CN211106816U

CN211106816U - Front suspension device of off-highway mining dump truck

Info

Publication number: CN211106816U
Application number: CN201922183753.1U
Authority: CN
Inventors: 刘建国; 王建峰
Original assignee: Xi'an Guoli Heavy Industry Off Highway Mining Vehicle Manufacturing Co ltd
Current assignee: Xi'an Guoli Heavy Industry Off Highway Mining Vehicle Manufacturing Co ltd
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2020-07-28
Anticipated expiration: 2029-12-09

Abstract

The utility model relates to a front suspension device of an off-highway mining dump truck, which is of a slide plate type structure and comprises a front spring front support and a front spring rear support; the front steel plate spring is of a single main spring structure and is fixed on the front axle through a front spring pressing plate and a U-shaped bolt; the friction plates are fixed on the front and rear supports of the front spring and are in sliding connection with the two ends of the front steel plate spring; the thrust rods are longitudinally arranged, the front ends of the thrust rods are fixedly connected with the bottom of the front spring front support, and the rear ends of the thrust rods are fixedly connected with the thrust rod bases on the front axle; the shock absorbers are positioned on the left side and the right side of the front leaf spring, the upper parts of the shock absorbers are fixed on the frame longitudinal beam through the shock absorber seats, and the lower parts of the shock absorbers are fixed on the front leaf spring through the connecting forks. The utility model discloses a front suspension device is when vehicle drive or emergency brake, and the longitudinal force that the frame received is no longer born by preceding leaf spring on transmitting the front axle by the distance rod, has played fine guard action to preceding leaf spring, has eliminated the potential safety hazard in the vehicle traveles to very big promotion vehicle driving's travelling comfort.

Description

Front suspension device of off-highway mining dump truck

Technical Field

The utility model belongs to off-highway mining dump truck field specifically is a front suspension device who relates to an off-highway mining dump truck.

Background

The existing front suspension structure of the mining dump truck mainly comprises a main spring front support, a front main spring, a front auxiliary spring, a limiting block, a lifting lug, a main spring rear support, an auxiliary spring front support and an auxiliary spring rear support. The front plate spring adopts a mode that an auxiliary spring is superposed on the upper part of a main spring, the front end of the main spring is fixed on a main spring front support by a plate spring pin, the rear end of the main spring is arranged on a main spring rear support by a pin shaft by adopting a lifting lug structure, the two ends of the upper part of the auxiliary spring are respectively provided with an auxiliary spring front support and an auxiliary spring rear support, and the auxiliary spring is pressed tightly when heavy load is carried out; the main spring and the auxiliary spring are fixed on the axle by U-shaped bolts. The gravity, lateral force and longitudinal force borne by the vehicle in the running process are all transmitted to the main spring support through the vehicle frame, then transmitted to the main spring leaf spring plate and the auxiliary spring leaf spring plate through the lifting lugs and the leaf spring pin shafts, and then transmitted to the front axle and the tire through the main spring and the auxiliary spring. Along with the continuous increase of mining dump truck loading capacity, the stress and the rigidity of the front spring are increased, the mining dump truck has large load and poor working road conditions, so that the driving comfort of the mining dump truck is very poor, in addition, because the load pressure, the lateral force and the longitudinal force of the front end of the truck are all born and transmitted by the main spring leaf spring piece and the auxiliary spring leaf spring piece, the pavement of a mining area is poor, the impact force is large, the breakage of the front spring leaf spring and the damage of the lifting lug are caused to occur frequently, the time and the labor are wasted when the plate leaf spring and the lifting lug are replaced in the mining area, and the.

Disclosure of Invention

The utility model aims to provide a front suspension device of an off-highway mining dump truck, which is provided with a thrust rod, and solves the problems that the load pressure, the lateral force and the longitudinal force at the front end of the vehicle are all born and transmitted by main and auxiliary spring leaf springs, so that the main and auxiliary springs are broken and the lifting lugs are frequently damaged; in addition, the front steel plate spring adopts a single main spring mode, and each main spring is provided with two shock absorbers, so that the problem of very poor driving comfort of the vehicle in the prior art is solved.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

a front suspension device of an off-highway mining dump truck comprises a frame longitudinal beam, a front spring front support, a front spring rear support, a front steel plate spring, a front axle, a front spring pressing plate, a U-shaped bolt, a friction plate, a limiting block mounting seat, a thrust rod seat, a shock absorber seat and a connecting fork;

the front spring front support and the front spring rear support are fixed on the frame longitudinal beam;

the front steel plate spring is of a single main spring structure and is fixed on the front axle through a front spring pressing plate and a U-shaped bolt;

the friction plates are respectively fixed on the front spring support and the front spring rear support, and the two friction plates are closely and slidably connected with the two ends of the front steel plate spring;

the front end of the thrust rod is fixedly connected with the lower part of the front spring support, and the rear end of the thrust rod is fixedly connected with a thrust rod seat on a front axle;

the shock absorbers are arranged in two groups, the two groups of shock absorbers are arranged on the left side and the right side of the front plate spring, the upper portions of the two groups of shock absorbers are fixed on a frame longitudinal beam through shock absorber bearings, and the lower portions of the two groups of shock absorbers are fixed at the bottom of the front plate spring through connecting forks.

Furthermore, the frame longitudinal beam right above the front steel plate spring is provided with two groups of limiting blocks, and the two groups of limiting blocks are fixed on the frame longitudinal beam through limiting block mounting seats.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a mode that the distance rod is connected, the longitudinal force that the frame received when emergency brake or drive is transmitted the front axle by the distance rod on, no longer undertakes by preceding leaf spring's leaf spring piece, has reduced the cracked risk of board reed.

2. The utility model discloses preceding leaf spring changes the structure of traditional main and auxiliary spring into the structure of single main spring, and is unchangeable at the vehicle load, under the unchangeable condition of preceding spring rigidity promptly, and the thickening of veneer reed is widened, and monolithic rigidity improves, and the leaf spring piece is difficult fracture.

3. The utility model discloses two bumper shock absorbers of single preceding leaf spring configuration, through the effect of bumper shock absorber, when the vehicle was through rugged and uneven road surface, the bumper shock absorber absorbed the vibrations, the beat that come from preceding leaf spring to produce for it is more comfortable to drive.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, drawings of other embodiments can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a side sectional view A-A of FIG. 1;

FIG. 3 is a side sectional view B-B of FIG. 1;

in the figure, 1-frame longitudinal beam, 2-front spring front support, 3-front spring rear support, 4-front steel plate spring, 5-front axle, 6-front spring pressure plate, 7-U-shaped bolt, 8-friction plate, 9-limit block, 10-limit block mounting seat, 11-thrust rod, 12-thrust rod seat, 13-shock absorber, 14-shock absorber seat and 15-connecting fork.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Referring to fig. 1, the front suspension device of the off-highway mining dump truck comprises a frame longitudinal beam 1, a front spring front support 2, a front spring rear support 3, a front steel plate spring 4, a front axle 5, a front spring pressing plate 6, a U-shaped bolt 7, a friction plate 8, a limiting block mounting seat 10, a thrust rod 11, a thrust rod seat 12, a shock absorber 13, a shock absorber seat 14 and a connecting fork 15;

the front spring front support 2 and the front spring rear support 3 are fixed on the frame longitudinal beam 1;

the front steel plate spring 4 is of a single main spring structure, and the front steel plate spring 4 is fixed on the front axle 5 through a front spring pressing plate 6 and a U-shaped bolt 7;

the friction plates 8 are respectively fixed on the front spring front support 2 and the front spring rear support 3, and the two friction plates 8 are closely and slidably connected with the two ends of the front steel plate spring 4;

the thrust rod 11 is arranged along the direction of the frame longitudinal beam 1, the front end of the thrust rod 11 is fixedly connected with the lower part of the front spring front support 2, and the rear end of the thrust rod 11 is fixedly connected with a thrust rod support 12 on the front axle 5;

the shock absorbers 13 are arranged in two groups, the two groups of shock absorbers 13 are arranged on the left side and the right side of the front plate spring 4, the upper parts of the two groups of shock absorbers 13 are fixed on the frame longitudinal beam 1 through the shock absorber seats 14, and the lower parts of the two groups of shock absorbers 13 are fixed at the bottom of the front plate spring 4 through the connecting fork 15.

Limiting blocks 9 are arranged on the frame longitudinal beam 1 right above the front steel plate spring 4, two groups of limiting blocks 9 are arranged, and the two groups of limiting blocks 9 are fixed on the frame longitudinal beam 1 through limiting block mounting seats 10 to achieve limiting and buffering effects; on one vehicle, two, four in total are respectively installed right above each front leaf spring 4.

The front steel plate spring 4 used by the utility model is only a single main spring which is widened and thickened, and the upper part is not provided with an installation auxiliary spring; on one vehicle, two front leaf springs 4 are respectively arranged at the bottoms of two frame longitudinal beams 1, and the total number is two.

Each frame longitudinal beam 1 is provided with a thrust rod 11 beside, and on one vehicle, the number of the thrust rods is two. The thrust rod 11 is arranged along the longitudinal beam direction, the front end of the thrust rod is fixedly connected with the lower part of the front spring front support 2 through a bolt, the rear end of the thrust rod is fixedly connected with the thrust rod seat 12 on the front axle through a bolt, and the thrust rod 11 is connected in such a way, so that the longitudinal force borne by the frame during emergency braking or driving is transferred to the front axle and is not borne by the plate spring piece of the front plate spring 4, and the risk of plate spring piece breakage is reduced;

two shock absorbers 13 are provided for each front leaf spring 4, for a total of four on a single vehicle. The shock absorbers 13 are positioned on the left side and the right side of the front leaf spring 4, the upper portion of the shock absorbers are connected to the shock absorber bases 14, the shock absorber bases 14 are fixed to the frame longitudinal beam 1 through bolts, the lower portions of the shock absorbers are connected to the bottom of the front leaf spring 4 through the connecting forks 15, and the shock absorbers 13 absorb shock and bounce generated by the front leaf spring 4 when a vehicle passes through a rugged road surface through the effect of the shock absorbers 13, so that the driving is more comfortable.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a front suspension device of off-highway mining dump truck which characterized in that: the front spring rear support comprises a frame longitudinal beam (1), a front spring front support (2), a front spring rear support (3), a front steel plate spring (4), a front axle (5), a front spring pressing plate (6), a U-shaped bolt (7), a friction plate (8), a limiting block mounting seat (10), a thrust rod (11), a thrust rod seat (12), a shock absorber (13), a shock absorber seat (14) and a connecting fork (15);

the front spring front support (2) and the front spring rear support (3) are fixed on the frame longitudinal beam (1);

the front steel plate spring (4) is of a single main spring structure, and the front steel plate spring (4) is fixed on a front axle (5) through a front spring pressing plate (6) and a U-shaped bolt (7);

the friction plates (8) are respectively fixed on the front spring front support (2) and the front spring rear support (3), and the two friction plates (8) are closely and slidably connected with the two ends of the front steel plate spring (4);

the thrust rod (11) is arranged along the direction of the frame longitudinal beam (1), the front end of the thrust rod (11) is fixedly connected with the lower part of the front spring front support (2), and the rear end of the thrust rod (11) is fixedly connected with a thrust rod seat (12) on the front axle (5);

the shock absorbers are characterized in that the shock absorbers (13) are arranged in two groups, the two groups of shock absorbers (13) are arranged on the left side and the right side of the front leaf spring (4), the upper portions of the two groups of shock absorbers (13) are fixed on the frame longitudinal beam (1) through the shock absorber seats (14), and the lower portions of the two groups of shock absorbers (13) are fixed at the bottom of the front leaf spring (4) through the connecting fork (15).

2. The front suspension device of the off-highway mining dump truck according to claim 1, characterized in that: set up stopper (9) on solebar (1) directly over preceding leaf spring (4), stopper (9) set up two sets ofly, and two sets of stopper (9) are fixed on solebar (1) through stopper mount pad (10).