CN115306914A

CN115306914A - Electric slide valve positioned by steel balls

Info

Publication number: CN115306914A
Application number: CN202210723317.2A
Authority: CN
Inventors: 范冉; 边宁; 陶乃绘; 楚凯楠; 王延梅; 张慧; 马晓晖
Original assignee: State Grid Corp of China SGCC; Jining Power Supply Co of State Grid Shandong Electric Power Co Ltd; Jining Power Supply Co
Current assignee: State Grid Corp of China SGCC; Jining Power Supply Co of State Grid Shandong Electric Power Co Ltd; Jining Power Supply Co
Priority date: 2022-06-24
Filing date: 2022-06-24
Publication date: 2022-11-08

Abstract

The invention discloses a steel ball positioning electric slide valve, which comprises: the valve plate is connected with a driving device through a piston and a sliding block, and the driving device is connected with the center of the rotary table; and a positioning device is arranged on the piston. The valve is quickly opened or closed through the positioning device, so that the response speed of the electric valve is high, and the working state is stable.

Description

Electric slide valve positioned by steel balls

Technical Field

The invention relates to an electric slide valve for positioning steel balls, and belongs to the technical field of electric valves.

Background

The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.

The slide valve is a flow divider which utilizes the slide of a valve core (plunger piston and valve clack) on a sealing surface to change the position of a fluid inlet and outlet channel so as to control the flow direction of fluid. Slide valves are commonly used in steam engines, hydraulic and pneumatic devices, to allow the movement mechanism to achieve a predetermined direction and stroke of motion or to achieve automatic continuous operation. Most of the existing slide valves are pneumatic and electric, the pneumatic slide valves are high in response speed, but certain wind pressure needs to be applied when the pneumatic slide valves are used, so that the valves can be opened or closed, and the pneumatic slide valves cannot be normally used under the condition of lacking of wind sources. In order to provide good sealing performance for the electric sliding valve, a sufficient response speed is required when the valve needs to be opened or closed, and sufficient stability is required when the valve is in an opening or closing position so as to ensure that the working state of the valve is stable, the problem needs to be solved by the invention of the electric sliding valve.

Disclosure of Invention

Aiming at the problems, the invention provides the steel ball positioning electric slide valve, so that the electric slide valve has high response speed, better positioning and stable working state.

In order to realize the purpose, the invention adopts the following technical scheme:

the invention provides a steel ball positioning electric slide valve, which comprises: the valve comprises a valve body, wherein a valve plate is arranged on the right side of the valve body, the valve plate is connected with a driving device through a piston and a sliding block, and the driving device is connected with the center of a turntable; and a positioning device is arranged on the piston.

Furthermore, a push head is arranged on the valve plate and connected with a piston through a first push rod, and the piston pushes the first push rod to drive the valve plate to move.

Further, positioner sets up in the upper and lower both sides of piston, includes: positioning steel balls, positioning springs and fixing screws; the valve body is provided with grooves which are symmetrically arranged on the left side and the right side of the positioning device.

Furthermore, the groove is a semicircular groove, and the diameter of the groove is the same as that of the positioning steel ball; a protruding part is arranged between the left groove and the right groove and arranged on the inner wall of the valve body, a sliding groove is arranged in the protruding part, and a positioning steel ball is attached to the groove surface of the sliding groove.

Furthermore, an elastic piece is arranged between the piston and the sliding block; the left side of the sliding block is connected with the square part through a second push rod.

Furthermore, an arc-shaped hole and a clamping part are arranged on the rotary table, the clamping part is composed of an upper cylinder and a lower cylinder, and the diameter of the upper cylinder is larger than that of the lower cylinder.

Furthermore, two ends of the square part are semicircular, a sliding hole is formed in the square part, and the width of the sliding hole is the same as the diameter of a cylinder below the clamping part; the diameter of the cylinder on the clamping piece is larger than the width of the square piece.

Furthermore, a certain gap is reserved between the sliding block and the inner wall of the valve body and between the piston and the inner wall of the valve body.

Furthermore, a first valve port is arranged on the valve plate; and a second valve port is arranged on the valve body.

Further, the driving device is a torque motor.

The invention has the beneficial effects that:

1. according to the invention, the rotary table is designed, the clamping piece is arranged on the rotary table, the rotary table is driven by the driving device to rotate the clamping piece, the clamping piece slides along the square piece sliding groove, the square piece is further moved left and right, the push rod II drives the sliding block to move, the force transmission direction is changed, and the force transmission is more stable.

2. The positioning device is matched with the protruding piece, the boss is higher than the inner wall of the valve body, the positioning spring can be further compressed, the force of the positioning spring is stored, the electric valve is switched more quickly when being opened or closed, and the positioning devices are arranged on two sides of the piston, so that the positioning is more stable.

3. According to the invention, the spring is arranged between the sliding block and the piston, so that the valve can further store force when being opened or closed, and the faster response can be realized.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.

