Cross rail turntable structure

Abstract

The utility model discloses a cross rail turntable structure which comprises a supporting seat and a driving unit, the middle of the supporting seat is rotationally connected with a supporting shaft through a bearing, a rotating disc is arranged at the upper end of the supporting shaft, traveling rails are arranged in grooves in the upper surface of the rotating disc, the two traveling rails are arranged in parallel, a second synchronous belt wheel is arranged at the upper end of the outer arc face of the supporting shaft, an encoder is arranged at the upper end of the supporting seat, and a first synchronous belt wheel is arranged on a rotating shaft of the encoder. The first synchronous pulley and the second synchronous pulley are in transmission connection through a synchronous belt, and the output end of the encoder is electrically connected with the input end of an external controller. The driving unit is arranged in the middle of the supporting seat, the supporting shaft is fixedly connected with the driving unit, the position of the rotating disc is detected through the encoder, the rotating positioning accuracy of the rotating disc is high, meanwhile, the driving unit has the self-locking capacity, the structure is simple, and use convenience is good.

Description

Technical Field

[0001] The utility model relates to the technical field of logistics and transportation, in particular to a cross-rail turntable structure. Background Art

[0002] With the progress of society and the gradual development of the logistics industry, the construction of intelligent logistics systems has received more and more attention and attention from people. The guide rail trolleys of the intelligent logistics system travel along the guide rails installed on the ground to realize the transportation of materials. The logistics system is generally composed of multiple sets of guide rails. A turntable structure is provided at the intersection of two sets of guide rails. The cross-rail turntable structure is a very efficient and flexible mechanical structure. It can realize fast and accurate conversion and movement, realize the conduction of different guide rails, and change the travel route of the guide rail trolley to ensure the normal operation of the logistics system. The existing cross-rail turntable structure is generally driven to rotate by a motor, gears and gear rings, lacks self-locking ability, and generally uses a proximity switch sensor to position the rotating disk, and the rotation positioning accuracy is generally low. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a cross-track turntable structure, which can use an encoder to detect the position of the rotating disk, and the rotation positioning accuracy of the rotating disk is high. At the same time, the driving unit has a self-locking ability, the structure is simple and the convenience of use is good, which can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a cross-track turntable structure, comprising a support base and a drive unit;

[0005] Support seat: The middle part of the support seat is rotatably connected to the support shaft through a bearing. The upper end of the support shaft is provided with a rotating disk. The grooves on the upper surface of the rotating disk are provided with driving rails. The two driving rails are arranged in parallel. The upper end of the outer arc surface of the support shaft is provided with a synchronous pulley 2. The upper end of the support seat is provided with an encoder. The rotating shaft of the encoder is provided with a synchronous pulley 1. The synchronous pulley 1 and the synchronous pulley 2 are connected through a synchronous belt drive. The output end of the encoder is electrically connected to the input end of the external controller.

[0006] Drive unit: It is arranged in the middle of the support base, and the support shaft is fixedly connected to the drive unit. During use, the position of the rotating disk can be detected by the encoder, which greatly improves the accuracy of the rotating disk's rotation positioning and ensures that the driving rail can be accurately docked with the external cross guide rail, greatly improving the safety of the logistics system. At the same time, the worm, worm wheel and sprocket pair can be used to reduce the speed of the rotating disk. After stopping the drive, the self-locking force of the worm and worm wheel can be used to position the rotating disk, so the structure is simple and the convenience of use is good.

[0007] Furthermore, the driving unit includes a worm wheel and a worm. The worm wheel is arranged in the middle of the outer arc surface of the support shaft. The upper end of the support seat is rotatably connected to the worm through a bearing. The worm is meshed with the worm wheel to facilitate the driving of the support shaft and self-locking.

[0008] Furthermore, the drive unit also includes sprocket 1, a motor and sprocket 2, wherein sprocket 1 is arranged at the front end of the worm, the motor is arranged in the middle of the support seat, sprocket 2 is provided on the output shaft of the motor, sprocket 2 is connected to sprocket 1 through a chain transmission, and the input end of the motor is electrically connected to the output end of the external controller to facilitate the driving of the worm.

[0009] Furthermore, the diameter of the sprocket 1 is larger than the diameter of the sprocket 2, so that reduction transmission can be performed.

[0010] Furthermore, the lower surface of the rotating disk is provided with evenly distributed supporting slides, and the edge of the upper surface of the lower end of the support seat is provided with an annular guide rail. The lower ends of the supporting slides are slidably connected to the annular guide rail to provide support for the rotating disk.

[0011] Furthermore, the lower ends of the support slides are rotatably connected to rollers via bearings, and the rollers are slidably connected to the annular guide rails, thereby reducing the friction between the support slides and the annular guide rails.

[0012] Furthermore, the outer surfaces of the support slides are fixedly connected to the inner walls of the connecting rings, thereby improving the structural strength of the support slides.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the cross-track turntable structure has the following advantages:

[0014] 1. The support shaft drives the synchronous pulley 2 to rotate. The synchronous pulley 2 drives the rotating shaft of the encoder to rotate synchronously through the synchronous belt and the synchronous pulley 1. The encoder detects the position of the rotating disk and converts it into an electrical signal and transmits it to the external controller. When the position of the traveling rail corresponds to the position of the external guide rail, the external controller controls the motor to stop rotating. During use, the position of the rotating disk can be detected by the encoder, which greatly improves the accuracy of the rotating disk's rotation positioning and ensures that the traveling rail can be accurately docked with the external cross guide rail, greatly improving the safety of the system.

[0015] 2. Adjust the external controller, the motor runs, the output shaft of the motor drives the sprocket 2 to rotate, the sprocket 2 drives the worm to rotate through the chain and the sprocket 1, the worm drives the rotating disk to rotate through the worm wheel and the support shaft, the rotating disk drives the traveling rail and the guide rail trolley to rotate synchronously and dock with another set of cross guide rails. During use, the worm and worm wheel can be used to reduce the speed of the rotating disk. At the same time, after stopping the drive, the self-locking force of the worm and worm wheel can be used to position the rotating disk, so the structure is simple and the convenience of use is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the rotating disk of the utility model.

[0018] In the figure: 1 support base, 2 support shaft, 3 rotating disk, 4 traveling rail, 5 drive unit, 51 worm gear, 52 worm, 53 sprocket 1, 54 motor, 55 sprocket 2, 6 encoder, 7 synchronous pulley 1, 8 synchronous pulley 2, 9 support slide, 10 annular guide rail, 11 roller, 12 connecting ring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-2 , this embodiment provides a technical solution: a cross-track turntable structure, including a support base 1 and a driving unit 5;

[0021] Support seat 1: The middle part of the support seat is connected to the support shaft 2 through a bearing, and the support seat 1 is installed at the intersection of the external guide rail. The upper end of the support shaft 2 is provided with a rotating disk 3. The grooves on the upper surface of the rotating disk 3 are provided with a driving rail 4. The two driving rails 4 are arranged in parallel to ensure that the driving rails 4 correspond to the positions of the external guide rails. The guide rail trolley walks along the guide rails to the two driving rails 4. The rotating disk 3 drives the driving rails 4 and the guide rail trolley to rotate synchronously and dock with another set of intersecting guide rails. A synchronous pulley 2 8 is provided at the upper end of the outer arc surface of the support shaft 2, and an encoder 6 is provided at the upper end of the support seat 1. A synchronous pulley 1 7 is provided on the rotating shaft of the encoder 6. The synchronous pulley 1 7 is connected to the synchronous pulley 2 8 through a synchronous belt drive. The output end of the encoder 6 is electrically connected to the input end of the external controller. The support shaft 2 drives the synchronous pulley 2 8 to rotate. The synchronous pulley 2 8 The rotating shaft of the encoder 6 is driven to rotate synchronously by the synchronous belt and the synchronous pulley 7. The encoder 6 detects the position of the rotating disk 3 and converts it into an electrical signal for transmission to the external controller. The lower surface of the rotating disk 3 is provided with evenly distributed support slides 9, and the edge of the upper surface of the lower end of the support seat 1 is provided with an annular guide rail 10. The lower ends of the support slides 9 are slidably connected to the annular guide rail 10. The support slides 9 and the annular guide rail 10 provide support for the edge of the rotating disk 3. The lower ends of the support slides 9 are rotatably connected to the rollers 11 through bearings. The rollers 11 are slidably connected to the annular guide rail 10. The rollers 11 reduce the friction between the support slides 9 and the annular guide rail 10. The outer surfaces of the support slides 9 are fixedly connected to the inner wall of the connecting ring 12. The connecting ring 12 connects the four support slides 9 to improve the structural strength of the support slides 9;

[0022] Drive unit 5: It is arranged in the middle of the support base 1, and the support shaft 2 is fixedly connected to the drive unit 5. The drive unit 5 includes a worm wheel 51 and a worm 52. The worm wheel 51 is arranged in the middle of the outer arc surface of the support shaft 2. The upper end of the support base 1 is rotatably connected to the worm 52 through a bearing. The worm 52 is meshed with the worm wheel 51. The worm 52 drives the rotating disk 3 to rotate through the worm wheel 51 and the support shaft 2. The drive unit 5 also includes a sprocket 1 53, a motor 54 and a sprocket 2 55. The sprocket 1 53 is arranged It is placed at the front end of the worm 52, and the motor 54 is set in the middle of the support seat 1. The output shaft of the motor 54 is provided with a sprocket 2 55. The sprocket 2 55 is connected to the sprocket 1 53 through a chain transmission. The input end of the motor 54 is electrically connected to the output end of the external controller. When the motor 54 runs, the output shaft of the motor 54 drives the sprocket 2 55 to rotate. The sprocket 2 55 drives the worm 52 to rotate through the chain and the sprocket 1 53. The diameter of the sprocket 1 53 is larger than the diameter of the sprocket 2 55, and a reduction transmission can be performed.

[0023] The working principle of a cross-rail turntable structure provided by the utility model is as follows: before use, the support seat 1 is installed at the intersection of the external guide rails, and at the same time, it is ensured that the driving rail 4 corresponds to the position of the external guide rails. When in use, the guide rail trolley walks along the guide rails to the two driving rails 4, and the external controller is adjusted, the motor 54 is running, and the output shaft of the motor 54 drives the sprocket 2 55 to rotate, and the sprocket 2 55 drives the worm 52 to rotate through the chain and the sprocket 1 53, and the worm 52 drives the rotating disk 3 to rotate through the worm gear 51 and the support shaft 2, and the rotating disk 3 drives the driving rails 4 and the guide rail trolley to rotate synchronously and dock with another set of crossed guide rails. At the same time, the support shaft 2 drives the synchronous pulley 2 8 to rotate, and the synchronous pulley 2 8 drives the rotating shaft of the encoder 6 to rotate synchronously through the synchronous belt and the synchronous pulley 1 7. The encoder 6 detects the position of the rotating disk 3 and converts it into an electrical signal and transmits it to the external controller. When the driving rail 4 corresponds to the position of the external guide rail, the external controller controls the motor 54 to stop rotating, and then the guide rail trolley continues to run and will travel to another set of guide rails.

[0024] It is worth noting that the motor 54 and encoder 6 disclosed in the above embodiments can be freely configured according to the actual application scenario. The motor 54 can use an electric motor with model Y80M1-4, and the encoder 6 can use an encoder with model TRD-NA256. The external controller controls the operation of the motor 54 and the encoder 6 using methods commonly used in the prior art.

[0025] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A cross-track turntable structure, characterized by: It comprises a support base (1) and a drive unit (5); A support seat (1) is provided with a support shaft (2) in its middle portion for rotation via a bearing, a rotating disk (3) is provided at the upper end of the support shaft (2), a driving rail (4) is provided inside the grooves on the upper surface of the rotating disk (3), and the two driving rails (4) are arranged in parallel, a synchronous pulley 2 (8) is provided at the upper end of the outer arc surface of the support shaft (2), an encoder (6) is provided at the upper end of the support seat (1), a synchronous pulley 1 (7) is provided on the rotating shaft of the encoder (6), the synchronous pulley 1 (7) and the synchronous pulley 2 (8) are connected via a synchronous belt transmission, and the output end of the encoder (6) is electrically connected to the input end of an external controller; The driving unit (5) is arranged in the middle of the supporting seat (1), and the supporting shaft (2) is fixedly connected to the driving unit (5).

2. The cross-track turntable structure according to claim 1, characterized in that: The driving unit (5) comprises a worm wheel (51) and a worm (52); the worm wheel (51) is arranged at the middle of the outer arc surface of the support shaft (2); the upper end of the support seat (1) is rotatably connected to the worm (52) via a bearing; the worm (52) is meshedly connected to the worm wheel (51).

3. The cross-track turntable structure according to claim 2, characterized in that: The driving unit (5) further comprises a sprocket 1 (53), a motor (54) and a sprocket 2 (55), wherein the sprocket 1 (53) is arranged at the front end of the worm (52), the motor (54) is arranged at the middle of the support seat (1), the output shaft of the motor (54) is provided with a sprocket 2 (55), the sprocket 2 (55) is connected to the sprocket 1 (53) through a chain transmission, and the input end of the motor (54) is electrically connected to the output end of the external controller.

4. The cross-track turntable structure according to claim 3, characterized in that: The diameter of the sprocket one (53) is greater than the diameter of the sprocket two (55).

5. The cross-track turntable structure according to claim 1, characterized in that: The lower surface of the rotating disk (3) is provided with evenly distributed supporting slides (9), and the edge of the upper surface of the lower end of the supporting seat (1) is provided with an annular guide rail (10), and the lower ends of the supporting slides (9) are slidably connected to the annular guide rail (10).

6. The cross-track turntable structure according to claim 5, characterized in that: The lower ends of the support slides (9) are rotatably connected to rollers (11) via bearings, and the rollers (11) are slidably connected to the annular guide rails (10).

7. The cross-track turntable structure according to claim 5, characterized in that: The outer surfaces of the supporting sliding columns (9) are fixedly connected to the inner wall of the connecting ring (12).

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