JPH10297731A - Belt operation device for moving conveyor belt in device for dehydrating material web - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a belt operation device to move a conveyor belt in a device for dehydrating a material web such as a screen belt or a felt belt which is structurally simplified without deteriorating its actuation performance. SOLUTION: A belt operation device comprises plural support rollers and deflection rollers 1, so an included belt 2 is moved to rotate by these rollers, control devices 5, 6 to adjust at least one roller of the deflection rollers are provided in a length direction of the included belt, so a degree of tension of the belt is set, and a device to control a holder of motion of the belt is provided. The control devices 5, 6 are alotted to be specific to two bearings 31, 41 of the deflection roller 1 which is adjustable in the length direction of the belt 2, so the bearings 31, 41 in the deflection roller are adjustable in different ranges or different directions from each other, thereby a motion direction of the belt can also be adjusted by the deflection roller 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a plurality of supporting rollers and a deflecting roller, by which a built-in belt can be moved so as to rotate, and the deflecting member is deflected in the longitudinal direction of the built-in belt. Belt or felt belt comprising a device for adjusting at least one of the rollers, whereby the tension of the belt is set and a device for controlling the direction of movement of the belt In particular, the present invention relates to a belt driving device for moving a conveyor belt in a device for dewatering a web of material.

[0002]

2. Description of the Related Art In a known device of this type, at least one of the deflection rollers arranged in the device is setably and fixedly supported in the longitudinal direction of the belt. By adjusting this deflecting roller, the belt can be tensioned in a manner suitable for technical conditions.

In a known device of this kind, at least one of the belt support rollers, located between the deflecting rollers, and one of the two bearings of the support roller can be set and fixed in the direction of belt movement. Such an arrangement allows it to be set at that position with respect to the direction of movement of the belt, and consequently the position of the pivot of this support roller relative to the direction of movement of the belt is variable. The direction of movement of the belt can be adjusted by this provision, since the belt is oriented perpendicular to the pivot of the support roller due to its contact with the support roller. As a result, the guidance of the belt on the supporting and deflecting rollers is guaranteed to meet the technical requirements.

[0004]

It has been recognized that the direction of movement of the belt can be controlled not only by the angular position of the support roller, but also by the angular position of the deflection roller. In view of the above, there is a need for an improved belt driving device.

[0005] Starting from this known prior art, based on the above recognition, the object of the present invention is to provide a belt operating device which is structurally simplified without impairing its operability.

[0006]

SUMMARY OF THE INVENTION Based on the recognition of the above technical background, according to the present invention, the object is to provide a control device for each bearing of a deflecting roller which is adjustable in the longitudinal direction of the belt. By means of which the two bearings of the deflecting roller are adjustable in different ranges or in different directions, so that the direction of movement of the belt is also adjustable by the deflecting roller. Is achieved.

Preferably, an adjustment spindle is assigned to each of the two bearings of the deflecting roller, and the two bearings are adjustable by rotation of the spindle. The adjusting spindles may each be rotatable via conical gears.

In an alternative embodiment, a motor is assigned to each of the two spindles, whereby the adjusting spindle is rotatable and the motor is driven at different speeds or in different directions via a control circuit. It is possible.

Preferably, the two adjusting spindles are assigned a drive shaft driven by a single electric motor,
A control gear, in particular a superposition gear, is arranged between the power branches for the two spindles.

In addition, a respective hydraulic control is assigned to each of the two bearings of the adjustable deflection roller, whereby the two bearings are adjustable. Furthermore, the control device is each embodied by a toothed belt drive or the like, each of which can be moved by one motor or by a single motor and drive shaft, and the control gear, in particular the superimposition gear, is two. Between the power branches for the two toothed belt drives.

The device according to the invention will be further described below with reference to an exemplary embodiment shown in the drawings.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS As can be seen in FIGS. 1 and 2, in a device for dewatering a web of material, such as a paper web, such a belt operating device has a screen at its left end. A belt 2 has a deflecting roller 1 guided thereon, and the belt 2 wraps around the deflecting roller 1 through about 180 °. In the upward movement direction A of the belt 2, the belt is guided on a plurality of support rollers. Disposed at the right end of the screen belt device is a second deflecting roller around which belt 2 also wraps over an angle of approximately 180 °. Such screen belt devices are known in the art, for example,
Neither the supporting roller nor the right-hand deflecting roller is shown in the drawing, as it is known from papermaking equipment.

The respective support bearings 31 and 41
Guide devices 3 and 4 for the screen belt 2
Of the pivot 11 of the deflecting roller 1
Two ends 13 and 14 are supported in these bearing blocks. The bearing blocks 31 and 41 are provided with holes 32 and 42, through which guide rods 33 and 44, which are aligned in the longitudinal direction of the screen belt device. The two bearing blocks 31 and 41 are also assigned two controls 5 and 6, by means of which the bearing blocks 31 and 41 can be adjusted in different directions and in different ranges of the direction of movement of the screen belt 2. .

In FIGS. 1 and 2, the first position of the bearing block 31 is shown by a solid line, and two other positions of the bearing block are shown by dashed lines.

Due to the upward movement of the screen belt 2 in or out of the direction of movement A, in the same range, the screen belt 2 is tensioned to meet the technical requirements. If, by comparison, the two bearing blocks 31 and 41 are adjusted in different directions and to different extents, a change in the angular position of the deflecting roller 1 is caused, whereby the control of the direction of movement of the screen belt 2 is also deflected. This is performed by the roller 1.

In the exemplary embodiment of FIGS. 1 and 2, the control devices 5 and 6 are assigned to two bearing blocks 31 and 41 and consist of a motor 51 and a gear 52. An adjusting spindle 55 is coupled via a conical gear 54 to the power branch shaft 53 of the gear 52 in a remotely operated manner. The adjusting spindle 55 extends through a nut thread 34 arranged in the bearing block 31. The power branch shaft 53 is also guided on a superposition gear 62 controlled by a second electric motor 61. The superimposed gear 62 is connected to the bearing block 41 via a second conical gear 64.
Is connected to a second adjusting spindle 65 which passes through a nut thread 44 arranged at the same position. The rotation of the adjustment spindle 65 causes the bearing block 41 to move the screen belt 2.
It can move in the direction of movement.

The operation mode of this device is as follows. By means of the electric motor 51, the power branch shaft 63 of the gear 52 is rotated, and as a result the bearing block 31 is moved along the guide rod 33 via the adjusting spindle 55. The shaft 63 is also connected to the gear 52 via the superposition gear 62.
The adjusting spindle 65 assigned to the bearing block 41 is rotated by means of a conical gear 64.
As a result, the bearing block 41 is also moved along the guide rod 43.

If there is no change in the rotational speed of the power branch shafts 53 and 63 due to the superimposed gear 62, then the adjusting spindles 55 and 65 are rotated at the same speed and consequently the two bearing blocks 31 and 41. Are moved to the same range. Therefore, the result is simply the tension of the screen belt 2. Conversely, if the superposition gear 62 is controlled by the second motor 61 so that the power split shaft 63 is rotated at a different speed from the power split shaft 53, then the adjusting spindles 55 and 65 will be at different speeds. Rotated and consequently two bearing blocks 31
And 41 are moved to different ranges. This changes the angular position of the deflecting roller 1 and consequently the direction of movement of the belt 2 is controlled.

With appropriate control of the two motors 51 and 61, it is thus possible to effect a tension on the screen belt 2 or a change in the angular position of the deflecting roller 1 in order to control the direction of movement of the screen belt. Alternatively, both tensioning of the screen belt 2 and a change in the angular position of the deflecting roller 1 can be achieved in order to adjust the direction of movement of the screen belt.

The exemplary embodiment of FIGS. 3 and 4 merely illustrates a toothed belt 57 in which gears 55 and 66 are arranged on power branch shafts 53 and 63 and are coupled to bearing blocks 31 and 41 in a remote-controlled manner. And 67
Are different from the exemplary embodiments of FIGS. 1 and 2 in that they are arranged on these gears. For this, the toothed belts 57 and 67 are arranged on the deflection wheels 35 and 45.

The rotation of the gears 55 and 66 causes movement of the toothed belts 57 and 67 and consequently the bearing blocks 31 and 41 connected to the toothed belts.
Are moved along the guide rods 33 and 43.

The exemplary embodiment of FIGS. 5 and 6 differs from the exemplary embodiment of FIGS. 1 and 2 in that a hydraulic control 7 is provided for adjusting the two bearing blocks 31 and 41. This control device has two regulating cylinders 7 assigned to the two bearing blocks 31 and 41 and acted on by the pressure medium from the pump 75 via the control slides 76, 77, 78, 79.
1 and 73, so that the pistons 72 and 74 of the adjusting cylinders 71 and 73, which are connected to the bearing blocks 31 and 41, are adjusted. Control of the pump 75 and of the control slides 76-79 is provided by a central control unit 70.

As a result, the bearing blocks 31 and 41 can be moved in the same range or in different ranges and in different directions, and as a result the screen belt 2 can be tensioned and / or controlled in the direction of movement.

The exemplary embodiment of FIGS. 7 and 8 differs from the exemplary embodiment of FIGS. 1 and 2 by the respective motors 81 and 82 being assigned to each of the adjusting spindles 55 and 65, and these two motors Is controlled by the control unit 80 such that the direction and rotational speed of the adjusting spindles 55 and 65 are arbitrary; as a result, the movement of the two bearing blocks 31 and 41 in the same range and the different ranges and in different directions. Are performed, whereby the screen belt 2 can be tensioned and / or
It is possible that the direction of the movement of the object is changed.

The two bearing blocks can be moved independently of one another in different areas and in different directions by means of at least one deflecting roller, so that when the deflecting roller is adjusted, the screen belt is tensioned in the direction of its movement. It should be apparent that all of the illustrated embodiments can be controlled and controlled. A simplification of the screen belt arrangement is thus clearly achieved, since no device for adjusting the support rollers is required.

Instead of a screen belt, a felt belt can also be considered.

Such a device for adjusting the belt can also be conceived in other devices in which the built-in belt is guided via deflection rollers and support rollers.

[0028]

As described above, the present invention has a plurality of supporting rollers and deflecting rollers, by which the built-in belt can be moved to rotate, and the longitudinal direction of the built-in belt can be changed. A screen for adjusting at least one of said deflecting rollers, thereby setting the tension of said belt and having a device for controlling the direction of movement of said belt. In a belt operating device for moving a conveyor belt, especially in a device for dewatering webs of material, such as a belt or a felt belt, each bearing of the deflecting roller, which is adjustable in the longitudinal direction of the belt, has its own control. A device is assigned, whereby the two bearings of the deflecting roller are in different areas or in different directions. A belt driving device that is structurally simplified without compromising operability, since it is adjustable so that the direction of movement of the belt is also adjustable by the deflection roller. Can be.

[Brief description of the drawings]

FIG. 1 is a plan view showing a left end of a first embodiment of the device according to the present invention.

FIG. 2 is a partially cutaway side view showing the left end of the first embodiment of the device according to the invention.

FIG. 3 is a plan view showing a left end of a second embodiment of the device according to the present invention;

FIG. 4 is a partially cutaway side view showing the left end of a second embodiment of the device according to the invention.

FIG. 5 is a plan view showing a left end of a third embodiment of the device according to the present invention;

FIG. 6 is a partially cutaway side view showing the left end of a third embodiment of the device according to the invention.

FIG. 7 is a plan view showing a left end of a fourth embodiment of the device according to the present invention;

FIG. 8 is a partial cutaway side view showing the left end of a fourth embodiment of the device according to the invention.

DESCRIPTION OF SYMBOLS 1 Deflection roller 2 Screen belt 3 Guide device 4 Guide device 5 Control device 6 Control device 11 Axis 31 Bearing block 33 Guide rod 41 Bearing block 51 Electric motor 54 Conical ring gear 55 Adjustment spindle 57 Toothed belt drive 61 Second motor 62 Superimposed gear 64 Conical gear 65 Adjusting spindle 67 Toothed belt drive 71 Hydraulic controller 72 Hydraulic controller 73 Hydraulic controller 74 Hydraulic controller 80 Control unit 81 Motor 82 Motor

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Heinz Barthelms Austria 8333 Teufenbach, Enuar 63

Claims (7)

[Claims] The invention has a plurality of support rollers and a deflecting roller (1) by means of which a built-in belt (2) can be moved in a rotating manner, in the longitudinal direction of said built-in belt (2). A device (5, 6) for adjusting at least one of said deflecting rollers (1), whereby the tension of said belt (2) is set and the movement of said belt (2) is A belt operating device for moving a conveyor belt in a device for dewatering a web of material, such as a screen belt or a felt belt, having a device for controlling the direction, the longitudinal direction of said belt (2). Each bearing (31, 41) of the deflecting roller (1), which is adjustable in its own right, is assigned its own control device (5, 6), whereby the deflecting roller is adjusted. (1) two bearing (31, 41)
Belt operating device, wherein the direction of movement of the belt (2) is also adjustable by the deflecting roller (1). 2. An adjusting spindle (55, 65) is assigned to each of the two bearings (31, 41) of the deflecting roller (1), and the rotation of the spindle causes the two bearings (31, 41) to rotate. 2. The belt driving device according to claim 1, wherein the belt driving device is adjustable. 3. The adjusting spindle according to claim 1, wherein each of the adjusting spindles comprises (55,
3. The belt operating device according to claim 2, wherein the first and second gears are rotatable via conical gears. 4. An electric motor (81, 82) is assigned to each of the two spindles (55, 65),
Thereby, the adjusting spindles (55, 65) are rotatable and the electric motors (81, 82) can be driven at different speeds or in different directions via the control circuit (80) (FIGS. 7, 7). 8) The method according to claim 2, wherein
Or the belt driving device according to 3. 5. A drive shaft (5) driven by a single electric motor (51) on said two spindles (55, 65).
3) and the control gear, in particular the superposition gear (62), is arranged between the power branches for the two spindles (55, 65) (FIGS. 1, 2, 3, 4). The belt driving device according to claim 2 or 3, wherein: 6. A hydraulic control device (71, 72, 73, 74) is assigned to each of said two bearings (31, 41) of said adjustable deflection roller (1), whereby said two 2. The belt operating device according to claim 1, wherein the bearings (31, 41) are adjustable (FIGS. 5, 6). 7. The control device according to claim 1, wherein the control device is movable by one motor or by a single motor (51) and a drive shaft, respectively, such as by a toothed belt drive (57, 67). And a control gear, in particular a superposition gear (62), with two toothed belt drives (57, 67)
2. A power supply device according to claim 1, wherein the power supply device is provided between power branches.
A belt driving device according to item 1.