Load sensing heat dissipation braking variable system of loading machine

A technology of load sensing and variable system, which is applied in the direction of brakes, cooling brakes, hydraulic brake transmissions, etc., can solve the problems that new technologies are rarely promoted, and achieve the effect of easy implementation and energy saving

Active Publication Date: 2013-06-26
GUANGXI LIUGONG MASCH CO LTD
View PDF7 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Not only the load sensing system, but also new systems such as positive flow system and negative flow system have already been applied on excavators, cranes and more road machinery, but these new technologies are rarely promoted on loaders
The operatio

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Load sensing heat dissipation braking variable system of loading machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0014] The present invention mainly consists of a variable displacement plunger pump 2, a parking brake valve 7, a first accumulator 8, a second accumulator 9, a brake valve 10 and a load sensing filling valve 6. Thermal braking system. The pressure oil port of the load sensing filling valve 6 is connected to the pressure oil port of the variable plunger pump 2, and provides pressure oil to the accumulator and the working device in the liquid charging state, and outputs the pressure oil for controlling the LS. To control the variable plunger pump to provide the required flow to the system, always keep the priority of filling.

[0015] The temperature signal of the heat dissipation system is converted into an electrical signal to control the electric proportional pressure reducing valve in the load sensing filling valve, the filling priority is given, and the reversi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a load sensing heat dissipation braking variable system of a loading machine. The load sensing heat dissipation braking variable system of the loading machine is characterized by mainly being composed of a variable displacement piston pump, a parking braking valve, a first energy accumulator, a second energy accumulator, a braking valve and a load sensing prefilling valve in an integral mode. A pressure oil port of the load sensing prefilling valve is connected with a pressure oil port of the variable displacement piston pump. Pressure oil is provided for the energy accumulators and working devices in a prefilling state. Pressure oil used for controlling a limit switch (LS) is output to control the variable displacement piston pump to provide flow required by a system. Priority of prefilling is maintained. A temperature signal of the heat dissipation system is converted into an electric signal to control an electric proportional pressure reducing valve in the load sensing prefilling valve, and the prefillig is prior. The variable displacement piston pump is a load sensing plunger pump comprising an LS control valve and a pressure stop valve and is capable of controlling a variable pump tilting tray to provide the flow required by the system. The load sensing heat dissipation braking variable system of the loading machine has the advantages of being easy to realize, saving in energy, and suitable for being used on loading machines of various tonnage.

Description

technical field [0001] The invention relates to a heat dissipation braking system applied to construction machinery, in particular to a heat dissipation braking variable system of a load sensing loader. [0002] Background technique [0003] Usually, the quantitative system is widely used in the cooling and braking system of loaders. Although the quantitative system can meet the various performances of the cooling system and the braking system, the application of the load sensing system has put the topic of energy saving on the agenda, making the load transmission The application of sense is more and more favored by people. Not only the load sensing system, but also new systems such as positive flow system and negative flow system have already been applied to excavators, cranes and more road machinery, but these new technologies are rarely promoted on loaders. The operation of a loader is not as sensitive as an excavator, nor is it as large as a crane. The technology of t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B60T11/10B60T5/00
Inventor 初长祥李开亮梁振国吴启东王强
Owner GUANGXI LIUGONG MASCH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap