Travel brake electric hydraulic control device for hydraulic driving axle of self-propelled grain combine harvester
A technology of combine harvester and service brake, applied in the direction of brake transmission, brake, vehicle parts, etc., can solve problems such as brake failure, safety accident, etc., to improve the success rate, improve safety, ensure sealing and anti-vibration performance effect
Inactive Publication Date: 2015-06-10
青岛科瑞特传动科技有限公司
View PDF6 Cites 3 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
If the service braking mode of the hydrostatic drive axle on the market fails to step on the left and right pedals of the brake at the same time, or fails to reduce the displacement output of the hydraulic pump to the minimum in time, the brake will fail and cause a safety accident
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
[0017] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.
[0018] The hydraulic continuously variable transmission drive axle service brake electro-hydraulic control device described in this patent is connected to the whole vehicle as follows: figure 1 As shown, the main components include wheel reducer, connecting sleeve, connecting shaft, left brake, brake pump assembly, brake fluid container, left brake pedal, connecting plate, right brake pedal, electro-hydraulic control device for service brake , right brake, gearbox, hydraulic motor, and variable displacement piston pump. The variable displacement piston pump is a swash plate type variable displacement piston pump. For the connection relationship, refer to the at...
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 travel brake electric hydraulic control device for a hydraulic driving axle of a self-propelled grain combine harvester, and can be applied to the technical fields of static hydraulic pressure and brake of the large-sized self-propelled grain combine harvester. The invention adopts the technical scheme as follows: the travel brake electric hydraulic control device for the hydraulic driving axle of the self-propelled grain combine harvester comprises a driving mechanism, a hydrostatic driving axle assembly and a brake pump assembly; the travel brake electric hydraulic control device is characterized by being connected between a volume adjustable hydraulic pump of the hydrostatic driving axle assembly and the brake pump assembly; a pressure sensor and a signal recognizer are arranged on the travel brake electric hydraulic control device and connected with a PLC; the pressure sensor is used for detecting the pressure of a left brake pedal and a right brake pedal and transmitting the detected signals to the PLC; the PLC is used for processing the received signals and transmitting the processed signals to the brake signal recognizer; the brake signal recognizer is used for cutting off oil supply of the volume adjustable hydraulic pump, so as to enable the driving mechanism to stop working. The travel brake electric hydraulic control device disclosed by the invention ensures the driving safety.
Description
technical field [0001] The invention is applied in the fields of hydrostatic technology and braking technology of large self-propelled grain combine harvesters. Background technique [0002] With the rapid development of agricultural mechanization in China in recent years and the transformation of agricultural production towards an intensive production model, the market demand for large self-propelled combine harvesters has grown exponentially every year. In recent years, with the development of hydrostatic technology, domestic hydrostatic drive axles have gradually emerged in the market. Hydrostatic drive axles are gradually becoming the main development direction of the harvester drive axle market due to their advantages such as simple operation, convenient maintenance, and low failure rate. . This type of hydrostatic drive axle can realize the fast steering of the harvester by stepping on the left and right brake pedals when turning to harvest the ground; step on the lef...
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): B60T13/66
CPCB60T13/686
Inventor 徐建彬罗振华钱亮
Owner 青岛科瑞特传动科技有限公司