Testing device capable of testing sealing of multiple types of water gates and use method thereof

Abstract

The invention provides a testing device capable of testing multiple types of water gate sealing and a using method thereof.The device comprises a bottom frame and a turnover frame base, bearing seats and a support are arranged on the two sides of the turnover frame base, a movable frame is rotationally connected between the two bearing seats, the support is provided with a power device, and a platform bottom plate is arranged at the bottom of the movable frame; a main pressure oil cylinder body is arranged at the top of the platform bottom plate, a pressure head clamping ring is connected to a main pressure oil cylinder rod of the main pressure oil cylinder body, the lower end of the pressure head clamping ring is connected with the platform upper plate, and the platform upper plate is used for moving towards the platform bottom plate under the pushing action of the main pressure oil cylinder body so as to apply pressure to the to-be-tested sealing element placed on the platform bottom plate and test the sealing performance. According to the invention, the sealing performance test is closer to the real working state by simulating swing, meanwhile, a worker can observe whether the sealing performance of the sealing element is good or not, and if the sealing performance of the sealing element is not qualified, the worker can observe whether the sealing ring is reliable or not under a certain application working condition through the leakage amount of the water leakage opening.

Description

Technical Field

[0001] The invention belongs to the technical field of water gate seal testing, and relates to a testing device capable of testing various types of water gate seals and a use method thereof. Background Art

[0002] Sluice gates are an important type of water conservancy project, mainly used to control flow and adjust water levels. Sluice gates can block floods, tides or raise upstream water levels by closing the gates to meet the needs of irrigation, power generation, shipping, aquaculture, industry and domestic water. On the contrary, opening the gates can discharge floods, waterlogging, abandoned water or wastewater, and can also adjust the flow according to the needs of downstream.

[0003] The seal is one of the most important parts of the gate. The important function of the seal is to seal the water, that is, to block the gap between the gate body and the gate hole after the gate is closed to prevent water leakage from the gate hole. If the water seal is not tight, the reservoir will have leakage losses, resulting in waste of water resources, thereby reducing the power generation of the power station and the irrigation volume of the reservoir during the dry season. If the water seal of the gate used during the construction period is not effective, it will affect the construction progress and quality. Water leakage under low temperature conditions will cause the gate to freeze, resulting in inaccurate closing and closing operations, affecting the safe operation of the project.

[0004] For high-head gates, the water seal device is particularly important, because if there is a gap between the water seal water-stop element and the water-stop surface of the gate body, or the water seal structure is defective, the gate may vibrate violently after closing or during operation; water leakage from the top of the gate during opening and closing will also affect the work safety of the hoist operator; and it will cause cavitation, wear and even damage to the intermediate gate and embedded parts, thereby threatening the safety of the entire hydraulic structure.

[0005] In addition, the higher the water head, the greater the water leakage. It can be seen that the high-pressure gate water seal plays an important economic and safety role in the gate and even the entire hydraulic structure. Therefore, it is sometimes necessary to test the seal ring. In the existing testing equipment, when testing the valve sealing, if there is a workpiece with poor valve sealing, it is difficult for the tester to directly observe the specific leakage position of the valve workpiece. Summary of the invention

[0006] The purpose of the present invention is to address the defects of the prior art and provide a testing device and a method of using the same that can test various types of sluice seals. The device and method can simulate the sealing properties under different compression amounts or pressures and can test different types of sluice seals.

[0007] A first aspect of the present invention provides a testing device capable of testing the seals of various types of sluice gates, comprising: A base frame and a flip frame seat, bearing seats and supports are arranged on both sides of the flip frame seat, a movable frame is rotatably connected between the two bearing seats, the middle part of the movable frame is a hollow structure, the support is provided with a power device, and the power device is used to drive the movable frame to swing; a platform bottom plate is arranged at the bottom of the movable frame, and a main pressure oil cylinder body is arranged on the top, a pressure head clamping ring is connected to the main pressure oil cylinder rod of the main pressure oil cylinder body, and the lower end of the pressure head clamping ring is connected to the platform upper plate, and a guide column is also connected to the top of the platform upper plate, and the guide column is movably connected to the movable frame through a guide column sleeve, and the platform upper plate is used to move toward the platform bottom plate under the pushing action of the main pressure oil cylinder body, so as to pressurize the seal to be tested placed on the platform bottom plate and test the sealing performance, a drain port, a first water leakage port and a water supply port are arranged on the platform bottom plate, and an exhaust port, a second water leakage port and a pressure measuring port are arranged on the platform upper plate.

[0008] Preferably, the power device includes a cycloidal motor, a reduction hydraulic motor and an elastic sleeve pin coupling, the cycloidal motor is used to output power, the reduction hydraulic motor is used to reduce speed and increase torque of the power output by the cycloidal motor, and the elastic sleeve pin coupling connects the reduction hydraulic motor to the movable frame.

[0009] Preferably, a locking device is further included, and the locking device is used to lock the movable frame so that the movable frame cannot swing.

[0010] Preferably, the locking device includes a locking cylinder rod end of a locking cylinder body arranged on a flip frame and connected to a locking pin, and a locking hole for matching with the locking pin is opened on the movable frame, and the locking cylinder rod is used to push or retract the locking pin to make the locking pin engage or disengage with the locking hole, so that the movable frame is in a rotatable or non-rotatable state.

[0011] Preferably, locking devices are provided on both sides of the movable frame, and the locking pins of the two locking devices are not in the same straight line direction.

[0012] A second aspect of the present invention provides a method for using a testing device capable of testing the seals of various types of sluice gates as described in any one of the above items, comprising the following steps: Place the seal to be tested on the platform bottom plate; The locking cylinder rod of the locking device retracts the locking pin, so that the locking pin is disengaged from the locking hole, so that the movable frame is in a rotatable state; The hydraulic oil in the main pressure oil cylinder body pushes the main pressure oil cylinder rod, and the main pressure oil cylinder rod pushes the platform upper plate to move downward. After the compression amount of the seal reaches the set parameter value, the main pressure oil cylinder body stops moving and maintains pressure; Fill water into the water supply port, and stop filling water when the preset water volume is reached; The cycloid motor of the power unit drives the reduction hydraulic motor, which drives the movable frame to swing through the coupling; After the test is completed, the locking cylinder rod of the locking device pushes the locking pin, so that the locking pin cooperates with the locking hole, so that the movable frame is in a non-rotatable state.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a testing device capable of testing various types of sluice seals and a method of using the same. The device simulates swinging to make the sealing performance test closer to the actual working state, and enables the staff to observe whether the sealing performance of the seal is good. If the sealing performance of the seal is unqualified, the staff can observe whether the sealing ring is reliable under certain application conditions by the leakage amount of the leaking port. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the present invention.

[0015] Figure 2 It is a schematic diagram of the test state structure of the present invention.

[0016] Figure 3 It is a schematic diagram of the structure of the power device in the present invention.

[0017] Figure 4 It is a schematic diagram of the structure of the hydraulic drive device in the present invention.

[0018] Figure 5 It is a schematic diagram of the structure of the locking device in the present invention.

[0019] Figure 6 It is an axial cross-sectional view of the locking device in the present invention.

[0020] Figure 7 It is a schematic diagram of the side water seal test structure in the present invention.

[0021] Figure 8 for Figure 7 Schematic diagram of the structure of the water seal being tested.

[0022] Fig. 9 It is a schematic diagram of the bottom water seal test structure in the present invention.

[0023] Fig.10 for Fig. 9 Schematic diagram of the structure of the bottom water seal being tested.

[0024] In the figure: 1-guide column sleeve, 2-main pressure cylinder body, 3-movable frame, 4-main pressure cylinder rod, 5-pressure head clamp, 6-platform upper plate, 7-bearing seat, 8-cycloidal motor, 9-reduction hydraulic motor, 10-elastic sleeve pin coupling, 11-support, 12-locking device, 13-turning frame, 14-tested seal, 15-platform bottom plate, 16-bottom frame, 17-guide column sleeve, 18-locking pin, 19-locking cylinder rod, 20-locking cylinder body, 21-drain port, 22-first water leakage port, 23 water supply port, 24-exhaust port, 25-second water leakage port, 26-pressure measuring port. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the preferred implementation scheme of the present invention is described below in conjunction with specific embodiments. However, it should be understood that the drawings are only used for exemplary descriptions and cannot be understood as limitations on this patent; in order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted; the positional relationship described in the drawings is only used for exemplary descriptions and cannot be understood as limitations on this patent.

[0026] As an embodiment of the present invention, see Figure 1-Figure 6 This embodiment provides a testing device capable of testing the seals of various types of sluices, including: The bottom frame 16 and the flip frame seat 13, the two sides of the flip frame seat 13 are provided with bearing seats 7 and supports 11, the two bearing seats 7 are rotatably connected to the movable frame 3, the middle part of the movable frame 3 is a hollow structure, the support 11 is provided with a power device, and the power device is used to drive the movable frame 3 to swing; the bottom of the movable frame 3 is provided with a platform bottom plate 15, and the top is provided with a main pressure oil cylinder body 2, the main pressure oil cylinder rod 4 of the main pressure oil cylinder body 2 is connected to the pressure head clamp ring 5, the lower end of the pressure head clamp ring 5 is connected to the platform upper plate 6, and the top of the platform upper plate 6 is also connected to the guide column 1, such as Figure 4 As shown, the guide column 1 is movably connected to the movable frame 3 through a guide column sleeve 17, and the platform upper plate 6 is used to move toward the platform bottom plate 15 under the pushing action of the main pressure oil cylinder body 2, so as to apply pressure to the seal to be tested placed on the platform bottom plate 15 and test the sealing performance. The platform bottom plate 15 is provided with a drain port 21, a first water leakage port 22 and a water supply port 23, and the platform upper plate 6 is provided with an exhaust port 24, a second water leakage port 25 and a pressure measuring port 26.

[0027] Specifically, the power device includes a cycloidal motor 8, a reduction hydraulic motor 9 and an elastic sleeve pin coupling 10. The cycloidal motor 8 is used to output power, the reduction hydraulic motor 9 is used to reduce the power output by the cycloidal motor 8 and increase the torque, and the elastic sleeve pin coupling 10 connects the reduction hydraulic motor 9 to the movable frame 3.

[0028] In some preferred embodiments, a locking device 12 is further included, and the locking device 12 is used to lock the movable frame 3 so that the movable frame 3 cannot swing.

[0029] As another preferred embodiment of the present invention, Figure 5 and Figure 6 As shown, the locking device 12 includes a locking cylinder body 20 arranged on the flip frame 13, the end of the locking cylinder rod 19 of the locking cylinder body 20 is connected to the locking pin 18, and a locking hole for matching with the locking pin 18 is opened on the movable frame 3. The locking cylinder rod 19 is used to push or retract the locking pin 18, so that the locking pin 18 is matched with or disengaged from the locking hole, so that the movable frame 3 is in a rotatable or non-rotatable state.

[0030] In some other preferred embodiments, locking devices 12 are provided on both sides of the movable frame 3, and the locking pins 18 of the two locking devices 12 are not in the same straight line direction.

[0031] When the test device is idle, the hydraulic oil in the locking cylinder 20 of the locking device 12 pushes the locking cylinder rod 19. A locking pin 18 is provided in front of the locking cylinder rod 19. The locking pin 18 is inserted into the movable frame 3. Since there are one locking device on each side and these two sets of locking devices 12 are not collinear, the movable frame cannot rotate or move, and the test device is locked and fixed.

[0032] As another preferred embodiment of the present invention, this embodiment provides a method for using the above-mentioned testing device capable of testing the seals of various types of sluices, comprising the following steps: Place the seal to be tested on the platform bottom plate 15; The locking cylinder rod 19 of the locking device 12 retracts the locking pin 18, so that the locking pin 18 is disengaged from the locking hole, so that the movable frame 3 is in a rotatable state; The hydraulic oil in the main pressure oil cylinder body 2 pushes the main pressure oil cylinder rod 4, and the main pressure oil cylinder rod 4 pushes the platform upper plate 6 to move downward. After the compression amount of the seal reaches the set parameter value, the main pressure oil cylinder body 2 stops moving and maintains pressure; Fill water into the water supply port 23, and stop filling water when the preset water volume is reached; The cycloid motor 8 of the power device drives the reduction hydraulic motor 9, which drives the movable frame 3 to swing through the coupling 10; After the test is completed, the locking cylinder rod 19 of the locking device 12 pushes the locking pin 18 so that the locking pin 18 cooperates with the locking hole, so that the movable frame 3 is in a non-rotatable state.

[0033] Specifically, when the seal to be tested is a side water seal (P-type seal), Figure 7As shown, when the seal fails, the leaked water flows out through the first leaking port 22 on the platform bottom plate 15. By observing the water flow from the leaking port 22, the pressure retention and durability of the product can be evaluated to verify the reliability or life evaluation of the product. After the test, the water is discharged from the drain port 21, and the exhaust port 24 is exhausted. The hydraulic oil in the main pressure oil cylinder body 2 of the hydraulic drive device is retracted to the main pressure oil cylinder rod 4, and the main pressure oil cylinder rod 4 drives the platform upper plate 6 to move upward, and other types of seals are replaced and tested for other types of seals.

