CN210393482U - Novel general bridge crane - Google Patents
Novel general bridge crane Download PDFInfo
- Publication number
- CN210393482U CN210393482U CN201921265984.0U CN201921265984U CN210393482U CN 210393482 U CN210393482 U CN 210393482U CN 201921265984 U CN201921265984 U CN 201921265984U CN 210393482 U CN210393482 U CN 210393482U
- Authority
- CN
- China
- Prior art keywords
- walking
- main beam
- cart
- sliding cylinder
- bridge crane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 65
- 238000013016 damping Methods 0.000 claims abstract description 32
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 14
- 239000003638 chemical reducing agent Substances 0.000 claims description 6
- 241000288140 Gruiformes Species 0.000 description 17
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 241000124872 Grus grus Species 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Images
Landscapes
- Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
Abstract
The utility model relates to a novel general bridge crane, which comprises a girder, end beams, a cart walking track support, a fixed plate, a reinforcing plate, a limiting mechanism, a damping mechanism and a cart walking mechanism, wherein the girder comprises a front girder and a rear girder, the upper surfaces of the front girder and the rear girder are both provided with cart walking tracks, the upper end of each cart walking track is provided with the cart walking mechanism, the lower ends of the left side and the right side of the front girder and the rear girder are both provided with a positioning block, the girder and the end beams are clamped through the positioning block and the positioning block, the outer sides of the girder and the end beams are also provided with the fixed plate, the upper end of the cart walking track support is provided with the cart walking tracks, cart walking wheels are correspondingly arranged on the cart walking tracks, connecting shafts are both arranged on both sides of the cart walking wheels, the connecting shafts are both rotatably connected with corresponding slide cylinder connecting blocks, the connecting shaft, the end beam is connected with the sliding cylinder connecting block through a damping mechanism, and the inner side wall of the end beam is further provided with a limiting mechanism.
Description
Technical Field
The utility model relates to a hoist equipment field especially relates to a novel general bridge crane.
Background
The bridge crane is mainly used for transporting heavy objects and completing common cranes with certain specific functions, and mainly comprises a cart running mechanism, a trolley running mechanism, a hoisting mechanism and electrical equipment, wherein two ends of a bridge frame run on an overhead rail above a factory building or an open cargo yard through running devices and longitudinally run along the rail, and a crane trolley runs on a bridge frame main beam transversely along the trolley rail; however, in the existing general bridge crane, in the process of cart running, trolley running or heavy object lifting, walking is difficult to control accurately, so that the lifted heavy object is difficult to accurately place, the trolley can move in place only by moving the walking trolley repeatedly, vibration of the crane is often caused in the process of moving repeatedly, the bolt connection part of the crane is damaged greatly, and serious safety accidents are caused; therefore, the novel universal bridge crane is urgently needed, the problem of vibration generated by repeated movement of the travelling trolley in the process of running a cart or running a trolley or lifting heavy objects of the universal bridge crane can be solved, and the stability and the safety of the universal bridge crane are ensured.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a novel general bridge crane can solve general bridge crane and move or play to rise the in-process of heavy object because of the vibrations problem that removes the production repeatedly at cart operation, dolly, guarantees general bridge crane's stability and security.
