CN110773651A

CN110773651A - Portable self-centering reamer

Info

Publication number: CN110773651A
Application number: CN201911071422.7A
Authority: CN
Inventors: 邓斌
Original assignee: Wuhan Wei Yan Engineering Technology Co Ltd
Current assignee: Wuhan Wei Yan Engineering Technology Co Ltd
Priority date: 2019-11-05
Filing date: 2019-11-05
Publication date: 2020-02-11

Abstract

The invention relates to a portable self-centering reamer, which comprises a fixed rod, a conical rod and a reamer body, wherein blind holes are respectively formed in two sides of the fixed rod, a guide groove and a sliding groove are respectively formed in the upper surface and the lower surface of the blind hole, a compression spring is fixedly connected in the blind holes, one end of the compression spring is connected with a sleeve, the sleeve is fixed on the guide groove in a sliding manner under the action of the compression spring, the sleeve penetrates through the sliding groove, a screw rod is connected with the sleeve in a threaded manner, an end cover is detachably connected at the outlet of the blind hole, the reamer body comprises an annular spring and a plurality of expansion blocks, the annular spring is sleeved on the plurality of expansion blocks to form the reamer body, the reamer body adopts a stepped shaft design, the reamer body is provided with a conical hole which is coaxially arranged, the bottom of the reamer body is provided with a threaded hole, by adopting the tool, the purposes of convenient carrying and good reaming effect are achieved.

Description

Portable self-centering reamer

Technical Field

The invention relates to the field of pipeline machining, in particular to a portable self-centering reamer.

Background

In the boiler trade, the production of maximum is the production of steel pipe, uses at the boiler steel pipe, need weld and rust cleaning and chamfer to the steel pipe, all need press from both sides tight and rotatory the ability uses well to the pipe, and after processing, often can meet the condition that the burr appears in the mouth of pipe or shriveled, and this kind of pipeline can not effectual connection in the boiler steel pipe uses, for this reason, the urgent need is installed always and is solved current problem.

Disclosure of Invention

In order to solve the technical problems, the invention aims to provide a portable self-centering reamer, which achieves the purposes of convenience in carrying and good reaming effect.

In order to achieve the purpose, the portable self-centering reamer comprises a fixed rod, a conical rod and a reamer body, wherein blind holes are formed in two sides of the fixed rod, a guide groove and a sliding groove are formed in the upper surface and the lower surface of each blind hole respectively, a compression spring is fixedly connected in each blind hole, one end of each compression spring is connected with a sleeve, the sleeves are fixed on the guide grooves in a sliding mode under the action of the compression springs, the sleeves penetrate through the sliding grooves, a screw rod is connected in each sleeve in a threaded mode, and an outlet of each blind hole is detachably connected with an end cover;

the hole expander comprises an annular spring and a plurality of expansion blocks, the annular spring is sleeved on the expansion blocks to form the hole expander, the hole expander adopts a stepped shaft design, and the hole expander is provided with coaxially arranged tapered holes;

the bottom of the reaming body is provided with a threaded hole which is matched and connected with the screw rod, the fixing rod is fixedly provided with a nut, and the conical rod is in threaded connection with the nut and penetrates through the fixing rod.

Further, the cross section of the guide groove is convex.

Further, the end cover is in threaded connection with an outlet of the blind hole.

Further, the expansion blocks are six.

Furthermore, the top of the conical rod adopts a fillet design.

Further, the taper angle of the tapered rod is 30 °.

Compared with the prior art, the invention has the beneficial effects that:

firstly, taking out the fixed rod, abutting the sleeve with the end cover under the action of the compression spring, then taking out the screw rod, enabling two ends of the thread to be respectively connected to the sleeve and the reaming body, thereby realizing the fixation of the fixed rod and the reaming body, then taking out the conical rod to penetrate through the fixed rod and be inserted into the reaming body, thereby realizing the expansion of the expansion block, and achieving the purpose of reaming;

in conclusion, the device can achieve the purposes of convenience in carrying and good reaming effect.

Drawings

FIG. 1 is a schematic view of a portable self-centering reamer of the present invention;

fig. 2 is a perspective view of a reamer body of a portable self-centering reamer of the present invention.

In the figure: 1. fixing the rod; 11. blind holes; 12. a guide groove; 13. a chute; 14. a compression spring; 15. a sleeve; 16. a screw; 17. an end cap; 18. a nut; 2. a tapered rod; 3. a reamer body; 31. an annular spring; 32. expanding blocks; 33. a tapered hole; 34. a threaded bore.

Detailed Description

To explain the technical content, structural features, attained objects and effects of the present invention in detail, embodiments are described below in detail with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the 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 taken as limiting the scope of the present invention.

Referring to fig. 1 and fig. 2, the present invention provides an embodiment:

the invention provides a portable self-centering reamer, which comprises a fixed rod 1, a conical rod 2 and a reamer body 3, wherein blind holes 11 are formed in two sides of the fixed rod 1, a guide groove 12 and a sliding groove 13 are formed in the upper surface and the lower surface of each blind hole 11 respectively, a compression spring 14 is fixedly connected in each blind hole 11, one end of each compression spring 14 is connected with a sleeve 15, each sleeve 15 is fixed on each guide groove 12 in a sliding manner under the action of each compression spring 14, each sleeve 15 penetrates through each sliding groove 13, a screw 16 is connected in each sleeve 15 in a threaded manner, and an end cover 17 is detachably connected at an outlet of each blind hole 11;

the reaming body 3 comprises an annular spring 31 and a plurality of expansion blocks 32, the annular spring 31 is sleeved on the plurality of expansion blocks 32 to form the reaming body 3, the reaming body 3 adopts a stepped shaft design, and the reaming body 3 is provided with a conical hole 33 which is coaxially arranged;

the bottom of the hole expanding body 3 is provided with a threaded hole 34 which is matched and connected with the screw 16, the fixing rod 1 is fixedly provided with a nut 18, and the conical rod 2 is in threaded connection with the nut 18 and penetrates through the fixing rod 1.

First, the fixing rod 1 is removed, the sleeve 15 is abutted against the end cap 17 by the compression spring 14, then the screw 16 is taken out, so that the two ends of the thread are respectively connected to the sleeve 15 and the reaming body 3, thereby realizing the fixation of the fixed rod 1 and the reaming body 3, then the tapered rod 2 is taken out to pass through the fixed rod 1 and is inserted into the reaming body 3, thereby realizing the expansion of the expansion block 32 and achieving the purpose of reaming, when the tapered rod 2 is continuously inserted into the reamer body 3, the sleeve 15 is also translated by the compression spring 14, so that the screw 16 is always vertically and fixedly connected with the sleeve 15 and the reaming body 3 through threads, the conical rod 2 is in turn connected with the nut 18 through threads, therefore, when the hole reamer is used for reaming, the hole reamer is always kept in a stable state, the conical rod 2 is continuously rotated until the expansion block 32 is expanded to a preset diameter, and a pipeline is sleeved on the hole reamer 3;

Further, the cross section of the guide groove 12 is convex.

The convex design is adopted for achieving the purpose of enabling the sleeve 15 to stably slide in the blind hole 11;

further, the end cap 17 is screwed at the outlet of the blind hole 11.

The threaded connection is adopted for stable connection, and the sleeve 15 cannot be popped out of the sleeve 15 under the action of the compression spring 14;

further, the number of the expansion blocks 32 is six.

Further, the top of the conical rod 2 adopts a fillet design.

The fillet design is adopted to prevent operators from being scratched;

further, the taper angle of the tapered rod 2 is 30 °.

Claims

1. A portable self-centering reamer, comprising: the anti-theft device comprises a fixing rod (1), a conical rod (2) and a hole expanding body (3), wherein blind holes (11) are formed in two sides of the fixing rod (1), a guide groove (12) and a sliding groove (13) are formed in the upper surface and the lower surface of each blind hole (11) respectively, a compression spring (14) is fixedly connected in each blind hole (11), one end of each compression spring (14) is connected with a sleeve (15), each sleeve (15) is fixed on the guide groove (12) in a sliding mode under the action of the compression spring (14), each sleeve (15) penetrates through the corresponding sliding groove (13), a screw rod (16) is connected in each sleeve (15) in a threaded mode, and an end cover (17) is detachably connected at an outlet of each blind hole (11);

the hole expanding body (3) comprises an annular spring (31) and a plurality of expansion blocks (32), the annular spring (31) is sleeved on the expansion blocks (32) to form the hole expanding body (3), the hole expanding body (3) adopts a stepped shaft design, and the hole expanding body (3) is provided with a conical hole (33) which is coaxially arranged;

the bottom of the hole expanding body (3) is provided with a threaded hole (34) which is matched and connected with the screw rod (16), a nut (18) is fixedly arranged on the fixing rod (1), and the conical rod (2) is in threaded connection with the nut (18) and penetrates through the fixing rod (1).

2. A portable self-centering reamer as recited in claim 1, wherein: the cross section of the guide groove (12) is convex.

3. A portable self-centering reamer as recited in claim 1, wherein: the end cover (17) is in threaded connection with an outlet of the blind hole (11).

4. A portable self-centering reamer as recited in claim 1, wherein: six expansion blocks (32) are arranged.

5. A portable self-centering reamer as recited in claim 1, wherein: the top of the conical rod (2) adopts a fillet design.

6. A portable self-centering reamer as recited in claim 1, wherein: the conical angle of the conical rod (2) is 30 degrees.