CN219549509U - An Elastic Tensioning Mechanism for Improving the Lifespan of a Timing Belt and a Stage Light - Google Patents

Abstract

The utility model discloses an elastic tensioning mechanism for prolonging the service life of a synchronous belt and a stage lamp, which comprise a mounting plate, a motor assembly, a driven belt pulley assembly and a tensioning adjusting assembly, wherein the motor assembly can move relative to the mounting plate, the motor assembly is connected with the driven belt pulley assembly through the synchronous belt, the tensioning adjusting assembly comprises a tensioning part and an eccentric adjusting shaft, the tensioning part comprises a tensioning push plate, a tensioning supporting plate and an elastic part, the eccentric adjusting shaft is eccentrically arranged between the tensioning push plate and the tensioning supporting plate, and the elastic part is arranged between the tensioning supporting plate and the motor assembly and provides tensioning force for the synchronous belt. The damping deformation of the elastic component can absorb the transient impact caused by huge acceleration, thereby reducing the negative effect of transient overload on the synchronous belt, avoiding the reduction of the service life of the synchronous belt caused by the transient rigid impact for many times and improving the service life of the synchronous belt.

Description

An Elastic Tensioning Mechanism for Improving the Lifespan of a Timing Belt and a Stage Light

technical field

The utility model relates to the field of stage lamps, in particular to an elastic tension mechanism and a stage lamp for improving the service life of a synchronous belt.

Background technique

The shaking head movement of the stage moving head lamp is generally composed of the arm driving the lamp body, making forward and reverse rotation around the rotation axis of the lamp, and the combination of the forward and reverse rotation of the lamp body around the rotation axis of the lamp body. The rotation axis of the lamp is commonly known as X Axis, lamp head rotation axis commonly known as Y axis. The Y-axis of the lamp is generally erected on the bearing seat of the lamp arm, and is divided into two parts, left and right, connected to the lamp body. Usually, one side is set as the transmission side, and the synchronous pulley on the Y-axis of the lamp is driven by the motor and the synchronous belt, and it rotates forward and reverse around the Y-axis rotation center on the arm to drive the lamp head to rotate. In order to ensure the precise rotation and accurate positioning of the lamp head, the Y-axis synchronous belt is generally designed with a predetermined tension force to fix the center distance. For example, the tension spring is used to set the tension force, and then the center distance of the motor and the pulley is locked with screws. The advantage of this design is that it is more cost-effective. However, when the light fixture requires the lamp head to perform high-speed forward and reverse rotation, emergency stop and other actions, the impact brought by the huge acceleration will accelerate the wear and aging of the synchronous belt, and even break in a short time, thus reducing the service life of the synchronous belt. .

Utility model content

The utility model aims at at least solving one of the technical problems existing in the prior art. For this reason, the utility model proposes an elastic tensioning mechanism with high efficiency, uniform load distribution and stable output to improve the service life of the synchronous belt.

The utility model also proposes a stage lamp with the above-mentioned elastic tensioning mechanism for improving the service life of the synchronous belt.

According to the embodiment of the first aspect of the utility model, an elastic tensioning mechanism for improving the service life of the synchronous belt includes

mounting plate;

a motor assembly, the motor assembly is arranged on the mounting plate, and the motor assembly can move relative to the mounting plate;

a driven pulley assembly, the driven pulley assembly and the motor assembly are respectively arranged at both ends of the mounting plate, and the motor assembly and the driven pulley assembly are connected by a timing belt;

A tension adjustment assembly, the tension adjustment assembly is arranged on the mounting plate, the tension adjustment assembly includes a tension member and an eccentric adjustment shaft, and the tension member includes a tension push plate, a tension support plate and An elastic component, the eccentric adjustment shaft is eccentrically arranged between the tension push plate and the tension pallet, and the elastic component is arranged between the tension pallet and the motor assembly, so as to control the motor Adjust the degree of tightness between the assembly and the driven pulley assembly.

According to the embodiment of the first aspect of the utility model, an elastic tensioning mechanism for improving the life of the synchronous belt has at least the following beneficial effects: the elastic tensioning mechanism for improving the life of the synchronous belt of the utility model includes a mounting plate, a motor assembly, from The driving pulley assembly and the tension adjustment assembly, the motor assembly can move relative to the mounting plate, the motor assembly and the driven pulley assembly are connected by a synchronous belt, the tension adjustment assembly includes a tension component and an eccentric adjustment shaft, and the tension component includes The tension push plate, the tension support plate and the elastic part, the eccentric adjustment shaft is eccentrically arranged between the tension push plate and the tension support plate, and the elastic part is arranged between the tension support plate and the motor assembly, providing tension for the synchronous belt tension. When the lamp head moves at a constant speed or with a small acceleration, the tension force provided by the elastic member can ensure that the synchronous belt can stably transmit the torque required for the rotation of the lamp head. When it is necessary to control the lamp head to change direction quickly or stop suddenly, the instantaneous impact brought by the huge acceleration will be absorbed by the damping deformation of the elastic component, so that the motor component rebounds in the direction of the driven pulley component, and the center of the two pulleys The distance is reduced, thereby reducing the negative effect of the instantaneous overload on the synchronous belt. When the instantaneous impact is eliminated, the elastic parts gradually release the deformation energy, and the center distance returns to normal. Timing belt life.

According to some embodiments of the present utility model, the motor assembly includes a motor, a driving pulley and a fixing plate, the motor is mounted on the fixing plate, the driving pulley is mounted on the motor, and the fixing plate A tensioning pressing plate is arranged on the top, the tensioning pressing plate abuts against the elastic component, a motor chute is arranged on the mounting plate, and the fixing plate is movably installed in the motor chute.

According to some embodiments of the present utility model, there are two tension adjustment assemblies, the two tension adjustment assemblies are respectively arranged on both sides of the installation plate, and both sides of the fixing plate are provided with The tensioning plate, the elastic member is arranged between the tensioning platen and the tensioning pallet.

According to some embodiments of the present utility model, the motor assembly further includes sliding pads and fixing screws, the motor chute is provided with four, and the fixing plate is installed on the four sliding pads and four fixing screws. Inside the four motor slide slots.

According to some embodiments of the present invention, the driven pulley assembly includes a shaft core, a driven pulley, a bearing and a bearing seat, the driven pulley is arranged on the shaft core, and the shaft core passes through the The bearing is mounted on the bearing seat.

According to some embodiments of the present utility model, the tension component further includes a tension base plate, the tension support plate and the tension push plate are arranged on the tension base plate, and the tension base plate is set on the installation On the plate, the tension base plate is movable relative to the mounting plate.

According to some embodiments of the present invention, the tensioning base plate is provided with a tensioning chute, the mounting plate is provided with a guide screw, and the tensioning chute is sleeved on the guide screw, so that the A tension base can slide on said mounting plate.

According to some embodiments of the present utility model, the eccentric adjustment shaft includes a rotating hole, an outer cylindrical surface, a square groove and a twisting groove, the rotating hole is set away from the axis of the eccentric adjusting shaft, and the twisting groove is set on top of the eccentric adjustment shaft.

According to some embodiments of the present utility model, the mounting plate is provided with a mounting hole, and a stop nut is provided in the square groove, and the eccentric adjustment shaft is rotatably mounted on the countersunk screw and the stop nut through cooperation. inside the mounting hole.

The stage lamp according to the embodiment of the second aspect of the utility model includes the above-mentioned elastic tensioning mechanism for improving the service life of the synchronous belt.

The stage light according to the embodiment of the second aspect of the utility model has at least the following beneficial effects: the stage light of the second aspect of the utility model uses the elastic tension mechanism of the first aspect to improve the service life of the synchronous belt, and provides The tension force can ensure that the synchronous belt can stably transmit the torque required for the rotation of the lamp head. The damping deformation of the elastic part can absorb the instantaneous impact brought by the huge acceleration, so that the motor assembly rebounds in the direction of the driven pulley assembly, and the center distance between the two pulleys is reduced, thereby reducing the negative impact of the instantaneous overload on the synchronous belt Function, to avoid repeated exposure to instantaneous rigid impact and lead to a decrease in the life of the synchronous belt, improve the life of the synchronous belt.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present utility model will become apparent and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 is a schematic structural view of a stage light according to an embodiment of the present invention;

Fig. 2 is a structural schematic diagram of an elastic tensioning mechanism for improving the service life of the synchronous belt according to an embodiment of the present invention;

Fig. 3 is a schematic diagram of the elastic tension state of the tension adjustment assembly shown in Fig. 2;

Fig. 4 is a schematic diagram of the tension-releasing state of the tension adjustment assembly shown in Fig. 2;

Fig. 5 is a sectional view of the tension adjustment assembly and the eccentric adjustment shaft shown in Fig. 2;

FIG. 6 is a schematic structural view of the eccentric adjustment shaft shown in FIG. 2 .

Detailed ways

Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model, but should not be construed as limiting the present utility model.

In the description of the present utility model, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, inside, outside, etc. indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings. The positional relationship is only for the convenience of describing the present utility model and simplifying the description, but does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present utility model.

In the description of the present utility model, several means one or more, and multiple means two or more. Greater than, less than, exceeding, etc. are understood as not including the original number, and above, below, within, etc. are understood as including the original number. If the description of the first and second is only for the purpose of distinguishing the technical features, it cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features relation.

In the description of the utility model, unless otherwise clearly defined, words such as setting, installation, connection, assembly, and cooperation should be understood in a broad sense, and those skilled in the art can reasonably determine the meaning of the above-mentioned words in the utility model in combination with the specific content of the technical solution. specific meaning in .

An elastic tensioning mechanism for improving the service life of the timing belt 500 according to the embodiment of the present invention will be described below with reference to FIGS. 1 to 6 .

An elastic tensioning mechanism for improving the service life of the synchronous belt 500 in the embodiment of the utility model, as shown in Figures 1 to 6, includes a mounting plate 100, a motor assembly 200, a driven pulley assembly 300 and a tension adjustment assembly 400, The motor assembly 200 is arranged on the mounting plate 100, the motor assembly 200 can move relative to the mounting plate 100, the driven pulley assembly 300 and the motor assembly 200 are respectively arranged at the two ends of the mounting plate 100, the motor assembly 200 and the driven pulley assembly 300 They are connected by a synchronous belt 500, and the motor assembly 200 drives the synchronous belt 500 to move, which can drive the driven pulley assembly 300 to move, thereby driving the lamp head 600 to move. The tension adjustment assembly 400 includes a tension member and an eccentric adjustment shaft 450. The tension member includes a tension push plate 410, a tension support plate 420 and an elastic member 430. The eccentric adjustment shaft 450 is eccentrically arranged on the tension push plate 410 and the tension Between the supporting plates 420, the elastic member 430 is arranged between the tensioning supporting plate 420 and the motor assembly 200, so as to adjust the tightness between the motor assembly 200 and the driven pulley assembly 300, specifically, the elastic member 430 is arranged Between the tension support plate 420 and the motor assembly 200, the eccentric adjustment shaft 450 is eccentrically arranged between the tension push plate 410 and the tension support plate 420, the rotation of the eccentric adjustment shaft 450 can generate thrust to the tension member, and the elastic member 430 presses down the motor assembly 200 to provide tension for the synchronous belt 500 . When the lamp head 600 moves at a constant speed or with a small acceleration, the tension provided by the elastic member 430 can ensure that the synchronous belt 500 can stably transmit the torque required for the rotation of the lamp head 600 . When it is necessary to control the lamp head 600 to quickly change direction or stop suddenly, the instantaneous impact brought by the huge acceleration will be absorbed by the damping deformation of the elastic member 430, so that the motor assembly 200 rebounds in the direction of the driven pulley assembly 300, two The center distance of the pulley is reduced, thereby reducing the negative effect of the instantaneous overload on the synchronous belt 500. When the instantaneous impact is eliminated, the elastic member 430 gradually releases the deformation energy, and the center distance returns to normal, which can avoid multiple instantaneous rigid impacts. The life of the timing belt 500 is reduced, and the life of the timing belt 500 is increased.

According to some embodiments of the present utility model, the motor assembly 200 includes a motor 210, a driving pulley 230 and a fixed plate 220, the motor 210 is installed on the fixed plate 220, the driving pulley 230 is installed on the motor 210, and the fixed plate 220 is provided with The tensioning pressing plate 240 abuts against the elastic member 430 , the motor sliding slot 110 is arranged on the mounting plate 100 , and the fixing plate 220 is movably installed in the motor sliding slot 110 . The motor assembly 200 is arranged on the mounting plate 100, specifically, the mounting plate 100 is provided with a motor chute 110, the fixed plate 220 is movably installed in the motor chute 110, the motor 210 is installed on the fixed plate 220, and on the fixed plate 220 A tensioning pressing plate 240 is provided, and the elastic member 430 is arranged between the tensioning pressing plate 240 and the tensioning supporting plate 420. The elastic member 430 presses down the tensioning pressing plate 240, and can drive the motor 210 and the fixing plate 220 to move relative to the mounting plate 100 , the distance between the motor assembly 200 and the driven pulley assembly 300 is adjusted, so as to adjust the tension.

According to some embodiments of the present utility model, there are two tension adjustment assemblies 400, and the two tension adjustment assemblies 400 are respectively arranged on both sides of the installation plate 100, and both sides of the fixed plate 220 are provided with tension pressure plates 240, The elastic member 430 is disposed between the tension platen 240 and the tension pallet 420 . The tension adjustment assembly 400 presses down the motor assembly 200 on both sides. When the tension adjustment assembly 400 adjusts the tension force of the motor assembly 200, the two sides of the motor assembly 200 can be kept balanced, and the synchronous belt 500 can be avoided multiple times on one side. The service life of the synchronous belt 500 is shortened due to instantaneous rigid impact, and the service life of the synchronous belt 500 is improved.

According to some embodiments of the present utility model, the motor assembly 200 also includes sliding pads 252 and fixing screws 251, the motor chute 110 is provided with four, and the fixing plate 220 is installed on the four sliding pads 252 and four fixing screws 251. Inside the motor chute 110. The motor 210 is installed on the fixed plate 220, and the fixed plate 220 is installed in the motor chute 110 of the mounting plate 100. Specifically, there are four motor chute 110, and a sliding pad 252 is arranged between the fixed plate 220 and the mounting plate 100. And the fixing screw 251, the fixing screw 251 passes through the motor chute 110 and the fixing plate 220 is installed on the mounting plate 100, so that the fixing plate 220 and the motor 210 on the fixing plate 220 can move relative to the mounting plate 100, so that the motor assembly 200 The distance from the driven pulley assembly 300 is adjusted so as to adjust the tension. It can be understood that a sliding pad 252 is further provided between the fixing plate 220 and the mounting plate 100 , and the sliding pad 252 can isolate and protect the friction between the fixing plate 220 and the mounting plate 100 .

According to some embodiments of the present utility model, the driven pulley assembly 300 includes a shaft core 310, a driven pulley 320, a bearing 330 and a bearing housing 340, the driven pulley 320 is arranged on the shaft core 310, and the shaft core 310 passes through the bearing 330 is installed on the bearing seat 340. The driven pulley 320 is fixed on the shaft core 310, the shaft core 310 is installed in the bearing seat 340 through the bearing 330, the driven pulley 320 and the shaft core 310 can rotate in the bearing seat 340 through the bearing 330, when the timing belt 500 Immediately afterwards, when the motor assembly 200 rotates, the synchronous belt 500 can transmit power to the driven pulley 320 , thereby pulling the shaft core 310 and the lamp head 600 to rotate.

According to some embodiments of the present utility model, the tensioning part further includes a tensioning base plate 440, the tensioning supporting plate 420 and the tensioning push plate 410 are arranged on the tensioning base plate 440, the tensioning base plate 440 is arranged on the mounting plate 100, and the The tight base 440 can move relative to the mounting board 100 . The tensioning part is arranged between the driven pulley assembly 300 and the motor assembly 200, and the tensioning part includes a tensioning base plate 440, a tensioning supporting plate 420 and a tensioning push plate 410, and the tensioning supporting plate 420 and the tensioning push plate 410 Set on the tension base plate 440, the tension base plate 440 can move relative to the mounting plate 100, the eccentric adjustment shaft 450 is eccentrically arranged between the tension push plate 410 and the tension support plate 420, the rotation of the eccentric adjustment shaft 450 can adjust the tension The component generates thrust, and the movable tensioning component can press down the motor assembly 200 to provide tension for the synchronous belt 500 . Specifically, in some embodiments, the tensioning base plate 440 is provided with a tensioning chute 441 , the mounting plate 100 is provided with a guide screw, and the tensioning chute 441 is sleeved on the guide screw, so that the tensioning base plate 440 can be Slide on the mounting plate 100.

According to some embodiments of the present utility model, the eccentric adjustment shaft 450 includes a rotating hole 451, an outer cylindrical surface, a square groove 452 and a twisting groove 453, the rotating hole 451 deviates from the axis of the eccentric adjusting shaft 450, and the twisting groove 453 is arranged The top of the eccentric adjustment shaft 450 . The eccentric adjustment shaft 450 is eccentrically arranged between the tension push plate 410 and the tension support plate 420, specifically, the eccentric adjustment shaft 450 is arranged between the tension push plate 410 and the tension support plate 420 with the rotation hole 451 as the center of rotation , because the rotating hole 451 is set eccentrically, the rotation of the eccentric adjustment shaft 450 will cause the outer cylindrical surface to press down the tension push plate 410 or lift up the tension supporting plate 420 to realize the adjustment of the tension force. The twist groove 453 is arranged on the top of the eccentric adjustment shaft 450, and the eccentric adjustment shaft 450 can be twisted through the twist groove 453, making the adjustment more convenient.

According to some embodiments of the present utility model, the mounting plate 100 is provided with a mounting hole, the square groove 452 is provided with a stop nut 455, and the eccentric adjustment shaft 450 is rotatably installed in the mounting hole through the cooperation of the countersunk screw 454 and the stop nut 455 Inside. The eccentric adjustment shaft 450 is arranged on the mounting plate 100, specifically, the mounting plate 100 is provided with a mounting hole, the side of the eccentric adjustment shaft 450 is provided with a square groove 452, and the square groove 452 is provided with a back nut 455, a countersunk screw 454 passes through the installation hole and cooperates with the stop nut 455 in the eccentric adjustment shaft 450, the eccentric adjustment shaft 450 is installed in the installation hole, the eccentric adjustment shaft 450 can rotate relative to the installation hole, so that the tension is adjusted.

The stage light according to the second embodiment of the present utility model includes the above-mentioned elastic tensioning mechanism for improving the service life of the synchronous belt 500 . The stage light of the second aspect of the utility model uses the elastic tension mechanism of the first aspect to improve the service life of the synchronous belt 500, and the tension provided by the elastic member 430 can ensure that the synchronous belt 500 can stably transmit the rotation of the lamp head 600. required torque. The damping deformation of the elastic member 430 can absorb the instantaneous impact brought by the huge acceleration, so that the motor assembly 200 rebounds in the direction of the driven pulley assembly 300, and the center distance between the two pulleys is reduced, thereby reducing the impact of the instantaneous overload on the synchronous belt 500 The negative effects brought about by this method can avoid the reduction of the service life of the synchronous belt 500 caused by multiple instantaneous rigid impacts, and improve the service life of the synchronous belt 500 .

The above embodiments of the utility model have been described in detail in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned embodiments. Make various changes.

Claims (10)

1. A kind of elastic tension mechanism that improves synchronous belt life-span, is characterized in that, comprises: mounting plate; a motor assembly, the motor assembly is arranged on the mounting plate, and the motor assembly can move relative to the mounting plate; a driven pulley assembly, the driven pulley assembly and the motor assembly are respectively arranged at both ends of the mounting plate, and the motor assembly and the driven pulley assembly are connected by a timing belt; A tension adjustment assembly, the tension adjustment assembly is arranged on the mounting plate, the tension adjustment assembly includes a tension member and an eccentric adjustment shaft, and the tension member includes a tension push plate, a tension support plate and An elastic component, the eccentric adjustment shaft is eccentrically arranged between the tension push plate and the tension pallet, and the elastic component is arranged between the tension pallet and the motor assembly, so as to control the motor Adjust the degree of tightness between the assembly and the driven pulley assembly. 2. A kind of elastic tensioning mechanism that improves synchronous belt life-span according to claim 1, is characterized in that, described motor assembly comprises motor, driving pulley and fixed plate, and described motor is installed on described fixed plate, The driving pulley is installed on the motor, the fixed plate is provided with a tensioning plate, the tensioning plate abuts against the elastic member, the mounting plate is provided with a motor chute, and the fixed plate It is movably installed in the motor chute. 3. An elastic tensioning mechanism for improving the service life of the synchronous belt according to claim 2, characterized in that there are two tension adjustment assemblies, and the two tension adjustment assemblies are respectively arranged on the mounting Both sides of the plate and both sides of the fixing plate are provided with the tensioning pressure plate, and the elastic member is arranged between the tensioning pressure plate and the tensioning supporting plate. 4. A kind of elastic tensioning mechanism that improves the service life of synchronous belt according to claim 2, it is characterized in that, described motor assembly also comprises sliding spacer and fixing screw, described motor chute is provided with four, and described fixing The board is installed in the four motor runners through the four sliding pads and the four fixing screws. 5. A kind of elastic tensioning mechanism that improves synchronous belt service life according to claim 1, is characterized in that, described driven pulley assembly comprises shaft core, driven pulley, bearing and bearing block, and described driven pulley The pulley is arranged on the shaft core, and the shaft core is installed on the bearing seat through the bearing. 6. An elastic tensioning mechanism for improving the service life of the synchronous belt according to claim 1, wherein the tensioning part further comprises a tensioning base plate, and the tensioning supporting plate and the tensioning push plate are arranged On the tension base plate, the tension base plate is arranged on the installation plate, and the tension base plate can move relative to the installation plate. 7. An elastic tensioning mechanism for improving the service life of the synchronous belt according to claim 6, wherein a tensioning chute is provided on the tensioning base plate, a guide screw is provided on the mounting plate, and the The tensioning chute is sleeved on the guide screw, so that the tensioning base plate can slide on the mounting plate. 8. An elastic tensioning mechanism for improving the service life of the synchronous belt according to claim 1, wherein the eccentric adjustment shaft includes a rotating hole, an outer cylindrical surface, a square groove and a twisting groove, and the rotating hole deviates from The axis center of the eccentric adjustment shaft is set, and the twist groove is set on the top of the eccentric adjustment shaft. 9. An elastic tensioning mechanism for improving the service life of the synchronous belt according to claim 8, characterized in that, the mounting plate is provided with a mounting hole, the square groove is provided with a stop nut, and the eccentric adjustment shaft It can be rotatably installed in the installation hole through the cooperation of the countersunk screw and the stop nut. 10. The stage light, characterized in that it comprises an elastic tensioning mechanism for improving the service life of the synchronous belt according to any one of claims 1 to 9.