CN211174659U - Cylindrical valve power connector with buffer device and cylindrical valve thereof - Google Patents

Abstract

The utility model discloses a cylindrical valve force receiver with a buffer device and a cylindrical valve thereof, belonging to the technical field of large-scale water pumps.A piston is assembled in a servomotor cylinder body, and the servomotor cylinder body is divided into two closed cavities by the piston, each closed cavity is provided with at least one pair of oil through pipe and buffer pipeline, and the aperture of the oil through pipe is larger than that of the buffer pipeline; when the piston moves to the limit position of any closed cavity, the oil through pipeline of the closed cavity is shielded and sealed by the piston and the buffer pipeline of the closed cavity is communicated with the interior of the closed cavity; the servomotor lifting rod of the cylindrical valve power receiver is assembled and connected with the cylindrical valve body and drives the cylindrical valve body to do lifting motion, so that the operation requirement that the cylindrical valve needs to be opened and closed quickly for a large water pump with the cylindrical valve is met, and meanwhile, the aims of reducing the impact of the valve body on the top cover and the seat ring when the cylindrical valve is opened and closed quickly and the impact of the piston on the cylinder cover of the power receiver are fulfilled.

Description

Cylindrical valve power connector with buffer device and cylindrical valve thereof

Technical Field

The utility model belongs to the technical field of large-scale water pump unit, particularly, relate to a barrel valve power connector and barrel valve with buffer.

Background

Generally speaking, a large water pump unit can be provided with or without a movable guide vane, and the large water pump provided with the movable guide vane can be started and stopped by utilizing the opening and closing of the movable guide vane; for a large water pump without movable guide vanes, the large water pump needs to be started and stopped by using a water outlet valve or arranging a valve on a water pump unit.

When a large water pump unit without the movable guide vane is started and stopped, the opening time of the valve meets the requirement of the starting time of the unit, and the opening time of the water pump is relatively fast and is about 10-30 s long; when the unit is normally stopped or emergently stopped, the valve is closed according to the required closing time, the closing time of the large water pump is also fast, and the time is about 0-30 s. The opening and closing time of the conventional cylindrical valve is generally 60-90 s and can not meet the starting and stopping requirements of the large water pump unit without the movable guide vanes, so that a special cylindrical valve and a cylindrical valve servomotor thereof need to be designed to meet the requirements.

In view of the above technical problems, the following main disadvantages exist in the prior art: because the existing cylinder valve servomotor is not provided with a corresponding buffer device at the opening and closing end, if the cylinder valve servomotor is opened and closed quickly, the piston of the servomotor can cause larger impact on a cylinder cover of a force booster, so that the cylinder valve body and a top cover or a gasket can have larger impact, and the requirement of quick opening and closing can not be met.

From the above analysis, it can be seen that there are certain disadvantages in the other existing solutions, and therefore, in order to solve the above technical problems, it is necessary to improve the cylinder valve relay and the cylinder valve thereof accordingly.

SUMMERY OF THE UTILITY MODEL

In view of this, in order to solve the above-mentioned problem that prior art exists, the utility model aims at providing a barrel valve power connector and barrel valve with buffer need the operation requirement that the barrel valve opened and close fast for satisfying the large-scale water pump that is equipped with the barrel valve, simultaneously, reduce the purpose of the impact of valve body to top cap and packing ring and the impact of piston to power connector cylinder cap when the barrel valve opened and close fast.

The utility model discloses the technical scheme who adopts does: a cylindrical valve force receiver with a buffer device comprises a servomotor cylinder body, wherein a piston is assembled in the servomotor cylinder body, the servomotor cylinder body is divided into two closed cavities through the piston, each closed cavity is provided with at least one pair of oil through pipelines and buffer pipelines, the aperture of each oil through pipeline is larger than that of each buffer pipeline, and the oil through pipelines and the buffer pipelines are connected to the same oil way system; when the piston moves to the limit position of any closed cavity, the oil through pipeline of the closed cavity is shielded and sealed by the piston and the buffer pipeline of the closed cavity is communicated with the interior of the closed cavity; the piston is connected with a servomotor lifting rod in an assembling way.

Furthermore, the oil passage is provided with a throttling sheet, the aperture size of the oil passage is adjusted through the throttling sheet, and the flow rate of oil discharge and oil charge is controlled through the aperture size so as to meet the requirements of the cylindrical valve on different opening and closing times.

Furthermore, the oil through pipeline and the buffer pipeline are respectively positioned on two sides of the servomotor cylinder body in the radial direction, so that the pipeline is convenient to process and connect.

Furthermore, annular gaps are formed in the end portions of the two ends of the piston, when the piston moves to the limit position of any closed cavity, the annular gaps are communicated with the corresponding buffer pipelines, so that the buffer pipelines can still smoothly discharge or feed oil after the oil passage is blocked by the piston, and therefore the oil pressure of the closed cavity or the opened cavity is slowly changed, and the purpose of buffering is achieved.

Further, the hydraulic servomotor cylinder further comprises a servomotor A cylinder cover and a servomotor B cylinder cover which are respectively assembled at two ends of the servomotor cylinder body, and the servomotor lifting rod and the servomotor A cylinder cover are movably sleeved in a sealing mode.

Furthermore, the two closed cavities are respectively an opening cavity and a closing cavity, the closing cavity is formed between the cylinder cover of the servomotor A and the piston, and the opening cavity is formed between the cylinder cover of the servomotor B and the piston.

The utility model discloses in still provide a barrel valve with barrel valve connects power ware, including the barrel valve body, still include the barrel valve that is equipped with buffer who provides and connect the power ware, this barrel valve connect the servomotor lifting bar of power ware with barrel valve body be assembled between/be connected to drive this barrel valve body and make elevating movement, the motion of barrel valve body can satisfy the operation requirement that large-scale water pump needs the barrel valve to open and close fast, simultaneously, because this barrel valve connects the power ware to be provided with buffer, it can reduce the impact of valve body to top cap and seat ring when the barrel valve opens and close fast.

Furthermore, the cylindrical valve body is provided with a mounting hole matched with the servomotor lifting rod, one end of the servomotor lifting rod penetrates through the mounting hole and is locked on the cylindrical valve body through a connecting nut, so that the servomotor lifting rod is stably connected with the cylindrical valve body, the opening and closing of the cylindrical valve are switched through the cylindrical valve power connector, and the buffering effect is achieved.

The utility model has the advantages that:

1. adopt the utility model provides a cylindric valve connects power ware sets up logical oil pipe way and is provided with the throttle piece on leading to oil pipe way at the lateral wall both ends end position department of servomotor cylinder body, and reconnection is to oil pipe way system, and the aperture size accessible throttle piece that should lead to oil pipe way is adjusted to realize controlling the velocity of flow of producing oil and oil charge through the aperture size change, have different opening and close time through piston drive's cylindric valve body with the realization.

2. Adopt the utility model provides a cylindric valve power connector, because buffer line has still been seted up in the lateral wall both ends end position department of servomotor cylinder body, this buffer line's aperture is less than the aperture of logical oil pipe way, and when piston motion to extreme position, can shelter from sealed and can not carry out the shutoff to buffer line to logical oil pipe way, in order to realize that oil extraction speed descends rapidly, consequently, close the chamber and open the slow change of intracavity oil pressure, in order to reach the purpose of buffering, the impact of valve body to top cap and packing ring when can preventing that the cylindric valve from opening and close fast, the impact of piston butt joint power connector cylinder cap when preventing the servomotor from opening and close fast simultaneously.

3. Adopt the utility model provides a cylindric valve with cylindric valve power connector compares in prior art scheme, to the large-scale water pump that has set up the cylindric valve, owing to considered the buffer problem of cylindric valve power connector when opening and close fast to the instability problems such as vibration, noise that produce when having avoided realizing opening and close fast of large-scale water pump through this cylindric valve.

