JPS638858B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is an apparatus for generating an impact water pressure used for molding using fluid pressure, in particular, a hammer moves at high speed in a cylinder, and an impact water pressure is generated in a water pressure chamber directly connected to the cylinder. This invention relates to an impact water pressure generating device that generates water pressure.

This type of impact water pressure generator is capable of shockingly generating water pressure of several thousand atmospheres, which cannot be easily generated by ordinary pumps, without using ordinary pumps, and is extremely useful in industry. Although this is beneficial, since water pressure is generated by high-speed hammers plunging into the water in the water pressure chamber, hammers and water pressure chambers that are subject to friction with each other at high speed and high pressure at the same time must be regularly It needs to be removed and repaired.

The device is generally shown in Figure 3.
A hydraulic chamber is fitted and fixed around the bed, a long cylinder rests on it, and a valve device that controls the supply and interruption of compressed air is placed above it. Usually, many air pipes, electric lines, etc. are fixed to this valve device.

Conventionally, for example, in order to take out a hammer in a cylinder for repair, you first remove the piping and wiring to remove the upper valve device, and then lift and remove the valve device that is inserted from above at the upper end of the cylinder. Next, lift the cylinder inserted into the water pressure chamber from above sufficiently upwards until it no longer hits the hammer inside, then slide it to the side and remove it. Since the hammer had to be taken out for the first time after that, it took a lot of effort to take it out. Furthermore, reassembly after repair requires work in the reverse order of the above, which is inconvenient and requires a great deal of time and effort for all the disassembly and assembly work.

The present invention aims to eliminate these conventional drawbacks, and makes it possible to quickly and accurately remove and assemble parts such as hammers to be repaired or replaced in a short period of time and with easy labor, and to do so safely. The purpose of this invention is to provide a highly functional device with a simple configuration and an economical form.

Another object of the present invention is that it is an important requirement that the hammer be able to move smoothly at high speed in the cylinder of the impact water pressure generating device. This makes it possible to easily match the valve body and remove the internal hammer or the water pressure chamber without moving the valve body up or down, thereby saving a lot of time and manpower during conventional repairs. The object of the present invention is to provide a device that can solve the problems that required the above steps.

The present invention is an impact water pressure generating device in which a hammer moves at high speed inside a cylinder and generates an impact water pressure in a water pressure chamber directly connected to the cylinder. An upper flange and a lower flange are provided on the outer periphery of the upper and lower cylinders, respectively, and a mounting plate is detachably provided on the flange, and a reference ring that can be fitted on the flange outer periphery is provided. This is an impact water pressure generating device, which is constructed by fixing these to the mounting plate in a fitted state, and further tightening the upper flange and the lower flange with a stator.

In FIGS. 1 and 2, an upper cylinder 1 and a lower cylinder 2, which are divided by a plane perpendicular to the central axis of the cylinder, each have a ring-shaped upper flange 3 and a lower flange 4 welded to their outer peripheries. Both flanges 3 and 4 are arranged so that their joint surfaces are on the same plane as the dividing surfaces of the cylinders 1 and 2.

Both flanges 3 and 4 are made of a cylindrical body having two planes perpendicular to its central axis on both end faces, with a hole drilled in the center thereof concentrically with the cylinder and having the same diameter as the outside diameter of the cylinder, except for the height. Each ring consists of a ring body of the same size. Therefore, the inner circumference of the upper flange 3 is welded to the outer circumference of the upper cylinder 1, the lower plane is on the same plane as the dividing plane of the cylinder, and the outer surface 5 of the upper flange is centered around the central axis of the cylinder 1. It is cylindrical, the upper surface is a plane parallel to the lower plane, the inner periphery of the lower flange 4 is welded to the outer periphery of the lower cylinder 2, and the upper plane is on the same plane as the dividing plane of the cylinder. , the lower flange outer surface 6 has a cylindrical shape centered on the central axis of the cylinder 2, and its diameter is the same as the cylindrical diameter of the upper flange outer surface 5,
The lower surface is a plane parallel to the upper plane.

The upper flange 3 has a disk-shaped mounting plate 8 on its upper plane, which has a hole in the center concentric with the cylinder and having a diameter sufficiently larger than the outer diameter of the cylinder, and can be freely removed using a plurality of mounting plate bolts 10. We are prepared. In this case, the hole in the center of the mounting plate 8 may be large enough to allow the mounting plate 8 to slide around the outer periphery of the cylinder.

Furthermore, the standard has a flange-like mounting portion 7' that can be fitted to the mounting plate 8 with an extremely small gap over the total length of each cylinder of the upper flange outer surface 5 and the lower flange outer surface 6. ring 7,
At the position where the upper flange 3 and the lower flange 4 are fitted, the reference ring is firmly fixed to the mounting plate 8 with the reference ring mounting bolt 9 to align the center axis of the cylinder. Of course, the ring 7 may be constructed as one piece from the beginning. In this state, the upper flange 3 and the lower flange 4 are configured to be tightened by a stator, for example, a plurality of tightening bolts 11.

In addition, if the degree of centering of the cylinder is not so strictly required, that is, if a relatively large gap is allowed between the cylinder and the hammer, the reference ring 7 and the mounting plate 8 should all be arranged in a 360° circular shape. , by making it a 180° semicircle,
There is no need to shift the mounting plate 8 upwards and hold it, and it can be pulled out laterally.
You can make your work even easier.

Furthermore, by using two semicircular plates instead of a single circular plate with a hole, the mounting plate 8 can be easily removed from the cylinder if necessary, and can be removed from the upper flange 3 first. There is no need to insert the mounting plate 8 into the upper cylinder 1 before welding the mounting plate 8 to the upper cylinder 1, which is convenient.

In addition, if the cylinder can be moved even slightly in the vertical direction, the cylinder can be moved by forming uneven surfaces in the circumferential direction or radial direction on the joint surfaces of the upper cylinder 1 and lower cylinder 2 and/or the upper flange 3 and lower flange 4. It is useful for making a good seal or for associating with bolt holes. In this case, upper cylinder 1
It is also good to arrange the joint surfaces of the lower cylinder 2 and the upper flange 3 and the lower flange 4 on different planes.

As shown in FIG. 3, two dividing surfaces configured in this manner are provided at two locations at a distance L ₁ from each other in a cylinder in which a hammer 12 is provided so as to be movable up and down. This distance L ₁ is set to be slightly longer than L ₂ when the total length of the hammer 12 is L ₂ , and the lower dividing surface is provided slightly above the top end position when the hammer 12 is at rest. By attaching and detaching or separating a part of the cylinder, it is possible to easily disassemble and assemble the cylinder at a place where it is assembled using a normal spigot without having to disassemble it.

In addition, a valve device is inserted and fixed at the top of the cylinder, which has the role of supplying and shutting off compressed air to move the hammer at high speed within the device by aligning the center with a spigot, and the bottom end is connected to the hydraulic chamber 13. The hydraulic chamber 13 is inserted into the upper end of the bed and centered and fixed with a spigot, and the hydraulic chamber 13 is also centered and fixed around the bed with a spigot. A large number of air piping, electrical wiring, their protection tubes, etc. are fixed to the valve device.

Therefore, when taking out the hammer 12 and reassembling it after repair, for each divided part of the cylinder,
First, remove the tightening bolt 11 and then remove the mounting plate bolt 1.
0 and move the mounting plate 8 slightly upward with the reference ring 7 fixed, the outer surface of the lower flange will be exposed. In this state, the upper and lower cylinders 1 and 2 are not restrained relative to each other at each dividing point, so that the middle cylinder among the three divided cylinders can be horizontally shifted and removed. The upper cylinder of the three parts is fixed to the valve arrangement and remains in place supported by piping or a suitable support structure (not shown). Further, the cylinder directly connected to the water pressure chamber 13 is also held stationary.
Since a space with a distance of L ₁ is thus created between the cylinders, the hammer 12 having a length of L ₂ can be lifted up from inside the lower cylinder and taken out from the L ₁ space.

Next, to reassemble the repaired hammer 12, use the space _L1 to suspend the hammer 12 into a cylinder directly connected to the water pressure chamber 13, and then push the intermediate cylinder into the space _L1 from the side. . At this time, at each split point, the mounting plate 8 can move upwards while the reference ring 7 remains fixed, so shift it slightly upwards and slide the reference ring 7 onto the outer surface 6 of the lower flange from above. Fit them together. That is, the reference ring 7 can be easily fitted by slightly moving the cylinder being assembled back and forth and left and right.
After that, by tightening the mounting plate bolts 10 and further tightening the tightening bolts 11, the divided cylinders will be aligned with the center axis by fitting the outer surfaces of the upper and lower flanges and the reference ring 7 at each divided point. can be assembled in a fully matched state automatically.

