CN113071279B - Front suspension system of unmanned mining vehicle - Google Patents
Front suspension system of unmanned mining vehicle Download PDFInfo
- Publication number
- CN113071279B CN113071279B CN202110354409.3A CN202110354409A CN113071279B CN 113071279 B CN113071279 B CN 113071279B CN 202110354409 A CN202110354409 A CN 202110354409A CN 113071279 B CN113071279 B CN 113071279B
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- frame
- end fixing
- thrust
- fixing frame
- thrust safety
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/26—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs
- B60G11/265—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs hydraulic springs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/10—Type of spring
- B60G2202/15—Fluid spring
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention discloses a front suspension system of an unmanned mining vehicle, which comprises a front shaft 5, a thrust safety frame 3 connected with the front shaft, an A-shaped frame 1, an oil-gas spring 2, a front end fixing frame 6 and a rear end fixing frame 4, wherein the thrust safety frame 3 is connected with the front shaft; a rigid front supporting plate 601 is arranged on the front end fixing frame 6, a rigid rear supporting plate 401 is arranged on the rear end fixing frame 4, and the front supporting plate 601 and the rear supporting plate 401 are supported on a longitudinal beam of the supporting frame 8; the connection point of the thrust safety frame 3 and the front end fixing frame 6 and the connection point of the thrust safety frame 3 and the rear end fixing frame 4 are both positioned below the front supporting plate 601 and the rear supporting plate 401; the longitudinal height of the rigid connection point 9 between the thrust safety frame 3 and the front shaft 5 is lower than the height of the two ends of the thrust safety frame 3, when the hydro-pneumatic spring 2 fails, the front suspension system forms a stable triangular structure, the distortion and deformation of a frame of a mining vehicle are avoided, the accident vehicle can move in a short distance, and the repair is convenient for returning to a repair shop for maintenance.
Description
Technical Field
The invention relates to the technical field of suspension mechanisms of mining vehicles, in particular to a novel front suspension system of an unmanned mining vehicle.
Background
In mining, metallurgy, building, chemical industry and other industries, mining vehicles are important earth and stone carriers, and the mining vehicles have the working characteristics of short distance and heavy bearing, come and go to mining points and ore unloading points, increase the volume of a carriage as much as possible and widen and increase the overall dimension of the whole vehicle in order to improve the transportation volume of each vehicle, and because the load tonnage is large, roads are multi-slope, the area of loading and unloading sites in mining areas is narrow, and the vehicles need to turn frequently and back. In order to keep the maneuverability flexible, the mining vehicle usually strives to shorten the wheelbase and the total length so as to reduce the turning radius and the backing times, and the model with the short wheelbase and the large mass is more suitable for installing and using the hydro-pneumatic spring suspension because the mining vehicle does not have corresponding space for installing the traditional leaf spring. The hydro-pneumatic spring can be an independent suspension or a non-independent suspension, takes gas as an elastic medium and liquid as a force transmission medium, has good buffering capacity and vibration damping function, and can adjust the height of the frame.
For example, in fig. 1, a utility model patent with publication number CN202071656U discloses a suspension device for a mining vehicle, including: the balance arm is in a V shape, the ridge part of the balance arm is hinged on the frame between the double rear axles, the two hydro-pneumatic springs are arranged between the double rear axles, and the outer cylinder barrel of the hydro-pneumatic spring is tightly connected with the frame; the two elastic beams are respectively positioned at two sides of the balance arm; the balance bracket is fixed on the frame between the double rear axles; the two upper thrust rods are respectively positioned at two sides of the balance bracket; two ends of each upper thrust rod are respectively hinged to the second straight section of the elastic beam on the same side and the upper part of the balance bracket; the two lower thrust rods are respectively positioned at two sides of the balance bracket, and two ends of each lower thrust rod are respectively hinged to the axle at the same side and the lower part of the balance bracket; two transverse thrust rods extend along the direction of the axle, and two ends of each transverse thrust rod are respectively hinged between the frame and the axle bag bracket. The utility model discloses a replaced easy cracked leaf spring with hydro-pneumatic spring, reduced the maintenance frequency, improved the reliability of whole car quality. However, once the hydro-pneumatic spring has an accident of oil leakage and the like, which leads to the failure of the hydro-pneumatic spring, the whole vehicle can be seriously inclined, the frame of the mining vehicle is distorted and deformed, the accident vehicle can not be moved in a small range, and the accident vehicle is inconvenient to return to a repair shop for maintenance.
Disclosure of Invention
The invention aims to provide a front suspension system of an unmanned mining vehicle, which solves the problems that in the prior art, when an oil-gas spring in a suspension device of a heavy vehicle such as a mining vehicle fails, the suspension device cannot move in a short distance and is inconvenient for accident vehicles to return to a factory for repair.
The invention provides a front suspension system of an unmanned mining vehicle, which comprises a front shaft 5, a thrust safety frame 3 connected with the front shaft, an A-shaped frame 1, an oil-gas spring 2, a front end fixing frame 6 and a rear end fixing frame 4, wherein the thrust safety frame 3 is connected with the front shaft; the hydro-pneumatic springs 2 are arranged on two sides of the A-shaped frame 1, one ends of the hydro-pneumatic springs 2 are connected with the A-shaped frame 1, and the other ends of the hydro-pneumatic springs 2 are connected with the front shaft 5; one end of the thrust safety frame 3 is rotatably connected with the front end fixing frame 6, and the other end of the thrust safety frame is movably connected with the rear end fixing frame 4 up and down; the front end fixing frame 6 and the rear end fixing frame 4 are fixedly connected with a frame 8 of the mining vehicle at two ends of the thrust safety frame 3 respectively; a rigid front supporting plate 601 is arranged on the front end fixing frame 6, a rigid rear supporting plate 401 is arranged on the rear end fixing frame 4, and the front supporting plate 601 and the rear supporting plate 401 are supported on a longitudinal beam of the supporting frame 8; the connection point of the thrust safety frame 3 and the front end fixing frame 6 and the connection point of the thrust safety frame 3 and the rear end fixing frame 4 are both positioned below the front supporting plate 601 and the rear supporting plate 401; the longitudinal height of the rigid connection point 9 of the thrust safety frame 3 and the front shaft 5 is lower than the height of the two ends of the thrust safety frame 3.
On the basis of the technical scheme, the invention can be further improved as follows:
further, the thrust safety frame 3 is a folded plate type with two high ends and a low middle.
Further, one end of the thrust safety frame 3 and the front end fixing frame 6 are rotatably connected through a pin 7.
Further, the other end of the thrust safety frame 3 is movably connected with the rear end fixing frame 4 up and down through a roller bearing 403, and when the hydro-pneumatic spring 2 fails, the top dead center of the roller bearing 403 contacts with the rear support plate 401 to support the frame 8.
Further, when the hydro-pneumatic spring 2 fails, the front suspension system forms a stable triangular structure between the three points of the pin 7, the rigid support point 9 and the top dead center of the roller bearing 403.
Further, the a-frame 1 is located on the thrust safety frame 3 at a position corresponding to the front axle 5.
Further, the thrust safety racks 3 are a pair arranged left and right.
Further, the two separated feet of the a-frame 1 extend upward in a direction substantially perpendicular to the thrust safety frames 3, and the closed head end of the a-frame 1 is located between the pair of thrust safety frames 3.
Further, the front support plate 601 extends forward and backward from the front end fixing frame 6 in the extending direction of the frame 8, respectively.
Further, the rear support plate 401 extends from the rear end fixing frame 4 in the extending direction of the frame 8.
The invention has the beneficial effects that:
1. the invention provides a front suspension system of an unmanned mining vehicle, and a hydro-pneumatic spring suspension can effectively buffer the impact of an axle on a vehicle frame and improve the reliability, smoothness and average speed of the vehicle.
2. The invention utilizes a triangular rigid structure formed by a suspension system to solve the problem that the frame of a mining vehicle cannot move in a short distance due to the fact that the bearing of the mining vehicle is distorted and deformed when an oil-gas spring in a suspension device of a heavy vehicle such as the mining vehicle fails.
3. The mining vehicle with the front suspension system is more convenient for the accident vehicle to return to a repair shop for maintenance.
Drawings
FIG. 1 is a schematic structural view of a suspension of a mining vehicle in the prior art;
FIG. 2 is a schematic structural diagram of a front suspension of a mining vehicle according to the present invention;
FIG. 3 is a schematic structural view of a front end fixing frame according to the present invention;
FIG. 4 is a schematic structural view of the rear end fixing frame of the present invention;
FIG. 5 is a schematic view of the front suspension support state when the hydro-pneumatic spring fails according to the present invention;
reference numerals: 1A type frame, 2 hydro-pneumatic springs, 3 thrust safety frame, 4 rear end fixed frame, 5 front axles, 6 front end fixed frames, 7 round pin axles, 8 frames, 9 rigid connection points, 401 rear supporting plate, 402 deflector, 403 roller bearing, 601 front supporting plate.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.
As shown in fig. 2, the front suspension system of the unmanned mining vehicle according to the present invention includes a front axle 5, a pair of thrust safety frames 3 connected to the front axle, an a-frame 1, a pair of hydro-pneumatic springs 2 mounted on the a-frame 1, a front end fixed frame 6, and a rear end fixed frame 4.
The front axle 5 is fixedly connected with the front wheels of the vehicle, when the vehicle normally runs, the wheels bump up and down along with the up-and-down fluctuation of the terrain, the front axle 5 also bumps up and down along with the wheels, the thrust safety frame 3 is a flap type safety frame with two high ends and a low middle part, one end of the thrust safety frame 3 is rotatably connected with the front end fixing frame 6, preferably, as shown in fig. 3, one end of the thrust safety frame 3 is rotatably connected with the front end fixing frame 6 through a pin shaft 7, as the thrust safety frame 3 is also simultaneously connected with the front axle 5, when the front axle jumps up and down, the front end of the thrust safety frame 3 rotates up and down along the pin shaft 7 along with the up-and-down fluctuation of the front axle 5, and the function of fixing the front axle (the function is equal to the function of the front axle thrust rod of the existing vehicle in the market) can be achieved when the vehicle starts and brakes. As shown in fig. 4, a roller bearing 403 is provided on the end surface of the rear end fixing frame 4, the other end of the thrust safety frame 3 is connected to the rear end fixing frame 4 via the roller bearing 403, and the roller bearing 403 is capable of reciprocating within the guide limit range of a guide plate 402 attached to the rear end fixing frame 4.
As shown in fig. 2 and 5, the front end fixing frame 6 and the rear end fixing frame 4 are fixedly connected to the frame 8 at two ends of the thrust safety frame 3, respectively. The front end fixing frame 6 extends forwards and backwards along the extending direction of the frame 8 to form two rigid front supporting plates 601 respectively. Accordingly, the rear end fixing frame 4 is provided with a rigid rear support plate 401 along the extending direction of the vehicle frame 8. The front support plate 601 and the rear support plate 401 are supported on longitudinal beams that support the frame 8. One end of the thrust safety frame 3 is rotatably connected with the front end fixing frame 6 through a pin shaft 7, the other end of the thrust safety frame 3 is connected with the rear end fixing frame 4 through the roller bearing 403, and the longitudinal position of the pin shaft 7 on the front end fixing frame 6 and the longitudinal position of the roller bearing 403 on the rear end fixing frame 4 are both positioned below the front support plate 601 and the rear support plate 401.
The pair of thrust safety frames 3 is fixedly connected with the a-frame 1 at a position corresponding to the front axle 5, as shown in fig. 2, two separated feet of the a-frame 1 extend upward in a direction substantially perpendicular to the thrust safety frames 3, and one end of the closed head of the a-frame 1 is located between the two thrust safety frames 3. The pair of hydro-pneumatic springs 2 are respectively arranged on two sides of the A-shaped frame 1, one ends of the hydro-pneumatic springs 2 are connected with the A-shaped frame, and the other ends of the hydro-pneumatic springs 2 are connected with the front shaft 5. As shown in fig. 5, the flap-type thrust safety frame 3 is rigidly connected to the front axle, and the height of the rigid connection point 9 is lower than the height of the two ends of the flap-type thrust safety frame 3, that is, the height of the connection between the thrust safety frame 3 and the pin 7 and the height of the connection between the thrust safety frame 3 and the roller bearing 403 are both higher than the height of the rigid connection point 9.
As shown in fig. 5, when the hydro-pneumatic spring 2 fails, the top dead center of the roller bearing 403 contacts with the rear support plate 401 to support the frame 8, and at this time, a stable triangular structure is formed among the three points of the pin 7, the rigid support point 9 and the top dead center of the roller bearing 403 to support the frame 8, so that the frame 8 of the mining vehicle is prevented from being distorted and deformed, and at this time, the mining vehicle can be moved in a small range, so that the accident vehicle can be conveniently repaired in a repair shop.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (10)
1. A front suspension system of an unmanned mining vehicle comprises a front shaft (5), a thrust safety frame (3) connected with the front shaft, an A-shaped frame (1), an oil-gas spring (2), a front end fixing frame (6) and a rear end fixing frame (4); the hydro-pneumatic springs (2) are arranged on two sides of the A-shaped frame (1), one ends of the hydro-pneumatic springs (2) are connected with the A-shaped frame (1), and the other ends of the hydro-pneumatic springs are connected with the front shaft (5); one end of the thrust safety frame (3) is rotatably connected with the front end fixing frame (6), and the other end of the thrust safety frame is movably connected with the rear end fixing frame (4) up and down; the front end fixing frame (6) and the rear end fixing frame (4) are respectively and fixedly connected with a frame (8) of the mining vehicle at two ends of the thrust safety frame (3); a rigid front supporting plate (601) is arranged on the front end fixing frame (6), a rigid rear supporting plate (401) is arranged on the rear end fixing frame (4), and the front supporting plate (601) and the rear supporting plate (401) are supported on a longitudinal beam of the frame (8); the method is characterized in that: the connection point of the thrust safety frame (3) and the front end fixing frame (6) and the connection point of the thrust safety frame and the rear end fixing frame (4) are both positioned below the front supporting plate and the rear supporting plate (601, 401); the longitudinal height of the rigid connection point (9) of the thrust safety frame (3) and the front shaft (5) is lower than the height of the two ends of the thrust safety frame (3).
2. The system according to claim 1, characterized in that said thrust safety carriage (3) is of the flap type with two high ends and a low middle.
3. System according to claim 1, characterized in that said thrust safety frame (3) is rotatably connected at one end to said front end fixing frame (6) by means of a pin (7).
4. The system according to claim 3, characterized in that the other end of the thrust safety bracket (3) is movably connected with the rear end fixing bracket (4) up and down through a roller bearing (403), and when the hydro-pneumatic spring (2) fails, the top dead center of the roller bearing (403) contacts with the rear support plate (401) to support the vehicle frame (8).
5. The system according to claim 4, characterized in that the front suspension system forms a stable triangular structure between the pin (7), the rigid connection point (9) and the roller bearing (403) top dead center when the hydro-pneumatic spring (2) fails.
6. System according to one of claims 1 to 5, characterized in that the A-frame (1) is located on the thrust safety frame (3) in a position corresponding to the front axle (5).
7. System according to claim 6, characterized in that said thrust safety frame (3) is a pair arranged side to side.
8. System according to claim 7, characterized in that the two separated feet of the A-frame (1) extend upwards in a direction substantially perpendicular to the thrust safety frame (3), the closed head end of the A-frame (1) being located between the pair of thrust safety frames (3).
9. The system according to any of claims 7-8, characterized in that said front support plate (601) extends from said front end mounting (6) forward and backward, respectively, in the direction of extension of said frame (8).
10. System according to claim 9, characterized in that the rear support plate (401) extends from the rear end mounting (4) in the direction of extension of the frame (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110354409.3A CN113071279B (en) | 2021-04-01 | 2021-04-01 | Front suspension system of unmanned mining vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110354409.3A CN113071279B (en) | 2021-04-01 | 2021-04-01 | Front suspension system of unmanned mining vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113071279A CN113071279A (en) | 2021-07-06 |
| CN113071279B true CN113071279B (en) | 2022-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110354409.3A Active CN113071279B (en) | 2021-04-01 | 2021-04-01 | Front suspension system of unmanned mining vehicle |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10324125A (en) * | 1997-05-26 | 1998-12-08 | Isuzu Motors Ltd | Connecting structure for axle case and car body frame |
| CN202071656U (en) * | 2011-05-31 | 2011-12-14 | 中国重汽集团济南动力有限公司 | Suspension device for mining vehicle |
| CN202271801U (en) * | 2011-10-09 | 2012-06-13 | 陕西重型汽车有限公司 | Non-suspended type plate spring and air spring combination type hanger bracket for automobile |
| CN202448706U (en) * | 2012-03-07 | 2012-09-26 | 上汽依维柯红岩商用车有限公司 | Connecting structure for connecting intermediate axle and rear axle on frames |
| CN208411337U (en) * | 2018-04-28 | 2019-01-22 | 许婷婷 | A kind of air spring for automobile suspension and support |
| CN208452729U (en) * | 2018-06-25 | 2019-02-01 | 广州市锐尚展柜制作有限公司 | A kind of lightweight suspension bags seat structure |
| CN208558927U (en) * | 2018-07-05 | 2019-03-01 | 一汽解放汽车有限公司 | A kind of truck composite front air suspension system |
-
2021
- 2021-04-01 CN CN202110354409.3A patent/CN113071279B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10324125A (en) * | 1997-05-26 | 1998-12-08 | Isuzu Motors Ltd | Connecting structure for axle case and car body frame |
| CN202071656U (en) * | 2011-05-31 | 2011-12-14 | 中国重汽集团济南动力有限公司 | Suspension device for mining vehicle |
| CN202271801U (en) * | 2011-10-09 | 2012-06-13 | 陕西重型汽车有限公司 | Non-suspended type plate spring and air spring combination type hanger bracket for automobile |
| CN202448706U (en) * | 2012-03-07 | 2012-09-26 | 上汽依维柯红岩商用车有限公司 | Connecting structure for connecting intermediate axle and rear axle on frames |
| CN208411337U (en) * | 2018-04-28 | 2019-01-22 | 许婷婷 | A kind of air spring for automobile suspension and support |
| CN208452729U (en) * | 2018-06-25 | 2019-02-01 | 广州市锐尚展柜制作有限公司 | A kind of lightweight suspension bags seat structure |
| CN208558927U (en) * | 2018-07-05 | 2019-03-01 | 一汽解放汽车有限公司 | A kind of truck composite front air suspension system |
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| Publication number | Publication date |
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| CN113071279A (en) | 2021-07-06 |
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