Tube penetrating device for tubular condenser

Abstract

The utility model relates to the technical field of radiator assembling equipment, and discloses a tube penetrating device for a tubular condenser, which comprises a guide head, and a clamping mechanism is arranged at the plane end of the guide head. According to the tube penetrating device for the tubular condenser, the clamping mechanism is arranged and matched with the unique design of the clamping mechanism, the efficient and reliable heat dissipation tube clamping function is achieved, one end of a clamping cylinder is connected with a guide head, and a movable rod and a telescopic spring are arranged in a mounting groove formed in the other end of the clamping cylinder; the telescopic rods, the compression springs and the clamping blocks are arranged in the connecting blocks connected with the movable rods and the square grooves of the connecting blocks, and the ends of the multiple sets of clamping blocks distributed in a mirror symmetry mode are designed in an arc face mode and covered with silica gel pads. The clamping mechanism can adaptively compensate for the size deviation of different pipe diameters and the radiating pipes with different pipe wall thicknesses, uniform and flexible clamping force is provided, the risk that the radiating pipes slip during pipe penetrating is reduced, and the operation efficiency and safety are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of radiator assembly equipment, specifically a tube-insertion device for a shell-and-tube condenser. Background Technology

[0002] In existing technologies, industrial radiators primarily achieve heat exchange through a large number of heat exchange tubes. During the manufacturing process, tube installation is a crucial step that consumes the most time and significantly impacts efficiency. Current methods involve partially narrowing the head of the heat exchange tube to create a tapered surface. For core assemblies reaching 8 meters in length, this installation process requires three people working long hours and expending considerable physical effort to complete.

[0003] According to a publicly disclosed heat exchanger tube threading device (Announcement No.: CN213672702U), the aforementioned application describes a device with a simple structure and low cost, enabling convenient and quick heat exchanger tube threading. It effectively overcomes the problems of requiring multiple personnel, high labor intensity, and easy damage to the fins. Therefore, it eliminates the need for multiple people to perform the threading operation, saving labor, improving efficiency, and reducing labor intensity. The threading process effectively protects the fin quality, achieving a 100% fin qualification rate, meeting the heat exchanger production requirements.

[0004] However, in actual use, the above-mentioned equipment cannot be matched with the various models of condenser heat dissipation tubes on the market. Due to the large market size, the specifications of the condenser heat dissipation tubes are also different, with different wall thicknesses and pipe sizes, which the equipment cannot fully adapt to. In view of this, we propose a tube-insertion device for shell-and-tube condensers. Utility Model Content

[0005] The purpose of this invention is to provide a tube-insertion device for a shell-and-tube condenser to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A tube-insertion device for a shell-and-tube condenser includes a guide head, and a clamping mechanism is provided at the flat end of the guide head. The clamping mechanism includes:

[0007] A clamping cylinder, one end of which is fixedly connected to the flat end of the guide head, and the other end of the clamping cylinder away from the guide head is provided with an installation groove. A movable rod is fixedly connected to the end of the installation groove away from the outer wall of the clamping cylinder. A telescopic spring is sleeved on the outer surface of the movable rod. A connecting block is fixedly connected to the end of the movable rod close to the outer wall of the clamping cylinder.

[0008] A square groove is formed at the end of the connecting block away from the guide head. A telescopic rod is fixedly connected to the end of the square groove. A compression spring is sleeved on the outer surface of the telescopic rod. A clamping block is fixedly connected to the side of the telescopic rod away from the end of the square groove. A first sliding plate is slidably connected to the side wall of the mounting groove. A second sliding plate is slidably connected to the side wall of the square groove.

[0009] Preferably, a positioning mechanism is provided at the end of the clamping cylinder away from the guide head, and a positioning cylinder is threadedly connected to the end of the clamping cylinder away from the guide head. A positioning groove is provided on the inner wall of the positioning cylinder, and a fixed shaft is fixedly connected to the side wall of the positioning groove. One end of a spiral spring is fixedly connected to the outer surface of the fixed shaft, and a rotating cylinder is fixedly connected to the other end of the spiral spring.

[0010] Preferably, a guide rod is fixedly connected to the outer surface of the rotating drum, and a guide groove is provided at the end of the guide rod away from the spiral spring. A roller is rotatably connected to the side wall of the guide groove.

[0011] Preferably, the clamping blocks are provided in multiple sets, with each pair of clamping blocks distributed in a mirror-symmetrical manner on the side of the telescopic rod away from the end of the square groove. The side of the clamping block near the outer wall of the clamping cylinder away from the outer wall of the clamping cylinder is set as an arc surface, and the side of the clamping block away from the outer wall of the clamping cylinder near the outer wall of the clamping cylinder is set as an arc surface.

[0012] Preferably, the connecting block is L-shaped, and the diameter of the positioning cylinder is larger than the diameter of the clamping cylinder.

[0013] Preferably, a rubber ring is fixedly connected to the outer surface of the roller, and a silicone pad is fixedly connected to the side of the clamping block away from the end of the square groove.

[0014] Preferably, the number of positioning grooves, fixed shafts, spiral springs, and guide rods is provided in multiple sets, and the multiple sets of positioning grooves, fixed shafts, spiral springs, and guide rods are distributed in a circumferential array on the inner surface of the positioning cylinder.

[0015] Compared with the prior art, this utility model provides a tube-passing device for a shell-and-tube condenser, which has the following advantages:

[0016] 1. This tube-insertion device for a shell-and-tube condenser features a clamping mechanism with a unique design that enables efficient and reliable tube clamping. One end of the clamping cylinder is connected to a guide head, while the other end has an installation groove containing a movable rod and a telescopic spring. The connecting block that connects to the movable rod and its square groove contain a telescopic rod, a compression spring, and clamping blocks. Multiple sets of mirror-symmetrically distributed clamping blocks have curved ends covered with silicone pads. Combined with the dual elasticity of the telescopic and compression springs, the clamping mechanism can adaptively compensate for dimensional deviations in different tube diameters and wall thicknesses of heat dissipation tubes, providing uniform and flexible clamping force. This significantly reduces the risk of heat dissipation tube slippage during insertion, improving operational efficiency and safety.

[0017] 2. The tube-insertion device for this shell-and-tube condenser features a positioning mechanism that achieves precise heat dissipation tube guidance through a positioning cylinder threaded to the far end of the clamping cylinder and multiple circumferentially arrayed components on its inner wall. The positioning cylinder contains a positioning groove housing a fixed shaft, a spiral spring, a rotating cylinder, and a guide rod. A roller with a rubber ring is installed in the guide groove at the end of the guide rod. The spiral spring drives the guide rod, enabling the roller to automatically adjust its angle and absorb impact force using its elasticity. This provides dynamic support and correction when the heat dissipation tubes are inserted into the condenser tube sheet holes, effectively reducing tube wall friction and hole misalignment, thereby significantly improving the installation accuracy and smoothness of the tube insertion process. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0019] Figure 2 This is one of the schematic diagrams of the clamping mechanism of this utility model;

[0020] Figure 3 This is the second schematic diagram of the clamping mechanism of this utility model;

[0021] Figure 4 This is a schematic diagram of the structural positioning mechanism of this utility model.

[0022] In the diagram: 1. Guide head; 2. Clamping mechanism; 21. Clamping cylinder; 22. Mounting slot; 23. Movable rod; 24. Telescopic spring; 25. Connecting block; 26. Square slot; 27. Compression spring; 28. Telescopic rod; 29. ​​Clamping block; 210. First sliding plate; 211. Second sliding plate; 3. Positioning mechanism; 31. Positioning cylinder; 32. Positioning slot; 33. Fixed shaft; 34. Scroll spring; 35. Rotary cylinder; 36. Guide rod; 37. Guide slot; 38. Roller. Detailed Implementation

[0023] like Figures 1-4As shown, this utility model provides a technical solution: a tube-insertion device for a shell-and-tube condenser, including a guide head 1, and a clamping mechanism 2 is provided on the flat end of the guide head 1. The clamping mechanism 2 includes: a clamping cylinder 21, a mounting groove 22, a movable rod 23, a telescopic spring 24, a connecting block 25, a square groove 26, a compression spring 27, a telescopic rod 28, a clamping block 29, a first sliding plate 210, and a second sliding plate 211.

