CN210920171U

CN210920171U - Control device for flue gate valve

Info

Publication number: CN210920171U
Application number: CN201922065118.3U
Authority: CN
Inventors: 孙卫元; 张丽吟; 孙云川; 王长城; 李亮
Original assignee: Shandong Haike Environmental Protection Technology Co ltd
Current assignee: Shandong Haike Environmental Protection Technology Co ltd
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-07-03
Anticipated expiration: 2029-11-26

Abstract

The utility model discloses a control device for a flue flashboard valve, which mainly relates to the technical field of valve equipment and comprises a valve outer frame, a flashboard, a worm gear mechanism and an autorotation lead screw, wherein the worm gear mechanism is arranged at the upper end part of the valve outer frame, the upper end of the autorotation lead screw is matched and assembled with an output inner ring of the worm gear mechanism through a flat key, the autorotation lead screw is connected with a movable nut in a threaded manner, the movable nut is fixedly connected with a support frame, the movable nut support frame is fixedly connected with the flashboard, a sealing beam divides the valve outer frame into two parts, the flashboard is movably connected with the sealing beam in, the pressure detection device is arranged at the bottom of the outer frame of the valve, the flexible control of the whole opening and closing process of the valve is realized through the pressure detection device and the autorotation screw rod, the damage of the valve plate to the valve body caused by impact or vibration in the operation process is eliminated, and the safety of the valve in the operation process is improved.

Description

Control device for flue gate valve

Technical Field

The utility model relates to the technical field of valve equipment, specifically a controlling means for flue flashboard valve.

Background

On the flue valve of prior art, the hydro-cylinder is upright great in the height dimension at valve top, and the valve rod is connected to the pneumatic cylinder piston rod, because the floatability of hydro-cylinder piston causes the valve plate in the valve can not long-time accurate positioning, and the valve plate can cause the damage to valve body striking or vibration in the operation.

SUMMERY OF THE UTILITY MODEL

In view of the deficiencies and drawbacks in the prior art, the utility model provides a control device for flue flashboard valve.

In order to solve the technical problem, the utility model discloses a following technical scheme: a control device for a flue gate valve, characterized by: the valve outer frame is divided into two parts by a sealing beam, the flashboard is movably connected with the sealing beam in a sealing manner, and a pressure detection device is arranged at the bottom of the valve outer frame.

As the utility model discloses a further improvement, worm gear mechanism includes shell chamber, first bearing, second bearing, and first bearing, second bearing are inlayed in the left and right sides of shell intracavity wall, have the worm in pegging graft simultaneously in inside, and the worm cup joints the turbine, and the third bearing is placed inside the turbine to be in the same place with the cooperation assembly of rotation lead screw parallel key.

As a further improvement, in pressure detection device arranges valve outer frame bottom recess in, look for the recess bottom and be equipped with pressure sensors, pressure sensors passes through pressure spring and connects the pressure plate.

As a further improvement of the utility model, the worm is driven by a driving motor.

As a further improvement of the utility model, the movable nut and the flashboard are respectively fixedly connected with the supporting frame through bolts.

Compared with the prior art, the utility model discloses the beneficial effect who has does: the autorotation screw rod, the movable nut and the movable nut support frame are assembled together through flat key matching at the upper end of the autorotation screw rod and an output inner ring of the worm and gear elevator, the autorotation screw rod is connected with the movable nut in a threaded mode, the movable nut is fixedly connected with the movable nut support frame, and the movable nut support frame is fixedly connected with the flashboard.

Be equipped with pressure measurement in valve outer frame bottom, the flashboard descends to the bottom, because be equipped with the recess in the bottom, in the pressure measurement, the flashboard contacts pressure measurement, slowly push down the pressure plate downwards, transmit pressure to pressure sensor through the pressure spring of pressure plate bottom, pressure sensor contacts the signal of certain pressure, control driving motor rotates and has realized opening and close the flexible control of overall process to the valve, the valve plate has been eliminated and the valve body striking or the vibration caused the damage to the operation in-process, the security of valve operation in-process has been improved.

Drawings

The invention will be further described with reference to the accompanying drawings and specific embodiments:

fig. 1 is a schematic structural diagram of a control device for a flue gate valve according to the present invention;

fig. 2 is a schematic structural diagram of the worm and gear mechanism of the present invention;

fig. 3 is a schematic structural view of the pressure detecting device of the present invention;

in the figure: the device comprises a valve outer frame 1, a gate plate 2, a worm gear mechanism 3, a rotation screw rod 4, a movable nut 5, a support frame 6, a sealing beam 7, a pressure detection device 8, a pressure plate 81, a pressure spring 82, a pressure sensor 83, a groove 84, a shell cavity 9, a first bearing 10, a second bearing 11, a worm 12, a turbine 13, a third bearing 14 and a driving motor 15.

