Suspension device for pure electric mine truck

Abstract

The suspension device for the pure electric mine truck comprises an upper suspension plate and a lower suspension plate, the bottom end of the upper suspension plate and the top end of the lower suspension plate are both connected with connecting columns, damping columns are installed in the connecting columns, the surfaces of the damping columns are sleeved with first springs, the bottom ends of the damping columns are connected with a connecting plate, and a fixing rod is installed in the middle of the connecting plate. First connecting blocks are installed in the middle of the bottom end of the upper suspension plate and in the middle of the top end of the lower suspension plate, second connecting blocks are connected to the surfaces of the first connecting blocks, connecting rods are connected to the bottom ends of the second connecting blocks, and damping blocks are connected to the bottom ends of the connecting rods. The device can be connected with a power assembly and a frame girder more stably through the arrangement of the assembly holes, the upper suspension plate and the lower suspension plate can be connected with the connecting plate through the arrangement of the connecting columns and the damping columns, and the damping effect can be achieved; and a damping block and a second spring are arranged, so that the upper suspension plate and the lower suspension plate can be buffered.

Description

Technical Field

[0001] The utility model relates to the technical field of pure electric mining trucks and automobiles, and more specifically to a suspension device for pure electric mining trucks. Background Art

[0002] Pure electric mining trucks refer to mining trucks that use electric power. There is a connection structure inside the mining truck. The suspension device is the connection structure between the powertrain and the frame beam. During the use of the mining truck, the powertrain excitation is transmitted to the suspension through the suspension bracket. The suspension attenuates vibration through its vibration isolation and stiffness. The suspension device can attenuate the excitation transmitted by the powertrain to a large extent, and plays a decisive role in the vibration attenuation of the entire power system.

[0003] For example, the Chinese utility model with application number 202223278503.4 proposes a suspension device for a pure electric mining truck. When quick installation is required, the patent selects a suitable assembly hole, and quickly connects the drive motor lug and the gearbox lug to the frame beam through assembly bolts and assembly nuts. Then, with the cooperation of fasteners, the powertrain is quickly connected to the drive motor bracket and the gearbox bracket. At the same time, with the cooperation of mounting nuts and mounting gaskets, the gearbox bracket is tightly and firmly connected to the surface of the drive motor lug. Under the arc design, the powertrain has a buffering effect when in use, which is convenient for buffering protection of parts. However, the patent achieves the buffering effect by setting the suspension assembly into an arc shape. When the arc-shaped end of the suspension assembly is subjected to multiple vibrations, metal fatigue is likely to occur, which causes damage to the structure and requires replacement, increasing unnecessary maintenance costs.

[0004] Therefore, the utility model proposes a suspension device for a pure electric mining truck. Utility Model Content

[0005] The utility model aims to solve the technical problems raised by the above-mentioned background technology and provides a suspension device for a pure electric mining truck. When in use, a shock absorbing and buffering effect can be achieved through a connecting column and a shock absorbing column. The buffering effect of the device can be enhanced by providing a shock absorbing block and a second spring.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: it includes an upper suspension plate and a lower suspension plate, the bottom end of the upper suspension plate and the top end of the lower suspension plate are both connected with a connecting column, a shock-absorbing column is installed inside the connecting column, a first spring is sleeved on the surface of the shock-absorbing column, the bottom end of the shock-absorbing column is connected with a connecting plate, a fixing rod is installed in the middle of the connecting plate, a first connecting block is installed in the middle of the bottom end of the upper suspension plate and the middle of the top end of the lower suspension plate, a second connecting block is connected to the surface of the first connecting block, the bottom end of the second connecting block is connected to a connecting rod, the bottom end of the connecting rod is connected to a shock-absorbing block, the shock-absorbing block is connected to a second spring, and the upper suspension plate and the lower suspension plate are both provided with a plurality of assembly holes.

[0007] A further preferred solution is that the assembly holes in the upper suspension plate are mirror-imaged with the assembly holes in the lower suspension plate, the lower longitudinal section of the assembly holes is trapezoidal, and the bottom diameter of the assembly holes is larger than the top diameter.

[0008] A further preferred solution: the number of the connecting columns and shock-absorbing columns is 8, which are respectively located on the upper and lower end surfaces of the connecting plate and are distributed in a mirror image. The shock-absorbing column is fixedly connected to the connecting plate, the connecting column located at the upper end of the connecting plate is fixedly connected to the upper suspension plate, and the connecting plate located at the lower end of the connecting plate is fixedly connected to the lower suspension plate.

[0009] A further preferred solution is that an inner cavity is provided in the connecting column, the top end of the shock absorbing column is located in the inner cavity of the connecting column, the shock absorbing column is movably connected to the connecting column, the top end of the first spring is fixedly connected to the connecting column, and the bottom end is fixedly connected to the connecting plate.

[0010] A further preferred solution: there are four connecting rods in total, which are respectively located at the top and bottom ends of the shock absorbing block and are distributed in a mirror image. The connecting rods are rotationally connected to the shock absorbing block.

[0011] A further preferred solution is that a through slot is provided in the middle of the connecting plate, the fixing rod is located in the through slot, and the fixing rod is fixedly connected to the connecting plate.

[0012] A further preferred solution: there are two shock-absorbing blocks, which are located at the left and right ends of the fixed rod respectively, and are sleeved on the surface of the fixed rod and movably connected to the fixed rod. The left and right ends of the second spring are respectively fixedly connected to the two shock-absorbing blocks, and the second spring is sleeved on the surface of the fixed rod.

[0013] Beneficial effects:

[0014] 1. By providing the assembly holes, the upper suspension plate and the lower suspension plate can be fixedly connected with the powertrain and the frame beam respectively by using the assembly holes, and by setting the longitudinal section of the lower end of the assembly hole to be trapezoidal, it is convenient to insert the expansion screw, thereby facilitating the connection between the upper suspension plate and the lower suspension plate, the frame beam and the powertrain, and enhancing the stability between the device and the powertrain and the frame beam;

[0015] 2. By providing a connecting column and a shock-absorbing column, when the upper suspension plate or the lower suspension plate vibrates, the upper suspension plate or the lower suspension plate will move toward the connecting plate. At this time, the top of the shock-absorbing column moves toward the top of the inner cavity opened by the connecting column, so that the connecting column and the connecting plate squeeze the first spring at the same time. The reaction force of the first spring and the vibration force generated by the upper suspension plate or the lower suspension plate offset each other, so that the shock-absorbing effect can be achieved;

[0016] 3. By providing a shock-absorbing block and a second spring, when the upper suspension plate or the lower suspension plate shakes, the second connecting block drives the top end of the connecting rod to move toward the connecting plate, so that the bottom end of the connecting rod drives the shock-absorbing block to move along the surface of the fixed rod toward the center of the fixed rod. The second spring can be pressurized by the two shock-absorbing blocks, and the second spring generates a reaction force to achieve a buffering effect on the upper suspension plate and the lower suspension plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 It is a front sectional structural schematic diagram of the utility model.

[0019] Figure 3 It is a side sectional structural schematic diagram of the utility model.

[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of the connecting column and the shock absorbing column of the utility model.

[0021] Figure 1-4 Middle: 1. upper suspension plate; 2. lower suspension plate; 3. connecting plate; 4. connecting column; 5. shock-absorbing column; 6. first spring; 7. assembly hole; 8. first connecting block; 9. second connecting block; 10. connecting rod; 11. shock-absorbing block; 12. fixing rod; 13. second spring. DETAILED DESCRIPTION

[0022] The following will be combined with the attached embodiment of the utility model Figure 1-Figure 4 , clearly and completely describe the technical solutions in the embodiments of the utility model.

[0023] See also Figure 1-4In the embodiment of the utility model, a suspension device for a pure electric mining truck includes an upper suspension plate 1 and a lower suspension plate 2. The bottom end of the upper suspension plate 1 and the top end of the lower suspension plate 2 are both connected with a connecting column 4. A shock-absorbing column 5 is installed inside the connecting column 4. The surface of the shock-absorbing column 5 is sleeved with a first spring 6. The bottom end of the shock-absorbing column 5 is connected with a connecting plate 3. A fixing rod 12 is installed in the middle of the connecting plate 3. A first connecting block 8 is installed in the middle of the bottom end of the upper suspension plate 1 and the middle of the top end of the lower suspension plate 2. The surface of the first connecting block 8 is connected with a second connecting block 9. The bottom end of the second connecting block 9 is connected with a connecting rod 10. The bottom end of the connecting rod 10 is connected with a shock-absorbing block 11. The shock-absorbing block 11 is connected to a second spring 13. The upper suspension plate 1 and the lower suspension plate 2 are both provided with a plurality of assembly holes 7. First, the upper suspension plate 1 is connected to the frame beam, and the lower suspension plate 2 is connected to the powertrain. Then, when the upper suspension plate 1 or the lower suspension plate 2 vibrates, the upper suspension plate 1 or the lower suspension plate 2 will move toward the connecting plate 3. At this time, the top of the shock-absorbing column 5 moves toward the top of the inner cavity opened by the connecting column 4, so that the connecting column 4 and the connecting plate 3 simultaneously squeeze the first spring 6, and the reaction force of the first spring 6 and the vibration force generated by the upper suspension plate 1 or the lower suspension plate 2 offset each other, thereby achieving a shock-absorbing effect; at the same time, the second connecting block 9 will also move toward the connecting plate 3, driving the top of the connecting rod 10 to move toward the connecting plate 3, so that the bottom end of the connecting rod 10 drives the shock-absorbing block 11 to move along the surface of the fixed rod 12 toward the center of the fixed rod 12, and the second spring 13 can be pressurized by the two shock-absorbing blocks 11, and the second spring 13 generates a reaction force, thereby achieving a buffering effect on the upper suspension plate 1 and the lower suspension plate 2.

[0024] In the embodiment of the utility model, the assembly hole 7 opened in the upper suspension plate 1 and the assembly hole 7 opened in the lower suspension plate 2 are distributed in a mirror image, the lower end longitudinal section of the assembly hole 7 is trapezoidal, and the bottom end diameter of the assembly hole 7 is larger than the top end diameter. By providing the assembly hole 7, the connection between the device and the powertrain and the frame beam can be made more stable.

[0025] When in use, the upper suspension plate 1 is connected to the frame beam, and the lower suspension plate 2 is connected to the powertrain. By setting the longitudinal section of the lower end of the assembly hole 7 to a trapezoid, the expansion screw can be easily inserted, thereby facilitating the connection between the upper suspension plate 1 and the lower suspension plate 2 and the frame beam and the powertrain, and the stability between the device and the powertrain and the frame beam can be enhanced.

[0026] There are 8 connecting columns 4 and shock-absorbing columns 5, which are respectively located on the upper and lower end surfaces of the connecting plate 3 and are distributed in a mirror image. The shock-absorbing column 5 is fixedly connected to the connecting plate 3. The connecting column 4 located at the upper end of the connecting plate 3 is fixedly connected to the upper suspension plate 1, and the connecting plate 3 located at the lower end of the connecting plate 3 is fixedly connected to the lower suspension plate 2. An inner cavity is opened in the connecting column 4, and the top end of the shock-absorbing column 5 is located in the inner cavity of the connecting column 4. The shock-absorbing column 5 is movably connected to the connecting column 4. The top end of the first spring 6 is fixedly connected to the connecting column 4, and the bottom end is fixedly connected to the connecting plate 3. By providing the connecting column 4 and the shock-absorbing column 5, the upper suspension plate 1 and the lower suspension plate 2 can be connected to the connecting plate 3, and the shock-absorbing effect can be achieved.

[0027] When the upper suspension plate 1 or the lower suspension plate 2 vibrates, the upper suspension plate 1 or the lower suspension plate 2 will move toward the connecting plate 3. At this time, the top end of the shock-absorbing column 5 moves toward the top end of the inner cavity opened by the connecting column 4, so that the connecting column 4 and the connecting plate 3 squeeze the first spring 6 at the same time. The reaction force of the first spring 6 and the vibration force generated by the upper suspension plate 1 or the lower suspension plate 2 offset each other and achieve shock absorption effect. By installing the top end of the shock-absorbing column 5 in the inner cavity opened by the connecting column 4, the connection between the upper suspension plate 1 and the lower suspension plate 2 and the connecting plate 3 can be achieved.

[0028] There are four connecting rods 10, which are respectively located at the top and bottom ends of the shock-absorbing block 11 and are distributed in a mirror image. The connecting rod 10 and the shock-absorbing block 11 are rotatably connected. A through groove is opened in the middle of the connecting plate 3, and the fixing rod 12 is located in the through groove. The fixing rod 12 is fixedly connected to the connecting plate 3. There are two shock-absorbing blocks 11, which are respectively located at the left and right ends of the fixing rod 12, and are sleeved on the surface of the fixing rod 12 and movably connected to the fixing rod 12. The left and right ends of the second spring 13 are respectively fixedly connected to the two shock-absorbing blocks 11, and the second spring 13 is sleeved on the surface of the fixing rod 12. The shock-absorbing block 11 and the second spring 13 can play a buffering role on the upper suspension plate 1 and the lower suspension plate 2.

[0029] During use, when the upper suspension plate 1 or the lower suspension plate 2 shakes, the upper suspension plate 1 or the lower suspension plate 2 will move toward the connecting plate 3, thereby driving the second connecting block 9 to move toward the connecting plate 3. The second connecting block 9 drives the top end of the connecting rod 10 to move toward the connecting plate 3, so that the bottom end of the connecting rod 10 drives the shock-absorbing block 11 to move along the surface of the fixed rod 12 toward the center of the fixed rod 12. The second spring 13 can be pressurized by the two shock-absorbing blocks 11, and the second spring 13 generates a reaction force, thereby achieving a buffering effect on the upper suspension plate 1 and the lower suspension plate 2.

Claims

1. A suspension device for a pure electric mining truck, comprising an upper suspension plate (1) and a lower suspension plate (2), characterized in that: The bottom end of the upper suspension plate (1) and the top end of the lower suspension plate (2) are both connected to a connecting column (4), a shock absorbing column (5) is installed inside the connecting column (4), a first spring (6) is sleeved on the surface of the shock absorbing column (5), the bottom end of the shock absorbing column (5) is connected to a connecting plate (3), a fixing rod (12) is installed in the middle of the connecting plate (3), a first connecting block (8) is installed in the middle of the bottom end of the upper suspension plate (1) and the top end of the lower suspension plate (2), a second connecting block (9) is connected to the surface of the first connecting block (8), a connecting rod (10) is connected to the bottom end of the second connecting block (9), a shock absorbing block (11) is connected to the bottom end of the connecting rod (10), and the shock absorbing block (11) is connected to a second spring (13), and the upper suspension plate (1) and the lower suspension plate (2) are both provided with a plurality of assembly holes (7).

2. A suspension device for a pure electric mining truck according to claim 1, characterized in that: The assembly hole (7) opened in the upper suspension plate (1) and the assembly hole (7) opened in the lower suspension plate (2) are distributed in a mirror image, the lower end longitudinal section of the assembly hole (7) is trapezoidal, and the bottom end diameter of the assembly hole (7) is larger than the top end diameter.

3. The suspension device for a pure electric mining truck according to claim 1, characterized in that: The number of the connecting columns (4) and shock absorbing columns (5) is 8, which are respectively located on the upper and lower end surfaces of the connecting plate (3) and are distributed in a mirror image. The shock absorbing columns (5) are fixedly connected to the connecting plate (3), the connecting column (4) located at the upper end of the connecting plate (3) is fixedly connected to the upper suspension plate (1), and the connecting plate (3) located at the lower end of the connecting plate (3) is fixedly connected to the lower suspension plate (2).

4. The suspension device for a pure electric mining truck according to claim 1, characterized in that: An inner cavity is provided in the connecting column (4), the top end of the shock absorbing column (5) is located in the inner cavity of the connecting column (4), the shock absorbing column (5) is movably connected to the connecting column (4), the top end of the first spring (6) is fixedly connected to the connecting column (4), and the bottom end is fixedly connected to the connecting plate (3).

5. The suspension device for a pure electric mining truck according to claim 1, characterized in that: There are four connecting rods (10) in total, which are respectively located at the top and bottom ends of the shock absorbing block (11) and are distributed in a mirror image. The connecting rod (10) is rotatably connected to the shock absorbing block (11).

6. A suspension device for a pure electric mining truck according to claim 1, characterized in that: A through slot is provided in the middle of the connecting plate (3), the fixing rod (12) is located in the through slot, and the fixing rod (12) is fixedly connected to the connecting plate (3).

7. The suspension device for a pure electric mining truck according to claim 1, characterized in that: There are two shock absorbing blocks (11), which are respectively located at the left and right ends of the fixed rod (12), and are sleeved on the surface of the fixed rod (12) and movably connected to the fixed rod (12). The left and right ends of the second spring (13) are respectively fixedly connected to the two shock absorbing blocks (11), and the second spring (13) is sleeved on the surface of the fixed rod (12).

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