Installation auxiliary device and installation calibration method of ring cooling machine supporting roller

Abstract

The present application relates to the technical field of steel metallurgy, and particularly relates to a kind of installation auxiliary device and installation calibration method of circular cooling machine supporting roller, including roller body installation auxiliary device, the roller body installation auxiliary device includes: base, wing plate, wherein, left and right sides of wing plate front end face are respectively machined into sink pad, so as to form sink pad surface on wing plate, and horizontal edge line and longitudinal edge line are formed on the outer edge of sink pad;The present application designs symmetrical wing plate and sink pad structure, avoids the line-of-sight obstacle of inner ring column from the center total station instrument of circular cooling machine, directly observes the symmetrical sink pad of auxiliary device, can make indirect observation of multiple measurement reference conversion into direct visual observation, make certain undetectable item measurable, can directly measure a circle from center measurement table ring, measure all supporting rollers at one time, detection is intuitive and convenient, detection efficiency is greatly improved, and higher reliability and accuracy can be guaranteed.

Description

Technical Field

[0001] This invention relates to the field of iron and steel metallurgy, and specifically to an auxiliary device for installing and calibrating the support rollers of an annular cooler. Background Technology

[0002] The rotary arm type liquid-sealed ring cooler (hereinafter referred to as the ring cooler) is the main main equipment for ironmaking processes (sintering, pelletizing) in the current iron and steel metallurgical industry. As a large-scale system that must be assembled and debugged on-site, the quality of on-site installation has a crucial impact on the equipment's performance and lifespan.

[0003] When the annular cooler is working, the hot mineral material is supported by a rotating frame trolley that moves in a ring, and heat exchange occurs. Therefore, the support rollers that support the rotating frame trolley to achieve circumferential movement are particularly important for the stable operation of the annular cooler. The installation position and geometric dimensions of the support rollers have a significant impact on whether the rotating frame trolley will deviate from its designated path.

[0004] like Figure 1 As shown, the annular cooler is equipped with an inner ring column for installing components such as the flat beam and side rollers. However, the inner ring column obstructs the view from the central measuring platform, requiring constant changes of the measuring station or indirect observation during measurement. This greatly inconveniences the installation and measurement of the support rollers. Therefore, there is an urgent need to improve the installation process of the support rollers. Summary of the Invention

[0005] To address the problems existing in the current technology and to ensure the installation accuracy of the support rollers in the annular cooler while simplifying the inspection and adjustment process, this invention discloses an auxiliary device for roller installation. Specifically, the auxiliary device for roller installation includes:

[0006] The base extends in a direction parallel to the axial direction of the roller body, and the bottom surface of the base is a positioning surface that fits with the outer circular surface of the roller body.

[0007] A wing plate is disposed on the top surface of the base and extends to the left and right sides of the base, and the plane in which the wing plate is located is perpendicular to the axial direction of the roller body;

[0008] The wing plate has a recessed platform on each of its left and right sides, thereby forming a recessed platform surface on the wing plate. The outer edge of the recessed platform has a transverse edge line and a longitudinal edge line.

[0009] Preferably, the wing plate has protrusions on its left and right sides, and the countersink is machined on the front end surface of the protrusions.

[0010] Preferably, the wing plate and the recessed platform are symmetrically arranged relative to the base.

[0011] Preferably, the positioning surface includes an inverted V-shaped groove in the middle and symmetrical horizontal reference surfaces extending from the bottom of the inverted V-shaped groove to the left and right sides, and the projection of the horizontal symmetrical center line of the positioning surface coincides with the central axis of the roller.

[0012] Preferably, the lateral distance between the longitudinal edges of the left and right recessed platforms is w, that is, the lateral parallel distance between the longitudinal edges of the left and right recessed platforms and the horizontal symmetrical center line of the positioning surface is w / 2, where w is a fixed value; the longitudinal distance between the lateral edge of the recessed platform and the horizontal reference plane of the positioning surface is h, where h is a fixed value.

[0013] Preferably, the base has a front reference surface, which is a flat surface, and the distance between the front reference surface and the recessed platform surface is d, where d is a fixed value.

[0014] Preferably, the sinking platform is manufactured by machining.

[0015] Preferably, the top surface of the base extends behind the wing plate to form a horizontal plane for correcting the horizontal state of the auxiliary device.

[0016] This invention also discloses a method for installing and calibrating the support roller of an annular cooler. The annular cooler has the following design dimensions: the distance L between the radial centerline of the support roller surface and the centerline of the rotary frame trolley, the distance R0 between the center of the annular cooler and the centerline of the rotary frame trolley, and the vertical offset e from the center of the annular cooler to the central axis of the support roller. The method includes:

[0017] S1. Select the roller mounting auxiliary device and determine the following inherent dimensions of the roller mounting auxiliary device: the distance d between the front reference surface and the countersunk surface, the lateral distance w between the longitudinal edges on the left and right sides, and the longitudinal distance h between the lateral edge and the horizontal reference surface of the positioning surface.

[0018] S2. A total station is set at the center of the annular cooler to cooperate with the auxiliary device for roller installation to detect and calibrate the installation dimensions of the support roller;

[0019] S3. Place the roller mounting auxiliary device horizontally and stably on the top of the support roller, so that the wing plates are symmetrically distributed on the left and right sides of the support roller, and align the front reference surface of the base with the front end surface of the support roller.

[0020] S4. Adjustment and calibration of support roller height: The height of the transverse edge is measured using a total station. Combined with the inherent dimension h, the actual installation height of the support roller is calculated, and then the installation height of the support roller is adjusted and calibrated.

[0021] S5. Adjustment and calibration of the radial installation position of the support roller: The actual value of the first distance K between the center of the ring cooler and the longitudinal edge is measured using a total station. Combined with the inherent dimension w, the actual value of R0±L is obtained according to the geometric relationship of triangles. Then, the radial installation position of the support roller is adjusted and calibrated according to the deviation between the actual value of R0±L and the design dimension value.

[0022] S6. Adjustment and calibration of support roller deviation: By comparing the theoretical value of K with the actual value of K, the vertical deviation e is calibrated, and then the support roller is adjusted so that the vertical deviation e is 0.

[0023] Preferably, between steps S2 and S3, the following step is further provided: obtaining the beam surface R0 reference point, specifically: placing the roller mounting auxiliary device on the plane beam used to install the support roller, using a total station to measure the actual value of the second distance K' between the center of the annular cooler and the longitudinal edge line, and combining the inherent dimensions d and w, according to the geometric relationship of triangles, to obtain the actual value of R0, and then adjusting the placement position of the auxiliary device according to the deviation between the actual value of R0 and the design dimension value, so that the front reference surface of the auxiliary device is aligned with the location of R0, thereby obtaining the beam surface R0 reference point on the plane beam.

[0024] The technical solution provided by this invention has the following advantages:

[0025] 1) The present invention provides an auxiliary device for roller installation, which is designed with symmetrical wing plates and a recessed platform structure. It solves the technical problems of inconvenient observation, complicated procedures and low measurement accuracy caused by the line of sight obstruction of the inner ring column in the traditional installation scheme. The total station at the center of the ring cooler avoids the line of sight obstruction of the inner ring column and directly observes the symmetrical recessed platform of the auxiliary device. It can transform the indirect observation of multiple measurement reference conversions into direct visual observation, and make some undetectable items measurable. It can directly measure the entire circle from the central measuring platform and measure all support rollers at one time. The detection is intuitive and convenient, the detection efficiency is greatly improved, and higher reliability and accuracy can be guaranteed.

[0026] 2) The present invention provides an auxiliary device for roller installation, which has the following inherent dimensions: the distance d between the front reference surface and the sinking platform surface, the lateral distance w between the longitudinal edges on the left and right sides, and the longitudinal distance h between the lateral edge and the horizontal reference surface of the positioning surface. By utilizing the above inherent dimensions and the design dimensions of the ring cooler itself, a simple geometric relationship is constructed. Then, by comparing the theoretical and measured values ​​of the relevant dimensions, the adjustment of the support roller is guided. The operation is convenient and the calculation is simple.

[0027] 3) The auxiliary device for roller installation provided by the present invention has a base with an inverted V-shaped groove structure on the positioning surface, which ensures that it can stably fit the cylindrical surface of the support roller and ensures that it is parallel to the axis of the support roller, thereby ensuring the perpendicularity / horizontality of the geometric elements to be measured; when attached to the support roller surface, it can truly reflect the installation position of the support roller. Attached Figure Description

[0028] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of an annular cooler provided in an embodiment of the present invention. Figure 1 ;

[0030] Figure 2 This is a schematic diagram of an annular cooler provided in an embodiment of the present invention. Figure 2 ;

[0031] Figure 3 This is a diagram showing the usage state of the auxiliary device for roller mounting provided in an embodiment of the present invention;

[0032] Figure 4 This is a schematic diagram of the specific structure of the auxiliary device for roller mounting provided in an embodiment of the present invention;

[0033] Figure 5 This is a schematic diagram illustrating the installation and calibration of the support roller using the roller mounting auxiliary device provided by the present invention. Figure 1 ;

[0034] Figure 6 This is a schematic diagram illustrating the installation and calibration of the support roller using the roller mounting auxiliary device provided by the present invention. Figure 2 ;

[0035] Figure 7 A schematic diagram showing the deviation of the extended centerline of the support roller from the center of the annular cooler;

[0036] Figure 8 A schematic diagram illustrating the acquisition of the beam surface R0 reference point using the roller mounting auxiliary device provided by this invention. Figure 1 ;

[0037] Figure 9 A schematic diagram illustrating the acquisition of the beam surface R0 reference point using the roller mounting auxiliary device provided by this invention. Figure 2 .

[0038] Explanation of reference numerals in the attached figures:

[0039] 1-Support roller; 2-Rotating frame trolley; 3-Support rail; 4-Side rail; 5-Side roller; 6-Inner ring column; 7-Planar beam; 8-Central measuring platform; 9-Auxiliary device for roller installation; 91-Base; 92-Wing plate; 93-Sinking platform; 931-Transverse edge line; 932-Longitudinal edge line; 94-Positioning surface; 95-Horizontal plane; 10-Total station. Detailed Implementation

[0040] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0042] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0043] Example 1

[0044] like Figure 1 As shown, several support rollers 1 are distributed around the entire circumference of the annular cooler, and are evenly distributed inside and outside, forming inner and outer ring support rollers, with the annular cooler's mean diameter R0 (i.e., the distance between the center of the annular cooler and the center line of the rotating frame trolley) as the reference. The quality of the support roller installation can be summarized by controlling three geometric characteristics:

[0045] 1) Roller top elevation, i.e. Figure 1 Parameter H: The tops of all the support rollers together form the "support surface" of the rotary frame trolley. The roughness of this "support surface" has a significant impact on heavy-duty operating equipment such as the annular cooler.

[0046] 2) Positioning of the support rollers in the radial direction of the annular cooler, i.e. Figure 1 Parameter L: If this parameter has a large deviation, the support rail of the slewing frame is at risk of derailment, which may lead to loss of control and cause a major equipment accident.

[0047] 3) Deviation parameter e (see Figure 2 Ideally, the extended line of the support roller's centerline passes through the center of the annular cooler. When the support roller's centerline does not point to the center of the annular cooler, such as... Figure 2 The support roller shown by the dashed line will inevitably not be tangent to the support rail trajectory. The greater the deviation, the greater the component force that causes the rotating frame to deviate, which will not only cause abnormal operation, but also increase the running friction and reduce the service life of the equipment.

[0048] Therefore, in the installation of annular coolers, the three parameters H, L, and e of the support rollers mentioned above are inspection items that must be strictly controlled. The support roller designs of various series of annular coolers have basically become universal standard parts, which greatly improves the feasibility of developing standard installation tools for them. This universality across different types of annular coolers enhances measurement operability and convenience.

[0049] like Figure 3-4 As shown, the roller mounting auxiliary device provided by the present invention can be horizontally and stably placed at the top of the support roller during use. The roller mounting auxiliary device includes:

[0050] The base 91 extends in a direction parallel to the axial direction of the roller body, and the bottom surface of the base 91 is a positioning surface 94 that fits with the outer circular surface of the roller body.

[0051] Wing plate 92 is disposed on the top surface of the base 91 and extends to the left and right sides of the base 91, and the plane of the wing plate 92 is perpendicular to the axial direction of the roller body;

[0052] The wing plate 92 has a recessed platform 93 on the left and right sides of its front end face, thereby forming a recessed platform surface on the wing plate 92. The outer edge of the recessed platform has a transverse edge line 931 and a longitudinal edge line 932.

[0053] Optionally, the wing plate 92 has protrusions on both its left and right sides, and the countersink is machined on the front end face of the protrusions. By machining the countersink on the protrusions, the positions of the transverse edge line 931 and the longitudinal edge line 932 are more prominent, making measurement more convenient.

[0054] Optionally, both the wing plate 92 and the recessed platform 93 are symmetrically arranged relative to the base 91. Symmetrical arrangement of the wing plate 92 and the recessed platform 93 helps maintain the left-right balance of the wing plate, thus ensuring the levelness of the installation fixture and guaranteeing measurement accuracy. Furthermore, the symmetry of the recessed platforms on both sides ensures that the measured dimensional parameters on both sides are identical, making the measurement process simpler and the results more intuitive.

[0055] Optionally, the positioning surface 94 includes an inverted V-shaped groove in the center and symmetrical horizontal reference surfaces extending from the bottom of the inverted V-shaped groove to the left and right sides of the base 91. The projection of the horizontal symmetrical centerline of the positioning surface 94 coincides with the central axis of the roller. The positioning surface adopts an inverted V-shaped groove design, which can fit well with the outer circular surface of the support roller and ensure parallelism with the axis of the support roller, thereby ensuring the perpendicularity / horizontality of the geometric elements to be measured; when attached to the surface of the support roller, it can accurately reflect the installation position of the support roller. By designing the bottom surface of the positioning surface 94 as a plane, it can be ensured that the base is placed stably on the roller surface of the support roller. At the same time, the horizontal reference surface can easily cooperate with the transverse edge line to form one of the inherent dimensions (h) of the auxiliary device.

[0056] Optionally, the lateral distance between the longitudinal edges 932 of the left and right recessed platforms is w, that is, the lateral parallel distance between the longitudinal edges 932 of the left and right recessed platforms and the horizontal symmetrical center line of the positioning surface 94 is w / 2, where w is a fixed value; the longitudinal distance between the lateral edge 931 of the recessed platform and the horizontal reference plane of the positioning surface 94 is h, where h is a fixed value.

[0057] Optionally, the base 91 has a front reference surface, which is a flat surface, and the distance between the front reference surface and the recessed platform is d, where d is a fixed value.

[0058] By utilizing the inherent dimensions w, h, and d mentioned above, as well as the design dimensions of the annular cooler itself, a simple geometric relationship can be constructed. Then, by comparing the theoretical and measured values ​​of the relevant dimensions, the adjustment of the support roller can be guided, making the operation convenient and the calculation simple.

[0059] Alternatively, the sinking platform can be manufactured by machining. Machining ensures the precision of the sinking platform, thereby guaranteeing the accuracy of the aforementioned inherent dimensions w, h, and d.

[0060] Alternatively, the top surface of the base extends behind the wing plate to form a horizontal surface 95 for correcting the levelness of the auxiliary device. The horizontal surface 95 is used to place a spirit level, thereby correcting the levelness of the auxiliary device and ensuring it is in an ideal horizontal working state.

[0061] This embodiment also provides a method for installing and calibrating the support rollers of an annular cooler. The annular cooler has the following design dimensions: the distance L between the radial centerline of the support roller surface and the centerline of the rotary frame trolley; the distance R0 between the center of the annular cooler and the centerline of the rotary frame trolley (i.e., the annular cooler's center diameter); and the vertical offset e from the center of the annular cooler to the central axis of the support roller. The method includes:

[0062] S1. Select the roller mounting auxiliary device and determine the following inherent dimensions of the roller mounting auxiliary device: the distance d between the front reference surface and the recessed platform surface, the lateral distance w between the longitudinal edges 932 on the left and right sides, and the longitudinal distance h between the lateral edge 931 and the horizontal reference surface of the positioning surface 94, such as... Figure 5-6 As shown.

[0063] S2. A total station 10 is set on the central measuring platform 8 at the center of the annular cooler to cooperate with the auxiliary device for roller installation to detect and calibrate the installation dimensions of the support roller 1; wherein, the height of the total station 10 is adjustable as needed for dimension measurement, so as to facilitate the adjustment of the height for horizontal distance measurement.

[0064] S3. Place the auxiliary device for roller mounting stably and horizontally on the top of the support roller 1, such as... Figure 3 As shown, the wing plates 92 are symmetrically distributed on the left and right sides of the support roller 1, aligning the front reference surface of the base 91 with the front end surface of the support roller 1. Optionally, in this step, a spirit level can be placed on the horizontal plane 95 to detect and correct the levelness of the auxiliary device, ensuring that the auxiliary device is in an ideal horizontal working state.

[0065] S4. Adjustment and calibration of support roller height: The height of the transverse edge 931 is measured using a total station 10. Combined with the inherent dimension h, the actual installation height of the support roller 1 is calculated, and then the installation height of the support roller 1 is adjusted and calibrated. Specifically, since the dimensions of the auxiliary device and the support roller are fixed and universal, when the auxiliary device is placed on the support roller, the theoretical elevation of the horizontal reference plane can be determined. This theoretical elevation is applicable to all support rollers. After the height H' of the transverse edge 931 is measured, the actual height of the horizontal reference plane is H'-h. At this time, by comparing the difference between the theoretical elevation of the horizontal reference plane and the actual height (H'-h), the height that the support roller needs to be adjusted can be determined.

[0066] like Figure 5As shown, in this embodiment, a simpler calculation method is used for adjusting and calibrating the height of the support roller. In this embodiment, H' is approximated as h+H (although there is a partial overlap in the longitudinal height between the horizontal reference plane of the base and the top of the support roller, the overlap is controlled to the smallest possible extent by reasonably designing the positioning surface. Ultimately, this part of the height overlap can be ignored relative to the size of the support roller in the entire height. Therefore, the height of the transverse edge 931 can be approximated as h+H. Since H'-h is universal for all support rollers, approximating H'-h as the top elevation H does not affect the consistency of the final height adjustment of all support rollers, thus making the calculation more intuitive and convenient). Since the inherent size h is known, the measured value of the top elevation H of the support roller 1 can be obtained intuitively. By comparing the theoretical design value and the measured value of the top elevation H, the height that the support roller needs to be adjusted can be determined.

[0067] S5. Adjustment and calibration of the radial installation position of the support roller: Use a total station to measure the first distance K between the center of the annular cooler and the longitudinal edge line. Figure 6 The actual value of Kleft or Kright (theoretically Kleft = Kright) is combined with the inherent dimension w and the geometric relationship of the triangle to obtain the actual value of R0±L. Then, the radial installation position of the support roller is adjusted and calibrated based on the deviation between the actual value of R0±L and the design dimension. Specifically, in this embodiment, as... Figure 6 As shown, the actual value of K is obtained by measuring K_left and K_right and calculating the average value. The three dimensions of the triangle are formed by w / 2, R0±L, and K_left (or K_right). Given the fixed value of w / 2 and the actual value of K, the actual value of R0±L can be easily calculated, thereby adjusting and calibrating the radial installation position of the support roller.

[0068] S6. Adjustment and calibration of support roller deviation: By comparing the theoretical value of K with the actual value of K, the vertical deviation e is calibrated, and then the support roller is adjusted so that the vertical deviation e is 0. Specifically, in this embodiment, as follows... Figure 6-7 As shown, by measuring Kleft and Kright and then performing CAD layout, the value of e can be determined, and the support roller can then be adjusted.

[0069] Through the above steps, the detection and calibration of the three parameters H, L, and e of one support roller are completed. By analogy, the auxiliary device is placed on other support rollers respectively, thereby completing the installation and calibration of all support rollers.

[0070] Optionally, between steps S2 and S3, the following step is also included: obtaining the beam surface reference point R0. Since the auxiliary device provided by this invention can easily avoid visual obstruction from the inner ring column, it can also be used to quickly and easily obtain the beam surface reference point R0, thereby facilitating the radial positioning of the support roller using R0 and L. Figure 8-9 As shown, the specific operation is as follows: the auxiliary device for roller installation is placed on the plane beam used to install the support roller. The actual value of the second distance K' between the center of the annular cooler and the longitudinal edge is measured using a total station. Combined with the inherent dimensions d and w, the actual value of R0 is obtained according to the geometric relationship of triangles. Then, the placement position of the auxiliary device is adjusted according to the deviation between the actual value of R0 and the design dimension value, so that the front reference surface of the auxiliary device is aligned with the position of R0, thereby obtaining the beam surface R0 reference point on the plane beam.

[0071] It should be noted that although the platform itself must have a certain thickness when measuring values ​​such as d and K, and when calculating other dimensions using values ​​such as d and K, this thickness has little impact on the overall dimension calculation. Therefore, in order to simplify measurement and calculation, the thickness of the platform is ignored. When designing the platform, the thickness should be designed to be as thin as possible, just enough to cooperate with the measurement of the total station. The platform is then manufactured by using machining methods such as turning, milling, grinding, wire cutting, and electrical discharge machining to ensure the machining accuracy of the platform.

[0072] Alternatively, the support roller body may have the following standard dimensions: outer diameter 600 mm, thickness 160 mm. Thus, standard, universal auxiliary devices can be designed based on the standard dimensions of the support roller; for example, the thickness of the base of the auxiliary device can be designed to be the same as the thickness of the roller body, i.e. Figure 6 In the middle, t = 160mm, so that the entire base is placed exactly on the support roller; further, the dimension of d can be designed to be 1 / 2 of t, that is, d = 80mm; in addition, w can be 1150-1170mm, preferably 1160mm; h can be 130-150mm, preferably 140mm.

[0073] As shown in Table 1, compared with the support roller installation project in the prior art, the installation auxiliary device and installation calibration method for the ring cooler support rollers provided in this embodiment can directly observe the symmetrical platform of the auxiliary device from the center total station of the ring cooler, avoiding the line of sight obstruction of the inner ring column. This can transform the indirect observation of multiple measurement reference conversions into direct visual observation, making some undetectable items measurable. It can directly measure the entire ring from the center measuring platform, measuring all support rollers at once. The detection is intuitive and convenient, the detection efficiency is greatly improved, and higher reliability and accuracy can be guaranteed.

[0074] Table 1 Comparison of existing technologies and the present invention for support roller installation and calibration engineering

[0075]

[0076]

[0077] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. An auxiliary device for roller mounting, characterized in that, The auxiliary device for roller mounting includes: The base extends in a direction parallel to the axial direction of the roller body, and the bottom surface of the base is a positioning surface that fits with the outer circular surface of the roller body. A wing plate is disposed on the top surface of the base and extends to the left and right sides of the base, and the plane in which the wing plate is located is perpendicular to the axial direction of the roller body; The wing plate has a recessed platform on each of its left and right sides, thereby forming a recessed platform surface on the wing plate. The outer edge of the recessed platform has a transverse edge line and a longitudinal edge line. The wing plate has protrusions on its left and right sides respectively, and the countersink is machined on the front end surface of the protrusions. Both the wing plate and the recessed platform are symmetrically arranged relative to the base. The lateral distance between the longitudinal edges of the left and right recessed platforms is w, that is, the lateral parallel distance between the longitudinal edges of the left and right recessed platforms and the horizontal symmetrical center line of the positioning surface is w / 2, where w is a fixed value; the longitudinal distance between the lateral edge of the recessed platform and the horizontal reference plane of the positioning surface is h, where h is a fixed value. The sinking platform is manufactured by machining. The top surface of the base extends behind the wing plate to form a horizontal plane for correcting the horizontal state of the auxiliary device.

2. The auxiliary device for roller mounting according to claim 1, characterized in that, The positioning surface includes an inverted V-shaped groove in the middle and symmetrical horizontal reference surfaces extending from the bottom of the inverted V-shaped groove to the left and right sides. The projection of the horizontal symmetrical center line of the positioning surface coincides with the central axis of the roller.

3. The auxiliary device for roller mounting according to claim 1, characterized in that, The base has a front reference surface, which is a flat surface. The distance between the front reference surface and the recessed platform is d, where d is a fixed value.

4. A method for installing and calibrating the support rollers of an annular cooler, characterized in that, Using the auxiliary device for roller installation as described in claim 3, the annular cooler has the following design dimensions: the distance L between the radial centerline of the support roller surface and the centerline of the rotary frame trolley, the distance R0 between the center of the annular cooler and the centerline of the rotary frame trolley, and the vertical offset e from the center of the annular cooler to the central axis of the support roller; the method includes: S1. Select the roller mounting auxiliary device and determine the following inherent dimensions of the roller mounting auxiliary device: the distance d between the front reference surface and the countersunk surface, the lateral distance w between the longitudinal edges on the left and right sides, and the longitudinal distance h between the lateral edge and the horizontal reference surface of the positioning surface. S2. A total station is set at the center of the annular cooler to cooperate with the auxiliary device for roller installation to detect and calibrate the installation dimensions of the support roller; S3. Place the roller mounting auxiliary device horizontally and stably on the top of the support roller, so that the wing plates are symmetrically distributed on the left and right sides of the support roller, and align the front reference surface of the base with the front end surface of the support roller. S4. Adjustment and calibration of support roller height: The height of the transverse edge is measured using a total station. Combined with the inherent dimension h, the actual installation height of the support roller is calculated, and then the installation height of the support roller is adjusted and calibrated. S5. Adjustment and calibration of the radial installation position of the support roller: The actual value of the first distance K between the center of the ring cooler and the longitudinal edge is measured using a total station. Combined with the inherent dimension w, the actual value of R0±L is obtained according to the geometric relationship of triangles. Then, the radial installation position of the support roller is adjusted and calibrated according to the deviation between the actual value of R0±L and the design dimension value. S6. Adjustment and calibration of support roller deviation: By comparing the theoretical value and the actual value of the first distance K, the vertical deviation e is calibrated, and then the support roller is adjusted so that the vertical deviation e is 0.

5. The method for installing and calibrating the support rollers of the annular cooler according to claim 4, characterized in that, Between steps S2 and S3, the following steps are also included: obtaining the beam surface R0 reference point, specifically: placing the roller mounting auxiliary device on the plane beam used to install the support roller, using a total station to measure the actual value of the second distance K' between the center of the annular cooler and the longitudinal edge line, and combining the inherent dimensions d and w, according to the geometric relationship of triangles, to obtain the actual value of R0, and then adjusting the placement position of the auxiliary device according to the deviation between the actual value of R0 and the design dimension value, so that the front reference surface of the auxiliary device is aligned with the location of R0, thereby obtaining the beam surface R0 reference point on the plane beam.

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