CN215110319U - Hollow rotating platform - Google Patents
Hollow rotating platform Download PDFInfo
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- CN215110319U CN215110319U CN202121602380.8U CN202121602380U CN215110319U CN 215110319 U CN215110319 U CN 215110319U CN 202121602380 U CN202121602380 U CN 202121602380U CN 215110319 U CN215110319 U CN 215110319U
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Abstract
The utility model relates to a cavity rotary platform, its technical scheme main points are: the method comprises the following steps: the device comprises a rack, a first bearing, a driving component for connecting a motor, a first transmission component, a second transmission component and an adjusting part; the first transmission assembly is fixed on the transmission end of the driving assembly; a first cavity is arranged on the frame; a second cavity is arranged on the frame; the second transmission assembly is accommodated in the second cavity, and the second cavity is communicated with the bottom of the first cavity; the transmission end of the driving component is accommodated in the first cavity and a gap is reserved; the first transmission assembly is positioned at the bottom of the first cavity; the first transmission component is meshed with the second transmission component; the outer ring of the first bearing is fixedly connected with the second transmission assembly, and the inner ring of the first bearing is fixedly connected with the rack; the frame is also provided with an adjusting hole; the adjusting hole is communicated with the first cavity; the adjusting part passes through the adjusting hole and then abuts against the transmission end of the driving component; the torque-bearing mechanism has the advantages of high transmission precision and large bearing torque.
Description
Technical Field
The utility model relates to a speed reducer equipment technical field, more specifically say, it relates to a cavity rotary platform.
Background
The hollow rotary platform is a high-precision platform for providing rotary power, is used for being mounted on a mechanical part needing to rotate for rotation, and is widely applied to occasions such as a mechanical arm joint, a machine tool machining shaft, an automatic assembly line and the like.
However, the existing hollow rotary platform has an unreasonable internal structure design, and cannot adjust the clearance generated by the meshing of the gears, so that the precision is low and the bearing torque is small.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a cavity rotary platform has the transmission precision height, bears the big advantage of moment of torsion.
The above technical purpose of the present invention can be achieved by the following technical solutions: a hollow rotating platform comprising: the motor driving device comprises a frame, a first bearing, a driving component for connecting a motor, a first transmission component, a second transmission component and an adjusting part for pushing a transmission end of the driving component to adjust a gap between the first transmission component and the second transmission component; the first transmission assembly is fixed on the transmission end of the driving assembly; a first cavity used for accommodating the transmission end of the driving component and used for the rotation of the first transmission component is formed in the rack; a second cavity for the second transmission assembly to rotate is formed in the rack; the second transmission assembly is accommodated in the second cavity, and the second cavity is communicated with the bottom of the first cavity; the transmission end of the driving component is accommodated in the first cavity and a gap is reserved; the first transmission assembly is positioned at the bottom of the first cavity; the first transmission assembly is meshed with the second transmission assembly; the outer ring of the first bearing is fixedly connected with the second transmission assembly, and the inner ring of the first bearing is fixedly connected with the rack; the frame is also provided with an adjusting hole correspondingly matched with the adjusting part; the adjusting hole is communicated with the first cavity; the adjusting part penetrates through the adjusting hole and then is tightly abutted against the transmission end of the driving component.
Optionally, the frame includes: a hollow base plate; the first cavity is arranged on the hollow bottom plate; the second cavity is arranged on the hollow bottom plate; the adjusting holes are formed in the hollow bottom plate; and the inner ring of the first bearing is fixedly connected with the hollow bottom plate.
Optionally, the adjusting part includes: the jackscrew is used for pushing the transmission end of the driving component to adjust the gap between the first transmission component and the second transmission component; the jackscrew passes through the adjusting hole and then abuts against the transmission end of the driving component.
Optionally, the driving assembly includes: the mounting seat, at least one second bearing and a shaft sleeve used for connecting an output shaft of the motor are arranged on the mounting seat; the mounting seat is accommodated in the first cavity; the outer ring of the second bearing is fixed on the mounting seat, and the inner ring of the second bearing is abutted against the shaft sleeve; the transmission end of the shaft sleeve is accommodated in the first cavity and a gap is reserved; the first transmission assembly is fixed on the transmission end of the shaft sleeve.
Optionally, the first transmission assembly includes: a first gear; the first gear is fixed on the transmission end of the shaft sleeve and is positioned at the bottom of the first cavity; the first gear is in meshed connection with the second transmission assembly.
Optionally, the second transmission assembly comprises: a second gear; the second gear is in meshed connection with the first gear; the second gear is fixedly connected with the outer ring of the first bearing, and the second gear is accommodated in the second cavity.
Optionally, the first bearing is a cross roller bearing.
Optionally, the second bearing is a ball bearing.
Optionally, the first gear and the second gear are helical gears.
To sum up, the utility model discloses following beneficial effect has: the shaft sleeve of the hollow rotating platform is sleeved on the motor output shaft, and the motor output shaft can drive the shaft sleeve to rotate in the mounting seat when the motor works, so that the first gear fixed on the transmission end of the shaft sleeve is meshed to drive the second gear to rotate, and the second gear drives the outer ring of the first bearing to rotate; the jackscrew penetrates through an adjusting hole formed in the hollow bottom plate to push the mounting seat, so that the mounting seat drives the transmission end of the shaft sleeve to generate micro displacement, and the gap between the first gear and the second gear is adjusted to reach the optimal point of gear meshing; because the gear transmission mechanism is adopted, the bearing torque is large, the meshing clearance between the gears can be adjusted, and the transmission precision is high.
Drawings
Fig. 1 is a schematic cross-sectional view of the present invention;
fig. 2 is a schematic diagram of the internal structure of the present invention.
In the figure: 1. a hollow base plate; 2. a drive assembly; 21. a mounting seat; 22. a second bearing; 23. a shaft sleeve; 3. a first transmission assembly; 4. a second transmission assembly; 5. a first bearing; 6. carrying out top thread; 7. and adjusting the hole.
Detailed Description
In order to make the objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning a fixed connection, a slidable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature. The terms "vertical," "horizontal," "left," "right," "up," "down," and the like are used for descriptive purposes only and are not intended to indicate or imply that the referenced device or element must be in a particular orientation, constructed and operated, and therefore should not be construed as limiting the present invention.
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1, the utility model provides a cavity rotary platform, include: the motor driving device comprises a rack, a first bearing 5, a driving component 2 for connecting a motor, a first transmission component 3, a second transmission component 4 and an adjusting part for pushing a transmission end of the driving component 2 to adjust a gap between the first transmission component 3 and the second transmission component 4; the first transmission component 3 is fixed on the transmission end of the driving component 2; a first cavity used for accommodating the transmission end of the driving component 2 and allowing the first transmission component 3 to rotate is formed in the rack; a second cavity for the second transmission assembly 4 to rotate is formed in the rack; the second transmission assembly 4 is accommodated in the second cavity, and the second cavity is communicated with the bottom of the first cavity; the transmission end of the driving component 2 is accommodated in the first cavity and a gap is reserved; the first transmission assembly 3 is positioned at the bottom of the first cavity; the first transmission component 3 is meshed with the second transmission component 4; the outer ring of the first bearing 5 is fixedly connected with the second transmission assembly 4, and the inner ring of the first bearing 5 is fixedly connected with the rack; the frame is also provided with an adjusting hole 7 correspondingly matched with the adjusting part; the adjusting hole 7 is communicated with the first cavity; the adjusting part penetrates through the adjusting hole 7 and then abuts against the transmission end of the driving component 2.
The utility model provides a cavity rotary platform's theory of operation as follows: sleeving a driving component 2 of a hollow rotating platform on a motor output shaft, wherein the motor output shaft can drive the driving component 2 to work when the motor works, so that the driving component 2 drives a first transmission component 3 to work, the first transmission component 3 drives a second transmission component 4 to rotate through gear transmission, and the second transmission component 4 drives an outer ring of a first bearing 5 to rotate; for the matching of the gears, the larger the gap between the two gears is, the lower the precision is, and the smaller the gap is, the larger the friction coefficient of the gears is, the teeth breakage is easily caused, so that the transmission end of the driving component 2 can be pushed through the adjusting hole 7 by the adjusting part before the hollow rotating platform works, and the gap between the first transmission component 3 and the second transmission component 4 is adjusted to reach the optimal working state; because the gear transmission mechanism is adopted, the bearing torque is large, the transmission component 3 can be adjusted, and the transmission precision is high.
Further, the rack includes: a hollow base plate 1; the first cavity is arranged on the hollow bottom plate 1; the second cavity is arranged on the hollow bottom plate 1; the adjusting holes 7 are arranged on the hollow bottom plate 1; the inner ring of the first bearing 5 is fixedly connected with the hollow bottom plate 1. In this embodiment, the hollow bottom plate 1 is hollowed, and the hollowed area is equal to the area of the inner ring of the first bearing 5, so as to form a hollow platform together.
Further, the adjusting portion includes: the jackscrew 6 is used for pushing the transmission end of the driving component 2 to adjust the gap between the first transmission component 3 and the second transmission component 4; the jackscrew 6 penetrates through the adjusting hole 7 and then is tightly propped against the transmission end of the driving component 2. In the present embodiment, the jack 6 may be a metal jack; the jackscrew 6 passes the regulation hole 7 and supports the back tightly with the transmission end of drive assembly 2, can promote the transmission end of drive assembly 2 and produce small displacement to the messenger fixes first drive assembly 3 on drive assembly 2 and produces small displacement, and then makes the distance between first drive assembly 3 and the second drive assembly 4 take place small change, reaches the purpose of adjusting the clearance of first drive assembly 3 and second drive assembly 4, makes it reach best operating condition, thereby improves the output precision of cavity rotary platform.
Further, the driving assembly 2 includes: a mounting base 21, at least one second bearing 22 and a shaft sleeve 23 for connecting an output shaft of the motor; the mounting seat 21 is accommodated in the first cavity; the outer ring of the second bearing 22 is fixed on the mounting seat 21, and the inner ring of the second bearing 22 is tightly pressed against the shaft sleeve 23; the transmission end of the shaft sleeve 23 is accommodated in the first cavity with a gap; the first transmission assembly 3 is fixed on the transmission end of the shaft sleeve 23. Because the mounting seat 21 and the transmission end of the shaft sleeve 23 are accommodated in the first cavity and have a gap, when the jackscrew 6 passes through the adjusting hole 7 to push the driving component 2, one end of the jackscrew 6 is firstly abutted against the mounting seat 21, so that the mounting seat 21 drives the shaft sleeve 23 to generate micro displacement in the gap, and the first transmission component 3 fixed on the transmission end of the shaft sleeve 23 generates micro displacement in the gap; the shaft sleeve 22 is connected with the mounting seat 11 through at least one second bearing 21, so that the friction force rotating in the mounting seat 11 when the shaft sleeve 22 is connected with the output shaft of the motor is reduced, and the shaft sleeve 22 is prevented from directly contacting with the mounting seat 11 to generate friction to cause extra energy loss.
Further, the first transmission assembly 3 comprises: a first gear; the first gear is fixed on the transmission end of the shaft sleeve 23 and is positioned at the bottom of the first cavity; the first gear is in meshed connection with the second transmission assembly 4. The second transmission assembly 4 comprises: a second gear; the second gear is in meshed connection with the first gear; the second gear is fixedly connected with the outer ring of the first bearing 5, and the second gear is accommodated in the second cavity. The first gear and the second gear are helical gears.
In the present embodiment, the first gear and the second gear are helical gears instead of spur gears because: the common straight gears are meshed along the tooth width simultaneously, so that impact vibration noise is easy to generate, the transmission is not stable, the helical gear cylindrical gear transmission is superior to straight gears, the center distance can be tightened for high-speed heavy load, the meshing performance is good, the overlap ratio of the helical gear cylindrical gear is larger, the bearing capacity of the gear is improved, the bearing torque is larger, and the service life of the gear is prolonged; when the platform is driven, the first gear fixed on the shaft sleeve 23 drives the second gear to rotate through meshing connection, so that the second gear drives the outer ring of the first bearing 5 to rotate, and transmission transfer from the shaft sleeve 23 to the first bearing 5 is realized; for the cooperation of gears, the larger the gap between the two gears is, the lower the precision is, the smaller the gap is, the too large friction coefficient of the gears easily causes tooth breakage, so the jackscrew 6 penetrates through the adjusting hole 7 arranged on the hollow bottom plate 1 to push the mounting seat 21, the mounting seat 21 pushes the shaft sleeve 23, the gap between the first gear and the second gear is further adjusted, the optimal point of gear meshing is achieved, and the output precision of the hollow rotary platform is improved.
Further, the first bearing 5 is a cross roller bearing; the second bearing 22 is a ball bearing. In the embodiment, the crossed roller bearing has the advantages of small volume, high rotation precision, strong deformation resistance and large bearing capacity, and the ball bearing has the advantages of small point contact friction and long service life.
The utility model discloses a cavity rotary platform has the transmission precision height, bears the big advantage of moment of torsion.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. A hollow rotating platform, comprising: the motor driving device comprises a frame, a first bearing, a driving component for connecting a motor, a first transmission component, a second transmission component and an adjusting part for pushing a transmission end of the driving component to adjust a gap between the first transmission component and the second transmission component;
the first transmission assembly is fixed on the transmission end of the driving assembly; a first cavity used for accommodating the transmission end of the driving component and used for the rotation of the first transmission component is formed in the rack; a second cavity for the second transmission assembly to rotate is formed in the rack; the second transmission assembly is accommodated in the second cavity, and the second cavity is communicated with the bottom of the first cavity; the transmission end of the driving component is accommodated in the first cavity and a gap is reserved; the first transmission assembly is positioned at the bottom of the first cavity; the first transmission assembly is meshed with the second transmission assembly; the outer ring of the first bearing is fixedly connected with the second transmission assembly, and the inner ring of the first bearing is fixedly connected with the rack;
the frame is also provided with an adjusting hole correspondingly matched with the adjusting part; the adjusting hole is communicated with the first cavity; the adjusting part penetrates through the adjusting hole and then is tightly abutted against the transmission end of the driving component.
2. The hollow rotary platform of claim 1, wherein the frame comprises: a hollow base plate; the first cavity is arranged on the hollow bottom plate; the second cavity is arranged on the hollow bottom plate; the adjusting holes are formed in the hollow bottom plate; and the inner ring of the first bearing is fixedly connected with the hollow bottom plate.
3. The hollow rotary platform of claim 2, wherein the adjustment portion comprises: the jackscrew is used for pushing the transmission end of the driving component to adjust the gap between the first transmission component and the second transmission component; the jackscrew passes through the adjusting hole and then abuts against the transmission end of the driving component.
4. The hollow rotary platform of claim 2, wherein the drive assembly comprises: the mounting seat, at least one second bearing and a shaft sleeve used for connecting an output shaft of the motor are arranged on the mounting seat; the mounting seat is accommodated in the first cavity; the outer ring of the second bearing is fixed on the mounting seat, and the inner ring of the second bearing is abutted against the shaft sleeve; the transmission end of the shaft sleeve is accommodated in the first cavity and a gap is reserved; the first transmission assembly is fixed on the transmission end of the shaft sleeve.
5. The hollow rotary platform of claim 4, wherein the first transmission assembly comprises: a first gear; the first gear is fixed on the transmission end of the shaft sleeve and is positioned at the bottom of the first cavity; the first gear is in meshed connection with the second transmission assembly.
6. The hollow rotary platform of claim 5, wherein the second transmission assembly comprises: a second gear; the second gear is in meshed connection with the first gear; the second gear is fixedly connected with the outer ring of the first bearing, and the second gear is accommodated in the second cavity.
7. The hollow rotary platform of claim 6, wherein the first bearing is a cross roller bearing.
8. The hollow rotary platform of claim 6, wherein the second bearing is a ball bearing.
9. A hollow rotary platform according to claim 6, wherein the first and second gears are helical gears.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121602380.8U CN215110319U (en) | 2021-07-14 | 2021-07-14 | Hollow rotating platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121602380.8U CN215110319U (en) | 2021-07-14 | 2021-07-14 | Hollow rotating platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215110319U true CN215110319U (en) | 2021-12-10 |
Family
ID=79320937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121602380.8U Active CN215110319U (en) | 2021-07-14 | 2021-07-14 | Hollow rotating platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215110319U (en) |
-
2021
- 2021-07-14 CN CN202121602380.8U patent/CN215110319U/en active Active
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