A segmented actuator

Abstract

The utility model relates to actuator technical field especially, it relates to a kind of segmented actuator, it includes the control system for controlling the segmented execution of the actuator, the control system includes: air filter pressure reducing valve, flow regulating valve, first solenoid valve, second solenoid valve, check valve and third solenoid valve;The air filter pressure reducing valve, flow regulating valve, first solenoid valve form accurate release control loop, so that actuator carries out first execution stage;The air filter pressure reducing valve, second solenoid valve, check valve sequentially connect and form quick release control loop;By setting accurate release control loop and quick release control loop, the segmented control of actuator is realized, adapts to different working conditions, avoids the phenomenon that water hammer appears when valve is suddenly opened in the process that large-flow material is unloaded due to initial valve opening too fast, simultaneously, the two-stage quick response of valve is realized, solve the problem of existing technology corresponding delay.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of actuator, especially relates to a segmented actuator. BACKGROUND

[0002] The loading and unloading system avoids impact caused by rapid falling of materials in the initial loading and unloading process, and influences normal loading and unloading, therefore, in the initial loading and unloading process, the flow of materials needs to be reduced, that is, the opening of the discharge port is gradually opened and kept for a period of time at a certain opening, and after the flow of materials is stable, the valve plate of the valve is fully opened quickly to load and unload the materials quickly.

[0003] Chinese patent CN201520533308.2 discloses a two-stage control pneumatic actuator, which comprises an execution cylinder, a pneumatic mechanism connected with the execution cylinder, the execution cylinder comprises a cylinder body, a left end cover, a right end cover, a left piston and a right piston arranged in the cylinder body, a gear shaft, the gear shaft for connecting the valve is engaged with the rack of the left and right pistons, a first air pipe is arranged on the cylinder body, the inner port of the first air pipe is located between the left and right pistons, and a second air pipe is connected with the left and right end covers.

[0004] However, the technical scheme needs to cooperate with the positioner to control the opening of the valve, which is slow and has poor adaptability to the working conditions that need to be responded quickly. UTILITY MODEL CONTENTS

[0005] The utility model aims at the deficiencies of the prior art, provides a segmented actuator, realizes segmented control of the actuator through precise release control loop and quick release control loop, adapts to different working conditions, avoids the phenomenon of water hammer caused by sudden opening of the valve due to too fast initial valve opening in the process of unloading of large-flow materials, simultaneously realizes two-stage quick response of the valve, and solves the problem of slow response of the prior art.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A segmented actuator, characterized in that it includes a control system for controlling the segmented execution of the actuator, the control system including: an air filter pressure reducing valve, a flow regulating valve, a first solenoid valve, a second solenoid valve, a check valve, and a third solenoid valve;

[0008] The air filter pressure reducing valve, the flow regulating valve, and the first solenoid valve form a precise release control loop, enabling the actuator to perform the first execution stage.

[0009] The air filter pressure reducing valve, the second solenoid valve, and the one-way valve are connected in sequence to form a rapid release control circuit.

[0010] As an improvement, the first solenoid valve is energized and the third solenoid valve is de-energized. The airflow passes through the precision release control circuit to enable the actuator to perform the first execution stage. The output of the actuator slowly drives the valve to open.

[0011] As an improvement, after the first execution phase has been completed for a specified time, the first solenoid valve continues to be energized, the third solenoid valve is energized, and the second solenoid valve is switched. At this time, the airflow passes through the rapid release control circuit to make the actuator enter the second execution phase, and the output end of the actuator quickly drives the valve to open.

[0012] As an improvement, the flow regulating valve is a needle valve.

[0013] As an improvement, the third solenoid valve is used to control the on / off state of the second solenoid valve.

[0014] As an improvement, the actuator controls the opening and closing of the valve; the actuator is a two-stage actuator.

[0015] As an improvement, the actuator includes:

[0016] The cylinder body has a first vent in the middle, and a second vent, a third vent, a fourth vent, a fifth vent, and a sixth vent on both sides of the first vent.

