CN1274806A - Combined self-lubricating unloading rotating machine with eccentric shaft - Google Patents

Abstract

In the rotating machine, a driving pin positioned on the main shaft of cylinder has its top end crossed with the inner surface of outer driving ring, there is a piston matched with the outer side of the driving ring, and a wiper inside a groove on the cylinder separates the cavity between the cylinder and the piston into a pressure cavity and a fluid entering cavity. There are fluid inlets and outlets beside the wiper and on the cylinder, pressure regulating hole with relief valve on the cylinder and communicated with the inlets and outlets, and lubricating part communicated with the pressure cavity. The rotating machine has low cost and high efficiency.

Description

Combined eccentricity axle confession pressure lubricating discharging type rotary piston machine

The present invention relates to a kind of rotary piston machine, especially a kind of combined eccentricity axle confession pressure lubricating discharging type rotary piston machine.

At present, making in the society and use in rotary piston machine such as various rotor air pump, rotor water pump, rotor oil pump, rotor vacuum pump, rotary engine etc., all adopt integral one-piece mainshaft, its piston is arranged on the eccentric shaft, the axis of piston is changeless to the throw of eccentric of axle, the rotary piston machine of this structure though can realize its task, has following unsurmountable defective.The one, because eccentric shaft is an overall structure, the dynamic balancing of axle own is difficult to resolve determines, and easily causes influence of vibration its working life during work; The 2nd, exist radial and axial end face seal poor, leakage rate is big, causes working efficiency to reduce; The 3rd, owing to do not set up the confession pressure lubricating, its friction is bigger, when force feed liquid, because the incompressibility of liquid, when entering liquid in the vane slot, easily cause the motion of main shaft resistance to become big, increase its load, influence complete machine and run well, its working efficiency is reduced, and reduce its working life.

Task of the present invention is to provide a kind of low cost of manufacture, long service life, and high working efficiency can be carried various fluids and can be realized self dynamically balanced combined eccentricity axle confession pressure lubricating discharging type rotary piston machine.

Task of the present invention realizes with following scheme.Be positioned with main shaft by the bearing that is positioned on the cylinder cap in the center portion of cylinder body, on the main shaft of cylinder body inboard, be positioned with drive pin, the top of drive pin is crossing with the inner ring surface arc of the driving ring that is arranged at its outside, arranged outside at driving ring has the piston that is slidingly matched with it, during main axis rotation, piston outer ring surface with respect to the drive pin place will be crossing with the inner ring surface sealing of cylinder body at drive pin and under by the driving of driving ring, on cylinder body, have and be provided with the vane slot that an end is the slide plate of positioning head within it, positioning head on this slide plate is placed in the positioning hole that is provided with on the piston, by slide plate the space blocking-up that forms between cylinder body and the piston is entered two spaces, chamber for pressure chamber and fluid, the cylinder body of slide plate one side is provided with fluid and advances the fluid inlet apertures that the chamber is connected, cylinder body at the slide plate opposite side is provided with the fluid output that is provided with one-way valve within it that is connected with pressure chamber, the cylinder body of fluid outlet is provided with the pressure limiting regulator hole that is provided with the pressure limiting one-way valve within it that is connected with fluid output, cylinder body is provided with and the pressure limiting regulator hole, the unloading hole that vane slot and fluid inlet apertures are connected, each lubricant housings are connected with pressure chamber to realize the task of confession pressure lubricating by lubrication hole respectively.

Owing to taked such scheme, fluid enters fluid from fluid inlet apertures and advances the chamber, under the promotion of main axis rotation power, progressively send into the fluid alternation in the pressure chamber and form high pressure, this high-pressure liquid overcomes the active force of one-way valve and sends from fluid output, thereby finish task with the fluid high-pressure ejection, high-pressure liquid in the said process in the pressure chamber is sent into bearing by lubrication hole respectively, thereby the task of confession pressure lubricating is realized in each lubricant housings such as slide plate, when surpassing qualification pressure, the pressure of fluid output will open the pressure limiting one-way valve automatically, fluid in the fluid output is back in the fluid inlet through unloading hole, thereby finishes the task of automatic deloading pressure limiting.In said process, since between piston and the driving ring for being slidingly matched, have only drive pin during main axis rotation and drive driving ring rotation and the eccentric force that produces acts on the main shaft, it is compared its wobbler action power and is reduced largely with the eccentric shaft of integrative-structure, therefore can effectively realize self dynamically balanced task.Owing to taked such scheme, the present invention can not only effectively realize task, and had the characteristics of high working efficiency, the off-load of confession pressure lubricating with fluid high-pressure ejection, have simultaneously that complete machine structure is simple, low cost of manufacture, be suitable for universal characteristics.

The present invention is further described as follows below with reference to accompanying drawing.

Accompanying drawing 1 has provided structural representation of the present invention;

Accompanying drawing 2 has provided the structural representation of the slide plate in the accompanying drawing 1;

Accompanying drawing 3 has provided A-A in the accompanying drawing 1 to the sectional structure schematic representation.

In the accompanying drawings, 1 is cylinder body, 2 is piston, 3 is pressure chamber, 4 is driving ring, 5 is main shaft, 6 is drive pin, 7 is supporting leg, 8 is positioning hole, 9 is slide plate, 10 is fluid inlet apertures, 11 is unloading hole, 12 are pressure limiting adjustment screw, 13 pressing springs that exceed, 14 pressure balls that exceed, 15 is pressure spring, 16 for adjusting screw, 17 is single-direction balls, 18 is screw, 19 is fluid output, 20 is positioning hole, 21 enter the chamber for fluid, 22 is vane slot, 23 are confession pressure lubricating hole, 24 for being decided to be head, 25 is bolt, 26 is seal ring, 27 is line shaft, 28 are confession pressure lubricating hole, 29 and 30 is the front and back cylinder cap, 31 is bearing.

With reference to the accompanying drawings, center portion at cylinder body 1 is positioned with the main shaft 5 that is connected with line shaft 27 at the one end by the bearing 31 on the cylinder cap 29 and 30 before and after being positioned at, on main shaft 5 and with respect to inner chamber of cylinder block two end parts parallel, be positioned with two drive pins 6, arranged outside at drive pin 6 has the driving ring 4 that is driven by drive pin 6, arranged outside at driving ring 4 has the piston 2 that is slidingly matched with it, place, upper right side at piston 2 has positioning hole 20, on cylinder body, have vane slot 22 with respect to positioning hole 20 places, an end that is slidingly matched with it is housed in vane slot 22 to be positioning head 24 and slide plate 9 that be provided with lubrication groove 23, and make positioning head on this slide plate 9 place positioning hole 20 on the piston 2, by slide plate 9 the space blocking-up that forms between cylinder body 1 and the piston 2 is entered 21 2 spaces, chamber for pressure chamber 3 and fluid, on cylinder body 1, have with fluid and advance the fluid inlet apertures 10 that chamber 21 is connected with respect to slide plate 9 downside places, on cylinder body 1, have the through hole that is connected with pressure chamber 3 with respect to slide plate 9 upsides, be provided with in this through hole upper end portion with its screw-thread fit and therein heart position have the adjustment bolt 16 of fluid output 19, be provided with pressure spring 15 in the lower end of adjusting bolt 16, the underpart of this pressure spring 15 is pressed to be attached on the single-direction balls 17 that is arranged at the through hole lower end mouth and is formed one-way valve structures, on cylinder body 1, have the through hole that is connected with fluid output 19, in this through hole, be provided with by pressure limiting ball 14, the pressure limiting one-way valve that screw 12 is formed is adjusted in pressure limiting spring 13 and pressure limiting.By the unloading hole 11 that is arranged on the cylinder body vane slot 22, fluid inlet apertures 10 and pressure limiting one-way valve through hole are connected.Slide plate 9 is provided with the confession pressure lubricating hole 23 that is connected with pressure chamber 3, is connected with pressure chamber 3 by lubrication hole 28 respectively between bearing 31, driving ring 4 and the piston 2, to realize the confession pressure lubricating.

With reference to the accompanying drawings, when the present invention works, main shaft 5 is rotation in the direction of the clock under the effect of line shaft 27, and by 4 rotations of drive pin 6 drive driving rings, in this process because between driving ring 4 and the piston 2 for being slidingly matched, piston 2 does not rotate, piston region with respect to drive pin 6 places in rotary course will intersect with cylinder body 1 sealing under the effect of driving ring 4, simultaneously in rotary course slide plate 9 in vane slot 22 along groove to moving reciprocatingly, is that the space of two alternations is that fluid enters chamber 21 and 3 two spaces of pressure chamber by slide plate 9 with cutting off between cylinder body 1 and the piston 2, fluid constantly enters fluid by fluid inlet apertures 10 and advances in the chamber 21, and in rotary course, constantly send into the fluid alternation in the pressure chamber and form high pressure, this high-pressure liquid overcomes the pressure of single-direction balls 17 and sends from fluid output 19, form highly pressurised liquid, said process main shaft 5 whenever revolves three-sixth turn finishes the one action circulation, go round and begin again, the fluid that constantly enters from fluid inlet apertures 10 is become high-pressure liquid from fluid output 19, send, thereby finish the task that fluid high-pressure is sprayed.In said process, the high-pressure liquid that forms in pressure chamber will be respectively by confession pressure lubricating hole 23 and 28, enter between driving ring 4 and the piston 2, between bearing 31 and slide plate 9 and the vane slot 22, thereby realize the task of confession pressure lubricating, in above-mentioned work engineering, when slide plate 9 when move in vane slot 22 bottoms, the groove inner fluid is got back in the fluid inlet 10 by unloading hole 11, thereby realizes the task of off-load.When the pressure of fluid output 19 surpasses qualification pressure, under the effect of this pressure, will open automatically by pressure limiting ball 14, pressure limiting spring 13 and pressure limiting and adjust the pressure limiting adjustment valve that screw 12 is formed, fluid in the fluid output is back in the fluid inlet 10 through unloading hole 11, thereby finishes the task of off-load pressure limiting.

Claims (5)

1, a kind of combined eccentricity axle confession pressure lubricating discharging type rotary piston machine, mainly by cylinder body, main shaft, the fluid inlet and outlet hole, drive pin, driving ring and fire plug are formed, it is characterized in that, center portion at cylinder body is positioned with main shaft, be positioned with drive pin on the main shaft in the cylinder body inboard, the top of drive pin is crossing with the inner ring surface arc of the driving ring that is arranged on its outside, the arranged outside of driving ring has the piston that is slidingly matched with it, on cylinder body, have and be provided with the vane slot that an end is the slide plate of positioning head within it, this positioning head is placed in the positioning hole that is provided with on the piston, by slide plate the space blocking-up that forms between cylinder body and the piston is entered two spaces, chamber for pressure chamber and fluid.

2, combined eccentricity axle confession pressure lubricating discharging type rotary piston machine according to claim 1, the cylinder body that it is characterized in that described slide plate one side is provided with fluid and advances the fluid inlet apertures that the chamber is connected, and is provided with the fluid output that is provided with one-way valve within it that is connected with pressure chamber at its opposite side.

3, according to claim 1 and 2 described combined eccentricity axle confession pressure lubricating discharging type rotary piston machines, it is characterized in that described cylinder body is provided with the pressure limiting regulator hole that is provided with the pressure limiting one-way valve within it that is connected with fluid output.

4, according to claim 1 and 3 described combined eccentricity axle confession pressure lubricating discharging type rotary piston machines, it is characterized in that described cylinder body is provided with the unloading hole that is connected with pressure limiting regulator hole, vane slot and fluid inlet apertures.

5, combined eccentricity axle confession pressure lubricating discharging type rotary piston machine according to claim 1 is characterized in that being connected with pressure chamber by lubrication hole respectively in each lubricant housings of described rotary piston machine.

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