CN211648805U

CN211648805U - Novel main shaft presss from both sides cloth seal structure

Info

Publication number: CN211648805U
Application number: CN202020165954.9U
Authority: CN
Inventors: 尹士涛; 王亮燕; 刘寅; 闫乐营; 郑兆杰
Original assignee: Nanjing Orientleader Technology Co Ltd
Current assignee: Nanjing Orientleader Technology Co Ltd
Priority date: 2020-02-13
Filing date: 2020-02-13
Publication date: 2020-10-09
Anticipated expiration: 2030-02-13

Abstract

The utility model discloses a novel main shaft presss from both sides cloth seal structure, it includes cloth skeleton, flexible waist, elastic component mounting groove, main lip and vice lip, flexible waist upper end and cloth skeleton fixed connection, the lower extreme is equipped with elastic component mounting groove, main lip and vice lip, install the elastic component who provides radial force for the oil blanket in the elastic component mounting groove, main lip is close to the air side, and vice lip is close to the grease and surveys to main lip is "people" style of calligraphy structure with vice lip, and the clearance constitutes the antifriction space between the two. The waist of the utility model has good flexibility, and the lip can have good following-up performance when the shaft jumps in the radial direction, especially when the radial jumping amount is large, thereby being capable of keeping contact with the shaft constantly; and the auxiliary lip is added to the inner side of the main lip, so that the primary sealing effect is achieved, and meanwhile, the auxiliary lip deforms under the condition of internal pressure and provides radial force for the main lip, so that a better sealing effect is achieved.

Description

Novel main shaft presss from both sides cloth seal structure

Technical Field

The utility model belongs to the bearing seal field, concretely relates to novel main shaft presss from both sides cloth seal structure.

Background

With the rapid development of times, the traditional energy is banned by novel clean energy, the energy development track and law are from high carbon to low carbon, from low efficiency to high efficiency, from clean to clean, from sustainable to sustainable. Renewable clean energy resources such as wind energy and the like are developed and utilized to accord with the track of energy development, the wind power generation main shaft is in a long-term running state, in order to guarantee normal running, a main shaft bearing must be lubricated by lubricating grease, and the conventional sealing structure generally cannot seal the grease to cause grease leakage, so that the service life of the main shaft is shortened, and the use cost is increased.

Disclosure of Invention

An object of the utility model is to provide a novel main shaft presss from both sides cloth seal structure, its sealed main lip department has the lip seal structure of vice lip to the waist is pliable and tough along with the axiality good, has fine sealed effect to solving the big bearing of radial run-out.

In order to achieve the purpose, the utility model adopts the technical proposal that: the utility model provides a novel main shaft presss from both sides cloth seal structure, its includes cloth skeleton, flexible waist, elastic component mounting groove, main lip and vice lip, flexible waist upper end and cloth skeleton fixed connection, the lower extreme is equipped with elastic component mounting groove, main lip and vice lip, install the elastic component who provides radial force for the oil blanket in the elastic component mounting groove, main lip is close to the air side, and vice lip is close to the grease and surveys to main lip is "people" style of calligraphy structure with vice lip, and the clearance constitutes antifriction space between the two.

Furthermore, the cloth framework is used for supporting and preventing follow-up rotation, is hardened by adopting gum dipping cotton cloth through vulcanization, and is assembled in the sealing groove and fixed through a pressing plate.

Furthermore, the flexible waist part, the elastic component mounting groove, the main lip and the auxiliary lip are formed by vulcanizing rubber and are of an integrally formed structure.

Furthermore, the elastic member mounting groove is a spring groove, and the elastic member mounted inside the elastic member mounting groove is a spring.

Furthermore, the main lip is in interference fit with the shaft, and the auxiliary lip is used for assisting the main lip in sealing grease.

Furthermore, the section of the flexible waist part is in a C shape.

Furthermore, the main shaft cloth clamping sealing structure is of an integral or split structure.

The utility model has the advantages that: in the sealing structure, the waist part has good flexibility, and the lip can have good following performance when the shaft jumps in the radial direction, particularly when the radial jumping amount is large, so that the lip can be constantly kept in contact with the shaft. The auxiliary lip is added to the inner side of the main lip, the diameter of the auxiliary lip is smaller than that of the main lip, the primary sealing effect is achieved, the auxiliary lip deforms when the shaft moves in the radial direction, and meanwhile, the auxiliary lip deforms under the condition that the auxiliary lip is pressed in the bearing and provides radial force for the main lip, so that the better sealing effect is achieved.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is a schematic sectional structure of the present invention.

Labeled as: 1-cloth framework, 2-flexible waist, 3-spring groove, 4-main lip, 5-auxiliary lip, 6-shaft and 7-antifriction space.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1, a novel main shaft presss from both sides cloth seal structure, it includes cloth skeleton 1, flexible waist 2, elastic component mounting groove, main lip 4 and vice lip 5, 2 upper ends of flexible waist and 1 fixed connection of cloth skeleton, the lower extreme is equipped with elastic component mounting groove, main lip 4 and vice lip 5, the installation has the elastic component who provides radial force for the oil blanket in the elastic component mounting groove, main lip 4 is close to the air side, and vice lip 5 is close to the grease and surveys to main lip 4 and vice lip 5 are "people" style of calligraphy structure, and the clearance constitutes antifriction space 7 between the two.

In this embodiment, the cloth frame 1 is used for supporting and preventing the following rotation, and is formed by hardening the impregnated cotton cloth through vulcanization and assembling the impregnated cotton cloth in the sealing groove and fixing the impregnated cotton cloth by a pressing plate. The flexible waist part 2, the elastic component mounting groove, the main lip 4 and the auxiliary lip 5 are formed by rubber vulcanization and are of an integrally formed structure. The elastic member mounting groove is a spring groove 3, and the elastic member mounted inside the elastic member mounting groove is a spring. The main lip 4 is in interference fit with the shaft, and the auxiliary lip 5 is used for assisting the main lip 4 in sealing grease. The main shaft cloth clamping sealing structure can be an integral structure or a split structure.

The utility model discloses the theory of operation: one end of the flexible waist is connected with the cloth framework, the other end of the flexible waist is connected with the main lip, the cross section of the flexible waist is in a C shape with the cloth framework, when the shaft makes radial positive jumping, the C-shaped structure can provide rubber for storing the extruded lip part, when the shaft makes radial negative jumping, the C-shaped waist B can be straightened, and the compensation shaft is far away from the gap between the shaft and the seal when the main lip and the auxiliary lip are sealed, so that the flexible waist has excellent shaft following performance and achieves the sealing effect; the auxiliary lip is a 'v' -shaped thin lip formed by vulcanizing rubber, the diameter of the auxiliary lip is smaller than that of the main lip at the inner side of the main lip, the auxiliary lip is firstly contacted with a shaft surface to play a primary sealing effect, and the grease pressure acts on an X surface under the condition of internal pressure, so that the auxiliary lip is tightly attached to the rotating shaft to prevent grease from entering an antifriction space, and the grease leakage caused by the fact that the seal is jacked up by the grease due to the action of the grease on a Y surface is avoided; meanwhile, the auxiliary lip and the main lip are provided with antifriction spaces, so that the contact area between the auxiliary lip and the shaft is small, and the friction force generated by relative motion with the shaft is reduced; the spring in the spring groove provides radial force for the main lip and the auxiliary lip, and a better sealing effect is achieved.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the scope of the present invention in any way, and all technical solutions obtained by using equivalent substitution modes and the like fall within the scope of the present invention.

The utility model discloses the part that does not relate to all is the same with prior art or can adopt prior art to realize.

Claims

1. The utility model provides a novel main shaft presss from both sides cloth seal structure, a serial communication port, including cloth skeleton, flexible waist, elastic component mounting groove, main lip and vice lip, flexible waist upper end and cloth skeleton fixed connection, the lower extreme is equipped with elastic component mounting groove, main lip and vice lip, install the elastic component who provides radial force for the oil blanket in the elastic component mounting groove, main lip is close to the air side, and vice lip is close to the grease and surveys to main lip is "people" style of calligraphy structure with vice lip, and the clearance constitutes antifriction space between the two.

2. The novel spindle clamp cloth sealing structure as claimed in claim 1, wherein the cloth frame is used for supporting and preventing follow-up rotation, is made of impregnated cotton cloth, is cured through vulcanization, is assembled in the sealing groove, and is fixed through a pressing plate.

3. The novel main shaft cloth clamping sealing structure as claimed in claim 1, wherein the flexible waist portion, the elastic member mounting groove, the main lip and the auxiliary lip are formed by vulcanizing rubber and are of an integrally molded structure.

4. The novel main shaft cloth clamping sealing structure as claimed in claim 1, wherein the elastic member mounting groove is a spring groove, and the elastic member mounted inside is a spring.

5. The novel main shaft cloth clamping sealing structure as claimed in claim 1, wherein the main lip is in interference fit with the shaft, and the auxiliary lip is used for assisting the main lip in sealing grease.

6. The novel main shaft cloth clamping sealing structure as claimed in claim 1, wherein the flexible waist portion has a C-shaped cross section.

7. The novel spindle cloth clamping and sealing structure as claimed in claim 1, wherein the spindle cloth clamping and sealing structure is an integral or split structure.