Modularized steering connection structure, steering assembly and mining dump truck
Through the modularly designed steering knuckles and steering arms, the steering connection structures of the left and right front wheels are universal and interchangeable, which solves the problems of high cost of steering knuckles and steering arms of mining dump trucks and the wide variety of parts, reducing production and management costs.
Patent Information
- Application Number
- CN202421476346.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-06-26
AI Technical Summary
Due to the large load capacity of the steering knuckle and steering arm of the mining dump truck, the single part has a large volume and high cost. Due to the symmetrical structure of left and right mirror image, the types and quantity of parts have been increased and the production management cost has been increased.
The steering knuckle and steering arm are adopted with a modular design, making the steering connection structures of the left and right front wheels universal and interchangeable, reducing the types of parts, molds, and tooling.
The versatility and interchangeability of the steering connection structure of mining dump trucks is realized, and the costs of production, management and spare parts are reduced.
Smart Images
Figure CN222554994U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a modular steering connection structure and belongs to the technical field of mining dump trucks. Background Art
[0002] Mining dump trucks usually use a mirror-symmetrical steering knuckle and steering arm assembly structure. Due to the large load capacity of mining dump trucks, the steering knuckle and steering arm are required to have sufficient strength, resulting in large volume and high cost of a single part. Since mining trucks use mirror-symmetrical steering knuckles and steering knuckle arms, the types and quantity of parts are increased, further increasing the production and management costs of mining trucks. Summary of the invention
[0003] In view of the deficiencies in the prior art, the utility model provides a modular steering connection structure, which adopts a modularly designed steering knuckle and steering arm, so as to realize the universal and interchangeable steering connection structures of the left and right front wheels of a mining dump truck, reduce the types of parts, molds, tools and fixtures, and reduce the costs of production, management and spare parts.
[0004] The utility model is implemented according to the following technical solutions:
[0005] In a first aspect, the utility model provides a modular steering connection structure, comprising:
[0006] Steering knuckle, including a stepped shaft and flange connected to the wheel assembly and a connecting block connected to the front suspension;
[0007] A steering arm, one end surface of which is connected to the side mounting surface of the connecting block;
[0008] A pin assembly, used for hinge-connecting the tie rod and the steering arm;
[0009] When the wheel assembly is a left wheel assembly, the steering knuckle is connected to the left wheel assembly and the left front suspension, the steering arm is connected to a mounting surface of one side of the connecting block, and the steering arm is connected to the left tie rod through a pin assembly;
[0010] When the wheel assembly becomes the right wheel assembly, the steering knuckle rotates horizontally 180 degrees, the steering knuckle is connected to the right wheel assembly and the right front suspension, the steering arm flips horizontally 180 degrees and is connected to the other side mounting surface of the connecting block, and the steering arm is connected to the right tie rod through the pin assembly.
[0011] In some embodiments, the connecting block is provided with a tapered hole penetrating its top and bottom surfaces, and the lower part of the front suspension is tightly inserted into the tapered hole from top to bottom; the front and rear side mounting surfaces of the connecting block have the same structural shape, any side mounting surface can be equipped with the steering arm, and the two side mounting surfaces are at equal distances from the center plane where the axis of the tapered hole is located.
[0012] In some embodiments, a groove penetrating the top and bottom surfaces of the connecting block is provided at the center of the front and rear side mounting surfaces, and a plurality of threaded holes symmetrically arranged vertically and horizontally are provided on the side mounting surfaces on both sides of the groove.
[0013] In some embodiments, the steering arm is an integrated structure, comprising:
[0014] The first section structure has a step structure that matches the two side mounting surfaces of the steering knuckle, and a plurality of through holes symmetrically arranged vertically and horizontally are provided on both sides of the step structure, each through hole corresponding to a threaded hole on the connecting block;
[0015] The second section structure has two hinge holes. The hinge hole close to the first section structure is used to be hinged to the steering cylinder by inserting the pin assembly; the hinge hole far away from the first section structure is used to be hinged to the transverse tie rod by inserting the pin assembly.
[0016] In some embodiments, a threaded seat and a fastener assembled on the threaded seat are welded to the top and bottom surfaces of the second section structure near each hinge hole, and the circumferential rotation and axial movement of the pin shaft assembly are restricted by the cooperation between the threaded seat and the fastener.
[0017] In some embodiments, the pin shaft assembly is composed of a stepped shaft and a fixed plate welded together, and the fixed plate is provided with a U-shaped groove that matches the outer circle of the threaded seat on the end face of the steering arm.
[0018] In some embodiments, the connection block is provided with two side mounting surfaces, one of which is used for mounting the steering arm, and the other is used for mounting the cover plate assembly.
[0019] In some embodiments, the cover plate assembly is a flat plate structure as a whole, and is provided with through holes coaxially arranged with part or all of the threaded holes on the side mounting surface and a mounting seat for fixing the wiring harness.
[0020] In the second aspect, the utility model provides a steering assembly, including a left wheel assembly, a right wheel assembly, a left front suspension, a right front suspension, a left tie rod, a right tie rod, a steering rocker arm and two of the above-mentioned modular steering connection structures; one of the modular steering connection structures is connected to the left wheel assembly, the left front suspension, and the left tie rod, and the other modular steering connection structure is connected to the right wheel assembly, the right front suspension, and the right tie rod, and the steering rocker arm is connected to the left tie rod and the right tie rod.
[0021] In a third aspect, the utility model provides a mining dump truck equipped with the above-mentioned steering assembly.
[0022] Compared with the prior art, the utility model has the following beneficial effects:
[0023] The utility model adopts a modularly designed steering knuckle and steering arm, which can realize the universal and interchangeable steering connection structures of the left and right front wheels of the mining dump truck, reduce the types of parts, molds, tools and fixtures, and reduce the production, management and spare parts costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] 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.
[0025] In the attached picture:
[0026] Figure 1 It is a schematic diagram of the steering assembly of the utility model;
[0027] Figure 2 This is a schematic diagram of the modular steering connection structure of the utility model;
[0028] Figure 3 Schematic diagrams of the front and rear sides of the steering knuckle of the present invention (a is the front side diagram, b is the rear side diagram);
[0029] Figure 4 Schematic diagrams of the front and rear sides of the steering arm of the utility model (a is the front side diagram, b is the rear side diagram);
[0030] Figure 5 It is a schematic diagram of the cover plate assembly of the utility model;
[0031] Figure 6 It is a schematic diagram of the pin assembly of the utility model.
[0032] Figures: 1. Left wheel assembly; 2. Left front suspension; 3. Right front suspension; 4. Right wheel assembly; 5. Left tie rod; 6. Steering rocker arm; 7. Right tie rod; 10. Steering knuckle; 101. Tapered hole; 102. Groove on first side of steering knuckle; 103. Threaded hole on first side of steering knuckle; 104. Threaded hole on second side of steering knuckle; 105.
[0033] The second side groove of the steering knuckle; 20, the steering arm; 201, the hinge point hole; 202, the steering arm boss; 203, the threaded seat; 204, the through hole; 30, the cover assembly; 301, the cover; 302, the first mounting seat; 303, the second mounting seat; 40, the pin assembly; 401, the step shaft; 402, the fixing plate.
[0034] 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
[0035] 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.
[0036] 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.
[0037] 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.
[0038] like Figure 1 , Figure 2 As shown, a modular steering connection structure includes a steering knuckle 10, a steering arm 20 and a pin assembly 40; the steering knuckle 10 is an integrated structure, including a stepped shaft and a flange connected to the wheel assembly and a connecting block connected to the front suspension; one end face of the steering arm 20 is connected to the side mounting surface of the connecting block; the pin assembly 40 is used to hinge the tie rod and the steering arm 20 together; when the wheel assembly is a left wheel assembly, the steering knuckle 10 is connected to the left wheel assembly 1 and the left front suspension 2, the steering arm 20 is connected to a side mounting surface of the connecting block, and the steering arm 20 is connected to the left tie rod 5 through the pin assembly 40; when the wheel assembly is a right wheel assembly 4, the steering knuckle 10 is horizontally rotated 180 degrees, the steering knuckle 10 is connected to the right wheel assembly 4 and the right front suspension 3, the steering arm 20 is horizontally flipped 180 degrees and connected to the other side mounting surface of the connecting block, and the steering arm 20 is connected to the right tie rod 7 through the pin assembly 40.
[0039] From the above, we can see that the steering knuckle and steering arm adopt a modular design, which is universal for left and right wheels, improves interchangeability, reduces the types of parts, molds, tools and fixtures, and reduces the costs of production, management, and spare parts.
[0040] The above-mentioned connection block is further described below.
[0041] like Figure 3 As shown, a tapered hole 101 is provided on the connecting block which passes through the top and bottom surfaces thereof, and the lower part of the front suspension is tightly inserted into the tapered hole 101 from top to bottom; the structural shapes on the front and rear side mounting surfaces of the connecting block are the same, and the steering arm 20 can be assembled on any side mounting surface, and the distances from the two side mounting surfaces to the center plane where the axis of the tapered hole 101 is located are equal, ensuring that the connection dimensions of the steering knuckle 10 installed on the left and right wheels are consistent.
[0042] According to a further solution, a groove running through the top and bottom surfaces of the connecting block is provided at the center position on the front and rear side mounting surfaces of the connecting block (i.e., the first side groove 102 of the steering knuckle and the second side groove 105 of the steering knuckle in the figure), and a plurality of first side threaded holes 103 of the steering knuckle are provided on the side mounting surfaces on both sides of the first side groove 102 of the steering knuckle, and a plurality of second side threaded holes 104 of the steering knuckle are provided on the side mounting surfaces on both sides of the second side groove 105 of the steering knuckle, which are symmetrically arranged up and down and left and right.
[0043] In a preferred solution, a rectangular cross-section groove is provided at the center of the front and rear side mounting surfaces of the connecting block, which runs through the top and bottom surfaces thereof. Of course, the rectangular cross-section groove is only an example of a preferred structure, and other structural forms with the same function are within the scope of the utility model.
[0044] The above-mentioned steering arm is further described below.
[0045] like Figure 4 As shown, the steering arm 20 is an integrated structure, including a first section structure and a second section structure; the first section structure has a step structure (i.e., the steering arm boss 202 in the figure) that matches the two side mounting surfaces of the steering knuckle, and a plurality of through holes 204 symmetrically arranged up and down and left and right are provided on both sides of the step structure, each through hole 204 corresponds to a threaded hole on the connecting block, and is connected by bolts; the second section structure has two hinge holes 201, the hinge hole 201 close to the first section structure is used for hinge connection with the steering cylinder by inserting the pin assembly 40; the hinge hole 201 away from the first section structure is used for hinge connection with the tie rod by inserting the pin assembly 40.
[0046] It should be noted that the shape of the steering arm boss 202 is determined according to the shape of the groove on the connecting block. The steering arm boss 202 is inserted into the groove, and the two are completely fitted together to complete the installation and positioning functions of the two.
[0047] Further solutions, such as Figure 4 As shown, the top and bottom surfaces of the second section structure are welded with a threaded seat 203 and a fastener assembled on the threaded seat 203 near each hinge hole 201, and the threaded seat 203 and the fastener cooperate to limit the circumferential rotation and axial movement of the pin shaft assembly 40.
[0048] The above-mentioned pin assembly is further described below.
[0049] like Figure 6 As shown, the pin assembly 40 is composed of a stepped shaft 401 and a fixed plate 402 welded together, and the fixed plate 402 is provided with a U-shaped groove that matches the outer circle of the threaded seat 203 on the end surface of the steering arm 20.
[0050] Further solutions: Figure 5 As shown, the connection block is provided with two side mounting surfaces, one of which is used to assemble the steering arm 20, and the other side mounting surface is used to assemble the cover assembly 30. The cover assembly 30 is a flat plate structure as a whole, consisting of a cover 301 and a first mounting seat 302 and a second mounting seat 303 welded on the cover 301 for fixing the wiring harness; the cover 301 is provided with a through hole coaxially arranged with part or all of the threaded holes on the side mounting surface, and the cover assembly 300 is fixed to the connection block by bolts.
[0051] like Figure 1 As shown, the utility model also provides a steering assembly, including a left wheel assembly 1, a right wheel assembly 4, a left front suspension 2, a right front suspension 3, a left tie rod 5, a right tie rod 7, a steering rocker arm 6 and two of the above-mentioned modular steering connection structures; one of the modular steering connection structures is connected to the left wheel assembly 1, the left front suspension 2, and the left tie rod 5, and the other modular steering connection structure is connected to the right wheel assembly 4, the right front suspension 3, and the right tie rod 7, and the steering rocker arm 6 is connected to the left tie rod 5 and the right tie rod 7.
[0052] The utility model also provides a mining dump truck, which is equipped with the steering assembly.
[0053] In summary, the utility model adopts a modularly designed steering knuckle and steering arm, which can realize the universal and interchangeable steering connection structure of the left and right front wheels of a mining dump truck, reduce the types of parts, molds, tools and fixtures, and reduce the costs of production, management, and spare parts.
[0054] 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.
[0055] 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.
[0056] 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 modular steering connection structure, characterized in that: include: Steering knuckle, including a stepped shaft and flange connected to the wheel assembly and a connecting block connected to the front suspension; A steering arm, one end surface of which is connected to the side mounting surface of the connecting block; A pin assembly, used for hinge-connecting the tie rod and the steering arm; When the wheel assembly is a left wheel assembly, the steering knuckle is connected to the left wheel assembly and the left front suspension, the steering arm is connected to a mounting surface of one side of the connecting block, and the steering arm is connected to the left tie rod through a pin assembly; When the wheel assembly becomes the right wheel assembly, the steering knuckle rotates horizontally 180 degrees, the steering knuckle is connected to the right wheel assembly and the right front suspension, the steering arm flips horizontally 180 degrees and is connected to the other side mounting surface of the connecting block, and the steering arm is connected to the right tie rod through the pin assembly.
2. A modular steering connection structure according to claim 1, characterized in that: The connecting block is provided with a tapered hole penetrating the top and bottom surfaces thereof, and the lower portion of the front suspension is tightly inserted into the tapered hole from top to bottom; The front and rear side mounting surfaces of the connection block have the same structural shape, any side mounting surface can be equipped with the steering arm, and the distances from the two side mounting surfaces to the center plane where the axis of the tapered hole is located are equal.
3. A modular steering connection structure according to claim 2, characterized in that: A groove penetrating the top and bottom surfaces is provided at the center of the front and rear side mounting surfaces of the connection block, and a plurality of threaded holes symmetrically arranged vertically and horizontally are provided on the side mounting surfaces on both sides of the groove.
4. A modular steering connection structure according to claim 1, characterized in that: The steering arm is an integrated structure, comprising: The first section structure has a step structure that matches the two side mounting surfaces of the steering knuckle, and a plurality of through holes symmetrically arranged vertically and horizontally are provided on both sides of the step structure, each through hole corresponding to a threaded hole on the connecting block; The second section structure has two hinge holes. The hinge hole close to the first section structure is used to be hinged to the steering cylinder by inserting the pin assembly; the hinge hole far away from the first section structure is used to be hinged to the transverse tie rod by inserting the pin assembly.
5. A modular steering connection structure according to claim 4, characterized in that: A threaded seat and a fastener assembled on the threaded seat are welded to the top and bottom surfaces of the second section structure near each hinge hole, and the circumferential rotation and axial movement of the pin shaft assembly are restricted by the cooperation between the threaded seat and the fastener.
6. A modular steering connection structure according to claim 1, characterized in that: The pin shaft assembly is formed by welding a stepped shaft and a fixing plate, and the fixing plate is provided with a U-shaped groove which matches the outer circle of the threaded seat on the end surface of the steering arm.
7. A modular steering connection structure according to claim 1, characterized in that: The connecting block is provided with two side mounting surfaces, one of which is used for mounting the steering arm, and the other is used for mounting the cover plate assembly.
8. A modular steering connection structure according to claim 7, characterized in that: The cover plate assembly is a flat plate structure as a whole, and is provided with through holes coaxially arranged with part or all of the threaded holes on the side mounting surface and a mounting seat for fixing the wiring harness.
9. A steering assembly, characterized in that: It comprises a left wheel assembly, a right wheel assembly, a left front suspension, a right front suspension, a left tie rod, a right tie rod, a steering rocker arm and two modular steering connection structures according to any one of claims 1 to 8; One of the modular steering connection structures is connected to the left wheel assembly, the left front suspension, and the left tie rod, and the other modular steering connection structure is connected to the right wheel assembly, the right front suspension, and the right tie rod. The steering rocker arm is connected to the left tie rod and the right tie rod.
10. A mining dump truck, characterized in that: The steering assembly according to claim 9 is installed.