Multiple pulley and cable plough system

Abstract

Multiple deflection pulley (10) for transmitting a tensile force from one or more traction units to a cable plough, comprising a roller block (11) with two or more deflection rollers (12) arranged parallel to one another, wherein the deflection rollers (12) are firmly connected to one another and have a common axis of rotation (D).

Description

The invention relates to a multiple deflection roller for transmitting a pulling force from one or more pulling units to a cable plough and to a cable plough system comprising such a multiple deflection roller.For inserting lines, in particular pipes or cables, into the ground, so-called cable ploughs can be used. Such cable ploughs comprise a blade suitable for engaging into the ground in order to form an earth trough, and a line guide for inserting the line into the earth trough formed or formable by the blade, wherein the line guide is arranged behind the blade in a provided direction of travel. For introducing the line into the ground, the cable plough is pulled through the ground by means of a traction unit, for example a cable winch or a towing vehicle. The pulling unit and the cable plough are usually spaced apart from one another and are connected to one another by a pulling means, for example a pulling cable. The traction means serves in particular for transmitting the traction force. Under certain circumstances it is necessary to guide the traction means over a deflection roller. Furthermore, it may also be necessary for the cable plough to be pulled by a plurality of pulling units via a plurality of pulling means, for example in the case of high loads or difficult terrain.It is therefore the object of the invention to specify a new multiple deflection roller, in particular a multiple deflection roller, which enables a transmission of a pulling force from both one and from a plurality of pulling units to a cable plough. It is furthermore an object of the invention to specify a new cable plough system, in particular a cable plough system comprising a multiple deflection roller of this type.This object is achieved with respect to the multiple deflection roller by the features of claim 1 and with respect to the cable plough system by the features of claim 10.The multiple deflection roller according to the invention comprises a roller block with two or more deflection rollers arranged parallel next to one another, wherein the deflection rollers are firmly connected to one another and have a common axis of rotation.The advantages of the invention lie in particular in the simple construction and the associated simple construction of the multiple deflection roller and the associated cost saving during production. Further advantages are ease of handling, maintenance and low susceptibility to errors.According to a further development of the invention, the roller block has a plurality of, in particular four, wall elements, wherein in each case one deflection roller is arranged between in each case two wall elements and / or is rotatably mounted, wherein in each case one deflection roller arranged between two wall elements forms a roller block unit together with the associated wall elements. The wall elements are in particular perpendicular to the axis of rotation of the deflection rollers. The wall elements are preferably arranged parallel to one another.The roller block units are preferably connected to one another, wherein the roller block units are in particular welded to one another or fastened to one another, for example by means of screws and / or bolts and / or rivets.According to a preferred embodiment variant of the invention, the roller block has at least one first through-bore, wherein the through-bore extends through the wall elements and, in particular centrally, through the deflection rollers. The longitudinal axis of the through bore preferably corresponds to the axis of rotation of the deflection rollers. In particular, the through bore extends through all wall elements and, in particular centrally, through all deflection rollers.The roller block units are preferably connected to one another, in particular in a releasable manner, by a bolt or a threaded rod being guided through the through-bore and being secured, for example by one or more nuts, against being guided out of the through-bore.It can be provided that each or a part of the wall elements has a projection at their respective first end, wherein a bore is arranged in the projection, wherein the bores have a common longitudinal axis which is arranged parallel to the axis of rotation of the deflection rollers.Furthermore, it can be provided that each or a part of the wall elements has a respective, in particular semicircular, recess at their respective second end, wherein the recesses have a common perpendicular to the center, which is arranged parallel to the axis of rotation of the deflection rollers. The first end of each wall element is situated, in particular, opposite the second end of each wall element. A plurality of bores can be arranged around the recess, in particular in a semicircular arrangement.According to one embodiment variant of the invention, it is provided that between two wall elements of a roller block unit, in each case one intermediate wall is arranged perpendicularly to the wall elements, wherein the intermediate wall separates the region of the projections from the region of the deflection rollers. The intermediate wall can connect the wall elements to one another. For example, the intermediate wall and the wall elements can be welded or screwed or riveted to one another. The intermediate wall preferably has, on at least one of two mutually opposite ends, in particular on its upper end and / or on its lower end, in each case one, in particular U-shaped or semicircular, recess for passing through a traction means, in particular a traction cable.It can be provided that, lying on the inside in each roller block unit opposite the deflection roller, and in particular in the same plane as the deflection roller, a traction means guide for a traction means, in particular a traction cable, is provided.The cable plough system according to the invention comprises a cable plough for introducing at least one line, in particular at least one pipe or cable, into the ground, wherein the cable plough comprises a tongue suitable for engaging into the ground in order to form an earth trough, and a line guide for inserting the line into the earth trough formed or formable by the tongue, wherein the line guide is arranged behind the tongue in a provided direction of travel, and one or more traction units, for example cable winch or a traction vehicle, for pulling the cable plough through the ground, wherein the cable plough is connected to the one or more traction means, for example traction cables.The cable plough system is characterized in that the cable plough system comprises a multiple deflection roller according to one of the preceding claims.It can be provided that the cable flight comprises a chassis, wherein the tongue and / or the line guide are arranged on the chassis and / or are carried by the chassis.Furthermore, it can be provided that the multiple deflection roller is arranged at a front end of the cable plough and / or of the chassis in the intended direction of travel.The multiple deflection roller is preferably arranged on the cable plough in such a way that the axis of rotation of the deflection rollers is arranged perpendicular to the intended direction of travel and / or at least substantially perpendicular to the terrain surface. In particular, the wall elements are thus arranged at least substantially parallel to the terrain surface and / or parallel to the intended direction of travel.The traction means or the traction means can be guided on the one hand around the deflection rollers of the multiple deflection roller and on the other hand be arranged on the traction unit or units.The invention is also explained in more detail below with regard to further features and advantages on the basis of the description of an exemplary embodiment and with reference to the appended schematic drawings. They show FIG. 1 shows an exemplary embodiment of a multiple deflection roller according to the invention in a three-dimensional representation; FIG. 2 shows the multiple deflection roller according to FIG. 1 in a side view; FIG. 3 shows the multiple deflection roller according to FIG. 1 in a plan view.Corresponding parts and components are denoted by the same reference numerals in the figures.FIGS. 1 to 3 each show a multiple deflection roller 10 according to the invention for transmitting a tractive force from one or more traction units, such as cable winch or towing vehicle, to a cable plough. The multiple deflecting roller comprises a roller block 11 with two deflecting rollers 12 arranged parallel next to one another, which are firmly connected to one another and have a common axis of rotation D.The roller block 11 has four wall elements 13. The wall elements 13 are perpendicular to the axis of rotation D of the deflection rollers 12 and are arranged parallel to one another. One deflection roller 12 is arranged between two wall elements 13 and rotatably mounted. The deflecting roller 12 arranged between the two wall elements 13 forms, together with the two associated wall elements 13, a roller block unit 15. The two roller block units 15 are connected to each other.The roller block 11 formed from the two roller block units 15 has a first through-bore 14, wherein the through-bore 14 extends through all wall elements 13 and centrally through the deflection rollers 12. The longitudinal axis L 1 of the through bore 14 corresponds to the axis of rotation D of the deflection rollers 12.The roller block units 15 can be detachably connected to one another by a bolt or a threaded rod being guided through the through bore 14 and being secured, for example by nuts, against being guided out of the through bore 14.Each wall element 13 has a protrusion 17 at its respective first end 20, wherein a bore 16 is arranged in the protrusion 17, wherein the bores 16 of the four wall elements 13 have a common longitudinal axis L 2 which is arranged parallel to the axis of rotation D of the deflection rollers 12.Each wall element 13 has a semicircular cutout 19 at its second end 21 opposite the first end 20, wherein the cutouts 19 of the four wall elements 13 have a common perpendicular to the center L 3 which is arranged parallel to the axis of rotation D of the deflection rollers 12. Around the recess 19, a plurality of bores 22 are arranged in the respective wall element 13 in a semicircular arrangement.Furthermore, it is provided that between two wall elements 13 of a roller block unit 15 in each case one intermediate wall 23 is arranged perpendicular to the wall elements 13, wherein the intermediate wall 23 in the respective roller block unit 15 separates the region of the projections 17 from the region of the deflection rollers 12.The intermediate wall 23 connects the two wall elements 13 of the respective roller block unit 15 to one another. The intermediate wall 23 has at its upper end and at its lower end a respective U-shaped recess 24 for the passage of a pull cable.Furthermore, it is provided that a traction means guide 18 for a traction cable is provided lying on the inside in each roller block unit 15 opposite the deflection roller 12 and in the same plane as the deflection roller 12.List of reference characters10 Multiple deflection roller 11 Roller block 12 Deflection roller 13 Wall element 14 Through bore 15 Roller block unit 16 Bore 17 Projection 18 Traction means guide 19 Recess 20 First end 21 Second end 22 Bore 23 Intermediate wall 24 Recess D Axis of rotation L 1 Longitudinal axis L 2 Longitudinal axis L 3 Perpendicular bisector

Claims

Multiple deflection roller (10) for transmitting a pulling force from one or more pulling units to a cable plough, comprising a roller block (11) having two or more deflection rollers (12) arranged parallel next to one another, wherein the deflection rollers (12) are firmly connected to one another and have a common axis of rotation (D).Multiple deflection roller (10) according to Claim 1, characterized in that the roller block (11) has a plurality of, in particular four, wall elements (13), wherein in each case one deflection roller (12) is arranged between in each case two wall elements (13) and / or is mounted rotatably, wherein in each case one deflection roller (12) arranged between two wall elements (13) forms a roller block unit (15) together with the associated wall elements (13).Multiple deflecting roller (10) according to Claim 2, characterized in that the roller block units (15) are connected to one another, wherein the roller block units (15) are in particular welded to one another or fastened to one another, for example by means of screws and / or bolts and / or rivets.Multiple deflecting roller (10) according to Claim 2 or 3, characterized in that the roller block (11) has at least one first through-bore (14), the through-bore (14) extending through the wall elements (13) and, in particular centrally, through the deflecting rollers (12).Multiple deflecting roller (10) according to Claim 4, characterized in that the roller block units (15) are connected to one another, in particular in a releasable manner, by a bolt or a threaded rod being guided through the through-bore (14) and being secured, for example by one or more nuts, against being guided out of the through-bore (14).Multiple deflecting roller (10) according to one of the preceding claims, characterized in that each or a part of the wall elements (13) has a respective protrusion (17) at its respective first end (20), wherein a bore (16) is arranged in the protrusion (17), wherein the bores (16) have a common longitudinal axis (L2) which is arranged parallel to the axis of rotation (D) of the deflecting rollers (12).Multiple deflection roller (10) according to one of the preceding claims, characterized in that each or a part of the wall elements (13) has a respective, in particular semicircular, recess (19) at its respective second end (21), wherein the recesses (19) have a common mean perpendicular (L3) which is arranged parallel to the axis of rotation (D) of the deflection rollers (12). The first end 20 of each wall element 13 is situated opposite the second end 21 of each wall element 13, in particular.Multiple deflecting roller (10) according to Claim 7, characterized in that a plurality of bores (22) are arranged around the recess (19), in particular in a semicircular arrangement.Multiple deflecting roller (10) according to Claim 8, characterized in that a partition wall (23) is arranged in each case between two wall elements (13) of a roller block unit (15) perpendicularly to the wall elements (13), the partition wall (23) separating the region of the projections (17) from the region of the deflecting rollers (12).Cable plough system, comprising a cable plough for introducing at least one line, in particular at least one pipe or cable, into the ground, wherein the cable plough comprises a blade suitable for engaging into the ground in order to form an earth trough, and a line guide for inserting the line into the earth trough formed or formable by the blade, wherein the line guide is arranged behind the blade in a provided direction of travel, and one or more traction units, for example cable winch or a traction vehicle, for pulling the cable plough through the ground, wherein the cable plough is connected to the traction unit or units by means of one or more traction means, for example traction cables, characterized in that the cable plough system comprises a multiple deflection roller (10) according to one of the preceding claims.Cable plough system according to Claim 10, characterized in that the cable plough comprises a chassis, wherein the tongue and / or the line guide are arranged on the chassis and / or are carried by the chassis.Cable plough system according to Claim 10 or 11, characterized in that the multiple deflecting roller (10) is arranged at a front end of the cable plough in the intended direction of travel.Cable plough system according to one of Claims 10 to 12, characterized in that the multiple deflecting roller (10) is arranged on the cable plough in such a way that the axis of rotation (D) of the deflecting rollers (12) is arranged perpendicular to the intended direction of travel and / or at least substantially perpendicular to the terrain surface.Cable plough system according to one of Claims 10 to 13, characterized in that the traction means or the traction means are guided on the one hand around the deflecting rollers (12) of the multiple deflecting roller (10) and on the other hand are arranged on the traction unit or units.

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