CN109702425B

CN109702425B - Petroleum pipeline welding butt joint device

Info

Publication number: CN109702425B
Application number: CN201910151940.3A
Authority: CN
Inventors: 尹立孟; 苏子龙; 徐永庚; 王刚; 许章亮
Original assignee: Chongqing University of Science and Technology
Current assignee: Chongqing University of Science and Technology
Priority date: 2019-02-28
Filing date: 2019-02-28
Publication date: 2020-11-10
Anticipated expiration: 2039-02-28
Also published as: CN109702425A

Abstract

The invention discloses a petroleum pipeline welding aligning device which comprises an adjusting ring, a fixing ring and an axial adjusting rod, wherein the adjusting ring consists of an upper adjusting ring and a lower adjusting ring, the fixing ring consists of an upper fixing ring and a lower fixing ring, the adjusting rod comprises a first bolt and a second bolt, a plurality of limiting grooves are formed in the fixing ring, circular arc supports are distributed on the adjusting ring and the fixing ring and are respectively connected with the first bolt and the second bolt, and the first bolt and the second bolt are connected through an axial fine adjustment nut.

Description

Petroleum pipeline welding butt joint device

Technical Field

The invention relates to the field of petroleum machinery, in particular to a petroleum pipeline welding butt joint device.

Background

The oil pipeline system, i.e. the pipeline system for transporting petroleum and petroleum products, is mainly composed of oil pipeline, oil transportation station and other auxiliary related equipments, is one of the main equipments in petroleum storage and transportation industry, and is also the most main transportation equipment for crude oil and petroleum products.

The oil pipeline must use a certain linking mode to form a complete system. The connecting modes of the pipelines mainly include three types of screw threads, welding and flange connection. For lines with high pressure and strict sealing requirements, welding is basically adopted. During pipeline welding, the butt joint device is required to be adopted in advance, and the position stability and the welding precision of the butt joint position of the two pipelines are guaranteed.

The common mouth-aligning device comprises an outer mouth-aligning device and an inner mouth-aligning device, the structure of the inner mouth-aligning device is complex, the investment cost is high, and the outer mouth-aligning device is simple and convenient to use and is widely adopted. Although the outer mouth aligning device on the market is simple in structure, on one hand, the operation of a welder is blocked to a certain extent in the using process, on the other hand, the axial adjustment cannot be carried out, and the adaptive pipe diameter is single.

Chinese patent document CN106826080B discloses "a pipeline welding external aligning device", which can realize the functions of axial adjustment and automatic welding, but the product of this patent also has the problems that the fixed ring fixes the pipeline unstably in the actual use process, the adjusting ring twists the adjusting bolt for a longer time when the pipe diameter changes greatly, the working efficiency is lower, and the rotating block is stuck and shaken on the gear ring due to friction, thereby affecting the welding quality. In addition, in the patent, because the adjusting bolts do not synchronously rotate, the oil pipeline adjusted in the final adjusting ring is easy to be out of the center of the adjusting ring, so that the axial fine adjustment nut is influenced by extra moment and the service life of the axial adjustment and the connecting thread because the bolts at two sides are not right opposite during adjustment.

Disclosure of Invention

The invention provides a petroleum pipeline welding aligning device which is adjustable in axial direction, can be clamped quickly, and can detect the aligning condition and prevent a gear ring from being clamped.

In order to achieve the purpose of the invention, the invention adopts the technical scheme that:

the utility model provides a petroleum pipeline welding is to mouthpart, includes adjustable ring, solid fixed ring and axial adjusting rod, the adjustable ring comprises adjustable ring and lower adjusting ring, gu fixed ring comprises last fixed ring and lower fixed ring, the regulation pole includes first bolt and second bolt, gu be equipped with a plurality of spacing grooves on the fixed ring, it has the circular arc to prop to divide equally cloth on adjustable ring and the fixed ring to circular arc on the adjustable ring props with second bolted connection, and the circular arc on the fixed ring props with first bolted connection, and first bolt and second bolt pass through the axial fine setting nut and connect its characterized in that: a plurality of adjusting bases are distributed on the upper adjusting ring, a quick adjusting mechanism is connected to each adjusting base, and an annular T-shaped groove is formed in one side, away from the upper fixing ring, of the upper adjusting ring;

