CN109702425B - Petroleum pipeline welding butt joint device - Google Patents

Abstract

The invention discloses a welding counterpart for petroleum pipelines, which comprises an adjusting ring, a fixing ring and an axial adjusting rod. Including a first bolt and a second bolt, the fixing ring is provided with a number of limit grooves, the adjusting ring and the fixing ring are distributed with arc braces and are respectively connected with the first bolt and the second bolt. The first bolt and the second bolt pass through the shaft Connect to the trim nut.

Description

An oil pipeline welding counterpart

technical field

The invention relates to the field of petroleum machinery, in particular to a welding counterpart for petroleum pipelines.

Background technique

The oil pipeline system, that is, the pipeline system used to transport oil and petroleum products, is mainly composed of oil pipelines, oil stations and other auxiliary related equipment. Compared with railway and road oil transportation, which are both land transportation methods, pipeline oil transportation has the characteristics of large transportation volume, good airtightness, low cost and high safety factor.

Oil pipelines must use certain links to form a complete system. There are three main types of pipeline connections: threaded, welded and flanged. For circuits with high pressure and strict sealing requirements, welding is basically used. When welding pipes, it is necessary to use a pair of mouthpieces in advance to ensure the stability of the position of the butt joints of the two pipes and the accuracy of the welding.

Common counterparts are divided into external counterparts and internal counterparts. The internal counterparts have a complex structure and high investment costs, while the external counterparts are widely used because of their simple interaction and ease of use. At present, although the structure of the external mouthpiece on the market is simple, on the one hand, it blocks the operation of the welder in the process of use, and on the other hand, it cannot be adjusted axially, and the diameter of the pipe it adapts is relatively simple.

Chinese patent document CN106826080B discloses "An Outer Fitting for Pipe Welding", which can realize the functions of axial adjustment and automatic welding. However, in the actual use process of this patented product, the fixing ring to fix the pipe is unstable, and the adjusting ring is in the diameter of the pipe. When the change is large, it takes a long time to twist the adjusting bolt, and the work efficiency is low. The rotating block on the gear ring will be stuck and shake due to friction, which will affect the welding quality and other problems. In addition, in this patent, since the adjusting bolts do not rotate synchronously, it is easy to occur that the oil pipeline adjusted to the final adjusting ring is not in the center of the adjusting ring, so that the axial fine-tuning nut is adjusted because the bolts on both sides are not aligned. The additional torque affects the axial adjustment and the life of the connecting thread.

SUMMARY OF THE INVENTION

The invention provides an oil pipeline welding counterpart which is axially adjustable, fast clamping, can detect the centering condition, and the gear ring is not stuck.

In order to achieve the above-mentioned purpose of the invention, the technical scheme adopted in the present invention is:

Provided is an oil pipeline welding counterpart, comprising an adjusting ring, a fixing ring and an axial adjusting rod, the adjusting ring is composed of an upper adjusting ring and a lower adjusting ring, the fixing ring is composed of an upper fixing ring and a lower fixing ring, and the The adjusting rod includes a first bolt and a second bolt, the fixing ring is provided with a number of limit grooves, the adjusting ring and the fixing ring are distributed with arc braces, and the arc braces on the adjusting ring are connected with the second bolts , the arc brace on the fixing ring is connected with the first bolt, the first bolt and the second bolt are connected by an axial fine-tuning nut, and it is characterized in that: the upper adjustment ring is distributed with a number of adjustment bases, and the adjustment base A quick adjustment mechanism is connected to the upper part, and the side of the upper adjustment ring away from the upper fixed ring is provided with an annular T-shaped groove;

The fixing ring is provided with a number of stabilizing rods on the radial direction, the stabilizing rods are connected with the first return spring arranged on the outside of the fixing ring through the second bolt, and the end of the stabilizing rod which is located on the inner side of the fixing ring is connected with the locking screw through a connecting mechanism, The locking screw is connected with a fixed base by a thread, and a gasket is movably connected on the end of the locking screw. on the base;

Two sides of the fixed base are movably connected with support rods, and one end of the support rod away from the fixed base is clamped on the limiting groove.

