CN109675856B - Cleaning device for tractor hydraulic system - Google Patents
Cleaning device for tractor hydraulic system Download PDFInfo
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- CN109675856B CN109675856B CN201910085256.XA CN201910085256A CN109675856B CN 109675856 B CN109675856 B CN 109675856B CN 201910085256 A CN201910085256 A CN 201910085256A CN 109675856 B CN109675856 B CN 109675856B
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- cleaning
- cleaning system
- oil
- pressure
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
- B08B9/0325—Control mechanisms therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Fluid-Pressure Circuits (AREA)
- Cleaning In General (AREA)
Abstract
A cleaning device for a tractor hydraulic system belongs to the technical field of agricultural mechanical equipment. The cleaning machine is mainly used for cleaning a hydraulic system and hydraulic elements of a tractor. The device consists of a cleaning system 1, a cleaning system 2 and a control system, wherein the system 1 is a hydraulic element cleaning system and consists of a cleaning oil tank, a heating system, a motor pump set, a proportional overflow valve, a flow control valve, a quick change-over joint set, a pressure gauge, a combined filtering device, a cooler and an online pollution detection device; the cleaning system 2 is a tractor hydraulic system loop cleaning system and consists of a motor pump set, a proportional overflow valve and a flow control valve, wherein the control system consists of a controller, a cleaning state display device, a cooling control device, a heating control device, a pollution degree detection device, a proportional pressure regulating system and temperature, pressure and flow sensors so as to control the cooler, a heater, cleaning time, cleaning pressure, temperature, pressure and flow display by the cleaning system.
Description
Technical Field
The invention provides a cleaning system for a tractor hydraulic system, and belongs to the technical field of agricultural mechanical equipment. The cleaning machine is mainly used for cleaning a hydraulic system and hydraulic elements of a tractor.
Background
After the hydraulic system of the tractor is assembled, impurities can be reserved in the hydraulic pipeline and the hydraulic element; secondly, because the operational environment in field is comparatively abominable, the tractor is in the back of work, and difficult to avoid can have dust and debris to get into the tractor hydraulic system inside to along with hydraulic system operating time's increase, fluid also can receive corresponding pollution. In the actual use process of the tractor, a user only controls the pollution degree of the hydraulic system by the filter element in the system, and the filter element is not cleaned and replaced timely by the user, so that a precise element control valve, a joint and the like of the hydraulic system are blocked, the oil temperature is increased, and the service life of the tractor is seriously influenced. Therefore, the tractor hydraulic system should perform necessary cleaning work, and the reliability and the service life of the tractor are directly affected by the completion quality of the cleaning work.
Aiming at the situation, the invention provides a hydraulic cleaning device for a tractor, which can realize the cleaning of a hydraulic system and a single hydraulic element of the tractor and prolong the service life of the tractor.
Disclosure of Invention
The invention aims to solve the defects in the technical problem and provides a hydraulic cleaning device for a tractor, which can realize pressure change, flow change and circulating filtration during cleaning and can be repeatedly used. The device is divided into a system cleaning part and an element cleaning part which are respectively driven by different motors, and the cleaning elements and the cleaning system are not interfered with each other.
The scheme adopted by the invention is as follows: the hydraulic cleaning device consists of a cleaning system I, a cleaning system II and a control system, wherein the cleaning system I and the cleaning system II share a cleaning oil tank, and the cleaning system I and the cleaning system II respectively have independent power source motor pump sets, a proportional overflow valve and a flow control valve to meet the functions of oil supply, pressure regulation and flow regulation. The cleaning system is a hydraulic element cleaning system, the maximum cleaning pressure of the cleaning system can reach 31.5MPa through the adjustment of a proportional overflow valve of the system, an oil inlet and an oil outlet of a hydraulic element to be cleaned are respectively connected with the oil inlet and the oil outlet of the cleaning system through a quick-change connector, the quick-change connector is formed by connecting three sets in parallel, at most three hydraulic elements can be cleaned simultaneously, and the cleaning system is composed of a cleaning oil tank, a heater, a motor pump set, a proportional overflow valve, a flow control valve, a quick-change connector set, a pressure gauge, a combined filter, a cooler and an online pollution detector; the second cleaning system is a tractor hydraulic system loop cleaning system, the cleaning system cleans the tractor hydraulic system loop under the condition that the tractor is not started, the highest cleaning pressure is 2MPa, the second cleaning system is a low-pressure large-flow cleaning system and comprises a motor pump set, a proportional overflow valve and a flow control valve, when the second cleaning system works, an oil outlet pipeline of the second cleaning system is connected to a tractor hydraulic system oil tank, the tractor hydraulic system loop is connected to a quick-change connector of an oil return pipeline of the cleaning system through an auxiliary oil pipe after circulation of the tractor hydraulic system loop, and finally the tractor hydraulic system loop flows back to the cleaning oil tank through a combined filter, a cooler and an online pollution detector of the cleaning system. The control system consists of a controller, a cleaning state display device, a cooling control device, a heating control device, a pollution degree detection control device, a proportional overflow valve pressure regulating device, a flow regulating device and temperature, pressure and flow sensors, wherein the cooling control device and the heating control device of the control system can determine the opening of a cooler and a heater through the detection of the temperature sensors; the proportional overflow valve pressure regulating device can manually adjust the proportional overflow valves of the first and second cleaning systems by a knob to complete pressure regulation; the flow regulating device can manually adjust the flow control valves of the first and second cleaning systems to complete the regulation of the flow; when the cleaning effect detected by the online pollution detector of the cleaning system meets the cleanliness requirement preset by the controller, the pollution degree detection control device controls the motor-pump set of the cleaning system to stop working; the cleaning state display device can realize the display function of the cleaning system on the working state of the cooler and the heater, the cleaning time, the cleaning pressure, the cleaning temperature, the cleaning pressure and the cleaning flow.
Drawings
Fig. 1 is a schematic diagram of a cleaning device of a tractor hydraulic system.
In the figure 1, a heating system, 2, a cleaning oil tank, 3, an oil absorption filter, 4, a motor pump group, 5, a proportional overflow valve, 6, a one-way valve, 7, a one-way throttle valve, 8, an oil drain valve, 9, a quick-change connector group, 10, a pressure gauge, 11, a circulating coarse oil filter, 12, a circulating essential oil filter, 13, a flow meter, 14, a cooler, 15, an online pollution detector, 16, an oil outlet pipeline, 17, a pollution detection pipeline, 18, an oil return pipeline, 19 and an overflow pipeline.
Fig. 2 is a control system diagram of a cleaning device of a tractor hydraulic system.
Detailed Description
The following will further describe a specific embodiment of the hydraulic system cleaning device of the tractor with reference to fig. 1 and 2. Referring to fig. 1, when a cleaning system is used to clean a pair of hydraulic components, firstly, the oil inlet and outlet ports of the hydraulic components are respectively connected between the oil inlet and the oil return path of the quick change joint group 9 through the auxiliary oil pipe, the motor switch of the motor pump group 4 is opened, the cleaning system is started, then the hydraulic pump of the motor pump group 4 pumps the hydraulic oil in the cleaning oil tank 2 into the system through the oil absorption filter 3, the hydraulic oil flows back into the cleaning oil tank 2 through the overflow pipeline 19, the check valve 6, the check throttle valve 7, the quick change joint group 9, the circulating coarse oil filter 11, the circulating essential oil device 12, the flowmeter 13, the cooler 14 and the oil return pipeline 18 to form a circulating cleaning oil path, when the cleaning pressure of the cleaning oil path needs to be changed, the proportional overflow valve (as shown in fig. 2) can be controlled through the controller through the pressure adjusting device to adjust the cleaning pressure of the system, the flow rate of the cleaning oil path can be changed through manually adjusting the check throttle valve 7, when the online pollution detector 15 connected to the pollution detection pipeline 17 detects that the hydraulic oil meets the cleaning requirement, the controller controls the motor of the motor-pump set 4 to be turned off, so that the cleaning of the element is completed. When the cleaning system is adopted to clean the two pairs of tractor hydraulic systems, the oil return pipeline of the tractor hydraulic system needs to be disconnected firstly, the oil return pipeline is connected to the oil return pipeline of the quick change joint group 9 through the auxiliary oil pipe, the oil inlet pipeline of the cleaning system II is directly connected to the oil tank of the tractor hydraulic system through the auxiliary oil pipe, and the vent hole of the oil tank in the tractor hydraulic system is closed, so that a system cleaning loop is formed, then the motor pump set motor switch on the tractor hydraulic system oil pump and the hydraulic cleaning system II is opened, cleaning is started, and other pressure, flow and cleaning completion control is the same as that of the cleaning system I.
As shown in fig. 2, when the cleaning system is used for cleaning or the cleaning system is used for cleaning, the hydraulic cleaning device can display the oil temperature, the pressure, the flow and the cleaning time of the cleaning system in real time through the data acquired by the temperature sensor, the pressure sensor and the flow sensor in real time through the controller and the cleaning state display device; in addition, the start and stop of the cooler and the heating device can be controlled by the temperature sensor and the controller.
The cleaning system is a high-pressure small-flow system, and the cleaning system is a low-pressure large-flow system, so that the cleaning system is provided with a high-pressure pump, and the cleaning system is provided with a low-pressure pump. The device adopts the quick-change connector group and is provided with the quick-change connectors with different specifications, so that hydraulic elements and systems with different specifications can be quickly connected, and the cleaning efficiency is improved.
Claims (2)
1. A cleaning device for a tractor hydraulic system is characterized by comprising a cleaning system I, a cleaning system II and a control system, wherein the cleaning system I and the cleaning system II share a cleaning oil tank, and the cleaning system I and the cleaning system II respectively have independent power source motor pump sets, proportional overflow valves and flow control valves to meet the functions of oil supply, pressure regulation and flow regulation; the cleaning system is a hydraulic element cleaning system, an oil inlet and an oil outlet of a hydraulic element to be cleaned are respectively connected with the oil inlet and the oil outlet of the cleaning system through a quick-change connector, the cleaning system is composed of a cleaning oil tank, a heater, a power source motor pump set, a proportional overflow valve, a flow control valve, a quick-change connector set, a pressure gauge, a combined filter, a cooler and an online pollution detector, wherein the pressure gauge is connected to an oil outlet path of the cleaning system to display cleaning pressure, the heater is arranged in the cleaning oil tank and can heat the cleaning system at low temperature, the power source motor pump set mainly provides high-pressure oil for the cleaning system, an oil outlet of the cleaning system is connected with the proportional overflow valve in parallel to adjust the pressure of the cleaning system, the flow control valve in series connection with the oil outlet can adjust the flow of the cleaning system, the combined filter, the cooler and the online pollution detector are sequentially connected to an oil return path, The cooler and the online pollution detector complete the filtration, cooling and detection of the cleanliness of oil liquid of the system; the second cleaning system is a tractor hydraulic system loop cleaning system, the second cleaning system is composed of a power source motor pump set, a proportional overflow valve and a flow control valve, when the second cleaning system works, the proportional overflow valve is connected to an oil outlet path of the power source motor pump set to adjust cleaning pressure, the flow control valve is used for adjusting cleaning flow, an oil outlet line of the second cleaning system is connected to a tractor hydraulic system oil tank, after circulation of the tractor hydraulic system loop, the tractor hydraulic system loop is connected to a quick-change connector of an oil return path of the cleaning system through an auxiliary oil pipe, and finally the tractor hydraulic system loop flows back to the cleaning oil tank through a combined filter, a cooler and an online pollution detector of the cleaning system.
2. The cleaning device for the hydraulic system of the tractor as claimed in claim 1, further comprising a control system, wherein the control system is composed of a controller, a cleaning state display device, a cooling control device, a heating control device, a pollution degree detection control device, a proportional overflow valve pressure regulating device, a flow regulating device and temperature, pressure and flow sensors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910085256.XA CN109675856B (en) | 2019-01-29 | 2019-01-29 | Cleaning device for tractor hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910085256.XA CN109675856B (en) | 2019-01-29 | 2019-01-29 | Cleaning device for tractor hydraulic system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109675856A CN109675856A (en) | 2019-04-26 |
| CN109675856B true CN109675856B (en) | 2022-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910085256.XA Active CN109675856B (en) | 2019-01-29 | 2019-01-29 | Cleaning device for tractor hydraulic system |
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| CN (1) | CN109675856B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112024535B (en) * | 2020-07-08 | 2022-10-11 | 西安航空制动科技有限公司 | Cylinder seat cleaning system of aircraft brake device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1987000455A1 (en) * | 1985-07-22 | 1987-01-29 | Sundholm Goeran | Apparatus for flushing a piping system |
| CN101940106A (en) * | 2010-07-17 | 2011-01-12 | 石河子大学 | Hydraulic system for self-propelled tomato harvester |
| CN103454094A (en) * | 2013-09-18 | 2013-12-18 | 湘潭科达电工专用成套设备有限责任公司 | Tractor chassis self-weight load type running-in purification test stand and running-in purification process thereof |
| CN104196778A (en) * | 2014-09-22 | 2014-12-10 | 北京布鲁斯格环保科技有限公司 | Hydraulic servo device |
| CN105857259A (en) * | 2016-05-05 | 2016-08-17 | 北汽福田汽车股份有限公司 | Pump truck and double-flow cleaning system thereof |
| CN106640854A (en) * | 2015-10-28 | 2017-05-10 | 中国国际海运集装箱(集团)股份有限公司 | Two-way driving ferry bus hydraulic system |
-
2019
- 2019-01-29 CN CN201910085256.XA patent/CN109675856B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1987000455A1 (en) * | 1985-07-22 | 1987-01-29 | Sundholm Goeran | Apparatus for flushing a piping system |
| CN101940106A (en) * | 2010-07-17 | 2011-01-12 | 石河子大学 | Hydraulic system for self-propelled tomato harvester |
| CN103454094A (en) * | 2013-09-18 | 2013-12-18 | 湘潭科达电工专用成套设备有限责任公司 | Tractor chassis self-weight load type running-in purification test stand and running-in purification process thereof |
| CN104196778A (en) * | 2014-09-22 | 2014-12-10 | 北京布鲁斯格环保科技有限公司 | Hydraulic servo device |
| CN106640854A (en) * | 2015-10-28 | 2017-05-10 | 中国国际海运集装箱(集团)股份有限公司 | Two-way driving ferry bus hydraulic system |
| CN105857259A (en) * | 2016-05-05 | 2016-08-17 | 北汽福田汽车股份有限公司 | Pump truck and double-flow cleaning system thereof |
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| CN109675856A (en) | 2019-04-26 |
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