CN204647241U - Self-relieving speed reducer - Google Patents
Self-relieving speed reducer Download PDFInfo
- Publication number
- CN204647241U CN204647241U CN201520367452.3U CN201520367452U CN204647241U CN 204647241 U CN204647241 U CN 204647241U CN 201520367452 U CN201520367452 U CN 201520367452U CN 204647241 U CN204647241 U CN 204647241U
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- China
- Prior art keywords
- housing
- hole
- bolt
- speed reducer
- sealing cover
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of self-relieving speed reducer, comprise housing, housing is provided with oil hole, oil hole is provided with sealing cover, sealing cover in the axial direction on be provided with through hole, slide block is provided with in through hole, the Compress Spring abutted with slide block is provided with in through hole, sealing cover is provided with gas-permeable channels, gas-permeable channels one end extends on the sidewall of through hole, the other end extends to the external world, housing is also provided with the opening of the penetrating external world and enclosure interior, opening is provided with the first bolt, first bolt offers air supply passage, air supply passage one end is positioned on the sidewall of the first bolt, the other end extends to the external world, it is higher that the utility model can realize temperature in housing, to its pressure release when pressure is larger, and outside dust can not be made to enter in housing, simultaneously more change oil or to when carrying out other operations in housing with make-up gas in time image housing, make its pressure identical with outside pressure, easily open oil hole.
Description
Technical field
The utility model belongs to speed reducer field, relates to a kind of self-relieving speed reducer in particular.
Background technique
Speed reducer operationally, a large amount of high temperature is produced in housing, cause the pressure increase in housing, need to carry out pressure release to it, the housing had at present uses Ventilated cap carry out pressure release, but Ventilated cap all make directly to be communicated with the external world in housing, makes the dust outside housing enter within housing by Ventilated cap, make the oil in housing dirty, what have still breathes freely with one-way valve type Ventilated cap.
The usual use Compress Spring of one-way valve type Ventilated cap is used to provide certain pressure, when the pressure in housing acquires a certain degree promotion valve body Compress Spring, and pressurized gas are released, but required pressure when this kind of pressure release mode all cannot adjust valve body at present, can not adjust according to various different speed reducer, can only a certain speed reducer of single correspondence, and when Compress Spring uses more long afterwards, its elasticity will change, so will change the pressure of its corresponding speed reducer pressure release, and make speed reducer cannot timely or too early pressure release.
And one-way valve can only lose heart in individual event, when speed reducer works, its enclosure interior temperature is higher, gas is released by one-way valve, when cooling in speed reducer quits work housing, without new gas make-up in housing, cause occurring negative pressure in housing, oil hole cannot be opened, cannot to more changing oil in housing or other operations.
Model utility content
For the deficiencies in the prior art, the utility model provides one, and can to realize temperature in housing higher, to its pressure release when pressure is larger, and outside dust can not be made to enter in housing, simultaneously more change oil or to when carrying out other operations in housing with make-up gas in time image housing, make its pressure identical with outside pressure, easily open the self-relieving speed reducer of oil hole.
For achieving the above object, the utility model provides following technological scheme: a kind of self-relieving speed reducer, comprise housing, housing is provided with oil hole, oil hole is provided with sealing cover, sealing cover in the axial direction on be provided with through hole, sealing cover is provided with inner convex platform towards enclosure interior side, inner convex platform is positioned at through hole and arranges, slide block is provided with in through hole, slide block abuts with inner convex platform, the Compress Spring abutted with slide block is provided with in through hole, sealing cover is provided with gas-permeable channels, gas-permeable channels one end extends to the corresponding inner convex platform place of through hole, the other end extends to the external world, housing is also provided with the opening of the penetrating external world and enclosure interior, opening is provided with the first bolt, first bolt offers air supply passage, air supply passage one end is positioned on the sidewall of the first bolt, the other end extends to the external world.
By adopting technique scheme, when speed reducer operationally, temperature elevated pressure in housing increases, high pressure will promote slide block along through hole to Compress Spring one lateral movement, Compress Spring is compressed, and when after the distance of slide block movement one end, gas-permeable channels will be connected in enclosure interior, the pressurized gas of enclosure interior will be discharged into the external world along gas-permeable channels, and then the pressure of speed reducer inside is reduced, after pressure reduces, Compress Spring extrudes slide block automatically to the motion of inner convex platform direction, and slide block abuts with inner convex platform and seals, and then gas-permeable channels and speed reducer interior separation are come, and can prevent extraneous dust from entering speed reducer internal contamination oil, when speed reducer quits work, in housing after cooling, pressure in housing reduces and forms negative pressure, now as needed to oiling in housing, by rotating the first bolt, first bolt moves to enclosure interior direction, until the part of the corresponding first bolt sidewall of air supply passage stretches in housing, just make to be in communication with the outside in housing by air supply passage, automatically by air supply passage to supplementary pressure in housing, because the first bolt is when moving, move to enclosure interior direction, cannot can not move because of negative pressure in housing, when the pressure in housing and extraneous balance, just can easily the sealing cover on oil hole be opened easily, carry out oiling to enclosure interior or oil is changed, easy to use.
The utility model is set to further: be provided with resilient pad between the head of the first bolt and housing.
By adopting technique scheme, resilient pad can prevent the vibrations of the generation when speed reducer works and affect the position of the first bolt, some is exposed to outside all the time to make the first bolt, and when avoiding speed reducer to work, enclosure interior is in communication with the outside by air supply passage.
The utility model is set to further: in the through hole of sealing cover, extraneous side is provided with the second bolt, the second bolt abuts with Compress Spring, and the corresponding second bolt place of through hole is provided with internal thread.
By adopting technique scheme, by the screw-internal thread fit of the second bolt and through hole, rotate the second bolt and then adjustable second bolt to the extruding dynamics of Compress Spring, and then change pressure required when slide block is pushed, can regulate according to the force value of actual conditions to pressure release, and screw thread can make bolt finely tune, more accurately.
The utility model is set to further: gas-permeable channels and air supply passage correspondence extend to extraneous side and be provided with filter screen.
By adopting technique scheme, filter screen can prevent extraneous dust from gas-permeable channels and air supply passage being blocked, and simultaneously when the first bolt screws in enclosure interior, a large amount of gas enters in housing by air supply passage, and dust can be prevented to be inhaled in housing.
The utility model is set to further: be provided with seal ring between sealing cover and housing.
By adopting technique scheme, seal ring makes sealing between sealing cover and housing good, prevents leakage of oil or gas leakage, ensures the cleaning of oil hole place and enclosure interior.
Compared with prior art, it is higher that the self-relieving speed reducer of the utility model can realize temperature in housing, to its pressure release when pressure is larger, and outside dust can not be made to enter in housing, simultaneously more change oil or to when carrying out other operations in housing with make-up gas in time image housing, make its pressure identical with outside pressure, easily open oil hole, self-relieving pressure can be adjusted at any time simultaneously.
Accompanying drawing explanation
Fig. 1 is the three-dimensional structure diagram of the self-relieving speed reducer of the utility model;
Fig. 2 is the cross section view of the self-relieving speed reducer of the utility model;
Fig. 3 is the enlarged view in A portion in Fig. 2.
Reference character: 1, housing; 12, oil hole; 13, opening; 2, sealing cover; 21, through hole; 22, slide block; 23, Compress Spring; 25, gas-permeable channels; 26, filter screen; 27, the second bolt; 29, inner convex platform; 35, resilient pad; 36, air supply passage; 3, the first bolt.
Embodiment
Referring to figs. 1 through Fig. 3, the embodiment of the self-relieving speed reducer of the utility model is described further.
A kind of self-relieving speed reducer, comprise housing 1, housing 1 is provided with oil hole 12, oil hole 12 is provided with sealing cover 2, sealing cover 2 in the axial direction on be provided with through hole 21, sealing cover 2 is provided with inner convex platform 29 towards the inner side of housing 1, inner convex platform 29 is positioned at through hole 21 place and arranges, slide block 22 is provided with in through hole 21, slide block 22 abuts with inner convex platform 29, the Compress Spring 23 abutted with slide block 22 is provided with in through hole 21, sealing cover 2 is provided with gas-permeable channels 25, gas-permeable channels 25 one end extends to through hole 21 corresponding inner convex platform 29 place, on the sidewall of i.e. through hole 21, the other end extends to the external world, housing 1 is also provided with the opening 2 of the penetrating external world and housing 1 inside, opening 2 is provided with the first bolt 3, first bolt 3 offers air supply passage 36, air supply passage 36 one end is positioned on the sidewall of the first bolt 3, the other end extends to the external world, filter screen 26 is provided with in preferred air supply passage 36 and gas-permeable channels 25.
In use, when speed reducer normally works, first bolt 3 part is positioned at opening 2, namely air supply passage 36 one end is made to be adjacent on the sidewall of opening 2, air supply passage 36 is avoided to be in communication with the outside housing 1 inside, housing 1 is in sealing state, in speed reducer working shell 1, temperature elevated pressure increases, high pressure will promote slide block 22 along through hole 21 to Compress Spring 23 1 lateral movement, Compress Spring 23 is compressed, after slide block 22 moves one end distance, gas-permeable channels 25 will be connected in housing 1 inside, the pressurized gas of housing 1 inside will be discharged into the external world along gas-permeable channels 25, and then the pressure of speed reducer inside is reduced, after pressure reduces, extruding slide block 22 is to the motion of inner convex platform 29 direction automatically for Compress Spring 23, and slide block 22 abuts with inner convex platform 29 and seals, and then gas-permeable channels 25 and speed reducer interior separation are come, and can prevent extraneous dust from entering speed reducer internal contamination oil, when speed reducer quits work, in housing 1 after cooling, pressure in housing 1 reduces and forms negative pressure, now as needed to oiling in housing 1, as very difficult in directly opened sealing cover 2, by rotating the first bolt 3, first bolt 3 moves to housing 1 internal direction, until the part of corresponding first bolt 3 sidewall of air supply passage 36 stretches in housing 1, just make to be in communication with the outside in housing 1 by air supply passage 36, automatically air supply passage 36 is passed through to supplementary pressure in housing 1, because the first bolt 3 is when moving, move to housing 1 internal direction, cannot can not move because of negative pressure in housing 1, when the pressure in housing 1 and extraneous balance, just can easily the sealing cover 2 on oil hole 12 be opened easily.
Resilient pad 35 is provided with between the head of preferred first bolt 3 of the present embodiment and housing 1, resilient pad 35 can prevent the vibrations of the generation when speed reducer works and affect the position of the first bolt 3, some is exposed to housing 1 outside all the time to make the first bolt 3, and when avoiding speed reducer to work, housing 1 inside is in communication with the outside by air supply passage 36.
In the through hole 21 of preferred sealing cover 2, extraneous side is provided with the second bolt 27, second bolt 27 abuts with Compress Spring 23, corresponding second bolt 27 place of through hole 21 is provided with internal thread, by the screw-internal thread fit of the second bolt 27 with through hole 21, rotate the extruding dynamics of the second bolt 27 and then adjustable second bolt 27 pairs of Compress Springs 23, and then change pressure required when slide block 22 is pushed, can regulate according to the force value of actual conditions to pressure release, and screw thread can make the second bolt 27 finely tune, more accurately.
The above is only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technological schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. a self-relieving speed reducer, comprise housing, housing is provided with oil hole, described oil hole is provided with sealing cover, it is characterized in that: described sealing cover in the axial direction on be provided with through hole, described sealing cover is provided with inner convex platform towards enclosure interior side, inner convex platform is positioned at through hole and arranges, slide block is provided with in described through hole, described slide block abuts with inner convex platform, the Compress Spring abutted with slide block is provided with in described through hole, described sealing cover is provided with gas-permeable channels, described gas-permeable channels one end extends to the corresponding inner convex platform place of through hole, the other end extends to the external world, described housing is also provided with the opening of the penetrating external world and enclosure interior, described opening is provided with the first bolt, described first bolt offers air supply passage, described air supply passage one end is positioned on the sidewall of the first bolt, the other end extends to the external world.
2. self-relieving speed reducer according to claim 1, is characterized in that: be provided with resilient pad between the head of described first bolt and housing.
3. self-relieving speed reducer according to claim 2, is characterized in that: in the through hole of described sealing cover, extraneous side is provided with the second bolt, described second bolt abuts with Compress Spring, and the corresponding second bolt place of described through hole is provided with internal thread.
4. self-relieving speed reducer according to claim 1, is characterized in that: described gas-permeable channels and air supply passage correspondence extend to extraneous side and be provided with filter screen.
5. self-relieving speed reducer according to claim 1, is characterized in that: be provided with seal ring between described sealing cover and housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520367452.3U CN204647241U (en) | 2015-05-30 | 2015-05-30 | Self-relieving speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520367452.3U CN204647241U (en) | 2015-05-30 | 2015-05-30 | Self-relieving speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204647241U true CN204647241U (en) | 2015-09-16 |
Family
ID=54099997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520367452.3U Expired - Fee Related CN204647241U (en) | 2015-05-30 | 2015-05-30 | Self-relieving speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204647241U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108326804A (en) * | 2017-01-20 | 2018-07-27 | 苏州宝时得电动工具有限公司 | A kind of reduction box pressure equaliser of electric tool |
| CN110486423A (en) * | 2019-08-28 | 2019-11-22 | 浙江三欣重工传动有限公司 | A kind of wear-resistant helical speed reduction gear and its application method |
-
2015
- 2015-05-30 CN CN201520367452.3U patent/CN204647241U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108326804A (en) * | 2017-01-20 | 2018-07-27 | 苏州宝时得电动工具有限公司 | A kind of reduction box pressure equaliser of electric tool |
| CN110486423A (en) * | 2019-08-28 | 2019-11-22 | 浙江三欣重工传动有限公司 | A kind of wear-resistant helical speed reduction gear and its application method |
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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 |
Granted publication date: 20150916 Termination date: 20200530 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |