CN116443746A - Swing arm tower crane - Google Patents
Swing arm tower crane Download PDFInfo
- Publication number
- CN116443746A CN116443746A CN202310243875.3A CN202310243875A CN116443746A CN 116443746 A CN116443746 A CN 116443746A CN 202310243875 A CN202310243875 A CN 202310243875A CN 116443746 A CN116443746 A CN 116443746A
- Authority
- CN
- China
- Prior art keywords
- tower body
- arm
- tower
- working arm
- counterweight
- 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
Links
- 238000004378 air conditioning Methods 0.000 claims 2
- 238000004804 winding Methods 0.000 description 8
- 238000005452 bending Methods 0.000 description 6
- 238000013459 approach Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
Classifications
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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
- B66C23/72—Counterweights or supports for balancing lifting couples
- B66C23/74—Counterweights or supports for balancing lifting couples separate from jib
- B66C23/76—Counterweights or supports for balancing lifting couples separate from jib and movable to take account of variations of load or of variations of length of jib
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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
-
- 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
- B66C23/821—Bracing equipment for booms
- B66C23/826—Bracing equipment acting at an inclined angle to vertical and horizontal directions
- B66C23/828—Bracing equipment acting at an inclined angle to vertical and horizontal directions where the angle is adjustable
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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
- B66C23/84—Slewing gear
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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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention discloses a movable arm tower crane which comprises a tower body, a working arm, a balance arm and a counterweight system, wherein the tower body is arranged on the ground, one end of the working arm is connected to one end of the tower body far away from the ground, the other end of the working arm is provided with a hook, the hook is used for hanging a heavy object, one end of the working arm adjacent to the tower body is provided with a driving part, the driving part extends towards one side close to the tower body, the balance arm is connected to one end of the tower body far away from the ground, the balance arm and the working arm are positioned on two opposite sides of the tower body, the counterweight system comprises a rocker, a counterweight frame and a movable rod, the counterweight frame is used for accommodating a counterweight, the counterweight frame is in rotary connection with the balance arm through the rocker, one end of the movable rod is in rotary connection with the counterweight frame, and the other end of the movable rod is in rotary connection with one end of the driving part far away from the working arm. The technical scheme of the invention aims to simplify the balance structure of the movable arm tower crane.
Description
Technical Field
The invention relates to the technical field of construction engineering machinery, in particular to a movable arm tower crane.
Background
The tower crane is provided with the balancing weights for balancing the tower crane front and back so as to reduce bending moment born by the tower body and improve the stress of the tower body.
The counterweight setting mode of the movable arm tower crane is currently provided with a fixed type and a movable type, wherein the fixed type is to fixedly install the counterweight at the tail end of the balance arm, and the design principle is to enable the forward tilting bending moment born by the tower body in full-load working to be close to the idle load and the backward tilting bending moment born by the tower body in non-working state; the movable type balancing arm chord member is generally used as a track, a special balancing weight moving mechanism is arranged, and the position of the balancing weight is adjusted according to the change of the pitching amplitude of the movable arm tower crane.
These two modes have the disadvantages: for the fixed counterweight, no matter how large the working amplitude of the tower crane lifts, namely, no matter how much the forward tilting bending moment acts on the tower body changes, the backward tilting bending moment of the counterweight to the tower body is kept at a certain value, so that the tower body bears larger unbalanced moment, the unbalanced moment has larger fluctuation, the structure of the movable counterweight moving mechanism is complex, auxiliary power driving is needed, and the cost is higher.
Disclosure of Invention
The invention mainly aims to provide a movable arm tower crane, which aims to simplify the balance structure of the movable arm tower crane.
In order to achieve the above purpose, the movable arm tower crane provided by the invention comprises a tower body, a working arm, a balance arm and a counterweight system, wherein the tower body is arranged on the ground, one end of the working arm is connected to one end of the tower body far away from the ground, the other end of the working arm is provided with a hook, the hook is used for hanging a heavy object, one end of the working arm adjacent to the tower body is provided with a driving part, the driving part extends towards one side close to the tower body, the balance arm is connected to one end of the tower body far away from the ground, the balance arm and the working arm are positioned on two opposite sides of the tower body, the counterweight system comprises a rocker, a counterweight frame and a movable rod, the counterweight frame is used for accommodating the counterweight block, the counterweight frame is in rotary connection with the balance arm through the rocker, one end of the movable rod is in rotary connection with the counterweight frame, and the other end of the movable rod is in rotary connection with one end of the driving part far away from the working arm.
In an embodiment of the present invention, the counterweight system is provided with two rockers and two moving rods, the two rockers are correspondingly arranged at two sides of the counterweight frame and the counterweight arm, and the two moving rods are correspondingly arranged at two sides of the counterweight frame and are both rotatably connected with one end of the driving part away from the working arm.
In an embodiment of the present invention, the tower body includes a supporting tower body and a rotating tower body, the supporting tower body is disposed on the ground, the rotating tower body is rotatably connected with one end of the supporting tower body far away from the ground, the rotating tower body can rotate around the extending direction of the supporting tower body, the balance arm is fixedly connected with the rotating tower body, the working arm is rotatably connected with the rotating tower body, and the balance arm and the working arm are disposed on opposite sides of the rotating tower body.
In an embodiment of the present invention, a distance between the two moving rods is greater than a width of the swing tower, and the two moving rods bypass the swing tower to connect the driving part and the counterweight frame.
In an embodiment of the present invention, the support tower body includes a plurality of standard sections, and the plurality of standard sections are detachably connected, and the standard section adjacent to the rotary tower body is detachably connected with the rotary tower body.
In an embodiment of the invention, the movable arm tower crane is further provided with a jacking mechanism, the jacking mechanism is arranged at one end of the supporting tower body, which is close to the rotary tower body, an air cylinder is arranged in the jacking mechanism and is used for jacking the rotary tower body, and a guide rail is further arranged at one side of the jacking mechanism, which faces the working arm, and is used for receiving the standard section.
In an embodiment of the invention, the movable arm tower crane further comprises a driving device, the driving device comprises a rope collecting wheel, a pulley block and a connecting device, the rope collecting wheel is arranged on the balance arm, the pulley block is arranged at the top of the tower body, one end of the connecting device is fixedly wound on the rope collecting wheel, and the other end of the connecting device bypasses the pulley block and is rotationally connected with one end of the working arm far away from the tower body; wherein, receive the rope sheave and be used for releasing or retrieving connecting device.
In an embodiment of the invention, the connecting device comprises a pull rod and a cable, one end of the pull rod is rotatably connected with one end of the working arm far away from the tower body, one end of the cable is fixedly wound on the rope winding wheel, and the other end of the cable bypasses the pulley block and is connected with one end of the pull rod far away from the working arm.
In an embodiment of the invention, the tower body comprises a supporting tower body and a rotary tower body, wherein the supporting tower body is arranged on the ground, the rotary tower body is rotatably connected with one end, far away from the ground, of the supporting tower body, the pulley block is arranged at the top of the rotary tower body, and the cable extending from the rope collecting wheel is connected with the pull rod by bypassing the pulley block.
In one embodiment of the present invention, the pull rod includes a plurality of pull pieces, the plurality of pull pieces are detachably connected, and the number of the pull pieces is 2 to 7; and/or the length of the working arm is 30 meters to 60 meters.
According to the technical scheme, the counterweight system comprises a rocker, a counterweight frame and a moving rod, wherein the counterweight frame is rotationally connected with a counterweight arm through the rocker, and is rotationally connected with a driving part, close to a tower body, of a working arm through the moving rod. When the working arm is lifted, the weight at the hook is horizontally close to the tower body, the moment of the weight is shortened, the driving part at the other end far away from the hook is opposite to the movement direction of the hook, the driving part drives the counterweight frame through the moving rod, the counterweight frame rotates towards the direction close to the tower body relative to the counterweight arm through the rocker, the moment of the counterweight block in the counterweight frame is reduced, the change of the position of the counterweight driven by the rotation of the working arm is realized, an additional moving mechanism is not needed, and the balance structure of the movable arm tower crane is simplified.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a portion of an embodiment of a boom tower crane according to the present invention;
fig. 2 is a schematic structural view of an embodiment of a boom tower crane according to the present invention.
Reference numerals illustrate:
the achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
In the present invention, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout is meant to include three side-by-side schemes, for example, "a and/or B", including a scheme, or B scheme, or a scheme that is satisfied by both a and B. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
The invention provides a movable arm tower crane 100, wherein the movable arm tower crane 100 can be established at a cliff due to the small rotation radius of the movable arm tower crane 100.
In this embodiment of the present invention, the boom tower crane 100 includes a tower body 10, a working arm 20, a balance arm 30 and a counterweight system 40, the tower body 10 is disposed on the ground, one end of the working arm 20 is connected to an end of the tower body 10 far from the ground, the other end of the working arm 20 is provided with a hook 21, the hook 21 is used for hanging a weight, one end of the working arm 20 adjacent to the tower body 10 is provided with a driving portion 22, the driving portion 22 extends to a side close to the tower body 10, the balance arm 30 is connected to an end of the tower body 10 far from the ground, the balance arm 30 and the working arm 20 are located at opposite sides of the tower body 10, the counterweight system 40 includes a rocker 41, a counterweight frame 42 and a moving rod 43, the counterweight frame 42 is rotatably connected to the balance arm 30 through the rocker 41, one end of the moving rod 43 is rotatably connected to the counterweight frame 42, and the other end of the moving rod 43 is rotatably connected to an end of the driving portion 22 far from the working arm 20.
In the present invention, the counterweight system 40 includes a rocker 41, a counterweight frame 42 and a moving rod 43, so that the counterweight frame 42 is rotatably connected with the counterweight arm 30 through the rocker 41, and is rotatably connected with the driving portion 22 of the working arm 20 near the tower body 10 through the moving rod 43. When the working arm 20 is lifted, the weight at the hook 21 is horizontally moved toward the tower body 10, the moment of the weight is shortened, the driving part 22 at the other end far away from the hook 21 is opposite to the movement direction of the hook 21, the driving part 22 drives the counterweight frame 42 through the moving rod 43, the counterweight frame 42 rotates relative to the balance arm 30 through the rocker 41 toward the direction close to the tower body 10, the moment of the balancing weight in the counterweight frame 42 is reduced, the change of the position of the counterweight driven by the rotation of the working arm 20 is realized, an additional moving mechanism is not needed, and the balance structure of the movable arm tower crane 100 is simplified.
In this embodiment, the plane formed by the rotation of the working arm 20 relative to the tower body 10 is perpendicular to the ground on which the tower body 10 is mounted, when the working arm 20 rotates anticlockwise relative to the tower body 10, one end of the working arm 20 provided with the hook 21 rotates to lift, the hook 21 or the weight on the hook 21 approaches the tower body 10 in the horizontal direction, the forward tilting moment of the tower body 10 is reduced, one end of the working arm 20 provided with the driving part 22 is far away from the balance arm 30, the moving rod 43 connected with the driving part 22 is driven to rotate, the moving rod 43 further pulls the balance weight frame 42 to move towards the direction approaching the tower body 10 by taking the joint of the rocker 41 and the balance arm 30 as the center, the backward tilting moment of the tower body 10 is reduced, and in this embodiment, the rotation of the working arm 20 reduces the backward tilting moment of the tower body 10 while reducing the forward tilting moment of the tower body 10, so that the balance of the tower body 10 is realized without setting a mechanism for moving the balance weight system 40.
When the working arm 20 rotates clockwise relative to the tower body 10, the end of the working arm 20 provided with the hook 21 rotates downwards, the hook 21 or a weight on the hook 21 is far away from the tower body 10 in the horizontal direction, the forward tilting moment of the tower body 10 is increased, the end of the working arm 20 provided with the driving part 22 is close to the balance arm 30, the moving rod 43 rotationally connected with the driving part 22 is pushed, the moving rod 43 further pushes the balance weight frame 42 to move in the direction far away from the tower body 10 by taking the joint of the rocker 41 and the balance arm 30 as the center, and the backward tilting moment of the tower body 10 is also increased.
In this embodiment, since the weight frame 42 is used for accommodating the balancing weight, the weight frame 42 is provided with an upward opening, and the rocker 41 is connected with the weight frame 42 by rotation, so that the opening of the weight frame 42 always maintains an upward state during the rotation of the weight frame 42 relative to the balance arm 30, and the balancing weight is prevented from falling off.
In an embodiment of the present invention, the counterweight system 40 is provided with two rocking levers 41 and two moving levers 43, the rocking levers 41 are correspondingly arranged at two sides of the counterweight frame 42 and the counterweight arm 30, and the moving levers 43 are correspondingly arranged at two sides of the counterweight frame 42 and are both rotatably connected with one end of the driving part 22 away from the working arm 20.
In this embodiment, the two rockers 41 are correspondingly disposed on two sides of the counterweight frame 42 and the counterweight arm 30, so that the counterweight frame 42 is located under the counterweight arm 30, and when the counterweight frame 42 rotates around the joint of the rockers 41 and the counterweight arm 30, the counterweight frame 42 is always located in the same plane as the counterweight arm 30, i.e. the plane formed by the rotation of the counterweight frame 42 relative to the counterweight arm 30 and the plane formed by the rotation of the working arm 20 relative to the tower body 10 are the same plane, thereby maintaining the stability of the boom tower crane 100 in operation.
In this embodiment, the rocker 41 is rotatably connected with the counterweight frame 42 through a pin, and a baffle is arranged outside the pin to prevent the rocker 41 from separating from the counterweight frame 42.
In this embodiment, the rocker 41 is rotatably connected to the balance arm 30 through a pin, and a baffle is disposed outside the pin to prevent the rocker 41 from separating from the balance arm 30.
In this embodiment, the moving rod 43 is rotatably connected to the counterweight frame 42 through a pin, and a baffle is disposed outside the pin to prevent the moving rod 43 from separating from the counterweight frame 42.
In this embodiment, the moving rod 43 is rotatably connected to the driving part 22 through a pin, and a baffle is disposed outside the pin to prevent the moving rod 43 from being separated from the driving part 22.
In an embodiment of the present invention, the tower body 10 includes a supporting tower body 11 and a rotary tower body 12, the supporting tower body 11 is disposed on the ground, the rotary tower body 12 is rotatably connected to an end of the supporting tower body 11 far from the ground, the rotary tower body 12 can rotate around the extending direction of the supporting tower body 11, the balance arm 30 is fixedly connected to the rotary tower body 12, the working arm 20 is rotatably connected to the rotary tower body 12, and the balance arm 30 and the working arm 20 are located on opposite sides of the rotary tower body 12.
In this embodiment, the extending direction of the supporting tower 11 is perpendicular to the ground, the rotating surface formed by rotating the working arm 20 relative to the rotating tower 12 is perpendicular to the ground, and the rotating tower 12 rotates around the extending direction of the supporting tower 11 relative to the supporting tower 11.
In an embodiment of the present invention, the distance between the two moving rods 43 is greater than the width of the swing tower 12, and the two moving rods 43 bypass the swing tower 12 to connect the driving part 22 and the weight frame 42.
In this embodiment, two moving rods 43 respectively pass through two sides of the rotary tower body 12 to connect the driving portion 22 and the counterweight frame 42, so that when the driving portion 22 drives the counterweight frame 42 to move relative to the balance arm 30 through the moving rods 43, the moving rods 43 are prevented from being limited by the structure of the rotary tower body 12, and a space for avoiding the movement of the moving rods 43 is also prevented from being additionally arranged on the rotary tower body 12.
In an embodiment of the present invention, the supporting tower 11 includes a plurality of standard sections 111, and the plurality of standard sections 111 are detachably connected, and the standard section 111 adjacent to the rotary tower 12 is detachably connected to the rotary tower 12.
In this embodiment, the supporting tower 11 is assembled by a plurality of standard joints 111, the supporting tower 11 composed of a small number of standard joints 111 is set up on the ground, the rotary tower 12 is mounted on the top of the supporting tower 11, and then the height of the supporting tower 11 can be increased by lifting the rotary tower 12 and adding the standard joints 111 of the original supporting tower 11 and the rotary tower 12, so that the whole movable arm tower crane 100 can perform better construction.
In an embodiment of the present invention, the boom tower crane 100 is further provided with a jacking mechanism 50, the jacking mechanism 50 is disposed at one end of the supporting tower body 11 near the revolving tower body 12, an air cylinder is disposed in the jacking mechanism 50, the air cylinder is used for jacking the revolving tower body 12, a guide rail 51 is further disposed at a side of the jacking mechanism 50 facing the working arm 20, and the guide rail 51 is used for receiving the standard joint 111.
In this embodiment, the lifting mechanism 50 includes a fixed portion and a movable portion, the fixed portion is detachably connected with the supporting tower 11, a guide rail 51 is disposed on the movable portion, an air cylinder is disposed between the fixed portion and the movable portion, so that the fixed portion and the movable portion can stretch along the extending direction of the supporting tower 11, if the height of the supporting tower 11 is to be increased, the standard section 111 is lifted onto the guide rail 51, the fixed portion is connected with the supporting tower 11, the movable portion is connected with the bottom of the rotating tower 12, the guide rail 51 is parallel to the bottom of the rotating tower 12, the connection between the rotating tower 12 and the supporting tower 11 is released, the movable portion pushes the rotating tower 12 to move upwards through the air cylinder, the distance between the rotating tower 12 and the supporting tower 11 is greater than the length of one standard section 111, the standard section 111 on the guide rail 51 is placed into the movable portion, the top of the original supporting tower 11 is fixedly connected, the rotating tower 12 is dropped onto the newly-installed standard section 111, and the extension of one standard section 111 of the supporting tower 11 is completed after fixing.
In an embodiment of the present invention, the boom tower crane 100 further includes a driving device 60, the driving device 60 includes a rope winding wheel 61, a pulley block 62, and a connecting device 63, the rope winding wheel 61 is disposed on the balance arm 30, the pulley block 62 is disposed on the top of the tower body 10, one end of the connecting device 63 is fixedly wound on the rope winding wheel 61, and the other end bypasses the pulley block 62 and is rotatably connected with one end of the working arm 20 far away from the tower body 10; wherein the sheave 61 is used for releasing or retracting the connecting device 63.
In this embodiment, the rope winding wheel 61 tightens the connection device 63 to rotate the working arm 20 anticlockwise, the driving part 22 on the working arm 20 also rotates anticlockwise to drive the counterweight frame 42 to approach the tower body 10, so that the load moment on the working arm 20 and the counterweight arm 30 is reduced simultaneously, and the moving amplitude and speed of the counterweight frame 42 can be changed by adjusting the length of the rocker 41 or the moving rod 43, so that the front-back tilting bending moment of the whole movable arm tower crane 100 is the same, and the balance of the movable arm tower crane 100 is maintained.
In an embodiment of the present invention, the connection device 63 includes a pull rod 631 and a cable 632, one end of the pull rod 631 is rotatably connected to an end of the working arm 20 remote from the tower body 10, one end of the cable 632 is fixedly wound on the rope winding wheel 61, and the other end of the cable 632 bypasses the pulley block 62 and is connected to an end of the pull rod 631 remote from the working arm 20.
In this embodiment, one end of the pull rod 631 is rotatably connected to the working arm 20, the other end of the pull rod 631 is provided with a fixed pulley, two rope receiving pulleys 61 of the driving device 60 are arranged on the balance arm 30, one end of a cable 632 is wound on one of the rope receiving pulleys 61, the other end of the cable 632 is wound around the pulley block 62 at the top of the tower body 10 and passes through the fixed pulley on the pull rod 631, then the cable passes through the pulley block 62 at the top of the tower body 10, and finally is wound on the other rope receiving pulley 61. Thus, both the rope winding wheels 61 can control the lifting and lowering of the arm 20, and both the rope winding wheels 61 can work together to increase the moving speed of the arm 20.
In an embodiment of the present invention, the tower body 10 includes a supporting tower body 11 and a rotary tower body 12, the supporting tower body 11 is disposed on the ground, the rotary tower body 12 is rotatably connected to an end of the supporting tower body 11 far away from the ground, the pulley block 62 is disposed at the top of the rotary tower body 12, and the cable 632 extending from the rope collecting wheel 61 is connected to the pull rod 631 by bypassing the pulley block 62.
In an embodiment of the present invention, the pull rod 631 includes a plurality of pull members 631a, the plurality of pull members 631a are detachably connected, and the number of the pull members 631a is 2 to 7; and/or the length of the working arm 20 is 30 meters to 60 meters.
In this embodiment, when the length of the working arm 20 is 30m, the 2 pull pieces 631a are used to form the pull rod 631 to be connected with the working arm 20;
when the length of the working arm 20 is 40m, 4 pull pieces 631a are adopted to form a pull rod 631 to be connected with the working arm 20;
when the length of the working arm 20 is 50m, the 6 pull pieces 631a are adopted to form a pull rod 631 to be connected with the working arm 20;
when the length of the arm 20 is 60m, 7 pull members 631a are used to form the pull rod 631 to connect with the arm 20.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (10)
1. A boom tower crane (100), characterized in that the boom tower crane (100) comprises:
the tower body (10), the tower body (10) locates on the ground;
the device comprises a working arm (20), wherein one end of the working arm (20) is connected to one end of a tower body (10) far away from the ground, a hook (21) is arranged at the other end of the working arm (20), the hook (21) is used for hanging a heavy object, a driving part (22) is arranged at one end of the working arm (20) close to the tower body (10), and the driving part (22) extends to one side close to the tower body (10);
the balance arm (30) is connected to one end, far away from the ground, of the tower body (10), and the balance arm (30) and the working arm (20) are positioned on two opposite sides of the tower body (10); a kind of electronic device with high-pressure air-conditioning system
The counterweight system (40), the counterweight system (40) includes rocker (41), counterweight frame (42) and movable rod (43), counterweight frame (42) are used for holding the balancing weight, counterweight frame (42) pass through rocker (41) with balance arm (30) rotate and are connected, the one end of movable rod (43) with counterweight frame (42) rotate and are connected, the other end with drive portion (22) are kept away from the one end rotation of operation arm (20) is connected.
2. The boom tower crane (100) according to claim 1, wherein the counterweight system (40) is provided with two rocking bars (41) and two moving rods (43), the two rocking bars (41) are correspondingly arranged on two sides of the counterweight frame (42) and the counterweight arm (30), and the two moving rods (43) are correspondingly arranged on two sides of the counterweight frame (42) and are both in rotary connection with one end of the driving part (22) away from the working arm (20).
3. The boom tower crane (100) according to claim 2, wherein the tower body (10) comprises a supporting tower body (11) and a rotary tower body (12), the supporting tower body (11) is arranged on the ground, the rotary tower body (12) is rotatably connected with one end of the supporting tower body (11) far away from the ground, the rotary tower body (12) can rotate around the extending direction of the supporting tower body (11), the balance arm (30) is fixedly connected with the rotary tower body (12), the operation arm (20) is rotatably connected with the rotary tower body (12), and the balance arm (30) and the operation arm (20) are positioned on two opposite sides of the rotary tower body (12).
4. A boom tower crane (100) according to claim 3, wherein the distance between two of said moving levers (43) is larger than the width of said swing tower (12), and wherein two of said moving levers (43) bypass said swing tower (12) to connect said driving portion (22) and said counterweight frame (42).
5. A boom tower crane (100) according to claim 3, wherein said support tower (11) comprises a plurality of standard segments (111), a plurality of said standard segments (111) being detachably connected, said standard segments (111) being adjacent to said swivel tower (12) being detachably connected to said swivel tower (12).
6. The movable arm tower crane (100) according to claim 5, wherein the movable arm tower crane (100) is further provided with a lifting mechanism (50), the lifting mechanism (50) is arranged at one end of the supporting tower body (11) close to the rotary tower body (12), an air cylinder is arranged in the lifting mechanism (50) and used for lifting the rotary tower body (12), and a guide rail (51) is further arranged at one side of the lifting mechanism (50) facing the working arm (20), and the guide rail (51) is used for bearing the standard section (111).
7. The boom tower crane (100) according to any of claims 1 to 6, wherein said boom tower crane (100) further comprises a drive means (60), said drive means (60) comprising:
a sheave (61), the sheave (61) being provided on the balance arm (30);
the pulley block (62) is arranged at the top of the tower body (10); a kind of electronic device with high-pressure air-conditioning system
The connecting device (63) is characterized in that one end of the connecting device (63) is fixedly wound on the rope collecting wheel (61), and the other end of the connecting device bypasses the pulley block (62) and is rotatably connected with one end, far away from the tower body (10), of the working arm (20);
wherein the sheave (61) is used for releasing or retracting the connecting device (63).
8. The boom tower (100) according to claim 7, wherein said connecting means (63) comprises:
one end of the pull rod (631) is rotatably connected with one end of the working arm (20) far away from the tower body (10); and
and one end of the cable (632) is fixedly wound on the rope collecting wheel (61), and the other end of the cable (632) bypasses the pulley block (62) and is connected with one end of the pull rod (631) away from the working arm (20).
9. The movable arm tower crane (100) according to claim 8, wherein the tower body (10) comprises a supporting tower body (11) and a rotary tower body (12), the supporting tower body (11) is arranged on the ground, the rotary tower body (12) is rotatably connected with one end, far away from the ground, of the supporting tower body (11), the pulley block (62) is arranged at the top of the rotary tower body (12), and the cable (632) extending from the rope collecting wheel (61) is connected with the pull rod (631) by bypassing the pulley block (62).
10. The boom tower crane (100) according to claim 8, wherein the pull rod (631) comprises a plurality of pull members (631 a), the plurality of pull members (631 a) are detachably connected, and the number of the pull members (631 a) is 2 to 7;
and/or the length of the working arm (20) is 30 meters to 60 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310243875.3A CN116443746A (en) | 2023-03-14 | 2023-03-14 | Swing arm tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310243875.3A CN116443746A (en) | 2023-03-14 | 2023-03-14 | Swing arm tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116443746A true CN116443746A (en) | 2023-07-18 |
Family
ID=87122888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310243875.3A Pending CN116443746A (en) | 2023-03-14 | 2023-03-14 | Swing arm tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116443746A (en) |
-
2023
- 2023-03-14 CN CN202310243875.3A patent/CN116443746A/en active Pending
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