• 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:
    1380549 Bucket wheel excavators O & K ORENSTEIN & KOPPEL AG 15 June 1973 [16 June 1972] 28603/73 Heading E1F A hydraulic operating system, for a mobile bucket excavator having a hydraulic motor 20 for driving a bucket wheel (7), Fig. 1 (not shown) carried by a jib (8) which may be swivelled about a vertical axis by a hydraulic motor 40, comprises respective digging and swivelling control means 23 and 44 for controlling the supply of pressure fluid from a first source, such as twin pumps 21, 22 and a second source, such as pump 42, to the motors 20 and 40, and first and second control means responsive to the resistance encountered by the buckets for automatically reducing the rate of fluid supply to the motors 20 and 40 respectively. The output of the twin pumps 21, 22 is limited by control devices 32, 33 in response to the fluid pressure in the supply lines to the motor 20. The pump 42 is controlled by a device 43 responsive to the pressure difference between lines 48a, 48b supplied from a source 54 through line 45 and swivel control means 44; the pressure in the line 45 is limited by control means 48, again responsive to the pressure in line 29c feeding the motor 20. The twin pumps 21, 22 include respective pumps 21a, 22a feeding the motor 20 directly and pumps 21b, 22b feeding it through slide valves 28a, 28b which may be set to divert fluid to hydraulic motors 30a, 30b to propel the excavator. The lines 48a, 48b may be vented by valves 53a, 53b controlled by limit switches operated by a cam disc on the jib (8) to prevent the jib colliding with discharge conveyor arm (14).
    公开号:SU709007A3
    申请号:SU731926241
    申请日:1973-06-07
    公开日:1980-01-05
    发明作者:Хойслер Хельмут；Альперс Гюнтер；Гербер Юрген
    申请人:Оренштейн Унд Коппель Аг (Фирма)；
    IPC主号:
    专利说明:

    one
    The device relates to hydraulic construction machinery.
    Known hydraulic excavator, including the hydraulic actuator actuators and feed them pumps 1.
    Also known is a hydraulic actuator of a rotor excavator, which includes hydraulic motors for driving the bucket wheel and turning the handle, feeding them with pressure hydraulic lines, a power regulator and a power line for its power supply, and an oil tank 2.
    However, the known hydraulic drives do not provide a sufficiently economical operation of the excavator.
    The purpose of the invention is to increase the economy of the work of the excavator.
    The purpose of the invention is achieved due to the fact that the steering motor is powered by closed circulation from a separate pump, the power regulator of which is equipped with a hydraulically controlled normally closed valve controlled by pressure hydraulic line of the bucket wheel drive hydraulic motor, connecting the power regulator with the oil tank.
    FIG. 1 shows the proposed excavator; in fig. 2 - excavator circuit.
    The rotor excavator includes the lower support part on the track 1, on which the upper part 2 is mounted, with the possibility of turning around axis 3 with the help of the plate motor 4. To the top part 2 the handle 5 is attached, which is driven in the vertical plane by the hydraulic motor 6. On the arm. 5 a bucket 8 is attached to a cowgirl wheel 7, which are driven by hydraulic motor 9. Hand 5 has a conveyor 10 for transporting the material to be removed, from which the material to be removed is loaded onto the loading conveyor M, located on the boom 12, driven vertically from the hydro-core 13.
    The support tracks are driven separately by hydraulic motors 14 and 15. The drive motors 14 and 15, as well as the drive motor, of the drive bucket 8 are powered by twin pumps 16 and 17 with power regulators, and the hydraulic distributors 18 and 19 and the unit 20 with distributor 25 and safety valve 22 is designed to control
    370
    these executive bodies. Rotation motor 4 is powered by a pump 23 with a power regulator 24, made in the form of a hydraulic cylinder 25 with a double-sided rod, the piston of which is spring-loaded springs 26, and the cavities with hydraulic lines 27 and 28 are connected to a manual control mechanism 29, which is hydroline powered by power regulator 30 from connected with power supply 31 and hydraulically controlled norm; valve with closed valve 32,
    which, in turn, is connected by hydroline 33 to the oil tank 34, and control hydroline 35 to the pressure line of the bucket 8 drive hydraulic motor. The cavities of the hydraulic cylinder of the regulator 24 are also connected by hydraulic / gyneses 27 and 28 to limit switches 36 and 37.
    Pumps 16, 17 and 23 are driven through a gearbox 38 by a driving motor 39.
    When the excavator operates, the distributors 18 and, 19 control its movement, and the hydraulic distributor 21 enables or disables the rotation of the bucket wheel 7 with the buckets 8.
    the handle of the manual control mechanism 29 controls the rotation of the upper part 2 of the excavator, and consequently, the rotation of the bucket wheel 7 with the buckets 8. The manual control mechanism 29 controls the hydraulic cylinder 25 and provides the change in pressure in the hydrolily 27 or 28 proportional to the angle of rotation of the handle, consequently, the supply of the pump 23 increases with increasing angle of rotation of the handle.
    With increasing resistance to digging pressure in the pressure line of the hydraulic motor
    drive of the bucket 8 is increased, the normally closed valve 32 opens and informs the supply line of the power regulator 30 with the oil tank, as a result of which hydrocyliol 25 reduces the performance of the pump 23 and the rotation of the handle 5 with the bucket wheel 7 slows down.
    Limit switches 36 and 37 limit the rotation of the handle 5.
    权利要求:
    Claims (2)
    [1]
    1. USSR author's certificate number 155139, cl. E 02 F 9/22, 1962.
    [2]
    2. USSR author's certificate number 239975, cl. E 02 F 9/22, 1969 (prototype).
    类似技术:
    公开号 | 公开日 | 专利标题
    US2103530A|1937-12-28|System of equalizing the lifting speed of differently loaded hydraulic jacks
    US3888542A|1975-06-10|Road planing machines
    CA1256070A|1989-06-20|Earth moving machine
    US4318451A|1982-03-09|Dual function remote steering control
    US3018010A|1962-01-23|Hydraulic system for digging machines
    US2768499A|1956-10-30|Hydraulic system comprising multiple pump and ram units
    SU709007A3|1980-01-05|Hydrodrive of rotor excavator
    US3087636A|1963-04-30|Machine control
    US6618967B2|2003-09-16|Work machine control for improving cycle time
    US3978998A|1976-09-07|Fast hoist control system
    US3554395A|1971-01-12|Crane
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    US20210207344A1|2021-07-08|Hydraulic system for increasing operation speed of construction machinery boom
    US4500250A|1985-02-19|Backhoe swing mechanism
    US4275902A|1981-06-30|Crane or excavator with auxiliary mechanism for transferring superstructure loads to the ground
    US2641070A|1953-06-09|Endless conveyer ditching machine
    US4899841A|1990-02-13|Leveling assembly for a work vehicle
    US3210123A|1965-10-05|Side swinging type mining machine having cutter drum and chain
    US3282441A|1966-11-01|Hydraulic system for swinging a crane boom
    US3945138A|1976-03-23|Hydraulically controlled and driven bucket wheel dredge
    US3897640A|1975-08-05|Excavator, conveyor and conveyor control apparatus
    US3285432A|1966-11-15|Hydraulic system for operating a crane winch
    US3720332A|1973-03-13|Hydraulic systems
    SU810915A1|1981-03-07|Twin-circuit hydraulic drive of excavator with telescopic boom
    GB1260753A|1972-01-19|A fluid-pressure control system for dual motors
    同族专利:
    公开号 | 公开日
    FR2189589A1|1974-01-25|
    FR2189589B1|1976-06-11|
    DK133703B|1976-07-05|
    BR7304458D0|1974-09-05|
    AU5689973A|1974-10-31|
    AU454355B2|1974-10-31|
    DE2229347A1|1973-09-27|
    DD105640A5|1974-05-05|
    JPS4963203A|1974-06-19|
    BR7204458D0|1974-09-05|
    JPS525762B2|1977-02-16|
    CA984418A|1976-02-24|
    DE2229347B1|1973-09-27|
    DK133703C|1976-11-22|
    PL78518B1|1975-06-30|
    GB1380549A|1975-01-15|
    IT985695B|1974-12-10|
    ZA734063B|1974-06-26|
    NL7308390A|1973-12-18|
    CS202536B2|1981-01-30|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE1188891B|1958-06-26|1965-03-11|Richard Breinlich Dr|Hydrostatic drive device|
    DE1952034A1|1969-10-15|1971-04-22|Linde Ag|Control device for a hydraulic system and valve for this|FR2484664B1|1980-06-12|1984-12-28|Bec Freres Sa|
    GB8423420D0|1984-09-17|1984-10-24|Doyle G H|Excavator with cutting wheel assembly|
    US10119556B2|2015-12-07|2018-11-06|Caterpillar Inc.|System having combinable transmission and implement circuits|
    CN106743725A|2016-12-21|2017-05-31|北方重工集团有限公司|A kind of flake type bucket bottom feeding bucket|
    CN111559650B|2019-02-14|2021-12-07|南通奥普机械工程有限公司|Horizontal bucket-wheel stacker-reclaimer and reclaiming method thereof|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19722229347|DE2229347C2|1972-06-16|Hydraulically controlled and powered bucket wheel excavator|
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