• 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:
    The invention relates to a tamping unit (1) for submerging sleepers (3) of a track (4), comprising opposing tamping tools (14, 17) which are each connected to a Beistellzylinder (9, 15) for generating a Beistellbewegung, wherein an eccentric drive (11) is provided for generating a vibratory movement. It is provided that a first auxiliary cylinder (9) is mechanically connected to the eccentric drive (11) and that a first pressure chamber (18) of the first auxiliary cylinder (9) with a second pressure chamber (20) of a second auxiliary cylinder (15) via a connecting line (22,27) is hydraulically connected to transmit in the first pressure chamber (18) by means of the eccentric drive (11) generated pressure change to the second pressure chamber (20).
    公开号:AT519219A4
    申请号:T533/2016
    申请日:2016-11-25
    公开日:2018-05-15
    发明作者:
    申请人:Plasser & Theurer Export Von Bahnbaumaschinen Gmbh；
    IPC主号:
    专利说明:

    description
    TECHNICAL FIELD The invention relates to a tamping unit for tamping sleepers on a track, comprising opposing tamping tools, each of which is connected to an auxiliary cylinder for generating an auxiliary movement, an eccentric drive being provided for generating a vibratory movement.
    PRIOR ART Tamping units for tamping sleepers of a track are already known several times, e.g. through AT 350 097 B. A rotatable eccentric shaft serves as the vibration exciter, on which the auxiliary drives are articulated to transmit the vibrations to the tamping tools. The advantage of a vibration drive with an eccentric lies in the energy balance of the overall system. Only as much energy is supplied as is removed from the tamping pick or what is lost due to friction in the system. Energy is stored on the eccentric in a flywheel or flywheel mass, which absorbs energy when the tamping pick is decelerated and returns to the dynamic system when the tamping pick accelerates (kinetic energy).
    In a hydraulic vibration drive known for example from EP 1 653 003 A2, a large proportion of the hydraulic energy is required to generate the vibrations. This disadvantage compared to a vibration drive with an eccentric overlaps the possible advantages such as a simpler control or a more compact design.
    SUMMARY OF THE INVENTION The object of the invention is to provide an improvement over the state of the art for a tamping unit of the type mentioned at the outset
    2.15
    9.2
    Specify technology. The object of the invention is in particular to create a compact design for tamping units.
    [05] According to the invention, this object is achieved by a tamping unit according to claim 1. Dependent claims relate to advantageous embodiments of the invention.
    The invention provides that a first auxiliary cylinder is mechanically connected to the eccentric drive and that a first pressure chamber of the first auxiliary cylinder is hydraulically connected to a second pressure chamber of a second auxiliary cylinder via a connecting line in order to change the pressure generated in the first pressure chamber by means of an eccentric drive to transfer to the second pressure chamber.
    [07] The main advantage here is the energy balance of the
    Overall system because the storage effect of the eccentric drive is used. This combines the advantages of the eccentric drive with the advantage of a compact design because an auxiliary cylinder can be arranged independently of the eccentric drive.
    An advantageous development of the invention provides that there is approximately the same power transmission ratio from the respective auxiliary cylinder to the associated tamping tool and that the two auxiliary cylinders are actuated in opposite directions. In this way, each mass has a counter mass that moves in opposite directions. The static mass balance achieved thereby minimizes vibrations and noise emissions. This creates a more pleasant working environment for the worker, as well as a low-noise use of the tamping unit in residential areas.
    [09] It is also expedient if the two auxiliary cylinders are aligned approximately horizontally, if the tamping tool assigned to the first auxiliary cylinder has a first mass moment of inertia with respect to a pivot axis, if the tamping tool assigned to the second auxiliary cylinder has a second mass moment of inertia with respect to a pivot axis and if both mass moments of inertia are aligned with one another are coordinated. In this way, a dynamic mass balance is ensured, which means that a
    3/15 • · ·· · ·
    3.9
    Unit suspension on a tamping machine transmitting vibration is minimized.
    Another advantageous embodiment of the invention is given in that the tamping unit is composed of several individual unit modules to form a multi-threshold unit. Due to the compactness of the individual unit modules, these can be cost-effectively combined to form multi-sleeper units. This has a positive impact on both the production and the maintenance of the individual modules. Each unit module is advantageously constructed identically with its own eccentric drive.
    In the case of two aggregate modules arranged next to one another, it can also make sense if two first auxiliary cylinders are mechanically connected to a common eccentric drive and if each first auxiliary cylinder is hydraulically connected to a second auxiliary cylinder.
    [12] A particularly advantageous embodiment provides that the connecting line is connected to a hydraulic system via a pressure orifice. The auxiliary force and vibration of the auxiliary cylinder are set via this pressure orifice.
    Another useful further development is realized in that an amplitude of an eccentric shaft is distributed uniformly between the two auxiliary cylinders. Instead of controlling one additional cylinder with two individual eccentrics, a double eccentric shaft can be used for both additional cylinders.
    [14] Further advantages of the invention result from the description of the drawing.
    BRIEF DESCRIPTION OF THE DRAWINGS [15] The invention is explained below by way of example with reference to the accompanying figures. Show it:
    1 is a simplified tamping unit,
    2 a tamping unit in modular design,
    Fig. 3 shows a course of the hydraulic connecting lines and
    4.15
    Fig. 4 shows a tamping unit in modular design with common
    Eccentric.
    4.9
    DESCRIPTION OF THE EMBODIMENTS [16] A tamping unit 1, shown in simplified form in FIG. 1, for tamping a ballast bed 2 below sleepers 3 of a track 4 has pairs of two opposing tamping tools 14, 17 which can be pivoted about a respective pivot axis 5. Specifically, a tamping pick 6 with a pick arm 8 is mounted on a tool carrier 7 as the respective tamping tool 14, 17 and connected to an auxiliary cylinder 9, 15.
    [17] A first auxiliary cylinder 9 is connected at a cylinder-side end 10 to a vibration drive designed as an eccentric drive 11 with a rotating eccentric shaft 12 and at a piston-side end 13 to a first tamping tool 14. A second auxiliary cylinder 15 is rotatably mounted on the tool carrier 7 on an axis of rotation 16 and is connected at its piston end 13 to a second tamping tool 17.
    The first auxiliary cylinder 9 has a first pressure chamber 18 and a third pressure chamber 19. The second auxiliary cylinder 15 has a second pressure chamber 20 and a fourth pressure chamber 21. The first pressure chamber 18 of the first auxiliary cylinder 9 is hydraulically connected to the second pressure chamber 20 of the second auxiliary cylinder 15 via a first connecting line 22 in order to transmit part of the vibration generated by the eccentric drive 11 to the second auxiliary cylinder 15.
    [19] The first and second auxiliary cylinders 9, 15 are connected to a constant pressure supply 23 of a hydraulic system. The first connecting line 22 is connected to the constant pressure supply 23 and a tank 25 via a servo valve or a proportional valve 24. An auxiliary pressure in the first pressure chamber 18 of the first auxiliary cylinder 9 and in the second pressure chamber 20 of the second auxiliary cylinder 15 is thus regulated.
    [20] In the first pressure chamber 18 of the first auxiliary cylinder 9, the auxiliary pressure is superimposed by one generated by the eccentric drive
    5.15
    5/9 oscillating pressure. This oscillating pressure is distributed over the two auxiliary cylinders 9, 15 via the first connecting line 22. Hydraulic fluid oscillates back and forth between the first pressure chamber 18 and the second pressure chamber 20, whereby a piston rod 29 of the second auxiliary cylinder 15 is also set in vibration. An outflow in the direction of the proportional valve 24 is prevented by a first pressure orifice 26.
    [21] The third pressure chamber 19 of the first auxiliary cylinder 9 is hydraulically connected to the fourth pressure chamber 21 of the second auxiliary cylinder 15 via a second connecting line 27. A volume compensation takes place via this second connecting line 27, which is necessary due to the increase in volume in the first and second pressure chambers 18, 20 during a supply process and the superimposed oscillation of the hydraulic fluid.
    [22] The second connecting line 27 is also connected to the constant pressure supply 23 and has a second pressure orifice 28 for pressure regulation. If the piston rods 29 of the auxiliary cylinders 9, 15 are pressed outwards during an ordering process and the tamping tools 6 are provided, a volume reduction inevitably occurs in the third pressure chamber 19 and in the fourth pressure chamber 21 and the hydraulic fluid is drained off via the second pressure orifice 28.
    [23] The coordinated dimensioning of the two auxiliary cylinders 9, 15 produces an equal auxiliary force and a uniform and symmetrical vibration of the tamping tools 6. The amplitude of the eccentric drive 11 resulting from the rotating eccentric shaft 12 is twice as high as in conventional eccentric units, since this total amplitude is divided between the two auxiliary cylinders 9, 15.
    [24] FIG. 2 shows a further embodiment variant of the tamping unit 1 for simultaneously tamping two sleepers 3 of the track 4. For this purpose, a first unit module 30 and a second unit module 31 are combined to form a two-door tamping unit. The tamping tools 14, 17 can be offset from one another in a cross-track direction in order to avoid a mutual collision.
    6.15
    6/9 [25] A preferred dimensioning of the tamping unit according to the invention is explained with reference to FIG. 2. For this purpose, radii n, r 2 of an upper pivot lever and a lower pivot lever of the first tamping tool 14 and radii r 3 , Γ4 of an upper pivot lever and a lower pivot lever of the second tamping tool 17 are defined with respect to the respective pivot axis.
    [26] For a static balance, these radii η, r 2 , r, r 4 should have the following relationship:
    ri / r 2 = r 3 / r 4
    Then, with the same dimensioned auxiliary cylinders 9, 15, the same auxiliary forces act on the ballast bed 2 to be compacted.
    [27] For a dynamic balance of an individual unit module 30, 31 of the tamping unit 1, a first moment of inertia 11 of the first tamping tool 14 about the assigned pivot axis 5 and a second moment of inertia I2 of the second tamping tool 17 about the associated pivot axis 5 must be observed.
    [28] The following condition must be met for a dynamic balance between the two tamping tools 6:
    ri / l 2 = Γ3 / Ι4
    Due to the approximately horizontal arrangement of the auxiliary cylinders 9, 15, all inertial forces are equalized.
    3 shows a course of the connecting lines 22, 27 in a combined tamping unit 1 from FIG. 2. For this purpose, as in FIG. 1, there is a first hydraulic connecting line 22, each on the cylinder side with the first auxiliary cylinders 9 and the second auxiliary cylinders 15 is connected. The second connecting line 27 connects the first auxiliary cylinders 9 to the second auxiliary cylinders 15 on the piston side.
    [30] Both first auxiliary cylinders 9 are either connected to a common eccentric drive 11 (FIG. 4) or each to a separate eccentric drive 11 (FIG. 2).
    7/15 • ·
    7.9
    权利要求:
    Claims (10)
    [1]
    1. tamping unit (1) for tamping sleepers (3) of a track (4), comprising opposing tamping tools (14, 17), each of which is connected to an auxiliary cylinder (9, 15) for generating an auxiliary movement, an eccentric drive (11 ) for generating a vibration movement, characterized in that a first auxiliary cylinder (9) is mechanically connected to the eccentric drive (11) and that a first pressure chamber (18) of the first auxiliary cylinder (9) is connected to a second pressure chamber (20) of a second The auxiliary cylinder (15) is hydraulically connected via a connecting line (22, 27) in order to transmit a pressure change generated in the first pressure chamber (18) by means of the eccentric drive (11) to the second pressure chamber (20).
    [2]
    2. tamping unit (1) according to claim 1, characterized in that there is approximately the same power transmission ratio from the respective auxiliary cylinder to the associated tamping tool (6) and that the two auxiliary cylinders are driven in opposite directions.
    [3]
    3. tamping unit (1) according to claim 1 or 2, characterized in that the two auxiliary cylinders (9, 15) are aligned approximately horizontally, that the first auxiliary cylinder (9) associated tamping tool with respect
    Pivot axis has a first mass moment of inertia, that the stuffing tool assigned to the second auxiliary cylinder has a second mass moment of inertia with respect to a pivot axis, and that both mass moments of inertia are matched to one another.
    [4]
    4. tamping unit (1) according to one of claims 1 to 3, characterized in that the tamping unit (1) is composed of a plurality of individual unit modules (30, 31) to form a multi-threshold unit.
    [5]
    5. tamping unit (1) according to claim 4, characterized in that two first auxiliary cylinders (9) with a common eccentric drive (11) mechanically
    [6]
    6. tamping unit (1) according to one of claims 1 to 3, characterized in that the connecting line (22, 27) is connected to a hydraulic system via a pressure orifice (26, 28).
    [7]
    7. tamping unit (1) according to one of claims 1 to 4, characterized in that an amplitude of an eccentric shaft (12) is divided equally between the two auxiliary cylinders (9, 15).
    [8]
    8/9 and that each first auxiliary cylinder (9) is hydraulically connected to a second auxiliary cylinder (15).
    8.15
    [9]
    9.15
    [10]
    10/15 ··· • ;; : · ·! . ···· * · ···· * «
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    US20190271119A1|2019-09-05|
    CN109983179B|2021-05-04|
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2587324A|1948-10-08|1952-02-26|Hursh|Ballast tamping apparatus|
    GB797044A|1954-11-17|1958-06-25|Plasser Bahnbaumasch Franz|Improvements in machines for consolidating the ballast bed under railway sleepers|
    DE1050357B|1955-12-23|
    AT258339B|1963-11-29|1967-11-27|Plasser Bahnbaumasch Franz|Hydraulically operated device for the opposite adjustment of tools of track tamping machines arranged opposite one another in pairs|
    AT339358B|1974-05-09|1977-10-10|Plasser Bahnbaumasch Franz|DRIVE AND CONTROL DEVICE FOR VIBRATING AND ADJUSTABLE TOOLS OF A TRACK MACHINE, IN PARTICULAR MOBILE TRACK PAD MACHINE|
    CA1051268A|1975-11-17|1979-03-27|Graystone Corporation|Track tamper and vibratory drive mechanism|
    AT350097B|1977-02-04|1979-05-10|Plasser Bahnbaumasch Franz|MACHINE FOR PLUGGING THE SLEEPERS OF A TRACK|
    AT359110B|1977-08-16|1980-10-27|Plasser Bahnbaumasch Franz|SELF-DRIVE TRACKING MACHINE ARRANGEMENT|
    RU2023784C1|1991-04-04|1994-11-30|Акционерное общество "Калужский завод путевых машин и гидроприводов"|Hydraulic system of tamping unit of sleeper tamping machine|
    JP2558439B2|1994-09-29|1996-11-27|大淀ヂ−ゼル株式会社|Positioning auxiliary device for tamping unit|
    AT500972B1|2004-10-29|2006-05-15|Plasser Bahnbaumasch Franz|METHOD FOR SUBSTITUTING THRESHOLD|
    CN101481895B|2008-01-12|2012-05-02|襄樊金鹰轨道车辆有限责任公司|Tamping apparatus|
    CN101775765B|2010-01-29|2012-01-25|浙江大学|Tamping device with independent hydraulic shock excitation and clamping movement|
    CN102061646B|2010-10-26|2012-04-18|浙江大学|Hydraulic excitation system of tamping device|
    CN102953300B|2011-08-30|2015-04-22|常州市瑞泰工程机械有限公司|Positive line double-pillow tamping device|
    AT513973B1|2013-02-22|2014-09-15|System7 Railsupport Gmbh|Tamping unit for a tamping machine|
    AT519219B1|2016-11-25|2018-05-15|Plasser & Theurer Export Von Bahnbaumaschinen Gmbh|Stopfaggregat for clogging thresholds of a track|AT518195B1|2016-01-26|2017-11-15|Plasser & Theurer Export Von Bahnbaumaschinen Gmbh|Method for compacting the ballast bed of a track and tamping unit|
    AT519219B1|2016-11-25|2018-05-15|Plasser & Theurer Export Von Bahnbaumaschinen Gmbh|Stopfaggregat for clogging thresholds of a track|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
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    ES17793570T| ES2827829T3|2016-11-25|2017-10-30|Batting group for tamping one-way sleepers|
    US16/345,007| US11053644B2|2016-11-25|2017-10-30|Tamping unit for tamping sleepers of a track|
    PCT/EP2017/001266| WO2018095558A1|2016-11-25|2017-10-30|Tamping unit for tamping sleepers of a track|
    CN201780072217.5A| CN109983179B|2016-11-25|2017-10-30|Tamping device for tamping sleepers of a track|
    EP17793570.7A| EP3545134B1|2016-11-25|2017-10-30|Tamping unit for tamping sleepers of a track|
    EA201900149A| EA038406B1|2016-11-25|2017-10-30|Tamping unit for tamping sleepers of a track|
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