CN205426509U - Bellows expansion joint mechanical properties test device - Google Patents
Bellows expansion joint mechanical properties test device Download PDFInfo
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- CN205426509U CN205426509U CN201620233214.8U CN201620233214U CN205426509U CN 205426509 U CN205426509 U CN 205426509U CN 201620233214 U CN201620233214 U CN 201620233214U CN 205426509 U CN205426509 U CN 205426509U
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Abstract
This technique belongs to the machine -building and detects technical field, relates to a bellows expansion joint mechanical properties test device, and the mechanical properties who is particularly useful for saving two corrugated metal tube swellings simultaneously carries out while testing, a bellows expansion joint mechanical properties test device, includes the vertically frame, and the frame includes roof, bottom plate and guide pillar, and parallel roof and bottom plate link firmly in the both ends of parallel arrangement's guide pillar, still including move setting up the top shoe and slider down on the guide pillar, set up the mobile Workbench on slider down, the lower revolving stage that sets up on mobile Workbench rotates, the last revolving stage that sets up below the top shoe rotates, move the drive connecting plate that sets up on the guide pillar, the setting drives and load mechanism at frame and the experiment that drives between the connecting plate, the relative lower revolving stage that sets up is the same with last revolving stage structure, the axis collineation of bellows expansion joint testpieces, time revolving stage, last revolving stage and drive connecting plate.
Description
Technical field
This technology belongs to machine-building detection technique field, relates to a kind of bellows expansion joint mechanical test device, is particularly suited for testing the mechanical performance of two metal corrugated pipe expansion joints simultaneously simultaneously.
Background technology
At present, during pipeline is widely used in oil, chemical industry, metallurgy, electric power, therrmodynamic system.Supporting bellows expansion joint is as a kind of elastic compensation element that can freely stretch, the telescopic shape change utilizing the flexible member of corrugated expansion joint absorb to a certain extent conduit, pipeline or container by expand with heat and contract with cold or other reason and produce horizontal, axially or angular displacement, there is the advantage such as reliable operation, functional, compact conformation, have been widely used in departments such as chemical industry, metallurgy, nuclear energy.High speed development along with Chinese national economy, the swift and violent increase of the field pipeline consumptions such as particularly urban construction, oil, gas, coal, heat, demand rises year by year, effect and the importance of bellows expansion joint are the most increasing, Social benefit and economic benefit is more and more higher, on the premise of ensureing safety requirements, produce qualified bellows expansion joint and seem more and more important.
Although current domestic expansion joint manufacturing firm is a lot, but inspection lacks in ability, and seldom carries out the fatigue test work of bellows expansion joint.But all fatigue tests to bellows expansion joint propose requirement in the national and foreign standards such as TSGD7002-2006 " pressure pipeline element pattern test code ", GB/T12777-2008 and EJMA, fatigue test is expansion joint sample main performance pilot project, all expansion joint samples dispatched from the factory need to detect qualified just can coming into operation, so expansion joint performance testing equipment is to ensure that the key of expansion joint quality reliably through fatigue test.
Generally there is narrow application range (being only applicable to a testpieces of a kind of specification) in domestic existing expansion joint experiment on fatigue properties equipment, testing equipment is heavy, the most manually operates, labor intensity is big, automaticity is low, affects the preparation of result of the test, and Test Data Collecting amount is inadequate.
Summary of the invention
The purpose of this technology is to provide a kind of bellows expansion joint mechanical test device, two expansion joints can be tested simultaneously, improve test efficiency, and applied widely, the test requirements document of the bellows expansion joint testpieces that total height is different, monomer height is different can be met.
The purpose of this technology is to be achieved through the following technical solutions:
A kind of bellows expansion joint mechanical test device, including vertical framework, framework includes that top board, base plate and guide pillar, parallel top board and base plate are fixed on the two ends of at least two guide pillars be arrangeding in parallel；nullAlso include mobile being arranged on guide pillar、Top shoe between top board and base plate and sliding block，It is arranged on the mobile working platform above sliding block，Rotate and be arranged on being mainly used in by two identical bellows expansion joints use upper flanges above mobile working platform、Spacer flanger and lower end flange seal are connected and form but lower turntable that under the bellows expansion joint testpieces of middle UNICOM, end flanges is felt relieved and clamped，Rotate and be arranged on the upper turntable being mainly used in bellows expansion joint testpieces upper flanges being felt relieved and clamping below top shoe，The mobile drive connection plate being mainly used in bellows expansion joint testpieces spacer flanger being felt relieved and clamping between upper turntable and lower turntable being arranged on guide pillar，It is arranged between framework and drive connection plate for regulating test driving and the load maintainer that drive connection plate elemental height rear drive drive connection plate moves reciprocatingly；The lower turntable being oppositely arranged is identical with upper rotary display stand structure；Bellows expansion joint testpieces, lower turntable, upper turntable and the axis collinear of drive connection plate.
This technology provides the benefit that:
During use, upper flanges will be used by two identical bellows expansion joints, spacer flanger and lower end flange seal are connected and form but the bellows expansion joint testpieces of middle UNICOM is placed on lower turntable and end flanges under bellows expansion joint testpieces is felt relieved and clamped, according to bellows expansion joint testpieces spacer flanger and the height of upper flanges, firing test drives and regulates the elemental height of drive connection plate to being felt relieved by spacer flanger after spacer flanger and clamping with load maintainer, the height of regulation top shoe makes turntable to upper flanges being felt relieved after upper flanges and clamping, test driving and load maintainer drive drive connection strip to move spacer flanger and pump, one bellows expansion joint pressurized, another tension, reach the purpose simultaneously tested, improve test efficiency.Additionally, drive connection plate, top shoe and sliding block can move along guide pillar, and i.e. drive connection plate, top shoe and sliding block is Height Adjustable, the bellows expansion joint testpieces different to adapt to total height, can also adapt to the bellows expansion joint testpieces that monomer height is different, adaptability is preferable.
As the improvement to this technology, the upper flanges of bellows expansion joint testpieces and lower end flanges inner face with upper turntable and lower turntable respectively fits tightly.
This improvement, make bellows expansion joint testpieces in this bellows expansion joint mechanical test device during clamping upper flanges and lower end flanges respectively by the inner face of turntable and lower turntable axially position, face contacts relatively reliable with face.
As the further improvement to this technology, also include being arranged on top board and base plate for before the test for the stopping means of upper turntable, lower turntable and drive connection plate in the vertical direction location.
As the further improvement to this technology, stopping means includes the line slideway being vertically provided on top board and base plate, screw pair drive the mobile limited block being arranged on line slideway.
Above-mentioned improvement, it is easy to the bellows expansion joint testpieces to any length, the upper flanges portion of upper turntable clamp system alignment bellows expansion joint testpieces also realizes the clamping of upper flanges, and the Flange joint mechanism alignment test part spacer flanger of drive connection plate also realizes the clamping of spacer flanger.
As the further improvement to this technology, guide pillar has four.
As the further improvement to this technology, lower turntable include lower swivel plate and along lower swivel plate end face pitch circle uniform for by end flanges centering under bellows expansion joint testpieces and lower end flange to be clamped in the swivel plate clamp system on lower swivel plate inner face；Pivoting support is set between lower swivel plate and mobile working platform, planet-cycloid reducer drives lower swivel plate to rotate.
As the further improvement to this technology, on lower swivel plate inner face, under edge, swivel plate end face pitch circle is evenly equipped with swivel plate chute radially, corresponding each swivel plate chute, is provided with a swivel plate clamp system；Swivel plate clamp system includes the mobile swivel plate slide block being arranged in swivel plate chute, swing the swivel plate clamping block being arranged on swivel plate slide block, for driving swivel plate slide block to move in swivel plate chute and swivel plate slide block being positioned at the swivel plate slip transmission component of target location, for the swivel plate clamping transmission component driving swivel plate clamping block to be clamped on lower swivel plate inner face by bellows expansion joint testpieces lower end flange.
As the further improvement to this technology, swivel plate slip transmission component is the swivel plate screw-threaded shaft elevator being arranged in swivel plate chute, swivel plate motor drive, and swivel plate motor is placed in the outer end of swivel plate chute, is fixedly arranged on lower swivel plate；It is connected with swivel plate slide block by bearing pin in the middle part of swivel plate clamping block, swivel plate clamping transmission component is swivel plate clamping cylinder, and swivel plate clamping cylinder swings the outer end being arranged on swivel plate clamping block and makes end flanges under the inner clamping bellows expansion joint testpieces of swivel plate clamping block to drive the outer end of swivel plate clamping block.
As the further improvement to this technology, the quantity of swivel plate chute is eight, and accordingly, the quantity of swivel plate clamp system is eight.
As the further improvement to this technology, the swivel plate motor linkage in identical four or eight swivel plate clamp systems can be to end flanges self-centering under bellows expansion joint testpieces；End flanges under bellows expansion joint testpieces can be simultaneously clamped on by the swivel plate clamping cylinder linkage in identical four or eight swivel plate clamp systems.
Above-mentioned improvement, planet-cycloid reducer drives swivel plate to rotate thus drives bellows expansion joint testpieces to rotate at circumferencial direction, to realize the detection of the pitch of waves on bellows expansion joint testpieces difference circumferencial direction.The radial position of swivel plate clamping block can regulate, and is suitable for the clamping of end flanges under the bellows expansion joint testpieces of different nominal dimension.To after end flanges self-centering under bellows expansion joint testpieces, end flanges under bellows expansion joint testpieces can be simultaneously clamped on, improve clamping precision, reduce labor intensity.
As the further improvement to this technology, drive connection plate includes offering above diameter not less than the connecting plate of the through hole of bellows expansion joint testpieces spacer flanger diameter with along uniform four the Flange joint mechanisms of connecting plate end face pitch circle.
As the further improvement to this technology, Flange joint mechanism includes the connecting plate guide rail being radially fixed on connecting plate end face along connecting plate end face pitch circle, the mobile connecting plate slide block being arranged on connecting plate guide rail, move and be arranged in connecting plate slide block, the inner is the connecting plate voussoir of sphenoid, it is inner that swing is arranged on connecting plate slide block, outer end is the connecting plate compact heap of the sphenoid corresponding with sphenoid on connecting plate voussoir, the connecting plate screw-threaded shaft elevator moved along connecting plate guide rail for drive connection plate slide block, connecting plate screw-threaded shaft elevator is provided power by connecting plate motor, between connecting plate slide block and connecting plate voussoir, it is provided for drive connection plate voussoir move with the oil cylinder of drive connection plate compact heap clamping bellows expansion joint testpieces spacer flanger.
As the further improvement to this technology, the end face of connecting plate compact heap the inner is circular arc, and this end face has the groove matched with expansion joint testpieces spacer flanger.
As the further improvement to this technology, the identical connecting plate motor linkage in four Flange joint mechanisms can be to bellows expansion joint testpieces spacer flanger self-centering.
Above-mentioned improvement, the position of connecting plate slide block can be radially adjusted according to the difference of bellows expansion joint testpieces internal diameter, it is suitable for self-centering and the clamping of the bellows expansion joint testpieces spacer flanger of different inner diameters, use the connecting plate slide block the inner groove adapted with bellows expansion joint testpieces spacer flanger gabarit simultaneously, make above-mentioned centering relatively reliable with pinching action.
As the further improvement to this technology, it is two to vertically arranged dual output rod oil cylinder that test drives with load maintainer, the piston rod of dual output rod oil cylinder and cylinder body are fixedly arranged on drive connection plate and top shoe respectively, and the every pair of dual output rod oil cylinder is about the axisymmetrical of drive connection plate；In the lower end of the piston rod of dual output rod oil cylinder, force cell and displacement transducer are installed, load and the real-time Detection & Controling of test displacement for testing.
This improvement, by the reciprocating motion of drive connection strip dynamic test part, such a expansion joint pressurized, a tension, reaches the purpose simultaneously tested, improves test efficiency.Using four tests to drive to load testpieces with load maintainer, uniform force, result of the test is reliable simultaneously.
As the further improvement to this technology, between top board and top shoe, it is vertically provided with top oil cylinder, between base plate and sliding block, is provided with bottom oil cylinder.
As the further improvement to this technology, bellows expansion joint testpieces includes water circuit system, to bellows expansion joint testpieces internal offer test pressure.
As the further improvement to this technology, water circuit system is installed pressure transmitter, the pressure change during viewing test can be detected in real time, it is to avoid overvoltage test.
Accompanying drawing explanation
Fig. 1 is the axonometric chart of this bellows expansion joint mechanical test device；
Fig. 2 is the axonometric chart at this another visual angle of bellows expansion joint mechanical test device；
Fig. 3 is the axonometric chart of framework；
Fig. 4 is the structural representation of bellows expansion joint testpieces；
Fig. 5 is the structural representation of pivoting support；
Fig. 6 is the structural representation at another visual angle of pivoting support；
Fig. 7 is the axonometric chart of lower turntable；
Fig. 8 is the front view of lower turntable；
Fig. 9 is the top view of lower turntable；
Figure 10 is the axonometric chart of swivel plate clamp system；
Figure 11 is the axonometric chart at another visual angle of swivel plate clamp system；
Figure 12 is the axonometric chart that clamping has the drive connection plate of bellows expansion joint testpieces；
Figure 13 is the axonometric chart of drive connection plate；
Figure 14 is the top view of drive connection plate；
Figure 15 is the upward view of drive connection plate；
Figure 16 is the axonometric chart of Flange joint mechanism；
Figure 17 is the axonometric chart of the Flange joint mechanism eliminating connecting plate slide block；
Figure 18 is that test drives and load maintainer, the structural representation of stopping means.
Detailed description of the invention
Below in conjunction with the accompanying drawings, this technology is described further:
See shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, on the whole, this bellows expansion joint mechanical test device, including vertical framework 1, framework 1 includes that top board 103, base plate 101 and guide pillar 102, parallel top board 103 and base plate 101 are fixed on the two ends of at least two guide pillars be arrangeding in parallel 102；nullAlso include mobile being arranged on guide pillar 102、Top shoe 10 between top board 103 and base plate 101 and sliding block 2，It is arranged on sliding block 2 mobile working platform 3 above，Rotation is arranged on being mainly used in above mobile working platform 3 and uses upper flanges 601 to by two identical bellows expansion joints 603、Spacer flanger 602 and lower end flanges 604 seal to be connected and form but 6 times end flanges 604 of bellows expansion joint testpieces of middle UNICOM lower turntable 5 of feeling relieved and clamping，Rotate the upper turntable 13 being mainly used in bellows expansion joint testpieces 6 upper flanges 601 being felt relieved and clamping being arranged on top shoe 10 below，The mobile drive connection plate 9 being mainly used in bellows expansion joint testpieces spacer flanger 602 being felt relieved and clamping between upper turntable 13 and lower turntable 5 being arranged on guide pillar 102，It is arranged between framework 1 and drive connection plate 9 for regulating test driving and the load maintainer 11 that drive connection plate 9 elemental height rear drive drive connection plate 9 moves reciprocatingly；The lower turntable 5 being oppositely arranged is identical with upper turntable 13 structure；Bellows expansion joint testpieces 6, lower turntable 5, upper turntable 13 and the axis collinear of drive connection plate 9.Also include being arranged on top board 103 and base plate 101 for before the test for the stopping means 8 of upper turntable 13, lower turntable 5 and drive connection plate 9 in the vertical direction location.
See again shown in figure 4, vertical bellows expansion joint testpieces 6 is combined by two bellows expansion joints 603, including two bellows expansion joints, upper flanges 601, spacer flanger 602, lower end flanges 604 and two sealing plates, sealed by upper flanges 601 between the end face of two bellows expansion joint one end and be welded together to form combination bellows expansion joint, the end face at the combination upper and lower two ends of bellows expansion joint seals with upper flanges 601 and lower end flanges 604 respectively and welds, upper flanges 601 and lower end flanges 604 are fixing with a sealing plate removable seal respectively to be connected；Connect in the middle part of combination bellows expansion joint；The bottom of bellows expansion joint testpieces 6 is provided with intake-outlet, top is provided with air vent, discharges the air in bellows expansion joint testpieces 6 in time intaking；Upper flanges 601, spacer flanger 602, lower end flanges 604 are for being located by connecting with outside clamping device.When being embodied as, the external diameter choosing upper flanges 601, spacer flanger 602 and lower end flanges 604 is equal.
When carrying out actual tests, the upper flanges 601 of bellows expansion joint testpieces 6 and lower end flanges 604 inner face with upper turntable 13 and lower turntable 5 respectively fits tightly.
Framework 1 provides installation foundation for these bellows expansion joint each parts of mechanical test device, framework 1 is vertical, parallel including top board 103, base plate 101 and guide pillar 102, top board 103 and base plate 101, screw thread pair 104 it is connected in the two ends of at least two parallel guide pillars 102.For improving the rigidity of framework 1, the quantity choosing guide pillar 102 in this specific embodiment is four.Framework 1 undertakes again the parts offer guide effect for directly physically moving setting at framework 1, this parts thereof set-up mode on framework 1 is to be respectively embedded into the guide pin bushing corresponding with four guide pillars in parts in this section, guide pin bushing moves and is arranged on guide pillar 102, for prior art, repeat the most one by one.
The mobile top shoe 10 being arranged on guide pillar 102 and sliding block 2 are between top board 103 and base plate 101.
