Chassis and functional vehicle

Abstract

The utility model belongs to the technical field of quality inspection and inspection, and discloses a chassis and a functional vehicle. The chassis is used for being connected with a vehicle body and comprises a chassis frame, a steering shaft, a first driving shaft, a first transmission mechanism and a motor, a steering wheel is installed on the steering shaft, the steering shaft is perpendicularly and rotatably connected to the chassis frame, the first driving shaft is rotatably installed on the chassis frame, and a first driving wheel is installed on the first driving shaft; the first driving shaft extends in the left-right direction of the vehicle body, the motor is in transmission connection with the first driving shaft, and the first transmission mechanism is in transmission connection with the first driving shaft and the steering shaft at the same time. The motor of the chassis can provide power for the first driving shaft and the steering shaft at the same time, steering and forward driving during steering are achieved, the structure is simple, and the production cost is low.

Description

Technical Field

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

[0002] Inspection robots in the field of quality inspection and patrol technology are semi-autonomous, autonomous, or fully controlled robots that assist humans in completing safety inspections. Based on the actual needs of production and life, they are used to address safety hazards, patrol monitoring, and disaster warnings, thereby reducing the occurrence of safety accidents and minimizing loss of life and property. As a key supporting component of the entire inspection robot, the chassis is a vital component of the robot's structure. It supports the installation of various components such as wheels and steering mechanisms, motors, batteries, control systems, positioning, and audio systems, as well as bearing the power to ensure the robot's normal operation.

[0003] The current robot chassis generally drives the entire robot to move and turn through a combination of motion motors, control motors, belts, gears and other structures. When turning and driving forward during turning, the chassis needs to use two sets of drive motors to achieve driving and steering respectively, which has a complex structure and high manufacturing cost. Utility Model Content

[0004] The purpose of the utility model is to provide a chassis and a functional vehicle, wherein the chassis can realize steering and forward driving during steering by using a motor, has a simple structure and low manufacturing cost.

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

[0006] On the one hand, a chassis is provided, which is used to be connected to a vehicle body. The chassis includes a chassis frame, a steering shaft, a first drive shaft, a first transmission mechanism and a motor. A steering wheel is installed on the steering shaft, and the steering shaft is vertically and rotatably connected to the chassis frame. The first drive shaft is rotatably installed on the chassis frame, and the first drive shaft extends along the left and right directions of the vehicle body. The motor is connected to the first drive shaft, and the first transmission mechanism is connected to the first drive shaft and the steering shaft at the same time.

[0007] Preferably, the first transmission mechanism includes a power input shaft, a gear transmission assembly and a first synchronous belt, the gear transmission assembly is transmission-connected between the power input shaft and the first drive shaft, the chassis also includes a steering transmission assembly and a transverse shaft, the first 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.

[0008] 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 to the steering shaft, the second bevel gear and the steering gear are both coaxially fixed to the connecting shaft, and the first bevel gear and the second bevel gear are meshed;

[0009] The steering transmission assembly also includes an incomplete gear and an incomplete ring gear, which are coaxially fixed to the horizontal shaft. The steering gear is located between the incomplete gear and the incomplete ring gear. The incomplete gear and the incomplete ring gear can both engage with or disengage from the steering gear, and when one of the incomplete gear and the incomplete ring gear can engage with the steering gear, the other is disengaged from the steering gear.

[0010] Preferably, the incomplete gear includes a first disc and externally protruding teeth protruding from the outer circumference of the first disc, and the incomplete ring gear includes a second disc and internally protruding teeth protruding from the end surface of the second disc.

[0011] Preferably, the chassis further comprises a support plate fixedly arranged on the chassis frame, and the connecting shaft and the support plate are transitionally fitted.

[0012] Preferably, the chassis includes two steering shafts, each steering shaft is rotatably provided with a steering wheel, the chassis also includes a second synchronous belt, the two steering shafts are connected by the second synchronous belt, and the first transmission mechanism is in transmission connection with one of the steering shafts.

[0013] Preferably, the chassis also includes a second drive shaft and a second transmission mechanism. The second drive shaft is rotatably mounted on the chassis frame, and the second drive shaft extends along the left and right directions of the vehicle body. The second transmission mechanism is transmission-connected to the second drive shaft. The first drive shaft is located between the second drive shaft and the steering shaft, and the motor is located above the first drive shaft. The motor can be selectively transmission-connected to the first transmission mechanism or the second transmission mechanism.

[0014] Preferably, the chassis also includes a first ratchet and ratchet mechanism and a second ratchet and ratchet mechanism. When the motor reverses, 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 forward, 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.

[0015] Preferably, the chassis further comprises a first power shaft, a second power shaft and a third synchronous belt, the motor is fixedly connected to the second power shaft, the third synchronous belt connects the first power shaft and the second power shaft, the first power shaft is transmission-connected to the motor, the first ratchet and ratchet mechanism comprises a first ratchet and a first ratchet, the first ratchet is transmission-connected to the first transmission mechanism, the first ratchet is movably connected to the first power shaft, when the motor rotates forward, the first ratchet can be disengaged from the first ratchet, and when the motor rotates reversely, the first ratchet can be meshed with the first ratchet;

[0016] The second power shaft is connected to the motor in a transmission manner, and the second ratchet and ratchet mechanism includes a second ratchet and a second ratchet. The second ratchet is connected to the second transmission mechanism in a transmission manner, and the second ratchet is movably connected to the second power shaft. When the motor rotates forward, the second ratchet can engage with the second ratchet, and when the motor rotates reversely, the second ratchet can disengage from the second ratchet.

[0017] On the other hand, a functional vehicle is provided, which includes a vehicle body, a camera and a chassis according to any of the above technical solutions, wherein the vehicle body is supported on a chassis frame of the chassis, and the camera is fixedly mounted on the vehicle body.

[0018] The beneficial effects of the present invention are: providing a chassis, the motor of which can simultaneously provide power to the first drive shaft and the steering shaft, realizing steering and forward driving during steering, with a simple structure and low production cost.

[0019] The invention provides a functional vehicle which can complete multiple functions of straight-line driving, turning and forward driving during turning by using only one driving device, while reducing the number of motors used. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a first-perspective axonometric drawing of the chassis provided by the present utility model;

[0021] Figure 2 yes Figure 1 A partial enlarged view of part A;

[0022] Figure 3 This is a first partial schematic diagram of the chassis provided by the utility model;

[0023] Figure 4 This is a second perspective axonometric drawing of the chassis provided by the present invention;

[0024] Figure 5 This is a second partial schematic diagram of the chassis provided by the present invention;

[0025] Figure 6 It is an axonometric drawing of the functional vehicle provided by the utility model.

[0026] In the figure: 1. body; 2. chassis frame; 3. steering shaft; 4. first drive shaft; 5. first transmission mechanism; 51. power input shaft; 52. gear transmission assembly; 53. first synchronous belt; 6. motor; 7. steering wheel; 8. first drive wheel; 9. steering transmission assembly; 91. connecting shaft; 92. steering gear; 93. first bevel gear; 94. second bevel gear; 95. incomplete gear; 951. first disc; 952. outer convex tooth; 96. incomplete ring gear; 961. second disc; 962. inner convex tooth; 1 0. Horizontal axis; 11. Support plate; 12. Second synchronous belt; 13. Second drive shaft; 14. Second transmission mechanism; 15. Second drive wheel; 16. First ratchet and ratchet mechanism; 161. First ratchet; 162. First ratchet; 17. Second ratchet and ratchet mechanism; 171. Second ratchet; 172. Second ratchet; 18. First power shaft; 19. Second power shaft; 20. Third synchronous belt; 21. Camera; 22. First limit member; 23. First elastic member; 24. Second limit member; 25. Second elastic member. DETAILED DESCRIPTION

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0028] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0029] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0030] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0031] On the one hand, please refer to Figures 1 to 6 This embodiment provides a chassis, which is used to be connected to the vehicle body 1. The chassis includes a chassis frame 2, a steering shaft 3, a first drive shaft 4, a first transmission mechanism 5 and a motor 6. A steering wheel 7 is installed on the steering shaft 3. The steering shaft 3 is vertically and rotatably connected to the chassis frame 2. The first drive shaft 4 is rotatably installed on the chassis frame 2, and the first drive shaft 4 extends along the left and right directions of the vehicle body 1. The motor 6 is transmission-connected to the first drive shaft 4, and the first transmission mechanism 5 is transmission-connected to the first drive shaft 4 and the steering shaft 3 at the same time. Specifically, a first drive wheel 8 is installed on the first drive shaft 4. In this arrangement, the motor 6 is transmission-connected to the first drive shaft 4 and the steering shaft 3 at the same time through the first transmission mechanism 5, so that the motor 6 can provide power to the first drive shaft 4 and the steering shaft 3 at the same time, so that the chassis can achieve steering and forward drive during steering. The structure is simple and the production cost is low.

[0032] Alternatively, see Figure 1 and Figure 2 The first transmission mechanism 5 includes a power input shaft 51, a gear transmission assembly 52, and a first synchronous belt 53. The gear transmission assembly 52 is connected in transmission between the power input shaft 51 and the first drive shaft 4. The chassis also includes a steering transmission assembly 9 and a transverse shaft 10. The first synchronous belt 53 connects the power input shaft 51 and the transverse shaft 10. The steering transmission assembly 9 is connected in transmission between the transverse shaft 10 and the steering shaft 3. The first transmission mechanism 5 has an input shaft as a power input end, and two power output ends, the first drive shaft 4 and the transverse shaft 10. The transverse shaft 10 is connected in transmission to the steering shaft 3. With this arrangement, the power provided by the motor 6 can be transmitted to the first drive shaft 4 and the steering shaft 3 respectively, so that the chassis can achieve steering and forward drive during steering, simplifying the transmission structure and reducing the production cost of the equipment.

[0033] Alternatively, see Figure 2The steering transmission assembly 9 includes a connecting shaft 91, a steering gear 92, a first bevel gear 93 and a second bevel gear 94. The first bevel gear 93 is coaxially fixed on the steering shaft 3. The second bevel gear 94 and the steering gear 92 are both coaxially fixed to the connecting shaft 91, and the first bevel gear 93 and the second bevel gear 94 are meshed. The steering transmission assembly 9 also includes an incomplete gear 95 and an incomplete ring gear 96. The incomplete gear 95 and the incomplete ring gear 96 are both coaxially fixed to the horizontal shaft 10. The steering gear 92 is located between the incomplete gear 95 and the incomplete ring gear 96. The incomplete gear 95 and the incomplete ring gear 96 can both engage with or disengage from the steering gear 92, and when one of the incomplete gear 95 and the incomplete ring gear 96 can engage with the steering gear 92, the other is disengaged from the steering gear 92. With this arrangement, when one of the incomplete gear 95 and the incomplete ring gear 96 is able to engage with the steering gear 92, the steering gear 92 rotates to drive the second bevel gear 94 to rotate, and the first bevel gear 93 engages with the second bevel gear 94 and rotates, thereby driving the steering shaft 3 to rotate.

[0034] For details, please refer to Figure 2 and Figure 3 In this embodiment, the incomplete gear 95 includes a first disk 951 and externally protruding teeth 952 protruding from the outer circumference of the first disk 951. The incomplete ring gear 96 includes a second disk 961 and internally protruding teeth 962 protruding from the end surface of the second disk 961. The centers of the first disk 951 and the second disk 961 coincide and are fixedly connected. This arrangement facilitates the assembly of the incomplete gear 95, the incomplete ring gear 96, and the steering gear 92, ensuring synchronous rotation of the incomplete gear 95 and the incomplete ring gear 96.

[0035] It should be noted that when traveling in a straight line, the steering wheel 7 is in the same direction as the first drive wheel 8, and the position of the steering gear 92 can remain stable. As the transverse shaft 10 rotates, the incomplete gear 95 and the incomplete ring gear 96 rotate synchronously. When one of the incomplete gear 95 or the incomplete ring gear 96 engages with the steering gear 92, for example, when the incomplete gear 95 engages with the steering gear 92, the incomplete ring gear 96 disengages from the steering gear 92. At this time, the incomplete gear 95 can drive the steering gear 92 to rotate through a meshing angle. Subsequently, the steering gear 92 disengages from the incomplete gear 95, and the position of the steering gear 92 can remain stable. As the transverse shaft 10 continues to rotate through a set angle, the incomplete ring gear 96 engages with the steering gear 92, disengaging the incomplete gear 95 and driving the steering gear 92 to rotate in the opposite direction through a meshing angle, returning the steering gear 92 to its initial state. At this time, the steering wheel 7 is in the same direction as the first drive wheel 8.

