Automobile driving cabin overturning, Locking Device
Technical field: the present invention relates to a kind of automobile driving cabin overturning, Locking Device, particularly a kind of cab-over-engine truck driver's cab turnover, Locking Device.
Background technology: motor car engine is the heart of self-propelled vehicle, and is most important to its maintenance, repairing.The operator's compartment of domestic cab-over-engine truck is to be fixed on the chassis basically before this, and most of producers adopt the method for opening square hole on the operator's compartment base plate, with maintenance, the repairing that makes things convenient for driving engine.Yet, because engine maintenance, repairing work itself are just extremely heavy and not easy to operate, therefore, in its limited spatial dimension, safeguard, repair still very inconvenience, carry out sometimes even at the bottom of being forced to pierce car, both be difficult to operate, and dangerous; Sometimes in order to strive for bigger service clearance, have no alternative and headstock have to be unloaded, both time-consuming, need certain special tool and equipment again.
Summary of the invention: technical matters to be solved by this invention is: is intended to overcome the deficiency of above-mentioned prior art, a kind of automobile driving cabin overturning, Locking Device is provided, and when needs keep in repair driving engine, 1, operator's compartment can be dug easily; 2, turn over when rising to certain angle when operator's compartment, strut mechanism can open automatically and prop up operator's compartment, and automatic self-locking, makes the operator's compartment of being propped up have enough spaces, with convenient for maintaining personnel's maintenance and repair; 3, after maintenance and repair finish, press the lower supporting rod self-locking device, operator's compartment will utilize self gravitation to fall, and lockable mechanism adopts retrocession safely operator's compartment to be locked on the vehicle frame.Because whole operator's compartment is mounted on four strong points of whole upset, lockable mechanism, consider that from taking advantage of the traveling comfort of driving driver's cab turnover, lockable mechanism also must have buffering, cushioning effect simultaneously.
Its technical scheme: a kind of automobile driving cabin overturning, Locking Device is characterized in that:
Turning device is made up of strut mechanism and switching mechanism; Strut mechanism forms by upper and lower strut bar is hinged, and the upper end of upper support bar respectively is connected a support that is fixed on operator's compartment base plate and the chassis by bearing pin respectively with the lower end of lower support bar; Switching mechanism is made of central siphon assembly, torsion bar, central siphon, left and right support, supporting arm and torsion bar arm assembly, torsion bar is connected by the spline assembling with central siphon, be installed in the affixed left and right support in chassis on, near supporting arm being housed on the central siphon of left and right support inboard respectively, right support outside torsion bar arm assembles with torsion bar enforcement spline by central siphon and is connected; Locking Device is made up of left and right support, bearing support, locking bail assembly and long and short pull bar and steering unit;
The locking bail assembly is made of lock bracket, big latch hook, connecting arm and torsion spring, rivets with lock bracket after the hinged back of latch hook and connecting arm is assembled together with torsion spring greatly; Left and right locking bail by the mounting hole symmetry of lock bracket be installed in wall behind the operator's compartment on one's body the big latch hook of left and right locking bail match with lock ring on the left and right support respectively; Left and right support is separately fixed on the left and right bearing support, and left and right bearing support is separately fixed on the chassis; Left and right locking bail assembly is hinged by the bearing pin and the long draw of connecting arm respectively; Steering unit constitutes by paying latch hook, big handgrip, safe latch hook, fixed support and torsion spring, and pair latch hook, big handgrip, safe latch hook are hinged on the fixed support by bearing pin and torsion spring respectively; Short rod end in control mechanism assembly is hinged with big handgrip, and the bearing pin of connecting arm is hinged in the other end and the left locking bail, and steering unit is fixed on behind the operator's compartment on the left of the wall by the mounting hole on the fixed support.
Its technique effect is: when needing repairing 1) manipulating handgrip on the pulling Locking Device, utilize four connecting rod principles, by long and short pull bar, make big latch hook on the left and right locking bail respectively with the chassis attaching parts---the rack pin shaft on the after poppet assembly breaks away from; 2) the safe latch hook in the pulling control mechanism assembly makes safe latch hook and chassis attaching parts---and the rack pin shaft on the supporting bracket of back breaks away from; 3) under the effect of torsion bar elevate a turnable ladder power, operator's compartment is dug around centre of gration, drives the strut mechanism opening and props up and automatic self-locking, and the operator's compartment that is connected on the trip shaft pipe assembly supporting arm is propped up in predetermined angle, thereby realize the purpose that operator's compartment is dug, expanded the space of engine maintenance.
Keep in repair the back 1 that finishes) press the self-locking hammerlock in the lower supporting rod mechanism, utilize the gravity of operator's compartment self, operator's compartment is fallen; 2) be connected safe latch hook auto lock on the operator's compartment and be installed in lock ring on the back supporting bracket on the chassis; 3) promote manipulating handgrip on the Locking Device, by long and short pull bar interlock make in the left and right locking bail big latch hook respectively with after poppet on lock pin locking, connecting arm turns over automatic self-locking behind the latching point; 4) pay latch hook locking steering unit lock pin after, automatic self-locking, thus the operator's compartment that falls is linked together with vehicle frame safely and reliably.
Description of drawings:
Fig. 1 is a turning device structural representation of the present invention;
Fig. 2 is a Locking Device structural representation of the present invention.
The specific embodiment:
As shown in Figure 1, turning device is made up of strut mechanism and switching mechanism.Strut mechanism 1 is by upper and lower strut bar 12,15 hinged forming, and the upper end of upper support bar respectively is connected a support 11,16 that is fixed on operator's compartment base plate and the chassis 101 by bearing pin respectively with the lower end of lower support bar.The hammerlock 14 and the extension spring 13 of unlatching and self-locking action also have been installed on the upper support bar.
Switching mechanism 2 is made of central siphon assembly, torsion bar, central siphon, left and right support, supporting arm and torsion bar arm assembly, torsion bar 21 is connected by the spline assembling with central siphon 22, be installed in the affixed left and right support 23 in chassis on, near supporting arm 26 being housed on the central siphon of left and right support inboard respectively, be fixed on after right support outside torsion bar arm 27 and spline housing 28 welding central siphon an end.Be welded with two flanges 25 on the central siphon 22, the installation site of left and right support 23 on the chassis determined in the installation site of flange, installs with the chassis that adapts to different in width.
Locking Device is made up of left and right support, bearing support, locking bail assembly and long and short pull bar and steering unit.Locking bail assembly 6 is made of lock bracket, big latch hook, connecting arm and torsion spring, big latch hook 61 and connecting arm 62 hinged backs and torsion spring 63 be assembled together back and lock bracket 64 riveted joints; Left and right locking bail assembly is installed in behind the operator's compartment on one's body the wall by the mounting hole symmetry of lock bracket, and the big latch hook 61 in the left and right locking bail assembly matches with lock ring 71 on the left and right support 7 respectively, with locking and the unlatching that realizes this mechanism.Left and right support is separately fixed on the left and right bearing support 8, and left and right bearing support is separately fixed on the chassis 101.Left and right locking bail 6 assemblies are hinged by bearing pin and long draw 5 on the connecting arm 62 respectively.
Steering unit 3 constitutes by paying latch hook, big handgrip, safe latch hook, fixed support and torsion spring, pay latch hook 33, big handgrip 34, safe latch hook 35 and be hinged on the fixed support 31 by bearing pin and torsion spring 32 respectively, steering unit is fixed on wall left side behind the operator's compartment by the mounting hole on the fixed support 31.
Short rod 4 end in steering unit is hinged with big handgrip 34, and the bearing pin of the connecting arm 62 in the other end and the left locking bail assembly 6 is hinged.Big handle 34 is installed in the operator's compartment left back, the auxiliary acting point of hand when being used for driver's cab turnover.
In order to guarantee the traveling comfort in the operator's compartment driving process, the rubber block 72 with buffer action is installed on the left and right support 7 of Locking Device 3, on the support below this support 7 and bearing support 8 junctions, the snubber block 73 with cushioning effect is installed.