JP2012219864A - Pressure intensifying system and drive system using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pressure intensifying system efficiently utilizing liquid in the system and intensifying the pressure after using the liquid as hydraulic pressure of a hydraulic pressure supply source, and to provide a drive system using the same.SOLUTION: The pressure intensifying system A2 is a device for driving the drive device 3 by using the hydraulic pressure supplied from the hydraulic pressure supply source W. The pressure intensifying system A2 includes: a drive-side piston cylinder mechanism 1 driven by the hydraulic pressure supplied from the hydraulic pressure supply source W; a driven-side piston cylinder mechanism 2 reciprocated through hydraulic supply paths P3, P5 by reciprocating motions of a drive piston 12 of the drive-side piston cylinder mechanism 1; and a pressure intensifying device B1 disposed to the hydraulic supply paths P3, P5 and further intensifying the hydraulic pressure that has been intensified by the drive piston cylinder mechanism 1, and thereby to drive the driven-side piston cylinder mechanism 2. The pressure intensifying system A2 intensifies drive pressure loaded on the driven-side piston cylinder 2 with respect to original pressure of the hydraulic pressure supply source W.

Description

  The present invention relates to, for example, a pressure increasing system that increases the hydraulic pressure of tap water or the like from a hydraulic pressure supply source, and a drive system using the pressure increasing system.

  Conventionally, the water pressure of tap water or the water pressure of a water tank installed in a high place such as a high-rise building or mountainous area is used as the source pressure of the hydraulic pressure supply source to drive the drive device or drive the water wheel to generate electricity. An apparatus is known (see, for example, Patent Document 1).

  The driving system (driving device) disclosed in Patent Document 1 is a driving device that obtains a driving force using the pressure of the liquid from the liquid tank at a high place, and is based on the pressure of the liquid from the liquid tank at the high place. A pair of driving cylinders having a reciprocating driving piston to be driven, and ends of piston shafts connected to the driving pistons of the pair of driving cylinders are connected to each other. And a reciprocating mechanism that reciprocates in mutually opposite phases.

  Further, a pressure increasing system (negative pressure increasing generating device) described in Patent Document 2 includes a driving side piston / cylinder mechanism driven by a hydraulic pressure supplied from a hydraulic pressure supply source, and a driving side piston / cylinder. With the transmission member to which the reciprocating motion of the drive piston of the mechanism is transmitted, the driven piston / cylinder mechanism having the driven piston driven via the transmitting member, and the reciprocating motion of the driven piston of the driven piston / cylinder mechanism Mainly a pressure supply path for supplying negative pressure or pressure generated by sucking or discharging gas, and a switching means for switching the supply destination of the hydraulic pressure supplied into the drive cylinder of the drive side piston / cylinder mechanism It is prepared for.

Japanese Patent No. 3786672 (FIGS. 1 and 8) Japanese Patent No. 3936961 (FIG. 1)

However, although the conventional pressure increasing system and the drive system described in Patent Documents 1 and 2 both use liquid pressure such as tap water, tap water introduced from the hydraulic pressure supply line is not used. The water is discharged from the drainage pipe through the switching means (switching mechanism) and the drive side piston / cylinder mechanism.
For this reason, the conventional pressure-increasing system and driving system described in Patent Documents 1 and 2 discharge a liquid such as tap water as a hydraulic supply source to the outside, and thus a large amount of liquid is required. It was a factor of cost increase.

  Therefore, the present invention provides a pressure increasing system that can efficiently increase the pressure (driving liquid) used as the hydraulic pressure of the hydraulic pressure supply source in the system and a driving system using the same. Let it be an issue.

  In order to solve the above-described problem, the pressure increasing system according to claim 1 is a pressure increasing system for driving a driving device using a hydraulic pressure supplied from a hydraulic pressure supply source, wherein the hydraulic pressure is Drive-side piston / cylinder mechanism driven by fluid pressure supplied from a supply source, and driven-side piston / cylinder reciprocated via a fluid pressure supply path by reciprocation of the drive piston of the drive-side piston / cylinder mechanism A pressure increasing device that is disposed in the hydraulic pressure supply path and further increases the hydraulic pressure increased by the driving piston / cylinder mechanism to drive the driven piston / cylinder mechanism, The driving pressure applied to the driven piston / cylinder mechanism is increased with respect to the original pressure of the hydraulic pressure supply source.

  According to the first aspect of the present invention, when a hydraulic pressure is applied to the driving side piston / cylinder mechanism from the hydraulic pressure supply source, the hydraulic pressure is increased by the driving side piston / cylinder mechanism, and further increased. The pressure is increased by the pressure device and sent to the driven piston / cylinder mechanism, and the driven piston / cylinder mechanism can be driven with a hydraulic pressure that is larger than the original pressure from the hydraulic pressure supply source. In this pressure increasing system, the hydraulic pressure supplied from the hydraulic pressure supply source is increased and used for the driving side piston / cylinder mechanism and the driven side piston / cylinder mechanism. The liquid (driving liquid) as the pressure medium can be increased in pressure by efficiently using in the system without being discharged to the outside. For this reason, by suppressing the discharge of the driving liquid supplied from the hydraulic pressure supply source serving as the driving source, it is possible to prevent waste of the driving liquid and contribute to energy saving.

  The pressure-intensifying system according to claim 2 is the pressure-increasing system according to claim 1, wherein the driving side piston / cylinder mechanism includes a driving first cylinder to which hydraulic pressure is supplied from the hydraulic pressure supply source; A drive first piston which is installed in the drive first cylinder so as to be able to advance and retreat and which is operated by a hydraulic pressure supplied from the hydraulic pressure supply source, and is integrally provided with a diameter smaller than the diameter of the first drive piston. A second driving piston that is driven together, and the liquid is increased in pressure as the second driving piston advances and retreats and discharged to the pressure increasing device, or the liquid from the pressure increasing device is reduced and sucked. And a drive second cylinder having a cross-sectional area smaller than a cross-sectional area of the drive first cylinder.

  According to the second aspect of the present invention, when the hydraulic pressure is supplied from the hydraulic pressure supply source into the driving first cylinder, the driving side piston / cylinder mechanism is driven by the hydraulic pressure and the driving first piston. A first piston and a small-diameter driving second piston are driven. The drive second piston is formed in a cross-sectional area smaller than the cross-sectional area of the drive first cylinder, so that the hydraulic pressure can be increased by advancing and retreating the drive second piston. The increased hydraulic pressure is sent to a pressure increasing device and further increased.

  The pressure-intensifying system according to claim 3 is the pressure-increasing system according to claim 1 or 2, wherein the hydraulic pressure supply source is made of tap water supplied from a water pipe, and the drive-side piston -Driving of the cylinder mechanism The first piston is driven by the water pressure of the tap water.

  According to a third aspect of the present invention, in the driving side piston / cylinder mechanism, the first driving piston is driven by the water pressure of tap water supplied from a hydraulic pressure supply source. For this reason, the drive-side piston / cylinder mechanism can be driven without providing a special drive source such as a pump and can be driven efficiently without discharging tap water to the outside, so that tap water is not consumed. It is economical and does not adversely affect the external environment.

  The pressure-intensifying system according to claim 4 is the pressure-increasing system according to claim 2 or 3, wherein the driven-side piston / cylinder mechanism is supplied with the hydraulic pressure increased by the pressure-intensifying device. A driven cylinder that is disposed in the driven cylinder, moves forward and backward with the hydraulic pressure increased by the pressure increasing device, and a driven piston shaft that is integrally formed with the driven piston and moves forward and backward together. The driven piston shaft is disposed from inside the driven cylinder to the outside, and drives the drive unit of the driving device in conjunction with the advance and retreat of the driven piston shaft.

  According to the fourth aspect of the present invention, when the hydraulic pressure increased by the pressure increasing device is supplied to the driven cylinder, the driven piston is operated by the increased hydraulic pressure, The driving unit of the driving device is driven with a strong driving force by the hydraulic pressure greatly increased with respect to the original pressure of the hydraulic pressure supply source.

  A drive system according to a fifth aspect is a drive system using the pressure increasing system according to the fourth aspect, wherein the drive system communicates with the driven cylinder via a pressure switching valve and is disposed at a higher position than the driven cylinder. And a pressurization device that is driven in a reverse phase with respect to the drive piston of the drive side piston / cylinder mechanism by the hydraulic pressure supplied from the hydraulic pressure supply source, and the pressure switching valve is The hydraulic pressure release path to the top and bottom open tank is alternately switched according to the pressurization state and non-pressurization state of the hydraulic pressure from the pressurizing device, and sent from the driven cylinder to the top and bottom open tank and stored. Further, the liquid as the pressure medium is caused to flow out from the top and bottom open tank back to the driven cylinder in the reverse phase.

