CN106217327A - A kind of metallurgical vehicle metallurgy vehicle pillow pulling component maintenance positioner - Google Patents
A kind of metallurgical vehicle metallurgy vehicle pillow pulling component maintenance positioner Download PDFInfo
- Publication number
- CN106217327A CN106217327A CN201610687997.1A CN201610687997A CN106217327A CN 106217327 A CN106217327 A CN 106217327A CN 201610687997 A CN201610687997 A CN 201610687997A CN 106217327 A CN106217327 A CN 106217327A
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- China
- Prior art keywords
- box body
- floating bush
- hollow box
- pulling component
- pillow pulling
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
- B25H1/10—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby with provision for adjusting holders for tool or work
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses metallurgical vehicle metallurgy vehicle pillow pulling component maintenance positioner, it includes occurring in pairs and symmetrical horizontal mobile mechanism, elevating mechanism, switching mechanism and clamp system spaced apart, described horizontal mobile mechanism include hollow base (1) and be positioned at the hollow box body (2) of hollow base, described hollow box body two side bottom is fitted with slide rail (3), described hollow box body one end is connected with the cross cylinder (4) that hollow box body can be driven to move horizontally along slide rail；The invention has the beneficial effects as follows and reduce the pressure that Vertical Cylinders is born, and protect to the offer that moves up and down of Vertical Cylinders, kinetic stability and the rigidity of Vertical Cylinders are protected, and then improve the stability that pillow pulling component maintenance positioner is overall.
Description
Technical field
The present invention relates to railway repair apparatus, particularly for the positioner of maintenance railway metallurgical vehicle metallurgy vehicle pillow pulling component.
Background technology
Pillow pulling component is that railway metallurgical vehicle metallurgy vehicle is in operation one of parts the most easy to wear, in use can cause
Considerable wear, runs safety in order to ensure vehicle, and the pillow pulling component of vehicle needs often maintenance, and pillow pulling component needs when maintenance
Moving up and down and overturn, in order to the comprehensive upkeep operation that carries out, conventional each rolling stock section mostly uses manual work, to service work
Bring inconvenience.Increase maintenance difficulty, make the labor intensity of work be greatly increased, also reduce simultaneously overhaul efficiency and
Quality.Chinese utility model patent application number CN02210873.4 discloses a kind of truck turning machine, including switching mechanism and
Elevating mechanism, it is characterized by switching mechanism, and including sleeve, worm gear case, chuck, upper sleeve pipe, clamping cylinder, sleeve level is located in
On worm gear case, the outer wall of sleeve is provided with gear ring, and this gear ring is meshed with the worm gear in worm gear case, and clamping cylinder is arranged on sleeve
In, chuck is arranged on the front end of sleeve, and the front portion in sleeve is equiped with a spring housing, and spring housing is equiped with spring, clamping oil
The front end of cylinder piston is fixing with the rear end of chuck to be connected, and adapter is fixed in the bottom of worm gear case；Elevating mechanism includes inner sleeve
Cylinder, outer sleeve, hoist cylinder and positional cylinder, inner sleeve and outer sleeve phase fit, the upper end of inner sleeve and worm gear case lower end
Lower linking tube is fixing to be connected, and hoist cylinder is fixed on outer sleeve by cylinder rack, and its piston upper end thereof is on lower linking tube.This
Bright with maintenance conveyer coordinates, make the handling of bogie and upset be automatically performed, to service work bring convenience.But this patent
Drive mechanism is complicated, and clamping cylinder is carried on hoist cylinder, adds extra duty to hoist cylinder, and hoist cylinder passes through axle
Seat and lower linking tube are affixed with inner sleeve, and this kind of connected mode is very big, at the liter of hoist cylinder to the pressure of the applying of hoist cylinder
Easily produce during fall and rock, affect the degree of stability of hoist cylinder work.
Summary of the invention
The technical problem to be solved in the present invention is that the stability of the hoist cylinder work of existing truck turning machine is with just
Property cannot ensure, life-time service easily causes potential safety hazard, provides a kind of metallurgical vehicle metallurgy vehicle pillow pulling component maintenance positioner for this.
The technical scheme is that a kind of metallurgical vehicle metallurgy vehicle pillow pulling component maintenance positioner, it includes occurring in pairs and symmetrical
Horizontal mobile mechanism, elevating mechanism, switching mechanism and clamp system spaced apart, described horizontal mobile mechanism includes at the bottom of hollow
Seat and be positioned at the hollow box body of hollow base, described hollow box body two side bottom is fitted with slide rail, described hollow box body one end
It is connected with the cross cylinder that hollow box body can be driven to move horizontally along slide rail；Described elevating mechanism includes being built in hollow box body
Vertical Cylinders moving up and down, the top of described Vertical Cylinders be connected with carrying switching mechanism chassis；Described tipper
Structure includes main transmission casing and auxiliary driving casing, is fitted with respectively being decelerated motor in described main transmission casing and secondary transmission case body
Drive rotatable power transmission shaft；Described clamp system includes the engaging pedestal affixed with power transmission shaft end, described engaging base
Freely extend horizontally away the first claw and the second claw on seat to the direction away from power transmission shaft, described second claw can be relative to card
Close pedestal to rotate to coordinate the clamping realized pillow pulling component with the first claw.
The improvement of such scheme is that between described Vertical Cylinders and hollow box body inwall, ecto-entad is fitted with fixing successively
Lining, the first floating bush and the second floating bush, described stationary bushing is affixed with hollow box body, described first floating bush top
Portion offers seam, and described second floating bush top is affixed with chassis, is connected with guide collar bottom described second floating bush,
The outer portion of described seam can coordinate with stationary bushing top and realizes spacing to the first floating bush, described seam interior along portion
Can coordinate with guide collar and realize spacing to the second floating bush.
Guide collar described in such scheme at least 2, spaced apart at the length direction of the second floating bush, and with
The contact internal walls of one floating bush.
Improving further of such scheme is that described first claw upper surface interval is only connected with the first stop block and second
Block, the line of described first stop block and the second stop block is parallel with the transversal line of engaging pedestal.
The side bottom of hollow box body two described in such scheme be connected with can on slide rail the roller of movement.
The invention has the beneficial effects as follows and reduce the pressure that Vertical Cylinders is born, and carry to moving up and down of Vertical Cylinders
For protection, kinetic stability and the rigidity of Vertical Cylinders are protected, and then improve the steady of pillow pulling component maintenance positioner entirety
Qualitative.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of one embodiment of the invention；
Fig. 2 is the schematic diagram of another embodiment of the present invention；
In figure, 1, hollow base, 2, hollow box body, 3, slide rail, 4, cross cylinder, 5, Vertical Cylinders, 6, chassis, 7, main transmission box
Body, 8, auxiliary driving casing, 9, reducing motor, 10, power transmission shaft, the 11, first claw, the 12, second claw, 13, stationary bushing, 14,
First floating bush, the 15, second floating bush, 16, seam, 17, guide collar, the 18, first stop block, the 19, second stop block,
20, roller.
Detailed description of the invention
The present invention will be further described below in conjunction with the accompanying drawings.
As shown in Figure 1 and Figure 2, the present invention includes occurring in pairs and symmetrical horizontal mobile mechanism spaced apart, elevator
Structure, switching mechanism and clamp system, can claim the horizontal mobile mechanism on the left side, elevating mechanism, switching mechanism and clamp system
For left metallurgical vehicle metallurgy vehicle pillow pulling component overhaul positioner, by the horizontal mobile mechanism on the right, elevating mechanism, switching mechanism and clamping machine
Structure is referred to as right metallurgical vehicle metallurgy vehicle pillow pulling component maintenance positioner.Described horizontal mobile mechanism includes hollow base 1 and is positioned at the bottom of hollow
Hollow box body 2 in Zuo, described hollow box body two side bottom are fitted with slide rail 3, and described hollow box body one end is connected with and can drive
The cross cylinder 4 that hollow box body moves horizontally along slide rail；Described elevating mechanism include being built in hollow box body can on move down
Dynamic Vertical Cylinders 5, the top of described Vertical Cylinders is connected with the chassis 6 of carrying switching mechanism；Described switching mechanism includes main
(right) transmission case body 7 and secondary (left) transmission case body 8, be fitted with being decelerated electricity in described main transmission casing and secondary transmission case body respectively
Machine 9 drives rotatable power transmission shaft 10；Described clamp system includes the engaging pedestal affixed with power transmission shaft end, described card
Closing and freely extend horizontally away the first claw 11 and the second claw 12 to the direction away from power transmission shaft on pedestal, described second claw can
Rotate to coordinate the clamping realized pillow pulling component with the first claw relative to engaging pedestal.
Present invention is mainly used for city railway vehicle pillow pulling component manufacturing or during maintenance, its framework is being carried out 360
The upset of degree scope is also reliably locked at any station of this scope, meets the needs assembling framework repair and multi-faceted parts.
This equipment can be used for pillow pulling component online assignment operating mode, and left and right metallurgical vehicle metallurgy vehicle pillow pulling component maintenance positioner symmetry interval is arranged in
Pillow pulling component runs the both sides of track, and it is the most reliable that major and minor switching mechanism can realize synchronization lifting by hydraulic cylinder and control system
Locking.Major and minor switching mechanism can move along the direction being perpendicular to repair line and reliably lock at the same time or separately, main switching mechanism energy
Effectively providing the power needed for upset workpiece, reversal rate is adjustable and reliably can lock at any station, secondary switching mechanism and master
Switching mechanism supports the use, and major and minor switching mechanism is respectively equipped with clamp system, preferably uses hydraulic clamp mode.Complete machine layout is closed
Reason, structure is simple and direct, compact, operates safe and reliable.
Slide rail in the present invention can be integrally fixed at the I-steel on hollow base, and corresponding hollow box body two bottom sides is opened
It is provided with and the open slot of I-steel external shape fits, in order to hollow box body can be moved back and forth on slide rail.Major and minor tipper
Structure is respectively provided with a set of identical hydraulicefficiency elevation structure, and often set hydraulicefficiency elevation structure can be by two secondary synchronization lifting hydraulic cylinder structures
Become, it is also possible to be made up of single width synchronization lifting hydraulic cylinder and realize the lifting action to switching mechanism, rise when using two secondary synchronizations
During descending liquid cylinder pressure, two set hydraulicefficiency elevation structures can synchronize to realize the synchronized loading to major and minor switching mechanism and lift, lifting hydraulic cylinder
Two pairs are a working cell, are arranged on packaged type hollow mounting base plate, and elevating mechanism is provided with linear displacement device, limit
Position alarm device, cut off self-lock protection, can by PLC control two overlap elevating mechanisms synchronization lifting actions, it is possible to manually distinguish
Operation single set elevating mechanism is to adapt to the operation needs of different operating mode.Hydraulic system is mainly by hydraulic pump, integrated control valve, electricity
The part composition such as machine, fuel tank, Pressure gauge, oil pipe, provides system liquid pressure power for each hydraulic actuator.
Main (right or left) switching mechanism is made up of main transmission casing, actuating device, reducing motor.Power of motor 3KW, output
Moment of torsion 4000Nm, speed adjustable range 0-5rpm, actuating device is worm and gear self-locking structure, and main transmission casing is that all steel welds case
Body, after postwelding destressing processes, machining makes, and final drive shaft is arranged in this casing by rolling bearing pair, and final drive shaft is defeated
Entering end to be connected with deceleration device and reducing motor, outfan is with to engage pedestal affixed.Main transmission cabinet base is by flange and hangs down
Straight oil cylinder connects.The secondary the most unpowered importation of (left or right) switching mechanism, remaining is with main switching mechanism.
