Pipe winding disc tensioning wheel mechanism capable of keeping tensioning state

Abstract

A pipe winding disc tensioning wheel mechanism capable of keeping a tensioning state comprises a stand column, cantilever beams are symmetrically installed above the stand column, the central axis of each cantilever beam is perpendicular to the central axis of the stand column, and pipe winding discs are installed on the two sides of each cantilever beam respectively. The installation structure of each pipe winding disc comprises a right-angle fixing piece fixed to the side portion of the cantilever beam and an inner cylinder fixing disc fixed in the pipe winding disc, a brake disc is installed on the outer side of the inner cylinder fixing disc through a rotating shaft, a pneumatic brake is installed at the bottom of the brake disc in a matched mode, and the rotating shaft is supported by a set of spaced bearing seats. A swing seat is fixed to the bottom of the bearing seat, an adjusting pull rod is installed between the swing seat and the right-angle fixing piece, and a tension detection sensor is installed on the adjusting pull rod, so that reliable output of a whole disc of round pipes is conveniently completed, tension can be fed back in time, tensioning of the round pipes is guaranteed, the working stability is greatly improved, and the pipe winding quality is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of tensioning mechanism technology, and in particular to a coiled disc tensioning wheel mechanism capable of maintaining a tensioned state. Background Technology

[0002] Spiral tube heat exchangers have unparalleled advantages over ordinary shell and tube heat exchangers. They are applicable to a wide temperature range, adaptable to thermal shock, self-relief of thermal stress, and have high compactness. Due to their special structure, the flow field is fully developed and there are no dead zones. In particular, by setting up multiple tubes (single shell), multiple fluids can be exchanged simultaneously in one device.

[0003] Spiral coil heat exchangers are highly efficient and compact heat exchangers that not only utilize waste heat but also play a vital role in energy conservation and environmental protection. However, their complex structure, high cost, and location within a critical part of the equipment make them problematic.

[0004] A spiral heat exchanger is made by alternately winding heat transfer tubes in a spiral shape in the space between the core and the outer cylinder. The spiral directions of adjacent spiral heat transfer tubes are opposite, and a spacer of a certain shape is used to maintain a certain distance between them.

[0005] Spiral coiled tubes can be wound as a single strand or as two or more strands welded together and then wound together. A medium can pass through the tube, which is called a single-channel spiral coiled tube heat exchanger.

[0006] One of the most important processes in manufacturing a wound tube heat exchanger is the tube winding process, typically using a circular tube. The circular tube is first wound onto a winding disc, and the tube output from the disc is part of the winding process for the wound heat exchanger. Current technology uses a common disc structure for the winding disc, which is pulled out by its own rotation and external tension or traction force. Due to the special structure of the circular tube and the manufacturing requirements of wound tube heat exchangers, the circular tube needs to be straightened and given a certain tension during operation to ensure reliable output. Current common discs cannot meet the requirements, and relying on manual testing of the tension poses a significant safety hazard in practical applications. Summary of the Invention

[0007] In response to the shortcomings of the existing production technology, the applicant provides a winding disc tensioning wheel mechanism that can maintain a tensioned state, thereby greatly improving the reliability of round pipe conveying. According to the actual application, it can automatically tension the winding disc to meet the usage requirements and ensure the quality of the winding.

[0008] The technical solution adopted in this invention is as follows:

[0009] A tensioning wheel mechanism for a coiled tube disc capable of maintaining tension includes a column, a cantilever beam symmetrically mounted above the column, the central axis of the cantilever beam being perpendicular to the central axis of the column, and coiled tube discs mounted on both sides of the cantilever beam.

[0010] The installation structure of a single winding disc is as follows: it includes a right-angle fixing plate fixed to the side of the cantilever beam, and an inner cylinder fixing plate fixed inside the winding disc. A brake disc is installed on the outer side of the inner cylinder fixing plate via a rotating shaft. A pneumatic brake is installed at the bottom of the brake disc. The rotating shaft is supported by a set of spaced bearing seats. A swing seat is fixed at the bottom of the bearing seats. An adjusting rod is installed between the swing seat and the right-angle fixing plate. A tension detection sensor is installed on the adjusting rod.

[0011] Its further technical solution lies in:

[0012] The end of the swing seat is provided with a fixed seat, which is locked to the side of the cantilever beam by fasteners. The fixed seat and the right-angle fixing plate are distributed at intervals.

[0013] The specific structure of a single winding disc is as follows: it includes a winding disc body and a winding disc left side plate. The winding disc body is composed of a thin-walled inner cylinder and a winding disc right side plate. The winding disc left side plate is installed on the left end face of the winding disc body, and the winding disc right side plate and the winding disc left side plate correspond to each other. The thin-walled inner cylinder is provided with a fixing block for installing the inner cylinder fixing disc. Multiple support frames are evenly installed on the circumference of the thin-walled inner cylinder, and wool felt sheets are installed on the outer surface of the support frames.

[0014] The thin-walled inner cylinder is a thin-walled cylindrical structure with one end open.

[0015] Multiple positioning plates are provided at the open end of the thin-walled inner cylinder.

[0016] Multiple circular holes are evenly spaced on the circumference of the thin-walled inner cylinder. Small oblong holes are symmetrically opened on both sides of each circular hole, and a support frame is inserted into the small oblong holes. Multiple connecting plates are evenly spaced on the inner wall of the thin-walled inner cylinder, and the inner positioning plate is locked to the support frame.

[0017] The bottom of the support frame is equipped with symmetrical connecting plates, each with a large elongated hole, and the connecting plates are locked to the inner positioning plate.

[0018] The support frame is a thin, arc-shaped plate that fits against the outer surface of the thin-walled inner cylinder.

[0019] The column is equipped with a lifting mechanism that drives the cantilever beam to slide up and down.

[0020] The lifting mechanism has the following structure: a motor and a reducer are installed on the top surface of the column via a support plate. The output end of the reducer is connected to a lead screw, and a lead screw nut is fitted on the lead screw. The lead screw nut is fixed to the cantilever beam.

[0021] The beneficial effects of this invention are as follows:

[0022] This invention features a compact and reasonable structure, and is easy to operate. The unique design of the winding disc, along with the coordinated operation of components such as the tension detection sensor, pneumatic brake, and brake disc, allows for reliable output of the entire circular tube and timely feedback of tension, ensuring the tension of the circular tube. This greatly improves working stability and guarantees the quality of the winding. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention.

[0024] Figure 2 This is a structural schematic diagram from another perspective of the present invention.

[0025] Figure 3 for Figure 2 A magnified view of part A in the middle.

[0026] Figure 4 This is a schematic diagram of the structure of a single winding disc of the present invention.

[0027] Figure 5 This is a schematic diagram of the structure of a single winding disk of the present invention from another perspective.

[0028] Figure 6 for Figure 5 Exploded view.

[0029] Figure 7 This is a schematic diagram of the structure of a single winding disc body of the present invention.

[0030] Figure 8 This is a schematic diagram of the inner cylinder of the present invention.

[0031] Figure 9 This is a schematic diagram of the support frame of the present invention.

[0032] Figure 10 This invention relates to an inverse proportional function relationship diagram.

[0033] The components are: 1. Winding disc; 2. Cantilever beam; 3. Column; 4. Right-angle fixing plate; 5. Tension sensor; 6. Adjusting rod; 7. Rotating shaft; 8. Bearing seat; 9. Left side plate of the winding disc; 10. Wool felt sheet; 11. Support frame; 12. Thin-walled inner cylinder; 13. Swing seat; 14. Fixed seat; 15. Brake disc; 16. Inner cylinder fixing disc; 17. Pneumatic brake; 18. Winding disc body; 19. Right side plate of the winding disc; 20. Fixing block; 21. Positioning plate;

[0034] 1101. Connecting plate; 1102. Large oblong hole;

[0035] 1201, Inner positioning plate; 1202, Small oblong hole; 1203, Circular hole. Detailed Implementation

[0036] The specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0037] like Figures 1-10 As shown, the tensioning wheel mechanism with feedback function in this embodiment includes a column 3, a cantilever beam 2 symmetrically installed above the column 3, the central axis of the cantilever beam 2 being perpendicular to the central axis of the column 3, and a winding disc 1 installed on both sides of the cantilever beam 2.

[0038] The installation structure of a single winding disc 1 includes a right-angle fixing plate 4 fixed to the side of the cantilever beam 2, and an inner cylinder fixing plate 16 fixed inside the winding disc 1. A brake disc 15 is installed on the outer side of the inner cylinder fixing plate 16 via a rotating shaft 7. A pneumatic brake 17 is installed at the bottom of the brake disc 15. The rotating shaft 7 is supported by a set of spaced bearing seats 8. A swing seat 13 is fixed at the bottom of the bearing seats 8. An adjusting rod 6 is installed between the swing seat 13 and the right-angle fixing plate 4. A tension detection sensor 5 is installed on the adjusting rod 6.

[0039] The end of the swing seat 13 is provided with a fixed seat 14, which is locked to the side of the cantilever beam 2 by fasteners. The fixed seat 14 and the right-angle fixing piece 4 are distributed at intervals.

[0040] The specific structure of a single winding disc 1 is as follows: it includes a winding disc body 18 and a winding disc left side plate 9. The winding disc body 18 is composed of a thin-walled inner cylinder 12 and a winding disc right side plate 19. The winding disc left side plate 9 is installed on the left end face of the winding disc body 18, and the winding disc right side plate 19 and the winding disc left side plate 9 correspond to each other. The thin-walled inner cylinder 12 is provided with a fixing block 20 for installing the inner cylinder fixing disc 16. Multiple support frames 11 are evenly installed on the circumferential surface of the thin-walled inner cylinder 12, and wool felt sheets 10 are installed on the outer surface of the support frames 11.

[0041] The thin-walled inner cylinder 12 is a thin-walled cylindrical structure with one end open.

[0042] Multiple positioning pieces 21 are provided at the open end of the thin-walled inner cylinder 12.

[0043] Multiple circular holes 1203 are evenly spaced on the circumferential surface of the thin-walled inner cylinder 12. Small elongated holes 1202 are symmetrically opened on both sides of each circular hole 1203. A support frame 11 is inserted into the small elongated holes 1202. Multiple connecting plates 1101 are evenly spaced on the inner wall of the thin-walled inner cylinder 12. The inner positioning plate 1201 is locked to the support frame 11.

[0044] The bottom of the support frame 11 is provided with symmetrical connecting plates 1101, and the connecting plates 1101 are provided with large elongated holes 1102. The connecting plates 1101 are locked with the inner positioning plate 1201.

[0045] The support frame 11 is a thin arc plate, and the support frame 11 is attached to the outer surface of the thin-walled inner cylinder 12.

[0046] A lifting mechanism is installed on column 3 to drive the cantilever beam 2 to slide up and down.

[0047] The lifting mechanism has the following structure: a motor and a reducer are installed on the top surface of the column 3 via a support plate. The output end of the reducer is connected to a lead screw, and a lead screw nut is fitted on the lead screw. The lead screw nut is fixed to the cantilever beam 2.

[0048] In actual engineering practice, this is accomplished through the following steps:

[0049] Step 1: Wind a complete roll of round tube onto the tube winding reel 1;

[0050] Step 2: The end of the round tube is output from the winding disc 1 and finally wound on the workpiece mandrel. During the process of the round tube being wound on the mandrel, it will generate a reverse pulling force on the winding disc 1. The tension detection sensor 5 detects the magnitude of the tension (usually the tension detection range is 0-2000N).

[0051] Step 3: Set the tension detected by the tension sensor 5 in Step 2 and the working pressure of the pneumatic brake 17 (working pressure range is 0-0.7MPa) to the following: Figure 10 The inverse proportional function relationship shown:

[0052] If the tension sensor (5) detects a tension of 1500N, the electronic control system will control the pneumatic brake 17 to operate at a pressure of 0.1MPa.

[0053] If the tension sensor 5 detects a tension of less than or equal to 500N, the electronic control system will control the pneumatic brake 17 to operate at a maximum pressure of 0.7MPa.

[0054] If the tension sensor 5 detects a tension exceeding 1500N, the electronic control system will control the pneumatic brake 17 to fully release.

[0055] This ensures that the tube is always under tension when it is output from the winding disc 1, and also avoids the risk of the winding disc 1 tipping over due to excessive reverse tension generated during the process of the tube being wound around the workpiece mandrel, thus ensuring a safety factor.

[0056] By following the steps above, it is possible to conveniently output the round tube while simultaneously providing real-time feedback on the working pressure and controlling the operation of the pneumatic brake 17, ensuring smooth output of the round tube and maintaining it in a taut state throughout the output process to meet usage requirements.

