An electromagnetic control actuator for a pulse valve

Abstract

The present invention discloses an electromagnetic control actuator for a pulse valve, which is used to adjust the switch angle of the pulse valve, and includes a main body and an adjustment device. The main body is located above the adjustment device and the main body and the adjustment device are linked. The main body includes a fixed iron core, a moving iron core and a junction box, and the moving iron core is partially built into the fixed iron core; the adjustment device includes a central axis rack, a rotating shaft gear, a first adjustment structure and a second adjustment structure. The electromagnetic control actuator for a pulse valve disclosed by the present invention opens the switch of the valve core of the pulse valve by linking the central axis rack with the rotating shaft gear, and accurately adjusts the opening angle of the valve core of the pulse valve by the adjustment structure. It has the advantages of stable structure, high safety, convenient adjustment and high precision.

Description

Technical Field

[0001] The invention belongs to the technical field of electromagnetic actuators, and in particular relates to an electromagnetic control actuator for a pulse valve. Background Art

[0002] Electromagnetic actuators are used in solenoid valves in many fields of process and manufacturing automation. Pulse valves refer to diaphragm valves that are controlled by electromagnetic or pneumatic pilot valves and can instantly open and close high-pressure gas sources to generate pulses.

[0003] However, the valve core valve of the existing pulse valve generally has only two positions of open or closed, and does not have flow regulation and constant flow performance, which often causes unnecessary waste of large flow, which often fails to meet customer needs.

[0004] The invention patent with application number CN 201410459068.6 and subject name is electromagnetic actuator for electromagnetic valve, valve group with at least one electromagnetic valve and module arrangement. Its technical solution discloses "an electromagnetic actuator for an electromagnetic valve, comprising an electromagnetic coil and a first electrical connector, which is configured to receive a control signal for determining a switch position of the electromagnetic actuator, and a second electrical connector directly disposed on the electromagnetic actuator and separated from the first electrical connector, wherein the electromagnetic coil and the first electrical connector are coupled via an electrical connection disconnected at the second electrical connector, wherein the electromagnetic actuator further comprises an external switch, which is disposed outside the housing of the electromagnetic actuator and coupled to the second electrical connector, so that the second electrical connector forms a series circuit with the electromagnetic coil and the first electrical connector, wherein the external switch is configured to close or disconnect the electrical connection between the first electrical connector and the electromagnetic coil according to its switch position and independently of the control signal, wherein the control signal determines the switch position of the electromagnetic actuator received via the first electrical connector".

[0005] Taking the above-mentioned invention patent as an example, although it mentions an electromagnetic actuator, the technical problem it solves is: safely disconnecting a single valve or putting it in a reliable operating state, which is different from the technical problem of the present invention.

[0006] Therefore, further improvements are made to the above problems. Summary of the invention

[0007] The main purpose of the present invention is to provide an electromagnetic control actuator for a pulse valve, which opens the switch of the valve core of the pulse valve through the linkage between the central axis rack and the rotating shaft gear, and accurately adjusts the opening angle of the valve core of the pulse valve through the adjustment structure. Its special adjustment structure provides a convenient and reliable online adjustment function without stopping the machine. It has the advantages of stable structure, high safety, easy adjustment and high precision.

[0008] To achieve the above purpose, the present invention provides an electromagnetic control actuator for a pulse valve, which is used to adjust the switch angle of the pulse valve, and includes a main body and an adjusting device, wherein the main body is located above the adjusting device and the main body and the adjusting device are linked (so that the adjusting device is adjusted), wherein:

[0009] The main body includes a fixed iron core, a moving iron core and a junction box (powered on to make the moving iron core move), and the moving iron core is partially built into the fixed iron core;

[0010] The adjusting device includes a (claw-type positioning) center axis rack, a rotating shaft gear, a first adjusting structure and a second adjusting structure. The center axis rack is fixedly connected to the moving iron core and is drivingly connected to the rotating shaft gear (the center axis rack serves as an active structure and moves up and down as the moving iron core moves up and down, and the rotating shaft gear serves as a driven structure and rotates when the center axis rack moves up and down, thereby causing the valve core of the pulse valve connected to one end of the rotating gear to open and close, thereby realizing a switching effect). The first adjusting structure and the second adjusting structure are used to limit the (up and down) movement distance range of the center axis rack (thereby limiting the number of rotations of the rotating shaft gear, and then adjusting the opening and closing angle of the valve core of the pulse valve according to customer needs).

[0011] As a further preferred technical solution of the above technical solution, one end of the central axis rack away from the moving iron core is located between the first adjustment structure and the second adjustment structure, and one end of the central axis rack away from the moving iron core is provided with a first limiting portion and a second limiting portion, the first adjusting structure is used to limit the first limiting portion (upper limit), and the second adjusting structure is used to limit the second limiting portion (lower limit).

[0012] As a further preferred technical solution of the above technical solution, the first adjustment structure includes a first adjustment screw and a first limiting nut, the first limiting nut is sleeved on the first adjustment screw, and the first adjustment screw is used to adjust the position of the first limiting nut on the first adjustment screw (through bottom rotation) (thereby limiting the maximum height to which the first limiting part can rise);

[0013] The second adjustment structure includes a second adjusting screw and a second limiting nut, the second limiting nut is sleeved on the second adjusting screw, and the second adjusting screw is used to adjust (through bottom rotation) the position of the second limiting nut on the second adjusting screw (thereby limiting the minimum height to which the second limiting part can descend).

[0014] As a further preferred technical solution of the above technical solution, the adjustment device also includes a guide wheel, and the guide wheel abuts against the central axis rack (to prevent the central axis rack from shaking left and right and affecting stability).

[0015] As a further preferred technical solution of the above technical solution, the adjusting device also includes a (first screw and second screw) locking structure, the locking structure includes a conical locking nut, a first steel ball, a second steel ball and a (preferably hexagonal) bolt, the conical locking nut is sleeved on the bolt, the first steel ball is located between the first adjusting screw and the conical locking nut, and the second steel ball is located between the second adjusting screw and the conical locking nut (after the first adjusting screw and the second adjusting screw have adjusted the positions of their respective limit nuts, in order to prevent the two adjusting screws from loosening due to vibration during operation, thereby causing the position of the limit nut to loosen, the conical locking nut is adjusted by adjusting the bolt, so that when the conical locking nut moves, the first steel ball in contact with it will press against the first screw, and the second steel ball in contact with it will press against the second screw, thereby fixing the positions of the first screw and the second screw to prevent a series of influences caused by loose rotation).

[0016] As a further preferred technical solution of the above technical solution, the adjusting device also includes a valve seat, the shaft gear passes through the valve seat, and the valve seat is provided with a protective isolation plate (used to isolate the inner cavity and protect the internal structure. When it is removed, the internal adjustment principle of the adjusting device can be understood, such as how to limit the position by a limit nut, and it can also be removed for lubrication and maintenance, etc., and it can limit the first clamping plate and the second clamping plate mentioned below from falling off).

[0017] As a further preferred technical solution of the above technical solution, the first adjustment structure is also provided with a first clamping plate, and the first clamping plate is used to limit the first adjusting screw, and the second adjustment structure is also provided with a second clamping plate, and the second clamping plate is used to limit the second adjusting screw (the first clamping plate is sleeved on the first adjusting screw, and the second clamping plate is sleeved on the second adjusting screw. The first clamping plate and the clamping plate make the first adjusting screw and the second adjusting screw only rotate on their own during adjustment rotation, and will not move up and down, so that their respective limit nuts move up and down).

[0018] As a further preferred technical solution of the above technical solution, the main body also includes a coil (surrounding the fixed iron core), a fixed iron core magnetic isolation ring (installed on the fixed iron core), a compression spring, a spring top seat and a spring base, the compression spring is located between the spring top seat and the spring base, and the compression spring, the spring top seat and the spring base are all sleeved on the central axis rack. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of an electromagnetic control actuator for a pulse valve of the present invention.

[0020] Figure 2It is a structural schematic diagram of an electromagnetic control actuator for a pulse valve of the present invention (part is hidden).

[0021] Figure 3 is along Figure 2 Cross-sectional view in CC direction.

[0022] Figure 4 It is a structural schematic diagram of an electromagnetic control actuator for a pulse valve of the present invention.

[0023] Figure 5 is along Figure 4 Cross-section view in EE direction.

[0024] Figure 6 It is a structural schematic diagram of an electromagnetic control actuator for a pulse valve of the present invention.

[0025] Figure 7 is along Figure 6 Cross-section along DD direction.

[0026] Figure 8 It is a structural schematic diagram of a central axis rack of an electromagnetic control actuator for a pulse valve of the present invention.

[0027] The reference numerals in the accompanying drawings include: 100, main body; 110, fixed iron core; 120, moving iron core; 130, junction box; 140, coil; 150, fixed iron core magnetic isolation ring; 160, compression spring; 170, spring top seat; 180, spring base; 200, adjusting device; 210, central axis rack; 211, first limiting portion; 212, second limiting portion; 220, rotating shaft rack; 230, first adjusting structure; 231, first adjusting screw; 232, first limiting nut; 233, first clamping plate; 240, second adjusting structure; 241, second adjusting screw; 242, second limiting nut; 243, second clamping plate; 260, locking structure; 261, conical locking nut; 262, first steel ball; 263, second steel ball; 264, bolt; 270, valve seat; 271, protective isolation plate. DETAILED DESCRIPTION

[0028] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0029] The present invention discloses an electromagnetically controlled actuator for a pulse valve. The specific embodiments of the invention are further described below in conjunction with preferred embodiments.

[0030] In the embodiments of the present invention, those skilled in the art will note that the moving iron core, the fixed iron core, the junction box, etc., involved in the present invention may be regarded as prior art.

[0031] Preferred embodiments.

[0032] The present invention discloses an electromagnetically controlled actuator for a pulse valve, which is used to adjust the switch angle of the pulse valve, and comprises a main body 100 and an adjusting device 200, wherein the main body 100 is located above the adjusting device 200 and the main body 100 and the adjusting device 200 are linked (so that the adjusting device is adjusted), wherein:

[0033] The main body 100 includes a fixed iron core 110, a moving iron core 120 and a junction box 130 (powered on to make the moving iron core move), and the moving iron core 120 is partially built in the fixed iron core 110;

[0034] The adjusting device 200 includes a (claw-type positioning) center axis rack 210, a rotating shaft gear 220, a first adjusting structure 230 and a second adjusting structure 240. The center axis rack 210 is fixedly connected to the moving iron core 120 and is drivingly connected to the rotating shaft gear 220 (the center axis rack serves as an active structure and moves up and down as the moving iron core moves up and down, and the rotating shaft gear serves as a driven structure and meshes and rotates as the center axis rack moves up and down, thereby causing the valve core of the pulse valve connected to one end of the rotating gear to open and close, thereby realizing a switching effect). The first adjusting structure 230 and the second adjusting structure 240 are used to limit the (up and down) movement distance range of the center axis rack 210 (thereby limiting the number of rotations of the rotating shaft gear, and then adjusting the opening and closing angle of the valve core of the pulse valve according to customer needs).

[0035] Specifically, one end of the central axis rack 210 away from the moving iron core 120 is located between the first adjustment structure 230 and the second adjustment structure 240, and the one end of the central axis rack 210 away from the moving iron core 120 is provided with a first limiting portion 211 and a second limiting portion 212, the first adjusting structure 230 is used to limit the first limiting portion 211 (upper limit), and the second adjusting structure 240 is used to limit the second limiting portion 212 (lower limit).

[0036] More specifically, the first adjustment structure 230 includes a first adjustment screw 231 and a first limiting nut 232, wherein the first limiting nut 232 is sleeved on the first adjustment screw 231, and the first adjustment screw 231 is used to adjust (by bottom rotation) the position of the first limiting nut 232 on the first adjustment screw 231 (thereby limiting the maximum height to which the first limiting portion can rise);

[0037] The second adjustment structure 240 includes a second adjustment screw 241 and a second limit nut 242. The second limit nut 242 is sleeved on the second adjustment screw 241. The second adjustment screw 241 is used to adjust (through bottom rotation) the position of the second limit nut 242 on the second adjustment screw 241 (thereby limiting the minimum height to which the second limit portion can descend).

[0038] Preferably, the first limiting nut 232 and the second limiting nut 242 limit the up and down movement distance of the central axis rack 210, thereby limiting the number of rotations of the rotating shaft gear 220, and finally achieving the adjustment of the opening and closing angle of the valve core of the pulse valve according to customer needs.

[0039] Furthermore, the adjustment device 200 further includes a guide wheel, which abuts against the central axis rack 210 (to prevent the central axis rack from shaking left and right and affecting stability).

[0040] Furthermore, the adjusting device 200 further includes a (first screw and second screw) locking structure 260, the locking structure 260 includes a conical locking nut 261, a first steel ball 262, a second steel ball 263 and a (preferably hexagon socket) bolt 264, the conical locking nut 261 is sleeved with the bolt 264, the first steel ball 262 is located between the first adjusting screw 231 and the conical locking nut 261, the second steel ball 263 is located between the second adjusting screw 242 and the conical locking nut 264, and the second steel ball 263 is located between the second adjusting screw 242 and the conical locking nut 264. Between the locking nuts 261 (after the first adjusting screw and the second adjusting screw have adjusted the positions of their respective limit nuts, in order to prevent the two adjusting screws from loosening due to vibration during movement, thereby causing the position of the limit nuts to loosen, the conical locking nut is adjusted by adjusting the bolt, so that when the conical locking nut moves, the first steel ball in contact with it will press against the first screw, and the second steel ball in contact with it will press against the second screw, thereby fixing the positions of the first screw and the second screw to prevent a series of effects caused by loose rotation).

[0041] Preferably, the adjusting device 200 also includes a valve seat 270, the rotating shaft gear 220 passes through the valve seat 270, and the valve seat 270 is provided with a protective isolation plate 271 (used to isolate the inner cavity and protect the internal structure. When it is removed, the internal adjustment principle of the adjusting device can be understood, such as how to limit the position through the limit nut, and it can also be removed for lubrication, inspection and maintenance, etc., and it can limit the first clamping plate and the second clamping plate from falling off).

[0042] Preferably, the first adjustment structure 230 is further provided with a first clamping plate 233, and the first clamping plate 233 is used to limit the first adjustment screw 231, and the second adjustment structure 240 is further provided with a second clamping plate 243

[0043] The second clamping plate 243 is used to limit the second adjusting screw 241 (the first clamping plate is sleeved on the first adjusting screw, and the second clamping plate is sleeved on the second adjusting screw. The first clamping plate and the clamping plate make the first adjusting screw and the second adjusting screw only rotate during adjustment rotation, and will not move up and down, so that their respective limit nuts move up and down).

[0044] Preferably, the main body 100 also includes a coil 140 (surrounding the fixed iron core), a fixed iron core magnetic isolation ring 150 (installed on the fixed iron core), a compression spring 160, a spring top seat 170 and a spring base 180, the compression spring 160 is located between the spring top seat 170 and the spring base 180, and the compression spring 160, the spring top seat 170 and the spring base 180 are all sleeved on the central axis rack 210.

[0045] It is worth mentioning that the technical features such as the moving iron core, the fixed iron core and the junction box involved in the patent application of the present invention should be regarded as the prior art. The specific structure, working principle and possible control method and spatial layout method of these technical features can be selected by conventional methods in the field, and should not be regarded as the inventive point of the patent of the present invention. The patent of the present invention will not be further elaborated.

[0046] For those skilled in the art, it is still possible to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electromagnetically controlled actuator for a pulse valve, used to adjust the switch angle of the pulse valve, characterized in that: It comprises a main body and an adjusting device, wherein the main body is located above the adjusting device and the main body and the adjusting device are linked, wherein: The main body comprises a fixed iron core, a moving iron core and a junction box, and the moving iron core is partially built into the fixed iron core; The adjusting device comprises a central axis rack, a rotating shaft gear, a first adjusting structure and a second adjusting structure, wherein the central axis rack is fixedly connected to the moving iron core and the central axis rack is drivingly connected to the rotating shaft gear, and the first adjusting structure and the second adjusting structure are used to limit the movement distance range of the central axis rack; One end of the central axis rack away from the moving iron core is located between the first adjustment structure and the second adjustment structure, and one end of the central axis rack away from the moving iron core is provided with a first limiting portion and a second limiting portion, the first adjustment structure is used to limit the first limiting portion, and the second adjustment structure is used to limit the second limiting portion; The first adjustment structure includes a first adjustment screw and a first limiting nut, the first limiting nut is sleeved on the first adjustment screw, and the first adjustment screw is used to adjust the position of the first limiting nut on the first adjustment screw; The second adjustment structure includes a second adjustment screw and a second limiting nut, the second limiting nut is sleeved on the second adjustment screw, and the second adjustment screw is used to adjust the position of the second limiting nut on the second adjustment screw; The main body also includes a coil, a fixed iron core magnetic isolation ring, a compression spring, a spring top seat and a spring base. The compression spring is located between the spring top seat and the spring base. The compression spring, the spring top seat and the spring base are all sleeved on the central axis rack.

2. The electromagnetic control actuator for a pulse valve according to claim 1, characterized in that: The adjusting device also includes a guide wheel, which abuts against the central axis rack.

3. An electromagnetically controlled actuator for a pulse valve according to any one of claims 1 to 2, characterized in that: The adjusting device also includes a locking structure, which includes a conical locking nut, a first steel ball, a second steel ball and a bolt. The conical locking nut is sleeved on the bolt, the first steel ball is located between the first adjusting screw and the conical locking nut, and the second steel ball is located between the second adjusting screw and the conical locking nut.

4. The electromagnetic control actuator for a pulse valve according to claim 1, characterized in that: The regulating device also includes a valve seat, the rotating shaft gear passes through the valve seat, and the valve seat is provided with a protective isolation plate.

5. The electromagnetic control actuator for a pulse valve according to claim 1, characterized in that: The first adjustment structure is further provided with a first clamping plate, and the first clamping plate is used to limit the first adjustment screw. The second adjustment structure is further provided with a second clamping plate, and the second clamping plate is used to limit the second adjustment screw.

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