CN103419015B - Motor train unit wheel set shaft end nut tightening device - Google Patents
Motor train unit wheel set shaft end nut tightening device Download PDFInfo
- Publication number
- CN103419015B CN103419015B CN201210163247.6A CN201210163247A CN103419015B CN 103419015 B CN103419015 B CN 103419015B CN 201210163247 A CN201210163247 A CN 201210163247A CN 103419015 B CN103419015 B CN 103419015B
- Authority
- CN
- China
- Prior art keywords
- shaft end
- end nut
- tightener
- fixed frame
- motor train
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The present invention relates to a kind of motor train unit wheel set shaft end nut tightening device, comprise fixed frame, for tighten shaft end nut tighten mechanism, for wheel to the braking detent mechanism of the location of carrying out in X-axis and Y direction and braking, for tightening the control system of mechanism and/or the action of braking detent mechanism described in controlling, described in tighten mechanism and braking detent mechanism is fixed on described fixed frame.Structure of the present invention is simple, and automaticity is high, easy to operate, can reduce the activity duration in a large number, reduces operation intensity.The high pulling torque that this device can realize shaft end nut automatically tightens and dismantles, and accurate positioning is quick, reduces operation intensity, can pre-set torque value and windup-degree and automatically control, even if different model wheel is right, all can ensure assembling requirement.This device is without the need to basic, easy for installation, and gantry through type structure is convenient to pipelining.
Description
Technical field
The present invention relates to a kind of motor train unit wheel set shaft end nut tightening device, belong to rail vehicle manufacturing technology field.
Background technology
Along with the fast development of EMU industry, EMU is more and more come in the life of people, takes turns the EEF bogie to being EMUs, is the critical component of EMUs, is related to the safety of car load.Motor train unit wheel set shaft end locking nut is used for fixing and lock shaft end bearing, ensure that bearing is not moved in maximum speed 3000rpm situation, for meeting this requirement, axle head locking nut assembling torque must ensure within the scope of (1960 ~ 2940) Nm, and after locking nut screwing, angle adjustment must be tightened to locking nut, conveniently locking nut is fixed.
Current EMUs are newly made and are adopted traditional manual mounting means, this mounting means is for when prefastening torque reaches 1960Nm, one people's control wheel controls frock to, the second people, the 3rd people uses high pulling torque spanner to utilize moment recoil strength to carry out fastening, then according to actual conditions, carry out axle head locking nut and tighten angle adjustment.This kind of method cannot ensure the size of final tightening torque, and in installation process, there is operation easier large, the problems such as labour intensity is large.
Overhaul of train-set requires lower than newly making, and adopt shaft end nut assembly machine to assemble so, shaft end nut assembly machine complex structure, automaticity are low, operating difficulties, and assembly machine can not carry out angle adjustment more.With assembly machine installation time and handwork around, so shaft end nut assembly machine can not to be applied to precision prescribed high, and require that large batch of EMUs of newly making are produced.
Summary of the invention
Main purpose of the present invention is to solve the problem and deficiency, provides a kind of structure simple, easy to operate, and can provide the motor train unit wheel set shaft end nut tightening device of high pulling torque torsion.
For achieving the above object, technical scheme of the present invention is:
A kind of motor train unit wheel set shaft end nut tightening device, comprise fixed frame, mechanism is tightened for what tighten shaft end nut, for to the braking detent mechanism of wheel to the location of carrying out in X-axis and Y direction and braking, for tightening the control system of mechanism and/or the action of braking detent mechanism described in controlling, the described mechanism that tightens is fixed on described fixed frame with braking detent mechanism, described braking detent mechanism comprises positioner and clamping brake apparatus, described positioner is the telescopic arm of a pair symmetrical setting, the end of each described telescopic arm is connected with and acts on described wheel tread to carry out the contact site of self-centering operation, described clamping brake apparatus is for clamping described clamp of taking turns brake disc, the other end and the described clamp of described telescopic arm are fixedly connected on described fixed frame.
