CN113775498A - Axial pump of high-pressure cleaning machine - Google Patents
Axial pump of high-pressure cleaning machine Download PDFInfo
- Publication number
- CN113775498A CN113775498A CN202111191847.9A CN202111191847A CN113775498A CN 113775498 A CN113775498 A CN 113775498A CN 202111191847 A CN202111191847 A CN 202111191847A CN 113775498 A CN113775498 A CN 113775498A
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- China
- Prior art keywords
- plunger
- pressure
- pump
- water inlet
- axial
- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/128—Driving means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
Abstract
The invention belongs to the technical field of high-pressure cleaning machines, and relates to an axial pump of a high-pressure cleaning machine, which comprises a motor and a pump mechanism, wherein the pump mechanism comprises a pump body, and a water inlet cavity, a high-pressure cavity and a water outlet cavity which are arranged in the pump body, a plurality of plunger units are circumferentially arranged in the pump body, each plunger unit comprises a plunger cavity and a plunger sliding in the plunger cavity, the axes of the plungers are distributed along the radial direction of the pump body, the eccentric structure at the output end of the motor drives the plungers to sequentially reciprocate, and each plunger unit corresponds to an independent water inlet unit connected with the water inlet cavity and the high-pressure cavity. The axial pump of the high-pressure cleaning machine provided by the invention has the advantages that the power output is more consistent and stable, and the volume of the pump is reduced.
Description
Technical Field
The invention belongs to the technical field of high-pressure cleaning machines, and relates to an axial pump of a high-pressure cleaning machine.
Background
The conventional high-pressure washer generally uses a crankshaft plunger pump, and a displacement pump for repeatedly sucking and discharging a liquid and increasing the pressure of the liquid by utilizing the reciprocating motion of a plunger in a pump body and changing the volume between the plunger and a pump wall. The plunger drives the pump to alternately suck water and press water continuously through continuous reciprocating motion. The structure is generally as follows: the plunger is connected with a crankshaft in the crankcase, a plurality of cams are arranged on the crankshaft side by side and connected with corresponding cams, the cams rotating at high speed push the plungers uniformly distributed to do high-frequency reciprocating motion, and the water is pressurized by compression of the plungers, so that the water discharged from the pump body is obviously pressurized, and high-pressure water for cleaning is generated. The disadvantages of this structure are: the volume of the pump is increased by the arrangement of the crankshaft and the crankcase, the driving mode that the crankshaft and the cam push the plunger is not stable enough, the pressure loss is large, and the power output is not coherent and stable enough.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the axial pump of the high-pressure cleaning machine, the power output is more consistent and stable, and the volume of the pump is reduced.
In order to solve the above technical problems, the object of the present invention is achieved by the following technical solutions:
the utility model provides a high pressure cleaner's axial pump, includes motor and pump mechanism, pump mechanism includes the pump body and sets up intake antrum, high pressure chamber and play water cavity in the pump body, circumference is provided with a plurality of plunger units in the pump body, the plunger unit includes the plunger chamber and slides the plunger in the plunger intracavity, the radial distribution of the axis along the pump body of plunger, the eccentric structure drive plunger of motor output end comes and goes in proper order, every the plunger unit all corresponds an independent water intake unit of connecting intake antrum and high pressure chamber.
In the above axial pump of the high pressure washer, the plunger units and the water inlet units are uniformly distributed in the circumferential direction, and the number of the plunger units and the water inlet units is preferably three.
In the axial pump of the high-pressure cleaning machine, the water inlet unit comprises a water inlet one-way valve and a high-pressure one-way valve, the water inlet one-way valve is connected with the water inlet cavity and the plunger cavity, and the high-pressure one-way valve is connected with the plunger cavity and the high-pressure cavity.
In the above-mentioned axial pump of high pressure cleaner, the check valve that intakes is installed in the check valve mount pad that intakes of the pump body, and high-pressure check valve installs in the high-pressure check valve mount pad of the pump body, the axial setting of the pump body is all followed to check valve mount pad and high-pressure check valve mount pad of intaking.
In the axial pump of the high-pressure cleaning machine, the output shaft of the motor is an eccentric shaft, a driving bearing is sleeved on the output shaft, and the peripheral surface of the driving bearing is in contact connection with the end surface of the plunger. The motor can also adopt a structure that the output shaft is sleeved with the cam instead of using an eccentric shaft.
In the above axial pump of the high pressure cleaning machine, an eccentric weight block is fixed to the output shaft of the motor, and preferably, the weight block is fixed to an end surface of the output shaft.
In the axial pump of the high-pressure cleaning machine, the pump body is provided with the plunger installation seat, the plunger unit is arranged in the plunger installation seat, the plunger is sleeved with the plunger sleeve, the plunger sleeve is in sealing connection with the plunger installation seat through the sealing ring, one end of the plunger close to the motor output shaft is provided with the spring seat, and the plunger spring is arranged between the spring seat and the plunger sleeve.
In foretell high pressure cleaner's axial pump, be provided with the oil blanket between plunger and the plunger bushing, the one end that the motor output shaft was kept away from to the plunger overlaps in proper order and is equipped with vice sealed and main water seal, vice sealed respectively through sealing washer and plunger mount pad sealing connection, main water seal is lip seal.
In the above axial pump of the high pressure cleaning machine, the pump body is provided with an oil hole for injecting lubricating oil for the movement of the plunger.
In the axial pump of the high-pressure cleaning machine, each group of the water inlet check valve mounting seat, the high-pressure check valve mounting seat and the plunger mounting seat are connected into a whole and protrude out of the outer surface of the pump body.
In foretell high pressure cleaner's axial pump, one side that the motor was kept away from to the pump body is provided with axial inlet tube and outlet pipe, the inlet tube is connected with the intake antrum, and the outlet pipe is connected with out the water cavity, it is provided with out the water check valve to go out between water cavity and the high-pressure chamber.
In the axial pump of the high-pressure cleaning machine, the water inlet cavity and the high-pressure cavity are both annular cavities coaxial with the pump body, the high-pressure cavity is provided with a radial connecting channel, and preferably, the water inlet cavity is located on one side far away from the motor relative to the high-pressure cavity.
In foretell high pressure cleaner's axial pump, the pump body is kept away from one side of motor and is provided with axial pressure regulating valve mount pad, install the air-vent valve in the pressure regulating valve mount pad, the case of air-vent valve is located the high-pressure chamber.
Compared with the prior art, the invention has the following beneficial effects:
the axial pump changes the traditional crankshaft pump of a high-pressure cleaning machine, provides an axial pump with a brand new structure, drives the circumferentially distributed plungers to reciprocate in sequence through the eccentric structure of the motor, and provides more coherent, stable and efficient power output through the more symmetrical structural distribution and a more concise driving mode. Meanwhile, the size of the pump body is greatly reduced by canceling a crankshaft structure and further optimizing the layout.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is a radial cross-sectional view of the present invention taken along the intake chamber;
FIG. 4 is a radial cross-sectional view of the present invention taken along the high pressure chamber;
FIG. 5 is a radial cross-sectional view of the present invention taken along the high pressure chamber;
FIG. 6 is an axial cross-sectional view of the present invention;
FIG. 7 is an axial cross-sectional view in another direction of the present invention;
FIG. 8 is a view of the plunger drive configuration of the present invention;
reference numerals: 1. a motor; 2. a pump body; 3. a water inlet cavity; 4. a high pressure chamber; 5. a water outlet cavity; 6. a plunger cavity; 7. a plunger; 8. a water inlet one-way valve; 9. a high pressure check valve; 10. a water inlet check valve mounting seat; 11. a high-pressure one-way valve mounting seat; 12. an output shaft; 2113. a drive bearing; 14. a balancing weight; 15. a plunger mounting seat; 16. a plunger sleeve; 17. a spring seat; 18. a plunger spring; 19. oil sealing; 20. secondary sealing; 21. a main water seal; 22. a water inlet pipe; 23. a water outlet pipe; 24. a water outlet one-way valve; 25. a connecting channel; 26. a pressure regulating valve mounting seat; 27. a pressure regulating valve.
Detailed Description
The invention is further described in the following with specific embodiments in conjunction with the accompanying drawings, see fig. 1-8:
the utility model provides a high pressure cleaner's axial pump, includes motor 1 and pump mechanism, the pump mechanism includes the pump body 2 and sets up intake antrum 3, high-pressure chamber 4 and play water cavity 5 in the pump body 2, the periphery is provided with a plurality of plunger units in the pump body 2, the plunger unit includes plunger chamber 6 and slides plunger 7 in plunger chamber 6, the radial distribution of the pump body 2 is followed to the axis of plunger 7, the eccentric structure drive plunger 7 of the 1 output of motor is reciprocating motion in proper order, every the plunger 7 unit all corresponds an independent water intake unit of connecting intake antrum 3 and high-pressure chamber 4.
The plunger units and the water inlet units are uniformly distributed along the circumferential direction, and in the embodiment, the number of the plunger units and the number of the water inlet units are three.
The water inlet unit comprises a water inlet check valve 8 and a high-pressure check valve 9, the water inlet check valve 8 is connected with the water inlet cavity 3 and the plunger cavity 6, and the high-pressure check valve 9 is connected with the plunger cavity 6 and the high-pressure cavity 4.
One side that motor 1 was kept away from to above-mentioned pump body 2 is provided with axial inlet tube 22 and outlet pipe 23, inlet tube 22 is connected with intake antrum 3, and outlet pipe 23 is connected with play water cavity 5, it is provided with out water check valve 24 to go out between water cavity 5 and the high-pressure chamber 4.
The working process of the invention is as follows: the motor 1 drives the plunger 7 to move back and forth in sequence, when the plunger 7 moves towards the direction close to the output shaft 12, the volume of the plunger cavity 6 is enlarged, the high-pressure one-way valve 9 is closed, the water inlet one-way valve 8 is opened, and cleaning water enters the water inlet cavity 3 from the water inlet pipe 22 and enters the plunger cavity 6 after passing through the water inlet one-way valve 8; when the plunger 7 moves towards the direction far away from the output shaft 12, the volume of the plunger cavity 6 is reduced, the high-pressure one-way valve 9 is opened, the water inlet one-way valve 8 is closed, and water in the plunger cavity 6 enters the high-pressure cavity 4 through the high-pressure one-way valve 9; when the plunger 7 reciprocates in turn, the cleaning water continuously flows into the high-pressure cavity 4, the water in the high-pressure cavity 4 is continuously pressurized, the water outlet one-way valve 24 is opened, and the cleaning water is continuously sprayed out from the water outlet pipe 23.
The installation mode of the water inlet check valve 8 and the high-pressure check valve 9 in the embodiment is as follows: the water inlet check valve 8 is installed in a water inlet check valve installation seat 10 of the pump body 2, the high-pressure check valve 9 is installed in a high-pressure check valve installation seat 11 of the pump body 2, and the water inlet check valve installation seat 10 and the high-pressure check valve installation seat 11 are both arranged along the axial direction of the pump body 2. The plunger 7 unit is mounted in the following manner: the pump body 2 is provided with a plunger mounting seat 15, and the plunger unit is arranged in the plunger mounting seat 15. Furthermore, each water inlet check valve mounting seat 10, the high-pressure check valve mounting seat 11 and the plunger mounting seat 15 are connected into a whole and protrude out of the outer surface of the pump body 2.
The plunger unit has the specific structure that a plunger sleeve 16 is sleeved on the plunger 7, the plunger sleeve 16 is in sealing connection with the plunger mounting seat 15 through a sealing ring, a spring seat 17 is arranged at one end of the plunger 7 close to the output shaft 12 of the motor 1, and a plunger spring 18 is arranged between the spring seat 17 and the plunger sleeve 16.
The sealing structure of the plunger unit is as follows: an oil seal 19 is arranged between the plunger 7 and the plunger sleeve 16, an auxiliary seal 20 and a main water seal 21 are sequentially sleeved at one end, far away from the output shaft 12 of the motor 1, of the plunger 7, the auxiliary seal 20 is in sealing connection with the plunger 7 and the plunger mounting seat 15 through sealing rings respectively, and the main water seal 21 is a lip-shaped sealing ring. By means of the multiple sealing structures, the plunger unit can be better sealed, and water in the plunger cavity 6 and oil in the plunger sleeve 16 are prevented from leaking.
In order to facilitate the injection of the lubricant, the pump body 2 is provided with a filler point for injecting the lubricant for the movement of the plunger 7.
Referring to fig. 5, 6 and 8, an output shaft 12 of the motor 1 is an eccentric shaft, a driving bearing 13 is sleeved on the output shaft 12, an outer circumferential surface of the driving bearing 13 is in contact connection with an end surface of the plunger 7, and during operation, the output shaft 12 drives the driving bearing 13 to eccentrically rotate, so as to sequentially drive the plunger 7 to reciprocate.
In order to make the rotation of the output shaft 12 more balanced and stable, an eccentric weight 14 is fixed on the output shaft 12 of the motor 1, and preferably, the weight 14 is fixed on the end surface of the output shaft 12.
Comparing fig. 3 and fig. 4, the water inlet cavity 3 and the high pressure cavity 4 are both annular cavities coaxial with the pump body 2, the high pressure cavity 4 is provided with a radial connecting channel 25, the connecting channel 25 facilitates the connection of the high pressure cavity 4 with the water outlet cavity 5 and the pressure regulating valve 27, and preferably, the water inlet cavity 3 is located on one side far away from the motor 1 relative to the high pressure cavity 4.
Compared with the attached drawing 7, one side of the pump body 2, which is far away from the motor 1, is provided with an axial pressure regulating valve mounting seat 26, a pressure regulating valve 27 is mounted in the pressure regulating valve mounting seat 26, and a valve core of the pressure regulating valve 27 is located in the high-pressure cavity 4.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (10)
1. The utility model provides a high pressure cleaner's axial pump, includes motor (1) and pump mechanism, the pump mechanism includes the pump body (2) and sets up intake antrum (3), high pressure chamber (4) and play water cavity (5) in the pump body (2), its characterized in that, the periphery is provided with a plurality of plunger units in the pump body (2), the plunger unit includes plunger chamber (6) and slides plunger (7) in plunger chamber (6), the radial distribution of the axis along the pump body (2) of plunger (7), eccentric structure drive plunger (7) of motor (1) output reciprocate in proper order, every the plunger unit all corresponds an independent water inlet unit of connecting intake antrum (3) and high pressure chamber (4).
2. Axial pump of a high-pressure washer according to claim 1, characterized in that the water inlet unit comprises a water inlet check valve (8) and a high-pressure check valve (9), the water inlet check valve (8) connects the water inlet chamber (3) and the plunger chamber (6), and the high-pressure check valve (9) connects the plunger chamber (6) and the high-pressure chamber (4).
3. The axial pump of the high pressure cleaner according to claim 2, wherein the water inlet check valve (8) is installed in a water inlet check valve installation seat (10) of the pump body (2), the high pressure check valve (9) is installed in a high pressure check valve installation seat (11) of the pump body (2), and the water inlet check valve installation seat (10) and the high pressure check valve installation seat (11) are both arranged along the axial direction of the pump body (2).
4. The axial pump of a high-pressure washer according to claim 1, characterized in that the output shaft (12) of the motor (1) is an eccentric shaft, a drive bearing (13) is sleeved on the output shaft (12), and the outer circumferential surface of the drive bearing (13) is in contact connection with the end surface of the plunger (7).
5. The axial pump of a high-pressure cleaning machine as claimed in claim 4, characterized in that an eccentric weight (14) is fixed to the output shaft (12) of the electric motor (1).
