CN218088688U - Counterweight system and tower crane - Google Patents
Counterweight system and tower crane Download PDFInfo
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- CN218088688U CN218088688U CN202222449271.8U CN202222449271U CN218088688U CN 218088688 U CN218088688 U CN 218088688U CN 202222449271 U CN202222449271 U CN 202222449271U CN 218088688 U CN218088688 U CN 218088688U
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- counterweight
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- 230000007246 mechanism Effects 0.000 claims description 11
- 238000004804 winding Methods 0.000 claims 1
- 238000005452 bending Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The utility model relates to a tower machine field discloses a balanced heavy system and tower crane, and this balanced heavy system includes the cantilever crane, the cantilever crane includes jib loading boom and balance arm, install fixed balanced heavy on the balance arm, install the removal balanced heavy on the cantilever crane, remove the balanced heavy and install the guide remove the gyro wheel that balanced heavy removed, the cantilever crane is formed with and is used for remove the passageway that balanced heavy walked, remove balanced heavy and be connected with drive remove balanced heavy the jib loading boom with reciprocating motion on the balance arm. The utility model discloses a remove balanced heavy system makes the removal scope of removing balanced heavy wider, can adjust tower machine head moment of flexure more in a flexible way relatively.
Description
Technical Field
The utility model relates to a tower machine specifically, relates to a counterweight system. In addition, still relate to a tower crane.
Background
The tower crane is a common hoisting device in the current building construction process, and the structure of the tower crane is that a balance arm, a crane boom and an operation room are arranged on a tower body, a trolley and a lifting hook are arranged on the crane boom, the height of the tower crane is generally higher, and the tower crane has higher requirements on the stability of the tower crane.
The existing tower crane generally needs to fix the balance weight at the tail part of the balance arm, and in order to reduce the head bending moment of the tower crane, a small number of tower cranes can also set a movable balance weight on the balance arm. Specifically, a balance arm lower chord is used as a running guide rail, an amplitude-variable trolley is mounted on the balance arm lower chord, a movable counterweight is hung on the amplitude-variable trolley, and the position of the movable counterweight is changed by the fact that the amplitude-variable trolley runs back and forth on the balance arm lower chord.
However, the ability of this design to adjust the tower head bending moment is relatively limited.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a counterweight system is provided, this counterweight system makes the removal scope of removing the counterweight wider, can adjust tower machine head moment of flexure more in a flexible way relatively.
The utility model discloses the technical problem who still solves provides a tower crane, and this tower crane's removal balanced heavy system makes the removal scope of removing balanced heavy wider, can adjust tower machine head moment of flexure more in a flexible way relatively.
In order to solve the technical problem, an aspect of the present invention provides a counterweight system, including the cantilever crane, the cantilever crane includes jib loading boom and balance arm, install fixed counterweight on the balance arm, install the removal counterweight on the cantilever crane, the guide is installed to the removal counterweight the gyro wheel that the removal counterweight removed, the cantilever crane is formed with and is used for the passageway that the removal counterweight passed, the removal counterweight is connected with drive mechanism to can drive the removal counterweight is in the jib loading boom with reciprocating motion on the balance arm.
Optionally, a passage for the movable counterweight to pass through is formed at the upper part of the arm support.
Furthermore, the arm support is of a truss structure, the truss structure comprises an upper truss structure and a lower truss structure which are arranged up and down, the channel is formed in the upper truss structure, the upper truss structure comprises two upper chords which are arranged in parallel, a lower cover plate is arranged at the bottoms of the upper chords, flange plates which extend inwards from the two lower cover plates form tracks which are matched with the rollers in a relatively moving mode, and the rollers are symmetrically arranged on the left side and the right side of the movable balance weight.
Furthermore, the upper truss structure and the lower truss structure are connected through a pin.
Specifically, drive mechanism includes hoist engine, first assembly pulley and second assembly pulley, first assembly pulley is installed on the jib loading boom, the second assembly pulley is installed on the balance arm, the hoist engine is walked around through a haulage rope first assembly pulley with the front end of removal balanced heavy is connected, just the hoist engine is walked around through another haulage rope the second assembly pulley with the rear end of removal balanced heavy is connected, so as to make the hoist engine roll-up is one when the haulage rope synchronous release another haulage rope, thereby the drive remove balanced heavy removal.
More specifically, the first pulley block comprises a first pulley and a second pulley, the first pulley and the second pulley are mounted inside the upper truss structure of the crane boom, one end of one traction rope is connected with the winch, and the other end of the traction rope sequentially bypasses the second pulley and the first pulley to be connected with the front end of the movable counterweight; the second pulley block comprises a third pulley and a fourth pulley, the third pulley and the fourth pulley are installed in the upper truss structure of the balance arm, one end of the other traction rope is connected with the winch, and the other end of the other traction rope sequentially bypasses the fourth pulley and the third pulley and is connected with the rear end of the movable balance weight.
Optionally, the front end and the rear end of the movable counterweight are respectively provided with a mounting seat for connecting with the traction rope.
Optionally, a diagonal brace is provided within the lower truss structure.
Optionally, the mobile counterweight comprises a plurality of split counterweight blocks connected in series.
The utility model discloses another aspect provides a tower crane, is provided with any one of above-mentioned technical scheme removal counterweight system.
Through the technical scheme, the beneficial effects of the utility model are as follows:
the utility model discloses set up track and drive mechanism, under drive mechanism's drive, can make the removal balanced heavy removal along the rail mobile to reciprocating motion on jib loading boom and balance arm, the removal scope of removing balanced heavy is wider, thereby adjusts the relative broad of scope of tower machine front end head portion moment of flexure.
Other features and advantages of the present invention will be described in detail in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of a mobile counterweight system according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is a partial enlarged view of portion B of FIG. 1;
FIG. 4 is a schematic view of the structure of FIG. 2 taken along direction C;
fig. 5 is a schematic structural diagram of a movable counterweight according to an embodiment of the present invention.
Description of the reference numerals
1 boom 2 balance arm
3 fixed counterweight and 4 mobile counterweight
41 gyro wheel 42 mount pad
51 upper chord 52 lower cover plate
53 round pin axle 54 diagonal brace
6 winch 71 first pulley
72 second pulley 73 third pulley
74 fourth pulley
Detailed Description
The following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings, and it should be understood that the embodiments described herein are merely for purposes of illustration and explanation, and the scope of the present invention is not limited to the following embodiments.
In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; either directly or indirectly through intervening media, either internally or in any combination thereof. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Furthermore, the terms "first," "second," "third," "fourth," etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit indication of the number of technical features indicated, and therefore, the features defined as "first," "second," "third," "fourth," etc. may explicitly or implicitly include one or more of the features described.
In the description of the present invention, it should be understood that the orientation term is based on the orientation of the counterweight system in the use state, and the use orientation is substantially consistent with the orientation of the tower crane in the use state, for convenience of description, the term "front and back" refers to the front and back direction of the tower crane in the use state, and the term "up and down" refers to the up and down direction of the tower crane itself, for example, referring to fig. 1, the boom 1 is located in front of the counterweight arm 2, referring to fig. 4, the upper truss structure is located above the lower truss structure; the orientations and positional relationships shown in the drawings are for convenience in describing the invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
As shown in fig. 1 to 5, the utility model provides a counterweight system, including the cantilever crane, the cantilever crane includes jib loading boom 1 and balance arm 2, install fixed counterweight 3 on the balance arm 2, install mobile counterweight 4 on the cantilever crane, mobile counterweight 4 installs the gyro wheel 41 that is used for guiding mobile counterweight 4 to remove, mobile counterweight 4 is connected with the drive mechanism, the drive mechanism is used for driving mobile counterweight 4 along track rail motion, the cantilever crane is formed with and is used for mobile counterweight 4 to pass the passageway, thereby realize mobile counterweight 4 at jib loading boom 1 with balance arm 2 on reciprocating motion.
Typically, the boom is mounted on the tower body of a tower crane, which divides the boom into two parts, a boom 1 and a balance arm 2. In some applications of large and even ultra-large tower cranes (for example, applied to wind power and nuclear power facilities), especially in application of walking (for example, crawler type) tower cranes, the weights of the balance weights for matching with the hoisting loads on the hoisting and balance arm sides are large, and in the hoisting process of the tower crane, the moment change on the hoisting arm side is large, and the moment acting on the tower body is also large. Under the condition of normal hoisting, the movable balance weight 4 can be moved to different positions according to different working conditions, so that the arm support does not lift, for example, when the hoisting moment is smaller than the moment acted on the arm support by the fixed balance weight, the movable balance weight 4 can be moved to the crane arm, so that the arm support does not lift, or when the hoisting moment is larger than the moment acted on the arm support by the fixed balance weight, the movable balance weight 4 can be moved to the balance arm, so that the arm support does not lift.
In the technical scheme, the traction mechanism is arranged, so that the movable balance weight 4 can be driven to move, the track extends on the crane arm 1 and the balance arm 2, the movable balance weight 4 can reciprocate on the crane arm 1 and the balance arm 2, and the adjustment range of the head bending moment of the tower crane is relatively more flexible.
In the embodiment of the present invention, as shown in fig. 4, the track is disposed on the arm support, the roller 41 is disposed on the movable balance weight 4, and the movable balance weight 4 can move on the crane arm 1 and the balance arm 2 by the cooperation of the track and the roller 41.
Generally, for the arrangement of the passage on the arm support for the moving balance weight 4 to pass through, a passage may be arranged at the upper part of the arm support for the moving balance weight 4 to pass through. Specifically, as shown in fig. 4, the boom is a truss structure, the truss structure includes an upper truss structure and a lower truss structure, the upper truss structure and the lower truss structure are arranged along the up-down direction, the upper truss structure includes two upper chords 51 arranged in parallel and two lower chords arranged in parallel, the two upper chords 51 arranged in parallel and the two lower chords arranged in parallel are arranged along the up-down direction, and the cross section is rectangular when viewed from the cross section, so that a channel is formed in the upper truss structure, and the counterweight 4 can move through the channel; the upper chord member 51 and the lower chord member are hollow rectangular section beams, the bottom of the upper chord member 51 is provided with the lower cover plate 52, the flange plates extending inwards from the two lower cover plates 52 of the two upper chord members 51 form tracks, no extra track is required to be laid for the movable balance weight 4, correspondingly, the rollers 41 are symmetrically arranged on the left side and the right side of the movable balance weight 4, and the rollers 41 roll on the tracks to realize the movement of the movable balance weight 4. Wherein the roller 41 may be a flanged roller.
In the embodiment of the present invention, as shown in fig. 1 to 4, the upper truss structure and the lower truss structure are connected by a pin 53. The lower truss structure is structurally similar to the upper truss structure in that it has a rectangular cross-section and in the rectangular frame, diagonal braces 54 are provided to enhance structural strength.
As a specific structure form of the traction mechanism, as shown in fig. 1 to fig. 3, the traction mechanism includes a winch 6, a first pulley block and a second pulley block, the first pulley block is installed on the boom 1, the second pulley block is installed on the balance arm 2, the winch 6 is connected with the front end of the movable balance weight 4 by bypassing the first pulley block through a traction rope, and the winch 6 is connected with the rear end of the movable balance weight 4 by bypassing the second pulley block through another traction rope, in the process of controlling the movement of the movable balance weight 4, while the winch 6 winds up one traction rope, the other traction rope is synchronously released, so as to drive the movable balance weight 4 to move on the boom smoothly at a constant speed. In a preferable case, the winch 6 may be installed on the arm support as shown in fig. 1, and of course, the winch 6 may also be installed at other positions, such as a position on the tower body close to the arm support, according to design requirements.
Further, as shown in fig. 2, the first pulley block comprises a first pulley 71 and a second pulley 72, the first pulley 71 and the second pulley 72 are installed inside the upper truss structure of the boom 1, and are connected by using a traction rope, specifically, one end of the traction rope is connected with the winch 6, and the other end of the traction rope is connected with the front end of the movable balance weight 4 by sequentially passing around the second pulley 72 and the first pulley 71, as shown in fig. 5, the front end of the movable balance weight 4 is provided with a mounting seat 42, the mounting seat 42 is used for being connected with the traction rope, the mounting seat 42 can be an ear plate, and a mounting hole is arranged on the ear plate, and the traction rope is bound on the mounting hole; as shown in fig. 3, the second pulley block comprises a third pulley 73 and a fourth pulley 74, the third pulley 73 and the fourth pulley 74 are installed inside the upper truss structure of the balance arm 2, and are connected by using another pulling rope, specifically, one end of the another pulling rope is connected with the windlass 6, and the other end of the another pulling rope is connected with the rear end of the movable balance weight 4 by sequentially passing around the fourth pulley 74 and the third pulley 73, as shown in fig. 5, the rear end of the movable balance weight 4 is also provided with a mounting seat 42, the mounting seat 42 is used for being connected with the pulling rope, the mounting seat 42 can be an ear plate, and a mounting hole is arranged on the ear plate, and the pulling rope is bound on the mounting hole. Wherein, the haulage rope is preferably wire rope.
In the embodiment of the present invention, the movable balance weight 4 can be designed to be composed of a plurality of small balance weights, and the weight of the movable balance weight 4 can be adjusted by increasing or decreasing the number of the balance weights. Specifically, as shown in fig. 5, the movable balance weight 4 is composed of a plurality of sequentially connected split balance weights, and a hook is disposed on an outer side surface of each split balance weight, and adjacent split balance weights are connected by the hook.
For a better understanding of the technical idea of the invention, the technical solution of the invention is described below in combination with relatively comprehensive technical features.
As shown in fig. 1 to 5, the counterweight system in the preferred embodiment of the present invention includes an arm support, the arm support includes a boom 1 and a balance arm 2, a fixed counterweight 3 is disposed on the balance arm 2, a movable counterweight 4 is mounted on the arm support, the arm support is a truss structure, the upper truss structure includes two parallel upper chords 51 and two parallel lower chords, the two parallel upper chords 51 and the two parallel lower chords are arranged in the vertical direction, so that a channel is formed in the upper truss structure, the upper chords 51 and the lower chords are hollow rectangular metal tubes, the bottom of the upper chords 51 is a lower cover plate 52, flange plates inwardly extending from the two lower cover plates 52 of the two upper chords 51 form a guide rail, and do not need to additionally lay a rail for the movable counterweight 4, correspondingly, rollers 41 are symmetrically disposed on the left and right sides of the movable counterweight 4, roll on the guide rail through the rollers 41, and guide the movement of the movable counterweight 4. The hoisting machine 6 is arranged on the arm support and connected by using one traction rope, one end of one traction rope is connected with the hoisting machine 6, the other end of the traction rope sequentially bypasses the second pulley 72 and the first pulley 71 to be connected with the mounting seat 42 at the front end of the movable balance weight 4, the other traction rope is connected by using the other traction rope, one end of the other traction rope is connected with the hoisting machine 6, the other end of the other traction rope sequentially bypasses the fourth pulley 74 and the third pulley 73 to be connected with the mounting seat 42 at the rear end of the movable balance weight 4, in the process of controlling the movement of the movable balance weight 4, when the hoisting machine 6 winds up one traction rope, the other traction rope can be synchronously released, and the movable balance weight 4 is driven to stably move on the arm support at a constant speed.
The movable balance weight 4 is designed to be capable of running from the rear end of the balance arm to the front end of the crane arm, the moving range is wider, the head bending moment of the tower crane can be balanced, and the head bending moment of the tower crane can be adjusted more flexibly. The movable balance weight 4 is positioned at the upper part of the inner space of the crane arm 1 and the balance arm 2, and is convenient and safe to mount, dismount, inspect and maintain.
The utility model also provides a tower crane, this tower crane adopt the balanced heavy system in above-mentioned each embodiment, consequently, have the technological effect of the balanced heavy system in above-mentioned each embodiment.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be within the scope of the present invention to perform various simple modifications to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations.
In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.
Claims (10)
1. The utility model provides a counterweight system, includes the cantilever crane, characterized in that, the cantilever crane includes jib loading boom (1) and balance arm (2), install fixed counterweight (3) on balance arm (2), install on the cantilever crane and move counterweight (4), move counterweight (4) and install the guide gyro wheel (41) that move counterweight (4) removed, the cantilever crane is formed with and is used for move counterweight (4) the passageway of walking, move counterweight (4) and be connected with the drive mechanism, in order to drive counterweight (4) is in jib loading boom (1) with reciprocating motion on balance arm (2).
2. Counterweight system according to claim 1, characterized in that the upper part of said arm support is formed with a passage for the passage of said mobile counterweight (4).
3. The balancing weight system of claim 1, wherein the arm support is a truss structure, the truss structure comprises an upper truss structure and a lower truss structure which are arranged up and down, the upper truss structure is provided with the channel inside, the upper truss structure comprises two upper chords (51) which are arranged in parallel, the bottoms of the upper chords (51) are lower cover plates (52), two flange plates which are extended inwards from the lower cover plates (52) are formed into tracks which are matched with the rollers (41) in a relatively moving way, and the rollers (41) are symmetrically arranged at the left side and the right side of the movable balancing weight (4).
4. Counterweight system according to claim 3, characterized in that said upper truss structure and said lower truss structure are connected by a pin (53).
5. The counterweight system according to claim 4, characterized in that said traction mechanism comprises a winch (6), a first pulley block and a second pulley block, said first pulley block is mounted on said boom (1), said second pulley block is mounted on said boom (2), said winch (6) is connected to the front end of said mobile counterweight (4) by a traction rope bypassing said first pulley block, and said winch (6) is connected to the rear end of said mobile counterweight (4) by another traction rope bypassing said second pulley block, so as to enable said winch (6) to synchronously release said another traction rope while winding said one traction rope, thereby driving said mobile counterweight (4) to move.
6. Counterweight system according to claim 5, characterized in that said first set of pulleys comprises a first pulley (71) and a second pulley (72), said first pulley (71) and said second pulley (72) being mounted inside said upper truss structure of said boom (1), one end of said traction rope being connected to said hoist (6) and the other end thereof being connected to the front end of said mobile counterweight (4) passing in turn around said second pulley (72) and first pulley (71); the second pulley block comprises a third pulley (73) and a fourth pulley (74), the third pulley (73) and the fourth pulley (74) are installed inside the upper truss structure of the balance arm (2), one end of the other traction rope is connected with the winch (6), and the other end of the other traction rope sequentially bypasses the fourth pulley (74) and the third pulley (73) and is connected with the rear end of the movable balance weight (4).
7. Counterweight system according to claim 5, characterized in that the front and rear ends of said mobile counterweight (4) are provided with respective mounting seats (42) for connection with said traction ropes.
8. Counterweight system according to any one of claims 3 to 7, characterized in that diagonal braces (54) are provided in said lower truss structure.
9. Counterweight system according to any one of claims 1-7, characterized in that said mobile counterweight (4) comprises several separate counterweight masses connected in series.
10. A tower crane, characterized in that a counterweight system according to any one of claims 1 to 9 is provided.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222449271.8U CN218088688U (en) | 2022-09-15 | 2022-09-15 | Counterweight system and tower crane |
| PCT/CN2023/114601 WO2024055830A1 (en) | 2022-09-15 | 2023-08-24 | Counterweight system and tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222449271.8U CN218088688U (en) | 2022-09-15 | 2022-09-15 | Counterweight system and tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218088688U true CN218088688U (en) | 2022-12-20 |
Family
ID=84454094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222449271.8U Active CN218088688U (en) | 2022-09-15 | 2022-09-15 | Counterweight system and tower crane |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN218088688U (en) |
| WO (1) | WO2024055830A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116062635A (en) * | 2023-03-23 | 2023-05-05 | 杭州未名信科科技有限公司 | Embedded integrated driving control system and method for slewing mechanism of tower crane |
| WO2024055830A1 (en) * | 2022-09-15 | 2024-03-21 | 中联重科建筑起重机械有限责任公司 | Counterweight system and tower crane |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000191280A (en) * | 1998-12-25 | 2000-07-11 | Ishikawajima Harima Heavy Ind Co Ltd | Concrete transport and placing device |
| CN1837011A (en) * | 2006-04-20 | 2006-09-27 | 谭春阳 | Self-balancing up-rotary type tower crane and operation control |
| CN202016814U (en) * | 2011-05-03 | 2011-10-26 | 中国建筑科学研究院建筑机械化研究分院 | Automatic structural gravity center balancing system |
| CN106517005A (en) * | 2016-12-23 | 2017-03-22 | 河南森源重工有限公司 | Automatic-balanced telescopic arm and photovoltaic plate cleaning equipment with telescopic arm |
| CN218088688U (en) * | 2022-09-15 | 2022-12-20 | 中联重科建筑起重机械有限责任公司 | Counterweight system and tower crane |
| CN115535887A (en) * | 2022-09-16 | 2022-12-30 | 中联重科建筑起重机械有限责任公司 | Tower crane, control method and device thereof, processor and cloud management platform |
-
2022
- 2022-09-15 CN CN202222449271.8U patent/CN218088688U/en active Active
-
2023
- 2023-08-24 WO PCT/CN2023/114601 patent/WO2024055830A1/en unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024055830A1 (en) * | 2022-09-15 | 2024-03-21 | 中联重科建筑起重机械有限责任公司 | Counterweight system and tower crane |
| CN116062635A (en) * | 2023-03-23 | 2023-05-05 | 杭州未名信科科技有限公司 | Embedded integrated driving control system and method for slewing mechanism of tower crane |
| CN116062635B (en) * | 2023-03-23 | 2023-08-18 | 杭州未名信科科技有限公司 | Embedded integrated driving control system and method for slewing mechanism of tower crane |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024055830A1 (en) | 2024-03-21 |
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