CN214559670U

CN214559670U - Pipeline post-welding residual height grinding device

Info

Publication number: CN214559670U
Application number: CN202120923335.6U
Authority: CN
Inventors: 翁磊; 王锟艺; 钱鹏; 陈力; 徐育烺
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2021-11-02
Anticipated expiration: 2031-04-29

Abstract

The utility model relates to a pipeline post-welding surplus height polishing device, which comprises two arc-shaped guide rails which are symmetrically arranged outside the extra height of a welding seam, and polishing devices are connected in the two arc-shaped guide rails in a sliding way; the two arc-shaped guide rails are respectively provided with a first rail and a second rail; the grinding device comprises an angle grinder fixing plate, a supporting frame and pulley blocks in a sliding connection second rail, two ends of the supporting frame are respectively in rotating connection with wheel shafts of the pulley blocks on two sides, and the angle grinder fixing plate is fixedly arranged below a cross rod of the supporting frame. The utility model discloses the angle mill is the same with the slip orbit of assembly pulley in the second track, presses close to the surplus eminence of welding seam through the angle of adjustment angle mill emery wheel, fixes the angle mill on the angle mill fixed plate, through manual removal braced frame or angle mill, polishes to the welding seam surplus height, avoids the too much contact angle mill of staff to appear dangerous phenomenon, and the radian of arc guide rail is unanimous with the radian of pipeline for it is comparatively even to polish to the surplus height of welding seam.

Description

Pipeline post-welding residual height grinding device

Technical Field

The utility model relates to a pipeline excess height technical field that polishes specifically indicates a pipeline weld back excess height grinding device.

Background

After pipe welding, weld reinforcement, which is a portion protruding from the surface of the base material or a deposited metal at a portion above the fillet welding end (i.e., toe) connecting line, occurs. Ideal, no-allowance, and no-concavity welds are difficult to obtain. The extra height is large, the surface of a welding seam is convex, the transition is not smooth, stress concentration is easy to cause, and the bearing dynamic load of a welding structure is not favorable, so that the size of the extra height is limited.

The existing method for repairing the weld reinforcement by a welder in a pipeline welding factory generally polishes the weld reinforcement through a manual rubbing or an angle grinder, the manual rubbing efficiency is extremely low, and the method is not suitable for batch polishing of the weld reinforcement of the pipeline; the angle grinder completely depends on the hands of workers, and the workers have great potential risks in the grinding process.

SUMMERY OF THE UTILITY MODEL

For solving not enough among the prior art, the utility model provides a pipeline after-welding surplus height grinding device, the angle grinder on the grinding device is passed through the assembly pulley and is polished to the welding seam surplus height along arc guide rail's direction, not only reduces the workman and appears potential dangerous phenomenon at the in-process of polishing, also makes the welding seam surplus height polish evenly.

The utility model discloses a realize above-mentioned purpose, realize through following technical scheme: a polishing device for the weld reinforcement of a pipeline comprises two arc-shaped guide rails symmetrically arranged on the outer sides of the weld reinforcement, polishing devices are connected in the two arc-shaped guide rails in a sliding mode, and the radian of each arc-shaped guide rail is consistent with that of the pipeline;

the two arc-shaped guide rails are respectively provided with a first rail, and two side surfaces of the first rail are respectively provided with a second rail;

the grinding device comprises an angle grinder fixing plate, a supporting frame and pulley blocks in sliding connection with the second rails, the two ends of the supporting frame are respectively in rotating connection with the wheel shafts of the pulley blocks on the two sides, the angle grinder fixing plate is fixedly arranged below the cross rod of the supporting frame, and an angle grinder is arranged on the angle grinder fixing plate.

Two arc guide rail symmetries set up the both sides that have the surplus height of welding seam at the pipeline, the pulley block has been cup jointed in two arc guide rail's the second track, the pulley block is connected with braced frame, the slip orbit of pulley block in the second track is the arc shape, braced frame's horizontal pole below has set firmly the angle mill fixed plate, be provided with the angle mill on the angle mill fixed plate, the same thing, the angle mill is the same with the slip orbit of pulley block in the second track, press close to the surplus eminence of welding seam through the angle of adjustment angle mill emery wheel, fix the angle mill on the angle mill fixed plate, through manually move braced frame or angle mill, polish to the surplus height of welding seam, avoid too much contact angle mill of staff to appear dangerous phenomenon, the radian of arc guide rail is unanimous with the radian of pipeline, it is comparatively even to make to polish to the surplus height of welding seam.

Preferably, the pulley block comprises two pulleys and a wheel shaft for rotatably connecting the two pulleys, two pulleys are arranged in the second rail of the same arc-shaped guide rail, and the two pulleys are positioned on two sides of the first rail.

Preferably, the supporting frame further comprises connecting blocks which are respectively rotatably connected with the wheel shafts of the pulley blocks on the two sides, through holes are formed in the lower portions of the connecting blocks, the wheel shafts are fixedly arranged in the through holes, and the upper ends of the two connecting blocks are connected through a cross rod.

Preferably, an arc-shaped fastening ring for fixing the angle grinder is arranged on the angle grinder fixing plate, and two ends of the arc-shaped fastening ring are in threaded connection with the angle grinder fixing plate through bolts.

The arc-shaped fastening ring is clamped on the shell of the angle grinder and is fixed on the angle grinder fixing plate through bolts.

Preferably, the lower ends of the arc-shaped guide rails are provided with bases, threaded holes are respectively formed in two ends of each of the two arc-shaped guide rails, a screw matched with the threaded holes is arranged in each threaded hole, each screw is fixedly connected with a nut, and the lower end of each screw is rotatably connected with the bases through bearings.

The lower extreme of screw rod rotates with the bearing to be connected, and the upper portion of screw rod and the screw hole threaded connection of arc guide rail when needing the height of two arc guide rails of adjustment, rotate the nut through the spanner, and the screw rod rotates and drives the arc guide rail and shift up.

Preferably, the base is provided with a bearing groove, an outer ring of the bearing is fixedly connected with the inner wall of the bearing groove, and an inner ring of the bearing is fixedly connected with the lower end of the screw rod.

Preferably, the nut is located between the lower end surface of the arcuate track and the upper end surface of the base.

Contrast prior art, the beneficial effects of the utility model reside in that: the angle grinder and the pulley block have the same sliding track in the second track, the angle grinder is fixed on a fixing plate of the angle grinder by adjusting the angle of a grinding wheel of the angle grinder to be close to the extra height of the welding seam, the support frame or the angle grinder is manually moved to grind the extra height of the welding seam, so that the dangerous phenomenon caused by excessive hands contacting the angle grinder is avoided, the radian of the arc-shaped guide rail is consistent with that of the pipeline, and the extra height of the welding seam is ground more uniformly; the lower extreme of screw rod rotates with the bearing to be connected, and the upper portion of screw rod and the screw hole threaded connection of arc guide rail when needing the height of two arc guide rails of adjustment, rotate the nut through the spanner, and the screw rod rotates and drives the arc guide rail and shift up.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1 of the present invention;

fig. 3 is an enlarged schematic structural diagram of the position B in fig. 1 of the present invention.

Reference numerals shown in the drawings: 1. an arc-shaped guide rail; 101. a first track; 102. a second track; 2. fixing plate of angle grinder; 3. a support frame; 301. a cross bar; 302. connecting blocks; 303. a connecting rod; 4. a pulley block; 401. a pulley; 402. a wheel axle; 5. an angle grinder; 6. an arc-shaped fastening ring; 7. a bolt; 8. a base; 801. a bearing groove; 9. a screw; 10. a nut; 11. a bearing; 12. and (5) welding seam surplus height.

Detailed Description

The utility model is further illustrated by combining with the specific embodiment, as shown in fig. 1-3, a pipeline post-weld residual height polishing device comprises two arc-shaped guide rails 1 symmetrically arranged outside a weld residual height 12, polishing devices are slidably connected in the two arc-shaped guide rails 1, the radian of the arc-shaped guide rails 1 is consistent with that of a pipeline, first tracks 101 are respectively arranged on the two arc-shaped guide rails 1, and second tracks 102 are respectively arranged on two side surfaces of the first tracks 101;

the grinding device comprises an angle grinder fixing plate 2, a supporting frame 3 and a pulley block 4 in sliding connection with the inside of the second rail 102, wherein the pulley block 4 comprises two pulleys 401 and a wheel shaft 402 used for rotatably connecting the two pulleys 401, the two pulleys 401 are arranged in the second rail 102 of the same arc-shaped guide rail 1, and the two pulleys 401 are positioned on two sides of the first rail 101.

The supporting frame 3 comprises a cross rod 301 and connecting blocks 302 which are respectively rotatably connected with wheel shafts 402 of the pulley blocks 4 on the two sides, through holes are formed in the lower portions of the connecting blocks 302, the wheel shafts 402 are fixedly arranged in the through holes, and the upper ends of the two connecting blocks 302 are connected through the cross rod 301.

The both ends of braced frame 3 rotate with the shaft 402 of both sides assembly pulley 4 respectively and are connected, and braced frame 3's horizontal pole 301 below has angle mill fixed plate 2 through connecting rod 303 rigid coupling, is provided with the arc tighrening ring 6 that is used for fixed angle mill 5 on the angle mill fixed plate 2, and the arc tighrening ring 6 card is on angle mill 5's shell, and the both ends of arc tighrening ring 6 pass through bolt 7 threaded connection with angle mill fixed plate 2.