The utility model adopts the following technical proposal:
a novel universal bridge crane comprises a main beam, end beams, a cart walking track support, a fixing plate, a reinforcing plate, a limiting mechanism, a damping mechanism and a cart walking mechanism, wherein the main beam comprises a front main beam and a rear main beam, cart walking tracks are arranged on the upper surfaces of the front main beam and the rear main beam along the length direction of the main beam, the cart walking mechanism is arranged at the upper end of each cart walking track, two positioning blocks are fixedly arranged at the lower ends of the left side and the right side of the front main beam and the rear main beam, two positioning grooves corresponding to the two positioning blocks at the lower ends of the left side and the right side of the main beam are arranged at the upper ends of the end beams of the left side and the right side of the main beam, a plurality of first bolt through holes are respectively arranged at the upper ends of the left side and the right side of the main beam, the positioning blocks, the outer sides of the clamping parts of the main beams and the end beams are also provided with fixing plates, the fixing plates are respectively provided with a plurality of second bolt through holes corresponding to the first bolt through holes on the main beams and the end beams, the main beams and the end beams are fixedly connected through the fixing plates through fixing bolts, a cart walking track is laid at the upper end of the cart walking track support, cart walking wheels are correspondingly arranged on the cart walking track, connecting shafts are fixedly arranged on two sides of the cart walking wheels, the connecting shafts on two sides of the cart walking wheels are respectively rotatably connected with corresponding sliding cylinder connecting blocks, and the connecting shaft on one side penetrates through the corresponding sliding cylinder connecting shaft to be fixedly connected with a cart power mechanism; the end beam is connected with the sliding cylinder connecting block through the damping mechanism, the lower end of the end beam is connected with the upper end of the damping mechanism, and the lower end of the damping mechanism is fixedly connected with the upper end of the sliding cylinder connecting block; the limiting mechanism is arranged in the middle of the front main beam and the rear main beam, and the inner side wall of the end beam is also provided with the limiting mechanism.
The damping mechanism comprises a first elastic sliding cylinder and a circular groove, the circular groove is formed in the lower end of the end beam, the lower end of the first elastic sliding cylinder is fixedly connected with the upper end of the sliding cylinder connecting block, and the upper end of the first elastic sliding cylinder is in threaded connection with the circular groove.
The elastic sliding cylinder comprises a sliding cylinder, a sliding column, a flexible damping pad and a strong spring, the flexible damping pad is fixedly arranged at the bottom end inside the sliding cylinder, the strong spring is fixedly connected to the upper end of the flexible damping pad, the upper end of the strong spring is in contact with the bottom end of the sliding column, and the length compressed by the elastic sliding cylinder is smaller than the length of the top end of the wheel of the cart to the bottom end of the end beam.
The limiting mechanism comprises a spring group and a limiting plate, the left end of the spring group is fixedly connected with the inner side wall of the end beam, the right end of the spring group is fixedly connected with the left end of the limiting plate, and the limiting structure is symmetrically provided with two groups.
The inner side of the end beam is also provided with a reinforcing plate, the upper end of the reinforcing plate is connected with the lower end of the main beam through a bolt, the left end of the reinforcing plate is connected with the right end of the end beam through a bolt, and the reinforcing plate is further provided with a reinforcing rib.
And a ball bearing is also arranged in the sliding cylinder connecting block.
Dolly running gear including the walking dolly, a machine support, electric block, wire rope and lifting hook, the lower extreme of walking dolly be provided with dolly walking wheel, dolly walking wheel connection dolly power unit, dolly walking wheel sets up on the dolly walking track that corresponds, the upper surface of walking dolly still is provided with the frame walking track with dolly walking track vertically, it is provided with corresponding frame wheel to correspond on the frame walking track, frame wheel connection frame power unit, the frame wheel sets up in the bottom of frame, the fixed electric block that is provided with in upper end of frame, the upper end of frame is provided with the second elasticity slide cartridge, the upper end of second elasticity slide cartridge and electric block's lower extreme fixed connection, electric block is connected with the lifting hook through wire rope.
The trolley power mechanism and the rack power mechanism respectively comprise a driving motor, a speed reducer and a control system, and the driving motors respectively adopt stepping motors.
The front end and the rear end of the walking trolley are provided with limiting blocks.
The cart power mechanism comprises a driving motor, a speed reducer and a control system, wherein the driving motor adopts a stepping motor.
The utility model has the advantages that: the utility model discloses in the course of the work, electric block promotes the heavy object operation in-process, and girder length direction operation not only can be followed to dolly running gear, can also follow the operation that the girder vertical direction carries out the small range, thereby accurate one step transports the heavy object in place, has reduced the production of vibrations, stopper and stop gear further weaken because of operating personnel bad operation make electric block and walking dolly take place the vibrations that the striking produced, the setting of first elasticity slide cartridge and second elasticity slide cartridge, further weaken the utility model discloses at the vibrations that the in-process of operation produced, reduced the loss to the hoist, prolonged life, guaranteed general bridge crane's stability and security.
