CN218760662U - Oil absorption pressurization system and tractor - Google Patents
Oil absorption pressurization system and tractor Download PDFInfo
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- CN218760662U CN218760662U CN202222844776.4U CN202222844776U CN218760662U CN 218760662 U CN218760662 U CN 218760662U CN 202222844776 U CN202222844776 U CN 202222844776U CN 218760662 U CN218760662 U CN 218760662U
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Abstract
The utility model provides an oil absorption turbocharging system and tractor. An oil suction pressurization system comprising: the device comprises an oil suction valve, a fine filter with double filters connected in parallel, a gear pump, an open load sensitive variable pump and a closed variable pump, wherein one end of the gear pump is connected with one end of the fine filter through a pipeline, and the other end of the fine filter is connected with the first end of the oil suction valve, the first end of the open load sensitive variable pump and the first end of the closed variable pump through pipelines respectively. The gear pump provides an oil source for oil absorption of the open type load sensitive variable pump and the closed type variable pump. The fine filtration meets the requirement of large flow of the system for the parallel double filters, and the cleanliness of hydraulic oil entering the open type load sensitive variable pump and the closed type variable pump is ensured. The device is convenient for element arrangement and complete machine arrangement, reduces the requirements of the system on the result and the performance of the variable pump, is convenient for the model selection of the open load sensitive variable pump, and reduces the cost.
Description
Technical Field
The utility model relates to a tractor hydraulic system technical field especially relates to an oil absorption pressure boost system and tractor.
Background
Along with the centralization of land and the mechanization of agriculture, the requirements of farmers on tractors and agricultural implements are constantly changing, and particularly, large-scale multifunctional agricultural implements are required to be used by a high-horsepower tractor. The output flow demand of the tractor which is adapted to the large-scale multifunctional agricultural machinery and tools to the hydraulic multi-way valve is also increased.
At present, a tractor with 500 horsepower or more is not used at home, and the oil suction of a variable displacement pump in a load sensing system used by a tractor with 500 horsepower or less is completed by a self-provided oil replenishing pump.
1) The load sensitive pump with the oil supplementing pump is few in types, most of the load sensitive pumps are hydraulic part manufacturers and are customized products for host manufacturers, the type selection of the load sensitive pump is difficult, and the price is high.
2) The filter used by the load sensitive pump with the oil replenishing pump is limited when the whole machine is arranged.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to prior art not enough, provide an oil absorption pressure boost system and tractor.
The utility model provides an above-mentioned technical problem's technical scheme as follows: an oil suction pressurization system comprising: the oil pump comprises an oil suction valve, a fine filter with double filters connected in parallel, a gear pump, an open load sensitive variable pump and a closed variable pump, wherein one end of the gear pump is connected with one end of the fine filter through a pipeline, and the other end of the fine filter is respectively connected with the first end of the oil suction valve, the first end of the open load sensitive variable pump and the first end of the closed variable pump through pipelines.
Adopt the utility model discloses technical scheme's beneficial effect is: the gear pump provides an oil source for oil absorption of the open type load sensitive variable pump and the closed type variable pump. The fine filtration meets the requirement of large flow of the system for the parallel double filters, and the cleanliness of hydraulic oil entering the open type load sensitive variable pump and the closed type variable pump is ensured. The variable pump is convenient for element arrangement and complete machine arrangement, reduces the requirements of the system on the result and the performance of the variable pump, is convenient for the model selection of the open type load sensitive variable pump, and reduces the cost.
Furthermore, a radiator is arranged on a pipeline between the gear pump and the fine filter.
The beneficial effect of adopting the further technical scheme is that: the radiator provides proper hydraulic oil temperature for the whole system.
Further, still include: and the second end of the oil suction valve is connected with the gear pump through a pipeline, and the third end of the oil suction valve and the fourth end of the oil suction valve are connected with the hydraulic oil tank through pipelines.
The beneficial effect of adopting the further technical scheme is that: the hydraulic oil tank 1 is used for storing hydraulic oil. The oil return of the whole system enters the oil suction end of the pump, so that the displacement of the gear pump is effectively reduced, the appearance of the gear pump is smaller, and the cost is lower.
Furthermore, the second end of the open type load sensitive variable pump, the second end of the closed type variable pump and the third end of the closed type variable pump are connected with the hydraulic oil tank through pipelines.
The beneficial effect of adopting the further technical scheme is that: the open type load sensitive variable pump and the closed type variable pump are convenient to be communicated with the hydraulic oil tank.
Further, the oil suction valve includes: the oil suction valve comprises a first one-way valve, a second one-way valve and an orifice, wherein one end of the first one-way valve is the first end of the oil suction valve, and the other end of the first one-way valve is respectively connected with the second one-way valve and the orifice through pipelines.
Further, the opening pressure of the first check valve and the opening pressure of the second check valve are both 1.7bar, and the diameter of the throttle hole is 13mm.
The beneficial effect of adopting the further technical scheme is that: the oil suction valve always keeps the oil suction of the open type load sensitive variable pump and the closed type variable pump to be positive pressure under the action of two check valves with the pressure of 1.7bar and the throttling hole with the diameter of 13mm, and redundant oil is released to a hydraulic oil tank through the check valves and the throttling hole. The oil suction valve ensures that the pressure at the oil suction ports of the open type load sensitive variable displacement pump and the closed type variable displacement pump is 3.4bar.
Further, the gear pump is connected with the open load sensitive variable pump.
The beneficial effect of adopting the further technical scheme is that: the gear pump and the open type load sensitive variable pump are convenient to drive.
Furthermore, the open type load sensitive variable pump is respectively connected with an actuating mechanism and a multi-way valve through pipelines.
The beneficial effect of adopting the further technical scheme is that: the open type load sensitive variable pump provides a power oil source for an actuating mechanism of the tractor. The multi-way valve is used for controlling the actions of other actuators.
Furthermore, the utility model also provides a tractor, include above-mentioned arbitrary one oil absorption turbocharging system.
Adopt the utility model discloses technical scheme's beneficial effect is: the gear pump provides an oil source for oil absorption of the open type load sensitive variable pump and the closed type variable pump. The fine filtration meets the requirement of large flow of the system for the parallel double filters, and the cleanliness of hydraulic oil entering the open type load sensitive variable pump and the closed type variable pump is ensured. The variable pump is convenient for element arrangement and complete machine arrangement, reduces the requirements of the system on the result and the performance of the variable pump, is convenient for the model selection of the open type load sensitive variable pump, and reduces the cost.
Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is the utility model discloses oil absorption supercharging system's schematic structure diagram that the embodiment provided.
The reference numbers illustrate: 1. a hydraulic oil tank; 2. an oil suction valve; 3. fine filtering; 4. a gear pump; 5. a heat sink; 6. an open load-sensitive variable displacement pump; 7. an actuator; 8. a multi-way valve; 9. closed variable displacement pump.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1, an oil suction pressurization system includes: the oil filter comprises an oil suction valve 2, a fine filter 3 with double filters connected in parallel, a gear pump 4, an open load sensitive variable pump 6 and a closed variable pump 9, wherein one end of the gear pump 4 is connected with one end of the fine filter 3 through a pipeline, and the other end of the fine filter 3 is respectively connected with a first end of the oil suction valve 2, a first end of the open load sensitive variable pump 6 and a first end of the closed variable pump 9 through pipelines.
Adopt the utility model discloses technical scheme's beneficial effect is: the gear pump provides an oil source for oil absorption of the open load-sensitive variable pump and the closed variable pump. The fine filtration is a parallel double filter, so that the requirement of large flow of the system is met, and the cleanliness of hydraulic oil entering the open load sensitive variable pump and the closed variable pump is ensured. The variable pump is convenient for element arrangement and complete machine arrangement, reduces the requirements of the system on the result and the performance of the variable pump, is convenient for the model selection of the open type load sensitive variable pump, and reduces the cost.
As shown in fig. 1, a radiator 5 is further installed on a pipeline between the gear pump 4 and the fine filter 3.
The beneficial effect of adopting the further technical scheme is that: the radiator provides proper hydraulic oil temperature for the whole system.
As shown in fig. 1, further, the method further includes: the second end of the oil suction valve 2 is connected with the gear pump 4 through a pipeline, and the third end of the oil suction valve 2 and the fourth end of the oil suction valve 2 are connected with the hydraulic oil tank 1 through pipelines.
The beneficial effect of adopting the further technical scheme is that: the hydraulic oil tank 1 is used for storing hydraulic oil. The oil return of the whole system enters the oil suction end of the pump, so that the displacement of the gear pump is effectively reduced, the appearance of the gear pump is smaller, and the cost is lower.
As shown in fig. 1, further, the second end of the open load sensitive variable pump 6, the second end of the closed variable pump 9, and the third end of the closed variable pump 9 are all connected to the hydraulic oil tank 1 through pipelines.
The beneficial effect of adopting the further technical scheme is that: the open type load sensitive variable pump and the closed type variable pump are convenient to be communicated with the hydraulic oil tank.
As shown in fig. 1, further, the oil suction valve 2 includes: the oil suction valve comprises a first one-way valve, a second one-way valve and an orifice, wherein one end of the first one-way valve is the first end of the oil suction valve 2, and the other end of the first one-way valve is respectively connected with the second one-way valve and the orifice through pipelines.
As shown in fig. 1, further, the opening pressures of the first check valve and the second check valve are both 1.7bar, and the diameter of the throttle hole is 13mm.
The beneficial effect of adopting the further technical scheme is that: the oil suction valve always keeps the oil suction of the open load sensitive variable pump and the closed variable pump at a positive pressure value under the action of two check valves with the pressure of 1.7bar and a throttling hole with the diameter of 13mm, and redundant oil is relieved to a hydraulic oil tank through the check valves and the throttling hole. The oil suction valve ensures that the pressure at the oil suction ports of the open type load sensitive variable pump and the closed type variable pump is 3.4bar.
As shown in fig. 1, further, the gear pump 4 is connected to the open load sensitive variable pump 6.
The beneficial effect of adopting the further technical scheme is that: the gear pump and the open type load sensitive variable pump are convenient to drive.
As shown in fig. 1, the open load-sensitive variable displacement pump 6 is further connected to an actuator 7 and a multiplex valve 8 through pipes.
The beneficial effect of adopting the further technical scheme is that: the open type load sensitive variable pump provides a power oil source for an actuating mechanism of the tractor. The multi-way valve is used for controlling the actions of other actuators.
The utility model provides an oil absorption charge system can be a novel oil absorption fuel feeding hydraulic system, is strained 3 filtration backs through the essence by 4 fuel feeding of gear pump to the oil return confluence with the multiple unit valve after 5 cooling through the radiator, provides 3.4bar malleation hydraulic oil for the oil absorption S of open load sensitive variable pump 6 (the first end of open load sensitive variable pump) and the oil absorption B of closed variable pump 9 (the first end of closed variable pump) under the effect of oil absorption valve 2. The oil suction valve 2 always keeps the oil suction of the open load sensitive variable pump 6 and the closed variable pump 9 to be positive pressure under the action of two check valves (namely a first check valve and a second check valve) of 1.7bar and an orifice of which the diameter is 13mm, and redundant oil is released to the hydraulic oil tank 1 through the check valves and the orifice. The fine filter 3 is a parallel double filter, so that the requirement of large flow of the system is met, and the cleanliness of hydraulic oil entering the open load sensitive variable pump 6 and the closed variable pump 9 is ensured. The radiator 5 provides the whole system with a suitable hydraulic oil temperature. The oil return of the whole system enters the oil suction end of the pump (gear pump), so that the discharge capacity of the gear pump 4 is effectively reduced, the appearance of the gear pump is smaller, and the cost is lower.
1. The element arrangement is more convenient; 2. the requirements on the result and the performance of the variable pump (the open type load sensitive variable pump) are lower, and the selectable manufacturers are wider; 3. the system cleanliness is high.
Furthermore, the utility model also provides a tractor, include above-mentioned arbitrary one oil absorption turbocharging system.
Adopt the utility model discloses technical scheme's beneficial effect is: the gear pump provides an oil source for oil absorption of the open type load sensitive variable pump and the closed type variable pump. The fine filtration meets the requirement of large flow of the system for the parallel double filters, and the cleanliness of hydraulic oil entering the open type load sensitive variable pump and the closed type variable pump is ensured. The variable pump is convenient for element arrangement and complete machine arrangement, reduces the requirements of the system on the result and the performance of the variable pump, is convenient for the model selection of the open type load sensitive variable pump, and reduces the cost.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (9)
1. An oil suction pressurization system, comprising: the oil filter comprises an oil suction valve (2), a fine filter (3) with double filters connected in parallel, a gear pump (4), an open load sensitive variable pump (6) and a closed variable pump (9), wherein one end of the gear pump (4) is connected with one end of the fine filter (3) through a pipeline, and the other end of the fine filter (3) is connected with a first end of the oil suction valve (2), a first end of the open load sensitive variable pump (6) and a first end of the closed variable pump (9) through pipelines respectively.
2. An oil suction and pressurization system as claimed in claim 1, characterized in that a radiator (5) is installed on the pipeline between the gear pump (4) and the fine filter (3).
3. An oil suction supercharging system according to claim 1 further comprising: the second end of the oil suction valve (2) is connected with the gear pump (4) through a pipeline, and the third end of the oil suction valve (2) and the fourth end of the oil suction valve (2) are connected with the hydraulic oil tank (1) through pipelines.
4. An oil suction and pressurization system as claimed in claim 3, characterized in that the second end of the open load-sensitive variable pump (6), the second end of the closed variable pump (9) and the third end of the closed variable pump (9) are all connected with the hydraulic oil tank (1) through pipelines.
5. An oil suction pressurisation system according to claim 1, characterised in that the oil suction valve (2) comprises: the oil suction valve comprises a first one-way valve, a second one-way valve and an orifice, wherein one end of the first one-way valve is the first end of the oil suction valve (2), and the other end of the first one-way valve is respectively connected with the second one-way valve and the orifice through pipelines.
6. An oil suction supercharging system according to claim 5, wherein the opening pressures of said first check valve and said second check valve are each 1.7bar, and the diameter of said orifice is 13mm.
7. An oil suction and pressurization system according to claim 1, characterized in that the gear pump (4) is connected with the open load-sensitive variable pump (6).
8. An oil suction and pressurization system as claimed in claim 1, characterized in that the open load-sensitive variable displacement pump (6) is connected with an actuator (7) and a multi-way valve (8) through pipelines respectively.
9. A tractor comprising an oil suction and pressurization system as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222844776.4U CN218760662U (en) | 2022-10-27 | 2022-10-27 | Oil absorption pressurization system and tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222844776.4U CN218760662U (en) | 2022-10-27 | 2022-10-27 | Oil absorption pressurization system and tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218760662U true CN218760662U (en) | 2023-03-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222844776.4U Active CN218760662U (en) | 2022-10-27 | 2022-10-27 | Oil absorption pressurization system and tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218760662U (en) |
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2022
- 2022-10-27 CN CN202222844776.4U patent/CN218760662U/en active Active
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