CN217634196U

CN217634196U - Adjustable valve positioner fixing device

Info

Publication number: CN217634196U
Application number: CN202220811468.9U
Authority: CN
Inventors: 周文俊
Original assignee: Changsha Wangcheng Water Supply Co ltd
Current assignee: Changsha Wangcheng Water Supply Co ltd
Priority date: 2022-04-10
Filing date: 2022-04-10
Publication date: 2022-10-21
Anticipated expiration: 2032-04-10

Abstract

An adjustable valve positioner fixing device is provided with a driving mechanism, a horizontal positioning rod, a vertical positioning rod, a gear box, a positioner fixing plate, an adapter, a horizontal transmission shaft and a vertical transmission shaft; the side part of the driving mechanism is connected with the gear box through a horizontal positioning rod; the lower end of the vertical positioning rod is connected with a gear box, the upper end of the vertical positioning rod is connected with a positioner fixing plate, and a valve positioner is arranged at the upper end of the positioner fixing plate; one end of the adapter is connected with a driving shaft of the driving mechanism, and the other end of the adapter is connected with the horizontal transmission shaft; the horizontal transmission shaft is provided with a first bevel gear; the bottom of the vertical transmission shaft is provided with a second bevel gear, the first bevel gear is meshed with the second bevel gear, and the top of the vertical transmission shaft is connected with a valve positioner. The utility model discloses can once only solve the locator and be flooded the problem, ensure the even running of relevant equipment, reduce maintenance work volume and cost of maintenance, also can be used to other valves of taking the locator, the transmission precision is high, and is efficient, compact structure, the reliable operation, longe-lived, application scope is wide.

Description

Adjustable valve positioner fixing device

Technical Field

The utility model relates to a fixing device especially relates to a valve locator fixing device with adjustable.

Background

At present, the valve positioner mainly has the following functions:

(1) The device is used for an important adjusting system with high requirements on adjusting quality so as to improve the positioning accuracy and reliability of the adjusting valve.

(2) The valve is used for occasions with large pressure difference (delta p >1 MPa) between two ends of the valve. The output force of the actuating mechanism is increased by improving the pressure of the air source, so that the unbalanced force of the liquid to the valve core is overcome, and the stroke error is reduced.

(3) When the medium to be regulated is high temperature, high pressure, low temperature, toxic, inflammable and explosive, the stuffing is often pressed tightly to prevent leakage, so that the friction between the valve rod and the stuffing is great and the positioner is used to overcome time lag.

(4) When the medium to be regulated is viscous fluid or contains solid suspended matter, the resistance of the medium to the movement of the valve rod can be overcome by using the positioner.

(5) The valve is used for a regulating valve with a large caliber (Dg >100 mm) to increase the output thrust of an actuator.

(6) When the distance between the regulator and the actuator is more than 60m, the positioner can overcome the transmission lag of the control signal and improve the action response speed of the valve.

(7) For improving the flow characteristics of the regulator valve.

(8) When one regulator controls two actuators to implement range control, two positioners can be used to respectively receive low input signals and high input signals, so that one actuator can make low-range action and another can make high-range action, so that the range regulation can be formed.

At the present stage, due to the design reason of the water drainage channel of the carbon filter tank of the sand filter tank of the water plant, the situation of unsmooth water drainage often occurs, so that the valve positioner of the water drainage valve is flooded for a long time and is splashed by water to cause the internal water inflow damage of the valve positioner, in addition, the incoming line voltage of the valve positioner is 220V, and equipment tripping and electric shock accidents are easily caused under the flooding condition of the valve positioner. The valve positioner is flooded, so that the stable operation of the carbon filter of the sand filter cannot be ensured, the safe production is influenced, and the maintenance workload and the maintenance cost are increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a valve positioner fixing device with adjustable, solve the valve positioner and flooded the safety that causes and the unable normal operating's of relevant equipment problem.

The utility model provides an above-mentioned technical problem's technical scheme as follows: an adjustable valve positioner fixing device comprises a driving mechanism, a horizontal positioning rod, a vertical positioning rod, a gear box, a positioner fixing plate, an adapter, a horizontal transmission shaft and a vertical transmission shaft; the side part of the driving mechanism is connected with the gear box through the horizontal positioning rod; the lower end of the vertical positioning rod is connected with the gear box, the upper end of the vertical positioning rod is connected with the positioner fixing plate, and the upper end of the positioner fixing plate is provided with a valve positioner; one end of the adapter is connected with a driving shaft of the driving mechanism, and the other end of the adapter is connected with the horizontal transmission shaft; the horizontal transmission shaft is provided with a first bevel gear; the bottom of the vertical transmission shaft is provided with a second bevel gear, the first bevel gear is meshed with the second bevel gear, and the top of the vertical transmission shaft is connected with the valve positioner through a transition piece.

As the preferred scheme of the fixing device of the adjustable valve positioner, the driving mechanism adopts a rotating cylinder, and the adapter is connected with a driving shaft of the rotating cylinder.

As a preferred scheme of the fixing device of the adjustable valve positioner, the number of the horizontal positioning rods is four, and the four horizontal positioning rods respectively penetrate through four corners of the side part of the gear box;

the contact position of the horizontal positioning rod and the gear box is fixed by a nut.

As a preferred scheme of the fixing device of the adjustable valve positioner, the number of the vertical positioning rods is four, and the four vertical positioning rods respectively penetrate through four corners of the upper end and the lower end of the gear box;

the contact position of the vertical positioning rod and the gear box is fixed by a nut;

the vertical positioning rod and the horizontal positioning rod are mutually avoided.

As the preferable scheme of the fixing device of the adjustable valve positioner, the fixing device further comprises a middle positioning plate, and four pairs of vertical positioning rods respectively penetrate through four corners of the middle positioning plate.

As a preferable scheme of the fixing device of the adjustable valve positioner, the vertical transmission shaft penetrates through the middle positioning plate, and an oilless bearing assembly is arranged at the contact position of the vertical transmission shaft and the middle positioning plate.

As a preferable scheme of the adjustable valve positioner fixing device, the top of the vertical transmission shaft penetrates through the positioner fixing plate and then is connected with a feedback lever of the valve positioner.

The utility model is provided with a driving mechanism, a horizontal positioning rod, a vertical positioning rod, a gear box, a positioner fixing plate, an adapter, a horizontal transmission shaft and a vertical transmission shaft; the side part of the driving mechanism is connected with the gear box through a horizontal positioning rod; the lower end of the vertical positioning rod is connected with a gear box, the upper end of the vertical positioning rod is connected with a positioner fixing plate, and a valve positioner is arranged at the upper end of the positioner fixing plate; one end of the adapter is connected with a driving shaft of the driving mechanism, and the other end of the adapter is connected with the horizontal transmission shaft; the horizontal transmission shaft is provided with a first bevel gear; the bottom of the vertical transmission shaft is provided with a second bevel gear, the first bevel gear is meshed with the second bevel gear, and the top of the vertical transmission shaft is connected with a valve positioner. The utility model discloses can once only solve the locator and be flooded and lead to into water the damage problem by water splash, ensure the even running of relevant equipment, reduce maintenance work volume and cost of maintenance, this product also can be used to other all valves of taking the locator after suitably changing the size, change gear drive direction in addition and increase the gear box and can realize from there being the multi-angle transmission, whole fixing device has characteristics such as transmission precision height, efficient, compact structure, reliable operation, longe-lived, application scope is wide, the practicality is strong.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so that those skilled in the art can understand and read the present invention, and do not limit the conditions for implementing the present invention, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the functions and purposes of the present invention, should still fall within the scope of the present invention.

Fig. 1 is a schematic perspective view of an adjustable valve positioner fixing device provided in an embodiment of the present invention;

fig. 2 is a schematic front view of an adjustable valve positioner fixing device according to an embodiment of the present invention;

fig. 3 is a schematic side view of the adjustable valve positioner fixing device according to an embodiment of the present invention.

In the figure, 1, a driving mechanism; 2. a horizontal positioning rod; 3. a vertical positioning rod; 4. a gear case; 5. a locator fixing plate; 6. an adapter; 7. a horizontal transmission shaft; 8. a vertical transmission shaft; 9. a valve positioner; 10. a middle positioning plate; 11. an oilless bearing assembly; 12. a first bevel gear; 13. a second bevel gear.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1, 2 and 3, an embodiment of the present invention provides an adjustable valve positioner fixing device, including a driving mechanism 1, a horizontal positioning rod 2, a vertical positioning rod 3, a gear box 4, a positioner fixing plate 5, an adapter 6, a horizontal transmission shaft 7 and a vertical transmission shaft 8; the side part of the driving mechanism 1 is connected with the gear box 4 through the horizontal positioning rod 2; the lower end of the vertical positioning rod 3 is connected with the gear box 4, the upper end of the vertical positioning rod 3 is connected with the positioner fixing plate 5, and the upper end of the positioner fixing plate 5 is provided with a valve positioner 9; one end of the adapter 6 is connected with a driving shaft of the driving mechanism 1, and the other end of the adapter 6 is connected with the horizontal transmission shaft 7; the horizontal transmission shaft 7 is provided with a first bevel gear 12; the bottom of the vertical transmission shaft 8 is provided with a second bevel gear 13, the first bevel gear 12 is meshed with the second bevel gear 13, and the top of the vertical transmission shaft 8 is connected with the valve positioner 9 through a transition piece.

In one embodiment of the adjustable valve positioner fixing device, the driving mechanism 1 adopts a rotary cylinder, and the adapter 6 is connected with a driving shaft of the rotary cylinder.

It is specific, actuating mechanism 1 can select for use current revolving cylinder according to actual conditions, actuating mechanism 1 can drive the rotation of adapter 6, and adapter 6 can drive horizontal drive shaft 7 rotatory, horizontal drive shaft 7 drives second bevel gear 13 rotatory through first bevel gear 12, second bevel gear 13 drives the operation of vertical drive shaft 8, can adjust valve locator 9 through the 8 cooperation transition pieces of vertical drive shaft, the transition piece between vertical drive shaft 8 and the valve locator 9 can adopt unsmooth complex structure, the transition piece also can adopt the structure of similar adapter 6, the technique that valve locator 9 adjusted itself is current.

In one embodiment of the adjustable valve positioner fixing device, the number of the horizontal positioning rods 2 is four, and the four horizontal positioning rods 2 respectively penetrate four corners of the side part of the gear box 4; the contact position of the horizontal positioning rod 2 and the gear box 4 is fixed by a nut. The number of the vertical positioning rods 3 is four, and the four vertical positioning rods 3 respectively penetrate through four corners of the upper end and the lower end of the gear box 4; the contact position of the vertical positioning rod 3 and the gear box 4 is fixed by a nut; the vertical positioning rod 3 and the horizontal positioning rod 2 are mutually avoided.

Specifically, four horizontal positioning rods 2 are used for respectively positioning four corners of the side part of the gear box 4, and then nuts are used for fixing, so that the stability of the gear box 4 in the horizontal direction is guaranteed. In addition, four corners of the upper end and the lower end of the gear box 4 are respectively positioned by four vertical positioning rods 3 and then fixed by nuts, so that the stability of the gear box 4 in the vertical direction is ensured. And can reach the mounting height purpose that changes the valve locator through the adjustment and change the high position of vertical positioning pole 3 and vertical drive shaft 8 as required to effectively avoid the damage problem that inside intake leads to after the valve locator water logging.

In one embodiment of the fixing device for the adjustable valve positioner, the fixing device further comprises a middle positioning plate 10, and four pairs of vertical positioning rods 3 respectively penetrate through four corners of the middle positioning plate 10.

Specifically, the middle positioning plate 10 is arranged in the middle of the vertical positioning rod 3 and the vertical transmission shaft 8, so that the stability of the vertical positioning rod 3 and the vertical transmission shaft 8 is ensured.

In one embodiment of the adjustable valve positioner fixing device, the vertical transmission shaft 8 penetrates through the middle positioning plate 10, and an oilless bearing assembly 11 is arranged at a contact position of the vertical transmission shaft 8 and the middle positioning plate 10. The top of the vertical transmission shaft 8 passes through the positioner fixing plate 5 and then is connected with a feedback lever of the valve positioner 9.

Specifically, the contact position through vertical drive shaft 8 and middle locating plate 10 is equipped with oilless bearing assembly 11, and oilless bearing assembly 11 includes oilless bearing and supporting bearing spacing ring, and oilless bearing assembly 11 avoids middle locating plate 10 to cause the influence to vertical drive shaft 8's rotation. The feedback lever of the valve positioner 9 can be adjusted as required by the vertical drive shaft 8 in conjunction with a transition piece.

In the actual installation and use process, the valve needs to be confirmed to be in a closed in-place state before installation, the valve positioner 9 is in a closed in-place state, the rotary cylinder is in a closed in-place position, the valve positioner 9 is powered off, an air source of the rotary cylinder is closed, the steering state of the valve positioner is good, and if all the parts are normal, the valve positioner fixing device can be installed on the next step.

During the installation process, the valve positioner 9 is firstly detached (if the existing equipment is improved, the valve positioner is detached, and if the valve positioner leaves the factory, the step is not needed), the adapter 6 on the horizontal transmission shaft 7 is aligned and inserted into the transmission shaft connecting hole of the driving mechanism 1, and the bolt and the nut are installed in the screw hole on the positioner fixing plate 5. After the central feedback shaft of the valve positioner 9 is inserted into and aligned with the transition piece on the vertical transmission shaft 8, the valve positioner 9 is fixed on the positioner fixing plate 5 and fastened. The valve positioner 9 is recovered to be powered on and drive the air cylinder to supply air, and the state of the equipment is debugged to ensure normal use.

