A detection tool and detection method for the moving distance of a ball in a valve

Abstract

The present invention discloses a detection tool and detection method for the moving distance of a ball in a valve, the detection tool comprises a base, a first support seat for fixing the valve, a first force mechanism and a second force mechanism respectively located on both sides of the first support seat, a first pressure sensor and a first push rod mechanism connected to the first force mechanism in sequence, a second pressure sensor and a second push rod mechanism connected to the second force mechanism in sequence, and a suspended second support seat, a top sleeve for pushing the ball in the valve to move in the direction of the first force mechanism is fixedly connected to the second support seat, and a displacement sensor is fixedly connected to the side of the top sleeve away from the first support seat. The detection tool of the present invention can accurately detect the moving distance of the ball in the valve, and is easy to operate.

Description

Technical Field

[0001] The invention relates to a valve detection tool and a detection method, and in particular to a valve detection tool and a detection method for a moving distance of a ball in a valve. Background Art

[0002] like Figure 1~Figure 3 As shown, the valve includes a housing, a ball located in the housing, a ball seat is provided on one side of the ball in the housing, and a valve ball push rod is provided on the other side of the ball in the housing. After the valve is installed, the moving distance of the ball in the valve needs to be tested to ensure that the ball in the valve is installed correctly. Summary of the invention

[0003] The present invention provides a tool for detecting the moving distance of a ball in a valve, which is easy to operate and accurate in detection. The specific technical scheme adopted is as follows:

[0004] A tool for detecting the moving distance of a ball in a valve, comprising a base, a first support seat for fixing the valve, a first force mechanism and a second force mechanism respectively located on both sides of the first support seat, a first pressure sensor and a first push rod mechanism connected to the first force mechanism in sequence, the first push rod mechanism pushing the ball in the valve to move in the direction of the second force mechanism under the action of the first force mechanism, a second pressure sensor and a second push rod mechanism connected to the second force mechanism in sequence, and a suspended second support seat, a top sleeve for pushing the ball in the valve to move in the direction of the first force mechanism is fixedly connected to the second support seat, and a displacement sensor is fixedly connected to the side of the top sleeve away from the first support seat; the second support seat moves in the direction of the first force mechanism through the second pressure sensor and the second push rod mechanism under the pushing action of the second force mechanism, and at the same time, the second support seat drives the top sleeve to move toward the first force mechanism, the displacement sensor is used to detect the displacement of the ball in the valve, the displacement sensor and the second push rod mechanism are supported by a third support seat, the first push rod mechanism is supported by a fourth support seat, and the first support seat, the third support seat and the fourth support seat are fixedly connected to the base.

[0005] In addition to detecting the magnitude of the force applied by the first force-applying mechanism to ensure that the force applied by the first force-applying mechanism is within the acceptable range of the valve, the ball inside the valve and the detection tooling described in the present invention, the first pressure sensor avoids damage to the valve, the ball inside the valve and the detection tooling described in the present invention due to excessive force applied by the first force-applying mechanism. At the same time, it is also necessary to ensure that the force applied by the first force-applying mechanism is sufficient to move the ball inside the valve to the destination position to ensure the effectiveness of the detection. In addition to the detection function, the first pressure sensor mainly plays the role of transmitting force, transmitting the force applied by the first force-applying mechanism to the first push rod mechanism.

[0006] In addition to detecting the magnitude of the force applied by the second force-applying mechanism to ensure that the force applied by the second force-applying mechanism is within the acceptable range of the valve, the ball inside the valve and the detection tooling described in the present invention, the second pressure sensor avoids damage to the valve, the ball inside the valve and the detection tooling described in the present invention due to excessive force applied by the second force-applying mechanism. At the same time, it is also necessary to ensure that the force applied by the second force-applying mechanism is sufficient to move the ball inside the valve to the destination position to ensure the effectiveness of the detection. In addition to the detection function, the second pressure sensor mainly plays the role of transmitting force, transmitting the force applied by the second force-applying mechanism to the second push rod mechanism.

[0007] One end of the top sleeve is fixedly connected to the displacement sensor, and the other end of the top sleeve is convex so as to act on the valve ball push rod, so that the valve ball push rod acts on the ball in the valve to move the ball in the valve.

[0008] The first support seat is provided with a mounting surface for mounting in cooperation with the valve. In the present invention, the valve is mounted by a cone surface pressing method.

[0009] Preferably, a connecting shaft acted upon by the second push rod mechanism is fixedly provided on the second support seat, and the second support seat moves toward the direction of the first force applying mechanism via the second pressure sensor, the second push rod mechanism and the connecting shaft under the pushing action of the push-pull clamp 2.

[0010] Preferably, a guide rod is provided between the first support seat, the second support seat, the third support seat and the fourth support seat, and a linear bearing is provided between the guide rod and the second support seat. Further preferably, a spring is provided between the guide rod and the linear bearings on the third support seat and the second support seat.

[0011] Because the cross-section of the valve ball push rod is relatively small, the use of a guide rod can ensure that the pushing action of the push-pull clamp 2 is achieved, and the second support seat can drive the push sleeve to act on the valve ball push rod, so that the valve ball push rod can push the ball inside the valve to move.

[0012] The guide rod is provided with a spring between the linear bearings on the third support seat and the second support seat to ensure that the valve ball push rod slowly pushes the ball in the valve, thereby protecting the valve and the ball in the valve.

[0013] Preferably, the force direction of the first force-applying mechanism on the first pressure sensor, the force direction of the first pressure sensor on the first push rod mechanism, and the force direction of the first push rod mechanism on the ball in the valve are all consistent with the movement direction of the ball in the valve under the action of the first push rod mechanism; further preferably, the force direction of the push-pull type clamp on the second pressure sensor, the force direction of the second pressure sensor on the second push rod mechanism, and the force direction of the second push rod mechanism on the connecting shaft are all consistent with the force direction of the connecting shaft on the second support seat; the force direction of the top sleeve on the valve is consistent with the movement direction of the ball in the valve under the action of the top sleeve; further preferably, the movement direction of the top sleeve driven by the second support seat is consistent with the movement direction of the ball in the valve under the action of the top sleeve.

[0014] Preferably, the first force-applying mechanism includes a push-pull clamp, the push-pull clamp 2 includes a push-pull clamp, the push-pull clamp is conveniently fixed and installed with the base of the present invention through a flange base, and the push-pull clamp is conveniently installed and connected with the first pressure sensor or the second pressure sensor.

[0015] Preferably, the first push rod mechanism includes a sleeve, connecting rod one and connecting rod two are connected in the sleeve, one end of the connecting rod two extending out of the sleeve is used to connect to the first pressure sensor, one end of the connecting rod one extending out of the sleeve is connected to a ejector pin, the ejector pin is used to push the ball in the valve, and a spring is provided between the connecting rod one and the connecting rod two; the second push rod mechanism includes a sleeve, connecting rod three and connecting rod four are connected in the sleeve, one end of the connecting rod three extending out of the sleeve is used to connect to the second pressure sensor, one end of the connecting rod four extending out of the sleeve is connected to a ejector pin, the ejector pin is used to directly or indirectly push the second support seat, and a spring is provided between the connecting rod three and the connecting rod four.

[0016] The first push rod mechanism is provided with a spring to ensure that when the ejector pin pushes the ball in the valve, the valve and the ball in the valve will not be damaged; the second push rod mechanism is provided with a spring to ensure that when the ejector sleeve acts on the valve ball ejector rod, and when the valve ball ejector rod acts on the ball in the valve, the valve and the ball in the valve will not be damaged.

[0017] The present invention also discloses a method for detecting the moving distance of a ball in a valve, using the tooling for detecting the moving distance of the ball in a valve described in the present invention, so that the first force-applying mechanism applies force to push the ball in the valve to the first limit position of the valve, and the displacement sensor is used to measure the position L1 of the valve ball push rod, wherein the first limit is the limit position that the ball can reach away from the first force-applying mechanism; the first force-applying mechanism is not applied with force, and the push-pull clamp No. 2 applies force to push the ball in the valve to the second limit position of the valve, and the displacement sensor is used to measure the position L2 of the valve ball push rod, wherein the second limit is the limit position that the ball can reach away from the push-pull clamp No. 2; the moving distance of the ball in the valve is: L2-L1.

[0018] Beneficial effects of the present invention:

[0019] 1) The detection tooling of the present invention can accurately detect the moving distance of the ball in the valve without causing damage to the valve and the ball in the valve;

[0020] 2) The detection tooling described in the present invention is easy to operate and has low requirements on operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the valve structure;

[0022] Figure 2 yes Figure 1 A structural diagram of a BB-direction cross-sectional view;

[0023] Figure 3 It is a structural schematic diagram of a three-dimensional diagram of a valve;

[0024] Figure 4 It is a structural schematic diagram of the front view of the tooling for detecting the moving distance of the ball in the valve according to the present invention;

[0025] Figure 5 yes Figure 4 A schematic diagram of a top view of the structure;

[0026] Figure 6 yes Figure 5 Structural schematic diagram of the AA section view;

[0027] Figure 7 It is a structural schematic diagram of a three-dimensional diagram of a tooling for detecting the moving distance of a ball in a valve according to the present invention.

[0028] In the figure: 1. sleeve two, 2. connecting rod four, 3. ejector pin two, 4. connecting rod three, 5. third support seat, 6. fourth support seat, 7. guide rod one, 8. guide rod two, 9. first support seat, 10. base, 11. connecting rod two, 12. ejector pin one, 13. connecting rod one, 14. sleeve one, 15. ejector sleeve, 16. connecting shaft, 17. second support seat, 18. full threaded rod, 19. spring two, 20. second push rod mechanism, 21. guide rod spring, 22. spring one, 23. push-pull clamp one, 24. second pressure sensor, 25. first pressure sensor, 26. first push rod mechanism, 27. displacement sensor, 28. push-pull clamp two, 29. valve, 2901, ball, 2902, ball seat, 2903, shell, 2904, valve ball ejector. DETAILED DESCRIPTION

[0029] like Figure 1~Figure 2 As shown, the valve 29 includes a shell 2903 and a ball 2901 located in the shell. A ball seat 2902 is provided on one side of the ball 2901 in the shell, and a valve ball top rod 2904 is provided on the other side of the ball in the shell.

[0030] Example 1

[0031] Combination Figure 3~Figure 7 The tooling for detecting the moving distance of a ball in a valve described in the present invention is further described. A tooling for detecting the moving distance of a ball in a valve comprises a base 10, a first support seat 9 for fixing a valve 29, a push-pull clamp 1 23 and a push-pull clamp 28 respectively located on both sides of the first support seat 9, a first pressure sensor 25 and a first push rod mechanism 26 connected to the push-pull clamp 1 23 in sequence, the first push rod mechanism 26 pushes the ball in the valve to move toward the push-pull clamp 28 under the action of the push-pull clamp 1 23, a second pressure sensor 24 and a second push rod mechanism 20 connected to the push-pull clamp 28 in sequence, and a suspended second support seat 17, the second support seat 17 is fixedly connected with a pressure sensor for pushing the ball in the valve to move toward the push-pull clamp 1 The top sleeve 15 moves in the direction of the first support seat 9, and the top sleeve 15 is fixedly connected with a displacement sensor 27 on the side away from the first support seat 9; the second support seat 17 moves toward the push-pull clamp 1 23 through the second pressure sensor 24 and the second push rod mechanism 20 under the pushing action of the push-pull clamp 28, and at the same time, the second support seat 17 drives the top sleeve 15 to move toward the push-pull clamp 1 23, and the displacement sensor 27 is used to detect the displacement of the ball in the valve, the displacement sensor 27 and the second push rod mechanism 20 are supported by the third support seat 5, and the first push rod mechanism 26 is supported by the fourth support seat 6, and the first support seat 9, the third support seat 5 and the fourth support seat 6 are fixedly connected to the base 10. The valve 29 is Figure 4 The installation direction on the first support seat 9 is as follows Figure 1 and Figure 2 As shown, one end of the ball seat 2902 is close to the push-pull clamp 1 23, and the valve ball top rod 2904 is close to the push-pull clamp 28.

[0032] In addition to detecting the magnitude of the force applied by the push-pull clamp 23 to ensure that the force applied by the push-pull clamp 23 is within the acceptable range of the valve, the ball inside the valve and the detection tooling described in the present invention, the valve, the ball inside the valve and the detection tooling described in the present invention are prevented from being damaged due to excessive force applied by the push-pull clamp 23, and at the same time, the force applied by the push-pull clamp 23 is sufficient to move the ball inside the valve to the destination position to ensure the effectiveness of the detection; in addition to playing the role of detection, the first pressure sensor 25 mainly plays the role of transmitting force, transmitting the force applied by the push-pull clamp 23 to the first push rod mechanism 26.

[0033] In addition to detecting the magnitude of the force applied by the push-pull clamp 28 to ensure that the force applied by the push-pull clamp 28 is within the acceptable range of the valve, the ball inside the valve and the detection tooling described in the present invention, the valve, the ball inside the valve and the detection tooling described in the present invention are prevented from being damaged due to excessive force applied by the push-pull clamp 28. At the same time, it is also necessary to ensure that the force applied by the push-pull clamp 28 is sufficient to move the ball inside the valve to the destination position to ensure the effectiveness of the detection. In addition to the detection function, the second pressure sensor 24 mainly plays the role of transmitting force, transmitting the force applied by the push-pull clamp 28 to the second push rod mechanism 20.

[0034] One end of the top sleeve 15 is fixedly connected to the displacement sensor 27, and the other end of the top sleeve 15 is convex so as to act on the valve ball top rod 2904, so that the valve ball top rod 2904 acts on the ball 2901 inside the valve to move the ball 2901 inside the valve.

[0035] The first support seat 9 is provided with a mounting surface for mounting in cooperation with the valve. In the present invention, the valve is mounted by a conical surface pressing method.

[0036] like Figure 6 and Figure 7 As shown, a connecting shaft 16 acted upon by the second push rod mechanism 20 is fixedly disposed on the second support seat 17. Under the pushing action of the push-pull clamp 28, the second support seat 17 moves toward the push-pull clamp 1 23 via the second pressure sensor 24, the second push rod mechanism 20 and the connecting shaft 16.

[0037] A guide rod is provided between the first support seat 9, the second support seat 17, the third support seat 5 and the fourth support seat 6, and the guide rod includes a symmetrically arranged guide rod 1 7 and a guide rod 2 8, and a linear bearing is provided between the guide rod and the second support seat 17. The guide rod is provided with a guide rod spring 21 between the linear bearings on the third support seat 5 and the second support seat 17.

[0038] The installation requirements of the tooling for detecting the moving distance of the ball in the valve described in the present invention are as follows: the force direction of the push-pull clamp 23 on the first pressure sensor 25, the force direction of the first pressure sensor 25 on the first push rod mechanism 26, and the force direction of the first push rod mechanism 26 on the ball 2901 in the valve are all consistent with the moving direction of the ball 2901 in the valve under the action of the first push rod mechanism 26; the force direction of the push-pull clamp 28 on the second pressure sensor 24, the force direction of the second pressure sensor 24 on the second push rod mechanism 20, and the force direction of the second push rod mechanism 20 on the connecting shaft 16 are all consistent with the force direction of the connecting shaft 16 on the second support seat 17; the force direction of the top sleeve 15 on the valve ball push rod 2904 is consistent with the moving direction of the ball in the valve under the action of the valve ball push rod 2904; the moving direction of the top sleeve 15 driven by the second support seat 17 is consistent with the moving direction of the ball in the valve under the action of the top sleeve 15.

[0039] In the present invention, the push-pull clamp 1 23 and the push-pull clamp 2 28 are fixedly installed on the base 10 through a flange base, which is easy to install. The push-pull clamp 2 28 is installed on the second pressure sensor 24 through a full-threaded rod 18, which is easy to install; the push-pull clamp 1 23 is installed on the first pressure sensor 25 through a full-threaded rod, which is easy to install.

[0040] See also Figure 6 The first push rod mechanism 26 includes a sleeve 14, a connecting rod 13 and a connecting rod 2 11 are connected in the sleeve 14, the connecting rod 2 11 extends out of the sleeve 14 at one end for connecting to the first pressure sensor 25, the connecting rod 13 extends out of the sleeve 14 at one end and is connected to a ejector pin 12, the ejector pin 12 is used to push the ball in the valve, and a spring 22 is provided between the connecting rod 13 and the connecting rod 2 11; the second push rod mechanism 20 includes a sleeve 2 1, a connecting rod 3 4 and a connecting rod 4 2 are connected in the sleeve 2 1, the connecting rod 3 4 extends out of the sleeve 2 1 at one end for connecting to the second pressure sensor 24, the connecting rod 4 extends out of the sleeve at one end and is connected to an ejector pin 2 3, the ejector pin 2 3 is used to push the connecting shaft 16, and a spring 2 19 is provided between the connecting rod 3 4 and the connecting rod 4 2.

[0041] The first push rod mechanism 26 is provided with a spring 1 to ensure that when the ejector pin 1 pushes the ball in the valve, the valve and the ball in the valve are not damaged; the second push rod mechanism 20 is provided with a spring 2 to ensure that when the ejector sleeve 15 acts on the valve ball ejector rod, and when the valve ball ejector rod acts on the ball in the valve, the valve and the ball in the valve are not damaged.

[0042] Example 2

[0043] The tooling for detecting the moving distance of the ball in the valve described in the present invention is adopted. Initially, the push-pull clamp 1 23 and the push-pull clamp 2 28 do not apply force. When the push-pull clamp 1 23 applies force, the ball in the valve is pushed to the first limit position of the valve, and the position L1 of the valve ball push rod is measured by the displacement sensor 27. The first limit is the limit position that the ball can reach away from the push-pull clamp 1 23. The push-pull clamp 1 23 does not apply force, and the push-pull clamp 2 28 applies force to push the ball in the valve to the second limit position of the valve, and the position L2 of the valve ball push rod is measured by the displacement sensor 27. The second limit is the limit position that the ball can reach away from the push-pull clamp 28. The moving distance of the ball in the valve is: L2-L1.

Claims

1. A tool for detecting the moving distance of a ball in a valve, characterized by: The invention comprises a base, a first support seat for fixing the valve, a first force mechanism and a second force mechanism respectively located on both sides of the first support seat, a first pressure sensor and a first push rod mechanism connected to the first force mechanism in sequence, wherein the first push rod mechanism pushes a ball in the valve to move in the direction of the second force mechanism under the action of the first force mechanism, a second pressure sensor and a second push rod mechanism connected to the second force mechanism in sequence, and a suspended second support seat, wherein a top sleeve for pushing the ball in the valve to move in the direction of the first force mechanism is fixedly connected to the second support seat, and a displacement sensor is fixedly connected to the top sleeve on the side away from the first support seat; the second support seat is pushed by the second force mechanism through the second pressure sensor , the second push rod mechanism moves toward the direction of the first force-applying mechanism, and at the same time, the second support seat drives the top sleeve to move toward the first force-applying mechanism, the displacement sensor is used to detect the displacement of the ball in the valve, the displacement sensor and the second push rod mechanism are supported by the third support seat, the first push rod mechanism is supported by the fourth support seat, the first support seat, the third support seat and the fourth support seat are fixedly connected to the base; the first force-applying mechanism includes a push-pull clamp 1, and the second force-applying mechanism includes a push-pull clamp 2; a ball seat is provided on one side of the ball in the valve, and a valve ball push rod is provided on the other side of the ball in the valve, one end of the ball seat is close to the push-pull clamp 1, and the valve ball push rod is close to the push-pull clamp 2.

2. The tooling for detecting the moving distance of the ball in the valve according to claim 1 is characterized in that: A connecting shaft acted upon by the second push rod mechanism is fixedly disposed on the second support seat. Under the pushing action of the second force applying mechanism, the second support seat moves toward the direction of the first force applying mechanism via the second pressure sensor, the second push rod mechanism and the connecting shaft.

3. The tooling for detecting the moving distance of the ball in the valve according to claim 2 is characterized in that: A guide rod is provided between the first support seat, the second support seat, the third support seat and the fourth support seat, and a linear bearing is provided between the guide rod and the second support seat.

4. The tooling for detecting the moving distance of the ball in the valve according to claim 3 is characterized in that: The force direction of the first force-applying mechanism on the first pressure sensor, the force direction of the first pressure sensor on the first push rod mechanism, and the action direction of the first push rod mechanism on the ball in the valve are all consistent with the movement direction of the ball in the valve under the action of the first push rod mechanism.

5. The tooling for detecting the moving distance of the ball in the valve according to claim 4 is characterized in that: The direction of the force applied by the second force-applying mechanism on the second pressure sensor, the direction of the force applied by the second pressure sensor on the second push rod mechanism, and the direction of the force applied by the second push rod mechanism on the connecting shaft are all consistent with the direction of the force applied by the connecting shaft on the second support seat; the direction of the force applied by the top sleeve on the valve is consistent with the direction of movement of the ball in the valve under the action of the top sleeve.

6. The tooling for detecting the moving distance of the ball in the valve according to claim 5 is characterized in that: The moving direction of the top sleeve driven by the second support seat is consistent with the moving direction of the ball in the valve under the action of the top sleeve.

7. The tooling for detecting the moving distance of the ball in the valve according to claim 3 is characterized in that: The guide rod is provided with a spring between the linear bearings on the third support seat and the second support seat.

8. The tooling for detecting the moving distance of a ball in a valve according to claim 1 is characterized in that: The first push rod mechanism includes a sleeve, and connecting rod 1 and connecting rod 2 are connected in the sleeve. The connecting rod 2 extends out of the sleeve at one end for connecting to the first pressure sensor, and the connecting rod 1 extends out of the sleeve at one end and is connected to a ejector pin, and the ejector pin is used to push the ball in the valve, and a spring is provided between the connecting rod 1 and the connecting rod 2; the second push rod mechanism includes a sleeve, and connecting rod 3 and connecting rod 4 are connected in the sleeve. The connecting rod 3 extends out of the sleeve at one end and is connected to the second pressure sensor, and the connecting rod 4 extends out of the sleeve at one end and is connected to a ejector pin, and the ejector pin is used to directly or indirectly push the second support seat, and a spring is provided between the connecting rod 3 and the connecting rod 4.

9. A method for detecting the moving distance of a ball in a valve, characterized in that: A tool for detecting the moving distance of a ball in a valve as described in any one of claims 1 to 8 is used, and a first force-applying mechanism is used to apply a force to push the ball in the valve to the first limit position of the valve, and a position L1 of a valve ball push rod is measured by the displacement sensor, wherein the first limit is the limit position that the ball can reach away from the first force-applying mechanism; the first force-applying mechanism is not used to apply a force, and the second force-applying mechanism is used to apply a force to push the ball in the valve to the second limit position of the valve, and a position L2 of a valve ball push rod is measured by the displacement sensor, wherein the second limit is the limit position that the ball can reach away from the second force-applying mechanism; the moving distance of the ball in the valve is: L2-L1.

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