Hydraulic line fastening unit for working machines, for fastening or connecting hydraulic lines

Abstract

A hydraulic line fastening unit for a working machine is provided for fastening and / or connecting at least hydraulic lines (13) to a fixing surface of a working machine support frame and / or a working machine tool holder of a working machine, wherein at least one first hydraulic line fastening device (14) is provided for a first hydraulic line, wherein a second hydraulic line fastening device (14) is provided for a second hydraulic line, wherein at least one coupling unit (23) for coupling and / or fixing the first hydraulic line fastening device (14) to the second hydraulic line fastening device (14) is arranged between the first hydraulic line fastening device (14) and the second hydraulic line fastening device (14), wherein the first hydraulic line fastening device (14) has at least one first coupling element (24,25) of the coupling unit (23) and the second hydraulic line fastening device (14) comprising a second coupling element (24, 25) of the coupling unit (23) for coupling and / or fixing with the first coupling element (24, 25), is proposed, wherein at least some of the disadvantages of the prior art are improved or avoided, in particular that different diameters can be combined arbitrarily (modularly). This is achieved according to the invention by aligning a coupling and / or mounting direction / adjustment (36) of the coupling unit (23) transversely with respect to the first and / or second contact surface.

Description

[0001] The invention relates to a hydraulic line fastening unit for a work machine for fastening and / or connecting at least hydraulic lines, in particular hydraulic hoses and / or hydraulic pipes, to a fixing surface of a work machine support frame and / or a work machine tool holding device of a work machine, wherein at least one first hydraulic line fastening device is provided for a first hydraulic line, and wherein a second hydraulic line fastening device is provided for a second hydraulic line. State of the art

[0002] Mobile work machines, such as excavators, dump trucks, wheel loaders, telescopic wheel loaders, compact loaders, or similar equipment, which have at least one hydraulic drive unit, typically also have at least one rotary-driven fluid displacement unit, usually powered by a drive motor. This pump(s) is usually driven by at least one internal combustion engine or an electric motor. Depending on the speed and displacement volume of the pump(s), a flow rate is established, which is then directed either by a distribution unit, e.g., valve(s), or directly, as required, to the connected actuators via hydraulic elements or hydraulic lines, in particular hydraulic hoses and / or pipes.

[0003] Except for, for example, wheel loaders with large buckets on the lifting arm, modern mobile work machines often have detachably connectable work tools, e.g., those using so-called...

[0004] The tools are held and released using "quick couplers" or "interchangeable plates". In addition to "passive" tools such as shovels, bale forks, or the like, there are also tools such as sweepers, mulchers, grapple arms, grab buckets, lifting forks, or the like, which are "active" or hydraulically / energy-powered.

[0005] Hydraulic lines often have to withstand very high operating pressures and, in addition, very high pressure peaks and fluctuations, e.g., several hundred bar, during load changes or similar events. They must therefore be dimensioned accordingly to be robust. These very high pressure peaks and fluctuations, especially in bent or curved hydraulic components or lines, particularly hydraulic hoses and / or pipes, generate tensile and compressive forces as well as lateral forces on / in the hydraulic line, which act on its fasteners and must absorb and overcome these forces.

[0006] The tensile and compressive forces, as well as the lateral forces and stresses, on the fastening elements and fixtures are of particular importance in construction machinery, especially since construction machinery often has lifting / working devices with multiple joints, such as an articulated arm or grab arm for the working tool. Particularly high forces act on the fastenings here, for example, during the vibrating movements of the excavator bucket when working with clayey material and the grab arm is articulated.

[0007] Furthermore, the fastening elements or fixings on working machines must allow the hydraulic lines, especially hydraulic hoses and / or pipes, to move or change slightly both axially and radially or in diameter.

[0008] These particular challenges are in turn due to the pressure exertion or the rapidly changing pressure profile within the hydraulic line, especially the hydraulic hose.

[0009] If unsuitable fasteners are used on machinery, premature failures or leaks can occur, or at least a reduced service life, and in the worst case, even serious damage to property and / or personal injury. Accordingly, fasteners for machinery must be strong and robust, as well as elastic and flexible. Specialized fasteners for such machinery are already in use. For example, the publication EP 3 887 606 B1 describes a special fastening for a machine where several identical hydraulic lines are configured as a hydraulic mat.

[0010] However, hydraulic components and lines, especially hydraulic hoses and / or pipes, often have different diameters and sizes depending on the application. These different diameters and sizes can occur both within a single machine and across different machines from the same manufacturer. Consequently, many different fittings must be manufactured and installed. This is particularly complex and expensive for manufacturers of various machines.

[0011] In addition to hydraulic components and lines, especially hydraulic hoses and / or pipes, electrical cables typically also need to be installed, particularly along the lifting / working device, which may have multiple joints, such as the articulated arm or gripper arm for the working tool. Existing systems for securing hydraulic hoses, pipes, cable guides, or similar components cannot be arbitrarily combined, especially with regard to diameter. Purpose and advantages of the invention

[0012] In contrast, the object of the invention is to propose a hydraulic line fastening unit for fastening and / or connecting at least hydraulic lines, in particular hydraulic hoses and / or hydraulic pipes, to a fixing surface of a machine support frame and / or a machine tool holding device of a machine or a machine, wherein at least partially the disadvantages of the prior art are improved or avoided, in particular different hydraulic hose and hydraulic pipe diameters and, if applicable, electrical cable diameters can be combined (modularly) as desired.

[0013] This problem is solved, starting from a hydraulic line fastening unit for a machine of the type mentioned in the introduction, by the features of claim 1. Advantageous embodiments and further developments of the invention are possible by the measures mentioned in the dependent claims.

[0014] Accordingly, a hydraulic line fastening unit according to the invention for fastening and / or connecting at least hydraulic lines, in particular hydraulic hoses and / or hydraulic pipes, to a fixing surface of a machine support frame and / or a machine tool holding device of a machine is characterized in that at least one first hydraulic line fastening device is provided for a first hydraulic line, wherein a second hydraulic line fastening device is provided for a second hydraulic line, wherein the first hydraulic line fastening device has at least one first line recess for the first hydraulic line, and wherein the second hydraulic line fastening device has at least one second line recess for the second hydraulic line.wherein the first hydraulic line fastening device comprises at least a first contact surface for mounting on the fixing surface of the machine support frame and / or the machine tool holding device, wherein the second hydraulic line fastening device comprises at least a second contact surface for mounting on the fixing surface of the machine support frame and / or the machine tool holding device, wherein in particular the first hydraulic line has a first longitudinal axis, wherein in particular the second hydraulic line has a second longitudinal axis, wherein at least one coupling unit for coupling and / or fixing the first to the second hydraulic line fastening device is arranged between the first hydraulic line fastening device and the second hydraulic line fastening device.wherein the first hydraulic line fastening device comprises at least a first coupling element of the coupling unit and the second hydraulic line fastening device comprises a second coupling element of the coupling unit for coupling and / or fixing with the first coupling element, wherein a coupling and / or mounting direction / adjustment of the coupling unit is oriented transversely with respect to the first and / or second contact surface.

[0015] With the aid of the coupling unit according to the invention, a particularly flexible fastening of hydraulic lines such as hydraulic hoses and / or hydraulic pipes or the like can be achieved. For example, several, possibly identical, hydraulic lines can be coupled together or connected and fixed to each other via the first and second hydraulic line fastening devices. In this way, countless hydraulic lines such as hydraulic hoses and / or hydraulic pipes and / or hydraulic line fastening devices can be coupled or connected to each other with corresponding coupling units or coupling elements, if required.

[0016] This advantageously allows for the combination of various hydraulic hose and pipe diameters, and potentially electrical cable diameters (modularly), as desired. For this purpose, it is sufficient to dimension or design the respective hydraulic line mounting device accordingly, so that it is adapted or adaptable to the different diameters of the hydraulic lines.

[0017] This allows for the secure attachment of individual fixings as well as multiple, connectable fixings / units to the machine, support frame, lifting arm, or similar structure, thus securing the corresponding hydraulic elements or lines. For example, a (modular) fixing system can be implemented that is capable of connecting hydraulic lines of various diameters. These hydraulic line fixing devices or systems can both hold and guide hydraulic lines and clamp or fix pipes or hoses. Various configurations are possible, particularly for block fixings (connected in series) and individual fixings.

[0018] Basically, the respective longitudinal axis of the hydraulic line can also be designed and / or defined or replaced / named as a vertical or orthogonal direction and / or as a transverse direction with respect to the respective line recess and / or its (clear) cross-section or diameter.

[0019] Advantageously, the coupling unit is designed as a positive-locking unit with a positive locking connection between the first and second hydraulic line fastening devices, wherein the first coupling element has at least one projection and / or lug / spring, and wherein the second coupling element has at least one recess and / or groove / recess for the projection and / or lug / spring of the first coupling element. This enables a particularly stable and robust dimensioning of the coupling or coupling unit according to the invention. Thus, the coupling or coupling elements or coupling units can advantageously be implemented and connected / realized without tools.

[0020] In an advantageous embodiment of the invention, the coupling unit and / or the positive locking unit are designed as a locking unit for locking the first hydraulic line fastening device to the second, and the first coupling element is designed as a locking element with a locking lug for locking to the second coupling element, wherein the second coupling element has at least one locking recess for the locking lug. This improves operational reliability, as the locking mechanism effectively prevents the connection or the positive locking and / or the coupling from disengaging automatically.

[0021] Generally, pre-assembly with / of multiple fasteners or hydraulic line mounting units for the machine is also possible, i.e., assembly or coupling / positive locking / latching before attachment or fixing to the machine. This allows for advantageous handling or pre-assembly during the manufacturing of the machine.

[0022] In principle, the fastening of the hydraulic line mounting unit to the machine can also be improved. For example, with multiple hydraulic lines, fewer fixings or fixing points or fixing elements such as screws, rivets, welds, or the like are necessary / sufficient. In this case, the fixing force on the machine can be transferred to adjacent hydraulic line fixings via the coupling unit according to the invention or the positive locking mechanism. Accordingly, the assembly effort is reduced when multiple hydraulic lines or fixings are involved.

[0023] Advantageously, a coupling direction / adjustment is provided that is oriented transversely or perpendicularly to the longitudinal axis and / or perpendicularly towards the contact surface. This allows for advantageous assembly or coupling. If necessary, an additional hydraulic line mounting unit for the machine can subsequently be coupled / mounted to one or more already installed / fixed hydraulic line mounting units for the machine, or connected to each other.

[0024] Advantageously, the detent direction / adjustment and / or the detent lug of the detent unit are aligned parallel to the first and / or second longitudinal axis. This ensures that the detent is engaged advantageously in the direction of the longitudinal axis.

[0025] In a particular embodiment of the invention, a detent direction / adjustment and / or the detent lug of the detent unit are aligned perpendicularly with respect to the first and / or second longitudinal axis. This has proven to be particularly advantageous in initial tests.

[0026] In an advantageous embodiment of the invention, the first hydraulic line fastening device comprises at least a first retaining element and / or a second retaining element for holding the first hydraulic line in / within the first line recess, and the second hydraulic line fastening device comprises at least a third retaining element and / or a fourth retaining element for holding the second hydraulic line in / within the second line recess. This allows for a particularly flexible design and / or fastening of the respective hydraulic line. Furthermore, individual or independent fastening of each hydraulic line in / within the respective line recess or hydraulic line fastening device is possible. This simplifies the assembly or manufacture of the machine or its hydraulic system.

[0027] Advantageously, the first hydraulic line fastening device and / or the first retaining element has at least one first contact surface for the machine's support frame and / or for the machine's tool holder, and the second hydraulic line fastening device and / or the third retaining element has at least one second contact surface for the machine's support frame and / or for the machine's tool holder. This creates an advantageous dual function for the first and third retaining elements as respective contact elements of the hydraulic line fastening devices. This reduces complexity and costs.

[0028] In an advantageous embodiment of the invention, the first and / or the second hydraulic line fastening device is designed as a first and / or second clamping unit for clamping the first or second hydraulic line. This provides an advantageous dual function for each hydraulic line fastening device as a clamping unit. This reduces effort and costs. Furthermore, it has been found that clamping or jamming the hydraulic lines is particularly advantageous, which is advantageously implemented by the aforementioned measure.

[0029] In principle, clamping can be advantageously achieved, for example, by mounting the respective hydraulic line fastening device or by mounting or adjusting the respective holding element or clamping element. This means, for example, that the adjustable element is adjusted until the respective hydraulic line is clamped. At the same time, advantageous locking can be achieved in different positions, so that different diameters or line openings for the hydraulic lines can be implemented. Accordingly, the invention becomes flexible and adaptable with regard to different diameters / sizes of hydraulic lines, hydraulic hoses, hydraulic pipes, or the like. This improves the feasible, possibly modular, fastening system according to the invention. Furthermore, clamping can be used to effectively reduce operating forces, especially...It can flexibly absorb, especially tensile / compressive forces in the direction of the longitudinal axis.

[0030] In a particular embodiment of the invention, the first and / or second holding element is / are configured as the first and / or second clamping element of the first clamping unit, and the third and / or fourth holding element is / are configured as the third and / or fourth clamping element of the second clamping unit. For example, the first and / or second holding element is / are configured as the first and / or second clamping element of the first clamping unit, and the third and / or fourth holding element is / are configured as the third and / or fourth clamping element of the second clamping unit. This provides an advantageous dual function for each holding element as a clamping element of the respective clamping unit. This reduces complexity and costs.

[0031] Advantageously, the coupling and / or clamping and / or mounting direction / adjustment and / or the locking direction / adjustment are aligned transversely or orthogonally with respect to the contact surface and / or a surface of the machine's support frame and / or tool holder. This allows for advantageous mounting, coupling, and / or clamping. If necessary, an additional machine hydraulic line mounting unit can also be subsequently coupled / mounted or connected / clamped to one or more already installed / fixed machine hydraulic line mounting units.

[0032] In a particular, alternative embodiment of the invention, the machine support frame and / or the machine tool holding device is designed as at least one of the clamping elements of the first and / or second clamping unit. This provides an advantageous dual function for the machine support frame and / or the machine tool holding device as one of the clamping elements of the respective clamping unit. This reduces the effort and costs.

[0033] Advantageously, the first clamping unit has at least one first cross-sectional adjustment device for adjusting / changing the cross-section of the first pipe recess, and / or the second clamping unit has at least one second cross-sectional adjustment device for adjusting / changing the cross-section of the second pipe recess. This allows for advantageous adjustment of the extent or size of the respective pipe recess, optionally at / with different positions of one of the adjustable elements, so that different diameters or pipe recesses for the hydraulic lines can be used advantageously. Accordingly, the invention becomes flexible and adaptable with regard to different diameters / sizes of the hydraulic lines, hydraulic hoses, hydraulic pipes, or the like.

[0034] Advantageously, the first cross-sectional adjustment device comprises at least the first and / or second holding element or the first and / or second clamping element, and / or the second cross-sectional adjustment device comprises at least the third and / or fourth holding element or the third and / or fourth clamping element. For example, the first cross-sectional adjustment device is / are configured for the relative adjustment of the first holding element or the first clamping element with respect to the second holding element and / or second clamping element, and / or the second cross-sectional adjustment device is / are configured for the relative adjustment of the third holding element or the third clamping element with respect to the fourth holding element and / or fourth clamping element. In this way, an advantageous dual or even triple function of the respective holding element and / or clamping element of the respective clamping unit is achieved as the respective cross-sectional adjustment device.Each cross-sectional adjustment element is designed. This further reduces effort and costs.

[0035] In a particular embodiment of the invention, the first cross-sectional adjustment device comprises at least one first detent strip with several first detents and / or the second cross-sectional adjustment device comprises at least one second detent strip with several second detents. Thus, the cross-sectional adjustment and / or the clamping can be advantageously achieved by means of the respective detent strip. The detent strip enables particular flexibility and a particularly large adjustment or clamping range, and therefore flexible adaptation to different diameters of the hydraulic lines, hoses, pipes, etc. that can be used.

[0036] Advantageously, the first retaining element and / or the first clamping element comprises at least two first locking strips, in particular parallel to each other, each with several first locking positions, and / or the second retaining element and / or the second clamping element comprises at least two second locking strips, in particular parallel to each other, each with several second locking positions. This advantageously achieves loading and adjustability or locking and / or clamping from both sides. In this way, an advantageous fastening, in particular clamping, of the hydraulic line can be implemented, which enables a long service life.

[0037] For example, the first holding or clamping element with the first contact surface is designed as a U-shaped first base element with two first U-leg sections, and / or the third holding or clamping element with the second contact surface is designed as a U-shaped second base element with two second U-leg sections, wherein the second holding or clamping element is arranged between / within the two first U-leg sections of the first base element, and / or wherein the fourth holding or clamping element is arranged between / within the two second U-leg sections of the second base element. This advantageous embodiment has proven to be highly beneficial, both with regard to manufacturing, in particular injection molding or the like, and with regard to assembly.

[0038] In an advantageous embodiment of the invention, at least the coupling unit and / or the first and second coupling elements and / or the positive locking unit and / or the locking unit are arranged between two of the cross-sectional adjustment devices and / or between two of the U-shaped leg sections and / or between two of the locking strips. This allows for advantageous modularity, expandability, and coupling of multiple or numerous hydraulic line fastening units for machine work according to the invention.

[0039] For example, at least the first / third retaining or clamping element and / or U-shaped, first / second base element with the first / second contact surface has at least one fixing opening or fixing element for fixing to the machine's support frame and / or to the machine's tool holding device. This measure enables advantageous fixing of the machine's hydraulic line fastening unit to / with the machine.

[0040] Advantageously, at least one end / fixing device is provided with one of the coupling elements of the coupling unit and / or with one of the positive locking elements of the positive locking unit with one of the locking elements of the locking unit, so that one or more of the holding or clamping elements and / or U-shaped base elements can be fixed to the machine support frame and / or to the machine tool holding device at at least one or two ends / sides. Surprisingly, initial investigations have shown that not every machine hydraulic line fastening unit according to the invention or hydraulic line fastening device and / or contact element or the like necessarily requires a separate or direct / immediate fixing to / with the machine, but that quite a few hydraulic line fastening units or...The devices can be coupled to one another according to the invention, and only a single fixation at the two end faces or ends is sufficient. This significantly reduces the assembly and fixing effort on / with the machine.

[0041] In a particular embodiment of the invention, several of the holding or clamping elements and / or the U-shaped base elements and / or the end / fixing devices are arranged side by side and / or one above the other in several rows and / or columns and / or in a modular or matrix-like configuration. This advantageously allows for the realization of a fastening module in which several identical and / or different hydraulic lines and, if necessary, even other machine components such as electrical power and / or signal lines or the like can be attached or used / integrated. This enables a particularly high degree of flexibility.

[0042] Advantageously, the respective retaining and / or clamping element with its respective contact surface and / or the respective (so-called lower) base element is designed such that it encases the other retaining and / or clamping element (without a corresponding contact surface) or is arranged on the outside of this other, so-called upper, retaining and / or clamping element. This allows the other, so-called upper, retaining and / or clamping element to be adjusted from "top to bottom" even when the so-called lower base element is coupled. Furthermore, this so-called upper element can be subsequently inserted, fixed, and / or removed or detached as needed, particularly after coupling. This significantly improves ease of assembly and also facilitates, for example, the replacement of the hydraulic line, if necessary in the event of damage and / or for maintenance, etc.

[0043] Generally, a protective element or unit can be advantageously provided to protect and / or stabilize / reinforce the hydraulic line fastening device(s) and / or holding / clamping elements or the like. For example, the protective unit or element can be made of metal and / or designed as a metal / rod element. Advantageously, the protective unit or element is located on the side opposite the contact surface. The protective unit or element can be arranged as a cover element on top or on the outside. Essentially, the protective unit or element primarily provides protection against damage or mechanical destruction, which is of paramount importance in working machinery.

[0044] Advantageously, an anti-rotation device is provided to secure the respective hydraulic line fastening device and / or the respective retaining / clamping element and / or base element and / or the hydraulic line fastening unit against rotation or pivoting. The anti-rotation device can advantageously comprise at least one raised feature, in particular a stud, spring, pin, or the like, and / or at least one recess, in particular a groove, hole, bore, trench, or the like. This ensures that the hydraulic line fastenings are advantageously positioned securely during operation and / or enables an advantageously modular design, whereby the individual hydraulic line fastenings or hydraulic line fastening devices or the like are securely and permanently positioned. This significantly improves operational reliability and / or the interconnection or...Coupling of several hydraulic line fastening devices, especially in a row / column and / or column arrangement or matrix arrangement. Character description

