Bolt removal and installation of torque increaser

Abstract

A bolt disassembly torque multiplier includes: a planetary gear mechanism, a first bracket plate and a second bracket plate, and an intermediate shaft assembly, a fixed output shaft assembly, a movable output shaft assembly and a sliding support seat, which are fixedly connected in sequence, and are respectively arranged between the first bracket plate and the second bracket plate, wherein: the intermediate shaft assembly is rotatably arranged between the first bracket plate and the second bracket plate and is connected to the planetary gear mechanism, the fixed output shaft assembly is rotatably arranged between the first bracket plate and the second bracket plate and is meshed with the intermediate shaft assembly, the movable output shaft assembly is movably arranged between the first bracket plate and the second bracket plate and is meshed with the intermediate shaft assembly, and the sliding support seat is movably arranged between the movable output shaft assembly and the first bracket plate. The present invention simplifies the operating steps of the locking bolt assembly and disassembly, greatly improves the work efficiency and safety, can adapt to the application of multiple transmission platforms, and the sliding support seat is easy to adjust, the center distance is convenient to adjust, the structure is more compact and simple, and the operation is more convenient.

Description

Technical Field

[0001] The invention relates to a technology in the field of disassembly and assembly of mechanical parts, in particular to a bolt disassembly and assembly torque increaser. Background Art

[0002] Locking bolts are widely used in the field of automobile transmission manufacturing. Tightening and loosening locking bolts requires very large torque. Taking automobile transmission as an example, the tightening torque of the locking bolts during assembly is very large and they are coated with thread tightening glue. When the thread tightening glue solidifies, the loosening torque required to remove the locking bolts is much greater than the tightening torque during assembly. Therefore, manual removal of locking bolts is time-consuming, labor-intensive and inefficient. Currently, the cost of a high-torque bolt loosening and tightening equipment is as high as tens of thousands or even hundreds of thousands of yuan. The factory's manual trial workshop, rework workshop, auto repair shop, etc. basically do not equip this equipment. Summary of the invention

[0003] In view of the above-mentioned deficiencies in the prior art, the present invention proposes a bolt-disassembled torque increaser, which is coaxially connected with an intermediate shaft assembly through a planetary gear mechanism. The intermediate shaft assembly is simultaneously meshed with a fixed output shaft and a movable output shaft. The intermediate shaft assembly outputs the increased torque to the fixed output end and the movable output end simultaneously, thereby completing the installation and disassembly of two locking nuts. The structure is more compact and simple, and the operation is more convenient.

[0004] The present invention is achieved through the following technical solutions:

[0005] The present invention comprises: a planetary gear mechanism, a first bracket plate and a second bracket plate which are fixedly connected in sequence, and an intermediate shaft assembly, a fixed output shaft assembly, a movable output shaft assembly and a sliding support seat which are respectively arranged between the first bracket plate and the second bracket plate, wherein: the intermediate shaft assembly is rotatably arranged between the first bracket plate and the second bracket plate and is connected to the planetary gear mechanism, the fixed output shaft assembly is rotatably arranged between the first bracket plate and the second bracket plate and is meshed with the intermediate shaft assembly, the movable output shaft assembly is movably arranged between the first bracket plate and the second bracket plate and is meshed with the intermediate shaft assembly, and the sliding support seat is movably arranged between the movable output shaft assembly and the first bracket plate.

[0006] The planetary gear mechanism comprises: a planet carrier, a ring gear, a sun gear and a plurality of planetary gears, wherein: the sun gear is arranged at the center of the ring gear, the planetary gears are evenly distributed in the ring gear and mesh with the sun gear and the ring gear respectively, and the planet carrier is arranged on a side of the center of the ring gear and connected to the planetary gears by bolts.

[0007] The intermediate shaft assembly comprises: an intermediate shaft with an intermediate shaft bearing, an intermediate gear and a flat key, wherein: the intermediate gear is arranged at the middle position of the intermediate shaft, the flat key is arranged on the intermediate shaft, and the inner ring of the intermediate shaft bearing is arranged on the intermediate shaft on the side close to the flat key and connected to the planetary gear mechanism.

[0008] The fixed output shaft assembly comprises: a fixed shaft, a fixed gear and a bearing support, wherein: the fixed gear is arranged in the middle position of the fixed shaft, and the bearing support is arranged at both ends of the fixed shaft and is respectively connected to the first bracket plate and the second bracket plate.

[0009] The movable output shaft assembly comprises: an output gear shaft with a bearing, wherein: the output gear shaft is connected to the sliding support seat and the second bracket plate respectively.

[0010] Technical Effects

[0011] Compared with the prior art, the present invention simplifies the operating steps of installing and removing the locking bolts, and the design of the dual output shafts greatly improves work efficiency and safety. At the same time, the center distance of the two output shafts is adjustable to adapt to the application of multiple transmission platforms, and the sliding support seat is easy to adjust, the center distance is easy to adjust, the torque multiplier has lower torque requirements on the input source, and a planetary gear mechanism is used as a first-stage reduction, so that the entire torque multiplier structure is more compact and simple, and the operation is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0013] Figure 2 It is the front view of the present invention;

[0014] Figure 3 Schematic diagram of the structure of the planetary gear mechanism of the present invention;

[0015] Figure 4 It is a back view of the planetary gear mechanism of the present invention;

[0016] Figure 5 for Figure 4 Schematic diagram of the cross-section structure;

[0017] Figure 6 for Figure 5 Schematic diagram of partial enlarged structure;

[0018] Figure 7 This is a schematic diagram of the overall structure of the handle of the present invention;

[0019] Figure 8 It is a schematic diagram of the structure of the intermediate shaft assembly of the present invention;

[0020] Fig. 9 This is a schematic diagram of the structure of the fixed output shaft assembly of the present invention;

[0021] Fig.10 It is a schematic diagram of the structure of the movable output shaft assembly of the present invention;

[0022] In the figure: a is a main view, and b is a schematic diagram of the cross-sectional structure of the main view;

[0023] Fig.11 This is a schematic diagram of the structure of the sliding support seat of the present invention;

[0024] Fig.12 This is a schematic diagram of the connection between the first bracket plate and the second bracket plate of the present invention;

[0025] Fig.13 This is a schematic diagram of the connecting rod structure of the present invention;

[0026] Fig.14 This is a schematic diagram of the structure of an example of the present invention;

[0027] In the figure: planetary gear mechanism 1, intermediate shaft assembly 2, fixed output shaft assembly 3, movable output shaft assembly 4, sliding support seat 5, first bracket plate 6, second bracket plate 7, planet carrier 8, gear ring 9, sun gear 10, planet gear 11, handle 12, mounting hole 13, threaded hole 14, spline groove 15, needle bearing 16, first wear-resistant spacer 17, square hole 18, outer ring 19, intermediate shaft 20, intermediate gear 21, intermediate shaft bearing 22, flat key 23, fixed shaft 24, fixed gear 25, bearing support 26, bearing 27, output gear shaft 28, blind hole 29, through hole 30, bearing boss 31, first arc groove 32, first bearing hole 33, center boss 34, second arc groove 35, second bearing hole 36, connecting rod 37, bolt 38, second wear-resistant spacer 39. DETAILED DESCRIPTION

[0028] like Figure 1 As shown, a bolt disassembly torque increaser involved in this embodiment comprises: a planetary gear mechanism 1, an intermediate shaft assembly 2, a fixed output shaft assembly 3, a movable output shaft assembly 4, a sliding support seat 5, a first bracket plate 6 and a second bracket plate 7, wherein: the planetary gear mechanism 1, the first bracket plate 6 and the second bracket plate 7 are symmetrically arranged with a center and stacked up and down in sequence through a connecting rod 37, the intermediate shaft assembly 2 is coaxially connected to the planetary gear mechanism 1 and is arranged in the center of the first bracket plate 6 and the second bracket plate 7, the fixed output shaft assembly 3 and the movable output shaft assembly 4 are respectively arranged between the first bracket plate 6 and the second bracket plate 7 and meshed with the intermediate shaft assembly 2, and the sliding support seat 5 is arranged under the first bracket plate 6 and connected to the movable output shaft assembly 4.

[0029] The planetary gear mechanism 1 comprises: a planet carrier 8, a ring gear 9, a sun gear 10 and three planetary gears 11, wherein: the sun gear 10 is arranged at the center of the ring gear 9, the three planetary gears 11 are evenly distributed in the ring gear 9 and mesh with the sun gear 10 and the ring gear 9 at the same time, and the planet carrier 8 is arranged on a side surface of the center of the ring gear 9 and is connected to the planetary gears 11 by bolts 38.

[0030] The planet carrier 8 is provided with a spline groove 15 matched with the intermediate shaft 20 , and a matching needle bearing 16 is provided at the connection with the planetary gear 11 , and a first wear-resistant spacer 17 is provided on the needle bearing 16 .

[0031] A handle 12 and a mounting hole 13 corresponding to the handle 12 are provided on the outer side of the gear ring 9 , and a threaded hole 14 is provided on the gear ring 9 .

[0032] A square hole 18 is provided at the top of the sun gear 10 , and a bearing outer ring 19 matched with the intermediate shaft 20 is provided inside the sun gear 10 .

[0033] like Figure 8 As shown, the intermediate shaft assembly 2 includes: an intermediate shaft 20 with an intermediate shaft bearing 22, an intermediate gear 21 and a flat key 23, wherein: the intermediate gear 21 is arranged at the middle position of the intermediate shaft 20, the flat key 23 is arranged on the intermediate shaft 20 and cooperates with the spline groove 15, and the inner ring of the intermediate shaft bearing 22 is arranged on the intermediate shaft 20 on the side close to the flat key 23 and cooperates with the outer ring 19 of the intermediate bearing.

[0034] The fixed output shaft assembly 3 includes: a fixed shaft 24, a fixed gear 25 and a bearing support 26, wherein: the fixed gear 25 is arranged at the middle position of the fixed shaft 24 and meshes with the intermediate gear 21, and the bearing support 26 is arranged at both ends of the fixed shaft and is respectively connected to the first bracket plate 6 and the second bracket plate 7.

[0035] like Fig.10 As shown, the movable output shaft assembly 4 includes: an output gear shaft 28 with a bearing 27, wherein: the output gear shaft 28 is respectively connected to the sliding support seat 5 and the second bracket plate 7 and meshes with the intermediate gear 21.

[0036] The output gear shaft 28 is provided with a blind hole 29 for mounting a bearing.

[0037] A second wear-resistant spacer 39 is provided between the output gear shaft 28 and the second bracket plate 7 .

[0038] like Fig.12 As shown, the first bracket plate 6 is provided with a first arc groove 32 and a first bearing hole 33, and the first bracket plate 6 is provided with a central boss 34 that cooperates with the sliding support seat 5, wherein: one end of the sliding support seat 5 is located in the first arc groove 32, and a bearing support 26 for fixing the output shaft assembly 3 is arranged in the first bearing hole 33.

[0039] The second bracket plate 7 is provided with a second arc groove 35 and a second bearing hole 36 , wherein: another bearing support 26 of the fixed output shaft assembly 3 is located in the second bearing hole 36 , and the output end of the movable output shaft assembly 4 is located in the second arc groove 35 .

[0040] like Fig.11 As shown, one end of the sliding support seat 5 is provided with a through hole 30 that matches the central boss 34, the other end is provided with a threaded hole 14 for connecting to the first bracket plate 6 on the front side, and a bearing boss 31 that matches the bearing 27 on the reverse side.

[0041] The length of the connecting rod 37 between the planetary gear mechanism 1 and the first bracket plate 6 is shorter than the connecting rod 37 between the first bracket plate 6 and the second bracket plate 7 .

[0042] like Fig.14 As shown, the device is provided with torque by a torque input source through the square hole 18 at the top of the sun gear 10 and drives the sun gear 10 to rotate. First, it passes through the first-stage deceleration of the planetary gear mechanism 1 (the ring gear is fixed, the sun gear is driven, and the planetary gear rotates while also revolving, driving the planetary carrier 8 to rotate together. The rotation direction of the planetary carrier 8 is consistent with that of the sun gear 10, and the deceleration and torque increase are performed). Then, the deceleration and torque increase are performed again through the meshing of the second-stage gears. The intermediate shaft assembly 2 simultaneously outputs the increased torque to the fixed output shaft assembly 3 as the fixed output end and the movable output shaft assembly 4 as the movable output end, thereby completing the installation and removal of the two locking nuts.

[0043] By loosening the two bolts fixing the sliding support seat and the first bracket plate, the sliding support seat and the movable output end of the torque increaser can be freely moved in the arc grooves of the first bracket plate and the second bracket plate respectively. By tightening the bolts, it can be adjusted to a satisfactory center distance position, meeting the requirements for disassembling and installing the locking bolts of the shaft system with different center distances.

[0044] The above-mentioned specific implementation can be partially adjusted in different ways by those skilled in the art without departing from the principle and purpose of the present invention. The protection scope of the present invention shall be based on the claims and shall not be limited by the above-mentioned specific implementation. Each implementation scheme within its scope shall be subject to the constraints of the present invention.

Claims

1. A bolt disassembly torque amplifier, characterized in that: include: A planetary gear mechanism, a first bracket plate and a second bracket plate, and an intermediate shaft assembly, a fixed output shaft assembly, a movable output shaft assembly and a sliding support seat, which are fixedly connected in sequence, wherein: the intermediate shaft assembly is rotatably arranged between the first bracket plate and the second bracket plate and connected to the planetary gear mechanism, the fixed output shaft assembly is rotatably arranged between the first bracket plate and the second bracket plate and meshed with the intermediate shaft assembly, the movable output shaft assembly is movably arranged between the first bracket plate and the second bracket plate and meshed with the intermediate shaft assembly, and the sliding support seat is movably arranged between the movable output shaft assembly and the first bracket plate; The planetary gear mechanism comprises: a planet carrier, a gear ring, a sun gear and a plurality of planetary gears, wherein: the sun gear is arranged at the center of the gear ring, the planetary gears are evenly distributed in the gear ring and mesh with the sun gear and the gear ring respectively, and the planet carrier is arranged at one side of the center of the gear ring and connected with the planetary gears through bolts; The first bracket plate is provided with a first arc groove and a first bearing hole, and the first bracket plate is provided with a central boss matched with the sliding support seat, wherein: the first arc groove is slidably connected with the sliding support seat, and the first bearing hole is matched with the fixed output shaft assembly; The second bracket plate is provided with a second arc groove and a second bearing hole, wherein: the second arc groove is slidably connected to the movable output shaft assembly, and the second bearing hole is matched with the fixed output shaft assembly; The intermediate shaft assembly comprises: an intermediate shaft with an intermediate shaft bearing, an intermediate gear and a flat key, wherein: the intermediate gear is arranged at the middle position of the intermediate shaft, the flat key is arranged on the intermediate shaft and matches with the spline groove, and the inner ring of the intermediate shaft bearing is arranged on the intermediate shaft on the side close to the flat key and matches with the outer ring of the bearing; The fixed output shaft assembly comprises: a fixed shaft, a fixed gear and a bearing support, wherein: the fixed gear is arranged in the middle of the fixed shaft, and the bearing support is arranged at both ends of the fixed shaft and connected to the first bracket plate and the second bracket plate respectively; The movable output shaft assembly comprises: an output gear shaft with a bearing, wherein: the output gear shaft is respectively connected to the sliding support seat and the second bracket plate and meshes with the intermediate gear; One end of the sliding support seat is provided with a through hole matching with the central boss, the other end is provided with a threaded hole for connecting with the first bracket plate on the positive side, and a bearing boss matching with the bearing is provided on the reverse side; The planet carrier is provided with a spline groove matched with the intermediate shaft, and a matching needle bearing is provided at the connection with the planetary gear, and a first wear-resistant spacer is provided on the needle bearing; The outer side of the gear ring is provided with a handle and a mounting hole corresponding to the handle, and the gear ring is provided with a threaded hole; The top of the sun gear is provided with a square hole, and the sun gear is provided with a bearing outer ring matched with the intermediate shaft.

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