Integrated proportional valve control method
A control method and technology of proportional valves, applied in fluid pressure actuation devices, fluid pressure actuation system testing, fluid pressure actuation system components, etc. Control some problems such as high cost and heavy debugging workload, and achieve the effects of reducing equipment installation material costs and labor costs, simplifying control methods, and occupying a small space for the device
Inactive Publication Date: 2021-08-20
成都正山机械制造有限公司
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Problems solved by technology
[0004] The purpose of the present invention is to provide an integrated proportional valve control method to solve the problem that the existing proportional valve control system proposed in the above-mentioned background technology is generally separated from the hydraulic part and the electric control part. Composed of drivers, proportional valves, and sensors, the structure is complex, the control part and the hydraulic part are separated, and the debugging workload is large; the existing method is single control point and multi-point control. The structure of the control part has little change; when a single control point is required, The cost of the control part is high, the volume is large, and the workload of debugging is large.
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[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0028] see figure 1 , figure 2 , image 3 and Figure 4 , the present invention provides a technical solution: an integrated proportional valve control method, which is composed of a main proportional valve group 17 integrated in a control cabinet 20, a backup proportional valve group 18, and a proportional valve control device, wherein:
[0029] The main proportional valve group 17 works as follows:
[0030] The upper controller gives the actuator 6 posi...
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The invention discloses an integrated proportional valve control method. An integrated proportional valve is composed of a main proportional valve group, a standby proportional valve group and a proportional valve control device which are integrated in a control cabinet; working of the main proportional valve group comprises the steps that an upper control party gives out an actuating mechanism position signal, a main proportional valve signal is started, a main proportional valve controller in the proportional valve control device is started and uploads a normal working state signal of a controller of the upper control party, and a signal isolator 1 uploads the actuating mechanism position signal. The method has the beneficial effects that a two-way proportional valve and the control device are integrated, the control structure is simple, the occupied space of the device is small, the original control mode is simplified, the device installation material cost and the labor cost are reduced, and the on-site adjustment time of the whole set of the device is shortened; and after the device is adopted, high-precision and high-reliability control over a hydraulic actuating mechanism is achieved, components can be maintained and replaced without shutdown, and the method is suitable when the device is required to operate for a long time and the components need to be maintained and replaced without shutdown.
Description
technical field [0001] The invention belongs to the technical field of proportional valve control, and in particular relates to an integrated proportional valve control method. Background technique [0002] Proportional valve is a new type of hydraulic control device. On ordinary pressure valves, flow valves and directional valves, the proportional electromagnet is used to replace the original control part, and the pressure of the oil flow is continuously and proportionally adjusted according to the input electrical signal. , flow or direction for remote control; proportional valves generally have pressure compensation performance, and the output pressure and flow can not be affected by load changes. [0003] The existing proportional valve control system is generally separated from the hydraulic part and the electronic control part, generally composed of PLC or upper computer, proportional valve driver, proportional valve, sensor, complex structure, separate control part an...
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IPC IPC(8): F15B21/08F15B11/08F15B13/04F15B19/00F15B21/041
CPCF15B21/087F15B11/08F15B13/0401F15B19/00F15B21/041
Inventor 张春李军杨红
Owner 成都正山机械制造有限公司