Servo hydraulic transmission mechanism
A technology of servo hydraulic cylinders and hydraulic valves, which is applied in the direction of servo motor components, fluid pressure actuators, mechanical equipment, etc., can solve the problems of complex interlocking devices, complex structures, and inconvenient use, so as to avoid hidden dangers of mechanical failures, Meet the effect of long stroke and easy use
Inactive Publication Date: 2012-11-07
宋家骏
View PDF1 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] The existing plate-frame and box-type filter presses generally use hydraulic cylinders to compress the filter plate, in which the pressure relay is used to control the pressing force, and the travel switch is used to control the return stroke. The control sensitivity or precision is relatively poor, and the control function is not perfect.
In addition, multi-cylinder pressing lacks effective synchronous technical measures, and serious mechanical failures have occurred
U.S. Patent US6099725 uses two hydraulic cylinders arranged on both sides of the filter plate to complete the above three operations of pulling, closing and pressing, and uses a rack and pinion interlocking device to ensure the synchronous operation of the two hydraulic cylinders. The interlocking device has a complicated structure Shortcomings
Using the servo hydraulic cylinder can cancel the mechanical interlocking device and simplify the mechanical structure, but the existing servo hydraulic system and electrical control system are very complicated, expensive, and not easy to use
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
[0023] figure 1 It is a servo hydraulic cylinder including a servo hydraulic valve of the present invention. The servo hydraulic cylinder includes a servo hydraulic valve (001) and a hydraulic cylinder (002) integrated therewith. The servo hydraulic valve (001) includes a casing (1), a control valve (003), a sensor (004), and a gear pair (005). The gear pair (005) includes a driving gear (2), a driven gear A (3) and a driven gear B (4). The control valve (003) includes a valve casing (5), a valve core (6), a valve sleeve (7), and a stepping motor (8). One end of the valve sleeve (7) is fixedly connected with the driven gear A (3), and the valve core (6) is inserted into the inner hole of the valve sleeve (7). The valve casing (5) is a part of the casing (1), the stepper motor (8) is installed on the end face of the valve casing (5), and its output shaft is inserted into the valve core (6 ) in the inner hole at one end and connected with a key. The outer wall of the valve ...
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
Conventional pressure filters generally adopt hydraulic cylinder-driven opening / closing compression mechanisms, and have numerous disadvantages of unreliable multi-cylinder synchronous operation, bad control sensitivity and precision, and the like. The invention proposes an opening / closing compression mechanism driven by a hydraulic cylinder comprising a servo hydraulic valve or by a hydraulic motor in order to realize digital control over position, stroke, speed, pressure and other motion variables and adapt to the work characteristics and need of pressure filters better. The servo hydraulicvalve has a hydraulic control valve controlled by a stepping motor, a position sensor and a pressure sensor, and is combined with the hydraulic cylinder or the hydraulic motor as a whole. The mechanism has the advantages of perfect control function, improved sensitivity, precision, work stability and reliability and use convenience. In addition, as a hydraulic system, a motion control system and an electric automatic control system are simplified and less in components, the servo hydraulic transmission mechanism is advanced, reasonable, economical and applicable.
Description
technical field [0001] The invention relates to the technical field of hydraulic transmission, in particular to a digitally controlled hydraulic control valve, an actuator and a filter press using the mechanism. Background technique [0002] Existing plate-frame and box-type filter presses generally use hydraulic cylinders to compress the filter plate, in which a pressure relay is used to control the pressing force, and a travel switch is used to control the return stroke. The control sensitivity or precision is relatively poor, and the control function is not perfect. In addition, multi-cylinder pressing lacks effective synchronous technical measures, and serious mechanical failures have occurred. U.S. Patent No. 6,099,725 uses two hydraulic cylinders arranged on both sides of the filter plate to complete the above three operations of pulling, closing, and pressing. A rack and pinion interlocking device is used to ensure the synchronous operation of the two hydraulic cylind...
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 Patents(China)
IPC IPC(8): F15B13/02B01D25/172
Inventor 宋家骏赵鸿才宋为
Owner 宋家骏
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
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