Gear box speed reducer

By installing a double-layer metal filter sleeve structure on the flange of the gearbox reducer, the problem of wear of the sealing structure in dusty environments is solved, thereby improving sealing performance and extending service life.

CN223894949UActive Publication Date: 2026-02-10ZHEJIANG GEWEITE TRANSMISSION TECH CO LTD
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Patent Information

Application Number
CN202520879899.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-30
Publication Date
2026-02-10
Estimated Expiration
2035-04-30

AI Technical Summary

Technical Problem

The sealing structure of existing speed reducers is prone to wear in dusty environments, leading to reduced transmission accuracy.

Method used

A double-layer metal filter sleeve structure is installed on the flange of the gearbox reducer. Through the cooperation of the guide tube and the guide column, a dustproof structure is formed to prevent dust from entering the sealing structure.

Benefits of technology

It improves sealing performance and service life, protects the sealing structure, and prevents wear.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a gearbox speed reducer, and belongs to the technical field of transmission devices. The gear box speed reducer solves the problem that a sealing structure of an existing gear box speed reducer is prone to abrasion, and consequently the sealing structure is abraded. The gear box speed reducer comprises a box body with a shaft hole, a flange is arranged at the position, corresponding to the shaft hole, of the box body, a dustproof structure is installed on the flange, the dustproof structure comprises two connecting bases which are oppositely arranged and provided with metal filter sleeves, the connecting bases are installed on the flange, the two filter sleeves are distributed inside and outside in a spaced mode, and the connecting bases comprise the first connecting base and the second connecting base. The first connecting base is provided with a plurality of guide pipes with open grooves, the second connecting base is provided with a plurality of guide columns extending into the open grooves, and the second connecting base is provided with bolts used for connecting the guide columns and the guide pipes. The utility model has the advantages that the integral sealing performance is improved and the service life is prolonged.
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Description

Technical Field

[0001] This utility model belongs to the field of transmission device technology and relates to a gearbox reducer. Background Technology

[0002] Currently, the exposed drive shaft of the reducer is usually sealed to prevent external impurities from entering the housing. However, when working in an external environment, especially a dusty environment, the dust particles can easily wear down the sealing structure as the drive shaft rotates. This wear can affect the internal components and reduce the transmission accuracy. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a gearbox reducer with dustproof function.

[0004] The objective of this utility model can be achieved through the following technical solution: A gearbox reducer includes a housing with a shaft hole, characterized in that the housing has a flange corresponding to the shaft hole, and a dustproof structure is installed on the flange. The dustproof structure includes two opposing connecting seats, each with a metal filter sleeve. The connecting seats are installed on the flange, and the two filter sleeves are distributed at intervals. The connecting seats are respectively connecting seat one and connecting seat two. Connecting seat one has a plurality of guide tubes with slots, and connecting seat two has a plurality of guide posts extending into the slots. Bolts for connecting the guide posts and guide tubes are provided on connecting seat two.

[0005] In the aforementioned gearbox reducer, the metal filter sleeve has multiple filter holes.

[0006] Compared with existing technologies, this gearbox reducer has the advantages of improved overall sealing performance and service life. Attached Figure Description

[0007] Figure 1 This is a 3D view of the gearbox reducer.

[0008] Figure 2 This is a cross-sectional view of the dustproof structure in this gearbox reducer.

[0009] In the diagram, 1 is the housing; 2 is the flange; 4 is the metal filter sleeve; 5 is the connecting seat one; 6 is the connecting seat two; 7 is the guide tube; 8 is the guide column; 9 is the bolt; and 10 is the filter hole. Detailed Implementation

[0010] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0011] like Figure 1 , Figure 2 As shown, this gearbox reducer includes a housing 1 with a shaft hole. A flange 2 is located on the housing 1 corresponding to the shaft hole, and a dustproof structure is installed on the flange 2. The dustproof structure includes two opposing connecting seats, each with a metal filter sleeve 4. The connecting seats are mounted on the flange 2, with the two filter sleeves spaced apart. The connecting seats are connecting seat one 5 and connecting seat two 6. Connecting seat one 5 has several slotted guide tubes 7, and connecting seat two 6 has several guide posts 8 extending into the slots. Bolts 9 are provided on connecting seat two 6 to connect the guide posts 8 and the guide tubes 7. Through the inner and outer filter sleeves, particulate dust is blocked, preventing direct entry and wear on the sealing structure, greatly protecting the sealing structure and improving its service life and wear resistance.

[0012] Preferably, the metal filter sleeve 4 has a plurality of filter holes 10.

[0013] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0014] Although this document frequently uses terms such as housing 1, flange 2, metal filter sleeve 4, connecting seat one 5, connecting seat two 6, guide tube 7, guide post 8, bolt 9, and filter hole 10, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A gearbox reducer, comprising a housing (1) with a shaft hole, characterized in that, The housing (1) has a flange (2) at the corresponding shaft hole, and a dustproof structure is installed on the flange (2). The dustproof structure includes two opposing connecting seats, each with a metal filter sleeve (4). The connecting seats are installed on the flange (2), and the two filter sleeves are distributed at intervals inside and outside. The connecting seats are connecting seat one (5) and connecting seat two (6). Connecting seat one (5) has several guide tubes (7) with slots. Connecting seat two (6) has several guide posts (8) extending into the slots. Connecting seat two (6) is provided with bolts (9) for connecting the guide posts (8) and the guide tubes (7).

2. The gearbox reducer according to claim 1, characterized in that, The metal filter sleeve (4) has multiple filter holes (10).