CN211136448U

CN211136448U - Slewing bearing type rotary platform

Info

Publication number: CN211136448U
Application number: CN201922126844.1U
Authority: CN
Inventors: 葛多州; 刘文欣; 宋宁; 陈伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-07-31
Anticipated expiration: 2029-11-29

Abstract

The utility model belongs to the technical field of slewing bearing mechanisms, in particular to a slewing bearing type rotary platform, which comprises a base, a slewing bearing and a turntable table top, wherein the outer ring of the slewing bearing is fixed on the base, the inner ring of the slewing bearing is fixed on the turntable table top, one side of the turntable table top close to the base is provided with an overall circular chain groove, a chain is laid in the chain groove, two ends of the chain are fixed in the chain groove, the chain is wound on a chain wheel driving component arranged on the base, and the chain wheel driving component drives the chain and drives the turntable table top to rotate; a plurality of positioning wheel assemblies arranged at intervals are further arranged on one side, close to the base, of the table top of the rotary table, and the positioning wheel assemblies are matched with the pneumatic positioning assemblies arranged on the base to realize positioning of the table top of the rotary table; the utility model provides a slewing bearing formula rotary platform can be used to realize that the material stack turns to or equipment station conversion, has intensity height, and the motion is steady and the noise is low, long service life, easy to maintain maintenance, anti unbalance loading advantage that the ability is strong.

Description

Slewing bearing type rotary platform

Technical Field

The utility model belongs to the technical field of slewing bearing mechanism, concretely relates to slewing bearing formula rotary platform.

Background

With the continuous progress of science and technology, the industrial automation level of China is rapidly developed. Along with the speed of social progress and the continuous acceleration of life rhythm of people, all walks of life strive to improve their own operating efficiency. In order to improve the production efficiency, in the field of manufacturing industry, various enterprises are continuously introducing automatic production lines.

The automatic production line has the advantages of high efficiency and stability, is particularly suitable for automatic production of large-batch products, and can frequently meet links of material stacking turning and equipment station conversion in the whole production process of the products.

First, conventional material stacking and turning, especially for large and heavy materials, is usually performed by a forklift, but has many disadvantages, such as large operation space, high noise, slow speed, poor positioning accuracy, and the like. Secondly, on the specific processes of some large-scale complex parts production, multi-station equipment is often required to complete in a coordinated mode, for example, station conversion of an assembly robot and a welding manipulator is achieved, and due to the fact that the site space is limited, the site area is saved most when the station position conversion is achieved by a multi-station rotation method around a center.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a slewing bearing formula rotary platform.

In order to achieve the above purpose, the utility model adopts the following technical scheme to realize:

a slewing supported rotary platform comprising:

a base;

the outer ring of the slewing bearing is fixed on the base;

the rotary table top is arranged above the base and is fixedly connected with the inner ring of the slewing bearing;

a chain groove which is circular as a whole is arranged on one side, close to the base, of the table top of the rotary table, a chain is laid in the chain groove, two ends of the chain are fixed in the chain groove, the chain is wound on a chain wheel driving assembly arranged on the base, and the chain wheel driving assembly drives the chain and drives the table top of the rotary table to rotate;

the positioning wheel assembly is matched with the pneumatic positioning assembly arranged on the base to realize the positioning of the table top of the rotary table.

Preferably, the slewing bearing type rotary platform further comprises:

the induction sheet is arranged below the chain groove;

the proximity switch is arranged on the base;

when the table top of the rotary table rotates to enable the induction sheet to approach the proximity switch, the proximity switch sends a signal and controls the disconnection of power on the chain wheel driving assembly.

Preferably, the two proximity switches are respectively a first proximity switch corresponding to the initial position of the table top of the rotary table and a second proximity switch corresponding to the target rotating position of the table top of the rotary table;

and after the induction sheet moves to the second proximity switch from the first proximity switch to the place or moves to the place from the second proximity switch to the first proximity switch, the second proximity switch or the first proximity switch sends out a signal and controls the disconnection of the power on the chain wheel driving component.

Preferably, the slewing bearing type rotary platform further comprises:

the limiting block is arranged on the base;

and a limit stop is arranged on one side of the table top of the rotary table close to the base, and when the table top of the rotary table rotates and exceeds the travel range, the limit stop and the limit block form a stop-leaning fit.

Preferably, the sprocket driving assembly comprises two tension sprockets arranged in parallel at intervals and a driving sprocket arranged between the two tension sprockets, and the driving sprocket provides rotating power through a motor and a speed reducer arranged on the base;

the chain in the chain groove winds out of the tensioning chain wheel at one side to the driving chain wheel and winds back into the chain groove from the tensioning chain wheel at the other side.

Preferably, the positioning wheel assembly comprises two rollers which are arranged below the chain groove and are arranged in parallel at intervals;

the pneumatic positioning assembly comprises a positioning support arranged on the base, a cylinder is arranged on the positioning support, a positioning pin is arranged on a cylinder shaft of the cylinder, and the positioning pin is driven to be inserted between the two rollers when the cylinder shaft of the cylinder extends out.

Compared with the prior art, the utility model discloses following technological effect has:

the utility model provides a slewing bearing formula rotary platform can be used to realize that the material stack turns to or equipment station conversion, has intensity height, and the motion is steady and the noise is low, long service life, easy to maintain maintenance, anti unbalance loading advantage that the ability is strong.

The utility model provides a this slewing bearing formula rotary platform can be applied to in large-scale, heavy material transfer chain and the automated production assembly line. In particular, in the fields of aerospace, railways, bridges, vehicles, ships, buildings, entertainment facilities and the like.

Drawings

Fig. 1 is a schematic view of a slewing bearing-type rotating platform provided by the present invention;

FIG. 2 is an exploded view of the pivoting support platform of FIG. 1;

FIG. 3 is a schematic view of the turntable top of the present invention;

FIG. 4 is a schematic view of the sprocket drive assembly of the present invention;

FIG. 5 is a schematic view of the middle positioning wheel assembly and the pneumatic positioning assembly of the present invention;

the reference numbers in the figures illustrate: 10-a base, 11-a limiting block, 12-a tension sprocket, 13-a driving sprocket, 14-a motor, 15-a speed reducer, 16-a positioning support, 17-a cylinder, 18-a positioning pin, 20-a pivoting support, 21-an outer ring, 22-an inner ring, 30-a turntable table top, 31-a chain groove, 32-a chain, 33-a limiting stopper, 34-a roller, 40-an induction sheet, 50-a proximity switch, 51-a first proximity switch, 52-a second proximity switch,

Detailed Description

In order to make the technical means, creation characteristics, achievement purpose and efficacy of the utility model easy to understand and understand, the utility model is further clarified by combining the specific drawings.

It should be noted that, in the present invention, when an element is referred to as being "fixed" to another element, it may be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 and 2, the present invention provides a rotary supporting rotary platform, which comprises a base 10, a rotary support 20 and a rotary table top 30; the base 10 mainly plays a supporting role and is used for supporting parts such as a slewing bearing 20, a turntable table top 30 and the like, and the bottom of the base 10 is fixed on the ground through bolt connection. The outer ring 21 of the slewing bearing 20 is fixed on the base 10, and the turntable table top 30 is arranged above the base 10 and is fixedly connected with the inner ring 22 of the slewing bearing 20. A chain groove 31 which is circular integrally is formed in one side, close to the base 10, of the turntable table top 30, a chain 32 is laid in the chain groove 31, two ends of the chain 32 are fixed in the chain groove 31, the chain 32 is wound on a chain wheel driving assembly arranged on the base 10, and the chain wheel driving assembly drives the chain 32 and drives the turntable table top 30 to rotate; a plurality of positioning wheel assemblies arranged at intervals are further arranged on one side of the turntable table top 30 close to the base 10, and the positioning wheel assemblies are matched with the pneumatic positioning assemblies arranged on the base 10 to realize the positioning of the turntable table top 30.

The utility model provides a this slewing bearing formula rotary platform, through the 20 fixed revolving stage mesa 30 of the supporting of slewing bearing who sets up on base 10, utilize the sprocket drive subassembly that sets up on base 10 to provide the power that revolving stage mesa 30 rotated, this slewing bearing formula rotary platform can be used to realize material stack and turn to or equipment station conversion, it is high to have intensity, the motion is steady and the noise is low, long service life, easy to maintain, the advantage that anti unbalance loading ability is strong, and this slewing bearing formula rotary platform need not other auxiliary support parts, the unbalance loading weight can be by several tons to tens tons of different; furthermore, the utility model provides a slewing bearing formula rotary platform adopts the drive mode of sprocket chain, has the advantage that stability is high, has ensured equipment moving reliability, and sprocket chain easy to maintain maintains the debugging convenience simultaneously.

Further, as shown in fig. 3, according to the present invention, in order to control the rotation angle of the turntable top 30, the rotary supporting type rotary platform of the present invention further includes a sensing piece 40 and a proximity switch 50, wherein the sensing piece 40 is disposed below the chain groove 31; the proximity switch 50 is arranged on the base 10; when the turntable deck 30 rotates to make the sensing piece 40 approach the proximity switch 50, the proximity switch 50 sends a signal and controls the power on the sprocket wheel driving assembly to be cut off.

Further, the proximity switch 50 is provided with two first proximity switches 51 corresponding to the initial position of the table top 30 of the turntable and two second proximity switches 52 corresponding to the target position of the rotation of the table top 30 of the turntable; and after the sensing piece 40 moves from the first proximity switch 51 to the second proximity switch 52 to the position, or moves from the second proximity switch 52 to the first proximity switch 51 to the position, the second proximity switch 52 or the first proximity switch 51 both sends out a signal and controls the disconnection of the power on the sprocket drive assembly.

The utility model discloses in, when meetting the condition of proruption power failure, sprocket drive assembly loses power, and revolving stage mesa 30 still can continue to rotate under inertial effect, in order to prevent that equipment from damaging or taking place the incident, the utility model provides a slewing bearing formula rotary platform still includes stopper 11, stopper 11 arrange on base 10, revolving stage mesa 30 closes on one side of base 10 is equipped with limit stop 33, and is in when revolving stage mesa 30 rotates and surpasss the stroke range, limit stop 33 with stopper 11 constitute to keep off and lean on the cooperation. That is, the limit block 11 disposed on the base 10 collides with the limit stopper 33 disposed on the turntable table 30, so that the turntable table 30 stops rotating.

As shown in fig. 4, in the present invention, as a specific arrangement manner of the sprocket driving assembly, the sprocket driving assembly includes two tension sprockets 12 arranged in parallel at intervals, and a driving sprocket 13 disposed between the two tension sprockets 12, wherein the driving sprocket 13 provides a rotating power through a motor 14 and a speed reducer 15 disposed on the base 10; the chain 32 in the chain slot 31 is wound out from the tension sprocket 12 on one side to the driving sprocket 13, and wound back into the chain slot 31 from the tension sprocket 12 on the other side. Specifically, the motor 14 adopts a YE2 series three-phase asynchronous motor, and completes power output through a box type bevel gear and bevel gear reducer. The YE2 series three-phase asynchronous motor has the advantages of strong overload resistance and interference resistance, improves the running stability of equipment, and the selected box-type bevel gear and bevel gear speed reducer has the advantages of high transmission efficiency, high precision, large transmission ratio, high output torque, compact structure and convenience in installation.

In the utility model, the positioning wheel component and the pneumatic positioning component are matched to realize the locking of the rotary table top 30, and specifically, as shown in the combined figure 5, the positioning wheel component comprises two rollers 34 which are arranged below the chain groove 31 and are arranged in parallel at intervals; the pneumatic positioning assembly comprises a positioning support 16 arranged on the base 10, an air cylinder 17 is arranged on the positioning support 16, a positioning pin 18 is arranged on an air cylinder shaft of the air cylinder 17, and when the air cylinder shaft of the air cylinder 17 extends out, the positioning pin 18 is driven to be inserted between the two rollers 34, so that the positioning pin 18 can prevent the rotary table top 30 from rotating, and when the air cylinder shaft of the air cylinder 17 retracts, the positioning pin 18 is driven to retract and is in an avoiding position with the two rollers 34, so that the rotary table top 30 can rotate without obstacles.

The rotary supporting type rotary platform provided by the invention is further explained by a specific rotating mode as follows:

(1) initial state: the motor 14 is powered off, the air cylinder 17 extends out, the positioning pin 18 is inserted between the two rollers 34, and the rotary table top 30 is locked and fixed;

(2) starting operation to the target position: the cylinder 17 retracts, the positioning pin 18 retracts and is in an avoiding position with the two rollers 34, the rotary table top 30 is released, the motor 14 is electrified, the power output enables the driving chain wheel 13 to rotate, the chain 32 laid in the chain groove 31 is driven to rotate, and then the rotary table top 30 is driven to rotate;

the rotary table top 30 rotates to 180 degrees, the induction sheet 40 moves to the position of the second proximity switch 52, the second proximity switch 52 obtains a signal and correspondingly controls the motor 14 to be powered off, the rotary table top 30 stops rotating, the air cylinder 17 extends out, the positioning pin 18 is inserted between the two rollers 34, and the rotary table top 30 is fixed and cannot rotate;

(3) and (4) re-operating to the initial position: the air cylinder 17 retracts, the positioning pin 18 retracts and is located at the avoiding position with the two rollers 34, the rotary table top 30 is released, the motor 14 is powered on, the rotary table top 30 is driven to rotate reversely to 0 degrees, the induction sheet 40 moves to the first proximity switch 51, the first proximity switch 51 obtains a signal and correspondingly controls the motor 14 to be powered off, the rotary table top 30 stops rotating, the air cylinder 17 extends, the positioning pin 18 is inserted between the two rollers 34, and the rotary table top 30 is fixed and cannot rotate.

The rotary supporting type rotary platform provided by the utility model uses the proximity switch to identify the position, realizes automatic control, and the pneumatic positioning component is matched with the positioning wheel component to realize mechanical positioning, thereby greatly improving the positioning precision; the utility model provides a main component of this slewing bearing formula rotary platform all adopts high-quality carbon element structural steel square pipe and steel sheet welding to form, and overall structure is reliable and stable, and bearing capacity is strong.

The foregoing shows and describes the general principles, essential features, and features of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the description of the above embodiments and the description is only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and these changes and modifications are all within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A slewing bearing-type rotating platform, comprising:

a base (10);

the outer ring (21) of the slewing bearing (20) is fixed on the base (10);

the rotary table top (30) is arranged above the base (10) and is fixedly connected with the inner ring (22) of the slewing bearing (20);

a chain groove (31) which is circular as a whole is formed in one side, close to the base (10), of the rotary table top (30), a chain (32) is laid in the chain groove (31), two ends of the chain (32) are fixed in the chain groove (31), the chain (32) is wound on a chain wheel driving assembly arranged on the base (10), and the chain wheel driving assembly drives the chain (32) and drives the rotary table top (30) to rotate;

the positioning wheel assembly is matched with a pneumatic positioning assembly arranged on the base (10) to realize the positioning of the rotary table top (30).

2. The slewing bearing rotary platform of claim 1, further comprising:

the induction sheet (40) is arranged below the chain groove (31);

a proximity switch (50) arranged on the base (10);

when the rotary table top (30) rotates to enable the sensing piece (40) to approach the proximity switch (50), the proximity switch (50) sends out a signal and controls the power on the chain wheel driving assembly to be disconnected.

3. The rotary table of claim 2, wherein the proximity switch (50) is provided with two first proximity switches (51) corresponding to the initial position of the table top (30) and a second proximity switch (52) corresponding to the target position of rotation of the table top (30);

and after the induction sheet (40) moves from the first proximity switch (51) to the second proximity switch (52) to be in place or from the second proximity switch (52) to the first proximity switch (51) to be in place, the second proximity switch (52) or the first proximity switch (51) sends out a signal and controls the power on the chain wheel driving assembly to be disconnected.

4. The slewing bearing rotary platform of claim 1, further comprising:

a limiting block (11) arranged on the base (10);

and a limit stop (33) is arranged on one side of the turntable table top (30) close to the base (10), and when the turntable table top (30) rotates and exceeds the travel range, the limit stop (33) and the limit block (11) form a blocking leaning fit.

5. The rotary supporting type rotary platform as claimed in claim 1, wherein the sprocket driving assembly comprises two tension sprockets (12) arranged in parallel and spaced, and a driving sprocket (13) arranged between the two tension sprockets (12), the driving sprocket (13) provides rotational power via a motor (14) and a reducer (15) arranged on the base (10);

the chain (32) in the chain groove (31) winds out of the tension sprocket (12) on one side to the driving sprocket (13) and winds back into the chain groove (31) from the tension sprocket (12) on the other side.

6. The rotary pivoting platform of claim 1, wherein the positioning wheel assembly comprises two rollers (34) disposed below the chain groove (31) and spaced in parallel;

the pneumatic positioning assembly comprises a positioning support (16) arranged on the base (10), a cylinder (17) is arranged on the positioning support (16), a positioning pin (18) is arranged on a cylinder shaft of the cylinder (17), and the positioning pin (18) is driven to be inserted between the two rollers (34) when the cylinder shaft of the cylinder (17) extends out.