CN113148877A - Tower crane slewing mechanism installation method - Google Patents
Tower crane slewing mechanism installation method Download PDFInfo
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- CN113148877A CN113148877A CN202110436356.XA CN202110436356A CN113148877A CN 113148877 A CN113148877 A CN 113148877A CN 202110436356 A CN202110436356 A CN 202110436356A CN 113148877 A CN113148877 A CN 113148877A
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- slewing
- installation
- fixed
- slewing mechanism
- fixed support
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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
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention discloses a method for installing a slewing mechanism of a tower crane, which comprises a fixed support arranged on a slewing bearing frame, a wedge block matched with the fixed support and a connecting piece, wherein the fixed support is in a wedge shape with a wide lower part and a narrow upper part, the inclined plane of the wedge block is matched with the upper wedge-shaped inclined plane of the fixed support, the upper part of the wedge block horizontally extends to form a top cover, the connecting piece penetrates through the top cover to fix the wedge block on the fixed support, the slewing bearing frame is fixed on the side edge of the slewing mechanism, a bayonet is arranged on a rotating arm of the slewing mechanism, and the bayonet is aligned with the fixed support for installation. The invention realizes the high-efficiency processing of the slewing bearing frame, the stable installation of the slewing mechanism and the quick installation of the slewing mechanism.
Description
Technical Field
The invention relates to the technical field of auxiliary equipment of a tower crane, and particularly belongs to a method for installing a slewing mechanism of the tower crane.
Background
The swing mechanism is a core mechanism of the tower crane, and the installation and fixation of the swing mechanism directly affect the safe operation of the whole tower crane. The slewing mechanism is arranged on a slewing bearing frame of the tower crane, and is effectively matched with the slewing bearing frame of the tower crane to drive the tower crane to perform slewing action. The slewing mechanism is used for reducing speed and increasing torque through the planetary slewing reducer, outputting strong torque to drive the tower crane to perform slewing work, mainly bearing the slewing torque transmitted to the slewing mechanism by a slewing component of the tower crane during the work, and transmitting the slewing torque to the slewing bearing frame through effective assembly. The installation fixed form of rotation mechanism at present is that the ring flange equipartition is 10 to 20 high strength bolt fixed mounting, and the ring flange is effectively laminated with slewing bearing, and it is steady fixed to fill pressure through high strength bolt group, can bear great gyration torque, guarantees that tower machine rotation mechanism installs firmly, and the wide application is gone up on numerous brand tower crane in China.
The installation position of the slewing mechanism is assembled by adopting a flange plate and uniformly distributed bolt sets, an installation hole needs to be drilled on the slewing bearing frame according to the size of the installation hole position of the slewing mechanism, the slewing mechanism and the slewing bearing gear are matched after debugging is completed, then the installation bolt sets are sequentially screwed to complete the assembly, the slewing mechanism can be effectively fixed, and the safe and normal use of the slewing mechanism is ensured. The installation form and the installation method of the slewing mechanism of the tower crane take the stress condition of the slewing mechanism of the tower crane into consideration, disperse the torque born by the slewing mechanism to the evenly distributed bolt sets taking the axial lead of the slewing mechanism as the center, and effectively install and fix the slewing mechanism. The slewing mechanism in the domestic tower crane industry is mostly installed in the structural form, and the slewing mechanism is widely applied to the tower crane industry.
The installation mode of the slewing mechanism can effectively install and fix the slewing mechanism, but the requirement on the machining precision of the corresponding mounting bolt hole of the slewing upper supporting frame is high, and the machining process is complex. And the rotary supporting frame has compact structure, and is limited by the structure of the rotary supporting frame when the rotary mechanism is assembled, so that the bolt assembly is difficult, time-consuming and labor-consuming. The bolt leaks to screw up or the degree of screwing up is not enough appears easily, mainly leans on bolt assembly to compress tightly the ring flange in the use, increases the frictional force between ring flange and the slewing bearing frame and resists rotation mechanism and bear the torque, and the bolt is screwed up too loosely during the installation and can be caused bolt assembly in the use and become flexible for rotation mechanism installation inefficacy has the potential safety hazard.
Disclosure of Invention
The invention aims to provide a method for mounting a slewing mechanism of a tower crane, which adopts a wedge block to wedge a gap between a rotating arm bayonet of the slewing mechanism and a fixed support, thereby realizing effective fixed mounting of the slewing mechanism, limiting the rotation of the slewing mechanism, simultaneously transmitting the torque borne by the slewing mechanism to the fixed support, and resisting the torque transmitted by the slewing mechanism through the fixed support. In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a tower machine rotation mechanism installation device, including installing fixing support on the slewing bearing frame, with the voussoir and the connecting piece of fixing support adaptation, fixing support is narrow wedge on the width down, the inclined plane of voussoir and fixing support's upper portion wedge inclined plane adaptation, the upper portion level of this voussoir extends and forms the top cap, the connecting piece pierces through the top cap and fixes the voussoir on fixing support, the side at slewing mechanism is fixed to the slewing bearing frame, sets up the bayonet socket on this slewing mechanism rocking arm, the bayonet socket is aimed at the fixing support installation.
Furthermore, the rotary support frame is a horizontal plate directly welded and fixed on the rotary mechanism.
Furthermore, the bottom of the fixed support extends outwards to enlarge the area of the bottom surface to form a fixed part, the fixed part is welded and fixed on the rotating support frame, the inclined surface of the fixed support faces the direction opposite to the rotation direction of the rotating mechanism, and the back of the inclined surface is a vertical surface which faces vertically downwards.
Furthermore, the inner side surface of the wedge block is an inclined surface matched with the inclined surface of the fixed support, the inclined surface and the horizontally arranged top cover form an obtuse angle, and the outer side surface of the wedge block is a vertical downward vertical surface and forms a right angle with the top cover.
Furthermore, the connecting piece is a high-strength bolt, a vertically downward screw hole is formed in the top of the fixing support, and the high-strength bolt penetrates through the top cover to penetrate into the screw hole to fix the top cover right above the fixing support.
A slewing mechanism of a tower crane is provided with a slewing mechanism rotating arm, the slewing mechanism rotating arm is provided with a bayonet, a mounting component detachably clamped through a wedge block is arranged at the bayonet, the bottom of the mounting device is fixed on a slewing bearing frame, and the whole mounting device is clamped in the bayonet.
Furthermore, the mounting assembly comprises a fixed support, a wedge block and a high-strength bolt, the wedge block is fixed to the top of the fixed support through the high-strength bolt during mounting, and the whole fixed support is welded and fixed to the rotary support frame after the rotary arm of the rotary mechanism is mounted and the bayonet is formed.
Furthermore, the diameter of the high-strength bolt is gradually increased from the bottom upwards, the screw hole in the fixing support is also gradually increased from the bottom upwards to be matched with the high-strength bolt, and the high-strength bolt penetrates through the screw hole after penetrating through the top cover to enable the top cover to be located right above the fixing support and to have a certain distance from the top of the fixing support.
In summary, due to the adoption of the technical scheme, the invention has the following technical effects:
1. the invention can realize the efficient and stable installation of the swing mechanism, meet the installation and use requirements of the swing mechanism and avoid the influence on the installation stability of the swing mechanism due to the installation of a single fixed support; meanwhile, the machining procedures of the rotary supporting frame are reduced, and the aims of cost reduction and efficiency improvement can be achieved.
2. According to the characteristics of assembly and stress of the slewing mechanism, the quick, simple and stable mounting method is designed, and meanwhile, the slewing mechanism can be quickly, efficiently and stably assembled without machining the mounting hole of the bolt set of the slewing bearing frame.
3. The invention ensures that the slewing mechanism is stably installed, reduces the processing procedure of the slewing bearing frame, effectively and fixedly installs the slewing mechanism on the slewing bearing frame by matching the fixed support with the wedge block, and compresses the wedge block and the fixed support by matching with the compression bolt.
Drawings
FIG. 1 is a schematic view of the mounting device of the present invention being snapped into a bayonet;
FIG. 2 is a top view of the mounting device of the present invention secured to a swing mechanism;
FIG. 3 is a front view of the mounting device of the present invention secured to a swing mechanism;
FIG. 4 is a side view of the mounting device of the present invention secured to a swing mechanism;
fig. 5 is a structural schematic diagram of installation of a slewing mechanism of a traditional tower crane.
In the drawings: the device comprises a rotary support frame 1, a fixed support 2, a wedge block 3, a connecting piece 4, a rotary mechanism 5, a rotating arm 6, a top cover 7 and an installation bolt set 8.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings by way of examples of preferred embodiments. It should be noted, however, that the numerous details set forth in the description are merely for the purpose of providing the reader with a thorough understanding of one or more aspects of the present invention, which may be practiced without these specific details.
Example 1
As shown in figure 1, a tower machine rotation mechanism installation device, including install fixing support 2 on slewing bearing frame 1, with voussoir 3 and connecting piece 4 of fixing support 2 adaptation, fixing support 2 is the wedge narrow on the wide down, the inclined plane of voussoir 3 and fixing support 2's upper portion wedge inclined plane adaptation, the upper portion level of this voussoir 3 extends and forms the top cap, connecting piece 4 pierces through the top cap and fixes voussoir 3 on fixing support 2, slewing bearing frame 1 is fixed at slewing mechanism 5's side, offers the bayonet socket on this slewing mechanism rocking arm 6, the bayonet socket is aimed at fixing support 2 and is installed. According to the characteristics of assembly and stress of the slewing mechanism 5, a quick, simple and stable mounting method is developed, and meanwhile, the slewing mechanism can be quickly, efficiently and stably assembled without machining a slewing bearing frame bolt set mounting hole. When guaranteeing that rotation mechanism firm installation, reduce the manufacturing procedure of slewing bearing frame, effective fixed mounting of rotation mechanism on slewing bearing frame 1 through 5 cooperation voussoirs of fixing support, cooperation clamp bolt compresses tightly voussoir and fixing support, because slewing mechanism bears torque load, clamp bolt only needs to provide very little pressure can guarantee voussoir and fixing support effective installation, improve slewing bearing frame 1 machining efficiency and slewing mechanism's assembly efficiency, solve the easy not hard up problem of slewing mechanism construction bolt assembly difficulty and bolt assembly because of slewing bearing frame structure complicacy causes simultaneously.
The rotary supporting frame 1 is a horizontal steel plate directly welded and fixed on the rotary mechanism,
the bottom of the fixed support 2 extends outwards to enlarge the area of the bottom surface to form a fixed part which is welded and fixed on the rotary supporting frame, the inclined surface of the fixed support 2 faces to the direction opposite to the rotation direction of the rotary mechanism, and the back of the inclined surface is a vertical surface which faces vertically downwards.
The inner side surface of the wedge 3 is an inclined surface matched with the inclined surface of the fixed support, the inclined surface forms an obtuse angle with the horizontally arranged top cover 7, and the outer side surface of the wedge 3 is a vertical downward vertical surface and forms a right angle with the top cover 7.
The connecting piece 4 is a high-strength bolt, the top of the fixed support 2 is provided with a vertically downward screw hole, the high-strength bolt is matched with the screw hole, the top of the high-strength bolt can be further provided with a handle which is convenient to screw, the high-strength bolt penetrates through the top cover to the screw hole to fix the top cover right above the fixed support,
as shown in fig. 5, the conventional installation method of the swing mechanism is to assemble the swing mechanism by using a flange and uniformly distributed bolt sets, drill an installation hole on a swing support according to the size of the installation hole of the swing mechanism, and sequentially screw the installation bolt sets to complete the assembly after the swing mechanism and the swing support gear are matched, so that the swing mechanism can be effectively fixed and the safe and normal use of the swing mechanism is ensured.
The device installation of this embodiment compares with the mounting means of traditional mechanism, can satisfy rotation mechanism's firm installation requirement, satisfies swift, the simplicity of installation simultaneously, and the high efficiency of processing realizes the high-efficient processing of gyration supporting rack, rotation mechanism's firm installation, rotation mechanism's three big targets of quick installation.
Example 2
The utility model provides a tower machine rotation mechanism installation method, sets up rotation mechanism rocking arm 6 on rotation mechanism, sets up the bayonet socket on rotation mechanism rocking arm, sets up the installation component that can dismantle the block through the voussoir in this bayonet socket department, and this installation device's bottom is fixed on the gyration supporting rack, establishes whole installation device card in the bayonet socket, and the key problem of solution is: 1. the slewing mechanism fixing support is directly welded on the slewing bearing frame, and the problems that the slewing bearing frame slewing mechanism mounting bolt set mounting hole is complex to machine and high in precision requirement are solved. 2. The stability of the installation of the slewing mechanism and the high-efficiency simplicity of the machining of the slewing bearing frame and the installation of the slewing mechanism are improved.
The mounting assembly comprises a fixed support 2, a wedge block 3 and a high-strength bolt 4, the wedge block is fixed at the top of the fixed support by the high-strength bolt 4 during mounting, and the whole fixed support is welded and fixed on the rotary support frame after the rotary arm of the rotary mechanism is mounted and the bayonet is formed.
The diameter of high strength bolt 4 is upwards crescent by the bottom, screw on fixing support 2 is also upwards crescent and high strength bolt adaptation by the bottom, and this high strength bolt 4 passes and makes the top cap be located fixing support directly over and have the certain distance with the fixing support top in penetrating the screw behind the top cap.
The invention aims at the research of the simplicity and stability of the installation of the slewing mechanism of the existing tower crane. A fixed support is welded on a slewing bearing frame, a rotating arm is arranged on the side face of a machine base of a slewing speed reducer and is connected with a slewing mechanism into a whole, a bayonet is formed in the rotating arm of the slewing mechanism, the bayonet is aligned to the fixed support for installation when the slewing mechanism is installed, and meanwhile, a wedge block is adopted for wedging a gap between the bayonet of the rotating arm of the slewing mechanism and the fixed support, so that the effective fixed installation of the slewing mechanism is realized, the rotation of the slewing mechanism is limited, meanwhile, the torque borne by the slewing mechanism is transmitted to the fixed support, and the torque transmitted by the slewing mechanism is resisted through the fixed support.
The invention mainly welds a fixed support on a rotary support frame, simultaneously sets a rotating arm on the side of a machine base of a rotary speed reducer and is connected with a rotary mechanism into a whole, the rotating arm of the rotary mechanism is provided with a bayonet, the bayonet is aligned with the fixed support to be installed when the rotary mechanism is installed, simultaneously adopts a wedge block to wedge a gap between the bayonet of the rotating arm of the rotary mechanism and the fixed support, the binding surfaces of the wedge block and the fixed support are inclined surfaces with the same inclination, and adopts a single high-strength bolt to press the wedge block downwards along the binding inclined surface. Because the binding surfaces of the wedge block and the fixed support are designed to be inclined planes, the width of the wedge block and the fixed support after the wedge block and the fixed support are assembled is wider as the wedge block moves downwards, so that the bayonet of the rotating arm of the swing mechanism is clamped on the fixed support and the wedge block, and the effective installation of the swing mechanism is simply and quickly realized.
The technical scheme of the invention can realize the efficient and stable installation of the swing mechanism, meet the installation and use requirements of the swing mechanism and avoid the influence on the installation stability of the swing mechanism due to the installation of a single fixed support; meanwhile, the processing procedures of the rotary supporting frame are reduced, and the aims of reducing cost and improving efficiency can be achieved
The working principle is as follows: the invention mainly welds a fixed support on a rotary support frame, simultaneously sets a rotating arm on the side of a machine base of a rotary speed reducer and is connected with a rotary mechanism into a whole, the rotating arm of the rotary mechanism is provided with a bayonet, the bayonet is aligned with the fixed support to be installed when the rotary mechanism is installed, simultaneously adopts a wedge block to wedge a gap between the bayonet of the rotating arm of the rotary mechanism and the fixed support, the binding surfaces of the wedge block and the fixed support are inclined surfaces with the same inclination, and adopts a single high-strength bolt to press the wedge block downwards along the binding inclined surface. Because the binding surfaces of the wedge block and the fixed support are designed to be inclined planes, the width of the wedge block and the fixed support after the wedge block and the fixed support are assembled is wider as the wedge block moves downwards, so that the bayonet of the rotating arm of the swing mechanism is clamped on the fixed support and the wedge block, and the effective installation of the swing mechanism is simply and quickly realized.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention.
Claims (8)
1. The utility model provides a tower machine rotation mechanism installation device which characterized in that: including installing fixing support on slewing bearing frame, with the voussoir and the connecting piece of fixing support adaptation, fixing support is narrow wedge in the bottom width, the inclined plane of voussoir and fixing support's upper portion wedge inclined plane adaptation, the upper portion level of this voussoir extends and forms the top cap, the connecting piece pierces through the top cap and fixes the voussoir on fixing support, slewing bearing frame fixes the side at slewing mechanism, sets up the bayonet socket on this slewing mechanism rocking arm, the bayonet socket aims at the fixing support installation.
2. The installation device of the slewing mechanism of the tower crane as claimed in claim 1, wherein: the rotary supporting frame is a horizontal plate which is directly welded and fixed on the rotary mechanism.
3. A tower crane slewing mechanism mounting device as claimed in claim 2, wherein: the bottom of the fixed support extends outwards to enlarge the area of the bottom surface to form a fixed part, the fixed part is welded and fixed on the rotary supporting frame, the inclined plane of the fixed support faces the direction opposite to the rotation direction of the rotary mechanism, and the back of the inclined plane is a vertical plane which faces vertically downwards.
4. A tower crane slewing mechanism mounting device as claimed in claim 3, wherein: the inner side surface of the wedge block is an inclined surface matched with the inclined surface of the fixed support, the inclined surface and the horizontally arranged top cover form an obtuse angle, and the outer side surface of the wedge block is a vertical downward vertical surface and forms a right angle with the top cover.
5. A tower crane slewing mechanism mounting device as claimed in claim 4, wherein: the connecting piece is a high-strength bolt, a vertically downward screw hole is formed in the top of the fixed support, and the high-strength bolt penetrates through the top cover to penetrate into the screw hole to fix the top cover right above the fixed support.
6. A method for installing a tower crane slewing mechanism by using the installation device as claimed in claims 1-5, characterized in that: the rotary mechanism is provided with a rotary mechanism rotating arm, the rotary mechanism rotating arm is provided with a bayonet, the bayonet is provided with an installation assembly which can be detachably clamped through a wedge block, the bottom of the installation device is fixed on a rotary supporting frame, and the whole installation device is clamped in the bayonet.
7. The installation method of the slewing mechanism of the tower crane as claimed in claim 6, wherein: the installation assembly comprises a fixed support, a wedge block and a high-strength bolt, the wedge block is fixed at the top of the fixed support by the high-strength bolt during installation, and the whole fixed support is welded and fixed on the rotary support frame after the rotary arm of the rotary mechanism is installed and the bayonet is formed.
8. The installation method of the slewing mechanism of the tower crane as claimed in claim 7, wherein: the diameter of the high-strength bolt is gradually increased from the bottom upwards, the screw hole in the fixing support is also gradually increased from the bottom upwards and matched with the high-strength bolt, and the high-strength bolt penetrates through the screw hole after penetrating through the top cover to enable the top cover to be located right above the fixing support and to have a certain distance from the top of the fixing support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110436356.XA CN113148877A (en) | 2021-04-22 | 2021-04-22 | Tower crane slewing mechanism installation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110436356.XA CN113148877A (en) | 2021-04-22 | 2021-04-22 | Tower crane slewing mechanism installation method |
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| Publication Number | Publication Date |
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| CN113148877A true CN113148877A (en) | 2021-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110436356.XA Pending CN113148877A (en) | 2021-04-22 | 2021-04-22 | Tower crane slewing mechanism installation method |
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| CN (1) | CN113148877A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3536204A (en) * | 1968-12-06 | 1970-10-27 | Morgan Eng | Anchoring device for gantry cranes |
| EP0530114A1 (en) * | 1991-08-30 | 1993-03-03 | Potain | Dismountable assembly device for metallic framework elements |
| CN104876135A (en) * | 2015-06-10 | 2015-09-02 | 南京工业大学 | Folding tower crane with automatic locking and unlocking functions |
| CN105174084A (en) * | 2015-06-10 | 2015-12-23 | 南京工业大学 | Automatic locking and unlocking device for inner tower body and outer tower body of fast-assembling folding tower crane |
| CN208617250U (en) * | 2018-06-28 | 2019-03-19 | 成都久和动力科技有限责任公司 | A kind of planetary reduction gear with quick mounting and positioning device |
-
2021
- 2021-04-22 CN CN202110436356.XA patent/CN113148877A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3536204A (en) * | 1968-12-06 | 1970-10-27 | Morgan Eng | Anchoring device for gantry cranes |
| EP0530114A1 (en) * | 1991-08-30 | 1993-03-03 | Potain | Dismountable assembly device for metallic framework elements |
| CN104876135A (en) * | 2015-06-10 | 2015-09-02 | 南京工业大学 | Folding tower crane with automatic locking and unlocking functions |
| CN105174084A (en) * | 2015-06-10 | 2015-12-23 | 南京工业大学 | Automatic locking and unlocking device for inner tower body and outer tower body of fast-assembling folding tower crane |
| CN208617250U (en) * | 2018-06-28 | 2019-03-19 | 成都久和动力科技有限责任公司 | A kind of planetary reduction gear with quick mounting and positioning device |
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Application publication date: 20210723 |
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