CN206562977U - Two-dimensional axial plunger pump - Google Patents

Two-dimensional axial plunger pump Download PDF

Info

Publication number
CN206562977U
CN206562977U CN201621469838.6U CN201621469838U CN206562977U CN 206562977 U CN206562977 U CN 206562977U CN 201621469838 U CN201621469838 U CN 201621469838U CN 206562977 U CN206562977 U CN 206562977U
Authority
CN
China
Prior art keywords
plunger
cylinder body
oil duct
connection
pressure oil
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
Application number
CN201621469838.6U
Other languages
Chinese (zh)
Inventor
阮健
何鸿斌
李进园
熊慎
虞儒敏
贾文昂
赵伟
孟彬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang University of Technology ZJUT
Original Assignee
Zhejiang University of Technology ZJUT
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang University of Technology ZJUT filed Critical Zhejiang University of Technology ZJUT
Priority to CN201621469838.6U priority Critical patent/CN206562977U/en
Application granted granted Critical
Publication of CN206562977U publication Critical patent/CN206562977U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

Two-dimensional axial plunger pump, including the second cylinder body for entering the first fuel-displaced cylinder body, for adjusting suction oil, plunger assembly, the drive component for realizing the motion of plunger assembly double freedom and the end cap for accommodating plunger assembly, the first end sealing of first cylinder body and second cylinder body is affixed, and the second end of second cylinder body and the end cap seal are affixed;The plunger assembly is contained in the plunger cavity volume of the end cap, and the plunger assembly is rotated with second cylinder body and is connected.The beneficial effects of the utility model are:Axle and plunger integrated design, overall structure is greatly simplified, the oil distribution casing structure of conventional axial plunger pump is instead of using double freedoms of motion (2D) structure of rotation and the slip of plunger, to realize the oily function of continuous suction, and move back and forth once, suction oil is each once, more than conventional axial plunger pump once;The utility model only has friction pair so that efficiency is greatly improved;Cost is substantially reduced.

Description

Two-dimensional axial plunger pump
Technical field
The utility model is related to a kind of two-dimensional axial plunger pump, the hydraulic pump and liquid belonged in Fluid-transmission and control field Pressure motor.
Background technology
Plunger pump plunger and cylinder body are used as groundwork component.When plunger in the plunger hole of cylinder body it is reciprocating When, volume change occurs for the closed swept volume chamber being made up of plunger and cylinder body, completes suction, oil extraction process.According to plunger in cylinder Different spread patterns in body, plunger pump is divided into radial and the major class of axial type two.Radial plunger pump is due to complicated, volume It is larger, substituted in many occasions by axial plunger pump.The plunger centerline parallel (or substantially parallel) of axial plunger pump in The axis of cylinder body.The good airproof performance of such pump, it is high (rated operating pressure is general up to 32-40MPa) with operating pressure, Remain to keep at a relatively high volumetric efficiency (typically 95% or so) and gross efficiency (typically more than 90%) under high pressure, easily Realize variable and unit power it is lightweight the advantages of;It is widely used in pressure processing machinery, handling equipment, engineering machine In tool, ship deck machinery, metallurgical machinery, cannon and field of space technology, and high pressure and high pressure fuel source can be used as.
The operation principle of the common axial plunger pump of tradition:When power transmission shaft drives cylinder body to rotate, cylinder body can drive plunger Rotate, by changing the angle between plunger and clinoplain or between power transmission shaft so that plunger makees straight line in plunger cavity Move back and forth.Moved back and forth by plunger in cylinder bore, make seal operation cavity volume change to realize suction, force feed. The part of its internal relative motion of traditional axial plunger pump is more, high to Material texture, requirement on machining accuracy, quick to oil contamination Sense, processing, using, safeguard requirement and cost it is higher, it is expensive;Cylinder body is rotated with power transmission shaft, and rotary inertia is big, leads Cause the response speed of startup, stopping, speed governing slow, be unfavorable for the output flow come controlling pump by speed governing;In cylinder body friction pair compared with Many, under high-speed rotation, cylinder body temperature rise is very fast, and the abrasion of the part such as valve plate, plunger directly affects the service life of pump and durable Property.In addition, due to the limitation of plunger pump operation principle itself, drive axis one week, each plunger can only be realized once Oil suction and an oil extraction, its discharge capacity are restricted.
The content of the invention
In order to overcome the drawbacks described above that existing axial plunger pump is present, the utility model provide a kind of structure novelty it is compact, Small volume, it is lightweight, be driven simple, easy speed governing, discharge capacity is high, (can be moved axially while rotation) using plunger double freedom Motion principle realize the two-dimensional axial plunger pump of continuous suction oil.
Two-dimensional axial plunger pump described in the utility model, it is characterised in that:Including for entering the first fuel-displaced cylinder body, use In with the second cylinder body of piston valving, plunger assembly, for realize plunger assembly double freedom motion drive component and use In the end cap for accommodating plunger assembly, the first end sealing of first cylinder body and second cylinder body is connected, second cylinder body The second end and the end cap seal be connected;The plunger assembly is contained in the plunger cavity volume of the end cap, and the post Plug assembly is rotated with second cylinder body and is connected;
First cylinder body be provided with a low pressure oil input channel and a high pressure oil road, wherein the low pressure oil input channel with The oil feeding reservoirs connection, the high pressure oil road are connected with executive item;
Second cylinder body is provided with center hub, has two the first connection oil ducts and two for being used to connect with low pressure oil input channel Bar is used for the second connection oil duct connected with high pressure oil road, and the head end of the center hub is embedded with for blocking matching somebody with somebody for fabrication hole Component, end is provided with the clutch shaft bearing for being used for supporting plunger assembly;The first connection oil duct and the low pressure oil input channel are one by one Correspondence, the second connection oil duct is corresponded with the high pressure oil road;
The plunger assembly includes plunger, spring and spring base, and the plunger is divided into for the company with the second cylinder body The Connectivity Section of oil canal insertion, the linkage section for support spring and the construction section for being connected with drive component, the company Logical section provided with being used for the grooves with connect oil duct connection cooperation for a pair, and the groove can only be connected with described first oil duct or One kind correspondence in the second connection oil duct is linked up;The central through hole of the second cylinder body is inserted in the Connectivity Section of the plunger, and The Connectivity Section outer wall of the plunger is brought into close contact with the central through hole inwall, and the linkage section passes through clutch shaft bearing and described the Two cylinder bodies rotate connection, and the groove set on the Connectivity Section is located exactly at can connect oil duct with first and the second connection is oily Road is linked up;The spring housing and one end of the spring and is against on clutch shaft bearing end face in the linkage section of the plunger Spring base is connected, and the other end is against on the step surface that linkage section is formed with construction section;
The drive component includes shaft coupling, roller shaft, curved cam guide rail and rolling assembly, the construction section of the plunger It is connected by shaft coupling with outside motor;The construction section of the roller shaft and the plunger is connected, and the roller The two ends of axle are respectively symmetrically installed by rolling assembly;The curved cam guide rail is embedded in the end cap, the curved cam its Middle end face is as the smooth surface of rolling for rolling assembly along its surface scrolls, and the smooth surface of rolling is symmetrical, and When rolling assembly moves to the minimum point of the smooth surface of rolling, the first connection oil duct is connected with the groove of the plunger, real Existing plunger pump oil-absorbing process;When rolling assembly moves to the peak of the smooth surface of rolling, it is described second connection oil duct with it is described The groove connection of plunger, realizes plunger pump oil extraction process.
Second cylinder body provided with two first connection oil ducts and two second connection oil ducts, it is described first connection oil duct with The second connection oil duct is axially arranged along second cylinder body, and the first connection oil duct outer end, second company Oil canal outer end is connected with the low pressure oil inlet passage, the high pressure oil discharge passage respectively, the inner of the first connection oil duct, The inner cross connection oil duct insertion by being radially arranged along the second cylinder body of the second connection oil duct, the cross company Oil canal is centrally located on the central shaft of the central through hole, and cross connection oil duct every branch road with described first Oil duct or the second connection oil duct connection are connected, every the inner of branch road connects with the central through hole, the outer end of branch road The outside of the second cylinder body is extended to, and the outer end of every branch road is furnished with a set of seal being made up of steel ball and link block.
The high pressure oil road and the low pressure oil input channel are Π type oil ducts, and the high pressure oil road and the low pressure are entered Oil duct extends to the outside of the first cylinder body in 90 ° of angles, interconnection one end of wherein Π types oil duct, forms corresponding low pressure and enters Hydraulic fluid port or high-pressure oil outlet, and two perpendicular runners of its mesolow oil input channel coordinate with the corresponding first connection oil duct respectively Insertion;Two perpendicular runners of high pressure oil road coordinate insertion with the corresponding second connection oil duct respectively.
The plunger is two stage steps axle, wherein the external diameter of the Connectivity Section, the linkage section and the construction section is gradually Increase;The end of Connectivity Section is provided with two rectangle grooves along its axially symmetric disposition;The construction section, which is provided with, to be used to be caught in roller First U-shaped groove of axle, and the wall of the first U-shaped groove is correspondingly provided with alignment pin through hole.
The roller shaft is connected by the construction section of pin assembly and the plunger, and the pin assembly includes first Alignment pin, the first needle bearing and the axle-steel silk back-up ring for limiting the axial movement of the first needle bearing, described first determines Position pin middle part and the middle part of plunger installation portion and roller shaft are connected, and first alignment pin is socketed first after running through alignment pin through hole Needle bearing;The axle-steel silk shield ring sleeve is in the first annular groove of the first alignment pin end.
The shaft coupling includes being used to be caught in the first installation portion of plunger construction section and for being connected with extraneous motor The second installation portion, first installation portion is provided with the second U-shaped groove and the 3rd U-shaped groove, and the construction section of the plunger is inserted In the second U-shaped groove, and first needle bearing is stuck in the 3rd U-shaped groove;Second installation portion is Cylinder with rectangle keyway, second installation portion inserts the centre bore of the curved cam guide rail, and is fitted close therewith; The output shaft of outside motor inserts the rectangle keyway, is used to insert wherein the side wall of the curved cam guide rail is provided with The positioning pin jack of alignment pin.
The rolling assembly includes the second needle bearing, second bearing and the circular table roller with center step through-hole Set, the second needle bearing, circular table roller housing and second bearing, institute are symmetrically installed in the both ends of roller shaft successively from inside to outside State second bearing and be stuck in the center step through hole, realize the tight fit of the circular table roller housing and the roller shaft; The roller the tip of the axis is provided with the second annular groove, and second annular groove is embedded with for limiting second bearing axially shifting Dynamic circlip.
The curved cam guide rail is cylinder, and the curved cam guide rail is consolidated by the second alignment pin and the end cap Connect, and the end face towards plunger side of curved cam guide rail is rolling surface, and rolling surface is symmetrical smooth arc curved surface, and The smooth arc curved surface is provided with two peaks and two minimum points;The curved cam guide rail and the second of the shaft coupling J-shaped outside framework oil seal and deep groove ball bearing for sealing and reducing friction is installed between installation portion.
Clutch shaft bearing and second bearing are thrust ball bearing.
The contact end face of first cylinder body offers 4 annular seal grooves and a total annular seal groove, wherein four annulars Seal groove is arranged at the high pressure oil road and the low pressure oil input channel, and a total annular seal groove sets circle in the first cylinder body Contact end face outer ring, and by high pressure oil road and the low pressure oil input channel circle in total annular seal groove;The contact jaw of end cap Face is provided with the end cap annular seal groove for embedding sealing circle.
Operation principle is as follows:When motor is rotated, transmitted torque to by shaft coupling, the first needle bearing and bearing pin Plunger.Circular cone roller is on roller shaft and roller shaft is connected with plunger.The right-hand member of spring is connected with plunger, and left end passes through bullet Spring abutment is pressed on thrust bearing.Plunger drives roller shaft rotation while rotating, and roller is pressed in convex under spring force Take turns on guide rail, cam tracks are pressed on end cap.Because the effect of cam tracks forces plunger also to be done while rotation back and forth directly Line is moved.Four windows of circumference uniform distribution and inside are provided with runner on cylinder body, and two be that high pressure window is attached thereto is high pressure Oil duct, two be that low pressure window is attached thereto is low pressure oil duct.Inlet port and oil discharge outlet are provided with oil inlet and outlet cylinder body, and Inside has high-pressure oil duct and low pressure oil duct to be connected to form high-low pressure oil circuit with the high-low pressure oil duct on cylinder body respectively.Plunger end Two oil grooves are arranged symmetrically, when the peak of roller motion to guide rail, cavity volume volume reduces pressure rise, and cavity volume passes through plunger On two oil grooves connected with high pressure window, the fluid in cavity volume by high pressure window flow into high-pressure oil duct and from oil discharge outlet arrange Go out.When the minimum point of roller motion to guide rail, cavity volume volume becomes big, and negative pressure is formed in cavity, and now cavity volume passes through on plunger Two oil grooves connected with low pressure window, the fluid in fuel tank by inlet port flow into low pressure oil duct, flow through low pressure window and Oil groove on plunger enters cavity volume.Motor often rotates a circle, and cavity completes oil extraction twice and oil suction twice.
The beneficial effects of the utility model are:
1) axle and plunger integrated design are proposed, overall structure is greatly simplified, utilize the rotation and slip of plunger Double freedom of motion (2D) structures instead of the oil distribution casing structure of conventional axial plunger pump, to realize the oily function of continuous suction, and And move back and forth once, suction oil is each once, more than conventional axial plunger pump once.
2) many friction auxiliary structures of more traditional plunger pump, the utility model only has friction pair so that efficiency is obtained very It is big to improve.
3) miniaturization is realized, on the premise of flow is ensured, cost is substantially reduced.
4) window on the rectangle groove and cylinder body on plunger is linked up, and the chamber that volume becomes larger passes through communication Rectangle groove and window are from fuel tank oil suction, and the chamber that volume is gradually reduced is arranged intracavitary fluid by the groove and window of communication Go out;Plunger, which is successively moved back and forth, makes the volume of left and right chamber constantly staggeredly change, and realizes continuous oil suction and oil extraction.
Brief description of the drawings
Fig. 1 is the structural representation of two-dimensional axial plunger pump of the present utility model.
Fig. 2 is shaft coupling explosive view of the present utility model.
Fig. 3 a are plunger schematic diagram of the present utility model.
Fig. 3 b are the Section A-A figure in Fig. 3 a.
Fig. 4 be plunger motion of the present utility model to low order end when, groove on plunger not with the window on the second cylinder body The schematic cross-section that oil duct is linked up.
Fig. 5 is plunger rotation of the present utility model and starts movement toward left end, the groove on plunger respectively with cylinder body The schematic cross-section that oil duct is linked up.
Fig. 6 is oil inlet and outlet cylinder body of the present utility model and cylinder body suction passage profile.
Fig. 7 is Fig. 6 A-A sectional views.
Fig. 8 is oil inlet and outlet cylinder body of the present utility model and cylinder body oil drain passage profile.
Fig. 9 is Fig. 8 B-B sectional views.
Figure 10 is the structure chart of curved cam guide rail of the present utility model.
Embodiment
The utility model is further illustrated below in conjunction with the accompanying drawings
Referring to the drawings:
The two-dimensional axial plunger pump described in the utility model of embodiment 1, including for entering the first fuel-displaced cylinder body 1, being used for With the second cylinder body 4 of piston valving, plunger assembly 5, the drive component 6 for realizing the motion of plunger assembly double freedom and use In the end cap 7 for accommodating plunger assembly, the first end sealing of first cylinder body 1 and second cylinder body 4 is connected, second cylinder Second end of body 4 is connected with the end cap 7 sealing;The plunger assembly 5 is contained in the plunger cavity volume of the end cap 7, and The plunger assembly 5 is rotated with second cylinder body 4 and is connected;
First cylinder body 1 is provided with a low pressure oil input channel 11 and a high pressure oil road 12, wherein the low pressure is entered Oil duct 11 is connected with the oil feeding reservoirs, the high pressure oil road 12 is connected with executive item;
Second cylinder body 4 is provided with center hub 41, has two the first connection oil for being used to connect with low pressure oil input channel 11 Road (42,43) and two be used to connect with high pressure oil road 12 second connect oil duct (44,45), the head of the center hub 41 End is embedded with the counterpart 9 (counterpart is hexagonal socket head plug) for blocking fabrication hole, and end, which is provided with, to be used to support plunger assembly 5 Clutch shaft bearing 8;The first connection oil duct (42,43) is corresponded with the low pressure oil input channel 11, the second connection oil duct (44,45) are corresponded with the high pressure oil road 12;
The plunger assembly 5 includes plunger 51, spring base 52 and spring 53, and the plunger 51 is divided into being used for and second Connectivity Section, the linkage section for support spring and the installation for being connected with drive component of the connection oil duct insertion of cylinder body Section, the Connectivity Section is used for connecting the groove (511,512) that oil duct connection coordinates provided with a pair, and the groove can only be with institute One kind correspondence stated in the first connection oil duct or the second connection oil duct is linked up;The Connectivity Section insertion second of the plunger 51 The central through hole 41 of cylinder body 4, and the Connectivity Section outer wall of the plunger is brought into close contact with the central through hole inwall, the connection Section is connected by clutch shaft bearing 8 and second cylinder body 4 rotation, and be located exactly at can be with for the groove set on the Connectivity Section First connection oil duct (42,43) connects oil duct (44,45) communication with second;The spring 53 is enclosed on the connection of the plunger 51 Section, and one end of the spring 53 and the spring base 52 that is against on the end face of clutch shaft bearing 8 be connected, the other end be against linkage section with On the step surface of construction section formation;
The drive component 6 includes shaft coupling 62, roller shaft 63, curved cam guide rail 64 and rolling assembly 65, the post The construction section of plug 51 is connected by shaft coupling 62 with outside motor;The construction section of the roller shaft 63 and the plunger 51 It is connected, and rolling assembly 65 is respectively symmetrically installed at the two ends of the roller shaft 63;The curved cam guide rail 64 is embedded in described In end cap 7, the wherein end face of the curved cam guide rail 64 is used as the smooth rolling for rolling assembly 65 along its surface scrolls Curved surface 641, the smooth surface of rolling 641 is symmetrical, and rolling assembly 65 moves to the minimum point of the smooth surface of rolling 641 When, the groove (511,512) of the first connection oil duct (42,43) and the plunger is connected, and realizes plunger pump oil-absorbing process;Rolling When dynamic component 65 moves to the peak of the smooth surface of rolling 641, the ditch of the second connection oil duct (44,45) and the plunger Groove (511,512) is connected, and realizes plunger pump oil extraction process.
Second cylinder body 4 connects oil duct (44,45), institute provided with two first connection oil ducts (42,43) with two second Stating the first connection oil duct (42,43), to connect oil duct (44,45) with described second axially arranged along second cylinder body 4, and It is described first connection oil duct (42,43) outer end, it is described second connection oil duct (44,45) outer end respectively with the low pressure oil inlet passage 11st, high pressure oil discharge passage connection 12, the first connection oil duct (42,43) inner, described second connection oil duct (44, 45) the inner cross insertion of connection oil duct 46 by being radially arranged along the second cylinder body, the cross connection oil duct 46 On the central shaft for being centrally located at the central through hole 41, and every branch road of cross connection oil duct 46 is connected with described first Oil duct (42,43) or the second connection oil duct (44,45) connection, the inner and central through hole 41 of every branch road connect Logical, the outer end of branch road extends to the outside of the second cylinder body 4, and the outer end of every branch road is furnished with a set of by steel ball 101 and bearing pin 102 seals 10 constituted.
The high pressure oil road 12 and the low pressure oil input channel 11 areType oil duct, the high pressure oil road 12 and described Low pressure oil input channel 11 is in 90 ° of angles, whereinInterconnection one end of type oil duct extends to the outside of the first cylinder body 1, forms phase The low pressure oil inlet or high-pressure oil outlet answered, and two perpendicular runners of its mesolow oil input channel 11 are respectively with corresponding described first Connect oil duct (42,43) and coordinate insertion;Two perpendicular runners of high pressure oil road 12 connect oil duct with corresponding described second respectively (44,45) insertion is coordinated.
The plunger 51 is two stage steps axle, wherein the external diameter of the Connectivity Section, the linkage section and the construction section It is cumulative;The end of Connectivity Section is provided with two rectangle grooves (511,512) along its axially symmetric disposition;The construction section is provided with use In the first U-shaped groove 513 for being caught in roller shaft 63, and the wall of the first U-shaped groove 513 is correspondingly provided with alignment pin through hole 514.
The roller shaft 63 is connected by the construction section of pin assembly 13 and the plunger 51, the pin assembly 13 Axle-steel including the first alignment pin 131, the first needle bearing 132 and for limiting the axial movement of the first needle bearing 132 Silk back-up ring 133, the middle part of the first alignment pin 131 and the middle part of the installation portion of plunger 51 and roller shaft 63 are connected, and described first determines Position pin 131 is socketed the first needle bearing 132 after running through alignment pin through hole 514;The axle-steel silk back-up ring 133 is enclosed on the first positioning In the first annular groove of the end of pin 131.
The shaft coupling 62 include be used for be caught in the construction section of plunger 51 the first installation portion and for extraneous motor Second installation portion of connection, first installation portion is provided with the second U-shaped groove 622 of U-shaped groove 621 and the 3rd, the plunger 51 Construction section insert in the second U-shaped groove 621, and first needle bearing 132 is stuck in the 3rd U-shaped groove At 622;Second installation portion is the cylinder with rectangle keyway, and second installation portion inserts the curved cam guide rail 64 Centre bore, and be fitted close therewith;The output shaft of outside motor inserts the rectangle keyway, wherein the curved surface is convex The side wall of wheel guide rail 64 is provided with the positioning pin jack 643 for being used for inserting alignment pin.
The rolling assembly 65 includes the second needle bearing 651, second bearing 652 and the circle with center step through-hole Pedestal roller set 653, the both ends of roller shaft 63 are symmetrical to install the second needle bearing 651, circular table rolling successively from inside to outside Wheel case 653 and second bearing 652, the second bearing 652 are stuck in the center step through hole, realize the circular table roller The tight fit of set 653 and the roller shaft 63;The end of the roller shaft 63 is provided with the second annular groove, and second ring Shape groove is embedded with the circlip 654 for limiting the axial movement of second bearing 652.
The curved cam guide rail 64 is cylinder, and the curved cam guide rail 64 passes through the second alignment pin 13 and the end Lid 7 is connected, and the end face towards plunger side of curved cam guide rail 64 is rolling surface, and rolling surface is symmetrical smooth arc Curved surface, and the smooth arc curved surface is provided with two peaks and two minimum points;The curved cam guide rail 64 with it is described J-shaped outside framework oil seal and deep groove ball bearing for sealing and reducing friction is installed between the second installation portion of joint 62.
Clutch shaft bearing 8 and second bearing 652 are thrust ball bearing.
The contact end face of first cylinder body 1 offers 4 annular seal grooves 2 and a total annular seal groove 3, wherein four rings Shape seal groove 2 is arranged on the high pressure oil road (44,45) and the low pressure oil input channel (42,43) place, a total ring packing Groove 3 sets circle in the contact end face outer ring of the first cylinder body, and high pressure oil road and the low pressure oil input channel circle is close in total annular In sealing groove;The contact end face of end cap 7 is provided with the end cap annular seal groove for embedding sealing circle.
Operation principle is as follows:When motor is rotated, pass through shaft coupling 64, the first needle bearing 132 and the first alignment pin The moment of torsion of 131 motors passes to plunger 51.Round platform roller housing 653 is mounted on roller shaft 63 and roller shaft 63 and plunger 51 are connected.The right-hand member of spring 53 is connected with plunger 51, and left end is pressed on clutch shaft bearing 8 by spring base 52.Plunger 51 is being rotated While drive roller shaft 63 rotate, round platform roller housing 653 is pressed on curved cam guide rail 64 under spring force, curved surface Cam tracks 64 are pressed on end cap 7.Because the effect of curved cam guide rail 64 forces plunger 51 also to do reciprocal while rotation Linear motion.Four connection runners of circumference uniform distribution on second cylinder body 4, two are the first connection runner (42,43), are attached thereto It is low pressure oil input channel 11, two are the second connection runner (44,45), and what is be attached thereto is on high pressure oil road 12, the first cylinder body 1 Be provided with low pressure oil inlet and high-pressure oil outlet, and internal low pressure oil road 11 and high pressure oil input channel 12 respectively with the second cylinder body The first connection runner (42,43), the second connection runner (44,45) on 4 are connected to form high-low pressure oil circuit.The end pair of plunger 51 Claim arrangement two grooves (511,512), when round platform roller housing 653 moves to the peak of curved cam guide rail 64, reservoir body Product reduces pressure rise, and cavity volume connects oil duct (44,45) with second by two grooves (511,512) on plunger 51 and connected, Fluid in cavity volume flows into high pressure oil road 12 by the second connection runner (44,45) and discharged from high-pressure oil outlet.Work as circle When platform roller housing 653 moves to the minimum point of guide rail, cavity volume volume becomes big, and negative pressure is formed in cavity, and now cavity volume passes through plunger Two grooves (511,512) on 51 connect runner (42,43) connection with first, and the fluid in fuel tank passes through low pressure oil inlet Low pressure oil input channel 11 is flowed into, the groove (511,512) flowed through on the first connection runner (42,43) and plunger 51 enters cavity volume.Electricity Machine often rotates a circle, and cavity completes oil extraction twice and oil suction twice.
In the present embodiment, as shown in Fig. 3 a to Fig. 5, the groove (511,512) of two rectangles on plunger 51, its notch position Put and symmetrically stagger, be i.e. the notch of groove 511 and the notch of groove 512 is in opposite direction.It is relative with groove (511,512) on second cylinder body 4 The the first connection runner (42,43) answered connects oil duct (44,45) with second, wherein the first connection runner (42,43) is by being opened in The perpendicular oil duct (111,112) of the low pressure oil input channel 11 of oil inlet and outlet cylinder interior Π types is mutually communicated, the second connection oil duct (44, 45) it is mutually communicated by the perpendicular oil duct (121,122) for the high pressure oil road 12 for being opened in oil inlet and outlet cylinder interior Π types.
As shown in Figure 4 and Figure 5, plunger is rotated counterclockwise, first connection runner (42,43) connected with second oil duct (44, 45) it is window channel on cylinder body, the perpendicular oil duct (111,112) of low pressure oil input channel 11 is suction passage, the second connection oil duct (44,45) it is oil drain passage.Groove (511,512) is the rectangle groove on plunger 51.
Fig. 4 be plunger motion to low order end when, rectangle groove (511,512) now on plunger 51 not with it is low on cylinder body The perpendicular oil duct (111,112) of oil duct 11, the perpendicular oil duct (121,122) of high pressure oil road 12 is pressed into link up.
Start movement toward left end while plunger rotation, as shown in figure 5, the rectangle groove (511,512) on plunger point Oil duct (44,45) communication is not connected with second on cylinder body, the oil of intracavitary is passed through the second connection by the chamber that volume is tapered into Oil duct (44,45) extrudes fluid.
When plunger is rotated further, then plunger starts motion of turning right, and chamber begins through the perpendicular oil for linking up low pressure oil input channel 11 Road (111,112), first connects runner (42,43) from fuel tank oil suction.
Content described in this specification embodiment is only enumerating to the way of realization of utility model design, and this practicality is new The protection domain of type is not construed as being only limitted to the concrete form that embodiment is stated, protection domain of the present utility model is also wrapped Include those skilled in the art according to the utility model conceive it is conceivable that equivalent technologies mean.

Claims (10)

1. two-dimensional axial plunger pump, it is characterised in that:Including for entering the first fuel-displaced cylinder body, for second with piston valving Cylinder body, plunger assembly, the drive component for realizing the motion of plunger assembly double freedom and the end for accommodating plunger assembly Lid, the first end sealing of first cylinder body and second cylinder body is connected, the second end and the end cap of second cylinder body Sealing is connected;The plunger assembly is contained in the plunger cavity volume of the end cap, and the plunger assembly and second cylinder Body rotates connection;
First cylinder body is provided with a low pressure oil input channel and a high pressure oil road, wherein the low pressure oil input channel and fuel feeding Case connection, the high pressure oil road are connected with executive item;
Second cylinder body provided with center hub, have two be used to connect with low pressure oil input channel first connect oil duct and two with In the second connection oil duct connected with high pressure oil road, the head end of the center hub is embedded with the cooperation for blocking fabrication hole Part, end is provided with the clutch shaft bearing for being used for supporting plunger assembly;A pair of the first connection oil duct and the low pressure oil input channel 1 Should, the second connection oil duct is corresponded with the high pressure oil road;
The plunger assembly includes plunger, spring and spring base, and the plunger is divided into for the connection oil with the second cylinder body The Connectivity Section of road insertion, the linkage section for support spring and the construction section for being connected with drive component, the Connectivity Section It is used for provided with a pair with connecting the groove that oil duct connection coordinates, and the groove can only connect oil duct or described with described first One kind correspondence in second connection oil duct is linked up;The central through hole of the second cylinder body is inserted in the Connectivity Section of the plunger, and described The Connectivity Section outer wall of plunger is brought into close contact with the central through hole inwall, and the linkage section passes through clutch shaft bearing and second cylinder Body rotate connection, and the groove set on the Connectivity Section be located exactly at can connect with first oil duct and second connect oil duct ditch It is logical;The spring housing is in the linkage section of the plunger, and one end of the spring and the spring that is against on clutch shaft bearing end face Seat is connected, and the other end is against on the step surface that linkage section is formed with construction section;
The drive component includes shaft coupling, roller shaft, curved cam guide rail and rolling assembly, and the construction section of the plunger passes through Shaft coupling is connected with outside motor;The construction section of the roller shaft and the plunger is connected, and the roller shaft Two ends are respectively symmetrically installed by rolling assembly;The curved cam guide rail is embedded in the end cap, the curved cam guide rail its Middle end face is as the smooth surface of rolling for rolling assembly along its surface scrolls, and the smooth surface of rolling is symmetrical, and When rolling assembly moves to the minimum point of the smooth surface of rolling, the first connection oil duct is connected with the groove of the plunger, real Existing plunger pump oil-absorbing process;When rolling assembly moves to the peak of the smooth surface of rolling, it is described second connection oil duct with it is described The groove connection of plunger, realizes plunger pump oil extraction process.
2. two-dimensional axial plunger pump as claimed in claim 1, it is characterised in that:Second cylinder body is provided with two first connections Oil duct and two second connection oil ducts, the first connection oil duct connect oil duct with described second along second cylinder body axial direction Set, and the first connection oil duct outer end, the second connection oil duct outer end respectively with the low pressure oil inlet passage, described High pressure oil discharge passage is connected, inner, the described second connection oil duct of the first connection oil duct it is inner by along the second cylinder body The cross connection oil duct insertion being radially arranged, the cross connection oil duct is centrally located at the central shaft of the central through hole On, and every branch road of cross connection oil duct connects oil duct or the second connection oil duct connection with described first, often The inner of bar branch road connects with the central through hole, and the outer end of branch road extends to the outside of the second cylinder body, and every branch road It is furnished with a set of seal being made up of steel ball and bearing pin in outer end.
3. two-dimensional axial plunger pump as claimed in claim 2, it is characterised in that:The high pressure oil road and the low pressure oil-feed Road is Π type oil ducts, and the high pressure oil road and the low pressure oil input channel are in 90 ° of angles, the wherein interconnection of Π types oil duct One end extends to the outside of the first cylinder body, forms corresponding low pressure oil inlet or high-pressure oil outlet, and its mesolow oil input channel Two perpendicular runners coordinate insertion with the corresponding first connection oil duct respectively;Two perpendicular runners of high pressure oil road respectively with it is right The the second connection oil duct answered coordinates insertion.
4. two-dimensional axial plunger pump as claimed in claim 2, it is characterised in that:The plunger is two stage steps axle, wherein institute The external diameter for stating Connectivity Section, the linkage section and the construction section is cumulative;The end of Connectivity Section is axially symmetric along its provided with two The rectangle groove of arrangement;The construction section is provided with the first U-shaped groove for being used for being caught in roller shaft, and the wall of the first U-shaped groove It is correspondingly provided with alignment pin through hole.
5. two-dimensional axial plunger pump as claimed in claim 4, it is characterised in that:The roller shaft passes through pin assembly and institute The construction section for stating plunger is connected, and the pin assembly includes the first alignment pin, the first needle bearing and for limiting first Middle part in the middle part of the axle-steel silk back-up ring of needle bearing axial movement, first alignment pin with plunger installation portion and roller shaft is consolidated Even, first alignment pin is socketed the first needle bearing after running through alignment pin through hole;The axle-steel silk shield ring sleeve is fixed first In the first annular groove of position pin end.
6. two-dimensional axial plunger pump as claimed in claim 1, it is characterised in that:The shaft coupling includes being used to be caught in plunger peace The first installation portion of section and the second installation portion for being connected with extraneous motor are filled, first installation portion is provided with the 2nd U Type groove and the 3rd U-shaped groove, the construction section of the plunger are inserted in the second U-shaped groove, and the first needle bearing card In the 3rd U-shaped groove;Second installation portion is the cylinder with rectangle keyway, and the second installation portion insertion is described The centre bore of curved cam guide rail, and be fitted close therewith;The output shaft of outside motor inserts the rectangle keyway, its Described in the side wall of curved cam guide rail be provided with and be used to insert the positioning pin jack of alignment pin.
7. two-dimensional axial plunger pump as claimed in claim 1, it is characterised in that:The rolling assembly includes the second needle roller axle Hold, second bearing and the circular table roller housing with center step through-hole, the both ends of roller shaft it is symmetrical from inside to outside according to The second needle bearing of secondary installation, circular table roller housing and second bearing, the second bearing are stuck in the center step through hole, Realize the tight fit of the circular table roller housing and the roller shaft;The roller the tip of the axis is provided with the second annular groove, and And second annular groove is embedded with the circlip for limiting second bearing axial movement.
8. two-dimensional axial plunger pump as claimed in claim 1, it is characterised in that:The curved cam guide rail is cylinder, institute Curved cam guide rail is stated to be connected by the second alignment pin and the end cap, and the end towards plunger side of curved cam guide rail Face is rolling surface, and rolling surface is symmetrical smooth arc curved surface, and the smooth arc curved surface is provided with two peaks and two Minimum point;J for sealing and reducing friction is installed between the second installation portion of the curved cam guide rail and the shaft coupling Shape outside framework oil seal and deep groove ball bearing.
9. two-dimensional axial plunger pump as claimed in claim 7, it is characterised in that:Clutch shaft bearing and second bearing are thrust Ball bearing.
10. the two-dimensional axial plunger pump as described in claim 1~9 any one claim, it is characterised in that:First cylinder body Contact end face offer 4 annular seal grooves and a total annular seal groove, wherein four annular seal grooves be arranged on it is described At high pressure oil road and the low pressure oil input channel, a total annular seal groove sets circle in the contact end face outer ring of the first cylinder body, And by high pressure oil road and the low pressure oil input channel circle in total annular seal groove;The contact end face of end cap is provided with close for being embedded in The end cap annular seal groove of seal.
CN201621469838.6U 2016-12-29 2016-12-29 Two-dimensional axial plunger pump Withdrawn - After Issue CN206562977U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621469838.6U CN206562977U (en) 2016-12-29 2016-12-29 Two-dimensional axial plunger pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621469838.6U CN206562977U (en) 2016-12-29 2016-12-29 Two-dimensional axial plunger pump

Publications (1)

Publication Number Publication Date
CN206562977U true CN206562977U (en) 2017-10-17

Family

ID=60029414

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621469838.6U Withdrawn - After Issue CN206562977U (en) 2016-12-29 2016-12-29 Two-dimensional axial plunger pump

Country Status (1)

Country Link
CN (1) CN206562977U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106837725A (en) * 2016-12-29 2017-06-13 浙江工业大学 Two-dimensional axial plunger displacement pump
CN108331890A (en) * 2017-12-29 2018-07-27 浙江工业大学 A kind of space cam Self-aligning transmission mechanism of two dimension plunger pump

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106837725A (en) * 2016-12-29 2017-06-13 浙江工业大学 Two-dimensional axial plunger displacement pump
CN108331890A (en) * 2017-12-29 2018-07-27 浙江工业大学 A kind of space cam Self-aligning transmission mechanism of two dimension plunger pump

Similar Documents

Publication Publication Date Title
CN106837725B (en) two-dimensional axial plunger pump
CN103233873B (en) External-rotor radial plunger hydraulic pump integrated with motors
CN106089621A (en) Two dimension cone roller piston pump
CN206562977U (en) Two-dimensional axial plunger pump
CN105484962A (en) Two-dimensional dual axial piston pump
CN203627076U (en) Shell rotary hydraulic motor
CN109763777B (en) Push-back type rotary guiding device
CN206092302U (en) Entry pressure boosting type two dimension pair piston pump
CN206092303U (en) Float type two dimension pair piston pump
CN205895515U (en) Two dimension awl gyro wheel piston pump
CN204591607U (en) TWO-DIMENSIONAL CIRCULAR CYLINDER guide rail axial piston pump
CN204591606U (en) Two dimension etc. such as to add at the deceleration guide rail axial piston pump
CN204755209U (en) Ration axial plunger pump
CN104791209A (en) Two-dimensional cylindrical guide rail axial piston pump
CN105864124B (en) A kind of hydraulic transformer with twin-rotor housing
CN104612963B (en) Rotating device suitable for high pressure scene and mechanical device using rotating device
CN210829061U (en) All-metal downhole power drilling tool based on multi-stage double-plunger-eccentric gear mechanism
CN107781125A (en) Float type two dimension double crosslinking piston pump
CN110593752A (en) All-metal downhole power drilling tool based on multi-stage double-plunger-eccentric gear mechanism
CN106246106A (en) A kind of pulsed hydraulic jet drilling tool
CN109441709B (en) Compact type large-torque anti-pollution gear hydraulic motor
CN209067095U (en) Blade-free mud motor
CN108194298B (en) A kind of two-dimentional plunger hydraulic pamp of water-oil separating formula rolling wheel guide rails transmission
CN105484665A (en) Gas drive liquid self-circulation gas drilling positive screw drill
CN205715002U (en) The hydraulic transformer that a kind of inner disc rotates

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
AV01 Patent right actively abandoned
AV01 Patent right actively abandoned
AV01 Patent right actively abandoned

Granted publication date: 20171017

Effective date of abandoning: 20190108

AV01 Patent right actively abandoned

Granted publication date: 20171017

Effective date of abandoning: 20190108