CN104267095B - Magnetic powder inspection device for overhauling wheel shaft - Google Patents
Magnetic powder inspection device for overhauling wheel shaft Download PDFInfo
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- CN104267095B CN104267095B CN201410503087.4A CN201410503087A CN104267095B CN 104267095 B CN104267095 B CN 104267095B CN 201410503087 A CN201410503087 A CN 201410503087A CN 104267095 B CN104267095 B CN 104267095B
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- wheel
- magnetic powder
- wheel shaft
- driven
- powder inspection
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Abstract
The invention relates to the technical field of magnetic powder inspection of railway vehicles and particularly discloses a magnetic powder inspection device for overhauling a wheel shaft. The magnetic powder inspection device comprises a supporting framework, a driving mechanism, a driven mechanism and rolling wheels, wherein the driving mechanism comprises a rotating motor, a driving shaft, a driving wheel and a power supply interface, and the rotating motor is connected with a wheel pair magnetic powder inspection machine through the power supply interface; the driven mechanism comprises transmission belts and driven wheel groups, the driving wheel drives the driven wheel groups to rotate through the transmission belts, and the driven wheel groups are used for supporting a wheel shaft and driving the wheel shaft to rotate; the rolling wheels are arranged at the lower part of the supporting framework and are used for supporting the supporting framework; the supporting framework can move on steel rails through the rolling wheels. According to the magnetic powder inspection device for overhauling the wheel shaft, the magnetic powder inspection on the wheel shaft can be controlled and finished by virtue of the wheel pair magnetic powder inspection machine, so that the equipment investment cost is saved, the cost is lowered, the working space occupied by equipment is reduced, the workload of the magnetic powder inspection is reduced, the production efficiency is improved, and the product quality is improved.
Description
Technical field
The present invention relates to the Magnetic Particle Inspection field of rolling stock, more particularly, to a kind of wheel shaft maintenance magnetic powder inspection dress
Put.
Background technology
At present, the task amount of overhaul of train-set is very heavy, and the wheel repairing journey for the senior maintenance of entrance moves back to needs unloads
Wheel carries out magnetic powder inspection, and magnaflux commonly used in the prior art is dedicated only to the magnetic powder inspection of monolithic wheel pair, for moving back
Unload take turns to after wheel shaft (include optical axis and the wheel shaft with gear-box and brake disc) magnetic powder inspection, generally also need to again purchase
Put the new wheel shaft magnetic particle inspection apparatus being exclusively used in wheel shaft.So not only can substantially increase production cost, also add work
Number of devices in factory, occupies more working spaces, simultaneously as needing for wheel shaft to carry out magnetic spy with another complete equipment
Wound, increases the workload of magnetic powder inspection, reduces production efficiency.
Content of the invention
(1) technical problem to be solved
It is an object of the invention to provide a kind of wheel shaft overhauls magnetic powder inspection device, with overcome take turns in prior art to and wheel shaft
It is respectively necessary for the problem of special magnaflux.
(2) technical scheme
In order to solve above-mentioned technical problem, the invention provides a kind of wheel shaft maintenance magnetic powder inspection device, including support rib
Frame, driving mechanism, follower and scroll wheel；
Described driving mechanism includes rotary electric machine, driving shaft, driving wheel and power interface, and described driving shaft is located at described
On support bone frame and can be freely rotatable with respect to described support frame, on the fixing described driving shaft of described driving wheel and can be with institute
State driving shaft to rotate together, described rotary electric machine is passed through described power interface and with wheel, magnaflux is connected, and wheel is visited to magnetic
Hinder the work that machine can control described rotary electric machine, thus controlling described rotary electric machine to drive described driving shaft to rotate；
Described slave unit includes transmission belt and driven wheels, and described driven wheels are located on described support frame and can
Relatively freely rotatable with described support frame, described driving wheel drives described driven wheels to rotate by described transmission belt, described
Driven wheels are used for supporting wheel shaft and driving wheel shaft to rotate；
Described scroll wheel be located at described support frame bottom and can be freely rotatable with respect to described support frame, described
Scroll wheel is used for supporting described support frame, and described support frame can be moved on rail by described scroll wheel.
Preferably, described driven wheels include first driven pulley, two the second driven pulleys and two the 3rd driven pulleys,
Described first driven pulley and the cooperation of described transmission belt, two the second driven pulleys be located at described first driven pulley upside and respectively with
Described first driven pulley cooperation, two the 3rd driven pulleys are located at the upside of two the second driven pulleys and second driven with respectively
Wheel cooperation, two the 3rd driven pulleys are used for supporting wheel shaft and driving wheel shaft to rotate.
Preferably, described driving wheel, the first driven pulley, the second driven pulley and the 3rd driven pulley are sprocket wheel, described transmission
Carry as chain.
Preferably, described first driven pulley, the second driven pulley and the 3rd driven pulley are each provided on corresponding bearing pin, described pin
Axle carries raised key, and described first driven pulley, the second driven pulley and the 3rd driven pulley are equipped with the corresponding company of described bearing pin
Connect hole and groove corresponding with described key.
Preferably, described 3rd driven pulley also includes polyurethane wheel, and two the 3rd driven pulleys pass through described polyurethane wheel.?
Support wheel shaft simultaneously drives wheel shaft to rotate.
Preferably, described support frame includes promoting handle, and described promotion handle carries out insulation processing, described for promoting
Support frame.
Preferably, described support frame includes gear cage cradle, and described gear cage cradle is used for supporting the gear on wheel shaft
Case.
Preferably, the spacing between described scroll wheel two row wheel is 1435mm, and the load-bearing of described scroll wheel is more than or equal to
1t.
Preferably, the wheel shaft that described driven wheels support includes optical axis, gear-box and brake disc.
Preferably, wheel can control described rotary electric machine to forward and reverse and jerk magnaflux.
(3) beneficial effect
The wheel shaft maintenance magnetic powder inspection device of the present invention is designed with and takes turns the integrated power supply that magnaflux is matched
Interface, its can by wheel to magnaflux control complete EMUs, subway, passenger vehicle etc. multiple move back unload take turns to after wheel shaft
The magnetic powder inspection of (include optical axis and the wheel shaft with gear-box and brake disc) is it is achieved that by a chaptrel to magnaflux control
Complete to take turns to and wheel shaft magnetic powder inspection, meanwhile, this wheel shaft maintenance magnetic powder inspection device is convenient, feasible, reasonable in design,
Using reliability, save equipment investment expense, reduce cost, reduce the working space of hold facility, reduce magnetic and visit
The workload of wound, improves production efficiency, expands and takes turns the range of application to magnaflux in prior art it is ensured that product
Quality.
Brief description
Fig. 1 is the front view of the wheel shaft maintenance magnetic powder inspection device of the embodiment of the present invention；
Fig. 2 is the top view of the wheel shaft maintenance magnetic powder inspection device of the embodiment of the present invention；
Fig. 3 is the inner side view of the wheel shaft maintenance magnetic powder inspection device of the embodiment of the present invention；
Fig. 4 is the inner side partial enlarged drawing of the wheel shaft maintenance magnetic powder inspection device of the embodiment of the present invention.
In figure, 1：Rotary electric machine；2：Promote handle；3：Driven wheels；4：Transmission belt；5：Gear cage cradle；6：Scroll wheel；
7：Support frame；8：Driving shaft；9：Power interface；10：Driving wheel；12：First driven pulley；13：Second driven pulley；14：3rd
Driven pulley；15：Polyurethane wheel；16：Bearing pin；17：Wheel shaft.
Specific embodiment
With reference to the accompanying drawings and examples embodiments of the present invention are described in further detail.Following examples are used for
The present invention is described, but can not be used for limiting the scope of the present invention.
As Figure 1-4, the wheel shaft maintenance magnetic powder inspection device of the present embodiment includes：Support frame 7, driving mechanism, from
Motivation structure and scroll wheel 6 etc., for move back unload take turns to after wheel shaft 17 (include optical axis and the wheel with gear-box and brake disc
Axle) carry out magnetic powder inspection.
Wheel to magnaflux for be exclusively used in prior art take turns to magnetic powder inspection and, its concrete structure and function are herein
Repeat no more.
Described driving mechanism includes：Rotary electric machine 1, driving shaft 8, driving wheel 10 and power interface 9；Driving shaft 8 is located at and props up
On support bone frame 7, driving shaft 8 being connected with support frame 7, so that driving shaft 8 can be with respect to support rib by bearing block
Frame 7 is freely rotatable, and driving wheel 10 is two, and two driving wheels 10 are respectively fitted over two ends of driving shaft 8 and relative with driving shaft 8 solid
Fixed, so that driving wheel 10 can be rotated together with driving shaft 8, in the present embodiment, driving wheel 10 is sprocket wheel；Rotary electric machine 1 passes through
Corresponding supporting construction (not shown) is fixed on support frame 7, for driving driving shaft 8 to rotate, power interface 9 and wheel
The interface of magnaflux is matched, rotary electric machine 1 passes through the power interface 9 of this integration with wheel to magnaflux even
Connect, wheel can control rotary electric machine 1 to forward and reverse the magnaflux and the action such as jerk, it is achieved thereby that control turning
Dynamic motor 1 drives driving shaft 8 and the driving wheel 10 at driving shaft 8 two ends to rotate.
Described follower includes：Transmission belt 4 and driven wheels 3；Driven wheels 3 are located at support frame 7 and can relatively
Freely rotatable in support frame 7, driving wheel 10 drives driven wheels 3 to rotate by transmission belt 4, and driven wheels 3 are used for support wheel
Axle 17 simultaneously drives wheel shaft 17 to rotate；In the present embodiment, driven wheels 3 specifically include：One the first driven pulley 12, two second from
Driving wheel 13 and two the 3rd driven pulleys 14, the first driven pulley 12 and transmission belt 4 coordinate, for receiving the moving of driving wheel 10 transmission
Power, two the second driven pulleys 13 are respectively provided at the first driven pulley 12 upper left side and upper right side and are joined with the first driven pulley 13 respectively
Close, two the 3rd drives 14 be respectively provided at the upper left side of two the second drives 13 and upper right side and respectively with corresponding one
Second driven pulley 13 coordinates, and the first drive 12, the second drive 13 and the 3rd drive 14 are also sprocket wheel, and transmission belt 4
It is then driving chain, the 3rd drive 14 also includes a circle polyurethane wheel 15, and polyurethane wheel 15 can also be other elastomeric materials
Wheel, two the 3rd drives 14 support wheel shaft 17 by polyurethane wheel 15 and drive wheel shaft 17 to rotate, and wheel shaft 17 is stuck in two
Between 3rd driven pulley 14, this polyurethane wheel 15 can increase the frictional force with wheel shaft 17, thus preferably transmitting power；The
One drive 12, the second drive 13 and the 3rd drive 14 can be each provided on corresponding bearing pin 16, and bearing pin 16 then passes through phase
The bearing block (in figure be mark) answered is located on support frame 7, and bearing pin 16 carries raised key, the first driven pulley 12, second from
Driving wheel 13 and the 3rd driven pulley 14 are equipped with connecting hole corresponding with bearing pin 16 and groove corresponding with described key.
Support frame 7 is frame structure, and the height of support frame 7 is will to the design of magnaflux height according to wheel
Ask, after must ensureing to place wheel shaft 17, so that wheel shaft 17 distance of shaft centers height from the ground is reached between 400mm～430mm, and wheel shaft 17
Length be usually 2400mm～2600mm, the Main Function of support frame 7 is to carry wheel shaft 17 to be checked, and realizes wheel shaft magnetic
The function such as the feeding of powder flaw detection and blanking.
Support frame 7 includes：Support frame body, promotion handle 2, gear cage cradle 5；The height of described frame body is
According to wheel, the height of the fork zygonema circle of magnaflux is designed it is ensured that support frame 7 and each equipment thereon and wheel shaft 17
Can pass through, reach station to be checked, the interval of support frame body is according to the brake disc of each vehicle of EMUs, gear-box
Equidimension determines, it is to avoid the colliding with magnetic powder inspection such as brake disc, gear-box；Promote handle 2 to be used for manual promotion to support
Skeleton 7 passes in and out magnetic powder inspection region, promotes handle 2 should carry out insulation processing, it is to avoid electric leakage；Gear cage cradle 5 is analysis motor-car
The gear box structure of multiple vehicle such as group, subway, the supporting construction of gear-box during the magnetic powder inspection of design.
The bottom that scroll wheel 6 is located at support frame 7 can reach with respect to support frame 7 only rotation, and scroll wheel 6 can lead to
Spend being connected with support frame 7 of corresponding bearing block or rotating shaft etc., scroll wheel 6 is used for supporting support frame 7, support frame 7 energy
Enough moved on rail by scroll wheel 6, the height of scroll wheel 6 is true to the height of the fork zygonema circle of magnaflux according to taking turns
Fixed, the spacing between this 6 liang of row wheels of scroll wheel is standard gauge, i.e. 1435mm, and load-bearing is not less than 1t.Support frame 7 leads to
Cross this scroll wheel 6 can as wheel to move in orbit, it is achieved thereby that with wheel to magnaflux to move back unload take turns right
The magnetic powder inspection of wheel shaft 17 afterwards.
