End necking device for spiral flat tube of compressor heat exchanger

Abstract

The utility model discloses an end part necking device for a spiral flat tube of a compressor heat exchanger, which relates to the technical field of compressor heat exchangers and comprises a support table, a necking device is arranged above the support table, a connecting block is arranged at one end of the necking device, an auxiliary tube is fixedly arranged at one end of the connecting block, and the other end of the connecting block is provided with a screw. Clamping grooves are formed in the two sides of the interior of one end of the necking device, movable grooves are formed in the two sides of each clamping groove, movable blocks are arranged in the two movable grooves, third springs are arranged on one sides of the movable blocks, clamping blocks are fixedly arranged on the two sides of one end of the connecting block, and the clamping blocks are clamped into the clamping grooves. Inserting grooves are formed in the two sides of the interior of the clamping block, and the movable blocks are inserted into the inserting grooves. According to the necking device convenient to move and capable of conveniently replacing the auxiliary pipe, the flexibility of the necking device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of compressor heat exchangers, in particular to an end necking device for a spiral flat tube of a compressor heat exchanger. Background Art

[0002] Shell and tube heat exchangers are widely used in the field of natural gas compressors. The shell and tube bundle form two mutually unconnected cavities. Two fluid media with different temperatures are introduced. The higher temperature fluid transfers heat to the lower temperature fluid through the tube wall, thereby achieving the purpose of heat exchange. In many production processes, the spiral flat tubes of the heat exchanger need to be necked to reduce the diameter of one end of the raw pipe material.

[0003] The shrinking device of the prior art is inconvenient to move due to its large size. At the same time, the flat tube must first be sleeved on the outside of the auxiliary tube for shrinking. Therefore, the existing device can only shrink pipes of one diameter and is not suitable for pipes of multiple diameters. It has certain limitations and is not flexible enough. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the utility model provides an end shrinking device for the spiral flat tube of the compressor heat exchanger, which solves the problem that the existing shrinking device is inconvenient to move due to its large size. At the same time, the flat tube must first be sleeved on the outside of the auxiliary tube for shrinking. The existing device can only shrink pipes of one diameter and is not suitable for pipes of multiple diameters. It has certain limitations and is not flexible enough.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an end necking device for a spiral flat tube of a compressor heat exchanger, comprising a support platform, a necking device is provided above the support platform, a connecting block is provided at one end of the necking device, an auxiliary tube is fixedly provided at one end of the connecting block, a clamping groove is provided on both sides of the interior of one end of the necking device, a movable groove is provided on both sides of the clamping groove, a movable block is provided inside the two movable grooves, a third spring is provided on one side of the movable block, a clamping block is fixedly provided on both sides of one end of the connecting block, the clamping block is clamped into the clamping groove, a slot is provided on both sides of the interior of the clamping block, and the movable block is inserted into the slot;

[0006] A fixing plate is provided inside the support platform, a motor is provided on one side above the fixing plate, a first rotating shaft is provided at one end of the motor, a driving gear is sleeved on the outside of the first rotating shaft, a driven gear is meshed and connected on one side of the driving gear, a second rotating shaft is connected through the middle of the driven gear, a screw rod is provided below the second rotating shaft, a threaded block is meshed and sleeved on the outside of the screw rod, connecting rods are fixedly provided on both sides of the threaded block, a connecting plate located below the support platform is fixed at one end of the two connecting rods, and universal wheels are provided on the four end feet of the lower end surface of the connecting plate.

[0007] Preferably, an auxiliary ring is provided inside the necking device, four end legs outside the auxiliary ring are provided with necking plates, and a first spring is provided between the necking plate and the auxiliary ring.

[0008] Preferably, a movable shaft is movably connected between the two movable blocks and the necking device.

[0009] Preferably, support blocks located above the support platform are provided on both sides of the necking device, and a control device is provided on one side of the necking device.

[0010] Preferably, the four end legs below the support platform are all fixedly provided with support legs, and the lower end surfaces of the four support legs are all provided with anti-slip pads.