Drawings
Fig. 1 is a front view of the present invention;
fig. 2 is a top view of the present invention;
FIG. 3 is a right enlarged view of part A of the present invention;
fig. 4 is an enlarged view of the structure of the elastic sliding cylinder of the present invention.
Detailed Description
The invention is described in detail below with reference to the following figures and examples:
as shown in fig. 1 to 4, a novel universal bridge crane comprises a main beam 1, end beams 2, a cart walking rail support 3, a fixing plate 4, a reinforcing plate 5, a limiting mechanism, a damping mechanism and a trolley walking mechanism, wherein the main beam 1 comprises a front main beam and a rear main beam, trolley walking rails 6 are arranged on the upper surfaces of the front main beam and the rear main beam along the length direction of the main beam 1, the upper ends of the trolley walking rails 6 are provided with the trolley walking mechanism, the trolley walking rails 6 are used for providing rails for trolley walking, two positioning blocks 7 are fixedly arranged at the lower ends of the left side and the right side of the front main beam and the rear main beam, two positioning grooves 8 corresponding to the two positioning blocks 7 at the lower ends of the left side and the right side of the main beam 1 are arranged at the upper ends of the left side and the right side of the main beam 1, the lower ends of the left side and the right side of the main beam 1 are connected with the, the upper ends of the left side and the right side of the front main beam and the rear main beam are respectively provided with a plurality of first bolt through holes 9, the outer side of the end beam 2 is provided with a plurality of first bolt through holes 9, the outer sides of the joints of the main beam 1 and the end beam 2 are also provided with an L-shaped fixing plate 4, the fixing plates 4 are respectively provided with a plurality of second bolt through holes 10 corresponding to the first bolt through holes 9 on the main beam 1 and the end beam 2, the main beam 1 and the end beam 2 are fixedly connected through the fixing bolts 11 by the fixing plates 4, the fixing plates 4 are effectively arranged to fix the end beam 2 and the main beam 1, so that the connection between the end beam 2 and the main beam 1 is firmer, the fixing plates 4, the end beam 2 and the main beam 1 are fixed through the fixing bolts 11 and are convenient to detach, the cart walking track 13 is arranged on the cart walking track support 3, the cart walking track support 3 is a main bearing structure and provides a, the cart traveling track 13 is correspondingly provided with cart traveling wheels 14, so that the cart traveling wheels 14 can conveniently run together with the cart traveling track 13, connecting shafts 16 are fixedly arranged on two sides of the cart traveling wheels 14, the connecting shafts 16 on two sides of the cart traveling wheels 14 are rotatably connected with corresponding sliding barrel connecting blocks 17, the connecting shaft 16 on one side penetrates through the corresponding sliding barrel connecting blocks 17 to be fixedly connected with a cart power mechanism, and the cart traveling wheels 14 are driven to rotate through the connecting shafts 16 while the cart power mechanism is electrified to rotate, so that the crane can conveniently travel; the end beam 2 is connected with the sliding cylinder connecting block 17 through the damping mechanism, the lower end of the end beam 2 is connected with the upper end of the damping mechanism, the lower end of the damping mechanism is fixedly connected with the upper end of the sliding cylinder connecting block 17, and the damping mechanism is arranged so as to play an effective damping effect and reduce the loss of the damping mechanism; the inside wall of end beam still is equipped with stop gear, and stop gear sets up in front girder and back girder middle part, and stop gear and end beam 2's inside wall fixed connection have avoided making dolly running gear and end beam 2 take place the striking because of operating personnel operates badly.
The damping mechanism comprises a first elastic sliding cylinder 18 and a circular groove 12, the circular groove 12 is arranged at the lower end of the end beam 2, the lower end of the first elastic sliding cylinder 18 is fixedly connected with the upper end of a sliding cylinder connecting block 17, and the upper end of the first elastic sliding cylinder 18 is in threaded connection with the circular groove 12, so that the damping mechanism is convenient to mount and dismount.
The elastic sliding barrel comprises a sliding barrel 23, a sliding column 24, a flexible damping pad 25 and a strong spring 26, the flexible damping pad 25 is fixedly arranged at the bottom end inside the sliding barrel 23, the strong spring 26 is fixedly connected to the upper end of the flexible damping pad 25, the upper end of the strong spring 26 is contacted with the bottom end of the sliding column 24, the sliding barrel 23, the sliding column 24 and the flexible damping pad 25 are used in a manner of surrounding the strong spring 26, vibration generated in the working process of the utility model is effectively eliminated, the service life of the utility model is greatly prolonged, when the elastic sliding barrel is compressed to a limit position, the cart walking wheels 14 are still in free rotation, and the compressible length of the strong spring 26 is smaller than the length from the top end of the cart walking wheels 14 to the bottom end of the end beam 2; the flexible damping pad 25 may be made of a flexible material such as rubber.
The limiting mechanism comprises a spring set 19 and a limiting plate 20, the left end of the spring set 19 is fixedly connected with the inner side wall of the end beam 2, the right end of the spring set 19 is fixedly connected with the left end of the limiting plate 20, the limiting structures are symmetrically arranged in two groups, the trolley travelling mechanism is prevented from being collided with the end beam 2 due to poor operation of an operator, and meanwhile, the trolley travelling mechanism is prevented from being collided with the end beam 2 to cause further vibration; the inboard of end beam 2 still is provided with gusset plate 5, and the lower extreme bolted connection of the upper end of gusset plate 5 and girder 1, the left end of gusset plate 5 and the right-hand member bolted connection of end beam 2 are effectual fixed girder 1 and end beam 2, still are provided with strengthening rib 21 on the gusset plate 5, and further fix girder 1 and end beam 2.
The inside of the sliding cylinder connecting block 17 is also provided with a ball bearing 22, which is convenient for the connecting shaft 16 and the sliding cylinder connecting block 17 to realize the rotary connection.
The trolley travelling mechanism comprises a travelling trolley 27, a frame 29, an electric hoist 30, a steel wire rope 31 and a lifting hook 32, trolley travelling wheels 28 are arranged at the lower end of the travelling trolley 27, the trolley travelling wheels 28 are connected with a trolley power mechanism, the trolley travelling wheels 28 are arranged on corresponding trolley travelling rails 6, the trolley travelling wheels 28 are connected with the trolley power mechanism, a frame travelling rail 33 perpendicular to the trolley travelling rails 6 is further arranged on the upper surface of the travelling trolley 27, corresponding frame travelling wheels 34 are correspondingly arranged on the frame travelling rails 33, the frame travelling wheels 34 are connected with the frame power mechanism, the frame travelling wheels 34 are arranged at the bottom end of the frame 29, the electric hoist 30 is fixedly arranged at the upper end of the frame 29, a second elastic sliding barrel 35 is arranged at the upper end of the frame 29, and the upper end of the second elastic sliding barrel 35 is fixedly connected with the lower end of the electric hoist, the electric hoist 30 is connected with a lifting hook 32 through a steel wire rope 31; the electric hoist 30 lifts a heavy object through a lifting hook 32 connected with a steel wire rope 31, a trolley power mechanism provides power to drive a trolley travelling wheel 28, and the trolley travelling wheel 28 drives a travelling trolley 27 to enable the travelling trolley 27 to run along a trolley travelling rail 6; the frame power mechanism provides power to drive the frame traveling wheels 34, and the frame traveling wheels 34 drive the frame 29 and the electric block 30, so that the frame 29 and the electric block 30 move along the frame traveling rails 33.
The trolley power mechanism and the rack power mechanism respectively comprise a driving motor, a speed reducer and a control system, and the driving motors respectively adopt stepping motors.
Both ends all are provided with stopper 15 around the walking dolly 27, carry on spacingly to electric block 30, prevent the striking.
The cart power mechanism comprises a driving motor, a speed reducer and a control system, wherein the driving motor adopts a stepping motor.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (10)
1. A novel general bridge crane is characterized in that: the trolley comprises a main beam, end beams, a cart walking track support, a fixing plate, a reinforcing plate, a limiting mechanism, a damping mechanism and a trolley walking mechanism, wherein the main beam comprises a front main beam and a rear main beam, trolley walking tracks are arranged on the upper surfaces of the front main beam and the rear main beam along the length direction of the main beam, the trolley walking mechanism is arranged at the upper end of each trolley walking track, two positioning blocks are fixedly arranged at the lower ends of the left side and the right side of the front main beam and the rear main beam, two positioning grooves corresponding to the two positioning blocks at the lower ends of the left side and the right side of the main beam are arranged at the upper ends of the left side and the right side of the main beam, the lower ends of the left side and the right side of the main beam are clamped with the upper ends of the left end beam and the right end beam through the positioning blocks and the positioning grooves, a plurality, the fixed plates are respectively provided with a plurality of second bolt through holes corresponding to the first bolt through holes in the main beams and the end beams, the main beams and the end beams are fixedly connected through the fixed plates through fixed bolts, cart walking tracks are laid at the upper ends of the cart walking track supports, cart walking wheels are correspondingly arranged on the cart walking tracks, connecting shafts are fixedly arranged on two sides of the cart walking wheels, the connecting shafts on two sides of the cart walking wheels are rotatably connected with corresponding sliding cylinder connecting blocks, and the connecting shaft on one side penetrates through the corresponding sliding cylinder connecting blocks to be fixedly connected with a cart power mechanism; the end beam is connected with the sliding cylinder connecting block through the damping mechanism, the lower end of the end beam is connected with the upper end of the damping mechanism, and the lower end of the damping mechanism is fixedly connected with the upper end of the sliding cylinder connecting block; the limiting mechanism is arranged in the middle of the front main beam and the rear main beam, and the inner side wall of the end beam is also provided with the limiting mechanism.
2. A new universal bridge crane according to claim 1, characterized in that: the damping mechanism comprises a first elastic sliding cylinder and a circular groove, the circular groove is formed in the lower end of the end beam, the lower end of the first elastic sliding cylinder is fixedly connected with the upper end of the sliding cylinder connecting block, and the upper end of the first elastic sliding cylinder is in threaded connection with the circular groove.
3. A new universal bridge crane according to claim 2, characterized in that: the elastic sliding cylinder comprises a sliding cylinder, a sliding column, a flexible damping pad and a strong spring, the flexible damping pad is fixedly arranged at the bottom end inside the sliding cylinder, the strong spring is fixedly connected to the upper end of the flexible damping pad, the upper end of the strong spring is in contact with the bottom end of the sliding column, and the length compressed by the elastic sliding cylinder is smaller than the length of the top end of the wheel of the cart to the bottom end of the end beam.
4. A new universal bridge crane according to claim 1, characterized in that: the limiting mechanism comprises a spring group and a limiting plate, the left end of the spring group is fixedly connected with the inner side wall of the end beam, the right end of the spring group is fixedly connected with the left end of the limiting plate, and the limiting mechanism is symmetrically provided with two groups.
5. A new universal bridge crane according to claim 1, characterized in that: the inner side of the end beam is also provided with a reinforcing plate, the upper end of the reinforcing plate is connected with the lower end of the main beam through a bolt, the left end of the reinforcing plate is connected with the right end of the end beam through a bolt, and the reinforcing plate is further provided with a reinforcing rib.
6. A new universal bridge crane according to claim 1, characterized in that: and a ball bearing is also arranged in the sliding cylinder connecting block.
7. A new universal bridge crane according to claim 1, characterized in that: dolly running gear including the walking dolly, a machine support, electric block, wire rope and lifting hook, the lower extreme of walking dolly be provided with dolly walking wheel, dolly walking wheel connection dolly power unit, dolly walking wheel sets up on the dolly walking track that corresponds, the upper surface of walking dolly still is provided with the frame walking track with dolly walking track vertically, it is provided with corresponding frame wheel to correspond on the frame walking track, frame wheel connection frame power unit, the frame wheel sets up in the bottom of frame, the fixed electric block that is provided with in upper end of frame, the upper end of frame is provided with the second elasticity slide cartridge, the upper end of second elasticity slide cartridge and electric block's lower extreme fixed connection, electric block is connected with the lifting hook through wire rope.
8. The new universal bridge crane according to claim 7, wherein: the trolley power mechanism and the rack power mechanism respectively comprise a driving motor, a speed reducer and a control system, and the driving motors respectively adopt stepping motors.
9. The new universal bridge crane according to claim 7, wherein: the front end and the rear end of the walking trolley are provided with limiting blocks.
10. A new universal bridge crane according to claim 1, characterized in that: the cart power mechanism comprises a driving motor, a speed reducer and a control system, wherein the driving motor adopts a stepping motor.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201921265984.0U CN210393482U (en) | 2019-08-07 | 2019-08-07 | Novel general bridge crane |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201921265984.0U CN210393482U (en) | 2019-08-07 | 2019-08-07 | Novel general bridge crane |
Publications (1)
Publication Number | Publication Date |
---|---|
CN210393482U true CN210393482U (en) | 2020-04-24 |
Family
ID=70358536
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201921265984.0U Expired - Fee Related CN210393482U (en) | 2019-08-07 | 2019-08-07 | Novel general bridge crane |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN210393482U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111439684A (en) * | 2020-04-27 | 2020-07-24 | 长沙华恒机器人系统有限公司 | Large-span heavy-load truss manipulator |
CN112978573A (en) * | 2021-04-30 | 2021-06-18 | 新乡学院 | Bridge crane damping device |
-
2019
- 2019-08-07 CN CN201921265984.0U patent/CN210393482U/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111439684A (en) * | 2020-04-27 | 2020-07-24 | 长沙华恒机器人系统有限公司 | Large-span heavy-load truss manipulator |
CN112978573A (en) * | 2021-04-30 | 2021-06-18 | 新乡学院 | Bridge crane damping device |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN210393482U (en) | Novel general bridge crane | |
CN110655015B (en) | Trackless self-propelled platform car for subway tunnel maintenance | |
CN111224346B (en) | High tension transmission line inspection robot with multiple motion modes | |
CN102912726A (en) | Combined type multifunctional bridge inspection trolley | |
CN211034929U (en) | Double-beam bridge crane | |
CN215801077U (en) | Pulley type cable saddle device | |
CN207877114U (en) | A kind of crane winch trolley | |
CN117071340A (en) | Switch rail welding operation vehicle and operation method thereof | |
CN111648173A (en) | Track panel laying machine | |
CN116119536A (en) | Tunnel hoisting equipment | |
CN214141300U (en) | Special double-beam bridge crane for metallurgy | |
CN110843825B (en) | Axle suspension box rescue vehicle | |
CN204778394U (en) | Crane cart running gear | |
CN211521390U (en) | Bridge sidewalk accessory facility hoisting equipment | |
CN212740481U (en) | Tire gantry crane | |
CN113979298A (en) | Tunnel non-motor way slot cover plate installation device | |
CN210286534U (en) | Energy-saving electric hoist gantry crane | |
JP3862634B2 (en) | Overhead traveling crane | |
CN113814641A (en) | Special flange and tower section assembling machine for wind power tower cylinder manufacturing and method for applying special flange and tower section assembling machine | |
CN218841504U (en) | Electricity exchanging crown block electricity and electricity exchanging system | |
CN105905804A (en) | Hybrid differential driving mechanism for controlling lifting of crane and transverse moving of trolley | |
CN201598106U (en) | Novel upper trolley lifting hook traversing mechanism of shipbuilding gantry crane | |
CN212953965U (en) | Upper shaft crown block for processing metal section | |
CN206544869U (en) | A kind of transport driving of automatic oscilaltion | |
CN217437571U (en) | Crane fixing support |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200424 |
|
CF01 | Termination of patent right due to non-payment of annual fee |