CN218911579U - Connecting device and working machine - Google Patents
Connecting device and working machine Download PDFInfo
- Publication number
- CN218911579U CN218911579U CN202223263778.0U CN202223263778U CN218911579U CN 218911579 U CN218911579 U CN 218911579U CN 202223263778 U CN202223263778 U CN 202223263778U CN 218911579 U CN218911579 U CN 218911579U
- Authority
- CN
- China
- Prior art keywords
- connection
- connecting seat
- slewing bearing
- seat
- utility
- 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.)
- Active
Links
Images
Landscapes
- Jib Cranes (AREA)
Abstract
The utility model relates to the technical field of working machines, and provides a connecting device and a working machine, wherein the connecting device is detachably arranged below a slewing bearing; the first connecting seat is connected with the lower carriage of the working machine; the second connecting seat is detachably connected with the first connecting seat, the outer edge of the second connecting seat is provided with a convex part, the convex part extends along the radial outer end of the second connecting seat, and the convex part is connected with the outer ring of the slewing bearing. The detachable connection between the slewing bearing and the lower vehicle can be realized through the detachable connection between the second connecting seat and the first connecting seat, and after the first connecting seat and the second connecting seat are separated, the size of the first connecting seat can meet the condition of the upper road running of the working machine; the size of the slewing bearing can be increased without increasing the size of the first connecting seat, so that the pitch circle diameter of the upper connecting bolt is increased, and the whole capability of the slewing bearing is improved.
Description
Technical Field
The present disclosure relates to working machines, and particularly to a connecting device and a working machine.
Background
In a separating mechanism of a slewing bearing of a large-tonnage working machine, such as a slewing bearing of a large-tonnage crane, in particular a slewing bearing of an externally meshed slewing reducer, an inner ring of the slewing bearing is connected with a superstructure of the working machine through an inner side bolt, an outer ring of the slewing bearing is detachably connected with a lower connecting seat through a pin shaft, and the lower connecting seat is connected with a lower carriage of the working machine through a bolt; the separation of the upper structure and the lower vehicle is realized through the disassembly pin shaft, and the upper structure realizes rotation through the relative rotation of the inner ring and the outer ring of the slewing bearing.
Because the inner side bolts for connecting the slewing bearing and the upper structure are positioned at the inner side of the slewing bearing, the reference circle diameter of the installation position of the inner side bolts is smaller than that of the installation position of the bolts at the lower connecting seat, and the stress of the inner side bolts is severe, so that the bearing capacity of the slewing bearing is limited;
in order to improve the bearing capacity of the slewing bearing, the pitch circle diameter of the upper connecting bolt needs to be increased, the pitch circles of the upper connecting bolt and the lower connecting bolt of the slewing bearing need to be staggered, and the pitch circle diameter of the upper connecting bolt needs to be increased, but under the limitation of road transportation conditions, the pitch circle diameter of the existing lower connecting bolt cannot be increased, so that the integral structure of the slewing bearing cannot be increased, and the integral bearing capacity of the slewing bearing cannot be improved.
Disclosure of Invention
The utility model provides a connecting device and a working machine, which are used for solving the defect that the integral structure of a slewing bearing cannot be enlarged due to the limitation of transportation width in the prior art, so that the integral bearing capacity of the slewing bearing cannot be improved.
The utility model provides a connecting device which is detachably arranged below a slewing bearing, comprising:
the first connecting seat is fixedly connected with the lower vehicle of the working machine;
the second connecting seat is detachably connected with the first connecting seat, a convex part is arranged on the outer edge of the second connecting seat, the convex part extends along the radial outer end of the second connecting seat, and the convex part is connected with the outer ring of the slewing bearing.
According to the connecting device provided by the utility model, the outer ring of the slewing bearing is detachably connected with the convex part through the first fixing piece.
According to the connecting device provided by the utility model, the first connecting seat and the second connecting seat are detachably connected through the second fixing piece.
According to the connecting device provided by the utility model, one of the first connecting seat and the second connecting seat is provided with the connecting groove, and the other is provided with the connecting part, and the connecting part can be embedded into the connecting groove.
According to the connecting device provided by the utility model, the second fixing piece can penetrate through the groove wall of the connecting groove to be detachably connected with the connecting part.
According to the connecting device provided by the utility model, the outer ring of the slewing bearing is provided with the first connecting hole, the convex part is provided with the second connecting hole, the first connecting hole and the second connecting hole are coaxially arranged and are matched with the first fixing piece, and the first fixing piece can penetrate through the second connecting hole to extend into the first connecting hole so as to connect the convex part with the outer ring of the slewing bearing.
According to the connecting device provided by the utility model, the convex part is of an annular structure, and the convex part and the second connecting seat are coaxially arranged.
According to the connecting device provided by the utility model, the connecting groove is an annular groove, and the annular groove is coaxially arranged with the first connecting seat or the second connecting seat; the connecting part is of an annular structure, and the connecting part and the first connecting seat or the second connecting seat are coaxially arranged.
According to the connecting device provided by the utility model, the connecting part and the connecting groove are axially butted, and the second fixing piece can radially connect the connecting part and the connecting groove.
The present utility model also provides a work machine comprising:
loading;
the lower vehicle is provided with a fixed seat;
the inner ring of the slewing bearing is connected with the upper trolley;
the connecting device according to any one of the preceding claims, for connecting the outer ring of the slewing bearing and the fixing seat.
According to the connecting device and the working machine, the outer ring of the slewing bearing is detachably connected with the first connecting seat through the second connecting seat, so that the slewing bearing can be detachably connected with a lower vehicle, and the slewing bearing can be conveniently disassembled and assembled; after the first connecting seat and the second connecting seat are separated, the size of the first connecting seat can meet the condition of the working machine for traveling on the road; the convex parts are arranged on the second connecting seat, so that the outer edge of the second connecting seat is enlarged, the installation position of the connecting bolt between the second connecting seat and the slewing bearing can move outwards along the radial direction, and when the pitch circle diameter of the upper connecting bolt between the slewing bearing and the upper car is enlarged, the pitch circles of the upper connecting bolt and the lower connecting bolt can still be staggered, and the integral bearing capacity of the slewing bearing can be improved by enlarging the pitch circle diameter of the upper connecting bolt between the upper car and the slewing bearing; and increasing the overall size of the slewing bearing can further increase the bearing capacity of the slewing bearing.
Drawings
In order to more clearly illustrate the utility model or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a perspective view of a connection device provided by the utility model for connecting an upper car to a lower car;
FIG. 2 is a front view of the connection device of the present utility model for connecting an upper vehicle to a lower vehicle;
FIG. 3 is one of the side views of the connecting device of the present utility model connecting an upper cart to a lower cart;
FIG. 4 is a second side view of the connecting device of the present utility model connecting an upper vehicle to a lower vehicle;
FIG. 5 is a perspective view of the connecting device (with the second mount hidden) provided by the present utility model;
FIG. 6 is a cross-sectional view of the connection device (with the second mount hidden) provided by the present utility model;
FIG. 7 is a perspective view of the connecting device (concealing the first, second and third securing members) provided by the present utility model;
FIG. 8 is a cross-sectional view of the connection device provided by the present utility model (concealing the first, second and third securing members);
FIG. 9 is a front view of an outer race of the slewing bearing provided by the present utility model;
FIG. 10 is a top view of an outer race of the slewing bearing provided by the present utility model;
FIG. 11 is a cross-sectional view of an outer race of the slewing bearing provided by the present utility model;
fig. 12 is a front view of a second connection base provided by the present utility model;
FIG. 13 is a top view of a second connector base provided by the present utility model;
FIG. 14 is a cross-sectional view of a second connection mount provided by the present utility model;
fig. 15 is a front view of a first connector provided by the present utility model;
FIG. 16 is a top view of a first connector base provided by the present utility model;
fig. 17 is a cross-sectional view of a first connection socket provided by the present utility model.
Reference numerals:
1. loading; 2. a fixing seat; 3. a connecting device;
31. a slewing bearing; 32. a first connection base; 33. a second connecting seat;
34. a first fixing member; 35. a third fixing member; 311. an outer ring;
312. a first connection hole; 321. a connecting groove; 322. a fixing hole;
323. a fourth connection hole; 331. a convex portion; 332. a connection part;
333. a second connection hole; 334. a third connection hole; 335. a boss.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The connecting device and the work machine of the present utility model are described below with reference to fig. 1 to 17.
As shown in fig. 5-17, the connecting device provided by the utility model comprises a first connecting seat 32 and a second connecting seat 33.
Wherein the connection device is detachably mounted under the pivoting support 31, and the inner ring of the pivoting support 31 may be connected with the upper carriage 1 of the working machine, the first connection seat 32 may be fixedly connected with the lower carriage of the working machine, the second connection seat 33 may be detachably connected with the first connection seat 32, and the outer edge of the second connection seat 33 may be provided with a protrusion 331, and the protrusion 331 may be connected with the outer ring 311 of the pivoting support 31. In this way, a relative pivoting of the work machine upper carriage 1 and lower carriage can be achieved by the pivoting support 31, and a detachable connection of the pivoting support 31 and lower carriage can be achieved by a detachable connection of the second connection seat 33 and the first connection seat 32.
Here, the protrusion 331 may extend along the radially outer end of the second coupling seat 33. In this way, the maximum diameter of the second connecting seat 33 can be increased, so that the diameter of the outer ring 311 of the slewing bearing 31 can be further increased, and then the pitch circle diameter of the lower connecting bolt can be increased, and the size of the inner ring of the slewing bearing 31 can be correspondingly increased due to the structural limiting factor of the slewing bearing 31, so that the pitch circle diameter of the upper connecting bolt can be set larger, and the bearing capacity of the slewing bearing 31 is improved.
The arrangement is that the upper carriage of the working machine is connected with the inner ring of the slewing bearing 31, the lower carriage of the working machine is detachably provided with the first connecting seat 32 and the second connecting seat 33 which is detachably connected with the first connecting seat 32, and the outer ring 311 of the slewing bearing 31 is detachably connected with the convex part 331 on the second connecting seat 33, so that the detachable connection between the slewing bearing 31 and the lower carriage can be realized; after the first connecting seat 32 and the second connecting seat 33 are separated, the size of the first connecting seat 32 can meet the condition of the working machine for traveling on the road, and the convex part 331 is arranged on the second connecting seat 33, so that the outer edge of the second connecting seat 33 is enlarged to enable the installation position of the connecting bolt between the second connecting seat 33 and the slewing bearing 31 to move outwards along the radial direction, and when the pitch circle diameter of the upper connecting bolt between the slewing bearing 31 and the upper car 1 is enlarged, the pitch circles of the upper connecting bolt and the lower connecting bolt can still be staggered, and the whole bearing capacity of the slewing bearing 31 can be improved by enlarging the pitch circle diameter of the upper connecting bolt between the upper car 1 and the slewing bearing 31; and increasing the overall size of the slewing bearing 31 can further increase the load-carrying capacity of the slewing bearing 31.
In an alternative embodiment, the connection means may comprise a second connection seat 33 provided with a plurality of protrusions 331 of different outer diameters, i.e. the connection means may comprise a plurality of second connection seats 33 of different outer diameters. In this way, the second connecting seat 33 with different outer diameters can be selected according to the requirement to adapt to the slewing bearing 31 with different diameters, so as to realize diameter variation, thereby improving the overall capacity of the slewing bearing 31.
In an alternative embodiment of the present utility model, the outer ring 311 and the boss 331 of the slewing bearing 31 can be detachably connected by the first fixing member 34. In this way, when the pivoting support 31 or the second connection seat 33 is damaged, replacement is facilitated.
In an alternative embodiment of the present utility model, as shown in fig. 8, the outer ring 311 of the slewing bearing 31 may be provided with a first connection hole 312, the protrusion 331 may be provided with a second connection hole 333, and the second connection hole 333 and the first connection hole 312 may be coaxially disposed, and both the second connection hole 333 and the first connection hole 312 may be adapted to the first fixing member 34, and the first fixing member 34 may extend into the first connection hole 312 through the second connection hole 333 to connect the protrusion 331 and the outer ring 311 of the slewing bearing 31.
In an alternative embodiment, the first fixing member 34 may be a bolt, the first connection hole 312 may be a screw hole, the bolt may be screw-coupled with the first connection hole 312, and the head diameter of the bolt may be larger than the aperture of the second connection hole 333.
The first fixing member 34 may be a pin shaft, and the pin shaft may be adapted to the second connection hole 333 and the first connection hole 312 to connect the second connection hole 333 and the first connection hole 312.
In the first alternative embodiment of the present utility model, the protrusion 331 may have a ring-shaped structure, and the protrusion 331 and the second connection seat 33 are coaxially disposed, that is, the protrusion 331 is disposed around the outer edge of the second connection seat 33. In this way, the contact area between the protruding portion 331 and the outer ring 311 of the slewing bearing 31 can be increased, so that the contact area between the second connecting seat 33 and the outer ring 311 of the slewing bearing 31 can be increased, so as to improve the connection stability between the second connecting seat 33 and the outer ring 311 of the slewing bearing 31, and further improve the bearing capacity of the slewing bearing 31.
Here, the outer ring 311 of the slewing bearing 31 may be provided with a plurality of first connection holes 312, the plurality of first connection holes 312 may be uniformly disposed at the bottom of the outer ring 311, the protrusion 331 may be provided with a plurality of second connection holes 333, the plurality of second connection holes 333 may be uniformly disposed on the protrusion 331, and the plurality of first connection holes 312 may be in one-to-one correspondence with the plurality of second connection holes 333.
In the second alternative embodiment of the present utility model, the outer ring 311 of the second connecting seat 33 is provided with a plurality of protruding portions 331, and the plurality of protruding portions 331 are uniformly distributed along the circumferential direction of the second connecting seat 33, and the plurality of protruding portions 331 are connected with the outer ring 311 of the slewing bearing 31, so that not only can the connection between the getting-off and the slewing bearing 31 be realized, but also the manufacturing cost of the connecting device 3 can be reduced.
In an alternative embodiment of the present utility model, the protruding portion 331 and the second connecting seat 33 may be integrally formed, i.e. the protruding portion 331 and the second connecting seat 33 may be integrally cast. In this way, the connection stability of the convex portion 331 and the second connecting seat 33 is improved, and the connection stability of the second connecting seat 33 and the slewing bearing 31 is improved.
In an alternative embodiment of the present utility model, the first connection socket 32 and the second connection socket 33 may be detachably connected by a second fixing member so as to facilitate the disassembly and assembly of the first connection socket 32 and the second connection socket 33.
In an alternative embodiment, one of the first and second connection seats 32 and 33 may be provided with a connection groove 321, and the other may be provided with a connection portion 332, the connection portion 332 being capable of being embedded in the connection groove 321. In this way, the connection stability of the first connection socket 32 and the second connection socket 33 can be further improved.
In an alternative embodiment, the second fixing member can be detachably coupled with the coupling portion 332 through the groove wall of the coupling groove 321. In this way, the connection stability of the connection portion 332 with the connection groove 321 can be improved.
In a first alternative embodiment, the connection groove 321 may be an annular groove, and the annular groove may be disposed coaxially with the first connection seat 32 or the second connection seat 33; the connection portion 332 may have a ring structure, and the connection portion 332 may be disposed coaxially with the first connection seat 32 or the second connection seat 33. In this way, the contact area of the connecting portion 332 and the connecting groove 321 can be increased, thereby further increasing the connecting area of the second connecting seat 33 and the first connecting seat 32, so that the connection stability of the first connecting seat 32 and the second connecting seat 33 can be improved.
In a second alternative embodiment, one of the first connection seat 32 and the second connection seat 33 may be provided with a plurality of connection grooves 321, the other one may be provided with a plurality of connection portions 332, and the plurality of connection portions 332 and the plurality of connection grooves 321 may be uniformly distributed along the circumferential directions of the first connection seat 32 and the second connection seat 33, respectively, and the plurality of connection portions 332 and the plurality of connection grooves 321 may be in one-to-one correspondence, so that the plurality of connection portions 332 may be respectively embedded into the plurality of connection grooves 321. In this way, the connection between the first connecting seat 32 and the second connecting seat 33 can be realized, and the weight and the manufacturing cost of the first connecting seat 32 and the second connecting seat 33 can be reduced.
In alternative embodiments, the connecting portion 332 and the connecting slot 321 may interface axially. In this way, the first and second connection seats 32 and 33 are easily connected or separated.
And, the second fixing member can radially connect the connection portion 332 and the connection groove 321, that is, the second fixing member can radially connect the connection portion 332 and the groove wall of the connection groove 321, so as to improve the connection stability of the first connection seat 32 and the second connection seat 33.
In an alternative embodiment, the first connection socket 32 may be provided with a connection groove 321, the second connection socket 33 may be provided with a connection portion 332, and a notch of the connection groove 321 may be provided toward the second connection socket 33. In this way, the connection portion 332 is easily inserted into the connection groove 321, and the connection or disconnection of the first and second connection seats 32 and 33 is easily achieved.
In the first embodiment, the connection groove 321 may be disposed coaxially with the first connection socket 32, and the connection portion 332 may be disposed coaxially with the second connection socket 33.
In the second embodiment, the plurality of connecting grooves 321 may be uniformly distributed along the circumferential direction of the first connecting seat 32, and the plurality of connecting portions 332 may be uniformly distributed along the circumferential direction of the second connecting seat 33.
Here, the connection portion 332 may be disposed at the bottom of the second connection seat 33.
In an alternative embodiment, the second fixing member may be a pin, and the connection portion 332 may be provided with a third connection hole 334, the groove wall of the connection groove 321 may be provided with a fourth connection hole 323, the third connection hole 334 may be butted with the fourth connection hole 323, and the pin may be connected with the third connection hole 334 through the fourth connection hole 323.
Here, the axes of the third and fourth connection holes 334 and 323 are perpendicular to the extending directions of the connection groove 321 and the connection portion 332.
In an alternative embodiment, the bottom of the second connecting seat 33 may be provided with a boss 335, and the top end of the outer edge of the first connecting seat 32 may abut against the boss 335, that is, the top end of the groove wall of the connecting groove 321 may abut against the boss 335, so as to support the second connecting seat 33.
In an alternative embodiment of the utility model, the first connection socket 32 may be connected to the work machine's lower carriage by a plurality of third fasteners 35.
Wherein, a plurality of fixing holes 322 may be disposed on the first connecting seat 32, the plurality of fixing holes 322 may be uniformly distributed along the circumference of the first connecting seat 32, and the plurality of third fixing members 35 may respectively pass through the fixing holes 322 and be fixedly connected with the lower carriage of the working machine. In this way, the stability of the connection of the first connecting seat 32 with the alighting vehicle can be improved.
Here, the fixing hole 322 may be provided on the bottom wall of the connection groove 321 so that the fixing hole 322 is communicated with the connection groove 321, thus, not only facilitating the disassembly and assembly of the first connection seat 32 and the second connection seat 33, but also improving the strength of the first connection seat 32, and improving the aesthetic property of the installation of the first connection seat 32.
The third fixing member 35 may be a fixing bolt.
The first connection base 32 may be connected to the mount 2 of the work machine for getting off.
The working machine provided by the utility model will be described below, and the working machine described below and the connecting device 3 described above can be referred to correspondingly to each other.
The working machine provided by the utility model can comprise a loading device, a unloading device, a slewing bearing and a connecting device 3, wherein the connecting device 3 can be any connecting device in the embodiment.
Wherein, the inner ring of the slewing bearing 31 can be connected with the upper vehicle, the lower vehicle can be provided with a fixed seat 2, and the connecting device 3 is used for connecting the outer ring of the slewing bearing 31 with the fixed seat 2 so as to realize the connection of the upper vehicle and the lower vehicle.
Here, the convex portion 331 of the second coupling seat 33 of the coupling device 3 may be coupled with the outer ring 311 of the pivoting support 31, and the first coupling seat 32 of the coupling device 3 may be coupled with the fixing seat 2.
It should be noted that the fixing base 2 may be disposed at a top end of a chassis of the lower vehicle.
The advantages achieved by the working machine provided by the utility model are consistent with those achieved by the connecting device 3 provided by the utility model, and will not be described in detail here.
The working machine may be a crane, an excavator, a rotary drilling machine, or other engineering machines.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present utility model without undue burden.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (10)
1. A connection device detachably mounted below a slewing bearing, comprising:
the first connecting seat is fixedly connected with the lower vehicle of the working machine;
the second connecting seat is detachably connected with the first connecting seat, a convex part is arranged on the outer edge of the second connecting seat, the convex part extends along the radial outer end of the second connecting seat, and the convex part is connected with the outer ring of the slewing bearing.
2. The connection device of claim 1, wherein the outer race of the slewing bearing is detachably connected to the boss by a first fixing member.
3. The connection device of claim 1, wherein the first connection mount and the second connection mount are detachably connected by a second securing member.
4. A connection device according to claim 3, wherein one of the first and second connection seats is provided with a connection slot and the other is provided with a connection portion, the connection portion being insertable into the connection slot.
5. The connection device of claim 4, wherein the second fixing member is detachably connected to the connection portion through a groove wall of the connection groove.
6. The connecting device according to claim 2, wherein a first connecting hole is formed in the outer ring of the slewing bearing, a second connecting hole is formed in the protruding portion, the second connecting hole and the first connecting hole are coaxially arranged and are matched with the first fixing piece, and the first fixing piece can penetrate through the second connecting hole to extend into the first connecting hole so as to connect the protruding portion and the outer ring of the slewing bearing.
7. The connection device according to claim 1, wherein the protrusion is of annular configuration, the protrusion being coaxially arranged with the second connection socket.
8. The connection device according to claim 4, wherein the connection groove is an annular groove coaxially arranged with the first connection seat or the second connection seat; the connecting part is of an annular structure, and the connecting part and the first connecting seat or the second connecting seat are coaxially arranged.
9. The connection device of claim 4, wherein the connection portion and the connection slot are axially abutted and the second securing member is capable of radially connecting the connection portion and the connection slot.
10. A work machine, comprising:
loading;
the lower vehicle is provided with a fixed seat;
the inner ring of the slewing bearing is connected with the upper trolley;
the coupling device of any one of claims 1-9 for coupling an outer race of the slewing bearing and the anchor block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223263778.0U CN218911579U (en) | 2022-12-06 | 2022-12-06 | Connecting device and working machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223263778.0U CN218911579U (en) | 2022-12-06 | 2022-12-06 | Connecting device and working machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218911579U true CN218911579U (en) | 2023-04-25 |
Family
ID=86016598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223263778.0U Active CN218911579U (en) | 2022-12-06 | 2022-12-06 | Connecting device and working machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218911579U (en) |
-
2022
- 2022-12-06 CN CN202223263778.0U patent/CN218911579U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2730781B1 (en) | Offshore wind power generator, and method and system for installing the offshore wind power generator | |
| CN102301127B (en) | Method for installing a wind turbine, a nacelle for a wind turbine, and method for transporting elements of a wind turbine | |
| CN102431917B (en) | Rotary table main body structure for crane | |
| CN218911579U (en) | Connecting device and working machine | |
| CN108643154B (en) | Pile leg and assembling method thereof | |
| CN217100168U (en) | Pin shaft fixing structure, auxiliary frame and power assembly switching device and engineering machine | |
| CN104081041A (en) | Rotor blade for a turbine | |
| CN113120810B (en) | Connecting assembly and forklift using same | |
| CN112247495B (en) | Ocean platform crane base reinforcing structure and manufacturing process thereof | |
| CN220540154U (en) | Braking device and dismounting tool thereof | |
| CN212861456U (en) | Vehicle and wheel frame connecting structure | |
| CN104214313B (en) | Locomotive-mounted type gearbox | |
| CN214984598U (en) | High-strength steel engineering machinery hub | |
| CN214456003U (en) | Elevator and rope hitch plate mounting structure | |
| CN220682072U (en) | Traction frame adopting ball pin structure and mining dump truck | |
| CN212427323U (en) | Large machine with quick assembling and disassembling mechanism for getting on and off vehicle | |
| CN110295641B (en) | Excavator transmission system and excavator | |
| CN211901345U (en) | Constant velocity universal joint ball cage and internal star wheel laminating assembly structure device | |
| CN210881521U (en) | Wheel hub structure of electric motor car | |
| CN216689560U (en) | Slewing bearing installation system and excavator | |
| CN218140869U (en) | High-strength hub for large-scale loader | |
| CN211032158U (en) | Transitional connection structure suitable for driving device and tire | |
| CN216692011U (en) | New construction top connecting plate | |
| CN207774664U (en) | Pivoting support component and crane | |
| CN212667024U (en) | Automobile hub convenient to install |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |