Device for realizing transverse translation of longitudinal welded pipe preheating frame

Abstract

The utility model provides a device for realizing transverse translation of a longitudinal welded pipe preheating frame, which belongs to the technical field of welding auxiliary devices and comprises upright posts, guide rail longitudinal beams, supporting slide blocks, a cross beam, a lifting device, a flexible heating blanket, a supporting platform, a transmission case, a transmission module, a telescopic module and a cylindrical rack shell, the four stand columns, the two guide rail longitudinal beams and the cross beam are connected to form a stable supporting frame, the multiple lifting devices are arranged on the cross beam, the flexible heating blankets are installed below the lifting devices and used for effectively preheating welded pipes, and the telescopic module can be driven to slide in the cylindrical rack shell through the arranged transmission module; the transverse beam is pushed to move back and forth along the guide rail longitudinal beam, then the flexible heating blanket moves on the guide rail longitudinal beam, it is ensured that weld joints are preheated evenly, uneven preheating caused by deviation to the 12 o'clock direction is avoided, in addition, according to different working conditions, the device can move among multiple production lines, and the working efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding auxiliary devices, in particular to a device for realizing the lateral translation of a preheating frame of a straight seam welded pipe. Background Art

[0002] With the development of the world economy, the demand for energy resources such as oil and natural gas is also increasing year by year. In order to meet the growing demand for natural gas in my country, my country has successively built natural gas pipelines such as the West-East Gas Transmission Line 2 and Line 3 in recent years. As the main oil and gas transmission pipelines of my country's West-East Gas Transmission, high-grade pipeline steel welded pipes such as X70 and X80 have the characteristics of large diameter, high pressure and high transmission volume. However, the coarse-grained heat-affected zone of the welded pipe is considered to be the weakest area in the weld. Especially under low heat input, the coarse-grained heat-affected zone of the weld is prone to produce a certain amount of low-carbon martensite, which in turn leads to the deterioration of the overall toughness of the weld and affects the quality of the welded pipe. Therefore, it is necessary to take measures such as preheating to prevent the coarse-grained heat-affected zone of the weld from producing hardened martensite structure and avoid excessive decrease in weld toughness. At the same time, preheating can also dry the weld to avoid post-weld hydrogen embrittlement caused by water vapor. The existing weld preheating device can only be raised and lowered in the vertical direction. If the weld deviates too much from the 12 o'clock direction, the preheating effect may be poor. Utility Model Content

[0003] In order to make up for the above shortcomings, the utility model provides a device for realizing the lateral translation of the preheating frame of the straight seam welded pipe, so as to avoid the weld seam from deviating too much from the 12 o'clock direction, resulting in poor preheating effect.

[0004] The utility model is achieved in this way:

[0005] A device for realizing lateral translation of a straight seam welded pipe preheating rack comprises: columns, guide rail longitudinal beams, supporting sliders, cross beams, lifting devices, flexible heating blankets, supporting platforms, transmission boxes, transmission modules, telescopic modules and cylindrical frame shells; four columns are symmetrically arranged in pairs; the two ends of the guide rail longitudinal beams are respectively fixedly connected to the two columns; the supporting sliders are slidably connected to the guide rail longitudinal beams; the cross beams are fixedly connected to the supporting sliders; a plurality of lifting devices are arranged on the cross beams; the flexible heating blanket is arranged below the lifting device; two supporting platforms are arranged at the two ends of the guide rail longitudinal beams; two transmission boxes are respectively fixedly connected to the two supporting platforms; two transmission modules are respectively arranged on the two supporting platforms; at least two telescopic modules are respectively arranged on both sides of the cross beam; the number of the cylindrical frame shells is the same as that of the telescopic modules, one end of the cylindrical frame shell is fixedly connected to the transmission box, and the other end of the cylindrical frame shell is arranged in cooperation with the telescopic module.

[0006] In addition, one of the above technical solutions provided by the utility model to realize the lateral translation device of the straight seam welded pipe preheating rack can also have the following additional technical features:

[0007] In the above technical solution, the transmission module includes: a motor, a first bevel gear, a partition, an intermediate shaft, a second bevel gear and a reduction member; the motor is fixedly connected to the guide rail longitudinal beam, and the output end of the motor passes through the transmission box through a bearing; the first bevel gear is fixedly sleeved on the output end of the motor; the partition is centrally arranged in the middle of the transmission box; the two intermediate shafts are fixedly connected to both sides of the partition; the two second bevel gears are respectively fixedly sleeved on the two intermediate shafts, and the two second bevel gears are meshed with the first bevel gear; and the two reduction members are respectively connected to the two intermediate shafts.

[0008] In the above technical scheme, the reduction member includes: a worm, a screw transmission shaft, a worm wheel, a small transmission gear, a screw and a large transmission gear; the worm is connected to the intermediate shaft through a coupling; both ends of the screw transmission shaft are connected to the inner wall of the transmission box through bearings; the worm wheel is fixedly sleeved on the screw transmission shaft, and the worm wheel is meshed with the worm; the small transmission gear is fixedly sleeved on the screw transmission shaft; one end of the screw is connected to the inner wall of the transmission box through a bearing, and the other end of the screw extends out of the transmission box through a bearing, and the screw passes through the cylindrical frame shell; the large transmission gear is fixedly sleeved on the screw, and the large transmission gear is meshed with the small transmission gear.

[0009] In the above technical scheme, the telescopic module includes: a telescopic rod, a first through hole, a screw nut, a baffle and a second through hole; the telescopic rod is installed on the outer wall of the beam through multiple sets of bolts and nuts and a mounting plate; the first through hole is opened in the telescopic rod, and the screw passes through the first through hole; the screw nut is arranged on the side of the telescopic rod away from the beam, and the screw and the screw nut are threadedly matched; the baffle is in contact with the screw nut, and the baffle is fixedly connected to the telescopic rod by bolts; two second through holes are opened on both sides of the first through hole, and the second through holes pass through the screw nut and the baffle.

[0010] In the above technical solution, two guide posts are symmetrically arranged in the cylindrical frame shell, and the two guide posts are respectively arranged in cooperation with the two second through holes.

[0011] The above technical solution also includes: a monitoring camera, which is arranged below the guide rail longitudinal beam.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] A guide rail longitudinal beam is installed on each of the two columns, and support sliders are installed along the two guide rail longitudinal beams. The two support sliders are connected by a crossbeam to form a stable support structure, and a plurality of lifting devices are provided on the crossbeam. Flexible heating blankets are installed under these lifting devices to effectively preheat the welded pipe. Through the transmission module, the telescopic module can be driven to slide in the cylindrical frame shell, thereby pushing the crossbeam to reciprocate along the guide rail longitudinal beam, and then the flexible heating blanket moves on the guide rail longitudinal beam, ensuring uniform preheating of the weld and avoiding uneven preheating caused by offset to the 12 o'clock direction. In addition, according to different working conditions, the device can also be moved between multiple production lines, greatly improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 This is a schematic diagram of the overall structure of a device for realizing the lateral translation of a preheating rack for a straight seam welded pipe according to the utility model;

[0016] Figure 2 It is a top view of a transmission module of a device for realizing the lateral translation of a preheating rack for straight seam welded pipes according to the utility model;

[0017] Figure 3 This is a front view of a transmission module of a device for realizing the lateral translation of a preheating rack for straight seam welded pipes according to the utility model;

[0018] Figure 4 This is a schematic diagram of the installation of a telescopic rod and a crossbeam for realizing a lateral translation device of a straight seam welded pipe preheating rack according to the utility model;

[0019] Figure 5 for Figure 4 A magnified view of the structure at center;

[0020] Figure 6 This is a schematic diagram of the installation of a telescopic rod and a crossbeam for realizing a lateral translation device of a straight seam welded pipe preheating rack according to the utility model;

[0021] Figure 7 This is a schematic diagram of the installation of a telescopic rod and a cylindrical frame shell of a device for realizing the lateral translation of a straight seam welded pipe preheating rack according to the utility model;

[0022] Figure 8 for Figure 7 Enlarged view of the structure at point B in the middle.

[0023] In the figure: 100, column; 110, guide rail longitudinal beam; 120, support slider; 130, cross beam; 140, lifting device; 150, flexible heating blanket; 160, support platform; 170, transmission box; 180, monitoring camera; 200, transmission module; 210, motor; 220, first bevel gear; 230, partition; 240, intermediate shaft; 250, second bevel gear; 260, reduction member; 261, worm; 262, screw transmission shaft; 263, worm wheel; 264, small transmission gear; 265, screw; 266, large transmission gear; 300, telescopic module; 310, telescopic rod; 320, first through hole; 330, screw nut; 340, baffle; 350, second through hole; 400, cylindrical frame shell; 410, guide column. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] A device for realizing lateral translation of a preheating frame for a straight seam welded pipe, such as Figure 1-8 As shown, it includes: a column 100, a guide rail longitudinal beam 110, a support slider 120, a cross beam 130, a lifting device 140, a flexible heating blanket 150, a support platform 160, a transmission box 170, a transmission module 200, a telescopic module 300 and a cylindrical rack shell 400; four columns 100 are symmetrically arranged in pairs; the two ends of the guide rail longitudinal beam 110 are respectively fixedly connected to the two columns 100; the support slider 120 is slidably connected to the guide rail longitudinal beam 110; the cross beam 130 is fixedly connected to the support slider 120; multiple lifting devices 140 are arranged on the cross beam 130, and in order to meet the needs of welded pipes of different diameters, a lifting device is arranged on the cross beam 130 140, this principle is a mature technology and will not be elaborated here; the flexible heating blanket 150 is arranged under the lifting device 140; two support platforms 160 are arranged at both ends of the guide rail longitudinal beam 110; two transmission boxes 170 are respectively fixedly connected to the two support platforms 160; two transmission modules 200 are respectively arranged on the two support platforms 160; at least two telescopic modules 300 are respectively arranged on both sides of the crossbeam 130; the number of cylindrical frame shells 400 and telescopic modules 300 is the same, one end of the cylindrical frame shell 400 is fixedly connected to the transmission box 170, and the other end of the cylindrical frame shell 400 is matched with the telescopic module 300.

[0026] A guide rail longitudinal beam 110 is installed on each of the two columns 100, and support sliders 120 are installed along the two guide rail longitudinal beams 110. The two support sliders 120 are connected by a cross beam 130 to form a stable support structure, and a plurality of lifting devices 140 are provided on the cross beam 130. A flexible heating blanket 150 is installed under these lifting devices 140 to effectively preheat the welded pipe. The transmission module 200 is set to drive the telescopic module 300 to slide in the cylindrical frame shell 400, thereby pushing the cross beam 130 to reciprocate along the guide rail longitudinal beam 110, and then the flexible heating blanket 150 moves on the guide rail longitudinal beam 110, ensuring uniform preheating of the weld and avoiding uneven preheating of the weld due to the deviation to the 12 o'clock direction. In addition, according to different working conditions, the device can also be moved between multiple production lines, greatly improving work efficiency.

[0027] In the embodiment of the present utility model, Figure 1-8 As shown, the transmission module 200 includes: a motor 210, a first bevel gear 220, a partition 230, an intermediate shaft 240, a second bevel gear 250 and a reduction member 260; the motor 210 is fixedly connected to the guide rail longitudinal beam 110, and the output end of the motor 210 passes through the transmission box 170 through a bearing; the first bevel gear 220 is fixedly sleeved on the output end of the motor 210; the partition 230 is centrally arranged in the middle of the transmission box 170; the two intermediate shafts 240 are fixedly connected to both sides of the partition 230; the two second bevel gears 250 are respectively fixedly sleeved on the two intermediate shafts 240, and the two second bevel gears 250 are meshed with the first bevel gear 220; and the two reduction members 260 are respectively connected to the two intermediate shafts 240.

[0028] In the embodiment of the present utility model, Figure 1-8 As shown, the reduction member 260 includes: a worm 261, a screw transmission shaft 262, a worm wheel 263, a small transmission gear 264, a screw 265 and a large transmission gear 266; the worm 261 is connected to the intermediate shaft 240 through a coupling; both ends of the screw transmission shaft 262 are connected to the inner wall of the transmission box 170 through bearings; the worm wheel 263 is fixedly sleeved on the screw transmission shaft 262, and the worm wheel 263 is meshed with the worm 261; the small transmission gear 264 is fixedly sleeved on the screw transmission shaft 262; one end of the screw 265 is connected to the inner wall of the transmission box 170 through a bearing, and the other end of the screw 265 extends out of the transmission box 170 through a bearing, and the screw 265 passes through the cylindrical frame housing 400; the large transmission gear 266 is fixedly sleeved on the screw 265, and the large transmission gear 266 is meshed with the small transmission gear 264.

[0029] Specifically, the staff turns on the motor 210 to drive the first bevel gear 220 to rotate, and at the same time drives the second bevel gears 250 on both sides to rotate at the same time, so that their rotation directions are opposite, thereby driving the two intermediate shafts 240 to rotate. The two intermediate shafts 240 are connected to the worm 261 through a coupling, thereby driving the two worms 261 to rotate in opposite directions. The two worms 261 rotate in opposite directions, so that the two worm wheels 263 meshing with them can be guaranteed to rotate in the same direction, driving the screw transmission shaft 262 and the small transmission gear 264 thereon to rotate, thereby driving the large transmission gear 266 meshing with it to rotate, thereby driving the screw 265 to rotate. The transmission module 200 is provided with a set on each side of the beam 130. In actual operation, the motors 210 of the two sets of devices should rotate in opposite directions at the same speed. That is, the telescopic rod 310 on one side is extended, and the telescopic rod 310 on the other side is shortened, thereby realizing the horizontal transverse movement of the beam 130, so that the flexible heating blanket 150 under the beam 130 is also horizontally moved, avoiding uneven preheating of the weld due to the offset to the 12 o'clock direction. In addition, according to different working conditions, the device can also be moved between multiple production lines, greatly improving work efficiency; at the same time, through a series of transmission parts and two sets of speed reducers 260, double-sided drive is realized, making the drive more stable, especially the transmission of the worm wheel 263 and the worm 261 has a large reduction ratio, which can provide a greater torque output, while running smoothly and with low noise, so that the beam 130 and the flexible heating blanket 150 under it can stably move horizontally to ensure uniform preheating of the weld.

[0030] In the embodiment of the present utility model, Figure 1-8 As shown, the telescopic module 300 includes: a telescopic rod 310, a first through hole 320, a screw nut 330, a baffle 340 and a second through hole 350; the telescopic rod 310 is installed on the outer wall of the beam 130 through multiple sets of bolts and nuts and a mounting plate; the first through hole 320 is opened in the telescopic rod 310, and the screw 265 passes through the first through hole 320; the screw nut 330 is arranged in the telescopic rod 310 on the side away from the beam 130, and the screw 265 is threadedly matched with the screw nut 330; the baffle 340 is in contact with the screw nut 330, and the baffle 340 is fixedly connected to the telescopic rod 310 by bolts; two second through holes 350 are opened on both sides of the first through hole 320, and the second through holes 350 pass through the screw nut 330 and the baffle 340.

[0031] Specifically, the telescopic rod 310 is fixed to the outer wall of the beam 130 by multiple sets of bolts and nuts, and a mounting pad is provided to increase the contact area between the telescopic rod 310 and the beam 130 to prevent damage to the beam 130 due to excessive stress during operation.

[0032] In the embodiment of the present utility model, Figure 1-8As shown, two guide posts 410 are symmetrically arranged in the cylindrical frame housing 400 , and the two guide posts 410 are respectively arranged to cooperate with the two second through holes 350 .

[0033] Specifically, a first through hole 320 is provided inside the telescopic rod 310, and the screw rod 265 is allowed to pass through the telescopic rod 310 when the telescopic rod 310 moves. At the same time, the first through hole 320 on the frame side of the telescopic rod 310 is designed to have a stepped structure with different diameters, and a baffle 340 is installed at the end to axially fix the screw nut 330. When the screw rod 265 rotates, the screw nut 330 can move along the direction of the screw rod 265, thereby driving the telescopic rod 310 to reciprocate in and out of the cylindrical frame housing 400, thereby driving the cross beam 130 and the flexible reinforcement The thermal blanket 150 can move horizontally stably; at the same time, two second through holes 350 are arranged on both sides of the first through hole 320, allowing the guide column 410 to pass through, which has a guiding effect on the movement of the screw rod 265, and at the same time prevents the screw nut 330 from rotating with the screw rod 265 due to friction, thereby affecting the transmission performance of the device; it should be noted that a limit micro switch is arranged on the side of the cylindrical frame housing 400 close to the transmission box 170. During the movement, after the telescopic rod 310 touches the switch, the device stops moving, which plays a limiting role.

[0034] In the embodiment of the present utility model, Figure 1-8 As shown, it also includes: a monitoring camera 180, which is arranged below the guide rail longitudinal beam 110.

[0035] Specifically, by setting up a monitoring camera 180, the operator is helped to observe the alignment between the heating blanket and the weld so as to make timely adjustments.

[0036] Implementation process: When in use, the staff turns on the motor 210, the first bevel gear 220 rotates, and at the same time drives the second bevel gears 250 on both sides to rotate, so that their rotation directions are opposite, and the intermediate shaft 240 is connected to the worm 261 through the coupling. The two worms 261 rotate in opposite directions, and the two worms 261 rotate in opposite directions, so that the two worm wheels 263 meshing with them can be guaranteed to rotate in the same direction, thereby driving the two small transmission gears 264 to rotate in the same direction, respectively driving the large transmission gear 266 to rotate, and then driving the screw 265 to rotate; the screw 265 passes through the cylindrical frame housing 400 and extends into the first through hole 320 of the telescopic rod 310, and meshes with the screw nut 330 in the first through hole 320, so that when the screw 265 rotates, the telescopic rod 310 is The rod 310 reciprocates in and out of the cylindrical frame shell 400, thereby driving the beam 130 and the flexible heating blanket 150 to stably move horizontally. The transmission module 200, the telescopic module 300 and the cylindrical frame shell 400 are each provided with a set on both sides of the beam 130. In actual operation, the motors 210 of the two sets of devices should rotate in opposite directions at the same speed, that is, the telescopic rod 310 on one side is extended, and the telescopic rod 310 on the other side is shortened, thereby realizing the horizontal movement of the beam 130, so that the flexible heating blanket 150 under the beam 130 is also moved horizontally, avoiding uneven preheating of the weld due to the deviation to the 12 o'clock direction. In addition, according to different working conditions, the device can also be moved between multiple production lines, greatly improving work efficiency.

