CN219224135U

CN219224135U - Valve torsion resistance testing machine

Info

Publication number: CN219224135U
Application number: CN202320760026.0U
Authority: CN
Inventors: 马鹏; 林英东
Original assignee: Jinan Bijian Testing Technology Co ltd
Current assignee: Jinan Bijian Testing Technology Co ltd
Priority date: 2023-04-04
Filing date: 2023-04-04
Publication date: 2023-06-20
Anticipated expiration: 2033-04-04

Abstract

The utility model relates to the technical field of valve detection, in particular to a valve torsion resistance testing machine which can automatically detect the torsion force of a handle on a valve when the handle rotates, is suitable for valves with different specifications, and has the advantages of low labor intensity, convenient use and high practicability; the device comprises a bottom plate and a bracket, wherein the bracket is fixedly arranged at the upper end of the bottom plate; still include stirring rod, elevating gear, rotary device and fixture, rotary device installs on the bottom plate through elevating gear, and elevating gear has the lift function, and stirring rod installs on rotary device, and rotary device is used for rotatory stirring rod, is provided with torque sensor on the rotary device, and torque sensor is used for detecting the torque force of rotary device output, is provided with fixture on the support, and fixture has the centre gripping function.

Description

Valve torsion resistance testing machine

Technical Field

The utility model relates to the technical field of valve detection, in particular to a valve torsion resistance testing machine.

Background

The valve is a device for controlling the flow of a medium, and has wide application in various fields such as chemical industry, pharmacy, food processing and the like. The valve is generally provided with a handle, and a worker controls the opening and closing of the valve by rotating the handle. In order to ensure the reliability of the valve in the use process, the torque force to be overcome when the handle rotates must be controlled in a certain interval, when the torque force is too large, people cannot easily rotate the handle, the use is inconvenient, when the torque force is too small, the handle on the valve easily rotates by itself due to self weight or external vibration, and the valve is unreliable to use, so that the valve needs to be subjected to torsion test before delivery, and the torque force to be overcome when the handle on the valve rotates is detected.

Among the prior art, a valve torque testing machine of patent application number "202022124096.6", it mainly includes tensiometer and anchor clamps, and it is fixed with the valve centre gripping through anchor clamps, makes the one end of tensiometer be connected with the handle on the valve, later the workman pulls the tensiometer, takes place to rotate to the handle on the valve, and the torque force when the handle rotates on the valve can be speculated through the numerical value on the observation tensiometer to the workman. The utility model discloses in the use, it when detecting, needs the workman to stimulate the tensiometer manually to detect the moment of torsion power on the valve, after long-time work, the staff is easy arm ache, intensity of labour is big, uses inconveniently.

Disclosure of Invention

In order to solve the technical problems, the utility model provides the valve torsion resistance testing machine which can automatically detect the torsion force of the handle on the valve when the handle rotates, is applicable to valves with different specifications, and has the advantages of low labor intensity, convenient use and high practicability.

The valve torsion resistance testing machine comprises a bottom plate and a bracket, wherein the bracket is fixedly arranged at the upper end of the bottom plate; the lifting device is arranged on the bottom plate, the lifting device has a lifting function, the poking rod is arranged on the rotating device, the rotating device is used for rotating the poking rod, a torque sensor is arranged on the rotating device and used for detecting torque force output by the rotating device, the clamping mechanism is arranged on the support, and the clamping mechanism has a clamping and fixing function; when the torque force of the handle on the valve is detected, the valve is clamped and fixed through the clamping mechanism on the support, the handle on the valve is contacted with the poking rod, then the rotating device is opened, the rotating device drives the poking rod to rotate through a certain torque force, the poking rod pushes the handle, then the torque force output by the rotating device is gradually increased, when the handle just rotates, the value displayed on the torque sensor on the rotating device is observed, and the torque force when the handle on the valve rotates can be estimated.

