EP2655242A1 - Abstützeinrichtung für arbeitsfahrzeuge - Google Patents
Abstützeinrichtung für arbeitsfahrzeugeInfo
- Publication number
- EP2655242A1 EP2655242A1 EP11788140.9A EP11788140A EP2655242A1 EP 2655242 A1 EP2655242 A1 EP 2655242A1 EP 11788140 A EP11788140 A EP 11788140A EP 2655242 A1 EP2655242 A1 EP 2655242A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- support
- threaded spindle
- spindle
- spindle nut
- support device
- Prior art date
- Legal status (The legal status 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 status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S9/00—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks
- B60S9/02—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for only lifting or supporting
- B60S9/04—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for only lifting or supporting mechanically
- B60S9/06—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for only lifting or supporting mechanically of screw-and-nut type
- B60S9/08—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for only lifting or supporting mechanically of screw-and-nut type the screw axis being substantially vertical
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/72—Counterweights or supports for balancing lifting couples
- B66C23/78—Supports, e.g. outriggers, for mobile cranes
-
- 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
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
- F16H25/2247—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with rollers
- F16H25/2252—Planetary rollers between nut and screw
-
- 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
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H2025/2062—Arrangements for driving the actuator
- F16H2025/2081—Parallel arrangement of drive motor to screw axis
Definitions
- the present invention relates to a support device for a work vehicle.
- crane trucks are provided with such a support device, which significantly increases the stability of the crane truck;
- the crane boom can accommodate large operating loads that transmit a correspondingly large moment on the crane truck due to the lever arm. A tilting of the crane truck under this operating load is excluded due to the support device.
- a support device in which a support carrier is displaceable transversely to the vehicle longitudinal axis and is provided with a support punch at its end remote from the work vehicle.
- the support bracket absorbs tilting moments that act on the vehicle.
- the support punch is provided with a piston rod designed as a lifting element, which is provided with a support foot.
- the support foot can be supported on a support surface, for example on a road surface.
- the support ram has a double-acting hydraulic cylinder as an actuator for actuating the piston rod. Via hydraulic lines, the hydraulic cylinder can be hydraulically pressurized in order to actuate the lifting element.
- the work vehicle is usually equipped with hydraulic pumps that generate the required hydraulic pressure.
- the object of the invention was to provide an improved support device.
- the actuator has a Planetendoilzgewindetrieb between the spindle nut and a threaded spindle arranged planet in rolling engagement with the threaded spindle and the spindle nut, wherein a relative rotation between the threaded spindle and the spindle nut in a longitudinal displacement between the threaded spindle and the spindle nut along the Hubachse is converted for a lifting movement of the Hubelides, a powerful mechanical actuator is provided. Hydraulic elements are omitted without replacement. Such Planetenskylzgetriebe can be driven in a simple manner by means of small electric motors.
- the actuator may, in addition to the PlanetendoilzgewindeInstitut have another transmission which is connected to the Planetendoilzgewinderios.
- Inventive support devices preferably have an electric motor which drives the Planetendoilzgewinderios as a direct drive.
- a reduction gear can be arranged between the electric motor and the Planetenracelzgegewetrieb to reduce the speed of the electric motor in favor of a higher Antriebsmomnetes on the output shaft of the intermediate transmission.
- the planetary roller screw drive can be designed so that it is self-locking.
- a small pitch is selected depending on the spindle diameter the helical outer profile of the threaded spindle for self-locking. This means that under the external load no relative rotation between the spindle nut and the threaded spindle and thus no lifting movement is performed.
- the lifting element can optionally comprise the spindle nut or the threaded spindle, so that the spindle nut or the threaded spindle can perform the lifting movement.
- the support punch can be provided on the work vehicle in support devices according to the invention.
- the support punch may be attached to a conventional support support of the work vehicle.
- the support beam can be longitudinally displaced along a transverse to the vehicle longitudinal axis support axis to increase the support distance between the vehicle longitudinal axis and the support punch.
- a longitudinal displacement can also be provided that the support beam is pivotally mounted about a pivot axis. Also in this case, the support distance can be increased.
- Planetenskylzgewindetriebe are known in various configurations and described for example in DE 10 2006 060 681 B3, EP 0320621 B1 and DE 3739059 B1 and illustrated.
- planetary roller drives relative rotational movements between the threaded spindle and the spindle nut are converted into relative axial movements between the threaded spindle and the spindle nut.
- the planets engage with a first profiling in an external profiling of the threaded spindle.
- the external profiling is formed by helically wound around the spindle axis threaded grooves of the threaded spindle, wherein one thread or a plurality of axially successively arranged threads can be provided.
- the planets also engage with a second profiling in a nut-side inner profiling.
- the number of planets distributed over the circumference may vary.
- the first and second profiles of the planets can be be formed tuning, so that the planets can be provided as a cylinder with a plurality of along the planetary axis successively arranged grooves, said grooves are arranged transversely to the axis of the planet.
- the grooves may be annular.
- the nut-side inner profiling may be formed by flanks or grooves which are arranged coaxially to the spindle axis.
- the planets Under the operation of the planetary roller screw, the planets roll both on the spindle nut and on the threaded spindle.
- the planets spin both around their planetary axis and around the spindle axis.
- the rotational speed of the planets about the spindle axis is smaller than the rotational speed of the example driven threaded spindle.
- Only after a complete circulation of all planets, a feed between the threaded spindle and the spindle nut is achieved, which corresponds to the pitch of the threaded spindle.
- the slope indicates the axial progress of a complete turn of a thread of the threaded spindle.
- the overall pitch of the Planetenmaschinelzgewindetriebes and the pitch of the threaded spindle are different.
- an axial feed which is converted into a stroke of the lifting element.
- the axial feed is used directly for the stroke of the lifting element, wherein the threaded spindle can accommodate the full lifting load.
- the lifting element can have the threaded spindle or the spindle nut.
- the threaded spindle can perform the axial feed, in which case the lifting element comprises the threaded spindle.
- the spindle nut can perform the axial feed, in this case, the lifting element comprises the spindle nut.
- the planets can transfer the support load between the threaded spindle and the spindle nut.
- the support member may comprise a housing in which the threaded spindle and, alternatively, the spindle nut is rotatably mounted.
- planetary roller screw drives can be used, whose threaded spindles are provided with the smallest pitches, so that these planetary roller screw drives can be self-locking. This means that no further precautions are necessary in this case, which prevent unwanted retraction of the lifting element under the vertical load.
- the planets can transmit the support load between the threaded spindle and the spindle nut by the flanks of the profiles of the planet are supported on the one hand on the flanks of the outer profile of the threaded spindle and on the other hand, on the flanks of the nut side internal profiling.
- the low gradients also allow a hub of heavy loads.
- the gear ratio between the spindle nut and threaded spindle can be chosen so that on the one hand a stroke of large loads is made possible with comparatively low torques of the driven threaded spindle or the driven spindle nut, and on the other hand, a self-locking can be ensured.
- Inventive support devices can therefore be provided with electric motors that generate the required actuating movements of the lifting element at low power.
- the 12 V or 48 V on-board network of the work vehicle can provide sufficient electrical power.
- an electric motor is particularly suitable a multipolar DC motor.
- Direct drives can be realized, wherein a rotor of the electric motor is arranged coaxially with the threaded spindle and drives either the threaded spindle or the spindle nut.
- the electric motor can be arranged offset to the spindle axis on the stand and optionally connected via a gear to the planetary roller screw.
- a spur gear, a worm gear or a Switzerlandstoffgetriebe is conceivable, which is connected to the drive side of the threaded spindle or to the spindle nut.
- Traction mechanism have as a pulling means on a chain or a belt.
- the transmission is designed as a reduction gear, so that a high speed of the rotor of the electric motor is set in favor of an improved torque at the transmission-side output shaft.
- the lifting element has at least one lifting part, which is connected on the one hand to the threaded spindle or to the spindle nut for a common lifting movement.
- This lifting part can be tubular and thus be light in weight.
- this lifting member may be provided with a support leg for support on the support surface.
- the lifting part can be formed by the threaded spindle in the simplest case.
- the support stamp on a receptacle for the lifting element, in which the lifting element can be inserted.
- the height of the support temple according to the invention can then correspond approximately to the height of the recording. But it is also possible to provide the receptacle along the lifting axis with a passage for the lifting element; the recording can then be carried out short construction along the stroke axis.
- the threaded spindle If the threaded spindle is driven, that is to be rotated, it can be mounted radially and axially in the receptacle of the support punch, for example via one or more roller bearings, which can be designed as a deep groove ball bearing or as a needle bearing or roller bearings.
- Planetenskyen in a support device according to the invention, other forms of Planetenskyen can be used.
- planets may be used which merely have a uniform groove profile that meshes with both the spindle nut and the threaded spindle.
- the planets are both in rolling engagement with the threaded spindle and in rolling engagement with the spindle nut, wherein actuated by the Planetenskylzgewindetriebes the planets rotate about their planetary axis and roll both on the inner circumference of the spindle nut and on the outer circumference of the threaded spindle.
- the threaded spindle can be arranged coaxially to the lifting axis of the lifting element.
- FIGs 1 and 2 a support device according to the invention in longitudinal section, with retracted and extended support punch Figures 3 and 4, a further inventive support means in
- FIG. 11 shows in a longitudinal section a known planetary roller screw drive 1 according to DE 10 2006 060 681 B3 for converting a rotary movement into an axial movement or vice versa.
- the planetary roller screw drive 1 comprises a threaded spindle 2, which has an external filing 3 in the form of grooves on its lateral surface.
- the threaded spindle 2 thus forms a threaded spindle and can form the shaft of an electric motor.
- the threaded spindle 2 is surrounded by a spindle nut 4, wherein the spindle nut 4 is rotatable relative to the threaded spindle 2.
- an inner profiling 5 is provided in the form of grooves.
- a predetermined number of planets 6 is provided between the hollow cylindrical spindle nut 4 and the threaded spindle 2, a predetermined number of planets 6 is provided.
- the planets 6 are arranged offset in equidistant angular distances in the circumferential direction of the threaded spindle 2, wherein the longitudinal axes of the planet 6 parallel to the longitudinal axis L of the threaded spindle 2 extend.
- the longitudinal ends of the planets 6 are in each case rotatably mounted in a spacer disk 7.
- the planets 6 each have a first profiling 6a and a second profiling 6b.
- first profiling 6a an axial frictional connection of the planet 6 with the threaded spindle 2 is produced by this profiling 6a being guided in the external profiling 3 of the threaded spindle 2.
- These first profiles 6a form feed grooves.
- second profiling 6b an axial frictional connection of the planet 6 with the spindle nut 4 is produced by this profiling 6b being guided in the inner profiling 5 of the spindle nut 4.
- These second profiles 6b form guide grooves.
- the longitudinal ends receiving spacers 7 serve as spacers for the planet. 6
- the identically formed spacers 7 have a circular disk-shaped form. In the middle of everyone Spacer plate 7 is provided a bore through which the threaded spindle 2 is guided.
- each spacer disc 7 receptacles 7a are provided for the ends of the rolling elements 6.
- the planet 6 are rotatably mounted.
- the spacers 7 are each spaced from the spindle nut 4 and the threaded spindle. 2
- the profiles 6a of the individual planets 6 are offset from one another.
- the profiling 6a of each planet 6 to the previous planet 6 has a defined axial offset.
- the planet 6 roll with the profilings 6a on the outer profile 3, wherein at the same time the second profilings 6b in the inside - Profiling 5 of the spindle nut 4 are guided.
- the planet 6 mounted in the spacer disks 7 revolves on the lateral surface of the threaded spindle 2, this movement being slower than the rotational movement of the threaded spindle 2.
- the rotational movements take place in such a way that only after one complete revolution the planet 6 has the spindle nut 4, the threaded spindle 2 by the amount of the slope of the outer profiling 3 axially displaced with respect to the spindle nut 4.
- FIG. 1 shows a longitudinal section of a supporting device according to the invention.
- a support ram 8 is held on a supporting support 8a which is merely indicated here.
- the support bracket 8a is attached to a working piece not shown here. vehicle stored.
- the support punch 8 is provided with a hollow receptacle 9, which is formed from a tube 10. In the receptacle 9, a lifting element 1 1 is arranged.
- the support ram 8 On the support ram 8 a further designed as a multipolar DC motor electric motor 12 is arranged, which is connected via a spur gear 13 to a Planetenracelzgewindetrieb 14.
- the spur gear 13 is designed as a reduction gear, with the high rotational speeds of the electric motor 12 in a relatively low speed of a threaded spindle 15 of the Planetenracelzgewindetrie- bes 14 is reduced.
- the support punch 8 has a housing 8b, in which the spur gear 13 is housed.
- This planetary roller screw drive 14 corresponds in its structural design to the planetary roller screw drive 1 described above with reference to FIG. Between the threaded spindle 15 and a spindle nut 16 distributed over the circumference arranged planets 17 are provided, which are in rolling contact with both the threaded spindle 15 and the spindle nut 16 in the manner described. While the planets 6 of the Planetenracelzgewindetriebes 1 each have two sections with a profiling 6 a, the planets 17 of the Planetenracelzgewindetriebes 14 have only a portion with such a profiling 17 a for engaging with an nchprofiltechnik 15 a of the threaded spindle 15, said outer profiling 15 a is designed as a helical thread groove.
- the threaded spindle 15 is provided at its end facing the spur gear 13 in axial extension with a drive shaft 18 on which a spur gear 19 of the spur gear 13 is arranged rotationally fixed.
- a spur gear 20 is arranged rotationally fixed, which meshes with the spur gear 19.
- the drive shaft 18 may be provided with a spline and the spur gear 19 may be provided with an adapted to the Keil- toothing inner contour, so that a preassembled unit - consisting of lifting element 1 1, Planetenannalzgewindetrieb 15, and tube 10 - in the already pre-mounted on the stator side Spur gear 19 inserted can be infected.
- the threaded spindle 15 is mounted radially and axially relative to the housing 8b by means of an upper support bearing 21 constructed as a ball bearing.
- the threaded spindle 15 is mounted on a further, not shown here thrust bearing relative to the housing 8b. From the lifting element 1 1 transmitted forces are passed through the upper support bearing 21 and the thrust bearing not shown in the housing 8b.
- the lifting element 1 1 has a tubular lifting part 27 which receives the spindle nut 16 of the Planetenxxlzgewindetriebes 14 which is held by means of retaining rings 29 axially on the lifting part 27.
- the lifting part 27 is provided at its end remote from the spur gear 13 end with a support leg 30 which is provided for engagement with a support surface.
- the lifting part 27 is mounted radially on the tube 10 by means of a sliding bearing 33.
- the threaded spindle 15 and the lifting part 27 are arranged coaxially with each other, wherein the threaded spindle 15 is immersed in the retracted state of the Hubel- element 1 1 in the inner lifting part 27.
- Figure 2 shows the support ram 8 in the extended state, wherein the lifting part 27 is extended from the receptacle 9 of the housing 8b.
- FIGS. 3 and 4 show an alternative support device according to the invention which differs from the support device illustrated in FIG. 1 essentially in that a direct drive is provided in order to drive the drive shaft 18.
- FIG. 3 shows the supporting device with retracted lifting element 11
- FIG. 4 shows the supporting device with extended lifting element 11.
- An electric motor 34 is arranged coaxially with the threaded spindle 15.
- a rotor 35 of the electric motor 34 is provided with coils.
- a in the housing 8b The support shaft 18 is connected to the rotor 35 for transmitting rotational movements. This variant allows the elimination of a transmission between the drive shaft 18 and the electric motor 34 and is therefore extremely space-saving.
- the drive shaft 18 is mounted via an upper support bearing 38 and a lower support bearing 39 relative to the housing 8b.
- the upper support bearing 38 is designed as an axial roller bearing
- the lower support bearing 39 is designed as a Radallicalzlager.
- FIGS. 5 and 6 show a working vehicle with the support device according to the invention from FIGS. 3 and 4.
- a total of four support punches 8 are held on four support beams 8a, two support punches 8 and two support beams 8a are provided on both longitudinal sides.
- the mode of operation of the above-described supporting devices according to the invention will be explained in more detail below with reference to FIGS. 3, 4, 5 and 6.
- the mode of operation of the support device according to the invention according to FIGS. 1 and 2 does not differ from that of FIGS. 1 and 2 merely by the spur gear mechanism connected between the electric motor and the planetary roller bearing.
- the threaded spindle 15 of the planetary roller screw drive 14 is set in rotation.
- the planets 17 roll on the outer profiling 15a of the threaded spindle 15, which is helically wound around the spindle axis.
- the planets 17 further roll with their second profiling 17b on the formed on the inner circumference of the spindle nut 16 inner profiling 16a.
- Due to the described screwing the lifting element 1 1 is moved with the spindle nut 16 along the lifting axis of the receptacle 9 of the tube 10, wherein the tubular lifting member 27 does not rotate.
- the lifting element 1 1 is extended until the support leg 30 on the support surface - eg. Road - is applied.
- the four support rams 8 allow safe support of the work vehicle.
- the lifting elements 11 can be extended until the wheels of the working vehicle lift off the road.
- the pitch of the helical outer profiling of the threaded spindle is chosen as a function of the spindle diameter so that the support punch 8 is self-locking.
- FIGS. 7 and 8 show a further supporting device according to the invention which, like the supporting device from FIGS. 3 and 4, is provided with a direct drive.
- a support punch 46 provided in this embodiment has an electric motor 40 accommodated in the housing 8b, which drives the spindle nut 16 of the planetary roller screw drive 14 while the threaded spindle 15 is rotationally fixed.
- the threaded spindle 15 with the connected support foot 43 forms at the same time a lifting element 15b, which in the present case can also be referred to as a lifting part.
- the threaded spindle 15 can be radially mounted on the housing 8b via radial bearings not shown here.
- the spindle nut 16 is rotatably connected to a rotor 40a, while a stator 41 is rotatably housed in the housing 8b.
- the spindle nut 16 is rotatably mounted in the housing 8b via two inclined ball bearings 44, 45 arranged in an X arrangement.
- the housing 8b is provided with a passage 42 for the threaded spindle 15. At its lower end shown in Figures 7 and 8 is the threaded spindle 15 is provided with a support foot 43.
- the support beam 8a is merely indicated.
- the spindle nut 16 of the planetary roller screw drive 14 rotates.
- the planets 17 roll on the one hand on the spindle nut 16 and on the other hand on the threaded spindle 15, wherein the threaded spindle 15 undergoes an axial feed.
- FIG. 8 shows the extended position of the self-locking support punch 46.
- the support device according to the invention shown in FIGS. 9 and 10 differs from the support device shown in FIGS. 7 and 8 essentially in that an electric motor 47 is provided which drives the spindle nut 16 of the planetary roller screw drive 14 via a worm gear 48.
- a worm 49 rotatably connected to the motor shaft of the electric motor 47 meshes with a worm wheel 50 rotatably connected to the spindle nut 16.
- the structure and mode of operation of this support device according to the invention coincide with that of FIGS. 7 and 8.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Transmission Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010055416A DE102010055416A1 (de) | 2010-12-21 | 2010-12-21 | Abstützeinrichtung für Arbeitsfahrzeuge |
PCT/EP2011/070901 WO2012084402A1 (de) | 2010-12-21 | 2011-11-24 | Abstützeinrichtung für arbeitsfahrzeuge |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2655242A1 true EP2655242A1 (de) | 2013-10-30 |
Family
ID=45044589
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11788140.9A Withdrawn EP2655242A1 (de) | 2010-12-21 | 2011-11-24 | Abstützeinrichtung für arbeitsfahrzeuge |
Country Status (5)
Country | Link |
---|---|
US (1) | US20140008905A1 (de) |
EP (1) | EP2655242A1 (de) |
CN (1) | CN103402906A (de) |
DE (1) | DE102010055416A1 (de) |
WO (1) | WO2012084402A1 (de) |
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US8678471B2 (en) | 2007-01-19 | 2014-03-25 | Rieco-Titan Products, Inc. | In-line jack |
EP2684750A1 (de) * | 2012-07-12 | 2014-01-15 | Servomech S.p.A. Con Socio Unico | Mechanische Hubvorrichtung |
DE102013022132A1 (de) * | 2013-12-24 | 2015-06-25 | Hubert Koschinat | Teleskopstütze mit Spindel und deren Antrieb über Tellerrad mit integriertem Axiallager zur Lastabstützung |
DE102014200480B3 (de) * | 2014-01-14 | 2015-05-21 | Saf-Holland Gmbh | Höhenverstellbare Stütze und Stützvorrichtung für ein Fahrzeug |
JP6779645B2 (ja) * | 2016-03-30 | 2020-11-04 | Ntn株式会社 | 電動アクチュエータ |
CN108116824A (zh) * | 2016-11-29 | 2018-06-05 | 科思通自动化设备(苏州)有限公司 | 仓储机器人 |
DE102016123356B4 (de) * | 2016-12-02 | 2019-05-02 | Saf-Holland Gmbh | An einem Fahrzeug anzubringende Stützvorrichtung und Regelvorrichtung für mindestens eine Stützvorrichtung |
CN106994605B (zh) * | 2016-12-15 | 2018-12-04 | 泰兴市智谷科技孵化器中心 | 一种机床基座 |
CN106826255A (zh) * | 2016-12-15 | 2017-06-13 | 广州峥航机械设备有限公司 | 一种节约空间的机床基座 |
CN107030487B (zh) * | 2016-12-15 | 2018-11-06 | 杭州友佳精密机械有限公司 | 一种机床基座 |
DE102017114198A1 (de) * | 2017-06-27 | 2018-12-27 | Schaeffler Technologies AG & Co. KG | Planetenwälzgewindetrieb, Aktuator und Ausrücksystem |
CN107314091A (zh) * | 2017-07-26 | 2017-11-03 | 哈尔滨工业大学 | 一种基于行星滚柱丝杠的电动六自由度运动平台 |
KR101925109B1 (ko) * | 2018-05-31 | 2018-12-04 | 한화시스템 주식회사 | 직선 구동장치 |
CN108773775A (zh) * | 2018-06-24 | 2018-11-09 | 郭文英 | 一种机械设备起吊架 |
CN108900143A (zh) * | 2018-07-08 | 2018-11-27 | 王利利 | 一种太阳能发电抗灾救援装置 |
CN108892054A (zh) * | 2018-09-20 | 2018-11-27 | 安徽工程大学 | 助力手动吊车 |
CN110980552B (zh) * | 2019-11-14 | 2021-01-12 | 安徽省华腾农业科技有限公司经开区分公司 | 一种具有安全稳定辅助支撑装置的随吊车 |
CN110884470A (zh) * | 2019-11-20 | 2020-03-17 | 利辛县凯盛汽车有限公司 | 一种半挂车用支撑装置 |
CN111320098A (zh) * | 2020-03-18 | 2020-06-23 | 江苏徐工工程机械研究院有限公司 | 一种升降机构及带有该升降机构的工程机械 |
DE102021002958B4 (de) | 2021-06-09 | 2023-03-30 | Christian Niestolik | Wagenheber mit einer Absenksicherung |
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GB9522631D0 (en) * | 1995-11-04 | 1996-01-03 | Lucas Ind Plc | Improvements in electrically-operated disc brake assemblies for vehicles |
GB2324843B (en) * | 1996-02-15 | 2000-05-17 | Kelsy Hayes Company | Brake actuation mechanism |
JP2001524647A (ja) * | 1997-11-21 | 2001-12-04 | コンティネンタル・テーベス・アクチエンゲゼルシヤフト・ウント・コンパニー・オッフェネ・ハンデルスゲゼルシヤフト | 電気機械的に操作可能なディスクブレーキ |
KR100401418B1 (ko) * | 2001-05-18 | 2003-10-22 | 제갈희 | 자동차 승강용 전동잭 |
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FR2839127B1 (fr) * | 2002-04-24 | 2004-06-25 | Transrol | Dispositif d'actionnement a elements roulants intermediaires |
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CN200967717Y (zh) * | 2006-11-03 | 2007-10-31 | 上海三一科技有限公司 | 一种起重机底座固定支腿结构 |
DE102006060681B3 (de) | 2006-12-21 | 2007-12-13 | Wilhelm Narr Gmbh & Co. Kg | Dichtung für Gewindetrieb |
US8678471B2 (en) * | 2007-01-19 | 2014-03-25 | Rieco-Titan Products, Inc. | In-line jack |
WO2009086832A1 (en) * | 2008-01-12 | 2009-07-16 | Linak A/S | Actuator |
DE102008008013B3 (de) * | 2008-02-07 | 2009-10-01 | Wilhelm Narr Gmbh & Co. Kg | Vorrichtung zur Umwandlung einer Drehbewegung in eine Axialbewegung |
AU2009260178B2 (en) * | 2008-06-16 | 2012-07-26 | Warren Phillip Drew | Linearly adjustable device |
ZA200907443B (en) * | 2008-07-08 | 2010-07-28 | Quaddro Technologies Pty Ltd | A scissor jack |
US8225699B2 (en) * | 2009-08-14 | 2012-07-24 | Tai-Her Yang | Sun gear coaxially driven screw and nut structure |
-
2010
- 2010-12-21 DE DE102010055416A patent/DE102010055416A1/de not_active Withdrawn
-
2011
- 2011-11-24 EP EP11788140.9A patent/EP2655242A1/de not_active Withdrawn
- 2011-11-24 US US13/996,687 patent/US20140008905A1/en not_active Abandoned
- 2011-11-24 WO PCT/EP2011/070901 patent/WO2012084402A1/de active Application Filing
- 2011-11-24 CN CN201180062288XA patent/CN103402906A/zh active Pending
Non-Patent Citations (1)
Title |
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See references of WO2012084402A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20140008905A1 (en) | 2014-01-09 |
DE102010055416A1 (de) | 2012-06-21 |
WO2012084402A1 (de) | 2012-06-28 |
CN103402906A (zh) | 2013-11-20 |
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