To sum up, the utility model is provided with a driving mechanism 1, a horizontal positioning rod 2, a vertical positioning rod 3, a gear box 4, a positioner fixing plate 5, an adapter 6, a horizontal transmission shaft 7 and a vertical transmission shaft 8; the side part of the driving mechanism 1 is connected with a gear box 4 through a horizontal positioning rod 2; the lower end of the vertical positioning rod 3 is connected with a gear box 4, the upper end of the vertical positioning rod 3 is connected with a positioner fixing plate 5, and the upper end of the positioner fixing plate 5 is provided with a valve positioner 9; one end of the adapter 6 is connected with a driving shaft of the driving mechanism 1, and the other end of the adapter 6 is connected with a horizontal transmission shaft 7; the horizontal transmission shaft 7 is provided with a first bevel gear 12; the bottom of the vertical transmission shaft 8 is provided with a second bevel gear 13, the first bevel gear 12 is meshed with the second bevel gear 13, and the top transition piece of the vertical transmission shaft 8 is connected with a feedback shaft of the valve positioner 9. Actuating mechanism 1 can select for use current revolving cylinder according to actual conditions, and actuating mechanism 1 can drive the rotation of adapter 6, and adapter 6 can drive horizontal drive shaft 7 rotatory, and horizontal drive shaft 7 drives second bevel gear 13 rotatory through first bevel gear 12, and second bevel gear 13 drives the operation of vertical drive axle 8, can adjust valve locator 9 through vertical drive axle 8. The four corners of the side part of the gear box 4 are respectively positioned by the four horizontal positioning rods 2, and then the four horizontal positioning rods are fixed by nuts, so that the stability of the gear box 4 in the horizontal direction is ensured. In addition, four corners of the upper end and the lower end of the gear box 4 are respectively positioned by four vertical positioning rods 3 and then fixed by nuts, so that the stability of the gear box 4 in the vertical direction is ensured. And can reach the mounting height purpose that changes the valve positioner through adjustment and change the height position of vertical positioning pole 3 and vertical drive axle 8 as required to effectively avoid the damage problem that inside intake leads to after the valve positioner water logging. An oilless bearing assembly 11 is arranged at the contact position of the vertical transmission shaft 8 and the middle positioning plate 10, so that the influence of the middle positioning plate 10 on the rotation of the vertical transmission shaft 8 is avoided. The feedback lever of the valve positioner 9 can be adjusted as required by the vertical drive shaft 8. The utility model discloses can once only solve the locator and be flooded the problem, ensure the even running of relevant equipment, reduce maintenance work volume and cost of maintenance, this product also can be used to all other valves of taking the locator after suitably changing the size, and change gear drive direction and increase the gear box and can realize from there being the multi-angle transmission, whole fixing device, it is high to have transmission precision, efficient, compact structure, reliable operation, longe-lived, application scope is wide, the practicality is stronger.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. An adjustable valve positioner fixing device is characterized by comprising a driving mechanism (1), a horizontal positioning rod (2), a vertical positioning rod (3), a gear box (4), a positioner fixing plate (5), an adapter (6), a horizontal transmission shaft (7) and a vertical transmission shaft (8); the side part of the driving mechanism (1) is connected with the gear box (4) through the horizontal positioning rod (2); the lower end of the vertical positioning rod (3) is connected with the gear box (4), the upper end of the vertical positioning rod (3) is connected with the positioner fixing plate (5), and the upper end of the positioner fixing plate (5) is provided with a valve positioner (9); one end of the adapter (6) is connected with a driving shaft of the driving mechanism (1), and the other end of the adapter (6) is connected with the horizontal transmission shaft (7); the horizontal transmission shaft (7) is provided with a first bevel gear (12); the bottom of the vertical transmission shaft (8) is provided with a second bevel gear (13), the first bevel gear (12) is meshed with the second bevel gear (13), and the top of the vertical transmission shaft (8) is connected with the valve positioner (9) through a transition piece.

2. The adjustable valve positioner fixing device according to claim 1, wherein the driving mechanism (1) adopts a rotary cylinder, and the adapter (6) is connected with a driving shaft of the rotary cylinder.

3. The adjustable valve positioner fixing device according to claim 1, wherein the number of the horizontal positioning rods (2) is four, and the four horizontal positioning rods (2) respectively penetrate through four corners of the side part of the gear box (4);

the contact position of the horizontal positioning rod (2) and the gear box (4) is fixed by a nut.

4. The adjustable valve positioner fixing device according to claim 3, wherein the number of the vertical positioning rods (3) is four, and the four vertical positioning rods (3) respectively penetrate through four corners of the upper end and the lower end of the gear box (4);

the contact position of the vertical positioning rod (3) and the gear box (4) is fixed by a nut;

the vertical positioning rod (3) and the horizontal positioning rod (2) are mutually avoided.

5. The adjustable valve positioner fixing device according to claim 4, further comprising a middle positioning plate (10), wherein four pairs of the vertical positioning rods (3) respectively penetrate four corners of the middle positioning plate (10).

6. The adjustable valve positioner fixing device according to claim 5, wherein the vertical transmission shaft (8) passes through the middle positioning plate (10), and an oil-free bearing assembly (11) is arranged at the contact position of the vertical transmission shaft (8) and the middle positioning plate (10).

7. The adjustable valve positioner fixing device according to claim 5, wherein the top of the vertical transmission shaft (8) passes through the positioner fixing plate (5) and then is connected with a feedback lever of the valve positioner (9).