Preferably, the lifting device comprises an oil cylinder, two groups of struts, two groups of sliding plates and a supporting plate, wherein the oil cylinder is fixedly arranged on the bottom plate, a push rod is arranged on the oil cylinder, the lower end of the push rod is connected with the output end of the oil cylinder, the two groups of struts are fixedly arranged on the bottom plate, the lower parts of the two groups of sliding plates are vertically and slidably arranged on the struts, the supporting plate is fixedly arranged at the upper ends of the push rod and the two groups of sliding plates, and the rotating device is arranged on the supporting plate; when the valve is clamped and fixed by the clamping mechanism, the oil cylinder is opened, the oil cylinder drives the supporting plate to drive the rotating device to adjust the height by the push rod, and the rotating device drives the toggle rod to adjust the height until the toggle rod is contacted with a handle on the valve; the height of the toggle rod can be adjusted according to the height of the handles on the valves of different specifications, so that the toggle rod is suitable for the valves of different specifications, and has the advantages of low use limitation, convenient use and high practicability.

Preferably, the rotating device comprises a torque motor, a driving shaft and a connecting plate, wherein the torque motor is fixedly arranged on the supporting plate, a torque sensor is arranged on the torque motor and is used for detecting torque force output by the torque motor, the left end of the driving shaft is connected with the output end of the torque motor, the connecting plate is fixedly arranged on the driving shaft, and the toggle rod is fixedly arranged on the connecting plate; when the torque force of the handle on the valve is detected, the toggle rod is firstly contacted with the handle, then the torque motor is turned on, the torque motor outputs a certain torque force, the torque force is sequentially transmitted to the handle through the torque motor, the driving shaft, the connecting plate and the toggle rod, then the torque force output by the torque motor is gradually increased until the handle just rotates, the torque force when the handle rotates can be calculated according to the torque force output by the torque motor, the torque force when the handle rotates can be automatically detected, and the valve is convenient to use.

Preferably, the clamping mechanism comprises a support plate, a screw rod and two groups of clamping plates, wherein the support plate is fixedly arranged on the support, a sliding groove is formed in the support plate, the screw rod is rotatably arranged on the support plate, the front part and the rear part of the screw rod are respectively provided with external threads with opposite rotation directions, the two groups of clamping plates are respectively screwed with the front part and the rear part of the screw rod, and the two groups of clamping plates are respectively arranged in the sliding groove of the support plate in a front-back sliding manner; when the valve is fixed, the valve is firstly placed between two groups of clamping plates at the upper end of the support plate, a handle on the valve is positioned at the left part of the valve, then the screw rod is rotated, the two groups of clamping plates are mutually close to each other by the rotating screw rod, and the valve clamp is fastened and fixed on the support plate by the two groups of clamping plates; because the distance between two sets of splint can be adjusted, so it can the valve of different width of centre gripping, convenient to use, the limitation is low.

Preferably, the device also comprises a hand wheel, wherein the hand wheel is fixedly arranged on the screw rod; people can rotate the screw rod by grasping the hand wheel, and the screw rod is convenient to rotate.

Preferably, the valve further comprises a feeding mechanism, wherein the feeding mechanism is fixedly arranged on the bottom plate and is used for adjusting the height of the valve; when the torque force of the valve is detected, the valve is firstly placed on a feeding mechanism, then the valve is lifted up through the feeding mechanism until the valve is lifted up to be consistent with the height of the support plate, and then the valve is transferred to the support plate to be clamped; and the valve is convenient to transfer.

Preferably, the outer surface of the poking rod is provided with a wear-resistant coating; through the arrangement, the abrasion of the poking rod is slowed down, and the service life of the poking rod is prolonged.

Compared with the prior art, the utility model has the beneficial effects that: the torque force of the handle on the valve during rotation can be automatically detected, and the valve is suitable for valves of different specifications, and has the advantages of low labor intensity, convenient use and high practicability.

Drawings

FIG. 1 is a schematic illustration of an axially measured structure of the present utility model;

fig. 2 is a schematic structural view of the base plate, the support plate, etc.;

FIG. 3 is a schematic view of the structure of FIG. 2, partially enlarged at A;

FIG. 4 is a schematic view of the structure of the lifting device;

FIG. 5 is a schematic view of the structure of the clamping mechanism;

FIG. 6 is a schematic structural view of a rotary device;

FIG. 7 is a schematic diagram of the front view of the present utility model;

the reference numerals in the drawings: 1. a bottom plate; 2. a bracket; 3. a valve; 4. a handle; 5. a toggle rod; 6. an oil cylinder; 7. a support post; 8. a sliding plate; 9. a support plate; 10. a torque motor; 11. a drive shaft; 12. a connecting plate; 13. a support plate; 14. a screw rod; 15. a clamping plate; 16. a hand wheel; 17. and a feeding mechanism.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. This utility model may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Example 1

