CN102218666B - Car lifting jack for train car body - Google Patents
Car lifting jack for train car body Download PDFInfo
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- CN102218666B CN102218666B CN 201110135617 CN201110135617A CN102218666B CN 102218666 B CN102218666 B CN 102218666B CN 201110135617 CN201110135617 CN 201110135617 CN 201110135617 A CN201110135617 A CN 201110135617A CN 102218666 B CN102218666 B CN 102218666B
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Abstract
The embodiment of the invention provides a car lifting jack for a train car body, comprising a fixing seat and two groups of supporting frames, wherein the two groups of supporting frames are symmetrically arranged and slidably connected with the fixing seat; a regulating device is arranged at the upper end part of the supporting frame and used for regulating the position of the train car body supported by the car lifting jack for the train car body so that a machine tool used for machining the train car body can be located below the train car body and can be used for machining the train car body above the machine tool. In the invention, the train car body is firstly welded and formed, and then a supporting part at the lower part of the train car body is machined by the machine tool, therefore, each supporting part of the manufactured train car body can be effectively ensured to load force uniformly, the gravity center of the train car body is kept in balance, and the operating stability and reliability are improved after a train is assembled by the train car body.
Description
The application is that the application number submitted on February 4th, 2010 is dividing an application of 201010107783.5 patent application.
Technical field
The embodiment of the invention relates to mechanical field, particularly a kind of car lifting jack for train car body.
Background technology
Along with the development of bullet train, bullet train is widely used at traffic transport industry.Connect by hitch between each car body of bullet train, and bogie is connected on the car body by the support portion that the car body bottom surface arranges.Promote because the more common train of the speed of service of bullet train has significantly, in order to guarantee the train body held stationary of high-speed cruising, bullet train requires very high to the train body gravity balance, therefore the accuracy of manufacture of car body support portion is had relatively high expectations accordingly.
Prior art is made train body usually in the following way: at first, with parts welding fabrications such as the underframe of train body, two side walls, two headwalls and roofs, and make good support portion in the underframe welding of welding fabrication; Then, the various piece assembly welding moulding with car body forms car body.
As from the foregoing, after the moulding of train body assembly welding, deformation can occur in train body under the effect of welding stress, the train body support portion can not be fitted tightly with bogie, make the center of gravity of train body can not be in poised state, cause the accuracy of manufacture of train body lower, easily have an accident thereby make in the process of train body high-speed cruising after forming train.Therefore, lower by traveling comfort and reliability behind the train body composition train that adopts the manufacturing of prior art car body manufacture method.
Summary of the invention
The embodiment of the invention provides a kind of train body manufacture method, machine tool for train body and car lifting J-Horner.With traveling comfort and the lower defective of reliability behind the train body composition train that solves the prior art manufacturing, realization is by adopting car body manufacture method manufacturing car body of the present invention, with traveling comfort and reliability behind the raising train body composition train.
The embodiment of the invention provides a kind of train body manufacture method, comprising: train body is placed on the car lifting J-Horner; Measure the location parameter of train body; Adjust described train body by described car lifting J-Horner, so that described train body center of gravity is in poised state; By the lathe between two groups of bracing frames in described car lifting J-Horner, the support portion of the described train body of described lathe top is processed.
The embodiment of the invention provides a kind of machine tool for train body for above-mentioned train body manufacture method, comprise guide rail, be slidingly installed in column on the described guide rail, be installed in the crossbeam on the described column and be slidingly installed in main shaft device on the described crossbeam, the end of the spindle mounted cutter in the described main shaft device up so that described machine tool for train body can be processed the parts to be processed of top.
The embodiment of the invention provides a kind of car lifting jack for train car body, comprising: holder and symmetrically arranged two groups of bracing frames; Support frame as described above and described holder are slidingly connected, the support frame as described above upper end is provided with adjusting device, described adjusting device is for the position of the train body of regulating described car lifting jack for train car body support, the lathe of stating train body to be used in machining can be positioned at described train body below, and described lathe can be processed the train body that is positioned at described lathe top.
