CN216190601U

CN216190601U - Rotary platform of tower crane

Info

Publication number: CN216190601U
Application number: CN202122763182.6U
Authority: CN
Inventors: 张朝赵
Original assignee: Guangxi Huasheng Mechanical Equipment Co ltd; Beibu Gulf University
Current assignee: Guangxi Huasheng Mechanical Equipment Co ltd; Beibu Gulf University
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-04-05
Anticipated expiration: 2031-11-12

Abstract

The utility model discloses a rotary platform of a tower crane, which comprises a lower support, wherein the upper end of a first flange plate is connected with a first gear through a bolt flange, the periphery of a second flange plate is fixedly connected with the inner lower part of the upper support, the upper side of an upper side mounting seat is connected with three asynchronous motors through bolts, the lower end driving ends of the three asynchronous motors are fixedly connected with the upper end of a planetary reducer, and the lower end of the planetary reducer is fixedly connected with a second gear. According to the utility model, through the transmission of the vertical motor and the planetary reducer, the transmission of the rotary platform has the advantages of large transmission ratio, compact structure, high transmission efficiency and the like, the over-violent braking action can be avoided, and the rotary platform can automatically rotate to the downwind position when strong wind exists, so that the overturning danger is reduced, and the parts of each part can be detached, so that the rotary platform is convenient to overhaul, and damaged parts can be conveniently replaced.

Description

Rotary platform of tower crane

Technical Field

The utility model relates to the field of tower cranes, in particular to a rotary platform of a tower crane.

Background

The tower crane is the most common hoisting equipment on the construction site, also known as tower crane, which is an indispensable equipment on the construction site and is used for hoisting construction raw materials such as reinforcing steel bars, wood ridges, concrete, steel pipes and the like for construction by lengthening (height) one section by one section, and the tower crane has the function of bearing the upper load transmitted by a boom pull rope and a balance arm pull rope and is directly transmitted to a tower body structure through a rotary tower, a rotary table, a bearing seat and other structural components.

The rotary platform is used as the most important part in the tower crane, mainly provides steering for the tower crane after hoisting the object, and realizes transferring the object.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a rotary platform of a tower crane.

In order to achieve the purpose, the utility model adopts the following technical scheme: tower crane rotary platform, including the undersetting, the inside fixedly connected with bearing of undersetting, the first ring flange of upper end fixedly connected with of bearing, the upper end of first ring flange has first gear through bolt flange connection, the interior week of upper end of first gear has the second ring flange through bolt flange connection, the periphery fixed connection of second ring flange is in the interior lower part of upper bracket, the equal fixedly connected with mount pad of lower extreme on the right side middle part of upper bracket, upside the upside of mount pad has three asynchronous machine through bolted connection, three asynchronous machine's lower extreme drive end fixed connection is in planetary reducer's upper end, planetary reducer's lower extreme fixedly connected with second gear.

As a further description of the above technical solution:

and the four corners of the lower end of the lower support are fixedly connected with connecting seats.

As a further description of the above technical solution:

the upper support is characterized in that first lifting lugs are fixedly connected to two ends of the front side of the upper portion of the upper support, and inner openings in the upper ends of the first lifting lugs are connected to two sides of the lower end of the front portion of the mounting support through bolts.

As a further description of the above technical solution:

and the two ends of the rear side of the upper part of the upper support are fixedly connected with second lifting lugs, and the upper ends of the second lifting lugs are connected to the two sides of the lower end of the rear part of the mounting bracket through bolts.

As a further description of the above technical solution:

the periphery of the first flange plate is rotatably connected into an opening at the upper end of the lower support.

As a further description of the above technical solution:

the equal fixedly connected with first engaging lug of right-hand member about the front side middle part of upper bracket, the equal fixedly connected with second engaging lug of right-hand member about the rear side middle part of upper bracket.

As a further description of the above technical solution:

the upper side and the lower side of the planetary reducer are fixedly connected to one side, close to the mounting seat, of the mounting seat.

As a further description of the above technical solution:

the first gear is in meshed connection with the second gear.

The utility model has the following beneficial effects:

1. according to the utility model, firstly, the three asynchronous motors are started, the second gear is driven to rotate by the planetary reducer, the second gear drives the first gear to rotate, the first gear drives the upper support to rotate by the second flange plate, the second gear and the first gear are driven to rotate by the vertical three asynchronous motors and the planetary reducer, the planetary transmission has the advantages of large transmission ratio, compact structure, high transmission efficiency and the like, and is an ideal transmission scheme of the swing mechanism of the crane.

2. In the utility model, all parts can be detached, so that the rotary platform is convenient to overhaul and damaged parts are convenient to replace.

Drawings

FIG. 1 is a perspective view of a rotary platform of a tower crane according to the present invention;

FIG. 2 is a front view of a rotary platform of a tower crane according to the present invention;

fig. 3 is an exploded view of a rotary platform of a tower crane according to the present invention.

Illustration of the drawings:

1. a lower support; 2. a connecting seat; 3. a bearing; 4. a first flange plate; 5. a second engaging lug; 6. a first gear; 7. a second flange plate; 8. an upper support; 9. a first lifting lug; 10. a second lifting lug; 11. mounting a bracket; 12. a mounting seat; 13. three asynchronous motors; 14. a planetary reducer; 15. a second gear; 16. the first connection lug.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being 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 invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, one embodiment of the present invention is provided: a tower crane rotary platform comprises a lower support 1, a bearing 3 is fixedly connected inside the lower support 1, a first flange plate 4 is fixedly connected at the upper end of the bearing 3, a first gear 6 is connected at the upper end of the first flange plate 4 through a bolt flange, a second flange plate 7 is connected at the inner periphery of the upper end of the first gear 6 through a bolt flange, the outer periphery of the second flange plate 7 is fixedly connected at the inner lower part of an upper support 8, mounting seats 12 are fixedly connected at the upper and lower ends of the middle part of the right side of the upper support 8, three asynchronous motors 13 are connected at the upper side of the upper mounting seat 12 through bolts, the lower end driving ends of the three asynchronous motors 13 are fixedly connected at the upper end of a planetary reducer 14, and a second gear 15 is fixedly connected at the lower end of the planetary reducer 14, firstly, the three asynchronous motors 13 are started, the second gear 15 is driven to rotate through the planetary reducer 14, and the first gear 6 is driven to rotate by the second gear 15, the first gear 6 drives the upper support 8 to rotate through the second flange 7, the second gear 15 and the first gear 6 are driven to rotate through the vertical three-phase asynchronous motor 13 and the planetary reducer 14, the planetary transmission has the advantages of large transmission ratio, compact structure, high transmission efficiency and the like, and is an ideal transmission scheme of the swing mechanism of the crane.

The four corners of the lower end of the lower support 1 are fixedly connected with connecting seats 2, so that a rotary platform can be conveniently installed on a bottom supporting frame, two ends of the front side of the upper part of the upper support 8 are fixedly connected with first lifting lugs 9, inner openings of the upper ends of the first lifting lugs 9 are respectively connected with two sides of the lower end of the front part of an installing support 11 through bolts, two ends of the rear side of the upper part of the upper support 8 are respectively fixedly connected with second lifting lugs 10, the upper ends of the second lifting lugs 10 are respectively connected with two sides of the lower end of the rear part of the installing support 11 through bolts, the position of the installing support 11 is fixed, the periphery of a first flange plate 4 is rotatably connected in an opening of the upper end of the lower support 1, so that a first gear 6 can rotate on the lower support 1, the left end and the right end of the middle part of the front side of the upper support 8 are respectively and fixedly connected with first connecting lugs 16, the left end and the right end of the middle part of the rear side of the upper support 8 are respectively and fixedly connected with second connecting lugs 5, and all parts can be disassembled, realized that rotary platform's maintenance is convenient to conveniently change the spare part of damage, the equal fixed connection of last downside of planetary reducer 14 is in the one side that mounting seat 12 is close to mutually, and first gear 6 is connected with the 15 meshing of second gear, conveniently drives upper bracket 8 and rotates, thereby makes rotary platform drive tower crane rotate.

The working principle is as follows: firstly, three asynchronous motors 13 are started, a second gear 15 is driven to rotate through a planetary reducer 14, the second gear 15 drives a first gear 6 to rotate, the first gear 6 drives an upper support 8 to rotate through a second flange 7, the second gear 15 and the first gear 6 are driven to rotate through the vertical three asynchronous motors 13 and the planetary reducer 14, the planetary transmission has the advantages of large transmission ratio, compact structure, high transmission efficiency and the like, and the transmission scheme is an ideal transmission scheme of the swing mechanism of the crane.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. Tower crane rotary platform, including undersetting (1), its characterized in that: a bearing (3) is fixedly connected inside the lower support (1), a first flange plate (4) is fixedly connected at the upper end of the bearing (3), the upper end of the first flange plate (4) is connected with a first gear (6) through a bolt flange, the inner circumference of the upper end of the first gear (6) is connected with a second flange plate (7) through a bolt flange, the periphery of the second flange plate (7) is fixedly connected with the inner lower part of the upper support (8), the upper end and the lower end of the middle part of the right side of the upper support (8) are fixedly connected with a mounting seat (12), the upper side of the upper mounting seat (12) is connected with three asynchronous motors (13) through bolts, the lower end driving ends of the three asynchronous motors (13) are fixedly connected with the upper end of a planetary reducer (14), the lower end of the planetary reducer (14) is fixedly connected with a second gear (15).

2. The tower crane rotary platform of claim 1, wherein: the four corners of the lower end of the lower support (1) are fixedly connected with connecting seats (2).

3. The tower crane rotary platform of claim 1, wherein: the upper support (8) is characterized in that first lifting lugs (9) are fixedly connected to two ends of the front side of the upper portion of the upper support (8), and inner openings of the upper ends of the first lifting lugs (9) are connected to two sides of the lower end of the front portion of the mounting bracket (11) through bolts.

4. The tower crane rotary platform of claim 1, wherein: and the two ends of the rear side of the upper part of the upper support (8) are fixedly connected with second lifting lugs (10), and the upper ends of the second lifting lugs (10) are connected to the two sides of the lower end of the rear part of the mounting bracket (11) through bolts.

5. The tower crane rotary platform of claim 1, wherein: the periphery of the first flange plate (4) is rotatably connected into an opening at the upper end of the lower support (1).

6. The tower crane rotary platform of claim 1, wherein: the equal fixedly connected with first engaging lug (16) of front side middle part left and right ends of upper bracket (8), the equal fixedly connected with second engaging lug (5) of rear side middle part left and right ends of upper bracket (8).

7. The tower crane rotary platform of claim 1, wherein: the upper side and the lower side of the planetary reducer (14) are fixedly connected to the side, close to the mounting seat (12).

8. The tower crane rotary platform of claim 1, wherein: the first gear (6) is in meshed connection with the second gear (15).