Butterfly valve test bench for motor car

Abstract

The utility model relates to butterfly valve test technical field, concretely is a kind of butterfly valve test bench for bullet train, including test bed ontology, the upper left side of test bed ontology is equipped with connecting frame, the left part of connecting frame is equipped with sliding slot in both sides, the inner wall of sliding slot is slidably connected with slide, the right side of slide is equipped with support plate, the similar side right part of both sides of support plate is equipped with injection frame, the outside of injection frame is equipped with clamping ring;By driving the sliding of two slides along the inner wall of sliding slot, the spacing between two support plates can be flexibly adjusted, in this way, it can ensure that the inner wall of one end of insertion ring and butterfly valve always remains in the state of insertion, at the same time, by means of the opposite movement of upper and lower support plates, one side of clamping ring is tightly attached to one end of butterfly valve, so as to realize the effective clamping of the measured butterfly valve, and then improve the adaptability and use efficiency of test bed.

Description

Technical Field

[0001] This utility model relates to the field of butterfly valve testing technology, and more specifically, to a butterfly valve test bench for high-speed trains. Background Technology

[0002] With the rapid development of China's high-speed rail network, the quality and reliability requirements of core components of EMU trains are becoming increasingly stringent. Among them, the butterfly valve, as an important actuator of the fluid control system, has its sealing performance, pressure resistance and action response characteristics directly related to the safety of train operation. At present, the industry generally uses a special test bench to conduct functional verification and type testing of butterfly valves before they leave the factory.

[0003] Current mainstream butterfly valve test benches generally use an integrated rigid clamping mechanism, which uses bolts to directly fix the butterfly valve flange to the test bench pipeline interface. Although this solution can ensure the stability of a single test process, once the length of the butterfly valve under test changes, it is difficult to effectively adapt to butterfly valves of different lengths because the axial spacing of the clamping mechanism is fixed and cannot be adjusted. This makes it impossible for the test bench to be used normally, thus restricting the versatility and efficiency of the test bench. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, this utility model provides a test bench for butterfly valves of high-speed trains, which solves the problem that in the prior art, the axial spacing of the clamping mechanism is fixed and cannot be adjusted, making it difficult to achieve effective adaptation with butterfly valves of different lengths, thus preventing the test bench from being used normally and restricting the versatility and efficiency of the test bench.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a test bench for butterfly valves used in high-speed trains, comprising a test bench body, a connecting frame installed on the upper left side of the test bench body, and sliding grooves provided on both the upper and lower sides of the left side of the connecting frame, with a sliding plate slidably connected to the inner wall of the sliding groove, a support plate installed on the right side of the sliding plate, an injection frame installed on the right side of the adjacent side of the upper and lower support plates, a clamping ring installed on the outer side of the injection frame, an insertion ring installed on the adjacent end of the clamping rings on both the upper and lower sides, and a connecting pipe installed on the opposite end of the injection frames on both the upper and lower sides.

[0006] A motor is installed on the top left side of the connecting frame, and a bidirectional lead screw is installed at the output end of the motor.

[0007] The bottom end of the bidirectional lead screw passes through the slide groove and is rotatably connected to the lower part of the connecting frame. The top end of the bidirectional lead screw passes through the top of the connecting frame, and the bidirectional lead screw is threadedly connected to the two slide plates.

[0008] The clamping rings on both the upper and lower sides are equipped with multiple positioning posts at their adjacent ends. The injection frame has movable grooves on both the left and right sides. Movable plates are slidably connected to the inner walls of the movable grooves on both the upper and lower sides on their adjacent sides. Springs are installed on the opposite sides of the movable plates on both the upper and lower sides. A sealing ring is installed on the outer side of the insertion ring.

[0009] The positioning columns on the upper and lower sides are symmetrically designed, and the opposite sides of the moving plates on the left and right sides are installed between the clamping rings.

[0010] The end of the spring furthest from the moving plate is mounted on the inner wall of the moving groove.

[0011] The upper and lower insertion rings are symmetrically designed, and the end of the connecting tube near the injection frame passes through the support plate. The left side of the support plate is fitted with the connecting frame.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] In the above scheme, by driving the upper and lower sliding plates to slide along the inner wall of the slide groove, the distance between the two support plates can be flexibly adjusted. In this way, it can be ensured that the insertion ring and the inner wall of one end of the butterfly valve are always in an inserted state. At the same time, with the help of the opposite movement of the upper and lower support plates, one side of the clamping ring is pushed to fit tightly against one end of the butterfly valve, thereby achieving effective clamping of the butterfly valve under test, and thus improving the adaptability and efficiency of the test bench. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a right view of the connecting frame of this utility model;

[0016] Figure 3 for Figure 2 Cross-sectional view of part of the structure at point AA;

[0017] Figure 4 This is a right view of the injection frame of this utility model;

[0018] Figure 5 for Figure 4 Cross-sectional view of the structure at point BB.

[0019] [Figure Labels]

[0020] 1. Test bench body; 2. Motor; 3. Connecting frame; 4. Connecting pipe; 5. Slide groove; 6. Slide plate; 7. Bidirectional lead screw; 8. Support plate; 9. Injection frame; 10. Clamping ring; 11. Positioning column; 12. Insertion ring; 13. Sealing ring; 14. Spring; 15. Moving groove; 16. Moving plate. Detailed Implementation

[0021] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0022] Example 1: Please refer to Figures 1 to 5 This utility model provides a technical solution: a test bench for a butterfly valve used in high-speed trains, including a test bench body 1. A connecting frame 3 is installed on the upper left side of the test bench body 1. Slide grooves 5 are provided on both the upper and lower sides of the left side of the connecting frame 3. A slide plate 6 is slidably connected to the inner wall of the slide groove 5. A support plate 8 is installed on the right side of the slide plate 6. An injection frame 9 is installed on the right side of the adjacent side of the upper and lower support plates 8. A clamping ring 10 is installed on the outer side of the injection frame 9. An insertion ring 12 is installed on the adjacent end of the upper and lower clamping rings 10. A connecting pipe 4 is installed on the opposite end of the upper and lower injection frames 9. The upper and lower insertion rings 12 are symmetrically designed to facilitate insertion into the inner wall of one end of the butterfly valve, thereby increasing the sealing performance during the test. The end of the connecting pipe 4 near the injection frame 9 passes through the support plate 8. The left side of the support plate 8 fits against the connecting frame 3, thereby facilitating the clamping of the butterfly valve and increasing the stability of the movement of the support plate 8.

[0023] First, slide the slide plate 6 along the inner wall of the slide groove 5, and simultaneously move the support plate 8 to adjust the distance between the upper and lower support plates 8. Then, fit one end of the butterfly valve with the lower clamping ring 10 and place it on the outside of the insertion ring 12. Then, drive the upper and lower support plates 8 to move towards each other, and keep the upper clamping ring 10 in contact with the top of the butterfly valve. At the same time, insert the insertion ring 12 into the upper inner wall of the butterfly valve. At this time, one end of the injection frame 9 is inserted into the inner wall of the butterfly valve. Then, the test can be carried out through the connecting pipe 4. After completion, slide the two support plates 8 in opposite directions. Due to the weight of the butterfly valve itself, it will always keep in contact with the lower clamping ring 10, while the upper clamping ring 10 is reset. Then, the butterfly valve can be removed for subsequent butterfly valve testing.

[0024] Example 2: Based on Example 1, in order to realize the movement of the drive support plate 8, a motor 2 is installed on the top left side of the connecting frame 3, and a bidirectional lead screw 7 is installed at the output end of the motor 2; the bottom end of the bidirectional lead screw 7 passes through the slide groove 5 and is rotatably connected to the lower part of the connecting frame 3, the top end of the bidirectional lead screw 7 passes through the top of the connecting frame 3, and the bidirectional lead screw 7 is threadedly connected to the two slide plates 6. By starting the motor 2, the bidirectional lead screw 7 is driven to rotate, thereby synchronously driving the upper and lower support plates 8 to move towards or away from each other, so as to adapt to butterfly valves of different lengths.

[0025] First, start motor 2 to drive the bidirectional screw 7 to rotate, thereby causing the slide plate 6 to slide along the inner wall of the slide groove 5, and simultaneously driving the support plate 8 to move, so as to adjust the distance between the upper and lower support plates 8. Then, put one end of the butterfly valve into contact with the lower clamping ring 10 and put it on the outside of the insertion ring 12. Then, reverse the bidirectional screw 7 to drive the upper and lower support plates 8 to move towards each other, and drive the upper clamping ring 10 to keep in contact with the top of the butterfly valve, while allowing the insertion ring 12 to be inserted into the upper inner wall of the butterfly valve, so as to clamp and fix butterfly valves of different lengths.

[0026] Example 3: Based on Example 2, in order to increase the sealing and stability during the test, multiple positioning posts 11 are installed at the near ends of the upper and lower clamping rings 10. Moving grooves 15 are opened on both the left and right sides of the injection frame 9. Moving plates 16 are slidably connected to the near sides of the inner walls of the upper and lower moving grooves 15. Springs 14 are installed on the far sides of the upper and lower moving plates 16. A sealing ring 13 is installed on the outer side of the insertion ring 12. The positioning posts 11 on the upper and lower sides are symmetrically designed. The far sides of the moving plates 16 on the left and right sides are installed between the clamping rings 10. Thus, by driving the upper and lower clamping rings 10 to engage with one end of the butterfly valve, the positioning posts 11 are simultaneously inserted into the threaded holes of the butterfly valve flange for clamping and fixing. The end of the spring 14 away from the moving plate 16 is installed on the inner wall of the moving groove 15, thereby using the spring 14 to buffer the impact caused when clamping the butterfly valve and improve the stability during the test.

[0027] One end of the butterfly valve is fitted with the lower clamping ring 10 and sleeved on the outside of the insertion ring 12, thereby increasing the sealing between the sealing ring 13 and the butterfly valve. At the same time, the positioning pin 11 is inserted into the threaded hole of the butterfly valve flange. Then, the bidirectional screw 7 is reversed to drive the upper and lower support plates 8 to move towards each other, and to keep the upper clamping ring 10 in contact with the top of the butterfly valve. At the same time, the insertion ring 12 is inserted into the upper inner wall of the butterfly valve. During the clamping process, the upper and lower clamping rings 10 are squeezed and slide along the outside of the injection frame 9, and drive the moving plate 16 to move along the inner wall of the moving groove 15. At the same time, the spring 14 is squeezed and compressed. At this time, one end of the injection frame 9 is inserted into the inner wall of the butterfly valve, and then the test can be carried out through the connecting pipe 4.

[0028] The working process of this utility model is as follows:

[0029] In use, first start motor 2 to drive the double-acting screw 7 to rotate, thereby causing the slide plate 6 to slide along the inner wall of the slide groove 5, and simultaneously moving the support plate 8 to adjust the distance between the upper and lower support plates 8. Then, fit one end of the butterfly valve with the lower clamping ring 10 and sleeve it on the outside of the insertion ring 12, thereby using the sealing ring 13 to increase the sealing between it and the butterfly valve. At the same time, the positioning pin 11 will be inserted into the threaded hole of the butterfly valve flange. Then, reverse the double-acting screw 7 to drive the upper and lower support plates 8 to move towards each other, and keep the upper clamping ring 10 in contact with the top of the butterfly valve, while inserting the insertion ring 12 into the upper inner wall of the butterfly valve. During the holding process, the upper and lower clamping rings 10 are squeezed and slide backward along the outer side of the injection frame 9, driving the moving plate 16 to move along the inner wall of the moving groove 15. At the same time, the spring 14 is squeezed and compressed. At this time, one end of the injection frame 9 is inserted into the inner wall of the butterfly valve, and then the test can be carried out through the connecting pipe 4. After completion, the two side support plates 8 slide backward. Due to the weight of the butterfly valve itself, it will always be in contact with the lower clamping ring 10, while the upper clamping ring 10 will be pushed back to its original position by the elastic force of the spring 14. Then the butterfly valve can be removed, and the lower spring 14 is used to push the clamping ring 10 back to its original position for subsequent butterfly valve testing.

[0030] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0031] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0032] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A test bench for butterfly valves used in high-speed trains, characterized in that, The test bench body (1) is provided with a connecting frame (3) installed on the upper left side of the test bench body (1). The upper and lower sides of the left side of the connecting frame (3) are provided with sliding grooves (5). The inner wall of the sliding groove (5) is slidably connected to a sliding plate (6). The right side of the sliding plate (6) is provided with a support plate (8). The right side of the support plate (8) on the upper and lower sides is provided with an injection frame (9). The outside of the injection frame (9) is provided with a clamping ring (10). The upper and lower sides of the clamping ring (10) are provided with an insertion ring (12) at the close end. The upper and lower sides of the injection frame (9) are provided with a connecting pipe (4) at the far end.

2. The test bench for butterfly valves used in high-speed trains according to claim 1, characterized in that, A motor (2) is installed on the top left side of the connecting frame (3), and a bidirectional lead screw (7) is installed at the output end of the motor (2).

3. The test bench for butterfly valves used in high-speed trains according to claim 2, characterized in that, The bottom end of the bidirectional lead screw (7) passes through the slide groove (5) and is rotatably connected to the lower part of the connecting frame (3). The top end of the bidirectional lead screw (7) passes through the top of the connecting frame (3), and the bidirectional lead screw (7) is threadedly connected to the two slide plates (6).

4. The test bench for butterfly valves used in high-speed trains according to claim 1, characterized in that, Multiple positioning posts (11) are installed at the near ends of the clamping rings (10) on both the upper and lower sides. Movable grooves (15) are opened on both the left and right sides of the injection frame (9). Movable plates (16) are slidably connected to the near sides of the inner walls of the movable grooves (15) on both the upper and lower sides. Springs (14) are installed on the far sides of the movable plates (16) on both the upper and lower sides. A sealing ring (13) is installed on the outer side of the insertion ring (12).

5. The test bench for butterfly valves used in high-speed trains according to claim 4, characterized in that, The positioning posts (11) on the upper and lower sides are symmetrically designed, and the opposite sides of the moving plates (16) on the left and right sides are installed between the clamping rings (10).

6. The test bench for butterfly valves used in high-speed trains according to claim 4, characterized in that, The end of the spring (14) away from the moving plate (16) is mounted on the inner wall of the moving groove (15).

7. The test bench for butterfly valves used in high-speed trains according to claim 1, characterized in that, The insertion rings (12) on the upper and lower sides are symmetrically designed. The end of the connecting tube (4) near the injection frame (9) passes through the support plate (8). The left side of the support plate (8) is attached to the connecting frame (3).

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