Type leading wheel framework and autorail
Technical field
The present invention relates to automobile-used mechanical equipment, relate in particular to a kind of type leading wheel framework and autorail.
Background technology
At present, autorail both can travel at highway because of it, can move at railway again, was widely used in the rail transport industry.The operations such as autorail is generally used for rail traction, repairing, constructs and speedily carries out rescue work, autorail of the prior art mainly comprises: underframe, driver's cab, wheel and track adjusting wheel.Driver's cab and engine installation are assemblied in underframe top, and wheel is arranged on the bottom of underframe, and track adjusting wheel is installed in the bottom of underframe by guiding mechanism.When autorail when highway travels, track adjusting wheel is packed up by guiding mechanism, autorail drives vehicle wheel rotation by engine installation and drives and travel; When autorail when rail travels, track adjusting wheel is put down and is dropped on by guiding mechanism on the rail, track adjusting wheel cooperates with rail and is used for guiding.Guiding mechanism adopts the oscillating guidebar mechanism hoisting type to realize the lifting of track adjusting wheel usually, oil cylinder in the oscillating guidebar mechanism need to rotate along with the lifting of track adjusting wheel usually, oil cylinder occurs in rotation process oil cylinder easily reveals, and causes the reliability of autorail lower.
Summary of the invention
Technical matters to be solved by this invention is: a kind of type leading wheel framework and autorail are provided, solve the lower defective of reliability of autorail of the prior art, realize improving by type leading wheel framework the reliability of autorail.
Technical scheme provided by the invention is, a kind of type leading wheel framework, comprise two track adjusting wheels, two described track adjusting wheels link together by wheel shaft, be provided with axle block on the described wheel shaft, each described track adjusting wheel correspondence is provided with guide link mechanism, and described guide link mechanism comprises oil cylinder frame, sliding rack, the first pivoted arm, the second pivoted arm and oil cylinder; Described oil cylinder frame is fixed on the vehicle frame of autorail, the cylinder body of described oil cylinder is hinged on the described oil cylinder frame, described sliding rack horizontal slip is connected on the described oil cylinder frame, one end of the piston rod of described oil cylinder and described sliding rack is hinged, the upper end of described the first pivoted arm is hinged on the described vehicle frame, the upper end of described the second pivoted arm is hinged on the other end of described sliding rack, the lower end of described the first pivoted arm is hinged on the middle part of described the second pivoted arm, and described axle block is fixed on the lower end of described the second pivoted arm.
Aforesaid type leading wheel framework, the length of described the second pivoted arm are the twice of the length of described the first pivoted arm.
Aforesaid type leading wheel framework, the lower end of described the first pivoted arm is hinged on the midpoint of described the second pivoted arm.
Aforesaid type leading wheel framework, the midpoint of described the second pivoted arm is fixedly connected with chuck, is connected with head rod between the described chuck in two described guide link mechanisms, and the lower end of described the first pivoted arm is hinged on the described head rod.
Aforesaid type leading wheel framework is connected with the second pipe link between described the first pivoted arm in two described guide link mechanisms.
Aforesaid type leading wheel framework offers chute on the described sliding rack, is provided with slide block on the described oil cylinder frame, and described slide block is slidingly connected in the described chute.
A kind of autorail comprises vehicle frame, also comprises aforesaid type leading wheel framework, and the oil cylinder frame in the described type leading wheel framework is fixed on the described vehicle frame, and the first pivoted arm in the described type leading wheel framework is hinged on the described vehicle frame.
Type leading wheel framework provided by the invention and autorail, connect sliding rack by horizontal slip on the oil cylinder frame, oil cylinder horizontal drive sliding rack moves back and forth, realize the setting of oil cylinder level of approximation, oil cylinder can not rotate in the lifting process of track adjusting wheel, has reduced the amount of exercise of oil cylinder with mechanism, has reduced the possibility of oil cylinder leakage of oil, prolong the service life of oil cylinder, improved the reliability of autorail.In addition, oil cylinder, sliding rack, the first pivoted arm and the second pivoted arm form the Ai Wensi connecting rod mechanism, have reduced oil cylinder stroke, have increased the angle of attach of type leading wheel framework, have reduced the motion of oil cylinder with mechanism, have improved the stability of type leading wheel framework.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do one to the accompanying drawing of required use in embodiment or the description of the Prior Art and introduce simply, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the front view that is in deployed condition of type leading wheel framework embodiment of the present invention;
Fig. 2 is the lateral plan that is in deployed condition of type leading wheel framework embodiment of the present invention;
Fig. 3 is the front view that is in contraction state of type leading wheel framework embodiment of the present invention.
The specific embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Shown in Figure 3 such as 1-, the present embodiment type leading wheel framework, comprise two track adjusting wheels 5, two track adjusting wheels 5 link together by wheel shaft 51, be provided with axle block 50 on the wheel shaft 51, each track adjusting wheel 5 correspondence is provided with guide link mechanism (not shown), and guide link mechanism comprises oil cylinder frame 1, sliding rack 2, the first pivoted arm 3, the second pivoted arm 4 and oil cylinder 11; Oil cylinder frame 1 is fixed on the vehicle frame of autorail, the cylinder body of oil cylinder 11 is hinged on the oil cylinder frame 1, sliding rack 2 horizontal slips are connected on the oil cylinder frame 1, one end of the piston rod of oil cylinder 11 and sliding rack 2 is hinged, the upper end of the first pivoted arm 3 is hinged on the vehicle frame, the upper end of the second pivoted arm 4 is hinged on the other end of sliding rack 2, and the lower end of the first pivoted arm 3 is hinged on the middle part of the second pivoted arm 4, and axle block 50 is fixed on the lower end of the second pivoted arm 4.
Particularly, sliding rack 2 horizontal slips in the present embodiment are connected on the oil cylinder frame 1, and oil cylinder 11 will drive sliding rack 2 parallel motions, drive the second pivoted arm 4 by sliding rack 2 and rotate, and the second pivoted arm 4 cooperates with the first pivoted arm 3, realizes the lifting of track adjusting wheel 5.Preferably, the length of the second pivoted arm 4 in the present embodiment is the twice of the length of the first pivoted arm 3, and the lower end of the first pivoted arm 3 is hinged on the midpoint of the second pivoted arm 4.Concrete, in track adjusting wheel 5 dipping and heaving processes, oil cylinder 5 keeps the level on the theory significance motionless, at the core wheel of the rotation end points of the rotation end points of the upper end of the second pivoted arm 4, the first pivoted arm 3 lower ends and track adjusting wheel 5 point-blank, and the length of the second pivoted arm 4 is the twice of the length of the first pivoted arm 3, when oil cylinder 2 moves in the horizontal direction, can realize that the lifting track of track adjusting wheel 5 is perpendicular to the rail level of rail, make more pulsation-free lifting of track adjusting wheel 5, and the pilot pressure of actv. minimizing.
Wherein, for easily with the first pivoted arm 3 be connected pivoted arm 4 and connect, and actv. improves the intensity of total, improve stability, the midpoint of the second pivoted arm 4 is fixedly connected with chuck 41, the lower end that is connected with head rod 42, the first pivoted arms 3 between the chuck 41 in two guide link mechanisms is hinged on the head rod 42.And be connected with the second pipe link 31 between the first pivoted arm 3 in two guide link mechanisms, so that two track adjusting wheels 5 can obtain balanced hoisting force.In addition, offer chute 21 on the sliding rack 2 in the present embodiment, be provided with slide block 12 on the oil cylinder frame 1, slide block 12 is slidingly connected in the chute 21.Concrete, cooperate with chute 21 by slide block 12, can make more sliding with respect to oil cylinder frame 1 of steady and smooth of sliding rack 2.
The present invention also provides a kind of autorail, comprises vehicle frame, also comprises the type leading wheel framework among the type leading wheel framework embodiment of the present invention, and the oil cylinder frame in the type leading wheel framework is fixed on the vehicle frame, and the first pivoted arm in the type leading wheel framework is hinged on the vehicle frame.
Type leading wheel framework provided by the invention and autorail, connect sliding rack by horizontal slip on the oil cylinder frame, oil cylinder horizontal drive sliding rack moves back and forth, realize the setting of oil cylinder level of approximation, oil cylinder can not rotate in the lifting process of track adjusting wheel, has reduced the amount of exercise of oil cylinder with mechanism, has reduced the possibility of oil cylinder leakage of oil, prolong the service life of oil cylinder, improved the reliability of autorail.In addition, oil cylinder, sliding rack, the first pivoted arm and the second pivoted arm form the Ai Wensi connecting rod mechanism, have reduced oil cylinder stroke, have increased the angle of attach of type leading wheel framework, have reduced the motion of oil cylinder with mechanism, have improved the stability of type leading wheel framework.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.