CN216842507U - Power reversing hydraulic system of tractor - Google Patents
Power reversing hydraulic system of tractor Download PDFInfo
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- CN216842507U CN216842507U CN202123105015.9U CN202123105015U CN216842507U CN 216842507 U CN216842507 U CN 216842507U CN 202123105015 U CN202123105015 U CN 202123105015U CN 216842507 U CN216842507 U CN 216842507U
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Abstract
The utility model discloses a tractor power switching-over hydraulic system, including oil absorption filter, constant flow pump, high pressure filter, full hydraulic steering gear, steering cylinder, system pressure control valve, lubricating pressure control valve, energy storage ware, first electromagnetic reversing valve, second electromagnetic reversing valve, F clutch control valve, R clutch control valve, PTO clutch control valve, lubricating filter control valve, HI clutch control valve and LOW clutch control valve, the utility model discloses replace traditional mechanical type switching-over, the switching of valve is reliable and stable under the different action requirements, does not have the impact, and the action is sensitive, and the work demand under the different requirements can be realized to the reaction time quantum; the electrification degree is high, the control accuracy of the proportional valve is higher, and the gears, the shafts and the like can be lubricated and cooled, so that the service life of mechanical parts is protected; and the degree of automation is high, the overall spatial arrangement of the hydraulic system is reasonable, and the maintenance is convenient.
Description
Technical Field
The utility model relates to a tractor power switching-over relevant field specifically is a tractor power switching-over hydraulic system.
Background
The tractor is a self-propelled power machine used for dragging and driving the operation machinery to complete various mobile operations, and can also be used as fixed operation power; the system consists of an engine, a transmission system, a walking system, a steering system, a hydraulic suspension system, a power output system, an electric instrument system, a driving control system, a traction system and other systems or devices; the tractor in the prior art usually adopts mechanical reversing and high-low gear, has complex operation and low automation degree, and is inconvenient for lubricating and cooling gears, shafts and the like.
SUMMERY OF THE UTILITY MODEL
Therefore, in order to solve the above-mentioned insufficiency, the utility model provides a tractor power switching-over hydraulic system here.
The utility model is realized in such a way, a tractor power reversing hydraulic system is constructed, the device comprises an oil absorption filter, a constant flow pump, a high pressure filter, a full hydraulic steering gear, a steering oil cylinder, a system pressure control valve, a lubricating pressure control valve, an energy accumulator, a first electromagnetic reversing valve, a second electromagnetic reversing valve, an F clutch control valve, an R clutch control valve, a PTO clutch control valve, a lubricating filter control valve, a HI clutch control valve, a LOW clutch control valve, a four-wheel drive clutch control valve, a differential lock control valve, a C6 lubricating control valve, a C7 lubricating control valve and a C8 lubricating throttle valve, one end of the oil absorption filter is connected with the constant flow pump, the other end of the constant flow pump is connected with the full hydraulic steering gear through the high pressure filter, one end of the full hydraulic steering gear is connected with the steering oil cylinder, and the oil return end of the full hydraulic steering gear is connected with the system pressure control valve, and 2.2MPa pressure oil is generated, when an electric signal is simultaneously supplied to the first electromagnetic directional valve and the second electromagnetic directional valve, the oil liquid reaches the front of valve ports of an F clutch control valve, an R clutch control valve, a PTO clutch control valve, an HI clutch control valve, a LOW clutch control valve, a four-drive clutch control valve and a differential lock control valve, the output end of the system pressure control valve is connected with a lubricating pressure control valve, an energy accumulator and a lubricating filter control valve, and the other end of the lubricating filter control valve is connected with a C6 lubricating control valve, a C7 lubricating control valve and a C8 lubricating throttle valve.
Preferably, the other end of the lubricating pressure control valve is connected with the second electromagnetic directional valve, the F clutch control valve, the R clutch control valve and the PTO clutch control valve.
Preferably, the accumulator is used for stabilizing pressure and buffering hydraulic impact, and the other end of the accumulator is connected with the first electromagnetic directional valve.
