JPS58220977A - Pump - Google Patents

Abstract

PURPOSE:To increase capacity of suction and delivery, by providing a guide hole communicated to a lateral groove of a shuttle to a rotor and utilizing a change of volume caused by lateral motion of the shuttle in the lateral groove. CONSTITUTION:Relative movement of a piston 9 is grooved part 4 by an eccentric amount E forms space parts X, X in an equal volume conditions V2, V7 in both sides of the piston 9. While relative lowering of a shuttle 7 in a lateral groove 6 by the eccentric amount E forms a space part Y in a volume condition W4 corresponding to a length 2E two times the eccentric amount E in an upper part, consequently capacity of suction and delivery can be remarkably increased.

Description

[Detailed description of the invention]

The present invention houses the rotor, piston, and shuttle in the pump chamber of the casing, and has large suction and discharge capacities, reduces pulsation, and has excellent mechanical efficiency, making it particularly suitable for transferring high-viscosity liquids. This article relates to a pump with a new configuration. Conventionally, as a pump that houses a rotor, a piston, and a shuttle in a pump chamber of a casing, the pump shown in FIG.
) to (d) A type of so-called tree rotor structure shown in K and manufactured by Tory Corporation in the United States is known. This pump la) houses a rotor (d) having a groove (C) in a pump chamber (b), and has a shuttle (d) rotating in the groove (c) eccentrically with respect to the rotor (d). e)
A piston (g
) is installed, and! Figure 5 (alK shows rotor (dl (7) groove part (cl lrZ diagram
θ0 For example, while rotating clockwise, the piston (g)
can move up and down within the groove Icl by the eccentricity (t (t) of the shuttle (el), which is twice the length of rrJ. Therefore, for example, the space formed by one of the outer arc surfaces (hl) and the groove (cl) x) I/i, tBs Diagram (a) The state with the smallest volume shown below II ff,) Color, !5 Diagram (b), @
Fig. 5 (c), Fig. 5 (As it rotates by dl and YJ degrees, its volume increases as (vl) (vt) (■,), /1
In Fig. 5 (a) with 0 degree rotation j7, after reaching the maximum volume (■4) located above and equivalent to twice the eccentricity fit-, the space part (X) is rotated by the next izo degree. By gradually decreasing the injected volume as (V, )(V, )(V, ), it is configured to repeat inhalation and exhalation. However, in the conventional pump (al), the rotor (d
) during one rotation of each outer arc surface (h, ) of the piston [g)
In (h,), there is only one suction and discharge stroke each, that is, there are only two suction and discharge strokes for each revolution of the rotor (d),
Pulsation tends to occur in the operation of the pump (a), and the outer arc surface (b, )(
h, ). When the transferred object is a high-pressure object, the pressure of the transferred object acts on the rotor (d) in the state shown in Figure 5 (at), and the rotor (d) is pressed to one side. The rotor (d
) and further increases the bearing load that holds the rotor (d)
The pressing and biasing (il+) of the rotor (d) also hindered the smooth rotation of the rotor (d).
Basically, solve the origin between the above

[7] An embodiment of the pump will be described below with reference to the drawings. In the figure, the pump f+ltf of the present invention, pump chamber (2)
A rotor having a groove portion 14) in a casing (3) having a ! fil and a piston (9) that accommodates the shuttle (7) in the horizontal groove (6), and a guide hole (+01) communicating with the horizontal groove (61) is provided in the rotor (6). 3) The support shaft +121 is supported by using a ring, and the support shaft (1) is attached to the rear end of the main body part 04, which is provided with a leg (1j) for installation. Fit [7, and the middle bracket)+15)[, the pump bracket (1) having the suction pipe H and the discharge pipe Oη
1 and the cover (A) after stacking the rear end. Includes middle bracket 1lfi+, pump bracket (19
), the rear cover can be easily disassembled using wing nuts or wing screws. Before. The pump chamber (2) is surrounded by a middle bracket, a pump bracket, and a rear cover.
1) to the cylindrical hole concentric with I, and the cylindrical hole (21J
For example, by cutting out the inner surface of two symmetrical arcuate surfaces 122M that sandwich the center and face each other vertically, the cutouts allow the interior of the suction section communicating with the suction pipe 01 and the discharge pipe ( Note that the suction pipe 1111) and the discharge pipe (17
1 has its lower surfaces (16a) (17a) located below the end (23a) of the arcuate surface (toward). The rotor 15) has a support @t+2) at its front end.
The inner bracket O has a boss part force that fits 9 inches, and can be screwed to the support shaft 1 using the collar 4.
m using a plain bearing. The rotor (5) can also be rotated in close proximity to the cylindrical hexagon, and a force of one force is applied to its center.
The groove portion (4) has a medium size fBl that is approximately the same as the medium size of the arc surface 1j of the barrel, i.e., approximately equal to FLK.
is installed vertically through the axis of the rotor (5), and is placed on both outer surfaces of the rotor (6).
) By forming the cutout portion (G) of C) in a direction parallel to the groove portion (4), the rotor 1141 #
A protrusion of the same length (forming the 3-force gap) protruding from the i-disc part (i). The length of the i-shaped portion (C1) is approximately the same as the above-mentioned 11 dimension (3). As long as it is inward from the outer surface, it can be formed into a mountain shape as shown by the dashed line in Figure 2, or an arc shape (□). A hole (1ω) is drilled. The shuttle (7) has a rectangular parallelepiped shape in this embodiment,
The rear cover protrudes 17 parallel to the axis of the rotor +i+ and is rotatably supported at its center by a pivot pin tq< which is offset downward by an amount of eccentricity (for example, E1), and whose length is, for example, In the wooden embodiment, the length of the side (7a) is set to a length shorter than the medium dimension (3) by twice the eccentricity (E). Long side (7
a), it is possible to adjust the direction of the short side (7b) and accommodate one horizontal corner (6)K. As this shuttle (7) rotates, the reciprocating movement of the piston (9) causes the horizontal groove (6) to move upward.
) relative sliding inside. The piston (9) has an outer arc 41η having the same shape as the arcuate surface portion +22M, and the gloss between the outer arcs 41η is the diameter (D) of the cylinder 640.
The length fF) is set to be twice the eccentricity amount +E) and shorter by 2E). Note that the horizontal groove (6) is
It can slide into contact with the long side (7a) of the shuttle (7), and the outer arc In
M ('+71) By sliding the inner surface of the groove (4) with the lateral front part (a) sandwiching both sides of the guide hole f10
1 if, the horizontal groove (6) and therefore the short side (7) of the shuttle (7)
b) Side button can be conductive. However, when the pump of the present invention (flFi, the rotor (5) is located with its groove 14) facing the circular arc surface (22 (2)), KFi, @4, as shown in Figure (a), 0η
The length F) is greater than the eccentricity (of the diameter of the cylinder B).
The outer arc surface Gη located below is close to the arc surface part (to), and the open space part (Xl volume) is twice as long as E). is 0, IN (v
s). In addition, the gap force of the space (XIFi, twice the length of the eccentricity (E), 2E) between the outer arc surface (to) and the arc surface part located above is maintained, and the maximum volume shape 11a is maintained between them. The space (1) of (V,) is formed under the same pressure as the protrusion (sha) (to). The width of the circular arc surface (22nd width (A) and the width of the groove (4) (B) are equal, therefore, the space (X) of the circular arc surface (2 parts and the protrusion 0η (G)
and sealed. At that time, the shuttle ()) is located at the center of the horizontal groove (6), and the space (Y) (Yl) of the volume II (W, ) (W, ) is located between the protrusion color η on both sides and Horizontal groove 16) Forms internal pressure. This space (Y) communicates with the suction part and the discharge part (c) K through the guide hole (l(2). In this state, the rotor 1Fil rotates clockwise WJ degrees! Figure 4 ( bl
[In the state shown, the piston (9) is stacked with its center downward by an eccentric amount (El).
property), so by rotation of 41j & E
E - relatively moves upward in the first length groove (4), thus the volume I
ll (V, ) space (Xl is formed between the outer arc surface clη. Also, the shuttle tyl 1.t 2'-2 (E eccentricity) long day, the protrusion - direction moves As a result, the space part (■ is in the volume state rW, inside the suction part) and the transferred material is sucked into the suction part.The spaces between the spaces in the volume state (W, ) are as described above. By reducing the distance (K2), the transferred material is discharged from the discharge part @4.It is further rotated by 4'4F, and the piston (9) is in the state shown in Fig. 4 fcl where the groove part 141 is horizontal. , groove +41
