Tail jacking mechanism and latent traction AGV (Automatic Guided Vehicle)

Abstract

The utility model discloses a vehicle tail jacking mechanism and a latent traction AGV. The vehicle tail jacking mechanism comprises a supporting assembly. The driving transmission assembly is arranged on the supporting assembly; the two lead screw assemblies are rotationally arranged on the supporting assembly and are in transmission connection with the driving transmission assembly; the jacking plate is in transmission connection with the two screw rod assemblies; the driving transmission assembly comprises a driving motor; the driving gear is fixedly arranged on an output shaft of the driving motor; and the two transmission gear structures are rotationally arranged on the fixing plate and are in meshing transmission connection with the driving gears correspondingly, and the two transmission gear structures are in meshing transmission connection with the corresponding lead screw assemblies correspondingly. The driving motor synchronously drives the two transmission gear structures to rotate through the driving gear, and the two transmission gear structures drive the corresponding lead screw assemblies to move, so that lifting operation of the jacking plate is achieved, and the problems that an existing tailstock jacking mechanism is not stable enough in supporting and high in cost are effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of AGV technology, and in particular to a rear lifting mechanism and a hidden traction AGV trolley. Background Technology

[0002] The AGV (Automated Guided Vehicle) is an automated transportation device that can be hidden under the bottom of a cargo trolley. It is mainly used to tow vehicles loaded with goods, operating flexibly in limited spaces to achieve efficient cargo handling. The AGV features intelligent navigation, flexible adaptability, and safety and stability, making it suitable for scenarios such as warehouses and manufacturing. In the future, it will become more intelligent, improving the level of logistics automation.

[0003] In existing technologies, the rear lifting mechanism of a lurking AGV typically uses a motor to directly drive a single lead screw for lifting. Such a lifting mechanism has a single support point and a limited support area, resulting in insufficient stability. Other rear lifting mechanisms use multiple motors to drive corresponding lead screws for lifting. While such mechanisms offer more stable support, they are more expensive. Therefore, this paper provides a rear lifting mechanism and a lurking AGV to solve the above problems. Summary of the Invention

[0004] One of the purposes of this utility model is to provide a rear lifting mechanism and a hidden traction AGV trolley to solve the problems of insufficient support and high cost of existing rear lifting mechanisms.

[0005] This utility model relates to a rear-end lifting mechanism and a latent traction AGV trolley, which can be achieved through the following technical solutions:

[0006] This utility model discloses a rear lifting mechanism for vehicles, comprising a support assembly; a drive transmission assembly disposed on the support assembly; two lead screw assemblies rotatably disposed on the support assembly and respectively connected to the drive transmission assembly; and a lifting plate connected to the two lead screw assemblies, wherein the drive transmission assembly synchronously drives the two lead screw assemblies to move the lifting plate in the longitudinal direction.

[0007] The drive transmission assembly includes a drive motor mounted on the support assembly, the drive motor being capable of forward and reverse rotation; a drive gear fixedly mounted on the output shaft of the drive motor; and two transmission gear structures rotatably mounted on the fixed plate and respectively meshing with the drive gear, both of which are respectively meshing with the corresponding lead screw assembly.

[0008] In one embodiment, the transmission gear structure includes a first bearing fixedly mounted on the support assembly; a rotating shaft rotatably mounted in the first bearing; and a transmission gear body fixedly connected to the rotating shaft, which meshes and transmits power with the drive gear and the corresponding lead screw assembly, respectively.

[0009] In one embodiment, the support assembly includes a mounting bracket and a fixing plate that is horizontally fixed on the mounting bracket; a lower limit sensor and an upper limit sensor are respectively fixedly disposed on the rising mounting bracket.

[0010] In one embodiment, the fixing plate is provided with a plurality of mounting holes, and the drive transmission assembly and the two lead screw assemblies are respectively mounted on the fixing plate through the corresponding mounting holes.

[0011] In one embodiment, the lead screw assembly includes a driven gear that meshes with a corresponding transmission gear body for transmission; a second bearing fixedly disposed in a corresponding mounting hole on the fixed plate; a bushing fixedly disposed through the lifting plate; and a lead screw body that movably passes through the second bearing and is fixedly connected to the driven gear, and is transmissionally connected to the bushing.

[0012] In one embodiment, a fastening nut is provided at the connection between the driven gear and the lead screw body.

[0013] In one embodiment, the inner wall of the bushing is provided with an internal thread, which is threadedly connected to the external thread on the lead screw body.

[0014] In one embodiment, the lifting plate is provided with two bushing mounting holes, and the two bushings are respectively fixedly installed in the corresponding bushing mounting holes.

[0015] In one embodiment, a sensing plate is fixedly provided on the lifting plate, and the sensing plate can perform sensing operations with the lower limit sensor and the upper limit sensor respectively.

[0016] This utility model discloses a hidden traction AGV trolley, which includes the rear lifting mechanism described in any of the above-mentioned claims.

[0017] Compared with the prior art, the beneficial effects of this utility model of a rear lifting mechanism and a lurking AGV trolley are as follows:

[0018] This utility model discloses a rear lifting mechanism for a vehicle and a drive motor for forward and reverse rotation in a lurking AGV trolley. It synchronously drives two transmission gear structures to rotate via a drive gear, which in turn drives corresponding lead screw assemblies. These lead screw assemblies then lift the lifting plate, effectively solving the problems of insufficient stability and high cost in existing rear lifting mechanisms. By setting upper and lower limit sensors on the support assembly and an induction plate on the lifting plate, the drive motor is stopped by the sensing of the induction plate and the two limit sensors, thus limiting the lifting movement of the lifting plate. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a rear lifting mechanism of this utility model;

[0021] Figure 2 yes Figure 1 The diagram shown is a structural schematic of a rear-end lifting mechanism of this utility model from another perspective.

[0022] Figure 3 yes Figure 1 The exploded structural diagram of a rear lifting mechanism of this utility model is shown, including a drive transmission assembly, a lead screw assembly, and a lifting plate.

[0023] Figure 4 yes Figure 3 The exploded structural diagram of the drive transmission assembly shown.

[0024] Figure 5 yes Figure 3 The diagram shows the structure of the lead screw assembly.

[0025] Figure 6 yes Figure 3 The diagram shows the structure of the lifting plate.

[0026] Figure 7 This is a structural schematic diagram of a hidden traction AGV trolley according to the present invention.

[0027] The diagram shows: 10, rear lifting mechanism; 11, support assembly; 111, mounting bracket; 112, fixing plate; 1121, mounting hole; 113, lower limit sensor; 114, upper limit sensor; 12, drive transmission assembly; 121, drive motor; 122, drive gear; 123, transmission gear structure; 1231, first bearing; 1232, rotating shaft; 1233, transmission gear body; 13, lead screw assembly; 131, driven gear; 1311, fastening nut; 132, second bearing; 133, lead screw body; 134, bushing; 14, lifting plate; 141, bushing mounting hole; 142, sensing plate. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0030] Please see Figures 1-3 As shown, the rear lifting mechanism 10 of this utility model is mainly applied to a lurking AGV trolley. It lifts the material cart on the lurking AGV trolley. The rear lifting mechanism 10 includes a support assembly 11, a drive transmission assembly 12, two lead screw assemblies 13, and a lifting plate 14. The support assembly 11 is fixedly installed in the AGV body. The drive transmission assembly 12 is installed on the support assembly 11. The two lead screw assemblies 13 are rotatably installed on the support assembly 11 and are respectively connected to the drive transmission assembly 12. Both are connected to the lifting plate 14. The drive transmission assembly 12 synchronously drives the two lead screw assemblies 13 to move the lifting plate 14 in the longitudinal direction, thereby realizing the lifting operation of the lifting plate 14.

[0031] Please see Figures 1-3As shown, in this embodiment, the support assembly 11 includes a mounting bracket 111, a fixing plate 112, a lower limit sensor 113, and an upper limit sensor 114. The mounting bracket 111 serves as the main support and is fixedly installed in the AGV vehicle body. The fixing plate 112 is horizontally fixed on the mounting bracket 111, and the drive transmission assembly 12 and two lead screw assemblies 13 are respectively installed through the fixing plate 112. The lower limit sensor 113 and the upper limit sensor 114 are respectively fixed on the mounting bracket 111, and both of them perform sensing and limiting operations on the vertical displacement of the lifting plate 14. Specifically, multiple mounting holes 1121 are provided through the fixing plate 112, and the drive transmission assembly 12 and the two lead screw assemblies 13 are respectively installed through the corresponding mounting holes 1121 on the fixing plate 112. Both the lower limit sensor 113 and the upper limit sensor 114 are photoelectric switches.

[0032] Please see Figures 1-4 As shown, in this embodiment, the drive transmission assembly 12 includes a drive motor 121, a drive gear 122, and two transmission gear structures 123. The drive motor 121 is mounted through a corresponding mounting hole 1121 on the fixed plate 112 and is electrically connected to the AGV body, and it can rotate in both directions. The drive gear 122 is fixedly mounted on the output shaft of the drive motor 121, and the drive motor 121 drives the drive gear 122 to rotate. The two transmission gear structures 123 are rotatably mounted on the fixed plate 112 and are respectively meshed with the drive gear 122 for transmission. The two transmission gear structures 123 are respectively meshed with the corresponding lead screw assembly 13 for transmission. The drive motor 121 synchronously drives the two transmission gear structures 123 to rotate through the drive gear 122, and the two transmission gear structures 123 synchronously drive the corresponding lead screw assembly 13 to rotate. Specifically, the transmission gear structure 123 includes a first bearing 1231, a rotating shaft 1232, and a transmission gear body 1233; the first bearing 1231 is fixedly installed in the corresponding mounting hole 1121 on the fixed plate 112; one end of the rotating shaft 1232 is rotatably installed in the first bearing 1231, and the other end is fixedly connected to the transmission gear body 1233; the transmission gear body 1233 is meshed and transmitted with the drive gear 122 and the corresponding lead screw assembly 13 respectively.

[0033] Please see Figure 1 , Figure 2 , Figure 3 and Figure 5As shown, in this embodiment, the lead screw assembly 13 includes a driven gear 131, a second bearing 132, a lead screw body 133, and a bushing 134. The driven gear 131 meshes with and is connected to the corresponding transmission gear body 1233. The second bearing 132 is fixedly installed in the corresponding mounting hole 1121 on the fixed plate 112. The bushing 134 is fixedly installed through the lifting plate 14. The lead screw body 133 movably passes through the second bearing 132 and is fixedly connected to the driven gear 131. It is connected to the bushing 134 in a transmission manner. The driven gear 131 drives the lead screw body 133 to rotate, thereby driving the bushing 134 to move on the lead screw body 133. Specifically, a fastening nut 1311 is provided at the connection between the driven gear 131 and the lead screw body 133. The fastening effect of the fastening nut 1311 prevents the driven gear 131 and the lead screw body 133 from disengaging. The lead screw body 133 is a ball screw. The inner wall of the bushing 134 is provided with an internal thread, which engages with the external thread on the lead screw body 133, thereby enabling the bushing 134 to move on the lead screw body 133.

[0034] Please see Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, in this embodiment, two bushing mounting holes 141 are provided through the lifting plate 14, and two bushings 134 are respectively fixedly installed in the corresponding bushing mounting holes 141. A sensing plate 142 is also fixedly installed on the lifting plate 14. The sensing plate 142 can perform sensing operations with the lower limit sensor 113 and the upper limit sensor 114 respectively, and transmit signals to the drive motor 121 to stop rotating, thereby limiting the up and down movement of the lifting plate 14.

[0035] The present invention provides a hidden traction AGV trolley including any of the above-mentioned rear lifting mechanism 10, which lifts the material cart mounted on the hidden traction AGV trolley.

[0036] It should be noted that the specific working process of the rear lifting mechanism and the lurking AGV trolley of this utility model is as follows: When the lifting plate 14 needs to be raised, the drive motor 121 rotates forward, which synchronously drives the two transmission gear structures 123 to rotate through the drive gear 122. The two transmission gear structures 123 synchronously drive the corresponding lead screw assembly 13 to rotate. The two lead screw assemblies 13 drive the lifting plate 14 to move upward. When the sensing plate 142 on the lifting plate 14 moves into the upper limit sensor 114, the drive motor 121... When rotation stops, the lifting plate 14 completes the rising operation. When the lifting plate 14 needs to be lowered, the drive motor 121 reverses, which synchronously drives the two transmission gear structures 123 to rotate in the opposite direction through the drive gear 122. The two transmission gear structures 123 synchronously drive the corresponding lead screw assembly 13 to rotate in the opposite direction. The two lead screw assemblies 13 drive the lifting plate 14 to move downward. When the sensing plate 142 on the lifting plate 14 moves into the lower limit sensor 113, the drive motor 121 stops rotating, and the lifting plate 14 completes the lowering operation.

[0037] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0038] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A vehicle tail-lifting mechanism, characterized by comprising: The utility model provides a vehicle tail jacking mechanism, which comprises a support assembly, a driving transmission assembly arranged on the support assembly, two screw rod assemblies each rotatably arranged on the support assembly and each in transmission connection with the driving transmission assembly, and a jacking plate in transmission connection with the two screw rod assemblies, wherein the driving transmission assembly is capable of driving the two screw rod assemblies to drive the jacking plate to move in a longitudinal direction. The driving transmission assembly comprises a driving motor arranged on the support assembly, the driving motor being capable of forward and reverse rotation, a driving gear fixedly arranged on an output shaft of the driving motor, and two transmission gear structures each rotatably arranged on a fixed plate and in meshing transmission connection with the driving gear, and each in meshing transmission connection with a corresponding screw rod assembly. The transmission gear structure comprises a first bearing fixedly arranged on the support assembly, a rotating shaft rotatably arranged in the first bearing, and a transmission gear body fixedly connected with the rotating shaft and in meshing transmission connection with the driving gear and the corresponding screw rod assembly. The support assembly comprises a mounting bracket and a fixed plate fixedly mounted on the mounting bracket, and a lower limit position sensor and an upper limit position sensor each fixedly arranged on the mounting bracket. The fixed plate is provided with a plurality of mounting holes, and the driving transmission assembly and the two screw rod assemblies are each arranged on the fixed plate through a corresponding mounting hole. The screw rod assembly comprises a driven gear in meshing transmission connection with the corresponding transmission gear body, a second bearing fixedly arranged on the fixed plate in the corresponding mounting hole, a shaft sleeve fixedly arranged on the jacking plate, and a screw rod body movably arranged through the second bearing and fixedly connected with the driven gear, the screw rod body being in transmission connection with the shaft sleeve.

2. A vehicle lift according to claim 1, wherein The connecting part of the driven gear and the screw rod body is provided with a fastening nut.

3. A vehicle lift according to claim 1, wherein The inner wall of the shaft sleeve is provided with an internal thread in threaded connection with an external thread on the screw rod body.

4. A vehicle lift according to claim 3, wherein The jacking plate is provided with two shaft sleeve mounting holes, and the two shaft sleeves are each fixedly arranged in a corresponding shaft sleeve mounting hole.

5. A vehicle lift according to claim 4, wherein The jacking plate is fixedly provided with an inductive sheet capable of being in inductive operation with the lower limit position sensor and the upper limit position sensor.

6. A vehicle lift according to claim 5 wherein, The utility model provides a vehicle tail jacking mechanism.

7. A vehicle lift according to claim 5 wherein, ​ 8. A vehicle lift according to claim 5 wherein, ​ 9. A vehicle lift according to claim 3 wherein, ​ 10. A latent tow AGV cart, characterized by, ​

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