Power assembly suspension structure of pure electric underground dumper

Abstract

According to the pure electric underground dumper power assembly suspension structure, a dumper power assembly comprises a traction motor and a gearbox, the gearbox is connected with a dumper frame through a first suspension mechanism, and the traction motor is connected with the dumper frame through a second suspension mechanism; the first suspension mechanism comprises first frame end mounting seats fixed to the inner sides of frame edge beams on the two sides of the gearbox and a first equipment end mounting seat arranged between the first frame end mounting seats on the two sides. The second suspension mechanism comprises second equipment end mounting seats fixed to the two sides of the traction motor respectively and second frame end mounting seats fixed to the inner sides of the two frame edge beams respectively, the second equipment end mounting seats correspond to the second frame end mounting seats, and second vibration reduction assemblies are arranged between the second equipment end mounting seats and the second frame end mounting seats. The mounting seat is simple and reliable in structure, convenient to mount and high in space utilization rate; each supporting point of the power assembly is provided with an anti-vibration pad, vibration can be effectively isolated, and the torsional vibration influence of the power assembly is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of dump trucks, in particular to a powertrain suspension structure of a pure electric underground dump truck. Background Art

[0002] Underground dump trucks are vehicles specially used in underground mines, tunnels, subway construction and other occasions. They can carry out transportation tasks in complex underground environments and conditions, and have the function of transporting materials and personnel underground.

[0003] Currently, all underground dump trucks produced in the domestic market are fuel-powered. When transporting goods in underground mines or tunnels, exhaust emissions from these trucks can contribute to increased air pollution in the working environment, complicating ventilation and exhaust at the worksite. Furthermore, engine noise and echoes from prolonged underground operations can harm the health of operators. Purely electric underground dump trucks can effectively address these issues. With their safety, efficiency, and environmental benefits, pure electric underground dump trucks are increasingly widely used abroad and are becoming a trend in the mining industry.

[0004] The powertrain, the source of power for a pure electric underground dump truck, primarily consists of a traction motor and a gearbox. It typically utilizes multi-point mounting. Each mount includes a mounting bracket connected to the powertrain, a vibration damping pad, and a mounting bracket connected to the vehicle frame. During installation, the vibration damping pad is positioned between the two mounting brackets to provide vibration isolation. The mounting structure is symmetrically positioned on both sides of the powertrain, with the traction motor typically utilizing a four-point mounting system and the gearbox a two-point system.

[0005] Due to the high performance requirements of pure electric underground bicycles, the powertrain is often relatively large, which leads to high space requirements for the powertrain. However, the space between the chassis frame side beams is limited, making the current powertrain suspension structure difficult to arrange and inconvenient to disassemble and assemble. Summary of the Invention

[0006] The technical problem to be solved by the utility model is to provide a pure electric underground dump truck powertrain suspension structure with simple structure, high space utilization and easy installation.

[0007] In order to solve the above technical problems, the technical solution of the utility model is: a pure electric underground dump truck powertrain suspension structure, the dump truck powertrain includes a traction motor and a gearbox, the gearbox is connected to the frame through a first suspension mechanism, and the traction motor is connected to the frame through a second suspension mechanism; the first suspension mechanism includes a first frame end mounting seat respectively fixed to the inner side of the frame side beams on both sides of the gearbox and a first equipment end mounting seat provided between the first frame end mounting seats on both sides, the first frame end mounting seat is L-shaped, which includes a first horizontal plate and a first vertical plate, the first vertical plate is fixed to the frame side beams by bolts, and the first equipment end mounting seat spans above the gearbox, The gearbox is connected to the first equipment end mounting seat by bolts, and a first vibration damping assembly is provided between the end of the first equipment end mounting seat and the first cross plate; the second suspension mechanism includes second equipment end mounting seats respectively fixed on both sides of the traction motor and second frame end mounting seats respectively fixed on the inner sides of the two frame side beams, the second equipment end mounting seat corresponds to the second frame end mounting seat, the second equipment end mounting seat includes a second cross plate and a second vertical plate, the second frame end mounting seat includes a third cross plate and a third vertical plate, the second vertical plate is connected to the traction motor by bolts, and the third vertical plate is connected to the frame side beam by bolts, and a second vibration damping assembly is provided between the second cross plate and the third cross plate. The principle of this utility model is as follows: the powertrain suspension structure can be divided into a frame-end mounting seat and an equipment-end mounting seat. The frame-end mounting seat is connected to the frame side beam by bolts, and the equipment-end mounting seat is connected to the powertrain by bolts. A vibration-damping pad is arranged between the frame-end mounting seat and the equipment-end mounting seat for vibration isolation, and the three are connected by bolts; the structure of the mounting seat is simple and reliable, the installation is convenient, and the space utilization rate is high; each support point of the powertrain is provided with a vibration-damping pad, which can effectively isolate vibration and reduce the torsional vibration influence of the powertrain.

[0008] As an improvement, a first reinforcing rib is provided between the first transverse plate and the first vertical plate, a second reinforcing rib is provided between the second transverse plate and the second vertical plate, and a third reinforcing rib is provided between the third transverse plate and the third vertical plate.

[0009] As an improvement, the first equipment end mounting seat includes a U-shaped mounting beam, a fourth reinforcing rib plate is provided in the U-shaped mounting beam, and the first vibration reduction assembly is provided at both ends of the U-shaped mounting beam.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] The mounting base has a simple and reliable structure, is easy to install, and has high space utilization; vibration damping pads are provided at each support point of the powertrain, which can effectively isolate vibration and reduce the impact of torsional vibration of the powertrain. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram showing the coordination between the powertrain and the vehicle frame.

[0013] Figure 2 This is a schematic diagram of the coordination between the vehicle's powertrain and suspension structure.

[0014] Figure 3 This is an exploded view of the second suspension mechanism.

[0015] Figure 4 This is an exploded view of the first suspension mechanism.

[0016] Figure 5 It is a partial cross-sectional view of the first suspension mechanism.

[0017] Figure 6 It is a partial cross-sectional view of the second suspension mechanism. DETAILED DESCRIPTION

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] like Figure 1 As shown, a pure electric underground dump truck powertrain suspension structure, the dump truck powertrain includes a traction motor 5 and a gearbox 4, the gearbox 4 is connected to the frame through a first suspension mechanism 1, and the traction motor 5 is connected to the frame side beam 3 through a second suspension mechanism 2.

[0020] like Figure 2 、 35, the first suspension mechanism 1 includes a first frame end mounting seat 11 fixed respectively on the inner sides of the frame side beams 3 on both sides of the gearbox 4 and a first device end mounting seat 12 provided between the first frame end mounting seats 11 on both sides; the first frame end mounting seat 11 is L-shaped, comprising a first transverse plate 111 and a first vertical plate 112, a first reinforcing rib plate 113 is provided between the first transverse plate 111 and the first vertical plate 112, and the first vertical plate 112 is fixed to the frame side beam 3 by bolts; the first device end mounting seat 12 spans above the gearbox 4, and the gearbox 4 is connected to the middle part of the first device end mounting seat 12 by bolts, and a first vibration damping assembly 13 is provided between the end of the first device end mounting seat 12 and the first transverse plate 111; The first equipment end mounting seat 12 includes a U-shaped mounting beam 121, and a fourth reinforcing rib 122 is provided in the U-shaped mounting beam 121. The first vibration damping assembly 13 is provided at both ends of the U-shaped mounting beam 121; the first vibration damping assembly 13 includes a first rubber body 133, a first bolt 135, a first washer 132, a first nut 134 and a first gasket 131. The U-shaped mounting beam 121 is provided with a mounting hole for the first rubber body 133. The first gasket 132 is located between the first rubber body 133 and the U-shaped mounting beam 121. The first bolt 135 passes through the first gasket 131, the first rubber body 133, and the first cross plate 111 in sequence and is connected to the first nut 134, thereby connecting the first equipment end mounting seat 12 to the first frame end mounting seat 11.

[0021] like Figure 2 、 46, the second suspension mechanism 2 includes a second device end mounting seat 22 respectively fixed on both sides of the traction motor 5 and a second frame end mounting seat 21 respectively fixed on the inner sides of the two frame side beams 3, the second device end mounting seat 22 corresponds to the second frame end mounting seat 21; the second device end mounting seat 22 is L-shaped, which includes a second transverse plate 211 and a second vertical plate 212, a second reinforcing rib plate 213 is provided between the second transverse plate 211 and the second vertical plate 212, and the second vertical plate 212 is connected to the traction motor 5 by bolts; the second frame end mounting seat 21 is L-shaped, which includes a third transverse plate 221 and a third vertical plate 222, a third reinforcing rib plate 223 is provided between the third transverse plate 221 and the third vertical plate 222, It is connected to the frame side beam 3 by bolts; a second vibration damping assembly 23 is provided between the second cross plate 211 and the third cross plate 221; the second vibration damping assembly 23 includes a second rubber body 233, a second bolt 236, a second washer 232, a third washer 234, a second nut 235 and a second gasket 231, and a mounting hole for the second rubber body 233 is provided on the third cross plate 221. The second washer 232 is located between the second rubber body and the third cross plate 221, and the third washer 234 is located between the second rubber body and the second cross plate 211. The second bolt 236 passes through the second gasket 231, the second rubber body 233, and the second cross plate 211 in sequence and is connected to the second nut 235 to connect the second equipment end mounting seat 22 and the second frame end mounting seat 21 together.

[0022] Principle of the utility model: The powertrain suspension structure can be divided into a frame-end mounting seat and an equipment-end mounting seat. The frame-end mounting seat is connected to the frame side beam 3 by bolts, and the equipment-end mounting seat is connected to the powertrain by bolts. A vibration-damping pad is arranged between the frame-end mounting seat and the equipment-end mounting seat for vibration isolation, and the three are connected by bolts; the structure of the mounting seat is simple and reliable, the installation is convenient, and the space utilization rate is high; each support point of the powertrain is provided with a vibration-damping pad, which can effectively isolate vibration and reduce the torsional vibration influence of the powertrain.

Claims

1. A powertrain suspension structure for a pure electric underground dump truck, wherein the powertrain comprises a traction motor and a gearbox, and is characterized by: The gearbox is connected to the frame through a first suspension mechanism, and the traction motor is connected to the frame through a second suspension mechanism; the first suspension mechanism includes a first frame end mounting seat respectively fixed on the inner side of the frame side beams on both sides of the gearbox and a first device end mounting seat provided between the first frame end mounting seats on both sides, the first frame end mounting seat is L-shaped, and includes a first horizontal plate and a first vertical plate, the first vertical plate is fixed to the frame side beam by bolts, the first device end mounting seat spans above the gearbox, the gearbox is connected to the first device end mounting seat by bolts, and the first device end mounting seat A first vibration damping assembly is provided between the end portion and the first cross plate; the second suspension mechanism includes second equipment end mounting seats respectively fixed on both sides of the traction motor and second frame end mounting seats respectively fixed on the inner sides of the two frame side beams, the second equipment end mounting seat corresponds to the second frame end mounting seat, the second equipment end mounting seat includes a second cross plate and a second vertical plate, the second frame end mounting seat includes a third cross plate and a third vertical plate, the second vertical plate is connected to the traction motor by bolts, and the third vertical plate is connected to the frame side beam by bolts, and a second vibration damping assembly is provided between the second cross plate and the third cross plate.

2. The powertrain suspension structure of a pure electric underground dump truck according to claim 1, characterized in that: A first reinforcing rib is provided between the first transverse plate and the first vertical plate, a second reinforcing rib is provided between the second transverse plate and the second vertical plate, and a third reinforcing rib is provided between the third transverse plate and the third vertical plate.

3. The powertrain suspension structure of a pure electric underground dump truck according to claim 1, characterized in that: The first equipment end mounting seat includes a U-shaped mounting beam, a fourth reinforcing rib plate is provided in the U-shaped mounting beam, and the first vibration reduction assembly is provided at both ends of the U-shaped mounting beam.

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