CN105666100B - One kind envelope pressure test machine - Google Patents
One kind envelope pressure test machine Download PDFInfo
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- CN105666100B CN105666100B CN201610183677.2A CN201610183677A CN105666100B CN 105666100 B CN105666100 B CN 105666100B CN 201610183677 A CN201610183677 A CN 201610183677A CN 105666100 B CN105666100 B CN 105666100B
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- central siphon
- plate
- steel pipe
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- 238000012360 testing method Methods 0.000 title claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 278
- 239000010959 steel Substances 0.000 claims abstract description 278
- 238000007789 sealing Methods 0.000 claims abstract description 130
- 230000006835 compression Effects 0.000 claims abstract description 12
- 238000007906 compression Methods 0.000 claims abstract description 12
- 238000000465 moulding Methods 0.000 claims abstract description 10
- 230000001737 promoting effect Effects 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 25
- 230000000694 effects Effects 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 55
- 238000000034 method Methods 0.000 description 7
- 230000011218 segmentation Effects 0.000 description 4
- 230000006698 induction Effects 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 239000000567 combustion gas Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
- B23P19/027—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same using hydraulic or pneumatic 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
- 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
- G01M3/28—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 for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2853—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 for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipe joints or seals
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Jet Pumps And Other Pumps (AREA)
- Joints Allowing Movement (AREA)
Abstract
The invention discloses one kind to seal pressure test machine, including main engine bed, air feed pump, block cylinder, compression cylinder, central siphon, limit base, connection supports frame, clamping piston bar is equipped with positioning plate, end socket piston rod is equipped with band moving frame, central siphon is equipped with modeling and manages outer end-plate, the outer end-plate of steel pipe, mould pipe exterior seal ring, steel pipe exterior seal ring, central siphon is equipped with the first air inlet, first air inlet is equipped with the first breather check valve, central siphon outer wall is equipped with the first baroceptor, the steel modeling crossover sub that connection supports frame is supported is between limit base and closure cylinder, the supply end of air feed pump is by air supply pipe with being connected inside central siphon.The beneficial effects of the invention are as follows：Reasonable integral structure, the positioning and clamping for moulding crossover sub to steel in place, can ensure leakproofness but will not press from both sides damage steel modeling crossover sub；With can automatic adjusument sealing structure, can strengthen hyperbar detection when sealing effect.
Description
Technical field
The invention belongs to the close property technical field of measurement and test of pipe fitting joint, more particularly to a kind of envelope pressure test machine.
Background technology
Steel moulds crossover sub, also known as PE steel modeling crossover sub, is widely used among current production, life, such as
Will be largely using steel modeling crossover sub in combustion gas, natural gas transportation pipeline（Outer combustion gas pipeline is mostly PE pipelines, into entering the room
It is generally inside steel pipe, needs to utilize steel modeling crossover sub in switching process）.Steel moulds crossover sub, itself includes lengths of steel pipes（One section
Steel pipe）With moulding pipeline section（Usually one section of PE pipe）, one end of lengths of steel pipes docks to form linkage section with moulding one end of pipeline section, linkage section
It is clamped and is formed with modeling pipeline section one end by lengths of steel pipes one end more, and is sealed using sealing ring（Linkage section would generally set one
A little concaveconvex structures coordinate clampings, and such as the flange in lengths of steel pipes and the card slot on modeling pipeline section mutually fasten, linkage section can also be set outside
Anchor ear is put further to be held tightly）, the front of motor of lengths of steel pipes is known as steel pipe end, and the front of motor for moulding pipeline section is known as moulding pipe end,
Modeling pipe end can be with waiting to dock modeling pipe（PE is managed）Welding, steel pipe end can be connected with steel tube screw thread to be docked, weld or pass through it
Its structure is docked.Since steel moulds crossover sub applied to gas, liquid transportation art, so its leakproofness needs
To guarantee, before dispatching from the factory, sealing propertytest is carried out to it.
When the prior art is detected steel modeling crossover sub, generally use gasket or sealing ring are placed in steel modeling conversion and connect
Head both ends（Steel pipe end and modeling pipe end）Outside, while with the force application apparatus such as jack or hydraulic cylinder be clamped in steel modeling crossover sub
Both ends, so that two ends of gasket or sealing ring and steel modeling crossover sub form and seal, the steel modeling after whole sealing is turned
Changing-over head is immersed in the water, then toward being passed through compressed gas and examine its sealing performance inside steel modeling crossover sub.
Above-mentioned test method has the disadvantages that：1st, operating process is complicated, its rack heavier-weight need to be by external equipment
Rack is immersed in the water, and the installation of steel modeling crossover sub is also more troublesome；2nd, pressing plate is pushed so as to steel using jack
Modeling crossover sub is sealed and sealing ring is placed in outside steel modeling crossover sub both ends, and uses hydraulic cylinder（Or cylinder）It is clamped in
When steel modeling crossover sub both ends are sealed, all more difficult control of the dynamics of both, may if the power that pushes or clamp is inadequate
The sealing of steel modeling crossover sub end can be made not firm, so as to influence the accuracy of experiment, bring the erroneous judgement in quality, push or
If the power of clamping is excessive, steel modeling crossover sub can be made to deform, cause steel modeling crossover sub end face（Pipe end）Out-of-flatness, from
And make it that between steel modeling crossover sub and pressing plate sealing can not be formed, the erroneous judgement in quality is brought, in addition, the power for pushing or clamping
Excessively, it is also possible to directly damage steel modeling crossover sub.
The content of the invention
It is easy to operate it is an object of the invention to overcome the defect of prior art, and provide a kind of reasonable integral structure, test
As a result accuracy is high, and can guarantee that two pipe ends of steel modeling crossover sub are not easy to be pressed from both sides the envelope pressure test machine of damage.
To achieve these goals, the present invention uses following technical scheme：
One kind envelope pressure test machine, including main engine bed, air feed pump, further include closure cylinder, compression cylinder, one it is closed at both ends
And horizontal central siphon, the limit base for contacting steel modeling crossover sub one end, it is used to support steel modeling crossover sub and turns steel modeling
Changing-over head axis is in the connection supports frame of horizontality, and closure cylinder, compression cylinder, connection supports frame are arranged at main engine bed
On, the closure cylinder includes end socket cylinder body, end socket the cylinder piston, end socket piston rod, and the scalable direction of end socket piston rod is horizontal,
Compression cylinder includes compressing cylinder body, compresses the cylinder piston, clamping piston bar, and the scalable direction of clamping piston bar is vertical, compresses and lives
Stopper rod is equipped with the positioning plate for being used for compressing steel modeling crossover sub, and positioning plate is in above connection supports frame, on end socket piston rod
Equipped with the band moving frame for driving central siphon axially to be moved horizontally along central siphon, central siphon is equipped with cricoid modeling and manages outer end-plate, ring-type
The outer end-plate of steel pipe, modeling manages outer end-plate outer circumferential surface and is equipped with modeling pipe outside plate annular groove, and end-plate outer circumferential surface is equipped with outside steel pipe
Steel pipe outside plate annular groove, the outer end-plate of the outer end-plate of modeling pipe, steel pipe, modeling pipe outside plate annular groove, steel pipe outside plate annular groove are coaxial with central siphon,
Modeling pipe outside plate annular groove is equipped with the modeling pipe exterior seal ring for being used for contacting steel modeling crossover sub inner wall, and steel pipe outside plate annular groove, which is equipped with, to be used
In the steel pipe exterior seal ring of contact steel modeling crossover sub inner wall, central siphon is equipped with the first air inlet with being connected inside central siphon, the
One air inlet is equipped with the first breather check valve, the first breather check valve can be by direction by central siphon to outside central siphon, axis
Pipe outer wall is equipped with the first baroceptor, and the steel modeling crossover sub that connection supports frame is supported is in limit base and closure cylinder
Between, by air supply pipe with being connected inside central siphon, the main basal base is equipped with supporting guide, supporting guide at the supply end of air feed pump
Supporting rod is equipped with, supporting rod lower end is slidably connected with supporting guide, the slidably direction of supporting rod and the removable side of central siphon
To parallel, post upper connect band moving frame, the positioning plate lower surface is equipped with the rubber for being used for contacting steel modeling crossover sub
Clamping pad.
Preferably, the connection supports frame include horizontal support baseboard, two it is vertical and support parallel to each other is stood
Plate, supporting vertical plate are equipped with the V-arrangement support slot for being used for accommodating steel modeling crossover sub, opening up, the supporting vertical plate of V-arrangement support slot
Lower end is fixed with support baseboard top surface.
Preferably, the central siphon is equipped with cricoid modeling pipe the inner sealing plate, cricoid steel pipe the inner sealing plate, modeling pipe is inner
Sealing plate outer circumferential surface is equipped with modeling pipe inner panel annular groove, and steel pipe the inner sealing plate outer circumferential surface is equipped with steel pipe inner panel annular groove, moulds pipe inner panel ring
Groove is equipped with the modeling pipe inner seal ring for being used for contacting steel modeling crossover sub inner wall, and steel pipe inner panel annular groove, which is equipped with, to be used to contact steel modeling
The steel pipe inner seal ring of crossover sub inner wall, modeling pipe the inner sealing plate, steel pipe the inner sealing plate, modeling pipe inner panel annular groove, steel pipe inner panel ring
Groove is coaxial with central siphon, and modeling pipe the inner sealing plate is between steel pipe the inner sealing plate and the outer end-plate of modeling pipe, at the sealing plate of steel pipe the inner
Outside modeling pipe the inner sealing plate and steel pipe between end-plate, central siphon is equipped with the second air inlet and central siphon with being connected inside central siphon
Inside connection the 3rd air inlet, central siphon outer wall be equipped with the second baroceptor, the 3rd baroceptor, the first air inlet with
First baroceptor is in outside steel pipe between end-plate and steel pipe the inner sealing plate, the second air inlet and the second baroceptor
It is between steel pipe the inner sealing plate and modeling pipe the inner sealing plate, the 3rd air inlet and the 3rd baroceptor are in modeling pipe the inner
Between outer end-plate is managed in sealing plate and modeling, the second air inlet is equipped with the second breather check valve, the 3rd air inlet equipped with the 3rd into
Gas check valve, the second breather check valve can by direction, the 3rd breather check valve can by direction be by central siphon extremely
Outside central siphon.
Preferably, the steel pipe exterior seal ring, steel pipe inner seal ring, modeling pipe inner seal ring, modeling pipe exterior seal ring are
Inside has the gas-flow closure circle of inflatable chamber, and the outer end-plate of steel pipe is equipped with steel pipe exterior seal ring inner inflatable chamber and central siphon
The steel pipe outer ring gas tube of portion's connection, steel pipe the inner sealing plate are equipped with steel pipe inner seal ring inner inflatable chamber with connecting inside central siphon
Logical steel pipe inner ring gas tube, modeling pipe the inner sealing plate, which is equipped with, will mould what pipe inner seal ring inner inflatable chamber was connected with central siphon inside
Pipe inner ring gas tube is moulded, modeling manages outer end-plate and is equipped with the modeling pipe that will be moulded pipe exterior seal ring inner inflatable chamber with connected inside central siphon
Outer ring gas tube.
Preferably, the central siphon is equipped with the pressure release exhausting-gas hole with being connected inside central siphon, band moving frame is with central siphon by rubbing
Driving structure connection is wiped, friction driving structure includes promoting limit body, retracts limit body, friction band rotating ring, some push-pull rods, pushes away
Pull rod is horizontal and push-pull rod one end connect band moving frame, push-pull rod other end connection friction band rotating ring, friction band moving ring sleeve are located at axis
On pipe and coaxial with central siphon, friction band rotating ring can move horizontally on central siphon, and friction band rotating ring inner ring surface is equipped with friction sealed
Groove, friction sealed groove are equipped with drag seal, and drag seal is coaxial with central siphon, between drag seal and central siphon lateral wall
Extruding mutually, promotes limit body, retracts limit body and be in that central siphon is outer and fixed with central siphon, and limit base, which has, is used for spacing steel
The sealing plate confined planes of the outer end-plate of pipe, between pressure release exhausting-gas hole is in propulsion limit body and retracts limit body, at friction band rotating ring
Between promoting limit body and retracting limit body, when friction band rotating ring contact promotes limit body, drag seal seals pressure release row
Stomata；When friction band rotating ring contact retracts limit body, drag seal is separated with pressure release exhausting-gas hole.
Preferably, the propulsion limit body is annular in shape, the limit body that retracts is annular in shape, promotes limit body and central siphon same
Axis, it is coaxial with central siphon to retract limit body.
Preferably, the air supply pipe is by the way that from break-make admission line, with being connected inside central siphon, the supply end of air feed pump connects
One end of logical air supply pipe, the other end of air supply pipe is connected from one end of break-make air inlet pipe, from the other end and axis of break-make air inlet pipe
Connection inside pipe, friction band rotating ring are equipped with one piece of break-make transverse slat, break-make transverse slat through from break-make air inlet pipe and with from break-make into
Tracheae is slidingly sealed cooperation, and break-make transverse slat is equipped with plate venthole, when friction band rotating ring contact promotes limit body, plate venthole with
Connected from the inner passage of break-make air inlet pipe；When friction band rotating ring contact retracts limit body, break-make transverse slat will be from break-make air inlet pipe
Inner passage partition.
Preferably, the central siphon lateral wall is equipped with external screw thread, steel pipe the inner sealing plate inner ring surface, mould in the sealing plate of pipe the inner
Anchor ring is connected by the external screw thread on internal thread and central siphon lateral wall, and central siphon is equipped with inflating port in first, in second
Inflating port, inflating port in first, in second inflating port with being connected inside central siphon；The first air flue is equipped with the sealing plate of steel pipe the inner,
First air flue outer end opening is opened on steel pipe the inner sealing plate inner ring surface, steel in steel pipe the inner sealing plate outer ring surface, first air flue the inner
Pipe inner ring gas tube one end is connected with steel pipe inner seal ring inner inflatable chamber, the steel pipe inner ring gas tube other end is outside the first air flue
End is stretched into the first air flue, is sealed between steel pipe inner ring gas tube outer tube wall and the air flue inner wall of the first air flue, in the first air flue
Rectify to inflating port in first and connected with inflating port in first；Mould and the second air flue is equipped with the sealing plate of pipe the inner, outside the second air flue
For end opening in modeling pipe the inner sealing plate outer ring surface, second air flue the inner is opened on modeling pipe the inner sealing plate inner ring surface, the inner ring inflation of modeling pipe
Pipe one end connects with modeling pipe inner seal ring inner inflatable chamber, moulds the pipe inner ring gas tube other end and stretch into first from the second air flue outer end
In air flue, mould and sealed between pipe inner ring gas tube outer tube wall and the air flue inner wall of the second air flue, second air flue the inner face second
Interior inflating port and connected with inflating port in second.
Preferably, the steel pipe end for the steel modeling crossover sub that connection supports frame is supported is towards limit base, it is described to promote limit
Position body is in modeling and manages between outer end-plate and friction band rotating ring, retracts limit body and is in friction band rotating ring and between moving frame.
The beneficial effects of the invention are as follows：Reasonable integral structure, the positioning and clamping for moulding crossover sub to steel in place, can ensure
Leakproofness but will not press from both sides damage steel modeling crossover sub；With can automatic adjusument sealing structure, can strengthen hyperbar detection when
Sealing effect, maintain the stability of detection process；Many places can disposably be carried out targetedly to detect, it is efficient, effect is good；
Possess multiple protective structure and the control structure of coordinated type, can be to avoid caused by various maloperations the problem of, and the company of action
Continuous property is good, and work efficiency is high, and detection process is smooth efficiently.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is the structure diagram of inventive joint supporting rack；
Fig. 3 is the enlarged drawing at A in Fig. 1；
Fig. 4 is the enlarged drawing at B in Fig. 1；
Fig. 5 is the enlarged drawing at C in Fig. 1；
Fig. 6 is the enlarged drawing at D in Fig. 1；
Fig. 7 is the enlarged drawing at E in Fig. 1.
In figure：Outer end seal is managed in air feed pump 1, air supply pipe 11, sliding rack 12, pump link 13, support slide 14, central siphon 2, modeling
Plate 21, modeling pipe exterior seal ring 211, modeling pipe outer ring gas tube 212, the outer end-plate 22 of steel pipe, steel pipe exterior seal ring 221, outside steel pipe
Enclose gas tube 222, modeling pipe the inner sealing plate 23, modeling pipe inner seal ring 231, modeling pipe inner ring gas tube 232, the second air flue 23a, steel pipe
Inner sealing plate 24, steel pipe inner seal ring 241, steel pipe inner ring gas tube 242, the first air flue 24a, the first air inlet 2a, second into
Gas port 2b, the 3rd air inlet 2c, pressure release exhausting-gas hole 2d, inflating port 2e in first, inflating port 2f, limit base 3, connector branch in second
Support 4, support baseboard 41, supporting vertical plate 42, V-arrangement support slot 43, end socket cylinder body 51, end socket piston rod 52, band moving frame 53, propulsion
Limit body 541, retract limit body 542, friction band rotating ring 543, drag seal 5431, push-pull rod 544, compression cylinder body 61, pressure
Tight piston rod 62, positioning plate 63, rubber clamping pad 631, modeling pipeline section 71, lengths of steel pipes 72, supporting guide 81, supporting rod 82.
Embodiment
The present invention will be further described with reference to the accompanying drawings and detailed description.
In embodiment as shown in Figures 1 to 7, one kind envelope pressure test machine, including main engine bed, air feed pump 1, further include closure
Cylinder, compression cylinder, one closed at both ends and horizontal central siphon 2, the limit base 3 for contacting steel modeling crossover sub one end, uses
Crossover sub is moulded in supporting steel and steel modeling crossover sub axis is in the connection supports frame 4 of horizontality, and closure cylinder, compress
Cylinder, connection supports frame are arranged on main engine bed, and the closure cylinder includes end socket cylinder body 51, is slidingly sealed with end socket cylinder body
The end socket the cylinder piston of cooperation, the end socket piston rod 52 being connected with end socket the cylinder piston, end socket piston rod level and end socket piston rod
Scalable direction is horizontal, and compression cylinder is including compressing cylinder body 61, the compression the cylinder piston of cooperation being slidingly sealed with compressing cylinder body, with pressing
The clamping piston bar 62 of tight the cylinder piston connection, clamping piston bar is vertical and the scalable direction of clamping piston bar is vertical, compresses and lives
Stopper rod is equipped with the positioning plate 63 for being used for compressing steel modeling crossover sub, and positioning plate is in above connection supports frame, end socket piston rod
It is equipped with and is used to drive the band moving frame 53 that central siphon is axially moved horizontally along central siphon, central siphon is equipped with cricoid modeling and manages outer end-plate
21st, the outer end-plate 22 of cricoid steel pipe, modeling manage outer end-plate outer circumferential surface and are equipped with modeling pipe outside plate annular groove, the outer end-plate periphery of steel pipe
Face is equipped with steel pipe outside plate annular groove, modeling manage the outer end-plate of outer end-plate, steel pipe, mould pipe outside plate annular groove, steel pipe outside plate annular groove with
Central siphon is coaxial, and modeling pipe outside plate annular groove is equipped with the modeling pipe exterior seal ring 211 for being used for contacting steel modeling crossover sub inner wall, steel pipe outside plate
Annular groove is equipped with the steel pipe exterior seal ring 221 for being used for contacting steel modeling crossover sub inner wall, and central siphon is equipped with being connected inside central siphon
The first air inlet 2a, the first air inlet is equipped with the first breather check valve, and the first breather check valve can be served as reasons by direction
To outside central siphon in central siphon, central siphon outer wall is equipped with the first baroceptor, and the steel that connection supports frame is supported is moulded at crossover sub
Between limit base and closure cylinder, the supply end of air feed pump is connected by air supply pipe 11 with central siphon inside, on the main basal base
Equipped with supporting guide 81, supporting guide is equipped with supporting rod 82, and supporting rod lower end is slidably connected with supporting guide, and supporting rod can be
Horizontal on supporting guide to slide, the slidably direction of supporting rod is parallel with the movable direction of central siphon, post upper connect band
Moving frame, the positioning plate lower surface are equipped with the rubber clamping pad 631 for being used for contacting steel modeling crossover sub.In air supply pipe and central siphon
The connectivity part in portion is managed between outer end-plate and closure cylinder positioned at modeling.The reading display end of first baroceptor is in tested steel
Mould outside crossover sub.The steel pipe end of steel that the connection supports frame is supported modeling crossover sub is towards limit base.Air feed pump is set
On a sliding rack 12, air feed pump is connected by pumping link 13 with central siphon, main engine bed be equipped with support slide 14, sliding rack with
Support slide is slidably matched, and the slidably direction of sliding rack is horizontal.Support slide can aid in carrying out air feed pump, band moving frame etc.
Support, prevents end socket piston rod load（Especially downward power）It is excessive, while auxiliary guiding can be carried out, improve the course of work
Stability.
The lengths of steel pipes 72 and modeling 71 internal diameter of pipeline section of steel modeling crossover sub are not necessarily identical, and usually, modeling pipeline section internal diameter omits
More than lengths of steel pipes internal diameter（Also lengths of steel pipes internal diameter in special circumstances is more than modeling pipeline section internal diameter, here only by taking normal conditions as an example
To be stated, and lengths of steel pipes internal diameter is more than under the situation of modeling pipeline section internal diameter, and testing principle is also identical）.Connection supports frame
On can place steel modeling crossover sub（Be usually by lengths of steel pipes frame on connection supports frame, or will modeling pipeline section frame in connector
On supporting rack）, by steel modeling crossover sub one end（Steel pipe end）Against limit base（Steel pipe end in contact limit base, limit base is not
It is sealing structure, without sealing steel pipe end）, clamping piston bar drives positioning plate to move down, and rubber on positioning plate lower surface compresses
Pad contact steel modeling crossover sub simultaneously fixes steel modeling crossover sub（With rubber clamping pad come contact steel modeling crossover sub can be to prevent
Only positioning plate crushing and scratch steel modeling crossover sub, and the contact compression of rubber clamping pad is better）, with rear head piston rod
Stretch out, by driving end-plate outside the modeling pipe on central siphon and central siphon with moving frame, end-plate stretches into steel modeling conversion together outside steel pipe
In connector, reach the outer end-plate of modeling pipe and be in modeling pipe end（Mould in pipeline section）, the outer end-plate of steel pipe be in steel pipe end（In lengths of steel pipes）
State, and mould pipe exterior seal ring coordinate modeling manage outer end-plate the modeling pipe end that steel moulds crossover sub is sealed, steel pipe exterior seal ring
The outer end-plate of steel pipe is coordinated to live the steel pipe end seal of steel modeling crossover sub.Then air feed pump can be utilized by air supply pipe to central siphon
Inside is supplied, and gas enters in steel modeling crossover sub through the first air inlet, after certain pressure value to be achieved（The pressure value can
Set according to gas in actual use or fluid pressure, generally can be 1 to 8 times of atmospheric pressure）, stop supply（By
Usually carry check valve in air feed pump, thus in steel modeling crossover sub, the gas in central siphon will not from supply pump reflux and leakage,
According to the air feed pump without check valve, then need to set check valve or on-off valve at the supply end of air feed pump, stopped the supple of gas or steam with ensureing
The gas that steel is moulded in crossover sub, in central siphon afterwards will not flow back）.After air pressure in tested steel modeling crossover sub is basicly stable, hold
The reading display end of the first baroceptor of continuous observation, if numerical value is unchanged in a period of time or numerical value change is in zone of reasonableness
It is interior, it is qualified to be tested steel modeling crossover sub air-tightness.After the completion of detection, by air feed pump and air supply pipe（Usually cylinder special plastic
Hose, can also use metal bellows etc.）Separation, can be again after the gases at high pressure release in steel modeling crossover sub, in central siphon
Pull out central siphon.Supporting guide is arranged on main basal base, and supporting guide is supported band moving frame by supporting rod, avoids end socket from living
Stopper rod and excessive with stress in moving frame, can effectively protect end socket piston rod and with moving frame, reinforced structure stability.During work,
Supporting rod lower end can be slided on supporting guide, and supporting rod then supports band moving frame, can effectively protect end socket piston rod all the time.
The connection supports frame includes horizontal 41, two vertical and parallel to each other supporting vertical plates 42 of support baseboard, branch
Support riser be equipped be used for accommodate steel modeling crossover sub V-arrangement support slot 43, V-arrangement support slot it is opening up, under supporting vertical plate
End is fixed with support baseboard top surface, in a supporting vertical plate：V-arrangement support slot runs through two plate faces of supporting vertical plate.Utilize two
The V-arrangement support slot of a supporting vertical plate upper end as supporting structure, tested steel modeling crossover sub is supported with it is spacing.
The central siphon is equipped with cricoid modeling pipe the inner sealing plate 23, cricoid steel pipe the inner sealing plate 24, modeling pipe the inner sealing plate
Outer circumferential surface is equipped with modeling pipe inner panel annular groove, and steel pipe the inner sealing plate outer circumferential surface is equipped with steel pipe inner panel annular groove, moulds on pipe inner panel annular groove
Equipped with the modeling pipe inner seal ring 231 for contacting steel modeling crossover sub inner wall, steel pipe inner panel annular groove, which is equipped with, to be used to contact steel modeling
The steel pipe inner seal ring 241 of crossover sub inner wall, modeling pipe the inner sealing plate, steel pipe the inner sealing plate, modeling pipe inner panel annular groove, steel pipe inner panel
Annular groove is coaxial with central siphon, and modeling pipe the inner sealing plate is between steel pipe the inner sealing plate and the outer end-plate of modeling pipe, steel pipe the inner sealing plate
Be between modeling pipe the inner sealing plate and the outer end-plate of steel pipe, central siphon be equipped with the second air inlet 2b for connect inside central siphon and
3rd air inlet 2c of connection inside central siphon, central siphon outer wall are equipped with the second baroceptor, the 3rd baroceptor, first into
Gas port and the first baroceptor are in outside steel pipe between end-plate and steel pipe the inner sealing plate, the second air inlet and the second air pressure
Sensor is between steel pipe the inner sealing plate and modeling pipe the inner sealing plate, and the 3rd air inlet and the 3rd baroceptor are in modeling
Between outer end-plate is managed in pipe the inner sealing plate and modeling, the second air inlet is equipped with the second breather check valve, and the 3rd air inlet is equipped with
3rd breather check valve, the second breather check valve can by direction, the 3rd breather check valve can by direction be by axis
To outside central siphon in pipe.Reading display end, the reading display end of the 3rd baroceptor of second baroceptor are in tested
Outside steel modeling crossover sub（The induction end of first baroceptor is in outside steel pipe between end-plate and steel pipe the inner sealing plate, and second
The induction end of baroceptor is between steel pipe the inner sealing plate and modeling pipe the inner sealing plate, at the induction end of the 3rd baroceptor
Between modeling pipe the inner sealing plate and modeling manage outer end-plate）.Add modeling pipe the inner sealing plate and steel pipe the inner sealing plate（With modeling pipe outer end
The outer end-plate of sealing plate, steel pipe is the same, as central siphon stretches into steel modeling crossover sub together）, so as to disposably carry out " three sections
Detection ", is respectively lengths of steel pipes, modeling pipeline section and linkage section（Lengths of steel pipes and the Butt Section of modeling pipeline section）, the outer end-plate of steel pipe and steel
The air-tight cavity of detection lengths of steel pipes is formed between the sealing plate of pipe the inner, forming detection between steel pipe the inner sealing plate and modeling pipe the inner sealing plate connects
The air-tight cavity of section is connect, pipe the inner sealing plate is moulded and the air-tight cavity of formation detection modeling pipeline section between outer end-plate is managed in modeling, air feed pump passes through
First air inlet, the second air inlet, the 3rd air inlet are at the same time inflated each section of air-tight cavity, the first baroceptor, second
Baroceptor, the 3rd baroceptor then can draw whether deposit at the same time to each section of progress air pressure detection so as to fast and effective
In crack and leakage, and which section specific leakage part is.
The steel pipe exterior seal ring, steel pipe inner seal ring, modeling pipe inner seal ring, modeling pipe exterior seal ring be it is internal have fill
The gas-flow closure circle of air cavity, the outer end-plate of steel pipe are equipped with the steel for connecting steel pipe exterior seal ring inner inflatable chamber with central siphon inside
Pipe outer ring gas tube 222, steel pipe the inner sealing plate are equipped with the steel for connecting steel pipe inner seal ring inner inflatable chamber with central siphon inside
Pipe inner ring gas tube 242, modeling pipe the inner sealing plate are equipped with the modeling that will be moulded pipe inner seal ring inner inflatable chamber with connected inside central siphon
Pipe inner ring gas tube 232, modeling manage outer end-plate and are equipped with the modeling that will be moulded pipe exterior seal ring inner inflatable chamber with connected inside central siphon
Pipe outer ring gas tube 212.Further, steel pipe exterior seal ring, steel pipe inner seal ring, modeling pipe inner seal ring, modeling pipe in this programme
Exterior seal ring is gas-flow closure circle, so that its leakproofness can be adjusted.When above-mentioned each sealing ring is conventional seals circle（Such as rubber
The solid sealing ring of glue）, in order to ensure airtight effect during detection, sealing ring needs tightly to press between steel modeling crossover sub inner wall
Patch, this results in the friction when entering steel modeling crossover sub of each sealing ring and greatly, easily leads into difficult and easy Fast Wearing.
And in the present solution, before detection, above-mentioned each sealing ring is all non-aerating, so that central siphon and each sealing plate, each sealing ring can be smooth
Stretch into steel modeling crossover sub, after stretching into place, air feed pump supplies central siphon inside, and gas is except entering each section of annular seal space
Steel pipe exterior seal ring also outside, can be entered through steel pipe outer ring gas tube, steel pipe inner seal ring is entered through steel pipe inner ring gas tube,
Modeling pipe inner seal ring is entered through moulding pipe inner ring gas tube, enters modeling pipe exterior seal ring through moulding pipe outer ring gas tube, to be formed
Each section of sealing.Also, each section of airtight cavity pressure is bigger, and pressure is also bigger in each sealing ring, so possessing detection air pressure and close
The autonomous of envelope ability adapts to regulating power, can effectively prevent sealing deficiency or excessive seal.And detect and complete, discharge steel modeling turn
In changing-over head and during axis overpressure, gases at high pressure can be released in each sealing ring, and each sealing ring is moulded conversion with steel and connect after pressure release
It is minimum there is no rubbing or rubbing between head, so that each sealing plate directly allowed on central siphon and central siphon departs from steel modeling crossover sub i.e.
