AGV trolley with lifting function

Abstract

The AGV trolley with the lifting function comprises a trolley body, a pair of wheels are arranged at the lower end of the trolley body, grooves are formed in the positions, located at the lower end of the trolley body, of the two sides of the wheels, a pair of fixing discs are arranged in the grooves, movable grooves are formed in the upper ends of the fixing discs, reinforcing assemblies are arranged in the movable grooves, and the reinforcing assemblies are arranged in the movable grooves. The upper end of the fixing disc is connected with a reinforcing assembly, an operation cavity is formed in the vehicle body, a transmission assembly is arranged in the operation cavity, and the upper end of the transmission assembly is connected with a containing table. The AGV with the lifting function has the stable lifting function and can conduct goods handover with goods shelves of different heights, when goods are lifted to the highest point, the stability of a chassis of the AGV can be enhanced, the risk that the AGV turns on one side is avoided, the stability of the AGV is ensured, and the service life of the AGV is prolonged. And the application safety and reliability of the AGV trolley in logistics transportation and storage automation are obviously improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to lifting transport robot technical field, concretely is a kind of AGV dolly with lifting function. BACKGROUND

[0002] The existing warehousing industry adopts the transport robot integrated with automatic climbing ability and moving ability to store and take goods and carry goods, wherein, Chinese patent number: CN202420539141.X discloses a kind of transport robot, comprising: AGV dolly and lifting frame, the lifting frame is located on AGV dolly;Lifting mechanism, the lifting mechanism is located on lifting frame;At least one fork arm body, the fork arm body is located on lifting mechanism and can be lifted along with lifting mechanism, support site is arranged on the top end surface of the fork arm body, and the support site is adapted to be compatible with low-position buffer site or high-position buffer site of goods shelf.The utility model is provided with multiple fork arm bodies on lifting mechanism, can control each fork arm body to be lifted by lifting mechanism according to demand, the fork arm body located at bottom can be compatible with low-position buffer site on goods shelf, and also can be compatible with high-position buffer site on goods shelf, the fork arm body located at top can be compatible with high-position buffer site on goods shelf, so flexible support multiple buffer sites on goods shelf can be realized, and carrying efficiency is improved.

[0003] Based on the above, the present inventor finds that the following problems exist: the above-mentioned device can well support the multiple buffer sites on the goods shelf and improve the carrying efficiency, but the goods will cause the AGV dolly chassis to be unstable when the AGV dolly is lifting, and there is a risk of tipping over. UTILITY MODEL CONTENT

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of AGV dolly with lifting function, including car body, the lower end of the car body is equipped with a pair of wheels, recess is set in the both sides of the wheel and at the lower end of the car body, a pair of fixed disc is arranged in the recess, movable slot is arranged in the upper end of the fixed disc, reinforcing assembly is arranged in the movable slot, the upper end of the fixed disc is connected with reinforcing assembly, and operating cavity is arranged in the car body, transmission assembly is arranged in the operating cavity, and placing table is connected to the upper end of the transmission assembly;

[0005] The reinforcing assembly includes rack two, gear and rack one, rack one, rack two and rack two are movably arranged in the movable slot, the side surface of rack one is engaged with the gear, the gear is movably connected with the side surface of the movable slot by column body at both ends, the end of the gear away from rack one is engaged with rack two, and the lower end of rack one is provided with spring, the lower end of the spring is connected with the bottom end of the movable slot, the upper end of rack one is provided with link plate, and the lower end of rack two penetrates through the bottom end of the movable slot and is connected with the upper end of the fixed disc by extending into the recess.

[0006] Further, the transmission assembly includes a double-shaft driving motor, the double-shaft driving motor is located in the operation cavity, and the output ends of the double-shaft driving motor are provided with rotating shafts, the rotating shafts are connected with bevel gears one, the bevel gears one are engaged with bevel gears two, the bevel gears two are provided with connecting shafts, the upper ends of the connecting shafts pass through the top end of the operation cavity and extend out of the upper end of the vehicle body and are provided with screws, and the screws are in threaded connection with the placing table.

