CN113062900B - Portable auxiliary maintenance equipment for hydraulic system - Google Patents
Portable auxiliary maintenance equipment for hydraulic system Download PDFInfo
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- CN113062900B CN113062900B CN202110315839.4A CN202110315839A CN113062900B CN 113062900 B CN113062900 B CN 113062900B CN 202110315839 A CN202110315839 A CN 202110315839A CN 113062900 B CN113062900 B CN 113062900B
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- oil
- hydraulic system
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- joint
- unit
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- 238000012423 maintenance Methods 0.000 title abstract description 8
- 239000003921 oil Substances 0.000 claims abstract description 109
- 238000005086 pumping Methods 0.000 claims abstract description 50
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 47
- 238000004140 cleaning Methods 0.000 claims abstract description 39
- 238000003825 pressing Methods 0.000 claims abstract description 31
- 230000001502 supplementing effect Effects 0.000 claims abstract description 7
- 238000001914 filtration Methods 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 9
- 239000013589 supplement Substances 0.000 abstract description 5
- 238000011403 purification operation Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 5
- 239000012535 impurity Substances 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/005—Filling or draining of fluid systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a portable auxiliary maintenance device for a hydraulic system, comprising: the pressing unit is used for supplementing oil for the hydraulic system, and the inlet end and the outlet end of the pressing unit are respectively connected with the oil storage tank and the hydraulic system; the oil pumping unit is used for pumping out, filtering and conveying the hydraulic oil in the hydraulic system to the cleaning unit; the cleaning unit is used for feeding the hydraulic oil from the oil pumping unit into the hydraulic system; the inlet end and the outlet end of the oil pumping unit are respectively connected with an oil return pipe of the hydraulic system and the inlet end of the cleaning unit, and the outlet end of the cleaning unit is connected with an oil inlet pipe of the hydraulic system. The invention can timely and conveniently supplement the hydraulic oil to the hydraulic system, and can reasonably and effectively perform the purification operation of the hydraulic oil on the premise of not replacing the hydraulic oil according to the pollution degree of the hydraulic oil in the hydraulic system. The invention is suitable for the technical field of hydraulic system maintenance.
Description
Technical Field
The invention belongs to the technical field of hydraulic system maintenance, and particularly relates to portable auxiliary maintenance equipment for a hydraulic system.
Background
After the hydraulic system is used for a long time, the phenomenon of oil shortage of the hydraulic system is often caused by the conditions of oil leakage, oil bleeding, oil dripping or oil leakage of an oil pipe, and then the oil supplementing operation is needed, however, the current oil supplementing operation is troublesome, the hydraulic system is needed to be stopped, and hydraulic oil in a hydraulic oil tank is injected into oil storage equipment of a pump station through an electric or manual pump. Meanwhile, in the long-term use process, some impurities can be accumulated in the hydraulic system, and at present, no effective method is available for removing the impurities on the premise of not replacing hydraulic oil.
Disclosure of Invention
The invention provides portable auxiliary maintenance equipment for a hydraulic system, which is used for timely and conveniently supplementing hydraulic oil to the hydraulic system, and can reasonably and effectively perform the purification operation of the hydraulic oil on the premise of not replacing the hydraulic oil according to the pollution degree of the hydraulic oil in the hydraulic system.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
a portable auxiliary service device for a hydraulic system, comprising:
the pressing unit is used for supplementing oil for the hydraulic system, and the inlet end and the outlet end of the pressing unit are respectively connected with the oil storage tank and the hydraulic system;
the oil pumping unit is used for pumping out, filtering and conveying the hydraulic oil in the hydraulic system to the cleaning unit;
the cleaning unit is used for feeding the hydraulic oil from the oil pumping unit into the hydraulic system and comprises a servo motor controlled by a servo driver, the servo motor is connected with a gear pump, the inlet end of the gear pump is connected with the outlet end of the oil pumping unit, and the outlet end of the gear pump is connected with the hydraulic system;
the inlet end and the outlet end of the oil pumping unit are respectively connected with an oil return pipe of the hydraulic system and an inlet end of the cleaning unit, the outlet end of the cleaning unit is connected with an oil inlet pipe of the hydraulic system, and a secondary filter is arranged on a pipeline connected with the hydraulic system.
Further, the pressing unit comprises a motor pump arranged in the oil tank, an outlet of the motor pump is connected with a first valve seat through a first pipeline, a pressing joint A, a pressing joint B and an oil return joint are constructed on the first valve seat, and the pressing joint A or the pressing joint B is connected with a hydraulic system.
Further, a manual reversing valve, a first overflow valve and a first pressure gauge are arranged on the first valve seat.
Further, an air filter is arranged in the oil tank and above the highest liquid level, and a liquid level meter extending into the hydraulic oil is arranged in the oil tank.
Further, the oil pumping unit comprises an oil inlet joint which is arranged on the box body and is communicated with the inside of the box body, the oil inlet joint is connected with the hydraulic system and is pumped by the oil pump to be supplied with an adapter connected with an outlet of the oil pump, the adapter is connected with an oil return filter, hydraulic oil is filtered by the oil return filter and enters the box body, an oil pumping pipeline which extends to the bottom of the box body is arranged in the box body, and the oil pumping pipeline is connected with an inlet end of the cleaning unit through a base connecting seat.
Further, a float type liquid level switch is arranged in the box body.
Further, the cleaning unit further comprises a second valve seat, the second valve seat is connected with an outlet of the gear pump through a second pipeline, a first connecting joint connected with the hydraulic system is constructed on the second valve seat, the second valve seat is connected with a joint connecting seat through a third pipeline, the joint connecting seat is connected with an inlet of the gear pump, and a second connecting joint connected with an outlet end of the oil pumping unit is constructed on the joint connecting seat.
Compared with the prior art, the invention adopts the structure, and the technical progress is that: when the hydraulic oil in the hydraulic system is lost and needs to be replenished, an operator respectively connects the inlet end and the outlet end of the pressing unit with the oil storage tank and the hydraulic system, so that the pressing unit supplements the hydraulic oil in the oil storage tank into the hydraulic system; when the hydraulic oil in the hydraulic system contains impurities and needs to be cleaned, an outlet of the oil pumping unit is connected with an inlet of the cleaning unit, the inlet of the oil pumping unit is connected with the hydraulic system and is used for pumping the hydraulic oil of the hydraulic system and supplying the hydraulic oil to the cleaning unit, and the cleaning unit supplies the cleaned hydraulic oil to the hydraulic system; in summary, the invention can timely and conveniently supplement the hydraulic oil to the hydraulic system, and can reasonably and effectively perform the purification operation of the hydraulic oil on the premise of not replacing the hydraulic oil according to the pollution degree of the hydraulic oil in the hydraulic system.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.
In the drawings:
FIG. 1 is a schematic diagram of a pressing unit according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a partial structure of a pressing unit according to an embodiment of the present invention;
FIG. 3 is a schematic view of the structure of FIG. 2 at another angle;
FIG. 4 is a schematic diagram of the connection of the pumping unit and the cleaning unit according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of the structure of a pumping unit according to an embodiment of the present invention;
FIG. 6 is a schematic view of a partial structure of a pumping unit according to an embodiment of the present invention;
FIG. 7 is a schematic view of the structure of FIG. 6 at another angle;
FIG. 8 is a schematic diagram of a cleaning unit according to an embodiment of the present invention;
fig. 9 is a schematic partial structure of a cleaning unit according to an embodiment of the invention.
Marking parts: 100-pressing unit, 101-first valve seat, 102-manual reversing valve, 103-first overflow valve, 104-first pressure gauge, 105-motor pump, 106-first pipeline, 107-air filter, 110-pressing joint A, 111-pressing joint B, 112-oil return joint, 200-pumping unit, 201-oil pump, 202-oil return filter, 203-pumping pipeline, 204-base connecting seat, 205-oil outlet joint, 206-adapter, 207-float level switch, 208-oil inlet joint, 300-cleaning unit, 301-second pressure gauge, 302-second overflow valve, 303-first connecting joint, 304-second valve seat, 305-third pipeline, 306-connector connecting seat, 307-second connecting joint, 308-second pipeline, 309-gear pump, 310-servo motor, 311-servo driver, 400-secondary filter, 500-first connecting pipe, 600-third connecting pipe, 700-second connecting pipe.
Detailed Description
Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are presented for purposes of illustration and explanation only and are not intended to limit the present invention.
The invention discloses portable auxiliary maintenance equipment for a hydraulic system, which comprises a pressurizing unit 100, an oil pumping unit 200 and a cleaning unit 300 as shown in figures 1-9. The pressurizing unit 100 is used for supplementing oil to the hydraulic system, and an inlet end and an outlet end of the pressurizing unit 100 are respectively connected with the oil storage tank and the hydraulic system; the oil pumping unit 200 is used for pumping out, filtering and conveying the hydraulic oil in the hydraulic system to the cleaning unit 300; a washing unit 300 for feeding the hydraulic oil from the pumping unit 200 into the hydraulic system; the inlet end and the outlet end of the oil pumping unit 200 are respectively connected with an oil return pipe of the hydraulic system and the inlet end of the cleaning unit 300, and the outlet end of the cleaning unit 300 is connected with an oil inlet pipe of the hydraulic system. The working principle and the advantages of the invention are as follows: when the hydraulic oil in the hydraulic system is lost and needs to be replenished, an operator connects the inlet end and the outlet end of the pressurizing unit 100 with the oil storage tank and the hydraulic system respectively, so that the pressurizing unit 100 supplements the hydraulic oil in the oil storage tank into the hydraulic system; when the hydraulic oil in the hydraulic system contains impurities and needs to be cleaned, the outlet of the oil pumping unit 200 is connected with the inlet of the cleaning unit 300, the inlet of the oil pumping unit 200 is connected with the hydraulic system and is used for pumping the hydraulic oil of the hydraulic system and supplying the hydraulic oil to the cleaning unit 300, and the cleaning unit 300 supplies the cleaned hydraulic oil to the hydraulic system; in summary, the invention can timely and conveniently supplement the hydraulic oil to the hydraulic system, and can reasonably and effectively perform the purification operation of the hydraulic oil on the premise of not replacing the hydraulic oil according to the pollution degree of the hydraulic oil in the hydraulic system.
As a preferred embodiment of the present invention, as shown in fig. 1 to 3, the pressurizing unit 100 includes a motor pump 105 installed in an oil tank, the motor pump 105 is a plunger type high pressure motor pump, an outlet of the motor pump 105 is connected to the first valve seat 101 through a first pipe 106, a pressurizing connector a110, a pressurizing connector B111 and an oil return connector 112 are configured on the first valve seat 101, and the pressurizing connector a110 or the pressurizing connector B111 is connected to a hydraulic system. In this embodiment, a manual directional valve 102, a first relief valve 103, and a first pressure gauge 104 are attached to a first valve seat 101. An air filter 107 is installed in the tank above the highest level, and a level gauge extending into the hydraulic oil is provided in the tank. Under normal operation, the desired first pressure gauge 104 is selected with a boundary of 62MPa after the desired output pressure is determined. After the pressure is determined, the tubing is connected using a pressure measuring hose. The power switch is turned on to drive the motor pump 105 to work, oil passes through the first overflow valve 103, and under the normal working condition, the first overflow valve 103 is closed to act as a safety valve, and the pipeline pressure is gradually increased. At this time, at the position of the manual reversing valve 102, the manual reversing valve 102 has three working positions, the flow direction of oil is changed through the manual reversing valve 102, when the reversing valve is at the M position, the system is in a pressure relief state, oil flows into the oil tank through the oil return hole, when the reversing valve is at the A position, the pressing joint A110 is used for discharging oil, the pressing work is realized by adjusting the first overflow valve 103 and determining the pressure value in the first pressure gauge 104, and when the reversing valve is at the B position, the pressing joint B111 is used for discharging oil, and the pressing work is realized by adjusting the first overflow valve 103 and determining the pressure value in the first pressure gauge 104. The whole hydraulic system is simple in structure, reliability, maintainability, guaranteeing performance, safety and the like can be effectively guaranteed by applying typical hydraulic elements, effective integration can be achieved, low-weight elements are considered as much as possible during design, and influences of weight on the whole system are reduced. The adopted double-gear scheme further improves the reliability and safety of the product. In the use process of the pressing unit 100, the pressing joint a110 or the pressing joint B111 of the pressing unit 100 needs to be connected with equipment according to service requirements, and the rotation working mode of the manual reversing valve 102 is switched.
