JP2808067B2 - Polishing and sliding equipment for marine valves and valve seats - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for polishing and sliding a marine valve and a valve seat mainly used in a ship or the like.

[0002]

2. Description of the Related Art The inventor has developed a polishing apparatus that can polish both a marine valve and a valve seat with the same apparatus, and has already disclosed Japanese Patent Application No. 5-5 / 1993.
No. 8004, this device is in practical use.
However, the actual sliding of the polished marine valve and the valve seat mainly depends on a separate device manually.

[0003]

Although this marine valve and valve seat polishing apparatus can perform both polishing operations, the sliding between the marine valve and the valve seat mainly depends on a separate apparatus manually. Was the reality. Therefore, the ship is forced to use the sliding device in addition to the valve and valve seat polishing device, and it is necessary to install two devices in the ship where installation location and skilled labor are limited. There was a problem.

[0004] In view of the above problems, there has been a demand for a dual-purpose machine capable of polishing and sliding a marine valve and a valve seat with a single device.
In order to solve this demand, the present invention develops and provides an apparatus that can achieve polishing and sliding of a valve and a valve seat with one apparatus.

[0005]

SUMMARY OF THE INVENTION A chucking mechanism is located on a base having a drive for chucking a valve seat and rotated by the drive. The base pushes the valve up and down the valve seat. To make the valve fall and abut against the valve seat .
Has a cylinder that operates by air pressure or hydraulic pressure
Chucking machine on the base , comprising a vertical movement mechanism
The polished seat surface of the valve seat chucked by the frame comes in contact
Lower edge extending below the base of the valve shaft pushed in
And the piston with the pusher is the lowest stroke in the cylinder.
The upper edge of the piston with the pusher is close to
Install a cylinder in the air supply or exhaust port of the solenoid valve.
A flow control mechanism that opens on one side by automatic control
The piston is moved up and down through the pusher by air supply and exhaust.
By moving, the valve can move up and down
To further characterized in that it comprises a tilting feed mechanism as vertical movement of the valve and a grindstone drive motor and grindstone by the rotational operation of the diagonal and out the operating handle can be moved to a position to break free.

[0006]

According to the present invention, the up-and-down movement mechanism repeatedly pushes and drops the polished valve from the polished valve seat rotated by the drive unit and the chucking mechanism to bring the valve into contact with the valve. By applying a lapping agent in which lapping powder and mechanical oil are mixed to the polished valve seat surface, a sliding finish of the valve and the valve seat is obtained.

[0007]

FIG. 4 is a flow chart showing the structure of a vertical movement mechanism by air pressure which is a feature of the present invention. Electromagnetic valve 4
The third air supply port 44 is connected to a compressed air pipe in the ship via a pressure-resistant hose. The compressed air supply flow is controlled by the supply port 44.
Is connected to the flow control mechanism 41 of the throttle valve via the conduit 53, and the flow control mechanism 41 is connected to the piston 4 via the conduit 53.
It is configured by connecting to the cylinder 39 in which 0 is inserted. The compressed air exhaust flow is performed by connecting the cylinder 39 to the conduit 5.
3 through the free flow mechanism 42 of the throttle valve and the electromagnetic valve 4
It is configured by connecting the three exhaust ports 45 in this order.

In FIG. 1, a push plate 37 is attached to the upper edge of the piston 40. When the piston 40 is at the lowest position of the stroke, the upper edge surface of the push plate 37 is provided on the valve shaft of the valve abutting on the valve seat. The cylinder 39 is set on the gantry 55 so as to be close to the lower edge surface 36.

FIG. 5 shows an electric circuit for controlling the vertical movement. The terminal 46 and the fuse 54 are connected to a single-phase AC 10 in the ship.
0 volt, 60-cycle power receiving unit. Switch 52
Is turned on, the timing motor 48 rotates and the on / off of the microswitch 49 is repeated. When the micro switch 49 is off, the exhaust port 45 of the electromagnetic valve 43 is opened, the air supply port 44 is closed, the compressed air is exhausted, the piston 40 in the cylinder 39 is lowered to the lowest position of the stroke, and the valve is opened. Abut the seat. When the micro switch 49 is turned on, the air supply port 44 of the electromagnetic valve 43 opens and the exhaust port 45 closes, and compressed air is supplied.
The piston 40 in 9 rises to the top of the stroke,
The valve is pushed up from the valve seat via a pusher 37 attached to the upper edge surface of the piston 40.

A grinding wheel rotation drive motor 10 and a switch 51;
The drive motor 11, the changeover switch 50 and the earth terminal 47 are the same as those of the previously proposed polisher for marine valves and valve seats.

The chucking mechanism 3 and the drive unit 2 of the valve seat, which are one of the constitutions of the present invention, are the same as those of the marine valve and the valve seat polishing mechanism already proposed.

Although the embodiment of the up-and-down movement mechanism based on the interaction between the supply and exhaust of air pressure has been described above, the up-and-down movement mechanism of the present invention also includes other means such as alternately applying air pressure to the cylinder in two directions. A well-known mechanism can be used, and it is easy to implement a vertical movement mechanism using hydraulic pressure instead of air pressure.

Hereinafter, an embodiment of a polishing mechanism for a marine valve and a valve seat will be described. In the drawing, reference numeral 1 denotes a base, which has a drive unit 2 for rotating and driving a valve 7 or a valve seat 8 chucked by a chucking mechanism located in the base.
And the driving force transmission belt 12. Reference numeral 3 denotes a chucking mechanism, which is similar to a known mechanism that can select and chuck the valve 7 and the valve seat 8 and is provided on the base 1.

Reference numeral 4 denotes a vertical lift mechanism also provided on the base 1 adjacent to the chucking mechanism 3, which is mounted on a slide base mounting plate 13 fixed on the base 1 for raising and lowering. It has a base member 14. The elevating base member 14 is provided with a bevel gear system 16 rotatably screwed to an elevating feed screw rod 15 vertically mounted on the base 1. The elevating base member 14 is moved up and down. By raising and lowering the raising and lowering base member 14, a grinding wheel and a grinding wheel rotating drive motor, which will be described later, are raised and lowered in a vertical direction, and the grinding wheel is brought into contact with the valve 7 or the seat surface of the valve seat 8 in opposition.

In the drawing, reference numeral 5 denotes a horizontal minute feed mechanism provided on the vertical elevating mechanism 4, and a horizontal movement mechanism movably provided on a horizontal movement table 18 provided on the elevating base member 14 of the vertical elevating mechanism 4. A fine horizontal feed screw rod 20 having a member 19 and attached to the vertical base member 14 in a horizontal direction.
The horizontal moving member 19 is moved in the horizontal direction by rotating the screw rod 20 by the minute rotation operation of the minute polishing handle 21, and the grindstone and the grindstone rotation drive motor are moved in the horizontal direction. Reference numeral 22 denotes a scale ring, which indicates the amount of rotation of the fine grinding handle 21. In the illustrated embodiment, the horizontal movement amount of the rotary grindstone is set to 5/1000 mm by one scale rotation of the fine grinding handle 21. .

Reference numeral 6 denotes an inclined feed mechanism which is obliquely mounted on the horizontal moving member 19 of the horizontal minute feed mechanism 5. The inclined feed mechanism 6 is formed by cooperating with an inclined base member 25 having an inclined in / out screw 24 rotated by a rotation operation of an oblique in / out operation handle 23 and the oblique in / out screw 24 along the inclined base member 25. An oblique access table 26 which obliquely moves in and out is provided. The oblique access table 26 serves as a grinder mounting table, on which a grinder composed of the polishing grindstone 9 and the grindstone rotation drive motor 10 is mounted. The polishing wheel 9 is brought into contact with the valve 7 or the seat surface of the valve seat 8 by the feeding operation of the inclined feeding mechanism 6.

In the figure, reference numeral 30 denotes an angle adjusting mechanism. This angle adjusting mechanism raises both walls 27 of the horizontal moving member 19, interposes an inclined base member 25 between the two walls 27, and supports the lowermost end portion of the horizontal moving member 19 with a fixed shaft 31. Can be fixed tightly. The upper wall 27 of the horizontal moving member 19 has an elongated hole 32 for angle adjustment.
And is fixed to a screw hole formed in the inclined base member 25. The inclined base member 25 and both walls 27
Are formed with a tapered pin hole 34 for the valve and a tapered pin hole 35 for the valve seat, respectively. It is settled. In the embodiment shown, the inclination angle for the valve 7 is 30.3 ° and the valve seat 8
Is set to 30 °.

When the seat surface of the valve seat 8 is polished, a taper pin is inserted into the taper pin hole 35 for the valve seat 8 to determine the tilt angle of the tilt feed mechanism 6. Next, in order to use the valve 7, first, the angle adjusting screw 33 and the screw of the fixed shaft 31 are loosened, and the taper pin that has penetrated the taper pin hole 35 for the valve seat is pulled out, so that the inclined feed mechanism 6 is moved. Then, the angle is changed so as to be a slightly large angle around the fixed shaft 31. Therefore, the taper pin is inserted into the taper pin hole 34 for the valve 7 and positioned, the fixed shaft 31 is fixed by screwing, and finally the angle adjusting screw 33 is tightened to fix the position.

[0019]

According to the apparatus of the present invention, the polished valve seat is chucked to the chucking mechanism, and the grindstone rotation drive motor 10 and the grindstone 9 are connected to each other by rotating the oblique access handle 23. Move to a position where the vertical movement is free, insert the polished valve until it comes into contact with the valve seat, and adjust the vertical movement of the polished valve by the vertical movement mechanism and the rotational movement of the polished valve seat by the previous mechanism. Since the valve and the valve seat can be polished and slid together by a single device because they are configured so that they can be performed simultaneously, the economical effect of the dual-purpose machine is enhanced.

[Brief description of the drawings]

FIG. 1 is an overall front view of the apparatus of the present invention.

FIG. 2 is a partially cutaway front view of the same main part.

FIG. 3 is a partially cutaway front view showing an angle adjusting mechanism.

FIG. 4 is a flow chart of a vertical movement mechanism by air pressure.

FIG. 5 is an electric circuit diagram for controlling vertical movement.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 base 2 drive section 3 chucking mechanism 7 valve 8 valve seat 11 drive section motor 36 lower edge surface of valve shaft of valve inserted into valve seat 37 presser 38 upper edge of presser 39 cylinder 40 piston 41 throttle Valve flow control mechanism 42 Throttle valve flow free mechanism 43 Solenoid valve 44 Compressed air supply port 45 Compressed air exhaust port 46 Power receiving terminal 48 Timing motor 49 Micro switch 53 Conduit 55 Cylinder base

Claims (1)

(57) [Claims] 1. A chucking mechanism which is located on a base having a driving part, chucks a valve seat and is rotated by the driving part, wherein the base pushes up the valve from the valve seat and drops the pushed-up valve. Pneumatic or hydraulic pressure to abut the valve seat
It includes a vertical motion mechanism having a cylinder operated by a fluid pressure, chucked by the chucking mechanism on said base
Inserted until the polished seat surface of the valve seat
The lower edge of the valve shaft that extends below the base
When the push button is at the bottom of the stroke
Install cylinder so that upper edge of piston with gold is close
One of the inlet and outlet of the solenoid valve is automatically controlled.
Therefore, an open flow control mechanism is provided to supply and exhaust air.
To move the piston up and down through the press
In addition, the valve can perform up and down movement, and further, an inclined feed mechanism is provided so that the grindstone rotation drive motor and the grinding wheel can be moved to a position where the up and down movement of the valve is free by rotating the oblique access operation handle. A polishing and sliding device for marine valves and valve seats.