CN114295391A - Tractor performance test hydraulic system - Google Patents
Tractor performance test hydraulic system Download PDFInfo
- Publication number
- CN114295391A CN114295391A CN202111513241.2A CN202111513241A CN114295391A CN 114295391 A CN114295391 A CN 114295391A CN 202111513241 A CN202111513241 A CN 202111513241A CN 114295391 A CN114295391 A CN 114295391A
- Authority
- CN
- China
- Prior art keywords
- pipe
- lubricating oil
- valve
- oil
- outer side
- 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
Links
- 238000011056 performance test Methods 0.000 title claims abstract description 16
- 239000010687 lubricating oil Substances 0.000 claims abstract description 73
- 239000003921 oil Substances 0.000 claims abstract description 62
- 238000012360 testing method Methods 0.000 claims abstract description 30
- 230000005540 biological transmission Effects 0.000 claims abstract description 22
- 210000001503 joint Anatomy 0.000 claims description 7
- 238000009826 distribution Methods 0.000 abstract description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a hydraulic system for a tractor performance test, which comprises a connecting pipe, a first electromagnetic reversing valve, a discharge pipe, a throttle valve and a first stop valve, wherein a transmission system lubricating oil distribution pipe, an oil pump assembly lubricating oil pipe and a PTO clutch lubricating oil pipe are arranged on the outer side of a tractor gearbox chassis, lubricating oil is introduced into the tractor gearbox chassis for testing through the transmission system lubricating oil distribution pipe, the oil pump assembly lubricating oil pipe and the PTO clutch lubricating oil pipe, and tested lubricating oil is discharged and collected through an oil return pipe, so that a test platform is conveniently provided for the tractor chassis, and the beneficial effect of convenience is brought to the test production of the tractor gearbox chassis with a new model.
Description
Technical Field
The invention relates to the field related to hydraulic stations, in particular to a hydraulic system for a tractor performance test.
Background
The tractor is used for drawing and driving the working machine to complete various mobile operations, and can also be used as fixed operation power, and is composed of engine, transmission system, walking system, steering system, hydraulic suspension system, power output system, electric instrument system, driving control system and drawing system or device.
When the tractor chassis engine is produced, because the tractor chassis can not be connected after being assembled, the various oil pipes above can be connected only when the whole tractor is assembled, and meanwhile, only when the whole tractor is assembled, the diesel engine provides power for the pump, and the chassis does not exist, so that the tractor chassis is inconvenient to test, and inconvenience is brought to the production of the tractor chassis.
Disclosure of Invention
Therefore, in order to solve the above-mentioned shortcomings, the invention provides a hydraulic system for a tractor performance test.
The invention is realized in this way, a tractor performance test hydraulic system is constructed, the device comprises a connecting pipe and a linking pipe, two ends of the connecting pipe are respectively connected with the top output end of a first electromagnetic directional valve and the inner side of a clutch, the first electromagnetic directional valve is arranged on the output end of a second oil tank, the outer output end of the first electromagnetic directional valve is connected with a discharge pipe, the discharge pipe is linked in the middle of the outer side of a main pipe, a throttle valve and a first stop valve are arranged on the discharge pipe, two ends of the main pipe are respectively connected with the bottom input end of a flow divider valve and the top output end of a first duplex hydraulic pump, a first filter, an overflow valve and a plate type pressure reducing valve are sequentially arranged on the main pipe from bottom to top, two ends of the linking pipe are respectively linked in the outer side of the main pipe and the bottom input end of the second electromagnetic directional valve, and the left end of the outer side of the linking pipe is positioned between the overflow valve and the plate type pressure reducing valve, the top output end of the second electromagnetic directional valve is inserted with a test tube, the test tube is connected to the inner side of a PTO test oil port, the PTO test oil port is arranged on the outer side of an engine, the bottom input end of the first duplex hydraulic pump is connected to a first oil tank, the top output end of the flow divider is provided with a transmission system lubricating oil distribution tube, an oil pump assembly lubricating oil tube and a PTO clutch lubricating oil tube, the transmission system lubricating oil distribution tube, the oil pump assembly lubricating oil tube and the PTO clutch lubricating oil tube are connected to the top of the outer side of a tractor gearbox chassis, the middle lower part of the inner side of the transmission system lubricating oil distribution tube is connected with a butt joint tube, and a second stop valve is arranged on the oil pump assembly lubricating oil tube and the transmission system lubricating oil distribution tube PTO clutch lubricating oil tube;
the top of the inner side of the clutch is inserted into the bottom of the outer side of the butt joint pipe, the right end of the inner side of the clutch is connected with the left end of the outer side of the oil return pipe, two ends of the oil return pipe are respectively connected with the output end of the bottom of the tractor gearbox chassis and the input end of the second duplex hydraulic pump, and the oil return pipe is provided with a second filter, the outer side of the second filter is provided with an air cooler, and the second filter and the first filter are provided with filter alarms, the output end of the second duplex hydraulic pump is connected with a lead-in pipe, the lead-in pipe is inserted at the bottom end of the third electromagnetic directional valve, the output end of the top of the third electromagnetic directional valve is provided with a first branch pipe and a second branch pipe, the first branch pipe penetrates through the outer side of the first oil tank, the second branch pipe is connected to the middle lower part of the outer side of the main pipe, and the left end of the outer side of the second branch pipe is positioned between the first duplex hydraulic pump and the first filter;
the second filter is provided with three oil return pipes, and the second filter is provided with a filter alarm.
