CN213730814U

CN213730814U - Polishing device for inner wall of seamless steel pipe

Info

Publication number: CN213730814U
Application number: CN202022780936.4U
Authority: CN
Inventors: 唐顺茂
Original assignee: Hengyang Hongwei Machinery Co ltd
Current assignee: Hengyang Hongwei Machinery Co ltd
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-07-20
Anticipated expiration: 2030-11-26

Abstract

The utility model discloses a grinding device for seamless steel pipe inner wall, including workstation, support piece, polishing stick and motor, the polishing stick includes the tubulose casing, the tubulose casing is fixed on the motor output shaft of motor, just the inboard of tubulose casing has the cavity, the inner wall of tubulose casing passes through fixed column and motor output shaft fixed connection, the opening has been seted up to the outside of tubulose casing, and the opening inboard is installed the arc, all install the polishing layer on the lateral wall of tubulose casing and arc, install flexible pipe between arc and the motor output shaft, flexible pipe includes outer pipe box, inner pipe box and tightens up the spring; through setting up the stick of polishing of having installed, centrifugal force when utilizing the rotation can make the arc pop out to the outside, when the arc popped out to the outside, can be under the unchangeable circumstances in motor and steel pipe position, increase and polish the compactness of stick and the contact of steel pipe inner wall, and then satisfy the requirement of polishing.

Description

Polishing device for inner wall of seamless steel pipe

Technical Field

The utility model belongs to the technical field of grinding device, concretely relates to grinding device for seamless steel pipe inner wall.

Background

The electric grinding machine is widely used for finish machining and surface polishing treatment in the hardware industry.

The polishing device for the inner wall of the existing seamless steel pipe adopts a traditional driving mode and a fixing mode, so that the polishing rod can be ensured to be in close enough contact with the inner wall of the steel pipe only by adjusting the position of the steel pipe when the inner wall of the seamless steel pipe is polished, and then the polishing requirement can be met.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a grinding device for seamless steel pipe inner wall to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a polishing device for the inner wall of a seamless steel pipe comprises a workbench, a support piece, a polishing rod and a motor, wherein the polishing rod driven by the motor is installed at the top of the workbench, the motor is fixed at the top of the workbench, the support piece is installed at the opposite end of the top of the workbench and the motor, the top of the support piece has a radian, the polishing rod comprises a tubular shell, the tubular shell is fixed on a motor output shaft of the motor, a cavity is arranged at the inner side of the tubular shell, the inner wall of the tubular shell is fixedly connected with the motor output shaft through a fixed column, an opening is formed in the outer side of the tubular shell, an arc plate is installed inside the opening, polishing layers are installed on the outer side walls of the tubular shell and the arc plate, a telescopic pipe is installed between the arc plate and the motor output shaft, and comprises an outer pipe sleeve, an inner pipe sleeve and a tightening spring, the inner pipe sleeve is inserted into the inner side of the outer pipe sleeve, and a tightening spring is arranged between the inner pipe sleeve and the outer pipe sleeve.

Furthermore, a limiting ring is installed on the outer layer of the top of the inner pipe sleeve, the limiting ring is located on the top of the outer pipe sleeve, and the inner pipe sleeve and the limiting ring are of an integrated structure.

Furthermore, two ends of the fixing column are respectively and fixedly connected with the output shaft of the motor and the tubular shell through bolts.

Furthermore, the inner sleeve is fixedly connected with the first end of the tightening spring, and the second end of the tightening spring is fixedly connected with the inner wall of the outer sleeve.

Furthermore, the top of the inner pipe sleeve is fixedly connected with the arc-shaped plate, and the bottom of the outer pipe sleeve is fixedly connected with the output shaft of the motor.

Furthermore, the number of the arc plates is three, and the three arc plates are distributed annularly by taking the axis of the motor output shaft as the center of a circle.

Further, the radian of the outer side wall of the arc-shaped plate is consistent with that of the outer side wall of the grinding rod.

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. through setting up the stick of polishing of having installed, centrifugal force when utilizing the rotation can make the arc pop out to the outside, when the arc popped out to the outside, can be under the unchangeable circumstances in motor and steel pipe position, increase and polish the compactness of stick and the contact of steel pipe inner wall, and then satisfy the requirement of polishing, and when the stick of polishing does not rotate, the arc can reset under the effect of elasticity promptly, does not influence the use of the stick of polishing.

2. Through having set up the spacing ring, can carry on spacingly to inner tube cover and with the arc of inner tube sheathed connection to the radian on arc plate surface is unanimous with the radian on tubulose casing surface.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the polishing rod of the present invention;

fig. 3 is a schematic view of the internal structure of the telescopic tube of the present invention;

in the figure: 1. a work table; 2. a support member; 3. grinding a rod; 4. a motor; 5. polishing the layer; 6. an output shaft of the motor; 7. a tubular housing; 8. an arc-shaped plate; 9. a telescopic pipe; 10. an outer pipe sleeve; 11. an inner pipe sleeve; 12. a limiting ring; 13. tightening the spring; 14. fixing a column; 15. a cavity.

Detailed Description

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

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like 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, and 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 therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, the utility model provides a technical scheme: a polishing device for the inner wall of a seamless steel pipe comprises a workbench 1, a support piece 2, a polishing rod 3 and a motor 4, wherein the polishing rod 3 driven by the motor 4 is installed at the top of the workbench 1, the motor 4 is fixed at the top of the workbench 1, the support piece 2 is installed at the top of the workbench 1 and the opposite end of the motor 4, the top of the support piece 2 has radian, the polishing rod 3 comprises a tubular shell 7, the tubular shell 7 is fixed on a motor output shaft 6 of the motor 4, a cavity 15 is arranged on the inner side of the tubular shell 7, the inner wall of the tubular shell 7 is fixedly connected with the motor output shaft 6 through a fixed column 14, two ends of the fixed column 14 are respectively and fixedly connected with the motor output shaft 6 and the tubular shell 7 through bolts, an opening is formed in the outer side of the tubular shell 7, an arc plate 8 is installed on the inner side of the opening, polishing layers 5 are installed on the outer side walls of the tubular shell 7 and the arc plate 8, install flexible pipe 9 between arc 8 and the motor output shaft 6, flexible pipe 9 includes outer pipe box 10, interior pipe box 11 and tighten up spring 13, interior pipe box 11 is inserted and is established the inboard at outer pipe box 10, install between interior pipe box 11 and the outer pipe box 10 and tighten up spring 13, tighten up pipe box 11 fixed connection in the first end of spring 13, tighten up the second end of spring 13 and the inner wall fixed connection of outer pipe box 10, the stick of polishing 3 has been installed through the setting, centrifugal force when utilizing the rotation, can make arc 8 pop out to the outside, when arc 8 pops out to the outside, can be under the unchangeable condition in motor 4 and steel pipe position, increase and polish the compactness of stick of polishing 3 and steel pipe inner wall contact, and then satisfy the requirement of polishing, and when polishing stick 3 does not rotate, arc 8 can reset under the effect of elasticity, do not influence the use of polishing stick 3.

In this embodiment, the outer layer at the top of the inner pipe sleeve 11 is provided with a limiting ring 12, the limiting ring 12 is located at the top of the outer pipe sleeve 10, the inner pipe sleeve 11 and the limiting ring 12 are of an integrated structure, the top of the inner pipe sleeve 11 is fixedly connected with the arc-shaped plate 8, and the bottom of the outer pipe sleeve 10 is fixedly connected with the motor output shaft 6.

In this embodiment, the number of the arc plates 8 is three, and the three arc plates 8 are distributed annularly by taking the axis of the motor output shaft 6 as the center of a circle.

In this embodiment, the radian of the outer side wall of the arc plate 8 is consistent with that of the outer side wall of the polishing rod 3.

The utility model discloses a theory of operation and use flow: when the device is used, a steel pipe to be polished is placed on the support piece 2, then the steel pipe is moved to the position of the polishing rod 3, the polishing rod 3 is kept in contact with the inner wall of the steel pipe, the polishing rod 3 is driven to rotate through the motor 4, the arc plate 8 can be popped outwards by utilizing the centrifugal force during rotation, when the arc plate 8 is popped outwards, the tightness of the contact between the polishing rod 3 and the inner wall of the steel pipe can be increased under the condition that the positions of the motor 4 and the steel pipe are not changed, the polishing requirement is further met, and when the polishing rod 3 does not rotate, the arc plate 8 can reset under the action of the elastic force of the tightening spring 13, so that the use of the polishing rod 3 is not influenced; through having set up spacing ring 12, can carry on spacingly to inner tube cover 11 and the arc 8 of being connected with inner tube cover 11 to the radian on arc 8 surface is unanimous with the radian on tubulose casing 7 surface.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The grinding device for the inner wall of the seamless steel pipe comprises a workbench (1), a support piece (2), a grinding rod (3) and a motor (4), wherein the grinding rod (3) driven by the motor (4) is installed at the top of the workbench (1), the motor (4) is fixed at the top of the workbench (1), the support piece (2) is installed at the top of the workbench (1) and the opposite end of the motor (4), the top of the support piece (2) is provided with an arc, the grinding rod (3) is characterized by comprising a tubular shell (7), the tubular shell (7) is fixed on a motor output shaft (6) of the motor (4), a cavity (15) is arranged on the inner side of the tubular shell (7), the inner wall of the tubular shell (7) is fixedly connected with the motor output shaft (6) through a fixing column (14), and an opening is formed in the outer side of the tubular shell (7), arc (8) are installed to the opening inboard, all install on the lateral wall of tubulose casing (7) and arc (8) and polish layer (5), install flexible pipe (9) between arc (8) and motor output shaft (6), flexible pipe (9) include outer pipe box (10), inner pipe box (11) and tighten up spring (13), and inner pipe box (11) are inserted and are established the inboard of outer pipe box (10), install between inner pipe box (11) and outer pipe box (10) and tighten up spring (13).

2. The grinding device for the inner wall of the seamless steel pipe according to claim 1, wherein: the outer layer of the top of the inner pipe sleeve (11) is provided with a limiting ring (12), the limiting ring (12) is positioned at the top of the outer pipe sleeve (10), and the inner pipe sleeve (11) and the limiting ring (12) are of an integrated structure.

3. The grinding device for the inner wall of the seamless steel pipe according to claim 1, wherein: and two ends of the fixing column (14) are respectively and fixedly connected with the motor output shaft (6) and the tubular shell (7) through bolts.

4. The grinding device for the inner wall of the seamless steel pipe according to claim 1, wherein: the inner pipe sleeve (11) is fixedly connected with the first end of the tightening spring (13), and the second end of the tightening spring (13) is fixedly connected with the inner wall of the outer pipe sleeve (10).

5. The grinding device for the inner wall of the seamless steel pipe according to claim 1, wherein: the top of the inner pipe sleeve (11) is fixedly connected with the arc-shaped plate (8), and the bottom of the outer pipe sleeve (10) is fixedly connected with the motor output shaft (6).

6. The grinding device for the inner wall of the seamless steel pipe according to claim 1, wherein: the number of the arc-shaped plates (8) is three, and the three arc-shaped plates (8) are distributed annularly by taking the axis of the motor output shaft (6) as the center of a circle.

7. The grinding device for the inner wall of the seamless steel pipe according to claim 1, wherein: the radian of the outer side wall of the arc-shaped plate (8) is consistent with that of the outer side wall of the grinding rod (3).