CN216889847U - Tower head supporting and rotating device of tower crane - Google Patents

Abstract

The utility model provides a tower head supporting and rotating device of a tower crane, which comprises a base, a plurality of main chords (1), ear plates (2), an upper panel (3) and a lower panel (4), wherein the base consists of the upper panel (3), the lower panel (4) and a coaming; the number of the main chords (1) is four, and the main chords are respectively arranged at four corners of the base; each main chord (1) is of a square tube structure; one side of the base is also provided with an upper positioning plate (8); two sides of each main chord (1) are provided with ear plates (2); a circular plate (13) is arranged in the base, and the circular plate (13) is fixed on the lower panel (4) through welding. The utility model has high manufacturing precision and long service life, and solves the technical problems of low manufacturing precision, difficult tower head installation and easy abrasion of the existing tower head slewing device.

Description

Tower head supporting and rotating device of tower crane

Technical Field

The utility model relates to the technical field of tower head rotation of cranes, in particular to a tower head supporting and rotating device of a tower crane.

Background

With the development of society, the heavy industry develops more and more rapidly, and the prospect of crane industry is seen by many people. Tower cranes are large vertical transport equipment that is very important and common at construction sites. According to different amplitude modes, the tower crane can be divided into a horizontal amplitude tower crane and a movable arm amplitude tower crane. The structure of horizontal tower machine includes the tower body usually, installs the gyration at this tower body top and supports and install the tower head on gyration support upper portion, and tower crane tower head support slewer of earlier stage has following problem:

1. when the tower crane in the previous stage is used for mounting and dismounting the tower head and the supporting and slewing device, the tower head and the supporting and slewing device of the crane are inconvenient to mount, so that the workload of operators is increased and the working efficiency of the operators is reduced when the supporting and slewing device is mounted and dismounted;

2. the supporting and rotating device of the tower crane in the previous stage is fixedly connected with the tower head through the cross-shaped double pin shafts, the precision of the cross-shaped double pin shaft structure is difficult to control during processing, manual grinding is usually needed to be assisted, the structural strength of a workpiece is damaged, the gap is enlarged after the tower crane is used for a long time, and the service life is influenced.

In patent CN 202020723729.2, a supporting slewer of hoist installation crane is disclosed, including hoist body, last supporting seat, shock attenuation box, motor and T type lead screw, the spout has all been seted up to the inside both sides of shock attenuation box, and the inside of spout is provided with the stabilizer blade, the sleeve is all installed to the both sides of the inside bottom of shock attenuation box, and telescopic inside is provided with the gasbag, the under bracing seat is installed on the top of stabilizer blade, the gyration back shaft is installed through the bracing piece in the top of under bracing seat, the installation box is installed to one side of under bracing seat, and the inside of installation box is provided with the motor, the installation piece is all installed on the top of gyration back shaft. This kind of support slewer of hoist installation crane drives the activity stopper through rotating T type lead screw and rotates to the activity stopper passes through to move under the effect of T type pull rod, and then can block and separate the second spacing groove, and this structure is convenient for install and dismantle the hoist body.

In patent CN202110432462.0, a slewing assembly and its upper support, slewing assembly components and tower crane are disclosed, wherein the upper support comprises a support main body, a first connecting structure for connecting a jib disposed on one side of the support main body, and a second connecting structure for connecting a balance arm disposed on the other side of the support main body. This patent can utilize the bottom of the root of upper bracket connection jib loading boom and balance arm to the total height of gyration assembly and tower head is the sum of the height of jib loading boom and the slewing bearing of gyration assembly, the height of undersetting basically, has reduced the height of upper bracket, thereby can satisfy the limit for height requirement of transportation, makes gyration assembly and tower head transport together after can assembling.

The patent CN202011050097.9 discloses an emergency auxiliary supporting device for a crane, which comprises a vehicle body, wherein a long rod is fixedly connected inside the vehicle body, a supporting plate is movably sleeved outside the long rod, a supporting rod is movably sleeved inside the supporting plate, a magnet is fixedly connected outside the supporting rod, a rack is fixedly connected outside the supporting rod, a gear is meshed outside the rack, and a rotating rod is fixedly sleeved inside the gear; through the interaction of the glass tube, the steel ball, the contact piece, the first spring, the supporting plate, the supporting rod, the first electromagnet, the first magnet, the ratchet wheel, the gear, the rack, the limiting component and the rotating rod, when the weight of the hoisted object exceeds the maximum limit value of the crane, the crane can be assisted to support, the crane is prevented from being toppled over due to the fact that the crane is inclined excessively, and then the irretrievable loss is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provides a tower head supporting and rotating device of a tower crane. Through set up the binaural board in the horizontal direction, can adopt the double pin axle to connect, the atress is even during the use, and the setting of main chord is done makes tower head simple to operate, precision high, has solved current tower head slewer preparation precision low, tower head installation difficulty, the easy technical problem who wears.

The purpose of the utility model is realized by the following technical scheme:

the utility model provides a tower crane tower head supports slewer, includes base, a plurality of main chord member, otic placode, top panel and lower panel, wherein:

the base is of a rectangular box structure and consists of an upper panel, a lower panel and a coaming;

the number of the main chords is four, and the main chords are respectively arranged at four corners of the base;

each main chord is of a square tube structure;

an upper positioning plate is further arranged on one side of the base;

two sides of each main chord are provided with ear plates;

each ear plate is a double ear plate; two ends of each ear plate are provided with pin holes with the same height;

a circular plate is arranged in the base and is fixed on the lower panel through welding.

Optionally or preferably, a backing plate is further arranged at the bottom of the lower panel; the upper panel is also provided with a plurality of handrails.

Optionally or preferably, the upper positioning plate is fixed on the lower panel through a plurality of vertical plates; and a plurality of reinforcing rings are also arranged below the upper positioning plate.

Optionally or preferably, a platform ear plate is further arranged on the outer side wall of the base and close to the main chord, optionally or preferably, a plurality of circular tubes are arranged between every two adjacent ear plates; the round tube is perpendicular to the ear plate.

Optionally or preferably, a plurality of rib plates II are arranged on the circular plate, and a plurality of round steel bars are further arranged in the circular plate.

The utility model has the advantages that:

(1) according to the utility model, the supporting and slewing device and the tower head are connected by adopting the double lug plates and the double pin shafts in the horizontal direction, and the stress at the joint is uniform;

(2) the utility model is a double-lug plate with horizontally arranged pin holes, and the manufacturing precision is easy to ensure; the traditional cross-shaped pin shaft connection needs to turn the workpiece during processing, so that the processing precision is difficult to ensure;

(3) the utility model makes the tower head convenient to install;

(4) the utility model is not easy to generate abrasion and has longer service life. In the traditional cross-shaped pin shaft connection, the joint degree of a pin shaft and a pin hole is poor, and the pin shaft and the pin hole are usually required to be manually polished, so that a component is damaged.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural view (front view) of the present invention;

FIG. 2 is a schematic structural view (top view) of the present invention;

FIG. 3 is a cross-sectional view of the structure of the present invention (section A-A);

FIG. 4 is an assembly schematic of the present invention;

the reference numbers in the figures are:

1-main chord, 2-ear plate, 3-upper panel, 4-lower panel, 5-backing plate, 6-vertical plate, 7-reinforcing ring, 8-upper positioning plate, 9-handrail, 10-platform ear plate, 11-round tube, 12-rib plate I, 13-round plate, 14-rib plate II and 15-round steel.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

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 obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.

Example 1:

as shown in fig. 1-4:

the embodiment provides a tower crane tower head supports slewer, including base, a plurality of main chord member 1, otic placode 2, top panel 3 and lower panel 4, wherein:

the base is of a rectangular box structure and consists of an upper panel 3, a lower panel 4 and a coaming;

the number of the main chords 1 is four, and the main chords are respectively arranged at four corners of the base; each main chord 1 is of a square tube structure and is used for helping the tower head to be positioned;

an upper positioning plate 8 is further arranged on one side of the base and used for helping mechanisms such as a speed reducer of the swing mechanism to position;

two sides of each main chord 1 are provided with ear plates 2;

each ear plate 2 is a double ear plate; two ends of each ear plate 2 are provided with pin holes with the same height;

a circular plate 13 is arranged in the base, the circular plate 13 is fixed on the lower panel 4 through welding, and the circular plate 13 is of a circular structure, is manufactured compared with a square structure, and is more suitable for large-scale tower cranes.

In this embodiment, the top of the main chord 1 is sealed to prevent rain water from falling into it.

In this embodiment, the bottom of the lower panel 4 is further provided with a backing plate 5; a plurality of handrails 9 are also arranged on the upper panel 3.

In this embodiment, the upper positioning plate 8 is fixed on the lower panel 4 through a plurality of vertical plates 6; a plurality of reinforcing rings 7 are arranged below the upper positioning plate 8.

In this embodiment, a platform ear plate 10 is further disposed on the outer side wall of the base, near the main chord 1, and is used for connecting the tower head supporting and swiveling device of the tower crane with a platform below the tower head supporting and swiveling device.

In this embodiment, a plurality of circular tubes 11 are arranged between every two adjacent ear plates 2; the pipe 11 is mutually perpendicular with otic placode 2, and pipe 11 can improve otic placode 2's support intensity, avoids otic placode 2 to take place lateral deformation.

In this embodiment, the circular plate 13 is provided with a plurality of rib plates 14, and the circular plate 13 is further provided with a plurality of round bars 15.

The embodiment has the following advantages:

(1) in the embodiment, the supporting and rotating device and the tower head are connected by adopting the double lug plates and the double pin shafts in the horizontal direction, and the stress at the connection part is uniform;

(2) the double-lug plate with the horizontally arranged pin holes is easy to ensure the manufacturing precision; the traditional cross-shaped pin shaft connection needs to turn the workpiece during processing, so that the processing precision is difficult to ensure;

(3) the embodiment enables the tower head to be convenient to install;

(4) the embodiment is not easy to wear and has longer service life. In the traditional cross-shaped pin shaft connection, the joint degree of a pin shaft and a pin hole is poor, and the pin shaft and the pin hole are usually required to be manually polished, so that a component is damaged.

The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the utility model is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims (6)

1. The utility model provides a tower crane tower head supports slewer which characterized in that: including base, a plurality of main chord member (1), otic placode (2), top panel (3) and lower panel (4), wherein:

the base is of a rectangular box structure and consists of an upper panel (3), a lower panel (4) and enclosing plates;

the number of the main chords (1) is four, and the four main chords are respectively arranged at four corners of the base; each main chord (1) is of a square tube structure;

an upper positioning plate (8) is further arranged on one side of the base;

two sides of each main chord (1) are provided with ear plates (2);

each ear plate (2) is a double ear plate; two ends of each ear plate (2) are provided with pin holes with the same height;

a circular plate (13) is arranged in the base, and the circular plate (13) is fixed on the lower panel (4) through welding.

2. The tower crane tower head supporting and rotating device of claim 1, wherein: the bottom of the lower panel (4) is also provided with a backing plate (5); the upper panel (3) is also provided with a plurality of handrails (9).

3. The tower crane tower head supporting and rotating device of claim 1, wherein: the upper positioning plate (8) is fixed on the lower panel (4) through a plurality of vertical plates (6); a plurality of reinforcing rings (7) are further arranged below the upper positioning plate (8).

4. The tower crane tower head supporting and rotating device of claim 1, wherein: and a platform ear plate (10) is also arranged on the outer side wall of the base and close to the main chord (1).

5. The tower crane tower head supporting and rotating device of claim 1, wherein: a plurality of round pipes (11) are arranged between every two adjacent ear plates (2); the round tube (11) is vertical to the ear plate (2).

6. The tower crane tower head supporting and rotating device of claim 1, wherein: the circular plate (13) is provided with a plurality of second rib plates (14), and a plurality of round steel (15) are further arranged in the circular plate (13).

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