CN201367036Y - Double-oil cylinder A-shaped combined lifting and traversing device - Google Patents
Double-oil cylinder A-shaped combined lifting and traversing device Download PDFInfo
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- CN201367036Y CN201367036Y CNU2009201064185U CN200920106418U CN201367036Y CN 201367036 Y CN201367036 Y CN 201367036Y CN U2009201064185 U CNU2009201064185 U CN U2009201064185U CN 200920106418 U CN200920106418 U CN 200920106418U CN 201367036 Y CN201367036 Y CN 201367036Y
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Abstract
Disclosed is a double-oil cylinder A-shaped combined lifting and traversing device, wherein two hydraulic oil cylinders are combined to the A shape; the hydraulic oil cylinder is a multi-stage return hydraulic oil cylinder; and the wall of a cylinder barrel is provided with an oil return channel which forms a hydraulic working circuit with an external oil pump station and a high-pressure oil pipe through an oil return joint and an oil inlet joint at the upper and lower ends of an outer cylinder barrel. A piston rod of the oil cylinder adopts the inner clearance nesting type; the contact surface of a liner piston kinematic pair of each stage oil cylinder is provided with a guide ring which is manufactured with wear resistant and self-lubricating materials. The kinematic pair of each stage oil cylinder is provided with a self-lubricating multiple guide tape. The double-oil cylinder A-shaped combined lifting and traversing device can be used for resetting and heavy objects centering of the derailed vehicles with larger tonnage, the processing of the oil return channel of the oil cylinder is simple, the thickness of the wall of the cylinder barrel is not increased, the sealing and high-pressure resistance intensity is improved, when the oil cylinder is in the working condition of full lift, larger radial load can be endured, and the effective stroke of the piston is increased.
Description
Technical field
The utility model relates to a kind of all-hydraulic lifting, Traverse Displacement Unit, is specifically related to a kind of have high pressure, multi-stage oil cylinder, is used for weight set upright, the derail lifting Traverse Displacement Unit of vehicle rescue.
Background technology
At present, the multi-stage oil cylinder that is used to derail and adopts on the guideway vehicle rerailer of vehicle rescue, especially operation pressure reaches 60MPa, fineness ratio is at the overlength more than 10, ultrahigh pressure cylinder, traditional oil return circuit processing mode complex process, cost height, common mode along cylinder barrel wall axial drilling are processed into oil return circuit, following several situation may occur: the oil cylinder of longer size needs the technology of depth drill, and difficulty of processing is big; Reduce the compressive resistance of cylinder barrel after the boring, therefore needed to strengthen wall thickness dimension; The leak stopping sealing will be carried out in unnecessary duct, boring back, and high-pressure high-temperature environment uses down and has the risk of leaking; In recent years, also have, utilize gas potential energy that the mode of oil cylinder return is occurred at the piston upper chamber injecting compressed air.But along with oil cylinder is up, the air storage chamber volume diminishes, and ever-increasing air pressure opposite force acts on and reduces the oil cylinder load-carrying capacity on the piston greatly; Must inject high pressure air with special tool before the operation, labour intensity is big; In case sealing gland (rubber) because the abominable sealing effectiveness decline of ambient temperature, ageing failure, distortion, wearing and tearing cause gas leakage, can cause oil cylinder not return can't unload.
During the full lift work of the bigger multi-stage oil cylinder of existing same device, particularly lift, can not bear bigger radial load, thereby very easily make the oil sealing distortion on the piston cause the oil cylinder decompression to be toppled because of the deflection deformation of its generation.
Like product has been extensive use of oil sealing and the location of the cylinder cap of inner core thread connecting mode as secondary piston bar epicoele on piston cylinder, during high-pressure work, screw thread easily loses button, strengthen the effective travel that length of thread has then increased the length of oil cylinder and reduced secondary piston, be not suitable for using in the less complex space that rises.
The utility model content
In order to overcome multi-stage oil cylinder above shortcomings when working that existing guideway vehicle rerailer adopts, the purpose of this utility model is: a kind of pair of oil cylinder A type combined artificial lift Traverse Displacement Unit is provided, this device can be used for resetting of large tonnage derailing vehicle rescue and weight is set upright, the oil return circuit processing of its oil cylinder is simple, do not increase the cylinder barrel wall thickness, sealed high-voltage resistant intensity improves, oil cylinder is under full lift mode of operation, can bear bigger radial load, and can increase the effective travel of piston, oil cylinder can be adjusted the stress point of load voluntarily when work.
The technical scheme that its technical matters that solves the utility model adopts is as follows:
A kind of pair of oil cylinder A type combined artificial lift Traverse Displacement Unit, it comprises two hydraulic rams, two pivot shafts, two bases and supporting component, described two hydraulic rams are combined into the A type, be separately positioned on left and right two bases that have stand, two pivot shafts are installed in respectively on the stand of base inboard; Described supporting component is arranged on the top of two oil cylinders, and this supporting component comprises top cap, jacking pin and jacking, can rotating top cap be installed in the top of two oil cylinders, and planar support jacking or cambered surface support jacking and be installed on the cap of top by the jacking pin; Described hydraulic ram is the hydraulic ram of multistage return, is provided with way to cycle oil in the cylinder barrel wall, forms the hydraulic loop by the back leakage connection of outer cylinder upper/lower terminal and oil pump station, the high pressure fuel pipe of fuel inlet fitting and peripheral hardware.
The oil cylinder piston bar is the inner width nested type, and its axial distribution has the oil return guide groove of several lateral direction penetratings.
Contact surface in the cylinder sleeve piston motion pair of every grade of oil cylinder of described multistage hydraulic cylinder is provided with by the guide ring wear-resisting, that self-lubricating material is made.
In the kinematic pair of every grade of oil cylinder of described multistage hydraulic cylinder, be provided with the multi-guide of the profit certainly band in fine-tuning gap, oil cylinder piston, the piston rod in every grade of motion all be provided with one with the hole of high pressure resistant, wear-resistant guiding ring with oil sealing and axle oil envelope and three road guidance tapes.
Adopt the cylinder cap of trunnion piston bar as secondary cylinder, the hollow lumen of preceding stage piston is the cylinder barrel of secondary cylinder.
Front end at the oil cylinder fuel inlet fitting is equipped with manual check valve.
Owing to adopt technique scheme, make the utility model compared with prior art, have following beneficial effect:
1, the oil cylinder in the utility model adopts inner width nested type piston rod, reaches oil return circuit, this thin-walled property design-calculated high-voltage oil cylinder hydraulic circuit, and its technology is simple, can not increase the cylinder barrel wall thickness.
2, the utility model is with the hydraulic ram of multistage return, every grade of kinematic pair all is provided with hole high pressure resistant, the wear-resistant guiding ring and seals with oil sealing and axle oil, this high pressure combination sealing is compared with traditional O type or Y type rubber seal, and its high pressure resistant progression can improve 80%.
3, the utility model has used multiple self-lubricating formula guidance tape in the kinematic pair of every grade of oil cylinder, every grade of piston is when up, act on five road guidance tapes simultaneously, wherein three roads are pure guidance tape, twice are the wear-resistant guiding ring that the hole carries with oil sealing and axle oil envelope, can compensate the slight gap of filling between piston and the cylinder barrel voluntarily, make oil cylinder under full lift mode of operation, bear bigger radial load.
4, the cylinder cap of existing multi-stage oil cylinder adopts the inner core thread connecting mode usually, and especially the high-pressure thin-wall oil cylinder must cause shortening piston stroke with effective thread size lengthening to guarantee safety; The utility model has been cancelled the cylinder cap on the multi-stage oil cylinder, with the trunnion piston bar cylinder cap as secondary cylinder, has abandoned thread connecting mode, and the ratio size that is threaded has shortened 20mm during equal strength, has increased effective forced stroke of piston; With the multi-stage oil cylinder is example, the oil cylinder of the same height of contour of meaning person, if first order piston stroke increases 20mm, two-level oil cylinder's stroke just can increase 2X20mm, below analogizes.Increased effective forced stroke of piston.
