CN214092563U - Large-traffic high stability oil feeding system - Google Patents
Large-traffic high stability oil feeding system Download PDFInfo
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- CN214092563U CN214092563U CN202023337007.2U CN202023337007U CN214092563U CN 214092563 U CN214092563 U CN 214092563U CN 202023337007 U CN202023337007 U CN 202023337007U CN 214092563 U CN214092563 U CN 214092563U
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Abstract
The utility model provides a large-flow high-stability oil supply system, which relates to the technical field of hydraulic oil supply systems and comprises an oil tank and a control valve group, wherein a low-pressure screw pump group and a plurality of groups of high-pressure pump groups connected in parallel are connected between the oil tank and the control valve group; the control valve group is provided with a high-pressure oil supply connector P1, a low-pressure oil supply connector P2, a control oil supply connector P3, an oil return connector T and an oil drainage connector L, and the oil return connector T and the oil drainage connector L are both communicated with an oil tank; the oil inlets of the low-pressure screw pump sets are communicated with the oil tank, and the oil outlets are respectively communicated with the oil inlets of the multiple groups of high-pressure pump sets and a low-pressure oil supply interface P2 of the control valve set; oil outlets of the multiple groups of high-pressure pump sets are respectively communicated with a high-pressure oil supply connector P1 and a control oil supply connector P3, and oil return ports are respectively communicated with an oil tank. The utility model discloses utilize low pressure screw pump group to be multiunit high pressure pump group fuel feeding, satisfy the output of high pressure pump group to the low undulant demand of flow of control valve group, and guarantee the job stabilization nature and the control accuracy of control valve group.
Description
Technical Field
The utility model relates to a hydraulic pressure oil feeding system technical field especially relates to a large-traffic high stability oil feeding system.
Background
In large-scale metallurgy systems and rolling mill systems, a hydraulic control system is required to control the work of an actuating mechanism, and in order to ensure the product quality, the large-scale metallurgy systems and rolling mill systems have extremely high requirements on the stability and the control precision of the hydraulic control system. When the existing hydraulic control system is used, a pump set in the oil supply system directly sucks oil from an oil tank and sends the oil to an oil port of the control valve group, and hydraulic oil is provided for the control valve group. However, the pump set directly sucks oil from the oil tank to generate larger working pressure and flow fluctuation, so that the stability and the precision of the control valve set for controlling the operation of the actuating mechanism are easily influenced, and the product quality is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a large-traffic high stability oil feeding system, it can satisfy the output of high-pressure pump and need the low undulant demand of flow to the valve unit, guarantees the job stabilization nature and the control accuracy of valve unit.
The above technical purpose of the present invention can be achieved by the following technical solutions:
a high-flow high-stability oil supply system comprises an oil tank and a control valve group, wherein a low-pressure screw pump group and a plurality of groups of high-pressure pump groups which have the same structure and are connected in parallel are connected between the oil tank and the control valve group;
the control valve group is provided with a high-pressure oil supply connector P1, a low-pressure oil supply connector P2, a control oil supply connector P3, an oil return connector T and an oil drainage connector L, and the oil return connector T and the oil drainage connector L are both communicated with an oil tank;
the oil inlets of the low-pressure screw pump sets are communicated with an oil tank, and the oil outlets of the low-pressure screw pump sets are respectively communicated with the oil inlets of the multiple groups of high-pressure pump sets and a low-pressure oil supply interface P2 of the control valve group;
oil outlets of the high-pressure pump sets are communicated with a high-pressure oil supply connector P1 and a control oil supply connector P3 of the control valve set respectively, and oil return ports of the high-pressure pump sets are communicated with an oil tank.
By adopting the technical scheme, after being sucked by the low-pressure screw pump unit, the hydraulic oil in the oil tank is respectively sent to the low-pressure oil supply interface P2 of the control valve group and the multiple groups of high-pressure pump units to provide the low-pressure hydraulic oil for the control valve group, and the multiple groups of high-pressure pump units output the high pressure of the low-pressure hydraulic oil sent by the low-pressure screw pump unit to the high-pressure oil supply interface P1 and the control oil supply interface P3 of the control valve group to provide the high-pressure hydraulic oil for the control valve group. Compared with the situation that a plurality of groups of high-pressure pump sets directly suck hydraulic oil from an oil tank, the low-pressure screw pump sets input stable low-pressure hydraulic oil into the plurality of groups of high-pressure pump sets, the high-pressure pump sets work more stably, and the flow of the high-pressure hydraulic oil sent to the control valve group is low in fluctuation and more stable, so that the requirement of the control valve group for low fluctuation of the flow is met, and the working stability and the control precision of the control valve group are guaranteed. The hydraulic oil of the control valve group flows back to the oil tank from the oil return port T, and a small amount of hydraulic oil leaked between the valve sleeve and the valve core also flows back to the oil tank from the oil drainage port T, so that the hydraulic oil is recycled.
