Turnable RGV wheel train structure device

Abstract

The utility model discloses a turning RGV (Rail Guided Vehicle) wheel train structure device, which relates to the technical field of logistics conveying systems and comprises a rack, the two driving wheel train assemblies are mounted on one side of the bottom of the rack and arranged on the outer ring of the turning track to walk; the two driven wheel train assemblies are mounted on the other side of the bottom of the rack and arranged on the inner ring of the turning track to walk; the current collection arm is installed at the bottom of the rack, located below the driving wheel train assembly and used for being connected with a sliding contact line on a rail to achieve power supply to the trolley, four wheels of the RGV trolley are provided with wheel train rotating devices (universal wheels), a driven wheel train has a left-right sliding function, and stability of the RGV trolley during turning is guaranteed; slide wire power supply, frequency converter control and stepless speed regulation are adopted; the running state of the RGV can be displayed in real time based on a wireless Ethernet communication system, and all RGVs are scheduled to run coordinately; and a distance detection sensor is arranged to detect position information of the RGVs at the front end and the rear end, and safety is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of logistics conveying systems, and more specifically to a turnable RGV wheel system structure device. Background Art

[0002] With the development of warehousing logistics systems and automated factories, RGV is widely used in high-density storage stereoscopic warehouses and automation industries. It has the characteristics of fast conveying speed, good performance stability, and high safety factor. The RGV trolley can be connected with various forms of automation, such as in / out of the stereoscopic warehouse, the buffer table of the assembly line, the docking station of the elevator, and the conveying production line. According to the beat requirements and the different factory sites, it can be divided into reciprocating RGV and circular RGV according to the form of the track. The reciprocating RGV trolley can only run on the same track, with a maximum of two RGV trolleys, and they have independent running tracks. The circular RGV trolley runs on the same ring, and multiple RGV trolleys can be set up, which solves the shortcomings of limited conveying capacity and greatly improves the conveying efficiency.

[0003] The inventor of the utility model believes that the RGV trolley in the related art is not conducive to turning, and the stability and stability when turning are relatively poor. Based on the above problems, we provide a turning RGV wheel system structure device.

[0004] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the utility model, therefore, it may include prior art that is not known to ordinary technicians in this field. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a turnable RGV wheel system structure device.

[0006] The utility model provides a turnable RGV gear train structure device adopts the following technical solution:

[0007] A turnable RGV wheel train structure device comprises a frame; two driving wheel train assemblies, which are installed on one side of the bottom of the frame and are arranged to run on the outer circle of a turning track; two driven wheel train assemblies, which are installed on the other side of the bottom of the frame and are arranged to run on the inner circle of the turning track; and a collector arm, which is installed on the bottom of the frame and is located below the driving wheel train assembly and is used to connect to a busbar on the track to power the trolley.

[0008] Preferably, a cleaning brush is installed at the bottom of the frame relative to the driving wheel train assembly to assist in cleaning debris on the track.

[0009] Preferably, a linear measurement sensor is installed on the frame to detect the real-time position of the RGV trolley and set the position of the RGV trolley.

[0010] Preferably, the driving wheel train assembly includes a driving wheel box, an elastic coupling, and a connecting seat. The first wheel in the driving wheel box is connected to the first transmission shaft through a first key for transmission. Two sets of first spherical roller bearings are arranged on both sides of the first transmission shaft. The first spherical roller bearings are matched with the first bearing seat and installed on the side of the driving wheel box.

[0011] The elastic coupling connects the first transmission shaft and the extended shaft of the reduction motor respectively. One end of the outer coupling cover is connected to the first bearing seat, and the other end is connected to the reduction motor, which is fixed with screws. The middle part of the coupling cover is open on all four sides, which is convenient for operators to tighten the elastic coupling.

[0012] The connecting seat is connected to the frame by screws, and the first tapered roller bearing and the first thrust ball bearing are respectively arranged at the upper and lower ends of the connecting seat. The rotating shaft penetrates into the connecting seat and can rotate 360 ​​degrees at will in cooperation with the first tapered roller bearing and the first thrust ball bearing. The end of the rotating shaft is fixed by the first rotating shaft cover screw;

[0013] Two sets of eccentric wheel assemblies are respectively arranged on the front and rear end faces of the driving wheel box. When turning, the two sets of driving wheel train assemblies can rotate in any direction as the track bends. The eccentric wheel assemblies can adjust the gap between the wheel and the track.

[0014] Preferably, the driven wheel train assembly includes a driven wheel box and a slider, the second wheel inside the driven wheel box is connected to the second transmission shaft through a second key, two sets of second spherical roller bearings are arranged on both sides of the second transmission shaft, one section of which is connected to the transmission shaft cover plate;

[0015] The slider is fixed on the slider mounting seat, and the second tapered roller bearing and the second thrust ball bearing are respectively arranged at the upper and lower ends of the slider mounting seat. The second transmission shaft penetrates into the slider mounting seat and cooperates with the second tapered roller bearing and the first thrust ball bearing for transmission. The linear guide is fixed on the frame, and the end of the second transmission shaft is fixed by the second rotating shaft cover screw;

[0016] The front and rear end faces of the driven wheel box are each equipped with two sets of eccentric wheel assemblies. When turning, the two sets of driven wheel train assemblies can change with the curvature of the track. They can rotate on the frame or slide on the frame as the turning radius increases to adapt to the curved track line.

[0017] Preferably, the eccentric wheel assembly includes an eccentric wheel mounting plate, a hexagonal nut, an eccentric shaft, a deep groove ball bearing and an eccentric wheel. The eccentric shaft is connected to the eccentric wheel via two sets of deep groove ball bearings, and is integrally mounted on the eccentric wheel mounting plate and locked by a hexagonal nut.

[0018] In summary, the utility model includes the following beneficial technical effects:

[0019] 1. All four wheels of the RGV trolley are equipped with a wheel system rotation device (universal wheel), and the driven wheel system has the function of sliding left and right, which ensures the stability of the RGV trolley when turning.

[0020] 2. The RGV trolley is driven by two front and rear reduction motors to ensure the driving force. The two active gear trains and the reduction motors are driven by elastic couplings to avoid excessive torque and damage to the drive shaft.

[0021] 3. On the same circular track, multiple RGV trolleys can be used to run simultaneously, which greatly increases the transportation capacity and makes up for the shortcomings of reciprocating RGV.

[0022] 4. The RGV trolley is powered by busbar, controlled by frequency converter, and has stepless speed regulation. Based on the wireless Ethernet communication system, it can display the operating status of RGV in real time and dispatch all RGV trolleys to coordinate operation. The distance detection sensor can detect the position information of the front and rear RGV trolleys to ensure safety.

[0023] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a turnable RGV wheel system structure device in an embodiment of the utility model;

[0025] Figure 2 It is a structural schematic diagram of the driving gear train assembly in the embodiment of the utility model;

[0026] Figure 3 It is a structural schematic diagram of a driven gear train assembly in an embodiment of the utility model;

[0027] Figure 4 It is a structural schematic diagram of the eccentric wheel assembly in the embodiment of the utility model;

[0028] Figure 5 It is a schematic diagram of the working state of a turnable RGV wheel system structure device in an embodiment of the utility model.

[0029] Description of the accompanying drawings: 1. frame; 2. driving gear train assembly; 3. driven gear train assembly; 4. collector arm; 5. linear measurement sensor; 6. cleaning brush; 8. reduction motor; 9. elastic coupling; 10. coupling cover; 11. first thrust ball bearing; 12. first rotating shaft cover; 13. first tapered roller bearing; 14. connecting seat; 15. first rotating shaft; 16. driving wheel box; 17. first spherical roller bearing; 18. first bearing seat; 20. first transmission shaft; 21. first key; 22. The first wheel; 23. Linear guide; 24. Slider; 25. Second rotating shaft cover; 26. Second tapered roller bearing; 27. Slider mounting seat; 28. Second thrust ball bearing; 29. ​​Second rotating shaft; 30. Driven wheel box; 31. Second bearing seat; 32. Second spherical roller bearing; 34. Second wheel; 35. Drive shaft cover; 36. Second drive shaft; 37. Second key; 38. Eccentric wheel mounting plate; 39. Hexagonal nut; 40. Eccentric shaft; 41. Deep groove ball bearing; 42. Eccentric wheel. DETAILED DESCRIPTION

[0030] The following is combined with Figures 1 to 5 The utility model is described in further detail.

[0031] It should be noted that the drawings are schematic and not to scale. For the sake of clarity and convenience, the relative sizes and proportions of the parts shown in the drawings are exaggerated or reduced in size, and any size is only illustrative and not restrictive. In addition, the same reference symbol is used for the same structure, element or accessory appearing in more than two figures to reflect similar features.

[0032] The utility model embodiment discloses a turning RGV wheel system structure device. Figures 1 to 5 A turning RGV wheel train structure device includes a frame 1; two driving wheel train components 2, which are installed on one side of the bottom of the frame 1 and are arranged to run on the outer circle of the turning track; two driven wheel train components 3, which are installed on the other side of the bottom of the frame 1 and are arranged to run on the inner circle of the turning track; a collector arm 4, which is installed at the bottom of the frame 1 and is located below the driving wheel train component 2, and is used to connect the busbar on the track to power the trolley.

[0033] Specifically, a cleaning brush 6 is installed at the bottom of the frame 1 relative to the driving wheel train assembly 2 to assist in cleaning debris on the track.

[0034] Specifically, a linear measurement sensor 5 is installed on the frame 1 to detect the real-time position of the RGV trolley and set the position of the RGV trolley.

[0035] Specifically, the driving wheel train assembly 2 includes a driving wheel box 16, an elastic coupling 9, and a connecting seat 14. The first wheel 22 in the driving wheel box 16 is connected to the first transmission shaft 20 through a first key 21 for transmission. Two groups of first spherical roller bearings 17 are arranged on both sides of the first transmission shaft 20. The first spherical roller bearings 17 are matched with the first bearing seat 18 and installed on the side of the driving wheel box 16; the elastic coupling 9 connects the first transmission shaft 20 and the extended shaft of the reduction motor 8 respectively, and one end of the coupling cover 10 at the outer end is connected to the first bearing seat 18, and the other end is connected to the reduction motor 8, which is fixed with screws. The middle part of the coupling cover 10 is open on all four sides for the convenience of operators. Tighten the elastic coupling 9; the connecting seat 14 is connected to the frame 1 with screws, and the first tapered roller bearing 13 and the first thrust ball bearing 11 are respectively arranged at the upper and lower ends of the connecting seat 14. The first rotating shaft 15 penetrates into the connecting seat 14 and can rotate 360° at will in conjunction with the first tapered roller bearing 13 and the first thrust ball bearing 11. The end of the first rotating shaft 15 is fixed by the first rotating shaft cover 12 with screws; two sets of eccentric wheel assemblies are respectively arranged on the front and rear end faces of the driving wheel box 16. When turning, the two sets of driving wheel system assemblies 2 as a whole rotate in any direction as the track bends. The eccentric wheel assembly arranged can adjust the gap between the wheel and the track.

[0036] Specifically, the driven wheel train assembly 3 includes a driven wheel box 30, a slider 24, and a second bearing seat 31. The second wheel 34 inside the driven wheel box 30 is connected to the second transmission shaft 36 through a second key 37 for transmission. Two sets of second spherical roller bearings 32 are arranged on both sides of the second transmission shaft 36, one section of which is connected to the transmission shaft cover 35; the slider 24 is fixed on the slider mounting seat 27, and the upper and lower ends of the slider mounting seat 27 are respectively provided with a second tapered roller bearing 26 and a second thrust ball bearing 28. The second rotating shaft 2 9 is inserted into the slider mounting seat 27, and cooperates with the second tapered roller bearing 26 and the first thrust ball bearing 11 for transmission. The linear guide 23 is fixed on the frame 1, and the end of the second rotating shaft 29 is fixed by the second rotating shaft cover 25 with screws; the front and rear end faces of the driven wheel box 30 are respectively provided with two sets of eccentric wheel assemblies. When turning, the overall two sets of driven wheel system assemblies 3 can change with the bending of the track, and can either rotate on the frame 1 or slide on the frame 1 as the turning radius increases to adapt to the curved track line.

[0037] Specifically, the frame 1 is also equipped with a distance detection sensor, which can detect the position information of the front and rear end RGV vehicles to ensure safety.

[0038] Reference Figure 4 The eccentric wheel assembly includes an eccentric wheel mounting plate 38, a hexagonal nut 39, an eccentric shaft 40, a deep groove ball bearing 41 and an eccentric wheel 42. The eccentric shaft 40 is connected to the eccentric wheel 42 through two sets of deep groove ball bearings 41, and is installed on the eccentric wheel mounting plate 38 as a whole and locked by the hexagonal nut 39.

[0039] The standard parts used in the utility model can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt the conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0040] In the description of the present utility model, the terms "first" and "second" are used for descriptive purposes only and cannot 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. The meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0041] 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 a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection 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.

[0042] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0043] 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 representations of the above terms do not necessarily refer 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 and the features of the different embodiments or examples, unless they are contradictory.

[0044] In the drawings of the embodiments disclosed by the present invention, only the structures related to the embodiments disclosed by the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0045] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A turning RGV gear train structure device, characterized in that: include: frame; Two driving wheel train assemblies are installed on one side of the bottom of the frame and are arranged to travel on the outer circle of the turning track; Two driven wheel train assemblies are installed on the other side of the bottom of the frame and are arranged to travel on the inner circle of the turning track; The collector arm is installed at the bottom of the frame and located below the driving wheel train assembly, and is used to connect the busbar on the track to realize power supply to the trolley; The driving wheel train assembly includes a driving wheel box, an elastic coupling, and a connecting seat. The first wheel in the driving wheel box is connected to the first transmission shaft through a first key for transmission. Two sets of first spherical roller bearings are arranged on both sides of the first transmission shaft. The first spherical roller bearings are matched with the first bearing seat and installed on the side of the driving wheel box. The elastic coupling connects the first transmission shaft and the extended shaft of the reduction motor respectively. One end of the outer coupling cover is connected to the first bearing seat, and the other end is connected to the reduction motor, which is fixed with screws. The middle part of the coupling cover is open on all four sides, which is convenient for operators to tighten the elastic coupling. The connecting seat is connected to the frame by screws, and the first tapered roller bearing and the first thrust ball bearing are respectively arranged at the upper and lower ends of the connecting seat. The rotating shaft penetrates into the connecting seat and can rotate 360 ​​degrees at will in cooperation with the first tapered roller bearing and the first thrust ball bearing. The end of the rotating shaft is fixed by the first rotating shaft cover screw; Two sets of eccentric wheel assemblies are respectively arranged on the front and rear end faces of the driving wheel box. When turning, the two sets of driving wheel train assemblies can rotate in any direction as the track bends. The eccentric wheel assemblies can adjust the gap between the wheel and the track.

2. The RGV gear train structure device capable of turning according to claim 1, characterized in that: A cleaning brush is installed at the bottom of the frame relative to the driving wheel train assembly to assist in cleaning debris on the track.

3. The RGV gear train structure device capable of turning according to claim 1, characterized in that: A linear measuring sensor is installed on the frame to detect the real-time position of the RGV trolley and set the position of the RGV trolley.

4. The RGV gear train structure device capable of turning according to claim 1, characterized in that: The driven wheel train assembly includes a driven wheel box and a slider. The second wheel inside the driven wheel box is connected to the second transmission shaft through a second key for transmission. Two sets of second spherical roller bearings are arranged on both sides of the second transmission shaft, one section of which is connected to the transmission shaft cover plate. The slider is fixed on the slider mounting seat, and the second tapered roller bearing and the second thrust ball bearing are respectively arranged at the upper and lower ends of the slider mounting seat. The second transmission shaft penetrates into the slider mounting seat and cooperates with the second tapered roller bearing and the first thrust ball bearing for transmission. The linear guide is fixed on the frame, and the end of the second transmission shaft is fixed by the second rotating shaft cover screw; The front and rear end faces of the driven wheel box are each equipped with two sets of eccentric wheel assemblies. When turning, the two sets of driven wheel train assemblies can change with the curvature of the track. They can rotate on the frame or slide on the frame as the turning radius increases to adapt to the curved track line.

5. The turnable RGV gear train structure device according to claim 1 or 4, characterized in that: The eccentric wheel assembly comprises an eccentric wheel mounting plate, a hexagonal nut, an eccentric shaft, a deep groove ball bearing and an eccentric wheel. The eccentric shaft is connected to the eccentric wheel through two sets of deep groove ball bearings, is integrally mounted on the eccentric wheel mounting plate, and is locked by a hexagonal nut.

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