A three-point support double-track transmission electric turning mechanism and working method

Abstract

The present invention provides an electric turning mechanism and working method for special equipment in a storage and transportation environment. The mechanism is inserted into a supporting bracket through a hand-cranked device, a ring device is placed on the upper end surface of the supporting bracket, and a supporting roller assembly is arranged between the ring device and the supporting bracket; the ring device is encircled by the special equipment to be turned over, and the outer gear of the ring device is meshed with the double-track gear assembly. The servo motor is connected to one side of the worm gear assembly through the reversing gear assembly, and the other side of the worm gear assembly is connected to the double-track gear assembly. The present invention adopts a single-chain self-locking transmission + final-stage double-chain parallel transmission scheme. The single-chain self-locking transmission adopts a 1-stage bevel gear + worm gear transmission method, which meets the use requirements of in-situ regular automatic turning in the storage and transportation box. At the same time, it can realize free switching between automatic turning and manual turning in the event of a fault, and is easy to operate.

Description

Technical Field

[0001] The invention belongs to the technical field of storage and transportation of special equipment, and relates to a three-point support double-track transmission electric turning mechanism and a working method. Background Art

[0002] During long-term storage of special equipment, the geometric shape of the solid-fuel motor grain changes under the long-term load of its own weight. This can cause the grain's burning surface to change shape or block the gas passage, thereby changing the motor's internal ballistic performance or causing the engine to explode. Therefore, for long-term storage of special equipment, it is urgent to develop an in-situ flipping mechanism to regularly flip the equipment, effectively eliminating the geometric deformation of the grain and ensuring safe and reliable storage.

[0003] At present, when special equipment needs to be flipped during storage, it is usually lifted from the storage box to a specific flipping device, and then transferred back to the storage box after the flipping action is completed. It is impossible to flip it in situ. Secondly, most flipping devices have complex structures and low reliability. Summary of the Invention

[0004] In response to the problems existing in the prior art, the present invention provides a three-point supported dual-track transmission electric flipping mechanism and working method, which can meet the requirements of regular automatic flipping in situ within the storage and transportation box. At the same time, it can realize free switching between automatic flipping and manual flipping in the event of a fault. It is easy to operate, has a simple structure and high reliability.

[0005] The present invention is achieved through the following technical solutions:

[0006] A three-point support double-track transmission electric turning mechanism, comprising:

[0007] The main support device includes a support bracket, a support roller assembly, a holding ring device, a double-track gear assembly, a worm gear assembly, a reversing gear assembly, a servo motor and a hand-cranking device;

[0008] The hand-crank device is inserted into the support bracket, the holding ring device is placed on the upper end surface of the support bracket, and the supporting roller assembly is arranged between the holding ring device and the support bracket;

[0009] The ring device is encircled on the special equipment to be flipped, and the outer gear of the ring device is meshed with the double-track gear assembly.

[0010] The servo motor is connected to one side of the worm gear assembly through a reversing gear assembly, and the other side of the worm gear assembly is connected to the dual-track gear assembly; the hand-cranking device is connected to one side of the reversing gear assembly, and the other side of the reversing gear assembly is connected to the servo motor.

[0011] Preferably, the dual-track gear assembly includes an output pinion 1, an input pinion 1, an output pinion 2, an input pinion 2, a dual-track gear and a dual-track transition gear;

[0012] The output pinion 1 and the output pinion 2 are respectively sleeved on the stepped shafts on both sides of the double-track large gear through a key connection, and the output pinion 1 and the output pinion 2 are meshed with the external gear of the ring device; the double-track transition gear is installed between the output pinion 1, the input pinion 1, the output pinion 2 and the input pinion 2, one side is meshed with the double-track large gear, and the other side is meshed with the input pinion 1 and the input pinion 2; the input pinion 1 and the input pinion 2 are sleeved on the shaft of the worm gear assembly; the outer side of the stepped shafts on both sides of the double-track large gear is sleeved with bearing 2; the outer side of the stepped shafts on both sides of the double-track transition gear is sleeved with bearing 3.

[0013] Preferably, the worm gear assembly includes a worm shaft and a worm shaft, the input pinion one and the input pinion two are respectively sleeved on the stepped shafts on both sides of the worm gear shaft through a key connection, one side of the worm shaft is sleeved with bearing four, and the other side of the worm shaft is inserted into the large bevel gear through a key connection, and the outermost side is sleeved with bearing four; the outer sides of the stepped shafts on both sides of the worm gear shaft are sleeved with bearing three.

[0014] Preferably, the reversing gear assembly comprises a small bevel gear 1, a small bevel gear 2 and a large bevel gear, and the small bevel gear 1, the small bevel gear 2 and the large bevel gear are meshed vertically with each other in pairs;

[0015] The servo motor is connected to the small bevel gear 1 through a motor sleeve; the large bevel gear is connected to the worm shaft through a key; and the small bevel gear 2 is connected to the hand-cranking device.

[0016] Preferably, the hand-cranked device consists of a crank wheel and an extension shaft; one end of the extension shaft is inserted into the second small bevel gear, and the other end is inserted into the crank wheel, and an axial screw is used to fix the crank wheel and the extension shaft.

[0017] Preferably, the holding ring device includes an upper holding ring, a lower holding ring, a connecting pressure plate, a locking block and a rubber clamp;

[0018] The lower holding ring is placed on the upper end surface of the supporting bracket, and the outer gear of the lower holding ring is respectively engaged with the output pinion 1 and the output pinion 2; the rubber splint is arranged between the contact surface of the upper holding ring and the lower holding ring and the special equipment to be flipped; the upper holding ring and the lower holding ring are fastened together by a locking block and a positioning pin shaft to hold and fix the special equipment to be flipped, and the fixation is strengthened by a connecting pressure plate.

[0019] Preferably, the support roller assembly includes a roller, a central shaft, a support sleeve and a bearing; the central shaft is inserted into the center hole of the roller; the bearing is respectively sleeved in the central shaft through both ends of the roller and then sleeved into the support sleeve.

[0020] Preferably, a rib plate is provided at the bottom of the support bracket, and a U-shaped hole is provided at the upper part of the support bracket for supporting the installation of the roller assembly; a through hole is provided at the front end of the support bracket for the cooperation and installation of the servo motor, and a through hole is provided for the installation of the dual-track gear assembly; and a stepped hole is provided at the lower part of the support bracket for the installation of the hand-cranked device.

[0021] Preferably, it further comprises a front auxiliary supporting device and a rear auxiliary supporting device, wherein the front auxiliary supporting device, the rear auxiliary supporting device and the main supporting device are respectively installed at both ends and the middle part of the special equipment to be flipped;

[0022] The front auxiliary support device and the rear auxiliary support device have the same structure and component composition, both of which include a support bracket, a support roller assembly and a ring device, wherein the support roller assembly is placed on the upper end surface of the support bracket, the ring device is placed on the upper end surface of the support bracket, and the support roller assembly is arranged between the contact surface of the ring device and the support bracket; the ring device is encircled on the special equipment to be flipped.

[0023] A working method of a three-point supported dual-track transmission electric turning mechanism, comprising:

[0024] In the electric flipping mode, the servo motor drives the reversing gear assembly, which transmits torque to the worm gear assembly, which then transmits power to the double-track gear assembly through the worm gear rotating shaft. The double-track gear assembly drives the ring device to rotate, thereby realizing the flipping of special equipment.

[0025] In manual flipping mode, the reversing gear assembly is driven by a hand crank device, which transmits torque to the worm gear assembly, and then transmits power to the double-track gear assembly through the worm gear rotating shaft. The double-track gear assembly drives the ring device to rotate, thereby realizing the flipping of the special equipment.

[0026] Compared with the prior art, the present invention has the following beneficial technical effects:

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] The present invention designs an electric turning mechanism and working method for special equipment in a storage and transportation environment, comprising a main support device including a supporting bracket, a supporting roller assembly, a holding ring device, a double-track gear assembly, a worm gear assembly, a reversing gear assembly, a servo motor and a hand-cranking device; the present invention creatively uses a single support at the center of gravity position as the only main support for special equipment, supplemented by auxiliary support on both sides. Compared with the traditional support method of main support on both sides + auxiliary support in the middle position, the advantage is that it can effectively avoid the dislocation damage caused by the asynchronous flipping torque on both sides; wherein, the hand-cranked device is inserted into the support bracket, the holding ring device is placed on the upper end face of the support bracket, and the supporting roller assembly is arranged between the holding ring device and the support bracket; the holding ring device is wrapped around the special equipment to be flipped, and the outer gear of the holding ring device is engaged with the double-track gear assembly. The flipping mechanism designed by the present invention can freely switch between automatic flipping and manual flipping, which is beneficial for emergency handling when a fault occurs; the servo motor is connected to one side of the worm gear assembly through the reversing gear assembly, and the other side of the worm gear assembly is connected to the double-track gear assembly; the hand-cranked device is connected to one side of the reversing gear assembly, and the other side of the reversing gear assembly is connected to the servo motor. The present invention adopts a single-chain self-locking transmission + final-stage double-chain parallel transmission scheme. The single-chain self-locking transmission adopts a 1-stage bevel gear + worm gear transmission mode; the present invention can meet the use requirements of regular automatic flipping in situ in the storage and transportation box, and can realize free switching between automatic flipping and manual flipping in the event of a fault, and is easy to operate.

[0029] The present invention's tilting mechanism operates in two modes: an electric tilting mode and a manual tilting mode. The present invention incorporates a final-stage dual-track parallel gear transmission mechanism, which effectively increases the design safety margin and enhances the rigidity of the tilting mechanism, making the tilting process safer and more stable. In single-track transmission, due to the heavy weight of special equipment, the final-stage gear in the reduction gear must be designed with an increased module and tooth thickness to improve design reliability. This not only takes up space and increases installation difficulty, but also unevenly applies force to the tooth profile during movement. The final-stage dual-track parallel transmission utilizes two parallel transmission links, each consisting of two spur gear stages. Because the radial dimensions of the reduction gear are limited, while axial space is relatively ample, a parallel gear reduction mechanism layout is employed. Torque is transmitted from the motor output shaft through a first bevel gear and worm gear, and then simultaneously transmitted to the output shaft through two transmission links. This effectively utilizes axial space and improves the gear reduction mechanism's load-bearing torque and overall torsional stiffness. The dual-sprocket design of the present invention is reliably supported at two points, ensuring centering during installation and smooth operation during the tilting process.

[0030] Furthermore, the present invention has the advantages of high integration, strong versatility and simple structure, and can be extended to a full range of special equipment. It has broad development prospects, and its application areas are not limited to the field of intelligent storage and transportation boxes for special equipment. It can also play a huge role in engineering machinery, stage flipping, and missile launchers.

[0031] Furthermore, the dual-track gear assembly 14 designed in the present invention is reliably supported and meshed at two points, thereby ensuring centering during installation and smooth operation during the flipping process; BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a front view of the turning mechanism of the present invention;

[0033] Figure 2 This is a front view of the main support device 3 of the turnover mechanism of the present invention;

[0034] Figure 3 It is a left view of the main support device 3 of the turnover mechanism of the present invention;

[0035] Figure 4 This is a partial front view of the main support device 3 of the turnover mechanism of the present invention (excluding the parts support bracket);

[0036] Figure 5 This is a bottom view of the main support device 3 of the turning mechanism of the present invention (excluding the parts support bracket);

[0037] Figure: 1. Special equipment to be flipped; 2. Front auxiliary support device; 3. Main support device; 4. Hand crank device; 5. Rear auxiliary support device; 6. Holding ring device; 7. Lower holding ring; 8. Upper holding ring; 9. Rubber splint; 10. Support roller assembly; 11. Crank wheel; 12. Extension shaft; 13. Servo motor; 14. Dual-track gear assembly; 15. Support bracket; 16. Positioning pin shaft; 17. Locking block; 18. Connecting pressure plate; 19. Worm gear assembly ; 20. Bearing 1; 21. Spindle; 22. Support sleeve; 23. Output pinion 1; 24. Bearing 2; 25. Bearing 3; 26. Worm gear shaft; 27. Input pinion 1; 28. Small bevel gear 1; 29. ​​Small bevel gear 2; 30. Bearing 4; 31. Large bevel gear; 32. Input pinion 2; 33. Double-track transition gear; 34. Double-track large gear; 35. Output pinion 2; 36. Roller; 37. Motor sleeve; 38. Worm shaft. DETAILED DESCRIPTION

[0038] The present invention will be further described in detail below with reference to specific embodiments, which are intended to explain the present invention rather than to limit it.

[0039] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0040] The technical problem solved by the present invention is the problem of automatic in-situ flipping of special equipment in a storage and transportation environment. The present invention designs an electric flipping mechanism for special equipment in a storage and transportation environment, which can meet the use requirements of regular automatic flipping in situ in the storage and transportation box. At the same time, it can realize free switching between automatic flipping and manual flipping in the event of a fault, and is easy to operate. The present invention has the advantages of high integration, strong versatility and simple structure. It can be extended to a full range of special equipment and has broad development prospects. The application field is not limited to the field of intelligent storage and transportation boxes for special equipment. It can also play a huge role in the fields of engineering machinery, stage flipping and missile launchers.

[0041] like Figure 1 As shown, this solution designs a three-point support automatic flipping mechanism composed of a front auxiliary support device 2, a rear auxiliary support device 5, and a main support device 3. The main support device 3 is installed in the middle part of the special equipment 1 to be flipped, and the front auxiliary support device 2 and the rear auxiliary support device 5 are respectively installed at both ends of the special equipment 1 to be flipped;

[0042] The main support device 3 includes a support bracket 15, a support roller assembly 10, a ring device 6, a dual-track gear assembly 14, a worm gear assembly 19, a reversing gear assembly, a servo motor 13, and a hand crank 4, enabling the automatic in-situ flipping of special equipment. By optimizing the spatial layout, the flipping mechanism is easy to install and disassemble, operates smoothly, and self-locks throughout the flipping process, ensuring safe and reliable operation of the special equipment within the storage and transportation box.

