Chain tensioning device for pallet fork

Abstract

The chain tensioning device for the pallet fork comprises a bottom plate, an adjustable rib plate, a chain wheel and an adjusting assembly, the bottom plate is fixedly connected with an equipment body, and the adjustable rib plate is installed on the bottom plate; the chain wheel is rotatably mounted on the adjustable rib plate, and the chain wheel is meshed with a chain and extrudes the chain; the adjusting assembly is in transmission connection with the adjustable rib plate, the adjustable rib plate is controlled by the adjusting assembly to drive the chain wheel to change the extrusion force on the chain, and the tensioning degree of the chain is adjusted. The chain tensioning device for the pallet fork is small in size and more suitable for use scenes with limited space; the chain tensioning device for the pallet fork is convenient and fast to adjust, and can adapt to different types of chains.

Description

Technical Field

[0001] The utility model relates to the technical field related to logistics and warehousing, and more precisely to a chain tensioning device for a cargo fork. Background Art

[0002] Telescopic forks are commonly used equipment in the field of logistics and warehousing. Using telescopic forks can realize the functions of carrying and picking up and placing a variety of goods. Chain-type push-pull forks are a relatively commonly used telescopic fork. Chain-type push-pull forks use chains as transmission structures to achieve the extension and retraction of the push-pull forks. The motor drives the sprocket to rotate, the sprocket engages with the chain, and the chain engages with the gear of the push-pull fork. After long-term use, the chain will increase in length, and continued use will cause frequent tooth jumping. In order to solve the problem of tooth jumping after long-term use of the chain, a chain tensioning device is generally required in this field. Existing chain tensioning devices are generally large in size and not convenient to adjust, and cannot be easily adapted to different types of chains.

[0003] In summary, there is a need in the art to improve the existing chain tensioning device for forks to reduce its volume and improve the convenience of adjustment. Utility Model Content

[0004] In view of this, the purpose of the present invention is to provide a chain tensioning device for a fork, including an adjustable rib plate, on which a sprocket docked with the chain is installed. The adjustable rib plate is also combined with an installation adjustment component to adjust the tension of the sprocket on the chain.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a chain tensioning device for a fork, comprising a base plate, an adjustable rib plate, a sprocket and an adjustment assembly, wherein the base plate is fixedly connected to the equipment body, and the adjustable rib plate is mounted on the base plate; the sprocket is rotatably mounted on the adjustable rib plate, and the sprocket meshes with the chain and squeezes the chain; the adjustment assembly is transmission-connected to the adjustable rib plate, and the adjustable rib plate is controlled by the adjustment assembly to drive the sprocket to change the squeezing force on the chain, thereby adjusting the tension of the chain.

[0006] Preferably, one end of the adjustable rib is connected to the base plate through an adjustable bolt, and the adjustable rib and the base plate have two connection states: fixed connection and rotatable connection. The connection state of the adjustable rib and the base plate can be switched by adjusting the adjustable bolt.

[0007] Preferably, the sprocket is rotatably connected to the adjustable rib via a bearing and bolts.

[0008] Preferably, the bottom plate has a guide plate connected to the adjustable rib plate, the adjustable rib plate has a guide block connected to the guide plate, and the rotation trajectory of the adjustable rib plate is limited by the guide plate.

[0009] Preferably, the adjustment assembly includes a bolt shaft, a rotating flange and a spring, one end of the bolt shaft is rotatably connected to the end of the adjustable rib through a hinge, a spring is sleeved on the bolt shaft, the rotating flange is threadedly connected to the bolt shaft, and the spring is located between the rotating flange and the hinge.

[0010] Compared with the prior art, the advantages of the chain tensioning device for a cargo fork disclosed in the utility model are: the chain tensioning device for a cargo fork is smaller in size and is more suitable for use in scenarios with tight space; the chain tensioning device for a cargo fork is easy and quick to adjust and can adapt to different types of chains. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0012] like Figure 1 Shown is a structural schematic diagram of a chain tensioning device for a fork of the utility model. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0014] like Figure 1As shown, the present application discloses a chain tensioning device for a fork, comprising a base plate 1, an adjustable rib plate 2, a sprocket 3, and an adjustment assembly. The base plate 1 is fixedly connected to the device body, and the adjustable rib plate 2 is mounted on the base plate 1. The sprocket 3 is rotatably mounted on the adjustable rib plate 2, and the sprocket 3 engages with and squeezes the chain 6. The adjustment assembly is in transmission connection with the adjustable rib plate 2. The adjustable rib plate 2 is controlled by the adjustment assembly to drive the sprocket 3 to change the squeezing force on the chain 6, thereby adjusting the tension of the chain 6. The adjustment assembly can also maintain continuous tension on the chain 6 by the sprocket 3, reducing chain wear and preventing chain tooth skipping, and can adapt to chains of different specifications.

[0015] Specifically, one end of the adjustable rib 2 is connected to the base plate 1 via an adjustable bolt 21. The adjustable rib 2 and the base plate 1 can be connected in two states: fixed and rotatable. The connection state of the adjustable rib 2 and the base plate 1 can be switched by adjusting the adjustable bolt 21. The sprocket 3 is rotatably connected to the adjustable rib 2 via a bearing 22 and a bolt.

[0016] Preferably, the base plate 1 has a guide plate 11 docked with the adjustable rib plate 2, and the adjustable rib plate 2 has a guide block docked with the guide plate 11. The rotation trajectory of the adjustable rib plate 2 is limited by the guide plate 11, thereby improving the adjustment accuracy and the overall stability of the device.

[0017] The adjustment assembly includes a bolt shaft 4, a rotating flange 5, and a spring 41. One end of the bolt shaft 4 is rotatably connected to the end of the adjustable rib 2 via a hinge 23. The spring 41 is sleeved around the bolt shaft 4, and the rotating flange 5 is threadedly connected to the bolt shaft 4, with the spring 41 positioned between the rotating flange 5 and the hinge 23. The rotating flange 5 is fixedly connected to the device body. Rotating the bolt shaft 4 changes the force applied by the spring 41 to the adjustable rib 2, adjusting the tension. This allows for quick and easy adjustment of the adjustment assembly, providing improved adaptability.

[0018] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one 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 limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A chain tensioning device for a fork, characterized in that: It includes a base plate, an adjustable rib plate, a sprocket and an adjustment component. The base plate is fixedly connected to the equipment body, and the adjustable rib plate is installed on the base plate; the sprocket is rotatably installed on the adjustable rib plate, and the sprocket meshes with the chain and squeezes the chain; the adjustment component is transmission-connected to the adjustable rib plate, and the adjustable rib plate is controlled by the adjustment component to drive the sprocket to change the squeezing force on the chain, thereby adjusting the tension of the chain.

2. The chain tensioner for a fork according to claim 1, characterized in that: One end of the adjustable rib is connected to the base plate through an adjustable bolt. The adjustable rib and the base plate have two connection states: fixed connection and rotatable connection. The connection state of the adjustable rib and the base plate can be switched by the adjustable bolt.

3. The chain tensioner for a fork according to claim 1, wherein: The sprocket is rotatably connected to the adjustable rib via a bearing and bolts.

4. The chain tensioner for a fork according to claim 1, wherein: The bottom plate is provided with a guide plate connected to the adjustable rib plate, and the adjustable rib plate is provided with a guide block connected to the guide plate. The rotation track of the adjustable rib plate is limited by the guide plate.

5. The chain tensioner for a fork according to claim 1, wherein: The adjustment assembly includes a bolt shaft, a rotating flange and a spring. One end of the bolt shaft is rotatably connected to the end of the adjustable rib via a hinge. A spring is sleeved on the bolt shaft. The rotating flange is threadedly connected to the bolt shaft. The spring is located between the rotating flange and the hinge.

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