
Height error.
The operation principle of the present embodiment：
Monoblock pump wicking oil extraction operation principle：
Piston 15 is fixed together with roller shaft 16 by bearing pin, and brushless electric machine transfers torque to pin by shaft coupling 18
On axle, drive roller shaft 16 rotate, roller shaft 16 with shaft coupling 18 rotate together with bearing pin while, the two ends of roller shaft 16
Roller 21,17 also can be rolled on guide rail 3.In the same manner, right side shaft coupling 13 is connected by bearing pin with piston 15, on right side shaft coupling 13
Lower two ends are socketed roller 6,14, and when moment of torsion is delivered to piston 15, the drive right side upper roller 6,14 of shaft coupling 13 is in right rail 5
Roll.When left side roller 21,17 is rolled to the peak of left rail 3, i.e., right roller 6,14 is rolled to right rail 5
Minimum point, piston 15 moves axially to high order end；When left side roller 21,17 is rolled to the minimum point of left rail 3, i.e., right side
Roller 6,14 is rolled to the peak of right rail 5, and piston 15 moves axially to low order end.With left side roller 21,17 and the right side
The continuous rolling in left rail 3, right rail 5 respectively of side wheel 6,14, so that it may so that piston 15 carry out it is axially consecutive reciprocal
Motion, realize piston 15 is axially having continuous reciprocating motion again while circumferentially continuous rotation.
As shown in Figure 19 a, 19b, 20a, 20b, right axial groove a, c notch on piston and left axial groove b, d notch direction
On the contrary.Two group windows corresponding with left and right axial groove are e, g and f, h on cylinder body, and roller is rolled on curved guide, are driven
Piston double freedom is moved
Figure 21 a and 21b be piston movement to high order end when, now rectangle groove a, b, c, the d on piston not with cylinder body on
E, f, g, h window link up.
Start movement toward right-hand member while piston rotation, as shown in Figure 22 a, 22b, rectangle groove a, b, c on piston,
D is linked up respectively with window e, f, g, the h on cylinder body, the left chamber that cavity volume becomes larger, by ditch circulation passage a-e, c-g from fuel tank
Middle oil suction；The right chamber room that volume is tapered into is extruded fluid by ditch circulation passage b-f, d-h by the oil of intracavity.
When piston moves to low order end, now rectangle groove a, b, c, the d on piston not with cylinder body on window e, f, g, h
No longer link up.When piston is rotated further, then piston starts toward left movement, and right chamber room begins through ditch circulation passage b-e, d-g from oil
Case oil suction；Left chamber is extruded oil by ditch circulation passage c-f, a-h.
The operation principle of two cylinder bodies is identical, and shaft coupling 13 is connected on shaft coupling 12 by bearing pin 39, when piston 15 is rotated
When band piston 11 rotate, guide rail 5 and guide rail 7 are communicated with the oil drain passage on the pump housing 2, i.e., from same oil drain out discharge.
Content described in this specification embodiment is only enumerating for the way of realization to inventive concept, of the present utility model
Protection domain is not construed as being only limitted to the concrete form that embodiment is stated, protection domain of the present utility model is also and in this
Art personnel according to this utility model design it is conceivable that equivalent technologies mean.
