A vehicle carrier

Abstract

The application provides a vehicle carrying device. The vehicle carrying device comprises at least one pair of coaxial and spaced guide wheels, a driving assembly, the driving assembly comprising a rotary driving machine and a differential connected to the driving end of the driving machine, and at least one pair of coaxial and spaced driving wheels, two driving wheels in a pair of the driving wheels being respectively connected to two power output ends of the differential, a tray for carrying a vehicle, the tray having a traction end and a rear driving end oppositely arranged along the running direction of the tray, the traction end being supported above the at least one pair of the guide wheels, and the rear driving end being supported above the at least one pair of the driving wheels and being driven by the driving wheels to move in the running direction. The vehicle carrying device of the application uses only one power source and cooperates with the differential to realize straight line and curve running on two tracks, reduces the manufacturing cost of the vehicle carrying device, and simplifies the internal transmission chain structure of the device.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of load-carrying equipment, and more particularly relates to a vehicle carrying device. BACKGROUND

[0002] The vehicle carrying device is a track running device of a load-carrying vehicle, which carries weight through a tray or a vehicle carrying plate, and the tray or the vehicle carrying plate can run on a straight track and a curved track.

[0003] In the prior art, the vehicle carrying device is provided with at least two driving mechanisms, which are respectively used to drive the tray or the vehicle carrying plate to run on the straight track and the curved track. When the tray or the vehicle carrying plate is converted from one of the straight track and the curved track to the other, the driving mechanisms need to be switched at the same time.

[0004] The above prior art has the following technical defects:

[0005] Firstly, the existing vehicle carrying device is provided with at least two driving mechanisms, which causes the problems of high cost and large size of the whole device;

[0006] Secondly, two driving mechanisms are used for different tracks, and the two driving mechanisms need to be driven and linked to the runner through different ways to drive the tray or the vehicle carrying plate to move, thereby causing the complexity of the transmission chain of the vehicle carrying device. SUMMARY

[0007] The purpose of the embodiment of the present application is to provide a vehicle carrying device to solve the technical problems of high cost and structural complexity of the vehicle carrying device in the prior art.

[0008] To achieve the above purpose, the technical solution adopted by the present application is to provide a vehicle carrying device, which comprises:

[0009] At least one pair of coaxial and spaced guide wheels;

[0010] A driving assembly, the driving assembly comprising a rotary driving machine and a differential mechanism drivingly connected to the driving end of the driving machine, and at least one pair of coaxial and spaced driving wheels, two driving wheels in a pair of the driving wheels being drivingly connected to two power output ends of the differential mechanism, respectively;

[0011] A tray for carrying a vehicle, the tray having a traction end and a rear driving end oppositely arranged along the running direction thereof, the traction end being supported above at least one pair of the guide wheels, and the rear driving end being supported above at least one pair of the driving wheels and being driven by the driving wheels to move in the running direction.

[0012] In one embodiment, the vehicle carrying device further comprises a mounting frame hingedly connected to the rear driving end and having a hinging axis perpendicular to the running direction of the tray, and the driving assembly is mounted on the mounting frame, and the tray is supported above the at least one pair of driving wheels by the mounting frame.

[0013] In one embodiment, the vehicle carrying device further comprises a resilient member, one end of which is connected to the rear driving end, and the other end of which is connected to the mounting frame, and the resilient member and the hinging axis are arranged in a spaced manner along the running direction of the tray.

[0014] In one embodiment, the vehicle carrying device further comprises a double track having two parallel tracks, and a curve tracing assembly; the curve tracing assembly comprises a base plate, a resilient member and a guide wheel system; wherein,

[0015] the base plate is connected to either of the tray and the mounting frame; the guide wheel system comprises at least a guide wheel movably arranged in either of the parallel tracks of the double track; the upper end of the resilient member is connected to the base plate, and the lower end of the resilient member is directly or indirectly connected to the guide wheel.

[0016] In one embodiment, the curve tracing assembly comprises a plurality of the resilient members; the guide wheel system further comprises a connecting plate and a plurality of guide members, the guide member comprising a guide wheel shaft and the guide wheel rotatably sleeved on the lower end of the guide wheel shaft; wherein,

[0017] the upper end of the connecting plate is connected to the lower end of the plurality of the resilient members, and the lower end of the connecting plate is connected to the upper end of the plurality of the guide wheel shafts of the plurality of the guide members.

[0018] In one embodiment, the plurality of the guide members constitute a first guide member group and a second guide member group; wherein,

[0019] the plurality of the guide members in the first guide member group are sequentially and spacedly arranged along the extension direction of the parallel tracks, the plurality of the guide members in the second guide member group are sequentially and spacedly arranged along the extension direction of the parallel tracks, and the first guide member group and the second guide member group are spacedly arranged along the width direction of the parallel tracks.

[0020] In one embodiment, the number of the guide members in the first guide member group is greater than the number of the guide members in the second guide member group.

[0021] In one embodiment, a limiting hole penetrating through the thickness of the base plate is formed on the base plate; the curve tracing assembly further comprises a limiting column sleeved in the resilient member, the upper end of the limiting column is movably inserted into the limiting hole, and the lower end of the limiting column is connected to the lower end of the resilient member.

[0022] In one embodiment, the vehicle-carrying device further includes a linear guide assembly, which includes at least a guide wheel rotatably connected to the tray, the guide wheel and the guide wheel being movably disposed in two parallel tracks.

[0023] In one embodiment, the drive assembly further includes a drive chain and two drive shafts; wherein,

[0024] The drive chain is connected between the drive end of the rotary drive and the power input end of the differential. One end of each of the two drive shafts is connected to the two power output ends, and the other end of each of the two drive shafts is connected to the two drive wheels.

[0025] The beneficial effects of the vehicle-carrying device provided in this application are as follows: Compared with the prior art, the vehicle-carrying device of this application achieves linear and curved motion on dual tracks through the cooperation of a single power source and a differential. When linear motion is required, the controller of the vehicle-carrying device controls the differential to keep the output speeds of its two power output ends consistent, thus allowing the vehicle-carrying device to run smoothly along the dual tracks in a straight line. When curved motion is required, the inner travel of the curved track is shorter and the outer travel is longer. The controller of the vehicle-carrying device controls the differential to keep the output speeds of its two power output ends different, creating a speed difference between the inner and outer sides of the track, i.e., the outer speed is greater than the inner speed, thereby achieving steering of the vehicle-carrying device. The vehicle-carrying device of this application uses only one power source and cooperates with a differential to achieve linear and curved operation on dual tracks, reducing the manufacturing cost of the vehicle-carrying device and simplifying the internal transmission chain structure of the device. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 A schematic diagram of the vehicle-mounted device provided in the embodiments of this application;

[0028] Figure 2 for Figure 1 A diagram showing the elevation angle;

[0029] Figure 3 A schematic diagram of a tray provided in an embodiment of this application;

[0030] Figure 4 yes Figure 3 A diagram showing the elevation angle;

[0031] Figure 5 is a schematic view of a driving assembly provided by an embodiment of the present application;

[0032] Figure 6 is a schematic view of a curve tracing assembly provided by an embodiment of the present application;

[0033] Figure 7 is a schematic view of an elevation angle of Figure 6 .

[0034] In the drawings, various elements are labeled the same reference numerals and will be described with the same or similar terminology.

[0035] 1 - tray; 2 - driving assembly; 3 - curve tracing assembly; 4 - straight line guiding assembly; 5 - guiding wheel; 6 - mounting frame; 7 - elastic member; 8 - parallel rail; 11 - tray body; 12 - slope plate; 13 - blocking rod; 14 - hinged arm; 15 - side beam; 16 - support rod; 21 - rotary driving machine; 22 - driving chain; 23 - differential; 24 - transmission shaft; 25 - driving wheel; 31 - base plate; 32 - elastic member; 33 - limiting column; 34 - guide wheel system; 41 - leading wheel; 42 - connecting arm; 101 - traction end; 102 - rear driving end; 341 - connecting plate; 342 - guide wheel shaft; 343 - guide wheel; 3401 - first guide member group; 3402 - second guide member group. DETAILED DESCRIPTION

[0036] In order to make the technical problems to be solved, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not intended to limit the present application.

[0037] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0038] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0039] In addition, the terms "first", "second", etc. are used only for descriptive purposes and are not to be construed as indicating or implying relative importance or an ordered ranking of the indicated technical features. Thus, features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0040] The vehicle carrying device provided by the embodiments of the present application will be described.

[0041] Please refer to Figures 1 to 5 The vehicle carrying device provided by the embodiments of the present application comprises: at least one pair of coaxial and spaced guide wheels 5; a driving assembly 2, which comprises a rotary driving machine 21 and a differential 23 drivingly connected to the driving end of the driving machine 21, and at least one pair of coaxial and spaced driving wheels 25, two driving wheels 25 in the pair of driving wheels 25 are respectively drivingly connected to two power output ends of the differential 23; a tray 1 for carrying a vehicle, which has a traction end 101 and a rear driving end 102 oppositely arranged along the running direction of the tray 1, the traction end 101 is supported above the at least one pair of guide wheels 5, and the rear driving end 102 is supported above the at least one pair of driving wheels 25 and can be driven by the driving wheels 25 to move along the running direction.

[0042] The vehicle carrying device in the above embodiments realizes linear motion and curve motion on the double tracks through the cooperation of a single power and a differential. When linear motion is needed, the controller of the vehicle carrying device controls the differential to keep the output rotation speeds of the two power output ends consistent, so that the vehicle carrying device runs stably along the double tracks in a straight line. When curve motion is needed, the inner side of the curve track has a short travel and the outer side has a long travel, the controller of the vehicle carrying device controls the differential to keep the output rotation speeds of the two power output ends different, so that a speed difference is generated between the inner side and the outer side of the track, i.e., the rotation speed of the outer side is greater than that of the inner side, thereby realizing the steering of the vehicle carrying device. The vehicle carrying device of the present application only uses one power source and cooperates with a differential to realize linear and curve running on the double tracks, which reduces the manufacturing cost of the vehicle carrying device and simplifies the internal transmission chain structure of the device.

[0043] In one embodiment, the driving assembly 2 further comprises a driving chain 22 and two transmission shafts 24; wherein the driving chain 22 is drivingly connected between the driving end of the rotary driving machine 21 and the power input end of the differential 23, one end of each of the two transmission shafts 24 is drivingly connected to the two power output ends, and the other end of each of the two transmission shafts 24 is drivingly connected to the two driving wheels 25. Wherein, the driving chain 22 can be replaced by a steel wire rope or a belt.

[0044] During use, the rotary drive machine 21 transmits power to the differential 23 through the drive chain 22, the differential 23 branches the power to the two drive wheels 25 through two power output ends and two transmission shafts 24, and the two drive wheels 25 drive the pallet 1 to run along the running direction.

[0045] In one embodiment, the guide wheel 5 is preferably a universal wheel. In this embodiment, the vehicle carrying device includes a pair of guide wheels 5 for supporting the traction end 101 of the pallet 1, i.e. the front end of the pallet 1 running, and adjusting the running direction of the pallet 1 according to the running track.

[0046] In one embodiment, the pallet 1 includes a pallet body 11, an inclined plate 12, a blocking rod 13, two hinged arms 14, two side beams 15, and two support rods 16. The pallet body 11 has the traction end 101 and the rear driving end 102, and the rear driving end 102 is provided with two spring support points arranged opposite along the width direction of the pallet body 11.

[0047] The inclined plate 12 is inclined and movably connected to the edge of the traction end 101 of the pallet body 11 by a plurality of elastic members arranged in sequence and spaced apart along the edge of the traction end 101 of the pallet body 11, so that the inclined plate 12 can move away from or close to the traction end 101, and provide a certain movement allowance for the displacement of the inclined plate 11 under the weight during use, preventing damage to the inclined plate 12 and the front edge of the pallet body 11.

[0048] The two side beams 15 are arranged opposite and spaced apart along the width direction of the pallet body 11, and the two sides of the width direction of the pallet body 11 are connected to the two side beams 15 one by one.

[0049] The two ends of the blocking rod 13 are connected to the two side beams 15 one by one, and the blocking rod 13 is located at the rear driving end 102 of the pallet body 11 and spaced apart from the rear driving end 102 by a certain distance, and the blocking rod 13 is used to block the position of the vehicle carried to prevent the vehicle carried from sliding off the rear driving end 102.

[0050] The two hinged arms 14 are connected to the rear driving end 102 of the pallet body 11 and arranged opposite and spaced apart along the width direction of the pallet 102, and the ends of the two hinged arms 14 are provided with hinged points, which are used to hinge the mounting bracket 6 described below.

[0051] The two ends of the two support rods 16 are connected to the two side beams 15 respectively, and the two support rods 16 are located below the pallet body 11 and used to support the pallet body 11 from below.

[0052] In one embodiment, the vehicle carrying device further comprises a mounting frame 6, the mounting frame 6 is hinged to the rear driving end 102 and the hinging axis is perpendicular to the running direction of the tray 101, the driving assembly 2 is mounted on the mounting frame 6, and the tray 1 is supported above the at least one pair of driving wheels 25 through the mounting frame 6. The vehicle carrying device further comprises a resilient member 7, one end of the resilient member 7 is connected to the rear driving end 102, and the other end of the resilient member 7 is connected to the mounting frame 6, and the resilient member 7 and the hinging axis are arranged in a spaced manner along the running direction of the tray 1.

[0053] The traction end 101 of the tray body 11 is connected with a universal wheel, which can be used to support the traction end 101 of the tray body 101, and the rear driving end 102 of the tray body 11 has a downward movement tendency under the action of gravity, the weight of the tray body 101 is transmitted to the mounting frame 6 on which the driving assembly 2 is mounted through the resilient member 7, so that the driving assembly 2 and the mounting frame 6 as a whole have a downward running tendency, and thus the two driving wheels 25 connected to the mounting frame 6 are in contact with the ground. In this way, the traction end 101 of the tray body 11 is supported by the universal wheel, the rear driving end 102 of the tray body 11 is supported by the mounting frame 6 and the driving wheels 25 and driven by the driving wheels 25, the driving wheels 25 are always in contact with the ground and can generate sufficient friction, which can avoid the driving wheels 25 from slipping during running, so as to push the tray 11 to run along the running track continuously and stably.

[0054] In other embodiments, the above-mentioned hinging mode and the resilient member 7 can be set alternatively.

[0055] Reference Figures 1-7 In one embodiment, the vehicle carrying device further comprises a double track 8 with two parallel tracks and a curve tracing assembly 3; the curve tracing assembly 3 comprises a base plate 31, a resilient member 32 and a guide wheel system 34; wherein the base plate 13 is connected to either one of the tray 1 and the mounting frame 6; the guide wheel system 34 at least comprises a guide wheel 343, which is movably arranged in any parallel track 8 of the double track; the upper end of the resilient member 32 is connected to the base plate 31, and the lower end of the resilient member 32 is directly or indirectly connected to the guide wheel 343.

[0056] During the turning of the driving assembly 2, the curve tracing assembly 3 needs to run along a curve, and when turning, the guide wheel system 34 will be inclined, but it is necessary to ensure that the driving assembly 2 remains horizontal, so the mounting frame 6 of the driving assembly 2 is connected with the base plate 3, and the base plate 3 and the guide wheel system 34 are connected in a floating manner.

[0057] In one embodiment, to ensure the stability and reliability of the curve tracing assembly 3, the curve tracing assembly 3 comprises a plurality of elastic members 32; the guide wheel system 34 further comprises a connecting plate 341 and a plurality of guide members, the guide members comprising a guide wheel shaft 342 and a guide wheel 343 rotatably sleeved on the lower end of the guide wheel shaft 342; wherein the upper end of the connecting plate 341 is connected to the lower end of the plurality of elastic members 32, and the lower end of the connecting plate 341 is connected to the upper end of a plurality of guide wheel shafts 342 in the plurality of guide members.

[0058] In one embodiment, the plurality of guide members constitute a first guide member group 3401 and a second guide member group 3402; wherein the plurality of guide members in the first guide member group 3401 are sequentially and spacedly arranged along the extension direction of the parallel track 8, the plurality of guide members in the second guide member group 3402 are sequentially and spacedly arranged along the extension direction of the parallel track 8, the first guide member group 3401 and the second guide member group 3402 are spacedly arranged along the width direction of the parallel track 8, and the number of guide members in the first guide member group 3401 is greater than the number of guide members in the second guide member group 3402.

[0059] In this embodiment, the guide wheel system comprises 3 guide members, wherein the first guide member group 3401 comprises 3 guide members, which are an outer front end guide member, an outer middle guide member, and an outer rear end guide member. The second guide member group 3402 comprises 1 guide member, which is an inner guide member.

[0060] According to the above arrangement, one is turned inward, and three are turned outward, forming a triangular fixation, and the three guide wheels on the outside are fixed at the front side of the inner guide wheel, the coaxial position of the inner guide wheel, and the rear side of the inner guide wheel. Moreover, the two guide wheels at the coaxial position are always close to the track, which can effectively prevent the board from shaking violently; the guide wheels on the front and rear sides of the inner guide wheel form a force arm to provide a turning torque for the tray.

[0061] In one embodiment, a limiting hole 310 penetrating the thickness of the substrate 31 is formed on the substrate 31; the curve tracing assembly 3 further comprises a limiting column 33 sleeved in the elastic member 32, the upper end of the limiting column 33 is movably inserted into the limiting hole, and the lower end of the limiting column 33 is connected to the lower end of the elastic member 32. Wherein the hole size of the limiting hole on the substrate 31 is slightly larger than the diameter size of the limiting column 33, when the guide wheel 343 runs along the curve, the connecting plate 341 is inclined, the inclination is compensated by the limiting column 33 and the elastic member 32, and the substrate 31 basically remains horizontal, which can effectively prevent the guide wheel 343 from being blocked, avoid the driving wheel 25 from slipping, and ensure smooth running.

[0062] In this embodiment, the elastic member 32 and the limiting column 33 are both 4, and the 4 elastic members 32 and the 4 limiting columns 33 are both arranged at 4 points, which are located at the 4 corners of the same square.

[0063] In one embodiment, the vehicle carrying device further comprises a linear guide assembly 4, which comprises at least a guide wheel 41 rotatably connected to the tray 4, and the guide wheel 41 and the guide wheel 343 are movably arranged in the two parallel rails 8, respectively.

[0064] In this embodiment, the linear guide assembly 4 comprises a plurality of guide wheels 41, which are sequentially and spacedly arranged along the length direction of the parallel rails 8. In this embodiment, the linear guide assembly 4 further comprises a connecting arm 42, which is extended from the tray body 4 in the width direction and has a certain length, and the guide wheel 41 is rotatably connected to the end of the connecting arm 42.

[0065] The vehicle carrying device provided in this embodiment realizes the linear motion and steering motion of the tray through the combination of a single power source, a differential and a curve tracing assembly, can effectively avoid the parking space, simultaneously changes the position and orientation of the vehicle in the plane, and is convenient for better storage and access of the vehicle.

[0066] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A vehicle-mounted device, characterized in that, include: At least one pair of coaxial and spaced-apart guide wheels; wherein the guide wheels are omnidirectional wheels; A drive assembly includes a rotary drive motor and a differential that is driveably connected to the drive end of the rotary drive motor, and at least one pair of coaxial and spaced drive wheels, wherein two of the drive wheels in the pair are driveably connected to the two power output ends of the differential. A pallet for carrying a vehicle, the pallet having a traction end and a rear drive end disposed opposite to each other in its direction of travel, the traction end being supported above at least one pair of guide wheels, and the rear drive end being supported above at least one pair of drive wheels and being driven by the drive wheels to move in the direction of travel. The vehicle carrier also includes a mounting bracket hinged to the rear drive end with the hinge axis perpendicular to the travel direction of the tray. The drive assembly is mounted on the mounting bracket, and the tray is supported above at least one pair of drive wheels by the mounting bracket. The vehicle-carrying device also includes an elastic element, one end of which is connected to the rear drive end, and the other end of which is connected to the mounting frame. The elastic element and the hinge axis are spaced apart along the travel direction of the tray. The vehicle-carrying device also includes a dual-track system with two parallel tracks, and a curve-tracking assembly; the curve-tracking assembly includes a base plate, an elastic element, and a guide wheel system. The base plate is connected to either the tray or the mounting bracket; the guide wheel system includes at least a guide wheel, which is movably disposed in either parallel track of the dual tracks; the upper end of the elastic member is connected to the base plate, and the lower end of the elastic member is directly or indirectly connected to the guide wheel; The curve tracking component includes several elastic elements; the guide wheel system further includes a connecting plate and several guide elements, each guide element including a guide wheel shaft and a guide wheel rotatably sleeved on the lower end of the guide wheel shaft; wherein, The upper end of the connecting plate is connected to the lower end of a plurality of elastic members, and the lower end of the connecting plate is connected to the upper end of a plurality of guide wheel shafts among a plurality of guide members. The substrate has a limiting hole that extends through its thickness; the curve tracking assembly also includes a limiting post sleeved in the elastic member, the upper end of the limiting post being movably inserted into the limiting hole, and the lower end of the limiting post being connected to the lower end of the elastic member; wherein, the size of the limiting hole is larger than the diameter of the limiting post, and when the guide wheel runs along the curve, the connecting plate tilts, and the tilt is compensated by the limiting post and the elastic member; Several of the aforementioned guide members constitute a first guide member group and a second guide member group; wherein, The first guide group has a plurality of guide members arranged at intervals along the extension direction of the parallel track, the second guide group has a plurality of guide members arranged at intervals along the extension direction of the parallel track, and the first guide group and the second guide group are arranged at intervals along the width direction of the parallel track. The number of guides in the first guide group is greater than the number of guides in the second guide group, forming a triangular fixation.

2. The vehicle-mounted device as described in claim 1, characterized in that: The vehicle-carrying device further includes a linear guide assembly, which includes at least a guide wheel rotatably connected to the tray, and the guide wheel and the guide wheel are respectively movably disposed in two parallel tracks.

3. The vehicle-mounted device as described in claim 1 or 2, characterized in that: The drive assembly also includes a drive chain and two drive shafts; wherein... The drive chain is connected between the drive end of the rotary drive and the power input end of the differential. One end of each of the two drive shafts is connected to the two power output ends, and the other end of each of the two drive shafts is connected to the two drive wheels.

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