CN204187004U - A kind of shaft seal structure for speed reducer - Google Patents
A kind of shaft seal structure for speed reducer Download PDFInfo
- Publication number
- CN204187004U CN204187004U CN201420576606.5U CN201420576606U CN204187004U CN 204187004 U CN204187004 U CN 204187004U CN 201420576606 U CN201420576606 U CN 201420576606U CN 204187004 U CN204187004 U CN 204187004U
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- CN
- China
- Prior art keywords
- speed reducer
- shaft seal
- end cap
- spring seat
- axis body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a kind of shaft seal structure for speed reducer, between its axis body being arranged on speed reducer axial end and end cap, it is characterized in that, this shaft seal structure being used for speed reducer comprises: stationary components, it is sheathed between described axis body and end cap, and is fixed on described end cap; Swivel assembly, it is sheathed between described axis body and end cap, and is fixed on described axis body, and one end and described stationary components offset.Its advantage is: adopt anti-axle to alter floating comprehensive shaft seal design, and make the connection of shaft seal and speed reducer end cap and shaft seal and axis body be all static seal, shaft seal body does relative motion, and avoids generation between the end cap of speed reducer and axis body and has a contest, enhance sealing.
Description
Technical field
The utility model relates to braking technique field, is specifically related to a kind of shaft seal structure for speed reducer.
Background technique
C2AB belt conveyer unloads in seam at current coal handling system and is widely used, and coal is all transported to coal yard by it from harbour ship unloaders, and the transport single channel total length of this kind of C2AB belt conveyer can reach 3700m, and every road belt is all furnished with multiple stage speed reducer.
But; when speed reducer real-world operation; there is the oil leakage phenomenon of speed reducer axis body (described axis body can be the high speed shaft of speed reducer or lower velocity shaft) axial end; the sealing means of what its reason was to adopt between the axis body of every platform speed reducer and speed reducer end cap is outside framework oil seal; especially sealing effect that is poor in operating mode or oil sealing when running up is deteriorated; to such an extent as to need frequent shutdown to refuel; oil product, once supply is not in time also by causing the too low bearing burnt caused of oil level, affects the stable operation of coal handling system.
As can be seen here, stopping the leakage of oil hidden danger of speed reducer axial end, is the problem that those skilled in the art need solution badly.
Model utility content
The purpose of this utility model is to provide a kind of shaft seal structure for speed reducer, can improve the sealing of axial end, avoid axial end leakage of oil.
In order to achieve the above object, the utility model is achieved through the following technical solutions:
For a shaft seal structure for speed reducer, it is arranged between the axis body of speed reducer and end cap, it is characterized in that, this shaft seal structure being used for speed reducer comprises:
Stationary components, it is sheathed between described axis body and end cap, and is fixed on described end cap;
Swivel assembly, it is sheathed between described axis body and end cap, and is fixed on described axis body, and one end and described stationary components offset, and makes to form sealing between end cap and axis body, avoids axis body to produce with end cap in the running simultaneously and has a contest.
The above-mentioned shaft seal structure for speed reducer, wherein: between described axis body outer wall and described swivel assembly internal face, be provided with back-up ring.
The above-mentioned shaft seal structure for speed reducer, wherein, described stationary components comprises:
Stationary ring, it is sheathed between described axis body and end cap, and is fixed on described end cap;
Packing ring, it is sheathed between described end cap and stationary ring, fixed static ring.
The above-mentioned shaft seal structure for speed reducer, wherein:
Described stationary ring adopts Langaloy material to make.
The above-mentioned shaft seal structure for speed reducer, wherein, described swivel assembly comprises:
Spring seat, it comprises axle sleeve and is located at the shaft shoulder in the outer wall of described axle sleeve one end; Described spring socket sleeve is located between described axis body and end cap, and is fixed on described axis body;
Rotating ring group, it is sheathed between described spring seat axle sleeve and end cap, and one end is fixedly connected with the shaft shoulder of described spring seat, and its other end and described stationary components offset.
The above-mentioned shaft seal structure for speed reducer, wherein, this shaft seal structure being used for speed reducer also comprises:
Cock screw, spring seat, through the described spring seat shaft shoulder, is fixed on axis body by it.
The above-mentioned shaft seal structure for speed reducer, wherein, described rotating ring group comprises:
Cutting ferrule, it is sheathed between described spring seat axle sleeve and end cap, and inner wall surface thereof contacts with described spring seat axle sleeve outer wall, and one end is fixedly connected with the shaft shoulder of described spring seat;
Movable sheath, it is sheathed on outside described spring seat axle sleeve, and inner wall surface thereof contacts with described spring seat axle sleeve outer wall, and one end and described cutting ferrule offset, and its other end and described stationary components offset.
The above-mentioned shaft seal structure for speed reducer, wherein, this shaft seal structure being used for speed reducer also comprises:
Transmission screw, is connected and fixed by described transmission screw between described cutting ferrule and the spring seat shaft shoulder.
The above-mentioned shaft seal structure for speed reducer, wherein, this shaft seal structure being used for speed reducer also comprises:
Elastic component, it is located between described cutting ferrule and the spring seat shaft shoulder, and its side and described cutting ferrule offset, and its opposite side and the described spring seat shaft shoulder offset.
The above-mentioned shaft seal structure for speed reducer, wherein: between described cutting ferrule internal face and described spring seat axle sleeve outer wall, be provided with back-up ring.
The utility model compared with prior art has the following advantages:
1, anti-axle is adopted to alter floating comprehensive shaft seal design, the connection of shaft seal and speed reducer end cap and shaft seal and axis body is made to be all static seal, shaft seal body does relative motion, and avoids generation between the end cap of speed reducer and axis body and has a contest, enhance sealing;
2, provide internal force Compensation Regulation by elastic component to stationary components and swivel assembly, make the reaction of end cap to axle head situation little, improve Leakage;
3, at high speeds, adopt this shaft seal structure more effectively can reduce surface friction drag, guarantee without relative movement on axis body, eliminate the wearing and tearing to axle journal, improve the reliability of equipment.
Accompanying drawing explanation
Fig. 1 is example structure schematic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, by describing a preferably specific embodiment in detail, the utility model is further elaborated.
For a shaft seal structure for speed reducer, it is arranged between the axis body 5 of speed reducer axial end and end cap, and it comprises: stationary components, and it is sheathed between described axis body 5 and end cap, and is fixed on described end cap; Swivel assembly, it is sheathed between described axis body 5 and end cap, and is fixed on described axis body 5, and one end and described stationary components offset, and make to be formed between end cap and axis body 5 to seal, and avoids axis body 5 to produce with end cap in the running simultaneously and has a contest.
Described stationary components comprises: adopt the stationary ring 2 that Langaloy material is made, it is sheathed between described axis body 5 and end cap, and is fixed on described end cap; L-type packing ring 1, it is sheathed between described end cap and stationary ring 2, fixed static ring 2.
Described swivel assembly comprises: spring seat 7, it comprises axle sleeve and is located at the shaft shoulder in the outer wall of described axle sleeve one end, described spring seat 7 is sheathed between described axis body 5 and end cap, and be fixed on described axis body 5 by 4 interior hexagon concave-end locking screws 9, be provided with O type circle 71 between described axis body 5 outer wall and described spring seat 7 internal face; Rotating ring group, it is sheathed between described spring seat 7 axle sleeve and end cap, and one end is fixedly connected with the shaft shoulder of described spring seat 7, and its other end and described stationary components offset.
Described rotating ring group comprises: cutting ferrule 4, it is sheathed between described spring seat 7 axle sleeve and end cap, inner wall surface thereof contacts with described spring seat 7 axle sleeve outer wall, one end is fixedly connected with by the shaft shoulder of 4 transmission screws 6 with described spring seat 7, is provided with O type circle 41 between described cutting ferrule 4 internal face and described spring seat 7 axle sleeve outer wall; Movable sheath 3, it is sheathed on outside described spring seat 7 axle sleeve, and inner wall surface thereof contacts with described spring seat 7 axle sleeve outer wall, and one end and described cutting ferrule 4 offset, and its other end and described stationary components offset.
The shaft seal structure of described speed reducer also comprises: 16 springs 8, it is located between described cutting ferrule 4 and spring seat 7 shaft shoulder, its side and described cutting ferrule 4 offset, its opposite side and described spring seat 7 shaft shoulder offset, to ensure the engaging force between stationary components and swivel assembly, and uniform force, axle is altered in 1mm axle jumping 0.1mm and is all had not big harm.
The utility model have employed anti-axle and alters floating comprehensive shaft seal design, and make the connection of shaft seal and speed reducer end cap and shaft seal and axis body be all static seal, shaft seal body does relative motion, and avoids to produce between speed reducer end cap and axis body to have a contest, and enhances sealing; There is provided internal force Compensation Regulation by elastic component to stationary components and swivel assembly, make the reaction of end cap to axle head situation little, improve Leakage; At high speeds, adopt this shaft seal structure more effectively can reduce surface friction drag, guarantee without relative movement on axis body, eliminate the wearing and tearing to axle journal, improve the reliability of equipment.
Although content of the present utility model has done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to restriction of the present utility model.After those skilled in the art have read foregoing, for multiple amendment of the present utility model and substitute will be all apparent.Therefore, protection domain of the present utility model should be limited to the appended claims.
Claims (10)
1. for a shaft seal structure for speed reducer, it is arranged between the axis body (5) of speed reducer axial end and end cap, it is characterized in that, this shaft seal structure being used for speed reducer comprises:
Stationary components, it is sheathed between described axis body (5) and end cap, and is fixed on described end cap;
Swivel assembly, it is sheathed between described axis body (5) and end cap, and is fixed on described axis body (5), and one end and described stationary components offset, make to be formed between end cap and axis body (5) to seal, avoid axis body (5) to produce with end cap in the running simultaneously and have a contest.
2., as claimed in claim 1 for the shaft seal structure of speed reducer, it is characterized in that: between described axis body (5) outer wall and described swivel assembly internal face, be provided with back-up ring (71).
3., as claimed in claim 1 for the shaft seal structure of speed reducer, it is characterized in that, described stationary components comprises:
Stationary ring (2), it is sheathed between described axis body (5) and end cap, and is fixed on described end cap;
Packing ring (1), it is sheathed between described end cap and stationary ring (2), fixed static ring (2).
4., as claimed in claim 3 for the shaft seal structure of speed reducer, it is characterized in that:
Described stationary ring (2) adopts Langaloy material to make.
5., as claimed in claim 1 for the shaft seal structure of speed reducer, it is characterized in that, described swivel assembly comprises:
Spring seat (7), it comprises axle sleeve and is located at the shaft shoulder in the outer wall of described axle sleeve one end; Described spring seat (7) is sheathed between described axis body (5) and end cap, and is fixed on described axis body (5);
Rotating ring group, it is sheathed on described spring seat (7) between axle sleeve and end cap, and one end is fixedly connected with the shaft shoulder of described spring seat (7), and its other end and described stationary components offset.
6., as claimed in claim 5 for the shaft seal structure of speed reducer, it is characterized in that, this shaft seal structure being used for speed reducer also comprises:
Cock screw (9), spring seat (7), through described spring seat (7) shaft shoulder, is fixed on axis body (5) by it.
7., as claimed in claim 5 for the shaft seal structure of speed reducer, it is characterized in that, described rotating ring group comprises:
Cutting ferrule (4), it is sheathed on described spring seat (7) between axle sleeve and end cap, and inner wall surface thereof contacts with described spring seat (7) axle sleeve outer wall, and one end is fixedly connected with the shaft shoulder of described spring seat (7);
Movable sheath (3), it is sheathed on outside described spring seat (7) axle sleeve, and inner wall surface thereof contacts with described spring seat (7) axle sleeve outer wall, and one end and described cutting ferrule (4) offset, and its other end and described stationary components offset.
8., as claimed in claim 7 for the shaft seal structure of speed reducer, it is characterized in that, this shaft seal structure being used for speed reducer also comprises:
Transmission screw (6), is connected and fixed by described transmission screw (6) between described cutting ferrule (4) and spring seat (7) shaft shoulder.
9., as claimed in claim 7 for the shaft seal structure of speed reducer, it is characterized in that, this shaft seal structure being used for speed reducer also comprises:
Elastic component (8), it is located between described cutting ferrule (4) and spring seat (7) shaft shoulder, and its side and described cutting ferrule (4) offset, and its opposite side and described spring seat (7) shaft shoulder offset.
10., as claimed in claim 7 for the shaft seal structure of speed reducer, it is characterized in that: between described cutting ferrule (4) internal face and described spring seat (7) axle sleeve outer wall, be provided with back-up ring (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420576606.5U CN204187004U (en) | 2014-10-08 | 2014-10-08 | A kind of shaft seal structure for speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420576606.5U CN204187004U (en) | 2014-10-08 | 2014-10-08 | A kind of shaft seal structure for speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204187004U true CN204187004U (en) | 2015-03-04 |
Family
ID=52619006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420576606.5U Expired - Fee Related CN204187004U (en) | 2014-10-08 | 2014-10-08 | A kind of shaft seal structure for speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204187004U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214348A (en) * | 2014-10-08 | 2014-12-17 | 江苏大唐国际吕四港发电有限责任公司 | Shaft seal structure for speed reducer |
-
2014
- 2014-10-08 CN CN201420576606.5U patent/CN204187004U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214348A (en) * | 2014-10-08 | 2014-12-17 | 江苏大唐国际吕四港发电有限责任公司 | Shaft seal structure for speed reducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150304 Termination date: 20211008 |