CN220311424U

CN220311424U - Multi-roller steel belt surface tooth rolling device

Info

Publication number: CN220311424U
Application number: CN202223177920.XU
Authority: CN
Inventors: 胡省宪; 徐勇; 沈凌锋; 沈春锋
Original assignee: Jiangsu Yucheng Titanium And New Material Technology Co ltd
Current assignee: Jiangsu Yucheng Titanium And New Material Technology Co ltd
Priority date: 2022-11-28
Filing date: 2022-11-28
Publication date: 2024-01-09
Anticipated expiration: 2032-11-28

Abstract

The utility model provides a multi-roller steel belt surface tooth rolling device, and relates to the technical field of steel belt processing. This multi-roller steel band surface roll tooth device, which comprises a frame, frame top both sides all are provided with the steering roller, the inside embossing roller that is provided with of frame, the embossing roller outside is provided with the tooth mould that rolls, tooth mould outside cover is equipped with the steel band, the inside both sides of frame all rotate and are connected with two work rolls, the inside both sides of frame all rotate and are connected with first backing roll, two first backing roll contacts with a plurality of embossing rollers respectively, the inside both sides of frame all rotate and are connected with the transmission backing roll, the quantity of transmission backing roll sets up to four, a plurality of the transmission backing roll corresponds each other. The multi-roller steel belt surface tooth rolling device can avoid steel belt distortion and wrinkling caused by non-uniform deformation and can prevent S-shaped deformation of the working roller.

Description

Multi-roller steel belt surface tooth rolling device

Technical Field

The utility model relates to a tooth rolling device, in particular to a multi-roller steel belt surface tooth rolling device, and belongs to the technical field of steel belt processing.

Background

The internal tooth pipe has a use history of more than 20 years in the air conditioning industry, but the traditional internal tooth pipe can only process soft metals such as copper, aluminum and the like. In view of corrosion resistance and strength, copper pipes have been used for air-conditioning heat exchangers, but due to the current trend of high copper prices, stainless steel has been used instead of copper. However, because stainless steel has high hardness, it is difficult to process internal teeth, and a conventional copper internal tooth tube is formed by lining a seamless copper tube with a spiral tooth core head, and externally extruding the copper tube with a roller to print a pattern on the core head on the inner wall of the copper tube. And the stainless steel can only be rolled on the surface of the steel belt, and then the rolled steel belt is used for rolling the pipe.

In the prior art, the rigidity of the roller is insufficient under the same shaft diameter, so that the shaft is arched during tooth rolling, the transverse thickness of the strip is uneven, the strip is S-shaped, even the roller shaft is broken when serious, the light pipe is in line contact through the steel belt extrusion embossing roller, and the contact area is negligible. In practice the contact point is due to the deformation of the rolls and the strip, the contact surface becomes in surface contact, and the greater the pressure, the more severe the deformation and the greater the contact area. And under the same conditions, the roll is subjected to a force equal to the yield strength of the material multiplied by the contact area. Increasing the smooth roll diameter causes the required downforce to be greater and greater, and the bearing load on both sides of the mill is extremely high.

Disclosure of Invention

(one) solving the technical problems

The utility model aims to solve the problems and provide a multi-roller steel belt surface tooth rolling device which solves the problems that in the prior art, the rigidity of a roller is insufficient under the same shaft diameter, so that the shaft is arched during tooth rolling, the transverse thickness of a belt is uneven, the belt is S-shaped, even the roller shaft is broken when serious, a light pipe is in line contact through a steel belt extrusion embossing roller, and the contact area is negligible. In practice the contact point is due to the deformation of the rolls and the strip, the contact surface becomes in surface contact, and the greater the pressure, the more severe the deformation and the greater the contact area. And under the same conditions, the roll is subjected to a force equal to the yield strength of the material multiplied by the contact area. Increasing the diameter of the smooth roll causes the problem that the required down force is larger and the bearing load on the two sides of the rolling mill is extremely large.

(II) technical scheme

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a multi-roller steel band surface tooth rolling device, includes the frame, frame top both sides all are provided with the steering roller, the inside embossing roller that is provided with of frame, the embossing roller outside is provided with the tooth rolling mould, tooth rolling mould outside cover is equipped with the steel band, two steering roller outsides are located to the steel band both ends difference cover, the inside both sides of frame all rotate and are connected with two work rolls, two the work roll sets up respectively in the steel band both sides and contacts with the steel band, the inside both sides of frame all rotate and are connected with first backing roll, two first backing roll contacts with a plurality of embossing rollers respectively, the inside both sides of frame all rotate and are connected with the transmission backing roll, the quantity of transmission backing roll sets up to four, a plurality of the transmission backing roll corresponds each other.

Preferably, the inside both sides of frame are all fixedly connected with wedge, one of them wedge one side is provided with coarse adjustment and pushes down the inclined plane, coarse adjustment pushes down inclined plane one side and is provided with coarse adjustment flat saddle, coarse adjustment flat saddle is inside to rotate and is connected with two third back shafts, is used for coarse adjustment work roller position, can push down the inclined plane extrusion effect under the left and right sides along the horizontal direction, plays the effect of adjustment volume of pushing down.

Preferably, another wedge one side is provided with fine setting and pushes down the inclined plane, fine setting pushes down inclined plane one side and is provided with the flat saddle of fine setting, the inside rotation of flat saddle of fine setting is connected with two second back shafts, is used for fine adjustment work roll position, can push down the inclined plane extrusion effect down by coarse setting along the horizontal direction and control the removal, plays the effect of adjustment volume of pushing down.

Preferably, a plurality of second backing bearings are arranged on the outer sides of the two second support shafts, and the second backing bearings are respectively arranged inside the micro leveling saddle and the rough leveling saddle.

Preferably, the inside four corners of frame is all fixedly connected with circular arc saddle, the inside rotation of circular arc saddle is connected with first back shaft, first back shaft outside cover is equipped with a plurality of first back lining bearings, and is a plurality of first back lining bearings all set up inside the circular arc saddle, evenly disperse the reaction force from the embossing roller in the frame, let frame everywhere warp evenly, avoid the steel band distortion fold that uneven deformation caused.

Preferably, the circular arc center of the circular arc saddle coincides with the center of the first backing bearing and the center of the first support shaft.

Preferably, the first backing bearing and the arc saddle support part are arranged in a staggered manner, the space between the two support points is matched with the width of the first backing bearing, and the bending rigidity of the first support shaft is high due to the short space between the support points.

The utility model provides a multi-roller steel belt surface tooth rolling device, which has the following beneficial effects:

1. according to the multi-roller steel belt surface tooth rolling device, the steel belt is wrapped on the surface of the tooth rolling die, and the four working rollers are supported through four points to fix the tooth rolling die, so that the tooth rolling die is in a floating state without being supported, and the position of the tooth rolling die is not fixed at all. The plurality of working rolls respectively apply leftward and rightward forces, and the forces are mutually offset, so that the shaft of the tooth rolling die can be very thin, and the diameter of the tooth rolling die can be very small.

2. The multi-roller steel belt surface tooth rolling device has the advantages that the first supporting shaft, the second supporting shaft and the third supporting shaft have the functions of uniformly dispersing the reaction force from the embossing roller on the frame, so that the deformation of the frame is uniform everywhere, and the distortion and the wrinkling of the steel belt caused by the non-uniform deformation are avoided.

3. The multi-roller steel belt surface tooth rolling device is characterized in that four groups of transmission supporting rollers are arranged at equal positions. Two functions are performed, one torque input and one supporting function. The torque input rollers are connected with the speed reducer and the motor through the couplings, the four torque input rollers are mutually independent, and the four rollers can rotate at different rotating speeds, so that the situation that the linear speeds are different due to the fact that the rotating speeds are the same but the roller diameters are different is avoided.

4. The multi-roller steel belt surface tooth rolling device has the advantages that the first supporting roller is used for supporting the working roller, bending of the working roller is reduced, the second supporting shaft and the third supporting shaft are supported in multiple points, bending deformation is greatly reduced, slight deformation can occur under strong pressure, the deformed backing bearing is in an S shape, and the first supporting roller can play a role in shielding and relieving the S deformation and avoid being transmitted to the working roller.

