Battery box installation structure and installation method for pure electric off-road mining dump truck

Abstract

The present invention discloses a battery box installation structure for a pure electric off-road mining dump truck, comprising: a shoulder pole beam, a buffer component, and an elastic connecting component, wherein both ends of the shoulder pole beam are provided with shoulder pole beam through holes; the buffer component comprises: a battery box connector and a pin shaft, wherein the battery box connector comprises a front panel and a side panel connected to each other, wherein a pin shaft through hole is provided on the upper portion of the side panel, and the pin shaft is penetrated through the shoulder pole beam through hole and the pin shaft through hole; a connector bolt passes through the connector through hole and a first connecting through hole to connect the box connector and the frame extension bracket together; a box connecting bolt passes through a second connecting through hole, a box connecting through hole, and a shock absorbing pad to connect to the front panel, and the shock absorbing pad is located between the front panel and the box connector. The present invention also discloses an installation method for a battery box installation structure for a pure electric off-road mining dump truck. The present invention changes the connection mode and force mode of the battery box, and can ensure the structural stability and working stability of the frame and the battery box.

Description

Technical Field

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

[0002] Pure electric off-road mining dump trucks are used to transport ore in mines. The frame needs to withstand greater load-bearing capacity and torque to adapt to the complex road conditions of mine roads. At present, the market requires pure electric off-road mining dump trucks to run longer and longer, so the number of batteries has to be increased to ensure sufficient power supply. Increasing the number of batteries results in the battery box becoming heavier and larger.

[0003] The battery box is fixed on the side of the frame. As the weight of the battery box increases, a large torque is generated on the frame. The frame will be twisted and deformed under the large torque and long-term lateral torsional stress. The battery box is hung on the frame on one side, which will generate an extrusion force on the frame. As the vehicle moves, the battery box will repeatedly hit the frame laterally. Therefore, the battery box installed on the outer side of the traditional longitudinal beam will cause the frame to be subjected to lateral torsional stress, reduce the service life of the frame, and easily cause safety hazards. The battery box will be damaged under repeated impacts, and the battery box will work unstably, affecting the stability of the power supply. Summary of the invention

[0004] The purpose of the present invention is to provide a battery box installation structure and installation method for a pure electric off-road mining dump truck, which changes the connection mode and force mode of the battery box and can ensure the structural stability and working stability of the frame and the battery box.

[0005] To achieve the above purpose, the technical solution used in the present invention is:

[0006] The battery box installation structure of a pure electric off-road mining dump truck includes: a shoulder pole beam, a buffer component, and an elastic connecting component. Both ends of the shoulder pole beam are provided with shoulder pole beam through holes; the buffer component includes: a battery box connector and a pin shaft. The battery box connector includes a front panel and a side panel connected to each other. The upper part of the side panel is provided with a pin shaft through hole, and the pin shaft is penetrated through the shoulder pole beam through hole and the pin shaft through hole; the elastic connecting component includes: a frame extension bracket, a box body connector, and a shock-absorbing pad; a first connecting through hole and a second connecting through hole are provided at the lower part of the frame extension bracket, and a plurality of first connecting through holes are located outside the second connecting through hole; a box body connector is provided with a box body connecting through hole in the middle, and a plurality of connecting part through holes are provided outside the box body connecting through hole, and a connecting part bolt passes through the connecting part through hole and the first connecting through hole to connect the box body connector and the frame extension bracket together; the box body connecting bolt passes through the second connecting through hole, the box body connecting through hole, and the shock-absorbing pad to be connected to the front panel, and the shock-absorbing pad is located between the front panel and the box body connector.

[0007] Furthermore, the frame extension bracket includes: a first longitudinal plate, a second longitudinal plate, and a transverse plate, the transverse plate is connected between the first longitudinal plate and the second longitudinal plate, and the lower part of the second longitudinal plate is provided with a first connecting through hole and a second connecting through hole.

[0008] Furthermore, a mounting through hole is provided at the lower part of the first connecting through hole, end plates are provided at both ends of the transverse tie rod, and the end plates are provided with transverse tie rod connecting through holes. The transverse tie rod connecting bolts pass through the transverse tie rod connecting through holes and the mounting through holes to connect the transverse tie rod between the two second longitudinal plates.

[0009] Furthermore, welding holes are provided on the upper parts of the first longitudinal plate and the second longitudinal plate, and the welding holes are located on the upper part of the transverse plate; and reinforcing rib plates are connected between the first longitudinal plate, the second longitudinal plate and the transverse plate.

[0010] Furthermore, a frame connecting plate and a box connecting plate are respectively provided at both ends of the torque cylinder extension bracket, the box connecting plate is provided with a torque cylinder through hole, the box connecting bolt passes through the torque cylinder through hole and the shock-absorbing pad is connected to the front panel, and the shock-absorbing pad is located between the front panel and the box connecting plate.

[0011] Furthermore, the side panel is used to connect to the battery box, and a space is left between the front panel and the battery box.

[0012] Furthermore, the shoulder pole beam comprises: a beam plate, a bottom plate, and a connecting plate, wherein the connecting plate is connected between the two beam plates, the bottom plate is connected to the bottoms of the two beam plates, the outer walls of the two beam plates are respectively provided with a first shoulder pole beam through hole and a second shoulder pole beam through hole, the outer side of the first shoulder pole beam through hole is provided with a fixing threaded hole, and the second shoulder pole beam through hole is provided with a pin shaft baffle; the first shoulder pole beam through hole and the second shoulder pole beam through hole are coaxial, and together constitute the shoulder pole beam through hole; the bottom plate is provided with a plurality of connecting through holes or U-shaped openings, and the connecting bolts pass through the connecting through holes or the U-shaped openings to be connected to the upper part of the frame; the pin shaft through hole is located between the first shoulder pole beam through hole and the second shoulder pole beam through hole, the pin shaft is penetrated into the first shoulder pole beam through hole, the pin shaft through hole, and the second shoulder pole beam through hole, and the front end abuts against the pin shaft baffle; a pin shaft fixing groove is provided at the rear end portion of the pin shaft, and fixing plate through holes are respectively provided at both ends of the pin shaft fixing plate; the pin shaft fixing plate is installed in the pin shaft fixing groove, and the screw passes through the fixing plate through hole to be connected to the fixing threaded hole.

[0013] Furthermore, a bridge-shaped structure is arranged in the middle of the shoulder pole beam.

[0014] The installation method of the battery box installation structure of a pure electric off-road mining dump truck includes:

[0015] The battery box connector is welded to the battery box, the bottom plates of the two shoulder pole beams are connected to the upper part of the frame by connecting bolts, and the two shoulder pole beam through holes of the shoulder pole beam are located outside the frame; the frame extension bracket is welded under the two longitudinal beams of the frame, and the frame extension bracket is located under the shoulder pole beam through holes; the side panel is welded to the battery box, and a space is left between the front panel and the battery box;

[0016] The two battery boxes are moved to both sides of the frame respectively, the pin shaft through hole is aligned with the shoulder pole beam through hole, the pin shaft passes through the shoulder pole beam through hole and the pin shaft through hole to hinge the two battery boxes on both sides of the shoulder pole beam; the box body connecting piece is connected to the frame extension bracket by using the connecting bolt, and the shock absorbing pad is connected between the front panel and the box body connecting piece by using the box body connecting bolt.

[0017] Preferably, the tie rod is connected between the two frame extension brackets, and the connecting bolts are connected to the upper part of the frame through the connecting through holes or U-shaped openings of the bottom plate; the two longitudinal beams of the frame are respectively inserted between the first longitudinal plate and the second longitudinal plate of the frame extension bracket, and the first longitudinal plate and the second longitudinal plate are welded to the frame; the torsion cylinder extension bracket is connected to the side of the frame, and the box connecting bolts pass through the box connecting plate to fix the shock-absorbing pad between the front panel and the box connecting plate.

[0018] The technical effects of the present invention include:

[0019] The present invention changes the connection mode and force-bearing mode of the battery box, and can ensure the structural stability and working stability of the frame and the battery box.

[0020] 1. The present invention changes the connection mode of single-sided lateral mounting to a battery box connected to both sides of the frame, a shoulder pole beam connecting (hinging) the battery boxes on both sides of the frame, and the shoulder pole beam fixed to the upper part of the frame, so that the battery box is vertically loaded downward to the upper part of the frame, thereby reducing the lateral torsional stress on the frame.

[0021] 2. The lower part of the battery box uses a horizontal tie rod to connect the battery boxes on both sides of the frame. After the shoulder beam and the horizontal tie rod connect the battery boxes on both sides of the frame, an overall rectangular structure is formed with better structural stability to prevent the battery box from repeatedly impacting the frame laterally.

[0022] Both ends of the shoulder pole beam are hinged to the upper part of the battery box, and the elastic rubber pad is elastically connected to the lower part of the battery box, which can effectively resolve and buffer the repeated lateral impact of the battery box on the frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural diagram of the battery box installation structure of the pure electric off-road mining dump truck in the present invention;

[0024] Figure 2 It is a structural diagram of the shoulder pole beam in the present invention;

[0025] Figure 3 It is a structural diagram of a shoulder-pole beam provided with a bridge-shaped structure in the present invention;

[0026] Figure 4 It is a structural exploded view of the battery box installation structure of the pure electric off-road mining dump truck in the present invention. DETAILED DESCRIPTION

[0027] The following description sufficiently illustrates specific embodiments of the invention to enable those skilled in the art to practice and reproduce the invention.

[0028] like Figure 1 , which is a structural diagram of the battery box installation structure of the pure electric off-road mining dump truck in the present invention.

[0029] The battery box installation structure of a pure electric off-road mining dump truck includes: a shoulder pole beam 1 and a tie rod 2. The two ends of the shoulder pole beam 1 are used to hinge the upper part of the battery box 5, and the lower part is used to elastically connect the frame 6. The two ends of the tie rod 2 are used to connect the lower part of the battery box 5.

[0030] like Figure 2 As shown in FIG. 1 , it is a structural diagram of the shoulder beam 1 in the present invention; Figure 3 As shown, it is a structural diagram of a shoulder pole beam 1 with a bridge-shaped structure in the present invention.

[0031] The shoulder pole beam 1 is provided with shoulder pole beam through holes 11 at both ends, and a bottom plate 12 is provided at the bottom. The bottom plate 12 is provided with multiple connecting through holes 121 and U-shaped openings 122. The connecting bolts 13 pass through the connecting through holes 121 (or U-shaped openings 122) and are connected to the upper part of the frame 6.

[0032] In order to increase the connection strength between the shoulder pole beam 1 and the frame 6 , a short plate 61 is provided on the side of the frame 6 , and the short plate 61 is provided with a short plate through hole. The connecting bolt 13 passes through the connecting through hole 121 (or the U-shaped opening 122 ) and the short plate through hole to fix the shoulder pole beam 1 to the upper part of the frame 6 .

[0033] The shoulder pole beam 1 comprises: a beam plate 14, a bottom plate 12, and a connecting plate 15, wherein the connecting plate 15 is connected between two beam plates 14, and the bottom plate 12 is connected to the bottom of the two beam plates 14. A first shoulder pole beam through hole 141 is provided on the outer wall of one beam plate 14, and a second shoulder pole beam through hole 142 is provided on the outer wall of the other beam plate 14. A fixing threaded hole 143 is provided on the outer side of the first shoulder pole beam through hole 141, and a pin stopper 144 is provided on the second shoulder pole beam through hole 142. The first shoulder pole beam through hole 141 and the second shoulder pole beam through hole 142 are coaxial and together constitute the shoulder pole beam through hole 11.

[0034] In order to adapt to the structure of the vehicle frame 6, a bridge-shaped structure is provided in the middle of the shoulder beam 1. The two beam plates 14 are respectively provided with bridge-shaped structure splits, and a bridge-shaped ridge is provided in the middle of the bottom plate 12. The two bridge-shaped structure splits and the bridge-shaped ridge constitute the bridge-shaped structure.

[0035] The shoulder beam through hole 11 is hinged to the upper part of the battery box 5 by using the buffer component 3 , and the cross tie rod 2 is connected to the lower part of the battery box 5 by using the elastic connection component 4 .

[0036] like Figure 4The figure shows a structural exploded view of the battery box installation structure of the pure electric off-road mining dump truck in the present invention.

[0037] The buffer component 3 includes: a battery box connector 31, a pin 32, the battery box connector 31 includes a front panel 312 and a side panel 313 connected to each other, the side panel 313 is welded to the battery box 5, a pin through hole 311 is provided on the upper part of the side panel, and a space is left between the front panel 312 and the battery box 5; a pin fixing groove 322 is provided at the rear end of the pin 32, a pin fixing plate 321 is installed in the pin fixing groove 322, and fixing plate through holes are provided at both ends of the pin fixing plate 321 The pin shaft through hole 311 is located between the first shoulder-pole beam through hole 141 and the second shoulder-pole beam through hole 142. The pin shaft 32 passes through the first shoulder-pole beam through hole 141, the pin shaft through hole 311 and the second shoulder-pole beam through hole 142. The front end abuts against the pin shaft baffle 144. The pin shaft fixing plate 321 is installed in the pin shaft fixing groove 322. The screw passes through the fixing plate through hole and is connected to the fixing threaded hole 143 to fix the pin shaft 32 in the shoulder-pole beam through hole 11, thereby realizing the hinge connection between the shoulder-pole beam 1 and the buffer component 3.

[0038] The elastic connection component 4 includes: a frame extension bracket 41 , a box connection piece 42 , and a shock-absorbing pad 45 .

[0039] The frame extension bracket 41 includes: a first longitudinal plate 411, a second longitudinal plate 412, and a transverse plate 413. The transverse plate 413 is connected between the first longitudinal plate 411 and the second longitudinal plate 412. The lower part of the second longitudinal plate 412 is provided with a first connecting through hole 415, a second connecting through hole 416, and an installation through hole 417. The multiple first connecting through holes 415 are located on the outside of the second connecting through holes 416, and the installation through holes 417 are located at the lower part of the first connecting through holes 415.

[0040] The first longitudinal plate 411 and the second longitudinal plate 412 are provided with welding holes 414 on the upper part, and the welding holes 414 are located on the upper part of the transverse plate 413; the frame 6 is located between the first longitudinal plate 411 and the second longitudinal plate 412, and welding is performed in the welding holes 414, which is beneficial to increase the connection strength between the elastic connecting component 4 and the frame 6. A reinforcing rib plate is connected between the first longitudinal plate 411, the second longitudinal plate 412 and the transverse plate 413.

[0041] The box connecting member 42 is provided with a box connecting through hole 421 in the middle, and a plurality of connecting member through holes are provided on the outside of the box connecting through hole 421. The connecting member bolt 422 passes through the connecting member through hole and the first connecting through hole 415 to connect the box connecting member 42 and the frame extension bracket 41 together; the box connecting bolt 44 passes through the second connecting through hole 416, the box connecting through hole 421, and the shock absorbing pad 45 to be connected to the front panel 312, and the shock absorbing pad 45 is located between the front panel 312 and the box connecting member 42.

[0042] End plates 21 are provided at both ends of the tie rod 2 , and the end plates 21 are provided with tie rod connecting through holes. The tie rod connecting bolts 22 pass through the tie rod connecting through holes and the mounting through holes 417 to connect the tie rod 2 between the two second longitudinal plates 412 .

[0043] In order to further firmly connect the battery box 5 and buffer the lateral impact force, a torsion cylinder extension bracket 43 is connected between the front panel 312 and the frame 6. A frame connecting plate 431 and a box connecting plate 432 are respectively provided at both ends of the torsion cylinder extension bracket 43. The frame connecting plate 431 is used to be connected to the frame 6. The box connecting plate 432 is provided with a torque cylinder through hole 433. The box connecting bolt 44 passes through the torque cylinder through hole 433 and the shock-absorbing pad 45 is connected to the front panel 312. The shock-absorbing pad 45 is located between the front panel 312 and the box connecting plate 432.

[0044] Installation method of battery box mounting structure for pure electric off-road mining dump truck:

[0045] Step 1: Weld the battery box connector 31 to the battery box 5, connect the bottom plates 12 of the two shoulder pole beams 1 to the upper part of the frame 6 by connecting bolts 13, and the two shoulder pole beam through holes 11 of the shoulder pole beam 1 are located outside the frame; weld the frame extension bracket 41 below the two longitudinal beams of the frame 6, and the frame extension bracket 41 is located below the shoulder pole beam through holes 11;

[0046] The side panels 313 are welded to the battery box 5 , respectively, and a space is left between the front panel 312 and the battery box 5 .

[0047] The connecting bolt 13 passes through the connecting through hole 121 and the U-shaped opening 122 of the bottom plate 12 and is connected to the upper part of the frame 6. The bridge-shaped structure in the middle of one of the shoulder beams 1 can avoid contact with parts higher than the frame 6, thereby reducing friction.

[0048] The two longitudinal beams of the frame 6 at the lower part of the shoulder beam 1 are respectively inserted between the first longitudinal plate 411 and the second longitudinal plate 412 of the frame extension bracket 41, and the first longitudinal plate 411 and the second longitudinal plate 412 are welded to the frame.

[0049] Step 2: Move the two battery boxes 5 to both sides of the frame respectively, align the pin shaft through hole 311 with the shoulder pole beam through hole 11, and the pin shaft 32 passes through the shoulder pole beam through hole 11 and the pin shaft through hole 311 to hinge the two battery boxes 5 on both sides of the shoulder pole beam; use the connecting bolt 422 to connect the box body connecting piece 42 to the frame extension bracket 41, and use the box body connecting bolt 44 to connect the shock absorbing pad 45 between the front panel 312 and the box body connecting piece 42; connect the transverse rod 2 between the two frame extension brackets 41.

[0050] The torsion cylinder extension bracket 43 is connected to the side of the vehicle frame 6 , and the box connecting bolt 44 passes through the box connecting plate 432 to fix the shock absorbing pad 45 between the front panel 312 and the box connecting plate 432 .

[0051] 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 battery box installation structure for a pure electric off-road mining dump truck, characterized in that: include: A shoulder pole beam, a buffer component, an elastic connecting component, and a cross tie rod, and shoulder pole beam through holes are arranged at both ends of the shoulder pole beam; the buffer component includes: a battery box connecting component and a pin shaft, and the battery box connecting component includes a front panel and a side panel connected to each other, and a pin shaft through hole is arranged on the upper part of the side panel, and the pin shaft is penetrated through the shoulder pole beam through hole and the pin shaft through hole; the elastic connecting component includes: a frame extension bracket, a box body connecting component, and a shock absorbing pad; a first connecting through hole and a second connecting through hole are arranged at the lower part of the frame extension bracket, and a plurality of first connecting through holes are located outside the second connecting through hole; a box body connecting component is provided with a box body connecting through hole in the middle, and a plurality of first connecting through holes are located outside the second connecting through hole A plurality of connecting member through holes are provided, and the connecting member bolts pass through the connecting member through holes and the first connecting through holes to connect the box connecting member and the frame extension bracket together; the box connecting bolts pass through the second connecting through holes, the box connecting through holes, and the shock-absorbing pads to be connected to the front panel, and the shock-absorbing pads are located between the front panel and the box connecting member; the frame connecting plates and the box connecting plates are respectively provided at both ends of the torque cylinder extension bracket, and the box connecting plates are provided with torque cylinder through holes, and the box connecting bolts pass through the torque cylinder through holes and the shock-absorbing pads to be connected to the front panel, and the shock-absorbing pads are located between the front panel and the box connecting plates, and the two ends of the cross tie rod are used to connect the lower part of the battery box.

2. The battery box installation structure of a pure electric off-road mining dump truck according to claim 1, characterized in that: The frame extension bracket comprises: a first longitudinal plate, a second longitudinal plate, and a transverse plate, wherein the transverse plate is connected between the first longitudinal plate and the second longitudinal plate, and a first connecting through hole and a second connecting through hole are arranged at the lower part of the second longitudinal plate.

3. The battery box installation structure of a pure electric off-road mining dump truck according to claim 2, characterized in that: A mounting through hole is provided at the lower part of the first connecting through hole, end plates are provided at both ends of the transverse tie rod, and the end plates are provided with transverse tie rod connecting through holes. The transverse tie rod connecting bolts pass through the transverse tie rod connecting through holes and the mounting through holes to connect the transverse tie rod between the two second longitudinal plates.

4. The battery box installation structure of a pure electric off-road mining dump truck according to claim 2, characterized in that: The first longitudinal plate and the second longitudinal plate are provided with welding holes on the upper part, and the welding holes are located on the upper part of the transverse plate; a reinforcing rib plate is connected between the first longitudinal plate, the second longitudinal plate and the transverse plate.

5. The battery box installation structure of a pure electric off-road mining dump truck according to claim 1, characterized in that: The shoulder pole beam comprises: a beam plate, a bottom plate and a connecting plate, wherein the connecting plate is connected between the two beam plates, the bottom plate is connected to the bottom of the two beam plates, the outer walls of the two beam plates are respectively provided with a first shoulder pole beam through hole and a second shoulder pole beam through hole, the outer side of the first shoulder pole beam through hole is provided with a fixing threaded hole, and the second shoulder pole beam through hole is provided with a pin shaft baffle; the first shoulder pole beam through hole and the second shoulder pole beam through hole are coaxial, and together constitute the shoulder pole beam through hole; the bottom plate is provided with a plurality of connecting through holes or U-shaped openings, and the connecting bolts pass through the connecting through holes or the U-shaped openings to be connected to the upper part of the frame; the pin shaft through hole is located between the first shoulder pole beam through hole and the second shoulder pole beam through hole, the pin shaft is penetrated into the first shoulder pole beam through hole, the pin shaft through hole and the second shoulder pole beam through hole, and the front end is against the pin shaft baffle; a pin shaft fixing groove is provided at the rear end of the pin shaft, and fixing plate through holes are respectively provided at both ends of the pin shaft fixing plate; the pin shaft fixing plate is installed in the pin shaft fixing groove, and the screw passes through the fixing plate through hole to be connected to the fixing threaded hole.

6. The battery box installation structure of a pure electric off-road mining dump truck according to claim 1, characterized in that: A bridge-shaped structure is arranged in the middle of the shoulder pole beam.

7. A method for installing a battery box installation structure for a pure electric off-road mining dump truck according to any one of claims 1 to 6, characterized in that: include: The battery box connector is welded to the battery box, the bottom plates of the two shoulder pole beams are connected to the upper part of the frame by connecting bolts, and the two shoulder pole beam through holes of the shoulder pole beam are located outside the frame; the frame extension bracket is welded under the two longitudinal beams of the frame, and the frame extension bracket is located under the shoulder pole beam through holes; the side panel is welded to the battery box, and a space is left between the front panel and the battery box; The two battery boxes are moved to both sides of the frame respectively, the pin shaft through hole is aligned with the shoulder pole beam through hole, the pin shaft passes through the shoulder pole beam through hole and the pin shaft through hole to hinge the two battery boxes on both sides of the shoulder pole beam; the box body connecting piece is connected to the frame extension bracket by using the connecting bolt, the shock absorbing pad is connected between the front panel and the box body connecting piece by using the box body connecting bolt, and the cross tie rod is connected between the two frame extension brackets.

8. The method for installing the battery box installation structure of a pure electric off-road mining dump truck according to claim 7, characterized in that: The connecting bolts are connected to the upper part of the frame through the connecting through holes or U-shaped openings of the bottom plate; the two longitudinal beams of the frame are respectively inserted between the first longitudinal plate and the second longitudinal plate of the frame extension bracket, and the first longitudinal plate and the second longitudinal plate are welded to the frame; the torsion cylinder extension bracket is connected to the side of the frame, and the box connecting bolts pass through the box connecting plate to fix the shock-absorbing pad between the front panel and the box connecting plate.

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