CN221402532U - Swash plate dynamic balance adjusting assembly and stepless adjustment cradle head - Google Patents

Abstract

The utility model relates to the technical field of camera shooting, and discloses a swash plate dynamic balance adjusting assembly and a stepless adjusting cradle head. The swash plate dynamic balance assembly comprises a stator, a rotor, a swash plate assembly and an angle adjusting mechanism, wherein the rotor is arranged in a cavity of the stator and can rotate in the stator, the swash plate assembly comprises a swash plate, a universal joint sliding seat and an elastic piece, an eccentric hole is formed in the stator, the elastic piece is arranged in the eccentric hole, the movable end of the elastic piece is connected with the universal joint sliding seat, the bottom surface of the universal joint sliding seat is in butt joint with the swash plate surface, the swash plate and the rotating end surface of the rotor form a certain included angle, the rotor rotates to drive the universal joint sliding seat to do circular motion along the surface of the swash plate, the distance between the universal joint sliding seat and the rotating end surface of the rotor is gradually reduced, the elastic piece is compressed, reverse acting force of the elastic piece is utilized, reverse moment is provided by the eccentric distance action of the elastic piece, and the dynamic balance effect in the rotor rotating process is maintained. And then apply this sloping cam plate dynamic balance adjusting part to the every single move regulation of cloud platform in, can realize the dynamic balance of cloud platform every single move regulation process to can realize balanced effect and infinitely variable, flexible operation is convenient.

Description

Swash plate dynamic balance adjusting assembly and stepless adjustment cradle head

Technical Field

The utility model relates to the technical field of camera shooting, in particular to a swash plate dynamic balance adjusting assembly and a stepless adjustable cradle head.

Background

The cradle head is a supporting device for video cameras, cameras and other photographing devices, and in the photographing process, the photographing devices need to be quickly installed and fixed.

In order to meet different shooting requirements, such as pitching shooting or rotation shooting at different angles in different horizontal directions, in the use process, the cradle head needs to be capable of achieving adjustment in various directions, but the cradle head adjusting structure of some existing video cameras is complex, operation is complex, the adjusting process is not flexible and rapid enough, and dynamic balance of the adjusting process cannot be achieved.

Disclosure of utility model

(One) solving the technical problems

Aiming at the progress of shooting and recording technologies, the utility model provides a swash plate dynamic balance adjusting assembly and a stepless adjusting cradle head. The problems that an existing camera mechanism is complex in adjusting mechanism, complex in operation and incapable of achieving dynamic balance are solved.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a dynamic balance adjusting part, sloping cam plate dynamic balance adjusting part includes stator, rotor, sloping cam plate subassembly and angle adjustment mechanism, the rotor sets up in the cavity of stator and can rotate in the stator, be provided with along its axially extending's eccentric hole in the stator, sloping cam plate subassembly includes sloping cam plate, universal joint slide and elastic component, the stiff end setting of elastic component is in the eccentric hole, the expansion end of elastic component stretches out the eccentric hole and with the universal joint slide is connected, universal joint slide bottom surface with sloping cam plate face looks butt, the sloping cam plate is fixed through the horizontal pivot rotation with the rotor shaft in the stator, one side hookup of sloping cam plate angle adjustment mechanism adjusts through angle adjustment mechanism the sloping cam plate with the contained angle that the rotor rotated the face of circling round.

In one possible implementation, the universal joint sliding seat comprises a ball seat, a ball body and a connecting rod, wherein the ball seat is movably provided with the ball body, the ball body is inserted into the piston through the connecting rod and is fixed with the piston, and the bottom surface of the ball seat is abutted against the bottom surface of the swash plate.

In one possible implementation manner, two sides of the swash plate are respectively connected with a connecting ring, the connecting rings are provided with shaft holes, and the swash plate is rotationally fixed in the stator through the cooperation of the horizontal rotating shaft and the shaft holes.

In one possible implementation manner, the angle adjusting mechanism comprises a worm wheel, a worm and a knob, one end of the worm is connected with the knob, the other end of the worm is meshed with the worm wheel, and the worm wheel is fixedly connected with the outer wall of the connecting ring, so that the worm wheel is driven to rotate through the rotation of the worm wheel to realize the rotation of the swash plate.

In order to solve the technical problems, the utility model also provides a technical scheme, and provides a stepless adjusting cradle head which comprises a cradle head base, the swash plate dynamic balance adjusting assembly and a pitching frame rotating around a stator shaft of the swash plate dynamic balance adjusting assembly, wherein the swash plate dynamic balance adjusting assembly is arranged above the cradle head base and fixedly connected with the cradle head base.

In one possible implementation manner, the pitching frame comprises a supporting ring, a supporting plate and a plate seat which are oppositely arranged, the plate seat is arranged at the top of the supporting ring and the top of the supporting plate, and the supporting plate is fixedly connected with a rotor of the swash plate dynamic balance adjusting assembly to form pitching motion of the cradle head and support video shooting equipment.

In a possible implementation manner, the stator is provided with a coaxial ring sleeve with a notch near one end of the supporting plate, a first damping adjusting piece is arranged in the ring sleeve, one end of the rotor near the supporting plate is provided with a first concentric ring groove, the first damping adjusting piece comprises a first movable concentric ring and a first adjusting ring, the first movable concentric ring is provided with a protrusion matched with the notch, the outer contour of the protrusion is a coaxial cylindrical surface and is provided with an external thread, the first adjusting ring is provided with an internal thread and is matched with the protrusion, damping oil is distributed between the first movable concentric ring and the wall of the first concentric ring groove, and the first movable concentric ring is driven by the first adjusting ring to be inserted into or far away from the first concentric ring groove so as to realize damping adjustment of the pitch adjusting process of the pitch frame.

In one possible implementation manner, a stator end cover is arranged between the support plate and the stator, a locking knob ring is arranged on the support plate, a screw rod is connected in the locking knob ring, the screw rod is driven to move by the locking knob ring, and the screw rod is close to or far away from the stator end cover, so that locking or releasing of the pitching frame is realized.

In one possible implementation manner, a locking spanner is arranged at the bottom end of the swash plate dynamic balance adjusting assembly and used for locking the cradle head base to rotate.

In a possible implementation manner, the holder base comprises a turntable and a second damping adjusting piece, the second damping adjusting piece is arranged under the turntable, the second damping adjusting piece comprises a second concentric ring, a second movable concentric ring and a second adjusting ring, the annular wall of the second movable concentric ring is inserted between the annular walls of the second concentric ring, damping oil is fully distributed in the annular walls of the second movable concentric ring and the second concentric ring, internal threads are arranged in the second adjusting ring and are sleeved on the second movable concentric ring, and the second movable concentric ring is driven to move up and down through the second adjusting ring so as to realize damping adjustment during horizontal rotation.

In one possible implementation, a gasket is further disposed between the pan-tilt base and the swash plate dynamic balance adjustment assembly.

(III) beneficial effects

Compared with the prior art, the utility model provides the swash plate dynamic balance adjusting assembly and the stepless adjusting cradle head, which have the following beneficial effects:

The swash plate dynamic balance assembly comprises a stator, a rotor, a swash plate assembly and an angle adjusting mechanism, wherein the rotor is arranged in a cavity of the stator and can rotate in the stator, the swash plate assembly comprises a swash plate, a universal joint sliding seat and an elastic piece, an eccentric hole is formed in the stator, the elastic piece is arranged in the eccentric hole, the movable end of the elastic piece is connected with the universal joint sliding seat, the bottom surface of the universal joint sliding seat is in butt joint with the swash plate surface, the swash plate and the rotating end surface of the rotor form a certain included angle, the rotor rotates to drive the universal joint sliding seat to do circular motion along the surface of the swash plate, the distance between the universal joint sliding seat and the rotating end surface of the rotor is gradually reduced, the elastic piece is compressed, reverse acting force of the elastic piece is utilized, reverse moment is provided by the eccentric distance action of the elastic piece, and the dynamic balance effect in the rotor rotating process is maintained. And then apply this sloping cam plate dynamic balance adjusting part to the every single move regulation of cloud platform in, can realize the dynamic balance of cloud platform every single move regulation process to can realize balanced effect adjustable, flexible operation is convenient.

Drawings

FIG. 1 is a first schematic illustration of the overall construction of the swash plate dynamic balance adjustment assembly of the present utility model;

FIG. 2 is a second schematic illustration of the overall construction of the swash plate dynamic balance adjustment assembly of the present utility model;

FIG. 3 is a first schematic view of the swash plate dynamic balance adjustment assembly of the present utility model in a disassembled state;

FIG. 4 is a second schematic view of the swash plate dynamic balance adjustment assembly of the present utility model in a disassembled state;

fig. 5 is a first structural schematic diagram of the stepless adjustment holder of the utility model in a disassembled state;

FIG. 6 is a schematic view of a second structure of the stepless adjustment cradle head of the present utility model in a disassembled state;

FIG. 7 is a schematic diagram of the overall structure of the stepless adjustment cradle head of the present utility model;

FIG. 8 is a schematic cross-sectional view of the continuously adjustable pan/tilt head of FIG. 7 along the A-A plane;

fig. 9 is a schematic view of the structure of the locking wrench in the present utility model.

In the figure: 20. A stator; 21. a rotor; 22. a swash plate assembly; 23. an angle adjusting mechanism; 01. an eccentric hole; 220. a swash plate; 221. a gimbal slide; 222. an elastic member; 2A, a cylinder body; 2B, a piston; 223. a horizontal rotating shaft; 224. a connecting ring; 225. a shaft hole; 211. a ball seat; 212. a sphere; 213. a connecting rod; 311. a worm wheel; 312. a worm; 313. a knob; 100. a swash plate dynamic balance adjustment assembly; 24. a cradle head base; 25. a pitching frame; 251. a support plate; 252. a support ring; 253. a plate seat; 201. a concentric collar sleeve; 202. a first damping adjustment member; 021. a first concentric ring groove; 022. a first movable concentric ring; 023. a first adjusting ring; 26. locking a spanner; 261. a wrench; 262. a screw; 263. a trapezoidal wedge; 241. a second damping adjustment member; 242. a turntable; 041. A second concentric ring; 042. a second movable concentric ring; 043. a second adjusting ring; 27. a stator end cap; 28. locking a knob ring; 29. a screw; 30. a gasket; 31. and (5) a sealing plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the dynamic balance adjusting assembly for a swash plate and specific components thereof in the present utility model are schematic structural diagrams, the dynamic balance adjusting assembly for a swash plate comprises a stator 20, a rotor 21, a swash plate assembly 22 and an angle adjusting mechanism 23, the rotor 21 is disposed in a cavity of the stator 20 and can rotate in the stator 20, an eccentric hole 201 extending along the axial direction of the rotor is disposed in the stator 20, the swash plate assembly 22 comprises a swash plate 220, a universal joint sliding seat 221 and an elastic member 222, a fixed end of the elastic member 222 is disposed in the eccentric hole 201, a movable end of the elastic member 222 extends out of the eccentric hole 201 and is connected with the universal joint sliding seat 221, a bottom surface of the universal joint sliding seat 221 abuts against a swash plate surface, the swash plate 220 is rotationally fixed in the stator 20 through a horizontal rotary shaft 223 perpendicular to the rotor shaft, one side of the swash plate 220 is connected with the angle adjusting mechanism 23, and an included angle between the swash plate 220 and a rotary end surface of the rotor is adjusted through the angle adjusting mechanism 23.

In one possible implementation, the gimbal slide 221 includes a ball seat 211, a ball 212, and a connecting rod 213, where the ball seat 211 is movably provided with the ball 212, and the ball 212 is inserted into the piston 2B through the connecting rod 213 and fixed to the piston 2B, and the bottom surface of the ball seat 211 abuts against the swash plate surface.

Based on the structural design of the dynamic balance adjusting component of the swash plate, the ball body of the universal joint sliding seat can rotate at will in the ball seat, the bottom surface of the ball seat is in sliding friction abutting connection with the inner surface of the swash plate, when the swash plate and the rotor end face are in a certain included angle (namely in a non-parallel state), when the rotor starts to rotate from a lower balance position (zero degree), the universal joint sliding seat is driven to do circular motion along the swash plate surface, as the swash plate and the rotor rotating end face are in a certain angle, the distance between the universal joint sliding seat and the rotor end face is gradually reduced, so that the elastic piece is compressed, and thus under the reaction force of the elastic piece, the eccentric distance between the swash plate and the rotor rotating end face acts to provide a reverse moment, when the swash plate and the rotor rotating end face are parallel (the included angle is zero), the distance between the swash plate and the rotor rotating end face is constant, the elastic piece cannot be compressed regardless of the rotation of the rotor, the reverse moment at the moment is zero, when the included angle between the swash plate and the rotor rotating end face is maximum, the compression difference of the elastic piece reaches maximum when the limit value is rotated to +/-90 degrees, and the dynamic balance capability reaches maximum.

However, in the practical application process, if the reverse moment is required to be selectively realized, only acting force is generated upwards or only downwards, then a limiting mechanism is required to be arranged on the angle adjustment of the swash plate, for example, the limit mechanism can only rotate upwards to form a maximum of +90 degrees, or can only rotate downwards to form a maximum of-90 degrees, and the specific arrangement of the limiting mechanism is not limited.

The elastic member in the present utility model may be any elastic member in the prior art, such as a gas spring, a spring group composed of a plurality of groups of springs, and the like. So long as the effect can be achieved by the cooperation of the adjusting assembly of the utility model. Such as nitrogen springs, hydro-pneumatic springs, etc. The drawings in the description of the present utility model mainly show the gas spring as an elastic member, but are not limited thereto.

When the elastic member is a gas spring, the cylinder body 2A of the gas spring is disposed in the eccentric hole 201, the piston 2B of the gas spring is slidingly connected with the inner cavity of the cylinder body 2A, and the other end of the piston 2B extends out of the eccentric hole 201 and is connected with the gimbal slide seat 221.

In one possible implementation, the two sides of the swash plate 220 are respectively connected with a connecting ring 224, the connecting rings 224 are provided with shaft holes, and the swash plate 220 is rotationally fixed in the stator 20 through the cooperation of the horizontal rotating shaft 223 and the shaft holes 225.

The two sides of the swash plate can be welded with the connecting rings respectively, and the swash plate can be produced into an integrated structure in a machining mode, and mainly provides a connecting piece which can be connected with the stator in a rotating way for the swash plate. Of course, the connection mode of the connecting ring is not needed, the two sides of the sloping cam plate can be directly processed into a rotating shaft mode, and the outer wall of the rotating shaft on one side is designed into a threaded structure. The specific structural implementation is not a design emphasis of the present utility model and is not explicitly recited herein.

The included angle between the swash plate and the rotary end face of the rotor can be adjusted through an angle adjusting mechanism, the angle adjusting mechanism can be any mechanism used for driving the swash plate to rotate in the prior art, the specific structural form of the angle adjusting mechanism is not particularly limited, and the included angle between the swash plate and the rotary end face of the rotor can be changed by driving the swash plate to rotate through the adjusting mechanism.

However, to further illustrate the technical implementation of the present application, the embodiment of the present application further provides a specific structure of one of the angle adjusting mechanisms, in one possible implementation, the angle adjusting mechanism 23 includes a worm wheel 311, a worm 312 and a knob 313, one end of the worm 312 is connected to the knob 313, the other end of the worm 312 is meshed with the worm wheel 311, and the worm wheel 311 is fixedly connected to the outer wall of the connection ring 224, so that the rotation of the swash plate 220 is achieved by rotating the worm 312 to drive the worm wheel 311 to rotate.

Specifically, the outer ring of the connecting ring on one side is designed into hexagonal threads, and is in fit and threaded connection with the hexagonal through hole on the inner wall of the worm wheel, so that the worm wheel is rotated, the connecting ring is driven to rotate, and then the swash plate is driven to rotate. Of course, this is not the only structural design, and other forms of screw connection may be used in the present solution.

Based on the structural design of the dynamic balance component of the swash plate, the swash plate is driven to rotate through the angle adjusting mechanism in the rotating process of the rotor, so that the swash plate and the rotating end surface of the rotor are inclined at a certain angle, and when the rotor rotates, the universal joint sliding seat is driven to do circular motion along the surface of the swash plate. Based on the structural design, the dynamic balance effect in the rotating process of the rotor can be adjusted by controlling the angle adjusting mechanism (namely controlling the inclined angle adjustment of the rotating end face of the swash plate and the rotor).

Based on the structural design of the swash plate dynamic balance assembly, the swash plate dynamic balance assembly can be further applied to a pitching adjusting piece of a shooting and recording tripod head, so that dynamic balance of the tripod head pitching adjusting process can be realized, and the operation is flexible and convenient.

Specifically, in one possible implementation, the present utility model further provides a stepless adjustment pan and tilt head, which includes a pan and tilt head base 24 and the above-mentioned swash plate dynamic balance adjustment assembly 100, and a pitching frame 25 rotating around a stator shaft of the swash plate dynamic balance adjustment assembly 100, wherein the swash plate dynamic balance adjustment assembly 100 is disposed above the pan and tilt head base 24 and fixedly connected with the pan and tilt head base 24.

The cradle head base and the swash plate dynamic balance adjusting assembly can be fixedly connected through various existing connection modes, for example, a connecting plate with a screw hole can be arranged on the cradle head base, and the stator frame at the bottom end (the bottom end of a specific designated sub) of the swash plate dynamic balance adjusting assembly can be fixedly connected through screws.

The specific structure and the functional implementation of the swash plate dynamic balance adjustment assembly are described in detail in the above embodiments, and are not described herein.

In one possible implementation manner, the pitching frame 25 includes a supporting ring 252, a supporting plate 251 and a plate seat 253 which are oppositely arranged, the plate seat 253 is arranged at the top of the supporting ring 252 and the supporting plate 251, and the supporting plate 251 is fixedly connected with a rotor of the swash plate dynamic balance adjusting assembly to form pitching motion of the cradle head and support the video camera equipment. In order to facilitate the coordination and the cooperation of the plate seat and the rotor, the surface of the plate seat, which is abutted against the rotor, is designed into an inward concave cambered surface so as to be convenient for better assembly with the rotor, and the whole structure is more compact and has better cooperation.

In one possible implementation manner, a coaxial ring sleeve 201 with a notch is arranged at one end of the stator 20 close to the supporting plate 251, a first damping adjusting piece 202 is arranged in the ring sleeve 201, a first concentric ring groove 021 is arranged at one end of the rotor 21 close to the supporting plate 251, the first damping adjusting piece 202 comprises a first movable concentric ring 022 and a first adjusting ring 023, the first movable concentric ring 022 is provided with a protrusion matched with the notch, the outer contour of the protrusion is a coaxial cylindrical surface and is provided with an external thread, the first adjusting ring 023 is provided with an internal thread and is matched with the protrusion, damping oil is distributed between the first movable concentric ring 022 and the annular wall of the first concentric ring groove 021, and the first movable concentric ring 022 is driven by the first adjusting ring 023 to be inserted into or far away from the first concentric ring groove 021 so as to realize damping adjustment of the pitching adjusting process of the pitching frame 25.

The first concentric ring grooves and the first movable concentric ring correspond to each other, that is, the first movable concentric ring and the first concentric ring grooves are mutually staggered, the annular wall of the first movable concentric ring can move towards the first concentric ring groove direction and then be inserted between the groove walls of the first concentric ring grooves, and meanwhile, the surfaces in the groove walls of the two concentric rings are fully distributed with viscous damping oil. The first movable concentric ring is driven to move left and right by the first adjusting ring with the internal threads, and when the first movable concentric ring moves towards the direction of the first concentric ring groove, the annular wall of the first movable concentric ring is gradually inserted into the annular wall of the first concentric ring groove, so that the contact area between the first concentric ring and the second concentric ring is gradually increased, and the damping effect of damping oil is also increased. On the contrary, when the first adjusting ring drives the first movable concentric ring to move in the direction away from the groove of the first concentric ring, the first adjusting ring is separated from the groove wall of the first concentric ring groove, so that the contact area between the first adjusting ring and the second adjusting ring is gradually reduced, and the damping effect of damping oil is also reduced. Through the structural design, stepless damping adjustment in the pitching adjusting process of the pitching frame can be realized, and the specific structural design between the first damping adjusting piece and the pan-tilt assembly is matched with each other, so that the integral structural design is simplified, and the stepless damping adjustment of pitching is realized.

In one possible implementation manner, a stator end cover 27 is arranged between the support plate 251 and the stator 20, a locking knob ring 28 is arranged on the support plate 251, a screw 29 is connected in the locking knob ring 28, and the screw 29 is driven to move by the locking knob ring 28 and is close to or far away from the stator end cover 27, so that locking or releasing of the pitching frame is realized.

The locking knob is internally provided with an internal thread, and the locking knob ring is internally connected with a threaded rod with an external thread, wherein a rotation preventing design is arranged between the threaded rod and the threaded rod hole.

Because the first movable concentric ring 022, the first adjusting ring groove 023 and the supporting plate 251 are connected with the rotor into a whole, the rotor can rotate together with the stator, the stator end cover is arranged between the supporting plate 251 and the first movable concentric ring 022, and the locking knob ring drives the screw rod inwards to squeeze the stator end cover, so that friction between the surface, abutted against the stator 20, of the stator end cover 27 is increased, the rotation of the first movable concentric ring 022 is limited, namely the integral relative rotation of the rotor is limited, and the integral locking of the pitching frame is realized.

In one possible implementation, the bottom end of the swash plate dynamic balance adjustment assembly 100 is provided with a locking wrench 26, and the locking wrench 26 is used for locking the rotation of the cradle head base 25.

The holder base is rotatable relative to other components thereon, so long as the locking wrench can achieve the mutual rotation of the components (specifically, the stator) for locking the holder base and the connecting portion thereof, and the specific implementation structure of the locking wrench is not particularly limited, however, in order to clearly and clearly illustrate the technical scheme of the present utility model, please refer to fig. 9, and the present utility model is specifically described with reference to a specific locking wrench structure. As shown in the figure, the locking wrench 26 may include a wrench 261, a screw 262 and a trapezoidal wedge 263, the screw 262 is connected to the inner end of the wrench 261, the other end of the screw 262 is connected to the long side end face of the trapezoidal wedge 263, the short side end face of the trapezoidal wedge 263 faces inwards, the screw is driven to move inwards by the rotation of the wrench, so as to push the trapezoidal wedge 263 inwards, the cross section of the trapezoidal wedge is widened gradually, so that the contact area between the wedge and a stator thereon and the contact area between the wedge and a holder base under the trapezoidal wedge are increased gradually, the friction force is also increased gradually, and thus the friction locking effect is achieved, and the holder base cannot rotate relative to the stator any more.

In one possible implementation manner, the pan-tilt base includes a turntable 242 and a second damping adjustment member 241, the second damping adjustment member 241 is disposed under the turntable 242, the second damping adjustment member 241 includes a second concentric ring 041, a second movable concentric ring 042, and a second adjustment ring 043, the annular wall of the second movable concentric ring 042 is inserted between the annular walls of the second concentric ring 041, damping oil is distributed between the annular walls of the second movable concentric ring 042 and the second concentric ring 041, and an internal thread is disposed in the second adjustment ring 043 and is sleeved on the second movable concentric ring 042, and the second movable concentric ring 042 is driven to move up and down by the second adjustment ring 043, so as to realize damping adjustment during horizontal rotation.

Through the design of second damping adjusting piece, only through the rotation of second adjusting ring, can realize the stepless damping adjustment of cloud platform base horizontal rotation process. And the whole structure is compact in design, and the effect of small volume and multiple functions is truly realized.

In one possible implementation, a gasket 30 is further disposed between the pan and tilt head base 24 and the swashplate dynamic balance adjustment assembly 100.

In one possible embodiment, the outside of the support plate is also provided with a sealing plate 31.

As can be appreciated from the above detailed description of the stepless adjustment holder in combination with the drawings of the specification of the utility model, the stepless adjustment holder utilizes the dynamic balance adjustment assembly of the swash plate, and drives the swash plate to rotate through the angle adjustment mechanism, so that the swash plate and the rotating end face of the rotor form a certain angle, and when the pitching frame performs pitching rotation adjustment (namely pitching rotor rotation), for example, the rotor starts to rotate from a lower balance position (zero degree), the universal joint sliding seat is driven to do circular motion along the surface of the swash plate, and as the swash plate and the rotating end face of the rotor form a certain angle, the distance between the universal joint sliding seat and the end face of the rotor is gradually reduced, so that the elastic piece is compressed, and the eccentric distance between the elastic piece and the elastic piece acts to provide a reverse moment under the reaction force of the elastic piece. When the inclined disc is parallel to the rotor rotating end face (namely, the included angle is zero), the distance between the inclined disc and the rotor end face is constant, so that the elastic piece cannot be compressed when the pitching frame (namely, the pitching rotor) rotates in a pitching mode, the reverse moment at the moment is zero, when the included angle between the inclined disc and the rotor rotating end face reaches the limit of +90 degrees, the compression difference of the elastic piece reaches the maximum, the reverse moment at the moment reaches the maximum, the dynamic balance capacity reaches the maximum, and the dynamic balance effect of the pitching rotor is adjustable.

Through further design second damping adjustment subassembly, can realize the stepless damping adjustment in the horizontal rotation direction of cloud platform, simple structure, the function is diversified.

Furthermore, by designing the first damping adjusting component at one side of the pitching frame, stepless damping adjustment in the pitching adjusting process can be realized only through rotation control of the adjusting ring, so that convenience and safety of the whole pan-tilt adjusting process are ensured.

The stepless adjustable cradle head is designed to be a two-dimensional adjustable cradle head, has dynamic balance capacity, realizes stepless damping adjustment of the horizontal movement direction of the integral cradle head through the second damping adjustment piece, can realize stepless damping adjustment in the pitching direction based on the first damping adjustment piece, and can realize stepless damping adjustment in the pitching adjustment process by the control of the first damping adjustment piece when the pitching frame rotates to any position. When the pitching frame rotates, the swash plate can be regulated to rotate, so that the piston is pushed to compress the elastic piece, reverse rotation moment is provided, and dynamic balance is realized.

It should be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The utility model provides a sloping cam plate dynamic balance adjusting part, its characterized in that, sloping cam plate dynamic balance adjusting part includes stator, rotor, sloping cam plate subassembly and angle adjustment mechanism, the rotor sets up in the cavity of stator and can be in the coaxial rotation of stator, be provided with along its axially extending's eccentric hole in the stator, sloping cam plate subassembly includes sloping cam plate, universal joint slide and elastic component, the stiff end setting of elastic component is in the eccentric hole, the expansion end of elastic component stretches out the eccentric hole and with the universal joint slide is connected, universal joint slide bottom surface with sloping cam plate face looks butt, the sloping cam plate is in through the horizontal pivot rotation with the rotor shaft is fixed in the stator, one side hookup of sloping cam plate angle adjustment mechanism adjusts through angle adjustment mechanism the sloping cam plate rotates the contained angle of face of circling round with the rotor.

2. The swash plate dynamic balance adjustment assembly of claim 1, wherein the universal joint slide comprises a ball seat, a ball and a connecting rod, the ball seat is movably provided with the ball, the ball is inserted into a piston through the connecting rod and fixed with the piston, and the bottom surface of the ball seat is abutted against the bottom surface of the swash plate.

3. The swash plate dynamic balance adjustment assembly according to claim 1, wherein two sides of the swash plate are respectively connected with a connecting ring, the connecting rings are provided with shaft holes, and the swash plate is rotationally fixed in the stator through the cooperation of the horizontal rotating shaft and the shaft holes.

4. A swash plate dynamic balance adjustment assembly as claimed in claim 3, wherein the angle adjustment mechanism comprises a worm wheel, a worm and a knob, one end of the worm is connected with the knob, the other end of the worm is meshed with the worm wheel, the worm wheel is fixedly connected with the outer wall of the connecting ring, and thereby the rotation of the worm wheel is driven by the rotation of the worm to realize the rotation of the swash plate.

5. The stepless regulation tripod head is characterized by comprising a tripod head base, the swash plate dynamic balance regulating assembly according to any one of claims 1-4 and a pitching frame rotating around a stator shaft of the swash plate dynamic balance regulating assembly, wherein the swash plate dynamic balance regulating assembly is arranged above the tripod head base and fixedly connected with the tripod head base.

6. The stepless regulation cradle head according to claim 5, wherein the pitching frame comprises a supporting ring, a supporting plate and a plate seat which are oppositely arranged, the plate seat is arranged at the tops of the supporting ring and the supporting plate, and the supporting plate is fixedly connected with a rotor of the swash plate dynamic balance regulating assembly to form pitching movement of the cradle head and support video camera equipment.

7. The stepless regulation cradle head according to claim 6, wherein a coaxial ring sleeve with a notch is arranged at one end of the stator, which is close to the supporting plate, a first damping regulating piece is arranged in the ring sleeve, a first concentric ring groove is arranged at one end of the rotor, which is close to the supporting plate, the first damping regulating piece comprises a first movable concentric ring and a first regulating ring, the first movable concentric ring is provided with a protrusion which is matched with the notch, the outer contour of the protrusion is a coaxial cylindrical surface and is provided with an external thread, the first regulating ring is provided with an internal thread which is matched with the protrusion, damping oil is distributed between the first movable concentric ring and the wall of the first concentric ring groove, and the first movable concentric ring is driven to be inserted into or far away from the first concentric ring groove through the first regulating ring so as to realize damping regulation in the pitch regulating process of the pitch frame.

8. The stepless adjustment cradle head according to claim 6, wherein a stator end cover is arranged between the support plate and the stator, a locking knob ring is arranged on the support plate, a screw rod is connected in the locking knob ring, and the screw rod is driven to move by the locking knob ring and is close to or far away from the stator end cover so as to lock or release the pitching frame.

9. The stepless adjustment cradle head according to claim 5, wherein a locking spanner is arranged at the bottom end of the swash plate dynamic balance adjustment assembly, and the locking spanner is used for locking the cradle head base to rotate.

10. The stepless regulation tripod head of claim 5, wherein said tripod head base comprises a turntable and a second damping regulating member, said second damping regulating member is arranged under said turntable, said second damping regulating member comprises a second concentric ring, a second movable concentric ring and a second regulating ring, the annular wall of said second movable concentric ring is inserted between the annular walls of said second concentric ring, damping oil is distributed in the annular walls of said second movable concentric ring and said second concentric ring, said second regulating ring is internally provided with internal threads, and is sleeved on said second movable concentric ring, said second movable concentric ring is driven to move up and down by said second regulating ring, so as to realize damping regulation during horizontal rotation.