Single-stretching-position telescopic fork

Abstract

The utility model provides a single stretching position telescopic fork which comprises two pallet fork assemblies, a driving motor and a transmission assembly, the two pallet fork assemblies are arranged in parallel in a coplanar mode, the transmission assembly is in transmission connection with the two pallet fork assemblies at the same time, and the driving motor is in transmission connection with the transmission assembly. The driving motor drives the two pallet fork assemblies to stretch out and draw back synchronously through the transmission assembly. The single-stretching-position telescopic fork is more compact in structure, can meet the strength and speed requirements of cargo transportation, and is lower in space occupancy rate on the premise of ensuring the transportation performance.

Description

Technical Field

[0001] This utility model relates to the technical field of automated logistics transportation, and more precisely to a single-extension telescopic fork. Background Technology

[0002] With the continuous development of automated logistics and transportation technology, the popularity of automated storage and retrieval systems (AS / RS) is increasing. Telescopic forks are commonly used cargo transfer devices in AS / RS. Besides warehousing, telescopic forks are also widely used in ports, railway transportation, automobile manufacturing, steel smelting, chemical industry, construction, and other fields. Their performance and stability are crucial to the overall operation of these applications.

[0003] Existing telescopic forks generally use a bottom-lifting mechanism, where the forks extend into the gaps at the bottom of the goods and lift them upwards before transporting them. Other existing technologies employ a hook-and-pull type of telescopic fork, where the forks act on the side of the goods, transferring them to the load-bearing structure before transport. Both of these types of telescopic forks can accommodate most standard-sized goods, but they cannot accommodate larger goods without increasing the structural dimensions. Therefore, current technology typically requires large-sized telescopic forks capable of handling large-volume goods, which occupies additional storage space and cannot meet the needs of high-density goods handling.

[0004] In summary, there is a need in this field for a telescopic fork that is small in size but can meet the transportation function of large-volume goods, in order to reduce logistics costs and reduce the space occupied by storage. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a single-extension telescopic fork that uses a single drive and transmission component to drive two fork components to operate synchronously. While meeting the performance requirements of the fork, the overall size is reduced, thereby reducing space occupation and improving the retrieval and placement efficiency when storing high-density goods.

[0006] To achieve the above objectives, this utility model provides a single-extension telescopic fork, including two fork assemblies, a drive motor, and a transmission assembly. The two fork assemblies are arranged in parallel and coplanar arrangement. The transmission assembly is simultaneously connected to both fork assemblies. The drive motor is connected to the transmission assembly, and the drive motor drives the two fork assemblies to extend and retract synchronously through the transmission assembly.

[0007] Preferably, the fork assembly includes an upper fork assembly, a middle fork assembly, and a lower fork assembly that are slidably connected in sequence, the transmission assembly is pulsatorically connected to the lower fork assembly, and the upper fork assembly, the middle fork assembly, and the lower fork assembly are all pulsatorically connected to the tensioner chain assembly.

[0008] Preferably, the upper fork assembly and the middle fork assembly are slidably connected via a guide wheel groove on the outer side of the middle fork assembly, and the middle fork assembly and the lower fork assembly are slidably connected via a guide pulley groove on the inner side of the middle fork assembly.

[0009] Preferably, the transmission assembly includes a drive shaft, a roller chain assembly, a universal joint assembly, a gearbox assembly, and a motor bracket. The universal joint assembly is connected to both ends of the drive shaft, and one side of the universal joint assembly is connected to the gearbox assembly, a switch assembly, and an encoder assembly, while the other side of the universal joint assembly is connected to the gearbox assembly. The motor bracket is connected to the gearbox assembly, and the drive motor is mounted in conjunction with the motor bracket. The output shaft of the drive motor is connected to the roller chain assembly, and the roller chain assembly is drive-connected to the gearbox assembly.

[0010] Preferably, the transmission assembly includes a sprocket cover that covers the outer side of the roller chain assembly.

[0011] Preferably, the upper fork assembly includes an upper fork, a plurality of guide wheels and a plurality of guide blocks, with the plurality of guide wheels and the plurality of guide blocks being mounted together on the inner sides of the upper fork, and the plurality of guide wheels and the plurality of guide blocks being slidably mounted in the guide wheel grooves on the outer side of the middle fork assembly.

[0012] Preferably, the center fork assembly includes a center fork, a sprocket, and a rack. The center fork has guide wheel grooves on both outer sides and a guide wheel groove in the middle. The sprocket is mounted on the outer side of the center fork, and the rack is located in the guide wheel groove in the middle of the center fork.

[0013] Preferably, the tensioner chain assembly passes through the sprocket, and the two ends of the tensioner chain assembly are respectively connected to the upper fork assembly and the lower fork assembly.

[0014] Preferably, the lower fork assembly includes a lower fork, a plurality of lower fork guide wheels, a plurality of lower fork guide blocks, a limiting screw, a side clamp, a gear, and a mounting base plate. The plurality of lower fork guide wheels and the plurality of lower fork guide blocks are mounted on the sides of the lower fork, and all of the plurality of lower fork guide wheels and the plurality of lower fork guide blocks are slidably embedded in the guide wheel grooves in the middle of the fork. The side clamps are respectively mounted on the two ends of the lower fork, and the side clamps are connected to the lower fork via the limiting screws. The gear is rotatably mounted on the side of the lower fork, and the gear meshes with the rack. The transmission assembly is connected to the mounting base plate. The gearbox assembly is connected to the gear transmission.

[0015] Compared with the prior art, the advantages of the single-extension telescopic fork disclosed in this utility model are: the single-extension telescopic fork structure is more compact and can meet the strength and speed requirements of cargo transportation, while having a lower space occupancy rate under the premise of ensuring transportation performance. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] like Figure 1 The diagram shown is a structural schematic of a single-extension telescopic fork according to this utility model.

[0018] like Figure 2 The diagram shown is a structural schematic of the connection between the transmission assembly, switch assembly, and encoder assembly of a single-extension telescopic fork according to this utility model.

[0019] like Figure 3 The diagram shown is a structural schematic of the upper fork assembly of a single-extension telescopic fork according to this utility model.

[0020] like Figure 4 The diagram shown is a structural schematic of the middle fork assembly of a single-extension telescopic fork according to this utility model.

[0021] like Figure 5 The diagram shown is a structural schematic of the lower fork assembly of a single-extension telescopic fork according to this utility model.

[0022] like Figure 6 The diagram shown is a structural schematic of the transmission assembly of a single-extension telescopic fork according to this utility model. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figure 1 and Figure 2As shown, this application discloses a single-extension telescopic fork comprising two fork assemblies, a drive motor 4, and a transmission assembly 5. The two fork assemblies are arranged coplanarly and parallel. The transmission assembly 5 is simultaneously connected to both fork assemblies, and the drive motor 4 is connected to the transmission assembly 5. The drive motor 4 drives the two fork assemblies to extend and retract synchronously via the transmission assembly 5. This single-extension telescopic fork utilizes a single drive motor 4 and a single transmission assembly 5 to drive the two fork assemblies synchronously, resulting in a more compact structure.

[0025] Specifically, the fork assembly includes an upper fork assembly 1, a middle fork assembly 2, and a lower fork assembly 3, which are slidably connected in sequence. A transmission assembly 5 is driven by the lower fork assembly 3, and all three assemblies are driven by a tensioner chain assembly 6. The lower fork assembly 3 is driven by the transmission assembly 5 and, in turn, drives the upper fork assembly 1 and the middle fork assembly 2 to move via the tensioner chain assembly 6. Specifically, the upper fork assembly 1 and the middle fork assembly 2 are slidably connected via a guide wheel groove on the outer side of the middle fork assembly 2, and the middle fork assembly 2 and the lower fork assembly are slidably connected via a guide pulley groove on the inner side of the middle fork assembly 2.

[0026] See Figure 2 and Figure 6 The transmission assembly 5 includes a drive shaft 50, a roller chain assembly 51, a universal joint assembly 52, a gearbox assembly 9, a motor bracket 53, and a sprocket cover 54. The drive shaft 50 is connected to the universal joint assembly 52 at both ends. One side of the universal joint assembly 52 is connected to the gearbox assembly 9, the switch assembly 7, and the encoder assembly 8, while the other side is also connected to the gearbox assembly 9. The motor bracket 53 is connected to the gearbox assembly 9. The drive motor 4 is mounted to the motor bracket 53, and its output shaft is connected to the roller chain assembly 51. The roller chain assembly 51 is connected to the gearbox assembly 9 in a transmission connection. The sprocket cover 54 covers the outer part of the roller chain assembly 51 to prevent interference or damage during operation. The switch assembly 7 detects whether the upper fork assembly 1 has returned to center, and the encoder assembly 8 controls the extension of the fork assembly.

[0027] See Figure 3 The upper fork assembly 1 includes an upper fork 11, a plurality of guide wheels 12 and a plurality of guide blocks 13. The plurality of guide wheels 12 and the plurality of guide blocks 13 are mounted together on the inner two sides of the upper fork 11. The plurality of guide wheels 12 and the plurality of guide blocks 13 are slidably mounted in the guide wheel grooves on the outer side of the middle fork assembly 2.

[0028] See Figure 4The center fork assembly 2 includes a center fork 21, a freewheel 22, and a rack 23. The center fork 21 has guide wheel grooves on both its outer sides and a guide wheel groove in its center. The freewheel 22 is mounted on the outer side of the center fork 21, and the rack 23 is located in the guide wheel groove in the center of the center fork. The upper fork assembly 1 is connected to the guide wheel grooves on the sides of the center fork 21 via several guide wheels 12 and several guide blocks 13. The lower fork assembly 3 is embedded in the guide wheel groove in the center of the center fork 21, and is drively connected to the rack 23. The tensioner chain assembly 6 passes through the freewheel 22, and its two ends are connected to the upper fork assembly 1 and the lower fork assembly 3, respectively.

[0029] See Figure 5 The lower fork assembly 3 includes a lower fork 31, several lower fork guide wheels 32, several lower fork guide blocks 33, a limiting screw 34, side clamps 35, a gear 36, and a mounting base plate 37. The lower fork guide wheels 32 and lower fork guide blocks 33 are mounted on the sides of the lower fork 31, and all of them are slidably embedded in the guide wheel grooves in the middle of the center fork 21. Side clamps 35 are mounted on both ends of the lower fork 31, limiting the travel of the center fork assembly 2. The side clamps 35 are connected to the lower fork 31 via limiting screws 34. The gear 36 is rotatably mounted on the side of the lower fork 31 and meshes with the rack 23. The transmission assembly 5 is connected to the mounting base plate 37. The gearbox assembly 9 is connected to the gear 36 for transmission.

[0030] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A single-extension telescopic fork, characterized in that, The device includes two fork assemblies, a drive motor, and a transmission assembly. The two fork assemblies are arranged in parallel and coplanar arrangement. The transmission assembly is simultaneously connected to both fork assemblies. The drive motor is connected to the transmission assembly, and the drive motor drives the two fork assemblies to extend and retract synchronously via the transmission assembly. Each fork assembly includes an upper fork assembly, a middle fork assembly, and a lower fork assembly that are slidably connected in sequence. The transmission assembly is connected to the lower fork assembly, and the upper fork assembly, the middle fork assembly, and the lower fork assembly are all connected to the tensioner chain assembly.

2. The single-extension telescopic fork as described in claim 1, characterized in that, The upper fork assembly and the middle fork assembly are slidably connected via a guide wheel groove on the outer side of the middle fork assembly, and the middle fork assembly and the lower fork assembly are slidably connected via a guide wheel groove on the inner side of the middle fork assembly.

3. The single-extension telescopic fork as described in claim 2, characterized in that, The transmission assembly includes a drive shaft, a roller chain assembly, a universal joint assembly, a gearbox assembly, and a motor bracket. The universal joint assembly is connected to both ends of the drive shaft. One side of the universal joint assembly is connected to the gearbox assembly, a switch assembly, and an encoder assembly, while the other side of the universal joint assembly is connected to the gearbox assembly. The motor bracket is connected to the gearbox assembly. The drive motor is mounted in conjunction with the motor bracket. The output shaft of the drive motor is connected to the roller chain assembly. The roller chain assembly and the gearbox assembly are connected in a transmission connection.

4. The single-extension telescopic fork as described in claim 3, characterized in that, The transmission assembly includes a sprocket cover that covers the outer side of the roller chain assembly.

5. The single-extension telescopic fork as described in claim 3, characterized in that, The upper fork assembly includes an upper fork, several guide wheels, and several guide blocks. Several guide wheels and several guide blocks are mounted on the inner sides of the upper fork. Several guide wheels and several guide blocks are slidably mounted in guide wheel grooves on the outer side of the middle fork assembly.

6. The single-extension telescopic fork as described in claim 5, characterized in that, The center fork assembly includes a center fork, a sprocket, and a rack. The center fork has guide wheel grooves on both outer sides and a guide wheel groove in the middle. The sprocket is mounted on the outer side of the center fork, and the rack is located in the guide wheel groove in the middle of the center fork.

7. The single-extension telescopic fork as described in claim 6, characterized in that, The tensioner chain assembly passes through the sprocket, and its two ends are respectively connected to the upper fork assembly and the lower fork assembly.

8. The single-extension telescopic fork as described in claim 6, characterized in that, The lower fork assembly includes a lower fork, several lower fork guide wheels, several lower fork guide blocks, a limiting screw, side clamps, a gear, and a mounting base plate. The lower fork guide wheels and lower fork guide blocks are mounted on the sides of the lower fork, and all of them are slidably embedded in guide wheel grooves in the middle of the fork. Side clamps are mounted on both ends of the lower fork, and these clamps are connected to the lower fork via the limiting screws. The gear is rotatably mounted on the side of the lower fork and meshes with the rack. The transmission assembly is connected to the mounting base plate. The gearbox assembly is connected to the gear drive.

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