Preferably, the first electromagnetic directional valve and the second electromagnetic directional valve are the same in size and model.
Preferably, a throttle valve and a first stop valve are arranged on the discharge pipe and the connecting pipe.
Preferably, the outer side of the main pipe is provided with more than two connectors, and the positions of the connectors correspond to the discharge pipe, the connecting pipe and the first branch pipe.
Preferably, a throttle valve is arranged on the main pipe, and the throttle valve on the main pipe is positioned at the rear end of the flow divider.
The invention has the following advantages: the invention provides a tractor performance test hydraulic system through improvement, compared with the same type of equipment, the invention has the following improvements:
according to the hydraulic system for the tractor performance test, the transmission system lubricating oil distributing pipe, the oil pump assembly lubricating oil pipe and the PTO clutch lubricating oil pipe are arranged on the outer side of the tractor gearbox chassis, the lubricating oil is guided into the tractor gearbox chassis for testing through the transmission system lubricating oil distributing pipe, the oil pump assembly lubricating oil pipe and the PTO clutch lubricating oil pipe, and the tested lubricating oil is discharged and collected through the oil return pipe, so that a test platform is conveniently provided for a tractor chassis engine, and the beneficial effect of convenience in production of a new tractor gearbox chassis is achieved.
Drawings
FIG. 1 is a schematic diagram of the present invention.
Wherein: a connecting pipe-1, a first electromagnetic directional valve-2, a discharge pipe-3, a throttle valve-4, a first stop valve-5, a main pipe-6, an adapter pipe-7, a second electromagnetic directional valve-8, a test pipe-9, a PTO test oil port-10, a first duplex hydraulic pump-11, a first filter-12, an overflow valve-13, a plate type pressure reducing valve-14, a flow dividing valve-15, a transmission system lubricating oil distributing pipe-16, an oil pump assembly lubricating oil pipe-17, a PTO clutch lubricating oil pipe-18, a second stop valve-19, a clutch-20, an oil return pipe-21, a second filter-22, a filter alarm-23, an air cooler-24, a second duplex hydraulic pump-25, a lead-in pipe-26, a third electromagnetic directional valve-27, a third duplex hydraulic pump-25, a third electromagnetic directional valve-27, a third electromagnetic directional valve-6, a second electromagnetic directional valve-9, a PTO test oil pipe-9, a second electromagnetic directional valve-17, a PTO test oil pipe-17, a second electromagnetic directional valve-17, a PTO test oil pipe-18, a second electromagnetic directional valve-20, a second electromagnetic directional valve-14, a third electromagnetic directional valve, a fourth electromagnetic directional valve, a fourth electromagnetic directional valve, a fourth electromagnetic directional valve, a fourth electromagnetic valve, A first branch pipe-28, a second branch pipe-29, a first oil tank-30, a tractor gearbox chassis-31, a second oil tank-32 and a butt joint pipe-33.