[0036] It should be understood that the set angle can be set according to actual needs. For example, when the chassis is used for an inspection vehicle, the inspection vehicle automatically drives around the periphery of the factory. When it encounters a corner, it needs to turn an angle. The set angle can ensure that the functional vehicle can turn the corner.

[0037] Alternatively, see Figure 2 and Figure 6 The chassis also includes a support plate 11 fixed to the chassis frame 2, with the connecting shaft 91 and the support plate 11 in transitional fit. This configuration allows the support plate 11 to support and limit the connecting shaft 91. During a turn, when the incomplete gear ring 96 and the incomplete gear 95 are both disengaged from the steering gear 92, the position of the connecting shaft 91 can remain stable, thereby stabilizing the steering gear 92. When one of the incomplete gear 95 and the incomplete gear ring 96 is able to engage with the steering gear 92, the driving force provided by the motor 6 can overcome the friction caused by the transitional fit between the connecting shaft 91 and the support plate 11, causing the connecting shaft 91 to rotate relative to the support plate 11, thereby enabling the steering wheel 7 to complete the turn.

[0038] In other embodiments, a plurality of continuous externally protruding teeth 952 may be provided on the incomplete gear 95, and a plurality of continuous internally protruding teeth 962 may be provided on the incomplete ring gear 96. When any externally protruding tooth 952 on the incomplete gear 95 is engaged with the steering gear 92, each internally protruding tooth 962 on the incomplete ring gear 96 is separated from the steering gear 92; and when any internally protruding tooth 962 on the incomplete ring gear 96 is engaged with the steering gear 92, each externally protruding tooth 952 on the incomplete gear 95 is separated from the steering gear 92.

[0039] In other embodiments, a worm gear mechanism may be provided in place of the first bevel gear 93 and the second bevel gear 94. The worm gear is fixed to the steering shaft 3, and the worm is fixed to the connecting shaft 91. The worm gear and the worm are meshed. When one of the incomplete gear 95 and the incomplete ring gear 96 is able to mesh with the steering gear 92, the steering gear 92 rotates, causing the worm to rotate. The worm gear meshes with the worm and rotates, thereby driving the steering shaft 3 to rotate.

[0040] Alternatively, see Figure 1 and Figure 2 The chassis includes two steering shafts 3, each of which is rotatably provided with a steering wheel 7. The chassis also includes a second synchronous belt 12, connecting the two steering shafts 3 via the second synchronous belt 12, and the first transmission mechanism 5 is in driving connection with one of the steering shafts 3. With this arrangement, the second synchronous belt 12 allows the first transmission mechanism 5 to achieve synchronous steering of both steering shafts 3 by simply being in driving connection with one of the steering shafts 3, thereby enhancing the steering stability of the chassis, while also simplifying the chassis structure and ensuring reliable transmission.

[0041] Alternatively, see Figures 4 to 6 The chassis also includes a second drive shaft 13 and a second transmission mechanism 14. The second drive shaft 13 is rotatably mounted on the chassis frame 2 and extends in the left-right direction of the vehicle body 1. The second transmission mechanism 14 is in driving connection with the second drive shaft 13. The first drive shaft 4 is located between the second drive shaft 13 and the steering shaft 3, and the motor 6 is located above the first drive shaft 4. The motor 6 can be selectively connected to the first transmission mechanism 5 or the second transmission mechanism 14. Specifically, a second drive wheel 15 is mounted on the second drive shaft 13. In this arrangement, when the motor 6 is connected to the first transmission mechanism 5, the first transmission mechanism 5 connects the motor 6 and the first drive shaft 4 and the motor 6 and the steering shaft 3, respectively, to transmit power. When the first drive shaft 4 drives the first drive wheel 8 to rotate, the steering shaft 3 rotates, thereby driving the steering wheel 7 to turn, thereby enabling the chassis to drive the vehicle body 1 to turn while still having the power to move forward. When the motor 6 is connected to the second transmission mechanism 14, the second transmission mechanism 14 connects the motor 6 and the second drive shaft 13 to transmit power. The second drive shaft 13 drives the second drive wheel 15 to rotate, thereby enabling the chassis to drive the vehicle body 1 to move forward in a straight line. This chassis can achieve multiple functions of straight-line driving, steering, and forward driving during steering using only one motor 6, reducing the use of drive components and reducing the manufacturing cost of the device. At the same time, the first drive shaft 4 is arranged between the second drive shaft 13 and the steering shaft 3, and the motor 6 is located above the first drive shaft 4, which facilitates the arrangement of the power transmission mechanism between the motor 6 and any of the first drive shaft 4, the second drive shaft 13, and the steering shaft 3, thereby reducing manufacturing cost and assembly difficulty.

[0042] Alternatively, see Figure 4 and Figure 5 The chassis also includes a first ratchet mechanism 16 and a second ratchet mechanism 17. When the motor 6 rotates in reverse, the first ratchet mechanism 16 can connect the power transmission between the motor 6 and the first transmission mechanism 5, and the second ratchet mechanism 17 can disconnect the power transmission between the motor 6 and the second transmission mechanism 14. When the motor 6 rotates in the forward direction, the first ratchet mechanism 16 can disconnect the power transmission between the motor 6 and the first transmission mechanism 5, and the second ratchet mechanism 17 can connect the power transmission between the motor 6 and the second transmission mechanism 14. This arrangement can change the engagement or disengagement state of the first ratchet mechanism 16 and the second ratchet mechanism 17 by changing the direction of the motor 6, so that the motor 6 can be selectively connected to the first transmission mechanism 5 or the second transmission mechanism 14, thereby allowing the chassis to move straight or turn. The first ratchet mechanism 16 and the second ratchet mechanism 17 have a simple structure, are safe and reliable, and the switching between power transmissions is smoother.

[0043] In other embodiments, a first clutch mechanism and a second clutch mechanism may also be provided. When turning is required, the first clutch mechanism can connect the power transmission between the motor 6 and the first transmission mechanism 5, and the second clutch mechanism can disconnect the power transmission between the motor 6 and the second transmission mechanism 14; when straight driving is required, the second clutch mechanism can connect the power transmission between the motor 6 and the second transmission mechanism 14, and the first clutch mechanism can disconnect the power between the motor 6 and the first transmission mechanism 5.

[0044] Alternatively, see Figure 1 、 Figure 4 and Figure 5 The chassis also includes a first power shaft 18, a second power shaft 19 and a third synchronous belt 20. The motor 6 is fixedly connected to the second power shaft 19. The third synchronous belt 20 connects the first power shaft 18 and the second power shaft 19. The first power shaft 18 is transmission-connected to the motor 6. The first ratchet and ratchet mechanism 16 includes a first ratchet 161 and a first ratchet 162. The first ratchet 161 is transmission-connected to the first transmission mechanism 5. The first ratchet 162 is movably connected to the first power shaft 18. When the motor 6 rotates forward, the first ratchet 161 can be engaged with the first ratchet 1 62 is disengaged, and when the motor 6 reverses, the first ratchet 161 can engage with the first ratchet 162; the second power shaft 19 is transmission-connected to the motor 6, and the second ratchet and ratchet mechanism 17 includes a second ratchet 171 and a second ratchet 172. The second ratchet 171 is transmission-connected to the second transmission mechanism 14, and the second ratchet 172 is movably connected to the second power shaft 19. When the motor 6 rotates forward, the second ratchet 171 can engage with the second ratchet 172. When the motor 6 reverses, the second ratchet 171 can disengage from the second ratchet 172. With this arrangement, by adjusting the forward and reverse rotation of the motor 6, the meshing state of the first ratchet and ratchet mechanism 16 and the second ratchet and ratchet mechanism 17 can be changed, thereby enabling the power transmission connection between the motor 6 and one of the first transmission mechanism 5 and the second transmission mechanism 14, while the power transmission between the motor 6 and the other is disconnected.

