CN2731437Y - Shearing tester for cast aluminium flange - Google Patents
Shearing tester for cast aluminium flange Download PDFInfo
- Publication number
- CN2731437Y CN2731437Y CN 200420108153 CN200420108153U CN2731437Y CN 2731437 Y CN2731437 Y CN 2731437Y CN 200420108153 CN200420108153 CN 200420108153 CN 200420108153 U CN200420108153 U CN 200420108153U CN 2731437 Y CN2731437 Y CN 2731437Y
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- Prior art keywords
- flange
- dolly
- pressure rings
- cast aluminium
- loading
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Abstract
The utility model relates to a cast aluminum flange shear testing machine which comprises a machine frame, a supporting device, a loading mechanism and a force measuring mechanism, wherein the supporting device, the loading mechanism and the force measuring mechanism are assembled on the machine frame and are used for a cast aluminum flange. The utility model has the technical point that supporting columns with shaft shoulders, which correspond to flange holes, are uniformly distributed on a basal disc of the supporting frame; a pressurizing ring of the loading mechanism is provided with a gravity balancing device and a guide device, and the center of a jack fixed on the pressurizing ring is right opposite to the center of a trolly body of a trolly on which a force sensor is carried; an upper contact of the force sensor is opposite to the lower part of a top beam connected with an upper cross beam of the machine frame. The utility model effectively solves the technical problems of the supporting, the loading, the force measurement, the loading, the unloading, etc. of a flange in the existing shear test. The utility model has the advantages of reasonable structural design, easy loading and unloading, convenient operation, accurate test result, time saving, labor saving, low labor intensity and high test efficiency; moreover, the flange can not be damaged.
Description
Technical field
The utility model relates to a kind of testing machine that is used to detect the metal casting shear resistance, particularly a kind of the detection made the cast aluminium flange shear testing maschine that flange soldering-free type corrugated tube temperature compensator is used, can it be by bearing the detection of 394KN shearing force to the cast aluminium flange, judge the flange of surveying whether qualified.This machine also can be used for detecting the shear resistance of metal castings such as cast iron flange.
Background technology
At present, by the flange soldering-free type corrugated tube temperature compensator that the cast aluminium flange is made, become and be used to compensate the expand with heat and contract with cold seal connector of distortion of transmission of electricity bus duct on the high voltage power transmission and transforming engineering.It is made up of corrugated tube, cast aluminium flange, internal protective cover and other annex.The straight wall outward flanging that is characterized in the corrugated tube two ends hooks flange, pushes down flange and O type ring by flange, tightens with companion flange and realizes sealing.Internal protective cover adopts with corrugated tube and is connected towards riveting.This product structure novelty, the reliability height, the trial-production difficulty is very big.Succeed in developing at home through repetition test, and reached the advanced level of international like product.Wherein the cast aluminium flange is a critical component, must carry out the detection of shear resistance, has only to detect qualifiedly it to be assembled into final products---flange soldering-free type corrugated tube temperature compensator.Did this class shear test in the past, and adopted common apparatus such as hydropress to finish mostly, the shearing force that can bear 394KN with its cast aluminium flange of judging that machining finishes.When detecting, the supporting and the charge and discharge operations of flange are cumbersome, and labour intensity is big, and inefficiency also can cause overload sometimes because of load operation is improper, damages flange.Therefore, conventional detection haves much room for improvement.
The utility model content
The purpose of this utility model provides a kind of cast aluminium flange shear testing maschine, it has solved the technical barriers such as supporting, loading, dynamometry and loading and unloading of flange in the shear test that exists in the prior art effectively, has reasonable in design, loading and unloading are easy, and easy to operate, testing result is accurate, do not damage flange, save time, laborsaving, labour intensity is low, the advantage that detection efficiency is high.
The purpose of this utility model is achieved in that this testing machine comprises frame and assembles fulcrum arrangement, loading and the force measuring machine of the cast aluminium flange on it, its technical essential is: the pillar of uniform and the corresponding tape spool shoulder of flange hole on the chassis of fulcrum arrangement, load maintainer is provided with gravity balance device and guide piece, the lifting jack center that is fixed on above the pressure rings faces the dolly vehicle body center that is loaded with force transducer, and the upper contact head top of force transducer is facing to the below of the back timber that links to each other with the frame entablature.
On the chassis of described fulcrum arrangement guide rail is housed, the dolly that transports flange moves along guide rail, transports to be fixed with the little fork of accepting flange on the dolly, and flange rides over to stick for a short time and moves forward and backward.
The pressure rings of described load maintainer is provided with gravity balance device, the wire rope that comprises the balance bob of the strap clamp plate of symmetric arrangement, balance bob is linked to each other with pressure rings by pulley, utilizes bearing bracket stand to be assembled in hand wheel shaft on the entablature, to be fixed on the large bevel gear on the same hand wheel shaft, the cone pinion that is assembled in same angular wheel shaft two ends that is meshed with large bevel gear with pulley.
The pressure rings of described load maintainer is provided with guide piece, is fixed on orienting sleeve on the pressure rings along the moving axially of guide pole, and guide pole is fixed on the guiding trestle of framework pillar.
The described dolly that is loaded with force transducer is made up of vehicle body, vehicle wheel frame and wheel, and dolly moves back and forth along the track that is fixed on the framework pillar, when the dolly deorbit moves up, force transducer is held up, and the upper contact head of sensor is contacted with back timber.
The position block that dolly vehicle body center and lifting jack center are aligned is set on the track of described framework pillar.
Since when the utility model loads by gravity balance device and guide piece, so can be like a cork with very heavy pressure rings and on the internal diameter edge of the positive flange of jack pair exert pressure.Because of the lifting jack center that is fixed on the pressure rings faces the dolly vehicle body center that is loaded with force transducer, the top of force transducer upper contact head is facing to the back timber that is fixed on the frame entablature, so the pressure of lifting jack is just sheared flange by pressure rings when loading, and by the numerical value of the display of force measuring machine indication shearing force, overload can not take place and damage flange in the moving operation of lifting jack armrest.Therefore, this device has solved the technical barriers such as supporting, loading, dynamometry and loading and unloading of flange in the shear test that exists in the prior art effectively.Compared with prior art, its structural design is more reasonable, and loading and unloading are easily, and are easy to operate, not only guaranteed the accuracy of testing result, and save time, laborsaving, alleviated labour intensity, significantly improved detection efficiency.The shearing force that can the cast aluminium flange that utilize this device to judge that machining finishes bear 394KN, do not need control flange inside whether to have the type and the size of casting flaw, defective, as long as it can pass through this shear test, and the pore that does not have size to exceed standard again on the outside surface just can confirm that this flange is qualified.Just can be used to be assembled into final products through detecting qualified flange---flange soldering-free type corrugated tube temperature compensator.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is a kind of concrete structure synoptic diagram of the utility model.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the left view of Fig. 1.
Embodiment
Describe concrete structure of the present utility model in detail according to Fig. 1-3.This testing machine comprises frame and assembles fulcrum arrangement, load maintainer and the force measuring machine of the cast aluminium flange on it.
Frame is by entablature 4, and 5, four columns 7 of sill and back timber 18 are formed, and are assembled into one with coupling bolt 3 and 20.Entablature 4, sill 5 all are made up of two channel-section steels 1 and two transverse slats 6.The xsect of four columns 7 is the T type, is made up of riser 8 and gusset 9.Four transverse slats 6 become former and later two rectangle sheet frames 2 with four risers, 8 first assembly weldings, and then are assembled into frame with bolt 3 and channel-section steel 1.There is flange 19 at the two ends of back timber 18, are fixed on by bolt 20 on the channel-section steel 1 of entablature 4.
Fulcrum arrangement comprises the chassis that is fixed on the sill 5 10 and is distributed on pillar 11 on 10 circumference of chassis, and pillar 11 is corresponding with flange hole and have a shaft shoulder 13.Owing to having the gap between pillar 11 uniform on the chassis 10 of fulcrum arrangement and the flange hole, institute thinks that centering is convenient, a size and cast aluminium flange rim of the mouth can also be set the centering ring (not shown) of matching relationship, exactly flange is fixed on the detection position by the centering ring.
During use, the flange hole of cast aluminium flange 12 is enclosed within on the pillar 11, by the shaft shoulder 13 supportings.Each nearly weighs 20 kilograms because of the cast aluminium flange, and loading and unloading are effort relatively, transports dolly 41 so be provided with on the chassis 10 of fulcrum arrangement.Dolly 41 can slide along guide rail 42.Guide rail 42 two ends are fixed on the chassis 10, and four wheels 43 can roll on the chassis.The little fork 44 of accepting flange 12 is housed on the dolly vehicle body, and loading and unloading are during flange 12, as long as flange 12 one is taken on the little fork 44, just can promote dolly 41 flange 12 is moved forward and backward along guide rail 42.Little fork 44 usefulness sebific ducts parcel can prevent that flange 12 from damaging.
Load maintainer and force measuring machine comprise pressure rings 14, lifting jack 15, be contained in the force transducer 17 on the dolly vehicle body 16 and be shown to the parts such as display 25 of flange 12 loading force values.The center that is fixed on the lifting jack 15 above the pressure rings 14 faces the center of the dolly vehicle body 16 that is loaded with force transducer 17, and the upper contact head top of force transducer 17 is facing to the below of the back timber 18 that is connected with frame entablature 4.The dolly that is loaded with force transducer 17 is made up of vehicle body 16, vehicle wheel frame 21 and wheel 22, and wheel 22 moves back and forth along the track 23 that is fixed on the framework pillar 7.The position block 24 that the center of the center make dolly vehicle body 16 and lifting jack 15 of being provided with on the track 23 of framework pillar 7 aligns.Position block 24 can guarantee the accuracy that resets after dolly is moved to the left to make the force transducer on the dolly keep concentric basically with lifting jack, unbalance loading can not take place.The purpose that the sensor dolly is moved to the left is a vacating space when moving up for lifting jack 15 and pressure rings 14, so that raise the detected flange 12 of back loading and unloading in pressure rings 14.When lifting jack 15 makes progress jack-up, first jack-up dolly vehicle body 16, together with moving on the force transducer 17, after the upper contact head of force transducer 17 arrived at back timber 18, lifting jack 15 just began to load to flange 12, forms shearing moment.Display 25 just shows force transducer 17 added power values, when applying the pressure of 394KN, promptly stops to load.
For the deadweight of eliminating lifting jack 15 and pressure rings 14 influence to ergometry, also reach simultaneously and do not move heavy lifting jack 15 and pressure rings 14, just can load and unload the purpose that flange 12 is finished detection easily, also be provided with gravity balance device and guide piece.
The gravity balance device that is provided with on the pressure rings 14 comprise symmetric arrangement the balance bob that has clamping plate 29 26, the wire rope 27 that balance bob 26 is linked to each other with pressure rings 14 by pulley 28, utilize bearing 33 to be assembled in hand wheel shaft 35 on the channel-section steel 1 of entablature 4, to be fixed on the large bevel gear 31 on the same hand wheel shaft 32, the parts such as cone pinion 34 that are assembled in same angular wheel shaft 35 two ends that are meshed with large bevel gear 31 with pulley 28.Angular wheel shaft 35 is assembled among the bearing of the bearing bracket stand of stretching back timber 18 both sides 36.The both sides of balance bob 26 have clamping plate 29, and riser 8 guiding of forward rear column 7 can move by easy on and off, do not block and do not shake.The weight of each balance bob 26 is about half of lifting jack 15 and pressure rings 14 general assembly (TW)s.Handwheel 30 is and pulley 28 that large bevel gear 31 is fixed on the hand wheel shaft 32 together.When rotating handwheel 30, drive pressure rings 14 by the friction force between pulley 28 and the wire rope 27 and move up and down.Two cone pinions respectively with the left hand and right hand wheel shaft on large bevel gear 31 engagements, two handwheels 30 are rotated synchronously, can guarantee that left and right sides deflection does not take place pressure rings 14.When the left hand wheel changeed counterclockwise, right hand wheel then changeed clockwise, and at this moment pressure rings 14 is just upwards lifted, otherwise just to pressing down.
The guide piece that is provided with on pressure rings 14 comprises parts such as orienting sleeve 40, guide pole 37.The orienting sleeve 40 that wherein is fixed on above the pressure rings 14 is assembled on the guide pole 37, and moves axially along guide pole 37, and guide pole 37 utilizes fastening bolt 38 to be fixed on the guiding trestle 39 of framework pillar 7.Utilizing this guide piece just can guarantee that pressure rings 14 moves up and down rocks before and after the Shi Buhui.
The principle of work and the operation steps of this device are as follows:
1, raises pressure rings 14
Before raising pressure rings 14, at first to push the sensor dolly to left.Then, both hands are operated two handwheels 30 simultaneously, and the left hand wheel is changeed counterclockwise, and right hand wheel changes clockwise.At this moment, with handwheel 30 coaxial left and right pulley 28 just drive wire rope 27 and move, pressure rings 14 is upwards lifted together with the lifting jack on it 15.Left and right balance bob 26 falls, till lifting jack 15 is during near back timber 18.At this moment, between pressure rings 14 and pillar 11, enough spaces have just been arranged, be convenient to the detected flange 12 of packing into.Because pressure rings 14 and the general assembly (TW) of lifting jack 15 and being equal in weight of two balance bobs 26, and there is friction force between handwheel 32 and the bearing 33, so pressure rings 14 can be parked in the optional position, can not fall voluntarily, therefore for the operating personnel of the flange 12 of packing into, not have any potential safety hazard.
In addition, be contained in two cone pinions 34 on the same angular wheel shaft 35, respectively with left and right large bevel gear 31 engagements, thereby guaranteed the synchronous rotation of left and right handwheel, the corner of left and right pulley 28 equates, the height that the wire rope 27 on both sides promotes is identical, makes pressure rings 14 the crooked phenomenon in the left and right sides can not occur.Orienting sleeve 40 on the pressure rings 14 when pressure rings is raised, moves along guide pole 37 simultaneously, has guaranteed before and after pressure rings 14 is not crooked.Therefore, this device can reach operation freely, the requirement stably of rising and falling.Only need just can make very heavy pressure rings 14 and lifting jack 15 finish the action that loads and unload by light operation.
2, the detected flange 12 of packing into
Tested flange 12 is ridden on the little fork 44 that transports dolly 41,, dolly 41 is slided along guide rail 42 to the center with have gentle hands pushing manipulation orchid 12.After the opposite personnel catch flange 12, take, in double harness flange hole is aimed at pillar 11 to the whereabouts, flange is held by the shaft shoulder on the pillar 11 13 from sticking for a short time.Because the about 20Kg of flange deadweight, put it to the detection position and get on and require great effort very much if lifting by two people.Not only waste a lot of man-hours, but also easily the flange surface that processes is damaged.Adopt dolly to transport flange 12, alleviated labour intensity greatly.The little fork 44 that particularly has on the car makes the loading and unloading push-and-pull all very convenient, has improved efficiency.In addition, also overlapping sebific duct on the little fork 44, can protect flange 12 effectively not by gouge.
3, falling pressure rings 14 drops on the flange 12
When the commentaries on classics clockwise of left hand wheel, when right hand wheel changeed counterclockwise, left and right pulley just drove wire rope pressure rings 14 is lowered together with the lifting jack on it 15, drops on the flange 12.Because there are certain clearance in flange hole and pillar 11, so when being placed on flange 12 on the shaft shoulder 13 of pillar 11 at every turn, be difficult to all to guarantee that flange 12 and relative position between the pressure rings 14 are concentric, the virgin state that will cause each time test like this is unanimity not too, influences test findings.In order to overcome this disadvantage, before pressure rings 14 falls, can on flange 12, put a centering ring earlier, the external diameter of centering ring matches with the rim of the mouth of flange.When pressure rings 14 falls, allow the cylindrical of pressure rings 14 pass the endoporus of centering ring, and then drop on the flange 12, thereby guaranteed concentricity between pressure rings 14 and the flange 12, guaranteed the consistance of test findings.
4, force transducer 17 is placed on the centre of this device
After pressure rings 14 and lifting jack 15 fall, move right just for the sensor dolly and vacateed the space.On the track 23 of sensor dolly, be provided with position block 24, when dolly moves to right when running into block, the force transducer 17 on the car just in time runs to the centre of this device.At this moment, the upper contact head of force transducer 17 faces the center of back timber 18, and the center of dolly vehicle body 16 faces the center of the push rod of lifting jack 15.So, chassis 10 from sill 5 is counted, and upwards the flange 12 through being held in the palm by pillar 11 arrives pressure rings 14, lifting jack 15, sensor dolly vehicle body 16, force transducer 17 again, until back timber 18, these parts just all have been on the axis of this device.The display 25 that links to each other with force transducer 17 just demonstrates lifting jack 15 and is added in power value on the flange 12.The range of the force transducer 17 that present embodiment adopts is 50 tons, 1.5 grades of accuracy classes.
5, with lifting jack 15 reinforcings
Manual operation lifting jack 15 makes the push rod jack-up sensor dolly vehicle body 16 that rises gradually, and the vehicle body holder force transducer 17 and moved on together, only needs mobile 2mm, and the upper contact head of force transducer 17 has just been run into back timber 18.At this moment, though the wheel 22 of sensor dolly has left track 23, dolly can not tilt, and continues to give lifting jack 15 reinforcings, and the power value of display 25 just rises to specified 394KN by 0.This internal force comes balance by 4,5 and four frames that column 7 constitutes of upper and lower crossbeam.Adopt manual lifting jack 15 reinforcings, can not resemble easy appearance overload other afterburning mode.
6, give lifting jack 15 unloadings after the pressurize
After shearing force that flange 12 bears 394KN continues 1 minute, just can give lifting jack 15 unloadings, make the push rod whereabouts.So the power value that display 25 shows is reduced to 0 gradually.At this moment the upper contact head of force transducer 17 just in time leaves back timber 18.When the push rod of lifting jack 15 continued to fall, the force transducer 17 and the sensor dolly that are headed on by it also fell together, and sensor dolly wheel 22 is fallen back to again on the track 23.If toward the whereabouts, it just leaves with dolly vehicle body 16 push rod again.At this moment, as long as push rod does not influence the sensor dolly and is moved to the left, lifting jack 15 just can be kept this state, and push rod needn't continue to fall.
7, take out flange 12 and check that flawless is arranged
The sensor dolly is pushed open left, made dolly vehicle body 16 leave the center of this device, upwards raise vacating space for pressure rings 14 and lifting jack 15.At this moment just can rotate left and right handwheel 30 and raise pressure rings 14, expose detected flange 12.Take off centering ring earlier, again flange 12 is placed on to transport on the dolly and pulls out, check that with the naked eye there do not have crackle to be to be qualified.The whole operation process leaves it at that.
Claims (6)
1, a kind of cast aluminium flange shear testing maschine, comprise frame and assemble fulcrum arrangement, loading and the force measuring machine of the cast aluminium flange on it, it is characterized in that: the pillar of uniform and the corresponding tape spool shoulder of flange hole on the chassis of fulcrum arrangement, load maintainer is provided with gravity balance device and guide piece, the lifting jack center that is fixed on above the pressure rings faces the dolly vehicle body center that is loaded with force transducer, and the top of force transducer upper contact head is facing to the below of the back timber that links to each other with the frame entablature.
2, cast aluminium flange shear testing maschine according to claim 1, it is characterized in that: on the chassis of described fulcrum arrangement guide rail is housed, the dolly that transports flange moves along guide rail, transports to be fixed with the little fork of accepting flange on the dolly, and flange rides over to stick for a short time and moves forward and backward.
3, cast aluminium flange shear testing maschine according to claim 1, it is characterized in that: the pressure rings of described load maintainer is provided with gravity balance device, it comprises the balance bob of the strap clamp plate of symmetric arrangement, link to each other by pulley balance bob with pressure rings wire rope, utilizes bearing bracket stand to be assembled in hand wheel shaft on the entablature, to be fixed on the large bevel gear on the same hand wheel shaft, the cone pinion that is assembled in same angular wheel shaft two ends that is meshed with large bevel gear with pulley.
4, cast aluminium flange shear testing maschine according to claim 1, it is characterized in that: the pressure rings of described load maintainer is provided with guide piece, its orienting sleeve that is fixed on above the pressure rings is assembled on the guide pole, and move axially along guide pole, guide pole is fixed on the guiding trestle of framework pillar.
5, cast aluminium flange shear testing maschine according to claim 1, it is characterized in that: the described dolly that is loaded with force transducer is made up of vehicle body, vehicle wheel frame and wheel, dolly moves back and forth along the track that is fixed on the framework pillar, when the dolly deorbit moves up, force transducer is held up, the upper contact head of sensor is contacted with back timber.
6, cast aluminium flange shear testing maschine according to claim 1 or 5 is characterized in that: the position block that dolly vehicle body center and lifting jack center are aligned is set on the track of described framework pillar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420108153 CN2731437Y (en) | 2004-09-29 | 2004-09-29 | Shearing tester for cast aluminium flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420108153 CN2731437Y (en) | 2004-09-29 | 2004-09-29 | Shearing tester for cast aluminium flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2731437Y true CN2731437Y (en) | 2005-10-05 |
Family
ID=35051770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420108153 Expired - Fee Related CN2731437Y (en) | 2004-09-29 | 2004-09-29 | Shearing tester for cast aluminium flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2731437Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104438969A (en) * | 2014-11-27 | 2015-03-25 | 中国电建集团成都勘测设计研究院有限公司 | Hammer hole indium steel wire shearing device |
| CN106872291A (en) * | 2017-03-03 | 2017-06-20 | 浙江大学 | Masonry cuts pressure device and masonry cuts pressure composite testing method |
-
2004
- 2004-09-29 CN CN 200420108153 patent/CN2731437Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104438969A (en) * | 2014-11-27 | 2015-03-25 | 中国电建集团成都勘测设计研究院有限公司 | Hammer hole indium steel wire shearing device |
| CN106872291A (en) * | 2017-03-03 | 2017-06-20 | 浙江大学 | Masonry cuts pressure device and masonry cuts pressure composite testing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |