CN214788931U - Automatic correction rotating shaft and gear transmission assembly - Google Patents
Automatic correction rotating shaft and gear transmission assembly Download PDFInfo
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- CN214788931U CN214788931U CN202120541603.8U CN202120541603U CN214788931U CN 214788931 U CN214788931 U CN 214788931U CN 202120541603 U CN202120541603 U CN 202120541603U CN 214788931 U CN214788931 U CN 214788931U
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Abstract
An automatic correction rotating shaft comprises a step shaft body, an assembly shaft body and a correction piece, wherein the assembly shaft body is arranged at one end of the step shaft body, and a first slot is formed in the assembly shaft body; the correcting piece capable of floating in the radial direction is installed inside the first slot, the correcting piece is assembled in the first slot through a positioning pin, the positioning pin is connected with the correcting piece in a sliding mode in the radial direction, and the positioning pin is used for stopping the correcting piece in the axial direction; the utility model discloses a but radial unsteady correcting element can remove in the design tolerance within range, and like this, even there is the relatively poor condition of concentricity in the motor assembly, the correcting element also can guarantee that transmission position symmetry is equal basically, guarantees the axiality of junction, makes that the pivot subassembly is even convey the reduction gear box to the moment of torsion on, improves the stability that combines between gear box and the brushless motor, can solve because the motor noise problem that assembly error brought.
Description
Technical Field
The utility model belongs to the technical field of the motor is made, in particular to automatic rectify pivot and gear drive subassembly.
Background
For a motor with a reduction gear box, a transmission core component of the motor and the reduction gear box is a rotating shaft. Because the installation sizes of the motor and the gear box are finished by lathe finishing, and then the motor and the gear box can be installed into a product only by fastening screws, the concentricity of the transmission size is difficult to be controlled within 0.08 mm. The existing rotating shaft is in integrated transmission (as shown in figure 5), the precision of a single rotating shaft is good, the concentricity can be controlled within 0.02mm, and the problem of the concentricity of the rotating shaft can also exist when the high-precision rotating shaft is arranged between a motor and a gear box.
SUMMERY OF THE UTILITY MODEL
The utility model discloses not enough to prior art exists provides an automatic correction pivot, and concrete technical scheme is as follows:
an automatic correction rotating shaft comprises a step shaft body, an assembly shaft body and a correction piece, wherein the assembly shaft body is arranged at one end of the step shaft body, and a first slot is formed in the assembly shaft body;
but the internally mounted of first slot has radial unsteady correction piece, the correction piece passes through the shop bolt and assembles in first slot, shop bolt and the radial sliding connection of correction piece, the shop bolt is used for from axial backstop correction piece.
Furthermore, the correcting part comprises a correcting slide block and a connecting shaft, the correcting slide block is of a cylindrical structure or a cuboid structure, a pin hole is formed in the correcting slide block, the positioning pin penetrates through the pin hole in a sliding mode, the outer diameter of the correcting slide block is smaller than the inner diameter of the first slot, a floating gap is reserved between the correcting slide block and the first slot, the concentric connecting shaft is perpendicularly arranged on the outer end face of the correcting slide block, and the connecting shaft is of a polygonal structure.
Furthermore, a blocking ring is arranged on the outer wall of the assembling shaft body close to the step shaft body, and the outer diameter of the blocking ring is larger than that of the assembling shaft body.
Furthermore, the outer wall of the step shaft body is provided with key grooves distributed in an annular array.
A gear transmission assembly comprises a brushless motor and a gear reduction box, wherein the brushless motor comprises a first shell and a rotating shaft, the rotating shaft is installed at the axis of the first shell and comprises a step shaft body, an assembling shaft body and a correcting part, the assembling shaft body is arranged at one end of the step shaft body, a first slot is formed in the assembling shaft body, the correcting part capable of floating in the radial direction is installed in the first slot, the correcting part is assembled in the first slot through a positioning pin, the positioning pin is connected with the correcting part in a sliding mode, and the positioning pin is used for limiting the correcting part in the axial direction;
the gear reduction box comprises an input main shaft and a second shell, the input main shaft is installed at the inner input end of the second shell, the second shell is fixedly assembled with the first shell, the input main shaft is assembled and inserted into the first slot, the input main shaft is assembled and connected with the correcting part, and the input main shaft and the correcting part are matched and synchronously rotated.
Furthermore, the correcting part comprises a correcting slide block and a connecting shaft, the correcting slide block is of a cylindrical structure or a cuboid structure, a pin hole is formed in the correcting slide block, the positioning pin penetrates through the pin hole in a sliding mode, the outer end face of the correcting slide block is vertically provided with the concentric connecting shaft, and the connecting shaft is of a polygonal structure; and a second slot which is matched and spliced with the connecting shaft is formed in the center of the outer end of the input main shaft.
Furthermore, a blocking ring is arranged on the outer wall of the assembling shaft body close to the step shaft body, and the outer diameter of the blocking ring is larger than that of the assembling shaft body.
Furthermore, the outer wall of the step shaft body is provided with key grooves distributed in an annular array.
The utility model has the advantages that: but radial unsteady correcting element can move in the design tolerance within range, like this, even there is the relatively poor condition of concentricity in the motor assembly, the correcting element also can guarantee that transmission position symmetry is equal basically, guarantees the axiality of junction, makes the even moment of torsion that conveys the reduction gear case of pivot subassembly, improves the stability that combines between gear box and the brushless motor, can solve because the motor noise problem that assembly error brought.
Drawings
Fig. 1 shows a schematic structural diagram of an automatic correction rotating shaft of the present invention;
fig. 2 shows a schematic view of the structure of the rotating shaft of the present invention;
FIG. 3 shows an enlarged schematic view of FIG. 1 at A;
fig. 4 shows a schematic structural view of the correction member of the present invention;
FIG. 5 is a schematic view of an integrated spindle according to the prior art;
shown in the figure: 1. a brushless motor; 11. a first housing; 2. a rotating shaft; 21. a step shaft body; 211. a keyway; 22. a baffle ring; 23. assembling a shaft body; 231. a first slot; 24. a correction member; 241. correcting the sliding block; 2411. a pin hole; 242. a connecting shaft; 25. positioning a pin; 26. a floating gap; 3. a gear reduction box; 31. inputting a main shaft; 311. a second slot; 32. a second housing.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
An automatic correction rotating shaft comprises a step shaft body 21, an assembly shaft body 23 and a correction piece 24, wherein the assembly shaft body 23 is arranged at one end of the step shaft body 21, and a first slot 231 is formed in the assembly shaft body 23;
a radially floating correcting piece 24 is installed inside the first slot 231, the correcting piece 24 is assembled in the first slot 231 through a positioning pin 25, the positioning pin 25 is connected with the correcting piece 24 in a radial sliding mode, and the positioning pin 25 is used for stopping the correcting piece 24 from the axial direction; but radial unsteady correcting element can move in the design tolerance within range, like this, even there is the relatively poor condition of concentricity in the motor assembly, the correcting element also can guarantee that transmission position symmetry is equal basically, guarantees the axiality of junction, makes the even moment of torsion that conveys the reduction gear case of pivot subassembly, improves the stability that combines between gear box and the brushless motor, can solve because the motor noise problem that assembly error brought.
As an improvement of the above technical solution, the calibration piece 24 includes a calibration slider 241 and a connecting shaft 242, the calibration slider 241 has a cylindrical structure or a rectangular parallelepiped structure, a pin hole 2411 is formed inside the calibration slider 241, the positioning pin 25 slidably penetrates through the pin hole 2411, the outer diameter of the calibration slider 241 is smaller than the inner diameter of the first slot 231, and a floating gap 26 is left between the calibration slider 241 and the first slot 231; the floating clearance is the tolerance adjusting interval of the correcting slide block, and the positioning pin can ensure that the correcting slide block can radially slide to adjust the position and cannot axially move.
A concentric connecting shaft 242 is vertically arranged on the outer end face of the correcting slider 241, and the connecting shaft 242 is of a polygonal structure; the polygon prism structure is designed to ensure synchronous transmission and avoid unequal connection movement.
As an improvement of the above technical solution, a stop ring 22 is arranged on the outer wall of the assembling shaft body 23 near the step shaft body 21, and the outer diameter of the stop ring 22 is larger than that of the assembling shaft body 23; the design of the baffle ring can realize the assembly stop, so that the rotating shaft can be accurately and quickly assembled to an appointed position when being assembled with the input shaft of the gear reduction box.
As an improvement of the above technical solution, the outer wall of the step shaft body 21 is provided with key slots 211 distributed in an annular array; the keyway is used for guaranteeing the stability of step axis body.
A gear transmission assembly comprises a brushless motor 1 and a gear reduction box 3, wherein the brushless motor 1 comprises a first shell 11 and a rotating shaft 2, the rotating shaft 2 is installed at the axis of the first shell 11, the rotating shaft 2 comprises a step shaft body 21, an assembly shaft body 23 and a correcting piece 24, the assembly shaft body 23 is arranged at one end of the step shaft body 21, a first slot 231 is formed in the assembly shaft body 23, the correcting piece 24 capable of floating in the radial direction is installed in the first slot 231, the correcting piece 24 is assembled in the first slot 231 through a positioning pin 25, the positioning pin 25 is in sliding connection with the correcting piece 24, and the positioning pin 25 is used for restraining and limiting the correcting piece 24 in the axial direction; a baffle ring 22 is arranged on the outer wall of the assembling shaft body 23 close to the step shaft body 21, and the outer diameter of the baffle ring 22 is larger than that of the assembling shaft body 23; the outer wall of the step shaft body 21 is provided with key slots 211 distributed in an annular array;
the gear reduction box 3 comprises an input main shaft 31 and a second shell 32, the input main shaft 31 is installed at the inner input end of the second shell 32, the second shell 32 and the first shell 11 are fixedly assembled, the input main shaft 31 is assembled and inserted into the first slot 231, the input main shaft 31 is assembled and connected with the correcting part 24, and the input main shaft 31 and the correcting part 24 are matched and synchronously rotated;
the first shell is assembled and connected with the second shell, so that the input main shaft and the correcting part can be fixedly assembled, and the correcting part is axially restricted by the positioning pin and radially restricted by the input main shaft, so that the transmission stability is ensured, and the displacement of the correcting part in the transmission process is avoided.
The axial direction is the axial direction of the rotating shaft, and the radial direction is vertical to the axial direction of the rotating shaft.
As an improvement of the above technical solution, the calibration piece 24 includes a calibration slider 241 and a connection shaft 242, the calibration slider 241 has a cylindrical structure or a rectangular parallelepiped structure, a pin hole 2411 is formed inside the calibration slider 241, the positioning pin 25 slidably penetrates through the pin hole 2411, a concentric connection shaft 242 is vertically arranged on the outer end surface of the calibration slider 241, and the connection shaft 242 has a polygonal structure; the center of the outer end of the input spindle 31 is provided with a second slot 311 which is in fit and plug-in connection with the connecting shaft 242.
The utility model discloses when implementing:
a first step of aligning the first housing 11 with the second housing 32 to be unsecured;
secondly, inserting the input main shaft 31 of the gear reduction box 3 into the first slot 231, inserting the connecting shaft 242 into the second slot 311 in the inserting process, if an eccentric difference exists between the connecting shaft 242 and the second slot 311, the inner wall of the second slot 311 extrudes and pushes the correcting slider 241 to displace along the positioning pin 25, when the input main shaft 31 is completely butted with the rotating shaft 2, the correcting slider 241 is radially adjusted to be in the coaxial position with the input main shaft 31, and the end face of the input main shaft 31 is attached to the end face of the correcting slider 241 for stopping;
and thirdly, the first shell 11 and the second shell 32 are fastened into a whole.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. An automatic correction pivot which characterized in that: the rotating shaft comprises a step shaft body (21), an assembling shaft body (23) and a correcting piece (24), wherein the assembling shaft body (23) is arranged at one end of the step shaft body (21), and a first slot (231) is formed in the assembling shaft body (23);
the interior of the first slot (231) is provided with a radially floating correcting piece (24), the correcting piece (24) is assembled in the first slot (231) through a positioning pin (25), the positioning pin (25) is in radial sliding connection with the correcting piece (24), and the positioning pin (25) is used for stopping the correcting piece (24) from the axial direction.
2. An automatically aligning axle as defined in claim 1, wherein: the correcting piece (24) comprises a correcting slider (241) and a connecting shaft (242), the correcting slider (241) is of a cylindrical structure or a cuboid structure, a pin hole (2411) is formed in the correcting slider (241), a positioning pin (25) penetrates through the pin hole (2411) in a sliding mode, the outer diameter of the correcting slider (241) is smaller than the inner diameter of a first slot (231), a floating gap (26) is reserved between the correcting slider (241) and the first slot (231), the outer end face of the correcting slider (241) is perpendicularly provided with the concentric connecting shaft (242), and the connecting shaft (242) is of a polygonal structure.
3. An automatically aligning axle as defined in claim 1, wherein: the outer wall of the assembling shaft body (23) is provided with a retaining ring (22) at a position close to the step shaft body (21), and the outer diameter of the retaining ring (22) is larger than that of the assembling shaft body (23).
4. An automatically aligning axle as defined in claim 1, wherein: the outer wall of the step shaft body (21) is provided with key grooves (211) distributed in an annular array.
5. A gear assembly characterized by: the gear transmission assembly comprises a brushless motor (1) and a gear reduction box (3), the brushless motor (1) comprises a first shell (11) and a rotating shaft (2), the rotating shaft (2) is installed at the axis of the first shell (11), the rotating shaft (2) comprises a step shaft body (21), an assembly shaft body (23) and a correcting piece (24), the assembly shaft body (23) is arranged at one end of the step shaft body (21), a first slot (231) is formed in the assembly shaft body (23), the correcting piece (24) capable of floating in the radial direction is installed in the first slot (231), the correcting piece (24) is assembled in the first slot (231) through a positioning pin (25), the positioning pin (25) is connected with the correcting piece (24) in a sliding mode, and the positioning pin (25) is used for restraining the correcting piece (24) in a limiting mode in the axial direction;
the gear reduction box (3) comprises an input main shaft (31) and a second shell (32), the input main shaft (31) is installed at the inner input end of the second shell (32), the second shell (32) is fixedly assembled with the first shell (11), the input main shaft (31) is assembled and inserted into the first slot (231), the input main shaft (31) is assembled and connected with the correcting part (24), and the input main shaft (31) and the correcting part (24) are matched and synchronously rotated.
6. A gear assembly according to claim 5, wherein: the correcting piece (24) comprises a correcting slide block (241) and a connecting shaft (242), the correcting slide block (241) is of a cylindrical structure or a cuboid structure, a pin hole (2411) is formed in the correcting slide block (241), the positioning pin (25) penetrates through the pin hole (2411) in a sliding mode, the concentric connecting shaft (242) is vertically arranged on the outer end face of the correcting slide block (241), and the connecting shaft (242) is of a polygonal column structure; and a second slot (311) which is matched and spliced with the connecting shaft (242) is formed in the center of the outer end of the input main shaft (31).
7. A gear assembly according to claim 5, wherein: the outer wall of the assembling shaft body (23) is provided with a retaining ring (22) at a position close to the step shaft body (21), and the outer diameter of the retaining ring (22) is larger than that of the assembling shaft body (23).
8. A gear assembly according to claim 5, wherein: the outer wall of the step shaft body (21) is provided with key grooves (211) distributed in an annular array.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120541603.8U CN214788931U (en) | 2021-03-16 | 2021-03-16 | Automatic correction rotating shaft and gear transmission assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120541603.8U CN214788931U (en) | 2021-03-16 | 2021-03-16 | Automatic correction rotating shaft and gear transmission assembly |
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| Publication Number | Publication Date |
|---|---|
| CN214788931U true CN214788931U (en) | 2021-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120541603.8U Active CN214788931U (en) | 2021-03-16 | 2021-03-16 | Automatic correction rotating shaft and gear transmission assembly |
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| CN (1) | CN214788931U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112963520A (en) * | 2021-03-16 | 2021-06-15 | 安徽美孚智控科技有限公司 | Floating connection type rotating shaft and gear transmission assembly |
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2021
- 2021-03-16 CN CN202120541603.8U patent/CN214788931U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112963520A (en) * | 2021-03-16 | 2021-06-15 | 安徽美孚智控科技有限公司 | Floating connection type rotating shaft and gear transmission assembly |
| CN112963520B (en) * | 2021-03-16 | 2024-03-01 | 安徽美孚智控科技有限公司 | Floating connection type rotating shaft and gear transmission assembly |
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