CN215711311U - Multi-working-condition truss arm head and crane - Google Patents
Multi-working-condition truss arm head and crane Download PDFInfo
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- CN215711311U CN215711311U CN202121478395.8U CN202121478395U CN215711311U CN 215711311 U CN215711311 U CN 215711311U CN 202121478395 U CN202121478395 U CN 202121478395U CN 215711311 U CN215711311 U CN 215711311U
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- arm head
- pulling plate
- plate
- mounting hole
- gantry
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- 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
- B66C23/66—Outer or upper end constructions
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The utility model provides a multi-working-condition truss arm head and a crane, wherein the multi-working-condition truss arm head comprises: an arm head body having a first end and a second end; the gantry is provided with a first end and a second end, the lower part of the first end of the gantry is rotatably connected with the lower part of the second end of the arm head main body, and the second end of the gantry is suitable for being connected with the transfer arm joint; the device comprises a first pulling plate structure and a second pulling plate structure, wherein a pulling force detection device is arranged in the second pulling plate structure; under the working condition of wind power hoisting, the upper part of the first end of the gantry is rotatably connected with the upper part of the second end of the arm head main body through a first pulling plate structure; under the shield hoisting working condition, the upper part of the first end of the portal frame is rotatably connected with the upper part of the second end of the arm head main body through a second pulling plate structure. The multi-working-condition truss arm head can be used as a wind power arm head and also can be used as a shield arm head so as to meet different use working conditions.
Description
Technical Field
The utility model relates to the technical field of cranes, in particular to a multi-working-condition truss arm head and a crane.
Background
The crane is a multi-action crane which can vertically lift and horizontally carry heavy objects in a certain range through the suspension arm and the steel wire rope wound around the main pulley of the suspension arm, and is widely applied in the hoisting industry. A boom of a conventional crane generally includes a main boom, an adapter boom section, a truss boom head, and the like, wherein a main pulley is installed at a front end of the truss boom head, and a steel wire rope for hoisting a heavy object passes around the main pulley to hoist the heavy object.
With the vigorous development of the hoisting industry, hoisting pieces are also diversified. For example, in the field of wind power development, hoisting parts are mostly thin and high parts such as a tower drum and a fan; in the tunnel development field, the hoisting piece is mostly the component part of shield machine, and these parts not only need carry out the upset operation at the in-process of lifting by crane, but also need real-time supervision to lift by crane pulling force to guarantee that each lifting point atress is balanced. Therefore, the truss arm head of the crane needs to adapt to different hoisting working conditions so as to meet different use requirements. The truss arm head of the existing crane has a single function, and the requirements of individuation and multiple working conditions of hoisting operation cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model solves the problems that: how to improve the application range of the crane truss arm head to meet different application requirements.
In order to solve the above problems, the present invention provides a multi-operating mode truss arm head, including:
an arm head body having a first end and a second end;
the gantry is provided with a first end and a second end, the lower part of the first end of the gantry is rotatably connected with the lower part of the second end of the arm head main body, and the second end of the gantry is suitable for being connected with the transfer arm joint;
a first pull plate structure;
the second pulling plate structure is internally provided with a pulling force detection device;
under the working condition of wind power hoisting, the upper part of the first end of the gantry is rotatably connected with the upper part of the second end of the arm head main body through the first pulling plate structure; under the shield hoisting working condition, the upper part of the first end of the portal frame is rotatably connected with the upper part of the second end of the arm head main body through the second pulling plate structure.
Optionally, the second pulling plate structure comprises a front pulling plate, a rear pulling plate and the pulling force detection device; the front pulling plate is used for being rotatably connected with the upper part of the first end of the gantry, and the rear pulling plate is used for being rotatably connected with the upper part of the second end of the arm head main body; the front pull plate is provided with a first cavity, the rear pull plate is provided with a second cavity, the first cavity is communicated with the second cavity, one part of the tension detection device is accommodated in the first cavity and connected with the front pull plate, and the other part of the tension detection device is accommodated in the second cavity and connected with the rear pull plate.
Optionally, a first connecting hole is formed in the front pulling plate, a second connecting hole is formed in the rear pulling plate, a third connecting hole and a fourth connecting hole are formed in the tension detection device, one end of the tension detection device is connected with the front pulling plate through a pin shaft at the third connecting hole and the first connecting hole, and the other end of the tension detection device is connected with the rear pulling plate through a pin shaft at the fourth connecting hole and the second connecting hole.
Optionally, the front pulling plate includes a first side vertical plate provided with a first mounting hole, a second side vertical plate provided with a second mounting hole, and two second connecting plates arranged oppositely, the first side vertical plate, the second side vertical plate, and the two second connecting plates enclose the first cavity together, the first mounting hole and the second mounting hole are coaxially arranged, and the front pulling plate is hinged to the first mounting hole and the second mounting hole through a pin shaft at the upper portion of the second end of the arm head main body.
Optionally, the rear pulling plate includes a third side plate provided with a third mounting hole, a fourth side plate provided with a fourth mounting hole, and two third connecting plates disposed oppositely, the third side plate, the fourth side plate, and the two third connecting plates together enclose the second cavity, the third mounting hole and the fourth mounting hole are coaxially disposed, and the rear pulling plate is hinged to the first end upper portion of the gantry at the third mounting hole and the fourth mounting hole through a pin shaft.
Optionally, the first side vertical plate and the third side vertical plate are located on the same side of the second pulling plate structure, and in the length direction of the second pulling plate structure, a gap between the first side vertical plate and the third side vertical plate is between 0 and 2 mm.
Optionally, the second side vertical plate and the fourth side vertical plate are located on the same side of the second pulling plate structure, and a space is formed between the second side vertical plate and the fourth side vertical plate to form an avoidance gap, where the avoidance gap is suitable for avoiding a protrusion on the tension detecting device.
Optionally, the first pulling plate structure includes two fifth side vertical plates disposed oppositely and two first connecting plates disposed oppositely, both ends of the fifth side vertical plates in the length direction are provided with fifth mounting holes, and both ends of the first pulling plate structure in the length direction are respectively hinged to the upper portions of the first end of the gantry and the upper portion of the second end of the arm head main body at the fifth mounting holes through pin shafts.
Optionally, the multi-working-condition truss arm head further comprises a reversing pulley block and a suspension pulley block, the reversing pulley block is arranged at the upper end of the arm head main body, and the suspension pulley block is arranged at the lower part of the first end of the arm head main body.
The utility model also provides a crane, which comprises a main crane boom, a switching boom joint and the multi-working-condition truss boom head, wherein one end of the switching boom joint is connected with the main crane boom, and the other end of the switching boom joint is connected with the second end of the portal frame of the multi-working-condition truss boom head.
Compared with the prior art, the multi-working-condition truss arm head is provided with the first pulling plate structure and the second pulling plate structure, the tension detection device is arranged in the second pulling plate structure, when the upper part of the rear end of the arm head main body is connected with the upper part of the front end of the gantry through the first pulling plate structure, the truss arm head is inclined downwards by a certain angle, and the angle meets the requirements of the wind power hoisting industry, so that the truss arm head can be used as the wind power arm head to facilitate hoisting operation under the wind power hoisting working condition, the angle does not need to be changed, and the installation efficiency is high; when the rear end upper portion of arm head main part and the front end upper portion of portal pass through second arm-tie structural connection, truss arm head is when obtaining the certain angle of downward sloping, because of pulling force detection device's setting, make this truss arm head can also detect the pulling force of second arm-tie structure, thereby make this truss arm head can regard as shield structure arm head to use, so that when overturning the hoist and mount to the hoist and mount piece in shield structure hoist and mount operating mode, can the stress state of each lifting point of real-time detection, guarantee the stress balance of each lifting point, improve the stability and the security of hoist and mount operation.
