Driven steering wheel set and driving steering wheel set of AGV motor vehicle

Abstract

The utility model discloses a driven and driving steering wheel set of an AGV (automatic guided vehicle), which comprises a driven steering wheel set and a driving steering wheel set, the driven steering wheel set and the driving steering wheel set comprise a bracket, and the driven and driving steering wheel set is characterized in that wheel shafts are fixedly arranged on the front side and the rear side of the bracket, wheels are rotatably arranged on the outer surfaces of the wheel shafts, and the driven and driving steering wheel set further comprises a supporting base, a guide shaft is arranged at the bottom of the supporting base, the support is connected with the guide shaft in a sliding fit mode, a spring is arranged at the bottom of the supporting base, the spring is elastically arranged between the lower end face of the supporting base and the support, and the support, the baffle, the guide sleeve, the guide column, the spring, the supporting base and the guide shaft are arranged in the driven steering wheel set and the driving steering wheel set. A buffer type assembly is formed, the damping performance of the equipment can be improved, and compared with a polyurethane wheel, the wheel with the rubber support is larger in bearing capacity and more flexible in direction rotation.

Description

TECHNICAL FIELD

[0001] The utility model relates to power car technical field, concretely is a kind of driven and initiative rudder wheel group of AGV power car. BACKGROUND

[0002] In the technical field of automatic guided vehicle (AGV), the design of the rudder wheel group of the power car plays a crucial role in its running performance and stability. However, the AGV power car rudder wheel group in the prior art has deficiencies in many aspects: in terms of shock absorption performance, the traditional rudder wheel group lacks effective buffering structure. During the operation of the AGV power car, especially when passing over uneven ground, the impact force between the wheels and the ground is directly transmitted to the vehicle body, which not only causes instability of the goods, but also may cause damage to the vehicle structure and internal equipment, reducing the service life and operation reliability of the equipment. SUMMARY

[0003] The technical problem to be solved by the utility model is to provide a driven and initiative rudder wheel group of AGV power car, which can solve the above-mentioned problems in the prior art.

[0004] The utility model is implemented through the following technical solutions: the driven and initiative rudder wheel group of AGV power car of the utility model, including driven rudder wheel group and initiative rudder wheel group, driven rudder wheel group and initiative rudder wheel group include support, its characterized in that, the support front and back two sides are fixedly provided with wheel shaft, the outer surface of wheel shaft is rotatably provided with wheel, further including supporting base, the bottom of supporting base is provided with guide shaft, the support and the guide shaft are slidingly connected, the bottom of supporting base is provided with spring, the spring is elastically arranged between the lower end surface of supporting base and support.

[0005] In a further technical solution, the wheel is made of rubber material.

[0006] In a further technical solution, a guide sleeve is fixedly arranged in the support, a guide column is fixedly arranged at the bottom of the supporting base, the guide column is slidingly arranged in the guide sleeve, the spring is sleeved on the outer surface of the guide column, and the spring is arranged between the guide sleeve and the bottom of the supporting base.

[0007] In a further technical solution, the support is provided with a baffle, the support is arranged on the upper side of the baffle, and the baffle and the support are fixedly connected.

[0008] In a further technical solution, the driven rudder wheel group and the initiative rudder wheel group further include a rudder wheel slewing bearing mounting plate arranged on the upper side of the supporting base, and the rudder wheel slewing bearing mounting plate in the initiative rudder wheel group is fixedly connected with the gear ring.

[0009] Further technical solutions, the rudder wheel set is provided with a rotating assembly for rotatingly connecting the support base and the rudder wheel rotating support mounting plate, a rotating support inner ring is fixedly arranged on the rudder wheel rotating support mounting plate, and a gear ring is arranged on the outer surface of the rotating support inner ring, the rudder wheel set is provided with a steering transmission assembly for rotating the rudder wheel rotating support mounting plate and the rotating support inner ring around the gear ring, and the driving rudder wheel set is provided with a power assembly for rotating the wheel.

[0010] Further technical solutions, the rotating assembly comprises a swing shaft which is rotatably arranged on the top of the support base, and a plurality of upper bearing seats are arranged on the bottom of the rudder wheel rotating support mounting plate and are fixedly arranged on the outer surface of the swing shaft.

[0011] Further technical solutions, the steering transmission assembly is fixedly arranged on the mounting plate on one side of the rudder wheel rotating support mounting plate, a first speed reducer motor is arranged on the bottom of the mounting plate, a driving gear is powerfully connected and arranged on the top of the first speed reducer motor, and the driving gear is arranged in mesh with the gear ring.

[0012] Further technical solutions, the power assembly comprises a second speed reducer motor arranged on one side of the support, a driving sprocket is powerfully connected and arranged on one side of the second speed reducer motor, a driven sprocket is fixedly arranged on the outer surface of the wheel shaft, a chain is arranged on one side of the driven sprocket, and the outer surfaces of the driven sprocket and the driving sprocket are wound with the chain, so that the driving sprocket and the driven sprocket are powerfully connected.

[0013] Further technical solutions, the driven rudder wheel set and the driving rudder wheel set further comprise a swing frame, the swing frame is fixedly and matchingly connected with the gear ring, a bearing shaft is arranged in the swing frame, and bearing seats are rotatably arranged on the front and rear ends of the bearing shaft.

[0014] The utility model discloses beneficial effects are: one, through the modularization setting of driven rudder wheel set and driving rudder wheel set, then according to the working characteristic setting of driven rudder wheel set and driving rudder wheel set rotating assembly and power assembly, corresponding steering function and power function can be realized, and the support, baffle, guide sleeve, guide column, spring, support base and guide shaft in driven rudder wheel set and driving rudder wheel set form the buffer type assembly, can improve the shock absorption performance of equipment, and the wheel of rubber support is adopted, and compared with polyurethane wheel, the bearing capacity is larger, and the direction rotation is more flexible.

[0015] Two, through setting up the support base, guide shaft and support, the support is slidably connected between the middle part and the support base, then through setting up the spring in the left and right sides of the support, and setting up the guide column and guide sleeve on the spring, the elastic sliding between the support and the support base is more stable.

[0016] III. The structural design of the swing frame, bearing seat and load-bearing shaft, as well as the structural design of the upper bearing seat, swing shaft, lower bearing seat and support base, are designed to improve the degree of contact between the wheel and the ground, making it closer to the ground. Attached Figure Description

[0017] For ease of explanation, the present invention will be described in detail below with reference to specific embodiments and accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of the driven and active steering wheel assembly of an AGV power vehicle according to the present invention;

[0019] Figure 2 for Figure 1 A schematic diagram of the structure of the equipment from below;

[0020] Figure 3 for Figure 1 Schematic diagram of the center steering wheel assembly;

[0021] Figure 4 for Figure 3 A bottom-view structural diagram of the center steering wheel assembly;

[0022] Figure 5 for Figure 1 A schematic diagram of the internal structure of the center steering wheel assembly after the bracket is removed;

[0023] Figure 6 for Figure 1 Schematic diagram of the cross-sectional structure of the center steering wheel assembly;

[0024] Figure 7 for Figure 6 A further cross-sectional structural diagram of the center steering wheel assembly;

[0025] Figure 8 for Figure 7 A schematic diagram at point A in the middle;

[0026] In the diagram, the components are: swing frame 11, bearing housing 12, load-bearing shaft 13, gear ring 14, steering wheel slewing bearing mounting plate 21, limiting plate 22, drive gear 23, mounting plate 24, first geared motor 25, bracket 26, wheel 27, wheel axle 28, second geared motor 31, baffle 32, drive sprocket 34, driven sprocket 35, chain 36, swing shaft 41, limiting shaft 42, bolt 43, lower bearing housing 44, support base 45, guide shaft 46, spring 48, upper bearing housing 49, slewing bearing inner ring 51, guide sleeve 52, and guide post 53. Detailed Implementation

