Chemical plant pipeline construction site cutting and welding auxiliary device

Abstract

The utility model discloses a chemical plant pipeline construction site cuts, welds auxiliary device, including steel structure track support structure, the both sides of steel structure track support structure are equipped with the first turnover mechanism and tail turnover mechanism of turnover chemical pipeline respectively, the first turnover mechanism and tail turnover mechanism are respectively rolling and sliding on steel structure track support structure, the first turnover mechanism and tail turnover mechanism all include mobile support, and the mobile support is assembled and is connected with the power to hold over -turning roller of holding in chemical pipeline bottom position, and power to hold over -turning roller rotates through drive structure drive, the mobile support is assembled and is connected with the support roller of holding over -turning roller cooperation. Through above -mentioned structure can adjust the distance of first turnover mechanism and tail turnover mechanism of two ends according to the length of pipeline blank, realizes the maximum limit to hold over -turning, support point close to the first end of pipeline to the tail end, to increase the stability of over -turning in over -turning pipeline process and the security of operation.

Description

Technical Field

[0001] This utility model belongs to the field of chemical plant pipeline construction technology, and in particular relates to an auxiliary device for cutting and welding on chemical plant pipeline construction sites. Background Technology

[0002] Chemical pipelines are essential facilities in chemical plants. Specifically, chemical production processes require the use of numerous reaction vessels, tanks, and kettles. Material transport to these reaction vessels is conducted through pipeline systems. Therefore, pipeline construction is crucial during the infrastructure development of a chemical plant.

[0003] Specifically, the pipeline systems used in chemical plants are characterized by high complexity, significant construction difficulty, and a high degree of flexibility in construction. Therefore, on-site fabrication of pipe blanks often requires temporary processing to match the pipe connections according to construction needs. Specifically, on-site pipe processing mainly includes pipe cutting and welding, such as fabricating pipes of composite installation lengths as needed, and cutting, drilling holes, and welding flanges and interface pipes on existing pipes.

[0004] Both welding and cutting processes require the pipes to be flipped. Therefore, in actual work, large-diameter pipes (which are often used in chemical production) are often flipped using a flipping device to achieve simultaneous flipping and cutting, and to make it easier to adjust the working part of the pipe to a position that is convenient for the operator.

[0005] The above methods do improve the efficiency of on-site pipeline processing. However, in actual work, the length of the pipeline blanks used varies due to the different lengths required for installation. This means that during construction, especially in the processing of long pipelines, the support and overturning device cannot flexibly adjust its position to support the beginning and end sections of the pipeline. As a result, the point of application of the overturning force is too far from the end, which makes the pipeline prone to instability during processing. This can lead to one end sinking and the other end tilting. Once the heavy pipeline is unstable, it is very easy to cause safety hazards, such as large-diameter pipelines rolling and slipping due to the detachment of the support and overturning device. Utility Model Content

[0006] Based on the above background, the purpose of this utility model is to provide an auxiliary device for cutting and welding at a chemical plant pipeline construction site.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A cutting and welding auxiliary device for chemical plant pipeline construction site includes a steel structure track support structure, wherein a first turning mechanism and a tail turning mechanism for turning over chemical pipelines are respectively provided on both sides of the steel structure track support structure.

[0009] The first and last tilting mechanisms roll and slide on the steel track support structure, respectively.

[0010] Both the first and last flipping mechanisms include a movable support, on which a power-driven flipping roller is mounted and connected, supporting the bottom of the chemical pipeline. The power-driven flipping roller is driven to rotate by a drive structure.

[0011] The movable support is equipped with a support roller that cooperates with the limiting turning roller.

[0012] Preferably, the steel structure track support structure includes frame beam supports spaced apart on both sides, and an inner track structure is fixedly connected inside the frame beam supports;

[0013] The mobile support is equipped with several rolling wheels that roll on the inner track structure.

[0014] Preferably, the inner track structure includes an upper track section and a lower track section, and track grooves are formed on the side walls of the upper track section and the lower track section facing each other;

[0015] The rolling wheel is limited to rolling within the track groove.

[0016] Preferably, a plurality of connecting beams are welded between the frame beam support and the upper rail;

[0017] Several connecting beams are welded between the frame beam support and the lower rail.

[0018] Preferably, the power-driven turning roller and the limiting turning roller are arranged in a V-shape;

[0019] The power-driven turning roller is located below the limiting turning roller.

[0020] Preferably, the movable support is equipped with bearing supports that rotatably connect the power support roller and the limiting roller.

[0021] The drive structure includes a drive motor, the power output end of which is fixedly mounted on the power support roller.

[0022] Preferably, a sliding telescopic structure is assembled and connected between the first flipping mechanism and the tail flipping mechanism;

[0023] The sliding telescopic structure includes a sleeve bracket fixedly installed on the tail tilting mechanism, a telescopic rod bracket slidably connected to the sleeve bracket, and the telescopic rod bracket fixedly installed on the head tilting mechanism.

[0024] Preferably, a pin is inserted into the sleeve bracket, and the pin is fixed to the telescopic rod bracket;

[0025] The telescopic rod support has several pin holes arranged along the length of the telescopic rod support, and the pin passes through the pin holes.

[0026] Preferably, a baffle is hinged at the tail of the steel structure track support structure, and the baffle covers the work area during the welding and cutting of chemical pipelines;

[0027] The cover has an operating port.

[0028] This utility model has the following beneficial effects:

[0029] 1. Different installations require different pipe lengths, so the pipe blanks used in on-site construction are of different lengths. Therefore, in order to adjust the distance between the first and last flipping mechanisms at both ends according to the length of the pipe blank, the flipping and support points are brought as close as possible to the beginning and end of the pipe, so as to increase the stability of the flipping process and the safety of the operation.

[0030] 2. During operation, after the crane lowers the large-diameter pipe, the V-shaped arrangement of powered and limiting rollers supports the pipe. Specifically, the bottom of the pipe is supported by the top of the powered rollers, while the two sides of the pipe abut against the limiting rollers on either side. During operation, the limiting rollers keep the pipe in a restrained state. When the powered rollers rotate, friction drives the pipe to flip. The limiting rollers prevent the pipe from dislodging.

[0031] 3. A sliding telescopic structure is assembled and connected between the first tilting mechanism and the tail tilting mechanism; the sliding telescopic structure adjusts the length synchronously during the sliding adjustment of the distance between the first tilting mechanism and the tail tilting mechanism, and locks in position after adjustment. This method increases the stability of pipeline operation by adjusting and locking. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present utility model;

[0034] Figure 2 This is a schematic diagram of the first flipping mechanism in an embodiment of the present utility model;

[0035] Figure 3 This is a schematic diagram of the inner track structure in an embodiment of the present invention;

[0036] Figure 4 This is an embodiment of the present utility model. Figure 1 Top view in the middle;

[0037] Figure 5 This is a schematic diagram of the structure in the form of a cover in an embodiment of this utility model.

[0038] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0041] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0042] Example 1

[0043] like Figure 1-5 As shown, a cutting and welding auxiliary device for a chemical plant pipeline construction site includes a steel structure track support structure. The front and rear sides of the steel structure track support structure are respectively provided with a first turning mechanism 2 and a tail turning mechanism 3 for turning over the chemical pipeline.

[0044] The first flipping mechanism 2 and the tail flipping mechanism 3 roll and slide on the steel structure track support structure respectively; specifically, during the operation, the first flipping mechanism 2 and the tail flipping mechanism 3 support both ends of the pipeline and flip the pipeline to facilitate on-site processing such as cutting and welding.

[0045] Since different installations require different pipe lengths, the lengths of pipe blanks used in on-site construction are different. Therefore, in order to adjust the distance between the first flipping mechanism 2 and the last flipping mechanism 3 at both ends according to the length of the pipe blank, and to maximize the proximity of the flipping and support points to the beginning and end of the pipe, the stability of the flipping process and the safety of the operation are increased.

[0046] The aforementioned first-flipping mechanism 2 and tail-flipping mechanism 3 roll and slide on the steel structure track support structure. That is, according to the length of the billet pipe, the distance between the first-flipping mechanism 2 and tail-flipping mechanism 3 is pre-adjusted by rolling and sliding. Then, in the existing manner, such as using a crane, the pipe is lifted onto the steel structure track support structure and both ends of the pipe are supported on the first-flipping mechanism 2 and tail-flipping mechanism 3.

[0047] Example 2

[0048] like Figure 1-5 As shown, in this embodiment, based on the structure of embodiment 1, both the first flipping mechanism 2 and the tail flipping mechanism 3 include a movable bracket 25. According to the existing roller installation method, a pair of rolling wheels 251 with front and rear intervals are rotatably connected to the left and right side walls of the movable bracket 25. Correspondingly, the steel structure track support structure includes a frame beam support 1 with intervals on both sides. An inner track structure 11 is fixedly connected inside the frame beam support 1. The inner track structure 11 includes an upper rail part 111 and a lower rail part 112 (a number of connecting beams are welded between the frame beam support 1 and the upper rail part 111; a number of connecting beams are welded between the frame beam support 1 and the lower rail part 112. In this way, the inner track structure 11 is welded and fixed on the frame beam support 1).

[0049] Meanwhile, track grooves are provided on the side walls of the upper track 111 and the lower track facing each other; the rolling wheel 251 is limited to rolling in the track groove.

[0050] The above structure enables the movable support 25 (first flipping mechanism 2 and tail flipping mechanism 3) to move on the steel track support structure in a relatively flexible manner.

[0051] The aforementioned movable support 25 is equipped with a power-driven tilting roller 22 that supports the bottom of the chemical pipeline. The power-driven tilting roller 22 is driven to rotate by a drive structure. The movable support 25 is also equipped with a support roller 21 that cooperates with the limiting tilting roller.

[0052] Specifically, the aforementioned powered tilting roller 22 and the limiting tilting roller are arranged in a V-shape; the powered tilting roller 22 is located below the limiting tilting roller. According to the existing rotating connection method, the movable bracket 25 is respectively equipped with a bearing bracket 23 that rotatably connects the powered tilting roller 22 and the limiting tilting roller (specifically, the two ends of the powered tilting roller 22 and the limiting tilting roller are respectively fixedly connected to a rotating shaft, and the rotating shaft is rotatably connected to the bearing on the bearing bracket 23).

[0053] Meanwhile, the drive structure includes a drive motor 24, the power output end of which is fixedly mounted on the power support roller 22. The output shaft of the drive motor 24 is connected to the rotating shaft on the power support roller 22 via a connecting flange, which enables the motor to be detached (similar to existing methods, a motor bracket is fixedly connected to the bottom of the drive motor, and the motor bracket is mounted on the movable bracket 25 by means of bolts). During operation, a specific model of motor is selected according to the pipe diameter and total weight; for example, a more powerful motor is selected for large-diameter pipes and heavier total weights.

[0054] During operation, after the crane lowers the large-diameter pipe, the V-shaped power-supporting tilting rollers 22 and limiting tilting rollers support the pipe. Specifically, the bottom of the pipe is supported by the top of the power-supporting tilting rollers 22, while the two sides of the pipe abut against the limiting tilting rollers on both sides. This ensures that the two sides of the pipe remain in a blocked state during operation, thanks to the restraint of the limiting tilting rollers. When the power-supporting tilting rollers 22 rotate, they drive the pipe to tilt through friction. The two sides of the pipe are prevented from dislodging due to the restraint of the limiting tilting rollers.

[0055] During operation, the aforementioned structure is used to flip the pipeline. This flipping of the processed pipeline improves processing efficiency, such as facilitating cutting during pipe cutting and adjusting the posture of the pipe when welding flanges. Therefore, this method significantly improves the flexibility of on-site pipeline operations and fundamentally reduces the workload of on-site pipeline processing.

[0056] A sliding telescopic structure is assembled and connected between the first flipping mechanism 2 and the tail flipping mechanism 3; the sliding telescopic structure adjusts its length synchronously during the sliding adjustment of the distance between the first flipping mechanism 2 and the tail flipping mechanism 3.

[0057] Specifically, the sliding telescopic structure includes a sleeve bracket 52 fixedly installed on the tail flipping mechanism 3 (the sleeve bracket 52 is fixed on the rear side wall of the movable bracket 25 of the tail flipping mechanism 3), and a telescopic rod bracket 51 (the telescopic rod bracket 51 is fixed on the front side wall of the movable bracket 25 of the head flipping mechanism 2) is slidably connected to the sleeve bracket 52. A cavity for slidably connecting the telescopic rod bracket 51 is provided on the sleeve bracket 52.

[0058] A pin is inserted into the sleeve bracket 52 and is fixed to the telescopic rod bracket 51. The telescopic rod bracket 51 has several pin holes arranged along the length of the telescopic rod bracket 51, and the pin passes through the pin holes.

[0059] During operation, when adjusting the spacing, the pin 521 is pulled out, and the spacing adjustment of the first flipping mechanism 2 and the tail flipping mechanism 3 is completed. The pin 521 is then locked in place. After being locked in place, the first flipping mechanism 2 and the tail flipping mechanism 3 on both sides are locked in place by the sliding telescopic structure, thereby achieving the positioning of the first flipping mechanism 2 and the tail flipping mechanism 3.

[0060] Example 3

[0061] like Figure 1-5 As shown, this embodiment, based on the structure of embodiment 2, has a baffle 4 (a rectangular cover) hinged to the tail (front) of the steel track support structure. During the welding and cutting of chemical pipelines, the baffle 4 covers the work area. The hinge method is as follows: a pair of pins are welded and fixed to the lower left side wall of the baffle 4, and correspondingly, hinged lugs are welded to the top (frame steel beam) of the steel track support structure. During the cutting process, in order to reduce the range of splashing sparks, the baffle 4 is flipped down, and the operator can hold the cutting equipment and pass through the operating port on the baffle 4 to carry out the work. This method achieves protection for on-site operations in chemical industrial parks by reducing splashing sparks through the cover.

[0062] Meanwhile, during operation, the cover 4 can also be flipped to the open position (provided that operation safety is ensured) for more convenient operation.

[0063] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. An auxiliary device for cutting and welding at a chemical plant pipeline construction site, characterized in that, It includes a steel structure track support structure, on both sides of which are respectively provided a first turning mechanism and a tail turning mechanism for turning over chemical pipelines; The first and last tilting mechanisms roll and slide on the steel track support structure, respectively. Both the first and last flipping mechanisms include a movable support, on which a power-driven flipping roller is mounted and connected, supporting the bottom of the chemical pipeline. The power-driven flipping roller is driven to rotate by a drive structure. The movable support is equipped with a support roller that cooperates with the limiting turning roller.

2. The auxiliary device for cutting and welding at the construction site of a chemical plant pipeline according to claim 1, characterized in that, The steel structure track support structure includes frame beam supports spaced apart on both sides, and an inner track structure is fixedly connected inside the frame beam supports; The mobile support is equipped with several rolling wheels that roll on the inner track structure.

3. The auxiliary device for cutting and welding at the construction site of a chemical plant pipeline according to claim 2, characterized in that, The inner track structure includes an upper track section and a lower track section, and track grooves are formed on the side walls of the upper track section and the lower track section facing each other. The rolling wheel is limited to rolling within the track groove.

4. The auxiliary device for cutting and welding at the construction site of chemical plant pipelines according to claim 3, characterized in that, Several connecting beams are welded between the frame beam support and the upper rail. Several connecting beams are welded between the frame beam support and the lower rail.

5. The auxiliary device for cutting and welding at the construction site of a chemical plant pipeline according to claim 1, characterized in that, The power support roller and the limiting roller are arranged in a V-shape; The power-driven turning roller is located below the limiting turning roller.

6. The auxiliary device for cutting and welding at the construction site of chemical plant pipelines according to claim 5, characterized in that, The movable support is respectively equipped with bearing supports that rotatably connect the power support roller and the limiting roller. The drive structure includes a drive motor, the power output end of which is fixedly mounted on the power support roller.

7. The auxiliary device for cutting and welding at the construction site of chemical plant pipelines according to claim 1, characterized in that, A sliding telescopic structure is assembled and connected between the first flipping mechanism and the tail flipping mechanism; The sliding telescopic structure includes a sleeve bracket fixedly installed on the tail tilting mechanism, a telescopic rod bracket slidably connected to the sleeve bracket, and the telescopic rod bracket fixedly installed on the head tilting mechanism.

8. The auxiliary device for cutting and welding at the construction site of a chemical plant pipeline according to claim 7, characterized in that, A pin is inserted into the sleeve bracket, and the pin is fixed to the telescopic rod bracket. The telescopic rod support has several pin holes arranged along the length of the telescopic rod support, and the pin passes through the pin holes.

9. The auxiliary device for cutting and welding at the construction site of a chemical plant pipeline according to claim 1, characterized in that, The tail end of the steel track support structure is hinged with a baffle, which covers the work area during the welding and cutting of chemical pipelines. The cover has an operating port.

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