CN116972130A - Driving device and driving method for azimuth hand wheel of rotary platform - Google Patents

Driving device and driving method for azimuth hand wheel of rotary platform Download PDF

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Publication number
CN116972130A
CN116972130A CN202310909403.7A CN202310909403A CN116972130A CN 116972130 A CN116972130 A CN 116972130A CN 202310909403 A CN202310909403 A CN 202310909403A CN 116972130 A CN116972130 A CN 116972130A
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CN
China
Prior art keywords
hand wheel
rotary platform
movable disc
driving device
azimuth
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Pending
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CN202310909403.7A
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Chinese (zh)
Inventor
唐元玉
王茹洁
何小婷
陆一帆
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Hengyang North Photoelectricity Information Technology Co ltd
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Hengyang North Photoelectricity Information Technology Co ltd
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Application filed by Hengyang North Photoelectricity Information Technology Co ltd filed Critical Hengyang North Photoelectricity Information Technology Co ltd
Priority to CN202310909403.7A priority Critical patent/CN116972130A/en
Publication of CN116972130A publication Critical patent/CN116972130A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H35/00—Gearings or mechanisms with other special functional features
    • F16H35/18—Turning devices for rotatable members, e.g. shafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D71/00—Mechanisms for bringing members to rest in a predetermined position

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Toys (AREA)

Abstract

The invention relates to a driving device and a driving method for a rotary platform azimuth hand wheel, belongs to the technical field of rotary platform driving devices, and aims to solve the problem that an existing rotary platform manual driving device does not have a position locking function. The driving device of the present invention includes: the hand wheel comprises a fixed disc, a movable disc, a hand wheel nut, a hand wheel main shaft and a clamping structure; the hand wheel nut is sleeved outside the hand wheel spindle and can relatively displace; the movable disc is connected with the hand wheel spindle in a sliding manner and can synchronously rotate; the hand wheel nut is rotationally connected with the movable disc and can push the movable disc to displace; the movable disc is locked or unlocked with the fixed disc through the clamping and separating of the clamping structure; according to the invention, the input shaft of the rotary platform is driven to rotate by the hand wheel spindle, and the movable disc and the fixed disc are locked by the clamping structure, so that the adjusted rotary platform is indirectly locked.

Description

Driving device and driving method for azimuth hand wheel of rotary platform
Technical Field
The invention relates to the technical field of rotary platform driving devices, in particular to a rotary platform azimuth hand wheel driving device.
Background
When the rotary platform is launched, the vertical recoil and the horizontal recoil are generated by the pressure of gunpowder gas, the recoil is not coincident with the Z axis of the rotary center by layout and stress analysis, a component force parallel to the x axis is generated, a certain rotary moment is generated during launching, and if a motor of the rotary platform is in fault, the rotary platform is rotated accidentally by the rotary moment generated during launching, so that the target is separated from a photoelectric tracking view field, and the target is lost.
In this case, a manual driving device is required to replace a fault motor to drive the rotary platform to rotate in azimuth; after aiming at the target, the device enters a locking state, so that the azimuth position of the rotary platform is locked, and the transmitting condition of the rotary platform is achieved.
The traditional manual driving device has only a driving function, does not have a position locking function, can only adjust a rotating platform which rotates after being impacted by recoil to return to an initial position, but does not have a locking function, and is not beneficial to maintaining the accuracy of target aiming during launching.
Therefore, a new driving device is needed to provide a new driving device for adjusting the rotating platform after being launched, and the driving device has two functions of driving adjustment and locking positioning.
Disclosure of Invention
In view of the above analysis, the present invention aims to provide a driving device and a driving method for a azimuth hand wheel of a rotary platform, which are used for solving the problem that the existing manual driving device for the rotary platform does not have a position locking function.
The aim of the invention is mainly realized by the following technical scheme:
a rotary platform azimuth hand wheel drive device, comprising: the hand wheel comprises a fixed disc, a movable disc, a hand wheel nut, a hand wheel main shaft and a clamping structure; the hand wheel nut is sleeved outside the hand wheel spindle and can relatively displace; the movable disc is connected with the hand wheel spindle in a sliding manner and can synchronously rotate; the hand wheel nut is rotationally connected with the movable disc and can push the movable disc to displace; the movable disc is locked or unlocked with the fixed disc through the clamping and separating of the clamping structure; the hand wheel spindle is used for driving the input shaft of the rotary platform to rotate.
The clamping structure comprises a first gear ring and a second gear ring; the fixed disc is provided with a first gear ring towards one end of the movable disc, and a second gear ring is arranged towards one end of the movable disc; and when the first gear ring and the second gear ring are meshed, the relative rotation of the fixed disc and the movable disc can be limited.
Further, the end part of the hand wheel spindle is fixedly connected with a hand wheel crank, the hand wheel crank is perpendicular to the hand wheel spindle, and the end part of the hand wheel crank is fixedly connected with a handle.
Further, a thread section is arranged on the outer side of the hand wheel spindle; the hand wheel nut is screwed on the threaded section of the hand wheel spindle through threads.
Further, the movable disc is in sliding connection with the hand wheel spindle through a limiting structure;
the limiting structure comprises a U-shaped groove arranged on the outer surface of the hand wheel spindle and a first positioning pin fixedly arranged on the movable disc; the end of the first locating pin is clamped into the U-shaped groove.
Further, a threaded hole is formed in the side face of the movable disc; the axis of the threaded hole is perpendicular to the axis of the movable disc; the first locating pin is screwed into the threaded hole on the side face of the movable disc through threads.
Further, the width of the U-shaped groove is equal to the diameter of the first locating pin; the length of the U-shaped groove is larger than the diameter of the first locating pin.
Further, an anti-drop shaft is sleeved in the hand wheel spindle; the anti-drop shaft can be connected with an input shaft of the rotary platform.
Further, an annular clamping groove is formed in the movable disc, and a second positioning pin is arranged on the hand wheel nut; and the part of the second locating pin protruding out of the inner surface of the hand wheel nut is clamped into the annular clamping groove, so that the hand wheel nut and the movable disc are rotationally connected.
Further, the device also comprises an azimuth pointer; the azimuth pointer is fixedly arranged on the hand wheel crank and is parallel to the hand wheel spindle.
The driving method of the rotary platform adopts a rotary platform azimuth hand wheel driving device to drive the rotary platform; the driving method comprises the following steps:
step S1: installing the rotary platform azimuth hand wheel driving device on the rotary platform;
step S2: unlocking the disc and the movable disc; the hand wheel spindle is rotated to drive the input shaft of the rotary platform to rotate, and the angle of the rotary platform is adjusted;
step S3: after the adjustment is finished, the fixed disc and the movable disc are locked, and the azimuth rotation of the rotary platform is limited by locking.
The technical scheme of the invention can at least realize one of the following effects:
the azimuth hand wheel driving device for the revolving platform is mainly applied to manual driving azimuth rotation when a motor of a follow-up platform fails, aims at a target and keeps the position locked.
According to the driving device for the azimuth hand wheel of the rotary platform, when the motor of the rotary platform fails, the handle of the hand wheel is rotated to manually drive the rotary platform to rotate in azimuth, and after the hand wheel is driven in place, the hand wheel can enter a locking state, so that the rotary platform can rotate in azimuth and be locked.
The rotary platform azimuth hand wheel driving device has the advantages of quick locking, simplicity in operation, time and labor saving, simplicity in structure, low processing cost and the like.
In the invention, the technical schemes can be mutually combined to realize more preferable combination schemes. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, like reference numerals being used to refer to like parts throughout the several views.
FIG. 1 is a schematic diagram of a rotary platform azimuth hand wheel driving device of the present invention;
FIG. 2 is an exploded view of the rotary platform azimuth hand wheel drive of the present invention;
FIG. 3 is a cross-sectional view of the rotary platform azimuth hand wheel drive of the present invention in a locked condition;
FIG. 4 is a cross-sectional view of the drive state of the rotary table azimuth hand wheel drive of the present invention;
fig. 5 is a cross-sectional view of the rotary table azimuth hand wheel drive of fig. 4 taken in the A-A direction.
Reference numerals:
1-fixing a disc; 2-a movable disc; 3-a hand wheel nut; 4-a hand wheel spindle; 5-an anti-drop shaft; 6-azimuth pointer; 7-a hand wheel crank; 8-a handle; 9-a first locating pin; 10-a second locating pin;
101-a first gear ring; 201-a second ring gear; 202-an annular clamping groove;
401-thread segments; 402-convex ring; 403-U-shaped groove.
Detailed Description
The following detailed description of preferred embodiments of the invention is made in connection with the accompanying drawings, which form a part hereof, and together with the description of the embodiments of the invention, are used to explain the principles of the invention and are not intended to limit the scope of the invention.
Example 1
In one embodiment of the present invention, a driving device for a azimuth hand wheel of a revolving platform is disclosed, as shown in fig. 1 and 2, comprising: the hand wheel comprises a fixed disc 1, a movable disc 2, a hand wheel nut 3, a hand wheel main shaft 4 and a clamping structure; the hand wheel nut 3 is sleeved outside the hand wheel spindle 4 and can relatively displace; the movable disc 2 is in sliding connection with the hand wheel spindle 4 through a limiting structure and can synchronously rotate; the hand wheel nut 3 is rotationally connected with the movable disc 2 and can push the movable disc 2 to displace; the movable disc 2 is locked or unlocked with the fixed disc 1 through the clamping and separating of the clamping structure; the hand wheel spindle 4 is used for driving an input shaft of the rotary platform to rotate.
When the rotary platform is used, the fixed disc 1 is fixedly connected with the main body structure of the rotary platform to serve as a fixing component, the hand wheel main shaft 4 is abutted to the input shaft of the rotary platform, the azimuth angle of the rotary platform can be adjusted by rotating the hand wheel main shaft 4, and when the hand wheel main shaft 4 rotates, the movable disc 2 also synchronously rotates.
When the movable disc 2 is pushed by the hand wheel nut 3 to move away from the fixed disc 1, the clamping structure is separated, the movable disc 2 and the fixed disc 1 are unlocked, the movable disc 2 and the fixed disc 1 can rotate relatively, and then the hand wheel main shaft 4 and the input shaft of the rotary platform can also rotate, so that the rotation angle can be adjusted. When the movable disc 2 is pushed by the hand wheel nut 3 to displace towards the direction close to the fixed disc 1, the clamping structure is gradually clamped, the movable disc 2 and the fixed disc 1 are locked through the clamping structure and cannot rotate relatively, and further the hand wheel main shaft 4 and the input shaft of the rotary platform cannot rotate, so that the rotary platform can be locked.
According to the azimuth hand wheel driving device for the rotary platform, the movable disc 2 and the hand wheel main shaft 4 synchronously rotate, and the movable disc 2 and the fixed disc 1 are locked through the clamping structure so that the movable disc 2 and the fixed disc 1 cannot rotate relatively, so that the input shaft of the rotary platform of the hand wheel main shaft 4 can be reversely locked, and the rotary platform is locked and cannot perform azimuth rotary motion.
Specifically, as shown in fig. 2 and 3, a thread section 401 is provided in the middle of the hand wheel spindle 4; the hand wheel nut 3 is screwed onto the threaded section 401 of the hand wheel spindle 4 by means of a thread. Since the hand wheel spindle 4 and the hand wheel nut 3 are screwed by threads, the hand wheel nut 3 is displaced relative to the axial direction of the hand wheel spindle 4 when the hand wheel nut 3 is rotated.
Further, a convex ring 402 is further disposed on the hand wheel spindle 4, and the convex ring 402 is used for limiting the displacement travel of the hand wheel nut 3 relative to the hand wheel spindle 4. Specifically, when the hand wheel nut 3 moves away from the fixed disc 1 until contacting with the convex ring 402, it can be determined that the movable disc 2 is separated from the fixed disc 1 and the locking structure is unlocked.
In one embodiment of the present invention, as shown in fig. 2 and 3, the limiting structure includes a U-shaped groove 403 disposed on the outer surface of the hand wheel spindle 4 and a first positioning pin 9 fixedly disposed on the movable disc 2; the end of the first positioning pin 9 is snapped into the U-shaped groove 403.
Specifically, a first threaded hole is formed in the side face of the movable disc 2; the axis of the first threaded hole is perpendicular to the axis of the movable disc 2; the first locating pin 9 is screwed into a first threaded hole on the side surface of the movable disc 2 through threads.
Specifically, as shown in fig. 2, the extending direction of the U-shaped groove 403 is parallel to the axial direction of the hand wheel spindle 4. The width of the U-shaped groove 403 is equal to the diameter of the first positioning pin 9; the length of the U-shaped groove 403 is greater than the diameter of the first positioning pin 9.
In practice, the first positioning pin 9 is fixedly connected to the movable disk 2, the first positioning pin 9 is slidably mounted in the U-shaped groove 403, and the movable disk 2 is also slidable in the axial direction of the movable disk with respect to the hand wheel spindle 4, but the first positioning pin 9 is limited in that the U-shaped groove 403 is not rotatable with respect to the hand wheel spindle 4, and therefore, the movable disk 2 is not rotatable with respect to the hand wheel spindle 4, and when the movable disk 2 is locked with the fixed disk 1, the hand wheel spindle 4 is also locked.
In a specific embodiment of the present invention, as shown in fig. 2, an annular clamping groove 202 is provided on the movable disc 2, and a second positioning pin 10 is provided on the hand wheel nut 3; the part of the second positioning pin 10 protruding out of the inner surface of the hand wheel nut 3 is clamped into the annular clamping groove 202, and the hand wheel nut 3 and the movable disc 2 are rotationally connected.
Specifically, the diameter of the second positioning pin 10 is equal to the width of the annular clamping groove 202.
Specifically, the side surface of the hand wheel nut 3 is provided with a positioning mounting hole in which the second positioning pin 10 is screwed by threads.
Preferably, a plurality of second positioning pins 10 are circumferentially arranged on the hand wheel nut 3, and each of the plurality of second positioning pins 10 can be clamped into the annular clamping groove 202.
When the hand wheel nut 3 is rotated to displace relative to the hand wheel spindle 4, the second positioning pin 10 slides in the annular clamping groove 202, and simultaneously pushes the movable disc 2 to displace synchronously. According to the invention, the second positioning pin 10 is clamped in the annular clamping groove 202, so that the rotating connection of the movable disc 2 and the hand wheel nut 3 is realized, the movable disc 2 and the hand wheel nut 3 can rotate relatively when rotating, and the movable disc 2 can synchronously displace along with the hand wheel nut 3.
In one embodiment of the present invention, the engagement structure is a first gear ring 101 and a second gear ring 201; a first gear ring 101 is arranged at one end of the fixed disc 1 facing the movable disc 2, and a second gear ring 201 is arranged at one end of the movable disc 2 facing the fixed disc 1; the first ring gear 101 and the second ring gear 201 can restrict relative rotation of the fixed disk 1 and the movable disk 2 when engaged.
Specifically, the first ring gear 101 is composed of a plurality of first teeth that enclose a circular ring shape; the second gear ring 201 is composed of a plurality of second teeth which are enclosed into a circular ring shape; as shown in fig. 3, when the first ring gear 101 and the second ring gear 201 are engaged, the first teeth and the second teeth are alternately distributed. According to the invention, through the mutual engagement of the first gear ring 101 and the second gear ring 201, the locking of the fixed disc 1 to the movable disc 2 is realized, the rotation of the movable disc 2 is limited, and further, the rotation of the hand wheel main shaft 4 can be limited, and finally, the reverse locking of the rotary platform is realized.
In a specific embodiment of the present invention, the first teeth and the second teeth are both triangular structures, and when the first gear ring 101 and the second gear ring 201 are completely engaged, the sides of the first teeth and the second teeth are attached, and the first gear ring 101 and the second gear ring 201 are spliced into a whole. Preferably, the first tooth and the second tooth have the same shape and size, and the included angle between the two side surfaces of the first tooth and the second tooth is 60 degrees.
In consideration of the fact that the aiming angle of the rotary table is unknown when the rotary table is angularly adjusted by the hand wheel spindle 4, it is required that the first ring gear 101 and the second ring gear 201 of the engagement structure can be engaged at any angle. That is, when the movable plate 2 rotates by an arbitrary angle relative to the fixed plate 1, the engaging structure can function to lock the movable plate 2. The invention adopts a triangle tooth structure, designs the number and the size of the teeth according to the calibration precision of the rotary platform, and can realize the effective calibration of the rotary direction of the rotary platform and the effective engagement of the gear ring.
According to the invention, the effective engagement of the gear ring is ensured on the premise of conforming to the adjustment precision of the rotary platform by designing the tooth number of the gear ring, so that the reliable locking of the movable disc 2 is ensured. Specifically, in the present invention, the number of teeth of the fixed disk 1 and the movable disk 2 is calculated by:
the number of teeth of the fixed disk 1 and the movable disk 2 is related to the tracking amplitude of the photoelectric tracking view field. The device is equivalent to a motor of a rotary platform, is used as an input end of a speed reducer, and a photoelectric tracking view field is used as an output end of the speed reducer. The relation between the rotation angle of the input end and the rotation angle of the output end, namely the corresponding relation between the rotation angle of the hand wheel driving device and the rotation angle of the photoelectric tracking visual field, can be obtained according to the transmission ratio of the speed reducer, and the formula is as follows:
from the formulae (1.1), (1.2):
wherein i is the transmission ratio of the speed reducer, n 1 、n 2 The rotation speeds of the input shaft and the output shaft end of the speed reducer are respectively delta theta 1 、Δθ 2 The angle change value of the hand wheel driving device and the angle change value of the photoelectric tracking view field are respectively.
Illustratively, the photoelectric tracking field angle of the rotary platform is 4 °, and the minimum tracking accuracy of the field angle is about one third of the photoelectric field angle, 4 °/3≡1.3 °.
Illustratively, when the transmission ratio i=8 of the rotary platform reducer, the minimum precision of the locking position of the device should be: Δθ 1 =1.3° ×8=10.4°, i.e., the number of teeth of the fixed disk and the movable disk is: z.gtoreq.360 °/10.4 ° =34.6°, i.e. Z.gtoreq.35.
In a specific embodiment of the present invention, as shown in fig. 1 and 2, the end of the hand wheel spindle 4 is fixedly connected with a hand wheel crank 7, the hand wheel crank 7 is perpendicular to the hand wheel spindle 4, and the end of the hand wheel crank 7 is fixedly connected with a handle 8.
In the invention, the hand wheel crank 7 is perpendicular to the hand wheel spindle 4 and is used as an extension arm of the hand wheel spindle 4 to form a lever structure, when the hand wheel spindle 4 is rotated, the longer the length of the hand wheel crank 7 is, the smaller the torsion force required for rotating the hand wheel spindle 4 is, so that the force required for operating the hand wheel is effectively reduced, and the operation is more labor-saving.
In a specific embodiment of the present invention, as shown in fig. 3, 4 and 5, an anti-falling shaft 5 is sleeved inside the hand wheel spindle 4; the anti-drop shaft 5 can be connected with an input shaft of the rotary platform.
Specifically, the inner hole of the hand wheel spindle 4 and the input shaft of the rotary platform synchronously rotate through shape fit; preferably, the inner hole of the hand wheel spindle 4 is rectangular, the outer surface of the input shaft is rectangular, and the input shaft can be driven to synchronously rotate when the hand wheel spindle 4 rotates.
Specifically, the end of the input shaft is provided with a second threaded hole, the end of the anti-drop shaft 5 is provided with a stud, the anti-drop shaft 5 is rotated to be screwed into the second threaded hole of the input shaft, the fixed connection of the anti-drop shaft 5 and the input shaft is realized, and the hand wheel spindle 4 is prevented from being disconnected with the input shaft.
In one embodiment of the invention, the invention further comprises an azimuth pointer 6; the azimuth pointer 6 is fixedly arranged on the hand wheel crank 7 and is parallel to the hand wheel spindle 4.
According to the invention, by arranging the azimuth pointer 6, the rotating angle of the hand wheel spindle 4 can be indirectly judged according to the pointing direction of the azimuth pointer 6, and the accuracy of the input angle of the hand wheel spindle 4 to the input shaft is further ensured.
According to the rotary platform azimuth hand wheel driving device, the first locating pin 9 is connected with the hand wheel spindle 4 through the first locating pin 2, and the first locating pin 9 slides in the U-shaped groove 403 of the hand wheel spindle 4, so that circumferential moment transmission and axial sliding are realized; the second locating pins 10 are connected with the movable disc 2 and the hand wheel nuts 3, are installed in annular clamping grooves 202 of the movable disc 2, are circumferentially uniformly distributed with 3 parts, and can drive the movable disc 2 to linearly move when the hand wheel nuts 3 rotate, so that the switching of the engagement or disengagement states between the movable disc 2 and the fixed disc 1 is realized.
The movable plate 2 and the fixed plate 1 are connected by adopting a tooth-shaped structure. When the motor of the rotary platform fails, the manual driving device is abutted against the manual input shaft of the rotary platform to tighten the anti-falling shaft 5, and the main body of the hand wheel nut 3 is rotated to separate the main bodies of the fixed disc 1 and the movable disc 2 from each other, so that the rotary platform is in a driving state; as shown in fig. 4; the handle 8 is rotated to drive the rotary platform to rotate in azimuth; after driving in place, reversely rotating the hand wheel nut 3 to push the movable disc 2 to linearly move so as to enable the movable disc 2 to be jointed with the fixed disc 1, and fixing the input shaft of the rotary platform through the resistance moment generated between the joint surfaces of the movable disc 2 and the fixed disc 1 so that the input shaft cannot rotate, thereby realizing the azimuth rotation locking of the rotary platform; as shown in fig. 3.
Example 2
An embodiment of the present invention is modified on the basis of embodiment 1; specifically, this embodiment provides an alternative to the engagement structure in embodiment 1.
In this embodiment, the engaging structure includes: a first friction plate and a second friction plate; the first friction plate is fixedly arranged on the fixed disc 1, and the second friction plate is fixedly arranged on the movable disc 2.
Preferably, the first friction plate and the second friction plate are identical in structural shape.
Preferably, the first friction plate and the second friction plate are both flat annular structures.
Further, the first friction plate and the second friction plate are rough in surface.
In practice, when the movable disk 2 moves towards the fixed disk 1 under the pushing of the hand wheel nut 3, the second friction plate gradually contacts with the first friction plate and presses each other. When the first friction plate and the second friction plate are in extrusion contact, the relative rotation of the first friction plate and the second friction plate needs to overcome the friction force of the extrusion contact of the first friction plate and the second friction plate, and the larger the extrusion force of the first friction plate and the second friction plate is, the larger the friction force of the relative rotation of the first friction plate and the second friction plate needs to be overcome; the clamping of the clamping structure is realized through the friction resistance of the two.
In this embodiment, after the movable disc 2 and the fixed disc 1 are contacted, the relative rotation of the movable disc 2 and the fixed disc 1 is limited by the friction resistance between them, so as to realize the azimuth rotation locking of the rotary platform. The clamping mechanism of the embodiment has the advantages that after the movable disc 2 rotates by any angle along with the hand wheel spindle 4, the movable disc 2 and the fixed disc 1 can be effectively locked, the locking precision is high, and the locking at any position can be realized.
Example 3
In a specific embodiment of the present invention, a method for driving a rotary platform is provided, where the rotary platform azimuth hand wheel driving device of embodiment 1 or embodiment 2 is used to drive the rotary platform.
The driving method includes the steps of:
step S1: installing the rotary platform azimuth hand wheel driving device on the rotary platform;
step S2: unlocking the disc 1 and the movable disc 2; the hand wheel spindle 4 is rotated to drive the input shaft of the rotary platform to rotate, so that the angle of the rotary platform is adjusted;
step S3: after the adjustment is finished, the fixed disc 1 and the movable disc 2 are locked, and the azimuth rotation of the rotary platform is limited by locking.
In the step S1, the fixed disc 1 is fixedly connected with a main body structure of the rotary platform; the hand wheel spindle 4 is connected with a manual input shaft of the rotary platform, and the anti-falling shaft 5 is screwed into threads on the input shaft of the rotary platform so as to prevent the device from loosening.
In the step S2, the manner of unlocking the movable disc 2 and the fixed disc 1 is as follows:
step S201: the hand wheel nut 3 is turned to move in a direction away from the stator 1.
Step S202: when the hand wheel nut 3 is displaced, the movable disc 2 is pulled to synchronously displace through the second positioning pin 10; simultaneously, the second positioning pin 10 slides along the circumferential direction in the annular clamping groove 202 of the movable disc 2;
step S203: the movable disc 2 is far away from the fixed disc 1, the second gear ring 201 is separated from the first gear ring 101, the movable disc 2 is disconnected from the fixed disc 1, and the movable disc 2 is in an unlocking state.
In the step S2, the manner of performing the angle adjustment on the rotary platform is as follows: the handle 8 is rotated, and the hand wheel main shaft 4 is driven to rotate through the handle 8 and the hand wheel crank 7; the hand wheel spindle 4 drives the manual input shaft of the rotary platform to rotate, and the azimuth of the rotary platform is adjusted to rotate to the target position.
In the step S3, after the adjustment is completed, the locking method for the rotary platform is as follows:
step S301: the hand wheel nut 3 is reversely rotated to rotate relative to the hand wheel main shaft 4 and simultaneously displace towards the direction approaching the fixed disc 1;
step S302: when the hand wheel nut 3 is displaced, the movable disc 2 is pushed to linearly move towards the direction close to the fixed disc 1 by the second positioning pin 10; while the first positioning pin 9 slides in the U-shaped groove 403 of the hand wheel spindle 4;
step S303: the movable disc 2 gradually approaches the fixed disc 1 until the fixed disc 1 is completely meshed with the first gear ring 101 and the second gear ring 201 of the movable disc 2, or the fixed disc 1 is in extrusion contact with the first friction plate and the second friction plate of the movable disc 2; the movable disc 2 cannot rotate relative to the fixed disc 1, the hand wheel spindle 4 is limited by the first positioning pin 9 fixedly connected with the movable disc 2 and cannot rotate, and further, the manual input shaft of the rotary platform is locked, so that the azimuth position of the rotary platform is locked.
Further, after the rotary platform works, the hand wheel nut 3 is rotated to be far away from the fixed disc 1, the movable disc 2 is positioned at the right limit position, and the manual driving device is rotated, so that the rotary platform returns to the zero position, and the rotary platform works.
When the electric drive of the rotary platform is restored, the anti-falling shaft 5 is unscrewed from the manual input shaft of the rotary platform, and the device is detached from the rotary platform and put into a tool box.
Compared with the prior art, the technical scheme provided by the embodiment has at least one of the following beneficial effects:
1. the rotary platform azimuth hand wheel driving device not only has a driving function, but also has a position locking function, can prevent the regulated rotary platform from shifting again, and ensures the accuracy of aiming azimuth.
2. The rotary platform azimuth hand wheel driving device is simple in structure, convenient to process and manufacture, easy to guarantee processing quality, high in reliability and simple to operate.
The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention.

Claims (10)

1. A rotary platform azimuth hand wheel drive device, comprising: the device comprises a fixed disc (1), a movable disc (2), a hand wheel nut (3), a hand wheel main shaft (4) and a clamping structure; the hand wheel nut (3) is sleeved outside the hand wheel spindle (4) and can relatively displace; the movable disc (2) is in sliding connection with the hand wheel spindle (4) and can synchronously rotate; the hand wheel nut (3) is rotationally connected with the movable disc (2) and can push the movable disc (2) to displace; the movable disc (2) is locked or unlocked with the fixed disc (1) through the clamping and separating of the clamping structure; the hand wheel spindle (4) is used for driving an input shaft of the rotary platform to rotate.
2. The rotary platform azimuth hand wheel driving device according to claim 1, further comprising a hand wheel crank (7) and a handle (8).
3. The rotary platform azimuth hand wheel driving device according to claim 2, wherein the end part of the hand wheel spindle (4) is fixedly connected with a hand wheel crank (7), the hand wheel crank (7) is perpendicular to the hand wheel spindle (4), and the end part of the hand wheel crank (7) is fixedly connected with a handle (8).
4. A rotary platform azimuth hand wheel driving device according to any one of claims 1-3, characterized in that the outer side of the hand wheel spindle (4) is provided with a thread section (401).
5. The rotary platform azimuth hand wheel driving device according to claim 4, wherein the hand wheel nut (3) is screwed on a threaded section (401) of the hand wheel spindle (4).
6. The rotary platform azimuth hand wheel driving device according to claim 5, wherein the movable disc (2) is slidably connected with the hand wheel spindle (4) through a limiting structure.
7. The rotary platform azimuth hand wheel driving device according to claim 6, wherein an anti-drop shaft (5) is sleeved inside the hand wheel main shaft (4); the anti-falling shaft (5) can be connected with an input shaft of the rotary platform.
8. The rotary platform azimuth hand wheel driving device according to claim 7, wherein the movable disc (2) is provided with an annular clamping groove (202), and the hand wheel nut (3) is provided with a second positioning pin (10); the second locating pin (10) protrudes out of the inner surface of the hand wheel nut (3) and is clamped into the annular clamping groove (202), and the hand wheel nut (3) is rotationally connected with the movable disc (2).
9. The rotary platform azimuth hand wheel driving device according to claim 8, further comprising an azimuth pointer (6); the azimuth pointer (6) is fixedly arranged on the hand wheel crank (7) and is parallel to the hand wheel main shaft (4).
10. A method of driving a rotary platform, characterized in that the rotary platform is driven by the rotary platform azimuth hand wheel driving device according to any one of claims 1 to 9.
CN202310909403.7A 2023-07-24 2023-07-24 Driving device and driving method for azimuth hand wheel of rotary platform Pending CN116972130A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310909403.7A CN116972130A (en) 2023-07-24 2023-07-24 Driving device and driving method for azimuth hand wheel of rotary platform

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310909403.7A CN116972130A (en) 2023-07-24 2023-07-24 Driving device and driving method for azimuth hand wheel of rotary platform

Publications (1)

Publication Number Publication Date
CN116972130A true CN116972130A (en) 2023-10-31

Family

ID=88472445

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310909403.7A Pending CN116972130A (en) 2023-07-24 2023-07-24 Driving device and driving method for azimuth hand wheel of rotary platform

Country Status (1)

Country Link
CN (1) CN116972130A (en)

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