Dustproof tensioning wheel

Abstract

The dustproof tensioning wheel comprises an inner ring, inner clamping grooves are formed in the front end and the rear end of the outer side of the inner ring, an outer ring is connected to the outer side of the inner ring through balls, an inner ring is fixedly connected to the outer side of the outer ring, outer clamping grooves are formed in the front end and the rear end of the inner side of the inner ring, and clamping plates are clamped between the outer clamping grooves and the inner clamping grooves. An annular plate is fixedly connected to the outer side of the clamping plate, a dustproof plate is fixedly connected to the outer side of the annular plate, the dustproof plate, the annular plate and the clamping plate are all made of nitrile rubber, and protective layers are arranged on the surfaces of the dustproof plate, the annular plate and the clamping plate and comprise tungsten carbide coatings and aluminum oxide coatings. According to the tensioning wheel, the dustproof plate, the annular plate, the clamping plate, the outer clamping groove and the inner clamping groove are arranged, the connecting position of the tensioning wheel can be integrally covered, and therefore dust can be effectively prevented from being attached to the surfaces of objects such as balls, and the overall service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts, specifically is a dustproof tensioning wheel. BACKGROUND

[0002] The automobile tensioning wheel assembly is mainly to ensure that the engine can correctly transmit energy to other components when working normally, and its role in the whole vehicle determines the higher requirements for its performance, function index and use reliability, and the tensioning wheel plays a decisive role in the stability of the drive, when the center distance of the drive belt pulley cannot be adjusted, the tensioning wheel is usually used to tension the belt, so that the belt reaches the predetermined tensioning force, to ensure the normal work of the train, but the existing tensioning wheel lacks sealing mechanism, which leads to easy adhesion of dust in the use process, thereby reducing its service life, therefore, we provide a dustproof tensioning wheel. SUMMARY

[0003] The utility model discloses a dustproof tensioning wheel to solve the problem in the background art.

[0004] To achieve the above object, the utility model provides the following technical scheme: a dustproof tensioning wheel, including the inner ring, the front and rear ends of the inner ring outside are all seted up the inner clamping groove, the outside of inner ring is connected with the outer ring through the ball bearing, and the outside of outer ring is fixedly connected with the inner ring, the front and rear ends of the inner ring inside are all seted up the outer clamping groove, and the outer clamping groove and inner clamping groove are clamped with the clamping plate, the outside of clamping plate is fixedly connected with the annular plate, and the outside of annular plate is fixedly connected with the dustproof plate.

[0005] Preferably, the dustproof plate, annular plate and clamping plate are made of nitrile rubber, and the surfaces of the dustproof plate, annular plate and clamping plate are provided with a protective layer.

[0006] Preferably, the protective layer includes a tungsten carbide coating and an aluminum oxide coating, and the aluminum oxide coating is coated on the surfaces of the dustproof plate, annular plate and clamping plate.

[0007] Preferably, the tungsten carbide coating is coated on the other side of the aluminum oxide coating, and the thicknesses of the tungsten carbide coating and aluminum oxide coating are the same.

[0008] Preferably, the outer side of the inner ring is fixedly connected with a plurality of equidistantly distributed connecting plates, and the outer side of the connecting plate is fixedly connected with an outer ring.

[0009] Preferably, the front and rear ends of the outer surface of the outer ring are fixedly connected with baffles, and the outer surface of the outer ring is fixedly connected with a plurality of equidistantly distributed convex strips.

[0010] Compared with the prior art, the utility model has the advantages of the following:

[0011] 1. The utility model discloses a dustproof plate, annular plate, clamping plate, outer clamping groove and inner clamping groove can cover the connecting place of the tensioning wheel as a whole, thereby effectively avoiding dust adhering to the surface of the ball and other objects, and improving the overall service life.

[0012] 2. The utility model discloses a protective layer, the tungsten carbide coating included can carry out first layer wear -resisting protection treatment to the dustproof plate, annular plate and clamping plate, and the aluminum oxide coating can carry out second layer wear -resisting protection treatment to the dustproof plate, annular plate and clamping plate after the damage of tungsten carbide coating, thereby effectively improve the overall service life of dustproof plate, annular plate and clamping plate. ACCURACY OF DRAWINGS

[0013] Figure 1 It is the structure schematic drawing of the utility model;

[0014] Figure 2 It is the structure schematic drawing of the utility model inner clamping groove;

[0015] Figure 3 It is the structure schematic drawing of the utility model annular plate;

[0016] Figure 4 It is the structure schematic drawing of the utility model protective layer.

[0017] In the drawing: inner ring 1, dustproof plate 2, connecting plate 3, baffle 4, outer ring 5, convex strip 6, inner ring 7, outer clamping groove 8, inner clamping groove 9, ball 10, outer ring 11, annular plate 12, clamping plate 13, protective layer 14, tungsten carbide coating 141, aluminum oxide coating 142. DETAILED DESCRIPTION

[0018] The technical scheme in the embodiments of the utility model will be apparently and completely described below with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range of protection of the utility model.

[0019] The inner ring 1, dustproof plate 2, connecting plate 3, baffle 4, outer ring 5, convex strip 6, inner ring 7, outer clamping groove 8, inner clamping groove 9, ball 10, outer ring 11, annular plate 12, clamping plate 13, protective layer 14, tungsten carbide coating 141 and aluminum oxide coating 142 of the application are all general standard parts or parts known to the person skilled in the art, and their structure and principle can be known by the person skilled in the art through technical manual or through conventional experimental method.

[0020] Embodiment one:

[0021] Please refer to Figures 1-3The utility model provides a technical scheme as follows, specifically discloses: including inner ring 1, the front and back both ends of inner ring 1 outside are equipped with inner clamping groove 9, the outside of inner ring 1 is connected with outer ring 11 through ball 10, and the outside of outer ring 11 is fixedly connected with inner ring 7, the front and back both ends of inner ring 7 inside are equipped with outer clamping groove 8, and outer clamping groove 8 and inner clamping groove 9 are clamped with clamping plate 13, the outside of clamping plate 13 is fixedly connected with annular plate 12, and the outside of annular plate 12 is fixedly connected with dustproof plate 2, the outside of inner ring 7 is fixedly connected with a plurality of equidistance distribution's connecting plate 3, and the outside of connecting plate 3 is fixedly connected with outer ring 5, the front and back both ends of outer ring 5 outer surface are fixedly connected with baffle 4, and the outer surface of outer ring 5 is fixedly connected with a plurality of equidistance distribution's convex strip 6, set up dustproof plate 2, annular plate 12, clamping plate 13, outer clamping groove 8 and inner clamping groove 9, can cover the connecting place of this tension pulley as a whole, thereby can effectively avoid dust to adhere on the surface of ball 10 etc. object, improved the overall service life.

[0022] Embodiment two:

[0023] Please refer to Figure 4 The utility model provides a technical scheme as follows, specifically discloses: the material of dustproof plate 2, annular plate 12 and clamping plate 13 are all nitrile rubber, and the surface of dustproof plate 2, annular plate 12 and clamping plate 13 is all provided with protective layer 14, protective layer 14 includes tungsten carbide coating 141 and alumina coating 142, and alumina coating 142 is coated on the surface of dustproof plate 2, annular plate 12 and clamping plate 13, tungsten carbide coating 141 is coated on the other side of alumina coating 142, and the thickness of tungsten carbide coating 141 and alumina coating 142 is same, set up protective layer 14, and the tungsten carbide coating 141 included can carry out first layer wear -resisting protection treatment to dustproof plate 2, annular plate 12 and clamping plate 13, and alumina coating 142 can carry out second layer wear -resisting protection treatment to dustproof plate 2, annular plate 12 and clamping plate 13 after the damage of tungsten carbide coating 141, to effectively improve the service life of dustproof plate 2, annular plate 12 and clamping plate 13 as a whole.

[0024] The working principle of the present application is as follows: the dustproof plate 2, annular plate 12, clamping plate 13, outer clamping groove 8 and inner clamping groove 9 are provided, which can cover the connecting part of the tension pulley as a whole, thereby effectively preventing dust from adhering to the surface of the ball 10 and other objects, improving the overall service life. The protective layer 14 is provided, which includes a tungsten carbide coating 141 that can provide first layer wear-resistant protection to the dustproof plate 2, annular plate 12 and clamping plate 13. After the damage of the tungsten carbide coating 141, the alumina coating 142 can provide second layer wear-resistant protection to the dustproof plate 2, annular plate 12 and clamping plate 13, thereby effectively improving the overall service life of the dustproof plate 2, annular plate 12 and clamping plate 13.

[0025] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dust-proof tensioning wheel comprising an inner ring (1), characterized in that: The inner ring (1) is provided with inner clamping grooves (9) at both ends, the outer side of the inner ring (1) is connected with an outer ring (11) through balls (10), the outer side of the outer ring (11) is fixedly connected with an inner ring (7), the inner ring (7) is provided with outer clamping grooves (8) at both ends, the clamping grooves (8) and the clamping grooves (9) are clamped with clamping plates (13), the outer side of the clamping plates (13) is fixedly connected with annular plates (12), and the outer side of the annular plates (12) is fixedly connected with dustproof plates (2).

2. A dust-proofed tensioning wheel according to claim 1, characterized in that: The dustproof plates (2), the annular plates (12) and the clamping plates (13) are made of butadiene-acrylonitrile rubber, and the surfaces of the dustproof plates (2), the annular plates (12) and the clamping plates (13) are provided with protective layers (14).

3. A dust-sealed tensioning pulley according to claim 2, characterised in that: The protective layer (14) comprises a tungsten carbide coating (141) and an aluminum oxide coating (142), and the aluminum oxide coating (142) is coated on the surfaces of the dustproof plates (2), the annular plates (12) and the clamping plates (13).

4. A dust-sealed tensioning pulley according to claim 3, characterised in that: The tungsten carbide coating (141) is coated on the other side of the aluminum oxide coating (142), and the thicknesses of the tungsten carbide coating (141) and the aluminum oxide coating (142) are the same.

5. A dust-sealed tensioning pulley as claimed in claim 1, characterized in that: The outer side of the inner ring (7) is fixedly connected with a plurality of equidistantly distributed connecting plates (3), and the outer side of the connecting plates (3) is fixedly connected with an outer ring (5).

6. A dust-sealed tensioning pulley according to claim 5, characterised in that: The outer surface of the outer ring (5) is fixedly connected with baffles (4) at both ends, and the outer surface of the outer ring (5) is fixedly connected with a plurality of equidistantly distributed convex strips (6).

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