JPH109152A - Rotating device for fluid motor or pump - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify the structure of a rotating device for a fluid motor or pump with the use of a smaller number of component parts by providing through burning a rotor having a housing part defined by a groove of a size covering at least the sliding distance of a vane and the width thereof on the outer peripheries of a fixed shaft and a rotary shaft rotatably, and by dividing the space defined in the rotor between both shafts by the vane. SOLUTION: A fixed shaft 1 and a rotary shaft 2 are opposed to each other with a slant face 11 of the fixed shaft and a conically-slant face 21 of the rotary shaft being adjacent to or slidingly contacting with each other to form an interrupting part 22. A vane 3 is mounted in a groove 23 of the rotary shaft 2 and a rotor 4 is provided through burning rotatably on the outer peripheries of both shafts to thereby define, between the slant face 11 and the conically-slant face 21, a suction space 51 communicating with a suction port 5 and a discharge space 61 communicating with a discharge port 6. In order to rotate the vane 3 together with the rotary shaft 2 while holding it slidable in the groove 23 as well as holding its rotating slidingly- contact edge 31 of one edge in the circumference slidingly contacting with the slant face 11, the vane 3 is provided with a ball 32 and the slant face 11 and the conically- slant face 21 are formed at their tips with locking parts 12 and 24 respectively to receive the ball therein for the sliding engagement thereof.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotating device serving as a drive source for a fluid motor and a pump.

[0002]

2. Description of the Related Art A conventional rotary device serving as a drive source for a fluid motor and a pump is of a vane type in which a rotor having a plurality of vanes inserted therein is eccentrically mounted in a casing and is used by rotating. I have.

[0003] Also, similar to the present invention,
A rotary compressor (JP-A-5-18376) has been filed.

[0004]

The conventional vane type rotary device serving as a drive source for a fluid motor and a pump has a problem that the number of parts is large, the structure is complicated, and miniaturization is difficult.

[0005] The rotary compressor is different from the gist of the present invention because it can be used as a motor.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a rotating device serving as a driving source for a fluid motor and a pump with a small number of components, a simple structure, and easy miniaturization.

[0007]

In order to achieve the above object, a rotating device according to the present invention comprises a pair of linearly opposed shafts, a vane and a rotor. The opposing part is a fixed shaft that can be fixed with an inclined surface having a fluid inlet and a fluid outlet, and the other axis is a conical shaped opposing part, and a part of the conical slope is close to or in sliding contact with the inclined surface A rotatable rotating shaft that has a part formed.A groove is provided through the center of the shaft in the axial direction from the tip of the conical portion of the rotating shaft, and the groove rotates while the vane can slide on one side of the outer circumference to the inclined surface. The rotor is pivotally mounted so as to rotate together with the shaft, and in order to maintain the swingability of the vane, the rotor having a swinging distance of the vane and an accommodating portion having a groove having a width greater than or equal to the fixed shaft and the outer periphery of the rotating shaft. Rotatably mounted on the rotor, and formed between both shafts inside the rotor. Space that is are those having a structure that is divided by the vanes.

In addition, since the rotor is driven by the vane through the vane accommodating portion and rotates together with the rotating shaft, the rotor and the rotating shaft are manufactured by tight fitting, bonding, screwing, or the like, or as a single part in the manufacturing stage. Alternatively, the structure may be integrated.

In the rotating device configured as described above, when used as a fluid motor, the rotating device is formed on the suction port side sandwiched between the vane and the cut-off portion through the suction port of a fixed shaft that is supported and fixed from the outside. When a fluid is supplied to the suction space from the outside, the vane is pushed in the direction of increasing the volume of deposit by the internal pressure, and the rotary shaft rotatably supported from the outside rotates with this movement.

[0010] Then, as the rotation proceeds, when one side of the vane opposite to the center of the shaft passes through the suction port, a new suction space is formed, and the rotational movement is maintained.

When used as a fluid pump, when the rotary shaft is rotated from the outside in the same rotation direction as described above, the vane is driven to rotate, the volume of the suction space is increased, and the fluid is sucked from the outside through the suction port. .

As the rotation proceeds, the suction space leaves the suction port and comes into contact with the discharge port, whereby the fluid is pushed out by the vane and discharged.

When used as a fluid motor or pump as described above, each functions by the reverse action.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings based on embodiments. In the rotating device shown in FIG. 1 as an example, the inclined surface 11 of the fixed shaft 1 and the conical inclined surface 21 of the rotating shaft 2 come into close proximity or sliding contact with each other, and serve as a blocking portion 22 so that both shafts face each other. The vane 3 is mounted in the groove 23 of the rotating shaft 2, and the rotor 4 is rotatably sunk on the outer periphery of both shafts to form a space between the inclined surface 11 and the conical inclined surface 21.
The space in contact with the inlet 5 is the suction space 51, and the space in contact with the outlet 6 is the discharge space 61.

One example is that the vane 3 rotates together with the rotary shaft 2 while the rotary sliding contact side 31 consisting of one side of the outer periphery is slidable on the inclined surface 11 while being kept swingable inside the groove 23. A spherical body 32 on the vane 3, a concave locking portion 12 at the tip of the inclined surface 11 and the conical slope 21,
24 are provided to slidably engage.

Further, it is preferable that the rotary sliding contact side 31 of the vane 3 is chamfered in a circular shape in order to make the sliding contact with the inclined surface 11 smoothly.

Further, in order to maintain the slidability of the vane 3 described above, the rotor 4 is provided with a groove which is longer than the swinging distance and width of the vane 3 to form a housing portion 41 which can freely accommodate the vane 3. However, it may be a groove that penetrates as shown in FIG. 1 or a groove that does not penetrate, which will be described later.

In order to obtain smooth rotation and oscillating properties of each of the above components, it is preferable that the sliding, sliding contact portion or the entire component is made of a low friction material.

In order to prevent leakage of fluid, a seal member may be attached to the gap between the components to improve the efficiency of the fluid motor and the pump.

FIG. 3 shows an example of an alternative to the structure shown in FIG. In this figure, the groove bottom 2 of the rotating shaft 2a is shown.
5 and the outer periphery of the vane 3a other than the rotary sliding contact side 31 may be made to have a circle of the same diameter so as to be swingable, instead of the example described in the column of paragraph 0015.

Further, the accommodating portion 41a of the rotor 4a may be replaced with a groove which does not penetrate.

FIG. 5 shows an example of the structure of the rotor and the rotating shaft 2b obtained by integrating the rotor 4 and the rotating shaft 2 shown in FIG. In this case, the rotation may be performed by the rotating body having the structure shown in FIG.

The rotor 4, shown in FIGS.
The rotary shaft 4a and the rotary shafts 2 and 2a may be integrated by tightly fitting, bonding, or screwing from the outside with screws.

In FIG. 7, the rotating operation of the rotating device shown in FIG. 1 is shown in order from (a) to (f) and from (f) to (a). In order to clarify the internal operation, The rotor 4 is represented by imaginary lines. The fixed shaft 1 is supported and fixed from the outside, the rotating shaft 2 is rotatably supported from the outside, and the position of the rotor 4 is fixed in the axial direction.

When used as a fluid motor, the fixed shaft 1
When the fluid is supplied from outside to the suction space 51 through the suction port 5, the vane 3 is pushed in the direction of increasing the volume by the internal pressure, and the rotating shaft 2 rotates in the direction of arrow A.

In the stages (a) and (b), when the vane 3 passes from the blocking portion 22 to the suction port 5, a pressure stress is applied to both surfaces of the vane 3 across the axis center, and the vane 3 rotates in the anti-rotation direction. Although a force is generated, since the pressure receiving area of the vane 3 is large on the rotation direction side, the rotation in the direction of the arrow A is maintained due to the pressure stress difference, and a new suction space 51 is formed in the stage (c).

The suction space 51 leaving the suction port 5 is
Then, a discharge space 61 is formed, and the internal fluid is pushed out by the vane 3 and discharged from the discharge port 6 as the volume decreases. Further, the fluid leaking from the blocking portion 22 in the anti-rotation direction is also discharged from the discharge port 6.

When used as a fluid pump, the rotary shaft 2
Is rotated from the outside in the direction of arrow A to increase the volume of the suction space 51, and the fluid is sucked from the outside through the suction port 5.

As the rotation progresses, the suction space 51 comes into contact with the discharge port 6 to form a discharge space 61, and the internal fluid is pushed out by the vane 3 and discharged from the discharge port 6 as the volume decreases.

In FIG. 8, the rotating operation of the rotating device shown in FIG. 3 is shown by the same means as described with reference to FIG.

FIG. 9 shows an example of a fluid motor and a pump using the rotating device shown in FIG. The rotating device is housed inside a casing 7, the fixed shaft 1 is fixed by the casing 7, and the rotating shaft 2 c is rotatably fixed via a bearing 8. The rotor 4 is sandwiched by the inner wall of the casing 7 and has a fixed position in the axial direction.

The rotating shaft 2c is extended in length to be exposed to the outside, and is connected to a rotating motion with the outside. By supplying a fluid from the outside to the suction port 5, the rotating shaft 2c is rotated and used as a fluid motor, or the rotating shaft 2c
Is rotated from the outside so that the inlet 5 and the outlet 6
Used as a fluid pump that sucks and discharges external fluid from

FIG. 10 shows an example of a rotating roller using the rotating device shown in FIG. 1 as a fluid motor. The fixed shaft 1b and the roller shaft 1c are supported by the support frame 10 from the outside, and the bearings 8a, 8b, 8c
The outer cylinder 9 is rotatably supported via the.

The rotating shaft 2d and the outer cylinder 9 are fixed to each other to be integral with each other.
Rotates, and can be used for a roller conveyor or the like.

[0035]

Since the present invention is configured as described above, it has the following effects.

In the rotating device according to the first aspect, a fixed shaft,
It is composed of only four parts including a rotating shaft, a vane, and a rotor, and has a simple structure, and can be easily reduced in size.

In the rotating device according to the second aspect, by integrating the rotor and the rotating shaft, displacement of the rotor in the axial direction can be prevented.

[Brief description of the drawings]

FIG. 1 is a front sectional view (a) and a side view (b) showing an example of a rotating device.

FIG. 2 is an exploded perspective view of the rotating device shown in FIG. 1;

FIG. 3 is a front sectional view (a) and a side view (b) showing an example of a rotating device.

FIG. 4 is an exploded perspective view of the rotating device shown in FIG. 3;

FIG. 5 is a front sectional view (a) and a side view (b) showing an example of a rotating device.

6 is an exploded perspective view of the rotation device shown in FIG.

7A and 7B are a side view and a front view showing a rotating operation of the rotating device shown in FIG.

8A and 8B are a side view and a front view showing a rotating operation of the rotating device shown in FIG.

FIG. 9 is a perspective view (a) and a front sectional view (b) showing an example of a fluid motor and a pump.

FIG. 10 is a front sectional view showing an example of a rotating roller.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fixed shaft 1a Fixed shaft 1b Fixed shaft 2 Rotating shaft 2a Rotating shaft 2c Rotating shaft 2d Rotating shaft 2b Rotor and rotating shaft 3 Vane 3a Vane 4 Rotor 4a Rotor 5 Inlet 6 Outlet 7 Casing 8 Bearing 8a Bearing 8b Bearing 8c Bearing 1c Roller shaft 9 Outer cylinder 10 Support frame 11 Inclined surface 12 Locking portion 24 Locking portion 21 Conical slope 22 Blocking portion 23 Groove 25 Groove bottom 31 Rotating sliding edge 32 Sphere 41 Housing 41a Housing 51 Suction space 61 Ejection space

Claims (2)

[Claims] A pair of linearly opposed shafts (1) (2)
And a vane (3) and a rotor (4), and one of the shafts is a fixed shaft (1) whose opposite portion is an inclined surface (11) having a fluid inlet (5) and a fluid outlet (6). The other axis is a rotating shaft (2) whose opposite part is conical, and a part of the conical slope (21) is rotatable close to or in sliding contact with the inclined surface (11), and the rotating shaft (2) A groove (23) is provided extending axially from the tip of the conical portion in the axial direction in the axial direction, and a vane (3) is provided in the groove (23) with one side of the outer circumference inclined surface (1).
The rotor (4), which is swingably mounted so as to be slidable on 1) and has an accommodating portion (41) for the vane (3), is rotatable around the outer periphery of the fixed shaft (1) and the rotating shaft (2). A rotating device for a fluid motor and a pump having a structure sintered in the fluid. 2. The fluid motor and pump rotating device according to claim 1, wherein the rotating device has a structure in which the rotor (4) and the rotating shaft (2) are integrated.