Sea valve rubber testing device

Abstract

The utility model relates to the technical field of sealing element testing, in particular to a subsea valve rubber testing device. Comprising a bottom plate, a pressurizing assembly is arranged at the upper end of the bottom plate, a sliding groove is formed in the upper end of the bottom plate, a sliding block is slidably clamped in the sliding groove, the sliding block is connected with a driving device on the bottom plate, a pressure sensor is fixed to the upper end of the sliding block, and a lifting disc is elastically and slidably arranged in the vertical direction of the sliding block above the pressure sensor; the upper ring is fixedly connected with the upper end of the sliding block through a plurality of connecting rods. According to the testing device, the multiple baffles are arranged and all connected with the adjusting unit, the positions of the baffles can be adjusted through the adjusting unit, then the multiple baffles are used for positioning the rubber ring, and it can be guaranteed that the pressing disc effectively extrudes the rubber ring.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of sealing test technical field, specifically to a kind of undersea valve rubber testing device. BACKGROUND

[0002] Undersea valve refers to the collective name of all valves applied to underwater pipelines. Undersea valves are mainly used in underwater pipelines in the underwater manifold and transmission pipelines of offshore oil and gas projects. Undersea valves are inconvenient to maintain, so the sealing rubber performance of undersea valves is strictly required, and improving the requirements of undersea valve sealing rubber can improve the service life of undersea valves.

[0003] The patent file with publication number CN221198940U discloses a shock absorber sealing ring performance test simulation test bench, which comprises a test bench, a fixed frame is fixedly installed above the rear side of the test bench, and further comprises: a sealing test device, which is arranged on the test bench and located in front of the fixed frame, used for testing the sealing performance of the shock absorber sealing ring; a wear test device, which is arranged on the fixed frame and located directly above the sealing test device, used for testing the wear resistance of the shock absorber sealing ring. Further comprising a pressure sensor, which is fixedly installed on the test bench and located in front of the fixed frame, a bearing seat is fixedly installed on the pressure sensor, a sliding groove is formed in the upper part of the bearing seat, an installation groove for fixing the sealing ring is formed in the upper side wall of the sliding groove, and a gas pipe is fixedly connected to one side of the bearing seat, the other end of the gas pipe is fixedly connected to a gas pump. And the wear test device. During detection, first install the shock absorber sealing ring in the installation groove, then start the cylinder to push down the lifting plate, at this time, the lifting plate can stably push the lower connected pressure block to press on the bearing seat under the sliding guide action of the two sliding rods, so that the bearing seat is in a closed state, then start the gas pump and inject gas into the bearing seat through the gas pipe, after the gas injection is completed, close the gas pump, at this time, through the pressure sensor, the pressure can be observed whether it remains stable, if the pressure continues to drop or fluctuate, it means that there is gas leakage, so the sealing performance of the shock absorber sealing ring can be quickly detected; secondly, after completing the sealing performance detection, the speed regulating motor one can be started to drive the screw rod to rotate, at this time, the screw rod can stably drive the lifting rod to reciprocatingly rise and fall under the guide action of the two guide blocks, therefore, the lifting rod can drive the movable shaft to reciprocatingly slide up and down in the shock absorber sealing ring, at the same time, the speed regulating motor two can be started to drive the movable shaft to rotate, so that the movable shaft rotates and rubs in the shock absorber sealing ring, so that different directions and repeated friction forces can be applied to the shock absorber sealing ring by operating the movable shaft, thereby simulating the wear condition of the shock absorber sealing ring in use, finally, the wear degree of the shock absorber sealing ring is observed, so that the wear resistance of the shock absorber sealing ring can be quickly tested, which is convenient and practical. However, the rubber ring of the subsea valve is mainly extruded during sealing, therefore the device is not suitable for pressure resistance test of the rubber ring of the subsea valve.

[0004] The utility model discloses a bearing sealing ring pressure resistance ability test tool discloses a bearing sealing ring pressure resistance ability test tool in the patent file with the public number CN218512022U, including test tool table, the upper surface of test tool table is installed with the conveying chute, and the inside of conveying chute is installed with the transmission screw rod for transmission, the surface of transmission screw rod is installed with the clamping ring, the inside of clamping ring places the work position disc, and the below of work position disc is provided with the mute bottom plate, the surface median line of test tool table is fixed with the mounting seat, and the both sides of mounting seat are all fixedly installed with the fixed seat, the inside of fixed seat is installed with the lift cylinder and penetrates, and the lower extreme of lift cylinder is installed with the pressure disc. The work position disc inside clamping ring is moved to the edge of test tool table by transmission screw rod, and the bearing sealing ring is placed on the surface of work position disc, according to the width size of sealing ring, the distance between the clamping rod is adjusted by spring, then, transmission screw rod will retransmit the work position disc and be transported to the below of pressure disc, and a group of work position discs correspond to a group of pressure discs, and the lift cylinder is used to press down the pressure disc, and the pressure disc will press the sealing ring on the work position disc under the press of lift cylinder, and the work position disc will cause the pressure to the backing plate below after being pressed from above, and the pressure sensor will convert the pressure signal into electric signal and show on the display digital screen, so as to obtain the pressure value, finally, the pressure of sealing ring is applied, and the pressure resistance of sealing ring is tested. However, when the pressure disc extrudes the sealing ring, the clamping rod is tightly pressed against the sealing ring under the action of spring, and the clamping rod will limit the deformation of sealing ring, thereby leading to the inaccurate test result of the pressure resistance of sealing ring. Practical new type content

[0005] The main purpose of the utility model lies in providing a test device capable of improving the result accuracy of rubber ring pressure resistance test.

[0006] In order to realize the above-mentioned purpose, the technical scheme provided by the utility model is:

[0007] A kind of rubber testing device for subsea valve, including bottom plate, pressure assembly is arranged on the upper end of bottom plate, the upper end of bottom plate is provided with sliding slot, sliding block is slidably connected in sliding slot, sliding block is connected with drive device on bottom plate, drive device can drive sliding block to move to below pressure assembly, pressure sensor is fixed on the upper end of sliding block, lifting disc is elastically slidably arranged in the vertical direction of sliding block above pressure sensor, upper ring is concentrically arranged above lifting disc, upper ring is fixedly connected with sliding block upper end by multiple connecting rods, multiple baffles are evenly arranged on the lower end of upper ring, baffle lower end is slidably connected with the upper end of lifting disc, guide groove corresponding to baffle is formed in the lower end of upper ring, the length direction of guide groove is parallel to the radial direction of upper ring, baffle is slidably arranged in corresponding guide groove, adjusting unit corresponding to baffle is arranged on upper ring, adjusting unit is connected with baffle, and adjusting unit can adjust the position of baffle in guide groove.

[0008] Specific, the driving device includes fixed in the bottom plate one side of the stop bar, the stop bar is rotatably connected with the lead screw, the length direction of the lead screw is parallel with the length direction of the sliding slot, the stop bar is fixed with the motor, the output shaft of the motor is concentrically fixed with the lead screw, the lead screw is threadedly connected with the sliding block.

[0009] Specific, the pressurizing assembly includes a U-shaped bracket, a vertical telescopic rod is fixed in the bracket, and a pressure plate is detachably fixed and connected to the lower end of the telescopic rod.

[0010] Specific, the pressure plate is concentrically fixed with a fixed sleeve at the upper end, the fixed sleeve is internally threaded, the outer edge of the lower end of the telescopic rod is externally threaded, and the internal threads of the fixed sleeve are threadedly connected with the external threads of the lower end of the telescopic rod.

[0011] Specific, the plurality of connecting rods are evenly distributed according to the circumference of the shaft of the upper ring.

[0012] Specific, the lifting disc is fixed with a plurality of vertical light poles at the lower end, the light poles are slidably connected with the sliding blocks, blind holes are formed in the upper end of the sliding blocks, springs are installed in the blind holes, the lower end of the spring is fixedly connected with the sliding block, and the upper end of the spring is fixedly connected with the lifting disc.

[0013] Specific, the adjusting unit includes an inner plate fixed in the guide slot, a screw rod is threadedly connected to the inner plate, the screw rod penetrates the inner plate, the length direction of the screw rod is parallel with the length direction of the guide slot, and the screw rod is rotatably connected with the stop plate.

[0014] Specific, the pressure sensor is electrically connected with the display screen through the controller.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] 1、The test device is provided with a plurality of stop plates, each stop plate is connected with an adjusting unit, the position of the stop plate can be adjusted through the adjusting unit, the rubber ring is positioned by the plurality of stop plates, and the effective extrusion of the rubber ring by the pressure plate can be guaranteed.

[0017] 2、When the pressure plate extrudes the rubber ring, the lifting disc can descend, the rubber ring can descend with the lifting disc, the rubber ring is separated from the stop plate, the stop plate does not affect the deformation of the rubber ring after being separated from the rubber ring, and the result accuracy of the pressure resistance test of the rubber ring can be improved.

[0018] 3、The pressure plate can be detached from the telescopic rod, the pressure plate suitable for the rubber ring can be replaced according to the size of the rubber ring, and the rubber ring of different sizes can be tested.

[0019] 4、The pressure sensor is arranged, and the extrusion force of the pressure plate on the rubber ring is conveniently controlled. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1It is a schematic view of the testing device.

[0021] Figure 2 It is a schematic view of the lifting disc and the upper ring.

[0022] Figure 3 It is a top view of the bottom plate.

[0023] Figure 4 It is Figure 3 It is a sectional view along A-A direction.

[0024] The names of the parts in the drawings are as follows: 1, bottom plate, 2, sliding groove, 3, sliding block, 4, stop rod, 5, motor, 6, bracket, 7, telescopic rod, 8, pressure disc, 9, fixing sleeve, 10, upper ring, 11, connecting rod, 12, inner plate, 13, screw rod, 14, baffle, 15, lifting disc, 16, polished rod, 17, pressure sensor, 18, lead screw, 19, spring, 20, rubber ring. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0026] Embodiment one: refer to Figures 1-4 As shown in the figure, a rubber testing device for submarine valve, including bottom plate 1, bottom plate 1 upper end is provided with pressurizing assembly.

[0027] The pressurizing assembly includes inverted U-shaped bracket 6, the vertical telescopic rod 7 is fixed in the bracket 6, the lower end of the telescopic rod 7 is detachably fixedly connected with the pressure disc 8.

[0028] The sliding groove 2 is opened in the upper end of the bottom plate 1, the sliding block 3 is slidably connected in the sliding groove 2, the sliding block 3 is connected with the driving device on the bottom plate 1, the driving device can drive the sliding block 3 to move to the lower side of the pressurizing assembly.

[0029] The driving device includes the stop rod 4 fixed on one side of the bottom plate 1, the lead screw 18 is rotatably connected on the stop rod 4, the length direction of the lead screw 18 is parallel to the length direction of the sliding groove 2, the motor 5 is fixed on the stop rod 4, the output shaft of the motor 5 is concentrically fixedly connected with the lead screw 18, the lead screw 18 is threadedly connected with the sliding block 3.

