CN115076193A - Pressure measuring sealing locking device and locking method for bottom of connecting rod type storage box - Google Patents
Pressure measuring sealing locking device and locking method for bottom of connecting rod type storage box Download PDFInfo
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- CN115076193A CN115076193A CN202210758457.3A CN202210758457A CN115076193A CN 115076193 A CN115076193 A CN 115076193A CN 202210758457 A CN202210758457 A CN 202210758457A CN 115076193 A CN115076193 A CN 115076193A
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- 238000003860 storage Methods 0.000 title claims abstract description 160
- 238000007789 sealing Methods 0.000 title claims abstract description 95
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000003825 pressing Methods 0.000 claims abstract description 74
- 238000012360 testing method Methods 0.000 claims abstract description 19
- 238000006073 displacement reaction Methods 0.000 claims abstract description 15
- 230000000694 effects Effects 0.000 claims abstract description 12
- 230000006835 compression Effects 0.000 claims description 42
- 238000007906 compression Methods 0.000 claims description 42
- 238000001514 detection method Methods 0.000 claims description 13
- 238000009530 blood pressure measurement Methods 0.000 claims description 12
- 230000009471 action Effects 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000001125 extrusion Methods 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 5
- 238000009826 distribution Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000006748 scratching Methods 0.000 description 2
- 230000002393 scratching effect Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/06—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips
- F16B5/0607—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining sheets or plates to each other
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2/00—Friction-grip releasable fastenings
- F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
- F16B2/14—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening using wedges
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/10—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of bayonet connections
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/061—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with positioning means
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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
Abstract
The invention belongs to the technical field of civil aerospace, and relates to a pressure measuring sealing locking device for the bottom of a connecting rod type storage box, which comprises: the invention also discloses a pressure measuring sealing locking method; the invention achieves the purpose of sealing and locking the bottom of the storage tank and the bottom plate by up-down extrusion through horizontally extending and inward movement of the wedge-shaped pressing block in the connecting rod type locking device and taper fit extrusion and changing large displacement and small thrust in the horizontal direction into small displacement and large thrust in the vertical direction, and can test the bottom of the storage tank after sealing and locking are completed, thereby avoiding the problems of difficult sealing control effect and high labor intensity of sealing adjustment, large workload, long working time, time and labor waste and low efficiency caused by repeated continuous adjustment one by one in sequence.
Description
Technical Field
The invention belongs to the technical field of civil aerospace, and relates to a pressure-measuring sealing locking device and a locking method for the bottom of a connecting rod type storage box.
Background
The current civil aerospace field is gradually started and forms a certain scale, and the carrier rocket also meets the leap-type development opportunity just before the air, thereby having wide and deep promotion significance for the experimental research of the carrier rocket. The storage tank is an important component of a carrier rocket, the tightness and the stability and the reliability of a tank bottom structure are critical, so that the airtight hydraulic detection of the tank bottom is an important process, and the tank bottom hydraulic airtight equipment is one of the keys of products in the aerospace field for ensuring the performance of the storage tank to reach a high level.
One of the sealed locking device of current storage tank bottom of the case pressure measurement of carrier rocket is with servo motor control pull-down lead screw in groups at present, and the lead screw drives the clip, locks the clamping ring to fixed bottom of the case, however because easy lead screw grinds to die, the adjustment is hardly target in place, and slight adjustment volume hardly controls sealed effect. The other pressure measuring sealing and locking device adopts the following technical scheme that a plurality of large bolts are screwed down by a circle to lock the compression ring, so that the bottom of the box is fixed, and the device has the following defects: the labor intensity is high, the workload is high, if sealing leakage exists, the problem that the sealing leakage is difficult to solve immediately is solved, the bolt is very complicated to screw, the working time is very long, and continuous adjustment is needed repeatedly and continuously one by one, so that the time and the labor are wasted, and the efficiency is low. In addition, the existing pressure measuring sealing locking device is required to completely inflate or fill the spherical space in the bottom of the storage tank, so that the pressure measuring preparation time of inflation and water filling consumes longer time and the efficiency is low.
Therefore, a pressure measuring and sealing locking device for the bottom of a storage box of a carrier rocket, which has the advantages of high speed, high efficiency, good sealing effect, time and labor saving, simple operation and short preparation time, is needed to solve the problem.
Disclosure of Invention
The technical scheme adopted by the invention for solving the technical problem is as follows: a pressure measuring and sealing locking device for the bottom of a connecting rod type storage box comprises: a pressure-bearing tire, a pressure ring and a connecting rod type locking device;
the pressure-bearing tire is of an upward convex hemispherical shape, an annular buckling edge extending horizontally and outwards is arranged at the opening edge of the hemispherical surface of the pressure-bearing tire, the annular buckling edge surrounds the hemispherical surface of the pressure-bearing tire for a circle, an upward convex annular boss is arranged at the edge of the upper surface of the annular buckling edge, the annular outer side wall of the annular boss is equal to the inner diameter of a box opening of the bottom of the storage box, the outer diameter of the hemispherical surface of the pressure-bearing tire is smaller than the inner diameter of a spherical surface of the bottom of the storage box, an annular upper sealing groove which is inwards concave along the radial direction is arranged at the upper part of the annular outer side wall of the annular boss, an annular upper sealing ring is arranged in the upper sealing groove, the pressure-bearing tire, the annular buckling edge, the annular boss and the storage box bottom rotate together, and the pressure-bearing tire, the annular buckling edge and the annular boss are connected in a sealing manner;
the compression ring is annular, the outer diameter of the compression ring is equal to the outer diameter of the annular buckling edge, the inner diameter of the compression ring is smaller than the outer diameter of the step at the edge of the bottom of the storage tank and larger than the spherical outer diameter of the bottom of the storage tank, the top surface of the compression ring is provided with a first taper with gradually reduced thickness along the radial direction, and the compression ring and the bottom of the storage tank rotate around the same shaft;
the connecting rod type locking device comprises a wedge-shaped pressing block, a connecting rod, a swinging rod, a telescopic rod and a seat frame, wherein an inwards concave arc-shaped groove is horizontally arranged on one side of the wedge-shaped pressing block facing the bottom of the storage box, the opening radian of the arc-shaped groove is the same as the outer diameter radian of the steps at the edge, a second taper with gradually reduced height and size of the groove opening is arranged on the top surface of the arc-shaped groove along the direction from the groove opening to the groove bottom, the first taper is matched with the second taper, the height of the groove opening of the arc-shaped groove in the vertical direction is greater than the sum of the edge thickness of the compression ring and the edge thickness of the annular buckling edge, the height of the groove bottom of the arc-shaped groove in the vertical direction is less than the sum of the edge thickness of the compression ring and the edge thickness of the annular buckling edge, the connecting rod and the swinging rod are both straight rods, the upper surface of the seat frame is horizontal, one end of the swinging rod is hinged and connected with the upper surface of the seat frame through a first hinged support, the other end of the swinging rod is hinged and connected with one end of the wedge-shaped pressing block through a third hinged support, the second hinged support point is hinged to the telescopic end of the telescopic rod, the fixed end of the telescopic rod is hinged to the lower portion of the seat frame through the fourth hinged support point, a rotating shaft of the fourth hinged support point is parallel to a rotating shaft of the second hinged support point and is located in the same vertical plane, the second hinged support point is driven to move up and down when the telescopic rod is stretched to drive the connecting rod and the swing rod to bend and straighten in a reciprocating mode around the second hinged support point, and the connecting rod and the swing rod bend in a reciprocating mode and straighten in a reciprocating mode to drive one side of an arc-shaped groove of the connecting rod push-pull wedge-shaped pressing block to slide in a reciprocating mode in a radial direction on the upper surface of the seat frame towards the rotating shaft direction of the bottom of the storage box;
the annular buckling edge of the pressure-bearing tire is buckled with the bottom of the storage tank and then forms a closed thin hemispherical space inside the bottom of the storage tank, the pressure ring is sleeved and buckled on the step at the edge, a plurality of connecting rod-type locking devices are arranged, the plurality of connecting rod-type locking devices are uniformly distributed around the outer circumference of the pressure-bearing tire, the wedge-shaped pressing blocks of the plurality of connecting rod-type locking devices press the pressure ring to one side of the annular buckling edge when sliding towards the direction of a rotating shaft of the bottom of the storage tank simultaneously so as to achieve the effect of sealing and pressing the bottom of the storage tank, and the upper sealing ring seals a gap between the annular outer edge of the annular boss and the inner diameter of a tank opening of the bottom of the storage tank; the storage tank bottom and the pressure-bearing tire are sealed and locked by up-down extrusion through the fact that the plurality of surrounding connecting rod type locking devices move towards the circle center along the radial direction and are extruded in a taper fit mode, and the large displacement and small thrust in the horizontal direction are changed into the small displacement and large thrust in the vertical direction, and the storage tank bottom and the pressure-bearing tire can be tested after sealing and locking are completed; compared with the conventional method for pressurizing the inner repair space at the bottom of the whole storage box, the sealed thin hemispherical space is greatly reduced, so that the hemispherical pressure-bearing tire is beneficial to reducing the pressurizing time and increasing the detection efficiency.
Preferably, the bottom of the seat frame is fixedly connected with a sliding block, the sliding block is connected with a sliding rail in a sliding manner, the sliding rail is horizontally and radially laid, the bottom of the seat frame is provided with a lock catch for locking the displacement trend between the seat frame and the sliding rail, and the inward end of the sliding rail faces to a rotating shaft at the bottom of the storage box; the radial position of the connecting rod type locking device is adjusted when the sliding rail and the sliding block are used for the bottoms of the storage boxes with different sizes, so that the invention can be suitable for the bottoms of the storage boxes with different sizes to carry out pressure measurement, sealing and locking, and has better universal applicability.
Preferably, 4 to 16 connecting rod type locking devices are arranged, the number of the connecting rod type locking devices is selected according to different pressure tests and the requirements of the bottoms of the storage boxes with different sizes, and odd number of average stress tests with better staggered distribution or even number of symmetrical balance tests with better symmetrical distribution can be selected.
Preferably, the junction of the annular outer side wall of the annular boss and the upper surface of the annular buckling edge is provided with an annular lower sealing groove, a lower sealing ring is arranged in the lower sealing groove, the lower sealing groove and the bottom of the storage tank are the same in rotating shaft, and the lower sealing groove and the lower sealing ring are matched to better seal a gap between the pressure bearing tire and the bottom of the storage tank, so that the requirement of higher sealing performance test is met.
Preferably, the compression ring is divided into an upper compression ring and a lower compression ring which are vertically superposed, an upper concave ring groove is arranged on the bottom surface of the upper compression ring, an upper convex ring platform is arranged on the top surface of the lower compression ring, the upper ring groove, the upper ring platform and the compression ring share a rotating shaft, the upper ring platform is matched with the upper ring groove, the upper ring groove is buckled on the upper ring platform, the inner diameter of the upper compression ring is smaller than the outer diameter of the edge step of the bottom of the storage tank and larger than the spherical outer diameter of the bottom of the storage tank, the inner diameters of the lower compression ring, the upper ring platform and the lower ring platform are all larger than the outer diameter of the edge step, a lower concave ring groove is arranged on the bottom surface of the lower compression ring, an upper convex lower ring platform is arranged on the top surface of the annular buckling edge, the lower ring platform is matched with the lower ring groove, and the lower ring groove is buckled on the lower ring platform; the upper pressure ring surrounds and clamps the upper ring platform through the upper ring groove to play a role in providing a horizontal radial inward supporting force for the lower pressure ring, and the lower pressure ring surrounds and clamps the lower ring platform through the lower ring groove to provide a horizontal radial inward supporting force for the annular buckling edge.
Preferably, the lower pressing ring is connected with the top surface of the annular buckling edge through a pin shaft in the vertical direction; the lower pressing ring and the annular buckling edge which are connected through the pin shaft can provide better horizontal supporting force along the radial direction inwards for the annular buckling edge.
