Functional vehicle chassis and functional vehicle

Abstract

The invention belongs to the technical field of quality inspection and inspection, and discloses a functional vehicle chassis and a functional vehicle. The functional vehicle chassis comprises a chassis frame, a steering shaft, a motor, a first transmission mechanism, a second transmission mechanism, a first driving shaft and a second driving shaft, the first driving shaft is rotatably arranged on the chassis frame, and the second driving shaft is rotatably arranged on the chassis frame. The first driving shaft and the second driving shaft extend in the left-right direction of the vehicle body and are arranged in parallel, the first transmission mechanism is in transmission connection with the first driving shaft, the second transmission mechanism is in transmission connection with the second driving shaft and the steering shaft at the same time, and the motor can be selectively in transmission connection with the first transmission mechanism or the second transmission mechanism. According to the functional vehicle chassis, linear driving, steering and forward driving during steering can be achieved only through one motor, use of driving pieces is reduced, and the device manufacturing cost is low.

Description

Technical Field

[0001] The present invention relates to the technical field of quality inspection and patrol, and in particular to a functional vehicle chassis and a functional vehicle. Background Art

[0002] The chassis is an important component that supports and installs various vehicle components and assemblies, receives power from the power source, enables the vehicle to move, and ensures normal driving. In particular, the chassis of functional vehicles, due to the different functions achieved by different functional vehicles, the structure of the functional vehicle chassis also needs to be designed differently. For example, in the process of industrial production, it is necessary to inspect the external environment of the factory to eliminate dangerous factors and ensure safe production. However, with the gradual development of my country's productivity, industrial production plants have gradually expanded, manual inspections are time-consuming and labor-intensive, work efficiency is low, and the degree of automation is low. Therefore, more and more factories are assembled into inspection vehicles by adding chassis to the inspection box to achieve automatic inspection.

[0003] In the prior art, a security patrol vehicle has a chassis including a motion mechanism, an offset mechanism, etc., and its drive mechanism and offset mechanism are coordinated through a motion motor, a control motor, a belt, a gear, etc., thereby driving the entire security patrol vehicle to travel or turn. However, since the security patrol vehicle uses two sets of drive motors to respectively realize the straight-line travel and turning of the security patrol vehicle, there are problems of low transmission efficiency and high device manufacturing cost. Summary of the invention

[0004] The purpose of the present invention is to provide a functional vehicle chassis and a functional vehicle, wherein the functional vehicle chassis can utilize one motor to achieve straight-line driving or turning driving while reducing the number of motors used.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] On the one hand, a functional vehicle chassis is provided, which is used to be connected to a vehicle body. The functional vehicle chassis includes a chassis frame, a steering shaft and a motor. A steering wheel is rotatably connected to the steering shaft, and the steering shaft is vertically connected to the chassis frame. The functional vehicle chassis also includes: a first transmission mechanism, a second transmission mechanism, a first drive shaft rotatably arranged on the chassis frame, and a second drive shaft rotatably arranged on the chassis frame. The first drive shaft and the second drive shaft are arranged in parallel, and the first drive shaft and the second drive shaft both extend in the left and right directions of the vehicle body. The first transmission mechanism is transmission-connected to the first drive shaft, and the second transmission mechanism is transmission-connected to the second drive shaft and the steering shaft at the same time. The motor can be selectively transmission-connected to the first transmission mechanism or the second transmission mechanism.

[0007] Preferably, the functional vehicle chassis also includes a first ratchet and ratchet mechanism and a second ratchet and ratchet mechanism. When the motor rotates forward, the first ratchet and ratchet mechanism can connect the power transmission between the motor and the first transmission mechanism, and the second ratchet and ratchet mechanism can disconnect the power between the motor and the second transmission mechanism. When the motor rotates reversely, the first ratchet and ratchet mechanism can disconnect the power transmission between the motor and the first transmission mechanism, and the second ratchet and ratchet mechanism can connect the power transmission between the motor and the second transmission mechanism.

[0008] Preferably, the functional vehicle chassis also includes a first power shaft, which is transmission-connected to the motor, and the first ratchet and ratchet mechanism includes a first ratchet and a first ratchet, the first ratchet is transmission-connected to the first transmission mechanism, and the first ratchet is movably connected to the first power shaft, and when the motor rotates forward, the first ratchet can engage with the first ratchet, and when the motor rotates reversely, the first ratchet can disengage from the first ratchet.