[0030] A pressure sensor 17, which is a ring-type pressure sensor, is fixed to the upper end of the slider 3. The pressure sensor 17 is electrically connected to the display screen via a controller. A lifting plate 15 is elastically slidably mounted on the slider 3 above the pressure sensor 17 in the vertical direction. Specifically, multiple vertical rods 16 are fixed to the lower end of the lifting plate 15, and the rods 16 are slidably connected to the slider 3. A blind hole is opened at the upper end of the slider 3, and a spring 19 is installed in the blind hole. The lower end of the spring 19 is fixedly connected to the slider 3, and the upper end of the spring 19 is fixedly connected to the lifting plate 15. An upper ring 10 is concentrically arranged above the lifting plate 15. The upper ring 10 is fixedly connected to the upper end of the slider 3 via multiple connecting rods 11, which are evenly distributed around the circumference of the upper ring 10.

[0031] Multiple baffles 14 are evenly distributed around the lower circumference of the upper ring 10. The lower end of the baffles 14 slides in contact with the upper end of the lifting plate 15. A guide groove corresponding to the baffles 14 is opened at the lower end of the upper ring 10. The length direction of the guide groove is parallel to the radial direction of the upper ring 10. The baffles 14 are slidably disposed in the guide groove corresponding to them. An adjustment unit corresponding to the baffles 14 is provided on the upper ring 10. The adjustment unit is connected to the baffles 14 and can adjust the position of the baffles 14 in the guide groove.

[0032] The adjustment unit includes an inner plate 12 fixed in the guide groove, a screw 13 threadedly connected to the inner plate 12, the screw 13 passing through the inner plate 12, the length direction of the screw 13 being parallel to the length direction of the guide groove, and the screw 13 being rotatably connected to the baffle 14.

[0033] When a pressure resistance test is required on the rubber ring 20, place the rubber ring 20 on the lifting plate 15, and then rotate the screw 13 to adjust the position of the baffle 14, so that the baffle 14 contacts the outer edge of the rubber ring 20 and the rubber ring 20 is centered at the upper end of the lifting plate 15. Then start the motor 5, which drives the lead screw 18 to rotate. When the lead screw 18 rotates, the slider 3 moves in the slide groove 2. When the slider 3 is below the pressure plate 8 and concentric with the upper ring 10 and the lifting plate 15, turn off the motor 5.

[0034] The adjustable bracket 6 is positioned at the upper end of the base plate 1, and when the slider 3 contacts the rear side wall of the slide groove 2, the pressure plate 8 and the upper ring 10 are concentric.

[0035] Then the telescopic rod 7 is started, the telescopic rod 7 makes the pressure plate 8 descend, the pressure plate 8 descends and extrudes the rubber ring 20 and the lifting disc 15, the spring 19 is extruded, after the lifting disc 15 and the rubber ring 20 descend, the baffle 14 is separated from the rubber ring 20, when the lifting disc 15 contacts the pressure sensor 17, the telescopic rod 7 continues to drive the pressure plate 8 to descend, the pressure sensor 17 displays the pressure of the pressure plate 8 to the rubber ring 20 in real time, the pressure of the pressure plate 8 to the rubber ring 20 can be controlled according to the pressure value displayed on the display screen.When the pressure applied to the rubber ring 20 reaches the set pressure value, the pressure plate 8 is kept to apply the set pressure to the rubber ring 20 for a period of time.Then the telescopic rod 7 drives the pressure plate 8 to ascend, the pressure plate 8 is restored, and the rubber ring 20 is removed, if the rubber ring 20 is damaged, the pressure resistance of the rubber ring 20 is not enough, if the rubber ring 20 is not damaged, the rubber ring 20 is sealed and tested, and the rubber ring 20 is qualified after the sealing test, and the pressure resistance of the rubber ring 20 is enough.

[0036] Example two: on the basis of example one, referring to Figure 1 As shown, the upper end of the pressure plate 8 is fixed concentrically with a fixed sleeve 9, the fixed sleeve 9 is internally threaded, the outer edge of the lower end of the telescopic rod 7 is externally threaded, and the internal thread of the fixed sleeve 9 is threadedly connected with the external thread of the lower end of the telescopic rod 7.

[0037] The pressure plate 8 can be detached from the telescopic rod 7, the pressure plate 8 suitable for the rubber ring 20 can be replaced according to the size of the rubber ring 20, and rubber rings 20 of different sizes can be tested.

[0038] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application, any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A subsea valve rubber testing device comprising a base plate (1) provided with a pressurizing assembly at its upper end, characterized in that, The bottom plate (1) is provided with a sliding groove (2) at the upper end, and a sliding block (3) is connected to the sliding groove (2) in a clamping manner. The sliding block (3) is connected with a driving device on the bottom plate (1), and the driving device can drive the sliding block (3) to move below the pressing assembly. A pressure sensor (17) is fixed to the upper end of the sliding block (3). A lifting disc (15) is arranged on the sliding block (3) in an elastic sliding manner in the vertical direction. An upper ring (10) is arranged concentrically above the lifting disc (15). The upper ring (10) is fixedly connected to the upper end of the sliding block (3) through a plurality of connecting rods (11). A plurality of baffles (14) are arranged on the lower end of the upper ring (10) in a uniformly distributed manner. The lower end of the baffle (14) is in sliding contact with the upper end of the lifting disc (15). The lower end of the upper ring (10) is provided with a guide groove corresponding to the baffle (14). The length direction of the guide groove is parallel to the radial direction of the upper ring (10). The baffle (14) is arranged in the corresponding guide groove in a sliding manner. The upper ring (10) is provided with an adjusting unit corresponding to the baffle (14). The adjusting unit is connected with the baffle (14). The adjusting unit can adjust the position of the baffle (14) in the guide groove.

2. A subsea valve rubber testing device according to claim 1, wherein, The driving device comprises a stop rod (4) fixed on one side of the bottom plate (1). A lead screw (18) is rotatably connected to the stop rod (4). The length direction of the lead screw (18) is parallel to the length direction of the sliding groove (2). A motor (5) is fixed on the stop rod (4). The output shaft of the motor (5) is fixedly connected with the lead screw (18) in a concentric manner. The lead screw (18) is threadedly connected with the sliding block (3).

3. The subsea valve rubber testing device of claim 1, wherein, The pressing assembly comprises an inverted U-shaped support (6). A vertical telescopic rod (7) is fixedly arranged in the support (6). A pressure disc (8) is detachably fixedly connected to the lower end of the telescopic rod (7).

4. The rubber test device for subsea valves of claim 3, wherein, A fixed sleeve (9) is fixedly arranged on the upper end of the pressure disc (8). An internal thread is formed in the fixed sleeve (9). An external thread is formed on the outer edge of the lower end of the telescopic rod (7). The internal thread of the fixed sleeve (9) is threadedly connected with the external thread of the lower end of the telescopic rod (7).

5. The subsea valve rubber testing device of claim 1, wherein, The plurality of connecting rods (11) are arranged in a uniformly distributed manner according to the circumferences of the axes of the upper ring (10).

6. The subsea valve rubber testing device of claim 1, wherein, A plurality of vertical light rods (16) are fixedly arranged on the lower end of the lifting disc (15). The light rods (16) are slidably connected with the sliding block (3). A blind hole is formed in the upper end of the sliding block (3). A spring (19) is arranged in the blind hole. The lower end of the spring (19) is fixedly connected with the sliding block (3). The upper end of the spring (19) is fixedly connected with the lifting disc (15).

7. The subsea valve rubber testing device of claim 1, wherein, The adjusting unit comprises an inner plate (12) fixedly arranged in the guide groove. A screw rod (13) is threadedly connected with the inner plate (12). The screw rod (13) penetrates through the inner plate (12). The length direction of the screw rod (13) is parallel to the length direction of the guide groove. The screw rod (13) is rotatably connected with the baffle (14).

8. The subsea valve rubber testing device of claim 1, wherein, The pressure sensor (17) is electrically connected with a display screen through a controller.

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