Arranging bottom oil cylinder 7 between base plate 101 and sliding block 2, bottom oil cylinder 7 cylinder body is installed in bottom plate hole 106, and bottom oil cylinder 7 piston rod is hinged with sliding block 2, moves realizing sliding block 2 on guide pillar 102, and by spacing for sliding block 2 at object height；Arranging top oil cylinder 12 between top board 103 and top shoe 10, top oil cylinder 12 cylinder body is installed in roof hole 105, and top oil cylinder 12 piston rod is hinged with top shoe 10, moves realizing top shoe 10 on guide pillar 102, and by spacing for top shoe 10 at object height.
It is provided above with mobile working platform 3 at sliding block 2.Mobile working platform 3 rotates and is provided with lower turntable 5, rotate below top shoe 10 and be provided with turntable 13.Lower rotation 5 is identical with the structure of upper turntable 13, is oppositely arranged.Detailed description of the invention is (seeing again shown in Fig. 5, Fig. 6), lower turntable 5 is connected with mobile working platform 3 by pivoting support 4, upper turntable 13 is connected with top shoe 10 by pivoting support, all synchromesh gear 403 is driven to drive pivoting support 4 to rotate by turntable motor 401 and planet-cycloid reducer 402, thus drive bellows expansion joint testpieces 6 in the rotary motion of circumferencial direction, to be capable of the detection of the pitch of waves on circumferencial direction different to bellows expansion joint testpieces 6.
Lower turntable 5 owing to being oppositely arranged is identical with the structure of upper turntable 13, therefore is described in detail as a example by following turntable 5.
See shown in Fig. 7, Fig. 8, Fig. 9, lower turntable 5 include swivel plate 501 and along swivel plate 501 end face pitch circle uniform for 6 times end flanges 604 of bellows expansion joint testpieces being felt relieved and lower end flanges 604 being clamped in the swivel plate clamp system 502 on lower swivel plate 501 inner face.
For lower turntable 5, swivel plate inner face is lower swivel plate 501 upper surface.Corresponding, for upper turntable, swivel plate inner face is swivel plate lower surface.
Swivel plate 501 is plank frame, and swivel plate end face pitch circle is on lower swivel plate 501 upper surface, to be positioned at the imaginary circle as the center of circle of the point on lower swivel plate 501 axis of rotation, and this imaginary circle is vertical with swivel plate 501 axis of rotation.The connecting plate end face pitch circle hereinafter addressed is similar with this imaginary circle.
Swivel plate 501 inner face is evenly equipped with swivel plate chute 503 radially, corresponding each swivel plate chute 503 along swivel plate end face pitch circle, is provided with a set of swivel plate clamp system 502.
See again shown in Figure 10, Figure 11, swivel plate clamp system 502 includes the mobile swivel plate slide block 50201 being arranged in swivel plate chute 503, swing the swivel plate clamping block 50202 being arranged on swivel plate slide block 50201, for driving swivel plate slide block 50201 to move in swivel plate chute 503 and swivel plate slide block 503 being positioned at the swivel plate slip transmission component of target location, for the swivel plate clamping transmission component driving swivel plate clamping block 50,202 6 times end flanges 604 of bellows expansion joint testpieces to be clamped on lower swivel plate 501 inner face.
T-slot chosen by swivel plate chute 503, and swivel plate slide block 50201 chooses T-shaped block.
Swivel plate slip transmission component is the swivel plate screw-threaded shaft elevator being arranged in swivel plate chute 503, swivel plate motor 50203 drive, and swivel plate motor 50203 is placed in the outer end of swivel plate chute 503, is fixedly arranged on lower swivel plate 501；It is connected with swivel plate slide block 50201 by bearing pin 50204 in the middle part of swivel plate clamping block 50202, swivel plate clamping transmission component is swivel plate clamping cylinder 50205, and swivel plate clamping cylinder 50205 swings the outer end being arranged on swivel plate clamping block 50202 and makes end flanges 604 under the inner clamping bellows expansion joint testpieces of swivel plate clamping block 50202 to drive the outer end of swivel plate clamping block 50202.
Swivel plate screw-threaded shaft elevator uses screw pair to drive swivel plate slide block 50201 to move in swivel plate chute 503, and utilize the self-locking property that screw pair is good, the swivel plate slide block 50201 connected with nut is locked in target location, to adapt to bellows expansion joint (the lower end flanges 604) testpieces of clamping different inner diameters.In diagram, offering female thread on swivel plate slide block 50201, swivel plate slide block 50201 is as nut, and match composition screw pair with leading screw 50206.
Swivel plate clamping cylinder 50205 swings the outer end being arranged on swivel plate clamping block 50202, its detailed description of the invention is, swivel plate clamping cylinder 50205 cylinder body rotates the outer end being arranged on swivel plate clamping block 50202, swivel plate clamping cylinder 50205 drives swivel plate clamping block 50202 to clamp under bellows expansion joint testpieces during end flanges 604, and swivel plate clamping cylinder 50205 piston rod moves and is arranged on swivel plate slide block 50201.
The quantity of swivel plate chute 503 is eight, and accordingly, the quantity of swivel plate clamp system is eight.
Swivel plate motor 50203 linkage in identical four or eight swivel plate clamp systems can be to end flanges 604 self-centering under bellows expansion joint testpieces；End flanges 604 under bellows expansion joint testpieces can be simultaneously clamped on by swivel plate clamping cylinder 50205 linkage in identical four or eight swivel plate clamp systems.
The quantity using swivel plate clamp system is generally four or eight, can be determined according to the external diameter of end flanges 604 under bellows expansion joint testpieces, when under bellows expansion joint testpieces, the external diameter of end flanges 604 is less, can be selected for four, when the external diameter of end flanges 604 is bigger under bellows expansion joint testpieces, can be selected for eight.But no matter select four or eight, be both needed to meet swivel plate clamp system on lower swivel plate end face pitch circle uniform.
Seeing again shown in Figure 12-15, drive connection plate 9 includes offering above diameter not less than the connecting plate 902 of the through hole 901 of bellows expansion joint testpieces spacer flanger 602 diameter with along uniform four the Flange joint mechanisms 903 of connecting plate 902 end face pitch circle.
nullSee again Figure 16、Shown in Figure 17，Flange joint mechanism 903 includes radially being fixed on the connecting plate guide rail 90301 on connecting plate 902 upper surface along connecting plate 902 end face pitch circle，The mobile connecting plate slide block 90302 being arranged on connecting plate guide rail 90301，Move and be arranged in connecting plate slide block 90302、The inner is the connecting plate voussoir 90303 of sphenoid，It is inner that swing is arranged on connecting plate slide block 90302、Outer end is the connecting plate compact heap 90304 of the sphenoid corresponding with sphenoid on connecting plate voussoir，The connecting plate screw-threaded shaft elevator 90306 moved along connecting plate guide rail 90301 for drive connection plate slide block 90302，Connecting plate screw-threaded shaft elevator 90306 is provided power by connecting plate motor 90305，Between connecting plate slide block 90302 and connecting plate voussoir 90303, it is provided for drive connection plate voussoir 90303 moves the connecting plate voussoir oil cylinder clamping bellows expansion joint testpieces spacer flanger 602 with drive connection plate compact heap 90304，The cylinder body 90307 of connecting plate voussoir oil cylinder is connected with connecting plate voussoir 90303，The piston rod 90308 of connecting plate voussoir oil cylinder is hinged with connecting plate slide block 90302.
The end face 90309 of connecting plate compact heap 90304 the inner, in circular arc, this end face has the groove matched with expansion joint testpieces spacer flanger 602.
Connecting plate motor 90305 linkage in four identical Flange joint mechanisms 903 can be to bellows expansion joint testpieces spacer flanger 602 self-centering；Bellows expansion joint testpieces spacer flanger 602 can be simultaneously clamped on by the identical connecting plate voussoir oil cylinder linkage in four Flange joint mechanisms 903.
Connecting plate screw-threaded shaft elevator uses screw pair drive connection plate slide block to move in connecting plate chute, and utilize the self-locking property that screw pair is good, by the connecting plate slider locks connected with nut in target location, to adapt to bellows expansion joint (spacer flanger 602) testpieces of clamping different inner diameters.Its structure is similar to the structure of swivel plate screw-threaded shaft elevator and concrete set-up mode with concrete set-up mode, repeats no more.
The most shown in Figure 18, it is two to vertically arranged dual output rod oil cylinder that test drives with load maintainer 11, the piston rod 1101 of dual output rod oil cylinder and cylinder body 1102 are fixedly arranged on drive connection plate and top shoe respectively, and the every pair of dual output rod oil cylinder is about the axisymmetrical of drive connection plate；Force cell 1103 and displacement transducer 1104 are installed in the lower end of the piston rod 1101 of dual output rod oil cylinder, load and the real-time Detection & Controling of test displacement for testing, " pressure pipeline element pattern test code " loads the test of bellows expansion joint performance test and test displacement proposes requirement, test in strict accordance with standard, it is ensured that experimental safe, reliability.
Stopping means 8 includes the line slideway 801 being vertically provided on top board 103 and base plate 101, is arranged on the limited block on line slideway 801 by screw pair driving is mobile.Screw pair is provided power by stopping means motor 803.
Stopping means 8 is for before the test to upper turntable 13, lower turntable 5, drive connection plate 9 in the vertical direction location, make the bellows expansion joint testpieces 6 for different length, the upper flanges 601 of upper turntable 13 clamp system alignment expansion joint testpieces also realizes the clamping of upper flanges 601, and the Flange joint mechanism alignment test part spacer flanger 602 of drive connection plate 9 also realizes the clamping of spacer flanger 602.
Bellows expansion joint testpieces includes water circuit system, and to bellows expansion joint testpieces internal offer test pressure, due to two bellows expansion joint intermediate connections, whole water circuit system is integrated, and closed test pressure is the most identical.
Installing pressure transmitter in water circuit system, can detect the pressure change during viewing test in real time, it is to avoid overvoltage test, in process of the test, pressure may very not stablized, it is ensured that testing intrinsic pressure less than 6.3MPa, safety is tested.
During use, bellows expansion joint testpieces is placed on lower turntable and end flanges 604 under bellows expansion joint testpieces is felt relieved and clamped, according to bellows expansion joint testpieces spacer flanger 602 and the height of upper flanges 601, firing test drives and regulates the elemental height of drive connection plate to being felt relieved by spacer flanger 602 after spacer flanger 602 and clamping with load maintainer, the height of regulation top shoe makes turntable to upper flanges 601 being felt relieved after upper flanges 601 and clamping, test driving and load maintainer drive drive connection strip to move spacer flanger 602 and pump, one bellows expansion joint pressurized, another tension, reach the purpose simultaneously tested.
This technology provides the benefit that:
Two bellows expansion joints can be tested simultaneously simultaneously, improve test efficiency.
Drive connection plate, top shoe and sliding block can move along guide pillar, i.e. drive connection plate, top shoe and sliding block is Height Adjustable, the bellows expansion joint testpieces different to adapt to total height, it is also possible to adapting to the bellows expansion joint testpieces that monomer height is different, adaptability is preferable.
Turntable motor drives the rotation of pivoting support by deceleration system and synchromesh gear thus realizes the rotation of bellows expansion joint testpieces, to adapt to the detection of the bellows expansion joint expansion joint testpieces difference circumferencial direction pitch of waves up and down.
Mechanization degree is higher.
Claims (10)
1. a bellows expansion joint mechanical test device, is characterized in that, including vertical framework, framework includes that top board, base plate and guide pillar, parallel top board and base plate are fixed on the two ends of at least two guide pillars be arrangeding in parallel；nullAlso include mobile being arranged on guide pillar、Top shoe between top board and base plate and sliding block，It is arranged on the mobile working platform above sliding block，Rotate and be arranged on being mainly used in by two identical bellows expansion joints use upper flanges above mobile working platform、Spacer flanger and lower end flange seal are connected and form but lower turntable that under the bellows expansion joint testpieces of middle UNICOM, end flanges is felt relieved and clamped，Rotate and be arranged on the upper turntable being mainly used in bellows expansion joint testpieces upper flanges being felt relieved and clamping below top shoe，The mobile drive connection plate being mainly used in bellows expansion joint testpieces spacer flanger being felt relieved and clamping between upper turntable and lower turntable being arranged on guide pillar，It is arranged between framework and drive connection plate for regulating test driving and the load maintainer that drive connection plate elemental height rear drive drive connection plate moves reciprocatingly；The lower turntable being oppositely arranged is identical with upper rotary display stand structure；Bellows expansion joint testpieces, lower turntable, upper turntable and the axis collinear of drive connection plate.
Bellows expansion joint mechanical test device the most according to claim 1, is characterized in that, also include being arranged on top board and base plate for before the test for the stopping means of upper turntable, lower turntable and drive connection plate in the vertical direction location.
Bellows expansion joint mechanical test device the most according to claim 2, is characterized in that, stopping means includes the line slideway being vertically provided on top board and base plate, screw pair drive the mobile limited block being arranged on line slideway.
Bellows expansion joint mechanical test device the most according to claim 1, it is characterized in that, lower turntable include lower swivel plate and along lower swivel plate end face pitch circle uniform for by under bellows expansion joint testpieces end flanges centering and lower end flange is clamped in the swivel plate clamp system on lower swivel plate inner face；Pivoting support is set between lower swivel plate and mobile working platform, planet-cycloid reducer drives lower swivel plate to rotate.
Bellows expansion joint mechanical test device the most according to claim 4, is characterized in that, on lower swivel plate inner face, under edge, swivel plate end face pitch circle is evenly equipped with swivel plate chute radially, corresponding each swivel plate chute, is provided with a swivel plate clamp system；Swivel plate clamp system includes that movement is arranged on the swivel plate slide block in lower swivel plate chute, swing the swivel plate clamping block being arranged on swivel plate slide block, for driving swivel plate slide block to move in swivel plate chute and swivel plate slide block being positioned at the swivel plate slip transmission component of target location, for the swivel plate clamping transmission component driving swivel plate clamping block to be clamped on lower swivel plate inner face by bellows expansion joint testpieces lower end flange.
Bellows expansion joint mechanical test device the most according to claim 5, it is characterized in that, swivel plate slip transmission component is the swivel plate screw-threaded shaft elevator being arranged in swivel plate chute, driven by swivel plate motor, swivel plate motor is placed in the outer end of swivel plate chute, is fixedly arranged on lower swivel plate；It is connected with swivel plate slide block by bearing pin in the middle part of swivel plate clamping block, swivel plate clamping transmission component is swivel plate clamping cylinder, and swivel plate clamping cylinder swings the outer end being arranged on swivel plate clamping block and makes end flanges under the inner clamping bellows expansion joint testpieces of clamping block to drive the outer end of swivel plate clamping block.
Bellows expansion joint mechanical test device the most according to claim 1, it is characterized in that, drive connection plate includes offering above diameter not less than the connecting plate of the through hole of bellows expansion joint testpieces spacer flanger diameter with along uniform four the Flange joint mechanisms of connecting plate end face pitch circle.
Bellows expansion joint mechanical test device the most according to claim 7, it is characterized in that, Flange joint mechanism includes the connecting plate guide rail being radially fixed on connecting plate end face along connecting plate end face pitch circle, the mobile connecting plate slide block being arranged on connecting plate guide rail, move and be arranged in connecting plate slide block, the inner is the connecting plate voussoir of sphenoid, it is inner that swing is arranged on connecting plate slide block, outer end is the connecting plate compact heap of the sphenoid corresponding with sphenoid on connecting plate voussoir, the connecting plate screw-threaded shaft elevator moved along connecting plate guide rail for drive connection plate slide block, connecting plate screw-threaded shaft elevator is provided power by connecting plate motor, between connecting plate slide block and connecting plate voussoir, it is provided for drive connection plate voussoir move with the oil cylinder of drive connection plate compact heap clamping bellows expansion joint testpieces spacer flanger.
Bellows expansion joint mechanical test device the most according to claim 1, it is characterized in that, it is two to vertically arranged dual output rod oil cylinder that test drives with load maintainer, the piston rod of dual output rod oil cylinder and cylinder body are fixedly arranged on drive connection plate and top shoe respectively, and the every pair of dual output rod oil cylinder is about the axisymmetrical of drive connection plate；In the lower end of the piston rod of dual output rod oil cylinder, force cell and displacement transducer are installed, load and the real-time Detection & Controling of test displacement for testing.
Bellows expansion joint mechanical test device the most according to claim 1, is characterized in that, bellows expansion joint testpieces includes water circuit system, to bellows expansion joint testpieces internal offer test pressure；Pressure transmitter is installed on water circuit system, the pressure change during viewing test can be detected in real time, it is to avoid overvoltage test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620233214.8U CN205426509U (en) | 2016-03-23 | 2016-03-23 | Bellows expansion joint mechanical properties test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620233214.8U CN205426509U (en) | 2016-03-23 | 2016-03-23 | Bellows expansion joint mechanical properties test device |
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| Publication Number | Publication Date |
|---|---|
| CN205426509U true CN205426509U (en) | 2016-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620233214.8U Expired - Fee Related CN205426509U (en) | 2016-03-23 | 2016-03-23 | Bellows expansion joint mechanical properties test device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105588713A (en) * | 2016-03-23 | 2016-05-18 | 江苏省特种设备安全监督检验研究院 | Device for testing mechanical performance of bellow expansion joints |
-
2016
- 2016-03-23 CN CN201620233214.8U patent/CN205426509U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105588713A (en) * | 2016-03-23 | 2016-05-18 | 江苏省特种设备安全监督检验研究院 | Device for testing mechanical performance of bellow expansion joints |
| CN105588713B (en) * | 2016-03-23 | 2018-10-16 | 江苏省特种设备安全监督检验研究院 | A kind of bellows expansion joint mechanical test device |
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