Further, described fixed frame is planer-type truss structure, and the below of described fixed frame is provided with the track vertical with described fixed frame, and described wheel passes in and out operation area to along described track.
Further, mechanism is tightened described in by tightener, for regulating the axial-adjustment unit of described tightener axial distance and for regulating the vertical adjusting device of the vertical distance of described tightener to form.
Further, the detachable swivel nut supporting with described shaft end nut changed is provided with in the leading section of described tightener.
Further, described axial-adjustment unit is that the edge be fixed on described fixed frame is taken turns axially extended slide rail, described vertical adjusting device is electric hoist or lift, one end and the described slide rail of described electric hoist or lift are slidably connected, and the other end of described electric hoist or lift is connected with described tightener.
Further, tighten mechanism described in also to comprise one and be fixedly mounted on the counter-force arm bracing or strutting arrangement for providing opposing torque below described tightener.
Further, described contact site has an arc surface, and described arc surface is when locating and describedly take turns right tread close contact.
Further, be rotatably connected between described telescopic arm and described fixed frame.
Further, moment of torsion detection and control unit, windup-degree detection and control unit, circular arc self-centering control unit, clamping brak control unit, tightener location and driving control unit, data input and output control unit, the real-time display unit of data, data storage cell and fault alarm unit is included in described control system.
To sum up content, a kind of motor train unit wheel set shaft end nut tightening device of the present invention, structure is simple, and automaticity is high, easy to operate, can reduce the activity duration in a large number, reduces operation intensity.The high pulling torque that this device can realize shaft end nut automatically tightens and dismantles, and accurate positioning is quick, reduces operation intensity, can pre-set torque value and windup-degree and automatically control, even if different model wheel is right, all can ensure assembling requirement.This device is without the need to basic, easy for installation, and gantry through type structure is convenient to pipelining.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the front view of Fig. 1.
As depicted in figs. 1 and 2, fixed frame 1, tightens mechanism 2, braking detent mechanism 3, display unit 4, takes turns 5, tightener 6, counter-force arm bracing or strutting arrangement 7, swivel nut 8, axial-adjustment unit 9, vertical adjusting device 10, positioner 11, clamping brake apparatus 12, telescopic arm 13, contact site 14, wheel tread 15, brake disc 16, clamp 17.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the present invention is described in further detail:
As depicted in figs. 1 and 2, a kind of motor train unit wheel set shaft end nut tightening device, comprises fixed frame 1, tightens mechanism 2, brakes detent mechanism 3, control system.
Wherein, fixed frame 1 is planer-type truss structure, the below of fixed frame 1 is provided with the track (not shown) vertical with fixed frame 1, wheel enters operation area along track from side to 5, after tightening the end of job, take turns and flow out operation area along track from opposite side to 5, realize taking turns the pipelining to 5, improve operating efficiency, reduce the labour intensity of workman.And fixed frame 1 adopts planer-type truss structure, monoblock type lands installation, without the need to basis, easy for installation.
As depicted in figs. 1 and 2, tightening mechanism 2 is two groups, and symmetry is installed on wheel on the fixed frame 1 of 5 both sides, for tightening the shaft end nut (not shown) of wheel to 5 two ends respectively, can carry out tightening installation exercise in two ends simultaneously, also can carry out separately tightening operation in one end.
Often group tightens mechanism 2 and forms by tightener 6, counter-force arm bracing or strutting arrangement 7, axial-adjustment unit 9, vertical adjusting device 10.Take turns after 5 location clampings, according to wheel to 5 model determination axle length and wheel to 5 diameters, the axial distance of tightener 6 is regulated by axial-adjustment unit 9, make tightener 6 with wheel to 5 two ends coordinates be suitable for, the vertical distance of tightener 6 is regulated again by vertical adjusting device 10, further tightener 6 is adjusted to the job position of wheel to 5 two ends, vertical adjusting device 10 also provides auxiliary force to tightener 6 simultaneously.
Wherein, as shown in Figure 2, axial-adjustment unit 9 is for taking turns 5 axially extended slide rails on the edge be fixed on fixed frame 1, in the present embodiment, vertical adjusting device 10 preferably adopts electric hoist, and one end and the slide rail of electric hoist are slidably connected, and the other end of electric hoist is connected with tightener 6.Electric hoist is along slide rail transverse shifting, and electric hoist drives tightener 6 move and then regulate the axial distance of tightener 6, and the lifting of electric hoist drives tightener 6 to be elevated and then to regulate the vertical distance of tightener 6.Vertical adjusting device 10 also can adopt lift (not shown), and stiff end and the slide rail 9 of lift are slidably connected, and the movable end of lift is connected with tightener 6.
By the adjustment of axial-adjustment unit 9 and vertical adjusting device 10, make the axle center of tightener 6 identical to the axle center of 5 with wheel, carry out tightening operation finally by tightener 6, and ensure to tighten quality.Axial-adjustment unit 9 and vertical adjusting device 10 can manual operations, also can be connected with control system, in the present embodiment, preferably, carry out the vertical adjustment height of axial adjustment Distance geometry by control system automatic operation.
The detachable swivel nut 8 supporting with shaft end nut changed is provided with in the leading section of tightener 6, can according to the wheel of different model to 5 shaft end nut specification, change and different tighten swivel nut 8, realize tightening different nut, improve the versatility of this device further.
As shown in Figure 1, install a pair counter-force arm bracing or strutting arrangement 7 in the below of each tightener 6, tightening in process, counter-force arm bracing or strutting arrangement 7 provides opposite force for tightener 6, limits tightener 6 motion in the other direction, makes to tighten process safety, steadily.
Tightener 6 adopts hydraulic pressure or electronic, tightener 6 is connected with control system, the moment of torsion of tightener 6 is controlled by control system, realize wheel and automatically function is tightened to 5 both sides shaft end nuts, take turns the design requirement to 5 according to difference, moment of torsion generally all will ensure within the scope of (1960 ~ 2940) Nm, by the control of control system, namely can design the high pulling torque of needs, and then automatically tighten according to the moment of torsion arranged or dismantle shaft end nut.After nut is tightened, need to carry out inching to the windup-degree of shaft end nut, now, tightener 6 can be controlled by control system and rotate required angle, make shaft end nut meet wheel completely to 5 designing requirements.
As depicted in figs. 1 and 2, braking detent mechanism 3 comprises two groups of positioners 11 and clamping brake apparatus 12, and corresponding wheel is arranged each wheel in 5.Positioner 11 for limit wheel to 5 the displacement of Y direction, clamping brake apparatus 12 for limit wheel to 5 the displacement of X-direction, after wheel pushes operation area to 5 from side, positioner 11 can position 5 wheel automatically, then clamps brake apparatus 12 and automatically carries out clamping braking to wheel to 5.
As shown in Figure 1, often organize the telescopic arm 13 that positioner 11 comprises two symmetrical settings, in the present embodiment, telescopic arm 13 preferably adopts fluid pressure type telescopic arm, the end of telescopic arm 13 is a contact site 14 with arc surface, the arc surface of contact site 14 acts on the tread 15 of taking turns 5, with circular arc tread 15 close contact of taking turns 5.Positioner 11 has self-centering function, two contact sites 14 are divided into two side positions of wheel to 5 circumferences, trailing wheel to 5 circumferential locking wheel to 5, the center of circle of the circle that the arc surface of two contact sites 14 is formed is identical to the center of circle of 5 with wheel, the self-centering of common formation circular arc, ensure that wheel is consistent with the axis of this tightening device to 5, without the need to human assistance, reduce operation easier.
Four telescopic arms 13 are connected with control system, according to difference wheel to the diameter dimension of 5, control four telescopic arm 13 synchronization telescopes by control system, thus the wheel of locking different-diameter size is to 5 fixed positions in the Y-axis direction.
Be rotatably connected between telescopic arm 13 and fixed frame 1, ensure the arc surface of contact site 14 and circular arc tread 15 close contact of taking turns 5.
As shown in Figure 2, clamping brake apparatus 12 is to the pneumatic of brake disc 16 or hydraulic clamp 17 for pinch wheels, clamp 17 is connected with control system, by control system control action, after positioner 11 is located, control system controls clamp 17 action, is clamped by brake disc 16, and apply clamping force, prevent operation hour wheel from rotating 5.Tighten between operational period at shaft end nut, clamping brake apparatus 12 carries out effective brake to 5, until nut tightens the end of job to wheel all the time.
Take turns and tighten after operation completes to 5 two end axles end nuts, resetted by tightener 6, clamping brake apparatus 12 discharges clamping force, and positioner 11 lifts, and takes turns and can release operation area to 5, carries out next step circulation.
As depicted in figs. 1 and 2, control system, primarily of formations such as Industrial Control Computer, PLC, display unit 4, by the software developed specially, realizes the Automated condtrol to the whole course of work.Adopt Industrial Control Computer can ensure the stable of control system, control system is configured with the data input/output interface of standard, carries out data inputting and data output, can call at any time check the data of preserving.
Control system is all provided with display unit 4 at wheel to 5 shaft end nut both sides, and display unit 4 is fixed on the fixed frame 1 of both sides, convenient operation and real time inspection, and control system can carry out the operator scheme that two ends tighten or one end tightens and select.
Moment of torsion detection and control unit, windup-degree detection and control unit, circular arc self-centering control unit, clamping brak control unit, tightener location and driving control unit, data input and output control unit, the real-time display unit of data, data storage cell and fault alarm unit is included in described control system, to realize entering detection and control to the reality of moment of torsion and windup-degree, and realize real-time display, storage, inquiry and export the functions such as related data, moment of torsion self checking, the control of torsion substep and fault alarm.
Be preset with in control system the wheel of different model to the standard torque value required for 5, tighten the technical parameters such as angle, this parameter preset can be that Wheelset design requires required number range, when carrying out tightening operation, control system can Automatically invoked relevant parameter.
Display unit 4 has user interface, on user interface, wheel for inputting to 5 the technical parameter such as model, numbering, diameter, the relevant parameter that control system Automatically invoked presets, simultaneously user inputs the technical data such as torque value, windup-degree required for this subjob by user interface, start and tighten mechanism 2 and braking detent mechanism 3, wheel is automatically positioned 5, clamps and tighten operation.In operation process, control system can detect torque value and torsion angle values in real time, and automatically shows change in torque in real time at user interface, after operation completes, overall process torque curve is kept in Industrial Control Computer hard disk automatically, and prints out as required.
Control system, in windup-degree adjustment process, can detect, shows and preserve lashing force curve, final torque value and adjustment angle automatically.In angle adjustment operation task process, when torque value exceedes torque maximum requirement, tighten operation and automatically stop, and report to the police.
What keep tightener 6 tightens position, the user interface of control system enters shaft end nut and moves back and unload interface, can carry out moving back unloading operation according to interface prompt.
Control system is automated system, and wheel only need be pushed operation area to 5 by operating personnel, and after being inputted 5 numberings by wheel from user interface, process of can starting working, the course of work participates in without the need to personnel.
As depicted in figs. 1 and 2, the course of work tightened of this device is described below in detail.
1, the two ends to 5 are being taken turns by pre-for shaft end nut group.
2, the wheel having organized shaft end nut is in advance pushed operation area along track from the side of fixed frame 1 to 5.
3, the model of taking turns 5, numbering and the diameter of taking turns 5 are inputed in control system by user interface, the wheel that presets model Automatically invoked according to wheel to the number range of the technical parameter such as torque value, windup-degree, and to be presented on user interface by control system.
4, operating personnel set torque value required for this subjob, if input torque value is 1960Nm by user interface.
5, after starting start button, circular arc self-centering control unit in control system automatically controls positioner 11 and carries out self-centering to wheel to 5, wheel brake disk mounted 16 is held in clamping brak control unit hydraulic control clamp 17 action immediately in control system tightly, and then pinch wheels is to 5, and apply constant clamping force.In this process, when brake pressure declines, control system can supply pressure automatically, until nut tightens the end of job.
6, take turns after 5 location clampings, control system is determined to take turns the length to 5 according to the model of taking turns 5, and determine that wheel is to 5 centre-heights by the diameter of taking turns 5, then control system is by adjustable axle to adjusting device 9 and vertical adjusting device 10, and tightener 6 is meshed to 5 two axial ends nuts with wheel automatically.
7, take turns 5 ready, control system can drive tightener 6 automatically according to the torque value of input, tightens shaft end nut, automatically detects torque value and show change in torque in real time in operation process.Tightener 6, when carrying out tightening operation, can pass through counter-force arm bracing or strutting arrangement 7, provide and tighten countertorque.
8, after moment of torsion reaches input requirements, user interface automatic-prompting shows next step operation, and operating personnel as required, select " work completes " or next step " angle adjustment " function.
9, under " angle adjustment " interface, the angle adjustment value that manipulation personnel are needed by user interface input, being 1 ° as inputted required windup-degree, again starting tightener 6, until after all satisfied setting requirement of moment of torsion and angle, system just can show " work completes " dialog box.
In angle adjustment operation task process, when torque value exceedes torque maximum requirement, tighten operation and automatically stop, and report to the police.
10, after operation completes, the operation process information such as torque curve and adjustment angle will be kept in control system storage device automatically, and print out as required.
11, take turns and tighten after operation completes to 5 two end axles end nuts, resetted by tightener 6, hydraulic clamp 17 discharges clamping force, and positioner 11 lifts, and takes turns and can release operation area along track to 5, carries out next step circulation.
As depicted in figs. 1 and 2, the course of work that this device unclamps is described below in detail.
1, the two ends to 5 are being taken turns by pre-for shaft end nut group.
2, the wheel having organized shaft end nut is in advance pushed operation area along track from the side of fixed frame 1 to 5.
3, by wheel to 5 model, numbering and wheel input in control system to the diameter of 5 by user interface, the wheel that presets model Automatically invoked according to wheel to the number range of torque value, and to be presented on user interface by control system.
4, operating personnel set torque value required for this subjob by user interface.
5, after starting start button, wheel is carried out self-centering to 5 by positioner 11, and wheel brake disk mounted 16 held tightly by hydraulic control clamp 17 immediately, and then pinch wheels is to 5, and applies constant clamping force.In this process, when brake pressure declines, control system can supply pressure automatically, until nut tightens the end of job.
6, take turns after 5 location clampings, control system is determined to take turns the length to 5 according to the model of taking turns 5, and determine that wheel is to 5 centre-heights by the diameter of taking turns 5, then control system is by adjustable axle to adjusting device 9 and vertical adjusting device 10, and tightener 6 is meshed to 5 two axial ends nuts with wheel automatically.
7, take turns 5 ready, according to control system, shaft end nut tightener 6 can require that carrying out shaft end nut moves back and unload operation, when unclamping, unclamping moment of torsion can slowly increase, until unclamped by nut.
8, after operation completes, control system can by maximumly unclamping moment of torsion, unclamp the operation process information such as angle and will automatically be kept in system memory device, and to print out as required.
9, take turns and tighten after operation completes to 5 two end axles end nuts, resetted by tightener 6, hydraulic clamp 17 discharges clamping force, and positioner 11 lifts, and takes turns and can release operation area along track to 5, carries out next step circulation.