[0017] An output rod, one end of which extends into the cylinder body and is provided with a synchronizing tooth at the end;

[0018] A transmission rack is symmetrically arranged on both sides of the synchronizing gear; the transmission rack is slidably disposed inside the cylinder body, with one end meshing with the synchronizing gear for transmission, and the other end provided with a first piston portion;

[0019] A transmission rod, one end of which is connected to a second piston portion, the second piston portion being slidably disposed inside the cylinder body, and the other end being slidably connected to the first piston portion;

[0020] A positioning component is fixedly installed inside the cylinder body and is positioned between the second piston portion and the first piston portion; the transmission rod passes through the positioning component and is slidably connected to it; the positioning component guides the transmission rod to ensure stable operation.

[0021] A reset element is disposed between the transmission rack and the positioning element, and is used to reset the transmission rack.

[0022] As an improvement, one end of the transmission rod is provided with a sliding groove, and the first piston portion is slidably disposed in the sliding groove.

[0023] As an improvement, the second piston on the left side is slidably positioned between the second vent and the third vent.

[0024] The second piston on the right side is slidably positioned between the fifth vent and the sixth vent.

[0025] As an improvement, the fourth vent is simultaneously connected to the chamber between the left drive rack and the left positioning member, as well as the chamber between the right drive rack and the right positioning member.

[0026] The beneficial effects of this utility model are as follows:

[0027] (1) This utility model achieves segmented control of the actuator by setting up a precise release control circuit and a fast release control circuit, adapting to different working conditions and avoiding the phenomenon of water hammer caused by the valve opening too fast during the unloading of large flow of materials.

[0028] (2) This utility model achieves the first execution stage proceeding slowly and the second execution stage proceeding rapidly by seamlessly connecting the first execution stage and the second execution stage, ensuring the rapid response of the execution mechanism. Furthermore, when the second execution stage is working, the precise release control circuit and the rapid release control circuit work simultaneously, further accelerating the efficient execution of the second execution stage.

[0029] (3) In the closing phase, after the third solenoid valve is de-energized, the airflow quickly enters the cylinder through the second and sixth air ports, thereby realizing the rapid reset of the actuator.

[0030] In summary, this utility model has the advantages of phased execution, slow first execution phase, and rapid response in second execution phase. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0032] Figure 2 This is a schematic diagram of the transmission rod structure of this utility model;

[0033] Figure 3 This is a schematic diagram of the first execution stage of this utility model;

[0034] Figure 4 This is a schematic diagram of the second execution stage of this utility model;

[0035] Figure 5 This is a schematic diagram of the closing phase of this utility model. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0038] Example 1

[0039] like Figures 1-2 As shown, this embodiment provides a segmented actuator, including a control system 1 for controlling the segmented execution of the actuator 1. The control system 1 includes: an air filter pressure reducing valve 11, a flow regulating valve 12, a first solenoid valve 13, a second solenoid valve 14, a one-way valve 15, and a third solenoid valve 16.

[0040] The air filter pressure reducing valve 11, the flow regulating valve 12, and the first solenoid valve 13 form a precise release control circuit 100, enabling the actuator 1 to perform the first execution stage.

[0041] The air filter pressure reducing valve 11, the second solenoid valve 14, and the one-way valve 15 are connected in sequence to form a rapid release control circuit 100.

[0042] As an improvement, the first solenoid valve 13 is energized and the third solenoid valve 16 is de-energized. The airflow passes through the precision release control circuit 100 to enable the actuator 1 to perform the first execution stage. The output end of the actuator 1 slowly drives the valve to open.

[0043] Specifically, the first solenoid valve 13 is energized and the third solenoid valve 16 is de-energized. The airflow enters the cylinder 11 through the first air inlet 111. Under the action of air pressure, the transmission rack 13 moves to both sides, driving the output rod 12 to rotate slowly, thereby driving the valve to open slowly, thus avoiding water hammer problems.

[0044] As an improvement, after the first execution phase has been executed for a specified time, the first solenoid valve 13 continues to be energized, the third solenoid valve 16 is energized, and the second solenoid valve 14 is switched. At this time, the airflow passes through the rapid release control circuit 100 to make the actuator 1 perform the second execution phase, and the output end of the actuator 1 quickly drives the valve to open.