As shown in Figure 1 one embodiment of the present of invention for include left and right horizontal mobile mechanism, left and right elevating mechanism, a left side,
Right switching mechanism and left and right clamp system, described horizontal mobile mechanism includes hollow base 1 and is positioned at the hollow of hollow base
Casing 2, described hollow box body two side bottom are fitted with slide rail 3, and described hollow box body one end is connected with and can drive hollow box body edge
The cross cylinder 4 that slide rail moves horizontally；Described elevating mechanism includes the moving up and down vertical oil being built in hollow box body
Cylinder 5, between Vertical Cylinders and hollow box body inwall, ecto-entad is fitted with stationary bushing the 13, first floating bush 14 and successively
Two floating bushes 15, described stationary bushing is affixed with hollow box body, and described first floating bush top offers seam 16, described
Second floating bush top is affixed with chassis, is connected with guide collar 17, the outer of described seam bottom described second floating bush
Portion can coordinate with stationary bushing top and realizes spacing to the first floating bush, and the interior of described seam can coordinate with guide collar along portion
Realizing spacing to the second floating bush, described guide collar has 2 or more, and the length direction at the second floating bush is spaced point
Cloth, and with the contact internal walls of the first floating bush, the top of described Vertical Cylinders is connected with the chassis 6 of carrying switching mechanism；Institute
State switching mechanism and include main transmission casing 7 and auxiliary driving casing 8, be fitted with respectively in described main transmission casing and secondary transmission case body
It is decelerated motor 9 and drives rotatable power transmission shaft 10；Described clamp system includes the engaging base affixed with power transmission shaft end
Seat, described engaging pedestal freely extend horizontally away the first claw 11 and the second claw 12 to the direction away from power transmission shaft, described
Second claw can rotate to coordinate the clamping realized pillow pulling component with the first claw relative to engaging pedestal.
Its operation principle is as follows: online pillow pulling component moves to major and minor switching mechanism, starts cross cylinder and makes to rise
Descending mechanism drives switching mechanism and clamp system near the two ends of pillow pulling component, and at this moment the first claw of clamp system slightly below leads
The bottom of pillow component, the second claw is slightly above the top of pillow pulling component, restarts Vertical Cylinders, and Vertical Cylinders drives the second floating
Lining rises, and the second floating bush will drive the first floating bush to rise due to the static friction of guide collar with the first floating bush,
To certain altitude, the first floating bush no longer rises, and the second floating bush continues to rise to the guide collar and first of its top
Along contact in the seam of floating bush, at this moment the first claw will contact with the bottom of pillow pulling component, and is believed by sensor passes
Number give the second claw be allowed to rotate to the top of pillow pulling component and be engaged, such first is stuck in the second claw just by pillow pulling component
Two ends clamp and pass through reducing motor and power transmission shaft up and down and drive pillow pulling component arbitrarily to overturn special angle, after maintenance
Second claw rotates and departs from pillow pulling top, and pillow pulling component continues on station and advances, and Vertical Cylinders declines, and drives second to float
Dynamic lining declines, and the second floating bush drives the first floating bush to decline, until the seam outer portion of the first floating bush is with solid
Determining the top contact of lining, cross cylinder drives elevating mechanism one workpiece that resetted to circulate.Use three layers of lining the most fixing
The advantage of lining the-the first floating bush the-the second floating bush is to ensure the stationarity of vertical cylinder lifting, strengthens Vertical Cylinders
Rigidity, due to elevating mechanism and clamp system, clamp system and pillow pulling component connection all for being rigidly connected, thereby ensure that left
Elevating mechanism and the synchronous operation of right elevating mechanism, if the cylinder piston-rod displacement in left and right elevating mechanism is asynchronous, lift fast
By wait rise slow down to reach synchronization lifting；Owing to guide collar has more than 2, it is ensured that it is steady that the second floating bush rises
Degree.What Vertical Cylinders was carried simultaneously only has switching mechanism to design horizontal mobile mechanism in Vertical Cylinders side, reduces and hangs down
The load of straight oil cylinder, improves system global reliability.
Another of above-described embodiment is deformed between stationary bushing and the first floating bush, the first floating bush and two
Being filled with lubricating oil between guide collar, guide collar and the first floating bush contact surface are embedded with steel ball, reduce the first floating with this
Stiction between lining and the second floating bush, it is ensured that the second floating bush quickly will take off with the first floating bush when rising
From, three layers of lining protection of stacking are formed between vertical cylinder and hollow box body when vertical cylinder rises to predetermined station.
As in figure 2 it is shown, an alternative embodiment of the invention for include horizontal mobile mechanism, elevating mechanism, switching mechanism and
Clamp system, described horizontal mobile mechanism includes hollow base 1 and is positioned at the hollow box body 2 of hollow base, described hollow box
Body two side bottom is fitted with slide rail 3, and described hollow box body one end is connected with the water that hollow box body can be driven to move horizontally along slide rail
Flat oil cylinder 4, hollow box body two side bottom be connected with can on slide rail the roller 20 of movement；Described elevating mechanism includes built-in
Vertical Cylinders moving up and down 5 in hollow box body, the top of described Vertical Cylinders is connected with the end of carrying switching mechanism
Dish 6；Described switching mechanism includes main (right) transmission case body 7 and secondary (left) transmission case body 8, described main transmission casing and secondary transmission case
Internal it be fitted with being decelerated motor 9 respectively and drive rotatable power transmission shaft 10；Described clamp system includes and power transmission shaft end
Hold affixed engaging pedestal, described engaging pedestal freely extend horizontally away to the direction away from power transmission shaft the first claw 11 and
Two claws 12, described second claw can rotate to coordinate the folder realized pillow pulling component with the first claw relative to engaging pedestal
Tightly, the first claw upper surface interval is connected with the first stop block 18 and the second stop block 19, and described first stop block and second is only
The line of block degree of freedom in order to retrain card dress workpiece two directions parallel with the transversal line of engaging pedestal, the second claw passes through
Hydraulic clamp drives to rotate and clamps quick, the reliable self-locking of energy.Ensure to be framed in overturning the reliable grip of any station.
Its operation principle is as follows: disengaging pillow pulling component one of the framework special hanger level in online pillow pulling component being sling
Fixed height, exits pillow pulling component other parts, winches to framework level equip the contour supporting seat frame in the middle of major and minor switching mechanism
On, start cross cylinder and elevating mechanism is advanced near framework two ends along slide rail, start Vertical Cylinders so that the first claw
Contacting with framework, activating sensor, signal is passed to the second claw by sensor, is allowed to rotate and sting relative to the first claw tightly
Framework upper end, checks and adjusts the location of workpiece, the clamp system lifting of major and minor switching mechanism is held workpiece simultaneously, and made framework shake
Sleeper beam lower cover dual-side mouth drops between the first stop block and the second stop block, unclamps and hang after manual rotation clamping device
Hook, is lifted to rational height by workpiece, and turning of work piece to required each station carries out relevant maintenance or parts assemble, and is framed in each
Drop to rational height after the horizontal station work of station rotates to feeding after completing time, hang up properly suspension hook, unclamp clamp system,
The lifting of workpiece slightly level being stopped, the horizontal rollback of major and minor dop dodges workpiece blanking to arranging station, then drops to initial
Position completes a workpiece circulation.
Claims (6)
1. a metallurgical vehicle metallurgy vehicle pillow pulling component maintenance positioner, it includes occurring in pairs and symmetrical spaced apart moves horizontally machine
Structure, elevating mechanism, switching mechanism and clamp system, is characterized in that described horizontal mobile mechanism includes hollow base (1) and is positioned at
Hollow box body (2) in hollow base, described hollow box body two side bottom are fitted with slide rail (3), and described hollow box body one end is solid
It is connected to the cross cylinder (4) that hollow box body can be driven to move horizontally along slide rail；Described elevating mechanism includes being built in hollow box body
Interior Vertical Cylinders moving up and down (5), the top of described Vertical Cylinders is connected with the chassis (6) of carrying switching mechanism；Institute
State switching mechanism and include main transmission casing (7) and auxiliary driving casing (8), fit respectively in described main transmission casing and secondary transmission case body
It is furnished with and is decelerated motor (9) and drives rotatable power transmission shaft (10)；Described clamp system includes affixed with power transmission shaft end
Engaging pedestal, described engaging pedestal freely extend horizontally away to the direction away from power transmission shaft the first claw (11) and second card
Pawl (12), described second claw can rotate to coordinate the clamping realized pillow pulling component with the first claw relative to engaging pedestal.
