Driving device with safety device

A technology for safety devices and driving devices, applied in fluid pressure actuating devices, fluid pressure actuating system safety, fluid pressure actuating system components, etc. Restrictions and other issues to achieve the effect of eliminating the phenomenon of speeding

Inactive Publication Date: 2019-03-26
常州钟楼高新技术创业服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there is no speed limit protection function in the cableway driving device, especially the mining cableway hydraulic driving device. When the speed regulation part fails, the maximum operating speed of the driving device cannot be limited, and there is a safety hazard of speeding. threat to personal safety

Method used

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  • Driving device with safety device
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  • Driving device with safety device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Such as figure 1 As shown, a driving device with a safety device includes a motor 4, a self-circulating pump 14, and a hydraulic system. The motor 4 is connected to the self-circulating pump 14, and a safety device 32 is connected to the control oil circuit of the hydraulic system. The safety device 32 It can be a safety valve or a relief valve. The connection relationship of the hydraulic system is as follows: the oil inlet S of the self-circulation pump 14 is connected to the oil outlet pipe of the oil tank 1, and the self-circulation pump 14 has a built-in charge pump oil outlet X3 and a reversing valve The P port of 19 is connected, the P port of the safety device 32 is connected with the P port of the reversing valve 19, and the T port of the other end of the safety device 32 is respectively connected with the T port of the reversing valve 19 and the oil return branch pipe T3 of the fuel tank 1 The ports A and B of the reversing valve 19 are respectively connected ...

Embodiment 2

[0019] Such as figure 2 As shown, a driving device with a safety device whose speed is regulated by an overflow valve, in order to make the operating speed of the driving device steplessly adjustable, an overflow valve 35 is added to the basic structural schematic diagram of the driving device with a safety device A relief valve 35 is connected to the P port of the reversing valve 19, and the connection relationship of the hydraulic system is: the P port of the relief valve 35 is connected to the P port of the reversing valve 19, and the relief valve 35 The T oil port of the oil tank 1 is connected with the oil return branch pipe T3 of the oil tank 1.

Embodiment 3

[0021] Such as image 3 As shown, a driving device with a safety device that uses a pressure reducing valve to adjust the speed, in order to make the operating speed of the driving device steplessly adjustable, a pressure reducing valve 36 is added to the basic structural schematic diagram of the driving device with a safety device , a pressure reducing valve 36 is connected in series between the oil outlet X3 of the built-in charge pump of the self-circulating pump 14 and the P port of the reversing valve 19, and the connection relationship of the hydraulic system is: the P port of the pressure reducing valve 36 and the automatic Circulation pump 14 is connected with oil outlet X3 of built-in charge pump, oil port A of pressure reducing valve 36 is connected with port P of reversing valve 19, oil port T of pressure reducing valve 36 is connected with oil return branch pipe of oil tank 1 T3 connection.

[0022] working principle:

[0023] The operating speed of the control s...

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PUM

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Abstract

The invention provides a driving device with a safety device. The driving device comprises a motor, a self-circulating pump, the safety device and a hydraulic system. The driving device cannot happenthe galloping phenomenon; and when a fault occurs in a speed regulating portion of the driving device and the maximum operating speed of the driving device cannot be controlled, the safety device in the driving device can automatically control the maximum operating speed of the driving device to not exceed a set value, so that the galloping phenomenon is avoided.

Description

technical field [0001] The invention relates to the technical field of hydraulic drive, in particular to a drive device with a safety device. Background technique [0002] At present, there is no speed limit protection function in the cableway driving device, especially the mining cableway hydraulic driving device. When the speed regulation part fails, the maximum operating speed of the driving device cannot be limited, and there is a safety hazard of speeding. Threat to personal safety. Contents of the invention [0003] In order to overcome the following problems in the prior art, the existing ropeway hydraulic drive device does not have a speed limit protection function, and there is a potential safety hazard of the phenomenon of speeding, which poses a threat to personal safety; the invention provides a safety device The driving device includes a motor, a self-circulating pump, and a hydraulic system, and it is characterized in that: the hydraulic system includes an o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B21/08F15B20/00
CPCF15B21/08F15B20/00
Inventor 花伟成
Owner 常州钟楼高新技术创业服务有限公司
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