CN215721168U

CN215721168U - Valve gear box of high accurate control valve moment of torsion

Info

Publication number: CN215721168U
Application number: CN202122366225.7U
Authority: CN
Inventors: 黄正通; 郑中华; 金欣欣; 唐翔翔
Original assignee: Zhejiang Xunjie Transmission Technology Co ltd
Current assignee: Zhejiang Xunjie Transmission Technology Co ltd
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2022-02-01
Anticipated expiration: 2031-09-28

Abstract

The utility model discloses a valve gear box for controlling valve torque with high accuracy, which comprises a box body, wherein a secondary reduction box body is fixedly arranged on one side of the box body through two cylindrical pins, a box body top cover is fixedly arranged on the top of the box body through a box body fixing bolt, two plane bearings are symmetrically arranged on the inner walls of two sides of the box body, the inner rings of the two plane bearings are fixedly connected with the same worm, and a worm wheel meshed with the worm is rotatably connected to the inner wall of the bottom of the box body through a shaft.

Description

Valve gear box of high accurate control valve moment of torsion

Technical Field

The utility model relates to the technical field of valves, in particular to a valve gear box for controlling valve torque with high precision.

Background

The valves are pipe fittings for opening and closing pipes, controlling flow direction, regulating and controlling parameters (temperature, pressure and flow) of conveying media, and can be divided into shut-off valves, check valves, regulating valves and the like according to functions thereof, the valves are control parts in a fluid conveying system, have functions of stopping, regulating, guiding, preventing backflow, stabilizing pressure, shunting or overflowing pressure relief and the like, are used for valves of the fluid control system, and are various from the simplest stop valves to various valves used in a very complicated automatic control system, the variety and specification of the valves are quite various, and the valves can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metals, radioactive media and the like.

The gear box of valve is important drive disk assembly in the valve, and the precision of its inside gear has decided the accuracy of gear, has also decided the precision to the valve regulation, and valve gear box among the prior art, shell be integrated into one piece, and be not convenient for dismantle, change and the adjustment to inside part are comparatively difficult, lack some convenience designs simultaneously, are unfavorable for using, so we provide a valve gear box of high accurate control valve moment of torsion for solve the problem that provides.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects that a valve gear box cannot be disassembled and is inconvenient to use in the prior art, and provides a valve gear box for controlling valve torque with high precision.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a valve gear box of high accurate control valve moment of torsion, includes the box, there is the second grade reduction box one side of box through two cylindric lock fixed mounting, there is the box top cap at the top of box through box fixing bolt fixed mounting, the both sides inner wall symmetry of box is provided with two plane bearings, two the same worm of inner circle fixedly connected with of plane bearing, the bottom inner wall of box has the worm wheel with worm engaged with through axle swivelling joint, the sealed end cover oil blanket that has of one side that the second grade reduction box was kept away from to the box, be provided with in the second grade reduction box and be used for driving the worm and carry out pivoted adjusting part, the opening part of second grade reduction box has the second grade reduction box lid through fixing bolt fixed mounting, the sealed conflict of opening part of second grade reduction box lid and second grade reduction box.

Preferably, the adjusting part includes that it runs through the gear shaft of rotation connection keeping away from second grade reduction box one side at the second grade reduction box lid, it is connected with the input shaft to run through the fixed connection in the worm, the one end of input shaft extends to the inside of second grade reduction box and fixed cover is equipped with the straight-teeth gear, straight-teeth gear and gear shaft mesh mutually, the opening of second grade reduction box lid is sealed has the skeleton oil blanket, the gear shaft runs through the skeleton oil blanket.

Preferably, one side of the second-stage reduction box cover, which is close to the second-stage reduction box body, is provided with a deep groove ball bearing, and the deep groove ball bearing is fixedly connected with an inner ring sleeve of the gear shaft.

Preferably, a lock disc is fixedly sleeved at one end of the gear shaft, which is positioned at the outer side of the secondary reduction box body.

Preferably, one side of the secondary reduction box cover, which is far away from the secondary reduction box body, is fixedly connected with a lock hook.

Preferably, a valve position indicator is fixedly mounted on the top of the box body through an indicator screw.

Preferably, one side that the worm was kept away from to the box runs through threaded connection and has two adjusting bolt, one side of worm wheel and one of them adjusting bolt are located the one end of box and closely contradict, threaded sleeve is equipped with the nut on adjusting bolt's the outer wall, the one end fixedly connected with spiral shell lid of box is kept away from to the nut.

Preferably, the input shaft and the spur gear are fixedly connected through a flat key.

Preferably, one side that the lock dish was kept away from to the latch hook runs through sliding connection and has the fixed pin, the one end fixedly connected with curb plate of latch hook is kept away from to the fixed pin, the cover is equipped with the extension spring on the outer wall of fixed pin, one side fixed connection that one end and the latch hook of extension spring are close to the fixed pin, one side fixed connection that the other end and the curb plate of extension spring are close to the latch hook, the one side annular that the lock dish is close to the fixed pin is arranged and is provided with a plurality ofly and the fixed orifices of fixed round pin looks adaptation.

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

1. according to the utility model, the fixing pin is pulled to be separated from the clamping with the fixing hole, the tension spring is stretched together to release the brake on the lock disc, the lock disc is rotated to drive the gear shaft to rotate, the gear shaft rotates to drive the spur gear to rotate, the spur gear rotates to drive the input shaft to rotate, the input shaft rotates to drive the worm to rotate, the worm rotates to drive the worm wheel to rotate, the worm wheel is adjusted by the method, after the adjustment is completed, the fixing pin is loosened, the fixing pin automatically resets due to the elasticity of the tension spring and is clamped with the fixing hole again to brake the lock disc, the nut is rotated to release the brake on the adjusting bolt, the adjusting bolt is rotated to enable the adjusting bolt to extend out of the box body by a certain length, the length of the adjusting bolt located at one end of the box body is reduced, and the rotation angle of the worm wheel can be adjusted by the method.

2. According to the utility model, the position of the valve can be clearly known through the valve position indicator, the end cover oil seal is arranged on one side of the box body and is used for preventing oil and water in the box body from leaking out, and when the lock disc is in contact with the lock hook, the lock disc can be abutted against the lock disc to prevent the lock disc from rotating, so that the lock disc is braked.

3. According to the utility model, the fixing bolts are removed, the secondary reduction box cover is detached, the devices in the secondary reduction box body can be replaced and maintained, and the input shaft is provided with the flat key connected with the straight gear, so that the tightness of the straight gear and the input shaft is improved.

The valve position indicator is simple in structure, the worm gear can be driven to rotate by rotating the gear shaft, the effect of limiting the rotation angle of the worm gear can be achieved by adjusting the lengths of the two adjusting bolts, the fixing pin is clamped with the fixing hole to prevent the gear shaft from rotating, the gear shaft is braked, and the valve position indicator at the top plays a role in accurately positioning a valve.

Drawings

FIG. 1 is a top cross-sectional view of a valve gear box for high precision control of valve torque according to the present invention;

FIG. 2 is a top view of a valve gearbox for high precision control of valve torque according to the present invention;

FIG. 3 is a front view of a valve gear box for high precision control of valve torque according to the present invention;

FIG. 4 is a three-dimensional schematic view of a locking disk of a valve gearbox for controlling valve torque with high precision according to the present invention;

fig. 5 is an enlarged view of a portion a of a valve gear box for controlling valve torque with high accuracy according to the present invention.

In the figure: 1. a box body; 2. adjusting the bolt; 3. a nut; 4. a screw cap; 5. a worm gear; 6. end cover oil seal; 7. an input shaft; 8. a flat bearing; 9. a worm; 10. a cylindrical pin; 11. a secondary reduction box body; 12. a spur gear; 13. fixing the bolt; 14. a secondary gearbox cover; 15. a flat bond; 16. a deep groove ball bearing; 17. framework oil seal; 18. a gear shaft; 19. a lock disc; 20. a top cover of the box body; 21. a box body fixing bolt; 22. an indicator screw; 23. a valve position indicator; 24. a latch hook; 25. a fixing pin; 26. a tension spring; 27. and (7) fixing holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Example one

Referring to fig. 1-5, a valve gear box for controlling torque of a valve with high accuracy comprises a box body 1, a second-stage reduction box body 11 is fixedly installed on one side of the box body 1 through two cylindrical pins 10, a box body top cover 20 is fixedly installed on the top of the box body 1 through a box body fixing bolt 21, two plane bearings 8 are symmetrically arranged on inner walls of two sides of the box body 1, the same worm 9 is fixedly connected to inner rings of the two plane bearings 8, a worm wheel 5 meshed with the worm 9 is rotatably connected to the inner wall of the bottom of the box body 1 through a shaft, an end cover oil seal 6 is sealed on one side, far away from the second-stage reduction box body 11, an adjusting assembly used for driving the worm 9 to rotate is arranged in the second-stage reduction box body 11, a second-stage reduction box cover 14 is fixedly installed at an opening of the second-stage reduction box body 11 through a fixing bolt 13, and the second-stage reduction box cover 14 is in sealed contact with the opening of the second-stage reduction box body 11.

Example two

The embodiment is improved on the basis of the first embodiment: referring to fig. 1-5, a valve gear box for controlling torque of a valve with high accuracy comprises a box body 1, a valve position indicator 23 is fixedly installed at the top of the box body 1 through an indicator screw 22, the position of the valve can be clearly known through the valve position indicator 23, a secondary reduction box body 11 is fixedly installed at one side of the box body 1 through two cylindrical pins 10, a box body top cover 20 is fixedly installed at the top of the box body 1 through a box body fixing bolt 21, two plane bearings 8 are symmetrically arranged on the inner walls of two sides of the box body 1, the inner rings of the two plane bearings 8 are fixedly connected with a same worm 9, a worm wheel 5 meshed with the worm 9 is rotatably connected to the inner wall of the bottom of the box body 1 through a shaft, two adjusting bolts 2 are connected to one side of the box body 1 far away from the worm 9 through threads, one side of the worm wheel 5 and one end of the adjusting bolts 2 are positioned at one end of the box body 1 and tightly abutted against each other, the outer wall of the adjusting bolt 2 is sleeved with a nut 3 in a threaded manner, one end of the nut 3, far away from the box body 1, is fixedly connected with a screw cap 4, the nut 3 is rotated to relieve the brake of the adjusting bolt 2, the adjusting bolt 2 is rotated to enable the adjusting bolt 2 to extend out of the box body 1 by a certain length, the length of the adjusting bolt 2, which is positioned at one end of the box body 1, is reduced, the rotating angle of a worm wheel 5 can be adjusted by the method, one side, far away from the second-stage reduction box body 11, of the box body 1 is sealed with an end cover oil seal 6, one side of the box body 1 is provided with the end cover oil seal 6 for preventing oil and water in the box body 1 from leaking, an adjusting component for driving a worm 9 to rotate is arranged in the second-stage reduction box body 11, the adjusting component comprises a gear shaft 18 which is in penetrating and rotating connection with one side, far away from the second-stage reduction box body 11, of the second-stage reduction box cover 14, and one side, which is far away from the second-stage reduction box body 11, is fixedly connected with a lock hook 24, the fixed cover of gear shaft 18 in the second stage reduction box 11 outside one end is equipped with lock dish 19, one side that lock dish 19 was kept away from to latch hook 24 runs through sliding connection and has fixed pin 25, the one end fixedly connected with curb plate of latch hook 24 is kept away from to fixed pin 25, the cover is equipped with extension spring 26 on the outer wall of fixed pin 25, one side fixed connection that one end and latch hook 24 of extension spring 26 are close to fixed pin 25, one side fixed connection that the other end and the curb plate of extension spring 26 are close to latch hook 24, one side annular that lock dish 19 is close to fixed pin 25 arranges and is provided with a plurality of fixed orificess 27 with fixed pin 25 looks adaptation, one side that second stage reduction box lid 14 is close to second stage reduction box 11 is provided with deep groove ball bearing 16, the inner circle cover of deep groove ball bearing 16 and gear shaft 18 establishes fixed connection, run through fixed connection has input shaft 7 in the worm 9, one end of input shaft 7 extends to the inside of second stage reduction box 11 and fixed cover is equipped with straight gear 12, the input shaft 7 is tightly connected with the straight gear 12 through the flat key 15, the flat key 15 is arranged on the input shaft 7 and is connected with the straight gear 12, the tightness of connection of the straight gear 12 and the input shaft 7 is improved, the straight gear 12 is meshed with the gear shaft 18, the straight gear 12 drives the straight gear 12 to rotate, the straight gear 12 rotates to drive the input shaft 7 to rotate, the input shaft 7 rotates to drive the worm 9 to rotate, the worm 9 rotates to drive the worm wheel 5 to rotate, the worm wheel 5 is adjusted through the method, the opening of the secondary reduction box cover 14 is sealed with the framework oil seal 17, the gear shaft 18 penetrates through the framework oil seal 17, the secondary reduction box cover 14 is fixedly arranged at the opening of the secondary reduction box body 11 through the fixing bolt 13, and the opening of the secondary reduction box cover 14 and the opening of the secondary reduction box body 11 are sealed and abutted.

The working principle is as follows: pulling the fixing pin 25 to be disengaged from the fixing hole 27, stretching the tension spring 26 together to release the braking of the lock disc 19, rotating the lock disc 19 to drive the gear shaft 18 to rotate, rotating the gear shaft 18 to drive the spur gear 12 to rotate, rotating the spur gear 12 to drive the input shaft 7 to rotate, rotating the input shaft 7 to drive the worm 9 to rotate, rotating the worm 9 to drive the worm wheel 5 to rotate, adjusting the worm wheel 5 by the method, loosening the fixing pin 25 after the adjustment is completed, automatically resetting the fixing pin 25 due to the elastic force of the tension spring 26 to be re-engaged with the fixing hole 27 to brake the lock disc 19, rotating the nut 3 to release the braking of the adjusting bolt 2, rotating the adjusting bolt 2 to enable the adjusting bolt 2 to extend out of the box body 1 by a certain length, reducing the length of the adjusting bolt 2 at one end of the box body 1, adjusting the rotation angle of the worm wheel 5 by the method, and clearly knowing the position of the valve by the valve position indicator 23, one side of box 1 has set up end cover oil blanket 6 for prevent that the inside profit of box 1 from spilling, demolish fixing bolt 13 and lift off second grade reduction case lid 14, can change and maintain the inside device of second grade reduction case 11, set up flat key 15 on the input shaft 7 and be connected with straight-teeth gear 12, increase the compactness that straight-teeth gear 12 and input shaft 7 are connected.

However, as is well known to those skilled in the art, the working principle and wiring method of the valve position indicator 23 are common and are conventional means or common knowledge, and will not be described herein, and those skilled in the art can make any selection according to their needs or convenience.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A valve gear box for controlling valve torque with high precision comprises a box body (1) and is characterized in that a secondary reduction box body (11) is fixedly installed on one side of the box body (1) through two cylindrical pins (10), a box body top cover (20) is fixedly installed on the top of the box body (1) through a box body fixing bolt (21), two plane bearings (8) are symmetrically arranged on inner walls on two sides of the box body (1), the inner rings of the two plane bearings (8) are fixedly connected with a same worm (9), a worm wheel (5) meshed with the worm (9) is rotatably connected to the inner wall of the bottom of the box body (1) through a shaft, an end cover oil seal (6) is sealed on one side, far away from the secondary reduction box body (11), of the box body (1), and an adjusting component for driving the worm (9) to rotate is arranged in the secondary reduction box body (11), the opening part of second grade reduction box (11) passes through fixing bolt (13) fixed mounting has second grade reduction box lid (14), the opening part sealing conflict of second grade reduction box lid (14) and second grade reduction box (11).

2. The valve gear box for controlling the torque of the valve with high precision as claimed in claim 1, wherein the adjusting component comprises a gear shaft (18) which is connected to one side of the second-stage reduction box cover (14) far away from the second-stage reduction box body (11) in a penetrating and rotating mode, an input shaft (7) is fixedly connected to the inside of the worm (9) in a penetrating mode, one end of the input shaft (7) extends to the inside of the second-stage reduction box body (11) and is fixedly sleeved with a straight gear (12), the straight gear (12) is meshed with the gear shaft (18), a framework oil seal (17) is sealed at an opening of the second-stage reduction box cover (14), and the gear shaft (18) penetrates through the framework oil seal (17).

3. The valve gear box with the high-precision control of the valve torque as claimed in claim 2, characterized in that one side of the secondary reduction box cover (14) close to the secondary reduction box body (11) is provided with a deep groove ball bearing (16), and the deep groove ball bearing (16) is fixedly connected with an inner ring of the gear shaft (18) in a sleeved mode.

4. The valve gear box with high precision for controlling the torque of the valve as claimed in claim 2, wherein the end of the gear shaft (18) located outside the second reduction box body (11) is fixedly provided with a locking disc (19).

5. A valve gear box with high precision control valve torque according to claim 2, characterized in that the side of the secondary reduction box cover (14) far away from the secondary reduction box body (11) is fixedly connected with a locking hook (24).

6. A valve gear box with high precision control valve torque according to claim 1, characterized in that the top of the box body (1) is fixedly provided with a valve position indicator (23) through an indicator screw (22).

7. The valve gear box for controlling the torque of the valve with high precision according to claim 1, characterized in that one side of the box body (1) far away from the worm (9) is connected with two adjusting bolts (2) through threads, one side of the worm wheel (5) and one end of one of the adjusting bolts (2) located on the box body (1) are tightly butted against each other, a nut (3) is sleeved on the outer wall of the adjusting bolt (2) in a threaded manner, and one end of the nut (3) far away from the box body (1) is fixedly connected with a screw cap (4).

8. A valve gear box with high precision control of valve torque according to claim 2, characterized in that the input shaft (7) and the spur gear (12) are firmly connected by a flat key (15).

9. The valve gear box of high accurate control valve moment of torsion of claim 5, characterized in that, one side that lock dish (19) was kept away from to latch hook (24) runs through sliding connection and has fixed pin (25), the one end fixedly connected with curb plate that lock hook (24) was kept away from to fixed pin (25), the cover is equipped with extension spring (26) on the outer wall of fixed pin (25), one side fixed connection that one end and latch hook (24) of extension spring (26) are close to fixed pin (25), the other end and the curb plate of extension spring (26) are close to one side fixed connection of latch hook (24), one side annular that lock dish (19) are close to fixed pin (25) is arranged and is provided with a plurality ofly and fixed pin (25) looks adaptation fixed orifices (27).