[0007] Further, the upper end of the connecting plate extends out of the upper end of the vehicle body and is in movable connection with the placing table, the upper end of the connecting plate is provided with a clamping block, the longitudinal height of the clamping block is less than the longitudinal height of the screw, and the height difference between the top end of the clamping block and the top end of the screw is equal to the distance between the lower end of the vehicle body and the ground.

[0008] Further, the upper end of the vehicle body is provided with a pair of limiting rods, and the limiting rods are in movable connection with the placing table.

[0009] Further, the fixed disc is a hollow suction disc.

[0010] Compared with the prior art, the AGV trolley with the lifting function has the following advantages:

[0011] (1) When the placing table is lifted to the top end position of the screw along with the operation of the transmission assembly, the placing table can drive the clamping block to rise by a distance, drive the connecting plate and the rack to move together, and move downward by the same height under the action of the gear, so that the fixed disc is fixedly connected with the ground, and the reinforcement effect of the vehicle body chassis and the ground can be realized when the goods are moved to the highest point, so that the lifting of the goods and the movement of the vehicle body are more stable, and the risk of the vehicle body falling is avoided; when the trolley does not perform lifting operation, the placing table is located away from the clamping block on the screw, and the rack one moves to the bottom end of the movable groove under the action of the spring, so that the rack two moves upward to the initial position, and the fixed disc is away from the ground, so that the movement of the trolley on the ground is not hindered.

[0012] (2) The double-shaft driving motor is started to drive the rotating shaft to rotate, drive the bevel gear one to rotate, and then drive the bevel gear two to rotate, and then drive the screw to rotate, and the placing table is designed to be in threaded connection with the screw, so that the placing table rises and falls on the screw, and the stable lifting effect of the AGV trolley is realized, wherein only one double-shaft driving motor is needed to drive, and the power consumption of the lifting operation of the trolley is reduced; the fixed disc is designed to be a hollow suction disc, the fixed disc is firmly fixed with the ground when the fixed disc is attached to the ground, so as to indirectly increase the fixing effect of the vehicle body and the ground, and the stability of the AGV trolley chassis can be reinforced. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0014] Figure 2 It is the inside structure connection schematic view of the utility model movable slot;

[0015] Figure 3 It is the inside structure schematic view of the utility model operation cavity;

[0016] Figure 4 It is the reinforcing assembly structure schematic view of the utility model;

[0017] In the figure: 1, car body;2, wheel;3, recess;4, placement platform;5, screw;6, limit rod;7, link plate;8, movable slot;9, operation cavity;10, double shaft drive motor;11, rotating shaft;12, bevel gear one;13, bevel gear two;14, clamping block;15, rack one;16, rack two;17, spring;18, fixed disc;19, gear. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0019] Please refer to Figures 1-4 The utility model provides a technical scheme:

[0020] Embodiment:

[0021] In this embodiment, an AGV car with lifting function, including car body 1, the lower end of car body 1 is equipped with a pair of wheels 2, the both sides of wheel 2 and located at the lower end of car body 1 are all equipped with recess 3, the recess 3 is equipped with a pair of fixed disc 18, the upper end of fixed disc 18 is equipped with movable slot 8, the movable slot 8 is equipped with reinforcing assembly, the upper end of fixed disc 18 is connected with reinforcing assembly, and the car body 1 is equipped with operation cavity 9, the operation cavity 9 is equipped with transmission assembly, the upper end of transmission assembly is connected with placement platform 4;

[0022] The reinforcing assembly comprises a rack two 16, a gear 19 and a rack one 15, the rack one 15, the rack two 16 and the rack two 16 are movably arranged in the movable groove 8, the rack one 15 is in engagement with the gear 19 in the side surface, the gear 19 is movably connected with the side surface of the movable groove 8 through the column at both ends, the gear 19 is in engagement with the rack two 16 at the end away from the rack one 15, the lower end of the spring 17 is connected with the bottom end of the movable groove 8, the upper end of the rack one 15 is provided with the connecting plate 7, the lower end of the rack two 16 penetrates through the bottom end of the movable groove 8 and extends into the recess 3 and is connected with the upper end of the fixed disc 18.

