A kind of inner support device for rotary disc

Abstract

An internal support device for a rotary table, relating to the field of cement pipe processing. It includes a column and a supporting cylinder, the supporting cylinder being connected to the top of the column. The column is located at the center of the rotary table, and the centerlines of the supporting cylinder, the column, and the rotary table are collinear. The top of the rotary table is used to hold a pipe core, with the column and supporting cylinder located inside the pipe core, and a gap provided between the supporting cylinder and the pipe core. The supporting cylinder has an annular groove on its circumference, and a capsule is placed within the annular groove. The capsule is filled with a medium, causing it to expand outwards and conform to the inner wall of the pipe core. During operation, this invention generates significant friction, effectively preventing relative displacement between the pipe core and the rotary table.

Description

Technical Field

[0001] This utility model relates to the field of cement pipe processing, and in particular to an internal support device for a rotary table. Background Technology

[0002] Currently, in production and processing, wire winding machines are used to produce reinforced concrete cement pipes (RCP) or prestressed concrete cylinder pipes (PCCP) through vertical wire winding technology.

[0003] To wind prestressed steel wire onto the outer wall of RCP or PCCP mandrels, a rotary table is needed to hold the mandrel and rotate under the drive of a main rotary motor, coupling, reducer, and gears (e.g., CN202120580955.4, named the main rotary mechanism of the wire winding machine). During the rotation of the mandrel driven by the rotary table, the lifting trolley rises and falls evenly, ensuring that the prestressed steel wire is wound onto the surface of the mandrel according to the designed pitch, meeting the process requirements.

[0004] Calculations show that the original wire winding machine is suitable for winding prestressed high-strength steel wire with a diameter of Φ5-7mm. When winding Φ7mm steel wire, the normal winding tension is 4300N.

[0005] If the diameter of the reinforcing bar increases to Φ10mm or more, the minimum winding tension is 8620N. In addition to the original top clamping cap, to prevent the core from slipping or tipping under high tension, it is necessary to increase the friction between the rotary table and the core, and to add a mechanical structure to prevent tipping.

[0006] Currently, the patent document published by the State Intellectual Property Office, with patent number CN202120467639.6 and titled "A Guide Seat and a Winding Machine Including the Guide Seat," only provides a means to increase friction, but lacks a means to prevent tipping. Furthermore, the increase in friction between the guide seat and the core in this patent is limited; calculations show it can only increase friction by about 20%, which is insufficient for operating conditions when the tension is doubled. Utility Model Content

[0007] To address the above problems, this utility model provides an internal support device for a rotary table that has a simple structure and improves the stability of core processing.

[0008] The technical solution of this utility model is: an internal support device for a rotary table, comprising a column and a support circle, wherein the support circle is connected to the top of the column, the column is located at the center of the rotary table, and the center line of the support circle, the center line of the column and the center line of the rotary table are located on the same straight line.

[0009] The top of the rotary table is used to place the core tube, the column and the support body are located inside the core tube, and a gap is provided between the support body and the core tube;

[0010] The supporting body has an annular groove on its circumference, and a capsule is placed in the annular groove. The capsule is used to fill the medium, so that the capsule expands outward and fits against the inner wall of the tube core.

[0011] The medium is air, water, or oil.

[0012] The upper part of the supporting cylindrical body is shaped like a frustum, and the lower part is shaped like a cylinder.

[0013] The supporting cylindrical body is detachably connected to the column.

[0014] In the vertical direction, the height of the top surface of the supporting body is greater than 1 / 2 of the height of the core.

[0015] The column is fixedly connected to the rotary table.

[0016] In operation, after the core is hoisted and placed on the turntable, the bladder is filled with the medium and expands outward to fit tightly against the inner wall of the core. This tight fit along the entire circumference generates significant friction, effectively preventing relative displacement between the core and the turntable. Furthermore, since the height of the supporting body after installation is greater than half the length of the core, the risk of core tipping over is also reduced. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In the drawings, the parts are not necessarily drawn to scale.

[0018] Figure 1 This is a structural schematic diagram of the present invention.

[0019] Figure 2 yes Figure 1 Top view,

[0020] Figure 3 This is a partial schematic diagram of the supporting cylindrical body and the core tube;

[0021] In the diagram, 1 is the column, 2 is the supporting body, 3 is the rotary table, 4 is the core tube, 5 is the gap, 6 is the annular groove, 7 is the capsule, 8 is the prestressed steel wire, 9 is the pipeline, and 10 is the rotary joint. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0023] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," "right," "vertical," "horizontal," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] This utility model is as follows Figure 1-3 As shown, an internal support device for a rotary table includes a column 1 and a support body 2. The support body 2 is connected to the top of the column 1. The column 1 is located at the center of the rotary table 3. The center line of the support body 2, the center line of the column 1, and the center line of the rotary table 3 are located on the same straight line.

[0026] The top of the rotary table 3 is used to place the core tube 4. The column 1 and the supporting body 2 are located inside the core tube 4. A gap 5 is provided between the supporting body 2 and the core tube 4.

[0027] The supporting body 2 has an annular groove 6 on its circumference, and a capsule 7 is provided in the annular groove. The capsule is used to fill the medium, so that the capsule 7 expands outward and fits against the inner wall of the core 4.

[0028] In operation, when the core rotates on the turntable and the prestressed steel wire 8 is wound around its surface, this invention prevents relative displacement between the core and the turntable, and also prevents the core from tipping over when wound to the top, thus avoiding production accidents. After the core is hoisted and placed on the turntable, the bladder is filled with a medium and expands outward, tightly fitting against the inner wall of the core. This tight fit along the entire circumference generates significant friction, effectively preventing relative displacement between the core and the turntable. Furthermore, because the height of the supporting body after installation is greater than half the length of the core, the risk of core tipping over is also reduced.

[0029] The medium can be air, water, or oil. It can be filled with air, water, or oil, depending on the specific circumstances.

[0030] In the application, a rotary joint 10 is installed in the middle of the rotary table 3. The rotary joint 10 is a universal accessory that can supply water, air, and oil while the workpiece is rotating. That is, water, air, and oil can be continuously supplied by the rotary joint 10 while the rotary table 3 is rotating.

[0031] The air supply line, oil pressure line, or water pressure line connected to the capsule can pass through the supporting body, and the connecting line 9 passes through the column and connects to the rotary joint located at the center of the rotary table 3. The rotary joint is connected to the water, air, and oil supply lines outside the rotary table 3.

[0032] The upper part of the supporting cylindrical body 2 is shaped like a frustum, and the lower part is shaped like a cylinder. The frustum shape can serve as a guide when the tube core is hoisted and placed.

[0033] The supporting body 2 is detachably connected to the column 1. The column supports the supporting body 2, which facilitates disassembly and assembly, and makes it easy to replace the cores of different specifications when processing them.

[0034] In the vertical direction, the height of the top surface of the supporting body 2 is greater than half the height of the core. This reduces the risk of the core tipping over.

[0035] The column 1 is fixedly connected to the rotary table 3. The two are fixedly connected and the connection is reliable.

[0036] In application, the capsule expands outward and stops upon contacting the inner wall of the core. At this point, the outer wall of the capsule is in close contact with the inner wall of the core, which not only prevents slippage but also effectively prevents tipping due to the height of the support body mounted on the column.

[0037] Regarding the information disclosed in this case, the following points need to be clarified:

[0038] (1) The accompanying drawings of the embodiments disclosed in this case only involve the structures involved in the embodiments disclosed in this case. Other structures can refer to the general design.

[0039] (2) Where there is no conflict, the embodiments and features disclosed in this case can be combined with each other to obtain new embodiments;

[0040] The above are merely specific embodiments disclosed in this case, but the scope of protection of this disclosure is not limited thereto. The scope of protection disclosed in this case shall be determined by the scope of protection of the claims.

Claims

1. An inner bolster device for a carousel, characterized in that, It includes a column and a supporting circle, the supporting circle being connected to the top of the column, the column being located at the center of the rotary table, and the center line of the supporting circle, the center line of the column, and the center line of the rotary table being on the same straight line. The top of the rotary table is used to place the core tube, the column and the support body are located inside the core tube, and a gap is provided between the support body and the core tube; The supporting body has an annular groove on its circumference, and a capsule is placed in the annular groove. The capsule is used to fill the medium, so that the capsule expands outward and fits against the inner wall of the tube core.

2. An inner bolster device for a carousel according to claim 1, wherein The medium is air, water, or oil.

3. An inner bolster device for a carousel as defined in claim 1, wherein The upper part of the supporting cylindrical body is shaped like a frustum, and the lower part is shaped like a cylinder.

4. An inner bolster device for a carousel according to claim 1, wherein The supporting cylindrical body is detachably connected to the column.

5. An inner bolster device for a carousel according to claim 1, wherein In the vertical direction, the height of the top surface of the supporting body is greater than 1 / 2 of the height of the core.

6. An inner bolster device for a carousel according to claim 1, wherein The column is fixedly connected to the rotary table.

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