[0045] Specifically, it quickly enters the cylinder 11, causing the output rod 12 to open the valve to 100%, thereby achieving rapid unloading; the first and second execution stages are seamlessly connected, with a rapid response.

[0046] Preferably, the flow regulating valve 12 is a needle valve.

[0047] It should be noted that the needle valve is used to precisely control the gas flow rate. It can control the opening time of the actuator 1 in the first stage according to actual needs. At the same time, by opening the actuator slowly in the first stage, the phenomenon of water hammer caused by sudden valve opening is avoided.

[0048] As an improvement, the third solenoid valve 16 is used to control the on / off state of the second solenoid valve 14.

[0049] Example 2

[0050] like Figures 1-2 As shown, components that are the same as or corresponding to those in Embodiment 1 are referred to using the same reference numerals as in Embodiment 1. For simplicity, only the differences from Embodiment 1 are described below. The difference between Embodiment 2 and Embodiment 1 is as follows:

[0051] In this embodiment, the actuator 2 controls the opening and closing of the valve; the actuator 2 is a two-stage actuator.

[0052] Preferably, the actuator 2 includes:

[0053] The cylinder body 21 has a first vent 211 in the middle, and a second vent 212, a third vent 213, a fourth vent 214, a fifth vent 215, and a sixth vent 216 on both sides of the first vent 211.

[0054] Output rod 22, one end of which extends into the cylinder body 21 and is provided with a synchronizing gear 221 at the end;

[0055] A transmission rack 23 is symmetrically arranged on both sides of the synchronous gear 221; the transmission rack 23 is slidably disposed inside the cylinder body 21, one end of which meshes with the synchronous gear 221 for transmission, and the other end is provided with a first piston part 231;

[0056] A transmission rod 24, one end of which is connected to a second piston part 241, the second piston part 241 being slidably disposed inside the cylinder body 21, and the other end being slidably connected to the first piston part 231;

[0057] Positioning component 25 is fixedly installed inside the cylinder body 21 and is installed between the second piston part 241 and the first piston part 231; the transmission rod 24 passes through the positioning component 25 and is slidably connected to the positioning component 25; the positioning component 25 guides the transmission rod 24 to ensure stable operation.

[0058] A reset member 26 is disposed between the transmission rack 23 and the positioning member 25, and is used to reset the transmission rack 23.

[0059] As an improvement, one end of the transmission rod 24 is provided with a sliding groove 242, and the first piston part 231 is slidably disposed in the sliding groove 242.

[0060] Preferably, the second piston portion 241 on the left side is slidably disposed between the second vent 212 and the third vent 213;

[0061] The second piston portion 241 on the right side is slidably disposed between the fifth vent 215 and the sixth vent 216;

[0062] The fourth vent 214 connects to both the chamber between the left drive rack 23 and the left positioning member 25, and the chamber between the right drive rack 23 and the right positioning member 25. That is, when gas enters the cylinder 21 through the first vent, the compressed gas on one side is discharged through the fourth vent as the drive rack 23 moves.

[0063] Work steps

[0064] The first execution phase, such as Figure 3As shown, the first solenoid valve 13 is energized and the third solenoid valve 16 is de-energized. The airflow enters the cylinder 21 through the air filter pressure reducing valve 11, the flow regulating valve 12, the first solenoid valve 13, and the first vent 211, causing the transmission rack 23 to move outward, thereby driving the output rod 22 to rotate. The intake speed is controlled by the flow regulating valve 12, so that the output rod 22 rotates slowly during the initial opening process, achieving a slow initial opening and closing. At the same time, the airflow also enters the two sides of the cylinder through the second solenoid valve 14, the second vent 212, and the sixth vent 216, pushing the second piston 241 to move inward and abut against the positioning member 25, so that the first piston 231 of the first execution stage abuts against the step of the sliding groove 242, completing the first execution stage.

[0065] The second execution phase, such as Figure 4 As shown, the first solenoid valve 13 remains energized, and the third solenoid valve 16 is energized, causing the second solenoid valve 14 to switch. The airflow passes through the air filter pressure reducing valve 11, the second solenoid valve 14, the one-way valve 15, and the first vent 211 to quickly enter the cylinder, pushing the transmission rack 23 and driving the second piston 241 to move outward, thus quickly completing the second execution stage. At the same time, the gas also enters the cylinder through the flow regulating valve 12, the first solenoid valve 13, and the first vent 211. The two passages simultaneously push the piston outward, achieving efficient opening.

[0066] Closure phase, such as Figure 5 As shown, the first solenoid valve 13 and the third solenoid valve 16 are de-energized. The airflow passes through the air filter pressure reducing valve 11, the second solenoid valve 14, and the second vent 212 and the sixth vent 216 into both sides of the cylinder body, pushing the second piston part 241 to move inward and abut against the positioning member 25. Under the action of the reset member 26, the transmission rack 23 moves inward and drives the output rod 22 to rotate, thereby achieving reset.

[0067] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A segmented actuator, characterized in that, The system includes a control system for controlling the segmented execution of the actuator, the control system comprising: an air filter pressure reducing valve, a flow regulating valve, a first solenoid valve, a second solenoid valve, a check valve, and a third solenoid valve; The air filter pressure reducing valve, the flow regulating valve, and the first solenoid valve form a precise release control loop, enabling the actuator to perform the first execution stage. The air filter pressure reducing valve, the second solenoid valve, and the one-way valve are connected in sequence to form a rapid release control circuit.

2. The segmented execution mechanism according to claim 1, characterized in that, When the first solenoid valve is energized and the third solenoid valve is de-energized, the airflow passes through the precision release control circuit, causing the actuator to perform the first execution stage. The output of the actuator slowly drives the valve to open.

3. The segmented execution mechanism according to claim 1, characterized in that, After the first execution phase has been completed for the specified time, the first solenoid valve continues to be energized, the third solenoid valve is energized, causing the second solenoid valve to switch. The airflow passes through the rapid release control circuit, causing the actuator to enter the second execution phase. The output of the actuator quickly drives the valve to open.

4. The segmented execution mechanism according to claim 1, characterized in that, The flow regulating valve is a needle valve.

5. A segmented actuator according to claim 1, characterized in that, The third solenoid valve is used to control the on / off state of the second solenoid valve.

6. A segmented actuator according to any one of claims 1-5, characterized in that, The actuator controls the opening and closing of the valve; the actuator is a two-stage actuator.

7. A segmented actuator according to claim 1, characterized in that, The actuator includes: The cylinder body has a first vent in the middle, and a second vent, a third vent, a fourth vent, a fifth vent, and a sixth vent on both sides of the first vent. An output rod, one end of which extends into the cylinder body and is provided with a synchronizing tooth at the end; A transmission rack is symmetrically arranged on both sides of the synchronizing gear; the transmission rack is slidably disposed inside the cylinder body, with one end meshing with the synchronizing gear for transmission, and the other end provided with a first piston portion; A transmission rod, one end of which is connected to a second piston portion, the second piston portion being slidably disposed inside the cylinder body, and the other end being slidably connected to the first piston portion; A positioning component is fixedly installed inside the cylinder body and is positioned between the second piston portion and the first piston portion; the transmission rod passes through the positioning component and is slidably connected to it; the positioning component guides the transmission rod to ensure stable operation. A reset element is disposed between the transmission rack and the positioning element, and is used to reset the transmission rack.

8. A segmented actuator according to claim 7, characterized in that, One end of the transmission rod is provided with a sliding groove, and the first piston portion is slidably disposed in the sliding groove.

9. A segmented actuator according to claim 7, characterized in that, The second piston on the left side is slidably positioned between the second vent and the third vent. The second piston on the right side is slidably positioned between the fifth vent and the sixth vent.

10. A segmented actuator according to claim 7, characterized in that, The fourth vent connects to both the chamber between the left drive rack and the left positioning member, and the chamber between the right drive rack and the right positioning member.

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