Rotating mechanism with small rotary table sleeved with large rotary table

Abstract

The utility model discloses a rotating mechanism with a large turntable sleeved with a small turntable, which relates to the field of turntable equipment and comprises a support table top, a large turntable table top and a small turntable table top, an outer support frame is connected below the support table top, and a support frame connected through a plurality of support short pipes, a support main pipe and a support vertical pipe is arranged below the large turntable table top. A rotating mechanism is installed below the table top of the small rotary table and comprises a large rotary table rotating unit, a small rotary table rotating unit and a middle drag chain mechanism, the small rotary table rotating unit is arranged above the large rotary table rotating unit, and the large rotary table rotating unit drives a first slewing bearing to rotate through a first gear motor; the first slewing bearing drives the large rotary table top and the small rotary table top to rotate synchronously by driving the supporting main pipe fixedly connected above the first slewing bearing, and the second gear motor drives the small rotary table top to rotate independently, so that a product can rotate relatively on the two rotary tables, the use modes are more diversified, and the multi-dimensional test requirement is met.

Description

Technical Field

[0001] The utility model relates to the technical field of turntable equipment, in particular to a rotary mechanism of a large turntable sleeving a small turntable. Background Art

[0002] Electromagnetic compatibility (EMC) refers to the ability of a device or system to operate in its electromagnetic environment and meet the requirements without causing intolerable electromagnetic interference to any device in its environment. Electromagnetic compatibility tests can ensure that the device works properly in an environment with external electromagnetic interference, avoid functional failures or performance degradation caused by electromagnetic interference, and reduce the electromagnetic interference of the device to other devices by testing and optimizing the electromagnetic compatibility of the device.

[0003] In electromagnetic compatibility experiments, the turntable is used to simulate different positions and angles of the device during actual use, so as to test its electromagnetic radiation and anti-interference capabilities. The existing turntable rotation can only meet the requirement of rotating a certain angle unidirectionally for a product, and a single turntable cannot meet the requirements of testing two or more different products and different tests, and cannot meet multi-dimensional tests. Therefore, a turntable that can make the product rotate relatively is needed to solve the above problems. For this reason, a rotary mechanism of a large turntable sleeving a small turntable is proposed. Summary of the Utility Model

[0004] To solve the above technical problems, a rotary mechanism of a large turntable sleeving a small turntable is provided. This technical solution solves the problem that the existing turntable rotation can only meet the requirement of rotating a certain angle unidirectionally for a product, and cannot meet the requirements of testing two or more different products and different tests, and cannot meet multi-dimensional tests.

[0005] To achieve the above object, the technical solution adopted by the utility model is as follows:

[0006] A rotary mechanism of a large turntable sleeving a small turntable includes a support tabletop, a large turntable tabletop and a small turntable tabletop. The large turntable tabletop is arranged inside the support tabletop, and the small turntable tabletop is arranged inside the large turntable tabletop. The small turntable tabletop is circular and the large turntable tabletop and the small turntable tabletop are concentrically arranged. An outer support frame is connected below the support tabletop. The outer support frame is composed of a plurality of square pipes connected by bolts. A plurality of support columns are fixedly connected below the outer support frame. A plurality of support short pipes are connected below the large turntable tabletop. The plurality of support short pipes are evenly distributed in a circumferential manner and support main pipes are arranged below each of them. A support vertical pipe is connected between the support short pipe and the support main pipe. A first caster is arranged below the support vertical pipe. The first caster is fixedly connected to the end of the support main pipe through a mounting seat. A large turntable guide rail is arranged below the first caster. A plurality of first guide rail support seats are fixedly connected below the large turntable guide rail. A plurality of reinforcing square pipes are connected between the support vertical pipes.

[0007] Preferably, a plurality of small turntable support pipes are connected below the surface of the small turntable. A rotating mechanism is installed below the small turntable support pipes. The plurality of small turntable support pipes are evenly distributed in a circle. A plurality of second casters are arranged on the periphery of the small turntable support pipes. The upper ends of the second casters are fixedly connected to the small turntable support pipes. A small turntable guide rail is arranged below the second casters. A plurality of second guide rail support seats are fixedly connected below the small turntable guide rail. The lower ends of the second guide rail support seats are fixedly connected to the support main pipe.

[0008] Preferably, the rotating mechanism includes a large turntable rotating unit, a small turntable rotating unit and an intermediate drag chain mechanism. The small turntable rotating unit is arranged above the large turntable rotating unit. The intermediate drag chain mechanism is installed in the middle of the small turntable rotating unit.

[0009] Preferably, the large turntable rotating unit includes a first support frame, a first fixed table and a first reduction motor. The first fixed table is installed above the first support frame. The first reduction motor is installed on one side of the first support frame. The output end of the first reduction motor is fixedly connected to a first driving gear. The first driving gear meshes with a first slewing bearing. The first slewing bearing is rotationally connected to the first fixed table below it. The upper end of the first slewing bearing is fixedly connected to the support main pipe.

[0010] Preferably, the small turntable rotating unit includes a second support frame, a second fixed table and a second reduction motor. The second fixed table is installed above the second support frame. The lower end of the second support frame is fixedly connected to the support main pipe. The second reduction motor is installed on one side of the second support frame. The output end of the second reduction motor is fixedly connected to a second driving gear. The second driving gear meshes with a second slewing bearing. The second slewing bearing is rotationally connected to the second fixed table below it. The upper end of the second slewing bearing is fixedly connected to the small turntable support pipe through a connecting plate.

[0011] Preferably, the support table surface, the large turntable surface and the small turntable surface are in the same plane. The rotation angles of the large turntable surface and the small turntable surface are both within -20° to 380°.

[0012] The beneficial effects of the present utility model compared with the prior art are:

[0013] 1. The first reduction motor drives the first driving gear and the first slewing bearing to rotate. The first slewing bearing drives the supporting main pipe fixedly connected thereto to rotate. A second support frame and a second guide rail support base are connected above the supporting main pipe. The small turntable rotating unit and the small turntable support pipe rack are on the supporting main pipe. The rotation of the supporting main pipe will drive the small turntable tabletop to rotate synchronously. The second reduction motor drives the small turntable support pipe and the small turntable tabletop to rotate. The large turntable and the small turntable can rotate synchronously, and at the same time, the small turntable can also rotate independently, enabling multiple products to achieve multi-angle relative rotation on the two turntables, with more diverse usage methods and meeting multi-dimensional test requirements.

[0014] 2. The transmission mode of the turntable adopts gear transmission. The driving gear drives the slewing bearing to rotate, with smoother rotation, strong load-bearing capacity, and stable and reliable operation. Brief Description of the Drawings

[0015] Figure 1 is a structural schematic diagram of the present utility model;

[0016] Figure 2 is an internal structural schematic diagram of the present utility model;

[0017] Figure 3 is a structural schematic diagram of the large turntable guide rail and the supporting main pipe of the present utility model;

[0018] Figure 4 is a structural schematic diagram of the rotating mechanism and the supporting main pipe of the present utility model;

[0019] Figure 5 is a structural schematic diagram of the rotating mechanism of the present utility model.

[0020] The reference numerals in the figure are:

[0021] 1. Support tabletop; 11. Outer support frame; 12. Support column;

[0022] 2. Large turntable tabletop; 21. Support short pipe; 22. Support main pipe; 23. Support vertical pipe; 24. Large turntable guide rail; 25. First caster; 26. Reinforcing square pipe; 27. First guide rail support base;

[0023] 3. Small turntable tabletop; 31. Small turntable support pipe; 32. Second caster; 33. Small turntable guide rail; 34. Second guide rail support base;

[0024] 4. Rotating mechanism; 41. Large turntable rotating unit; 411. First support frame; 412. First fixed table; 413. First reduction motor; 414. First driving gear; 415. First slewing bearing; 42. Small turntable rotating unit; 421. Second support frame; 422. Second fixed table; 423. Second reduction motor; 424. Second driving gear; 425. Second slewing bearing; 43. Intermediate drag chain mechanism. Detailed implementation mode

[0025] The following description is used to disclose the present utility model so that those skilled in the art can implement the present utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variants.

[0026] As Figures 1-3 As shown in the figure, a large turntable sleeved with a small turntable rotating mechanism includes a support tabletop 1, a large turntable tabletop 2 and a small turntable tabletop 3. The large turntable tabletop 2 is arranged inside the support tabletop 1, and the small turntable tabletop 3 is arranged inside the large turntable tabletop 2. The small turntable tabletop 3 is circular and the large turntable tabletop 2 and the small turntable tabletop 3 are concentrically arranged. The support tabletop 1, the large turntable tabletop 2 and the small turntable tabletop 3 are located in the same plane. An outer support frame 11 is connected below the support tabletop 1. The outer support frame 11 is composed of a plurality of square pipes connected by bolts. A plurality of support columns 12 are fixedly connected below the outer support frame 11. An adjusting base is arranged below the support columns 12, and the support height of the support columns 12 can be adjusted by rotating the bolts to adjust the levelness of the outer support frame 11. A plurality of support short pipes 21 are connected below the large turntable tabletop 2. The plurality of support short pipes 21 are evenly distributed in a circle and support main pipes 22 are arranged below them. A support vertical pipe 23 is connected between the support short pipe 21 and the support main pipe 22. A plurality of reinforcing square pipes 26 are connected between the support vertical pipes 23. The support short pipe 21, the support main pipe 22, the support vertical pipe 23, the reinforcing square pipe 26 and the connecting pipe are fixedly connected by bolts to form a large turntable support frame. A first caster 25 is arranged below the support vertical pipe 23. The first caster 25 is fixedly connected to the end of the support main pipe 22 through a mounting seat. A large turntable guide rail 24 is arranged below the first caster 25. A plurality of first guide rail support seats 27 are fixedly connected below the large turntable guide rail 24. The first caster 25 rotates along the large turntable guide rail 24 when the large turntable rotates.

[0027] As Figure 4As shown in the figure, multiple small turntable support pipes 31 are connected below the surface of the small turntable 3. A rotating mechanism 4 is installed below the small turntable support pipes 31. The multiple small turntable support pipes 31 are evenly distributed in a circle. The small turntable support pipes 31 and the connecting pipes are fixed by bolts to form a small turntable support frame. Multiple second casters 32 are arranged on the periphery of the small turntable support pipes 31. The upper ends of the second casters 32 are fixedly connected to the small turntable support pipes 31. A small turntable guide rail 33 is arranged below the second casters 32. Multiple second guide rail support seats 34 are fixedly connected below the small turntable guide rail 33. The lower ends of the second guide rail support seats 34 are fixedly connected to the support main pipe 22. The second casters 32 rotate along the small turntable guide rail 33 when the small turntable rotates. When the large turntable rotates, the support main pipe 22 drives the small turntable to rotate synchronously.

[0028] Please refer to Figure 4 and 5 , the rotating mechanism 4 includes a large turntable rotating unit 41, a small turntable rotating unit 42 and an intermediate drag chain mechanism 43. The small turntable rotating unit 42 is arranged above the large turntable rotating unit 41. The intermediate drag chain mechanism 43 is installed in the middle of the small turntable rotating unit 42. The large turntable rotating unit 41 includes a first support frame 411, a first fixed platform 412 and a first reduction motor 413. The first fixed platform 412 is installed above the first support frame 411. The first reduction motor 413 is installed on one side of the first support frame 411. The output end of the first reduction motor 413 is fixedly connected with a first driving gear 414. The first driving gear 414 meshes with a first slewing bearing 415. The first slewing bearing 415 is rotationally connected with the first fixed platform 412 below it. The upper end of the first slewing bearing 415 is fixedly connected with the support main pipe 22. The first reduction motor 413 drives the first driving gear 414 and the first slewing bearing 415 to rotate, thereby driving the support main pipe 22 to rotate, and further driving the large turntable surface 2 and the small turntable surface 3 to rotate synchronously.

[0029] Among them, the small turntable rotating unit 42 includes a second support frame 421, a second fixed platform 422 and a second reduction motor 423. The second fixed platform 422 is installed above the second support frame 421. The lower end of the second support frame 421 is fixedly connected with the support main pipe 22. The second reduction motor 423 is installed on one side of the second support frame 421. The output end of the second reduction motor 423 is fixedly connected with a second driving gear 424. The second driving gear 424 meshes with a second slewing bearing 425. The second slewing bearing 425 is rotationally connected with the second fixed platform 422 below it. The upper end of the second slewing bearing 425 is fixedly connected with the small turntable support pipe 31 through a connecting plate. The second reduction motor 423 drives the second driving gear 424 and the second slewing bearing 425 to rotate, thereby driving the small turntable support pipe 31 and the small turntable surface 3 to rotate. The rotation angles of both the large turntable surface 2 and the small turntable surface 3 are in the range of -20° to 380°.

[0030] The principle of the present utility model is as follows: The first reduction motor 413 drives the first driving gear 414 and the first slewing bearing 415 to rotate. The first slewing bearing 415 drives the supporting main pipe 22 fixedly connected thereto to rotate. Above the supporting main pipe 22, a second support frame 421 and a second guide rail support base 34 are connected. The rotation of the supporting main pipe 22 will drive the small turntable tabletop 3 to rotate synchronously. The second reduction motor 423 drives the second driving gear 424 and the second slewing bearing 425 to rotate, thereby driving the small turntable support pipe 31 and the small turntable tabletop 3 to rotate. In this solution, when the large turntable tabletop 2 rotates, it will drive the small turntable tabletop 3 to rotate synchronously. The product can achieve multi-angle rotation on the two turntables to meet the multi-dimensional test requirements.

[0031] The above has shown and described the basic principle, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection required by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A rotary mechanism for a large turntable sleeving a small turntable, characterized in that: It includes a support tabletop (1), a large turntable tabletop (2), and a small turntable tabletop (3). Inside the support tabletop (1), there is a large turntable tabletop (2). Inside the large turntable tabletop (2), there is a small turntable tabletop (3). The small turntable tabletop (3) is circular and the large turntable tabletop (2) and the small turntable tabletop (3) are concentrically arranged. Below the support tabletop (1), there is an outer support frame (11) connected. The outer support frame (11) is composed of several square tubes connected by bolts. Below the outer support frame (11), multiple support columns (12) are fixedly connected. Below the large turntable tabletop (2), multiple support short tubes (21) are connected. The multiple support short tubes (21) are evenly distributed in a circle and a support main tube (22) is arranged below each of them. A support vertical tube (23) is connected between the support short tube (21) and the support main tube (22). Below the support vertical tube (23), there is a first caster (25). The first caster (25) is fixedly connected to the end of the support main tube (22) through a mounting seat. Below the first caster (25), there is a large turntable guide rail (24). Below the large turntable guide rail (24), multiple first guide rail support seats (27) are fixedly connected. Multiple reinforcing square tubes (26) are connected between the support vertical tubes (23).

2. The rotary mechanism of a large turntable sleeving a small turntable according to claim 1, wherein: Below the small turntable tabletop (3), multiple small turntable support tubes (31) are connected. Below the small turntable support tubes (31), a rotating mechanism (4) is installed. The multiple small turntable support tubes (31) are evenly distributed in a circle. Multiple second casters (32) are arranged outside the small turntable support tubes (31). The upper end of the second caster (32) is fixedly connected to the small turntable support tube (31). Below the second caster (32), there is a small turntable guide rail (33). Below the small turntable guide rail (33), multiple second guide rail support seats (34) are fixedly connected. The lower end of the second guide rail support seat (34) is fixedly connected to the support main tube (22).

3. The rotary mechanism of a large turntable sleeving a small turntable according to claim 2, wherein: The rotating mechanism (4) includes a large turntable rotating unit (41), a small turntable rotating unit (42), and an intermediate drag chain mechanism (43). The small turntable rotating unit (42) is arranged above the large turntable rotating unit (41). The intermediate drag chain mechanism (43) is installed in the middle of the small turntable rotating unit (42).

4. A large turntable sleeved with a small turntable rotating mechanism according to claim 3, characterized in that: The large turntable rotating unit (41) includes a first support frame (411), a first fixed platform (412), and a first reduction motor (413). The first fixed platform (412) is installed above the first support frame (411). The first reduction motor (413) is installed on one side of the first support frame (411). The output end of the first reduction motor (413) is fixedly connected to a first driving gear (414). The first driving gear (414) meshes with a first slewing bearing (415). The first slewing bearing (415) is rotatably connected to the first fixed platform (412) below it. The upper end of the first slewing bearing (415) is fixedly connected to the support main tube (22).

5. A large turntable sleeving small turntable rotation mechanism according to claim 3, characterized in that: The small turntable rotating unit (42) includes a second support frame (421), a second fixed table (422) and a second reduction motor (423). The second fixed table (422) is installed above the second support frame (421). The lower end of the second support frame (421) is fixedly connected to the support main pipe (22). The second reduction motor (423) is installed on one side of the second support frame (421). The output end of the second reduction motor (423) is fixedly connected to a second driving gear (424). The second driving gear (424) meshes with a second slewing bearing (425). The second slewing bearing (425) is rotatably connected to the second fixed table (422) below it. The upper end of the second slewing bearing (425) is fixedly connected to the small turntable support pipe (31) through a connecting plate.

6. The rotary mechanism of a large turntable sleeving a small turntable according to claim 1, characterized in that: The support tabletop (1), the large turntable tabletop (2) and the small turntable tabletop (3) are located in the same plane. The rotation angles of the large turntable tabletop (2) and the small turntable tabletop (3) are both within -20° to 380°.

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