Method for measuring the outer diameter of the ring support of a large diameter rotary reactor cylinder

Abstract

The present invention relates to the technical field of rotary reactor dimension measurement, and in particular to a method for measuring the outer diameter dimension of a large-diameter rotary reactor cylinder annular bracket; based on the structural characteristics of the large-diameter rotary reactor cylinder body and the annular bracket body, specific first positioning mechanism and second positioning mechanism structures are designed, and the positions of four rollers are adjusted by using a first moving mechanism so that the four rollers are pressed against the end face edge of the annular bracket body to achieve positioning, and a receiving device and a transmitting device of a laser ranging sensor are positioned and connected by a telescopic rod, and the first positioning mechanism and the second positioning mechanism are stably positioned by magnetic attraction to ensure stable and accurate measurement values. Since the position of the magnetic block body is adjustable, it is suitable for magnetic attraction positioning of the block position or the non-block position of the annular bracket body. Compared with the method of measuring by a tape measure in the prior art, this solution has higher measurement accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of rotary reactor size measurement, in particular to a method for measuring the outer diameter of a large-diameter rotary reactor cylinder annular bracket. Background Art

[0002] Rotary reactors are widely used in chemical reactions. Most chemical reactions in rotary reactors require endothermic reactions. For example, calcium fluoride and sulfuric acid are used to generate hydrogen fluoride through endothermic reaction. The reaction process requires a large amount of heat absorption. Therefore, an annular heating chamber needs to be set outside the furnace body. By introducing a heat-conducting medium, such as high-temperature gas, into the heating chamber, heat is transferred to the furnace body to meet the needs of chemical endothermic reactions.

[0003] A Chinese patent with authorization announcement number CN221376263U discloses a rotary reactor roller support device, whose structure includes an annular bracket for supporting the roller body. The annular bracket is an annular part coaxially connected to the outside of the reactor cylinder through a support rod, and is used for heat insulation between the reactor cylinder and the roller body. In order to make the roller body and the annular bracket more convenient and stable to install, a plurality of blocks distributed in a circular array are also provided on the outside of the annular bracket to avoid the risk of axial displacement after the roller body and the annular bracket are installed and connected.

[0004] It can be seen from the structure of the above patent that due to the special position of the annular bracket connected to the reactor cylinder, it is difficult to measure the outer diameter of the annular bracket by conventional measuring means. For example, when measuring with a traditional tape measure, the outer diameter can only be converted by measuring the outer circumference of the annular bracket. On the one hand, the accuracy of the tape measure is limited, there is a certain error in the direction of the tension of the tape measure itself, and the limitation of the block structure outside the annular bracket results in low measurement accuracy and large error of this method. Since the diameter of the rotary kiln itself is large, and the annular bracket is connected to the middle section of the rotary kiln cylinder, it is difficult to accurately measure with a conventional vernier caliper or other conventional measuring means. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a method for accurately measuring the outer diameter of an annular bracket in a special structure in which an annular bracket and a stopper are connected to the outside of a reactor cylinder.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A method for measuring the outer diameter of a large-diameter rotary reactor drum annular support, wherein the large-diameter rotary reactor drum annular support comprises:

[0008] The rotary reactor body is in the shape of a cylindrical ring.

[0009] An annular support body, the annular support body being coaxially connected to the outside of the middle section of the rotary reactor cylinder body through a plurality of support rods, and a plurality of stoppers being arranged in a circumferential array on the outside of the annular support body;

[0010] The measuring method is based on a measuring device, which includes a first positioning mechanism and a second positioning mechanism of the same structure; and a laser ranging sensor, which includes a transmitting device and a receiving device;

[0011] The first positioning mechanism and the second positioning mechanism have the same structure; the first positioning mechanism includes a first bracket, a second bracket, a first moving mechanism, a magnetic block body, a second moving mechanism, a first roller, a second roller, a third roller, a fourth roller and a telescopic rod;

[0012] The first bracket and the second bracket are connected via a first moving mechanism, and the first moving mechanism is used to drive the second bracket to move relative to the first bracket along the X direction;

[0013] The magnetic block body is connected to the first bracket via a second moving mechanism, and the second moving mechanism is used to drive the magnetic block body to move along the Y direction;

[0014] The first roller and the second roller are rotatably connected to the first bracket in a symmetrical manner, and the axes of the first roller and the second roller are located in the same plane, which is perpendicular to the X direction;

[0015] The third roller and the fourth roller are rotatably connected to the second bracket in a symmetrical manner, and the axes of the third roller and the fourth roller are located in the same plane, which is perpendicular to the X direction;

[0016] One end of the telescopic rod is connected to the first bracket, and the telescopic rod is parallel to the X direction;

[0017] The emitting device of the laser ranging sensor is connected to the telescopic rod of the first positioning mechanism, the emitting direction of the emitting device is perpendicular to the X direction, and the emitting direction of the emitting device is located in the axial symmetry plane between the first roller and the second roller;

[0018] The receiving device of the laser ranging sensor is connected to the telescopic rod of the second positioning mechanism;

[0019] The measuring method comprises the following steps:

[0020] Step 1: Place the first positioning mechanism and the second positioning mechanism at diagonal positions of the annular bracket body respectively;

[0021] Step 2: Adjust the first moving mechanism according to the axial width of the annular bracket body so that the distance between the first roller and the third roller is equal to the axial width of the annular bracket body, and the distance between the second roller and the fourth roller is equal to the axial width of the annular bracket body, so that the first roller, the second roller, the third roller, and the fourth roller are respectively pressed against the edge of the annular bracket body;

[0022] Step 3: Adjust the length of the telescopic rod of the first positioning mechanism and the length of the telescopic rod of the second positioning mechanism so that the receiving device and the transmitting device extend outside one end of the rotary reactor body and the projection directions of the receiving device and the transmitting device are located in the same plane, which is perpendicular to the X direction;

[0023] Step 4: Slowly move the first positioning mechanism or the second positioning mechanism along the circumference of the annular bracket body. When the distance measured by the laser ranging sensor is the longest, it means that the first positioning mechanism and the second positioning mechanism are exactly located at the diagonal corners of the annular bracket body. At this time, adjust the second moving mechanism so that the magnetic block body approaches and is adsorbed on the outer circumference of the annular bracket body. The outer diameter of the annular bracket body is measured by the laser ranging sensor.

[0024] Step 5: Reversely adjust the second moving mechanism to separate the magnetic block body from the annular bracket body; reversely adjust the first moving mechanism to separate the first roller, the second roller, the third roller and the fourth roller from the annular bracket body.

[0025] Furthermore, in the above-mentioned method for measuring the outer diameter dimension of the annular bracket of the large-diameter rotary reactor cylinder, the first moving mechanism includes a first screw rod and a first guide column; the axial directions of the first screw rod and the first guide column are both X-direction, one end of the first screw rod is rotatably connected to the first bracket, and the second bracket is provided with a first threaded hole that is threadedly matched with the first screw rod; one end of the first guide column is fixedly connected to the first bracket, and the second bracket is provided with a first through hole that is slidably matched with the first guide column.

[0026] Furthermore, in the above-mentioned method for measuring the outer diameter dimension of the annular bracket of the large-diameter rotary reactor cylinder, the second moving mechanism includes a second screw rod and a second guide column; the axial directions of the second screw rod and the second guide column are both perpendicular to the X direction, one end of the second screw rod is rotatably connected to the magnetic block body, and the first bracket is provided with a second threaded hole that is threadedly engaged with the second screw rod; one end of the second guide column is fixedly connected to the magnetic block body, and the first bracket is provided with a second through hole that is slidably engaged with the second guide column.

[0027] Furthermore, in the above-mentioned method for measuring the outer diameter of the annular support of the large-diameter rotary reactor cylinder, the telescopic rod includes a guide rail seat, a slide rod and a locking screw;

[0028] The guide rail seat is fixedly connected to the first bracket, and the guide rail seat is provided with an X-direction dovetail guide groove. The slide rod is slidably connected to the dovetail guide groove. A third threaded hole is provided on the side of the guide rail seat, and the locking screw is threadedly connected to the third threaded hole.

[0029] Furthermore, in the above-mentioned method for measuring the outer diameter dimension of the annular bracket of the large-diameter rotary reactor cylinder, the first roller, the second roller, the third roller and the fourth roller have the same structure, the shape of the first roller is stepped, and the first roller is pressed against the positive corner of the outer end of the annular bracket body through the stepped negative corner.

[0030] Furthermore, in the above-mentioned method for measuring the outer diameter of the annular bracket of the large-diameter rotary reactor cylinder, the first moving mechanism further includes a first hand wheel, and the first hand wheel is connected to the end of the first screw rod.

[0031] Furthermore, in the above-mentioned method for measuring the outer diameter of the annular bracket of the large-diameter rotary reactor cylinder, the second moving mechanism further includes a second hand wheel, and the second hand wheel is connected to the end of the second screw rod.

[0032] The beneficial effects of the present invention are as follows: the present invention designs a specific first positioning mechanism and a second positioning mechanism structure according to the structural characteristics of the large-diameter rotary reactor cylinder body and the annular bracket body, utilizes the first moving mechanism to adjust the positions of the four rollers so that the four rollers are pressed against the end face edge of the annular bracket body to achieve positioning, and the receiving device and the transmitting device of the laser ranging sensor are positioned by the telescopic rod, and the position of the first positioning mechanism or the second positioning mechanism is fine-tuned, and the position of the first positioning mechanism or the second positioning mechanism is positioned using the value change measured by the laser ranging sensor, so that the receiving device and the transmitting device are exactly located at the diagonal position, and the position of the magnetic block body is adjusted by the second moving mechanism, and the first positioning mechanism and the second positioning mechanism are stably positioned by magnetic attraction to ensure stable and accurate measurement values. Since the position of the magnetic block body is adjustable, it is suitable for magnetic attraction positioning of the block position or the non-block position of the annular bracket body. Compared with the method of measuring by a tape measure in the prior art, this solution has higher measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A schematic structural diagram of a measuring device from a first perspective, related to a method for measuring the outer diameter of an annular support of a large-diameter rotary reactor cylinder according to a specific embodiment of the present invention;

[0034] Figure 2 for Figure 1 A magnified view of part A;

[0035] Figure 3A schematic structural diagram of a measuring device from a second perspective related to a method for measuring the outer diameter of an annular support of a large-diameter rotary reactor cylinder according to a specific embodiment of the present invention;

[0036] Figure 4 for Figure 3 A magnified view of part B;

[0037] Description of labels:

[0038] 1. Rotary reactor cylinder body;

[0039] 2. annular bracket body; 21. stopper;

[0040] 3. First positioning mechanism; 31. First bracket; 32. Second bracket; 33. First moving mechanism; 331. First screw rod; 332. First guide post; 333. First hand wheel; 34. Magnetic block body; 35. Second moving mechanism; 351. Second screw rod; 352. Second guide post; 353. Second hand wheel; 36. First roller; 37. Second roller; 38. Third roller; 39. Fourth roller; 310. Telescopic rod; 3101. Guide rail seat; 3102. Sliding rod; 3103. Locking screw;

[0041] 4. Second positioning mechanism;

[0042] 5. Laser ranging sensor; 51. Transmitter; 52. Receiver. DETAILED DESCRIPTION

[0043] To illustrate the technical content, achieved objectives and effects of the present invention in detail, the following description is given in conjunction with the embodiments and accompanying drawings.

[0044] Please refer to Figures 1 to 4 The specific embodiment of the present invention relates to a method for measuring the outer diameter of a large-diameter rotary reactor drum annular support, wherein the large-diameter rotary reactor drum annular support comprises:

[0045] The rotary reactor body 1 is in the shape of a circular cylinder;

[0046] An annular support body 2, which is coaxially connected to the outside of the middle section of the rotary reactor cylinder body 1 through multiple support rods, and a plurality of stoppers 21 are arranged on the outside of the annular support body 2 in a circumferential array;

[0047] The measuring method is based on a measuring device, which includes a first positioning mechanism 3 and a second positioning mechanism 4 of the same structure; and a laser distance sensor 5, which includes a transmitting device 51 and a receiving device 52;

[0048] The first positioning mechanism 3 and the second positioning mechanism 4 have the same structure; the first positioning mechanism 3 includes a first bracket 31, a second bracket 32, a first moving mechanism 33, a magnetic block body 34, a second moving mechanism 35, a first roller 36, a second roller 37, a third roller 38, a fourth roller 39 and a telescopic rod 310;

[0049] The first bracket 31 and the second bracket 32 ​​are connected via a first moving mechanism 33, and the first moving mechanism 33 is used to drive the second bracket 32 ​​to move relative to the first bracket 31 along the X direction;

[0050] The magnetic block body 34 is connected to the first bracket 31 through a second moving mechanism 35, and the second moving mechanism 35 is used to drive the magnetic block body 34 to move along the Y direction;

[0051] The first roller 36 and the second roller 37 are rotatably connected to the first bracket 31 symmetrically. The axes of the first roller 36 and the second roller 37 are located in the same plane, which is perpendicular to the X direction.

[0052] The third roller 38 and the fourth roller 39 are rotatably connected to the second bracket 32 ​​in a symmetrical manner. The axes of the third roller 38 and the fourth roller 39 are located in the same plane, which is perpendicular to the X direction.

[0053] One end of the telescopic rod 310 is connected to the first bracket 31 , and the telescopic rod 310 is parallel to the X direction;

[0054] The emitting device 51 of the laser ranging sensor 5 is connected to the telescopic rod 310 of the first positioning mechanism 3. The emitting direction of the emitting device 51 is perpendicular to the X direction and is located in the axisymmetric plane of the first roller 36 and the second roller 37.

[0055] The receiving device 52 of the laser distance measuring sensor 5 is connected to the telescopic rod 310 of the second positioning mechanism 4;

[0056] The measuring method comprises the following steps:

[0057] Step 1: Place the first positioning mechanism 3 and the second positioning mechanism 4 at diagonal positions of the annular bracket body 2 respectively;

[0058] Step 2: Adjust the first moving mechanism 33 according to the axial width of the annular support body 2 so that the distance between the first roller 36 and the third roller 38 is equal to the axial width of the annular support body 2, and the distance between the second roller 37 and the fourth roller 39 is equal to the axial width of the annular support body 2, so that the first roller 36, the second roller 37, the third roller 38, and the fourth roller 39 are respectively pressed against the edge of the annular support body 2;

[0059] Step 3: Adjust the length of the telescopic rod 310 of the first positioning mechanism 3 and the length of the telescopic rod 310 of the second positioning mechanism 4 so that the receiving device 52 and the transmitting device 51 extend outside one end of the rotary reactor cylinder body 1 and the projection directions of the receiving device 52 and the transmitting device 51 are located in the same plane, which is perpendicular to the X direction.

[0060] Step 4: Slowly move the first positioning mechanism 3 or the second positioning mechanism 4 along the circumference of the annular bracket body 2. When the distance measured by the laser ranging sensor 5 is the longest, it means that the first positioning mechanism 3 and the second positioning mechanism 4 are exactly located at the diagonal positions of the annular bracket body 2. At this time, adjust the second moving mechanism 35 so that the magnetic block body 34 approaches and is adsorbed on the outer circumference of the annular bracket body 2. The outer diameter of the annular bracket body 2 is measured by the laser ranging sensor 5.

[0061] Step 5: Reversely adjust the second moving mechanism 35 to release the magnetic block body 34 from the adsorption of the annular bracket body 2; reversely adjust the first moving mechanism 33 to release the first roller 36, the second roller 37, the third roller 38 and the fourth roller 39 from the annular bracket body 2.

[0062] In the above embodiment, it should be noted that, after positioning is completed, the distance between the emitting device 51 and the receiving device 52 of the laser ranging sensor 5 can be exactly equal to the outer diameter of the annular bracket body 2, or can have a fixed difference. The measurement value of the laser ranging sensor 5 is the distance between the emitting device 51 and the receiving device 52. The actual outer diameter measurement value is obtained by converting the fixed difference between the distance between the emitting device 51 and the receiving device 52 and the outer diameter of the annular bracket body.

[0063] In the above embodiment, according to the structural characteristics of the large-diameter rotary reactor cylinder body 1 and the annular bracket body 2, a specific structure of the first positioning mechanism 3 and the second positioning mechanism 4 is designed, and the first moving mechanism 33 is used to adjust the position of the four rollers so that the four rollers are pressed against the end surface edge of the annular bracket body 2 to achieve positioning, and the receiving device 52 and the transmitting device 51 connected to the laser ranging sensor 5 are positioned by the telescopic rod 310. By fine-tuning the position of the first positioning mechanism 3 or the second positioning mechanism 4, the position of the first positioning mechanism 3 or the second positioning mechanism 4 is positioned using the value change measured by the laser ranging sensor 5, so that the receiving device 52 and the transmitting device 51 are exactly located at the diagonal position, and the position of the magnetic block body 34 is adjusted by the second moving mechanism 35, and the first positioning mechanism 3 and the second positioning mechanism 4 are stably positioned by magnetic attraction to ensure stable and accurate measurement values. Since the position of the magnetic block body 34 is adjustable, it is suitable for magnetic attraction positioning of the stop block 21 position of the annular bracket body 2 or the magnetic attraction positioning of the non-stop block 21 position. Compared with the method of measuring by a tape measure in the prior art, this solution has higher measurement accuracy.

[0064] As a preferred embodiment, the first moving mechanism 33 includes a first screw rod 331 and a first guide column 332; the axial directions of the first screw rod 331 and the first guide column 332 are both X-direction, one end of the first screw rod 331 is rotatably connected to the first bracket 31, and the second bracket 32 ​​is provided with a first threaded hole threadedly engaged with the first screw rod 331; one end of the first guide column 332 is fixedly connected to the first bracket 31, and the second bracket 32 ​​is provided with a first through hole slidingly engaged with the first guide column 332.

[0065] As a preferred embodiment, the second moving mechanism 35 includes a second screw rod 351 and a second guide column 352; the axial directions of the second screw rod 351 and the second guide column 352 are both perpendicular to the X direction, one end of the second screw rod 351 is rotatably connected to the magnetic block body 34, and the first bracket 31 is provided with a second threaded hole threadedly engaged with the second screw rod 351; one end of the second guide column 352 is fixedly connected to the magnetic block body 34, and the first bracket 31 is provided with a second through hole slidingly engaged with the second guide column 352.

[0066] As a preferred embodiment, the telescopic rod 310 includes a guide rail seat 3101, a slide rod 3102 and a locking screw 3103;

[0067] The guide rail seat 3101 is fixedly connected to the first bracket 31, and the guide rail seat 3101 is provided with an X-direction dovetail guide groove. The slide rod 3102 is slidably connected to the dovetail guide groove. The side of the guide rail seat 3101 is provided with a third threaded hole, and the locking screw 3103 is threadedly connected to the third threaded hole.

[0068] As a preferred embodiment, the first roller 36, the second roller 37, the third roller 38 and the fourth roller 39 have the same structure. The first roller 36 is stepped in shape, and the first roller 36 is pressed against the outer end of the annular bracket body 2 at the stepped inner corner.

[0069] As a preferred embodiment, the first moving mechanism 33 further includes a first hand wheel 333 , and the first hand wheel 333 is connected to the end of the first screw rod 331 .

[0070] As a preferred embodiment, the second moving mechanism 35 further includes a second hand wheel 353 , and the second hand wheel 353 is connected to the end of the second screw rod 351 .

[0071] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's description and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A method for measuring the outer diameter of a large-diameter rotary reactor drum annular support, wherein the large-diameter rotary reactor drum annular support comprises: The rotary reactor body is in the shape of a cylindrical ring. An annular support body, the annular support body being coaxially connected to the outside of the middle section of the rotary reactor cylinder body through a plurality of support rods, and a plurality of stoppers being arranged in a circumferential array on the outside of the annular support body; It is characterized in that the measuring method is based on a measuring device, which includes a first positioning mechanism and a second positioning mechanism with the same structure; and further includes a laser ranging sensor, which includes a transmitting device and a receiving device; The first positioning mechanism and the second positioning mechanism have the same structure; the first positioning mechanism includes a first bracket, a second bracket, a first moving mechanism, a magnetic block body, a second moving mechanism, a first roller, a second roller, a third roller, a fourth roller and a telescopic rod; The first bracket and the second bracket are connected via a first moving mechanism, and the first moving mechanism is used to drive the second bracket to move relative to the first bracket along the X direction; The magnetic block body is connected to the first bracket via a second moving mechanism, and the second moving mechanism is used to drive the magnetic block body to move along the Y direction; The first roller and the second roller are rotatably connected to the first bracket in a symmetrical manner, and the axes of the first roller and the second roller are located in the same plane, which is perpendicular to the X direction; The third roller and the fourth roller are rotatably connected to the second bracket in a symmetrical manner, and the axes of the third roller and the fourth roller are located in the same plane, which is perpendicular to the X direction; One end of the telescopic rod is connected to the first bracket, and the telescopic rod is parallel to the X direction; The emitting device of the laser ranging sensor is connected to the telescopic rod of the first positioning mechanism, the emitting direction of the emitting device is perpendicular to the X direction, and the emitting direction of the emitting device is located in the axial symmetry plane between the first roller and the second roller; The receiving device of the laser ranging sensor is connected to the telescopic rod of the second positioning mechanism; The measuring method comprises the following steps: Step 1: Place the first positioning mechanism and the second positioning mechanism at diagonal positions of the annular bracket body respectively; Step 2: Adjust the first moving mechanism according to the axial width of the annular bracket body so that the distance between the first roller and the third roller is equal to the axial width of the annular bracket body, and the distance between the second roller and the fourth roller is equal to the axial width of the annular bracket body, so that the first roller, the second roller, the third roller, and the fourth roller are respectively pressed against the edge of the annular bracket body; Step 3: Adjust the length of the telescopic rod of the first positioning mechanism and the length of the telescopic rod of the second positioning mechanism so that the receiving device and the transmitting device extend outside one end of the rotary reactor body and the projection directions of the receiving device and the transmitting device are located in the same plane, which is perpendicular to the X direction; Step 4: Slowly move the first positioning mechanism or the second positioning mechanism along the circumference of the annular bracket body. When the distance measured by the laser ranging sensor is the longest, it means that the first positioning mechanism and the second positioning mechanism are exactly located at the diagonal corners of the annular bracket body. At this time, adjust the second moving mechanism so that the magnetic block body approaches and is adsorbed on the outer circumference of the annular bracket body. The outer diameter of the annular bracket body is measured by the laser ranging sensor. Step 5: Reversely adjust the second moving mechanism to separate the magnetic block body from the annular bracket body; reversely adjust the first moving mechanism to separate the first roller, the second roller, the third roller and the fourth roller from the annular bracket body.

2. The method for measuring the outer diameter of the annular support of a large-diameter rotary reactor cylinder according to claim 1 is characterized in that: The first moving mechanism includes a first screw rod and a first guide column; the axial directions of the first screw rod and the first guide column are both X-direction, one end of the first screw rod is rotatably connected to the first bracket, and the second bracket is provided with a first threaded hole that is threadedly matched with the first screw rod; one end of the first guide column is fixedly connected to the first bracket, and the second bracket is provided with a first through hole that is slidably matched with the first guide column.

3. The method for measuring the outer diameter of the annular support of a large-diameter rotary reactor cylinder according to claim 1, characterized in that: The second moving mechanism includes a second screw rod and a second guide column; the axial directions of the second screw rod and the second guide column are both perpendicular to the X direction, one end of the second screw rod is rotatably connected to the magnetic block body, and the first bracket is provided with a second threaded hole that is threadedly matched with the second screw rod; one end of the second guide column is fixedly connected to the magnetic block body, and the first bracket is provided with a second through hole that is slidably matched with the second guide column.

4. The method for measuring the outer diameter of the annular support of a large-diameter rotary reactor cylinder according to claim 1, characterized in that: The telescopic rod includes a guide rail seat, a slide rod and a locking screw; The guide rail seat is fixedly connected to the first bracket, and the guide rail seat is provided with an X-direction dovetail guide groove. The slide rod is slidably connected to the dovetail guide groove. A third threaded hole is provided on the side of the guide rail seat, and the locking screw is threadedly connected to the third threaded hole.

5. The method for measuring the outer diameter of the annular support of a large-diameter rotary reactor cylinder according to claim 1, characterized in that: The first roller, the second roller, the third roller and the fourth roller have the same structure. The first roller is in a stepped shape and is pressed against the male corner of the outer end of the annular bracket body through the female corner of the stepped shape.

6. The method for measuring the outer diameter of the annular support of a large-diameter rotary reactor cylinder according to claim 2, characterized in that: The first moving mechanism further includes a first hand wheel connected to the end of the first screw rod.

7. The method for measuring the outer diameter of the annular support of a large-diameter rotary reactor cylinder according to claim 2, characterized in that: The second moving mechanism further includes a second hand wheel, and the second hand wheel is connected to the end of the second screw rod.

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