RU2313414C1 - Coiler drum made with possibility of widening and narrowing - Google Patents

Abstract

FIELD: equipment for coiling metallic belt.

SUBSTANCE: shaft of coiler drum has wedge surfaces engaging with joined surfaces of segment. Outer surface of segments forms circle for coiling belt. Segments may move relative to shaft in axial direction. In order to lubricate joined surfaces pipeline system is used; said system is connected with pump for lubricating material. Pump has control organ for realizing lubricant supply process. Pump is connected with unit for moving segments or with shaft of coiler drum. Control organ is connected with other of said members in such a way that to realize process for supplying lubricant at operation of means for moving segments.

EFFECT: lowered consumption of lubricant, improved ecology of production process, elimination of scratches, constant friction factor between mutually sliding surfaces.

11 cl, 3 dwg

Description

The invention relates to a drum coiler made with the possibility of expansion and contraction and suitable, in particular, for winding a metal tape, which comprises: a shaft of a drum coiler installed with a possibility of rotation, which on its outer circumference has at least one wedge surface, a number of interacting segments which along their perimeter have a surface for winding, in particular a metal tape, and which in their end region facing away from the surface for winding have at least one mating surface interacting with the wedge surface of the winder drum shaft, means for moving the segments relative to the winder drum shaft in the axial direction, as well as a piping system by which lubricant, in particular plastic grease, is supplied to the winder drum seats, which need lubrication.

Winders of this kind, for example, are needed in the manufacture of steel strip. Tapes are wound on them and wound from them, for example, then to carry out other stages of its manufacture. In order for the tape to be wound onto the drum or unwound from it without slipping, the reel drum has the possibility of expansion or contraction. That is, the circumference of the drum provided for winding the tape can change its diameter. For example, the winder drum is hydraulically bursting during the winding process, so that there is contact with a power circuit between the drum and the metal tape.

At the same time, for the stable and productive operation of the reel drum, it is required that sufficient lubricant, in particular grease, be supplied to it. Only in this case, the operational properties of the winder will be provided over time. In addition, this reduces wear.

Various solutions are known for lubricating the winder drum:

Firstly, lubrication work can be carried out manually using a grease nipple, which is carried out at predetermined time intervals. The supplied grease should be sufficient until subsequent greasing. Excess lubricant may result in an unacceptable release of lubricant, which, in particular, can be a problem, since often the loss of lubricant occurs as a result of centrifugal force.

Another possibility of lubricating the reel drum is to lubricate the free end of the shaft, mainly on the drive side, using a rotary rotary distributor from a stationary grease pump. In this case, the lubricant is supplied to the reel drum. In this case, a constant supply of lubricant can be provided within the framework of a centralized lubrication system, which, in particular, can be provided on coilers for hot belt.

For drums of stainless steel coilers, often at the shaft end on the service side, through the thrust bearing, when stopping, the lubrication equipment is automatically connected via a plug connection and the drum is lubricated in this way. Then, when the reel drum is operating, the lubricant connection is opened.

Constantly operating lubricant dispensers are also known, which, however, often do not provide the necessary lubricant pressure to achieve a good supply of all lubrication points.

From EP 0 722 791 B1, a device for lubricating a sliding drum of a winder is known, in which all lubrication points on the drum shaft can be lubricated centrally. In this case, cartridges are inserted into the central hole of the drum shaft, which are connected to lubrication points to be supplied. Further, a connection is provided to the central distribution of the lubricant, supplying the lubricant to the holes in the cartridges.

DE-OS 20 32 542 also provides for the provision of lubrication points for the reel drum using an integrated lubrication piping system in the drum, while it is connected to a pressure source inlet pipe. The lubricant is supplied through the same pipeline and through the distribution element to the reel drum.

Similar solutions are known from US 2,578,953 and US 4,231,577.

A disadvantage of the known solutions is that often too much or too little lubricant is supplied to the places to be lubricated in the reel drum. Both the lack of lubricant and its excess amount entail great disadvantages. With insufficient lubrication, seizure of surfaces sliding along one another in the reel drum may occur. Excessive lubrication increases costs and creates a burden on the environment, which also entails an increase in costs.

The aforementioned problem is further complicated by the fact that due to centrifugal forces in the reel drum, lubricant may leak from lubrication points where its presence is necessary.

In other solutions, it is difficult to connect a system that provides lubrication at certain intervals to the reel drum to supply lubricant.

In this regard, the object of the invention is, therefore, the improvement of the drum winder of the named type to eliminate these disadvantages. In this case, an improvement in drum lubrication should be achieved, which would give economic and environmental benefits.

The solution to this problem according to the invention provides that the piping system is connected to a lubricant pump, while the lubricant pump has a feed control, and this lubricant pump is connected to the means for moving segments or the winder drum shaft and the control is connected with the other of these elements in such a way that during the operation of the means for moving the segments, the feeding process is carried out.

The idea of the invention lies in the fact that the pump for supplying lubricant is activated only when the movement is moving to expand or to narrow the reel drum, and only then is the lubrication of places that require lubrication. The operation of the lubricant pump is controlled by the movement movement in the reel drum, so that external control, movement or supply for the purpose of carrying out lubrication is not required.

The first improvement provides that the lubricant feed pump is connected to a lubricant reservoir. It can, if necessary, be filled over a relatively large period of time or replaced. Further, the pump for supplying lubricant can be located in the reservoir for the supply of lubricant. It will further be advantageous if the lubricant reservoir is axially located in the end region of the winder drum.

In order to reliably provide lubricant to lubricant points located on the drum as far away as possible from the lubricant feed pump, the lubricant feed pump is preferably suitable to provide a lubricant pressure of at least 150 bar.

The control can be made in the form of a pin oriented in the direction of the axis of the reel drum.

The means for moving the segment relative to the shaft of the winder drum may comprise a drive bar located in a central hole of the shaft of the winder drum and a pressure plate connected to the drive bar. In this case, an advantage arises that the pin-shaped control passes through at least the axial end region of the pressure plate and abuts against the axial end of the shaft of the reel drum. In this case, the pump for supplying lubricant located in the container for this material is rigidly fixed to the pressure plate; the pump control for supplying lubricant passes through an axis-oriented hole in the pressure plate and is adjacent to the axial end of the shaft of the reel drum. Only when there is an axial displacement between the winder drum shaft and the pressure plate, does the pump for lubricant supply start to work.

Another improvement provides that at least one lubricant distributor is located in the piping system between the lubricant supply pump and the place to be lubricated, which distributes the lubricant to different pipelines leading to different places to be lubricated. It is preferable that the distribution is carried out in the first lubricant distributor from each pump to each segment, with a second lubricant distributor located on each segment, which directs the lubricant to each contact point of the wedge surfaces and mating surfaces.

A particular advantage is when the pump for supplying lubricant together with the control element, as well as the container for lubricant are located as additional equipment on the reel drum. This makes it possible to equip existing winder drum systems with equipment in accordance with the invention.

The technical solution proposed in the invention is characterized in that with its help in a very simple and accordingly economical way, reliable supply of a large number of lubrication points, for example, more than 20, with a relatively large length of pipelines, without incurring high costs in terms of equipment, can be achieved . The necessary lubrication pressure can be created without problems in order to reliably cover the relatively long delivery distances through pipelines.

In the solution according to the invention, transportation of the lubricant always occurs only when there is a need for it. If the expansion or contraction of the reel drum has already occurred, then lubrication does not occur, since this is not required in a different operating mode. Only when expansion or contraction occurs does the lubrication system activate. Thus, constant lubrication is carried out, if necessary, that is, with each course of expansion of the drum. Thus, it is possible to spend a minimum amount of lubricant over a long period of time. The winder drum is provided with lubricant automatically in accordance with the frequency of movement of the drum. The sliding surfaces of the moving parts of the drum always have a sufficient supply of lubricant, which ensures an approximately constant coefficient of friction, which is especially important during operation. In other words, the resistance to movement during the expansion or contraction of the drum almost does not change during operation.

The provided lubricant reservoir independently provides lubrication points, so there is no need to connect the coiler drum to an external lubricant supply system. Thus, significantly reduced the cost of maintenance work. In addition, there is no need to connect to other necessary power sources (current). At long time intervals, the lubricant reservoir can be replenished or replaced.

Since lubrication is carried out only when the drum is moving, no control is required, for example, using a control device.

As a result, the costs during the operation of the reel drum are reduced and control devices such as pressure monitoring devices or monitoring the position of the limit switch when connecting the supply system become redundant. Automation of lubrication is possible in the simplest way.

The drawings show examples of the invention. At the same time, they show:

Figure 1 is a side view in section of an expanding drum winder;

Figure 2 - the right end axial region of the reel drum according to figure 1 in an enlarged image;

Figure 3 is a front view (in the direction of the axis A) of the reel drum.

The figures depict the drum 1 of the winder, which has the ability to expand and, accordingly, narrowing the circumference of the winder. The drum 1 of the winder has a shaft 2 of the drum of the winder, which in the axial direction 4 is provided with a number of wedge surfaces 3. The shaft 2 of the drum of the winder in the embodiment has four segments 4 (see, in particular, FIG. 3), each of which forms a quarter, respectively circular rings. On the radial outer side, the segments 4 have respectively winding surfaces 5 which serve to wind the metal strip. The end region 6, facing away from this winding surface 5, of each segment 4 has a mating wedge surface 7, the wedge angle of which corresponds to the wedge surface 3.

As can be seen in figures 1 and 2, with the relative movement of the segments 4 relative to the shaft 2 of the reel drum in the axial direction A, expansion occurs, and with the reverse movement, the segments 4 are narrowed.

Such axial movement of the segments 4 relative to the shaft 2 of the drum is provided by means of 8, which among other things has a drive rod 15, which is located in the Central hole 14 of the shaft 2 of the drum winder. A pressure plate 16 is fixed at the axial end of the drive rod 15 with a threaded connection. When the drive rod 15 is moved in the axial direction A, the pressure plate 16 moves accordingly in the central hole 14. It has a radially outwardly extending control portion 19 that interacts with the recess 20 in segment 4. Thus, segments 4 are moved together by the amount of movement of the drive rod 15 in the axial direction A.

The wedge surfaces 3, 7 form contact surfaces 10, which must be provided with a lubricant for good operation of the reel 1 drum during expansion and, accordingly, during narrowing. To these places 10 of the lubricant during expansion and contraction of the drum 1 of the winder is supplied lubricant through the piping system 9.

For the supply of lubricant is a pump 11, which is located in the container 13 for lubricant, while the container using a threaded connection is installed in the axial end region of the drum of the winder 1. The pump 11 and the container 13 are located so that they are rigidly connected to the pressure plate 16.

The pressure plate 16 has an opening 21 in which the pump control 12 for supplying lubricant 11 is located. The axis of the hole is directed in the direction of axis A. Further, the pin-shaped control 12 is attached with its axial end to the axial end of the shaft 2 of the reel drum.

With a relative axial displacement between the shaft 2 of the reel 2 drum and segments 4, together with the pressure plate 16 and the pump 11 for supplying lubricant with a reservoir for the supply of lubricant 13, the control body 12 adjacent to the shaft 2 of the drum 2 is displaced and is thus actuated pump 11, as a result of which it supplies lubricant from the reservoir 13 to the piping system 9. Such transportation occurs exclusively with the relative displacement of parts 2 and 4, 16, 11, so that only in this case is the lubrication of the places 10. Thus, only the necessary amount of lubricant is supplied to the places 10. There is no lack of lubricant, nor its excess. Accordingly, the capacity of the pump 11 for supplying lubricant can be selected.

Initially, the lubricant located in the reservoir for the supply of lubricant 13, when the pump is swinging, is sucked up by the pump 11 through the suction pipe 22 and through the pipe 23 is fed into the pipe 24 and transported through it to the first lubricant distributor 17. This first lubricant distributor 17 distributes the lubricant into four lines and directs the lubricant to the second lubricant distributors 18, of which there are only four, with each second lubricant distributor 18 being assigned to one segment 4. From each second distributor 18, the lubricant flows into a distribution hole 25, with each segment 4 having such an opening. As best seen in FIG. 1, the inlet openings 26 extend from the distribution hole 25 to the individual places 10 to be lubricated.

Accordingly, the lubricant can be supplied to the places 10 through the pipe 27 in the shaft 2 of the reel drum and the supply holes 28.

Thanks to this embodiment of the lubrication system, the drum 1 of the winder is lubricated automatically and regardless of the frequency of movement of the drum in terms of expansion or contraction. An external connection using a rotary distributor or an external connection to a lubricant power supply, and, if necessary, position monitoring with a limit switch, is not required. The high pressure required for large pipelines and the presence of many lubrication points can be arbitrarily large, which is determined by the parameters or the choice of pump 11.

The minimum amount of lubricant for each place to be lubricated can be supplied independently without external supply devices. The lubrication site is chosen by specialists in accordance with the requirements for each reel drum.

The advantage is also provided by the fact that the reservoir 13 for lubricant together with the pump 11 can be installed as additional equipment on existing systems. This provides economic benefits while consuming a minimum amount of lubricant to lubricate moving parts. Using a constant film of lubricant at places 10, the coefficient of friction is maintained at a constant level and, therefore, the internal resistance of the drum 1 of the winder. Changing the amount of lubricant in the direction of reduction and the occurrence of the danger of self-braking of the drum as a result of this is thus eliminated. Winder drums, whose segments are able to move, carry the load from the weight of the roll and clamp the tape, and require an almost constant coefficient of friction, which can only be achieved by constant lubrication during movement.

List of items

1. Drum winder

2. Winder drum shaft

3. Wedge surface

4. Segment

5. Winding surface

6. End area

7. The surface mating with the wedge surface

8. Means for moving segments

9. Piping system for lubricant

10. Place of lubrication

11. Lubricant pump

12. Governing body

13. Lubricant reservoir

14. Central hole

15. Drive rod

16. Pressure plate

17. The first lubricant dispenser

18. The second lubricant distributor

19. Management Plot

20. Mining

21. Hole

22. Suction pipe

23. Pipeline

24. The pipeline

25. Distribution hole

26. Inlet pipe

27. Pipeline

28. Inlet pipe

A - Axis direction

Claims (11)

1. The drum (1) of the winder, made with the possibility of expansion and contraction, in particular for winding a metal tape, comprising a rotatably mounted shaft (2) of the drum of the winder, which on its outer circumference has at least one wedge surface (3 ), a number of interacting segments (4), which along their perimeter have a surface (5) for winding, in particular, a metal tape, and which in their end region (6), facing away from the surface (5) for winding, have at least at least one mating surface (7) interacting with the wedge surface (3) of the shaft (2) of the winder drum, means (8) for moving segments (4) relative to the shaft (2) of the winder drum in the axial direction (A), as well as the piping system (9) for supplying lubricant, in particular grease, to places (10) of the drum (1) of the coiler, which need lubrication, characterized in that the piping system (9) is connected to a pump (11) for supplying lubricant, while the pump (11) for supplying lubricant has a control element (12) the supply process and connected to the means (8) for moving the segments (4) or the shaft (2) of the reel drum and the control element (12) is connected to the other of these elements (2, 8) so that when the means (8) for moving the segments ( 4) the lubrication process is carried out. 2. A winder drum according to claim 1, characterized in that the lubricant pump (11) is connected to a lubricant reservoir (13). 3. The winder drum according to claim 2, characterized in that the pump (11) for supplying lubricant is located inside the container (13) for the lubricant. 4. The winder drum according to claim 2 or 3, characterized in that the reservoir for the supply of lubricant (13) is located axially in the end region of the drum of the winder (1). 5. The winder drum according to claim 1, characterized in that the pump (11) for supplying lubricant is configured to create a lubricant pressure of at least 150 bar. 6. The winder drum according to claim 1, characterized in that the control body (12) is made in the form of a pin oriented in the direction of the axis (A). 7. The winder drum according to claim 1, characterized in that the means (8) for moving the segments (4) relative to the shaft (2) of the winder drum has a drive rod (15) located in the central hole (14) of the shaft (2) of the winder drum as well as a pressure plate (16) connected to the drive rod. 8. The winder drum according to claim 6 or 7, characterized in that the pin-shaped control member (12) passes at least through the axial end region of the pressure plate (16) and abuts against the axial end of the shaft (2) of the winder drum. 9. The winder drum according to claim 1, characterized in that at least one distributor (17, 18) is located in the piping system (9) between the pump (11) for supplying lubricant and the place (10) to be lubricated lubricant that distributes the lubricant through various pipelines leading to different locations (10) to be lubricated (10). 10. A winder drum according to claim 9, characterized in that the first lubricant distributor (17) distributes the lubricant from the pump (11) to supply lubricant to each segment (4), with a second distributor located on each segment (4) (18) a lubricant that directs the lubricant to each contact point (10) of the contact of the wedge surfaces (3) and the surfaces mating with them (7). 11. The winder drum according to claim 2, characterized in that the pump (11) for supplying lubricant together with the control body (12), as well as the reservoir (13) for the supply of lubricant are located as additional equipment on the drum (1) of the winder .

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