CN202400148U

CN202400148U - Steering mechanism for mining vehicle

Info

Publication number: CN202400148U
Application number: CN2011205017602U
Authority: CN
Inventors: 杨珏; 杨耀东; 唐歌腾
Original assignee: University of Science and Technology Beijing USTB
Current assignee: University of Science and Technology Beijing USTB
Priority date: 2011-12-05
Filing date: 2011-12-05
Publication date: 2012-08-29
Anticipated expiration: 2021-12-05

Abstract

The utility model relates to a steering mechanism for a mining vehicle, which has a function of improving kinematic and dynamic characteristics of a steering system and is simple in structure. The steering mechanism comprises a frame, a first steering knuckle arm, a second steering knuckle arm, a first steering transverse pull rod, a second steering transverse pull rod, a first steering cylinder, a second steering cylinder, a steering rocker arm, a cylinder hinge support, a knuckle bearing, a pin, a first steering joint, a second steering joint, a first front oil gas suspension, a second front oil gas suspension and bolts. By means of the steering mechanism, turning angle relation parameters of an inner wheel and an outer wheel of a front bridge can be guaranteed while steering cylinder stress peak is decreased, stress on critical parts of the pin and the like can be reduced, abrasion is lessened, and the service lives of the critical parts such as the steering cylinders, the pin and the like can be prolonged. Further, structural simplification is realized, parts are reduced, the production cost of the whole steering mechanism is reduced, and reliability of the whole vehicle can be improved while the service life of the vehicle is prolonged.

Description

A kind of mine truck is used steering hardware

Technical field

The utility model relates to a kind of mine truck and uses steering hardware, specifically is meant a kind of structural arrangement pattern that is used for the Front Axle Steering Mechanism of mine truck.

Background technology

Mine truck is a kind of large-scale non-highway transport vehicle, is that a kind of heavy dump truck that uses with the ore transportation burden is peeled off for accomplishing the rock earthwork in the mine in the open.Usually loaded by large-scale power shovel, travel to and fro between digging point and unload the ore deposit point, its work characteristics is that length of run is short, carrying is heavy.Mine truck requires height not as car to travelling comfort to the requirement of travelling comfort, but work under bad environment, steering resisting torque is big, and is higher to the reliability requirement of steering swivel system, and claimed structure is simple as far as possible.

Steering hardware is the important composition parts of mine truck steering swivel system, and its characteristic has determined the cornering properties and the road-holding property of mine truck to a great extent.Steering hardware by track arm, turn to oil cylinder and connect left and right wheels and be used for the structures such as steering lever arm system of transferring power and movement relation and form.Steering hardware commonly used at present mainly contains: integral type, preposition sectional type and rearmounted sectional type.

The characteristics of Integral steering mechanism are to adopt a complete tierod to connect the track arm of left and right wheels; In use; Because the connection of integral type intermediate rod, left and right wheels can influence each other when beating, when single wheel has when beating; Can cause the sidesway of opposite side wheel, thereby increase Tyte Wear.

Summary of the invention

In order to address the above problem; The purpose of the utility model is to improve the kinematics and the dynamics of mine truck steering swivel system; Simplifying each framing member of steering hardware connects; Reduce the wearing and tearing of critical components such as bearing pin, cost-cutting, the mine truck that finally improves automobile reliability and prolong its service life is used steering hardware.

The technical scheme of the utility model is following: a kind of mine truck is used steering hardware, and this steering hardware comprises that vehicle frame, first track arm, second track arm, first tierod, second tierod, first turn to oil cylinder, second to turn to oil cylinder, pitman arm, oil cylinder hinge stent, oscillating bearing, bearing pin, first steering swivel, second steering swivel, the first preceding oleo-pneumatic suspension, second preceding oleo-pneumatic suspension and the bolt;

Wherein, Said oil cylinder hinge stent is fixed on the said vehicle frame; Said pitman arm and said oil cylinder hinge stent are hinged; Said first turns to oil cylinder and second to turn to an end of oil cylinder hinged with the two ends of said oil cylinder hinge stent respectively; One end of said first tierod and second tierod is hinged with the two ends of said pitman arm respectively; Said first turn to the oil cylinder and first tierod the other end hinged through said bearing pin with oscillating bearing and said first track arm, said second to turn to the other end of the oil cylinder and second tierod to pass through said bearing pin and oscillating bearing and said second track arm hinged, said first steering swivel and first track arm are to carry out fixed through bolt; Said second steering swivel and second track arm are to carry out fixed through bolt; The inner core of oleo-pneumatic suspension is fixed before said first steering swivel and first, and the inner core of oleo-pneumatic suspension is fixed before said second steering swivel and second, and the two ends of the said vehicle frame of urceolus of oleo-pneumatic suspension are hinged before the said first preceding oleo-pneumatic suspension and second.

The utility model has the advantages that:

1, compares with conventional steering mechanism; Owing to turn to the arm of force of oil cylinder effect to increase 30%-50%; The utility model has solved the abominable problem of general Steering Linkage for Mining Dump Truck load-up condition, has reduced to turn to the peak stress 20%-40% of oil cylinder, reduces the stressed of critical component such as bearing pin; Reduce wear, improve the service life that turns to critical components such as oil cylinder and bearing pin.

2, the utility model with tierod with turn to oil cylinder directly to link to each other through a bearing pin simultaneously with track arm, simple in structure, the minimizing of parts number, and the manufacture simplification of track arm reduce the productive costs of whole steering hardware.

Description of drawings

Fig. 1 is the structural representation of a kind of mine truck of the utility model with steering hardware.

Fig. 2 is the right TV structure scheme drawing of a kind of mine truck of the utility model with steering hardware.

Fig. 3 is that a kind of mine truck of the utility model amplifies the sectional structure scheme drawing with the A place of steering hardware among Fig. 1.

Among the figure:

Vehicle frame, 2. first track arm, 3. second track arm, 4. first tierod, 5. second tierod, 6. first turn to oil cylinder, 7. second turn to oil cylinder, 8. pitman arm, 9. oil cylinder hinge stent, 10. oleo-pneumatic suspensions, 16. bolts before the oleo-pneumatic suspensions, 15. second before the oscillating bearing, 11. bearing pins, 12. first steering swivels, 13. second steering swivels, 14. first.

The specific embodiment

Like Fig. 1-shown in Figure 3; A kind of mine truck of the utility model is used steering hardware, comprises that vehicle frame 1, first track arm 2, second track arm 3, first tierod 4, second tierod 5, first turn to oil cylinder 6, second to turn to before oil cylinder 7, pitman arm 8, oil cylinder hinge stent 9, oscillating bearing 10, bearing pin 11, first steering swivel 12, second steering swivel 13, first oleo-pneumatic suspension 15 and bolt 16 before the oleo-pneumatic suspension 14, second;

Wherein, Oil cylinder hinge stent 9 is fixed in the center of vehicle frame 1; Pitman arm 8 is hinged with oil cylinder hinge stent 9; First turns to oil cylinder 6 and second to turn to an end of oil cylinder 7 hinged with the two ends of oil cylinder hinge stent 5 respectively, and an end of first tierod 4 and second tierod 5 is hinged with the two ends of pitman arm 8 respectively, and first turns to the other end of the oil cylinder 6 and first tierod 4 hinged with the oscillating bearing 10 and first track arm 2 through bearing pin 11; Second turns to the other end of the oil cylinder 7 and second tierod 5 hinged with the oscillating bearing 10 and second track arm 3 through bearing pin 11; First steering swivel 12 and first track arm 2 are to carry out fixedly through bolt, and second steering swivel 13 and second track arm 3 are to carry out fixedly through bolt 16, and the inner core of oleo-pneumatic suspension 14 is fixed before first steering swivel 12 and first; The inner core of oleo-pneumatic suspension 15 is fixed before second steering swivel 13 and second, and the two ends of the urceolus vehicle frame 6 of oleo-pneumatic suspension 15 are hinged before the first preceding oleo-pneumatic suspension 14 and second.

The principle of work of the utility model is:

During Vehicular turn; First of inboard turns to oil cylinder 5 to shrink; Second of the outside turns to oil cylinder 6 elongations; Drive first track arm 2 and second track arm, 3, the first steering swivels 12 round the first preceding oleo-pneumatic suspension 14 axis rotation, second steering swivel 13 is round the second preceding oleo-pneumatic suspension 15 axis rotation; Because second turns to oil cylinder 6 rod chambers; First to turn to oil cylinder 5 to be that rodless cavity causes first track arm 2 different with the push-pull effort of second track arm 3; This moment, second track arm 3 drove 5 motions of second tierod greatly because of suffered thrust is inboard, thereby pitman arm 8 rotates, and then drove inboard first tierod, 4 motions; So far a part of thrust is passed to inboard first track arm 2, finally overcome steering resisting torque and realize turning to of interior outboard wheels.

As stated, the utility model is used simple structural arrangement, with tierod with turn to oil cylinder directly to link to each other through a bearing pin simultaneously with track arm; Make the growth of the arm of force that turns to the oil cylinder effect, reduced to turn to the peak stress of oil cylinder, reduce the stressed of critical component such as bearing pin; Reduce wear, improve the service life that turns to critical components such as oil cylinder and bearing pin, simultaneously designs simplification; Reduce the parts number, reduce the productive costs of whole steering hardware.

Claims

1. a mine truck is used steering hardware; It is characterized in that, comprise that vehicle frame (1), first track arm (2), second track arm (3), first tierod (4), second tierod (5), first turn to oil cylinder (6), second to turn to oil cylinder (7), pitman arm (8), oil cylinder hinge stent (9), oscillating bearing (10), bearing pin (11), first steering swivel (12), second steering swivel (13), the first preceding oleo-pneumatic suspension (14), second preceding oleo-pneumatic suspension (15) and the bolt (16);

Wherein, Said oil cylinder hinge stent (9) is fixed in the center of said vehicle frame (1); Said pitman arm (8) is hinged with said oil cylinder hinge stent (9); Said first turns to oil cylinder (6) and second to turn to an end of oil cylinder (7) hinged with the two ends of said oil cylinder hinge stent (5) respectively; Said first tierod (4) is hinged with the two ends of said pitman arm (8) respectively with an end of second tierod (5); Said first turns to the other end of oil cylinder (6) and first tierod (4) hinged with said first track arm (2) through bearing pin (11) and said oscillating bearing (10); Said second turns to the other end of oil cylinder (7) and second tierod (5) hinged with said second track arm (3) through said bearing pin (11) and said oscillating bearing (10); Said first steering swivel (12) and first track arm (2) are to carry out fixedly through bolt (16), and said second steering swivel (13) and second track arm (3) are to carry out fixedly through bolt (16), and the inner core of oleo-pneumatic suspension (14) is fixed before said first steering swivel (12) and said first; The inner core of oleo-pneumatic suspension (15) is fixed before said second steering swivel (13) and said second, and the two ends of the urceolus of oleo-pneumatic suspension (15) and said vehicle frame (6) are hinged before the said first preceding oleo-pneumatic suspension (14) and said second.