One-hydraulic-motor double-loop control system

一种液压马达、控制系统的技术，应用在流体压力致动系统组件、伺服马达、传动装置控制等方向

Active Publication Date: 2014-05-21
DINGXIANG COUNTRY YIFALAN CO LTD
View PDF7 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although the above-mentioned technical solutions realize the effective recovery of energy in the slewing, lifting and traveling mechanisms, and use it as a driving force, they cannot use one hydraulic motor to meet the driving requirements of different working conditions and loads at the same time, and at the same time have a simple structure. , High system reliability, energy saving and high efficiency

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
  • One-hydraulic-motor double-loop control system
  • One-hydraulic-motor double-loop control system
  • One-hydraulic-motor double-loop control system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as Figure 4 As shown, the active control loop 2 of the single hydraulic motor dual-loop control system in this embodiment adopts an open loop with independent control of inlet and outlet, and the passive control loop 3 adopts an open loop controlled by a proportional directional valve, wherein the active control loop 2 Including the I, II, III pressure sensors 27, 28, 34, the I, II, III, IV two-position two-way proportional throttle valves 29, 30, 32, 33, and the I overflow Valve 31; passive control circuit 3 includes first and second one-way valves 36, 37 and electromagnetic proportional directional valve 35;

[0034] The first working oil port E of the active control circuit is connected with the first oil inlet and outlet A of the hydraulic motor 1, and the second working oil port F of the active control circuit is connected with the second oil inlet and outlet B of the hydraulic motor 1; passive control The third working oil port G of the circuit is connected...

Embodiment 2

[0039] Such as Figure 5 As shown, the active control loop 2 of the single hydraulic motor dual loop control system in this embodiment adopts a closed loop controlled by a hydraulic pump, and the passive control loop is an open loop controlled by a proportional directional valve. Among them, the active control circuit 2 includes the first, second and third relief valves 31, 41 and 42, the first and second one-way valves 36 and 37, the second V two-position two-way proportional throttle valve 44 and the charge pump 43. The passive control circuit 3 includes an electromagnetic proportional directional valve 35; the hydraulic pump 4 is a two-way variable pump, powered by a power source 39, and the power source 39 is an internal combustion engine or an electric motor with a constant speed;

[0040] The first working oil port E and the second working oil port F of the active control circuit are respectively connected with the first oil inlet and outlet port A and the second oil inl...

Embodiment 3

[0045] Such as Image 6 As shown, the hydraulic pump 4 is a quantitative hydraulic pump, and the power source 39 is an electric motor with adjustable speed, which can be an AC asynchronous motor, an AC or DC servo motor or a switched reluctance motor, etc., and has a speed control device.

[0046] In the single hydraulic motor dual-loop control system in this embodiment, the closed loop controlled by the hydraulic pump in the active control loop is the same as the active control loop in Embodiment 2, and the passive control loop 3 adopts an open loop with independent control of inlet and outlet and oil ports. It is the same as the active control loop in Embodiment 1.

[0047] The connection mode between the active control circuit and the hydraulic motor is the same as the connection mode between the active control circuit and the hydraulic motor in Embodiment 2; the third working oil port G and the fourth working oil port H of the passive control circuit are respectively conne...

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 one-hydraulic-motor double-loop control system and belongs to the technical field of hydraulic transmission control. The one-hydraulic-motor double-loop control system comprises a hydraulic motor, an active control loop, a passive control loop, a hydraulic pump, an energy accumulator and an oil tank. The hydraulic motor is of a unique flow allocation structure and is provided with four oil inflow and outflow ports, the active control loop and the passive control loop work independently and control the hydraulic motor, the hydraulic motor can be driven by the active control loop and the passive control loop simultaneously or driven by one of the active control loop and the passive control loop independently, the braking kinetic energy and potential energy of loads can be stored in the energy accumulator, and therefore energy can be recycled. According to the one-hydraulic-motor double-loop control system, one hydraulic motor is adopted, so that the driving requirements of different working conditions and different loads are satisfied at the same time and the system has the advantages of being simple in structure, high in system reliability, capable of saving energy and efficient.

Description

technical field [0001] The invention belongs to the technical field of hydraulic transmission control, and in particular relates to a single hydraulic motor double circuit control system. Background technique [0002] As a rotary actuator, the hydraulic motor is mainly used to drive the rotation, lifting and driving of the machine. In actual use, due to the relatively large inertia of the driven load, the hydraulic motor is often required to have a large output during the starting and acceleration stages. Torque, and after turning into stable operation, the required torque will be reduced a lot, and a large braking torque is required in the braking process. Therefore, when selecting a hydraulic motor, the system must be determined according to the maximum torque during work. The pressure and displacement often increase the volume of the hydraulic motor and the volume of the supporting hydraulic control system, which reduces the working efficiency of the entire system. [00...

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 Applications(China)
IPC IPC(8): F15B1/02F15B13/02
CPCB60K6/12E02F9/128E02F9/2217E02F9/2289E02F9/2296F15B1/024F15B21/14F15B2211/20515F15B2211/20523F15B2211/20546F15B2211/20561F15B2211/212F15B2211/30575F15B2211/3058F15B2211/6309F15B2211/6313F15B2211/7058F15B2211/761F15B2211/88F16H61/40F16H61/4096F16H61/448F16H2061/0034Y02T10/62F15B11/04F15B11/08F15B13/0401F15B13/044F15B2013/041F15B2211/20538F15B2211/214F15B2211/265F15B2211/625F15B2211/7051F16H61/00F16H61/0025F16H61/0267
Inventor 权龙高有山郝慧敏黄家海杨敬
Owner DINGXIANG COUNTRY YIFALAN 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