Magnetic device for measuring the axis position of rotary kiln support wheel and its use method

Abstract

The present invention relates to a magnetic device for measuring the axial center position of a rotary kiln support roller and a method for using the device. The device comprises a detection support rod, a detection platform structure disposed at the end of the detection support rod, and a detection positioning magnet disposed on the upper portion of the detection platform structure. The detection platform structure is in the shape of an elongated strip; the detection positioning magnets are provided in two numbers and are disposed at the outer ends of the upper end surface of the detection platform structure; the detection platform structure is in the shape of a triangle, and the detection positioning magnets are provided in three numbers and are disposed at the outer top corner positions of the upper end surface of the detection platform structure. The device has a simple structure and is easy to use, and can accurately detect the position of the axial center position of the support roller and the wheel belt. The friction coefficient between the support roller and the wheel belt is reduced, thereby reducing the sliding speed of the kiln body. It is more convenient, quicker, and more accurate than the commonly used method of adjusting the skewed support roller.

Description

Technical Field

[0001] The present invention relates to a magnetic device for measuring the axis center position of a rotary kiln supporting wheel, and is a device and a method for using the device that can detect the specific axis center position of the rotary kiln supporting wheel dynamically by adsorbing the magnetic device near the axis center of the supporting wheel. Background Art

[0002] Cement rotary kiln is an important equipment in cement clinker production line. The status of rotary kiln is related to the quality and output of cement production line, and even to whether the kiln can operate normally.

[0003] The rotary kiln system consists of six parts: the cylinder, support device, transmission device, hydraulic wheel device, kiln head and kiln tail. The kiln body of the rotary kiln is tilted to the horizontal. The entire kiln body is supported by the supporting wheel device and rotates at a certain speed during operation. The inside of the rotary kiln is lined with bricks and materials.

[0004] The kiln barrel is the main body of the rotary kiln. Its diameter is determined by the cement plant's designed production capacity and process requirements. It is rolled from steel plate. The barrel is mounted at an angle on a support structure, with three tires installed along its length. These tires bear the weight of the rotating components of the kiln barrel, the materials, and the kiln lining, and transmit this weight to the support structure. The support structure (tire-support roller assembly) is designed to bear the weight of the rotary kiln barrel and the materials within, ensuring smooth rotation of the equipment.

[0005] When a rotary kiln is stationary and resting on supporting rollers, the axial force of the kiln's weight is less than the friction between the supporting rollers and the tyres, preventing the kiln from sliding downward. Once the kiln is operating, the tyres experience not only the downward force generated by the kiln's own weight but also a circumferential force, perpendicular to and tangential to the tyre's circumferential surface, generated by the large ring gear on the kiln. This circumferential force is used to overcome the friction torque in the supporting roller bearings. The resultant of these two forces is calculated to be approximately 0.0255-0.0507G (G is the kiln's own weight), which is only 1 / 2-1 / 8 of the friction force. Therefore, in this case, there is no significant relative sliding between the tyres and supporting rollers. However, for any newly installed rotary kiln, the centerlines of all the supporting rollers are relatively parallel to the kiln's centerline. Consequently, the kiln will slowly slide downward once the kiln is operating. This is due to elastic deformation at the contact surface between the tyres and supporting rollers, causing elastic sliding. To control the upward and downward movement of the kiln body, the key is to change the friction coefficient between the supporting roller and the tyre, thereby reducing the downward movement of the kiln body. Currently, the most common method is to adjust the supporting roller skew. The magnitude of the supporting roller skew directly affects the force exerted by the supporting roller on the kiln. To understand the skew of the supporting roller shaft, determining the position of the supporting roller axis is crucial. Summary of the Invention

[0006] The purpose of the present invention is to provide a magnetic device for measuring the axis center position of a rotary kiln supporting roller and a method for using the device. By adsorbing the magnetic device at the approximate position of the supporting roller axis, the spatial position of the supporting roller axis can be determined dynamically through data changes.

[0007] The technical solution adopted by the present invention to solve its technical problem is: a magnetic attraction device for measuring the axial center position of a rotary kiln support wheel, comprising a detection support rod, a detection platform structure arranged at the end of the detection support rod, and a detection positioning magnet arranged on the upper part of the detection platform structure, wherein the detection platform structure is in the shape of an elongated strip; the detection positioning magnets are provided in two and are arranged at the outer end of the upper end surface of the detection platform structure; the detection platform structure is in the shape of a triangle, and the detection positioning magnets are provided in three and are arranged at the outer top corner position of the upper end surface of the detection platform structure.

[0008] A method for using a magnetic device for measuring the axis center position of a rotary kiln roller, characterized in that: after the magnetic device is assembled, a measuring ruler is assembled on a fixed rod, a maintenance worker is arranged on site to open the roller cover, and a horizontal measuring point is marked on the roller cover in the horizontal position direction of the roller axis. The vertical measuring point is marked on the roller cover in the vertical position direction of the roller axis using the same method. After the measuring point is marked, the magnetic device is adsorbed to the approximate axis center of the roller, the position of the measuring ruler is adjusted to be on the same plane as the horizontal (vertical) measuring point, the measuring ruler is clamped in the direction of the horizontal (vertical) measuring point, the horizontal (vertical) data change of the measuring ruler is visually observed, the maximum value Hmax and the minimum value Hmin of the measuring ruler data change of the measuring point position are read, and the maximum value Hmax and the minimum value Hmin are recorded, and the average value of the value from the roller axis to the horizontal mark measuring point is calculated. The same method is used to measure and calculate the average value of the roller axis to the vertical mark measuring point Subsequently, measure the distances H2 and V2 from the horizontal (vertical) mark measuring point on the roller cover to the horizontal reference line and the vertical reference point: paste a horizontal reference target on the wall at the head and tail of the kiln, set up the total station on the horizontal reference line on one side, use a tape measure to set the distance between the horizontal mark measuring point on the roller cover and the horizontal reference line, move the tape measure in the direction of the horizontal reference line, read the minimum value Hmin of the tape measure scale change with the total station, and record the minimum value Hmin, and calculate the distance H2 from the horizontal mark measuring point to the horizontal reference line (H2 = Hmin); drive a vertical reference pin into each basic platform (the vertical reference pin is the vertical reference point), set up a level on each platform, place the Ingwa ruler on the vertical reference pin, read the distance Va from the eyepiece plane of the level to the vertical reference point, place the initial position of the tape measure at the vertical mark measuring point on the roller cover, let the tape measure droop naturally, read the minimum value Vbmin of the tape measure scale change with the level, and record the minimum value Vbmin, and calculate the distance from the vertical mark measuring point to the vertical reference point

[0009] At this point, the distances H and V from the roller axis to the horizontal reference line and vertical reference point are calculated as H = H1 + H2, and V = V2 - V1 (if the vertical mark measuring point is below the roller axis, V = V1 + V2). Repeat the measurement operation for each roller axis to obtain the distance from each roller axis to the horizontal reference line and vertical reference point. You can then compare the data to determine the actual spatial position of each roller axis.

[0010] The beneficial effects of the present invention are: The device has a simple structure and is easy to use. It can accurately detect the position of the axis of the supporting roller and the tyre. It reduces the friction coefficient between the supporting roller and the tyre, thereby reducing the sliding speed of the kiln body. It is more convenient, faster, and more accurate than the commonly used method of adjusting the skewed supporting roller.

[0011] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic diagram of the device structure is shown in FIG.

[0013] Figure 2 This is a structural diagram of another embodiment of the device.

[0014] In the figure: 1. Detection positioning magnet, 2. Detection platform structure, 3. Detection support rod. DETAILED DESCRIPTION

[0015] The terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end" used in this application to indicate positions or locations are based on the positions or locations shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0016] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0017] Example 1: Figure 1-2As shown, a magnetic attraction device for measuring the axial position of a rotary kiln supporting wheel comprises a detection support rod 3, a detection platform structure 2 provided at the end of the detection support rod, and a detection positioning magnet 1 provided on the upper part of the detection platform structure. The detection platform structure is in the shape of an elongated strip; the detection positioning magnets are provided in two and are provided at the outer ends of the upper end surface of the detection platform structure; the detection platform structure is in the shape of a triangle, and the detection positioning magnets are provided in three and are provided at the outer vertex positions of the upper end surface of the detection platform structure.

[0018] A method for using a magnetic device for measuring the axis center position of a rotary kiln roller. After the magnetic device is assembled, a measuring ruler is mounted on a fixed rod. A maintenance worker is arranged on site to open the roller cover and mark a horizontal measuring point on the roller cover in the horizontal direction of the roller axis. The vertical measuring point is marked on the roller cover in the vertical direction of the roller axis using the same method. After the measuring point is marked, the magnetic device is adsorbed to the approximate axis center of the roller. The position of the measuring ruler is adjusted to be on the same plane as the horizontal (vertical) measuring point. The measuring ruler is clamped in the direction of the horizontal (vertical) measuring point. The horizontal (vertical) data change of the measuring ruler is visually observed. The maximum value Hmax and the minimum value Hmin of the measuring ruler data change at the measuring point position are read and recorded. The maximum value Hmax and the minimum value Hmin are calculated to obtain the average value of the value from the roller axis to the horizontally marked measuring point. The same method is used to measure and calculate the average value of the roller axis to the vertical mark measuring point Subsequently, measure the distances H2 and V2 from the horizontal (vertical) mark measuring point on the roller cover to the horizontal reference line and the vertical reference point: paste a horizontal reference target on the wall at the head and tail of the kiln, set up the total station on the horizontal reference line on one side, use a tape measure to set the distance between the horizontal mark measuring point on the roller cover and the horizontal reference line, move the tape measure in the direction of the horizontal reference line, read the minimum value Hmin of the tape measure scale change with the total station, and record the minimum value Hmin, and calculate the distance H2 from the horizontal mark measuring point to the horizontal reference line (H2 = Hmin); drive a vertical reference pin into each basic platform (the vertical reference pin is the vertical reference point), set up a level on each platform, place the Ingwa ruler on the vertical reference pin, read the distance Va from the eyepiece plane of the level to the vertical reference point, place the initial position of the tape measure at the vertical mark measuring point on the roller cover, let the tape measure droop naturally, read the minimum value Vbmin of the tape measure scale change with the level, and record the minimum value Vbmin, and calculate the distance from the vertical mark measuring point to the vertical reference point

[0019] At this time, the distances H and V from the roller axis to the horizontal reference line and the vertical reference point are calculated, H=H1+H2, V=V2-V1 (if the vertical mark measuring point is below the roller axis, V=V1+V2). Repeat the measurement operation for each roller axis to obtain the distance from each roller axis to the horizontal reference line and the vertical reference point. The actual spatial position of each roller axis can be obtained by comparing the data.

[0020] This device has a simple structure and is easy to use. It can accurately detect the position of the axis of the supporting roller and the tyre. It reduces the friction coefficient between the supporting roller and the tyre, thereby reducing the sliding speed of the kiln body. It is more convenient, faster and more accurate than the commonly used method of adjusting the skewed supporting roller.

[0021] The above embodiments are merely descriptions of preferred implementations of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineers and technicians in this field should fall within the scope of protection determined by the claims of the present invention.

[0022] The parts not involved in the present invention are the same as the existing technology or can be implemented by using the existing technology.

Claims

1. A method for using a magnetic device for measuring the axis position of a rotary kiln support wheel, characterized in that: A magnetic device for measuring the axis center position of a rotary kiln supporting roller is used, which comprises: a detection support rod, a detection platform structure arranged at the end of the detection support rod, and a detection positioning magnet arranged on the upper part of the detection platform structure; wherein, the detection platform structure is in the shape of an elongated strip, and the detection positioning magnets are provided in two and are arranged at the outer end of the upper end face of the detection platform structure; or, the detection platform structure is in the shape of a triangle, and the detection positioning magnets are provided in three and are arranged at the outer top angle position of the upper end face of the detection platform structure; after assembling the magnetic device, a measuring ruler is fitted to the detection support rod, the supporting roller cover is opened, and a horizontal measuring point is marked on the supporting roller cover in the horizontal position direction of the supporting roller axis, and a vertical measuring point is marked on the supporting roller cover in the vertical position direction of the supporting roller axis using the same method, and the measuring point is marked Finally, the magnetic device is adsorbed to the axis of the supporting roller, and the position of the measuring ruler is adjusted to the same plane as the horizontal measuring point or the vertical measuring point. Then, the measuring ruler is clamped in the direction of the horizontal measuring point or the vertical measuring point, and the horizontal data or vertical data changes of the measuring ruler are visually observed. Among them, the maximum value Hmax and the minimum value Hmin of the measuring ruler data change at the horizontal measuring point position are read, and the maximum value Hmax and the minimum value Hmin are recorded. The average value H1 from the axis of the supporting roller to the horizontal measuring point is calculated based on the maximum value Hmax and the minimum value Hmin. The average value V1 from the axis of the supporting roller to the vertical measuring point is measured and calculated using the same method. Subsequently, the distance H2 from the horizontal measuring point on the supporting roller cover to the horizontal reference line is measured, and the distance from the vertical measuring point on the supporting roller cover to the vertical is measured. The distance V2 from the reference point; paste horizontal reference targets on the walls of the kiln head and kiln tail, set up the total station on the horizontal reference line on one side, use a tape measure to measure the distance between the horizontal measuring point on the roller cover and the horizontal reference line, move the tape measure in the direction of the horizontal reference line, read the minimum value Xmin of the tape measure scale change with the total station, and record the minimum value Xmin, calculate the distance H2 from the horizontal measuring point to the horizontal reference line, where H2 = Xmin; drive a vertical reference pin into each basic platform, where the vertical reference pin is the vertical reference point, set up a level on each platform, place the Ingwa ruler on the vertical reference pin, read the distance Va from the level eyepiece plane to the vertical reference point, and place the initial position of the tape measure on the vertical reference pin on the roller cover. At the straight measuring point, let the tape measure droop naturally, read the minimum value Vbmin of the tape measure scale change with the level, and record the minimum value Vbmin. According to the distance Va from the level eyepiece plane to the vertical reference point and the minimum value Vbmin of the tape measure scale change read by the level, calculate the distance V2 from the vertical measuring point to the vertical reference point. At this time, calculate the distances H and V from the roller axis to the horizontal reference line and the vertical reference point respectively, H=H1+H2, V=V2-V1. If the vertical measuring point is below the roller axis, then V=V1+V2. Repeat the measurement operation for each roller axis to obtain the distance from each roller axis to the horizontal reference line and vertical reference point. Finally, compare the data to obtain the actual spatial position of each roller axis.

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