CN2704732Y

CN2704732Y - Actuator of hand wheel

Info

Publication number: CN2704732Y
Application number: CN 200420038998
Authority: CN
Inventors: 高传孟
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-03-17
Filing date: 2004-03-17
Publication date: 2005-06-15
Anticipated expiration: 2014-03-17

Abstract

The utility model discloses an electric handwheel actuator used on valves of pipelines in chemical plants and fertilizer plants. The utility model is characterized in that the utility model is made of a bicycle wheel type plastic round disk. An annular cavity (2) on the outer edge is provided with three baffles (3). Each segment of the annular cavity is placed with an arc pocket (7) made of plastic soft materials. Arc pockets are filled with ferrite magnetic powders and machine oil. A winding (8) wound by enamelled wires is outside the arc pockets (7). Both ends of the winding are respectively connected with two copper rings enchased on the outer wall of the annular cavity. Direct current is led in through the rolling contact of a bearing (10) and the copper rings (4) arranged on a U-shaped fork, and the direct current and the winding (8) form a magnetism liquid direct current motor to push the electric handwheel actuator to rotate. The central position of a plastic round disk (1) is provided with a square hole (6) connected with a valve rod of a manual valve. The plastic round disk (1) is also enchased with a radial metal spoke matched with a detection winding (9) arranged at the top of the U-shaped fork to detect the position of an electric handwheel. The utility model can be used in executing mechanisms of automatic control loops in chemical plants and fertilizer plants. When a handwheel of an original manual control valve is removed, an original valve is remained, the utility model is replaced on the original valve, and thus the valve can be used. The utility model can be arranged vertically or horizontally with shutdown. The utility model has light weight, small volume and rotary application, does not need the installation of spare valves connected in series, can be used by hand and automatically after a motor driving card is matched with the utility model.

Description

Electronic handwheel final controlling element

Technical field: the utility model relates to chemical industry equipment, specifically the electronic handwheel final controlling element of using about valve.

Background technique: many valves are installed on the pipeline of chemical industry, chemical fertilizer factory, the occasion of regulating at needs is many with electric actuator or the air bladder valve actuator as automatic control loop, these actuators with compare with the manually-operated gate of bore that all volume is big, heavy, vertical mostly the installation, level is used difficulty; The bar of air bladder valve is a straight journey, adjusting needs source of the gas all the time continuously, the air bladder valve is with standard-sized sheet in case source of the gas goes wrong, a manual service valve must not no longer be installed in series during use, and the installation of must stopping, it is rotary that hand control valve mostly is, but it is motionless to be transferred to the certain position long period.

Summary of the invention: the purpose of this utility model provides a kind of electronic handwheel final controlling element, replaces the mechanical handwheel of hand control valve, realizes the effect of motor-operated control valve gate switch.The technical solution of the utility model is achieved in that week that electronic handwheel final controlling element is a plastic disc is along the magnetic liquid direct current motor that three arcs are installed, as shown in drawings, it is made of a wheeled plastic disc of bicycle, the toroidal cavity at outer rim place is provided with three plate washers, toroidal cavity is divided into three parts, place an arcuate pocket made from the plastics softwood in each section toroidal cavity, be full of ferromagnetic oxide powder and machine oil in the capsule, the outside of capsule is the coil that twines with the copper enameled cable, one end of coil is connected with a copper ring on being embedded in the toroidal cavity outer wall, the other end is connected with another copper ring, the valve rod that the central position of plastic disc has a square hole and manually operated valve joins, also be inlaid with radial metal spoke on the plastic disc, its effect one is to reinforce electronic handwheel, the 2nd, be used to detect the switching position of electronic handwheel; The switching position of DC conductance being gone into coil and detecting handwheel is pitched by U-shaped and is realized, the U-shaped fork is made with the rubber-like metal pipe, a Test coil is equipped with in the terminal inboard of each prong, it below the Test coil a rotating bearing, be provided with a stretched spring between two prongs below the bearing, each Test coil is connected with a lead with bearing, draw with integrated socket from the center hole of U-shaped fork and to peg graft, the U-shaped fork is that two bearings contact with two copper bar circles rollings respectively with the mounting point of handwheel, and Test coil is deep into the position that is inlaid with the metal spoke.Convert the principle of mechanical energy to according to electric energy, when passing to direct current in the coil, be in magnetic in the electric field and follow left hand rule and move along magnetic line of force direction, apply active force to plate washer, the promotion handwheel rotates, and changes current direction handwheel backward rotation, thereby plays the effect of switch valve; When handwheel rotated, spoke caused that inductance changes during by Test coil, can detect the switching position of valve by the variation of inductance signal.

Description of drawings: 1, structural drawing Fig. 5, the integrated socket schematic representation of location diagram Fig. 4 of the arcuate pocket of electronic handwheel plan view Fig. 2, electronic handwheel cut-away view Fig. 3, splendid attire magnetic and machine oil and handwheel, U-shaped fork.

Among the figure: installation oil and the outer coil 9-Test coil 10-bearing 11-stretched spring 12-lead of magnetic 8-arcuate pocket in the square hole 7-arcuate pocket of the radial metal spoke of the electronic handwheel disk of 1-2-toroidal cavity 3-plate washer 4-copper ring 5-6-center

Embodiment: electronic handwheel final controlling element of the present utility model can be made of engineering plastics, the one side of toroidal cavity can folding, its diameter is that the 1.4-2.2 of former mechanism hand wheel diameter doubly is the best, electronic handwheel final controlling element is joined different valves, arcuate pocket direct current generator power is different, the ratio of the diameter of electronic handwheel final controlling element and magnetic liquid direct current generator diameter is between 6: 1 to 5: 1, and is also more convenient when manually using.The concentration of the magnetic liquid in the arcuate pocket accounts for 75%-85% through the weight that experiment is defined as magnetic.Color on the electronic handwheel panel should change to the operator with reference position information.The metal spoke of inlaying on two faces should stagger, and testing precision is doubled.

Electronic handwheel final controlling element of the present utility model, available single board computer control, driver card program with matching should comprise following function: it is firmly big to overcome inertial time, it is littler to exert oneself after wheel is turned over, and the speed of rotation is moderate, is just changeing the little meeting of will oppositely switching on after a period of time, prevent that magnetic is extruded into pimple, when valve during, provide warning message, and demonstrate the valve switch position near standard-sized sheet or complete shut-down.

Electronic handwheel final controlling element of the present utility model, the actuator that can be used for chemical plant, chemical fertilizer factory's automatic control loop, the handwheel of former hand control valve is dismantled, keep original valve body and change it and can use, need not stop, vertical, level is installed and all can, in light weight, volume is little, rotary application need not be installed the series connection service valve, cooperates the motor driving card then manually, all can use automatically.

Claims

1, a kind of chemical industry that is used for, electronic handwheel final controlling element on chemical fertilizer factory's pipeline valve, it is characterized in that: it is made of a wheeled plastic disc of bicycle, the toroidal cavity at outer rim place (2) is provided with three plate washers (3), place an arcuate pocket made from the plastics softwood (7) in each section toroidal cavity, be full of ferromagnetic oxide powder and machine oil in the capsule, the outside of arcuate pocket (7) is the coil (8) that twines with enameled cable, the two ends of coil link with two copper rings that are embedded on the toroidal cavity outer wall respectively, direct current rolls with copper ring (4) by the bearing (10) that is located at U-shaped and sticks and contacts importing, constitute magnetic liquid direct current generator with coil (8), promote electronic handwheel actuator turns, the central position of plastic disc (1) has a square hole (6) and connects with the valve rod of manually operated valve, also be inlaid with radial metal spoke on the plastic disc (1), cooperate with the Test coil (9) that is located at U-shaped fork top, detect the switching position of electronic handwheel.

2, electronic handwheel final controlling element according to claim 1 is characterized in that: the weight ratio of described magnetic and machine oil is that magnetic accounts for 75-85%.

3, electronic handwheel final controlling element according to claim 1 is characterized in that: the diameter of described plastic disc is that the 1.4-2.2 of former mechanism hand wheel diameter doubly is the best.

4, electronic handwheel final controlling element according to claim 1 is characterized in that: the diameter of described electronic handwheel final controlling element is 6: 1 with the ratio of magnetic liquid direct current generator diameter.

5, electronic handwheel final controlling element according to claim 1 is characterized in that: the diameter of described electronic handwheel final controlling element is 5: 1 with the ratio of magnetic liquid direct current generator diameter.