EP2625131A1 - Engin de levage pourvu d'une courroie dentée comme moyen porteur - Google Patents

Engin de levage pourvu d'une courroie dentée comme moyen porteur

Info

Publication number
EP2625131A1
EP2625131A1 EP11764741.2A EP11764741A EP2625131A1 EP 2625131 A1 EP2625131 A1 EP 2625131A1 EP 11764741 A EP11764741 A EP 11764741A EP 2625131 A1 EP2625131 A1 EP 2625131A1
Authority
EP
European Patent Office
Prior art keywords
toothed belt
hoist
belt
output gear
guide rollers
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.)
Granted
Application number
EP11764741.2A
Other languages
German (de)
English (en)
Other versions
EP2625131B1 (fr
Inventor
Oliver Moll
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Demag Cranes and Components GmbH
Original Assignee
Demag Cranes and Components GmbH
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 Demag Cranes and Components GmbH filed Critical Demag Cranes and Components GmbH
Publication of EP2625131A1 publication Critical patent/EP2625131A1/fr
Application granted granted Critical
Publication of EP2625131B1 publication Critical patent/EP2625131B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/28—Other constructional details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/28—Other constructional details
    • B66D1/36—Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/28—Other constructional details
    • B66D1/30—Rope, cable, or chain drums or barrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D3/00—Portable or mobile lifting or hauling appliances
    • B66D3/18—Power-operated hoists
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D3/00—Portable or mobile lifting or hauling appliances
    • B66D3/18—Power-operated hoists
    • B66D3/26—Other details, e.g. housings

Definitions

  • the invention relates to a hoist, in particular a toothed belt train, for lifting and lowering loads with a toothed belt driven by a driven wheel and with a form-fitting engagement with the driven wheel in a looping area.
  • corresponding chain hoists comprise a motorized drive unit, a transmission, an output shaft on which a sprocket is rotatably mounted, and a suspension means in the form of a chain for indirectly receiving the load to be moved.
  • the sprocket and the chain are positively engaged with each other. Due to the positive connection, a lifting force, which results from the drive-side and transmitted by the transmission torque, introduced into the chain.
  • the chain is connected at its one, seen from the sprocket from the load-side end with a freely suspended load-receiving means such as a load hook.
  • the other, unloaded chain end is located in a container-shaped chain memory, which receives the chain depending on the direction of rotation of the sprocket via an opening
  • a guide can be provided in the region of the sprocket to prevent snagging or jamming of the chain or individual chain links between sprocket and chain storage. For a reduction in wear, it is also common to lubricate the chain over its entire length.
  • Elevator systems include an elevator car that is guided and moved substantially straight in the vertical direction in an elevator shaft.
  • the support and propellant used for this purpose is fixedly secured at one end to the bottom of the elevator shaft and at another end to a ceiling of the elevator shaft and is guided between the two ends via rotatably mounted deflection pulleys and a drive pulley.
  • some or all of the panes may be attached to the elevator car so as to be moved in a straight line in the vertical direction, whereas the remaining panes are fixed in place in the elevator shaft.
  • the carrying and blowing agent is like a toothed belt or
  • V-ribbed belt formed, the teeth or V-ribs in contact with the peripheral surfaces of the discs stand.
  • Japanese Patent Laid-Open Publication JP 2005 022 791 A discloses a four-strand hoist, the four suspension elements of which are provided for lifting and lowering loads, in the form of a toothed belt.
  • the toothed belts are each fastened with a first end to a drum winch and are wound up or unwound therefrom.
  • This drum winch with its own drive has only the task of storing the timing belt.
  • the toothed belt is guided vertically downwards in the direction of the load to be lifted via a toothed belt pulley.
  • the four pulleys are synchronously driven by a common drive and initiate the lifting and cable forces in the timing belt.
  • the German patent application DE 39 11 292 A1 relates to a hoist for lifting and lowering of loads whose suspension means and the support means driving output gear are interchangeable.
  • the support means may be formed as a chain, flat rope, round rope or toothed belt and corresponding manner the output gear as a sprocket, pulley or timing belt pulley, so that optionally results in a chain hoist, cable or a toothed belt train.
  • a chain hoist serving as a support means guide is also provided.
  • the insert is above the
  • Sprocket arranged such that a pushing out of the chain from the sprocket is prevented by the use.
  • German patent application DE 196 13 037 A1 is a two-stranded
  • each toothed belt is positively and synchronously driven by a separate but drivingly connected output gear and in each case from a take-off or wound up.
  • each toothed belt is deflected via a first deflecting roller designated as a pressure roller and fed to the corresponding driven gear in its upper region.
  • a first deflecting roller designated as a pressure roller
  • the timing belt from the upper feed point of the driven wheels wrap around in a form-fitting manner about half of its circumference
  • a lower second guide pulley is arranged opposite each output gear of the upper first deflection roller opposite.
  • the lower second pressure rollers also ensure that the toothed belts in the vertical direction of the Disconnecting wheels or run on this.
  • the invention has for its object to provide an improved hoist, especially Zahnriemenzug ready to provide.
  • an improved hoisting gear in particular a toothed belt train, for lifting and lowering loads with a toothed belt driven by a driven gear and positively engaging with the driven wheel in a looping area, is achieved by several in the looping area
  • Guide rollers are attached to the hoist so that they maintain the positive connection between the timing belt and the driven wheel. A possibly unintentionally lifted positive connection between the toothed belt and the
  • Output gear carries the risk of a load crash.
  • a uniform form fit over the entire wrap is achieved in that in the wrap around in the circumferential direction of the driven gear seen in succession at least three, preferably five to seven, guide rollers are arranged.
  • Output gear seen two adjacent guide rollers spaced apart from each other at most over 30 ° of the belt.
  • the safety of the hoist is advantageously increased by the fact that the wrap area is at least 90 °, preferably 120 ° to 180 ° and particularly preferably 120 ° to 150 °.
  • a secure timing belt guide via the output gear is further improved by that the toothed belt in addition to guide rollers on additional deflection or guide rollers the output gear to or can be discharged from this.
  • an advantageous embodiment is carried out such that the load-receiving means is freely suspended.
  • the load-carrying means is suspended at a first end of the toothed belt.
  • An alternative embodiment provides that the load-receiving means is formed in a single sheared embodiment as a bottom block.
  • the output gear rotatably seated on an output shaft and the output shaft is drivingly connected via a gear with a motor, in particular an electric motor connected.
  • Belt store which stores the timing belt and is attached to the hoist, the risk of jamming or jamming.
  • An improved embodiment in the way that in the belt store a rotatably mounted on a shaft storage roller is arranged, with which the toothed belt is connected at its second end and on which the toothed belt is wound, effected by an ordered storage of the toothed belt on the storage roll one particularly reliable operation of the hoist.
  • the winding process of the toothed belt can thereby advantageously improve that the storage roller is connected via a torsion spring with the shaft in such a way that unwinding of the toothed belt spans the torsion spring starting from a wound toothed belt and the toothed belt on the
  • the winding process of the toothed belt is alternatively improved in that the storage roller is drivingly connected to a winding motor, in particular an electric motor.
  • At least one guide roller leads the timing belt from the belt storage to Abretesrad and at least two guide rollers lead the timing belt away from the output gear, the guide roller and the guide rollers on a housing of the hoist are attached.
  • Figure 2 is a partially sectioned view of Figure 1 and
  • Figure 3 is a front view of Figure 2 in partial section A-B.
  • Figure 1 is a hoist 1 with a train or suspension
  • the hoist 1 is driven by a motor 3, preferably an electric motor.
  • the drive power applied by the motor 3 is transmitted to the toothed belt 2 in a form-fitting manner via a gear 4, not shown, (see FIG. 3) as well as an output gear 4a, not shown (see FIG. 2).
  • the motor 3 is flanged to a housing 5, the installation space in the longitudinal section, not shown, is H-shaped, so that the installation space is separated by a load-bearing wall in two mounting space halves.
  • the installation space halves are each open at the side facing away from the wall. In the one half of the installation space, the gear 4 and in the other half of the installation space the driven gear 4a is added.
  • the installation space halves can be closed by appropriate cover.
  • the timing belt 2 is of a not shown in detail
  • Belt store 6 (see Figure 2) stored, which is laterally attached to the housing 5, and released or received depending on the direction of rotation of the motor 3 and the driven gear 4a.
  • the hoist 1 is single-stranded, so that the toothed belt 2 has a first free-hanging end 2a, to which a load-receiving means 7 is attached.
  • a at the top of the hoist 1, in particular its housing 5, fastened suspension element 8, the hoist 1 can be hung on a supporting element, not shown.
  • FIG. 2 shows a partially cutaway view of the hoist 1 of FIG. 1, in particular a detailed illustration of the guidance of the toothed belt 2 in FIG
  • the toothed belt 2 is fastened with its second end 2b to a storage roller 6a, which is rotatably mounted within the belt store 6 on a shaft 6b.
  • the shaft 6b is mounted in a container-like storage housing 6d.
  • the storage roller 6a is connected via a torsion spring 6c to the shaft 6b in such a way that, starting from the toothed belt 2, which is wound on the storage roller 6a, unwinding of the toothed belt 2 biases the torsion spring 6c and thus after that of a
  • Roller shutter belt winder known principle of the toothed belt 2 can be rolled over on the storage roller 6a on the force resulting from the stored energy in the tensioned torsion spring 6c again.
  • the toothed belt 2 leaves the belt store 6 or its storage housing 6d in the direction of the housing 5 and is moved by means of a deflection roller 9, which is rotatably mounted on the housing 5, from the
  • Belt store 6 is directed into the housing 5 and the driven wheel 4a arranged therein is supplied laterally.
  • the driven gear 4a is rotatably connected to the output shaft 4b, which cooperates with the gear 4, not shown, (see Figure 3), connected and rotatably mounted on the housing 5.
  • the radially encircling surface of the output gear 4a has a profiling, which is complementary to the surface contour of the toothed belt 2, preferably in the form of wheel teeth 4c. Furthermore, the leadership of the
  • the guide rollers 10 are positioned in the region of the driven gear 4a and distributed approximately over the upper half of the wheel circumference spaced from each other so that in this area between the guide rollers 10 and the driven gear 4a supplied timing belt 2 with its profiled side with the Radzähnen 4c of
  • Output gear 4a is positively engaged.
  • the wrap-around region, in which the positive-engagement engagement is made extends over at least 90 °, but preferably 120 ° to 180 ° and particularly preferably 120 ° to 150 °, with respect to an imaginary rotation about the axis of rotation of the driven wheel 4a. So that a uniform guidance or a uniform pressing of the toothed belt 2 to the output gear 4a is ensured over the entire belt, At least two guide rollers 10 are provided over each 30 ° comprehensive portion of the belt. The toothed belt 2 is guided by the guide rollers 10 so over the rotating output gear 4a, that the free first end 2a of the
  • the output gear 4a is preferably designed as a toothed belt pulley.
  • the release of the toothed belt 2 is assisted by a stripping element 12b, which is fastened in the housing 5 in the region of the lower half driven gear 4a such that the positive connection is formed by a splitting wedge effect of the correspondingly formed
  • Geometry of the stripping element 12b is interrupted. Usually, the load suspended on the load-receiving means 7 is sufficient to secure the toothed belt 2 from the
  • Load-receiving means 7 attached.
  • the axes of rotation of the output shaft 4b, the shaft 6b, the guide roller 9, the guide rollers 10 and the guide rollers 11 are preferably aligned parallel to each other.
  • FIG 3 shows a front view of Figure 2 in partial section A-B, in which a cassette 12 with cassette walls 12a as an advantageous embodiment for rotatably supporting the rollers 9 (see Figure 2), 10 and 1 1 is shown.
  • the cassette 12 is designed as a detachably mounted on the output shaft 4b and the output gear 4a (see Figure 2) floating unit and includes in addition to the rollers 9, 10 and 1 1, the output gear 4a and the stripping element 12b (see Figure 2).
  • the cassette walls 12a have bearing openings by means of which the rollers 9, 10 and 11 are positioned and rotatably supported between two cassette walls 12a.
  • the output gear 4a is approximately concentric with respect to receiving openings for carrying out the output shaft 4b between the cassette walls 12a
  • the cassette 12 is seated within the housing 5 on the cooperating with the gear 4 output shaft 4b, which is guided through the receiving opening at least the gear 4 facing cassette wall 12a, wherein the connection between the output shaft 4b and the output gear 4a is preferably realized by positive engagement.
  • the cassette 12 is axially secured via the output gear 4a on the output shaft 4b, for example, by a 4d sitting on the free, ie the end of the output shaft 4b facing away from the transmission 4b.
  • the cassette 12 is outstanding over at least one side of the cassette 12
  • the toothed belt 2 is guided in the manner described in Figure 2 by the rollers 9, 10 and 1 1 through the cassette 12, wherein the toothed belt 2 is inserted either already in the context of assembly form-fitting with the output gear 4a in the cassette 12 and then the second End 2b is fixed to the storage roller 6a, or the toothed belt 2 is first attached to the second end 2b on the storage roll 6a and then the free-swinging first end 2a is threaded into the mounted cassette 12 and then passed through the cassette 12 accordingly.
  • the invention also relates to a multi-stranded embodiment, in particular with a trained as a bottom load-carrying means 7 in single sworded embodiment, wherein the first end 2a of the toothed belt 2 not hanging freely, but firmly the housing 5 is connected. Furthermore, for the
  • Belt store 6 with respect to the illustrated embodiment also conceivable alternative mounting positions, in particular below the housing 5, comparable to the chain memory conventional chain hoists. It is also possible that the winding of the toothed belt 2 via a winding motor, preferably by means of a standstill motor or a slip clutch, instead of via a torsion spring 6c. Likewise, it is possible to use the belt store 6 as a conventional chain store for chaotic recording of the toothed belt 2, so that the toothed belt 2 is not wound, but only from the output gear 4a disorderly in the

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Transmission Devices (AREA)

Abstract

L'invention concerne un engin de levage (1), en particulier un palan à courroie dentée, pour lever et abaisser des charges, comprenant une courroie dentée (2) entraînée par une roue de sortie (4a) et en prise par complémentarité de forme avec la roue de sortie (4a) dans une zone d'enroulement. L'invention vise à fournir un engin de levage (1) amélioré, en particulier une traction à courroie dentée. A cet effet, plusieurs rouleaux de guidage (10) sont fixés sur l'engin de levage (1) dans la zone d'enroulement de manière que ceux-ci maintiennent la coopération de formes entre la courroie dentée (2) et la roue de sortie (4a).
EP11764741.2A 2010-10-06 2011-10-04 Engin de levage à courroie dentée Active EP2625131B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010047704A DE102010047704A1 (de) 2010-10-06 2010-10-06 Hebezeug mit einem Zahnriemen als Tragmittel
PCT/EP2011/067335 WO2012045749A1 (fr) 2010-10-06 2011-10-04 Engin de levage pourvu d'une courroie dentée comme moyen porteur

Publications (2)

Publication Number Publication Date
EP2625131A1 true EP2625131A1 (fr) 2013-08-14
EP2625131B1 EP2625131B1 (fr) 2014-07-02

Family

ID=44759691

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11764741.2A Active EP2625131B1 (fr) 2010-10-06 2011-10-04 Engin de levage à courroie dentée

Country Status (6)

Country Link
US (1) US20130181177A1 (fr)
EP (1) EP2625131B1 (fr)
CN (1) CN103140431B (fr)
DE (1) DE102010047704A1 (fr)
ES (1) ES2498292T3 (fr)
WO (1) WO2012045749A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3693324A1 (fr) 2019-02-06 2020-08-12 CEP Technique SA Palan électrique à courroies synchrones

Families Citing this family (14)

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US9964132B2 (en) 2016-03-22 2018-05-08 Bernard Cole Realty Corporation Quick hook
JP6883541B2 (ja) * 2017-05-30 2021-06-09 三ツ星ベルト株式会社 歯付ベルト伝動装置
US10815102B2 (en) * 2017-10-05 2020-10-27 Mark C. Dodd Moisture proof sleeve block
CL2018001756S1 (es) * 2017-12-29 2018-10-19 J D Neuhaus Holding Gmbh & Co Kg Izador para carga
CN109132878B (zh) * 2018-10-24 2020-07-14 嘉兴市禾兴自润轴承开发有限公司 一种桥梁施工机械快速提升装置
CN109244949B (zh) * 2018-10-29 2024-04-09 国网新疆电力有限公司昌吉供电公司 配电带电作业用导线提升工具
US11312598B2 (en) 2019-03-18 2022-04-26 Wenger Corporation Hoist fleet assembly
WO2021067643A1 (fr) * 2019-10-01 2021-04-08 Allied Motion Technologies Inc. Actionneur rotatif à ressort
US11987480B2 (en) * 2019-10-23 2024-05-21 Kanister Industries Llc Cable guide device
USD982871S1 (en) * 2020-03-20 2023-04-04 Konecranes Global Corporation Hoist
US11702326B2 (en) * 2021-02-03 2023-07-18 Eduardo Nunez Duran Hoisting assembly
KR102538478B1 (ko) * 2021-06-07 2023-05-31 한국항공우주연구원 드론 및 드론 반토크 보상 방법
KR102490638B1 (ko) * 2021-10-21 2023-01-19 맹수영 무선전동식 안전체인블럭
KR102490637B1 (ko) * 2021-11-04 2023-01-19 맹수영 무선전동식 스마트 안전체인블럭

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See references of WO2012045749A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3693324A1 (fr) 2019-02-06 2020-08-12 CEP Technique SA Palan électrique à courroies synchrones

Also Published As

Publication number Publication date
DE102010047704A1 (de) 2012-04-12
US20130181177A1 (en) 2013-07-18
ES2498292T3 (es) 2014-09-24
EP2625131B1 (fr) 2014-07-02
CN103140431A (zh) 2013-06-05
CN103140431B (zh) 2015-12-16
WO2012045749A1 (fr) 2012-04-12

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