[0009] Preferably, the functional vehicle chassis also includes a second power shaft, which is transmission connected to the motor, and the second ratchet and ratchet mechanism includes a second ratchet and a second ratchet, the second ratchet is transmission connected to the second transmission mechanism, and the second ratchet is movably connected to the second power shaft, when the motor rotates forward, the second ratchet can be disengaged from the second ratchet, and when the motor rotates reversely, the second ratchet can be engaged with the second ratchet.

[0010] Preferably, the motor is fixedly connected to the first power shaft, and the functional vehicle chassis further comprises a first synchronous belt, which connects the first power shaft and the second power shaft.

[0011] Preferably, the second transmission mechanism includes a power input shaft, a gear transmission assembly and a second synchronous belt, the power input shaft and the second ratchet are fixedly connected, the gear transmission assembly is transmission-connected between the power input shaft and the second drive shaft, the functional vehicle chassis also includes a steering transmission assembly and a transverse shaft, the second synchronous belt connects the power input shaft and the transverse shaft, and the steering transmission assembly is transmission-connected between the transverse shaft and the steering shaft.

[0012] Preferably, the steering transmission assembly includes a connecting shaft, a steering gear, a first bevel gear and a second bevel gear, the first bevel gear is coaxially fixed on the steering shaft, the second bevel gear and the steering gear are coaxially fixed to the connecting shaft, and the first bevel gear and the second bevel gear are meshed; the steering transmission assembly also includes an incomplete gear and an incomplete gear ring, the incomplete gear and the incomplete gear ring are coaxially fixed to the horizontal axis, the steering gear is located between the incomplete gear and the incomplete gear ring, the incomplete gear and the incomplete gear ring are both able to engage with or disengage from the steering gear, and when one of the incomplete gear and the incomplete gear ring is able to engage with the steering gear, the other is disengaged from the steering gear.

[0013] Preferably, the functional vehicle chassis further comprises a support plate fixedly arranged on the chassis frame, and the connecting shaft and the support plate are transitionally matched.

[0014] Preferably, the functional vehicle chassis includes two steering shafts, each steering shaft is rotatably provided with a steering wheel, the functional vehicle chassis also includes a third synchronous belt, the two steering shafts are connected by the third synchronous belt, and the second transmission mechanism is transmission-connected to one of the steering shafts.

[0015] On the other hand, a functional vehicle is provided, which comprises a vehicle body, a camera and the functional vehicle chassis of any one of claims 1 to 9, wherein the vehicle body is supported on a chassis frame of the functional vehicle chassis, and the camera is fixedly mounted on the vehicle body.

[0016] The beneficial effects of the present invention are: providing a functional vehicle chassis, which can achieve straight-line driving, turning and forward driving during turning by using only one motor, reducing the use of driving parts and reducing the manufacturing cost of the device.

[0017] Provided is a functional vehicle, which reduces the use of driving parts, has a compact overall structure and low manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a first-perspective axonometric view of the functional vehicle chassis provided by the present invention;

[0019] Figure 2 It is a first-view axonometric view of the functional vehicle provided by the present invention;

[0020] Figure 3 is a second perspective isometric view of the functional vehicle provided by the present invention;

[0021] Figure 4 It is a schematic diagram of a first ratchet and ratchet mechanism and a second ratchet and ratchet mechanism of a functional vehicle chassis provided by the present invention;

[0022] Figure 5 yes Figure 1 A partial enlarged view of part A.

[0023] In the figure: 1, vehicle body; 2, chassis frame; 3, steering shaft; 4, steering wheel; 5, motor; 6, first transmission mechanism;

[0024] 7. Second transmission mechanism; 71. Power input shaft; 72. Gear transmission assembly; 73. Second synchronous belt;

[0025] 8. First drive shaft; 9. Second drive shaft; 10. First drive wheel; 11. Second drive wheel;

[0026] 12. First ratchet wheel and ratchet tooth mechanism; 121. First ratchet wheel; 122. First ratchet tooth;

[0027] 13. Second ratchet wheel and ratchet tooth mechanism; 131. Second ratchet wheel; 132. Second ratchet tooth;

[0028] 14. First power shaft; 15. Second power shaft; 16. First synchronous belt;

[0029] 17. Steering transmission assembly; 171. Connecting shaft; 172. Steering gear; 173. First bevel gear; 174. Second bevel gear; 175. Incomplete gear; 176. Incomplete ring gear;

[0030] 18. horizontal axis; 19. support plate; 20. third synchronous belt; 21. camera; 22. first position-limiting member; 23. first elastic member; 24. second position-limiting member; 25. second elastic member. DETAILED DESCRIPTION

[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0032] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" 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.

[0033] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0034] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0035] Please refer to Figures 1 to 3 On the one hand, the present embodiment provides a functional vehicle chassis, which is used to connect with the vehicle body 1, and includes a chassis frame 2, a steering shaft 3 and a motor 5. The steering shaft 3 is rotatably connected with a steering wheel 4, and the steering shaft 3 is vertically connected to the chassis frame 2. The functional vehicle chassis also includes: a first transmission mechanism 6, a second transmission mechanism 7, a first drive shaft 8 rotatably arranged on the chassis frame 2, and a second drive shaft 9 rotatably arranged on the chassis frame 2. The first drive shaft 8 and the second drive shaft 9 are arranged in parallel, and the first drive shaft 8 and the second drive shaft 9 both extend along the left and right directions of the vehicle body 1. The first transmission mechanism 6 is connected to the first drive shaft 8 by transmission, and the second transmission mechanism 7 is connected to the second drive shaft 9 and the steering shaft 3 by transmission at the same time. The motor 5 can be selectively connected to the first transmission mechanism 6 or the second transmission mechanism 7 by transmission. Specifically, the first drive shaft 8 is fixedly mounted with a first drive wheel 10, and the second drive shaft 9 is fixedly mounted with a second drive wheel 11. With such a configuration, when the motor 5 is connected to the first transmission mechanism 6, the first transmission mechanism 6 connects the power transmission between the motor 5 and the first drive shaft 8, and the first drive shaft 8 drives the first drive wheel 10 to rotate, thereby driving the functional vehicle to move forward in a straight line; when the motor 5 is connected to the second transmission mechanism 7, the second transmission mechanism 7 connects the power transmission between the motor 5 and the second drive shaft 9 and the motor 5 and the steering shaft 3, respectively, and while the second drive shaft 9 drives the second drive wheel 11 to rotate, the steering shaft 3 rotates to drive the steering wheel 4 to turn, thereby driving the functional vehicle to turn while still having the power to move forward. The functional vehicle chassis can realize multiple functions of straight-line driving, turning, and forward driving during turning with only one motor 5, thereby reducing the manufacturing cost of the device.

[0036] Optionally, the functional vehicle chassis further comprises a first ratchet and ratchet mechanism 12 and a second ratchet and ratchet mechanism 13. When the motor 5 rotates forward, the first ratchet and ratchet mechanism 12 can connect the power transmission between the motor 5 and the first transmission mechanism 6, and the second ratchet and ratchet mechanism 13 can disconnect the power between the motor 5 and the second transmission mechanism 7. When the motor 5 rotates reversely, the first ratchet and ratchet mechanism 12 can disconnect the power transmission between the motor 5 and the first transmission mechanism 6, and the second ratchet and ratchet mechanism 13 can connect the power transmission between the motor 5 and the second transmission mechanism 7. With such an arrangement, the engagement or disengagement state of the first ratchet and ratchet mechanism 12 and the second ratchet and ratchet mechanism 13 can be changed by changing the direction of the motor 5, so that the motor 5 can be selectively connected to the first transmission mechanism 6 or the second transmission mechanism 7, thereby making the functional vehicle go straight or turn. The first ratchet and ratchet mechanism 12 and the second ratchet and ratchet mechanism 13 have simple structures, are safe and reliable, and the switching between power transmission is smoother.

[0037] In other embodiments, a first clutch mechanism and a second clutch mechanism may also be provided. When the functional vehicle is moving straight, the first clutch mechanism can connect the power transmission between the motor 5 and the first transmission mechanism 6, and the second clutch mechanism can disconnect the power between the motor 5 and the second transmission mechanism 7; when the functional vehicle is turning, the first clutch mechanism can disconnect the power transmission between the motor 5 and the first transmission mechanism 6, and the second clutch mechanism can connect the power transmission between the motor 5 and the second transmission mechanism 7.

[0038] Optionally, see Figures 1 to 4 The functional vehicle chassis also includes a first power shaft 14, which is transmission-connected to the motor 5, and a first ratchet and ratchet mechanism 12 includes a first ratchet 121 and a first ratchet 122, the first ratchet 121 is transmission-connected to the first transmission mechanism 6, and the first ratchet 122 is movably connected to the first power shaft 14. When the motor 5 rotates forward, the first ratchet 121 can mesh with the first ratchet 122, and when the motor 5 rotates reversely, the first ratchet 121 can disengage from the first ratchet 122. In this way, by adjusting the forward and reverse rotation of the motor 5, the meshing state of the first ratchet and ratchet mechanism 12 can be changed, thereby connecting or disconnecting the power transmission between the motor 5 and the first transmission mechanism 6.

[0039] In some embodiments, please refer to Figure 4, a first limiting member 22 and a first elastic member 23 are respectively provided on both sides of the first ratchet tooth 122. When the motor 5 rotates forward, the motor 5 drives the first power shaft 14 to rotate forward, and the first power shaft 14 can drive the first limiting member 22 and the first ratchet tooth 122 to rotate synchronously. Along the rotation direction of the first ratchet tooth 122, the first limiting member 22 is located upstream of the first ratchet tooth 122, and the first elastic member 23 is located downstream of the first ratchet tooth 122. The first ratchet tooth 122 is meshed in the tooth groove of the first ratchet wheel 121. The first limiting member 22 prevents the first ratchet tooth 122 from disengaging from the tooth groove of the first ratchet wheel 121, so that the first ratchet tooth 122 always remains meshed with the first ratchet wheel 121, thereby realizing the first ratchet wheel 121 and the first ratchet tooth 122. The first gear 122 is engaged with the first ratchet wheel 121, and the first gear 123 is engaged with the first gear 124. When the first gear 124 engages with the first gear 125, the first gear 126 is engaged with the first gear 127. When the first gear 126 engages with the first gear 128, the first gear 127 is engaged with the first gear 129. When the first gear 128 engages with the first gear 129, the first gear 126 is engaged with the first gear 129. When the first gear 128 engages with the first gear 129, the first gear 126 is engaged with the first gear 129. When the first gear 128 engages with the first gear 129

[0040] Optionally, the functional vehicle chassis further comprises a second power shaft 15, the second power shaft 15 is transmission-connected with the motor 5, the second ratchet and ratchet mechanism 13 comprises a second ratchet 131 and a second ratchet 132, the second ratchet 131 is transmission-connected with the second transmission mechanism 7, the second ratchet 132 is movably connected with the second power shaft 15, when the motor 5 rotates forward, the second ratchet 131 can be disengaged from the second ratchet 132, when the motor 5 rotates reversely, the second ratchet 131 can be engaged with the second ratchet 132. With such an arrangement, the meshing state of the second ratchet and ratchet mechanism 13 can be changed by the forward and reverse rotation of the motor 5, thereby connecting or disconnecting the power transmission between the motor 5 and the second transmission mechanism 7.

[0041] In some embodiments, a second stopper 24 and a second elastic member 25 are respectively provided on both sides of the second ratchet 132. When the motor 5 rotates forward, the second stopper 24 is located downstream of the second ratchet 132, and the second elastic member 25 is located upstream of the second ratchet 132. The motor 5 drives the second power shaft 15 to rotate forward, and the second power shaft can drive the second ratchet 132 to rotate. When the second ratchet 132 and the second ratchet wheel 131 are meshed, as the second power shaft 15 rotates, the second ratchet 132 can rotate to one side of the second elastic member 25, and the second elastic member 25 is elastically deformed, and the second ratchet 132 can be disengaged from the tooth groove of the second ratchet wheel 131, the second ratchet 132 cannot be meshed with the second ratchet wheel 131, and the second ratchet 132 cannot drive the second ratchet wheel 131 to rotate, and the power transmission between the motor 5 and the second transmission mechanism 7 is disconnected; when the motor 5 rotates reversely, the motor 5 drives the second power shaft 15 In reverse, the second power shaft 15 can drive the second limit member 24 and the second ratchet 132 to rotate synchronously. Along the rotation direction of the second ratchet 132, the second limit member 24 is located upstream of the second ratchet 132, and the second elastic member 25 is located downstream of the second ratchet 132. The second ratchet 132 is engaged in the tooth groove of the second ratchet wheel 131. The second limit member 24 prevents the second ratchet 132 from disengaging from the tooth groove of the second ratchet wheel 131, so that the second ratchet 132 and the second ratchet wheel 131 always remain engaged, realizing the synchronous rotation of the second ratchet wheel 131 and the second ratchet tooth 132, thereby connecting the motor 5 and the second transmission mechanism 7 for power transmission. The motor 5 simultaneously drives the second drive shaft 9 and the steering shaft 3 to rotate. The functional vehicle chassis enables the functional vehicle to turn while providing the functional vehicle with a driving force to move forward.

[0042] Optionally, see Figure 1 and Figure 2 The motor 5 is fixedly connected to the first power shaft 14, and the functional vehicle chassis further includes a first synchronous belt 16, which connects the first power shaft 14 and the second power shaft 15. With such an arrangement, the first synchronous belt 16 has accurate transmission during operation, and when the motor 5 rotates, it can drive the first power shaft 14 and the second power shaft 15 to rotate synchronously.

[0043] In other embodiments, the motor 5 may also be respectively connected to the first power shaft 14 and the second power shaft 15 through two synchronous belts. Compared with other embodiments, the solution in this embodiment makes the overall functional vehicle chassis structure compact and facilitates the spatial arrangement of the functional vehicle chassis.

[0044] Optionally, the second transmission mechanism 7 includes a power input shaft 71, a gear transmission assembly 72 and a second synchronous belt 73, the power input shaft 71 and the second ratchet 131 are fixedly connected, the gear transmission assembly 72 is transmission-connected between the power input shaft 71 and the second drive shaft 9, and the functional vehicle chassis also includes a steering transmission assembly 17 and a transverse shaft 18, the second synchronous belt 73 connects the power input shaft 71 and the transverse shaft 18, and the steering transmission assembly 17 is transmission-connected between the transverse shaft 18 and the steering shaft 3. The second transmission mechanism 7 has an input shaft as a power input end, and has two power output ends, the second drive shaft 9 and the transverse shaft 18, and the transverse shaft 18 is transmission-connected with the steering shaft 3. With such a configuration, the power provided by the motor 5 can be transmitted to the second drive shaft 9 and the steering shaft 3 respectively, so that the functional vehicle chassis can achieve steering and forward drive during steering, simplifying the transmission structure and reducing the production cost of the equipment.

[0045] Optionally, see Figure 5 The steering transmission assembly 17 includes a connecting shaft 171, a steering gear 172, a first bevel gear 173 and a second bevel gear 174, the first bevel gear 173 is coaxially fixed on the steering shaft 3, the second bevel gear 174 and the steering gear 172 are coaxially fixed to the connecting shaft 171, and the first bevel gear 173 and the second bevel gear 174 are meshed; the steering transmission assembly 17 also includes an incomplete gear 175 and an incomplete ring gear 176, the incomplete gear 175 and the incomplete ring gear 176 are coaxially fixed to the horizontal shaft 18, the steering gear 172 is located between the incomplete gear 175 and the incomplete ring gear 176, the incomplete gear 175 and the incomplete ring gear 176 can be meshed with or disengaged from the steering gear 172, and when one of the incomplete gear 175 and the incomplete ring gear 176 is meshed with the steering gear 172, the other is separated from the steering gear 172. In this configuration, when one of the incomplete gear 175 and the incomplete ring gear 176 can mesh with the steering gear 172, the steering gear 172 rotates to drive the second bevel gear 174 to rotate, and the first bevel gear 173 meshes with the second bevel gear 174 and rotates, thereby driving the steering shaft 3 to rotate.

[0046] Specifically, in this embodiment, the incomplete gear 175 has a first tooth, and the incomplete gear ring 176 has a second tooth. It should be noted that when driving in a straight line, the steering wheel 4 is in the same direction as the first driving wheel 10 and the second driving wheel 11, and the position of the steering gear 172 can remain stable. As the transverse shaft 18 rotates, the incomplete gear 175 and the incomplete gear ring 176 rotate synchronously. When one of the incomplete gear 175 and the incomplete gear ring 176 is meshed with the steering gear 172, for example, when the incomplete gear 175 is meshed with the steering gear 172, the incomplete gear ring 176 is separated from the steering gear 172. At this time, the incomplete gear 175 can drive the steering gear 172 to rotate through an engagement angle, and then the steering gear 172 is separated from the incomplete gear 175, and the position of the steering gear 172 can remain stable; as the transverse shaft 18 continues to rotate by a set angle, the incomplete gear ring 176 is meshed with the steering gear 172, the incomplete gear 175 is separated from the steering gear 172, and the incomplete gear ring 176 can drive the steering gear 172 to rotate in the opposite direction through an engagement angle, so that the steering gear 172 returns to the initial state. At this time, the steering wheel is in the same direction as the first drive wheel 10 and the second drive wheel 11.

[0047] It should be understood that the set angle can be set according to actual needs. For example, when the functional vehicle chassis is used as an inspection vehicle, the inspection vehicle automatically travels around the periphery of the factory. When encountering a corner, it needs to turn an angle. The set angle can ensure that the functional vehicle can turn the corner.

[0048] Optionally, see Figures 1 to 3 The functional vehicle chassis also includes a support plate 19 fixedly arranged on the chassis frame 2, and the connecting shaft 171 and the support plate 19 are transitionally matched. In this way, the support plate 19 supports and limits the connecting shaft 171. During the turning process, when the incomplete gear ring 176 and the incomplete gear 175 are both disengaged from the steering gear 172, the position of the connecting shaft 171 can be kept stable, thereby making the steering gear 172 stable; when one of the incomplete gear 175 and the incomplete gear ring 176 can be engaged with the steering gear 172, the driving force provided by the motor 5 can overcome the friction force of the transitional match between the connecting shaft 171 and the support plate 19, so that the connecting shaft 171 rotates relative to the support plate 19, thereby making the steering wheel 4 complete the steering.

[0049] In other embodiments, a plurality of continuous first teeth may be provided on the incomplete gear 175, and a plurality of continuous second teeth may be provided on the incomplete gear ring 176. When any first tooth on the incomplete gear 175 is meshed with the steering gear 172, each second tooth on the incomplete gear ring 176 is separated from the steering gear 172; when any first tooth on the incomplete gear ring 176 is meshed with the steering gear 172, each second tooth on the incomplete gear 175 is separated from the steering gear 172.

[0050] In other embodiments, a worm gear mechanism may be provided to replace the first bevel gear 173 and the second bevel gear 174, the worm gear is fixed on the steering shaft 3, the worm is fixed on the connecting shaft 171, and the worm gear is meshed with the worm. When one of the incomplete gear 175 and the incomplete gear ring 176 is able to mesh with the steering gear 172, the steering gear 172 rotates and the worm rotates, and the worm gear meshes with the worm and rotates, thereby driving the steering shaft 3 to rotate.

[0051] Optionally, see Figure 1 , Figure 2 and Figure 5 The functional vehicle chassis includes two steering shafts 3, each steering shaft 3 is rotatably provided with a steering wheel 4, and the functional vehicle chassis also includes a third synchronous belt 20, the two steering shafts 3 are connected by the third synchronous belt 20, and the second transmission mechanism 7 is connected to one of the steering shafts 3. In this way, the third synchronous belt 20 is set so that the second transmission mechanism 7 only needs to be connected to one of the steering shafts 3 to achieve the steering synchronization of the two steering shafts 3, thereby enhancing the steering stability of the functional vehicle chassis, and at the same time making the functional vehicle chassis simple in structure and reliable in transmission.

[0052] On the other hand, please refer to Figure 2 and Figure 3 , a functional vehicle is provided, the functional vehicle comprises a body 1, a camera 21 and the functional vehicle chassis, the body 1 is supported on a chassis frame 2 of the functional vehicle chassis, and the camera 21 is fixedly mounted on the body 1. Optionally, the functional vehicle comprises a plurality of cameras 21, and such an arrangement reduces the blind spots of the cameras 21, making the functional vehicle safer and more reliable.

[0053] In some embodiments, the functional vehicle is a factory inspection vehicle, which further includes a control component, which sets the running track of the functional vehicle according to the actual inspection path of the factory. Based on the running speed and wheel diameter of the functional vehicle, the control component calculates and determines the various time points at which the functional vehicle needs to turn, and based on the turning angles of each turn, controls the motor 5 to switch forward or reverse at the corresponding time point, so as to adapt to the inspection of factories of different sizes. The factory inspection vehicle does not require manual operation, which saves time and effort and improves work efficiency. The functional vehicle can also be used for automated operations and production in scenes such as roads and farms.

[0054] The working principle of this functional car is as follows:

[0055] When the functional vehicle needs to travel in a straight line, the motor 5 rotates forward, thereby driving the second power shaft 15 to rotate forward, and the second power shaft 15 drives the second ratchet 132 to rotate forward, and the second ratchet 132 disengages from the second ratchet wheel 131, so that the power transmission between the motor 5 and the second transmission mechanism 7 is disconnected, the second drive shaft 9 will not rotate actively, and the steering shaft 3 will not rotate; at the same time, the second power shaft 15 drives the first power shaft 14 to rotate forward through the first synchronous belt 16, thereby driving the first ratchet 122 to rotate forward, and the first ratchet wheel 121 engages with the first ratchet 122 and rotates forward, driving the first drive shaft 8 to rotate through the first transmission mechanism 6, and then driving the first drive wheel 10 to rotate, cooperating with the steering wheel 4 to drive the functional vehicle to travel in a straight line.

[0056] When the functional vehicle needs to turn, the motor 5 reverses to drive the second power shaft 15 to rotate in the opposite direction, the second power shaft 15 drives the second ratchet 132 to rotate in the opposite direction, the second ratchet 131 meshes with the second ratchet 132 and rotates in the opposite direction, the second ratchet 132 drives the power input shaft 71 to rotate in the opposite direction, and transmits the power to the second drive shaft 9 and the transverse shaft 18 respectively through the gear transmission assembly 72 and the second synchronous belt 73, the second drive shaft 9 rotates forward to drive the second drive wheel 11 to rotate, so that the functional vehicle still has the driving force to move forward while turning, similarly, the second power shaft 15 drives the first power shaft 14 to rotate in the opposite direction through the first synchronous belt 16, and the motor 5 and the first ratchet mechanism 12 are used to drive the first power shaft 14 to rotate in the opposite direction. The power transmission between the first transmission mechanism 6 is disconnected, and the first drive shaft 8 will not rotate actively; at the same time, the horizontal shaft 18 rotates forward and drives the incomplete ring gear 176 and the incomplete gear 175 to rotate forward. When the steering gear 172 and the incomplete ring gear 176 are meshed, the steering gear 172 drives the second bevel gear 174 to rotate forward through the connecting shaft 171, thereby driving the steering shaft 3 to rotate through the first bevel gear 173 meshed with the second bevel gear 174, and the steering wheel 4 turns. When the steering gear 172 and the incomplete ring gear 176 are completely meshed, the steering gear 172 meshes with the incomplete gear 175 again and rotates in the opposite direction, and similarly drives the steering wheel 4 back to the positive position, so as to facilitate continued straight driving after turning.

[0057] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A functional vehicle chassis, the functional vehicle chassis is used to be connected to a vehicle body (1), the functional vehicle chassis comprises a chassis frame (2), a steering shaft (3) and a motor (5), the steering shaft (3) is rotatably connected to a steering wheel (4), the steering shaft (3) is vertically connected to the chassis frame (2), and is characterized in that: The functional vehicle chassis further comprises: a first transmission mechanism (6), a second transmission mechanism (7), a first drive shaft (8) rotatably arranged on the chassis frame (2), and a second drive shaft (9) rotatably arranged on the chassis frame (2); the first drive shaft (8) and the second drive shaft (9) are arranged in parallel, and the first drive shaft (8) and the second drive shaft (9) both extend along the left-right direction of the vehicle body (1); the first transmission mechanism (6) is transmission-connected to the first drive shaft (8); the second transmission mechanism (7) is transmission-connected to the second drive shaft (9) and the steering shaft (3) at the same time; and the motor (5) can be selectively transmission-connected to the first transmission mechanism (6) or the second transmission mechanism (7).

2. The functional vehicle chassis according to claim 1, characterized in that: The functional vehicle chassis further comprises a first ratchet and ratchet mechanism (12) and a second ratchet and ratchet mechanism (13); when the motor (5) rotates forward, the first ratchet and ratchet mechanism (12) can connect the power transmission between the motor (5) and the first transmission mechanism (6), and the second ratchet and ratchet mechanism (13) can disconnect the power between the motor (5) and the second transmission mechanism (7); when the motor (5) rotates reversely, the first ratchet and ratchet mechanism (12) can disconnect the power transmission between the motor (5) and the first transmission mechanism (6), and the second ratchet and ratchet mechanism (13) can connect the power transmission between the motor (5) and the second transmission mechanism (7).

3. The functional vehicle chassis according to claim 2, characterized in that: The functional vehicle chassis also includes a first power shaft (14), the first power shaft (14) is transmission-connected to the motor (5), the first ratchet and ratchet mechanism (12) includes a first ratchet (121) and a first ratchet (122), the first ratchet (121) is transmission-connected to the first transmission mechanism (6), the first ratchet (122) is movably connected to the first power shaft (14), when the motor (5) rotates forward, the first ratchet (121) can mesh with the first ratchet (122), and when the motor (5) rotates reversely, the first ratchet (121) can disengage from the first ratchet (122).

4. The functional vehicle chassis according to claim 3, characterized in that: The functional vehicle chassis also includes a second power shaft (15), the second power shaft (15) is transmission-connected to the motor (5), the second ratchet and ratchet mechanism (13) includes a second ratchet (131) and a second ratchet tooth (132), the second ratchet (131) is transmission-connected to the second transmission mechanism (7), the second ratchet tooth (132) is movably connected to the second power shaft (15), when the motor (5) rotates forward, the second ratchet (131) can be disengaged from the second ratchet tooth (132), and when the motor (5) rotates reversely, the second ratchet (131) can be meshed with the second ratchet tooth (132).

5. The functional vehicle chassis according to claim 4, characterized in that: The motor (5) is fixedly connected to the first power shaft (14), and the functional vehicle chassis further comprises a first synchronous belt (16), wherein the first synchronous belt (16) connects the first power shaft (14) and the second power shaft (15).

6. The functional vehicle chassis according to claim 4, characterized in that: The second transmission mechanism (7) comprises a power input shaft (71), a gear transmission assembly (72) and a second synchronous belt (73); the power input shaft (71) and the second ratchet (131) are fixedly connected; the gear transmission assembly (72) is transmission-connected between the power input shaft (71) and the second drive shaft (9); the functional vehicle chassis further comprises a steering transmission assembly (17) and a transverse shaft (18); the second synchronous belt (73) connects the power input shaft (71) and the transverse shaft (18); the steering transmission assembly (17) is transmission-connected between the transverse shaft (18) and the steering shaft (3).

7. The functional vehicle chassis according to claim 6, characterized in that: The steering transmission assembly (17) comprises a connecting shaft (171), a steering gear (172), a first bevel gear (173) and a second bevel gear (174); the first bevel gear (173) is coaxially fixed on the steering shaft (3); the second bevel gear (174) and the steering gear (172) are both coaxially fixed on the connecting shaft (171); the first bevel gear (173) and the second bevel gear (174) are meshed; The steering transmission assembly (17) further comprises an incomplete gear (175) and an incomplete gear ring (176), wherein the incomplete gear (175) and the incomplete gear ring (176) are both coaxially fixed to the transverse shaft (18), and the steering gear (172) is located between the incomplete gear (175) and the incomplete gear ring (176), and the incomplete gear (175) and the incomplete gear ring (176) are both capable of engaging with or disengaging from the steering gear (172), and when one of the incomplete gear (175) and the incomplete gear ring (176) is capable of engaging with the steering gear (172), the other is disengaged from the steering gear (172).

8. The functional vehicle chassis according to claim 7, characterized in that: The functional vehicle chassis also includes a support plate (19) fixedly arranged on the chassis frame (2), and the connecting shaft (171) and the support plate (19) are transitionally matched.

9. The functional vehicle chassis according to any one of claims 1 to 8, characterized in that: The functional vehicle chassis comprises two steering shafts (3), each of which is rotatably provided with a steering wheel (4). The functional vehicle chassis also comprises a third synchronous belt (20), the two steering shafts (3) are connected via the third synchronous belt (20), and the second transmission mechanism (7) is in transmission connection with one of the steering shafts (3).

10. A functional vehicle, characterized in that: The functional vehicle comprises a vehicle body (1), a camera (21) and the functional vehicle chassis according to any one of claims 1 to 9, the vehicle body (1) is supported on the chassis frame (2) of the functional vehicle chassis, and the camera (21) is fixedly mounted on the vehicle body (1).

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