The double pendulum saddle
Technical field
The utility model relates to a kind of saddle, especially a kind of double pendulum saddle that connects tractor truck and superimposed trailer.
Background technology
Along with the continuous growth of trade of goods activity, transit industry is also developed thereupon, and the most outstanding with the development of mass freight transportation and freight container transportation, thereby has promoted the development of superimposed trailer relevant industries.Saddle is the special purpose parts of various tractor trucks, and it is installed on the vehicle frame before the tractor truck back axle, the coupling that realizes tractor truck and superimposed trailer with separate.Draw gear is used for connecting by lockable mechanism and superimposed trailer towing pin with the anterior load of superimposed trailer, and transmitting tractive power is taken off behind the extension again the device that trailer can be finished connection superimposed trailer towing pin automatically.Present saddle can only be in one-sided swing, and when running into rugged road conditions, saddle and towing pin all need bear bigger pressure, make parts be easy to fatigue, and long-term use will be shortened the life-span of saddle and towing pin.And vehicle cab jolted very much when the saddle of one-sided swing travelled on the bad ground of road conditions, had destroyed the traveling comfort driven and can be handling.
The utility model content
The utility model purpose provides a kind of double-swing double pendulum saddle in order to overcome the deficiency that above-mentioned prior art exists, and makes saddle be suitable for and need use at the vehicle that rugged road is walked.
The technical solution adopted in the utility model is: the double pendulum saddle, comprise support and a seat assembly, latch hook, lock bolt, handlebar are installed in support, support is provided with towing pin introducing port and towing pin mounting hole, described latch hook comprises the long neck of hook, the short neck of hook and base portion, described latch hook is rotatably connected on the pedestal, described base portion is provided with the latch hook extension spring near a side of the short neck of hook, described lock bolt comprises pin jointed end and free end, described lock bolt is arranged on the below of latch hook, and described lock bolt pin jointed end and described handlebar are hinged; Establish two stay bearing plates in described support bottom, two stay bearing plates are provided with through hole, in two through hole, be interspersed with stub, between described two stay bearing plates, be arranged with balance staff in parallel, kingpin bore is established at described balance staff middle part, described stub passes described kingpin bore, at the both sides of the described balance staff shaft shoulder described seat assembly is installed.
Described handlebar is provided with to take off to be hung spacingly, and the edge portion flange of described support is provided with and described taking off hung spacing suitable breach, and described taking off hung spacing the fixing on described breach.
The end of described handlebar is provided with handle.
Described support is provided with chute, and described lock bolt is mobile in chute.
The utility model is compared with the double pendulum saddle of prior art, and its beneficial effect is:
One, double pendulum saddle of the present utility model is owing to be provided with the criss cross balance staff under the saddle panel, make the saddle panel can be around balance staff beat laterally or longitudinally, thereby make the saddle panel can be at left and right directions and fore-and-aft direction canting certain angle, to adapt to rough condition of road surface, and reduce relatively poor road surface to the impact of vehicle, thereby improve the vehicle driving comfort.
Two, the draw gear of double pendulum saddle of the present utility model is designed to draw with pull bar dexterously, when lock bolt was pulled away from the towing pin introducing port by handlebar, the long shank of the key that latch hook rotates and the short shank of the key of latch hook is crossed towing pin introducing port, latch hook was by the free end backstop of lock bolt and be resisted against the free end of described lock bolt.The coupling that realizes tractor truck and superimposed trailer with separate.The cancellation traditional handicraft the lever mode, the utility model double pendulum saddle structure is reasonable, technology is simple, cost is low, simple to operate, safety performance is high.
Description of drawings
Fig. 1 is the latch hook structural representation of the utility model double pendulum saddle.
Fig. 2 is the scheme drawing of the state of pulling of the utility model double pendulum saddle.
Fig. 3 is the part exploded view of the utility model double pendulum saddle.
Fig. 4 is the lateral plan of the utility model double pendulum saddle.
The specific embodiment
Below pass through the specific embodiment, and the utility model is described in further detail by reference to the accompanying drawings.
Shown in Fig. 1-4, the double pendulum saddle structure comprises support 1 and the latch hook 2, lock bolt 3 and the handlebar 4 that are installed in the support 1.The middle part of a pair of stay bearing plate 18, two stay bearing plates 18 of horizontally set is provided with through hole below the panel of support, passes two through hole and is provided with the two-way balance staff device of criss cross.It comprises stub 30 and balance staff 33.The balance staff middle part is provided with kingpin bore, stub 30 puts and interts behind steel pad 31 and the kingpin bush 32 in the kingpin bore of balance staff 33, at the tail end of stub 30 with stub nut pad 34, stub nut 35 fixing and lockings, and at the end of stub 30 again with the fixing slip-off preventing of spring cotter 36.Stub passes the through hole at the middle part of two stay bearing plates, makes balance staff 33 be set in parallel between two stay bearing plates.Be inserted in copper packing 37, bearing lining 38 and a seat assembly 39 on the both sides shaft shoulder of balance staff 33 respectively.The ring portion of propping up seat assembly is enclosed within outside the bearing lining 38, and is fixing with bearing end cap 40 at two ends of balance staff 33, and a seat assembly 39 is fixedly mounted on the both sides shaft shoulder of balance staff 33.
Prop up seat assembly 39 with on the adapter plate that is bolted to the tractor truck crossbeam, towing pin 11 on trailer or the superimposed trailer is fixed in the towing pin mounting hole of support 1 by pin hook 2, make tractor truck and superimposed trailer or trailer pull walking, because the bottom center at pedestal is provided with mutually perpendicular stub and balance staff, make the panel of pedestal to deflect or front and back beat centered by balance staff around stub.When the vehicle uphill/downhill is walked, beat before and after the panel of pedestal, when vehicle travels on rugged road surface, thereby the panel of pedestal adapts to the road surface situation around the stub certain angle that deflects, and reduces Uneven road to the impact of vehicle.
Referring to Fig. 1-2, latch hook is provided with fulcrum 12 and is fixed on the support 1, and a side of the close short neck of hook 21 of the base portion of latch hook is provided with latch hook extension spring 5 can rotate latch hook 2 around fulcrum 12, and an end and the lock bolt 3 of handlebar 4 are hinged, support 1 is provided with chute, and lock bolt 3 is mobile in chute.Handlebar 4 is L shaped structures.Handlebar 4 be provided with take off hang spacing 41 and pull spacing 42, the coupling by the stretching of handlebar 4 being carried out tractor truck and superimposed trailer with separate.When the towing pin 11 of superimposed trailer enters the towing pin mounting hole of double pendulum saddle, latch hook extension spring 5 is shunk, and the short neck of hook 21 of latch hook 2 is resisted against on the lock bolt 3, handles extension spring 6 thereupon and shrinks, handlebar 4 pull spacing 42 indentation, there that are fixed in support 1, realized the coupling of tractor truck and superimposed trailer.On the handle 7 of the extraneous application of force at handlebar 4, handle extension spring 6 and stretch, latch hook extension spring 5 stretches thereupon, makes the long neck of hook of latch hook be resisted against the free end of lock bolt, the taking off of handlebar hung spacing 41 and is fixed in the indentation, there of support 1, thereby realizes separating of tractor truck and superimposed trailer.The cost of this double pendulum saddle is low, technology is simple, simple to operate, safety performance is high.
At the state of pulling, towing pin 11 is fixed in the towing pin mounting hole of support 1 by pin hook 2.The short neck of hook 21 of latch hook 2 is resisted against on the lock bolt 3, and the free end of lock bolt 3 is conditioned screw rod 10 1 end restriction sites, and the pin jointed end of lock bolt 3 and handlebar 4 are hinged, and handlebar 4 shrinks by handling extension spring 6, makes to take off to hang spacing 41 and accurately fix in the breach of support.Realize the coupling of tractor truck double pendulum saddle and tractor truck.
Handle extension spring 6 stretching handlebars 4 when extraneous application of force utilization, make to take off and hang spacing 41 fixings in the breach of support 1.Lock bolt 3 is subjected to the traction of handlebar 4, and toward moving left, lock bolt 3 is disconnected from each other with latch hook 2, is in the pre-hung state this moment.
When the state of pre-hung, latch hook 2 is subjected to latch hook extension spring 5 and shrinks, and is pulled, and rotates along fulcrum 12.The short shank of the key 21 of latch hook is crossed the towing pin introducing port, and the long shank of the key of latch hook is by the free end backstop of lock bolt and be resisted against the free end of lock bolt, and towing pin 11 breaks away from the restriction of latch hooks 2, and the guiding along with latch hook 2 rotates realizes separating of tractor truck and superimposed trailer.
Referring to Fig. 3, on the panel bottom surface of pedestal 1, between two stay bearing plates and the position relative with a seat assembly is provided with a pair of rubber pad 19, and it can be used for keeping face plate of foundation horizontal positioned when static state.When two seat assemblies were placed on the horizontal surface, a pair of rubber pad 19 just compressed the ring portion top of two seat assemblies respectively, makes not beat of face plate of foundation maintenance level.When vehicle travels on rugged road, when left and right sides beat takes place in face plate of foundation, the rubber pad 19 of one side is pressed to two seat assemblies below it, under the driving of downforce, compressive deformation takes place in rubber pad 19, has slowed down impact and the vibration of beat to a seat assembly.