5, be installed at the manual check valve of fast-assembling fuel inlet fitting front end, can guarantee under complicated site environment, in case oil pipe is damaged by external force, heavily loaded oil cylinder still can be kept oil pressure, unlikely toppling.
6, be provided with at the oil cylinder top can any rotating top cap for the utility model, be used to connect different load supports (jacking), its advantage is, can adjust the stress point of load during oil cylinder work voluntarily, avoided like product top cap with the screw thread hard connecting mode, can not arbitrarily turn round the adjustment angle, and easily cause the common fault of thread failure after stressed.
7, the subsidiary multiple supporting component of the utility model is to adapt to dissimilar load contact surfaces.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the structural representation of the two oil cylinder A type combined artificial lift Traverse Displacement Units of the utility model and sets upright working state schematic representation.
Fig. 2 is the view that hoists.
Fig. 3 is the reset mode scheme drawing.
Fig. 4 a is the front elevational schematic of single oil cylinder in the utility model.
Fig. 4 b is the schematic side view of single oil cylinder among Fig. 4 a.
Fig. 5 b is that the master of base in the utility model looks scheme drawing.
Fig. 5 a looks scheme drawing for the right side of Fig. 5 b.
Fig. 5 c is the schematic top plan view of Fig. 5 a.
Fig. 6 is the half section scheme drawing of inner width formula cylinder barrel in the utility model.
Fig. 7 is that cambered surface supports the jacking structural representation in the utility model.
Fig. 8 a looks scheme drawing for the utility model midplane supports jacking structure master.
Fig. 8 b is the schematic top plan view of Fig. 8 a.
Among the figure, 1. left oil cylinder, 2. right oil cylinder, 3. stand, 4. left base, 5. right base, 6. connecting panel, 7. tie bolt, 8. adjustment hole, 9. rail, 10. chock, 11. planar support jackings, 12. revolution top cap, 13 jacking pins, 14. multiple car bodies, 15. adaptor unions, 16. back leakage connection, 17. fuel inlet fittings, 18. manual check valves, 19. level cylinders, 20. elementary cylinder, 21. handles, 22. outer cylinders, 23. bottom, 24. pivot shafts, 25. base plates, 26. first supports the cave, 27. second support cave, 28. bedframes, 29. bale handle, 30. guiding annular distance oil sealings, 31. guide ring axle oils envelope, 32. the open loop guidance tape, 33. barrel inner width oil grooves, 34. jacking mounting holes, 35. the wedge type carriage, 36. adjust leading screw handwheel, 37. jacking framves, 38. the reticulate pattern bearing surface, 39. cambered surfaces support jacking, 40. arcwall face load.
The specific embodiment
Figure 1 shows that an embodiment of the two oil cylinder A type combined artificial lift Traverse Displacement Units of the utility model, this embodiment is applied to the guideway vehicle rerailer, and it comprises two heavy burden hydraulic rams, promptly left oil cylinder 1 and right oil cylinder 2.Two hydraulic rams are combined into A type (also claiming chevron shaped) and use, and can be used for than resetting after large-tonnage guideway vehicle such as the locomotive derailing.Two hydraulic rams are separately positioned on two bases that have stand 3, and promptly left oil cylinder 1 is arranged on the left base 4, and right oil cylinder 2 is arranged on the right base 5.Be connected two bases with tie bolt 7 by connecting panel 6.Two pivot shafts 24 are installed in respectively on the stand 3 of two base inboards.Top at two hydraulic rams is provided with supporting component, and this supporting component comprises revolution top cap 12, jacking pin 13 and jacking.Revolution top cap 12 can be around axially revolution arbitrarily of oil cylinder.Two jacking pins 13 pass revolution top cap 12 and link to each other with jacking.Jacking can be planar support jacking 11 shown in Figure 1 or cambered surface shown in Figure 7 supports jacking 39.Select different jackings for use according to different load support faces during rerailer work, select planar support jacking 11 among Fig. 1 for use, be fit to be risen the plane that the unlikely distortion of energy bearing pressure is arranged on the multiple car body 14, according to the plane of constraint size, the planar support jacking can change on length, width and is designed to plurality of specifications, adapting to different vehicles and lifting position, but the reticulate pattern bearing surface 38 shown in the upper surface working chart 8b is anti-skidding or lining band rubber, nylon sheet etc. to prevent to damage car body; As the load support face is arc, can select wedge shape carriage 35 shown in Figure 7 for use, and this carriage changes the position of wedge shape carriage 35 by adjusting leading screw handwheel 36, adapts to the variation of bearing surface radian; It is anti-skidding to be processed with ratchet on the weight-bearing surface of wedge shape carriage 35, and wedge shape bracket 35 also has the multiple angles specification to select for the user, also can be according to specific vehicle, and customized design becomes the fitfull contact surface.
The left oil cylinder 1 of present embodiment rerailer, right oil cylinder 2 pressurization back planes support jacking 11 and do not produced displacement all the time by the carrying surface of a multiple car body 14 of breakdown lorry becomes a vertex of a triangle; Two oil cylinders are these leg-of-mutton both sides; Two bases that connect together with connecting panel 6 constitute leg-of-mutton base; Two oil cylinders risen or descend by control oil channel, dynamically change the triangle both sides the length of side and with the angle on base, just can make vertex of a triangle (being played vehicle again) ascending, descending or sway.
In order to keep stressed controlled, be subjected to triangle of forces base should keep stable during work, length and locus all should be fixed before work; Length regulating method one is: two connecting panels 6 are fixed on the both sides of left base 4 and right base 5 respectively by two pairs of tie bolts 7, change the position in the adjustment hole 8 on the connecting panel 6, just can change the length on base; Method two is: left oil cylinder 1 and right oil cylinder 2 are placed on the stand 3 of base 4,5 inboards by the pivot shaft 24 that passes oil cylinder bottom 23, be processed with two on the stand 3 and support cave 26 or 27, oil cylinder is placed on the different support caves, and the distance of the pivot shaft 24 of two oil cylinders changes; The locus on base fixedly depends on two bases of rerailer and need set level, pad, and avoids sinking behind the pressurized; Can also can only pad as Fig. 1 by rail 9 and chock 10 with sleeper, shaped steel etc.
Should note following principle on the stressed layout of rerailer:
(1). according to playing multiple load, highly selecting the left oil cylinder 1 and the right oil cylinder 2 of suitable bore and lift for use, the characteristics of this rerailer are played the moment of multiple car body 14 built on stilts, the cylinder force maximum, progressively descend subsequently, because along with oil cylinder hoists, itself and ground-surface angle become greatly gradually, and the vertical jacking capacity of oil cylinder strengthens gradually, can not cause in the multiple process cylinder force to transfinite and topple.Load lifting built on stilts only can not be needed to change large calibre oil cylinder as oil cylinder, also can not cause danger;
(2). stressed vertex of a triangle should be tried one's best near a center of gravity that is played multiple car body 14, in order to avoid cause vehicle to topple during work, and rise in the multiple traversing process, the vertical projection on this summit can not drop on outside the leg-of-mutton base all the time; The base is long more, and the triangular apex that oil cylinder combination back forms is low more, can adapt to a less complex space, but the angle of oil cylinder and horizontal surface diminishes, and has reduced load-carrying ability;
(3). the traversing ability of this rerailer depends primarily on the lift of two oil cylinders, and lift is big more, and traversing scope is big more.
See also the list shown in Fig. 4 a and Fig. 4 b and prop up oil cylinder figure, a side of bottom 23 is processed into the inclined-plane, is beneficial to left oil cylinder 1, right oil cylinder 2 is placed in can be to tilted by triangle of forces base direction on the bracing frame.Handle 21 can be finished the mobile installation of oil cylinder easily.At oil cylinder fuel inlet fitting front end manual check valve 18 is housed, screws the handle of manual check valve 18 before the work,, can guarantee not decompression of oil cylinder in case generation fuel feeding change-over valve leaks, oil pipe comes off, damages.Fuel inlet fitting 17, back leakage connection 16 are for being with the ready-packaged joint of boiler check valve, and it is convenient to install, and the interior Residual oil of oil cylinder can not flow out when storing transportation.Back leakage connection 16 is installed on the adaptor union 15, for ease of using at the scene, can adjust the direction of oil pipe according to the customized adaptor union 15 of user's request, adaptor union 15 remove can about revolution, also attachment face can be processed into the inclined-plane, make back leakage connection 16 and oil cylinder angulation.Revolution top cap 12 is connected as a single entity with oil cylinder and can come off, again can be around axially revolution arbitrarily of oil cylinder, both can be convenient to jacking pin 13 quick insertions and connect planar support jacking 11, and also can adjust elimination planar support jacking 11 and be played the lateral thrust that multiple car body 14 contacts uneven generation.
Base view shown in Fig. 5 a, Fig. 5 b, Fig. 5 c, its bedframe 28 are made up of shaped steel, and two ends are provided with bale handle 29, and it is the component part of framed structure, is beneficial to onsite moving again; Two sides are welded with a pair of stand 3, and the cave is supported in cooresponding in groups two of processing on stand 3, and promptly first pivot shaft 24 two ends of supporting 27, two oil cylinders in the cave 26 and the second support cave are placed on and support in the cave; Select different support caves can change the position and the distance of two oil cylinders; Base plate 25 helps base 4 and sets level, pads.
Hydraulic ram in the utility model is the hydraulic ram of multistage return, as Fig. 4 a, Fig. 4 b and shown in Figure 6, the oil cylinder piston bar is the inner width nested type, its axial distribution has the oil return guide groove of several lateral direction penetratings, and the way to cycle oil that is located in the cylinder barrel wall forms the hydraulic loop by the back leakage connection 16 at outer cylinder two ends about in the of 22 and oil pump station, the high pressure fuel pipe of fuel inlet fitting 17 and peripheral hardware.Be provided with by the guide ring wear-resisting, that self-lubricating material is made at the cylinder sleeve of every grade of oil cylinder, the contact surface of piston motion pair, form by copper powder, graphite and the die casting of wear-resisting organic material matrix.Be provided with the multi-guide of the profit certainly band in fine-tuning gap in the kinematic pair of every grade of oil cylinder, be provided with open loop guidance tape 32 among Fig. 6, its inside and outside footpath can be amplified or contraction with the gap subtle change of its fitting surface, remains with kinematic pair sturdy.Oil cylinder piston in every grade of motion, the hole that piston rod all has a tape guide ring lead with oil sealing 30, axle oil envelope 31 and three road open loop guidance tapes 32.Barrel inner width oil groove 33 is the oil grooves in the piston rod (being the cylinder barrel of secondary oil cylinder 19) of elementary oil cylinder 20, and same oil groove has some, the hydraulic oil of primary piston epicoele can be transported in the secondary oil cylinder piston epicoele, forms way to cycle oil; The overcoat of oil groove 33 (being the piston rod of elementary oil cylinder 20) upper end has formed the cylinder cap of secondary oil cylinder 19, and the equal strength state is down than reducing thickness 20mm, the lift of the secondary oil cylinder 19 of favourable increase with the split type cylinder cap design that is threaded; The hollow lumen of preceding stage piston is the cylinder barrel of secondary cylinder.The interior cover of oil groove 33 (being the cylinder barrel of secondary oil cylinder 19) firmly is embedded in overcoat, guarantees when secondary cylinder 19 pressurizations are up to the limit not separated;
Figure 7 shows that cambered surface supports the scheme drawing of jacking, basic module is the jacking frame 37 that has jacking mounting hole 34, be processed with anti-skidding ratchet on the left and right sides wedge shape carriage 35, by adjusting leading screw handwheel 36, mobile wedge shape carriage 35, with axle class or the arcwall face load 40 that adapts to different size, wedge shape carriage 35 also can change customized design according to the load true form;
Fig. 8 a, 8b are front view and the birds-eye view that common plane supports jacking 11, different length, width plurality of specifications are arranged, as be used to set upright, optional extended type; Contact surface not at ordinary times, optional short dimensions; Upper surface is processed with reticulate pattern bearing surface 38, but the also material of multiple anti-skidding, antisitic defect mating surfaces such as lining rubber plate, nylon material.
