CN219017312U - Self-cooling holds in palm line deflector roll - Google Patents

Abstract

The utility model provides a self-cooling wire supporting guide roller which comprises a guide roller body (1) and a roller, wherein a heat dissipation cavity (2) is formed in the guide roller body in a hollow mode, roller supports (3) are arranged at two ends of the guide roller body, heat dissipation holes (4) are formed in the roller supports, the guide roller body is fixedly connected with the roller through the roller supports, an impeller (5) is arranged in the heat dissipation cavity in an axial mode, and the heat dissipation holes are communicated with the heat dissipation cavity. According to the utility model, the hollow structure is adopted to reduce the weight of the guide roller body, reduce the line friction resistance between the guide roller body and the surface of the enameled wire, and avoid damaging a paint film; air can be contained, and heat dissipation is facilitated; impeller in the heat dissipation chamber, along with the rotation of deflector roll body, produces air current axial motion, dispels the heat around from the louvre, reduces the temperature of deflector roll body, promotes the thermal diffusivity of deflector roll body, and the louvre structure on the roller bearing can reduce the area of contact of deflector roll body and roller bearing, reduces the heat conduction effect between deflector roll body and the roller bearing, avoids the overheated card of roller bearing to die.

Description

Self-cooling holds in palm line deflector roll

Technical Field

The utility model relates to the technical field of enameled wires, in particular to a self-cooling wire supporting guide roller.

Background

When the electromagnetic wire industry produces enameled wires, a layer of insulating paint is required to be uniformly coated on the outer surface of a processed copper wire (or aluminum wire). In the production process, the copper wire with the surface coated with the insulating paint needs to be dried to obtain the enameled wire, the temperature of the dried enameled wire is very high, and the enameled wire is transmitted to the next working procedure by a wire supporting guide roller made of aluminum alloy materials and fixed at the outlet of the baking furnace. In the transmission process, the rotation of the wire supporting guide roller is driven by friction force generated between the enameled wire and the periphery of the wire supporting guide roller.

The existing wire supporting guide roller adopts a solid structure, the dead weight is large, the end part of the wire supporting guide roller is provided with a roller, in the actual wire supporting transmission process, the wire friction resistance between the solid wire supporting guide roller enamelled wires is overlarge, the adhesive force of a paint film on the surface of the just dried enamelled wires is not large, the overlarge wire friction resistance can cause the reduction of the glossiness of the paint film on the surface of the enamelled wires, and even the falling of the paint film can be caused. In addition, because the outlet temperature of the baking furnace is about 500 ℃, the temperature of the enameled wire supported by the surface of the wire supporting guide roller is very high, the wire supporting guide roller and the roller are in direct contact for heat transfer, the roller is overhigh in temperature in the long-time conveying process, the phenomenon of blocking damage is easy to occur, the wire supporting conveying is interrupted, and the production efficiency is reduced.

The utility model discloses a wire supporting device of an enamelling machine, which is disclosed as CN214253981U, wherein a driving motor is connected to a wire supporting roller to drive the wire supporting roller to rotate, a cooling cavity with a cooling port is designed in the wire supporting roller, and a spray head is externally connected to the cooling port to spray cooling liquid into the cooling cavity, so that a cooling effect is realized. However, the utility model has complex structure and is limited to be applied to multi-head machines, each machine is provided with two rolling shafts, the production speed of each head is required to be consistent, the rotation speed of the wire supporting roller is much slower than the operation speed of the enameled wire, and the externally connected driving motor increases the production energy consumption of enterprises, thereby being not beneficial to energy conservation and emission reduction; the spray head is adopted to spray cooling liquid into the cooling cavity for cooling, the cooling liquid needs to be circulated by a water pump and is subjected to heat exchange treatment, the temperature of the cooling liquid also needs to be controlled, and the flue gas brought out of the baking oven by the enameled wire is easily condensed by the roller with too low temperature, so that paint nodules are formed, and the qualification rate of products is low.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, the present utility model is directed to a self-cooling wire supporting guide roller, which is used for solving the problems of poor heat dissipation performance, easy clamping of the roller, heavy weight, high friction resistance with the surface wire of the enameled wire and easy damage to the paint film of the existing wire supporting guide roller.

To achieve the above and other related objects, the present utility model is achieved by comprising the following technical solutions.

The utility model provides a self-cooling wire supporting guide roller which comprises a guide roller body and a roller, wherein a heat dissipation cavity is formed in the guide roller body in a hollow mode, roller supports are arranged at two ends of the guide roller body, heat dissipation holes are formed in the roller supports, the guide roller body is fixedly connected with the roller through the roller supports, an impeller is axially arranged in the heat dissipation cavity, and the heat dissipation holes are communicated with the heat dissipation cavity.

The two ends of the self-cooling wire supporting guide roller are respectively provided with the rollers, the self-cooling wire supporting guide roller is suitable for a high-speed enamelling machine, different roller speeds can be adjusted according to specific specifications, a split design of the guide roller body and the roller support with a hollow structure is adopted to replace a traditional solid guide roller structure, and the hollow structure can reduce the weight of the guide roller body, reduce the wire friction resistance between the guide roller body and the surface of an enamelled wire and avoid damaging a paint film on one hand; on the other hand, the air can be contained, so that heat dissipation is facilitated; the impeller in the heat dissipation cavity rotates along with the guide roller body to generate air flow to axially move, and the air flow dissipates heat from the heat dissipation holes on the roller support to the periphery, so that the temperature of the guide roller body is reduced, and the heat dissipation of the guide roller body is improved; the heat dissipation hole structure on the roller support can reduce the contact area of the guide roller body and the roller, reduce the heat conduction effect between the guide roller body and the roller, and when the guide roller body has higher temperature, the roller can still keep relatively lower temperature, so that the roller is prevented from being blocked due to overheating, and the service life is prolonged.

Preferably, the outer walls at the two ends of the guide roller body are outwards protruded to form a wire blocking ring, the wire blocking ring plays a limiting role in the wire supporting process, enameled wires are prevented from sliding off the guide roller body, and conveying stability is improved.

Preferably, the both ends inner wall of deflector roll body is equipped with the spacing groove, spacing groove and roller bearing support looks adaptation are convenient for spacing to the roller bearing support, prevent that it from sliding into the heat dissipation intracavity in the installation, improve assembly stability.

Preferably, the roller support is a hollow aluminum alloy annular cylinder, a roller mounting hole is formed in the center of the roller support, the roller is fixedly connected with the roller support through the roller mounting hole, and the roller support and the guide roller body are coaxially arranged, so that the transmission is more stable.

Preferably, the heat dissipation hole is a through hole which axially penetrates through the side wall of the roller support, so that the heat dissipation hole is communicated with the heat dissipation cavity, hot air flow generated by the impeller along with rotation of the guide roller body is discharged, and heat dissipation is improved.

Preferably, the number of the radiating holes is not less than two, and the radiating holes are axially symmetrically arranged, so that on one hand, the heat property of the radiating holes is improved, on the other hand, the weight of the radiating holes is reduced, and the line friction resistance between the guide roller body and the surface of the enameled wire is further reduced.

Preferably, the impeller comprises a rotating shaft, a fixed ring and a plurality of blades, one end of each blade is tangent to the rotating shaft, the other end of each blade is connected with the fixed ring, the fixed ring is fixedly connected with the inner wall of the guide roller body, and the fixing mode can be clamping fixing, threaded connection or welding.

Preferably, the impeller is arranged at the center of the guide roller body, so that one side of the impeller is an air inlet channel, and the other side of the impeller is an air outlet channel, and the heat dissipation of hot air flow is improved.

Preferably, the length of the guide roller body is 250-350 mm, and the diameter of the guide roller body is 50-70 mm.

Preferably, the outer surface of the guide roller body is provided with a ceramic coating, so that the high temperature resistance and strength of the guide roller body are improved.

As described above, the present utility model has the following advantageous effects: the split design of the guide roller body and the roller support with the hollow structure is adopted to replace the traditional solid guide roller structure, so that the hollow structure can reduce the weight of the guide roller body, reduce the linear friction resistance between the guide roller body and the surface of the enameled wire and avoid damaging a paint film on one hand; on the other hand, the air can be contained, so that heat dissipation is facilitated; impeller in the heat dissipation chamber, along with the rotation of deflector roll body, produces air current axial motion, and the air current carries the heat to dispel the heat around from the louvre on the roller bearing support, reduces the temperature of deflector roll body, promotes the thermal diffusivity of deflector roll body, and the louvre structure on the roller bearing support can reduce the area of contact of deflector roll body and roller bearing, reduces the heat conduction effect between deflector roll body and the roller bearing, and when the deflector roll body has higher temperature, the roller bearing still can keep relatively lower temperature, avoids the overheated card of taking place of roller bearing to die, improves life.

Drawings

Fig. 1 shows a schematic structure of a self-cooling wire guide roller.

Fig. 2 shows a left side view of fig. 1.

Fig. 3 shows a cross-sectional view of the guide roller body.

Fig. 4 shows a schematic structure of the roller support.

Fig. 5 shows a schematic structural view of the impeller.

Reference numerals illustrate: the roller comprises a guide roller body 1, a heat dissipation cavity 2, a roller support 3, a heat dissipation hole 4, an impeller 5, a wire blocking ring 6, a limit groove 7, a roller mounting hole 8, a rotating shaft 9, a fixing ring 10 and a blade 11.

Detailed Description

Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present utility model, which is described by the following specific examples.

Please refer to fig. 1 to 5. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the utility model to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the utility model, are not intended to be critical to the essential characteristics of the utility model, but are intended to fall within the spirit and scope of the utility model. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the utility model, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the utility model may be practiced.

