Device for discharging thick material and construction site power distribution box

Abstract

Device (200) for discharging thick material, comprising: - at least two independent electrical machine connections (201, 202, 203, 204) designed for connecting at least two separate cables (101, 102, 103, 104) of a connection system (100), - wherein the connection system (100) is provided for connecting the device (200) for discharging thick material to a multi-phase electrical supply network (300) and comprises: - a first cable (101) and - at least one second cable (102, 103, 104) designed independently of the first cable (101), - wherein the first cable (101) is intended to electrically connect the device (200) for discharging thick material to a first phase (L1) of the multi-phase electrical supply network (300) and not to electrically connect it to a second phase (L2) of the multi-phase electrical supply network (300), and - wherein the second cable (102) is intended to electrically connect the device (200) for discharging thick material to the second phase (L2) of the multi-phase electrical supply network (300) independently of the first cable (101) and not to the first phase (L1) of the multi-phase electrical supply network (300).

Description

[0001] The invention is based on the objective of providing a device for discharging thick material and a construction site power distributor that are as easy to handle as possible.

[0002] The device for discharging thick material has at least two independent electrical machine connections designed for connecting at least two separate cables of a connection system in order to electrically connect the device for discharging thick material to, for example, a three-phase AC power network.

[0003] The connection system is used to connect the device for discharging thick material, for example a truck-mounted concrete pump, to a multi-phase, for example 3-phase, electrical supply network.

[0004] The connection system comprises a first cable and at least one second cable, which is independent of the first cable. The first cable is designed to electrically connect the device for discharging thick material, in particular exclusively, to the first phase of the multi-phase electrical supply network, but not to the second and / or third phase of the multi-phase electrical supply network. The second cable is designed to electrically connect the device for discharging thick material, independently of the first cable, to the second phase of the multi-phase electrical supply network, but not to the first and / or third phase of the multi-phase electrical supply network.

[0005] The first cable and the second cable are specifically designed to electrically connect the device for discharging thick material directly to the corresponding phases of the multi-phase electrical supply network without the need for additional cables or conductors.

[0006] In one embodiment, the connection system has a third cable, wherein the third cable is provided to electrically connect the device for discharging thick material, in particular exclusively, to a third phase of the multi-phase electrical supply network.

[0007] In one embodiment, the connection system has a PE connection cable that is independently designed from the first cable, the second cable and the third cable, and which is intended to electrically connect the device for discharging thick material to protective earth.

[0008] In one embodiment, each cable is a single-core cable.

[0009] In one embodiment, the first cable is designed to electrically connect the device for discharging thick material to a third phase of the multi-phase electrical supply network in addition to the first phase, and the second cable is designed to electrically connect the device for discharging thick material to protective earth in addition to the second phase. In other words, the first cable carries, for example, L1 and L3 (or L2), and the second cable carries L2 (or L3) and PE.

[0010] In one embodiment, each cable is a multi-core cable, in particular a two-core cable.

[0011] In one embodiment, each cable has at least one connector. These connectors can be designed to lock mechanically, for example.

[0012] In one embodiment, each cable has a minimum length of between 5 and 20 meters.

[0013] In one embodiment, the at least two independent electrical machine connections each have a machine socket.

[0014] In one embodiment, the device for discharging thick material is a (vehicle) concrete pump.

[0015] In one embodiment, the device for discharging thick material has an electric motor which can be supplied via the at least two independent electrical machine connections from a multi-phase electrical supply network.

[0016] In one embodiment, the device for discharging thick material further comprises a test device designed to verify whether the at least two independent electrical machine connections are correctly connected to corresponding potentials or terminals, for example, a phase, protective earth, or neutral conductor, of the multi-phase electrical supply network. If the at least two independent electrical machine connections are not correctly connected to the corresponding potentials or terminals of the multi-phase electrical supply network, normal operation of the device for discharging thick material can be prevented.

[0017] The construction site power distribution box has: at least two independent electrical construction site power distribution box connections, which are designed for connecting at least two separate cables of a connection system described above.

[0018] In one embodiment, the at least two independent electrical construction site power distribution connections each have a construction site power distribution socket.

[0019] Electrically driven devices for discharging thick materials draw a significant portion of their power from the electrical grid and are therefore connected to it via a cable. Because these machines frequently change their location, they cannot be permanently connected to the grid but must be connected using detachable (plug-in) connections. This requires laying the appropriate cable first.

[0020] Typical system performance requires high currents, which, combined with the long cable lengths in mobile work environments, necessitate large to very large cable cross-sections. Standard multi-core cables and connectors are difficult to handle by hand, and the insertion force is very high even when new and without typical construction site contamination. At very high electrical loads, conventional cables can only be laid and connected with the aid of special tools.

[0021] According to the invention, a conventional single cable, by means of which the device for discharging thick material is conventionally connected to the electrical supply network, is divided into at least two different or separate and pluggable cables. In a maximum expansion stage, exactly one line or cable is assigned to each necessary potential or phase.

[0022] Handling individual conductors or cables is significantly simplified due to a weight reduction of four to five times per cable. This allows for the use of very large cable cross-sections, resulting in higher system performance. The insertion forces required for individual cables are considerably reduced compared to conventional cables, enabling insertion without tools or automated systems. Furthermore, the individual cables are easier to stow on the material discharge device. Single cables are also significantly less stiff than cables with multiple conductors.

[0023] The invention is described in detail below with reference to the drawings. These show: Fig. 1. Schematic representation of a connection system for connecting a device for discharging thick material to a multi-phase electrical supply network.

[0024] Fig.Figure 1 shows a highly schematic connection system 100 for connecting a device for discharging thick material in the form of a truck-mounted concrete pump 200 to a multi-phase electrical supply network 300.

[0025] The connection system 100 comprises: a first cable 101, a second cable 102 formed independently of the first cable 101, a third cable 103 formed independently of the first cable 101 and the second cable 102, and a PE connection cable 104 formed independently of the first cable 101, the second cable 102, and the third cable 103.

[0026] The first cable 101 is intended to electrically connect the device for discharging thick material 200 to a first phase L1 of the multi-phase electrical supply network 300. The second cable 102 is intended to electrically connect the device for discharging thick material 200 to a second phase L2 of the multi-phase electrical supply network 300. The third cable 103 is intended to electrically connect the device for discharging thick material 200 to the third phase L3 of the multi-phase electrical supply network 300. The PE connection cable 104 is intended to electrically connect the device for discharging thick material 200 to protective earth PE.

[0027] Cables 101, 102, 103, and 104 are each single-core. Alternatively, instead of four cables, only two two-core cables can be used, with one of these cables carrying, for example, L1 and L2, and the other carrying L3 and PE.

[0028] Cables 101, 102, 103 and 104 each have a connector 105 or 106 at their ends.

[0029] The device for discharging thick material 200 has independent electrical machine connections 201, 202, 203 and 204, which are designed or provided for connecting cables 101, 102, 103 and 104 respectively. The machine connections 201, 202, 203 and 204 each have a machine socket 205.

[0030] The device for discharging thick material 200 is a (vehicle) concrete pump, which has at least one electric motor 206, which can be supplied or is supplied via the working machine connections 201, 202, 203 and 204 from the multi-phase electrical supply network 300.

[0031] The device for discharging thick material 200 further includes a test device 207 which is designed to check whether the machine connections 201, 202, 203 and 204 are electrically connected as intended to corresponding connections of the multi-phase electrical supply network 300.

[0032] A schematic diagram further shows a construction site power distribution box 400, which has independent electrical distribution box connections 401, 402, 403 and 404, designed for connecting cables 101, 102, 103 and 104 respectively. For this purpose, the distribution box connections 401, 402, 403 and 404 each have a distribution box socket 405.

Claims

[1] Device (200) for discharging thick material, comprising: - at least two independent electrical machine connections (201, 202, 203, 204) designed for connecting at least two separate cables (101, 102, 103, 104) of a connection system (100), - wherein the connection system (100) is provided for connecting the device (200) for discharging thick material to a multi-phase electrical supply network (300) and comprises: - a first cable (101) and - at least one second cable (102, 103, 104) designed independently of the first cable (101), - wherein the first cable (101) is intended to electrically connect the device (200) for discharging thick material to a first phase (L1) of the multi-phase electrical supply network (300) and not to electrically connect it to a second phase (L2) of the multi-phase electrical supply network (300), and - wherein the second cable (102) is intended to electrically connect the device (200) for discharging thick material to the second phase (L2) of the multi-phase electrical supply network (300) independently of the first cable (101) and not to the first phase (L1) of the multi-phase electrical supply network (300). [2] Device (200) for discharging thick material according to claim 1, characterized by , that - the connection system (100) has a third cable (103), wherein the third cable (103) is intended to electrically connect the device (200) for discharging thick material to a third phase (L3) of the multi-phase electrical supply network (300). [3] Device (200) for discharging thick material according to one of the preceding claims, characterized by , that - the connection system (100) comprises a PE connection cable (104) designed independently of the first cable (101) and the second cable (102), which is intended to electrically connect the device (200) for discharging thick material with protective earth (PE). [4] Device (200) for discharging thick material according to one of the preceding claims, characterized by , that - each cable (101, 102, 103, 104) is a single-core cable. [5] Device (200) for discharging thick material according to claim 1, characterized by , that - the first cable (101) is intended to electrically connect the device (200) for discharging thick material to a third phase (L3) of the multi-phase electrical supply network (300) in addition to the first phase (L1), and - the second cable (102) is intended to electrically connect the device (200) for discharging thick material to the second phase (L2) with protective earth (PE). [6] Device (200) for discharging thick material according to claim 5, characterized by , that - each cable (101, 102, 103, 104) is a multi-core cable, in particular a two-core cable. [7] Device (200) for discharging thick material according to one of the preceding claims, characterized by , that - each cable (101, 102, 103, 104) has at least one connector (105, 106). [8] Device (200) for discharging thick material according to one of the preceding claims, characterized by, that - each cable (101, 102, 103, 104) has a minimum length of 5 meters, in particular 20 meters. [9] Device (200) for discharging thick material according to one of the preceding claims, characterized by , that - which each have at least two independent electrical machine connections (201, 202, 203, 204) and a machine socket (205). [10] Device (200) for discharging thick material according to one of the preceding claims, characterized by , that - the device (200) for discharging thick material is a concrete pump. [11] Device (200) for discharging thick material according to one of the preceding claims, characterized by , that - the device (200) for discharging thick material has an electric motor (206) which can be supplied via the at least two independent electrical machine connections (201, 202, 203, 204) from a multi-phase electrical supply network (300). [12] Device (200) for discharging thick material according to one of the preceding claims, characterized by , that - the device (200) for discharging thick material further comprises a test device (207) which is designed to check whether the at least two independent electrical machine connections (201, 202, 203, 204) are electrically connected as intended to corresponding potentials of the multi-phase electrical supply network (300). [13] Construction site power distribution box (400), comprising: - at least two independent electrical construction site power distribution connections (401, 402, 403, 404) designed for connecting at least two separate cables (101, 102, 103, 104) of a connection system (100), - wherein the connection system (100) is provided for connecting a device (200) for discharging thick material to a multi-phase electrical supply network (300) and comprises: - a first cable (101) and - at least one second cable (102, 103, 104) designed independently of the first cable (101), - wherein the first cable (101) is intended to electrically connect the device (200) for discharging thick material to a first phase (L1) of the multi-phase electrical supply network (300) and not to electrically connect it to a second phase (L2) of the multi-phase electrical supply network (300), and - wherein the second cable (102) is intended to electrically connect the device (200) for discharging thick material to the second phase (L2) of the multi-phase electrical supply network (300) independently of the first cable (101) and not to the first phase (L1) of the multi-phase electrical supply network (300). [14] Construction site power distribution unit according to claim 13, characterized by , that - the at least two independent electrical construction site power distribution connections (401, 402, 403, 404) each have a construction site power distribution socket (405).

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