JP2008030950A - Lift device - Google Patents

Lift device Download PDF

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Publication number
JP2008030950A
JP2008030950A JP2007158619A JP2007158619A JP2008030950A JP 2008030950 A JP2008030950 A JP 2008030950A JP 2007158619 A JP2007158619 A JP 2007158619A JP 2007158619 A JP2007158619 A JP 2007158619A JP 2008030950 A JP2008030950 A JP 2008030950A
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Japan
Prior art keywords
pedestal
tubular
lift device
protrusion
intermediate body
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JP2007158619A
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Japanese (ja)
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JP2008030950A5 (en
Inventor
Peter Druckmiller
ドゥルックミラー ペーター
Werner Micheler
ミヒェラー ヴェルナー
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MAN Energy Solutions France SAS
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MAN Diesel SA
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Publication of JP2008030950A publication Critical patent/JP2008030950A/en
Publication of JP2008030950A5 publication Critical patent/JP2008030950A5/ja
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
    • B66F3/10—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated with telescopic sleeves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Transmission Devices (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To realize a large work process by forming a lift device in a low structural height, in the lift device, particularly, a crankshaft bearing lift device used for incorporating a crankshaft bearing into an engine or removing the crankshaft bearing from the engine. <P>SOLUTION: This lift device has a first body 11 having a first pedestal 12, a second body 14 having a second pedestal 15, and a tubular intermediate body 17 connecting the first body to the second body. A projection part 13 of the first body projecting from the first pedestal is guided in a first end part 18 of the tubular intermediate body, and a projection part 16 of the second body projecting from the second pedestal is guided in a second end part 19 of the tubular intermediate body, respectively rotatably via a screw. The intermediate body is displaced in a nesting system to the first body on the one hand, and the second body is simultaneously displaced in the nesting system to the intermediate body on the other hand, by rotation of the tubular intermediate body. The first body and the second body are displaced so as to mutually approach or separate in response to the rotational direction of the intermediate body. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明はリフト装置、特にクランクシャフト軸受をエンジンに組込みないしエンジンから取り外すために使われるクランクシャフト軸受リフト装置に関する。   The present invention relates to a lift device, and more particularly to a crankshaft bearing lift device used for incorporating or removing a crankshaft bearing from an engine.

エンジンを点検すべく、所定の状況下において、エンジンのクランクシャフト軸受を取り外し、続いて再び組込む必要がある。これは、クランクシャフト軸受をその組込みないし分解の際に移動させるためにリフト装置により行われる。実際には、シザースジャッキが利用されている。かかるシザースジャッキは非線形昇降行程を持つ。かかるシザースジャッキの場合、該ジャッキを引っ込めた状態において低い構造高さを有さねばならないとき、大きな作業行程の用意することが困難である。   In order to check the engine, under certain circumstances it is necessary to remove the crankshaft bearing of the engine and then reassemble it. This is done by a lift device to move the crankshaft bearing during its incorporation or disassembly. In practice, scissor jacks are used. Such scissor jacks have a non-linear lifting stroke. In the case of such a scissor jack, it is difficult to prepare a large work process when it must have a low structural height when the jack is retracted.

本発明の課題は、この問題を解消した新規のリフト装置を提供することにある。   An object of the present invention is to provide a novel lift device that solves this problem.

この課題は請求項１に記載のリフト装置によって解決される。本発明に基づくリフト装置は、第１台座を有する第１本体と、第２台座を有する第２本体と、第１本体を第２本体に連結する管状中間体とを有し、その場合、第１台座から突出する第１本体の突出部が管状中間体の第１端部内に、および第２台座から突出する第２本体の突出部が管状中間体の第２端部内に各々ねじを介して回転可能に案内され、この結果管状中間体の回転によって、一方では中間体が第１本体に対し、他方では同時に第２本体が中間体に対し入れ子式に変位し、即ち、中間体の回転方向に応じ、第１本体と第２本体が互いに接近するか離隔するように変位する。   This problem is solved by the lift device according to claim 1. The lift device according to the present invention includes a first body having a first pedestal, a second body having a second pedestal, and a tubular intermediate body connecting the first body to the second body. The protrusion of the first body protruding from the pedestal is in the first end of the tubular intermediate body, and the protrusion of the second body protruding from the second pedestal is in the second end of the tubular intermediate body via screws. As a result of the rotation of the tubular intermediate body, the intermediate body is displaced relative to the first body on the one hand and at the same time the second body is telescopically displaced relative to the intermediate body on the other hand, ie the direction of rotation of the intermediate body Accordingly, the first body and the second body are displaced so as to approach or separate from each other.