Preferably, one end of the upper surface of the seat frame, which is far away from the wedge-shaped pressing block, is fixedly connected with a support, the first hinge point is positioned on the support, and the first hinge point and the third hinge point are positioned on the same horizontal plane; the first hinge fulcrum and the third hinge fulcrum on the same horizontal plane enable the swing rod to swing to push the connecting rod to achieve a maximum thrust when the connecting rod is in a horizontal position, at the moment, the connecting rod is turned from inclined to horizontal, maximum pressure and minimum displacement are provided for the wedge-shaped pressing block, the pressing ring is convenient to press the step at the edge of the bottom of the storage box, and better locking and sealing are provided for the buckling position of the bottom of the storage box and the pressure bearing tire.
Preferably, the bottom surface of the annular buckle edge is provided with a blind hole, the upper surface of the seat frame is provided with a pin hole, the blind hole and the pin hole have the same aperture and are connected through a pin from bottom to top; the pin connection has the effects of positioning the pressure-bearing tire during prepositioning and providing better rigidity for the pressure-bearing tire during pressurizing in a closed thin hemispherical space between the pressure-bearing tire and the bottom of the storage box.
The invention also discloses a pressure measuring sealing locking method for the bottom of the connecting rod type storage box, which uses the pressure measuring sealing locking device and comprises the following steps:
the method comprises the following steps: moving a plurality of seat frames which are uniformly distributed around to a pressing position according to the size of the bottom of the storage box which needs to be subjected to pressure measurement, sealing and locking, and driving a telescopic rod to extend out so that a wedge-shaped pressing block is in an opening state of moving outwards along the radial direction;
step two: the pressure-bearing tire falls down and is placed on the upper surface of the seat frame and is pre-positioned, so that the bottom surface of the annular buckling edge is placed on the upper surface of the seat frame, and the pin hole and the blind hole are connected through a pin from bottom to top;
step three: an opening at the bottom of the storage box is placed downwards on a pressure bearing tire, so that the inner diameter of a box opening at the bottom of the storage box is sleeved and buckled on a hemispherical surface of the pressure bearing tire from top to bottom, and a closed thin hemispherical space is formed inside the bottom of the storage box;
step four: sleeving a pressure ring on a step at the edge of the bottom of the storage box from top to bottom;
step five: the telescopic rod is driven to contract, so that the wedge-shaped pressing block horizontally extends and radially moves inwards, the pressing ring is extruded along the tapered inclined plane through the first taper and the second taper which are matched with each other, and the pressing ring is stressed to vertically move downwards so that the opening surface of the bottom of the storage box is tightly attached to the upper surface of the annular buckling edge;
step six: after a closed thin hemispherical space is formed inside the bottom of the storage tank, pressurizing the closed space inside the bottom of the storage tank, and then carrying out airtight hydraulic detection;
step seven: carrying out pressure relief after the airtight hydraulic detection is finished;
step eight: and unlocking the bottom of the storage box after pressure relief is finished, wherein the unlocking action steps are opposite to the steps from the first step to the fifth step.
Preferably, in the step, when the specification and the size of the storage tank bottom are changed for testing, the position of each seat frame is adjusted and locked along the sliding rail according to different storage tank bottoms, and then different pressure bearing tires, pressure rings and lower sealing rings are changed.
The invention has the beneficial effects that:
1. the invention achieves the purpose of sealing and locking the bottom of the storage tank and the bottom plate by means of up-down extrusion through the horizontal extension and inward movement of the wedge-shaped pressing block in the connecting rod type locking device and the taper fit extrusion, and changes the large displacement and small thrust in the horizontal direction into the small displacement and large thrust in the vertical direction, and the bottom of the storage tank can be tested after the sealing and locking are completed, and the bottom of the storage tank can be finally sealed for sealing and pressure measurement, so that the problems that the sealing effect is difficult to control when the storage tank is sealed and locked in the past pressure measurement, the sealing adjustment labor intensity is high, the workload is large, the working time is very long, the sealing adjustment is required to be repeatedly and continuously adjusted one by one and another, the time and labor are wasted, and the efficiency is low are solved.
2. According to the invention, after the hemispherical pressure-bearing tire is buckled with the bottom of the storage tank, water or air is filled in the thin hemispherical space between the bottom of the storage tank and the pressure-bearing tire, and a compression strength test or an air tightness test is carried out, so that the sealed thin hemispherical space is greatly reduced compared with the conventional compression space for compressing the inner repairing space of the whole bottom of the storage tank, and therefore, the hemispherical pressure-bearing tire is beneficial to reducing the compression time and increasing the detection efficiency.
Drawings
FIG. 1 is an isometric view of a locking state of a pressure-measuring sealing locking device and a locking method for the bottom of a connecting rod type storage box;
FIG. 2 is an isometric view in an open state;
FIG. 3 is a front view of the locked state;
FIG. 4 is a top view of the locked state;
FIG. 5 is a front cross-sectional view of the locked state;
FIG. 6 is a front sectional view of the open state;
FIG. 7 is a partial view;
FIG. 8 is a view showing a disassembled structure of the pressing ring;
FIG. 9 is a front cross-sectional view of the latch after it has been locked.
In the figure: 1. a pressure-bearing tire; 2. pressing a ring; 3. a link-type locking device; 4. the bottom of the storage box; 101. an annular buckle edge; 102. an annular boss; 103. an upper seal groove; 104. an upper sealing ring; 105. a lower seal groove; 106. a lower seal ring; 107. blind holes; 201. a first taper; 202. pressing a ring; 203. a lower pressure ring; 204. an upper ring groove; 205. a ring mounting table; 206. a lower ring groove; 207. a lower ring table; 301. a wedge-shaped pressing block; 302. a connecting rod; 303. a swing rod; 304. a telescopic rod; 305. a seat frame; 306. an arc-shaped slot; 307. a second taper; 308. a first hinge pivot point; 309. a second hinge pivot; 310. a third hinge pivot; 311. a fourth hinge pivot; 312. a slider; 313. a slide rail; 314. locking; 315. a support; 316. a pin hole; 401. an edge step.
Detailed Description
The related art in the present invention will be described clearly and completely with reference to the accompanying drawings in the following embodiments, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 8, a pressure measuring sealing locking device and a locking method for the bottom of a connecting rod type storage box comprise: the device comprises a pressure-bearing tire 1, a pressure ring 2 and a connecting rod type locking device 3;
the pressure-bearing tire 1 is of an upward convex hemispherical shape, an annular buckling edge 101 which horizontally extends outwards is arranged at the opening edge of the hemispherical surface of the pressure-bearing tire 1, the annular buckling edge 101 surrounds the hemispherical surface of the pressure-bearing tire 1 for a circle, an upward convex annular boss 102 is arranged at the edge of the upper surface of the annular buckling edge 101, the annular outer side wall of the annular boss 102 is equal to the inner diameter of a tank opening of the tank bottom 4 of the storage tank, the outer diameter of the hemispherical surface of the pressure-bearing tire 1 is smaller than the spherical inner diameter of the tank bottom 4 of the storage tank, an annular upper sealing groove 103 which is inwards concave along the radial direction is arranged at the upper part of the annular outer side wall of the annular boss 102, an annular upper sealing ring 104, the pressure-bearing tire 1, the annular buckling edge 101 and the annular boss 102 are arranged in the upper sealing groove 103, the upper sealing groove 103 and the storage tank bottom 4 are in the same rotating shaft, the bearing tire 1, the annular buckling edge 101 and the annular boss 102 are in sealing connection, and the upper sealing ring 104 can also be used for preventing the tank bottom of the storage tank bottom 4 from colliding or scratching the inner wall in the descending and falling process;
the compression ring 2 is annular, the outer diameter of the compression ring 2 is equal to the outer diameter of the annular buckling edge 101, the inner diameter of the compression ring 2 is smaller than the outer diameter of the edge step 401 of the storage tank bottom 4 and larger than the spherical outer diameter of the storage tank bottom 4, the top surface of the compression ring 2 is provided with a first taper 201 with gradually reduced thickness along the radial direction, and the compression ring 2 and the storage tank bottom 4 rotate together;
the connecting rod type locking device 3 comprises a wedge-shaped pressing block 301, a connecting rod 302, a swing rod 303, a telescopic rod 304 and a seat frame 305, wherein an inwards concave arc-shaped groove 306 is horizontally arranged on one side of the wedge-shaped pressing block 301 facing the bottom 4 of the storage box, the opening radian of the arc-shaped groove 306 is the same as the outer diameter radian of the edge step 401, a second taper 307 with the gradually reduced groove opening height is arranged on the top surface of the arc-shaped groove 306 along the direction from the groove opening to the groove bottom, the first taper 201 is matched with the second taper 307, the height of the groove opening of the arc-shaped groove 306 in the vertical direction is greater than the sum of the edge thickness of the pressing ring 2 and the edge thickness of the annular buckling edge 101, the height of the groove bottom of the arc-shaped groove 306 in the vertical direction is less than the sum of the edge thickness of the pressing ring 2 and the edge thickness of the annular buckling edge 101, the connecting rod 302 and the swing rod 303 are straight rods, the upper surface of the seat frame 305 is horizontal, one end of the swing rod 303 is hinged and connected with the upper surface of the seat frame 305 through a first hinge fulcrum 308, the other end of the swing rod 303 is hinged and connected with one end of the connecting rod 302 through a second hinge point 309, the other end of the connecting rod 302 is hinged and connected with the wedge-shaped pressing block 301 through a third hinge fulcrum 310, the second hinge fulcrum 309 is hinged and connected to the telescopic end of the telescopic rod 304, the fixed end of the telescopic rod 304 is hinged and connected to the lower portion of the seat frame 305 through a fourth hinge fulcrum 311, the rotating shaft of the fourth hinge fulcrum 311 is parallel to the rotating shaft of the second hinge fulcrum 309 and located in the same vertical plane, the telescopic rod 304 drives the second hinge fulcrum 309 to move up and down when telescopic, the connecting rod 302 and the swing rod 303 are driven to bend and straighten in a reciprocating manner around the second hinge fulcrum 309, and the connecting rod 302 and the swing rod 303 are bent and straightened in a reciprocating manner, so that the connecting rod 302 is driven to push and pull one side of the arc-shaped groove 306 of the wedge-shaped pressing block 301 to move in a reciprocating manner along the radial direction of the rotating shaft of the bottom 4 of the storage box in the upper surface of the seat frame 305; the telescopic rod 304 can be selected to realize extension by using a hydraulic cylinder, an air cylinder, an electric cylinder and a screw rod, wherein only the top surface of the compression ring 2 is provided with a ring inclined surface with a first taper 201, and the matched bottom surface of the annular buckling edge 101 on the pressure-bearing tire 1 adopts a flat surface, so that the locking force of the wedge-shaped pressing block 301 is effectively reduced, and a good locking effect is also achieved; the inclined wedge of the wedge-shaped pressing block 301 is recommended to adopt an inclined angle below 5 degrees, so that the self-locking effect is achieved;
after the annular buckling edge 101 of the pressure-bearing tire 1 is buckled with the bottom 4 of the storage tank, a closed thin hemispherical space is formed inside the bottom 4 of the storage tank, the pressure ring 2 is sleeved and buckled on the edge step 401, a plurality of connecting rod type locking devices 3 are arranged, the connecting rod type locking devices 3 are uniformly distributed on the outer circumference of the pressure-bearing tire 1 in a surrounding manner, the wedge-shaped pressing blocks 301 of the connecting rod type locking devices 3 simultaneously slide towards the direction of a rotating shaft of the bottom 4 of the storage tank to press the pressure ring 2 to one side of the annular buckling edge 101 to achieve the effect of sealing and pressing the bottom 4 of the storage tank, and the upper sealing ring 104 seals a gap between the annular outer edge of the annular boss 102 and the inner diameter of a tank opening of the bottom 4 of the storage tank; the plurality of the connecting rod type locking devices 3 which are surrounded move towards the circle center in the radial direction and are extruded by taper fit, the large displacement and small thrust in the horizontal direction are changed into the small displacement and large thrust in the vertical direction, the aim of sealing and locking the bottom 4 of the storage tank and the pressure-bearing tire 1 by up-and-down extrusion is achieved, the bottom 4 of the storage tank can be tested after sealing and locking are completed, water or air is filled in a thin hemispherical space between the bottom 4 of the storage tank and the pressure-bearing tire 1, a compression strength test or an air tightness test is carried out, the pressure-filling space is greatly reduced compared with the pressure-filling space which is needed to fill the whole inner space of the bottom 4 of the storage tank, and therefore the hemispherical pressure-bearing tire 1 is beneficial to reducing the pressure-filling time and increasing the detection efficiency.
Further, the bottom of the seat frame 305 is fixedly connected with a sliding block 312, the sliding block 312 is slidably connected with a sliding rail 313, the sliding rail 313 is horizontally and radially laid, the bottom of the seat frame 305 is provided with a lock 314 for locking the displacement trend between the seat frame 305 and the sliding rail 313, and the inward end of the sliding rail 313 faces the rotating shaft of the tank bottom 4; the slide rails 313 and the slide blocks 312 are used for adjusting the radial position of the connecting rod type locking device 3 when the storage tank bottoms 4 with different sizes are used, so that the invention can be suitable for pressure measurement, sealing and locking of the storage tank bottoms 4 with different sizes, and has better universal applicability.
Furthermore, 4 to 16 connecting rod type locking devices are arranged, the number of the connecting rod type locking devices 3 is selected according to different pressure tests and the requirements of the storage box bottoms 4 with different sizes, and odd number of average stress tests with better staggered distribution or even number of symmetrical balance tests with better symmetrical distribution can be selected.
Furthermore, an annular lower sealing groove 105 is formed in the joint of the annular outer side wall of the annular boss 102 and the upper surface of the annular buckling edge 101, a lower sealing ring 106 is arranged in the lower sealing groove 105, the lower sealing groove 105 and the storage tank bottom 4 rotate together, and the lower sealing groove 105 and the lower sealing ring 106 are matched to better seal a gap between the pressure-bearing tire 1 and the storage tank bottom 4, so that the requirement of higher sealing performance test is met.
Further, the press ring 2 is divided into an upper press ring 202 and a lower press ring 203 which are superposed up and down, an upper concave ring groove 204 is arranged on the bottom surface of the upper press ring 202, an upper convex ring platform 205 is arranged on the top surface of the lower press ring 203, the upper ring groove 204, the upper ring platform 205 and the press ring 2 rotate together, the upper ring platform 205 is matched with the upper ring groove 204, the upper ring groove 204 is buckled on the upper ring platform 205, the inner diameter of the upper press ring 202 is smaller than the outer diameter of the edge step 401 of the storage tank bottom 4 and larger than the spherical outer diameter of the storage tank bottom 4, the inner diameters of the lower press ring 203, the upper ring groove 204 and the upper ring platform 205 are all larger than the outer diameter of the edge step 401, a lower concave ring groove 206 is arranged on the bottom surface of the lower press ring 203, a convex lower ring platform 207 is arranged on the top surface of the annular buckle edge 101, the lower ring platform 207 is matched with the lower ring groove 206, and the lower ring groove 206 is buckled on the lower ring platform 207; the upper pressing ring 202 surrounds and clamps the upper ring platform 205 through the upper ring groove 204 to provide a horizontal radial inward supporting force for the lower pressing ring 203, and the lower pressing ring 203 surrounds and clamps the lower ring platform 207 through the lower ring groove 206 to provide a horizontal radial inward supporting force for the annular buckling edge 101, so that when the pressure-bearing tire 1 is pressurized in a closed thin hemispherical space between the pressure-bearing tire 1 and the bottom 4 of the storage tank, the annular buckling edge 101 is subjected to the radial inward supporting force sequentially transmitted by the upper pressing ring 202 and the lower pressing ring 203, the deformation generated by the pressure-bearing tire 1 can be effectively counteracted, and better protection is provided for the pressurizing test of the bottom 4 of the storage tank.
Furthermore, the lower pressing ring 203 is connected with the top surface of the annular buckling edge 101 through a pin shaft in the vertical direction; the lower pressing ring 203 and the annular buckling edge 101 under the pin shaft connection can provide better horizontal supporting force inwards in the radial direction for the annular buckling edge 101.
Further, one end of the upper surface of the seat frame 305, which is far away from the wedge-shaped pressing block 301, is fixedly connected with a bracket 315, the first hinge point 308 is located on the bracket 315, and the first hinge point 308 and the third hinge point 310 are located on the same horizontal plane; the first hinge point 308 and the third hinge point 310 on the same horizontal plane enable the swing rod 303 to swing to push the connecting rod 302 to achieve a maximum pushing force when the connecting rod 302 is in a horizontal position, at the moment, the connecting rod 302 is turned from inclining to being horizontal, maximum pressure and minimum displacement are provided for the wedge-shaped pressing block 301, so that the pressing ring 2 can press the edge step 401 of the storage tank bottom 4 conveniently, and better locking and sealing are provided for the buckling position of the storage tank bottom 4 and the pressure-bearing tire 1.
Furthermore, a blind hole 107 is formed in the bottom surface of the annular buckle edge 101, a pin hole 316 is formed in the upper surface of the seat frame 305, the blind hole 107 and the pin hole 316 have the same aperture and are connected through a pin from bottom to top; the pin connection has the effects of positioning the pressure-bearing tire 1 during prepositioning and providing better rigidity for the pressure-bearing tire 1 when a sealed thin hemispherical space between the pressure-bearing tire 1 and the bottom 4 of the storage box is pressurized.
The invention also discloses a pressure measuring sealing locking method for the bottom of the connecting rod type storage box, which uses the pressure measuring sealing locking device and comprises the following steps:
the method comprises the following steps: according to the size of the bottom 4 of the storage box which needs to be subjected to pressure measurement, sealing and locking, a plurality of seat frames 305 which are uniformly distributed around are moved to a pressing position, and a telescopic rod 304 is driven to extend out, so that the wedge-shaped pressing block 301 is in an opening state of moving outwards along the radial direction;
step two: the pressure-bearing tire 1 is dropped into the upper surface of the seat frame 305 and is pre-positioned, so that the bottom surface of the annular buckle edge 101 is placed on the upper surface of the seat frame 305, and the pin hole 316 and the blind hole 107 are connected through pins from bottom to top;
step three: an opening of a storage tank bottom 4 is placed downwards on the pressure bearing tire 1, so that the inner diameter of a tank opening of the storage tank bottom 4 is sleeved and buckled on a hemispherical surface of the pressure bearing tire 1 from top to bottom, and a closed thin hemispherical space is formed inside the storage tank bottom 4;
step four: sleeving the compression ring 2 on an edge step 401 of the bottom 4 of the storage box from top to bottom;
step five: the telescopic rod 304 is driven to contract, so that the wedge-shaped pressing block 301 horizontally extends and radially moves inwards, the pressing ring 2 is extruded along the tapered inclined plane through the first taper 201 and the second taper 307 which are matched with each other, and the pressing ring 2 is stressed to vertically move downwards so that the opening surface of the bottom 4 of the storage box is tightly attached to the upper surface of the annular buckling edge 101;
step six: after a closed thin hemispherical space is formed inside the storage box bottom 4, the closed space inside the storage box bottom 4 is pressurized, and then airtight hydraulic detection is carried out;
step seven: carrying out pressure relief after the airtight hydraulic detection is finished;
step eight: and unlocking the bottom 4 of the storage box after pressure relief is finished, wherein the unlocking action steps are opposite to the steps from the first step to the fifth step.
Further, in the step, when the specification and the size of the storage tank bottom 4 are changed for testing, the position of each seat frame 305 is adjusted and locked along the slide rail 313 according to different storage tank bottoms 4, and then different pressure-bearing tires 1, pressure rings 2 and lower sealing rings 106 are changed.
Examples
In this embodiment, when the pressure is to be measured on the bottom 4 of the storage tank, firstly, the 16 seat frames 305 uniformly distributed around the storage tank are moved to the compression position according to the size of the bottom 4 of the storage tank which needs to be subjected to pressure measurement, sealing and locking, and the telescopic rod 304 is driven to extend, so that the wedge-shaped pressing block 301 is in an open state moving outwards along the radial direction; secondly, the pressure-bearing tire 1 falls down and is placed on the upper surface of the seat frame 305 and is connected with a pin of the blind hole 107 from bottom to top for prepositioning through the pin hole 316, the pressure-bearing tire 1 is positioned, the pressure-bearing tire 1 is prevented from displacing on the seat frame 305 when the storage tank bottom 4 falls down, and better rigidity is provided for the pressure-bearing tire 1 when a closed thin hemispherical space between the pressure-bearing tire 1 and the storage tank bottom 4 is pressurized; thirdly, an opening of the bottom 4 of the storage tank is placed downwards on the pressure-bearing tire 1, so that the inner diameter of a tank opening of the bottom 4 of the storage tank is sleeved and buckled on the annular outer side wall of the annular boss 102 from top to bottom, and the bottom of the bottom 4 of the storage tank is prevented from colliding or scratching the inner wall in the descending and setting process through the upper sealing ring 104; fourthly, the compression ring 2 is sleeved on the edge step 401 of the bottom 4 of the storage box from top to bottom, the upper edge of the compression ring 2 and the lower edge of the pressure-bearing tire 1 are respectively aligned with the upper surface and the lower surface of the notch of the arc-shaped groove 306 of the wedge-shaped pressure block 301, the upper compression ring 202 surrounds the clamping upper ring platform 205 through the upper ring groove 204 to provide a horizontal radial inward supporting force for the lower compression ring 203, the lower compression ring 203 surrounds the clamping lower ring platform 207 through the lower ring groove 206 to provide a horizontal radial inward supporting force for the annular buckling edge 101, therefore, when the pressure-bearing tire 1 is pressurized and is about to generate deformation, the annular buckling edge 101 can effectively counteract the deformation generated by the radial inward supporting force sequentially transmitted by the upper compression ring 202 and the lower compression ring 203, and better protection is provided for the pressure-charging test of the bottom 4 of the storage box; fifthly, the telescopic rod 304 is driven to contract, so that the wedge-shaped pressing block 301 horizontally extends and radially moves inwards, the pressing ring 2 is extruded along the tapered inclined plane through the first taper 201 and the second taper 307 which are matched with each other, the pressing ring 2 is stressed to vertically move downwards, so that the opening surface of the bottom 4 of the storage box is tightly attached to the upper surface of the pressure-bearing tire 1, and a closed thin hemispherical space is formed inside the bottom 4 of the storage box; sixthly, after a closed space is formed inside the storage box bottom 4; the method comprises the steps of pressurizing a sealed thin hemispherical space inside a storage tank bottom 4, then carrying out airtight hydraulic detection, filling water or inflating the sealed space between the storage tank bottom 4 and a pressure-bearing tire 1, and carrying out a pressurizing strength test or an airtight test, wherein the pressurized space is greatly reduced compared with the pressurized space which is needed to pressurize the inner repair space of the whole storage tank bottom 4, so that the hemispherical pressure-bearing tire 1 is beneficial to reducing pressurizing time and increasing detection efficiency; seventhly, pressure relief is carried out after airtight hydraulic detection is finished; and eighthly, unlocking the bottom 4 of the storage tank after pressure relief is finished, wherein the unlocking action steps are in reverse order to the locking steps.
In conclusion, the invention provides a pressure measuring, sealing and locking device and a locking method for the bottom of a connecting rod type storage tank, which achieve the aim of pressing and sealing and locking the bottom of the storage tank and a bottom plate up and down by horizontally extending and moving a wedge-shaped pressing block in the connecting rod type locking device inwards and extruding in a taper fit manner, changing large displacement and small thrust in the horizontal direction into small displacement and large thrust in the vertical direction, test the bottom of the storage tank after sealing and locking are finished, and finally seal the bottom of the storage tank so as to carry out sealing and pressure measurement, thereby avoiding the problems that the sealing effect is difficult to control when the previous pressure is measured and locked, the sealing adjustment has large labor intensity, the workload is large, the working time is long, the time and labor are wasted, and the efficiency is low because the previous pressure is repeatedly and continuously adjusted one by one, the invention has no need to be manually adjusted, has simple operation, convenience, stability and reliability, and greatly improves the production efficiency, the maintenance and use cost is reduced, so the invention has wide application prospect.
It is to be emphasized that: the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and all simple modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
Claims (10)
1. The utility model provides a sealed locking device of pressure measurement of connecting rod type storage tank bottom of the case which characterized in that includes: the device comprises a pressure bearing tire (1), a pressure ring (2) and a connecting rod type locking device (3);
the pressure-bearing tire (1) is of an upward convex hemispherical shape, an annular buckling edge (101) extending outwards in the horizontal direction is arranged at the opening edge of the hemispherical surface of the pressure-bearing tire (1), the annular buckling edge (101) surrounds the hemispherical surface of the pressure-bearing tire (1) for a circle, an annular boss (102) protruding upwards is arranged at the edge of the upper surface of the annular buckling edge (101), the annular outer side wall of the annular boss (102) is equal to the inner diameter of a box opening of the storage box bottom (4), the outer diameter of the hemispherical surface of the pressure-bearing tire (1) is smaller than the spherical inner diameter of the storage box bottom (4), an annular upper sealing groove (103) which is recessed along the radial direction is arranged on the upper portion of the annular outer side wall of the annular boss (102), an annular upper sealing ring (104) is arranged in the upper sealing groove (103), and the pressure-bearing tire (1), the annular buckling edge (101), the annular boss (102), the upper sealing groove (103) and the storage box bottom (4) rotate together, the pressure bearing tire (1), the annular buckling edge (101) and the annular boss (102) are connected in a sealing manner;
the compression ring (2) is annular, the outer diameter of the compression ring (2) is equal to that of the annular buckling edge (101), the inner diameter of the compression ring (2) is smaller than the outer diameter of the step (401) at the edge of the storage tank bottom (4) and larger than the spherical outer diameter of the storage tank bottom (4), the top surface of the compression ring (2) is provided with a first taper (201) with gradually reduced thickness along the radial direction, and the compression ring (2) and the storage tank bottom (4) rotate together;
the connecting rod type locking device (3) comprises a wedge-shaped pressing block (301), a connecting rod (302), a swing rod (303), a telescopic rod (304) and a seat frame (305), wherein the wedge-shaped pressing block (301) is horizontally provided with an inwards concave arc-shaped groove (306) towards one side of the bottom (4) of the storage box, the opening radian of the arc-shaped groove (306) is the same as the outer diameter radian of the edge step (401), the top surface of the arc-shaped groove (306) is provided with a second taper (307) with the height gradually reduced along the direction from the notch to the bottom of the groove, the first taper (201) is matched with the second taper (307), the height of the vertical direction of the notch of the arc-shaped groove (306) is greater than the sum of the edge thickness of the pressing ring (2) and the edge thickness of the annular buckling edge (101), the height of the vertical direction of the bottom of the arc-shaped groove (306) is less than the sum of the edge thickness of the pressing ring (2) and the edge thickness of the annular buckling edge (101), the connecting rod (302) and the swing rod (303) are straight rods, the upper surface of the seat frame (305) is horizontal, one end of the swing rod (303) is hinged and connected with the upper surface of the seat frame (305) through a first hinge fulcrum (308), the other end of the swing rod (303) is hinged and connected with one end of the connecting rod (302) through a second hinge fulcrum (309), the other end of the connecting rod (302) is hinged and connected with the wedge-shaped pressing block (301) through a third hinge fulcrum (310), the second hinge fulcrum (309) is hinged and connected with the telescopic end of the telescopic rod (304), the fixed end of the telescopic rod (304) is hinged and connected with the lower part of the seat frame (305) through a fourth hinge fulcrum (311), the rotating shaft of the fourth hinge fulcrum (311) is parallel to the rotating shaft of the second hinge fulcrum (309) and located in the same vertical plane, and the second hinge fulcrum (309) is driven to move up and down when the telescopic rod (304) stretches and bends to reciprocate around the second hinge fulcrum (309), so as to drive the connecting rod (302) and the swing rod (303) When the connecting rod (302) and the swing rod (303) are bent and straightened in a reciprocating manner, the connecting rod (302) is driven to push and pull one side of an arc-shaped groove (306) of the wedge-shaped pressing block (301) to slide in a reciprocating manner along the radial direction on the upper surface of the seat frame (305) towards the direction of a rotating shaft of the bottom (4) of the storage box;
the utility model discloses a bearing tyre, including bearing tyre (1), the annular of bearing tyre (1) is detained limit (101) and is gone up lock storage tank bottom of the case (4) back at storage tank bottom of the case (4) inside formation an inclosed thin hemisphere form space, clamping ring (2) cover is established to detain and is pressed on border step (401), connecting rod type locking device (3) are equipped with a plurality ofly, a plurality of connecting rod type locking device (3) encircle the equipartition in the outer circumference of bearing tyre (1), wedge briquetting (301) of a plurality of connecting rod type locking device (3) press clamping ring (2) to annular when sliding to the rotation axis direction of storage tank bottom of the case (4) one side in order to reach the effect that seals and compress tightly storage tank bottom of the case (4), go up the annular of sealing washer (104) sealed annular boss (102) outer along with the gap between the case mouth internal diameter of storage tank bottom of the case (4).
2. The pressure measuring and sealing locking device for the bottom of the tank of the link type storage tank according to claim 1, characterized in that a sliding block (312) is fixedly connected to the bottom of the seat frame (305), the sliding block (312) is slidably connected with a sliding rail (313), the sliding rail (313) is horizontally and radially laid, a lock catch (314) is arranged at the bottom of the seat frame (305) for locking the displacement trend between the seat frame (305) and the sliding rail (313), and the inward end of the sliding rail (313) faces the rotation axis of the tank bottom (4).