[0043] The front auxiliary support device 2 and the rear auxiliary support device 5 have the same structure, both consisting of a support bracket 15, a support roller assembly 10, and a ring device 6; the component structures are the same as the support bracket 15, support roller assembly 10, and ring device 6 in the main support device 3, and the installation position and connection relationship are also the same; the support roller assembly 10 is placed on the upper end surface of the support bracket 15, the ring device 6 is placed on the upper end surface of the support bracket 15, and the support roller assembly 10 is arranged between the contact surface of the ring device 6 and the support bracket 15; the ring device 6 is encircled by the special equipment 1 to be flipped. The present invention creatively designs a final-stage double-chain parallel transmission mechanism, which can effectively increase the design safety margin, improve the rigidity of the flipping mechanism, and make the flipping process safer and more stable. In the case of single-chain transmission, due to the excessive weight of the special equipment, the design of the reduction gear needs to increase the module and tooth thickness to improve the design reliability, which not only takes up space and increases the difficulty of installation, but also causes uneven force on the tooth profile during movement. The double-sprocket designed in this work is reliably supported at two points, ensuring centering during installation and smooth operation during the flipping process.

[0044] The front auxiliary support device 2 and the rear auxiliary support device 5 only provide support.

[0045] The flip mechanism of the present invention has two working modes. The first is the electric flip mode. In this case, the servo motor 13 drives the reversing gear assembly, which transmits torque to the worm gear assembly 19, which is then connected to the dual-track gear assembly 14 through the worm gear rotating shaft.

[0046] Specifically, the servo motor 13 rotates to drive the small bevel gear 1 28 to rotate, and then drives the large bevel gear 31 and the worm shaft 38 to rotate, and then drives the worm shaft 26 to rotate through the worm shaft 38, and then drives the input small gear 1 27 and the input small gear 2 32 to be transmitted to the double-track transition gear 33, and then transmitted to the double-track large gear 34, and the double-track large gear 34 drives the output small gear 1 23 and the output small gear 2 35 to drive the ring device 6 to rotate, and the special equipment 1 is flipped through the ring device 6.

[0047] The present invention designs a final-stage double-track parallel gear transmission mechanism, which can effectively increase the design safety margin, improve the rigidity of the flipping mechanism, and make the flipping process safer and more stable. In the case of single-track transmission, due to the excessive weight of the special equipment, the design of the final-stage gear in the reduction device needs to improve the design reliability by increasing the module and tooth thickness, which not only takes up space and increases the difficulty of installation, but also causes uneven force on the tooth profile during movement. The final-stage double-track parallel transmission adopts two parallel transmission links, and each transmission link is composed of two-stage spur gear transmission. Since the radial dimension of the reduction device is limited and the axial space is relatively abundant, the structural layout of the parallel gear reduction device is selected, that is, starting from the motor output shaft, after the first-stage bevel gear and worm gear deceleration, the torque is simultaneously transmitted to the output shaft through two transmission links, which can effectively utilize the axial space and improve the bearing torque and overall torsional stiffness of the gear reduction device. The dual-track gear assembly 14 designed in this achievement is reliably supported and engaged through two points, ensuring the centering during installation and the smooth operation of the flipping process;

[0048] The second mode is manual reversing. The hand crank 4 is a circular rotating wheel with an elongated drive shaft. The drive shaft of the hand crank 4 is inserted into the flat slot of the small bevel gear 1 (28) in the reversing gear assembly. The reversing gear assembly includes three bevel gears, each perpendicular to the other. The large bevel gear 31 is keyed to the worm shaft 38. The small bevel gear 1 (28) is connected to the hand crank 4. At the other end, the shaft of the servo motor 13 is inserted into the slot of the small bevel gear 2 (29) and is bolted to the support bracket via a flange. The manual flipping process is specifically as follows: power is transmitted to the small bevel gear 29 through the hand crank device 4, and the small bevel gear 29 drives the large bevel gear 31 and the worm shaft 38 to rotate, and the worm shaft 38 drives the worm gear shaft 26 to rotate, thereby driving the input small gear 1 27 and the input small gear 2 32 to be transmitted to the double-track transition gear 33, and then the power is transmitted to the double-track large gear 34, and the double-track large gear 34 drives the output small gear 1 23 and the output small gear 2 35 to rotate, thereby driving the ring device 6 to rotate, and the special equipment 1 is flipped by the ring device 6;

[0049] The support roller assembly 10 consists of a bracket and four roller assemblies. The roller assemblies are driven follower rollers, providing effective support for the special equipment and reducing friction during flipping. They do not provide rolling force. The specific function of the support roller assembly 10 is to bear the weight of the special equipment. Four sets of support roller assemblies 10 are installed in the flip mechanism. Each support roller assembly 10 can carry a weight of approximately 10 tons. After all parts are assembled, the ends of the support roller assembly 10 are placed flat in the U-shaped holes of the support bracket 15 to ensure flexible rotation.

[0050] like Figure 2 and Figure 3As shown, the output pinion 1 23 and the output pinion 2 35 are inserted into the stepped shafts at both ends of the double-track large gear 34 through a key connection, and then the shaft sleeves and bearing 2 24 are inserted in sequence. Bearing 3 25 is also inserted into the stepped shafts on both sides of the double-track transition gear 33. The input pinion 1 27 and the input pinion 2 32 are inserted into the stepped shafts on both sides of the worm shaft 26 through a key connection, and then the bearing 3 25 is inserted. Then, the bearing 4 30 is inserted into the side of the shorter stepped shaft of the worm shaft 38, and the large bevel gear 31 is inserted into the side of the longer stepped shaft through a key connection. The large bevel gear 31 and the worm shaft 38 are connected and tightened by screws on the circumference, and finally the bearing 4 30 is inserted. The motor sleeve 37 is connected by a key, and one end of the rectangular flange is connected to the servo motor 13, and the other end is connected to the pinion 1 28. One end of the extension shaft 12 with a keyway is inserted into the small bevel gear 29, and the other end is inserted into the rocker 11. The rocker 11 and the extension shaft 12 are connected and fastened with axial screws. The spindle 21 is inserted into the center hole of the roller 36. Then, the bearing 20 is inserted into the spindle 21 from both ends of the roller 36, and finally, the support sleeve 22 is inserted. First, the three parallel shafts of the dual-track gear assembly 14 are sequentially installed into the three through holes set on the right side of the front end of the support bracket 15. Next, the worm shaft 38 is installed from the bottom of the support bracket 15 and then pressed and connected with the bearing end cover. Then, the servo motor assembly 13 is inserted from the rightmost hole of the front end of the support bracket and fastened to the support bracket 15 with the four mounting screws on the servo motor 13 flange. The hand crank device 4 is inserted from the stepped hole on the lower right side of the support bracket 15 and fastened with flange screws. Finally, the four groups of supporting roller assemblies 10 are placed into the four “U”-shaped holes on the arc surface at the upper end of the supporting bracket 15 .

[0051] First, place the lower holding ring 7 on the main support assembly 3, ensuring that the cylindrical external gear on the holding ring assembly 6 meshes properly with the output pinion 1 23 and output pinion 2 35. Next, place the special equipment 1 to be flipped steadily on the three-point support assembly, which is composed of the front auxiliary support assembly 22, the rear auxiliary support assembly 5, and the main support assembly 3. Then, place the rubber clamp 9 and upper holding ring 8 on the special equipment 1 in sequence, with the trapezoidal groove of the rubber clamp 9 facing the special equipment 1. First, screw the four sets of locking blocks 17 to the connection between the upper holding ring 8 and the lower holding ring 7. Then, tighten the locking screws continuously until the locating pin 16 smoothly penetrates the pin hole at the connection between the upper holding ring 8 and the lower holding ring 7. Finally, place the two connecting pressure plates 18 in the rectangular grooves on the circumference of the holding rings to secure the upper holding ring 8 and the lower holding ring 7. At this point, installation is complete, thus completing the assembly of the flipping mechanism.

[0052] like Figure 4As shown, the flipping mechanism of the present invention mainly includes a supporting bracket 15, a supporting roller assembly 10, a ring device 6, a dual-track gear assembly 14, a worm gear assembly 19, a reversing gear assembly, a servo motor 13 and a hand-cranking device 4.

[0053] The support bracket 15 is a box with a bilaterally symmetrical "concave" shape. Ribs are set near the bottom at the front and back, and "U"-shaped holes are set at equal intervals on the upper arc surface to facilitate the installation of 4 groups of support roller assemblies 10. Four through holes are set on the right side of the front end surface to cooperate with the reduction device and servo motor 13 for installation. A stepped hole is set on the lower part of the right side to facilitate the later installation of the hand-cranked device 4.

[0054] The support roller assembly 10 consists of a roller 36, a spindle 21, a support sleeve 22, and a bearing. The roller 36 is a centrally symmetrical circular long shaft with a large center and small ends. The center of the long shaft is a stepped circular through hole with a small center and large ends. The spindle 21 is a solid circular long shaft with a slightly larger center and small ends. The support sleeve 22 is a short annular shaft with a through hole in the center. The roller 36 contacts the ring device 6, and the spindle 21 is clamped in the U-shaped hole of the support bracket 15.

[0055] The ring assembly 6 comprises an upper ring 8, a lower ring 7, a connecting plate 18, a locking block 17, and a rubber clamp 9. Both the upper and lower rings 8 and 7 are semi-annular, sheet-like components with complementary shapes. A circular through-hole serves as a locating pin. Regular rectangular grooves are arranged axially on the inner side of the rings, while two rows of gear rings are arranged circumferentially on the outer side. When connected, the upper and lower rings 8 and 7 form two complete rows of cylindrical external gears, which are machined and formed simultaneously. Near the edges of the semi-annular components, a convex through-groove is provided at the outer circumferential center. A 15mm-deep rectangular groove, slightly larger than the convex groove, is also provided at the same location. A threaded mounting hole is located at the upper end of each convex groove. At the same height, trapezoidal "ears" protrude from each end of the semi-annular component, each with two threaded mounting holes. The connecting plate 18 is a thin, rectangular ring-shaped sheet with a stepped through-hole in the center and three countersunk holes for mounting screws on each side. The locking block 17 consists of two symmetrical, separated L-shaped metal blocks, each with two countersunk screw holes on its front. One L-shaped block has a circular through-hole perpendicular to the short side of the L-shape, while the other L-shaped block has a threaded through-hole in the same position. The rubber splint 9 is a rectangular rubber sheet with a regular trapezoidal groove on one side. Due to its soft material, it can be easily folded into an arc, ensuring a better fit for the product.

[0056] like Figure 5As shown, the dual-track gear assembly 14 consists of two groups of 8 gears, namely output pinion 1 23, output pinion 2 35, dual-track large gear 34, dual-track transition gear 33, and input pinion 1 27, input pinion 2 32. Output pinion 1 23 and output pinion 2 35 are identical, both are lamellar spur gears, and a circular through-hole with a keyway is set at the center. The dual-track large gear 34 is an integrated centrally symmetrical dual-gear stepped shaft, and the dual gears have the same design parameters and need to be processed and formed in one step. The dual-track transition gear 33 is also an integrated centrally symmetrical dual-gear stepped shaft, and the dual gears have the same design parameters and need to be processed and formed in one step. Input pinion 1 27 and input pinion 2 32 are identical, both are lamellar spur gears, and a circular through-hole with a keyway is set at the center.

[0057] The worm gear assembly 19 is a pair of worm gear parts, with the worm gear located at the center of the worm shaft 26. The two ends of the worm shaft 26 are symmetrical stepped shafts. The two ends of the worm shaft 38 are stepped shafts of different lengths, with a keyway set near the tail of the longer end.

[0058] The reversing gear assembly includes three bevel gears, which are perpendicular to each other. A circular hole with a keyway is set in the center of the large bevel gear 31, and countersunk holes are evenly distributed around the circular hole. Small bevel gear 1 28 is a gear with a stepped shaft at one end, and a keyway is set on the outer surface of the stepped shaft. Small bevel gear 2 29 is also a gear with a stepped shaft at one end, and a stepped circular hole with a keyway is set in the center. The servo motor 13 is a mature product that has been selected. Its appearance is a rectangular parallelepiped with a stepped shaft at the center of one end. The motor sleeve 37 is an annular stepped sleeve, and a through rectangular keyway is set in the center of the sleeve. A rectangular flange is set at one end of the sleeve, and 4 mounting holes are evenly distributed around the circumference of the flange.

[0059] The hand-crank mechanism 4 consists of a crank wheel 11 and an extension shaft 12. The crank wheel 11 is a circular disc with spokes at its center, and a raised cylindrical crank handle is located at the distal end of the disc. The extension shaft 12 is a long, stepped circular shaft with a keyway on one end and a threaded hole at the center of the end face. The center of the other end is a circular blind hole with a keyway.

[0060] The special equipment to be flipped is placed steadily on a three-point support assembly consisting of a front auxiliary support assembly 2, a rear auxiliary support assembly 5, and a main support assembly 3. The rubber plywood 9 and upper ring 8 are then placed sequentially over the special equipment, with the trapezoidal groove of the rubber plywood 9 facing the equipment. First, four sets of locking blocks 17 are screwed into the joints between the upper and lower rings 8 and 7. The locking screws are then tightened continuously until the locating pins 16 pass smoothly through the pin holes at the joints between the upper and lower rings 8 and 7. Finally, two connecting pressure plates 18 are placed into the rectangular grooves on the circumference of the rings to secure the upper and lower rings 8 and 7. In the main support assembly 3, the output pinion 1 23 and input pinion 2 32 are keyed onto the stepped shafts on either side of the dual-track gear 34. Then, the bushings and bearings are inserted in sequence. Similarly, bearings are inserted into the stepped shafts on either side of the dual-track transition gear 33. Input pinion 1 27 and input pinion 2 32 are keyed onto the stepped shafts on both sides of the worm shaft 26, followed by bearings. Next, a bearing is inserted into the shorter stepped shaft side of the worm shaft 38. On the longer stepped shaft side, a large bevel gear 31 is keyed in. The large bevel gear 31 is connected and secured to the worm shaft 38 using screws on the circumference, and finally, the bearings are inserted. The motor sleeve 37 is keyed, with one end of the rectangular flange connected to the servo motor 13 and the other end to pinion 1 28. The extension shaft 12 has one keyed end inserted into pinion 2 29, and the other end inserted into the rocker 11. The rocker 11 is then secured to the extension shaft 12 using axial screws. Insert the spindle 21 into the center hole of the roller 36, then insert the bearings into the spindle 21 from both ends of the roller 36, and finally, insert the support sleeve 22.

[0061] After the installation of the components of the flipping mechanism is completed, first install the three parallel shafts of the dual-track gear assembly 14 into the three through holes set on the right side of the front end face of the support bracket 15 in sequence, then install the worm shaft 38 from the bottom of the support bracket 15, and then press it together through the bearing end cover. Then insert the servo motor 13 assembly from the rightmost hole of the front end face of the support bracket 15, and fasten it to the support bracket 15 through the four mounting screws on the servo motor 13 flange. Insert the hand-cranked device 4 from the lower stepped hole on the right side of the support bracket 15 and fasten it with the flange screws. Finally, place the four sets of support roller assemblies 10 into the four "U"-shaped holes on the arc surface at the upper end of the support bracket 15, and the installation is now complete.

[0062] Currently, there are no mature products for in-situ automatic turning mechanisms that achieve periodic turning in special equipment storage and transportation boxes. Manual turning mechanisms independently developed by some manufacturers are complex and lack reliability. This invention, through promotion and application, can quickly fill this market gap. This invention can also be widely applied in fields beyond storage and transportation boxes, such as large-scale construction machinery, large-scale stage turning, and large-scale erection equipment such as missile launchers. Therefore, there is an urgent and broad market demand for this invention.

[0063] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or are inherent to these processes, methods, products or apparatuses.

[0064] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may be a central component. When a component is referred to as being "connected to" another component, it may be directly connected to the other component or there may be a central component. When a component is referred to as being "disposed on" another component, it may be directly disposed on the other component or there may be a central component.

[0065] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0066] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any ordinary technician in this industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with this profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A three-point support double-track transmission electric turning mechanism, characterized in that: include: A main support device (3), the main support device (3) comprising a support bracket (15), a support roller assembly (10), a ring device (6), a double-track gear assembly (14), a worm gear assembly (19), a reversing gear assembly, a servo motor (13) and a hand crank device (4); The hand-cranking device (4) is inserted into the support bracket (15), the holding ring device (6) is placed on the upper end surface of the support bracket (15), and the supporting roller assembly (10) is arranged between the holding ring device (6) and the support bracket (15); The holding ring device (6) is held around the special equipment (1) to be flipped, and the outer gear of the holding ring device (6) is meshed with the double-track gear assembly (14); The servo motor (13) is in transmission connection with one side of the worm gear assembly (19) via a reversing gear assembly, and the other side of the worm gear assembly (19) is in transmission connection with the dual-track gear assembly (14); the hand crank device (4) is in transmission connection with one side of the reversing gear assembly, and the other side of the reversing gear assembly is connected to the servo motor (13); The dual-track gear assembly (14) includes an output pinion 1 (23), an input pinion 1 (27), an output pinion 2 (35), an input pinion 2 (32), a dual-track large gear (34) and a dual-track transition gear (33); The output pinion 1 (23) and the output pinion 2 (35) are respectively sleeved on the stepped shafts on both sides of the double-track large gear (34) through a key connection, and the output pinion 1 (23) and the output pinion 2 (35) are meshed with the outer gear of the ring device (6); the double-track transition gear (33) is installed between the output pinion 1 (23), the input pinion 1 (27), the output pinion 2 (35) and the input pinion 2 (32), one side of which is meshed with the double-track large gear (34) and the other side of which is meshed with the input pinion 1 (27) and the input pinion 2 (32); the input pinion 1 (27) and the input pinion 2 (32) are sleeved on the shaft of the worm gear assembly (19); the outer sides of the stepped shafts on both sides of the double-track large gear (34) are sleeved with bearings 2 (24); the outer sides of the stepped shafts on both sides of the double-track transition gear (33) are sleeved with bearings 3 (25); The worm gear assembly (19) includes a worm shaft (26) and a worm shaft (38), the input pinion 1 (27) and the input pinion 2 (32) are respectively sleeved on the stepped shafts on both sides of the worm shaft (26) through a key connection, one side of the worm shaft (38) is sleeved with a bearing 4 (30), and the other side of the worm shaft (38) is inserted into the large bevel gear (31) through a key connection; the outer sides of the stepped shafts on both sides of the worm shaft (26) are sleeved with bearing 3 (25); The reversing gear assembly includes a small bevel gear 1 (28), a small bevel gear 2 (29) and a large bevel gear (31), wherein the small bevel gear 1 (28), the small bevel gear 2 (29) and the large bevel gear (31) are vertically meshed with each other. The servo motor (13) is connected to the small bevel gear (28) through the motor sleeve (37); the large bevel gear (31) is connected to the worm shaft (38) through a key; the small bevel gear (29) is connected to the hand crank device (4); The holding ring device (6) comprises an upper holding ring (8), a lower holding ring (7), a connecting pressure plate (18), a locking block (17) and a rubber clamp (9); The lower holding ring (7) is placed on the upper end surface of the support bracket (15), and the outer gear of the lower holding ring (7) is meshed with the output pinion 1 (23) and the output pinion 2 (35) respectively; the rubber clamping plate (9) is arranged between the upper holding ring (8) and the lower holding ring (7) and the contact surface of the special equipment (1) to be flipped; the upper holding ring (8) and the lower holding ring (7) are fastened together by a locking block (17) and a positioning pin shaft (16), so as to hold and fix the special equipment (1) to be flipped, and the connection pressure plate (18) is used to strengthen the fixation; It also includes a front auxiliary support device (2) and a rear auxiliary support device (5), wherein the front auxiliary support device (2), the rear auxiliary support device (5) and the main support device (3) are respectively installed at both ends and the middle part of the special equipment (1) to be flipped; The front auxiliary support device (2) and the rear auxiliary support device (5) have the same structure and component composition, and both include a support bracket (15), a support roller assembly (10) and a ring device (6), wherein the support roller assembly (10) is placed on the upper end surface of the support bracket (15), the ring device (6) is placed on the upper end surface of the support bracket (15), and the support roller assembly (10) is arranged between the contact surface of the ring device (6) and the support bracket (15); the ring device (6) is encircled on the special equipment (1) to be flipped.

2. The three-point support double-track transmission electric turning mechanism according to claim 1, characterized in that: The hand crank device (4) is composed of a rocking wheel (11) and an extension shaft (12); one end of the extension shaft (12) is inserted into the second small bevel gear (29), and the other end is inserted into the rocking wheel (11), and the rocking wheel (11) and the extension shaft (12) are fixedly connected by an axial screw.

3. The three-point support double-track transmission electric turning mechanism according to claim 1, characterized in that: The supporting roller assembly (10) comprises a roller (36) and a spindle (21); the spindle (21) is inserted into a central hole of the roller (36).

4. The three-point support double-track transmission electric turning mechanism according to claim 1, characterized in that: The bottom of the support bracket (15) is provided with a rib plate, and the upper portion of the support bracket (15) is provided with a U-shaped hole for mounting the supporting roller assembly (10); the front end of the support bracket (15) is provided with a through hole for cooperating with the servo motor (13) and a through hole for mounting the dual-track gear assembly (14); and the lower portion of the support bracket (15) is provided with a stepped hole for mounting the hand crank device (4).

5. A working method of a three-point support double-track transmission electric turning mechanism, based on the three-point support double-track transmission electric turning mechanism according to any one of claims 1 to 4, characterized in that: include: In the electric flipping mode, the servo motor (13) drives the reversing gear assembly, which transmits torque to the worm gear assembly (19), which then transmits power to the double-track gear assembly (14) through the worm gear shaft (26) and the worm shaft (38), and the double-track gear assembly (14) drives the ring device (6) to rotate, thereby realizing the flipping of the special equipment (1); In the manual flipping mode, the reversing gear assembly is driven by the hand crank device (4), and the reversing gear assembly transmits torque to the worm gear assembly (19), which then transmits power to the double-track gear assembly (14) through the worm gear shaft (26) and the worm shaft (38), and the double-track gear assembly (14) drives the ring device (6) to rotate, thereby realizing the flipping of the special equipment (1).

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