CN101112965A

CN101112965A - Hoisting device

Info

Publication number: CN101112965A
Application number: CNA2007101383434A
Authority: CN
Inventors: P·德鲁克米勒; W·米歇勒
Original assignee: MAN Diesel SE
Current assignee: MAN Energy Solutions SE
Priority date: 2006-07-27
Filing date: 2007-07-27
Publication date: 2008-01-30
Also published as: JP2008030950A; FI20070364A0; KR20080011035A; FI20070364L; DE102006034627B4; DE102006034627A1

Abstract

The invention relates to a lifting device, in particular for mounting or dismounting a crankshaft bearing in or from an internal combustion engine, comprising a first base body (11) having a first platform (12), a second base body (14) having a second platform (15), and a tubular intermediate body (17) coupling the first base body (11) to the second base body (14), wherein a section (13) of the first base body (11) projecting relative to the first platform (12) is guided in a first end (18) of the tubular intermediate body (17) and a section (16) of the second base body (14) projecting relative to the second platform (15) is guided in a second end (19) of the tubular intermediate body (17) in a rotatable manner by a thread, so that by rotating the tubular intermediate body (17), on the one hand the intermediate body (17) can be mounted or dismounted relative to the first base body (11), And while on the other hand the second base body (14) can be telescopically adjusted relative to the intermediate body (17), i.e. in such a way that: depending on the direction of rotation of the intermediate body (17), either the first base body (11) and the second base body (14) are moved towards each other or the first base body (11) and the second base body (14) are moved away from each other.

Description

Hoisting device

Technical field

The present invention relates to a kind of hoisting device, in particular for the crankshaft bearing hoisting device that crankshaft bearing is installed in the combustion engine or crankshaft bearing is taken apart from combustion engine.

Background technology

In order to keep in repair combustion engine, need in some cases the crankshaft bearing in the combustion engine is disassembled, and need reinstall back, wherein this need realize by means of hoisting device, makes crankshaft bearing can move when assembling and dismounting.According to practice, at the hoisting device of this use based on lever principle.What this hoisting device based on lever principle used is the non-linear stroke that hoists.If this in addition lever jack will have the small construction height under the immigration state, it is difficult to the forced stroke that provides bigger so.

Summary of the invention

Set out thus, task of the present invention is to provide a kind of later-model hoisting device.This task is finished by the hoisting device of claim 1.Hoisting device according to the present invention comprises having first flat-bed, first matrix, the intermediate that has second flat-bed, second matrix and first matrix is coupled to the tubulose on second matrix, wherein the section that stretches out with respect to first platform of first matrix is in the first end of tubulose intermediate, and the section that stretches out with respect to second platform of second matrix rotatably is directed by screw thread respectively in the second end of tubulose intermediate, thereby intermediate by the rotation tubulose, intermediate can be with respect to first matrix on the one hand, and second matrix can be regulated with respect to intermediate telescopicly on the other hand simultaneously, just by this way: the hand of rotation that depends on described intermediate, perhaps first matrix and second matrix move mutually in opposite directions, and perhaps first matrix and second matrix (14) are separated from each other mobile.

By hoisting device according to the present invention, can when the small construction height, realize big forced stroke.In addition, hoisting device according to the present invention has the linear stroke that hoists, and has constant force apply on the whole stroke that hoists.Be that according to another advantage of hoisting device of the present invention it is self-locking on whole stroke.According to hoisting device of the present invention manual control simply, and has less deadweight.

The section preferable configuration of stretching out with respect to first platform of first matrix is a tubulose, thereby when the intermediate by the rotation tubulose made these two matrixes mobile in opposite directions mutually, the section that stretches out with respect to second platform of second matrix entered in the tubular section of first matrix.

Screw thread between the section of first matrix and intermediate and preferably have different rotation directions, different pitch and different diameters at the section of second matrix and the screw thread between the intermediate, wherein section and the screw thread between the intermediate at second matrix has bigger pitch.

Description of drawings

Provide advantageous modification of the present invention by dependent claims and explanation subsequently.Illustrate in greater detail embodiments of the invention according to illustration, but be not limited to this.Accompanying drawing illustrates:

Fig. 1: hoisting device according to the present invention is together with handling the cross-sectional plane of ratchet on primary importance;

Fig. 2: hoisting device according to the present invention is together with handling the cross-sectional plane of ratchet on the second place; With

Fig. 3: hoisting device according to the present invention is together with handling ratchet at the 3rd locational cross-sectional plane.

Reference numerals list

10 hoisting device

11 first matrixes

12 first platforms

13 sections

14 second matrixes

15 second platforms

16 sections

17 intermediates

18 first ends

19 the second ends

20 handle ratchet

21 snap rings

The specific embodiment

Fig. 1 to 3 shows respectively according to the cross-sectional plane of hoisting device 10 of the present invention on diverse location, and wherein in Fig. 1, hoisting device 10 according to the present invention moves on to together fully, then removes fully in Fig. 3.Fig. 2 shows a position according to hoisting device 10 of the present invention, i.e. a position between the state that shifts out fully among the state that moves into fully in Fig. 1 and Fig. 3.

According to Fig. 1 to 3, hoisting device 10 according to the present invention has two matrixes, just first matrix 11 and second matrix 14, wherein first matrix 11 has one first platform 12 and section 13, the second matrixes 14 that stretch out with respect to first platform 12 have one second platform 15 and a section 16 that stretches out with respect to second platform 15.

Two

matrixes

11 and 14

section

13 and 16 tighten and weld at first end and

corresponding platform

12 and 15 respectively, and wherein being threaded between the

platform

12,15 of

section

13,16 and two

matrixes

11,14 guaranteed in welding.

Except two

matrixes

11 and 14, also comprise an intermediate 17 according to hoisting device of the present invention, this intermediate 17 is configured to tubulose.

The section 13 that stretches out with respect to first platform 12 of first matrix 11 rotatably is directed in the first end 18 of tubulose intermediate 17, the section 16 that stretches out with respect to second platform 15 of second matrix 14 rotatably is directed at the second end 19 intermediate 17, that be arranged in first end 18 opposites, exactly passes through respective threads separately.

Wherein has different rotation directions at the section 13 of first matrix 11 and the screw thread between the intermediate 17 and at the section 16 of second matrix 14 and the screw thread between the intermediate 17, thereby when tubulose intermediate 17 is rotated by manipulation ratchet 20 is set, the rotation direction that depends on intermediate 17, perhaps first matrix 11 and second matrix, 14 telescopic ground move mutually in opposite directions, and perhaps first matrix 11 and second matrix 14 are separated from each other mobile telescopicly.

According to Fig. 1 to 3, the section 13 that stretches out with respect to first platform 12 of first matrix 11 is configured to tubulose, thereby when the intermediate 17 by the rotation tubulose made these two

matrixes

11 and 14 mobile in opposite directions mutually telescopicly, the section 16 that stretches out with respect to second platform 15 of second matrix 14 entered in the tubular section 13 of first matrix 11.This can be learnt by Fig. 1 and Fig. 2.Can under the state that moves on to a place, realize the system height of less hoisting device thus.

For on two

matrixes

11 and 14 telescopic ground when mobile in opposite directions mutually, realize two sections 13 of two

matrixes

11 and 14 and 16 mutual immigration, described in addition screw thread has different diameters, is of different sizes thus.

As what illustrated, has different rotation directions at the section 13 of first matrix 11 and the screw thread between the intermediate 17 and at the section 16 of second matrix 14 and the screw thread between the intermediate 17.Described in addition screw thread has different pitch, wherein has than in the section 13 of first matrix 11 and the bigger pitch of screw thread between the intermediate 17 at the section 16 of second matrix 14 and the screw thread between the intermediate 17.Therefore make every circle rotation for tubulose intermediate 17, second matrix 14 realize the stroke bigger than first matrix 11.Can provide big forced stroke thus.

Two

platforms

12,15 of two

matrixes

11,14 have anchor fitting, are used for the

platform

12,15 of hoisting device according to the present invention by it is connected with parts.Both can be used for the pressure branch of parts, also can be used for the drawing of parts according to hoisting device of the present invention thus, be connected with described parts according to the

platform

12,15 of hoisting device of the present invention by two matrixes 11,14.According to hoisting device 10 of the present invention correspondingly not only can under the compression effort, but also can under tensile stress, use.

When use is used for crankshaft bearing is installed to combustion engine or takes apart crankshaft bearing according to hoisting device of the present invention from combustion engine, the platform 12 of first matrix 11 preferably with the oil pan of combustion engine or with supplementary equipment therefore for example crossbeam be connected, and the platform 15 of second matrix 14 is connected with the crankshaft bearing cap of crankshaft bearing.

As what illustrated, in order to make 17 rotations of tubulose intermediate, effect has the ratchet 20 of manipulation on intermediate 17, and wherein snap ring has guaranteed to handle the position of ratchet 20 on intermediate 17.

Claims

1. hoisting device, in particular for the crankshaft bearing hoisting device that crankshaft bearing is installed in the combustion engine or crankshaft bearing is taken apart from combustion engine, comprise first matrix (11) with first platform (12), have second matrix (14) of second platform (15) and the intermediate (17) that first matrix (11) is coupled to the tubulose on second matrix (14), wherein the section (13) that stretches out with respect to first platform (12) of first matrix (11) is in the first end (18) of tubulose intermediate (17), and the section (16) that stretches out with respect to second platform (15) of second matrix (14) rotatably is directed by screw thread respectively in the second end (19) of tubulose intermediate (17), thereby intermediate (17) by the rotation tubulose, intermediate (17) can be with respect to first matrix (11) on the one hand, and second matrix (14) can be regulated with respect to intermediate (17) telescopicly on the other hand simultaneously, just by this way: the hand of rotation that depends on described intermediate (17), perhaps first matrix (11) and second matrix (14) move mutually in opposite directions, and perhaps first matrix (11) and second matrix (14) are separated from each other mobile.

2. according to the described hoisting device of claim 1, it is characterized in that, the section (13) that stretches out with respect to first platform (12) of described first matrix (11) is configured to tubulose, thereby when the intermediate (17) by the rotation tubulose when making these two matrixes (11,14) mobile in opposite directions mutually, the section (16) that stretches out with respect to second platform (15) of second matrix (12) enters in the section (13) of tubulose of first matrix (11).

3. according to claim 1 or 2 described hoisting device, it is characterized in that the screw thread between the section (13) of described first matrix (11) and intermediate (17) and have different rotation directions, different pitch and different diameters at the section (16) of described second matrix (14) and the screw thread between the intermediate (17).

4. according to the described hoisting device of claim 3, it is characterized in that the screw thread between described section in second matrix (14) (16) and the intermediate (17) has bigger pitch.

5. according to one or multinomial described hoisting device in the claim 1 to 4, it is characterized in that, the platform (12,15) of described two matrixes (11,14) has anchor fitting, be used for matrix (11,14) separately is connected with parts, and under compression effort or tensile stress, use described hoisting device thus.

6. according to the described hoisting device of claim 5, it is characterized in that, for being installed in the combustion engine or with crankshaft bearing, crankshaft bearing from combustion engine, takes apart, the platform of described second matrix can be connected with crankshaft bearing cap, and the platform of described first matrix can with the oil pan of combustion engine or with supplementary equipment therefore for example crossbeam be connected.

According in the claim 1 to 6 each or multinomial described, be used for that crankshaft bearing is installed to combustion engine or the application of hoisting device that crankshaft bearing is taken apart from combustion engine.