Located in the center of In other words, the piston +91#- is eccentric from the state shown in Fig. 4 (aLK).
By relatively shifting 111, the space (Xi
(While the shuttle (7) forms the horizontal groove (6)
By lowering the eccentricity jl■) in a refractional manner, a volumetric I! corresponding to the eccentricity # (twice the length of El and 2E) is placed on top of it. ? , (W,) to form a space (2), and the lower surface abuts the protrusion to form a space (Y).
is a volumetric form ffi (W,) whose volume is 0.
In addition, the 13 dimension fcl circular arc surface part (sha) of the above-mentioned cutout part
It is equal to the medium size (3) of the (goods), and therefore one end (22
a) As a result of contacting and blocking (23a), conduction between the inside of the suction part and the outlet part is prevented. In addition, when the medium dimension (C1) of the 4yJ cutout (A) is smaller than the width dimension (At), the shuttle 17) moves in the state O of @4 (cl), confinement occurs. Therefore, in the state button shown in Fig. 4 (a), the volume state v0
The spatial part (X) changes in volume state (V, ) every yJ degree rotation.
(vt) (y, ), the volumetric shape 11a (
After the space part ■) reaches the maximum in V, ), the space part [X)
At the next rotation of 110 degrees, the volume state (VS), (VS
), (VF), and (V, ), and the transferred material can be discharged from the discharge part (c). That is, for each rotation of the rotor (5), the outer arc surface Gv11.31)VC allows a total of two discharges. Perform suction and discharge strokes. Sara K Fig. 1 fc) died tn
T-Shi? ) Le (7) Lower volume 1'M, (W,
) space part ■) is shown in Fig. 4(d), Fig. 4ial, Fig. 4
While rotating by J degrees to the state shown in figure (b), the space part (Yl ke, its volume state (w, )(W, )(Wl
) is increased and rotated by /jθ degrees. In the state shown in Figure 4 (c), after reaching the maximum volume ff, (W, In the state (ws) (W, ) (W, ) (W, ), the material to be transferred is discharged to the discharge part (9fA), which contracts while communicating with the discharge part (9fA. In this way, one part of the shuttle (7) As a result, the pump (1) of the present invention performs suction and discharge strokes four times per rotation of the bar.The 11th dimension (8) of the groove portion 141 is as follows: 11
tf is approximately equal to the dimension (3), so it is closed, and smooth suction and discharge can be achieved without causing any leakage. As mentioned above, in the pump of the present invention, the rotor is provided with a guide hole that communicates with the horizontal groove in which the shuttle slides, so that in addition to the volume change due to the vertical movement of the piston, the shuttle moves laterally within the horizontal groove. Utilizing the volume change caused by [7], it becomes possible to suck in and discharge the transferred material, 5 Compared to the conventional pumps shown in Figures (a) to (d), the suction and discharge capacities are significantly increased, and four suction and discharge strokes are possible during one rotation of the rotor. Reduces pulsation and enables high-speed pump rotation. Furthermore, in the state shown in Figure 5 (8), when the discharge side is under high pressure, the pressure acts on the shuttle (71K), and the pressing force acting on the rotor (61) reduces the force, so the bearing load is reduced and smooth and efficient operation is achieved. This enables good operation.The pressing force can be borne by the force t=i of the pivot pin 4, and
By reducing the load on the rotor 161, it is possible to transport objects at even higher pressures, and in particular, it can also be used to transport ultra-high viscosity liquids. Furthermore, unlike many conventional pumps, there is no so-called valve, and the piston is made to have a large area, which is comparable to the scales, which suppresses stirring, twisting, squeezing, foaming, etc. of the transferred material. In addition to viscous liquids, it is also possible to transfer solid materials such as powder and granules smoothly and while preventing smearing. Sixth, the pump of the present invention is a forward/reverse rotation IC.
In addition to changing the w-feeding direction, the rear cover (20)
%' Pump bracket (11, easily disassembled using the wing nut etc. of the middle bracket a-, and lower fnM r18a of the suction part (2I) and discharge part ffr9) (
lea) below the arcuate portion (fourth end (23a)) of F, the pump (1) can be stopped!L
Even at times, there is no accumulation or residue of transported materials inside the pump, making it suitable for use as a so-called sanitary ribbon. It is clear from the construction of the pump invented by the footwood, that even the vertical grooves and grooves can be used to its fullest extent.
In addition, by providing a cover 1f41 at the rear end of the piston that rotates concentrically with the axis of the rotor (6), as shown by the dashed line in Figure 1, the sliding contact between the transported object and the wall of the pump chamber is reduced. It can be configured to reduce the damage of the transported object at a high Kftlp rate, and further reduce the length F) that pinches the outer arc surface 66) of the piston 19), and the lower dead end of the piston c91 shown in @4 rat. Even at a point, FIi with the arc surface (to)
The shuttle (7) can also be formed to provide a gap in the shuttle (7).
Similarly, various configurations can be used, such as a structure in which the transfer material is prevented from being crushed by being formed in the middle.

[Brief explanation of drawings]

Figure 2 is a cross-sectional view showing an embodiment of the present invention, Figure 2 is an AA cross-sectional view, Figure 3 is an exploded perspective view showing the main parts,
FIGS. 4(a) to 4(d) are sectional views showing the operation thereof, and FIGS. 5(a) to 5(d) are sectional views illustrating a conventional pump. (2)...Pump chamber, (3)...Casing, (4
)...groove, 15)...rotor, (6)...al
l, ())...Shuttle, (9)...Piston, n
ot...Inductor hole, row...Cylindrical hole, +22) Granule...Circular surface part, I)...Suction part, (A)...Discharge part, (
b)...Cutout part, @4...Pivot pin, (31B1
η...outer arc surface, -...tank surface, cap...medium dimension of arc surface, t)...medium dimension of groove, (Dl...diameter of cylindrical hole, (E) ... Eccentricity. Patent applicant Yasuyoshi Shibai Patent attorney Tadashi Naemura Figure 4 (a) Figure 41'1 (b) ib Figure 4 (d) 1

Claims (1)

[Claims] (1) The inner surface of the cylindrical hole is cut out leaving two symmetrical arcuate surfaces facing each other, thereby providing a suction section and a discharge section. The shuttle accommodates a rotor that can rotate as shown in FIG. is installed in the pump chamber, while
The center has a transverse groove in which the shuttle is slidably accommodated, and the outer arc surface has a length that is at least twice the eccentricity of the axis of the shuttle and shorter than the diameter of the cylindrical hole. The pistons formed separately are installed so that their horizontal surfaces are in sliding contact with the inner surface of the groove so that they can move vertically within the groove, and further, on the outer surface of the rotor,
A pump characterized in that a cutout part is formed in a direction parallel to the groove part and approximately the same length as the arc surface part, and a guide hole is provided from the outer surface of the cutout part to communicate with a lateral groove of a piston installed in the groove part.