Turnbarrel separation type intermittent use inflation pumpTechnical field
The invention belongs to automobile inflator pump technical field, specifically a kind of automobile batch (-type) method of work inflation pump.
Background technology
Inflation pump is one of main constituent elements of heavy-duty truck brake system, is the important leverage of safe driving.Annexation between existing inflation pump and automotive engine has two kinds, and one is connected by pulley drive, and another kind is connected by gear transmission.No matter be that pulley drive connects, or gear transmission connects, existing inflation pump is directly connected with automotive engine all the time, in automotive engine front crankshaft Pulley or automobile engine body special transmission gear drive under, inflation pump is with automotive engine synchronized operation, automotive engine does not stop, and its work is more than.Because automobile is only at long descending, just source of the gas can be consumed in a large number during the brake of abrupt slope, brake when wherein meeting obstacle and stop, source of the gas needed for blowing a trumpet etc. is short-time characteristic, finiteness, because inflation pump is ceaselessly inflating always, and the amount of air of air tank is limited, for ensureing the safety of its system, normal operation, when in system, the air pressure of (in air tank) exceedes predetermined peak, unnecessary superpressure part have to discharge decompression automatically by the superpressure blow off valve be arranged on air tank, such systemic circulation is reciprocally inflated, exhaust, not only waste a large amount of sources of the gas in vain, the emptier burden increasing automotive engine simultaneously, waste fuel oil, most importantly a large amount of idle work that allowed air pump do, air pump is is still wearing and tearing while flogging a dead horse, not only increase maintenance cost on foot, and aggravation shortens its service life, this seems not too suitable already in the today of advocating energy-saving consumption-reducing energetically, improve very urgent.
Summary of the invention
Object of the present invention is exactly provide a kind of turnbarrel separation type intermittent use inflation pump alleviating automotive engine burden, saving fuel oil, prolongation air pump service life and reduce maintenance cost for above-mentioned weak point.
Technical solution of the present invention is: a kind of turnbarrel separation type intermittent use inflation pump, comprise inflation pump and be installed on the driving cog wheel disc on this inflation pump bent axle, it is characterized in that: described in the bent axle be positioned at outside inflation pump crankcase comprise crank shaft journal and the curve tooth of inner side in outside, crank shaft journal is fixed with bearing or is set with copper sheathing, and crank shaft journal outer end is provided with annular groove; The curve gear cover of bent axle is equipped with the contact cover plate of cooperation, and contact cover plate outer end is provided with passive tooth wheel disc, and chamber, inner side is built with pull back spring; Contact cover plate overcoat has the tubular electromagnetic motor of belt coil; Also comprise a connection jacket casing be connected between inflation pump crankcase and engine body shell, electromagnetic motor is fixed on and connects in jacket casing; Be provided with driving tooth wheel disc inside driving cog wheel disc, and contact cover plate interval and coordinate; Packing ring, stop snap ring and transmission gear disk cover plate is provided with outside driving cog wheel disc.
The present invention is owing to being provided with curve tooth in the inner side being positioned at crank shaft journal outside the bent axle outside inflation pump crankcase, be fixed with bearing at crank shaft journal or be set with copper sheathing, crank shaft journal outer end is provided with annular groove, the contact cover plate of cooperation is housed at curve gear cover, contact cover plate outer end is provided with passive tooth wheel disc, chamber, inner side is built with pull back spring, contact cover plate overcoat has the tubular electromagnetic motor of belt coil, electromagnetic motor is fixed on and connects in jacket casing, connecting jacket casing is connected between inflation pump crankcase and engine body shell, be provided with and contact the driving tooth wheel disc that cover plate interval coordinates inside driving cog wheel disc, packing ring is provided with outside driving cog wheel disc, stop snap ring and transmission gear disk cover plate, thus when air reservoir internal pressure is lower than setting value, in autonomous cruise speed system, electromagnetic motor remains static, be arranged on contact cover plate on air pump bent axle under the effect of pull back spring, contact cover plate rotates forward meshing with driving cog wheel disc, inflation pump is started working, when the bar pressure in air tank is more than or equal to default maximum amount definite value, autonomous cruise speed system is started working, contact cover plate rotates backward under the magnetic action of electromagnetic motor, compression retracteding position spring moment is separated with driving cog wheel disc, inflation pump bent axle loses the transmission of power of driving cog wheel disc and quits work voluntarily, now, driving cog wheel disc, under driving engine dedicated gear drives, dallies in air pump crank shaft journal position.The present invention has and alleviates automotive engine burden, saving fuel oil, extends inflation pump service life and reduce the feature of inflation pump maintenance cost exponentially, thoroughly overturn traditional inflation pump mode of operation, allowed the useful life of inflation pump perform in automobile brake system ultimate attainment.The present invention is mainly used in the service intermittent method inflation pump of autotruck.
Accompanying drawing explanation
Fig. 1 is geared portions structural representation of the present invention.
In figure: 1, bent axle, 2, crank shaft journal, 3, annular groove, 4, electromagnetic motor, 5, power lead, 6, coupling bush, 7, power lead outer vent, 8, packing ring, 9, pull back spring, 10, cover plate is contacted, 11, pull back spring installs cavity, 12, driving cog wheel disc, 13, bearing, 14, packing ring, 15, stop snap ring, 16, transmission gear disk cover plate.
Detailed description of the invention
As shown in Figure 1.Inflation pump is positioned at car engine down side, is single gear transmission work.A kind of turnbarrel separation type of the present invention intermittent use inflation pump comprises inflation pump, the bent axle 1 be positioned at outside inflation pump crankcase, electromagnetic motor 4, contact cover plate 10, pull back spring 9, bearing 13, driving cog wheel disc 12 and transmission gear disk cover plate 16, wherein, inflation pump crankcase part is same as the prior art.Bent axle 1 comprises the crank shaft journal 2 in outside and the curve tooth of inner side, and crank shaft journal 2 is fixed with bearing 13, and crank shaft journal 2 also can be set with copper sheathing, and crank shaft journal 2 outer end is provided with annular groove 3.The curve gear cover of bent axle 1 is equipped with the contact cover plate 10 of cooperation, contact cover plate 10 outer end is provided with passive tooth wheel disc, contact cover plate 10 inner chamber is in the outer part provided with the curved groove coordinated with bent axle 1 curve tooth, inner chamber is in the inner part that pull back spring installs cavity 11, pull back spring is installed cavity 11 and pull back spring 9 is housed, and packing ring 8 is housed inside pull back spring 9.Contact cover plate overcoat has the tubular electromagnetic motor 4 of belt coil, and electromagnetic motor 4 is power lead 5 in addition.Connecting jacket casing 6 one end is connected on inflation pump crankcase, and the other end is connected with engine body shell, connects outside jacket casing 6 and is provided with power lead outer vent 7, and electromagnetic motor 4 is fixed on and connects in jacket casing 6.Be provided with driving tooth wheel disc inside driving cog wheel disc 12, driving tooth wheel disc coordinates with the passive tooth wheel disc contacting cover plate, and is that interval coordinates.Be provided with packing ring 14, stop snap ring 15 and transmission gear disk cover plate 16 outside driving cog wheel disc 12, bearing 13 or copper cover inlay, in driving cog wheel disc axis hole, are fixed by packing ring 14, stop snap ring 15.
State one: when the bar pressure in inflation pump air tank is lower than rated value (seven barometric pressures) preset, in autonomous cruise speed system, electromagnetic motor 4 remains static, be arranged on contact cover plate 10 on air pump bent axle 1 under the effect of pull back spring, rotate forward (electromagnetic core rotation) and driving cog wheel disc 12 is meshing, and inflation pump is started working.
State two: when the barometric pressure in inflation pump air tank rises to predetermined maximum amount definite value (8.5 barometric pressures), autonomous cruise speed system is started working, contact cover plate 10 rotates backward under the magnetic action of electromagnetic motor 4, compression retracteding position spring 9 moment is separated with driving cog wheel disc 12, and inflation pump bent axle 1 loses the transmission of power of driving cog wheel disc 12 and quits work voluntarily.Now, driving cog wheel disc 12, under driving engine dedicated gear drives, dallies in air pump crank shaft journal 2 position.
State three: when autonomous cruise speed system breaks down, the state that inflation pump will remain " state one ", will return to uninterrupted operation continuously, until failture evacuation.