CN217708666U - Foldable tower crane balance arm - Google Patents
Foldable tower crane balance arm Download PDFInfo
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- CN217708666U CN217708666U CN202221472157.0U CN202221472157U CN217708666U CN 217708666 U CN217708666 U CN 217708666U CN 202221472157 U CN202221472157 U CN 202221472157U CN 217708666 U CN217708666 U CN 217708666U
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- support frame
- counterweight
- balance arm
- tower crane
- weight
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Abstract
A foldable tower crane balance arm relates to the field of tower cranes. This folding tower machine balance arm includes that one end is used for articulating in the counter weight frame of the support frame other end respectively with support frame that tower machine rotation mechanism is connected and two, and every counter weight frame all is connected with a plurality of detachable balancing weights, and two counter weight frames are configured to can be followed the horizontal plane and are close to each other or keep away from the direction rotation each other in order to remove to with the support frame collineation or laminate in the support frame both sides respectively. The application provides a folding tower machine balance arm can be followed the stable rotation of horizontal plane and fold the balance arm in order to reduce the stress surface to carry out the tower machine in strong wind weather and keep out the wind operation, reduce the incident that appears under the bad weather.
Description
Technical Field
The application relates to the field of tower cranes, in particular to a foldable tower crane balance arm.
Background
The balance arm of the existing self-elevating tower crane is not foldable, the wind sheltering measure in windy weather is to loosen the swing mechanism of the tower crane to brake, the swing mechanism of the tower crane drives two arms to rotate along with the wind, and the measure still has certain potential safety hazard in windy weather.
SUMMERY OF THE UTILITY MODEL
An object of this application is to provide a folding tower machine balance arm, it can follow the stable rotation of horizontal plane and fold balance arm in order to reduce the stress surface to carry out the operation of tower machine wind-sheltering in strong wind weather, reduce the incident that appears under the bad weather.
The embodiment of the application is realized as follows:
the embodiment of the application provides a folding tower machine balance arm, it includes that one end is used for articulating in the counterweight housing of the support frame other end respectively with support frame and two that tower machine rotation mechanism is connected, and every counterweight housing all is connected with a plurality of detachable balancing weights, and two counterweight housings are configured into and can be followed the horizontal plane and are close to each other or keep away from the direction rotation each other in order to remove to with the support frame collineation or laminate in the support frame both sides respectively.
In some optional embodiments, the support frame is hinged with a rotating oil cylinder for driving the two counterweight frames to rotate along the direction that the horizontal plane is close to or away from each other, an oil cylinder rod of the rotating oil cylinder is hinged with two first connecting rods, the two first connecting rods are respectively hinged with one end of a T-shaped second connecting rod, the middle parts of the two second connecting rods are respectively hinged with the two sides of the support frame, and the other ends of the two second connecting rods are respectively hinged with the two counterweight frames through a third connecting rod.
In some optional embodiments, a reinforcing rod is hinged between each of two sides of the support frame and the two weight frames.
In some optional embodiments, a plurality of first ear hole plates are respectively connected to the side parts of the two weight racks, and when the two weight racks rotate along the horizontal direction to be in line with the support frame in the direction of approaching each other, the ear holes of one first ear hole plate on each weight rack and the ear holes of one first ear hole plate on the other weight rack are arranged in an up-and-down alignment manner.
In some optional embodiments, at least one second ear hole plate is respectively connected to one end of each of the two weight racks close to the support frame, and the support frame is connected with third ear hole plates corresponding to the second ear hole plates one by one; when the two counterweight brackets rotate to be collinear with the supporting frame along the direction of mutual approaching of the horizontal surface, each second ear hole plate is arranged in an up-and-down alignment way with the ear hole of the corresponding third ear hole plate.
In some alternative embodiments, the counterweight is attached to an end of the weight frame remote from the support frame.
In some optional embodiments, the weight frame is provided with a mounting hole penetrating through the upper and lower surfaces thereof, the weight block comprises an upper weight portion and a lower weight portion connected with the top of the middle portion of the bottom surface of the upper weight portion, and the lower weight portion is configured to pass through the mounting hole and enable the two sides of the top surface of the weight frame to respectively support the two sides of the bottom surface of the upper weight portion.
