Gear box convenient to maintain

By incorporating built-in disassembly components and external snap-fit ​​components, the problem of gearbox sealing failure during maintenance is solved, enabling efficient gearbox maintenance and lubrication retention, and reducing transmission wear.

CN224064802UActive Publication Date: 2026-03-31QINGDAO TULIP MACHINERY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-06
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing gearboxes are prone to sealing failure during maintenance, leading to the entry of foreign objects and loss of lubricating oil, which affects the wear of the gear transmission.

Method used

The design employs a built-in disassembly component and an external snap-fit ​​component, allowing the gearbox to be split vertically or horizontally via threaded connections and snap-fit ​​structures. This ensures that the gearbox remains sealed during maintenance, preventing foreign objects from entering and lubricating oil from leaking out.

Benefits of technology

It improves the internal sealing of the gearbox, preventing foreign objects from entering and lubricating oil from leaking out, and reducing transmission wear of the gear set.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the related technical field of gear boxes, in particular to a gear box convenient to maintain, which comprises a box body, a sealing plate, a reinforcing plate and a sealing component, the sealing plate is in threaded connection with a sealing position on the box body, and the reinforcing plate penetrates through a fastening position on the sealing plate. According to the utility model, the up-and-down split design and the left-and-right split design of the gear box can be combined, and when the gear box needs to be opened in the connecting, fixing and maintaining processes through bolts, the built-in box can be fastened on the gear shaft bracket and the sealing plate in a threaded manner, so that the sealing plate is fixed, and the sealing plate is fixed; and external sealing is conducted through a packaging cover plate, a mounting groove and a clamping frame, the built-in box is sealed in the gear box, foreign matter is prevented from entering the gear box through gaps in the using process, when the gear box is opened during maintenance, the built-in box prevents part of gear lubricating oil from being lost, the lubricating oil is kept in the built-in box, and after the gear box is maintained and disassembled, the gear box is prevented from being damaged. And the gear lubricating oil without loss can reduce the transmission wear degree of the gear set.
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Description

Technical Field

[0001] This utility model relates to the technical field of gearboxes, specifically a gearbox that is easy to maintain. Background Technology

[0002] A gearbox is a device used for mechanical transmission. It uses gears of different sizes and shapes to mesh with each other to transmit power, change speed, and convert torque. Speed ​​change function: It can accelerate or decelerate to meet the speed requirements of different equipment. For example, in a wind turbine generator set, it can increase the low speed of the wind turbine to the high speed required by the generator. Changing the transmission direction: Through a specific gear combination, such as sector gears, force can be transmitted vertically to another rotating shaft, thus changing the direction of power transmission.

[0003] Existing gearboxes are designed with split sections on the top and bottom or left and right, and are fixed by bolts. During maintenance, the gearbox needs to be opened, which affects the gearbox's sealing performance. During use, foreign objects can easily enter through the gaps. Once the gearbox is opened, some of the gear lubricating oil will be lost, causing wear on the gear set transmission. Utility Model Content

[0004] The purpose of this invention is to provide a gearbox that is easy to maintain, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A maintenance-friendly gearbox includes a housing, a sealing plate, a reinforcing plate, and a sealing assembly. The sealing plate is threadedly connected to a sealing point on the housing. A reinforcing plate passes through a fastener on the sealing plate. The sealing assembly has a mounting point for both the sealing plate and the reinforcing plate. The assembly also includes...

[0007] A built-in disassembly assembly is installed on the sealing plate;

[0008] An external buckle assembly is mounted on the housing.

[0009] The top of the housing is equipped with a sealing cover plate, a through bolt is fixed at the mounting point on the sealing cover plate, a through hole bracket is connected at the fixing point on the sealing plate, and a gear shaft bracket is installed in the middle of the sealing plate.

[0010] As described above, the gearbox is designed for easy maintenance: the housing and the sealing plate are fastened by threaded fastening through a through-hole bracket.

[0011] As described above, the gearbox is designed for easy maintenance: the encapsulation cover is snapped onto the housing and the sealing plate by a through bolt thread.

[0012] The gearbox described above is designed for easy maintenance: the built-in disassembly assembly includes a built-in threaded groove formed on a sealing plate, and a built-in housing is installed at the seal on the built-in threaded groove.

[0013] As described above, the gearbox is easy to maintain: the inner housing and the inner threaded groove are snapped together by the gear shaft carrier thread.

[0014] The gearbox described above is easy to maintain: the external snap-fit ​​assembly includes a mounting groove at the bottom of the encapsulation cover, a snap-fit ​​bracket is provided at the fixing point on the mounting groove, and a handle is fixed at the disassembly point on the gearbox body.

[0015] As described above, the gearbox is designed for easy maintenance: the handle and the housing are secured to the locking frame by a threaded cover.

[0016] Compared with the prior art, the beneficial effects of this utility model are: the user can thread the gear shaft bracket into the built-in threaded groove and sealing plate, which can seal the built-in box on the built-in threaded groove and sealing plate, making it easy for the user to manually disassemble the built-in box, gear shaft bracket and sealing plate for gear maintenance. The gear box adopts a split design of upper and lower or left and right. After being fixed by bolt connection, the gear box needs to be opened during maintenance. The built-in box is threaded into the gear shaft bracket and sealing plate to perform internal sealing, improve the internal sealing of the gear box, and prevent foreign objects from entering the gap between the box and the sealing plate during use.

[0017] The gearbox can be designed with both vertical and horizontal split sections, which are fixed by bolts. When the gearbox needs to be opened during maintenance, the inner housing can be threaded onto the gear shaft bracket and sealing plate. Then, the outer seal is achieved through the encapsulation cover, mounting groove, and locking bracket. The inner housing is sealed inside the gearbox to prevent foreign objects from entering through gaps during use. When the gearbox is opened for maintenance, the inner housing prevents some gear lubricating oil from leaking out, keeping the lubricating oil inside the inner housing. After the gearbox is disassembled for maintenance, the unlost gear lubricating oil can reduce the wear of the gear transmission. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the installation structure of the gear shaft bracket of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the built-in disassembly component of this utility model;

[0021] Figure 4 This is a schematic diagram of the external buckle assembly of this utility model.

[0022] In the diagram: 1. Housing; 2. Mounting bolt sleeve; 3. Through hole bracket; 4. Encapsulation cover plate; 5. Through bolt; 6. Gear shaft bracket; 7. Sealing plate; 8. Reinforcing plate; 9. Internal threaded groove; 10. Internal box; 11. Mounting slot; 12. Handle; 13. Clamping bracket. Detailed Implementation

[0023] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0024] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0025] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented even without certain specific details. In some instances, methods, means, and elements well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0026] Please see Figures 1-4 A gearbox that is easy to maintain is proposed, including a housing 1, a sealing plate 7, a reinforcing plate 8, and a sealing assembly.

[0027] The sealing part of the housing 1 is threaded with a sealing plate 7, and the fastening part of the sealing plate 7 is through a reinforcing plate 8. The installation part of the sealing assembly is provided with a sealing plate 7 and a reinforcing plate 8. The internal disassembly assembly is installed on the sealing plate 7; the external buckle assembly is provided on the housing 1.

[0028] The entire housing 1 is installed on the sealing plate 7, and the reinforcing plate 8 is threaded through the installation point of the housing 1 and the sealing plate 7, so that the sealing plate 7 and the housing 1 can be sealed and installed.

[0029] Among them, the top of the housing 1 is equipped with a sealing cover plate 4, the mounting point of the sealing cover plate 4 is fixed with a through bolt 5, the fixing point of the sealing plate 7 is connected with a through hole bracket 3, and the middle of the sealing plate 7 is equipped with a gear shaft bracket 6.

[0030] In this embodiment, when the reinforcing plate 8 is threaded through the housing 1 and the sealing plate 7, the encapsulation cover 4 is installed on the top of the housing 1, so that the through bolt 5 is threaded through the encapsulation cover 4 for sealing and buckling. The housing 1 and the sealing plate 7 are then threaded through and positioned on the machine by the through hole bracket 3, and the gear shaft bracket 6 is then threadedly fastened to the sealing plate 7.

[0031] Preferably, the housing 1 and the sealing plate 7 are fastened by threaded through the through hole bracket 3. The through hole bracket 3 is fixedly connected to the sealing plate 7. When the housing 1 is installed on the sealing plate 7 as a whole, the reinforcing plate 8 is threaded through the installation point of the housing 1 and the sealing plate 7, so that the housing 1 and the sealing plate 7 can be assembled.

[0032] Preferably, the encapsulation cover 4 is threadedly fastened to the housing 1 and the sealing plate 7 by the through bolt 5. After the housing 1 and the sealing plate 7 are sealed by the through bolt 8, the entire housing 1 and the sealing plate 7 are then secured by the encapsulation cover 4, thereby improving the sealing performance of the housing 1 and the sealing plate 7.

[0033] Please refer to Figure 2 and Figure 3 In this embodiment, the built-in disassembly assembly includes a built-in threaded groove 9 formed on the sealing plate 7, and a built-in box 10 is installed at the sealing part of the built-in threaded groove 9.

[0034] The built-in threaded groove 9 is opened on the sealing plate 7, and the built-in box 10 is installed on the built-in threaded groove 9 and the sealing plate 7 for fastening assembly. The built-in box 10 can be completely sealed on the gearbox.

[0035] Preferably, the built-in housing 10 and the built-in threaded groove 9 are threaded together by the gear shaft bracket 6. When the built-in housing 10 is installed on the built-in threaded groove 9 and the sealing plate 7 for fastening assembly, the user can thread the gear shaft bracket 6 into the built-in threaded groove 9 and the sealing plate 7 to seal the built-in housing 10 on the built-in threaded groove 9 and the sealing plate 7. This facilitates the user's manual disassembly of the built-in housing 10, the gear shaft bracket 6 and the sealing plate 7 for gear maintenance. The gearbox adopts a split design, either vertically or horizontally. After being fixed by bolts, the gearbox needs to be opened during maintenance. The built-in housing 10 is threaded into the gear shaft bracket 6 and the sealing plate 7 to perform internal sealing, improve the internal sealing of the gearbox and prevent foreign objects from entering the gaps between the housing 1 and the sealing plate 7 during use.

[0036] Please refer to Figure 3 and Figure 4 In this embodiment, the external buckle assembly includes a mounting groove 11 formed at the bottom of the encapsulation cover plate 4, a locking bracket 13 is provided at the fixing point on the mounting groove 11, and a handle 12 is fixed at the disassembly point on the housing 1.

[0037] When the gearbox adopts a split design, the encapsulation cover 4 and the through bolt 5 can be installed as a whole inside the mounting groove 11. The encapsulation cover 4 can be snapped into the mounting groove 11 and the snap-fit ​​bracket 13. The through bolt 5 is threaded through the encapsulation cover 4, the mounting groove 11 and the snap-fit ​​bracket 13 to form a sealing snap. Then the handle 12 is fixedly connected to the housing 1.

[0038] Preferably, the handle 12 and the housing 1 are threadedly fastened to the locking frame 13 by the encapsulation cover 4. The encapsulation cover 4 can be fully locked onto the mounting groove 11 and the locking frame 13, which can combine the upper and lower and left and right split designs of the gearbox. It is fixed by bolt connection. When the gearbox needs to be opened during maintenance, the inner box 10 can be threadedly fastened to the gear shaft bracket 6 and the sealing plate 7, and then externally sealed by the encapsulation cover 4, the mounting groove 11 and the locking frame 13. The inner box 10 is sealed inside the gearbox to prevent foreign objects from entering through gaps during use. When the gearbox is opened during maintenance, the inner box 10 prevents some gear lubricating oil from being lost, so that the lubricating oil is kept inside the inner box 10. After the gearbox is disassembled for maintenance, the unlost gear lubricating oil can reduce the wear of the gear transmission.

[0039] As can be seen from the above, during use, the encapsulation cover plate 4 is installed on the top of the housing 1, so that the through bolt 5 is threaded through the encapsulation cover plate 4 for sealing and snapping. The housing 1 and the sealing plate 7 are threaded through and positioned on the machine by the through hole bracket 3. Then, the gear shaft bracket 6 is threadedly fastened to the sealing plate 7. When it is necessary to open the gearbox during maintenance, the inner box 10 can be threadedly fastened to the gear shaft bracket 6 and the sealing plate 7. Then, the encapsulation cover plate 4, the mounting groove 11 and the snap-fit ​​bracket 13 are used for external sealing. The inner box 10 is sealed inside the gearbox to prevent foreign objects from entering through gaps during use.

[0040] Users can thread the gear shaft holder 6 into the built-in threaded groove 9 and the sealing plate 7 to seal the built-in box 10 on the built-in threaded groove 9 and the sealing plate 7. This allows users to manually disassemble the built-in box 10, gear shaft holder 6 and sealing plate 7 for gear maintenance. The gearbox adopts a split design, either vertically or horizontally. After being fixed by bolts, the gearbox needs to be opened during maintenance. The built-in box 10 is threaded into the gear shaft holder 6 and the sealing plate 7 to seal the inside.

[0041] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0042] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A gear box convenient for maintenance, comprising a box body (1), a sealing plate (7) and a reinforcing plate (8) and a sealing assembly, the sealing plate (7) is threadedly connected on the sealing position of the box body (1), the reinforcing plate (8) is penetrated on the fastening position of the sealing plate (7), the sealing plate (7) and the reinforcing plate (8) are arranged on the mounting position of the sealing assembly, characterized in that: Also include provided with, Built-in disassembly components, installed on the sealing plate (7); External buckle assembly, provided on the box (1); Wherein, the box (1) top end is provided with packaging cover plate (4), the installation of the packaging cover plate (4) is fixed with through bolt (5), the fixed place on the sealing plate (7) is connected with through hole frame (3), the sealing plate (7) middle part is provided with gear shaft frame (6).

2. A gear case for ease of maintenance according to claim 1, wherein The box (1) and the sealing plate (7) are screwed through the through hole frame (3).

3. A gear case for ease of maintenance according to claim 1, wherein The packaging cover plate (4) is screwed through the through bolt (5) and buckled on the box (1) and the sealing plate (7).

4. A gear case for ease of maintenance according to claim 1, wherein The built-in disassembly component includes a built-in threaded groove (9) opened in the sealing plate (7), and a built-in box (10) mounted on the sealing portion of the built-in threaded groove (9).

5. A gear case for ease of maintenance according to claim 4 wherein, The built-in box (10) and the built-in threaded groove (9) are screwed together through the gear shaft frame (6).

6. A gear case for ease of maintenance according to claim 1, wherein The external buckle assembly includes a mounting groove (11) opened at the bottom end of the packaging cover plate (4), a clamping frame (13) provided on the fixed portion of the mounting groove (11), and a handle (12) fixed on the disassembly portion of the box (1).

7. A gear case for ease of maintenance according to claim 6 wherein, The handle (12) and the box (1) are screwed through the packaging cover plate (4) and buckled on the clamping frame (13).