[0011] Preferably, cabinet doors are provided on both sides of the front end surface of the support platform, and handles are provided on the front end surfaces of the two cabinet doors.

[0012] Preferably, the four end legs of the auxiliary ring are all fixedly provided with positioning blocks, and the four end faces inside the necking device are all provided with positioning grooves, and the positioning blocks are snapped into the positioning grooves.

[0013] Preferably, a support plate is provided below the fixing plate, the two connecting rods are connected through the support plate, and the second spring is sleeved on the outside of the two connecting rods.

[0014] Beneficial effects

[0015] The utility model provides a necking device. Compared with the prior art, it has the following beneficial effects:

[0016] 1. When replacing the auxiliary tube inside the necking device, first push the connecting block outward, so that it drives the clamping blocks on both sides of one end to be pulled outward, so that the movable block stuck in the slot slowly detaches from the slot, and then it is folded toward the inside of the movable slot through the movable axis. When the movable block detaches from the slot, the clamping block can be detached from the clamping slot. The connecting block then drives the auxiliary tube fixedly connected at one end to complete the disassembly. When replacing a new auxiliary tube, align the clamping block at one end of the connecting block with the clamping slot inside the necking device and clamp it in. At the same time, the movable blocks on both sides inside will be squeezed to one side. When the clamping block is completely stuck in the slot, the third spring is relaxed to make the movable block pop out and insert into the slot inside the clamping block to complete the fixation. This disassembly and assembly method is fast, convenient, flexible, and applicable to flat tubes of various diameters.

[0017] 2. The motor drives the first rotating shaft to rotate, causing the driving gear to rotate and drive the driven gear on one side to engage and rotate with it, so that the second rotating shaft connected inside it rotates and drives the screw rod below to start rotating. The threaded block outside the screw rod moves and drives one end of the connecting rod on both sides. Then the connecting plate below the two connecting rods, that is, the universal wheels of the four end feet below, move and contact the ground, so that it can be moved conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the necking device of the present invention;

[0019] Figure 2 For this utility model Figure 1 A schematic diagram of the structure at the enlarged position of part A;

[0020] Figure 3 This is a schematic diagram of the bottom structure of the necking device of the present invention;

[0021] Figure 4 This is a schematic diagram of the internal cross-sectional structure of the necking device of the present invention;

[0022] Figure 5 For the utility model Figure 4 A schematic diagram of the structure at part B is enlarged;

[0023] Figure 6 This is a schematic diagram of the cross-sectional structure of the auxiliary pipe connection of the present invention;

[0024] Figure 7 For this utility model Figure 6 Schematic diagram of the enlarged cross-section structure at local C.

[0025] In the figure: 1. Support platform; 2. Control device; 3. Support block; 4. Narrowing device; 5. Connecting block; 6. Positioning groove; 7. Positioning block; 8. Auxiliary ring; 9. First spring; 10. Narrowing plate; 11. Auxiliary tube; 12. Universal wheel; 13. Connecting plate; 14. Fixed plate; 15. Screw; 16. Threaded block; 17. Connecting rod; 18. Second spring; 19. Motor; 20. First rotating shaft; 21. Driving gear; 22. Second rotating shaft; 23. Driven gear; 24. Slot; 25. Block; 26. Movable block; 27. Third spring; 28. Movable shaft; 29. ​​Movable slot; 30. Slot. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-7 The utility model provides a technical solution: an end necking device for a spiral flat tube of a compressor heat exchanger, comprising a support platform 1, a necking device 4 is arranged above the support platform 1, a connecting block 5 is arranged at one end of the necking device 4, an auxiliary pipe 11 is fixedly arranged at one end of the connecting block 5, a clamping groove 24 is arranged on both sides of the interior of one end of the necking device 4, a movable groove 29 is arranged on both sides of the clamping groove 24, a movable block 26 is arranged inside the two movable grooves 29, a third spring 27 is arranged on one side of the movable block 26, an auxiliary ring 8 is arranged inside the necking device 4, and the four end feet outside the auxiliary ring 8 are provided with necking plates 10, and the necking device 4 is provided with an auxiliary ring 8. A first spring 9 is provided between the mouth plate 10 and the auxiliary ring 8, and a movable shaft 28 is movably connected between the two movable blocks 26 and the shrinking device 4. Support blocks 3 located above the support platform 1 are provided on both sides of the shrinking device 4. A control device 2 is provided on one side of the shrinking device 4. When replacing the auxiliary tube 11 inside the shrinking device 4, the connecting block 5 is first pushed outward, so that it drives the card blocks 25 on both sides of one end to be pulled outward together, so that the movable block 26 stuck in the slot 30 slowly disengages from the slot 30, and then it is folded toward the inside of the movable groove 29 through the movable shaft 28. When the movable block 26 disengages from the slot 30;

[0028] Both sides of one end of the connecting block 5 are fixedly provided with a card block 25, the card block 25 is inserted into the card slot 24, and both sides of the inside of the card block 25 are provided with a slot 30, and the movable block 26 is inserted into the slot 30; the interior of the support platform 1 is provided with a fixed plate 14, and a motor 19 is provided on one side above the fixed plate 14. One end of the motor 19 is provided with a first rotating shaft 20, and the outside of the first rotating shaft 20 is sleeved with a driving gear 21. The four end feet below the support platform 1 are fixedly provided with supporting feet, and the lower end surfaces of the four supporting feet are provided with anti-slip pads. Cabinet doors are provided on both sides of the front end surface of the support platform 1, and the front of the two cabinet doors is provided. The end faces are provided with handles, which can be used to detach the clamping block 25 from the clamping groove 24, so that the connecting block 5 can drive the auxiliary pipe 11 fixedly connected at one end to complete the disassembly. When replacing a new auxiliary pipe 11, the clamping block 25 at one end of the connecting block 5 is aligned with the clamping groove 24 inside the shrinking device 4 and clamped in. At the same time, the movable blocks 26 on both sides of the interior are squeezed to one side. After the clamping block 25 is completely clamped in the clamping groove 24, the third spring 27 is relaxed to make the movable block 26 pop out and insert into the slot 30 inside the clamping block 25 to complete the fixation. This disassembly and assembly method is fast, convenient and flexible.

[0029] One side of the driving gear 21 is meshed with the driven gear 23, and the middle of the driven gear 23 is connected with the second rotating shaft 22. A screw rod 15 is provided below the second rotating shaft 22, and the outside of the screw rod 15 is meshed with a threaded block 16. Connecting rods 17 are fixed on both sides of the threaded block 16. One end of the two connecting rods 17 is fixed with a connecting plate 13 located below the support platform 1. The four end feet of the lower end face of the connecting plate 13 are provided with universal wheels 12, and the four end feet of the auxiliary ring 8 are fixed with positioning blocks 7. The four end faces inside the necking device 4 are provided with positioning grooves 6, and the positioning blocks 7 are stuck in the positioning grooves 6. A support plate is provided below the fixed plate 14. The two connecting rods 17 are connected with the support plate, and the outside of the two connecting rods 17 is sleeved with a second spring 18, which can be applicable to flat tubes of various diameters. The motor 19 drives the first rotating shaft 20 to rotate, so that the driving gear 21 rotates and drives the driven gear 23 on one side to engage and rotate with it, so that the second rotating shaft 22 connected thereto rotates and drives the screw rod 15 below to start rotating. The threaded block 16 outside the screw rod 15 moves to drive one end of the connecting rod 17 on both sides. Then, the connecting plate 13 below the two connecting rods 17, that is, the universal wheels 12 of the four end feet below, move to contact the ground, so that it can be moved conveniently.

