CN206830392U - Plunger pump and cleaning machine - Google Patents

Abstract

A kind of plunger pump, including offer shaft hole swash plate, to drive swash plate rotate rotating shaft, some plunger assemblies, rotating shaft is inserted in the shaft hole, plunger assembly directly or indirectly presses on swash plate, and swash plate is that it is directly or indirectly compressed to be defined to predetermined position relative to rotating shaft by plunger assembly.Swash plate is directly or indirectly compressed to position by plunger assembly to it in the design, beneficial to the mutual locking realized between release rotating shaft and swash plate, simplifies rotating shaft and the assembling of swash plate.

Description

Plunger pump and cleaning machine

【Technical field】

It the utility model is related to a kind of plunger pump and its corresponding cleaning machine.

【Background technology】

If common plunger pump be provided with swash plate, to drive swash plate rotate rotating shaft, be assemblied on swash plate thrust bearing, The dry plunger assembly for pressing on thrust bearing, rotating shaft is together with the direct fixing assembling of swash plate with realization to the relatively fixed of swash plate Position, can fix rotating shaft and swash plate using screw, or by the interference fit of rotating shaft and the high tight ness rating of swash plate by rotating shaft and Swash plate is fixed, but adds rotating shaft with swash plate in the process of assembling phase locking and the work of dismounting phase unblock with upper type Sequence is, it is necessary to be improved.

【Utility model content】

Problem to be solved in the utility model is to provide a kind of plunger pump for being beneficial to optimization swash plate Position Design.

In order to solve the above technical problems, the utility model adopts the following technical scheme that：A kind of plunger pump, including offer and turn The swash plate of axis hole, to drive the rotating shaft, some plunger assemblies that swash plate rotates, rotating shaft is inserted in the shaft hole, plunger assembly Swash plate directly or indirectly is pressed on, swash plate is that it is directly or indirectly compressed to be defined to relative to rotating shaft by plunger assembly Predetermined position.

Swash plate is directly or indirectly compressed to position by plunger assembly to it in the design, exempts rotating shaft beneficial to realizing Mutual locking between swash plate, simplifies rotating shaft and the assembling of swash plate.

Further, plunger pump also includes oil cylinder, pump cover, is fixed between oil cylinder and pump cover and offers plunger through hole The pump housing, the pump housing are integrally formed with the water inlet pipe towards side extension, the outlet pipe towards the extension of opposite opposite side.

Further, plunger assembly presses on swash plate indirectly, and swash plate is that it is compressed and relative indirectly by plunger assembly Predetermined position is defined in rotating shaft.

Further, plunger pump also includes the thrust bearing for being assemblied in swash plate, and thrust bearing is located at swash plate and plunger assembly Between, plunger assembly presses on thrust bearing and presses on swash plate indirectly so that swash plate is defined to predetermined position relative to rotating shaft Put.

Further, in addition to clutch shaft bearing, rotating shaft pass through the inner ring of clutch shaft bearing and mutually fixed with inner ring, and swash plate is located at Between clutch shaft bearing and thrust bearing, plunger assembly press on thrust bearing and in pressing on swash plate indirectly so that swash plate presses on Circle.

Further, in addition to oil cylinder, swash plate, thrust bearing, clutch shaft bearing are located in oil cylinder, the outer ring of clutch shaft bearing with Oil cylinder is fixed.

Further, plunger assembly includes plunger, the back-up ring located at plunger at one end, the back-moving spring for being sheathed on plunger, multiple Position spring presses on back-up ring so that plunger presses on thrust bearing towards thrust bearing.

Further, thrust bearing is thrust ball bearing, and thrust bearing includes the first ring, the second ring, positioned at first Ball retainer between ring and the second ring, multiple balls on ball retainer, the first ring are assemblied in swash plate, Between the first ring and plunger assembly, plunger assembly presses on the second ring and presses on swash plate indirectly second ring.

Further, swash plate includes first annular flange, external diameter is less than the second annular flange of first annular flange, and first Ring is assemblied in first annular flange, and the second ring is around the second annular flange.

Further, swash plate coordinates with rotating shaft gap, and the first flat position is provided with shaft hole, and rotating shaft is provided with corresponding first flat position To drive swash plate rotate the second flat position.

Further, shaft hole includes the first hole section, the second hole section, first between the first hole section and the second hole section Step surface, in the first hole section, the diameter of the first hole section is less than the diameter of the second hole section for the first flat position, and rotating shaft includes first axle Section, the second shaft part, the second step face between the first shaft part and the second shaft part, first axle section, which is located at, turns the tip of the axis, the On the outside of the first shaft part, first axle section is located at the first hole section for two flat positions, and the second shaft part is located at the second hole section, the first shaft part it is straight Footpath is less than the diameter of the second shaft part.

Further, the first shaft part and the first hole section gap coordinate, and the diameter of the first shaft part is less than the diameter of the first hole section 0.02mm to 0.08mm, the second shaft part and the second hole section gap coordinate, and the diameter of the second shaft part is less than the diameter of the second hole section 0.01mm to 0.06mm, First terrace is relative with second step face interval, and the spacing of First terrace and second step is 0.25mm to 1mm.

Further, plunger pump also includes clutch shaft bearing, and rotating shaft passes through the inner ring of clutch shaft bearing and mutually fixed with inner ring, tiltedly Disk is between clutch shaft bearing and plunger assembly, and plunger assembly directly or indirectly presses on swash plate so that swash plate presses on first axle Hold inner ring.

The utility model also provides a kind of cleaning machine, including foregoing plunger pump.

Further, cleaning machine also includes handle.

The utility model provides a kind of plunger pump, including motor, the swash plate for offering shaft hole, some plunger assemblies again, Machine shaft is inserted in the shaft hole to drive swash plate to rotate, and plunger assembly directly or indirectly presses on swash plate, is removing Plunger assembly to swash plate directly or indirectly compress after, swash plate in rotating shaft be in no-fix state.

Further, plunger pump also includes the thrust bearing for being assemblied in swash plate, and thrust bearing is located at swash plate and plunger assembly Between, plunger assembly presses on thrust bearing and presses on swash plate indirectly.

These features and advantage of the present utility model will be detailed in following embodiment, accompanying drawing exposure.

【Brief description of the drawings】

Fig. 1 is the stereogram of the utility model plunger pump；

Fig. 2 is the utility model pump cover, check valve, the schematic diagram of plug phase separation；

Fig. 3 is the stereogram of the angle of the utility model pump cover one；

Fig. 4 is the stereogram of another angle of the utility model pump cover (face first through hole)；

Fig. 5 is the stereogram of the another angle of the utility model pump cover (face Part I ends valve opening)；

The sectional view that Fig. 6 is Fig. 5 (section is the first water chamber axis and face where the first water chamber axis)；

Fig. 7 is the utility model pump cover, the schematic diagram of stop valve (check valve, plug are installed on pump cover)；

Fig. 8 is the stereogram of the angle of the utility model pump housing one；

Fig. 9 is the utility model rotating shaft, clutch shaft bearing, swash plate, the exploded view of thrust bearing；

Figure 10 is the view of another angles of Fig. 9；

Figure 11 is the sectional view of the utility model plunger pump；

Figure 12 is Figure 11 magnified partial view.

【Embodiment】

The technical scheme of the utility model embodiment is explained with reference to the accompanying drawing of the utility model embodiment and Illustrate, but following embodiments are only preferred embodiment of the present utility model, and it is not all.Based on the embodiment in embodiment, Those skilled in the art obtain other embodiment on the premise of creative work is not made, and belong to of the present utility model Protection domain.

Cleaning machine is a kind of common cleaning equipment, is usually used in cleaning automobile particularly kart, wall, ground, stand Position etc..This cleaning machine include plunger pump, shell, wheel, handle, the water inlet pipe with water swivel, the delivery hose with joint, Hydraulic giant.Wheel is located at the bottom of cleaning machine, to movable cleaning.Handle is connected to shell, and handle is located at the top of cleaning machine Or sidepiece, to movable cleaning.Shell can be plastic shell or metal shell, and plunger pump is contained in shell.Water inlet pipe is used With external water source such as running water, external water source is introduced into plunger pump.Delivery hose passes through hydraulic giant to connect plunger pump and hydraulic giant The water that plunger pump is extruded sprays.