Detailed Description
The present invention will be described in detail with reference to fig. 1, and the technical solutions in the embodiments of the present invention will be clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention is realized in this way, construct a kind of tractor performance test hydraulic system, the apparatus includes the joint pipe 1, link pipe 7, both ends of the joint pipe 1 connect to the first electromagnetic directional valve 2 top output end and clutch 20 inboard respectively, the first electromagnetic directional valve 2 is installed on second oil tank 32 output end, and the first electromagnetic directional valve 2 outside output end connects with the discharge pipe 3, the discharge pipe 3 links up in the middle part of outside of the main pipe 6, and install the choke valve 4 and first stop valve 5 on the discharge pipe 3, both ends of the main pipe 6 connect to the diverter valve 15 bottom input end and first pair of hydraulic pump 11 top output end respectively, and install the first filter 12, overflow valve 13 and plate-type relief valve 14 on the main pipe 6 sequentially from bottom to top, link pipe 7 both ends link up in the main pipe 6 outside and second electromagnetic directional valve 8 bottom input end respectively, and link pipe 7 outside left end locate between overflow valve 13 and plate-type relief valve 14, the output end of the top of the second electromagnetic directional valve 8 is inserted with a test tube 9, the test tube 9 is connected to the inner side of a PTO test oil port 10, the PTO test oil port 10 is arranged on the outer side of a tractor gearbox chassis 31, the input end of the bottom of a first duplex hydraulic pump 11 is connected to a first oil tank 30, the output end of the top of a flow divider 15 is provided with a transmission system lubricating oil distribution tube 16, an oil pump assembly lubricating oil tube 17 and a PTO clutch lubricating oil tube 18, the transmission system lubricating oil distribution tube 16, the oil pump assembly lubricating oil tube 17 and the PTO clutch lubricating oil tube 18 are connected to the top of the outer side of the tractor gearbox chassis 31, the middle lower part of the inner side of the transmission system lubricating oil distribution tube 16 is connected with a butt joint tube 33, and a second stop valve 19 is arranged on the oil pump assembly lubricating oil tube 17 and the transmission system lubricating oil distribution tube 16 and the PTO clutch lubricating oil tube 18.
Further, the top of the inner side of the clutch 20 is inserted into the bottom of the outer side of the butt joint pipe 33, the right end of the inner side of the clutch 20 is connected to the left end of the outer side of the oil return pipe 21, two ends of the oil return pipe 21 are respectively connected to the bottom output end of the chassis 31 of the tractor transmission and the input end of the second duplex hydraulic pump 25, the oil return pipe 21 is provided with the second filter 22, the outer side of the second filter 22 is provided with the air cooler 24, the second filter 22 and the first filter 12 are provided with the filter alarm 23, the output end of the second duplex hydraulic pump 25 is connected with the lead-in pipe 26, the lead-in pipe 26 is inserted into the bottom end of the third electromagnetic directional valve 27, the output end of the top of the third electromagnetic directional valve 27 is provided with the first branch pipe 28 and the second branch pipe 29, the first branch pipe 28 penetrates through the outer side of the first oil tank 30, and the second branch pipe 29 is connected to the middle lower part of the outer side of the main pipe 6, and the outer left end of the second branch pipe 29 is located between the first double hydraulic pump 11 and the first filter 12.
Furthermore, the second filter 22 is provided with three oil return pipes 21, and the second filter 22 is provided with a filter alarm 23, so that the filtering quality of the used lubricating oil is improved.
Furthermore, the sizes and the models of the first electromagnetic directional valve 2 and the second electromagnetic directional valve 8 are consistent, so that the first electromagnetic directional valve 2 and the second electromagnetic directional valve 8 can be purchased and installed conveniently.
Further, a throttle valve 4 and a first stop valve 5 are arranged on the discharge pipe 3 and the connecting pipe 7, so that the discharge pipe 3 and the connecting pipe 7 can be opened and closed conveniently.
Further, more than two connectors are arranged on the outer side of the main pipe 6, and the positions of the connectors correspond to the discharge pipe 3, the connecting pipe 7 and the first branch pipe 28, so that the discharge pipe 3, the connecting pipe 7 and the first branch pipe 28 can be conveniently connected to the main pipe 6.
Furthermore, a throttle valve 4 is arranged on the main pipe 6, and the throttle valve 4 on the main pipe 6 is positioned at the rear end of the flow dividing valve 15, so that the main pipe 6 can be conveniently opened and closed.
