Finned tube suspension arm type tube bending machine

Abstract

The utility model relates to a finned tube lazy arm type tube bending machine, which comprises a tube bending machine frame 10, a rotary lazy arm 20 and a hanging frame 30, a rotary roller machine head 40 is arranged on the tube bending machine frame 10, an aluminum finned tube is bent by the rotary roller machine head 40, the rotary lazy arm 20 rotates above the tube bending machine frame 10, the hanging frame 30 is provided with a hanging rolling shaft 31, and the hanging rolling shaft 31 is connected with the rotary lazy arm 20. The hanging rolling shaft 31 is arranged in the horizontal direction and corresponds to the lower edge of the aluminum finned tube. The pipe bending machine has the advantages that the rotary suspension arm is arranged above the roller machine head, rotates in the air and does not occupy the ground area, the rotary suspension arm is installed on the pipe bending machine frame through the rotary stand column and the outer tooth rotary supporting bearing, the installation structure is simple, rotation is stable, equipment movement is convenient, and installation and debugging are convenient. The walking beams are adopted to drive the hanging frames to move, the number of the hanging frames can be reduced, and the finned tubes can move conveniently.

Description

Technical Field

[0001] This utility model relates to a finned tube forming and processing device, and more particularly to a finned tube boom-type tube bending machine. Background Technology

[0002] In large-scale refrigeration units, aluminum finned tubes are commonly used as heat exchangers (or evaporators). Single-piece aluminum alloy finned tube profiles can be bent to form multi-bend, rotating heat dissipation fin structures, achieving good cooling performance in practical applications. Aluminum alloy finned tube profiles typically require bending in application to form multi-bend, rotating structures, reducing or avoiding joint connections. Chinese invention patent (application number 2023113716911) discloses a reciprocating bending device for finned tube profiles, which reciprocates and bends finned tube profiles to form an S-shaped multi-bend, rotating structure. In this technical solution, the finned tube support frame is installed on a circular track on the ground, occupying a large amount of ground space, making the equipment inconvenient to move, and complicating installation and debugging. Utility Model Content

[0003] The purpose of this invention is to propose a finned tube boom-type tube bending machine to provide more options for mechanized finned tube bending processing.

[0004] To achieve the above objectives, the technical solution of this utility model is: a finned tube boom-type tube bending machine, characterized in that it includes a bending machine frame 10, a rotary boom 20, and a hanging frame 30. The bending machine frame 10 is provided with a rotating roller head 40, which performs bending processing on aluminum finned tubes. The rotary boom 20 rotates above the bending machine frame 10. The hanging frame 30 is provided with a hanging roller 31, which is arranged horizontally and corresponds to the lower edge of the aluminum finned tube.

[0005] Furthermore, in order to ensure that the slewing boom meets the requirements of the finned tube bending process and has a lightweight and stable structure, the slewing boom 20 is provided with a slewing column 21. The slewing column 21 is located at the middle position in the length direction of the slewing boom 20 and on one side in the width direction of the slewing boom 20. The slewing boom 20 adopts a truss structure. The slewing boom 20 is fixed to the slewing column 21 by a fixing frame 22. A diagonal tie rod 23 is provided between the top of the slewing column 21 and the slewing boom 20.

[0006] Furthermore, in order to enable the slewing boom to have good slewing function, the slewing boom 20 is provided with a slewing column 21, the pipe bending frame 10 is provided with an external tooth slewing bearing 11, the slewing column 21 is fixed on the external tooth slewing bearing 11, and the pipe bending frame 10 is provided with a slewing motor 12, which drives the external tooth slewing bearing 11 to rotate.

[0007] Furthermore, in order to coordinate the movements of the slewing boom and the roller head, the rotation center of the slewing boom 20 corresponds to the middle position of the roller head 40.

[0008] Furthermore, to avoid conflict between the hanging bracket and the finned tube input side, the hanging bracket 30 is provided with an L-shaped hanging bracket body 32, and the hanging roller 31 is located at the lower end of the hanging bracket body 32.

[0009] Furthermore, to avoid conflict between the hanging frame and the roller head, multiple hanging frames are distributed along the slewing arm 20, with the hanging frame 30 avoiding the roller head 40 in the middle of the slewing arm 20.

[0010] Furthermore, in order to make the aluminum finned tube move more smoothly, a traveling beam 50 is provided on the slewing boom 20. The traveling beam 50 moves along the slewing boom 20, and multiple hanging brackets 30 are provided on the traveling beam 50.

[0011] Furthermore, in order to enable motorized movement, the traveling beam 50 is equipped with a traveling motor 51.

[0012] Furthermore, in order to achieve the bending process of aluminum finned tubes, the bending frame 10 is provided with a roller frame 60, a first shaft 61, a second shaft 62, and a drive shaft 63. The drive shaft 63 drives the roller head 40 to rotate. The roller head is provided with a first roller 41 and a second roller 42. The first shaft 61 and the second shaft 62 are movable shafts that move axially. The first roller 41 is provided with a first roller shaft hole 43, and the second roller 42 is provided with a second roller shaft hole 44. The first shaft 61 passes through the first roller shaft hole 43, causing the roller head 40 to rotate around the first shaft 61. The second shaft 62 passes through the second roller shaft hole 44, causing the roller head 40 to rotate around the second shaft 62.

[0013] The beneficial effects of this utility model are as follows: A rotary boom is used, positioned above the roller head. This boom rotates in the air, without occupying ground space. The boom is mounted on the bending machine frame via a rotary column and an external gear rotary bearing. The installation structure is simple, the rotation is stable, and the equipment is easy to move, facilitating installation and debugging. Using a traveling beam to move the hanging frame reduces the number of hanging frames and facilitates the movement of the finned tubes.

[0014] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0015] Figure 1 This is a structural diagram of the utility model;

[0016] Figure 2 yes Figure 1 A schematic diagram showing the slewing boom 20 rotated 180°;

[0017] Figure 3 This is an exploded view of the structure of the pipe bending machine frame 10, the rotary boom 20, the rotary roller head 40, and the rotary roller frame 60 of this utility model;

[0018] Figure 4 This is a structural diagram of the hanging bracket 30 of this utility model;

[0019] Figure 5 This is an enlarged view of the structure of the roller head 40 and roller frame 60 of this utility model;

[0020] Figure 6 This is an exploded view of the structure of the rotary roller head 40, rotary roller frame 60, drive shaft and drive motor of this utility model;

[0021] Figure 7 This is a cross-sectional view of the roller head 40 of this utility model;

[0022] Figure 8 This is a schematic diagram of the operation of this utility model. The aluminum finned tube 70 passes through the roller head 40, and the hanging roller 31 (31a) on one side of the rotating arm 20 lifts the aluminum finned tube 70 that passes through the roller head 40.

[0023] Figure 9 This is a schematic diagram of the operation of this utility model. The rotating roller head 40 rotates, the aluminum finned tube 70 is processed and bent, and the rotating boom 20 rotates in coordination with the rotating roller head 40.

[0024] Figure 10 This is a schematic diagram of the operation of this utility model. The feeding straightening machine 80 pushes the aluminum finned tube 70 again, and the aluminum finned tube 70 (together with the bent section) moves to the hanging roller 31 (31b) on the other side.

[0025] Figure 11 This is a schematic diagram of the operation of this utility model. The roller head 40 rotates again (rotation direction is the same as...). Figure 8 Conversely, the slewing boom 20 and the roller head 40 rotate in tandem.

[0026] Figure 12 This is a structural diagram of the S-shaped aluminum finned tube with multiple bends and rotations manufactured according to this utility model;

[0027] Figure 13 This is a structural diagram of the present invention, showing a traveling beam 50 mounted on a rotating boom 20.

[0028] Figure 14 This is an exploded view of the structure of the rotary boom 20 and the traveling beam 50 of this utility model;

[0029] Figure 15 This is a schematic diagram of the traveling beam 50 of this utility model traveling on the slewing boom 20;

[0030] Figure 16 This is a schematic diagram of the slewing boom 20 driving the traveling beam 50 to rotate according to the present invention;

[0031] Figure 17 yes Figure 16 A schematic diagram showing the movement of the traveling beam 50 along the slewing boom 20. Detailed Implementation

[0032] Example 1:

[0033] like Figures 1 to 7 A finned tube boom type pipe bending machine includes a pipe bending frame 10, a slewing boom 20 and a hanging frame 30.

[0034] The pipe bending frame 10 is equipped with a roller head 40, a roller frame 60, a first shaft 61, a second shaft 62, a drive shaft 63, and a drive motor 64. The drive shaft 63 drives the roller head 40 to rotate.

[0035] The roller head 40 is provided with a first roller 41 and a second roller 42, and the aluminum finned tube 70 passes between the first roller 41 and the second roller 42. The first shaft 61 and the second shaft 62 are axially movable shafts. The first roller 41 has a first roller shaft hole 43, and the second roller 42 has a second roller shaft hole 44. When the first shaft 61 enters the first roller shaft hole 43 (while the second shaft 62 exits the second roller shaft hole 44), the roller head 40 rotates around the first shaft 61; when the second shaft 62 enters the second roller shaft hole 44 (while the first shaft 62 exits the first roller shaft hole 43), the roller head 40 rotates around the second shaft 62. The roller head 40 performs bending processing on the aluminum finned tube.

[0036] In this embodiment, the roller frame 60 has an upper frame plate 65 and a lower frame plate 66. The roller frame 60 has a first shaft hole 67 and a second shaft hole 68 that pass through the upper frame plate 65 and the lower frame plate 66. The axes of the first shaft hole 67 and the second shaft hole 68 are perpendicular to the upper frame plate 65 and the lower frame plate 66. The roller head 40 is embedded between the upper frame plate 65 and the lower frame plate 66. Bearings are provided at the first shaft hole 67 and the second shaft hole 68, which are bearing holes. The center distance L1 between the first shaft hole 67 and the second shaft hole 68 is equal to the center distance L2 between the first roller 41 and the second roller 42.

[0037] To shorten the operating stroke of the first shaft 61 and the second shaft 62, a first spindle 45 is provided in the first roller shaft hole 43, and a second spindle 46 is provided in the second roller shaft hole 44. The first shaft 61 enters the first roller shaft hole 43 from the top, and pushes the first spindle 45 from the bottom out of the first roller shaft hole 43 and into the first shaft hole 67. The second shaft 62 enters the second roller shaft hole 44 from the top, and pushes the second spindle 46 from the bottom out of the second roller shaft hole 44 and into the second shaft hole 68. This enables the first roller 41 and the second roller 42 to rotate with the roller frame 60 at both ends. A first return spring 47 is provided in the first roller shaft hole 43. When the first shaft 61 exits the first roller shaft hole 43, the first return spring causes the first spindle 45 to disengage from the first shaft hole 67, thereby releasing the first roller 41 from the rotational engagement with the roller frame 60. A second return spring 48 is provided in the second roller shaft hole 44. When the second shaft 62 exits the second roller shaft hole 44, the second return spring causes the second spindle 46 to disengage from the second shaft hole 68, thereby releasing the second roller 42 from the rotational engagement with the roller frame 60.

[0038] The first shaft 61 is driven by the first cylinder 69, and the second shaft 62 is driven by the second cylinder 6a.

[0039] The drive shaft 63 is a universal joint, and ball joints 6b are provided at both ends of the drive shaft 63. A torque limiter 6c is provided between the drive shaft 63 and the drive motor 64.

[0040] The slewing boom 20 adopts a truss structure and is equipped with a slewing column 21. The slewing column 21 is located at the middle position in the length direction of the slewing boom 20 and on one side in the width direction of the slewing boom 20. The slewing boom 20 is fixed to the slewing column 21 by a fixing frame 22. A diagonal tie rod 23 is provided between the top of the slewing column 21 and the slewing boom 20, so that the slewing boom forms a stable integral structure.

[0041] The pipe bending machine frame 10 is equipped with an external tooth slewing bearing 11, and the slewing column 21 is fixed on the external tooth slewing bearing 11. The pipe bending machine frame 10 is equipped with a slewing motor 12, which drives a drive gear 16 to rotate through a reducer 15. The drive gear 16 drives the external tooth slewing bearing 11 to rotate, thereby realizing that the slewing motor 12 drives the slewing boom 20 to rotate.

[0042] The rotation center of the slewing boom 20 corresponds to the middle position of the roller head 40, that is, the rotation center of the slewing boom 20 corresponds to the middle position of the line connecting the first shaft 61 and the second shaft 62.

[0043] The hanging frame 30 has an L-shaped hanging frame body 32, which extends away from the rotating column 21. The hanging roller 31 is located at the lower end of the hanging frame body 32 and extends towards the rotating column 21. The hanging roller 31 is arranged horizontally. Multiple hanging frames are distributed along the rotating boom 20. The spacing L3 between the hanging frames 30 in the middle of the rotating boom 20 is such that the hanging frames avoid the roller head 40.

[0044] The slewing boom 20 rotates above the pipe bending machine frame 10, and the hanging roller 31 corresponds to the lower edge of the aluminum finned tube.

[0045] When the finned tube boom type pipe bending machine is working, the slewing boom 20 and the rotating roller head 10 rotate together.

[0046] like Figures 8 to 11 A feeding straightener 80 is provided in the feeding direction of the roller head 40. A feeding bridge 81 is provided between the roller frame 60 and the feeding straightener 80. The feeding bridge 81 is provided with multiple finned tube guide wheels 82. The feeding straightener 80 pushes the aluminum finned tube 70 through the roller head 40, and the finned tube guide wheels 82 guide the aluminum finned tube in the direction of travel.

[0047] like Figure 8 As shown, the feeding straightener 80 pushes the aluminum finned tube 70 through the roller head 40, and the hanging roller 31 (31a) on one side of the rotating arm 20 lifts the aluminum finned tube 70 that passes through the roller head 40.

[0048] like Figure 9 As shown, the rotating roller head 40 rotates, causing the aluminum finned tube 70 to bend. At the same time, the rotating boom 20 rotates in coordination with the rotating roller head 40, and the hanging roller 31 (31a) keeps the aluminum finned tube in a supporting state.

[0049] like Figure 10 As shown, the feeding straightener 80 pushes the aluminum finned tube 70 again, and the aluminum finned tube 70 (along with the bent section) moves to the hanging roller 31 (31b) on the other side.

[0050] like Figure 11As shown, the roller head 40 rotates again (rotation direction is the same as...). Figure 8 Conversely, the aluminum finned tube 70 is bent a second time, while the slewing boom 20 and the roller head 40 rotate together, and the hanging roller 31 (31b) keeps the aluminum finned tube in a supporting state.

[0051] This process is repeated to produce S-shaped aluminum finned tubes with multiple bends and rotations, such as... Figure 12 As shown.

[0052] To clearly illustrate the operation of the device, Figure 9 , Figure 10 and Figure 11 The base of the pipe bending machine frame 10 is concealed. Figure 11 It also conceals the feed bridge 81.

[0053] This embodiment uses a truss structure rotating boom. Compared with the prior art (Chinese Invention Patent 2023113716911), the fin tube rotating frame that carries the fin tube is installed on a circular track on the ground, which significantly reduces the ground space occupied by the device and makes the device easier to move, install and debug.

[0054] Example 2:

[0055] like Figures 13 to 15 A finned tube boom bending machine, this embodiment is a structural replacement of embodiment one.

[0056] In this embodiment, the slewing boom 20 is provided with a traveling beam 50, the slewing boom 20 is provided with a traveling beam track 24, the traveling beam 50 is provided with a traveling trolley 52, and the traveling trolley 52 is driven by a traveling motor 51, so that the traveling beam 50 moves along the slewing boom 20.

[0057] Multiple hanging brackets 30 are installed on the walking beam 50.

[0058] The hanging rollers 31 on the traveling beam 50 lift the aluminum finned tube 70 passing through the rotary head 40. As the feeding straightener 80 pushes the aluminum finned tube 70 forward through the rotary head 40, the traveling beam 50 moves in the same direction as the aluminum finned tube. Figure 15 or Figure 17 The illustrated action. When the rotary roller head 40 bends and processes the aluminum finned tube, the traveling beam 50 moves in coordination with the rotation of the rotary boom 20 until it moves to the side of the rotary boom 20 close to the feeding straightener 80, as shown. Figure 16 A gesture indicating an action.

[0059] In this embodiment, the hanger 30 can move with the aluminum finned tube, making the movement of the aluminum finned tube smoother and reducing the number of hangers required.

Claims

1. A finned tube boom-type pipe bending machine, characterized in that, The device includes a tube bending frame (10), a rotary boom (20), and a hanging frame (30). The tube bending frame (10) is equipped with a rotating roller head (40) for bending aluminum finned tubes. The rotary boom (20) rotates above the tube bending frame (10). The hanging frame (30) is equipped with a hanging roller (31) which is horizontally positioned and corresponds to the lower edge of the aluminum finned tube.

2. The finned tube boom-type pipe bending machine according to claim 1, characterized in that, The slewing boom (20) is provided with a slewing column (21). The slewing column (21) is located at the middle position in the length direction of the slewing boom (20) and on one side in the width direction of the slewing boom (20). The slewing boom (20) adopts a truss structure. The slewing boom (20) is fixed on the slewing column (21) by a fixing frame (22). A diagonal tie rod (23) is provided between the top of the slewing column (21) and the slewing boom (20).

3. The finned tube boom-type pipe bending machine according to claim 1, characterized in that, The slewing boom (20) is provided with a slewing column (21), and the pipe bending machine frame (10) is provided with an external tooth slewing bearing (11). The slewing column (21) is fixed on the external tooth slewing bearing (11), and the pipe bending machine frame (10) is provided with a slewing motor (12). The slewing motor (12) drives the external tooth slewing bearing (11) to rotate.

4. The finned tube boom-type pipe bending machine according to claim 1, characterized in that, The rotation center of the slewing boom (20) corresponds to the middle position of the roller head (40).

5. The finned tube boom-type pipe bending machine according to claim 1, characterized in that, The hanging frame (30) is provided with an L-shaped hanging frame body (32), and the hanging roller (31) is located at the lower end of the hanging frame body (32).

6. The finned tube boom-type pipe bending machine according to claim 1, characterized in that, Multiple hangers are distributed along the slewing boom (20), with the hangers (30) avoiding the roller head (40) at the middle of the slewing boom (20).

7. The finned tube boom-type pipe bending machine according to claim 1, characterized in that, The slewing boom (20) is provided with a traveling beam (50), which moves along the slewing boom (20), and multiple hanging brackets (30) are provided on the traveling beam (50).

8. The finned tube boom-type pipe bending machine according to claim 7, characterized in that, The traveling beam (50) is equipped with a traveling motor (51).

9. The finned tube boom-type pipe bending machine according to claim 1, characterized in that, The bending frame (10) is provided with a roller frame (60), a first shaft (61), a second shaft (62) and a drive shaft (63). The drive shaft (63) drives the roller head (40) to rotate. The roller head is provided with a first roller (41) and a second roller (42). The first shaft (61) and the second shaft (62) are movable shafts that move along the axial direction. The first roller (41) is provided with a first roller shaft hole (43), and the second roller (42) is provided with a second roller shaft hole (44). The first shaft (61) passes through the first roller shaft hole (43) to make the roller head (40) rotate around the first shaft (61), and the second shaft (62) passes through the second roller shaft hole (44) to make the roller head (40) rotate around the second shaft (62).

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