CN210795603U - Built-in crane for stage - Google Patents
Built-in crane for stage Download PDFInfo
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- CN210795603U CN210795603U CN201921350615.1U CN201921350615U CN210795603U CN 210795603 U CN210795603 U CN 210795603U CN 201921350615 U CN201921350615 U CN 201921350615U CN 210795603 U CN210795603 U CN 210795603U
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- winding drum
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- reducer
- gear reducer
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Abstract
The utility model discloses a built-in loop wheel machine is used to stage, including support and hollow structure reel, be equipped with planetary gear reducer and servo motor in the reel, planetary gear reducer's ring gear is fixed with reel one end, and the other end of reel passes through the center pin and connects on the support, and one side of planetary gear reducer's planet carrier is fixed with the support, servo motor connect the opposite side at the planet carrier, servo motor's output shaft is connected with planetary gear reducer's sun gear transmission, the below of reel still is equipped with the rope arranger. The utility model discloses a built-in loop wheel machine is used to stage has small, and the advantage that control accuracy is high has very high practical value.
Description
Technical Field
The utility model relates to a stage equipment technical field especially relates to a stage is with built-in loop wheel machine.
Background
With the development of the requirements of stage arrangement and movie shooting, the requirements of scenes and stage equipment are continuously expanding, and more equipment are required to be installed in the scenes and the stages. In scenes and studios, for the lifting of stage lamps and scenery devices, cranes for lifting the lamps or scenery devices are required to be arranged for the flying actions of actors, so that the lamps or scenery devices can be lifted and adjusted. Meanwhile, a power and signal cable winding and unwinding drum of a lamp or a scene device is required to be configured. However, the existing stage crane is large in size, not easy to arrange and move, and the steel wire rope of the crane is low in retraction control precision, so that the stage artistic effect is influenced. The disclosure of the disclosure is 2018, 11/6, and chinese patent document No. CN208054793U discloses an electric hoist, which includes a stepping motor and a protective cover fixedly connected to a body of the stepping motor, a reel is fixedly disposed on an output shaft of the stepping motor, a first guide shaft and a second guide shaft are disposed on the protective cover, the second guide shaft is disposed under the reel, the first guide shaft is disposed between the second guide shaft and the reel, the first guide shaft is sleeved with a first pulley, the second guide shaft is sleeved with a second pulley, two ends of the first guide shaft are respectively and fixedly provided with a guide block, the protective cover is provided with a guide groove matched with the guide block, a return spring is disposed between the bottom of the guide groove and the guide block, an upper end face of the guide block is fixedly provided with a friction plate which can abut against the reel, and a cable on the electric hoist sequentially passes through the reel, pulley two and pulley one. The structure has the advantages of being capable of tensioning the cable, avoiding the cable from loosening and the like. However, the motor of the electric hoist is connected in series with the winding drum, so that the length of the winding drum in the axial direction is long, the volume of the crane is large, and meanwhile, the control precision of the steel wire rope is low, and the stage artistic effect is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving prior art's stage loop wheel machine bulky, be difficult for arranging and removing, and the wire rope control accuracy of loop wheel machine is low, influences the problem of stage artistic effect, provides a built-in loop wheel machine is used to stage, has small, advantage that control accuracy is high.
The technical scheme adopted by the utility model for solving the technical problems is that the built-in crane for the stage comprises a support and a winding drum which is rotatably arranged on the support, the winding drum is of a hollow structure, a planetary gear reducer and a servo motor are arranged in the winding drum, an inner gear ring of the planetary gear reducer is fixed with one end of the winding drum, the other end of the winding drum is connected with the support through a central shaft, one side of a planet carrier of the planetary gear reducer (one end of a planet wheel shaft) is fixed with the support, the servo motor is connected with the other side of the planet carrier (the other end of the planet wheel shaft), an output shaft of the servo motor is in transmission connection with a sun wheel of the planetary gear reducer, a rope arranger is further arranged below the winding drum and comprises a lead screw which is parallel to the axis of the winding drum and a guide mechanism, one end of the lead, the screw rod is connected with a sliding block in a threaded mode, a pulley is arranged on the sliding block, and a wheel shaft of the pulley is perpendicular to the screw rod. The utility model discloses a built-in loop wheel machine is used to stage includes the support and rotationally sets up the reel on the support, and is arranged in drive reel pivoted motor setting and is used for the planetary gear reduction unit of speed reduction all to set up in the reel, has just so avoided reel and motor series connection setting among the prior art, and the ascending length of reel axial is very long, and the hoist is bulky, is difficult for arranging and the problem of removal. And the rope arranger arranged below the winding drum can put down or wind up the steel wire ropes on the winding drum in sequence, so that the precise lifting of the hung object is ensured. When the motor rotates, the sun wheel drives the screw rod to rotate, so that the moving speed of the sliding block on the screw rod is consistent with the moving speed of the sliding block in the axial direction of the winding drum when the steel wire rope of the crane is placed down or wound up. Furthermore, the utility model discloses a servo motor is as driving motor, through the controller, can carry out accurate control to the rotation of reel to receive and release realization accurate control to wire rope.
Preferably, the support comprises support plates arranged at two ends of the winding drum and a pull rod connected between the support plates, one end of the winding drum is fixed on the support plate at one side through a planetary gear reducer, and the other end of the winding drum is connected on the support plate at the other side through a central shaft. The utility model discloses only set up two board-like supports (backup pad) on the length direction of reel, can further shorten the length of loop wheel machine, reduce the volume.
Preferably, a speed reducer is arranged between the planetary gear speed reducer and the servo motor, the speed reducer is fixed on a planet carrier of the planetary gear speed reducer, and an output shaft of the speed reducer is in transmission connection with a sun gear of the planetary gear speed reducer; the servo motor is fixed on the speed reducer, and an output shaft of the servo motor is connected with an input end of the speed reducer. The speed reducer is arranged between the planetary gear speed reducer and the servo motor, so that the control precision of the winding drum can be further improved, and the bearing capacity of the motor is improved.
Preferably, the guide mechanism comprises two guide rods symmetrically arranged on two sides of the screw rod, the sliding block is provided with corresponding guide holes, and the guide rods penetrate through the guide holes. The guide rod is matched with the guide hole in the sliding block, so that the sliding block can only move along the axial direction of the screw rod, the sliding block is prevented from rotating along the circumferential direction of the screw rod under the stress state, and the position accuracy of the pulley is ensured.
Preferably, the transmission mechanism comprises a driving wheel arranged on a sun wheel shaft of the planetary gear reducer, a driven wheel is arranged at the end part of the screw rod, the driving wheel and the driven wheel are synchronous belt wheels, the driving wheel and the driven wheel are connected through synchronous belt transmission, and an outer cover is arranged on the transmission mechanism. The driving wheel arranged on the sun wheel shaft is connected with the driven wheel arranged at the end part of the screw rod through a synchronous belt, so that the transmission precision can be ensured, and the moving speed of the sliding block on the screw rod is ensured to be consistent with the moving speed of the sliding block in the axial direction of the winding drum when the steel wire rope of the crane is placed down or wound up.
Preferably, annular fixing plates are arranged on the inner walls of the two ends of the winding drum, the periphery of each fixing plate is fixed with the winding drum, and the fixing plate on one side of the winding drum is fixed with the inner gear ring of the planetary gear reducer; the center of the fixing plate at the other side of the winding drum is provided with the central shaft. The inner walls at the two ends of the winding drum are provided with the annular fixing plates, so that the stability of the winding drum during rotation can be improved.
Preferably, the pulley is arranged on one side below the winding drum, a notch corresponding to the pulley is arranged on one side of the lower part of the fixing plate, a stop lever parallel to the transverse shaft is arranged on the sliding block, and the stop lever is positioned on the lower side of the pulley. The stop lever can limit the position of the steel wire rope on the pulley and prevent the steel wire rope from falling off.
Preferably, the outer wall of the winding drum is provided with a spiral groove, and the steel wire rope of the crane is wound in the spiral groove of the winding drum in a single layer. The utility model discloses a wire rope sets up for the individual layer, and every rotation round of reel like this, the wire rope below of correspondence or the length of curling up the part are the same, can the height of the object that the accurate control loop wheel machine hung, improve control accuracy.
Preferably, the length of a single turn of the steel cord in the helical groove is an integer value. The integral value is a numerical value which is beneficial to counting of a controller and can improve the lifting precision of the steel wire rope; for example, the length of a single circle of the steel wire rope in the spiral groove is an integer of one meter, and the like, so that the winding drum rotates for one circle, the length of the corresponding part below or the winding part of the steel wire rope is one meter, and high-precision control over winding and unwinding of the steel wire rope is facilitated.
The utility model has the advantages that: it has solved the large volume of the stage loop wheel machine among the prior art effectively, is difficult for arranging and removing, and the wire rope of loop wheel machine receive and releases the control accuracy low, influences the problem of stage artistic effect, the utility model discloses a built-in loop wheel machine is used to the stage has small, and the high advantage of control accuracy has very high practical value.
Drawings
Fig. 1 is a schematic structural view of the built-in stage crane of the present invention;
FIG. 2 is a view from A-A of FIG. 1;
fig. 3 is another schematic structural diagram of the built-in stage crane of the present invention;
FIG. 4 is a left side view of FIG. 1;
FIG. 5 is a right side view of FIG. 1;
FIG. 6 is a view from the C-C of FIG. 1;
fig. 7 is a view from B-B of fig. 2.
In the figure: 1. the rope winding device comprises a winding drum, 2 servo motors, 3 inner gear rings, 4 central shafts, 5 planet carriers, 6 sun gears, 7 rope arrangers, 8 lead screws, 9 transmission mechanisms, 10 sliding blocks, 11 pulleys, 12 supporting plates, 13 pull rods, 14 speed reducers, 15 guide rods, 16 sun gear wheel shafts, 17 driving wheels, 18 driven wheels, 19 synchronous belts, 20 fixed plates, 21 notches, 22 retaining rods, 23 spiral grooves and 24 planet gears.
Detailed Description
The following provides a further description of embodiments of the present invention with reference to the accompanying drawings.
Example 1
In embodiment 1 as shown in fig. 1, 2 and 3, the built-in crane for the stage comprises a support and a winding drum 1 which is rotatably arranged on the support, wherein the winding drum is of a hollow structure, a planetary gear reducer and a servo motor 2 are arranged in the winding drum, the planetary gear reducer comprises an inner gear ring 3, a planet gear 24 and a sun gear 6 (shown in fig. 7), the inner gear ring is fixed with one end of the winding drum, the other end of the winding drum is connected to the support through a central shaft 4, the support comprises support plates 12 arranged at two ends of the winding drum and a pull rod 13 connected between the support plates, one end of the winding drum is fixed to the support plate at one side through the planetary gear reducer, and the other end of the winding drum is connected. The outer wall of the winding drum is provided with a spiral groove 23, a steel wire rope of the crane is wound in the spiral groove of the winding drum in a single-layer mode, and the length of a single circle of the steel wire rope in the spiral groove is an integral value of one meter. Annular fixing plates 20 are arranged on the inner walls of the two ends of the winding drum, the periphery of each fixing plate is fixed with the winding drum, and the fixing plate on one side of the winding drum is fixed with an inner gear ring of the planetary gear reducer; the center of the fixing plate at the other side of the winding drum is provided with the central shaft.
The outer side of the planet carrier 5 of the planetary gear reducer is fixed with the supporting plate, the servo motor is positioned at the inner side (the side close to the center of the winding drum) of the planetary gear reducer, a reducer 14 is arranged between the planetary gear reducer and the servo motor, the reducer of the embodiment is a planetary gear reducer, the reducer shell is fixed on the planet carrier at the inner side of the planetary gear reducer, and the output shaft of the reducer is coaxial with the sun gear of the planetary gear reducer; the shell of the servo motor is fixed on the speed reducer, and the output shaft of the servo motor is connected with the input end of the speed reducer.
The rope guider 7 is further arranged below the winding drum and comprises a lead screw 8 parallel to the axis of the winding drum and a guide mechanism, one end of the lead screw is connected with the sun gear through a transmission mechanism 9, the lead screw is connected with a sliding block 10 in a threaded mode, a pulley 11 is arranged on the sliding block, and a wheel shaft of the pulley is perpendicular to the lead screw. The guide mechanism comprises two guide rods 15 (shown in figure 6) symmetrically arranged on two sides of the screw rod, corresponding guide holes are formed in the sliding block, and the guide rods penetrate through the guide holes. The pulley is arranged on one side below the winding drum, a notch 21 (see fig. 4 and 5) corresponding to the pulley is arranged on one side of the lower part of the fixing plate, a stop lever 22 parallel to the transverse shaft is arranged on the sliding block, and the stop lever is positioned on the lower side of the pulley. The transmission mechanism comprises a driving wheel 17 arranged on a sun wheel shaft 16 of the planetary gear reducer, a driven wheel 18 is arranged at the end part of the screw rod, the driving wheel and the driven wheel are synchronous belt wheels, the driving wheel and the driven wheel are in transmission connection through a synchronous belt 19, and an outer cover is arranged on the transmission mechanism.
The utility model discloses a built-in loop wheel machine is used to stage includes the support and rotationally sets up the reel on the support, and is arranged in drive reel pivoted motor setting and is used for the planetary gear reduction unit of speed reduction all to set up in the reel, has just so avoided reel and motor series connection setting among the prior art, and the ascending length of reel axial is very long, and the hoist is bulky, is difficult for arranging and the problem of removal. And the rope arranger arranged below the winding drum can put down or wind up the steel wire ropes on the winding drum in sequence, so that the precise lifting of the hung object is ensured. When the motor rotates, the sun wheel drives the screw rod to rotate, so that the moving speed of the sliding block on the screw rod is consistent with the moving speed of the sliding block in the axial direction of the winding drum when the steel wire rope of the crane is placed down or wound up. Furthermore, the utility model discloses a servo motor is as driving motor, through the controller, can carry out accurate control to the rotation of reel to receive and release realization accurate control to wire rope.
In addition to the above embodiments, the technical features or technical data of the present invention can be selected and combined again within the scope disclosed in the claims and the specification of the present invention to constitute new embodiments, which can be realized by those skilled in the art without creative efforts, and therefore, the embodiments of the present invention not described in detail should be regarded as specific embodiments of the present invention and within the protection scope of the present invention.
Claims (8)
1. A built-in crane for a stage comprises a support and a winding drum which is rotatably arranged on the support, and is characterized in that the winding drum (1) is of a hollow structure, a planetary gear reducer and a servo motor (2) are arranged in the winding drum, an inner gear ring (3) of the planetary gear reducer is fixed with one end of the winding drum, the other end of the winding drum is connected to the support through a central shaft (4), one side of a planet carrier (5) of the planetary gear reducer is fixed with the support, the servo motor is connected to the other side of the planet carrier, an output shaft of the servo motor is in transmission connection with a sun gear (6) of the planetary gear reducer, a rope arranger (7) is further arranged below the winding drum and comprises a lead screw (8) and a guide mechanism which are parallel to the axis of the winding drum, one end of the lead screw is connected with the sun gear through a transmission mechanism (9), and a, the sliding block is provided with a pulley (11), and the wheel shaft of the pulley is vertical to the screw rod.
2. The stage built-in crane according to claim 1, wherein the support includes support plates (12) provided at both ends of the drum and a pull rod (13) connected between the support plates, one end of the drum is fixed to the support plate at one side through a planetary gear reducer, and the other end of the drum is connected to the support plate at the other side through a center shaft.
3. The stage built-in crane according to claim 1, wherein a reducer (14) is arranged between the planetary gear reducer and the servo motor, the reducer is fixed on a planet carrier of the planetary gear reducer, and an output shaft of the reducer is in transmission connection with a sun gear of the planetary gear reducer; the servo motor is fixed on the speed reducer, and an output shaft of the servo motor is connected with an input end of the speed reducer.
4. The stage built-in crane according to claim 1, wherein the guide mechanism comprises two guide rods (15) symmetrically arranged on both sides of the screw rod, the slide block is provided with corresponding guide holes, and the guide rods are arranged in the guide holes in a penetrating manner.
5. The stage built-in crane according to claim 1, wherein the transmission mechanism comprises a driving wheel (17) arranged on a sun wheel shaft (16) of the planetary gear reducer, a driven wheel (18) is arranged at the end of the screw rod, the driving wheel and the driven wheel are synchronous belt wheels, the driving wheel and the driven wheel are in transmission connection through a synchronous belt (19), and the transmission mechanism is provided with an outer cover.
6. The stage built-in crane according to claim 1, wherein the inner walls of the two ends of the winding drum are provided with annular fixing plates (20), the periphery of each fixing plate is fixed with the winding drum, and the fixing plate on one side of the winding drum is fixed with the inner gear ring of the planetary gear reducer; the center of the fixing plate at the other side of the winding drum is provided with the central shaft.
7. The stage built-in crane according to claim 6, wherein the pulley is disposed at a side below the drum, a notch (21) corresponding to the pulley is disposed at a lower side of the fixing plate, a stop lever (22) parallel to the horizontal shaft is disposed on the slider, and the stop lever is disposed at a lower side of the pulley.
8. A stage built-in crane according to any one of claims 1-7, wherein the outer wall of the drum is provided with a spiral groove (23), and the steel wire rope of the crane is wound in the spiral groove of the drum in a single layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921350615.1U CN210795603U (en) | 2019-08-19 | 2019-08-19 | Built-in crane for stage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921350615.1U CN210795603U (en) | 2019-08-19 | 2019-08-19 | Built-in crane for stage |
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| Publication Number | Publication Date |
|---|---|
| CN210795603U true CN210795603U (en) | 2020-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921350615.1U Active CN210795603U (en) | 2019-08-19 | 2019-08-19 | Built-in crane for stage |
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| CN (1) | CN210795603U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115215242A (en) * | 2022-09-19 | 2022-10-21 | 杭州未名信科科技有限公司 | Winch gradient brake power system of intelligent tower crane and intelligent tower crane |
-
2019
- 2019-08-19 CN CN201921350615.1U patent/CN210795603U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115215242A (en) * | 2022-09-19 | 2022-10-21 | 杭州未名信科科技有限公司 | Winch gradient brake power system of intelligent tower crane and intelligent tower crane |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240920 Address after: No. 383 Baihe Road, Xiangshan County Industrial Demonstration Park, Ningbo City, Zhejiang Province 315700 Patentee after: Federated Industries (Ningbo), Ltd. Country or region after: China Address before: Room 522, building 2, Zuojiazhuang Beili, Chaoyang District, Beijing 100020 Patentee before: Beijing Oriental stage Technology Co.,Ltd. Country or region before: China |
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| TR01 | Transfer of patent right |