Vehicle carrier with height adjusting function

Abstract

The utility model relates to the field of automobiles, and particularly discloses a vehicle carrier with a height adjusting function. The vehicle carrier comprises a carrying trolley, the carrying trolley comprises a trolley body, and a walking assembly and a clamping assembly are arranged on the trolley body; a lifting assembly is arranged between the walking assembly and the vehicle body and used for adjusting the set height of the vehicle body relative to the walking assembly. According to the vehicle carrier, height adjustment of the vehicle carrier is achieved through lifting operation, on the premise that the vehicle carrier enters the bottom of an automobile, the passing capacity is considered, and the vehicle carrier can better adapt to various use scenes.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of engine especially relates to a vehicle carrier with height adjustment function. BACKGROUND

[0002] With the development of science and technology, the application scene of automation is more and more extensive, and at the same time, with the increasing of the automobile industry, the problem of parking difficulty is also more and more prominent. Among them, the intelligent garage is one of the ways to alleviate the problem of parking difficulty, and the key technology of intelligent garage includes automatic parking. The existing common automatic parking technology is usually completed by the intelligent driving system of the vehicle itself, but the automatic driving technology cannot be popularized, and there is difference between different systems, and automatic parking cannot be standardized and universalized.

[0003] Automatic guided vehicle technology, abbreviated as AGV, is an industrial vehicle that loads goods by automatic or manual way, automatically travels according to the set route or drags the loading platform truck to the designated place, and then loads and unloads goods by automatic or manual way. The application of automatic guided vehicle technology to parking garage can effectively solve the problem of automatic parking of intelligent garage.

[0004] The application scene of automatic guided vehicle technology is wide, such as intelligent workshop, logistics sorting, intelligent wharf, etc., but how to cooperate with the car to adapt to the automatic parking application scene needs to redesign the existing automatic guided vehicle. For example, due to the limited space of the garage, the planned parking space is small, which seriously restricts the movement space of the automatic guided vehicle, so the first choice is to carry out transfer operation at the bottom of the sedan. But at the same time, the chassis of the sedan is generally low, so how the automatic guided vehicle can smoothly enter and exit the bottom of the sedan and complete the automobile transfer operation is a problem that needs to be considered.

[0005] For example, the Chinese utility model patent with the application publication number CN 118532075 A discloses a vehicle carrier, wherein the vehicle carrier includes a linkage assembly and two carrying trolleys, the carrying trolley includes a vehicle body, the vehicle body is provided with a walking assembly and a clamping assembly, and the clamping assembly includes a clamping arm and a clamping driving mechanism. The above-mentioned vehicle carrier can enter the bottom of the automobile chassis as a whole and realize the carrying operation of the automobile, which has the advantages of small space occupation and reliable structure.

[0006] Because the chassis of the sedan is low, the vehicle carrier needs to work under the automobile chassis, so the height of the vehicle carrier itself and the chassis must be lower, and the passability of the vehicle carrier is poor, which limits the use scene. SUMMARY

[0007] The utility model wants to solve the technical problem to provide a kind of vehicle carrier with height adjustment function, the height adjustment of vehicle carrier is realized by lifting operation, under the premise of satisfying into the bottom of car, the through capacity is considered, can better adapt to various use scenarios.

[0008] In order to solve the above technical problems, the utility model provides the technical scheme as follows: a vehicle carrier with height adjustment function, comprising a carrying trolley, the carrying trolley includes a vehicle body, the vehicle body is equipped with a walking assembly and a clamping assembly, the walking assembly is used to drive the carrying trolley to move;The clamping assembly includes a clamping arm and a clamping drive mechanism, the clamping arm is rotatably connected with the vehicle body, and the clamping drive mechanism is used to drive the clamping arm to rotate.

[0009] The vehicle body is equipped with a clamping assembly on both sides, and the clamping assemblies on both sides of the vehicle body are oppositely arranged;The walking assembly is equipped with a lifting assembly between the vehicle body, and the lifting assembly is used to adjust the setting height of the vehicle body relative to the walking assembly.

[0010] When carrying out vehicle carrying operation, the carrying trolley enters the bottom of the vehicle to be parked, the clamping assembly works to lift the corresponding wheels, and the vehicle to be parked is lifted off the ground. The walking assembly works, and the vehicle to be parked is walked with the carrying trolley to the storage area, the clamping assembly works again, the vehicle to be parked is lowered and parked to the preset position, and the parking operation is completed.

[0011] Before the carrying trolley enters the bottom of the vehicle to be parked, the lifting assembly works to lower the height of the vehicle body, so that the carrying trolley can smoothly enter the bottom of the vehicle to be parked. When there is an obstacle on the route during the transfer, the lifting assembly works to raise the height of the vehicle body, thereby improving the passing capacity. After transferring to the parking storage area, the lifting assembly works again to lower the height of the vehicle body, so that the vehicle falls into the storage area, and the carrying trolley can also exit from the bottom of the vehicle.

[0012] Preferably, the number of clamping arms in each clamping assembly is two, and the clamping arms have at least two position states. During the transition from the first position state to the second position state, the two clamping arms extend out of the vehicle body, gradually approach each other, and form a tire lifting interval between the two clamping arms.

[0013] When carrying out vehicle carrying operation, the clamping assembly is aligned with the wheels, the clamping mechanism works, the clamping arm switches from the first position state to the second position state, and the corresponding wheels are clamped and lifted from both sides of the vehicle. At this time, the whole vehicle to be parked is suspended, and the clamping operation of the vehicle to be parked is completed.

[0014] As preferred, the clamping driving mechanism comprises a clamping power unit, a clamping worm and a driven wheel, the driven wheel is rotatably connected with the vehicle body and fixedly connected with the clamping arm, the driven wheel is engaged with the clamping worm, and the clamping power unit is used to drive the clamping worm to rotate.

[0015] The worm and gear transmission mechanism has a reverse self-locking characteristic, when entering the clamping state, the gravity of the vehicle is applied on the clamping arm, and the self-locking characteristic of the worm and gear transmission mechanism can bear the load borne by the clamping arm, thereby ensuring the stability of the clamping state.

[0016] As preferred, one side of the clamping arm is the clamping side, when the clamping arm is in the second position state, the clamping sides of the two clamping arms in the same group are oppositely arranged, and the clamping side of the clamping arm is provided with a roller along the length direction.

[0017] During the process of clamping and lifting the wheel, there is relative motion between the wheel and the clamping arm, and further a large friction force is generated, and the roller can convert the conventional sliding friction into rolling friction, thereby reducing the friction force.

[0018] As preferred, each carrying trolley is provided with at least three walking assemblies; each walking assembly comprises a walking wheel, a walking driving mechanism and a walking steering mechanism, the walking steering mechanism comprises a steering seat and a steering driving unit, the steering seat is rotatably connected with the vehicle body, and the steering driving unit drives the steering seat to rotate through a gear; the walking wheel and the walking driving mechanism are arranged on the steering seat, and the walking driving mechanism is used to drive the walking wheel to rotate.

[0019] As preferred, the number of the carrying trolleys is at least two, and each carrying trolley is sequentially distributed at the head and tail, and each adjacent two carrying trolleys are connected through a linkage assembly.

[0020] The linkage assembly comprises at least one linkage rod, the number of each linkage rod is two, and the two linkage rods in the same group are hingedly connected at the midpoint; two rod ends are respectively included at the two ends of the linkage assembly, one rod end is hingedly connected with the corresponding carrying trolley, and the other rod end is slidingly connected with the corresponding carrying trolley through a linkage sliding block.

[0021] The linkage assembly further comprises a linkage driving unit, and the linkage driving unit is used to drive one of the two linkage sliding blocks in the same linkage assembly to slide.

[0022] Each carrying trolley is provided with two sets of clamping assemblies, corresponding to clamping two wheels, at least two carrying trolleys are connected in series to meet the clamping and lifting of the whole vehicle.

[0023] As preferred, the lifting assembly comprises a lifting screw rod, a lifting nut and a lifting driving unit, the lifting screw rod is screwed with the lifting nut, the lifting screw rod is movably connected with the vehicle body, the lifting nut is rotatably connected with the vehicle body, the lifting driving unit is used for driving the lifting nut to rotate, and the walking assembly is connected with the lifting screw rod.

[0024] Through the screw rod transmission structure, the lifting operation between the vehicle body and the walking assembly is realized.

[0025] As preferred, the outer side of the lifting nut is provided with a worm gear, the lifting driving unit comprises a lifting worm and a lifting power unit, the lifting worm is engaged with the worm gear on the lifting nut, and the lifting power unit is used for driving the lifting worm to rotate.

[0026] The worm gear transmission mechanism has the reverse self-locking characteristic, the lifting driving unit completes the lifting operation through the worm gear structure, and the reliability of height keeping can be guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structural schematic view of the vehicle carrying device with height adjusting function in the first embodiment of the utility model;

[0028] Figure 2 is Figure 1 is an enlarged view of A in the figure;

[0029] Figure 3 is a front view of the vehicle carrying device with height adjusting function in the first embodiment of the utility model;

[0030] Figure 4 is a sectional view of the walking assembly, the lifting assembly and the vehicle body cooperation in the vehicle carrying device with height adjusting function in the first embodiment of the utility model;

[0031] Figure 5 is a structural schematic view of the vehicle carrying device with height adjusting function in the second embodiment of the utility model;

[0032] Figure 6 is a structural schematic view of the linkage assembly in the vehicle carrying device with height adjusting function in the second embodiment of the utility model. DETAILED DESCRIPTION

[0033] In order to make the utility model's purpose, technical scheme and advantages more clearly, the following will be further detailed with the drawings and examples. Embodiment one

[0034] As Figure 1 shown, the vehicle carrier with height adjustment function, including the trolley, the trolley includes the car body 1, the car body 1 is equipped with walking assembly 2 and clamping assembly 3, the walking assembly 2 is used to drive trolley movement.

[0035] As Figure 1 and Figure 2 shown, the clamping assembly 3 includes clamping arm 34 and clamping drive mechanism, the clamping arm 34 is rotatably connected with the car body 1, and the clamping drive mechanism is used to drive the clamping arm 34 rotation.The car body 1 both sides are equipped with clamping assembly 3, and the clamping assembly 3 on the both sides of the car body 1 is left-right opposite.

[0036] As Figure 2 shown, specifically, the number of clamping arm 34 in each clamping assembly 3 is two, and the clamping arm 34 has at least two position states, in the process of the clamping arm 34 from the first position state to the second position state, the two clamping arms 34 extend out of the car body 1, gradually approach each other, and form a tire lifting interval between the two clamping arms 34.

[0037] When carrying out vehicle carrying operation, the clamping assembly 3 is aligned with the wheel, the clamping mechanism works, the clamping arm 34 is switched from the first position state to the second position state, and the corresponding wheel is clamped and lifted from the both sides of the vehicle, at this time, the whole of the waiting parking car is suspended, and the clamping operation of the waiting parking car is completed.

[0038] As Figure 2 shown, specifically, the clamping drive mechanism includes clamping power unit 31, clamping worm 32 and driven wheel 33, the driven wheel 33 is rotatably connected with the car body 1 and is fixedly connected with the clamping arm 34 at the same time, the driven wheel 33 is engaged with the clamping worm 32, and the clamping power unit 31 is used to drive the clamping worm 32 rotation.Two clamping worms 32 corresponding to the clamping arm 34 are coaxial and integrally arranged, and the rotation directions of the worm gears on the two clamping worms 32 are opposite.

[0039] The worm and gear transmission mechanism has reverse self-locking characteristics, when entering the clamping state, the gravity of the vehicle is applied on the clamping arm 34, and the self-locking characteristics of the worm and gear can bear the load borne by the clamping arm 34, to ensure that the clamping state is stable.

[0040] As Figure 2As shown, further, one side of the clamping arm 34 is a clamping side, and when the clamping arm 34 is in the second position state, the clamping sides of the two clamping arms 34 in the same group are oppositely arranged; and the clamping side of the clamping arm 34 is provided with a roller 35 along the length direction.

[0041] During the process of clamping and lifting the wheel, there is relative movement between the wheel and the clamping arm 34, and further, a large friction force is generated, and the setting of the roller 35 can change the friction form from the conventional sliding friction to rolling friction, thereby reducing the friction force.

[0042] Specifically, as shown in Figure 1 each of the carrying trolleys is correspondingly provided with at least three walking assemblies 2. As shown in Figure 3 and Figure 4 each of the walking assemblies 2 comprises a walking wheel 22, a walking driving mechanism 21 and a walking steering mechanism, the walking steering mechanism comprises a steering seat and a steering driving unit, the steering seat is rotatably connected with the vehicle body 1, and the steering driving unit drives the steering seat to rotate through a gear. The walking wheel 22 and the walking driving mechanism 21 are arranged on the steering seat, and the walking driving mechanism 21 is used to drive the walking wheel 22 to rotate.

[0043] As shown in Figure 4 the walking assembly 2 and the vehicle body 1 are provided with a lifting assembly, and the lifting assembly is used to adjust the setting height of the vehicle body 1 relative to the walking assembly 2.

[0044] Specifically, as shown in Figure 4 the lifting assembly comprises a lifting lead screw 62, a lifting nut 63 and a lifting driving unit, and the lifting lead screw 62 is screwed with the lifting nut 63. The lifting lead screw 62 is movably connected with the vehicle body 1 in the up-down direction, the lifting nut 63 is rotatably connected with the vehicle body 1, and the lifting driving unit is used to drive the lifting nut 63 to rotate. The walking assembly 2 is connected with the lifting lead screw 62. Through the lead screw transmission structure, the lifting operation between the vehicle body 1 and the walking assembly 2 is realized.

[0045] Specifically, as shown in Figure 4 the outer side surface of the lifting nut 63 is provided with a worm tooth. The lifting driving unit comprises a lifting worm 61 and a lifting power unit 64, the lifting worm 61 is engaged with the worm tooth on the lifting nut 63, and the lifting power unit is used to drive the lifting worm 61 to rotate. The worm and gear transmission mechanism has the reverse self-locking characteristic, and the lifting driving unit completes the lifting operation through the worm and gear structure, which can ensure the reliability of the height retention.

[0046] As a specific embodiment, as shown in Figure 4As shown, the lifting assembly and the walking assembly 2 are combined into a driving module, the driving module further comprises a mounting housing 65, the lifting nut 63 is rotationally arranged in the mounting housing 65, the lifting worm 61 partially extends out of the mounting housing 65, the lifting power element is arranged outside the mounting housing 65, and the lifting screw 62 is axially slidably arranged on the mounting housing 65. The driving module is integrally arranged on the vehicle body 1 in a module form.

[0047] Specifically, as shown in the figure, the outer side surface of the lifting screw 62 and the mounting housing 65 are provided with a circumferential limiting unit 36, one of the limiting groove and the limiting convex rib is arranged on the lifting screw 62, and the other is arranged on the mounting housing 65. Through the circumferential limiting unit 36, the rotation of the lifting screw 62 can be limited, so as to convert the rotation of the lifting nut 63 into the axial movement of the lifting screw 62, and further realize the height adjustment of the walking assembly 2 relative to the vehicle body 1. Figure 4

[0048] Further comprising a control assembly, the control assembly comprises a processor and a road condition acquisition unit, the road condition acquisition unit is arranged on the vehicle body 1 and is used to acquire road condition information and feed back to the processor. The processor is used to form a height adjustment signal according to the road condition information and send it to the lifting assembly, and the walking assembly 2 adjusts the height of the vehicle body 1 relative to the walking assembly 2 according to the height adjustment signal.

[0049] When the vehicle carrying operation is performed, the carrying trolley enters the bottom of the to-be-stopped vehicle, the clamping assembly 3 works to lift the corresponding wheels, and the to-be-stopped vehicle is lifted off the ground. The walking assembly 2 works, and the to-be-stopped vehicle is walked with the carrying trolley to the storage area, the clamping assembly 3 works again, and the to-be-stopped vehicle is lowered and parked to the preset position, and the parking operation is completed.

[0050] Before the carrying trolley enters the bottom of the to-be-stopped vehicle, the lifting assembly works to lower the height of the vehicle body 1, so as to ensure that the carrying trolley can smoothly enter the bottom of the to-be-stopped vehicle. During the transposition process, the road condition acquisition unit acquires road condition information in real time and feeds back to the processor, when there is an obstacle on the travel route, the lifting assembly works to raise the height of the vehicle body 1 to improve the passing ability. After transposition to the parking storage area, the lifting assembly works to lower the height of the vehicle body 1 again, so as to make the vehicle fall into the storage area, and also facilitate the carrying trolley to exit from the bottom of the vehicle.

[0051] The carrying trolley can work alone, that is, only the parking brake wheels of the to-be-stopped vehicle are clamped, and the transshipment parking operation is performed, or multiple carrying trolleys can work together to complete the transshipment parking operation. Embodiment two

[0052] Compared with embodiment one, the difference of the present embodiment is that, as shown in the figure, the lifting screw 62 is arranged on the lifting nut 63, and the lifting nut 63 is arranged on the lifting worm 61. Figure 5 and Figure 6 ​As shown, the number of the carrying trolleys is at least two, each of which is arranged in sequence at the head and tail and connected by the linkage assembly 4 between each adjacent two carrying trolleys.

[0053] As shown in Figure 5 and Figure 6 The linkage assembly 4 includes at least one set of linkage rods 41, and each set of linkage rods 41 has two linkage rods 41, which are hinged to each other at the midpoint. The two ends of the linkage assembly 4 respectively include two rod ends, one of which is hinged to the corresponding carrying trolley, and the other is slidingly connected to the corresponding carrying trolley through the linkage slider 43.

[0054] As shown in Figure 5 and Figure 6 The linkage assembly 4 further includes a linkage driving unit 42, which is used to drive one of the two linkage sliders 43 in the same linkage assembly 4 to slide.

[0055] Each carrying trolley is provided with two sets of clamping assemblies 3, which can clamp two wheels respectively. At least two carrying trolleys are connected in series to meet the clamping and lifting of the whole vehicle. The linkage assembly 4 can adjust the distance between the adjacent two carrying trolleys to adapt to the clamping and carrying of vehicles with different wheelbase. Example three

[0056] Compared with example one, the difference of the present embodiment is that the carrying trolley further includes a frame 5, and each walking assembly 2 in the same carrying trolley is connected to the frame 5, so as to realize the synchronization of height adjustment between the walking assemblies 2. Example four

[0057] The automatic parking system includes a parking garage and a vehicle carrier as described above, wherein the parking garage includes a parking area and a garage area; the control module further includes a vehicle positioning unit and a position recognition unit;

[0058] The vehicle positioning unit is used to obtain the position and attitude information of the vehicle to be parked in the parking area and send it to the processor;

[0059] The position recognition unit is arranged on the carrying trolley and is used to collect the relative position information between the vehicle carrier and the vehicle to be parked within a preset range and send it to the processor;

[0060] The processor is used to receive the position and attitude information sent by the vehicle positioning unit, generate an initial vehicle taking position, and form a motion instruction to send to the vehicle carrier; and is used to receive the relative position information sent by the position recognition unit, generate a position adjustment instruction, and send it to the vehicle carrier;

[0061] The processor is further configured to generate the clamping instruction, the rotating instruction and the parking instruction and send them to the vehicle carrier.

[0062] The vehicle carrier is configured to receive the instructions sent by the processor and perform the position adjustment, the clamping, the rotating and the parking operations. Embodiment five

[0063] The automatic parking method employs the automatic parking system as described above.

[0064] The method comprises at least the following steps:

[0065] S1. Positioning: the vehicle positioning unit is operated to obtain the position information of the vehicle to be parked, and the processor controls the vehicle carrier to move to an initial vehicle taking position according to the position information of the vehicle to be parked;

[0066] S2. Position adjustment: the position recognition unit is operated to obtain the relative position information between the vehicle carrier and the vehicle to be parked, and the processor controls the vehicle carrier to accurately adjust the relative position with the vehicle to be parked according to the relative position information between the vehicle carrier and the vehicle to be parked;

[0067] S3. Tire clamping: the vehicle carrier is operated, the clamping assembly 3 is moved to the second position state, and the corresponding tire is lifted up;

[0068] S4. Rotating: the vehicle carrier is operated to rotate the vehicle to be parked to the storage area;

[0069] S5. Parking: the vehicle carrier is operated, the clamping assembly 3 is moved to the first position state, the tire is put down, and the vehicle is parked to the corresponding position in the storage area.

[0070] In summary, the above description is only the preferred embodiment of the present application and is not used to limit the present application. Any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A vehicle transporter with height adjustment function, comprising a transport trolley, the transport trolley comprising a vehicle body, the vehicle body being provided with a traveling component and a clamping component, the traveling component being used to drive the transport trolley to move; the clamping component comprising a clamping arm and a clamping drive mechanism, the clamping arm being rotatably connected to the vehicle body, the clamping drive mechanism being used to drive the clamping arm to rotate. Its features are: The vehicle body is provided with clamping components on both sides, and the clamping components on both sides of the vehicle body are positioned opposite each other; a lifting component is provided between the walking component and the vehicle body, and the lifting component is used to adjust the setting height of the vehicle body relative to the walking component.

2. The vehicle transporter according to claim 1, characterized in that: Each clamping assembly contains two clamping arms, each clamping arm having at least two position states. During the transition from the first position state to the second position state, the two clamping arms extend out of the vehicle body, gradually approach each other, and form a tire lifting zone between the two clamping arms.

3. The vehicle transporter according to claim 2, characterized in that: The clamping drive mechanism includes a clamping power unit, a clamping worm, and a driven wheel. The driven wheel is rotatably connected to the vehicle body and fixedly connected to the clamping arm. The driven wheel meshes with the clamping worm. The clamping power unit is used to drive the clamping worm to rotate. The clamping worms corresponding to the two clamping arms are coaxial and integrally arranged, and the worm teeth on the two clamping worms have opposite directions of rotation.

4. The vehicle transporter according to claim 2, characterized in that: One side of the clamping arm is the clamping side. When the clamping arm is in the second position, the clamping sides of the two clamping arms in the same group are arranged opposite each other. The clamping side of the clamping arm is provided with a roller along the length direction.

5. The vehicle transporter according to claim 1, characterized in that: Each of the aforementioned transport trolleys is provided with at least three traveling components; each of the aforementioned traveling components includes a traveling wheel, a traveling drive mechanism, and a traveling steering mechanism. The traveling steering mechanism includes a steering seat and a steering drive unit. The steering seat is rotatably connected to the vehicle body, and the steering drive unit drives the steering seat to rotate via gears. The traveling wheel and the traveling drive mechanism are mounted on the steering seat, and the traveling drive mechanism is used to drive the traveling wheel to rotate.

6. The vehicle transporter according to claim 1, characterized in that: The number of transport trolleys is at least two, and each transport trolley is arranged end to end, and connected to each adjacent pair of transport trolleys by a linkage component; The linkage component includes at least one set of linkage rods, with two linkage rods in each set. The two linkage rods in the same set are hinged to each other at the midpoint. The two ends of the linkage component each include two rod ends, one rod end of which is hinged to the corresponding transport trolley, and the other rod end is slidably connected to the corresponding transport trolley through a linkage slider. The linkage component also includes a linkage drive unit, which is used to drive one of the two linkage sliders within the same linkage component to slide.

7. The vehicle transporter according to any one of claims 1-6, characterized in that: The lifting assembly includes a lifting screw, a lifting nut, and a lifting drive unit. The lifting screw and the lifting nut are screwed together. The lifting screw is vertically connected to the vehicle body, and the lifting nut is rotatably connected to the vehicle body. The lifting drive unit is used to drive the lifting nut to rotate. The walking assembly is connected to the lifting screw.

8. The vehicle transporter according to claim 7, characterized in that: The outer surface of the lifting nut is provided with worm gears; the lifting drive unit includes a lifting worm and a lifting power unit, the lifting worm meshes with the worm gears on the lifting nut, and the lifting power unit is used to drive the lifting worm to rotate.

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