Steering system of mining wide-body vehicle and mining wide-body vehicle

Abstract

A steering system of a mining wide-body vehicle and the mining wide-body vehicle relate to the field of mining transportation equipment, the steering system comprises a main shaft, steering knuckles are mounted at two ends of the main shaft along the length direction, the steering knuckles are used for mounting hub assemblies and brake assemblies, the hub assemblies are mounted on the steering knuckles in a manner of rotating around the axial direction of the hub assemblies, and the brake assemblies are mounted on the steering knuckles in a manner of rotating around the axial direction of the hub assemblies. The brake assembly comprises a brake cylinder, the brake cylinder comprises a traveling brake cavity and a parking brake cavity, the brake cylinder is arranged above the main shaft, the brake assembly can provide enough braking force, the traveling brake function and the parking brake function can be achieved, and the safety and reliability of the vehicle are improved.

Description

Technical Field

[0001] This utility model relates to the field of mining transportation equipment technology, and in particular to a steering system for a wide-body mining vehicle and the wide-body mining vehicle itself. Background Technology

[0002] The environment for transporting mineral materials is quite harsh, characterized by steep slopes, heavy loads, and large variations in load. Traditional transportation equipment is difficult to use in this environment, so heavy-duty mining transport equipment such as wide-body mining cars are generally used. Wide-body mining cars can transport mineral materials such as ore and gravel from the mining site to designated storage or processing areas.

[0003] As the core of the braking system of a wide-body mining car, the steering system is mainly used to transmit forces between the frame and the wheels in various directions. The steering system directly determines the vehicle's handling and safety performance. Due to the large weight of wide-body mining cars and the limited space for the steering system, insufficient braking force can easily occur, causing the vehicle to easily slip and posing certain safety hazards. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a steering system for a wide-body mining vehicle and a wide-body mining vehicle, which can provide sufficient braking force to improve the safety and reliability of the vehicle.

[0005] This utility model provides a steering system for a wide-body mining vehicle, including a main shaft, with steering knuckles installed at both ends of the main shaft along its length. The steering knuckles are used to install wheel hub assemblies and braking assemblies. The wheel hub assemblies are rotatably mounted on the steering knuckles around their own axial direction. The braking assemblies include a brake cylinder, which includes a service brake chamber and a parking brake chamber. The brake cylinder is positioned above the main shaft.

[0006] In one embodiment, the main shaft is provided with mounting seats at both ends along its length. The mounting seats include a sleeve and a connecting arm. The sleeve is used to install the steering knuckle. The two connecting arms are opposite each other in the front-rear direction. One end of the connecting arm is connected to the sleeve. The upper and lower ends of the sleeve protrude from the upper and lower ends of the connecting arm.

[0007] In one embodiment, the connecting arm is configured to have at least one arcuate segment, the arcuate segment causing at least one of the upper end face and the lower end face of the connecting arm to be arcuate.

[0008] In one embodiment, the arc segment includes a first arc segment configured such that at least a portion of the upper end face and the lower end face of the connecting arm is an arc shape that arches in the vertical direction, and / or the arc segment includes a second arc segment configured such that at least a portion of the front end face and the rear end face of the connecting arm is an arc shape that arches in the front-rear direction.

[0009] In one embodiment, the spindle includes a first plate, two first plates facing each other in the vertical direction and respectively connected to the upper and lower ends of the two connecting arms. The two first plates include a third arc segment that cooperates with the first arc segment and is connected to the upper and lower ends of the connecting arms through the third arc segment.

[0010] In one embodiment, the spindle includes two second plates facing each other in the front-rear direction and respectively connected to the front and rear ends of the two connecting arms. The two second plates include a fourth arc segment of the second arc segment and are connected to the front and rear ends of the connecting arms through the fourth arc segment.

[0011] In one embodiment, the steering knuckle includes a connecting portion, a hub mounting portion, and a partition portion. The connecting portion and the hub mounting portion are located on opposite sides of the partition portion in the thickness direction. The connecting portion is rotatably connected to the sleeve, and the hub assembly is rotatably connected to the hub mounting portion.

[0012] In one embodiment, the connecting part includes an upper support arm and a lower support arm, the upper support arm and the lower support arm being opposite each other in the vertical direction, and the sleeve being located between the upper support arm and the lower support arm and being rotatably connected to the upper support arm and the lower support arm.

[0013] In one embodiment, the front-to-back dimensions of the partition are greater than the front-to-back dimensions of the main shaft or the sleeve.

[0014] In one embodiment, the braking assembly further includes a base, the upper end of which is connected to the brake cylinder, and the lower end of which is detachably connected to the upper support arm.