2. metallurgical vehicle metallurgy vehicle pillow pulling component maintenance positioner as claimed in claim 1 a kind of, it is characterized in that described Vertical Cylinders with in
Between empty cabinet wall, ecto-entad is fitted with stationary bushing (13), the first floating bush (14) and the second floating bush successively
(15), described stationary bushing is affixed with hollow box body, and described first floating bush top offers seam (16), and described second floats
Dynamic lining top is affixed with chassis, is connected with guide collar (17) bottom described second floating bush, and the outer portion of described seam can
Coordinating with stationary bushing top and realize spacing to the first floating bush, the interior of described seam can coordinate realization along portion with guide collar
Spacing to the second floating bush.
3. metallurgical vehicle metallurgy vehicle pillow pulling component maintenance positioner as claimed in claim 2 a kind of, is characterized in that described guide collar at least 2
Individual, spaced apart at the length direction of the second floating bush, and with the contact internal walls of the first floating bush.
4. metallurgical vehicle metallurgy vehicle pillow pulling component maintenance positioner as claimed in claim 3 a kind of, is characterized in that described stationary bushing and the
Lubricating oil, guide collar and the first floating bush it is filled with between one floating bush, between the first floating bush and two guide collar
Contact surface is embedded with steel ball.
5. a kind of metallurgical vehicle metallurgy vehicle pillow pulling component maintenance positioner as claimed in claim 1 or 2, is characterized in that on described first claw
Spaced surface is connected with the first stop block (18) and the second stop block (19), described first stop block and the line of the second stop block
Parallel with the transversal line of engaging pedestal.
6. a kind of metallurgical vehicle metallurgy vehicle pillow pulling component maintenance positioner as claimed in claim 1 or 2, is characterized in that described hollow box body two
Side bottom be connected with can on slide rail the roller (20) of movement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610687997.1A CN106217327A (en) | 2016-08-19 | 2016-08-19 | A kind of metallurgical vehicle metallurgy vehicle pillow pulling component maintenance positioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610687997.1A CN106217327A (en) | 2016-08-19 | 2016-08-19 | A kind of metallurgical vehicle metallurgy vehicle pillow pulling component maintenance positioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106217327A true CN106217327A (en) | 2016-12-14 |
Family
ID=57553287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610687997.1A Pending CN106217327A (en) | 2016-08-19 | 2016-08-19 | A kind of metallurgical vehicle metallurgy vehicle pillow pulling component maintenance positioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106217327A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107971980A (en) * | 2017-11-29 | 2018-05-01 | 铜陵市宏达家电有限责任公司 | A kind of bolster turn over machine equipped with slide unit |
| CN111792568A (en) * | 2020-06-19 | 2020-10-20 | 张家港市卓华金属科技有限公司 | Lawn mower maintenance elevating gear |
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| CN202910772U (en) * | 2012-11-19 | 2013-05-01 | 福州天一同益电气有限公司 | Flipped turnover car for assembling gas tank of inflatable cabinet |
| CN204736202U (en) * | 2015-05-16 | 2015-11-04 | 合肥聚星钢结构有限公司 | Automatic rotary device of H shaped steel |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004020158A1 (en) * | 2002-08-27 | 2004-03-11 | Ljubomir Nikolic | Universal stand for vehicle engines and gearboxes |
| CN201201139Y (en) * | 2008-06-02 | 2009-03-04 | 齐齐哈尔轨道交通装备有限责任公司 | Universal car body and base frame tilter |
| CN202367636U (en) * | 2011-08-08 | 2012-08-08 | 东风（十堰）底盘部件有限公司 | Vehicular cross beam assembling clamp |
| CN202318280U (en) * | 2011-11-14 | 2012-07-11 | 天津修船技术研究所 | Rotating device for container maintenance tools |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107971980A (en) * | 2017-11-29 | 2018-05-01 | 铜陵市宏达家电有限责任公司 | A kind of bolster turn over machine equipped with slide unit |
| CN111792568A (en) * | 2020-06-19 | 2020-10-20 | 张家港市卓华金属科技有限公司 | Lawn mower maintenance elevating gear |
| CN111792568B (en) * | 2020-06-19 | 2021-11-26 | 张家港市卓华金属科技有限公司 | Lawn mower maintenance elevating gear |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161214 |
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| RJ01 | Rejection of invention patent application after publication |