CN112096872A - Agricultural machinery sealing ring - Google Patents

Abstract

The invention discloses an agricultural machinery sealing ring and an agricultural machinery with the same, wherein the agricultural machinery sealing ring comprises a rotating shaft which is arranged in a mounting hole; the shaft sleeve is sleeved on the rotating shaft, and the outer side of the shaft sleeve abuts against the inner wall of the mounting hole; the outer oil seal comprises an oil seal framework, an axial dustproof lip and a radial dustproof lip are arranged on the oil seal framework, and the axial dustproof lip and the radial dustproof lip are matched with the outer end face of the shaft sleeve to complete sealing. An axial dustproof lip is added between the shaft sleeve and the outer oil seal, the axial dustproof lip is not affected by the installation eccentricity and the shaft runout of the agricultural machine, the sealing capacity of the sealing ring is improved, the axial dustproof capacity is added, leakage of lubricating oil is prevented, the maintenance times and time of the agricultural machine are reduced, and the working efficiency and the service life of the agricultural machine are improved.

Description

Agricultural machinery seal

technical field

The invention relates to the field of agricultural machinery seals, in particular to an agricultural machinery sealing ring.

Background technique

Agricultural machinery is in poor working condition and needs to work in muddy water and soil for a long time. At present, similar sealing rings on the market only have two dust-proof lips, and the reliability is low. It is difficult for the dust-proof lip to meet the sealing requirements of large vibration and large beating eccentricity. External muddy water and fine stone sand can easily invade and damage the rubber, resulting in the leakage of internal lubricating oil, which makes the agricultural machinery unable to operate normally and needs to be shut down for maintenance, which affects the work efficiency and the performance of the agricultural machinery. quality.

SUMMARY OF THE INVENTION

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the present invention proposes an agricultural machinery sealing ring, which can prevent the leakage of lubricating oil, reduce the maintenance frequency and time of the agricultural machinery, and improve the working efficiency and the life of the agricultural machinery.

The present invention also provides an agricultural machine with the above-mentioned agricultural machine sealing ring.

The agricultural machinery sealing ring according to the embodiment of the first aspect of the present invention includes: a rotating shaft, the rotating shaft is arranged in the installation hole; a shaft sleeve, the shaft sleeve is sleeved on the rotating shaft; an outer oil seal, the outer oil seal includes an oil seal skeleton , the oil seal skeleton is provided with an axial dustproof lip and a radial dustproof lip, and the axial dustproof lip and the radial dustproof lip cooperate with the outer end face of the shaft sleeve to complete seal.

The agricultural machinery sealing ring according to the embodiment of the present invention has at least the following beneficial effects: an axial dustproof lip is added between the shaft sleeve and the outer oil seal, and the axial dustproof lip is not affected by the installation eccentricity of the agricultural machinery and the amount of shaft runout It improves the sealing ability of the sealing ring, adds the axial dustproof ability, prevents the leakage of lubricating oil, reduces the maintenance frequency and time of agricultural machinery, and improves the working efficiency and the life of agricultural machinery.

According to some embodiments of the present invention, the oil seal frame includes a fixed section and a bent section, the fixed section is fixed on the outer side of the outer oil seal, and the included angle between the bent section and the fixed section is an acute angle. The oil seal skeleton is bent in the opposite direction of the axial dust lip, and the outer oil seal skeleton is changed from the ordinary "L" shape to a bent structure, freeing up space for the installation of the end face sealing lip, and the outer After the oil seal is changed to a bending skeleton, the amount of rubber used is greatly reduced, and the cost of raw materials is reduced.

According to some embodiments of the present invention, the outer side of the shaft sleeve is provided with a shaft sleeve lip extending outward along the shaft sleeve, and the shaft sleeve lip abuts on the inner wall to adjust the structure of the shaft sleeve, The bushing lip is added on the outside of the bushing, which improves the sealing ability of the bushing in the limited installation space.

According to some embodiments of the present invention, there is an interference fit between the lip of the shaft sleeve and the inner wall of the installation hole, so that the sealing and fixing effect is good, and it is not easy to fall off and leak.

According to some embodiments of the present invention, the oil seal frame is provided with a plurality of the radial dust-proof lips, and the provision of the plurality of radial dust-proof lips can further improve the sealing ability of the outer oil seal in the radial direction and improve the sealing performance. sealing effect of the ring.

According to some embodiments of the present invention, there is an interference fit between the radial dust lip and the rotating shaft, the sealing and fixing effect is good, and it is not easy to fall off and leak.

According to some embodiments of the present invention, the outer oil seal is further provided with an axial locating rib, the axial locating rib abuts against the shaft sleeve in the axial direction, and the axial locating rib is used for the positioning of the outer oil seal to ensure The axial relative position of the outer oil seal after being assembled with the shaft sleeve is accurate.

According to some embodiments of the present invention, the outer oil seal is further provided with an oil seal lip, the oil seal lip abuts on the shaft sleeve in the radial direction, and the oil seal lip plays a role in preventing the leakage of lubricating oil.

According to some embodiments of the present invention, a spring is provided on the outside of the oil seal lip to increase the holding force of the oil seal lip on the rotating shaft, and the pressure of the spring increases the holding force of the lip on the shaft, so that the oil seal Reliable sealing.

The agricultural machine according to the embodiment of the second aspect of the present invention includes the agricultural machine sealing ring described in the above embodiments.

The agricultural machinery according to the embodiment of the present invention has at least the following beneficial effects: an axial dustproof lip is added between the shaft sleeve and the outer oil seal in the sealing ring, and the axial dustproof lip is not affected by the installation eccentricity of the agricultural machinery and the amount of shaft runout It improves the sealing ability of the sealing ring, adds the axial dustproof ability, prevents the leakage of lubricating oil, reduces the maintenance frequency and time of agricultural machinery, and improves the working efficiency and the life of agricultural machinery.

Additional aspects and advantages of the present invention will be set forth, in part, from the following description, and in part will be apparent from the following description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of embodiments taken in conjunction with the accompanying drawings, wherein:

FIG. 1 is a schematic diagram of an agricultural machinery sealing ring according to an embodiment of the first aspect of the present invention.

Detailed ways

The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, only used to explain the present invention, and should not be construed as a limitation of the present invention.

In the description of the present invention, it should be understood that the azimuth description, such as the azimuth or position relationship indicated by up, down, front, rear, left, right, etc., is based on the azimuth or position relationship shown in the drawings, only In order to facilitate the description of the present invention and simplify the description, it is not indicated or implied that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description of the present invention, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, exceeding, etc. are understood as not including this number, above, below, within, etc. are understood as including this number. If it is described that the first and the second are only for the purpose of distinguishing technical features, it cannot be understood as indicating or implying relative importance, or indicating the number of the indicated technical features or the order of the indicated technical features. relation.

In the description of the present invention, unless otherwise clearly defined, words such as setting, installation, connection should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

Referring to FIG. 1, the agricultural machinery sealing ring according to the first aspect of the present invention includes: a rotating shaft 100, which is arranged in the installation hole; The shaft sleeve 200 is sleeved on the rotating shaft 100, a layer of rubber sealing body is arranged between the shaft sleeve 200 and the rotating shaft 100, the outer side of the shaft sleeve 200 abuts on the inner wall 400 of the installation hole; the outer oil seal 300, the The outer oil seal 300 includes an oil seal skeleton 310, which is provided with an axial dustproof lip 320 and a radial dustproof lip 330, the axial dustproof lip 320 and the radial dustproof lip 330 cooperates with the outer end surface of the shaft sleeve 200 to complete the sealing, and a rubber sealing body is arranged between the outer oil seal 300 and the inner wall 400 .

The agricultural machinery sealing ring according to the embodiment of the present invention has at least the following beneficial effects: an axial dustproof lip 320 is added between the shaft sleeve 200 and the outer oil seal 300, and the axial dustproof lip 320 is not subject to the eccentric installation of the agricultural machinery Influenced by the shaft runout, the sealing ability of the sealing ring is improved, the axial dustproof ability is added, the leakage of lubricating oil is prevented, the maintenance frequency and time of the agricultural machinery are reduced, and the work efficiency and the life of the agricultural machinery are improved.

According to some embodiments of the present invention, the oil seal frame 310 includes a fixing section 311 and a bending section 312 , the fixing section 311 is fixed on the outer side of the outer oil seal 310 , and the bending section 312 and the fixing section 311 The included angle between them is an acute angle, the bending section 312 of the oil seal frame 310 is bent in the opposite direction of the axial dustproof lip 320, and the bending section 312 frame is changed from an ordinary "L" shape to a bent one. structure, freeing up space for the installation of end face sealing lip, and after the outer oil seal 300 is changed to a bent skeleton, the amount of rubber used and the cost of raw materials are greatly reduced.

According to some embodiments of the present invention, the outer side of the bushing 200 is provided with a bushing lip 210 extending outward along the bushing 200 . The structure of the shaft sleeve 200 is adjusted, and a shaft sleeve lip 210 is added to the outer side of the shaft sleeve 200 to improve the sealing ability of the shaft sleeve 200 in a limited installation space. The metal shaft sleeve skeleton is treated by phosphating and gluing process, and the inner diameter sealing rubber body and the shaft sleeve lip 210 are integrally vulcanized with the rubber in the mold.

According to some embodiments of the present invention, there is an interference fit between the bushing lip 210 and the inner wall 400 of the mounting hole, the sealing and fixing effect is good, and it is not easy to fall off and leak.

According to some embodiments of the present invention, the oil seal frame 310 is provided with a plurality of the radial dustproof lips 330, and the provision of the plurality of radial dustproof lips 330 can further improve the sealing ability of the outer oil seal 300 in the radial direction , to improve the sealing effect of the sealing ring.

According to some embodiments of the present invention, the radial dust-proof lip 330 and the rotating shaft 100 are in an interference fit, so that the sealing and fixing effect is good, and it is not easy to fall off and leak.

According to some embodiments of the present invention, the outer oil seal 300 is further provided with an axial positioning rib 340, the axial positioning rib 340 abuts against the edge of the shaft sleeve 200 in the axial direction, and the axial positioning rib 340 is used for Due to the positioning of the outer oil seal 300 , the accurate axial relative position of the outer oil seal 300 after being assembled with the shaft sleeve 200 is ensured.

According to some embodiments of the present invention, the outer oil seal 300 is further provided with an oil seal lip 350, the oil seal lip 350 abuts on the shaft sleeve 200 in the radial direction, and the oil seal lip 350 prevents the leakage of lubricating oil effect.

According to some embodiments of the present invention, a spring 360 is provided on the outside of the oil seal lip 350 to increase the holding force of the oil seal lip 350 on the rotating shaft 100 , and the pressure of the spring 360 improves the holding force of the lip on the shaft force to make the oil seal reliable.

The agricultural machine according to the embodiment of the second aspect of the present invention includes the agricultural machine sealing ring described in the above embodiments.

The agricultural machinery according to the embodiment of the present invention has at least the following beneficial effects: an axial dustproof lip 320 is added between the shaft sleeve 200 and the outer oil seal 300 in the sealing ring, and the axial dustproof lip 320 is not subject to the eccentric installation of the agricultural machinery. Influenced by the shaft runout, the sealing ability of the sealing ring is improved, the axial dustproof ability is added, the leakage of lubricating oil is prevented, the maintenance frequency and time of the agricultural machinery are reduced, and the work efficiency and the life of the agricultural machinery are improved.

The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments. Within the scope of knowledge possessed by those of ordinary skill in the technical field, various modifications can be made without departing from the purpose of the present invention. kind of change.

Claims (10)

1. The utility model provides an agricultural machinery sealing washer, the pivot is located to the cover, the pivot sets up in the mounting hole, its characterized in that includes:

the shaft sleeve is sleeved on the rotating shaft;

the outer oil seal comprises an oil seal framework, an axial dustproof lip and a radial dustproof lip are arranged on the oil seal framework, and the axial dustproof lip and the radial dustproof lip are matched with the outer end face of the shaft sleeve to complete sealing.

2. The agricultural machine seal ring according to claim 1, wherein: the oil blanket skeleton includes canned paragraph and bending segment, the canned paragraph is fixed in the outside of outer oil blanket, bending segment with contained angle between the canned paragraph is the acute angle.

3. The agricultural machine seal ring according to claim 1, wherein: the outer side of the shaft sleeve is provided with a shaft sleeve lip which extends outwards along the shaft sleeve.

4. The agricultural machine seal ring according to claim 3, wherein: the shaft sleeve lip is in interference fit with the inner wall of the mounting hole.

5. The agricultural machine seal ring according to claim 1, wherein: the oil seal framework is provided with a plurality of radial dustproof lips.

6. The agricultural machine seal ring according to claim 1 or 5, wherein: the radial dustproof lip is in interference fit with the rotating shaft.

7. The agricultural machine seal ring according to claim 1, wherein: the outer oil seal is further provided with an axial positioning rib, and the axial positioning rib is abutted to the shaft sleeve in the axial direction.

8. The agricultural machine seal ring according to claim 1, wherein: and an oil seal lip is also arranged on the outer oil seal and is abutted against the shaft sleeve in the radial direction.

9. The agricultural machine seal ring of claim 8, wherein: and a spring is arranged on the outer side of the oil seal lip.

10. An agricultural machine, its characterized in that: comprising an agricultural machine seal ring according to any one of claims 1 to 9.

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