The wheel shaft maintenance magnetic powder inspection device of the present invention is designed with and takes turns the integrated power supply that magnaflux is matched
Interface, its can by wheel to magnaflux control complete EMUs, subway, passenger vehicle etc. multiple move back unload take turns to after wheel shaft
The magnetic powder inspection of (include optical axis and, the wheel shaft with gear-box and brake disc) is it is achieved that by a chaptrel to magnaflux control
System complete to take turns to and wheel shaft magnetic powder inspection, meanwhile, this wheel shaft maintenance magnetic powder inspection device is convenient, feasible, and structure design is closed
Reason, using reliability, saves equipment investment expense, reduces cost, reduce the working space of hold facility, reduce magnetic
The workload of flaw detection, improves production efficiency, expands and takes turns the range of application to magnaflux in prior art it is ensured that producing
Quality.
Embodiments of the invention in order to example and description for the sake of and be given, and be not exhaustively or by this
Bright it is limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Choosing
Selecting and describe embodiment is in order to the principle of the present invention and practical application are more preferably described, and makes those of ordinary skill in the art
It will be appreciated that the present invention is thus design is suitable to the various embodiments with various modifications of special-purpose.
Claims (10)
1. a kind of wheel shaft maintenance magnetic powder inspection device is it is characterised in that include support frame, driving mechanism, follower and rolling
Driving wheel；
Described driving mechanism includes rotary electric machine, driving shaft, driving wheel and power interface, and described driving shaft is located at described support rib
On frame and can be freely rotatable with respect to described support frame, on the fixing described driving shaft of described driving wheel and can be with described master
Moving axis rotates together, and described rotary electric machine is passed through described power interface and with wheel, magnaflux is connected, and wheel is to magnaflux
The work of described rotary electric machine can be controlled, thus controlling described rotary electric machine to drive described driving shaft to rotate；
Described follower includes transmission belt and driven wheels, and described driven wheels are located on described support frame and can be relatively
Freely rotatable in described support frame, described driving wheel drives described driven wheels to rotate by described transmission belt, described driven
Wheel group is for supporting wheel shaft and driving wheel shaft to rotate；
Described scroll wheel be located at described support frame bottom and can be freely rotatable with respect to described support frame, described rolling
Take turns for supporting described support frame, described support frame can be moved on rail by described scroll wheel.
2. wheel shaft maintenance magnetic powder inspection device according to claim 1 is it is characterised in that described driven wheels include one
First driven pulley, two the second driven pulleys and two the 3rd driven pulleys, described first driven pulley and described transmission belt cooperation, two
Second driven pulley is located at the upside of described first driven pulley and is coordinated with described first driven pulley respectively, and two the 3rd driven pulleys set
Coordinate in the upside of two the second driven pulleys and respectively with second driven pulley, two the 3rd driven pulleys are used for supporting wheel shaft simultaneously
Wheel shaft is driven to rotate.
3. wheel shaft according to claim 2 maintenance magnetic powder inspection device is it is characterised in that described driving wheel, first driven
Wheel, the second driven pulley and the 3rd driven pulley are sprocket wheel, and described transmission belt is chain.
4. wheel shaft according to claim 2 maintenance magnetic powder inspection device it is characterised in that described first driven pulley, second
Driven pulley and the 3rd driven pulley are each provided on corresponding bearing pin, and described bearing pin carries raised key, described first driven pulley, second
Driven pulley and the 3rd driven pulley are equipped with the corresponding connecting hole of described bearing pin and groove corresponding with described key.
5. wheel shaft maintenance magnetic powder inspection device according to claim 2 is it is characterised in that described 3rd driven pulley also includes
Polyurethane wheel, two the 3rd driven pulleys pass through described polyurethane wheel and support wheel shaft and drive wheel shaft to rotate.
6. wheel shaft maintenance magnetic powder inspection device according to claim 1 is it is characterised in that described support frame includes promoting
Handle, described promotion handle carries out insulation processing, for promoting described support frame.
7. wheel shaft maintenance magnetic powder inspection device according to claim 1 is it is characterised in that described support frame includes gear
Cassette carrier, described gear cage cradle is used for supporting the gear-box on wheel shaft.
8. wheel shaft maintenance magnetic powder inspection device according to claim 1 is it is characterised in that described scroll wheel two arranges between wheel
Spacing be 1435mm, the load-bearing of described scroll wheel is more than or equal to 1t.
9. wheel shaft according to claim 1 overhauls magnetic powder inspection device it is characterised in that the wheel that supports of described driven wheels
Axle includes optical axis, gear-box and brake disc.
