Steering tie rod with limiting block, hinge assembly and mining dump truck

Abstract

The utility model discloses a steering tie rod with limiting blocks, a hinge assembly and a mining dump truck. The steering tie rod comprises a tie rod connector and a pair of limiting blocks. The tie rod connector is a C-shaped connector and comprises an upper plate and a lower plate, and the outer side end of the upper plate and the outer side end of the lower plate are each provided with a reaming hole which is coaxially formed. A pair of limiting blocks are symmetrically fixed to the two parallel side faces, close to the reamed holes, of the upper plate, and the bottom ends of the limiting blocks extend downwards by a preset length from the lower surface of the upper plate and are used for making contact with a steering rocker arm or a steering knuckle arm hinged to the transverse pull rod connector. The two limiting blocks are used for limiting rotation and movement of the steering tie rod, collision between the steering tie rod and a steering rocker arm or a steering knuckle arm is avoided, deformation and noise are reduced, the service life of a steering system is prolonged, and therefore the driving experience of a driver is improved, and the reliability and safety of the mining dump truck are improved.

Description

Technical Field

[0001] The utility model relates to a steering tie rod with a limit block, belonging to the field of mining dump trucks. Background Art

[0002] Mining dump trucks are specialized equipment used for transporting ore or earth. They are characterized by heavy load, short distance and high working efficiency. The roads they operate on are very steep, with many turns and harsh working environment. The huge weight and load of mining dump trucks make their steering loads very large. In addition, the driving conditions on mining roads are complex, and drivers need to turn frequently when driving dump trucks. This requires dump trucks to have reliable, flexible and powerful steering performance. During the driving of dump trucks, the steering tie rods are subjected to a great instantaneous impact force, which will cause them to rotate and move up and down, and collide with the connected parts (such as steering rocker arms and steering knuckle arms), generating noise and causing damage, which will reduce the driver's driving experience and shorten the service life of the steering system. Therefore, it is necessary to limit the steering tie rods.

[0003] In the prior art, a spacer is added at the connection between the steering tie rod and the spherical bearing to limit the displacement of the steering tie rod. However, this method can only limit the up and down movement of the steering tie rod, and the limiting effect on its rotation is very limited. It is impossible to avoid the collision between the steering tie rod and the steering rocker arm and the steering knuckle arm. Under the action of long-term impact loads, it is easy to cause deformation and damage, thereby reducing the service life of the steering rod mechanism and reducing the reliability and safety of the dump truck. Summary of the invention

[0004] In view of the above problems, the utility model provides a steering tie rod with a limit block, by fixing a limit block on the left and right sides of the upper end of the tie rod joint respectively to limit the rotation and movement of the steering tie rod, avoid the collision with the steering rocker arm and the steering knuckle arm, reduce deformation and noise, and increase the service life of the steering system, thereby improving the driver's driving experience and improving the reliability and safety of mining dump trucks.

[0005] To achieve the above purpose, the utility model is implemented according to the following technical solutions:

[0006] In a first aspect, the utility model provides a steering tie rod with a limit block, comprising:

[0007] The tie rod joint is a C-shaped joint, comprising an upper plate and a lower plate, wherein the outer ends of the upper plate and the lower plate are each provided with a coaxially arranged reaming hole;

[0008] A pair of limit blocks are symmetrically fixed on two parallel side surfaces of the upper plate close to the reaming holes thereof, and the bottom ends of the limit blocks extend downward from the lower surface of the upper plate by a preset length, so as to contact the steering rocker arm or the steering knuckle arm hinged in the tie rod joint to prevent the steering rocker arm or the steering knuckle arm from hitting the steering tie rod.

[0009] In some embodiments, the stop block coincides with a center line of a reaming hole on the tie rod joint at a center plane facing the tie rod joint.

[0010] In some embodiments, the upper surface of the stopper is flush with the upper surface of the tie rod joint excluding the reaming area.

[0011] In some embodiments, the upper end of the limit block is in the shape of a cuboid, the lower end is in the shape of a semicircle, and the overall outer contour of the limit block is a U-shaped structure.

[0012] In some embodiments, a chamfer is processed at the U-shaped edge of the front surface of the limit block.

[0013] In some embodiments, a welding groove is processed at the U-shaped edge of the rear surface of the limit block for welding the limit block to the tie rod joint.

[0014] In a second aspect, the utility model provides a hinge assembly, comprising:

[0015] The above-mentioned steering tie rod with limit block;

[0016] A steering rocker arm or a steering knuckle arm, mounted in the tie rod joint of the steering tie rod;

[0017] A connecting component used to hinge the steering rocker arm or knuckle arm with the tie rod joint.

[0018] In some embodiments, the connecting component comprises:

[0019] A spherical bearing installed in the tie rod joint;

[0020] A pair of spacers, installed in the tie rod joint and respectively located on the upper and lower end surfaces of the spherical bearing;

[0021] A pin shaft is passed through the reaming hole of the tie rod joint, the inner hole of the spherical bearing and the center hole of the spacer sleeve;

[0022] A pressure plate assembly fixes the pin shaft on the tie rod joint.

[0023] In a third aspect, the utility model provides a mining dump truck equipped with the above-mentioned articulated assembly.

[0024] Beneficial effects of the utility model:

[0025] The structure is simple, welding is convenient, and welding reliability is good. The limit block can effectively limit the rotation and movement of the steering tie rod, realize the limitation of the steering tie rod in different directions and angles, avoid the collision with the steering rocker arm and the steering knuckle arm, reduce the generation of noise and deformation, thereby improving the driver's driving experience and improving the reliability and safety of mining dump trucks. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0027] In the attached picture:

[0028] Figure 1 This is a three-dimensional diagram of a steering tie rod with a limit block of the utility model;

[0029] Figure 2 It is a top view of the steering tie rod with a limit block of the utility model;

[0030] Figure 3 It is a side view of the steering tie rod with a limit block of the utility model;

[0031] Figure 4 It is a three-dimensional diagram of the limit block of the utility model;

[0032] Figure 5 It is a cross-sectional view of the limit block of the utility model;

[0033] Figure 6 It is a cross-sectional view of the hinge assembly of the present utility model.

[0034] In the figure: 1. limit block; 2. tie rod joint; 3. spacer; 4. pin; 5. spherical bearing; 6. steering rocker arm or steering knuckle arm; 21. upper plate; 22. lower plate.

[0035] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0037] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] like Figure 1 , Figure 2 , Figure 3 As shown, a steering tie rod with a limit block comprises a tie rod joint 2 and a pair of limit blocks 1. The tie rod joint 2 is a C-type joint, comprising an upper plate 21 and a lower plate 22. The outer ends of the upper plate 21 and the lower plate 22 are each provided with a coaxially arranged reamed hole; a pair of limit blocks 1 are symmetrically fixed on two parallel side surfaces of the upper plate 21 close to its reamed hole, and the bottom end of the limit block 1 extends downward from the lower surface of the upper plate 21 by a preset length, so as to contact the steering rocker arm or steering knuckle arm 6 hinged in the tie rod joint 2.

[0040] The two limit blocks 1 are used to limit the rotation and movement of the steering tie rod to avoid collision with the steering rocker arm or steering knuckle arm 6, reduce deformation and noise, and increase the service life of the steering system, thereby improving the driver's driving experience and improving the reliability and safety of the mining dump truck.

[0041] Further solutions, such as Figure 2 , Figure 3 As shown, the center plane of the stop block 1 facing the tie rod joint 2 coincides with the center line of the reaming hole on the tie rod joint 2; the upper surface of the stop block 1 is flush with the upper surface of the tie rod joint 2 excluding the reaming hole area. The relative position relationship between the stop block 1 and the tie rod joint 2 is simple, and the stop block 1 can be quickly positioned during the welding process.

[0042] Further solutions, such as Figure 4 , Figure 5As shown, the upper end of the limit block 1 is in a rectangular parallelepiped shape, the lower end is in a semicircular shape, and the overall outer contour of the limit block 1 is a U-shaped structure. The semicircular lower surface can ensure the tangential contact between the limit block 1 and the steering rocker arm or the steering knuckle arm 6, and the symmetrical installation on both sides of the tie rod joint 2 can achieve the limiting effect of at least one limit block 1 in the tilted state, thereby realizing the limiting of the steering tie rod at different angles.

[0043] Further solutions, such as Figure 4 , Figure 5 As shown, the U-shaped edge of the front surface of the limit block 1 is chamfered to reduce the risk of damage to its edge due to impact or friction. The chamfer can be used as a protective measure for the limit block 1 to reduce safety hazards.

[0044] Further solutions, such as Figure 4 , Figure 5 As shown, a welding groove is processed at the U-shaped edge of the rear surface of the limit block 1. The welding groove is relatively large, which can increase the welding contact area between it and the transverse tie rod joint 2, achieve full penetration welding, improve welding quality, and increase its connection reliability; the limit block 1 is arranged on the outside of the transverse tie rod joint 2, which is convenient for welding.

[0045] like Figure 6 As shown, the utility model also provides an articulated assembly, including the above-mentioned steering tie rod with a limit block, a steering rocker arm or a steering knuckle arm 6, and a connecting component; the steering rocker arm or the steering knuckle arm 6 is installed in the tie rod joint 2 of the steering tie rod; the connecting component is used to hinge the steering rocker arm or the steering knuckle arm 6 with the tie rod joint 2 together.

[0046] Further solutions, such as Figure 6 As shown, the connecting parts include a spherical bearing 5, a pair of spacers 3, a pin 4 and a pressure plate assembly; the spherical bearing 5 is installed in the tie rod joint 2; a pair of spacers 3 is installed in the tie rod joint 2, and are respectively located on the upper and lower end surfaces of the spherical bearing 5; the pin 4 passes through the reamed hole of the tie rod joint 2, the inner hole of the spherical bearing 5 and the center hole of the spacer 3; the pressure plate assembly fixes the pin 4 on the tie rod joint 2.

[0047] In summary, the upper end of the limit block is in the shape of a cuboid, and the lower end is in the shape of a semicircle. The upper surface of the limit block is flush with the upper surface of the tie rod joint, and the center surface of the limit block coincides with the center line of the through hole on the tie rod joint. The relative position relationship is simple, and the limit block can be quickly positioned during welding; the semicircular lower surface can ensure the tangential contact between the limit block and the steering rocker arm or the steering knuckle arm, and the symmetrical installation on both sides of the tie rod joint can achieve the limiting effect of at least one limit block in the tilted state, thereby achieving the limiting of the steering tie rod at different angles. Chamfering the front side of the limit block can reduce the risk of damage to its edge due to impact or friction. Chamfering can be used as a protective measure for the limit block to reduce safety hazards; processing a larger welding groove on the rear side of the limit block can increase its welding contact area with the tie rod joint, achieve full penetration welding, improve welding quality, and increase its connection reliability; the limit block is arranged on the outside of the tie rod joint, which is convenient for welding.

[0048] The mining dump truck provided by the utility model is described below. The mining dump truck described below and the articulated assembly described above can be referred to each other.

[0049] The utility model provides a mining dump truck, which may include an articulated assembly as described in any one of the above embodiments.

[0050] The beneficial effects achieved by the mining dump truck provided by the utility model are consistent with the beneficial effects achieved by the articulated assembly provided by the utility model, and will not be described in detail here.

[0051] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0052] In addition, those skilled in the art will understand that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments also means being within the scope of protection of the present utility model and forming different embodiments. For example, in the above embodiments, those skilled in the art can use them in combination according to the known technical solutions and the technical problems to be solved by the present application.

[0053] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this patent can make some changes or modify the technical content suggested above into an equivalent embodiment with equivalent changes without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of the solution of the utility model.

Claims

1. A steering tie rod with a limit block, characterized in that: include: The tie rod joint is a C-shaped joint, comprising an upper plate and a lower plate, wherein the outer ends of the upper plate and the lower plate are each provided with a coaxially arranged reaming hole; A pair of limit blocks are symmetrically fixed on two parallel side surfaces of the upper plate close to the reaming holes thereof, and the bottom ends of the limit blocks extend downward from the lower surface of the upper plate by a preset length, so as to contact the steering rocker arm or the steering knuckle arm hinged in the tie rod joint to prevent the steering rocker arm or the steering knuckle arm from hitting the steering tie rod.

2. A steering tie rod with a limit block according to claim 1, characterized in that: The center plane of the limit block facing the tie rod joint coincides with the center line of the reaming hole on the tie rod joint.

3. A steering tie rod with a limit block according to claim 1, characterized in that: The upper surface of the limit block is flush with the upper surface of the tie rod joint excluding the reaming area.

4. The steering tie rod with a limit block according to claim 1, characterized in that: The upper end of the limit block is in a rectangular parallelepiped shape, and the lower end is in a semicircular shape. The overall outer contour of the limit block is a U-shaped structure.

5. A steering tie rod with a limit block according to claim 4, characterized in that: The U-shaped edge of the front surface of the limit block is chamfered.

6. A steering tie rod with a limit block according to claim 4, characterized in that: A welding groove is processed at the U-shaped edge of the rear surface of the limit block, which is used for welding the limit block to the tie rod joint.

7. A hinge assembly, characterized in that: include: The steering tie rod with a limit block according to any one of claims 1 to 6; A steering rocker arm or a steering knuckle arm, mounted in the tie rod joint of the steering tie rod; A connecting component used to hinge the steering rocker arm or knuckle arm with the tie rod joint.

8. A hinge assembly according to claim 7, characterized in that: The connecting component comprises: A spherical bearing installed in the tie rod joint; A pair of spacers, installed in the tie rod joint and respectively located on the upper and lower end surfaces of the spherical bearing; A pin shaft is passed through the reaming hole of the tie rod joint, the inner hole of the spherical bearing and the center hole of the spacer sleeve; A pressure plate assembly fixes the pin shaft on the tie rod joint.

9. A mining dump truck, characterized in that: The hinge assembly according to claim 7 or 8 is installed.

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