JP5876608B1 - Non-contact type piston leakage prevention structure and mechanism for square type low pneumatic cylinder. - Google Patents

Abstract

Provided is a piston structure having a square section with a low pneumatic pressure (maximum operating pressure range of about 1 kg / cm2G), which requires no sealing material, has no short-term consumables, and has negligible sliding resistance. The mechanism is simple and robust, and adopts a non-contact and minimal clearance adjustment method in the cylinder inner dimensions, and replaces the W ball bushing 10 or the LM guide 18 with an average friction coefficient of 0.002, or the like. Other than the above, we proposed a piston component configuration and its structural mechanism that makes contact resistance negligible, has minimal leakage functions, has no short-term consumables, and is highly durable. [Selection] Figure 1

Description

  Piston for high-speed and high-frequency switching in a sequential compression system for atmospheric air using multiple low-pneumatic cylinders with a square cross section eliminates the need for sealing materials and eliminates short-term consumables and negligible sliding resistance For this reason, it has a structure and structure that prevents leakage around the piston, making it easy to process and adjust assembly while supporting the essential non-contact.

  In Japanese Patent No. 5226878 (hereinafter referred to as Publication 1), atmospheric air is connected to a plurality of small and large cylinders, and all of these are continuously operated in the same period by the peristaltic arc of the peristaltic movement. By making it possible to use the gas compression characteristics, which constitutes an “air power generation device” and “buoyancy power generation device” that uses a sequential compression device that achieves motorized operation at the same time, it exhibits an excellent function As a premise for traction and efficient motorized operation, first, indispensable parts and their control method, obtained Japanese Patent No. 5654657 (hereinafter referred to as publication 2), agile and accurate, etc. Aside from one property under preparation for filing an application, the remaining one item described in the above technical field, the so-called application, is invented by the invention of the supplementary patent for the basic patent publication 1. Clear all just in case Isono exert traction matter is up to the discretion of the completion.

Japanese Patent No. 5226878 (referred to as publication 1 in this application) Japanese Patent No. 5654657 (referred to as publication 2 in this application)

  The above publication 2 is a pneumatic control system and its components that are essential for managing the operation of the publication 1. For this application, the small clearance device of a certain scale or less is processed and managed with the following minimum clearance seal such as JIS tolerance. Although the scale boundary is not specified, the JIS tolerance is inevitably large according to the size, and this fact is a serious drawback if it is limited to the cylinder piston seal performance in publication 1. Leakage of this problem is a fatal and serious flaw with respect to Gazette 1, such as the amount of leakage caused by this is proportional to the cube of the gap size (see paragraph 0005 below). The structure and mechanism for minimizing air leakage around the cylinder piston, especially in large-scale equipment, such as the so-called classification examples by scale described in the following paragraph (0005). This is a proposal for minimizing this decrease in efficiency. This proposal ensures seal performance that surpasses the JIS fit tolerance management described in detail below, simplifies parts processing, simplifies assembly adjustment, and ensures realistic compatibility. In general, this application, which aims to achieve the functions and traction of Gazette 1, is generally overlooked because it contributes to contributions that are unrelated to the principle theory, but it is not adopted. However, it is up to the proposal that the publication 1 is practically practically impossible.

More specifically, the dedicated cylinder used in the publication 1 has a square cross section and the clearance around the piston is also helped by the working pressure range extremely low pressure (up to about 1 kg / cm ² G), for example, JIS tolerance G6h5 Process control to minimum clearance seals, no seal material required, no short-term consumables, ball bushing with an average sliding friction coefficient of 0.002, or LM guides instead of this, non-contact and negligible sliding resistance, etc. In addition to the structure that is fundamentally different in dimension from the general commercial products, the cylinder casings, the fuselage, and the pistons are lighter and the same material with the same thermal expansion coefficient for clearance management. The plate processing of the plate is unnecessary, and this processing is in principle four sides of the outer periphery and drilling only. The so-called publication 2 described above makes it possible to perform a quasi-high-speed high-frequency switching operation aiming at one cycle of cylinder operation = 1 reciprocation per second, and the cycle time maintains a positive inverse proportion to the input / output power. One property under preparation is trying to minimize this target cycle shortening while improving reliability by improving this function and simplifying the mechanism, and this application does not specify the cross-sectional dimension boundary, If it is below a certain scale, it will be perfect with some contrivance based on the above JIS tolerance (for example, high precision machining instructions aiming at the middle of the tolerance as much as possible with the condition that G6 is changed to H6 and the tolerance is zero) Actually, for example, the cylinder cross section for power generation scale of 100 kW / h is 2 × 1 m, and the scale of 1,000 kW / h is 8 × 2.5 m (both compression from atmospheric pressure air and maximum stroke of each cylinder) As long as it is within 1m, the tolerance application management is too large and can be said to be impossible, and the speculation of Gazette 1 is actually within the expected range. In addition, there is a literature, such as that the amount of gas leakage from the gap with the above tolerance is proportional to "the differential pressure x time before and after the cube of the gap x length x". The condition for this is rectification. Therefore, in order to make this a turbulent flow, the minimum shim adjustment clearance on the outer periphery of the piston and the one-to-one labyrinth type on the entire outer periphery of the vertical and horizontal flat bar sets 3.4 The triple synergistic turbulence effect with grooving and high-speed sliding in the cycle can be expected to increase further, and the actual gap size resulting from the JIS tolerance in the large-scale case is far from the gap area. JIS officials at these scales Management is not suitable.

  The structure of the piston shown in FIG. 1 is divided into a rod-side piston plate 1 and a head-side piston plate 2, both of which are rough processed with a sufficient gap with respect to the cylinder body dimensions (in the case of FIG. 2 mm), a rod stamping plate 13 whose inner diameter is precisely machined is firstly attached to a rod 11 held via a centered and fixed W ball bushing 10 or an LM guide 18 or an oilless bushing 19 instead of After the rod-side piston plate 1 is almost equally divided and fixed with screws, both of which are fixed once using a hard lock bearing nut (trade name) 14 or the like to enable forward / backward movement for adjusting the gap shim. The three sides that touch the inner dimensions of the cylinder of the two flat flat bars (hereinafter referred to as FB) 3 that are cut and finished at both ends above and below the rod-side piston plate 1 are thickened on an example scale. For example, ultra-thin shim adjustment of about 20 μm or less (this is irrelevant part in this application, but in this case, the vertical dimensions of the rod side casing inner plate 7, the head side casing inner plate 16, and the cylinder body side plate 12 are the mounting standards of the body size) It is not suitable for reasons of variation, and it is natural that careful processing such as long side and short side is required for general processing, and these three points are combined processing for all cylinders constituting one device. After that, both ends of the two vertical FBs 4 are adjusted and attached to the piston plate 1 on the rod side. Pressed against the lateral FB3, adjusted to the rod side piston plate 1 only after adjusting the thin shim only on the side in contact with the inner dimensions of each cylinder, and then fixed to the rod side piston plate 1 with a seal backup square bar 5 and a corner seal. After firmly tightening and fixing together with the block 6, after removing only the hard lock bearing nut 14 once mounted and inserting the head side piston plate 2, the longitudinal and lateral FB3, 4 already installed, seal backup rod 5 corner seal block 6 rod The assembly work is completed by fixing the screw in the tap hole of the stamping plate 13 {This is an item in the form for carrying out (because it is an item to be sorted out) and is partly duplicated, and the front view in FIG. 1 is a rod. Only the intermediate material including vertical and horizontal FB3 and 4 sandwiched between the head side piston plates 1 and 2 is shown, and the M8φ10CB hole is for tightening to the rod side piston plate 1, and M6 is the head side piston plate 2 For mounting, other lateral tightening, etc. is as shown in the illustration} Constituting the cylinder piston rich ensure durability easy and accurate.

  FIG. 2 is an enlarged view of the portion A shown in FIG. 1, and the processing amount slightly increases at the center L-shaped step type butt adjustment surface 15 immediately below, but another method omitting the intermediate seal backup square bar 5 In addition, another proposal is presented in which a screw insertion window is provided in the vertical FB4 and four corner seal blocks 6 related to the horizontal FB3 are omitted, and examples of these selected combinations are shown below.

  Regardless of whether the square piston size is 2x1m or 8x2.5m, or larger than this, the practical scale of the present application is irrelevant to the JIS fit tolerance, regardless of the actual size, 2 of the rod side piston plate 1 and the head side piston plate 2 Dividing the sheet itself makes the interior hollow, saving material and reducing weight, and rough machining with a sufficient gap on the four outer circumferences depending on the scale (in some cases, no chamfering is required) The manufacturing of seal mechanism parts that affect the efficiency and function is permitted only with FB end face cutting and drilling, and assembly adjustment is easy and easy to adjust. The gap management is extremely thin. The so-called JIS tolerance, which is completed only by adjusting the shim and screwing the intermediate seal back-up square bar 5 and the corner seal block 6 as auxiliary materials, etc. Confirming the reason for refusing the management method, first of all, it is premised that the seal material that also serves as a short-term consumable material with a large sliding resistance cannot be used, and these uses are expensive due to precision processing In addition, there is a disadvantage that the gap becomes larger as the cylinder body size becomes larger, and this drawback causes a fatal defect including the use of a large number of cylinders in the atmospheric pressure air sequential compression apparatus according to the present application. In addition, the shim adjustment method using aluminum FB not only far surpasses its functional reliability in practical terms, but also expects the triple synergistic effect of the above paragraph (0005), giving a cheap, simple and reliable result. In addition, since the effect of the present application is irrelevant to the principle theory, it is a very important technology, such as being able to eliminate failure sources that tend to be overlooked in advance, and this essence is simple and excellent in reliability and durability in use. Which also increases the Yoriyukido and it is up to the thoughtful.

  It is a joint explanatory drawing which showed the concrete piston structure structure and dimension example of a cross section 2x1m.   FIG. 2 is an enlarged view of a part A in FIG. 1, and is an explanatory diagram of a selection combination example of alternative presentation and alternative of this part.

  FIG. 1 is an example of a specific piston structure dimension with a cylinder cross-sectional inner dimension of 2 × 1 m, showing the configuration of the piston and all the parts, so-called rod side casing inner plate 7 and outer plate 9, cylinder body upper and lower plates 8 on the same side. It is a cylinder assembly state diagram showing almost all of the connecting parts such as four examples of the face plate 12 and the cylinder rod 11, the W ball bushing 10, and this piston is composed of the rod side piston plate 1 and the head side piston plate 2. The outer circumference is not divided into two pieces, and both are not precisely machined, but both have a sufficient gap (for example, about 2 mm on both sides of the case size scale). Finishing, depending on the case, is allowed as it is, and first, for example, on four quenching rods 11 attached via a centered and fixed W ball bushing 10 Together with the rod spigot plate 13 that precision machining diameter, the rod-side piston plate 1 and the gap approximately equal to the cylinder dimensions, once tightened with the hard rock bare phosphorus nut (trade name) 14 or parts or the like in place of this.

  In the top view of FIG. 1, the head side inner plate 16 and the outer plate 17 that need to be assembled once and assembled to incorporate the piston are also shown in a reference view. The LM guide 18 shown for explanation of an example that is easy to mount from the outer periphery because of the rectangular shape is suitable for a large-scale apparatus and has the same value as an average friction coefficient of 0.002, and an example of using the guide rail bracket 20 and the slider reinforcement 21 is presented. (In this case, the rod through-hole of the casing is subjected to leakage prevention processing). In particular, a large-scale device including a cylinder cross section of 8 × 2.5 m is considered to be an LM guide method in principle because of the availability of a commercial product. In the case of using a bush, LM is not used.

  When the adjustment is completed above and below the rod side piston plate 1, an adjustment gap of about 2 mm is provided in the center (this gap is meaningless without any change in function even if it is inclined, complicated processing such as unevenness or level difference, etc.) After mounting the set and adjusting the shim as thin as possible on all three surfaces contacting the cylinder (specifically, for example, if possible with a thickness of 20 μm, it is as thin as possible), and then screwing and fixing to the rod side piston plate 1, Similarly, two sets of two vertical FB4s with an adjustment gap of about 2mm in the center are attached to the center of the left and right sides, and the upper and lower ends are pressed inside the horizontal FB3, and the two left and right side surfaces that are in contact with the cylinder inside dimension are extremely thin After adjustment, tighten the screws on the piston plate 1 on the rod side. After mounting each of these two sets of 4 sets, tighten 4 each of the intermediate seal backup square bar 5 (□ 30 bar) and the corner seal block 6 (t30 □ 150). After Remove only the lock bearin nut (trade name) 14, fit the head side piston plate 2, tighten it using all the screw holes of the vertical and horizontal FB3, 4 and other intermediate parts, and tighten the hard lock bearin nut 14 to Assembling adjustment work is completed, and finally the head side casing inner plate 16 and outer plate 17 are attached, and the cylinder single item assembling adjustment work is completed. (Unrelated to this application, bending due to internal pressure on the body plate is prohibited, reinforcement with ribs etc. It is important that filling with silicon rubber or applying liquid packing is effective as necessary.

  For these tightening bolts or threaded parts, the rod side piston plate 1 is used with a cap bolt (hereinafter referred to as CB) hole of the sandwiched intermediate member after application of Loctite (trade name) etc. to prevent loosening. The head side piston plate 2 is screwed and fixed using the tapped hole of the sandwiched intermediate part. In principle, the piston is devised so that it does not penetrate into the piston and lead to leakage of the operating low-pressure air. If these tightening screws are M6, for example, the CB hole is for M8 (φ10), etc., and the base material such as vertical and horizontal FB intermediate material, both piston plates 1 and 2 etc. with a vertical and horizontal adjustment margin of 2 mm is used. Because it is all aluminum, use a washer and, if possible, a washer at the CB head to protect against dent deformation. Also, the vertical and horizontal maximum of ± 2 mm can be adjusted on the scale of the above example, and single processing with JIS tolerance is possible. In other words, it does not require precision machining, reduces the processing burden, and makes it easy and easy to adjust the built-in to ensure reliable and accurate sealing performance. The size of this material is generally about M8 for SS materials, but since the screw tightening strength is sufficient, it also serves to prevent the entry of low-pressure air. In consideration of protection, the screwing length should be about M6 in order to increase the thickness ratio.

  In the above paragraphs (0010 to 13), as the best possible method, FIG. 1 is used to divide and explain the embodiment, FIG. 2 is an enlarged view of part A in FIG. Although the processing is increased by the FB step type butt adjustment surface 15 by the center L-shaped processing, which is an explanatory diagram, by providing these, four intermediate seal backup square bars 5 can be omitted, An alternative plan in which a screw insertion window 23 is provided in the FB 4 and four corner seal blocks 6 related to the vertical and horizontal FBs 3 and 4 are omitted is shown, and examples of these selective combinations are shown below.

  Gazette 1, which is a basic patent to which the present application relates, is an invention that constitutes an “air power generation device” and a “buoyancy power generation device” using a sequential compression device of atmospheric pressure air, both of which are pioneering the “unused energy field”. This operating speed target, which is believed to be a periodical invention device, is a complementary patent for preventing efficiency reduction and ensuring cycle time at the time of switching while achieving quasi-high-speed high-frequency switching operation of 1 cycle 1 reciprocation 1 second. It was the invention of publication 2, and it was positioned as the present application to demonstrate the function of preventing leakage loss in the sequential compression process and to complement the performance guarantee, and any one of these functions would be missing. It is extremely important to maintain an essential complementary relationship, as described in the individual documents, and to ensure that these important matters are detected and prevented in advance in advance. It was confirmed that the invention was I want to.

1 Rod side piston plate 2 Head side piston plate 3 Horizontal gap adjustment flat bar set 4 Vertical gap adjustment flat bar set 5 Intermediate seal backup square bar 6 Corner seal block 7 Rod side casing inner plate 8 Cylinder body upper and lower plate 9 Rod side casing outside Plate 10 W ball bush 11 Cylinder rod 12 Cylinder body side plate 13 Rod stamping plate 14 Hard lock bearing nut 15 FB step type butt adjustment surface 16 Head side casing inner plate 17 Head side casing outer plate 18 LM guide 19 for piston 19 Oiles bush 20 LM Guide Rail Bracket 21 Slider Reinforcement Material 22 Horizontal Step Type Clearance Adjustment Flat Bar Set (Alternative)
23 Screw insertion mounting window

Claims (4)

A piston component configurations incorporated permit clearance adjustment relative to the fuselage inside dimension of the square cross-section a low-altitude pressure specifications cylinder, and the rod-side piston plate having a gap the outer peripheral four sides with respect to the cylinder body inside dimension, the outer periphery and the head-side piston plate four sides has a gap relative to the cylinder body inside dimension, a spigot plate sandwiched between the rod-side piston plate f head-side piston plate, is inserted and fixed to the spigot plate A pair of horizontal rods that face a plurality of cylinder rods and the three cylinder body dimensions, and are attached to the rod side piston plate and the head side piston plate so as to be able to adjust a gap between the cylinder body dimensions and three surfaces. It is attached between the flat bar and a pair of the horizontal flat bars so as to follow the cylinder body dimensions, and the gap between the cylinder body dimensions can be adjusted on the rod side. A pair of vertical flat bar attached to the piston plate and the head-side piston plate, a corner seal block provided inside angle of attachment points between the transverse flat bar and the vertical flat bar, the horizontal flat bar and the vertical A seal backup square bar provided at the center of the inner side of the flat bar, the rod side piston plate, the head side piston plate, the stamping plate, the plurality of cylinder rods, the horizontal flat bar, The vertical flat bar, the corner seal block, and the seal backup square bar are connected to each other by screws, and the piston component configuration. A piston part structure that is built in such a manner that a gap can be adjusted with respect to the cylinder body dimension of a cylinder with a low air pressure specification with a square cross section. A head-side piston plate having four sides having a gap with respect to the cylinder body dimension, a stamp plate sandwiched between the rod-side piston plate and the head-side piston plate, and a plurality of inserts fixed to the stamp plate The cylinder rod faces three surfaces of the cylinder body size, and a gap L between the cylinder body size and the three surfaces of the cylinder body size can be adjusted, and a pair of centers L are attached to the rod side piston plate and the head side piston plate. The cylinder barrel is mounted between a horizontal flat bar having a stepped butting surface and a pair of the horizontal flat bars so as to follow the cylinder body dimensions. A vertical flat bar having an L-shaped stepped butting surface at the center and a screw insertion mounting window at both end surfaces, which are attached to the rod-side piston plate and the head-side piston plate so that the gap between the inner dimension and the inner dimension can be adjusted, The rod side piston plate, the head side piston plate, the stamping plate, the plurality of cylinder rods, the horizontal flat bar, and the vertical flat bar are coupled by screws. Part structure of the characteristic piston. A piston part structure that is built in such a manner that a gap can be adjusted with respect to the cylinder body dimension of a cylinder with a low air pressure specification with a square cross section. A head-side piston plate having four sides having a gap with respect to the cylinder body dimension, a stamp plate sandwiched between the rod-side piston plate and the head-side piston plate, and a plurality of inserts fixed to the stamp plate A pair of horizontal flat bars that face the cylinder rod and the three cylinder body dimensions, and are attached to the rod-side piston plate and the head-side piston plate so that the gap between the cylinder body dimensions and the three surfaces can be adjusted. And between the pair of horizontal flat bars so as to follow the dimensions of the cylinder body, and the gap between the cylinder body and the cylinder can be adjusted. A vertical flat bar having an L-shaped stepped butting surface at the center and a screw insertion mounting window at both end sides attached to the stone plate and the head side piston plate, and a seal provided at the inner center of the horizontal flat bar A back-up square bar, the rod-side piston plate, the head-side piston plate, the stamping plate, the plurality of cylinder rods, the horizontal flat bar, the vertical flat bar, and the seal backup angle. A rod is a component part of a piston characterized by being connected by screws . A piston part structure that is built in such a manner that a gap can be adjusted with respect to the cylinder body dimension of a cylinder with a low air pressure specification with a square cross section. A head-side piston plate having four sides having a gap with respect to the cylinder body dimension, a stamp plate sandwiched between the rod-side piston plate and the head-side piston plate, and a plurality of inserts fixed to the stamp plate The cylinder rod faces three surfaces of the cylinder body size, and a gap L between the cylinder body size and the three surfaces of the cylinder body size can be adjusted, and a pair of centers L are attached to the rod side piston plate and the head side piston plate. The cylinder barrel is mounted between a horizontal flat bar having a stepped butting surface and a pair of the horizontal flat bars so as to follow the cylinder body dimensions. A pair of vertical flat bar for the clearance adjustably the rod side piston plate with internal dimensions attached to said head-side piston plate, is provided inside angle of attachment points between the transverse flat bar and the vertical flat bar corner A seal block, and a seal backup square bar provided at an inner center of the vertical flat bar, the rod side piston plate, the head side piston plate, the stamping plate, the plurality of cylinder rods, The horizontal flat bar, the vertical flat bar, the corner seal block, and the seal backup square bar are coupled to each other by screws .

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