CN202833989U - Sealing device for transmission shaft - Google Patents

Abstract

The utility model discloses a sealing device for a transmission shaft. The transmission shaft is sequentially connected with an oil thrower, an end cap, a pressure plate and a securing ring in a sleeving manner from the interior of a case body outside, and the oil thrower, the end cap, the pressure plate and the securing ring are arranged on the case body in a penetrating manner. The end cap is connected with the transmission shaft in a sleeving manner by the securing ring, and a framework oil seal is arranged on a sleeving connection face between the securing ring and the transmission shaft. With the adoption of a structure of the oil thrower together with the framework oil seal, no-leakage and long-term reliable operation of the transmission shaft is ensured; when the sealing device is in use and the transmission shaft rotates, a large number of lubricating media are blocked by the oil thrower; traces of infiltrated media are obstructed by the framework oil seal, so that a mechanical oil supply housing has no lubricating medium leakage at the transmission shaft part; and the sealing device is simple in structure and good in sealing effect and can be widely used in various occasions.

Description

A transmission shaft sealing device

technical field

The utility model relates to a reducer sealing device, in particular to a reducer drive shaft sealing device. the

Background technique

The main sealing method of the traditional transmission shaft is mechanical seal, which uses bolts to compress the oil seal in the gland, and the oil seal is directly set on the outer circle of the transmission shaft. The friction between the oil seal and the transmission shaft will cause heat and wear, which will accelerate the aging of the oil seal and shorten the service life of the oil seal. It is easy to cause leakage and poor sealing performance. the

Contents of the invention

Aiming at the deficiencies of the prior art, the technical problem to be solved by the utility model is to provide a transmission shaft sealing device with simple structure, good sealing effect and long service life. the

In order to solve the above-mentioned technical problems, the technical solution adopted by the utility model is: a transmission shaft sealing device, which is characterized in that: the transmission shaft is sequentially sleeved with an oil throwing pan and an end mounted on the box body from the box body to the outside. Cover, pressure plate and fastening ring. the

Further, a skeleton oil seal is provided on the sleeve surface of the end cover and the transmission shaft. the

Still further, the end cover is sleeved on the transmission shaft through the fastening ring, and a skeleton oil seal is provided on the joint surface of the fastening ring and the transmission shaft. the

The utility model adopts the structure of an oil throwing pan and a skeleton oil seal, which ensures no leakage of the transmission shaft and long-term reliable operation. When in use, when the transmission shaft rotates, a large amount of lubricating medium is blocked by the oil throwing pan, and a small amount seeps through. The oil medium is blocked by the skeleton oil seal, so as to ensure that the mechanical oil supply shell does not leak the lubricating medium from the transmission shaft. It has a simple structure and good sealing effect, and is widely used in various occasions. the

Description of drawings

Fig. 1 is the structural representation of the utility model;

In the figure: box body 1, transmission shaft 2, oil throwing pan 3, end cover 4, skeleton oil seal 5, pressure plate 6, fastening ring 7. the

Detailed ways

The specific embodiment of the utility model will be further described below in conjunction with the accompanying drawings. the

As shown in FIG. 1 , a transmission shaft sealing device includes an oil flinger 3 , an end cover 4 , a skeleton oil seal 5 , a pressure plate 6 and a fastening ring 7 . The transmission shaft 2 is supported on the box body 1 through bearings, and the outer circle of the transmission shaft 2 from the bearing to the outside is sequentially sleeved with an oil throwing pan 3, an end cover 4, a skeleton oil seal 5, a pressure plate 6 and a fastening ring 7, and the end cover 4 Cover the oil thrower 3 in the box body 1, the oil thrower 3 is fastened on the transmission shaft 2 through the fastening ring 7, and the skeleton oil seal 5 is arranged between the end cover 4 and the fastening ring 7, and the end cover 4 It is pressed on the box body 1 through the pressing plate 6 . the

Claims (3)

1. sealed device for drive-shaft is characterized in that: transmission shaft is by outwards being socketed with successively disc, end cap, pressing plate and the retaining ring that is arranged on the casing in the casing.

2. a kind of sealed device for drive-shaft according to claim 1, it is characterized in that: end cap and driving sleeve junction are provided with outside framework oil seal.

3. a kind of sealed device for drive-shaft according to claim 1, it is characterized in that: end cap is socketed on the transmission shaft through retaining ring, and retaining ring and driving sleeve junction are provided with outside framework oil seal.

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