CN104155193B - A kind of Elevator Principal Axis test device - Google Patents
A kind of Elevator Principal Axis test device Download PDFInfo
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- CN104155193B CN104155193B CN201410402904.7A CN201410402904A CN104155193B CN 104155193 B CN104155193 B CN 104155193B CN 201410402904 A CN201410402904 A CN 201410402904A CN 104155193 B CN104155193 B CN 104155193B
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- force
- lifting
- principal axis
- test device
- hydraulic cylinder
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A kind of Elevator Principal Axis test device, including the work platforms being fixedly installed, described work platforms is provided with carrier, and the side of described carrier is provided with lift apparatus；Described carrier includes two pedestals being parallel to each other, and described pedestal top is provided with the loading end of two coaxial arcs, is provided with the fixed mount for assisting described pedestal outside described pedestal；Described lift apparatus includes the lifting hydraulic cylinder being fixedly installed on described work platforms, and it being articulated with the lifting arm of force on described lifting hydraulic cylinder piston, described lifting hydraulic cylinder connects the liquid feed device with hydraulic pressure instruction device driving this lifting hydraulic cylinder to run.The bearing torque of Validity Test drive shaft of the present invention, it is ensured that the qualified drive shaft that escalator uses during fabrication.
Description
Technical field
The present invention relates to a kind of Elevator Principal Axis test device, belong to elevator and manufacture field.
Background technology
Escalator, because of its bigger bearing capacity, is widely used in the public arenas such as market.The occasion related to due to escalator is respectively provided with bigger flow of the people, and therefore the security performance of escalator requires high.It is respectively mounted a large amount of safety monitoring assembly at the escalator used at present, has once broken down for escalator, shut down in time, protect passenger survival safety.But these safety monitoring assemblies are installed the most, also function only as the effect mended the fold after the sheep is lost, are intended to just play a role after escalator breaks down.
The main shaft of escalator is one of most important parts of escalator, and it is for connecting the driver of escalator and the step of escalator, and the intensity of main shaft plays considerable effect to the safety of escalator.Main shaft conventional in the market is all made of cast iron, owing to there being a large amount of detection in casting process, therefore go to toward all without detection in installation to escalator, but main shaft installs the accessories such as a large amount of gears after the casting additional likely can produce injury to main shaft, causes main axe intensity to decline or produces potential safety hazard.The test equipment of escalator spindle machine intensity does not the most also occur, the Chinese patent of Patent No. 201110207576 discloses a kind of Working condition experimental device of automotive front driving shaft, possesses similar drive shaft strength test function, but device major experimental purpose disclosed in this patent is for detection automobile front drive moving axis, and structure is complicated, it is impossible to be directly used in the escalator drive shaft that size is much bigger and intensity is much bigger.
Summary of the invention
The present invention solves prior art problem, it is provided that a kind of device escalator drive shaft mechanical strength tested by destructive test.
The technical scheme is that a kind of Elevator Principal Axis test device, including the work platforms being fixedly installed, described work platforms is provided with carrier, the side of described carrier is provided with lift apparatus；Described carrier includes two pedestals being parallel to each other, and described pedestal top is provided with the loading end of two coaxial arcs, is provided with the fixed mount for assisting described pedestal outside described pedestal；Described lift apparatus includes the lifting hydraulic cylinder being fixedly installed on described work platforms, and it being articulated with the lifting arm of force on described lifting hydraulic cylinder piston, described lifting hydraulic cylinder connects the liquid feed device with hydraulic pressure instruction device driving this lifting hydraulic cylinder to run.
As preferably, described fixed mount and the described pedestal nearest with this fixed mount being provided with some fixed vias, the described fixed via being positioned on described fixed mount and the described fixed via being positioned on described pedestal are the most concentric；Gag lever post can be installed in described fixed via.
As preferably, described gag lever post is screw rod and the nut of fixing described screw rod.
As preferably, one end of the nearly described pedestal of described lifting force arm rest is provided with the central axis of some lifting through holes, described lifting through hole and described fixed via on same circumference.
As preferably, described lifting hydraulic cylinder is articulated with the upper surface of described work platforms.
As preferably, the described lifting arm of force is radially arranged along the arc of described loading end.
As preferably, described fixed mount being provided with some fixed vias, one end of the nearly described pedestal of described lifting force arm rest is provided with some lifting through holes；Described fixed via is identical with the aperture of described lifting through hole, and hole axle is on same circumference.
As preferably, described loading end is provided above matching with described loading end and forms the shaft-cup of circular shaft bore.
As preferably, in described shaft-cup, it is provided with bearing.
As preferably, described lifting arm of force side is provided with a par；Described par one end is fixedly installed on the described lifting arm of force, and the other end is parallel and unsettled with the described lifting arm of force on one's own time.
The drive shaft of cast iron is sampled by the present invention, carries out destructive testing, for testing the mechanical strength of this batch drive shaft.After the accessories such as drive shaft installation gear, drive shaft is positioned on the loading end of pedestal, the gear being arranged at drive shaft one end is fixed with fixed mount, the one end connecting the lifting arm of force fixed by the gear being arranged at the drive shaft other end, then the movable end promoting the arm of force is lifted by hydraulic cylinder, owing to drive shaft is made of cast iron, therefore the physical characteristic of drive shaft is the hardest, it is difficult to deformation and extremely brittle, when hydraulic cylinder puts on the power of drive shaft more than time to a certain degree by promoting the arm of force, drive shaft is the most broken, now the power of hydraulic cylinder is converted into by the arm of force and puts on drive shaft, it is the peak torque that drive shaft can be born.Need in use due to drive shaft to bear great moment of torsion, the requirement that therefore drive shaft bears moment of torsion is high, the setting promoting the arm of force can greatly reduce the requirement of hydraulic cylinder, can be obtained by lever principle simultaneously, and the setting promoting the arm of force is easier to the control of the trace to drive shaft.
Owing to, in test process, drive shaft is fixed by fixed via and lifting through hole, therefore in test process, fixed via and lifting through hole bear bigger power.On the basis of the test for the purpose of moment of torsion, fixed via on fixed mount and the central axis promoting through hole on the lifting arm of force are in same circumference, can make fixed via and promote that through hole can be the fewest bear beyond torque direction by force component, to reduce test process to fixed via and the dimensional requirement that promotes through hole.
And lifting force wall is radially arranged along the arc of loading end, i.e. the direction of motion of lifting force wall is to circle around the central shaft of drive shaft, namely makes drive shaft be subjected only to the power of torque direction, it is ensured that the accuracy of test.
The shaft-cup and the bearing that arrange on pedestal can ensure drive shaft stress the most in the axial direction so that the result of test is the moment of torsion that drive shaft can be born, without making drive shaft produce radially deformation when stress.
Under normal circumstances, the arm of force that promotes of test device can be considered as the most all hard, will not deform upon, this respect all will not be accounted for by the most traditional measurement process, but in actual use, carries such heavy load and the material that do not deforms upon there's almost no, especially after using repeatedly, promoting the arm of force and have certain metal fatigue, after its carrying, deformation becomes apparent from, and does not the most consider that this deformation can cause measurement to have bigger error.The present invention is simply by promoting a piece par of increase on the arm of force, and par one end is fixing with the lifting arm of force to be connected, and the other end is unsettled.When promoting arm of force carrying and deforming upon, par is unsettled due to one end, do not stress without deformation, therefore par free end and the distance promoted between the arm of force are the deformation quantity promoting the arm of force, by arranging scale or reference on the lifting arm of force, can learn and promote the deformation quantity of the arm of force and need the amount compensated.
In sum, the invention have the advantages that
1, the bearing torque of Validity Test drive shaft, it is ensured that the qualified drive shaft that escalator uses during fabrication；
2, drive shaft is not the most by the component of external force of moment of torsion in test process, and test result is accurate；
3, simple in construction, low cost of manufacture.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram.
In figure, 1, work platforms, 2, pedestal, 3, fixed mount, 4, gag lever post, 5, promote the arm of force, 6, hydraulic cylinder, 7, shaft-cup, 8, drive shaft, 9, par, 10, scale.
Detailed description of the invention
With embodiment, the invention will be further described below.
Embodiment one:
A kind of Elevator Principal Axis test device, including the work platforms 1 being fixedly installed, work platforms 1 is provided with carrier, and the side of carrier is provided with lift apparatus；Carrier includes that two pedestals being parallel to each other 2, pedestal 2 top are provided with the loading end of two coaxial arcs, is provided with the fixed mount 3 for assisting pedestal 2 outside pedestal 2；Being provided with 3 fixed vias on fixed mount 3 and the pedestal 2 nearest with this fixed mount 3, the fixed via being positioned on fixed mount 3 and the fixed via being positioned on pedestal 2 are the most concentric；Can install gag lever post 4 in fixed via, gag lever post 4 is the nut of screw rod and standing screw.
Lift apparatus includes the lifting hydraulic cylinder 6 being articulated with on work platforms 1, and is articulated with the lifting arm of force 5 on lifting hydraulic cylinder 6 piston, and lifting hydraulic cylinder 6 connects the liquid feed device with hydraulic pressure instruction device driving this lifting hydraulic cylinder 6 to run.The lifting arm of force 5 is radially arranged along the arc of loading end.Promote the arm of force 5 and be provided with 2 lifting through holes near one end of pedestal 2, promote the central axis of through hole and fixed via on same circumference.
Promote the arm of force 5 side and be provided with a par 9；Par 9 one end is fixedly installed on the lifting arm of force 5, the other end is parallel and unsettled with the lifting arm of force 5 on one's own time, arranges the side of par 9 at the lifting arm of force 5, and the free end near par 9 is provided with scale 10, non-working time, the free end of par 9 points to the initial scale of scale 10.
Loading end is provided above matching with loading end and forms the shaft-cup 7 of circular shaft bore, is provided with bearing in shaft-cup 7.
After the accessories such as drive shaft 8 installation gear, drive shaft 8 is positioned on the loading end of pedestal 2, the gear being arranged at drive shaft 8 one end is fixed with fixed mount 3, the one end connecting the lifting arm of force 5 fixed by the gear being arranged at drive shaft 8 other end, then the movable end promoting the arm of force 5 is lifted by hydraulic cylinder 6, until drive shaft 8 ruptures, now also need to read from scale 10 maximum scale that par 9 points to.And the maximum support power that hydraulic cylinder 6 discharges, convert by promoting the arm of force 5 by lever principle, and compensated by the reading in scale 10, the peak torque bearing capacity of drive shaft 8.
Claims (9)
1. an Elevator Principal Axis test device, including the work platforms (1) being fixedly installed, it is characterised in that: being provided with carrier on described work platforms (1), the side of described carrier is provided with lift apparatus；Described carrier includes two pedestals being parallel to each other (2), and described pedestal (2) top is provided with the loading end of two coaxial arcs, and described pedestal (2) outside is provided with the fixed mount (3) for assisting described pedestal (2)；Described lift apparatus includes the lifting hydraulic cylinder (6) being fixedly installed on described work platforms (1), and the lifting arm of force (5) being articulated with on described lifting hydraulic cylinder (6) piston, described lifting hydraulic cylinder (6) connects the liquid feed device with hydraulic pressure instruction device driving this lifting hydraulic cylinder (6) to run；The described lifting arm of force (5) side is provided with a par (9)；Described par (9) one end is fixedly installed on the described lifting arm of force (5), and the other end is parallel and unsettled with the described lifting arm of force (5) on one's own time.
Elevator Principal Axis test device the most according to claim 1, it is characterized in that: be provided with some fixed vias on described fixed mount (3) and the described pedestal (2) nearest with this fixed mount (3), the described fixed via being positioned on described fixed mount (3) and the described fixed via being positioned on described pedestal (2) are the most concentric；Gag lever post (4) can be installed in described fixed via.
Elevator Principal Axis test device the most according to claim 2, it is characterised in that: described gag lever post (4) is screw rod and the nut of fixing described screw rod.
4. according to Elevator Principal Axis test device described in Claims 2 or 3, it is characterised in that: the described lifting arm of force (5) is provided with the central axis of some lifting through holes, described lifting through hole and described fixed via on same circumference near one end of described pedestal (2).
Elevator Principal Axis test device the most according to claim 1, it is characterised in that: described lifting hydraulic cylinder (6) is articulated with the upper surface of described work platforms (1).
Elevator Principal Axis test device the most according to claim 5, it is characterised in that: the described lifting arm of force (5) is radially arranged along the arc of described loading end.
Elevator Principal Axis test device the most according to claim 6, it is characterised in that: being provided with some fixed vias on described fixed mount (3), the described lifting arm of force (5) is provided with some lifting through holes near one end of described pedestal (2)；Described fixed via is identical with the aperture of described lifting through hole, and hole axle is on same circumference.
Elevator Principal Axis test device the most according to claim 1, it is characterised in that: described loading end is provided above matching with described loading end and forms the shaft-cup (7) of circular shaft bore.
Elevator Principal Axis test device the most according to claim 8, it is characterised in that: described shaft-cup is provided with bearing in (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410402904.7A CN104155193B (en) | 2014-08-14 | 2014-08-14 | A kind of Elevator Principal Axis test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410402904.7A CN104155193B (en) | 2014-08-14 | 2014-08-14 | A kind of Elevator Principal Axis test device |
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| CN104155193A CN104155193A (en) | 2014-11-19 |
| CN104155193B true CN104155193B (en) | 2016-08-17 |
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| CN201410402904.7A Expired - Fee Related CN104155193B (en) | 2014-08-14 | 2014-08-14 | A kind of Elevator Principal Axis test device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108760530A (en) * | 2018-04-28 | 2018-11-06 | 西北工业大学（张家港）智能装备技术产业化研究院有限公司 | Weld strength measuring device |
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| JPH0387601A (en) * | 1989-08-31 | 1991-04-12 | Saginomiya Seisakusho Inc | Twist angle detecting device in rotary twisting tester |
| JPH0752150B2 (en) * | 1989-09-19 | 1995-06-05 | 日本原子力研究所 | Electric wire / cable insulation deterioration diagnosis method and measuring device used therefor |
| JP4089034B2 (en) * | 1998-09-28 | 2008-05-21 | ソニー株式会社 | Torsion testing machine |
| WO2000037915A1 (en) * | 1998-12-22 | 2000-06-29 | Bishop Manufacturing Technology Limited | Joint testing method |
| CN201408099Y (en) * | 2009-04-30 | 2010-02-17 | 上海标五高强度紧固件有限公司 | Twisting moment test bed for measuring twisting moment of fastener |
| CN201751832U (en) * | 2010-07-13 | 2011-02-23 | 陈建锋 | Football foot nail lateral impact, thrust and torsion test machine |
| CN102128697B (en) * | 2010-12-15 | 2012-04-04 | 西安理工大学 | High-speed motorized spindle non-contact loading force and torque testing device and method |
| CN102175544B (en) * | 2010-12-25 | 2012-09-05 | 中北大学 | Frictional wear simulation test bench of wobble friction pair |
| JP5804469B2 (en) * | 2011-03-31 | 2015-11-04 | 学校法人立命館 | Multi-axis load test apparatus and method |
| CN102305706B (en) * | 2011-07-22 | 2013-04-24 | 耐世特凌云驱动系统（芜湖）有限公司 | Working condition experimental device of automotive front driving shaft |
| CN102323163B (en) * | 2011-08-16 | 2013-06-05 | 浙江伟星新型建材股份有限公司 | Pipe fitting tightening torque tester |
| CN202267633U (en) * | 2011-09-28 | 2012-06-06 | 湖北航天技术研究院总体设计所 | Torsion bar measuring device |
| TWI555979B (en) * | 2011-09-30 | 2016-11-01 | 國際計測器股份有限公司 | Torsion testing device |
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| CN103245571B (en) * | 2013-05-02 | 2015-01-28 | 大连理工大学 | Rotary shear failure performance determination test device of asphalt mixture |
| CN203324120U (en) * | 2013-06-05 | 2013-12-04 | 宿迁傲达康复合材料有限公司 | Torsion test machine for frame of carbon fiber battledore |
| CN103278399A (en) * | 2013-06-19 | 2013-09-04 | 南昌航空大学 | Experimental device for testing elasticity modulus G of material |
| CN203534916U (en) * | 2013-09-04 | 2014-04-09 | 苏州上洋机电科技有限公司 | Detection device for torsional strength of dust collector hose |
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2014
- 2014-08-14 CN CN201410402904.7A patent/CN104155193B/en not_active Expired - Fee Related
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