AU2019408144A1 - Three-link steering mechanism of mining dump truck - Google Patents
Three-link steering mechanism of mining dump truck Download PDFInfo
- Publication number
- AU2019408144A1 AU2019408144A1 AU2019408144A AU2019408144A AU2019408144A1 AU 2019408144 A1 AU2019408144 A1 AU 2019408144A1 AU 2019408144 A AU2019408144 A AU 2019408144A AU 2019408144 A AU2019408144 A AU 2019408144A AU 2019408144 A1 AU2019408144 A1 AU 2019408144A1
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- AU
- Australia
- Prior art keywords
- steering
- hole
- connecting end
- bearing
- tie rod
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/061—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle provided with effort, steering lock, or end-of-stroke limiters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/20—Links, e.g. track rods
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
Abstract
A three-bar linkage steering mechanism of a mining dumper, comprising: steering arms (1), a transverse pull rod (2), steering hydraulic oil cylinders (3), bearings (4), locating pins (5), and a bolt (6); wherein two steering arms (1) are respectively movably connected to both ends of the transverse pull rod (2), and two steering hydraulic oil cylinders (3) are respectively movably connected to the steering arms (1). The mechanism avoids a problem of interfering with an engine and other parts, and a possibility is provided for additionally mounting a large-sized engine on the mining dumper to increase the load.
Description
[0001] This application is based upon and claims priority to Chinese Patent Application No. 201811542608.1, filed December 17, 2018, and entitled "THREE-LINK STEERING MECHANISM OF MINING DUMP TRUCK", the entire contents of which are
incorporated herein by reference.
[0002] The present disclosure relates to a mining dump truck, and more particularly, to a three-link steering mechanism of a mining dump truck.
[0003] Mining dump trucks belong to off-highway dump trucks, which are mainly used for transporting ore and mineral materials in large open-pit mines. The mining dump trucks mainly consist of a frame, an engine, a braking device, a walking system and a steering system. The steering system is an important part of the mining dump trucks, a reasonable design of a spatial arrangement of a steering mechanism has an important influence on avoiding interference with other components such as the engine and long-life service of tires.
[0004] At present, the mining dump trucks, especially those with non-independent suspended front axles, mostly adopt steering arms symmetrically provided along the front axle to separate a steering cylinder and a tie rod from the front and rear, thereby making the structure compact and saving space. However, some components are located in front of the front axle to balance the spatial arrangement of the tie rod of the front axle and components such as the engine. At present, demands for the mining dump trucks are developing towards large tonnage, which leads to the need to install a larger engine. When the engine is enlarged or the placement position is changed, sufficient space must be left in the front of the front axle, and thus, the steering mechanism of the non-independent suspended front axles of the dump trucks needs to adopt a new structure to avoid the above-mentioned problems and leave more space for the installation of the engine under the premise of ensuring the steering function.
[0005] The technical problem solved by the present disclosure is to provide a three-link steering mechanism of a mining dump truck, which avoids the problem of interference with an engine and other components, and makes it possible for the mining dump truck to install a large engine to increase loads.
[0006] Technical solutions are as follows.
[00071 The three-link steering mechanism of the mining dump truck includes two steering arms, a tie rod, two steering hydraulic cylinders, bearings, positioning pins and bolts, wherein the two steering arms are movably connected to both ends of the tie rod respectively, and the two steering hydraulic cylinders are movably connected to the two steering arms respectively; each of the two steering arms is provided with a first bearing hole, a second bearing hole and a steering connection through hole, wherein the first bearing hole and the steering connection through hole are located at end positions of the steering arm respectively, and the second bearing hole is located between the first bearing hole and the steering connection through hole; the both ends of the tie rod are provided with first fork holes respectively, one of the bearings is installed in the first bearing hole, one of positioning pins is installed in the bearing and the first fork hole to movably connect a tie rod connecting end with the steering arm; an outer side of the steering connection through hole is provided with fixing holes, one or more of the bolts are installed in one or more of the corresponding fixing holes; a rear end of each of the two steering hydraulic cylinders is provided with a hydraulic cylinder connecting end, and the hydraulic cylinder connecting end is provided with a second fork hole; one end of each of two telescopic rods is installed in the steering hydraulic cylinder, the other end is provided with a telescopic rod connecting end, and the telescopic rod connecting end is provided with a third fork hole; one of the bearings is installed in the second bearing hole, one of the positioning pins is installed in the bearing and the second fork hole to movably connect the hydraulic cylinder connecting end with the steering arm.
[00081 Further, the both ends of the tie rod are provided with tie rod connecting ends respectively, the first fork hole is provided on the tie rod connecting end, the tie rod connecting end is a U-shaped bayonet, the first fork hole is provided at both sides of the U-shaped bayonet, and the first bearing hole is located in the U-shaped bayonet.
[0009] Further, the hydraulic cylinder connecting end and the telescopic rod connecting end are U-shaped bayonet, the second fork hole is provided at both sides of the U-shaped bayonet of the hydraulic cylinder connecting end, the second bearing hole is located in the U-shaped bayonet, and the third fork hole is provided at both sides of the U-shaped bayonet of the telescopic rod connecting end.
[0010] Further, the telescopic rod connecting end is connected with a non-independent suspended front axle through the positioning pin, the third fork hole and the bearing.
[0011] Further, one or more of the bolts pass through one or more of the corresponding fixing holes to connect the steering arm with the steering shaft.
[0012] The technical effects of the present disclosure are as follows.
[00131 All parts of the steering mechanism avoid a front area of the front axle, thereby avoiding the problem of interference with the engine and other components, making it possible for the mining dump truck to install the large engine to increase the loads, expanding a space for maintaining the large engine and providing convenience for workers to operate.
[0014] Fig. 1 is an exploded structure diagram of a three-link steering mechanism of a mining dump truck according to the present disclosure; and
[0015] Fig. 2 is a use state diagram of a three-link steering mechanism of a mining dump truck according to the present disclosure.
[0016] Technical solutions of the present disclosure will be described in detail with reference to example embodiments. However, the example embodiments can be implemented in various forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that the present disclosure will be more comprehensive and complete, and will fully convey the concept of the example embodiments to those skilled in the art.
[00171 Fig. 1 is an exploded structure diagram of a three-link steering mechanism of a mining dump truck according to the present disclosure; and Fig. 2 is a use state diagram of a three-link steering mechanism of a mining dump truck according to the present disclosure.
[0018] The three-link steering mechanism of the mining dump truck includes two steering arms 1, a tie rod 2, two steering hydraulic cylinders 3, bearings 4, positioning pins 5 and bolts 6.
[0019] The two steering arms 1 are respectively connected to both ends of the tie rod 2, and the two steering hydraulic cylinders 3 are respectively connected to the two steering arms 1. Each of the two steering arms 1 is provided with a first bearing hole 11, a second bearing hole 12 and a steering connection through hole 13, wherein the first bearing hole 11 and the steering connection through hole 13 are respectively located at end positions of the steering arm 1, and the second bearing hole 12 is located between the first bearing hole 11 and the steering connection through hole 13. The both ends of the tie rod 2 are provided with tie rod connecting ends 21, and each of the tie rod connecting ends 21 is provided with a first fork hole. One of the bearings 4 is installed in the first bearing hole 11, and one of the positioning pins 5 is installed in the bearing 4 and the first fork hole to connect the tie rod connecting end 21 with the steering arm 1, so that the tie rod 2 can stably and reliably rotate around the first bearing hole 11. The steering connection through hole 13 is used to connect with a steering shaft of a non-independent suspended front axle 7, and an outer side of the steering connection through hole 13 is provided with fixing holes 14. The steering connection through hole 13 is sleeved on the steering shaft, and one or more of the bolts 6 pass through one or more of the corresponding fixing holes 14 to connect the steering arm 1 with the steering shaft, which is a rigid connection.
[0020] The positioning of the first bearing hole 11 and the second bearing hole 12 on the steering arm 1 for connecting the tie rod 2 and the steering hydraulic cylinder 3 is optimized by algorithms, such as a quadratic programming method and a Gaussian gradient method, to ensure that a front wheel positioning relationship meets Ackerman steering geometry and avoid tire wear.
[0021] The tie rod connecting end 21 is a U-shaped bayonet, the first fork hole is provided at both sides of the U-shaped bayonet, and the first bearing hole 11 is located in the U-shaped bayonet.
[0022] A rear end of each of the two steering hydraulic cylinders 3 is provided with a hydraulic cylinder connecting end 31, and the hydraulic cylinder connecting end 31 is provided with a second fork hole; one end of each of two telescopic rods 32 is installed in the steering hydraulic cylinder 3, the other end of the telescopic rod 32 is provided with a telescopic rod connecting end 33, and the telescopic rod connecting end 33 is provided with a third fork hole. One of the bearings 4 is installed in the second bearing hole 12, one of the positioning pins 5 is installed in the bearing 4 and the second fork hole to movably connect the hydraulic cylinder connecting end 31 with the steering arm 1. The telescopic rod connecting end 33 is connected with a non-independent suspended front axle 7 through the positioning pin 5, the third fork hole and the bearing 4. The steering hydraulic cylinder 3 rotates around the second bearing hole 12.
[00231 The hydraulic cylinder connecting end 31 and the telescopic rod connecting end 33 are U-shaped bayonet, the second fork hole and the third fork hole are provided at both sides of the U-shaped bayonet, and the second bearing hole 12 is located in the U-shaped bayonet.
[0024] Front wheels are installed on both sides of the non-independent suspended front axle 7, and the steering hydraulic cylinder 3 pushes the telescopic rod 32 to expand and contract, thereby driving the front wheels to rotate around the steering shaft.
[0025] The three-link steering mechanism of the mining dump truck has a left-right symmetrical structure, and all components face the bottom and rear side of the non-independent suspended front axle 7. At the lower part of the front wheels, the steering arm 1 is fixed by the bolts 6. The bearings 4 are respectively installed in the first bearing hole 11 and the second bearing hole 12 of the steering arm 1. The first fork hole at one end of the tie rod 2 is aligned with the outermost first bearing hole 11 of the steering arm 1. The steering arm 1 is inserted into the U-shaped bayonet of the tie rod connecting end 21 and the positioning pin 5 to ensure that the bearing 4 and the tie rod 2 will not move up and down, and the rotation of the tie rod 2 is realized by the rotation of the bearing 4 there. Similarly, the telescopic rod 32 is connected to the non-independent suspended front axle 7 through the bearing 4 and the positioning pin 5, and the hydraulic cylinder connecting end 31 at the other end is connected to the second bearing hole in the middle of the steering arm 1 to ensure that the bearing 4 and the steering hydraulic cylinder 3 will not move up and down, and the rotation of the steering hydraulic cylinder 3 relative to the steering arm 1 is realized by the rotation of the bearing 4 there.
[00261 The working principle of the present disclosure is as follows: the three-link steering mechanism has two steering arms 1 (i.e., a left steering arm 1 and a right steering arm 1) and the tie rod 2 between the two steering arms 1, driven by the steering hydraulic cylinder 3, the steering arm 1 drives the left and right front wheels to swing according to a geometric relationship specified by Ackermann geometric relationship.
[00271 It should be understood that the foregoing descriptions are merely specific implementation manners of the present disclosure, but are not intended to limit the protection scope of the present disclosure. Any variation or replacement readily figured out by a person skilled in the art within the technical scope disclosed in the present disclosure shall fall within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.
[00281 All parts of the steering mechanism avoid a front area of the front axle, thereby avoiding the problem of interference with the engine and other components, making it possible for the mining dump truck to install the large engine to increase the loads, expanding a space for maintaining the large engine and providing convenience for workers to operate.
Claims (5)
1. A three-link steering mechanism of a mining dump truck, comprising: two steering arms, a tie rod, two steering hydraulic cylinders, bearings, positioning pins and bolts, wherein the two steering arms are movably connected to both ends of the tie rod respectively, and the two steering hydraulic cylinders are movably connected to the two steering arms respectively; each of the two steering arms is provided with a first bearing hole, a second bearing hole and a steering connection through hole, wherein the first bearing hole and the steering connection through hole are located at end positions of the steering arm respectively, and the second bearing hole is located between the first bearing hole and the steering connection through hole; the both ends of the tie rod are provided with first fork holes respectively, one of the bearings is installed in the first bearing hole, one of positioning pins is installed in the bearing and the first fork hole to movably connect a tie rod connecting end with the steering arm; an outer side of the steering connection through hole is provided with fixing holes, one or more of the bolts are installed in one or more of the corresponding fixing holes; a rear end of each of the two steering hydraulic cylinders is provided with a hydraulic cylinder connecting end, and the hydraulic cylinder connecting end is provided with a second fork hole; one end of each of two telescopic rods is installed in the steering hydraulic cylinder, the other end is provided with a telescopic rod connecting end, and the telescopic rod connecting end is provided with a third fork hole; one of the bearings is installed in the second bearing hole, one of the positioning pins is installed in the bearing and the second fork hole to movably connect the hydraulic cylinder connecting end with the steering arm.
2. The three-link steering mechanism of the mining dump truck according to claim 1, wherein the both ends of the tie rod are provided with tie rod connecting ends respectively, the first fork hole is provided on the tie rod connecting end, the tie rod connecting end is a U-shaped bayonet, the first fork hole is provided at both sides of the U-shaped bayonet, and the first bearing hole is located in the U-shaped bayonet.
3. The three-link steering mechanism of the mining dump truck according to claim 1, wherein the hydraulic cylinder connecting end and the telescopic rod connecting end are U-shaped bayonet, the second fork hole is provided at both sides of the U-shaped bayonet of the hydraulic cylinder connecting end, the second bearing hole is located in the U-shaped bayonet, and the third fork hole is provided at both sides of the U-shaped bayonet of the telescopic rod connecting end.
4. The three-link steering mechanism of the mining dump truck according to claim 1, wherein the telescopic rod connecting end is connected with a non-independent suspended front axle through the positioning pin, the third fork hole and the bearing.
5. The three-link steering mechanism of the mining dump truck according to claim 1, wherein one or more of the bolts pass through one or more of the corresponding fixing holes to connect the steering arm with the steering shaft.
Fig. 1
Fig. 2
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811542608.1A CN109572809A (en) | 2018-12-17 | 2018-12-17 | Quarry tipper three-link steering mechanism |
| CN201811542608.1 | 2018-12-17 | ||
| PCT/CN2019/123296 WO2020125426A1 (en) | 2018-12-17 | 2019-12-05 | Three-bar linkage steering mechanism of mining dumper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2019408144A1 true AU2019408144A1 (en) | 2020-11-26 |
| AU2019408144B2 AU2019408144B2 (en) | 2022-08-18 |
Family
ID=65930478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2019408144A Active AU2019408144B2 (en) | 2018-12-17 | 2019-12-05 | Three-link steering mechanism of mining dump truck |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN109572809A (en) |
| AU (1) | AU2019408144B2 (en) |
| WO (1) | WO2020125426A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109572809A (en) * | 2018-12-17 | 2019-04-05 | 内蒙古北方重型汽车股份有限公司 | Quarry tipper three-link steering mechanism |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7788993B2 (en) * | 2008-03-01 | 2010-09-07 | The Boeing Company | Tie rod assembly |
| CN202054047U (en) * | 2011-04-25 | 2011-11-30 | 泉州市苏合建桥设备有限公司 | Steering axle of beam transporting vehicle |
| CN202641841U (en) * | 2012-06-12 | 2013-01-02 | 福建省晋江市德盛机械有限公司 | Steering driving assembly of rear axle rim tire |
| CN203094179U (en) * | 2012-11-29 | 2013-07-31 | 重庆卡福汽车制动转向系统有限公司 | Tie rod with U-shaped connectors |
| CN203472987U (en) * | 2013-05-29 | 2014-03-12 | 深圳市达航工业有限公司 | Self-control front axle device of platform car |
| CN204548222U (en) * | 2015-03-03 | 2015-08-12 | 郑之松 | The propons of bridge transport vehicle |
| CN104742966B (en) * | 2015-03-17 | 2017-03-01 | 福州大学 | A kind of hydromechanical control servo device turning to for multiple-axle vehicle pure rolling |
| US9650071B2 (en) * | 2015-05-12 | 2017-05-16 | Cives Corporation | Bi-directional towed snowplow and method of plowing |
| CN204937220U (en) * | 2015-08-06 | 2016-01-06 | 中冶京诚（湘潭）矿山装备有限公司 | A kind of quarry tipper and tierod assembly thereof |
| CN205149974U (en) * | 2015-12-02 | 2016-04-13 | 上汽依维柯红岩商用车有限公司 | Heavy -duty car power -assisted steering structure |
| CN105329315A (en) * | 2015-12-15 | 2016-02-17 | 北奔重型汽车重庆有限公司 | Front axle provided with double rear steering actuation cylinders and used for wide-body truck |
| CN206297603U (en) * | 2016-12-29 | 2017-07-04 | 山东正阳机械有限公司 | Trailer fluid-link steering bridge |
| CN206691191U (en) * | 2017-03-13 | 2017-12-01 | 陕西通运重工有限公司 | Steering for off-highway quarry tipper |
| CN206664691U (en) * | 2017-04-24 | 2017-11-24 | 中铁机械装备研究设计院(成都)有限公司 | Gun carriage steering after a kind of T beam transportation vehicle theoretical based on Ackermam |
| CN107792174B (en) * | 2017-10-31 | 2020-10-23 | 广州电力机车有限公司 | Disconnected steering mechanism of dumper and design method thereof |
| CN109572809A (en) * | 2018-12-17 | 2019-04-05 | 内蒙古北方重型汽车股份有限公司 | Quarry tipper three-link steering mechanism |
| CN209634556U (en) * | 2018-12-17 | 2019-11-15 | 内蒙古北方重型汽车股份有限公司 | Quarry tipper three-link steering mechanism |
-
2018
- 2018-12-17 CN CN201811542608.1A patent/CN109572809A/en active Pending
-
2019
- 2019-12-05 WO PCT/CN2019/123296 patent/WO2020125426A1/en active Application Filing
- 2019-12-05 AU AU2019408144A patent/AU2019408144B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109572809A (en) | 2019-04-05 |
| WO2020125426A1 (en) | 2020-06-25 |
| AU2019408144B2 (en) | 2022-08-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| DA3 | Amendments made section 104 |
Free format text: THE NATURE OF THE AMENDMENT IS: AMEND THE INVENTION TITLE TO READ THREE-LINK STEERING MECHANISM OF MINING DUMP TRUCK |
|
| FGA | Letters patent sealed or granted (standard patent) |