CN104155193A - Testing apparatus for main shaft of elevator - Google Patents
Testing apparatus for main shaft of elevator Download PDFInfo
- Publication number
- CN104155193A CN104155193A CN201410402904.7A CN201410402904A CN104155193A CN 104155193 A CN104155193 A CN 104155193A CN 201410402904 A CN201410402904 A CN 201410402904A CN 104155193 A CN104155193 A CN 104155193A
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- lifting
- force
- hydraulic cylinder
- proving installation
- principal axis
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Abstract
The invention provides a testing apparatus for the main shaft of an elevator. The testing apparatus comprises a fixedly arranged working platform; a bearing rack is arranged on the working platform, and one side of the bearing rack is provided with a lifting device; the bearing rack comprises two mutually parallel shaft brackets, the top ends of the shaft brackets are provided with two co-axial arced bearing surfaces, and the outer sides of the shaft brackets are provided with fixed mounts used for assisting the shaft brackets; and the lifting device comprises a lifting hydraulic cylinder fixedly arranged on the working platform and a lifting moment arm hinged with the piston of the lifting hydraulic cylinder, wherein the lifting hydraulic cylinder is connected with a liquid supplying device which drives the lifting hydraulic cylinder to run and is equipped with a hydraulic pressure indicating device. The testing apparatus provided by the invention can effectively test the bearing torque of the driving main shaft and guarantees that qualified driving main shafts are used during manufacturing of escalators.
Description
Technical field
The present invention relates to a kind of Elevator Principal Axis proving installation, belong to elevator and manufacture field.
Background technology
Escalator, because of its larger bearing capacity, is widely used in the public arenas such as market.The occasion relating to due to escalator all has larger flow of the people, and therefore the security performance of escalator requires high.At the escalator using, a large amount of safety monitoring assemblies are all installed at present, once break down for escalator, have been shut down in time, protection passenger life security.But it is many again that these safety monitoring assemblies are installed, and also only plays the effect of mending the fold after the sheep is lost, all to arrive escalator and break down and just play a role afterwards.
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 security of escalator.Conventional main shaft is all made of cast iron in the market, owing to there being a large amount of detections in casting process, therefore go to toward all without detection being mounted to escalator, likely can produce injury to main shaft but main shaft installs the accessories such as a large amount of gears additional after casting completes, cause main axe intensity to decline or produce potential safety hazard.Also there is not in the market the testing apparatus of escalator spindle machine intensity, the patent No. is that 201110207576 Chinese patent discloses a kind of Working condition experimental device of automotive front driving shaft, possesses similar driving shaft strength test function, but the main experiment purpose of the disclosed device of this patent is for detecting automobile front drive moving axis, and complex structure, cannot 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, for solving prior art problem, provides a kind of device of escalator drive shaft physical strength being tested by destructive test.
Technical scheme of the present invention is: a kind of Elevator Principal Axis proving installation, comprise the workbench being fixedly installed, and on described workbench, be provided with carrier, a side of described carrier is provided with lift apparatus; Described carrier comprises two pedestals that are parallel to each other, and described pedestal top is provided with the loading end of two coaxial arcs, and described pedestal arranged outside is useful on the fixed mount of auxiliary described pedestal; Described lift apparatus comprises the lifting hydraulic cylinder being fixedly installed on described workbench, and being articulated with the lifting arm of force on described lifting hydraulic cylinder piston, described lifting hydraulic cylinder is connected with the liquid feed device with hydraulic pressure indicating device that drives this lifting hydraulic cylinder operation.
As preferably, described fixed mount and with the nearest described pedestal of this fixed mount on be provided with some fixed vias, be positioned at the described fixed via on described fixed mount and be positioned at described fixed via on described pedestal concentric between two; Can mounting limit bar in described fixed via.
As preferably, described gag lever post is the nut of screw rod and fixing described screw rod.
As preferably, one end of the nearly described pedestal of described lifting force arm rest is provided with some lifting through holes, and the central axis of described lifting through hole and described fixed via is on same circumference.
As preferably, described lifting hydraulic cylinder is articulated with the upper surface of described workbench.
As preferably, the described lifting arm of force radially arranges along the arc of described loading end.
As preferably, on described fixed mount, be 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, above described loading end, being provided with the shaft-cup of the circular axis hole of formation that matches with described loading end.
As preferably, in described shaft-cup, be provided with bearing.
As preferably, the described lifting arm of force one 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 present invention samples to the drive shaft of cast iron, carries out destructive testing, for testing the physical strength of this batch of drive shaft.After the accessories such as drive shaft installation gear, drive shaft is positioned on the loading end of pedestal, the gear and the fixed mount that are arranged at drive shaft one end are fixed, the gear that is arranged at the drive shaft other end is fixedly connected with the one end that promotes the arm of force, then lift by hydraulic cylinder the movable end that promotes the arm of force, because drive shaft is made of cast iron, therefore the physical characteristics of drive shaft is comparatively hard, be difficult for deformation and extremely crisp, in the time that hydraulic cylinder is greater than to a certain degree by the power that promotes the arm of force and put on drive shaft, drive shaft is broken, now the power of hydraulic cylinder is converted into and is put on drive shaft by the arm of force, be the peak torque that drive shaft can be born.Because drive shaft needs to bear great moment of torsion in use, therefore to drive shaft bear moment of torsion require high, the setting that promotes the arm of force can greatly reduce the requirement of hydraulic cylinder, can be obtained by lever principle simultaneously, and the setting that promotes the arm of force is easier to the trace control to drive shaft.
In test process, drive shaft is fixed by fixed via and lifting through hole, and therefore in test process, fixed via and lifting through hole have born larger power.On the test basis taking moment of torsion as object, the central axis of the lifting through hole on the fixed via on fixed mount and the lifting arm of force is in same circumference, can make fixed via and promote through hole can be as far as possible few bear the force component that is subject to beyond torque direction, to reduce test process to fixed via and to promote the dimensional requirement of through hole.
And lifting force wall radially arranges along the arc of loading end, the direction of motion of lifting force wall is to circle around the central shaft of drive shaft, also makes drive shaft only bear the power of torque direction, ensures the accuracy of test.
The shaft-cup arranging on pedestal and bearing can ensure that drive shaft is only stressed in the axial direction, and making the result of test is the moment of torsion that drive shaft can be born, and can not make drive shaft when stressed, produce radially deformation.
Under normal circumstances, it is hard that the lifting arm of force of proving installation all can be considered in the course of the work, can there is not deformation, therefore traditional measuring process all can not considered this respect, but in actual use, carries heavy load like this and material that deformation do not occur exists hardly, especially after using repeatedly, promoting the arm of force has certain metal fatigue, and the rear deformation of its carrying is more obvious, does not now still consider that this deformation meeting causes measurement to have larger error.The present invention simply by increasing a par on the lifting arm of force, and par one end is fixedly connected with promoting the arm of force, and the other end is unsettled.In the time promoting arm of force carrying generation deformation, par is because one end is unsettled, do not stress and can deformation, therefore the distance between par free end and the lifting arm of force is the deformation quantity that promotes the arm of force, by scale or reference being set on the lifting arm of force, can learning the deformation quantity that promotes the arm of force and the amount that needs compensation.
In sum, the present invention has the following advantages:
1, the bearing torque of Validity Test drive shaft, ensures the qualified drive shaft that escalator uses during fabrication;
2, drive shaft is not substantially subject to component of force outside moment of torsion in test process, and test result is accurate;
3, simple in structure, low cost of manufacture.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
In figure, 1, workbench, 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.
Embodiment
With embodiment, the invention will be further described below.
Embodiment mono-:
A kind of Elevator Principal Axis proving installation, comprises the workbench 1 being fixedly installed, and on workbench 1, is provided with carrier, and a side of carrier is provided with lift apparatus; Carrier comprises two pedestals that are parallel to each other 2, and pedestal 2 tops are provided with the loading end of two coaxial arcs, and pedestal 2 arranged outside are useful on the fixed mount 3 of auxiliary pedestal 2; Fixed mount 3 and with the nearest pedestal 2 of this fixed mount 3 on be provided with 3 fixed vias, be positioned at fixed via on fixed mount 3 and be positioned at fixed via on pedestal 2 concentric between two; Can mounting limit bar 4 in fixed via, gag lever post 4 is the nut of screw rod and standing screw.
Lift apparatus comprises the lifting hydraulic cylinder 6 being articulated with on workbench 1, and is articulated with the lifting arm of force 5 on lifting hydraulic cylinder 6 pistons, and lifting hydraulic cylinder 6 is connected with the liquid feed device with hydraulic pressure indicating device that drives this lifting hydraulic cylinder 6 to move.Promoting the arm of force 5 radially arranges 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 one sides and be provided with a par 9; Par 9 one end are fixedly installed on and promote the arm of force 5, the other end is parallel and unsettled with the lifting arm of force 5 on one's own time, the side of par 9 is set at the lifting arm of force 5, 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 top is provided with to match with loading end and forms the shaft-cup 7 of circular axis hole, in shaft-cup 7, is provided with bearing.
After the accessories such as drive shaft 8 installation gears, drive shaft 8 is positioned on the loading end of pedestal 2, the gear and the fixed mount 3 that are arranged at drive shaft 8 one end are fixed, the gear that is arranged at drive shaft 8 other ends is fixedly connected with the one end that promotes the arm of force 5, then lift by hydraulic cylinder 6 movable end that promotes the arm of force 5, until drive shaft 8 ruptures, now also need to from scale 10, read the maximum scale that par 9 points to.And the maximum support power that hydraulic cylinder 6 discharges converts by promoting the arm of force 5 by lever principle, and compensate by the reading in scale 10, get final product to obtain the peak torque bearing capacity of drive shaft 8.
Claims (10)
1. an Elevator Principal Axis proving installation, comprises the workbench (1) being fixedly installed, and it is characterized in that: described workbench is provided with carrier on (1), and a side of described carrier is provided with lift apparatus; Described carrier comprises two pedestals that are parallel to each other (2), and described pedestal (2) top is provided with the loading end of two coaxial arcs, and described pedestal (2) arranged outside is useful on the fixed mount (3) of auxiliary described pedestal (2); Described lift apparatus comprises the lifting hydraulic cylinder (6) being fixedly installed on described workbench (1), and being articulated with the lifting arm of force (5) on described lifting hydraulic cylinder (6) piston, described lifting hydraulic cylinder (6) is connected with the liquid feed device with hydraulic pressure indicating device that drives this lifting hydraulic cylinder (6) operation.
2. Elevator Principal Axis proving installation according to claim 1, it is characterized in that: described fixed mount (3) and with the nearest described pedestal (2) of this fixed mount (3) on be provided with some fixed vias, be positioned at described fixed via on described fixed mount (3) and be positioned at described fixed via on described pedestal (2) concentric between two; Can mounting limit bar (4) in described fixed via.
3. Elevator Principal Axis proving installation according to claim 2, is characterized in that: described gag lever post (4) is the nut of screw rod and fixing described screw rod.
4. according to Elevator Principal Axis proving installation described in claim 2 or 3, it is characterized in that: the described lifting arm of force (5) is provided with some lifting through holes near one end of described pedestal (2), and the central axis of described lifting through hole and described fixed via is on same circumference.
5. Elevator Principal Axis proving installation according to claim 1, is characterized in that: described lifting hydraulic cylinder (6) is articulated with the upper surface of described workbench (1).
6. Elevator Principal Axis proving installation according to claim 5, is characterized in that: the described lifting arm of force (5) radially arranges along the arc of described loading end.
7. Elevator Principal Axis proving installation according to claim 6, is characterized in that: described fixed mount is provided with some fixed vias on (3), and 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.
8. Elevator Principal Axis proving installation according to claim 1, is characterized in that: described loading end top being provided with to match with described loading end and forming the shaft-cup (7) of circular axis hole.
9. Elevator Principal Axis proving installation according to claim 8, is characterized in that: described shaft-cup is provided with bearing in (7).
10. Elevator Principal Axis proving installation according to claim 1, is characterized in that: the described lifting arm of force (5) one sides are 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.
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 |
Applications Claiming Priority (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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104155193A true CN104155193A (en) | 2014-11-19 |
| CN104155193B CN104155193B (en) | 2016-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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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| CN (1) | CN104155193B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| 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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| Publication number | Publication date |
|---|---|
| CN104155193B (en) | 2016-08-17 |
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