CN110270966B - Power-down self-locking one-dimensional turntable - Google Patents
Power-down self-locking one-dimensional turntable Download PDFInfo
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- CN110270966B CN110270966B CN201910429853.XA CN201910429853A CN110270966B CN 110270966 B CN110270966 B CN 110270966B CN 201910429853 A CN201910429853 A CN 201910429853A CN 110270966 B CN110270966 B CN 110270966B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
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Abstract
The invention discloses a power-down self-locking one-dimensional rotary table, which relates to the technical field of rotary tables for measurement and comprises a rotary table, a base, a motor, a speed reducer, a pinion, a gearwheel, a first sleeve, a first bearing, a measuring rod and an encoder, wherein the top end of the base is provided with a first through hole and a second through hole, and the bottom end of the first sleeve is fixedly connected with the top end of the base; the inner ring of the first bearing is fixedly connected with the outer wall of the first sleeve, and the large gear is fixedly sleeved on the outer ring of the first bearing; the motor is connected with the speed reducer, an output shaft of the speed reducer penetrates through the second through hole and is fixedly connected with the small gear, and the small gear is meshed with the large gear; the bottom end of the rotary table is fixedly connected with the top end of the large gear, the measuring rod penetrates through the first through hole, the top end of the measuring rod is fixedly connected with the bottom end of the rotary table, the bottom end of the measuring rod is connected with a rotor of the encoder, and a stator of the encoder is fixedly connected with the base; the invention effectively ensures the stability of the rotation of the turntable, can be self-locked when the motor is powered off, and is convenient to disassemble and maintain.
Description
Technical Field
The invention relates to the technical field of a rotary table for measurement, in particular to a one-dimensional rotary table capable of realizing power failure self-locking.
Background
In the electromagnetic scattering measurement, an experimenter needs to use a one-dimensional rotary table to bear a measured target, generally, a conventional one-dimensional rotary table for indoor measurement needs the table top of the rotary table to rotate 360 degrees continuously, and the conventional one-dimensional rotary table at present has the problems of unstable operation, inconvenience in maintenance and incapability of realizing self-locking during power failure.
Disclosure of Invention
The invention aims to provide a power-down self-locking one-dimensional rotary table, which can effectively ensure the running stability of the rotary table and can realize the self-locking of a motor in the power-down process through a band-type brake.
The embodiment of the invention is realized by the following steps:
the power-down self-locking one-dimensional turntable comprises a turntable, a base, a motor, a speed reducer, a pinion, a gearwheel, a first sleeve, a first bearing, a measuring rod and an encoder, wherein the base is of a hollow structure, a first cavity is formed in the base, a first through hole and a second through hole are formed in the top end of the base, the bottom end of the first sleeve is fixedly connected with the top end of the base, and the axis of the first through hole is superposed with the axis of the first sleeve;
the bearing is sleeved on the first sleeve, an inner ring of the first bearing is fixedly connected with an outer wall of the first sleeve, the large gear is sleeved on an outer ring of the first bearing, and the large gear is fixedly connected with the outer ring of the first bearing;
the motor and the speed reducer are arranged in the first cavity, an output shaft of the motor is fixedly connected with an input end of the speed reducer, an output shaft of the speed reducer penetrates through the second through hole and is fixedly connected with the small gear, and the small gear is meshed with the large gear;
the bottom end of the rotary table is fixedly connected with the top end of the large gear, the measuring rod penetrates through the first through hole, the top end of the measuring rod is fixedly connected with the bottom end of the rotary table, the bottom end of the measuring rod is connected with the rotor of the encoder, and the stator of the encoder is fixedly connected with the base.
Further, the revolving stage still includes the band-type brake stopper that is used for braking the motor output shaft, the band-type brake stopper is the brake that loses the electricity for when the motor loses the electricity, the output shaft of brake motor to make the motor stall.
Further, the turntable further comprises a microprocessor and a driver, the microprocessor is respectively connected with the driver and the encoder, the driver is connected with the motor, and the microprocessor is used for sending a control instruction to the driver; the driver is used for driving the motor to rotate according to a control command sent by the microprocessor; the encoder is used for feeding back the angle information of the turntable to the microprocessor.
Further, the turntable further comprises a second sleeve and a slip ring adapter plate, the top end of the second sleeve is fixedly connected with the bottom end of the turntable through a bolt, and the bottom end of the second sleeve is fixedly connected with the top end of the large gear through a bolt;
an annular connecting piece is arranged on the inner wall of one side, close to the bottom end of the rotary table, of the second sleeve, and the slip ring adapter plate is fixedly connected with the annular connecting piece through bolts;
and a third through hole is formed in the slip ring adapter plate, and the axis of the third through hole is superposed with the axis of the first through hole.
Furthermore, the turntable further comprises a second bearing, an inner ring of the second bearing is fixedly connected with the outer wall of the first sleeve, and an outer ring of the second bearing is fixedly connected with the inner wall of the second sleeve.
Further, the turntable is of a hollow structure, and a second cavity is arranged in the turntable.
Furthermore, the top end of the measuring rod is fixedly connected with a measuring rod connecting disc, the top end of the measuring rod penetrates through the third through hole, and the measuring rod connecting disc is fixedly connected with the slip ring adapter plate through a bolt.
Furthermore, the turntable further comprises a first annular baffle and a first annular cover plate, the first annular baffle is fixedly connected with the top end of the base, the first annular baffle is perpendicular to the top end of the base, the inner wall of the first annular cover plate is fixedly connected with the outer wall of the second sleeve, and the first annular cover plate and the first annular baffle enclose to form a third cavity.
Furthermore, a first sliding block is fixedly connected to the top end of the first annular baffle, a first sliding groove matched with the first sliding block is formed in the bottom end of the first annular cover plate, and the first sliding block is connected with the first sliding groove in a sliding mode.
Further, the maximum rotating speed of the rotating disc is 180 degrees/second.
The invention has the beneficial effects that:
the invention can effectively ensure the stability of the rotation of the turntable, and can realize self-locking of the motor when the motor is powered off through the band-type brake, so that the turntable can be effectively locked during transportation and maintenance.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a cross-sectional view of a power-down self-locking one-dimensional turntable according to an embodiment of the present invention;
fig. 2 is a front view of a power-down self-locking one-dimensional turntable according to an embodiment of the present invention;
fig. 3 is a side view of a power-down self-locking one-dimensional turntable according to an embodiment of the present invention;
fig. 4 is a top view of a hidden turntable of a power-down self-locking one-dimensional turntable according to an embodiment of the present invention.
Icon: 1-a rotary table, 2-a base, 3-a pinion, 4-a bull gear, 5-a first sleeve, 6-a second sleeve, 7-a first bearing, 8-a second bearing, 9-a measuring rod, 10-an encoder, 11-a load adapter plate, 12-a slip ring adapter plate, 13-a first annular baffle and 14-a first annular cover plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
The terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
The terms "parallel", "perpendicular", etc. do not require that the components be absolutely parallel or perpendicular, but may be slightly inclined. For example, "parallel" merely means that the directions are more parallel relative to "perpendicular," and does not mean that the structures are necessarily perfectly parallel, but may be slightly tilted.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 4, a power-down self-locking one-dimensional turntable comprises a turntable 1, a base 2, a motor, a speed reducer, a pinion 3, a gearwheel 4, a first sleeve 5, a first bearing 7, a measuring rod 9 and an encoder 10, wherein the base 2 is of a hollow structure with a first cavity inside, the top end of the base 2 is provided with a first through hole and a second through hole, the diameter of the first through hole is the same as that of the first sleeve 5, the bottom end of the first sleeve 5 is fixedly connected with the top end of the base 2, and the axis of the first through hole is coincident with the axis of the first sleeve 5; the bottom end of the first sleeve 5 is also fixedly connected with a cover plate with the diameter larger than the inner diameter of the first sleeve 5 through a bolt, a fourth through hole capable of accommodating the measuring rod 9 is formed in the center of the cover plate, and the center point of the cover plate is located on the axis of the first sleeve 5; the first bearing 7 is sleeved on the first sleeve 5, an inner ring of the first bearing 7 is fixedly connected with an outer wall of the first sleeve 5, the large gear 4 is sleeved on an outer ring of the first bearing 7, and the large gear 4 is fixedly connected with the outer ring of the first bearing 7.
The motor and the speed reducer are arranged in the first cavity and are packaged in a shell, and the shell is fixedly connected with the base 2 through bolts. The output shaft of the motor is fixedly connected with the input end of the speed reducer, the output shaft of the speed reducer penetrates through the second through hole and is fixedly connected with the small gear 3, the small gear 3 is sleeved on the output shaft of the speed reducer, and the small gear 3 is meshed with the large gear 4. Wherein, the motor is the synchronous servo motor of interchange permanent magnetism, and the reduction gear is that the drive ratio is 20: 1 planetary reducer.
Measuring stick 9 passes through the fourth through-hole and runs through first through-hole, and measuring stick 9's bottom is connected with encoder 10's rotor, encoder 10's stator and apron fixed connection, and wherein, encoder 10 is for taking zero encoder 10, and the repeated positioning accuracy is high.
The turntable 1 is of a hollow structure, a second cavity is formed in the turntable 1, a load adapter plate 11 is arranged at the top end of the turntable 1 and used for bearing a load, and the turntable system can be conveniently expanded through the second cavity.
The turntable further comprises a second sleeve 6 and a slip ring adapter plate 12, the top end of the second sleeve 6 is fixedly connected with the bottom end of the turntable 1 through a bolt, the bottom end of the second sleeve 6 is fixedly connected with the top end of the large gear 4 through a bolt, and the inner wall of the second sleeve 6 is fixedly connected with the outer ring of the first bearing 7, so that the turntable 1 is fixedly connected with the large gear 4; an annular connecting piece is arranged on the inner wall of one side, close to the bottom end of the turntable 1, of the second sleeve 6, the slip ring adapter plate 12 is fixedly connected with the annular connecting piece through bolts, a third through hole is formed in the center of the slip ring adapter plate 12, and the axis of the third through hole coincides with the axis of the first through hole.
The top fixedly connected with of measuring stick 9 has a measuring stick 9 connection pad, and the third through-hole is run through on the top of measuring stick 9, and measuring stick 9 connection pad passes through bolt and sliding ring keysets 12 fixed connection for the top of measuring stick 9 and the bottom fixed connection of carousel 1, thereby when carousel 1 rotates, measuring stick 9 can rotate along with carousel 1.
The revolving stage still includes second bearing 8, and the outer wall fixed connection of the inner circle of second bearing 8 and first sleeve 5, the outer lane of second bearing 8 and the inner wall fixed connection of second sleeve 6 have effectively improved the stability of carousel 1, and wherein first bearing 7 and second bearing 8 are the angle bearing.
The turntable also comprises a first annular baffle 13 and a first annular cover plate 14, the first annular baffle 13 is fixedly connected with the top end of the base 2, the first annular baffle 13 is vertical to the top end of the base 2, the inner wall of the first annular cover plate 14 is fixedly connected with the outer wall of the second sleeve 6, the top end of the first annular baffle 13 is fixedly connected with a first sliding block, the bottom end of the first annular cover plate 14 is provided with a first sliding groove matched with the first sliding block, the first sliding block is connected with the first sliding groove in a sliding way, and the first annular cover plate 14, the first annular baffle 13 and the top end of the base 2 enclose to form a third cavity, so that the bull gear 4 and the pinion 3 work in the third cavity, and because the protection of first annular apron 14 and first annular baffle 13 for gear wheel 4 and pinion 3 are isolated with external environment, prevent that salt fog, rainwater, mould from getting into the inside internal component of corroding of third cavity, have avoided leading to the fact the influence from this to revolving stage precision and life. Meanwhile, the first annular cover plate 14 is connected with the first annular baffle 13 in a sliding manner to further support and limit the second sleeve 6, so that the rotating stability of the rotary table 1 is further ensured.
And the motor output shaft is also provided with a band-type brake used for braking the motor output shaft, and the band-type brake is a power-off brake used for braking the output shaft of the motor when the motor is powered off, so that the motor stops rotating. The revolving stage is self-locked, and the revolving stage can be locked when the revolving stage is transported, the tower is lifted and the equipment is maintained by adding the band-type brake, so that the safety of the equipment is ensured.
The turntable also comprises a microprocessor and a driver, the microprocessor is respectively connected with the driver and the encoder 10, the driver is connected with the motor, and the microprocessor is used for sending a control instruction to the driver; the driver is used for driving the motor to rotate according to a control command sent by the microprocessor, the motor drives the speed reducer to rotate, so that the speed reducer drives the turntable 1 to rotate, the highest rotating speed of the turntable 1 reaches 180 degrees/second, and the turntable 1 can stably operate at the speed of 180 degrees/second under the support of the turntable structure; the encoder 10 is used for feeding back the angle information of the turntable 1 to the microprocessor; wherein, driver and microprocessor all set up in first cavity.
Wherein, the base 2 is provided with a plurality of external interfaces which are respectively connected with the microprocessor; the external interface can be one or more of an RS485 interface module, an RS232 interface module, an RS422 interface module and an RJ45 interface module, and is used for the microprocessor to communicate with a load or other external equipment such as a control host; the external interface also comprises an external power supply interface module, and the external power supply interface module is connected with the microprocessor and the driver and is used for converting external voltage into working voltage of the microprocessor and the driver and supplying power to the microprocessor and the driver. Still be provided with at least one access hole on the 2 lateral walls of base for overhaul the component in the first cavity, can be convenient maintain, overhaul the revolving stage, and need not to dismantle the revolving stage is whole.
Still be provided with the surveyor's level on the base 2, whether the accessible surveyor's level judges the revolving stage and carries out corresponding adjustment during the use.
The working principle of the invention is as follows:
when in use, the load equipment is connected with the microprocessor through the external interface, the load equipment is communicated with the microprocessor through the RS422 interface module or the RS485 interface module, the load equipment can send a control instruction to the microprocessor so as to control the driver to drive the motor to rotate through the microprocessor, the output shaft of the motor drives the reducer to rotate, the reducer performs speed reduction and torque amplification and then outputs power to the pinion 3 so as to rotate the pinion 3, the small gear 3 is engaged with the big gear 4, so as to drive the big gear 4 to rotate, the big gear 4 drives the second cylinder body to rotate, thereby the second cylinder body drives the turntable 1 to rotate, the rotation of the turntable 1 is controlled, and simultaneously, in the working process of the turntable, the microprocessor acquires the angle data fed back by the encoder 10 in real time and sends the acquired angle data to the load equipment through the RJ45 interface. The load device can control the turntable 1 to return to zero, operate to a designated position, perform circular scanning and perform sector scanning by sending instructions to the microprocessor.
The invention can effectively ensure the stability of the rotation of the rotary table, and can realize self-locking of the motor when the motor is powered off through the band-type brake, so that the rotary table can be effectively locked during transportation and maintenance.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A power-down self-locking one-dimensional turntable comprises a turntable, a base, a motor and a speed reducer, and is characterized by further comprising a pinion, a gearwheel, a first sleeve, a first bearing, a measuring rod and an encoder, wherein the base is of a hollow structure, a first cavity is formed in the base, a first through hole and a second through hole are formed in the top end of the base, the bottom end of the first sleeve is fixedly connected with the top end of the base, and the axis of the first through hole is overlapped with the axis of the first sleeve;
the first bearing is sleeved on the first sleeve, an inner ring of the first bearing is fixedly connected with an outer wall of the first sleeve, the large gear is sleeved on an outer ring of the first bearing, and the large gear is fixedly connected with the outer ring of the first bearing;
the motor and the speed reducer are arranged in the first cavity, an output shaft of the motor is fixedly connected with an input end of the speed reducer, an output shaft of the speed reducer penetrates through the second through hole and is fixedly connected with the small gear, and the small gear is meshed with the large gear;
the bottom end of the rotary table is fixedly connected with the top end of the large gear, the measuring rod penetrates through the first through hole, the top end of the measuring rod is fixedly connected with the bottom end of the rotary table, the bottom end of the measuring rod is connected with the rotor of the encoder, and the stator of the encoder is fixedly connected with the base;
the turntable further comprises a second sleeve and a slip ring adapter plate, the top end of the second sleeve is fixedly connected with the bottom end of the turntable through a bolt, and the bottom end of the second sleeve is fixedly connected with the top end of the large gear through a bolt;
an annular connecting piece is arranged on the inner wall of one side, close to the bottom end of the rotary table, of the second sleeve, and the slip ring adapter plate is fixedly connected with the annular connecting piece through bolts;
a third through hole is formed in the slip ring adapter plate, and the axis of the third through hole is overlapped with the axis of the first through hole;
the top end of the measuring rod is fixedly connected with a measuring rod connecting disc, the top end of the measuring rod penetrates through the third through hole, and the measuring rod connecting disc is fixedly connected with the slip ring adapter plate through a bolt.
2. The one-dimensional power-down self-locking turntable according to claim 1, further comprising a brake for braking the output shaft of the motor, wherein the brake is a power-off brake for braking the output shaft of the motor when the motor is powered off, so as to stop the rotation of the motor.
3. The one-dimensional power-down self-locking turntable according to claim 1, further comprising a microprocessor and a driver, wherein the microprocessor is connected with the driver and the encoder respectively, the driver is connected with the motor, and the microprocessor is configured to send a control instruction to the driver; the driver is used for driving the motor to rotate according to a control command sent by the microprocessor; the encoder is used for feeding back the angle information of the turntable to the microprocessor.
4. The power-down self-locking one-dimensional turntable according to claim 1, further comprising a second bearing, wherein an inner ring of the second bearing is fixedly connected with an outer wall of the first sleeve, and an outer ring of the second bearing is fixedly connected with an inner wall of the second sleeve.
5. The power-down self-locking one-dimensional turntable as claimed in claim 1, wherein the turntable is a hollow structure with a second cavity therein.
6. The power-down self-locking one-dimensional turntable according to claim 1, further comprising a first annular baffle and a first annular cover plate, wherein the first annular baffle is fixedly connected with the top end of the base and perpendicular to the top end of the base, the inner wall of the first annular cover plate is fixedly connected with the outer wall of the second sleeve, and the first annular cover plate and the first annular baffle enclose to form a third cavity.
7. The power-down self-locking one-dimensional turntable according to claim 6, wherein a first sliding block is fixedly connected to the top end of the first annular baffle, a first sliding groove matched with the first sliding block is formed in the bottom end of the first annular cover plate, and the first sliding block is slidably connected with the first sliding groove.
8. The power-down self-locking one-dimensional turntable according to claim 7, wherein the maximum rotation speed of the turntable is 180 degrees/second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910429853.XA CN110270966B (en) | 2019-05-22 | 2019-05-22 | Power-down self-locking one-dimensional turntable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910429853.XA CN110270966B (en) | 2019-05-22 | 2019-05-22 | Power-down self-locking one-dimensional turntable |
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| Publication Number | Publication Date |
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| CN110270966A CN110270966A (en) | 2019-09-24 |
| CN110270966B true CN110270966B (en) | 2020-09-29 |
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| CN201910429853.XA Active CN110270966B (en) | 2019-05-22 | 2019-05-22 | Power-down self-locking one-dimensional turntable |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6178608B1 (en) * | 1999-03-26 | 2001-01-30 | Bourn & Koch Machine Tool Co. | Rotary transfer machine |
| TW200821083A (en) * | 2006-10-26 | 2008-05-16 | Tsudakoma Ind Co Ltd | Angle indexing device for machine tool |
| JP2008114306A (en) * | 2006-10-31 | 2008-05-22 | Yukiwa Seiko Inc | Rotating table device |
| CN202647128U (en) * | 2012-04-11 | 2013-01-02 | 惠州华阳通用电子有限公司 | Rotary positioning platform |
| CN104503478B (en) * | 2014-12-02 | 2017-05-10 | 中国船舶重工集团公司第七一六研究所 | Separate adjustable-backlash servo turntable transmission device |
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