Further, the quick adjustment mechanism includes an adjustment sleeve and an adjustment bolt, the adjustment bolt is threadedly connected with the adjustment sleeve, and a pair of positioning heads are arranged on the outer surface of the adjustment sleeve; the adjustment base is provided with a through hole, the through hole A pair of guide grooves matched with the positioning head are arranged in the axial direction, a plurality of annular grooves communicating with the through holes and the guide grooves are arranged upwards in the through hole of the adjusting base, and a pair of limit blocks are arranged in the annular groove.

Further, a main slider is connected to the T-shaped groove through a T-shaped slider, a feed adjustment rod is threadedly connected to the main slider, and one end of the feed adjustment rod located in the main slider is movably connected with the second return spring. The second return spring is fixedly connected to the heart inspection needle, the end of the heart inspection needle away from the second return spring is provided with a cam, and the heart inspection needle is also provided with a scale.

Further, the support rod is composed of a sleeve, a first set of rods, a second set of rods and a limit head, one end of the first set of rods is movably connected to the fixed base, and the first set of rods and the second set of rods are sleeved. Set at both ends of the sleeve, the second set of rods is fixedly connected with the limit head, and the limit head is clamped in the limit groove.

Further, the connection mechanism includes a T-shaped connection piece and a collar, the T-shaped connection piece is arranged on the end of the locking screw and the stabilizer bar that are adjacent to each other, the collar is sleeved on the T-shaped connection piece, and the There is a lock at the connection.

The advantages of the present invention are:

1. The position of the adjusting sleeve in the adjusting base can be quickly switched by rotating the adjusting sleeve, so as to achieve the purpose of quickly adjusting the relative position of the adjusting bolt and the pipe surface to be welded in the adjusting ring. The slow adjustment method of the traditional single twist adjustment bolt is avoided.

2. Through the heart inspection needle, it can be intuitively judged whether the pipe to be welded in the adjustment ring is in the center of the adjustment ring.

3. The support rods on both sides of the fixed base provide more stable support, and at the same time, the height of the fixed base can be adjusted on the limit grooves at different positions.

Description of drawings

The accompanying drawings described herein are used to provide further understanding of the embodiments of the present invention, and constitute a part of the present application, and do not constitute limitations to the embodiments of the present invention. In the attached image:

Fig. 1 is the side structure schematic diagram of the present invention;

Fig. 2 is the side structure schematic diagram of adjustment ring;

Fig. 3 is the structural representation of the fixed ring;

Fig. 4 is the top structure schematic diagram of the adjustment base;

FIG. 5 is a schematic structural diagram of the section A-A in FIG. 4 .

FIG. 6 is a schematic structural diagram of the B-B section in FIG. 5 .

FIG. 7 is a schematic diagram of the structure of the heart inspection needle.

FIG. 8 is a schematic view of the structure of the fixed base.

FIG. 9 is a schematic structural diagram of a support rod.

FIG. 10 is a schematic diagram of the structure of the stabilizer bar.

FIG. 11 is a schematic diagram of the structure of the connection of the stabilizer bar.

The names corresponding to the reference numerals are: 1. Adjusting ring, 101, Upper adjusting ring, 102, Lower adjusting ring, 103, T-slot, 104, Adjusting base, 105, Adjusting sleeve, 106, Adjusting bolt, 107 , through hole, 108, guide groove, 109, annular groove, 110, positioning head, 111, limit stop, 112, feed adjustment rod; 113, second return spring, 114, heart inspection needle, 115, cam, 116, T-type slider, 117, scale, 118, main slider, 2, fixing ring, 201, upper fixing ring, 202, lower fixing ring, 203, fixing base, 204, support rod, 205, gasket, 206, limit groove, 207, stabilizer bar, 208, first return spring, 209, guide rod, 210, sleeve, 211, first set of rods, 212, second set of rods, 213, limit head, 214, Locking screw, 215, T-shaped connecting piece, 216, Collar, 217, Lock, 3, Axial adjusting rod, 301, First bolt, 302, Axial fine-tuning nut, 303, Second bolt, 304, Circle Arc brace.

Detailed ways

The specific embodiments of the present invention are described below to facilitate those skilled in the art to understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Such changes are obvious within the spirit and scope of the present invention as defined and determined by the appended claims, and all inventions and creations utilizing the inventive concept are within the scope of protection.

Example 1

As shown in Figure 1, Figure 2 and Figure 3, the oil pipeline welding counterpart includes an adjusting ring 1, a fixing ring 2 and an axial adjusting rod 3. The adjusting ring 1 consists of an upper adjusting ring 101 and a lower adjusting ring 102. The ring 2 is composed of an upper fixing ring 201 and a lower fixing ring 202. The adjusting rod 3 includes a first bolt 301 and a second bolt 303. The fixing ring 2 is provided with a number of limiting grooves 206. The adjusting ring 1 and the fixing ring 2 are distributed with The arc support 304 is connected with the second bolt 303 and the first bolt 301 respectively. The first bolt 301 and the second bolt 303 are connected by the axial fine-tuning nut 302. 104, the adjusting base 104 is connected with a quick adjusting mechanism, which facilitates and quickly adjusts the relative position of the adjusting bolt and the pipe surface to be welded in the adjusting ring, and improves the construction efficiency. The side of the upper adjusting ring 101 away from the upper fixing ring 201 is provided with an annular T-shaped groove 103, which is convenient for clamping the heart checking mechanism and allowing the heart checking mechanism to rotate.

Several stabilizer bars 207 are arranged on the radial direction of the fixing ring 2. The stabilizer bars 207 pass through the second bolts 303 and are connected to the first return spring 208 arranged outside the fixing ring 2. The first return spring 208 pulls the stabilizer bars 207 to give 207 provides a pulling force to prevent the fixing base 203 from loosening before being clamped with the welded pipe, which facilitates the setting of the mechanism. The end of the stabilizer bar 207 located inside the fixing ring 2 is connected with the locking screw 214 through a connecting mechanism, the connecting mechanism includes a T-shaped connecting piece 215 and a collar 216, and the T-shaped connecting piece 215 is arranged on the locking screw 214 and the stabilizer bar 207 are adjacent to each other On the end of the ferrule, the collar 216 is sleeved on the T-shaped connecting piece 215, and the connection part of the collar 216 is provided with a lock 217. The connection mechanism ensures that the locking screw 214 is connected to the stabilizer bar 207 and can also rotate relative to each other. The locking screw 214 is threadedly connected with a fixed base 203 , and the end of the locking screw 214 is movably connected with a gasket 205 , a guide rod 209 is provided on the gasket 205 , and the guide rod 209 passes through the fixed base 203 The movable arrangement is arranged on the fixed base 203 to improve the stability of the washer 205 while preventing the washer 205 from rotating synchronously with the locking screw 214 .

Two sides of the fixed base 203 are movably connected with support rods 204 , and one end of the support rod 204 away from the fixed base 203 is clamped on the limiting groove 206 . By clamping the support rods 204 on different limiting grooves 206, the fast and rough adjustment of the position of the fixing base 203 is realized, thereby adapting to different pipe diameters.

When in use, firstly sleeve the upper fixing ring 201 and the lower fixing ring 202 on one of the pipes and use bolts to fix the upper fixing ring 201 and the lower fixing ring 202 together. Select the limit groove 206 corresponding to the pipe diameter according to the diameter of the pipe and clamp the support rod 204 in it. If the limit groove 206 is selected correctly, there is a small gap between the gasket 205 and the pipe, and the first return spring 208 After the pulling and clamping are successful, no additional force or mechanism is required to maintain the stability of the fixing base 203, so a single employee can set up the support rods 204 on the fixing ring 2 in turn. After the support rod 204 is erected, twist the locking screw 214 to make the gasket 205 closely contact with the pipeline.

Install the upper adjusting ring 101 and the lower adjusting ring 102 on the butted pipes and lock them with screws. Adjust the adjusting bolt 106 against the butted pipe. Connect the first bolt 301 and the second bolt 303, twist the axial fine-tuning nut 302, and adjust the axial positions of the adjusting ring 1 and the fixing ring 2 to control the size of the welding seam.

Example 2

As shown in FIGS. 4 to 6 , the difference between this embodiment and Embodiment 1 is that the quick adjustment mechanism includes an adjustment sleeve 105 and an adjustment bolt 106 . The adjusting bolt 106 is threadedly connected with the adjusting sleeve 105 , and a pair of positioning heads 110 are provided on the outer surface of the adjusting sleeve 105 . The adjustment base 104 is provided with a through hole 107, the through hole 107 has a pair of guide grooves 108 in the axial direction, which are matched with the positioning head 110, and the adjustment base 104 has a plurality of through holes 107 and guide grooves in the radial direction of the through hole 107. The annular groove 109 communicated with 108 is provided with a pair of limit blocks 111 in the annular groove 109 .

When in use, firstly rotate the adjusting sleeve 105 to make the positioning head 110 slide to the position of the guide groove 108 , twitch the adjusting sleeve 105 to make the adjusting sleeve 105 slide in the through hole 107 on the adjusting base 104 to quickly adjust the adjusting bolt 106 The purpose of the radial position on the adjusting ring 1. After the adjusting bolt 106 is adjusted to a position close to the surface of the butted pipe, the adjusting sleeve 105 is rotated to slide the positioning head 110 into the annular groove 109 to fix the axial position of the adjusting sleeve 105 . Rotate the adjusting bolt 106 for fine adjustment, and the adjusting sleeve 105 will not rotate synchronously under the action of the limit stop 111 .

Since the rotation speed of the threaded connection is relatively slow, the use of such a structure can greatly shorten the time for adjusting the thread using the adjusting bolt 106 and improve the efficiency.

Example 3

As shown in FIG. 7 , a main slider 118 is connected to the T-shaped groove 103 through the T-shaped slider 116, and a feed adjustment rod 112 is threadedly connected to the main slider 118. Adjusting the feed adjustment rod 112 can adjust the heart inspection The length of the needle 114 is suitable for different tube diameters. One end of the feed adjustment rod 112 located in the main slider 118 is movably connected with the second return spring 113 , the second return spring 113 is fixedly connected to the heart inspection needle 114 , and one end of the heart inspection needle 114 away from the second return spring 113 is provided with There is a cam 115, and the cam 115 reduces the frictional force of the end of the heart needle 114. There is also a scale 117 on the heart-checking needle 114, which is convenient for judging the position change.

Example 4

As shown in FIG. 9 , the difference between this embodiment and Embodiment 1 is that the support rod 204 is composed of a sleeve 210 , a first set of rods 211 , a second set of rods 212 and a limiting head 213 . One end of the first set of rods 211 is movably connected to the fixed base 203, the first set of rods 211 and the second set of rods 212 are set on both ends of the sleeve 210, and the second set of rods 212 and the limiting head 213 are fixedly connected, The limiting head 213 is clamped in the limiting groove 206 .

The advantage of such a structure is that the applicable pipe diameter range of the upper fixing ring 201 can be further improved by replacing the sleeves 210 with different lengths.

Claims (5)

1. An oil pipeline welding counterpart, comprising an adjusting ring (1), a fixing ring (2) and an axial adjusting rod (3), the adjusting ring (1) is composed of an upper adjusting ring (101) and a lower adjusting ring ( 102), the fixing ring (2) is composed of an upper fixing ring (201) and a lower fixing ring (202), and the adjusting rod (3) includes a first bolt (301) and a second bolt (303), which are fixed The ring (2) is provided with several limiting grooves (206), the adjusting ring (1) and the fixing ring (2) are both distributed with circular arc supports (304), and the circular arc supports on the adjusting ring (1) (304) is connected with the second bolt (303), the arc support (304) on the fixing ring (2) is connected with the first bolt (301), and the first bolt (301) and the second bolt (303) pass through the axial The fine adjustment nut (302) is connected, and it is characterized in that: the upper adjustment ring (101) is distributed with a plurality of adjustment bases (104), the adjustment base (104) is connected with a quick adjustment mechanism, and the upper adjustment ring (101) ) is provided with an annular T-slot (103) on the side away from the upper fixing ring (201); A plurality of stabilizing rods (207) are arranged on the radial direction of the fixing ring (2), and the stabilizing rods (207) are connected with a first return spring (208) arranged on the outer side of the fixing ring (2) through a second bolt (303) , the end of the stabilizer bar (207) located inside the fixing ring (2) is connected with the locking screw (214) through a connecting mechanism, and the locking screw (214) is connected with a fixing base (203) through a thread, and the locking screw (214) A spacer (205) is movably connected to the end of the ), and a guide rod (209) is provided on the spacer (205), and the guide rod (209) passes through the fixed base (203) and is movably arranged on the on the fixed base (203); Two sides of the fixed base (203) are movably connected with support rods (204), and one end of the support rod (204) away from the fixed base (203) is clamped on the limiting groove (206). 2. The oil pipeline welding counterpart according to claim 1, wherein the quick adjustment mechanism comprises an adjustment sleeve (105) and an adjustment bolt (106), and the adjustment bolt (106) and the adjustment sleeve (105) A pair of positioning heads (110) are provided on the outer surface of the adjusting sleeve (105); the adjusting base (104) is provided with a through hole (107), and the through hole (107) is axially provided with a pair of positioning heads (110). The guide groove (108) matched with the positioning head (110), the adjustment base (104) is provided with a plurality of annular grooves (109) in the radial direction of the through hole (107) communicating with the through hole (107) and the guide groove (108), A pair of limit blocks (111) are arranged in the annular groove (109). 3. The oil pipeline welding counterpart according to claim 1, characterized in that: a main slider (118) is connected to the T-shaped groove (103) through a T-shaped slider (116), and the main slider (118) ) is threadedly connected with a feed adjustment rod (112), one end of the feed adjustment rod (112) located in the main slider (118) is movably connected with the second return spring (113), and the second return spring (113) is fixedly connected On the heart inspection needle (114), a cam (115) is provided on one end of the heart inspection needle (114) away from the second return spring (113), and a scale (117) is also arranged on the heart inspection needle (114). 4. The oil pipeline welding counterpart according to claim 1, wherein the support rod (204) is composed of a sleeve (210), a first set of rods (211), a second set of rods (212) and a limiting rod. The head (213) is composed of one end of the first set of rods (211) movably connected to the fixed base (203), and the first set of rods (211) and the second set of rods (212) are set on the sleeve (210) Both ends of the second set of rods (212) are fixedly connected with the limit head (213), and the limit head (213) is clamped in the limit groove (206). 5. The oil pipeline welding counterpart according to claim 1, wherein the connecting mechanism comprises a T-shaped connecting piece (215) and a collar (216), and the T-shaped connecting piece (215) is provided on the lock On the ends of the tightening screw (214) and the stabilizer bar (207) that are adjacent to each other, a collar (216) is sleeved on the T-shaped connecting piece (215), and a lock (217) is provided at the connection of the collar (216). .

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