CN213895007U - Tower crane with anti-settling support legs - Google Patents
Tower crane with anti-settling support legs Download PDFInfo
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- CN213895007U CN213895007U CN202022923083.5U CN202022923083U CN213895007U CN 213895007 U CN213895007 U CN 213895007U CN 202022923083 U CN202022923083 U CN 202022923083U CN 213895007 U CN213895007 U CN 213895007U
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Abstract
The utility model provides a tower crane that landing leg was prevented subsiding, including the body of the tower, install in revolving stage on the body of the tower, by revolving stage drive pivoted jib loading boom, locating traction frame, connection in body of the tower the place ahead the body of the tower with the round pin axle of traction frame, locating the rear axle assembly of body of the tower rear and be used for the landing leg structure that the complete machine supported, the utility model discloses a hydraulic cylinder piston rod adds the lead screw nut structure, only needs a hydro-cylinder can accomplish the quick flexible of landing leg, and the landing leg structure has remain lead screw nut, has guaranteed the reliable locking of landing leg, has satisfied the operation requirement of hoist, and the tower crane is erect fast of specially adapted construction low-rise building.
Description
Technical Field
The utility model relates to a crane processing field, concretely relates to tower crane that subsidence is prevented to landing leg.
Background
The tower crane is a rotary crane with a movable arm arranged at the upper part of a high tower body, has large operation space and is mainly used for vertical and horizontal conveying of materials and installation of building components in building construction.
At present, most of tower cranes used in the building industry of China are of fixed structures of upper rotary type and upper lifting and joint rising, the rotation of a crane boom and a balance arm is realized through a rotary table arranged at the upper end of a tower body, and the gradual rising is realized through the lifting of the tower body and the addition of a foundation section, so that the traditional tower crane is suitable for large buildings or high-rise buildings, and for some crowded occasions with low-rise buildings with construction floor height of 20-40 m or more surrounding buildings, if the traditional tower crane is adopted, the size and the cost are small, the application is clumsy, and the defects of inconvenience in erection and dismantling, delay of the construction period of building engineering and the like exist; if the vehicle-mounted crane is adopted, not only is the energy consumption large and the cost high, but also the lifting height is often insufficient.
In view of this, in the prior art, a bottom frame and a movable support leg are fixed at the bottom of the whole crane, a rotary table is fixed on the bottom frame through a rotary support, a tower body and a crane boom are foldable and arranged on the rotary table, and the support leg structure can be used for remotely operating, hoisting, amplitude variation and rotation and quickly erecting a tower crane. The supporting leg structure needs the main hydraulic cylinder and the auxiliary hydraulic cylinder to work together to level the bottom frame in the using process, the structure is complex, the cost and the manufacturing difficulty are increased, and the later maintenance is troublesome.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the utility model provides a tower crane that subsidence is prevented to landing leg, include:
the tower body, install in revolving stage on the tower body, by revolving stage drive gyration jib loading boom, locate the traction frame in tower body the place ahead, connect the tower body with the round pin axle of traction frame, locate the rear axle assembly of tower body rear and be used for the landing leg structure that the complete machine supported, the tower body below is equipped with the chassis, the rear axle assembly is fixed on the chassis, the chassis with adopt round pin hub connection between the rear axle assembly, the rear axle assembly is the double bridge structure on general train chassis, the double bridge structure include with the pull rod that the chassis is connected, with the double bridge that the pull rod is connected supports and is used for the installation the mount pad that the double bridge supported, the mount pad with adopt to rotate between the double bridge to connect, the landing leg structure includes movable leg and is used for driving the landing leg oil cylinder assembly of movable leg, landing leg oil cylinder assembly includes landing leg oil cylinder body, The hydraulic lock is fixed on the bottom surface of the cylinder body of the supporting leg cylinder, and the piston rod of the supporting leg cylinder is driven by the cylinder body of the supporting leg cylinder.
Preferably, the piston rod of the support leg oil cylinder is screwed with a screw nut.
Preferably, the supporting leg oil cylinder body is powered by a hydraulic pump station, and the hydraulic pump station is arranged on the tower body.
Preferably, the hydraulic pump station is connected with a multi-way valve.
Preferably, the tower body comprises an upper tower body and a lower tower body, and the upper tower body is folded and stored on the lower tower body.
Has the advantages that:
1. the utility model discloses a hydraulic cylinder piston rod adds screw nut structure, only needs a hydro-cylinder can accomplish the quick flexible of landing leg, and the landing leg structure has kept screw nut, has guaranteed the reliable locking of landing leg, has satisfied the operation requirement of hoist, and tower crane is erect fast of specially adapted construction low-rise building.
2. Compared with the prior art, the utility model discloses compact structure, the preparation is convenient, and cost reduction and the maintenance of being convenient for can guarantee the landing leg at the during operation, reliably locks the landing leg, avoids the landing leg to subside the emergence of phenomenon.
Drawings
The present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;
fig. 2 is a schematic view of the structure of the middle support leg of the present invention.
The figures in the drawings represent:
1. the double-bridge support comprises a double-bridge support 2, a bottom frame 3, a rotary table 4, a tower body 5, a crane boom 6, a supporting leg structure 7, a bidirectional hydraulic lock 8, a supporting leg oil cylinder body 9, a screw nut 10 and a supporting leg oil cylinder piston rod.
Detailed Description
The technical solution in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.
In the description of the present invention, it should be understood that the terms "front", "back", "left", "right", "up", "down", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1 and 2, the utility model comprises a tower body, a rotary table installed on the tower body, a cargo boom driven by the rotary table to rotate, a traction frame arranged in front of the tower body, a pin shaft connecting the tower body with the traction frame, a rear axle assembly arranged behind the tower body and a support leg structure for supporting the whole machine, wherein a bottom frame is arranged below the tower body, the rear axle assembly is fixed on the bottom frame, the bottom frame is connected with the rear axle assembly by the pin shaft, the rear axle assembly is a double-axle structure of a universal train chassis, the double-axle structure comprises a pull rod connected with the bottom frame, a double-axle support connected with the pull rod and a mounting seat for mounting the double-axle support, the mounting seat is rotationally connected with the double-axle support, the support leg structure comprises a movable support leg and a support oil cylinder assembly for driving the movable support leg, the supporting leg oil cylinder assembly comprises a supporting leg oil cylinder body, a bidirectional hydraulic lock fixed on the bottom surface of the supporting leg oil cylinder body and a supporting leg oil cylinder piston rod driven by the supporting leg oil cylinder body.
The landing leg hydro-cylinder piston rod closes with a screw nut soon, landing leg hydro-cylinder body is provided power by a hydraulic power unit, hydraulic power unit locates on the body of the tower, hydraulic power unit is connected with the multiple unit valve, the body of the tower includes body of the tower and lower body of the tower, it is folding accomodate to go up the body of the tower on the body of the tower down.
The utility model discloses when the state of traveling, chassis and activity landing leg are in the state of withdrawing, and the body of the tower all is the horizontality with the jib loading boom, goes up the body of the tower and folds in proper order and accomodate on the body of the tower down, and after the working position of transition, open the activity landing leg earlier to it is fixed with the pull rod, can carry out subsequent support operation.
When the height of the movable supporting leg needs to be adjusted, the hydraulic pump station is started, the valve rod of the multi-way valve is operated, hydraulic oil enters the large cavity of the supporting leg oil cylinder body through the two-way hydraulic lock, the extension of the supporting leg oil cylinder piston rod can be completed, the valve rod is operated in the reverse direction, the hydraulic oil enters the rod cavity of the supporting leg oil cylinder body through the two-way hydraulic lock, and the supporting leg oil cylinder piston rod is pushed to retract. When the movable supporting leg reaches a proper height, the screw nut is screwed to the lower end face of the supporting leg oil cylinder body along the supporting leg oil cylinder piston rod to be attached, and a locking effect is achieved.
The utility model discloses well landing leg structure is trapezoidal thread lead screw structure because of the surface of landing leg hydro-cylinder piston rod, in case the landing leg hydro-cylinder assembly leaks or when two-way hydraulic pressure lock pressure release etc. can arouse the sunken condition of movable landing leg to take place, through the reliable locking of screw-nut and landing leg hydro-cylinder piston rod lead screw, can bear the load that the movable landing leg receives, prevent that the movable landing leg from sinking, landing leg structure is simple reliable, easily preparation, the tower crane is erect fast to specially adapted construction low-rise building
Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention.
Claims (5)
1. The utility model provides a tower crane that landing leg was prevented subsiding which characterized in that: including the body of the tower, install in revolving stage on the body of the tower, by revolving stage drive gyration jib loading boom, locate traction frame, connection in body of the tower the place ahead of the tower the body of the tower with the round pin axle of traction frame, locate the rear axle assembly of body of the tower rear and be used for the landing leg structure that the complete machine supported, the body of the tower below is equipped with the chassis, the rear axle assembly is fixed on the chassis, the chassis with adopt round pin hub connection between the rear axle assembly, the rear axle assembly is the double bridge structure on general train chassis, the double bridge structure include with the pull rod that the chassis is connected, with the double bridge that the pull rod is connected supports and is used for the installation the mount pad that the double bridge supported, the mount pad with adopt to rotate between the double bridge to connect, the landing leg structure includes movable leg and is used for driving the landing leg cylinder assembly of movable leg, landing leg cylinder assembly includes landing leg cylinder body, The hydraulic lock is fixed on the bottom surface of the cylinder body of the supporting leg cylinder, and the piston rod of the supporting leg cylinder is driven by the cylinder body of the supporting leg cylinder.
2. The tower crane with anti-settling legs as claimed in claim 1, wherein: and a piston rod of the supporting leg oil cylinder is screwed with a screw nut.
3. The tower crane with anti-settling legs as claimed in claim 2, wherein: the supporting leg oil cylinder body is powered by a hydraulic pump station, and the hydraulic pump station is arranged on the tower body.
4. The tower crane with anti-settling legs as claimed in claim 3, wherein: the hydraulic pump station is connected with a multi-way valve.
5. The tower crane with anti-settling legs as claimed in claim 3, wherein: the tower body includes upper tower body and lower tower body, upper tower body is folding accomodate on the tower body down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022923083.5U CN213895007U (en) | 2020-12-09 | 2020-12-09 | Tower crane with anti-settling support legs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022923083.5U CN213895007U (en) | 2020-12-09 | 2020-12-09 | Tower crane with anti-settling support legs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213895007U true CN213895007U (en) | 2021-08-06 |
Family
ID=77101112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022923083.5U Active CN213895007U (en) | 2020-12-09 | 2020-12-09 | Tower crane with anti-settling support legs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213895007U (en) |
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2020
- 2020-12-09 CN CN202022923083.5U patent/CN213895007U/en active Active
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