Heavy load single motor double extension position telescopic fork
By using a single-motor driven roller chain assembly and gearbox design, the problems of large size, light load capacity, and short stroke of existing double-extension telescopic forks are solved, enabling the loading and unloading of heavy-duty and long-stroke goods. The structure is simple and easy to maintain.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MIYAS LOGISTICS EQUIP (KUNSHAN) CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-06-30
AI Technical Summary
Existing dual-extension telescopic forks mostly use dual-motor drive, which is bulky and complex in structure, making them unsuitable for confined spaces. In addition, single-motor driven telescopic forks have a lighter load capacity and shorter stroke, which cannot meet the needs of picking up and placing heavy goods.
It adopts a single motor drive and uses a roller chain assembly and gearbox assembly design to achieve synchronous extension and retraction of the dual-extension telescopic fork, simplifying the structure and increasing load capacity and stroke.
It achieves heavy-load capacity and long-distance cargo loading and unloading, with a simple structure and easy maintenance.
Smart Images
Figure CN224430102U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of logistics and warehousing equipment, and more precisely to a heavy-duty single-motor double-extension telescopic fork. Background Technology
[0002] With the continuous development of the logistics and warehousing industry, freight volume and warehousing demand are also increasing, leading to a rise in automated storage and retrieval systems (AS / RS) and automated logistics centers. Telescopic forks are fundamental handling equipment in AS / RS, and their performance directly affects the efficiency of picking and placing goods within the warehouse.
[0003] Due to the high storage density and close proximity of racks in automated storage and retrieval systems (AS / RS), double-extension telescopic forks are commonly used in conjunction with stacker cranes to retrieve and place goods on the racks on both sides. Existing double-extension telescopic forks typically use dual-motor drives; however, this type of double-extension telescopic fork generally has a large volume and complex structure, making it unsuitable for confined spaces and resulting in high maintenance costs. Currently, single-motor driven double-extension telescopic forks are mostly lightweight and have a short stroke, capable only of handling lighter goods in AS / RS, unable to handle heavier goods, and ill-suited for complex storage scenarios.
[0004] In summary, there is a need in the field for a telescopic fork that is driven by a single motor, capable of picking up and placing heavy goods, and has a longer travel distance. Utility Model Content
[0005] In view of this, the purpose of this utility model is to provide a heavy-duty single-motor double-extension telescopic fork, which is driven by a single motor to perform heavy-duty, long-stroke cargo loading and unloading operations.
[0006] To achieve the above objectives, this utility model provides a heavy-duty single-motor double-extension telescopic fork, including a drive motor, a roller chain assembly, and two fork bodies. Gearbox assemblies are respectively installed at the bottom of the fork bodies. The gearbox assemblies are connected to the gear assembly inside the fork body. The two gearbox assemblies are connected by a drive shaft. The drive motor is connected to one of the gearbox assemblies through the roller chain assembly.
[0007] Preferably, the fork body includes a lower fork, a first middle fork, a second middle fork, and an upper fork that are connected in sequence, and the gear assembly is installed inside the lower fork.
[0008] Preferably, a first rack is mounted on the bottom of the first fork, and the first rack is connected to the gear assembly for transmission.
[0009] Preferably, the second middle fork and the upper fork are connected by a chain drive.
[0010] Preferably, the gear assembly includes a lower fork rack, a first roller chain that is driven and connected to the lower fork rack is mounted on the first middle fork, and a second rack that is driven and connected to the first roller chain is mounted on the second middle fork.
[0011] Preferably, the gear assembly includes a plurality of gears connected in sequence, the gears being connected to the mounting plate and the lower fork rack via a shaft assembly, and the mounting plate being fixedly connected to the lower fork.
[0012] Preferably, the shaft assembly includes a hollow shaft, a set of bushings and a retaining ring for the shaft, the hollow shaft being rotatably inserted through the middle of the gear, the two ends of the hollow shaft passing through the mounting plate and the lower fork rack respectively, and the part of the hollow shaft protruding through the gear being fitted with the bushings and the retaining ring for the shaft in sequence.
[0013] Preferably, the roller chain assembly is mounted in conjunction with the lower fork, and the drive motor is fixedly connected to the roller chain assembly; the roller chain assembly has a sprocket inside, and the sprocket is connected to the gear assembly for transmission.
[0014] Compared with the prior art, the advantages of the heavy-duty single-motor double-extension telescopic fork disclosed in this utility model are: the heavy-duty single-motor double-extension telescopic fork can carry heavier goods, has a longer stroke, and has a simpler structure, making it easier to maintain. Attached Figure Description
[0015] 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.
[0016] like Figure 1 The diagram shown is a structural schematic of a heavy-duty single-motor double-extension telescopic fork according to this application.
[0017] like Figure 2 The diagram shown is a structural schematic of the gear assembly of a heavy-duty single-motor double-extension telescopic fork according to this application. Detailed Implementation
[0018] 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.
[0019] like Figure 1 As shown, this application discloses a heavy-duty single-motor double-extension telescopic fork, comprising a drive motor 4, a roller chain assembly 5, and two fork bodies. Gearbox assemblies 6 are respectively mounted on the bottom of the fork bodies. The gearbox assemblies 6 are connected to gear assemblies 2 inside the fork bodies, and the two gearbox assemblies 6 are connected by a drive shaft 7. The drive motor 4 is connected to one of the gearbox assemblies 6 via the roller chain assembly 5. When the drive motor 4 is working, it drives one gearbox assembly 6 to rotate via the roller chain assembly 5, and drives the other gearbox assembly 6 to rotate via the drive shaft 7. The gearbox assembly 6 drives the gear assembly 2 to rotate, causing the two fork bodies to extend and retract synchronously. This heavy-duty single-motor double-extension telescopic fork can handle heavier goods, has a longer stroke, and has a relatively simple structure, making it easy to maintain.
[0020] The fork body includes a lower fork 11, a first middle fork 12, a second middle fork 13, and an upper fork 14, which are connected in sequence. A gear assembly 2 is installed inside the lower fork 11. A first rack 121 is mounted on the bottom of the first middle fork 12, and the first rack 121 is connected to the gear assembly 2. The gear assembly 2 drives the first middle fork 12 to move through the first rack 121. The gear assembly 2 includes a lower fork rack 22. A first roller chain 122, which is connected to the lower fork rack 22, is mounted on the first middle fork 12. A second rack 131, which is connected to the first roller chain 122, is mounted on the second middle fork 13. The first roller chain 122 drives the second middle fork 12 to move through the second rack 131. The second middle fork 13 and the upper fork 14 are connected by a chain drive.
[0021] The roller chain assembly 5 is installed together with the lower fork 11, and the drive motor 4 is fixedly connected to the roller chain assembly 5. The roller chain assembly 5 has a sprocket 51 inside, which is connected to the gear assembly 2 for transmission. The sprocket 51 is driven to rotate by the drive motor 4.
[0022] See Figure 2 The gear assembly 2 includes several gears 21 connected in sequence. The gears 21 are connected to the mounting plate 20 and the lower fork rack 22 via a shaft assembly. The mounting plate 20 is fixedly connected to the lower fork 11. The shaft assembly includes a hollow shaft 231, a set of bushings 232, and a shaft retainer 233. The hollow shaft 231 is rotatably inserted through the middle of the gear 21. Both ends of the hollow shaft 231 pass through the mounting plate 20 and the lower fork rack 22, respectively, and the part of the hollow shaft 231 that passes through is fitted with bushings 232 and shaft retainers 233 in sequence.
[0023] 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 heavy duty single motor double reach telescopic fork, characterized in that, The device includes a drive motor, a roller chain assembly, and two forks. Gearbox assemblies are mounted on the bottom of each fork and are connected to gear assemblies inside the forks. The two gearbox assemblies are connected by a drive shaft, and the drive motor is connected to one of the gearbox assemblies via the roller chain assembly.
2. The heavy duty single motor double reach telescopic fork as claimed in claim 1, wherein, The fork body includes a lower fork, a first middle fork, a second middle fork, and an upper fork that are connected in sequence for transmission, and the gear assembly is installed inside the lower fork.
3. The heavy duty single motor double reach telescopic fork as claimed in claim 2, wherein, A first rack is mounted on the bottom of the first fork, and the first rack is connected to the gear assembly for transmission.
4. The heavy duty single motor double reach telescopic fork as claimed in claim 2, wherein, The second middle fork and the upper fork are connected by a chain drive.
5. The heavy duty single motor double reach telescopic fork as claimed in claim 2, wherein, The gear assembly includes a lower fork rack, a first roller chain that is driven and connected to the lower fork rack is mounted on the first middle fork, and a second rack that is driven and connected to the first roller chain is mounted on the second middle fork.
6. The heavy duty single motor double reach telescopic fork as claimed in claim 5, wherein, The gear assembly includes a plurality of gears that are connected in sequence. The gears are connected to the mounting plate and the lower fork rack via a shaft assembly. The mounting plate is fixedly connected to the lower fork.
7. The heavy duty single motor double reach telescopic fork as claimed in claim 6, wherein, The shaft assembly includes a hollow shaft, a set of bushings and a retaining ring for the shaft. The hollow shaft is rotatably inserted through the middle of the gear. Both ends of the hollow shaft pass through the mounting plate and the lower fork rack, respectively, and the part of the hollow shaft that passes through is sequentially fitted with the bushings and the retaining ring for the shaft.
8. The heavy duty single motor double reach telescopic fork as claimed in claim 2, wherein, The roller chain assembly is mounted in conjunction with the lower fork, and the drive motor is fixedly connected to the roller chain assembly; the roller chain assembly has a sprocket inside, and the sprocket is connected to the gear assembly for transmission.