A kind of train body manufacture method, machine tool for train body and car lifting J-Horner that inventive embodiments provides, by adopting car lifting J-Horner, that the train body of assembly welding moulding is built on stilts; Then, by machine tool for train body built on stilts train body is processed.Because train body elder generation assembly welding moulding, process by the support portion of machine tool for train body to the train body bottom again, thereby each support portion that can effectively guarantee to make the train body of finishing can be stressed uniformly, avoided welding stress to cause the phenomenon of position, support portion distortion, make the center of gravity of train body keep balance, form traveling comfort and reliability behind the train thereby improved train body.
Description of drawings
Fig. 1 is the flow chart of embodiment of the invention train body manufacture method;
Fig. 2 is the position view of each equipment of using in the embodiment of the invention train body manufacture method;
Fig. 3 is the structural representation of embodiment of the invention machine tool for train body;
Fig. 4 is the structural representation of embodiment of the invention car lifting jack for train car body;
Fig. 5 a is the partial schematic diagram of a-quadrant among Fig. 4;
Fig. 5 b is the partial schematic diagram in B zone among Fig. 4;
Fig. 5 c is the partial schematic diagram in C zone among Fig. 4.
The specific embodiment
Also by reference to the accompanying drawings the present invention is described in further detail below by specific embodiment.
Fig. 1 is the flow chart of embodiment of the invention train body manufacture method.As shown in Figure 1, the present embodiment train body manufacture method comprises:
Step 101, train body is placed on car lifting J-Horner for built on stilts described train body.
Concrete, in actual mechanical process, operating personnel can sling train body by the overhead traveling crane of two interlocks, and are placed on the car lifting J-Horner.Because train body is rectangular structure, the car lifting J-Horner that generally can adopt two covers to be arranged in parallel supports train body, thereby can effectively support the two ends of train body fixing.
The location parameter of step 102, measurement train body.
Concrete, by various measurement devices the location parameter that is placed on each position of train body on the car lifting J-Horner is measured.For example: can know center line on the train body length direction and the depth of parallelism between the machine tool guideway by Reinshaw probe; Measure the height of each support portion, train body bottom by laser measuring apparatus.
Concrete, according to the measurement result that step 102 obtains, adjust the position of train body by car lifting J-Horner, make the train body center of gravity be in poised state.For example, center line and the depth of parallelism between the machine tool guideway with train body is adjusted in 0.5 millimeter scope, so that machine tooling.Adjust four support portion height of car body, so that the train body center of gravity is in balance, thereby so that each support portion in the train body can be stressed uniformly after making, reach the train body center of gravity and be in poised state.
Step 104, by the lathe between two groups of bracing frames in car lifting J-Horner, the support portion of the train body that is positioned at the lathe top is processed.
Concrete, after passing through step 103, the train body center of gravity will be in poised state, and just can process each support portion of train body bottom this moment.Between two groups of bracing frames of lathe in the present embodiment in car lifting J-Horner, thereby lathe can be made it in the train body bottom.For example: can carry out plane machining, hole milling, boring and bore hole to each support portion by lathe.The following concrete technology parameter that the support portion is processed of having listed:
By lathe above-mentioned processing is carried out in the support portion of train body bottom, realized after the moulding of train body assembly welding, again the train body support portion being processed.Thereby can effectively avoid causing the distortion of train body support portion because of welding stress, improved the train body machining accuracy, support portion and the bogie of train body can be fitted and connected closely, make train body can be in poised state, finally improved train body and formed traveling comfort and reliability behind the train.
The present embodiment train body manufacture method, by adopting car lifting J-Horner, that the train body of assembly welding moulding is built on stilts; Then, by lathe built on stilts train body is processed.Because train body elder generation assembly welding moulding, process by the support portion of lathe to the train body bottom again, thereby the adverse effect that can effectively avoid welding stress that the support portion of train body is caused, each support portion that guarantees the train body that manufacturing is finished can be stressed uniformly, make the center of gravity of train body keep balance, form traveling comfort and reliability behind the train thereby improved train body.
Based on technique scheme, optional, before step 101, the present embodiment train body manufacture method also comprises:
Step 100, train body is weighed the height value of train body support portion when drawing the train body gravity balance.
Concrete, adopt weighing-appliance that train body is weighed, and measure by sensor, calculate through Weighing control software, to draw the height value of train body support portion behind the train body gravity balance.The height value of the train body gravity balance rear support section that obtains by step 100 makes things convenient for step 102 to regulate car lifting J-Horner, and the height value that step 100 obtains is adjusted in the support portion of train body, makes the train body center of gravity be in balance.
Further, after step 104, the present embodiment train body manufacture method can also comprise:
Concrete, after by step 104 the train body manufacturing being finished, need to further detect by the step 105 pair train body that manufacturing is good, whether make with the good train body of judgement manufacturing qualified.Test item can comprise following several: whether the flatness that, detects each support portion meets the requirements.For example: the flatness of making good support portion whether at the 0-0.3 millimeter with interior scope.If illustrate that then the train body manufacturing is qualified; If not, defective in the manufacturing of explanation train body, need to continue to make by step 104.Whether the locating hole that two, detects on each support portion meets the requirements.For example: the diameter error of making the locating hole of good support portion need to be in the scope of 0-0.054 millimeter.If illustrate that then the train body manufacturing is qualified; If not, defective in the manufacturing of explanation train body, need to continue to make by step 104.
Concrete, after step 105 learns that the good train body of manufacturing is qualified, then by overhead traveling crane train body is unloaded from car lifting J-Horner.
Below in conjunction with accompanying drawing the present embodiment train body manufacture method is described.Fig. 2 is the position view of each equipment of using in the embodiment of the invention train body manufacture method.As shown in Figure 2, train body 201 is being weighed, behind the height value of the support portion of train body 201, by overhead traveling crane train body 201 is being placed on the car lifting J-Horner 202 when drawing train body 201 and being in poised state; Result according to various measurement devices are measured by car lifting J-Horner 202, adjusts the position of train body 201, makes the center line on train body 201 length directions parallel with lathe 203 middle guides, and adjusts the height of each support portion according to the height value that obtains; Then the train body 201 that is placed on the car lifting J-Horner 202 by 203 pairs on lathe is processed, and for example, the support portion that height value is high in the support portion is carried out plane machining as benchmark with other support portions, and each support portion is in the same plane; At last, unload from car lifting J-Horner 202 making qualified train body 201.As from the foregoing, by the present embodiment train body manufacture method, can be first with train body 201 assembly welding moulding, and then the support portion of train body 201 bottoms made, thereby can guarantee that the train body 201 of making can be connected with bogie closely, make train body 201 reach gravity balance, improved the precision after train body 201 and bogie are assembled, more improved stationarity and the reliability of the train operation after the assembling.
Fig. 3 is the structural representation of embodiment of the invention machine tool for train body.As shown in Figure 3, the present embodiment machine tool for train body can be applied in the train body manufacture method of the present invention.The present embodiment machine tool for train body comprises guide rail 4, is slidingly installed in column 1 on the guide rail 4, is installed in the crossbeam 3 on the column 1 and is slidingly installed in main shaft device 2 on the crossbeam 3.
The end 211 of the main shaft 21 assembling cutters in the main shaft device 2 up so that machine tool for train body can be processed the train body that is positioned at the machine tool for train body top.
Particularly, be installed with crossbeam 3 on the machine pillar 1 of the present embodiment machine tool for train body, and main shaft device 2 is slidingly installed on the crossbeam 3, and the axis of main shaft 21 is vertical with crossbeam 3 in the main shaft device 2.In order can to process the train body that is in machine tool for train body top, the end 211 that main shaft 21 is used for mounting cutter in the main shaft device 2 in the present embodiment up.That is to say, after the main shaft device 2 in the present embodiment is installed cutter, can train body be processed in the bottom of train body to be processed, thereby can realize the support portion of the train body of assembly welding moulding is processed.Wherein, the main shaft device 2 in the present embodiment can adopt transmission mechanism and feed mechanism in the existing lathe, and its concrete structure and annexation repeat no more.
The present embodiment machine tool for train body, by crossbeam being set and main shaft device being slidingly installed on the crossbeam, main shaft device can slide along the bearing of trend of crossbeam, make main shaft device can slide into accurately the manufacturing position of appointment, then the feed motion by main shaft device, push main shaft to train body to be processed, thereby realize in the bottom surface of train body train body being processed.
Based on technique scheme, optional, the present embodiment machine tool for train body also comprises the pedestal 5 that fixes on the ground, and guide rail 4 is installed on the pedestal 5.Concrete, in the process that train body is processed, weaken the vibrations that lathe produces, to improve the machining accuracy of car body, the present embodiment machine tool for train body also comprises pedestal 5, this pedestal 5 fixes on the ground, and guide rail 4 is fixed on the pedestal 5.The present embodiment machine tool for train body firmly fixes on the ground by pedestal 5, and the vibrations that produced when having weakened machine tooling improve the train body accuracy of manufacture.In addition, because crossbeam 3 is vertical with the glide direction of column 1, the cutter that assembles on the present embodiment machine tool for train body can be moved in three directions: direction one, column 1 drive main shaft device 2 and crossbeam 3 slides at guide rail 4, for example, and with direction one called after directions X; Direction two, main shaft device 2 slide at crossbeam 3, and the glide direction of main shaft device 2 is vertical with the glide direction of machine pillar 1, for example, and with direction two called after Y-directions; Main shaft 21 in direction three, the main shaft device 2 is moving perpendicular to column 1 glide direction bottom and top feed, for example, and with direction three called after Z directions.As from the foregoing, the cutter that assembles on the present embodiment machine tool for train body, can move at X, Y and three orthogonal directions of Z, main shaft 21 moves in X, Y and three directions of Z and can lean on digital control system (not shown) to drive and can link, thereby make the present embodiment machine tool for train body can be more prone to train body is made, more be conducive to improve the accuracy of manufacture of train body.
Further, the present embodiment machine tool for train body can also comprise: measurement mechanism (not shown), measurement mechanism are used for measuring center line on the train body length direction to be manufactured and the depth of parallelism between the guide rail 4.Concrete, the measurement mechanism in the present embodiment can be measured train body in manufacture process, with the convenient position of adjusting timely train body, makes center line and guide rail 4 keeping parallelisms on the train body length direction.Wherein, the measurement mechanism in the present embodiment can be the Reinshaw probe, also can be the measurement mechanism of other types, and embodiment of the invention machine tool for train body embodiment does not limit the performance entity of measurement mechanism.
The present embodiment machine tool for train body, the pedestal by setting fixes on the ground fixes the present embodiment machine tool for train body on the ground, weakens the vibrations that lathe produces, to improve the machining accuracy of car body.In addition, the cutter that assembles on the present embodiment machine tool for train body, can move at X, Y and three orthogonal directions of Z, thereby make the present embodiment machine tool for train body can be more prone to train body is made, more be conducive to improve the accuracy of manufacture of train body.By measurement mechanism is set, the result that can measure according to measurement mechanism in time adjust the position of train body, makes center line on the train body length direction and the guide rail keeping parallelism of lathe, thereby further improves the accuracy of manufacture of train body.
Fig. 4 is the structural representation of embodiment of the invention car lifting jack for train car body, and Fig. 5 a is the partial schematic diagram of a-quadrant among Fig. 4, and Fig. 5 b is the partial schematic diagram in B zone among Fig. 4, and Fig. 5 c is the partial schematic diagram in C zone among Fig. 4.Shown in Fig. 4-Fig. 5 c, the present embodiment car lifting J-Horner can be applied in the train body manufacture method of the present invention.The present embodiment car lifting J-Horner comprises: holder 1 and symmetrically arranged two groups of bracing frames 2.
Particularly, the present embodiment car lifting J-Horner is used for train body to be processed built on stilts, so that special-purpose machine tool for train body is processed train body in the train body bottom; And adjusting device can be regulated up and down to the train body that is placed on the bracing frame 2 so that train body can be processed accurately.
In order to make things convenient for the whole processing of car body, bracing frame 2 also can slide bracing frame 2 accurately at holder 1, and the upper end of the holder 1 in the present embodiment can be provided with slide rail (not shown); Bracing frame 2 can comprise Top Crossbeam 23, lower cross arm 21 and armstand 22; The two ends of armstand 22 are fixedly connected with lower cross arm 21 with Top Crossbeam 23 respectively; Lower cross arm 21 bottoms offer chute (not shown), and slide rail is slidingly installed in the chute; Adjusting device is arranged on the Top Crossbeam 23.Concrete, the slide rail that arranges by the upper end with holder 1 is slidingly installed in the chute of offering lower cross arm 21 bottoms, and bracing frame 2 can be slided with respect to holder 1 accurately along slide rail.In addition, bracing frame 2 is comprised of Top Crossbeam 23, lower cross arm 21 and armstand 22 3 parts, and more convenient bracing frame 2 is made moulding.For example, Top Crossbeam 23, lower cross arm 21 and armstand 22 can be formed side U-shaped structure, thereby conveniently train body to be manufactured is placed into Top Crossbeam 23 in order to make.
Further, in order to make sliding at holder 1 that bracing frame 2 can be level and smooth, and after bracing frame 2 slides into assigned address, can effectively bracing frame 2 be fixed on the holder 1, lower cross arm 21 bottoms in the present embodiment can be hinged with pulley gear 4, and the pulley 41 in the pulley gear 4 is resisted against on the holder 1; Lower cross arm 21 can also be provided with locking system 5, and locking system 5 is used for lower cross arm 21 is locked at holder 1.Concrete, lower cross arm 21 bottoms can be provided with a plurality of pulley gears 4 as required, for example, can be respectively arranged with in the both sides of lower cross arm 21 chutes two groups of pulley gears 4, thereby can pass through four pulley gear 4 bearing support framves 2.Because bracing frame 2 contact with holder 1 by pulley 41, and bracing frame 2 also will continue the slide rail slip on the holder 1, thereby make bracing frame 2 can pass through pulley gear 4 smoothly accurately in holder 1 slip.In addition, the locking system 5 in the present embodiment can after bracing frame 2 moves to assigned address, firmly be locked at bracing frame 2 on the holder 1.For example, locking system 5 can comprise top board 51, be installed in pressure ball 52 and bolt 53 on the top board 51.When needs locking support frame 2, then bolt 53 is tightened, make top board 51 drive pressure ball 52 and be pressed on the holder 1, thereby realize bracing frame 2 is locked on the holder 1.
Describe below in conjunction with the use procedure of accompanying drawing to the present embodiment car lifting J-Horner.For train body to be manufactured is supported, normal operation two overlaps car lifting J-Horners, and with the parallel placement of two cover car lifting J-Horners.According to the size of train body to be manufactured, regulate the distance between two bracing frames 2, so that train body can be placed on the bracing frame 2; Then regulate train body by adjusting device, make train body be in poised state, so that machine tool for train body is processed.
The present embodiment car lifting J-Horner, by train body to be processed is placed on the bracing frame, can train body to be processed is built on stilts, thus machine tool for train body can below train body, be processed the support portion on the train body bottom surface.
Based on technique scheme, optional, the adjusting device in the present embodiment can comprise hydraulic cylinder 31, and hydraulic cylinder 31 vertically is installed on the Top Crossbeam 23.Concrete, train body to be processed is placed on the hydraulic cylinder 31 of bracing frame 2, and is flexible by control hydraulic cylinder 31, can effectively regulate the height of train body.
Further, the adjusting device in the present embodiment can also comprise lateral adjustment device 32, and lateral adjustment device 32 is installed on the Top Crossbeam 23 and is positioned at a side of hydraulic cylinder 31, and the hydraulic cylinder 31 on two groups of bracing frames 2 is between two side direction adjusting devices 32.
Particularly, adjusting device in the present embodiment also comprises lateral adjustment device 32, two hydraulic cylinders 31 on two groups of bracing frames that are oppositely arranged 2 are between two lateral adjustment devices 32, lateral adjustment device 32 can carry out the adjusting of side direction to the train body that is placed on the bracing frame 2 so that the train body length direction on center line and the guide rail parallel in the machine tool for train body.Wherein, the lateral adjustment device 32 in the present embodiment can comprise mount pad 321, threaded rod 322, worm gear 324 and worm screw 323.Mount pad 321 is installed on the Top Crossbeam 23; Worm gear 324 is articulated on the mount pad 321 and with worm screw 323 and is threaded; Worm screw 323 is installed with runner 3231 away from an end of worm gear 324; Worm gear 324 offers screwed hole (not shown), and threaded rod 322 is screwed onto in the screwed hole, and threaded rod 322 offers gathering sill 3221, and the guide pad 3211 that arranges on the mount pad 321 is slidingly installed in the gathering sill 3221; Be provided with an angle between the axis of the axis of threaded rod 322 and hydraulic cylinder 31, stretching out of threaded rod 322 is directed upwardly.Concrete, the mount pad 321 in the present embodiment is fixed on the Top Crossbeam 23; And worm gear 324 is articulated on the mount pad 321 so that worm gear 324 can rotate with respect to mount pad 321; Threaded rod 322 is screwed onto in the screwed hole of worm gear 324, and is slidingly equipped with the guide pad 3211 on the mount pad 321 in the gathering sill 3221 offered of threaded rod 322, thereby threaded rod 322 can not be rotated with respect to mount pad 321.In use, make worm screw 323 drive worm gear 324 by rotating wheel 3231 and rotate, drive threaded rod 322 along guide pad 3211 slips by worm gear 324 again, thereby can effectively regulate the position of train body.
Further, the present embodiment car lifting J-Horner can also comprise hydraulic power unit (not shown) and control device (not shown), and hydraulic power unit is connected with hydraulic cylinder 31, and being used for provides power to hydraulic cylinder 31; Control device is connected with hydraulic power unit, is used for the control hydraulic power unit to drive hydraulic cylinder 31 operations.Concrete, operating personnel control the operation of hydraulic power unit by control device, thereby can control hydraulic cylinder 31 easily, to regulate the height of train body to be processed.
The present embodiment car lifting J-Horner, by hydraulic cylinder and lateral adjustment device, can effectively regulate the position that is placed into the train body to be processed on the car lifting J-Horner, make train body that placement can be installed more accurately, thereby be convenient to the accurate machining of machine tool for train body.
