Hydraulic differential mechanism for shield carrier
A technology for a carrier truck and a differential mechanism, which is applied to vehicle components, transportation and packaging, and control devices, etc., which can solve problems such as the decline in the differential effect, the impact on normal steering, and weak traction, so as to reduce the degree of wear and eliminate errors. , the effect of high control precision
Inactive Publication Date: 2015-06-03
嘉兴市凯斯通信工程建设有限公司
View PDF1 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, due to the lack of signal feedback of this kind of hydraulic differential lock, the processing and manufacturing, installation, and the accuracy of the differential itself, the dead zone of the differential, etc., the control accuracy cannot meet the requirements, and the displacement of the inner and outer pumps cannot be adjusted according to the requirements. If the expected value is adjusted, the differential effect will decrease, mainly due to the following effects:
[0004] The tires on the side with higher pump pressure provide most of the traction, when the traction is greater than the adhesion, the tires tend to slip and tire wear increases
[0005] The tires on the side with lower pump pressure will have weak traction or even tug due to insufficient fuel supply, which will affect normal steering
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0016] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:
[0017] see Figure 1~2 , a hydraulic differential mechanism for a support truck, comprising a swing cylinder 2, on which pilot valves 1a, 1b are provided, a cam 3 is provided at the bottom of the swing cylinder 2, and the swing cylinder 2 controls the cam through a pressure difference 3 swing, thereby controlling the spool movement of pilot valve 1a or pilot valve 1b.
[0018] The two-position three-way valve 4a, 4b is provided at the end of the swing cylinder 2, and the two-position three-way valve 4a, 4b is connected to the closed pipeline 5a, 5b, and the closed pipeline 5a, 5b is provided with Pressure cut-off valves 6a and 6b, when the rack truck turns, the steering pressure controls the two-position three-way valves 4a and 4b to change direction, and the high-pressure oil in the closed pipelines 5a and 5b enters into the swing through the ...
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
Login to View More Abstract
The invention discloses a hydraulic differential mechanism for a shield carrier. The hydraulic differential mechanism comprises a swing oil cylinder, a pilot valve is arranged on the swing oil cylinder, a cam is arranged on the lower portion of the swing oil cylinder, a two-position three-way valve is arranged at the end of the swing oil cylinder and connected with a closed pipeline, and a pressure cut-off valve is arranged inside the closed pipeline. According to the hydraulic differential mechanism for the shield carrier, by the aid of the swing oil cylinder, a feedback control function is achieved, errors are eliminated, pump displacement control precision is high, consistent pressure of the closed pipeline is kept by displacement of a control pump in steering, tire wear degree is decreased, and normal steering cannot be affected.
Description
technical field [0001] The invention relates to a hydraulic differential mechanism, in particular to a hydraulic differential mechanism for a support transport vehicle. Background technique [0002] When the fully hydraulically driven vehicle is turning, due to the speed difference between the inner and outer tires, the vehicle's own differential mechanism is mainly used to ensure that there is no relative sliding between the inner and outer tires and the ground when the vehicle is turning (that is, pure rolling). Realize the differential speed between the inner and outer tires, so as to ensure the pure rolling between the tires and the ground. [0003] Although there is also a vehicle differential in the market now, for example, the patent announcement number of China is CN200820148609, and the announcement date is an invention patent on May 20, 2009, which is called a tractor hydraulic differential lock. However, due to the lack of signal feedback of this kind of hydrauli...
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
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): B60K17/16B60K17/10
Inventor 叶斌
Owner 嘉兴市凯斯通信工程建设有限公司