The two arc-shaped guide rails 1 are symmetrically arranged at two sides of the pipeline with the weld reinforcement 12, the pulley blocks 4 are connected in the second tracks 102 of the two arc-shaped guide rails 1 in a sliding manner, the pulley blocks 4 are connected with the supporting frame 3, the sliding tracks of the pulley blocks 4 in the second tracks 102 are arc-shaped, the angle grinder fixing plate 2 is fixedly arranged below the cross rod 301 of the supporting frame 3, the angle grinder 5 is arranged on the angle grinder fixing plate 2, and similarly, the sliding tracks of the angle grinder 5 and the pulley blocks 4 in the second tracks 102 are the same, the angle grinder 5 is fixed on the angle grinder fixing plate 2 by adjusting the angle of the grinding wheel of the angle grinder 5 to be close to the extra height 12 of the welding line, and the supporting frame 3 or the angle grinder 5 is moved manually, the welding seam surplus height 12 is polished, the phenomenon that danger occurs when too many hands contact the angle grinder 5 is avoided, and the radian of the arc-shaped guide rail 1 is consistent with that of the pipeline, so that polishing of the welding seam surplus height 12 is uniform.

The lower extreme of arc guide rail 1 is provided with base 8, threaded hole has been seted up respectively at the both ends of two arc guide rails 1, screw rod 9 with threaded hole looks adaptation is provided with in every threaded hole, the rigid coupling has nut 10 respectively on every screw rod 9, nut 10 is located between orbital lower terminal surface of arc and the up end of base 8, bearing groove 801 has been seted up on the base 8, bearing 11's outer lane and bearing groove 801's inner wall rigid coupling, bearing 11's inner circle and screw rod 9's lower extreme rigid coupling, bearing 11 and base 8 rotation connection are passed through respectively to every screw rod 9's lower extreme.

The lower extreme of screw rod 9 rotates with bearing 11 to be connected, and the upper portion of screw rod 9 and the screw hole threaded connection of arc guide rail 1, when needing the height of two arc guide rails 1 of adjustment, rotate nut 10 through the spanner, and screw rod 9 rotates and drives arc guide rail 1 and move up.

It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope defined in the present application.

Claims

1. The utility model provides a pipeline remains high grinding device after welding which characterized in that: the device comprises two arc-shaped guide rails (1) which are symmetrically arranged on the outer sides of weld reinforcement (12), wherein polishing devices are connected in the two arc-shaped guide rails (1) in a sliding manner, and the radian of each arc-shaped guide rail (1) is consistent with that of a pipeline;

the two arc-shaped guide rails (1) are respectively provided with a first rail (101), and two side surfaces of the first rail (101) are respectively provided with a second rail (102);

grinding device includes assembly pulley (4) in angle mill fixed plate (2), braced frame (3) and the sliding connection second track (102), the both ends of braced frame (3) rotate with shaft (402) of assembly pulley (4) of both sides respectively and are connected, angle mill fixed plate (2) have set firmly below horizontal pole (301) of braced frame (3), be provided with angle mill (5) on angle mill fixed plate (2).

2. The device for grinding the weld reinforcement of the pipeline according to claim 1, wherein: the pulley block (4) comprises two pulleys (401) and a wheel shaft (402) used for rotatably connecting the two pulleys (401), the two pulleys (401) are arranged in the same second rail (102) of the arc-shaped guide rail (1), and the two pulleys (401) are located on two sides of the first rail (101).

3. The device for grinding the weld reinforcement of the pipeline according to claim 1, wherein: the supporting frame (3) further comprises connecting blocks (302) which are respectively rotatably connected with wheel shafts (402) of the pulley blocks (4) on the two sides, through holes are formed in the lower portions of the connecting blocks (302), the wheel shafts (402) are fixedly arranged in the through holes, and the upper ends of the two connecting blocks (302) are connected through a cross rod (301).

4. The device for grinding the weld reinforcement of the pipeline according to claim 1, wherein: an arc-shaped fastening ring (6) used for fixing the angle grinder (5) is arranged on the angle grinder fixing plate (2), and two ends of the arc-shaped fastening ring (6) are in threaded connection with the angle grinder fixing plate (2) through bolts (7).

5. The device for grinding the weld reinforcement of the pipeline according to claim 1, wherein: the lower extreme of arc guide rail (1) is provided with base (8), two threaded hole is seted up respectively at the both ends of arc guide rail (1), every threaded hole is provided with screw rod (9) with threaded hole looks adaptation, every screw rod (9) are gone up respectively the rigid coupling has nut (10), every the lower extreme of screw rod (9) is connected with base (8) rotation through bearing (11) respectively.

6. The device for grinding the weld reinforcement of the pipeline according to claim 5, wherein: the base (8) is provided with a bearing groove (801), the outer ring of the bearing (11) is fixedly connected with the inner wall of the bearing groove (801), and the inner ring of the bearing (11) is fixedly connected with the lower end of the screw (9).

7. The device for grinding the weld reinforcement of the pipeline according to claim 6, wherein: the nut (10) is positioned between the lower end face of the arc-shaped track and the upper end face of the base (8).