Fan bracket assembly of rubber sealing ring multi-stage dustproof full-sealing structure

Abstract

The utility model relates to a fan bracket assembly of a rubber sealing ring multi-stage dustproof full-sealing structure. The fan bracket assembly comprises a fan belt pulley, a fan shaft, a front dustproof cover, a rear dustproof cover, a VD-shaped rubber sealing ring, a baffle, a bearing, a check ring and a bolt. A front dustproof cover is arranged at the left end of the fan belt wheel, a rear dustproof cover and a VD-shaped rubber sealing ring are arranged at the right end of the fan belt wheel, a bearing is arranged in an inner cavity of the fan belt wheel, and a check ring, a baffle and a bolt are arranged on the hole wall of the fan belt wheel. The middle end of the fan shaft is connected with a bearing, and the front ends of the dustproof cover and the fan shaft are connected with bolts. The plastic dustproof cover is mounted at the front end of the belt pulley to form a front-end full-sealed integral body, the metal dustproof cover at the rear end forms micro-intermittent dust prevention, and the VD-shaped rubber sealing ring is embedded into the annular groove of the metal dustproof cover to be in contact with the belt pulley to form rear-end full sealing, so that the normal working environment of an internal bearing is guaranteed, the service life of the bearing is prolonged, and the dustproof and waterproof effects are achieved; the structure is simple and assembling is convenient.

Description

Technical Field

[0001] The utility model relates to the field of fan bracket assemblies, in particular to a fan bracket assembly with a multi-stage dust-proof and fully sealed structure of rubber sealing rings. Background Art

[0002] With the rapid development of engines, engines are not only used on roads with good environments, but also in some harsh working conditions, such as mines, deserts, wetlands, and farmlands. At the same time, the silicone oil clutch fans used at the front end are constantly increasing in weight. The traditional fan bracket assembly can no longer fully meet the requirements of existing engines. The traditional fan bracket often adopts a micro-intermittent labyrinth dust-proof or only a fully sealed structure at the front end. When this structure is applied to harsh environmental conditions such as mines, deserts, wetlands, and farmlands for a long time, pollutants such as dust and mud enter the product interior, resulting in bearing failure, short service life, low reliability, and waste of time and labor costs.

[0003] The utility model provides a fan bracket assembly with a multi-stage dust-proof and fully sealed structure of rubber sealing rings, which is mainly used on the front-end gear train of an engine, can bear different loads and medium to high speeds, install large-quality fans and electromagnetic clutches and other components, and is applicable to harsh environmental conditions such as mines, deserts, wetlands, and farmlands. Content of the Utility Model

[0004] The purpose of the utility model is to provide a fan bracket assembly with a multi-stage dust-proof and fully sealed structure of rubber sealing rings for the above problems in the prior art.

[0005] A fan bracket assembly with a multi-stage dust-proof and fully sealed structure of rubber sealing rings includes a fan pulley, a fan shaft, a front dust cover, a rear dust cover, a V-shaped rubber sealing ring, a baffle, a bearing, a retaining ring, and bolts.

[0006] A front dust cover is arranged at the left end of the fan pulley, a rear dust cover and a V-shaped rubber sealing ring are arranged at the right end of the fan pulley, a bearing is arranged in the inner cavity of the fan belt pulley, and a retaining ring, a baffle, and bolts are arranged on the hole wall of the fan belt pulley.

[0007] The fan shaft fixes the dust cover, the middle end of the fan shaft is connected to the bearing and the dust cover, and the front end of the fan shaft is connected to the bolt.

[0008] Furthermore, for a fan bracket assembly with a multi-stage dust-proof and fully sealed structure of rubber sealing rings, a ring groove for the front dust cover is arranged at the left end of the fan pulley, and the material of the front dust cover is plastic.

[0009] Furthermore, for a fan bracket assembly with a multi-stage dust-proof and fully sealed structure of rubber sealing rings, a micro-intermittent step for the rear dust cover and a sinking groove for the V-shaped rubber sealing ring are arranged at the right end of the fan pulley, and the material of the rear dust cover is metal.

[0010] Furthermore, a fan bracket assembly with a multi - level dust - proof and fully - sealed structure of rubber sealing rings, wherein a mating hole for a bearing is provided in the inner cavity of the fan pulley.

[0011] Furthermore, a fan bracket assembly with a multi - level dust - proof and fully - sealed structure of rubber sealing rings, wherein a snap - ring groove, a baffle, and a stepped through - hole for a bolt are provided on the hole wall of the fan pulley.

[0012] Furthermore, a fan bracket assembly with a multi - level dust - proof and fully - sealed structure of rubber sealing rings, wherein the inner hole of the V - shaped rubber sealing ring is in interference fit with the rear dust cover, the V - shaped rubber sealing ring is arranged in the annular groove of the rear dust cover, and the R - lip of the V - shaped rubber sealing ring contacts the sunk groove of the fan pulley.

[0013] Furthermore, a fan bracket assembly with a multi - level dust - proof and fully - sealed structure of rubber sealing rings, wherein the inner hole of the rear dust cover is fixed by fitting with the fan shaft, the inner sunk groove of the rear dust cover is in interference fit with the V - shaped rubber sealing ring, and the outer ring of the rear dust cover is in a slightly - intermittent stepped fit with the fan pulley.

[0014] Furthermore, a fan bracket assembly with a multi - level dust - proof and fully - sealed structure of rubber sealing rings, wherein the fan shaft includes a bottom plate and a shaft body extending from the bottom plate. The bottom plate is provided with bolt mounting holes for connecting the engine body. A transition large fillet is provided at the shaft neck of the shaft body. The middle part of the fan shaft is the mounting shaft connecting the rear dust cover and the bearing, and the front end is provided with a threaded hole for connecting the bolt.

[0015] Furthermore, a fan bracket assembly with a multi - level dust - proof and fully - sealed structure of rubber sealing rings, wherein the bearing can be selected from double - row ball bearings, double - row tapered roller bearings, hub bearings, and combined bearings.

[0016] Furthermore, a fan bracket assembly with a multi - level dust - proof and fully - sealed structure of rubber sealing rings, wherein the front end of the fan pulley is connected with the front dust cover by interference fit to form a fully - sealed structure. The rear end of the fan pulley and the outer ring of the rear dust cover form a slightly - gap dust - proof structure. The sunk groove of the fan pulley contacts the R - lip of the V - shaped rubber sealing ring to form a multi - level dust - proof and fully - sealed structure.

[0017] The beneficial effects of the present utility model: By installing a plastic dust cover at the front end of the pulley to form a fully - sealed integration at the front end, and a metal dust cover at the rear end to form a slightly - intermittent dust - proof structure. At the same time, a V - shaped rubber sealing ring is embedded in the annular groove of the metal dust cover and contacts the pulley to form a fully - sealed structure at the rear end, effectively forming a fully - sealed structure at both the front and rear ends, ensuring the normal working environment of the internal bearing, improving the service life of the bearing, dust - proof and waterproof, with a simple structure and convenient assembly. Brief Description of the Drawings

[0018] Figure 1 It is a structural diagram of a fan bracket assembly with a multi - level dust - proof and fully - sealed structure of rubber sealing rings.

[0019] In the figure: 1 - fan pulley, 2 - fan shaft, 3 - front dust cover, 4 - rear dust cover, 5 - V-shaped rubber sealing ring,

[0020] 6 - baffle, 7 - bearing, 8 - retaining ring, 9 - bolt. Detailed implementation manners

[0021] For a clearer understanding of the technical features, objectives, and effects of the present utility model, the detailed implementation manners of the present utility model will now be described with reference to the accompanying drawings.

[0022] As shown in the attached Figure 1 drawing, a fan bracket assembly with a multi-stage dust-proof and fully sealed structure of a rubber sealing ring includes a fan pulley 1, a fan shaft 2, a front dust cover 3, a rear dust cover 4, a V-shaped rubber sealing ring 5, a baffle 6, a bearing 7, a retaining ring 8, and a bolt 9;

[0023] A front dust cover 3 is provided at the left end of the fan pulley 1, a rear dust cover 4 and a V-shaped rubber sealing ring 5 are provided at the right end of the fan pulley 1, a bearing 7 is provided in the inner cavity of the fan pulley 1, and a retaining ring 8, a baffle 6, and a bolt 9 are provided on the hole wall of the fan pulley 1;

[0024] The fan shaft 2 fixes the dust cover 4, the middle end of the fan shaft 2 is connected to the bearing 7 and the dust cover 4, and the front end of the fan shaft 2 is connected to the bolt 9.

[0025] Furthermore, for a fan bracket assembly with a multi-stage dust-proof and fully sealed structure of a rubber sealing ring, a ring groove for the front dust cover 3 is provided at the left end of the fan pulley 1, and the material of the front dust cover 3 is plastic.

[0026] Furthermore, for a fan bracket assembly with a multi-stage dust-proof and fully sealed structure of a rubber sealing ring, a micro-intermittent step for the rear dust cover 4 and a sink for the V-shaped rubber sealing ring 5 are provided at the right end of the fan pulley 1, and the material of the rear dust cover 4 is metal.

[0027] Furthermore, for a fan bracket assembly with a multi-stage dust-proof and fully sealed structure of a rubber sealing ring, a mating hole for the bearing 7 is provided in the inner cavity of the fan pulley 1.

[0028] Furthermore, for a fan bracket assembly with a multi-stage dust-proof and fully sealed structure of a rubber sealing ring, a ring groove for the retaining ring 8, a baffle 6, and a stepped through hole for the bolt 9 are provided on the hole wall of the fan pulley 1.

[0029] Furthermore, for a fan bracket assembly with a multi-stage dust-proof and fully sealed structure of a rubber sealing ring, the inner hole of the V-shaped rubber sealing ring 5 is in interference fit with the rear dust cover 4, the V-shaped rubber sealing ring 5 is arranged in the annular groove of the rear dust cover 4, and the R lip of the V-shaped rubber sealing ring 5 contacts the sink of the fan pulley 1.

[0030] Furthermore, a fan bracket assembly with a multi-stage dust-proof and fully sealed structure of a rubber sealing ring. The inner hole of the rear dust cover 4 is fixedly fitted through the fan shaft 2. The inner sunk groove of the rear dust cover 4 is in interference fit with the V-shaped rubber sealing ring 5. The outer ring of the rear dust cover 4 is in micro-intermittent step fit with the fan pulley 1.

[0031] Furthermore, a fan bracket assembly with a multi-stage dust-proof and fully sealed structure of a rubber sealing ring. The fan shaft 2 includes a bottom plate and a shaft body extending from the bottom plate. The bottom plate is provided with bolt mounting holes for connecting to the engine body. A transition large fillet is provided at the journal of the shaft body. The middle end of the fan shaft 2 is the mounting shaft connecting the rear dust cover 4 and the bearing 7, and the front end is the threaded hole connecting the bolt 9.

[0032] Furthermore, a fan bracket assembly with a multi-stage dust-proof and fully sealed structure of a rubber sealing ring. The bearing 7 can be selected from double-row ball bearings, double-row tapered roller bearings, hub bearings, and combined bearings.

[0033] Furthermore, a fan bracket assembly with a multi-stage dust-proof and fully sealed structure of a rubber sealing ring. The front end of the fan pulley 1 is connected to the front dust cover 3 through interference fit to form a fully sealed structure. The rear end of the fan pulley 1 and the outer ring of the rear dust cover 4 form a micro-gap dust-proof structure. The sunk groove of the fan pulley 1 contacts the R lip of the V-shaped rubber sealing ring 5 to form a multi-stage dust-proof and fully sealed structure.

[0034] This solution realizes a multi-stage dust-proof and fully sealed structure with a V-shaped rubber sealing ring through a fan bracket assembly with a multi-stage dust-proof and fully sealed structure of a rubber sealing ring, that is, it can achieve full sealing. At the same time, there are multiple dust-proof structures on one side of the seal, and the V-shaped rubber sealing ring structure is used on one side of the seal to form a fully sealed structure at the front and rear ends. It is applicable to working conditions with medium and high speeds and harsh environments, and has the characteristics of simple structure and high-efficiency dust-proof, realizing a fan bracket assembly structure with high load-bearing, high speed, high-efficiency dust-proof, and high adaptability.

[0035] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A fan bracket assembly with a multi-stage dust-proof and fully sealed structure of a rubber sealing ring, characterized in that, It includes a fan pulley (1), a fan shaft (2), a front dust cover (3), a rear dust cover (4), a V-shaped rubber seal ring (5), a baffle plate (6), a bearing (7), a retaining ring (8), and a bolt (9); A front dust cover (3) is provided at the left end of the fan pulley (1), a rear dust cover (4) and a V-shaped rubber seal ring (5) are provided at the right end of the fan pulley (1), a bearing (7) is provided in the inner cavity of the fan pulley (1), and a retaining ring (8), a baffle plate (6), and a bolt (9) are provided on the hole wall of the fan pulley (1); The fan shaft (2) fixes the rear dust cover (4), the middle end of the fan shaft (2) connects the bearing (7) and the rear dust cover (4), and the front end of the fan shaft (2) connects the bolt (9).

2. The fan bracket assembly with a multi-stage dust-proof and fully sealed structure of a rubber sealing ring according to claim 1, characterized in that, A ring groove for the front dust cover (3) is provided at the left end of the fan pulley (1), and the material of the front dust cover (3) is plastic.

3. The fan bracket assembly with a multi-stage dust-proof and fully sealed structure of a rubber sealing ring as described in claim 1, characterized in that, A micro-intermittent step for the rear dust cover (4) and a sink for the V-shaped rubber seal ring (5) are provided at the right end of the fan pulley (1), and the material of the rear dust cover (4) is metal.

4. The fan bracket assembly with a multi-stage dust-proof and fully sealed structure of a rubber sealing ring as described in claim 1, characterized in that, A mating hole for the bearing (7) is provided in the inner cavity of the fan pulley (1).

5. The fan bracket assembly with a multi-stage dust-proof and fully-sealed structure of a rubber sealing ring according to claim 1, characterized in that, A ring groove for the retaining ring (8), a baffle plate (6), and a stepped through hole for the bolt (9) are provided on the hole wall of the fan pulley (1).

6. The fan bracket assembly with a multi-stage dust-proof and fully-sealed structure of the rubber sealing ring according to claim 2, characterized in that, The inner hole of the V-shaped rubber seal ring (5) is in interference fit with the rear dust cover (4), the V-shaped rubber seal ring (5) is arranged in the annular groove of the rear dust cover (4), and the R lip of the V-shaped rubber seal ring (5) contacts the sink of the fan pulley (1).

7. The fan bracket assembly with a multi-stage dust-proof and fully sealed structure of a rubber sealing ring according to claim 3, characterized in that, The inner hole of the rear dust cover (4) is fixedly fitted through the fan shaft (2), the inner sink of the rear dust cover (4) is in interference fit with the V-shaped rubber seal ring (5), and the outer ring of the rear dust cover (4) is fitted with the micro-intermittent step of the fan pulley (1).

8. The fan bracket assembly with a multi-stage dust-proof and fully-sealed structure of the rubber sealing ring as described in claim 1, wherein, The fan shaft (2) includes a bottom plate and a shaft body extending from the bottom plate. The bottom plate is provided with bolt mounting holes for connecting the engine body. A transition large fillet is provided at the journal of the shaft body. The middle end of the fan shaft (2) connects the mounting shaft of the rear dust cover (4) and the bearing (7), and the front end connects the threaded hole of the bolt (9).

9. The fan bracket assembly with a multi-stage dust-proof and fully sealed structure of a rubber sealing ring as described in claim 1, characterized in that, The bearing (7) can be selected from double-row ball bearings, double-row tapered roller bearings, hub bearings, and combined bearings.

10. The fan bracket assembly with a multi-stage dust-proof and fully-sealed structure of the rubber sealing ring according to claim 7, characterized in that, The front end of the fan pulley (1) is connected with the front dust cover (3) by interference fit to form a fully sealed structure. The rear end of the fan pulley (1) and the outer ring of the rear dust cover (4) form a micro-gap dust-proof structure. The sink of the fan pulley (1) contacts the R lip of the V-shaped rubber seal ring (5) to form a multi-stage dust-proof fully sealed structure.

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