A composite driving device for moving and lifting curved screen

Abstract

The utility model discloses a composite driving device for the walking and lifting of an arc-shaped screen; the composite driving device comprises: a bearing frame and a power output member, the two ends of the power output member are respectively connected to a left lifting composite mechanism and a right lifting composite mechanism, the left lifting composite mechanism comprises a driving wheel assembly, a left drum assembly, a horizontal redirecting pulley assembly and a lower rope redirecting pulley assembly, the driving wheel assembly is used to drive the bearing frame to move, the left drum assembly is provided with a first lifting rope and a second lifting rope, and the output end drives the left drum assembly to rotate so as to retract / release the first lifting rope and the second lifting rope. The utility model achieves the function of lifting while rotating by symmetrically arranging a left lifting composite mechanism and a right lifting composite mechanism of the same structural type on both sides of the bearing frame, and in addition, the left lifting composite mechanism and the right lifting composite mechanism are both provided with two output ropes to form four independent lifting steel wire ropes, which can improve the stability and operation safety of the hanging props.

Description

Technical Field

[0001] The utility model relates to the technical field of stage mechanical equipment, in particular to a walking and lifting composite driving device for an arc-shaped screen. Background Art

[0002] In many cases, stage theater performances are equipped with a wire mechanism that moves in a straight line and a single-point suspension mechanism that moves up and down. Generally speaking, this type of mechanism runs along a straight track, combined with a vertical lifting motion scheme, and the suspended props are nothing more than regular rectangles or symmetrical bodies, or actors. If you want to hang an irregular large-sized arc-shaped prop that needs both rotation and vertical lifting motion, then the above two types of mechanisms are powerless and cannot meet the use requirements. Utility Model Content

[0003] The utility model aims to overcome the shortcomings of the prior art and provide a walking and lifting composite driving device for an arc-shaped screen.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] The utility model provides a composite driving device for the walking and lifting of an arc-shaped screen, comprising: a load-bearing frame, a power output member arranged at the middle position of the load-bearing frame, output ends are arranged at both ends of the power output member, and the output ends at both ends are respectively connected to a left lifting composite mechanism and a right lifting composite mechanism in a transmission manner, the left lifting composite mechanism and the right lifting composite mechanism have the same structure and are symmetrically arranged, the left lifting composite mechanism comprises a driving wheel assembly, a left winding drum assembly, a horizontal redirecting pulley assembly and a lower rope redirecting pulley assembly, the driving wheel assembly is installed on the load-bearing frame, and is used to drive the load-bearing frame The frame moves, the left drum assembly is transmission-connected to the output end, the left drum assembly is provided with a first lifting rope and a second lifting rope, the output end drives the left drum assembly to rotate so as to retract / release the first lifting rope and the second lifting rope, the first lifting rope is arranged to the right along the horizontal redirecting pulley assembly and the lower rope redirecting pulley assembly so that the first lifting rope extends downward on the right side of the load-bearing frame, and the second lifting rope is arranged to the left along the horizontal redirecting pulley assembly and the lower rope redirecting pulley assembly so that the second lifting rope extends downward on the left side of the load-bearing frame.

[0006] In a specific embodiment, the driving wheel assembly includes a driving wheel bearing seat, a driven bevel gear, a driving wheel shaft, a driving wheel, a driving bevel gear, a reducer mounting seat, a planetary reducer and a servo motor. The reducer mounting seat and the driving wheel bearing seat are fixedly connected to the supporting frame, the planetary reducer is connected to the reducer mounting seat, one end of the planetary reducer is drivingly connected to the servo motor, and the other end is drivingly connected to the driving bevel gear, the driven bevel gear is meshed with the driving bevel gear at a right angle, and the driven bevel gear is sleeved on the driving wheel shaft, the driving wheel shaft passes through two symmetrically arranged driving wheel bearing seats, and is connected to the driving wheel.

[0007] In a specific embodiment, the left-side reel assembly includes a reel support, a left-side reel bearing seat, a left guide rope member, a reel, a right guide rope member, a right-side reel bearing seat, a guide shaft, a left-right rotational ball screw, a first toothed synchronous belt pulley, a second toothed synchronous belt pulley and a toothed synchronous belt, the reel support is fixed to the carrying frame, and the left-side reel bearing seat and the right-side reel bearing seat are respectively provided at both ends of the reel support, the reel, the left-right rotational ball screw and the guide shaft are connected to the left-side reel bearing seat and the right-side reel bearing seat, one end of the reel is transmission-connected to the output end, and the other end is connected to the first toothed synchronous belt pulley, the left-right rotational ball screw is connected to the second toothed synchronous belt pulley, the first toothed synchronous belt pulley and the second The toothed synchronous belt pulley is connected through the toothed synchronous belt transmission, the left guide rope member and the right guide rope member are hingedly fixed to the guide shaft by means of a sliding pair, and the lead screw nut fixed between the left guide rope member and the right guide rope member cooperates with the left and right rotating ball screws to form a spiral pair meshing and hinged connection, the drum is provided with the first lifting rope and the second lifting rope, the first lifting rope is led out along the right guide rope member to the horizontal redirection pulley assembly and the lower rope redirection pulley assembly and arranged to the right, so that the first lifting rope extends downward on the right side of the load-bearing frame, the second lifting rope is led out along the left guide rope member to the horizontal redirection pulley assembly and the lower rope redirection pulley assembly and arranged to the left, so that the second lifting rope extends downward on the left side of the load-bearing frame.

[0008] In a specific embodiment, the number of the guide shafts is two, and the two guide shafts are arranged in parallel up and down, and the left-right rotating ball screw is located between the two guide shafts.

[0009] In a specific embodiment, a universal coupling is further provided between the reel and the output end.

[0010] In a specific embodiment, two ends of the support frame are connected to driven wheel groups, and a guide wheel group is further provided below the driven wheel group.

[0011] In a specific embodiment, the bearing frame is further provided with a driven wheel set between the left reel assembly and the output end.

[0012] In a specific embodiment, the load-bearing frame is further provided with a power supply assembly at the left end of the driving wheel assembly.

[0013] In a specific embodiment, the power output member is a servo reduction motor.

[0014] In a specific embodiment, the load-bearing frame is arc-shaped.

[0015] The curved screen walking and lifting composite drive device of the utility model has the following beneficial effects compared with the prior art: the left lifting composite mechanism and the right lifting composite mechanism which are symmetrically arranged on both sides of the load-bearing frame and have the same structural type can achieve the function of lifting and rotating at the same time; in addition, the left lifting composite mechanism and the right lifting composite mechanism are both equipped with two outgoing ropes to form four independent lifting steel wire ropes, which can improve the stability and operation safety of the hanging props and ensure that the probability of safety accidents occurring during the performance is minimized.

[0016] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 A schematic top view of the curved screen walking and lifting composite driving device provided by the utility model;

[0019] Figure 2 A schematic diagram of the front view of the curved screen walking and lifting composite driving device provided by the utility model;

[0020] Figure 3 A schematic diagram of the rope output of the curved screen walking and lifting composite driving device provided by the utility model;

[0021] Figure 4 A schematic diagram of the structure of the driving wheel assembly provided by the utility model;

