CN112209309B - Can lift by crane supplementary prosthetic lifting device of rail vehicle wheel pair - Google Patents
Can lift by crane supplementary prosthetic lifting device of rail vehicle wheel pair Download PDFInfo
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- CN112209309B CN112209309B CN202010980015.4A CN202010980015A CN112209309B CN 112209309 B CN112209309 B CN 112209309B CN 202010980015 A CN202010980015 A CN 202010980015A CN 112209309 B CN112209309 B CN 112209309B
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- Prior art keywords
- plate
- rail vehicle
- lifting
- vehicle wheel
- hanging plate
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K13/00—Other auxiliaries or accessories for railways
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F13/00—Common constructional features or accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/22—Lifting frames, e.g. for lifting vehicles; Platform lifts with tiltable platforms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention relates to a lifting device capable of lifting a rail vehicle wheel set for auxiliary repair, which comprises a bottom plate, a supporting vertical frame arranged on the bottom plate, a bearing hanging plate with one end hinged to the top of the supporting vertical frame, a grabbing mechanism correspondingly and slidably arranged on the bearing hanging plate and an auxiliary baffle plate receiving mechanism, wherein an actuating mechanism is arranged at the bottom of the bearing hanging plate, supporting guide rail assemblies are symmetrically arranged on two sides of the bearing hanging plate, and an angle fine adjustment mechanism is arranged on the bottom plate. Compared with the prior art, the rail vehicle wheel set lifting device is simple to operate, has lower requirements on lifting environments and places, is less in limitation, is not easy to deviate in the lifting process due to the arranged grabbing mechanism, the bearing lifting plate and the auxiliary blocking plate, reduces safety risks, and realizes grabbing and placing of rail vehicle wheel sets with different heights due to the fact that the angle of the bearing lifting plate is changed and the auxiliary blocking plate is matched through the arranged angle fine adjustment mechanism, so that the applicability and the application range of the rail vehicle wheel set lifting device are greatly enhanced.
Description
Technical Field
The invention relates to the technical field of hoisting equipment, in particular to a hoisting device capable of hoisting railway vehicle wheel sets for auxiliary repair.
Background
For either remanufacturing to repair or replacement a new rail vehicle wheel set, it is necessary to lift the rail vehicle wheel set from a lower position to a higher position or to place the rail vehicle wheel set from a higher position to a lower position. The existing hoisting device for the wheel set of the railway vehicle is generally a common rope type hoisting machine on the market. In addition, the lifting height of the rail vehicle wheel set is limited, so that when the lifting equipment is applied to the field, the lifting equipment is troublesome to use, is not easy to operate, has high requirements on lifting environments and places, has certain limitations, and has the problems of certain safety risks and the like due to the fact that the rail vehicle wheel set is easy to deviate in the lifting process.
Disclosure of Invention
In order to solve the technical problem, the invention provides a lifting device capable of lifting a rail vehicle wheel set for auxiliary repair.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
the utility model provides a can lift by crane supplementary prosthetic lifting device of rail vehicle wheel pair, includes the bottom plate, sets up the support grudging post on the bottom plate, one end articulates the hanger plate that bears who supports grudging post top department, corresponds the mechanism and supplementary fender spiale mechanism of snatching of skid-mounted on bearing the hanger plate, the bottom that bears the hanger plate is equipped with and is used for ordering about the mechanism of snatching and supplementary fender spiale mechanism synchronous motion order about the mechanism, bear the hanger plate bilateral symmetry be equipped with rail vehicle wheel tread and rim adaptation in order to be used for supporting rail assembly, be equipped with the angle fine-tuning who is used for the fine adjustment to bear hanger plate inclination on the bottom plate.
Further, snatch the mechanism and include that the symmetric distribution snatchs the base plate, correspond the smooth dress of symmetry and press from both sides tight jack catch on snatching the base plate, correspond the double-end pneumatic cylinder that is grabbing the base plate and be connected with tight jack catch that sets up, the snatching of symmetric distribution is connected through the linking arm between the base plate, the linking arm is through first connecting rod smooth dress and be connected on bearing the hanger plate and with order about the mechanism.
Further, order about the mechanism including set up bearing hanger plate bottom order about the lead screw, with order about the motor of lead screw coaxial coupling, first connecting rod correspondence is connected on order about the lead screw, order about the lead screw and be connected with supplementary fender trigger mechanism.
Furthermore, the auxiliary blocking and connecting plate mechanism comprises an auxiliary blocking plate and an auxiliary motor, wherein the auxiliary blocking plate is arranged in the bearing hanging plate in a sliding mode through a hinged sliding seat, the auxiliary motor is arranged in the hinged sliding seat and is connected with the auxiliary blocking plate, and the hinged sliding seat is connected with the driving screw rod through a second connecting rod.
Furthermore, the support guide rail assembly comprises a tread and a rim guide rail which are symmetrically arranged at the lower parts of the two sides of the bearing hanging plate, and an arc-shaped connection guide rail arranged at the lower end parts of the tread and the rim guide rail.
Furthermore, the angle fine-tuning includes an adjusting seat cylinder arranged on the bottom plate, an adjusting screw rod and a lifting screw sleeve which are arranged in the adjusting seat cylinder and are in screw-thread fit with each other, and a hinged seat head arranged at the top of the lifting screw sleeve, wherein the adjusting screw rod is connected with an adjusting motor, the top of the lifting screw sleeve extends out of the adjusting seat cylinder, and the hinged seat head is hinged with an adjusting slide block which is slidably arranged at the bottom of the bearing hanging plate.
The invention has the beneficial effects that:
compared with the prior art, the rail vehicle wheel set lifting device is simple to operate, has lower requirements on lifting environments and places, is less in limitation, is not easy to deviate in the lifting process due to the arranged grabbing mechanism, the bearing lifting plate and the auxiliary blocking plate, reduces safety risks, and realizes grabbing and placing of rail vehicle wheel sets with different heights due to the fact that the angle of the bearing lifting plate is changed and the auxiliary blocking plate is matched through the arranged angle fine adjustment mechanism, so that the applicability and the application range of the rail vehicle wheel set lifting device are greatly enhanced.
Drawings
The invention is further illustrated with reference to the following figures and examples:
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic front view in half section of the present invention;
FIG. 3 is a schematic view of the projection from A-A in FIG. 1;
FIG. 4 is a schematic sectional view B-B of FIG. 3;
fig. 5 is an internal schematic view of the fine angle adjustment mechanism of the present invention.
In the figure: 1. a base plate; 2. a support stand; 3. a load-bearing hanger plate; 31. a first chute; 32. a second chute; 33. a third chute; 34. a fourth chute; 4. grabbing the substrate; 5. clamping jaws; 6. a double-headed hydraulic cylinder; 7. a connecting arm; 71. a first link; 8. driving the screw rod; 9. driving a motor; 10. an auxiliary blocking plate; 11. a hinged slide; 111. a second link; 12. an auxiliary motor; 13. adjusting the seat cylinder; 14. adjusting the screw rod; 15. adjusting the motor; 16. lifting the threaded sleeve; 17. a hinged mount head; 18. adjusting the sliding block; 19. tread and rim guide rails; 20. the arc is connected to the guide rail.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further explained in the following with the accompanying drawings and the embodiments.
As shown in fig. 1 to 5, a lifting device capable of lifting a rail vehicle wheel set for auxiliary repair comprises a base plate 1, a support stand 2 arranged on the base plate 1, a bearing hanging plate 3 with one end hinged to the top of the support stand 2, a grabbing mechanism and an auxiliary blocking and connecting plate mechanism which are correspondingly and slidably mounted on the bearing hanging plate 3, wherein an ordering mechanism for ordering the grabbing mechanism and the auxiliary blocking and connecting plate mechanism to synchronously move is arranged at the bottom of the bearing hanging plate 3, two sides of the bearing hanging plate 3 are symmetrically provided with an angle fine-adjusting mechanism which is matched with a rail vehicle wheel tread and a wheel rim and is used for supporting a guide rail assembly, and the base plate 1 is provided with an angle fine-adjusting mechanism for finely adjusting the inclination angle of the bearing hanging plate 3.
As a further improvement of the invention, the supporting stands 2 are distributed on the right side of the bottom plate 1, and the upper ends of the supporting stands 2 extend to the left for a distance for the hinged connection of the load-bearing hanger plates 3.
The right end part of the bearing hanging plate 3 is hinged to the upper end part of the supporting vertical frame 2, and the bottom of the left end is in contact with the left side of the bottom plate 1. The angle fine adjustment mechanism is connected with the bottom of the load-bearing hanging plate 3 on the left side.
As a further improvement of the invention, the grabbing mechanism comprises grabbing base plates 4 symmetrically distributed on two side edges of the bearing hanging plate 3, clamping jaws 5 correspondingly and symmetrically arranged on the grabbing base plates 4 in a sliding manner, and double-head hydraulic cylinders 6 correspondingly arranged on the grabbing base plates 4 and connected with the clamping jaws 5, the grabbing base plates 4 symmetrically distributed are connected through connecting arms 7, and the connecting arms 7 are arranged on the bearing hanging plate 3 in a sliding manner through first connecting rods 71 and connected with the driving mechanism.
The grabbing base plate 4 is provided with two symmetrical distribution at the front side and the rear side of the bearing hanging plate 3, each clamping jaw 5 on the grabbing base plate 4 is provided with two symmetrical distribution in the vertical direction, the bearing hanging plate 3 is correspondingly provided with a first sliding groove 31, the first sliding groove 31 is a through groove, and the first connecting rod 71 penetrates through the first sliding groove 31 and is connected with the driving mechanism.
The horizontal position between the grabbing base plate 4 and the bearing hanging plate 3 is required to ensure that an axle on a rail vehicle wheel pair is attached to the upper end face of the bearing hanging plate 3 after the clamping jaw 5 clamps the rail vehicle wheel pair.
As a further improvement of the present invention, the actuating mechanism includes an actuating screw 8 disposed at the bottom of the load-bearing hanging plate 3, and an actuating motor 9 coaxially connected to the actuating screw 8, the first connecting rod 71 is correspondingly connected to the actuating screw 8, and the actuating screw 8 is connected to the auxiliary catch mechanism.
The actuating mechanism serves to provide the power for the gripping mechanism and the auxiliary catch mechanism to move synchronously on the load-bearing hanger plate 3.
As a further improvement of the present invention, the auxiliary catch mechanism comprises an auxiliary catch plate 10 slidably mounted in the load hanger plate 3 via a hinge slide 11, and an auxiliary motor 12 disposed in the hinge slide 11 and connected to the auxiliary catch plate 10, wherein the hinge slide 11 is connected to the driving screw 8 via a second link 111.
The bearing hanging plate 3 is correspondingly provided with a second sliding groove 32 for the auxiliary blocking plate 10 and the hinged sliding seat 11 to move, and a third sliding groove 33 for the second connecting rod 111 to slide, wherein the third sliding groove 33 is a through groove.
The auxiliary baffle plate 10 is driven by the auxiliary motor 12 to turn out from the bearing hanging plate 3 and form a certain included angle with the upper end face of the bearing hanging plate 3, and the auxiliary baffle plate is matched with the grabbing mechanism to assist in bearing and supporting the rail vehicle wheel set, so that the gliding trend of the rail vehicle wheel set on the bearing hanging plate 3 is counteracted, and the baffle effect is achieved. In addition, when the rail vehicle wheel set is placed on other equipment such as detection equipment or repair equipment after the rail vehicle wheel set is hoisted to a high position from a low position, in order to place the rail vehicle wheel set conveniently, the auxiliary baffle plate 10 forms a connection plate by changing an included angle between the auxiliary baffle plate and the upper end face of the bearing hanging plate 3, and plays a role in assisting the rail vehicle wheel set to be placed.
As a further improvement of the present invention, the support rail assembly comprises a tread and rim rail 19 symmetrically disposed at the lower part of both sides of the load-bearing hanger plate 3, and an arc-shaped connecting rail 20 disposed at the lower end part of the tread and rim rail 19.
The tread and the flange guide rail 19 are used for limiting the rail vehicle wheels on the rail vehicle wheel pair, so that the rail vehicle wheel pair is prevented from shaking in the grabbing and lifting process, and on the other hand, the guide and support functions are also realized.
The arc-shaped connection guide rail 20 plays a role in transition connection, and when the grabbing mechanism grabs the rail vehicle wheel pairs, the rail vehicle wheels are guaranteed to roll onto the tread and the wheel flange guide rail 19.
As a further improvement of the present invention, the angle fine-adjustment mechanism includes an adjustment seat barrel 13 disposed on the bottom plate 1, an adjustment screw 14 and a lifting screw sleeve 16 disposed in the adjustment seat barrel 13 and in threaded fit with each other, and a hinged seat head 17 disposed on the top of the lifting screw sleeve 16, wherein the adjustment screw 14 is connected with an adjustment motor 15, the top of the lifting screw sleeve 16 extends out of the adjustment seat barrel 13, and the hinged seat head 17 is hinged with an adjustment slider 18 slidably mounted on the bottom of the load-bearing hanging plate 3.