Detailed Description

In order to make the technical solution and the advantages of the present invention more clear and obvious, the present invention is further described in detail with reference to the following specific embodiments, it should be understood that the specific embodiments described herein are only used for understanding the present invention, and are not used for limiting the present invention, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention.

Fig. 1 is the utility model relates to a controlling means's for flue flashboard valve structural schematic diagram, including outer frame of valve 1, flashboard 2 and worm gear mechanism 3, rotation lead screw 4, worm gear mechanism 3 installs the upper end at outer frame of valve 1, rotation lead screw 4 upper end and worm gear mechanism 3's output inner ring are in the same place through parallel key cooperation assembly, rotation lead screw 4 and movable nut 5 are threaded connection, movable nut 5 and support frame 6 fixed connection, movable nut support frame 6 and flashboard 2 fixed connection, seal beam 7 is the outer frame of valve 1 into two parts, flashboard 2 and seal beam 7 seal swing joint, be equipped with pressure measurement device 8 in valve outer frame 1 bottom, worm 12 passes through driving motor 15 drive, movable nut 5, flashboard 2 passes through the bolt respectively with support frame 6 fixed connection together.

Fig. 2 is the utility model discloses worm gear mechanism's structural schematic, worm gear mechanism 3 includes shell chamber 9, first bearing 10, second bearing 11, and first bearing 10, second bearing 11 are inlayed in the left and right sides of shell chamber 9 inner wall, have simultaneously pegged graft in inside worm 12, and worm 12 cup joints turbine 13, and third bearing 14 is arranged in inside turbine 13 to be in the same place with 4 parallel key cooperations of rotation lead screw assemblies.

Fig. 3 is the structural schematic diagram of the pressure detection device of the present invention, the pressure detection device 8 is arranged in the groove 84 at the bottom of the valve outer frame 1, and the bottom of the groove is provided with a pressure sensor 83, and the pressure sensor 83 is connected to the pressure plate 81 through a pressure spring 82.

When the automatic valve works, the rotation screw rod, the movable nut and the movable nut supporting frame are assembled together through flat key matching, the upper end of the rotation screw rod is connected with an output inner ring of the worm gear elevator, the rotation screw rod is connected with the movable nut in a threaded mode, the movable nut is fixedly connected with the movable nut supporting frame, and the movable nut supporting frame is fixedly connected with the flashboard.

Be equipped with pressure measurement 8 in valve outer frame 1 bottom, flashboard 2 drops to the bottom, because be equipped with the recess in the bottom, in the pressure measurement 8, flashboard 2 contacts pressure measurement 8, push down the pressure plate slowly downwards, pressure spring 82 through the pressure plate 81 bottom transmits pressure to pressure-sensitive inductor 83, pressure-sensitive inductor 83 contacts the signal of certain pressure, control driving motor 15 rotates and has realized opening and close the flexible control of overall process to the valve, eliminated the valve plate and made the damage to valve body striking or vibration at the operation in-process, the security of valve operation in-process has been improved.

It is noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Claims

1. A control device for a flue gate valve, characterized by: the automatic valve outer frame structure comprises a valve outer frame (1), a flashboard (2), a worm gear mechanism (3), an autorotation screw rod (4), the worm gear mechanism (3) is installed at the upper end of the valve outer frame (1), the upper end of the autorotation screw rod (4) and an output inner ring of the worm gear mechanism (3) are assembled together through flat key matching, the autorotation screw rod (4) and a movable nut (5) are connected in a threaded mode, the movable nut (5) and a support frame (6) are fixedly connected, the movable nut support frame (6) and the flashboard (2) are fixedly connected, a sealing cross beam (7) divides the valve outer frame (1) into two parts, the flashboard (2) and the sealing cross beam (7) are movably connected in a sealing mode, and a pressure detection device (8) is.

2. A control device for a flue gate valve according to claim 1, wherein: the worm and gear mechanism (3) comprises a shell cavity (9), a first bearing (10) and a second bearing (11), the first bearing (10) and the second bearing (11) are embedded on the left side and the right side of the inner wall of the shell cavity (9), a worm (12) is inserted in the first bearing and the second bearing simultaneously, the worm (12) is sleeved with a turbine (13), and a third bearing (14) is arranged in the turbine (13) and is assembled with a rotation screw rod (4) in a flat key matching mode.

3. A control device for a flue gate valve according to claim 1, wherein: the pressure detection device (8) is arranged in a groove (84) in the bottom of the outer valve frame (1), a pressure sensor (83) is arranged at the bottom of the groove, and the pressure sensor (83) is connected with the pressure plate (81) through a pressure spring (82).

4. A control device for a flue gate valve according to claim 1, wherein: the worm (12) is driven by a drive motor (15).

5. A control device for a flue gate valve according to claim 1, wherein: the movable nut (5) and the flashboard (2) are respectively fixedly connected with the support frame (6) through bolts.