[0015] In one embodiment, an adjustment plate is detachably mounted on the lower end of the base, and the adjustment plate is detachably connected to the upper end of the upper support arm.

[0016] This utility model also proposes a wide-body mining vehicle, including the steering system of the aforementioned wide-body mining vehicle.

[0017] The beneficial effects of this utility model are as follows:

[0018] The steering knuckle swings relative to the main shaft, causing the wheel hub assembly to swing relative to the main shaft, thus achieving the vehicle's steering function. The wheel hub assembly is rotatably mounted on the steering knuckle to achieve the vehicle's driving function. The braking assembly is used to brake the wheel hub assembly to achieve the vehicle's braking function. Placing the brake cylinder above the main shaft avoids interference between the brake cylinder and the surrounding components of the main shaft and provides ample space for its arrangement. The brake cylinder can be configured to include both a service brake chamber and a parking brake chamber, and the size of the service brake chamber and parking brake chamber can be increased as needed to ensure that the vehicle has sufficient braking force and can simultaneously achieve service braking and parking braking functions. This makes it suitable for the complex environment of ore transportation and improves the safety and reliability of wide-body mining vehicles. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0021] Figure 2 This is a cross-sectional view of the main shaft according to an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the mounting base according to an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of a steering knuckle according to an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram showing the connection of the steering knuckle, brake assembly, and mounting base according to an embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of a braking assembly according to an embodiment of the present invention.

[0026] In the picture:

[0027] 10-Main shaft; 101-First plate; 102-Second plate; 11-Mounting seat; 111-Sleeve; 112-Connecting arm; 113-Arc segment; 20-Steering knuckle; 21-Connecting part; 211-Upper support arm; 212-Lower support arm; 22-Wheel hub mounting part; 23-Separation part; 30-Wheel hub assembly; 40-Brake assembly; 41-Brake cylinder; 411-Service brake chamber; 412-Parking brake chamber; 42-Adjusting arm; 43-Base; 44-Adjusting plate. Detailed Implementation

[0028] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of this utility model. Based on the description of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0029] Unless otherwise explicitly specified and limited, the terms "setup," "installation," and "connection" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of these terms based on the specific circumstances.

[0030] The terms “upper,” “lower,” “left,” “right,” “front,” “back,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of description and simplification, 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.

[0031] The terms “first,” “second,” “third,” etc., are used merely to distinguish elements with similar properties, not to indicate or imply relative importance or a specific order.

[0032] The terms “include,” “comprising,” or any other variation thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0033] To facilitate understanding of the positional and connection relationships between the components, the following orientations are based on the mining wide-body vehicle being in a non-steering state.

[0034] The environment for transporting mineral materials is quite harsh, characterized by steep slopes, heavy loads, and large variations in load. Traditional transportation equipment is difficult to use in this environment, so heavy-duty mining transport equipment such as wide-body mining cars are generally used. Wide-body mining cars can transport mineral materials such as ore and gravel from the mining site to designated storage or processing areas.

[0035] As the core of the braking system of a wide-body mining car, the steering system is mainly used to transmit forces between the frame and the wheels in various directions. The steering system directly determines the vehicle's handling and safety performance. Due to the large weight of wide-body mining cars and the limited space for the steering system, insufficient braking force can easily occur, causing the vehicle to easily slip and posing certain safety hazards.

[0036] like Figure 1 As shown, the steering system of the wide-body mining car proposed in this utility model includes a main shaft 10, with steering knuckles 20 rotatably mounted at both ends of the main shaft 10 along its length. A wheel hub assembly 30 and a braking assembly 40 are mounted on the steering knuckles 20. The wheel hub assembly 30 is mounted on the steering knuckles 20 and can rotate about its own axis, so that the wheel hub assembly 30 can rotate relative to the main shaft 10. Figure 5 The braking assembly 40 includes a brake cylinder 41, which includes a service brake chamber 411 and a parking brake chamber 412. The brake cylinder 41 is positioned above the main shaft 10.

[0037] The steering knuckle 20 can swing relative to the main shaft 10, causing the wheel hub assembly 30 to swing relative to the main shaft 10, thereby realizing the vehicle's steering function. The wheel hub assembly 30 is rotatably mounted on the steering knuckle 20 to realize the vehicle's driving function. The braking assembly 40 is used to brake the wheel hub assembly 30 to realize the vehicle's braking function. The brake cylinder 41 is arranged above the main shaft 10, which can avoid interference between the brake cylinder 41 and the peripheral components of the main shaft 10, and has a large arrangement space. The brake cylinder 41 can be configured to include both a service brake chamber 411 and a parking brake chamber 412. The size of the service brake chamber 411 and the parking brake chamber 412 can be increased as needed to ensure that the vehicle has sufficient braking force and can realize both service braking and parking braking functions at the same time. It is suitable for the complex environment of ore transportation and improves the safety and reliability of the wide-body mining car.

[0038] When a vehicle is parked on a slope, relying solely on the braking action of the non-steering system to achieve parking braking may not provide sufficient braking force for heavy-duty wide-body mining vehicles, potentially causing the vehicle to roll away and easily leading to a safety accident. By arranging the brake cylinder 41 above the main shaft 10, surrounding components can be avoided, and sufficient space can be provided for the arrangement of the brake cylinder 41. The brake cylinder 41 can be configured to include a service brake chamber 411 and a parking brake chamber 412, so that the vehicle has sufficient parking braking force. When the vehicle is in motion, the service brake chamber 411 can achieve the vehicle's service braking, and when the vehicle is parked on a slope, the parking brake chamber 412 can achieve the vehicle's parking braking.

[0039] Reference Figure 2 The main spindle 10 has mounting seats 11 at both ends along its length, which are combined with the attached... Figure 3 The mounting base 11 includes a sleeve 111 and two connecting arms 112. The sleeve 111 extends vertically for mounting the steering knuckle 20. The two connecting arms 112 are opposite each other in the longitudinal direction. One end of the connecting arm 112 is connected to the sleeve 111. The connecting arm 112 is connected to the spindle 10. The connecting arm 112 is configured to have at least one arcuate segment 113, which makes at least one of the upper end face and the lower end face of the connecting arm 112 arcuate.

[0040] In one possible implementation, the sleeve 111 is integrally formed with the two connecting arms 112.

[0041] In an example scheme, such as Figure 3 As shown, the arc segment 113 includes a first arc segment, which is configured such that at least one of the upper end face and the lower end face of the connecting arm 112 is an arc shape that arches in the vertical direction. That is, a portion of the connecting arm 112 is arc-shaped in the front-back direction. Taking the upper end face including the above-mentioned arc shape as an example, when the arc arches upward in the vertical direction, the upper end face of the connecting arm 112 protrudes upward, and when the arc arches downward in the vertical direction, the upper end face of the connecting arm 112 is concave downward.

[0042] And / or, in one example embodiment, the arc segment 113 includes a second arc segment configured such that at least one of the front end face and the rear end face of the connecting arm 112 is an arc shape arched in the front-rear direction, that is, a portion of the connecting arm 112 is arc-shaped in the vertical direction.

[0043] In one example scheme, combined Figure 1 and Figure 2The main shaft 10 includes two first plates 101 facing each other in the vertical direction. The two first plates 101 are located on the upper and lower sides of the connecting arm 112 and are respectively connected to the upper and lower ends of the connecting arm 112. Each of the two first plates 101 includes a third arc-shaped segment that mates with a first arc-shaped segment. The two first plates 101 are respectively connected to the upper and lower ends of the connecting arm 112 through the third arc-shaped segments, so that the first plates 101 and the connecting arm 112 fit together, thereby facilitating the connection and fixation of the first plates 101 and the connecting arm 112. Due to the complex working environment of the mining wide-body vehicle, the main shaft 10 and the steering knuckle 20 are easily subjected to large loads and break. The first arc-shaped segment and the third arc-shaped segment can increase the contact area between the first plates 101 and the connecting arm 112, thereby improving the connection strength and reducing the risk of breakage.

[0044] For example, the first plate 101 and the connecting arm 112 are connected by welding, which provides a stable connection, facilitates processing, and reduces the risk of breakage failure at the connection point.

[0045] In one example scheme, combined Figure 1 and Figure 2 The spindle 10 includes two opposing second plates 102 in the front-to-back direction, each connected to the front and rear ends of a connecting arm 112. Each second plate 102 includes a fourth arc-shaped segment that mates with a second arc-shaped segment, and the two second plates 102 are connected to the front and rear ends of the connecting arms 112 via the fourth arc-shaped segments, allowing the second plates 102 to fit snugly against the connecting arms 112 for connection and fixation. The second and fourth arc-shaped segments increase the contact area between the second plates 102 and the connecting arms 112, improving the connection strength between the mounting base 11 and the spindle 10 and reducing the risk of breakage.

[0046] For example, the second plate 102 and the connecting arm 112 are connected by welding, which provides a stable connection, facilitates processing, and reduces the risk of breakage failure at the connection point.

[0047] In one example, two second plates 102 are located on the front and rear sides of two first plates 101 and are connected to the two first plates 101. The two first plates 101 and the two second plates 102 together form a cavity to accommodate a connecting arm 112. The connecting arm 112 is attached to and connected to the end face of the two first plates 101 and the two second plates 102 near the cavity.

[0048] In one example embodiment, the spindle 10 further includes a mandrel, to which the aforementioned first plate 101 and / or second plate 102 can be connected. In another example embodiment, the spindle 10 is configured as a hollow structure formed by the assembly of two first plates 101 and two second plates 102.

[0049] In an example scheme, such as Figure 4 As shown, the steering knuckle 20 includes a connecting portion 21, a hub mounting portion 22, and a partition portion 23. The connecting portion 21 and the hub mounting portion 22 are located on opposite sides of the partition portion 23 in the thickness direction, and are combined... Figure 5 The connecting part 21 is rotatably connected to the sleeve 111. The hub mounting part 22 is a shaft-shaped component used to mount the hub assembly 30. The hub assembly 30 is rotatably connected to the hub mounting part 22. The partition part 23 is used to separate the connecting part 21 from the hub mounting part 22.

[0050] In one possible implementation, the connecting part 21, the hub mounting part 22, and the partition part 23 are integrally formed to have better structural strength, and to save processing time and assembly time, which is conducive to improving installation efficiency.

[0051] For example, combined Figure 4 and Figure 5 The connecting part 21 includes an upper support arm 211 and a lower support arm 212, which are opposite each other in the vertical direction. When the connecting part 21 is connected to the sleeve 111, the sleeve 111 is located between the upper support arm 211 and the lower support arm 212, and the sleeve 111 is rotatably connected to the upper support arm 211 and the lower support arm 212.

[0052] The sleeve 111 includes a first mounting hole. The upper support arm 211 and the lower support arm 212 are each provided with a second mounting hole that mates with the first mounting hole. A pin is inserted into the first mounting hole and the second mounting hole. The pin, the first mounting hole and the second mounting hole mate with each other, so that the sleeve 111 and the connecting part 21 can be rotatably connected.

[0053] In one possible implementation, such as Figure 3 As shown, the upper and lower ends of the sleeve 111 protrude from the connecting arm 112. The distance between the upper support arm 211 and the lower support arm 212 corresponds to the distance between the upper and lower end faces of the sleeve 111. This arrangement can increase the distance between the upper support arm 211 and the lower support arm 212, thereby increasing the height dimension of the partition 23 in the vertical direction, so that the partition 23 has good structural strength.

[0054] For example, the partition 23 is configured such that its front-to-back dimensions are larger than those of the main shaft 10 or the sleeve 111, in order to increase the overall structural strength and avoid the problem of the steering knuckle 20 breaking under large loads during steering.

[0055] For example, the hub assembly 30 is connected to the hub mounting portion 22 via a bearing, and the hub mounting portion 22 is provided with a bearing positioning step to facilitate bearing installation. Optionally, the partition portion 23 is configured such that its front-to-back and vertical dimensions are both larger than the radial dimension of the bearing positioning step.

[0056] like Figure 6 As shown, the braking assembly 40 also includes an adjusting arm 42. One end of the adjusting arm 42 is connected to the brake cylinder 41, and the other end is connected to the main shaft 10. Under the control of the brake cylinder 41, it can cooperate with the service brake chamber 411 and the parking brake chamber 412 to brake the wheel hub assembly 30.

[0057] More specifically, the braking assembly 40 also includes a brake disc and two friction pads. The brake disc is mounted on the wheel hub assembly 30 and rotates synchronously with the wheel hub assembly 30. The two friction pads are used to cooperate with the brake disc. Under the control of the brake cylinder 41, the two friction pads can move closer or further away from each other to contact or separate from the brake disc. When the two friction pads contact the brake disc and clamp the brake disc, the vehicle is in a braking state.

[0058] In an example scheme, such as Figure 6 As shown, the braking assembly 40 also includes a base 43, the upper end of which is connected to the brake cylinder 41, and the lower end of which is detachably connected to the upper support arm 211.

[0059] For example, combined Figure 3 and Figure 6 The upper end of the sleeve 111 protrudes from the upper end of the connecting arm 112. The lower end of the base 43 is provided with a third mounting hole that mates with the second mounting hole on the upper support arm 211. When the base 43 is connected to the upper support arm 211, the upper end of the pin passes through the second mounting hole and is inserted into the third mounting hole. The third mounting hole can accommodate the upper part of the pin and also serves to avoid it. By inserting the pin into the third mounting hole, the base 43 and the upper support arm 211 can be quickly positioned, making it easy to fix the base 43 to the upper support arm 211.

[0060] For example, the base 43 and the upper support arm 211 are detachably connected by screws.

[0061] For example, an adjusting plate 44 is detachably mounted on the lower end of the base 43. The adjusting plate 44 is used to connect to the upper end of the upper support arm 211. The adjusting plate 44 is detachably connected to the base 43, and the installation height of the brake cylinder 41 can be adjusted according to the size requirements of the service brake chamber 411 and the parking brake chamber 412 to meet the installation requirements of the brake cylinder 41, thereby ensuring that the braking force of the vehicle meets the requirements. It can be understood that when the base 43 is connected to the upper end of the upper support arm 211 through the adjusting plate 44, the aforementioned third mounting hole is opened at the lower end of the adjusting plate 44.

[0062] For example, the braking assembly 40 employs pneumatic braking.

[0063] This utility model also proposes a wide-body mining vehicle, including the aforementioned steering system. This wide-body mining vehicle can meet the demands of complex environments in ore transportation, providing both service and parking braking functions. It is particularly suitable for high-tonnage heavy vehicles and has promising application prospects.

[0064] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A steering system for a wide-body mining vehicle, characterized in that, The system includes a main shaft (10), with steering knuckles (20) mounted at both ends along its length. The steering knuckles (20) are used to mount a wheel hub assembly (30) and a brake assembly (40). The wheel hub assembly (30) is rotatably mounted on the steering knuckles (20) about its own axis. The brake assembly (40) includes a brake cylinder (41), which includes a service brake chamber (411) and a parking brake chamber (412). The brake cylinder (41) is positioned above the main shaft (10).

2. The steering system of the wide-body mining vehicle according to claim 1, characterized in that, The main shaft (10) has mounting seats (11) at both ends along its length. The mounting seat (11) includes a sleeve (111) and a connecting arm (112). The sleeve (111) is used to install the steering knuckle (20). The two connecting arms (112) are opposite each other in the front-rear direction. One end of the connecting arm (112) is connected to the sleeve (111). The upper and lower ends of the sleeve (111) protrude from the upper and lower ends of the connecting arm (112).

3. The steering system of the wide-body mining vehicle according to claim 2, characterized in that, The connecting arm (112) is configured to have at least one arc segment (113) such that at least one of the upper end face and the lower end face of the connecting arm (112) is arc-shaped.

4. The steering system of the wide-body mining car according to claim 3, characterized in that, The arc segment (113) includes a first arc segment, which is configured such that at least a portion of the upper end face and the lower end face of the connecting arm (112) is an arc shape that arches in the vertical direction, and / or the arc segment (113) includes a second arc segment, which is configured such that at least a portion of the front end face and the rear end face of the connecting arm (112) is an arc shape that arches in the front-rear direction.

5. The steering system of the wide-body mining vehicle according to claim 4, characterized in that, The main shaft (10) includes a first plate (101), two first plates (101) are opposite each other in the vertical direction and are respectively connected to the upper and lower ends of the two connecting arms (112). The two first plates (101) include a third arc segment that cooperates with the first arc segment and are connected to the upper and lower ends of the connecting arms (112) through the third arc segment.

6. The steering system of the wide-body mining car according to claim 4 or 5, characterized in that, The main shaft (10) includes a second plate (102), two second plates (102) are opposite each other in the front-back direction and are respectively connected to the front and back ends of the two connecting arms (112). The two second plates (102) include a fourth arc segment of the second arc segment and are connected to the front and back ends of the connecting arms (112) through the fourth arc segment.

7. The steering system of the wide-body mining vehicle according to claim 2, characterized in that, The steering knuckle (20) includes a connecting part (21), a hub mounting part (22) and a partition part (23). The connecting part (21) and the hub mounting part (22) are located on opposite sides of the partition part (23) in the thickness direction. The connecting part (21) is rotatably connected to the sleeve (111). The hub assembly (30) is rotatably connected to the hub mounting part (22).

8. The steering system of the wide-body mining vehicle according to claim 7, characterized in that, The connecting part (21) includes an upper support arm (211) and a lower support arm (212). The upper support arm (211) and the lower support arm (212) are opposite each other in the vertical direction. The sleeve (111) is located between the upper support arm (211) and the lower support arm (212) and is rotatably connected to the upper support arm (211) and the lower support arm (212).

9. The steering system of the wide-body mining car according to claim 8, characterized in that, The braking assembly (40) also includes a base (43), the upper end of which is connected to the brake cylinder (41), and the lower end of which is detachably connected to the upper support arm (211).

10. A wide-body mining vehicle, characterized in that, The steering system of the wide-body mining vehicle as described in any one of claims 1 to 9.

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