As mentioned above, plan content given by reference to the accompanying drawings, can derive similar technical scheme.In every case be the content not departing from technical solution of the present invention, any simple modification done above embodiment according to technical spirit of the present invention, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (9)
1. a motor train unit wheel set shaft end nut tightening device, it is characterized in that: comprise fixed frame, mechanism is tightened for what tighten shaft end nut, for to the braking detent mechanism of wheel to the location of carrying out in X-axis and Y direction and braking, for tightening the control system of mechanism and/or the action of braking detent mechanism described in controlling, the described mechanism that tightens is fixed on described fixed frame with braking detent mechanism, described braking detent mechanism comprises positioner and clamping brake apparatus, described positioner is the telescopic arm of a pair symmetrical setting, the end of each described telescopic arm is connected with and acts on wheel tread to carry out the contact site of self-centering operation, described clamping brake apparatus is for the clamp of pinch wheels to brake disc, the other end and the described clamp of described telescopic arm are fixedly connected on described fixed frame.
2. motor train unit wheel set shaft end nut tightening device according to claim 1, it is characterized in that: described fixed frame is planer-type truss structure, the below of described fixed frame is provided with the track vertical with described fixed frame, and described wheel passes in and out operation area to along described track.
3. motor train unit wheel set shaft end nut tightening device according to claim 1, is characterized in that: described in tighten mechanism by tightener, for regulating the axial-adjustment unit of described tightener axial distance and for regulating the vertical adjusting device of the vertical distance of described tightener to form.
4. motor train unit wheel set shaft end nut tightening device according to claim 3, is characterized in that: be provided with the detachable swivel nut supporting with described shaft end nut changed in the leading section of described tightener.
5. motor train unit wheel set shaft end nut tightening device according to claim 3, it is characterized in that: described axial-adjustment unit is that the edge be fixed on described fixed frame is taken turns axially extended slide rail, described vertical adjusting device is electric hoist or lift, one end and the described slide rail of described electric hoist or lift are slidably connected, and the other end of described electric hoist or lift is connected with described tightener.
6. motor train unit wheel set shaft end nut tightening device according to claim 3, is characterized in that: described in tighten mechanism and also comprise one and be fixedly mounted on the counter-force arm bracing or strutting arrangement for providing opposing torque below described tightener.
7. motor train unit wheel set shaft end nut tightening device according to claim 1, is characterized in that: described contact site has an arc surface, and described arc surface is when locating and describedly take turns right tread close contact.
8. motor train unit wheel set shaft end nut tightening device according to claim 1, is characterized in that: be rotatably connected between described telescopic arm and described fixed frame.
9. motor train unit wheel set shaft end nut tightening device according to claim 1, is characterized in that: include moment of torsion detection and control unit, windup-degree detection and control unit, circular arc self-centering control unit, clamping brak control unit, tightener location and driving control unit, data input and output control unit, the real-time display unit of data, data storage cell and fault alarm unit in described control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210163247.6A CN103419015B (en) | 2012-05-24 | 2012-05-24 | Motor train unit wheel set shaft end nut tightening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210163247.6A CN103419015B (en) | 2012-05-24 | 2012-05-24 | Motor train unit wheel set shaft end nut tightening device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103419015A CN103419015A (en) | 2013-12-04 |
| CN103419015B true CN103419015B (en) | 2015-08-19 |
Family
ID=49644659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210163247.6A Active CN103419015B (en) | 2012-05-24 | 2012-05-24 | Motor train unit wheel set shaft end nut tightening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103419015B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108436512B (en) * | 2018-03-03 | 2020-03-17 | 滁州市成业机械制造有限公司 | Clamping device capable of realizing automatic opening and closing of machine tool |
| CN110125650A (en) * | 2019-06-06 | 2019-08-16 | 航天云网科技发展有限责任公司 | Wheel fixing device and wheel are to assembly tooling |
| CN110958563A (en) * | 2019-11-29 | 2020-04-03 | 龙铁纵横（北京）轨道交通科技股份有限公司 | Multi-axis robot intelligent fastening workshop networking system |
| CN110961898B (en) * | 2019-11-29 | 2021-09-10 | 龙铁纵横（北京）轨道交通科技股份有限公司 | Full-automatic intelligent fastening system and method for multi-axis robot |
| CN113043001B (en) * | 2019-12-26 | 2023-07-28 | 齐齐哈尔四达铁路设备有限责任公司 | Intelligent decomposing device for shaft end bolts |
| CN111982191A (en) * | 2020-08-11 | 2020-11-24 | 苏州市艾西依钣金制造有限公司 | Automatic detection assembly line for precise metal plate cabinet body |
| CN112657209A (en) * | 2020-12-03 | 2021-04-16 | 云和县双尖玩具配件有限公司 | Device for preventing motor stall collision of toy car |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2264637B2 (en) * | 2005-06-06 | 2009-05-25 | Eurobarna De Caldereria, S.L. | MACHINE FOR THE HOLDING OF WHEELS IN VEHICLES. |
| RU2404040C1 (en) * | 2009-05-26 | 2010-11-20 | Общество с ограниченной ответственностью "Транс-Атом" | Installation for dismantling wheel and motor locomotive unit |
| CN102152106B (en) * | 2011-03-21 | 2012-07-25 | 山东同力达智能机械有限公司 | Shaft end nut assembling system of CRH2 motor train unit |
| CN202804617U (en) * | 2012-05-24 | 2013-03-20 | 南车青岛四方机车车辆股份有限公司 | Screwing device for screw nuts at shaft ends of wheel set of motor train unit |
-
2012
- 2012-05-24 CN CN201210163247.6A patent/CN103419015B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103419015A (en) | 2013-12-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103419015B (en) | Motor train unit wheel set shaft end nut tightening device | |
| CN203679629U (en) | Support table positioner | |
| CN206057512U (en) | Combined motor is to dragging testboard | |
| CN203426650U (en) | Construction machine frame main body welding positioner | |
| CN208067740U (en) | Wind power hub intelligent assembly system | |
| CN106624583B (en) | A kind of reproduction machine and reproducting method for gathering pipe peculiar to vessel installation | |
| CN206258262U (en) | A kind of electric power-assisted steering apparatus assembly performance testing stand | |
| CN205520584U (en) | Dedicated anchor clamps of digit control machine tool | |
| CN205630542U (en) | Relief valve maintenance platform of adjustable height | |
| CN106768973A (en) | Linear rolling guide clamp reliability test and test method | |
| CN107741369A (en) | A kind of rope fatigue wear test device of adjustable cornerite | |
| CN202804617U (en) | Screwing device for screw nuts at shaft ends of wheel set of motor train unit | |
| CN106514378A (en) | CNC four-shaft rotary hydraulic tool | |
| KR101372611B1 (en) | Jig apparatus for frame vehicle manufacture | |
| CN203197455U (en) | Welding device for hub friction stir welding | |
| CN205607653U (en) | Bridge assembly bench test machine | |
| CN203726059U (en) | Cantilever crane welding tool | |
| CN201009065Y (en) | General turn-over device for long straight steel component soldering | |
| CN207263151U (en) | Detection device for more specification brake discs | |
| CN214161997U (en) | Rotary installation vehicle | |
| CN102581614B (en) | Overall assembly device for valve 120 module | |
| CN203197456U (en) | Welding device for hub friction stir welding and control system thereof | |
| CN113458697A (en) | Centering clamping structure of suspension arm welding clamp | |
| CN102879194A (en) | Adjustable support structure of transmission test bed | |
| DE202021107053U1 (en) | Stroke centering system wheel lathe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Jihongtan town Chengyang District Shandong city Qingdao province Jinhong road 266111 No. 88 Patentee after: CRRC QINGDAO SIFANG CO., LTD. Address before: Jihongtan town Chengyang District Shandong city Qingdao province Jinhong road 266111 No. 88 Patentee before: CSR Qingdao Sifang Locomotive and Rolling Stock Co., Ltd. |