It should be noted that at last: above embodiment is only in order to illustrate technical scheme of the present invention, although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (4)
1. a car lifting jack for train car body is characterized in that, comprising: holder and symmetrically arranged two groups of bracing frames; Support frame as described above and described holder are slidingly connected, the support frame as described above upper end is provided with adjusting device, described adjusting device is for the position of the train body of regulating described car lifting jack for train car body support, the lathe of stating train body to be used in machining can be positioned at described train body below, and described lathe can be processed the described train body that is positioned at described lathe top;
The upper end of described holder is provided with slide rail; Support frame as described above comprises Top Crossbeam, lower cross arm and armstand; The two ends of described armstand are fixedly connected with described lower cross arm with described Top Crossbeam respectively; Described lower cross arm bottom offers chute, and described slide rail is slidingly installed in the described chute; Described adjusting device is arranged on the described Top Crossbeam;
Described adjusting device also comprises the lateral adjustment device, and described lateral adjustment device is installed on the described Top Crossbeam and is positioned at a side of hydraulic cylinder, and the described hydraulic cylinder on two groups of support frames as described above is between two described lateral adjustment devices;
Described lateral adjustment device comprises mount pad, threaded rod, worm gear and worm screw; Described mount pad is installed on the described Top Crossbeam; Described worm gear is articulated on the described mount pad and with described worm thread and is connected; Described worm screw is installed with runner away from an end of described worm gear; Described worm gear offers screwed hole, and described threaded rod is screwed onto in the described screwed hole, and described threaded rod offers gathering sill, and the guide pad that arranges on the described mount pad is slidingly installed in the described gathering sill; Be provided with an angle between the axis of described threaded rod and the axis of described hydraulic cylinder, stretching out of described threaded rod is directed upwardly.
2. car lifting jack for train car body according to claim 1 is characterized in that, described adjusting device comprises described hydraulic cylinder, and described hydraulic cylinder vertically is installed on the described Top Crossbeam.
3. car lifting jack for train car body according to claim 1 is characterized in that, also comprises hydraulic power unit and control device, and described hydraulic power unit is connected with described hydraulic cylinder, and being used for provides power to described hydraulic cylinder; Described control device is connected with described hydraulic power unit, is used for controlling described hydraulic power unit to drive described hydraulic cylinder operation.
4. car lifting jack for train car body according to claim 1 is characterized in that, described lower cross arm bottom is hinged with pulley gear, and the pulley in the described pulley gear is resisted against on the described holder; Described lower cross arm also is provided with locking system, and described locking system is used for described lower cross arm is locked at described holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110135617 CN102218666B (en) | 2010-02-04 | 2010-02-04 | Car lifting jack for train car body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110135617 CN102218666B (en) | 2010-02-04 | 2010-02-04 | Car lifting jack for train car body |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101077835A Division CN101797683B (en) | 2010-02-04 | 2010-02-04 | Machine tool for train body |
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| Publication Number | Publication Date |
|---|---|
| CN102218666A CN102218666A (en) | 2011-10-19 |
| CN102218666B true CN102218666B (en) | 2013-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110135617 Active CN102218666B (en) | 2010-02-04 | 2010-02-04 | Car lifting jack for train car body |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2241654Y (en) * | 1995-11-29 | 1996-12-04 | 贺龄山 | Mechanically-driven double-column linked car lifting jack |
| CN101186006A (en) * | 2007-12-20 | 2008-05-28 | 唐山轨道客车有限责任公司 | Railroad car bodywork assembly integral processing technique |
| CN201231752Y (en) * | 2008-06-25 | 2009-05-06 | 长春轨道客车股份有限公司 | Mobile multipurpose lifting vehicle mechanism |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6626625B2 (en) * | 2000-07-20 | 2003-09-30 | Roger Nelson | System and method for partitioning cargo areas |
-
2010
- 2010-02-04 CN CN 201110135617 patent/CN102218666B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2241654Y (en) * | 1995-11-29 | 1996-12-04 | 贺龄山 | Mechanically-driven double-column linked car lifting jack |
| CN101186006A (en) * | 2007-12-20 | 2008-05-28 | 唐山轨道客车有限责任公司 | Railroad car bodywork assembly integral processing technique |
| CN201231752Y (en) * | 2008-06-25 | 2009-05-06 | 长春轨道客车股份有限公司 | Mobile multipurpose lifting vehicle mechanism |
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| Publication number | Publication date |
|---|---|
| CN102218666A (en) | 2011-10-19 |
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