Mounting structure of electric mine truck steering system and steering system
By adopting a first bracket and a second bracket mounting structure on the electric mining truck, the problem of inconvenient installation of the electric mining truck steering system is solved, and a stable connection and shock resistance of the steering pump and emergency pump are achieved, which can be adapted to emergency pumps of different sizes.
Patent Information
- Application Number
- CN202423230668.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-12-26
AI Technical Summary
In the existing technology, the steering system of pure electric mining trucks is inconvenient to install, especially due to the lack of an engine and power take-off port, which makes the traditional steering pump solution unsuitable and makes it difficult to effectively install electric steering pumps and emergency pumps.
The system employs an installation structure that includes a first bracket and a second bracket. The first bracket secures the steering pump to the vehicle frame via an L-shaped base, while the second bracket secures the emergency pump via an inclined mounting section and mounting holes. Buffer pads and stiffening plates are combined to enhance connection stability and flexibility.
It achieves stable installation of the electric mining truck steering system, reduces the impact of bumpy roads on the steering pump, improves installation flexibility and structural strength, and adapts to emergency pumps of different sizes.
Smart Images
Figure CN223479132U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of electric mining truck technology, specifically relating to an installation structure and steering system for an electric mining truck steering system. Background Technology
[0002] With increasing global focus on environmental protection and sustainable development, electric mining trucks are gradually becoming the mainstream choice for mining transportation. The rapid development of battery and charging technologies provides strong support for the application of pure electric mining trucks. Next-generation battery technology not only improves driving range but also enhances battery life and safety. Meanwhile, as national policies increasingly emphasize intelligent and unmanned mining systems, the demand from mining companies for green, energy-efficient, and highly effective pure electric mining trucks is also constantly increasing.
[0003] Mining trucks typically use fully hydraulic steering, where the steering wheel drives the steering gear, which in turn feeds back to the flow amplifier, actuating the steering cylinder to achieve steering. In pure electric mining trucks, the steering system, a crucial component, undergoes significant changes in control and drive mechanisms. Traditional mining trucks use a gear pump connected to the engine's rear power take-off as the power output, while pure electric mining trucks convert electrical energy into mechanical energy via an integrated battery pack, with an electric steering pump serving as the power output. Since pure electric mining trucks eliminate the engine and use a drive motor to power the entire vehicle, the original gear pump-based steering pump solution is no longer suitable. This leads to a challenge in installing both the electric steering pump and an emergency pump. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an installation structure and steering system for an electric mining truck steering system, so as to solve the problem of inconvenient installation of the electric mining truck steering system.
[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: An installation structure for an electric mining truck steering system, the steering system including a steering pump and an emergency pump, the installation structure including: a first bracket and a second bracket;
[0006] The first bracket is mounted on the vehicle frame. The first bracket includes an L-shaped base. The steering pump is mounted on the L-shaped base. The side of the L-shaped base is connected and fixed to the vehicle frame.
[0007] The second bracket includes a first mounting plate and a second mounting plate. The first mounting plate has mounting portions on both sides that are inclined upwards. Each of the two mounting portions is provided with a first mounting hole. The emergency pump is connected and fixed to the first mounting hole. The second mounting plate is disposed at the bottom of the first mounting plate. The second mounting plate is provided with a second mounting hole for connecting and fixing to the vehicle frame.
[0008] Compared with existing technologies, the above technical solutions have the following beneficial effects:
[0009] Since the electric mining truck does not have an engine or power take-off port, the steering pump and emergency pump are connected to the chassis through the first bracket and the second bracket. After the steering pump is installed on the L-shaped base, it can be fixed to the chassis through the vertical side. The first mounting plate in the second bracket is connected and fixed to the outer periphery of the emergency pump through the first mounting hole, and then fixed to the chassis through the second mounting plate. The overall structure is simple and the fixation is reliable.
[0010] In one embodiment, buffer pads are installed at the four corners of the bottom of the steering pump, and the buffer pads are connected and fixed to the L-shaped base.
[0011] The buffer pads installed at the four corners of the bottom of the steering pump can reduce the impact of the base on the steering pump when driving on bumpy roads.
[0012] In one embodiment, the first bracket further includes two side baffles, the adjacent two edges of which are connected and fixed to the bottom and side surfaces of the L-shaped base, and the two side baffles are clamped at both ends of the steering pump.
[0013] In one embodiment, the emergency pump is provided with a plurality of connection holes at intervals on its outer periphery, corresponding to the first mounting hole.
[0014] The connection between the emergency pump and the first mounting hole is made more flexible by the connection holes formed at intervals around the outer periphery of the emergency pump.
[0015] In one embodiment, at least one of the mounting portions has a notch on the side of the first mounting hole away from the first mounting plate.
[0016] By forming a notch in the first mounting hole on one side of the mounting section, emergency pumps of slightly different sizes can be connected and fixed through the first mounting hole.
[0017] In one embodiment, a stiffening plate is provided at the junction of the bottom of the first mounting plate and the second mounting plate.
[0018] The overall structural strength of the second bracket is improved by setting a stiffening plate at the joint between the first mounting plate and the second mounting plate.
[0019] In one embodiment, the first mounting plate and the second mounting plate have a central cutout, and the stiffening plate is disposed at the edge of the joint between the first mounting plate and the second mounting plate.
[0020] The center of the first mounting plate and the second mounting part is hollowed out to reduce weight. The stiffening plates are placed on both sides to provide better reinforcement without affecting the weight reduction effect of the center hollowing out.
[0021] In one embodiment, the second mounting hole is provided with an extension portion, the outer end of which extends out of the outer contour of the first mounting plate, and the second mounting hole passes through the extension portion.
[0022] By providing an extension, the second mounting hole is extended outward, facilitating contact and connection between the second mounting hole and the external frame.
[0023] This embodiment also discloses a steering system for an electric mining truck, which includes an oil tank, a steering pump, an emergency valve, a priority valve, a steering gear, and the above-mentioned mounting structure;
[0024] The steering pump's oil inlet is connected to the oil tank, the steering pump's oil outlet is connected to the emergency valve's oil inlet, the emergency valve's oil outlet is connected to the priority valve's oil inlet P, the emergency valve is also connected to an emergency pump, the emergency pump's oil inlet is connected to the oil tank, the priority valve's working oil inlet CF is connected to the steering gear's oil inlet P, and the priority valve's working oil inlet EF is connected to the steering gear's return oil inlet T.
[0025] The steering pump is fixed to the vehicle frame by the first bracket, and the emergency pump is fixed to the vehicle frame by the second bracket.
[0026] In one embodiment, the LS port of the steering gear is connected to the LS port of the priority valve, and the return port T of the steering gear is connected to the oil tank through a return oil filter. Attached Figure Description
[0027] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0028] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this utility model.
[0029] Figure 2 for Figure 1 A schematic diagram of the structure at the central steering pump.
[0030] Figure 3 for Figure 1 A schematic diagram of the second support structure.
[0031] Figure 4 This is a hydraulic schematic diagram of Embodiment 2 of this utility model.
[0032] Figure label:
[0033] 1. Steering pump; 2. Emergency pump; 3. Emergency valve; 4. Priority valve; 5. Steering gear; 6. Steering cylinder; 7. Return oil filter; 8. Oil tank;
[0034] 9. First support; 10. Second support;
[0035] 11. L-shaped base; 12. Buffer pad; 13. Side baffle; 14. First mounting plate; 15. Second mounting plate; 16. First mounting hole; 17. Second mounting hole; 18. Mounting part; 19. Notch; 20. Stiffening plate; 21. Extension part. Detailed Implementation
[0036] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.
[0037] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.
[0038] In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0039] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly defined.
[0040] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0041] Example 1
[0042] like Figure 1-3As shown, the present invention provides an installation structure for an electric mining truck steering system, the steering system including a steering pump 1 and an emergency pump 2, and the installation structure including a first bracket 9 and a second bracket 10.
[0043] like Figure 2 As shown, the first bracket 9 is mounted on the vehicle frame. The first bracket 9 includes an L-shaped base 11. The steering pump 1 is mounted on the bottom surface of the L-shaped base 11. The side of the L-shaped base 11 is connected and fixed to the vehicle frame.
[0044] like Figure 3 As shown, the second bracket 10 includes a first mounting plate 14 and a second mounting package 15. The first mounting plate 14 has two upwardly inclined mounting portions 18 on both sides. By setting two inclined mounting portions 18, the mounting portions 18 can fit against the outer peripheral surface of the emergency pump 2. Each of the two mounting portions 18 is provided with a first mounting hole 16, which is used to connect and fix the emergency pump 2 to the connection hole on the outer peripheral surface. The second mounting package 15 is set at the bottom of the first mounting plate 14. The second mounting package 15 is provided with a second mounting hole 17 for connecting and fixing to the vehicle frame. The emergency pump 2 is fixed to the vehicle frame by the second bracket 10.
[0045] Since the electric mining truck does not have an engine or power take-off port, the steering pump 1 and emergency pump 2 are connected to the chassis through the first bracket 9 and the second bracket 10. After the steering pump 1 is installed on the L-shaped base 11, it can be fixed to the chassis through the vertical side. The first mounting plate 14 in the second bracket 10 is connected and fixed to the outer periphery of the emergency pump 2 through the first mounting hole 16, and then fixed to the chassis through the second mounting bag 15. The overall structure is simple and the fixation is reliable.
[0046] To improve the shock resistance of the steering pump 1, buffer pads 12 are installed at the four corners of the bottom of the steering pump 1. The buffer pads 12 are connected and fixed to the L-shaped base 11. The buffer pads 12 between the base and the steering pump 1 can reduce the impact of the base on the steering pump 1 when the road surface is bumpy.
[0047] To improve the structural strength of the L-shaped base 11, the first bracket 9 also includes two side baffles 13. The two adjacent sides of the side baffles 13 are connected and fixed to the bottom and side surfaces of the L-shaped base 11. The two side baffles 13 are clamped between the two ends of the steering pump 1. The side baffles 13 are connected between the bottom and side surfaces of the L-shaped base 11, which can strengthen the two surfaces of the base. At the same time, the side baffles 13 are located at both ends of the steering pump 1, limiting the steering pump 1 therein.
[0048] To improve the connection flexibility between the emergency pump 2 and the first mounting hole 16, the emergency pump 2 is provided with a number of connection holes at intervals on its outer periphery that correspond to the first mounting hole 16. Through the number of connection holes formed at intervals on the outer periphery of the emergency pump 2, any two sets of connection holes can be connected to the first mounting hole 16, so that the emergency pump 2 can be arranged at multiple angles and in multiple postures, making the connection between the emergency pump 2 and the first mounting hole 16 more flexible.
[0049] At least one of the mounting parts 18 has a notch 19 on the side of the first mounting hole 16 away from the first mounting plate 14. The notch 19 provides redundant space for the connection hole on the corresponding emergency pump 2, that is, the connection hole on the emergency pump 2 does not need to be precisely aligned with the first mounting hole 16 on the two mounting parts 18. In addition, it allows emergency pumps 2 with slightly different sizes to be connected and fixed through the first mounting hole 16.
[0050] In this embodiment, a stiffening plate 20 is provided at the junction of the bottom of the first mounting plate 14 and the second mounting package 15. By providing a stiffening plate 20 at the junction of the first mounting plate 14 and the second mounting package 15, the overall structural strength of the second bracket 10 is improved.
[0051] Specifically, the first mounting plate 14 and the second mounting package 15 are hollowed out in the center, and the stiffening plate 20 is disposed at the edge of the joint between the first mounting plate 14 and the second mounting package 15.
[0052] The first mounting plate 14 and the second mounting part 18 are hollowed out in the center to reduce weight. The stiffening plates 20 are set on both sides. The two stiffening plates 20 can play a better role in strengthening, while not affecting the weight reduction of the hollow center.
[0053] In one embodiment, the second mounting hole 17 is provided with an extension 21, the outer end of the extension 21 extends out of the outer contour of the first mounting plate 14, and the second mounting hole 17 passes through the extension 21.
[0054] By providing the extension 21, the second mounting hole 17 is extended outward. Since the outer end of the extension 21 exceeds the outer contour of the first mounting plate 14, the outer end of the extension 21 can better contact the frame, thereby facilitating the contact and connection between the second mounting hole 17 and the external frame.
[0055] Example 2
[0056] like Figure 4 As shown, this embodiment also discloses a steering system for an electric mining truck, which includes an oil tank 8, a steering pump 1, an emergency valve 3, a priority valve 4, a steering gear 5, and the installation structure in Embodiment 1;
[0057] The oil inlet of the steering pump 1 is connected to the oil tank 8, the oil outlet of the steering pump 1 is connected to the oil inlet of the emergency valve 3, the oil outlet of the emergency valve 3 is connected to the oil inlet P of the priority valve 4, the emergency valve 3 is also connected to the emergency pump 2, the oil inlet of the emergency pump 2 is connected to the oil tank 8, the working oil port CF of the priority valve 4 is connected to the oil inlet P of the steering gear 5, the working oil port EF of the priority valve 4 is connected to the return oil port T of the steering gear 5, and the output oil port of the steering gear 5 is connected to the steering cylinder 6.
[0058] The steering pump 1 is fixed to the vehicle frame by the first bracket 9, and the emergency pump 2 is fixed to the vehicle frame by the second bracket 10.
[0059] Furthermore, the LS port of the steering gear 5 is connected to the LS port of the priority valve 4, and the return port T of the steering gear 5 is connected to the oil tank 8 through the return oil filter 7.
[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. An installation structure for an electric mining truck steering system, the steering system comprising a steering pump and an emergency pump, characterized in that, The mounting structure includes: a first bracket and a second bracket; The first bracket is mounted on the vehicle frame. The first bracket includes an L-shaped base. The steering pump is mounted on the L-shaped base. The side of the L-shaped base is connected and fixed to the vehicle frame. The second bracket includes a first mounting plate and a second mounting plate. The first mounting plate has mounting portions on both sides that are inclined upwards. Each of the two mounting portions is provided with a first mounting hole. The emergency pump is connected and fixed to the first mounting hole. The second mounting plate is disposed at the bottom of the first mounting plate. The second mounting plate is provided with a second mounting hole for connecting and fixing to the vehicle frame.
2. The installation structure according to claim 1, characterized in that, The steering pump is equipped with buffer pads at the four corners of its bottom, and the buffer pads are connected and fixed to the L-shaped base.
3. The installation structure according to claim 1, characterized in that, The first bracket also includes two side baffles, the adjacent two edges of which are connected and fixed to the bottom and side surfaces of the L-shaped base, and the two side baffles are clamped at both ends of the steering pump.
4. The installation structure according to claim 1, characterized in that, The emergency pump has several connection holes at intervals around its outer periphery that correspond to the first mounting hole.
5. The installation structure according to claim 4, characterized in that, At least one of the mounting portions has a notch on the side of the first mounting hole away from the first mounting plate.
6. The installation structure according to claim 5, characterized in that, A stiffening plate is provided at the junction of the bottom of the first mounting plate and the second mounting plate.
7. The installation structure according to claim 6, characterized in that, The first mounting plate and the second mounting plate have a central cutout, and the stiffening plate is disposed at the edge of the joint between the first mounting plate and the second mounting plate.
8. The installation structure according to claim 4, characterized in that, The second mounting hole is provided with an extension, the outer end of which extends out of the outer contour of the first mounting plate, and the second mounting hole passes through the extension.
9. A steering system for an electric mining truck, characterized in that, Includes a fuel tank, a steering pump, an emergency valve, a priority valve, a steering gear, and an installation structure as described in any one of claims 1-8; The steering pump's oil inlet is connected to the oil tank, the steering pump's oil outlet is connected to the emergency valve's oil inlet, the emergency valve's oil outlet is connected to the priority valve's oil inlet P, the emergency valve is also connected to an emergency pump, the emergency pump's oil inlet is connected to the oil tank, the priority valve's working oil inlet CF is connected to the steering gear's oil inlet P, and the priority valve's working oil inlet EF is connected to the steering gear's return oil inlet T. The steering pump is fixed to the vehicle frame by the first bracket, and the emergency pump is fixed to the vehicle frame by the second bracket.
10. The steering system according to claim 9, characterized in that, The LS port of the steering gear is connected to the LS port of the priority valve, and the return port T of the steering gear is connected to the oil tank through the return oil filter.