[0027] like Figures 1-8The utility model discloses a kind of AGV power vehicles, including driven and active rudder wheel groups, driven rudder wheel group and active rudder wheel group, driven rudder wheel group and active rudder wheel group include support 26, support 26 front and rear sides are fixedly provided with wheel shaft 28, wheel shaft 28 outer surface is rotatably provided with wheel 27, further include supporting base 45, supporting base 45 bottom is provided with guide shaft 46, support 26 is slidably connected with guide shaft 46, spring 48 is arranged between the lower end surface of supporting base 45 and support 26. Figure 1 The utility model discloses a kind of AGV power vehicles, including driven and active rudder wheel groups, driven rudder wheel group and active rudder wheel group, driven rudder wheel group and active rudder wheel group include support 26, support 26 front and rear sides are fixedly provided with wheel shaft 28, wheel shaft 28 outer surface is rotatably provided with wheel 27, further include supporting base 45, supporting base 45 bottom is provided with guide shaft 46, support 26 is slidably connected with guide shaft 46, spring 48 is arranged between the lower end surface of supporting base 45 and support 26.

[0028] Beneficially, wherein wheel 27 is made of rubber material.

[0029] Beneficially, wherein guide sleeve 52 is fixedly arranged in support 26, guide column 53 is fixedly arranged on the bottom of supporting base 45, guide column 53 is slidably arranged in guide sleeve 52, spring 48 is sleeved on the outer surface of guide column 53, and spring 48 is arranged between guide sleeve 52 and the bottom of supporting base 45.

[0030] Beneficially, wherein the bottom of support 26 is provided with baffle 32, support 26 is arranged on the upper side of baffle 32, baffle 32 is fixedly connected with support 26, and baffle 32 plays a limiting role for guide sleeve 52.

[0031] Beneficially, wherein driven rudder wheel group and active rudder wheel group further include rudder wheel slewing bearing mounting plate 21 arranged on the upper side of supporting base 45, rudder wheel slewing bearing mounting plate 21 is provided with gear ring 14 on the upper side, and rudder wheel slewing bearing mounting plate 21 in active rudder wheel group is fixedly connected with gear ring 14.

[0032] Beneficially, wherein rotation assembly is arranged between rudder wheel slewing bearing mounting plate 21 and supporting base 45 in driven rudder wheel group, and the rotation assembly rotatably connects supporting base 45 and rudder wheel slewing bearing mounting plate 21, rudder wheel slewing bearing mounting plate 21 is fixedly provided with slewing bearing inner ring 51, gear ring 14 is rotatably arranged on the outer surface of slewing bearing inner ring 51, steering transmission assembly is arranged in driven rudder wheel group, and the steering transmission assembly makes rudder wheel slewing bearing mounting plate 21 and slewing bearing inner ring 51 rotate around gear ring 14, and power assembly is arranged in active rudder wheel group, and the power assembly makes wheel 27 rotate.

[0033] Beneficially, wherein limit shaft 42 is arranged on the bottom of rudder wheel slewing bearing mounting plate 21, bolt 43 is threadedly connected in limit shaft 42, nut is threadedly connected on the outer surface of bolt 43, bolt 43 can move up and down relative to limit shaft 42 by rotating bolt 43, and the position is locked by nut.

[0034] Beneficially, the outer surface of the swing shaft 41 and the inner end wall of the gear ring 14 are provided with a spherical groove, and a ball is arranged in the spherical groove, and the swing bearing inner ring 51 is rotatably connected with the gear ring 14 through the ball and the spherical groove.

[0035] Beneficially, the rotating assembly includes a swing shaft 41 rotatably arranged on the top of the support base 45, and the bottom of the rudder wheel swing bearing mounting plate 21 is provided with a plurality of upper bearing seats 49, which are fixedly arranged on the outer surface of the swing shaft 41.

[0036] Beneficially, the steering transmission assembly is fixedly arranged on the mounting plate 24 on one side of the rudder wheel swing bearing mounting plate 21, and the bottom of the mounting plate 24 is provided with a first speed reducer motor 25, and the top of the first speed reducer motor 25 is provided with a driving gear 23 which is in meshing arrangement with the gear ring 14.

[0037] Beneficially, the power assembly includes a second speed reducer motor 31 arranged on one side of the bracket 26, and the second speed reducer motor 31 is provided with a driving sprocket 34 on one side, and the outer surface of the wheel shaft 28 is fixedly provided with a driven sprocket 35, and the driven sprocket 35 is provided with a chain 36 on one side, and the driven sprocket 35 is detachably fixedly connected with the wheel 27, and the outer surfaces of the driven sprocket 35 and the driving sprocket 34 are wound with the chain, and the chain powerfully connects the driving sprocket 34 and the driven sprocket 35.

[0038] Beneficially, the driven rudder wheel set and the driving rudder wheel set further include a swing frame 11 which is fixedly connected with the gear ring 14, and the swing frame 11 is provided with a load-bearing shaft 13, and the front and rear ends of the load-bearing shaft 13 are rotatably provided with bearing seats 12 which are used to be installed on the vehicle body, and the gear ring 14 is fixedly installed on the lower end of the swing frame 11.

[0039] Beneficially, the bottom of the swing frame 11 is provided with a limiting plate 22 which is located on one side of the gear ring 14, and the limiting plate 22 can play a limiting role to make the mounting plate 24 contact with the limiting plate 22 for limiting.

[0040] By elastically arranging a spring 48 between the bracket 26 and the support base 45, and by arranging a guide column 53 and a guide sleeve 52, the bracket 26 and the support base 45 can be elastically connected, so that the device has good shock absorption function, and according to the functions of the driven rudder wheel set and the driving rudder wheel set, the steering transmission assembly and the power assembly can be arranged on the bracket 26 to realize the functions of the driven rudder wheel and the driving rudder wheel.

[0041] When the device is in use, the bearing seat 12 needs to be installed on the lower side of the vehicle body, and through the structural design of the swing frame 11, the load-bearing shaft 13 and the bearing seat 12, the contact degree of the driven rudder wheel set and the driving rudder wheel set with the ground can be improved.

[0042] The support 26 is fixed with the wheel shaft 28 on both sides, and the wheel 27 is rotatably arranged on the outer surface of the wheel shaft 28. In the driving rudder wheel set, the second reduction motor 31 drives the driving sprocket 34 to rotate after working, drives the chain 36 and the wheel 27 to rotate through the transmission of the chain, and realizes the power transmission function of the wheel 27. Since two wheels 27 are arranged and each wheel 27 is driven by a separate power assembly, differential motion can be realized to make the steering more stable.

[0043] For the driven rudder wheel set, the first reduction motor 25 drives the driving gear 23 to rotate. Since the driving gear 23 is engaged with the outer surface of the gear ring 14, the rudder wheel rotary support mounting plate 21 can rotate in the gear ring 14. Since the rudder wheel rotary support mounting plate 21 is indirectly connected with the support 26, the support 26 can drive the wheel 27 to rotate after rotating, and the steering function is realized.

[0044] The rudder wheel rotary support mounting plate 21 and the upper bearing seat 49 are arranged, the swing shaft 41 is fixed with the upper bearing seat 49, and then the swing shaft 41 is rotatably connected with the lower bearing seat 44. The support base 45 and the support 26 can be adjusted in the front and back swing angle relative to the rudder wheel rotary support mounting plate 21, so that the wheel 27 can better resist the ground.

[0045] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any change or replacement without creative labor should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be limited by the protection scope defined in the claims.

Claims

1. A driven and driven steering wheel assembly for an AGV power vehicle, comprising a driven steering wheel assembly and a driven steering wheel assembly, wherein the driven steering wheel assembly and the driven steering wheel assembly include a bracket (26), characterized in that, The bracket (26) is fixedly provided with wheel axles (28) on the front and rear sides. Wheels (27) are rotatably provided on the outer surface of the wheel axles (28). It also includes a support base (45). A guide shaft (46) is provided at the bottom of the support base (45). The bracket (26) is slidably connected to the guide shaft (46). A spring (48) is provided at the bottom of the support base (45). The spring (48) is elastically disposed between the lower end face of the support base (45) and the bracket (26).

2. The driven and driving steering wheel assembly of an AGV power vehicle according to claim 1, characterized in that: The wheels (27) are made of rubber.

3. The driven and driving steering wheel assembly of an AGV power vehicle according to claim 1, characterized in that: A guide sleeve (52) is fixedly installed inside the bracket (26), and a guide post (53) is fixedly installed at the bottom of the support base (45). The guide post (53) is slidably installed inside the guide sleeve (52), and a spring (48) is sleeved on the outer surface of the guide post (53). The spring (48) is located between the guide sleeve (52) and the bottom of the support base (45).

4. The driven and driving steering wheel assembly of an AGV power vehicle according to claim 3, characterized in that: The bottom of the bracket (26) is provided with a baffle (32), and the bracket (26) is located on the upper side of the baffle (32). The baffle (32) and the bracket (26) are fixedly connected.

5. The driven and driving steering wheel assembly of an AGV power vehicle according to any one of claims 1-4, characterized in that: The driven steering wheel assembly and the driving steering wheel assembly also include a steering wheel slewing bearing mounting plate (21) disposed on the upper side of the support base (45). A gear ring (14) is disposed on the upper side of the steering wheel slewing bearing mounting plate (21). The steering wheel slewing bearing mounting plate (21) in the driving steering wheel assembly is fixedly connected to the gear ring (14).

6. The driven and driving steering wheel assembly of an AGV power vehicle according to claim 5, characterized in that: A rotating assembly is provided between the steering wheel slewing bearing mounting plate (21) and the support base (45) in the driven steering wheel assembly to rotatably connect the support base (45) and the steering wheel slewing bearing mounting plate (21). A slewing bearing inner ring (51) is fixedly provided on the steering wheel slewing bearing mounting plate (21). A gear ring (14) is rotatably provided on the outer surface of the slewing bearing inner ring (51). A steering transmission assembly is provided in the driven steering wheel assembly to make the steering wheel slewing bearing mounting plate (21) and the slewing bearing inner ring (51) rotate around the gear ring (14). A power assembly is provided in the driving steering wheel assembly to make the wheel (27) rotate.

7. The driven and driving steering wheel assembly of an AGV power vehicle according to claim 6, characterized in that: The rotating assembly includes a swing shaft (41) that is rotatably disposed on the top of the support base (45). The bottom of the steering wheel slewing support mounting plate (21) is provided with a plurality of upper bearing seats (49), which are fixedly disposed on the outer surface of the swing shaft (41).

8. The driven and driving steering wheel assembly of an AGV power vehicle according to claim 6, characterized in that: The steering transmission assembly is fixedly mounted on a mounting plate (24) on one side of the steering wheel slewing bearing mounting plate (21). A first reduction motor (25) is provided at the bottom of the mounting plate (24). A drive gear (23) is provided on the top of the first reduction motor (25). The drive gear (23) meshes with the gear ring (14).

9. The driven and driving steering wheel assembly of an AGV power vehicle according to claim 6, characterized in that: The power assembly includes a second geared motor (31) disposed on one side of the bracket (26), a drive sprocket (34) is connected to the second geared motor (31) on one side, a driven sprocket (35) is fixedly disposed on the outer surface of the wheel axle (28), a chain (36) is disposed on one side of the driven sprocket (35), and the chain is wound around the outer surfaces of the driven sprocket (35) and the drive sprocket (34), and the chain connects the drive sprocket (34) and the driven sprocket (35) in a power connection.

10. The driven and driving steering wheel assembly of an AGV power vehicle according to claim 5, characterized in that: The driven steering wheel assembly and the driven steering wheel assembly also include a swing frame (11), which is fixedly connected to the gear ring (14). A load-bearing shaft (13) is provided in the swing frame (11), and bearing seats (12) are rotatably provided at the front and rear ends of the load-bearing shaft (13). The gear ring (14) is fixedly installed at the lower end of the swing frame (11).

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