As shown in fig. 1 to 7, the valve torsion resistance testing machine of the present utility model comprises a base plate 1, a bracket 2, a toggle rod 5, a torque motor 10, a driving shaft 11, a connecting plate 12, a lifting device and a clamping mechanism, wherein the bracket 2 is fixedly installed at the upper end of the base plate 1, the torque motor 10 is fixedly installed on the lifting device, a torque sensor is arranged on the torque motor 10 and is used for detecting the torque force output by the torque motor 10, the left end of the driving shaft 11 is connected with the output end of the torque motor 10, the connecting plate 12 is fixedly installed on the driving shaft 11, the toggle rod 5 is fixedly installed on the connecting plate 12, the lifting device is installed on the base plate 1, the lifting device has a lifting function, the bracket 2 is provided with the clamping mechanism, and the clamping mechanism has a clamping fixing function.

When the novel valve is used, the valve 3 is clamped and fixed through the clamping mechanism on the bracket 2, the handle 4 on the valve 3 is in contact with the toggle rod 5, then the torque motor 10 is opened, the torque motor 10 outputs a certain torque force, the torque force is sequentially transmitted to the handle 4 through the torque motor 10, the driving shaft 11, the connecting plate 12 and the toggle rod 5, then the torque force output by the torque motor 10 is gradually increased until the handle 4 just rotates, at the moment, the torque force when the handle 4 rotates can be calculated according to the torque force output by the torque motor 10, and the torque force when the handle 4 rotates can be automatically detected, so that the novel valve is convenient to use.

As shown in fig. 4, the lifting device comprises an oil cylinder 6, two groups of support posts 7, two groups of sliding plates 8 and a support plate 9, wherein the oil cylinder 6 is fixedly arranged on the bottom plate 1, a push rod is arranged on the oil cylinder 6, the lower end of the push rod is connected with the output end of the oil cylinder 6, the two groups of support posts 7 are fixedly arranged on the bottom plate 1, the lower parts of the two groups of sliding plates 8 are vertically and slidably arranged on the support posts 7, the support plate 9 is fixedly arranged on the upper ends of the push rod and the two groups of sliding plates 8, and the rotating device is arranged on the support plate 9; after the valve 3 is clamped and fixed by the clamping mechanism, the oil cylinder 6 is opened, the oil cylinder 6 drives the supporting plate 9 to drive the rotating device to adjust the height by the push rod, and the rotating device drives the toggle rod 5 to adjust the height until the toggle rod 5 contacts with the handle 4 on the valve 3; because the height of the poking rod 5 can be adjusted, the height of the poking rod 5 can be adjusted according to the difference of the heights of the handles 4 on the valves 3 with different specifications, and the device is suitable for the valves 3 with different specifications, and has the advantages of low use limitation, convenient use and high practicability.

As shown in fig. 5, the clamping mechanism comprises a support plate 13, a screw rod 14 and two groups of clamping plates 15, wherein the support plate 13 is fixedly arranged on the support frame 2, a chute is arranged on the support plate 13, the screw rod 14 is rotatably arranged on the support plate 13, the front part and the rear part of the screw rod 14 are respectively provided with external threads with opposite rotation directions, the two groups of clamping plates 15 are respectively screwed with the front part and the rear part of the screw rod 14, a hand wheel 16 is fixedly arranged on the screw rod 14, and the two groups of clamping plates 15 are respectively and slidably arranged in the chute of the support plate 13 front and rear; when the valve 3 is fixed, firstly, the valve 3 is placed between two groups of clamping plates 15 at the upper end of the support plate 13, the handle 4 on the valve 3 is positioned at the left part of the valve 3, then the screw rod 14 is rotated, the two groups of clamping plates 15 are mutually close to each other by the rotating screw rod 14, and the valve 3 is clamped and fixed on the support plate 13 by the two groups of clamping plates 15; the distance between the two groups of clamping plates 15 can be adjusted, so that the clamping plates can clamp valves 3 with different widths, and the clamping plates are convenient to use and low in limitation.

The outer surface of the poke rod 5 is provided with a wear-resistant coating.

Example 2

On the basis of the embodiment 1, a feeding mechanism 17 is additionally arranged, and the feeding mechanism 17 is arranged on the bottom plate 1. When the torque force of the valve 3 is detected, the valve 3 is firstly placed on the feeding mechanism 17, then the valve 3 is lifted up through the feeding mechanism 17 until the valve 3 is lifted up to be consistent with the height of the support plate 13, and then the valve 3 is transferred to the support plate 13 for clamping; the transfer of the valve 3 is facilitated.

What needs to be stated is: when the torque force of the handle 4 on the valve 3 is detected, the distance between the handle 4 and the rotation center is measured in advance when the handle 4 rotates, and the distance between the toggle rod 5 and the axis of the driving shaft 11 is known, so that the length of the force arm can be calculated, and the torque force when the handle 4 rotates can be estimated according to the output torque force of the torque motor 10.

The oil cylinder 6, the torque motor 10, the lead screw 14 and the feeding mechanism 17 of the valve torsion resistance testing machine are all purchased in the market, and a person skilled in the art only needs to install and operate according to the attached use instruction, and the creative labor of the person skilled in the art is not required.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.

Claims

1. The valve torsion resistance testing machine comprises a bottom plate (1) and a bracket (2), wherein the bracket (2) is fixedly arranged at the upper end of the bottom plate (1); the lifting device is characterized by further comprising a poking rod (5), a lifting device, a rotating device and a clamping mechanism, wherein the rotating device is arranged on the bottom plate (1) through the lifting device, the lifting device has a lifting function, the poking rod (5) is arranged on the rotating device, the rotating device is used for rotating the poking rod (5), a torque sensor is arranged on the rotating device and used for detecting torque force output by the rotating device, and the clamping mechanism is arranged on the support (2) and has a clamping and fixing function.

2. The valve torsion resistance testing machine according to claim 1, wherein the lifting device comprises an oil cylinder (6), two groups of support posts (7), two groups of sliding plates (8) and a support plate (9), the oil cylinder (6) is fixedly arranged on the bottom plate (1), a push rod is arranged on the oil cylinder (6), the lower end of the push rod is connected with the output end of the oil cylinder (6), the two groups of support posts (7) are fixedly arranged on the bottom plate (1), the lower parts of the two groups of sliding plates (8) are fixedly arranged on the support posts (7) in a sliding manner, the support plate (9) is fixedly arranged at the upper ends of the push rod and the two groups of sliding plates (8), and the rotating device is arranged on the support plate (9).

3. A valve torsion resistance testing machine according to claim 1, characterized in that the rotating means comprises a torque motor (10), a driving shaft (11) and a connecting plate (12), the torque motor (10) is fixedly mounted on the supporting plate (9), a torque sensor is arranged on the torque motor (10) and is used for detecting torque force output by the torque motor (10), the left end of the driving shaft (11) is connected with the output end of the torque motor (10), the connecting plate (12) is fixedly mounted on the driving shaft (11), and the toggle rod (5) is fixedly mounted on the connecting plate (12).

4. The valve torsion resistance testing machine according to claim 1, wherein the clamping mechanism comprises a support plate (13), a screw rod (14) and two groups of clamping plates (15), the support plate (13) is fixedly arranged on the support frame (2), a sliding groove is formed in the support plate (13), the screw rod (14) is rotatably arranged on the support plate (13), external threads with opposite rotation directions are respectively formed in the front part and the rear part of the screw rod (14), the two groups of clamping plates (15) are respectively screwed with the front part and the rear part of the screw rod (14), and the two groups of clamping plates (15) are respectively slidably arranged in the sliding groove of the support plate (13) front and rear.

5. The valve torsion testing machine of claim 4, further comprising a hand wheel (16), wherein the hand wheel (16) is fixedly mounted to the lead screw (14).

6. A valve torsion resistance testing machine according to claim 1, further comprising a feeding mechanism (17), wherein the feeding mechanism (17) is fixedly mounted on the base plate (1), and the feeding mechanism (17) is used for adjusting the height of the valve (3).

7. A valve torsion testing machine according to claim 1, wherein the outer surface of the tap lever (5) is provided with a wear-resistant coating.