Road sweeper rear-guard chain regulating system
Technical field
The utility model relates to road sweeper, is road sweeper rear-guard chain regulating system specifically.
Background technology
The driving of existing electric floor sweeping car adopt more drive axle underlying or on put mode of traction, its drive axle of drive axle underneath type road sweeper is fixed on the bottom of road sweeper, thereby taken the part position of dirt case, caused dirt tankage less, and at the bottom of the road sweeper drive motors of the type is positioned at car, because heat radiation at the bottom of car does not with great difficulty burn out drive motors, and when occurring that driving device component damages, maintenance is inconvenience very.On drive axle, put towed road sweeper and be by drive installation the position on chassis and rotated by chain-driving rear-wheel hub, but rear-guard driving chain can not carry out tensioning, when rear-guard driving chain longevity of service fatigue is lax, tend to de-chain, like this can make troubles and the impact of safety operation to operator; The assembly chain tension adjuster occurring on the market at present is also just done simple adjusting with one or two screw rod, adds that the weight ratio of traction electric machine is larger due to rear axle assy, and a people goes to regulate very difficulty of operation.In addition, when regulating, two ends rear-guard drive sprocket need to keep identical height, and the main human eye that relies on is estimated at present, very inaccurate, and the height difference of two ends rear-guard drive sprocket can cause easily de-chain of chain, the impact of making troubles with safety operation to operator.Therefore, the road sweeper rear-guard chain regulating system in conventional art need further improve and optimize.
Utility model content
In order to overcome above-mentioned the deficiencies in the prior art, the utility model provides a kind of road sweeper rear-guard chain regulating system, has and the tensioning of rear-guard driving chain is regulated become the easily feature such as simple.
The utility model solves the technical scheme that its technical problem adopts:
Road sweeper rear-guard chain regulating system, comprise chassis, chassis upper surface is provided with rear axle assy, the two ends of rear axle assy are provided with rear-guard drive sprocket, described rear-guard drive sprocket drives rear wheel assembly by rear-guard driving chain, on described chassis, be also provided with back axle supporting seat, the driving shaft of rear axle assy is set up in the U groove of back axle supporting seat, on driving shaft, be installed with junction plate, after having back axle trip bolt through the strip hole on described junction plate and back axle supporting seat, by clamp nut, locked, also include lift adjustment screw rod, on described driving shaft, be installed with back axle support member, on back axle support member, be provided with screw, described lift adjustment screw rod is connected on described chassis through after this screw, on the lift adjustment screw rod between chassis and back axle support member, be equipped with stage clip, the two ends of described stage clip respectively with chassis and back axle support member butt.
As the improvement of technique scheme, described lift adjustment screw rod is four symmetrical surroundings that are arranged in described driving shaft.
As the further improvement of technique scheme, on described back axle support member, be provided with via hole, on back axle support member, be welded with the welded nut coaxial with via hole, the screw on described back axle support member consists of the screwed hole on this welded nut and described via hole.
Preferably, described clamp nut is two company's loading nut plates, on this two companies loading nut plate, is provided with two threaded connection holes, and each threaded connection hole correspondence arranges a described back axle trip bolt.
Further, the lateral location that is positioned at junction plate on described back axle supporting seat is provided with adjustment altitude scale.
The beneficial effects of the utility model are: the utility model that adopts said structure, by being nested with stage clip on the lift adjustment screw rod between chassis and back axle support member, the two ends of stage clip respectively with chassis and back axle support member butt, have benefited from the supporting role of stage clip, support rear axle assy, make the tensioning adjusting of rear-guard driving chain become easily simple, after the long-time use of rear-guard driving chain, fluff in the time of need to adjusting, supporting role by means of stage clip, only need a people to regulate and can realize, alleviated greatly operating personnel's labour intensity, improved adjusting work efficiency, and the simple and reasonable compactness of the utility model, easy for installation, implementation cost is low.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the partial enlarged drawing of A in Fig. 1:
Fig. 3 is the partial enlarged drawing of B in Fig. 1;
Fig. 4 is that the utility model is at the partial enlarged drawing (hiding clamp nut) of stage clip position.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Referring to Fig. 1 ~ Fig. 4, road sweeper rear-guard chain regulating system of the present utility model, comprise chassis 1, chassis 1 upper surface is provided with rear axle assy 2, the two ends of rear axle assy 2 are provided with rear-guard drive sprocket 3, described rear-guard drive sprocket 3 drives rear wheel assembly 41 by rear-guard driving chain 4, on described chassis 1, be also provided with back axle supporting seat 5, the driving shaft 21 of rear axle assy 2 is set up in the U groove 51 of back axle supporting seat 5, on driving shaft 21, be installed with junction plate 6, after having back axle trip bolt 7 through the strip hole 52 on described junction plate 6 and back axle supporting seat 5, by clamp nut 8, locked, back axle trip bolt 7 has certain activity surplus in strip hole 52, the needs that regulate to adapt to the tensioning of rear-guard driving chain, also include lift adjustment screw rod 9, on described driving shaft 21, be installed with back axle support member 10, on back axle support member 10, be provided with screw 101, described lift adjustment screw rod 9 is connected on described chassis 1 through after this screw 101, on the lift adjustment screw rod 9 between chassis 1 and back axle support member 10, be equipped with stage clip 11, the two ends of described stage clip 11 respectively with chassis 1 and back axle support member 10 butts, preferably, described lift adjustment screw rod 9 is four symmetrical surroundings that are arranged in described driving shaft 21.
In the present embodiment, screw 101 on back axle support member 10 consists of following structure: on described back axle support member 10, be provided with via hole 102, on back axle support member 10, be welded with the welded nut 103 coaxial with via hole 102, the screw 101 on described back axle support member 10 consists of the screwed hole on this welded nut 103 and described via hole 102.
In the present embodiment, preferably, described clamp nut 8 is two company's loading nut plates, on this two companies loading nut plate, be provided with two threaded connection holes, each threaded connection hole correspondence arranges a described back axle trip bolt 7, this structure is to consider that the clamp nut 8 of current fixedly rear axle assy 2 is because installation site is limit, spanner is relatively difficult to operation, and use two connect loading nut plates can be when mounted without the fixing clamp nut of spanner, fixing after directly installing with two back axle trip bolts 7 simultaneously, therefore do not need clamp nut 8 to be fixed and the use of having abandoned spanner, be convenient to install.
In the present embodiment, preferred, the lateral location that is positioned at junction plate 6 on described back axle supporting seat 5 is provided with adjusts altitude scale 12.When regulating rear-guard drive sprocket 3, by adjusting the reading of altitude scale 12, regulate in time the height and position at rear axle assy 2 two ends, guarantee that the two ends height of rear axle assy 2 is consistent, reasonably rear-guard driving chain 4 is carried out to tensioning adjusting.
Adopt the utility model of said structure, by being nested with stage clip 11 on the lift adjustment screw rod 9 between chassis 1 and back axle support member 10, the two ends of stage clip 11 respectively with chassis 1 and back axle support member 10 butts, have benefited from the supporting role of stage clip 11, support rear axle assy 2, make the tensioning adjusting of rear-guard driving chain 4 become easily simple, after the long-time use of rear-guard driving chain 4, fluff in the time of need to adjusting, supporting role by means of stage clip 11, only need a people to regulate and can realize, alleviated greatly operating personnel's labour intensity, improved adjusting work efficiency, and the simple and reasonable compactness of the utility model, easy for installation, implementation cost is low.
The above, be better embodiment of the present utility model, but the utility model is not limited to above-described embodiment, as long as it reaches technique effect of the present utility model with any same or similar means, within all should falling into protection domain of the present utility model.