本発明によるリフト装置では、低い構造高さで大きな作業行程が実現できる。また本発明に基づくリフト装置は、線形昇降行程並びに昇降行程全体にわたり一定した動力展開を提供する。本発明によるリフト装置の他の利点は、このリフト装置が全昇降行程にわたり自己鎖錠されることにある。本発明によるリフト装置は簡単に取り扱え、軽量である。   In the lift device according to the present invention, a large working stroke can be realized with a low structural height. The lifting device according to the invention also provides a constant power development throughout the linear lifting stroke as well as the entire lifting stroke. Another advantage of the lifting device according to the invention is that it is self-locking over the entire lifting stroke. The lifting device according to the invention is easy to handle and lightweight.

第１台座から突出する第１本体の突出部を管状に形成し、もって管状中間体の回転に伴い両本体が接近運動した際、第２台座から突出する第２本体の突出部が、第１本体の管状突出部の中にもぐり込むようにするとよい。   The projecting portion of the first main body projecting from the first pedestal is formed in a tubular shape, and thus when the two main bodies approach each other as the tubular intermediate body rotates, the projecting portion of the second main body projecting from the second pedestal is the first It is good to dig into the tubular protrusion of the main body.

第１本体の突出部と中間体との間のねじ並びに第２本体の突出部と中間体との間のねじが、異なるねじれ方向、異なるねじピッチ、異なる直径を有し、その第２本体の突出部と中間体との間のねじが大きなねじピッチを有すると好ましい。   The screw between the protrusion of the first body and the intermediate body and the screw between the protrusion of the second body and the intermediate body have different twist directions, different screw pitches, and different diameters. It is preferable that the screw between the protrusion and the intermediate body has a large screw pitch.

本発明の有利な実施態様を、従属請求項および以下の実施例の説明で明らかにする。   Advantageous embodiments of the invention are revealed in the dependent claims and in the following description of the examples.

以下、図を参照して本発明の実施例を詳細に説明するが、本発明はこれら実施例に限定されない。   Hereinafter, examples of the present invention will be described in detail with reference to the drawings, but the present invention is not limited to these examples.

図１〜３は各々異なった位置（状態）にある本発明に基づくリフト装置１０を断面図で示す。図１では本発明に基づくリフト装置１０は完全に引っ込められ、図３では完全に繰り出されている。図２は、図１の完全に引っ込められた位置と図３の完全に繰り出された位置との間の位置にある本発明に基づくリフト装置１０を示している。   1-3 show, in cross-section, the lifting device 10 according to the invention in different positions (states). In FIG. 1, the lifting device 10 according to the present invention is fully retracted, and in FIG. 3, it is fully extended. FIG. 2 shows the lifting device 10 according to the invention in a position between the fully retracted position of FIG. 1 and the fully extended position of FIG.

図１〜３において、本発明に基づくリフト装置１０は２個の本体、即ち第１本体１１と第２本体１４を備える。第１本体１１は第１台座１２と該台座１２から突出する突出部１３、第２本体１４は第２台座１５と該台座１５から突出する突出部１６とを備える。   1 to 3, the lift device 10 according to the present invention includes two main bodies, that is, a first main body 11 and a second main body 14. The first main body 11 includes a first pedestal 12 and a protruding portion 13 protruding from the pedestal 12, and the second main body 14 includes a second pedestal 15 and a protruding portion 16 protruding from the pedestal 15.

両本体１１、１４の突出部１３、１６は各々の第１端部が台座１２、１５にねじ結合され且つ溶接され、その溶接は、両本体１１、１４の突出部１３、１６と台座１２、１５とのねじ結合を確実にしている。   The protrusions 13 and 16 of both the main bodies 11 and 14 are screwed and welded to the pedestals 12 and 15 at their first ends, and the welding is performed between the protrusions 13 and 16 of both the main bodies 11 and 14 and the pedestal 12, The screw connection with 15 is ensured.

本発明に基づくリフト装置１０は、両本体１１、１４の他に、管状に形成された中間体１７を有している。   The lift device 10 according to the present invention includes an intermediate body 17 formed in a tubular shape in addition to both the main bodies 11 and 14.

管状中間体１７の第１端部１８において、第１台座１２から突出する第１本体１１の突出部１３が回転可能に案内され、管状中間体１７の第１端部１８とは反対側の第２端部１９において、第２台座１５から突出する第２本体１４の突出部１６が回転可能に案内され、詳しくは各々相応したねじを介して案内されている。   At the first end portion 18 of the tubular intermediate body 17, the projecting portion 13 of the first main body 11 projecting from the first base 12 is rotatably guided, and the first end portion 18 on the opposite side of the first end portion 18 of the tubular intermediate body 17 is guided. At the two end portions 19, the projecting portions 16 of the second main body 14 projecting from the second pedestal 15 are rotatably guided, and in detail, each is guided through a corresponding screw.

第１本体１１の突出部１３と中間体１７との間のねじ並びに第２本体１４の突出部１６と中間体１７との間のねじは異なるねじれ方向を持ち、このため、管状中間体１７が操作ラチェットの作用によって回転され、中間体１７の回転方向に関係して、第１本体１１と第２本体１４が入れ子式に互いに接近又は離隔運動を行う。   The screw between the protrusion 13 and the intermediate body 17 of the first body 11 and the screw between the protrusion 16 and the intermediate body 17 of the second body 14 have different twist directions, so that the tubular intermediate 17 is Rotated by the action of the operation ratchet, the first main body 11 and the second main body 14 are moved closer to or away from each other in relation to the rotation direction of the intermediate body 17.

図１〜３において、第１台座１２から突出する第１本体１１の突出部１３は管状に形成され、このため管状中間体１７の回転により両本体１１、１４が入れ子式に互いに接近運動すると、第２台座１５から突出する第２本体１４の突出部１６が、第１本体１１の管状突出部１３内にもぐり込む。これは図１と図２から理解できる。このため、引っ込めた状態におけるリフト装置の低い構造高さを実現できる。   1-3, the protruding portion 13 of the first main body 11 protruding from the first pedestal 12 is formed in a tubular shape. For this reason, when both the main bodies 11 and 14 are moved closer to each other by the rotation of the tubular intermediate body 17, The protruding portion 16 of the second main body 14 protruding from the second pedestal 15 digs into the tubular protruding portion 13 of the first main body 11. This can be understood from FIG. 1 and FIG. For this reason, the low structural height of the lift device in the retracted state can be realized.

両本体１１、１４の入れ子式接近運動時の両本体１１、１４の両突出部１３、１６の相互のはまり込みを可能にすべく、ねじは異なる直径、従って大きさを持つ。   The screws have different diameters and therefore sizes in order to allow the protrusions 13 and 16 of both bodies 11 and 14 to engage with each other during the telescopic approach of both bodies 11 and 14.

既述の如く、第１本体１１の突出部１３と中間体１７との間のねじ並びに第２本体１４の突出部１６と中間体１７との間のねじは異なったねじれ方向を持つ。またこれらのねじは異なるねじピッチを有し、第２本体１４の突出部１６と中間体１７との間のねじは、第１本体１１の突出部１３と中間体１７との間のねじより大きなねじピッチを有している。このため、管状中間体１７の１回転毎に、第２本体１４は第１本体１１より大きな昇降行程で移動可能である。かくして、大きな昇降距離が生ずる   As described above, the screw between the protrusion 13 and the intermediate body 17 of the first body 11 and the screw between the protrusion 16 and the intermediate body 17 of the second body 14 have different twist directions. These screws have different thread pitches, and the screw between the protrusion 16 of the second body 14 and the intermediate body 17 is larger than the screw between the protrusion 13 of the first body 11 and the intermediate body 17. Has a thread pitch. For this reason, every time the tubular intermediate body 17 rotates, the second main body 14 can move with a larger lifting stroke than the first main body 11. Thus, a large lifting distance occurs.

両本体１１、１４の両台座１２、１５は、本発明に基づくリフト装置１０をその台座１２、１５を経て部材に結合すべく、取付け装置を備える。この結果、本発明に基づくリフト装置は、該装置１０が台座１２、１５を経て結合されている部材を互いに押し離し、引き寄せるために利用される。従って、本発明に基づくリフト装置１０は、圧縮荷重下並びに引張り荷重下で利用される。   Both pedestals 12, 15 of both bodies 11, 14 are provided with attachment devices for connecting the lifting device 10 according to the invention to the members via the pedestals 12, 15. As a result, the lift device according to the invention is used for the device 10 to push away and pull the members joined together via the pedestals 12, 15. Therefore, the lift device 10 according to the present invention is used under a compressive load as well as under a tensile load.

本発明によるリフト装置を、クランクシャフト軸受をエンジンに組込み又はエンジンから取り外すために利用する際、第１本体１１の台座１２を、エンジンのオイルパンないし横桁のような補助装置に結合し、第２本体１４の台座１５をクランクシャフト軸受カバーに結合する。   When the lift device according to the present invention is used to install or remove the crankshaft bearing in the engine, the pedestal 12 of the first body 11 is coupled to an auxiliary device such as an oil pan or a cross beam of the engine. 2 The base 15 of the main body 14 is coupled to the crankshaft bearing cover.

上述のように、管状中間体１７を回転すべく、操作ラチェット２０が中間部材１７に作用し、その際止め輪２１が中間体１７における操作ラチェット２０の位置を確保する。   As described above, the operation ratchet 20 acts on the intermediate member 17 to rotate the tubular intermediate body 17, and the retaining ring 21 secures the position of the operation ratchet 20 in the intermediate body 17.

第１位置にある本発明に基づくリフト装置を操作ラチェットと共に示す。1 shows a lifting device according to the invention in a first position together with an operating ratchet. 第２位置にある本発明に基づくリフト装置を操作ラチェットと共に示す。Fig. 2 shows the lifting device according to the invention in the second position together with an operating ratchet. 第３位置にある本発明に基づくリフト装置を操作ラチェットと共に示す。Figure 3 shows the lifting device according to the invention in the third position together with an operating ratchet.

符号の説明Explanation of symbols

１０ リフト装置、１１ 第１本体、１２ 第１台座、１３ 突出部、１４ 第２本体、１５ 第２台座、１６ 突出部、１７ 中間体、１８ 第１端部、１９ 第２端部、２０ 操作ラチェット、２１ 止め輪 DESCRIPTION OF SYMBOLS 10 Lift apparatus, 11 1st main body, 12 1st base, 13 Protruding part, 14 2nd main body, 15 2nd base, 16 Protruding part, 17 Intermediate body, 18 1st end part, 19 2nd end part, 20 Operation Ratchet, 21 retaining ring

Claims (7)

リフト装置、特にクランクシャフト軸受をエンジンに組込みないしエンジンから取り外すために使われるクランクシャフト軸受リフト装置において、
第１台座（１２）を有する第１本体（１１）と、第２台座（１５）を有する第２本体（１４）と、第１本体（１１）を第２本体（１４）に連結する管状中間体（１７）とを備え、第１台座（１２）から突出する第１本体（１１）の突出部（１３）が管状中間体（１７）の第１端部（１８）内に、第２台座（１５）から突出する第２本体（１４）の突出部（１６）が管状中間体（１７）の第２端部（１９）内に各々ねじを介して回転可能に案内され、このため管状中間体（１７）の回転に伴い、一方で中間体（１７）が第１本体（１１）に対し、他方で同時に第２本体（１４）が中間体（１７）に対し入れ子式に変位し、中間体（１７）の回転方向に応じ、第１本体（１１）と第２本体（１４）が互いに接近運動又は離隔運動するように変位することを特徴とするリフト装置。 Lifting devices, especially crankshaft bearing lifting devices used to incorporate or remove crankshaft bearings from the engine,
A first body (11) having a first pedestal (12), a second body (14) having a second pedestal (15), and a tubular intermediate connecting the first body (11) to the second body (14) A projecting portion (13) of the first body (11) projecting from the first pedestal (12) is located in the first end (18) of the tubular intermediate body (17), and the second pedestal. Projections (16) of the second body (14) projecting from (15) are each rotatably guided via screws in the second end (19) of the tubular intermediate (17), so that the tubular intermediate As the body (17) rotates, the intermediate body (17) is displaced relative to the first body (11) on the one hand, and the second body (14) is simultaneously displaced relative to the intermediate body (17) on the other hand. Depending on the direction of rotation of the body (17), the first body (11) and the second body (14) are displaced so as to move toward or away from each other. Lifting device, characterized in that. 第１台座（１２）から突出する第１本体（１１）の突出部（１３）が管状とされ、このため管状中間体（１７）の回転に伴い両本体（１１、１４）が接近運動した際、第２台座（１５）から突出する第２本体（１４）の突出部（１６）が、第１本体（１１）の管状突出部（１３）の中にもぐり込むことを特徴とする請求項１記載のリフト装置。   The projecting portion (13) of the first main body (11) projecting from the first pedestal (12) is formed into a tubular shape. For this reason, when both the main bodies (11, 14) move closer together with the rotation of the tubular intermediate body (17). The protrusion (16) of the second body (14) protruding from the second pedestal (15) fits into the tubular protrusion (13) of the first body (11). Lift device. 第１本体（１１）の突出部（１３）と中間体（１７）との間のねじ並びに第２本体（１４）の突出部（１６）と中間体（１７）との間のねじが異なるねじれ方向、異なるねじピッチおよび異なる直径を有することを特徴とする請求項１又は２記載のリフト装置。   Twist in which the screw between the protrusion (13) of the first body (11) and the intermediate body (17) and the screw between the protrusion (16) of the second body (14) and the intermediate body (17) are different. 3. Lifting device according to claim 1 or 2, characterized in that it has directions, different thread pitches and different diameters. 第２本体（１４）の突出部（１６）と中間体（１７）との間のねじが大きなねじピッチを有することを特徴とする請求項３記載のリフト装置。   4. Lifting device according to claim 3, characterized in that the screw between the protrusion (16) of the second body (14) and the intermediate body (17) has a large thread pitch. 各本体（１１、１４）を部材に固定し、もって両本体を圧縮荷重下並びに引張り荷重下で利用するために、両本体（１１、１４）の両台座（１２、１５）が取付け装置を有することを特徴とする請求項１から４の１つに記載のリフト装置。   In order to fix each main body (11, 14) to a member and to use both main bodies under compression load and tensile load, both bases (12, 15) of both main bodies (11, 14) have attachment devices. 5. A lifting device according to claim 1, wherein クランクシャフト軸受をエンジンに組込みないしエンジンから取り外すため、第２本体（１４）の台座（１５）がクランクシャフト軸受カバーに結合され、第１本体（１１）の台座（１２）がエンジンのオイルパン或いは横桁等の補助装置に結合されたことを特徴とする請求項５記載のリフト装置。   In order to incorporate or remove the crankshaft bearing from the engine, the base (15) of the second main body (14) is coupled to the crankshaft bearing cover, and the base (12) of the first main body (11) is connected to the engine oil pan or 6. The lift device according to claim 5, wherein the lift device is coupled to an auxiliary device such as a cross beam. 請求項１から６の１つに記載のリフト装置を、クランクシャフト軸受をエンジンに組み込み又はエンジンから取り外すために利用することを特徴とするリフト装置の利用方法。   A lift device according to one of claims 1 to 6, wherein the lift device is used to incorporate or remove the crankshaft bearing from the engine.
JP2007158619A 2006-07-27 2007-06-15 Lift device Pending JP2008030950A (en)

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CN105967088A (en) * 2016-07-01 2016-09-28 南通贝特医药机械有限公司 Lifting structure
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DE102006034627B4 (en) 2011-05-12
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