Drawings

FIG. 1 is a schematic view of the overall assembly of a barrel valve with a barrel valve force adapter according to the present invention;

fig. 2 is a partial schematic structural view of a barrel valve power receiver provided with a buffer device according to the present invention;

the drawings are labeled as follows:

1-servomotor cylinder body, 2-piston, 3-servomotor lifting rod, 4-piston position of cylinder valve in closed state, 5-first oil passage, 6-first buffer pipeline, 7-second buffer pipeline, 8-second oil passage, 9-annular gap, 10-servomotor B cylinder cover, 11-servomotor A cylinder cover, 12-top cover, 13-cylinder valve body and 14-connecting nut.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that the indication of the position or the positional relationship is based on the position or the positional relationship shown in the drawings, or the position or the positional relationship that the utility model is usually placed when using, or the position or the positional relationship that the skilled person conventionally understands, or the position or the positional relationship that the utility model is usually placed when using, and is only for the convenience of describing the present invention and simplifying the description, but does not indicate or suggest that the indicated device or element must have a specific position, be constructed and operated in a specific position, and thus, cannot be understood as limiting the present invention. Furthermore, the terms "first" and "second" are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases for a person of ordinary skill in the art; the drawings in the embodiments are provided to clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Example 1

As shown in fig. 1 and fig. 2, in the present embodiment, a cylinder valve force receiver with a buffer device is specifically provided, which includes a servomotor cylinder 1, and a piston 2 is movably assembled in the servomotor cylinder 1; a servomotor A cylinder cover 11 and a servomotor B cylinder cover 10 are respectively assembled at two ends of the servomotor cylinder body 1 in a sealing manner, the piston 2 is assembled and connected with a servomotor lifting rod 3, and the other end of the servomotor lifting rod 3 extends out of the servomotor cylinder body 1; the cylinder cover 11 of the servomotor A is provided with an assembling hole matched with the servomotor lifting rod 3, a plurality of sealing rings are arranged on the hole wall of the assembling hole, so that the servomotor lifting rod 3 is movably sealed and sleeved on the servomotor lifting rod 3, and the servomotor lifting rod 3 can freely move relative to the cylinder cover 11 of the servomotor A and can be relatively sealed with the cylinder cover 11 of the servomotor A.

The servomotor cylinder body 1 is divided into an opening cavity and a closing cavity by the piston 2, the closing cavity is formed between the servomotor A cylinder cover 11 and the piston 2, and the opening cavity is formed between the servomotor B cylinder cover 10 and the piston 2; the opening cavity and the closing cavity are respectively provided with a pair of oil through pipelines and buffer pipelines, wherein the closing cavity is respectively provided with a first oil through pipeline 5 and a first buffer pipeline 6, the opening cavity is respectively provided with a second oil through pipeline 8 and a second buffer pipeline 7, the aperture of the first oil through pipeline 5 is larger than that of the first buffer pipeline 6, similarly, the aperture of the second oil through pipeline 8 is larger than that of the second buffer pipeline 7, the first oil through pipeline 5, the first buffer pipeline 6, the second oil through pipeline 8 and the second buffer pipeline 7 are all connected to the same oil way system, the oil way system is existing mature equipment, and oil can be supplied or discharged according to requirements. Preferably, the first oil passage pipeline 5 and the first buffer pipeline 6 are respectively located on two sides of the servomotor cylinder body 1 in the radial direction, and the distance between the first buffer pipeline 6 and the servomotor a cylinder cover 11 is smaller than the distance between the first oil passage pipeline 5 and the servomotor a cylinder cover 11; the second oil passage 8 and the second buffer pipeline 7 are respectively located on two sides of the servomotor cylinder body 1 in the radial direction, and the distance between the second buffer pipeline 7 and the servomotor B cylinder cover 10 is smaller than the distance between the second oil passage 8 and the servomotor B cylinder cover 10.