The bottom of the bearing hanging plate 3 is provided with a fourth sliding groove 34, the adjusting slide block 18 is correspondingly and slidably arranged in the fourth sliding groove 34, and the bearing hanging plate 3 is jacked up by the lifting thread sleeve 16 through the hinged seat head 17 and the adjusting slide block 18 through the thread fit rotation between the adjusting screw 14 and the lifting thread sleeve 16, so that the bearing hanging plate 3 is subjected to angle adjustment around the hinged position of the bearing hanging plate 3 and the supporting vertical frame 2, and the inclination angle of the end surface of the bearing hanging plate 3 is changed to adapt to the lifting work in different use environments and different heights.
The rail vehicle wheel set grabbing and placing device is simple to operate, has low requirements on the hoisting environment and places, is less in limitation, enables the rail vehicle wheel set not to be prone to deviating in the hoisting process through the arranged grabbing mechanism, the bearing hanging plate and the auxiliary blocking plate, reduces safety risks, enables the rail vehicle wheel set grabbing and placing device to achieve grabbing and placing of the rail vehicle wheel set with different heights through the arranged angle fine adjustment mechanism and changing the angle of the bearing hanging plate to match with the auxiliary blocking plate, and greatly enhances the applicability and the application range of the rail vehicle wheel set grabbing and placing device
The working process is as follows:
the invention comprises two use cases of lifting the rail vehicle wheel pair from a low position to a high position and placing the rail vehicle wheel pair from the high position to a bottom position.
Hoisting the rail vehicle wheel pair from a low position to a high position: as shown in fig. 1, the present invention is in an initial state and is also in a ready state in such a use case. The clamping jaw 5 is pulled to move relatively through the double-end hydraulic cylinder 6 to clamp the rail vehicle wheel pair, and the rail vehicle wheels on the rail vehicle wheel pair are in contact with the arc-shaped connecting guide rail 20; then, starting the auxiliary motor 12 to drive the auxiliary blocking plate 10 to rotate to a certain angle, so that the auxiliary blocking plate 10 and the bearing hanging plate 3 form a certain included angle to limit the axle of the rail vehicle wheel pair; then, starting an actuating motor 9, actuating the grabbing mechanism and the auxiliary blocking plate 10 to move and lift the rail vehicle wheel pair upwards along the inclined end face of the bearing hanging plate 3 through an actuating screw rod 8, moving the rail vehicle wheels on the rail vehicle wheel pair along the tread and the flange guide rail 19 in the lifting process, and actuating the motor 9 to stop after the rail vehicle wheel pair is lifted to a set height; then, when the rail vehicle wheel pair needs to be placed at a high position, the clamping claws 5 continue to keep a clamping state; the inclination angle of the bearing hanging plate 3 is adjusted through an angle fine adjustment mechanism; and then, starting the auxiliary motor 12 to drive the auxiliary baffle plate 10 to rotate to a declined state, and then loosening the clamping of the clamping claws 5 on the rail vehicle wheel pair to place the rail vehicle wheel pair at a high position.
Hoisting the rail vehicle wheel pair from high to low: and (3) reversely operating the operation process of hoisting the rail vehicle wheel pair from the low position to the high position.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. The utility model provides a can lift by crane supplementary prosthetic lifting machine of rail vehicle wheel pair which characterized in that: the device comprises a bottom plate (1), a supporting vertical frame (2) arranged on the bottom plate (1), a bearing hanging plate (3) with one end hinged to the top of the supporting vertical frame (2), and a grabbing mechanism and an auxiliary baffle plate connecting mechanism which are correspondingly and slidably mounted on the bearing hanging plate (3), wherein an actuating mechanism for actuating the grabbing mechanism and the auxiliary baffle plate connecting mechanism to synchronously move is arranged at the bottom of the bearing hanging plate (3), supporting guide rail assemblies matched with a wheel tread and a wheel rim of a rail vehicle are symmetrically arranged on two sides of the bearing hanging plate (3), and an angle fine-adjusting mechanism for finely adjusting the inclination angle of the bearing hanging plate (3) is arranged on the bottom plate (1);
the grabbing mechanism comprises grabbing base plates (4) symmetrically distributed on two side edges of the bearing hanging plate (3), clamping claws (5) symmetrically and slidably mounted on the grabbing base plates (4) correspondingly, and double-head hydraulic cylinders (6) correspondingly arranged on the grabbing base plates (4) and connected with the clamping claws (5), the grabbing base plates (4) symmetrically distributed are connected through connecting arms (7), and the connecting arms (7) are slidably mounted on the bearing hanging plate (3) through first connecting rods (71) and connected with the driving mechanism;
the driving mechanism comprises a driving screw rod (8) arranged at the bottom of the bearing hanging plate (3) and a driving motor (9) coaxially connected with the driving screw rod (8), the first connecting rod (71) is correspondingly connected to the driving screw rod (8), and the driving screw rod (8) is connected with the auxiliary baffle plate connecting mechanism.
2. The crane capable of lifting rail vehicle wheel sets for auxiliary repair according to claim 1, wherein: the auxiliary blocking and connecting plate mechanism comprises an auxiliary blocking plate (10) which is arranged in the bearing hanging plate (3) in a sliding mode through a hinged sliding seat (11) and an auxiliary motor (12) which is arranged in the hinged sliding seat (11) and connected with the auxiliary blocking plate (10), and the hinged sliding seat (11) is connected with an order screw rod (8) through a second connecting rod (111).
3. The crane capable of lifting rail vehicle wheel sets for auxiliary repair according to claim 1, wherein: the supporting guide rail assembly comprises a tread and a rim guide rail (19) which are symmetrically arranged at the lower parts of the two sides of the bearing hanging plate (3), and an arc-shaped connecting guide rail (20) arranged at the lower end part of the tread and the rim guide rail (19).
4. The crane capable of lifting rail vehicle wheel sets for auxiliary repair according to claim 1, wherein: the angle fine-tuning mechanism comprises an adjusting seat barrel (13) arranged on the bottom plate (1), an adjusting screw rod (14) and a lifting thread sleeve (16) which are arranged in the adjusting seat barrel (13) and are in thread fit with each other, and a hinged seat head (17) arranged at the top of the lifting thread sleeve (16), wherein the adjusting screw rod (14) is connected with an adjusting motor (15), the top of the lifting thread sleeve (16) extends out of the adjusting seat barrel (13), and the hinged seat head (17) is hinged with an adjusting slide block (18) which is slidably mounted at the bottom of the bearing hanging plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010980015.4A CN112209309B (en) | 2020-09-17 | 2020-09-17 | Can lift by crane supplementary prosthetic lifting device of rail vehicle wheel pair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010980015.4A CN112209309B (en) | 2020-09-17 | 2020-09-17 | Can lift by crane supplementary prosthetic lifting device of rail vehicle wheel pair |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112209309A CN112209309A (en) | 2021-01-12 |
| CN112209309B true CN112209309B (en) | 2021-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010980015.4A Active CN112209309B (en) | 2020-09-17 | 2020-09-17 | Can lift by crane supplementary prosthetic lifting device of rail vehicle wheel pair |
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| Country | Link |
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| CN (1) | CN112209309B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113086028A (en) * | 2021-04-20 | 2021-07-09 | 南京蒲塘电器有限公司 | Motor lifting device for truck head |
| CN113479816B (en) * | 2021-07-23 | 2022-08-09 | 江苏南通六建建设集团有限公司 | Variable-angle movable steel structure oblique beam hoisting adjusting and supporting system and construction method |
| CN117486120A (en) * | 2023-12-25 | 2024-02-02 | 江苏蓝航仿真科技有限公司 | Lifting equipment for aircraft weather radome |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101143685A (en) * | 2007-09-11 | 2008-03-19 | 郑卫星 | Wire rope hanging lift lifting/lowering trolley |
| JP2016088709A (en) * | 2014-11-06 | 2016-05-23 | 株式会社日立ビルシステム | Lifting device and lifting method |
| CN106044632A (en) * | 2016-06-02 | 2016-10-26 | 国网山东省电力公司济南供电公司 | Auxiliary device for electrical equipment stair carrying |
| CN110027995A (en) * | 2019-04-18 | 2019-07-19 | 源泰伟业汽车零部件有限公司 | A kind of boom hoisting of engine reparation |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7900562B2 (en) * | 2007-10-12 | 2011-03-08 | Macton Corporation | Split rail trolley system |
-
2020
- 2020-09-17 CN CN202010980015.4A patent/CN112209309B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101143685A (en) * | 2007-09-11 | 2008-03-19 | 郑卫星 | Wire rope hanging lift lifting/lowering trolley |
| JP2016088709A (en) * | 2014-11-06 | 2016-05-23 | 株式会社日立ビルシステム | Lifting device and lifting method |
| CN106044632A (en) * | 2016-06-02 | 2016-10-26 | 国网山东省电力公司济南供电公司 | Auxiliary device for electrical equipment stair carrying |
| CN110027995A (en) * | 2019-04-18 | 2019-07-19 | 源泰伟业汽车零部件有限公司 | A kind of boom hoisting of engine reparation |
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| Publication number | Publication date |
|---|---|
| CN112209309A (en) | 2021-01-12 |
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