Electrodeless rotating device and lamp

Abstract

The utility model discloses an electrodeless rotating device and a lamp, and is widely applied to the technical field of stage lamps. The stepless rotating device comprises a rotor assembly, a stator assembly and a rolling piece, the rotor assembly is provided with a first guide rail and used for being connected with a cutting assembly, the stator assembly and the center line of the rotor assembly are coaxially arranged, the stator assembly is provided with a second guide rail, and the second guide rail and the first guide rail define a rolling track; avoiding holes are formed in the centers of the stator assembly and the rotor assembly, and the rolling pieces are installed on the rolling rails, so that the rotor assembly and the stator assembly can rotate relatively. Therefore, the concentricity and the rotation flexibility of the optical axis can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of stage lamps, and in particular to a stepless rotating device and a lamp. Background Art

[0002] Stage lights usually switch different beam shapes through cutting systems to meet various stage effects, and focus the lamps through focusing lenses. Since the focusing lenses need to be close to the imaging hole when the lamps are in use, a clearance space for the focusing lenses needs to be reserved on the object side of the imaging hole. Therefore, currently, synchronous pulleys are usually set on the cutting components to drive the cutting components to rotate. However, since the synchronous belts are tensioned, the cutting components are easily offset to the driving wheel, resulting in problems such as optical axis eccentricity and rotation jamming. Utility Model Content

[0003] In order to solve at least one of the above-mentioned technical problems, the present application provides a stepless rotating device and a lamp, which can improve the concentricity and rotation flexibility of the optical axis.

[0004] According to an embodiment of the first aspect of the present application, a stepless rotating device is provided, comprising:

[0005] A rotor assembly, wherein the rotor assembly is provided with a first guide rail and the rotor assembly is used to connect with the cutting assembly;

[0006] A stator assembly, wherein the stator assembly is coaxially arranged with the center line of the rotor assembly, the stator assembly is provided with a second guide rail, the second guide rail is used to enclose with the first guide rail to form a rolling track, and the centers of the stator assembly and the rotor assembly are both provided with avoidance holes; and

[0007] A rolling element is installed on the rolling track so that the rotor assembly and the stator assembly can rotate relative to each other.

[0008] As an optional embodiment, in an embodiment of the first aspect of the present application, the rotor assembly includes a first rotor base and a second rotor base, the first rotor base and the second rotor base are detachably connected, the first rotor base and the second rotor base are enclosed to form the first guide rail, the cutting assembly is installed on the first rotor base, and the stator assembly includes a first stator base and a second stator base, the first stator base and the second stator base are detachably connected, and the first stator base and the second stator base are enclosed to form the second guide rail.

[0009] As an optional embodiment, in an embodiment of the first aspect of the present application, the first rotor base is provided with a first arc groove, the second rotor base is provided with a second arc groove, the first arc groove and the second arc groove are combined to form the first guide rail, the first stator base is provided with a third arc groove, the second stator base is provided with a fourth arc groove, the third arc groove and the fourth arc groove are combined to form the second guide rail, the first arc groove, the second arc groove, the third arc groove and the fourth arc groove are all quarter arc grooves, and the first arc groove, the second arc groove, the fourth arc groove and the third arc groove are arranged in sequence and enclosed to form the rolling track.

[0010] As an optional embodiment, in an embodiment of the first aspect of the present application, the stepless rotation device also includes a gear plate, which is detachably connected to the second stator base, and the gear plate is coaxially arranged with the center line of the second stator base, the first stator base is fixedly mounted on a fixed frame, the cutting assembly includes a cutting body, a driving member and a rotating gear, the cutting body is mounted on the first rotor base, the output end of the driving member is connected to the rotating gear, and the gear plate is used to mesh with the rotating gear.

[0011] As an optional implementation, in an embodiment of the first aspect of the present application, the gear plate is detachably connected to a side of the second stator base away from the first stator base.

[0012] As an optional implementation, in an embodiment of the first aspect of the present application, the second rotor base extends in an axial direction away from the first rotor base, and a side of the second rotor base away from the first rotor base is provided with an air duct opening connected to the avoidance hole.

[0013] As an optional implementation, in an embodiment of the first aspect of the present application, the number of the air duct openings is at least two, and at least two of the air duct openings are arranged opposite to each other.

[0014] As an optional implementation, in an embodiment of the first aspect of the present application, the first guide rail is arranged on the outer periphery of the rotor assembly, the second guide rail is arranged on the inner wall of the stator assembly, and the stator assembly is sleeved on the outer periphery of the rotor assembly.

[0015] As an optional implementation, in an embodiment of the first aspect of the present application, the first guide rail and the second guide rail extend along the circumferential direction of the rotor assembly to be connected end to end, and the number of the rolling elements is multiple, and the multiple rolling elements are arranged in sequence along the extension direction of the rolling track.

[0016] The lamp provided according to the embodiment of the second aspect of the present application comprises a fixing frame, a cutting assembly and the stepless rotating device as described in the first aspect above, wherein the cutting assembly is mounted on the rotor assembly and the stator assembly is mounted on the fixing frame.

[0017] Compared with the prior art, the beneficial effects of this application are:

[0018] The embodiment of the present application provides a stepless rotating device and a lamp, the stepless rotating device includes a rotor assembly, a stator assembly and a rolling element, and the centers of the stator assembly and the rotor assembly are provided with avoidance holes to avoid the focusing lens. At the same time, the first guide rail of the rotor assembly and the second guide rail of the stator assembly are enclosed to form a rolling track, and a rolling element is arranged in the rolling track so that the rotor assembly and the stator assembly are connected through the rolling element, so that the relative rotation requirements of the rotor assembly and the stator assembly can be met, and the flexibility of the relative rotation of the rotor assembly and the stator assembly can be improved. The cutting assembly is driven to rotate by the rotor assembly, and the light beam can be cut while avoiding the focusing lens. In addition, the center lines of the stator assembly and the rotor assembly are coaxially arranged. Since the rolling of the rolling element is limited by the rolling track, the concentricity of the rotor assembly and the stator assembly during relative rotation can be ensured to improve the concentricity of the optical axis of the lamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide further understanding of the technical solution of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present application and do not constitute a limitation on the technical solution of the present application.

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the stepless rotating device disclosed in the embodiment of the present application;

[0021] Figure 2 is a top view of the stepless rotating device disclosed in the embodiment of the present application;

[0022] Figure 3 is a cross-sectional view of the stepless rotating device disclosed in the embodiment of the present application;

[0023] Figure 4 It is a partial disassembly schematic diagram of the stepless rotating device disclosed in the embodiment of the present application;

[0024] Figure 5 It is a disassembly schematic diagram of the stepless rotating device disclosed in the embodiment of the present application.

[0025] Reference numerals:

[0026] 100. Stepless rotating device; 101. Avoidance hole; 10. Rotor assembly; 11. First rotor base; 12. Second rotor base; 121. Air duct opening; 20. Stator assembly; 21. First stator base; 22. Second stator base; 30. Rolling element; 40. Gear plate. DETAILED DESCRIPTION

[0027] This section will describe in detail the specific embodiments of the present application. The preferred embodiments of the present application are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present application, but it cannot be understood as a limitation on the scope of protection of the present application.

[0028] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to 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 application.

[0029] In the description of this application, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0030] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0031] The embodiment of the present application discloses a stepless rotating device, which can be applied to a lamp to realize stepless rotation of a cutting component and improve the richness of the light beam shape of the lamp. The lamp includes a fixing frame, a cutting component and a stepless rotating device.

[0032] In order to facilitate understanding of the structure of the stepless rotating device and the lamp, the stepless rotating device and the lamp will be further described below in conjunction with embodiments and drawings.

[0033] Please also read Figures 1 to 3The embodiment of the present application provides a lamp (not shown), including a stepless rotating device 100, a fixing frame (not shown) and a cutting assembly (not shown). The stepless rotating device 100 includes a rotor assembly 10, a stator assembly 20 and a rolling element 30. The rotor assembly 10 is provided with a first guide rail, and the rotor assembly 10 is used to connect the cutting assembly. The stator assembly 20 is coaxially arranged with the center line of the rotor assembly 10. The stator assembly 20 is provided with a second guide rail, and the second guide rail is used to enclose with the first guide rail to form a rolling track. The stator assembly 20 is installed on the fixing frame. The centers of the stator assembly 20 and the rotor assembly 10 are both provided with avoidance holes 101. The rolling element 30 is installed on the rolling track so that the rotor assembly 10 and the stator assembly 20 can rotate relative to each other.

[0034] In this way, the stator assembly 20 and the rotor assembly 10 are both provided with avoidance holes 101 in the center to avoid the focusing lens. At the same time, the first guide rail of the rotor assembly 10 and the second guide rail of the stator assembly 20 are enclosed to form a rolling track, and a rolling member 30 is arranged in the rolling track so that the rotor assembly 10 and the stator assembly 20 are connected through the rolling member 30, so that the relative rotation requirements of the rotor assembly 10 and the stator assembly 20 can be met, and the flexibility of the relative rotation of the rotor assembly 10 and the stator assembly 20 can be improved. The cutting assembly is driven to rotate by the rotor assembly 10, and the light beam can be cut while avoiding the focusing lens. In addition, the center lines of the stator assembly 20 and the rotor assembly 10 are coaxially arranged. Since the rolling of the rolling member 30 is limited by the rolling track, the concentricity of the rotor assembly 10 and the stator assembly 20 during relative rotation can be ensured to improve the concentricity of the optical axis of the lamp.

[0035] Optionally, the rolling element 30 may be any one of a ball, a steel ball or a roller, etc., and may be specifically configured according to actual needs and is not limited here.

[0036] Optionally, the ratio of the inner diameter of the rolling track to the diameter of the rolling element 30 is 1.0-1.2, for example, 1.01, 1.05, 1.10, 1.12, 1.15 or 1.18, etc. This can satisfy the movement of the rolling element 30 in the rolling track, ensure the stability of the movement of the rolling element 30 in the raceway track, and control the hole opening cost of the first guide rail and the second guide rail to reduce the manufacturing cost.

[0037] In some embodiments, the first guide rail is disposed on the outer periphery of the rotor assembly 10, the second guide rail is disposed on the inner wall of the stator assembly 20, and the stator assembly 20 is sleeved on the outer periphery of the rotor assembly 10. Thus, the outer periphery of the rotor assembly 10 and the inner wall of the stator assembly 20 form a rolling track, and the rotor assembly 10 rotates inside the stator assembly 20, which can improve the reliability of the stepless rotating device 100 and reduce the risk of interference and friction between the rotor assembly 10 and other structures during rotation.

[0038] It can be understood that in other embodiments, the first guide rail can also be provided on the inner wall of the rotor assembly 10 , the second guide rail is provided on the outer periphery of the stator assembly 20 , and the rotor assembly 10 is sleeved on the outer periphery of the stator assembly 20 .

[0039] Optionally, the first guide rail and the second guide rail extend along the circumferential direction of the rotor assembly 10 to be connected end to end to form an annular rolling track, so that the rotor assembly 10 can achieve 360° stepless rotation relative to the stator assembly 20, so as to improve the degree of freedom of rotation of the cutting assembly and make the rotation angle control of the cutting assembly more flexible. At the same time, the number of the rolling elements 30 is multiple, and the multiple rolling elements 30 are arranged in sequence along the extension direction of the rolling track, so as to improve the structural stability of the stepless rotating device 100, improve the reliability and flexibility of the rotation of the rotor assembly 10 relative to the stator assembly 20, and reduce the risk of jamming during rotation.

[0040] Please combine Figure 1 , Figure 4 as well as Figure 5 In some embodiments, it is characterized in that the rotor assembly 10 includes a first rotor base 11 and a second rotor base 12, the first rotor base 11 and the second rotor base 12 are detachably connected, the first rotor base 11 and the second rotor base 12 are enclosed to form the first guide rail, the cutting assembly is installed on the first rotor base 11, the stator assembly 20 includes a first stator base 21 and a second stator base 22, the first stator base 21 and the second stator base 22 are detachably connected, and the first stator base 21 is connected to a fixing frame, and the first stator base 21 and the second stator base 22 are enclosed to form the second guide rail.

[0041] In this way, the stator assembly 20 and the rotor assembly 10 are respectively connected detachably by two bases, and the rolling track is formed by four arc grooves, which can facilitate the processing and manufacturing of the stator assembly 20 and the rotor assembly 10, and is conducive to the installation and removal of the rolling element 30, so as to facilitate the replacement and maintenance of the rolling element 30. In addition, by replacing the rotor assembly 10 with different inner diameters, focusing lenses with different calibers can be matched, thereby saving the manufacturing cost caused by secondary development, reducing the manufacturing cost, and improving the versatility of the lamp.

[0042] Optionally, the first rotor base 11 is provided with a first arc groove, the second rotor base 12 is provided with a second arc groove, the first arc groove and the second arc groove are combined to form the first guide rail, the first stator base 21 is provided with a third arc groove, the second stator base 22 is provided with a fourth arc groove, the third arc groove and the fourth arc groove are combined to form the second guide rail, the first arc groove, the second arc groove, the third arc groove and the fourth arc groove are all quarter arc grooves, and the first arc groove, the second arc groove, the fourth arc groove and the third arc groove are arranged in sequence and combined to form the rolling track. Thus, the rolling track can be formed by the four quarter arc grooves, which is not only conducive to the processing and forming of each arc groove, but also convenient for the assembly of the stepless rotating device 100.

[0043] It can be understood that in other embodiments, the first arc groove, the second arc groove, the third arc groove and the fourth arc groove can also be arc grooves of different sizes, as long as the first guide rail and the second guide rail after assembly form semicircular grooves respectively, to facilitate the assembly of the stepless rotating device 100.

[0044] Optionally, the connection method between the first rotor base 11 and the second rotor base 12 can be any one of threaded connection, snap connection or glue connection, and the connection method between the first stator base 21 and the second stator base 22 can be any one of threaded connection, snap connection or glue connection, etc., which can be set according to actual needs and is not limited here.

[0045] In some embodiments, the stepless rotating device 100 also includes a gear plate 40, which is detachably connected to the second stator base 22, and the gear plate 40 is coaxially arranged with the center line of the second stator base 22. The cutting assembly includes a cutting body, a driving member and a rotating gear. The cutting body is installed on the first rotor base 11, and the output end of the driving member is connected to the rotating gear. The gear plate 40 is used to mesh with the rotating gear.

[0046] In this way, the cutting assembly and the driving member are installed on the first rotor base 11, and the first stator base 21 is installed on the fixed frame. Since the gear plate 40, the second stator base 22, the first stator connection and the fixed frame are relatively fixed, when the driving member drives the rotating gear to rotate, the rotating gear meshes and drives around the outer periphery of the gear plate 40 under the action of the driving member, so as to drive the driving member, the cutting body and the rotor assembly 10 to rotate around the center line of the gear plate 40, so as to cut the light beam through the cutting body to switch different light beam shapes and realize 360° infinite rotation of the cutting body.

[0047] Optionally, the gear plate 40 can be detachably connected to a side of the second stator base 22 away from the first stator base 21, so that the gear plate 40 and the first stator base 21 are respectively arranged on both sides of the second stator base 22, thereby facilitating the installation and positioning of the gear plate 40 and facilitating the assembly of the stepless rotating device 100, thereby improving the assembly convenience of the stepless rotating device 100.

[0048] Optionally, the gear plate 40 and the second stator base 22 may be connected in any manner by threaded connection, snap connection or adhesive connection, etc., which may be specifically configured according to actual needs and is not limited here.

[0049] Optionally, a ratio of an inner diameter of the first stator base 21 to an outer diameter of the first rotor base 11 is 1.010-1.020, for example, 1.011, 1.012, 1.013, 1.015, 1.016 or 1.018.

[0050] This ensures the size of the rolling track, thereby ensuring the flexibility of the rolling element 30 relative to the rolling track while improving the stability of the rolling element 30 in the rolling track, and also controls the cost of opening the first guide rail and the second guide rail, which is beneficial to reducing manufacturing costs.

[0051] It can be understood that the ratio of the inner diameter of the second stator base 22 to the outer diameter of the second rotor base 12 can also be 1.010-1.020, such as 1.011, 1.012, 1.013, 1.015, 1.016 or 1.018, etc. Thus, the size of the rolling track can be ensured, so as to improve the stability of the rolling element 30 in the rolling track while ensuring the flexibility of the rolling element 30 relative to the rolling track, and the cost of opening the first guide rail and the second guide rail can be controlled, so as to help reduce the manufacturing cost.

[0052] In some embodiments, the second rotor base 12 extends in the axial direction away from the first rotor base 11, and a side of the second rotor base 12 away from the first rotor base 11 is provided with an air duct opening 121 connected to the avoidance hole 101. Thus, a channel can be provided for the cooling fluid of the cutting assembly, and the cooling fluid can pass through when the rotor assembly 10 rotates relative to the stator assembly 20, so as to cool the cutting assembly, thereby improving the heat dissipation efficiency of the lamp.

[0053] Optionally, the number of the air duct openings 121 is at least two, and at least two of the air duct openings 121 are arranged opposite to each other. Therefore, when the cooling fluid is airflow, the airflow can be convected between the two oppositely arranged air duct openings 121, so as to facilitate the flow of gas and improve the heat dissipation efficiency of the cutting assembly.

[0054] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present application.

Claims

1. A stepless rotating device, characterized in that: include: A rotor assembly, wherein the rotor assembly is provided with a first guide rail and the rotor assembly is used to connect with the cutting assembly; A stator assembly, wherein the stator assembly is coaxially arranged with the center line of the rotor assembly, the stator assembly is provided with a second guide rail, the second guide rail is used to enclose with the first guide rail to form a rolling track, and the centers of the stator assembly and the rotor assembly are both provided with avoidance holes; and A rolling element is installed on the rolling track so that the rotor assembly and the stator assembly can rotate relative to each other.

2. The stepless rotating device according to claim 1, characterized in that: The rotor assembly includes a first rotor base and a second rotor base, the first rotor base and the second rotor base are detachably connected, the first rotor base and the second rotor base are combined to form the first guide rail, the cutting assembly is installed on the first rotor base, and the stator assembly includes a first stator base and a second stator base, the first stator base and the second stator base are detachably connected, and the first stator base and the second stator base are combined to form the second guide rail.

3. The stepless rotating device according to claim 2, characterized in that: The first rotor base is provided with a first arc groove, the second rotor base is provided with a second arc groove, the first arc groove and the second arc groove are combined to form the first guide rail, the first stator base is provided with a third arc groove, the second stator base is provided with a fourth arc groove, the third arc groove and the fourth arc groove are combined to form the second guide rail, the first arc groove, the second arc groove, the third arc groove and the fourth arc groove are all quarter arc grooves, and the first arc groove, the second arc groove, the fourth arc groove and the third arc groove are arranged in sequence and combined to form the rolling track.

4. The stepless rotating device according to claim 2, characterized in that: The stepless rotating device also includes a gear plate, which is detachably connected to the second stator base, and the gear plate is coaxially arranged with the center line of the second stator base. The first stator base is fixedly installed on a fixed frame. The cutting assembly includes a cutting body, a driving member and a rotating gear. The cutting body is installed on the first rotor base, the output end of the driving member is connected to the rotating gear, and the gear plate is used to mesh with the rotating gear.

5. The stepless rotating device according to claim 4, characterized in that: The gear plate is detachably connected to a side of the second stator base away from the first stator base.

6. The stepless rotating device according to claim 2, characterized in that: The second rotor base extends in an axial direction away from the first rotor base, and a wind duct opening communicating with the avoidance hole is provided on a side of the second rotor base away from the first rotor base.

7. The stepless rotating device according to claim 6, characterized in that: The number of the air duct openings is at least two, and at least two of the air duct openings are arranged opposite to each other.

8. The stepless rotating device according to any one of claims 1 to 7, characterized in that: The first guide rail is arranged on the outer periphery of the rotor assembly, the second guide rail is arranged on the inner wall of the stator assembly, and the stator assembly is sleeved on the outer periphery of the rotor assembly.

9. The stepless rotating device according to any one of claims 1 to 7, characterized in that: The first guide rail and the second guide rail extend along the circumferential direction of the rotor assembly to be connected end to end. There are multiple rolling elements, and the multiple rolling elements are arranged in sequence along the extension direction of the rolling rail.

10. A lamp, characterized in that: It comprises a fixing frame, a cutting assembly and the stepless rotating device as described in any one of claims 1 to 9, wherein the cutting assembly is mounted on the rotor assembly, and the stator assembly is mounted on the fixing frame.

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