Large-displacement low-resistance guide pipe frame

Abstract

The utility model discloses a large-displacement low-resistance guide pipe frame, and belongs to the technical field of pressure pipelines. The defects that in the prior art, a traditional low-friction pipe frame is prone to causing pipeline stress increase and displacement, and then pipeline operation potential safety hazards are caused are overcome. The main structure of the device comprises a base, the two sides of the base are each provided with at least one fan-shaped wheel assembly, each fan-shaped wheel assembly comprises a bearing seat, a rotating shaft, fan-shaped plates and an arc plate, the bearing seats are installed on the base, the rotating shafts are installed on the two bearing seats, the fan-shaped plates are installed on the rotating shafts, and the arc plates are arranged between the two fan-shaped plates. And a saddle for placing a pipeline is arranged above the arc plate. The utility model is mainly used for guiding and supporting of petrochemical engineering and electric power long-distance transmission heat distribution pipelines.

Description

Technical Field

[0001] The utility model belongs to the technical field of pressure pipelines, and in particular relates to a large-displacement and low-resistance guide pipe rack. Background Art

[0002] Due to the expansion and long distance of the long-distance thermal pipelines currently used in petrochemicals and power boilers, the cumulative displacement of the rear section of the pipeline gradually increases. The magnitude of the displacement is related to the temperature and length of the pipeline. The currently commonly used low-friction pipe racks cannot achieve the theoretical low-friction conditions due to factory manufacturing deviations and on-site construction conditions, resulting in increased pipeline stress and displacement, causing safety hazards in pipeline operation.

[0003] For example, a Chinese utility model patent with authorization announcement number CN 217925760 U discloses an oil pipe guide rack, which facilitates automatic oil pipe transportation, automatic pipe loading and automatic pipe delivery during oil pipe cleaning, thereby improving the efficiency of oil pipe transportation and loading during oil pipe cleaning. However, its disadvantage is that due to the long pipeline, the cumulative displacement of the rear section of the pipeline is easily increased, thereby causing safety hazards to the pipeline. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a large-displacement and low-resistance guide pipe rack.

[0005] In order to achieve the above purpose, the utility model is implemented by adopting the following technical solutions:

[0006] A large displacement and low resistance guide pipe rack comprises a base, at least one fan-shaped wheel assembly is arranged on each side of the base, the fan-shaped wheel assembly comprises a bearing seat, a rotating shaft, a fan-shaped plate and an arc plate, the bearing seat is mounted on the base, the rotating shaft is mounted on two bearing seats, the fan-shaped plate is mounted on the rotating shaft, the arc plate is arranged between the two fan-shaped plates, and a saddle for placing a pipeline is arranged above the arc plate.

[0007] Preferably, a positioning hole is provided on the fan-shaped plate, and the fan-shaped plate is connected to one end of a positioning rod through the positioning hole and a positioning bolt, and the other end of the positioning rod is fixed on the base.

[0008] Preferably, the fan-shaped wheel assembly further comprises a support plate, the support plate is connected to the rotating shaft, and the upper end of the support plate is connected to the bottom of the arc plate.

[0009] Preferably, the saddle is arranged between two fan-shaped plates.

[0010] Preferably, the radial height of the fan-shaped plate is higher than the radial height of the arc plate.

[0011] Preferably, the bearing seat is mounted and fixed on the base by a bolt assembly.

[0012] Preferably, the bearing seat is a self-lubricating bearing seat.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The guide pipe rack is equipped with fan-shaped wheel assemblies on both sides of the base, and uses fan-shaped plates and arc plate structures to effectively reduce the friction resistance of the pipeline during movement, achieve smooth guidance of large displacement, and improve the efficiency and safety of pipeline movement;

[0015] 2. The fan-shaped plate is connected to the positioning rod through the positioning hole and positioning bolt, so that the position of the fan-shaped plate can be fine-tuned, which enhances the adaptability and flexibility of the entire device, can better adapt to pipes of different diameters and weights, and ensures the guiding accuracy;

[0016] 3. The saddle is set between two fan-shaped plates, which can distribute the weight of the pipeline more evenly, reduce local pressure, further reduce the friction between the pipeline and the guide pipe rack, and improve the smoothness of the guiding process;

[0017] 4. The radial height of the fan-shaped plate is higher than that of the arc plate, which can avoid unnecessary contact between the pipeline and the guide pipe rack during movement, reduce the risk of wear and tear, and extend the service life;

[0018] 5. The bearing seat is fixed to the base by bolt assembly. The detachable design is convenient for maintenance and replacement, which reduces maintenance costs and also facilitates the installation and adjustment of the device.

[0019] 6. The self-lubricating bearing seat has its own lubrication function, which reduces the need for additional lubricants and reduces the maintenance frequency. It can also reduce friction and improve the working efficiency and reliability of the guide tube rack;

[0020] In summary, the utility model solves the problem of pipeline distortion and deformation caused by large friction resistance of large displacement sliding pipe rack. The use of rotating shaft and self-lubricating bearing structure effectively reduces the displacement resistance. It has the advantages of simple structure, large displacement and low resistance, reliable performance and easy installation. It can be widely used in thermal displacement guide support of petrochemical and long-distance power thermal pipelines. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is the front view of the utility model;

[0022] Figure 2 It is a left view of the utility model.

[0023] In the figure: 1. base; 2. bearing seat; 3. rotating shaft; 4. fan-shaped plate; 5. positioning rod; 6. arc plate; 7. saddle; 8. bolt assembly; 9. positioning bolt; 10. support plate; 11. pipeline. DETAILED DESCRIPTION

[0024] The present invention will be further described below through specific embodiments in conjunction with the accompanying drawings.

[0025] Embodiment 1:

[0026] like Figure 1-2 As shown, a large displacement and low resistance guide pipe rack includes a base 1, at least one fan-shaped wheel assembly is arranged on each side of the base 1, the fan-shaped wheel assembly includes a bearing seat 2, a rotating shaft 3, a fan-shaped plate 4 and an arc plate 6, the bearing seat 2 is installed on the base 1, the rotating shaft 3 is installed on two bearing seats 2, the fan-shaped plate 4 is installed on the rotating shaft 3, the arc plate 6 is arranged between the two fan-shaped plates 4, and a saddle 7 for placing a pipe 11 is arranged above the arc plate 6.

[0027] Furthermore, a plurality of positioning holes are provided on the fan-shaped plate 4, and the fan-shaped plate 4 is connected to one end of the positioning rod 5 through the positioning holes and the positioning bolts 9, and the other end of the positioning rod 5 is fixed on the base 1, and is connected to the positioning holes on the fan-shaped plate 4 through the positioning bolts 9 according to the displacement direction and displacement amount of the pipeline 11, and the geometric dimensions of the fan-shaped plate 4 can be determined according to the displacement amount of the pipeline 11.

[0028] Furthermore, the fan-shaped wheel assembly also includes a support plate 10, which is connected to the rotating shaft 3, and the upper end of the support plate 10 is connected to the bottom of the arc plate 6, so that the arc plate 6 and the saddle 7 are supported by the support plate 10.

[0029] Furthermore, the saddle 7 is disposed between the two fan-shaped plates 4, which can more evenly distribute the weight of the pipeline 11, reduce local pressure, further reduce the friction between the pipeline 11 and the guide pipe rack, and improve the smoothness of the guiding process.

[0030] Furthermore, the radial height of the fan-shaped plate 4 is higher than the radial height of the arc plate 6, which guides the pipeline 11 and avoids unnecessary contact between the pipeline 11 and the guide pipe rack during movement, thereby reducing the risk of wear and extending the service life.

[0031] Furthermore, the bearing seat 2 is fixed to the base 1 by means of a bolt assembly 8. The detachable design facilitates maintenance and replacement, reduces maintenance costs, and also facilitates installation and adjustment of the device.

[0032] Furthermore, the bearing seat 2 is a self-lubricating bearing seat. Since the self-lubricating bearing seat has a self-lubricating function, the need for additional lubricants is reduced, the maintenance frequency is reduced, and friction is also reduced, thereby improving the working efficiency and reliability of the guide tube rack.

[0033] When the utility model is installed, the base 1 is installed on the foundation seat or steel beam through the fixing hole or welding, and the saddle 7 is welded and fixed to the pipeline 11 and placed above the arc plate 6. Before the pipeline is operated, the positioning bolts 9 are removed and the pipe rack enters the working state. When the pipeline 11 is displaced by thermal expansion, the saddle 7 moves accordingly, thereby driving the fan-shaped wheel assembly to rotate and support. Since the fan-shaped plate 4 is higher than the arc plate 6, the saddle 7 is located between the fan-shaped plates 4 on both sides above the arc plate 6, which can achieve a guiding effect.

[0034] The radial height of the fan-shaped plate 4 is higher than the radial height of the arc plate 6. When the pipeline 11 is working and moving axially, the fan-shaped plate 4 plays a guiding role. The fan-shaped arc plate 6 and the saddle 7 rotate accordingly under the support of the self-lubricating bearing seat. The torque of the pipeline 11 always acts vertically on the bearing seat 2. When the pipeline 11 moves, the bottom plate of the saddle 7 and the arc plate 6 are in close contact with the fan-shaped wheel assembly and swing through the rotating shaft 3. The bottom plate of the saddle 7 and the arc plate 6 do not produce relative movement. Due to the self-lubricating characteristics of the self-lubricating bearing seat, the effect of low-friction rotation can be effectively achieved. Modifying the rotation angle of the fan-shaped plate 4 can achieve different displacement lengths.

Claims

1. A large displacement and low resistance guide pipe rack, comprising a base (1), characterized in that: At least one fan-shaped wheel assembly is disposed on each side of the base (1), the fan-shaped wheel assembly comprising a bearing seat (2), a rotating shaft (3), a fan-shaped plate (4) and an arc plate (6), the bearing seat (2) being mounted on the base (1), the rotating shaft (3) being mounted on two bearing seats (2), the fan-shaped plate (4) being mounted on the rotating shaft (3), the arc plate (6) being disposed between the two fan-shaped plates (4), and a saddle (7) for placing a pipe (11) being disposed above the arc plate (6).

2. The large displacement and low resistance guide pipe rack according to claim 1 is characterized in that: The fan-shaped plate (4) is provided with a positioning hole, and the fan-shaped plate (4) is connected to one end of a positioning rod (5) through the positioning hole and a positioning bolt (9), and the other end of the positioning rod (5) is fixed on the base (1).

3. The large displacement and low resistance guide pipe rack according to claim 2 is characterized in that: The fan-shaped wheel assembly also includes a support plate (10), the support plate (10) is connected to the rotating shaft (3), and the upper end of the support plate (10) is connected to the bottom of the arc plate (6).

4. The large displacement and low resistance guide pipe rack according to claim 3 is characterized in that: The saddle (7) is arranged between two fan-shaped plates (4).

5. The large displacement and low resistance guide pipe rack according to any one of claims 1 to 4, characterized in that: The radial height of the fan-shaped plate (4) is higher than the radial height of the arc plate (6).

6. The large displacement and low resistance guide pipe rack according to any one of claims 1 to 4, characterized in that: The bearing seat (2) is mounted and fixed on the base (1) via a bolt assembly (8).

7. The large displacement and low resistance guide pipe rack according to any one of claims 1 to 4, characterized in that: The bearing seat (2) is a self-lubricating bearing seat.

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