[0037] It should be noted that the specific models and specifications of the monitoring camera 180, the motor 210, and the lifting device 140 need to be selected and determined according to the actual specifications of the device, so they will not be described in detail.

[0038] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be modified and varied in various ways. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for realizing lateral translation of a preheating rack for a straight seam welded pipe, characterized in that: include: Pillars, four of which are symmetrically arranged in pairs; A guide rail longitudinal beam, the two ends of which are respectively fixedly connected to the two upright posts; A supporting slider, wherein the supporting slider is slidably connected to the guide rail longitudinal beam; A crossbeam, the crossbeam being fixedly connected to the supporting slider; A lifting device, wherein a plurality of the lifting devices are arranged on the crossbeam; A flexible heating blanket, wherein the flexible heating blanket is arranged below the lifting device; Support platforms, two of which are arranged at both ends of the guide rail longitudinal beam; A transmission box, wherein the two transmission boxes are respectively fixedly connected to the two support platforms; Transmission modules, two of the transmission modules are respectively arranged on the two support platforms; Telescopic modules, at least two of which are respectively arranged on both sides of the crossbeam; A cylindrical frame shell, wherein the number of the cylindrical frame shell is consistent with the number of the telescopic modules, one end of the cylindrical frame shell is fixedly connected to the transmission box, and the other end of the cylindrical frame shell is matched with the telescopic module.

2. The device for realizing lateral translation of a preheating rack for straight seam welded pipe according to claim 1 is characterized in that: The transmission module comprises: A motor, wherein the motor is fixedly connected to the guide rail longitudinal beam, and an output end of the motor passes through the transmission box via a bearing; A first bevel gear, wherein the first bevel gear is fixedly sleeved on an output end of the motor; A partition, the partition being centrally arranged in the middle of the transmission box; An intermediate shaft, wherein two intermediate shafts are fixedly connected to two sides of the partition; Second bevel gears, wherein two second bevel gears are respectively fixedly sleeved on the two intermediate shafts, and both of the two second bevel gears are meshed with the first bevel gear; A reduction member, wherein the two reduction members are respectively connected to the two intermediate shafts.

3. The device for realizing lateral translation of a preheating rack for straight seam welded pipe according to claim 2 is characterized in that: The deceleration member comprises: A worm, the worm being connected to the intermediate shaft via a coupling; A screw transmission shaft, both ends of which are connected to the inner wall of the transmission box through bearings; A worm wheel, the worm wheel is fixedly sleeved on the screw transmission shaft, and the worm wheel is meshed with the worm; A small transmission gear, the small transmission gear is fixedly sleeved on the screw transmission shaft; A screw rod, one end of which is connected to the inner wall of the transmission box through a bearing, the other end of which extends out of the transmission box through a bearing, and the screw rod passes through the cylindrical frame housing; A large transmission gear is fixedly sleeved on the screw rod and meshes with the small transmission gear.

4. The device for realizing lateral translation of a preheating rack for straight seam welded pipe according to claim 3 is characterized in that: The telescopic module comprises: A telescopic rod, the telescopic rod being mounted on the outer wall of the crossbeam through a plurality of sets of bolts, nuts and mounting pads; A first through hole, wherein the first through hole is opened in the telescopic rod, and the screw rod passes through the first through hole; A screw nut, the screw nut is arranged in the telescopic rod at a side away from the cross beam, and the screw rod is threadedly matched with the screw nut; A baffle, the baffle abuts against the screw nut, and the baffle is fixedly connected to the telescopic rod by bolts; The second through holes are arranged on both sides of the first through hole, and the second through holes penetrate the screw nut and the baffle.

5. The device for realizing lateral translation of a preheating rack for straight seam welded pipe according to claim 4 is characterized in that: Two guide posts are symmetrically arranged in the cylindrical frame shell, and the two guide posts are respectively matched with the two second through holes.

6. The device for realizing lateral translation of a preheating rack for straight seam welded pipe according to claim 1 is characterized in that: Also includes: A monitoring camera is arranged below the guide rail longitudinal beam.

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