High-voltage battery box installation structure and installation method for off-road mining dump trucks

Abstract

The present invention discloses a high-voltage battery box mounting structure for an off-road mining dump truck, comprising: a mounting bracket, a mounting plate, a cantilever bracket, and a shock absorbing mechanism; the mounting bracket comprises: a bottom plate, a shock absorbing pad, the lower part of the bottom plate is provided with a shock absorbing pad fixing hole, and the shock absorbing pad is provided with a shock absorbing pad center hole; the mounting plate is provided with a mounting plate threaded hole, and the shock absorbing pad fixing screw passes through the shock absorbing pad fixing hole and the shock absorbing pad center hole and is connected to the mounting plate threaded hole; two cantilever brackets are located on both sides of the mounting bracket, and two shock absorbing mechanisms are respectively hinged to the two cantilever brackets. The present invention also discloses an installation method for a high-voltage battery box mounting structure for an off-road mining dump truck. The present invention can stably mount the high-voltage battery box on a single side of the frame, and reduce the left-right swing tendency of the high-voltage battery box, and well absorb the vibration force along the up-and-down direction and the left-and-right direction of the frame, solve the problem of frame cracking, and greatly improve the service life of the vehicle.

Description

Technical Field

[0001] The invention belongs to the field of pure electric off-road mining dump trucks, and in particular relates to a high-voltage battery box installation structure and an installation method for an off-road mining dump truck. Background Art

[0002] The existing pure electric wide-body dump trucks on the market are all equipped with large high-voltage battery boxes for installing power batteries. The high-voltage battery boxes are symmetrically installed on the left and right sides of the vehicle frame. Two L-shaped brackets are installed on both sides of the frame. The high-voltage battery boxes are placed on the L-shaped brackets and fixed with steel straps. At the same time, the high-voltage battery boxes on the left and right sides of the frame are connected to each other with a beam, so that the high-voltage battery boxes on the left and right sides can balance the forces through the middle beam.

[0003] However, for pure electric off-road mining dump trucks, because the hydraulic oil tank is installed on the left side of the frame, the high-voltage battery box can only be installed on the right side of the frame, and the front and rear wheelbases of pure electric off-road mining dump trucks are very short, and the high-voltage battery box cannot be designed as a very long box, resulting in a large height of the high-voltage battery box. As a result, the pure electric off-road mining dump truck cannot borrow the installation structure of the battery box of a pure electric wide-body dump truck.

[0004] A pure electric off-road mining dump truck has a high-voltage battery box installed on one side of the frame longitudinal beam. Due to its large height, the high-voltage battery box will swing left and right, causing cracks in the installation area and reducing the service life of the vehicle. Summary of the invention

[0005] The purpose of the present invention is to provide a high-voltage battery box installation structure and installation method for an off-road mining dump truck, which can stably install the high-voltage battery box on a single side of the frame and reduce the left-right swing tendency of the high-voltage battery box, so as to well absorb the vibration force along the up and down directions and the left and right directions of the frame, solve the problem of frame cracking, and greatly improve the service life of the vehicle.

[0006] To achieve the above purpose, the technical solution used in the present invention is:

[0007] The high-voltage battery box mounting structure of an off-road mining dump truck includes: a mounting bracket, a mounting plate, a cantilever bracket, and a shock absorbing mechanism; the mounting bracket includes: a base plate and a shock absorbing pad, the lower part of the base plate is provided with a shock absorbing pad fixing hole, and the shock absorbing pad is provided with a shock absorbing pad center hole; the mounting plate is provided with a mounting plate threaded hole, and the shock absorbing pad fixing screw passes through the shock absorbing pad fixing hole and the shock absorbing pad center hole and is connected to the mounting plate threaded hole; two cantilever brackets are located on both sides of the mounting bracket, and two shock absorbing mechanisms are respectively hinged to the two cantilever brackets.

[0008] Furthermore, the shock absorbing mechanism includes: a shock absorbing mounting seat and a shock absorbing roller. Support plates are respectively arranged on both sides of the bottom of the shock absorbing mounting seat, and fixed openings are respectively arranged on both sides of the top edge. The fixed opening is located between the two support plates, and the support plate is provided with a support plate through hole; the shock absorbing roller includes: a bushing, a shock absorbing sleeve, and a spherical shaft. A spherical segment is arranged in the middle of the spherical shaft, and the outer wall of the spherical segment is a spherical arc surface, and roller connecting through holes are arranged at both ends; the shock absorbing sleeve is installed on the outside of the spherical arc surface, and the bushing is installed on the outside of the shock absorbing sleeve; the upper part of the bushing is located between the two support plates The roller connecting bolt passes through the through hole of the support plate and the roller connecting through hole, and is fixed with a nut to connect the shock-absorbing roller to the shock-absorbing mounting seat; the cantilever bracket includes: a bracket back plate and a bracket, the rear part of the bracket is connected to the bracket back plate, the top of the bracket is provided with a supporting opening, and connecting threaded holes are provided on both sides of the supporting opening; the lower part of the bushing is located in the supporting opening, the mounting pressure plate is pressed on the upper part of the shock-absorbing mounting seat, the pressure plate through holes at both ends of the mounting pressure plate are aligned with the fixed opening, and the shock-absorbing mechanism fixing screws pass through the pressure plate through holes and the fixed opening to be connected to the connecting threaded holes.

[0009] Furthermore, a shock-absorbing pad buffer plate is arranged at the rear of the shock-absorbing pad, the shock-absorbing pad buffer plate is welded to the base plate, and the shock-absorbing pad buffer plate is provided with a buffer plate through hole; the shock-absorbing pad fixing screw passes through the shock-absorbing pad fixing hole, the buffer plate through hole, and the shock-absorbing pad center hole and is connected to the mounting plate threaded hole.

[0010] Furthermore, a welding opening is provided on the upper portion of the bottom plate.

[0011] Furthermore, a bracket rib is connected between the bracket back plate and the bracket.

[0012] The installation method of the high-voltage battery box installation structure of an off-road mining dump truck includes:

[0013] The shock-absorbing mounting seats of the two shock-absorbing mechanisms are welded to the two sides of the high-voltage battery box, and the two mounting plates are welded to the back of the high-voltage battery box; the mounting bracket and the cantilever bracket are welded to the side of the longitudinal beam, and the two cantilever brackets are located on both sides of the mounting bracket;

[0014] With the help of lifting tools, the high-voltage battery box together with the shock absorbing mechanism and the mounting plate are moved to the side of the longitudinal beam; the shock absorbing mechanism is hinged to the cantilever bracket, the mounting plate is connected to the mounting bracket, and the shock absorbing pad is located between the mounting plate and the mounting bracket.

[0015] Preferably, the two shock absorbing mechanisms are located at the same horizontal height; the two mounting plates are located at the same horizontal height, and the shock absorbing mechanisms are located on the upper parts of the mounting plates; and the two cantilever brackets are located at the same horizontal height.

[0016] Preferably, the bushing is placed between two support plates, the support plate through holes are aligned with the roller connecting through holes, the roller connecting bolts pass through the support plate through holes, the roller connecting through holes are fixed with nuts, and the shock-absorbing roller is connected to the shock-absorbing mounting seat.

[0017] Preferably, the bushings of the two shock-absorbing rollers are respectively placed in the supporting openings of the two cantilever brackets; the mounting pressure plate is placed on the upper part of the shock-absorbing mounting seat, the pressure plate through holes at both ends of the mounting pressure plate are aligned with the fixed openings, the shock-absorbing mechanism fixing screws pass through the pressure plate through holes and the fixed openings and are connected to the connecting threaded holes, and the shock-absorbing mechanism is installed and fixed on the cantilever bracket; the shock-absorbing pad fixing screws pass through the shock-absorbing pad fixing hole, the buffer plate through hole, and the shock-absorbing pad center hole and are connected to the mounting plate threaded hole, and the shock-absorbing pad is located between the mounting plate and the shock-absorbing pad buffer plate.

[0018] Preferably, a welding opening is provided at the upper portion of the bottom plate of the mounting bracket, and welding is performed at the welding opening to weld the bottom plate to the side of the longitudinal beam.

[0019] The technical effects of the present invention include:

[0020] The present invention can stably install the high-voltage battery box on one side of the frame, reduce the tendency of the high-voltage battery box to swing left and right, and well absorb the vibration force along the up and down directions and left and right directions of the frame, solve the problem of frame cracking, and greatly improve the service life of the vehicle.

[0021] The present invention realizes hinge connection between the upper part of the battery box and the longitudinal beam by installing the shock-absorbing mechanisms on the left and right sides of the upper part of the high-voltage battery box on the cantilever bracket on the longitudinal beam of the frame through installing pressure plates and shock-absorbing mechanism fixing screws; the mounting plate and the mounting bracket at the lower part of the high-voltage battery box are connected by shock-absorbing pads and bolts, the lower part of the high-voltage battery box is connected to the mounting bracket, and the middle part is buffered by lateral vibration through shock-absorbing pads, so that the high-voltage battery box forms a shock-absorbing structure that can absorb shocks along the longitudinal and lateral directions of the frame through the mounting structure, effectively reducing the stress concentration of the high-voltage battery box at the longitudinal beam connection position, avoiding frame cracking, and greatly improving the service life of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the back structure of the high-voltage battery box installation structure of the off-highway mining dump truck in the present invention;

[0023] Figure 2 It is a front structural schematic diagram of the high-voltage battery box installation structure of the off-highway mining dump truck in the present invention;

[0024] Figure 3 It is a schematic diagram of the connection between the mounting bracket and the cantilever bracket in the present invention;

[0025] Figure 4 It is a structural schematic diagram of the cantilever bracket in the present invention;

[0026] Figure 5 It is a schematic diagram of the connection between the shock absorbing mechanism and the mounting plate in the present invention;

[0027] Figure 6It is a structural schematic diagram of the shock absorbing mechanism in the present invention;

[0028] Figure 7 It is a structural schematic diagram of the shock-absorbing roller in the present invention;

[0029] Figure 8 It is a cross-sectional view taken along the AA direction of the damping roller of the present invention. DETAILED DESCRIPTION

[0030] The following description sufficiently illustrates specific embodiments of the invention to enable those skilled in the art to practice and reproduce the invention.

[0031] like Figure 1 As shown, it is a schematic diagram of the back structure of the high-voltage battery box installation structure of the off-highway mining dump truck in the present invention; Figure 2 The figure is a front structural schematic diagram of the high-voltage battery box installation structure of the off-road mining dump truck in the present invention.

[0032] The high-voltage battery box 1 is fixed to the side of the longitudinal beam 2 of the frame by using the high-voltage battery box mounting structure of the off-road mining dump truck (referred to as the mounting structure).

[0033] like Figure 3 As shown, it is a schematic diagram of the connection between the mounting bracket 3 and the cantilever bracket 4 in the present invention; Figure 4 FIG. 4 is a schematic diagram of the structure of the cantilever bracket 4 in the present invention.

[0034] The high-voltage battery box installation structure of an off-road mining dump truck includes: a mounting bracket 3, a cantilever bracket 4, a shock absorbing mechanism 5, and a mounting plate 6.

[0035] The mounting bracket 3 and the cantilever bracket 4 are connected (welded) to the side of the longitudinal beam 2 , and the two cantilever brackets 4 are respectively located on both sides of the mounting bracket 3 .

[0036] The mounting bracket 3 includes: a bottom plate 31, a welding opening 32, and a shock absorbing pad 33. The welding opening 32 is arranged at the upper part of the bottom plate 31, and the shock absorbing pad 33 is arranged at the lower part of the bottom plate 31. The bottom plate 31 is attached to the side of the longitudinal beam 2, and welded along the edge of the welding opening 32, which increases the firmness of the welding.

[0037] In order to enhance the connection firmness of the shock-absorbing pad 33 and offset the impact force from the high-voltage battery box 1, a shock-absorbing pad buffer plate 34 is arranged at the rear of the shock-absorbing pad 33, the shock-absorbing pad buffer plate 34 is welded to the bottom plate 31, the shock-absorbing pad buffer plate 34 is provided with a buffer plate through hole, the shock-absorbing pad 33 is provided with a shock-absorbing pad center hole, the bottom plate 31 is provided with a shock-absorbing pad fixing hole, and the shock-absorbing pad fixing hole, the buffer plate through hole and the shock-absorbing pad center hole are coaxially installed.

[0038] The cantilever bracket 4 includes a bracket back plate 41 and a bracket 42. The rear of the bracket 42 is connected to the bracket back plate 41. A support opening 43 is provided at the top of the bracket 42. Connecting threaded holes 44 are provided on both sides of the support opening 43. In order to enhance the connection strength, a bracket rib 45 is connected between the bracket back plate 41 and the bracket 42.

[0039] like Figure 5 As shown in FIG. 1 , it is a schematic diagram of the connection between the shock absorbing mechanism 5 and the mounting plate 6 in the present invention. Figure 6 , which is a schematic structural diagram of the shock absorbing mechanism 5 in the present invention.

[0040] The two damping mechanisms 5 are respectively connected (welded) to both sides of the upper part of the high-voltage battery case 1, and the mounting plate 6 is connected (welded) to the back of the high-voltage battery case 1. The mounting plate 6 is provided with a mounting plate threaded hole 61, and the damping mechanism 5 is located on the upper part of the mounting plate 6. For easy installation, mounting ears 11 are connected to both sides of the top of the high-voltage battery case 1.

[0041] The shock absorbing mechanism 5 comprises: a shock absorbing mounting seat 51 and a shock absorbing roller 52. The shock absorbing mounting seat 51 is provided with support plates 53 on both sides of the bottom, and fixed openings 54 are provided on both sides of the top edge. The fixed openings 54 are located between the two support plates 53. The support plates 53 are provided with support plate through holes. Both ends of the shock absorbing roller 52 are connected to the bottom of the support plates 53.

[0042] like Figure 7 As shown, it is a schematic diagram of the structure of the shock-absorbing roller 52 in the present invention; Figure 8 , which is a cross-sectional view of the damping roller 52 along the AA line of the present invention.

[0043] The shock-absorbing roller 52 includes: a bushing 521, a shock-absorbing sleeve 522, and a spherical shaft 523. A spherical section 524 is arranged in the middle of the spherical shaft 523. The outer wall of the spherical section 524 is a spherical arc surface, and roller connecting through holes 525 are arranged at both ends; the shock-absorbing sleeve 522 is installed outside the spherical arc surface, and the bushing 521 is installed outside the shock-absorbing sleeve 522.

[0044] The spherical shaft 523 can rotate in the circumferential direction within the shock-absorbing sleeve 522 , and can also deflect at a certain angle.

[0045] The upper part of the bushing 521 is located between the two support plates 53 , the support plate through holes are aligned with the roller connecting through holes 525 , the roller connecting bolts 55 pass through the support plate through holes and the roller connecting through holes 525 , and are fixed with nuts to connect the shock absorbing roller 52 to the shock absorbing mounting seat 51 .

[0046] When installing the shock absorbing mechanism 5 to the cantilever bracket 4, the lower part of the bushing 521 is located in the supporting opening 43, the installing pressure plate is pressed on the upper part of the shock absorbing mounting seat 51, the pressure plate through holes at both ends of the installing pressure plate are aligned with the fixing opening 54, and the shock absorbing mechanism fixing screws pass through the pressure plate through holes and the fixing opening 54 and are connected to the connecting threaded holes 44, so that the shock absorbing mechanism 5 is installed and fixed on the cantilever bracket 4.

[0047] The shock-absorbing pad fixing screw passes through the shock-absorbing pad fixing hole, the buffer plate through hole, and the shock-absorbing pad center hole and is connected to the mounting plate threaded hole 61 .

[0048] The installation method of the high-voltage battery box mounting structure of an off-road mining dump truck is as follows:

[0049] Step 1: Install the shock absorbing mechanism 5 and the mounting plate 6 onto the high-voltage battery box 1;

[0050] Weld two shock-absorbing mounting seats 51 on both sides of the high-voltage battery box 1, and the two shock-absorbing mechanisms 5 are located at the same horizontal height; weld two mounting plates 6 on the back of the high-voltage battery box 1, and the two mounting plates 6 are located at the same horizontal height; the shock-absorbing mechanism 5 is located on the upper part of the mounting plate 6; install the shock-absorbing roller 52 to the shock-absorbing mechanism 5, place the bushing 521 between the two support plates 53, align the support plate through hole with the roller connecting through hole 525, and the roller connecting bolt 55 passes through the support plate through hole and the roller connecting through hole 525 and is fixed with a nut to connect the shock-absorbing roller 52 to the shock-absorbing mounting seat 51;

[0051] Step 2: The mounting bracket 3 and the cantilever bracket 4 are fixed to the side of the longitudinal beam 2, and the two cantilever brackets 4 are located on both sides of the mounting bracket 3 and at the same level;

[0052] Welding is performed at the welding opening 32 to weld the bottom plate 31 to the side of the longitudinal beam 2 , and the two bracket back plates 41 to the side of the longitudinal beam 2 .

[0053] Step 3: Use lifting tools to move the high-voltage battery box 1 together with the shock absorbing mechanism 5 and the mounting plate 6 to the side of the longitudinal beam 2; the shock absorbing mechanism 5 is hinged to the cantilever bracket 4, the mounting plate 6 is connected to the mounting bracket 3, and the shock absorbing pad 33 is located between the mounting plate 6 and the mounting bracket 3.

[0054] Place the bushings 521 of the two shock-absorbing rollers 52 into the supporting openings 43 of the two cantilever brackets 4 respectively; place the mounting pressure plate on the upper part of the shock-absorbing mounting seat 51, align the pressure plate through holes at both ends of the mounting pressure plate with the fixing openings 54, and the shock-absorbing mechanism fixing screws pass through the pressure plate through holes and the fixing openings 54 to be connected to the connecting threaded holes 44, and the shock-absorbing mechanism 5 is installed and fixed on the cantilever bracket 4; the shock-absorbing pad fixing screws pass through the shock-absorbing pad fixing hole, the buffer plate through hole, and the shock-absorbing pad center hole to be connected to the mounting plate threaded hole 61, and the shock-absorbing pad 33 is located between the mounting plate 6 and the shock-absorbing pad buffer plate 34.

[0055] The present invention installs the shock absorbing mechanisms 5 on the left and right sides of the upper part of the high-voltage battery box 1 on the cantilever bracket 44 arranged on the side of the frame longitudinal beam 2, the lower part of the high-voltage battery box 1 is connected to the mounting bracket 3 through the mounting plate 6, and a shock absorbing pad 33 is arranged between the mounting plate 6 and the mounting bracket 3; with the help of the buffering effect of the shock absorbing roller 52, the small longitudinal displacement formed by the high-voltage battery box 1 and the frame is absorbed by the bushing 521 and the shock absorbing sleeve 522; the high-voltage battery box 1 is hinged with the shock absorbing mechanism 5 and the cantilever bracket 4, and the vibration caused by the rotation and swing is absorbed by the shock absorbing pad 33, so that a stable hinged shock absorbing structure that can absorb vibration is formed between the high-voltage battery box 1 and the right longitudinal beam 2 of the frame, effectively reducing the stress concentration of the frame, reducing the risk of frame cracking, and greatly improving the service life of the whole vehicle.

[0056] The terms used in the present invention are illustrative and exemplary, rather than restrictive. Since the present invention can be implemented in various forms without departing from the spirit or essence of the technical solution, it should be understood that the above embodiments are not limited to any of the aforementioned details, but should be widely interpreted within the spirit and scope defined by the attached claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the attached claims.

Claims

1. A high-voltage battery box installation structure for an off-road mining dump truck, characterized in that: include: Mounting bracket, mounting plate, cantilever bracket, shock absorbing mechanism; the mounting bracket comprises: a base plate, a shock absorbing pad, the lower part of the base plate is provided with a shock absorbing pad fixing hole, and the shock absorbing pad is provided with a shock absorbing pad center hole; the mounting plate is provided with a mounting plate threaded hole, and the shock absorbing pad fixing screw passes through the shock absorbing pad fixing hole and the shock absorbing pad center hole and is connected to the mounting plate threaded hole; two cantilever brackets are located on both sides of the mounting bracket, and two shock absorbing mechanisms are respectively hinged to the two cantilever brackets; the shock absorbing mechanism comprises: a shock absorbing mounting seat, a shock absorbing roller, support plates are respectively provided on both sides of the bottom of the shock absorbing mounting seat, fixed openings are respectively provided on both sides of the top edge, the fixed openings are respectively provided between the two support plates, and the support plate is provided with a support plate through hole; the shock absorbing roller comprises: a bushing, a shock absorbing sleeve, a spherical shaft, a spherical section is provided in the middle of the spherical shaft, the outer wall of the spherical section is a spherical arc surface, and roller connection through holes are provided at both ends; the shock absorbing sleeve is installed on the outside of the spherical arc surface The bushing is installed on the outside of the shock-absorbing sleeve; the upper part of the bushing is located between the two support plates, and the roller connecting bolts pass through the support plate through holes and the roller connecting through holes, and are fixed with nuts to connect the shock-absorbing roller to the shock-absorbing mounting seat; the cantilever bracket includes: a bracket back plate and a bracket, the rear part of the bracket is connected to the bracket back plate, the top of the bracket is provided with a support opening, and connecting threaded holes are provided on both sides of the support opening; the lower part of the bushing is located in the support opening, the mounting pressure plate is pressed on the upper part of the shock-absorbing mounting seat, the pressure plate through holes at both ends of the mounting pressure plate are aligned with the fixed opening, and the shock-absorbing mechanism fixing screws pass through the pressure plate through holes and the fixed openings and are connected to the connecting threaded holes; a shock-absorbing pad buffer plate is provided at the rear of the shock-absorbing pad, the shock-absorbing pad buffer plate is welded to the bottom plate, and the shock-absorbing pad buffer plate is provided with a buffer plate through hole; the shock-absorbing pad fixing screw passes through the shock-absorbing pad fixing hole, the buffer plate through hole, and the shock-absorbing pad center hole and is connected to the mounting plate threaded hole.

2. The high-voltage battery box installation structure for an off-road mining dump truck according to claim 1, characterized in that: The upper part of the bottom plate is provided with a welding opening, the welding opening is arranged at the upper part of the bottom plate, and the shock-absorbing pad is arranged at the lower part of the bottom plate.

3. The high-voltage battery box installation structure for an off-road mining dump truck according to claim 1, characterized in that: A bracket rib is connected between the bracket back plate and the bracket.

4. A method for installing the high-voltage battery box installation structure of an off-road mining dump truck according to any one of claims 1 to 3, characterized in that: include: The shock-absorbing mounting seats of the two shock-absorbing mechanisms are welded to the two sides of the high-voltage battery box, and the two mounting plates are welded to the back of the high-voltage battery box; the bushing is placed between the two support plates, the through holes of the support plates are aligned with the roller connection through holes, the roller connection bolts pass through the through holes of the support plates and the roller connection through holes and are fixed with nuts to connect the shock-absorbing roller to the shock-absorbing mounting seat; the mounting bracket and the cantilever bracket are welded to the side of the longitudinal beam, and the two cantilever brackets are located on both sides of the mounting bracket; With the help of lifting tools, move the high-voltage battery box together with the shock-absorbing mechanism and the mounting plate to the side of the longitudinal beam; the shock-absorbing mechanism is hinged to the cantilever bracket, the mounting plate is connected to the mounting bracket, and the shock-absorbing pad is located between the mounting plate and the mounting bracket; the bushings of the two shock-absorbing rollers are respectively placed in the support openings of the two cantilever brackets; the mounting pressure plate is placed on the upper part of the shock-absorbing mounting seat, and the pressure plate through holes at both ends of the mounting pressure plate are aligned with the fixed openings, the shock-absorbing mechanism fixing screws pass through the pressure plate through holes and the fixed openings to be connected to the connecting threaded holes, and the shock-absorbing mechanism is installed and fixed on the cantilever bracket; the shock-absorbing pad fixing screws pass through the shock-absorbing pad fixing hole, the buffer plate through hole, and the shock-absorbing pad center hole to be connected to the mounting plate threaded hole, and the shock-absorbing pad is located between the mounting plate and the shock-absorbing pad buffer plate.

5. The method for installing the high-voltage battery box installation structure of an off-road mining dump truck according to claim 4, characterized in that: The two shock absorbing mechanisms are located at the same level; the two mounting plates are located at the same level, and the shock absorbing mechanisms are located on the upper parts of the mounting plates; and the two cantilever brackets are located at the same level.

6. The method for installing the high-voltage battery box installation structure of an off-road mining dump truck according to claim 4, characterized in that: A welding opening is arranged on the upper part of the bottom plate of the mounting bracket, and welding is performed at the welding opening to weld the bottom plate to the side of the longitudinal beam.

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