CN109556966B - Testing device and testing method for testing working pressure of thin hydraulic rubber capsule - Google Patents
Testing device and testing method for testing working pressure of thin hydraulic rubber capsule Download PDFInfo
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- CN109556966B CN109556966B CN201811435878.2A CN201811435878A CN109556966B CN 109556966 B CN109556966 B CN 109556966B CN 201811435878 A CN201811435878 A CN 201811435878A CN 109556966 B CN109556966 B CN 109556966B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
Abstract
The invention provides a testing device and a testing method for testing the working pressure of a thin hydraulic rubber capsule. The bearing box is placed in the center between the top cover clamping plate and the base clamping plate through an auxiliary device, and is connected and fixedly compressed through bolt fasteners penetrating through corresponding bolt holes of the upper clamping plate and the lower clamping plate. The top cover clamping plate is provided with a pressure testing hole and a pressurizing hole, the pressure testing hole is connected with a pressure instrument, and the pressurizing hole is externally connected with a hydraulic pump. The invention can carry out the pressurization test on the thin hydraulic rubber capsule, test whether the capsule can reach the designed working pressure and keep the working state stable, and simultaneously can carry out the measurement of the maximum working pressure and test the tightness of the contact connection part of each component.
Description
Technical Field
The invention relates to the technical field of working pressure testing of hydraulic rubber capsules, in particular to a testing device and a testing method for thin hydraulic rubber capsule working pressure testing.
Background
The thin rubber capsule is a nonstandard part, and at present, no relevant specifications are provided for the standard specification and relevant parameters in China. A large number of scientific researches and industrial practices prove that the working pressure index of the rubber capsule has the greatest influence on the quality of products in all process parameters, and is a comprehensive index of the quality of the products. Therefore, after the production and processing of the thin rubber capsule are completed, the related performance of the thin rubber capsule needs to be tested to check whether each index of the thin rubber capsule meets the design requirement, and the prior art does not have a testing device and a testing method for testing the design working pressure and the sealing quality of the thin rubber capsule.
Therefore, the testing device and the testing method thereof for the design working pressure test, the maximum working pressure test and the sealing quality test of the thin hydraulic rubber capsule are needed.
Disclosure of Invention
In order to solve the above technical problems, an object of the present invention is to provide a testing apparatus and a testing method thereof for testing the working pressure of a thin hydraulic rubber bladder, which can perform a cyclic test on the stability of the working state of the thin rubber bladder and the sealing performance of each connecting assembly under the action of different loading pressures and loading times.
The technical scheme of the invention is as follows: a testing device and a testing method for the inspection of the working pressure of a thin hydraulic rubber capsule comprise a pressure-bearing box, a top cover clamping plate, a base clamping plate and an auxiliary device; a pressure test hole and a pressurizing hole are arranged on the top cover clamping plate in a penetrating manner, the pressure test hole is connected with a pressure instrument, and the pressurizing hole is connected with a hydraulic pump; the pressure-bearing box is placed between the top cover clamping plate and the base clamping plate, and the normal pressure box is fixedly and tightly pressed by penetrating through bolt holes of the upper clamping plate and the lower clamping plate through bolt fasteners; the auxiliary device comprises four clamping jaws, movable clamping plates, threaded rods and an adjusting assembly, wherein sliding grooves are formed in the upper surfaces of the four clamping jaws, threaded sleeves are movably clamped in the sliding grooves and can slide left and right in the sliding grooves, the four clamping jaws are divided into two groups, two clamping jaws of each group are movably connected, the opening directions of the two groups of clamping jaws are opposite, the four movable clamping plates are respectively and movably arranged in the four clamping jaws and are connected with the two ends of an upper clamping plate and a lower clamping plate in a clamping manner, the four threaded rods are respectively in threaded connection with the four threaded sleeves and are movably connected with the four movable clamping plates, the upper ends of the four threaded rods are respectively provided with a first bevel gear, the adjusting assembly is provided with a rocker, the adjusting assembly is in meshed connection with the four first bevel gears, and the adjusting assembly can be controlled to drive the four first bevel gears to rotate by rotating the rocker, and then four movable clamping plates are controlled to move up and down in the four clamping jaws.
Further, the adjusting assembly comprises a shell, a linkage gear and a linkage rod; the linkage gear is movably arranged in the center of the inside of the shell, the rocker is connected with the linkage gear, four bevel gears II are uniformly arranged on the periphery of the linkage gear, the four bevel gears II are meshed with the linkage gear, the linkage rods are four, the four linkage rods are all arranged in the shell, one ends of the four linkage rods are respectively connected with the four bevel gears II, the other ends of the four linkage rods are respectively provided with a bevel gear III, the four bevel gears III are respectively meshed with the four bevel gears I, the four movable clamping plates are enabled to move downwards simultaneously by rotating the rocker on the adjusting component, the clamping plates arranged in two-up and two-down modes are simultaneously compressed, the pressing force is ensured to be uniform, when the bolt fastener is prevented from being manually screwed, the screwing degree is different, the pressure box is enabled to be uneven, and the test result is affected.
Further, the bottom central point of top cap splint puts and is provided with spacing boss, and the external diameter of spacing boss equals with the uncovered internal diameter of pressure-bearing box, and the top central point of base splint puts and is provided with spacing recess, and the internal diameter of spacing recess equals with the bottom of the case external diameter of pressure-bearing box, during the use, effectively guarantees that the bolt hole on the top cap splint aligns with the bolt hole on the base splint, and is convenient fixed.
Furthermore, a telescopic adjusting plate is arranged between each group of two clamping jaws, so that the positions of the clamping jaws can be adjusted conveniently.
Further, be provided with the locking subassembly on the rocker, carry out the locking to the adjusting part, be convenient for fix splint through the bolt fastener.
Further, the bolt fastener includes bolt, nut, fixed key circle, evenly is provided with 6 keyways along bolt length direction on the bolt, and the nut inboard evenly is provided with 6 keyways that correspond, evenly is provided with 6 spacing keys on the fixed key circle, and after the bolt is connected with the nut, the fixed key circle can overlap and establish in the bolt outside, makes 6 spacing keys insert in the keyway, prevents that many bolt fasteners are not hard up in the testing process, has improved the accuracy of test result.
Preferably, the testing device for checking the working pressure of the thin hydraulic rubber capsule further comprises an automatic pressure checking device, the automatic pressure checking device is connected with a pressure gauge externally connected with the pressure measuring hole, the automatic pressure checking device is also connected with a pressure generator and a pressure transmitter, the pressure generator provides and outputs a preset pressure for parallel pressure calibration, the automatic pressure checking device outputs a 22-25mA/6-10V driving signal to the pressure transmitter, and the pressure transmitter outputs a measured value of the preset pressure input from the pressure generator to a 22-25mA direct current superposed on the current and the backflow current and then sends the direct current to the automatic pressure checking device; the pressure calibration can be carried out on the pressure gauge through the automatic pressure calibration device, so that the result is more accurate.
The invention also provides a method for testing the working pressure of the thin hydraulic rubber capsule by using the testing device for testing the working pressure of the thin hydraulic rubber capsule, which comprises the following steps:
1) the pressure-bearing box is placed in the limiting groove at the upper part of the base clamping plate with an upward opening;
2) placing the joint end of the thin hydraulic rubber capsule upwards, and flatly paving the joint end into a pressure-bearing box;
3) aligning a limiting boss at the bottom of the top cover clamping plate with an opening of the pressure-bearing box, and respectively leading out two joints at the top of the capsule from a pressure testing hole and a pressurizing hole on the top cover clamping plate;
4) placing a top cover clamping plate on the pressure-bearing box, aligning the top cover clamping plate with each end face of a base clamping plate, synchronously pressing and fixing the top cover clamping plate on the upper part of the pressure-bearing box and the base clamping plate on the lower part of the pressure-bearing box by using an auxiliary device, then penetrating bolt holes at the same positions of the upper clamping plate and the lower clamping plate by using bolt fasteners, locking bolts and nuts by using a fixed key ring, and locking the pressure-bearing box;
5) opening the hydraulic pump, discharging air in the rubber capsule through the joint led out from the pressure test hole, and connecting the joint with a pressure instrument after the air in the rubber capsule is exhausted;
6) carrying out a graded loading test by using a hydraulic pump, and observing whether liquid seeps out from the joint of the pressure-bearing box and the top cover clamping plate, the pressure test hole and the pressurizing hole and whether the reading of a pressure instrument is stable under the action of each grade of loading pressure until the loading pressure reaches the capsule design working pressure;
7) and if no liquid seeps at the joint of the pressure bearing box and the top cover clamping plate, the pressure testing hole and the pressurizing hole within the set time and the reading of the pressure meter is stable, closing the hydraulic pump, repeating the steps 2) -6), and continuously testing the next group of rubber capsules.
Compared with the prior art, the invention has the beneficial effects that: by the testing device, the stability test of the design working pressure of the thin hydraulic rubber capsule and the inspection of the sealing property quantity of each component can be carried out, and the vacancy of the quality detection technology of the thin hydraulic rubber capsule is filled; the invention can circularly test the stability of the working state of the thin rubber capsule and the sealing performance of each component under the action of different loading pressures and loading times, and has safe and reliable test device, simple and rapid test method and strong operability. The auxiliary device can enable the upper clamping plate and the lower clamping plate to be uniformly pressed at the same time, so that the problem that the pressure box body is not uniformly pressed due to different screwing degrees when the bolt fastener is screwed manually is avoided, and the accuracy of a test result is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is a top view of the present invention;
FIG. 4 is a schematic structural view of a pressure-bearing box of the present invention;
FIG. 5 is a top view of the top cover cleat of the present invention;
FIG. 6 is a schematic view of the bottom structure of the top cover splint of the present invention;
FIG. 7 is a schematic view of the base clamp of the present invention;
FIG. 8 is an exploded view of the bolt fastener of the present invention;
FIG. 9 is a schematic view showing an external structure of the auxiliary device of the present invention;
FIG. 10 is a schematic view of the jaw configuration of the present invention;
FIG. 11 is a schematic view of the connection of the adjustment assembly of the present invention to the jaws;
FIG. 12 is a top view of the adjustment assembly of the present invention;
the device comprises a pressure bearing box 1, a top cover clamping plate 2, a limiting boss 21, a base clamping plate 3, a limiting groove 31, a bolt fastener 4, a bolt 41, a nut 42, a fixed key ring 43, a key groove 44, a limiting key 45, a pressure testing hole 5, a pressure charging hole 6, a bolt hole 7, an auxiliary device 8, a claw 801, a movable clamping plate 802, a threaded rod 803, an adjusting component 804, a sliding groove 805, a threaded sleeve 806, a telescopic adjusting plate 807, an umbrella gear I808, a rocking bar 809, a shell 810, a linkage gear 811, a linkage rod 812, an umbrella gear II 813 and an umbrella gear III 814.
Detailed Description
Example 1: as shown in fig. 1 and 9, the testing device for the working pressure inspection of the thin hydraulic rubber capsule comprises a pressure-bearing box 1, a top cover clamping plate 2, a base clamping plate 3, an auxiliary device 8 and an automatic pressure checking device;
as shown in fig. 2 and 4, the pressure-bearing box 1 is placed between the base clamping plate 3 and the top cover clamping plate 2, and the bolt fastener 4 passes through the top cover clamping plate 2 and passes through the bolt hole 7 corresponding to the base clamping plate 3 to connect and lock the pressure-bearing box 1;
as shown in fig. 6 and 7, a limiting boss 21 is arranged at the bottom center position of the top cover clamping plate 2, the outer diameter of the limiting boss 21 is equal to the inner diameter of the opening of the pressure-bearing box 1, a limiting groove 31 is arranged at the top center position of the base clamping plate 3, and the inner diameter of the limiting groove 31 is equal to the outer diameter of the box bottom of the pressure-bearing box 1;
as shown in fig. 3 and 5, the top cover clamping plate 2 is provided with a pressure testing hole 5 and a pressurizing hole 6 which penetrate through the upper plate surface and the lower plate surface, the pressure testing hole 5 is connected with a pressure instrument, and the pressurizing hole 6 is connected with a hydraulic pump; the edges of the top cover clamping plate 2 and the base clamping plate 3 are provided with bolt holes 7 penetrating through the upper plate surface and the lower plate surface; the automatic pressure checking device is connected with a pressure instrument connected with the pressure test hole 5, the automatic pressure checking device is also connected with a pressure generator and a pressure transmitter, the pressure generator provides and outputs preset pressure for parallel calibration of pressure, the automatic pressure checking device outputs a driving signal of 22-25mA/6-10V to the pressure transmitter, the pressure transmitter outputs a measured value of the preset pressure input from the pressure generator to 22-25mA direct current superposed on the current and the backflow, and then the measured value is sent to the automatic pressure checking device;
as shown in fig. 8, the bolt fastening member 4 includes a bolt 41, a nut 42, and a fixed key ring 43, 6 key slots 44 are uniformly arranged on the bolt 41 along the length direction of the bolt 41, 6 corresponding key slots 44 are uniformly arranged on the inner side 42 of the nut, 6 limit keys 45 are uniformly arranged on the fixed key ring 43, and after the bolt 41 is connected with the nut 42, the fixed key ring 43 can be sleeved outside the bolt 41, so that the 6 limit keys 45 are inserted into the key slots 44;
as shown in fig. 10, 11 and 12, the auxiliary device 8 includes four claws 801, four movable clamping plates 802, threaded rods 803 and an adjusting assembly 804, the four claws 801 are provided, the upper surfaces of the four claws 801 are provided with sliding grooves 805, threaded sleeves 806 are movably clamped in the sliding grooves 805, the threaded sleeves 806 can slide left and right in the sliding grooves 805, the four claws 801 are divided into two groups, a telescopic adjusting plate 807 is provided between two claws 801 of each group, the opening directions of the two groups of claws 801 are opposite, the four movable clamping plates 802 are provided, the four movable clamping plates 802 are movably provided in the four claws 801 respectively, the four claws 801 are clamped and connected with two ends of four i-beams 5, the threaded rods 803 are four, the four threaded rods 803 are respectively connected to the four threaded sleeves 806 in a threaded manner and movably connected with the four movable clamping plates 802, umbrella-shaped gears 808 are provided at the upper ends of the four threaded rods 803, the adjusting assembly 804, A linkage gear 811 and a linkage rod 812, wherein the linkage gear 811 is movably arranged at the central position inside the shell 810, a rocker 809 is connected with the linkage gear 811, four bevel gears two 813 are uniformly arranged on the periphery of the linkage gear 811, the four bevel gears two 813 are meshed with the linkage gear 811, four linkage rods 812 are provided, the four linkage rods 812 are all arranged inside the shell 810, one ends of the four linkage rods 812 are respectively connected with the four bevel gears two 813, the other ends of the four linkage rods 812 are respectively provided with a bevel gear three 814, the four bevel gears three 814 are respectively meshed with the four bevel gears one 808, the linkage gear 811 is provided with the rocker 809, the rocker 809 is provided with a locking component, the adjusting component 804 is meshed with the four bevel gears one 808, the rocker 809 can be rotated to control the linkage gear 811 to drive the four bevel gears 808 to rotate, so as to control the four movable clamping plates 802 to move up and down in the four claws 801.
The invention also provides a method for testing the working pressure of the thin hydraulic rubber capsule by using the testing device for testing the working pressure of the thin hydraulic rubber capsule, which comprises the following steps:
1) the pressure-bearing box 1 is placed in the limiting groove 31 at the upper part of the base clamping plate 5 with an upward opening;
2) placing the joint end of the thin hydraulic rubber capsule upwards, and flatly paving the joint end into a pressure-bearing box 1;
3) aligning a limiting boss 21 at the bottom of the top cover clamping plate 2 with an opening of the pressure-bearing box 1, and respectively leading out two joints at the top of the capsule from a pressure testing hole 5 and a pressurizing hole 6 on the top cover clamping plate 2;
4) placing the top cover clamping plate 2 on the pressure-bearing box 1 to be aligned with each end face of the base clamping plate 3, synchronously compressing and fixing the top cover clamping plate 2 at the upper part of the pressure-bearing box 1 and the base clamping plate 3 at the lower part by using the auxiliary device 8, then penetrating the bolt holes 7 at the same positions of the upper clamping plate and the lower clamping plate by using the bolt fasteners 4, locking the bolts 41 and the nuts 42 by using the fixing key rings 43, and locking the pressure-bearing box 1;
5) opening the hydraulic pump, discharging the air in the rubber capsule through the joint led out from the pressure test hole 5, and connecting the joint with a pressure instrument after the air in the rubber capsule is discharged;
6) carrying out a graded loading test by using a hydraulic pump, and observing whether liquid seeps out at the joint of the pressure-bearing box 1 and the top cover clamping plate 2, the pressure test hole 5 and the pressurizing hole 6 and whether the reading of a pressure instrument is stable under the action of each grade of loading pressure until the loading pressure reaches the capsule design working pressure;
7) if no liquid seeps at the joint of the pressure bearing box 1 and the top cover clamping plate 2, the pressure testing hole 5 and the pressurizing hole 6 within a specified time and the reading of the pressure meter is stable, the hydraulic pump is closed, and the steps 2) -6) are repeated to continue testing the next group of thin hydraulic rubber capsules.
Example 2: the difference from the embodiment 1 is that the embodiment 2 further comprises an automatic pressure calibration device, and the automatic pressure calibration device is connected with a pressure instrument externally connected with the pressure test hole 5. The automatic pressure checking device is also connected with a pressure generator and a pressure transmitter, the pressure generator provides and outputs a preset pressure for parallel calibration pressure, the automatic pressure checking device outputs a driving signal of 22-25mA/6-10V to the pressure transmitter, and the pressure transmitter outputs a measured value of the preset pressure input from the pressure generator to a direct current of 22-25mA superimposed on the current and the reflux and then sends the measured value to the automatic pressure checking device.
The method for testing the working pressure of the thin hydraulic rubber capsule by using the testing device for testing the working pressure of the thin hydraulic rubber capsule comprises the following steps:
1) the pressure-bearing box 1 is placed in the limiting groove 31 at the upper part of the base clamping plate 5 with an upward opening;
2) placing the joint end of the thin hydraulic rubber capsule upwards, and flatly paving the joint end into a pressure-bearing box 1;
3) aligning a limiting boss 21 at the bottom of the top cover clamping plate 2 with an opening of the pressure-bearing box 1, and respectively leading out two joints at the top of the capsule from a pressure testing hole 5 and a pressurizing hole 6 on the top cover clamping plate 2;
4) placing the top cover clamping plate 2 on the pressure-bearing box 1 to be aligned with each end face of the base clamping plate 3, synchronously compressing and fixing the top cover clamping plate 2 at the upper part of the pressure-bearing box 1 and the base clamping plate 3 at the lower part by using the auxiliary device 8, then penetrating the bolt holes 7 at the same positions of the upper clamping plate and the lower clamping plate by using the bolt fasteners 4, locking the bolts 41 and the nuts 42 by using the fixing key rings 43, and locking the pressure-bearing box 1;
5) opening the hydraulic pump, discharging the air in the rubber capsule through the joint led out from the pressure test hole 5, and connecting the joint with a pressure instrument after the air in the rubber capsule is discharged;
6) carrying out a graded loading test by using a hydraulic pump, and observing whether liquid seeps out at the joint of the pressure-bearing box 1 and the top cover clamping plate 2, the pressure test hole 5 and the pressurizing hole 6 and whether the reading of a pressure instrument is stable under the action of each grade of loading pressure until the loading pressure reaches the capsule design working pressure;
7) calibrating the internal pressure of the rubber capsule by an automatic pressure calibration device;
8) if no liquid seeps at the joint of the pressure bearing box 1 and the top cover clamping plate 2, the pressure testing hole 5 and the pressurizing hole 6 within a specified time and the reading of the pressure meter is stable, the hydraulic pump is closed, and the steps 2) -6) are repeated to continue testing the next group of thin hydraulic rubber capsules.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. A testing device for the inspection of the working pressure of a thin hydraulic rubber capsule is characterized by comprising a pressure-bearing box (1), a top cover clamping plate (2), a base clamping plate (3) and an auxiliary device (8);
a pressure test hole (5) and a pressurizing hole (6) are arranged on the top cover clamping plate (2) in a penetrating mode, the pressure test hole (5) is connected with a pressure instrument, the pressurizing hole (6) is connected with a hydraulic pump, and a bolt hole (7) is arranged on the top cover clamping plate (2) in a penetrating mode;
the pressure-bearing box (1) is placed in the center of the base clamping plate (3), the top cover clamping plate (2) is aligned with a bolt hole (7) formed in the base clamping plate (3) in a penetrating mode through a bolt fastener (4) and then connected, and the pressure-bearing box (1) is fixedly compressed;
the auxiliary device (8) comprises four clamping jaws (801), movable clamping plates (802), threaded rods (803) and adjusting assemblies (804), wherein the four clamping jaws (801) are provided, sliding grooves (805) are formed in the upper surfaces of the four clamping jaws (801), threaded sleeves (806) are movably clamped in the sliding grooves (805), the threaded sleeves (806) can slide left and right in the sliding grooves (805), the four clamping jaws (801) are divided into two groups, two clamping jaws (801) in each group are movably connected, the opening directions of the two groups of clamping jaws (801) are opposite, the four movable clamping plates (802) are respectively and movably arranged in the four clamping jaws (801), the four clamping jaws (801) are connected with two ends of the top cover clamping plate (2) and the base clamping plate (3) in a clamping manner, the four threaded rods (803) are respectively in threaded connection with the four threaded sleeves (806) and are movably connected with the four movable clamping plates (802), the upper ends of the four threaded rods (803) are provided with umbrella-shaped gears I (808), the adjusting component (804) is provided with a rocker (809), the adjusting component (804) is meshed with the umbrella-shaped gears I (808), the adjusting component (804) can be controlled by rotating the rocker (809) to drive the umbrella-shaped gears I (808) to rotate, and then the four movable clamping plates (802) are controlled to move up and down in the four clamping jaws (801).
2. The testing device for low profile hydraulic rubber bladder working pressure verification of claim 1, wherein the adjustment assembly (804) comprises a housing (810), a linkage gear (811), a linkage rod (812); linkage gear (811) activity sets up shell (810) inside central point puts, rocker (809) are connected with linkage gear (811), and linkage gear (811) periphery evenly is provided with two (813) of four umbrella type gears, four two (813) of umbrella type gear are connected with linkage gear (811) meshing, linkage pole (812) have four, and four linkage pole (812) all set up inside shell (810), and the one end of four linkage pole (812) is connected with two (813) of four umbrella type gears respectively, and the other end of four linkage pole (812) all is provided with three (814) of umbrella type gear, four three (814) of umbrella type gear are connected with the meshing of four umbrella type gears (808) respectively.
3. The testing device for the inspection of the working pressure of the thin hydraulic rubber capsule as claimed in claim 1, wherein a limiting boss (21) is arranged at the bottom center position of the top cover clamping plate (2), and the outer diameter of the limiting boss (21) is equal to the inner diameter of an opening of the pressure bearing box (1).
4. The testing device for the working pressure inspection of the thin hydraulic rubber capsule as claimed in claim 1, wherein a limiting groove (31) is formed in the center of the top of the base clamping plate (3), and the inner diameter of the limiting groove (31) is equal to the outer diameter of the bottom of the pressure bearing box (1).
5. The testing device for the working pressure inspection of the thin hydraulic rubber capsule as claimed in claim 1, wherein a telescopic adjusting plate (807) is arranged between two claws (801) of each group.
6. The testing device for low-profile hydraulic rubber bladder working pressure verification of claim 1, wherein a locking assembly is provided on the rocking bar (809).
7. The testing device for the working pressure inspection of the thin hydraulic rubber capsule as claimed in claim 1, wherein the bolt fastener (4) comprises a bolt (41), a nut (42) and a fixed key ring (43), 6 key grooves (44) are uniformly formed in the bolt (41) along the length direction of the bolt (41), 6 corresponding key grooves (44) are uniformly formed in the inner side of the nut (42), 6 limiting keys (45) are uniformly arranged on the fixed key ring (43), and after the bolt (41) is connected with the nut (42), the fixed key ring (43) can be sleeved outside the bolt (41) to enable the 6 limiting keys (45) to be inserted into the key grooves (44).