The invention provides a tractor performance test hydraulic system by improvement, which has the following working principle;
firstly, a YK2004 tractor chassis to be detected is installed on a performance test bench, then a transmission system lubricating oil distribution pipe 16, an oil pump assembly lubricating oil pipe 17 and a PTO clutch lubricating oil pipe 18 are connected to appointed positions on the tractor gearbox chassis 31, and meanwhile a test pipe 9 and an oil return pipe 21 are connected to other appointed positions on the tractor gearbox chassis 31;
secondly, the other components of the unit are then connected, and the electrical equipment on the unit is connected to an external controller which, when testing of the tractor gearbox chassis 31 is required, by opening the first electromagnetic directional valve 2, the throttle valve 4, the first cut-off valve 5, the flow dividing valve 15 and the second cut-off valve 19, and the system pressure can be adjusted to 18 +/-2 bar by adjusting the overflow valve 13, the pressure of the plate-type pressure reducing valve 14 can be adjusted to 5bar, the lubricating oil path is ensured to be supplied with oil all the time, at the moment, the lubricating oil in the first oil tank 30 can be led into the flow dividing valve 15 through the discharge pipe 3 and the main pipe 6, so that the lubricating oil passes through the flow divider valve 15 and enters the power train lubricating oil manifold 16, the oil pump assembly lubricating oil pipe 17 and the PTO clutch lubricating oil pipe 18, guiding lubricating oil into a chassis 31 of a gearbox of the tractor for testing through a transmission system lubricating oil distribution pipe 16, an oil pump assembly lubricating oil pipe 17 and a PTO clutch lubricating oil pipe 18;
thirdly, when the tractor gearbox chassis 31 is used after the test is finished, the duplex hydraulic pump 25 is started, so that the lubricating oil in the tractor gearbox chassis 31 is discharged outwards through the oil return pipe 21, the lubricating oil in the oil return pipe 21 can be filtered through the second filter 22 in the flowing process, the filtered lubricating oil can be selected to start the third electromagnetic directional valve 27 to guide the lubricating oil into the second oil tank 32 through the second branch pipe 29 for storage, or the third electromagnetic directional valve 27 is controlled to enable the lubricating oil to flow back into the main pipe 6 through the first branch pipe 28 for recycling, and when the YN1204 tractor needs to be tested, the YN1204 tractor can be tested by replacing and selecting the corresponding pipeline.
The invention provides a tractor performance test hydraulic system through improvement, lubricating oil is led into a tractor gearbox chassis 31 through a transmission system lubricating oil distribution pipe 16, an oil pump assembly lubricating oil pipe 17 and a PTO clutch lubricating oil pipe 18 for testing, and the tested lubricating oil is discharged and collected through an oil return pipe 21, so that a test platform is conveniently provided for the tractor gearbox chassis of a tractor chassis, and the tractor gearbox chassis is conveniently produced.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described, and the standard parts used in the present invention are all available on the market, the special-shaped parts can be customized according to the description and the accompanying drawings, the specific connection mode of each part adopts the conventional means of bolt and rivet, welding and the like mature in the prior art, the machinery, parts and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, and the details are not described herein.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. The utility model provides a tractor capability test hydraulic system which characterized in that: the structure of the hydraulic clutch comprises a connecting pipe (1) and a linking pipe (7), wherein two ends of the connecting pipe (1) are respectively connected to the top output end of a first electromagnetic directional valve (2) and the inner side of a clutch (20), the first electromagnetic directional valve (2) is installed on the output end of a second oil tank (32), the outer output end of the first electromagnetic directional valve (2) is connected with a discharge pipe (3), the discharge pipe (3) is linked in the middle of the outer side of a main pipe (6), a throttle valve (4) and a first stop valve (5) are installed on the discharge pipe (3), two ends of the main pipe (6) are respectively connected to the bottom input end of a flow dividing valve (15) and the top output end of a first double-linked hydraulic pump (11), a first filter (12), an overflow valve (13) and a plate type pressure reducing valve (14) are sequentially installed on the main pipe (6) from bottom to top, two ends of the linking pipe (7) are respectively linked in the outer side of the main pipe (6) and the bottom input end of a second electromagnetic directional valve (8), the left end of the outer side of the linking pipe (7) is located between the overflow valve (13) and the plate-type pressure reducing valve (14), the output end of the top of the second electromagnetic reversing valve (8) is connected with the test pipe (9) in an inserting mode, the test pipe (9) is connected to the inner side of the PTO test oil port (10), the PTO test oil port (10) is arranged on the outer side of a tractor gearbox chassis (31), the input end of the bottom of the first duplex hydraulic pump (11) is connected to the first oil tank (30), the output end of the top of the flow dividing valve (15) is provided with a transmission system lubricating oil distributing pipe (16), an oil pump assembly lubricating oil pipe (17) and a PTO clutch lubricating oil pipe (18), the transmission system lubricating oil distributing pipe (16), the oil pump assembly lubricating oil pipe (17) and the PTO clutch lubricating oil pipe (18) are connected to the top of the outer side of the tractor chassis (31), and the middle lower portion of the inner side of the transmission system lubricating oil distributing pipe (16) is connected with a butt joint pipe (33), a second stop valve (19) is arranged on the lubricating oil pipe (17) of the oil pump assembly and the lubricating oil pipe (18) of the PTO clutch of the transmission system lubricating oil distributing pipe (16);
the top of the inner side of the clutch (20) is inserted into the bottom of the outer side of the butt joint pipe (33), the right end of the inner side of the clutch (20) is connected to the left end of the outer side of the oil return pipe (21), the two ends of the oil return pipe (21) are respectively connected to the output end of the bottom of a chassis (31) of a tractor gearbox and the input end of a second duplex hydraulic pump (25), the oil return pipe (21) is provided with a second filter (22), the outer side of the second filter (22) is provided with an air cooler (24), the second filter (22) and a first filter (12) are provided with filter alarms (23), the output end of the second duplex hydraulic pump (25) is connected with a lead-in pipe (26), the lead-in pipe (26) is inserted into the bottom end of a third electromagnetic directional valve (27), the output end of the top of the third electromagnetic directional valve (27) is provided with a first branch pipe (28) and a second branch pipe (29), the first branch pipe (28) penetrates through the outer side of the first oil tank (30), the second branch pipe (29) is connected to the middle lower part of the outer side of the main pipe (6), and the left end of the outer side of the second branch pipe (29) is located between the first duplex hydraulic pump (11) and the first filter (12);
the second filter (22) is provided with three oil return pipes (21), and the second filter (22) is provided with a filter alarm (23).
2. The tractor performance test hydraulic system of claim 1, characterized in that: the first electromagnetic directional valve (2) and the second electromagnetic directional valve (8) are identical in size and model.
3. The tractor performance test hydraulic system of claim 1, characterized in that: and the discharge pipe (3) and the connecting pipe (7) are respectively provided with a throttle valve (4) and a first stop valve (5).
4. The tractor performance test hydraulic system of claim 1, characterized in that: more than two connectors are arranged on the outer side of the main pipe (6), and the positions of the connectors correspond to the discharge pipe (3), the connecting pipe (7) and the first branch pipe (28).
5. The tractor performance test hydraulic system of claim 1, characterized in that: the main pipe (6) is provided with a throttle valve (4), and the throttle valve (4) on the main pipe (6) is positioned at the rear end of the flow divider (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111513241.2A CN114295391A (en) | 2021-12-12 | 2021-12-12 | Tractor performance test hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111513241.2A CN114295391A (en) | 2021-12-12 | 2021-12-12 | Tractor performance test hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114295391A true CN114295391A (en) | 2022-04-08 |
Family
ID=80967092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111513241.2A Pending CN114295391A (en) | 2021-12-12 | 2021-12-12 | Tractor performance test hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114295391A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100598267B1 (en) * | 2005-04-20 | 2006-07-07 | 동양물산기업 주식회사 | Oil pressure controlling apparatus of tractor |
| CN203869881U (en) * | 2014-05-05 | 2014-10-08 | 南京农业大学 | Tractor electronic hydraulic steering experimental platform |
| CN108006209A (en) * | 2017-03-29 | 2018-05-08 | 长城汽车股份有限公司 | Double clutch automatic speed changing case cooling and lubricating hydraulic control system and vehicle |
| CN109958763A (en) * | 2017-12-26 | 2019-07-02 | 长城汽车股份有限公司 | A kind of hydraulic control system and speed changer, vehicle of double-clutch automatic gearbox |
| CN210218310U (en) * | 2019-04-30 | 2020-03-31 | 中联重机股份有限公司 | Agricultural machine hydraulic pressure circulation system and tractor |
| CN111503091A (en) * | 2020-05-22 | 2020-08-07 | 第一拖拉机股份有限公司 | Testing device and testing method for tractor hydraulic multi-way valve |
| CN112081797A (en) * | 2020-09-29 | 2020-12-15 | 江苏常发农业装备股份有限公司 | Tractor low-voltage electro-hydraulic control system |
| CN216846909U (en) * | 2021-12-12 | 2022-06-28 | 江苏悦达智能农业装备有限公司 | Tractor performance test hydraulic station |
-
2021
- 2021-12-12 CN CN202111513241.2A patent/CN114295391A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100598267B1 (en) * | 2005-04-20 | 2006-07-07 | 동양물산기업 주식회사 | Oil pressure controlling apparatus of tractor |
| CN203869881U (en) * | 2014-05-05 | 2014-10-08 | 南京农业大学 | Tractor electronic hydraulic steering experimental platform |
| CN108006209A (en) * | 2017-03-29 | 2018-05-08 | 长城汽车股份有限公司 | Double clutch automatic speed changing case cooling and lubricating hydraulic control system and vehicle |
| CN109958763A (en) * | 2017-12-26 | 2019-07-02 | 长城汽车股份有限公司 | A kind of hydraulic control system and speed changer, vehicle of double-clutch automatic gearbox |
| CN210218310U (en) * | 2019-04-30 | 2020-03-31 | 中联重机股份有限公司 | Agricultural machine hydraulic pressure circulation system and tractor |
| CN111503091A (en) * | 2020-05-22 | 2020-08-07 | 第一拖拉机股份有限公司 | Testing device and testing method for tractor hydraulic multi-way valve |
| CN112081797A (en) * | 2020-09-29 | 2020-12-15 | 江苏常发农业装备股份有限公司 | Tractor low-voltage electro-hydraulic control system |
| CN216846909U (en) * | 2021-12-12 | 2022-06-28 | 江苏悦达智能农业装备有限公司 | Tractor performance test hydraulic station |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102169053B (en) | Hydraulic control loop of high/low-temperature test bed for automatic transmission valve | |
| CN101725705B (en) | Double-clutch speed changer integrated control module | |
| CN102510961B (en) | For the electro-hydraulic actuation group of vehicle servo Aided Machine speed changer | |
| CN216846909U (en) | Tractor performance test hydraulic station | |
| CN202013270U (en) | Hydraulic control circuit of automatic transmission valve body high and low temperature testing stand | |
| MX2007002319A (en) | Hydraulic lubrication filter circuit. | |
| CN208057559U (en) | Pump hydraulic system operating mode switching device | |
| WO2021026946A1 (en) | Multifunctional test bench for power split hydraulic mechanical composite transmission system, and application thereof | |
| CN102944420A (en) | Dual-clutch automatic transmission hydraulic module performance test platform and method | |
| CN114295391A (en) | Tractor performance test hydraulic system | |
| CN112081785A (en) | Fracturing unit truck engine starts valve block and starts hydraulic system | |
| CN212203976U (en) | Three-input main reducer's lubricating system cooling device | |
| CN202441673U (en) | Oil cylinder testing platform | |
| CN201618342U (en) | Fire extinguisher tunnel-body water-pressure multifunctional testing machine | |
| CN208859305U (en) | A kind of oil changing machine for gearbox and lubricating system | |
| CN216899626U (en) | AMT system test rack | |
| CN204142446U (en) | A kind of engine general assembly line seal checks hydraulic system | |
| CN211176264U (en) | Lubrication test system for oil flow test of heavy gearbox | |
| CN208982647U (en) | A kind of Pneumatic shifting device | |
| CN214118606U (en) | Hydraulic pump station for orchard management and protection equipment | |
| CN203384007U (en) | Non-evacuation unloading starting system of compressor | |
| CN220168262U (en) | Gear shifting electromagnetic valve and electric tractor | |
| CN201175739Y (en) | Novel centralization control type vehicle body inspection machine hydraulic line | |
| CN204924673U (en) | Tractor power drive line test bench that shifts | |
| CN218295343U (en) | Compressed gas distribution pipeline based on water supply system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |