A super nut disassembly and assembly device with automatic positioning

Abstract

The present application belongs to the technical field of super nut disassembly and assembly, and aims to reduce the workload of manual positioning of existing super nuts, and reduce the probability of the top push bolts being bitten during the removal process. An automatic positioning super nut disassembly and assembly device is disclosed, wherein a mounting seat is arranged on the disassembly and assembly support frame, and an outer sleeve and a gear box are arranged on the mounting seat. The input end of the gear box is connected to the servo motor and the output end is connected to the transmission shaft. A fixed sleeve and a positioning sleeve are arranged in the outer sleeve. A disassembly and assembly column that meshes with the transmission shaft is movably arranged on the fixed sleeve, and the bottom end of the disassembly and assembly column extends into the positioning sleeve. A second spring is arranged on the disassembly and assembly column, and an auxiliary motor is arranged on one side of the mounting seat, and the auxiliary motor is connected to the transmission shaft in a transmission manner. A torque motor that is connected to the positioning sleeve in a transmission manner is arranged on one side of the bottom of the outer sleeve. The present application can synchronously disassemble and assemble six top push bolts, reduce the probability of the top push bolts being bitten during the removal process, and improve the disassembly and assembly efficiency, saving disassembly and assembly time.

Description

Technical Field

[0001] The present application belongs to the technical field of super nut disassembly and assembly, and in particular to an automatic positioning super nut disassembly and assembly device. Background Art

[0002] The multi-jackbolt pre-tightening technology of the Super Nut allows personnel to use simple hand tools to safely tighten large-size bolts with precise pre-tightening force. The existing technology uses manual positioning and removal of jackbolts one by one, which is time-consuming and labor-intensive, affecting the maintenance progress.

[0003] In the process of removing the jack bolts with super nuts, in order to avoid damage to a single jack bolt, the principle of gradual unloading must be followed during removal, and precise steps are required when removing the preloader. The jack bolts must be loosened gradually, and a single jack bolt must not be completely loosened under any circumstances to prevent other jack bolts from bearing the full load and becoming stuck and unable to be removed. Once stuck, the nut needs to be destructively cut and removed with tools such as a nut splitter, which further increases the difficulty of the operation and slows down the maintenance progress.

[0004] Compared with the super nut disassembly guide of "loosening the push bolts 90° one by one along the circumference, and reciprocating until the main bolts are unloaded", the method of removing all the push bolts at one time is more scientific and efficient, and can effectively reduce the probability of the push bolts being stuck during the removal process one by one.

[0005] Chinese patent CN219747792U discloses a super nut fastening device, which provides the same pre-tightening force to multiple jack bolts by setting fasteners and tightening the super nut with the help of an electric wrench. However, this method is only for the tightening of jack bolts, and still requires manual positioning and alignment, which is inefficient. In addition, Chinese patent CN112548948B discloses a super nut disassembly and assembly tool and disassembly and assembly method, which realizes the symmetrical disassembly and assembly of the jack bolts of the super nut by setting a gear meshing mechanism, a ratchet mechanism, etc., and uniform force. However, this method requires manual alignment and positioning, which is time-consuming and labor-intensive, and can only act on two jack bolts at a time, which is inefficient.

[0006] It can be seen that the existing technology does not meet the requirements of high efficiency and anti-seizure on-site implementation. Therefore, it is necessary to design and develop a super nut disassembly and assembly device that is efficient, can automatically position, and can prevent the push bolts from seizing. Summary of the invention

[0007] The purpose of the present application is to provide an automatically positioned super nut disassembly and assembly device, which can quickly realize the synchronous disassembly and assembly of all six jack bolts at any installation angle, reduce the huge workload caused by the manual positioning of the existing super nuts and the disassembly and assembly of each jack bolt one by one, reduce the probability of the jack bolts being stuck during the disassembly process, ensure that each jack bolt is evenly stressed, and improve the disassembly and assembly efficiency.

[0008] In order to achieve the above objectives, this application provides the following technical solutions:

[0009] The present application provides an automatic positioning super nut disassembly and assembly device, comprising a disassembly and assembly support frame, the disassembly and assembly support frame is provided with a mounting seat, the bottom of the mounting seat is provided with an outer cylinder sleeve with a bottom opening, and the upper part is provided with a gear box; the input end of the gear box is connected to a servo motor, and the output end is connected to a transmission shaft that vertically passes through the mounting seat; a fixed sleeve movably connected to the transmission shaft is provided inside the outer cylinder sleeve, and a positioning cylinder is movably installed at the bottom, and a hole is opened in the positioning cylinder; a disassembly and assembly column that meshes with the transmission shaft is movably installed on the fixed sleeve, the bottom end of the disassembly and assembly column extends into the positioning cylinder, and a second spring for pressing the bottom of the disassembly and assembly column downward is provided on the disassembly and assembly column; an auxiliary motor is installed on one side of the mounting seat, and the auxiliary motor is transmission-connected to the transmission shaft, and a torque motor is provided on one side of the bottom of the outer cylinder sleeve, and the torque motor is transmission-connected to the positioning cylinder.

[0010] In some embodiments, the disassembly and assembly support frame includes a plurality of circular arc slide rails forming a circular ring, a connecting plate is provided at the end of the circular arc slide rail, adjacent arc slide rails are connected by the connecting plate, a positioning sleeve corresponding to the super nut is provided on the inner side of the bottom of the circular arc slide rail, and a fixed seat is slidably installed on the top, and the mounting seat is fixed on the top of the fixed seat.

[0011] In some embodiments, a hexagonal bolt groove corresponding to the push bolt is provided at the bottom of the disassembly column, a sleeve is provided outside the disassembly column, a ring fixedly connected to the disassembly column is provided at the bottom of the sleeve, and the second spring is arranged between the sleeve and the ring.

[0012] In some embodiments, the bottom of the transmission shaft is movably connected to the center of the fixed sleeve through a bearing, and the transmission shaft is equipped with a transmission gear through another bearing so that the transmission gear and the transmission shaft can rotate separately, and a planetary gear is arranged on the outside of the transmission shaft, and the planetary gear is arranged between the transmission gear and the fixed sleeve.

[0013] In some embodiments, the transmission gear includes a first drive wheel and a second drive wheel that are coaxially arranged, and the first drive wheel is located on the upper surface of the second drive wheel. A mounting groove is provided on one side of the top of the outer sleeve, and a first gear is movably installed in the mounting groove. The first gear is connected to the first drive wheel through a synchronous belt transmission, and the output end of the auxiliary motor is fixedly connected to the first gear.

[0014] In some embodiments, the first gear and the first driving wheel have the same tooth specifications and spacing, and the inner side of the synchronous belt is provided with teeth that mesh with the first gear and the first driving wheel.

[0015] In some embodiments, a third driving wheel meshing with the planetary gear is installed on the top of the disassembly and assembly column, and a fourth driving wheel meshing with the second driving wheel is coaxially arranged on the top of the third driving wheel.

[0016] In some embodiments, teeth are provided on the outside of the positioning cylinder, a horizontal bottom cover is provided on one side of the bottom of the outer cylinder sleeve, a top cover is installed on the bottom cover, a second gear and a third gear are installed inside the bottom cover, the third gear is respectively meshed with the teeth of the positioning cylinder and the second gear, and the output end of the torque motor is fixedly connected to the second gear.

[0017] In some embodiments, a slot is provided at the top center of the positioning cylinder, a blocking block is provided at the inner bottom of the slot, a guide cylinder is provided at the bottom of the fixing sleeve, the bottom of the guide cylinder extends into the slot, a spring limiting shaft is slidably installed in the guide cylinder, and a pressure ring corresponding to the blocking block is provided at the bottom of the spring limiting shaft.

[0018] In some embodiments, the positioning cylinder is connected to the outer cylinder sleeve via a first spring, and the first spring is located at the top of the spring limiting shaft.

[0019] Compared with the prior art, the automatic positioning super nut disassembly and assembly device provided by the present application has the following beneficial effects:

[0020] The present application can quickly realize the synchronous disassembly and assembly of all six jacking bolts at any installation angle, reduce the huge workload caused by manual positioning and disassembly and assembly of each jacking bolt one by one, reduce the probability of the jacking bolts being stuck during the disassembly process, ensure that each jacking bolt is evenly stressed, and improve the disassembly and assembly efficiency.

[0021] The present application can use a torque motor to automatically fit the six holes on the sleeve onto the push bolts of the super nut, and can use an auxiliary motor to make the bottom bolt groove of the disassembly column fit tightly with the push bolt. The servo motor is used to drive the six disassembly columns to rotate synchronously through the planetary gears at the bottom of the transmission shaft, and the six push bolts are removed synchronously through the disassembly columns to avoid the push bolts from being stuck, thereby improving the disassembly efficiency and saving time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solution of the present application, the following is a brief introduction to the drawings required for the technical description.

[0023] Figure 1 A schematic diagram of the use status of the automatic positioning super nut disassembly and assembly device provided in an embodiment of the present application;

[0024] Figure 2 for Figure 1 Schematic diagram of the structure after removing the steam guide pipe of the low-pressure cylinder of the steam turbine;

[0025] Figure 3 A schematic diagram of the structure of the disassembly and assembly support frame provided in an embodiment of the present application;

[0026] Figure 4 A schematic diagram of disassembly and assembly components provided in an embodiment of the present application;

[0027] Figure 5 for Figure 4 A cross-sectional view of

[0028] Figure 6 for Figure 4 Side view of

[0029] Figure 7 for Figure 4 Schematic diagram of the structure after removing the servo motor and gearbox;

[0030] Figure 8 for Figure 7 A cross-sectional view of

[0031] Fig. 9 for Figure 7 Schematic diagram of the internal structure;

[0032] Fig.10 A schematic diagram of the structure of a super nut provided by the prior art.

[0033] Description of reference numerals:

[0034] 1. Arc slide rail; 2. Mounting seat; 3. Fixed seat; 4. Connecting plate; 5. Positioning sleeve; 6. Servo motor; 7. Gear box; 8. Auxiliary motor; 9. Torque motor; 10. Outer sleeve; 11. Transmission shaft; 1101. Planetary gear; 12. First gear; 13. Synchronous belt; 14. Transmission gear; 1401. First drive wheel; 1402. Second drive wheel; 15. Disassembly column; 1501. Third drive wheel; 1 502, fourth driving wheel; 16, positioning cylinder; 1601, slot; 1602, block; 17, second gear; 18, third gear; 19, annular plate; 20, fixing sleeve; 2001, guide cylinder; 21, first spring; 22, spring limit shaft; 23, pressure ring; 24, second spring; 25, bottom cover; 26, top cover; 27, steam guide pipe of low-pressure cylinder of steam turbine; 28, super nut; 2801, thrust bolt. DETAILED DESCRIPTION

[0035] The following is further explained in detail through specific implementation methods.

[0036] In order to facilitate understanding, we first briefly introduce the super nut. Fig.10 As shown, six push bolts 2801 are arranged above the super nut 28, and the push bolts 2801 are hexagonal structures.

[0037] like Figures 1 to 9 As shown, an embodiment of the present application provides an automatically positioned super nut disassembly and assembly device, including a disassembly and assembly support frame fixed around the steam guide pipe 27 of the low-pressure cylinder of the steam turbine, four mounting seats 2 are slidably installed on the disassembly and assembly support frame, an outer cylinder sleeve 10 with a bottom opening is fixedly installed at the bottom of the mounting seat 2, a gear box 7 is installed on the upper surface of the mounting seat 2, the input end of the gear box 7 is connected to the servo motor 6, and the output end of the gear box 7 is connected to the transmission shaft 11 vertically penetrating the mounting seat 2.

[0038] A horizontal fixing sleeve 20 is fixedly installed inside the outer sleeve 10, and the bottom of the transmission shaft 11 is movably connected to the top of the fixing sleeve 20. A horizontal positioning sleeve 16 is movably installed at the bottom of the outer sleeve 10. Six holes corresponding to the jacking bolts 2801 are opened at the bottom of the positioning sleeve 16. The positioning sleeve 16 and the outer sleeve 10 are connected by a first spring 21. Six disassembly and assembly posts 15 meshing with the transmission shaft 11 are movably installed on the fixing sleeve 20. The bottom end of the disassembly and assembly post 15 extends into the positioning sleeve 16, and a second spring 24 for pressing the bottom of the disassembly and assembly post 15 downward is provided on the disassembly and assembly post 15. The function of the first spring 21 is to bounce the positioning sleeve 16 down after the positioning sleeve 16 finds the position of the six jacking bolts 2801, so that the jacking bolts 2801 are inserted into the holes of the positioning sleeve; the function of the second spring 24 is to bounce the disassembly and assembly post 15 down so that it is aligned with the hexagonal hole of the jacking bolt, thereby synchronously driving the jacking bolt 2801.

[0039] Preferably, the bottom of the disassembly column 15 is provided with a hexagonal bolt groove corresponding to the push bolt 2801, and a sleeve is provided outside the disassembly column 15. The bottom of the sleeve is provided with a collar fixedly connected to the disassembly column 15, and the second spring 24 is located between the sleeve and the collar. The function of the sleeve is to limit the top position of the second spring 15 and enable the disassembly column 15 to rotate and revolve around the transmission shaft 11; the function of the collar is to limit the bottom position of the second spring 15 to ensure that the compression direction of the spring is vertical.

[0040] An auxiliary motor 8 is fixedly mounted on one side of the mounting seat 2 , and the auxiliary motor 8 is transmission-connected to the transmission shaft 11 . A torque motor 9 is arranged on one side of the bottom of the outer sleeve 10 , and the torque motor 9 is transmission-connected to the positioning sleeve 16 .

[0041] like Figure 3 As shown, the disassembly and assembly support frame includes a plurality of circular arc slide rails 1 forming a circular ring, a connecting plate 4 is provided at the end of the circular arc slide rail 1, the circular arc slide rails 1 are bolted together by the connecting plate 4, a positioning sleeve 5 corresponding to the super nut 28 is provided on the inner side of the bottom of the circular arc slide rail 1, a fixing seat 3 is slidably installed on the top of the circular arc slide rail 1, and the mounting seat 2 is fixed on the top of the fixing seat 3.

[0042] Preferably, a connecting hole is provided on the connecting plate 4. When in use, the fixing seat 3 is clamped on the circular arc slide rail 1 from the end of the circular arc slide rail 1, and the connecting plate 4 at the end of the circular arc slide rail 1 can be fixed together through the cooperation of the bolt and the connecting hole, so that several circular arc slide rails 1 can be assembled into a complete annular disassembly support frame; when installing, the positioning sleeve 5 is fixedly installed on the super nut 28, and all the circular arc slide rails 1 are connected together through the connecting plate 4, and the positioning sleeve 5 is limited and fixed by the super nut 28, and then the disassembly support frame is installed to the outside of the low-pressure cylinder steam guide pipe 27 of the steam turbine.

[0043] like Figure 8 and Fig. 9 As shown, the bottom of the transmission shaft 11 is movably connected to the center of the fixed sleeve 20 through a bearing. With this arrangement, the transmission shaft 11 can be limited and fixed by the fixed sleeve 20, and the bearing is used to enable the transmission shaft 11 to rotate freely. A transmission gear 14 is installed on the transmission shaft 11 through the bearing. With this arrangement, the rotation of the transmission gear 14 and the rotation of the transmission shaft 11 itself do not affect each other by setting the bearing, so that the transmission gear 14 and the transmission shaft 11 can rotate separately, and a planetary gear 1101 is fixedly arranged on the outside of the transmission shaft 11, and the planetary gear 1101 is located between the transmission gear 14 and the fixed sleeve 20.

[0044] like Fig. 9As shown, the transmission gear 14 includes a first driving wheel 1401 and a second driving wheel 1402 which are coaxially arranged, and the first driving wheel 1401 is located on the upper surface of the second driving wheel 1402. A mounting groove is provided on one side of the top of the outer sleeve 10, and a first gear 12 is movably installed in the mounting groove. The first gear 12 is connected to the first driving wheel 1401 through a synchronous belt 13, and the output end of the auxiliary motor 8 is fixedly connected to the first gear 12.

[0045] Preferably, the tooth specifications and spacing of the first gear 12 and the first driving wheel 1401 are equal, and the inner side of the synchronous belt 13 is provided with teeth that mesh with the first gear 12 and the first driving wheel 1401. During specific use, the output end of the auxiliary motor 8 drives the first gear 12 to rotate. Since the first driving wheel 1401 is fixedly connected to the second driving wheel 1402, the first driving wheel 1401 drives the second driving wheel 1402 to rotate synchronously.

[0046] like Figure 8 and Fig. 9 As shown, a third driving wheel 1501 meshing with the planetary gear 1101 is fixedly installed on the top of the disassembly column 15, and a fourth driving wheel 1502 meshing with the second driving wheel 1402 is coaxially arranged on the top of the third driving wheel 1501. With such an arrangement, the fourth driving wheel 1502 can be driven to rotate by the second driving wheel 1402, thereby driving the disassembly column 15 to rotate synchronously with the transmission gear 14, and the third driving wheel 1501 can be driven to rotate by the planetary gear 1101, thereby driving the disassembly column 15 to rotate synchronously with the transmission shaft 11.

[0047] like Figure 8 and Fig. 9 As shown, teeth are arranged on the outside of the positioning cylinder 16, a horizontal bottom cover 25 is arranged on one side of the bottom of the outer cylinder sleeve 10, a top cover 26 is installed on the bottom cover 25, a second gear 17 and a third gear 18 are installed in the bottom cover 25, the third gear 18 meshes with the teeth of the positioning cylinder 16 and the second gear 17 respectively, and the output end of the torque motor 9 is fixedly connected with the second gear 17. When in use, the torque motor 9 is started, the output end of the torque motor 9 drives the second gear 17, and the second gear 17 drives the positioning cylinder 16 to rotate through the third gear 18 and the teeth on the positioning cylinder 16.

[0048] In this embodiment, a slot 1601 is provided at the top center of the positioning cylinder 16, a block 1602 is provided at the inner bottom of the slot 1601, a guide cylinder 2001 is provided at the bottom of the fixing sleeve 20, the bottom of the guide cylinder 2001 extends into the slot 1601, a spring limiting shaft 22 is slidably installed in the guide cylinder 2001, a pressure ring 23 corresponding to the block 1602 is provided at the bottom of the spring limiting shaft 22, and the first spring 21 is located at the top of the spring limiting shaft 22; an annular plate 19 is installed at the bottom of the positioning cylinder 16 by bolts.

[0049] The working principle of the automatic positioning super nut disassembly and assembly device provided in the embodiment of the present application is as follows:

[0050] When in use, the fixing seat 3 is clamped on the arc slide rail 1 from the end of the arc slide rail 1, and the arc slide rail 1 is lifted on the flange of the low-pressure cylinder steam guide pipe 27 of the steam turbine manually or by a crane. The positioning sleeve 5 is fixedly installed on the super nut 28 manually, and the positioning sleeve 5 is limited and fixed by the super nut 28. The connecting plate 4 at the end of the arc slide rail 1 is fixed together by the cooperation of bolts and connecting holes, and then several arc slide rails 1 are assembled into a complete annular disassembly and assembly support frame, and then the disassembly and assembly support frame is installed on the outer side of the low-pressure cylinder steam guide pipe 27 of the steam turbine, and the mounting seat 2 and the fixing seat 3 are combined with each other by bolts, and then the disassembly and assembly assembly is installed on the disassembly and assembly support frame;

[0051] The disassembly assembly is manually slid to align the positioning cylinder 16 with the super nut 28, and the device is positioned by the cooperation of the bolt and the fixing seat 3. At this time, the push bolt 2801 has not yet been aligned with the six holes on the positioning cylinder 16, and the torque motor 9 is started. The output end of the torque motor 9 drives the second gear 17 to rotate, and the second gear 17 drives the positioning cylinder 16 to rotate through the third gear 18 and the teeth on the positioning cylinder 16. When the six push bolts 2801 are aligned with the six holes at the bottom of the positioning cylinder 16, the positioning cylinder 16 is pushed downward by the first spring 21, and the teeth on the surface of the positioning cylinder 16 are separated from the third gear 18, so that the top surface of the push bolt 2801 is inserted into the six holes at the bottom of the positioning cylinder 16 and fits tightly with the disassembly column 15. At this time, the torque motor 9 senses the increased torque and the torque motor 9 stops automatically. At this time, the six push bolts 2801 have been aligned with the six disassembly columns 15, but the hexagonal top of the push bolt 2801 fails to be inserted into the hexagonal bolt groove at the bottom of the disassembly column 15.

[0052] The auxiliary motor 8 is started again, and the output end of the auxiliary motor 8 drives the first gear 12 to rotate. The first gear 12 drives the transmission gear 14 to rotate through the cooperation of the synchronous belt 13 and the first driving wheel 1401. The transmission gear 14 drives the six disassembly and assembly columns 15 to rotate synchronously through the cooperation of the second driving wheel 1402 and the fourth driving wheel 1502. When the hexagonal bolt groove at the bottom of a single disassembly and assembly column 15 is aligned with the hexagon of the push bolt 2801, the second spring 24 on the outside of the disassembly and assembly column 15 presses the disassembly and assembly column 15 downward through the collar, so that the hexagonal bolt groove at the bottom of the disassembly and assembly column 15 is meshed with the hexagon of the push bolt 2801. At this time, the fourth driving wheel 1502 is also completely separated from the second driving wheel 1402, and the third driving wheel 1501 moves downward to align with the planetary gear 1101 of the transmission shaft 11 The other disassembly and assembly columns 15 that are not engaged with the planetary gear 1101 continue to rotate driven by the auxiliary motor 8 until the hexagonal bolt grooves at the bottom of all the disassembly and assembly columns 15 are fully engaged and matched with the hexagonal corners of the push bolts 2801, and the fourth drive wheels 1502 on all the disassembly and assembly columns 15 are completely disengaged from the second drive wheels 1402, and all the third drive wheels 1501 move downward to engage with the planetary gears 1101 of the transmission shaft 11, then the auxiliary motor 8 stops and the servo motor 6 is started. The servo motor 6 increases the torque through the deceleration of the reducer and drives the transmission shaft 11 to rotate after the reversal of the gear box 7. The transmission shaft 11 drives all the disassembly and assembly columns 15 to rotate synchronously through the cooperation of the planetary gear 1101 and the third drive wheel 1501, thereby completing the operation of synchronously disassembling and assembling the push bolts 2801.

[0053] After the super nut 28 is removed, the disassembly assembly is moved to the next super nut 28 again, and the above operation is repeated until all the super nuts 28 are removed.

[0054] Preferably, the computer and the electric control box can be connected together through a network cable, and the electric control box can be connected to the servo motor 6, the auxiliary motor 8 and the torque motor 9 on the disassembly and assembly components. The opening and closing of the servo motor 6, the auxiliary motor 8 and the torque motor 9 can be controlled by the computer to make the operation more convenient and intelligent. The electrical connection relationship and circuit layout are common technologies in the prior art, and the specific structure and working principle will not be elaborated here.

[0055] The above description is only a specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed in the present application should be covered within the protection scope of the present application.

Claims

1. An automatic positioning super nut disassembly and assembly device, characterized in that: The invention comprises a disassembly support frame, wherein a mounting seat (2) is provided on the disassembly support frame, an outer sleeve (10) with a bottom opening is provided at the bottom of the mounting seat (2), and a gear box (7) is provided at the top; the input end of the gear box (7) is connected to a servo motor (6), and the output end is connected to a transmission shaft (11) vertically passing through the mounting seat (2); a fixed sleeve (20) movably connected to the transmission shaft (11) is provided inside the outer sleeve (10), a positioning sleeve (16) is movably installed at the bottom, and a hole is opened in the positioning sleeve (16); the fixed sleeve (20) is movably connected to the transmission shaft (11) and a positioning sleeve (16) is provided with a hole; A disassembly column (15) is installed to mesh with the transmission shaft (11), the bottom end of the disassembly column (15) extends into the positioning cylinder (16), and a second spring (24) is provided on the disassembly column (15) for pressing the bottom of the disassembly column (15) downward; an auxiliary motor (8) is installed on one side of the mounting seat (2), and the auxiliary motor (8) is connected to the transmission shaft (11) in a transmission manner; a torque motor (9) is provided on one side of the bottom of the outer sleeve (10), and the torque motor (9) is connected to the positioning cylinder (16) in a transmission manner; The disassembly and assembly support frame includes a plurality of circular arc slide rails (1) forming a circular ring shape, a connecting plate (4) is provided at the end of the circular arc slide rail (1), adjacent circular arc slide rails (1) are connected via the connecting plate (4), a positioning sleeve (5) corresponding to the super nut (28) is provided on the inner side of the bottom of the circular arc slide rail (1), a fixing seat (3) is slidably installed on the top, and the mounting seat (2) is fixed on the top of the fixing seat (3).

2. The automatic positioning super nut disassembly and assembly device according to claim 1 is characterized in that: The bottom of the disassembly column (15) is provided with a hexagonal bolt groove corresponding to the push bolt (2801), and a sleeve is arranged outside the disassembly column (15). The bottom of the sleeve is provided with a ring fixedly connected to the disassembly column (15), and the second spring (24) is arranged between the sleeve and the ring.

3. The automatic positioning super nut disassembly and assembly device according to claim 1 is characterized in that: The bottom of the transmission shaft (11) is movably connected to the center of the fixed sleeve (20) via a bearing, and the transmission shaft (11) is mounted with a transmission gear (14) via another bearing, so that the transmission gear (14) and the transmission shaft (11) can rotate respectively, and a planetary gear (1101) is arranged on the outside of the transmission shaft (11), and the planetary gear (1101) is arranged between the transmission gear (14) and the fixed sleeve (20).

4. The automatic positioning super nut disassembly and assembly device according to claim 3 is characterized in that: The transmission gear (14) comprises a first driving wheel (1401) and a second driving wheel (1402) which are coaxially arranged, and the first driving wheel (1401) is located on the upper surface of the second driving wheel (1402). A mounting groove is provided on one side of the top of the outer sleeve (10), and a first gear (12) is movably mounted in the mounting groove. The first gear (12) and the first driving wheel (1401) are connected to each other by a synchronous belt (13), and the output end of the auxiliary motor (8) is fixedly connected to the first gear (12).

5. The automatic positioning super nut disassembly and assembly device according to claim 4 is characterized in that: The tooth specifications and spacing of the first gear (12) and the first driving wheel (1401) are equal, and the inner side of the synchronous belt (13) is provided with teeth that mesh with the first gear (12) and the first driving wheel (1401).

6. The automatic positioning super nut disassembly and assembly device according to claim 4, characterized in that: A third driving wheel (1501) meshing with the planetary gear (1101) is installed on the top of the disassembly column (15), and a fourth driving wheel (1502) meshing with the second driving wheel (1402) is coaxially arranged on the top of the third driving wheel (1501).

7. The automatic positioning super nut disassembly and assembly device according to claim 1, characterized in that: The outer side of the positioning cylinder (16) is provided with teeth, a horizontal bottom cover (25) is provided on one side of the bottom of the outer cylinder sleeve (10), a top cover (26) is installed on the bottom cover (25), a second gear (17) and a third gear (18) are installed in the bottom cover (25), the third gear (18) meshes with the teeth of the positioning cylinder (16) and the second gear (17) respectively, and the output end of the torque motor (9) is fixedly connected to the second gear (17).

8. The automatic positioning super nut disassembly and assembly device according to claim 1 or 7, characterized in that: A slot (1601) is provided at the center of the top of the positioning cylinder (16), a block (1602) is provided at the inner bottom of the slot (1601), a guide cylinder (2001) is provided at the bottom of the fixing sleeve (20), the bottom of the guide cylinder (2001) extends into the slot (1601), a spring limiting shaft (22) is slidably installed in the guide cylinder (2001), and a pressure ring (23) corresponding to the block (1602) is provided at the bottom of the spring limiting shaft (22).

9. The automatic positioning super nut disassembly and assembly device according to claim 8, characterized in that: The positioning cylinder (16) and the outer cylinder sleeve (10) are connected in cooperation via a first spring (21), and the first spring (21) is located at the top of the spring limiting shaft (22).

Images