3. The bottom pressure measurement sealing locking device of the connecting rod type storage box according to claim 1, characterized in that the number of the connecting rod type locking devices (3) is 4 to 16.
4. The connecting rod type storage box bottom pressure measuring sealing locking device according to claim 1, characterized in that the joint of the annular outer side wall of the annular boss (102) and the upper surface of the annular buckling edge (101) is provided with an annular lower sealing groove (105), and a lower sealing ring (106) is arranged in the lower sealing groove (105).
5. The pressure measuring and sealing locking device for the bottom of the connecting rod type storage box according to claim 1, wherein the pressing ring (2) is divided into an upper pressing ring (202) and a lower pressing ring (203) which are stacked up from top to bottom, the bottom surface of the upper pressing ring (202) is provided with an upper concave ring groove (204), the top surface of the lower pressing ring (203) is provided with an upper convex ring platform (205), the upper ring groove (204), the upper ring platform (205) and the pressing ring (2) rotate together, the upper ring platform (205) is matched with the upper ring groove (204), the upper ring groove (204) is buckled on the upper ring platform (205), the inner diameter of the upper pressing ring (202) is smaller than the outer diameter of the step (401) of the storage box bottom (4) and larger than the spherical outer diameter of the storage box bottom (4), and the inner diameters of the lower pressing ring (203), the upper ring groove (204) and the upper ring platform (205) are larger than the outer diameter of the step (401), the bottom surface of lower clamping ring (203) is equipped with lower annular (206) of upper concave, the top surface of annular buckle limit (101) is equipped with lower ring platform (207) of epirelief, lower ring platform (207) and lower annular (206) phase-match, annular (206) lock is on lower ring platform (207) down.
6. The connecting rod type storage box bottom pressure measuring sealing locking device according to claim 5, characterized in that the lower pressing ring (203) is connected with the top surface of the annular buckling edge (101) through a pin shaft in the vertical direction.
7. The bottom pressure sealing and locking device for the connecting rod type storage box according to claim 1, characterized in that a bracket (315) is fixedly connected to one end of the upper surface of the seat frame (305) far away from the wedge-shaped pressing block (301), the first hinge point (308) is located on the bracket (315), and the first hinge point (308) and the third hinge point (310) are located on the same horizontal plane.
8. The pressure measuring and sealing locking device for the bottom of the connecting rod type storage box according to claim 1, characterized in that a blind hole (107) is formed in the bottom surface of the annular buckling edge (101), a pin hole (316) is formed in the upper surface of the seat frame (305), the blind hole (107) and the pin hole (316) have the same hole diameter, and the pin hole (316) and the blind hole (107) are connected through a pin from bottom to top.
9. A pressure measuring seal locking method for the bottom of a connecting rod type storage tank, which is characterized by using the pressure measuring seal locking device of any one of claims 1 to 8, and comprises the following steps:
the method comprises the following steps: according to the size of a storage box bottom (4) needing pressure measurement, sealing and locking, a plurality of seat frames (305) uniformly distributed in a surrounding mode are moved to a pressing position, a telescopic rod (304) is driven to extend out, and a wedge-shaped pressing block (301) is enabled to be in an opening state moving outwards in the radial direction;
step two: the pressure-bearing tire (1) is dropped into the upper surface of the seat frame (305) and is pre-positioned, so that the bottom surface of the annular buckling edge (101) is placed on the upper surface of the seat frame (305), and the pin hole (316) and the blind hole (107) are connected through a pin from bottom to top;
step three: an opening of the bottom (4) of the storage tank is placed downwards on the pressure-bearing tire (1), so that the inner diameter of a tank opening of the bottom (4) of the storage tank is sleeved and buckled on a hemispherical surface of the pressure-bearing tire (1) from top to bottom, and a closed thin hemispherical space is formed inside the bottom (4) of the storage tank;
step four: sleeving a compression ring (2) on an edge step (401) of the bottom (4) of the storage box from top to bottom;
step five: the telescopic rod (304) is driven to contract, so that the wedge-shaped pressing block (301) horizontally extends and moves inwards, the pressing ring (2) is extruded along the tapered inclined plane through the first taper (201) and the second taper (307) which are matched with each other, and the pressing ring (2) is stressed to vertically move downwards so that the opening surface of the bottom (4) of the storage box is tightly attached to the upper surface of the annular buckling edge (101);
step six: after a sealed thin hemispherical space is formed inside the storage tank bottom (4), the sealed space inside the storage tank bottom (4) is pressurized, and then airtight hydraulic detection is carried out;
step seven: carrying out pressure relief after the airtight hydraulic detection is finished;
step eight: and unlocking the bottom (4) of the storage box after pressure relief is finished, wherein the unlocking action steps are opposite to the steps from the first step to the fifth step.
10. The method for pressure measuring, sealing and locking the bottom of the connecting rod type storage tank box according to the claim 1, characterized in that in the step, when the specification and the size of the storage tank box (4) are changed for testing, the position of each seat frame (305) is adjusted along the slide rail (313) according to different storage tank box bottoms (4) and is locked, and then different pressure bearing tires (1), pressure rings (2) and lower sealing rings (106) are changed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210758457.3A CN115076193A (en) | 2022-06-30 | 2022-06-30 | Pressure measuring sealing locking device and locking method for bottom of connecting rod type storage box |
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| CN202210758457.3A CN115076193A (en) | 2022-06-30 | 2022-06-30 | Pressure measuring sealing locking device and locking method for bottom of connecting rod type storage box |
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| CN217603079U (en) * | 2022-06-30 | 2022-10-18 | 北京九天行歌航天科技有限公司 | Pressure measuring, sealing and locking device for bottom of connecting rod type storage box |
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| IT972204B (en) * | 1971-10-18 | 1974-05-20 | Guillet H | DEVICE FOR TIGHTENING A BROKEN RING AND FRAMES OF GLASSES EQUIPPED WITH THIS DEVICE |
| US6082676A (en) * | 1998-02-25 | 2000-07-04 | Kistler Aerospace Corporation | Cryogenic tanks for launch vehicles |
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