CN202690989U - Self decompression type worm speed reducer - Google Patents
Self decompression type worm speed reducer Download PDFInfo
- Publication number
- CN202690989U CN202690989U CN 201220248892 CN201220248892U CN202690989U CN 202690989 U CN202690989 U CN 202690989U CN 201220248892 CN201220248892 CN 201220248892 CN 201220248892 U CN201220248892 U CN 201220248892U CN 202690989 U CN202690989 U CN 202690989U
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- speed reducer
- worm
- decompression type
- type worm
- cover
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Abstract
The utility model relates to a speed reducer, in particular to a self decompression type worm speed reducer. The self decompression type worm speed reducer mainly solves the technical problem that heat generated by the speed reducer during normal work in the prior art can cause increase of air pressure inside the speed reducer, a rubber cover in the speed reducer swells due to increase of the air pressure, and the rubber cover is not applicable to certain speed reducers and cannot be used for special fields with a breather and the like. The self decompression type worm speed reducer comprises a box body (1) and is characterized in that a worm gear (2) and a worm (3) which are mutually meshed are arranged in the box body (1), the runner cover (4) is arranged on the box body, a pressing cover (5) is arranged outside the runner cover, and an air vent (6) is arranged on the pressing cover (5).
Description
Technical field
The utility model relates to a kind of retarder, especially relates to a kind of from the decompression type worm speed reducer.
Background technique
At present, the gear reduction unit of being used widely, worm-gear speed reducer, be subject to volume restrictions, its speed ratio is less than normal, and its transmission direction is generally parallel input output and can not satisfies some existing large speed ratios mini-plant that has again the vertical-transmission direction to require that slows down and install and use.Chinese patent discloses a kind of double worm gear reducing mechanism (notice of authorization number: CN 201250880Y), it comprises worm type of reduction gearing, be provided with two worm type of reduction gearings, worm screw on two worm type of reduction gearings links together by the adjustable coupling of axial rotation angle, realizes synchronization; Have at least one worm screw two ends all to stretch out in himself reducer shell in two worm type of reduction gearings, with a end that coupling is not installed on this worm screw input shaft as this reducing gear; Output shaft on each worm type of reduction gearing is connected with respectively a small gear; Small gear simultaneously and the gearwheel engagement driving, and with the transmission shaft at the gearwheel place output shaft as this reducing gear; The two ends of the worm screw of two worm type of reduction gearings all stretch out in the separately housing of retarder itself, two worm type of reduction gearings and connected small gear respectively, has respectively identical specification, the coupling that employed axial rotation angle is adjustable is made of two half-couplings, some screws evenly distribute on one of them half-coupling, corresponding described screw is provided with the slotted hole of some arcs on another half-coupling, is fastenedly connected by screw between two half-couplings.Can cause the retarder air pressure inside to increase but produce heat during this retarder normal operation, the serum cap in the retarder expands owing to air pressure increases, thereby is not suitable for the special occasions that some retarders can not be installed breather.
The model utility content
The utility model provides a kind of from the decompression type worm speed reducer, it mainly is to produce heat when solving the existing retarder normal operation of prior art can cause the retarder air pressure inside to increase, serum cap in the retarder expands owing to air pressure increases, thereby is not suitable for the technical problem that some retarders can not be installed the special occasions etc. of breather.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
Of the present utility modelly comprise casing from the decompression type worm speed reducer, be provided with intermeshing worm gear and worm screw in the described casing, casing is provided with serum cap, and the serum cap outside is provided with gland, has vent on the gland.The closed cavity that vent connection outside atmosphere and gland, serum cap form, discharge gas between serum cap and the gland by the vent on the outer gland of serum cap like this, thereby the volume of retarder inside is increased, reduce the air pressure of retarder inside, thereby guarantee the normal operation of retarder.
As preferably, be provided with oil seal cover between described worm screw and the casing.Oil seal cover can prevent that fluid from leaking, and can also guarantee that dust can not enter into box house simultaneously.
As preferably, described vent is located at the side of gland, and vent is more than 1.Vent arranges a plurality of, and the efficient of exhaust is higher.
Therefore, the utility model is discharged gas between serum cap and the gland by the pore on the outer gland of serum cap, thereby the volume of retarder inside is increased, and reduces the air pressure of retarder inside, thereby guarantee the normal operation of retarder, simple and reasonable for structure.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of the present utility model;
Accompanying drawing 2 is side structure schematic representation of Fig. 1.
Component, position and numbering among the figure: casing 1, worm gear 2, worm screw 3, serum cap 4, gland 5, vent 6, oil seal cover 7.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: this example from the decompression type worm speed reducer, such as Fig. 1, Fig. 2, a casing 1 is arranged, be provided with intermeshing worm gear 2 and worm screw 3 in the casing, be provided with oil seal cover 7 between worm screw and the casing.Casing is provided with serum cap 4, and the serum cap outside is provided with gland 5, has vent 6 on the gland.Vent is located at the side of gland 5, and vent is more than 1.
During use, producing heat during the retarder normal operation causes the retarder air pressure inside to increase, serum cap in the retarder expands owing to air pressure increases, discharge gas between serum cap and the gland by the vent 6 on the outer gland 5 of serum cap 4 simultaneously, thereby the volume of retarder inside is increased, reduce the air pressure of retarder inside, thereby guarantee the normal operation of retarder.
The above only is specific embodiment of the utility model, but structure characteristic of the present utility model is not limited to this, any those skilled in the art is in field of the present utility model, and the variation of doing or modification all are encompassed among the claim of the present utility model.
Claims (3)
1. one kind from the decompression type worm speed reducer, comprise casing (1), it is characterized in that being provided with in the described casing (1) intermeshing worm gear (2) and worm screw (3), casing is provided with serum cap (4), the serum cap outside is provided with gland (5), has vent (6) on the gland.
2. according to claim 1 from the decompression type worm speed reducer, it is characterized in that being provided with oil seal cover (7) between described worm screw (3) and the casing (1).
3. according to claim 1 and 2 from the decompression type worm speed reducer, it is characterized in that described vent (6) is located at the side of gland (5), and vent is more than 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220248892 CN202690989U (en) | 2012-05-30 | 2012-05-30 | Self decompression type worm speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220248892 CN202690989U (en) | 2012-05-30 | 2012-05-30 | Self decompression type worm speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202690989U true CN202690989U (en) | 2013-01-23 |
Family
ID=47546614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220248892 Expired - Lifetime CN202690989U (en) | 2012-05-30 | 2012-05-30 | Self decompression type worm speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202690989U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115163797A (en) * | 2022-05-19 | 2022-10-11 | 中山小神童创新科技有限公司 | Speed reducer ventilation structure, speed reducer and stair climbing machine |
-
2012
- 2012-05-30 CN CN 201220248892 patent/CN202690989U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115163797A (en) * | 2022-05-19 | 2022-10-11 | 中山小神童创新科技有限公司 | Speed reducer ventilation structure, speed reducer and stair climbing machine |
| CN115163797B (en) * | 2022-05-19 | 2023-03-10 | 中山小神童创新科技有限公司 | Speed reducer ventilation structure, speed reducer and stair climbing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170210 Address after: 313100 Changxin economic and Technological Development Zone, Zhejiang, Huzhou, No. 10 Patentee after: ZHEJIANG HENGXING TRANSMISSION TECHNOLOGY CO., LTD. Address before: Hangzhou City, Zhejiang province 311231 Hongda Xiaoshan economic and Technological Development Zone Road No. 66 Patentee before: Hangzhou Zhongde Transmission Equipment Co., Ltd. Patentee before: FIXEDSTAR GROUP |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130123 |
|
| CX01 | Expiry of patent term |