DE2510083A1 - Column climbing lifting jack - has mechanism in two sections with actuators between and levers engaging with column - Google Patents

Abstract

The jack has a column round which the climbing mechanism fits, the latter comprising first and second sections separated from each other by a power operated actuators, which move them in relation to each other up and down the column. Each section has one or more catch levers rocking on transverse axes between two positions, in one of which they engage with apertures or lugs on the column at regular intervals. Thus as one of the sections is moved by the actuators in relation to the other, at least one lever of the latter engages with the column.

Description

Climbing lifting device The invention relates to a climbing lifting device with a climbing column and a climbing device surrounding it.

The invention is particularly applicable to climbing lifting devices, which have a climbing device, by means of which a load is stored and one after the other or can be gradually moved along a central climbing column.

The invention is also advantageously applicable to climbing devices, which have hydraulic piston assemblies with ratchet levers that extend within about openings distributed over the length of a climbing column can be accommodated.

The climbing lifting device according to the invention is particularly suitable for cases in which the climbing column is stored and the load through the climbing device is carried, which the Klellerstiule uj> igibt and is movable in such a way that she lifts the load by gradually climbing up the column, however, if necessary, the load is supported by an external support and the climbing column can be moved back by the climbing device.

Instead, the load can be carried by the climbing column and auth the surrounding climbing device are held stationary, then the Moving the climbing column over the climbing device and gradually lifting the load, however, also the climbing device, if necessary, along the climbing column can be moved up and down.

A special field of application of the climbing jack according to the invention direction is a device for the progressive erection of concrete walls, wherein the climbing lifting device according to the invention can be used to to lift the formwork support or storage structure in such a device. In such a case, the formwork support structure is through the climbing device carried up to a predetermined height on the climbing column, whereupon the formwork support structure is then supported by an external device while the climbing column is over the climbing device is pulled up to a new position.

In practice it has been shown that climbing is good for that by means of the application of medium pressure fluid to a central column to climb up and thereby lift a common load on two interlocking ones Gripping devices are based.

These gripping devices consist of one or more balls, Rollers, cam lever systems or ratchet lifting blocks with teeth that go in and along Roll, turn or slide a plane, the plane being at an angle to the one through the lifting device is located along the axis of the climbing column.

With these lifting devices, the central column can handle the lifting gripping devices enforce in one direction without grasping the pillar.

As soon as the column is pushed in the opposite direction, However, these gripping devices of the climbing device come into engagement with the Pillar. This type of lifting device is therefore not suitable for receiving Loads acting in every direction along the column.

In practice, these types of gripping devices slide in the climbing device also back along the column during the gripping process, over distances away, depending on the loads applied to the column and the type of gripping principle vary.

Therefore, if a number of these lifting devices below or above one common load is used and all climbing facilities have the same have large stroke, but not necessarily all of the exact same load record, must after several strokes of the climbing devices at their stroke an adjustment be made to ensure that this common load is in a desired Level is raised.

A method of moving a climbing device along with the Load in any of two directions along a central column is present in, to use 5 chatte-like lifting devices, which are operated simultaneously by a common drive shaft or operated by small motors on each lifting device that are chenverbungss by mechanical, electrical or hydraulic interconnection The speed of the systems is synchronized. All of these systems are however, it is impractical and relatively expensive or laborious, and they also have to be added are less powerful and effective than hydraulically operated lifting devices.

Based on this, the invention is based on the object of providing a To create climbing lifting device that allows relative movement between the climbing device and the climbing column in any direction. By means of the to be created Climbing lifting device it should be possible to use a number of climbing devices operated at the same time to lift a common or a separate load, for example loads that should remain in the same plane.

The features of the device created to solve this problem result from the claims.

Preferably, as provided in the device according to the invention Force generating device one or more hydraulic piston assemblies for use.

Instead, the force suction device can also consist of a or several pneumatic piston assemblies or some other form of force application devices exist.

A plurality of force application or generation is preferred -devices arranged around the climbing column at a distance.

Each climbing lifting section preferably has a plurality of ratchet levers which are arranged at a distance around the climbing column.

The climbing column is preferably designed as a tube, and there are the openings are provided in the wall of this pipe.

The invention is described below in the form of a preferred embodiment explained in more detail with reference to the drawing. This shows in: Fig. 1 a first preferred Embodiment of the climbing lifting device according to the invention in front view and Fig. 2 in plan view; 3 shows a section along line 3-3 in FIG. 2, but with only the upper portion of the lifting device according to FIG. 1 is shown; Fig. 4 is a front view taken along line 4-4 in Fig. 3; Fig. 5 is a front view according to Line 5-5 in Fig. 3 and Fig. 6 in side view a second preferred embodiment the lifting device according to the invention.

In the first preferred embodiment shown in FIGS. 1-5 a climbing tube 10 is a hollow elongated member that has a plurality of openings 11 has. These are evenly dense over the length of the lifting tube 10 Provided a distance from each other and take double-acting sets of pawls 12a, 12b, 12c and 12d or similar devices which are attached to a climbing device 13 are attached. This in turn carries the load to be lifted for the fastening straps 14 with holes 15 arranged therein for receiving fastening bolts, not shown can be provided.

The climbing device 13 consists of upper and lower pawl support sections 16 and 17, respectively, which are separated from one another but with one another by a pair of hydraulic piston assemblies 18 are connected, which on opposite sides of the climbing column 10 are arranged. Each hydraulic piston 18 has a cylinder body 19, which means a bolt 25 on a lower flange 26 of the lower pawl support section 17 is attached, and a piston 21, which is located within the cylinder body 19 can move and is connected to a piston rod 22, which extends through a Closure member 23 through to a bolt connection 20 on a lower flange 24 of the upper pawl support portion 16 extends. In the upper end of each cylinder body 19 is a passage 27 for pressure medium fluid is provided, which is via a not shown Selector valve is in flow connection with a pressure medium source, so that on the side of the piston rod of each piston 21 is supplied with pressure medium fluid or therefrom can be led away. In the lower end of each cylinder body 19 is another Passage 28 is provided which is also in flow communication with the selector valve stands, so that the opposite side of the piston 21 is also supplied with pressure medium fluid or can be led away from it. The piston 21 has a circumferential direction extending sealing member, also around the piston rod 22 and in the closure member 23 suitable sealing members are arranged to seal the hydraulic piston assembly. Relative movement between the upper and lower pawl support sections 16, 17-will achieved in that optionally pressure medium fluid on the one side of the piston is fed and fed back from the other side, namely by means of a suitable selector or switching valve, which is known per se is.

Each pawl support section 16 and 17 respectively has a main housing 29 and 30, in which the sets of pawls 12a, b, c and d are mounted, and each one Auxiliary housing 31 or 32, which contains mechanisms to selectively the pawls in Press positions in which a relative movement between the climbing device 13 and the climbing pipe 10 is made possible in opposite directions. The housing 29 for the upper pawl support section 16 carries the pawl sets 12a, 12b, which are arranged one above the other on bearing axles 33a, 33b, the axles are arranged in the middle between the ends of the respective pawls. The housing 30 for the lower pawl support section 17 carries the pawl sets 12c, 12d, which are arranged one above the other on axes 33c and 33d. Here are these Axles are also provided in the middle between the ends of the respective pawls.

Since the structural details of each pawl support section 16, 17 correspond to each other, the following description refers in conjunction 3, 4 and 5 only refer to the formation of the upper section 16.

The main housing 29 has two halves 34, 35 in their end faces Holes are provided which serve as storage locations for the axles 33a, 33b. The two halves 34, 35 are in the assembled state by means of screw bolts 36 attached to each other. The auxiliary case 31 is on an end face of the main case 29 attached by means of offset bolts 37 and contains the mechanism for optional resilient actuation of the pawls.

The pawls 33a, 33b of each pawl set are wffilweise in their Depressed positions in which either their lower or their upper ends are Support on the climbing pole 10 and at different times during the work process come into engagement with the openings 11 of the climbing pole 10.

The mechanism to selectively operate or pretension the pawls such that either their lower or upper ends with the climbing pole 10 in Intervention, as can be seen in particular from FIGS. 3 and 4, each has for the pawls 33a, 33b of each pawl set on a lever 38a and 38b, respectively, which are attached to the corresponding axes 33a, 33b are attached. The one from their liaison with The ends of the levers 38a, 38b remote from the axes each carry pins 39a and 39b, which are slidably engaged with slots 40a and 40b, respectively, which in turn are provided in a vertically movable sliding plate 41.

As can be seen in particular from FIG. 3, the sliding plate is 41 formed fork-shaped at both ends, the legs of each fork on each other opposite sides of the respective levers 38a, 38b lie. For every handle a pair of torsion springs 42a, 43a and 42b, 43b are provided. A torsion spring 42a or 42b of each pair of springs is at one end around the respective mounting axis 33a, 33b wound around in one direction and extending to the associated one Pin 39a or 39b, on which it, as can be seen from the drawing, in opposite direction is engaged. The other torsion spring 43a or 43b of each pair of springs stands with the axis 33a or 33b and the associated pin 39a, 39b engage in the opposite direction, as in particular from FIG. 4 evident.

When the sliding plate 41 is in the upper position according to FIG. 4, the levers 38a, 38b are inclined upward, and the orientation the Storage axes 33a, 33b is such that the pawls 12a, 12b with their lower Ends are pressed against the climbing pole 10. This is where the torsion springs practice 42a, 42b in this position a counterclockwise force acting on the bearing axes 33a, 33b and hold the pawls in the orientation shown in FIG or position, which causes the lower pawl ends when they are with a corresponding Align opening 11, move into and engage with this opening come.

To change the position of the pawls so that their upper ends are pressed against the climbing pole 10, the sliding plate 41 is down moved, at the same time the levers 38a, 38b in a downwardly inclined position be pulled and a lateral movement of the in the slot holes 40a and 40b recorded pins 39a, 39b eriblgt. The bearing axes 33a, 33b are around one corresponding amount twisted so that the upper ends of the attached thereto Attach the pawls to the climbing pole 10 and during the various stages of work of the lifting device come into engagement with a respective opening 11. The rotation of the levers 38a, 38b acts on the respective axes 33a, b Torsional action of the torsion springs 42a, 42b canceled, while now the torsion springs 43a, b come into action and influence or move axes 33a, b clockwise. twist so that the top ends of the pawls move under pressure from the climbing pole 10 create.

As can be seen in particular from FIGS. 3 and fi, each pawl has 12a, b at each end and on both sides cutouts, each with a raised Form part 44a, b and shoulders 45a, b. The raised parts 44a, b have a Width, which is slightly smaller than the width of the opening 11, so that this raised parts 44 a, b inserted into the openings 11 will and can engage with these, while the shoulders 45a, b with the surfaces come into engagement near the edges of the openings 11 and bear there, whereby the length of the pawl part penetrating into the opening is limited which corresponds to the height of the raised parts 44a, b.

To move the sliding plate 41 vertically and thereby both change the position of the pawls 12a, b as well as the spring forces exerted thereon to be able to, is the central portion of the sliding plate 41 with a through slot 46 provided, as can be seen from Fig. 4, in which one at one end of a sliding lever 48 arranged pin 47 is received. The opposite end of the sliding lever 48 is attached to a sliding shaft 49, which is the end face of the auxiliary housing 31 penetrated and has an outer end 50, which is not shown with a to be keyed drive can be brought into engagement to the sliding shaft 49 to be able to turn in any direction. The rotation of the shaft 49 rotates also move the shift lever 48 attached to it to the dot-dash position 48 ' according to FIG. 4, whereby the pin 47 cooperating with the slot 46, the sliding plate 41 pulls down and moves all pawls into a position in which yours Attach the upper ends to the climbing pole 10. By turning the sliding shaft 49 by another 1800 in either of two possible directions becomes the lever 48 shifted or pivoted back into the upper position according to FIG. 4, whereby also all pawls are brought back into the position according to FIG. 4 and at the same time the direction of the forces exerted by the torsion springs is regulated or is set.

The pawls 12a, b or 12c, d of each section 16, 17 are in one Spaced apart which is greater than the distance between neighboring Openings 11, in such a way that at any given point in time only a single Set of pawls in each pawl support section 16, 17 in engagement with the openings 11 (see FIGS. 1 and 5) is when the sections 16, 17 are in a fixed position with respect to the climbing pole 10 are located. The one from the hydraulic piston assemblies 18 exerted stroke is chosen such that the relative movement between each section 16, 17 and the climbing pole 10 takes place over a distance in such a way that each one of the sets of pawls of each section previously disengaged from the openings stood, is now moving into the engaged position, while at the same time the other Pawl set that was previously engaged with the openings is now disengaged is brought with these openings.

In order to put the climbing device 13 in a position to move longitudinally to move the load-bearing climbing pole 10 upwards, all Pawls 12a, b, c and d, as can be seen in particular from FIG. 1, in the position pressed according to Fig. 1, which means that they with their lower ends on the climbing pole 10 abut and there are in engagement with the openings 11 or in engagement come looking. In the position shown in FIG. 1, the lower set of pawls 12b of the upper section 16 and the upper set of pawls 12c of lower section 17 in Engagement with the openings 11, while this does not apply to the pawls 12a and 12b. When fluid pressure is applied through lower passage 28 and fluid is through the upper passages 27 is diverted therethrough, the hydraulic piston assemblies lift 18 to the upper portion 16, with during the upward movement the lower pawls over the entire stroke of the hydraulic piston assemblies 18 12b come out of engagement with the openings 11 and then, after reaching the full stroke, the upper pawls 12a come into engagement with the openings 11, wherein these openings are at a distance of two Openings above those openings with which the pawls 12b are disengaged have been. In the meantime, the lower section 17 is with respect to the climbing pole 10 remained stationary and supported on the pawls 12c, which are in engagement with the Openings 11 have remained. When the supply of the pressure medium fluid to the hydraulic piston assemblies 18 is reversed, the upper portion 16 remains with respect to the climbing pole 10 stationary and supported on the pawls 1! 2a, while the lower section 17 lifts and again reaches the upper section 16, the upper pawls 12c come out of engagement with the openings 11 against the action of their torsion springs and the lower pawls 12d are engaged therewith upon reaching an opening. If, in turn, the supply of the pressure medium fluid to the hydraulic piston assemblies 18 is reversed, the upper section 16 rises again, the pawls 12a come out of engagement with the opening 11 the pawls 12b move on their way in into and engage the next set of openings while the lower portion 17 remains supported on the pawls 12d. If again the The supply of the pressure medium fluid to the hydraulic piston assemblies 18 is reversed, the lower section 17 rises and reaches the upper section 16 again, the pawls 12d disengage from their openings iX which move the pawls 12c on their way into the next set of openings 11, and it is the position of all Pawls returned to the position of FIG. 1 with respect to their engagement with the openings with the exception, however, that the entire lifting device is actually has increased by a distance equal to the distance between an adjacent pair of openings is equivalent to. When the cycle of movement is repeated, the elevator will climb and thus also the load suspended from it further up the climbing pole 10.

If desired, the climbing pole 10 through the climbing device 13 to lift, d. H. when the climbing device 13 is held at a fixed height and the climbing pole 10 is to be raised by means of the device 13, like this is required, for example, to continuously erect a building wall, the position of all pawls is reversed in the manner described above, in such a way that the upper ends of all pawls with the openings 11 in To intervene or seek to intervene. The pawls no longer rest on the lower edges of the openings, as was the case when the climbing device was up moved up along the climbing pole, but lie the upper edges of the openings 11, which during the movement of the hydraulic piston assembly has the consequence that the climbing pole 10 is pushed upwards by the climbing device 13, while at the same time the climbing device 13 is held in a stationary position.

In the modified embodiment shown in FIG The upper and lower sections 16 ', 17' as well as correspond to climbing device the climbing pole 10 'basically corresponds to the corresponding parts of the embodiment according to Fig. 1 - 5. In this respect, the arrangement and mode of operation of the pawls as well the mechanism for reversing the pawl position, by means of which the direction of relative movement is reversed between the climbing device and the climbing pole, identical.

In the embodiment according to FIG. 6, the modification relates only on the hydraulic piston assembly, by means of which a relative movement between the upper and lower sections 16 ', 17' is achieved.

In the embodiment according to FIG. 6, the hydraulic piston assemblies are 18 and their connecting parts with the upper and lower sections 16, 17, such as they are provided in the embodiment according to FIGS. 1-5, are not present. Of the lower lifting portion 17 has at his upper end a one-piece hereby formed or a conical connecting part 51 attached to it, that in an upwardly extending cylindrical flange 52 with external threads flows out. Furthermore, a cylindrical outer sleeve 53 is provided, which at its one End 54 has an internal thread cooperating with the threaded flange 52. That The lower end of the lifting section 16 'also has an integral therewith or attached to it conical connecting part 55, which at 56 with an internal thread is provided and a hollow piston support part 57 receives. This surrounds the climbing pole 10 'and extends within the sleeve 53 coaxially at a distance therefrom below, with the lower end 58 of the outer sleeve 53 in a circular opening 59 protrudes within the flange 52 and the connecting part 51 of the lower lifting portion 17 'is provided.

Between the piston support part 57 and the sleeve 53 is near the threaded flange 52 a lower sealing member 60 is arranged, which for engagement with the lower The internal thread provided at the end 54 of the sleeve 53 is provided with an external thread Part 61 carries and also carries a number of inner and outer sealing rings. The upper end of the sleeve 53 is internally threaded at 62 and takes an upper sealing member 63 provided with a corresponding external thread, which is arranged between the sleeve 53 and the piston support part 57 and a number inner and outer sealing rings.

Due to the arrangement and design of the sleeve 53, the piston support part 57 and the sealing members 60, 63 an effectively sealed annular space is created, in the means of passages 64, 65 which are provided in the sleeve 53 near both ends thereof are, pressure medium fluid can be introduced or led out alternately. The piston support part 57 carries an annular piston member 66 attached thereto, which has sealing rings 67 on its outer circumference and together with the piston support part 57 Is movable back and forth when on the one hand through the passage 64 pressure medium fluid directed to one side of the piston member 66 and on the other hand the pressure medium fluid is discharged on the other side of the piston through the passage 65 (or vice versa). This arrangement is only an alternative to using the separate Hydraulic piston assembly 18 of the embodiment according to FIGS. 1-5.

Of course, the hydraulic piston assemblies 18 can through pneumatically acting piston arrangements or instead by any other Form of a force generating device to be replaced between the upper and the lower Helbeabsclmitt 26 7 is arranged It is of course also possible to provide the training so that the pawls with their ends in engagement with Protrusions come out on the outer surface of climbing poles with full cross-section or are provided by climbing pipes with a hollow cross-section. Instead of openings to provide, it is also possible to arrange the openings in a solid body, wherein they then only consist of recesses that are evenly spaced in the Surface of columns with full cross-section distributed over the length is provided are.

Although each lifting section 16, 17 or 16 ', 177 has two sets of pawls carries, in a simplified embodiment, only one set of pawls be provided in each section, and it can be the stroke of the piston assemblies, the Distance between the openings 11 and the distance between the pawls of the lower and upper section be arranged or selected such that while a section moves relative to the climbing pole or the climbing pole moves through one of the Sections moved therethrough, the pawls in the other section in engagement with the Openings come and support the climbing equipment.

The various parts of the overall arrangement can be made from any suitable Material, such as steel, be made.

Claims (10)

Claims 1. Climbing lifting device with a climbing column and a surrounding one Climbing device, characterized in that the climbing device (13) has a first and second climbing lifting section (16, 17), which the climbing column (10) and surrounded by at least one force generating device (18) from each other are separated, by means of which one of the climbing lifting sections (16, 17) is relative to the other along the climbing column (10) is movable, each climbing lifting section (16, 17) at least one ratchet lever (12a-d) or a similar device carries around a storage axis extending transversely to the longitudinal axis of the climbing column (13) (33a-d) can be pivoted between positions in which one of the ends of the ratchet lever (12a - d) with a large number of evenly spaced along the climbing column (13) arranged openings (11) or projections comes into or out of engagement, and that during the movement taking place by means of the force generating device (18) of the one climbing lifting section relative to the other climbing lifting section at least one of the ratchet levers (12a-d) of the other climbing lifting section in engagement with one of the openings (11) or Protrusions. 2. Apparatus according to claim 1, characterized in that the first and second climbing lifting section (16, 17) each two sets of ratchet levers (12a, b; 12c, d) or similar devices, wherein the one ratchet lever set (12a, b) is arranged at such a distance above the other (12c, d) that in any fixed position of the relevant climbing lifting section relative to the climbing column (13) only one ratchet lever set in engagement with adjacent openings (11) or protrusions is, and when a movement of the climbing lifting section along the climbing column (13) via the force generating device (18) intended full removal disengaged the pawl levers of one set their respective openings (11) or projections come and the pawl levers of the other of the two sets in engagement with the immediately closest on their way arranged openings (11) or projections come. 3. Apparatus according to claim 1 or 2, characterized in that each ratchet lever (12a-d) is mounted on a bearing axis (33a-d) which is pivotable in such a way that one of the ratchet lever ends in those positions can be brought, in which it is connected to the openings (11) or projections of the climbing column (13) is engaged or disengaged. 4. Device according to one of claims 1 - 3, characterized in that that each ratchet lever (12a - d) cooperates with a spring device (42a, b, 43a, b), by means of either one of the latch lever ends in the direction of the climbing column (13) and can be pressed against this, this ratchet lever end when it is with an opening (11) or a projection of the climbing column (13) is in engagement comes with this opening or this projection, during this latch lever end against the action of the spring device out of engagement with the opening or the projection occurs when it is moved out of alignment with the opening or protrusion. 5. Apparatus according to claim 4, characterized in that the spring device has a pair of springs (42a, 43a or 42b, 43b) for each pawl lever (12a - d), one of which is to press one end of the pawl lever against the climbing column (13) while the other spring seeks the other end of the pawl lever against the climbing column pushes when this other end of the pawl lever with respect to the openings (11) or projections is pivoted into an engaged position or disengaged position. 6. Apparatus according to claim 3 and 5, characterized in that each bearing axis (33a-d) for each ratchet lever (12a-d) of a respective one Climbing lifting section (16, 17) with a common displacement device (41) cooperates and that in each case one of the springs of each spring pair of the ratchet lever (12a-d) interacts with the bearing axis (33a-d) and the displacement device (41) such that on the bearing axis a torsional or rotational force and therefore on the concerned ratchet lever a spring force is exerted, while the other spring during the rotation of the axis in opposite direction a torsion resp. Torque exerts. 7. Device according to one of claims 1 - 6, characterized in that that the force generating device consists of at least one hydraulic piston arrangement (18) exists between the first and second climbing lifting section (16, 17) is arranged. 8. Apparatus according to claim 7, characterized in that on the one hand the climbing device (13) is each provided with a hydraulic piston assembly (18) is. 9. Apparatus according to claim 7, characterized in that a single the climbing column (13) surrounding hydraulic piston assembly is provided. 10. Device according to one of claims 1 - 9, characterized in that that one of the two Klefterhebeabschnifte (17) has a device (14, 15) for fixing has a load to be lifted.