NL2021615B1 - Suction excavator pump transmission, suction excavator and method for operating a suction excavator - Google Patents

Suction excavator pump transmission, suction excavator and method for operating a suction excavator Download PDF

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Publication number
NL2021615B1
NL2021615B1 NL2021615A NL2021615A NL2021615B1 NL 2021615 B1 NL2021615 B1 NL 2021615B1 NL 2021615 A NL2021615 A NL 2021615A NL 2021615 A NL2021615 A NL 2021615A NL 2021615 B1 NL2021615 B1 NL 2021615B1
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NL
Netherlands
Prior art keywords
suction excavator
drive
suction
pump
excavator pump
Prior art date
Application number
NL2021615A
Other languages
English (en)
Other versions
NL2021615A (en
Inventor
Sfar Mohamed
Krause Uwe
Beinlich Silvia
Hesselmann Christoph
Original Assignee
Renk Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Renk Ag filed Critical Renk Ag
Publication of NL2021615A publication Critical patent/NL2021615A/nl
Application granted granted Critical
Publication of NL2021615B1 publication Critical patent/NL2021615B1/nl

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H3/087—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
    • F16H3/089—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears all of the meshing gears being supported by a pair of parallel shafts, one being the input shaft and the other the output shaft, there being no countershaft involved
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/021—Units comprising pumps and their driving means containing a coupling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0066—Control, e.g. regulation, of pumps, pumping installations or systems by changing the speed, e.g. of the driving engine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
    • F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/202—Mechanical transmission, e.g. clutches, gears
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H2003/0818—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts comprising means for power-shifting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
    • F16H2200/0034—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising two forward speeds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/20—Transmissions using gears with orbital motion
    • F16H2200/203—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
    • F16H2200/2035—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes with two engaging means

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Earth Drilling (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Description

Octrooicentrum
Θ 2021615
Figure NL2021615B1_D0001
(2?) Aanvraagnummer: 2021615 (22) Aanvraag ingediend: 13 september 2018
Int. Cl.:
E02F 3/88 (2019.01) E02F 3/90 (2019.01) E02F 9/20 (2019.01)
(30) Voorrang: 0 Octrooihouder(s):
21 september 2017 DE 10 2017 121 860.2 Renk Aktiengesellschaft te Augsburg,
Bondsrepubliek Duitsland, DE.
0 Aanvraag ingeschreven:
26 maart 2019 0 Uitvinder(s):
Mohamed Sfar te Horstel (DE).
0 Aanvraag gepubliceerd: Uwe Krause te Mettingen (DE).
27 maart 2019 Silvia Beinlich te Rheine (DE).
Christoph Hesselmann te Rheine (DE).
0 Octrooi verleend:
18 juli 2019
0 Gemachtigde:
0 Octrooischrift uitgegeven: ir. P.J. Hylarides c.s. te Den Haag.
18 juli 2019
54) Suction excavator pump transmission, suction excavator and method for operating a suction excavator
57) A suction excavator pump transmission (2) of a suction excavator (1), with a driveshaft (5), to which a drive motor (4) can be coupled, with an output shaft (6) to which a pump impeller of a suction excavator pump (3) can be coupled, wherein on the driveshaft (5) drive-side gearwheels (7, 8) are rotatably mounted, wherein on the output shaft (8) output-side gearwheels (9, 10) are mounted in a rotationally fixed manner, and wherein a clutch (13, 14) interacts in each case with each drive-side gearwheel (7, 8) in such a manner that in particular when the respective clutch (13, 14) is closed, the respective drive-side gearwheel (7, 8) is coupled to the driveshaft (5) in a rotationally fixed manner, whereas in particular when the respective clutch (13, 14) is opened, the respective drive-side gearwheel (7, 8) is freely rotatable (1 Relative to the driveshaft (5j.
NL B1 2021615
Dit octrooi is verleend ongeacht het bijgevoegde resultaat van het onderzoek naar de stand van de techniek en schriftelijke opinie. Het octrooischrift komt overeen met de oorspronkelijk ingediende stukken.
Suction excavator pump transmission, suction excavator and method for operating a suction excavator
The invention relates to a suction excavator pump transmission, a suction excavator and a method for operating a suction excavator.
A suction excavator is a machine which serves for extracting mineral building materials or raw materials. Suction excavators comprise a suction excavator pump which serves for extracting mineral building materials or raw materials by pumping. The suction excavator pump can be driven from a drive motor, wherein between the drive motor and a pump impeller of the suction excavator pump, typically a suction excavator pump transmission is connected. The output shaft of the suction excavator pump transmission serves as driveshaft for the suction excavator pump, wherein the pump impeller of the suction excavator pump is directly mounted to the output shaft of the suction excavator pump transmission. DE 100 34 195 Cl discloses the fundamental construction of a suction excavator pump.
Suction excavator pump transmissions known from practice, can provide multiple transmission ratios wherein it is possible to mechanically shift between the transmission ratios of the suction excavator pump transmission by means of a shifting ring and a shifting linkage. In suction excavator pump transmissions known from practice, the shifting between the transmission ratios of the suction excavator pump transmission can be exclusively effected with the suction excavator in the stationary state. Because of this, the possible applications of a suction excavator and the availability of the same are limited. There is a need for increasing the possible applications and the availability of a suction excavator.
Starting out from this, the present invention is based on the object of creating a new type of suction excavator pump transmission, a suction excavator having such a suction excavator pump transmission and a method for operating a suction excavator.
This object is solved through a suction excavator pump transmission according to Claim 1. According to the invention, drive-side gearwheels are rotatably mounted on the driveshaft. On the output shaft, output-side gearwheels are mounted in a rotationally fixed manner. The drive-side gear wheels together with the output-side gearwheels form transmission stages of the suction excavator pump transmission. A clutch interacts with each drive-side gearwheel in each case in such a manner that in particular when the respective clutch is closed, the respective drive-side gearwheel is coupled to the driveshaft in a rotationally fixed manner, whereas in particular when the respective clutch is opened, the respective drive-side gearwheel is freely rotatable relative to the driveshaft.
The suction excavator pump transmission according to the invention allows a shifting between the transmission stages of the suction excavator pump transmission with the suction excavator running under load. By way of this it is possible to dynamically change between the transmission stages of the suction excavator pump transmission. Ultimately, the possible applications of the suction excavator and the availability of the suction excavator are increased because of this.
According to an advantageous further development of the invention, the clutches are designed as frictionally engaged clutches, preferentially as multiple-disc clutches. The use of frictionally engaged multiple-disc clutches as shiftable clutches of the suction excavator pump transmission is particularly preferred in order to make possible the dynamic shifting between the transmission stages of the suction excavator pump transmission with low susceptibility to wear.
According to an advantageous further development of the invention, the drive-side gearwheels are directly and preferentially permanently in mesh with the output-side gearwheels. The drive-side gearwheels and the output-side gearwheels are not shifted relative to one another as a result of which the reliability of the shifting is increased.
According to an advantageous further development of the invention, bearings for the rotatable mounting of the drive-side gearwheels on the driveshaft act on the drive-side wheels and a housing. Since the bearings between the drive-side gearwheels and the housing are not formed between the drive-side gearwheels and the driveshaft, support bearings between the gearwheels and the driveshaft are not needed. Because of this, the reliability and availability of the suction excavator pump transmission and thus ultimately of the suction excavator are increased since support bearings that are susceptible to wear can be omitted.
The suction excavator according to the invention is defined in Claim 7. Methods according to the invention for operating a suction excavator are defined in Claims 8 and 9.
Preferred further developments of the invention are obtained from the subclaims and the following description. Exemplary embodiments of the invention are explained in more detail by way of the drawing without being restricted to this. There it shows:
Fig. 1: a schematic representation of a suction excavator according to the invention with a suction excavator pump transmission according to the invention.
The invention present here relates to a suction excavator pump transmission and to a suction excavator and to a method for operating the suction excavator.
Fig. 1 shows schematically a suction excavator 1 with a suction excavator pump transmission 2 according to the invention, a suction excavator pump 3 and a drive motor 4. The suction excavator pump transmission 2 comprises a driveshaft 5 to which the drive motor 4 is coupled. Furthermore, the suction excavator pump transmission 2 comprises an output shaft 6, to which the suction excavator pump 3 is coupled, namely a pump impeller of the suction excavator pump 3 which is not shown in the detail.
On the driveshaft 5 of the suction excavator pump transmission 2, drive-side gearwheels 7, 8 are rotatably mounted. Accordingly, Fig. 1 shows that the drive-side gearwheels 7, 8 are rotatably mounted via hollow shafts 11, 12 on the driveshaft 5 which is preferentially designed as solid shaft.
On the output shaft 6, output-side gearwheels 9, 10 are mounted in a rotationally fixed manner. The output-side gearwheels 9, 10 and the drive-side gearwheels 7, 8 are in mesh, namely directly and permanently subject to forming transmission stages.
In the exemplary embodiment shown in Fig. 1, the inter-meshing gearwheels 7, 9 form a first transmission stage and the inter-meshing gearwheels 8, 10 form a second transmission stage of the suction excavator pump transmission 2. More than two such transmission stages can also be present, wherein more than two inter-meshing pairs of gearwheels 7, 9 and 8, 10 respectively are then present.
Each drive-side gearwheel 7, 8 is assigned a clutch 13, 14 in each case, namely in such a manner that a clutch 13, 14 interacts with each drive-side gearwheel 7, 8 in each case.
In particular when the respective clutch 13, 14 is closed, the respective drive-side gear wheel 7, 8 is coupled to the driveshaft 2 in a rotationally fixed manner. In particular when, by contrast, the respective clutch 13, 14 is opened, the respective drive-side gearwheel 7, 8 is freely rotatable relative to the driveshaft 2.
Thus, when the clutch 13 interacting with the drive-side gearwheel 7 is opened, the drive-side gearwheel 7 is freely rotatable relative to the driveshaft 5. When, by contrast, the clutch 13 is closed, the drive-side gearwheel 7 is coupled to the driveshaft 5 in a rotationally fixed manner. When the clutch 14 is closed, the drive-side gearwheel 8 is coupled to the driveshaft 5 in a rotationally fixed manner, wherein with opened clutch 14 the drive-side gearwheel 8 is freely rotatable relative to the driveshaft 5.
The rotatable mounting of the drive-side gearwheels 7, 8 on the driveshaft 5 is effected via bearings which act on the drive-side gearwheels 7 and on a housing 15. Thus, support bearings between the driveshaft 5 and the drive-side gearwheels 7, 8 can be omitted.
The suction excavator pump transmission 2 according to the invention allows dynamic power shifting or changing between transmission stages. To this end, the clutches 13, 14 are preferentially designed as frictionally engaged multiple-disc clutches. The shifting between the transmission stages of the suction excavator pump transmission 2 is possible in any situation. For shifting between transmission stages, changing between the transmission ratio of the suction excavator pump transmission 2 with running pump impeller of the suction excavator pump 3 and with suction excavator pump transmission 2 under load is preferentially effected in such a manner that the clutch 13 and 14 respectively of the currently load-transmitting transmission stage is opened and the clutch 14 and 13 respectively of the transmission stage not currently transmitting load is closed. This is preferentially effected in an overlapping manner so that it is possible to change between the transmissions stages of the suction excavator pump transmission 2 without interrupting the drive torque for the suction excavator pump 3.
In terms of the invention it is also possible to completely disconnect the drive motor 4, namely by opening all clutches 13, 14 assigned to the drive-side gearwheels 7, 8, so that all drive-side gearwheels 7, 8 can then freely rotate relative to the driveshaft of the suction excavator pump transmission 2. A shifting clutch at the transmission input or between suction excavator pump transmission 2 and drive motor 4 can be omitted.
List of reference numbers
Suction excavator
Suction excavator pump transmission
Suction excavator pump
Drive motor
Driveshaft
Output shaft
Gearwheel
Gearwheel
Gearwheel
Gearwheel
Ring gear
Ring gear
Clutch
Clutch
Housing

Claims (10)

  1. Conclusies
    1. Een zuiggraafmachinepompoverbrenging (2) van een zuiggraafmachine (1), met een aandrijfas (5), aan welke een aandrijfmotor (4) gekoppeld kan worden, met een uitgangsas (6), aan welke een pompwaaier van een zuiggraafmachinepomp (3) kan worden gekoppeld, met het kenmerk dat aandrijf-zijdetandwielen (7,8) roteerbaar zijn gemonteerd aan de aandrijfas (5), uitgangs-zijdetandwielen (9,10) aan de uitgangsas (6) op een rotatiebepaalde wijze zijn gemonteerd, een koppeling (13, 14) interacteert in elk geval met elk aandrijfzijdetandwiel (7,8) op zodanige wijze dat in het bijzonder wanneer de respectievelijke koppeling (13, 14) gesloten is, de respectievelijke aandrijf-zijdetandwiel (7,8) is gekoppeld aan de aandrijfas (5) op een rotatiebepaalde wijze, terwijl in het bijzonder wanneer de respectievelijke koppeling (13, 14) open is, de respectievelijke aandrijf-zijdetandwiel (7,8) vrij roteerbaar is ten opzichte van de aandrijfas (5).
  2. 2. De zuiggraafmachinepompoverbrenging volgens conclusie 1, met het kenmerk dat de koppelingen (13, 14) als wrijvingsgedreven koppelingen ingericht zijn.
  3. 3. De zuiggraafmachinepompoverbrenging volgens conclusie 2, met het kenmerk dat de koppelingen (13, 14) als meervoudige-schij venkoppelingen ingericht zijn.
  4. 4. De zuiggraafmachinepompoverbrenging volgens één van de conclusies I tot 3, met het kenmerk dat elke aandrijf-zijdetandwiel (7,8) direct in elkaar grijpt met een uitgangszijdetandwiel (9,10) in elk geval.
  5. 5. De zuiggraafmachinepompoverbrenging volgens één van de conclusies 1 tot 4, met het kenmerk dat de aandrijf-zijdetandwielen (7,8) permanent in elkaar grijpen met de uitgangszijdetandwielen (9,10).
  6. 6. De zuiggraafmachinepompoverbrenging volgens één van de conclusies 1 tot 5, met het kenmerk dat lagers voor de roteerbaar montering van de aandrijf-zijdetandwielen (7,8) op de aandrijfas (5) inwerken op de aandrijf-zijdetandwielen (7,8) en een behuizing (15).
  7. 7. De zuiggraafmachinepomp (1), met een aandrijfas (5), aan welke een aandrijfmotor (4) gekoppeld is, met een uitgangsas (6), aan welke een pompwaaier van een zuiggraafmachinepomp (3) gekoppeld is, waarbij tussen de aandrijfas (5) en de uitgangsas (6) een zuiggraafmachinepompoverbrenging (3) volgens één van de conclusies 1 tot 5 is gekoppeld.
  8. 8. Een werkwijze voor het bedrijven van een zuiggraafmachinepomp (1) volgens conclusie 7, waarbij met een werkende zuiggraafmachinepomp (3) en last-overbrengende
    5 zuiggraafmachinepompoverbrenging (2) verandering wordt uitgevoerd tussen overbrengingsverhoudingen van de zuiggraafmachinepompoverbrenging (2).
  9. 9. De werkwijze voor het bedrijven van een zuiggraafmachinepomp (1) volgens conclusie 7, waarbij bij het openen van alle koppelingen (13, 14) de aandrijfmotor (4) ontkoppeld
  10. 10 wordt.
    1/1
    Λ y csj
NL2021615A 2017-09-21 2018-09-13 Suction excavator pump transmission, suction excavator and method for operating a suction excavator NL2021615B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017121860.2A DE102017121860A1 (de) 2017-09-21 2017-09-21 Saugbaggerpumpengetriebe, Saugbagger und Verfahren zum Betreiben eines Saugbaggers

Publications (2)

Publication Number Publication Date
NL2021615A NL2021615A (en) 2019-03-26
NL2021615B1 true NL2021615B1 (en) 2019-07-18

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ID=65010843

Family Applications (1)

Application Number Title Priority Date Filing Date
NL2021615A NL2021615B1 (en) 2017-09-21 2018-09-13 Suction excavator pump transmission, suction excavator and method for operating a suction excavator

Country Status (4)

Country Link
CN (1) CN109538713A (nl)
BE (1) BE1026353B1 (nl)
DE (1) DE102017121860A1 (nl)
NL (1) NL2021615B1 (nl)

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YU47761B (sr) * 1988-03-11 1996-01-09 Zahnradfabrik Friedrichshafen Ag. Pogonski uređaj sa jednim dvostepenim prenosnikom
DE4423651A1 (de) * 1994-07-06 1996-01-11 Zahnradfabrik Friedrichshafen Antriebseinrichtung für ein Kraftfahrzeug, insbesondere eine Baumaschine
DE10034195C1 (de) 2000-07-13 2002-04-04 Luebecker Maschb Gmbh Baggerpumpe
AU7736201A (en) * 2000-10-05 2002-04-11 Komatsu Mining Germany Gmbh Drive system for a hydraulic excavator
DE102008000327A1 (de) * 2008-02-18 2009-08-20 Zf Friedrichshafen Ag Einrichtung zur Reduzierung des Zugkrafteinbruchs
CN101915288B (zh) * 2010-08-04 2013-01-02 洛阳雷斯达传动有限公司 泥浆泵用离合变速箱
CN102286991B (zh) * 2011-05-27 2014-04-30 中国船舶重工集团公司第七一一研究所 耙吸挖泥船泥泵双速传动系统
DE102013108300A1 (de) * 2013-08-01 2015-02-05 Thyssenkrupp Presta Teccenter Ag Schaltgetriebe für eine Antriebseinheit eines Elektrofahrzeugs und Verfahren zum Betrieb des Schaltgetriebes
EP3055527A4 (en) * 2013-10-11 2017-07-12 Eaton Corporation Supercharger having multiple speeds
WO2016131597A1 (de) * 2015-02-19 2016-08-25 Audi Ag Doppelkupplungsgetriebe für ein kraftfahrzeug
DE102016212867A1 (de) * 2016-07-14 2018-01-18 Volkswagen Aktiengesellschaft Getriebe für einen Elektroantrieb
CN107795643B (zh) * 2017-10-23 2020-03-31 山东迈克拉克工程机械有限公司 一种变速器

Also Published As

Publication number Publication date
NL2021615A (en) 2019-03-26
BE1026353A1 (de) 2020-01-10
CN109538713A (zh) 2019-03-29
BE1026353B1 (de) 2020-10-26
BE1026353A9 (de) 2020-01-28
DE102017121860A1 (de) 2019-03-21

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PD Change of ownership

Owner name: RENK GMBH; DE

Free format text: DETAILS ASSIGNMENT: CHANGE OF OWNER(S), CHANGE OF LEGAL ENTITY; FORMER OWNER NAME: RENK AKTIENGESELLSCHAFT

Effective date: 20210716