JPH07218141A - Regulating equipment of position of roller of rotary kiln and regulating method of position of roller using the equipment - Google Patents

Abstract

PURPOSE:To regulate a roller correctly and maintain an operation efficiency to be high at all times by a method wherein a thrust-in position of a cylinder device thrusting in and supporting an intermediate bed is controlled on the basis of signals of detection by a push-out force detector and a thrust force detector. CONSTITUTION:Push-out force detectors 10a to 13a detecting push-out forces toward the outside in the direction A of the action to which left and right rollers 4 and 5 are subjected are provided between rise parts 15a of intermediate beds 15 of which the positions can be regulated in the lateral direction A and lateral and longitudinal bearings 10 to 13, while thrust force detectors 10b to 13b detecting thrust forces in the longitudinal direction B to which the left and right rollers 4 and 5 are subjected are provided between rise parts 15b in the longitudinal direction B and the bearings 10 to 13. Cylinder devices 10c to 13c thrusting in and supporting the intermediate beds 15 are provided on a bed 18. A control device 17 receiving signals from the push-out force detectors 10a to 13a and the thrust force detectors 10b to 13b and controlling thrust-in positions of the cylinder devices 10c to 13c are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roller position adjusting device for a rotary kiln and a roller position adjusting method using the device.

[0002]

2. Description of the Related Art FIGS. 4 and 5 show a state in which a rotary kiln 1 for firing cement or the like is viewed from an obliquely upper surface. This type of rotary kiln 1 has a required inclination angle. A plurality of steel tires 2 are arranged at required positions in the longitudinal direction thereof, and the left and right rollers 4 and 5 having rotating shafts 3 and 3'which are substantially parallel to the rotary kiln 1 are used to lower the rotary kiln 1 to the lower left and right. It is supported from both sides. Also, the left and right front and rear bearings 10, 11 for supporting the left roller 4,
And the right and left front and rear bearings 12 and 1 for supporting the right roller 5
3 are provided in front of and behind the rotating shafts 3, 3 ', arranged on the bed 18 and fixed by bolts 19. When the rotary kiln 1 is rotated, it is driven by the electric motor 6 via the speed reducer 7, the main pinion 8, the gear 9, and the like.

The firing of the cement by the rotary kiln 1 is carried out by feeding the cement from above while rotating the rotary kiln 1 to heat the cement, but when such an operation is continued, Distortion may occur in the rotary kiln 1 due to heat load, coaching, etc., so that the left and right rollers 4, 5 are subject to one-sided contact. The rotation shafts 3, 3'of the rollers 4, 5 are distorted by this one-side contact, the bearings 10, 11, 12, 13 are damaged by the action of a large frictional force, and the rotation center of the rotary kiln 1 and the rollers are broken. When the parallel state of the rotation centers of 4 and 5 collapses, the rotary kiln 1
There is a problem that the thrust force is generated in the rotary kiln 1 and the rotary kiln 1 moves in the axial direction to apply a force to the preheater or the like connected to the rotary kiln 1 to damage it.

Therefore, in order to solve the above problems, the hydraulic cylinder 1 is conventionally provided between the bed 18 and the left and right front and rear bearings 10, 11, 12, 13 as shown in FIG.
4 is provided, and when the rotary kiln 1 is distorted, the bolts 19 are loosened and the bearings 1
0, 11, 12, 13 are pushed in to adjust the positions of the rollers 4, 5 so that the load of the rotary kiln 1 applied to the rollers 4, 5 becomes even, and the rotary kiln 1
The center of rotation of the roller is parallel to the center of rotation of the left and right rollers 4, 5.

[0005]

However, since the adjustment work of the rollers 4 and 5 depends on the experience and can of a skilled person, it is difficult to make an accurate adjustment, and the operation of the rotary kiln 1 is stopped for the adjustment work. Therefore, there is a problem in that the idle period of the rotary kiln 1 becomes long and the operating efficiency deteriorates.

In view of the above-mentioned circumstances, the present invention has been made for the purpose of accurately adjusting the rollers and keeping the operating efficiency always high.

[0007]

SUMMARY OF THE INVENTION A roller position adjusting device for a rotary kiln according to the present invention is substantially parallel to the axis of the rotary kiln that supports tires fitted over the rotary kiln at required intervals in the longitudinal direction from the lower left and right sides. A left roller having a rotation shaft and a right roller are disposed, and a left front bearing and a right front bearing arranged at the front and rear positions of the left roller and the right front bearing arranged at the front and rear positions of the right roller, respectively. Are disposed on the bed, a horizontally movable intermediate bed is provided between each of the bearings and the bed of the rotary kiln support device, and the bearing is received between the intermediate bed and the bearing. A push-out force detector for detecting a push-out force outward in the left-right direction is provided, and a thrust force detector for detecting a forward-backward thrust force received by the bearings of the left and right rollers is provided. A left front and rear cylinder device and a right front and rear cylinder device for supporting the intermediate bed by pushing it inward in the left-right direction against the pushing force transmitted through the pushing force detector are provided on the carriage. And a control device for controlling the pushing position of each cylinder device based on the signal detected by each thrust force detector.

Further, by using the roller position adjusting device, the pushing force detectors detect the pushing forces of the left and right front and rear bearings supporting the left and right rollers toward the outer side in the left and right direction, respectively, and the detected left and right bearings are detected. Adjust the pushing positions of the left and right front and rear cylinder devices through the control unit so that the sum of the pushing force detection values of the front and rear bearings becomes equal to the sum of the pushing force detection values of the right and left front bearings. The thrust force detector detects each thrust force applied to the right and left front bearings in the front-rear direction, and pushes the left and right cylinder devices through the control device so that the detected front and rear thrust force values of the left and right bearings are equal. Adjust the position and use the control device to adjust the front and rear thrust force before and after the right front and rear bearings so that the front and rear thrust force detection values are equal. It is possible to adjust the pushed-in position of the Sunda device.

[0009]

In the present invention, the pushing force to the outside in the left-right direction received by the left and right rollers is detected by each pushing force detector provided between the intermediate bed and the bearing through each bearing, and the left and right front and rear pushing force detectors are detected. The push force detected by the control unit is sent to the control unit, and the push unit installed on the bed is controlled by the control unit so that the sum of the push force detection values of the left and right front bearings becomes equal to the sum of the push force detection values of the right front and rear bearings. Adjusting the pushing position of the left and right front and rear cylinder devices that push and support the intermediate bed toward the inner side in the left and right direction against the pushing force transmitted through the force detector, move each bearing and move the bearing to the rotary kiln. Make the load even on the left and right.

Further, the thrust force received by the left and right rollers in the front-rear direction is detected by each thrust force detector provided between the intermediate bed and the bearing through each bearing, and by the thrust force detectors on the left and right sides. Send the detected thrust force detection value to the control device so that the thrust force detection values of the left and right front bearings are equal and the thrust force detection values of the right and left front bearing are equal. The inward and leftward and rightward front and rear cylinder devices that support the intermediate bed by pushing the intermediate bed against the pushing force that is transmitted through the device are adjusted by adjusting the pushing positions of the left and right cylinder devices to move the bearings and rotate the rotary kiln and the rollers. Keep the centers parallel and avoid generating thrust forces.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

1 and 2 show an embodiment of a roller position adjusting device according to the present invention.
Bearings 10, 11 and 1 at the front and rear positions of the rotating shafts 3, 3'of 5.
2 and 13 are provided, and the left and right front and rear bearings 10 and 1 are provided.
1, 12 and 13 are arranged on a bed 18 reinforced by ribs 18a via an intermediate bed 15 and fixed to the bed 18 by bolts 19. Since the long hole 16 extending in the left-right direction A is formed in the penetrating portion of the bed 18 of the bed 18, the intermediate bed 15 can be horizontally moved in the left-right direction A to adjust its position. .

Further, between the left and right front and rear bearings 10, 11, 12, 13 and the rising portions 15a formed at the outer ends of the respective intermediate beds 15 in the left and right direction A, the left and right rollers 4, 4,
5 are provided with push-out force detectors 10a, 11a, 12a, 13a for detecting the push-out force to the outside in the left-right direction A, and rising portions 15b and bearings formed at the outer end of each intermediate bed 15 in the front-rear direction B. 10, 11, 12, 13
Thrust force detectors 10b and 11 for detecting the thrust force in the front-rear direction B received by the left and right rollers 4 and 5.
b, 12b, 13b are provided, and the pushing force detectors 10a, 11a, 12a, 13a are provided on the bed 18.
Cylinder devices 10c, 11c, 12c, 13c are provided to push in and support the intermediate bed 15 inward in the left-right direction A against the pushing force transmitted via the.

Further, the pushing force detectors 10a, 11a,
12a, 13a and thrust force detectors 10b, 11
b, 12b, 13b, and each cylinder device 10c, 11c, 12c, 1 based on the detected signal.
A control device 17 for controlling the pushing position of 3c is provided.

Next, the operation of the above embodiment will be described.

For example, distortion occurs in the rotary kiln 1,
Explaining the case where the pushing force to the outside is increased with respect to the left roller 4 supporting the rotary kiln 1, the left front bearings 10 and 11 supporting the left roller 4 receive the pushing force toward the outside. Become. Although the left and right front and rear bearings 10 and 11 are fastened to the intermediate bed 15 by bolts 19, the left and right front and rear bearings 10 and 11 try to move outward due to a large pushing force, and the pushing force is applied to the intermediate bed 15. And left and right front and rear bearings 10, 11
A front-rear pushing force detector 10a on the left side provided between
11a, each of the pushing force detectors 10a,
The value detected by 11a is replaced with a signal and sent to the control device 17. Further, in the right roller 5 supporting the rotary kiln 1, the pushing force is weakened, like the left roller 4, because the pushing force that pushes the right and left front bearings 12 and 13 outward in the left-right direction A is the right forward and backward pushing force. The values detected by the force detectors 12a and 13a are converted into signals and sent to the control device 17.

Then, each of the detected values of the pushing force is sent to the controller 17, and the front and rear bearings 10, 11 on the left side are sent.
Via the control device 17 so that the sum of the detection values of the push-out force detectors 10a and 11a and the sum of the detection values of the push-out force detectors 12a and 13a of the front and rear bearings 12 and 13 on the right side are equal.
Adjusting the pushing positions of the left and right front and rear cylinder devices 10c and 11c and the right and left front and rear cylinder devices 12c and 13c (in this case, pulling in the left and right front and rear cylinders 10c and 11c and pushing out the right and left front and rear cylinders 12c and 13c), Move the movable intermediate beds 15 respectively,
The load of the rotary kiln 1 applied to the left and right rollers 4 and 5 is equalized to the left and right. At this time, the left front cylinder 10c and the left rear cylinder 11c are pulled in substantially evenly, and the right front cylinder 12c and the right rear cylinder 13c are pushed out substantially evenly.

In addition, for example, when the rotary kiln 1 is distorted and the rotation center Y of the rotary kiln 1 and the rotation center Z of the left roller 4 collapse as shown in FIG. When the rotary kiln 1 rotates to the right as indicated by the arrow and the rotary kiln 1 rotates to the left as indicated by the arrow, the rotary kiln 1 moves backward X in the front-back direction B.
Received a thrust force to move toward the rear,
Further, the left roller 4 receives the thrust force in the forward direction X ′ in the front-rear direction B and tries to move forward. That is, the left roller 4 and the front-rear bearing 1 on the left side supporting the roller.
0 and 11 will receive thrust force to the front X '.

The left and right front and rear bearings 10 and 11 are arranged on the intermediate bed 15, and the thrust force acting on the front and rear bearings 10 and 11 in the forward direction X'is set to the intermediate bed 1.
5 and the front bearing 10 on the left side, the front thrust force detector 10b on the left side detects the detection value. The detection value detected by the thrust force detector 10b is converted into a signal and sent to the controller 17. . At this time, the thrust force does not act on the left rear thrust force detector 11b, but the detection value detected by the left rear thrust force detector 11b is also converted into a signal and sent to the control device 17.

Then, the control device 17 controls the left and right front and rear cylinder devices 10c and 1c so that the thrust force detection values received by the left front bearing 10 and the left rear bearing 11 become equal.
1c is adjusted (in this case, the left front cylinder 10c is pulled in and the left rear cylinder 11c is pushed out), and the horizontally movable intermediate beds 15 are moved to rotate the rotary kiln 1 in FIG. The center Y and the rotation center Z of the left roller 4 are made parallel to each other so that thrust force is not generated. At this time, the front cylinder 10 on the left side
The pulling-in of c and the pushing-out of the left rear cylinder 11c are performed substantially evenly.

When the rotary kiln 1 is distorted and the rotation center Y of the rotary kiln 1 and the rotation center of the right roller 5 are not parallel to each other, the right-and-left thrust force detector, like the left roller 4, is detected. The thrust force is detected by 12b and 13b, and the pushing positions of the front and rear cylinder devices 12c and 13c on the right side are set via the control device 17 so that the thrust force detection values of the right front bearing 12 and the right rear bearing 13 become equal. The rotation center Y of the rotary kiln 1 and the rotation center Z of the right roller 5 are made parallel to each other so that the thrust force is not generated, like the left roller 4 in FIG.

When the load of the rotary kiln 1 on the left and right rollers 4, 5 is equalized left and right, the rotation center Y of the rotary kiln 1 and the rotation center Z of the left and right rollers 4, 5 are set. The operation is performed in parallel with each other so as to prevent the thrust force from being generated at regular intervals.

Therefore, the positions of the rollers 4 and 5 can be adjusted accurately at all times, the adjustment can be performed safely during the work, and it is not necessary to stop the operation of the rotary kiln 1. Efficiency can be maintained at a high level.

The present invention is not limited to the above-mentioned embodiments, and it goes without saying that various modifications can be made without departing from the gist of the present invention.

[0025]

According to the present invention, the pushing force of the left and right rollers toward the outside in the left and right direction is detected by the left and right front and rear pushing force detectors, and the sum of the pushing force detection values of the left and right bearings and the pushing force of the right and left bearings are pushed. Adjust the pushing positions of the left and right front and rear cylinder devices through the control unit so that the sum of the force detection values becomes equal, and make the load of the rotary kiln even left and right, and adjust the thrust force of the left and right rollers in the front and rear direction. The thrust force detector detects the thrust force of the right and left front and rear bearings by adjusting the pushing position of the left and right cylinder devices through the control device so that the thrust force detection values of the left and right front and rear bearings are equal. The pushing positions of the front and rear cylinder devices on the right side are adjusted through a control device so that the rotation center of the rotary kiln and the rotation centers of the left and right rollers are parallel to each other. By performing an operation that does not generate thrust force, the position of the roller can be automatically and accurately adjusted to an appropriate position, and the position of the roller can be adjusted during operation of the rotary kiln. Position adjustment can be performed safely, and various excellent effects can be obtained, such as maintaining high working efficiency.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a roller position adjusting device of the present invention.

FIG. 2 is a vertical sectional front view of the bearing of the right roller in FIG.

FIG. 3 is a perspective view showing a state where the center of rotation of the left roller and the center of rotation of the rotary kiln are out of parallel.

FIG. 4 is a perspective view showing an entire rotary kiln.

FIG. 5 is a plan view showing an embodiment of a conventional roller position adjusting device.

[Explanation of symbols]

 1 Rotary Kiln 2 Tire 3, 3'Rotary Shaft 4 Left Roller 5 Right Roller 10 Left Front Bearing 11 Left Rear Bearing 12 Right Front Bearing 13 Right Rear Bearing 10a Left Front Extrusion Force Detector 11a Left Rear Extrusion Force Detector 12a Right Front Pushing force detector 13a Right rear pushing force detector 10b Left front thrust force detector 11b Left rear thrust force detector 12b Right front thrust force detector 13b Right rear thrust force detector 10c Left front cylinder device 11c Left rear cylinder device 12c Right front cylinder device 13c Right rear cylinder device 14 Hydraulic cylinder 15 Intermediate bed 17 Control device 18 Bed A Left-right direction B Front-back direction

Claims (2)

[Claims] 1. A left roller and a right roller having a rotary shaft substantially parallel to an axis of the rotary kiln for supporting tires fitted over the rotary kiln at required intervals in the longitudinal direction from both lower left and right sides, and The left and right bearings arranged at the front and rear positions of the rotary shaft of the left roller, and the right front and rear bearings arranged at the front and rear positions of the rotary shaft of the right roller are arranged on the bed. A horizontally movable intermediate bed is provided between each bearing and the bed, and an extrusion force detector that detects the outward outward force of the bearing is provided between the intermediate bed and the bearing. At the same time, a thrust force detector for detecting the thrust force in the front-rear direction received by the bearings of the left and right rollers is provided, and the right and left sides are opposed to each other on the bed against the pushing force transmitted through the pushing force detector. A left front and rear cylinder device and a right front and rear cylinder device for pushing and supporting the intermediate bed toward the inside in the direction are provided, and the pushing position of each cylinder device is further determined based on the signals detected by each of the pushing force detectors and the thrust force detectors. A roller position adjusting device for a rotary kiln, comprising a control device for controlling. 2. A pushing force detector detects each of the pushing forces of the left and right front and rear bearings supporting the left and right rollers toward the outside in the left-right direction, and the sum of the detected pushing force values of the left and right front and rear bearings is detected. Adjust the pushing positions of the left and right front and rear cylinder devices via the control unit so that the sum of the pushing force detection values of the right and left front bearings becomes equal, and thrust in the front and rear direction received by the left and right front and rear bearings of the left and right rollers. Each force is detected by the thrust force detector, and the pushing positions of the left and right cylinder devices are adjusted through the control unit so that the detected thrust force values for the front and rear of the left and right front and rear bearings are equal. A contract characterized in that the pushing positions of the right and left cylinder devices are adjusted via the control device so that the thrust force detection values before and after the bearing become equal. A roller position adjusting method using the roller position adjusting device for a rotary kiln according to claim 1.