Rotary joint detection device

Abstract

The utility model relates to a rotary joint detection device, and belongs to the technical field of rotary joint detection equipment. Comprising a rack, one end of the rack is provided with a connector A through a mounting plate A, the other end of the rack is provided with a connecting screw rod through a mounting plate B in a threaded mode, one end of the connecting screw rod is provided with an electronic hoist scale through a movable assembly A, and the portion, between the electronic hoist scale and the connector A, of the rack is provided with a worm and gear speed reducer which is provided with a driving motor. A transmission shaft of the driving motor is fixedly connected with a worm of the worm gear reducer, a rotating shaft is inserted into a worm gear center hole of the worm gear reducer, a connector B is installed at one end of the rotating shaft in a threaded mode, and the other end of the rotating shaft is connected with the electronic hoist scale through a movable assembly B. According to the rotary joint detection device, tensile detection, sealing detection and rotation detection are integrated, and the problems that an existing detection means wastes time and labor and is low in force detection efficiency are solved.

Description

Technical Field

[0001] The utility model relates to a rotary joint detection device, belonging to the technical field of rotary joint detection equipment. Background Art

[0002] The rotary joint is a pipe connection device. It can rotate relative to each other and can also be used to transmit various media such as gas, liquid, oil, etc. The rotary joint is a hollow circular sleeve. One end of the rotary joint is provided with an external thread, and the other end of the rotary joint is provided with an internal thread. The rotary joint needs to be subjected to tensile, sealing and relative rotation tests before leaving the factory to ensure the product yield.

[0003] The tensile strength, sealing and relative rotation detection of the existing rotary joints are tested by the staff by passing the rotary joints through the tensile strength detection tool, the sealing detection tool and the relative rotation detection tool respectively. This process is cumbersome to operate, time-consuming and labor-intensive, increases the amount of manual labor, and leads to low detection efficiency. Therefore, it is necessary to improve it. Summary of the invention

[0004] The utility model aims to provide a flipping mechanism for a pump head cylinder of a fracturing truck which can integrate tensile strength, sealing and relative rotation detection into one, so as to solve the problems of time-consuming and low force detection efficiency of existing detection means.

[0005] The technical solution of the utility model is:

[0006] A rotary joint detection device includes a frame, characterized in that: a connector A is installed at one end of the frame through a mounting plate A, a connecting screw is threadedly installed at the other end of the frame through a mounting plate B, an electronic crane scale is installed at one end of the connecting screw through a movable component A, a worm gear reducer is installed on the frame between the electronic crane scale and the connector A, a drive motor is installed on the worm gear reducer, a transmission shaft of the drive motor is fixedly connected to the worm of the worm gear reducer, a rotating shaft is inserted into the center hole of the worm wheel of the worm gear reducer, a connector B is threadedly installed at one end of the rotating shaft, and the other end of the rotating shaft is connected to the electronic crane scale through the movable component B.

[0007] The connector A includes a connecting pipe, which is movably mounted on the mounting plate A. A first external thread is provided on the circumference of the port at one end of the connecting pipe, a flange is provided on the circumference of the port at the other end of the connecting pipe, a plurality of anti-slip bumps are provided on the circumference of the flange, a connecting hole is provided at the center of the flange, the connecting hole is connected to the connecting pipe, and a first internal thread is provided on the inner wall of the connecting hole.

[0008] The connector B is cylindrical, a second external thread is arranged on the circumference of the connector B, and an assembly hole is arranged on the end surface of the connector B corresponding to the rotating shaft, and the assembly hole is threadedly connected to the rotating shaft.

[0009] The rotating shaft is in the shape of a long round rod. A first boss is provided at one end of the rotating shaft. The rotating shaft is connected to the worm gear of the worm and gear reducer through key and keyway fitting. The first boss of the rotating shaft is movably connected to the movable assembly B.

[0010] The movable assembly A includes a first sleeve and a first connecting fork. The first sleeve is in the shape of a variable-diameter circular ring. A stepped hole is provided inside the first sleeve. A plurality of first balls are annularly and movably installed on the inner boss of the stepped hole. A first connecting fork is threadedly installed at one end of the first sleeve. The cross-section of the first connecting fork is in the shape of a "U". A first bolt is inserted into the first connecting fork.

