Equipment for measuring ovality of rotary kiln

Abstract

The utility model discloses a rotary kiln ovality measuring device, which comprises a measuring support, a movable rod body, a sleeve and a displacement sensor, the movable rod body is slidably and elastically connected with the sleeve, one end of the measuring support is provided with a connecting seat used for connecting the sleeve and the displacement sensor, one end of the movable rod body is connected with a telescopic probe on the displacement sensor, and the other end of the movable rod body is connected with the displacement sensor. A plurality of groove bodies are formed in the inner wall of the connecting seat, a liquid column used for being in sliding connection with the corresponding groove body is arranged in each groove body, the liquid columns are communicated with a liquid cavity in the measuring support through connecting pipes, and a piston rod used for extruding the liquid cavity is arranged at the other end of the measuring support. The measuring equipment can be conveniently adjusted according to the inner diameter of a cylinder of the rotary kiln during measurement of the rotary kiln, electric driving parts such as a motor are not needed during adjustment operation, operation is simple, and length adjustment of the movable rod body can be quickly responded.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring tools, and particularly relates to a measuring device for the ovality of a rotary kiln. Background Technique

[0002] The ovality of a rotary kiln refers to the difference between the axial diameter and the transverse diameter of the rotary kiln cylinder body, which is an important parameter for measuring whether the shape of the rotary kiln cylinder body is regular. If the axial diameter and the transverse diameter of the rotary kiln cylinder body are equal, it is called circular; if not, it is called elliptical, and the difference is the ovality. The smaller the ovality, the closer the structure of the rotary kiln cylinder body is to a circle, which has a greater impact on the normal operation of the equipment and the processing of materials; while a larger ovality may cause the equipment to run unsteadily, affect the uniform heating and full reaction of the materials in the kiln, and thus reduce the product quality and production efficiency.

[0003] The ovality of a rotary kiln can usually be measured by the surveying method and the mechanical method. The surveying method uses surveying equipment and software to collect the cross-sectional data of the rotary kiln steel cylinder body and measure the major axis and minor axis of each cross-section, so as to calculate the ovality value, while the mechanical method uses mechanical equipment to move the axis point to a certain distance from the surface of the steel cylinder body and record the position and data of each cross-section; however, the current measuring equipment is usually cumbersome to operate when switching the cylinder diameter size and is very inconvenient during measurement. Therefore, a new type of measuring equipment is needed to solve the above problems. Content of the Utility Model

[0004] To solve the above technical problems, the utility model provides a measuring device for the ovality of a rotary kiln.

[0005] The technical solution of the utility model is: a measuring device for the ovality of a rotary kiln, including a measuring bracket, a movable rod body, a sleeve and a displacement sensor. The movable rod body is slidably and elastically connected with the sleeve. One end of the measuring bracket is provided with a connecting seat for connecting the sleeve and the displacement sensor. The sleeve is slidably sleeved with the connecting seat, and the displacement sensor is fixedly connected with the connecting seat. One end of the movable rod body is connected with the telescopic probe on the displacement sensor. The inner wall of the connecting seat is provided with a plurality of grooves, and each groove is provided with a liquid column for slidably connecting the sleeve and the groove. The liquid column is communicated with the liquid cavity in the measuring bracket through a connecting pipe, and the other end of the measuring bracket is provided with a piston rod for extruding the liquid cavity.

[0006] Further, the piston rod is threadedly connected with the end of the measuring bracket.

[0007] Explanation: The threaded connection method is easy to manufacture on the one hand, and on the other hand, the operation is stable and easy to operate, enabling the operator to quickly get started.

[0008] Furthermore, the signal output end of the displacement sensor is signal-connected to a display instrument.

[0009] Note: The data monitored by the displacement sensor can be observed in real time through the display instrument, providing a reference for subsequent calculation of the ovality of the rotary kiln.

[0010] Furthermore, the other end of the movable rod body is provided with a ball for contacting the inner wall of the rotary kiln.

[0011] Note: By setting the ball, the main body of the equipment can be effectively protected, avoiding damage to the movable rod body or the inner wall of the rotary kiln due to excessive extrusion.

[0012] Furthermore, a switch valve is provided on the connecting pipe of each liquid column.

[0013] Note: The control effect of the extrusion amount of the rotating piston rod can be controlled by the number of liquid columns set. For example, when 6 groups of liquid columns are set, when the number of opened liquid columns is small, the lifting height of the liquid column will increase when the piston rod moves the same offset amount, and when the number of opened liquid columns is large, the lifting height of the liquid column will decrease when the piston rod moves the same offset amount. Through such a setting, the control effect of the liquid column lift can be flexibly adjusted.

[0014] Furthermore, the other end of the measuring bracket is provided with a fixing seat, which can be a support with various shapes for fixing the measuring bracket, so no specific limitation is made here.

[0015] Note: The setting of the fixing seat can improve the operation stability of the equipment, providing a basis for more accurate measurement of the ovality of the rotary kiln.

[0016] The beneficial effects of the present utility model are:

[0017] (1) When measuring the rotary kiln, the measuring device of the present utility model can be conveniently adjusted according to the inner diameter of the cylinder body of the rotary kiln. During the adjustment operation, no electric driving parts such as motors are required, and the operation is simple, and it can quickly respond to the length adjustment of the movable rod body.

[0018] (2) The measuring device of the present utility model can also control the control effect of the extrusion amount of the rotating piston rod by the number of liquid columns set, so as to be able to flexibly adjust the control effect of the liquid column lift. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the overall structural schematic diagram of the measuring device of the present utility model;

[0020] Figure 2 is the structural schematic diagram of the connecting seat of the measuring device of the present utility model;

[0021] Figure 3 is the structural schematic diagram of the sleeve of the measuring device of the present utility model;

[0022] Figure 4 It is a schematic diagram of the connecting pipe structure of the measuring device of the present utility model;

[0023] Wherein, 1 - measuring bracket, 11 - connecting seat, 12 - groove body, 13 - liquid column, 14 - piston rod, 2 - movable rod body, 3 - sleeve, 31 - slider, 4 - displacement sensor, 41 - telescopic probe. Specific embodiments

[0024] The following combines specific embodiments to further elaborate on the present utility model in more detail to better reflect the advantages of the present utility model.

[0025] Embodiment 1: A measuring device for the ovality of a rotary kiln, including a measuring bracket 1, a movable rod body 2, a sleeve 3, and a displacement sensor 4. The movable rod body 2 is slidably and elastically connected to the sleeve 3. One end of the measuring bracket 1 is provided with a connecting seat 11 for connecting the sleeve 3 and the displacement sensor 4. The sleeve 3 is slidably sleeved on the connecting seat 11. The displacement sensor 4 is connected to the connecting seat 11 through three telescopic rods. One end of the movable rod body 2 is connected to the telescopic probe 41 on the displacement sensor 4. The inner wall of the connecting seat 11 is provided with six groove bodies 12. Each groove body 12 is provided with a liquid column 13 for slidably connecting the sleeve 3 and the groove body 12. Specifically, the sleeve 3 has a slider 31 that slidably connects to the groove body 12 one by one. The sleeve 3 is connected to the liquid column 13 through the slider 31. And the liquid column 13 is communicated with the liquid cavity in the measuring bracket 1 through a connecting pipe. And the other end of the measuring bracket 1 is provided with a piston rod 14 for squeezing the liquid cavity. The piston rod 14 is threadedly connected to the end of the measuring bracket 1. And the signal output end of the displacement sensor 4 is signal-connected to a display instrument. Among them, the display instrument is a general term for commercially available monitors and computers. The displacement sensor is a commercially available displacement sensor.

[0026] It can be understood that the flange of the movable rod body 2 and the sleeve 3 are connected by a spring. Adjust the spring variable, generally adjusted to be about 20 mm less than the free length of the spring.

[0027] The adjustment method of the above-mentioned measuring device is: by rotating the piston rod 14 to push the liquid in the liquid cavity. This liquid can be commercially available oil, water, etc. liquids. Thus, the liquid is injected into the liquid column 13 along the connecting pipe, causing the liquid column 13 to elongate and thus lifting the entire sleeve 3 upward. The entire sleeve 3 here refers to the movable rod body 2, the displacement sensor 4, and the sleeve 3. Lifting the sleeve 3 makes the ball contact the surface of the rotary kiln cylinder. When the rotary kiln cylinder deforms, the rotation of the cylinder drives the movable rod body 2 to press down, and further drives the telescopic probe 41 to contract. After the rotary kiln rotates one week, the displacement sensor 4 transmits the measurement signal to the display instrument and displays the numerical change amount, thereby measuring the cylinder deformation amount to determine the ovality.

[0028] Example 2: The difference between this example and Example 1 is that a switching valve is provided on the connecting pipe of each liquid column 13. The switching valve is a commercially available one, and the control effect of the extrusion amount of the rotating piston rod can be controlled by the number of liquid columns provided.

[0029] The adjustment method of the above measuring device is as follows: On the basis of Example 1, by setting 6 groups of liquid columns, when the number of opened liquid columns is small, such as opening 3 groups, the lifting height of the liquid column will increase when the piston rod moves the same offset amount. When the number of opened liquid columns is large, such as opening 6 groups, the lifting height of the liquid column will be reduced by half when the piston rod moves the same offset amount. Through such a setting, the control effect of the liquid column lifting can be flexibly adjusted;

[0030] It can be understood that when opening 3 groups of liquid columns of this quantity, it is necessary to open them at intervals to avoid uneven opening of the liquid columns distributed in a circle and affecting the stability of lifting.

[0031] Example 3: The difference between this example and Example 1 is that a fixed seat is provided at the other end of the measuring bracket 1 (not shown in the figure). By connecting the fixed seat at the other end of the measuring bracket 1, the placement stability of the measuring bracket 1 can be improved by using the fixed seat for support.

Claims

1. A rotary kiln ovality measuring device, characterized in that: The invention comprises a measuring support (1), a movable rod body (2), a sleeve (3) and a displacement sensor (4); the movable rod body (2) and the sleeve (3) are slidably and elastically connected; one end of the measuring support (1) is provided with a connecting seat (11) for connecting the sleeve (3) and the displacement sensor (4); one end of the movable rod body (2) is connected to a telescopic probe (41) on the displacement sensor (4); a plurality of grooves (12) are provided on the inner wall of the connecting seat (11); each groove body (12) is provided with a liquid column (13) for slidably connecting the sleeve (3) and the groove body (12); the liquid column (13) is connected to a liquid cavity in the measuring support (1) through a connecting pipe; and the other end of the measuring support (1) is provided with a piston rod (14) for squeezing the liquid cavity.

2. A rotary kiln ovality measuring device as claimed in claim 1, characterized in that: The piston rod (14) is threadedly connected to the end of the measuring bracket (1).

3. The rotary kiln ovality measuring device according to claim 1, characterized in that: The signal output terminal of the displacement sensor (4) is connected to a display instrument.

4. The rotary kiln ovality measuring device according to claim 1, characterized in that: The other end of the movable rod body (2) is provided with a ball for contacting the inner wall of the rotary kiln.

5. The rotary kiln ovality measuring device according to claim 1, characterized in that: A switch valve is provided on the connecting pipe of each liquid column (13).

6. The rotary kiln ovality measuring device according to claim 1, characterized in that: The other end of the measuring bracket (1) is provided with a fixing seat.

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