Framework oil seal limiting device

Abstract

The utility model discloses a framework oil seal limiting device which comprises a shaft piece and an oil seal, a groove is formed in one side of the oil seal, a sealing gasket is arranged in the groove, a plurality of extrusion grooves are formed in the outer side wall of the sealing gasket, a cover plate is arranged on one side of the oil seal, a plurality of first springs are fixedly connected to the inner wall of the cover plate, and a plurality of second springs are fixedly connected to the inner wall of the cover plate. One end of each first spring is fixedly connected with an extrusion block, a plurality of inserting grooves are formed in one side of the sealing gasket, mounting grooves are formed in the two sides of each inserting groove, second springs are fixedly connected into the mounting grooves, and one ends of the second springs are fixedly connected with fixing protruding blocks. A plurality of inserting blocks are fixedly connected to one side of the cover plate, and fixing grooves are formed in the two end faces of each inserting block. And the sealing gasket is extruded through a cover plate, a first spring, an extrusion block and an extrusion groove, a gap is prevented from being formed between the shaft piece and the oil seal, and the practicability of the sealing gasket is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of skeleton oil seal, concretely is a skeleton oil seal limiting device. BACKGROUND

[0002] Skeleton oil seal is the typical representative of oil seal, and the oil seal generally refers to skeleton oil seal, and is widely used in aviation, automobile, motorcycle, railway, vehicle, ship, household appliance, engineering machinery and other industries. The function of oil seal is generally to isolate the parts needing lubrication in the transmission part from the output part, so as not to leak lubricating oil.

[0003] As a common oil seal mode, the plastic gasket in the oil seal will appear tension drop in the sealing process, and a gap will appear between the shaft and the oil seal, reducing the practicability of the plastic sealing gasket. UTILITY MODEL CONTENTS

[0004] The utility model discloses a skeleton oil seal limiting device can be extruded to sealing gasket through cover plate, first spring, extrusion block, extrusion groove, prevent the gap between shaft spare and oil seal, and the practicability of sealing gasket is enhanced.

[0005] In order to achieve the above object, a skeleton oil seal limiting device is provided, which comprises a shaft, an oil seal, a recess is formed on one side of the oil seal, a sealing gasket is arranged in the recess, a plurality of extrusion grooves are formed on the outer side wall of the sealing gasket, and a cover plate is arranged on one side of the oil seal.

[0006] The inner wall of the cover plate is fixedly connected with a plurality of first springs, one end of the first spring is fixedly connected with an extrusion block, a plurality of plug-in grooves are formed on one side of the sealing gasket, installation grooves are formed on both sides of the plug-in groove, a second spring is fixedly connected in the installation groove, one end of the second spring is fixedly connected with a fixed protrusion, a plurality of plug-in blocks are fixedly connected on one side of the cover plate, and a fixed groove is formed on both end faces of the plug-in block.

[0007] According to the skeleton oil seal limiting device, the surface of the cover plate is threadedly connected with a plurality of bolts, and the cover plate is fixedly connected with the oil seal through the bolts.

[0008] According to the skeleton oil seal limiting device, the fixed protrusion is a "hemisphere", and the fixed groove is a "hemispherical groove".

[0009] According to the skeleton oil seal limiting device, the shaft penetrates the cover plate, the oil seal and the sealing gasket.

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

[0011] 1. The skeleton oil seal limiting device, through the setting cover, first spring, extrusion block, extrusion groove, extrusion to the sealing gasket, prevent the shaft and oil seal gap, enhance the practicality of plastic sealing gasket.

[0012] 2. The skeleton oil seal limiting device, through the setting plug-in block, fixed groove, installation groove, second spring, fixed lug, positioning cover, further fixed cover, and then improve the fixed effect of sealing gasket.

[0013] The additional aspects and advantages of the present application will be given in part in the following description, and will become apparent from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0014] The present application will be further described below in conjunction with the drawings and examples.

[0015] Figure 1 It is a skeleton oil seal limiting device of the utility model three-dimensional view;

[0016] Figure 2 It is a skeleton oil seal limiting device of the utility model sectional view;

[0017] Figure 3 It is a sealing gasket structure schematic view of the utility model skeleton oil seal limiting device;

[0018] Figure 4 It is the Figure 2 enlarged schematic view of A in the utility model.

[0019] In the drawing: 1, shaft; 2, oil seal; 3, groove; 4, sealing gasket; 5, extrusion groove; 6, cover; 7, bolt; 8, first spring; 9, extrusion block; 10, plug-in slot; 11, installation groove; 12, second spring; 13, fixed lug; 14, plug-in block; 15, fixed groove. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0021] Please refer to Figures 1-4The utility model discloses an embodiment provides a technical scheme: a framework oil seal limiting device, including axle 1, oil seal 2, the one side of oil seal 2 is provided with recess 3, the inside of recess 3 is provided with sealing washer 4, the outside wall of sealing washer 4 is provided with a plurality of extrusion groove 5, the one side of oil seal 2 is provided with cover plate 6,

[0022] The inner wall of cover plate 6 is fixedly connected with a plurality of first springs 8, one end of first spring 8 is fixedly connected with extrusion block 9, by setting cover plate 6, first spring 8, extrusion block 9, extrusion groove 5, extruding sealing washer 4, prevent the gap between axle 1 and oil seal 2, enhance the practicability of sealing washer 4, the one side of sealing washer 4 is provided with a plurality of plug-in groove 10, both sides of plug-in groove 10 are provided with mounting groove 11, the inside of mounting groove 11 is fixedly connected with second spring 12, one end of second spring 12 is fixedly connected with fixed lug 13, the one side of cover plate 6 is fixedly connected with a plurality of plug-in block 14, both end faces of plug-in block 14 are provided with fixed slot 15, by setting plug-in block 14, fixed slot 15, mounting groove 11, second spring 12, fixed lug 13, the positioning of cover plate 6 is carried out, further fixed cover plate 6, and then improve the fixed effect of sealing washer 4.

[0023] The surface of cover plate 6 is threadedly connected with a plurality of bolts 7, cover plate 6 is fixedly connected with oil seal 2 through bolt 7, fixed lug 13 is "hemispherical body", fixed slot 15 is "hemispherical groove", axle 1 penetrates cover plate 6, oil seal 2, sealing washer 4.

[0024] Working principle: when using, oil seal 2 is installed on axle 1, cover plate 6 is covered on oil seal 2, at this moment, plug-in block 14 is inserted into plug-in groove 10, plug-in block 14 extrudes fixed lug 13, fixed lug 13 extrudes second spring 12, second spring 12 is compressed, makes fixed lug 13 enter into mounting groove 11, plug-in block 14 enters into the inside of plug-in groove 10, second spring 12 resets, drives fixed lug 13 to return to the original position and enter into fixed slot 15, cover plate 6 realizes positioning, is fixed again through bolt 7, when cover plate 6 enters axle 2, extrusion block 9 compresses first spring 8, after cover plate 6 enters axle 2, first spring 8 resets, drives extrusion block 9 to return to the original position and enter into extrusion groove 5, extruding sealing washer 4, prevent the gap between axle 1 and oil seal 2, enhance the practicability of sealing washer 4.

[0025] The utility model has been described in detail above in connection with the drawings, but the utility model is not limited to the above-mentioned embodiment, within the knowledge scope possessed by ordinary skilled in the art, still can make various changes without departing from the purpose of the utility model.

Claims

1. A skeleton oil seal limiting device, comprising a shaft member (1) and an oil seal (2), characterized in that, The oil seal (2) is provided with a groove (3) on one side, the inside of the groove (3) is provided with a sealing gasket (4), the outer side wall of the sealing gasket (4) is provided with a plurality of extrusion grooves (5), one side of the oil seal (2) is provided with a cover plate (6); The inner wall of the cover plate (6) is fixedly connected with a plurality of groups of first springs (8), one end of the first spring (8) is fixedly connected with an extrusion block (9), one side of the sealing gasket (4) is provided with a plurality of plug-in grooves (10), the two sides of the plug-in groove (10) are provided with mounting grooves (11), the inside of the mounting groove (11) is fixedly connected with a second spring (12), one end of the second spring (12) is fixedly connected with a fixed protrusion (13), one side of the cover plate (6) is fixedly connected with a plurality of plug-in blocks (14), the two end faces of the plug-in block (14) are provided with fixed grooves (15).

2. The skeleton oil seal limiting device of claim 1, wherein: The surface of the cover plate (6) is threadedly connected with a plurality of bolts (7), the cover plate (6) is fixedly connected with the oil seal (2) through the bolts (7).

3. The skeleton oil seal limiting device of claim 1, wherein: The fixed protrusion (13) is a "hemisphere", and the fixed groove (15) is a "hemispherical groove".

4. The skeleton oil seal stopper device of claim 1, wherein: The shaft member (1) penetrates the cover plate (6), the oil seal (2) and the sealing gasket (4).

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