the fixing ring is provided with a plurality of stabilizer bars in the radial direction, the stabilizer bars penetrate through second bolts to be connected with first reset springs arranged on the outer side of the fixing ring, one ends of the stabilizer bars, which are positioned on the inner side of the fixing ring, are connected with locking screw rods through connecting mechanisms, the locking screw rods are connected with fixing bases through threads, gaskets are movably connected on the ends of the locking screw rods, guide rods are arranged on the gaskets, and the guide rods penetrate through the fixing bases and are movably arranged on the fixing bases;

the two sides of the fixed base are movably connected with supporting rods, and one ends of the supporting rods, far away from the fixed base, are clamped on the limiting grooves.

Furthermore, the quick adjusting mechanism comprises an adjusting sleeve and an adjusting bolt, the adjusting bolt is in threaded connection with the adjusting sleeve, and a pair of positioning heads is arranged on the outer surface of the adjusting sleeve; the adjusting base is provided with a through hole, the through hole is axially provided with a pair of guide grooves matched with the positioning head, a plurality of annular grooves communicated with the through hole and the guide grooves are radially arranged in the through hole in the adjusting base, and a pair of limit stops are arranged in the annular grooves.

Further, be connected with main slider through T type slider on the T type groove, threaded connection has the regulation pole of feeding on the main slider, feeds the one end and the second reset spring swing joint that the regulation pole is located main slider, and second reset spring fixed connection is on examining heart needle, and it is equipped with the cam to examine heart needle one of keeping away from second reset spring, still is equipped with the scale on examining heart needle.

Furthermore, the bracing piece comprises sleeve, first loop bar, second loop bar and spacing head, and the one end swing joint of first loop bar is on fixed baseplate, and first loop bar and second loop bar cover are established at telescopic both ends, second loop bar and spacing head fixed connection, and spacing head card is established at the spacing inslot.

Further, coupling mechanism includes T type connection piece and the lantern ring, T type connection piece sets up on the tip that locking screw and stabilizer bar are close to each other, and the lantern ring cover is established on T type connection piece, and the junction of the lantern ring is equipped with the hasp.

The invention has the advantages that:

1. the position of the adjusting sleeve in the adjusting base can be quickly switched by rotating the adjusting sleeve, so that the aim of quickly adjusting the relative position of the adjusting bolt and the surface of the pipeline to be welded in the adjusting ring is fulfilled. The traditional slow adjusting mode of single twisting adjusting bolt is avoided.

2. Whether the pipeline needing to be welded in the adjusting ring is in the center of the adjusting ring or not can be visually judged through the check needle.

3. The supporting rods on the two sides of the fixed base provide more stable support, and meanwhile, the height of the fixed base can be adjusted on the limiting grooves in different positions.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

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

FIG. 2 is a side view of the adjustment ring;

FIG. 3 is a schematic structural view of the retaining ring;

FIG. 4 is a schematic top view of the adjustment base;

fig. 5 is a schematic structural view of the section a-a in fig. 4.

Fig. 6 is a schematic structural view of a section B-B in fig. 5.

FIG. 7 is a schematic view of the structure of the needle.

Fig. 8 is a schematic structural view of the fixing base.

Fig. 9 is a schematic structural view of the support rod.

Fig. 10 is a schematic structural view of a stabilizer bar.

Fig. 11 is a schematic structural view of a stabilizer bar connection.

The names corresponding to the reference numerals are: 1. the feed adjusting device comprises an adjusting ring, 101, an upper adjusting ring, 102, a lower adjusting ring, 103, a T-shaped groove, 104, an adjusting base, 105, an adjusting sleeve, 106, an adjusting bolt, 107, a through hole, 108, a guide groove, 109, an annular groove, 110, a positioning head, 111, a limit stop, 112 and a feed adjusting rod; 113. the core testing device comprises a second reset spring, 114, a core testing needle, 115, a cam, 116, a T-shaped sliding block, 117, scales, 118, a main sliding block, 2, a fixing ring, 201, an upper fixing ring, 202, a lower fixing ring, 203, a fixing base, 204, a supporting rod, 205, a gasket, 206, a limiting groove, 207, a stabilizing rod, 208, a first reset spring, 209, a guide rod, 210, a sleeve, 211, a first loop bar, 212, a second loop bar, 213, a limiting head, 214, a locking screw rod, 215, a T-shaped connecting piece, 216, a loop, 217, a lock catch, 3, an axial adjusting rod, 301, a first bolt, 302, an axial fine adjustment nut, 303, a second bolt, 304 and an arc support.

Detailed Description

The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and it will be apparent to those skilled in the art that various changes may be made without departing from the spirit and scope of the invention as defined and defined in the appended claims, and all matters produced by the invention using the inventive concept are protected.

Example 1

As shown in fig. 1, fig. 2 and fig. 3, this petroleum pipeline welding is to mouthpart, including adjustable ring 1, fixed ring 2 and axial adjusting rod 3, adjustable ring 1 comprises upper adjusting ring 101 and lower adjusting ring 102, fixed ring 2 comprises upper fixing ring 201 and lower fixing ring 202, adjust rod 3 includes first bolt 301 and second bolt 303, be equipped with a plurality of spacing grooves 206 on the fixed ring 2, it has the circular arc to prop 304 and be connected with second bolt 303 and first bolt 301 respectively to divide cloth equally to adjustable ring 1 and fixed ring 2, first bolt 301 and second bolt 303 are connected through axial fine tuning nut 302, its characterized in that: a plurality of adjusting bases 104 are distributed on the upper adjusting ring 101, and a quick adjusting mechanism is connected to the adjusting bases 104, so that the relative position of the adjusting bolt and the surface of the pipeline needing to be welded in the adjusting ring can be conveniently and quickly adjusted, and the construction efficiency is improved. One side of the upper adjusting ring 101, which is far away from the upper fixing ring 201, is provided with an annular T-shaped groove 103, so that the centering mechanism is conveniently clamped and rotated.

The fixing ring 2 is provided with a plurality of stabilizer bars 207 in the radial direction, the stabilizer bars 207 pass through the second bolts 303 and are connected with first return springs 208 arranged on the outer side of the fixing ring 2, the first return springs 208 pull the stabilizer bars 207 to provide tension for the stabilizer bars 207, the fixing base 203 is prevented from loosening before being clamped by a welded pipeline, and the mechanism setting is facilitated. The stabilizer bar 207 is located the inboard one end of fixed ring 2 and is connected with locking screw 214 through coupling mechanism, and coupling mechanism includes T type connection piece 215 and lantern ring 216, and T type connection piece 215 sets up on the end that locking screw 214 and stabilizer bar 207 are close to each other, and lantern ring 216 cover is established on T type connection piece 215, and the junction of lantern ring 216 is equipped with hasp 217. The connection mechanism ensures that the locking screw 214 and the stabilizer bar 207 are connected and can rotate relatively. The locking screw 214 is connected with the fixed base 203 through threads, the end of the locking screw 214 is movably connected with the gasket 205, the gasket 205 is provided with a guide rod 209, and the guide rod 209 penetrates through the fixed base 203 and is movably arranged on the fixed base 203, so that the stability of the gasket 205 is improved, and the gasket 205 and the locking screw 214 are prevented from synchronously rotating.

The two sides of the fixed base 203 are movably connected with a support rod 204, and one end of the support rod 204 far away from the fixed base 203 is clamped on the limit groove 206. The supporting rods 204 are clamped on different limiting grooves 206 to realize quick rough adjustment of the position of the fixed base 203, so that the adjustable pipe clamp is suitable for different pipe diameters.

When in use, the upper fixing ring 201 and the lower fixing ring 202 are respectively sleeved on one of the pipelines, and the upper fixing ring 201 and the lower fixing ring 202 are fixed together by using bolts. The spacing groove 206 with the corresponding pipe diameter is selected according to the diameter of the pipeline and the supporting rod 204 is clamped in the spacing groove 206, when the spacing groove 206 is correctly selected, a small gap is formed between the gasket 205 and the pipeline, and after the clamping is successfully performed under the pulling of the first return spring 208, no extra force or mechanism is required to keep the stability of the fixing base 203, so that a single worker can sequentially erect the supporting rod 204 on the fixing ring 2. After the support rod 204 is erected, the locking screw 214 is twisted to make the gasket 205 tightly contact with the pipe.

An upper adjusting ring 101 and a lower adjusting ring 102 are mounted on the butted pipelines and locked by screws. The adjusting bolt 106 is adjusted against the butted pipe. The first bolt 301 and the second bolt 303 are connected, the axial fine adjustment nut 302 is twisted, and the axial positions of the adjusting ring 1 and the fixing ring 2 are adjusted to control the size of the welding seam.

Example 2

As shown in fig. 4 to 6, the present embodiment is different from embodiment 1 in that the quick adjustment mechanism includes an adjustment sleeve 105 and an adjustment bolt 106. The adjusting bolt 106 is in threaded connection with the adjusting sleeve 105, and a pair of positioning heads 110 is arranged on the outer surface of the adjusting sleeve 105. The adjusting base 104 is provided with a through hole 107, a pair of guide grooves 108 matched with the positioning head 110 are arranged on the through hole 107 in the axial direction, a plurality of annular grooves 109 communicated with the through hole 107 and the guide grooves 108 are arranged in the adjusting base 104 in the radial direction of the through hole 107, and a pair of limit stops 111 are arranged in the annular grooves 109.

When the adjusting bolt is used, firstly, the adjusting sleeve 105 is rotated to enable the positioning head 110 to slide to the position of the guide groove 108, and the adjusting sleeve 105 is drawn to enable the adjusting sleeve 105 to slide in the through hole 107 on the adjusting base 104, so that the purpose of quickly adjusting the radial position of the adjusting bolt 106 on the adjusting ring 1 is achieved. After the adjustment bolt 106 is adjusted to a position near the surface of the butted pipe, the adjustment sleeve 105 is rotated to slide the locating head 110 into the annular groove 109 to fix the axial position of the adjustment sleeve 105. The adjustment bolt 106 is rotated for fine adjustment, and the adjustment sleeve 105 is not rotated synchronously by the limit stopper 111.

Due to the fact that the threaded connection is low in rotating speed, the time for adjusting the threads by using the adjusting bolt 106 can be greatly shortened by adopting the structure, and efficiency is improved.

Example 3

As shown in fig. 7, a main slider 118 is connected to the T-shaped groove 103 through a T-shaped slider 116, a feed adjusting rod 112 is connected to the main slider 118 through a screw, and the length of the core needle 114 can be adjusted by adjusting the feed adjusting rod 112 to adapt to different pipe diameters. One end of the feed adjusting rod 112, which is positioned in the main sliding block 118, is movably connected with a second return spring 113, the second return spring 113 is fixedly connected to the check needle 114, a cam 115 is arranged at one end of the check needle 114, which is far away from the second return spring 113, and the cam 115 reduces the friction force at the end of the check needle 114. The check needle 114 is also provided with a scale 117, which is convenient for judging position change.

Example 4

As shown in fig. 9, the present embodiment is different from embodiment 1 in that the support rod 204 is composed of a sleeve 210, a first sleeve 211, a second sleeve 212, and a stopper 213. One end of the first sleeve rod 211 is movably connected to the fixed base 203, the first sleeve rod 211 and the second sleeve rod 212 are sleeved at two ends of the sleeve 210, the second sleeve rod 212 is fixedly connected with the limiting head 213, and the limiting head 213 is clamped in the limiting groove 206.

The advantage of such a structure is that the range of pipe diameters that the upper fixing ring 201 can be applied to can be further increased by replacing the sleeve 210 with different lengths.

Claims

1. The utility model provides a petroleum pipeline welding is to mouthpart, includes adjustable ring (1), fixed ring (2) and axial adjusting pole (3), adjustable ring (1) comprises last adjustable ring (101) and lower adjusting ring (102), fixed ring (2) comprises last fixed ring (201) and lower fixed ring (202), adjust pole (3) including first bolt (301) and second bolt (303), are equipped with a plurality of spacing grooves (206) on fixed ring (2), it has the circular arc to prop (304) to divide equally cloth on adjustable ring (1) and fixed ring (2) to circular arc on adjustable ring (1) props (304) and is connected with second bolt (303), and the circular arc on the fixed ring (2) props (304) and is connected with first bolt (301), and first bolt (301) and second bolt (303) are connected through axial fine setting nut (302), its characterized in that: a plurality of adjusting bases (104) are distributed on the upper adjusting ring (101), a quick adjusting mechanism is connected to each adjusting base (104), and an annular T-shaped groove (103) is formed in one side, away from the upper fixing ring (201), of the upper adjusting ring (101);

the fixing ring is characterized in that a plurality of stabilizer bars (207) are arranged in the radial direction of the fixing ring (2), the stabilizer bars (207) penetrate through second bolts (303) to be connected with first reset springs (208) arranged on the outer side of the fixing ring (2), one ends of the stabilizer bars (207) positioned on the inner side of the fixing ring (2) are connected with locking screws (214) through connecting mechanisms, the locking screws (214) are connected with a fixing base (203) through threads, gaskets (205) are movably connected to the ends of the locking screws (214), guide rods (209) are arranged on the gaskets (205), and the guide rods (209) penetrate through the fixing base (203) and are movably arranged on the fixing base (203);

the two sides of the fixed base (203) are movably connected with supporting rods (204), and one end, far away from the fixed base (203), of each supporting rod (204) is clamped on the corresponding limiting groove (206).

2. The petroleum pipeline welding butt joint device of claim 1, wherein: the quick adjusting mechanism comprises an adjusting sleeve (105) and an adjusting bolt (106), the adjusting bolt (106) is in threaded connection with the adjusting sleeve (105), and a pair of positioning heads (110) is arranged on the outer surface of the adjusting sleeve (105); the adjusting base (104) is provided with a through hole (107), the through hole (107) is axially provided with a pair of guide grooves (108) matched with the positioning head (110), the through hole (107) in the adjusting base (104) is radially provided with a plurality of annular grooves (109) communicated with the through hole (107) and the guide grooves (108), and the annular grooves (109) are internally provided with a pair of limit stops (111).

3. The petroleum pipeline welding butt joint device of claim 1, wherein: the novel core checking machine is characterized in that a main sliding block (118) is connected to the T-shaped groove (103) through a T-shaped sliding block (116), a feeding adjusting rod (112) is connected to the main sliding block (118) through threads, one end, located in the main sliding block (118), of the feeding adjusting rod (112) is movably connected with a second reset spring (113), the second reset spring (113) is fixedly connected to a core checking needle (114), a cam (115) is arranged at one end, far away from the second reset spring (113), of the core checking needle (114), and scales (117) are further arranged on the core checking needle (114).

4. The petroleum pipeline welding butt joint device of claim 1, wherein: the support rod (204) is composed of a sleeve (210), a first loop bar (211), a second loop bar (212) and a limiting head (213), one end of the first loop bar (211) is movably connected to the fixed base (203), the first loop bar (211) and the second loop bar (212) are sleeved at two ends of the sleeve (210), the second loop bar (212) is fixedly connected with the limiting head (213), and the limiting head (213) is clamped in the limiting groove (206).

5. The petroleum pipeline welding butt joint device of claim 1, wherein: the connecting mechanism comprises a T-shaped connecting piece (215) and a sleeve ring (216), the T-shaped connecting piece (215) is arranged at the end, close to each other, of the locking screw rod (214) and the stabilizing rod (207), the sleeve ring (216) is sleeved on the T-shaped connecting piece (215), and a lock catch (217) is arranged at the connecting position of the sleeve ring (216).