Transporter distance adjustment brake structure and transporter

Abstract

The application belongs to the technical field of stereo garage, and discloses a carrier distance-adjusting brake structure and a carrier. The carrier distance-adjusting brake structure comprises a telescopic mechanism connecting two walking frames and a limiting mechanism capable of controlling the telescopic mechanism to move or be fixed. The length of the telescopic mechanism depends on the limiting mechanism instead of the movement of the two walking frames, so that the telescopic mechanism cannot move in the first direction, that is, the distance between the two walking frames is locked when the car is lifted and moved, the distance between the two walking frames is fixed, the stability of the lifted and moved car is ensured, and the car is prevented from being stretched in the first direction due to the telescoping of the telescopic mechanism when the car is transferred, so that the car is not affected.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of stereo garage, in particular to a carrier distance adjusting brake structure and a carrier. BACKGROUND

[0002] At present, stereo garage includes lifting type, lifting and horizontal moving type, plane moving type, roadway stacking type, vertical circulation type and the like, and most of the garages are also transported by automatic transport robots.

[0003] The current domestic common carrier is divided into two categories of comb tooth type and clamping type. The intelligent stereo garage using these carriers has much higher efficiency in accessing the car than the intelligent stereo garage using the car plate exchange technology.

[0004] The structure of a typical carrier: including two carrier trolleys, generally, the structures of the two carrier trolleys are the same; the carrier trolley includes a walking frame as the frame of the carrier trolley, and the two walking frames can move along the first direction.

[0005] The two trolleys can adjust the relative distance according to the size of the automobile to be transported. The prior art is to control the distance between the two walking frames by moving the two walking frames, and the distance between the two walking frames is also controlled by walking when clamping the automobile to start transporting. In fact, the moving speed of the two walking frames will have some deviation, and when the automobile is transferred, the distance between the two walking frames will change, which will affect the stability of the transferred automobile.

[0006] Therefore, it is urgent to design a carrier distance adjusting brake structure and a carrier to solve the above problems. SUMMARY

[0007] An object of the present application is to provide a carrier distance adjusting brake structure, which can lock and fix the telescopic mechanism, so as to fix the distance between the two carrier trolleys and ensure the stability of the moving automobile.

[0008] Another object of the present application is to provide a carrier, which can be fixed after adjusting the distance between the two carrier trolleys, so as to ensure the stability of the moving automobile.

[0009] To achieve this object, the present application adopts the following technical solutions:

[0010] The carrier distance adjusting brake structure includes two walking frames, and the carrier distance adjusting brake structure includes: a telescopic mechanism connecting the two walking frames, and a limiting mechanism capable of controlling the telescopic mechanism to move or be fixed.

[0011] Optionally, the telescopic mechanism is a scissor fork linkage structure.

[0012] Optionally, the limiting mechanism comprises a nut connected with the telescopic mechanism, and the telescopic mechanism can drive the nut to move in the first direction;

[0013] A ball screw is pivotally connected with any one of the two walking frame bodies, the nut is threadedly connected with the ball screw, and the nut can drive the ball screw to rotate;

[0014] A brake is installed at one end of the walking frame body and can limit the rotation of the ball screw.

[0015] Optionally, the brake is an electromagnetic brake.

[0016] Optionally, the limiting mechanism further comprises a guide assembly, and the guide assembly comprises:

[0017] A first connecting plate is installed on the nut;

[0018] A plurality of guide rods are installed on the first connecting plate and extend in the first direction, the walking frame body is provided with guide holes matched with the guide rods in shape, and the guide rods can slide in the corresponding guide holes;

[0019] A second connecting plate is arranged in the first direction and located outside the walking frame body, the end portions of the plurality of guide rods are installed on the second connecting plate, and the second connecting plate is connected with the telescopic mechanism.

[0020] Optionally, the telescopic mechanism is provided with two connecting ends at two ends thereof, each two connecting ends at the same end of the telescopic mechanism are pivotally connected with one walking frame body, the intersecting rods in the middle portion of the telescopic mechanism are pivotally connected, and the nut is pivotally connected with the pivot connection points of the two intersecting rods closest in the first direction through the second connecting plate.

[0021] Optionally, the telescopic mechanism comprises two groups of pivotally connected rod assemblies, each pivotally connected rod assembly comprises a plurality of connecting rods connected in sequence and pivotally connected, at least some of the connecting rods of the two groups of pivotally connected rod assemblies are intersected and pivotally connected at the middle portion, the telescopic mechanism further comprises two auxiliary rods, the same end of the two auxiliary rods is pivotally connected with the middle portion of the two connecting rods close to the nut and intersected with each other, and the other end of the two auxiliary rods and the connecting end of the nut are pivotally connected.

[0022] The carrier is used for carrying vehicles and comprises two carrier trolleys, and the two carrier trolleys are connected through the carrier distance adjusting brake structure.

[0023] Optionally, the carrier trolley further comprises:

[0024] A walking driving member is installed on the walking frame body.

[0025] A third transmission member is installed at the output end of the walking driving member, and has two third output shafts;

[0026] Four walking wheel assemblies are arranged at the four corners of the walking frame, and each walking wheel assembly includes a plurality of walking wheels, which are pivotally connected to the walking frame; each third output shaft is connected to two walking wheels, and the movement direction of the carrying trolley is defined as a first direction, and two walking wheel assemblies in which the two walking wheels are located are oppositely arranged along a second direction, and the second direction is perpendicular to the first direction.

[0027] Optionally, the carrying trolley further includes a carrier clamping mechanism, and the carrier clamping mechanism includes:

[0028] A clamping driving member is installed at the walking frame;

[0029] A transmission assembly includes a first transmission member and two second transmission members, the first transmission member is installed at the output end of the clamping driving member, the first transmission member has two first output shafts, the clamping driving member can simultaneously drive the two first output shafts to rotate, the two second transmission members are respectively installed at the two first output shafts, the second transmission member has two second output shafts, and each first output shaft can simultaneously drive the corresponding two second output shafts to rotate;

[0030] Two clamping arm assemblies oppositely arranged along the second direction, the clamping arm assembly includes two clamping arms spaced apart along the first direction, the clamping arms are pivotally connected to the walking frame, and the two clamping arms in the same group are respectively transmissionally connected to the two second output shafts of one second transmission member, the second output shafts can drive the corresponding clamping arms to rotate so that the two clamping arms in the same group are simultaneously close to or away from each other, and the first direction is perpendicular to the second direction.

[0031] Optionally, the second output shaft is coaxially installed with a worm, the clamping arm includes a worm wheel and a rotating arm coaxially installed, the worm wheel is engaged with the worm, the worm can drive the worm wheel to rotate so that the rotating arm rotates, and the worm wheel and / or the rotating arm are respectively pivotally connected to the walking frame.

[0032] Optionally, the worm wheel is C-shaped, and the two ends of the worm wheel are respectively abutted with the two sides of the rotating arm.

[0033] The present application has the following advantages:

[0034] The present application provides a carrier distance adjusting brake structure, through the setting of the limiting mechanism, the length of the telescopic mechanism depends on the limiting mechanism, rather than the movement of the two walking frame bodies, that is, the distance between the two walking frame bodies is locked when lifting and moving the automobile, the distance between the two walking frame bodies is fixed, the stability of lifting and moving the automobile is ensured, and the automobile is prevented from being stretched in the first direction due to the telescopic mechanism when the automobile is transferred.

[0035] The present application also provides a carrier, by adopting the above-mentioned carrier distance adjusting brake structure, the distance between the two carrying trolleys is adjusted by the telescopic mechanism, and the telescopic mechanism is limited by the carrier distance adjusting brake structure, so that the stability of the carrier when lifting and moving the automobile is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 is a structure schematic diagram of the carrier provided by the embodiment of the present application Figure 1 ;

[0037] Figure 2 is a structure schematic diagram of the carrier provided by the embodiment of the present application Figure 2 ;

[0038] Figure 3 is a structure schematic diagram of the clamping arm.

[0039] In the figure:

[0040] 1000, carrying trolley;

[0041] 10, clamping driving part; 11, driving part; 12, turning part;

[0042] 20, transmission assembly; 21, first transmission part; 211, first output shaft; 22, second transmission part; 221, second output shaft; 23, worm;

[0043] 30, clamping arm assembly; 31, clamping arm; 311, worm gear; 3111, limiting part; 3112, thickening part; 312, rotating arm; 3121, pivot joint end; 31211, avoidance recess; 3122, free end; 32, pivot shaft; 33, conical roller bearing;

[0044] 200, walking frame body; 210, electrical module placing cavity; 220, upper flat plate; 230, lower flat plate; 240, vertical plate; 250, cover plate; 300, walking driving part; 400, third transmission part; 410, third output shaft; 500, walking wheel assembly; 510, walking wheel; 511, transmission part; 512, walking part; 520, reversing gear; 600, electrical box;

[0045] 700, limiting mechanism; 710, nut; 720, ball screw; 730, brake; 740, guide assembly; 741, first connecting plate; 742, guide rod; 743, second connecting plate;

[0046] 800, telescopic mechanism; 810, pivoting rod assembly; 811, connecting rod; 812, end rod; 820, sub rod. DETAILED DESCRIPTION

[0047] The application will be further described below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are intended to be merely illustrative of the application and not in limitation thereof. It should also be noted that, for the purpose of clarity, only those structures related to the application are shown in the drawings.

[0048] In the description of the application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0049] In the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature in the second feature can include the direct contact of the first and second features, or it can include the contact of the first and second features through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature in the second feature include the vertical and oblique above of the first feature in the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The "lower", "lower" and "lower" of the first feature in the second feature include the vertical and oblique below of the first feature in the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0050] In the description of the present embodiment, the terms "upper", "lower", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, therefore cannot be understood as a limitation on the application. In addition, the terms "first" and "second" are only used to distinguish in the description, and have no special meaning.

[0051] The present embodiment provides a carrier, such as Figure 1 As shown, the carrier includes two guide assemblies 740 arranged along a first direction (X) and a second direction (Y) perpendicular to the first direction (X), respectively. Figure 1The two transport trolleys 1000 are arranged at intervals in the middle X direction, i.e. the movement direction of the transport trolley 1000, and can jointly lift the four wheels of the automobile. The distance between the two transport trolleys 1000 can be adjusted to adapt to automobiles with different distances between the front wheels and the rear wheels. It should be noted that, in order to better show the structure of the transport trolley 1000, only the structure of one transport trolley 1000 is shown in the figure, and the other is replaced by a box. The structures of the two transport trolleys 1000 are substantially the same.

[0052] The transport trolley 1000 comprises a walking frame 200 as a frame, which can move in the first direction as a support frame of the transport trolley 1000. The two walking frames 200 are connected by a telescopic mechanism 800. When the walking frames 200 move, the telescopic mechanism 800 is elongated or shortened to ensure the connection of the two walking frames 200 and change the distance between the two walking frames 200.

[0053] The existing telescopic mechanism does not have an effective brake mechanism, and the distance between the two walking frames 200 is controlled only by the movement of the two walking frames. However, there may be slight deviations in the movement speed of the two walking frames 200, and the distance between the two walking frames 200 may change when the automobile is transferred, which affects the stability of the automobile transfer.

[0054] To solve the above problems, the embodiment provides a transport trolley distance adjustment brake structure, which comprises a telescopic mechanism 800 connecting two walking frames 200 and a limiting mechanism 700 capable of controlling the telescopic movement and fixation of the telescopic mechanism 800. Through the arrangement of the limiting mechanism, the length of the telescopic mechanism depends on the limiting mechanism, rather than the movement of the two walking frames 200, thereby ensuring that the telescopic mechanism cannot move in the first direction, i.e. the distance between the two walking frames 200 is locked when the automobile is lifted and moved. The distance between the two walking frames 200 is fixed, which ensures the stability of the automobile lifting and moving and avoids the telescopic mechanism from telescoping when the automobile is transferred, which causes the automobile to be stretched in the first direction and affects the automobile.

[0055] Optionally, the limiting mechanism 700 comprises a nut 710, a ball screw 720 and a brake 730, the nut 710 is connected with the telescopic mechanism 800, the telescopic mechanism 800 can drive the nut 710 to move along the first direction; the ball screw 720 is pivoted with any one of the two walking frames 200, the nut 710 is threadedly connected with the ball screw 720, the nut 710 can drive the ball screw 720 to rotate; the brake 730 is installed on the walking frame 200 at one end and can limit the rotation of the ball screw 720 at the other end. By connecting the nut 710 with the telescopic mechanism 800, when the telescopic mechanism 800 moves along the first direction, the nut 710 is driven to move along the first direction, the nut 710 drives the ball screw 720 to rotate, when the telescopic mechanism 800 adjusts the two walking frames 200 to be in place, the brake 730 brakes the rotation of the ball screw 720, so that the nut 710 cannot move along the first direction, thereby ensuring that the telescopic mechanism 800 cannot move along the first direction, realizing more convenient control of the telescopic mechanism 800 to be telescopic or fixed.

[0056] Preferably, the brake 730 is an electromagnetic brake valve, which has the advantages of high precision and safety and reliability.

[0057] Optionally, as shown in Figure 1 and Figure 2 , the walking frame 200 comprises a lower plate 230 and a vertical plate 240 vertically installed on the lower plate 230, the brake 730 is installed on the vertical plate 240, and the ball screw 720 is pivoted with the vertical plate 240 to realize better support for the ball screw 720.

[0058] Preferably, as shown in Figure 1 and Figure 2 , the limiting mechanism 700 further comprises a guide assembly 740, the guide assembly 740 comprises a first connecting plate 741, a plurality of guide rods 742 and a second connecting plate 743, the first connecting plate 741 is installed on the nut 710; the plurality of guide rods 742 are installed on the connecting plate and extend along the first direction, the walking frame 200 is provided with guide holes matched with the outer shape of the guide rods 742, and the guide rods 742 can slide along the corresponding guide holes; the second connecting plate 743 is spaced apart from the first connecting plate 741 in the first direction and located outside the walking frame 200, the end portions of the plurality of guide rods 742 are all installed on the second connecting plate 743, and the second connecting plate 743 is connected with the telescopic mechanism 800. Through the above arrangement, when the nut 710 drives the ball screw 720 to rotate, the nut 710 can move precisely along the first direction, ensuring the uniqueness of the driving direction.

[0059] In this embodiment, the guide rods 742 are provided with two, the two guide rods 742 are arranged on the two sides of the nut 710 along the first direction, in other embodiments, the guide rods 742 can be provided with one or three or more according to the size of the installation space, which is not limited here.

[0060] Preferably, as shown in Figure 1 and Figure 2 The transport trolley 1000 also includes a walking driving member 300, a third transmission member 400, and four sets of walking wheel assemblies 500. The walking driving member 300 is installed on the walking frame 200. The third transmission member 400 is installed on the output end of the walking driving member 300, and has two third output shafts 410. The four sets of walking wheel assemblies 500 are arranged at the four corners of the walking frame 200, respectively. Each walking wheel assembly 500 includes a plurality of walking wheels 510, and each walking wheel 510 is pivotally connected to the walking frame 200. Each third output shaft 410 is connected to two walking wheels 510, and the two walking wheel assemblies 500 in which the two walking wheels 510 are located are oppositely arranged in the second direction. Through the above arrangement, one driving member can drive two sets of walking wheel assemblies 500 to roll at the same time, and then the car can be moved to a new position after being lifted. In this embodiment, two of the four sets of walking wheel assemblies 500 each include two walking wheels 510, and the two walking wheels 510 are independent of each other, i.e., these two sets are two sets without power. Of course, the number of walking wheels 510 can be arbitrarily set, which is not limited here.

[0061] The other two sets of walking wheel assemblies 500 are driven to move by the walking driving member 300. Of course, if the space allows, the two sets of walking wheel assemblies 500 without power can also be correspondingly provided with a walking driving member 300, which is not limited here. Specifically, as shown in Figure 1 and Figure 2 The walking wheel assembly 500 includes two walking wheels 510 arranged side by side in the first direction. One of the two walking wheels 510 is connected to the third output shaft 410. The walking wheel 510 includes a transmission part 511 and a walking part 512 coaxially connected. The transmission part 511 is a gear structure, and the walking part 512 abuts against the ground (or a track or other position where it can move). A reversing gear 520 is arranged between the two walking wheels 510 to realize the same rotation direction of the two walking parts 512. In other embodiments, the powered walking wheel assembly 500 can also be provided with a plurality of walking wheels 510, and a reversing gear 520 can be arranged between adjacent two walking wheels 510, which is not limited here.

[0062] Understandably, when the position of the front and rear wheels of the vehicle changes (the change in position can be measured by sensors on the trolley 1000, which is a standard setting and will not be elaborated here), the movement of at least one of the two driving components 300 of the two trolleys 1000 causes the two trolleys 1000 to move closer or further apart. At this time, the telescopic mechanism 800 extends or retracts as the two move closer or further apart, and drives the nut 710 to move. When the two trolleys 1000 are in their correct positions, the brake 730 is engaged to lock the distance between the two trolleys 1000.

[0063] Preferably, such as Figure 1 As shown, the telescopic mechanism 800 is a scissor fork linkage.

[0064] Specifically, the telescopic mechanism 800 has two connecting ends at each end, and each pair of connecting ends at the same end is pivotally connected to a traveling frame 200. The intersecting rods located in the middle of the telescopic mechanism 800 are all pivotally connected, and the nut 710 is pivotally connected to the pivot points of the two intersecting rods closest to each other in the first direction via the second connecting plate 743. The scissor-fork linkage is... Figure 1 The intersecting linkage mechanism, through the aforementioned arrangement, enables the nut 710 to move during the extension and retraction of the telescopic mechanism 800. It is understood that the telescopic mechanism 800 includes two sets of pivot rod assemblies 810, each comprising multiple sequentially connected and pivotally joined connecting rods 811. At least some corresponding connecting rods 811 in the two sets of pivot rod assemblies 810 intersect and are pivotally connected from the middle. Furthermore, each pivot rod assembly 810 has end rods 2120 at both ends. The end rods 2120 shorten the telescopic mechanism 800 in the second direction (i.e.,...). Figure 1 The dimension in the Y direction (where the Y direction is perpendicular to the X direction). It should be noted that... Figure 1 For simplicity, only one connecting rod 811 is shown in the pivot rod assembly 810. In actual applications, there can be two or more connecting rods 811, with the two end rods 2120 pivotally connected to the two outermost pivot points. The connecting end is the connection position between the end rod 2120 and the traveling frame 200.

[0065] In other embodiments, the second connecting plate 743 is mostly selected to be... Figure 1 By connecting at point A, the telescopic mechanism 800 can be extended or retracted, causing the nut 710 to move in the first direction. However, this connection method means that the nut 710 moves the same amount of distance as point A. Given the limited installation space of the traveling frame 200, this method occupies a large amount of space and will prevent other components from being placed.

[0066] To solve the above problems, such as Figure 1As shown, the telescopic mechanism 800 further comprises two sub-rod 820, the same end of the two sub-rod 820 is respectively pivoted to the middle of two connecting rod 811 close to the nut 710 and cross each other, the other end of the two sub-rod 820 and the connecting end of the nut 710 are collectively pivoted. Through the above setting, in the case of the same telescopic amount of the telescopic mechanism 800, the telescopic amount of the nut 710 is greatly reduced, and the occupied space of the whole distance brake mechanism of the carrier is shortened. It can be understood that, Figure 2 In the second connection plate 743, the pivot point is changed from A to B, and the two sub-rod 820 offsets the displacement of point A while moving in the first direction, and the telescopic amount of the nut 710 is greatly reduced.

[0067] It can be understood that the limiting mechanism 700 and the telescopic mechanism 800 in the embodiment adopt the mode of using driving members combined with scissor fork linkages, which can reduce the telescopic stroke of the driving members compared with using driving members alone to control telescoping, thereby saving time when adjusting the distance between the two walking frame bodies 200.

[0068] Optionally, the carrier trolley 1000 further comprises a carrier clamping mechanism, which is installed on the walking frame body 200 and can clamp two wheels of the car, and the two carrier trolleys 1000 clamp four wheels of the car together to realize lifting of the car.

[0069] In order to realize the clamping function of the two wheels, the carrier clamping mechanism comprises two groups of clamping arm assemblies 30 arranged opposite to each other in the second direction, and the clamping arm assembly 30 comprises two clamping arms 31 that can be folded (empty) or unfolded (clamping wheels). The existing driving of the clamping arm assembly 30 needs to use two driving motors to drive the two groups of clamping arm assemblies 30 respectively, which is more driving members and wastes energy, and using two driving members cannot well ensure the consistency of the folding and unfolding of the paired clamping arms 31 on both sides. Even if one driving member is used for bilateral driving, the transmission structure is relatively complex and inconvenient to maintain.

[0070] In order to solve the above problems, the embodiment provides a carrier clamping mechanism, which comprises a Figure 1 and Figure 2As shown, the carrier clamping mechanism comprises a clamping driving member 10, a transmission assembly 20, and a clamping arm assembly 30. The clamping driving member 10 is installed on the walking frame body 200. The transmission assembly 20 comprises a first transmission member 21 and two second transmission members 22. The first transmission member 21 is installed on the output end of the clamping driving member 10. The first transmission member 21 has two first output shafts 211. The clamping driving member 10 can simultaneously drive the two first output shafts 211 to rotate. The two second transmission members 22 are respectively installed on the two first output shafts 211. The second transmission member 22 has two second output shafts 221. Each first output shaft 211 can simultaneously drive the corresponding two second output shafts 221 to rotate. The clamping arm assembly 30 comprises two clamping arms 31 which are arranged in a first direction. The clamping arms 31 are pivotally connected to the walking frame body 200. The two clamping arms in the same group are respectively transmission-connected to the two second output shafts 221 of one second transmission member 22. The second output shaft 221 can drive the corresponding clamping arm 31 to rotate so that the two clamping arms in the same group simultaneously approach or move away from each other. By adopting one clamping driving member 10, the first transmission member 21 is installed on the output end of the clamping driving member 10 and has two first output shafts 211. One second transmission member 22 is installed on each first output shaft 211. The second transmission member 22 has two second output shafts 221 to control the folding and unfolding of the two clamping arms 31. The above-mentioned carrier clamping mechanism has fewer driving members and a simple transmission structure, is easy to maintain and has high consistency in the action of the clamping arm assemblies 30 on both sides.

[0071] Optionally, the first transmission member 21 and the second transmission member 22 are gearboxes. The gearboxes are standard parts. The gearboxes with corresponding functions can be purchased according to actual needs. Details are not described herein.

[0072] Optionally, as shown in Figure 1 and Figure 2 The walking frame body 200 comprises a lower plate 230 and a vertical plate 240 which is vertically installed on the lower plate 230. In order to achieve better support of the transmission shaft, the first output shaft 211 and the second output shaft 221 are pivotally connected to the vertical plate 240.

[0073] Optionally, the clamping driving member 10 comprises a driving part 11 and a steering part 12 which are connected. The driving part 11 extends in a second direction. The steering part 12 is L-shaped. The first transmission member 21 is installed on the other end of the steering part 12. Through the above-mentioned arrangement, the space is reasonably arranged and the structure is compact.

[0074] Optionally, the driving part 11 is a servo motor. The servo motor has the advantages of high control precision and good stability.

[0075] Preferably, as shown in Figures 1-3 and Figure 1As shown, the second output shaft 221 is coaxially installed with the worm 23, the clamping arm 31 comprises a coaxially installed worm wheel 311 and a rotating arm 312, the worm wheel 311 is engaged with the worm 23, the worm 23 can drive the worm wheel 311 to rotate to make the rotating arm 312 rotate, and the worm wheel 311 and / or the rotating arm 312 are pivoted with the walking frame body 200. The combination of the worm wheel 311 and the worm 23 has a compact structure relative to the combination of the gear and the rack, has a large transmission ratio, reduces the number of rotations of the driving part 11, and has high precision, sufficient power, high precision and high stability in combination with the driving of the servo motor. It can be understood that the pivoting end 3121 of the worm wheel 311 and the rotating arm 312 is installed in a vertical direction (the vertical direction is perpendicular to the X direction and the Y direction, respectively). Specifically, as shown in Figure 2 As shown, the worm wheel 311 and / or the rotating arm 312 are pivoted with the walking frame body 200 through the pivoting shaft 32; in this embodiment, the rotating arm 312 is installed on the pivoting shaft 32 in an interference fit, the worm 23 is installed on the rotating arm 312, both ends of the pivoting shaft 32 are installed with bearings, and both bearings are installed on the walking frame body 200. Specifically, the walking frame body 200 further comprises an upper plate 220, the upper plate 220 is arranged on at least two vertical plates 240, and the two bearings are installed on the upper plate 220 and the lower plate 230, respectively. That is, the worm wheel 311, the rotating arm 312 and the pivoting shaft 32 rotate simultaneously to realize rotation relative to the walking frame body 200. In other embodiments, the pivoting shaft 32 can be fixed on the walking frame body 200, bearings are arranged between the pivoting shaft 32 and the rotating arm 312 or the worm wheel 311, that is, the worm wheel 311 and the rotating arm 312 rotate, and the pivoting shaft 32 is fixed, which can also realize the rotation of the rotating arm 312 relative to the walking frame body 200, which is not limited herein.

[0076] In another embodiment, the worm wheel 311 can also be installed on the pivoting shaft 32 in an interference fit, and the pivoting end 3121 of the rotating arm 312 is installed on the worm wheel 311, which is not limited herein.

[0077] Optionally, the free end 3122 of the rotating arm 312 rotates around the pivoting end 3121 of the rotating arm 312 by ° to switch between the folded and unfolded states.

[0078] Preferably, as shown in Figure 2 and Figure 2 The bearing is a conical roller bearing 33, which has a certain function of preventing axial movement.

[0079] Preferably, as shown in Figure 3 The walking frame body 200 further comprises a cover plate 250, the cover plate 250 is buckled on the upper plate 220 and located above the bearing, which plays a role of shielding the internal structure and beautifying the appearance.

[0080] Since the rotating arm 312 and the worm wheel 311 are usually connected by screws during installation, but the rotating arm 312 is subjected to relatively large circumferential force during the process of “wringing” the wheel, the screw connection has low reliability.

[0081] To solve the above problems, preferably, as shown in Figure 3 and Figure 1 , the worm wheel 311 is C-shaped, and the two ends of the worm wheel 311 abut against the two sides of the rotating arm 312, respectively. Through the above arrangement, the worm wheel 311 not only provides transmission connection, but also limits the two sides of the rotating arm 312, reduces the tangential force bearing of the connecting screw, prevents screw connection failure, and provides another effective means of resisting tangential force.

[0082] Further, as shown in Figure 2 , the pivoted end 3121 of the rotating arm 312 is provided with an avoidance recess 31211, which is C-shaped; the worm wheel 311 includes a limiting portion 3111, which is C-shaped and is shaped to match the avoidance recess 31211, the pivoted end 3121 of the rotating arm 312 is installed on the limiting portion 3111, the limiting portion 3111 can be inserted into the avoidance recess 31211 along the axial direction, and the two ends of the limiting portion 3111 abut against the vertical walls of the avoidance recess 31211. Through the arrangement of the avoidance recess 31211, the worm wheel 311 occupies less space and has a more compact structure.

[0083] Preferably, the worm wheel 311 further includes a thickening portion 3112, which is vertically protruded from the limiting portion 3111 and surrounds the outer periphery of the pivoted end 3121 of the rotating arm 312. The above arrangement appropriately increases the height of the worm wheel 311, ensures the transmission strength of the worm wheel 311, and effectively protects the outer periphery of the pivoted end 3121 of the rotating arm 312. Again, during installation, the rotating arm 312 can be installed along the inner surface of the thickening portion 3112, which facilitates alignment.

[0084] Preferably, as shown in ​ and ​ , the walking frame body 200 is provided with an independent electrical module placing cavity 210 for placing the electrical box 600. The above arrangement makes the parts of the carrying trolley 1000 clear and easy to understand during maintenance. Optionally, the walking driving member 300 and the third transmission member 400 are also placed in the corresponding placing cavities. Optionally, the clamping driving member 10, the first transmission member 21, and the second transmission member 22 are also placed in the corresponding placing cavities. The shape and position of the specific placing cavities can be appropriately adjusted, which will not be described here. Specifically, the electrical module placing cavity 210 and other placing cavities are surrounded by a plurality of vertical plates 240.

[0085] The carrier of the embodiment can be limited to stretch by the carrying distance brake structure after the distance between the two carrying trolleys 1000 is adjusted by the stretch mechanism 2000, so as to ensure the stability of the carrier when lifting and moving the automobile.

[0086] Obviously, the above embodiments of the present application are merely examples for clear illustration of the present application, and are not intended to limit the embodiments of the present application. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present application. It is unnecessary and impossible to enumerate all the embodiments. Any modification, equivalent substitution and improvement within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A distance-adjusting brake structure for a carrier including two traveling frames (200), characterized by, The distance adjusting brake structure of the carrier comprises a telescopic mechanism (800) connecting the two walking frames (200), and a limiting mechanism (700) capable of controlling the telescopic mechanism (800) to move telescopically or be fixed; The limiting mechanism (700) comprises a nut (710) connected with the telescopic mechanism (800), and the telescopic mechanism (800) can drive the nut (710) to move in a first direction; A ball screw (720) is pivoted with any one of the two walking frames (200), the nut (710) is threadedly connected with the ball screw (720), and the nut (710) can drive the ball screw (720) to rotate; A brake (730) is installed at one end of the walking frame (200) and can limit the rotation of the ball screw (720) at the other end; The telescopic mechanism (800) is provided with two connecting ends at two ends respectively, each two connecting ends at the same end are pivoted with one walking frame (200), and the intersecting rods at the middle part of the telescopic mechanism (800) are pivoted and connected, and the nut (710) is pivoted with the pivoting points of the two intersecting rods closest to the nut (710) in the first direction through a second connecting plate (743); The telescopic mechanism (800) comprises two groups of pivoting rod assemblies (810), each pivoting rod assembly (810) comprises a plurality of connecting rods (811) connected in sequence and pivoted, at least part of the connecting rods (811) in the two groups of pivoting rod assemblies (810) are crossed and pivoted at the middle part, the telescopic mechanism (800) further comprises two auxiliary rods (820), the same end of each auxiliary rod (820) is pivoted with the middle part of two connecting rods (811) close to the nut (710) and crossed with each other, and the other end of each auxiliary rod (820) and the connecting end of the nut (710) are commonly pivoted.

2. The carrier pitch brake structure according to claim 1, characterized by The telescopic mechanism (800) is a scissors fork linkage structure.

3. The carrier pitch brake structure according to claim 1, characterized by The brake (730) is an electromagnetic brake valve.

4. The carrier pitch brake structure according to claim 1, characterized by The limiting mechanism (700) further comprises a guide assembly (740), and the guide assembly (740) comprises: A first connecting plate (741) installed on the nut (710); A plurality of guide rods (742) installed on the first connecting plate (741) and extending in the first direction, the walking frame (200) is provided with guide holes matched with the guide rods (742) in shape, and the guide rods (742) can slide along the corresponding guide holes; A second connecting plate (743) spaced apart from the first connecting plate (741) in the first direction and located outside the walking frame (200), the end of each guide rod (742) is installed on the second connecting plate (743), and the second connecting plate (743) is connected with the telescopic mechanism (800).

5. A carrier for transporting a vehicle, characterized in that The carrier comprises two carrier trolleys (1000), and the two carrier trolleys are connected through the distance adjusting brake structure of the carrier according to any one of claims 1-4.

6. The carrier of claim 5, wherein, The carrier trolley (1000) further comprises: A walking driving member (300) is installed on the walking frame (200); A third transmission member (400) is installed on the output end of the walking driving member (300), and the third transmission member (400) has two third output shafts (410); Four walking wheel assemblies (500) are arranged at four corners of the walking frame (200) respectively, and each walking wheel assembly (500) comprises a plurality of walking wheels (510) which are all pivotally connected to the walking frame (200); each third output shaft (410) is connected to two walking wheels (510) respectively, the movement direction of the carrying trolley (1000) is defined as a first direction, and two walking wheel assemblies (500) in which two walking wheels (510) are located are oppositely arranged along a second direction, and the second direction is perpendicular to the first direction.

7. The carrier of claim 5, wherein The carrying trolley (1000) further comprises a carrier clamping mechanism, and the carrier clamping mechanism comprises: A clamping driving member (10) is installed on the walking frame (200); A transmission assembly (20) comprises a first transmission member (21) and two second transmission members (22), the first transmission member (21) is installed on the output end of the clamping driving member (10), the first transmission member (21) has two first output shafts (211), the clamping driving member (10) can simultaneously drive the two first output shafts (211) to rotate, two second transmission members (22) are respectively installed on the two first output shafts (211), the second transmission member (22) has two second output shafts (221), and each first output shaft (211) can simultaneously drive the corresponding two second output shafts (221) to rotate; Two clamping arm assemblies (30) are oppositely arranged in the second direction, each clamping arm assembly (30) comprises two clamping arms (31) which are spaced apart in the first direction, the clamping arms (31) are pivotally connected to the walking frame (200), and the two clamping arms (31) in the same group are respectively transmissionally connected to the two second output shafts (221) of one second transmission member (22), the second output shaft (221) can drive the corresponding clamping arm (31) to rotate so that the two clamping arms (31) in the same group are simultaneously close to or away from each other, and the first direction is perpendicular to the second direction.

8. The carrier of claim 7, wherein, The second output shaft (221) is coaxially installed with a worm (23), the clamping arm (31) comprises a worm wheel (311) and a rotating arm (312) which are coaxially installed, the worm wheel (311) is engaged with the worm (23), the worm (23) can drive the worm wheel (311) to rotate so that the rotating arm (312) rotates, and the worm wheel (311) and / or the rotating arm (312) are respectively pivotally connected to the walking frame (200).

9. The carrier of claim 8, wherein, The worm wheel (311) is C-shaped, and the two ends of the worm wheel (311) are respectively abutted with the two sides of the rotating arm (312).

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