Referring to figs. 1 to shown in Figure 12, plunger pump includes swash plate 1, motor 2, clutch shaft bearing 30, second bearing 31, thrust axis Hold 4, stop valve 50, oil cylinder 60, the pump housing 61, pump cover 7, some plunger assemblies 8.The rated power of motor 2 700w to 3500w it Between, such as 750w, 1000w, 1500w, 2000w, 2200w, 2500w, motor 2 include stator 20, rotor 21, radiator fan 22, Radiator fan 22 and swash plate 1 be located at the two opposite sides of motor 2, rotor 21 include rotating shaft 23, positioned at the peripheral rotor of rotating shaft 23 around Group 24, clutch shaft bearing 30 are located at the two opposite sides of rotor windings 24 with second bearing 31, and motor 2 also includes housing radiator fan 22 Fan guard 25, radiator fan 22 and second bearing 31 be located in fan guard 25, and fan guard 25, which has, faces radiator fan 22 Air intake vent 250, radiator fan 22 form along the projection that the projection of one the 6th direction forms with air intake vent 250 along the projection of the 6th direction Project least partially overlapped, the 6th is oriented parallel to rotating shaft 23.Swash plate 1 offers shaft hole 10, and rotating shaft 23 is inserted in described turn Axis hole 10, to drive swash plate 1 to rotate, plunger assembly 8 directly or indirectly presses on swash plate 1 to prevent swash plate 1 along rotating shaft 23 To axial movement, when plunger pump stands upside down and removes plunger assembly 8 to swash plate 1 after directly or indirectly compressing, swash plate 1 can be certainly Slid downwards along rotating shaft 23 under body Action of Gravity Field.Plunger pump handstand is that plunger pump is in following location status：Piston pump motor Rotating shaft 23 is in vertical position and swash plate 1 is in the upside of thrust bearing 4.Stop valve 50 is a kind of good check valve of sealing, energy Hydraulic pressure is kept well after closing rifle and shutting down, and keeps the pass rifle of cleaning machine to shut down beneficial to rifle pressurize is closed.

Rotating shaft 23 through clutch shaft bearing 30 inner ring 300 and fixed with the phase of inner ring 300, swash plate 1 be located at clutch shaft bearing 30 and Between plunger assembly 8, plunger assembly 8 directly or indirectly presses on swash plate 1 so that swash plate 1 presses on the inner ring 300 of clutch shaft bearing 30. Plunger assembly 8 presses on swash plate 1 indirectly in present embodiment, when plunger pump stands upside down and removes plunger assembly 8 to the indirect of swash plate 1 After compressing, swash plate 1 can slide downwards under self gravitation effect along rotating shaft 23.

Thrust bearing 4 is assemblied in swash plate 1, and between swash plate 1 and plunger assembly 8, plunger assembly 8 compresses thrust bearing 4 Swash plate 1 is pressed on indirectly in thrust bearing 4, and it is compressed to thrust bearing 4 when plunger pump stands upside down and removes plunger assembly 8 Afterwards, swash plate 1 can slide downwards with thrust bearing 4 under self gravitation effect along rotating shaft 23.Swash plate 1 be located at clutch shaft bearing 30 with Between thrust bearing 4, plunger assembly 8 presses on thrust bearing 4 and presses on swash plate 1 indirectly so that swash plate 1 presses on inner ring 300。

Swash plate 1, thrust bearing 4, clutch shaft bearing 30 are located in oil cylinder 60, and rotating shaft 23 is extended into oil cylinder 60, clutch shaft bearing 30 outer ring 301 is fixed with oil cylinder 60.

