CN204784618U - Gear reducer shaft end sealing device - Google Patents
Gear reducer shaft end sealing device Download PDFInfo
- Publication number
- CN204784618U CN204784618U CN201520416102.1U CN201520416102U CN204784618U CN 204784618 U CN204784618 U CN 204784618U CN 201520416102 U CN201520416102 U CN 201520416102U CN 204784618 U CN204784618 U CN 204784618U
- Authority
- CN
- China
- Prior art keywords
- seal ring
- sealing
- mounting groove
- outside
- shaft end
- 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.)
- Expired - Fee Related
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- Sealing Devices (AREA)
- Sealing Of Bearings (AREA)
Abstract
The utility model provides a gear reducer shaft end sealing device, relates to shaft end sealing device, and the reducing gear box and the axis of rotation of reducing gear box both sides are equipped with sealing gland within a definite time, and sealing gland is equipped with the sealing washer mounting groove on the outside, is equipped with the sealing washer in the sealing washer mounting groove, and the sealing washer mounting groove outside is equipped with sealing ring gland, its characterized in that be equipped with sealed direction screw in the circle body of sealing washer on the anchor ring, sealed direction screw is the same with the rotation direction of the axis of rotation of sealing up by the inboard hand of spiral of the sealing washer mounting groove outside to sealing washer mounting groove. The utility model has the advantages of simple structure, the maintenance is simple and convenient, labour saving and time saving, and sealed leak protection is effectual, long service life.
Description
Technical field
The utility model relates to shaft end seal device, says it is that a kind of structure is simple, easy accessibility in detail, good sealing effect, the gear reducer shaft end seal device of long service life.
Background technique
We know, existing gear reducer is mainly used in the industries such as electric machinery, metallurgical machinery, road building machine, mining machinery, building machinery, conveying mechanism, cement machinery, water conservancy machinery, petroleum machinery; It is used widely because reaching higher transmitted power, compact structure profile, larger gear ratio and bearing capacity.The structure of gear reducer is: be provided with speed reducer, two input shafts and output shaft be parallel to each other are provided with through bearing in speed reducer, input shaft in speed reducer and output shaft are provided with intermeshing driving gear and driven gear, and (diameter of driving gear is less than the diameter of driven gear, reach the object of deceleration), sealing gland is provided with between the speed reducer of speed reducer both sides and input shaft, output shaft, seal ring mounting groove is provided with outside sealing gland, be provided with seal ring in seal ring mounting groove, outside seal ring mounting groove, be provided with seal ring gland; Seal ring gland is fixedly connected with sealing gland, is pressed in by seal ring in seal ring mounting groove.The structure of existing seal ring is: be provided with annular body, and circle body cross section is rectangle or I shape, and circle body inner ring surface is the flat cylindrical face coordinated that contacts with input shaft, output shaft.Sealing, the leak preventing effect of this kind of gear reducer shaft end seal device are poor, and the working life of seal ring is short, and maintenance is frequent, and maintenance is wasted time and energy.
Summary of the invention
The purpose of this utility model solves above-mentioned the deficiencies in the prior art, and provide a kind of structure simple, it is easy, time saving and energy saving to keep in repair, and sealing and anti-leakage is effective, the gear reducer shaft end seal device of long service life.
The utility model solves the technological scheme that above-mentioned the deficiencies in the prior art adopt:
A kind of gear reducer shaft end seal device, sealing gland is provided with between the speed reducer of speed reducer both sides and rotatingshaft, seal ring mounting groove is provided with outside sealing gland, seal ring is provided with in seal ring mounting groove, seal ring gland is provided with outside seal ring mounting groove, it is characterized in that the circle body inner ring surface of described seal ring is provided with sealing guide thread, sealing guide thread is identical with the sense of rotation of sealed rotatingshaft by the Hand of spiral outside seal ring mounting groove to seal ring mounting groove.
Sealing guide thread described in the utility model is square threaded form or trapezoidal thread, and the top of sealing guide thread directly contacts with sealed axle.
The flinger ring identical with the thread height sealing guide thread is provided with outside the circle body inner ring surface of seal ring described in the utility model.
The utility model in use, gear reducer works, driving shaft and driven shaft rotate, because the sealing guide thread on the circle body inner ring surface of seal ring is identical with the sense of rotation of the axle that it seals by the Hand of spiral outside seal ring mounting groove to seal ring mounting groove, when axle rotates, outside seepage can be prevented with the lubricant oil that coefficient of kinematic viscosity is larger the leading the speed reducer flowing inside downwardly towards seal ring of sealing guide thread.Because seal ring only has being coupling of sealing guide thread and rotation tactile, area of contact is little, and the effect of sealing is not the snug fit relying on seal ring inner ring surface and between centers, and between the two, frictional force is little, generation and the heat conducted few, seal ring long service life.When sealing decline, axle head outside oil impregnate time, open seal ring gland and take out seal ring, after cleaning the sealing guide thread of its inner ring surface, reusable; For the ease of being taken out by seal ring, cleaning after being cut off with cutter by seal ring, installation, still can use, it is easy, time saving and energy saving to keep in repair, and maintenance cost is low.It is simple that the utility model has structure, and it is easy, time saving and energy saving to keep in repair, the advantages such as sealing and anti-leakage is effective, long service life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model, is also the sealed structural representation of an axle head of gear reducer.
Fig. 2 is the structural representation of seal ring in the utility model.
Embodiment
Gear reducer shaft end seal device as shown in Figure 1, 2, be provided with speed reducer 4, through bearing 5, rotatingshaft 6(input shaft, output shaft are installed in speed reducer 4), sealing gland 1 is provided with between the speed reducer 4 of speed reducer 4 both sides and rotatingshaft 6, be provided with seal ring mounting groove outside sealing gland 1, in seal ring mounting groove, be provided with seal ring 3, outside seal ring mounting groove, be provided with seal ring gland 2, said structure is prior art, repeats no more.Of the present utility model be characterised in that the circle body inner ring surface of described seal ring 3 be provided with sealing guide thread 7, sealing guide thread 7 identical with the sense of rotation of sealed axle by the Hand of spiral outside seal ring mounting groove to seal ring mounting groove.Described sealing guide thread is square threaded form or trapezoidal thread, and the top (thread top) of sealing guide thread directly contacts with sealed axle.Described in seal ring circle body inner ring surface outside be provided with the flinger ring identical with the thread height sealing guide thread.
The utility model in use, gear reducer works, driving shaft and driven shaft rotate, because the sealing guide thread on the circle body inner ring surface of seal ring is identical with the sense of rotation of the axle that it seals by the Hand of spiral outside seal ring mounting groove to seal ring mounting groove, when axle rotates, outside seepage can be prevented with the lubricant oil that coefficient of kinematic viscosity is larger the leading the speed reducer flowing inside downwardly towards seal ring of sealing guide thread.Because seal ring only has being coupling of sealing guide thread and rotation tactile, area of contact is little, and the effect of sealing is not the snug fit relying on seal ring inner ring surface and between centers, and between the two, frictional force is little, generation and the heat conducted few, seal ring long service life.When sealing decline, axle head outside oil impregnate time, open seal ring gland and take out seal ring, after cleaning the sealing guide thread of its inner ring surface, reusable; For the ease of being taken out by seal ring, cleaning after being cut off with cutter by seal ring, installation, still can use, it is easy, time saving and energy saving to keep in repair, and maintenance cost is low.It is simple that the utility model has structure, and it is easy, time saving and energy saving to keep in repair, the advantages such as sealing and anti-leakage is effective, long service life.
Claims (3)
1. a gear reducer shaft end seal device, sealing gland is provided with between the speed reducer of speed reducer both sides and rotatingshaft, seal ring mounting groove is provided with outside sealing gland, seal ring is provided with in seal ring mounting groove, seal ring gland is provided with outside seal ring mounting groove, it is characterized in that the circle body inner ring surface of described seal ring is provided with sealing guide thread, sealing guide thread is identical with the sense of rotation of sealed rotatingshaft by the Hand of spiral outside seal ring mounting groove to seal ring mounting groove.
2. gear reducer shaft end seal device according to claim 1, is characterized in that described sealing guide thread is square threaded form or trapezoidal thread, and the top of sealing guide thread directly contacts with sealed axle.
3. gear reducer shaft end seal device according to claim 1 and 2, is provided with the flinger ring identical with the thread height sealing guide thread outside the circle body inner ring surface that it is characterized in that described seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520416102.1U CN204784618U (en) | 2015-06-17 | 2015-06-17 | Gear reducer shaft end sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520416102.1U CN204784618U (en) | 2015-06-17 | 2015-06-17 | Gear reducer shaft end sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204784618U true CN204784618U (en) | 2015-11-18 |
Family
ID=54524670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520416102.1U Expired - Fee Related CN204784618U (en) | 2015-06-17 | 2015-06-17 | Gear reducer shaft end sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204784618U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106002854A (en) * | 2016-06-16 | 2016-10-12 | 江苏铁锚工具有限公司 | Electric hammer |
-
2015
- 2015-06-17 CN CN201520416102.1U patent/CN204784618U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106002854A (en) * | 2016-06-16 | 2016-10-12 | 江苏铁锚工具有限公司 | Electric hammer |
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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: 20151118 Termination date: 20170617 |