[0022] Figure 5 This is a structural schematic diagram of the left reel assembly provided by the utility model. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0029] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms should not be understood as necessarily being directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0030] See also Figures 1 to 5 The specific embodiment shown in the utility model discloses a curved screen walking lifting compound driving device, comprising: a load-bearing frame 10, a power output member 20 arranged at the middle position of the load-bearing frame 10, both ends of the power output member 20 are provided with output ends, and the output ends at both ends are respectively connected to a left lifting compound mechanism and a right lifting compound mechanism in a transmission manner, the left lifting compound mechanism and the right lifting compound mechanism have the same structure and are symmetrically arranged, the left lifting compound mechanism comprises a driving wheel assembly 30, a left winding drum assembly 40, a horizontal redirecting pulley assembly 50 and a lower rope redirecting pulley assembly 60, the driving wheel assembly 30 is installed on the load-bearing frame 10, and is used to drive the load-bearing frame 10 to move The left drum assembly 40 is transmission-connected to the output end, and the left drum assembly 40 is provided with a first lifting rope 70 and a second lifting rope 80. The output end drives the left drum assembly 40 to rotate so as to retract / release the first lifting rope 70 and the second lifting rope 80. The first lifting rope 70 is arranged to the right along the horizontal redirection pulley assembly 50 and the lower rope redirection pulley assembly 60 so that the first lifting rope 70 extends downward on the right side of the load-bearing frame 10. The second lifting rope 80 is arranged to the left along the horizontal redirection pulley assembly 50 and the lower rope redirection pulley assembly 60 so that the second lifting rope 80 extends downward on the left side of the load-bearing frame 10.

[0031] Specifically, the load-bearing frame 10 is based on the power output member 20, and the area on the left side of the power output member 20 is the left side of the load-bearing frame 10; the area on the right side of the power output member 20 is the right side of the load-bearing frame 10. The power output member 20, the driving wheel assembly 30, the left drum assembly 40, the horizontal redirecting pulley assembly 50 and the lower rope redirecting pulley assembly 60 are all installed on the upper surface of the load-bearing frame 10.

[0032] Specifically, the supporting frame 10 is arc-shaped, and the power output part 20 is a servo reduction motor. The output shaft directions of the output ends at both ends are along the arc tangent direction of the supporting frame 10, and the two output shaft directions are opposite to drive the left lifting compound mechanism and the right lifting compound mechanism to move simultaneously.

[0033] Specifically, one driving wheel assembly 30 is arranged and fixedly connected to a position near the left side of the left winding drum assembly 40; and the other driving wheel assembly 30 is arranged and fixedly connected to a position near the right side of the right winding drum assembly. In addition to supporting the composite driving device, the two driving wheel assemblies 30 also realize a one-pull-one-push motion mode under the control of the control system to drive the supporting frame 10 to rotate smoothly in the circular track.

[0034] See also Figure 3 As shown, specifically, a plurality of horizontal redirection pulley assemblies 50 and a lower rope redirection pulley assembly 60 are provided on the load-bearing frame 10; the output end drives the left drum assembly 40 to rotate, so that the first lifting rope 70 and the second lifting rope 80 are retracted / released, and the first lifting rope 70 is arranged to the right along the horizontal redirection pulley assembly 50 and the lower rope redirection pulley assembly 60, so that the first lifting rope 70 extends downward on the right side of the load-bearing frame 10 (i.e., the lower right rope position 1), and the second lifting rope 80 is arranged along the horizontal redirection pulley assembly 50 and the lower rope redirection pulley assembly 60 is arranged to the left, so that the second lifting rope 80 extends downward on the left side of the load-bearing frame 10 (i.e., the lower left rope position 2), that is, through the left lifting compound mechanism and the right lifting compound mechanism symmetrically arranged on both sides of the load-bearing frame 10 and having the same structure, the function of lifting and rotating while running can be achieved. In addition, the left lifting compound mechanism and the right lifting compound mechanism are both equipped with two outgoing ropes to form four independent lifting steel wire ropes, which can improve the stability and operation safety of the hanging props and ensure that the probability of safety accidents during the performance is minimized.

[0035] See also Figure 1 , Figure 2 and Figure 4As shown, in one embodiment, the driving wheel assembly 30 includes a driving wheel bearing seat 31, a driven bevel gear 32, a driving wheel shaft 33, a driving wheel 34, a driving bevel gear 35, a reducer mounting seat 36, a planetary reducer 37 and a servo motor 38. The reducer mounting seat 36 and the driving wheel bearing seat 31 are fixedly connected to the supporting frame 10, the planetary reducer 37 is connected to the reducer mounting seat 36, one end of the planetary reducer 37 is drivingly connected to the servo motor 38, and the other end is drivingly connected to the driving bevel gear 35, the driven bevel gear 32 is meshed with the driving bevel gear 35 at a right angle, and the driven bevel gear 32 is sleeved on the driving wheel shaft 33, the driving wheel shaft 33 passes through two symmetrically arranged driving wheel bearing seats 31, and is connected to the driving wheel 34.

