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公开(公告)号：US11479922B2
公开(公告)日：2022-10-25
申请号：US16641762
申请日：2018-09-03
发明人： Lothar Stadler
摘要： A track maintenance machine for compaction of ballast under sleepers of a track includes a machine frame movable by undercarriages on the track and a tamping unit which includes an electric vibration drive for vibratory actuation of tamping tools. An electric intermediate circuit has an electric energy store or storage device. An electric machine is associated with at least one undercarriage and coupled for generator operation to the intermediate circuit. The electric vibration drive is coupled to the intermediate circuit for supply. In this way, braking energy is used in an optimal manner for supplying the vibration drive. A method for operation of a track maintenance machine is also provided.
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公开(公告)号：US20220235521A1
公开(公告)日：2022-07-28
申请号：US17613590
申请日：2020-04-23
发明人： Markus QUITTNER , Harald DAXBERGER , Reinhard BÖCK
IPC分类号： E01B35/00 , G05B19/042 , G01H3/06
摘要： A method for controlling/regulating a rotatory drive of a working unit of a track maintenance machine includes using a sensor to record a measurement parameter with an approximately periodic history function derived from a rotation of the drive. A frequency or period duration of the history function is determined with an evaluation device, and the frequency or period duration is compared with a target parameter for stipulating a control signal. A number of time-discrete measurement values is formed for the measurement parameter and an auto-correlation of these measurement values is carried out by a calculation unit for determining the frequency or the period duration. As compared to a conventional method with zero stage recording, a precise recording of frequency changes is therefore also possible between two zero stages. A device for carrying out the method is also provided.
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公开(公告)号：US11203839B2
公开(公告)日：2021-12-21
申请号：US16330460
申请日：2017-08-09
发明人： Herbert Woergoetter
IPC分类号： E01B31/12
摘要： A rail treatment machine, mobile on a track, for removing irregularities on a rail head surface of at least one rail of a laid track, includes a machine frame supported on a front on-track undercarriage and a rear on-track undercarriage, as seen in a working direction. A tool frame accommodates at least one tool carrier. A rear end of the tool frame is articulated on the rear on-track undercarriage in an articulation point on a vertical axis of rotation. A front end of the tool frame is supported on a separate on-track undercarriage situated between the front on-track undercarriage and the rear on-track undercarriage.
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公开(公告)号：US10563358B2
公开(公告)日：2020-02-18
申请号：US15744465
申请日：2016-07-22
发明人： Florian Hoefler
IPC分类号： E01B27/16
摘要： Two squeezing drives, each connected via a joint to a tamping tine of a tamping unit, are connected to one another—unchangeably with regard to their position relative one another—to form a drive unit. The latter has a sliding bearing, situated between the two joints, which is freely movable in vertical direction in a bearing guide connected to the tine carrier.
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公开(公告)号：US20200048053A1
公开(公告)日：2020-02-13
申请号：US16341331
申请日：2017-10-06
摘要： The invention relates to a rail vehicle (1) having a machine frame (2) supported on on-track undercarriages (4), on both sides of which are arranged—in the longitudinal direction (3) of the rail vehicle—crane rails (8) for a mobile gantry crane (11). In this, for lifting or lowering of the gantry crane (11), a crane rail section (12) of the respective crane rail (8) is arranged to be vertically adjustable by a drive (18). In this manner, contrary to the prior art, a higher gantry crane (11) can be used without violating a given clearance profile during transfer travel.
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公开(公告)号：US20190271120A1
公开(公告)日：2019-09-05
申请号：US15779206
申请日：2016-11-02
发明人： HEINZ SPRINGER
摘要： A tamping machine for tamping a track has a lifting-lining unit, connected to lifting and lining drives, for shifting the track into a target position. A vibration generator, which can be set to vibrate, is disposed on the lifting-lining unit. It is thereby possible to tamp a track section in a first working pass and to lower it in a controlled way in an immediately following second working pass with constant impact of vertical load and vibration. Thereafter, the track can be traveled upon with normal speed entirely unhindered.
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公开(公告)号：US10363947B2
公开(公告)日：2019-07-30
申请号：US15551089
申请日：2016-03-15
发明人： Manfred Brunninger
摘要： A storage wagon (1) for bulk material (2) has, above the transfer end (9) of a bottom conveyor belt (4) and underneath a discharge end (15) of an auxiliary conveyor belt (14), a deflector plate (17) extending perpendicularly to the longitudinal direction (3) of the wagon. The deflector plate (17) is designed to be pivotable about a pivot axis (18) relative to the loading container (5) for changing a deflection angle α enclosed with a conveying plane (19) of the bottom conveyor belt (4).
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公开(公告)号：US20190153677A1
公开(公告)日：2019-05-23
申请号：US16314755
申请日：2017-07-06
发明人： Lothar STADLER , Gerard LINTZ
IPC分类号： E01B29/02
摘要： A track maintenance wagon (1) for picking up and/or laying a track panel (10), comprising a wagon frame (2) supported on on-track undercarriages (4), wherein two longitudinal beams (7) of the wagon frame (2) delimit a free opening and are transversely displaceable relative to one another, so that the free opening is changeable as to its width and, in a working position, has greater opening dimensions as a horizontal projection of the track panel (19), and wherein crane rails (8) are arranged on the longitudinal beams (7) for a gantry crane (11) mobile in the longitudinal direction (3) of the wagon. In this, buffers (13) are arranged at two free ends (12) of the longitudinal beams (7).
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公开(公告)号：US20190144008A1
公开(公告)日：2019-05-16
申请号：US16099534
申请日：2017-05-26
IPC分类号： B61C9/18
摘要： A rail vehicle having a vehicle frame supported on on-track undercarriages and a hydraulic drive system powered by a motor. The drive system comprises a hydrodynamic drive associated with a first on-track undercarriage as well as a hydrostatic drive associated with a second on-track undercarriage. With the latter is associated a drive pump connected to a drive motor. The motor is designed for a higher power output than is necessary for the operation of the hydrodynamic drive. A pump distribution gear is switched between the motor and the hydrodynamic drive, via which the drive pump of the hydrostatic drive can be connected. This takes place in dependence on a friction value μ between the rail and wheel.
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公开(公告)号：US10208432B2
公开(公告)日：2019-02-19
申请号：US15506571
申请日：2015-09-24
发明人： Georg Seyrlehner
摘要： In a tamping unit for tamping sleepers of a track, both squeezing drives of a tamping tine pair are articulatedly connected to a common connecting carrier. A vibration exciter fastened to the tine carrier is connected to the connecting carrier, likewise fastened to the tine carrier, for transmission of tamping tine vibrations from the connecting carrier to the squeezing drives and the tamping tines.
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