Can.After the form for employing gas-flow closure circle, " three sections of detections "（Lengths of steel pipes, modeling pipeline section, linkage section）Baroceptor is observed to read
During number, first there is obvious pressure drop in the baroceptor in which section（Beyond zone of reasonableness）, which section gas leakage just illustrated, is existed
Crack or seal defect.
The central siphon is equipped with the pressure release exhausting-gas hole 2d with being connected inside central siphon, and band moving frame drives knot with central siphon by rubbing
Structure connects, and friction driving structure includes promoting limit body 541, retracts limit body 542, friction band rotating ring 543, some push-pull rods
544, push-pull rod is horizontal and push-pull rod one end connect band moving frame, the connection of the push-pull rod other end rub with rotating ring, friction band moving ring sleeve
It is located on central siphon and coaxial with central siphon, friction band rotating ring can move horizontally on central siphon, and friction band rotating ring inner ring surface, which is equipped with, to rub
Seal groove is wiped, friction sealed groove is equipped with drag seal 5431, and drag seal is coaxial with central siphon, drag seal and central siphon
Extruded mutually between lateral wall, promote limit body, retract limit body and be in that central siphon is outer and fixed with central siphon, and limit base has
For the sealing plate confined planes of end-plate outside spacing steel pipe, the level interval of the outer end-plate of steel pipe and limit base is less than or equal to steel pipe
The level interval of outer end-plate and central siphon, between pressure release exhausting-gas hole is in propulsion limit body and retracts limit body, friction band rotating ring
It is between promoting limit body and retracting limit body, when friction band rotating ring contact promotes limit body, drag seal seals pressure release
Exhausting-gas hole；When friction band rotating ring contact retracts limit body, drag seal is separated with pressure release exhausting-gas hole.It is described propulsion limit body be in
Ring-type, the limit body that retracts is annular in shape, promotes limit body coaxial with central siphon, it is coaxial with central siphon to retract limit body.Promote spacing
Body is in modeling and manages between outer end-plate and friction band rotating ring, retracts limit body and is in friction band rotating ring and between moving frame.
This programme can realize pressurization protection and releasing pressure automatically.When needing to be detected, end socket piston rod stretches out, and passes through band
Moving frame, push-pull rod carry out band dynamic friction and drive ring set movement, since there is drag seal between friction band moving ring sleeve and central siphon, and
Mutual extrusion friction between drag seal and central siphon lateral wall, so friction band moving ring sleeve can be straight by drag seal at this time
Tape splicing moving axis pipe moves, and central siphon is entered steel modeling crossover sub together with each sealing plate, treats that the outer end-plate of steel pipe touches limit base
On sealing plate confined planes after, central siphon positioning, cannot move on, and the band rotating ring that rubs can continue promotion and be advanced until to touch
Limit body is promoted, end socket cylinder body is stopped（Pressure release exhausting-gas hole is sealed by drag seal at this time）.In the present solution, only complete
The entirety of central siphon and each sealing plate is stretched into, positioned, and pressure release exhausting-gas hole can just be sealed by drag seal, just can smoothly allow central siphon
Inflation, pressurize are realized in interior, each sealing ring, so as to can just be detected.And after the completion of detecting, end socket piston rod is directly withdrawn,
Since each sealing ring is in swelling state at this time, tightly it is affixed between moulding crossover sub with steel, so central siphon is equal together with each sealing plate
It can not move, end socket piston rod can only will be rubbed and be retracted with rotating ring by band moving frame, push-pull rod, until friction band rotating ring contact drawing
Limit body is returned, and in the process, drag seal can leave pressure release exhausting-gas hole, and in central siphon, gas can discharge in each sealing ring,
In each sealing ring after gas discharge, sealing effect disappears, in steel modeling crossover sub（I.e. in three seal sections）Gas can also arrange
Go out（No longer tightly it is affixed between each sealing ring and steel modeling crossover sub at this time）, so that continue to withdraw with end socket piston rod,
Central siphon can also be drawn out together with each sealing plate, depart from steel modeling crossover sub.The above process eliminates all unnecessary pressure releases and moves
Make（Separation, docking operation such as air supply pipe and air feed pump）, disposably realize and first discharge pressure, rear the dynamic of pull-out central siphon that be delayed
Make, whole process is reasonable, coherent, efficient.
The central siphon lateral wall is equipped with external screw thread, and steel pipe the inner sealing plate inner ring surface, modeling pipe the inner sealing plate inner ring surface are logical
Cross internal thread to be connected with the external screw thread on central siphon lateral wall, central siphon is equipped with inflating port 2e in first, inflating port in second
2f, inflating port in first, in second inflating port with being connected inside central siphon；The first air flue 24a is equipped with the sealing plate of steel pipe the inner, the
One air flue outer end opening is opened on steel pipe the inner sealing plate inner ring surface, steel pipe in steel pipe the inner sealing plate outer ring surface, first air flue the inner
Inner ring gas tube one end is connected with steel pipe inner seal ring inner inflatable chamber, the steel pipe inner ring gas tube other end is from the first air flue outer end
Stretch into the first air flue, sealed between steel pipe inner ring gas tube outer tube wall and the air flue inner wall of the first air flue, the first air flue is inner
Inflating port and connected in face first with inflating port in first；Mould and the second air flue 23a is equipped with the sealing plate of pipe the inner, outside the second air flue
For end opening in modeling pipe the inner sealing plate outer ring surface, second air flue the inner is opened on modeling pipe the inner sealing plate inner ring surface, the inner ring inflation of modeling pipe
Pipe one end connects with modeling pipe inner seal ring inner inflatable chamber, moulds the pipe inner ring gas tube other end and stretch into first from the second air flue outer end
In air flue, mould and sealed between pipe inner ring gas tube outer tube wall and the air flue inner wall of the second air flue, second air flue the inner face second
Interior inflating port and connected with inflating port in second.Steel pipe inner seal ring is fixed on steel pipe inner panel annular groove, and modeling pipe inner seal ring is consolidated
It is scheduled on modeling pipe inner panel annular groove.After having segmentation detection function, the whole detection inside steel modeling crossover sub can be still carried out,
Before needing to carry out the inside overall tightness detection of steel modeling crossover sub, turn steel pipe the inner sealing plate, modeling pipe the inner sealing plate are only needed,
Allow the first air flue is inner do not line up with inflating port in first, do not connect, make the second air flue inner and second in inflating port do not line up,
Do not connect, consequently, it is possible to be inflated again, pressurize, detection when, only steel pipe exterior seal ring and modeling pipe exterior seal ring play sealing
Effect, so as to realize the overall tightness detection inside steel modeling crossover sub（Remaining step is identical with segmentation detection）.It is whole
After the completion of physical examination is surveyed, segmentation detection is if desired carried out again, then first turn steel pipe the inner sealing plate, modeling pipe the inner sealing plate, make in steel pipe
End-plate, modeling pipe inner end seals sheet reset can re-start segmentation detection.
In addition, there is minimum probability, it may appear that situations below：Leakage position on steel modeling crossover sub, just by connector
The detection location structure such as supporting rack, positioning plate blocks, so as to cause these leakage positions during detection to be not detected among out gas leakage, pin
In this regard, if wanting raising further improves testing result accuracy, steel modeling crossover sub can be existed after the completion of one-time detection
An angle, such as 20 degree are rotated along steel modeling crossover sub axis on connection supports frame, consequently, it is possible to connection supports frame, positioning plate
Or be used to contacting on positioning plate steel modeling crossover sub structure etc. touch again steel modeling crossover sub position can with it is preceding once
Contact position it is different, with reference to testing result twice, it is possible to the modeling crossover sub leakproofness that must tap whether qualified conclusion.
Claims (4)
1. one kind envelope pressure test machine, including main engine bed, air feed pump, it is characterized in that, further include closure cylinder, compression cylinder, one
Central siphon closed at both ends and horizontal, the limit base for contacting steel modeling crossover sub one end, be used to support steel modeling crossover sub simultaneously
Steel modeling crossover sub axis is set to be in the connection supports frame of horizontality, closure cylinder, compression cylinder, connection supports frame are respectively provided with
On main engine bed, it is described closure cylinder include end socket cylinder body, end socket the cylinder piston, end socket piston rod, end socket piston rod it is scalable
Direction is horizontal, and compression cylinder includes compressing cylinder body, compresses the cylinder piston, clamping piston bar, and the scalable direction of clamping piston bar is erected
Directly, clamping piston bar is equipped with the positioning plate for being used for compressing steel modeling crossover sub, and positioning plate is in above connection supports frame, end socket
Piston rod, which is equipped with, to be used to drive the band moving frame that central siphon is axially moved horizontally along central siphon, and central siphon is equipped with cricoid modeling and manages outer end seal
The outer end-plate of plate, cricoid steel pipe, modeling manage outer end-plate outer circumferential surface and are equipped with modeling pipe outside plate annular groove, the outer end-plate outer circumferential surface of steel pipe
It is equipped with steel pipe outside plate annular groove, modeling manages the outer end-plate of outer end-plate, steel pipe, moulds pipe outside plate annular groove, steel pipe outside plate annular groove and axis
Pipe is coaxial, and modeling pipe outside plate annular groove is equipped with the modeling pipe exterior seal ring for being used for contacting steel modeling crossover sub inner wall, steel pipe outside plate annular groove
Be equipped be used for contact steel modeling crossover sub inner wall steel pipe exterior seal ring, central siphon be equipped with central siphon inside connect first into
Gas port, the first air inlet are equipped with the first breather check valve, the first breather check valve can be by direction by central siphon to axis
Pipe is outer, and central siphon outer wall is equipped with the first baroceptor, the steel modeling crossover sub that connection supports frame is supported be in limit base and
Between blocking cylinder, by air supply pipe with being connected inside central siphon, the main engine bed is equipped with supporting guide at the supply end of air feed pump,
Supporting guide is equipped with supporting rod, and supporting rod lower end is slidably connected with supporting guide, the slidably direction of supporting rod and central siphon
Movable direction is parallel, post upper connect band moving frame, and the positioning plate lower surface is equipped with to be connect for contacting steel modeling conversion
The rubber clamping pad of head；
The central siphon is equipped with cricoid modeling pipe the inner sealing plate, cricoid steel pipe the inner sealing plate, moulds on the sealing plate outer circumferential surface of pipe the inner
Equipped with modeling pipe inner panel annular groove, steel pipe the inner sealing plate outer circumferential surface is equipped with steel pipe inner panel annular groove, and modeling pipe inner panel annular groove, which is equipped with, to be used for
The modeling pipe inner seal ring of steel modeling crossover sub inner wall is contacted, steel pipe inner panel annular groove, which is equipped with, to be used to contact steel modeling crossover sub inner wall
Steel pipe inner seal ring, modeling pipe the inner sealing plate, steel pipe the inner sealing plate, modeling pipe inner panel annular groove, steel pipe inner panel annular groove are same with central siphon
Axis, modeling pipe the inner sealing plate are between steel pipe the inner sealing plate and the outer end-plate of modeling pipe, and steel pipe the inner sealing plate is in modeling pipe inner end seals
Between the outer end-plate of plate and steel pipe, central siphon be equipped with connect inside central siphon the second air inlet, connect with central siphon inside the
Three air inlets, central siphon outer wall are equipped with the second baroceptor, the 3rd baroceptor, the first air inlet and the first air pressure sensing
Device is in outside steel pipe between end-plate and steel pipe the inner sealing plate, and the second air inlet and the second baroceptor are in steel pipe
Between end-plate and modeling pipe the inner sealing plate, the 3rd air inlet and the 3rd baroceptor be in modeling pipe the inner sealing plate with outside modeling pipe
Between end-plate, the second air inlet is equipped with the second breather check valve, and the 3rd air inlet is equipped with the 3rd breather check valve, and second
Breather check valve can by direction, the 3rd breather check valve can be by direction by central siphon to outside central siphon；
The steel pipe exterior seal ring, steel pipe inner seal ring, modeling pipe inner seal ring, modeling pipe exterior seal ring are that inside has inflatable chamber
Gas-flow closure circle, the outer end-plate of steel pipe is equipped with outside the steel pipe for connecting steel pipe exterior seal ring inner inflatable chamber and central siphon inside
Gas tube is enclosed, steel pipe the inner sealing plate, which is equipped with, fills steel pipe inner seal ring inner inflatable chamber with the steel pipe inner ring connected inside central siphon
Tracheae, modeling pipe the inner sealing plate are equipped with the modeling pipe inner ring inflation that will be moulded pipe inner seal ring inner inflatable chamber and be connected inside central siphon
Pipe, modeling manage outer end-plate and are equipped with the modeling pipe outer ring gas tube that will be moulded pipe exterior seal ring inner inflatable chamber with connected inside central siphon；
The central siphon is equipped with the pressure release exhausting-gas hole with being connected inside central siphon, and band moving frame is connected with central siphon by the driving structure that rubs
Connect, friction driving structure includes promoting limit body, retracts limit body, friction band rotating ring, some push-pull rods, and push-pull rod is horizontal and pushes away
Pull rod one end connect band moving frame, push-pull rod other end connection friction band rotating ring, friction band moving ring sleeve is located on central siphon and and central siphon
Coaxially, friction band rotating ring can move horizontally on central siphon, and friction band rotating ring inner ring surface is equipped with friction sealed groove, friction sealed groove
Drag seal is equipped with, drag seal is coaxial with central siphon, is extruded mutually between drag seal and central siphon lateral wall, promotes
Limit body, retract limit body and be in that central siphon is outer and fixed with central siphon, and limit base, which has, is used for the outer end-plate of spacing steel pipe
Sealing plate confined planes, between pressure release exhausting-gas hole is in propulsion limit body and retracts limit body, friction band rotating ring is in propulsion limit body
Between retracting limit body, when friction band rotating ring contact promotes limit body, drag seal seals pressure release exhausting-gas hole；Friction drives
When ring contact retracts limit body, drag seal is separated with pressure release exhausting-gas hole；
The central siphon lateral wall is equipped with external screw thread, and steel pipe the inner sealing plate inner ring surface, modeling pipe the inner sealing plate inner ring surface are by interior
External screw thread on screw thread and central siphon lateral wall is connected, and central siphon is equipped with inflating port in first, inflating port in second, in first
Inflating port, in second inflating port with being connected inside central siphon；The first air flue is equipped with the sealing plate of steel pipe the inner, the first air flue outer end is opened
For mouth in steel pipe the inner sealing plate outer ring surface, first air flue the inner is opened on steel pipe the inner sealing plate inner ring surface, steel pipe inner ring gas tube one
End is connected with steel pipe inner seal ring inner inflatable chamber, the steel pipe inner ring gas tube other end stretches into the first air flue from the first air flue outer end
It is interior, seal between steel pipe inner ring gas tube outer tube wall and the air flue inner wall of the first air flue, filled in first air flue the inner face first
Gas port and connected with inflating port in first；The second air flue is equipped with the sealing plate of modeling pipe the inner, the second air flue outer end opening is in modeling pipe
End-plate outer ring surface, second air flue the inner are opened on modeling pipe the inner sealing plate inner ring surface, and modeling pipe inner ring gas tube one end is with moulding in pipe
The connection of sealing ring inner inflatable chamber, the modeling pipe inner ring gas tube other end are stretched into the first air flue from the second air flue outer end, are moulded in pipe
Sealed between circle gas tube outer tube wall and the air flue inner wall of the second air flue, inflating port and with the in second air flue the inner face second
Inflating port connects in two.
2. a kind of envelope pressure test machine according to claim 1, it is characterized in that, the connection supports frame includes horizontal support
Bottom plate, two vertical and parallel to each other supporting vertical plates, supporting vertical plate are equipped with the V-arrangement support for being used for accommodating steel modeling crossover sub
Groove, V-arrangement support slot it is opening up, supporting vertical plate lower end is fixed with support baseboard top surface.
3. a kind of envelope pressure test machine according to claim 1, it is characterized in that, the propulsion limit body is annular in shape, the drawing
It is annular in shape to return limit body, promotes limit body coaxial with central siphon, it is coaxial with central siphon to retract limit body.
4. a kind of envelope pressure test machine according to claim 1 or 3, it is characterized in that, the steel that the connection supports frame is supported
The steel pipe end of crossover sub is moulded towards limit base, promotes limit body to be in modeling and manages between outer end-plate and friction band rotating ring, retract
Limit body is in friction band rotating ring and between moving frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610183677.2A CN105666100B (en) | 2016-03-26 | 2016-03-26 | One kind envelope pressure test machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610183677.2A CN105666100B (en) | 2016-03-26 | 2016-03-26 | One kind envelope pressure test machine |
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| CN105666100A CN105666100A (en) | 2016-06-15 |
| CN105666100B true CN105666100B (en) | 2018-05-04 |
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| CN201610183677.2A Active CN105666100B (en) | 2016-03-26 | 2016-03-26 | One kind envelope pressure test machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109631999B (en) * | 2018-12-26 | 2021-08-24 | 武汉科技大学 | Chain cover scattered part assembly detection method and device |
| CN109623315B (en) * | 2018-12-26 | 2021-03-09 | 武汉科技大学 | Chain cover scattered accessory detection and assembly integrated method and device |
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| CN105666100A (en) | 2016-06-15 |
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Effective date of registration: 20240424 Address after: No. 149, Zhujiamiao Village, Zhengwang Town, Hedong District, Linyi City, Shandong Province, 276000 Patentee after: Chen Honglin Country or region after: China Patentee after: Zhang Zheng Patentee after: Feng Jianbiao Address before: Room 407-10, floor 4, building 2, Haichuang science and technology center, Cangqian street, Yuhang District, Hangzhou City, Zhejiang Province, 311100 Patentee before: Zhejiang Zhiduo Network Technology Co.,Ltd. Country or region before: China |
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Effective date of registration: 20240902 Address after: No. 3-1 and 3-2, Weili Industrial Park, Huajiao Road, Liuqiao Town, Qihe County, Dezhou City, Shandong Province, 253000 Patentee after: Shandong Maidelong Machinery Co.,Ltd. Country or region after: China Address before: No. 149, Zhujiamiao Village, Zhengwang Town, Hedong District, Linyi City, Shandong Province, 276000 Patentee before: Chen Honglin Country or region before: China Patentee before: Zhang Zheng Patentee before: Feng Jianbiao |
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