Integral vehicle handling agv wheel base adjustment structure

Abstract

The application provides a whole vehicle carrying AGV wheelbase adjusting structure, which comprises two door-shaped frames, each of which comprises a beam frame, the lower end of each beam frame is connected with a vertical frame, the lower end of each vertical frame is used for connecting a walking tire clamping mechanism, a wheelbase adjusting mechanism is connected between the two door-shaped frames, the wheelbase adjusting mechanism comprises an upper guide locking assembly, the two ends of the beam frame of each door-shaped frame are connected with the two ends of the beam frame of the adjacent door-shaped frame through the upper guide locking assembly, the upper guide locking assembly comprises a first guide sleeve and a first guide rod which are slidably connected, the first guide rod is provided with a rack portion at one end, a main drive shaft assembly which can rotate is further arranged on the beam frame, the two ends of the main drive shaft assembly are provided with transmission gears, each transmission gear is engaged with each rack portion, and the problem that the front and rear tire clamping arms and the interval of the fixed automatic car carrying AGV cannot be adjusted and it is difficult to adapt to the wheelbase of different vehicles is solved.

Description

Technical Field

[0001] This utility model relates to the field of AGV (Automated Guided Vehicle) transfer vehicles, and in particular to an integrated vehicle handling AGV wheelbase adjustment structure. Background Technology

[0002] In automated parking garages, AGVs (Automated Guided Vehicles) are typically responsible for transporting vehicles between parking entrances / exits and various parking spaces. Existing AGVs can be found in CN112727205A, which describes a steering wheel device and method of use for an external clamping transporter for inflatable large tires. This AGV is mainly equipped with multiple sets of clamping arms for lifting vehicle tires. It consists of a front wheel clamping group and a rear wheel clamping group, which can operate independently. Therefore, each group requires four wheels, necessitating a larger installation space. Each wheel also requires an independent steering and driving mechanism, resulting in higher costs. Furthermore, the location of the wheels at both ends restricts the space available for installing other mechanisms in the middle.

[0003] There is a type of AGV that connects the front wheel clamping group and the rear wheel clamping group into one unit via a linkage, which can reduce the number of traveling wheels from eight to four. However, due to the use of rigid rods to connect and support the stability of the AGV itself, it is difficult to change the distance between the front and rear wheel clamping arms, making it difficult to adapt to the wheelbase of different vehicles. Utility Model Content

[0004] This utility model provides an integrated wheelbase adjustment structure for vehicle transport AGVs, which solves the problem that the front and rear tire clamps and spacing of fixed automatic transport AGVs cannot be adjusted, making it difficult to adapt to the wheelbase of different vehicles.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an integral vehicle handling AGV wheelbase adjustment structure, including two portal frames, each portal frame including a beam frame, with uprights connected to the lower ends of both ends of the beam frame, and the lower ends of each upright frame used to connect a walking tire clamping mechanism. A wheelbase adjustment mechanism is connected between the two portal frames, and the wheelbase adjustment mechanism includes an upper guide locking assembly. The two ends of the beam frame of the portal frame are connected to the two ends of the beam frame of the adjacent portal frame through the upper guide locking assembly. The upper guide locking assembly includes a first guide sleeve and a first guide rod that are slidably sleeved, with a rack portion at one end of the first guide rod. A rotatable main drive shaft assembly is also provided on the beam frame, with transmission gears at both ends of the main drive shaft assembly, and each transmission gear meshing with each rack portion.

[0006] In a preferred embodiment, the main drive shaft assembly includes a middle shaft and an end shaft. A second bevel gear is fitted on the middle shaft, and a self-locking drive motor is also provided. A first bevel gear is fitted on the shaft end of the self-locking drive motor. The first bevel gear meshes with the second bevel gear. The middle shaft is connected to the end shaft through a universal joint, and a transmission gear is fitted on the end shaft.

[0007] In a preferred embodiment, the wheelbase adjustment mechanism further includes a lower guide locking assembly. The lower ends of the uprights between the two portal frames are connected by the lower guide locking assembly. The lower guide locking assembly includes an intermediate connecting frame. The two ends of the intermediate connecting frame are provided with side connecting frames that are connected to each portal frame. The two ends of the intermediate connecting frame are provided with second guide rods. Each side connecting frame is provided with a second guide sleeve. The second guide sleeve is slidably sleeved with the second guide rod.

[0008] In the preferred embodiment, the intermediate connecting frame is further provided with a first rack rod at both ends, and each second guide sleeve is further provided with a first locking mechanism, which locks the first rack rod.

[0009] In a preferred embodiment, the first locking mechanism includes a second linear drive cylinder and a movable pin mounted on the side connecting frame. The shaft end of the second linear drive cylinder is connected to a pusher frame, and the front end of the pusher frame is provided with a rotatable roller. The movable pin contains a roller, which rolls in the inclined channel. One end of the movable pin is provided with a locking tooth. The pusher frame moves linearly so that the roller presses against the inner wall of the inclined channel, causing the locking tooth to engage with or disengage from the first rack.

[0010] In the preferred embodiment, the beam frame includes a first half-frame and a second half-frame. The first half-frame is provided with a third guide rod at its end, and the second half-frame is provided with a third guide sleeve. The third guide rod and the third guide sleeve are slidably connected.

[0011] In the preferred embodiment, the first half of the frame is further provided with a second rack and pinion, and the second half of the frame is further provided with a second locking mechanism, which locks the second rack and pinion.

[0012] The beneficial effects of this utility model are as follows: the gantry frames of the front and rear traveling mechanisms are connected by a guide rod and guide sleeve structure, and the extension length of the guide rod is adjusted by the drive shaft and the transmission mechanism. The distance between the two gantry frames can be adjusted to adjust the spacing of the front and rear tire clamping arms at the lower end to adapt to different wheelbases; the upper beam frame of the gantry frame adopts a guide rod and guide sleeve structure to form a telescopic structure, and is equipped with a length locking mechanism, which can adjust the inner width of the gantry frame to adapt to the width of different vehicles. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is a schematic diagram showing the application location of the wheelbase adjustment mechanism.

[0015] Figure 2 This is a structural diagram of a portal frame.

[0016] Figure 3 This is a diagram of the drive structure of the main drive shaft assembly.

[0017] Figure 4 This is a structural diagram of the bottom-guided locking component.

[0018] Figure 5 This is a schematic diagram of the internal workings of the locking mechanism.

[0019] Figure 6 This is a schematic diagram of the width adjustment mechanism.

[0020] Figure 7 This is a schematic diagram of the width adjustment mechanism with an added drive cylinder.

[0021] In the figure: gantry frame 1; upright frame 101; beam frame 102; wheelbase adjustment mechanism 2; upper guide locking assembly 201; lower guide locking assembly 202; first guide sleeve 203; first guide rod 204; rack and pinion section 205; main drive shaft assembly 206; self-locking drive motor 207; transmission gear 208; first bevel gear 209; second bevel gear 210; middle shaft 211; end shaft 212; universal joint 213; intermediate connecting frame 214; side connecting frame 2 15; Second guide rod 216; Second guide sleeve 217; First rack rod 218; Width adjustment mechanism 3; First half frame 301; Second half frame 302; Third guide rod 303; Third guide sleeve 304; Second rack rod 305; First linear drive cylinder 306; Walking tire clamping mechanism 4; First locking mechanism 5; Second linear drive cylinder 501; Pushing frame 502; Roller 503; Inclined groove 504; Movable pin 505; Clamping tooth part 506; Second locking mechanism 6. Detailed Implementation

[0022] like Figure 1-7 In this paper, an integrated vehicle handling AGV wheelbase adjustment structure is disclosed, comprising two gantry frames 1. Each gantry frame 1 includes a beam frame 102, with uprights 101 connected to the lower ends of both ends of the beam frame 102. The lower ends of each upright 101 are used to connect to a walking tire clamping mechanism 4. A wheelbase adjustment mechanism 2 is connected between the two gantry frames 1. The wheelbase adjustment mechanism 2 includes an upper guide locking assembly 201. The two ends of the beam frame 102 of the gantry frame 1 are connected to the two ends of the beam frame 102 of the adjacent gantry frame 1 through the upper guide locking assembly 201. The upper guide locking assembly 201 includes a first guide sleeve 203 and a first guide rod 204 that are slidably sleeved. One end of the first guide rod 204 is provided with a rack portion 205. A rotatable main drive shaft assembly 206 is also provided on the beam frame 102. The two ends of the main drive shaft assembly 206 are provided with transmission gears 208, and each transmission gear 208 meshes with each rack portion 205.

[0023] Because the lower walking wheel is placed inside and the upper end is connected by the upper guide locking component 201, even if the walking tire clamping mechanism 4 is a single-wheel design, it can stand steadily on the ground.

[0024] When the main drive shaft assembly 206 rotates, the transmission gears 208 at both ends mesh with the rack and pinion 205, causing the first guide rod 204 to move horizontally. The traveling wheels of the traveling tire clamping mechanism 4 move synchronously, adjusting the distance between the two gantry frames 1. The clamping arms of the traveling tire clamping mechanism 4 adapt to the vehicle wheelbase.

[0025] In a preferred embodiment, the main drive shaft assembly 206 includes a middle shaft 211 and an end shaft 212. A second bevel gear 210 is fitted on the middle shaft 211. A self-locking drive motor 207 is also provided. A first bevel gear 209 is fitted on the shaft end of the self-locking drive motor 207. The first bevel gear 209 meshes with the second bevel gear 210. The middle shaft 211 is connected to the end shaft 212 through a universal joint 213. A transmission gear 208 is fitted on the end shaft 212.

[0026] When the self-locking drive motor 207 is working, it transmits power to both ends through the central shaft 211, so that the transmission gears 208 on both sides rotate synchronously.

[0027] Universal joint 213 can reduce the coaxiality requirements of the middle shaft 211 and the end shaft 212, and reduce the difficulty of machining and installation.

[0028] In a preferred embodiment, the wheelbase adjustment mechanism 2 further includes a lower guide locking assembly 202. The lower ends of the uprights 101 between the two portal frames 1 are connected by the lower guide locking assembly 202. The lower guide locking assembly 202 includes an intermediate connecting frame 214. The two ends of the intermediate connecting frame 214 are provided with side connecting frames 215 that are connected to each portal frame 1. The two ends of the intermediate connecting frame 214 are provided with second guide rods 216. Each side connecting frame 215 is provided with a second guide sleeve 217. The second guide sleeve 217 is slidably sleeved with the second guide rod 216.

[0029] The upper end of the portal frame 1 is connected by an upper guide locking component 201, and the lower end of the portal frame 1 is connected by a lower guide locking component 202. The multi-point three-dimensional connection structure makes the connection between the two portal frames 1 more stable and reliable under the premise of adjustable wheelbase.

[0030] In the preferred embodiment, the intermediate connecting frame 214 is further provided with a first rack rod 218 at both ends, and each second guide sleeve 217 is further provided with a first locking mechanism 5, which locks the first rack rod 218.

[0031] In a preferred embodiment, the first locking mechanism 5 includes a second linear drive cylinder 501 and a movable pin 505 mounted on the side connecting frame 215. The shaft end of the second linear drive cylinder 501 is connected to a pusher frame 502. The front end of the pusher frame 502 is provided with a rotatable roller 503. The movable pin 505 contains the roller 503, which rolls in the inclined channel 504. One end of the movable pin 505 is provided with a locking tooth 506. The pusher frame 502 moves linearly so that the roller 503 presses against the inner wall of the inclined channel 504, causing the locking tooth 506 to engage with or disengage from the first rack 218.

[0032] The second linear drive cylinder 501 can be an electric cylinder. When the pusher 502 is pulled, the roller 503 squeezes the inclined surface on the inner wall of the inclined channel 504, causing the locking tooth part 506 to engage with the teeth of the first rack rod 218 and lock it in place. Conversely, the locking tooth part 506 disengages from the first rack rod 218, and the wheelbase can be adjusted.

[0033] In a preferred embodiment, the beam frame 102 includes a first half-frame 301 and a second half-frame 302. The first half-frame 301 is provided with a third guide rod 303 at its end, and the second half-frame 302 is provided with a third guide sleeve 304. The third guide rod 303 and the third guide sleeve 304 are slidably connected.

[0034] The first half-frame 301, the second half-frame 302, the third guide rod 303, and the third guide sleeve 304 constitute the width adjustment mechanism 3. An electric first linear drive cylinder 306 can be installed on the second half-frame 302. The shaft end of the first linear drive cylinder 306 pushes and pulls the first half-frame 301, and the traveling wheel of the traveling clamping mechanism 4 turns 90 degrees horizontally to adjust the distance between the first half-frame 301 and the second half-frame 302, so as to widen or narrow the distance between the two uprights 101 and adjust the overall width of the portal frame 1.

[0035] In the preferred embodiment, the first half-frame 301 is further provided with a second rack rod 305, and the second half-frame 302 is further provided with a second locking mechanism 6, which locks the second rack rod 305.

[0036] The structure of the second locking mechanism 6 is the same as that of the first locking mechanism 5.

[0037] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. An integrated wheelbase adjustment structure for a vehicle handling AGV, characterized in that: The system includes two portal frames (1), each including a beam frame (102). Uprights (101) are connected to the lower ends of both ends of the beam frame (102). The lower ends of each upright (101) are used to connect to a traveling clamping mechanism (4). A wheelbase adjustment mechanism (2) is connected between the two portal frames (1). The wheelbase adjustment mechanism (2) includes an upper guide locking assembly (201). The two ends of the beam frame (102) of the portal frame (1) are connected to the adjacent uprights (102) via the upper guide locking assembly (201). The beam frame (102) of the portal frame (1) is connected at both ends. The upper guide locking assembly (201) includes a first guide sleeve (203) and a first guide rod (204) that are slidably sleeved. One end of the first guide rod (204) is provided with a rack part (205). The beam frame (102) is also provided with a rotatable main drive shaft assembly (206). Both ends of the main drive shaft assembly (206) are provided with transmission gears (208). Each transmission gear (208) meshes with each rack part (205).

2. The integral vehicle handling AGV wheelbase adjustment structure according to claim 1, characterized in that: The main drive shaft assembly (206) includes a middle shaft (211) and an end shaft (212). A second bevel gear (210) is fitted on the middle shaft (211), and a self-locking drive motor (207) is also provided. A first bevel gear (209) is fitted on the shaft end of the self-locking drive motor (207). The first bevel gear (209) meshes with the second bevel gear (210). The middle shaft (211) is connected to the end shaft (212) through a universal joint (213), and a transmission gear (208) is fitted on the end shaft (212).

3. The integral vehicle handling AGV wheelbase adjustment structure according to claim 1, characterized in that: The wheelbase adjustment mechanism (2) also includes a lower guide locking assembly (202). The lower ends of the uprights (101) between the two portal frames (1) are connected by the lower guide locking assembly (202). The lower guide locking assembly (202) includes an intermediate connecting frame (214). The two sides of the intermediate connecting frame (214) are provided with side connecting frames (215) that are connected to each portal frame (1). The two ends of the intermediate connecting frame (214) are provided with second guide rods (216). Each side connecting frame (215) is provided with a second guide sleeve (217). The second guide sleeve (217) and the second guide rod (216) are slidably sleeved together.

4. The wheelbase adjustment structure of the integrated vehicle handling AGV according to claim 3, characterized in that: The intermediate connecting frame (214) is also provided with a first rack rod (218) at both ends, and each second guide sleeve (217) is also provided with a first locking mechanism (5), which locks the first rack rod (218).

5. The integral vehicle handling AGV wheelbase adjustment structure according to claim 4, characterized in that: The first locking mechanism (5) includes a second linear drive cylinder (501) and a movable pin (505) mounted on the side connecting frame (215). The shaft end of the second linear drive cylinder (501) is connected to the pusher frame (502). The front end of the pusher frame (502) is provided with a rotatable roller (503). The movable pin (505) is provided with the roller (503). The roller (503) is stuck in the inclined channel (504) and rolls. One end of the movable pin (505) is provided with a locking tooth (506). The pusher frame (502) moves linearly so that the roller (503) presses against the inner wall of the inclined channel (504), so that the locking tooth (506) is stuck on the first rack (218) or disengaged from the first rack (218).

6. The integrated vehicle handling AGV wheel track adjustment structure of claim 1, wherein: The beam frame (102) includes a first half frame (301) and a second half frame (302). The first half frame (301) is provided with a third guide rod (303) at its end, and the second half frame (302) is provided with a third guide sleeve (304). The third guide rod (303) and the third guide sleeve (304) are slidably connected.

7. The wheelbase adjustment structure of the integrated vehicle handling AGV according to claim 5, characterized in that: The first half-frame (301) is also provided with a second rack rod (305), and the second half-frame (302) is also provided with a second locking mechanism (6), which locks the second rack rod (305).

Images