One-speed regulating valve

Abstract

The utility model discloses a first-speed regulating valve, which is provided with a first direction and comprises a main valve body, a second valve body and a third valve body, the electromagnetic control structure controls the valve element to slide in the first direction relative to the main valve shell, one end of the valve element is a control end, the main valve shell is provided with a through hole, and the control end penetrates out of the main valve shell through the through hole. The opening control module and the main valve body are relatively fixed; the opening degree control module comprises a control device, an adjusting rod driving structure and an adjusting rod body, the adjusting rod driving structure drives the adjusting rod body to be close to or away from the main valve body in the first direction, the control device is used for controlling the moving direction and the moving distance of the adjusting rod body, and the adjusting rod body is used for limiting the length of the valve element extending out of the main valve body. According to the scheme, the flow of the first-speed regulating valve is electronically controlled, compared with an existing first-speed regulating valve, regulation is more convenient, the flow flowing through the first-speed regulating valve can be controlled, and the regulation accuracy can be effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to control valve technical field, especially a speed governing valve. BACKGROUND

[0002] The speed governing of the commonly used die casting equipment is manual, and the position of the speed governing is close to the furnace, which is dangerous and cannot control the specific governing amount. INVENTION CONTENTS

[0003] The utility model solves the technical problem that provides a speed governing valve to solve one or more technical problems in the prior art, and at least provides a beneficial selection or creates conditions.

[0004] The utility model solves the technical problem of the solution scheme:

[0005] The speed governing valve has a first direction and comprises:

[0006] The main valve body comprises a main valve shell, a valve core and an electromagnetic control structure; the electromagnetic control structure controls the valve core to slide relative to the main valve shell along the first direction, one end of the valve core is provided as a control end, the main valve shell is provided with a through hole, and the through hole is used for the control end to pass out of the main valve shell;

[0007] The opening degree control module is fixed relative to the main valve body; the opening degree control module comprises a control device, an adjusting rod driving structure and an adjusting rod body, the adjusting rod driving structure drives the adjusting rod body to approach or move away from the main valve body along the first direction, the control device is used for controlling the moving direction and moving distance of the adjusting rod body, and the adjusting rod body is used for limiting the length of the valve core extending out of the main valve body.

[0008] As a further improvement of the above technical solution, the adjusting rod driving structure comprises:

[0009] The adjusting driving motor is fixed relative to the main valve body;

[0010] The driving connecting sleeve is driven by the adjusting driving motor to rotate around an axis parallel to the first direction;

[0011] The adjusting rod body is connected with the driving connecting sleeve, and when the driving connecting sleeve rotates, the adjusting rod body approaches or moves away from the main valve body along the first direction.

[0012] As a further improvement of the above technical solution, the adjusting rod driving structure further comprises a speed reducer, and the speed reducer comprises a speed reduction input end and a speed reduction output end, and the speed reduction input end is connected with the output end of the adjusting driving motor.

[0013] As a further improvement to the above technical solution, the axis of the speed reduction input end and the axis of the speed reduction output end of the speed reducer are staggered.

[0014] As a further improvement to the above technical solution, the reducer includes a first bevel gear and a second bevel gear, which mesh with each other.

[0015] As a further improvement to the above technical solution, the axis of the speed reduction input end and the axis of the speed reduction output end of the speed reducer are arranged perpendicularly.

[0016] As a further improvement to the above technical solution, the adjusting rod drive structure also includes an encoder, the detection end of which is fixed to the drive connecting sleeve, and the encoder is connected to the adjusting drive motor via the control device signal.

[0017] As a further improvement to the above technical solution, the adjusting rod drive structure further includes:

[0018] A guide assembly, comprising a guide groove and a guide key; the guide groove and the guide key are respectively disposed on the adjusting rod body and the drive connecting sleeve, the guide groove and the guide key are slidably connected, the guide groove extends along the first direction, and the guide key is slidably connected to the guide groove;

[0019] A threaded assembly, comprising a first thread and a second thread, wherein the first thread is disposed on the adjusting rod body, and the second thread is fixed relative to the main valve body, and the first thread and the second thread are threadedly connected to each other.

