Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Hydraulic brake circuit and brake method

A hydraulic brake and circuit technology, applied in fluid pressure actuators, servo motors, servo motor components, etc., can solve problems such as brake wear, frequent maintenance of the brake system, and large brake devices

Inactive Publication Date: 2016-05-11
CHINA PETROLEUM & CHEM CORP +1
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using this method of braking, there are problems such as frequent braking resulting in serious brake wear, vibration during rapid braking, large braking device, and frequent maintenance of the braking system.

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
  • Hydraulic brake circuit and brake method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The detailed description and technical content of the present invention are described below with the accompanying drawings, but the accompanying drawings are only provided for reference and description, and are not intended to limit the present invention.

[0019] Refer to attached figure 1 , a hydraulic brake circuit, including a motor 6, an accumulator 1, a front pump / motor 5, a rear pump / motor 8, a front hydraulic control check valve 3, a rear hydraulic control check valve 7, and an electromagnetic reversing valve 2 On the one hand, the motor is sequentially connected to the front pump / motor, the front hydraulic control check valve, and the accumulator, and on the other hand, it is sequentially connected to the rear pump / motor, the rear hydraulic control check valve, and the wellhead hydraulic cylinder 10; Directional valve, front pump / motor, rear pump / motor are all connected with oil tank 4. The accumulator, the front hydraulic control check valve, and the rear hyd...

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 hydraulic brake circuit and a brake method. The hydraulic brake circuit comprises a motor, an energy accumulator, a front pump / motor, a rear pump / motor, a front pilot operated check valve, a rear pilot operated check valve and an electromagnetic reversing valve. On one hand, the motor is sequentially connected with the front pump / motor, the front pilot operated check valve and the energy accumulator, and on the other hand, the motor is sequentially connected with the rear pump / motor, the rear pilot operated check valve and a wellhead hydraulic cylinder. The electromagnetic reversing valve, the front pump / motor and the rear pump / motor are connected with an oil tank. The energy accumulator, the front pilot operated check valve and the rear pilot operated check valve are connected with the electromagnetic reversing valve. By the adoption of the hydraulic brake circuit, through the electromagnetic reversing valve and by the utilization of high-pressure loop fluid of the energy accumulator, the work states of the pilot operated check valves are controlled. The two pilot operated check valves are adopted to act synchronously, a hydraulic loop of the wellhead hydraulic cylinder and a hydraulic loop of the energy accumulator are closed and opened, and a wellhead hydraulic cylinder plunger can start and stop in any position.

Description

technical field [0001] The invention relates to a braking technology for a hydraulic lifting device, in particular to a hydraulic braking circuit and a braking method for a hydraulic lifting device. Background technique [0002] Hydraulic lifting technology is a new lifting technology for oil and water well drainage. This technology uses a motor to drive the hydraulic system to provide power for the wellhead hydraulic cylinder, drive the downhole equipment to run up and down, and lift the liquid in the wellbore. In the previous oil and water well lifting equipment, for equipment that uses electric motors as the power source, braking devices such as electromagnetic brakes are generally used to brake the power system. Braking in this way has problems such as severe brake wear caused by frequent braking, vibration during rapid braking, large braking device, and frequent maintenance of the braking system. Contents of the invention [0003] The purpose of the present invention...

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): F15B11/00F15B1/02F15B13/02
Inventor 张雷刘常福杭发琴徐文庆刘丙生肖姝贺启强姜东邱明文魏斌康怡亭
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com