CN212738265U - Independent oil supply system for suspension mechanism and steering mechanism of agricultural tractor - Google Patents
Independent oil supply system for suspension mechanism and steering mechanism of agricultural tractor Download PDFInfo
- Publication number
- CN212738265U CN212738265U CN202021803170.0U CN202021803170U CN212738265U CN 212738265 U CN212738265 U CN 212738265U CN 202021803170 U CN202021803170 U CN 202021803170U CN 212738265 U CN212738265 U CN 212738265U
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- steering
- oil
- hydraulic
- suspension
- valve
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- 239000000725 suspension Substances 0.000 title claims abstract description 38
- 239000003921 oil Substances 0.000 claims abstract description 57
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 15
- 230000007547 defect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003631 expected effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
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Abstract
The utility model discloses an independent oil feeding system of agricultural tractor suspension mechanism and steering mechanism, it belongs to agricultural machine technical field. The tractor solves the defect that the pressure of a suspension oil cylinder is lower and the working efficiency is low when the tractor hangs a heavy farm tool in the prior art. The main structure of the hydraulic steering system comprises a hydraulic oil tank, a working pump, a priority valve, a gear pump, a suspension hydraulic system and a steering hydraulic system, wherein oil suction ports of the working pump and the gear pump are connected with the hydraulic oil tank, an oil outlet of the gear pump is connected with the priority valve, a CF port of the priority valve is connected with the steering hydraulic system, and an EF port and an oil outlet of the working pump are connected with the suspension hydraulic system in parallel. The utility model is mainly used for tractors.
Description
The technical field is as follows:
the utility model belongs to the technical field of agricultural machine, specifically speaking especially relates to an independent oil feeding system of agricultural tractor suspension mechanism and steering mechanism.
Background art:
the tractor is used for drawing and driving the operation machinery to complete various movable operations, and consists of systems or devices such as an engine, transmission, walking, steering, hydraulic suspension, power output, an electric instrument, driving control, drawing and the like, wherein the power of the engine is transmitted to a driving wheel by a transmission mechanism, so that the tractor runs or operates.
Agricultural tractor hangs and promotes more frequently, and consequently fluid generates heat seriously, and suspension among the prior art and a steering system's oil tank are placed on the tractor lifting mechanism, and this just causes hydraulic tank's volume to be limited, can not fine heat dissipation, and long-time the use makes the lifting mechanism operation slower, easily breaks down, and when hanging heavier agricultural implement, the pressure of hanging the hydro-cylinder often can not reach the expected effect, causes inconvenience for actual work.
The invention content is as follows:
the to-be-solved technical problem of the utility model is to overcome prior art's is not enough, provides an independent oil feeding system of agricultural tractor suspension mechanism and steering mechanism, and its confluence effect through gear pump and working pump can select the working pump of little discharge capacity, has saved manufacturing cost, has guaranteed work efficiency again.
In order to achieve the above purpose, the utility model is realized by adopting the following technical scheme:
the utility model provides an independent oil feeding system of agricultural tractor suspension mechanism and steering mechanism, includes hydraulic tank, working pump, priority valve, gear pump, suspension hydraulic system and steering hydraulic system, the oil absorption mouth of working pump and gear pump all is connected with hydraulic tank, and the oil-out and the priority valve of gear pump are connected, and the CF mouth and the steering hydraulic system of priority valve are connected, EF mouth and the oil-out parallel connection back of working pump are connected with suspension hydraulic system.
Preferably, the suspension hydraulic system comprises a reversing valve, a flow distributing and collecting valve, a hydraulic lock and a suspension oil cylinder, wherein the reversing valve is connected with the hydraulic lock through the flow distributing and collecting valve, and the hydraulic lock is further connected with the suspension oil cylinder.
Preferably, the steering hydraulic system comprises a steering cylinder and a steering gear, and the steering gear is respectively connected with the steering cylinder and the CF port of the priority valve.
Preferably, a check valve and an energy accumulator are arranged on an oil outlet oil way of the working pump.
Preferably, the hydraulic oil tank is fixedly installed on a left side or a right side frame of the agricultural tractor.
Preferably, radiators are arranged on oil return pipelines of the reversing valve and the steering gear.
Compared with the prior art, the beneficial effects of the utility model are that:
1. when a heavy agricultural implement is hung, the priority valve is switched to the EF port to work, high-pressure oil from the gear pump enters the hanging oil cylinder together through the EF port of the priority valve and high-pressure oil from the working pump in a confluence manner, the heavy agricultural implement is lifted, and a working pump with small displacement can be selected through the confluence effect of the gear pump and the working pump, so that the production cost is saved, and the working efficiency is ensured;
2. the hydraulic oil tank is installed and fixed on the left side or the right side frame of the agricultural tractor, the volume of the hydraulic oil tank is increased, the heat dissipation effect is better, and the working efficiency is improved.
Description of the drawings:
FIG. 1 is a hydraulic schematic diagram of the present invention;
fig. 2 is the mounting structure schematic diagram of the middle hydraulic oil tank of the present invention.
In the figure: 1. a hydraulic oil tank; 2. a heat sink; 3. a working pump; 4. an accumulator; 5. a diverter valve; 6. a flow distributing and collecting valve; 7. hydraulic locking; 8. suspending the oil cylinder; 9. a steering cylinder; 10. a diverter; 11. a priority valve; 12. a gear pump; 13. a one-way valve.
The specific implementation mode is as follows:
the present invention will be further described with reference to the following specific embodiments and accompanying drawings.
Example (b):
as shown in fig. 1, an independent oil supply system for a suspension mechanism and a steering mechanism of an agricultural tractor comprises a hydraulic oil tank 1, a working pump 3, a priority valve 11, a gear pump 12, a suspension hydraulic system and a steering hydraulic system, wherein oil suction ports of the working pump 3 and the gear pump 12 are connected with the hydraulic oil tank 1, an oil outlet of the gear pump 12 is connected with the priority valve 11, a CF port of the priority valve 11 is connected with the steering hydraulic system, and an EF port is connected with an oil outlet of the working pump 3 in parallel and then connected with the suspension hydraulic system; the pressure stability can be ensured by the priority valve 11 when the steering hydraulic system is inactive and the suspension hydraulic system is working intensively.
The suspension hydraulic system comprises a reversing valve 5, a flow distributing and collecting valve 6, a hydraulic lock 7 and a suspension oil cylinder 8, wherein the reversing valve 5 is connected with the hydraulic lock 7 through the flow distributing and collecting valve 6, and the hydraulic lock 7 is further connected with the suspension oil cylinder 8. The flow distributing and collecting valve 6 is used for ensuring the consistency of actions when the two suspension oil cylinders 8 rise or fall; the hydraulic lock 7 is used for ensuring that the suspension oil cylinder 8 does not settle when the suspension oil cylinder 8 is in a stable state; the reversing valve 5 is an electric control reversing valve and is used for realizing remote control operation on the tractor.
The steering hydraulic system comprises a steering oil cylinder 9 and a steering gear 10, wherein the steering gear 10 is respectively connected with the steering oil cylinder 9 and a CF port of a priority valve 11; and a check valve 13 and an energy accumulator 4 are arranged on an oil outlet oil way of the working pump 3.
As shown in fig. 2, the hydraulic oil tank 1 is mounted and fixed on a left or right frame of an agricultural tractor, so that the volume of the hydraulic oil tank 1 is increased, the heat dissipation effect is better, and the working efficiency is higher; the oil return pipelines of the reversing valve 5 and the steering gear 10 are provided with the radiators 2, the hydraulic oil tank 1 is further cooled through the radiators 2, and the working efficiency of the whole machine is improved.
The utility model discloses a theory of operation does:
when the agricultural tractor needs to turn, high-pressure oil from the gear pump 12 enters the steering gear 10 through a CF port of the priority valve 11 and finally enters the steering oil cylinder 9 for turning, when the agricultural implement needs to be hung and lifted, the working pump 3 works, and the high-pressure oil sequentially passes through the check valve 13, the reversing valve 5, the flow dividing and collecting valve 6 and the hydraulic lock 7 and finally enters the hanging oil cylinder 8 for lifting the agricultural implement;
when the suspended farm tool is heavy, the priority valve 11 is switched to the EF port to work, high-pressure oil from the gear pump 12 enters the reversing valve 5, the flow dividing and collecting valve 6 and the hydraulic lock 7 together through the EF port of the priority valve 11 and high-pressure oil from the working pump 3 in a confluence manner, and finally enters the suspension oil cylinder 8 to lift the heavy farm tool, so that the working pump 3 with small displacement can be selected through the confluence effect of the gear pump 12 and the working pump 3, the manufacturing cost is saved, and the working efficiency is ensured.
Claims (6)
1. The utility model provides an independent oil feeding system of agricultural tractor suspension mechanism and steering mechanism which characterized in that: the hydraulic steering system comprises a hydraulic oil tank (1), a working pump (3), a priority valve (11), a gear pump (12), a suspension hydraulic system and a steering hydraulic system, oil suction ports of the working pump (3) and the gear pump (12) are connected with the hydraulic oil tank (1), an oil outlet of the gear pump (12) is connected with the priority valve (11), a CF port of the priority valve (11) is connected with the steering hydraulic system, and an EF port and an oil outlet of the working pump (3) are connected with the suspension hydraulic system after being connected in parallel.
2. An independent oil supply system for a suspension mechanism and a steering mechanism of an agricultural tractor according to claim 1, wherein: the suspension hydraulic system comprises a reversing valve (5), a flow distributing and collecting valve (6), a hydraulic lock (7) and a suspension oil cylinder (8), wherein the reversing valve (5) is connected with the hydraulic lock (7) through the flow distributing and collecting valve (6), and the hydraulic lock (7) is further connected with the suspension oil cylinder (8).
3. An independent oil supply system for a suspension mechanism and a steering mechanism of an agricultural tractor according to claim 2, wherein: the steering hydraulic system comprises a steering oil cylinder (9) and a steering gear (10), wherein the steering gear (10) is respectively connected with CF ports of the steering oil cylinder (9) and a priority valve (11).
4. An independent oil supply system for a suspension mechanism and a steering mechanism of an agricultural tractor according to claim 3, wherein: and a check valve (13) and an energy accumulator (4) are arranged on an oil outlet oil way of the working pump (3).
5. An independent oil supply system for a suspension mechanism and a steering mechanism of an agricultural tractor according to claim 4, wherein: the hydraulic oil tank (1) is installed and fixed on a left side or a right side frame of the agricultural tractor.
6. An independent oil supply system for a suspension mechanism and a steering mechanism of an agricultural tractor according to claim 5, wherein: and radiators (2) are arranged on oil return pipelines of the reversing valve (5) and the steering gear (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021803170.0U CN212738265U (en) | 2020-08-25 | 2020-08-25 | Independent oil supply system for suspension mechanism and steering mechanism of agricultural tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021803170.0U CN212738265U (en) | 2020-08-25 | 2020-08-25 | Independent oil supply system for suspension mechanism and steering mechanism of agricultural tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212738265U true CN212738265U (en) | 2021-03-19 |
Family
ID=74991330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021803170.0U Expired - Fee Related CN212738265U (en) | 2020-08-25 | 2020-08-25 | Independent oil supply system for suspension mechanism and steering mechanism of agricultural tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212738265U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114278625A (en) * | 2021-12-12 | 2022-04-05 | 江苏悦达智能农业装备有限公司 | Hydraulic system of electric tractor |
| CN115139725A (en) * | 2022-09-06 | 2022-10-04 | 万向钱潮股份公司 | Hydraulic active suspension system |
| CN115352523A (en) * | 2022-07-28 | 2022-11-18 | 山东蓬翔汽车有限公司 | Full hydraulic steering system of wide-body dump truck |
-
2020
- 2020-08-25 CN CN202021803170.0U patent/CN212738265U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114278625A (en) * | 2021-12-12 | 2022-04-05 | 江苏悦达智能农业装备有限公司 | Hydraulic system of electric tractor |
| CN115352523A (en) * | 2022-07-28 | 2022-11-18 | 山东蓬翔汽车有限公司 | Full hydraulic steering system of wide-body dump truck |
| CN115139725A (en) * | 2022-09-06 | 2022-10-04 | 万向钱潮股份公司 | Hydraulic active suspension system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210319 |