Fig. 1 is a structural view of an electric valve of the present invention;

FIG. 2 is an enlarged view of a portion of the positioning device of the present invention;

FIG. 3 is a view of the structure of the retaining member of the present invention;

in the figure: 1. a valve body; 2. a valve plate; 3. a first valve port; 4. a second valve port; 5. pushing the head; 6. a first push rod; 7. a positioning device; 7-1, positioning steel balls; 7-2, a positioning spring; 7-3, fixing screws; 8. an elastic member; 9. a slider; 10. a second push rod; 11. a turntable; 12. a clamping piece; 13. a drive device; 14. an arc-shaped hole; 15. a square piece; 16. a piston; 17. a groove; 18. and a protrusion member.

Detailed Description

It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

For convenience of description, the words "up", "down", "left" and "right" in the present application, if any, merely indicate correspondence with the directions of up, down, left and right of the drawings themselves, and do not limit the structure, but merely facilitate the description of the invention and simplify the description, rather than indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the invention.

Term interpretation section: the terms "mounted," "connected," "fixed," and the like in the present invention are to be understood broadly, and for example, they may be fixedly connected, detachably connected, or integrated; the term "coupled" may refer to a mechanical coupling, a direct coupling, an indirect coupling via an intermediate, an internal coupling of two elements, or an interaction of two elements, and it is understood that the terms used in the present invention have the same meaning as the terms used in the present invention.

The present invention will be described in detail below with reference to the accompanying drawings, wherein the ball-positioning electric spool valve disclosed in this embodiment includes: the valve comprises a valve body 1, wherein a valve plate 2 is arranged on the right side of the valve body 1, the valve plate 2 is connected with a driving device 13 through a piston 16 and a sliding block 9, and the driving device 13 is connected with the center of a rotary table 11; the piston 16 is provided with a positioning device 7. The driving device 13 rotates to drive the turntable 11 to rotate, so that the sliding block 9 and the piston 16 move leftwards or rightwards, the piston 16 moves leftwards or rightwards for a certain distance, the positioning device 7 is positioned on the left side or the right side, and then the valve is opened or closed.

The valve plate 2 is provided with a push head 5, the push head 5 is connected with a piston 16 through a first push rod 6, and the piston 16 pushes the first push rod 6 to drive the valve plate 2 to move. The first push rod 6 is connected with the piston 16, the push head 5 is connected with the first push rod 6, the push head 5 is used for fixing the valve plate 2, the connection is more stable, and the first push rod 6 drives the valve plate 2 to move left and right when the piston 16 moves left and right.

The positioning device 7 is disposed on the upper and lower sides of the piston 16, and includes: a positioning steel ball 7-1, a positioning spring 7-2 and a fixing screw 7-3; the valve body 1 is provided with grooves 17, and the grooves 17 are symmetrically arranged on the left side and the right side of the positioning device 7. The fixing screw 7-3 is used for resisting against the positioning spring 7-2, and the height can be slightly adjusted to adapt to the infirm positioning caused by slight abrasion of the piston 16 or the inner wall of the valve body 1 in use, and the firm positioning can be realized by only adjusting the height of the fixing screw 7-3 in the groove. When the piston 16 moves left and right, the positioning steel ball 7-1 is pressed into the positioning groove, the positioning spring 7-2 is compressed, certain force storage is realized, when the piston 16 slides to the groove 17, the quick response can be realized, and the positioning steel ball 7-1 is quickly bounced into the groove 17, so that the positioning is realized. The positioning devices 7 are arranged on the upper side and the lower side of the piston 16, so that the piston 16 can be positioned more firmly when reaching a specified position, and the valve is stably in an opening or closing state.

The groove 17 is a semicircular groove, and the diameter of the groove 17 is the same as that of the positioning steel ball 7-1; a protruding part 18 is arranged between the left groove 17 and the right groove 17, the protruding part 18 is arranged on the inner wall of the valve body 1, a sliding groove is arranged in the protruding part 18, and the groove surface of the sliding groove is attached to the positioning steel balls. The grooves 17 can be tightly attached to the surfaces of the positioning steel balls, so that positioning is firmer, the protruding parts 18 are arranged between the grooves 17, when the positioning device 7 comes out from the groove on the right side and moves leftwards, the positioning steel balls 7-1 move to the sliding grooves of the protruding parts, so that the positioning spring 7-2 can be further compressed, better power storage and sliding can be realized, and the positioning spring can also slide to the groove on the left side quickly, so that the valve can be opened or closed quickly.

An elastic element 8 is arranged between the piston 16 and the sliding block 9; the left side of the sliding block 8 is connected with a square part 15 through a second push rod 10. The elastic member 8 is a spring, and when the rotary disc 11 rotates, the elastic member 8 can realize two states of stretching or compressing.

