A gearbox filter belt assembly

The transmission filter belt assembly, with its dual-layer filter design, solves the problems of insufficient filtration accuracy and anti-clogging ability, improves oil purity, reduces wear on transmission components caused by impurities, and extends service life.

CN224469638UActive Publication Date: 2026-07-07RUIAN CHANGTONG AUTO PARTS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
RUIAN CHANGTONG AUTO PARTS CO LTD
Filing Date
2025-07-30
Publication Date
2026-07-07

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Abstract

The utility model relates to mechanical engineering technical field, proposes a kind of gearbox filter belt assembly, including first skeleton, the first skeleton is connected with multiple first filter screen, second skeleton is provided in first skeleton, multiple second filter screen is connected on second skeleton, the first skeleton and second skeleton are fixedly connected by first fixed ring and second fixed ring, the second fixed ring is fixedly connected with connecting ring, multiple mounting holes are set up on connecting ring, the device adopts double-layer filter screen design to improve oil filtering effect, second filter screen first intercepts larger particle size impurity, prevents it from entering subsequent link, avoids large impurity damage fine filtration first filter screen;First filter screen captures smaller particle size impurity again, greatly improves overall filtration precision, filtered oil is cleaner, can fully meet the requirement of gearbox to oil purity, effectively reduce the wear and tear of impurity to internal gear, bearing and other precision components, guarantee gearbox stable operation.
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Description

Technical Field

[0001] This utility model relates to the field of mechanical engineering technology, specifically to a gearbox filter belt assembly. Background Technology

[0002] In mechanical transmission systems, the gearbox, as the core component for power transmission and speed change, directly depends on the purity of its internal fluid. The gearbox contains numerous precision-fitting components such as gears, bearings, and synchronizers. These components generate friction during high-speed operation. If impurities (such as metal shavings, dust, or gum) are mixed into the fluid, they will abrade the surfaces of these precision components as the fluid circulates, accelerating wear and causing gear shifting difficulties, abnormal noises, and even serious mechanical failures, significantly shortening its lifespan.

[0003] To ensure fluid purity, most transmissions are equipped with filters that use screens to trap impurities in the fluid. However, traditional filters often use a single-layer screen design, which makes it difficult to balance filtration accuracy with anti-clogging capabilities. If the screen pores are small, they can filter out fine impurities, but they are easily clogged by larger particles, leading to poor fluid flow and affecting the transmission's heat dissipation and lubrication. If the screen pores are large, they can reduce clogging, but they cannot effectively trap fine impurities. These fine impurities will continue to accumulate and cause wear on precision components over time. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the shortcomings of the prior art, this utility model provides a gearbox filter belt assembly to solve the problems of the prior art mentioned in the background.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a gearbox filter belt assembly, comprising a first frame, on which a plurality of first filter screens are connected, a second frame is disposed within the first frame, on which a plurality of second filter screens are connected, and the first frame and the second frame are fixedly connected by a first fixing ring and a second fixing ring.

[0008] Optionally, a connecting ring is fixedly connected to the second fixing ring, and the connecting ring has multiple mounting holes.

[0009] Optionally, a sealing gasket is provided at the top of the first retaining ring.

[0010] Optionally, a plurality of reinforcing plates are fixedly connected between the first frame and the second frame.

[0011] Optionally, the pore size of the first filter screen is smaller than that of the second filter screen.

[0012] Optionally, a sealing ring is provided at the top of the second fixing ring, and the sealing ring is sleeved on the second skeleton.

[0013] (III) Beneficial Effects

[0014] In summary, this utility model has at least one of the following beneficial technical effects:

[0015] This transmission filter assembly uses a dual-layer filter design to filter the oil. The second filter first intercepts larger particles of impurities, preventing them from entering subsequent filtration stages and protecting the first filter from damage. Then, the first filter captures smaller particles of impurities, greatly improving the overall filtration accuracy and making the filtered oil cleaner. This better meets the transmission's requirements for oil purity and reduces wear on precision components such as gears and bearings inside the transmission. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the disassembled structure of this utility model;

[0017] Figure 2 This utility model Figure 1 A magnified schematic diagram of the partial structure at point A in the middle;

[0018] Figure 3 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the front view of the present invention.

[0020] In the diagram: 1. First frame; 2. First filter screen; 3. Second frame; 4. Second filter screen; 5. First fixing ring; 6. Second fixing ring; 7. Connecting ring; 8. Mounting hole; 9. Sealing gasket; 10. Reinforcing plate; 11. Sealing ring. Detailed Implementation

[0021] 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.

[0022] The present invention will be further described in detail below with reference to the accompanying drawings.

[0023] Reference Figures 1-4 A transmission filter belt assembly includes a first frame 1 with multiple first filter screens 2 connected to it. A second frame 3 is disposed within the first frame 1, with multiple second filter screens 4 connected to it. The first frame 1 and the second frame 3 are fixedly connected by a first fixing ring 5 and a second fixing ring 6. Impurities in the oil are filtered through the first filter screens 2 and the second filter screens 4. A connecting ring 7 is fixedly connected to the second fixing ring 6, and the connecting ring 7 has multiple mounting holes 8. The connecting ring 7 and the mounting holes 8 provide convenient connection points for the installation of the filter belt assembly, facilitating its quick and accurate installation into the corresponding position in the transmission. A sealing gasket 9 is provided at the top of the first fixing ring 5, which enhances the sealing effect of the first fixing ring 5. The sealing performance of the end effectively prevents oil or other substances in the gearbox from leaking from this part, ensuring the sealing of the filtration environment. Multiple reinforcing plates 10 are fixedly connected between the first frame 1 and the second frame 3. The reinforcing plates 10 can further strengthen the connection strength between the first frame 1 and the second frame 3, improve the rigidity and deformation resistance of the overall structure, and extend the service life of the filter belt assembly. The filter holes of the first filter screen 2 are smaller than those of the second filter screen 4. Larger impurities are filtered through the second filter screen 4, and smaller impurities are filtered through the first filter screen 2, which can improve the filtration accuracy and filtration effect, and better purify the oil in the gearbox. A sealing ring 11 is provided at the top of the second fixing ring 6. The sealing ring 11 is sleeved on the second frame 3 to enhance the installation sealing.

[0024] In summary, the working principle and process of the transmission filter belt assembly are as follows: In use, the filter belt assembly is first aligned with the corresponding installation position inside the transmission through multiple mounting holes 8, and then fixed in the designated part inside the transmission by bolts passing through the mounting holes 8. When the transmission starts working, the internal oil flows under pressure and enters the filtration area of ​​the filter belt assembly. The oil first contacts the second filter screen 4 on the second frame 3 for interception and filtration, and then contacts the first filter screen 2 on the first frame 1 for further filtration.

[0025] The above embodiments merely illustrate specific implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A gearbox filter belt assembly comprising a first carcass (1), characterized in that: The first skeleton (1) is connected with a plurality of first filter screens (2), a second skeleton (3) is arranged in the first skeleton (1), a plurality of second filter screens (4) are connected to the second skeleton (3), and the first skeleton (1) and the second skeleton (3) are fixedly connected through a first fixing ring (5) and a second fixing ring (6).

2. A filter belt assembly for a gearbox according to claim 1, characterized in that: The second fixing ring (6) is fixedly connected with a connecting ring (7), and a plurality of mounting holes (8) are formed in the connecting ring (7).

3. A gearbox filter belt assembly according to claim 2, wherein: The top end of the first fixing ring (5) is provided with a sealing gasket (9).

4. A gearbox filter belt assembly according to claim 3, wherein: A plurality of reinforcing plates (10) are fixedly connected between the first skeleton (1) and the second skeleton (3).

5. A gearbox filter belt assembly according to claim 4, wherein: The filter holes of the first filter screens (2) are smaller than those of the second filter screens (4).

6. A gearbox filter belt assembly according to claim 5, wherein: The top end of the second fixing ring (6) is provided with a sealing ring (11), and the sealing ring (11) is sleeved on the second skeleton (3).