Claims (8)
1. float type two dimension double crosslinking piston pump, including the pump housing, is provided with inlet port and oil drain out on the pump housing, pump list is provided with the pump housing
Unit, it is characterised in that：
Pump unit includes being fixed on two cylinder bodies in the pump housing, and in two cylinder bodies or so, two cylinder bodies of arrangement piston is equipped with, and
Two-piston mutually links；The central shaft of cylinder body and the center overlapping of axles of piston, the two ends of piston are equipped with driving piston and axially move
The dynamic moving link to cause working chamber volume to change, and when driving piston movement piston two ends the moving link direction of motion
On the contrary；
The moving link of described cylinder body, piston and both sides constitutes the one of pump, close near the first line of a couplet for pump of drive end bearing bracket
The second line of a couplet for pump of rear end cap；
Work chamber includes the left chamber positioned at cylinder body two ends and right chamber room respectively, and it is convex that the both sides of piston are furnished with annular cylinder
Platform, is furnished with cloth on the manhole of insertion annular cylinder boss, and side annular cylinder boss on annular cylinder boss
There is the U-type groove of insertion annular cylinder boss, U-type groove circumferentially differs 90 degree with the position of manhole；The appearance of piston
Face is furnished with two cannelures, and the intermediate arrangement of cannelure has the guide rail in a round boss, round boss and left side by inner chamber of cylinder block
Enclosure into closed left chamber, round boss and right side guide rail by the into closed right chamber room of inner chamber of cylinder block enclosure；Round boss
Two axisymmetric left axial grooves and two axisymmetric right axial grooves are provided with, and left axial groove and right axial groove are in piston
Equidistantly it is arranged alternately on the circumference of cross section；Left axial groove is connected with left chamber, right axial groove and right chamber；On cylinder body
Be provided with two axisymmetric left windows and two axisymmetric right windows, the left window connected with described oil drain out and with it is described
The projection of the right window on the cross section of cylinder body of inlet port connection be equidistantly alternately distributed along the circumference of cylinder body；
Axial symmetry is referred to the substantially symmetrical about its central axis of piston；The direction that the central shaft of piston is located axially is referred to, piston is radially referred to
The direction that the diameter of cross section is located；
Moving link includes guide rail and roller, and guide rail is fixed on the end of cylinder body, and piston runs through guide rail, and the outer end end of piston
Roller shaft is provided with, the inner end of piston is provided with shaft coupling, a pair axisymmetric rollers are all connected with roller shaft and shaft coupling；Lead
Rail is in the ring-type curved surface of axial direction, and fluctuating of the curved surface with axial direction, guide rail is in circular, described song in the projection of central axis direction
There are 2 peaks and 2 minimum points in face, and described highs and lows are respectively positioned at orthogonal two diameters of annulus
On, described curved surface is respectively in accordance with two described diameter symmetries；Roller is rolled on guide rail, promotes piston to be axially moveable；
The rolling surface of described roller is adapted to guide rail；
The outer end of piston refers to piston near drive end bearing bracket or one end of rear end cap, the inner of piston refer to piston away from drive end bearing bracket or
One end of rear end cap；
It is mutually anti-phase positioned at the waveform that the curved surface of the guide rail at piston two ends rises and falls；
The waveform of the curved surface of guide rail has following corresponding pass with the position of left axial groove and right axial groove, left window and right window
System：First stage guide rail and idler wheel driving piston move right, and left axial groove is directed at left window, and left chamber sucks liquid, while
Right axial groove is directed at right window, and right chamber room excludes liquid；Second stage guide rail and idler wheel driving piston are moved to the left, left axial groove
Right window is directed at, left chamber excludes liquid, while right axial groove alignment left window, right chamber room suction liquid；
Shaft coupling in drive end bearing bracket is coaxially connected with the output shaft of motor, by the moving link band piston at piston two ends
Motion；
Rear end cap is square, and side is furnished with up and down location hole and a manhole, and location hole is to place bearing pin and consolidate with the pump housing
Fixed connection, rear end cap is equipped with a sealing ring on the contact surface of cylinder body side and the pump housing, and has on the manhole of fluid circulation
Put sealing ring；
The forward and backward end cap of the pump housing is with guide rail by pump housing inner chamber enclosure into closed lubricating cavity.
2. float type as claimed in claim 1 two dimension double crosslinking piston pump, it is characterised in that：Described left window and right window position
In the diverse location of central shaft.
3. float type as claimed in claim 2 two dimension double crosslinking piston pump, it is characterised in that：Described drive end bearing bracket is square, left
Side is evenly equipped with four circular holes, and right side is furnished with symmetrical four location hole, location hole to place bearing pin and be connected with the pump housing,
Inner surface is furnished with centre bore and a circular big groove, and moving link is placed in circular big groove；Shaft coupling outside socket rubber
Oil sealing and deep groove ball bearing, are placed in the centre bore of drive end bearing bracket；The side of shaft coupling is furnished with cylinder boss, and opposite side is furnished with rectangle
Boss, the upper and lower front and rear surfaces of rectangular boss are furnished with U-shaped groove, and U-shaped groove is completely through rectangular boss, and described drive end bearing bracket is close
Cylinder body side is equipped with a sealing ring with the contact surface of the pump housing.
4. float type as claimed in claim 3 two dimension double crosslinking piston pump, it is characterised in that：Described moving link is distributed in cylinder
The moving link connected between the both sides of body, and two cylinder bodies is connected by driving lever.
5. float type as claimed in claim 4 two dimension double crosslinking piston pump, it is characterised in that：The upper and lower sides of shaft coupling are circle
Post, is socketed two rollers, and coordinates with the conical camber gap of guide rail.
6. float type as claimed in claim 5 two dimension double crosslinking piston pump, it is characterised in that：Two left windows are by cylinder body
First annular groove connection, two right windows are by the second cannelure connection on cylinder body.
7. float type as claimed in claim 6 two dimension double crosslinking piston pump, it is characterised in that：Described cylinder body is with guide rail with symmetrically
Four bearing pins of distribution carry out circumferentially fixed, and according to the pressure change of left and right chamber in cylinder body, cylinder body can axially float with guide rail.
8. float type as claimed in claim 7 two dimension double crosslinking piston pump, it is characterised in that：The roller shaft at described piston two ends
It is socketed by bearing pin with piston with shaft coupling, described roller shaft and shaft coupling can circumferentially float respectively around bearing pin, two ends
Roller can swing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621022136.3U CN206092303U (en) | 2016-08-31 | 2016-08-31 | floating type two-dimensional duplex piston pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621022136.3U CN206092303U (en) | 2016-08-31 | 2016-08-31 | floating type two-dimensional duplex piston pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206092303U true CN206092303U (en) | 2017-04-12 |
Family
ID=58478879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621022136.3U Withdrawn - After Issue CN206092303U (en) | 2016-08-31 | 2016-08-31 | floating type two-dimensional duplex piston pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206092303U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107781125A (en) * | 2016-08-31 | 2018-03-09 | 浙江工业大学 | Float type two dimension double crosslinking piston pump |
| CN108194298A (en) * | 2017-12-29 | 2018-06-22 | 浙江工业大学 | A kind of two-dimentional plunger hydraulic pamp of water-oil separating formula rolling wheel guide rails transmission |
| CN108301998A (en) * | 2017-12-29 | 2018-07-20 | 浙江工业大学 | A kind of two-dimentional plunger pump of rolling wheel guide rails transmission |
-
2016
- 2016-08-31 CN CN201621022136.3U patent/CN206092303U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107781125A (en) * | 2016-08-31 | 2018-03-09 | 浙江工业大学 | Float type two dimension double crosslinking piston pump |
| CN107781125B (en) * | 2016-08-31 | 2019-05-28 | 浙江工业大学 | Float type two dimension double crosslinking piston pump |
| CN108194298A (en) * | 2017-12-29 | 2018-06-22 | 浙江工业大学 | A kind of two-dimentional plunger hydraulic pamp of water-oil separating formula rolling wheel guide rails transmission |
| CN108301998A (en) * | 2017-12-29 | 2018-07-20 | 浙江工业大学 | A kind of two-dimentional plunger pump of rolling wheel guide rails transmission |
| CN108301998B (en) * | 2017-12-29 | 2019-05-31 | 浙江工业大学 | A kind of two-dimentional plunger pump of rolling wheel guide rails transmission |
| CN108194298B (en) * | 2017-12-29 | 2019-07-05 | 浙江工业大学 | A kind of two-dimentional plunger hydraulic pamp of water-oil separating formula rolling wheel guide rails transmission |
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