10. the wheel shaft maintenance magnetic powder inspection device according to any one of claim 1-9 is it is characterised in that wheel is to magnetic
Powder defectoscope can control described rotary electric machine to forward and reverse and jerk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410503087.4A CN104267095B (en) | 2014-09-26 | 2014-09-26 | Magnetic powder inspection device for overhauling wheel shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410503087.4A CN104267095B (en) | 2014-09-26 | 2014-09-26 | Magnetic powder inspection device for overhauling wheel shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104267095A CN104267095A (en) | 2015-01-07 |
| CN104267095B true CN104267095B (en) | 2017-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410503087.4A Active CN104267095B (en) | 2014-09-26 | 2014-09-26 | Magnetic powder inspection device for overhauling wheel shaft |
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| CN (1) | CN104267095B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110186672B (en) * | 2019-05-17 | 2021-04-20 | 中车青岛四方机车车辆股份有限公司 | Detection device for wheel axle |
| CN113533495B (en) * | 2020-09-14 | 2024-06-21 | 无锡透平叶片有限公司 | Clamp for magnetic powder inspection of shaft workpiece |
| CN112834510B (en) * | 2021-01-06 | 2023-10-27 | 安徽理工大学 | Damage-free health detection method for large-scale structure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1539646A1 (en) * | 1988-01-04 | 1990-01-30 | Всесоюзный Научно-Исследовательский Институт Железнодорожного Транспорта | Device for checking wheel pairs of vans |
| CN2062847U (en) * | 1990-02-26 | 1990-09-26 | 铁道部科学研究院中间试验基地 | Fluorescent magnetic powder defectoscope for axle of railway rolling stock |
| CN2670943Y (en) * | 2003-12-20 | 2005-01-12 | 孙劲楼 | Wheel pair magnet powder tester with double row comb electrodes and coils |
| CN201618941U (en) * | 2010-03-25 | 2010-11-03 | 济南诺斯机械有限公司 | Novel rolling wheel frame |
| CN102183578A (en) * | 2010-07-26 | 2011-09-14 | 北京聚龙科技发展有限公司 | Wheel set fluorescent magnetic powder flaw detector |
| CN103267799A (en) * | 2013-05-30 | 2013-08-28 | 南车四方车辆有限公司 | Axle magnetic powder flaw detection device and method |
| CN204165935U (en) * | 2014-09-26 | 2015-02-18 | 南车青岛四方机车车辆股份有限公司 | Wheel shaft maintenance magnetic powder inspection device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08145957A (en) * | 1994-11-25 | 1996-06-07 | Sumitomo Metal Ind Ltd | Roll flaw detecting method and roll grinding facility |
-
2014
- 2014-09-26 CN CN201410503087.4A patent/CN104267095B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1539646A1 (en) * | 1988-01-04 | 1990-01-30 | Всесоюзный Научно-Исследовательский Институт Железнодорожного Транспорта | Device for checking wheel pairs of vans |
| CN2062847U (en) * | 1990-02-26 | 1990-09-26 | 铁道部科学研究院中间试验基地 | Fluorescent magnetic powder defectoscope for axle of railway rolling stock |
| CN2670943Y (en) * | 2003-12-20 | 2005-01-12 | 孙劲楼 | Wheel pair magnet powder tester with double row comb electrodes and coils |
| CN201618941U (en) * | 2010-03-25 | 2010-11-03 | 济南诺斯机械有限公司 | Novel rolling wheel frame |
| CN102183578A (en) * | 2010-07-26 | 2011-09-14 | 北京聚龙科技发展有限公司 | Wheel set fluorescent magnetic powder flaw detector |
| CN103267799A (en) * | 2013-05-30 | 2013-08-28 | 南车四方车辆有限公司 | Axle magnetic powder flaw detection device and method |
| CN204165935U (en) * | 2014-09-26 | 2015-02-18 | 南车青岛四方机车车辆股份有限公司 | Wheel shaft maintenance magnetic powder inspection device |
Non-Patent Citations (1)
| Title |
|---|
| 无损检测技术在货车新造及检修中的运用;贾敏 等;《铁道车辆》;20101031;第48卷(第10期);第14-19页 * |
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Address after: Chengyang District of Shandong city of Qingdao province Jinhong road 266111 No. 88 Applicant after: CRRC QINGDAO SIFANG CO., LTD. Address before: Chengyang District of Shandong city of Qingdao province Jinhong road 266111 No. 88 Applicant before: CSR Qingdao Sifang Locomotive and Rolling Stock Co., Ltd. |
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