Drawings
Fig. 1 is a schematic structural diagram of a multi-working-condition truss arm head using a second pulling plate structure when connected with a transfer arm joint in the embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a multi-operating-mode truss arm head using a second pulling plate structure according to an embodiment of the utility model;
FIG. 3 is a schematic structural diagram of a multi-operating-mode truss arm head using a first pulling plate structure according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a second strap structure according to an embodiment of the present disclosure;
FIG. 5 is an exploded view of a second strap configuration in accordance with an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a first pulling plate structure in the embodiment of the present invention.
Description of reference numerals:
1. an arm head main body; 2. a gantry; 3. a first pull plate structure; 31. a fifth side vertical plate; 311. a fifth mounting hole; 32. a first connecting plate; 4. a second pull plate structure; 41. a front pulling plate; 411. a first cavity; 412. a first side vertical plate; 4121. a first mounting hole; 413. a second side vertical plate; 4131. a second mounting hole; 414. a second connecting plate; 415. a first connection hole; 42. a back pulling plate; 421. a second cavity; 422. a third side riser; 4221. a third mounting hole; 423. a fourth side riser; 424. a third connecting plate; 425. a second connection hole; 43. a tension detection device; 431. a third connection hole; 432. a fourth connection hole; 44. avoiding the notch; 5. a reversing pulley block; 6. a hoisting pulley block; 70. and (4) switching arm sections.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the utility model described herein are capable of operation in sequences other than those illustrated or described herein.
The Z-axis in the drawings indicates a vertical direction, i.e., an up-down position, and a forward direction of the Z-axis (i.e., an arrow direction of the Z-axis) indicates an upward direction and a reverse direction of the Z-axis indicates a downward direction; the X-axis in the drawing represents the horizontal direction and is designated as the left-right position, and the forward direction of the X-axis represents the left side and the reverse direction of the X-axis represents the right side; the Y-axis in the drawings is represented as a front-rear position, and a forward direction of the Y-axis represents a front side and a reverse direction of the Y-axis represents a rear side; it should also be noted that the foregoing Z-axis, Y-axis, and X-axis representations are merely intended to facilitate the description of the utility model and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the utility model.
Referring to fig. 1 to 3, an embodiment of the present invention provides a multi-operating-mode truss arm head (hereinafter referred to as a truss arm head), including an arm head main body 1, a gantry 2, a first pulling plate structure 3 and a second pulling plate structure 4, wherein a pulling force detecting device 43 is disposed in the second pulling plate structure 4, the arm head main body 1 has a first end and a second end, the gantry 2 has a first end and a second end, a lower portion of the first end of the gantry 2 is rotatably connected with a lower portion of the second end of the arm head main body 1, and the second end of the gantry 2 is adapted to be connected with an adapter arm joint 70; under the working condition of wind power hoisting, the upper part of the first end of the gantry 2 is rotatably connected with the upper part of the second end of the arm head main body 1 through a first pulling plate structure 3; under the shield hoisting working condition, the upper part of the first end of the portal frame 2 is rotatably connected with the upper part of the second end of the arm head main body 1 through a second pulling plate structure 4.
Wherein, the first end of the arm head body 1 refers to the end of the arm head body 1 located in the forward direction of the Y axis in FIG. 1 and is also the front end of the arm head body 1, the upper part of the first end of the arm head body 1 refers to the part of the front end of the arm head body 1 located in the forward direction of the Z axis and is also the upper part of the front end of the arm head body 1, the lower part of the first end of the arm head body 1 refers to the part of the front end of the arm head body 1 located in the reverse direction of the Z axis and is also the lower part of the front end of the arm head body 1, correspondingly, the second end of the arm head body 1 refers to the end of the arm head body 1 located in the reverse direction of the Y axis in FIG. 1 and is also the rear end of the arm head body 1, and the upper part of the second end of the arm head body 1 refers to the part of the rear end of the arm head body 1 located in the forward direction of the Z axis and is also the upper part of the rear end of the arm head body 1, and the lower part of the second end of the arm head body 1 refers to the part of the rear end of the arm head body 1 located in the reverse direction of the Z axis, which is also the lower rear end of the arm head main body 1. The parts of the gantry 2 in various orientations (such as the first end and the second end of the gantry 2, the upper part of the first end and the lower part of the first end of the gantry 2, etc.) are expressed as the same as the arm head main body 1, and will not be described in detail herein. When the crane performs a hoisting operation by using the truss arm head, a heavy object is suspended at the front end of the arm head main body 1, that is, the front end of the arm head main body 1 is also the end at which the arm head main body 1 is connected with the heavy object through a steel wire rope and hoists the heavy object.
In the embodiment, the truss arm head is provided with the first pulling plate structure 3 and the second pulling plate structure 4, and the tension detection device 43 is arranged in the second pulling plate structure 4, when the upper part of the rear end of the arm head main body 1 is connected with the upper part of the front end of the gantry 2 through the first pulling plate structure 3, the truss arm head is inclined downwards by a certain angle, and the angle meets the requirement of the wind power hoisting industry, so that the truss arm head can be used as the wind power arm head to facilitate hoisting operation under the wind power hoisting working condition (such as hoisting a tower cylinder, a fan and the like), the angle does not need to be changed, and the installation efficiency is high; when the rear end upper portion of arm head main part 1 is connected through second arm-tie structure 4 with the front end upper portion of portal 2, truss arm head is when obtaining the certain angle of downward sloping, because of the setting of pulling force detection device 43, make this truss arm head can also detect the pulling force of second arm-tie structure 4, thereby make this truss arm head can regard as shield arm head to use, so that when overturning and hoisting the hoisting piece in shield hoisting operating mode (for example hoisting shield machine or its component parts etc.), the stress state of each lifting point can be detected in real time, guarantee the stress balance of each lifting point, improve the stability and the security of hoist and mount operation.
Further, preferably, the tension sensor is used as the tension detection device 43, and the tension sensor is small in size, convenient to install in the second pulling plate structure 4, easy to obtain in the market and low in cost.
Alternatively, as shown in fig. 4 and 5, the second pulling plate structure 4 comprises a front pulling plate 41, a rear pulling plate 42 and a pulling force detecting device 43; the front pulling plate 41 is used for being rotatably connected with the upper part of the first end of the gantry 2, and the rear pulling plate 42 is used for being rotatably connected with the upper part of the second end of the arm head main body 1; the front pulling plate 41 is provided with a first cavity 411, the rear pulling plate 42 is provided with a second cavity 421, the first cavity 411 is communicated with the second cavity 421, one part of the tension detection device 43 is accommodated in the first cavity 411 and connected with the front pulling plate 41, and the other part of the tension detection device 43 is accommodated in the second cavity 421 and connected with the rear pulling plate 42.
In this embodiment, the second pulling plate structure 4 is a split structure, the front end of the pulling force detecting device 43 is connected to the front pulling plate 41, the rear end of the pulling force detecting device 43 is connected to the rear pulling plate 42, the front half of the pulling force detecting device 43 is accommodated in the first cavity 411 of the front pulling plate 41, and the rear half of the pulling force detecting device 43 is accommodated in the second cavity 421 of the rear pulling plate 42. In this way, the front pull plate 41 and the rear pull plate 42 are respectively provided with a cavity structure having the first cavity 411 and the second cavity 421, and the tension detection device 43 is installed in the first cavity 411 and the second cavity 421, so that the tension detection device 43 can be protected from being impacted by other objects, the damage probability of the tension detection device 43 is reduced, and the service life is prolonged.
Alternatively, as shown in fig. 4 and 5, a first connection hole 415 is formed in the front pull plate 41, a second connection hole 425 is formed in the rear pull plate 42, a third connection hole 431 and a fourth connection hole 432 are formed in the tension detection device 43, one end of the tension detection device 43 is connected to the front pull plate 41 through a pin at the third connection hole 431 and the first connection hole 415, and the other end of the tension detection device 43 is connected to the rear pull plate 42 through a pin at the fourth connection hole 432 and the second connection hole 425. Thus, the rotation connection between the front pulling plate 41 and the tension detection device 43 is realized by inserting the pin shaft into the third connecting hole 431 and the first connecting hole 415 and matching the locking members such as the cotter pin, the rotation connection between the rear pulling plate 42 and the tension detection device 43 is realized by inserting the pin shaft into the fourth connecting hole 432 and the second connecting hole 425 and matching the locking members such as the cotter pin, the structure is simple, the assembly and disassembly are convenient, and the assembly efficiency is high.
Optionally, as shown in fig. 5, the front pulling plate 41 includes a first side standing plate 412 provided with a first mounting hole 4121, a second side standing plate 413 provided with a second mounting hole 4131, and two second connecting plates 414 disposed oppositely, the first side standing plate 412, the second side standing plate 413, and the two second connecting plates 414 together enclose a first cavity 411, and the first mounting hole 4121 and the second mounting hole 4131 are coaxially disposed, and the front pulling plate 41 is hinged to the upper portion of the rear end of the arm head main body 1 at the first mounting hole 4121 and the second mounting hole 4131 through a pin.
In this embodiment, the first side vertical plate 412 and the second side vertical plate 413 are oppositely disposed in the left-right direction and have an interval, the second connecting plate 414 is oppositely disposed in the up-down direction and is connected to the first side vertical plate 412 and the second side vertical plate 413, the end of the first side vertical plate 412 provided with the first mounting hole 4121 and the end of the second side vertical plate 413 provided with the second mounting hole 4131 form a double-joint fork structure, correspondingly, the upper portion of the rear end of the arm head main body 1 is provided with a single-joint fork structure, and the single-joint fork structure is provided with the first hinge hole, the hinge pin is sequentially inserted into the first mounting hole 4121, and the first hinge hole and the second mounting hole 4131 are used for realizing the hinge joint between the front pull plate 41 and the upper portion of the rear end of the arm head main body 1, which is simple in structure and convenient to assemble and disassemble.
Optionally, as shown in fig. 5, the back pulling plate 42 includes a third side plate 422 provided with a third mounting hole 4221, a fourth side plate 423 provided with a fourth mounting hole, and two third connecting plates 424 arranged oppositely, the third side plate 422, the fourth side plate 423, and the two third connecting plates 424 together enclose a second cavity 421, the third mounting hole 4221 and the fourth mounting hole are coaxially arranged, and the back pulling plate 42 is hinged to the first end upper portion of the gantry 2 at the third mounting hole 4221 and the fourth mounting hole through a pin shaft.
In this embodiment, the third vertical plate 422 and the fourth vertical plate 423 are disposed oppositely in the left-right direction and have a distance therebetween, the third connecting plate 424 is disposed oppositely in the up-down direction and is connected to the third vertical plate 422 and the fourth vertical plate 423, the end of the third vertical plate 422 having the third mounting hole 4221 and the end of the fourth vertical plate 423 having the fourth mounting hole form a double-joint fork structure, correspondingly, the upper portion of the front end of the portal 2 is provided with a single-lug plate structure, and the single-lug plate structure is provided with the second hinge hole, the hinge connection between the back pull plate 42 and the upper portion of the front end of the portal 2 is realized by sequentially inserting the pin shaft into the third mounting hole 4221, the second hinge hole and the fourth mounting hole, the structure is simple, and the dismounting is convenient.
Optionally, as shown in fig. 4, the first lateral plate 412 and the third lateral plate 422 are located on the same side of the second pull plate structure 4, and in the length direction of the second pull plate structure 4, a gap between the first lateral plate 412 and the third lateral plate 422 is between 0 and 2 mm. Here, the longitudinal direction of the second pulling plate structure 4 refers to the Y-axis direction in the drawing, and is also the front-rear direction.
In the actual production process, under the influence of manufacturing errors and for the convenience of installing the tension detection device 43, after the front pull plate 41 and the rear pull plate 42 are connected by the tension detection device 43, a gap is formed between the first side vertical plate 412 of the front pull plate 41 and the third side vertical plate 422 of the rear pull plate 42. In this embodiment, the gap between the first side vertical plate 412 and the third side vertical plate 422 located on the same side is set within the range of 0-2mm, so that when the front pulling plate 41 and the rear pulling plate 42 rotate relatively, the rotation angle is small, and the tension detection device 43 disposed in the first cavity 411 and the second cavity 421 will not interfere with the second connecting plate 414 or the third connecting plate 424, thereby further protecting the tension detection device 43 from being damaged; the gap restricts relative rotation among the front pulling plate 41, the rear pulling plate 42, and the tension detecting device 43, and the entire truss arm can be further prevented from tilting backward.
Optionally, as shown in fig. 4, the second side vertical plate 413 and the fourth side vertical plate 423 are located on the same side of the second pulling plate structure 4, and a distance is provided between the second side vertical plate 413 and the fourth side vertical plate 423 to form an avoiding notch 44, where the avoiding notch 44 is adapted to avoid a protruding portion on the tensile force detecting device 43.
In this embodiment, a distance exists between the rear end of the second side vertical plate 413 and the front end of the fourth side vertical plate 423, and the distance enables an avoiding notch 44 to be formed between the rear end of the second side vertical plate 413 and the front end of the fourth side vertical plate 423 to avoid a protruding portion on the tension detecting device 43. Thus, the avoiding notch 44 is arranged to avoid the convex part on the tension detecting device 43, so that the volume and the mass of the second pulling plate structure 4 can be reduced, and the manufacturing cost is saved.
Optionally, as shown in fig. 6, the first pulling plate structure 3 includes two fifth side vertical plates 31 disposed oppositely and two first connecting plates 32 disposed oppositely, both ends of the fifth side vertical plates 31 in the length direction are provided with fifth mounting holes 311, and both ends of the first pulling plate structure 3 in the length direction are hinged to the upper portion of the first end of the gantry 2 and the upper portion of the second end of the arm head main body 1 through pin shafts at the fifth mounting holes 311, respectively. The longitudinal direction of the fifth side standing plate 31 is the Y-axis direction in the figure, and is also the front-rear direction.
In this embodiment, first arm-tie structure 3 includes two fifth side riser 31 and two first connecting plates 32, two fifth side riser 31 set up relatively and have the interval in the left and right sides direction, two first connecting plates 32 set up relatively and connect two fifth side riser 31 in upper and lower direction, and both ends all are equipped with fifth mounting hole 311 around fifth side riser 31, make both ends constitute the fork structure of two connecing in the front and back of two fifth side risers 31, correspondingly, the rear end upper portion of arm head main part 1 is equipped with singly connects the fork structure, and this singly connects and is equipped with first hinge hole on the fork structure, the front end upper portion of portal 2 is equipped with the monaural plate structure, and be equipped with the second hinge hole on this monaural plate structure. The hinge connection between the front end of the first pulling plate structure 3 and the upper part of the rear end of the arm head main body 1 is realized by inserting a pin shaft into the fifth mounting hole 311 and the first hinge hole at the front end of the fifth side vertical plate 31, the hinge connection between the rear end of the first pulling plate structure 3 and the upper part of the front end of the door frame 2 is realized by inserting the pin shaft into the fifth mounting hole 311 and the second hinge hole at the rear end of the fifth side vertical plate 31, the structure is simple, and the dismounting is convenient.
Optionally, as shown in fig. 1 to fig. 3, the multi-operating-condition truss arm head further includes a reversing pulley block 5 and a hanging pulley block 6, the reversing pulley block 5 is disposed at the upper end of the arm head main body 1, and the hanging pulley block 6 is disposed at the lower portion of the first end of the arm head main body 1. Here, the upper end of the arm head body 1 refers to an end of the arm head body 1 located in the Z-axis forward direction in the drawing, and correspondingly, the lower end of the arm head body 1 refers to an end of the arm head body 1 located in the Z-axis reverse direction in the drawing.
In this embodiment, the reversing pulley block 5 is fixed to the upper end of the arm head body 1 by a pin shaft, and the hanging pulley block 6 is fixed to the lower portion of the front end of the arm head body 1 by a pulley shaft. Compared with the prior art, the reversing pulley block 5 is fixed at the pull plate structure, so that the reversing pulley block 5 is more stably fixed, the design structure of the first pull plate structure 3 or the second pull plate structure 4 is simplified, and the light-weight design is facilitated.
The utility model also provides a crane, which comprises a main crane boom, an adapting arm joint 70 and the multi-working-condition truss arm head, wherein one end of the adapting arm joint 70 is connected with the main crane boom, and the other end of the adapting arm joint 70 is connected with the second end of the gantry 2 of the multi-working-condition truss arm head.
The beneficial effect of the crane in the embodiment relative to the prior art is the same as the beneficial effect of the multi-working-condition truss arm head relative to the prior art, and the description is omitted here.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to be within the scope of the present disclosure.
Claims (10)
1. A multi-operating mode truss arm head, characterized by includes:
an arm head body having a first end and a second end;
the gantry is provided with a first end and a second end, the lower part of the first end of the gantry is rotatably connected with the lower part of the second end of the arm head main body, and the second end of the gantry is suitable for being connected with the transfer arm joint;
a first pull plate structure;
the second pulling plate structure is internally provided with a pulling force detection device;
under the working condition of wind power hoisting, the upper part of the first end of the gantry is rotatably connected with the upper part of the second end of the arm head main body through the first pulling plate structure; under the shield hoisting working condition, the upper part of the first end of the portal frame is rotatably connected with the upper part of the second end of the arm head main body through the second pulling plate structure.
2. The multi-operating-condition truss arm head as claimed in claim 1, wherein the second pulling plate structure comprises a front pulling plate, a rear pulling plate and the pulling force detection device; the front pulling plate is used for being rotatably connected with the upper part of the first end of the gantry, and the rear pulling plate is used for being rotatably connected with the upper part of the second end of the arm head main body; the front pull plate is provided with a first cavity, the rear pull plate is provided with a second cavity, the first cavity is communicated with the second cavity, one part of the tension detection device is accommodated in the first cavity and connected with the front pull plate, and the other part of the tension detection device is accommodated in the second cavity and connected with the rear pull plate.
3. The multi-operating-condition truss arm head as claimed in claim 2, wherein the front pulling plate is provided with a first connecting hole, the rear pulling plate is provided with a second connecting hole, the tension detection device is provided with a third connecting hole and a fourth connecting hole, one end of the tension detection device is connected with the front pulling plate at the third connecting hole and the first connecting hole through a pin shaft, and the other end of the tension detection device is connected with the rear pulling plate at the fourth connecting hole and the second connecting hole through a pin shaft.
4. The multi-working-condition truss arm head as claimed in claim 2, wherein the front pull comprises a first side vertical plate provided with a first mounting hole, a second side vertical plate provided with a second mounting hole, and two second connecting plates which are oppositely arranged, the first side vertical plate, the second side vertical plate and the two second connecting plates jointly enclose the first cavity, the first mounting hole and the second mounting hole are coaxially arranged, and the front pull plate is hinged to the upper portion of the second end of the arm head main body at the first mounting hole and the second mounting hole through a pin shaft.
5. The multi-working-condition truss arm head as claimed in claim 4, wherein the back pulling plate comprises a third side plate provided with a third mounting hole, a fourth side plate provided with a fourth mounting hole, and two third connecting plates which are oppositely arranged, the third side plate, the fourth side plate and the two third connecting plates together enclose the second cavity, the third mounting hole and the fourth mounting hole are coaxially arranged, and the back pulling plate is hinged to the upper portion of the first end of the gantry at the third mounting hole and the fourth mounting hole through a pin shaft.
6. The multi-working-condition truss arm head as claimed in claim 5, wherein the first and third side plates are located on the same side of the second pulling plate structure, and the gap between the first and third side plates is between 0-2mm in the length direction of the second pulling plate structure.
7. The multi-working-condition truss arm head as claimed in claim 5, wherein the second side vertical plate and the fourth side vertical plate are located on the same side of the second pulling plate structure, and the second side vertical plate and the fourth side vertical plate have a distance therebetween and form an avoidance gap, and the avoidance gap is adapted to avoid a protruding portion on the tension detection device.
8. The multi-operating-condition truss arm head as claimed in claim 1, wherein the first pulling plate structure comprises two fifth side vertical plates which are oppositely arranged and two first connecting plates which are oppositely arranged, wherein fifth mounting holes are formed in both ends of each fifth side vertical plate in the length direction, and both ends of the first pulling plate structure in the length direction are respectively connected with the upper portion of the first end of the gantry and the upper portion of the second end of the arm head main body at the fifth mounting holes through pin shafts.
9. The multi-operational mode truss arm head of any one of claims 1-8 further comprising a reversing pulley block and a suspended pulley block, wherein the reversing pulley block is disposed at an upper end of the arm head body, and the suspended pulley block is disposed below the first end of the arm head body.
10. A crane comprising a main boom, an adapter boom section and a multi-mode truss arm head as claimed in any one of claims 1 to 9, wherein one end of the adapter boom section is connected to the main boom and the other end of the adapter boom section is connected to the second end of the gantry of the multi-mode truss arm head.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121478395.8U CN215711311U (en) | 2021-06-30 | 2021-06-30 | Multi-working-condition truss arm head and crane |
| PCT/CN2022/102102 WO2023274263A1 (en) | 2021-06-30 | 2022-06-29 | Multi-working-condition lattice jib head and crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121478395.8U CN215711311U (en) | 2021-06-30 | 2021-06-30 | Multi-working-condition truss arm head and crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215711311U true CN215711311U (en) | 2022-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121478395.8U Active CN215711311U (en) | 2021-06-30 | 2021-06-30 | Multi-working-condition truss arm head and crane |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN215711311U (en) |
| WO (1) | WO2023274263A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023274263A1 (en) * | 2021-06-30 | 2023-01-05 | 湖南三一中型起重机械有限公司 | Multi-working-condition lattice jib head and crane |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202004017771U1 (en) * | 2004-11-16 | 2006-03-23 | Liebherr-Werk Ehingen Gmbh | crane boom |
| DE202007012764U1 (en) * | 2007-09-12 | 2009-02-12 | Liebherr-Werk Ehingen Gmbh | Jib crane, jib and intermediate piece |
| CN202296908U (en) * | 2011-10-09 | 2012-07-04 | 上海三一科技有限公司 | Hoisting mechanism for crawler crane and crawler crane |
| CN204211393U (en) * | 2014-10-23 | 2015-03-18 | 郑州宇通重工有限公司 | A kind of wind-powered electricity generation lifts special arm head |
| CN105584939B (en) * | 2014-10-23 | 2017-08-22 | 郑州宇通重工有限公司 | A kind of wind-powered electricity generation lifts special arm head |
| CN104591013B (en) * | 2014-12-25 | 2017-03-29 | 徐州重型机械有限公司 | A kind of multi-state auxiliary structure and the crane using the structure |
| CN205367536U (en) * | 2016-01-28 | 2016-07-06 | 徐州建机工程机械有限公司 | Swing crane and jib loading boom thereof |
| CN215711311U (en) * | 2021-06-30 | 2022-02-01 | 湖南三一中型起重机械有限公司 | Multi-working-condition truss arm head and crane |
-
2021
- 2021-06-30 CN CN202121478395.8U patent/CN215711311U/en active Active
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2022
- 2022-06-29 WO PCT/CN2022/102102 patent/WO2023274263A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023274263A1 (en) * | 2021-06-30 | 2023-01-05 | 湖南三一中型起重机械有限公司 | Multi-working-condition lattice jib head and crane |
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| Publication number | Publication date |
|---|---|
| WO2023274263A1 (en) | 2023-01-05 |
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