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Static pressure braking energy recovery system of underground carry scraper

A brake system and static pressure technology, applied in the direction of hydrostatic brakes, brake types, mechanical equipment, etc., can solve problems such as kinetic energy waste and engine stall

Inactive Publication Date: 2015-10-14
SANDVIK INTELLECTUAL PROPERTY AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, it may cause the engine to stall, for example, the speed exceeds 2800 rpm
[0005] Another disadvantage of existing hydrostatic braking systems is that kinetic energy is wasted

Method used

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  • Static pressure braking energy recovery system of underground carry scraper
  • Static pressure braking energy recovery system of underground carry scraper
  • Static pressure braking energy recovery system of underground carry scraper

Examples

Experimental program
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Embodiment Construction

[0019] Embodiments of the present invention relate to an energy recovery hydrostatic braking system for an underground scraper. figure 2 A schematic diagram of a downhole loader 200 is shown. The drive chain of the downhole loader 200 begins with the engine 201 . Power is converted into hydraulic energy through gearbox 202 and pump integration 203 . The hydraulic energy is converted into driving force by the motor 204 , and then the driving force is transmitted to the transmission shaft 206 through the gearbox 205 .

[0020] image 3 is a schematic diagram of an energy regenerative hydrostatic braking system according to an aspect of the present invention. When the current travel button is pressed, the SV01 side of the travel direction control valve 2 is energized. If the speed pedal 5 is pressed, the control oil will pass through the SV01 side of the travel direction control valve 2, and the hydrostatic pump 1 will output high pressure oil from A1 to A3 to the hydrostati...

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PUM

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Abstract

The invention relates to a static pressure braking energy recovery system of an underground carry scraper. The static pressure braking energy recovery system of the underground carry scraper comprises a static pressure pump, a booster pump, a static pressure motor, a liquid storage tank and a speed pedal communicated with control oil. The system further comprises a hydraulic control directional valve. The hydraulic control directional valve is communicated with a first side oil way of the static pressure motor through a check valve and communicated with a second side oil way of the static pressure motor through a check valve. An energy accumulator is communicated with the hydraulic control directional valve. The hydraulic control directional valve is controlled by the control oil communicated with the speed pedal. When the speed pedal is pressed down, the hydraulic control directional valve is closed, and the energy accumulator cannot receive high-pressure oil from the first side or the second side of the static pressure motor. If the speed pedal is fast released, the hydraulic control directional valve will open the energy accumulator and receive the high-pressure oil from the first side or the second side of the static pressure motor.

Description

technical field [0001] The invention relates to hydrostatic transmission, and more specifically, to a hydrostatic braking energy recovery system of an underground scraper. Background technique [0002] Hydrostatic drives, also known as closed-loop systems, are the more popular vehicle propulsion systems. Hydrostatic transmission has many characteristics that traditional manual or mechanical transmission do not have. The hydrostatic braking system is only a subsidiary function of the transmission system, and brakes are applied when the pump swash plate of the hydrostatic pump is rotated from the forward or reverse position to the neutral position. [0003] Underground scraper, or mine scraper, is widely used in underground mining machinery industry. Existing downhole loaders use hydrostatic braking, for example, the hydrostatic braking system offered by Brakecore Hydraulics. Such as figure 1 As shown, the existing hydrostatic braking system brakes the rotation of the whee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T10/04
CPCB60T10/04
Inventor 范光强鲁湖斌谢惠康
Owner SANDVIK INTELLECTUAL PROPERTY AB