Valve driven by motor

Abstract

The invention relates to the technical field of valves, in particular to a motor-driven valve. According to the technical scheme, the valve driven by the motor comprises a protection box, a linkage control assembly, a parameter display screen, a valve plate and a piston rod; a stepping motor is arranged to drive a first connecting rod to drive a first gear to rotate, to be in meshing transmission with a rack, to control the rack to ascend and descend, and to eject and descend a piston rod, so that a valve blade O-shaped ring in a vacuum state is controlled, and impact and pressure are reduced to the maximum extent; according to the motor driving mode, emergency braking can be achieved when an accident happens, when the motor is overloaded due to foreign matter inclusion, the valve plate is made to retreat, it is guaranteed that equipment and a valve are not damaged, and when the piston rod drives the valve plate to descend, the U-shaped frame ascends and descends along the sliding groove, and observation can be conducted through scales; whether the horizontal state is deviated or not can be seen through the horizontal ruler, so that the speed of each interval can be controlled, the production capacity is increased, and the service life of the whole structure is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of valves, and in particular to a valve driven by a motor. Background Art

[0002] Foreign companies VAT and SMC currently occupy more than 90% of the sliding gate valve market in the SEMI, LCD, LED, and SOLAR industries. However, the technological development of related industries is limited to the use of compressed air with piston-cylinder liner as the driving force, which is relatively unable to keep up with the engineering speed brought about by the development of robot technology. In addition, with the development of automation systems, equipment runs 24 hours a day and production is gradually increasing.

[0003] In the cylinder drive method using compressed air, if the amount of compressed air is increased to increase the operating speed, the O-ring sealing blades of the vacuum valve will accumulate strong impact pressure before closing. The O-ring made of mixed rubber is affected by the impact stress and is prone to produce particles in the vacuum chamber, which will advance the equipment maintenance cycle, shorten the operation time, and lead to a decrease in production.

[0004] Therefore, in the above-mentioned cylinder drive method using compressed air, if the amount of compressed air is increased to increase the operating speed, it will cause the vacuum valve O-ring sealing blades to accumulate strong impact pressure before closing. The O-ring made of mixed rubber is affected by the impact stress and is prone to produce particles in the vacuum chamber. A motor-driven valve can be designed. Summary of the invention

[0005] In order to overcome the problem that in the cylinder drive method using compressed air, if the amount of compressed air is increased to increase the operating speed, the O-ring sealing blades of the vacuum valve will accumulate strong impact pressure before closing, which will advance the equipment maintenance cycle, shorten the operation time, and lead to a decrease in production.

[0006] The technical solution of the present invention is: a motor-driven valve, including a protection box, a linkage control component, a parameter display screen, a valve plate and a piston rod; the protection box is used to protect the internal structure to prevent external interference with the working state, a parameter display screen is provided on one side of the protection box to display the internal motor operation parameters, a valve plate for supporting and connecting to bear pressure is provided above the protection box, two groups of piston rods are symmetrically provided at the bottom of the valve plate for penetrating into the interior of the protection box for motor control to complete rapid driving operations, and linkage control components are provided on both sides of the protection box for auxiliary support and linkage to the valve plate to maintain the overall support performance.

[0007] Preferably, a stepper motor is provided to drive the first connecting rod to drive the first gear to rotate, meshing with the rack for transmission, controlling the rise and fall of the rack, and ejecting and lowering the piston rod, thereby controlling the valve blade O-ring that maintains a vacuum state, minimizing impact and pressure, and being able to drive quickly at the same time. A second gear is provided to guide the meshing protection as the rack rises and falls.

[0008] Preferably, a lifting chamber for storing the piston rod for movement is provided inside the protection box, a shock-absorbing base is provided at the bottom of the protection box, limit ring frames are provided at the edges of both sides of the bottom of the protection box, a positioning hole is provided at the center of the limit ring frame, protection grooves are symmetrically provided on the side of the protection box away from the parameter display screen, and a vacuum vulcanization sealing ring is provided inside the valve plate.

[0009] Preferably, a sliding groove is provided inside the protection groove, and multiple groups of scales are linearly provided on both sides of the protection groove. A protection ring that is sleeved on the protection piston rod is symmetrically provided on the top of the protection box, and multiple groups of pressure dividers are circumferentially provided on the inner side of the protection ring. A display meter is electrically provided at the outer end of the pressure divider, and a limit box is provided at the bottom inner side of the protection box, and a position sensor is provided inside the limit box. An integrated box is provided inside the protection box, and movable grooves are symmetrically provided on the inner side of the integrated box, and a movable hole is provided in the center of the movable groove.

[0010] Preferably, the linkage control component includes a first rotating disk and a second rotating disk, the first rotating disk is linearly arranged below the second rotating disk, a transmission belt is sleeved on the first rotating disk and the second rotating disk, a steering indicator disk is fixedly installed on the outer end of the second rotating disk, and a fixed block fixedly connected to the protective box is provided above the second rotating disk.

[0011] Preferably, a top column is fixed at the outer end of the steering wheel, a limiting sleeve is provided at the center of the fixed block, a floating column is provided at the center of the limiting sleeve, and a Z-shaped bracket is fixedly connected to the top of the floating column.

[0012] Preferably, a plurality of telescopic top sleeves are linearly sleeved at one end of the Z-shaped bracket away from the floating column, a top plate is provided on the top of the telescopic top sleeve, a shock-absorbing spring is provided at the bottom of the telescopic top sleeve, and a rubber damper is provided inside the shock-absorbing spring.

[0013] Preferably, racks are provided below the two groups of piston rods, a retaining sleeve is fixedly connected between the racks and the piston rods, and the two groups of racks are meshed with a first gear and a second gear in sequence from bottom to top.

[0014] Preferably, a first connecting rod is connected between the two groups of first gears, a stepper motor is provided at the center of the first connecting rod, a cable is linearly provided on the stepper motor, a second connecting rod is provided between the two groups of second gears, the outer walls of the first gear and the second gear are coated with an anti-slip coating, a second conduction shaft is provided at the end of the second gear away from the second connecting rod, a first conduction shaft is provided at the end of the first gear away from the first connecting rod, and a motor controller electrically connected to the stepper motor is provided at the outer end of the first conduction shaft.

[0015] Preferably, both sets of racks are provided with a U-shaped frame on one side away from the first gear and the second gear, and both ends of the U-shaped frame are provided with a balance block fixedly connected to the racks, and multiple sets of horizontal rulers are linearly provided on the balance block.

[0016] Beneficial effects of the present invention: 1. According to the previous cylinder drive method using compressed air, if the amount of compressed air is increased to increase the running speed, the vacuum valve O-ring sealing blade will accumulate strong impact pressure before closing. A stepper motor is set to drive the first connecting rod to drive the first gear to rotate, mesh with the rack for transmission, control the rack to rise and fall, and push out and fall the piston rod, so as to control the valve blade O-ring that maintains the vacuum state, minimize the impact and pressure, and can be driven quickly at the same time. The second gear is set to guide the meshing protection as the rack rises and falls. The motor drive method can not only perform emergency braking in the event of an accident, but also make the valve plate retreat when the motor is overloaded due to foreign matter, so as to ensure that the equipment and valve are not damaged. When the piston rod drives the valve plate to descend, the top plate squeezes the telescopic top sleeve and shrinks in turn, and is reversely supported and maintained by the internal shock-absorbing spring. As the inner rack rises, the U-shaped frame rises and falls along the sliding groove, which can be observed by the scale, and the level ruler can be used to see whether it is biased towards the horizontal state. The speed of each interval can be controlled, thereby increasing production and improving the service life of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the valve of the present invention; Figure 2 It is a schematic diagram of a protection box of the valve of the present invention; Figure 3 It is a schematic diagram of the protection box of the valve of the present invention from another angle; Figure 4 It is a schematic diagram of the linkage control assembly of the valve of the present invention; Figure 5 It is a schematic diagram of the piston rod transmission of the valve of the present invention; Figure 6 A schematic diagram of a rack of the valve of the present invention; Figure 7 It is a schematic diagram of the rack of the valve of the present invention from another angle.

[0018] Description of the accompanying drawings: 1. protection box; 2. linkage control assembly; 3. parameter display screen; 4. valve plate; 5. piston rod; 101. shock-absorbing base; 102. lifting chamber; 103. protection ring; 104. voltage divider; 105. protection groove; 106. sliding groove; 107. scale; 108. limit ring frame; 109. integrated box; 110. movable hole; 111. movable groove; 112. display table; 113. positioning hole; 114. limit box; 115. position sensor; 201. first rotating disk; 202. second rotating disk; 203. transmission belt; 204. top disk; 205. steering indicator The disc; 206, the top column; 207, the fixed block; 208, the limiting sleeve; 209, the floating column; 210, the Z-shaped bracket; 211, the shock-absorbing spring; 212, the telescopic top sleeve; 401, the vacuum vulcanized sealing ring; 501, the retaining sleeve; 502, the rack; 503, the first gear; 504, the first connecting rod; 505, the stepping motor; 506, the cable; 507, the second gear; 508, the anti-slip coating; 509, the second connecting rod; 510, the second transmission shaft; 511, the motor controller; 512, the first transmission shaft; 513, the balance block; 514, the U-shaped frame; 515, the level ruler. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0020] See also Figure 1-2 The present invention provides an embodiment: a motor-driven valve, comprising a protection box 1, a linkage control component 2, a parameter display screen 3, a valve plate 4 and a piston rod 5; the protection box 1 is used to protect the internal structure to prevent external interference with the working state, the protection box 1 is provided with a parameter display screen 3 on one side for displaying the internal motor operation parameters, the protection box 1 is provided with a valve plate 4 for supporting and connecting to bear pressure above, the bottom of the valve plate 4 is symmetrically provided with two groups of piston rods 5 that penetrate into the protection box 1 to control the motor to complete the rapid driving operation, and the protection box 1 is provided with a linkage control component 2 on both sides for auxiliary support and linkage to the valve plate 4 to maintain the overall support performance.

[0021] See also Figure 2-4In this embodiment, a lifting chamber 102 for storing the piston rod 5 for movement is provided inside the protection box 1, a shock-absorbing base 101 is provided at the bottom of the protection box 1, and limiting ring frames 108 are provided at the edges of both sides of the bottom of the protection box 1. A positioning hole 113 is provided at the center of the limiting ring frame 108. A protection groove 105 is symmetrically provided on the side of the protection box 1 away from the parameter display screen 3, a vacuum vulcanized sealing ring 401 is provided inside the valve plate 4, a sliding groove 106 is provided inside the protection groove 105, and both sides of the protection groove 105 are A plurality of groups of scales 107 are linearly provided, a protection ring 103 which is sleeved to protect the piston rod 5 is symmetrically provided on the top of the protection box 1, a plurality of groups of pressure dividers 104 are circumferentially provided on the inner side of the protection ring 103, a display meter 112 is electrically provided on the outer end of the pressure divider 104, a limit box 114 is provided on the bottom inner side of the protection box 1, a position sensor 115 is provided inside the limit box 114, an integrated box 109 is provided inside the protection box 1, movable grooves 111 are symmetrically provided on the inner side of the integrated box 109, and a movable hole 110 is provided at the center of the movable groove 111.

[0022] See also Figure 3-5 In this embodiment, the linkage control assembly 2 includes a first rotating disk 201 and a second rotating disk 202. The first rotating disk 201 is linearly arranged below the second rotating disk 202. The first rotating disk 201 and the second rotating disk 202 are sleeved with a transmission belt 203. A turn signal disk 205 is fixedly installed at the outer end of the second rotating disk 202. A fixed block 207 fixedly connected to the protection box 1 is arranged above the second rotating disk 202. A top column 206 is fixed at the outer end of the turn signal disk 205. A limiting sleeve 208 is arranged at the center of the fixing block 207. A floating column 209 is arranged at the center of the limiting sleeve 208. A Z-shaped bracket 210 is fixedly connected to the top of the floating column 209.

