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Hydraulic transmission device with flush valve

A technology of hydraulic transmission device and flushing valve, which is applied in the direction of transmission device, fluid transmission device, fluid pressure actuation device, etc. It can solve the problems of motor starting, braking instability, poor heat dissipation effect of transmission device, etc.

Active Publication Date: 2015-09-23
海特克动力股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when this transmission device is in use, the impurities in the first oil passage and the second oil passage cannot be washed away, and the heat dissipation effect of the transmission device is poor, which makes the motor start and brake unstable

Method used

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  • Hydraulic transmission device with flush valve
  • Hydraulic transmission device with flush valve
  • Hydraulic transmission device with flush valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as Figure 1-8 As shown, a hydraulic transmission device with a flushing valve includes a casing 1 on which an oil pump 2, a motor 3, a first oil passage 4, a second oil passage 5, a first oil passage 4, a second oil passage The two ends of the channel 5 are respectively connected with the oil pump 2 and the motor 3, the oil pump 2, the first oil channel 4, the motor 3, and the second oil channel 5 form a hydraulic circuit, the casing 1 is provided with an oil drain port 9, the first oil channel 4, A first relief valve 6 and a second relief valve 7 are respectively provided on the second oil passage 5, and the oil pump 2 is also connected with an oil charge pump 8, and a second oil charge pump 8 and the oil discharge port 9 are also provided between the oil charge pump 8 and the oil discharge port 9 Three relief valves 10, the first relief valve 6, the second relief valve 7 are connected to the inlet end of the third relief valve 10, the first oil passage 4 is prov...

Embodiment 2

[0034] Such as Figure 1-7As shown in , 9, a hydraulic transmission device with a flushing valve includes a casing 1 on which an oil pump 2, a motor 3, a first oil passage 4, a second oil passage 5, a first oil passage 4, a second oil passage Both ends of the second oil passage 5 are respectively connected with the oil pump 2 and the motor 3. The oil pump 2, the first oil passage 4, the motor 3, and the second oil passage 5 form a hydraulic circuit. 4. The first relief valve 6 and the second relief valve 7 are respectively provided on the second oil passage 5, and the oil pump 2 is also connected with a charging pump 8, and an oil charging pump 8 and an oil discharge port 9 are also provided. There is a third relief valve 10, the first relief valve 6, the second relief valve 7 are connected to the inlet end of the third relief valve 10, the first oil passage 4 is provided with a flushing valve 11', flushing The valve 11' includes a valve body 111' and a valve core 112'. The v...

Embodiment 3

[0037] Such as Figure 1-7 As shown in , 10, a hydraulic transmission device with a flushing valve includes a casing 1 on which an oil pump 2, a motor 3, a first oil passage 4, a second oil passage 5, a first oil passage 4, a second oil passage Both ends of the second oil passage 5 are respectively connected with the oil pump 2 and the motor 3. The oil pump 2, the first oil passage 4, the motor 3, and the second oil passage 5 form a hydraulic circuit. 4. The first relief valve 6 and the second relief valve 7 are respectively provided on the second oil passage 5, and the oil pump 2 is also connected with a charging pump 8, and an oil charging pump 8 and an oil discharge port 9 are also provided. There is a third relief valve 10, the first relief valve 6, the second relief valve 7 are connected to the inlet port of the third relief valve 10, the first oil passage 4 is provided with a flushing valve 11'', The flushing valve 11'' includes a valve body 111'' and a valve core 112''...

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PUM

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Abstract

The invention relates to a hydraulic transmission device with a flush valve. The hydraulic transmission device comprises a shell provided with an oil pump, a motor, a first oil way and a second oil way. At least one of the first oil way and the second oil way is provided with the flush valve. The flush valve comprises a valve body and a valve element. A valve cavity is formed in the valve body. The valve element is in lifting fit with the valve body. The valve cavity is internally provided with a rest piece for resetting the valve element. The valve element is provided with an oil inlet communicated with the valve cavity. The valve body is provided with an oil outlet communicated with the valve cavity. The shell is provided with an oil drainage port communicated with the oil outlet. A sealing structure for closing the oil inlet or the oil outlet when the valve element descends is arranged between the valve body and the valve element. By means of the technical scheme and the hydraulic transmission device with the flush valve, impurities in the oil ways can be washed away, meanwhile, the hydraulic transmission device is good in heat dissipation effect, and the motor is started and braked more stably.

Description

technical field [0001] The invention relates to a hydraulic transmission device, in particular to a hydraulic transmission device with a flushing valve. Background technique [0002] An existing hydraulic transmission device includes a housing on which an oil pump and a motor are arranged, a first oil passage and a second oil passage, both ends of the first oil passage and the second oil passage are respectively connected to the oil pump and the motor, and the oil pump , The first oil passage, the motor, and the second oil passage form a hydraulic circuit. When the oil in the oil pump flows into the motor from the first oil passage, it flows back to the oil pump through the second oil passage to realize the normal rotation of the motor; when the oil in the oil pump flows from the second oil passage The oil channel flows into the motor, and flows back to the oil pump through the first oil channel to realize the reverse rotation of the motor. However, when this transmission ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B21/04F16H39/02
CPCF15B21/041F16H39/02
Inventor 杨小理
Owner 海特克动力股份有限公司