As a preferred embodiment of the present invention, as shown in fig. 4 to 7, the pumping unit 200 includes an oil inlet joint 208 installed on the tank and communicating with the inside of the tank, an oil outlet joint 205 connected to a base connection seat 204, the oil inlet joint 208 connected to a hydraulic system and pumped through a pump 201 to be supplied to an adapter 206 connected to an outlet of the pump 201, the adapter 206 connected to an oil return filter 202, hydraulic oil filtered through the oil return filter 202 and introduced into the tank, and a pumping pipe 203 extending to the bottom of the tank, the pumping pipe 203 connected to an inlet end of the cleaning unit 300 through the base connection seat 204. In this embodiment, a float type liquid level switch 207 is installed in the tank. The working principle of the oil pump 201 of the oil pumping unit 200 is that a pump shaft and a gear rotate under the drive of a motor, vacuum oil suction is formed at the disengaging position of the gear, high-pressure oil is formed at the engaging position of the gear, and the high-pressure oil is input into a hydraulic pipeline. Under normal operation, the switch is started, the oil pump 201 rotates, and oil enters the tank body through the oil return filter 202. The hydraulic system of the oil pumping unit 200 has simple structure, low complexity of the system, and strong reliability, maintainability, assurance, test performance and the like. In order to simplify the operation flow and reduce the waste of oil, the safety and the guarantee are further improved by utilizing the characteristics of the one-way valve. The pumping unit 200 must be used in combination with the cleaning unit 300 to perform the corresponding function.
As a preferred embodiment of the present invention, as shown in fig. 4 and 8 to 9, the cleaning unit 300 includes a servo motor 310 controlled by a servo driver 311, and a gear pump 309 is connected to the servo motor 310, an inlet end of the gear pump 309 is connected to an outlet end of the pumping unit 200, and an outlet end of the gear pump 309 is connected to a hydraulic system. The cleaning unit 300 of the present embodiment further includes a second valve seat 304, the second valve seat 304 is connected to an outlet of the gear pump 309 through a second pipe 308, a first connection joint 303 connected to the hydraulic system is configured on the second valve seat 304, the second valve seat 304 is connected to a joint connection seat 306 through a third pipe 305, the joint connection seat 306 is connected to an inlet of the gear pump 309, and a second connection joint 307 connected to an outlet end of the oil pumping unit 200 is configured on the joint connection seat 306. In this embodiment, a second pressure gauge 301 and a second relief valve 302 are mounted on a second valve seat 304. Cleaning unit 300 hydraulic principle: because of the difference in the demands of the working conditions, the pump station of the cleaning unit 300 adopts a cleaning pump with smaller pressure as a substitute, and the power of the driving motor is correspondingly reduced. The cleaning pump mainly comprises a pump body, gears, front and rear covers and the like. The pump shaft is driven to rotate by the motor through key connection, so that the gear is driven to rotate. Vacuum is formed at the disengaging position of the gears, liquid is sucked in, oil is extruded at the engaging position of the gears, and high-pressure liquid is formed to enter the pipeline. The wash unit 300 provides a stable input to the wash as a tank for the pumping unit 200 during use. In order to realize stable control of the oil path flow, a control mode of a servo driver 311 and a servo motor 310 is adopted, and the motor rotation speed is adjusted through an interactive control unit, so that flow adjustment is realized.
As a preferred embodiment of the present invention, as shown in fig. 4, an inlet of the pumping unit 200 is connected to an oil drum or a hydraulic system through a first connection pipe 500 for pumping hydraulic oil in the oil drum or the hydraulic system, an outlet of the pumping unit 200 is connected to an inlet of the washing unit 300 through a second connection pipe 700, an outlet of the washing unit 300 is connected to the hydraulic system through a third connection pipe 600 for injecting purified hydraulic oil into the hydraulic system, and a secondary filter 400 is installed on a pipe connecting the washing unit 300 to the hydraulic system, thereby improving a filtering effect.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (4)
1. A portable auxiliary service device for a hydraulic system, comprising:
the pressing unit is used for supplementing oil for the hydraulic system, and the inlet end and the outlet end of the pressing unit are respectively connected with the oil storage tank and the hydraulic system;
the oil pumping unit is used for pumping out, filtering and conveying the hydraulic oil in the hydraulic system to the cleaning unit;
the cleaning unit is used for feeding the hydraulic oil from the oil pumping unit into the hydraulic system and comprises a servo motor controlled by a servo driver, the servo motor is connected with a gear pump, the inlet end of the gear pump is connected with the outlet end of the oil pumping unit, and the outlet end of the gear pump is connected with the hydraulic system;
the inlet end and the outlet end of the oil pumping unit are respectively connected with an oil return pipe of the hydraulic system and an inlet end of the cleaning unit, the outlet end of the cleaning unit is connected with an oil inlet pipe of the hydraulic system, and a secondary filter is arranged on a pipeline connected with the hydraulic system by the cleaning unit;
the pressing unit comprises a motor pump arranged in the oil tank, an outlet of the motor pump is connected with a first valve seat through a first pipeline, a pressing joint A, a pressing joint B and an oil return joint are constructed on the first valve seat, and the pressing joint A or the pressing joint B is connected with a hydraulic system;
the oil pumping unit comprises an oil inlet joint which is arranged on the box body and is communicated with the inside of the box body, the oil inlet joint is connected with the hydraulic system and is pumped by the oil pump to be supplied to an adapter connected with an outlet of the oil pump, the adapter is connected with an oil return filter, hydraulic oil is filtered by the oil return filter and enters the box body, an oil pumping pipeline which extends to the bottom of the box body is arranged in the box body, and the oil pumping pipeline is connected with an inlet end of the cleaning unit through a base connecting seat;
the cleaning unit further comprises a second valve seat, the second valve seat is connected with an outlet of the gear pump through a second pipeline, a first connecting joint connected with the hydraulic system is constructed on the second valve seat, the second valve seat is connected with a joint connecting seat through a third pipeline, the joint connecting seat is connected with an inlet of the gear pump, and a second connecting joint connected with an outlet end of the oil pumping unit is constructed on the joint connecting seat.
2. A portable auxiliary service device for a hydraulic system according to claim 1, wherein: and a manual reversing valve, a first overflow valve and a first pressure gauge are arranged on the first valve seat.
3. A portable auxiliary service device for a hydraulic system according to claim 1, wherein: an air filter is arranged in the oil tank and above the highest liquid level, and a liquid level meter extending into the hydraulic oil is arranged in the oil tank.
4. A portable auxiliary service device for a hydraulic system according to claim 1, wherein: and a float type liquid level switch is arranged in the box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110315839.4A CN113062900B (en) | 2021-03-24 | 2021-03-24 | Portable auxiliary maintenance equipment for hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110315839.4A CN113062900B (en) | 2021-03-24 | 2021-03-24 | Portable auxiliary maintenance equipment for hydraulic system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113062900A CN113062900A (en) | 2021-07-02 |
| CN113062900B true CN113062900B (en) | 2023-06-06 |
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ID=76561988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110315839.4A Active CN113062900B (en) | 2021-03-24 | 2021-03-24 | Portable auxiliary maintenance equipment for hydraulic system |
Country Status (1)
| Country | Link |
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| CN (1) | CN113062900B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5283978B2 (en) * | 2008-06-11 | 2013-09-04 | 株式会社東芝 | Hydraulic generator |
| CN102400981A (en) * | 2011-11-30 | 2012-04-04 | 北京二七轨道交通装备有限责任公司 | Equipment for cleaning hydraulic system |
| CN202370948U (en) * | 2011-12-22 | 2012-08-08 | 中国人民解放军63908部队 | Movable type hydraulic system pipeline cleaning device |
| CN207229515U (en) * | 2017-08-17 | 2018-04-13 | 武汉中维德远液压机械有限公司 | Construction machinery hydraulic system Portable type pipeline rinses and filtration apparatus |
| CN109973467A (en) * | 2018-11-16 | 2019-07-05 | 湖北江山重工有限责任公司 | Mobile hydraulic cleaning systems and pressure experimental device |
| CN209550148U (en) * | 2019-01-10 | 2019-10-29 | 招商局重工(深圳)有限公司 | A kind of hydraulic pipeline cleaning apparatus |
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2021
- 2021-03-24 CN CN202110315839.4A patent/CN113062900B/en active Active
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| CN113062900A (en) | 2021-07-02 |
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