[0030] When the clamping block 25 is fully engaged in the slot 24, the third spring 27 is relaxed so that the movable block 26 pops out and is inserted into the slot 30 inside the clamping block 25 to complete the fixation. This disassembly and assembly method is fast and convenient, more flexible, and can be applied to flat tubes of various diameters. The motor 19 drives the first rotating shaft 20 to rotate, so that the driving gear 21 rotates and drives the driven gear 23 on one side to engage and rotate with it, so that the second rotating shaft 22 connected thereto rotates and drives the screw rod 15 below to start rotating. The threaded block 16 outside the screw rod 15 moves to drive one end of the connecting rod 17 on both sides. Then, the connecting plate 13 below the two connecting rods 17, that is, the universal wheels 12 of the four end feet below, move to contact the ground, so that it can be moved conveniently.

[0031] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. An end necking device for a spiral flat tube of a compressor heat exchanger, comprising a support platform (1), characterized in that: A shrinking device (4) is provided above the support platform (1), a connecting block (5) is provided at one end of the shrinking device (4), an auxiliary tube (11) is fixedly provided at one end of the connecting block (5), a clamping groove (24) is provided on both sides of the interior of one end of the shrinking device (4), a movable groove (29) is provided on both sides of the clamping groove (24), a movable block (26) is provided inside the two movable grooves (29), a third spring (27) is provided on one side of the movable block (26), a clamping block (25) is fixedly provided on both sides of one end of the connecting block (5), the clamping block (25) is clamped into the clamping groove (24), a slot (30) is provided on both sides of the interior of the clamping block (25), and the movable block (26) is inserted into the slot (30); A fixing plate (14) is provided inside the support platform (1), a motor (19) is provided on one side above the fixing plate (14), a first rotating shaft (20) is provided at one end of the motor (19), a driving gear (21) is sleeved on the outside of the first rotating shaft (20), a driven gear (23) is meshed and connected on one side of the driving gear (21), a second rotating shaft (22) is connected through the middle of the driven gear (23), a screw rod (15) is provided below the second rotating shaft (22), a threaded block (16) is meshed and sleeved on the outside of the screw rod (15), connecting rods (17) are fixedly provided on both sides of the threaded block (16), one end of the two connecting rods (17) is fixedly provided with a connecting plate (13) located below the support platform (1), and four end feet of the lower end surface of the connecting plate (13) are provided with universal wheels (12).

2. The end necking device for spiral flat tubes of a compressor heat exchanger according to claim 1, characterized in that: An auxiliary ring (8) is provided inside the shrinking device (4), four end legs outside the auxiliary ring (8) are each provided with a shrinking plate (10), and a first spring (9) is provided between the shrinking plate (10) and the auxiliary ring (8).

3. The end necking device for spiral flat tubes of a compressor heat exchanger according to claim 1, characterized in that: A movable shaft (28) is movably connected between the two movable blocks (26) and the necking device (4).

4. The end necking device for spiral flat tubes of a compressor heat exchanger according to claim 1, characterized in that: Support blocks (3) located above the support platform (1) are provided on both sides of the necking device (4), and a control device (2) is provided on one side of the necking device (4).

5. The end necking device for spiral flat tubes of a compressor heat exchanger according to claim 1, characterized in that: The four end legs below the support platform (1) are all fixedly provided with support legs, and the lower end surfaces of the four support legs are all provided with anti-slip pads.

6. The end necking device for spiral flat tubes of a compressor heat exchanger according to claim 1, characterized in that: Cabinet doors are provided on both sides of the front end surface of the support platform (1), and handles are provided on the front end surfaces of the two cabinet doors.

7. The end necking device for spiral flat tubes of a compressor heat exchanger according to claim 2, characterized in that: The four end legs of the auxiliary ring (8) are all fixedly provided with positioning blocks (7), and the four end faces inside the necking device (4) are all provided with positioning grooves (6), and the positioning blocks (7) are snapped into the positioning grooves (6).

8. The end necking device for spiral flat tubes of a compressor heat exchanger according to claim 1, characterized in that: A support plate is provided below the fixing plate (14), and the two connecting rods (17) are connected to the support plate through the connecting rods (17). The exteriors of the two connecting rods (17) are sleeved with second springs (18).

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