5. The multi-roller steel strip surface tooth rolling device comprises eight groups of back lining bearing groups and four groups of fixed bearing groups, wherein an arc saddle is matched with a plum blossom supporting hole of a rolling mill. The four groups of movable bearing groups are matched with the coarse adjustment flat saddle and the fine adjustment flat saddle; because the bending rigidity of the first back lining bearing is high, only a thin first supporting shaft is needed under the same rolling force; because the backing bearing adopts multi-point support, the width of the strip is not a factor influencing the rolling force any more, and because the number of support points is increased proportionally with the increase of the width of the strip, the theory is that the strip with any width can be rolled.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a front view of the present utility model;

FIG. 3 is a schematic view of the internal structure of the present utility model;

FIG. 4 is a schematic view of the structure of the embossing roll of the present utility model;

FIG. 5 is a roll set assembly view of the present utility model;

FIG. 6 is a schematic view of the structure of the circular arc saddle of the present utility model;

FIG. 7 is a schematic view of a first support shaft according to the present utility model;

FIG. 8 is a schematic view of the structure of the fine tuning flat saddle of the present utility model;

FIG. 9 is a top cross-sectional view of the fine tuning flat saddle of the present utility model;

figure 10 is a side cross-sectional view of the micro-leveling saddle of the present utility model.

In the figure: 1. a frame; 2. a steering roller; 3. a steel strip; 4. embossing rollers; 5. coarse-adjusting the pressing inclined plane; 6. coarse leveling of the saddle; 7. fine tuning the pressing inclined plane; 8. fine tuning the flat saddle; 9. a work roll; 10. a first support shaft; 11. a first backup roll; 12. a transmission support roller; 13. arc saddle; 14. a first backing bearing; 15. a second backing bearing; 16. a second support shaft; 17. wedge blocks; 18. a third support shaft; 19. and (5) a tooth rolling die.

Detailed Description

The embodiment of the utility model provides a multi-roller steel belt surface tooth rolling device.

Referring to fig. 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10, the embossing machine comprises a frame 1, steering rollers 2 are arranged on two sides of the top of the frame 1, embossing rollers 4 are arranged in the frame 1, a tooth rolling die 19 is arranged on the outer side of the embossing rollers 4, a steel belt 3 is sleeved on the outer side of the tooth rolling die 19, two ends of the steel belt 3 are respectively sleeved on the outer sides of the two steering rollers 2, two working rollers 9 are respectively arranged on two sides of the steel belt 3 and are contacted with the steel belt 3, first supporting rollers 11 are respectively connected on two sides of the frame 1, two first supporting rollers 11 are respectively contacted with a plurality of embossing rollers 4, transmission supporting rollers 12 are respectively connected on two sides of the interior of the frame 1 in a rotating manner, the number of the transmission supporting rollers 12 is four, the transmission supporting rollers 12 are mutually corresponding, wedge blocks 17 are fixedly connected on two sides of the interior of the frame 1, one side of one wedge block 17 is provided with a rough-adjustment pressing inclined plane 5, one side of the rough-adjustment pressing inclined plane 5 is provided with a rough-adjustment flat saddle 6, two third supporting shafts 18 are rotatably connected in the rough-adjustment flat saddle 6 and used for roughly adjusting the position of a working roll 9, the two third supporting shafts can move left and right under the extrusion action of the rough-adjustment pressing inclined plane 5 along the horizontal direction to play a role in adjusting the pressing quantity, one side of the other wedge block 17 is provided with a fine-adjustment pressing inclined plane 7, one side of the fine-adjustment pressing inclined plane 7 is provided with a fine-adjustment flat saddle 8, two second supporting shafts 16 are rotatably connected in the fine-adjustment flat saddle 8 and used for finely adjusting the position of the working roll 9 and can move left and right under the extrusion action of the rough-adjustment pressing inclined plane 5 along the horizontal direction, a plurality of second backing bearings 15 are arranged on the outer sides of the two second supporting shafts 16, the second backing bearings 15 are respectively arranged in the micro leveling saddle 8 and the rough leveling saddle 6, four corners in the frame 1 are fixedly connected with the arc saddle 13, the arc saddle 13 is internally and rotatably connected with the first supporting shaft 10, the outer side of the first supporting shaft 10 is sleeved with the first backing bearings 14, the first backing bearings 14 are respectively arranged in the arc saddle 13, the reaction force from the embossing roller 4 is uniformly dispersed on the frame 1, the frame 1 is uniformly deformed everywhere, the distortion and the fold of the steel belt 3 caused by non-uniform deformation are avoided, the arc center of the arc saddle 13 coincides with the center of the first backing bearing 14 and the center of the first supporting shaft 10, the first backing bearings 14 are staggered with the supporting part of the arc saddle 13, the distance between the two supporting points is matched with the width of the first backing bearing 14, and the bending rigidity of the first supporting shaft 10 is very high because the distance between the supporting points is short.

In particular, the frame 1 is designed in a drum shape according to the deformation amount under the conventional stress condition, and in principle, the thickness is increased to resist deformation at the place where the stress is large, and the arc is excessively increased to disperse the stress at the place where the stress is concentrated.

The steering roller 2 is used for changing the trend of the steel belt 3 to adapt to the original gear rolling production line, because the original production line is matched with the steel belt 3 through rolling mill, the scheme is bypass type, in order to match the original production line, the steering roller 2 needs to be added to ensure that the trend of the steel belt 3 is matched with the original production line on one hand, and on the other hand, tension is conveniently applied to the steel belt 3.

The steel belt 3 is wrapped on the surface of the tooth rolling die 19, and the four working rolls 9 are supported through four points to fix the tooth rolling die 19, so that the tooth rolling die 19 is in a floating state without supporting, and the position is not fixed at all. The plurality of work rolls 9 apply forces to the left and right, respectively, and the forces cancel each other, so that the shaft of the tooth rolling die 19 can be made thin, and the diameter of the tooth rolling die 19 can be made small in the same way. However, the smaller the circumference, the heavier the die load, and the more likely the tooth surface is to fatigue fracture. Meanwhile, the smaller the circumferential radius of the steel strip 3 when the steel strip 3 passes around the tooth rolling die 19 is, the more serious the stress generated by the steel strip 3 is, so that the outer diameter of the tooth rolling die 19 is not smaller than 100mm in general, and the thicker the steel strip 3 is, the larger the die diameter is as much as possible.

The first support shaft 10, the second support shaft 16 and the third support shaft 18 have the function of uniformly dispersing the reaction force from the embossing roller 4 on the frame 1, so that the frame 1 deforms uniformly everywhere, and the distortion and wrinkling of the steel strip 3 caused by non-uniform deformation are avoided.

The drive support rolls 12 are in four groups in total and in a peer-to-peer position. Two functions are performed, one torque input and one supporting function. The torque input rollers are connected with the speed reducer and the motor through the coupler, and in fact, because the roller diameter is smaller, the speed reducer is not arranged in the rolling mill designed at this time, but the high torque motor is directly connected, and the four torque input rollers are mutually independent, so that the four rollers can rotate at different rotating speeds due to the worry that the roller diameter errors cause the rotation difference, and the linear speeds are different due to the fact that the rotating speeds are the same but the roller diameters are different. In addition, the transmission support roller 12 transmits torque to the working roller 9 and the embossing roller 4 through friction force, so that the surface roughness of the transmission support roller 12 is controlled between 0.08 and 0.04 microns, the second backing bearing 15 is damaged by too coarse, and slipping is easy due to insufficient smooth friction force.

The first supporting roller 11 is only used for supporting the working roller 9, four rollers which do not participate in torque transmission of the second layer can be used as torque input rollers, the number of the four rollers can be from one to six, only because four rollers are suitable for the working range of the first supporting roller 11, the first supporting roller 11 is used for supporting the working roller 9, bending of the working roller 9 is reduced, the second supporting shaft 16 and the third supporting shaft 18 are supported by multiple points, bending deformation is greatly reduced, but slight deformation still occurs under strong pressure, the deformed backing bearing is S-shaped, and the first supporting roller 11 can play a role in shielding and relieving the S-shaped deformation and avoid being transmitted to the working roller 9.

The work rolls 9 are in direct contact with the steel strip 3 and are required to have high hardness, high rigidity, wear resistance, smooth surface and surface roughness of less than 0.04 μm.

The first support shaft 10 is made of a high-rigidity material and is not easy to bend; the first backing bearing 14 adopts a cylindrical roller bearing with a thickened outer ring; the circular arc saddle 13 is processed by adopting a high-rigidity material, and the circular arc center of the circular arc saddle 13 coincides with the center of the first backing bearing 14 and the center of the first support shaft 10; the first backing bearing 14 and the supporting part of the circular arc saddle 13 are arranged in a staggered manner, the distance between the two supporting points is one bearing thickness, and the bending rigidity of the first supporting shaft 10 is very high because the distance between the supporting points is short; the whole back lining bearing group of the rolling mill is eight groups, four groups of fixed bearing groups are matched with plum blossom supporting holes of the rolling mill by adopting an arc saddle 13. The four groups of movable bearing groups are matched with the coarse adjustment flat saddle 6 and the fine adjustment flat saddle 8, and the coarse adjustment pressing inclined plane 5 and the fine adjustment pressing inclined plane 7; because the bending rigidity of the first backing bearing 14 is high, only a very thin first support shaft 10 is required under the same rolling force; because the backing bearing adopts multi-point support, the width of the strip is not a factor influencing the rolling force any more, because the number of support points increases proportionally with the increase of the width of the strip, the theory is that the strip 3 with any width can be rolled, but the strip 3 is not suitable to exceed 300mm width in view of torque transmission, processing errors and the like.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a multi-roller steel band surface tooth device, includes frame (1), its characterized in that: the novel steel strip rolling machine comprises a machine frame (1), wherein steering rollers (2) are arranged on two sides of the top of the machine frame (1), embossing rollers (4) are arranged inside the machine frame (1), a tooth rolling die (19) is arranged outside the embossing rollers (4), steel strips (3) are sleeved outside the tooth rolling die (19), two ends of each steel strip (3) are respectively sleeved outside the two steering rollers (2), two working rollers (9) are respectively rotatably connected to two sides of the machine frame (1), the two working rollers (9) are respectively arranged on two sides of each steel strip (3) and are in contact with the steel strips (3), first supporting rollers (11) are respectively rotatably connected to two sides of the inner side of the machine frame (1), transmission supporting rollers (12) are respectively rotatably connected to two sides of the inner side of the machine frame (1), and the number of the transmission supporting rollers (12) is four, and the transmission supporting rollers (12) are mutually corresponding.

2. The multi-roll steel strip surface tooth apparatus of claim 1 wherein: the novel adjustable support is characterized in that wedge blocks (17) are fixedly connected to two sides of the interior of the frame (1), one side of each wedge block (17) is provided with a coarse adjustment pressing inclined plane (5), one side of each coarse adjustment pressing inclined plane (5) is provided with a coarse adjustment flat saddle (6), and two third support shafts (18) are rotatably connected to the interior of each coarse adjustment flat saddle (6).

3. The multi-roll steel strip surface tooth apparatus of claim 2 wherein: the other wedge (17) one side is provided with fine setting and pushes down inclined plane (7), fine setting pushes down inclined plane (7) one side and is provided with fine setting flat saddle (8), the inside rotation of fine setting flat saddle (8) is connected with two second back shaft (16).

4. A multi-roll steel strip surface tooth system as claimed in claim 3 wherein: a plurality of second back lining bearings (15) are arranged on the outer sides of the two second support shafts (16), and the second back lining bearings (15) are respectively arranged inside the micro-leveling saddle (8) and the rough-leveling saddle (6).

5. The multi-roll steel strip surface tooth apparatus of claim 1 wherein: the novel arc-shaped support is characterized in that arc-shaped saddles (13) are fixedly connected to four corners of the interior of the frame (1), first support shafts (10) are rotatably connected to the interior of the arc-shaped saddles (13), a plurality of first backing bearings (14) are sleeved on the outer sides of the first support shafts (10), and the first backing bearings (14) are arranged inside the arc-shaped saddles (13).

6. The multi-roll steel strip surface tooth apparatus of claim 5 wherein: the circle center of the arc saddle (13) coincides with the circle center of the first backing bearing (14) and the center of the first support shaft (10).

7. The multi-roll steel strip surface tooth apparatus of claim 6 wherein: the first back lining bearings (14) and the supporting parts of the circular arc saddle (13) are arranged in a staggered mode, and the distance between the two supporting points is matched with the width of the first back lining bearings (14).