Preferably, the constant flow pump sucks oil from the gearbox through the oil suction filter, high-pressure oil is generated from the constant flow pump, and the high-pressure oil flows out through the high-pressure filter.
Preferably, the other end of the C6 lubrication control valve is connected with the auxiliary power output PTO end lubrication part.
Preferably, the other end of the C7 lubrication control valve is connected with a differential lock.
Preferably, the C8 lubrication throttle communicates with the gearbox lubrication to lubricate the associated gears and shafts.
The utility model has the advantages of as follows: the utility model discloses an improve and provide a tractor power switching-over hydraulic system here, compare with equipment of the same type, have following improvement:
the method has the advantages that: a tractor power switching-over hydraulic system replaces traditional mechanical type switching-over, and the switching of valve is reliable and stable under the different action requirements, does not have the impact, and the action is sensitive, and the different work demands that require down can be realized to the reaction time section.
The method has the advantages that: the power reversing hydraulic system of the tractor has high electrification degree and higher control precision of the proportional valve, and can lubricate and cool gears, shafts and the like, thereby protecting the service life of mechanical parts; and the degree of automation is high, the overall spatial arrangement of the hydraulic system is reasonable, and the maintenance is convenient.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Wherein: the system comprises an oil absorption filter-1, a constant flow pump-2, a high-pressure filter-3, a full hydraulic steering gear-4, a steering oil cylinder-5, a system pressure control valve-6, a lubricating pressure control valve-7, an energy accumulator-8, a first electromagnetic reversing valve-9, a second electromagnetic reversing valve-10, an F clutch control valve-11, an R clutch control valve-12, a PTO clutch control valve-13, a lubricating filter control valve-14, a HI clutch control valve-15, a LOW clutch control valve-16, a four-wheel drive clutch control valve-17, a differential lock control valve-18, a C6 lubricating control valve-19, a C7 lubricating control valve-20 and a C8 lubricating throttle valve-21.
Detailed Description
The present invention will be described in detail with reference to the accompanying 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 some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model discloses a tractor power reversing hydraulic system, including oil absorption filter 1, constant flow pump 2, high pressure filter 3, full hydraulic steering gear 4, steering cylinder 5, system pressure control valve 6, lubrication pressure control valve 7, accumulator 8, first electromagnetic directional valve 9, second electromagnetic directional valve 10, F clutch control valve 11, R clutch control valve 12, PTO clutch control valve 13, lubrication filter control valve 14, HI clutch control valve 15, LOW clutch control valve 16, four-wheel drive clutch control valve 17, differential lock control valve 18, C6 lubrication control valve 19, C7 lubrication control valve 20 and C8 lubrication throttle valve 21, oil absorption filter 1 one end is connected with constant flow pump 2, the other end of constant flow pump 2 is connected with full hydraulic steering gear 4 through high pressure filter 3, constant flow pump 2 inhales oil through filter 1 from the gearbox in, high pressure oil is generated from a constant flow pump 2 and flows out through a high pressure filter 3, one end of a full hydraulic steering gear 4 is connected with a steering oil cylinder 5, the oil return end of the full hydraulic steering gear 4 is connected with a system pressure control valve 6 to generate 2.2MPa pressure oil, when electric signals are simultaneously sent to a first electromagnetic reversing valve 9 and a second electromagnetic reversing valve 10, the oil reaches the front of a valve port of an F clutch control valve 11, an R clutch control valve 12, a PTO clutch control valve 13, a HI clutch control valve 15, a LOW clutch control valve 16, a four-wheel drive clutch control valve 17 and a differential lock control valve 18, the output end of the system pressure control valve 6 is connected with a lubricating pressure control valve 7, an energy accumulator 8 and a lubricating filter control valve 14, the energy accumulator 8 is used for stabilizing pressure and buffering hydraulic impact, the other end of the energy accumulator 8 is connected with the first electromagnetic reversing valve 9, the other end of the lubricating filter control valve 14 is connected with a C6 lubricating control valve 19, The other end of the C7 lubrication control valve 20 and the C8 lubrication throttle valve 21 are connected with a PTO end lubrication part of the auxiliary power output, the other end of the C6 lubrication control valve 19 is connected with a differential lock part, the other end of the C7 lubrication control valve 20 is connected with the differential lock part, the C8 lubrication throttle valve 21 is communicated with a lubrication part of a gearbox to lubricate related gears and shafts, and the other end of the lubrication pressure control valve 7 is connected with the second electromagnetic directional valve 10, the F clutch control valve 11, the R clutch control valve 12 and the PTO clutch control valve 13.
The utility model provides a tractor power reversing hydraulic system through improvement, and the working principle is as follows;
firstly, a constant flow pump 2 absorbs oil from a gearbox, the oil passes through an oil absorption filter 1, high-pressure oil is generated from the constant flow pump 2, the high-pressure oil passes through a high-pressure filter 3, the high-pressure oil passes through a full-hydraulic steering gear 4 and a steering oil cylinder 5, and pressure oil of 2.2MPa is generated after the high-pressure oil passes through a system pressure control valve 6 by utilizing return oil passing through the full-hydraulic steering gear 4;
secondly, the energy accumulator 8 plays a role in stabilizing pressure and buffering hydraulic impact in the system, when an electric signal is simultaneously sent to the two-position two-way first electromagnetic directional valve 9 and the second electromagnetic directional valve 10, oil reaches the front of valve ports of the F clutch control valve 11, the R clutch control valve 12, the PTO clutch control valve 13, the HI clutch control valve 15, the LOW clutch control valve 16, the four-wheel drive clutch control valve 17 and the differential lock control valve 18;
thirdly, when the vehicle needs to move forwards, the F clutch control valve 11 obtains a signal to change the direction of a valve core, and the vehicle is in a forward mode at the moment; when backing is needed, the R clutch control valve 12 obtains a signal to change the valve core direction, and is in a backing mode at the moment; when the PTO is required to be combined, the PTO clutch control valve 13 obtains a signal to change direction, the oil path is communicated, and the PTO is combined; when a high gear is required, the HI clutch control valve 15 obtains a signal to reverse the valve core, and is in a high gear mode at the moment; when a LOW gear is required, the LOW clutch control valve 16 obtains a signal to change the valve core, and is in a LOW gear mode at the moment;
fourthly, under the normal condition, the four-wheel drive is in a working state, if the four-wheel drive is not needed, only the two-wheel drive is needed to move, the four-wheel drive clutch control valve 17 is electrified to change the direction, the four-wheel drive is disconnected, and at the moment, the four-wheel drive is in a two-wheel drive movement mode; when a differential lock is needed, the differential lock control valve 18 obtains a signal to change the spool direction, and is in a differential lock mode at the moment; meanwhile, 4 bar of pressure oil can be generated after the oil passes through the lubricating filter control valve 14, the oil is divided into three paths, the first path reaches a PTO lubricating position through the C6 lubricating control valve 19 to lubricate related parts, the second path reaches a differential lock position through the C7 lubricating control valve 20 to lubricate related parts, the third path reaches a gearbox lubricating position through the C8 lubricating throttle valve 21 to lubricate related gears and shafts, and finally the oil returns to the oil tank through the oil return port and the lubricating oil port.
The utility model provides a tractor power reversing hydraulic system through improvement, which replaces the traditional mechanical reversing, the switching of the valve is stable and reliable under different action requirements, no impact exists, the action is sensitive, and the working requirements under different requirements can be realized during the reaction time period; the electrification degree is high, the control accuracy of the proportional valve is higher, and the gears, the shafts and the like can be lubricated and cooled, so that the service life of mechanical parts is protected; and the degree of automation is high, the overall spatial arrangement of the hydraulic system is reasonable, and the maintenance is convenient.
The basic principle and the main characteristics of the utility model and the advantages of the utility model have been shown and described above, and the utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the record of the description with the drawing, and the concrete connection mode of each part all adopts conventional means such as ripe bolt rivet among the prior art, welding, and machinery, part and equipment all adopt prior art, conventional model, and conventional connection mode in the prior art is adopted in addition to circuit connection, and the details are not repeated here.
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 (7)
1. The utility model provides a tractor power switching-over hydraulic system which characterized in that: the structure of the oil absorption device comprises an oil absorption filter (1), a first electromagnetic reversing valve (9) and a second electromagnetic reversing valve (10), wherein one end of the oil absorption filter (1) is connected with a constant flow pump (2), the other end of the constant flow pump (2) is connected with a full-hydraulic steering gear (4) through a high-pressure filter (3), one end of the full-hydraulic steering gear (4) is connected with a steering oil cylinder (5), the oil return end of the full-hydraulic steering gear (4) is connected with a system pressure control valve (6), when electric signals are simultaneously sent to the first electromagnetic reversing valve (9) and the second electromagnetic reversing valve (10), oil reaches the front of valve ports of an F clutch control valve (11), an R clutch control valve (12), a PTO clutch control valve (13), an HI clutch control valve (15), a LOW clutch control valve (16), a four-drive clutch control valve (17) and a differential lock control valve (18), the output end of the system pressure control valve (6) is connected with the lubricating pressure control valve (7), the energy accumulator (8) and the lubricating filter control valve (14), and the other end of the lubricating filter control valve (14) is connected with the C6 lubricating control valve (19), the C7 lubricating control valve (20) and the C8 lubricating throttle valve (21).
2. The power reversing hydraulic system of the tractor according to claim 1, characterized in that: the other end of the lubricating pressure control valve (7) is connected with a second electromagnetic directional valve (10), an F clutch control valve (11), an R clutch control valve (12) and a PTO clutch control valve (13).
3. The power reversing hydraulic system of the tractor according to claim 1, characterized in that: the energy accumulator (8) is used for stabilizing pressure and buffering hydraulic impact, and the other end of the energy accumulator (8) is connected with the first electromagnetic directional valve (9).
4. The power reversing hydraulic system of the tractor according to claim 1, characterized in that: the constant flow pump (2) absorbs oil from the gearbox through the oil absorption filter (1), high-pressure oil is generated from the constant flow pump (2), and the high-pressure oil flows out through the high-pressure filter (3).
5. The power reversing hydraulic system of the tractor according to claim 1, characterized in that: the other end of the C6 lubrication control valve (19) is connected with the lubrication part at the PTO end of the auxiliary power output.
6. The power reversing hydraulic system of the tractor according to claim 1, characterized in that: the other end of the C7 lubrication control valve (20) is connected with a differential lock.
7. The tractor power reversing hydraulic system of claim 1, characterized in that: the C8 lubrication throttle valve (21) is communicated with a lubrication position of the gearbox to lubricate related gears and shafts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123105015.9U CN216842507U (en) | 2021-12-12 | 2021-12-12 | Power reversing hydraulic system of tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123105015.9U CN216842507U (en) | 2021-12-12 | 2021-12-12 | Power reversing hydraulic system of tractor |
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| Publication Number | Publication Date |
|---|---|
| CN216842507U true CN216842507U (en) | 2022-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123105015.9U Active CN216842507U (en) | 2021-12-12 | 2021-12-12 | Power reversing hydraulic system of tractor |
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| CN (1) | CN216842507U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114278621A (en) * | 2021-12-12 | 2022-04-05 | 江苏悦达智能农业装备有限公司 | Power reversing power high-low gear hydraulic system special for tractor |
| CN115285216A (en) * | 2022-07-25 | 2022-11-04 | 洛阳拖拉机研究所有限公司 | Tractor hydraulic system with bidirectional driving function and steering control method |
-
2021
- 2021-12-12 CN CN202123105015.9U patent/CN216842507U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114278621A (en) * | 2021-12-12 | 2022-04-05 | 江苏悦达智能农业装备有限公司 | Power reversing power high-low gear hydraulic system special for tractor |
| CN115285216A (en) * | 2022-07-25 | 2022-11-04 | 洛阳拖拉机研究所有限公司 | Tractor hydraulic system with bidirectional driving function and steering control method |
| CN115285216B (en) * | 2022-07-25 | 2023-12-19 | 洛阳拖拉机研究所有限公司 | Tractor hydraulic system with bidirectional driving function and steering control method |
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