JPS58145592A - Pressure adjusting unit - Google Patents

Abstract

PURPOSE:To set a volume variable chamber to any position easily by manual operation by providing a connecting hole to a wall part of the main body of a pressure adjusting chamber, placing a volume variable chamber that is connected to a connecting hole at a part of the connecting hole, and providing simultaneously a volume setting mechanism for the volume variable chamber. CONSTITUTION:When a handle 28 that is screw-attched to a setting bar 26 is turned to the right for instance, the setting bar 26 advances spirally to the right in the figure, while resisting a coil spring 19, and an end plate 17 is moved to the right, shortening a plug 18 to place the end plate 17 at the center, so that the volume variable chamber b can be set to an optional volume. At the same time, when oil is supplemented in a crank chamber and in the side of a pressure adjusting chamber (a) that is connected to the crank chamber, the volume variable chamber b can be set to any volume in which the end plate 17 of the volume variable chamber b is located at about the center of the pressure adjusting chamber (a).

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is characterized in that it is provided with a mechanism that can set a variable volume chamber provided in a pressure chamber receiving internal pressure and external pressure to an arbitrary volume. This relates to a pressure aMl adjustment device.

To explain a conventional example of a pressure regulating device attached to a variable reversible balance device used to keep a submersible in a balanced state underwater, the variable reversible parast device is a pressure-resistant shell, as shown in Figure 1. The weight of the submersible in the water can be adjusted by pumping seawater in and out of the barrier pull parast tank (11). (8) K is engaged and the piston seal (
7), and a suction valve (5') and a discharge valve (5#) that are opened and closed by retracting the top part of the piston (6) into a valve chamber (51). A pressure balance valve (3) that adjusts the discharge pressure depending on the switching valve (21 and the operation FILK) is installed in the pipeline, one end is connected to the barrier pull ballast tank 111, and the other end is connected to the suction/discharge port Qf1.
The structure is connected to the

Therefore, it is desirable that submersible equipment be lightweight, especially in relation to the ballast system, and in order to achieve high speed, the first crank chamber (9) is filled with lubricating oil, but the pump body (
4) has a thin wall structure, so it is necessary to equalize the pressure of the oil in the crank chamber (9) with the external seawater, and a bellows-shaped pressure adjusting device αB is provided in the figure.

Fig. 2 shows an example of this, in which a crank mechanism (8) rotatably supported by a rolling bearing, a pump shaft a3 extending from the crank II mechanism +81 to the outside of the machine, and a pump shaft a4 connect the pump body (4). The pump shaft seal provided in the penetrating part l1 A shaft joint (4) connected to an electric motor (not shown) serves as a driving member for the piston (6), and is located on the opposite side to the side through which the pump shaft a passes through. 911 of the pump body (4)
A pressure p + adjustment chamber main body (19) constituting a pressure adjustment chamber 1-) communicating with the crank chamber (9) is attached to the first part, and a front plate αe forming a part of the pressure adjustment chamber main body a9 is attached. is equipped with a communication hole that allows seawater to enter and exit.
In addition, 9tll of the front plates ae are fixed to one end 1111 of the bladder 08 made of an elastic material, and fixed to the other end of the bladder 08 (end gray) (If) Y, and a coil spring ( IIJ is installed, and the variable volume chamber connected to the communication hole (configured in a pressure adjustment device with a
), the pressure adjustment chamber (α) connected to the crank chamber (9)K is filled with lubricating oil to equalize the pressure with the external pressure, thereby increasing the strength of the pump body (4). Le01
5K to prevent seawater from entering the crank chamber (9).

Therefore, in the pressure regulating device described above, the communication hole (a)
The seawater that enters the Prada 0 ladder, that is, the variable volume chamber (BL), comes into contact with the end plate αη and the lubricating oil inside the bladder 0 and 0, and the pressure of both is stationary at the fishing platform position, and the crank In order to prevent the seawater σ from entering the chamber f9+, it is desirable to adjust the pressure of the lubricating oil to be slightly higher than the seawater σ, and the coil spring Ql plays a role in compensating for this pressure difference. If the pressure of Wei Yuxian 1 is even slightly high, leakage of Ili cannot be avoided, and entosylate an is moved to the left in the figure for long-term evacuation.

Figure 6 shows a state in which the variable volume m (Al, that is, the Zorada bet) is considerably extended to the left, and when used in this state,
Due to leakage of lubricating oil, etc., the end sillage) 071 becomes stopper c! 31, the pressure FJ61 cannot be adjusted and the pump itself may be damaged.

Therefore, before diving, Prada 0 Enoki was shrunk to the specified size.
Conventionally, the pressure was adjusted by injecting pressure oil that counteracted the force of the coil spring 01 and the Prada a. The variable volume chamber of the device was set, but the conventional setting means that required the pressure injection device wIIb had the disadvantage that the setting process was difficult and could not be set accurately.

The present invention solves the above-mentioned problems in conventional pressure regulating devices, and aims to provide a communication hole at the base of a pressure regulating chamber body that receives internal pressure and external pressure, and a variable volume volume communicating with the communication hole. It is characterized by the fact that the chamber is placed in the area of the communication hole, and the volume chamber is also attached to the above-mentioned hole. The present invention provides a pressure regulating device fltw which can be set to any desired position.

The present invention has the above-mentioned configuration, with a communication hole provided in the wall of the pressure PTU chamber that receives internal pressure and external pressure, and a portion Ki! of the communication hole above the variable volume chamber communicating with the communication hole #! It is equipped with a volume setting mechanism for the variable volume chamber, so the volume setting mechanism allows you to set the variable chamber at any position and simply apply oil to the crank chamber and pressure adjustment device. The variable volume chamber can be set very easily and quickly just by replenishing the volume, and the set position of one variable volume chamber can be set exactly as desired.

Further, in the present invention, the volume setting mechanism of the variable volume chamber can be configured to protrude outside the pressure adjustment chamber, and the variable volume chamber can be easily set by manual operation. The state of the set can be detected by the protruding ME and the set can be set at any time.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be explained with reference to the drawings.

An embodiment of the present invention is shown in FIG. 4, and 09 in the figure is
The pressure adjustment chamber body is attached to the pump body (41 to form the pressure adjustment chamber tal 'a' by the mounting port) (15'), and the pressure adjustment chamber body 0e is attached to the end of the pressure adjustment chamber main body Q9 (mounting port) (
16') and constitutes a part of the pressure adjustment chamber main body α9, ■ is the front plate Q
eK is the communication hole for pressure adjustment that is installed through the front plate αIK, C11l is the auxiliary hole of the through hole (to) that is installed through the front plate αIK, and a8 is the one end attached to the inner surface of the front plate) Ofj. The end plate antt is applied to a variable capacity chamber (a plug made of an elastic material with a shape formed, ■ is a coil spring installed between the end plate Oe and the end plate 07, and in this embodiment, the coil spring is installed between the end plate Oe and the end plate 07. At the center of the end grate Q71, insert the proximal end (26') t-* into the communicating hole of the threaded cella 1 (21-) (front gray) 09 so that it protrudes outward. ),
And the set rod C! (to) tip of IK hunt 9 le c1
Screw in the 8V and tighten the set rod (7) and 7.
A volume setting mechanism for a variable volume chamber <h+ is also provided.

The illustrated embodiment has the above-mentioned structure, so when the handle @ screwed onto the tip 41I of the set 4s (4) is rotated clockwise, the set rod (2) moves to the coil spring C11. The end plate αη is moved to the right side by being screwed against the tension to the right side as shown in the figure, and the end plate 0ηI is compressed by one plug as shown in FIG.
By positioning it in the center, the variable volume -1HL can be set to any desired volume, and at the same time supplements the oil into the pressure adjustment chamber (α) connected to the crank chamber and the 7th cylinder.
Therefore, the variable volume chamber (end play of bl) Qη can be extremely easily set to an arbitrary volume approximately at the center of the pressure adjustment chamber (α).

After the above-mentioned setting, operate the handle in the opposite direction, that is, rotate it to the left to move it away from the front play QE9, so that the set rod can freely move left and right as shown.

Therefore, after the setting, the pressure inside the variable volume chamber tAl is always equal to the external pressure through the communication hole and the auxiliary hole C311, and the pressure adjustment chamber (α ) is increased/decreased, and the available volume chamber t
The external pressure and coil spring force inside the Al are balanced with the pressure oil inside the pressure adjustment chamber (α), so that an adjustment action with uniform internal and external pressures can be obtained at all times.

In addition, in conventional equipment, the position of the variable volume chamber was changed by supplementing the pressure oil inside the pressure adjustment chamber.
However, according to this embodiment, by rotating the handle @ and observing the amount of protrusion of the set rod circle, the variable volume chamber + Alt'
It can be accurately set at any position, that is, at any volume Wj, and it is only necessary to supplement the pressure + IJW chamber (1) with oil, making it possible to set it extremely easily, quickly and accurately.

Further, the condition of the first variable volume chamber can be easily detected by the protruding condition of the setting rod (a), and since it can be easily set from the outside, it can be set at any time, and damage to the device can be prevented.

Although the above-mentioned embodiment has been described for use in a seawater pump of a submersible, the device of the present invention can also be used for pressure adjustment in other general devices.

Although the present invention has been described above with reference to embodiments, the present invention is, of course, not limited to these embodiments, and may be modified in various ways without departing from the spirit of the present invention. It is something.

[Brief explanation of drawings]

Figure 1 is a mechanical diagram of a conventional seawater pump, Figure 2 is a sectional view of a conventional example of the pressure wI4 regulator installed in the seawater pump in Figure 1, and Figure 3 is an enlarged view of the pressure regulator in Figure 2. FIG.
Figure. a: Pressure adjustment chamber b: Variable volume chamber 15: Pressure adjustment chamber body 16: Front play) 17: End plate 18 Nibrader 19: Coil by 26: Set rod 2
8: Handle '50: Through hole 61: Auxiliary hole. Sub-agents: Patent attorney Domamoto and 2 other people

Claims (1)

[Claims] A communication hole is provided in the wall of the main body of the kidney chamber, and a variable volume Wi chamber communicating with the communication hole is disposed in the communication hole, and a volume setting mechanism for the variable volume chamber is provided. A unique feature is that it is equipped with a pressure regulating device.