• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A two-speed transmission with hydraulic actuation of the shifting operations under load for hydrostatically operated work machines, particularly caterpillar-track excavators, having a planetary gearing provided with double planet gears, and having packs of discs which are arranged coaxially around the axis of the sun gear of the planet gearing and which act as a clutch or as a brake, respectively. The planet carrier of the planetary gearing is formed as a flywheel and the shifting step of the transmission which serves for starting the work machine is shifted by means of compression springs, and the parking brake, biased by springs, connects the clutch and the brake non-rotatably relative to the housing of the transmission.
    公开号:SU1308204A3
    申请号:SU813242795
    申请日:1981-01-30
    公开日:1987-04-30
    发明作者:Волфф Фридрих
    申请人:О Унд К@ Оренштайн Унд Коппель Аг (Фирма)；
    IPC主号:
    专利说明:

    in the form of a flywheel, and the hydraulic control system 14, the clutch 4 and the brake 5 are kinematically connected with each other and with the hydraulic system so that when switching speeds
    The invention relates to mechanical engineering and can be used as a two-stage gearbox with a hydraulic drive for hydrostatically driven working machines, in particular, in tracked excavators.
    The purpose of the invention is to increase reliability when using the box in tracked excavators by preventing it from stopping during gear shifting.
    The drawing schematically shows a two-stage gearbox, a longitudinal section.
    A two-stage gearbox with a hydraulic drive for hydraulically driven working machines includes body 1, inlet 2 and output 3 shafts, clutch 4 and brake 5, made in the form of a set of plates, three-link planetary gear with two-tiered satellites 6, one link 7 of which performed in the form of a flywheel and connected to the output shaft 3, another link 8 is connected to the input shaft 2 and through the coupling 4 is connected to the third link 9 connected to the brake 5 located between the clutch 4 and the brake 5 push rod 10 bilateral action complement Push-pull washer 11 placed inside the coupling 4 and installed between the push-washers 10 and 11 spring 12 of the legs, holding the brake 5 in the normally open position, interacting with the additional pushing washer 11 pushing the rod 13 to turn on the coupling 4 and controlling the hydraulic system 14 kinematically tied with thrust washer 10 and thrust rod 13.
    The kinematic connection of the pressure washer 10 with the hydraulic system is made in the form of a piston 15, a thrust bearing 16 and a pressure bolt 17, transmitting the simultaneous smooth release of the brake and engagement of the clutch. With simultaneous engagement of the clutch and brake, the gearbox operates in a hundred night brake mode. 1 il.
    0
    five
    five
    Q 5 o 40
    45
    the oil going through channel 18 from the running valve 19. The kinematic connection of the pressure rod 13 to the hydraulic system includes a piston 21 spring-loaded by the elastic element 20 and connected by an oil supply channel 22 to the road valve 23. There is a cavity between the pressure rod 13 and the additional pressure washer 11 24, hydraulically coupled by channel 22 to the directional valve 23. The hydraulic system comprises reservoirs 25 and 26, respectively, connected to the directional valves 19 and 23, as well as the feed pump 27. The input shaft 2 is connected to the engine 28.
    Two-stage gearbox works as follows.
    As a result of the box control, three modes of its operation are realized: the first speed, the second speed, and the one hundred night brake mode.
    To enable the first speed, the channel 18 must be connected via the travel valve 19 to the tank 25. In this case, the clutch 4 is off and the brake 5 is under the action of the compression spring 12 and as a result, the link 9 is braked on the casing 1. The first speed corresponds to a reduction gear.
    The second speed is activated as follows. The channel 18 is connected to the pump 27 via the shaft valve 19. The force from the oil pressure on the piston 15 is transmitted through the thrust bearing 16 to the pressure bolt 17. The latter, compressing the spring 12, simultaneously releases the brake 5 and, acting on the pressure washer 10, engages the coupling 4. Here, the links 8 and 9 of the planetary gear unit are connected to each other, which corresponds to the direct mode.
    To activate the hundred night brake mode, the cavity 24 through channel 22 and the running valve 23 is connected to a tank 26, and channel 18 to a tank 25, respectively. The piston 21 of the node 21 then transmits pressure to the push rod 13 via an elastic element the thrust washer 11 includes a clutch 4 and a brake 5. Thus, the interconnected links 8 and 9 of the planetary gearbox are braked onto the housing.
    This embodiment of the gearbox provides a smooth and fast switching speeds, which increases its reliability in operation.
    权利要求:
    Claims (1)
    [1]
    Invention Formula
    A two-stage gearbox with a hydraulic drive for hydraulically driven working machines, comprising a housing, input and output shafts, a clutch and a brake, made in the form of a set of plates, a three-stage planetary gear with two engines M. Petrov 1646/59
    Compiled by O. Kosarev Tehred V. Kadar
    Cor Pod
    Circulation 812 VNISHI USSR State Committee
    for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5
    Production and printing company, Uzhgorod, Projecto st., 4
    satellites, one link of which is connected to the output shaft, the other one - to the input shaft and through the coupling - to the third link connected to the brake, a push-pull double-acting puck between the clutch and the brake, which is kinematically connected to the last hydraulic control system, ,
    that, in order to increase reliability
    when used in crawler excavators, it is provided with an additional push washer placed inside the clutch and installed between the main and additional thrust washers with a compression spring that holds the brake in the normally engaged position and 1 m interacting with an additional push washer of the clutch push rod connected kinematically connected control system, and the planetary gear unit connected to the output shaft is made in the form of a flywheel.
    Proofreader A.Zimokosov Subscription
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    同族专利:
    公开号 | 公开日
    CA1155685A|1983-10-25|
    FR2475177A1|1981-08-07|
    US4407399A|1983-10-04|
    FR2475177B1|1984-06-29|
    DE3003831A1|1981-08-06|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB137205A|1919-04-12|1920-01-08|Robert Linlsay|Improvements in or relating to variable speed gears|
    DE872435C|1940-11-01|1953-04-02|Daimler Benz Ag|Gear shift device for transmission, consisting of two friction clutches, in particular multi-disc clutches|
    DE1256021B|1961-07-17|1967-12-07|Berliet Automobiles|Two-speed gearbox with epicyclic gear|
    SE327633B|1968-02-15|1970-08-24|Malmsvets Ab|
    DE1938452A1|1969-07-29|1971-02-11|Eckardt Ag J|Capillary connection|
    US4122926A|1976-12-02|1978-10-31|Gulf & Western Manufacturing Company|Fluid operated clutch and brake|
    US4098148A|1976-12-08|1978-07-04|Borg-Warner Corporation|Transmission controls|
    US4181042A|1976-12-13|1980-01-01|Trw Inc.|Drive assembly|
    US4296650A|1979-06-25|1981-10-27|Eaton Corporation|Two-speed transaxle|WO1990012227A1|1989-04-07|1990-10-18|Zahnradfabrik Friedrichshafen Ag|Drive device with gearbox|
    DE3925064A1|1989-07-28|1991-01-31|Bayerische Motoren Werke Ag|Selector lever for motor vehicle gearbox - engages individual gear electronic gear control and is moved in two operating planes at right angles|
    US5194057A|1992-01-24|1993-03-16|Sommer Company|Two speed press drive|
    US5249655A|1992-08-31|1993-10-05|Ford Motor Company|Control and actuation system for hydraulically actuated clutch and brake|
    US5716299A|1994-11-22|1998-02-10|Midwest Brake Bond Company|Two speed drive incorporating reverse|
    US5697862A|1996-01-31|1997-12-16|Midwest Brake Bond Company|Two-speed press drive|
    IT1313889B1|1999-12-17|2002-09-24|S O M S P A|MOTORWHEEL FOR DRIVING THE DRIVE WHEEL OF AN INDUSTRIAL VEHICLE AND SIMILAR.|
    US7357752B2|2001-08-15|2008-04-15|Caterpillar Inc.|Power train system having creeper module|
    DE102004055960A1|2004-11-19|2006-05-24|Zf Friedrichshafen Ag|Parking brake and method for operating a parking brake|
    EP2820326B1|2012-02-29|2018-05-16|Auburn Gear, Inc.|Multispeed drive unit|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19803003831|DE3003831A1|1980-02-02|1980-02-02|TWO-SPEED MANUAL TRANSMISSION WITH HYDRAULIC OPERATION OF THE GEARBOX UNDER LOAD|
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