Chuck type foaming shaping device for hard polyurethane thermal insulation pipe

Abstract

The utility model belongs to the technical field of thermal insulation pipe processing, and particularly relates to a hard polyurethane thermal insulation pipe chuck type foaming shaping device which comprises a wheel seat assembly, a rotating seat, a base, a walking device, a screw pitch adjusting device and a power device. The walking device is connected to the base, one end of the screw pitch adjusting device is connected with the rotating base, and the other end of the screw pitch adjusting device is connected with the base. The wheel seat assembly comprises a tire, a wheel seat and a wheel axle, the wheel seat is connected to the rotating seat, the wheel axle is rotationally connected to the wheel seat, and the tire is connected to the wheel axle; the walking device comprises wheels and a rotating shaft, the rotating shaft is connected to the base, and the wheels are connected to the rotating shaft; compared with the prior art, the polyurethane layer winding device can provide a force for pressing a steel pipe when a polyurethane layer is wound, and the fitting degree of the polyurethane layer and the steel pipe is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal insulation processing pipes, in particular to a chuck-type foaming and shaping device for rigid polyurethane thermal insulation pipes. Background Art

[0002] For a chuck-type rigid polyurethane heat-insulating pipe, both ends of a steel pipe are clamped by chucks. During spraying, the steel pipe rotates and advances at the same time. The polyurethane layer formed by foaming is not under pressure throughout the process and its surface is uneven. As a result, when the PE layer is wound around the rigid polyurethane heat-insulating pipe, the PE layer cannot be fully adhered to the polyurethane layer. To ensure the full adhesion of the PE layer and the polyurethane layer, the utility model provides a novel chuck-type foaming and shaping device for rigid polyurethane heat-insulating pipes. The device consists of a wheel seat assembly, a rotating seat, a base, a traveling device, a pitch adjustment device, and a traveling oil cylinder. Content of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the utility model develops a chuck-type foaming and shaping device for rigid polyurethane heat-insulating pipes, which provides a force pressing the steel pipe during the winding of the polyurethane layer, and improves the adhesion between the polyurethane layer and the steel pipe.

[0004] The technical solution for the utility model to solve the technical problem is: a chuck-type foaming and shaping device for rigid polyurethane heat-insulating pipes, including a wheel seat assembly, a rotating seat, a base, a traveling device, a pitch adjustment device, and a power device. The wheel seat assembly is connected to the rotating seat through a pin shaft. The rotating seat is rotatably connected to the base. The traveling device is connected to the base. One end of the pitch adjustment device is connected to the rotating seat, and the other end is connected to the base. The wheel seat assembly includes a tire, a wheel seat, and a wheel shaft. The wheel seat is connected to the rotating seat. The wheel shaft is rotatably connected to the wheel seat. The tire is connected to the wheel shaft. The traveling device includes a wheel and a rotating shaft. The rotating shaft is connected to the base. The wheel is connected to the rotating shaft.

[0005] Preferably, the wheel seat assembly and the rotating seat are arranged in an array on the base.

[0006] Preferably, the pitch adjustment device includes a ratchet adjustment mechanism and a connecting rod. One end of the ratchet adjustment mechanism is connected to the rotating seat, and the other end is connected to the base. The arrayed wheel seat assemblies are connected by the connecting rod.

[0007] Preferably, the tire is an inflated tire.

[0008] Preferably, the power device is an oil cylinder. The oil cylinder is connected to the ground through a fixed seat. An ear seat is arranged on the base. The ear seat is connected to the output end of the oil cylinder.

[0009] Preferably, a material plate with a low coefficient of friction is arranged between the rotating seat and the base.

[0010] Preferably, the low friction coefficient material plate is a polytetrafluoroethylene plate.

[0011] Preferably, a counterweight is provided on the side of the base close to the power device.

[0012] The effects provided in the utility model content are only the effects of the embodiments, not all the effects of the utility model. The above technical solution has the following advantages or beneficial effects:

[0013] 1. By setting the wheel seat assembly, when the steel pipe rotates forward, the oil cylinder makes the tire contact with the polyurethane layer, providing a force to press the steel pipe, thereby improving the fit of the polyurethane layer;

[0014] 2. The use of pneumatic tires can prevent the tire from being too hard and damaging the polyurethane layer;

[0015] 3. By setting up the pitch adjustment device, the angles of multiple groups of wheel seat assemblies can be adjusted at the same time, and the angles are guaranteed to be consistent, ensuring that the walking track of the contact point between the wheel seat assembly and the polyurethane layer on the outer surface of the steel pipe is a spiral line, thereby improving the lamination quality;

[0016] 4. By arranging a polytetrafluoroethylene plate between the rotating seat and the base, the friction between the base and the rotating seat can be reduced;

[0017] 5. By setting a counterweight on the side of the base close to the oil cylinder, it can ensure that both sides of the device are in a balanced state, avoiding the phenomenon that the weight of one side of the wheel seat assembly is too heavy and the pressure on the polyurethane layer on the surface of the steel pipe is too high, resulting in uneven pressing or even damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the front view of the utility model;

[0019] Figure 2 It is a left view of the utility model;

[0020] Figure 3 It is a top view of the utility model;

[0021] Figure 4 This is the front view of the positional relationship between the steel tube and the tire when they are not in contact;

[0022] Figure 5 This is the front view of the positional relationship between the steel tube and the tire when in contact;

[0023] Figure 6 It is a top view of the positional relationship between the steel tube and the tire when they are not in contact;

[0024] Figure 7 It is a top view of the positional relationship between the steel pipe and the tire when they are in contact;

[0025] Figure 8 It is a schematic diagram of the traveling mode of the steel pipe.

[0026] Wherein: 1. Wheel seat assembly; 101. Wheel seat; 102. Tire; 103. Axle; 2. Rotary seat; 3. Base; 4. Traveling device; 41. Wheel; 42. Rotating shaft; 5. Pitch adjustment device; 51. Ratchet adjustment mechanism; 52. Connecting rod; 6. Oil cylinder; 7. Fixed seat; 8. Ear seat; 9. Polytetrafluoroethylene plate; 10. Pin shaft; 11. Steel pipe; 12. Counterweight. Specific implementation mode

[0027] In order to clearly illustrate the technical features of this solution, the present utility model will be elaborated in detail below through specific implementation modes and in conjunction with its attached drawings.

[0028] Embodiment 1

[0029] Refer to Figures 1 to 8 , a hard polyurethane thermal insulation pipe chuck type foaming and shaping device, including a wheel seat assembly 1, a rotary seat 2, a base 3, a traveling device 4, a pitch adjustment device 5 and a power device. The wheel seat assembly 1 is connected to the rotary seat 2 through a pin shaft 10. The rotary seat 2 is rotatably connected to the base 3. The traveling device 4 is connected to the base 3. One end of the pitch adjustment device 5 is connected to the rotary seat 2 and the other end is connected to the base 3. The wheel seat assembly 1 includes a tire 102, a wheel seat 101 and an axle 103. The wheel seat 101 is connected to the rotary seat 2. The axle 103 is rotatably connected to the wheel seat 101. The tire 102 is connected to the axle 103. The traveling device 4 includes a wheel 41 and a rotating shaft 42. The rotating shaft 42 is connected to the base 3. The wheel 41 is connected to the rotating shaft 42.

[0030] As Figure 1 and Figure 2 shown, the wheel seat assembly 1 and the rotary seat 2 are arranged in an array on the base 3.

[0031] As Figures 1 to 3 shown, the pitch adjustment device 5 includes a ratchet adjustment mechanism 51 and a connecting rod 52. One end of the ratchet adjustment mechanism 51 is connected to the rotary seat 2 and the other end is connected to the base 3. The arrayed wheel seat assemblies 1 are connected through the connecting rod 52.

[0032] The tire 102 adopts an inflated tire 102.

[0033] As Figure 1 shown, the power device adopts an oil cylinder 6. The oil cylinder 6 is connected to the ground through a fixed seat 7. An ear seat 8 is arranged on the base 3. The ear seat 8 is connected to the output end of the oil cylinder 6.

[0034] AsFigure 1 As shown, a low friction coefficient material plate is provided between the rotating base 2 and the base 3; the low friction coefficient material plate is a polytetrafluoroethylene plate 9.

[0035] As Figure 1 , Figure 4 and Figure 5 As shown, a counterweight 12 is provided on one side of the base 3 close to the power device.

[0036] Principle and operation process

[0037] The utility model realizes the pressing of the pneumatic tire 102 against the polyurethane layer by arranging multiple groups of wheel seat assemblies 1 in cooperation with the ratchet adjusting mechanism 51 and the connecting rod 52; when the ratchet adjusting mechanism 51 is rotated, the rotating base 2 connected to the ratchet adjusting mechanism 51 will rotate in place. At the same time, the arrayed wheel seat assemblies 1 and the rotating base 2 can achieve synchronous rotation through the connecting rod 52, ensuring that the rotation angles of the multiple groups of wheel seat assemblies 1 are the same. By adjusting the appropriate angle, the walking trajectory of the contact point between the wheel seat assembly 1 and the polyurethane layer on the outer surface of the steel pipe 11 can be made into a spiral line.

[0038] When spraying the polyurethane layer on the steel pipe 11, the steel pipe 11 is installed on the turntables of two mobile trolleys. The steel pipe 11 rotates and advances. When the front end of the steel pipe 11 reaches the device, the piston rod of the oil cylinder 6 extends, pushing the base 3 to move towards the steel pipe 11. The base 3 drives the rotating base 2 and the wheel seat assembly 1 to move towards the steel pipe 11. When the pneumatic tire 102 of the wheel seat assembly 1 contacts the polyurethane layer on the outer surface of the steel pipe 11, the oil cylinder 6 stops working. At this time, the steel pipe 11 rotates and advances, and the pneumatic tire 102 of the wheel seat assembly 1 always presses the polyurethane layer on the surface of the steel pipe 11, playing a role in flattening the polyurethane layer; when the end of the steel pipe 11 reaches the device, the oil cylinder 6 starts, controls the piston rod to retract, the base 3 returns, and the pneumatic tire 102 moves away from the steel pipe 11, waiting for the arrival of the next steel pipe 11 to repeat the operation.

[0039] Although the specific implementation manners of the utility model are described above in conjunction with the drawings, it is not a limitation to the protection scope of the utility model. Based on the technical solutions of the utility model, various modifications or deformations that can be made by those skilled in the art without creative efforts are still within the protection scope of the utility model.

Claims

1. A rigid polyurethane insulation pipe chuck type foaming and shaping device, characterized in that: The invention comprises a wheel seat assembly (1), a rotating seat (2), a base (3), a walking device (4), a pitch adjustment device (5) and a power device, wherein the wheel seat assembly (1) is connected to the rotating seat (2) via a pin shaft (10), the rotating seat (2) is rotatably connected to the base (3), the walking device (4) is connected to the base (3), one end of the pitch adjustment device (5) is connected to the rotating seat (2), and the other end is connected to the base (3); the wheel seat assembly (1) is connected to the rotating seat (2) and the other end is connected to the base (3); ) comprises a tire (102), a wheel seat (101) and a wheel axle (103), wherein the wheel seat (101) is connected to a rotating seat (2), the wheel axle (103) is rotatably connected to the wheel seat (101), and the tire (102) is connected to the wheel axle (103); the walking device (4) comprises a wheel (41) and a rotating shaft (42), the rotating shaft (42) is connected to a base (3), and the wheel (41) is connected to the rotating shaft (42).

2. A rigid polyurethane thermal insulation pipe chuck type foaming and shaping device according to claim 1, characterized in that: The wheel seat assembly (1) and the rotating seat (2) are arranged in an array on the base (3).

3. A rigid polyurethane thermal insulation pipe chuck type foaming and shaping device according to claim 2, characterized in that: The pitch adjustment device (5) comprises a ratchet adjustment mechanism (51) and a connecting rod (52); one end of the ratchet adjustment mechanism (51) is connected to the rotating seat (2), and the other end is connected to the base (3); the wheel seat assemblies (1) arranged in the array are connected via the connecting rod (52).

4. The rigid polyurethane thermal insulation pipe chuck type foaming and shaping device according to claim 1, characterized in that: The tire (102) is a pneumatic tire (102).

5. The rigid polyurethane thermal insulation pipe chuck type foaming and shaping device according to claim 1, characterized in that: The power device adopts an oil cylinder (6), and the oil cylinder (6) is connected to the ground through a fixing seat (7). The base (3) is provided with an ear seat (8), and the ear seat (8) is connected to the output end of the oil cylinder (6).

6. The rigid polyurethane thermal insulation pipe chuck type foaming and shaping device according to claim 1, characterized in that: A polytetrafluoroethylene plate (9) is provided between the rotating seat (2) and the base (3).

7. The rigid polyurethane thermal insulation pipe chuck type foaming and shaping device according to claim 1, characterized in that: A counterweight (12) is provided on a side of the base (3) close to the power device.

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