The turntable 11 is provided with an arc-shaped hole 14 and a clamping part 12, the clamping part 12 is composed of an upper cylinder and a lower cylinder, and the diameter of the upper cylinder is larger than that of the lower cylinder. The two ends of the square part 15 are semicircular, a sliding hole is formed in the square part 15, and the width of the sliding hole is the same as the diameter of a lower cylinder of the clamping part 12; the diameter of the cylinder on the blocking part 12 is larger than the width of the square part 15. Set up arc hole 14 on carousel 11 and can alleviate the quality of carousel 11, make to rotate more smoothly, screens 12 is as shown in fig. 3, it is greater than lower cylinder diameter to go up cylindrical diameter, two cylinder welding, screens 12 passes square piece 15, lower cylindrical lower surface welding is on carousel 11, carousel 11 rotates and makes screens 12 reciprocate in square piece 15's sliding hole, and then control about making square piece 15, and then control through two 10 drive sliding blocks 9 of push rod.

And a certain gap is reserved between the sliding block 9 and the piston 16 and the inner wall of the valve body 1. So that the positioning means 7 can slide in the gap.

The valve plate is provided with a first valve port 3; and a second valve port 4 is arranged on the valve body. The valve is opened or closed by the first valve port 3 and the second valve port 4 being overlapped or not overlapped through the movement of the valve plate 2.

The driving device 13 is a torque motor. For driving the turntable 11 to rotate.

The working principle is as follows:

when the rotary disc 11 rotates clockwise, the blocking part 12 moves downwards in the sliding hole of the square part 15, so that the square part 15 moves rightwards, the push rod two 10 pushes the sliding block 9 to move rightwards, at the moment, the elastic part 8 is in an unstressed state, under the pushing of the push rod two 10, the elastic part 8 is under pressure, the push piston 16 moves rightwards, so that the positioning device 7 is driven to move rightwards, the positioning steel ball 7-1 slides in the sliding groove of the protrusion part 18, the positioning spring 7-2 is compressed to store force, after pushing for a certain distance, the right groove is reached, the positioning steel ball 7-1 is quickly bounced in to realize positioning, the piston 16 drives the push rod one 6 to move rightwards the valve plate 2, the first valve port 3 on the valve plate 2 is overlapped with the second valve port 4, the elastic part 8 is in a compressed state, and the valve is in an open state.

The rotary disc 11 continues to rotate, the clamping piece 12 moves from bottom to top, the square piece 15 moves to the left, the push rod two 10 pushes the sliding block 9 to move to the left, at the moment, the positioning device 7 can be separated from the right groove only by moving to the left for a short distance, the elastic piece 8 can rebound rapidly, the positioning device 7 moves to the left groove along the protruding piece 18 rapidly, the positioning steel ball 7-1 can rebound into the left groove rapidly, the valve plate 2 moves to the left under the driving of the piston 16, the first valve port 3 and the second valve port 4 are not overlapped, and the valve is in a closed state.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive changes in the technical solutions of the present invention.

Claims

1. A ball detent electrical spool valve comprising: the valve plate is connected with a driving device through a piston and a sliding block, and the driving device is connected with the center of the rotary table; and a positioning device is arranged on the piston.

2. An electric slide valve with steel ball positioning function as claimed in claim 1, wherein the valve plate is provided with a push head, the push head is connected with a piston through a first push rod, and the piston pushes the first push rod to drive the valve plate to move.

3. A steel ball positioning electrical slide valve as claimed in claim 1, wherein said positioning means are provided on the upper and lower sides of the piston, comprising: positioning steel balls, positioning springs and fixing screws; the valve body is provided with grooves which are symmetrically arranged on the left side and the right side of the positioning device.

4. The steel ball positioning electric slide valve as claimed in claim 1, wherein the groove is a semicircular groove, and the diameter of the groove is the same as that of the positioning steel ball; a protruding part is arranged between the left groove and the right groove and arranged on the inner wall of the valve body, a sliding groove is formed in the protruding part, and the groove surface of the sliding groove is attached to the positioning steel ball.

5. A steel ball locating electrical slide valve as claimed in claim 1, wherein a resilient member is provided between said piston and said slide block; the left side of the sliding block is connected with the square part through a second push rod.

6. An electric slide valve for locating steel balls as defined in claim 1, which is composed of an arc hole on said rotary disk and a locating part consisting of upper and lower cylinders, the diameter of said upper cylinder is greater than that of said lower cylinder.

7. An electric slide valve for positioning steel balls as claimed in claim 5, wherein the square part has semicircular ends, a slide hole is provided in the square part, and the width of the slide hole is the same as the diameter of the lower cylinder of the block part; the diameter of the cylinder on the clamping piece is larger than the width of the square piece.

8. A steel ball locating electrical slide valve as claimed in claim 1, in which a clearance is provided between the slide block and the piston and the inner wall of the valve body.

9. A steel ball positioned electrical slide valve as set forth in claim 1 wherein said valve plate is provided with a first valve port; and a second valve port is arranged on the valve body.

10. A steel ball locating electro-slide valve as defined in claim 1 in which said drive means is a torque motor.