[0045] An embodiment of the invention is shown in the drawing and is explained in more detail below with reference to the figures. Fig. 1 a schematic side view of an excavator as a mobile working machine according to the invention, Fig. 2 a schematic, perspective view of a first hydraulic line fastening unit according to the invention with four first hydraulic line fastening devices, Fig. 3 a schematic sectional view of a single, first hydraulic line fastening device according to Fig. 2 with hydraulic lines of different sizes, Fig. 4 a schematic, perspective view of a single first hydraulic line fastening device according to Fig. 2, Fig. 5 a schematic, perspective view from below of a single first hydraulic line fastening device according to Fig. 2 with two anti-rotation knobs, Fig. 6 a schematic, perspective view of a single, first holding / clamping or base element of the single first hydraulic line fastening device according to Fig. 2, Fig. 7 a schematic, perspective view of the individual, first holding / clamping or base element with a single, second holding or clamping element of the individual first hydraulic line fastening device according to Fig. 6, shortly before assembly, Fig. 8 a schematic, perspective view of two individual, first holding / clamping or base elements according to Fig. 6, shortly before a coupling process, Fig. 9 a schematic, perspective view of the two individual, first holding / clamping or base elements according to Fig. 8 in the coupled or locked state, Fig. 10 a schematic, perspective view of a first assembly example of individual first hydraulic line fastening devices according to Fig. 4, shortly before assembling the individual, first holding / clamping or base elements with the individual, second holding or clamping elements, Fig. 11 a schematic, perspective view of the first assembly example of the individual first hydraulic line fastening devices according to Fig. 10 in the coupled or locked state, Fig. 12 a schematic, perspective view of a second hydraulic line fastening unit according to the invention with three second hydraulic line fastening devices and two first, end-side fixing elements, Fig. 13 a schematic, perspective view of a second assembly example of the second hydraulic line fastening unit according to Fig. 12 in the coupled or locked state, Fig. 14 a schematic, perspective view of two, second hydraulic line fastening units according to Fig. 12 in a matrix-like arrangement / unit with four second hydraulic line fastening devices in a row and with two rows arranged one above the other, and with hydraulic lines of different sizes, Fig. 15 a schematic top view of Fig. 14, Fig. 16 a schematic, perspective view of a third hydraulic line fastening unit according to the invention with four third hydraulic line fastening devices and each with a lateral fixing device, Fig. 17 a schematic view of third holding and / or clamping or third base elements of the third hydraulic line fastening unit according to Fig. 16, Fig. 18 a schematic, perspective view of a single third hydraulic line fastening device according to Fig. 17, Fig. 19 a schematic, perspective view of a third assembly example of the third hydraulic line fastening device according to Fig. 18, shortly before the assembly of the individual, third holding / clamping or base elements with the individual, third holding or clamping elements, Fig. 20 a schematic, perspective view of a fourth hydraulic line fastening unit according to the invention with four fourth hydraulic line fastening devices without lower base elements, but with different clear diameters for hydraulic lines and with two second, end-side fixing elements, Fig. 21 a schematic, perspective view of a single second, end-side fixing element and a single fourth hydraulic line fastening device of the fourth hydraulic line fastening unit according to Fig. 20, Fig. 22 a schematic, perspective view of another single second, end-side fixing element of the fourth hydraulic line fastening unit according to Fig. 20, Fig. 23 a schematic, perspective view of a fourth assembly example of the fourth hydraulic line fastening unit according to Fig. 20 in the coupled or locked state, Fig. 24 a schematic side view of a fifth hydraulic line fastening unit according to the invention, Fig. 25 a schematic, perspective view of a fifth assembly example of the fifth hydraulic line fastening unit according to Fig. 24 with an upper protective strip and different hydraulic lines, Fig. 26 a schematic, perspective view of a sixth assembly example of the fifth hydraulic line fastening unit according to Fig. 24, however with two rows / units and a common upper protective strip and different hydraulic lines, Fig. 27 a schematic side view of Fig. 26, Fig. 28 a schematic, perspective view of a sixth hydraulic line fastening unit according to the invention with four sixth hydraulic line fastening devices without lower base elements, but with lateral locking and with two third, end-side fixing elements, Fig. 29 a schematic, perspective view of a single sixth hydraulic line fastening device of the sixth hydraulic line fastening unit according to Fig. 28, Fig. 30 a schematic, perspective view of a single third, end-side fixing element of the sixth hydraulic line fastening unit according to Fig. 28, Fig. 31 a schematic, perspective view of a seventh hydraulic line fastening unit according to the invention with two seventh and interlocking hydraulic line fastening devices and with two fourth, end-side fixing elements, Fig. 32 a schematic, perspective view of a seventh assembly example of the seventh hydraulic line fastening unit according to Fig. 31 and Fig. 33 a schematic side view of the Fig. 31.

[0046] In Fig. Figure 1 is a schematic representation of an excavator 1 or a mobile work machine 1 with a movable undercarriage 2 and a superstructure 3 rotatably mounted thereon about a vertical axis V1. An excavator boom 4 is attached to the superstructure 3, which is advantageously rotatable about a vertical axis V2 by means of a pivoting console and about a horizontal axis H1 by means of a joint. This design is typical for excavators of known construction.

[0047] The excavator boom 4 is divided into three sections 5, 6, 7, which can rotate relative to each other about horizontal axes H1, H2, H3. A bucket 8 is attached to the last section 7 on a tool holder 9, which can rotate about a further horizontal axis H4. Various hydraulic cylinders 10, 11, 12 are provided as drive elements or actuators for the movements of the excavator boom 4.

[0048] To supply energy to the hydraulic cylinders 10, 11, 12, or to a hydraulic system, a hydraulic pump (not shown) with an accumulator / reservoir for hydraulic fluid or oil is typically located in the superstructure 3. From these hydraulic components, the hydraulic fluid or oil is conveyed, among other things, to the boom 4 or the hydraulic cylinders 10, 11, 12 via various hydraulic lines 13, e.g., hydraulic pipes 13 and / or hydraulic hoses 13, etc. These hydraulic lines 13, e.g., hydraulic pipes 13 and / or hydraulic hoses 13, etc., must be securely connected / fixed to the excavator 1, the boom 4, and / or the superstructure 3 or undercarriage 2 using hydraulic line clamps 14.

[0049] For the sake of clarity, such hydraulic line clamps 14 are not shown in detail in overview figure 1. However, the hydraulic line clamps 14 according to the invention are shown in more detail in the subsequent figures and described in more detail below.

[0050] A first hydraulic line fastening 14 according to the invention is in the Fig. Figures 2 to 11 are shown schematically. This hydraulic line fastening 14 comprises two retaining elements 15, 16, each forming a recess 19 or opening / passage 19 for the hydraulic line 13, between which the hydraulic line 13 can be clamped. Accordingly, in this embodiment of the invention, the retaining elements 15, 16 are simultaneously designed as clamping elements 15, 15.

[0051] Straight Fig. Figure 3 illustrates the clamping of hydraulic lines 13 with different diameters. The upper retaining / clamping element 15 can thus be positioned in different locations, so that the clear diameter or the recess 19 has a different height or cross-sectional area (see Figure 3). Fig. 3a) and Fig. 3b)). For this purpose, the upper retaining element 15 or clamping element 15 comprises a locking strip 20 with several notches or teeth. This is operatively connected to a locking lug 21 of the lower retaining or clamping element 16.

[0052] Advantageously, two opposing locking strips 20 or locking lugs 21 are provided, so that an advantageous force distribution or clamping is achieved. The assembly of the two holding / clamping elements 15, 16 is also facilitated by Fig. Figure 7 clearly shows a clamping / adjustment direction 22 along which the upper holding / clamping element 15 is adjusted or mounted relative to the lower holding / clamping element 16. A comparison of the Fig. 10 and Fig. Figure 11 further illustrates the assembly or clamping of different hydraulic lines on a section 5, 6, 7 of a working or gripping arm 4 of a working machine 1.

[0053] This first hydraulic line clamp 14 can be used individually or in combination or coupled together as a unit, or as a series of several first hydraulic line clamps 14, and fixed to the working machine 1. For this purpose, each first hydraulic line clamp 14 has an opening / bore 17 for a fixing element or screw 18. This advantageously allows for very flexible use. Typically, when using a series of several first hydraulic line clamps 14, it is sufficient to fix only the outer hydraulic line clamps 14, i.e., to screw them on, as is done, for example, in Fig. 2 is shown.

[0054] The coupling or linking of the individual first hydraulic line fastenings 14 is advantageously effected by a coupling unit 23, which advantageously comprises, for example, a snap-fit ​​buckle 24 and a socket 25. The snap-fit ​​buckle 24 advantageously comprises two locking tabs which, in the installed / locked state, engage with recesses in the socket 25, thus generating a positive fit.

[0055] The coupling or assembly / connection of two first hydraulic line fixings 14, i.e. in particular holding or clamping elements 16, is compared with the two Fig. 8 and Fig. Figure 9 illustrates this. A mounting / coupling direction 36 is shown here. This allows virtually any number of first hydraulic line fixings 14 or retaining / clamping elements 16 to be coupled / connected together and fixed to / with the machine 1. If, for example, ten or more first hydraulic line fixings 14 are to be coupled together, it would certainly be advantageous not only to fix them at the outer ends, but also at one or more points within the long row using screws 18 or the like. If necessary, each of the retaining elements 16 can also be fixed with a screw 18.

[0056] When fixing the first hydraulic line clamps 14 to the machine 1, with a contact surface 26 of the retaining or clamping element 16 in contact with or resting against the machine 1, anti-rotation devices 27 or knobs 27 are optionally advantageous. In the fixed state, these interact with recesses or bores in the machine 1 or the gripper arm 4, or the like. This effectively prevents the first hydraulic line clamp 14 or the retaining elements 16 from rotating.

[0057] Furthermore, these studs 27 can be particularly advantageous in a modular or matrix-like coupling of the first hydraulic line fixings 14. For example, when stacking, improved stability and protection against twisting can be advantageously achieved by having these studs 27 of the lower retaining or clamping element 16 engage with corresponding recesses / recesses or bores 28 of the upper retaining or clamping element 15. Such a modular or matrix-like arrangement, i.e., at least two rows with several hydraulic line fixings 14 each, is used, for example, in the Fig. 14 and Fig. Figure 15 shows, however, for a second and third, but similar hydraulic line fixings 14. Here, a longitudinal axis 31 of the hydraulic lines 13 is shown as an example.

[0058] The second hydraulic line fastening 14 according to Fig. 12 and Fig. The first hydraulic line fastening 13 differs essentially only in that it has separate or special end fixing elements 29. Here, end fixing elements 29 are provided with a quiver 25 on one side and with snap-on buckles 24 on the other, so that the end fixing elements 29 are arranged on both sides and can be advantageously coupled with the holding or clamping elements 15, 16.

[0059] Furthermore, the second hydraulic line fixings 14 do not have a recess 17 or bore 17, as is provided for the first hydraulic line fixing 14. Therefore, these second hydraulic line fixings 14 must always be fixed with end fixing elements 29 or coupled in accordance with the invention.

[0060] Like the first hydraulic line clamp 14, the second hydraulic line clamps 14 have a lower and an upper retaining / clamping element 15, 16 which can generate different cross-sections for hydraulic lines 13 of varying thicknesses via a locking strip 20 and a locking lug 21. This is shown in Fig. 12 and the respective upper rows in the Fig. 14 and Fig. 15 clearly.

[0061] The lower rows in the Fig. 14 and Fig. Figure 15 shows a fourth hydraulic line fastening 14 according to the Fig. 20 to 27, whereby the holding or clamping of the hydraulic lines 13 on / with the working machine 1 or its surface is realized. This is because the fourth hydraulic line fastening 14 each have only a single or upper holding / clamping element 15, which includes differently sized recesses 19 for the hydraulic lines 13.

[0062] This means that the fourth hydraulic line clamp 14 differs essentially from the first two, i.e., the first and second hydraulic line clamps 14, in that the lower retaining / clamping element 16 is omitted or unnecessary. This reduces the design complexity and utilizes the machine for clamping. Preferably, the first, second, and fourth, as well as the third and fifth hydraulic line clamps 14, are at least partially compatible or connectable with each other. This is achieved primarily through the identity or compatibility of the ferrules 25 and snap-in buckles 24, or the dimensions of the hydraulic line clamps 14.

[0063] A third hydraulic line fastening 14 according to the invention is located in the Fig. Figures 16 to 19 illustrate this. Each of these features laterally arranged or projecting recesses 17 on both sides for fixing. Thus, each individual hydraulic line fastening 14 can be separately fixed to the machine as needed using a screw 18 or the like. In the illustrated example, an upper and a lower retaining / clamping element 15, 16 are again provided, comparable to the aforementioned first and second hydraulic line fastenings 14.

[0064] In the Fig. The fourth hydraulic line fastening 14 is listed in figures 20 to 27, replacing the quiver 25, for example, according to the Fig. 2 to 19 has a second quiver 25 with a receptacle for a locking lug 24. This locking lug 24 is in place of the snap buckle 24 according to the Fig. 2 to 19 are present. These form a second coupling unit 23 according to the invention and can optionally or selectively replace the first coupling unit 23 according to the Fig. 2 to 19 can be used.

[0065] The Fig. Figures 24 to 27 again show the variant of the fourth hydraulic line fastening 14 with the snap-in buckles 24 and the corresponding quiver 25, the assembly variants being shown according to Fig. 25 to 27 has a protective strip 30 at the top. This protective strip 30 can, for example, be made of metal and protect the hydraulic line mounting 14 from mechanical impairment or damage. This is particularly advantageous when used with work machines 1.

[0066] In the variants according to Fig. 28 to 30, a fifth hydraulic line fastening 14 is used, which has laterally arranged third coupling units 23 and includes detents 33. According to the invention, these can also be coupled together and include different recesses for different hydraulic lines 13.

[0067] A sixth hydraulic line fastening 14 according to the Fig. 31 to 33 comprises two retaining and / or clamping elements 15, 16 adjustable transversely to each other, which are connected / coupled to each other by means of a fourth coupling unit 23 according to the invention. End fixing elements 29, however, in turn have coupling units 23 comprising a snap buckle 24 and a corresponding quiver 25.

[0068] By adjusting or adapting the retaining / clamping elements 15, 16 along this variant, a distance and thus a width of the fastening can be achieved for different sized and / or numerous hydraulic lines 13. Fig. Figure 32 shows one possible variant of this fastening. Here, the entire assembly is built / arranged on a mounting plate 34.

[0069] The aforementioned variants of the invention or their features / specifications can be combined and / or exchanged as needed.

[0070] In general, a system of fastening options can be realized according to the invention, which can be coupled or connected to each other in a modular and / or matrix-like manner. This enables a very flexible and needs-based fastening of a wide variety of hydraulic lines on machinery or the like. In addition, other energy and / or signal lines, such as electrical cables or the like, can also be fastened to or fixed to the machinery 1 using the hydraulic line fasteners 14. QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] EP 3 887 606 B1

[0009]

Claims

[1] A work machine hydraulic line fastening unit for fastening and / or connecting at least hydraulic lines (13), in particular hydraulic hoses and / or hydraulic pipes, to a fixing surface of a work machine support frame and / or a work machine tool holding device (4) of a work machine (1), wherein at least one first hydraulic line fastening device (14) is provided for a first hydraulic line (13), wherein a second hydraulic line fastening device (14) is provided for a second hydraulic line (13), wherein the first hydraulic line fastening device (14) has at least one first line recess (19) for the first hydraulic line (13), wherein the second hydraulic line fastening device (14) has at least one second line recess (19) for the second hydraulic line (13),wherein the first hydraulic line fastening device (14) comprises at least one first contact surface (26) for arranging on the fixing surface of the work machine support frame and / or the work machine tool holding device (4), wherein the second hydraulic line fastening device (14) comprises at least one second contact surface (26) for arranging on the fixing surface of the work machine support frame and / or the work machine tool holding device (4), wherein in particular the first hydraulic line (13) has a first longitudinal axis (31), wherein in particular the second hydraulic line (13) has a second longitudinal axis (31), wherein at least between the first hydraulic line fastening device (14) and the second hydraulic line fastening device (14) at least one coupling unit (23) is arranged for coupling and / or fixing the first and second hydraulic line fastening devices (14) together,wherein the first hydraulic line fastening device (14) comprises at least one first coupling element (24, 25) of the coupling unit (23) and the second hydraulic line fastening device (14) comprises a second coupling element (24, 25) of the coupling unit (23) for coupling and / or fixing to the first coupling element (24, 25), wherein a coupling and / or mounting direction / adjustment (36) of the coupling unit (23) is oriented transversely with respect to the first and / or second contact surface (26). [2] Working machine hydraulic line fastening unit according to claim 1, characterized bythat the coupling unit (23) is designed as a form-fitting unit (23) with a form-fitting connection of the first with the second hydraulic line fastening device (14), wherein the first coupling element (24, 25) has at least one projection (21) and / or nose / tongue and wherein the second coupling element (24, 25) has at least one recess (25) and / or groove / depression for the projection and / or nose / tongue of the first coupling element (24, 25). [3] Working machine hydraulic line fastening unit according to one of the preceding claims, characterized bythat the coupling unit (23) and / or the form-fitting unit (23) are designed as a locking unit for locking the first hydraulic line fastening device (14) with the second hydraulic line fastening device (14) and the first coupling element (24, 25) is designed as a locking element having a locking lug for locking with the second coupling element (24, 25), wherein the second coupling element (24, 25) has at least one locking recess for the locking lug. [4] Work machine hydraulic line fastening unit according to one of the preceding claims, characterized bythat the first hydraulic line fastening device (14) comprises at least a first holding element (15, 16) and / or a second holding element (15, 16) for holding the first hydraulic line (13) in / within the first line recess (19) and that the second hydraulic line fastening device (14) comprises at least a third holding element (15, 16) and / or a fourth holding element (15, 16) for holding the second hydraulic line (13) in / within the second line recess (19). [5] Working machine hydraulic line fastening unit according to one of the preceding claims, characterized by that the first hydraulic line fastening device (14) is designed as a first clamping unit (14) for clamping the first hydraulic line (13) and / or that the second hydraulic line fastening device (14) is designed as a second clamping unit (14) for clamping the second hydraulic line (13). [6] Working machine hydraulic line fastening unit according to one of the preceding claims, characterized by that the first holding element (15, 16) is designed as a first clamping element (15, 16) and the second holding element (15, 16) as a second clamping element (15, 16) of the first clamping unit (23) and / or that the third holding element (15, 16) is designed as a third clamping element (15, 16) and (15, 16) of the second clamping unit (23). [7] Working machine hydraulic line fastening unit according to one of the preceding claims, characterized by that the work machine support frame and / or the work machine tool holding device (4) is designed as at least one of the clamping elements (16) of the first and / or second clamping unit (23). [8] Working machine hydraulic line fastening unit according to one of the preceding claims, characterized bythat the first clamping unit (23) has at least one first cross-sectional adjustment device (20, 21) for adjusting / changing a cross-section of the first line recess (19) and / or the second clamping unit (23) has at least one second cross-sectional adjustment device (20, 21) for adjusting / changing a cross-section of the second line recess (19). [9] Working machine hydraulic line fastening unit according to one of the preceding claims, characterized bythat the first cross-sectional adjustment device (20, 21) is designed for the relative adjustment of the first holding element (15, 16) or the first clamping element (15, 16) with respect to the second holding element (15, 16) and / or second clamping element (15, 16) and / or that the second cross-sectional adjustment device (20, 21) is designed for the relative adjustment of the third holding element (15, 16) or the third clamping element (15, 16) with respect to the fourth holding element (15, 16) and / or fourth clamping element (15, 16). [10] Working machine hydraulic line fastening unit according to one of the preceding claims, characterized by that the first cross-sectional adjustment device (20, 21) has at least one first locking bar (20) with a plurality of first grids and / or that the second cross-sectional adjustment device (20, 21) has at least one second locking bar (20) with a plurality of second grids. [11] Working machine hydraulic line fastening unit according to one of the preceding claims, characterized by that the first holding or clamping element (15, 16) with the first contact surface (26) is designed as a U-shaped, first base element (16) with two first U-leg sections and / or the third holding or clamping element (15, 16) with the second contact surface (26) is designed as a U-shaped, second base element (16) with two second U-leg sections, wherein the second holding or clamping element (15, 16) is arranged between / within the two first U-leg sections of the first base element (16) and / or wherein the fourth holding or clamping element (15, 16) is arranged between / within the two second U-leg sections of the second base element (16). [12] Working machine hydraulic line fastening unit according to one of the preceding claims, characterized bythat at least the first / third holding or clamping element (15, 16) and / or U-shaped, first / second base element (16) with the first / second contact surface (26) has at least one fixing opening (17) or a fixing element (18) for fixing to the work machine support frame and / or to the work machine tool holding device (4). [13] Working machine hydraulic line fastening unit according to one of the preceding claims, characterized by that at least one end / fixing device (18, 29) is provided with one of the coupling elements (24, 25) of the coupling unit (23) and / or with one of the form-locking elements (24, 25) of the form-locking unit (23) and / or with one of the locking elements of the locking unit (23), so that one or more of the holding or clamping elements (15, 16) and / or U-shaped base elements (16) can be fixed to the work machine support frame and / or to the work machine tool holding device (4) at at least one or two ends / sides. [14] Working machine hydraulic line fastening unit according to one of the preceding claims, characterized by that several of the holding or clamping elements (15, 16) and / or the U-shaped base elements (16) and / or the end / fixing devices (18, 29) are arranged next to one another and / or one above the other in a matrix-like manner in several rows and / or columns. [15] Work machine with a work machine hydraulic line fastening unit according to one of the preceding claims.

Images