CN115196513A - Lower-rotation type multifunctional crane - Google Patents

Lower-rotation type multifunctional crane Download PDF

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Publication number
CN115196513A
CN115196513A CN202210619585.XA CN202210619585A CN115196513A CN 115196513 A CN115196513 A CN 115196513A CN 202210619585 A CN202210619585 A CN 202210619585A CN 115196513 A CN115196513 A CN 115196513A
Authority
CN
China
Prior art keywords
arm
swing
folding
lifting
driving device
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.)
Pending
Application number
CN202210619585.XA
Other languages
Chinese (zh)
Inventor
李兴成
钟兴华
阳春华
李义
何建平
刘媛
姚中立
樊烛
谢利平
何文斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Nuclear Industry 24 Construction Co Ltd
Zhonglian Hengtong Machinery Co Ltd
Original Assignee
China Nuclear Industry 24 Construction Co Ltd
Zhonglian Hengtong Machinery Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China Nuclear Industry 24 Construction Co Ltd, Zhonglian Hengtong Machinery Co Ltd filed Critical China Nuclear Industry 24 Construction Co Ltd
Priority to CN202210619585.XA priority Critical patent/CN115196513A/en
Publication of CN115196513A publication Critical patent/CN115196513A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/04—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs the effective length of which is variable in operation, e.g. longitudinally displaceable, extensible
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/06—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs mounted for jibbing or luffing movements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/16—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs supported by columns, e.g. towers having their lower end mounted for slewing movements
    • B66C23/163—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs supported by columns, e.g. towers having their lower end mounted for slewing movements where only part of the column rotates, i.e. at least the bottom part is fixed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
    • B66C23/36—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
    • B66C23/42—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes with jibs of adjustable configuration, e.g. foldable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/68—Jibs foldable or otherwise adjustable in configuration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
    • B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
    • B66C23/705—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic telescoped by hydraulic jacks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/82—Luffing gear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/84—Slewing gear
    • 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
    • B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
    • B66F11/044—Working platforms suspended from booms
    • B66F11/046—Working platforms suspended from booms of the telescoping type
    • 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
    • B66F17/00—Safety devices, e.g. for limiting or indicating lifting force
    • B66F17/006—Safety devices, e.g. for limiting or indicating lifting force for working platforms

Abstract

The invention discloses a lower-turning type multifunctional crane which comprises a base, a turning mechanism, an arm support mechanism and an aerial work mechanism, wherein the turning mechanism is arranged on the base; the arm support mechanism comprises a lifting part and a folding part, the lifting part is connected with the swing mechanism, and the folding part is connected with the lifting part so as to enable the arm support mechanism to be switched between a lifting and hoisting state and an overhead working state; the high-altitude operation mechanism is connected with the arm support mechanism through the arranged leveling mechanism so as to enable the arm support mechanism to be in a high-altitude operation state. The invention realizes the lifting and large-angle amplitude variation of the upper suspension arm, improves the flexibility and the operation range of the arm support, can better match the high-altitude operation requirement of equipment, simultaneously realizes the quick unfolding and folding of the arm support mechanism, improves the obstacle avoidance performance of the arm support, and can be suitable for the requirements of low-rise buildings or space limitation and crowded fields.

Description

Lower-rotation type multifunctional crane
Technical Field
The invention relates to the technical field of engineering mechanical equipment, in particular to a lower-rotation type multifunctional crane.
Background
In the engineering construction or construction site, the construction conditions and the operation environment are complex, and in the operation environment in most construction stages, more structural parts or building material hoisting operation and auxiliary high-altitude operation requirements exist, and on-site tower cranes or hoisting resources are difficult to completely cover or respond in time, so that most light-load and sporadic operation links are replaced and completed on site by manual assistance, and the labor intensity of construction personnel is increased; meanwhile, the construction is very inconvenient due to complex site environment conditions, partial hoisting or overhead operation is determined to be completed by manpower on site, the work efficiency is low, safety risks exist, and the existing crane does not have an overhead operation function and the possibility of expanding the overhead operation function.
Disclosure of Invention
The invention mainly aims to solve the technical problems to a certain extent and provides a lower-rotation type multifunctional crane.
The above problems to be solved by the present invention are realized by the following technical solutions:
the lower-rotation type multifunctional crane comprises a base, a rotation mechanism, an arm support mechanism and an aerial work mechanism, wherein the base is erected on the ground; the swing mechanism is arranged on the base; the arm support mechanism comprises a lifting part and a folding part, the lifting part is connected with the swing mechanism so that the swing mechanism drives the arm support mechanism to rotate, and the folding part is connected with the lifting part so that the arm support mechanism is switched between a lifting and hoisting state and an aerial work state; the high-altitude operation mechanism is connected with the arm support mechanism through the arranged leveling mechanism so as to enable the arm support mechanism to be in a high-altitude operation state.
Preferably, a central body is arranged on the periphery of the base outwards, one end, far away from the base, of the central body is movably connected with a swing supporting leg, a supporting plate is arranged at the end part of the swing supporting leg, and the two supporting plates are connected through a first connecting rod.
Preferably, the supporting plate is movably connected with an adjusting part for adjusting the working height of the base.
Preferably, the slewing mechanism comprises a turntable and a slewing bearing, the slewing bearing is fixedly arranged on the base, the turntable is rotatably connected with the slewing bearing, a counterweight and an electric control device are arranged on the turntable, and the electric control device is electrically connected with the turntable; the lifting part is fixedly connected with the rotary table, and the lifting part is connected with the balance weight through a set pull rod.
Preferably, the lifting part comprises a fixed stand column and a movable stand column, the fixed stand column is fixedly connected with the rotary table, the movable stand column is movably assembled on the fixed stand column, the movable stand column is provided with a connecting seat, and the folding part is fixedly assembled on the connecting seat.
Preferably, the folding part comprises a folding arm, a folding arm amplitude-variable driving device, a telescopic main arm and a telescopic main arm amplitude-variable driving device, one end of the folding arm and one end of the telescopic main arm amplitude-variable driving device are respectively hinged with the telescopic main arm, the other end of the folding arm and the other end of the telescopic main arm amplitude-variable driving device are respectively hinged with the connecting seat, one end of the folding arm amplitude-variable driving device is hinged with the folding arm, and the other end of the folding arm amplitude-variable driving device is hinged with the connecting seat.
Preferably, in a hoisting and hoisting state, a hoisting winch is arranged on the telescopic main arm, and a lifting hook is connected to the end of the hoisting winch extending out of the telescopic main arm.
Preferably, the leveling mechanism comprises a small arm, a leveling driving device, a crank and a swing arm; the small arm is connected with the folding part in an aerial work state, the part of the small arm far away from the folding part is hinged with the swing arm, and the aerial work mechanism is fixedly connected with the swing arm; the crank is respectively hinged with the small arm and the leveling driving device, the crank is hinged with the swing arm through a second connecting rod, and the other end of the leveling driving device is hinged with the small arm so that the leveling driving device drives the crank and the swing arm drives the aerial work mechanism to move.
Preferably, the aerial working mechanism comprises a bracket and a working bucket, the working bucket is arranged on the bracket, and the bracket is provided with a flange plate and a hanging lug and is fixedly connected with the swing arm through the flange plate and the hanging lug.
Compared with the prior art, the technical scheme provided by the application has the following advantages:
the equipment combines the arm support mechanism and the high-altitude operation mechanism, and the arm support mechanism can be switched between a hoisting state and a high-altitude operation state by matching the arm support mechanism for high-altitude operation; the boom mechanism is combined with the folding part, the lifting part is used for longitudinally adjusting the working position, the folding part is used for transversely and angularly adjusting the working position, the flexibility of the boom is improved, the space occupation of equipment is reduced, the on-site erection of the equipment is facilitated, the lifting and large-angle amplitude variation of the upper boom is realized, the flexibility and the operation range of the boom are improved, the aerial work requirements of the equipment can be well matched, meanwhile, the boom mechanism is rapidly unfolded and folded, the obstacle avoidance performance of the boom is improved, and the boom mechanism can be suitable for low-rise buildings or the requirements of limited space and crowded places.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is an assembly view of the crane of the present invention in an aerial work position;
FIG. 2 is an assembly view of the crane in a hoisting position according to the present invention;
FIG. 3 is an assembly view of the base of the present invention;
FIG. 4 is an assembly view showing the inclination angle of the folding part in the high altitude operation state of the present invention;
FIG. 5 is an assembly view of the horizontal position of the fold of the present invention in an aerial work position;
FIG. 6 is an assembly view of the angle of inclination of the folding portion in the condition of lifting and hoisting according to the present invention;
FIG. 7 is an assembly view of the horizontal position of the fold in the hoisted position of the present invention;
fig. 8 is an assembly view of the leveling mechanism device of the present invention.
The reference numbers illustrate:
1-a base; 2-a slewing mechanism; 201-a turntable; 202-slewing bearing; 203-a counterweight; 204-a pull rod; 3-a boom mechanism; 4-an aerial working mechanism; 401-a bracket; 402-a working bucket; 5-a lifting part; 501-fixing the upright post; 502-a movable upright; 503-a connecting seat; 6-a fold; 601-folding arms; 602-a folding arm amplitude variation driving device; 603-telescoping the main arm; 604-a luffing driving device of the telescopic main arm; 7-a leveling mechanism; 701-forearm; 702-leveling drive means; 703-crank; 704-a swing arm; 705-a second link; 8-a central body; 9-swing supporting legs; 10-a foot rest; 11-a first link; 12-an adjustment member; 13-hoisting winch; 14-a hook; 15-flange plate; 16-hanging ear.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if the present invention relates to directional indications (such as up, down, left, right, front, back, 8230; \8230;), the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture, and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if the meaning of "and/or" and/or "appears throughout, the meaning includes three parallel schemes, for example," A and/or B "includes scheme A, or scheme B, or a scheme satisfying both schemes A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
As shown in fig. 1, the invention provides a lower-rotation type multifunctional crane, which comprises a base 1, a rotation mechanism 2, an arm support mechanism 3 and an overhead working mechanism 4, wherein the base 1 is erected on the ground; the swing mechanism 2 is arranged on the base 1; the arm support mechanism 3 comprises a lifting part 5 and a folding part 6, the lifting part 5 is connected with the swing mechanism 2 so that the swing mechanism 2 drives the arm support mechanism 3 to rotate, and the folding part 6 is connected with the lifting part 5 so that the arm support mechanism 3 is switched between a lifting and hoisting state and an overhead working state; the high-altitude operation mechanism 4 is connected with the arm support mechanism 3 through a leveling mechanism 7 so as to enable the arm support mechanism 3 to be in a high-altitude operation state.
The equipment combines the arm support mechanism 3 and the high-altitude operation mechanism 4, and the arm support mechanism 3 can be switched between a hoisting state and a high-altitude operation state by matching the arm support mechanism 3 for high-altitude operation; the boom mechanism 3 is formed by combining a lifting part 5 and a folding part 6, the lifting part 5 longitudinally adjusts the working position, the folding part 6 transversely and angularly adjusts the working position, an angle inclination angle can reach 80 degrees, the optimal working angle is 0-60 degrees, the flexibility of the boom is improved, the space occupation of equipment is reduced, the field erection of the equipment is facilitated, the lifting and large-angle amplitude variation of the upper boom is realized, the flexibility and the operation range of the boom are improved, the high-altitude operation requirements of the equipment can be well matched, meanwhile, the boom mechanism 3 is rapidly unfolded and folded, the obstacle avoidance performance of the boom is improved, and the boom mechanism can be suitable for low-rise buildings or requirements that the space is limited and the field is crowded.
In the embodiment, the device realizes two functions of hoisting and lifting and high-altitude operation, and can meet the conventional operation requirements of hoisting and lifting and high-altitude operation in the building engineering or construction process; under the condition of integrating the characteristics of a crank arm type lifter and a straight arm type aerial working device, the aerial working requirements of 10m working range and 15m lifting height can be simultaneously covered, the flexibility and the amplitude-variable angle range of the working arm are effectively expanded through the combination form of the lifting part 5 and the folding part 6 of the arm support mechanism 3 under the working state so as to improve the space obstacle avoidance capability and the flexibility of the upper working arm when the upper working arm is unfolded for working, the working arm can span 7m (height) obstacles (vertical steel bars or wall surfaces) under the working radius of 7m to ensure the aerial working capability of the aerial working mechanism 4, the aerial working arm can better adapt to narrow space working places, and the arm support mechanism 3 can collect and disturb the equipment in the idle state to reduce the occupied area of the equipment,
as shown in fig. 3, a central body 8 is arranged on the periphery of the base 1 and faces outwards, one end, far away from the base 1, of the central body 8 is movably connected with a swing supporting leg 9, a supporting leg plate 10 is arranged at the end part of the swing supporting leg 9, the two supporting leg plates 10 are connected through a first connecting rod 11, an adjusting part 12 used for adjusting the working height of the base 1 is movably connected onto the supporting leg plate 10, the adjusting part 12 is a screw rod and is assembled on the supporting leg plate 10 in a threaded connection mode, and the adjusting part 12 is used for positioning the working height required by the base 1.
As shown in fig. 2-3, the swing mechanism 2 includes a turntable 201 and a swing support 202, the swing support 202 is fixedly disposed on the base 1, the turntable 201 is rotatably connected to the swing support 202, a counterweight 203 and an electric control device are disposed on the turntable 201, and the electric control device is electrically connected to the turntable 201; the lifting part 5 is fixedly connected with the turntable 201, and the lifting part 5 is connected with the counterweight 203 through a pull rod 204.
The invention adopts a lower rotation mode design and the rotary table 201 is arranged close to the ground, so that the installation, the control and the maintenance of a power unit and an electric control system are convenient, and the safety risk of the installation of the counterweight 203 and the falling of objects at high altitude is reduced.
As shown in fig. 2 to 7, the lifting portion 5 includes a fixed column 501 and a movable column 502, the fixed column 501 is fixedly connected to the turntable 201, the movable column 502 is movably assembled on the fixed column 501, a connection seat 503 is provided on the movable column 502, and the folding portion 6 is fixedly assembled on the connection seat 503.
The folding part 6 comprises a folding arm 601, a folding arm variable amplitude driving device 602, a telescopic main arm 603 and a telescopic main arm variable amplitude driving device 604, wherein one end of the folding arm 601 and one end of the telescopic main arm variable amplitude driving device 604 are hinged with the telescopic main arm 603 respectively, the other end of the folding arm 601 and the other end of the telescopic main arm variable amplitude driving device 604 are hinged with the connecting seat 503 respectively, one end of the folding arm variable amplitude driving device 602 is hinged with the folding arm 601, and the other end of the folding arm variable amplitude driving device 602 is hinged with the connecting seat 503.
In this embodiment, the variable amplitude driving device 602 of the folding boom and the variable amplitude driving device 604 of the main telescopic boom are driven by oil cylinders to realize the unfolding or folding of the folding boom 601 and the main telescopic boom 603.
In the hoisting and hoisting state, a hoisting winch 13 is arranged on the telescopic main arm 503, and a lifting hook 14 is connected to the end of the hoisting winch 13 extending out of the telescopic main arm 503.
The leveling mechanism 7 comprises a small arm 701, a leveling driving device 702, a crank 703 and a swing arm 704; the forearm 701 is connected with the folding part 6 in an overhead working state, the part of the forearm 701, which is far away from the folding part 6, is hinged with the swing arm 704, the overhead working mechanism 4 is fixedly connected with the swing arm 704, specifically, the overhead working mechanism 4 comprises a bracket 401 and a working bucket 402, the working bucket 402 is arranged on the bracket 401, the bracket 401 is provided with a flange plate 15 and a hanging lug 16, and is fixedly connected with the swing arm 704 through the flange plate 15 and the hanging lug 16;
further, referring to fig. 8, the crank 703 is hinged to the lower arm 701 and the leveling driving device 702, the crank 703 is hinged to the swing arm 704 through a second connecting rod 705, and the other end of the leveling driving device 702 is hinged to the lower arm 701, so that the leveling driving device 702 drives the crank 703 and the swing arm 704 drives the aerial work mechanism 4 to move; the high-altitude operation mechanism 4 is connected with the arm support mechanism 3 through the leveling mechanism 7, so that the ground adaptation of the working bucket 402 and the large-angle timely leveling function along with the inclination angle of the suspension arm are realized, the functional mode of the equipment and the combination form of the high-altitude operation arm support are further expanded, and the hoisting and high-altitude operation requirements in a narrow space place of the equipment are better met.
In this embodiment, the leveling driving device 702 is driven by an oil cylinder, and can be powered by a hydraulic pump station of the whole machine, or by an additional electric pump station, which can be installed in the working bucket 402, so as to reduce the action delay and pressure attenuation caused by an excessively long hydraulic pipeline.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (9)

1. A lower-rotation type multifunctional crane is characterized by comprising,
the base stands on the ground;
the slewing mechanism is arranged on the base;
the arm support mechanism comprises a lifting part and a folding part, the lifting part is connected with the swing mechanism so that the swing mechanism drives the arm support mechanism to rotate, and the folding part is connected with the lifting part so that the arm support mechanism is switched between a lifting and hoisting state and an aerial work state;
the high-altitude operation mechanism is connected with the arm support mechanism through the arranged leveling mechanism so as to enable the arm support mechanism to be in a high-altitude operation state.
2. The lower-turning multifunctional crane according to claim 1, wherein the base is provided with a central body around the base, the central body is movably connected with a swinging leg at one end far away from the base, the swinging leg is provided with a supporting plate at the end, and the two supporting plates are connected with each other through a first connecting rod.
3. The lower swing type multi-function crane according to claim 2, wherein the leg plate is movably connected with an adjusting member for adjusting the working height of the base.
4. The lower swing type multifunctional crane according to claim 1, wherein the swing mechanism comprises a turntable and a swing support, the swing support is fixedly arranged on the base, the turntable is rotatably connected with the swing support, a counterweight and an electric control device are arranged on the turntable, and the electric control device is electrically connected with the turntable; the lifting part is fixedly connected with the rotary table, and the lifting part is connected with the balance weight through a pull rod.
5. The lower swing type multifunctional crane according to claim 1, wherein the lifting part comprises a fixed column and a movable column, the fixed column is fixedly connected with the turntable, the movable column is movably assembled on the fixed column, a connecting seat is provided on the movable column, and the folding part is fixedly assembled on the connecting seat.
6. The lower-slewing type multifunctional crane according to claim 5, wherein the folding part comprises a folding arm, a folding arm luffing driving device, a telescopic main arm and a telescopic main arm luffing driving device, one end of the folding arm and one end of the telescopic main arm luffing driving device are respectively hinged with the telescopic main arm, the other end of the folding arm and the other end of the telescopic main arm luffing driving device are respectively hinged with the connecting seat, one end of the folding arm luffing driving device is hinged with the folding arm, and the other end of the folding arm luffing driving device is hinged with the connecting seat.
7. The lower-turning multifunctional crane according to claim 1, wherein a lifting winch is arranged on the telescopic main arm in a lifting and hoisting state, and a lifting hook is connected to an end of the lifting winch extending out of the telescopic main arm.
8. The lower swing type multifunctional crane according to claim 1, wherein the leveling mechanism comprises a small arm, a leveling driving device, a crank and a swing arm; the small arm is connected with the folding part in an overhead working state, the part of the small arm far away from the folding part is hinged with the swing arm, and the overhead working mechanism is fixedly connected with the swing arm; the crank is respectively hinged with the small arm and the leveling driving device, the crank is hinged with the swing arm through a second connecting rod, and the other end of the leveling driving device is hinged with the small arm so that the leveling driving device drives the crank and the swing arm drives the aerial work mechanism to move.
9. The lower-rotary-type multifunctional crane according to claim 8, wherein the aerial work mechanism comprises a bracket and a working bucket, the working bucket is arranged on the bracket, and the bracket is provided with a flange plate and a hanging lug and is fixedly connected with the swing arm through the flange plate and the hanging lug.
CN202210619585.XA 2022-05-31 2022-05-31 Lower-rotation type multifunctional crane Pending CN115196513A (en)

Priority Applications (1)

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CN202210619585.XA CN115196513A (en) 2022-05-31 2022-05-31 Lower-rotation type multifunctional crane

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Application Number Priority Date Filing Date Title
CN202210619585.XA CN115196513A (en) 2022-05-31 2022-05-31 Lower-rotation type multifunctional crane

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CN115196513A true CN115196513A (en) 2022-10-18

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CN (1) CN115196513A (en)

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