8. The method for performing rubber bladder pressure test using the test device for low profile hydraulic rubber bladder working pressure test of any one of claims 1 to 6, comprising the steps of:
1) the pressure-bearing box (1) is placed in a limiting groove (31) at the upper part of the base clamping plate (3) with an upward opening;
2) the joint end of the thin hydraulic rubber capsule is placed upwards and is tiled and loaded into the pressure-bearing box (1);
3) aligning a limiting boss (21) at the bottom of the top cover clamping plate (2) with an opening of the pressure-bearing box (1), and respectively leading out two joints at the top of the capsule from a pressure testing hole (5) and a pressurizing hole (6) on the top cover clamping plate (2);
4) placing a top cover clamping plate (2) on a pressure-bearing box (1) to be aligned with each end face of a base clamping plate (3), synchronously pressing and fixing the top cover clamping plate (2) on the upper portion of the pressure-bearing box (1) and the base clamping plate (3) on the lower portion by using an auxiliary device (8), then penetrating bolt holes (7) in the same positions of the upper clamping plate and the lower clamping plate by using bolt fasteners (4), locking bolts (41) and nuts (42) by using fixed key rings (43), and locking the pressure-bearing box (1);
5) opening the hydraulic pump, discharging air in the rubber capsule through a joint led out from the pressure testing hole (5), and connecting the joint with a pressure instrument after the air in the rubber capsule is exhausted;
6) a hydraulic pump is used for carrying out a graded loading test, and whether liquid seeps out at the joint of the pressure-bearing box (1) and the top cover clamping plate (2), the pressure testing hole (5) and the pressurizing hole (6) and whether the reading of a pressure meter is stable or not under the action of each grade of loading pressure are observed until the loading pressure reaches the capsule design working pressure;
7) if no liquid seeps at the joint of the pressure bearing box (1) and the top cover clamping plate (2) and the pressure testing hole (5) and the pressurizing hole (6) within the specified time and the reading of the pressure meter is stable, the hydraulic pump is closed, the steps 2-6 are repeated, and the next group of thin hydraulic rubber capsules are tested continuously.
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| CN201811435878.2A CN109556966B (en) | 2018-11-28 | 2018-11-28 | Testing device and testing method for testing working pressure of thin hydraulic rubber capsule |
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| CN201811435878.2A CN109556966B (en) | 2018-11-28 | 2018-11-28 | Testing device and testing method for testing working pressure of thin hydraulic rubber capsule |
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| CN110553923B (en) * | 2019-09-10 | 2020-10-23 | 中国水利水电科学研究院 | Large-area flat rubber bag pressure-bearing deformation capacity testing device and testing method |
| CN111122075A (en) * | 2019-12-20 | 2020-05-08 | 贵州电网有限责任公司 | Device and method for detecting air tightness of oil conservator |
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| CN2206371Y (en) * | 1994-12-30 | 1995-08-30 | 刘春祥 | Locknut |
| US5992242A (en) * | 1998-05-04 | 1999-11-30 | Lsi Logic Corporation | Silicon wafer or die strength test fixture using high pressure fluid |
| CN201092018Y (en) * | 2007-10-19 | 2008-07-30 | 贾树伟 | Adjustable spanner for plastic cover switch of automobile fuel-tank |
| CN201593207U (en) * | 2009-12-29 | 2010-09-29 | 钱崑 | Self-reaction force balance load box testing platform |
| CN201697768U (en) * | 2010-07-06 | 2011-01-05 | 重庆理工大学 | Inflatable air bag type sealed container leakage detector |
| CN103558085B (en) * | 2013-11-06 | 2015-08-19 | 上海交通大学 | The safety detection method of air-bag for ship deflection and interior pressure and bearing capacity |
| CN106017829A (en) * | 2016-07-29 | 2016-10-12 | 苏州誉衡兴自动化科技有限公司 | Automatic detection device for air bag |
| CN108414356B (en) * | 2018-04-10 | 2021-06-22 | 郑州易蓝净清洁用品有限公司 | Detection machine for bearing of central vertical point of capsule rubber weight-reducing body |
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