Furthermore, an oil outlet of the low-pressure screw pump group is connected with a first electromagnetic overflow valve, an oil return filter is connected between the oil outlet of the first electromagnetic overflow valve and an oil tank, an oil return interface T of the control valve group is communicated with an oil inlet of the oil return filter, and a check valve is connected between the oil return interface T and the oil inlet of the oil return filter.
By adopting the technical scheme, stable low-pressure hydraulic oil output by the low-pressure screw pump group can have three trends, namely a low-pressure oil supply interface P2 reaching the control valve group, a high-pressure oil supply interface P1 reaching oil inlets of a plurality of high-pressure pump groups and being sent to the control valve group by the high-pressure pump group and a control oil supply interface P3, and a first electromagnetic overflow valve which is filtered by the oil return filter and returns to the oil tank. Different oil ways can be selected according to different working requirements, the first electromagnetic overflow valve can also play a role in pressure relief, and the stability of hydraulic oil is ensured when the low-pressure hydraulic oil output by the low-pressure screw pump unit is fed into the low-pressure oil supply port P2 of the control valve group and the oil inlets of the plurality of high-pressure pump units. The oil return filter filters the hydraulic oil returned by the oil return interface T of the control valve group and the hydraulic oil returned to the oil tank by the first electromagnetic overflow valve, and the cleanliness and the use effect of the hydraulic oil are ensured while the hydraulic oil is recycled.
Furthermore, an oil outlet of the low-pressure screw pump unit is connected with an oil inlet filter, an oil outlet of the oil inlet filter is respectively communicated with an oil inlet of the first electromagnetic overflow valve, a low-pressure oil supply interface P2 of the control valve group and oil inlets of the plurality of high-pressure pump units, and the oil inlet filter is connected with a first pressure controller.
By adopting the technical scheme, the low-pressure hydraulic oil output by the low-pressure screw pump group is filtered by the oil inlet filter and then is sent into the first electromagnetic overflow valve, the low-pressure oil supply interface P2 of the control valve group and the plurality of high-pressure pump groups, so that the cleanliness of the hydraulic oil is further ensured. Wherein, first pressure controller is connected to the oil feed filter, and first pressure controller carries out pressure detection to the low pressure hydraulic oil of oil feed filter output, guarantees that the pressure of low pressure hydraulic oil is in the requirement scope, and guarantees the security.
Further, each high-pressure pump group comprises a high-pressure pump, a high-pressure filter and a two-way cartridge valve; an oil inlet of the high-pressure pump is communicated with an oil outlet of the oil inlet filter, the high-pressure filter is connected between the oil outlet of the high-pressure pump and an oil inlet of the two-way cartridge valve, and an oil outlet of the two-way cartridge valve is communicated with a high-pressure oil supply interface P1 and a control oil supply interface P3 of the control valve group.
By adopting the technical scheme, the low-pressure hydraulic oil input into the high-pressure pump groups by the low-pressure screw pump groups respectively enters the corresponding high-pressure pumps, the high-pressure hydraulic oil is output by the high-pressure pumps through operation, the high-pressure hydraulic oil is filtered by the high-pressure filter to ensure the purity and is output in one direction by the two-way cartridge valves, the high-pressure hydraulic oil of the high-pressure pump groups is output and converged by the corresponding two-way cartridge valves and then is input to the high-pressure oil supply interface P1 and the control oil supply interface P3 on the control valve group in a shunting manner, the stable input of the high-pressure hydraulic oil is realized, and the use requirements of the control valve group are met.
Furthermore, a pressure reducing valve is communicated between a control oil supply port P3 of the control valve group and oil outlets of the multiple groups of high-pressure pump groups, an oil drainage port of the pressure reducing valve is communicated with an oil tank, and the pressure reducing valve is connected with a pressure measuring joint.
By adopting the technical scheme, the pressure requirements of the high-pressure oil supply port P1 and the control oil supply port P3 in the control valve group on the hydraulic oil are different, so that the pressure reducing valve is communicated between the control oil supply port P3 and oil outlets of a plurality of groups of high-pressure pump groups, the pressure reduction of the high-pressure hydraulic oil is realized by the pressure reducing valve, and the pressure of the hydraulic oil input to the control oil supply port P3 meets the use requirements. The oil drain port of the pressure reducing valve is communicated with the oil tank, and hydraulic oil can be recycled; and the pressure measuring joint connected with the pressure reducing valve can detect the pressure of the hydraulic oil so as to adjust the pressure reducing valve and ensure that the pressure of the hydraulic oil input to the control oil supply port P3 is in a qualified range.
Further, the oil outlet of the high-pressure filter is also connected with a second electromagnetic overflow valve and a second pressure controller respectively.
By adopting the technical scheme, the oil outlet of the high-pressure filter is respectively connected with the second electromagnetic overflow valve and the second pressure controller, and the second electromagnetic overflow valve is used for setting the safety pressure so as to avoid the overhigh pressure of the high-pressure hydraulic oil output by the high-pressure pump; and the second pressure controller is used for pressure detection and is matched with the second electromagnetic overflow valve to ensure the safety.
Furthermore, a cooler is connected between an oil inlet of the oil return filter and an oil outlet of the first electromagnetic overflow valve, the cooler is connected with the water filter and the electromagnetic water valve, and an oil return interface T of the control valve group is connected with the cooler.
Through adopting above-mentioned technical scheme, connect the cooler between oil return filter and first electromagnetism overflow valve, cool off the hydraulic oil of the oil return interface T backward flow of first electromagnetism overflow valve and valve unit. The cooler and the oil return filter are matched to realize the circulating filtration and cooling of the hydraulic oil, and the purity and the safety of the hydraulic oil entering the low-pressure screw pump set are guaranteed. The water circulation cooling of the cooler is controlled by the electromagnetic water valve and the water filter, the structure is simple, the control is convenient, the cost is low, and the cooling effect is obvious.
Further, a heater is arranged in the oil tank, the oil tank is connected with a temperature controller, and the temperature controller is in communication control connection with the heater and the electromagnetic water valve.
By adopting the technical scheme, the temperature of the hydraulic oil in the oil tank is monitored by using the temperature controller, and when the temperature of the hydraulic oil is too low, the temperature controller is communicated with the heater to control the heater to work to heat the hydraulic oil in the oil tank; when the temperature of the hydraulic oil is too high, the temperature controller communicates to control the electromagnetic water valve to be opened, and the water filter and the cooler work to cool the returned hydraulic oil. Therefore, under the automatic control of the temperature controller, the temperature of the hydraulic oil in the oil tank is kept in a constant range, the fluidity of the hydraulic oil is ensured, and the safety of the hydraulic oil when the hydraulic oil is input into the low-pressure screw pump set is also ensured.
To sum up, the utility model discloses following beneficial effect has:
1. the low-pressure screw pump set and the high-pressure pump set are arranged between the oil tank and the control valve set, and the low-pressure screw pump set is used for providing low-fluctuation and stable low-pressure hydraulic oil for a low-pressure oil supply interface P2 of the control valve set and oil inlets of a plurality of groups of high-pressure pump sets, so that the working stability and the control precision of the control valve set are ensured;
2. through connect first electromagnetism valves, cooler and return oil filter between the oil-out of low pressure screw pump package and oil tank, when the control valve group need not work, can carry out circulative cooling and filtration to the hydraulic oil in the oil tank.
Drawings
Fig. 1 is a schematic diagram of a high flow rate and high stability oil supply system.
In the figure, 1, a fuel tank; 11. a heater; 12. a temperature controller; 13. an air cleaner; 14. a liquid level controller; 2. a low-pressure screw pump set; 21. an oil inlet filter; 22. a first pressure controller; 3. a first electromagnetic spill valve; 31. a cooler; 32. a water filter; 33. an electromagnetic water valve; 34. an oil return filter; 4. a high pressure pump package; 41. a high pressure pump; 42. a high pressure filter; 43. a two-way cartridge valve; 44. a second electromagnetic spill valve; 45. a second pressure controller; 46. a one-way valve; 5. a control valve group; 51. a check valve; 52. a pressure reducing valve; 53. and a pressure measuring joint.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
A large-flow high-stability oil supply system comprises an oil tank 1 and a control valve group 5, wherein a low-pressure screw pump set 2 and three groups of high-pressure pump sets 4 which are identical in structure and connected in parallel are connected between the oil tank 1 and the control valve group 5, hydraulic oil in the oil tank 1 is fed into the control valve group 5 in a low-pressure mode or a high-pressure mode through the low-pressure screw pump set 2 and the three groups of high-pressure pump sets 4, and the control valve group 5 is guaranteed to drive an actuating mechanism to work stably.
As shown in fig. 1, a heater 11, a temperature controller 12, an air cleaner 13, and a liquid level controller 14 are provided in an oil tank 1; the heater 11 is in communication control connection with the temperature controller 12, and the temperature controller 12 monitors the temperature of the hydraulic oil in the oil tank 1 in real time so as to control the heater 11 to work and heat the hydraulic oil; the liquid level controller 14 monitors the allowance of the hydraulic oil in the oil tank 1, so that the hydraulic oil can be supplemented in time; the air filter 13 filters impurities in the air when the air enters the oil tank 1, so that the cleanliness of hydraulic oil is ensured.
As shown in fig. 1, the control valve group 5 is provided with a high-pressure oil supply port P1, a low-pressure oil supply port P2, a control oil supply port P3, an oil return port T, and an oil drain port L, the oil drain port L is directly communicated with the oil tank 1, and a small amount of hydraulic oil leaked between the valve sleeve and the valve core in the control valve group 5 directly flows back into the oil tank 1 from the oil discharge port L.
As shown in fig. 1, each of the three groups of high-pressure pump sets 4 includes a high-pressure pump 41, a high-pressure filter 42 and a two-way cartridge valve 43, the high-pressure filter 42 is connected between an oil outlet of the high-pressure pump and an oil inlet of the two-way cartridge valve 43, an oil return port of the high-pressure pump 41 is directly connected with the oil tank 1, oil outlets of the two-way cartridge valves 43 in the three groups of high-pressure pump sets 4 are combined in parallel and communicated with a high-pressure oil supply interface P1 and a control oil supply interface P3 of the control valve set 5 respectively after being combined.
As shown in fig. 1, an oil inlet of a low-pressure screw pump set 2 is directly communicated with an oil tank 1, an oil outlet of the low-pressure screw pump set is connected with an oil inlet filter 21, and the oil outlet of the oil inlet filter 21 is divided into three branches. Firstly, the oil outlet of the oil inlet filter 21 is directly communicated with a low-pressure oil supply interface P2 of the control valve group 5, so as to provide low-pressure hydraulic oil for the control valve group 5. Secondly, the oil outlet of the oil inlet filter 21 is respectively communicated with the oil inlets of the high-pressure pumps 41 in the three groups of high-pressure pump units 4, that is, the low-pressure hydraulic oil output by the low-pressure screw pump unit 2 is stably supplied to the three high-pressure pumps 41, and the high-pressure hydraulic oil is output by the three high-pressure pumps 41 and is respectively supplied to the high-pressure oil supply port P1 and the control oil supply port P3 of the control valve group 5. Thirdly, an oil outlet of the oil inlet filter 21 is connected with a first electromagnetic overflow valve 3, a cooler 31 and an oil return filter 34 are connected between the oil outlet of the first electromagnetic overflow valve 3 and the oil tank 1, the cooler 31 is connected between the oil return filter 34 and the first electromagnetic overflow valve 3, and hydraulic oil in the oil tank 1 can be subjected to circulating cooling and filtering by utilizing the loop.
As shown in fig. 1, a water filter 32 is connected to the cooler 31, and an electromagnetic water valve 33 that is in communication control connection with the temperature controller 12 is connected between the water filter 32 and the cooler 31. When the temperature controller 12 monitors that the temperature of the hydraulic oil in the oil tank 1 is too high, the electromagnetic water valve 33 is controlled to be opened, and the water filter 32 and the cooler 31 work cooperatively to cool the hydraulic oil which flows back into the oil tank 1. The oil return port T of the control valve group 5 is directly connected to the cooler 31, and a check valve 51 is connected between the oil return port T and the cooler.
As shown in fig. 1, the oil outlet of the oil inlet filter 21 is further connected with a first pressure controller 22, the first pressure controller 22 is connected with a first pressure gauge, and the low-pressure hydraulic oil is branched to three branches after being detected by the first pressure controller 22. The first pressure controller 22 can set a high pressure alarm and a low pressure alarm, and the first pressure controller 22 is used for detecting the pressure of the low-pressure hydraulic oil output by the low-pressure screw pump group 2 and the oil inlet filter 21, so that the pressure of the low-pressure hydraulic oil is stable and within a required range.
As shown in fig. 1, the oil outlet of the high-pressure filter 42 is connected with a second electromagnetic spill valve 44 and a second pressure controller 45, and the second pressure controller 45 is connected with a second pressure gauge. The second electromagnetic overflow valve 44 is used for setting safety pressure to avoid overhigh pressure of the high-pressure hydraulic oil output by the high-pressure pump 41; and the second pressure controller 45 is used for pressure detection, can set a high pressure alarm and a low pressure alarm, and is matched with the second electromagnetic overflow valve 44 to ensure the safety.
As shown in fig. 1, a pressure reducing valve 52 is provided between the control oil supply port P3 of the control valve block 5 and the merged oil outlet of the three two-way cartridge valves 43, and the pressure of the hydraulic oil entering the control oil supply port P3 is adjusted by the pressure reducing valve 52. The oil drain port of the pressure reducing valve 52 is communicated with the oil tank 1, and hydraulic oil can be recycled; and the pressure reducing valve 52 is connected with a pressure measuring joint 53, and the pressure of the hydraulic oil can be detected by using the pressure measuring joint 53 so as to adjust the pressure reducing valve 52 and ensure that the pressure of the hydraulic oil input to the control oil supply port P3 is within a qualified range.
As shown in fig. 1, a check valve 46 is connected between the oil inlet branch and the oil tank 1 after the three parallel high-pressure pump sets 4 are connected in parallel, so that when the low-pressure screw pump set 2 fails or the pressure of the hydraulic oil supplied to the high-pressure pump set 4 is insufficient, the three high-pressure pump sets 4 directly suck oil from the oil tank 1 through the check valve 46.
The utility model discloses a theory of operation and application method:
hydraulic oil in the oil tank 1 enters from an oil inlet of the low-pressure screw pump set 2, is output to the oil inlet filter 21 through operation and low pressure of the low-pressure screw pump set 2, and is output in two ways. Firstly, the oil outlet of the oil inlet filter 21 is directly input into a low-pressure oil supply interface P2 of the control valve group 5 to provide low-pressure hydraulic oil for the control valve group 5; and the second high-pressure hydraulic oil is directly input into oil inlets of high-pressure pumps 41 in the three high-pressure pump groups 4 from oil outlets of the oil inlet filter 21, is respectively operated by the three high-pressure pumps 41 to output high-pressure hydraulic oil, is respectively filtered by the high-pressure filters 42, flows out of the two-way cartridge valve 43, is converged at oil outlets of the two-way cartridge valve 43, then is shunted to a high-pressure oil supply connector P1 and a control oil supply connector P3 of the control valve group 5, enters the high-pressure oil supply connector P1 as the high-pressure hydraulic oil, and enters the control oil supply connector P3 as the high-pressure hydraulic oil decompressed by the decompression valve 52. The hydraulic oil in the control valve group 5 which flows back from the oil return port T is filtered and recovered to the oil tank 1 through the oil return filter 34, and the hydraulic oil leaked from the oil drain port L directly flows back to the oil tank 1.
When the temperature controller 12 detects that the temperature of the hydraulic oil in the oil tank 1 is high or the control valve group 5 does not need to work, the first electromagnetic overflow valve 3 is powered on to work, the electromagnetic water valve 33 is opened, the water filter 32 works, and the hydraulic oil in the oil tank 1 is circularly cooled and filtered from the low-pressure screw pump group 2, the oil inlet filter 21, the first electromagnetic overflow valve 3, the cooler 31 and the oil return filter 34 and returns to the oil tank 1. When the temperature controller 12 detects that the temperature of the hydraulic oil in the oil tank 1 is too low, the heater 11 is controlled to operate to heat the hydraulic oil.
While the foregoing description shows and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.
Claims (8)
1. The utility model provides a large-traffic high stability oil feeding system which characterized in that: the device comprises an oil tank (1) and a control valve group (5), wherein a low-pressure screw pump group (2) and a plurality of groups of high-pressure pump groups (4) which are identical in structure and are connected in parallel are connected between the oil tank (1) and the control valve group (5);
the control valve group (5) is provided with a high-pressure oil supply connector P1, a low-pressure oil supply connector P2, a control oil supply connector P3, an oil return connector T and an oil drainage connector L, and the oil return connector T and the oil drainage connector L are both communicated with the oil tank (1);
the oil inlet of the low-pressure screw pump set (2) is communicated with the oil tank (1), and the oil outlet of the low-pressure screw pump set (2) is respectively communicated with the oil inlets of a plurality of groups of high-pressure pump sets (4) and a low-pressure oil supply interface P2 of the control valve set (5);
oil outlets of the high-pressure pump sets (4) are communicated with a high-pressure oil supply interface P1 and a control oil supply interface P3 of the control valve set (5), and oil return ports of the high-pressure pump sets (4) are communicated with the oil tank (1).
2. The high-flow high-stability oil supply system according to claim 1, characterized in that: the oil outlet of the low-pressure screw pump set (2) is connected with a first electromagnetic overflow valve (3), an oil return filter (34) is connected between the oil outlet of the first electromagnetic overflow valve (3) and the oil tank (1), an oil return interface T of the control valve set (5) is communicated with the oil inlet of the oil return filter (34), and a check valve (51) is connected between the oil return interface T and the oil inlet of the oil return filter (34).
3. The high-flow high-stability oil supply system according to claim 2, characterized in that: the oil outlet of the low-pressure screw pump group (2) is connected with an oil inlet filter (21), the oil outlet of the oil inlet filter (21) is respectively communicated with the oil inlet of the first electromagnetic overflow valve (3), the low-pressure oil supply interface P2 of the control valve group (5) and the oil inlets of the plurality of high-pressure pump groups (4), and the oil inlet filter (21) is connected with a first pressure controller (22).
4. The high-flow high-stability oil supply system according to claim 3, characterized in that: each high-pressure pump group (4) comprises a high-pressure pump (41), a high-pressure filter (42) and a two-way cartridge valve (43); an oil inlet of the high-pressure pump (41) is communicated with an oil outlet of the oil inlet filter (21), the high-pressure filter (42) is connected between the oil outlet of the high-pressure pump (41) and an oil inlet of the two-way cartridge valve (43), and an oil outlet of the two-way cartridge valve (43) is communicated with a high-pressure oil supply interface P1 and a control oil supply interface P3 of the control valve group (5).
5. The high-flow high-stability oil supply system according to claim 4, characterized in that: a pressure reducing valve (52) is communicated between a control oil supply interface P3 of the control valve group (5) and oil outlets of the multiple groups of high-pressure pump groups (4), an oil drainage port of the pressure reducing valve (52) is communicated with the oil tank (1), and the pressure reducing valve (52) is connected with a pressure measuring connector (53).
6. The high-flow high-stability oil supply system according to claim 4, characterized in that: the oil outlet of the high-pressure filter (42) is also connected with a second electromagnetic overflow valve (44) and a second pressure controller (45) respectively.
7. The high-flow high-stability oil supply system according to claim 2, characterized in that: a cooler (31) is connected between an oil inlet of the oil return filter (34) and an oil outlet of the first electromagnetic overflow valve (3), the cooler (31) is connected with a water filter (32) and an electromagnetic water valve (33), and an oil return interface T of the control valve group (5) is connected with the cooler (31).
8. The high-flow high-stability oil supply system according to claim 7, characterized in that: be equipped with heater (11) in oil tank (1), just oil tank (1) is connected with temperature controller (12), temperature controller (12) and heater (11) and electromagnetism water valve (33) communication control are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023337007.2U CN214092563U (en) | 2020-12-30 | 2020-12-30 | Large-traffic high stability oil feeding system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023337007.2U CN214092563U (en) | 2020-12-30 | 2020-12-30 | Large-traffic high stability oil feeding system |
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| CN214092563U true CN214092563U (en) | 2021-08-31 |
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| CN202023337007.2U Active CN214092563U (en) | 2020-12-30 | 2020-12-30 | Large-traffic high stability oil feeding system |
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