JPH04312253A - High-performance hydraulic machine - Google Patents

Abstract

PURPOSE:To provide a high-performance hydraulic machine in which a rotary assistor capable of amplifying input is provided. CONSTITUTION:An eccentric assisting drive gear 22 of a large diameter is engaged with a drive gear 21 of a small diameter by which a rotary assistor connected to the driving shaft of a hydraulic machine body is driven by an input shaft 15b that is driven by a prime mover (not shown), and the above eccentric assisting drive gear is integrally connected to a planetary gear 28 having a smaller diameter than this, thereby the torque of the drive gear is amplified and transmitted to the planetary gear 28, so that an amplified output is transmitted to the hydraulic machine from the output side of the planetary mechanism functioning as a driven part.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to fluid machines, and more particularly to fluid machines such as pumps, blowers, compressors, hydraulic conveyors, and pneumatic conveyors.

0002

BACKGROUND OF THE INVENTION Conventional fluid machines have low efficiency and consume a lot of energy.

0003

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a highly efficient fluid mechanical system.

0004

[Means for Solving the Problems] The fluid machine of the present invention includes a rotary booster disposed between a prime mover and a fluid machine main body, and the rotary booster is a rotary booster drive disposed within a housing. The rotary booster drive mechanism is composed of a drive unit equipped with a mechanism, and a driven unit equipped with a planetary mechanism driven by the drive unit and connected to the fluid machine. a gear, and a large-diameter eccentric booster drive gear that engages with the drive gear and revolves around the axis of the driven part while rotating, and the planetary mechanism includes a sun gear that is coaxial with the drive gear; It is characterized by comprising an internal gear having a larger diameter than the sun gear, and a planetary gear having a smaller diameter than the eccentric booster drive gear and rotating integrally therewith.

[0005]

[Operation] The rotational booster for fluid machinery of the present invention amplifies the input torque transmitted to the small-diameter drive gear via the eccentric booster drive gear that has a larger diameter than the drive gear, and uses this amplified torque by the eccentric booster. The increased output is transmitted to the driven part by transmitting it to a planetary gear that has a smaller diameter than the force drive gear and rotates integrally with the power drive gear.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a fluid machine according to the present invention will be described below with reference to the drawings. FIG. 1 shows a block diagram of a fluid machine according to the invention. In FIG. 1, the fluid machine main body 10 is driven by a prime mover 13.
Since the output of is amplified by the rotary booster 15 disposed in the middle and supplied to the fluid machine main body 10, the energy consumption of the fluid machine main body 10 is significantly reduced. The fluid machine main body 10 includes a known pump, blower, compressor, hydraulic conveyor, and air conveyor. Known pumps include positive displacement pumps, such as rotary pumps and piston pumps, and non-positive displacement pumps, which have an impeller in a closed casing. Known blowers and compressors include turbo and positive displacement fans and blowers. In FIG. 2, the rotary booster 15 is housed in a housing 15a, and includes a rotary booster drive mechanism 19 that functions as a drive unit and arranged coaxially.
A planetary mechanism 20 is connected to the rotation booster drive mechanism 19 and functions as a driven portion.

[0007] The rotation booster drive mechanism 19 has a housing 15a.
A small-diameter drive gear 2 is rotatably supported by an input shaft 15b connected to an output shaft 13a of a prime mover 13.
1, and a large-diameter eccentric booster drive gear 22 that eccentrically engages with the drive gear 21 and revolves around the rotation axis of the drive gear 20.

The planetary mechanism 20 includes a sun gear 24 and an internal gear 26 that are concentric with the drive gear 21, and further has a smaller diameter than the eccentric boost drive gear 22 of the rotation boost drive mechanism 19 and rotates integrally with the eccentric drive gear 22 in relation to the wheel axis. At the same time, a plurality of planetary gears 28 are provided which engage with the sun gear 24 and the internal gear 26. The plurality of planetary gears 28 are the carrier 3
0, and the carrier 30 further rotatably supports an eccentric booster drive gear 22 at one end thereof. The balance weight 32 extends outside the outer periphery of the internal gear 26 in the same plane as the eccentric boost drive gear 22 at the other end of the carrier 30 in order to absorb vibrations caused by the rotational movement of the eccentric boost drive gear 22. , shafts 32a, 32
b. Supported by other suitable fixing means. Figure 2
In this embodiment, the internal gear 26 is fixed, and the amplified output is taken out from the output shaft 15c of the sun gear 24 and transmitted to the drive shaft 10a of the fluid machine 10. A lubricant 34 is contained within the housing 15.
At least a portion of the eccentric booster drive gear 22 is in contact with this lubricant.

FIG. 3 shows a basic principle diagram for explaining the operation of the rotary booster 15 shown in FIG. 2. In FIG. There is.

In FIGS. 2 and 3, a small diameter drive gear 21
When driven by the input shaft 15b, the large-diameter eccentric booster drive gear 22 revolves around the axis of the driven shaft 15c while rotating. At this time, since the planet gear 28 is integrally connected to the eccentric boost drive gear 22 in relation to the wheel shaft, the planet gear 28 is rotated by the eccentric boost drive gear 22 with a torque larger than the torque of the small diameter drive gear 21. Then, this increased torque is transmitted to the sun gear 24, and the increased output is transmitted to the output shaft 15c of the sun gear 24.

Particularly in FIG. 3, the internal gear 2
6 is fixed and the carrier 30 is rotated one rotation counterclockwise, the rotational speed and torque of each element will be considered. The number of teeth of the sun gear 24, planet gear 28, internal gear 26, eccentric boost drive gear 51, and drive gear 21, respectively.

0012

[Math 1]

[0013]

[Outside 1] n1, n2, n3 Then, these can be found using the following formula.

[0014]

[Math 2]

When the planet gear 28 rotates 1.5 rotations, the eccentric booster drive gear 22 also rotates 1.5 rotations. When the eccentric booster drive gear 22 rotates once, the rotation speed of the drive gear 21

0
016]

[Outside 2] n4 is obtained from the following equation.

[0017]

[Math 3]

The planetary gear 28 and the eccentric booster drive gear 22 are 1
．． Rotation speed of drive gear 21 when rotating 5 times

[0019]

[Outside 3] n5 is calculated by the following formula

[0020]

[Math 4]

[0021]

[Outside 4] n1' is calculated by the following formula

[0022]

[Math 5]

Assume now that the drive gear is rotated with a torque of 15 kg·cm. At this time, the eccentric boost drive gear 22
, the radius of the planet gear 28, sun gear 24 and drive gear 21 is

[0024]

[Math 6]

[0025]

[Math 7]

[0026]

[Outer 5] Ts is calculated by the following formula

[0027]

[Math. 8]

Power when the drive gear 21 rotates at 1500 revolutions per minute with a torque of 15 kg cm

[0029]

[Outer 6] M1 is calculated using the following formula.

[0030]

[Math. 9]

[0031] At this time, the sun gear is 25.5 kg/cm
of torque per minute.

[0032]

[Math. 10]

[0033]

[Outer 7] M2 is calculated using the following formula.

[0034]

[Math. 11] Therefore, the output amplification factor

[0035]

[Outer 8] S is calculated by the following formula

[0036]

[Math. 12]

[0037]

As is clear from the above, according to the present invention, a high-performance fluid machine can be provided by disposing a rotary booster between the fluid machine main body and the prime mover. In the embodiment, each rotating element and the fixed element are explained as being composed of gears, but it is clear that the rotating elements such as rollers may be used instead of gears. In the embodiment, the planetary gears are shown as directly engaging with the sun gear and the internal gear, but each planetary gear has a first planetary gear that engages with the sun gear and a second planetary gear that engages with the internal gear. configure, first, second
The planetary gears may be configured to engage with each other. Further, although the output of the rotary booster is shown as being taken out from the sun gear of the planetary mechanism, it may be taken out from a carrier connecting the planetary gears. Note that the driven portion may be combined with a second-stage booster, a planetary mechanism, or a differential gear device.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a preferred embodiment of a fluid machine according to the present invention.

FIG. 2 is a basic structural diagram of the rotary booster shown in FIG. 1;

FIG. 3 is a basic principle diagram for explaining the operation of the structure shown in FIG. 2;

[Explanation of symbols]

10 Fluid machine body 13. Prime mover 15 Rotary booster 19 Rotary boost drive mechanism 20 Planetary mechanism 21 Drive gear 22 Eccentric boost drive gear 24 Sangia 26 Internal gear 28 Planetary gear 30 Career 32 Balance weight

Claims (8)

[Claims] 1. A motor comprising: a prime mover; a fluid machine main body driven by the prime mover; and a rotational booster disposed between the prime mover and the fluid machine main body, the rotation booster including a housing; The drive unit includes a drive unit including a rotary booster drive mechanism disposed on the same axis within the housing and a driven unit including a planetary mechanism connected to the rotary booster drive mechanism, the driven unit being coupled to the fluid machine. a small-diameter drive gear in which the rotation booster drive mechanism is connected to the prime mover;
a sun gear comprising a large-diameter eccentric booster drive gear that engages with the drive gear on the inside and revolves around the axis of the drive gear, the planetary mechanism being disposed on the axis of the drive gear; and an internal gear that is concentric with the sun gear, and a planetary gear that is disposed between the sun gear and the internal gear, has a smaller diameter than the eccentric booster drive gear, and rotates together with the eccentric booster drive gear. Characteristic fluid machinery. 2. In claim 1, the planetary mechanism further includes a carrier that supports the planetary gear, one end of the carrier rotatably supports the eccentric booster drive gear, and the other end of the carrier A fluid machine characterized by being equipped with a balance weight. 3. The fluid machine according to claim 1, wherein the internal gear is fixed and the amplified output is taken out from the sun gear. 4. The fluid machine according to claim 1, wherein the fluid machine main body is a pump. 5. The fluid machine according to claim 1, wherein the fluid machine main body is a blower. 6. The fluid machine according to claim 1, wherein the fluid machine main body is a compressor. 7. The fluid machine according to claim 1, wherein the fluid machine main body is a hydraulic conveyor. 8. The fluid machine according to claim 1, wherein the fluid machine main body is an air conveyor.