[0024] In one embodiment of this utility model, one end of the clamping cylinder 21 is fixedly connected to the planar end of the guide head 1. The other end of the clamping cylinder 21, away from the guide head 1, has a mounting groove 22. A movable rod 23 is fixedly connected to the end of the mounting groove 22 away from the outer wall of the clamping cylinder 21. A telescopic spring 24 is sleeved on the outer surface of the movable rod 23. A connecting block 25 is fixedly connected to the end of the movable rod 23 near the outer wall of the clamping cylinder 21. A square groove 26 is formed at the end of the connecting block 25 away from the guide head 1. The end of the square groove 26 is fixed... A telescopic rod 28 is connected, and a compression spring 27 is sleeved on the outer surface of the telescopic rod 28. A clamping block 29 is fixedly connected to the side of the telescopic rod 28 away from the end of the square groove 26. A first sliding plate 210 is slidably connected to the side wall of the mounting groove 22, and a second sliding plate 211 is slidably connected to the side wall of the square groove 26. Multiple sets of clamping blocks 29 are provided, with each pair of clamping blocks 29 distributed in a mirror-symmetrical manner on the side of the telescopic rod 28 away from the end of the square groove 26. The clamping blocks 29 closer to the outer wall of the clamping cylinder 21 are further away from the clamping cylinder 21. One side of the outer wall is set as an arc surface, and the side of the clamping block 29 that is away from the outer wall of the clamping cylinder 21 and close to the outer wall of the clamping cylinder 21 is also set as an arc surface. By designing the clamping block 29 as an arc surface, the contact surface of the clamping block 29 can effectively clamp the heat dissipation pipe better with the inner and outer walls of the heat dissipation pipe. With the clamping mechanism 2 set, the heat dissipation pipe clamping function is realized with its unique design. One end of the clamping cylinder 21 is connected to the guide head 1, and the other end is provided with a movable rod 23 and a telescopic spring 24 in the mounting groove 22. The connecting block 25 connecting the movable rod 23 and its square groove 26 are provided with a telescopic rod 28, a compression spring 27 and a clamping block 29. The ends of the multiple sets of mirror-symmetrically distributed clamping blocks 29 are designed with arc surfaces and covered with silicone pads. Combined with the double elastic action of the telescopic spring 24 and the compression spring 27, the clamping mechanism 2 can adaptively compensate for the size deviation of heat dissipation pipes with different pipe diameters and different pipe wall thicknesses, providing uniform and flexible clamping force, significantly reducing the risk of heat dissipation pipe slippage during pipe insertion, and improving the efficiency and safety of operation.

[0025] Additionally, a positioning mechanism 3 is provided at the end of the clamping cylinder 21 away from the guide head 1. A positioning cylinder 31 is threadedly connected to the end of the clamping cylinder 21 away from the guide head 1. A positioning groove 32 is formed on the inner wall of the positioning cylinder 31. A fixed shaft 33 is fixedly connected to the side wall of the positioning groove 32. One end of a spiral spring 34 is fixedly connected to the outer surface of the fixed shaft 33. A rotating cylinder 35 is fixedly connected to the other end of the spiral spring 34. A guide rod 36 is fixedly connected to the outer surface of the rotating cylinder 35. A guide groove 37 is formed at the end of the guide rod 36 away from the spiral spring 34. A roller 38 is rotatably connected to the side wall of the guide groove 37. Multiple sets of positioning grooves 32, fixed shafts 33, spiral springs 34, and guide rods 36 are provided. 4. The guide rods 36 are arranged in a circumferential array on the inner surface of the positioning cylinder 31. The positioning mechanism 3 achieves precise heat dissipation pipe guidance by being threadedly connected to the positioning cylinder 31 at the far end of the clamping cylinder 21 and the multiple sets of circumferentially arrayed components on its inner wall. The positioning groove 32 opened in the positioning cylinder 31 contains a fixed shaft 33, a spiral spring 34, a rotating cylinder and guide rods 35. The guide groove 37 at the end of the guide rod 36 contains a roller 38 with a rubber ring. The spiral spring 34 drives the guide rod 36, so that the roller 38 can automatically adjust its angle and absorb impact force with elasticity. It provides dynamic support and correction when the heat dissipation pipe is inserted into the hole of the condenser tube sheet, effectively reducing tube wall friction and hole misalignment, thereby significantly improving the installation accuracy of the tube and the smoothness of the operation process.

[0026] In this embodiment of the invention, a rubber ring is fixedly connected to the outer surface of the roller 38, and a silicone pad is fixedly connected to the side of the clamping block 29 away from the end of the square groove 26. The connecting block 25 is L-shaped, and the diameter of the positioning cylinder 31 is larger than the diameter of the clamping cylinder 21. By setting the connecting block 25 to an L-shape, the stability of the connection can be guaranteed to the maximum extent in a limited space, ensuring the normal operation of the device. Furthermore, by fixing the rubber ring to the outer surface of the roller 38, some friction can be increased without affecting the heat dissipation pipe, thus achieving a better positioning effect. The silicone pad fixedly connected to the side of the clamping block 29 away from the end of the square groove 26 can increase the clamping effect on the pipe without damaging it.

[0027] In this invention, during use, the pipeline first enters the positioning cylinder 31 through the end of the positioning cylinder 31, and then contacts the roller 38 of the positioning mechanism 3. Under the action of the spiral spring 34, the guide rod 36 drives the roller 38 to adaptively adjust its position, guiding the pipeline to be centered. Then, the pipeline pushes against the arc surface of the clamping block 29 in the clamping mechanism 2, overcoming the resistance of the compression spring 27 and causing the telescopic rod 28 to retract. Multiple sets of mirror-symmetrical clamping blocks 29 clamp the pipe wall. At the same time, the silicone pad increases friction and protects the pipeline. The entire process achieves smooth and accurate pipeline insertion through the automatic centering of the positioning mechanism 3 and the elastic clamping and buffering of the clamping mechanism 2.

[0028] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A tube-in-tube condenser tube threading device comprising a pilot head (1), characterised in that: The guide head (1) is provided with a clamping mechanism (2) on its flat end, the clamping mechanism (2) comprising: A clamping cylinder (21) is fixedly connected at one end to the flat end of the guide head (1). The other end of the clamping cylinder (21) away from the guide head (1) is provided with an installation groove (22). A movable rod (23) is fixedly connected at the end of the installation groove (22) away from the outer wall of the clamping cylinder (21). A telescopic spring (24) is sleeved on the outer surface of the movable rod (23). A connecting block (25) is fixedly connected at the end of the movable rod (23) close to the outer wall of the clamping cylinder (21). A square groove (26) is formed at one end of the connecting block (25) away from the guide head (1). A telescopic rod (28) is fixedly connected to the end of the square groove (26). A compression spring (27) is sleeved on the outer surface of the telescopic rod (28). A clamping block (29) is fixedly connected to one side of the telescopic rod (28) away from the end of the square groove (26). A first sliding plate (210) is slidably connected to the side wall of the mounting groove (22). A second sliding plate (211) is slidably connected to the side wall of the square groove (26).

2. A tube-in-tube condenser tube running device according to claim 1, characterized in that: The clamping cylinder (21) is provided with a positioning mechanism (3) at one end away from the guide head (1). The clamping cylinder (21) is threadedly connected to a positioning cylinder (31) at the other end away from the guide head (1). The positioning cylinder (31) has a positioning groove (32) on its inner wall. A fixed shaft (33) is fixedly connected to the side wall of the positioning groove (32). One end of a spiral spring (34) is fixedly connected to the outer surface of the fixed shaft (33). The other end of the spiral spring (34) is fixedly connected to a rotating cylinder (35).

3. A tube-in-tube condenser tube running device according to claim 2, characterized in that: A guide rod (36) is fixedly connected to the outer surface of the rotating drum (35). A guide groove (37) is provided at the end of the guide rod (36) away from the spiral spring (34). A roller (38) is rotatably connected to the side wall of the guide groove (37).

4. A tube-in-tube condenser tube running device according to claim 1, characterized in that: The number of clamping blocks (29) is set in multiple sets. Each pair of clamping blocks (29) are distributed in a mirror symmetrical manner on the side of the telescopic rod (28) away from the end of the square groove (26). The side of the clamping block (29) close to the outer wall of the clamping cylinder (21) away from the outer wall of the clamping cylinder (21) is set as an arc surface, and the side of the clamping block (29) away from the outer wall of the clamping cylinder (21) close to the outer wall of the clamping cylinder (21) is set as an arc surface.

5. A tube-in-tube condenser tube running device according to claim 2, characterized in that: The connecting block (25) is L-shaped, and the diameter of the positioning cylinder (31) is greater than the diameter of the clamping cylinder (21).

6. A tube-in-tube condenser tube running device according to claim 3, characterized in that: A rubber ring is fixedly connected to the outer surface of the roller (38), and a silicone pad is fixedly connected to the side of the clamping block (29) away from the end of the square groove (26).

7. A tube-in-tube condenser tube running device according to claim 2, characterized in that: The number of positioning grooves (32), fixed shafts (33), spiral springs (34), and guide rods (36) is set in multiple sets, and the multiple sets of positioning grooves (32), fixed shafts (33), spiral springs (34), and guide rods (36) are distributed in a circumferential array on the inner surface of the positioning cylinder (31).

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