[0045] In some embodiments, please refer to Figure 5, the two sides of the first ratchet tooth 162 are respectively in contact with the first limiting member 22 and the first elastic member 23. When the motor 6 rotates forward, the first limiting member 22 is located downstream of the first ratchet tooth 162, and the first elastic member 23 is located upstream of the first ratchet tooth 162. The motor 6 drives the first power shaft 18 to rotate forward, and the first power shaft 18 can drive the first ratchet tooth 162 to rotate. When the first ratchet tooth 162 and the first ratchet wheel 161 are engaged, as the first power shaft 18 rotates, the first ratchet tooth 162 can rotate to one side of the first elastic member 23, and the first elastic member 23 is elastically deformed, and the first ratchet tooth 162 can be disengaged from the tooth groove of the first ratchet wheel 161. The first ratchet tooth 162 cannot engage with the first ratchet wheel 161, and the first ratchet tooth 162 cannot drive the first ratchet wheel 161 to rotate, and the power transmission between the motor 6 and the first transmission mechanism 5 is disconnected; When the motor 6 reverses, the motor 6 drives the first power shaft 18 to reverse, and the first power shaft 18 can drive the first limit member 22 and the first ratchet 162 to rotate synchronously. Along the rotation direction of the first ratchet 162, the first limit member 22 is located upstream of the first ratchet 162, and the first elastic member 23 is located downstream of the first ratchet 162. The first ratchet 162 is engaged in the tooth groove of the first ratchet 161. The first limit member 22 prevents the first ratchet 162 from disengaging from the tooth groove of the first ratchet 161, so that the first ratchet 162 and the first ratchet 161 always remain engaged, realizing the synchronous rotation of the first ratchet 161 and the first ratchet 162, thereby connecting the power transmission of the motor 6 and the first transmission mechanism 5. The motor 6 simultaneously drives the first drive shaft 4 and the steering shaft 3 to rotate, and the chassis enables steering while also having a driving force for forward movement.

[0046] A second limiting member 24 and a second elastic member 25 are respectively provided on both sides of the second ratchet tooth 172. When the motor 6 rotates forward, the motor 6 drives the second power shaft 19 to rotate forward, and the second power shaft 19 can drive the second limiting member 24 and the second ratchet tooth 172 to rotate synchronously. Along the rotation direction of the second ratchet tooth 172, the second limiting member 24 is located upstream of the second ratchet tooth 172, and the second elastic member 25 is located downstream of the second ratchet tooth 172. The second ratchet tooth 172 is engaged in the tooth groove of the second ratchet wheel 171. The second limiting member 24 prevents the second ratchet tooth 172 from disengaging from the tooth groove of the second ratchet wheel 171, so that the second ratchet tooth 172 and the second ratchet wheel 171 are always engaged, thereby realizing the synchronization of the second ratchet wheel 171 and the second ratchet tooth 172. When the second ratchet 172 is engaged with the second ratchet wheel 171, as the second power shaft 19 rotates, the second ratchet 172 can rotate toward the side of the second elastic member 25, and the second elastic member 25 is elastically deformed, and the second ratchet 172 can be disengaged from the tooth groove of the second ratchet wheel 171, so that the second ratchet 172 cannot engage with the second ratchet wheel 171, and the second ratchet 172 cannot drive the second ratchet wheel 171 to rotate, and the power transmission of the motor 6 and the second transmission mechanism 14 is disconnected.

[0047] On the other hand, please refer to Figure 6 A functional vehicle is provided, comprising a vehicle body 1, a camera 21, and the aforementioned chassis. The vehicle body 1 is supported on a chassis frame 2 of the chassis, and the camera 21 is fixedly mounted on the vehicle body 1. Optionally, the functional vehicle comprises multiple cameras 21. Such an arrangement reduces blind spots of the cameras 21, making the functional vehicle safer and more reliable.

[0048] In some embodiments, the utility vehicle is a factory inspection vehicle. The utility vehicle also includes a control component that sets the vehicle's trajectory based on the actual inspection path of the factory. Based on the vehicle's speed and wheel diameter, the control component calculates the time points at which the vehicle needs to turn. Based on the angle of each turn, the control component controls motor 6 to switch forward or reverse rotation at the corresponding time points, thereby adapting to the inspection of factories of different sizes. The factory inspection vehicle requires no manual operation, saving time and effort and improving work efficiency. The utility vehicle can also be used for automated operations and production in scenarios such as roads and farms.

[0049] The working principle of this function car is as follows:

[0050] When the functional vehicle needs to travel in a straight line, the motor 6 rotates forward, thereby driving the first power shaft 18 to rotate forward, and the first power shaft 18 drives the first ratchet 162 to rotate forward, and the first ratchet 162 disengages from the first ratchet 161, so that the power transmission between the motor 6 and the first transmission mechanism 5 is disconnected, the first drive shaft 4 will not rotate actively, and the steering shaft 3 will not rotate; at the same time, the first power shaft 18 drives the second power shaft 19 to rotate forward through the third synchronous belt 20, thereby driving the second ratchet 172 to rotate forward, and the second ratchet 171 engages with the second ratchet 172 and rotates forward, driving the second drive shaft 13 to rotate through the second transmission mechanism 14, and then driving the second drive wheel 15 to rotate, cooperating with the steering wheel 7 to drive the functional vehicle to travel in a straight line.

[0051] When the functional vehicle needs to turn, the motor 6 reverses to drive the first power shaft 18 to rotate in the opposite direction, and the first power shaft 18 drives the first ratchet 162 to rotate in the opposite direction. The first ratchet 161 engages with the first ratchet 162 and rotates in the opposite direction. The first ratchet 162 drives the power input shaft 51 to rotate in the opposite direction, and transmits power to the first drive shaft 4 and the transverse shaft 10 respectively through the gear transmission assembly 52 and the first synchronous belt 53. The first drive shaft 4 rotates forward and drives the first drive wheel 8 to rotate, so that the functional vehicle still has the driving force to move forward while turning. Similarly, the first power shaft 18 drives the second power shaft 19 to rotate in the opposite direction through the third synchronous belt 20, and the motor 6 and The power transmission between the second transmission mechanism 14 is disconnected, and the second drive shaft 13 will not rotate actively; at the same time, the horizontal shaft 10 rotates forward and drives the incomplete ring gear 96 and the incomplete gear 95 to rotate forward. When the steering gear 92 and the incomplete ring gear 96 are engaged, the steering gear 92 drives the second bevel gear 94 to rotate forward through the connecting shaft 91, thereby driving the steering shaft 3 to rotate through the first bevel gear 93 engaged with the second bevel gear 94, and the steering wheel 7 turns. When the steering gear 92 and the incomplete ring gear 96 are fully engaged, the steering gear 92 is engaged with the incomplete gear 95 again and rotates in the opposite direction. Similarly, the steering wheel 7 is driven back to the center position by the rotation of the steering shaft 3, which is convenient for continuing to drive in a straight line after turning.

[0052] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A chassis, the chassis being used to be connected to a vehicle body (1), the chassis comprising a chassis frame (2), a steering shaft (3), a first drive shaft (4), a first transmission mechanism (5) and a motor (6), the steering shaft (3) being provided with a steering wheel (7), the steering shaft (3) being vertically and rotatably connected to the chassis frame (2), the first drive shaft (4) being rotatably mounted on the chassis frame (2), and the first drive shaft (4) extending in the left-right direction of the vehicle body (1), the motor (6) being in transmission connection with the first drive shaft (4), and characterized in that: The first transmission mechanism (5) is simultaneously in transmission connection with the first drive shaft (4) and the steering shaft (3).

2. The chassis according to claim 1, characterized in that The first transmission mechanism (5) includes a power input shaft (51), a gear transmission assembly (52) and a first synchronous belt (53), wherein the gear transmission assembly (52) is transmission-connected between the power input shaft (51) and the first drive shaft (4), and the chassis further includes a steering transmission assembly (9) and a transverse shaft (10), wherein the first synchronous belt (53) connects the power input shaft (51) and the transverse shaft (10), and wherein the steering transmission assembly (9) is transmission-connected between the transverse shaft (10) and the steering shaft (3).

3. The chassis according to claim 2, characterized in that The steering transmission assembly (9) comprises a connecting shaft (91), a steering gear (92), a first bevel gear (93) and a second bevel gear (94), wherein the first bevel gear (93) is coaxially fixed on the steering shaft (3), the second bevel gear (94) and the steering gear (92) are both coaxially fixed to the connecting shaft (91), and the first bevel gear (93) and the second bevel gear (94) are meshed; The steering transmission assembly (9) further comprises an incomplete gear (95) and an incomplete gear ring (96), wherein the incomplete gear (95) and the incomplete gear ring (96) are both coaxially fixed to the transverse shaft (10), and the steering gear (92) is located between the incomplete gear (95) and the incomplete gear ring (96), and the incomplete gear (95) and the incomplete gear ring (96) are both capable of engaging with or disengaging from the steering gear (92), and when one of the incomplete gear (95) and the incomplete gear ring (96) is capable of engaging with the steering gear (92), the other is disengaged from the steering gear (92).

4. The chassis according to claim 3, characterized in that The incomplete gear (95) includes a first disc (951) and an outer convex tooth (952) protruding from the outer peripheral surface of the first disc (951); the incomplete gear ring (96) includes a second disc (961) and an inner convex tooth (962) protruding from the end surface of the second disc (961).

5. The chassis according to claim 3, characterized in that The chassis further comprises a support plate (11) fixedly arranged on the chassis frame (2), and the connecting shaft (91) and the support plate (11) are transitionally matched.

6. The chassis according to any one of claims 1 to 5, characterized in that: The chassis comprises two steering shafts (3), each of which is rotatably provided with a steering wheel (7). The chassis also comprises a second synchronous belt (12), the two steering shafts (3) are connected via the second synchronous belt (12), and the first transmission mechanism (5) is in transmission connection with one of the steering shafts (3).

7. The chassis according to claim 6, characterized in that The chassis further comprises a second drive shaft (13) and a second transmission mechanism (14), wherein the second drive shaft (13) is rotatably mounted on the chassis frame (2), and the second drive shaft (13) extends along the left-right direction of the vehicle body (1), the second transmission mechanism (14) is transmission-connected to the second drive shaft (13), the first drive shaft (4) is located between the second drive shaft (13) and the steering shaft (3), and the motor (6) is located above the first drive shaft (4), and the motor (6) can be selectively transmission-connected to the first transmission mechanism (5) or the second transmission mechanism (14).

8. The chassis according to claim 7, characterized in that The chassis further comprises a first ratchet and ratchet mechanism (16) and a second ratchet and ratchet mechanism (17); when the motor (6) rotates in reverse, the first ratchet and ratchet mechanism (16) can connect the power transmission between the motor (6) and the first transmission mechanism (5), and the second ratchet and ratchet mechanism (17) can disconnect the power between the motor (6) and the second transmission mechanism (14); when the motor (6) rotates in forward direction, the first ratchet and ratchet mechanism (16) can disconnect the power transmission between the motor (6) and the first transmission mechanism (5), and the second ratchet and ratchet mechanism (17) can connect the power transmission between the motor (6) and the second transmission mechanism (14).

9. The chassis according to claim 8, characterized in that The chassis further comprises a first power shaft (18), a second power shaft (19) and a third synchronous belt (20), the motor (6) is fixedly connected to the first power shaft (18), the third synchronous belt (20) connects the first power shaft (18) and the second power shaft (19), the second power shaft (19) is transmission-connected to the motor (6), the first ratchet and ratchet mechanism (16) comprises a first ratchet (161) and a first ratchet (162), the first ratchet (161) is transmission-connected to the first transmission mechanism (5), the first ratchet (162) is movably connected to the first power shaft (18), when the motor (6) rotates forward, the first ratchet (161) can be disengaged from the first ratchet (162), and when the motor (6) rotates reversely, the first ratchet (161) can be meshed with the first ratchet (162); The second power shaft (19) is connected to the motor (6) in a transmission manner. The second ratchet and ratchet mechanism (17) includes a second ratchet (171) and a second ratchet (172). The second ratchet (171) is connected to the second transmission mechanism (14) in a transmission manner. The second ratchet (172) is movably connected to the second power shaft (19). When the motor (6) rotates forward, the second ratchet (171) can engage with the second ratchet (172). When the motor (6) rotates reversely, the second ratchet (171) can disengage from the second ratchet (172).

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

Images