Turnover machine for assembling tube bundle

Abstract

The utility model discloses an upender for assembling a tube bundle, which relates to the field of upenders and comprises a support frame, the support frame is rotatably connected with a base, and an overturning driving mechanism is connected with the base; the base is in an L shape and comprises a vertical base and a transverse base, a plurality of sliding bases are connected to the transverse base in a sliding mode, and all the sliding bases are connected to the same translation driving mechanism; each sliding seat is connected with a V-shaped support, and a first driving oil cylinder is arranged between each V-shaped support and the corresponding sliding seat. A rope hanging seat is arranged on one side of the transverse seat, a rope winder is arranged on the other side of the transverse seat, a steel wire rope is wound on the rope winder, and one end of the steel wire rope can be hung on the rope hanging seat. The turnover machine can drive a tube bundle assembly or an assembled heat exchanger to turn over by 90 degrees, so that the tube bundle assembly can be switched between a horizontal state and a vertical state, after the tube bundle is vertically placed through the turnover machine, a barrel is vertically lifted, the tube bundle assembly and a tube shell are vertically assembled, and the purposes of improving the assembly efficiency and reducing the risk of abrasion of a baffle plate are achieved.

Description

Technical Field

[0001] The utility model relates to the field of turning machines, in particular to a turning machine for pipe bundle assembly. Background Art

[0002] A horizontal heat exchanger is usually composed of a tube bundle and a tube shell. For large tube bundle assemblies (the tube bundle has been installed on the tube sheet) to be assembled into the tube shell, the existing method adopts horizontal (horizontal) assembly, that is, the tube bundle assembly is placed horizontally. During assembly, one end of the tube bundle assembly is lifted by a lifting device, and the middle is supported by a movable supporting device. The moving device and the lifting device cooperate to send the other end of the tube bundle assembly into the tube shell, and then the position of the moving device and the position of the tube bundle assembly are continuously adjusted to push the tube bundle assembly horizontally into the tube shell to complete the assembly of the tube bundle assembly and the tube shell.

[0003] From the above description of the existing assembly method, it can be known that it is necessary to continuously adjust the position of the moving device and the position of the tube bundle assembly. However, during the assembly process, since the tube bundle assembly weighs 60 tons, the dead weight of the moving device and the tube bundle assembly is very large, it is very difficult to adjust the position, and the assembly efficiency is low. In addition, when pushing the tube bundle group, since the other end of the tube bundle assembly enters the tube shell and is supported by the inner wall of the tube shell, the baffle and the inner wall of the tube shell will be worn to varying degrees.

[0004] In order to solve the above problems, a new solution is needed. Utility Model Content

[0005] The purpose of the utility model is to provide a turning machine for tube bundle assembly in view of the above-mentioned problems, which can turn the tube bundle assembly or the assembled tube bundle assembly and the tube shell 90 degrees, so that the tube bundle assembly can be converted between a horizontal state and a vertical state. After the tube bundle is turned to a vertical position by the turning machine, the cylinder is vertically lifted, and the tube bundle assembly and the tube shell are vertically assembled, so as to improve the assembly efficiency and reduce the risk of wear of the baffle.

[0006] The technical solution adopted by the utility model is as follows: a turning machine for pipe bundle assembly, comprising a supporting frame, the supporting frame is rotatably connected to a base, and there is a turning drive mechanism connected to the base to drive the base to rotate relative to the supporting frame; the base is L-shaped, comprising a vertical seat arranged vertically and a horizontal seat arranged horizontally, a plurality of slides are slidably connected to the horizontal seat, all the slides are connected to the same translation drive mechanism, and the translation drive mechanism can move all the slides horizontally along the horizontal seat; each slide is connected to a V-shaped bracket, and a first driving cylinder is arranged between the V-shaped bracket and the slide to adjust the distance between the V-shaped bracket and the slide; a rope hanging seat is arranged on one side of the horizontal seat, and a rope winding machine is arranged on the other side of the horizontal seat, a steel wire rope is wound on the rope winding machine, and one end of the steel wire rope can be hung on the rope hanging seat.

[0007] Further, the vertical seat is arranged at one end of the horizontal seat, and an inclined tie rod is provided between the vertical seat and the horizontal seat.

[0008] Further, the vertical line of the center of gravity of the base intersects the axis of rotation of the base.

[0009] Further, after the support frame supports the base, there is sufficient space below the base for the base to rotate.

[0010] Further, there is also a buffer device, which is arranged below the end of the horizontal seat far from the vertical seat; and / or there is also a hydraulic support mechanism, which is arranged below the position where the vertical seat is located after the base rotates.

[0011] Further, there are two flipping drive mechanisms, which are respectively located on both sides of the horizontal seat, including a flipping motor and a speed reducer. Semi-circular driven gears are arranged on both sides of the horizontal seat, and the output ends of the flipping motors on each side of the horizontal seat are respectively mechanically connected to the corresponding driven gears through the speed reducers.

[0012] Further, a chute is provided on the horizontal seat, all the sliding seats are located in the chute and are slidably connected to the chute. A lead screw is rotatably connected in the chute, the sliding seat is threadedly connected to the lead screw, and one end of the lead screw is mechanically connected to a translation motor.

[0013] Further, all the first driving oil cylinders are connected to the same first oil pump, and the rodless cavities of the first driving oil cylinders communicate with each other.

[0014] Further, the V-shaped bracket has two arms that are rotatably connected to each other, and a second driving oil cylinder is provided between each arm and the sliding seat.

[0015] Further, all the second driving oil cylinders are connected to the same second oil pump, and the rodless cavities of the second driving oil cylinders communicate with each other.

[0016] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present utility model are as follows:

[0017] The present utility model provides a flipping machine. When assembling the tube bundle assembly, it can flip the horizontally placed tube bundle assembly into a vertical state. Under the action of gravity, the shell can be sleeved on the tube bundle assembly in a vertical posture to achieve vertical assembly, without the need to adjust the position, which can improve the assembly efficiency and reduce the risk of wearing the baffle; after the assembly is completed, the flipping machine can be used to flip the assembled heat exchanger into a horizontal state to restore the horizontal placement of the heat exchanger. Description of the Drawings

[0018] The present utility model will be described by way of examples with reference to the accompanying drawings, wherein:

[0019] Figure 1 Is the oblique axonometric view of the present utility model;

[0020] Figure 2 Is the schematic diagram after the base is flipped 90°;

[0021] Figure 3 Is the schematic top view structure diagram of the present utility model;

[0022] Figure 4 Is the assembly schematic diagram of the sliding seat and the cross seat;

[0023] Markings in the figure: 1 - flipping motor; 2 - speed reducer; 3 - cross seat; 4 - V-shaped bracket; 5 - chute; 6 - first driving oil cylinder; 7 - driven gear; 8 - second driving oil cylinder; 9 - vertical seat; 10 - pull rod; 11 - hydraulic support mechanism; 12 - rope winding machine; 13 - rope hanging seat; 14 - translation motor; 15 - lead screw; 16 - sliding seat; 17 - buffer device; 18 - support frame. Specific embodiments

[0024] In the description of this specification, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this specification is usually placed during use. It is only for the convenience of describing this specification and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to this specification.

[0025] In addition, in the description of this specification, if terms such as "horizontal" and "vertical" are used, it does not mean that the components are required to be absolutely horizontal or hanging vertically, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that this structure must be completely horizontal, but can be slightly inclined.

[0026] In the description of this specification, it should also be noted that unless otherwise clearly specified and limited, if terms such as "set", "installed", "connected", "connected" are used, they should be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements.

[0027] Embodiment 1

[0028] Such as Figures 1-4As shown in the figure, a turnover machine for tube bundle assembly includes a support frame 18. The support frame 18 is rotationally connected to a base, and there is a turnover drive mechanism connected to the base to drive the base to rotate relative to the support frame 18; the base is L-shaped, including a vertical seat 9 arranged vertically and a horizontal seat 3 arranged horizontally. A plurality of sliding seats 16 are slidably connected to the horizontal seat 3, and all the sliding seats 16 are connected to the same translation drive mechanism, which can drive all the sliding seats 16 to translate horizontally along the horizontal seat 3; a V-shaped bracket 4 is connected to each sliding seat 16, and a first driving oil cylinder 6 is arranged between the V-shaped bracket 4 and the sliding seat 16 to adjust the distance between the V-shaped bracket 4 and the sliding seat 16; a rope hanging seat 13 is arranged on one side of the horizontal seat 3, and a rope winding machine 12 is arranged on the other side of the horizontal seat 3. A steel wire rope is wound on the rope winding machine 12, and one end of the steel wire rope can be hung on the rope hanging seat 13.

[0029] In this embodiment, the turnover drive mechanism can drive the base to rotate 90°, that is, to realize the conversion between the vertical arrangement and the horizontal arrangement of the horizontal seat 3 and the vertical seat 9; all the V-shaped brackets 4 jointly support the tube bundle assembly, and the sliding seats 16 can slide along the horizontal seat 3, so as to realize that the tube bundle assembly is brought closer to the vertical seat 9 through the V-shaped brackets 4 and abutted against the vertical seat 9 to ensure the stable position of the tube bundle assembly during turnover; the setting of the first driving oil cylinder 6, on the one hand, realizes the support of the V-shaped bracket 4, and on the other hand, when the tube shell is inserted, the first driving oil cylinder 6 can drive the V-shaped bracket 4 away from the tube bundle assembly to avoid position interference with the assembly of the tube shell; the steel wire rope cooperates with the rope winding machine 12 and the rope hanging seat 13. During turnover, the steel wire rope can be tightened after bypassing the outside of the tube bundle assembly or the assembled tube shell, so as to realize the restraint of the tube bundle assembly or the heat exchanger by the steel wire rope and the V-shaped bracket 4 to ensure the stable position.

[0030] Furthermore, the general process of assembling the tube bundle assembly by using this turnover machine is as follows:

[0031] S1: Place the tube bundle assembly on the V-shaped brackets 4, and all the V-shaped brackets 4 jointly support the tube bundle assembly;

[0032] S2: Start the translation drive mechanism. The translation drive mechanism drives all the sliding seats 16 to move towards the position of the vertical seat 9, and the V-shaped brackets 4 follow the movement, that is, the V-shaped brackets 4 drive the tube bundle assembly to approach the vertical seat 9 until one end of the tube bundle assembly abuts against the vertical seat 9;

[0033] S3: Wind one end of the steel wire rope around the tube bundle assembly and connect it to the rope hanging seat 13, and start the rope winding machine 12 to tighten the steel wire rope, and the steel wire rope restrains the tube bundle assembly;

[0034] S4: Start the turnover drive mechanism. The turnover drive mechanism drives the base to turn in a turnover posture with the vertical seat 9 moving downward until it turns 90°, the vertical seat 9 is in a horizontal arrangement, the horizontal seat 3 is in a vertical arrangement, and the tube bundle assembly is placed vertically.

[0035] S5: The wire rope coiler 12 releases the wire rope, disconnects the connection between the wire rope and the wire rope hanging seat 13, and the wire rope no longer restrains the tube bundle assembly; the first driving oil cylinder 6 drives the V-shaped bracket 4 away from the tube bundle assembly, and there are no longer any components around the tube bundle assembly that affect the sleeving of the tube shell.

[0036] S6: Lift the tube shell, and the tube shell is sleeved onto the tube bundle assembly from top to bottom to complete the installation of the tube bundle assembly and the tube shell, that is, complete the assembly of the heat exchanger.

[0037] S7: The first driving oil cylinder 6 drives the V-shaped bracket 4 to approach the heat exchanger, and the V-shaped bracket 4 abuts against the outer surface of the tube shell.

[0038] S8: Then, one end of the wire rope is wound around the heat exchanger and connected to the wire rope hanging seat 13, and the wire rope coiler 12 is started to tighten the wire rope, and the wire rope restrains the heat exchanger.

[0039] S9: Start the flipping drive mechanism. The flipping drive mechanism drives the base to flip with the vertical seat 9 moving upward in a flipping posture until it flips 90°. Then, the vertical seat 9 is arranged vertically and the horizontal seat 3 is arranged horizontally (i.e., reset), and the heat exchanger is placed horizontally to complete the horizontal placement of the heat exchanger.

[0040] It should be noted that the wire rope coiler 12 is a winch, and its structure is known to those skilled in the art and usually has a self-locking function. Therefore, there is no need to worry about the wire rope loosening during flipping.

[0041] In summary, this embodiment provides a flipping machine. When assembling the tube bundle assembly, it can flip the horizontally placed tube bundle assembly into a vertical state. Under the action of gravity, the tube shell can be sleeved on the tube bundle assembly in a vertical posture to achieve vertical assembly without adjusting the position, which can improve the assembly efficiency and reduce the risk of wearing the baffle plate. After the assembly is completed, the flipping machine can be used to flip the assembled heat exchanger into a horizontal state to restore the horizontal placement of the heat exchanger.

[0042] Embodiment 2

[0043] On the basis of Embodiment 1, further specific implementation manners are proposed.

[0044] A feasible implementation manner is that the vertical seat 9 is arranged at one end of the horizontal seat 3, and an inclined tie rod 10 is provided between the vertical seat 9 and the horizontal seat 3 to increase the overall strength of the base through the inclined tie rod 10.

[0045] A feasible implementation manner is that the vertical line of the center of gravity of the base intersects the axis of rotation of the base, reducing the lever arm between the center of gravity and the axis of rotation of the base during flipping, so as to achieve the purpose of flipping with a lower torque.

[0046] A feasible implementation method is that after the support frame 18 supports the base, there is enough space under the base for the base to rotate, ensuring the smooth progress of the flipping; feasibly, the height of the connection position between the support frame 18 and the base is increased so that the vertical distance between this connection position and the bottom of the support frame 18 is sufficient; or the flipping machine can be installed in a pit type. On the one hand, the overall height of the flipping machine is reduced, and on the other hand, the pit can be dug into a stepped shape, and the support frame 18 can be installed at the stepped position at a higher level, so that there is enough space under the base for the base to flip.

[0047] A feasible implementation method also has a buffer device 17. The buffer device 17 is arranged below one end of the cross base 3 away from the vertical base 9. The buffer device 17 can be a compression spring or a damping hydraulic cylinder. When the cross base 3 is in a horizontal state, the lower end face of the cross base 3 can contact the buffer device 17; the purpose of setting the buffer device 17 is to effectively reduce the impact caused by inertia when the cross base 3 flips from the vertical state to the horizontal state, and at the same time prevent the cross base 3 from tilting too much due to the excessive center of gravity offset caused by the heat exchanger, resulting in the heat exchanger slipping out of the cross base 3, achieving the purpose of protecting the cross base 3 and the heat exchanger.

[0048] A feasible implementation method also has a hydraulic support mechanism 11. The hydraulic support mechanism 11 is arranged below the position where the vertical base 9 is located after the base rotates; the hydraulic support mechanism 11 is actually a hydraulic cylinder. Before the vertical base 9 moves downward, the hydraulic cylinder retracts to avoid position interference with the movement of the vertical base 9; after the vertical base 9 moves in place, the hydraulic cylinder extends to support the lower surface of the vertical base 9; through this hydraulic cylinder support mechanism, the impact on the vertical base 9 during the hoisting and sleeving of the pipe shell can be reduced, and the base can be limited when it flips to the vertical position.

[0049] A feasible implementation method is that there are two flipping drive mechanisms, which are respectively located on both sides of the cross base 3 and include a flipping motor 1 and a speed reducer 2. Semi-circular driven gears 7 are arranged on both sides of the cross base 3. The output end of the flipping motor 1 on each side of the cross base 3 is mechanically connected to the corresponding driven gear 7 through the speed reducer 2; the two flipping drive mechanisms drive the base to flip synchronously, making the movement of the base flipping more stable; the output end of the flipping motor 1 is connected with a driving gear, the input end of the speed reducer 2 is connected with an input intermediate gear, and the output end of the speed reducer 2 is connected with an output intermediate gear. The driving gear meshes with the input intermediate gear, and the output intermediate gear meshes with the driven gear 7. According to the specific situation of the arrangement method, bevel gears or spur gears are selected to realize the mechanical connection between the flipping motor 1 and the base, that is, the flipping drive mechanism drives the base to flip.

[0050] It should be noted that the driven gear 7 is designed to be semi-circular, which can effectively control the rotation angle of the driven gear 7 to ensure that the flipping angle of the base is 90°.

[0051] A feasible implementation manner is that a slide groove 5 is opened on the horizontal seat 3, all slide seats 16 are located in the slide groove 5 and are slidably connected to the slide groove 5, a screw rod 15 is rotatably connected in the slide groove 5, the slide seat 16 is threadedly connected to the screw rod 15, and one end of the screw rod 15 is mechanically connected to a translation motor 14; the sliding stroke of the slide groove 5 is in the direction of approaching / moving away from the vertical seat 9, and the translation motor 14 and the screw rod 15 are mechanically connected through gear meshing transmission, and the translation motor 14 outputs the rotational motion to the screw rod 15, and the screw rod 15 rotates around its own axis, so that the slide seat 16 slides along the screw rod 15 (slide groove 5), that is, the slide seat 16 moves with the V-shaped bracket 4, and then brings the tube bundle assembly close to the vertical seat 9, so that one end of the tube bundle assembly rests on the vertical seat 9.

[0052] It should be noted that the size of the slide 16 matches the size of the slide slot 5 , that is, the slide 16 is limited in rotation by the slide slot 5 to ensure that the slide 16 can perform translational motion along the slide slot 5 .

[0053] A feasible implementation method is that all the first driving cylinders 6 are connected to the same first oil pump, and the rodless chambers of the first driving cylinders 6 are interconnected, so as to realize the extension and retraction of the first driving cylinders 6 and synchronize the extension and retraction amount, thereby providing a basis for all V-shaped brackets 4 to maintain the same height, thereby providing a basis for the tube bundle assembly to be supported in a horizontal state.

[0054] A feasible implementation manner is that the V-shaped bracket 4 has two arms rotatably connected to each other, and a second driving cylinder 8 is arranged between each arm and the slide 16. The angle between each arm in the same V-shaped bracket 4 can be adjusted by extending and retracting the output shaft of the second driving cylinder 8 to adapt to tube bundle assemblies and tube shells of different diameters.

[0055] A feasible implementation manner is that all the second driving cylinders 8 are connected to the same second oil pump, and the rodless cavities of the second driving cylinders 8 are interconnected, so that the extension and retraction of the second driving cylinders 8 and the amount of extension and retraction are synchronized, thereby making the angles between each arm in all V-shaped brackets 4 the same to match the same tube bundle assembly and tube shell.

[0056] It should be noted that the first driving cylinder 6 can be connected to the position where the two arms are rotatably connected in the V-shaped bracket 4. The V-shaped bracket 4 is supported by the first driving cylinder 6 and the second driving cylinder 8 to ensure sufficient supporting performance.

[0057] The present invention is not limited to the above-mentioned specific implementation modes, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.

Claims

1. A turnover machine for tube bundle assembly, characterized in that: It includes a support frame (18), the support frame (18) is rotatably connected to the base, and there is a tipping drive mechanism connected to the base to drive the base to rotate relative to the support frame (18); the base is L-shaped, including a vertical seat (9) arranged vertically and a horizontal seat (3) arranged horizontally. A plurality of sliding seats (16) are slidably connected to the horizontal seat (3), and all the sliding seats (16) are connected to the same translation drive mechanism, which can drive all the sliding seats (16) to translate horizontally along the horizontal seat (3); a V-shaped bracket (4) is connected to each sliding seat (16), and a first driving oil cylinder (6) is arranged between the V-shaped bracket (4) and the sliding seat (16) to adjust the distance between the V-shaped bracket (4) and the sliding seat (16); a rope hanging seat (13) is arranged on one side of the horizontal seat (3), and a rope winding machine (12) is arranged on the other side of the horizontal seat (3). A steel wire rope is wound on the rope winding machine (12), and one end of the steel wire rope can be hung on the rope hanging seat (13).

2. The turnover machine according to claim 1, characterized in that: The vertical seat (9) is arranged at one end of the horizontal seat (3), and an inclined pull rod (10) is arranged between the vertical seat (9) and the horizontal seat (3).

3. The turnover machine according to claim 1, characterized in that: The vertical line of the center of gravity of the base intersects the axis of rotation of the base.

4. The turnover machine according to claim 1, characterized in that: After the support frame (18) supports the base, there is a space for the base to rotate below the base.

5. The turnover machine according to claim 1, characterized in that: There is also a buffer device (17), and the buffer device (17) is arranged below the end of the horizontal seat (3) far from the vertical seat (9); or / and there is also a hydraulic support mechanism (11), and the hydraulic support mechanism (11) is arranged below the position where the vertical seat (9) is located after the base rotates.

6. The turnover machine according to claim 1, characterized in that: There are two tipping drive mechanisms, which are respectively located on both sides of the horizontal seat (3), including a tipping motor (1) and a speed reducer (2). Semi-circular driven gears (7) are arranged on both sides of the horizontal seat (3). The output end of the tipping motor (1) on each side of the horizontal seat (3) is mechanically connected to the corresponding driven gear (7) through the speed reducer (2).

7. The turnover machine according to claim 1, characterized in that: A chute (5) is opened on the horizontal seat (3), and all the sliding seats (16) are located in the chute (5) and slidably connected to the chute (5). A lead screw (15) is rotatably connected in the chute (5), and the sliding seat (16) is threadedly connected to the lead screw (15). One end of the lead screw (15) is mechanically connected to a translation motor (14).

8. The turnover machine according to claim 1, characterized in that: All the first driving oil cylinders (6) are connected to the same first oil pump, and the rodless cavities of the first driving oil cylinders (6) are interconnected.

9. The turnover machine according to claim 1, characterized in that: The V-shaped bracket (4) has two arms that are rotatably connected to each other, and a second driving oil cylinder (8) is arranged between each arm and the sliding seat (16).

10. The turnover machine according to claim 9, characterized in that: All the second driving oil cylinders (8) are connected to the same second oil pump, and the rodless cavities of the second driving oil cylinders (8) are interconnected.

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