Mobile work machine with a hydraulic line fastening unit

Abstract

A mobile working machine is proposed with a drive unit for driving at least one drive element and / or for driving a working tool, wherein at least one hydraulic line fastening unit is provided for fastening and / or connecting at least hydraulic lines (13) to a fixing surface of a support frame and / or a tool holding device, 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 the first hydraulic line fastening device (14) comprises at least one first coupling element (24, 25) and the second hydraulic line fastening device (14) comprises a second coupling element (24, 25) for coupling and / or fixing with the first coupling element (24, 25), whereby at least some of the disadvantages of the prior art are avoided.In particular, different diameters can be combined with each other in any way (modularly). This is achieved according to the invention by aligning a coupling and / or mounting direction / adjustment (36) of a coupling unit (23) transversely with respect to the first and / or second contact surface.

Description

[0001] The invention relates to a mobile work machine with a drive unit and with a work machine 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 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, 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, dumpers, wheel or telescopic loaders, telescopic wheel loaders, compact loaders, or the like, which have at least one hydraulic drive unit, usually also have at least one rotary-driven fluid displacement unit, which is usually supplied with mechanical energy by a drive motor. These pumps are 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 volume flow is thus established, which is passed on either by means of a distribution unit, e.g. valve(s), or directly as required to the connected actuator via hydraulic elements or hydraulic lines, in particular hydraulic hoses and / or pipes.

[0003] Except for wheel loaders with large buckets on the lifting arm, modern mobile work machines often feature detachably connectable work tools, e.g., which are held or released using so-called "quick couplers" or "interchangeable plates." In addition to "passive" work tools such as shovels, bale forks, or the like, there are also work tools such as brooms, mulchers, grapple arms, grab buckets, lifting forks, or the like, which accordingly feature an "active" or hydraulically / power-driven tool.

[0004] Hydraulic lines often have to withstand very high working pressures and, in addition, very high pressure peaks or pressure fluctuations, such as several hundred bar, during load changes or similar events. They must be dimensioned accordingly. These very high pressure peaks or pressure fluctuations, especially in curved or bent hydraulic elements or lines, especially hydraulic hoses and / or pipes, generate tensile and compressive forces on the one hand, and transverse forces on / in the hydraulic line on the other. These forces act on the fastening elements or fastenings, which these must absorb and manage.

[0005] The tensile and compressive forces, as well as the transverse forces and stresses on the fastening elements or fastenings, are particularly important for work machines, as work machines often have lifting / working devices that are sometimes designed with multiple joints, such as an articulated arm or grab arm for the work tool. Particularly high forces act on the fastenings here, for example, during the shaking movements of the excavator bucket in clayey material with the grab arm bent.

[0006] In addition, the fastening elements or attachments on work machines must allow the hydraulic lines, especially hydraulic hoses and / or pipes, to move or change slightly both axially and radially, or in terms of diameter. These particular challenges are due to the pressure applied or the rapidly changing pressure profile within the hydraulic line, especially the hydraulic hose.

[0007] If improper fastening elements or fasteners are used on work machines, this can lead to premature failures or leaks, or at least a shortened service life, and in the worst case, even serious property damage and / or personal injury. The fastening elements or fasteners for work machines must be designed to be correspondingly strong or robust, as well as elastic or flexible. Special fastening elements or fasteners for such work machines are already in use. For example, the publication EP 3 887 606 B1 relates to a special fastening for a work machine, in which several identical hydraulic lines are designed as a hydraulic mat.

[0008] However, hydraulic elements and lines, especially hydraulic hoses and / or pipes, often have different diameters and sizes depending on the application. Different diameters and sizes can be present both within or on a single machine and on different machines from a single manufacturer. Consequently, many different fasteners must be manufactured and installed. This is very complex and expensive, especially for manufacturers of different machines.

[0009] In addition to the hydraulic elements or hydraulic lines, especially hydraulic hoses and / or pipes, electrical cables must also be laid, especially along the lifting / working device, which may be multi-articulated, such as the articulated arm or gripper arm for the work tool. Previous systems for attaching hydraulic hoses, hydraulic pipes, cable guides, or the like cannot be combined arbitrarily, especially in terms of diameter. Object and advantages of the invention

[0010] The object of the invention is to propose a work machine in which the disadvantages of the prior art are at least partially improved or avoided, in particular different hydraulic hose and hydraulic pipe diameters and, if necessary, electrical cable diameters can be combined with one another (modularly) as desired.

