CN219549734U

CN219549734U - Screw-driven electric-storage energy-storage type valve actuator

Info

Publication number: CN219549734U
Application number: CN202320266767.3U
Authority: CN
Inventors: 邱宇锋; 施祥兰
Original assignee: VAG Water Systems Taicang Co Ltd
Current assignee: VAG Water Systems Taicang Co Ltd
Priority date: 2023-02-21
Filing date: 2023-02-21
Publication date: 2023-08-18
Anticipated expiration: 2033-02-21

Abstract

The utility model relates to a screw rod transmission electricity storage energy storage type valve actuator which comprises a fixed seat, wherein a guide piece is rotationally connected to the fixed seat, a sliding piece is slidingly connected to the guide piece, a nut is fixedly connected to the sliding piece, one end of the guide piece is connected with a driving motor assembly, a screw rod is matched with the nut, one end of the screw rod is in driving connection with the driving motor assembly, one end of the sliding piece is rotationally connected with a crank, one end of the crank is connected with a driving shaft of a valve, and the axis of the driving shaft of the valve is parallel to the rotation axis of the guide piece. According to the utility model, the screw is matched with the nut, the screw is driven to rotate by the driving motor assembly, the sliding piece is driven to slide, the driving shaft is driven by the sliding piece to rotate by the crank, the driving force of the driving motor assembly is amplified by the screw and the crank, so that the miniaturization and the low power of the driving motor assembly are realized, the driving of the battery assembly is facilitated, and meanwhile, the structure is simpler, the maintenance is facilitated, and the cost is lower.

Description

Screw-driven electric-storage energy-storage type valve actuator

Technical Field

The utility model relates to a valve actuator, in particular to a screw drive electric storage energy storage type valve actuator.

Background

There are a class of angular rotation type safety valves in the current water treatment valve industry that require rapid actuation, which ensure actuation and function even if power is lost, such as quick-closing and slow-closing protection valves after pumping, pipe bursting protection valves, hydraulic turbine inlet safety valves, quick-opening drain valves, etc., and their actuators are typically energy storage type actuators, typically either heavy-hammer type electrohydraulic actuators or nitrogen energy storage tank type electrohydraulic actuators. The 2 actuators all need to operate by using a hydraulic system, and have the defects of complex structure, high cost, high maintenance difficulty and the like.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide a screw drive electric storage energy storage type valve actuator.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a lead screw transmission electric power storage energy storage formula valve actuator, includes the fixing base, it is connected with the guide to rotate on the fixing base, sliding connection has the slider on the guide, the nut has been linked firmly on the slider, guide one end is connected with driving motor subassembly, the cooperation has the screw rod on the nut, screw rod one end with driving motor subassembly drive connection, slider one end rotation is connected with the crank, the drive shaft of valve is connected to crank one end, the drive shaft axis of valve with the axis of rotation of guide is parallel.

Preferably, the guide piece is a tubular piece, one end of the guide piece is provided with an annular guide step, an inner hole of the guide step is attached to the outer wall of the sliding piece, and a sealing ring attached to the outer wall of the sliding piece is arranged in the inner hole of the guide step.

Preferably, one end of the sliding piece connected with the nut is located in the guide piece, one end of the sliding piece provided with the nut is sleeved with a guide ring, and the outer wall of the guide ring is attached to the inner wall of the guide piece.

Preferably, the sliding piece is provided with a half ring, and the guide ring is sleeved on the half ring.

Preferably, the nut is a screw nut, and the screw is a screw.

Preferably, the crank is provided with an angle transmitter for detecting the rotation angle of the crank.

Preferably, an angle limit switch is arranged on the rotating shaft of the crank.

Preferably, the driving motor assembly is an electric actuator.

Preferably, the driving motor assembly is provided with a controller, and the controller is provided with a storage battery pack for supplying power to the driving motor assembly.

The beneficial effects of the utility model are as follows: according to the utility model, the screw is matched with the nut, the screw is driven to rotate by the driving motor assembly, the sliding piece is driven to slide, the driving shaft is driven by the sliding piece to rotate by the crank, the driving force of the driving motor assembly is amplified by the screw and the crank, so that the miniaturization and the low power of the driving motor assembly are realized, the driving of the battery assembly is facilitated, and meanwhile, the structure is simpler, the maintenance is facilitated, and the cost is lower.

Drawings

The utility model will be further described with reference to the drawings and examples.

Fig. 1 is a schematic perspective view of a first embodiment of the present utility model.

Fig. 2 is a schematic perspective view of a second embodiment of the present utility model.

Fig. 3 is a schematic overall cross-sectional view of the present utility model.

Fig. 4 is an enlarged schematic view of the present utility model at I in fig. 3.

Fig. 5 is a schematic diagram of a drive motor assembly control power supply system of the present utility model.

Fig. 6 is a schematic diagram of the operation of the present utility model.

In the figure, a fixed seat 1, a driving motor assembly 2, a guide piece 3, a sliding piece 4, a crank 5, an angle transmitter 6, an angle limit switch 7, a screw rod 8, a nut 9, a guide ring 10, a half ring 11, a guide step 12, a sealing ring 13, a controller 14 and a storage battery pack.

Description of the embodiments

The present utility model will now be described in detail with reference to the drawings and the specific embodiments thereof, wherein the exemplary embodiments and the description are for the purpose of illustrating the utility model only and are not to be construed as limiting the utility model.

Examples

In this embodiment, a lead screw transmission electric power storage energy storage type valve actuator, including fixing base 1, rotation is connected with guide 3 on the fixing base 1, sliding connection has slider 4 on the guide 3, nut 9 has been linked firmly on the slider 4, 3 one end of guide is connected with driving motor subassembly 2, the cooperation has screw rod 8 on the nut 9, 8 one end of screw rod with driving motor subassembly 2 drive connection, slider 4 one end rotates and is connected with crank 5, the drive shaft of valve is connected to crank 5 one end, the drive shaft axis of valve with the axis of rotation of guide 3 is parallel.

Above-mentioned utilize screw rod 8 and nut 9 cooperation, through driving motor assembly 2 drive screw rod 8 rotation, and then drive slider 4 slides, and slider 4 passes through crank 5 rotation drive shaft, and driving force of driving motor assembly 2 has realized the miniaturization of driving motor assembly 2 through the amplification of screw rod 8 and crank 5, and the low-power is convenient for battery pack's drive, and the while structure is simpler, and the maintenance of being convenient for is lower.

Referring to fig. 3, the guide member 3 is a cylindrical member, one end of the guide member 3 is provided with an annular guide step 12, an inner hole of the guide step 12 is attached to the outer wall of the sliding member 4, and an inner hole of the guide step 12 is provided with a sealing ring 13 attached to the outer wall of the sliding member 4. The sliding part 4 is arranged in the guide part 3 and is sealed to the guide part 3 by the sealing ring 13, so that the nut 9 is effectively isolated from the outside, the nut 9 is prevented from being rusted, and the long-time service life of the nut 9 screw 8 mechanism is ensured.

Referring to fig. 4, one end of the sliding member 4 connected with the nut 9 is located in the guiding member 3, one end of the sliding member 4 provided with the nut 9 is sleeved with a guiding ring 10, and an outer wall of the guiding ring 10 is attached to an inner wall of the guiding member 3. The guide ring 10 can improve the accuracy of the fit between the slider 4 and the guide 3, and improve the smoothness of the slider 4.

Referring to fig. 4, the sliding member 4 is provided with a huff ring 11, and the guide ring 10 is sleeved on the huff ring 11. The half ring 11 facilitates assembly of the slider 4 with the guide 3.

Referring to fig. 3, in this embodiment, in order to improve transmission accuracy and smoothness, the nut 9 is a screw nut 9, and the screw 8 is a screw.

Referring to fig. 1, in order to facilitate continuous detection of the valve opening, in this embodiment, an angle transmitter 6 for detecting the rotation angle of the crank 5 is disposed on the crank 5, and is used for recording the rotation angle of the crank 5 and further recording the valve opening.

In order to reduce the equipment cost, the driving motor assembly 2 in this embodiment is an electric actuator.

Referring to fig. 5, the driving motor assembly 2 is provided with a controller 14, and the controller 14 is provided with a battery pack 15 for supplying power to the driving motor assembly 2. And then wind power generation or photovoltaic power generation is connected, so that the deployment in a non-power supply area is realized, and the deployment flexibility is higher.

Examples

In order to save the cost, the difference between the present embodiment and the embodiment 1 is that the rotation shaft of the crank 5 is provided with an angle limit switch 7, which can indicate the position of the valve plate according to the set angle.

During operation, the driving motor assembly 2 drives the screw rod 8 to rotate, and as the nut 9 cannot rotate under the limit of the sliding piece 4, the nut 9 moves along the axis direction of the screw rod 8, so that the sliding piece 4 is pushed to slide, the sliding piece 4 pushes the crank 5 to rotate around the driving shaft of the valve and drive the driving shaft to rotate, and finally, the opening and closing of the disc plate are realized.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims

1. The utility model provides a lead screw transmission electric power storage energy storage formula valve actuator, includes the fixing base, its characterized in that, it is connected with the guide to rotate on the fixing base, sliding connection has the slider on the guide, the nut has been linked firmly on the slider, guide one end is connected with driving motor subassembly, the cooperation has the screw rod on the nut, screw rod one end with driving motor subassembly drive connection, slider one end rotates and is connected with the crank, the drive shaft of valve is connected to crank one end, the drive shaft axis of valve with the axis of rotation of guide is parallel.

2. The screw drive power storage and energy storage type valve actuator according to claim 1, wherein the guide piece is a cylindrical piece, one end of the guide piece is provided with an annular guide step, an inner hole of the guide step is attached to the outer wall of the sliding piece, and a sealing ring attached to the outer wall of the sliding piece is arranged in the inner hole of the guide step.

3. The screw drive power storage and energy storage type valve actuator of claim 2, wherein one end of the sliding piece connected with the nut is located in the guide piece, one end of the sliding piece provided with the nut is sleeved with a guide ring, and the outer wall of the guide ring is attached to the inner wall of the guide piece.

4. A screw drive accumulator valve actuator as claimed in claim 3 wherein said slider is provided with a huff ring and said guide ring is sleeved on said huff ring.

5. The lead screw drive power storage and energy storage valve actuator of claim 1, wherein the nut is a lead screw nut and the screw is a lead screw.

6. The screw drive power storage and energy storage valve actuator of claim 1, wherein the crank is provided with an angle transmitter for detecting the crank rotation angle.

7. The screw drive power storage and energy storage type valve actuator of claim 1, wherein an angle limit switch is arranged on a rotating shaft of the crank.

8. The lead screw drive power storage and energy storage valve actuator of claim 1, wherein the drive motor assembly is an electric actuator.

9. A screw drive accumulator valve actuator according to any one of claims 1-8, wherein a controller is provided on the drive motor assembly, and a battery for powering the drive motor assembly is provided on the controller.