阅读说明：本技术 一种可实现往复开合的舞台机械装置 (Stage mechanical device capable of realizing reciprocating opening and closing ) 是由 李利 杜安坤 蔡朝阳 王强 高松松 刘增 高敬东 金艳苓 刘斌 肖瑞磊 周静涛 于 2020-08-27 设计创作，主要内容包括：本发明一种可实现往复开合的舞台机械装置,属于舞台机械领域。本发明一种可实现往复开合的舞台机械装置,包括安装基座、驱动系统、传动机构、末端结构,传动机构包括两个小齿轮,其中一个小齿轮与电机减速机输出轴联接,另一个为惰轮,大齿轮上有偏心轴,形成曲柄,大齿轮、连杆、摇杆共同构成曲柄摇杆机构,传动机构左右对称布置,小齿轮的等速转动能变成摇杆的往复摆动,摇杆往复摆动带动末端结构往复开合。本发明一种可实现往复开合的舞台机械装置,其控制系统简化,可靠性高。(The invention discloses a stage mechanical device capable of realizing reciprocating opening and closing, and belongs to the field of stage machinery. The invention relates to a stage mechanical device capable of realizing reciprocating opening and closing, which comprises an installation base, a driving system, a transmission mechanism and a tail end structure, wherein the transmission mechanism comprises two pinions, one pinion is connected with an output shaft of a motor reducer, the other pinion is an idler wheel, an eccentric shaft is arranged on the gearwheel to form a crank, the gearwheel, a connecting rod and a rocker jointly form a crank-rocker mechanism, the transmission mechanism is arranged in a bilateral symmetry manner, constant-speed rotation of the pinions can be changed into reciprocating swinging of the rocker, and the reciprocating swinging of the rocker drives the tail end structure to open and close in a reciprocating manner. The stage mechanical device capable of realizing reciprocating opening and closing is simple in control system and high in reliability.)

1. The utility model provides a can realize reciprocal stage mechanical device who opens and shuts which characterized in that: comprises a mounting base (1) with a mounting table (11), a driving system (2) arranged on the lower surface of the mounting table (11), a transmission mechanism (3) and a tail end structure (4) arranged on the upper surface of the mounting table (11),

the driving system (2) comprises a motor speed reducer (21), the transmission mechanism (3) comprises two meshed pinions (31), two large gears (32) which are respectively meshed with the two pinions (31), are positioned on the left and right sides of the two pinions (31) and are arranged in bilateral symmetry, two connecting rods (33) which are arranged in bilateral symmetry, two rockers (34) which are arranged in bilateral symmetry, a regular polygon transmission shaft closed chain (35), at least one circle of middle ring connecting rods (36) and at least one circle of inner ring connecting rods (37), the regular polygon transmission shaft closed chain (35) adopts a central symmetry structure, the regular polygon transmission shaft closed chain (35) comprises a plurality of long shafts (351) and a plurality of short shafts (352) which are arranged at intervals in a staggered manner, each long shaft (351) is connected with each short shaft (352) in series through a cross-shaft universal coupling (353), and a plurality of middle ring, the number of the inner ring connecting rods (37) in each circle is multiple, the number of the middle ring connecting rods (36) in each circle, the number of the inner ring connecting rods (37) in each circle and the number of the short shafts (352) in each circle are the same as the number of the long shafts (351), the tail end structure (4) comprises an outer ring structure (41), at least one middle ring structure (42) and at least one inner ring structure (43), the number of turns of the middle ring structure (42) is the same as that of the middle ring connecting rods (36), the number of turns of the inner ring structure (43) is the same as that of the inner ring connecting rods (37),

the mounting seat (211) of the motor speed reducer (21) is fixedly connected to the lower surface of the mounting table (11), the output shaft of the motor speed reducer (21) is connected with one pinion (31), each gearwheel (32) is provided with an eccentric shaft (321), two ends of each connecting rod (33) are respectively hinged with the eccentric shaft (321) and one end of a rocker (34) through a joint bearing (38), the other end of each rocker (34) is respectively hinged with a long shaft (351), each long shaft (351) is fixed on the mounting table (11) of the mounting base through two bearings (354) with seats, the outer ring structures (41) are fixedly sleeved on the long shafts (351) at intervals, two ends of the middle ring connecting rods (36) are respectively hinged with the outer ring structures (41) and the middle ring structures (42), the end parts of the middle ring structures (42) are hinged to the upper surface of the mounting table (11), and the hinge points of the middle ring structures (42) and the mounting table (11) are uniformly arranged at intervals, the two ends of the inner ring connecting rod (37) are hinged to the inner ring structure (43) and the middle ring structure (42) respectively, the end portion of the inner ring structure (43) is hinged to the upper surface of the mounting table (11), hinge points of the inner ring structure (43) and the mounting table (11) are evenly arranged at intervals, and the hinge points of the middle ring connecting rod (36) and the middle ring structure (42) are located above the hinge points of the inner ring connecting rod (37) and the middle ring structure (42).

2. A stage mechanical device capable of reciprocating opening and closing according to claim 1, wherein: the connecting rod (33) is a connecting rod with adjustable length.

3. A stage mechanical device capable of reciprocating opening and closing according to claim 2, wherein: the middle ring connecting rod (36) is a connecting rod with adjustable length.

4. A stage mechanical device capable of reciprocating opening and closing according to claim 3, wherein: the inner ring connecting rod (37) is a connecting rod with adjustable length.

5. A stage mechanical device capable of reciprocating opening and closing according to claim 4, wherein: the outer ring structure (41) is provided with a long round hole (411).

6. A stage mechanical device capable of reciprocating opening and closing according to claim 5, wherein: the number of the middle ring connecting rods (36) is six.

7. A stage mechanical device capable of reciprocating opening and closing according to claim 6, wherein: the outer ring structure (41) is fan-shaped.

8. A stage mechanical device capable of reciprocating opening and closing according to claim 7, wherein: the mounting table (11) adopts a symmetrical frame structure.

Technical Field

The invention belongs to the field of stage machinery, and particularly relates to a stage mechanical device capable of realizing reciprocating opening and closing.

Background

In the field of stage machinery, in order to achieve reciprocating opening and closing, a stage mechanical device usually adopts a set of method for driving a corresponding one of the structures to move, that is, each structure is correspondingly provided with a set of actuating elements such as electric push rods or hydraulic cylinders, and the actuating elements drive the structures to reciprocate. The one-to-one stage mechanical device has high requirements on a control system, and the control system is required to have the functions of speed regulation, positioning, reversing, synchronization and the like, but in order to realize the functions, detection and control units such as a travel switch, an encoder, a frequency converter or a speed regulating valve and the like are required to be arranged on each set of execution elements, and a master control board is required to synchronously control a plurality of sets of execution mechanisms. The existing stage mechanical device has numerous elements, the control system is complex, the system is shut down when any link fails, and the reliability is low.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a stage mechanical device capable of realizing reciprocating opening and closing, wherein a control system is simplified and the reliability is high.

The invention relates to a stage mechanical device capable of realizing reciprocating opening and closing, which comprises a mounting base with a mounting table, a driving system arranged on the lower surface of the mounting table, a transmission mechanism and a tail end structure arranged on the upper surface of the mounting table, wherein the driving system comprises a motor reducer, the transmission mechanism comprises two small gears which are meshed with each other, two large gears which are respectively meshed with the two small gears, are positioned on the left and right sides of the two small gears and are arranged in bilateral symmetry, two connecting rods which are arranged in bilateral symmetry, two rockers which are arranged in bilateral symmetry, a regular polygon transmission shaft closed chain, at least one circle of middle ring connecting rods and at least one circle of inner ring connecting rods, the regular polygon transmission shaft closed chain adopts a central symmetry structure, the regular polygon transmission shaft closed chain comprises a plurality of long shafts and a plurality of short shafts which are arranged in a staggered mode at intervals, each long shaft, the number of the inner ring connecting rods in each circle, the number of the inner ring connecting rods in each circle and the number of the short shafts are the same as the number of the long shafts, the tail end structure comprises an outer ring structure, at least one circle of middle ring structure and at least one circle of inner ring structure, the number of turns of the middle ring structure is the same as that of turns of the middle ring connecting rods, the number of turns of the inner ring structure is the same as that of the inner ring connecting rods, a mounting seat of a motor speed reducer is fixedly connected to the lower surface of the mounting table, an output shaft of the motor speed reducer is connected with one of the small gears, an eccentric shaft is arranged on each large gear, two ends of each connecting rod are respectively hinged with the eccentric shaft and one end of a rocker through joint bearings, the other end of each rocker is respectively hinged with one long shaft, each long shaft is fixed on the mounting table of the mounting base through two bearings with seats, the middle ring structure is hinged, the end part of the middle ring structure is hinged to the upper surface of the mounting table, hinge joints of the middle ring structure and the mounting table are uniformly arranged at intervals, two ends of the inner ring connecting rod are hinged to the inner ring structure and the middle ring structure respectively, the end part of the inner ring structure is hinged to the upper surface of the mounting table, the hinge joints of the inner ring structure and the mounting table are uniformly arranged at intervals, and the hinge joints of the middle ring connecting rod and the middle ring structure are located above the hinge joints of the inner ring connecting rod and the middle ring structure.

The stage mechanical device capable of realizing reciprocating opening and closing is characterized in that the connecting rod is a connecting rod with adjustable length.

The invention relates to a stage mechanical device capable of realizing reciprocating opening and closing, wherein a middle ring connecting rod is a connecting rod with adjustable length.

The stage mechanical device capable of realizing reciprocating opening and closing is characterized in that the inner ring connecting rod is a connecting rod with adjustable length.

The stage mechanical device capable of realizing reciprocating opening and closing is characterized in that the outer ring structure is provided with a long round hole.

The stage mechanical device capable of realizing reciprocating opening and closing is characterized in that six middle ring connecting rods are arranged.

The stage mechanical device capable of realizing reciprocating opening and closing is characterized in that the outer ring structure is fan-shaped.

The stage mechanical device capable of realizing reciprocating opening and closing is characterized in that the mounting platform is of a symmetrical frame structure.

According to the stage mechanical device capable of realizing reciprocating opening and closing, the reciprocating opening and closing of the tail end structure can be realized by utilizing the continuous unidirectional operation of the motor to drive the transmission mechanism, the repeated starting and stopping and the forward and reverse rotation reversing of the motor are not needed, the device is greatly simplified, elements such as a speed regulating valve and a commutator are not needed, and a control system matched with the device is also greatly simplified; the transmission mechanisms are in a parallel connection mode, the mechanism rigidity is high, the transmission mechanisms are mutually redundant, even if any transmission chain is broken, the action can still be continued, and the reliability is high.

The stage mechanism capable of opening and closing reciprocally will be further described with reference to the accompanying drawings.

Drawings

Fig. 1 is a top view of a stage mechanical device capable of realizing reciprocating opening and closing of the invention;

FIG. 2 is a left side view of a stage mechanism for reciprocating opening and closing according to the present invention;

fig. 3 is a sectional view taken along a-a in fig. 1.

Detailed Description

As shown in fig. 1-3, the stage mechanical device capable of reciprocating opening and closing comprises a mounting base 1, a driving system 2, a transmission mechanism 3 and a terminal structure 4, wherein the mounting base 1 is provided with a mounting table 11, the driving system 2 is mounted on the lower surface of the mounting table 11, and the terminal structure 4 is mounted on the upper surface of the mounting table 11. The mounting base 1 provides a mounting base for the device and provides space protection for the driving system 2 and the transmission mechanism 3; the driving system 2 comprises a motor reducer, a brake and a power source, wherein the motor reducer provides a power source for the device to rotate and drive; the transmission mechanism 3 is responsible for converting continuous unidirectional rotation motion of the motor reducer 21 into cyclic reciprocating opening and closing motion.

As shown in fig. 1-3, the driving system 2 includes a motor reducer 21, the motor reducer 21 is mounted on the lower surface of the mounting table through a motor reducer mounting seat, the transmission mechanism 3 includes two pinions 31, two pinions 32, two connecting rods 33, two rockers 34, a regular polygon transmission shaft closed chain 35, at least one circle of middle ring connecting rod 36, at least one circle of inner ring connecting rod 37, the two pinions 31 are engaged with each other, the two pinions 32 are engaged with the two pinions 31 respectively, are positioned on the left and right sides of the two pinions 31 and are arranged symmetrically, the two connecting rods 33 are arranged symmetrically and have adjustable lengths, the two rockers 34 are arranged symmetrically, the regular polygon transmission shaft closed chain 35 adopts a central symmetry structure, the regular polygon transmission shaft closed chain 35 includes a plurality of long shafts 351 and a plurality of short shafts 352 arranged alternately, each long shaft 351 and each short shaft 352 are connected in, the number of the middle ring connecting rods 36 in each circle is multiple, the number of the inner ring connecting rods 37 in each circle is multiple, the number of the middle ring connecting rods 36 in each circle, the number of the inner ring connecting rods 37 in each circle and the number of the short shafts 352 are the same as the number of the long shafts 351, the tail end structure 4 comprises an outer ring structure 41, at least one middle ring structure 42 and at least one inner ring structure 43, the number of turns of the middle ring structure 42 is the same as that of the middle ring connecting rods 36, and the number of turns of the inner ring structure 43 is the same as that of the inner ring connecting rods 37.

As shown in fig. 1-3, the mounting seat 211 of the motor reducer 21 is fixedly connected to the lower surface of the mounting table 11, the output shaft of the motor reducer 21 is connected to one of the pinions 31, each of the pinions 32 is provided with an eccentric shaft 321, the eccentric shaft 321 is disposed near the edge of the pinion 32, two ends of each connecting rod 33 are respectively hinged to the eccentric shaft 321 and one end of each rocker 34 through a joint bearing 38, the other end of each rocker 34 is respectively hinged to one long shaft 351, each long shaft 351 is fixed to the mounting table 11 of the mounting base through two bearings with seats 354, the outer ring structures 41 are fixedly sleeved on the long shafts 351 at intervals, two ends of the middle ring connecting rod 36 are respectively hinged to the outer ring structure 41 and the middle ring structure 42, the end of the middle ring structure 42 is hinged to the upper surface of the mounting table 11, the hinge points of the middle ring structure 42 and the mounting table 11 are uniformly arranged at intervals, two, The middle ring structure 42 is hinged, the end part of the inner ring structure 43 is hinged on the upper surface of the mounting table 11, the hinged points of the inner ring structure 43 and the mounting table 11 are uniformly arranged at intervals, and the hinged point of the middle ring connecting rod 36 and the middle ring structure 42 is positioned above the hinged point of the inner ring connecting rod 37 and the middle ring structure 42.

Wherein, the connecting rod 33, the middle ring connecting rod 36 and the inner ring connecting rod 37 are all length-adjustable connecting rods.

As shown in fig. 1, the number of the middle ring connecting rods 36 is six, and the mounting table 11 adopts a symmetrical frame structure.

As shown in fig. 2 and 3, the axis of the rocker 34 is an arc, the outer ring structure 41 is fan-shaped, and the outer ring structure 41 is provided with an oblong hole 411.

As shown in fig. 1, the outer ring structure 41, the middle ring structure 42, and the inner ring structure 43 are each provided with one turn, six middle ring structures 42 are arranged at intervals, the middle ring structures 42 adopt an approximately quadrangular frame structure, and six inner ring structures 43 are arranged at intervals, and adopt an approximately groove-shaped frame structure.

In the stage mechanical device capable of realizing reciprocating opening and closing, the tail end structure 4 can be designed into a mimicry form according to different artistic requirements, a required structure is arranged when the stage mechanical device is used, if the petal opening and closing are required to be displayed, a multi-circle and multi-petal structure is arranged on the tail end structure 4, in the whole action process driven by a transmission mechanism, geometric interference cannot exist between the multi-circle and multi-petal structure, a reasonable gap is always ensured, the number of sides of a regular polygon is determined according to the required number of petals, and the number of turns of the middle ring connecting rod and the inner ring connecting rod is determined according to the required number of the petals.

The stage mechanical device capable of realizing reciprocating opening and closing comprises two small gears, wherein one small gear is connected with an output shaft of a motor reducer, the other small gear is an idler gear, an eccentric shaft is arranged on the large gear to form a crank, the large gear, a connecting rod and rocking bars jointly form a crank-rocking-bar mechanism, transmission mechanisms are symmetrically arranged left and right, the two crank-rocking-bar mechanisms always form two congruent quadrilaterals which are mutually mirrored in the motion process, the swinging angles and speeds of the left rocking bar and the right rocking bar are always equal, and meanwhile, two transmission shafts (two long shafts 351 which are respectively connected with the two rocking bars are driven to swing, so that constant-speed rotation of the small gears can be changed into reciprocating swinging of the rocking bars, and the rocking bars can be swung. In fig. 3, the two connecting rods are farthest away from the hinged end of the large gear, at this time, the middle ring connecting rod and the inner ring connecting rod are in a folded state, the end structure is in a closed limit state, and when the two connecting rods are closest to the hinged end of the large gear, the middle ring connecting rod and the inner ring connecting rod are in an opened state, the end structure is in an opened limit state.

In the stage mechanical device capable of realizing reciprocating opening and closing, the connecting rod 33 is adjustable in length, and the joint bearings 38 are used at two ends, so that the installation error in a plane can be eliminated.

As shown in fig. 1, in the stage mechanical device capable of realizing reciprocating opening and closing, a long shaft 351 and a short shaft 352 are connected in series by a cross shaft type universal coupling 353 to form a regular polygon closed chain, the internal angle of the polygon meets the requirement of the maximum allowable shaft line break angle of the cross shaft type universal coupling, the arrangement of the chains ensures central symmetry, so that a parallel mechanism with better rigidity is formed, each long shaft 351 is fixed on a mounting base 1 by two bearings 354 with seats, and the short shaft 352 is freely released and is not fixedly connected with the mounting base 1.

In the stage mechanical device capable of realizing reciprocating opening and closing, the outer ring structure 41 is fixed on the long shaft 351, the arrangement of the long round hole 411 on the outer ring structure 41 is convenient for the installation and adjustment of the flaky and petal-shaped structures connected with the outer ring structure, and the shape of the outer ring structure 41 and the installation hole 412 (see fig. 3) arranged on the outer ring structure can be adjusted according to requirements. The middle ring connecting rod, the inner ring connecting rod, the middle ring structure and the inner ring structure can be added according to the requirement so as to realize linkage of a multi-ring structure. The length of the middle ring link 36 and the length of the inner ring link 37 can be adjusted, and therefore, the opening and closing angle of the middle ring structure 42 and the inner ring structure 43 can be adjusted.

The stage mechanical device capable of realizing reciprocating opening and closing can automatically realize acceleration, deceleration and reversing of the structure and synchronous action of a plurality of associated structures through a set of specially designed mechanical transmission mechanism, so that a control system matched with the stage mechanical device is greatly simplified, and the reliability of the system is greatly improved, and in addition, the stage mechanical device also has the following beneficial effects:

(1) the single motor continuously and unidirectionally operates, can realize the cyclic reciprocating opening and closing of the tail end structure, and does not need repeated starting and stopping of the motor and forward and reverse rotation reversing.

(2) The transmission mechanisms are in a parallel connection mode, the mechanism rigidity is high, the mechanisms are mutually redundant, and even if any transmission chain is broken, the action can still be continued.

(3) The structure, the layout and the size of the device are properly adjusted, different requirements of a user on the structural form, the size, the opening and closing angle and the running speed of the tail end can be met, and the device is wide in application range.

The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.