[0011] This object is achieved, starting from a work 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 subclaims.

[0012] Accordingly, a work machine according to the invention, in particular a wheel loader, telescopic loader, excavator or the like, with a work machine support frame, with a drive unit for driving at least one drive element, e.g. drive wheel / roller and / or crawler track or the like, and / or for driving a work tool, e.g. grab / bucket, fork, vibration element, milling machine, dozer blade or the like, and with an adjustable work machine tool holding device, in particular a lifting device such as a lifting arm, grab arm, telescopic arm, for receiving and / or holding / fixing the work tool, wherein the drive unit comprises at least one drive motor, in particular an internal combustion engine and / or an electric motor and / or a hydraulic motor, is characterized in that at least one hydraulic line fastening unit for fastening and / or connecting at least hydraulic lines, in particular hydraulic hoses and / or hydraulic pipes,at least one first hydraulic line fastening device for a first hydraulic line is provided on a fixing surface of the work machine support frame and / or the work machine tool holding device of the work machine, 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, 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 one first contact surface for arranging on the fixing surface of the work machine support frame and / or the work machine tool holding device,wherein the second hydraulic line fastening device comprises at least one second contact surface for arranging on the fixing surface of the work machine support frame and / or the work 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 between the first hydraulic line fastening device and the second hydraulic line fastening device at least one coupling unit is arranged for coupling and / or fixing the first and second hydraulic line fastening devices, wherein the first hydraulic line fastening device comprises at least one 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 to 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.

[0013] 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 realized. For example, several, possibly identical hydraulic lines can be coupled together or connected or fixed to one another via the first and second hydraulic line fastening devices. Thus, if necessary, countless hydraulic lines such as hydraulic hoses and / or hydraulic pipes and / or hydraulic line fastening devices can be coupled or connected to one another using corresponding coupling units or coupling elements.

[0014] This advantageously also allows for the (modular) combination of different hydraulic hose and pipe diameters, and if necessary, electrical cable diameters. To achieve this, it is sufficient to dimension or design the respective hydraulic line fastening device accordingly so that it can be adapted or adapted to the different diameters of the hydraulic lines.

[0015] This allows both individual fastenings and those that can be coupled together as required, allowing multiple or many fastening units / units to be securely fixed to the work machine or the support frame, lifting arm, or the like, thus holding / attaching the corresponding hydraulic elements or hydraulic lines. For example, a (modular) fastening system can be implemented that is capable of connecting or coupling hydraulic lines of various diameters. The hydraulic line fastening devices or systems can hold or guide hydraulic lines as well as clamp or secure pipe or hose lines. Various variants are possible, particularly for block fastening (attached to one another) and for individual fastening.

[0016] In principle, the respective longitudinal axis of the hydraulic line can also be formed and / or defined or replaced / named alternatively as a vertical or orthogonal direction and / or as a transverse direction in relation to the respective line recess and / or its (clear) cross-section or diameter.

[0017] Advantageously, the coupling unit is designed as a form-locking unit with a form-locking connection between the first and second hydraulic line fastening devices, wherein the first coupling element has at least one projection and / or lug / tongue, and wherein the second coupling element has at least one recess and / or groove / depression for the projection and / or lug / tongue of the first coupling element. This enables particularly stable and / or fixed dimensioning of the coupling or coupling unit according to the invention. Thus, the coupling or coupling elements or coupling units can advantageously be implemented or connected to one another / implemented without the use of tools.

[0018] In an advantageous variant of the invention, the coupling unit and / or the form-locking unit are designed as a locking unit for locking the first hydraulic line fastening device to the second hydraulic line fastening device, and the first coupling element is designed as a locking element with a locking lug for locking with the second coupling element, wherein the second coupling element has at least one locking recess for the locking lug. This improves operational reliability, since the locking mechanism effectively prevents the connection or the form-locking connection and / or the coupling from automatically becoming detached.

[0019] Generally, pre-assembly with / of multiple fasteners or work machine hydraulic line fastening units can also be performed, i.e., assembly or coupling / positive locking / locking prior to fastening or fixing to the work machine. This enables advantageous handling or pre-assembly / assembly during the production of the work machine.

