CN113188888A - Detection equipment and detection method for detecting pressure resistance of compensator - Google Patents

Abstract

The application relates to a detection device and a detection method for detecting the pressure resistance of a compensator, and relates to the field of pressure pipeline element test devices. The compensator comprises a rack, a lower pressing plate, an upper pressing plate and a pressurizing assembly, wherein the upper pressing plate is placed above the lower pressing plate, one side of the lower pressing plate, which faces the upper pressing plate, is detachably connected with a lower fixing piece, the top surface of the lower fixing piece is fixedly provided with a plurality of lower positioning rings which are concentrically arranged, and the lower positioning rings are used for sealing the bottom end of the compensator; one side of the upper pressure plate, which faces the lower pressure plate, is detachably connected with an upper fixing piece, one side of the upper fixing piece, which faces the lower fixing piece, is fixedly connected with a plurality of upper positioning rings which are concentrically arranged, and the upper positioning rings are used for sealing the top end of the compensator; a top plate is arranged at the top of the rack, a first hydraulic cylinder is arranged on the top plate, and a shell of the first hydraulic cylinder is fixedly connected with the top plate; the pressurizing assembly is used for injecting water into a space enclosed by the lower pressing plate, the upper pressing plate and the compensator and pressurizing. The application has the effect of improving the applicability of the detection equipment for detecting compensators with different specifications.

Description

Detection equipment and detection method for detecting pressure resistance of compensator

Technical Field

The application relates to the field of pressure pipeline element testing devices, in particular to a detection device and a detection method for detecting the pressure resistance of a compensator.

Background

In the operation process of the heat distribution pipeline, the length of the pipeline is changed due to the fact that the pipeline is heated, so that the compensator is arranged between the heat distribution pipelines to relieve stress of the heat distribution pipeline, fluid in the heat distribution pipeline usually has pressure, and the compensator needs to be subjected to pressure resistance detection after being manufactured.

In the related art, chinese utility model patent with the publication number CN204027789U discloses a pressure-resistant and friction-force-testing integrated device for a sleeve compensator, which comprises a base and a pressure-testing pump, wherein a hydraulic up-and-down driving device and a clamping device are fixedly arranged on the base, a lower blind plate is fixedly arranged at the top of the hydraulic up-and-down driving device, a water filling port is arranged on the lower blind plate, an upper blind plate is arranged above the lower blind plate, and an exhaust port is arranged on the upper blind plate; the clamping device comprises an upright post and a cushion block, the bottom end of the upright post is fixed on the base, the cushion block is fixedly arranged at the top end of the upright post, the cushion block is fixedly connected with the upper blind plate, the sleeve compensator is arranged between the upper blind plate and the lower blind plate and is fixedly connected with the upper blind plate and the lower blind plate, the outer edge of the sleeve compensator is provided with a proximity switch, and the proximity switch and the pressure test pump are in interlocking control; the pressure test pump is connected with a water injection port and a hydraulic up-and-down driving device on the lower blind plate through corresponding pipelines and valves.

Aiming at the related technology, the compensator is placed between the upper blind plate and the lower blind plate, the tested sleeve compensator is extruded by the hydraulic up-down driving device, so that the tested sleeve compensator just starts to move, and the pressure resistance of the compensator is tested.

Disclosure of Invention

In order to improve the applicability of the detection equipment and detect compensators with different specifications, the application provides the detection equipment and the detection method for detecting the pressure resistance of the compensator.

In a first aspect, the present application provides a detection apparatus for detecting a pressure resistance of a compensator, which adopts the following technical scheme:

a detection device for detecting the pressure resistance of a compensator comprises a rack, a lower pressing plate, an upper pressing plate and a pressurizing assembly, wherein the lower pressing plate and the upper pressing plate are placed on the rack, and the upper pressing plate is placed above the lower pressing plate;

one side of the lower pressing plate, which faces the upper pressing plate, is detachably connected with a lower fixing piece, the top surface of the lower fixing piece is fixedly provided with a plurality of lower positioning rings which are concentrically arranged, the outer sides of the lower positioning rings are detachably connected with lower sealing rings, and the lower positioning rings are used for sealing the bottom end of the compensator;

an upper fixing piece is detachably connected to one side, facing the lower pressing plate, of the upper pressing plate, a plurality of upper positioning rings which are concentrically arranged are fixedly connected to one side, facing the lower fixing piece, of the upper fixing piece, an upper sealing ring is detachably connected to the outer sides of the upper positioning rings, and the upper positioning rings are used for sealing the top end of the compensator;

a top plate is arranged at the top of the rack, a first hydraulic cylinder is arranged on the top plate and is perpendicular to the top plate, a shell of the first hydraulic cylinder is fixedly connected with the top plate, and a piston rod of the first hydraulic cylinder can move towards one side of the upper pressing plate;

and the pressurizing assembly is used for injecting water into a space enclosed by the lower pressing plate, the upper pressing plate and the compensator and pressurizing.

By adopting the technical scheme, the upper pressure plate is separated from the lower pressure plate, the lower positioning ring and the upper positioning ring which are attached to the radius of the sleeve compensator to be detected are selected, the bottom end of the compensator is placed on the lower fixing piece, the compensator is sleeved on the periphery of the lower positioning ring, the lower sealing ring is tightly attached to the inner wall of the bottom end of the compensator, the upper fixing piece connected with the upper pressure plate is placed at the top of the compensator, the top end of the compensator is sleeved outside the upper positioning ring, the upper sealing ring is tightly attached to the inner wall of the top end of the compensator, the first hydraulic cylinder is started, the piston rod of the first hydraulic cylinder is tightly abutted against the top of the upper pressure plate, the compensator is fixed, the compensator is pressurized through the pressurizing assembly, the sealing performance of the compensator is detected, when the compensators with different radii are detected, the upper positioning ring and the lower positioning ring with different radii are selected, and the pressure resistance detection of the compensators with different radii is convenient, the applicability of detecting compensators with different specifications is improved.

Optionally, the lower pressing plate and the upper pressing plate are both arranged in a hollow manner, a first water through hole for communicating with an inner cavity of the compensator is formed in the top surface of the lower pressing plate, a water inlet pipe for injecting water into the compensator is fixedly connected to the side wall of the lower pressing plate, the water inlet pipe is communicated with the inner cavity of the lower pressing plate, and a first water stop valve is connected to the water inlet pipe;

the bottom wall of the upper pressure plate is provided with a second water through hole communicated with the inner cavity of the compensator, the side wall of the upper pressure plate is fixedly connected with a pressurizing pipe used for pressurizing the compensator, the pressurizing pipe is communicated with the inner cavity of the upper pressure plate, and the pressurizing pipe is connected with a second water stop valve;

the upper pressure plate is also connected with an exhaust pipe, the exhaust pipe is communicated with the inner cavity of the upper pressure plate, and the exhaust pipe is connected with an exhaust valve;

the pressurizing assembly comprises a water storage tank, a water outlet pipe, a water outlet pump, a water outlet valve, a water return pipe, a water return pump, a water return valve, a water passing pipe and a pressurizing water pump, one end of the water outlet pipe is communicated with the bottom of the water storage tank, and the water outlet pump and the water outlet valve are both fixedly connected to the water outlet pipe; one end of the water return pipe faces the top of the water storage tank, and the water return pump and the water return valve are fixedly connected to the water return pipe; the water outlet pipe, the water return pipe and the water passing pipe are communicated, one end, far away from the water return pipe, of the water passing pipe is detachably connected with the water inlet pipe, and the pressurizing water pump is used for injecting high-pressure water into the inner cavity of the compensator through the pressurizing pipe.

By adopting the technical scheme, the water outlet valve is opened, the water return valve is closed, the water outlet pipe is communicated with the water pipe, the first water stop valve is opened, the water outlet pump is opened, the exhaust valve is opened, and the water outlet pump enables water in the water storage tank to enter the inner cavity of the compensator through the water inlet pipe; after water injection is completed in the compensator, closing the first water stop valve and the exhaust valve, opening the second water stop valve, starting the pressurizing water pump, stopping water injection when the water pressure in the compensator reaches a set value, closing the second water stop valve, and stably keeping the pressure in the compensator for a certain time; after the pressure resistance test of the compensator is completed, the first water stop valve is opened, the exhaust valve is opened, the water outlet valve is closed, the water return valve is opened, the water return pipe is communicated with the water passing pipe, the water return pump is opened, water in the inner cavity of the compensator flows back to the water storage tank through the water inlet pipe, the water passing pipe and the water return pipe, the pressure resistance test of the compensators with different specifications is conveniently carried out, and the applicability of detection of the compensators with different specifications is improved.

Optionally, a first positioning ring is fixedly connected to the top of the lower pressure plate, the first positioning ring and the lower positioning ring are coaxial, the radius of the first positioning ring is larger than that of the lower positioning ring, and a first sealing ring is detachably connected to the outer side of the first positioning ring; the bottom of the upper pressure plate is fixedly connected with a second positioning ring which has the same structure as the first positioning ring, and the outer wall of the second positioning ring is detachably connected with a second sealing ring.

By adopting the technical scheme, when the compensator with larger size needs to be detected, the bottom end of the compensator is placed on the periphery of the first positioning ring, the first sealing ring is attached to the inner wall of the bottom end of the compensator, and the bottom end of the compensator is sealed; the compensator top is placed in the week side of second holding ring, and the laminating of second sealing washer and compensator top inner wall, and the top of compensator is sealed, conveniently detects the great compensator of size, improves check out test set's suitability.

Optionally, a guide rail is fixedly connected to one side of the frame, a pulley is placed on the surface of the guide rail, the pulley can slide along the guide rail, a driving part used for pushing the pulley to move is arranged between the frame and the pulley, the lower pressing plate can be placed at the top of the pulley, a positioning plate used for positioning the lower pressing plate is fixedly connected to the top of the pulley, a positioning groove is formed in the positioning plate, the lower pressing plate is provided with a positioning column, and when the lower pressing plate and the top of the pulley are attached to each other, the positioning column extends into the positioning groove.

Through adopting above-mentioned technical scheme, during the pressure resistance of heavy compensator of test, place holding down plate and top board on the coaster, drive unit drives the coaster and slides on the guide rail, and when top board and holding down plate slided on the coaster, the coaster breaks away from the frame completely, makes things convenient for the separation of top board and holding down plate, is convenient for place the compensator between top board and holding down plate, improves the efficiency of placing the compensator.

Optionally, the drive assembly includes the action wheel, follows driving wheel, chain and drive action wheel pivoted driving piece, the action wheel is located the frame and keeps away from one side of guide rail, action wheel and frame rotate to be connected, be located the guide rail from the driving wheel and keep away from one side of frame, the chain is around locating action wheel and the week side from the driving wheel, coaster and chain fixed connection.

Through adopting above-mentioned technical scheme, the output shaft of driving piece drives the action wheel and rotates, and the action wheel drives the chain and rotates, and the chain drives the coaster and slides on the guide rail, improves the convenience that the coaster drove top board, compensator and holding down plate motion, makes things convenient for the installation and the dismantlement of compensator.

Optionally, a positioning frame is arranged between the driven wheel and the rack, the positioning frame is located on one side, away from the driving wheel, of the rack, the positioning frame is connected with the rack in a sliding mode, a long circular hole is formed in the positioning frame and penetrates through the positioning frame, a fixing bolt fixedly connected with the rack penetrates through the long circular hole, the positioning frame is connected with the driven wheel in a rotating mode, a clamping plate is arranged on one side, close to the positioning frame, of the rack, a threaded hole is formed in the surface of the clamping plate, the axis of the threaded hole is parallel to the length direction of the guide rail, an adjusting bolt is connected in the threaded hole in a threaded mode, and one side, close to the positioning frame, of the adjusting bolt is clamped with the positioning frame.

Through adopting above-mentioned technical scheme, support tight locating rack through adjusting bolt, make things convenient for the chain to keep the tensioning state, reduce the gliding possibility of taking place among the chain motion process, improve the reliability that the chain drove the coaster motion.

Optionally, be provided with two braking parts on the guide rail, one of them braking part is located the frame and is close to one side of action wheel, another braking part is located the guide rail and is close to one side from the driving wheel, braking part includes stopper, controller and limit switch, stopper fixed connection is in the guide rail tip, limit switch fixed connection is in the tip of guide rail, limit switch and controller electricity are connected, controller and driving piece electricity are connected.

By adopting the technical scheme, when the driving piece drives the pulley to slide on the guide rail, and the pulley is attached to the limit switch, the limit switch transmits a signal to the controller, the controller controls the driving piece to stop rotating, and the pulley stops moving; when the limit switch or the controller breaks down, the limiting blocks on the guide rail brake the pulley, the possibility that the pulley is separated from the guide rail is reduced, and the safety in the pressure resistance test process is improved.

Optionally, the frame bottom is provided with a plurality of second pneumatic cylinders that are used for separating holding down plate and coaster, the axis of second pneumatic cylinder is on a parallel with the axis of holding ring down, and is a plurality of the second pneumatic cylinder sets up in week side of coaster, and is a plurality of the casing of second pneumatic cylinder all with frame fixed connection, the piston rod of second pneumatic cylinder can move towards holding down plate one side.

Through adopting above-mentioned technical scheme, the piston rod of second pneumatic cylinder promotes holding down plate and coaster separation, and after the coaster left the frame, the second pneumatic cylinder descends, and holding down plate and frame laminating make things convenient for first pneumatic cylinder to fix the compensator, improve the security that detects the withstand voltage test of compensator.

Optionally, the frame includes bottom plate and stand, bottom plate and stand bottom fixed connection, the stand top sets up a plurality of regulation holes, and is a plurality of the direction of height of the axis perpendicular to stand of regulation hole is a plurality of the direction of height interval along the stand of regulation hole sets up, be provided with the locating hole on the roof, locating hole and regulation downthehole interpolation have the fixed pin.

Through adopting above-mentioned technical scheme, when testing different length compensators, change the fixed regulation hole of roof and frame, conveniently change the interval between roof and the frame, make things convenient for first pneumatic cylinder to fix the compensator of different length, improve the suitability that detects the compensator of different length.

In a second aspect, the present application provides a method for detecting a voltage resistance of a compensator, which adopts the following technical scheme:

a detection method for detecting the pressure resistance of a compensator adopts the compensator detection equipment for detection, and comprises the following steps;

separating an upper pressure plate from a lower pressure plate, placing a compensator on the lower pressure plate, sleeving the bottom end of the compensator on the periphery of a lower positioning ring, placing the upper pressure plate on the top end of the compensator, and sleeving the top end of the compensator on the periphery of the upper positioning ring;

step two, a first hydraulic cylinder is started, a piston rod of the first hydraulic cylinder moves towards an upper pressure plate, the piston rod of the first hydraulic cylinder is tightly propped against the top of the upper pressure plate, and a compensator is fixed between the upper pressure plate and a lower pressure plate;

step three, starting a pressurizing assembly, and injecting water and pressurizing the interior of the compensator by the pressurizing assembly;

and step four, after the water injection and pressurization in the compensator are finished, maintaining the pressure in the compensator, detecting whether the compensator leaks water or not, if the compensator leaks water, indicating that the pressure resistance of the compensator is unqualified, and if the compensator does not leak water, indicating that the pressure resistance of the compensator is qualified.

Through adopting above-mentioned technical scheme, the compensator is placed between the last holding ring of equidimension not and lower holding ring, improves the fixed efficiency of compensator, conveniently detects the suitability of different specification compensator voltage resistance ability.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the lower fixing piece is fixedly connected with a plurality of lower positioning rings which are concentrically arranged, the bottom surface of the upper fixing piece is provided with an upper positioning ring matched with the lower positioning rings, compensators with different specifications are placed between the corresponding lower positioning rings and the corresponding upper positioning rings, the pressure resistance of the compensators with different diameters can be detected, and the applicability of the detection equipment is improved;

2. a guide rail is arranged on one side of the frame, a pulley is placed on the guide rail, so that the compensator can be conveniently transported to the position below the first hydraulic cylinder by the pulley, or the compensator can be conveniently transported out of the position below the first hydraulic cylinder, the efficiency of mounting and dismounting the compensator is improved, and compensators with different specifications can be conveniently fixed between the lower pressing plate and the upper pressing plate;

3. be provided with different regulation holes on the stand, through the regulation hole of change and locating hole connection, conveniently change the interval between roof and the bottom plate, make things convenient for first pneumatic cylinder to support tightly the compensator of different length, improve the suitability that carries out withstand voltage detection to the compensator of different length.

Drawings

Fig. 1 is a schematic structural diagram of a detection device for detecting pressure resistance of a compensator according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a display rack, an upper pressing plate, a lower pressing plate, a top plate, a first hydraulic cylinder and a pressurizing assembly of a detection device for detecting pressure resistance of a compensator according to an embodiment of the present application.

Fig. 3 is a schematic structural diagram of a detecting device for detecting pressure resistance of a compensator for showing an upper pressure plate and a lower pressure plate according to an embodiment of the present application.

Fig. 4 is a structural schematic diagram of a second view angle of a display rack, an upper pressing plate, a lower pressing plate, a top plate, a first hydraulic cylinder and a pressurizing assembly of the detection device for detecting the pressure resistance of the compensator according to the embodiment of the application.

Fig. 5 is an enlarged view of a portion a in fig. 4.

Fig. 6 is a schematic structural diagram of a hidden upper pressure plate, a pressing component and a controller of a detection device for detecting pressure resistance of a compensator according to an embodiment of the present application.

Fig. 7 is an enlarged view of a portion B in fig. 6.

Fig. 8 is a perspective cross-sectional view of a hidden upper plate and a pressing component of a detection device for detecting pressure resistance of a compensator according to an embodiment of the present application.

Fig. 9 is a schematic structural diagram of a hidden upper pressure plate and a hidden pressurizing assembly of a detection device for detecting pressure resistance of a compensator according to an embodiment of the present application.

Fig. 10 is an enlarged view of a portion C in fig. 9.

Fig. 11 is a perspective cross-sectional view of a detection device for detecting pressure resistance of a compensator according to an embodiment of the present application, showing a second cylinder.

Description of reference numerals: 1. a frame; 101. a base plate; 1011. a chute; 102. a column; 1021. an adjustment hole; 103. a support; 2. a lower pressing plate; 2001. a lower fixing groove; 2002. a first water through hole; 201. a lower fixing member; 2011. a first through hole; 202. a lower positioning ring; 2021. a lower seal groove; 203. a lower seal ring; 204. a first positioning ring; 2041. a first seal groove; 205. a first seal ring; 206. a positioning column; 3. an upper pressure plate; 3001. an upper fixing groove; 2002. a second water through hole; 301. an upper fixing member; 3011. a second through hole; 302. an upper positioning ring; 3021. an upper seal groove; 303. an upper sealing ring; 304. a second positioning ring; 3041. a second seal groove; 305. a second seal ring; 4. a pressurizing assembly; 401. a water storage tank; 402. a water outlet pipe; 403. discharging the water pump; 404. a water outlet valve; 405. a water return pipe; 406. a water return pump; 407. a water return valve; 408. a water pipe; 409. a pressurized water pump; 410. a pressure-resistant rubber tube; 5. a top plate; 51. positioning holes; 6. a first hydraulic cylinder; 7. a water inlet pipe; 71. a first water stop valve; 8. a pressurizing pipe; 8. a second water stop valve; 9. an exhaust pipe; 91. an exhaust valve; 10. a guide rail; 1001. a guide groove; 11. a pulley; 111. a support plate; 112. a rotating wheel; 1121. a guide block; 113. positioning a plate; 1131. positioning a groove; 114. fixing the pile; 12. a drive member; 121. a driving wheel; 122. a driven wheel; 123. a chain; 124. a drive member; 125. a positioning frame; 1251. a long round hole; 1252. fixing the bolt; 126. a propping plate; 1261. a threaded hole; 127. adjusting the bolt; 128. a guide angle steel; 13. a brake member; 131. a limiting block; 132. a controller; 133. a limit switch; 14. a second hydraulic cylinder; 15. a fixing pin; 16. a lower lifting lug; 17. and (4) an upper lifting lug.

Detailed Description

The present application is described in further detail below with reference to figures 1-11.

The embodiment of the application discloses a detection device for detecting the pressure resistance of a compensator.

Referring to fig. 1, 2 and 3, the detection device comprises a rack 1, a lower pressing plate 2, an upper pressing plate 3 and a pressurizing assembly 4, wherein the rack 1 comprises a bottom plate 101 and four upright posts 102, the bottom plate 101 is cuboid, the bottom plate 101 is horizontally arranged, the upright posts 102 are cuboid, the upright posts 102 are arranged around the bottom plate 101, the upright posts 102 and the bottom plate 101 are fixedly connected through pins, the lower pressing plate 2 and the upper pressing plate 3 are both hollow cuboid, the lower pressing plate 2 and the upper pressing plate 3 are both arranged on the bottom plate 101, the upper pressing plate 3 is arranged above the lower pressing plate 2, lower lifting lugs 16 are arranged on the periphery of the lower pressing plate 2, the lower lifting lugs 16 are provided with four lifting lugs, and the lower lifting lugs 16 are uniformly welded on the periphery of the upper pressing plate 3; a lower fixing groove 2001 and a first water through hole 2002 are formed in the top of the lower pressing plate 2, the lower fixing groove 2001 and the first water through hole 2002 are both cylindrical, the lower fixing groove 2001 and the first water through hole 2002 are perpendicular to the lower pressing plate 2, the lower fixing groove 2001 and the first water through hole 2002 are coaxial and are located in the center of the lower pressing plate 2, a lower fixing member 201 is placed in the lower fixing groove 2001, the lower fixing member 201 is annular, eight first through holes 2011 are uniformly formed in one side, close to the first water through hole 2002, of the lower fixing member 201, the axes of the eight first through holes 2011 are perpendicular to the lower fixing member 201, and bolts in threaded connection with the lower pressing plate 2 penetrate through the eight first through holes 2011; a plurality of lower positioning rings 202 concentrically arranged are integrally formed on the top surface of the lower fixing member 201, in the embodiment, three lower positioning rings 202 are arranged at intervals, and the lower positioning rings 202 are coaxial with the lower fixing member 201; an arc-shaped lower sealing groove 2021 is formed in the outer side wall of the lower positioning ring 202, a lower sealing ring 203 is elastically clamped in the lower sealing groove 2021, and the lower sealing ring 203 is a rubber ring; the top of holding down plate 2 still is provided with first holding ring 204, first holding ring 204 can set up to one or more, in this embodiment, first holding ring 204 is provided with one, first holding ring 204 and holding down plate 2 integrated into one piece, the diameter of first holding ring 204 is greater than the diameter of the lower holding ring 202 in the outside, first holding ring 204 and the coaxial setting of lower holding ring 202, curved first seal groove 2041 has been seted up to first holding ring 204 lateral wall, elastic joint has first sealing washer 205 in the first seal groove 2041.

The periphery of the upper pressing plate 3 is provided with four upper lifting lugs 17, and the upper lifting lugs 17 are uniformly welded on the periphery of the upper pressing plate 3; an upper fixing groove 3001 and a second water passing hole 2002 are formed in the bottom of the upper pressing plate 3, the upper fixing groove 3001 and the second water passing hole 2002 are both cylindrical, the upper fixing groove 3001 and the second water passing hole 2002 are perpendicular to the upper pressing plate 3, the upper fixing groove 3001 and the second water passing hole 2002 are coaxial and are located in the center of the upper pressing plate 3, an upper fixing piece 301 is placed in the upper fixing groove 3001, the upper fixing piece 301 is annular, eight second through holes 3011 are uniformly formed in one side, close to the second water passing hole 2002, of the upper fixing piece 301, the axial lines of the eight second through holes 3011 are perpendicular to the upper fixing piece 301, and bolts in threaded connection with the upper pressing plate 3 penetrate through the eight second through holes 3011; a plurality of upper positioning rings 302 concentrically arranged are integrally formed on the bottom surface of the upper fixing member 301, in the embodiment, three upper positioning rings 302 are arranged at intervals, and the upper positioning rings 302 are coaxial with the upper fixing member 301; an arc-shaped upper sealing groove 3021 is formed in the outer side wall of the upper positioning ring 302, an upper sealing ring 303 is elastically clamped in the upper sealing groove 3021, and the upper sealing ring 303 is a rubber ring; the bottom of the upper platen 3 is further provided with a second positioning ring 304, the number of the second positioning rings 304 can be one or more, in this embodiment, one second positioning ring 304 is provided, the second positioning ring 304 and the upper platen 3 are integrally formed, the diameter of the second positioning ring 304 is larger than that of the upper positioning ring 302, the second positioning ring 304 and the upper positioning ring 302 are coaxially arranged, an arc-shaped second sealing groove 3041 is formed in the outer side wall of the second positioning ring 304, and a second sealing ring 305 is elastically clamped in the second sealing groove 3041.

The top of the upright post 102 is further provided with a top plate 5, the top plate 5 is in a cuboid shape, the top plate 5 is horizontally arranged, the top plate 5 is provided with a positioning hole 51, the axis of the positioning hole 51 is perpendicular to the height direction of the upright post 102, the top of the upright post 102 is provided with two adjusting holes 1021, the axis direction of the adjusting hole 1021 is the same as the axis direction of the positioning hole 51, the two adjusting holes 1021 are arranged at intervals along the length direction of the upright post 102, fixing pins 15 are inserted into the adjusting holes 1021 and the positioning hole 51, the fixing pins 15 sequentially penetrate through the adjusting holes 1021 and the positioning hole 51, the top plate 5 is fixedly connected with a first hydraulic cylinder 6, the first hydraulic cylinder 6 is located at the center of the top plate 5, the first hydraulic cylinder 6 is an oil hydraulic cylinder, the axis of the first hydraulic cylinder 6 is coaxial with the axis of the upper positioning ring 302, a shell of the first hydraulic cylinder 6 is fixedly connected with the top plate 5 through bolts, and a piston rod of the first hydraulic cylinder 6 can move towards one side of the upper pressing plate 3; and the pressurizing assembly 4 is used for injecting water into a space enclosed by the lower pressing plate 2, the upper pressing plate 3 and the compensator and pressurizing.

Firstly, selecting an adjusting hole 1021 connected with a positioning hole 51, fixedly connecting a top plate 5 with a stand column 102 through a fixing pin 15, penetrating a steel wire rope at an upper lifting lug 17, driving the steel wire rope to move by a lifting hook of a hoisting device, separating an upper pressure plate 3 from a lower pressure plate 2, placing a compensator on the surface of a lower fixing part 201, attaching the inner wall of the bottom end of the compensator to the outer side of a lower positioning ring 202, sealing the bottom end of the compensator by a lower sealing ring 203, placing the upper pressure plate 3 on the top of the compensator, attaching the outer side of an upper positioning ring 302 to the inner wall of the top end of the compensator, sealing the top end of the compensator by an upper sealing ring 303, starting a first hydraulic cylinder 6, tightly abutting a piston rod of the first hydraulic cylinder 6 against the top surface of the upper pressure plate 3, fixing the compensator between the upper pressure plate 3 and the lower pressure plate 2, injecting water and pressurizing into the compensator by a pressurizing assembly 4, and testing the pressure resistance of the compensator; when the compensators with different specifications are tested, the bottom ends of the compensators are attached to the lower positioning rings 202 with different radiuses, the top ends of the compensators are attached to the upper positioning rings 302 with different radiuses, and the compensators with different specifications are fixed between the upper pressure plate 3 and the lower pressure plate 2; if the compensator is sized larger than the largest radius of either the lower retaining ring 202 or the upper retaining ring 302, the compensator is placed between the first retaining ring 204 and the second retaining ring 304, with the first seal ring 205 sealing against the bottom inner wall of the compensator and the second seal ring 305 sealing against the top inner wall of the compensator. The compensator of different specifications can be conveniently detected by the compensator, and the applicability of the detection equipment is improved.

Referring to fig. 3, 4 and 5, in order to facilitate water injection and pressurization inside the compensator, a water inlet pipe 7 for injecting water into the compensator is welded on the lower pressure plate 2, the water inlet pipe 7 is horizontally arranged, one end of the water inlet pipe 7 is communicated with an inner cavity of the lower pressure plate 2, the other end of the water inlet pipe 7 extends out of the side wall of the lower pressure plate 2, one end of the water inlet pipe 7 extending out of the lower pressure plate 2 is sequentially welded with a first water stop valve 71 and a quick connector, and the first water stop valve 71 is a fully welded ball valve; a pressurizing pipe 8 used for pressurizing the compensator is welded on the upper pressing plate 3, the pressurizing pipe 8 is horizontally arranged, one end of the pressurizing pipe 8 is communicated with an inner cavity of the upper pressing plate 3, the other end of the pressurizing pipe 8 extends out of the side wall of the upper pressing plate 3, a second water stop valve 8 is welded on one side of the pressurizing pipe 8 extending out of the upper pressing plate 3, and the second water stop valve 8 is an all-welded ball valve; still weld on the top board 3 and have blast pipe 9, 9 one ends of blast pipe are used for and compensator inner chamber intercommunication, and blast pipe 9 and top board 3 welded fastening, and the top board 3 is stretched out to the blast pipe 9 other end, and the welding of one side that the top board 3 was stretched out to blast pipe 9 has discharge valve 91, and discharge valve 91 is the ball valve.

The pressurizing assembly 4 comprises a water storage tank 401, a water outlet pipe 402, a water outlet pump 403, a water outlet valve 404, a water return pipe 405, a water return pump 406, a water return valve 407, a water passing pipe 408 and a pressurizing water pump 409, the water storage tank 401 is cuboid, the top of the water storage tank 401 is open, the water storage tank 401 is horizontally placed on the ground, one end of the water outlet pipe 402 is communicated with the bottom of the water storage tank 401, and the water outlet pipe 402 is welded and fixed with the side wall of the water storage tank 401; the water outlet pipe 402 is sequentially communicated with a water outlet pump 403 and a water outlet valve 404, and the water outlet pump 403 and the water outlet valve 404 are fixedly connected to the water outlet pipe 402 through flanges; one end of the water return pipe 405 faces the top of the water storage tank 401, the water return pump 406 and the water return valve 407 are sequentially arranged on the water return pipe 405, and the water return pump 406 and the water return valve 407 are both fixedly connected with the water return pipe 405 through flanges; the water outlet pipe 402, the water return pipe 405 and the water passing pipe 408 are communicated through a three-way joint, the water passing pipe 408 is a plastic water pipe, and one end of the water passing pipe 408, which is far away from the water return pipe 405, is communicated with the water inlet pipe 7 through a quick joint; the pressure water pump 409 is a pressure pump, a pressure-resistant rubber tube 410 is fixedly connected between the pressure water pump 409 and the pressure tube 8 through threads, and water in the water storage tank 401 enters the pressure-resistant rubber tube 410 after being pressurized by the pressure water pump 409.

When the pressure resistance of the compensator is detected, one end of the compensator is sealed with the upper pressing plate 3, the other end of the compensator is sealed with the lower pressing plate 2, the water outlet pipe 408 and the water inlet pipe 7 are connected, the water outlet valve 404, the first water stop valve 71 and the exhaust valve 91 are opened, the water outlet pipe 402, the water outlet pipe 408 and the water inlet pipe 7 are communicated, the water outlet pump 403 is opened, water in the water storage tank 401 enters a cavity of the compensator to be detected, air in the compensator to be detected is discharged along the exhaust pipe 9, and water injection in the compensator is completed; closing the first water stop valve 71, the water outlet valve 404 and the exhaust valve 91, opening the second water stop valve 8, fixedly connecting a pressure resistant rubber tube 410 and a pressure pipe 8 through threads, opening a pressure water pump 409, pressurizing water in the water storage tank 401 by the pressure water pump 409, allowing high-pressure water to enter an area formed by the upper pressure plate 3, the compensator and the lower pressure plate 2 along the pressure resistant rubber tube 410 and the pressure pipe 8, enabling the internal pressure of the compensator to reach a detection set value, closing the second water stop valve 8, and keeping the internal pressure of the compensator constant; after detection is finished, the second water stop valve 8 is opened, high-pressure water returns to the water storage tank 401 along the pressure-resistant rubber pipe 410, the water outlet valve 404 is closed, the exhaust valve 91 and the water return valve 407 are opened, the water return pump 406 is opened, and water in the compensator returns to the water storage tank 401 along the water inlet pipe 7, the water passing pipe 408 and the water return pipe 405 in sequence. This application can conveniently pressurize to the inside water injection of compensator, improves the convenience of detecting the withstand voltage performance of compensator, improves the suitability that check out test set detected the compensator of different specifications.

As shown in fig. 6 and 7, in order to facilitate installation or removal of the compensator, the rack 1 further includes a support 103, the support 103 is located on one side of the bottom plate 101 away from the water storage tank 401, the support 103 is of a frame structure, the support 103 is horizontally placed on the ground, the side walls of the support 103 and the bottom plate 101 are welded and fixed, the support 103 is provided with two guide rails 10, the two guide rails 10 are arranged at intervals, the guide rails 10 are rectangular hollow pipes, the guide rails 10 are horizontally arranged, the top of the guide rails 10 is parallel to the top of the bottom plate 101, the guide rails 10 and the support 103 are fixedly connected through bolts, the top surface of the bottom plate 101 is provided with a pulley 11, the pulley 11 includes a support plate 111 and a runner 112, the runner 112 is located at the bottom of the support plate 111, the axis of the runner 112 is perpendicular to the guide rails 10, and the bottoms of the support plate 111 are connected through ball bearings in a rolling manner; the guide rail 10 is provided with a guide groove 1001, the section of the guide groove 1001 is rectangular, the guide groove 1001 is provided along the sliding direction of the pulley 11, a guide block 1121 attached to the guide groove 1001 is integrally formed on the peripheral side of the rotating wheel 112, and the guide block 1121 is annular; be equipped with between guide rail 10 and the coaster 11 and be used for promoting the drive unit 12 of coaster 11 motion, backup pad 111 is used for placing holding down plate 2, backup pad 111 top welding has the locating plate 113 that is used for fixing a position holding down plate 2, locating plate 113 bulges the top surface of backup pad 111, locating plate 113 is perpendicular to backup pad 111, locating plate 113 is provided with two, two locating plate 113 are set up about backup pad 111 central symmetry, locating slot 1131 has been seted up at locating plate 113 top, locating slot 1131 cross-section is the trapezoidal of invering, locating slot 1131 sets up along the length direction of guide rail 10, welding reference column 206 on holding down plate 2, reference column 206 is perpendicular to the lateral wall of holding down plate 2, reference column 206 is provided with two, reference column 206 and locating plate 113 one-to-one, when holding down plate 2 bottom surface and backup pad 111 top surface laminating, reference column 206 stretches into locating slot 1131, reference column 206 and locating plate 113 block.

When waiting to detect compensator, coaster 11 leaves bottom plate 101 and reachs guide rail 10 top under the drive of driver part 12, place holding down plate 2, the compensator, top board 3 in proper order in backup pad 111, reference column 206 and constant head tank 1131 laminating, driver part 12 drives coaster 11 and slides on to bottom plate 101, through hoist device with top board 3, the whole hoisting of compensator and holding down plate 2, coaster 11 slips from bottom plate 101, holding down plate 2 is placed on bottom plate 101, detects the compensator. Set up 11 convenience compensators of coaster and leave bottom plate 101, reduce the compensator and place the degree of difficulty of directly installing or dismantling on frame 1, improve the convenience of installing or dismantling the compensator.

Referring to fig. 8, 9 and 10, in order to facilitate the movement of the pulley 11, the driving part 12 includes a driving wheel 121, a driven wheel 122, a chain 123 and a driving element 124 for driving the driving wheel 121 to rotate, the driving wheel 121 and the driven wheel 122 are both chain wheels, the driving wheel 121 and the driven wheel 122 are both vertically arranged, the driving wheel 121 and the driven wheel 122 are both located between the guide rails 10, the driving wheel 121 is located on one side of the bottom plate 101 away from the guide rails 10, and the driving wheel 121 and the bottom plate 101 are rotatably connected through a bearing; the driven wheel 122 is positioned on one side of the guide rail 10 far away from the driving wheel 121, a sliding groove 1011 which conveniently penetrates through the chain 123 is formed in the middle of the bottom plate 101, the cross section of the sliding groove 1011 is rectangular, the sliding groove 1011 is formed in the length direction of the guide rail 10, the chain 123 is wound on the periphery sides of the driving wheel 121 and the driven wheel 122, the bottom of the support plate 111 is provided with two fixing piles 114, the fixing piles 114 are arranged, the fixing piles 114 are perpendicular to the bottom surface of the support plate 111, the fixing piles 114 and the bottom surface of the support plate 111 are integrally formed, and the end part of the chain 123 is fixedly connected with the fixing piles 114 through bolts; the driving member 124 may be a motor or a motor with a gear box, in this embodiment, the driving member 124 is a motor with a bevel gear set, the housing of the driving member 124 is fixedly connected with the base plate 101 through a bolt, and the output shaft of the driving member 124 is fixedly connected with the rotating shaft of the driving wheel 121 through a coupling.

A positioning frame 125 is arranged on one side, close to the driven wheel 122, of the top of the support 103, the driven wheel 122 is rotatably connected with the positioning frame 125 through a bearing, four long round holes 1251 are formed in the periphery of the positioning frame 125, the four long round holes 1251 penetrate through the positioning frame 125, fixing bolts 1252 are arranged in the long round holes 1251, and the fixing bolts 1252 penetrate through the long round holes 1251 to be in threaded connection with the support 103; the support 103 is close to one side bolt fastening of driven wheel 122 and is had and supports tight board 126, support tight board 126 perpendicular to support 103, support tight board 126 surface and offer two screw holes 1261 that the interval set up, screw hole 1261 is offered along the slip direction of coaster 11, screw hole 1261 department is rotated and is connected with adjusting bolt 127, adjusting bolt 127 passes screw hole 1261 and supports tightly with locating rack 125 lateral wall, still weld guide angle steel 128 on the support 103, guide angle steel 128 is provided with two, guide angle steel 128 cross-section is the L type, the length direction of guide angle steel 128 is parallel with the length direction of guide rail 10, one side that guide angle steel 128 is close to locating rack 125 is laminated with locating rack 125.

The guide rail 10 is further provided with two braking parts 13 of the braking tackle 11, one braking part 13 is positioned on one side, close to the driving wheel 121, of the bottom plate 101, the other braking part 13 is positioned on one side, close to the driven wheel 122, of the support 103, the braking parts 13 comprise limit blocks 131, a controller 132 and limit switches 133, the number of the limit blocks 131 is four, the limit blocks 131 are positioned on the guide rail 10, the bottoms of the limit blocks 131 extend into the bottom wall of the guide groove 1001 and are fixedly connected with the bottom wall of the guide rail 10 through bolts, the two limit blocks 131 are arranged on the same guide groove, the side, close to each other, of the two limit blocks 131 on the same guide groove 1001 is provided with a cambered surface, and the concave surfaces of the limit blocks 131 are arranged oppositely; limit switch 133 is located between two guide slots 1001, limit switch 133 is provided with two, one limit switch 133 is located the support 103 and is close to one side of following driving wheel 122, another limit switch 133 bolt fastening is in the bottom plate 101 and is close to one side of action wheel 121, the interval between two limit switches 133 is less than the interval between two stopper 131 on same guide slot 1001, controller 132 places subaerial, controller 132 is the PLC controller, limit switch 133 and controller 132 electricity are connected, controller 132 and driving piece 124 electricity are connected.

When the pulley 11 needs to be driven to slide, the driving wheel 121 is driven to rotate by the driving piece 124, the chain 123 is driven to rotate by the driving wheel 121, the pulley 11 slides along the guide groove 1001, after the pulley 11 is completely separated from the bottom plate 101, the supporting plate 111 is attached to the limit switch 133, the limit switch 133 transmits a signal to the controller 132, the controller 132 controls the driving piece 124 to stop rotating, and the pulley 11 stops on the guide rail 10; when the limit switch 133 or the controller 132 fails and the driving member 124 continues to move, the pulley 112 and the limit block 131 are engaged, and the tackle 11 is fixed on the guide rail 10. When the chain 123 becomes loose, the fixing bolt 1252 for fixing the positioning frame 125 is loosened, the adjusting bolt 127 is rotated to the side far away from the driving wheel 121, the positioning frame 125 is slid, the positioning frame 125 moves to the side far away from the driving wheel 121, the distance between the driving wheel 121 and the driven wheel 122 is increased, the fixing bolt 1252 at the position of the long round hole 1251 is screwed, the positioning frame 125 is fixed, and the tensioning adjustment of the chain 123 is completed. The limiting block 131 can reduce the possibility that the pulley 11 is separated from the guide rail 10, so that the pulley 11 can drive the lower pressing plate 2 to slide on the guide rail 10 conveniently.

Referring to fig. 11, in order to fix or separate the lower pressing plate 2 and the tackle 11, the width of the lower pressing plate 2 is greater than the width of the supporting plate 111, a plurality of second hydraulic cylinders 14 are disposed on the bottom plate 101, the second hydraulic cylinders 14 may be two, three, or four, in this embodiment, the second hydraulic cylinders 14 are four, the four second hydraulic cylinders 14 are all vertically disposed, the housings of the four second hydraulic cylinders 14 are fixedly connected to the bottom plate 101 through bolts, the four second hydraulic cylinders 14 are distributed on the peripheral side of the supporting plate 111, when piston rods of the second hydraulic cylinders 14 move towards the lower pressing plate 2 and are attached to the bottom surface of the lower pressing plate 2, the supporting plate 111 is separated from the lower pressing plate 2, and the tackle 11 can slide away from the bottom plate 101. The piston rod of the second hydraulic cylinder 14 pushes the lower pressing plate 2 to be separated from the pulley 11, after the pulley 11 leaves the rack 1, the second hydraulic cylinder 14 descends, the lower pressing plate 2 is attached to the rack 1, the compensator is conveniently fixed on the bottom plate 101, and the safety of pressure resistance testing of the compensator is improved.

The implementation principle of the detection equipment for detecting the pressure resistance of the compensator in the embodiment of the application is as follows: when the pressure resistance of the compensator is detected, the upper press plate 3 and the lower press plate 2 which are positioned on the guide rail 10 are separated firstly, the compensator is placed between the lower press plate 2 and the upper press plate 3, the driving part 124 drives the driving wheel 121 to rotate, the driving wheel 121 drives the chain 123 to rotate, the chain 123 drives the pulley 11 to slide on the guide rail 10, the pulley 11 drives the upper press plate 3, the compensator and the lower press plate 2 to reach the bottom plate 101, the limit switch 133 is triggered, the controller 132 controls the driving part 124 to stop rotating, the pulley 11 stops moving, the piston rod of the second hydraulic cylinder 14 is lifted, the lower press plate 2 is separated from the pulley 11, the driving part 124 drives the driving wheel 121 to rotate, after the pulley 11 is separated from the bottom plate 101, the piston rod of the second hydraulic cylinder 14 descends, the lower press plate 2 is attached to the bottom plate 101, the piston rod of the first hydraulic cylinder 6 is attached to the top surface of the upper press plate 3, the compensator is fixed, the water pipe 408 and the pressure-resistant rubber pipe 410 are connected to inject water and pressurize the compensator, detecting the pressure resistance of the compensator; after the pressure resistance detection of the compensator is completed, water among the upper pressing plate 3, the compensator and the lower pressing plate 2 flows back into the water storage tank 401, a piston rod of the first hydraulic cylinder 6 contracts, a piston rod of the second hydraulic cylinder 14 extends, the lower pressing plate 2 is separated from the bottom plate 101, the driving piece 124 drives the pulley 11 to reach the bottom of the lower pressing plate 2, the second hydraulic cylinder 14 descends, the lower pressing plate 2 is placed on the pulley 11, the driving piece 124 drives the chain 123 to move, the pulley 11 leaves the bottom plate 101 to move towards one side of the guide rail 10, when the pulley 11 is attached to the limit switch 133, the controller 132 controls the driving piece 124 to stop rotating, the pulley 11 stops moving, the upper pressing plate 3 and the compensator are detached, and pressure resistance detection is performed on other compensators to be detected. The application conveniently carries out withstand voltage to the compensator of different radiuses and detects, improves the suitability that detects the compensator of different specifications.

The embodiment of the application also discloses a detection method for detecting the pressure resistance of the compensator.

In the case of the example 1, the following examples are given,

the detection method is realized by adopting the compensator detection equipment and comprises the following steps;

firstly, lifting an upper pressure plate 3 by using a lifting device, separating the upper pressure plate 3 from a lower pressure plate 2, checking the integrity of an upper sealing ring 303 and a lower sealing ring 203, placing a compensator on the lower pressure plate 2, selecting an upper positioning ring 302 and a lower positioning ring 202 which are attached to an inner cavity of the compensator, sleeving the inner wall of the bottom of the compensator on the outer side of the lower positioning ring 202, sealing the inner wall of the bottom end of the compensator by using the lower sealing ring 203, placing the upper pressure plate 3 at the top end of the compensator, sleeving the inner wall of the top of the compensator on the outer side of the upper positioning ring 302 for attachment, and sealing the top end of the compensator by using the;

step two, the first hydraulic cylinder 6 is started, a piston rod of the first hydraulic cylinder 6 moves towards the upper pressing plate 3, the piston rod of the first hydraulic cylinder 6 is tightly abutted against the top of the upper pressing plate 3, and the upper pressing plate 3, the compensator and the lower pressing plate 2 are fixed on the bottom plate 101;

step three, starting a pressurizing assembly 4, injecting water and pressurizing to the area among the upper pressing plate 3, the compensator and the lower pressing plate 2 by the pressurizing assembly 4, and enabling the pressure inside the compensator to reach a tested pressure value;

and step four, after the water injection and pressurization in the compensator are finished, maintaining the pressure in the compensator, checking whether water leaks from the outer side of the compensator, if the water leaks from the outer side of the compensator, the pressure resistance of the compensator is unqualified, and if the water does not leak from the outer side of the compensator, the pressure resistance of the compensator is qualified.

Example 2

Compensator detection method of example 2:

firstly, an upper pressing plate 3 and a lower pressing plate 2 are both positioned on a pulley 11, the pulley 11 is positioned on a guide rail 10, the upper pressing plate 3 is lifted by using a hoisting device, the upper pressing plate 3 is separated from the lower pressing plate 2, a compensator is placed on the surface of a lower fixing part 201, the inner wall of the bottom end of the compensator is attached to the outer side of a lower positioning ring 202, a lower sealing ring 203 seals the bottom end of the compensator, the upper pressing plate 3 is placed at the top of the compensator, the outer side of the upper positioning ring 302 is attached to the inner wall of the top end of the compensator, an upper sealing ring 303 seals the top end of the compensator, when compensators of different specifications are tested, the bottom end of the compensator is attached to the lower positioning rings 202 of different radii, the top end of the compensator is attached to the upper positioning rings 302 of different radii, and the compensators of different specifications are fixed between the upper pressing plate 3 and the lower pressing plate 2; if the compensator is sized larger than the largest radius of the lower retaining ring 202 or the upper retaining ring 302, the compensator is placed between the first retaining ring 204 and the second retaining ring 304, the first seal ring 205 seals the bottom inner wall of the compensator, and the second seal ring 305 seals the top inner wall of the compensator;

step two, the driving element 124 drives the driving wheel 121 to rotate, the driving wheel 121 drives the chain 123 to rotate, the chain 123 drives the pulley 11 to move towards the bottom plate 101, after the pulley 11 reaches the bottom plate 101, a limit switch 133 at the position, close to the driving wheel 121, of the bottom plate 101 is triggered, the limit switch 133 transmits a signal to the controller 132, the controller 132 controls the driving element 124 to stop rotating, and the compensator reaches the top of the bottom plate 101;

step three, the second hydraulic cylinder 14 is started, a piston rod of the second hydraulic cylinder 14 extends out, the second hydraulic cylinder 14 tightly presses the lower pressing plate 2, the lower pressing plate 2 is separated from the pulley 11, the driving piece 124 drives the pulley 11 to leave the bottom plate 101, a piston rod of the second hydraulic cylinder 14 contracts, the bottom wall of the lower pressing plate 2 is attached to the top surface of the bottom plate 101, the first hydraulic cylinder 6 is started, a piston rod of the first hydraulic cylinder 6 tightly presses the top surface of the upper pressing plate 3, and the compensator is fixed between the upper pressing plate 3 and the lower pressing plate 2;

step four, connecting a water pipe 408 with a water inlet pipe 7, opening a water outlet valve 404, a first water stop valve 71 and an exhaust valve 91, communicating a water outlet pipe 402, the water pipe 408 and the water inlet pipe 7, opening a water outlet pump 403, enabling water in a water storage tank 401 to reach a cavity of the compensator to be detected along the water outlet pipe 402, the water pipe 408, the water inlet pipe 7 and a first water through hole 2002, and discharging air in the compensator to be detected to the outside along a second water through hole 2002 and an exhaust pipe 9;

after water in the compensator is injected, an operator closes the first water stop valve 71, the water outlet valve 404 and the exhaust valve 91, opens the second water stop valve 8, the pressure resistant rubber pipe 410 and the pressure pipe 8 are fixedly connected through threads, opens the pressure water pump 409, the pressure water pump 409 pressurizes the water in the water storage tank 401, high-pressure water enters an area formed by the upper pressure plate 3, the compensator and the lower pressure plate 2 along the pressure resistant rubber pipe 410 and the pressure pipe 8, the internal pressure of the compensator reaches a detection set value, closes the second water stop valve 8, and keeps the internal pressure of the compensator constant for a period of time;

and step six, checking whether the outer wall of the compensator leaks water or not, if the outer side of the compensator leaks water, the pressure resistance of the compensator is unqualified, and if the outer side of the compensator does not leak water, the pressure resistance of the compensator is qualified.

And step seven, after the test is finished, opening the second water stop valve 8, returning the high-pressure water to the water storage tank 401 along the pressure-resistant rubber pipe 410, closing the water outlet valve 404, opening the exhaust valve 91 and the water return valve 407, opening the water return pump 406, and returning the water in the compensator to the water storage tank 401 along the water inlet pipe 7, the water passing pipe 408 and the water return pipe 405 in sequence.

Step eight, the first hydraulic cylinder 6 moves towards one side far away from the upper press plate 3, the fixed state of the upper press plate 3 is released, the piston rod of the second hydraulic cylinder 14 is lifted, the lower press plate 2, the compensator and the upper press plate 3 are lifted, the driving piece 124 drives the pulley 11 to reach the position below the lower press plate 2, the piston rod of the second hydraulic cylinder 14 is contracted, the positioning column 206 is clamped with the positioning plate 113, and the bottom wall of the lower press plate 2 is attached to the pulley 11;

step nine, the driving part 124 drives the pulley 11 to move to the guide rail 10, the limit switch 133 on the bracket 103 is triggered, the driving part 124 stops rotating, and the pulley 11 stops moving;

step ten, lifting the upper pressing plate 3 by using lifting equipment, separating the upper pressing plate 3 from the lower pressing plate 2, separating the inner wall of the bottom of the compensator from the outer side of the lower positioning ring 202, taking down the compensator which is detected, placing the upper pressing plate 3 on the lower pressing plate 2, and completing the pressure resistance detection of the compensator.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. The utility model provides a check out test set of withstand voltage performance of detection compensator, includes frame (1), its characterized in that: the device is characterized by further comprising a lower pressing plate (2), an upper pressing plate (3) and a pressurizing assembly (4), wherein the lower pressing plate (2) and the upper pressing plate (3) are placed on the rack (1), and the upper pressing plate (3) is placed above the lower pressing plate (2);

one side, facing the upper pressing plate (3), of the lower pressing plate (2) is detachably connected with a lower fixing piece (201), the top surface of the lower fixing piece (201) is fixedly provided with a plurality of lower positioning rings (202) which are concentrically arranged, the outer side of each lower positioning ring (202) is detachably connected with a lower sealing ring (203), and each lower positioning ring (202) is used for sealing the bottom end of the compensator;

one side, facing the lower pressing plate (2), of the upper pressing plate (3) is detachably connected with an upper fixing piece (301), one side, facing the lower fixing piece (201), of the upper fixing piece (301) is fixedly connected with a plurality of upper positioning rings (302) which are concentrically arranged, the outer side of each upper positioning ring (302) is detachably connected with an upper sealing ring (303), and each upper positioning ring (302) is used for sealing the top end of the compensator;

a top plate (5) is arranged at the top of the rack (1), a first hydraulic cylinder (6) is arranged on the top plate (5), the first hydraulic cylinder (6) is perpendicular to the top plate (5), a shell of the first hydraulic cylinder (6) is fixedly connected with the top plate (5), and a piston rod of the first hydraulic cylinder (6) can move towards one side of the upper pressing plate (3);

and the pressurizing assembly (4) is used for injecting water into a space enclosed by the lower pressing plate (2), the upper pressing plate (3) and the compensator and pressurizing.

2. The apparatus for detecting the pressure resistance of a compensator of claim 1, wherein: the lower pressing plate (2) and the upper pressing plate (3) are both arranged in a hollow mode, a first water through hole (2002) used for being communicated with an inner cavity of the compensator is formed in the top surface of the lower pressing plate (2), a water inlet pipe (7) used for injecting water into the compensator is fixedly connected to the side wall of the lower pressing plate (2), the water inlet pipe (7) is communicated with the inner cavity of the lower pressing plate (2), and a first water stop valve (71) is connected to the water inlet pipe (7);

the bottom wall of the upper pressure plate (3) is provided with a second water through hole (2002) which is used for being communicated with the inner cavity of the compensator, the side wall of the upper pressure plate (3) is fixedly connected with a pressurizing pipe (8) which is used for pressurizing the compensator, the pressurizing pipe (8) is communicated with the inner cavity of the upper pressure plate (3), and the pressurizing pipe (8) is connected with a second water stop valve (8);

the upper pressure plate (3) is also connected with an exhaust pipe (9), the exhaust pipe (9) is communicated with the inner cavity of the upper pressure plate (3), and the exhaust pipe (9) is connected with an exhaust valve (91);

the pressurizing assembly (4) comprises a water storage tank (401), a water outlet pipe (402), a water outlet pump (403), a water outlet valve (404), a water return pipe (405), a water return pump (406), a water return valve (407), a water passing pipe (408) and a pressurizing water pump (409), one end of the water outlet pipe (402) is communicated with the bottom of the water storage tank (401), and the water outlet pump (403) and the water outlet valve (404) are both fixedly connected to the water outlet pipe (402); one end of the water return pipe (405) faces the top of the water storage tank (401), and the water return pump (406) and the water return valve (407) are both fixedly connected to the water return pipe (405); outlet pipe (402), wet return (405) and water pipe (408) intercommunication, the one end that water pipe (408) kept away from wet return (405) can be dismantled with inlet tube (7) and be connected, pressure water pump (409) are used for injecting high pressure water through forcing pipe (8) to the compensator inner chamber.

3. The apparatus for detecting the pressure resistance of a compensator of claim 1, wherein: the top of the lower pressing plate (2) is fixedly connected with a first positioning ring (204), the first positioning ring (204) and the lower positioning ring (202) are coaxial, the radius of the first positioning ring (204) is larger than that of the lower positioning ring (202), and the outer side of the first positioning ring (204) is detachably connected with a first sealing ring (205); the bottom of the upper pressure plate (3) is fixedly connected with a second positioning ring (304) which has the same structure as the first positioning ring (204), and the outer wall of the second positioning ring (304) is detachably connected with a second sealing ring (305).

4. The apparatus for detecting the pressure resistance of a compensator of claim 1, wherein: frame (1) one side fixedly connected with guide rail (10), coaster (11) have been placed on guide rail (10) surface, coaster (11) can be followed guide rail (10) and slided, be equipped with between frame (1) and coaster (11) and be used for promoting drive unit (12) of coaster (11) motion, holding down plate (2) can be placed in coaster (11) top, coaster (11) top fixedly connected with is used for fixing a position locating plate (113) of holding down plate (2), locating slot (1131) have been seted up in locating plate (113), holding down plate (2) are provided with reference column (206), work as when holding down plate (2) and coaster (11) top laminating, reference column (206) stretch into in to locating slot (1131).

5. The apparatus for detecting the pressure resistance of the compensator of claim 4, wherein: drive unit (12) are including action wheel (121), follow driving wheel (122), chain (123) and drive action wheel (121) pivoted driving piece (124), action wheel (121) are located one side that guide rail (10) were kept away from in frame (1), action wheel (121) and frame (1) rotate to be connected, follow driving wheel (122) and be located one side that frame (1) were kept away from in guide rail (10), chain (123) are around locating action wheel (121) and the week side of following driving wheel (122), coaster (11) and chain (123) fixed connection.

6. The apparatus for detecting the pressure resistance of a compensator of claim 5, wherein: a positioning frame (125) is arranged between the driven wheel (122) and the frame (1), the positioning frame (125) is positioned on one side of the frame (1) far away from the driving wheel (121), the positioning frame (125) is connected with the frame (1) in a sliding way, the positioning frame (125) is provided with a long round hole (1251), the long round hole (1251) penetrates through the positioning frame (125), a fixing bolt (1252) fixedly connected with the frame (1) penetrates through the long round hole (1251), the positioning frame (125) is rotationally connected with the driven wheel (122), one side of the frame (1) close to the positioning frame (125) is provided with a pressing plate (126), the surface of the abutting plate (126) is provided with a threaded hole (1261), the axis of the threaded hole (1261) is parallel to the length direction of the guide rail (10), the threaded hole (1261) is internally threaded with an adjusting bolt (127), and one side of the adjusting bolt (127) close to the positioning frame (125) is tightly abutted against the positioning frame (125).

7. The apparatus for detecting the pressure resistance of a compensator of claim 5, wherein: be provided with two braking parts (13) on guide rail (10), one of them braking part (13) are located frame (1) and are close to one side of action wheel (121), and another braking part (13) are located guide rail (10) and are close to one side from driving wheel (122), braking part (13) include stopper (131), controller (132) and limit switch (133), stopper (131) fixed connection is in guide rail (10) tip, limit switch (133) fixed connection is in the tip of guide rail (10), limit switch (133) and controller (132) electricity are connected, controller (132) and driving piece (124) electricity are connected.

8. The apparatus for detecting the pressure resistance of the compensator of claim 4, wherein: frame (1) bottom is provided with a plurality of second pneumatic cylinders (14) that are used for separating holding down plate (2) and coaster (11), the axis of second pneumatic cylinder (14) is on a parallel with the axis of holding ring (202) down, and is a plurality of second pneumatic cylinder (14) set up in the week side of coaster (11), and are a plurality of the casing of second pneumatic cylinder (14) all with frame (1) fixed connection, the piston rod of second pneumatic cylinder (14) can move towards holding down plate (2) one side.

9. The apparatus for detecting the pressure resistance of a compensator of claim 1, wherein: frame (1) includes bottom plate (101) and stand (102), bottom plate (101) and stand (102) bottom fixed connection, stand (102) top sets up a plurality of regulation holes (1021), and is a plurality of the direction of height of the axis perpendicular to stand (102) of regulation hole (1021), it is a plurality of the direction of height interval setting of stand (102) is followed in regulation hole (1021), be provided with locating hole (51) on roof (5), it has fixed pin (15) to peg graft in locating hole (51) and regulation hole (1021).

10. A detection method for detecting the pressure resistance of a compensator is characterized in that: the detection is carried out by using the compensator detecting device as claimed in any one of claims 1 to 9, comprising the steps of;

separating an upper pressure plate (3) from a lower pressure plate (2), placing a compensator on the lower pressure plate (2), sleeving the bottom end of the compensator on the periphery of a lower positioning ring (202), placing the upper pressure plate (3) on the top end of the compensator, and sleeving the top end of the compensator on the periphery of an upper positioning ring (302);

step two, the first hydraulic cylinder (6) is started, a piston rod of the first hydraulic cylinder (6) moves towards the upper pressing plate (3), the piston rod of the first hydraulic cylinder (6) is tightly abutted against the top of the upper pressing plate (3), and the compensator is fixed between the upper pressing plate (3) and the lower pressing plate (2);

step three, starting a pressurizing assembly (4), and injecting water and pressurizing into the compensator by the pressurizing assembly (4);

and step four, after the water injection and pressurization in the compensator are finished, maintaining the pressure in the compensator, detecting whether the compensator leaks water or not, if the compensator leaks water, indicating that the pressure resistance of the compensator is unqualified, and if the compensator does not leak water, indicating that the pressure resistance of the compensator is qualified.

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