Related high-voltage range of pressure is 40-60MPa in the utility model.
Working process embodiment of the present utility model is as follows:
Be illustrated in figure 1 as the example of setting upright of tilting vehicle, at first be installed in planar support jacking 11 on the revolution top cap 12 of two oil cylinders by two jacking pins 13; Connect the working oil path of two oil cylinders, the lifting by two oil cylinders makes planar support jacking 11 contact with a position of being played multiple car body 14 suitable load-bearing, and the planar support jacking 11 that is used to set upright should suitably extend, and is played again a car body 14 when being beneficial to set upright and stablizes; Shown in arrow among the figure, when hoisting right oil cylinder 2, shrink left oil cylinder 1, risen answer car body 14 slowly conter clockwise set upright.
Figure 2 shows that and played hoisting of multiple car body 14, the vehicle of slight inclination can progressively rise and roughly be set upright with hoisting respectively or simultaneously of two oil cylinders.
Figure 3 shows that risen multiple car body 14 traversing, reset, risen on the raised basis of multiple car body 14 shown in Figure 2, shrink left oil cylinder 1, right oil cylinder 2 hoists, then can make and be played multiple car body 14 to left dislocation, shrink two oil cylinders simultaneously after reaching the desired location, just can make the quilt of derailing vehicle play multiple car body 14 and reset smoothly.
Stressed vertex of a triangle is that the proper motion track of planar support jacking 11 is curves in the above working example, must constantly change the lifting altitude of two oil cylinders, makes its path of motion meet the on-the-spot multiple requirement that rises.In addition as to be played a multiple car body 14 derailing distances far away, when exceeding the traversing scope of oil cylinder, can the substep operation, i.e. traversing finishing back order is for the first time played a multiple car body 14 and falls and put surely, and the position that changes base and oil cylinder is again carried out subsequent job again.
Claims (7)
1, a kind of pair of oil cylinder A type combined artificial lift Traverse Displacement Unit, it is characterized in that: it comprises two hydraulic rams, two pivot shafts, two bases and supporting component, described two hydraulic rams are combined into the A type, be separately positioned on left and right two bases that have stand, two pivot shafts are installed in respectively on the stand of base inboard; Described supporting component is arranged on the top of two oil cylinders, and this supporting component comprises top cap, jacking pin and jacking, can rotating top cap be installed in the top of two oil cylinders, and jacking is installed on the cap of top by the jacking pin; Described hydraulic ram is the hydraulic ram of multistage return, is provided with way to cycle oil in the cylinder barrel wall, forms the hydraulic loop by the back leakage connection of outer cylinder upper/lower terminal and oil pump station, the high pressure fuel pipe of fuel inlet fitting and peripheral hardware.
2, according to claim 1 pair of oil cylinder A type combined artificial lift Traverse Displacement Unit, it is characterized in that: the oil cylinder piston bar is the inner width nested type, its axial distribution has the oil return guide groove of several lateral direction penetratings.
3, according to claim 1 pair of oil cylinder A type combined artificial lift Traverse Displacement Unit is characterized in that: the contact surface in the cylinder sleeve piston motion pair of every grade of oil cylinder of described multistage hydraulic cylinder is provided with by the guide ring wear-resisting, that self-lubricating material is made.
4, according to claim 1,2 or 3 described pairs of oil cylinder A type combined artificial lift Traverse Displacement Units, it is characterized in that: in the kinematic pair of every grade of oil cylinder of described multistage hydraulic cylinder, be provided with the multi-guide of the profit certainly band in fine-tuning gap, oil cylinder piston, the piston rod in every grade of motion all be provided with one with the hole of high pressure resistant, wear-resistant guiding ring with oil sealing and axle oil envelope and three road guidance tapes.
5, according to claim 1 pair of oil cylinder A type combined artificial lift Traverse Displacement Unit is characterized in that: adopt the cylinder cap of trunnion piston bar as secondary cylinder, the hollow lumen of preceding stage piston is the cylinder barrel of secondary cylinder.
6, according to claim 1 pair of oil cylinder A type combined artificial lift Traverse Displacement Unit, it is characterized in that: the front end at the oil cylinder fuel inlet fitting is equipped with manual check valve.
7, according to claim 1 pair of oil cylinder A type combined artificial lift Traverse Displacement Unit is characterized in that: described jacking is that planar support jacking or cambered surface support jacking.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201064185U CN201367036Y (en) | 2009-03-24 | 2009-03-24 | Double-oil cylinder A-shaped combined lifting and traversing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201064185U CN201367036Y (en) | 2009-03-24 | 2009-03-24 | Double-oil cylinder A-shaped combined lifting and traversing device |
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| CN201367036Y true CN201367036Y (en) | 2009-12-23 |
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| CNU2009201064185U Expired - Fee Related CN201367036Y (en) | 2009-03-24 | 2009-03-24 | Double-oil cylinder A-shaped combined lifting and traversing device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829025A (en) * | 2012-09-17 | 2012-12-19 | 李文娟 | Jacking hydraulic cylinder in damper |
| CN106043353A (en) * | 2016-06-03 | 2016-10-26 | 攀钢集团工程技术有限公司 | Heavy tank truck skip resetting method |
| CN106218666A (en) * | 2016-09-26 | 2016-12-14 | 王江山 | Hydraulic pressure re-railing block |
| CN106428105A (en) * | 2016-08-24 | 2017-02-22 | 中铁宝桥集团有限公司 | Traverse moving type hydraulic rerailer |
| CN111776002A (en) * | 2019-04-04 | 2020-10-16 | 吉林市祥隆铁路救援技术开发有限公司 | Multifunctional hydraulic lifting rescue equipment |
| CN112901600A (en) * | 2021-01-26 | 2021-06-04 | 中车青岛四方机车车辆股份有限公司 | Hydraulic execution unit, carriage lifting system and rail vehicle |
| CN113928814A (en) * | 2021-11-16 | 2022-01-14 | 无锡巨力重工股份有限公司 | Track centering correcting device |
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2009
- 2009-03-24 CN CNU2009201064185U patent/CN201367036Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829025A (en) * | 2012-09-17 | 2012-12-19 | 李文娟 | Jacking hydraulic cylinder in damper |
| CN102829025B (en) * | 2012-09-17 | 2015-02-04 | 李文娟 | Jacking hydraulic cylinder in damper |
| CN106043353A (en) * | 2016-06-03 | 2016-10-26 | 攀钢集团工程技术有限公司 | Heavy tank truck skip resetting method |
| CN106043353B (en) * | 2016-06-03 | 2017-11-14 | 攀钢集团工程技术有限公司 | Weight tank car jumps road repositioning method |
| CN106428105A (en) * | 2016-08-24 | 2017-02-22 | 中铁宝桥集团有限公司 | Traverse moving type hydraulic rerailer |
| CN106428105B (en) * | 2016-08-24 | 2018-12-04 | 中铁宝桥集团有限公司 | The traversing hydraulic re-railing block of type |
| CN106218666A (en) * | 2016-09-26 | 2016-12-14 | 王江山 | Hydraulic pressure re-railing block |
| CN111776002A (en) * | 2019-04-04 | 2020-10-16 | 吉林市祥隆铁路救援技术开发有限公司 | Multifunctional hydraulic lifting rescue equipment |
| CN112901600A (en) * | 2021-01-26 | 2021-06-04 | 中车青岛四方机车车辆股份有限公司 | Hydraulic execution unit, carriage lifting system and rail vehicle |
| CN113928814A (en) * | 2021-11-16 | 2022-01-14 | 无锡巨力重工股份有限公司 | Track centering correcting device |
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