Plunger assembly 8 includes plunger, and (present embodiment plunger pump is three ram type pumps, can be by these for ease of subsequent descriptions Plunger is divided into the first plunger 80, the second plunger 81, the 3rd plunger (not shown)), located at plunger at one end back-up ring (including located at First back-up ring 82 of one plunger 80, the second back-up ring 83 located at the second plunger 81, it is correspondingly arranged at the third gear circle of the 3rd plunger (not Diagram)), the back-moving spring that is sheathed on plunger (including is placed on the (the first back-moving spring 84 of the first plunger 80, is placed on the second plunger 81 Second back-moving spring 85, be correspondingly placed on the 3rd back-moving spring (not shown) of the 3rd plunger), back-moving spring is towards thrust bearing 4 press on back-up ring so that plunger presses on thrust bearing 4.Thrust bearing 4 is thrust ball bearing in present embodiment, thrust bearing 4 include being assemblied in the first ring 40, the second ring 41, the ball between the first ring 40 and the second ring 41 of swash plate 1 Retainer 42, multiple balls 43 on ball retainer 42, in a ring, the second ring 41 is located at first to ball retainer 42 Between ring 40 and plunger assembly 8, plunger assembly 8 presses on the second ring 41 and presses on swash plate 1 indirectly, when plunger pump stands upside down And plunger assembly 8 is removed to after the compressing of the second ring 41, swash plate 1 and thrust bearing 4 can be under self gravitation effects from turning Dropped on axle 23, plunger assembly 8 directly or indirectly presses on swash plate 1 to prevent swash plate 1 along rotating shaft 23 to the side away from motor 2 To movement, when plunger pump stands upside down and removes plunger assembly 8 to swash plate 1 after directly or indirectly compressing, swash plate 1 can be in itself weight Dropped under power effect from rotating shaft 23.When plunger pump stands upside down and removes plunger assembly 8 to thrust bearing 4 after compressing, swash plate 1 It can be dropped with thrust bearing 4 under self gravitation effect.Swash plate 1 is that it is directly or indirectly compressed and phase by plunger assembly 8 Predetermined position is defined to for rotating shaft 23.Remove plunger assembly 8 to swash plate 1 directly or indirectly compress after, swash plate 1 The state of no-fix is in rotating shaft 23, the state of no-fix is that swash plate 1 can move up in the axle of rotating shaft 23.

Swash plate 1 include first annular flange 11, the second annular flange 12, the 3rd annular flange 13, annular tilting body 14, Some reinforcements 15 (shown in ginseng Fig. 9, there is 8 reinforcements 15, these reinforcements 15 are looped around the periphery of the 3rd annular flange 13), the The external diameter of second ring flange 12 is less than first annular flange 11, and the first ring 40 is assemblied in first annular flange 11, the second ring 41 Around the second annular flange 12, first annular flange 11 is located at opposite the two of annular tilting body 14 with the 3rd annular flange 13 Side, the first ring 40 are resisted against in the inclined plane 140 of annular tilting body 14, the annular flange 13 of reinforcement 15 and the 3rd and annular Tilting body 14 connects respectively.3rd annular flange 13 presses on the inner ring 300 of clutch shaft bearing 30.

Swash plate 1 coordinates with the gap of rotating shaft 23, the first flat position 100 is provided with shaft hole 10, it is flat that rotating shaft 23 is provided with corresponding first Position 100 to drive the second flat position 230 that swash plate 1 rotates, radiator fan 22 is fixed on one end of rotating shaft 23, radiator fan 22 It is located at the opposite end of rotating shaft 23 with the second flat position 230, the first flat position 100 faces the second flat position 230, when rotating shaft 23 rotates, the Rotatory force is passed to the second flat position 230 by one flat position 100, to drive swash plate 1 to rotate by the second flat position 230.Shaft hole 10 wraps The first hole section 101, the second hole section 102, the First terrace 103 between the first hole section 101 and the second hole section 102 are included, the In the first hole section 101, the diameter of the first hole section 101 is less than the diameter of the second hole section 102 for one flat position 100, and rotating shaft 23 includes First shaft part 231, the second shaft part 232, the second step face 233 between the first shaft part 231 and the second shaft part 232, first Shaft part 231 is located at the end of rotating shaft 23, and the second flat position 230 is inserted in first located at the outside of the first shaft part 231, the first shaft part 231 Hole section 101, the second shaft part 232 are inserted in the second hole section 102, and the diameter of the first shaft part 231 is less than the diameter of the second shaft part 232. First shaft part 231 and the gap of the first hole section 101 coordinate, and the diameter of the first shaft part 231 is less than the diameter 0.02mm of the first hole section 101 To 0.08mm, preferably 0.03mm or 0.04mm；Second shaft part 232 and the gap of the second hole section 102 coordinate, the second shaft part 232 Diameter is less than the diameter 0.01mm to 0.06mm, preferably 0.02mm of the second hole section 102；Above gap taken into account easy disassembly and To the smooth drive of swash plate 1, the drive swash plate 1 that realizing rotating shaft 23 can stablize rotates for rotating shaft 23, oblique easily can directly incite somebody to action Disk 1 is enclosed in rotating shaft 23, easily directly can be removed swash plate 1 from rotating shaft 23 after removing plunger assembly when needing dismounting. First terrace 103 and second step face 233 are spaced relatively, the spacing of First terrace 103 and second step be 0.25mm extremely 1mm, preferably 0.5mm.A diameter of 14mm of first shaft part 231, a diameter of 15mm of the second shaft part 232.

The pump housing 61 is fixed between oil cylinder 60 and pump cover 7, and the pump housing 61 offers some plunger through holes, and the pump housing 61 is provided with The water inlet 611 of side, the delivery port 612 towards opposite opposite side；The pump housing 61 is integrally formed with the water inlet pipe towards side extension 613rd, it is located at the end of water inlet pipe 613 towards the outlet pipe 614 of opposite opposite side extension, water inlet 611, delivery port 612 is located at The end of water pipe 614.

In present embodiment swash plate 1 be it is compressed indirectly by plunger assembly 8 it is pre- to be defined to relative to rotating shaft 23 Fixed position, further, plunger assembly 8 press on thrust bearing 4 and press on indirectly swash plate 1 cause swash plate 1 relative to turn Axle 23 is defined to predetermined position.After removing some plunger assemblies 8, swash plate 1 is in no-fix relative to rotating shaft 4 State and directly swash plate 1 can be removed from rotating shaft 23 together with thrust bearing 4；Removing supporting for plunger assembly 8 in the prior art Swash plate 1 can not be directly removed after pressure, it is necessary to which first the locked mechanism between releasing swash plate 1 and rotating shaft 23 or tight interference engage, Swash plate 1 can be removed from rotating shaft 23.

Pump cover 7 is provided with the first water chamber 70, the second water chamber 71, the 3rd water chamber 72, the first cavity wall 73, the second cavity wall 74th, first through hole 75, the second through hole 76, the first cavity wall 73 are spaced the first water chamber 70 and the second water chamber 71, the second cavity wall 74 It is spaced the second water chamber 71 and the 3rd water chamber 72, first through hole 75 is through the first cavity wall 73 to connect the first water chamber 70 and the Two water chambers 71, the second through hole 76 is through the second cavity wall 74 with the second water chamber 71 of connection and the 3rd water chamber 72, the first water outlet The outer end of chamber 70 is provided with first port 700, and the outer end of the second water chamber 71 is provided with second port 710, the 3rd water chamber 72 it is outer End is provided with the 3rd port 720, and the projection that first port 700 forms along first direction projection can cover first through hole 75 by shadow completely The projection projected in the first direction, first direction hang down parallel to the axis A of first through hole 75, the axis A of first through hole 75 Directly it is contained in first port 700 in rotating shaft 23, the projection that first through hole 75 projects in the first direction and projects in the first direction The projection formed.The axis C of first water chamber 70 is perpendicular to rotating shaft 23, and the axis D of the second water chamber 71 is perpendicular to rotating shaft 23, and The axis E of three water chamber 72 is perpendicular to rotating shaft 23, and the axis C of the first water chamber 70 is parallel to the axis E of the 3rd water chamber 72, and The axis D of two water chamber 71 is parallel to the axis E of the 3rd water chamber 72.

The projection that second port 710 forms along second direction projection can be completely covered the second through hole 76 and throw in a second direction The projection penetrated, second direction is parallel to the axis B of the second through hole 76, the throwing that the second through hole 76 projects in a second direction Shadow is contained in the projection that second port 710 projects in a second direction.First water chamber 70, the second water chamber the 71, the 3rd go out Water cavity 72 is set up in parallel, and the second water chamber 71 is between the first water chamber 70 and the 3rd water chamber 72, the axis of first through hole 75 Line A is parallel to the axis B of the second through hole 76.First port 700, second port 710, the 3rd port 720 are alignd, first port 700th, second port 710, the 3rd port 720 are arranged in a row.First through hole 75 is overlapping with the second through hole 76 on one the 5th direction, Perpendicular to the axis C of the first water chamber 70, the 5th is oriented parallel to the axis C of the first water chamber 70 and the second water outlet in 5th direction Plane where the axis D of chamber 71, the 5th direction tilt with the axis A of first through hole 75, the axis A of first through hole 75 and the 5th side To in 35 degree to 50 degree angles.Drilling of the first through hole 75 for inclination towards first port 700.The axis A of first through hole 75 with The axis C of first water chamber 70 is in 40 degree to 55 degree angles.The center of first connected entrance 750 to first port 700 vertical range Less than the vertical range 3.5mm-6mm at the center of the second connected entrance 751 to first port 700.First through hole 75 is through by drill bit Single port 700 drills out after entering the first water chamber 70, and the second through hole 76 is to enter the second water chamber through second port 710 by drill bit Drilled out after 71.First through hole 75 runs through the first cavity wall 73 to tilt, first through hole 75 towards first port 700 inclined hole, second Through hole 76 is the inclined hole towards second port 710.Second through hole 76, which tilts, runs through the second cavity wall 74.Second through hole 76 can be to incline Tiltedly towards the drilling of second port 710.First through hole 75, the second through hole 76 can also be hole that the hole that mills out, laser are outputed etc., excellent Elect drilling as.

First through hole 75 is circular hole, including the first connected entrance 750 and the second connected entrance 751 positioned at its opposite end, the One connected entrance 750 between the second connected entrance 751 and the first water chamber 70, on a third direction the first connected entrance 750 and Second connected entrance 751 staggers completely with first port 700 respectively, the first connected entrance 750 and the second connected entrance on third direction 751 partly overlap or stagger completely, and third direction is perpendicular to the axis C of the first water chamber 70 and parallel to the first water chamber Plane where the 70 axis C and axis D of the second water chamber 71.First connected entrance 750 and the second connected entrance 751 tilt relatively, Second connected entrance 751 is exposed to first port 700 via the first connected entrance 750.Second through hole 76 is circular hole, and the second through hole 76 wraps Include positioned at its opposite end and tilt the relative connected entrance 761 of third connecting mouth 760 and the 4th, third connecting mouth 760 is located at Between 4th connected entrance 761 and the second water chamber 71, the 4th connected entrance 761 is exposed to second port via third connecting mouth 760 710 or third connecting mouth 760 be exposed to the 3rd port 720 via the 4th connected entrance 761.First through hole 75 is logical parallel to second Hole 76, so it is beneficial to forming through hole more efficiently.

It is also designed to：The edge of the second through hole 76 can be completely covered in the projection that 3rd port 720 projects in a second direction The projection that forms of second direction projection, first through hole 75 in the second through hole 76 with being symmetrical arranged, the axis A of first through hole 75 and the The axis B of two through hole 76 is in 80 degree to 100 degree angles, and the projection that the 3rd port 720 projects in a second direction can be covered completely The projection that the second through hole of lid 76 projects in a second direction, drilling of second through hole 76 for inclination towards the 3rd port 720, the Two through holes 76 are to be drilled out by drill bit after the 3rd port 720 enters the 3rd water chamber 72, and the second through hole 76 is towards the 3rd port 720 inclined hole, third connecting mouth 760 are exposed to the 3rd port 720 via the 4th connected entrance 761.

Pump cover 7 also includes ending valve opening 77, Part I cut-off valve opening to the Part I of partial receipt stop valve 50 77 are connected with the second water chamber 71, and Part I cut-off valve opening 77 is extended from the surface of pump cover 7 into pump cover 7.First water chamber 70 Connected successively by first through hole 75, the second water chamber 71 with Part I cut-off valve opening 77, the 3rd water chamber 72 passes through successively Second through hole 76, the second water chamber 71 connect with Part I cut-off valve opening 77.Part I cut-off valve opening 77 includes hole main body 770th, the 4th intercommunicating pore 771, pump cover 7 also include the second water chamber of interval 71 and the 3rd cavity wall 78 of hole main body 770, the 4th connection Hole 771 is through the 3rd cavity wall 78 with the second water chamber of connection 71 and hole main body 770.The Part I stop valve in a fourth direction Hole 77 partly overlaps with the second water chamber 71 and staggered completely with the first water chamber 70, and fourth direction is perpendicular to the first water chamber Plane where the 70 axis C and axis D of the second water chamber 71, Part I cut-off valve opening 77 goes out with the 3rd in fourth direction Water cavity 72 staggers completely.Fourth direction is parallel to rotating shaft 23.

Pump cover 7 also includes the first plunger hole 790, the second plunger hole 791, the 3rd plunger hole 792, the first intercommunicating pore 793, the Two intercommunicating pores 794, third connecting hole 795, the first inlet opening 796, the second inlet opening 797, the 3rd inlet opening 798, the first water inlet Hole 796 extends to the first intercommunicating pore 793, and the first water intaking valve of partial receipt of the first inlet opening 796, the second inlet opening 797 extends to Second intercommunicating pore 794, the second water intaking valve of partial receipt 57 of the second inlet opening 797, the 3rd inlet opening 798 extends to third connecting hole 795, the water intaking valve of 798 partial receipt of the 3rd inlet opening the 3rd, the first plunger hole 790 and the indirect communication of the first water chamber 70, second The indirect communication of 791 and second water chamber of plunger hole 71, the 3rd plunger hole 792 and the indirect communication of the 3rd water chamber 72, the first connection Hole 793 extends to the first plunger hole 790 from the first water chamber 70, and the second intercommunicating pore 794 extends to second from the second water chamber 71 Plunger hole 791, third connecting hole 795 extend to the 3rd plunger hole 792 from the 3rd water chamber 72, and first port 700 and first connects Through hole 793 is located at the two opposite sides of the first water chamber 70, and the intercommunicating pore 794 of second port 710 and second is located at the second water chamber 71 Two opposite sides, the 3rd port 720 is located at the two opposite sides of the 3rd water chamber 72 with third connecting hole 795.

Plunger pump also includes the first plug 51, the second plug 52, the 3rd plug 53, the first plug 51, the second plug 52, the Three plugs 53 can be separate or Contiuum type, and the first plug 51 is threadedly connected to the spiral shell in the first water chamber 70 Line, the second plug 52 are threadedly connected to the screw thread in the second water chamber 71, and the 3rd plug 53 is threadedly connected to the 3rd water chamber 72 Interior screw thread, the first plug 51 closure first port 700, the second plug 52 closure second port 710, the 3rd plug 53 closure the Three ports 720, the pump housing 61 are assembled together with pump cover 7, and the pump housing 61 is provided with the first plunger through hole passed through for the first plunger 80 615th, the second plunger through hole 616 for being passed through for the second plunger 81, the 3rd plunger through hole 618 passed through for the 3rd plunger, to portion Divide the Part II cut-off valve opening 619 for housing stop valve 50.Part I ends valve opening 77 and ends the phase of valve opening 619 with Part II Right, both form complete cut-off valve opening to house whole stop valve 50.Plunger pump also includes that the can be loaded by first port 700 First check valve 54 of one water chamber 70, the second check valve 55 that the second water chamber 71 can be loaded by second port 710, can be by Three ports 720 load the 3rd check valve 56 of the 3rd water chamber 72.First check valve 54, the second check valve 55, the 3rd check valve 56 can be separate or Contiuum type.

During plunger pump work, liquid (such as water) enters plunger pump by water inlet pipe 613, then divides three tunnels, all the way liquid by First inlet opening 796 enters the first intercommunicating pore 793, under the pressurization of the first plunger 80, successively by the first intercommunicating pore 793, the One check valve 54 enters the first water chamber 70, then enters the second water chamber 71 by first through hole 75；Liquid is by the second water inlet all the way Hole 797 enters the second intercommunicating pore 794, after the pressurization of the second plunger 81, successively by the second intercommunicating pore 794, the second check valve 55 enter the second water chamber 71；Liquid enters third connecting hole 795 by the 3rd inlet opening 798 all the way, in the pressurization of the 3rd plunger Under, enter the 3rd water chamber 72 by third connecting hole 795, the 3rd check valve 56 successively, then enter second by the second through hole 76 Water chamber 71；The liquid of the second water chamber 71 is imported through stop valve 50 further downstream after stop valve 50, further stream Outlet pipe 614 is crossed, is finally sprayed through hydraulic giant.

More than, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited thereto, It is familiar with the those skilled in the art and should be understood that the utility model includes but is not limited in accompanying drawing and above embodiment The content of description.Any modification without departing from function and structure principle of the present utility model is intended to be included in the model of claims In enclosing.

Claims (17)

1. a kind of plunger pump, including offer the swash plate of shaft hole, to drive the rotating shaft of swash plate rotation, some plunger assemblies, Rotating shaft is inserted in the shaft hole, it is characterised in that：Plunger assembly directly or indirectly presses on swash plate, and swash plate is by plunger group Part directly or indirectly compresses to it and predetermined position is defined to relative to rotating shaft.

2. plunger pump according to claim 1, it is characterised in that：Also include oil cylinder, pump cover, be fixed on oil cylinder and pump cover it Between the pump housing for offering plunger through hole, the pump housing be integrally formed with towards side extension water inlet pipe, towards opposite opposite side extend Outlet pipe.

3. plunger pump according to claim 1, it is characterised in that：Plunger assembly presses on swash plate indirectly, and swash plate is to pass through Plunger assembly compresses and predetermined position is defined to relative to rotating shaft indirectly to it.

4. plunger pump according to claim 3, it is characterised in that：Also include the thrust bearing for being assemblied in swash plate, thrust axis Hold between swash plate and plunger assembly, plunger assembly press on thrust bearing and press on indirectly swash plate cause swash plate relative to Rotating shaft is defined to predetermined position.

5. plunger pump according to claim 4, it is characterised in that：Also include clutch shaft bearing, rotating shaft passes through clutch shaft bearing Inner ring is simultaneously mutually fixed with inner ring, swash plate between clutch shaft bearing and thrust bearing, plunger assembly press on thrust bearing and Connect and press on swash plate so that swash plate presses on inner ring.

6. plunger pump according to claim 5, it is characterised in that：Also include oil cylinder, swash plate, thrust bearing, clutch shaft bearing In oil cylinder, outer ring and the oil cylinder of clutch shaft bearing are fixed.

7. plunger pump according to claim 4, it is characterised in that：Plunger assembly includes plunger, the gear located at plunger at one end The back-moving spring of plunger is enclosed, is sheathed on, back-moving spring presses on back-up ring so that plunger presses on thrust bearing towards thrust bearing.

8. plunger pump according to claim 4, it is characterised in that：Thrust bearing is thrust ball bearing, and thrust bearing includes It is first ring, the second ring, the ball retainer between the first ring and the second ring, more on ball retainer Individual ball, the first ring are assemblied in swash plate, and for the second ring between the first ring and plunger assembly, plunger assembly presses on Two rings and press on swash plate indirectly.

9. plunger pump according to claim 8, it is characterised in that：Swash plate includes first annular flange, external diameter is less than first Second annular flange of annular flange, the first ring are assemblied in first annular flange, and the second ring is around the second annular flange.

10. plunger pump according to claim 1, it is characterised in that：Swash plate and rotating shaft gap coordinate, and the is provided with shaft hole One flat position, rotating shaft be provided with corresponding first flat position driving the second flat position that swash plate rotates.

11. plunger pump according to claim 10, it is characterised in that：Shaft hole includes the first hole section, the second hole section, is located at First terrace between first hole section and the second hole section, in the first hole section, the diameter of the first hole section is less than for the first flat position The diameter of second hole section, rotating shaft include the first shaft part, the second shaft part, the second step between the first shaft part and the second shaft part Face, first axle section is positioned at turning the tip of the axis, and on the outside of the first shaft part, first axle section is located at the first hole section for the second flat position, and second Shaft part is located at the second hole section, and the diameter of the first shaft part is less than the diameter of the second shaft part.

12. plunger pump according to claim 10, it is characterised in that：First shaft part and the first hole section gap coordinate, and first The diameter of shaft part is less than the diameter 0.02mm to 0.08mm of the first hole section, and the second shaft part and the second hole section gap coordinate, the second axle The diameter of section is less than the diameter 0.01mm to 0.06mm of the second hole section, and First terrace is relative with second step face interval, and first The spacing of step surface and second step is 0.25mm to 1mm.

13. plunger pump according to claim 1, it is characterised in that：Also include clutch shaft bearing, rotating shaft passes through clutch shaft bearing Inner ring is simultaneously mutually fixed with inner ring, and between clutch shaft bearing and plunger assembly, plunger assembly directly or indirectly presses on tiltedly swash plate Disk causes swash plate to press on clutch shaft bearing inner ring.

A kind of 14. cleaning machine, it is characterised in that：Including the plunger pump according to claim 1 to any one of claim 13.

15. cleaning machine according to claim 14, it is characterised in that：Also include handle.

16. a kind of plunger pump, including motor, the swash plate for offering shaft hole, some plunger assemblies, machine shaft is inserted in described Shaft hole is driving swash plate to rotate, it is characterised in that：Plunger assembly directly or indirectly presses on swash plate, is removing plunger assembly To swash plate directly or indirectly compress after, swash plate in rotating shaft be in no-fix state.

17. plunger pump according to claim 16, it is characterised in that：Also include the thrust bearing for being assemblied in swash plate, thrust Between swash plate and plunger assembly, plunger assembly presses on thrust bearing and presses on swash plate indirectly bearing.