CN1199142A - Stepless speed varying pump body device - Google Patents

Abstract

A pump body apparatus with stepless speed variation features that the pump body of crank connecting rod mechanism is wholly supported by bearing installed in through hole perpediculart to left and right supporters, making the pump body rotating freely. If crankshaft drives connecting rod to make piston do reciprocating motion, controlling the resistance generated by working medium in cylinder to make piston reach top stop point difficultly can determine the differential rotation motion of crankshaft, cylinder and driven body. When the pressure in cylinder is too high to make piston reach top stop point, the rotational speed of driven body is equal to that of crankshaft. Its advantages are small size and low cost.

Description

A kind of stepless speed varying pump body device

The present invention relates to a kind of stepless speed varying pump body device

Generally be to produce the compressor that power (as motor, motor) is transmitted to gas or liquid working substance in existing gas or liquid working substance stepless speed changes devices by power plant, promoting gas or liquid working substance kinetic pump rotation work done by the gas of the high pressure that it produced or liquid working substance, the compressor of this device and kinetic pump weight are big, volume is big, deficiency in the manufacture cost height, Here it is gas or liquid stepless speed changes devices.

Main purpose of the present invention, be to provide and replace gas or the liquid compressor is gentle or a kind of stepless speed varying pump body device of liquid kinetic pump, can directly drive its complete machine pump housing rotation by power plant (as motor or motor), in rotary course, be that what that enter gas in the cylinder body or liquid working substance by control are determined, it makes the stepless change that the speed of crankshaft rotating produces with the different of cylinder block rotational speed, it can save whole volume and weight, simultaneously, also can reduce the integral production cost.

A kind of stepless speed varying pump body device provided by the present invention, its be a kind of the pump housing complete machine frame of connecting rod in through hole perpendicular to two left and right sides supports, make its pump housing freely to rotate in the bearing in left and right sides bracket holes is housed the inside.But make reciprocating motion of the pistons as the turning crankshaft drivening rod, the resistance size that the size by gas in the control cylinder or liquid working substance amount is produced when making the variation in pressure in the cylinder rise or descend reaches when making the piston stroking upward stroke that top dead center is very difficult to be decided bent axle and cylinder body and rotatablely moved by the differential of kinetoplast.When the pressure in the cylinder was zero, the turning crankshaft drivening rod made reciprocating motion of the pistons, at this moment, can not make by kinetoplast and rotate.When the turning crankshaft drivening rod greater than zero time of the pressure in the cylinder, make reciprocating motion of the pistons, at this moment can drive by kinetoplast and rotate, when the pressure in the cylinder body causes piston because resistance can not reach top dead center position too greatly the time, the speed of being rotated by kinetoplast and the rotating speed of bent axle equate.Because a kind of stepless speed varying pump body device of the present invention has special design, so on use is implemented, have the following advantages:

1. because this case is the pump housing by crankshaft ﹠ connecting, the complete machine frame is in the hole perpendicular to two left and right sides supports, make its pump housing freely to rotate in the inside of the bearing in left and right sides bracket holes is housed, can directly control the size of the unlatching mouth of output total valve during use, make the changes in flow rate of gas or liquid working substance realize infinite variable speed, because of part is few, the surface friction drag that is produced is little, so wear rate is also very low.

2. because complete machine length and width have been omitted in this case, so promptly minimizing is many relatively for its structural volume, overall structure promptly alleviates many relatively.

3. because this case can be omitted a lot of Pump Body Parts, so can save manufacture cost.

Further specify structure characteristic of the present invention and purpose below in conjunction with accompanying drawing.

Brief Description Of Drawings:

Fig. 1 is the basic structure schematic representation of a kind of stepless speed varying pump body device provided by the present invention.

Fig. 2 is the principle of rotation figure of a kind of stepless speed varying pump body device provided by the present invention.

Please see that it mainly is provided with the through hole 18,20 perpendicular to frame on frame 15,16 as shown in Figure 1, the through hole the inside is equipped with roller bearing 19,21 makes passive axon 22,14 be vertically mounted on the roller bearing the inside, and the contact of rolling.In by kinetoplast 11 central authorities, be provided with a power that vertically passes bearing 12,13 and be input into axle 1, crank 2, connnecting rod big end Xiao 3, connecting rod 4, connecting rod bottom-end bearing 5, piston Xiao 6, small end bearing 7, piston 8, piston Xiao hole 9, to-and-fro motion in the cylinder body 23 that piston 8 can be provided with in by kinetoplast 11.

When rotational power is input into axle 1 the time, crank 2, connnecting rod big end Xiao, connecting rod 4 have been driven, make piston 8 to-and-fro motion, if control at this moment enters in what or the control output cylinder of gas in the cylinder 23 or liquid working substance the size of the outlet total valve flow of 23 gas or liquid working substance the fluctuation that pressure is arranged in the cylinder is changed, thereby produce resistance when making piston 8 upward strokes, drive therefrom by kinetoplast 11 and follow the crankshaft-link rod rotation.

When no gas or liquid working substance and pressure in the cylinder 23 were zero, piston 8 upward strokes are piston 8 non-resistances during to top dead center, at this moment power be input into axle 1 and crank 2, connnecting rod big end Xiao 3 can only rotation, can not drive by kinetoplast 11 and rotate.

When sucking gas or liquid working substance on a small quantity in the cylinder 23, during piston 8 upward strokes, the working medium flow of control delivery outlet total valve, make the piston stroking upward stroke be subjected to resistance, at this moment power is input into axle 1 and crank 2, connnecting rod big end Xiao 3, connecting rod 4 and piston 8 just drive and are rotated by kinetoplast 11, at this moment, power is input into axle 1 and by the rotating speed of kinetoplast 11 a great difference is arranged, if enter gas in the cylinder 23 or liquid working substance amount many time and control when being reduced by the delivery outlet total valve flow on the kinetoplast, can cause gas too much in the cylinder 23 or liquid working substance to remain in a standstill, thereby the pressure in the cylinder 23 is sharply risen, piston 8 upward strokes are subjected to very big resistance, this just drives and is rotated by kinety system, along with enter gas in the cylinder 23 or liquid working substance gradually increase the rotating speed that is also approached line shaft 1 by the rotating speed of kinetoplast accordingly.

When the gas that sucks in the cylinder 23 or liquid working substance how to can stop piston 8 upward strokes the time to top dead center, power is input into axle, crank 2, connnecting rod big end Xiao 3, connecting rod 4 and piston 8 and is forced to drive and rotate together by kinetoplast 11, and power at this moment is input into axle 1 and equal by kinetoplast 11 rotating speeds.

Please see Figure 2 for the rotation principle schematic of a kind of stepless speed varying pump body device provided by the present invention.When position of piston was at top dead center shown in Fig. 2-1, the check valve of air inlet or liquid working substance was closed; Output gas or liquid working substance valve opening; Output gas or liquid working substance master control valve opening.

When clockwise rotating bent axle drive descent of piston, air inlet or liquid working substance safety check are opened in a gas or the liquid working substance suction cylinder by suction by vacuum action, export the check valve of gas or liquid working substance simultaneously and close shown in Fig. 2-2.

Shown in Fig. 2-3 when bent axle when clockwise continuing rotation, piston is up by lower dead center, under the effect of pressure, the check valve of air inlet or liquid working substance is closed, at this moment the output gas or the master control valve of liquid working substance are closed in advance, the interior gas of suction cylinder or the outlet of liquid working substance are blocked, and be compressed.

When continuing compression piston stroking upward at this moment, gas or liquid working substance be subjected to very big resistance shown in Fig. 2-4, so the sidewall of piston promotes by the sidewall of the cylinder body on the kinetoplast, drive is rotated by kinetoplast, because the pressure in cylinder is huge, make piston not reach top dead center, bent axle at this moment and equated by the kinetoplast rotating speed.

Shown in Fig. 2-5 when the master control valve of output gas or liquid working substance is opened on a small quantity; Pressure in the cylinder body weakens to some extent, at this moment piston can flow out slowly up with working medium by original position, because the pressure in the cylinder is greater than zero, so the sidewall of piston is still rotated by kinetoplast promoting to be driven by the cylinder body madial wall on the kinetoplast, only piston can reach top dead center and cross top dead center descending, the rotating speed that makes bent axle is greater than having been formed differential motion by the rotating speed of kinetoplast, total delivery outlet valve opening mouth is big more, just the multi-cylinder internal pressure is just low more more for the working medium that flows out, the rotating speed of bent axle and differed far away more by the rotating speed of kinetoplast; Otherwise, the mouth of total delivery outlet valve opening is more little, the working medium that flows out is just few more, pressure in the cylinder is just big more, speed of crankshaft and approaching more by the kinetoplast rotating speed is so the whole pump housing is controlled the big and little of total delivery outlet valve opening in rotary course, can make bent axle and be produced different rotating speeds, form stepless speed change by kinetoplast.

Fig. 2-6 shows that the whole pump housing continues rotation, is differential motion owing to bent axle and by kinetoplast, so the piston continuation is descending, inlet check valve is opened, and the delivery outlet closure of check ring sucks gas or liquid working substance.

The pump housing shown in Fig. 2-7 continues the up compression working medium of rotary-piston, because total delivery outlet valve is closed fully, make working medium generation high pressure in the cylinder, be subjected to very big resistance during piston stroking upward, do not reach the top dead center sidewall drive of the sidewall promotion cylinder body of piston at this moment and rotated together by kinetoplast, bent axle has equated again with the speed of being rotated by kinetoplast.

If Fig. 2-8 is shown in the position that total output valve is all opened in the pump housing rotary course, the working medium that piston sucked is all extruded outside the cylinder rapidly, do not produce pressure in the cylinder or underpressure is seldom arranged so that the sidewall of the base of living promote in the cylinder body sidewall and during by the quality of kinetoplast, passive cognition slowly stops operating, and bent axle is input at power and continues rotation under the drive of axle, and the position that just looks like automobile neutral gear when idling is the same.

Claims (4)

1, a kind of stepless speed varying pump body device is by the through hole 18,20 that is provided with on frame 15,16 perpendicular to frame, and the through hole the inside is equipped with roller bearing 19,21 makes passive axon 22,14 be vertically mounted on the roller bearing the inside, and the contact of rolling.In by kinetoplast 11 central authorities, be provided with a power that vertically passes bearing 12,13 be input into axle 1, crank 2, connnecting rod big end Xiao 3, connecting rod 4, connecting rod bottom-end bearing 5, piston Xiao 6, small end bearing 7, piston 8, piston Xiao hole 9, cylinder body 23 form to-and-fro motion in the cylinder body 23 that piston 8 can be provided with in by kinetoplast 11.

2, be input into axle 1 the time when rotational power, crank 2, connnecting rod big end Xiao, connecting rod 4 have been driven, make piston 8 to-and-fro motion, if control at this moment enters in what or the control output cylinder of gas in the cylinder 23 or liquid working substance the size of the outlet total valve flow of 23 gas or liquid working substance the fluctuation that pressure is arranged in the cylinder is changed, thereby make when living basic 8 upward strokes and produce resistance, drive therefrom and followed crankshaft-link rod by kinetoplast 11 and rotate.

3, when no gas or liquid working substance and pressure in the cylinder 23 are zero, piston 8 upward strokes are piston 8 non-resistances during to top dead center, at this moment power be input into axle 1 and crank 2, connnecting rod big end Xiao 3 can only rotation, can not drive by kinetoplast 11 and rotate.

When sucking gas or liquid working substance on a small quantity in the cylinder 23, during piston 8 upward strokes, the working medium flow of control delivery outlet total valve, make the piston stroking upward stroke be subjected to resistance, at this moment power is input into axle 1 and crank 2, connnecting rod big end Xiao 3, connecting rod 4 and piston 8 just drive and are rotated by kinetoplast 11, at this moment, power is input into axle 1 and by the rotating speed of kinetoplast 11 a great difference is arranged, if enter gas in the cylinder 23 or liquid working substance amount many time and control when being reduced by the delivery outlet total valve flow on the kinetoplast, can cause gas too much in the cylinder 23 or liquid working substance to remain in a standstill, thereby the pressure in the cylinder 23 is sharply risen, piston 8 upward strokes are subjected to very big resistance, this just drives and is rotated by kinety system, along with enter gas in the cylinder 23 or liquid working substance gradually increase the rotating speed that is also approached line shaft 1 by the rotating speed of kinetoplast accordingly.

When the gas that sucks in the cylinder 23 or liquid working substance how to can stop piston 8 upward strokes the time to top dead center, power is input into axle, crank 2, connnecting rod big end Xiao 3, connecting rod 4 and piston 8 and is forced to drive and rotate together by kinetoplast 11, and power at this moment is input into axle 1 and equal by kinetoplast 11 rotating speeds.

4, can a machine single cylinder or machine multi-cylinder composition according to above claim one, two, three described a kind of stepless speed varying pump body devices.