[0011] The movable assembly B includes a second sleeve and a second connecting fork. The second sleeve is in the shape of a variable-diameter circular ring. A stepped hole is provided inside the second sleeve. A plurality of second balls are annularly and movably installed on the inner boss of the stepped hole. A second connecting fork is threadedly installed at one end of the second sleeve. The cross-section of the second connecting fork is in the shape of a "U". A second bolt is inserted into the second connecting fork.

[0012] A second boss is provided at one end of the connecting screw rod, and a handle is detachably installed at the other end of the connecting screw rod.

[0013] The beneficial effects of the present utility model compared with the prior art are as follows:

[0014] The rotating joint detection device installs the rotating joint between the connecting head A and the connecting head B through the cooperation of the connecting head A and the connecting head B. By injecting a medium into the connecting head A, it can be observed whether there is leakage in the rotating joint. The driving motor drives the worm gear of the worm and gear reducer to rotate, the worm gear drives the rotating shaft to rotate, and the rotating shaft drives the rotating joint to rotate through the connecting head B to test whether the rotating joint can rotate. By rotating the connecting screw rod, the connecting screw rod pulls the rotating joint through the electronic hanging scale and the rotating shaft to test the tensile strength of the rotating joint, and the tensile value of the rotating joint is displayed through the electronic hanging scale. The rotating joint detection device integrates the three detections of tensile strength, sealing and relative rotation, and solves the problems of time-consuming and low detection efficiency of the existing detection means. Description of the Drawings

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 is a front-view structural schematic diagram of the present utility model;

[0017] Figure 3 is a cross-sectional structural schematic diagram of the rotating shaft and the movable assembly A;

[0018] Figure 4 is a cross-sectional structural schematic diagram of the connecting screw rod and the movable assembly B;

[0019] Figure 5 It is a structural schematic diagram of a rotary joint.

[0020] In the figure: 1. Frame; 2. Mounting plate A; 3. Connector A; 4. Connecting pipe; 5. First external thread; 6. Flange; 7. Anti-slip bump; 8. Connecting hole; 9. First internal thread; 10. Mounting plate B; 11. Connecting screw; 12. Second boss; 13. Handle; 14. Movable assembly A; 15. Electronic hanging scale; 16. First kit; 17. First connecting fork; 18. First ball; 19. First bolt; 20. Worm and worm gear reducer; 21. Driving motor; 22. Rotating shaft; 23. First boss; 24. Movable assembly B; 25. Second kit; 26. Second connecting fork; 27. Second ball; 28. Second bolt; 29. Connector B; 30. Second external thread; 31. Rotary joint. Specific implementation mode

[0021] As shown in the Figures 1-5 appendix

[0022] The rotary joint detection device includes a frame 1. One end of the frame 1 is fixedly installed with a mounting plate A 2. The mounting plate A 2 is a rectangular plate. A connector A 3 is movably installed on the mounting plate A 2. The connector A 3 includes a connecting pipe 4. The connecting pipe 4 is fixedly installed on the mounting plate A 2. A first external thread 5 is provided on the circumference of one end port of the connecting pipe 4. A flange 6 is provided on the circumference of the other end port of the connecting pipe 4. A plurality of anti-slip bumps 7 are provided on the circumference of the flange 6. A connecting hole 8 is provided at the center of the flange 6. The connecting hole 8 communicates with the connecting pipe 4. A first internal thread 9 is provided on the inner wall of the connecting hole 8.

[0023] The other end of the frame 1 is fixedly installed with a mounting plate B 10. The mounting plate B 10 is a rectangular plate. A connecting screw 11 is threadedly installed on the mounting plate B 10. A second boss 12 is provided at one end of the connecting screw 11. A handle 13 is detachably installed at the other end of the connecting screw 11.

[0024] One end of the connecting screw rod 11 with the second boss 12 is equipped with an electronic hanging scale 15 (produced by Hebei Hanjiang Lifting Equipment Manufacturing Co., Ltd.) through a movable assembly A14. The movable assembly A14 includes a first kit 16 and a first connecting fork member 17. The first kit 16 is in the shape of a variable-diameter circular ring. The first kit 16 is sleeved on the connecting screw rod 11. A stepped hole is provided inside the first kit 16. The second boss 12 of the connecting screw rod 11 forms a limit for the stepped hole of the first kit 16. A plurality of first balls 18 are annularly and movably installed on the inner boss of the stepped hole. The first balls 18 are in sliding connection with the second boss 12 of the connecting screw rod 11 through cooperation. One end of the first kit 16 is threadedly installed with a first connecting fork member 17. The first connecting fork member 17 forms a limit for the connecting screw rod 11. The cross-section of the first connecting fork member 17 is in the shape of a "U". The first connecting fork member 17 is in plug-in connection with one end of the electronic hanging scale 15 and is locked by a first bolt 19.

[0025] A worm and worm gear reducer 20 is fixedly installed on the frame 1 between the electronic hanging scale 15 and the connecting head A3. A driving motor 21 is fixedly installed on the worm and worm gear reducer 20. The transmission shaft of the driving motor 21 is fixedly connected to the worm of the worm and worm gear reducer 20. A rotating shaft 22 is inserted into the central hole of the worm wheel of the worm and worm gear reducer 20. The rotating shaft 22 is in the shape of a long round rod. The rotating shaft 22 is in plug-in connection with the worm wheel of the worm and worm gear reducer 20 through the cooperation of a key and a keyway. During operation, the transmission shaft of the driving motor 21 is transmitted to the rotating shaft 22 after being reduced by the worm and worm gear, so as to drive the rotating shaft 22 to rotate.

[0026] One end of the rotating shaft 22 is provided with a first boss 23. The first boss 23 of the rotating shaft 22 is movably connected to a movable assembly B24. The other end of the rotating shaft 22 is connected to the electronic hanging scale 15 through the movable assembly B24. The movable assembly B24 includes a second kit 25 and a second connecting fork member 26. The second kit 25 is in the shape of a variable-diameter circular ring. A stepped hole is provided inside the second kit 25. The first boss 23 of the rotating shaft 22 forms a limit for the stepped hole of the second kit 25. A plurality of second balls 27 are annularly and movably installed on the inner boss of the stepped hole. The second balls 27 are in sliding connection with the first boss 23 of the rotating shaft 22.

[0027] One end of the second kit 25 is threadedly installed with a second connecting fork member 26. The cross-section of the second connecting fork member 26 is in the shape of a "U". A second bolt 28 is inserted into the second connecting fork member 26. The second connecting fork member 26 is in plug-in connection with the other end of the electronic hanging scale 15 and is locked by the second bolt 28.

[0028] One end of the rotating shaft 22 is threadedly installed with a connecting head B29. The connecting head B29 is in the shape of a cylinder. A second external thread 30 is provided on the circumference of the connecting head B29. An assembly hole is provided on the end face of the connecting head B29 corresponding to the rotating shaft 22. The assembly hole is in threaded connection with the rotating shaft 22.

[0029] When the rotary joint detection device is in use, first, one end of the rotary joint 31 is threadedly connected to the first internal thread 9 of the connector A3. Then, the other end of the rotary joint 31 is threadedly connected to the second external thread 30 of the connector B29. After the rotary joint 31 is installed, one end of the connector A3 with the first external thread 5 is connected to the connecting pipe 4. A medium (such as oil, water, etc.) is pressured into the connector A3 through the connecting pipe 4. The medium in the connector A3 enters the rotary joint 31. The staff observes whether there is any medium leakage in the rotary joint 31 to detect the sealing performance of the rotary joint 31. Then, the driving motor 21 is started. The driving motor 21 drives the rotary shaft 22 to rotate through the worm and worm gear reducer 20. The rotary shaft 22 drives the rotary joint 31 to rotate. Since one end of the rotary joint 31 is threadedly connected to the connector A3 and the connector A3 is fixedly installed on the mounting plate A2, the rotary joint 31 rotates at its own movable position. The staff observes whether there is any medium leakage problem when the rotary joint 31 rotates to detect the rotational performance of the rotary joint 31.

[0030] Then, the staff manually rotates the handle 13. The handle 13 drives the connecting screw 11 to rotate outwards. During the rotation of the connecting screw 11, a pulling force is generated on the rotary shaft 22 through the movable component A14, the electronic hoist scale 15, and the movable component B24. This pulling force is transmitted from the rotary shaft 22 to the rotary joint 31. The electronic hoist scale 15 can display the value of this pulling force. When the pulling force reaches a certain value, the rotation is stopped. The staff continues to observe whether there is any medium leakage problem in the rotary joint 31 to detect the tensile resistance performance of the rotary joint 31. Thus, the entire detection work of the rotary joint 31 is completed.

[0031] The rotary joint detection device installs the rotary joint 31 between the connector A3 and the connector B29 through the mutual cooperation of the connector A3 and the connector B29. By injecting a medium into the connector A3, it can be observed whether there is any leakage in the rotary joint 31. By driving the worm of the worm and worm gear reducer 20 with the driving motor 21, the worm drives the rotary shaft 22 to rotate. The rotary shaft 22 drives the rotary joint 31 to rotate through the connector B29 to test whether the rotary joint 31 can rotate relatively. By rotating the connecting screw 11, the connecting screw 11 pulls the rotary joint 31 through the electronic hoist scale 15 and the rotary shaft 22 to test the tensile resistance ability of the rotary joint 31, and the electronic hoist scale 15 displays the tensile resistance value of the rotary joint 31. The rotary joint detection device integrates the three detections of tensile resistance, sealing, and rotation, solving the problems of time-consuming and low detection efficiency of the existing detection means.

Claims

1. A rotary joint detection device, comprising a frame (1), characterized in that: One end of the frame (1) is equipped with a connector A (3) through a mounting plate A (2), and the other end of the frame (1) is threadedly installed with a connecting screw (11) through a mounting plate B (10). One end of the connecting screw (11) is equipped with an electronic hanging scale (15) through a movable assembly A (14). A worm and worm gear reducer (20) is installed on the frame (1) between the electronic hanging scale (15) and the connector A (3). A driving motor (21) is installed on the worm and worm gear reducer (20). The transmission shaft of the driving motor (21) is fixedly connected to the worm of the worm and worm gear reducer (20). A rotating shaft (22) is inserted into the central hole of the worm gear of the worm and worm gear reducer (20). One end of the rotating shaft (22) is threadedly installed with a connector B (29), and the other end of the rotating shaft (22) is connected to the electronic hanging scale (15) through a movable assembly B (24).

2. The rotary joint detection device according to claim 1, characterized in that: The connector A (3) includes a connecting pipe (4). The connecting pipe (4) is movably installed on the mounting plate A (2). A first external thread (5) is provided on the circumference of one end port of the connecting pipe (4). A flange (6) is provided on the circumference of the other end port of the connecting pipe (4). A plurality of anti-slip bumps (7) are provided on the circumference of the flange (6). A connecting hole (8) is provided in the center of the flange (6). The connecting hole (8) communicates with the connecting pipe (4). A first internal thread (9) is provided on the inner wall of the connecting hole (8).

3. The rotary joint detection device according to claim 1, characterized in that: The connector B (29) is cylindrical. A second external thread (30) is provided on the circumference of the connector B (29). An assembly hole is provided on the end face of the connector B (29) corresponding to the rotating shaft (22). The assembly hole is threadedly connected to the rotating shaft (22).

4. A rotary joint detection device according to claim 1, characterized in that: The rotating shaft (22) is in the shape of a long round rod. A first boss (23) is provided at one end of the rotating shaft (22). The rotating shaft (22) is inserted and connected to the worm gear of the worm and worm gear reducer (20) through key and keyway cooperation. The first boss (23) of the rotating shaft (22) is movably connected to the movable assembly B (24).

5. The rotary joint detection device according to claim 1, characterized in that: The movable assembly A (14) includes a first sleeve (16) and a first connecting fork (17). The first sleeve (16) is in the shape of a variable-diameter circular ring. A stepped hole is provided inside the first sleeve (16). A plurality of first balls (18) are movably installed in a ring shape on the inner boss of the stepped hole. One end of the first sleeve (16) is threadedly installed with a first connecting fork (17). The cross section of the first connecting fork (17) is in the shape of a "U". A first bolt (19) is inserted into the first connecting fork (17).

6. The rotary joint detection device according to claim 1, wherein: The movable assembly B (24) includes a second sleeve (25) and a second connecting fork (26). The second sleeve (25) is in the shape of a variable-diameter circular ring. A stepped hole is provided inside the second sleeve (25). A plurality of second balls (27) are movably installed in a ring shape on the inner boss of the stepped hole. One end of the second sleeve (25) is threadedly installed with a second connecting fork (26). The cross section of the second connecting fork (26) is in the shape of a "U". A second bolt (28) is inserted into the second connecting fork (26).

7. A rotary joint detection device according to claim 1, characterized in that: One end of the connecting screw (11) is provided with a second boss (12), and a handle (13) is detachably installed at the other end of the connecting screw (11).

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