JPS624641Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a rocking piston type machine driven by compressed air, and is used as a power source for oil pumps, etc. in petroleum complexes, etc., where electricity cannot be used unless complete explosion-proof equipment is installed. It is about the machine as a.

Traditionally, in Type 1 disaster prevention areas with strict regulations,
When pumping oil or the like, a reciprocating double diaphragm pump driven by compressed air from a compressor is used because electricity cannot be used as a power source.

By the way, since this pump has a reciprocating diaphragm structure, it not only requires a large amount of compressed air to drive it, but also inevitably becomes larger.

The present invention does not use such a special pump, but connects a pump with an existing known structure,
Moreover, it is an object of the present invention to provide an air-driven rocking piston type machine that can pump oil or the like without the need for explosion-proof equipment.

For this purpose, the present invention provides a main body in which a cylindrical casing having two compressed air outlets on a flat plate part is integrally fixed to the opening side of a cylindrical casing having a compressed air inlet through a partition plate. In addition, in the space formed by the cylindrical casing of the main body and the partition plate, there is a vane plate that sealably divides the space into two parts in the diametrical direction and can rotate integrally with the rotating shaft. In addition, in the radial direction within the space, there is a roughly V-shaped partition plate that restricts the free rotation of the blade plate, and its center is aligned with the center line connecting the compressed air inlet and the rotation axis to create a hermetic seal. At the same time, inside the partition plate, there is a swing valve that alternately opens and closes air flow holes bored in both walls of the partition plate by means of a base having bilaterally symmetrical arms projecting thereon. is pivotally supported in a swingable manner, and in the donut-shaped recessed groove on the surface of the cylindrical casing that faces the partition plate, there is a swing valve that engages with the pin hole through the arc-shaped elongated hole of the partition plate. A donut-shaped switching valve is rotatably provided, which operates together with the swinging valve through an engagement pin, and which alternately opens and closes the two compressed air outlets by matching with the two valve holes. , in a part separated from the rotating shaft, one end of the shaft protrudes outward from the cylindrical casing, and the other end of the shaft has a space formed by a space, a partition plate, and the cylindrical casing. An output shaft is rotatably provided to protrude outward from the cylindrical casing through the cylindrical casing, and a disk is fixed to the shaft portion of the output shaft that protrudes from the cylindrical casing. A bifurcated arm plate is fixed to the protruding shaft portion of the disc in contact with the disc by means of fitting the end tubular body, and the arm plate is attached to the outer peripheral edge of the disc. An engagement pin is provided that engages with the crotch portion and moves within the crotch portion as the disk rotates, and a flywheel that rotates integrally with the output shaft is provided within the space between the partition plate and the cylindrical casing. It is characterized by a built-in configuration.

Hereinafter, the present invention will be explained based on the illustrated embodiments.

Fig. 1 is a longitudinal cross-sectional view with some members omitted, and Fig. 2 is an end view seen from the 2-2 line direction of the same as above. It is constructed by integrally fixing a cylindrical casing having a flat plate portion.

As shown in FIGS. 3 to 5, the cylindrical casing 2 (hereinafter referred to as casing 2) consists of an arc-shaped portion 3 and a non-arc-shaped portion 4 that is slightly smaller than this portion 3. One side has an open shape, and the lower end of the non-arc-shaped portion 4 is provided with a rectangular base plate portion 5 for standing up, and the upper end of the arc-shaped portion 3 facing this base portion 5 is provided with a rectangular base portion 5 for standing up. A compressed air inlet 6 is provided.

At approximately the center of the arcuate portion 3 located on the center line of the compressed air inlet 6, there is provided a step-shaped shaft hole 7, which is one of the rotating shafts to be described later.
A bearing part 9 having one shaft hole 8 of the output shaft, which will be described later, is bulged on the center line of the output shaft and at the boundary with the non-arc shaped part 4. 7 and a little close to the shaft hole 7 is the shaft hole 1 of the swing valve, which will be described later.
0 is provided, and furthermore, a partition plate mounting screw hole 11 and a spacer mounting screw hole 12, which will be described later, are provided at a predetermined portion of the arcuate portion 3.

Furthermore, a screw hole 1 is provided in the peripheral edge extension on the opening side.
3 is provided, and at a predetermined part on the closed side,
A cover mounting screw hole 14 is provided to completely cover the bearing portion 9, the shaft hole 7, and the shaft hole 10.

Partition plate 15 fixed to the opening side of casing 2
As shown in FIGS. 6 and 7, is a plate-shaped body having an arc-shaped portion 16 and a non-arc-shaped portion 17 that match the shape of the opening side of the casing 2. A shaft hole 18 that matches the shaft hole 7 of the casing 2 and a shaft hole 19 that matches the shaft hole 10 are provided in the non-circular portion 17, and a shaft hole 20 that matches the shaft hole 8 of the casing 2 is provided in the non-circular portion 17. Further, an arc-shaped elongated hole 21 is provided in the upper part of the shaft hole 19, and a screw hole 22 that fits with the screw hole 13 of the casing 2 is further provided in the peripheral extending portion.

Cylindrical casing 23 (hereinafter referred to as casing 23) having a flat plate portion fixed to partition plate 15
As shown in FIGS. 8 to 10, it has an inverted U-shaped plate portion 24 and an arcuate recess 25 integrally formed in the lower part of this portion 24. A bearing portion 27 having a shaft hole 26 that communicates with the shaft hole 20 of the partition plate 15 is formed in a bulging manner at the center of the partition plate 25, and a donut-shaped switching valve (described later) is rotatable in the plate-shaped portion 24. Donut-shaped groove 28 that fits into the
In addition, two compressed air discharge ports 29 are provided in the groove 28 and at symmetrical positions slightly closer to the groove 25 than the center thereof.
29' is formed in a bulging manner, and the peripheral edge extension part further includes:
Upper and lower screw holes 22 excluding the middle part of the partition plate 15
A screw hole 30 is provided which is compatible with the screw hole 30.

The casing 2, the partition plate 15, and the casing 23 have screw holes 1 in their respective peripheral edge extensions.
3, 22, and 30, and the matching holes between the screw hole 13 in the middle part of the casing 2 and the screw hole 22 in the middle part of the partition plate 15, as shown in FIG. has been done.

As shown in FIG.
It rotates while sealingly dividing the inside of the space 32 of the circular arc-shaped part formed by 5 into two in the diametrical direction, and is provided on the rotating shaft 33.

As shown in Figs. 11 and 12, the rotating shaft 33 has a shaft portion 34 having a slightly smaller diameter and fitted into the shaft hole 18 of the partition plate 15, and a shaft portion 35 having a slightly larger diameter.
and a shaft portion 36 that fits into the shaft hole 7 of the casing 2.
The shaft portion 37 is integrally formed with the shaft hole 7 and protrudes outward. A vertical groove 38 is formed in the center portion from the shaft portion 34 to the vicinity of the upper end of the shaft portion 35.
As shown in FIG. 12, the central portion of one of the vanes 31 is fitted into the vertical groove 38, and a Teflon ring 39 is attached to the shaft portion 34.
The blades 31 and the rotating shaft 33 are fixed integrally, and the shaft portion 34 is fitted into the shaft hole 18, and the shaft portion 36 is fitted into the shaft hole 7, so that the blades 31 are rotatably supported. The blades 31 are supported by the rotating shaft 33 and are rotated in reverse by compressed air, as will be described later.

As shown in FIG. 2, the partition plate indicated by the number 40 is for airtightly partitioning the space 32 in the radial direction and restricting the free rotation of the vane plate 31. As shown in FIGS. 13 and 14, the entire body is approximately V-shaped when viewed from above, and approximately at the center of the left-right symmetrical wall portions 41, 41',
Rectangular air flow holes 42, 42' through which compressed air from the compressed air inlet 6 of the main body 1 passes are formed, and in the longitudinal direction of the outer surface of the continuous part of the wall parts 41, 41', An arcuate recess 43 that fits the outer peripheral surface of the rotating shaft 33 is formed, and the partition plate 40 has its center aligned with the center line a between the rotating shaft 33 and the compressed air inlet 6, as shown in FIG. and the arcuate recess 43 is arranged to fit the outer periphery of the rotating shaft 33, and the end face screw holes 44,
44' and each screw hole 11 of the casing 2 are integrally screwed and fixed by screws inserted from the outside of the casing 2 through matching holes.

Note that the height H of both wall portions 41, 41' is
2 (the length between the inner surfaces of the casing 2 and the partition plate 15) and the width of the blade plate 31, and the degree of expansion θ between the two walls 41 and 41' is 90 degrees. It is set.

As shown in FIG. 2, the swing valve, generally indicated by the numeral 45, is for alternately opening and closing the air flow holes 42, 42' of the partition plate 40. It is pivotably supported inside the .

As shown in FIGS. 15 and 16, the swing valve 45 has a base 46 that is approximately the same length as the inner radius of the partition plate 40 and has a height that is equal to the height H of the partition plate 40. , shaft parts 47, 47' that project upward and downward from one end of the base 46, arm parts 48, 48' that project symmetrically from approximately the center of both sides of the base 46 near the other end; The swing valve 45 includes an engaging pin 49 projecting from the lower end surface of the base 46 where the arm parts 48, 48' are located, and the shaft part 47 of the swing valve 45 is inserted into the shaft hole 10 of the casing 2. The portion 47' is fitted into the shaft hole 19 of the partition plate 15 to be pivotably supported, and as described later, the blade plate 31 is moved clockwise or counterclockwise by compressed air from the compressed air inlet 6. When the tip of the partition plate 40 protrudes from the air passage hole 42 or 42' is pushed, the arm part 48 swings from side to side.
or 48' at the base of air vent 42 or 4.
2' are opened and closed alternately.

The swinging valve 45 swings left and right in an arc whose radius is the length from the center of its shaft parts 47, 47' to the tip of the base 46. Spacers 5 shown in FIGS. 17 and 18 are placed on the left and right portions between the
0 are integrally screwed together as shown in FIG. Fixed.

As shown in Figures 19 and 20, the number 5
The switching valve designated by 2 has a casing 2
It switches the opening and closing of the compressed air discharge ports 29 and 29' of No. 3, and is a donut-shaped plate-like body as a whole, and has a hole 53 that engages with the engagement pin 46 of the swing valve 45.
On the left and right portions slightly closer to the hole 53 side than the center, there are valve holes 54, 54' that fit with the compressed air discharge ports 29, 29'.
As shown in the figure, it is rotatably fitted into the donut-shaped groove 28 of the casing 23, and the engagement pin 49 of the swing valve 45 is inserted into the hole 53 through the elongated hole 21 of the partition plate 15. Fitted and connected,
As described above, the switching valve 52 is rotated left and right within the range of the elongated hole 21 along the groove 28 through the left and right movement of the swinging valve 45 due to the rotation of the blade plate 31, and the valve hole 54, The compressed air outlets 29, 29' are opened and closed in accordance with the compatibility with the air outlet 54'.

As shown in FIG. 1, the number 55 represents an output shaft connected to a pump, etc., and this output shaft 55 is connected to the shaft hole 8 of the casing 2 and the partition plate 15.
Both ends of the shaft are supported in the shaft hole 26 of the casing 23 through the shaft hole 20 of It is rotatably supported via a bearing 58 interposed in 26.

Both end shaft portions of the output shaft 55 protrude outward from the casings 2 and 23, and a disc 59 shown in FIGS. 21 and 22 is attached to the shaft portion that protrudes from the bearing portion 9 of the casing 2. As shown in FIG. 1, this disc 59 is fixed by a pin 60 and
A bifurcated arm plate 62 having a crotch portion 63 welded to a tubular body 61 shown in FIGS. 23 and 24 is joined to the upper surface of the arm plate 62 . As shown in FIG. 1, the tubular body 61 is inserted and fixed onto the shaft portion 37 of the rotating shaft 33, and an engaging pin 6 is provided on the outer peripheral edge of the disc 59.
5 is erected and fixed with a nut 66, and a sleeve 64 is externally attached to the engagement pin 65 so as to be freely rotatable and not to come off, and the engagement pin 65 (including the sleeve 64) is engaged with the crotch portion 63 of the arm plate 62 so as not to come off from the crotch portion 63, and is moved within the crotch portion 63 as the disc 59 rotates and by the inertial force of the flywheel, which will be described later. The reversal driving force of the plate 31 becomes a rotational force and is transmitted to the output shaft 55.

As shown in Figure 1, the number 67 indicates the casing 2
A flywheel fixed to the drive shaft portion located in the recess 25 of No. 3 applies inertia force to the reversal of the blade plate 31 to ensure switching of the switching valve 52 by the swing valve 45. Applying rotational force to the output shaft 5
5, the rotational force can be reliably transmitted to the shaft.

As shown in Figure 1, the number 68 indicates the casing 2
A cover that covers more exposed parts, and as shown in FIG. 25 and FIG. It is fixed by screwing through.

Next, the operation of the proposed machine having the above configuration will be explained.

In the present machine, a conduit (not shown) is connected to the compressed air inlet 6, a known pump (not shown) is connected to the output shaft 55, and the vane plate 31 is continuously moved using the compressed air as a driving source. At the same time, this reversal power is transmitted to the output shaft 55, and the pump is driven by the rotational force of the output shaft 55.

That is, as shown in FIG. 2, the blade plate 31 comes into contact with one wall 41 of the partition plate 40, one air passage hole 42 is opened, and the other air passage hole 42' is shaken. Base 46 of valve train 45 (spacer 5
0), and the arm portion 48' of the swing valve 45 is closed by the blade plate 3.
1, and one compressed air outlet 29 is in contact with the 27th
As shown in the figure, it is closed by a switching valve 52,
When the other compressed air outlet 29' is opened by fitting the valve resistor 54' of the switching valve 52, compressed air passes through the inlet 6 and reaches the partition plate 40.
When the compressed air is introduced into the cavity 32 of the main body 1 which is hermetically partitioned by the air-tight opening, the compressed air presses the blade plate 31 through one of the open communication holes 42 of the partition plate 40 . Then, the blade plate 31 is rotated in the direction of arrow A (counterclockwise) using the rotating shaft 33 as a support by the compressed air, and further the wall portion 41' of the partition plate 40 is rotated.
(Actually, there will be a slight gap due to residual air) until it comes into contact with the

When the blade plate 31 is rotated until it comes into contact with the wall portion 41' of the partition plate 40, the swing valve 45 is moved to the shaft portions 47, 4.
7' as a support, and an engagement pin 49 and a switching valve 52.
Due to the integral engagement with the hole 53, the switching valve 52 is rotated counterclockwise along the groove 28 until the engagement pin 49 is located at the end of the elongated hole 21. The base 46 (including the tip in contact with the spacer 50) closes the air passage hole 42 of the partition plate 40, and the position of the valve hole 54' of the switching valve 52 is changed by the rotation of the swing valve 45. Due to the shift, the compressed air outlet 29' is blocked, and one compressed air outlet 29' is closed.
is opened by matching with the valve hole 54. on the other hand,
The tip of the arm 48' of the swing valve 45 comes into contact with the blade plate 31, and as the blade plate 31 rotates, the arm plate 62 swings (from the position shown by the imaginary line in FIG. 2 to the second position).
8), the disc 59 rotates accordingly, and the engagement pin 65 is moved to the arm plate 62 by the inertial force of the flywheel 67 that rotates integrally with the disc 59. The disk 59 rotates in the same direction while moving within the crotch portion 63 of the disk. This state is shown in FIGS. 28 and 29.

Next, when the compressed air is continuously introduced, the blade plate 31 passes through the air passage hole 42' of the partition plate 40.
is pressed, and the blade plate 31 is rotated in the direction of arrow B (clockwise) until it comes into contact with the wall portion 41 of the partition plate 40. In this case, the empty space 32
As the blade plate 31 rotates, the compressed air contained therein flows through the opened valve hole 54 and the compressed air outlet 2.
It is discharged to the outside from the matching hole with 9. Feather board 31
When the arm plate 62 rotates, the arm plate 62 swings (second
8 to the position shown in phantom lines in FIG. 2), the disk 59 rotates in one direction.

Thereafter, similarly, the swing valve 45 is caused to swing together with the switching valve 52 by continuously supplied compressed air, and the vane plate 31 is continuously reversed. The reversing force of the blade plate 31 is transmitted to the output shaft 55 via the bifurcated arm plate 62, the disc 59, etc., and is also transmitted to the flywheel 6.
The output is ensured by the inertia of 7.

Therefore, the pump connected to the output shaft 55 is operated by the rotational force of the output shaft 55 and can pump oil or the like.

As described above, according to the present invention, high torque can be obtained using compressed air as a drive source, and a normal pump connected to the output shaft can be operated, so it can be used in places where explosive hazardous materials are handled. The pump can be operated without requiring any equipment. In addition, the present machine can efficiently utilize compressed air as a driving source with no loss, and can obtain high torque at low rotation speed, so it is suitable for pumps that pump up highly viscous oil.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; Fig. 1 is a longitudinal sectional view with the swing valve omitted, Fig. 2 is an end view as seen from the direction 2-2 in Fig. 1, and Fig. 3 is a vertical cross-sectional view of the cylindrical casing, FIG. 4 is an end view seen from the direction of arrow 4 in FIG. 3, and FIG.
6 is a longitudinal cross-sectional view of the partition plate, FIG. 7 is an end view seen from the direction of arrow 7 in FIG. 6, and FIG. 8 is a longitudinal cross-sectional view of a cylindrical casing having a flat plate portion. , FIG. 9 is an end view seen from the direction of arrow 9 in FIG. 8, FIG. 10 is an end view seen from the direction of arrow 10 in FIG. 8, FIG. 11 is a front view of the rotating shaft,
13 is a plan view of the partition plate, FIG. 14 is a side view of the same, and FIG. 15 is a plan view of the swing valve.
Figure 6 is a side view of the same as the above, Figure 17 is a plan view of the spacer, Figure 18 is a side view of the same, Figure 19 is a plan view of the switching valve, Figure 20 is a longitudinal sectional view of the same as the above, and Figure 21 is the disc. 22 is a central longitudinal sectional view of the same as above,
Fig. 23 is a plan view of the arm plate, Fig. 24 is a central vertical cross-sectional view of the same as above, Fig. 25 is a longitudinal cross-sectional view of the cover, Fig. 26 is an end view as seen from the direction of arrow 26 in Fig. 25,
Fig. 7 is a plan view showing the relationship between the valve hole of the switching valve and the compressed air outlet in the state shown in Fig. 2;
29 is an end view showing the operating state, and FIG. 29 is a plan view showing the relationship between the valve hole of the switching valve and the compressed air outlet in the state of FIG. 28. DESCRIPTION OF SYMBOLS 1... Main body, 2... Casing, 6... Compressed air inlet, 15... Partition plate, 21... Arc-shaped long hole, 23... Casing, 28... Donut-shaped groove, 29, 29'... ...Compressed air outlet, 31...
Feather plate, 32... Blank space, 33... Rotating shaft, 40...
...Approximately V-shaped partition plate, 41, 41'...Wall part, 4
2, 42'... Air flow hole, 45... Rocking valve, 4
6... Base, 48, 48'... Arm part, 49... Engaging pin, 52... Donut-shaped switching valve, 53... Pin hole, 54, 54'... Valve hole, 55... Output shaft,
59... Disc, 62... Bifurcated arm plate, 67... Flywheel, a... Center line connecting the compressed air inlet and the rotating shaft.

Claims (1)

[Scope of utility model registration request] Cylindrical casing 2 with compressed air inlet 6
A cylindrical casing 23 having two compressed air discharge ports 29 and 29' in a flat plate part is integrally fixed to the opening side of the main body 1 through a partition plate 15. In a space 32 formed by the cylindrical casing 2 and the partition plate 15, a vane plate 31 that sealably divides the space 32 into two parts in the diametrical direction is arranged so as to be rotatable together with the rotating shaft 33. Further, in the radial direction within the cavity 32, a substantially V-shaped partition plate 40 that restricts the free rotation of the blade plate 31 connects the center of the partition plate 40 with the compressed air inlet 6 and the rotating shaft 33. Both walls of the partition plate 40 are connected to each other by a base 46 which is arranged in a sealed manner so as to coincide with the center line a, and has bilaterally symmetrical arms 48, 48' protruding from the inside of the partition plate 40. Part 4
A swinging valve 45 that alternately opens and closes air passage holes 42 and 42' formed in holes 1 and 41' is pivotably supported,
A pin hole 53 is inserted into the donut-shaped groove 28 on the surface of the cylindrical casing 23 in contact with the partition plate 15 through the arc-shaped elongated hole 21 of the partition plate 15.
The two valve holes 54 and 5 move together with the swing valve 45 through the engagement pin 49 of the swing valve 45 that is engaged with the swing valve 45.
A donut-shaped switching valve 52 is rotatably provided to alternately open and close the two compressed air outlets 29, 29' by matching with the rotating shaft 3'.
3, one end of the shaft protrudes outward from the cylindrical casing 2, and the other end is formed by the space 32, the partition plate 15, and the cylindrical casing 23. An output shaft 55 is rotatably provided to protrude outward from the cylindrical casing 23 through a space, and a disk 5 is attached to the shaft portion of the output shaft 55 that protrudes from the cylindrical casing 2.
9 is fixed thereto, and a bifurcated arm plate 62 is attached to the shaft portion of the rotary shaft 33 that protrudes from the cylindrical casing 2, and a bifurcated arm plate 62 is attached onto the disc 59 with fitting means for the end tubular body 61. The outer peripheral edge of the disc 59 engages with the crotch part 63 of the arm plate 62 and moves within the crotch part 63 as the disc 59 rotates. An air-driven rocking piston characterized in that an engaging pin 65 is provided, and a flywheel 67 that rotates integrally with the output shaft 55 is provided in the space between the partition plate 15 and the cylindrical casing 23. formula machine.