WO2021128620A1 - 一种利用齿轮驱动灯头旋转的舞台灯 - Google Patents

一种利用齿轮驱动灯头旋转的舞台灯 Download PDF

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Publication number
WO2021128620A1
WO2021128620A1 PCT/CN2020/081498 CN2020081498W WO2021128620A1 WO 2021128620 A1 WO2021128620 A1 WO 2021128620A1 CN 2020081498 W CN2020081498 W CN 2020081498W WO 2021128620 A1 WO2021128620 A1 WO 2021128620A1
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WO
WIPO (PCT)
Prior art keywords
wheel
gear
gears
drive
lamp holder
Prior art date
Application number
PCT/CN2020/081498
Other languages
English (en)
French (fr)
Inventor
蒋伟楷
Original Assignee
广州市浩洋电子股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 广州市浩洋电子股份有限公司 filed Critical 广州市浩洋电子股份有限公司
Priority to US17/271,993 priority Critical patent/US20210396376A1/en
Priority to EP20853591.4A priority patent/EP3862622A4/en
Publication of WO2021128620A1 publication Critical patent/WO2021128620A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/08—Lighting devices intended for fixed installation with a standard
    • F21S8/081—Lighting devices intended for fixed installation with a standard of low-built type, e.g. landscape light
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/14—Adjustable mountings
    • F21V21/30—Pivoted housings or frames
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S10/00—Lighting devices or systems producing a varying lighting effect
    • F21S10/007—Lighting devices or systems producing a varying lighting effect using rotating transparent or colored disks, e.g. gobo wheels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/02—Controlling the distribution of the light emitted by adjustment of elements by movement of light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/12—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by screwing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/14—Adjustable mountings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/14—Adjustable mountings
    • F21V21/15—Adjustable mountings specially adapted for power operation, e.g. by remote control
    • 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
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/17—Toothed wheels
    • F16H55/18—Special devices for taking up backlash
    • F16H2055/185—Special devices for taking up backlash using compound gears with coincident teeth of different material, e.g. laminated construction of metal and elastomeric gear layers, where elastic layer is slightly oversized
    • 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
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/17—Toothed wheels
    • F16H55/18—Special devices for taking up backlash
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/40—Lighting for industrial, commercial, recreational or military use
    • F21W2131/406—Lighting for industrial, commercial, recreational or military use for theatres, stages or film studios

Definitions

  • the present invention relates to the technical field of stage lights, and more specifically, to a stage light that uses gears to drive a lamp holder to rotate.
  • stage lights In the working process of stage lights, it is often necessary to rotate the lamp head to adjust the direction of the beam. Since the beams projected by stage lights are generally far away, even a slight error in the rotation angle of the lamp head will cause a large deviation in the final projection position.
  • the pivot shaft driving mechanism of the lamp holder of the existing stage lights is driven by the connection of the timing belt and the pivot shaft, and the rotation of the lamp cap is pulled through the timing belt.
  • the timing belt is generally made of rubber or plastic. In addition to the transmission function, it also needs to play the role of force, especially when the lamp is side-mounted, the timing belt is more stressed, which is likely to cause the timing belt to break, and the timing belt also has a certain elastic stretch due to the force. It will cause inaccurate scanning and positioning of the lamp and affect the stability of the product.
  • the present invention provides a stage light that uses gears to drive the lamp head to rotate, and directly adopts gear transmission to avoid elastic relaxation, so that the scanning system is more accurate, the effect is more stable, and the space occupation is less. smaller.
  • a stage lamp that uses gears to drive the lamp cap to rotate, including a lamp cap and a driving mechanism for driving the lamp cap to rotate, and a drive shaft of the driving mechanism and a pivot of the lamp cap
  • a transmission gear set for meshing transmission is provided between the connecting shafts.
  • the transmission gear set includes a first gear and a second gear.
  • the first gear includes a first wheel and a second wheel.
  • the gear teeth of and the gear teeth of the second wheel are misaligned with each other and mesh with the same second gear.
  • the stage light that uses gears to drive the lamp head to rotate is transmitted through the transmission gear set.
  • the first gear includes The first wheel, the second wheel, rotate the first wheel or the second wheel as needed, so that the teeth of the first wheel and the teeth of the second wheel are staggered with each other , Until the meshing accuracy of the first gear and the second gear reaches the most ideal state and then lock, so that the precise transmission of the transmission gear set can be realized, so that when the driving mechanism drives the lamp cap to rotate, the lamp cap
  • the rotation angle control is more precise, which improves the accuracy of the product.
  • the pivot shaft includes a first shaft and a second shaft
  • the lamp cap is pivotally connected to the support arm through the first shaft and rotates in a first direction
  • the support arm passes
  • the second shaft is pivotally connected to drive the lamp holder to rotate in a second direction, and at least one of the first shaft and the second shaft and the drive shaft of the drive mechanism are driven by the transmission gear set,
  • the lamp cap has two of the first shafts, and only one of them and the driving shaft of the driving mechanism are driven by the transmission gear set.
  • the driving mechanism connected with the first shaft is located in the support arm or in the lamp cap. Choose freely according to needs to free up the space inside the lamp cap or the support arm to facilitate installation of other components or heat dissipation.
  • the driving mechanism connected with the second shaft is located in the support arm. Make full use of the space inside the support arm.
  • the centers of the first wheel and the second wheel are pivotally connected to each other.
  • the first wheel and the second wheel will not slide and cause displacement, which is convenient for adjusting the gear teeth of the first wheel.
  • the misalignment angle of the gear teeth of the second wheel is convenient for adjusting the gear teeth of the first wheel.
  • the center of the first wheel is fixed with a fixed shaft
  • the center of the second wheel has a through hole
  • the second wheel is sleeved on the fixed shaft. The second wheel rotates around the fixed axis.
  • the misalignment angle of the first wheel and the second wheel is adjustable. In the working process of the stage light that uses gears to drive the lamp cap to rotate, if the first wheel and the second wheel of the first gear are worn or the misalignment angle changes, adjustment and correction can be performed again, Rotate the second wheel to maintain the most ideal misalignment angle of the first wheel and the second wheel to ensure the transmission accuracy of the transmission gear set.
  • the misalignment angle of the first wheel and the second wheel is adjustable, the second gear can be replaced at will, and the misalignment angle of the first wheel and the second wheel can be readjusted, In order to make the meshing accuracy of the first gear and the second gear reach the most ideal state.
  • the first gear further includes an adjusting member for adjusting the misalignment angle of the first wheel and the second wheel, and performs adjustment on the adjusted first wheel and the second wheel.
  • Locked locking piece The misalignment angle of the first wheel and the second wheel can be adjusted by the adjusting member, and the adjusted first wheel and the second wheel can be adjusted by the locking member. The locking is convenient to adjust the transmission accuracy of the transmission gear set during use.
  • the adjusting member includes an adjusting screw, a threaded hole provided on the first wheel and an adjusting hole provided on the second wheel, the adjusting screw includes a first screw and a first screw head, so The first screw is inserted into the threaded hole, the adjusting hole and connected with the threaded hole, the width of the adjusting hole is greater than the width of the first screw, and one side of the first screw is connected to the adjusting hole.
  • the side wall of the hole resists, and there is a movable gap between the other side and the side wall of the adjusting hole.
  • the first screw head pushes the second wheel to rotate, and the movable The gap increases or decreases accordingly.
  • the width of the adjustment hole is greater than the width of the first screw, and one side of the first screw head is against the side wall of the adjustment hole, and the other side is movable between the side wall of the adjustment hole. Therefore, when the adjusting screw is screwed, the screw head will push the first wheel to rotate, thereby changing the misalignment angle of the first wheel and the second wheel.
  • the part where the adjustment hole abuts against the first screw head and/or the part where the first screw head abuts against the adjustment hole is an inclined surface.
  • the inclined surface can be used to smoothly push the first wheel to rotate during the process of turning the adjusting screw.
  • the end of the first screw head and/or the adjusting hole away from the first wheel is in the shape of a truncated cone. It is easy to process, and in the process of screwing the adjusting screw, the part of the first screw head against the adjusting hole and/or the part of the adjusting hole against the first screw head is always It is an inclined surface and is easy to adjust.
  • the center lines of the threaded hole and the adjusting hole are staggered with each other. Since the threaded hole is threadedly connected with the first screw, and the width of the adjusting hole is greater than the width of the first screw, the width of the adjusting hole must be greater than the width of the threaded hole.
  • the center lines of the adjustment holes are staggered with each other, which can reduce the aperture diameter of the adjustment holes and make processing easier.
  • the locking member includes a locking hole penetrating the first wheel and the second wheel, and a locking screw inserted into the locking hole. After the misalignment angle of the first wheel and the second wheel is adjusted to the ideal position, the locking screw is inserted into the locking hole for locking, so as to prevent the second wheel from rotating randomly.
  • the locking hole includes a locking section located in the first wheel disc, and a through section located in the second wheel disc, and the locking screw includes a second screw and a second screw head,
  • the second screw rod is connected to the locking section and the width of the penetrating section is greater than the width of the second screw rod, and the second screw head abuts against the surface of the second wheel disc. Since the width of the penetrating section is greater than the width of the second screw, the second wheel can rotate relative to the first wheel, and the second screw is connected to the locking section. During the rotation of the first wheel, the position of the locking screw relative to the second wheel does not change. When the second screw head is against the surface of the second wheel, the The first wheel and the second wheel are locked to prevent the second wheel from rotating randomly.
  • the number of the locking members is at least two.
  • the first wheel and the second wheel are locked by at least two locking members.
  • the number of the locking member is 3, the number of the adjusting member is 1, and the locking member and the adjusting member are evenly distributed around the center of the first gear, and work together on the first wheel.
  • the disc and the second wheel disc are fixed, and the force is more balanced.
  • the drive shaft of the drive mechanism is parallel to the pivot shaft of the lamp cap. According to the size of the installation position of the drive mechanism, it is determined whether the drive mechanism is located on the side of the transmission gear set close to the pivot shaft or far away from the pivot shaft, as long as the drive shaft is connected to the pivot shaft.
  • the pivot shafts can be set in parallel and can be selected freely to arrange the space reasonably.
  • any two adjacent second gears are meshed and transmitted by the first gear, or any two adjacent first gears are meshed and transmitted by the second gear. That is, there will be no meshing transmission of two second gears, but at least one of the first gears in each step of transmission, so as to ensure that each step is precisely transmitted during the transmission process, thereby ensuring the overall transmission accuracy.
  • the diameter of the first gear is smaller than the diameter of the second gear. Due to the complex structure of the first gear, the diameter of the first gear is designed to be small, which facilitates production and assembly, and also facilitates adjustment of the misalignment angle of the first wheel and the second wheel.
  • the number of the first gear and the second gear is one each, the first gear is connected to the drive shaft of the driving mechanism, and the second gear is connected to the pivot of the lamp cap. Connect shaft connection. Connecting the first gear with a smaller diameter to the drive shaft, and connecting the second gear with a larger diameter to the pivot shaft of the lamp cap facilitates the conversion of gear ratios and reduces the impact on the motor Speed requirements.
  • Fig. 1 is a schematic diagram of the overall structure of a stage light using gears to drive the lamp cap to rotate in the present invention.
  • Figure 2 is a schematic diagram of the overall structure of the transmission gear set of the present invention.
  • Fig. 3 is a schematic diagram of an enlarged structure of part A in Fig. 2.
  • Fig. 4 is a schematic diagram of the exploded structure of the first gear of the present invention.
  • Fig. 5 is a schematic view of the front structure of the first gear of the present invention.
  • Fig. 6 is a schematic cross-sectional view of the present invention along the A-A direction in Fig. 5.
  • Fig. 7 is a schematic sectional view of the present invention along the direction B-B in Fig. 5.
  • the present invention provides a stage light that uses gears to drive a lamp cap to rotate, including a lamp cap 100 and a driving mechanism 400 that drives the lamp cap 100 to rotate.
  • the driving shaft 410 of the driving mechanism 400 and the lamp cap 100 A transmission gear set for meshing transmission is provided between the pivot shaft 110.
  • the transmission gear set includes a first gear 200 and a second gear 300.
  • the first gear 200 includes a first wheel 210 and a second wheel. 220, the gear teeth of the first wheel disc 210 and the gear teeth of the second wheel disc 220 are misaligned with each other and mesh with the same second gear 300.
  • the stage light that uses gears to drive the lamp head to rotate is driven by the transmission gear set. Compared with the use of a timing belt, it will not deform and cause inaccurate scanning positioning or breakage and damage, and the product performance is more stable; and the first gear 200 It includes a first wheel 210 and a second wheel 220.
  • the center lines of the first wheel 210 and the second wheel 220 coincide with each other, and the end surfaces are attached to each other.
  • the pivot shaft 110 includes a first shaft 111 and a second shaft 112
  • the lamp cap 100 is pivotally connected to the support arm through the first shaft 111 500 and rotate around the first direction
  • the support arm 500 is pivotally connected by the second shaft 112 to drive the lamp holder 100 to rotate in the second direction, at least one of the first shaft 111 and the second shaft 112
  • the transmission gear set is used for transmission with the driving shaft 410 of the driving mechanism 400 to improve the rotation accuracy and stability of the lamp holder 100 in the corresponding direction.
  • the lamp cap 100 has two first shafts 111, and only one of them and the driving shaft 410 of the driving mechanism 400 are driven by the transmission gear set.
  • the support arm 500 is pivotally connected to a bottom box 600 through a pivot shaft 110.
  • the driving mechanism 400 is a motor, preferably a servo motor.
  • the supporting arm 500 is provided with a supporting frame 510 to support the driving mechanism 400.
  • the driving mechanism 400 connected to the first shaft 111 is located in the supporting arm 500 or in the lamp holder 100. Choose freely according to needs to free up the space inside the lamp holder 100 or the support arm 500 to facilitate installation of other components or heat dissipation.
  • the driving mechanism 400 connected to the first shaft 111 is located in the lamp holder 100, the first shaft 111 is fixed, and the lamp holder 100 rotates around the first shaft 111, for example,
  • the second gear 300 is fixed to the first shaft 111
  • the first gear 200 is fixed to the driving shaft 410 of the driving mechanism 400
  • the driving mechanism 400 and the first gear 200 are both located in the Inside the lamp cap 100, the first gear 200 and the second gear 300 mesh with each other to drive the lamp cap 100 to rotate around the first shaft 111.
  • the driving mechanism 400 to which the second shaft 112 is connected is located in the support arm 500.
  • the space inside the bottom box 600 is freed to facilitate installation of other components or heat dissipation.
  • the second shaft 112 is fixed and the support arm 500 rotates around the second shaft 112.
  • the centers of the first wheel 210 and the second wheel 220 are pivotally connected to each other.
  • the first wheel 210 or the second wheel 220 is rotated, the first wheel 210 and the second wheel 220 will not slide and cause displacement, which is convenient for adjusting the first wheel
  • the misalignment angle of the gear teeth of the disc 210 and the gear teeth of the second disc 220 is convenient for adjusting the first wheel.
  • the center of the first wheel 210 is fixed with a fixed shaft 211
  • the center of the second wheel 220 has a through hole 221
  • the second wheel 220 is sleeved on the fixed shaft 211. ⁇ 211.
  • the second wheel 220 rotates around the fixed shaft 211.
  • the misalignment angle of the first wheel 210 and the second wheel 220 is adjustable.
  • the first wheel 210 and the second wheel 220 of the first gear 200 are worn out or the misalignment angle changes, it can be restarted.
  • Adjust and correct rotate the second wheel 220 to maintain the most ideal misalignment angle of the first wheel 210 and the second wheel 220, and ensure the transmission accuracy of the transmission gear set.
  • the misalignment angle of the first wheel 210 and the second wheel 220 can be adjusted, the second gear 300 can be replaced at will, and the first wheel 210 and the second wheel can be readjusted.
  • the misalignment angle of 220 makes the meshing accuracy of the first gear 200 and the second gear 300 reach the ideal state.
  • the first gear 200 further includes an adjusting member that adjusts the misalignment angle of the first wheel 210 and the second wheel 220, and adjusts the first wheel after adjustment.
  • the disc 210 and the second wheel disc 220 are locking members for locking.
  • the misalignment angle of the first wheel 210 and the second wheel 220 can be adjusted by the adjusting member, and the adjusted first wheel 210 and the second wheel can be adjusted by the locking member.
  • the second wheel disc 220 is locked to facilitate adjustment of the transmission accuracy of the transmission gear set during use.
  • the adjusting member includes an adjusting screw 230, a threaded hole 231 provided on the first wheel 210, and an adjusting hole 232 provided on the second wheel 220.
  • the adjusting screw 230 includes a first screw 2301 and a first screw head 2302.
  • the first screw 2301 is inserted into the threaded hole 231, the adjusting hole 232, and is connected to the threaded hole 231.
  • the width of the adjusting hole 232 is greater than that of the threaded hole 231.
  • the width of the first screw 2301, one side of the first screw head 2302 is against the side wall of the adjusting hole 232, and there is a movable gap 2321 between the other side and the side wall of the adjusting hole 232.
  • the first screw head 2302 pushes the second wheel 220 to rotate, and the movable gap 2321 increases or decreases accordingly. Since the first screw 2301 of the adjusting screw 230 is threadedly connected to the second wheel 220, when the adjusting screw 230 is screwed, the adjusting screw 230 is relative to the second wheel 220. The position of the adjusting hole 232 will not change, and the width of the adjusting hole 232 is greater than the width of the first screw 2301, and one side of the first screw head 2302 is against the side wall of the adjusting hole 232, and the other side is against the side wall of the adjusting hole 232.
  • the portion of the adjusting hole 232 that resists the first screw head 2302 and/or the portion of the first screw head 2302 that resists the adjusting hole 232 is an inclined surface.
  • the inclined surface can be used to push the first wheel 210 to rotate more smoothly when the adjusting screw 230 is screwed.
  • the part where the adjusting hole 232 abuts against the first screw head 2302 and the part where the first screw head 2302 and the adjusting hole 232 abut are both inclined surfaces.
  • the end of the first screw head 2302 and/or the adjusting hole 232 away from the first wheel disc 210 has a frustum shape. It is easy to process, and during the process of screwing the adjusting screw 230, the portion of the first screw head 2302 and the adjusting hole 232 and/or the adjusting hole 232 against the first screw head 2302
  • the holding part is always an inclined surface, which is easy to adjust.
  • the adjusting screw 230 is a flat head screw.
  • the center lines of the threaded hole 231 and the adjusting hole 232 are staggered from each other. Since the threaded hole 231 is threadedly connected with the first screw 2301, and the width of the adjusting hole 232 is greater than the width of the first screw 2301, the width of the adjusting hole 232 must be greater than the width of the threaded hole 231 The center lines of the threaded hole 231 and the adjusting hole 232 are staggered with each other, so that the opening diameter of the adjusting hole 232 can be reduced, and the processing is easier.
  • the locking member includes a locking hole 241 penetrating the first wheel 210 and the second wheel 220, and a locking screw 240 inserted into the locking hole 241 .
  • the locking screw 240 is inserted into the locking hole 241 for locking, so as to avoid the second roulette 220 Rotate freely.
  • the locking hole 241 includes a locking section 2411 located in the first wheel disc 210 and a through section 2412 located in the second wheel disc 220.
  • the locking The screw 240 includes a second screw 2401 and a second screw head 2402.
  • the second screw 2401 is connected to the locking section 2411 and the width of the penetrating section 2412 is greater than the width of the second screw 2401.
  • the screw head 2402 abuts the surface of the second wheel 220. Since the width of the penetrating section 2412 is greater than the width of the second screw 2401, the second wheel 220 can rotate relative to the first wheel 210, and the second screw 2401 is tightly connected to the lock Segment 2411 is connected.
  • the position of the locking screw 240 relative to the second wheel 220 does not change.
  • the second screw head 2402 resists the first wheel 220
  • the first wheel 210 and the second wheel 220 can be locked to prevent the second wheel 220 from rotating randomly.
  • the number of the locking members is at least two.
  • the first wheel 210 and the second wheel 220 are locked by at least two locking members.
  • the number of the locking member is 3, the number of the adjusting member is 1, and the locking member and the adjusting member are evenly distributed around the center of the first gear 200, The first wheel 210 and the second wheel 220 are fixed together, and the force is more balanced.
  • the driving shaft 410 of the driving mechanism 400 is parallel to the pivot shaft 110 of the lamp holder 100. According to the size of the installation position of the drive mechanism 400, it is determined whether the drive mechanism 400 is located on the side of the transmission gear set close to the pivot shaft 110 or far away from the pivot shaft 110, as long as the drive
  • the shaft 410 and the pivot shaft 110 are arranged in parallel and can be selected freely, so as to arrange the space reasonably.
  • any two adjacent second gears 300 are meshed and transmitted through the first gear 200, or any two adjacent first gears 200 are transmitted through the first gear.
  • the two gears 300 mesh for transmission. That is, there will be no meshing transmission of two second gears 300, but at least one of the first gears 200 in each step of transmission to ensure that each step is precisely transmitted during the transmission process, thereby ensuring the overall transmission Accuracy.
  • the diameter of the first gear 200 is smaller than the diameter of the second gear 300. Due to the complex structure of the first gear 200, the diameter of the first gear 200 is designed to be small, which facilitates production and assembly, and also facilitates adjustment of the misalignment of the first wheel 210 and the second wheel 220 angle.
  • the number of the first gear 200 and the number of the second gear 300 is one each, the first gear 200 is connected to the drive shaft 410 of the drive mechanism 400, and the The second gear 300 is connected with the pivot shaft 110 of the lamp holder 100. Connecting the first gear 200 with a smaller diameter to the drive shaft 410, and connecting the second gear 300 with a larger diameter to the pivot shaft 110 of the lamp holder 100 is beneficial to the conversion of gear ratios. Reduce the speed requirements of the motor.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

一种利用齿轮驱动灯头旋转的舞台灯，包括灯头（100）及驱动灯头（100）转动的驱动机构（400），驱动机构（400）的驱动轴（410）与灯头（100）的枢接轴（110）之间设有用于啮合传动的传动齿轮组，传动齿轮组包括第一齿轮（200）与第二齿轮（300），第一齿轮（200）包括第一轮盘（210）、第二轮盘（220），第一轮盘（210）的轮齿、第二轮盘（220）的轮齿相互错位，且与同一第二齿轮（300）啮合。通过传动齿轮组进行传动，不存在同步带变形导致扫描定位不准或断裂的问题；根据需要将第一轮盘（210）或第二轮盘（220）旋转，使第一轮盘（210）轮齿、第二轮盘（220）轮齿相互错开，直至第一齿轮（200）与第二齿轮（300）啮合精度达到最理想状态后锁定，从而实现传动齿轮组的精密传动，使驱动机构（400）驱动灯头（100）转动时，灯头（100）旋转角度控制更精准。

Description

一种利用齿轮驱动灯头旋转的舞台灯 技术领域
本发明涉及舞台灯技术领域，更具体地，涉及一种利用齿轮驱动灯头旋转的舞台灯。
背景技术
舞台灯在工作过程中，经常需要旋转灯头，调整光束射出方向。由于舞台灯投射的光束一般距离都较远，所以即使灯头旋转角度有轻微的误差，也会造成最终的投影位置偏差很大。现有舞台灯的灯头的枢接轴驱动机构都是通过同步带与枢接轴连接传动，并且通过同步带拉动灯头的旋转，同步带一般为橡胶或者塑料材质，这种传动过程中同步带除起到传动的功能外还需起到受力的作用，特别是灯具侧挂时同步带的受力更大，容易造成同步皮带断裂，且由于同步皮带受力也有一定的弹性拉伸，因此往往会造成灯具的扫描定位不准确，影响产品的稳定性。
发明内容
本发明为克服上述现有技术所述的至少一种缺陷，提供一种利用齿轮驱动灯头旋转的舞台灯，直接采用齿轮传动，避免弹性舒张，使得扫描系统更准确，效果更稳定，空间占用也更小。
为解决上述技术问题，本发明采用的技术方案是：一种利用齿轮驱动灯头旋转的舞台灯，包括灯头以及驱动所述灯头转动的驱动机构，所述驱动机构的驱动轴与所述灯头的枢接轴之间设有用于啮合传动的传动齿轮组，所述传动齿轮组包括第一齿轮与第二齿轮，所述第一齿轮包括第一轮盘、第二轮盘，所述第一轮盘的轮齿、所述第二轮盘的轮齿相互错位，且与同一所述第二齿轮啮合。
所述利用齿轮驱动灯头旋转的舞台灯通过所述传动齿轮组进行传动，相较于采用同步带，不会变形导致扫描定位不准确或者断裂损坏，产品性能更稳定；并且所述第一齿轮包括第一轮盘、第二轮盘，根据需要将所述第一轮盘或所述第二轮盘旋转，使所述第一轮盘的轮齿、所述第二轮盘的轮齿相互错开，直至所述第一齿轮与所述第二齿轮的啮合精度达到最理想状态后锁定，从而可以实现所述传动齿轮组的精密传动，使所述驱动机构驱动所述灯头转动时，所述灯头的旋转角度控制更为精准，提高产品的精准度。
进一步地，还包括支撑臂，所述枢接轴包括第一轴和第二轴，所述灯头通过所述第一轴 枢接于所述支撑臂并绕第一方向旋转，所述支撑臂通过所述第二轴枢接以带动所述灯头绕第二方向旋转，所述第一轴、所述第二轴中至少一个与所述驱动机构的驱动轴之间采用所述传动齿轮组传动，以提高所述灯头在对应方向上的旋转精度和稳定性。可选地，所述灯头具有两个所述第一轴，仅其中一个与所述驱动机构的驱动轴之间采用所述传动齿轮组传动。
进一步地，与所述第一轴连接的所述驱动机构位于所述支撑臂内或者位于所述灯头内。根据需要自由选择，腾出所述灯头或所述支撑臂内部的空间，便于安装其它元件或者散热。
进一步地，所述第二轴连接的所述驱动机构位于所述支撑臂内。充分利用所述支撑臂内部的空间。
进一步地，所述第一轮盘、所述第二轮盘的中心相互枢接。在旋转所述第一轮盘或所述第二轮盘时，所述第一轮盘、所述第二轮盘不会对滑动，造成移位，便于调整所述第一轮盘的轮齿、所述第二轮盘的轮齿的错位角度。
进一步地，所述第一轮盘的中心固定有固定轴，所述第二轮盘中心具有通孔，所述第二轮盘套设于所述固定轴。所述第二轮盘围绕所述固定轴转动。
进一步地，所述第一轮盘、所述第二轮盘的错位角度可调。在所述利用齿轮驱动灯头旋转的舞台灯工作过程中，如果所述第一齿轮的所述第一轮盘、所述第二轮盘发生磨损或者错位角度发生变化，则可以重新进行调节校正，旋转所述第二轮盘，以维持所述第一轮盘、所述第二轮盘最理想的错位角度，保障所述传动齿轮组的传动精度。另外，所述第一轮盘、所述第二轮盘的错位角度可调，可以随意更换所述第二齿轮，并重新调节所述第一轮盘、所述第二轮盘的错位角度，以使所述第一齿轮、所述第二齿轮的啮合精度达到最理想状态。
进一步地，所述第一齿轮还包括调节所述第一轮盘、所述第二轮盘的错位角度的调节件，以及对调节后的所述第一轮盘、所述第二轮盘进行锁紧的锁紧件。通过所述调节件可以对所述第一轮盘、所述第二轮盘的错位角度进行调节，通过所述锁紧件可以对调节后的所述第一轮盘、所述第二轮盘进行锁紧，便于在使用过程中对所述传动齿轮组的传动精度进行调节。
进一步地，所述调节件包括调节螺丝、设置于所述第一轮盘的螺纹孔以及设置于所述第二轮盘的调节孔，所述调节螺丝包括第一螺杆与第一螺头，所述第一螺杆插入所述螺纹孔、所述调节孔且与所述螺纹孔连接，所述调节孔的宽度大于所述第一螺杆的宽度，所述第一螺头的一侧与所述调节孔侧壁相抵持，另一侧与所述调节孔侧壁之间具有活动间隙，在所述调节螺丝转动的过程中，所述第一螺头推动所述第二轮盘转动，所述活动间隙随之增大或者减小。由于所述调节螺丝的所述第一螺杆是与所述第二轮盘螺纹连接的，所以拧动所述调节螺 丝时，所述调节螺丝相对于所述第二轮盘的位置不会变动，而所述调节孔的宽度大于所述第一螺杆的宽度，且所述第一螺头的一侧与所述调节孔侧壁相抵持，另一侧与所述调节孔侧壁之间具有活动间隙，所以拧动所述调节螺丝时，所述螺头会推动所述第一轮盘转动，从而改变所述第一轮盘、所述第二轮盘的错位角度。
进一步地，所述调节孔与所述第一螺头相抵持的部分及/或所述第一螺头与所述调节孔相抵持的部分为倾斜面。利用所述倾斜面可以在拧动所述调节螺丝的过程中，更平滑的推动所述第一轮盘转动。
进一步地，所述第一螺头及/或所述调节孔远离所述第一轮盘的一端呈锥台状。便于加工，且在所述调节螺丝拧动的过程中，所述第一螺头与所述调节孔相抵持的部分及/或所述调节孔与所述第一螺头相抵持的部分，始终为倾斜面，调节方便。
进一步地，所述螺纹孔与所述调节孔的中心线相互错开。由于所述螺纹孔与所述第一螺杆螺纹连接，所述调节孔的宽度大于所述第一螺杆的宽度，所以所述调节孔的宽度必定大于所述螺纹孔的宽度，所述螺纹孔与所述调节孔的中心线相互错开，可以减小所述调节孔的开孔孔径，加工起来更容易。
进一步地，所述锁紧件包括贯穿所述第一轮盘、所述第二轮盘的锁紧孔，以及插入所述锁紧孔的锁紧螺丝。所述第一轮盘、所述第二轮盘在错位角度调整到理想位置之后，通过所述锁紧螺丝插入所述锁紧孔进行锁死，避免所述第二轮盘任意转动。
进一步地，所述锁紧孔包括位于所述第一轮盘内的锁紧段，以及位于所述第二轮盘内的贯穿段，所述锁紧螺丝包括第二螺杆与第二螺头，所述第二螺杆与所述锁紧段连接且所述贯穿段的宽度大于所述第二螺杆的宽度，所述第二螺头抵持所述第二轮盘表面。由于所述贯穿段的宽度大于所述第二螺杆的宽度，所以所述第二轮盘可以相对于所述第一轮盘转动，而所述第二螺杆与所述锁紧段连接，在所述第一轮盘转动的过程中，所述锁紧螺丝相对于所述第二轮盘的位置不变，当所述第二螺头抵持所述第二轮盘表面时，即可将所述第一轮盘、所述第二轮盘锁死，避免所述第二轮盘任意转动。
进一步地，所述锁紧件的数量至少为2。所述第一轮盘、所述第二轮盘至少通过2个所述锁紧件锁死。
进一步地，所述锁紧件的数量为3，所述调节件的数量为1，所述锁紧件、所述调节件围绕所述第一齿轮的中心均匀分布，共同对所述第一轮盘、所述第二轮盘进行固定，受力更均衡。
进一步地，所述驱动机构的所述驱动轴与所述灯头的所述枢接轴平行。根据所述驱动机构安装位置的空间大小来确定所述驱动机构是位于所述传动齿轮组靠近所述枢接轴一侧，还是远离所述枢接轴一侧，只要所述驱动轴与所述枢接轴平行设置即可自由选择，以合理安排空间。
进一步地，任意相邻两个所述第二齿轮之间通过所述第一齿轮啮合传动，或者任意相邻两个所述第一齿轮之间通过所述第二齿轮啮合传动。即不会有两个所述第二齿轮啮合传动，而是每一步传动中都至少有一个所述第一齿轮，以保障传动的过程中，每一步都精密传动，从而保障整体的传动精度。
进一步地，所述第一齿轮的直径小于所述第二齿轮的直径。由于所述第一齿轮结构复杂，所以将所述第一齿轮的直径设计的较小，便于生产、组装，也便于调节所述第一轮盘、所述第二轮盘的错位角度。
进一步地，所述第一齿轮、所述第二齿轮的数量各为一个，所述第一齿轮与所述驱动机构的所述驱动轴连接，所述第二齿轮与所述灯头的所述枢接轴连接。将直径较小的所述第一齿轮与所述驱动轴连接，直径较大的所述第二齿轮与所述灯头的所述枢接轴连接，有利于齿轮比的转换，减小对电机的转速要求。
附图说明
图1是本发明利用齿轮驱动灯头旋转的舞台灯整体结构示意图。
图2是本发明传动齿轮组的整体结构示意图。
图3是图2中A部位的放大结构示意图。
图4是本发明第一齿轮的爆炸结构示意图。
图5是本发明第一齿轮的正面结构示意图。
图6是本发明沿图5中A-A方向的剖视结构示意图。
图7是本发明沿图5中B-B方向的剖视结构示意图。
图中：
100、灯头；110、枢接轴；111、第一轴；112、第二轴；200、第一齿轮；210、第一轮盘；211、固定轴；220、第二轮盘；221、通孔；230、调节螺丝；2301、第一螺杆；2302、第一螺头；231、螺纹孔；232、调节孔；2321、活动间隙；240、锁紧螺丝；2401、第二螺杆；2402、第二螺头；241、锁紧孔；2411、锁紧段；2412、贯穿段；300、第二齿轮；400、驱动 机构；410、驱动轴；500、支撑臂；510、支撑架；600、底箱。
具体实施方式
附图仅用于示例性说明，不能理解为对本专利的限制；为了更好说明本实施例，附图某些部件会有省略、放大或缩小，并不代表实际产品的尺寸；对于本领域技术人员来说，附图中某些公知结构及其说明可能省略是可以理解的。附图中描述位置关系仅用于示例性说明，不能理解为对本专利的限制。
如图1至图4，本发明提供一种利用齿轮驱动灯头旋转的舞台灯，包括灯头100以及驱动所述灯头100转动的驱动机构400，所述驱动机构400的驱动轴410与所述灯头100的枢接轴110之间设有用于啮合传动的传动齿轮组，所述传动齿轮组包括第一齿轮200与第二齿轮300，所述第一齿轮200包括第一轮盘210、第二轮盘220，所述第一轮盘210的轮齿、所述第二轮盘220的轮齿相互错位，且与同一所述第二齿轮300啮合。
所述利用齿轮驱动灯头旋转的舞台灯通过所述传动齿轮组进行传动，相较于采用同步带，不会变形导致扫描定位不准确或者断裂损坏，产品性能更稳定；并且所述第一齿轮200包括第一轮盘210、第二轮盘220，根据需要将所述第一轮盘210或所述第二轮盘220旋转，使所述第一轮盘210的轮齿、所述第二轮盘220的轮齿相互错开，直至所述第一齿轮200与所述第二齿轮300的啮合精度达到最理想状态后锁定，从而可以实现所述传动齿轮组的精密传动，使所述驱动机构400驱动所述灯头100转动时，所述灯头100的旋转角度控制更为精准，提高产品的精准度。
在本实施例中，所述第一轮盘210、所述第二轮盘220的中心线重合，且端面贴合。
需要说明的是，所述驱动机构400的驱动轴410与所述灯头100的枢接轴110之间，除了可以使用所述传动齿轮组进行传动之外，还可以增加其它传动机构一起进行传动，只要其它传动机构的传动精度足够即可，因此只要应用了所述传动齿轮组对所述灯头100进行驱动，都应当认为侵权了本专利的专利权。为了突出本发明的发明点，在本实施例中，所述驱动机构400的所述驱动轴410与所述灯头100的所述枢接轴110之间，仅采用所述传动齿轮组进行传动。
在本发明优选地实施例中，还包括支撑臂500，所述枢接轴110包括第一轴111和第二轴112，所述灯头100通过所述第一轴111枢接于所述支撑臂500并绕第一方向旋转，所述支撑臂500通过所述第二轴112枢接以带动所述灯头100绕第二方向旋转，所述第一轴111、 所述第二轴112中至少一个与所述驱动机构400的驱动轴410之间采用所述传动齿轮组传动，以提高所述灯头100在对应方向上的旋转精度和稳定性。可选地，所述灯头100具有两个所述第一轴111，仅其中一个与所述驱动机构400的驱动轴410之间采用所述传动齿轮组传动。在本实施例中，所述支撑臂500通过枢接轴110枢接于一底箱600。
可选地，所述驱动机构400为电机，优选地为伺服电机。所述支撑臂500设置有支撑架510以支撑所述驱动机构400。
在本发明优选地实施例中，与所述第一轴111连接的所述驱动机构400位于所述支撑臂500内或者位于所述灯头100内。根据需要自由选择，腾出所述灯头100或所述支撑臂500内部的空间，便于安装其它元件或者散热。
当与所述第一轴111连接的所述驱动机构400位于所述支撑臂500内时，所述第一轴111随所述灯头100一起转动，本实施例采用此方案。
当与所述第一轴111连接的所述驱动机构400位于所述灯头100内时，所述第一轴111固定不动，而所述灯头100绕所述第一轴111转动，例如将所述第二齿轮300固定于所述第一轴111，所述第一齿轮200固定于所述驱动机构400的所述驱动轴410，所述驱动机构400及所述第一齿轮200均位于所述灯头100内部，所述第一齿轮200与所述第二齿轮300相互啮合，即可驱动所述灯头100绕所述第一轴111转动。
在本发明优选地实施例中，所述第二轴112连接的所述驱动机构400位于所述支撑臂500内。腾出所述底箱600内部的空间，便于安装其它元件或者散热。此时所述第二轴112固定不动，而所述支撑臂500绕所述第二轴112转动。
如图4，在本发明优选地实施例中，所述第一轮盘210、所述第二轮盘220的中心相互枢接。在旋转所述第一轮盘210或所述第二轮盘220时，所述第一轮盘210、所述第二轮盘220不会对滑动，造成移位，便于调整所述第一轮盘210的轮齿、所述第二轮盘220的轮齿的错位角度。
在本发明优选地实施例中，所述第一轮盘210的中心固定有固定轴211，所述第二轮盘220中心具有通孔221，所述第二轮盘220套设于所述固定轴211。所述第二轮盘220围绕所述固定轴211转动。
如图4至图7，在本发明优选地实施例中，所述第一轮盘210、所述第二轮盘220的错位角度可调。在所述利用齿轮驱动灯头旋转的舞台灯工作过程中，如果所述第一齿轮200的所述第一轮盘210、所述第二轮盘220发生磨损或者错位角度发生变化，则可以重新进行调节 校正，旋转所述第二轮盘220，以维持所述第一轮盘210、所述第二轮盘220最理想的错位角度，保障所述传动齿轮组的传动精度。另外，所述第一轮盘210、所述第二轮盘220的错位角度可调，可以随意更换所述第二齿轮300，并重新调节所述第一轮盘210、所述第二轮盘220的错位角度，以使所述第一齿轮200、所述第二齿轮300的啮合精度达到最理想状态。
在本发明优选地实施例中，所述第一齿轮200还包括调节所述第一轮盘210、所述第二轮盘220的错位角度的调节件，以及对调节后的所述第一轮盘210、所述第二轮盘220进行锁紧的锁紧件。通过所述调节件可以对所述第一轮盘210、所述第二轮盘220的错位角度进行调节，通过所述锁紧件可以对调节后的所述第一轮盘210、所述第二轮盘220进行锁紧，便于在使用过程中对所述传动齿轮组的传动精度进行调节。所述调节件及所述锁紧件的结构可以有多种，只要可以顺利对所述第一轮盘210、所述第二轮盘220进行调节、锁紧即可。
在本发明优选地实施例中，所述调节件包括调节螺丝230、设置于所述第一轮盘210的螺纹孔231以及设置于所述第二轮盘220的调节孔232，所述调节螺丝230包括第一螺杆2301与第一螺头2302，所述第一螺杆2301插入所述螺纹孔231、所述调节孔232且与所述螺纹孔231连接，所述调节孔232的宽度大于所述第一螺杆2301的宽度，所述第一螺头2302的一侧与所述调节孔232侧壁相抵持，另一侧与所述调节孔232侧壁之间具有活动间隙2321，在所述调节螺丝230转动的过程中，所述第一螺头2302推动所述第二轮盘220转动，所述活动间隙2321随之增大或者减小。由于所述调节螺丝230的所述第一螺杆2301是与所述第二轮盘220螺纹连接的，所以拧动所述调节螺丝230时，所述调节螺丝230相对于所述第二轮盘220的位置不会变动，而所述调节孔232的宽度大于所述第一螺杆2301的宽度，且所述第一螺头2302的一侧与所述调节孔232侧壁相抵持，另一侧与所述调节孔232侧壁之间具有活动间隙2321，所以拧动所述调节螺丝230时，所述螺头会推动所述第一轮盘210转动，从而改变所述第一轮盘210、所述第二轮盘220的错位角度。
在本发明优选地实施例中，所述调节孔232与所述第一螺头2302相抵持的部分及/或所述第一螺头2302与所述调节孔232相抵持的部分为倾斜面。利用所述倾斜面可以在拧动所述调节螺丝230的过程中，更平滑的推动所述第一轮盘210转动。
优选地，在本实施例中，所述调节孔232与所述第一螺头2302相抵持的部分及所述第一螺头2302与所述调节孔232相抵持的部分均为倾斜面。
在本发明优选地实施例中，所述第一螺头2302及/或所述调节孔232远离所述第一轮盘210的一端呈锥台状。便于加工，且在所述调节螺丝230拧动的过程中，所述第一螺头2302 与所述调节孔232相抵持的部分及/或所述调节孔232与所述第一螺头2302相抵持的部分，始终为倾斜面，调节方便。
优选地，所述调节螺丝230为平头螺丝。
在本发明优选地实施例中，所述螺纹孔231与所述调节孔232的中心线相互错开。由于所述螺纹孔231与所述第一螺杆2301螺纹连接，所述调节孔232的宽度大于所述第一螺杆2301的宽度，所以所述调节孔232的宽度必定大于所述螺纹孔231的宽度，所述螺纹孔231与所述调节孔232的中心线相互错开，可以减小所述调节孔232的开孔孔径，加工起来更容易。
在本发明优选地实施例中，所述锁紧件包括贯穿所述第一轮盘210、所述第二轮盘220的锁紧孔241，以及插入所述锁紧孔241的锁紧螺丝240。所述第一轮盘210、所述第二轮盘220在错位角度调整到理想位置之后，通过所述锁紧螺丝240插入所述锁紧孔241进行锁死，避免所述第二轮盘220任意转动。
在本发明优选地实施例中，所述锁紧孔241包括位于所述第一轮盘210内的锁紧段2411，以及位于所述第二轮盘220内的贯穿段2412，所述锁紧螺丝240包括第二螺杆2401与第二螺头2402，所述第二螺杆2401与所述锁紧段2411连接且所述贯穿段2412的宽度大于所述第二螺杆2401的宽度，所述第二螺头2402抵持所述第二轮盘220表面。由于所述贯穿段2412的宽度大于所述第二螺杆2401的宽度，所以所述第二轮盘220可以相对于所述第一轮盘210转动，而所述第二螺杆2401与所述锁紧段2411连接，在所述第一轮盘210转动的过程中，所述锁紧螺丝240相对于所述第二轮盘220的位置不变，当所述第二螺头2402抵持所述第二轮盘220表面时，即可将所述第一轮盘210、所述第二轮盘220锁死，避免所述第二轮盘220任意转动。
在本发明优选地实施例中，所述锁紧件的数量至少为2。所述第一轮盘210、所述第二轮盘220至少通过2个所述锁紧件锁死。
在本发明优选地实施例中，所述锁紧件的数量为3，所述调节件的数量为1，所述锁紧件、所述调节件围绕所述第一齿轮200的中心均匀分布，共同对所述第一轮盘210、所述第二轮盘220进行固定，受力更均衡。
如图1，在本发明优选地实施例中，所述驱动机构400的所述驱动轴410与所述灯头100的所述枢接轴110平行。根据所述驱动机构400安装位置的空间大小来确定所述驱动机构400是位于所述传动齿轮组靠近所述枢接轴110一侧，还是远离所述枢接轴110一侧，只要所述 驱动轴410与所述枢接轴110平行设置即可自由选择，以合理安排空间。
在本发明优选地实施例中，任意相邻两个所述第二齿轮300之间通过所述第一齿轮200啮合传动，或者任意相邻两个所述第一齿轮200之间通过所述第二齿轮300啮合传动。即不会有两个所述第二齿轮300啮合传动，而是每一步传动中都至少有一个所述第一齿轮200，以保障传动的过程中，每一步都精密传动，从而保障整体的传动精度。
如图2、图3在本发明优选地实施例中，所述第一齿轮200的直径小于所述第二齿轮300的直径。由于所述第一齿轮200结构复杂，所以将所述第一齿轮200的直径设计的较小，便于生产、组装，也便于调节所述第一轮盘210、所述第二轮盘220的错位角度。
在本发明优选地实施例中，所述第一齿轮200、所述第二齿轮300的数量各为一个，所述第一齿轮200与所述驱动机构400的所述驱动轴410连接，所述第二齿轮300与所述灯头100的所述枢接轴110连接。将直径较小的所述第一齿轮200与所述驱动轴410连接，直径较大的所述第二齿轮300与所述灯头100的所述枢接轴110连接，有利于齿轮比的转换，减小对电机的转速要求。
显然，本发明的上述实施例仅仅是为了清楚地说明本发明所作的举例，而并非是对本发明的实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明权利要求的保护范围之内。

Claims (20)

  1. 一种利用齿轮驱动灯头旋转的舞台灯，其特征在于，包括灯头(100)以及驱动所述灯头(100)转动的驱动机构(400)，所述驱动机构(400)的驱动轴(410)与所述灯头(100)的枢接轴(110)之间设有用于啮合传动的传动齿轮组，所述传动齿轮组包括第一齿轮(200)与第二齿轮(300)，所述第一齿轮(200)包括第一轮盘(210)、第二轮盘(220)，所述第一轮盘(210)的轮齿、所述第二轮盘(220)的轮齿相互错位，且与同一所述第二齿轮(300)啮合。
  2. 根据权利要求1所述的利用齿轮驱动灯头旋转的舞台灯，其特征在于，还包括支撑臂(500)，所述枢接轴(110)包括第一轴(111)和第二轴(112)，所述灯头(100)通过所述第一轴(111)枢接于所述支撑臂(500)并绕第一方向旋转，所述支撑臂(500)通过所述第二轴(112)枢接以带动所述灯头(100)绕第二方向旋转，所述第一轴(111)、所述第二轴(112)中至少一个与所述驱动机构(400)的驱动轴(410)之间采用所述传动齿轮组传动。
  3. 根据权利要求2所述的利用齿轮驱动灯头旋转的舞台灯，其特征在于，与所述第一轴(111)连接的所述驱动机构(400)位于所述支撑臂(500)内或者位于所述灯头(100)内。
  4. 根据权利要求2所述的利用齿轮驱动灯头旋转的舞台灯，其特征在于，所述第二轴(112)连接的所述驱动机构(400)位于所述支撑臂(500)内。
  5. 根据权利要求1所述的利用齿轮驱动灯头旋转的舞台灯，其特征在于，所述第一轮盘(210)、所述第二轮盘(220)的中心相互枢接。
  6. 根据权利要求5所述的利用齿轮驱动灯头旋转的舞台灯，其特征在于，所述第一轮盘(210)的中心固定有固定轴(211)，所述第二轮盘(220)中心具有通孔(221)，所述第二轮盘(220)套设于所述固定轴(211)。
  7. 根据权利要求1所述的利用齿轮驱动灯头旋转的舞台灯，其特征在于，所述第一轮盘(210)、所述第二轮盘(220)的错位角度可调。
  8. 根据权利要求7所述的利用齿轮驱动灯头旋转的舞台灯，其特征在于，所述第一齿轮(200)还包括调节所述第一轮盘(210)、所述第二轮盘(220)的错位角度的调节件，以及对调节后的所述第一轮盘(210)、所述第二轮盘(220)进行锁紧的锁紧件。
  9. 根据权利要求8所述的利用齿轮驱动灯头旋转的舞台灯，其特征在于，所述调节件包括调节螺丝(230)、设置于所述第一轮盘(210)的螺纹孔(231)以及设置于所述第二轮盘(220)的调节孔(232)，所述调节螺丝(230)包括第一螺杆(2301)与第一螺头(2302)，所述第一螺杆(2301)插入所述螺纹孔(231)、所述调节孔(232)且与所述螺纹孔(231) 连接，所述调节孔(232)的宽度大于所述第一螺杆(2301)的宽度，所述第一螺头(2302)的一侧与所述调节孔(232)侧壁相抵持，另一侧与所述调节孔(232)侧壁之间具有活动间隙(2321)，在所述调节螺丝(230)转动的过程中，所述第一螺头(2302)推动所述第二轮盘(220)转动，所述活动间隙(2321)随之增大或者减小。
  10. 根据权利要求9所述的利用齿轮驱动灯头旋转的舞台灯，其特征在于，所述调节孔(232)与所述第一螺头(2302)相抵持的部分及/或所述第一螺头(2302)与所述调节孔(232)相抵持的部分为倾斜面。
  11. 根据权利要求10所述的利用齿轮驱动灯头旋转的舞台灯，其特征在于，所述第一螺头(2302)及/或所述调节孔(232)远离所述第一轮盘(210)的一端呈锥台状。
  12. 根据权利要求9所述的利用齿轮驱动灯头旋转的舞台灯，其特征在于，所述螺纹孔(231)与所述调节孔(232)的中心线相互错开。
  13. 根据权利要求8所述的利用齿轮驱动灯头旋转的舞台灯，其特征在于，所述锁紧件包括贯穿所述第一轮盘(210)、所述第二轮盘(220)的锁紧孔(241)，以及插入所述锁紧孔(241)的锁紧螺丝(240)。
  14. 根据权利要求13所述的利用齿轮驱动灯头旋转的舞台灯，其特征在于，所述锁紧孔(241)包括位于所述第一轮盘(210)内的锁紧段(2411)，以及位于所述第二轮盘(220)内的贯穿段(2412)，所述锁紧螺丝(240)包括第二螺杆(2401)与第二螺头(2402)，所述第二螺杆(2401)与所述锁紧段(2411)连接且所述贯穿段(2412)的宽度大于所述第二螺杆(2401)的宽度，所述第二螺头(2402)抵持所述第二轮盘(220)表面。。
  15. 根据权利要求8所述的利用齿轮驱动灯头旋转的舞台灯，其特征在于，所述锁紧件的数量至少为2。
  16. 根据权利要求15所述的利用齿轮驱动灯头旋转的舞台灯，其特征在于，所述锁紧件的数量为3，所述调节件的数量为1，所述锁紧件、所述调节件围绕所述第一齿轮(200)的中心均匀分布。
  17. 根据权利要求1所述的利用齿轮驱动灯头旋转的舞台灯，其特征在于，所述驱动机构(400)的所述驱动轴(410)与所述灯头(100)的所述枢接轴(110)平行。
  18. 根据权利要求1所述的利用齿轮驱动灯头旋转的舞台灯，其特征在于，任意相邻两个所述第二齿轮(300)之间通过所述第一齿轮(200)啮合传动，或者任意相邻两个所述第一齿轮(200)之间通过所述第二齿轮(300)啮合传动。
  19. 根据权利要求1所述的利用齿轮驱动灯头旋转的舞台灯，其特征在于，所述第一齿轮(200)的直径小于所述第二齿轮(300)的直径。
  20. 根据权利要求19所述的利用齿轮驱动灯头旋转的舞台灯，其特征在于，所述第一齿轮(200)、所述第二齿轮(300)的数量各为一个，所述第一齿轮(200)与所述驱动机构(400)的所述驱动轴(410)连接，所述第二齿轮(300)与所述灯头(100)的所述枢接轴(110)连接。
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