[0023] The transmission assembly comprises a double-shaft driving motor 10, the double-shaft driving motor 10 is arranged in the operation cavity 9, the output end of the double-shaft driving motor 10 is provided with a rotating shaft 11, the rotating shaft 11 is connected with a bevel gear one 12, the bevel gear one 12 is in engagement with a bevel gear two 13, the bevel gear two 13 is provided with a connecting shaft, the upper end of the connecting shaft penetrates through the top end of the operation cavity 9 and extends out of the upper end of the vehicle body 1 and is provided with a lead screw 5, the lead screw 5 is in threaded connection with the placement table 4;

[0024] The double-shaft driving motor 10 is started to drive the rotating shaft 11 to rotate, the bevel gear one 12 is driven to rotate, the bevel gear two 13 is driven to rotate, and then the lead screw 5 is driven to rotate, the placement table 4 is designed to be in threaded connection with the lead screw 5, so that the placement table 4 is lifted and lowered on the lead screw 5, the stable lifting effect of the AGV trolley is realized, and only one double-shaft driving motor 10 is needed to drive, so that the power consumption of the lifting operation of the trolley is reduced.

[0025] The upper end of the connecting plate 7 extends out of the upper end of the vehicle body 1 and is movably connected with the placement table 4, the upper end of the connecting plate 7 is provided with a clamping block 14, the longitudinal height of the clamping block 14 is less than the longitudinal height of the lead screw 5, and the height difference between the top end of the clamping block 14 and the top end of the lead screw 5 is equal to the distance between the lower end of the vehicle body 1 and the ground;

[0026] By designing the longitudinal height of the locking block 14 to be less than that of the lead screw 5, and the height difference between the top of the locking block 14 and the top of the lead screw 5 equal to the distance between the lower end of the vehicle body 1 and the ground, when the placement platform 4 rises to the top position of the lead screw 5 with the operation of the transmission assembly, the placement platform 4 can drive the locking block 14 to rise a certain distance, causing the connecting plate 7 and rack 15 to operate in the same direction. Under the action of the gear 19, rack 16 moves downward in the opposite direction by the same height, so that the fixed plate 18 is fixedly connected to the ground. Thus, when the goods are moved to the highest point, the chassis of the vehicle body 1 can be reinforced to the ground, thereby making the lifting of the goods and the operation of the vehicle body 1 more stable and avoiding the risk of the vehicle body 1 tipping over. When the trolley is not performing lifting operations, the placement platform 4 is located away from the locking block 14 on the lead screw 5. Under the action of the spring 17, rack 15 moves to the bottom of the movable groove 8, thereby driving rack 16 to move upward to the initial position, so that the fixed plate 18 is away from the ground, thus not hindering the movement of the trolley on the ground.

[0027] Among them, a pair of limiting rods 6 are provided on the upper end of the vehicle body 1, and the limiting rods 6 are movably connected to the placement platform 4;

[0028] The design of a pair of limit rods 6 can limit the placement platform 4, making the lifting action of the placement platform 4 more stable.

[0029] The fixed disk 18 contains a hollow suction cup;

[0030] By using a hollow suction cup design for the fixed plate 18, when the fixed plate 18 is in contact with the ground, the hollow air inside the fixed plate 18 is squeezed, so that the fixed plate 18 is firmly fixed to the ground, thereby indirectly increasing the fixing effect between the vehicle body 1 and the ground. This can strengthen the stability of the AGV chassis, avoid the risk of the AGV overturning, and ensure the stability of the vehicle.

[0031] Working principle: When lifting operations are required, the dual-shaft drive motor 10 is started, driving the rotating shaft 11 to rotate, which in turn drives the bevel gear 12 to rotate, thereby causing the bevel gear 13 to rotate, and then the lead screw 5 to rotate. Due to the threaded connection between the placement platform 4 and the lead screw 5, the placement platform 4 rises and falls on the lead screw 5, thus realizing the lifting operation of the trolley. When the placement platform 4 rises to the top position of the lead screw 5 with the operation of the transmission assembly, it can drive the locking block 14 to rise a certain distance, causing the connecting plate 7 and the rack 15 to operate in the same direction. Under the action of the gear 19, the rack... The second rack 16 moves downwards by the same height, fixing the plate 18 to the ground. This reinforces the chassis of the vehicle body 1 when the goods are moved to the highest point, making the lifting and lowering of the goods and the operation of the vehicle body 1 more stable and avoiding the risk of the vehicle body 1 tipping over. When the trolley is not lifting, the placement platform 4 is positioned away from the locking block 14 on the lead screw 5. Under the action of the spring 17, the rack 15 moves to the bottom of the movable slot 8, thereby driving the second rack 16 upwards to the initial position, moving the fixed plate 18 away from the ground, so as not to hinder the movement of the trolley on the ground.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An AGV vehicle with lifting function, comprising a vehicle body (1), characterized in that: The lower end of the vehicle body (1) is provided with a pair of wheels (2), the two sides of the wheels (2) and the lower end of the vehicle body (1) are provided with grooves (3), the grooves (3) are provided with a pair of fixed discs (18), the upper end of the fixed disc (18) is provided with a movable groove (8), the movable groove (8) is provided with a reinforcing assembly, the upper end of the fixed disc (18) is connected with the reinforcing assembly, and the vehicle body (1) is provided with an operation cavity (9), the operation cavity (9) is provided with a transmission assembly, and the upper end of the transmission assembly is connected with a placement table (4). The reinforcing assembly comprises a rack two (16), a gear (19) and a rack one (15), the movable groove (8) is movably provided with the rack one (15), the rack two (16) and the rack two (16), the side surface of the rack one (15) is engaged with the gear (19), the gear (19) is movably connected with the side surface of the movable groove (8) through the column at both ends, the end, away from the rack one (15), of the gear (19) is engaged with the rack two (16), and the lower end of the rack one (15) is provided with a spring (17), the lower end of the spring (17) is connected with the bottom end of the movable groove (8), and the upper end of the rack one (15) is provided with a connecting plate (7), the lower end of the rack two (16) penetrates through the bottom end of the movable groove (8) and extends into the groove (3) and is connected with the upper end of the fixed disc (18).

2. The AGV vehicle with lifting function according to claim 1, characterized in that: The transmission assembly comprises a double-shaft driving motor (10), the double-shaft driving motor (10) is located in the operation cavity (9), and the output ends of the double-shaft driving motor (10) are provided with rotating shafts (11), the rotating shafts (11) are connected with bevel gears one (12), the bevel gears one (12) are engaged with bevel gears two (13), the bevel gears two (13) are provided with a connecting shaft, the upper end of the connecting shaft penetrates through the top end of the operation cavity (9) and extends out of the upper end of the vehicle body (1) and is provided with a lead screw (5), and the lead screw (5) is threadedly connected with the placement table (4).

3. The AGV vehicle with lifting function according to claim 1, characterized in that: The upper end of the connecting plate (7) extends out of the upper end of the vehicle body (1) and is movably connected with the placement table (4), the upper end of the connecting plate (7) is provided with a clamping block (14), the longitudinal height of the clamping block (14) is less than that of the lead screw (5), and the height difference between the top end of the clamping block (14) and the top end of the lead screw (5) is equal to the distance between the lower end of the vehicle body (1) and the ground.

4. The AGV vehicle with lifting function according to claim 3, characterized in that: The upper end of the vehicle body (1) is provided with a pair of limiting rods (6), and the limiting rods (6) are movably connected with the placement table (4).

5. The AGV vehicle with lifting function according to claim 4, characterized in that: The fixed disc (18) is hollow and is provided with a suction disc.

Images