CN2628809Y - Cycloidal hydraulic driving device - Google Patents
Cycloidal hydraulic driving device Download PDFInfo
- Publication number
- CN2628809Y CN2628809Y CN 03231905 CN03231905U CN2628809Y CN 2628809 Y CN2628809 Y CN 2628809Y CN 03231905 CN03231905 CN 03231905 CN 03231905 U CN03231905 U CN 03231905U CN 2628809 Y CN2628809 Y CN 2628809Y
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- China
- Prior art keywords
- brake
- hydraulic motor
- friction disk
- gear shaft
- disk type
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Abstract
A cycloid hydraulic gear includes a cycloid oil hydraulic motor, a friction slice type brake, and a planetary reduction gear. By the means of the connection of the front cover of the oil hydraulic motor and the front cover of the brake, the connection of the brake piston seat and the reduction gear shell, as well as the connection of the brake front cover, the piston seat, and the brake shell, to make the oil hydraulic motor, the friction disk type brake, the planetary reduction gear become an integral-type structure, and the gear shaft become a combined component of the brake spindle and the reduction gear central wheel, and the drive shaft joints directly with the gear shaft transmission. Therefore, the device reduces the components and the size, simplifies the transmission links, lower the price, and the performance-to-price ratio was more superior. Meanwhile, the improvement to the spacer rings, the self-aligning bearing and the oil seal installment position enables the utility model to have the good radiation performance; the central gear has trimming function, convenient oil seal replacement and so on advantages.
Description
Technical field
The utility model relates to hydraulic machinery, especially a kind of gerotor type hydraulic transmission with mechanical braking characteristic.
Background technique
Hydraulic transmission is the actuator of all kinds of mechanical-hydraulic transmission systems, in order to satisfy of the requirement of all kinds of machineries to the mechanical braking characteristic, combination accessory is used the oil hydraulic motor that can be converted to mechanical energy by hydraulic pressure simultaneously, realize the break and the planetary reducer of mechanical braking, and hydraulic transmission all adopts split-type design at present, be exactly with oil hydraulic motor, break, retarder designs respectively, make respectively, independent separately, during use their mutual assemblings are together in series, form a cover transmission device, therefore exist volume big, parts are many, the price height, defectives such as transmission efficiency is low.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the defective of prior art and the gerotor type that a kind of volume is little, cost is low, transmission efficiency is high, cost performance is excellent hydraulic transmission is provided.
Embodiment of the present utility model is:
Gerotor type hydraulic transmission, this device comprise cycloid hydraulic motor, friction disk type break, planetary reducer, and cycloid hydraulic motor is made of the rear case that has control port K1, cycloid wheels, motor protecgulum, front side plate, transmission shaft; The friction disk type break by protecgulum, in be provided with the brake casing of stator and moving plate, the piston seat that has control port K2, piston, butterfly spring and constitute; Planetary reducer is by reducer shell, constitute with fixing planetary pinion, planet wheel shaft, axle sleeve, gear shaft, oil seal cover, the bearing support of planet carrier, it is characterized in that described cycloid hydraulic motor, friction disk type break and planetary reducer are monolithic construction, the motor protecgulum of cycloid hydraulic motor and the protecgulum of the friction disk type break one that links, the piston seat of friction disk type break and the reducer shell of the planetary reducer one that links, the protecgulum of break, piston seat, the brake casing one that links; Described gear shaft is the member that the central gear of the brake axle of friction disk type break and planetary reducer unites two into one; Direct and the gear shaft transmission joint of described transmission shaft.
Be provided with spacer ring between the front side plate of described cycloid hydraulic motor and the gear shaft, have aperture to lead to the retarder inner chamber in the gear shaft, and on gear shaft, be provided with selfaligning bearing.
The oil seal cover and the reducer shell of described planetary reducer link, and oil sealing is installed in the oil seal cover, with the reducer shell split.
Compared with prior art, it is the monolithic construction pattern that hydraulic transmission of the present utility model has made up cycloid hydraulic motor, friction disk type break, planetary reducer, reasonable connection by adjacent parts makes individual part have double action, parts are reduced, volume-diminished, reduced transmission link, price reduces, and cost performance is more excellent; Be provided with spacer ring between front side plate and the gear shaft, aperture is arranged in the gear shaft, lead to the retarder inner chamber, can take away inner because of fricative most of heat, perfect heat-dissipating; Selfaligning bearing is installed on gear shaft, makes central gear have fine adjustment function, improved the situation of three planetary pinion unbalance stress that cause because of machining error greatly; Oil sealing is installed on the oil seal cover, and with the reducer shell split, it is convenient to change oil sealing.
Description of drawings
Fig. 1 has provided the utility model sectional structure schematic representation.
Embodiment
In conjunction with above-mentioned accompanying drawing embodiment the utility model is described in detail again.
Referring to Fig. 1, the hydraulic transmission of present embodiment is the gerotor type hydraulic transmission, and this device comprises cycloid hydraulic motor, friction disk type break and the planetary reducer of monolithic construction.
Cycloid hydraulic motor is made of the rear case 21 that has end face oil distribution mechanism and control port K1, cycloid wheels 20, front side plate 19, motor protecgulum 14, transmission shaft 16, and cycloid hydraulic motor is as the drive part of this actuator.
The friction disk type break adjacent with cycloid hydraulic motor by protecgulum 13, in be provided with the brake casing 11 of stator and moving plate 12, the piston seat 8 that has control port K2, piston 9, butterfly spring 10 and constitute.Linking of motor protecgulum 14 and protecgulum 13 with cycloid hydraulic motor and the friction disk type break one that links.
The planetary reducer adjacent with the friction disk type break is by reducer shell 3, with fixing three planetary pinions 6, planet wheel shaft 4, axle sleeve 5, oil seal cover 2, the bearing support 7 of planet carrier 1, constitute with planetary pinion meshed gears axle 15.Piston seat 8 and reducer shell 3 link friction disk type break and the planetary reducer one that links.Planet carrier 1 is supported by a pair of radial ball bearing, and in the endoporus that is installed in reducer shell 3, another is installed on the bearing support.The butterfly spring 10 of friction disk type break is located between piston 9 and the bearing support 7.Oil seal cover 2 links with reducer shell 3, and oil sealing 22 is located in the oil seal cover, makes to change oil sealing conveniently.
Linking of the protecgulum 13 of the utility model by break, piston seat 8, brake casing 11 connects above-mentioned cycloid hydraulic motor, friction disk type break, planetary reducer in aggregates.
This device transmission shaft 16 directly connects with gear shaft 15 splines or singly-bound, and gear shaft is the brake axle of friction disk type break, is again the central gear of planetary reducer, makes designs simplification, reduces transmission link, improves transmission efficiency.Between front side plate 19 and the gear shaft 15 spacer ring 18 is installed, there is aperture to lead to the inner chamber of retarder in the gear shaft, make the leakage oil of cycloid hydraulic motor pass through gear shaft, retarder inner chamber, break, motor drain tap successively, take away inner because of fricative most of heat, perfect heat-dissipating.End at gear shaft is equipped with selfaligning bearing 17 simultaneously, and the outer ring of selfaligning bearing is fixed in the endoporus of protecgulum and motor protecgulum, makes it have fine adjustment function, has improved the situation of three planetary pinion unbalance stress that cause because of machining error greatly.Be with holes on the planetary pinion, be processed with oil groove on the axle sleeve, when planet carrier rotated, oil got rid of in the oil groove because of centrifugal force, plays good self-lubricating function, improved the working life of axle sleeve (being equivalent to sliding bearing).
Dynamic structure of the present utility model is: when cycloid hydraulic motor was worked, the friction disk type break was opened, and transmission shaft driven gear axle rotates, and gear shaft just drives planetary pinion and does rotation or revolution, did retarded motion thereby drive planet carrier, outputed power.When cycloid hydraulic motor was not worked, the elastic force that is produced by butterfly spring compressed fixed, the moving plate of break by piston, makes the gear shaft braking, the unpowered output of planet carrier.
The utility model can built-in multiple hydraulic control system, and user's oil-way system is simplified, and enlarges application area.Simultaneously can add automatically controlled or manual break unfolding mode and additional feed circuit.When control port K2 fed high pressure oil, piston was moved to the left, and stator and moving plate break away from, and break is opened.When K2 and K1 connect, be internal control formula unfolding mode, K2 is the externally controlled type unfolding mode when being controlled by independent oil circuit.Planet carrier as output shaft can connect with outer gear with flange-type, spline or singly-bound.
Claims (3)
1, a kind of gerotor type hydraulic transmission, this device comprises cycloid hydraulic motor, friction disk type break, planetary reducer, and cycloid hydraulic motor is made of the rear case that has control port K1 (21), cycloid wheels (20), motor protecgulum (14), front side plate (19), transmission shaft (16); The friction disk type break by protecgulum (13), in be provided with the brake casing (11) of stator and moving plate (12), the piston seat (8) that has control port K2, piston (9), butterfly spring (10) and constitute; Planetary reducer is by reducer shell (3), with the fixing planetary pinion (6) of planet carrier (1), planet wheel shaft (4), axle sleeve (5), gear shaft (15), oil seal cover (2), bearing support (7) constitutes, it is characterized in that described cycloid hydraulic motor, friction disk type break and planetary reducer are monolithic construction, the motor protecgulum (14) of cycloid hydraulic motor and the protecgulum (13) of the friction disk type break one that links, the reducer shell (3) of the piston seat of friction disk type break (8) and the planetary reducer one that links, the protecgulum of break (13), piston seat (8), brake casing (11) one that links; Described gear shaft (15) is the member that the central gear of the brake axle of friction disk type break and planetary reducer unites two into one; Direct and gear shaft (15) transmission joint of described transmission shaft (16).
2, gerotor type hydraulic transmission according to claim 1, it is characterized in that being provided with spacer ring (18) between the front side plate (19) of described cycloid hydraulic motor and the gear shaft (15), there is aperture to lead to the retarder inner chamber in the gear shaft, and on gear shaft, is provided with selfaligning bearing (17).
3, gerotor type hydraulic transmission according to claim 1 and 2 is characterized in that the oil seal cover (2) of described planetary reducer and reducer shell (3) link, and oil sealing (22) is installed in the oil seal cover, with the reducer shell split.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03231905 CN2628809Y (en) | 2003-06-06 | 2003-06-06 | Cycloidal hydraulic driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03231905 CN2628809Y (en) | 2003-06-06 | 2003-06-06 | Cycloidal hydraulic driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2628809Y true CN2628809Y (en) | 2004-07-28 |
Family
ID=34248420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03231905 Expired - Fee Related CN2628809Y (en) | 2003-06-06 | 2003-06-06 | Cycloidal hydraulic driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2628809Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100460718C (en) * | 2006-02-15 | 2009-02-11 | 贺孝杰 | Combined device of planet gear reducer and cycloid hydraulic motor |
| CN113833785A (en) * | 2020-06-24 | 2021-12-24 | 住友重机械工业株式会社 | Driver and brake |
-
2003
- 2003-06-06 CN CN 03231905 patent/CN2628809Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100460718C (en) * | 2006-02-15 | 2009-02-11 | 贺孝杰 | Combined device of planet gear reducer and cycloid hydraulic motor |
| CN113833785A (en) * | 2020-06-24 | 2021-12-24 | 住友重机械工业株式会社 | Driver and brake |
| US11668362B2 (en) | 2020-06-24 | 2023-06-06 | Sumitomo Heavy Industries, Ltd. | Actuator and brake |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040728 Termination date: 20120606 |