CN209943542U

CN209943542U - Adjustable automatic throttle valve

Info

Publication number: CN209943542U
Application number: CN201920629461.3U
Authority: CN
Inventors: 何涨化; 周纪平; 余佳佳
Original assignee: Zhejiang Opel Valve Manufacturing Co Ltd
Current assignee: Zhejiang Opel Valve Manufacturing Co Ltd
Priority date: 2019-05-05
Filing date: 2019-05-05
Publication date: 2020-01-14
Anticipated expiration: 2029-05-05

Abstract

The utility model belongs to the field of valves, in particular to an adjustable automatic throttle valve, which comprises a valve body and a valve block rotatably arranged in the valve body, wherein the outer side wall of the valve body is also fixedly provided with a transmission seat, and the transmission seat is provided with a servo motor and a hand wheel for driving the valve block to rotate; install first arc seat and second arc seat respectively with the both sides of valve block, make whole valve block tend to fluid, make the valve block at the during operation, and the resistance between the medium in the valve body is littleer, when the valve block is opened by encapsulated situation, the medium in the pipeline can flow along the second arc seat, along with the grow of angle, the medium can flow along first arc seat one side, for current valve block this moment, the whole resistance that receives of valve block can reduce by a wide margin, thereby make the atress of transfer line reduce, form the protection to the transmission structure, can guarantee accurate transmission, the life-span of transfer line has been increased.

Description

Adjustable automatic throttle valve

Technical Field

The utility model relates to a valve field specifically is an automatic choke valve with adjustable.

Background

The throttle valve is a valve for controlling fluid flow by changing throttle section or throttle length, and can be combined into a one-way throttle valve by connecting the throttle valve and the one-way valve in series, the throttle valve and the one-way throttle valve are simple flow control valves, in a constant displacement pump hydraulic system, the throttle valve is matched with an overflow valve, and can be combined into three throttle speed regulating systems, namely an oil inlet path throttle speed regulating system, an oil return path throttle speed regulating system and a bypass throttle speed regulating system, the throttle valve has no flow negative feedback function, cannot compensate speed instability caused by load change, and is generally only used in occasions with small load change or low requirement on speed stability.

The butterfly valve open angle can not accurately be controlled, when pipeline pressure is great, the valve plate produces the vibration easily, chinese patent discloses a butterfly valve (grant No. CN 206320315U) with adjustable open angle, this patent technique can insert the rotary rod in the valve rod, lie in the rotary rod below on the valve body and set up the disc, set up the pilot pin on the disc to the open angle of control butterfly valve that can be accurate, the vibration can not produce when fluid flows through, however, connection structure between the valve plate of this kind of valve and the transfer line, when the valve plate is opened and is closed, has great resistance to produce, the atress that makes the valve rod and the junction atress of valve rod and valve plate are bigger, easily make connecting piece fatigue damage, cause not hard up and fix a position inaccurate.

Accordingly, one skilled in the art provides an adjustable automatic throttle valve to solve the above problems in the background art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automatic choke valve with adjustable to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

an adjustable automatic throttle valve comprises a valve body and a valve block which is rotatably installed inside the valve body, wherein a transmission seat is fixedly installed on the outer side wall of the valve body, a servo motor and a hand wheel which are used for driving the valve block to rotate are installed on the transmission seat, a transmission rod is fixedly installed on one side wall of the valve block, the valve block is rotatably connected with the valve body through the transmission rod, a first arc seat is arranged on one side face, close to the transmission rod, of the valve block, the first arc seat is fixedly welded with the valve block, the transmission rod penetrates through the first arc seat and is fixedly connected with the first arc seat, a second arc seat is arranged on one side face, far away from the transmission rod, of the valve block, the second arc seat is fixedly welded with the valve block, a sealing ring seat is fixedly installed on the inner side wall of the valve body, and a sealing ring is sleeved, the sealing ring is detachably connected with the valve plate, and the valve plate is hermetically connected with the sealing ring seat through the sealing ring.

As a further aspect of the present invention: one side surface of the second arc seat is a plugging surface, and the curvature of the first arc seat is larger than that of the second arc seat.

As a further aspect of the present invention: the first arc seat and the second arc seat are both arc surfaces with smooth surfaces.

As a further aspect of the present invention: a plurality of drainage grooves which are distributed in parallel are formed in the outer side wall of the first arc seat, and the drainage grooves are parallel to the water flow direction in the valve body.

As a further aspect of the present invention: the flange is installed at the both ends of valve body, the flange with valve body fixed connection.

As a further aspect of the present invention: the servo motor with the junction of transmission seat is equipped with the motor mount pad, servo motor with pass through between the transmission seat motor mount pad fixed connection, the other end of transfer line stretches into to the inside of transmission seat.

As a further aspect of the present invention: the hand wheel rotates and installs on the transmission seat, just the output of hand wheel is fixed with the hand wheel lead screw, servo motor's output fixedly connected with motor lead screw, the transfer line with the hand wheel lead screw with the junction of motor lead screw all is equipped with the gear, the hand wheel lead screw with the motor lead screw all passes through the gear with the transfer line transmission is connected.

Compared with the prior art, the beneficial effects of the utility model are that:

install first arc seat and second arc seat respectively with the both sides of valve block, make whole valve block tend to fluid, make the valve block at the during operation, and the resistance between the medium in the valve body is littleer, when the valve block is opened by encapsulated situation, the medium in the pipeline can flow along the second arc seat, along with the grow of angle, the medium can flow along first arc seat one side, for current valve block this moment, the whole resistance that receives of valve block can reduce by a wide margin, thereby make the atress of transfer line reduce, form the protection to the transmission structure, can guarantee accurate transmission, the life-span of transfer line has been increased.

Drawings

FIG. 1 is a schematic view of an adjustable automatic throttle valve;

FIG. 2 is a schematic cross-sectional view of a valve plate of an adjustable automatic throttle valve;

FIG. 3 is a schematic perspective view of a valve plate of the adjustable automatic throttle valve;

FIG. 4 is a schematic diagram of the internal structure of the transmission seat in the adjustable automatic throttle valve.

In the figure: 1. a valve body; 11. a flange; 12. a seal ring seat; 2. a valve plate; 201. a drainage groove; 21. a first arc seat; 22. a second arc seat; 23. a seal ring; 3. a transmission seat; 31. a transmission rod; 311. a gear; 4. a servo motor; 41. a motor mounting seat; 42. a motor lead screw; 5. a hand wheel; 51. a hand wheel screw rod.

Detailed Description

Referring to fig. 1 to 4, in the embodiment of the present invention, an adjustable automatic throttle valve includes a valve body 1 and a valve plate 2 rotatably installed inside the valve body 1, a transmission seat 3 is further fixedly installed on an outer side wall of the valve body 1, the transmission seat 3 is installed with a servo motor 4 and a hand wheel 5 for driving the valve plate 2 to rotate, a transmission rod 31 is fixedly installed on a side wall of the valve plate 2, the valve plate 2 is rotatably connected to the valve body 1 through the transmission rod 31, a first arc seat 21 is installed on a side surface of the valve plate 2 close to the transmission rod 31, the first arc seat 21 is fixedly welded to the valve plate 2, the transmission rod 31 penetrates through the first arc seat 21 and is fixedly connected to the first arc seat 21, a second arc seat 22 is installed on a side surface of the valve plate 2 away from the transmission rod 31, the second arc seat 22 is fixedly welded to the valve plate 2, a sealing ring seat 12 is fixedly installed on an inner side wall, the sealing ring 23 is detachably connected with the valve plate 2, and the valve plate 2 is hermetically connected with the sealing ring seat 12 through the sealing ring 23.

In fig. 1: the valve comprises a valve body 1 and a valve block 2 rotatably installed inside the valve body 1, a transmission seat 3 is fixedly installed on the outer side wall of the valve body 1, a servo motor 4 and a hand wheel 5 for driving the valve block 2 to rotate are installed on the transmission seat 3, the servo motor 4 and the hand wheel 5 are arranged, the output end of the servo motor 4 can be driven to be in transmission with a transmission rod 31 by utilizing an automatic mode to control the opening and closing of a valve, the output end of the hand wheel 5 can be driven to be in transmission with the transmission rod 31 by utilizing a manual mode to rotate the hand wheel 5 to manually control the opening and closing of the valve, a motor installation seat 41 is arranged at the connection part of the servo motor 4 and the transmission seat 3, the servo motor 4 is fixedly connected with the transmission seat 3 through the motor installation seat 41, the installation of the servo motor 4 can be more stable, the other end of the transmission rod 31 extends into the transmission seat 3, flanges, through setting up flange 11, can make valve body 1 pass through and be connected between flange 11 and the pipeline, middle installation sealing washer 23 can guarantee the leakproofness between valve body 1 and the pipeline.

In fig. 2: one side surface of the second arc seat 22 is a blocking surface, the curvature of the first arc seat 21 is larger than that of the second arc seat 22, the first arc seat 21 and the second arc seat 22 are both arc surfaces with smooth surfaces, the first arc seat 21 and the second arc seat 22 are respectively arranged on two sides of the valve block 2, so that the whole valve block 2 tends to flow, the resistance between the valve block 2 and a medium in the valve body 1 is smaller when the valve block 2 works, when the valve plate 2 is opened from a sealing state, the medium in the pipeline flows along the second arc seat 22, and along with the increase of the angle, the medium flows along one side of the first arc seat 21, at this time, compared with the existing valve plate 2, the resistance force applied to the whole valve plate 2 is greatly reduced, so that the stress of the transmission rod 31 is reduced, the transmission structure is protected, the accurate transmission can be ensured, the service life of the transmission rod 31 is prolonged, since the valve sheet 2 is coated outside the transmission rod 31, the stress between the valve sheet 2 and the transmission rod 31 can be reduced.

In fig. 3: through having seted up a plurality of parallel distribution's drainage groove 201 on the lateral wall at first arc seat 21, and drainage groove 201 is parallel with the rivers direction in the valve body 1, can make valve block 2 when opening, the medium flows along the drainage groove 201 on first arc seat 21, makes the resistance that valve block 2 received reduce to make transfer line 31's atress reduce, form the protection to transmission structure, can guarantee accurate transmission.

In fig. 4: the hand wheel 5 is rotationally arranged on the transmission seat 3, a hand wheel screw 51 is fixed at the output end of the hand wheel 5, a motor screw 42 is fixedly connected at the output end of the servo motor 4, gears 311 are sleeved at the joints of the transmission rod 31, the hand wheel screw 51 and the motor screw 42 are in transmission connection with the transmission rod 31 through the gears 311, the hand wheel screw 51 is fixed at the output end of the hand wheel 5, when the hand wheel 5 rotates, the hand wheel screw rod 51 and the hand wheel 5 rotate synchronously, so that the hand wheel screw rod 51 is meshed with the gear 311 sleeved on the transmission rod 31 to drive the transmission rod 31 to rotate to complete manual control, the servo motor 4 can also be electrified, and the motor screw rod 42 at the output end of the servo motor is meshed with the gear 311 sleeved on the transmission rod 31 to drive the transmission rod 31 to rotate to realize electric control, wherein the model of the servo motor 4 is 130 ST-M06025.

The utility model discloses a theory of operation is: by arranging the servo motor 4 and the hand wheel 5, when the hand wheel 5 rotates, the hand wheel screw rod 51 and the hand wheel 5 synchronously rotate, so that the hand wheel screw rod 51 is meshed with the gear 311 sleeved on the transmission rod 31 to drive the transmission rod 31 to rotate to complete manual control, the servo motor 4 can be electrified, the motor screw rod 42 at the output end of the servo motor is meshed with the gear 311 sleeved on the transmission rod 31 to drive the transmission rod 31 to rotate to realize electric control, so that the resistance between the valve block 2 and a medium in the valve body 1 is smaller when the valve block 2 works, when the valve block 2 is opened in a sealed state, the medium in a pipeline can flow along the second arc seat 22, the medium can flow along one side of the first arc seat 21 along with the increase of the angle, and compared with the existing valve block 2, the resistance on the whole valve block 2 can be greatly reduced, so that the stress of the transmission rod 31 is reduced to protect, accurate transmission can be guaranteed, the service life of the transmission rod 31 is prolonged, and stress between the valve plate 2 and the transmission rod 31 can be reduced due to the fact that the valve plate 2 is coated outside the transmission rod 31.

Claims

1. The utility model provides an automatic throttling valve with adjustable, includes that valve body (1) and rotation are installed valve block (2) inside valve body (1), it has transmission seat (3) still to fix on the lateral wall of valve body (1), install on transmission seat (3) and be used for the drive valve block (2) pivoted servo motor (4) and hand wheel (5), its characterized in that, fixed mounting has transfer line (31) on a lateral wall of valve block (2), valve block (2) with pass through between valve body (1) transfer line (31) rotate to be connected, a side that valve block (2) are close to transfer line (31) is equipped with first arc seat (21), first arc seat (21) with valve block (2) welded fastening, just transfer line (31) run through first arc seat (21), and with first arc seat (21) fixed connection, keep away from valve block (2) a side of transfer line (31) is equipped with second arc seat (22), second arc seat (22) with valve block (2) welded fastening, fixed mounting has seal ring seat (12) on the inside wall of valve body (1), the cover is equipped with sealing washer (23) on the lateral wall of valve block (2), sealing washer (23) with the connection can be dismantled in valve block (2), valve block (2) with pass through between seal ring seat (12) sealing washer (23) sealing connection.

2. The adjustable automatic throttle valve according to claim 1, characterized in that a side surface of the second arc seat (22) is a blocking surface, and the curvature of the first arc seat (21) is larger than that of the second arc seat (22).

3. The adjustable automatic throttle valve according to claim 1, characterized in that the first arc seat (21) and the second arc seat (22) are both arc surfaces with smooth surfaces.

4. The adjustable automatic throttle valve according to claim 1, characterized in that a plurality of parallel drainage grooves (201) are formed on the outer side wall of the first arc seat (21), and the drainage grooves (201) are parallel to the water flow direction in the valve body (1).

5. The adjustable automatic throttle valve according to claim 1, characterized in that flanges (11) are installed at both ends of the valve body (1), and the flanges (11) are fixedly connected with the valve body (1).

6. The adjustable automatic throttle valve according to claim 1, characterized in that a motor mounting seat (41) is disposed at a connection position of the servo motor (4) and the transmission seat (3), the servo motor (4) and the transmission seat (3) are fixedly connected through the motor mounting seat (41), and the other end of the transmission rod (31) extends into the transmission seat (3).

7. The adjustable automatic throttling valve according to claim 6, characterized in that the hand wheel (5) is rotatably mounted on the transmission base (3), a hand wheel screw (51) is fixed to the output end of the hand wheel (5), a motor screw (42) is fixedly connected to the output end of the servo motor (4), a gear (311) is sleeved on the connection portion of the transmission rod (31) and the hand wheel screw (51) and the motor screw (42), and the hand wheel screw (51) and the motor screw (42) are in transmission connection with the transmission rod (31) through the gear (311).