[0023] See also Figure 4-5 In this embodiment, a Z-shaped bracket 210 is linearly sleeved with multiple groups of telescopic top sleeves 212 at one end away from the floating column 209, a top plate 204 is provided on the top of the telescopic top sleeve 212, a shock-absorbing spring 211 is provided at the bottom of the telescopic top sleeve 212, and a rubber damper is provided inside the shock-absorbing spring 211. Racks 502 are provided under the two groups of piston rods 5, and a retaining sleeve 501 is fixedly connected between the racks 502 and the piston rod 5. The two groups of racks 502 are meshed with a first gear 503 and a second gear 507 from bottom to top in sequence.

[0024] See also Figure 6-7In this embodiment, a first connecting rod 504 is connected between the two groups of first gears 503, a stepper motor 505 is provided at the center of the first connecting rod 504, a cable 506 is linearly provided on the stepper motor 505, a second connecting rod 509 is provided between the two groups of second gears 507, the outer walls of the first gear 503 and the second gear 507 are coated with an anti-slip coating 508, a second transmission shaft 510 is provided at the end of the second gear 507 away from the second connecting rod 509, a first transmission shaft 512 is provided at the end of the first gear 503 away from the first connecting rod 504, a motor controller 511 electrically connected to the stepper motor 505 is provided at the outer end of the first transmission shaft 512, and a U-shaped frame 514 is provided on the side of the two groups of racks 502 away from the first gear 503 and the second gear 507, and a balance block 513 fixedly connected to the rack 502 is provided at both ends of the U-shaped frame 514, and a plurality of levels 515 are linearly provided on the balance block 513.

[0025] When working, the motor controller 511 is used to control the operation of the stepper motor 505, and the relevant parameters are transmitted to the parameter display screen 3 in real time through the cable 506 for intuitive observation. The stepper motor 505 drives the first connecting rod 504 to rotate, thereby driving the first gear 503 to engage with the rack 502. At the same time, this action also drives the first transmission shaft 512, causing the first rotating disk 201 to start rotating. Through the connection of the transmission belt 203, the second rotating disk also rotates accordingly, and then through the second transmission shaft 510 and the second connecting rod 509, the second gear 507 is engaged with the rack 502 to achieve the rise and fall of the rack 502. In this process, the piston rod 5 is ejected. When the piston rod 5 is ejected and lowered, the retaining sleeve 501 contacts the pressure divider 104 inside the protective ring 103 for monitoring, and the rack 502 is lowered from the shelf and enters the position sensor 115 in the limit box 114 for induction detection, driving the valve plate 4 to rise or fall; Each time the steering wheel 205 rotates, the top column 206 pushes the floating column 209 to make the Z-shaped bracket 210 rise. At the same time, the top plate 204 supports and protects the valve plate 4. When the piston rod 5 drives the valve plate 4 to descend, the top plate 204 squeezes the telescopic top sleeve 212 to shrink it in turn, and reversely supports it through the internal shock-absorbing spring 211 to maintain the stability of the system; With each rise of the rack 502, the U-shaped frame 514 will rise or fall along the sliding groove 106, and its moving distance can be observed through the scale 107. In addition, the level ruler 515 can be used to detect whether the entire system remains horizontal to ensure the accuracy and stability of the operation.

[0026] Through the above steps, a stepper motor 505 is set to drive the first connecting rod 504 to drive the first gear 503 to rotate, mesh with the rack 502 for transmission, control the rack 502 to rise and fall, and push out and lower the piston rod 5, so as to control the valve blade O-ring that maintains the vacuum state, minimize the impact and pressure, and can be driven quickly at the same time, and a second gear 507 is set to guide the meshing protection when the rack 502 rises and falls.

[0027] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the spirit of the present invention.

Claims

1. A motor-driven valve, comprising a protection box (1); characterized in that: It also includes a linkage control component (2), a parameter display screen (3), a valve plate (4) and a piston rod (5); a protection box (1) for protecting the internal structure to prevent external interference with the working state, a parameter display screen (3) for displaying the internal motor operation parameters is provided on one side of the protection box (1), a valve plate (4) for supporting and connecting to bear pressure is provided above the protection box (1), two groups of piston rods (5) are symmetrically provided at the bottom of the valve plate (4) to penetrate into the interior of the protection box (1) to control the motor and complete the rapid driving operation, and linkage control components (2) are provided on both sides of the protection box (1) to assist in supporting and linking the valve plate (4) to maintain the overall support performance.

2. A motor-driven valve according to claim 1, characterized in that: The protection box (1) is provided with a lifting chamber (102) for storing the piston rod (5) for movement, the bottom of the protection box (1) is provided with a shock-absorbing base (101), both sides of the bottom edge of the protection box (1) are provided with a limit ring frame (108), the center of the limit ring frame (108) is provided with a positioning hole (113), the protection box (1) is symmetrically provided with a protection groove (105) on a side away from the parameter display screen (3), and the valve plate (4) is provided with a vacuum vulcanized sealing ring (401) inside.

3. A motor-driven valve according to claim 2, characterized in that: A sliding groove (106) is provided inside the protection groove (105), and multiple groups of scales (107) are linearly provided on both sides of the protection groove (105). A protection ring (103) sleeved with a protection piston rod (5) is symmetrically provided on the top of the protection box (1), and multiple groups of pressure dividers (104) are circumferentially provided inside the protection ring (103). A display meter (112) is electrically provided at the outer end of the pressure divider (104). A limit box (114) is provided at the bottom inside the protection box (1), and a position sensor (115) is provided inside the limit box (114). An integrated box (109) is provided inside the protection box (1), and movable grooves (111) are symmetrically provided on the inside of the integrated box (109), and a movable hole (110) is provided at the center of the movable groove (111).

4. A motor-driven valve according to claim 1, characterized in that: The linkage control component (2) comprises a first rotating disk (201) and a second rotating disk (202), wherein the first rotating disk (201) is linearly arranged below the second rotating disk (202), a transmission belt (203) is sleeved on the first rotating disk (201) and the second rotating disk (202), a steering indicator disk (205) is fixedly mounted on the outer end of the second rotating disk (202), and a fixing block (207) fixedly connected to the protection box (1) is provided above the second rotating disk (202).

5. A motor-driven valve according to claim 4, characterized in that: A top column (206) is fixed to the outer end of the steering wheel (205), a limiting sleeve (208) is provided at the center of the fixed block (207), and a floating column (209) is provided at the center of the limiting sleeve (208). A Z-shaped bracket (210) is fixedly connected to the top of the floating column (209).

6. A motor-driven valve according to claim 5, characterized in that: A plurality of groups of telescopic top sleeves (212) are linearly sleeved on one end of the Z-shaped bracket (210) away from the floating column (209), a top plate (204) is provided on the top of the telescopic top sleeve (212), a shock absorbing spring (211) is provided on the bottom of the telescopic top sleeve (212), and a rubber damper is provided inside the shock absorbing spring (211).

7. The motor-driven valve according to claim 1, characterized in that: Racks (502) are provided below the two groups of piston rods (5), a retaining sleeve (501) is fixedly connected between the racks (502) and the piston rods (5), and the two groups of racks (502) are meshed with a first gear (503) and a second gear (507) in sequence from bottom to top.

8. A motor-driven valve according to claim 7, characterized in that: A first connecting rod (504) is connected between the two groups of first gears (503), a stepper motor (505) is provided at the center of the first connecting rod (504), a cable (506) is linearly provided on the stepper motor (505), a second connecting rod (509) is provided between the two groups of second gears (507), the outer walls of the first gear (503) and the second gear (507) are coated with an anti-slip coating (508), a second transmission shaft (510) is provided at the end of the second gear (507) away from the second connecting rod (509), a first transmission shaft (512) is provided at the end of the first gear (503) away from the first connecting rod (504), and a motor controller (511) electrically connected to the stepper motor (505) is provided at the outer end of the first transmission shaft (512).

9. A motor-driven valve according to claim 7, characterized in that: A U-shaped frame (514) is provided on one side of the two sets of racks (502) away from the first gear (503) and the second gear (507). Both ends of the U-shaped frame (514) are provided with a balance block (513) fixedly connected to the racks (502). A plurality of sets of level rulers (515) are linearly provided on the balance block (513).

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