CN204610734U - A kind of planetary speed reducer with auxiliary brake function - Google Patents
A kind of planetary speed reducer with auxiliary brake function Download PDFInfo
- Publication number
- CN204610734U CN204610734U CN201520317326.7U CN201520317326U CN204610734U CN 204610734 U CN204610734 U CN 204610734U CN 201520317326 U CN201520317326 U CN 201520317326U CN 204610734 U CN204610734 U CN 204610734U
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- China
- Prior art keywords
- casing
- brake
- speed reducer
- output shaft
- planetary speed
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Abstract
The utility model relates to a kind of planetary speed reducer with auxiliary brake function, be used in combination with an oil hydraulic motor, auxiliary braking planetary speed reducer comprises casing, input shaft is provided with in casing, output shaft, sun gear, planet carrier and planet wheel, casing is provided with oil inlet hole, the oil duct be communicated with oil inlet hole is provided with in casing, box inside is fixedly installed ring gear, input shaft is connected with sun gear, sun gear is meshed with planet wheel, planet wheel is all connected with ring gear internal messing, planet wheel is arranged on planet carrier, the beneficial effects of the utility model are: arrange brake component the periphery stating whipping dish is equally spaced, oil hydraulic motor also coordinates the elastic component that is arranged in mounting groove and piston piece to drive brake slipper radially to move, thus can facilitate, reliable realization is to the braking of output shaft, the internal face of box cover arranges the guiding convex tendon radially extended, makes brake slipper guidance quality in moving process good, braking steadily.
Description
Technical field
The utility model relates to a kind of planetary speed reducer, refers in particular to a kind of planetary speed reducer with auxiliary brake function.
Background technique
Planetary speed reducer has compact structure, and backhaul gap is little, and precision is higher, the advantage that specified output torque is large, needs all can use planetary speed reducer in the heavy machinery of large output torque at present at some.Domestic existing engineering machinery comprises rotary drilling rig, and crawler crane, excavator, bulldozer and loader etc. all can use the speed reducer with built-in break, and these machineries require break: compact structure, easy to operate, reliably flexibly.Break on existing speed reducer mostly is Normally closed type structure, but this brake structural is when braking system or hydraulic pressure break down, even if speed reducer and break are all normally intact, also can lose pressure because of high-pressure oil passage, cause the movable friction plate braked and determine under friction plate is still in the braking state be mutually adjacent to, the rotatingshaft of speed reducer to be rotated, speed reducer can not operate, cause the transmission system of main frame out of service, cause potential safety hazard, inconvenient maintenance; And the retarder of existing brake structure, the design of its brake structure is mostly comparatively complicated, and brake sensitive not, braking effect is not good.
Summary of the invention
The purpose of this utility model is to provide the planetary speed reducer that a kind of structure is simple, braking has auxiliary brake function reliably.
A kind of planetary speed reducer with auxiliary brake function, be used in combination with an oil hydraulic motor, the described planetary speed reducer with auxiliary brake function comprises casing, input shaft is provided with in casing, output shaft, sun gear, planet carrier and planet wheel, described casing is provided with oil inlet hole, the oil duct be communicated with oil inlet hole is provided with in casing, box inside is fixedly installed ring gear, described input shaft is connected with sun gear, sun gear is meshed with described planet wheel, described planet wheel is all connected with ring gear internal messing, described planet wheel is arranged on planet carrier, described planet carrier and output shaft are in transmission connection, on described output shaft, key is connected and installed with whipping dish, the periphery of described whipping dish is equally spaced is provided with multiple brake component, each brake component includes one and to be connected with described whipping dish and can to control and the brake slipper of radially slippage by hard to bear oil hydraulic motor, one end that described brake slipper is connected with whipping dish is radially arranged with mounting groove, described mounting groove is connected with oil duct, elastic component and piston piece is provided with in mounting groove.
Preferably, the cross section of described brake slipper is fan-shaped, and one end of described elastic component is fixed on described whipping dish, and the other end of elastic component is fixed in the mounting groove of brake slipper.
Preferably, form annular chamber between described output shaft and described box cover, described brake slipper is positioned at described annular chamber, and the internal face of described box cover is radially extended several for guiding the guiding convex tendon that described brake slipper slides towards output shaft.
Preferably, described casing comprises upper box upper cover and casing lower cover, and described oil inlet hole is arranged on box cover, and described ring gear is being arranged in casing lower cover of combining closely.
The beneficial effects of the utility model are: arrange brake component the periphery stating whipping dish is equally spaced, described oil hydraulic motor also coordinates the elastic component that is arranged in described mounting groove and piston piece to drive described brake slipper radially to move, thus the braking that can facilitate, realize described output shaft reliably; The internal face of described box cover arranges the guiding convex tendon radially extended, makes described brake slipper guidance quality in moving process good, braking steadily.
Accompanying drawing explanation
Accompanying drawing 1 is the sectional view with the planetary speed reducer of auxiliary brake function described in the utility model.
Accompanying drawing 2 is the sectional view of planetary speed reducer along A-A direction in Fig. 1 with auxiliary brake function described in the utility model.
Embodiment
Accompanying drawings 1, shown in 2, the planetary speed reducer with auxiliary brake function described in the utility model, be used in combination with an oil hydraulic motor, described auxiliary braking planetary speed reducer comprises casing 1, input shaft 2 is provided with in casing 1, output shaft 3, sun gear 4, planet carrier 5 and planet wheel 6, described casing 1 is provided with oil inlet hole 7, the oil duct 8 be communicated with oil inlet hole 7 is provided with in casing 1, ring gear 9 is fixedly installed inside casing 1, described input shaft 2 is connected with sun gear 4, sun gear 4 is meshed with described planet wheel 6, described planet wheel 6 is all connected with ring gear 9 internal messing, described planet wheel 6 is arranged on planet carrier 5, described planet carrier 5 is in transmission connection with output shaft 3, on described output shaft 3, key is connected and installed with whipping dish 16, the periphery of described whipping dish 16 is equally spaced is provided with multiple brake component, each brake component includes one and to be connected with described whipping dish 16 and can to control and the brake slipper 10 of radially slippage by hard to bear oil hydraulic motor, one end that described brake slipper 10 is connected with whipping dish 16 is radially arranged with mounting groove 20, described mounting groove 20 is connected with oil duct 8, elastic component 15 and piston piece 11 is provided with in mounting groove 20.Described brake slipper 10 is under elastic component 15, piston piece 11 promote and coordinate the driving of described oil hydraulic motor, can slippage between a non-brake state and a braking state.When described non-brake state, described brake slipper 10 is away from the internal face of described casing 1, and now described output shaft 3 is in the non-brake state that can freely rotate; When described braking state, described brake slipper 10 is adjacent to the internal face of described casing 1, and now described output shaft 3 can not rotate, and output shaft 3 is in braking state.
Preferably, the cross section of described brake slipper 10 is fan-shaped, and one end of described elastic component 15 is fixed on described whipping dish 16, and the other end of elastic component 15 is fixed in the mounting groove 20 of brake slipper 10.
Preferably, annular chamber is formed between described output shaft 3 and described casing 1 upper cover, described brake slipper 10 is positioned at described annular chamber, and the internal face of described box cover 12 is radially extended several for guiding the guiding convex tendon 13 that described brake slipper 10 slides towards output shaft 3.
Preferably, described casing 1 comprises upper box upper cover 12 and casing lower cover 14, and described oil inlet hole 7 is arranged on box cover 12, and described ring gear 9 is being arranged in casing lower cover 14 of combining closely.
The working principle with the planetary speed reducer of auxiliary brake function described in the utility model is: when non-brake state, the high-pressure oil passage communicated with oil inlet hole is closed by oil hydraulic motor, now, elastic component is not compressed, there is gap between described brake slipper and the internal face of box cover, described output shaft is in free rotary state; When needs are braked, the high-pressure oil passage entering to communicate with oilhole is opened by oil hydraulic motor, pass into hydraulic oil in oil duct and inject piston oil pocket, piston radially moves under hydraulic oil promotes, compression elastic piece, thus promote described brake slipper radially to the internal face slippage of described box cover, described brake slipper contact is at the internal face of described box cover, thus described output shaft is stopped operating, realize braking.When no longer needing braking, controlled by oil hydraulic motor to close the high-pressure oil passage communicated with oil inlet hole, elastic component resets and promotes the position that described piston gets back to non-braking state simultaneously.
From above to description of the present utility model: arrange brake component the periphery stating whipping dish is equally spaced, described oil hydraulic motor also coordinates the elastic component that is arranged in described mounting groove and piston piece to drive described brake slipper radially to move, thus the braking that can facilitate, realize described output shaft reliably; The internal face of described box cover arranges the guiding convex tendon radially extended, makes described brake slipper guidance quality in moving process good, braking steadily.
Claims (4)
1. one kind has the planetary speed reducer of auxiliary brake function, be used in combination with an oil hydraulic motor, described auxiliary braking planetary speed reducer comprises casing, input shaft is provided with in casing, output shaft, sun gear, planet carrier and planet wheel, it is characterized in that: described casing is provided with oil inlet hole, the oil duct be communicated with oil inlet hole is provided with in casing, box inside is fixedly installed ring gear, described input shaft is connected with sun gear, sun gear is meshed with described planet wheel, described planet wheel is all connected with ring gear internal messing, described planet wheel is arranged on planet carrier, described planet carrier and output shaft are in transmission connection, on described output shaft, key is connected and installed with whipping dish, the periphery of described whipping dish is equally spaced is provided with multiple brake component, each brake component includes one and to be connected with described whipping dish and can to control and the brake slipper of radially slippage by hard to bear oil hydraulic motor, one end that described brake slipper is connected with whipping dish is radially arranged with mounting groove, described mounting groove is connected with oil duct, elastic component and piston piece is provided with in mounting groove.
2. the planetary speed reducer with auxiliary brake function according to claim 1, is characterized in that: the cross section of described brake slipper is fan-shaped, and one end of described elastic component is fixed on described whipping dish, and the other end of elastic component is fixed in the mounting groove of brake slipper.
3. the planetary speed reducer with auxiliary brake function according to claim 2, it is characterized in that: between described output shaft and described box cover, form annular chamber, described brake slipper is positioned at described annular chamber, and the internal face of described box cover is radially extended several for guiding the guiding convex tendon that described brake slipper slides towards output shaft.
4. the planetary speed reducer with auxiliary brake function according to claim 1 and 2, it is characterized in that: described casing comprises upper box upper cover and casing lower cover, described oil inlet hole is arranged on box cover, and described ring gear is being arranged in casing lower cover of combining closely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520317326.7U CN204610734U (en) | 2015-05-12 | 2015-05-12 | A kind of planetary speed reducer with auxiliary brake function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520317326.7U CN204610734U (en) | 2015-05-12 | 2015-05-12 | A kind of planetary speed reducer with auxiliary brake function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204610734U true CN204610734U (en) | 2015-09-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520317326.7U Expired - Fee Related CN204610734U (en) | 2015-05-12 | 2015-05-12 | A kind of planetary speed reducer with auxiliary brake function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204610734U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058394A (en) * | 2018-11-01 | 2018-12-21 | 李全敏 | A kind of application method of the planetary reducer for dry pore-forming screw rod anchoring drilling machine |
| CN112253696A (en) * | 2020-10-15 | 2021-01-22 | 北京特种机械研究所 | Planetary reducer |
-
2015
- 2015-05-12 CN CN201520317326.7U patent/CN204610734U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058394A (en) * | 2018-11-01 | 2018-12-21 | 李全敏 | A kind of application method of the planetary reducer for dry pore-forming screw rod anchoring drilling machine |
| CN112253696A (en) * | 2020-10-15 | 2021-01-22 | 北京特种机械研究所 | Planetary reducer |
| CN112253696B (en) * | 2020-10-15 | 2021-10-22 | 北京特种机械研究所 | Planetary reducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Planetary reducer with auxiliary brake function Effective date of registration: 20171211 Granted publication date: 20150902 Pledgee: Industrial Commercial Bank of China Ltd Pingyang branch Pledgor: Zhejiang Redsun Machinery Co., Ltd. Registration number: 2017330000273 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150902 Termination date: 20190512 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |