Heat exchanger bending mechanism

Abstract

The utility model relates to the technical field of bending mechanisms, and discloses a heat exchanger bending mechanism which comprises a bottom frame, a rotating seat is rotatably connected to the bottom frame, a motor is fixedly connected to the bottom frame, the motor is connected with the rotating seat through an output shaft, a first screw rod is fixedly connected to the top of the rotating seat, and a plurality of machining wheels with different or same diameters are fixed to the first screw rod. Annular semicircular grooves with different diameters or the same diameter are formed in the outer side wall of each machining wheel, a supporting plate is fixedly connected to the rotating seat, two sliding rails and a hydraulic rod are fixedly connected to the supporting plate, a sliding seat is slidably connected to the sliding rails, a fixing frame is fixedly installed on the sliding seat, and the hydraulic rod is fixedly connected with the fixing frame. The fixing frame is in threaded connection with second screws at equal intervals from top to bottom, one end of each second screw is rotationally connected with a standard connecting block, and a clamping base is detachably installed on each standard connecting block. During use, a worker does not need to disassemble and replace the processing wheel and the clamping seat, so that the processing time is prevented from being delayed, and the processing efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bending mechanisms, in particular to a bending mechanism for a heat exchanger. Background Art

[0002] Heat exchangers (also called heat exchangers or heat exchange equipment) are devices used to transfer heat from hot fluid to cold fluid to meet specified process requirements. They are an industrial application of convective heat transfer and heat conduction. Heat exchangers can be classified in different ways. According to their operating process, they can be divided into three categories: partition type, hybrid type, and heat storage type (or heat recovery type); according to the compactness of their surface, they can be divided into compact type and non-compact type.

[0003] During the processing and production of existing heat exchangers, the heat exchange tubes need to be U-bent, so a special bending structure is used for processing. When the existing heat exchange tube bending device bends different heat exchange tubes, it is necessary to replace the corresponding processing wheel and clamping block to adapt. Since the processing wheel is generally made of steel and is heavy, it is often necessary to use a lifting device. The entire replacement operation is cumbersome and time-consuming, which delays the processing efficiency of the heat exchange tube. In order to solve the above problems, a heat exchanger bending mechanism is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a heat exchanger bending mechanism in order to solve the above-mentioned problem.

[0005] The technical solution adopted by the utility model is as follows: a heat exchanger bending mechanism, comprising a base frame, a rotating seat is rotatably connected to the base frame, a motor is fixedly connected to the base frame, the motor is connected to the rotating seat through an output shaft, a screw rod is fixedly connected to the top of the rotating seat, a plurality of processing wheels with different or same diameters are sleeved on the screw rod, a gasket is arranged between two adjacent processing wheels, the gasket is sleeved on the screw rod, a locking nut is threadedly connected to the upper part of the screw rod, and a locking nut is provided on the outer wall of each processing wheel. There are annular semicircular grooves with different diameters or the same diameter. A support plate is fixedly connected to the swivel seat, two slide rails and a hydraulic rod are fixedly connected to the support plate, a slide seat is slidably connected to the slide rail, a fixed frame is fixedly installed on the slide seat, the piston rod of the hydraulic rod is fixedly connected to the fixed frame, the fixed frame is threadedly connected with screw rod 2 at equal intervals from top to bottom, one end of the screw rod 2 is rotatably connected with a standard connecting block, a clamp seat is detachably installed on the standard connecting block, and semicircular grooves with different diameters or the same diameter are clamped on the clamp seat.

[0006] In a preferred embodiment, a through hole is provided at the center of the processing wheel, the screw rod passes through the through hole, two opposite positioning grooves are provided on the outer wall of the screw rod, and two opposite positioning blocks are provided on the inner wall of the through hole, and the positioning blocks are inserted into the positioning grooves.

[0007] In a preferred embodiment, guide rods 1 are fixedly connected to both sides of the standard connection block, and the guide rods 1 are slidably connected to the fixing frame.

[0008] In a preferred embodiment, a mounting frame is fixedly connected to the base frame, a screw three is rotatably connected to the mounting frame, a lifting frame is threadedly connected to the screw three, a screw four is threadedly connected to the lifting frame, a moving frame is rotatably connected to one end of the screw four, and a plurality of V-shaped guide wheels are rotatably connected to the moving frame.

[0009] In a preferred embodiment, one side of the lifting frame is slidably connected to a second guide rod, and the second guide rod is fixedly mounted on the mounting frame.

[0010] In a preferred embodiment, guide rods 3 are fixedly connected to both sides of the movable frame, and the guide rods 3 are slidably connected to the lifting frame.

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0012] 1. In the utility model, a plurality of processing wheels and corresponding clamping seats are provided, so that when switching processing of different heat exchange tubes, it is not necessary to spend a lot of time to constantly disassemble and replace the processing wheels and clamping seats, thereby avoiding delays in processing and production and improving the processing efficiency of the heat exchange tubes. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the top view of the structure of the utility model;

[0015] Figure 3 It is a three-dimensional schematic diagram of the adjustment structure of the V-shaped guide wheel in the utility model;

[0016] Figure 4 It is a three-dimensional schematic diagram of the processing wheel and the screw in the utility model.

[0017] Markings in the figure: 1-base, 2-swivel seat, 3-motor, 4-screw rod 1, 5-processing wheel, 6-washer ring, 7-locking nut, 8-annular semicircular groove, 9-support plate, 10-slide rail, 11-hydraulic rod, 12-slide seat, 13-fixed frame, 14-screw rod 2, 15-standard connecting block, 16-clamp seat, 17-semicircular slot, 18-through hole, 19-positioning slot, 20-positioning block, 21-guide rod 1, 22-mounting frame, 23-screw rod 3, 24-lifting frame, 25-screw rod 4, 26-moving frame, 27-V-type guide wheel, 28-guide rod 2, 29-guide rod 3. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] The following will be combined Figure 1-Figure 4 A heat exchanger bending mechanism according to an embodiment of the utility model is described in detail.

[0020] Example:

[0021] The utility model provides a heat exchanger bending mechanism, referring to Figure 1 and Figure 2 As shown, it includes a base frame 1, a rotating seat 2 is rotatably connected to the base frame 1, a motor 3 is fixedly connected to the base frame 1, the motor 3 is connected to the rotating seat 2 through an output shaft, a screw rod 4 is fixedly connected to the top of the rotating seat 2, a plurality of processing wheels 5 of different or same diameters are sleeved on the screw rod 4, a gasket 6 is arranged between two adjacent processing wheels 5, the gasket 6 is sleeved on the screw rod 4, a locking nut 7 is threadedly connected to the upper part of the screw rod 4, an annular semicircular groove 8 of different or same diameters is opened on the outer wall of each processing wheel 5, a support plate 9 is fixedly connected to the rotating seat 2, two slide rails 10 and a hydraulic rod 11 are fixedly connected to the support plate 9, a slide rail 12 is slidably connected to the slide rail 10, and a fixed The fixing frame 13 is fixedly connected to the piston rod of the hydraulic rod 11, and the fixing frame 13 is threadedly connected with a screw rod 14 at equal intervals from top to bottom. One end of the screw rod 14 is rotatably connected with a standard connection block 15, and a clamping seat 16 is detachably mounted on the standard connection block 15. The clamping seat 16 is provided with semicircular grooves 17 of different or same diameters. This structure starts the hydraulic rod 11 to push the fixing frame 13, and the fixing frame 13 moves on the slide rail 10 through the slide seat 12, so that the clamping seat 16 on the fixing frame 13 is combined with the processing wheel 5, so as to clamp the heat exchange tube to be bent, and then the motor 3 is started to drive the rotating seat 2 to rotate, and then the processing wheel and the clamping seat 16 are driven to rotate at the same time, so as to perform a U-shaped bend on the heat exchange tube;

[0022] The above structure can fix the corresponding processing wheel 5 on the screw rod 4 according to the diameter of the heat exchange tube to be bent and the diameter of the U-shaped bending, and separate them at equal intervals by the gasket 6, and then lock them with the locking nut 7, and at the same time, fix the clamp seat 16 corresponding to each processing wheel 5 on the standard connecting block 15 of the corresponding height, and then when switching the bending of heat exchange tubes of different diameters, first start the hydraulic rod 11 to push the fixing frame 13 to the maximum extension position, and then the personnel first insert the heat exchange tube into the annular semicircular groove 8 of the corresponding processing wheel 5, and then rotate the screw rod 4 of the corresponding clamp seat 16 until the clamp seat 16 and the processing wheel 5 are combined and the heat exchange tube is clamped, so that the switching adjustment of different heat exchange tubes can be completed, and then the subsequent personnel only need to put the heat exchange tube between the corresponding processing wheel 5 and the clamp seat 1, and then bend it. In this way, when switching production and processing, it is not necessary to spend a lot of time to continuously disassemble and replace the processing wheel 5 and the clamp seat 16, so as to avoid delaying the processing and production and improve the processing efficiency of the heat exchange tube.

[0023] It should be noted that the processing wheels 5 with different diameters or the same diameter have the same thickness, and the thickness of the clamping seat 16 is the same as the thickness of the processing wheel.

[0024] refer to Figure 4 As shown, a through hole 18 is provided at the center of the processing wheel 5, and a screw rod 4 passes through the through hole 18. Two opposite positioning grooves 19 are provided on the outer wall of the screw rod 4, and two opposite positioning blocks 20 are provided on the inner wall of the through hole 18. The positioning blocks 20 are inserted into the positioning grooves 19. In this structure, the processing wheel 5 is sleeved on the screw rod 4 through the through hole 18, and then the positioning grooves 19 and the positioning blocks 20 are used to limit the position of the processing wheel 5 to prevent the processing wheel 5 from rotating on the screw rod 4.

[0025] refer to Figure 2 As shown, guide rods 21 are fixedly connected to both sides of the standard connection block 15, and the guide rods 21 are slidably connected to the fixed frame 13. This structure uses the guide rods 21 to guide the movement of the standard transfer connection block 15.

[0026] refer to Figure 1 , Figure 2 and Figure 3As shown, a mounting frame 22 is fixedly connected to the base frame 1, a screw rod 3 23 is rotatably connected to the mounting frame 22, a lifting frame 24 is threadedly connected to the screw rod 3 23, a screw rod 4 25 is threadedly connected to the lifting frame 24, one end of the screw rod 4 25 is rotatably connected to a moving frame 26, and a plurality of V-shaped guide wheels 27 are rotatably connected to the moving frame 26. This structure uses the V-shaped guide wheels 27 to limit the position of the heat exchange tubes to avoid the heat exchange tubes from being displaced when bent. At the same time, this structure can drive the lifting frame 24 to move up and down by rotating the screw rod 3 23, so as to adjust the height of the V-shaped guide wheel 27 to adapt to processing wheels 5 of different heights, and can drive the V-shaped guide wheel 27 to move left and right by rotating the screw rod 25, so that the V-shaped guide wheel 27 can adapt to processing guide wheels 5 of different diameters for positioning processing.

[0027] refer to Figure 3 As shown, a guide rod 28 is slidably connected to one side of the lifting frame 24 , and the guide rod 28 is fixedly mounted on the mounting frame 22 . This structure uses the guide rod 28 to guide the up and down movement of the lifting frame 24 .

[0028] refer to Figure 3 As shown, guide rods 3 29 are fixedly connected to both sides of the moving frame 26 , and the guide rods 3 29 are slidably connected to the lifting frame 24 . This structure uses the guide rods 3 29 to guide the movement of the moving frame 26 .

[0029] The implementation principle of a heat exchanger bending mechanism of an embodiment of the present application is as follows: when switching to bend heat exchange tubes of different diameters, first start the hydraulic rod 11 to push the fixing frame 13 to the maximum extension position, and then the personnel first clamp the heat exchange tube into the annular semicircular groove 8 of the corresponding processing wheel 5, and then rotate the screw 4 of the corresponding clamping seat 16 until the clamping seat 16 merges with the processing wheel 5 and clamps the heat exchange tube, thereby completing the switching adjustment of different heat exchange tubes, and then the subsequent personnel only need to put the heat exchange tube between the corresponding processing wheel 5 and the clamping seat 1, start the hydraulic rod 11 to push the fixing frame 13, and the fixing frame 13 moves on the slide rail 10 through the slide seat 12, so that the clamping seat 16 on the fixing frame 13 merges with the processing wheel 5, thereby clamping the heat exchange tube to be bent, and then start the motor 3 to drive the rotating seat 2 to rotate, and then drive the processing wheel and the clamping seat 16 to rotate at the same time, thereby performing a U-shaped bend on the heat exchange tube.

[0030] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A heat exchanger bending mechanism, comprising a base frame (1), characterized in that: A rotating seat (2) is rotatably connected to the base frame (1), a motor (3) is fixedly connected to the base frame (1), the motor (3) is connected to the rotating seat (2) via an output shaft, a screw rod (4) is fixedly connected to the top of the rotating seat (2), a plurality of processing wheels (5) of different or same diameters are sleeved on the screw rod (4), a gasket (6) is arranged between two adjacent processing wheels (5), the gasket (6) is sleeved on the screw rod (4), a locking nut (7) is threadedly connected to the upper part of the screw rod (4), an annular semicircular groove (8) of different or same diameters is provided on the outer wall of each processing wheel (5), the rotating seat (2) A support plate (9) is fixedly connected to the support plate (9), two slide rails (10) and a hydraulic rod (11) are fixedly connected to the support plate (9), a slide seat (12) is slidably connected to the slide rail (10), a fixed frame (13) is fixedly installed on the slide seat (12), a piston rod of the hydraulic rod (11) is fixedly connected to the fixed frame (13), the fixed frame (13) is threadedly connected with a second screw rod (14) at equal intervals from top to bottom, one end of the second screw rod (14) is rotatably connected with a standard connection block (15), a clamping seat (16) is detachably installed on the standard connection block (15), and a semicircular clamping groove (17) of different or same diameter is clamped on the clamping seat (16).

2. A heat exchanger bending mechanism according to claim 1, characterized in that: A through hole (18) is provided at the center of the processing wheel (5), the screw rod (4) passes through the through hole (18), two opposite positioning grooves (19) are provided on the outer wall of the screw rod (4), and two opposite positioning blocks (20) are provided on the inner wall of the through hole (18), and the positioning blocks (20) are inserted into the positioning grooves (19).

3. A heat exchanger bending mechanism according to claim 1, characterized in that: Guide rods 1 (21) are fixedly connected to both sides of the standard connection block (15), and the guide rods 1 (21) are slidably connected to the fixing frame (13).

4. A heat exchanger bending mechanism according to claim 1, characterized in that: The base frame (1) is fixedly connected to a mounting frame (22), the mounting frame (22) is rotatably connected to a screw rod three (23), the screw rod three (23) is threadedly connected to a lifting frame (24), the lifting frame (24) is threadedly connected to a screw rod four (25), one end of the screw rod four (25) is rotatably connected to a moving frame (26), and the moving frame (26) is rotatably connected to a plurality of V-shaped guide wheels (27).

5. A heat exchanger bending mechanism according to claim 4, characterized in that: One side of the lifting frame (24) is slidably connected to a second guide rod (28), and the second guide rod (28) is fixedly mounted on the mounting frame (22).

6. A heat exchanger bending mechanism according to claim 4, characterized in that: Guide rods 3 (29) are fixedly connected to both sides of the movable frame (26), and the guide rods 3 (29) are slidably connected to the lifting frame (24).

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