The beneficial effect of this application is: the application provides a folding tower machine balance arm includes that one end is used for articulating in the counterweight housing of the support frame other end respectively with support frame and two that tower machine rotation mechanism is connected, and every counterweight housing all is connected with a plurality of detachable balancing weights, and two counterweight housings are configured to can be followed the horizontal plane and are close to each other or keep away from the direction rotation each other in order to remove to with the support frame collineation or laminate in the support frame both sides respectively. The application provides a folding tower machine balance arm can be followed the stable rotation of horizontal plane and fold the balance arm in order to reduce the stress surface to carry out the tower machine in strong wind weather and keep out the wind operation, reduce the incident that appears under the bad weather.
Drawings
To more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a schematic structural view of a tower crane swing mechanism of a tower crane, in which a foldable tower crane balance arm provided in the embodiment of the present application is mounted;
fig. 2 is a schematic structural diagram of a first view angle of a first use state of a foldable tower crane balance arm according to the embodiment of the present application;
fig. 3 is a schematic structural diagram of a second view angle of a first use state of a foldable tower crane balance arm provided in the embodiment of the present application;
fig. 4 is a schematic structural diagram of a third viewing angle of a first use state of a foldable tower crane balance arm provided in the embodiment of the present application;
fig. 5 is a schematic structural diagram of a first view angle of a second use state of a foldable tower crane balance arm provided in the embodiment of the present application;
fig. 6 is a schematic structural diagram of a second view angle of a second use state of the foldable tower crane balance arm provided in the embodiment of the present application;
fig. 7 is a schematic structural diagram of a first view angle of a third use state of a foldable tower crane balance arm according to the embodiment of the present application;
fig. 8 is a schematic structural diagram of a second view angle of a third use state of the foldable tower crane balance arm provided in the embodiment of the present application.
In the figure: 100. a tower crane slewing mechanism; 110. a support frame; 120. a counterweight frame; 130. a balancing weight; 131. an upper counterweight portion; 132. a lower weight portion; 140. rotating the oil cylinder; 150. a first link; 160. a second link; 170. a third link; 180. a reinforcing rod; 190. a first ear-hole plate; 200. a second ear-hole plate; 210. a third ear hole plate; 220. mounting holes; 230. and locking the bolt.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. 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 application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that the product of the application is conventionally placed in use, and are used only for convenience of describing the present application and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it should also be noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and can include, for example, fixed connections, detachable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.
The features and properties of the foldable tower crane balance arm of the present application are further described in detail in the following with reference to the embodiments.
As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, and fig. 8, an embodiment of the present application provides a foldable tower crane balance arm, which includes a supporting frame 110 having one end for connecting with a tower crane swing mechanism 100, and two weight brackets 120 respectively hinged to the other end of the supporting frame 110, each weight bracket 120 is connected with 7 detachable weight blocks 130, and the two weight brackets 120 are configured to be rotatable along a horizontal plane in a direction approaching to or departing from each other so as to move to be collinear with the supporting frame 110 or respectively attached to two sides of the supporting frame 110. The supporting frame 110 is hinged with a rotating oil cylinder 140 for driving the two counterweight frames 120 to rotate along the horizontal direction in the direction of approaching to or departing from each other, the oil cylinder rod of the rotating oil cylinder 140 is hinged with two first connecting rods 150, the two first connecting rods 150 are respectively hinged with one end of a T-shaped second connecting rod 160, the middle parts of the two second connecting rods 160 are respectively hinged with the two sides of the supporting frame 110, and the other ends of the two second connecting rods 160 are respectively hinged with the two counterweight frames 120 through third connecting rods 170; reinforcing rods 180 are respectively hinged between two sides of the supporting frame 110 and the two weight frames 120. The side parts of the two weight racks 120 are respectively connected with 3 first ear hole plates 190, one ends of the two weight racks 120 close to the support frame 110 are respectively connected with 1 second ear hole plate 200, one ends of the support frame 110 close to the weight racks 120 are connected with 2 third ear hole plates 210, and the foldable tower crane balance arm further comprises 5 locking bolts 230; when the two weight racks 120 are rotated along the direction of approaching each other along the horizontal plane to be collinear with the supporting rack 110, the ear holes of one first ear hole plate 190 on each weight rack 120 and one first ear hole plate 190 on the other weight rack 120 are aligned up and down, and the ear holes of 2 second ear hole plates 200 and the ear holes of 2 third ear hole plates 210 are aligned up and down respectively, 3 locking bolts 230 are respectively used for penetrating and connecting three pairs of ear holes of the first ear hole plates 190 aligned up and down, and 2 locking bolts 230 are respectively used for penetrating the ear holes of two second ear hole plates 200 and the corresponding third ear hole plates 210. The counterweight 130 is connected to one end of the counterweight frame 120 far away from the supporting frame 110, the counterweight frame 120 is provided with a mounting hole 220 penetrating through the upper and lower surfaces thereof, the counterweight 130 comprises an upper counterweight portion 131 and a lower counterweight portion 132 having a top portion connected with the middle portion of the bottom surface of the upper counterweight portion 131, and the lower counterweight portion 132 is configured to penetrate through the mounting hole 220 and enable two sides of the top surface of the counterweight frame 120 to respectively support two sides of the bottom surface of the upper counterweight portion 131.
When it is predicted that a windward weather needs to be avoided, the oil cylinder rod of the rotating oil cylinder 140 is controlled to extend to drive the two first connecting rods 150 to extend, the two first connecting rods 150 respectively drive the two connected second connecting rods 160 to rotate relative to the middle parts hinged to the two sides of the supporting frame 110 when extending, so that the two third connecting rods 170 hinged to the two second connecting rods 160 drive the two counterweight frames 120 to rotate along the horizontal plane in the direction away from each other so as to move to be respectively attached to the two sides of the supporting frame 110, so that the two counterweight frames 120 rotate along the horizontal plane and are folded to be attached to the two sides of the supporting frame 110, the windward area of the tower crane balance arm is effectively reduced, the thrust on the balance arm in the windward weather is reduced, safety accidents in severe weather are avoided, when the windward weather needs to be repeated, the oil cylinder rod of the rotating oil cylinder 140 is controlled to retract to drive the two first connecting rods 150 to retract, the two first connecting rods 150 respectively drive the middle parts hinged to the second connecting rods 160 in the direction, and the middle parts hinged to move along the horizontal plane, and the direction of the two counterweight frames 110 when the two connecting rods 150 need to be reset, so as to drive the two connecting rods 160 to move to be attached to the two supports 110 in the horizontal plane in the direction, and to be attached to the horizontal plane when the two ends of the two counterweight frames 110 when the operation in the windward weather needs to be repeated.
Wherein, the adjacent sides of the two weight racks 120 are respectively connected with 3 first ear hole plates 190, one ends of the two weight racks 120 close to the support frame 110 are respectively connected with 1 second ear hole plate 200, and one end of the support frame 110 close to the weight racks 120 is connected with 2 third ear hole plates 210; when the two weight racks 120 are rotated along the direction of approaching each other along the horizontal plane to be collinear with the supporting frame 110, the ear holes of the first ear hole plate 190 on each weight rack 120 and the ear holes of the first ear hole plate 190 on the other weight rack 120 are aligned up and down, and the ear holes of the second ear hole plate 200 and the ear holes of the third ear hole plate 210 are aligned up and down respectively, at this time, an operator can pass 3 locking bolts 230 through and connect three pairs of ear holes on the first ear hole plate 190 aligned up and down and fix the locking bolts with nuts, and pass 2 locking bolts 230 through and fix the ear holes on the second ear hole plate 200 and the corresponding third ear hole plate 210 with nuts, so as to fix the two weight racks 120 together, fix the two weight racks 120 and the supporting frame 110 together for counterweight operation, and remove the locking bolts 230 to release the fixation between the two weight racks 120 and the supporting frame 110 when wind shielding operation is required.
In addition, the weight frame 120 is provided with a mounting hole 220 penetrating through the upper and lower surfaces thereof, the counterweight 130 comprises an upper counterweight part 131 and a lower counterweight part 132 having a top connected to the middle of the bottom surface of the upper counterweight part 131, the lower counterweight part 132 is configured to pass through the mounting hole 220 and enable both sides of the top surface of the weight frame 120 to support both sides of the bottom surface of the upper counterweight part 131, when the counterweight 130 is installed by an operator, the counterweight 130 is lifted up and inserted into the mounting hole 220 from top to bottom, so that both sides of the top surface of the weight frame 120 are respectively used for supporting both sides of the bottom surface of the upper counterweight part 131 while the lower counterweight part 132 passes through the mounting hole 220, thereby facilitating the increase and decrease of the number of the counterweight 130 to adjust the counterweight size.
The embodiments described above are some, but not all embodiments of the present application. The detailed description of the embodiments of the present application is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. 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 application.
Claims (7)
1. The foldable tower crane balance arm is characterized by comprising a support frame and two counterweight frames, wherein one end of the support frame is used for being connected with a tower crane swing mechanism, the two counterweight frames are respectively hinged to the other end of the support frame, each counterweight frame is connected with a plurality of detachable counterweight blocks, and the two counterweight frames are configured to be capable of rotating along the direction that the horizontal plane is close to or away from each other so as to move to be collinear with the support frame or respectively attached to two sides of the support frame.
2. The foldable tower crane balance arm according to claim 1, wherein the support frame is hinged with a rotating cylinder for driving the two counterweight frames to rotate along the direction that the horizontal surfaces approach to or depart from each other, a cylinder rod of the rotating cylinder is hinged with two first connecting rods, the two first connecting rods are respectively hinged with one end of a T-shaped second connecting rod, the middle parts of the two second connecting rods are respectively hinged with the two sides of the support frame, and the other ends of the two second connecting rods are respectively hinged with the two counterweight frames through a third connecting rod.
3. The foldable tower crane balance arm according to claim 1, wherein reinforcing rods are hinged between two sides of the supporting frame and the two counterweight frames respectively.
4. The foldable tower crane balance arm according to claim 1, wherein a plurality of first ear hole plates are respectively connected to the side parts of the two counterweight brackets; when the two weight brackets rotate to be collinear with the supporting frame along the direction that the horizontal surfaces approach each other, the ear holes of the first ear hole plate on one weight bracket and the ear holes of the first ear hole plate on the other weight bracket are vertically aligned.
5. The foldable tower crane balance arm according to claim 4, wherein one end of each of the two counterweight brackets close to the support frame is connected with at least one second ear hole plate, and the support frame is connected with third ear hole plates corresponding to the second ear hole plates one to one; two the weight carrier along the horizontal plane to the direction of being close to each other rotate to with when the support frame collineation, make every the second ear hole board all with correspond the ear hole of third ear hole board aligns from top to bottom arranges.
6. The foldable tower crane balance arm as claimed in claim 1, wherein said counterweight is connected to an end of said counterweight frame remote from said support frame.
7. The foldable tower crane balance arm as claimed in claim 6, wherein the weight frame is provided with a mounting hole penetrating through the upper and lower surfaces thereof, the weight block comprises an upper weight portion and a lower weight portion having a top portion connected to the middle portion of the bottom surface of the upper weight portion, the lower weight portion is configured to pass through the mounting hole and make the two sides of the top surface of the weight frame support the two sides of the bottom surface of the upper weight portion respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221472157.0U CN217708666U (en) | 2022-06-13 | 2022-06-13 | Foldable tower crane balance arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221472157.0U CN217708666U (en) | 2022-06-13 | 2022-06-13 | Foldable tower crane balance arm |
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| Publication Number | Publication Date |
|---|---|
| CN217708666U true CN217708666U (en) | 2022-11-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221472157.0U Active CN217708666U (en) | 2022-06-13 | 2022-06-13 | Foldable tower crane balance arm |
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| CN (1) | CN217708666U (en) |
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- 2022-06-13 CN CN202221472157.0U patent/CN217708666U/en active Active
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