As shown in fig. 1 and 2, the utility model provides a self-cooling supporting wire guide roller, which comprises a ceramic coating guide roller body 1 and a roller, wherein the outer surface of the guide roller body is coated with a ceramic coating, the roller adopts a 6802 deep groove ball bearing, the outer diameter of the shaft is 50mm, the length of the guide roller body is 300mm, and the diameter of the guide roller body is 55mm. The utility model discloses a roller bearing, including deflector roll body, limiting groove, locating cavity, the both ends of deflector roll body are equipped with roller bearing support 3, be equipped with louvre 4 on the roller bearing support, spacing groove and roller bearing support looks adaptation, the deflector roll body passes through roller bearing support and roller bearing fixed connection, be equipped with impeller 6 in the heat dissipation cavity, the center department of deflector roll body is located to the impeller, locate the deflector roll body the louvre is the through-hole that runs through for the axial and sets up on the roller bearing support lateral wall, the louvre is linked together with the heat dissipation cavity. As shown in fig. 3, a heat dissipation cavity 2 is formed in the guide roller body 1, wire blocking rings 5 are formed by outwards protruding outer walls at two ends of the guide roller body 1, limit grooves 6 are formed in inner walls at two ends of the guide roller body, and the limit grooves are matched with the roller supports. As shown in fig. 4, the roller support is a hollow aluminum alloy annular cylinder, roller mounting holes 8 are formed in the center, the number of the heat dissipation holes is 4 and are axially symmetrically arranged, the roller is fixedly connected with the roller support through the roller mounting holes, the roller support and the guide roller body are coaxially arranged, and the heat dissipation holes axially penetrate through holes formed in the side walls of the roller support. As shown in fig. 5, the impeller 5 comprises a rotating shaft 9, a fixed ring 10 and 8 blades 11, one ends of the blades are tangential to the rotating shaft, the other ends of the blades are connected with the fixed ring, and the fixed ring is fixedly connected with the inner wall of the guide roller body.

The working principle of the utility model is as follows:

as shown in fig. 1, the roller bracket 3 is fixedly arranged in the limit groove 7, and the roller is fixedly connected with the roller bracket through the roller mounting hole, so that the self-cooling supporting wire guide roller is assembled;

the copper line that the surface coating has insulating varnish obtains the enameled wire after oven high temperature stoving, the enameled wire is transmitted by the self-cooling wire bearing deflector roll of this application, frictional force drive deflector roll body 1 that produces between enameled wire and the deflector roll body 1 outer wall is rotatory, impeller 5 in the heat dissipation chamber 2 is along with the rotation of deflector roll body 1, produce air current axial motion, the air current carries heat to dispel the heat around from the louvre on the roller bearing support, reduce the temperature of deflector roll body, promote the thermal diffusivity of deflector roll body, effectively reduce the heat transfer of deflector roll body and roller bearing, avoid the overheated card of taking place of roller bearing to die, improve life.

The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims (10)

1. The utility model provides a self-cooling holds in palm line deflector roll, its characterized in that, including deflector roll body (1) and roller bearing, the inside cavity of deflector roll body is formed with heat dissipation chamber (2), the both ends of deflector roll body are equipped with roller bearing support (3), be equipped with louvre (4) on the roller bearing support, the deflector roll body passes through roller bearing support and roller bearing fixed connection, be equipped with impeller (5) in the heat dissipation chamber axle, the louvre is linked together with the heat dissipation chamber.

2. The self-cooling wire guide roller as claimed in claim 1, wherein: the outer walls of the two ends of the guide roller body are outwards protruded to form retaining rings (6).

3. The self-cooling wire guide roller as claimed in claim 1, wherein: limiting grooves (7) are formed in the inner walls of the two ends of the guide roller body, and the limiting grooves are matched with the roller supports.

4. The self-cooling wire guide roller as claimed in claim 1, wherein: the roller support is a hollow aluminum alloy annular cylinder, a roller mounting hole (8) is formed in the center of the roller support, the roller is fixedly connected with the roller support through the roller mounting hole, and the roller support and the guide roller body are coaxially arranged.

5. A self-cooling pallet track roller as claimed in claim 3, wherein: the heat dissipation holes are through holes which axially penetrate through the side wall of the roller support.

6. The self-cooling wire guide roller as claimed in claim 4, wherein: the number of the heat dissipation holes is not less than two, and the heat dissipation holes are axially symmetrically arranged.

7. The self-cooling wire guide roller as claimed in claim 1, wherein: the impeller comprises a rotating shaft (9), a fixed ring (10) and a plurality of blades (11), one ends of the blades are tangent to the rotating shaft, the other ends of the blades are connected with the fixed ring, and the fixed ring is fixedly connected with the inner wall of the guide roller body.

8. The self-cooling pallet track roller as defined in claim 7, wherein: the impeller is arranged at the center of the guide roller body.

9. The self-cooling wire guide roller as claimed in claim 1, wherein: the length of the guide roller body is 250-350 mm, and the diameter of the guide roller body is 50-70 mm.

10. The self-cooling supporting wire guide roller according to any one of claims 1 to 9, characterized in that: the surface of the guide roller body is provided with a ceramic coating.

Images