[0020] As a further improvement to the above technical solution, the guide key is fixedly installed on the adjusting rod body, and the guide groove is provided in the drive connecting sleeve.

[0021] As a further improvement to the above technical solution, the adjusting rod drive structure is provided with a limiting groove, the adjusting rod body is fixed with a limiting ring, the limiting ring is disposed in the limiting groove, and the limiting ring and the limiting groove are used to limit the sliding position of the adjusting rod body.

[0022] The beneficial effects of this invention are as follows: By driving the adjusting rod body closer to or further away from the main valve body through the adjusting rod drive structure, and controlling the moving direction and distance of the adjusting rod body through the control device, the movement position of the main valve body can be restricted, thereby controlling the opening of the main valve body to regulate the flow rate through the primary control valve. This solution uses electronic control of the flow rate of the primary control valve, which is more convenient to adjust than existing primary control valves, and can control the flow rate through the primary control valve, effectively improving the adjustment accuracy.

[0023] This invention relates to the field of control valve technology. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly explained below. Obviously, the described drawings are only a part of the embodiments of this utility model, and not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0026] Figure 2 This is a cross-sectional structural schematic diagram of an embodiment of the present utility model;

[0027] Figure 3 yes Figure 2 A magnified view of part A in the diagram.

[0028] In the diagram, 100 is the main valve body; 110 is the through hole; 200 is the opening control module; 210 is the adjusting rod; 221 is the mounting flange; 222 is the reducer; 223 is the adjusting drive motor; 224 is the drive connecting sleeve; 225 is the encoder; 300 is the guide assembly; 310 is the guide key; 320 is the guide groove; 400 is the thread assembly; 410 is the first thread; 420 is the second thread; 510 is the ring groove; 520 is the sealing ring; 610 is the limit groove; and 620 is the limit retaining ring. Detailed Implementation

[0029] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages mentioned herein do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this invention can be combined interactively without contradicting each other.

[0030] Reference Figures 1 to 3 A one-speed regulating valve, having a first direction. The one-speed regulating valve includes: a main valve body 100 and an opening control module 200.

[0031] The main valve body 100 includes an electromagnetic control structure, a valve core, and a main valve housing (since the main valve body 100 is prior art, the electromagnetic control structure, valve core, and main valve housing are not shown in the figure). In this embodiment, the main valve body 100 is configured as a conventional two-position four-way solenoid valve. The electromagnetic control structure is fixedly installed in the main valve housing. The electromagnetic control structure is a conventional solenoid valve control structure, and its specific construction will not be described in detail here. The valve core is installed inside the main valve housing. The valve core is used to change the hydraulic oil circuit. The valve core and the main valve housing are slidably connected along a first direction. The electromagnetic control structure is connected to the valve core. The electromagnetic control structure drives the valve core to move relative to the main valve housing along the first direction, thereby changing the working position of the valve core and thus changing the hydraulic oil circuit. Specifically, in this embodiment, one end of the valve core is configured as a control end, and one end of the main valve housing has a through hole 110 for the control end of the valve core to pass through the main valve housing from the inside to the outside.

[0032] The opening control module 200 includes an adjusting rod body 210 and an adjusting rod drive structure.

[0033] Specifically, in this embodiment, the adjusting rod drive structure includes a mounting flange 221, a reducer 222, an adjusting drive motor 223, a drive connecting sleeve 224, and an encoder 225.

[0034] The mounting flange 221 is fixedly connected to the main valve body by welding or screws. Those skilled in the art can select the specific fixing connection method between the mounting flange 221 and the main valve body according to actual needs.

[0035] The speed reducer 222 is fixedly connected to the mounting flange 221 by screws. The speed reducer 222 is provided with a speed reduction output end and a speed reduction input end. In this embodiment, the axis of the speed reduction output end and the axis of the speed reduction input end are arranged perpendicular to each other, and the axis of the speed reduction output end is arranged parallel to the first direction. In other embodiments, the axis of the speed reduction output end and the axis of the speed reduction input end can also be arranged in an obtuse angle. Those skilled in the art can select the included angle between the axis of the speed reduction output end and the axis of the speed reduction input end according to actual needs.

[0036] Specifically, in this embodiment, the reducer 222 includes a first bevel gear and a second bevel gear (not shown in the figure), which mesh with each other. The first bevel gear is located at the reduction input end, and the second bevel gear is located at the reduction output end. In other embodiments, the reducer 222 can also be configured as a worm gear reducer 222. Those skilled in the art can select the specific structure of the reducer 222 according to actual needs.

[0037] In this embodiment, a drive connecting sleeve 224 (fixedly connected to the second bevel gear) is installed at the reduction output end of the reducer 222, and the reduction input end of the reducer 222 is fixedly connected to the output end of the regulating drive motor 223 (fixedly connected to the first bevel gear). Through the reducer 222, the power of the regulating drive motor 223 is transmitted to the drive connecting sleeve 224, and the drive connecting sleeve 224 and the output end of the regulating drive motor 223 are driven by alternating shafts.

[0038] Specifically, in this embodiment, the adjusting rod 210 is a round rod-shaped structure. In this embodiment, the adjusting rod 210 is rotatably connected to the mounting flange 221 and slidably connected to the drive connecting sleeve 224 along a first direction. In other embodiments, the adjusting rod 210 may also be configured to slide along the first direction to the mounting flange 221 and rotatably connected to the drive connecting sleeve 224. Those skilled in the art can select the connection method between the adjusting rod 210, the mounting flange 221, and the drive connecting sleeve 224 according to actual needs.

[0039] Specifically, the adjusting rod drive structure also includes a guide assembly 300 and a thread assembly 400.

[0040] The guide assembly 300 includes a guide key 310 and a guide groove 320. In this embodiment, the guide key 310 is fixedly connected to the end of the adjusting rod 210 away from the main valve body 100. The guide key 310 is fixedly connected to the adjusting rod by screws. The guide groove 320 is opened on the inner side of the drive connecting sleeve 224 and extends along the first direction. The guide key 310 is partially disposed in the guide groove 320 and is slidably connected to the guide groove 320. Through the guide assembly 300, the adjusting rod 210 can rotate with the drive connecting sleeve 224 and can move closer to or further away from the main valve body 100 relative to the drive connecting sleeve 224 along the first direction.

[0041] The threaded assembly 400 includes a second thread 420 and a first thread 410. The second thread 420 is disposed on the mounting flange 221, and the first thread 410 is disposed on the adjusting rod body 210. The second thread 420 and the first thread 410 are threadedly connected to each other. When the adjusting rod body 210 rotates, the threaded assembly 400 will cause the adjusting rod body 210 to move in a first direction, thereby realizing the adjustment of the position of the adjusting rod.

[0042] In other embodiments, the threaded assembly 400 may be disposed between the adjusting rod body 210 and the drive connecting sleeve 224, and the guide assembly 300 may be disposed between the mounting flange 221 and the adjusting rod. Those skilled in the art can adjust the placement positions of the threaded assembly 400 and the guide assembly 300 and the two associated components according to the actual situation.

[0043] Because the drive connecting sleeve 224 and the output end of the regulating drive motor 223 are driven by interleaved shafts, the end of the drive connecting sleeve 224 away from the main valve body 100 has sufficient space to install the encoder 225. In this scheme, the encoder 225 is fixedly connected to the end of the drive connecting sleeve 224 away from the main valve body 100. The encoder 225 is connected to the regulating drive motor 223 through a control device. The control device is used to control the on / off state and forward / reverse rotation of the regulating drive motor 223, thereby adjusting the position of the regulating rod 210 to achieve control of the opening degree.

[0044] The encoder 225 can obtain the number of rotations of the drive connecting sleeve 224. Combined with the thread parameters of the threaded structure, the control device calculates the moving distance of the adjusting rod 210, thereby achieving precise control of the valve core opening and thus regulating the flow rate through the first-speed regulating valve.

[0045] Specifically, in this embodiment, a groove 510 is provided at one end of the adjusting rod 210 near the main valve body 100, and a sealing ring 520 is installed in the groove 510. The sealing ring 520 abuts against the inner wall of the mounting flange 221, thereby achieving a seal between the adjusting rod 210 and the mounting flange 221 to prevent liquid from flowing into the reducer 222.

[0046] Specifically, in this embodiment, a limiting groove 610 is provided at the end of the mounting flange 221 away from the main valve body 100, and a limiting retaining ring 620 is fixedly installed on the adjusting rod 210. The limiting retaining ring 620 is disposed on one side of the main valve body 100 with the first thread 410. The limiting retaining ring 620 is disposed in the limiting groove 610. When the adjusting rod 210 slides along the first direction, the limiting retaining ring 620 will slide along the first direction with the adjusting rod 210. The limiting retaining ring 620 is in the limiting groove 610. When it moves to a certain position, the limiting retaining ring 620 will be restricted by the end of the limiting groove 610, thereby restricting the position of the adjusting rod 210 to avoid the first thread 410 on the adjusting rod 210 from contacting other components and causing damage to the first thread 410.

[0047] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A one-speed regulating valve, having a first direction, characterized in that: include: The main valve body includes a main valve housing, a valve core, and an electromagnetic control structure; the electromagnetic control structure controls the valve core to slide relative to the main valve housing along the first direction, one end of the valve core is designated as a control end, and the main valve housing is provided with a through hole for the control end to pass through the main valve housing; An opening control module is fixed relative to the main valve body. The opening control module includes a control device, an adjusting rod drive structure, and an adjusting rod body. The adjusting rod drive structure drives the adjusting rod body to move closer to or away from the main valve body along the first direction. The control device is used to control the moving direction and moving distance of the adjusting rod body. The adjusting rod body is used to limit the length of the valve core extending out of the main valve body.

2. The one-speed regulating valve according to claim 1, characterized in that: The adjusting rod drive structure includes: The adjustment drive motor is fixed relative to the main valve body; The drive connecting sleeve is driven by the adjustment drive motor to rotate around an axis parallel to the first direction; The adjusting rod is connected to the drive connecting sleeve. When the drive connecting sleeve rotates, the adjusting rod moves closer to or further away from the main valve body along the first direction.

3. The one-speed regulating valve according to claim 2, characterized in that: The adjusting rod drive structure also includes a speed reducer, which includes a speed reduction input end and a speed reduction output end. The speed reduction input end is connected to the output end of the adjusting drive motor.

4. The one-speed regulating valve according to claim 3, characterized in that: The axes of the speed reducer's input end and output end are staggered.

5. The one-speed regulating valve according to claim 4, characterized in that: The speed reducer includes a first bevel gear and a second bevel gear, which mesh with each other.

6. The one-speed regulating valve according to claim 4 or 5, characterized in that: The axis of the speed reducer's input end and the axis of its output end are arranged perpendicularly.

7. The one-speed regulating valve according to claim 4, characterized in that: The adjusting rod drive structure also includes an encoder, the detection end of which is fixed to the drive connection sleeve, and the encoder is connected to the adjusting drive motor via the control device signal.

8. The one-speed regulating valve according to claim 1, characterized in that: The adjusting rod drive structure also includes: A guide assembly, comprising a guide groove and a guide key; the guide groove and the guide key are respectively disposed on the adjusting rod body and the drive connecting sleeve, the guide groove and the guide key are slidably connected, the guide groove extends along the first direction, and the guide key is slidably connected to the guide groove; A threaded assembly, comprising a first thread and a second thread, wherein the first thread is disposed on the adjusting rod body, and the second thread is fixed relative to the main valve body, and the first thread and the second thread are threadedly connected to each other.

9. The one-speed regulating valve according to claim 8, characterized in that: The guide key is fixedly installed on the adjusting rod body, and the guide groove is provided in the drive connecting sleeve.

10. The one-speed regulating valve according to claim 1, characterized in that: The adjusting rod drive structure is provided with a limiting groove, and the adjusting rod body is fixed with a limiting ring. The limiting ring is disposed in the limiting groove, and the limiting ring and the limiting groove are used to limit the sliding position of the adjusting rod body.

Images