Multi-station hydraulic valve testing machine

Abstract

The utility model discloses a multi-station hydraulic valve testing machine, and particularly relates to the technical field of valve testing, which comprises a workbench, a support frame is arranged on the upper end face of the workbench, a hydraulic valve tester is arranged on the upper end face of the support frame, a push-pull assembly is arranged on the support frame, and the push-pull assembly is arranged on the workbench. The push-and-pull assembly is used for pushing and pulling the two hydraulic valve testers to move in the opposite direction or the back-to-back direction at the same time, and the supporting frame is provided with a placement buffering assembly. According to the utility model, the two hydraulic valve testers can be moved towards the detected hydraulic valve at the same time through the arrangement of the push-pull assembly, so that the use of a hydraulic push rod can be saved, the production cost of the device is reduced, and the synchronization rate of the moving direction and distance of the hydraulic valve testers is high; in this way, the problem that when the hydraulic valve is clamped, due to the fact that the clamping distances on the two sides are not synchronous, the position deviates, and consequently the testing precision of the hydraulic valve is low can be solved.

Description

Technical Field

[0001] This utility model relates to the field of valve testing technology, and more specifically, to a multi-station hydraulic valve testing machine. Background Technology

[0002] Valves play a crucial role in hydraulic systems and require excellent performance and reliability. Valve testing machines can perform comprehensive tests on valves during production, inspection, and maintenance to verify their performance parameters, such as flow rate, pressure, and sealing performance, ensuring their reliability in actual operation and preventing potential failures and accidents.

[0003] For example, a multi-station hydraulic valve testing machine with application number 202322800012.X, through the combined action of the valve testing mechanism's connecting flange, nozzle, inlet, multi-station test plate, first hydraulic push rod, and base plate, transports multiple sets of valves to the valve testing mechanism. Then, the first hydraulic push rod pushes the multi-station test plate, aligning the connecting flange with the flange interfaces at both ends of the valve. An external test water source is then connected through the inlet, transported to the connecting flange, and sprayed into the valve through the nozzle to test the valve's flow rate, pressure, and sealing performance. The connecting flange is equipped with flanges of different sizes to accommodate valves of different sizes, improving compatibility. An external water source flange is installed at the inlet to ensure the sealing of the connection between the water supply pipe and the valve testing mechanism during testing.

[0004] It has the following disadvantages:

[0005] Two (or more) first hydraulic push rods are required to ensure the stability of the horizontal movement of the multi-station test plate. However, the use of multiple first hydraulic push rods increases the production cost of the device. Since the movement of the multi-station test plate is accomplished by the simultaneous operation of multiple first hydraulic push rods, the kinetic energy of the first hydraulic push rods will decay differently over time. When the two multi-station test plates clamp the valve under the push of the first hydraulic push rods, the clamping distances on both sides of the valve will be asynchronous. This will cause the valve to shift in position during the clamping process. This valve position shift can easily cause the two ends of the valve to deviate from the inlet of the multi-station test plate, which will reduce the accuracy of the valve test. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a multi-station hydraulic valve testing machine to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a multi-station hydraulic valve testing machine, including a workbench, a support frame provided on the upper surface of the workbench, a hydraulic valve tester provided on the upper surface of the support frame, a push-pull assembly provided on the support frame, the push-pull assembly being used to push and pull two hydraulic valve testers to move simultaneously in opposite or opposite directions, and a placement buffer assembly provided on the support frame, the placement buffer assembly being used to mitigate the inertial impact force of placing the hydraulic valve on the support frame.

[0008] In a preferred embodiment, the push-pull assembly includes a limiting block, a guide groove, a turntable, a slider, and a slide groove. The limiting block is disposed on the hydraulic valve tester, and the guide groove is formed on the support frame. The limiting block on the hydraulic valve tester is slidably connected to the guide groove on the support frame.

[0009] In a preferred embodiment, the turntable is rotatably connected to the support frame, the slider is disposed on the hydraulic valve tester, the groove is formed on the support frame, and the slider on the hydraulic valve tester is slidably connected to the groove on the support frame.

[0010] In a preferred embodiment, a drive motor is provided below the turntable, the drive motor is connected to the worktable, the output end of the drive motor is connected to the turntable, and two connecting plates are rotatably connected to the turntable. One end of each of the two connecting plates is rotatably connected to two limit blocks through a connecting rod.

[0011] In a preferred embodiment, the placement buffer assembly includes a groove formed on the support frame, a buffer placement plate disposed inside the groove, and a plurality of buffer springs fixedly disposed at the bottom end of the inner side of the groove, one end of the buffer springs being connected to the buffer placement plate inside the groove.

[0012] In a preferred embodiment, the buffer placement plate is provided with limiting plates at both ends, and two limiting grooves are opened inside the groove. The limiting plates at both ends of the limiting plate are slidably connected in the two limiting grooves inside the groove.

[0013] In a preferred embodiment, the support frame has a U-shaped cross-section, and the turntable and drive motor are located below the support frame.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] 1. By setting up the push-pull assembly, two hydraulic valve testers can be moved towards the hydraulic valve being tested simultaneously. This not only saves the use of hydraulic push rods, thereby reducing the production cost of the device, but also ensures a high synchronization rate between the movement direction and distance of the hydraulic valve testers. This reduces the problem of low testing accuracy of hydraulic valves caused by positional shifts due to asynchronous clamping distances on both sides when the hydraulic valve is clamped.

[0016] 2. By placing a buffer component, the inertial impact force of the hydraulic valve placed on the support frame can be mitigated, thus preventing the hydraulic valve from colliding with the support frame and causing dents to the hydraulic valve. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a first-person exploded view of the support frame and hydraulic valve tester of this utility model.

[0019] Figure 3 This is a second-view exploded view of the support frame and hydraulic valve tester of this utility model.

[0020] Figure 4 This is an exploded view of the support frame and buffer placement assembly of this utility model.

[0021] The attached diagram is labeled as follows: 1. Workbench; 2. Support frame; 3. Hydraulic valve tester; 4. Push-pull assembly; 41. Limit block; 42. Guide groove; 43. Turntable; 44. Drive motor; 45. Connecting plate; 46. Slider; 47. Slide groove; 5. Buffer placement assembly; 51. Groove; 52. Buffer placement plate; 53. Buffer spring; 54. Limit groove; 55. Limit plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] As attached Figure 1As shown, this utility model provides a multi-station hydraulic valve testing machine, including a workbench 1, a support frame 2 is provided on the upper surface of the workbench 1, a hydraulic valve tester 3 is provided on the upper surface of the support frame 2, a push-pull assembly 4 is provided on the support frame 2, the push-pull assembly 4 is used to push and pull two hydraulic valve testers 3 to move simultaneously in opposite or opposite directions, and a placement buffer assembly 5 is provided on the support frame 2, the placement buffer assembly 5 is used to mitigate the inertial impact force of placing the hydraulic valve on the support frame 2.

[0024] It should be noted that the hydraulic valve tester 3 has multiple test ports. The multiple test ports on the two hydraulic valve testers 3 are positioned in pairs and correspond to each other. The hydraulic valve is placed on the buffer assembly 5 and is located between two corresponding test ports.

[0025] As attached Figure 2 and Figure 3 As shown, the push-pull assembly 4 includes a limiting block 41, a guide groove 42, a turntable 43, a slider 46, and a slide groove 47. The limiting block 41 is set on the hydraulic valve tester 3, and the guide groove 42 is opened on the support frame 2. The limiting block 41 on the hydraulic valve tester 3 is slidably connected to the guide groove 42 on the support frame 2.

[0026] It should be noted that the cross-sections of slider 46 and groove 47 are isosceles trapezoids, and the sizes of slider 46 and groove 47 are matched.

[0027] The turntable 43 is rotatably connected to the support frame 2, the slider 46 is set on the hydraulic valve tester 3, the groove 47 is opened on the support frame 2, and the slider 46 on the hydraulic valve tester 3 is slidably connected in the groove 47 on the support frame 2.

[0028] A drive motor 44 is provided below the turntable 43. The drive motor 44 is connected to the worktable 1. The output end of the drive motor 44 is connected to the turntable 43. Two connecting plates 45 are rotatably connected to the turntable 43. One end of each of the two connecting plates 45 is rotatably connected to two limit blocks 41 through a connecting rod.

[0029] The specific implementation method is as follows: When using this utility model, the hydraulic valve to be tested is placed on the placement buffer assembly 5, and then the drive motor 44 is started. The drive motor 44 drives the turntable 43 to rotate. The rotation of the turntable 43 causes one end of the connecting plate 45 to rotate in an arc. The rotation of one end of the connecting plate 45 causes the limiting block 41 connected to the connecting plate 45 to move along the guide groove 42 toward the hydraulic valve on the placement buffer assembly 5. The movement of the limiting block 41 causes the hydraulic valve tester 3 to move. When the two hydraulic valve testers 3 clamp the hydraulic valve on the placement buffer assembly 5, the hydraulic valve can be tested by the hydraulic valve tester 3. When the hydraulic valve test is finished, the drive motor 44 is started in reverse, and then the hydraulic valve between the two hydraulic valve testers 3 can be removed.

[0030] By setting up the push-pull assembly 4, two hydraulic valve testers 3 can be moved towards the hydraulic valve being tested simultaneously. This not only saves the use of hydraulic push rods, thereby reducing the production cost of the device, but also ensures that the movement direction and distance of the hydraulic valve testers 3 are highly synchronized. This reduces the problem of low testing accuracy of hydraulic valves caused by positional shifts due to asynchronous clamping distances on both sides when the hydraulic valve is clamped.

[0031] As attached Figure 4 As shown, the placement buffer assembly 5 includes a groove 51 formed on the support frame 2, a buffer placement plate 52 is provided inside the groove 51, and a plurality of buffer springs 53 are fixedly provided at the bottom of the inner side of the groove 51. One end of the buffer spring 53 is connected to the buffer placement plate 52 inside the groove 51.

[0032] Limiting plates 55 are provided at both ends of the buffer placement plate 52, and two limiting grooves 54 are opened inside the groove 51. The limiting plates 55 at both ends of the limiting plate 55 are slidably connected in the two limiting grooves 54 inside the groove 51.

[0033] The specific implementation method is as follows: When using this utility model, when the hydraulic valve is placed on the buffer assembly 5, the hydraulic valve first contacts the buffer placement plate 52. As the hydraulic valve is placed, the buffer placement plate 52 is forced to move towards the bottom of the inner side of the groove 51. The movement of the buffer placement plate 52 compresses the buffer spring 53 at the bottom of the inner side of the groove 51.

[0034] By placing the buffer component 5, the inertial impact force of the hydraulic valve placed on the support frame 2 can be mitigated, thus preventing the hydraulic valve from colliding with the support frame 2 and causing dents to appear on the hydraulic valve.

[0035] The cross-section of the support frame 2 is U-shaped, and the turntable 43 and the drive motor 44 are located below the support frame 2.

[0036] Working principle of this utility model:

[0037] When using this utility model, the hydraulic valve to be tested is placed on the placement buffer assembly 5, and the hydraulic valve contacts the buffer placement plate 52. As the hydraulic valve is placed, the buffer placement plate 52 is moved towards the bottom of the inner side of the groove 51 by force. The movement of the buffer placement plate 52 compresses the buffer spring 53 at the bottom of the inner side of the groove 51. Then, the drive motor 44 is started, and the drive motor 44 drives the turntable 43 to rotate. The rotation of the turntable 43 causes one end of the connecting plate 45 to rotate in an arc. The rotation of one end of the connecting plate 45 causes the limiting block 41 connected to the connecting plate 45 to move along the guide groove 42 towards the hydraulic valve on the placement buffer assembly 5. The movement of the limiting block 41 causes the hydraulic valve tester 3 to move. When the two hydraulic valve testers 3 clamp the hydraulic valve on the placement buffer assembly 5, the hydraulic valve can be tested by the hydraulic valve tester 3. When the hydraulic valve test is finished, the drive motor 44 is started in reverse, and then the hydraulic valve between the two hydraulic valve testers 3 can be removed.

[0038] 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.

[0039] 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.

[0040] 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 multi-station hydraulic valve tester comprising a worktable (1), characterized in that: The upper end face of the workbench (1) is provided with a support frame (2), the upper end face of the support frame (2) is provided with a hydraulic valve tester (3), the support frame (2) is provided with a push-pull assembly (4), the push-pull assembly (4) is used for pushing and pulling two hydraulic valve testers (3) to move towards opposite or opposite directions, and the support frame (2) is provided with a placing buffer assembly (5), which is used for relieving the inertial impact force of the hydraulic valve placed on the support frame (2).

2. The multi-station hydraulic valve tester of claim 1, wherein: The push-pull assembly (4) comprises a limiting block (41), a guide groove (42), a rotating disc (43), a sliding block (46) and a sliding groove (47), the limiting block (41) is arranged on the hydraulic valve tester (3), the guide groove (42) is arranged on the support frame (2), and the limiting block (41) on the hydraulic valve tester (3) is slidably connected in the guide groove (42) on the support frame (2).

3. A multi-station hydraulic valve tester according to claim 2, wherein: The rotating disc (43) is rotatably connected to the support frame (2), the sliding block (46) is arranged on the hydraulic valve tester (3), the sliding groove (47) is arranged on the support frame (2), and the sliding block (46) on the hydraulic valve tester (3) is slidably connected in the sliding groove (47) on the support frame (2).

4. The multi-station hydraulic valve tester of claim 2, wherein: The lower portion of the rotating disc (43) is provided with a driving motor (44), the driving motor (44) is connected with the workbench (1), the output end of the driving motor (44) is connected with the rotating disc (43), and the rotating disc (43) is rotatably connected with two connecting plates (45), one end of each of the two connecting plates (45) is rotatably connected with the two limiting blocks (41) through connecting rods.

5. The multi-station hydraulic valve tester of claim 1, wherein: The placing buffer assembly (5) comprises a groove (51) arranged on the support frame (2), a buffer placing plate (52) is arranged on the inner side of the groove (51), a plurality of buffer springs (53) are fixedly arranged on the inner bottom end of the groove (51), and one end of the buffer spring (53) is connected with the buffer placing plate (52) on the inner side of the groove (51).

6. A multi-station hydraulic valve tester according to claim 5, wherein: Both ends of the buffer placing plate (52) are provided with limiting plates (55), two limiting grooves (54) are arranged on the inner side of the groove (51), and the limiting plates (55) at both ends of the buffer placing plate (52) are slidably connected in the two limiting grooves (54) on the inner side of the groove (51).

7. The multi-station hydraulic valve tester of claim 4, wherein: The cross section of the support frame (2) is in the shape of a n, and the rotating disc (43) and the driving motor (44) are located below the support frame (2).

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