6. The axial pump of the high-pressure cleaning machine is characterized in that a plunger mounting seat (15) is arranged on the pump body (2), the plunger unit is arranged in the plunger mounting seat (15), a plunger sleeve (16) is sleeved on the plunger (7), the plunger sleeve (16) is connected with the plunger mounting seat (15) in a sealing mode through a sealing ring, a spring seat (17) is arranged at one end, close to the output shaft (12) of the motor (1), of the plunger (7), and a plunger spring (18) is arranged between the spring seat (17) and the plunger sleeve (16).
7. The axial pump of the high-pressure cleaning machine is characterized in that an oil seal (19) is arranged between the plunger (7) and the plunger sleeve (16), one end, far away from the output shaft (12) of the motor (1), of the plunger (7) is sequentially sleeved with an auxiliary seal (20) and a main water seal (21), the auxiliary seal (20) is respectively in sealing connection with the plunger (7) and the plunger mounting seat (15) through a sealing ring, and the main water seal (21) is a lip-shaped sealing ring.
8. The axial pump of the high-pressure cleaning machine according to claim 1, characterized in that one side of the pump body (2) away from the motor (1) is provided with an axial water inlet pipe (22) and an axial water outlet pipe (23), the water inlet pipe (22) is connected with the water inlet cavity (3), the water outlet pipe (23) is connected with the water outlet cavity (5), and a water outlet one-way valve (24) is arranged between the water outlet cavity (5) and the high-pressure cavity (4).
9. Axial pump for a high-pressure cleaning machine according to claim 8, characterised in that the inlet chamber (3) and the high-pressure chamber (4) are both annular chambers coaxial with the pump body (2), the high-pressure chamber (4) being provided with radial connecting channels (25).
10. The axial pump of the high-pressure cleaning machine is characterized in that an axial pressure regulating valve installation seat (26) is arranged on one side, away from the motor (1), of the pump body (2), a pressure regulating valve (27) is installed in the pressure regulating valve installation seat (26), and a valve core of the pressure regulating valve (27) is located in the high-pressure cavity (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111191847.9A CN113775498A (en) | 2021-10-13 | 2021-10-13 | Axial pump of high-pressure cleaning machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111191847.9A CN113775498A (en) | 2021-10-13 | 2021-10-13 | Axial pump of high-pressure cleaning machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113775498A true CN113775498A (en) | 2021-12-10 |
Family
ID=78871178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111191847.9A Pending CN113775498A (en) | 2021-10-13 | 2021-10-13 | Axial pump of high-pressure cleaning machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113775498A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017084633A1 (en) * | 2015-11-20 | 2017-05-26 | 苏州宝时得电动工具有限公司 | Pump unit and handheld high-pressure cleaning machine |
| CN209012010U (en) * | 2018-09-21 | 2019-06-21 | 苏州宝时得电动工具有限公司 | Plunger pump and hand-hold washer |
| CN210799253U (en) * | 2019-06-12 | 2020-06-19 | 江苏苏美达五金工具有限公司 | Vertical distributed plunger pump assembly and cleaning machine |
| CN111375585A (en) * | 2018-12-29 | 2020-07-07 | 苏州小科清洁科技有限公司 | Cleaning machine with energy storage ware |
| CN111692068A (en) * | 2019-03-13 | 2020-09-22 | 苏州宝时得电动工具有限公司 | Pressure cleaning machine |
-
2021
- 2021-10-13 CN CN202111191847.9A patent/CN113775498A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017084633A1 (en) * | 2015-11-20 | 2017-05-26 | 苏州宝时得电动工具有限公司 | Pump unit and handheld high-pressure cleaning machine |
| CN209012010U (en) * | 2018-09-21 | 2019-06-21 | 苏州宝时得电动工具有限公司 | Plunger pump and hand-hold washer |
| CN111375585A (en) * | 2018-12-29 | 2020-07-07 | 苏州小科清洁科技有限公司 | Cleaning machine with energy storage ware |
| CN111692068A (en) * | 2019-03-13 | 2020-09-22 | 苏州宝时得电动工具有限公司 | Pressure cleaning machine |
| CN210799253U (en) * | 2019-06-12 | 2020-06-19 | 江苏苏美达五金工具有限公司 | Vertical distributed plunger pump assembly and cleaning machine |
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