[0020] In principle, the fixation of the work machine hydraulic line fastening unit to / with the work machine can also be improved. For example, with multiple hydraulic lines, fewer fixations or fixing points or fixing elements such as screws, rivets, weld points, or the like are necessary / sufficient. The fixation or the fixing force on / with the work machine can be passed on / directed to neighboring fastenings for the hydraulic lines by the coupling unit or the form fit according to the invention. Accordingly, the assembly effort for multiple hydraulic lines or fixings is reduced.

[0021] Advantageously, a coupling direction / adjustment is provided that faces / aligns transversely or perpendicularly to the longitudinal axis and / or perpendicularly toward the contact surface. This allows for advantageous assembly or coupling. If necessary, an additional work machine hydraulic line fastening unit can also be subsequently coupled / mounted or connected to one or more already installed / fixed work machine hydraulic line fastening units.

[0022] Advantageously, a locking direction / adjustment and / or the locking lug of the locking unit are aligned parallel to the first and / or second longitudinal axis. Thus, locking advantageously occurs in the direction of the longitudinal axis.

[0023] In a particular embodiment of the invention, a locking direction / adjustment and / or the locking lug of the locking unit are aligned perpendicularly with respect to the first and / or second longitudinal axis. This has proven particularly advantageous in initial tests.

[0024] In an advantageous embodiment of the invention, the first hydraulic line fastening device comprises at least a first holding element and / or a second holding 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 holding element and / or a fourth holding element for holding the second hydraulic line in / within the second line recess. This enables a particularly flexible design and / or fastening of the respective hydraulic line. A single or independent fastening of the respective hydraulic line in / within the respective line recess or respective hydraulic line fastening device can also be carried out. This facilitates the assembly or manufacture of the work machine or its hydraulic system.

[0025] Advantageously, the first hydraulic line fastening device and / or the first holding element has at least one first contact surface for the work machine support frame and / or for the work machine tool holding device, and the second hydraulic line fastening device and / or the third holding element has at least one second contact surface for the work machine support frame and / or for the work machine tool holding device. Thus, an advantageous dual function of the first holding element and the third holding element as respective contact elements of the respective hydraulic line fastening device is achieved. This reduces complexity and costs.

[0026] In an advantageous variant of the invention, the first and / or 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 the respective hydraulic line fastening device as a clamping unit. This reduces complexity and costs. Furthermore, it has been found that clamping or jamming the hydraulic lines is particularly advantageous, which is advantageously implemented with the aforementioned measure.

[0027] 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 adjustment of the adjustable element takes place until the respective hydraulic line is jammed. At the same time, advantageous locking on / with different positions can follow, so that different diameters or line recesses for the hydraulic lines can be implemented in an advantageous manner. The invention is accordingly flexible and adaptable with regard to different diameters / sizes of the hydraulic lines or hydraulic hoses or hydraulic pipes or the like. This improves the realizable, possibly modular fastening system according to the invention. Operating forces, in particularespecially tensile / compressive forces in the direction of the longitudinal axis, can be flexibly absorbed.

[0028] In a particular development of the invention, the first and / or second holding element is / are designed as the first and / or second clamping element of the first clamping unit, and the third and / or fourth holding element is / are designed as the third and / or fourth clamping element of the second clamping unit. For example, the first and / or second holding element is / are designed as the first and / or second clamping element of the first clamping unit, and the third and / or fourth holding element is / are designed as the third and / or fourth clamping element of the second clamping unit. This creates an advantageous dual function of the respective holding element as the respective clamping element of the respective clamping unit. This reduces complexity and costs.

[0029] Advantageously, a coupling and / or clamping and / or mounting direction / adjustment and / or the locking direction / adjustment is aligned transversely or orthogonally with respect to the contact surface and / or to a surface of the work machine support frame and / or the work machine tool holder. This allows for advantageous assembly or coupling and / or clamping. If necessary, an additional work machine hydraulic line fastening unit can also be subsequently coupled / mounted or connected / clamped to one or more already installed / fixed work machine hydraulic line fastening units.

[0030] In a particular, alternative development of the invention, the work machine support frame and / or the work machine tool holder is designed as at least one of the clamping elements of the first and / or second clamping unit. This provides an advantageous dual function of the work machine support frame and / or the work machine tool holder as one of the clamping elements of the respective clamping unit. This reduces complexity and costs.

[0031] Advantageously, the first clamping unit has at least one first cross-sectional adjustment device for adjusting / changing a cross-section of the first line recess, and / or the second clamping unit has at least one second cross-sectional adjustment device for adjusting / changing a cross-section of the second line recess. This allows for advantageous adjustment of the extent or size of the respective line recess, optionally at / with different positions of one of the adjustable elements, so that different diameters or line recesses can be advantageously used for the hydraulic lines. Accordingly, the invention is flexible and adaptable with respect to different diameters / sizes of the hydraulic lines, hydraulic hoses, hydraulic pipes, or the like.

[0032] 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 designed for the relative adjustment of the first holding element or the first clamping element in relation to the second holding element and / or second clamping element and / or the second cross-sectional adjustment device is / are designed for the relative adjustment of the third holding element or the third clamping element in relation to the fourth holding element and / or fourth clamping element. In this way, an advantageous double or even triple function of the respective holding element and / or clamping element of the respective clamping unit as a respective cross-sectional adjustment device orEach cross-section adjustment element is designed. This further reduces effort and costs.

[0033] In a particular development of the invention, the first cross-section adjustment device has at least one first locking bar with a plurality of first notches, and / or the second cross-section adjustment device has at least one second locking bar with a plurality of second notches. Thus, the cross-section adjustment and / or clamping can be advantageously achieved by means of the respective locking bar. The locking bar enables particular flexibility or a particularly large adjustment range or clamping range, and thus flexible adaptation to different diameters of the usable hydraulic lines, hoses, or pipes, etc.

[0034] Advantageously, the first holding element and / or the first clamping element comprises at least two first locking bars, in particular aligned parallel to one another, each having a plurality of first grids, and / or the second holding element and / or the second clamping element comprises at least two second locking bars, in particular aligned parallel to one another, each having a plurality of second grids. This advantageously enables loading and adjustability on both sides, or locking and / or clamping. This allows for advantageous fastening, in particular clamping, of the hydraulic line, which enables a long service life.

[0035] 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. It has been shown that this advantageous embodiment is highly advantageous, both with regard to production, in particular injection molding or the like, and with regard to assembly.

[0036] In an advantageous variant of the invention, at least the coupling unit and / or the first and second coupling elements and / or the form-locking unit and / or the locking unit is / are arranged between two of the cross-sectional adjustment devices and / or between two of the U-leg sections and / or between two of the locking strips. This allows for advantageous modularity, expandability, or coupling of several or many / countless work machine hydraulic line fastening units according to the invention.

[0037] For example, at least the first / third holding 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 work machine support frame and / or to the work machine tool holder. This measure enables advantageous fixing of the work machine hydraulic line fastening unit to / with the work machine.

[0038] 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 form-locking elements of the form-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 work machine support frame and / or to the work machine tool holding device at at least one or two ends / sides. Initial investigations have surprisingly shown that not every work machine hydraulic line fastening unit according to the invention or hydraulic line fastening device and / or contact element or the like necessarily requires separate or direct / immediate fixing to / with the work machine, but that some hydraulic line fastening units orDevices can be coupled together according to the invention, and only one fixation at both ends may be sufficient. This significantly reduces the assembly and fixation effort on / with the work machine.

[0039] In a particular development 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 manner. This advantageously allows for the realization of a fastening module, whereby several identical and / or different hydraulic lines and possibly even other machine components such as electrical power and / or signal or electrical lines or the like can be fastened or used / integrated. This allows for particularly high levels of flexibility.

[0040] Advantageously, the respective holding and / or clamping element with the respective contact surface and / or the respective (so-called lower) base element is designed in such a way that it encloses the other or the other holding and / or clamping element (without a corresponding contact surface) or is arranged externally on this other or so-called upper holding and / or clamping element. This advantageously allows this other or so-called upper holding and / or clamping element to be adjusted from "top to bottom" even when the so-called lower base element is coupled. This so-called upper element can also be subsequently inserted or fixed and / or removed or detached if necessary, i.e. in particular after coupling. This significantly improves ease of assembly and also the possibility of, for example, exchanging or replacing the hydraulic line, if necessary in the event of damage and / or maintenance, etc.

[0041] In general, a protective element or protective unit can advantageously be provided to protect and / or stabilize / strengthen the hydraulic line fastening device(s) and / or holding / clamping elements or the like. For example, the protective unit or protective element can be made of metal and / or be designed as a metal / rod element. The protective unit or protective element is advantageously arranged on the side opposite the contact surface. The protective unit or protective element can be arranged as a cover element on top or on the outside. In principle, the protective unit or protective element primarily provides protection against damage or mechanical destruction, which is essential for work machines.

[0042] Advantageously, an anti-twist device is provided to secure the respective hydraulic line fastening device and / or the respective holding / clamping element and / or base element and / or the hydraulic line fastening unit against twisting or pivoting. The anti-twist device can advantageously comprise at least one elevation, in particular a knob, spring, pin or the like, and / or at least one depression, in particular a groove, hole, bore, trench or the like. This ensures that the hydraulic line fasteners are advantageously securely positioned during operation and / or enables an advantageous modular design, wherein the individual hydraulic line fasteners or hydraulic line fastening devices or the like are securely or permanently positioned. This considerably improves operational reliability and / or the linking orCoupling of several hydraulic line fastening devices, in particular in a row / line and / or column arrangement or matrix arrangement. Character description

[0043] An embodiment of the invention is shown in the drawing and is explained in more detail below with reference to the figures. Fig. 1 is a schematic side view of an excavator as a mobile work 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 different sized hydraulic lines, 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-twist 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 an individual, 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 coupling, 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 one row / line and with two rows / lines arranged one above the other and with hydraulic lines of different sizes, Fig. 15 a schematic plan 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 a respective 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 assembling 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 sized inside 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 individual 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 is 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, but with two rows 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 an individual 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.

[0044] In Fig. 1 schematically shows an excavator 1 or a mobile work machine 1 with a mobile undercarriage 2 and an uppercarriage 3 mounted thereon for rotation about a vertical axis V1. An excavator boom 4 is attached to the uppercarriage 3 and can advantageously be rotated about a vertical axis V2 by means of a pivot bracket and about a horizontal axis H1 by means of a joint. This design is typical for excavators of known types.

[0045] The excavator boom 4 is divided into three sections 5, 6, and 7, each of which can rotate relative to the other about horizontal axes H1, H2, and H3. A bucket 8 is attached to the last section 7, which is attached to a tool holder 9 that can rotate about another horizontal axis H4. Various hydraulic cylinders 10, 11, and 12 are provided as drive elements or actuators for the movements of the excavator boom 4.

[0046] To supply energy to the hydraulic cylinders 10, 11, 12 or a hydraulic system, a hydraulic pump (not shown in detail) with a storage / reservoir for hydraulic fluid or oil is usually present in the uppercarriage 3. From these hydraulic components, the hydraulic fluid or oil is fed, 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 firmly connected / fixed to / with the excavator 1 or the boom 4 and / or the uppercarriage 3 or undercarriage 2 using hydraulic line fasteners 14.

[0047] Solely for reasons of clarity, such hydraulic line fastenings 14 are not shown in detail in the overview figure 1. However, the hydraulic line fastenings 14 according to the invention are shown in more detail in the other figures and described in more detail below.

[0048] A first hydraulic line fastening 14 according to the invention is shown in the Fig. 2 to 11. This hydraulic line fastening 14 comprises two holding elements 15, 16, each of which forms a recess 19 or opening / passage 19 for the hydraulic line 13, between which the hydraulic line 13 can be clamped. Accordingly, in this variant of the invention, the holding elements 15, 16 are also designed as clamping elements 15, 15.

[0049] Straight Fig. Figure 3 illustrates the clamping of hydraulic lines 13 with different diameters. The upper holding / clamping element 15 can be positioned in different positions so that the inside diameter or the recess 19 has a different height or cross-section (see Figure 3). Fig. 3a) and Fig. 3b)). For this purpose, the upper holding element 15 or clamping element 15 comprises a locking bar 20 with several notches or teeth. This is operatively connected to a locking lug 21 of the lower holding or clamping element 16.

[0050] Advantageously, two oppositely arranged locking bars 20 or locking lugs 21 are provided, so that an advantageous force distribution or clamping is realized. The assembly of the two holding / clamping elements 15, 16 is also carried out with Fig. 7, wherein a clamping / adjustment direction 22 is shown, 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. 11 additionally illustrates the mounting or clamping of different hydraulic lines on a section 5, 6, 7 of a working or gripping arm 4 of a working machine 1.

[0051] Thus, this first hydraulic line fastening 14 can be used individually as well as in a composite or coupled state as a structural unit or a series of several first hydraulic line fastenings 14 and can be fixed to the work machine 1. For this purpose, each first hydraulic line fastening 14 has an opening / bore 17 for a fixing element or a screw 18. This advantageously enables very flexible use. Usually, with a series of several first hydraulic line fastenings 14, it is sufficient that only the outer hydraulic line fastenings 14 are fixed, ie screwed on, as is the case, for example, in Fig. 2 is shown.

[0052] The coupling or linking of the individual first hydraulic line fasteners 14 is advantageously carried out using a coupling unit 23, which advantageously comprises, for example, a plug-in buckle 24 and a quiver 25. The plug-in buckle 24 advantageously comprises two grids, which, in the installed / locked state, are operatively connected to recesses in the quiver 25 or generate a positive connection.

[0053] The coupling or mounting / connecting of two first hydraulic line fastenings 14, ie in particular holding or clamping elements 16, is compared to the two Fig. 8 and Fig. 9. An assembly / coupling direction 36 is illustrated here. Thus, virtually any number of first hydraulic line fastenings 14 or holding / clamping elements 16 can be coupled / connected to one another and fixed to / with the work machine 1. If, for example, ten or more first hydraulic line fastenings 14 are to be coupled to one another, it would certainly be advantageous to fix them not only 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 holding elements 16 can also be fixed with a screw 18.

[0054] When securing the first hydraulic line fastening 14 to the work machine 1, with a contact surface 26 of the holding or clamping element 16 in contact with or abutting the work machine 1, optional anti-rotation devices 27 or studs 27 are also advantageous. In the fixed state, these interact with recesses or bores in the work machine 1 or the gripper arm 4 or the like. This effectively prevents rotation of the first hydraulic line fastening 14 or the holding elements 16.

[0055] Furthermore, these studs 27 can be of great advantage in a modular or matrix-like coupling of the first hydraulic line fastenings 14. Thus, when stacked one above the other, an improvement in stability and protection against twisting can be advantageously achieved, for example, by these studs 27 of the lower holding or clamping element 16 being in operative connection with corresponding recesses / depressions or bores 28 of the upper holding or clamping element 15. Such a modular or matrix-like arrangement, ie at least two rows, each with several hydraulic line fastenings 14, is shown, for example, in the Fig. 14 and Fig. 15, but for a second and third, but similar hydraulic line fastenings 14. Here, a longitudinal axis 31 of the hydraulic lines 13 is shown as an example.

[0056] The second hydraulic line fastening 14 according to Fig. 12 and Fig. 13 differs essentially from the first hydraulic line fastening 14 only in that it has separate or special end fixing elements 29. Here, the end fixing elements 29 are provided with a quiver 25 on the one hand and with snap-in buckles 24 on the other, so that the end fixing elements 29 are arranged on both sides and can be advantageously coupled to the holding or clamping elements 15, 16.

[0057] Furthermore, the second hydraulic line fasteners 14 do not have a recess 17 or bore 17, as is provided in the first hydraulic line fastener 14. Accordingly, these second hydraulic line fasteners 14 must always be secured or coupled with end fixing elements 29 in accordance with the invention.

[0058] Like the first hydraulic line fastening 14, the second hydraulic line fastening 14 has a lower and an upper holding / clamping element 15, 16, which can generate different cross sections for different thicknesses of hydraulic lines 13 via a locking strip 20 and a locking lug 21. This is shown in Fig. 12 and the upper rows in the Fig. 14 and Fig. 15 clearly.

[0059] The lower rows in the Fig. 14 and Fig. 15 show a fourth hydraulic line fastening 14 according to the Fig. 20 to 27, wherein the holding or clamping of the hydraulic lines 13 is realized on / with the work machine 1 or its surface. This is because the fourth hydraulic line fastenings 14 each have only a single or upper holding / clamping element 15, which comprise differently sized recesses 19 for the hydraulic lines 13.

[0060] This means that the fourth hydraulic line fastening 14 differs essentially from the first two, i.e., the first and second hydraulic line fastening 14, in that the lower holding / clamping element 16 is omitted or unnecessary. This reduces the design effort and uses the work machine for the fastening. Preferably, the first, second, and fourth, as well as the third and fifth hydraulic line fastenings 14 are at least partially compatible or connectable with one another. This is achieved primarily through the identity or compatibility of the quivers 25 and snap-in buckles 24 or the dimensioning of the hydraulic line fastenings 14.

[0061] A third hydraulic line fastening 14 according to the invention is shown in the Fig. 16 to 19. These have recesses 17 arranged laterally or protrudingly on both sides for securing. Thus, each individual hydraulic line fastening 14 can be secured separately to the work machine as needed using a screw 18 or the like. In the example shown, an upper and a lower holding / clamping element 15, 16 are provided, comparable to the aforementioned first and second hydraulic line fastenings 14.

[0062] In the Fig. 20 to 27, the fourth hydraulic line fastening 14 is shown, whereby this can be used instead of 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 provided in place of the buckle 24 according to the Fig. 2 to 19. These form a second coupling unit 23 according to the invention and can be used optionally instead of the first coupling unit 23 according to the Fig. 2 to 19 can be used.

[0063] The Fig. 24 to 27 again show the variant of the fourth hydraulic line fastening 14 with the buckles 24 and the corresponding quiver 25, whereby the assembly variants according to Fig. 25 to 27 has a protective strip 30 at the top. This protective strip 30 can be made of metal, for example, and protects the hydraulic line fastening 14 from mechanical interference or damage. This is particularly advantageous when used on work machines 1.

[0064] 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 locking devices 33. These can also be coupled together according to the invention and include different recesses for different hydraulic lines 13.

[0065] A sixth hydraulic line fastening 14 according to the Fig. 31 to 33 comprises two transversely adjustable holding and / or clamping elements 15, 16, which are connected / coupled to each other by means of a fourth coupling unit 23 according to the invention. However, the end fixing elements 29 again have coupling units 23, which comprise a snap buckle 24 and a corresponding quiver 25.

[0066] By adjusting or adapting along the holding / clamping elements 15, 16 according to this variant, a distance and thus a width of the fastening for different sizes and / or numbers of hydraulic lines 13 can be realized. Fig. Figure 32 shows a possible variant of this mounting. Here, the entire assembly is mounted on a mounting plate 34.

[0067] The aforementioned variants of the invention or their features / specifications can be combined and / or exchanged as required.

[0068] In general, according to the invention, a system of fastening variants can be realized that can be coupled or connected to one another in a modular and / or matrix-like manner. This enables a very flexible and needs-based fastening of a wide variety of hydraulic lines in work machines or the like. Furthermore, other power and / or signal lines, such as electrical cables or the like, can also be fastened or fixed to / with the work machine 1 using the hydraulic line fastenings 14. QUOTES CONTAINED IN THE DESCRIPTION

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

[0000] EP 3 887 606 B1

[0007]

Claims

[1] Mobile work machine (1), in particular a wheel loader, telescopic loader, excavator or the like, with a work machine support frame, with a drive unit for driving at least one drive element, e.g. drive wheel / roller and / or crawler track or the like, and / or for driving a work tool (8), e.g. grab / bucket, fork, vibrating element, milling machine, dozer blade or the like, and with an adjustable work machine tool holding device (4), in particular a lifting device such as a lifting arm, grab arm (4), telescopic arm, for receiving and / or holding / fixing the work tool (8), wherein the drive unit comprises at least one drive motor, in particular an internal combustion engine and / or an electric motor and / or a hydraulic motor, wherein at least one hydraulic line fastening unit for fastening and / or connecting at least hydraulic lines (13), in particular hydraulic hoses and / or hydraulic pipes,on a fixing surface of the work machine support frame and / or the work machine tool holding device (4) of the work machine (1), wherein at least one first hydraulic line fixing device (14) is provided for a first hydraulic line (13), wherein a second hydraulic line fixing device (14) is provided for a second hydraulic line (13), wherein the first hydraulic line fixing device (14) has at least one first line recess (19) for the first hydraulic line (13), wherein the second hydraulic line fixing device (14) has at least one second line recess (19) for the second hydraulic line (13), wherein the first hydraulic line fixing 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) to one another, 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) has a second coupling element (24,25) of the coupling unit (23) for coupling and / or fixing with 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 according to claim 1, characterized by that 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 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] Working machine 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 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 according to one of the preceding claims, characterized bythat 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 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 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 according to one of the preceding claims, characterized by that 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 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 according to one of the preceding claims, characterized bythat 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 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 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 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.

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