CN212616215U

CN212616215U - Speed reducer output shaft oil seal

Info

Publication number: CN212616215U
Application number: CN202020999532.1U
Authority: CN
Inventors: 叶翔; 章晶
Original assignee: Jiangsu Xingsheng Reducer Co ltd
Current assignee: Jiangsu Xingsheng Reducer Co ltd
Priority date: 2020-06-04
Filing date: 2020-06-04
Publication date: 2021-02-26
Anticipated expiration: 2030-06-04

Abstract

The utility model discloses a speed reducer output shaft oil seal, which comprises an upper fixing ring and a lower fixing ring, wherein the upper fixing ring is arranged at the upper end of the lower fixing ring, the lower fixing ring and the upper fixing ring are fixedly connected through a locking connection device, a sealing ring is arranged inside the lower fixing ring outside the sealing ring, a lower alignment ring is arranged inside the lower fixing ring, an upper alignment ring is arranged inside the upper fixing ring, through designing a novel speed reducer output shaft oil seal, a stainless steel shell outside the oil seal is connected and divided into two parts through the locking connection device, the stainless steel shell can be very conveniently disassembled into two parts through a connecting nut, the sealing ring inside the shell can be very conveniently replaced, the joint of the two parts of the stainless steel shell is provided with a lug and an alignment block, and the sealing effect of the joint of the stainless steel is also very good through the buckling connection mode, the problem of oil leakage from the joint does not occur.

Description

Speed reducer output shaft oil seal

Technical Field

The utility model belongs to the technical field of the oil blanket is relevant, concretely relates to speed reducer output shaft oil blanket.

Background

An oil seal is a common name of a sealing element, namely a lubricating oil seal, and is a mechanical element for sealing grease (oil is the most common liquid substance in a transmission system and also generally refers to the common liquid substance), and is used for isolating a part needing lubrication in a transmission part from a force-applying part so as not to allow lubricating oil to leak, and the sealing element for static sealing and dynamic sealing (generally reciprocating motion) is called an oil seal.

The existing speed reducer output shaft oil seal technology has the following problems: output shaft reciprocating motion when using and between the oil blanket can produce a large amount of heats, and work can influence the leakproofness of oil blanket under overheated environment for a long time, so use one end time just need change the oil blanket, but traditional oil blanket change all directly throws away and trades newly, installs new sealing washer inside very inconvenient at stainless steel shell, and intercommunication stainless steel shell is changed together and can be led to the fact the waste to stainless steel shell's use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a speed reducer output shaft oil blanket to the sealing washer is inconvenient when renewing in solving above-mentioned background art takes out from stainless steel shell is inside, trades the extravagant problem of cost together with stainless steel shell.

In order to achieve the above object, the utility model provides a following technical scheme: an output shaft oil seal of a speed reducer comprises an upper fixing ring and a lower fixing ring, wherein the upper end of the lower fixing ring is provided with the upper fixing ring, the lower fixing ring and the upper fixing ring are fixedly connected through a locking connecting device, a sealing ring is arranged in the lower fixing ring, a lower alignment ring is arranged in the lower fixing ring outside the sealing ring, an upper alignment ring is arranged in the upper fixing ring, the locking and connecting device comprises a connecting nut, a convex block and a positioning block, the connecting nut is arranged in the front end of the lower fixing ring, the outer wall of the rear end of the connecting nut penetrates through the lower alignment ring and is arranged inside the upper alignment ring, the convex block is arranged on the outer wall of the upper end of the lower alignment ring, the alignment block is arranged on the outer wall of the lower end of the upper alignment ring, and the lower alignment ring is fixedly connected with the alignment block through a bump and fixedly connected with the outer wall of the lower end of the upper alignment ring.

Preferably, locking connection device is provided with two altogether, two locking connection device sets up respectively on solid fixed ring's the front end left and right sides outer wall down, gu fixed ring passes through two locking connection device and solid fixed ring fixed connection on the last.

Preferably, the inner and outer walls of the lower fixing ring and the upper fixing ring are smooth walls, and the outer wall of the sealing ring can be completely attached to the inner walls of the lower fixing ring and the upper fixing ring.

Preferably, a connector is arranged inside the front end outer wall of the lower fixing ring, the connecting nut is fixedly connected with the lower fixing ring through the connector, and the front end outer wall of the connecting nut and the front end outer wall of the lower fixing ring are located on the same vertical plane.

Preferably, the inner wall of the sealing ring is provided with two layers of sealing lips, and the sealing ring is synthesized by rubber macromolecules.

Preferably, a threaded opening is formed in the front end of the upper alignment ring, and the upper alignment ring is in threaded connection with the connecting nut through the threaded opening.

Compared with the prior art, the utility model provides a speed reducer output shaft oil blanket possesses following beneficial effect:

the utility model discloses a design a novel speed reducer output shaft oil seal, the stainless steel shell outside the oil seal is connected through the locking connecting device and is divided into two parts, can dismantle the stainless steel shell into two parts very conveniently through the coupling nut, change the sealing washer inside the shell very conveniently, the two parts junction of stainless steel shell is provided with lug and counterpoint piece, the sealed effect of the junction of stainless steel is also very good for the buckle type connected mode, the problem of oil leak from the junction can not appear, when using, put the sealing washer inside the lower fixed ring, cup joint the upper fixed ring on the upper end of the lower fixed ring, and through counterpoint piece and lug counterpoint connection, insert the coupling nut inside the front end of the lower fixed ring, screw up the coupling nut and can connect the upper fixed ring and the lower fixed ring together firmly, when needing to dismantle, screw down the coupling nut and take off the upper fixed ring from the lower fixed ring, the advantage of doing so is, can change the inside sealing washer of stainless steel shell very conveniently when renewing, makes the use of this novel speed reducer output shaft oil blanket become more convenient through locking connection device.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:

fig. 1 is a schematic view of a three-dimensional structure of an output shaft oil seal of a speed reducer provided by the utility model;

fig. 2 is a schematic view of a front tangent plane structure of an output shaft oil seal of a speed reducer provided by the utility model;

fig. 3 is a schematic side view of an oil seal of an output shaft of a speed reducer according to the present invention;

fig. 4 is a schematic side view of the locking connection device according to the present invention;

in the figure: 1. an upper fixing ring; 2. locking the connecting device; 3. a lower fixing ring; 4. a seal ring; 5. a connecting nut; 6. a lower alignment ring; 7. a bump; 8. a positioning block; 9. and an upper alignment ring.

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.

Referring to fig. 1-4, the present invention provides a technical solution: an output shaft oil seal of a speed reducer comprises an upper fixing ring 1 and a lower fixing ring 3, wherein the upper fixing ring 1 is installed at the upper end of the lower fixing ring 3, the lower fixing ring 3 and the upper fixing ring 1 are fixedly connected through two locking connection devices 2, the two locking connection devices 2 are arranged, the two locking connection devices 2 are respectively arranged on the left and right outer walls of the front end of the lower fixing ring 3, the lower fixing ring 3 is fixedly connected with the upper fixing ring 1 through the two locking connection devices 2, the two sides of the lower fixing ring 3 are fixedly connected with the upper fixing ring 1 through the two locking connection devices 2, the problem that the upper fixing ring 1 and the lower fixing ring 3 are loosened is prevented, a sealing ring 4 is arranged inside the lower fixing ring 3, two layers of sealing lips are arranged on the inner wall of the sealing ring 4, the sealing ring 4 is synthesized through rubber macromolecules, the sealing effect of, the interior outer wall of lower fixed ring 3 and upper fixed ring 1 is smooth wall, and the outer wall of sealing washer 4 can laminate completely with the inner wall of lower fixed ring 3 and upper fixed ring 1, and sealing washer 4 fills in the inside of lower fixed ring 3 and upper fixed ring 1 completely for sealing washer 4 can paste when reciprocating motion on the output shaft tightly on the output shaft, and the lower fixed ring 3 inside in the sealing washer 4 outside is provided with down counterpoint ring 6.

An oil seal of an output shaft of a speed reducer, an upper contraposition ring 9 is arranged inside an upper fixing ring 1, a threaded opening is arranged inside the front end of the upper contraposition ring 9, the upper contraposition ring 9 is in threaded connection with a connecting nut 5 through the threaded opening, the internal thread of the threaded opening and the connecting nut 5 can be tightly connected, so that the upper fixing ring 1 is tightly connected with a lower fixing ring 3, a locking connection device 2 comprises a connecting nut 5, a convex block 7 and a contraposition block 8, the connecting nut 5 is arranged inside the front end of the lower fixing ring 3, a connecting opening is arranged inside the outer wall of the front end of the lower fixing ring 3, the connecting nut 5 is fixedly connected with the lower fixing ring 3 through the connecting opening, the outer wall of the front end of the connecting nut 5 and the outer wall of the front end of the lower fixing ring 3 are in the same vertical plane, therefore, the connecting nut 5 cannot protrude out of the front end of the lower fixing ring 3 to influence the use of the lower, the lug 7 is arranged on the outer wall of the upper end of the lower aligning ring 6, the aligning block 8 is arranged on the outer wall of the lower end of the upper aligning ring 9, and the lower aligning ring 6 is fixedly connected with the outer wall of the lower end of the upper aligning ring 9 through the lug 7 and the aligning block 8.

The utility model discloses a theory of operation and use flow: the utility model discloses install the back, this novel speed reducer output shaft oil blanket's theory of operation is because there is the oil film of oil blanket blade control between oil blanket and axle, and this oil film has the fluid lubrication characteristic. Under the action of the surface tension of the liquid, the rigidity of the oil film just enables the oil film and an air contact end to form a meniscus, so that leakage of a working medium is prevented, and sealing of a rotating shaft is achieved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a speed reducer output shaft oil blanket, includes upper fixed ring (1) and lower fixed ring (3), its characterized in that: the upper fixing ring (1) is installed at the upper end of the lower fixing ring (3), the lower fixing ring (3) and the upper fixing ring (1) are fixedly connected through a locking connection device (2), a sealing ring (4) is arranged inside the lower fixing ring (3) outside the sealing ring (4), a lower aligning ring (6) is arranged inside the upper fixing ring (1), an upper aligning ring (9) is arranged inside the upper fixing ring (1), the locking connection device (2) comprises a connecting nut (5), a lug (7) and an aligning block (8), the connecting nut (5) is arranged inside the front end of the lower fixing ring (3), the outer wall of the rear end of the connecting nut (5) penetrates through the lower aligning ring (6) and is arranged inside the upper aligning ring (9), the lug (7) is arranged on the outer wall of the upper end of the lower aligning ring (6), the aligning block (8) is arranged on the outer wall of the lower end of the upper aligning ring (9), the lower alignment ring (6) is fixedly connected with the alignment block (8) through a bump (7) and is fixedly connected with the outer wall of the lower end of the upper alignment ring (9).

2. The speed reducer output shaft oil seal of claim 1, wherein: locking connection device (2) are provided with two altogether, two locking connection device (2) set up respectively on the front end left and right sides outer wall of lower fixed ring (3), lower fixed ring (3) are through two locking connection device (2) and upper fixed ring (1) fixed connection.

3. The speed reducer output shaft oil seal of claim 1, wherein: the interior outer wall of lower fixed ring (3) and upper fixed ring (1) is smooth wall, the outer wall of sealing washer (4) can laminate completely with the inner wall of lower fixed ring (3) and upper fixed ring (1).

4. The speed reducer output shaft oil seal of claim 1, wherein: the inside connector that is provided with of the front end outer wall of lower fixed ring (3), coupling nut (5) are through connector and lower fixed ring (3) fixed connection, the front end outer wall of coupling nut (5) and the front end outer wall of lower fixed ring (3) are in same vertical face.

5. The speed reducer output shaft oil seal of claim 1, wherein: two layers of sealing lips are arranged on the inner wall of the sealing ring (4), and the sealing ring (4) is synthesized by rubber polymers.

6. The speed reducer output shaft oil seal of claim 1, wherein: a threaded opening is formed in the front end of the upper alignment ring (9), and the upper alignment ring (9) is in threaded connection with the connecting nut (5) through the threaded opening.