[0057] The above description is an explanation of the present invention and not a limitation thereof. The scope of the present invention is defined by the claims. Within the scope of protection of the present invention, any form of modification may be made.

Claims

1. A tensioning wheel mechanism for a coiled tube disc capable of maintaining a taut state, characterized in that: Includes a column (3), and a cantilever beam (2) is symmetrically installed above the column (3). The central axis of the cantilever beam (2) is perpendicular to the central axis of the column (3). A pipe-winding disc (1) is installed on both sides of the cantilever beam (2). The installation structure of a single winding disc (1) includes a right-angle fixing plate (4) fixed on the side of the cantilever beam (2) and an inner cylinder fixing plate (16) fixed inside the winding disc (1). A brake disc (15) is installed on the outer side of the inner cylinder fixing plate (16) via a rotating shaft (7). A pneumatic brake (17) is installed at the bottom of the brake disc (15). The rotating shaft (7) is supported by a set of spaced bearing seats (8). A swing seat (13) is fixed at the bottom of the bearing seat (8). An adjusting rod (6) is installed between the swing seat (13) and the right-angle fixing plate (4). A tension detection sensor (5) is installed on the adjusting rod (6).

2. The winding disc tensioning wheel mechanism capable of maintaining a tensioned state as described in claim 1, characterized in that: The end of the swing seat (13) is provided with a fixed seat (14), which is locked to the side of the cantilever beam (2) by fasteners. The fixed seat (14) and the right-angle fixing plate (4) are distributed at intervals.

3. The winding disc tensioning wheel mechanism capable of maintaining a tensioned state as described in claim 1, characterized in that: The specific structure of a single winding disc (1) is as follows: it includes a winding disc body (18) and a winding disc left side plate (9). The winding disc body (18) is composed of a thin-walled inner cylinder (12) and a winding disc right side plate (19). The left end face of the winding disc body (18) is equipped with the winding disc left side plate (9), and the winding disc right side plate (19) and the winding disc left side plate (9) correspond to each other. The thin-walled inner cylinder (12) is provided with a fixing block (20) for installing the inner cylinder fixing disc (16). Multiple support frames (11) are evenly installed on the circumferential surface of the thin-walled inner cylinder (12), and wool felt sheets (10) are installed on the outer surface of the support frames (11).

4. The winding disc tensioning wheel mechanism capable of maintaining a tensioned state as described in claim 3, characterized in that: The thin-walled inner cylinder (12) is a thin-walled cylindrical structure with one end open.

5. The winding disc tensioning wheel mechanism capable of maintaining a tensioned state as described in claim 4, characterized in that: Multiple positioning plates (21) are provided at the open end of the thin-walled inner cylinder (12).

6. The winding disc tensioning wheel mechanism capable of maintaining a tensioned state as described in claim 3, characterized in that: The thin-walled inner cylinder (12) has a plurality of circular holes (1203) evenly spaced on its circumferential surface. Small elongated holes (1202) are symmetrically opened on both sides of each circular hole (1203). A support frame (11) is inserted into the small elongated holes (1202). A plurality of connecting plates (1101) are evenly spaced on the inner wall of the thin-walled inner cylinder (12). The inner positioning plate (1201) is locked to the support frame (11).

7. A coiled disc tensioning wheel mechanism capable of maintaining a tensioned state as described in claim 6, characterized in that: The bottom of the support frame (11) is provided with symmetrical connecting plates (1101), and the connecting plates (1101) are provided with large elongated holes (1102). The connecting plates (1101) are locked with the inner positioning plate (1201).

8. A coiled disc tensioning wheel mechanism capable of maintaining a tensioned state as described in claim 6, characterized in that: The support frame (11) is an arc-shaped thin plate, and the support frame (11) is attached to the outer surface of the thin-walled inner cylinder (12).

9. A coiled disc tensioning wheel mechanism capable of maintaining a tensioned state as described in claim 1, characterized in that: A lifting mechanism is installed on the column (3) to drive the cantilever beam (2) to slide up and down.

10. A coiled disc tensioning wheel mechanism capable of maintaining a tensioned state as described in claim 8, characterized in that: The structure of the lifting mechanism is as follows: a motor and a reducer are installed on the top surface of the column (3) through a support plate. The output end of the reducer is connected to a lead screw, and a lead screw nut is sleeved on the lead screw. The lead screw nut is fixed to the cantilever beam (2).

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