That is, by horizontally shifting and removing only the middle part of the cylinder, disassembly and assembly including repair of the hammer 12 can be performed, without requiring a great deal of effort and time for disassembling and assembling other parts. Moreover, the central axes of the cylinders can be easily matched.

The purpose can also be achieved by providing the cylinder with two or more dividing surfaces as described above, and making the intermediate portion removable depending on the length of the hammer, or by providing one dividing surface and shifting it horizontally.

The present invention is an impact water pressure generating device in which a hammer moves at high speed inside a cylinder and generates an impact water pressure in a water pressure chamber directly connected to the cylinder. An upper flange and a lower flange are provided on the outer periphery of the upper and lower cylinders, respectively, and a mounting plate is detachably provided on the flange, and a reference ring that can be fitted on the flange outer periphery is provided. By fixing them to the mounting plate in the fitted state, and further tightening the upper and lower flanges with a stator, the great amount of effort required for disassembly and assembly, which was unavoidable with conventional structures, is greatly reduced. It is possible to provide an impact water pressure generating device which can be shortened and reduced in size and whose central axes can be perfectly aligned, which has extremely great practical effects.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which FIG. 1 is a longitudinal sectional view along the line of FIG. 2 and FIG.
FIG. 3, which is a cross-sectional view taken along a line, is an overall view of the impact water pressure generating device including the embodiment shown in FIG. 1 at a plurality of locations, and is partially shown as a sectional view. 1...Upper cylinder, 2...Lower cylinder, 3...
Upper flange, 4... Lower flange, 5... Upper flange outer surface, 6... Lower flange outer surface, 7... Reference ring, 8... Mounting plate, 9... Reference ring mounting bolt, 10... Mounting plate. Bolt, 11... Tightening bolt, 12... Hammer, 13... Water pressure chamber.

Claims (1)

[Claims] 1. In an impact water pressure generating device in which a hammer moves at high speed in a cylinder and generates an impact water pressure in a water pressure chamber directly connected to the cylinder, the cylinder is connected to the upper cylinder in a plane perpendicular to the axis of the cylinder. An upper flange and a lower flange are provided on the outer peripheries of the upper and lower cylinders, respectively, and a mounting plate is detachably provided on the flange and can be fitted onto the flange outer periphery. An impact water pressure generating device comprising a reference ring fitted and fixed to the mounting plate, and further tightening the upper flange and the lower flange with a stator. 2. The flanges are upper and lower flanges that touch each other on the same plane as the dividing surface, both flanges are cylindrical with the cylinder center axis as the axis, and the diameters are the same, and the upper flange has the same diameter as the lower flange. 2. The device according to claim 1, wherein a plane parallel to the contacting plane is provided on the opposite side (i.e., the upper surface). 3. Claim 1 or 2, wherein the mounting plate is a circular plate with a hole in the center having a diameter larger than the outer diameter of the cylinder, and is attached to the upper flange with bolts. equipment. 4. The reference ring is a cylindrical body with an extremely small gap formed between it and the flange, has a length that can enclose both the upper and lower flanges, and has a flange-like mounting portion that is joined to the mounting plate. An apparatus according to any of claims 1 to 3, characterized in that it has: 5. The device according to claim 1, wherein the mounting plate and the reference ring are configured as a semi-circular plate and a semi-cylindrical cylinder with a center angle of 180 degrees, respectively. 6. The device according to claim 1, wherein the cylinder has two or more dividing surfaces that divide the cylinder into an upper cylinder and a lower cylinder. 7. Claim 6, wherein the cylinder has two dividing surfaces, and the distance between the two dividing surfaces is slightly longer than the entire length of the hammer in the cylinder. Apparatus described in section. 8 The cylinder has two dividing surfaces, and the position of the lower dividing surface of the two dividing surfaces is at least slightly lower than the position of the uppermost end of the hammer (when it is at rest). Apparatus according to claim 6 or claim 7, which is defined as above.