[0034] When the seal to be tested is a bottom water seal, such as Fig. 9 As shown, when the seal fails, the leaked water flows out through the leaking port 25 on the upper plate 6 of the platform. By observing the water flow from the second leaking port 25, the pressure retention and durability of the product can be evaluated to verify the reliability or life evaluation of the product. After the test, the water is discharged from the drain port 21, and the exhaust port 24 is exhausted. The hydraulic oil in the main pressure oil cylinder body 2 of the hydraulic drive device is retracted to the main pressure oil cylinder rod 4, and the main pressure oil cylinder rod 4 drives the upper plate 6 of the platform to move upward and return to the initial position of the test device, completing the test of the seal.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A testing device capable of testing the seals of various types of sluice gates, characterized in that: include: A base frame (16) and a flip frame seat (13), wherein bearing seats (7) and supports (11) are arranged on both sides of the flip frame seat (13), and the two bearing seats (7) are rotatably connected to a movable frame (3), wherein the middle of the movable frame (3) is a hollow structure, and the support (11) is provided with a power device, and the power device is used to drive the movable frame (3) to swing; a platform bottom plate (15) is arranged at the bottom of the movable frame (3), and a main pressure oil cylinder body (2) is arranged at the top, and a pressure head clamp ring (5) is connected to the main pressure oil cylinder rod (4) of the main pressure oil cylinder body (2), and the lower end of the pressure head clamp ring (5) is connected to the main pressure oil cylinder rod (4) of the main pressure oil cylinder body (2). The platform upper plate (6) is connected, and a guide column (1) is also connected to the top of the platform upper plate (6). The guide column (1) is movably connected to the movable frame (3) through a guide column sleeve (17). The platform upper plate (6) is used to move toward the platform bottom plate (15) under the pushing action of the main pressure oil cylinder body (2) to apply pressure to the sealing member to be tested placed on the platform bottom plate (15) and test the sealing performance. The platform bottom plate (15) is provided with a drainage port (21), a first water leakage port (22) and a water supply port (23), and the platform upper plate (6) is provided with an exhaust port (24), a second water leakage port (25) and a pressure measuring port (26).

2. A testing device capable of testing the seals of various types of sluices according to claim 1, characterized in that: The power device comprises a cycloid motor (8), a reduction hydraulic motor (9) and an elastic sleeve pin coupling (10); the cycloid motor (8) is used to output power; the reduction hydraulic motor (9) is used to reduce power output by the cycloid motor (8) and increase torque; and the elastic sleeve pin coupling (10) connects the reduction hydraulic motor (9) to the movable frame (3).

3. A testing device capable of testing the seals of various types of sluice gates according to claim 1, characterized in that: It also includes a locking device (12), which is used to lock the movable frame (3) so that the movable frame (3) cannot swing.

4. A testing device capable of testing various types of sluice seals according to claim 3, characterized in that: The locking device (12) comprises a locking cylinder body (20) arranged on the flip frame (13); the end of a locking cylinder rod (19) of the locking cylinder body (20) is connected to a locking pin (18); a locking hole for matching with the locking pin (18) is provided on the movable frame (3); the locking cylinder rod (19) is used to push or retract the locking pin (18) so that the locking pin (18) is matched with or disengaged from the locking hole, so that the movable frame (3) is in a rotatable or non-rotatable state.

5. A testing device capable of testing the seals of various types of sluice gates according to claim 4, characterized in that: Locking devices (12) are provided on both sides of the movable frame (3), and the locking pins (18) of the two locking devices (12) are not located in the same linear direction.

6. A method for using a testing device capable of testing seals of various types of sluice gates as claimed in claim 4 or 5, characterized in that: The steps include: Place the seal to be tested on the platform bottom plate (15); The locking cylinder rod (19) of the locking device (12) retracts the locking pin (18) to disengage the locking pin (18) from the locking hole, so that the movable frame (3) is in a rotatable state; The hydraulic oil in the main pressure oil cylinder body (2) pushes the main pressure oil cylinder rod (4), and the main pressure oil cylinder rod (4) pushes the platform upper plate (6) to move downward. After the compression amount of the sealing element reaches the set parameter value, the main pressure oil cylinder body (2) stops moving and maintains pressure. Filling water into the water supply port (23), and stopping the water filling when a predetermined water volume is reached; The cycloid motor (8) of the power device drives the reduction hydraulic motor (9), which drives the movable frame (3) to swing through the coupling (10); After the test is completed, the locking cylinder rod (19) of the locking device (12) pushes the locking pin (18) so that the locking pin (18) cooperates with the locking hole, so that the movable frame (3) is in a non-rotatable state.

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