Unlock instant, AI-driven research and patent intelligence for your innovation.

Steering brake valve for 520- horsepower soil shifter

A steering brake valve and steering valve technology, applied in the direction of brakes, brake components, fluid steering mechanisms, etc., can solve the problem of steering and braking of bulldozers with less than 520 horsepower, lack of hydraulic self-locking brake protection function, low pressure, etc. problem, to achieve rapid and reliable braking, prevention of unsafe driving factors, and no pressure impact

Active Publication Date: 2012-06-27
SHANTUI CONSTR MASCH CO LTD
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above two hydraulic transmission steering brake valves cannot meet the steering and braking requirements of a 520-horsepower bulldozer due to their small flow and low pressure. Miswalking movements that may occur after

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
  • Steering brake valve for 520- horsepower soil shifter
  • Steering brake valve for 520- horsepower soil shifter
  • Steering brake valve for 520- horsepower soil shifter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] Such as Figure 1 to Figure 5 A steering brake valve for a 520-horsepower bulldozer is shown. Its structure is composed of two left and right steering valves 100, two left and right brake valves 200, and a self-locking valve 300. The valves are cast with oil passages through the valve body. Connecting, using the organic combination of the structure and function of the respective valve components and the mechanical structure related to the outside of the valve, the principle and function requirements of the high-horsepower bulldozer are realized. The hydraulic principle of the present invention is: as figure 1 In the original state shown, when the bulldozer starts, the pressure oil P passes through the self-locking valve 300, opens the one-way valve 18, enters the brake valve 200, and enters the large chamber of the brake clutch 500 after throttling, and pushes the clutch 500 to move to the right. The brake belt is separated from the running wheel, and the whole machin...

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 steering brake valve for a 520 horsepower soil shifter, which is characterized in that: the valve is a combined valve integrating two steering valves arranged left and right, two brake valves arranged left and right and a self-locking valve; the steering valves, brake valves and self-locking valve are integrated in a valve body I with an inside oil way; the valve body I is connected with a valve body II through a bolt I and a sealing gasket III, and is connected with a valve body III through a bolt II, a plate, a sealing gasket I and a sealing gasket II; the valve body III is provided with a brake connecting rod mechanism and a steering connecting rod mechanism which is connected with a top rod I of the steering valve through an eccentric block thereon in a free way; the brake connecting rod mechanism is connected with top rods of the brake valves in a free way; the valve body II is provided with a self-locking connecting rod mechanism and connected with an unidirectional sliding valve key; and the combinational valve is mounted on the soil shifter through a bolt III. The steering brake valve enables the large-horsepower soil shifter to realize minor-radius steering and first steering and later braking, and can realize self locking of the brake.

Description

technical field [0001] The invention relates to a sliding valve mechanism or a valve device, in particular to a steering and braking control valve for a high-horsepower bulldozer. It is used for the hydraulic control of the left and right steering and braking of the 520 horsepower bulldozer during walking. Background technique [0002] The hydraulic transmission steering brake control valve is one of the core devices used in today's advanced bulldozers. At present, there are basically two types of steering brake valves for hydraulic transmission of bulldozers. One is the steering valve and brake valve that control the steering clutch and braking device, which is composed of a manual reversing valve and a liquid flow diverter valve. The other is to use the manual reversing linkage device to control the steering and brake spools to turn first and then brake. This structure is smaller than the first structure, but the pressure valve and the steering brake valve are separated. ...

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
Patent Type & Authority Patents(China)
IPC IPC(8): B62D5/08B60T15/08
Inventor 刘勇王舒孙茂军赵德芳
Owner SHANTUI CONSTR MASCH CO LTD