Intelligent bolt tightening equipment for yaw speed reducer

Abstract

The invention belongs to the field of yaw speed reducer bolt tightening, and particularly relates to yaw speed reducer bolt intelligent tightening equipment which comprises a base, a supporting frame is fixedly arranged on the right side of the upper portion of the base, a connecting frame is arranged on the inner side of the supporting frame and composed of a transverse plate and a circular ring, and a circular plate is rotationally arranged on the inner side of the circular ring of the connecting frame. Three U-shaped rods distributed in a circumferential array mode are fixedly arranged on the outer side of the circular plate, a first disc is fixedly arranged at the ends, close to one another, of the three U-shaped rods jointly, six grooves distributed in a circumferential array mode are formed in the first disc, and moving plates are arranged in the grooves in a sliding mode. When the two adjacent shells are connected through bolts, bolt holes in the two shells can be completely aligned to ensure that the bolts are not prone to shifting in the screwing process, meanwhile, the two shells can be extruded and supported in the bolt screwing process to ensure that the two shells are not prone to shifting, and therefore the two shells are not prone to shifting. And the screwing effect of the bolt is ensured.

Description

Technical Field

[0001] The invention belongs to the field of yaw reducer bolt tightening, and in particular relates to an intelligent yaw reducer bolt tightening device. Background Art

[0002] In large-scale mechanical equipment, especially wind power generation equipment, ship propulsion systems and heavy industrial machinery, the yaw reducer is a key transmission component, and its stability and reliability are crucial. The yaw reducer ensures the close fit and efficient operation between the components through precise bolt connections, so in the current manufacturing and maintenance process, the tightening of the yaw reducer bolts is often very important.

[0003] At present, the yaw reducer is usually assembled by splicing three shells, upper, middle and lower, in sequence, and the joints between the upper and lower adjacent shells are tightened by bolts. In the process of tightening the bolts, due to the limited positioning accuracy between the upper and lower adjacent shells, it is often difficult to ensure that the two shells are completely aligned (i.e., self-centering), which may cause the bolts to be subjected to uneven force during the tightening process, resulting in deflection; secondly, the bolts are generally tightened individually, and the two shells are prone to warping or misalignment during the tightening process, resulting in uneven force on the bolts and unsatisfactory tightening effect, which in turn affects the overall stability of the yaw reducer. Summary of the invention

[0004] In view of the above problems, an intelligent tightening device for yaw reducer bolts provided in an embodiment of the present application can completely align the bolt holes on the two shells during the process of tightening the bolts, while preventing the shells from shifting, thereby enhancing the stability during the bolt tightening process and ensuring the effect after the bolts are tightened.

[0005] In order to achieve the above-mentioned purpose, the embodiment of the present application provides the following technical solutions: the present invention provides an intelligent tightening device for yaw reducer bolts, including a base, a support frame is fixedly arranged on the upper right side of the base, a connecting frame is arranged on the inner side of the support frame, the connecting frame is composed of a horizontal plate and a circular ring, a circular plate is rotatably arranged on the inner side of the circular ring of the connecting frame, three U-shaped rods distributed in a circular array are fixedly arranged on the outer side of the circular plate, a first disc is fixedly arranged at one end of the three U-shaped rods close to each other, six grooves distributed in a circular array are opened inside the first disc, a movable plate is slidably arranged in the groove, an electric wrench is fixedly arranged on the upper part of the three movable plates, and a first support rod is slidably arranged on the upper part of the other three movable plates, and the electric wrench and the first support rod are staggered, and a centering mechanism is arranged at the bottom end of the first support rod;

[0006] The centering mechanism includes a vertical rod fixedly arranged at the bottom end of the first support rod, a truncated cone block is fixedly arranged at the bottom end of the vertical rod, a connecting sleeve is sleeved on the outer side of the vertical rod, and the truncated cone block is located inside the connecting sleeve, three arc grooves distributed in a circular array are opened on the outer side of the connecting sleeve, an arc block is arranged in the arc groove, two first connecting rods symmetrically distributed up and down are fixedly arranged on the side of the arc block close to the axis of the connecting sleeve, the first connecting rod passes through the arc groove, and a wedge block is fixedly arranged on the side of the two first connecting rods away from the arc block, and a first spring is sleeved on the outer side of the first connecting rod, and the two ends of the first spring are respectively connected to the wedge block and the inner wall of the connecting sleeve;

[0007] A hexagonal magnetic block is fixedly arranged at the bottom end of the output shaft of the electric wrench, a threaded sleeve is fixedly arranged on the outer side of the output shaft of the electric wrench, and an adjustment mechanism used in conjunction with the hexagonal magnetic block is arranged on the outer side of the threaded sleeve.

[0008] According to a favorable embodiment, the support frame is composed of two inverted L-shaped plates, a horizontal plate between the two inverted L-shaped plates, and a diagonal support plate connected between the horizontal section and the vertical section of the inverted L-shaped plates, two first tracks symmetrically distributed front and back are fixedly provided on the left side of the diagonal support plate of the support frame, a plurality of first electric sleeves are slidably provided on the first track, a second track is fixedly provided at the bottom ends of the two first electric sleeves corresponding to the front and back, a plurality of second electric sleeves are slidably provided on the second track, a top plate is fixedly provided at the bottom ends of the plurality of second electric sleeves, an electric push rod is fixedly provided on the upper part of the top plate, and the telescopic shaft of the electric push rod passes through the top plate and is connected to the upper part of the connecting frame.

[0009] According to a favorable embodiment, a motor is fixedly installed at the bottom of the horizontal plate of the connecting frame, and a driving gear is fixedly installed on the output shaft of the motor through the horizontal plate, a gear ring is fixedly installed on the outer upper end of the circular plate, and the gear ring is meshed with the driving gear, a display is fixedly installed on the support frame and located between the two horizontal plates, a control cabinet is fixedly installed on the upper part of the base, and the electric wrench, electric push rod, motor and display are all electrically connected to the control cabinet.

[0010] According to a favorable embodiment, a driving mechanism for driving the movable plate to move is provided at the bottom of the circular plate, and the driving mechanism includes a rotating rod rotatably provided at the bottom of the circular plate, a worm gear is fixedly provided on the outer side of the rotating rod, and two connecting blocks symmetrically distributed on the left and right are fixedly provided at the bottom of the circular plate, a worm is rotatably provided between the two connecting blocks, and the worm is meshed with the worm gear, a handle is rotatably provided at one end of one of the connecting blocks, and the handle is connected to the worm gear at one end close to the corresponding connecting block, and a second disc is fixedly provided at the bottom end of the rotating rod, and six arc-shaped openings are opened on the second disc.

[0011] According to a preferred embodiment, six first guide openings connected to the groove are opened on the upper part of the first disc, and a first guide rod is slidably arranged in the first guide opening. The top end of the first guide rod passes through the groove and the arc opening, and the bottom end of the first guide rod is connected to the upper part of the movable plate.

[0012] According to a favorable embodiment, an extrusion mechanism is provided on the outer side of the first support rod, and the extrusion mechanism includes a fixed ring fixedly provided in the middle part of the outer side of the first support rod, a sliding ring is slidably provided on the lower end of the outer side of the first support rod, and a second spring is provided between the sliding ring and the fixed ring, and three reinforcement rods are provided on the outer side of the sliding ring, and the bottom ends of the two reinforcement rods are fixedly provided with inverted L-shaped blocks, and the bottom end of the other reinforcement rod is fixedly provided with an arc rod, and the two ends of the arc rod are respectively connected to the two inverted L-shaped blocks.

[0013] According to a favorable embodiment, the adjustment mechanism includes a rotating ring threadedly arranged on the outside of the threaded sleeve, a movable ring is rotatably arranged at the bottom end of the rotating ring, a plurality of second connecting rods are fixedly arranged at the bottom of the movable ring, an adjustment ring is commonly fixedly arranged at the bottom ends of the plurality of second connecting rods, the adjustment ring is located on the outside of the hexagonal magnet, and a hexagonal opening adapted to the hexagonal magnet is opened on the adjustment ring.

[0014] According to a favorable embodiment, three second guide openings connected to the groove are opened at the bottom of the first disc, and the second guide openings are correspondingly arranged below the electric wrench, a second guide rod is slidably arranged in the second guide opening, the second guide rod is fixedly connected to the corresponding movable plate, and a Z-shaped plate is fixed at the end away from the second guide opening, the output shaft of the electric wrench passes through the Z-shaped plate and is rotatably connected to the Z-shaped plate, a second support rod is fixedly arranged at the bottom of the Z-shaped plate, a T-shaped groove is opened at the outer lower end of the second support rod, a T-shaped rod is slidably arranged in the T-shaped groove, one end of the T-shaped rod passes through the groove and is fixedly arranged with an extrusion block, the bottom end of the extrusion block is chamfered, and a third spring is sleeved on the outer side of the T-shaped rod, and the two ends of the third spring are respectively connected to the outer sides of the extrusion block and the second support rod.

[0015] According to a favorable embodiment, a circular opening for the first support rod to pass through is opened on the corresponding movable plate, and two rectangular openings connected to the circular opening are opened on the movable plate, and the two rectangular openings are symmetrically distributed with the circular opening as the center, and a rectangular plate is fixedly provided on the outer upper end of the first support rod, and the rectangular plate is slidably connected to the rectangular opening, and the top end of the rectangular plate passes through the rectangular opening.

[0016] According to a favorable embodiment, a mounting block is fixedly provided at the bottom end corresponding to the movable plate, a pull rod is slidably provided on the mounting block, a connecting ring is fixedly provided on the outer side of the pull rod, a fourth spring is sleeved on the outer side of the pull rod, and the two ends of the fourth spring are respectively connected to the mounting block and the connecting ring, a plurality of positioning holes for use with the pull rod are opened on the outer side of the first support rod, and the pull rod is plugged into the corresponding positioning holes.

[0017] Compared with the prior art, the intelligent tightening device for yaw reducer bolts provided by the embodiment of the present invention has the following beneficial effects:

[0018] 1. When two adjacent shells are bolted together, the present invention can use a centering mechanism to fully align the bolt holes on the two shells to ensure that the bolts are not easily displaced during the tightening process. At the same time, the six extrusion mechanisms and the extrusion blocks can squeeze and support the two shells during the tightening process of the bolts to ensure that the two shells are not easily displaced, thereby ensuring the tightening effect of the bolts. In addition, by tightening three bolts at the same time and distributing the three bolts in an equilateral triangle, this distribution method not only improves the efficiency of bolt tightening, but also enhances the stability during the bolt tightening process.

[0019] 2. In the present invention, the extrusion mechanism, the second support rod and the extrusion block are provided, and when the two shells are bolted together, the two shells can be extruded and supported by the cooperation of the extrusion mechanism and the extrusion block. At the same time, the inverted L-shaped block is made more stable when in use by the reinforcement rod and the arc plate, thereby ensuring that the two shells are tightly fitted and not easily displaced during the bolt connection process, avoiding the problem of unstable connection between the two shells due to gap or looseness. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of the present invention.

[0021] Figure 2 It is a connection structure diagram of the support frame and the connection frame in the present invention.

[0022] Figure 3 It is a partial structural diagram of the present invention.

[0023] Figure 4 It is a cross-sectional structural diagram of the shaping mechanism in the present invention.

[0024] Figure 5 It is a structural diagram of the connecting sleeve in the present invention.

[0025] Figure 6 It is a cross-sectional structural diagram of the connection between the electric wrench and the adjustment mechanism in the present invention.

[0026] Figure 7 It is a structural diagram of the connection between the adjusting mechanism and the threaded sleeve in the present invention.

[0027] Figure 8 It is a structural diagram of the connection between the circular plate and the driving mechanism in the present invention.

[0028] Fig. 9 It is a structural diagram of the connection between the moving plate and the extrusion mechanism in the present invention.

[0029] Fig.10 for Fig. 9 A magnified view of the structure in part A.

[0030] Fig.11 It is a cross-sectional structural diagram of the partial connection between the first disk and the first guide rod in the present invention.

[0031] Fig.12 This is a structural diagram of the connection between the first disc and the second guide rod in the present invention.

[0032] Fig.13 It is a cross-sectional structural diagram of the second support rod in the present invention.

[0033] Fig.14 This is a diagram showing the connection state between the adjusting ring and the hexagonal magnetic block when the adjusting ring moves downward in the present invention.

[0034] Fig.15 This is a state diagram of three shells stacked in the present invention.

[0035] 1. Base; 2. Support frame; 3. Connecting frame; 4. Circular plate; 5. U-shaped rod; 6. First disc; 7. Groove; 8. Moving plate; 9. Electric wrench; 10. First supporting rod; 11. Centering mechanism; 111. Vertical rod; 112. Round table block; 113. Connecting sleeve; 114. Arc groove; 115. Arc block; 116. First connecting rod; 117. Wedge block; 118. First spring; 12. Hexagonal magnetic block; 13. Threaded sleeve; 14. Adjusting mechanism; 141. Rotating ring; 142. Moving ring; 143. Second connecting rod; 144. Adjusting ring; 145. Hexagonal mouth; 15. First track; 16. First electric sleeve; 17. Second track; 18. Second electric sleeve; 19. Top plate; 20. Electric push rod; 21. Motor; 22. Driving gear; 2 3. Gear ring; 24. Display; 25. Control cabinet; 26. Driving mechanism; 261. Rotating rod; 262. Worm gear; 263. Connecting block; 264. Worm; 265. Handle; 266. Second disc; 267. Arc-shaped mouth; 27. First guide mouth; 28. First guide rod; 29. ​​Extrusion mechanism; 291. Fixed ring; 292. Sliding ring; 293. Second spring; 294. Reinforcement rod; 295. Inverted L-shaped block; 296. Arc-shaped rod; 30. Second guide mouth; 31. Second guide rod; 32. Z-shaped plate; 33. Second support rod; 34. T-shaped slot; 35. Extrusion block; 36. T-shaped rod; 37. Third spring; 38. Round mouth; 39. Rectangular mouth; 40. Rectangular plate; 41. Mounting block; 42. Pull rod; 43. Connecting ring; 44. Fourth spring; 45. Positioning mouth. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-15 The present application is further described in detail.

[0037] Please refer to Figure 1 , Figure 3 , Figure 6 , Fig.11 and Fig.15, a yaw reducer bolt intelligent tightening device, including a base 1, a support frame 2 is fixedly arranged on the upper right side of the base 1, a connecting frame 3 is arranged on the inner side of the support frame 2, the connecting frame 3 is composed of a horizontal plate and a circular ring, a circular plate 4 is rotatably arranged on the inner side of the circular ring of the connecting frame 3, three U-shaped rods 5 distributed in a circular array are fixedly arranged on the outer side of the circular plate 4, a first disc 6 is fixedly arranged at one end of the three U-shaped rods 5 close to each other, six grooves 7 distributed in a circular array are opened inside the first disc 6, a moving plate 8 is slidably arranged in the groove 7, an electric wrench 9 is fixedly arranged on the upper part of the three moving plates 8, a hexagonal magnetic block 12 is fixedly arranged on the bottom end of the output shaft of the electric wrench 9, and a first support rod 10 is slidably arranged on the upper part of the other three moving plates 8, and the electric wrench 9 and the first support rod 10 are staggered, and a centering mechanism 11 is arranged at the bottom end of the first support rod 10.

[0038] Since the yaw reducer is usually assembled by sequentially splicing three shells, namely, upper, middle and lower shells, the bolt holes on two adjacent shells can be completely aligned using the centering mechanism 11, and then the bolts can be tightened using the electric wrench 9 and the hexagonal magnet 12.

[0039] See also Figure 1 and Figure 2 The support frame 2 is composed of two inverted L-shaped plates, a horizontal plate between the two inverted L-shaped plates, and a diagonal support plate connected between the horizontal section and the vertical section of the inverted L-shaped plates. Two first rails 15 symmetrically distributed front and back are fixedly arranged on the left side of the diagonal support plate of the support frame 2. A plurality of first electric sleeves 16 are slidably arranged on the first rail 15. A second rail 17 is fixedly arranged at the bottom ends of the two corresponding first electric sleeves 16 front and back. A plurality of second electric sleeves 18 are slidably arranged on the second rail 17. A top plate 19 is fixedly arranged at the bottom ends of the plurality of second electric sleeves 18. An electric push rod 20 is fixedly arranged on the upper part of the top plate 19, and the telescopic shaft of the electric push rod 20 passes through the top plate 19 and is connected to the upper part of the connecting frame 3.

[0040] In order to facilitate the tightening of the bolts, the staff first stacks the two shells vertically and makes the bolt holes on the two shells initially correspond, then moves the base 1 to move the support frame 2 to the shell, and then drives the connecting frame 3 to move downward through the electric push rod 20, so that the hexagonal magnetic block 12 on the electric wrench 9 is close to the bolt hole on the shell, so as to facilitate the subsequent tightening of the bolts.

[0041] See also Figure 3 , Figure 8 and Fig.15A driving mechanism 26 for driving the moving plate 8 to move is provided at the bottom of the circular plate 4. The driving mechanism 26 includes a rotating rod 261 rotatably provided at the bottom of the circular plate 4. A worm gear 262 is fixedly provided on the outer side of the rotating rod 261. Two connecting blocks 263 symmetrically distributed on the left and right are fixedly provided at the bottom of the circular plate 4. A worm 264 is rotatably provided between the two connecting blocks 263, and the worm 264 is meshed with the worm gear 262. A handle 265 is rotatably provided at one end of one of the connecting blocks 263. The handle 265 is connected to the worm 264 at one end close to the corresponding connecting block 263. A second disc 266 is fixedly provided at the bottom end of the rotating rod 261, and six arc-shaped openings 267 are opened on the second disc 266. Six first guide openings 27 connected to the groove 7 are opened on the upper part of the first disc 6, and a first guide rod 28 is slidably arranged in the first guide opening 27. The top end of the first guide rod 28 passes through the groove 7 and passes through the arc opening 267, and the bottom end of the first guide rod 28 is connected to the upper part of the movable plate 8.

[0042] In order to align the bolts with the bolt holes on the two shells, after lowering the connecting frame 3 to a certain height, the staff can rotate the handle 265 to drive the worm 264 to rotate, the worm 264 drives the worm wheel 262 to rotate, the worm wheel 262 drives the rotating rod 261 to rotate, the rotating rod 261 drives the second disc 266 to rotate, and the second disc 266 rotates to use the arc-shaped opening 267 to push the first guide rod 28 to slide in the first guide opening 27, the sliding of the first guide rod 28 can drive the moving plate 8 to move, the movement of the moving plate 8 will drive the first support rod 10 and the electric wrench 9 to move, the movement of the electric wrench 9 can drive the hexagonal magnetic block 12 to move, so that the hexagonal magnetic block 12 can be moved to the bolt hole, and then the bolt is adsorbed on the hexagonal magnetic block 12, at this time, the position of the bolt corresponds to the bolt hole, and then continue to drive the connecting frame 3 downward to make the bottom end of the bolt move to contact the bolt hole, and the rotation of the second disc 266 can be used to adjust the use position of the electric wrench 9, so that it is convenient to tighten the bolts on shells of different sizes.

[0043] See also Figure 1 , Figure 4 , Figure 5 and Fig.15The centering mechanism 11 includes a vertical rod 111 fixedly arranged at the bottom end of the first support rod 10, a truncated cone block 112 is fixedly arranged at the bottom end of the vertical rod 111, a connecting sleeve 113 is sleeved on the outer side of the vertical rod 111, and the truncated cone block 112 is located inside the connecting sleeve 113, and three arc grooves 114 distributed in a circular array are opened on the outer side of the connecting sleeve 113, and an arc block 115 is arranged in the arc groove 114. Two first connecting rods 116 symmetrically distributed in the upper and lower directions are fixedly arranged on the side of the arc block 115 close to the axis of the connecting sleeve 113, the first connecting rod 116 passes through the arc groove 114, and a wedge block 117 is fixedly arranged on the side of the two first connecting rods 116 away from the arc block 115, and a first spring 118 is sleeved on the outer side of the first connecting rod 116, and the two ends of the first spring 118 are respectively connected to the wedge block 117 and the inner wall of the connecting sleeve 113.

[0044] In order to fully align the bolt holes on the two shells when tightening the bolts, the connecting sleeve 113 will be driven to move synchronously during the movement of the first support rod 10, and the connecting sleeve 113 will also move downward synchronously during the downward movement of the hexagonal magnetic block 12, and the connecting sleeve 113 will be closer to the shell in the vertical direction. When the bottom end of the bolt on the hexagonal magnetic block 12 does not contact the bolt hole on the shell, the connecting sleeve 113 has been inserted into the initially corresponding bolt holes on the two shells. When the bottom end of the connecting sleeve 113 completely passes through the bolt hole on the upper shell and the bottom end of the connecting sleeve 113 contacts the bolt hole on the lower shell, the arc block 115 is located between the two shells. The first support rod 10 is connected to the bolt holes, and then as the first support rod 10 continues to move downward, the vertical rod 111 will be driven downward, and the downward movement of the vertical rod 111 will drive the truncated cone block 112 downward. The truncated cone block 112 moves downward and contacts the wedge block 117 to squeeze the wedge block 117. After the wedge block 117 is squeezed, the first connecting rod 116 will push the arc block 115 out of the arc groove 114, and the arc block 115 will contact the inner walls of the two bolt holes. Due to the shape and position of the arc block 115, the arc block 115 can be used to center the bolt holes on the two shells (that is, the two shells are self-centering), so that no deviation will occur when the bolts are screwed into the two bolt holes.

[0045] See also Figure 1 , Fig. 9 and Fig.15A squeezing mechanism 29 is arranged on the outer side of the first support rod 10, and the squeezing mechanism 29 includes a fixed ring 291 fixedly arranged in the middle part of the outer side of the first support rod 10, a sliding ring 292 is slidably arranged on the lower end of the outer side of the first support rod 10, and a second spring 293 is arranged between the sliding ring 292 and the fixed ring 291, and three reinforcement rods 294 are arranged on the outer side of the sliding ring 292, and the bottom ends of the two reinforcement rods 294 are fixedly arranged with inverted L-shaped blocks 295, and the bottom end of the other reinforcement rod 294 is fixedly arranged with an arc rod 296, and the two ends of the arc rod 296 are respectively connected to the two inverted L-shaped blocks 295.

[0046] In order to prevent the two shells from shifting when the bolts are tightened, after the bottom end of the connecting sleeve 113 contacts the bolt hole on the lower shell, the inner horizontal section of the inverted L-shaped block 295 contacts the upper part of the upper shell, and the inner vertical section of the inverted L-shaped block 295 contacts the outer sides of the two shells. Then, when the first support rod 10 continues to move downward, the second spring 293 can be squeezed by the fixing ring 291. The second spring 293 is squeezed and the inverted L-shaped block 295 is squeezed through the cooperation of the sliding ring 292 and the reinforcing rod 294. This squeezing effect enables the inverted L-shaped block 295 to fit more closely to the outer sides of the two shells. and the upper part, thereby enhancing the stability between the two shells, making it difficult for the two shells to shift when tightening the bolt, and then after the bottom end of the bolt contacts the bolt hole, the electric wrench 9 can drive the bolt to rotate, and at the same time the electric push rod 20 continues to drive the electric wrench 9 to move slowly downward to ensure that the bolt can be gradually and stably tightened into the corresponding bolt holes on the two shells, and because the three bolts are tightened at the same time, and the three bolts are distributed in an equilateral triangle, this distribution method not only improves the efficiency of bolt tightening, but also enhances the stability during the bolt tightening process, and can prevent the shell from being deformed or shifted due to uneven bolt tightening.

[0047] See also Fig.11 , Fig.12 Fig.13 and Fig.15The bottom of the first disc 6 is provided with three second guide openings 30 connected with the groove 7, and the second guide openings 30 are correspondingly arranged below the electric wrench 9, and a second guide rod 31 is slidably arranged in the second guide opening 30, and the second guide rod 31 is fixedly connected to the corresponding movable plate 8, and a Z-shaped plate 32 is fixed at one end away from the second guide opening 30, and the output shaft of the electric wrench 9 passes through the Z-shaped plate 32 and is rotatably connected to the Z-shaped plate 32, and a second support rod 33 is fixedly arranged at the bottom of the Z-shaped plate 32, and a T-shaped groove 34 is provided at the lower end of the outer side of the second support rod 33, and a T-shaped rod 36 is slidably arranged in the T-shaped groove 34, one end of the T-shaped rod 36 passes through the groove 7 and is fixedly provided with an extrusion block 35, and the bottom end of the extrusion block 35 is chamfered, and a third spring 37 is sleeved on the outer side of the T-shaped rod 36, and the two ends of the third spring 37 are respectively connected to the outer sides of the extrusion block 35 and the second support rod 33.

[0048] In order to provide better support for the shells during the process of tightening the bolts of the two shells, the Z-shaped plate 32 will also be driven downward when the electric wrench 9 moves downward. The downward movement of the Z-shaped plate 32 will drive the second support rod 33 to move downward. When the bottom end of the bolt is not in contact with the bolt hole on the shell, the second support rod 33 has been inserted into the interior of the shell at the upper end. At this time, after the extrusion block 35 contacts the inner wall of the shell at the upper end, the third spring 37 is used to make the extrusion block 35 abut against the inner wall of the shell at the upper end. In the process of tightening the bolt, the extrusion block 35 can always provide stable support for the shell at the upper end, thereby further ensuring the stability between the two shells during the bolt tightening process.

[0049] See also Figure 1 , Figure 2 and Figure 3 A motor 21 is fixedly arranged at the bottom of the horizontal plate of the connecting frame 3, and a driving gear 22 is fixedly arranged on the output shaft of the motor 21 through the horizontal plate. A gear ring 23 is fixedly arranged on the upper end of the outer side of the circular plate 4, and the gear ring 23 is meshed with the driving gear 22. A display 24 is fixedly arranged on the support frame 2 and located between the two horizontal plates. The display 24 can display the set torque. A control cabinet 25 is fixedly arranged on the upper part of the base 1, and the electric wrench 9, the electric push rod 20, the motor 21 and the display 24 are all electrically connected to the control cabinet 25.

[0050] In order to quickly and conveniently tighten the bolts between the two housings, after tightening the first group of three bolts, the electric push rod 20 can drive the electric wrench 9 to move upward, and then the motor 21 can drive the driving gear 22 to rotate. The rotation of the driving gear 22 can drive the circular plate 4 to rotate through the gear ring 23. The rotation of the circular plate 4 can drive the electric wrench 9 to rotate, so that the use position of the electric wrench 9 can be adjusted. After the use position of the electric wrench 9 is adjusted, continue to place new bolts on the hexagonal magnetic block 12 to tighten the bolts.

[0051] See also Fig. 9 , Fig.10 and Fig.11 A circular opening 38 is provided on the corresponding movable plate 8 for the first support rod 10 to pass through, and two rectangular openings 39 are provided on the movable plate 8 and are connected to the circular opening 38. The two rectangular openings 39 are symmetrically distributed with the circular opening 38 as the center. A rectangular plate 40 is fixedly provided on the outer upper end of the first support rod 10. The rectangular plate 40 is slidably connected to the rectangular opening 39, and the top end of the rectangular plate 40 passes through the rectangular opening 39.

[0052] A mounting block 41 is fixedly provided at the bottom end of the corresponding movable plate 8, a pull rod 42 is slidably provided on the mounting block 41, a connecting ring 43 is fixedly provided on the outer side of the pull rod 42, a fourth spring 44 is sleeved on the outer side of the pull rod 42, and both ends of the fourth spring 44 are respectively connected to the mounting block 41 and the connecting ring 43, a plurality of positioning openings 45 for use with the pull rod 42 are opened on the outer side of the first support rod 10, and the pull rod 42 is plugged into the corresponding positioning openings 45.

[0053] In order not to affect the tightening work of the second group of three bolts, after adjusting the use position of the electric wrench 9 by the operation of the motor 21, the staff can pull the pull rod 42 to move it out of the positioning hole 45 at the upper end. At this time, the limit lock on the first support rod 10 is cancelled, and then the first support rod 10 is pulled upward. The cooperation between the rectangular plate 40 and the rectangular hole 39 is used to prevent the first support rod 10 from rotating during the upward movement. When the positioning hole 45 at the lower end moves to the pull rod 42, the first support rod 10 is stopped and the pull rod 42 is released. Then, the elastic force of the fourth spring 44 can drive the pull rod 42 to be reinserted into the corresponding positioning hole 45, so that the first support rod 10 can be limit locked again, and then when the second group of three bolts are tightened, the connecting sleeve 113 and the inverted L-shaped block 295 will not contact the shell at the upper end, and will not affect the tightening work of the second group of three bolts.

[0054] See also Figure 6 , Figure 7 and Fig.14 A threaded sleeve 13 is fixedly arranged on the outer side of the output shaft of the electric wrench 9, and an adjustment mechanism 14 used in conjunction with the hexagonal magnetic block 12 is arranged on the outer side of the threaded sleeve 13. The adjustment mechanism 14 includes a rotating ring 141 threadedly arranged on the outer side of the threaded sleeve 13, a moving ring 142 is rotatably arranged on the bottom end of the rotating ring 141, a plurality of second connecting rods 143 are fixedly arranged on the bottom of the moving ring 142, and an adjustment ring 144 is fixedly arranged on the bottom ends of the plurality of second connecting rods 143, and the adjustment ring 144 is located on the outer side of the hexagonal magnetic block 12, and a hexagonal opening 145 adapted to the hexagonal magnetic block 12 is opened on the adjustment ring 144.

[0055] In order to facilitate the stable fixation of different types of bolts on the hexagonal magnet 12, when the bolt to be tightened is an inner hexagon bolt, the bolt can be directly aligned with the hexagonal magnet 12 to adsorb it on the hexagonal magnet 12. When the bolt to be tightened is an outer hexagon bolt, the staff can turn the rotating ring 141. The rotating ring 141 rotates and moves downward on the outside of the threaded sleeve 13. The downward movement of the rotating ring 141 will drive the adjusting ring 144 to move downward through the second connecting rod 143, so that the hexagonal magnet 12 can be stored in the interior of the adjusting ring 144. Then, the outer hexagon bolt can be inserted into the hexagonal mouth 145 on the adjusting ring 144, so that the top end of the outer hexagon bolt is adsorbed on the hexagonal magnet 12, and different types of hexagonal bolts can be stably fixed.

[0056] During the specific work, the staff first stacks the two shells vertically, and then uses the cooperation of the electric push rod 20, the worm 264 and the worm wheel 262 to adjust the use position of the electric wrench 9. Later, in the process of tightening the bolts, the two shells can be self-centered through the centering mechanism 11, so that the bolt holes on the two shells can be completely aligned, so that the bolts are not easy to shift during the tightening process, and then the inverted L-shaped block 295 can be used to squeeze the two shells during the downward movement of the electric wrench 9, so that the two shells are not easy to shift during the tightening process. At the same time, the extrusion block 35 can be used to stably support the shell at the upper end, thereby further ensuring the tightening effect of the bolt.

[0057] And because the three bolts are tightened at the same time and the three bolts are distributed in an equilateral triangle, this distribution method not only improves the efficiency of bolt tightening, but also enhances the stability during the bolt tightening process, and can prevent the shell from being deformed or shifted due to uneven bolt tightening. After the two lower shells are connected, the uppermost shell is connected and fixed to the two previously connected shells in the same way.

[0058] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A yaw reducer bolt intelligent tightening device, comprising a base (1), characterized in that: A support frame (2) is fixedly arranged on the right side of the upper part of the base (1), a connecting frame (3) is arranged on the inner side of the supporting frame (2), the connecting frame (3) is composed of a horizontal plate and a circular ring, a circular plate (4) is rotatably arranged on the inner side of the circular ring of the connecting frame (3), three U-shaped rods (5) distributed in a circular array are fixedly arranged on the outer side of the circular plate (4), a first circular plate (6) is fixedly arranged at one end of the three U-shaped rods (5) close to each other, six grooves (7) distributed in a circular array are opened inside the first circular plate (6), a movable plate (8) is slidably arranged in the groove (7), an electric wrench (9) is fixedly arranged on the upper part of the three movable plates (8), a first supporting rod (10) is slidably arranged on the upper part of the other three movable plates (8), and the electric wrench (9) and the first supporting rod (10) are staggeredly arranged, and a centering mechanism (11) is arranged at the bottom end of the first supporting rod (10); The centering mechanism (11) comprises a vertical rod (111) fixedly arranged at the bottom end of the first support rod (10), a truncated cone block (112) fixedly arranged at the bottom end of the vertical rod (111), a connecting sleeve (113) sleeved on the outer side of the vertical rod (111), and the truncated cone block (112) is located inside the connecting sleeve (113), and three arc grooves (114) distributed in a circumferential array are opened on the outer side of the connecting sleeve (113), an arc block (115) is arranged in the arc groove (114), and the arc block (115) ) Two first connecting rods (116) are fixedly provided on one side close to the axis of the connecting sleeve (113) and are symmetrically distributed up and down. The first connecting rods (116) penetrate the arc groove (114). A wedge block (117) is fixedly provided on one side of the two first connecting rods (116) away from the arc block (115). A first spring (118) is sleeved on the outer side of the first connecting rod (116). Two ends of the first spring (118) are respectively connected to the wedge block (117) and the inner wall of the connecting sleeve (113); A hexagonal magnetic block (12) is fixedly arranged at the bottom end of the output shaft of the electric wrench (9), a threaded sleeve (13) is fixedly arranged on the outer side of the output shaft of the electric wrench (9), and an adjustment mechanism (14) used in conjunction with the hexagonal magnetic block (12) is arranged on the outer side of the threaded sleeve (13).

2. The intelligent tightening device for yaw reducer bolts according to claim 1 is characterized in that: The support frame (2) is composed of two inverted L-shaped plates, a horizontal plate between the two inverted L-shaped plates, and an inclined support plate connected between the horizontal section and the vertical section of the inverted L-shaped plates. Two first rails (15) symmetrically distributed front and back are fixedly arranged on the left side of the inclined support plate of the support frame (2). A plurality of first electric sliding sleeves (16) are slidably arranged on the first rail (15). A second rail (17) is fixedly arranged at the bottom ends of the two first electric sliding sleeves (16) corresponding to the front and back. A plurality of second electric sliding sleeves (18) are slidably arranged on the second rail (17). A top plate (19) is fixedly arranged at the bottom ends of the plurality of second electric sliding sleeves (18). An electric push rod (20) is fixedly arranged on the upper part of the top plate (19), and a telescopic shaft of the electric push rod (20) passes through the top plate (19) and is connected to the upper part of the connection frame (3).

3. The intelligent tightening device for yaw reducer bolts according to claim 2 is characterized in that: A motor (21) is fixedly arranged at the bottom of the horizontal plate of the connection frame (3); an output shaft of the motor (21) penetrates through the horizontal plate and is fixedly arranged with a driving gear (22); a gear ring (23) is fixedly arranged at the upper end of the outer side of the circular plate (4); the gear ring (23) is meshed with the driving gear (22); a display (24) is fixedly arranged on the support frame (2) and located between the two horizontal plates; a control cabinet (25) is fixedly arranged on the upper part of the base (1); and the electric wrench (9), the electric push rod (20), the motor (21) and the display (24) are all electrically connected to the control cabinet (25).

4. The intelligent tightening device for bolts of a yaw reducer according to claim 1 is characterized in that: A driving mechanism (26) for driving the moving plate (8) to move is arranged at the bottom of the circular plate (4), the driving mechanism (26) comprising a rotating rod (261) rotatably arranged at the bottom of the circular plate (4), a worm gear (262) being fixedly arranged on the outer side of the rotating rod (261), two connecting blocks (263) symmetrically distributed on the left and right are fixedly arranged at the bottom of the circular plate (4), a worm gear (264) is rotatably arranged between the two connecting blocks (263), and the worm gear (264) is meshed with the worm gear (262), a handle (265) is rotatably arranged at one end of one of the connecting blocks (263), and the handle (265) is connected to the worm gear (264) at one end close to the corresponding connecting block (263), and a second disc (266) is fixedly arranged at the bottom end of the rotating rod (261), and six arc-shaped openings (267) are opened on the second disc (266).

5. The intelligent tightening device for yaw reducer bolts according to claim 4 is characterized in that: The upper part of the first disc (6) is provided with six first guide openings (27) connected with the groove (7), and a first guide rod (28) is slidably arranged in the first guide opening (27). The top end of the first guide rod (28) passes through the groove (7) and the arc-shaped opening (267), and the bottom end of the first guide rod (28) is connected with the upper part of the movable plate (8).

6. The intelligent tightening device for bolts of a yaw reducer according to claim 1, characterized in that: An extrusion mechanism (29) is arranged on the outer side of the first support rod (10), and the extrusion mechanism (29) comprises a fixed ring (291) fixedly arranged in the middle part of the outer side of the first support rod (10); a sliding ring (292) is slidably arranged on the lower end of the outer side of the first support rod (10), and a second spring (293) is arranged between the sliding ring (292) and the fixed ring (291); three reinforcement rods (294) are arranged on the outer side of the sliding ring (292); the bottom ends of the two reinforcement rods (294) are fixedly arranged with an inverted L-shaped block (295); the bottom end of the other reinforcement rod (294) is fixedly arranged with an arc rod (296), and the two ends of the arc rod (296) are respectively connected to the two inverted L-shaped blocks (295).

7. The intelligent tightening device for bolts of a yaw reducer according to claim 1 is characterized in that: The adjustment mechanism (14) comprises a rotating ring (141) threadedly arranged on the outside of the threaded sleeve (13); a moving ring (142) is rotatably arranged at the bottom end of the rotating ring (141); a plurality of second connecting rods (143) are fixedly arranged at the bottom of the moving ring (142); an adjustment ring (144) is commonly fixedly arranged at the bottom ends of the plurality of second connecting rods (143); the adjustment ring (144) is located on the outside of the hexagonal magnetic block (12); and a hexagonal opening (145) adapted to the hexagonal magnetic block (12) is provided on the adjustment ring (144).

8. The intelligent tightening device for bolts of a yaw reducer according to claim 1 is characterized in that: The bottom of the first disc (6) is provided with three second guide openings (30) connected with the groove (7), and the second guide openings (30) are correspondingly arranged below the electric wrench (9). A second guide rod (31) is slidably arranged in the second guide openings (30), the second guide rod 31 is fixedly connected to the corresponding movable plate (8), and a Z-shaped plate (32) is fixed at one end away from the second guide opening (30), the output shaft of the electric wrench (9) passes through the Z-shaped plate (32) and is rotatably connected to the Z-shaped plate (32), and the Z-shaped plate (32) is fixed to the second guide rod 31. A second support rod (33) is fixedly arranged at the bottom of the support rod (32), a T-shaped groove (34) is opened at the lower end of the outer side of the second support rod (33), a T-shaped rod (36) is slidably arranged in the T-shaped groove (34), one end of the T-shaped rod (36) passes through the groove (7) and is fixedly arranged with an extrusion block (35), the bottom end of the extrusion block (35) is chamfered, and a third spring (37) is sleeved on the outer side of the T-shaped rod (36), and the two ends of the third spring (37) are respectively connected to the extrusion block (35) and the outer side of the second support rod (33).

9. The intelligent tightening device for bolts of a yaw reducer according to claim 1, characterized in that: A circular opening (38) is provided on the corresponding movable plate (8) for the first support rod (10) to pass through, and two rectangular openings (39) are provided on the movable plate (8) and are connected to the circular opening (38). The two rectangular openings (39) are symmetrically distributed with the circular opening (38) as the center. A rectangular plate (40) is fixedly provided on the outer upper end of the first support rod (10). The rectangular plate (40) is slidably connected to the rectangular opening (39), and the top end of the rectangular plate (40) passes through the rectangular opening (39).

10. The intelligent tightening device for bolts of a yaw reducer according to claim 1, characterized in that: A mounting block (41) is fixedly provided at the bottom end corresponding to the movable plate (8), a pull rod (42) is slidably passed through the mounting block (41), a connecting ring (43) is fixedly provided on the outer side of the pull rod (42), a fourth spring (44) is sleeved on the outer side of the pull rod (42), and the two ends of the fourth spring (44) are respectively connected to the mounting block (41) and the connecting ring (43), and a plurality of positioning openings (45) for use with the pull rod (42) are opened on the outer side of the first support rod (10), and the pull rod (42) is plugged into the corresponding positioning openings (45).

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