A track-supported rotary frame running device and installation method

Abstract

The present invention relates to a running device for a supporting rail type rotary frame and an installation method thereof. The running device includes a supporting roller part arranged below the rotary frame, a centering wheel part arranged inside the rotary frame, and a driving device part arranged outside the rotary frame. The present invention also provides an installation method for installing the running device. The present invention utilizes the adjusting pads on the laterally open supporting roller base to quickly adjust the frustum-shaped supporting roller, so that the installation reference of the original supporting roller base remains unchanged, realizing the rapid and precise positioning of the supporting roller; by adjusting the bolts to tightly press the moving arm, the clearance between the centering wheel and the lateral slideway of the rotary frame is quickly adjusted, realizing the on-line dynamic adjustment and shortening the adjustment time; the driving device is installed on the slide rail and moves back and forth under the guidance of the slide rail support, solving the installation problem of the driving device in the limited space below the rotary frame.

Description

Technical Field

[0001] The present invention belongs to the technical field of annular furnaces, and particularly relates to a running device and an installation method for a supporting rail type rotary frame. Background Art

[0002] An annular furnace is used for cooling and discharging high-temperature sintered ore materials. Among them, the rotary frame is the core rotary moving component of the annular furnace. The rotary frame is installed on the supporting rollers through an annular track, driven by a driving device arranged outside the frame to make a rotary motion in a horizontal plane around a fixed rotary center, and the centering device arranged inside the frame ensures that the rotary frame does not shift during the motion.

[0003] The supporting rollers of the supporting rail type rotary frame are composed of a base and rollers with an integral structure. The height is adjusted through a gasket group, and they are installed on the frame through connecting bolts and positioning blocks. During the installation process, the supporting rollers are located below the rotary frame. Due to the integral structure design, they can only be removed as a whole during maintenance, and the original installation reference will be changed during the whole removal, and there is no positioning reference for reinstallation, resulting in great difficulty in adjusting the precise positioning again. For the new type of annular furnace, in order to eliminate the slipping phenomenon caused by different linear speeds of the inner and outer ring supporting rollers during the motion of the rotary frame, the supporting rollers are processed into a frustum shape. During the installation process, it is required that the upper surface of the supporting rollers is horizontal, which further increases the installation difficulty. The driving device is located below the steel structure platform, and the position space is limited and not convenient for installation. Similarly, due to the integral fixed and immovable structure, it is difficult to adjust the distance between the driving device and the driving pin shaft of the rotary frame once it is disassembled. The centering wheel can only adjust the assembly accuracy during installation through a preset adjustment space, and then it is fixed on the steel structure support through bolts and cannot move. Therefore, the side blocking force of the centering roller cannot be adjusted and controlled anymore. When the rotary frame deviates, the centering wheel is subjected to too much force and is likely to cause deformation of the steel structure support, and during maintenance, it also needs to be removed as a whole to be able to adjust the position again.

[0004] The existing maintenance process of the supporting rail type rotary frame is cumbersome. If the rotary frame needs to be adjusted, it is necessary to disassemble and reinstall the supporting rollers, the driving device and the centering wheel to adjust the position. As a large-scale machine, the maintenance of the running device of the supporting rail type rotary frame involves a large amount of work and cannot be carried out during the short interval of hot shutdown. It can only be carried out after the cold shutdown and complete shutdown, resulting in serious waste of working hours. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a running device and an installation method for a supporting rail type rotary frame, which can meet the precise and rapid installation requirements of the running device of the supporting rail type rotary frame, and at the same time enable the running device to be adjusted during the short interval of hot shutdown.

[0006] The technical solution adopted by the present invention to solve its technical problems is: to provide a rail-supported rotary frame running device, which includes a support roller part arranged below the rotary frame, a centering wheel part arranged inside the rotary frame, and a driving device part arranged outside the rotary frame.

[0007] The support roller part includes a support roller base, the lower part of the support roller base is fixed on the base by bolts, the bottom surface of the support roller base is inclined so that the upper top surface of the support roller remains horizontal, an opening groove for detaching the support roller is arranged on the side surface of the support roller base, a locking block and a slider are arranged at the opening of the opening groove, an adjusting pad is arranged between the slider and the support roller base, the support roller is of a frustum-shaped structure, the small head end faces the rotary center, bearing seats are arranged at both ends of the support roller, and after installation, the bearing seats are in close contact with the slider.

[0008] The centering wheel part includes a centering wheel base arranged on the base, a fixed pin, a compression cylinder and a bolt base are fixed on the centering wheel base, a moving arm is sleeved outside the fixed pin, a centering wheel which is tangent to the lateral slideway of the rotary frame and can rotate is arranged on one side of the moving arm, one end of the moving arm far away from the rotary frame abuts against an adjusting bolt screwed on the bolt base, and the other end is connected with the telescopic head of the compression cylinder.

[0009] The driving device part includes a driving device base arranged on the base, a slide rail support is arranged on the driving device base, a slide rail facing the rotary center of the rotary frame is arranged on the slide rail support, a driving device matched with the rotary frame is arranged on the slide rail, and the end of the driving device is connected with a hydraulic cylinder.

[0010] Further, flat pads, adjusting pads and wedge blocks are arranged between the support roller base and the base, a wedge block is arranged above the flat pad on the side close to the rotary center, the slope of the wedge block is equal to half of the taper of the support roller, the wedge block is arranged on the side close to the rotary center, and the taper of the support roller on the outer ring of the rotary center is smaller than that of the support roller on the inner ring.

[0011] Further, the compression cylinder is a disc spring compression cylinder, and the axis of the disc spring compression cylinder faces the rotary center of the rotary frame.

[0012] Further, the slide rail is arranged below the rotary frame, and the driving device includes a driving gear matched with the driving pin shaft on the outer side of the rotary frame.

[0013] The technical solution adopted by the present invention to solve its technical problems also provides an installation method using any one of the above-mentioned rail-supported rotary frame running devices, including the following steps:

[0014] S1. Fix the support roller base on the base by bolts, place a flat pad and an adjustment pad between the support roller base and the base, and place a wedge block on the adjustment pad on the side close to the rotation center to adjust the support roller base;

[0015] S2. The truncated cone-shaped support roller is mounted on the bearing seat, and the open groove is embedded in the support roller base. The horizontality, center position and elevation of the top surface of the support roller are adjusted by changing the adjustment pad between the slider and the support roller base to meet the support roller installation requirements;

[0016] S3. Fix the centering wheel base on the base by bolts, put the centering wheel on the boom, put the boom on the fixing pin on the centering wheel base, make one end of the boom against the adjustment bolt on the centering wheel base, and connect the other end of the boom to the telescopic head of the disc spring compression cylinder on the centering wheel base;

[0017] S4, installing the revolving frame onto the supporting roller;

[0018] S5, adjusting the position of the boom by screwing the adjusting bolts on the bolt base, and adjusting the gap between the centering wheel and the lateral slideway of the slewing frame;

[0019] S6. Fix the base of the driving device on the base by bolts, fix the slide rail support and the hydraulic cylinder on the base of the driving device by bolts, and adjust the center position of the slide rail support;

[0020] S7, introducing the slide rail into the slide rail support from the bottom of the revolving frame, installing a driving device on the slide rail and connecting it to the hydraulic cylinder, and engaging the driving device with a driving pin shaft on the outer side of the revolving frame through the hydraulic cylinder;

[0021] S8. When the slewing frame stops due to heat, the jack is used to lift the slewing frame vertically upward to separate it from the support rollers, and the support rollers can be removed through the opening grooves for replacement and repair. The centering wheel can be replaced and repaired by turning the adjusting bolts to separate the centering wheel from the slewing frame; the driving device can be replaced and repaired by retracting the hydraulic cylinder.

[0022] In S1, the inner and outer circles of support rollers are arranged with the rotation center of the support rail type revolving frame as the center of the circle. In S2, when the elevation is adjusted, the elevation of the inner circle support roller is 3-5mm lower than that of the outer circle support roller.

[0023] In S5, the adjusting bolt is turned clockwise to push the movable arm, which drives the movable arm to compress the disc spring compression cylinder, so that the centering wheel is away from the lateral slideway of the rotating frame until the gap reaches 5mm, and the adjustment is stopped and the adjusting bolt is locked.

[0024] Beneficial effects

[0025] The present invention provides a track-supported rotary frame running device and an installation method. Compared with the traditional track-supported rotary frame running device, the slider on the side opening of the support roller base is used to quickly adjust the frustum-shaped support roller, so that the installation reference of the original support roller base remains unchanged, realizing the rapid and accurate positioning of the support roller; by adjusting the bolt to tightly press the moving arm, the clearance between the centering wheel and the side slideway of the rotary frame is quickly adjusted, realizing the on-line dynamic adjustment and shortening the adjustment time; the driving device is installed on the slide rail and moves back and forth under the guidance of the slide rail support, solving the installation problem of the driving device in the limited space below the rotary frame. Description of the drawings

[0026] Figure 1 It is a schematic structural diagram of a track-supported rotary frame and a running device.

[0027] Figure 2 It is Figure 1 The three-dimensional enlarged structural diagram of the support roller part in

[0028] Figure 3 It is Figure 1 The side view enlarged structural diagram of the support roller part in

[0029] Figure 4 It is Figure 1 The enlarged structural diagram of the centering wheel part in

[0030] Figure 5 It is Figure 1 The enlarged structural diagram of the driving device part in

[0031] Among them, 1 - support roller; 2 - support roller base; 3 - rotation center; 4 - wedge block; 5 - slider; 6 - upper top surface; 7 - locking block; 8 - rotary frame; 9 - centering wheel base; 10 - centering wheel; 11 - fixing pin; 12 - disc spring compression cylinder; 13 - moving arm; 14 - side slideway; 15 - adjusting bolt; 16 - driving device base; 17 - slide rail support; 18 - slide rail; 19 - driving device; 20 - hydraulic cylinder; 21 - driving pin shaft; 22 - adjusting pad; 23 - flat pad.

[0032] The same reference numerals in each figure represent the same component. Specific embodiments

[0033] The following combines specific embodiments to further elaborate on the present invention. It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of this application.

[0034] As shown Figure 1 in the figure, the present invention provides a running device for a supporting rail type rotary frame, which includes a supporting roller part arranged below the rotary frame 8, a centering wheel part arranged inside the rotary frame 8, and a driving device part arranged outside the rotary frame 8.

[0035] As shown Figure 2 and 3 in the figure, the supporting roller part includes a supporting roller base 2, the lower part of the supporting roller base 2 is fixed on the base by bolts, the bottom surface of the supporting roller base 2 is inclined so that the upper top surface 6 of the supporting roller 1 remains horizontal, an opening groove for detaching the supporting roller 1 is arranged on the side surface of the supporting roller base 2, a locking block 7 and a slider 5 are arranged at the opening of the opening groove, an adjusting pad 22 is arranged between the slider 5 and the supporting roller base 2, the supporting roller 1 is of a frustum of a cone structure, the small head end faces the rotary center 3, and bearing seats are arranged at both ends of the supporting roller 1, and after being installed in place, the bearing seats are in close fit with the slider 5.

[0036] As shown Figure 4 in the figure, the centering wheel part includes a centering wheel base 9 arranged on the base, a fixed pin 11, a compression cylinder and a bolt base are fixed on the centering wheel base 9, a moving arm 13 is sleeved outside the fixed pin 11, a centering wheel 10 which is tangent to and rotatable with the lateral slideway 14 of the rotary frame 8 is arranged on one side of the moving arm 13, one end of the moving arm 13 far from the rotary frame 8 abuts against an adjusting bolt 15 screwed on the bolt base, and the other end is connected with the telescopic head of the compression cylinder.

[0037] As shown Figure 5 in the figure, the driving device part includes a driving device base 16 arranged on the base, a slide rail support 17 is arranged on the driving device base 16, a slide rail 18 facing the rotary center 3 of the rotary frame 8 is arranged on the slide rail support 17, a driving device 19 matched with the rotary frame 8 is arranged on the slide rail 18, and the end of the driving device base 16 is connected with a hydraulic cylinder 20.

[0038] A group of height-adjustable flat pads 23 and adjusting pads 22 are arranged between the supporting roller base 2 and the base, and the height is controlled by changing their quantity or thickness. A wedge block 4 is arranged above the flat pad 23 on the side close to the rotary center 3, and the slope of the wedge block 4 is equal to half of the taper of the supporting roller 1, and the wedge block 4 is arranged on the side close to the rotary center 3.

[0039] The compression cylinder is a disc spring compression cylinder 12, and the axis of the disc spring compression cylinder 12 faces the rotary center 3 of the rotary frame 8.

[0040] The slide rail 18 is disposed below the revolving frame 8 , and the driving device 19 includes a driving gear matched with a driving pin shaft 21 on the outer side of the revolving frame 8 .

[0041] The present invention also provides a method for installing the above-mentioned support rail type revolving frame operating device, comprising the following steps:

[0042] S1. Fix the support roller base 2 on the base by bolts, place a flat pad 23 and an adjustment pad 22 between the support roller base 2 and the base, and place a wedge block 4 on the flat pad 23 on the side close to the rotation center 3;

[0043] S2. The truncated cone-shaped support roller 1 is mounted on the bearing seat, and the open groove is embedded in the support roller base 2. The horizontality, center position and elevation of the top surface 6 of the support roller 1 are adjusted by changing the adjustment pad 22 between the slider 5 and the support roller base 2 to meet the installation requirements of the support roller 1;

[0044] S3. Fix the centering wheel base 9 on the base by bolts, put the centering wheel 10 on the boom 13, put the boom 13 on the fixing pin 11 on the centering wheel base 9, make one end of the boom 13 butt against the bolt base on the centering wheel base 9, and connect the other end of the boom 13 to the telescopic head of the disc spring compression cylinder 12 on the centering wheel base 9;

[0045] S4, installing the revolving frame 8 onto the supporting roller 1;

[0046] S5, adjusting the position of the movable arm 13 by screwing the adjusting bolt 15 on the bolt base, and adjusting the gap between the centering wheel 10 and the lateral slideway 14 of the revolving frame 8;

[0047] S6. Fix the driving device base 16 on the base by bolts, fix the slide rail support 17 and the hydraulic cylinder 20 on the driving device base 16 by bolts, and adjust the center position of the slide rail support 17;

[0048] S7, guide the slide rail 18 into the slide rail support 17 from the bottom of the revolving frame 8, install the driving device 19 on the slide rail 18, and connect it to the hydraulic cylinder 20, and mesh the driving device 19 with the driving pin 21 on the outer side of the revolving frame 8 through the hydraulic cylinder 20;

[0049] S8. When the rotating frame 8 stops due to heat, the rotating frame 8 is lifted vertically upward by a jack to separate it from the support roller 1, and the support roller 1 can be removed through the opening groove for replacement and maintenance; the centering wheel 10 can be replaced and maintained by screwing the adjusting bolt 15 to separate the centering wheel 10 from the rotating frame 8; the driving device 19 can be replaced and maintained by retracting the hydraulic cylinder 20.

[0050] Among them, in S1, with the rotation center 3 of the rail-mounted rotary frame 8 as the center of a circle, two inner and outer circles of support roller parts are arranged respectively. In S2, by arranging the slider 5 and the adjusting pad 22 in the opening groove, only the locking block 7 located at the opening of the opening groove needs to be disassembled, and the adjusting pad 22 between the inner slider 5 and the support roller base 2 can be replaced to perform rapid elevation adjustment.

[0051] In S2, when performing elevation adjustment, the elevation of the inner ring support roller 1 is 3 - 5 mm lower than that of the outer ring support roller 1. Specifically, the extension line of the roller surface of the support roller 1 should converge to the rotation center 3 of the rotary frame 8, the horizontal adjustment accuracy of its upper top surface 6 is 0.1 mm / m, the center positioning accuracy is ±1 mm, and the elevation adjustment accuracy is ±0.5 mm.

[0052] In S3, with the fixed pin 11 as the positioning reference, measure its position deviation from the rotation center 3, the center positioning deviation accuracy is ±1 mm, and the elevation adjustment accuracy is ±0.5 mm.

[0053] In S5, first, the deviation of the center coincidence between the center of the centering wheel 10 and the lateral slideway 14 of the rotary frame 8 is controlled within 2 - 3 mm. Rotate the adjusting bolt 15 clockwise to push the moving arm 13, driving the moving arm 13 to compress the disc spring cylinder 12, so that the centering wheel 10 installed on the moving arm 13 moves away from the lateral slideway 14 of the rotary frame 8 until the gap reaches 5 mm, then stop the adjustment and lock the adjusting bolt 15.

[0054] In S6, first install the driving device base 16, then install the slide rail support 17 on the driving device base 16, adjust the slot spacing of the slide rail support 17 so that its deviation is less than ±1 mm, and adjust the center elevation of the slot of the slide rail support 17 and the center elevation of the driving pin 21 of the rail-mounted rotary frame 8 so that their deviation is less than ±0.5 mm.

[0055] In S7, the slide rail 18 and the side of the driving device 19 are connected by countersunk head socket head cap screws. After tightening, the driving device 19 can move back and forth between the slide rail supports 17 under the guidance of the slide rail 18. One end of the hydraulic cylinder 20 is installed on the driving device 19, and the other end is installed on the driving device base 16 and limited by a stop block in the front and back moving direction of the driving device 19.

Claims

1. A track-supported rotary frame running device, comprising a support roller part arranged below the rotary frame (8), a centering wheel part arranged inside the rotary frame (8), and a driving device part arranged outside the rotary frame (8). It is characterized in that the support roller part includes a support roller base (2), the lower part of the support roller base (2) is fixed on the base by bolts, the bottom surface of the support roller base (2) is inclined so that the upper top surface (6) of the support roller (1) remains horizontal, an opening groove for detaching the support roller (1) is arranged on the side surface of the support roller base (2), a locking block (7) and a slider (5) are arranged at the opening of the opening groove, an adjusting pad (22) is arranged between the slider (5) and the support roller base (2), the support roller (1) is of a frustum-shaped structure, the small head end faces the rotary center (3), and bearing seats are arranged at both ends of the support roller (1), and after being installed in place, the bearing seats are closely attached to the slider (5); the centering wheel part includes a centering wheel base (9) arranged on the base, a fixed pin (11), a compression cylinder and a bolt base are fixed on the centering wheel base (9), a moving arm (13) is sleeved outside the fixed pin (11), a centering wheel (10) which is tangent to and rotatable with the lateral slideway (14) of the rotary frame (8) is arranged on one side of the moving arm (13), one end of the moving arm (13) far away from the rotary frame (8) abuts against an adjusting bolt (15) screwed on the bolt base, and the other end is connected to the telescopic head of the compression cylinder; the driving device part includes a driving device base (16) arranged on the base, a slide rail support (17) is arranged on the driving device base (16), a slide rail (18) facing the rotary center (3) of the rotary frame (8) is arranged on the slide rail support (17), a driving device (19) matching with the rotary frame (8) is arranged on the slide rail (18), and the end of the driving device (19) is connected to a hydraulic cylinder (20); a flat pad (23), an adjusting pad (22) and a wedge block (4) are arranged between the support roller base (2) and the base, the wedge block (4) is arranged above the flat pad (23) on the side close to the rotary center (3), the slope of the wedge block (4) is equal to half of the taper of the support roller (1), the wedge block (4) is arranged on the side close to the rotary center (3), and the taper of the support roller (1) on the outer ring of the rotary center (3) is smaller than that of the support roller (1) on the inner ring; the compression cylinder is a disc spring compression cylinder (12), and the axis of the disc spring compression cylinder (12) converges at the rotary center (3) of the rotary frame (8); the slide rail (18) is arranged below the rotary frame (8), and the driving device (19) includes a driving gear matching with the driving pin shaft (21) on the outer side of the rotary frame (8).

2. An installation method for a track-supported rotary frame running device It is characterized in that a track-supported rotary frame running device as described in claim 1 is used, and it includes the following steps: S1. Fixing the support roller base (2) on the base by means of bolts, placing a flat pad (23) and an adjustment pad (22) between the support roller base (2) and the base, and placing a wedge block (4) on the adjustment pad (22) on the side close to the rotation center (3) to adjust the support roller base (2); S2, mounting the truncated cone-shaped support roller (1) on the bearing seat, inserting the open groove into the support roller base (2), and adjusting the horizontality, center position and elevation of the top surface (6) of the support roller (1) by changing the adjustment pad (22) between the slider (5) and the support roller base (2) to meet the installation requirements of the support roller (1); S3. Fix the centering wheel base (9) on the base by bolts, fit the centering wheel (10) onto the movable arm (13), fit the movable arm (13) onto the fixing pin (11) on the centering wheel base (9), abut one end of the movable arm (13) against the adjusting bolt (15) on the centering wheel base (9), and connect the other end of the movable arm (13) to the telescopic head of the disc spring compression cylinder (12) on the centering wheel base (9); S4, installing the revolving frame (8) onto the supporting roller (1); S5, adjusting the position of the movable arm (13) by screwing the adjustment bolt (15) on the bolt base, and adjusting the gap between the centering wheel (10) and the lateral slideway (14) of the revolving frame (8); S6. Fix the drive device base (16) on the base by bolts, fix the slide rail support (17) and the hydraulic cylinder (20) on the drive device base (16) by bolts, and adjust the center position of the slide rail support (17); S7, introducing the slide rail (18) from the bottom of the revolving frame (8) into the slide rail support (17), installing a driving device (19) on the slide rail (18) and connecting it to the hydraulic cylinder (20), and engaging the driving device (19) with a driving pin (21) on the outer side of the revolving frame (8) through the hydraulic cylinder (20); S8. When the revolving frame (8) is stopped due to heat, the revolving frame (8) is lifted vertically upward by a jack so that it is out of contact with the support roller (1), and the support roller (1) can be removed through the opening groove for replacement and repair; the centering wheel (10) can be replaced and repaired by turning the adjusting bolt (15) so that the centering wheel (10) is separated from the revolving frame (8); and the driving device (19) can be replaced and repaired by retracting the hydraulic cylinder (20).

3. The method for installing a support rail type revolving frame operating device according to claim 2, It is characterized in that In S1, the inner and outer circles of support rollers are arranged with the rotation center (3) of the support rail type revolving frame (8) as the center of the circle. In S2, when the elevation is adjusted, the elevation of the inner circle support roller (1) is 3-5 mm lower than the elevation of the outer circle support roller (1).

4. The method for installing a support rail type revolving frame operating device according to claim 2, It is characterized in that In S5, turn the adjusting bolt (15) clockwise to push the boom (13), driving the boom (13) to compress the disc spring cylinder (12), so that the centering wheel (10) moves away from the lateral slideway (14) of the slewing frame (8). Stop adjusting until the gap reaches 5 mm, and lock the adjusting bolt (15).

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