Mounting arrangement for clamping units in tracked chassis of large machines

Abstract

Mounting arrangement (10) for a clamping device with at least one clamping unit (12b) in the side support (12) of a tracked undercarriage of tracked undercarriages in large machines, wherein the clamping unit (12b) is arranged in a side support compartment (12a) in the side support (12) of the tracked undercarriage and a mounting opening (13) is arranged on the outside of the side support (12) in the installation area (11) of the clamping unit (12b), through which the clamping unit (12b) can be removed from the side support compartment (12a) in an installation position transverse to the track direction, characterized in that the mounting opening (13) can be closed with a cover (14) in a dust- and water-repellent manner, wherein the cover (14) has a first profile designed as an undercut on its longitudinal sides (14a), which can be brought into positive engagement with a corresponding second profile on the longitudinal sides (13a) of the mounting opening (13).

Description

[0001] The present invention relates to a mounting arrangement for a clamping device with at least one clamping unit in the side support of a tracked ship of tracked undercarriages in large machines.

[0002] In large machines, such as mining excavators, the undercarriage typically comprises two tracked undercarriages, one on each side. The undercarriage features a robust frame (side supports designed as structural components) in which, besides road wheels and support rollers and a drive sprocket, at least one idler wheel with at least one tensioning device for the track is arranged. The drive power is transmitted to the drive sprocket. The tensioning device maintains the desired tension on the track via the idler wheel, thus ensuring proper movement of the track. In the event of impact loads or if objects become entangled in the undercarriage, the idler wheel yields against the tensioning device.

[0003] Clamping systems are known from the prior art in which the clamping device has one or two parallel clamping cylinders as clamping elements. These cylinders usually engage a clamping fork mounted in the frame, which acts on a sliding block that transmits the relative movements of the guide wheel when force is applied. The clamping unit can be a hydraulic clamping cylinder, a mechanical clamping unit, or a compression spring.

[0004] While these tensioning systems have proven their worth, they suffer from the disadvantage that, for installation during replacement, repair, or maintenance of the tensioning unit, it must be laboriously removed from the corresponding track carriage of the tracked undercarriage. Currently, the tensioning units are pulled out of the track carriage side supports in the installation direction and along the track's direction of travel. Especially with large machines, such tensioning units are very heavy, so replacing them under operating conditions involves considerable logistical effort to ensure that the tensioning unit can be removed safely and quickly from a track carriage side support.

[0005] This leads to a significant increase in time expenditure, which in turn impacts operating hours and thus negatively affects the profitability of such large machines. Downtime should be kept to a minimum to maintain a positive cost-benefit ratio. CA 2 661 427 A1 therefore proposes changing the clamping unit via an upper outer surface of the side support.

[0006] Based on this, one object of the present invention is to provide a mounting arrangement for a clamping device with at least one clamping unit in the tracked chassis of large machines, which can overcome the aforementioned disadvantages. In particular, the mounting arrangement is intended to improve the servicing capabilities of such equipped large machines by service teams and to reduce the risk of accidents during assembly work when handling the clamping units.

[0007] This problem is solved starting from the preamble in conjunction with the characterizing features of claim 1. Advantageous further developments are the subject of dependent claims.

[0008] The assembly arrangement according to the invention is characterized in that a mounting opening is arranged in the side support of the tracked ship on its outer sides in the installation area of ​​the clamping unit, through which the clamping unit can be removed from the side support in its installed position and transversely to the direction of track travel.

[0009] The mounting opening is designed to be sealed with a dust- and water-repellent cover. The cover itself is robust and durable enough to withstand the rigors of daily use. The cover can be made of a correspondingly solid steel plate.

[0010] The cover has a first profile designed as an undercut on its longitudinal sides, which can be positively engaged with a corresponding second profile on the longitudinal sides of the mounting opening.

[0011] According to a further advantageous embodiment, it is provided that guide profiles are assigned to the longitudinal sides of the mounting opening, into which the undercut of the cover plate can be inserted.

[0012] In order to be able to safely remove the tensioning unit from the side support of the tracked vessel, in a further advantageous embodiment it is provided that guide profiles are arranged in the floor of the side support compartment (installation area) for the tensioning unit transversely to the direction of chain travel.

[0013] The guide profiles can be designed as rails into which an extension unit can be inserted. This allows the clamping unit to be brought into operative contact with the extension unit.

[0014] The extension unit can be designed to adapt to the shape and size (circumference) of the clamping unit. For this purpose, the extension unit can be equipped with retaining devices that lock the clamping unit against the extension unit, preventing it from unintentionally falling off.

[0015] If the clamping unit is securely mounted on the extension unit, the clamping unit and extension unit can be pulled out of the installation area through the mounting opening, perpendicular to the chain's direction of travel. This significantly facilitates securing the clamping unit for further removal, as it allows the clamping unit to be pulled out to the side of the side carrier and completely outside the installation area (side carrier compartment).

[0016] In another embodiment, recesses are arranged in the base of the side support compartment transversely to the chain direction. Load-bearing elements, such as those for a forklift or similar equipment, can be inserted into these recesses below the clamping unit. This makes it easier to slide the forklift under the clamping unit and then lift it out of the side support compartment.

[0017] The invention is explained in more detail below with reference to an exemplary embodiment and the accompanying drawings. The figures show: Fig. 1 an isometric representation of the mounting arrangement according to the invention in a side support of a chain-driven ship of a large machine with the side support compartment open and the cover plate moved away before the clamping unit is removed from its installation area; Fig. 2 the isometric representation according to Fig. 1 with clamping unit removed from the side carrier compartment; Fig. 3 an isometric detail view of the assembly arrangement according to the invention with guide profiles embedded in the base of the side support compartment, into which an extension unit can be inserted, wherein the clamping unit is in operative connection with the extension unit and the latter can be pulled out of the side support compartment together with the clamping unit; Fig. 4 an isometric detail view of the assembly arrangement according to the invention with recesses arranged parallel to each other in the base of the side support compartment and transversely to the chain direction, into which load-bearing means can be inserted below the clamping unit in order to then lift it out of a support and out of the side support compartment.

[0018] In the following, identical features are used with the same reference symbols. For clarity, the reference symbols have not been repeated in every figure for every feature shown. As in Fig. As shown in Figure 1, the mounting arrangement 10 essentially consists of an installation area 11, which is arranged in a side support 12 of a tracked vessel of a large machine, in particular a mining excavator (both not shown). The installation area 11 is designed as a side support compartment 12a, which, in its installed position, is provided with a mounting opening 13 on the outside of the side support 12.

[0019] The mounting opening 13 can be closed with a cover 14 designed as a plate (in this embodiment designed as a cover plate). In this embodiment, the cover 14 is associated with an inspection opening 15, which may be provided with a sight glass 24 to allow visual inspection of the machine components arranged in the mounting opening at any time.

[0020] A clamping unit 12b is arranged in compartment 12a of the side support 12. The clamping unit 12b is mounted between a sliding block 22 and a support plate 23.

[0021] As in Fig. As shown in Figure 2, the cover 14 can be removed from the side support 12, thus exposing the mounting opening 13. This avoids the need to open the track chain 16 and remove it from the guide wheel 17 in order to access the stop plate 18 of the side support 12.

[0022] Previously, the stop plate 18 had to be laboriously removed from the end face 19 of the side support 12, and the sliding block 22 with guide wheel 17 had to be removed to gain access to the clamping unit 12b. With the new mounting arrangement, the clamping unit 12b can now be removed laterally from the side support compartment 12a of the side support 12 through the mounting opening 13, as indicated by arrow 21.

[0023] To facilitate the removal of the clamping unit 12b from the side support compartment 12a of the side support 12, as shown in Fig. Figure 3 shows that the clamping unit 12b is securely mounted on an extension unit 25. The extension unit 25 is slidably mounted in or on guide profiles 26 that are formed parallel to each other and are embedded in the base 20 of the side support compartment 12a.

[0024] The extension unit 25 can be inserted into the guide profiles and accommodate the clamping unit 12b. The clamping unit 12b, together with the extension unit 25, can then be pulled out of the side carrier compartment 12a in the installation area 11 of the side carrier 12 through the mounting opening 13, perpendicular to the direction of chain travel.

[0025] This makes it considerably easier to attach the clamping unit 12b for further transport, as the clamping unit 12b can thereby be extended laterally to the side of the side carrier 12 and completely outside the side carrier compartment 12a.

[0026] As in Fig.Figure 4 shows that the base 20 of the side support compartment 12a is provided with recesses 27 arranged parallel to each other transversely to the chain direction, into which mobile load-bearing devices (not shown) can be inserted below the clamping unit 12b in order to then lift the clamping unit off at least one support 28 and out of the side support compartment 12a. Mobile load-bearing devices are understood to include, in particular, a forklift truck or similar mobile equipment. Reference symbol list 10 Assembly arrangement 11 Installation area 12 side carriers 12a Side carrier compartment 12b clamping unit 13 Mounting opening 13a Long side 14 Cover 14a Long side 15 Revision opening 16 track chain 17 Guide wheel 18 Stop plate 19 Front 20 floor 21. Extraction direction perpendicular to the track direction 22 sliding block 23 Support plate 24 sight glass 25 Pull-out unit 26 Leadership profile 27 Exclusion 28 supports

Claims

[1] Mounting arrangement (10) for a clamping device with at least one clamping unit (12b) in the side support (12) of a tracked undercarriage of tracked undercarriages in large machines, wherein the clamping unit (12b) is arranged in a side support compartment (12a) in the side support (12) of the tracked undercarriage and a mounting opening (13) is arranged on the outside of the side support (12) in the installation area (11) of the clamping unit (12b), through which the clamping unit (12b) can be removed from the side support compartment (12a) in an installation position transverse to the track direction, characterized by , that the mounting opening (13) can be closed with a cover (14) in a dust- and water-repellent manner, wherein the cover (14) has a first profile designed as an undercut on its longitudinal sides (14a) which can be brought into a form-fitting operative connection with a corresponding second profile on the longitudinal sides (13a) of the mounting opening (13). [2] Assembly arrangement (10) according to claim 1, characterized by , that guide profiles are assigned to the longitudinal sides (13a) of the mounting opening (13), into which the undercut of the cover (14) can be inserted. [3] Assembly arrangement (10) according to claim 1 or 2, characterized by , that guide profiles (26) are arranged in the floor (20) of the side support compartment (12a) transversely to the track chain direction. [4] Assembly arrangement (10) according to claim 3, characterized by , that at least one extension unit (25) can be inserted into the guide profiles (26), wherein the extension unit (25) can be brought into operative connection with the clamping unit (12b) and the clamping unit (12b) together with the extension unit (25) can be pulled out of the side support compartment (12a) transversely to the track chain direction through the mounting opening (13). [5] Assembly arrangement (10) according to one of the preceding claims, characterized by, that recesses (27) are arranged in the floor (20) of the side support compartment (12a) transverse to the track chain direction, into which mobile load-bearing devices can be inserted below the tensioning unit (12b). [6] Assembly arrangement (10) according to claim 5, characterized by , that the clamping unit (12b) can be lifted off from at least one support (28) via the load-bearing means and removed from the side support compartment (12a) through the mounting opening (13) transversely to the direction of track travel.

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