CN212429700U - Lubricating oil hydraulic system for tracked vehicle - Google Patents
Lubricating oil hydraulic system for tracked vehicle Download PDFInfo
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- CN212429700U CN212429700U CN202021085456.XU CN202021085456U CN212429700U CN 212429700 U CN212429700 U CN 212429700U CN 202021085456 U CN202021085456 U CN 202021085456U CN 212429700 U CN212429700 U CN 212429700U
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Abstract
The invention aims to provide a lubricating oil hydraulic system suitable for a crawler. In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a lubricating oil hydraulic system for tracked vehicle, includes pressure tank, is connected with first oil circuit between pressure tank and air pump, is connected with the second oil circuit between pressure tank and oil bath, is connected with the third oil circuit between pressure tank and speed change valve, be equipped with back oil pump on the second oil circuit, be equipped with the operation pump on the third oil circuit, be connected with the fourth oil circuit between third oil circuit and the lubricated oil circuit of speed change system, the lubricated oil circuit of speed change system is connected with the oil bath through open oil circuit, be equipped with the air-vent valve on the third oil circuit, still be equipped with the fifth oil circuit between pressure tank and oil bath, fifth oil circuit and second oil circuit are independent of each other, and are equipped with the air pump constant pressure valve on the fifth oil circuit. The utility model discloses hydraulic system is used in on synthesizing the transmission case, and lubricated effect is better, and each homoenergetic is lubricated to target in place, and can share with control circuit and hydraulic transmission oil circuit.
Description
Technical Field
The utility model relates to a lubricating oil hydraulic system for tracked vehicle.
Background
The transmission system of the old crawler is manually shifted, a special lubricating system is not needed, and the problems of difficult clutch shifting operation, easy flameout of an engine and the like exist. In order to facilitate gear shifting, the conventional crawler adopts hydraulic automatic gear shifting, and a lubricating oil hydraulic system matched with the crawler needs to be designed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a lubricating oil hydraulic system suitable for tracked vehicle.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a tracked vehicle lubricating oil hydraulic system, includes pressure tank, is connected with first oil circuit between pressure tank and air pump, is connected with the second oil circuit between pressure tank and oil bath, is connected with the third oil circuit between pressure tank and variable speed valve, be equipped with back oil pump on the second oil circuit, be equipped with the operating pump on the third oil circuit, be connected with the fourth oil circuit between third oil circuit and the lubricated oil circuit of variable speed system, the lubricated oil circuit of variable speed system is connected with the oil bath through open oil circuit, be equipped with the air-vent valve on the third oil circuit, still be equipped with the fifth oil circuit between pressure tank and oil bath, fifth oil circuit and second oil circuit are independent of each other, and are equipped with the air pump constant pressure valve on the fifth oil circuit.
The utility model discloses a hydraulic system is used in on synthesizing the transmission case, and the speed change valve reaches the target position with the lubricated oil circuit homoenergetic lubrication of speed change system, and can share with control oil circuit and hydraulic transmission oil circuit. The oil return pump is used for guiding lubricating oil in the oil pool into the pressure oil tank; operating the pump to lead out the lubricating oil in the pressure oil tank; the air pump is used for pumping high-pressure air into the pressure oil tank so as to maintain positive pressure in the pressure oil tank, and the pressure oil tank is convenient for supplying oil to each lubricating point; when the pressure in the pressure oil tank is too high to exceed the set value of the constant pressure valve of the air pump, the pressure is released to introduce part of the lubricating oil into the oil pool. In the hydraulic system, the oil pool is an oil cavity which discharges pressure oil to no pressure.
Preferably, a hydraulic torque converter is arranged on the fourth oil path, and the fourth oil path is connected with the third oil path at the downstream of the pressure regulating valve, and is far away from the speed change system lubricating oil path. Among them, the torque converter is a member that increases torque in the entire transmission. Arranging a hydraulic torque converter in the gearbox on a fourth oil path, and ensuring enough hydraulic pressure through a pressure regulating valve so as to ensure the normal operation of the hydraulic torque converter; the hydraulic torque converter does not need to be additionally provided with power, so that the cost is reduced, and other oil ways and devices are convenient to arrange.
Preferably, a sixth oil path is arranged between the fourth oil path and the pressure oil tank, and a constant pressure valve of the torque converter is arranged on the sixth oil path. When the pressure of the liquid flowing to the torque converter through the fourth oil path is higher than a set value, the lubricating constant pressure valve works to shunt the liquid in the fourth oil path so as to reduce the hydraulic pressure in the fourth oil path.
Preferably, a seventh oil path is arranged between the fourth oil path and the pressure oil tank, one end of the seventh oil path is connected with a part of the fourth oil path, which is located between the hydraulic torque converter and the lubricating oil path of the speed change system, the other end of the seventh oil path is connected with the pressure oil tank, and a lubricating constant pressure valve is arranged on the seventh oil path. When the pressure of the liquid flowing to the lubricating oil path of the speed change system from the fourth oil path is higher than a set value, the lubricating constant pressure valve works to shunt the liquid in the fourth oil path so as to reduce the hydraulic pressure of the fourth oil path.
Preferably, a radiator is provided on the fourth oil passage, and the radiator is located downstream of the torque converter. The radiator is used for going out the utility model discloses the heat conduction of system avoids the system temperature too high. The hydraulic torque converter is the biggest heating portion of system, and the radiator is located hydraulic torque converter low reaches department, can cool off the high temperature fluid that comes out from hydraulic torque converter, and the cooling effect is higher.
Preferably, the air pump, the scavenge pump and the operating pump are coaxially arranged and driven synchronously. The arrangement reduces the driving sources, realizes centralized driving and reduces the number of transmission chains.
Preferably, the second oil path is provided with a first filter and a second filter, the first filter is located upstream of the scavenge pump, the second filter is located downstream of the scavenge pump, and the filtration level of the first filter is higher than that of the second filter. The arrangement avoids the blockage of the oil return pump, prolongs the service life of the oil return pump, and reduces particles in the lubricating oil pumped out of the pressure oil tank. Wherein, first filter is the oil absorption filter, and the second filter is the oil return filter. The first filter is used for filtering larger impurities, and meanwhile, the oil absorption resistance is smaller; the second filter is used for filtering fine impurities after the oil return pump.
Preferably, a third filter is provided on the third oil passage, and the filtration level of the third filter is higher than the filtration levels of the first filter and the second filter. The lubricating oil sent to the speed change valve is filtered by a filter with a higher filtering level so as to avoid the speed change valve from being stuck.
Preferably, the pressure tank is lubricated with the rest of the system. Other parts of the system, including the transmission part, i.e., various rotating parts, can be lubricated by lubricating oil in the pressure oil tank in various ways.
The utility model discloses a hydraulic system is used in on synthesizing the transmission case, and lubricated effect is better, and each homoenergetic is lubricated to target in place, and can share with control circuit and hydraulic transmission oil circuit.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The invention will be further described with reference to the drawings and the specific embodiments.
As shown in fig. 1, the utility model discloses a lubricating oil hydraulic system for tracked vehicle, including pressure fuel tank 1, be connected with first oil circuit 11 between pressure fuel tank 1 and air pump 41, be connected with second oil circuit 12 between pressure fuel tank 1 and oil bath 2, be connected with third oil circuit 13 between pressure fuel tank 1 and speed change valve 3, be equipped with oil return pump 42 on the second oil circuit 12, be equipped with operating pump 43 on the third oil circuit 13, be connected with fourth oil circuit 14 between third oil circuit 13 and the lubricating oil circuit 5 of speed change system, lubricating oil circuit 5 of speed change system is connected with oil bath 2 through open oil circuit, be equipped with air-vent valve 44 on the third oil circuit 13, still be equipped with fifth oil circuit 15 between pressure fuel tank 1 and oil bath 2, be equipped with constant pressure valve 45 on the fifth oil circuit 15, fifth oil circuit 15 and second oil circuit 12 are independent each other. Wherein the air pump 41, the scavenge pump 42 and the operating pump 43 are coaxially arranged and synchronously driven.
A torque converter 46 is provided in the fourth oil passage 14, and the fourth oil passage 14 is connected to the third oil passage 13 downstream of the pressure-regulating valve 44, away from the transmission-system lubricating oil passage 5. A sixth oil passage 16 is provided between the fourth oil passage 14 and the pressure oil tank 1, and a torque converter constant pressure valve 47 is provided on the sixth oil passage 16.
A radiator 49 is provided on the fourth oil passage 14, and the radiator 49 is located downstream of the torque converter 46. A seventh oil path 17 is provided between the fourth oil path 14 and the pressure oil tank 1, one end of the seventh oil path 17 is connected to a portion of the fourth oil path 14 located between the radiator 49 and the transmission system lubricating oil path 5, the other end of the seventh oil path 17 is connected to the pressure oil tank 1, and a lubricating constant pressure valve 48 is provided on the seventh oil path 17.
A first filter 61 and a second filter 62 are provided in the second oil passage 12, the first filter 61 being located upstream of the scavenge pump 42, and the second filter 62 being located downstream of the scavenge pump. The third oil passage 13 is provided with a third filter 63, and the third filter 63 is located upstream of the shift valve 3. The first filter 61 is an oil absorption filter, the second filter 62 is an oil return filter, and the third filter 63 is a high-precision control filter. The filtration level of the first filter 61 is higher than that of the second filter 62, and the filtration level of the third filter 63 is higher than that of the first filter 61 and the second filter 62.
The pressure tank 1 is also used for lubrication with other parts 9 of the system via other existing oil channels.
The utility model discloses a hydraulic system is used in on synthesizing the transmission case, and lubricated effect is better, and each homoenergetic is lubricated to target in place, and can share with control circuit and hydraulic transmission oil circuit.
Claims (9)
1. The utility model provides a lubricating oil hydraulic system for tracked vehicle, its characterized in that includes pressure tank, is connected with first oil circuit between pressure tank and air pump, is connected with the second oil circuit between pressure tank and oil bath, is connected with the third oil circuit between pressure tank and speed change valve, be equipped with the scavenge pump on the second oil circuit, be equipped with the operation pump on the third oil circuit, be connected with the fourth oil circuit between third oil circuit and the lubricated oil circuit of speed change system, the lubricated oil circuit of speed change system is connected with the oil bath through open oil circuit, be equipped with the air-vent valve on the third oil circuit, still be equipped with the fifth oil circuit between pressure tank and oil bath, fifth oil circuit and second oil circuit are independent of each other, and are equipped with the air pump constant pressure valve on the fifth oil circuit.
2. The lube oil hydraulic system for a tracked vehicle of claim 1, wherein a torque converter is provided in said fourth oil passage, said fourth oil passage being connected to said third oil passage at a location remote from said transmission system lube oil passage and downstream of said pressure regulating valve.
3. The lubricant oil hydraulic system for the tracked vehicle of claim 2, wherein a sixth oil path is arranged between the fourth oil path and the pressure oil tank, and a torque converter constant pressure valve is arranged on the sixth oil path.
4. The lubricating oil hydraulic system for the tracked vehicle as claimed in claim 2 or 3, wherein a seventh oil path is arranged between the fourth oil path and the pressure oil tank, one end of the seventh oil path is connected with a part of the fourth oil path, which is positioned between the hydraulic torque converter and the lubricating oil path of the speed change system, the other end of the seventh oil path is connected with the pressure oil tank, and the seventh oil path is provided with a lubricating constant pressure valve.
5. The track roller lube oil hydraulic system of claim 4, wherein a radiator is provided in said fourth oil path, said radiator being located downstream of the torque converter.
6. The lube oil hydraulic system for tracked vehicle of claim 1, wherein said air pump, scavenge pump and operating pump are coaxially disposed and synchronously driven.
7. The lube oil hydraulic system for a tracked vehicle of claim 1, wherein said second oil path is provided with a first filter and a second filter, said first filter being located upstream of said scavenge pump and said second filter being located downstream of said scavenge pump, said first filter having a higher filtration level than said second filter.
8. The lube oil hydraulic system for tracked vehicle of claim 7, wherein a third filter is provided on said third oil path, said third filter having a filtration level higher than the filtration levels of said first and second filters.
9. The lube oil hydraulic system of claim 1, wherein said pressurized reservoir lubricates other parts of the system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021085456.XU CN212429700U (en) | 2020-06-12 | 2020-06-12 | Lubricating oil hydraulic system for tracked vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021085456.XU CN212429700U (en) | 2020-06-12 | 2020-06-12 | Lubricating oil hydraulic system for tracked vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212429700U true CN212429700U (en) | 2021-01-29 |
Family
ID=74272175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021085456.XU Active CN212429700U (en) | 2020-06-12 | 2020-06-12 | Lubricating oil hydraulic system for tracked vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212429700U (en) |
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2020
- 2020-06-12 CN CN202021085456.XU patent/CN212429700U/en active Active
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