Based on the structure, when the piston 2 moves to the limit position of the opening cavity, the first oil passage 5 is shielded and sealed by the piston 2, and the first buffer pipeline 6 is communicated with the inside of the opening cavity, similarly, when the piston 2 moves to the limit position of the closing cavity, the second oil passage 8 is shielded and sealed by the piston 2, and the second buffer pipeline 7 is communicated with the inside of the closing cavity, at the moment, the first buffer pipeline 6 or the second buffer pipeline 7 can still smoothly discharge oil or feed oil, so that a good buffer effect is achieved.

In order to realize that the first buffer pipeline 6 and the second buffer pipeline 7 can be respectively communicated with the inside of the opening cavity and the inside of the closing cavity when the piston 2 moves to the limit position, the end parts of the two ends of the piston 2 are respectively provided with an annular gap 9, the annular gaps 9 have proper length in the axial direction of the piston 2 so as to prevent the first buffer pipeline 6 or the second buffer pipeline 7 from being blocked in the movement process of the piston 2, and when the piston 2 moves to the limit position of the opening cavity, the second buffer pipeline 7 can be communicated with the annular gap 9 at the right end of the piston 2; when the piston 2 moves to the limit position of the closed cavity, the first buffer pipeline 6 can be communicated with the annular notch 9 at the left end of the piston 2, so that the function of slowly discharging oil is realized.

For satisfying the demand of cylindric valve to different opening and closing time be provided with the throttle plate on the oil pipe way, its aperture size is adjusted through the throttle plate, the velocity of flow of controlling oil or oil charge through the aperture size, can adopt simplest mode to the mounting structure of throttle plate, be connected with the sleeve pipe at the opening part of oil pipe way, be connected with oil piping system through this sleeve pipe and this intraductal equipment of being equipped with the throttle plate, the switching of different aperture sizes is realized to different throttle plates, of course, the throttle plate still can adopt other structural style to install, the mounting structure of throttle plate belongs to the conventional technical means in this field, no longer give unnecessary details here.

The working principle of the cylinder valve force receiver provided by the embodiment is as follows:

according to the requirements of the cylindrical valve on the opening and closing time, the throttle plates matched with the cylindrical valve are respectively assembled on the first oil passage 5 and the second oil passage 8, the aperture size is adjusted through the throttle plates, and the flow rate of oil discharge or oil charge is controlled through the aperture size.

When the cylinder valve servomotor is in a closing working condition, after the first oil passage 5 is gradually blocked along with the movement of the piston 2, the first buffer pipeline 6 can still smoothly discharge oil because the left end of the piston 2 is provided with the annular notch 9, so that the slow change of the oil pressure of a closing cavity is realized, and the aim of buffering is fulfilled;

when the cylinder valve servomotor is switched from a closing working condition to an opening working condition, because the first oil passage 5 is shielded by the piston 2 at the moment, the oil way system can slowly feed oil into the closing cavity through the first buffer pipeline 6, and after the first oil passage 5 is gradually exposed along with the movement of the piston 2, the oil way system can rapidly feed oil into the closing cavity through the first oil passage 5 until the piston 2 gradually shields the second oil passage 8, and because the right end of the piston 2 is also provided with the annular notch 9, the second buffer pipeline 7 can still smoothly discharge oil, so that the slow change of the oil pressure in the opening cavity is realized, and the aim of buffering is also fulfilled;

the cylinder valve is opened and closed by the circulation, and the oil pressure in the closing cavity and the opening cavity is slowly changed in the quick opening and closing process, so that the impact of the valve body on the top cover 12 and the gasket when the cylinder valve is quickly opened and closed can be prevented, and the impact of the piston 2 on a cylinder cover of the booster when the booster is quickly opened and closed can be prevented.

Example 2

As shown in fig. 1, in the case of the cylinder valve power receiver provided with the shock absorbing device in embodiment 1, in this embodiment, there is also provided a specific cylinder valve equipped with the cylinder valve power receiver provided with the shock absorbing device, which is used for meeting the operation requirement of a large water pump for quick opening and closing, and which has the following specific structure:

one end of the servomotor lifting rod 3 is assembled and connected with the cylindrical valve body 13, the cylindrical valve body 13 is driven to move up and down through the telescopic movement of the servomotor lifting rod 3, when the cylindrical valve body 13 moves up and down, the cylindrical valve can be switched between an opening state and a closing state, and further the operation requirement of the large-scale water pump for quick opening and closing of the cylindrical valve can be met through the state switching of the cylindrical valve body 13, and meanwhile, as the cylindrical valve power connector is provided with the buffer device, the impact force of the cylindrical valve body 13 on the top cover 12 when the cylindrical valve is quickly opened and closed can be reduced. In order to realize the stable connection between the cylindrical valve power connector and the cylindrical valve body, a mounting hole matched with the servomotor lifting rod 3 is formed in the cylindrical valve body 13, and after the servomotor lifting rod 3 penetrates through the mounting hole, a saddle-shaped gasket is arranged on the servomotor lifting rod, and then the servomotor lifting rod is locked on the cylindrical valve body 13 through a connecting nut 14.

The large water pump further comprises a top cover 12, the cylindrical valve power receiver provided with the buffer device in the embodiment 1 is arranged on the top cover 12 and is tightly connected through bolts, and the top cover 12 is used for realizing the stable assembly connection of the cylindrical valve power receiver. Preferably, the top cover 12 is arranged on one side of the cylinder cover 11 of the servomotor a, and a locking washer is arranged between the top cover 12 and the cylinder cover 11 of the servomotor a, so that the buffering effect achieved in the embodiment can prevent the impact of the valve body on the top cover 12 when the cylindrical valve is opened and closed quickly, and can prevent the impact of the piston 2 on the cylinder cover of the servomotor when the servomotor is opened and closed quickly.

The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.

Claims (8)

1. A cylindrical valve force receiver with a buffer device comprises a servomotor cylinder body and is characterized in that a piston is assembled in the servomotor cylinder body, the servomotor cylinder body is divided into two closed cavities by the piston, each closed cavity is provided with at least one pair of oil through pipelines and buffer pipelines, the aperture of each oil through pipeline is larger than that of each buffer pipeline, and the oil through pipelines and the buffer pipelines are both connected to the same oil way system; when the piston moves to the limit position of any closed cavity, the oil through pipeline of the closed cavity is shielded and sealed by the piston and the buffer pipeline of the closed cavity is communicated with the interior of the closed cavity; the piston is connected with a servomotor lifting rod in an assembling way.

2. The force adapter provided with a shock-absorbing device as claimed in claim 1, wherein said oil passage is provided with a throttle plate through which the size of the bore is adjusted.

3. The cylinder valve force acceptor provided with a buffer device according to claim 1, wherein the oil passage line and the buffer line are respectively located on both sides in a radial direction of the servomotor cylinder.

4. The force acceptor of claim 1, wherein said piston has an annular gap at each end, said annular gap communicating with its associated buffer line when said piston is moved to any of the closed chamber limit positions.

5. The cylinder valve force receiver with the buffer device as claimed in claim 1, further comprising a servomotor a cylinder cover and a servomotor B cylinder cover respectively assembled at two ends of the servomotor cylinder body, wherein the servomotor lifting rod and the servomotor a cylinder cover are movably and sealingly sleeved.

6. The cylinder valve force acceptor with buffer device as claimed in claim 5, wherein the two closed chambers are an open chamber and a closed chamber, the closed chamber is formed between the servomotor A cylinder cover and the piston, and the open chamber is formed between the servomotor B cylinder cover and the piston.

7. A barrel valve with a barrel valve actuator, comprising a barrel valve body, characterized in that it further comprises a barrel valve actuator provided with a damping device according to any of claims 1-6, the servomotor of which is fitted in connection with the barrel valve body and drives the latter in an up-and-down motion.

8. The barrel valve as claimed in claim 7, wherein the valve body of the barrel valve is formed with a mounting hole matching with the servomotor lever, and one end of the servomotor lever passes through the mounting hole and is locked to the valve body of the barrel valve by a coupling nut.

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