High-stability base for high-rotating-speed off-line test bench of new energy automobile

Abstract

The utility model discloses a high-stability base for a high-rotating-speed off-line test bench of a new energy automobile, which relates to the technical field of the high-rotating-speed off-line test bench of the new energy automobile and comprises a metal shell, a damping block and a bottom sealing plate. The high-stability base provided by the utility model adopts the combination of the welding steel and the damping shock absorption block, can effectively absorb vibration energy and reduce a vibration value, and has the characteristics of high damping and high inherent frequency, so that the vibration value generated by a high-speed off-line test bench during high-speed operation is very small, the normal operation of equipment is effectively ensured, and the service life of the equipment is prolonged. The service life of equipment is prolonged; the failure rate is reduced; according to actual application detection, the inherent frequency of the high-stability base is larger than 400 Hz, the vibration value is smaller than or equal to 5 mm / s, compared with a conventional cast iron base, resonance at the high speed can be avoided, and the high-stability base completely meets the requirement of a new energy automobile high-speed offline detection rack in the market.

Description

Technical Field

[0001] The utility model relates to the technical field of a high-speed off-line test bench for new energy vehicles, in particular to a high-stability base for a high-speed off-line test bench for new energy vehicles. Background Art

[0002] With the continuous development of science and technology, the use of electric vehicles in modern society is increasing, and the various requirements for electric vehicles are also constantly increasing; with the rapid development of new energy vehicles, the requirements for automotive motors are also constantly developing towards high performance, high efficiency, and high power density. Therefore, the upper limit of the drive motor speed is constantly increasing, and the speed requirements for the offline test benches of new energy vehicles are also getting higher and higher; in modern society, although high-speed laboratory test benches have been widely used in the domestic and foreign markets, the application of high-speed offline test benches is still not mature due to the high degree of automation, large amount of data collection, high control accuracy, and high vibration requirements of high-speed offline test benches. With the rapid development of new energy vehicles, the upper limit of the drive motor speed is constantly increasing, and the high-speed operation of the equipment will produce greater vibrations. These greater vibrations will affect the normal operation of the high-speed offline test bench when the high-speed offline test bench is used to detect new energy vehicles, reduce the service life of the high-speed offline test bench, and the failure rate of the high-speed offline test bench will also increase accordingly. Utility Model Content

[0003] The purpose of the utility model is to provide a high-stability base for a high-speed off-line test bench for new energy vehicles, so as to solve the problem proposed in the above-mentioned background technology that the new energy vehicle generates large vibrations at high speeds, which affects the normal operation of the high-speed off-line test bench when the high-speed off-line test bench detects the new energy vehicle, reduces the service life of the high-speed off-line test bench, and the failure rate of the high-speed off-line test bench will also increase accordingly.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-stability base for a high-speed offline test bench for new energy vehicles, comprising a metal shell with an opening at the bottom, and a damping shock-absorbing block is filled inside the shell, and a bottom sealing plate is arranged at the bottom opening; the metal shell comprises a rectangular shell top plate, and short side baffles vertically downward are welded along its two short sides on the bottom surface of the shell top plate, and long side inclined plates extending obliquely downward outward are welded along its two long sides, and at the same time, the two ends of the long side inclined plate are respectively welded and fixed to the short side baffles at the two ends, and the long side inclined plates of the short side baffles are The bottom edges are in the same horizontal plane and a circular plate is welded and fixed at the bottom edges; a plurality of screw holes are evenly arranged on the inner side wall of the circular plate, and a bottom sealing plate is fixed with bolts; the damping shock-absorbing block comprises a damping transverse plate and a plurality of damping vertical plates crisscrossed inside the metal shell, and a damping filler is filled between the inside of the metal shell and the damping transverse plates and the damping vertical plates; a concave sealing plate groove is arranged in the middle of the bottom surface of the bottom sealing plate, and a plurality of bolt through holes coaxial with the screw holes of the circular plate are evenly penetrated on each side wall of the sealing plate groove.

[0005] Preferably, the damping transverse plate is vertically arranged in the middle of the front and rear sides of the metal shell, the top edge is welded and fixed to the bottom surface of the shell top plate, and the left and right side edges are respectively welded and fixed to the two short side baffles; multiple damping longitudinal plates are evenly distributed and vertically arranged on the left and right sides inside the metal shell, the top edge of each damping longitudinal plate is welded and fixed to the bottom surface of the shell top plate, and the front and rear side edges are respectively welded and fixed to the two long side inclined plates.

[0006] Preferably, four rectangular notches are evenly arranged at the bottom edge of each long-side inclined plate, and a vertical baffle is welded and fixed between the inner side of each rectangular notch and the circular plate; and the circular plate is provided with a mounting hole at each rectangular notch.

[0007] Preferably, a plurality of T-shaped grooves are arranged evenly front to back and are parallel to the long sides of the top surface of the top plate of the housing and are transversely penetrated.

[0008] Preferably, a plurality of plate through holes are provided on both the damping transverse plate and the damping longitudinal plate.

[0009] Preferably, hanging holes are provided on both side edges of each short side baffle plate at the outer side portions beyond the corresponding long side inclined plates.

[0010] Preferably, the metal shell is integrally formed by welding a steel structure; the bottom surface of the bottom sealing plate and the bottom surface of the circular plate are in the same plane.

[0011] Preferably, the natural frequency of the high-stability base is greater than 400 Hz and the vibration value is ≤5 mm / s.

[0012] Preferably, an air spring, or a shock-absorbing foot, or a shock-absorbing pad may be fixed to the bottom of the high-stability base.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The high-stability base provided by the utility model adopts a combination of welded steel and damping shock-absorbing blocks, which can effectively absorb vibration energy and reduce vibration values, and has the characteristics of high damping and high natural frequency, so that the vibration value generated by the high-speed offline test bench during high-speed operation is very small, which effectively ensures the normal operation of the equipment, increases the service life of the equipment and reduces the failure rate; actual application tests have shown that the natural frequency of the high-stability base is greater than 400Hz, and the vibration value is ≤5mm / s. Compared with the conventional cast iron base, it can avoid resonance at high speeds, and fully meet the market requirements for high-speed offline test benches for new energy vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an exploded view of the utility model;

[0016] Figure 2 This is the axonometric drawing of the utility model;

[0017] Figure 3 It is a top view;

[0018] Figure 4 for Figure 3 Sectional view of AA in the middle;

[0019] Figure 5 for Figure 3 Cross-sectional view of the middle BB;

[0020] Figure 6 It is a schematic diagram of the damping shock absorbing block;

[0021] In the figure: metal shell 1, shell top plate 11, T-slot 12, short side baffle 13, long side inclined plate 14, circular plate 15, hanging hole 16, rectangular notch 17, vertical baffle 18, mounting hole 19, damping shock absorbing block 2, damping horizontal vertical plate 21, damping vertical vertical plate 22, damping filler 23, vertical plate through hole 24, bottom sealing plate 3, sealing plate groove 31, bolt through hole 32. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the technical solution in the embodiments of the present utility model is clearly and completely described below in conjunction with the accompanying drawings and specific embodiments.

[0023] Please refer to Figure 1-5 , Figure 1 This is an exploded view of the utility model; Figure 2This is the axonometric drawing of the utility model; Figure 3 It is a top view; Figure 4 for Figure 3 Sectional view of AA in the middle; Figure 5 for Figure 3 Cross-sectional view of the middle BB; Figure 6 Schematic diagram of the damping shock absorber block.

[0024] The utility model provides a high-stability base for a high-speed off-line test bench for new energy vehicles, which is used to reduce the vibration value of the high-speed off-line test bench for new energy vehicles, effectively ensure the normal operation of the high-speed off-line test bench for new energy vehicles, increase the service life of the high-speed off-line test bench for new energy vehicles and reduce the failure rate; it includes a metal shell 1 with a bottom opening, the interior of the metal shell 1 is filled with a damping shock-absorbing block 2, and a bottom sealing plate 3 is fixed at the bottom opening of the metal shell 1 using bolts.

[0025] The metal shell 1 is welded as a whole with a steel structure, including a rectangular shell top plate 11 arranged horizontally on the top, and a plurality of T-slots 12 parallel to the long sides and evenly arranged front and back are arranged transversely on the top surface of the shell top plate 11 for equipment installation. On the bottom surface of the shell top plate 11, short side baffles 13 extending vertically downward are welded along its two short sides, and long side inclined plates 14 extending obliquely downward outward are welded along its two long sides. At the same time, the two ends of the long side inclined plates 14 are respectively welded and fixed to the short side baffles 13 at both ends, and the bottom sides of the long side inclined plates 14 of the short side baffles 13 are in the same horizontal plane, and a circular plate 15 is welded and fixed at the bottom edge together, and a bottom sealing plate 3 is bolted to the hollow opening of the circular plate 15, thereby sealing the interior of the metal shell 1 as a whole.

[0026] Each short side baffle 13 is provided with hanging holes 16 at the outer side portions beyond the corresponding long side inclined plates 14 for hanging the high stability base.

[0027] Four rectangular notches 17 are evenly arranged at the bottom edge of each long-side inclined plate 14, and a vertical baffle 18 is welded and fixed between the inner side of each rectangular notch 17 and the circular plate 15; at the same time, the circular plate 15 is provided with a mounting hole 19 at each rectangular notch 17 for fixing and installing the high-stability base with bolts.

[0028] The damping shock-absorbing block 2 includes a damping transverse vertical plate 21 vertically arranged in the middle of the front and rear sides of the interior of the metal shell 1, the top edge of which is welded and fixed to the bottom surface of the shell top plate 11, and the left and right side edges are respectively welded and fixed to the two short side baffles 13; a plurality of vertically arranged damping longitudinal vertical plates 22 are evenly distributed on the left and right sides of the interior of the metal shell 1, and the plurality of damping longitudinal vertical plates 22 are cross-arranged with the damping transverse vertical plate 21, and the top edge of each damping longitudinal vertical plate 22 is welded and fixed to the bottom surface of the shell top plate 11, and the front and rear side edges are respectively welded and fixed to the two long side inclined plates 14; in addition, a damping filler 23 is filled between the interior of the metal shell 1 and the damping transverse vertical plate 21 and the damping longitudinal vertical plate 22, and the interior of the metal shell 1 is filled as a whole by the damping filler 23, thereby effectively reducing the vibration value of the high stability base.

[0029] In addition, in order to enhance the stability of the combination of the damping transverse plate 21 and the damping vertical plate 22 with the damping filler 23, a plurality of plate through holes 24 are provided on the damping transverse plate 21 and the damping vertical plate 22.

[0030] A concave sealing plate groove 31 is provided in the middle of the bottom surface of the bottom sealing plate 3, and a plurality of bolt through holes 32 are evenly penetrated on each side wall of the sealing plate groove 31. At the same time, a plurality of screw holes coaxial with the bolt through holes 32 are provided on the side of the inner opening of the circular plate 15, so that bolts can be used to penetrate the bolt through holes 32 and connect and fix with the screw holes on the circular plate 15, so that the bottom sealing plate 3 and the circular plate 15 are connected and fixed, and the bottom surface of the bottom sealing plate 3 after connection and fixation is in the same plane as the bottom surface of the circular plate 15.

[0031] After practical application testing, the natural frequency of the high-stability base of the above structure is greater than 400Hz and the vibration value is ≤5mm / s.

[0032] In addition, air springs, shock-absorbing feet, or shock-absorbing pads can be selected at the bottom of the high-stability base according to actual application conditions, and the bottom can be fixed for connection and support to further reduce the vibration value of the high-stability base.

[0033] The high-stability base provided by the utility model adopts a combination of welded steel and damping shock-absorbing blocks, which can effectively absorb vibration energy and reduce vibration values, and has the characteristics of high damping and high natural frequency, so that the vibration value generated by the high-speed offline test bench during high-speed operation is very small, which effectively ensures the normal operation of the equipment, increases the service life of the equipment and reduces the failure rate; actual application tests have shown that the natural frequency of the high-stability base is greater than 400Hz, and the vibration value is ≤5mm / s. Compared with the conventional cast iron base, it can avoid resonance at high speeds, and fully meet the market requirements for high-speed offline test benches for new energy vehicles.

[0034] Although the embodiments of the utility model have been shown and described, it is obvious that the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, it can be understood by ordinary technicians in this field that all other embodiments obtained by making various changes, modifications, substitutions and variations to these embodiments without departing from the principle and spirit of the utility model and without making creative work, all belong to the scope of protection of the utility model.

Claims

1. A high-stability base for a high-speed off-line test bench for new energy vehicles, characterized in that: The invention comprises a metal shell (1) with a bottom opening, wherein a damping shock absorbing block (2) is filled inside the metal shell, and a bottom sealing plate (3) is arranged at the bottom opening; the metal shell (1) comprises a rectangular shell top plate (11), on the bottom surface of the shell top plate (11), short side baffles (13) extending vertically downward are welded along its two short sides, and long side inclined plates (14) extending obliquely downward outward are welded along its two long sides, and at the same time, the two ends of the long side inclined plates (14) are respectively welded and fixed to the short side baffles (13) at the two ends, the bottom sides of the long side inclined plates (14) of the short side baffles (13) are in the same horizontal plane, and a circular plate (15) is welded and fixed at the bottom sides, and at the bottom sides, the short side baffles (13) are welded and fixed to the long side inclined plates (14) of the short side baffles (13). A plurality of screw holes are evenly arranged on the inner side wall of the circular plate (15), and a bottom sealing plate (3) is fixed by bolts; the damping shock absorbing block (2) comprises a damping transverse vertical plate (21) and a plurality of damping vertical vertical plates (22) which are crisscrossed inside the metal shell (1), and a damping filler (23) is filled between the damping transverse vertical plates (21) and the damping vertical vertical plates (22) inside the metal shell (1); an upward concave sealing plate groove (31) is arranged in the middle of the bottom surface of the bottom sealing plate (3), and a plurality of bolt through holes (32) which are coaxial with the screw holes of the circular plate (15) are evenly arranged on each side wall of the sealing plate groove (31).

2. The high-stability base for the high-speed off-line test bench of new energy vehicles according to claim 1 is characterized in that: The damping transverse vertical plate (21) is vertically arranged in the middle of the front and rear sides of the metal shell (1), the top edge is welded and fixed to the bottom surface of the shell top plate (11), and the left and right side edges are respectively welded and fixed to the two short side baffles (13); a plurality of damping longitudinal vertical plates (22) are evenly distributed and vertically arranged on the left and right sides of the metal shell (1), the top edge of each damping longitudinal vertical plate (22) is welded and fixed to the bottom surface of the shell top plate (11), and the front and rear side edges are respectively welded and fixed to the two long side inclined plates (14).

3. The high-stability base for the high-speed off-line test bench of new energy vehicles according to claim 2 is characterized in that: Four rectangular notches (17) are evenly arranged at the bottom edge of each long-side inclined plate (14), and a vertical baffle (18) is welded and fixed between the inner side of each rectangular notch (17) and the circular plate (15); and the circular plate (15) is provided with a mounting hole (19) at each rectangular notch (17).

4. The high-stability base for the high-speed off-line test bench of the new energy vehicle according to claim 3 is characterized in that: A plurality of T-shaped grooves (12) parallel to the long sides thereof and arranged evenly front to back are arranged transversely through the top surface of the housing top plate (11).

5. The high-stability base for a high-speed off-line test bench for new energy vehicles according to any one of claims 1 to 4, characterized in that: A plurality of vertical plate through holes (24) are provided on the damping transverse vertical plate (21) and the damping vertical vertical plate (22).

6. The high-stability base for the high-speed off-line test bench of the new energy vehicle according to claim 5, characterized in that: Hanging holes (16) are provided on both sides of each short side baffle (13) at the outer side portions beyond the corresponding long side inclined plate (14).

7. The high-stability base for the high-speed off-line test bench of new energy vehicles according to claim 6, characterized in that: The metal shell (1) is integrally formed by welding a steel structure; the bottom surface of the bottom sealing plate (3) and the bottom surface of the circular plate (15) are in the same plane.

8. The high-stability base for the high-speed off-line test bench of new energy vehicles according to claim 7, characterized in that: The natural frequency of the high-stability base is greater than 400 Hz, and the vibration value is ≤5 mm / s.

9. The high-stability base for the high-speed off-line test bench of new energy vehicles according to claim 7, characterized in that: An air spring, a shock-absorbing foot, or a shock-absorbing pad may be fixed to the bottom of the high-stability base.

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