Measuring Auxiliary Tool for Installation and Adjustment of Rotary Kiln Carrying Rollers and Its Measuring Method

Abstract

The present invention provides a measuring auxiliary tool and a measuring method for the installation and adjustment of supporting rollers of a rotary kiln, which can conveniently and accurately detect the parallelism between the center line of the roller surface of the supporting roller and the center line of the kiln body. The center line of the roller surface of the supporting roller is measured by the upper clamping plate, the lower clamping plate and the digital level of the detection plate. When the upper clamping plate and the lower clamping plate are in contact with the roller surface of the supporting roller at the same time and the digital level shows horizontal, it indicates that the center line of the supporting roller is parallel to the center line of the kiln body. Then, by observing the position of the vernier caliper, it is confirmed whether the center lines of the front and rear supporting rollers are collinear. If the numbers on the front and rear vernier calipers are the same, it indicates that the center lines of the front and rear supporting rollers are collinear, otherwise they are not collinear. However, it can be adjusted according to the difference between the front and rear vernier calipers, which can effectively solve the problem of installation and adjustment deviation of the supporting rollers of a large rotary kiln.

Description

Technical Field

[0001] The invention relates to the technical field of rotary kiln installation, and in particular to a measuring aid for installation and adjustment of a rotary kiln support wheel and a measuring method thereof. Background Art

[0002] Rotary kiln is a large rotary equipment composed of gas flow, fuel combustion, heat transfer and material movement. Figure 1 As shown, the rotary kiln is mainly composed of a kiln body 1, a gear ring 2, a support wheel 3, a support ring 4, etc. The support ring 4 and the gear ring 2 are fixed on the kiln body 1, and the support ring 4 and the kiln body 1 are supported on the support wheel 3. During normal operation, the motor drives the gear ring 2 and the kiln body 1 to rotate, and the support ring 4 on the kiln body 1 rotates in contact with the support wheel 3. Therefore, the support wheel 3 not only supports the kiln body in the entire system, but also plays a limiting role to ensure the smooth rotation of the kiln body. Although rotary kilns are widely used in various industries, the following problems often occur:

[0003] 1. The rotary kiln generates axial force on the kiln body 1 due to the deviation of the center line of the supporting wheel 3, which causes the kiln body to move. It is necessary to check whether the center line of the supporting wheel is parallel to the kiln body;

[0004] 2. The rotary kiln generates axial force on the kiln body 1 due to the deviation of the center lines of the front and rear supporting wheels 3, which causes the problem of movement. It is necessary to check whether the center lines of the front and rear supporting wheels 3 are collinear;

[0005] 3. Generally, the installation of new rollers is based on the positioning of the center line of the base. However, due to the low accuracy, it is impossible to ensure that the installation is in place at one time. Often, multiple adjustments are required later, which is time-consuming and labor-intensive.

[0006] Since the kiln body 1 and the materials in the kiln are heavy, the axial force generated during the movement is very large, making the equipment installation, commissioning and maintenance difficult. Therefore, the accuracy of the installation and detection of the support wheel 3 is particularly important. Summary of the invention

[0007] An object of the present invention is to provide a measuring aid for installing and adjusting a rotary kiln support wheel, which can conveniently and accurately detect the parallelism between the center line of the support wheel roller surface and the center line of the kiln body.

[0008] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a measuring auxiliary tool for installing and adjusting a rotary kiln supporting wheel, a screw rod is arranged on a base, the rod core of the screw rod is arranged in a plumb direction, a slider is threadedly connected to the screw rod, a detection plate is arranged on the slider, the detection plate is Y-shaped as a whole, including a fixed plate whose length direction is horizontal, a digital level is arranged on the fixed plate, an upper clamping plate and a lower clamping plate arranged at an angle extend outward from one end of the fixed plate, and a vernier caliper is also arranged on the fixed plate.

[0009] Another object of the present invention is to provide a measuring method for installing and adjusting a supporting roller of a rotary kiln, which can accurately detect the parallelism between the center line of the roller surface of the supporting roller and the center line of the kiln body.

[0010] To achieve the above object, the technical solution adopted by the present invention is as follows: a measuring method for a measuring accessory for installing and adjusting a supporting roller of a rotary kiln, comprising the following steps:

[0011] A) Adjust the height of the slider by driving the screw to rotate circumferentially through the motor according to the height of the supporting roller, place the detection plate in the card slot of the connecting plate, and push the detection plate close to the supporting roller until the detection surfaces of the upper clamping plate and the lower clamping plate are in contact with the surface of the supporting roller;

[0012] B) Fine-tune the position of the detection plate so that the digital level shows horizontal. At this time, it is ensured that the extension line of the symmetry center line passes through the center of the supporting roller when measuring any supporting roller;

[0013] C) Set up the total station according to the center point of the kiln body base, and use the total station to view the data x and y on the vernier calipers at the front and rear supporting rollers;

[0014] D) Guide the installation and adjustment of the position of the supporting roller according to the difference between x and y to ensure that the roller surfaces of the front and rear two supporting rollers are collinear.

[0015] In the above solution, the center line of the roller surface of the supporting roller is measured by the upper clamping plate, the lower clamping plate and the digital level of the detection plate. When the upper clamping plate and the lower clamping plate are in contact with the roller surface of the supporting roller at the same time and the digital level shows horizontal, it indicates that the center line of the supporting roller is parallel to the center line of the kiln body. Then, by observing the position of the vernier caliper, it is confirmed whether the center lines of the front and rear supporting rollers are collinear. If the numbers on the front and rear vernier calipers are the same, it indicates that the center lines of the front and rear supporting rollers are collinear, otherwise they are not collinear. However, it can be adjusted according to the difference between the front and rear vernier calipers, which can effectively solve the problem of installation and adjustment deviation of the supporting rollers of large rotary kilns. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of a rotary kiln;

[0017] Figure 2 、 Figure 3 is a schematic overall structural diagram of the installation accessory;

[0018] Figure 4 is a schematic structural diagram of the detection plate;

[0019] Figure 5 is a schematic diagram of the use state of the installation accessory;

[0020] Figure 6 is a schematic measurement diagram. DETAILED DESCRIPTION OF THE INVENTION

[0021] As Figures 2 - 4As shown in the figure, a measuring auxiliary tool for the installation and adjustment of a rotary kiln supporting roller. A screw 20 is arranged on a base 10, and the core of the screw 20 is arranged in the vertical direction. A slider 30 is threadedly connected to the screw 20, and a detection plate 40 is arranged on the slider 30. The detection plate 40 is integrally in a Y shape, including a fixed plate 41 with its length direction in the horizontal direction. A digital level 42 is arranged on the fixed plate 41. One end of the fixed plate 41 extends outward with an upper clamping plate 43 and a lower clamping plate 44 arranged in an angular manner. A vernier caliper 45 is also arranged on the fixed plate 41. Since the deviation of the outer circle machining surface of the supporting roller 3 in supporting is small and can be ignored, during the installation and debugging process, if the roller surface of a single supporting roller 3 can be effectively detected to be parallel to the center line of the kiln body 1, then the installation position of the supporting roller 3 is more accurate. Similarly, if it is detected that the roller surfaces of the front and rear supporting rollers 3 are collinear, then the center lines of the front and rear supporting rollers 3 are also collinear. Therefore, the center line of the roller surface of the supporting roller 3 is measured by the upper clamping plate 43, the lower clamping plate 44 and the digital level 42 of the detection plate 40. When the upper clamping plate 43 and the lower clamping plate 44 are simultaneously in contact with the roller surface of the supporting roller 3 and the digital level 42 shows horizontal, it indicates that the center line of the supporting roller 3 is parallel to the center line of the kiln body 1. Then, by observing the position of the vernier caliper 45, it is confirmed whether the center lines of the front and rear supporting rollers 3 are collinear. If the numbers on the front and rear vernier calipers 45 are the same, it indicates that the center lines of the front and rear supporting rollers 3 are collinear, otherwise they are not collinear. However, it can be adjusted according to the difference between the front and rear vernier calipers 45, which can effectively solve the problem of installation and adjustment deviation of the supporting rollers 3 of a large rotary kiln.

[0022] Since people observe the digital level 42 from above the fixed plate 41, for the convenience of observation, the plate surface of the fixed plate 41 is arranged in the vertical direction. The digital level 42 is fixed on the upper surface of the fixed plate 41. A strip-shaped hole 411 is opened in the middle of the fixed plate 41 along its length direction. The vernier caliper 45 is arranged in the strip-shaped hole 411. The digital level 42 is more accurate than the traditional level, further reducing errors.

[0023] Preferably, the upper clamping plate 43 and the lower clamping plate 44 are symmetrically arranged with respect to the horizontal center line of the fixed plate 41. The included angle between the upper clamping plate 43 and the lower clamping plate 44 is an obtuse angle. The detection surfaces of the upper clamping plate 43 and the lower clamping plate 44 can be simultaneously in contact with the outer surface of the supporting roller 3. The fixed plate 41, the upper clamping plate 43 and the lower clamping plate 44 are located in the same vertical plane. The three main surfaces (surfaces A, B, and C in the figure) on the detection plate 40 need to be machined and polished, with a surface roughness of 6.3, and the straightness and flatness requirements are both 0.05; Surfaces A and B are mainly in contact with the circular roller surface, and surface C fixes the digital level 42.

[0024] For easy storage, the detection board 40 and the slider 30 are set to be detachable. A connecting plate 31 is fixedly connected to the slider 30. The plate surface of the connecting plate 31 is located in the horizontal plane. One end of the connecting plate 31 extends outward, and a clamping groove 311 is formed on the upper plate surface of the suspended end. The clamping groove 311 is a U-shaped groove with an upward opening, and the groove length is perpendicular to the length direction of the connecting plate 31. The lower plate edge of the fixing plate 41 is clamped in the clamping groove 311 to form a detachable connection. The connecting plate 31 can move along the groove length direction of the clamping groove 311 to adjust the position of the supporting wheel 3.

[0025] A motor is arranged inside the base 10, and the motor drives the screw rod 20 to rotate circumferentially. The rotation of the screw rod 20 is realized by the driving pulley of the DC motor inside the base 10, which is simple and fast.

[0026] Both sides of the vernier caliper 45 are engraved with scales, so that the device can be well used when measuring the left and right supporting wheels 3, avoiding the situation that the device needs to be inverted when the position of the supporting wheel 3 is reversed, and the reading of the vernier caliper 45 is more accurate than that of an ordinary steel ruler.

[0027] Such as Figure 5 、 Figure 6 As shown in

[0028] A) Adjust the height of the slider 30 by driving the screw rod 20 to rotate circumferentially according to the height of the supporting wheel 3. Place the detection board 40 in the clamping groove 311 of the connecting plate 31, and push the detection board 40 close to the supporting wheel 3 until the detection surfaces of the upper clamping plate 43 and the lower clamping plate 44 are in contact with the surface of the supporting wheel 3.

[0029] B) Fine-tune the position of the detection board 40 so that the digital level 42 shows horizontal. At this time, it is ensured that the extension line of the symmetry center line passes through the center of the supporting wheel 3 when measuring any supporting wheel 3 with the detection board 40.

[0030] C) Set up the total station according to the center point of the base of the kiln body 1, and use the total station to check the data x and y on the vernier caliper 45 at the front and rear supporting wheels 3.

[0031] D) Guide the installation and adjustment of the position of the supporting wheel 3 according to the difference between x and y to ensure that the wheel surfaces of the front and rear two supporting wheels 3 are collinear.

[0032] The above-mentioned measuring accessory is applied to the installation and daily maintenance of large rotary kilns. The measurement is simple, the error control accuracy is high, effectively solves the abnormal creeping situation of the rotary kiln, and ensures the stable performance of the equipment.

Claims

1. A measuring auxiliary tool for the installation and adjustment of rotary kiln supporting rollers, characterized in that: A screw rod (20) is arranged on a base (10), the rod core of the screw rod (20) is arranged in the vertical direction, a slider (30) is threadedly connected to the screw rod (20), and a detection plate (40) is arranged on the slider (30). The detection plate (40) is integrally Y-shaped, including a fixed plate (41) with its length direction in the horizontal direction. A digital level (42) is arranged on the fixed plate (41), and one end of the fixed plate (41) extends outwards with an upper clamping plate (43) and a lower clamping plate (44) arranged in an angular manner. A vernier caliper (45) is also arranged on the fixed plate (41).

2. The measuring auxiliary tool for the installation and adjustment of rotary kiln supporting rollers according to claim 1, characterized in that: The plate surface of the fixed plate (41) is arranged in the vertical direction, the digital level (42) is fixed on the upper surface of the fixed plate (41), a strip-shaped hole (411) is opened in the middle of the fixed plate (41) along its length direction, and the vernier caliper (45) is arranged in the strip-shaped hole (411).

3. The measuring auxiliary tool for the installation and adjustment of rotary kiln supporting rollers according to claim 1, characterized in that: The upper clamping plate (43) and the lower clamping plate (44) are symmetrically arranged with respect to the horizontal center line of the fixed plate (41), and the included angle between the upper clamping plate (43) and the lower clamping plate (44) is an obtuse angle.

4. The measuring auxiliary tool for the installation and adjustment of rotary kiln supporting rollers according to claim 3, characterized in that: The fixed plate (41), the upper clamping plate (43) and the lower clamping plate (44) are located in the same vertical plane.

5. The measuring auxiliary tool for the installation and adjustment of rotary kiln supporting rollers according to claim 1, characterized in that: A connecting plate (31) is fixedly connected to the slider (30), the plate surface of the connecting plate (31) is in the horizontal plane, one end of the connecting plate (31) extends outwards and the upper plate surface of the suspended end is provided with a clamping groove (311). The clamping groove (311) is in the shape of a U-shaped groove with an upward opening and the groove length is perpendicular to the length direction of the connecting plate (31). The lower plate edge of the fixed plate (41) is clamped in the clamping groove (311) to form a detachable connection.

6. The measuring auxiliary tool for the installation and adjustment of rotary kiln supporting rollers according to claim 1, characterized in that: A motor is arranged in the base (10), and the motor drives the screw rod (20) to rotate circumferentially.

7. The measuring auxiliary tool for the installation and adjustment of rotary kiln supporting rollers according to claim 2, characterized in that: Both sides of the vernier caliper (45) are engraved with scales.

8. The measuring method of the measuring auxiliary tool for the installation and adjustment of rotary kiln supporting rollers according to any one of claims 1-7, characterized in that: It includes the following steps: A) Adjust the height of the slider (30) by driving the screw rod (20) to rotate circumferentially through the motor according to the height of the supporting roller (3). Place the detection plate (40) in the clamping groove (311) of the connecting plate (31), and push the detection plate (40) close to the supporting roller (3) until the detection surfaces of the upper clamping plate (43) and the lower clamping plate (44) are in contact with the surface of the supporting roller (3); B) Fine-tune the position of the detection plate (40) so that the digital level (42) shows horizontal. At this time, it is ensured that the extension line of the symmetry center line passes through the center of the idler wheel (3) when measuring any idler wheel (3) with the detection plate (40). C) Set up the total station according to the center point of the base of the kiln body (1), and use the total station to check the readings on the vernier calipers (45) at the front and rear idler wheels (3). D) Guide the installation and adjustment of the position of the idler wheel (3) according to the reading difference on the vernier calipers (45) to ensure that the wheel surfaces of the front and rear idler wheels (3) are collinear.

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