[0036] Specifically, a driving wheel shaft 33 passes through two symmetrically arranged driving wheel bearing seats 31 and is hingedly connected. A driving wheel 34 is fixedly installed at each end of the driving wheel shaft 33. The driven bevel gear 32 is fixedly connected to the middle position of the driving wheel shaft 33. The side of the reducer mounting seat 36 is fixedly connected to the planetary reducer 37, and the other end face of the planetary reducer 37 is fixedly connected to the servo motor 38. The output shaft of the planetary reducer 37 is fixedly connected to a driving bevel gear 35. The driving bevel gear 35 is meshed and connected with the driven bevel gear 32 at a right angle. The driving wheel bearing seat 31 and the reducer mounting seat 36 are fixedly connected to the upper top surface of the supporting frame 10. Among them, the power and speed of the servo motor 38 are enhanced and reduced by the planetary reducer 37, and then transmitted to the driving wheel 34 through the meshing bevel gear pair. The rotational motion of the driving wheel 34 is converted into a linear motion that drives the supporting frame 10 to translate forward through the friction force of the tread.

[0037] See also Figures 1 to 3 and Figure 5As shown, in one embodiment, the left drum assembly 40 includes a drum support 41, a left drum bearing seat 42, a left guide rope member 43, a drum 44, a right guide rope member 45, a right drum bearing seat 46, a guide shaft 47, a left and right rotational ball screw 48, a first toothed synchronous belt pulley 49, a second toothed synchronous belt pulley and a toothed synchronous belt. The drum support 41 is fixed to the carrying frame 10, and the left and right drum bearing seat 42 and the right drum bearing seat 46 are respectively provided at both ends of the drum support 41. The drum 44, the left and right rotational ball screw 48 and the guide shaft 47 are connected to the left and right drum bearing seat 42 and the right drum bearing seat 46. One end of the drum 44 is transmission-connected to the output end, and the other end is connected to the first toothed synchronous belt pulley 49. The left and right rotational ball screw 48 is connected to the second toothed synchronous belt pulley. The first toothed synchronous belt pulley 49 and the The second toothed synchronous belt pulley is connected through the toothed synchronous belt transmission, the left guide rope member 43 and the right guide rope member 45 are hingedly fixed to the guide shaft 47 by means of a sliding pair, and the screw nut fixed between the left guide rope member 43 and the right guide rope member 45 cooperates with the left and right rotating ball screws 48 to form a spiral pair meshing hinge, the drum 44 is provided with the first lifting rope 70 and the second lifting rope 80, the first lifting rope 70 is led out along the right guide rope member 45 to the horizontal redirection pulley assembly 50 and the lower rope redirection pulley assembly 60 and arranged to the right, so that the first lifting rope 70 extends downward on the right side of the load-bearing frame 10, the second lifting rope 80 is led out along the left guide rope member 43 to the horizontal redirection pulley assembly 50 and the lower rope redirection pulley assembly 60 and arranged to the left, so that the second lifting rope 80 extends downward on the left side of the load-bearing frame 10.

[0038] Specifically, the bottom surface of the reel bracket 41 is connected and fixed to the upper top surface of the carrying frame 10 by fasteners, and the left reel bearing seat 42 and the right reel bearing seat 46 are fixedly connected on both sides of the upper surface of the reel bracket 41, and a reel 44 is installed at the middle and rear position of the two bearing seats. The length of the half-axes on both sides of the reel 44 is slightly longer than the outer width of the two bearing seats. The half-axes pass through the holes of the bearing seats and are hingedly connected thereto. The first toothed synchronous pulley 49 is fixedly connected to the tail end of the left half-axle of the reel 44, and two upper and lower parallel guide shafts 47 are arranged in front of the reel 44. The two ends of the guide shaft 47 are respectively fixedly connected to the left reel bearing seat 42 and the right reel bearing seat 46, and its function is to be used for guiding. A left-right rotating ball screw 48 is arranged between two upper and lower parallel guide shafts 47, and its two ends are hingedly connected to the bearing seats on both sides. After the left part of the left-right rotating ball screw 48 is hingedly passed through the left drum bearing seat 42, the tail end is fixedly connected with a second toothed synchronous pulley. The left guide rope member 43 and the right guide rope member 45 are hingedly fixed on the two parallel guide shafts 47 by means of a sliding pair, and the screw nut fixed in the middle of the guide rope member cooperates with the left-right rotating ball screw 48 to form a spiral pair meshing hinge. The function of the left-right rotating ball screw 48 is to convert the rotational motion into the linear motion of the guide rope member; a toothed synchronous belt is arranged and connected between the first toothed synchronous pulley 49 fixed on the tail end of the left half-shaft of the drum 44 and the second toothed synchronous pulley fixedly connected to the left tail end of the left-right rotating ball screw 48. The toothed synchronous belt can transmit the rotational motion of the drum 44 to the left-right rotating ball screw 48.

[0039] Specifically, a universal coupling 90 is further provided between the drum 44 and the output end, one end of the universal coupling 90 is connected to the output end, and the other end is connected to the drum 44, so as to transmit the rotational motion of the servo reduction motor to the driving shaft of the drum 44. When the drum 44 is driven by the universal coupling 90 to rotate and retract / release the first lifting rope 70 and the second lifting rope 80, the left and right rotational ball screws 48 drive the left guide rope member 43 and the right guide rope member 45 to move in opposite directions or in opposite directions at the same time, so that the lifting wire ropes (i.e., the first lifting rope 70 and the second lifting rope 80) can be evenly arranged on the circumferential surface of the drum 44 according to a certain proportional relationship.

[0040] Specifically, the left guide rope member 43 and the right guide rope member 45 are located on the front side of the drum 44, and the two upper and lower parallel guide shafts 47 play both a limiting and guiding role for the guide rope members (including the left guide rope member 43 and the right guide rope member 45). The redirecting pulley of the guide rope member is arranged and fixed on the upper part of the structure, and the center line position of the rope groove of the redirecting pulley basically coincides with the center position of the steel wire rope wound on the outer circumferential surface of the drum 44; when the drum 44 rotates, the lead screw nut drives the guide rope member to move horizontally along the axis of the drum in a certain proportional relationship, so that the lifting wire rope can be evenly arranged on the circumferential surface of the drum 44.

[0041] See also Figure 3 As shown, specifically, after the first lifting rope 70 is led out to the right from the redirection pulley of the right guide rope member 45 on the right side of the left drum assembly 40, it crosses the middle position of the load-bearing frame 10, passes through the horizontal redirection pulley assembly 50 near the servo reduction motor, and then passes through the lower rope redirection pulley assembly 60 near the right drum assembly, and then the steel wire rope extends vertically downward from the lower right rope position 1 to the bottom of the load-bearing frame 10. Similarly, after another first lifting rope 70 is led out to the left from the redirection pulley of the left guide rope member 43 on the left side of the right drum assembly, it crosses the middle position of the load-bearing frame 10, passes through the horizontal redirection pulley assembly 50 near the servo reduction motor, and then passes through the lower rope redirection pulley assembly 60 near the left drum assembly 40, and then the steel wire rope extends vertically downward from the lower left rope position 1 to the bottom of the load-bearing frame 10.

[0042] See also Figure 3 As shown, specifically, after the second lifting rope 80 is led out to the left from the left guide rope member 43 on the left side of the left drum assembly 40, it is redirected multiple times by passing through the multiple groups of horizontal redirection pulley assemblies 50 arranged along the arc on the left side, and then redirected by passing through the lower rope redirection pulley assembly 60 near the left end of the load-bearing frame 10, the steel wire rope extends vertically downward from the lower left rope position 2 to the bottom of the load-bearing frame 10. Similarly, after the other second lifting rope 80 is led out to the right from the right guide rope member 45 on the right side of the right drum assembly, it is redirected multiple times by passing through the multiple groups of horizontal redirection pulley assemblies 50 arranged along the arc on the right side, and then redirected by passing through the lower rope redirection pulley assembly 60 near the right end of the load-bearing frame 10, the steel wire rope extends vertically downward from the lower right rope position 2 to the bottom of the load-bearing frame 10.

[0043] At this point, four independently fixed and wound lifting steel ropes are lowered from the predetermined arc-shaped positions of the compound drive device, and can be fixedly connected to props such as the non-completely symmetrical arc-shaped curtain below, to realize the lifting and lowering movement and rotating circular motion of the suspended props; that is, through the clever arrangement of the four lifting steel ropes, the two steel ropes on the inner side of the center position of the compound drive device cross and exchange the lowering positions, while the steel ropes derived from the outside of the drum assembly extend outward to the predetermined lowering positions. This rope laying method can ensure that the two steel ropes of one of the drum assemblies can keep the suspended props below in a balanced state without causing a safety overturning or falling accident.

[0044] See also Figures 1 to 3 As shown, in one embodiment, two ends of the support frame 10 are connected to driven wheel assemblies 100 , and a guide wheel assembly 110 is further provided below the driven wheel assembly 100 .

[0045] Specifically, the driven wheel group 100 is installed on the upper surface of the load-bearing frame 10, and the horizontal roller part of the guide wheel group 110 is arranged on the lower surface of the load-bearing frame 10. A set of driven wheel groups 100 and a set of guide wheel groups 110 are arranged and fixedly connected to the middle and slightly left position of the load-bearing frame 10, and the guide wheel group 110 is installed and fixed directly below the driven wheel group 100. In addition, a set of driven wheel groups 100 and a set of guide wheel groups 110 are also arranged at the ends of both sides of the load-bearing frame 10, and their function is to support the load-bearing frame 10 so that the load-bearing frame 10 can rotate smoothly in the circular track. In addition, in order to enhance the rigidity of the load-bearing frame 10, a set of driven wheel groups 100 are added at an appropriate position between the left reel assembly 40 and the left end of the load-bearing frame 10, and at an appropriate position symmetrical to the power output member 20.

[0046] See also Figure 1 As shown, in one embodiment, the support frame 10 is further provided with a power supply assembly 120 at the left end of the driving wheel assembly 30, and the power supply assembly 120 is used to supply power from the busbar of the circular track to the composite drive device.

[0047] See also Figure 1 As shown, in one embodiment, an electric control box 130 is further provided on the carrier frame 10, and the electric control box 130 is used to control the operation of the compound drive device.

[0048] Specifically, the horizontal redirection pulley assembly 50 and the lower rope redirection pulley assembly 60 adopt the existing public technology, which will not be elaborated in detail here.

[0049] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A curved screen walking and lifting composite driving device, characterized in that: include: A load-bearing frame, a power output member arranged at the middle position of the load-bearing frame, output ends are arranged at both ends of the power output member, and the output ends at both ends are respectively connected to a left lifting compound mechanism and a right lifting compound mechanism in a transmission manner, the left lifting compound mechanism and the right lifting compound mechanism have the same structure and are symmetrically arranged, the left lifting compound mechanism comprises a driving wheel assembly, a left drum assembly, a horizontal redirection pulley assembly and a lower rope redirection pulley assembly, the driving wheel assembly is installed on the load-bearing frame and is used to drive the load-bearing frame to move, the left drum assembly is connected to the output end in a transmission manner, the left drum assembly is provided with a first lifting rope and a second lifting rope, the output end drives the left drum assembly to rotate so that the first lifting rope and the second lifting rope are retracted / released, the first lifting rope is arranged to the right along the horizontal redirection pulley assembly and the lower rope redirection pulley assembly so that the first lifting rope extends downward on the right side of the load-bearing frame, and the second lifting rope is arranged to the left along the horizontal redirection pulley assembly and the lower rope redirection pulley assembly so that the second lifting rope extends downward on the left side of the load-bearing frame.

2. The curved screen walking and lifting composite driving device according to claim 1 is characterized in that: The driving wheel assembly includes a driving wheel bearing seat, a driven bevel gear, a driving wheel shaft, a driving wheel, a driving bevel gear, a reducer mounting seat, a planetary reducer and a servo motor. The reducer mounting seat and the driving wheel bearing seat are fixedly connected to the supporting frame, the planetary reducer is connected to the reducer mounting seat, one end of the planetary reducer is drivingly connected to the servo motor, and the other end is drivingly connected to the driving bevel gear, the driven bevel gear is meshed with the driving bevel gear at a right angle, and the driven bevel gear is sleeved on the driving wheel shaft, the driving wheel shaft passes through two symmetrically arranged driving wheel bearing seats, and is connected to the driving wheel.

3. The arc screen walking and lifting composite driving device according to claim 1 is characterized in that: The left drum assembly includes a drum support, a left drum bearing seat, a left guide rope member, a drum, a right guide rope member, a right drum bearing seat, a guide shaft, a left and right rotational ball screw, a first toothed synchronous belt pulley, a second toothed synchronous belt pulley and a toothed synchronous belt, the drum support is fixed to the carrying frame, and the left and right drum bearing seat are respectively provided at both ends of the drum support, the drum, the left and right rotational ball screws and the guide shaft are connected to the left and right drum bearing seat, one end of the drum is transmission-connected to the output end, and the other end is connected to the first toothed synchronous belt pulley, the left and right rotational ball screws are connected to the second toothed synchronous belt pulley, the first toothed synchronous belt pulley and the second toothed synchronous belt The wheels are connected through the toothed synchronous belt transmission, the left guide rope member and the right guide rope member are hingedly fixed to the guide shaft by means of a sliding pair, and the screw nut fixed between the left guide rope member and the right guide rope member cooperates with the left and right rotating ball screws to form a spiral pair meshing and hinged connection, the drum is provided with the first lifting rope and the second lifting rope, the first lifting rope is led out along the right guide rope member to the horizontal redirection pulley assembly and the lower rope redirection pulley assembly and arranged to the right, so that the first lifting rope extends downward on the right side of the load-bearing frame, the second lifting rope is led out along the left guide rope member to the horizontal redirection pulley assembly and the lower rope redirection pulley assembly and arranged to the left, so that the second lifting rope extends downward on the left side of the load-bearing frame.

4. The arc screen walking and lifting composite driving device according to claim 3 is characterized in that: The number of the guide shafts is two, and the two guide shafts are arranged in parallel up and down, and the left-right rotating ball screw is located between the two guide shafts.

5. The arc screen walking and lifting composite driving device according to claim 3 is characterized in that: A universal coupling is also provided between the reel and the output end.

6. The arc screen walking and lifting composite driving device according to claim 1 is characterized in that: Both ends of the bearing frame are connected with driven wheel groups, and a guide wheel group is further arranged below the driven wheel group.

7. The arc screen walking and lifting composite driving device according to claim 6 is characterized in that: The bearing frame is located between the left reel assembly and the output end and is also provided with a driven wheel set.

8. The arc screen walking and lifting composite driving device according to claim 1 is characterized in that: The bearing frame is also provided with a power taking assembly at the left end of the driving wheel assembly.

9. The arc screen walking and lifting composite driving device according to claim 1 is characterized in that: The power output member is a servo reduction motor.

10. The arc screen walking and lifting composite driving device according to claim 1, characterized in that: The load-bearing frame is in an arc shape.

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