  According to the fifth aspect of the present invention, the driven cylinder and the working liquid in the driven cylinder in the drive system are sent to the lower layer of the top and bottom open tank via the pressure switching valve when the driven piston is operated and pushed out. The pressure switching valve stores and discharges the flow of the hydraulic pressure supply path to the top and bottom open tank according to the pressurized state and non-pressurized state of the hydraulic pressure from the pressurization device driven in the opposite phase to the drive piston. Switch alternately. When the driven piston is driven in the opposite direction by switching the pressure switching valve, the working liquid in the top-and-bottom open tank at a high place flows out with potential energy and flows backward into the driven cylinder. For this reason, the working liquid can be used repeatedly without being discharged to the outside. The drive system is driven by the water pressure of the tap water from the hydraulic pressure supply source and the potential energy of the liquid (working liquid) in the top and bottom open tank at a high place as a power source. Since exhaust gas containing carbon or the like is not discharged into the atmosphere, it can be used as a clean engine.

  A drive system according to a sixth aspect is the drive system according to the fifth aspect, wherein the drive system is driven by a hydraulic pressure supplied from the hydraulic pressure supply source and is smaller than a cross-sectional area of the first driving cylinder. A sub-drive-side piston / cylinder mechanism having a sub-drive first cylinder formed in a cross-sectional area and driven to advance / retreat symmetrically in opposite phase with respect to the drive-side piston / cylinder mechanism, and the sub-drive side piston / cylinder A secondary driven piston / cylinder mechanism that is driven in accordance with the reciprocation of the piston of the mechanism, and a hydraulic pressure supply path between the secondary driving side piston / cylinder mechanism and the secondary driven piston / cylinder mechanism. And a sub-pressure increasing device that further increases the hydraulic pressure increased by the sub-driving piston / cylinder mechanism to drive the sub-driven piston / cylinder mechanism.

According to the sixth aspect of the present invention, the drive system increases the pressure in the sub hydraulic pressure supply path between the sub drive side piston / cylinder mechanism and the sub driven side piston / cylinder mechanism by the sub drive piston / cylinder mechanism. Even if the original pressure of the driving liquid supplied from the liquid supply source is small, the original pressure of the drive liquid supplied from the liquid supply source can be reduced However, it can be driven at a hydraulic pressure that is greatly increased.
In addition, this drive system is driven by the liquid pressure of the drive liquid supplied from the liquid pressure supply source, so that the liquid or the like can be driven without being discharged to the outside, and fuel and electric power are unnecessary. Since exhaust gas such as carbon dioxide and waste water are not discharged to the outside, the surrounding environment is not adversely affected. Furthermore, since the drive system can be driven without consuming the drive liquid of the original pressure, the drive system can be driven with energy saving and low cost.

  A drive system according to a seventh aspect is the drive system according to the fifth aspect, wherein the driven piston shaft is formed with a driven drive rack that advances and retreats integrally with the driven piston shaft. A pinion meshing with the driven drive rack; and an operating piston integrally forming a rack meshing with the pinion; and at least one piston / cylinder mechanism interlocked with the driven side piston / cylinder mechanism; An output gear that rotates via a gear mechanism that is linked to the operating rack; a clutch that transmits and disconnects the driving force from the driven piston / cylinder mechanism and the sub driven piston / cylinder mechanism to the output gear; It is characterized by having.

  According to the seventh aspect of the present invention, when the driven drive rack of the driven piston shaft is driven, the output gear is rotationally driven via a gear mechanism such as a pinion of the drive device or an operating rack. In addition, the drive device can significantly increase power because the other piston / cylinder mechanism cooperates with the driven piston / cylinder mechanism in conjunction with the advance / retreat drive of the driven drive rack.

  The present invention can provide a pressure increasing system that can increase the driving liquid used as the hydraulic pressure of the hydraulic pressure supply source without discharging it to the outside. In addition, a drive system using a small hydraulic pressure as a drive source can be provided by using this pressure increasing system.

It is a block diagram which shows the pressure increase system and drive system which concern on embodiment of this invention. It is a model diagram which shows the pressure increase system and drive system which concern on embodiment of this invention. It is an expansion schematic diagram which shows the 1st drive side piston * cylinder mechanism and pressurization apparatus in the pressure increase system and drive system which concern on embodiment of this invention. It is an expansion schematic diagram which shows the driven side piston * cylinder mechanism, the 1st supply apparatus, etc. in the pressure increase system and drive system which concern on embodiment of this invention. It is an expansion schematic diagram which shows the driven side piston * cylinder machine in the pressure increase system and drive system which concern on embodiment of this invention. It is an expansion schematic diagram which shows the sub follower side piston * cylinder mechanism and the 2nd supply apparatus in the pressure increase system and drive system which concern on embodiment of this invention. It is an expansion schematic diagram which shows the 1st action | operation piston and cylinder mechanism in the pressure increase system and drive system which concern on embodiment of this invention. It is an expansion schematic diagram which shows the 2nd action | operation piston and cylinder mechanism in the pressure increase system and drive system which concern on embodiment of this invention. It is an expansion schematic diagram which shows the sub drive side piston * cylinder mechanism in the pressure increase system and drive system which concern on embodiment of this invention. It is an expansion schematic diagram which shows the drive device in the pressure increase system and drive system which concern on embodiment of this invention.

Next, a pressure increasing system A2 and a drive system A1 according to an embodiment of the present invention will be described with reference to the accompanying drawings.
The pressure increase system A2 and the drive system A1 of the present invention shown in FIG. 1 are systems that increase the fluid pressure as a source pressure or drive the drive device 3, and the pressure source is not particularly limited. In other words, the hydraulic pressure supply source W only needs to apply fluid pressure to the drive-side piston / cylinder mechanism 1, the pressurizing device 8, and the sub-drive-side piston / cylinder mechanism 9, for example, at a high place. It may be a liquid storage tank (not shown) arranged, or may be a fluid pressure applied by a pump (not shown) or the like. Hereinafter, a case where the water pressure of tap water is used as the hydraulic pressure supply source W will be described as an example.
Note that the pressure increasing system A2 and the driving system A1 have different directions in the vertical and horizontal directions depending on the installation state.

≪Configuration of drive system≫
As shown in FIG. 1, the drive system A1 is a system that uses a pressure increase system A2 that converts a small fluid pressure into a large fluid pressure, and drives the drive device 3 with the fluid pressure increased by the pressure increase system A2. is there. The drive system A1 includes a hydraulic pressure supply source W, a hydraulic pressure supply path P, a drive-side piston / cylinder mechanism 1, a plurality of pressure boosters B, a driven-side piston / cylinder mechanism 2, and a drive device. 3, first supply device 4, second supply device 5, first working piston / cylinder mechanism 6, second working piston / cylinder mechanism 7, pressurizing device 8, sub-drive side piston / cylinder mechanism 9, a secondary driven piston / cylinder mechanism 10, a plurality of pressure switching valves V, a top and bottom open tank T1, a storage tank T2, a base F1, and a fixed frame F2. Yes.

  In this drive system A1, the hydraulic pressure of the hydraulic pressure supply source W is increased by the drive-side piston / cylinder mechanism 1, the sub-drive-side piston / cylinder mechanism 9 and the pressurization device 8, and the main pressure increase device B1 and sub In this system, the driving device 3 is driven by a hydraulic pressure increased by the pressure increasing device B2 via a plurality of piston / cylinder mechanisms (2, 4, 5, 6, 7, 8, 10).

≪Configuration of pressure boosting system≫
As shown in FIG. 2, the pressure increasing system A <b> 2 is a system that increases the driving pressure applied to the driven piston / cylinder mechanism 2 with respect to the original pressure of the hydraulic pressure supply source W. The pressure-increasing system A2 includes at least a driving side piston / cylinder mechanism 1 driven by water pressure supplied from a hydraulic pressure supply source W, and a driving first piston 12a and a driving second piston of the driving side piston / cylinder mechanism 1. And a driven-side piston / cylinder mechanism 2 that is driven in accordance with the reciprocating motion of the piston 12b.

≪Configuration of hydraulic supply source≫
The hydraulic pressure supply source W supplies the original pressure composed of fluid pressure (hydraulic pressure) to the driving side piston / cylinder mechanism 1, the pressurizing device 8, and the auxiliary driving side piston / cylinder mechanism 9 through the hydraulic pressure supply path P It is a supply source (drive source) for supplying and driving. The hydraulic pressure supply source W is made of, for example, tap water (driving liquid) supplied from the water pipe P1, and has a water pressure of about 0.3 Mpa. The hydraulic pressure supply source W is connected to the faucet V3 by a water pipe P1.

≪Configuration of source pressure supply path≫
As shown in FIG. 2, the source pressure supply path P <b> 2 is configured such that the water pressure of the water pipe P <b> 1 is connected in parallel via the faucet V <b> 3 and the gate valve V <b> 4, the driving side piston / cylinder mechanism 1, the pressurizing device 8, A tap water supply pipe for supplying to the drive side piston / cylinder mechanism 9. For this reason, the drive side piston / cylinder mechanism 1, the pressurizing device 8 and the sub drive side piston / cylinder mechanism 9 are loaded with the same water pressure (0.3 Mpa) (shown by the thick dotted line in FIG. 2). Source pressure supply path P2). The tap water in the original pressure supply path P2 is supplied to the drive first piston 12a of the drive side piston / cylinder mechanism 1, the pressurization first piston 82a of the pressurizer 8, and the sub drive side piston / cylinder mechanism 9 to the sub-drive side piston / cylinder mechanism 9. By the operation of the drive first piston 92a, the inside of the original pressure supply path P2 flows in the left-right direction, but does not flow out of the original pressure supply path P2.
That is, in the pressure increasing system A2 and the drive system A1, the tap water of the hydraulic pressure supply source W is driven using only the water pressure, and the tap water is discharged to the outside and the flow rate is consumed. There is no.

≪Configuration of drive-side piston / cylinder mechanism≫
As shown in FIG. 3, the drive-side piston / cylinder mechanism 1 increases the water pressure from the hydraulic pressure supply source W, and the increased water pressure is supplied to the main pressure increaser B1 (hydraulic pressure supply path) via a pipe P3 (hydraulic pressure supply path). It is a device that supplies to the pressure booster B). The drive-side piston / cylinder mechanism 1 is composed of a two-stage device in which a hydraulic piston-cylinder mechanism is connected to the upper side and a hydraulic piston-cylinder mechanism on the lower side.
The drive-side piston / cylinder mechanism 1 includes a drive first cylinder 11 to which water pressure is supplied from a hydraulic pressure supply source W, a drive first piston 12a provided in the drive first cylinder 11 so as to be able to advance and retract, A drive second piston 12b provided integrally with the drive first piston 12a; a drive second cylinder 13 that generates a hydraulic pressure higher than the hydraulic pressure of the hydraulic pressure supply source W in accordance with the operation of the drive second piston 12b; It is equipped with. For example, the drive-side piston / cylinder mechanism 1 can increase the internal pressure of the drive first cylinder 11 loaded with a water pressure of about 0.3 Mpa to a hydraulic pressure of 2.5 Mpa.

<Configuration of first driving cylinder>
As shown in FIG. 3, the drive first cylinder 11 is composed of a cylindrical hydraulic cylinder case, and the inside of the drive first cylinder 11 is provided with an upper chamber 11a to which tap water is supplied by the drive first piston 12a, and an opening. And a lower chamber 11b through which air enters and exits from a portion (not shown). The drive first cylinder 11 has a cross-sectional area S3 of the pressurization first cylinder 81 of the pressurization device 8 installed in a state where the cross-sectional area S1 of the drive first cylinder 11 communicates with the same source pressure supply path P2. And it is formed larger than the cross-sectional area S5 of the sub drive first cylinder 91 of the sub drive side piston and cylinder mechanism 9 (see FIG. 9).

<Configuration of drive piston>
As shown in FIG. 3, in the drive piston 12, the drive first piston 12a, the drive second piston 12b, the upper piston shaft 12c, and the lower piston shaft 12d are integrally formed, and they move up and down integrally. It is a piston. The drive piston 12 is operated by the water pressure supplied from the hydraulic pressure supply source W into the upper chamber 11a and the hydraulic pressure supplied from the pipes P3 and P4 into the drive second cylinder 13.

  The drive first piston 12a is a piston that lowers the drive piston 12 when the hydraulic pressure supplied from the hydraulic pressure supply source W is received. An upper piston shaft 12c is erected on the upper surface of the drive first piston 12a, and a lower piston shaft 12d is suspended on the lower surface. The upper piston shaft 12c is fitted in a through hole formed in the upper surface of the drive first cylinder 11 so as to be able to advance and retreat, and guides the vertical movement of the drive first piston 12a. The lower piston shaft 12d is a rod-shaped part that performs the function of the driving second piston 12b, and is fitted into a through-hole formed in the lower surface of the driving first cylinder 11 so as to freely advance and retreat, and the driving first piston 12a and It guides the vertical movement of the drive second piston 12b.

  The drive second piston 12b is a rod-like piston installed in the drive second cylinder 13 so as to be movable up and down, and is a lower portion of the lower piston shaft 12d. The drive second piston 12b is formed with a diameter d2 smaller than the diameter d1 of the drive first piston 12a. The driving second piston 12b operates integrally with the driving first piston 12a, and when lowered, the driving oil in the driving second cylinder 13 is increased and pushed out toward the main pressure increasing device B1 to rise. Sometimes, the hydraulic oil in the pipe P3 (hydraulic pressure supply path) is sucked.

<Configuration of the driving second cylinder>
The driving second cylinder 13 is a cylindrical hydraulic cylinder case continuously provided on the lower surface of the driving first cylinder 11, and a pipe P <b> 3 and a pipe P <b> 4 are installed on the lower surface portion. The drive second cylinder 13 increases the liquid pressure higher than the water pressure as the drive second piston 12b advances and retreats, and discharges the liquid to the main pressure booster B1 (pressure booster B) or from the main pressure booster B1. The liquid is vacuumed and aspirated. The drive second cylinder 13 is formed with a cross-sectional area S <b> 2 smaller than the cross-sectional area S <b> 1 of the drive first cylinder 11.

≪Configuration of pressure booster≫
As shown in FIG. 1, the pressure booster B includes a pressure booster that boosts the hydraulic pressure supplied to the pressure booster B and sends the pressure to the downstream side. The drive system A1 includes, for example, a main pressure booster B1, a sub pressure booster B2, a first pressure booster B3, a second pressure booster B4, a third pressure booster B5, and a fourth pressure booster. There is provided a pressure booster B comprising a device B6 and a fifth pressure booster B7.

<Configuration of main pressure booster>
As shown in FIG. 4, the main pressure booster B <b> 1 is interposed between pipes P <b> 3 and P <b> 5 (hydraulic pressure supply path) between the driving side piston / cylinder mechanism 1 and the driven side piston / cylinder mechanism 2 to drive This is a device for driving the driven piston / cylinder mechanism 2 by further increasing the hydraulic pressure increased by the piston / cylinder mechanism 1 (see FIG. 3). For example, the main pressure increasing device B1 increases the internal pressure of the pipe P3 (hydraulic pressure supply path) to which a hydraulic pressure of 2.5 Mpa is applied to about 4 times (about 4 to 5 times) 12.5 Mpa. It consists of a booster booster that can. For this reason, the hydraulic pressure boosted by the main pressure booster B1 is supplied to the driven piston / cylinder mechanism 2 via the downstream side pipe P5 (high pressure supply path) to drive it. One of the main boosters B1 is connected to and communicates with the driving second cylinder 13 (see FIG. 3), and the other is the upper chamber 21a (see FIG. 5) and the driven second cylinder 24 of the driven first cylinder 21. Is connected to and communicates with the lower chamber 24b (see FIG. 5).

<Configuration of sub booster>
As shown in FIG. 6, the sub booster B <b> 2 includes a sub driven piston / cylinder pushed out by the operation of a sub driven first piston 102 and a sub driven second piston 103 of a sub driven side piston / cylinder mechanism 10 to be described later. When hydraulic fluid in the mechanism 10 is supplied, the hydraulic pressure of the hydraulic fluid is increased (for example, doubled to 5 Mpa), and the secondary drive second cylinder of the secondary drive side piston / cylinder mechanism 9 (see FIG. 9). 93 is a device that supplies the product. One of the sub boosters B2 is connected to the upper chamber 101a of the sub driven first cylinder 101 and the lower chamber 104b of the sub driven second cylinder 104 of the sub driven piston / cylinder mechanism 10 shown in FIG. The other side is connected to and communicates with the secondary drive second cylinder 93.

<Configuration of first pressure booster>
As shown in FIG. 2, the first pressure booster B <b> 3 increases the hydraulic pressure of the hydraulic oil pushed out by the second supply piston 52 from the second supply upper cylinder 51 (see FIG. 6) of the second supply device 5 ( For example, it is a device that supplies the first supply upper cylinder 41 by double 5 MPa. In the first pressure booster B3, for example, two pressure boosters B are connected in parallel to increase the flow rate. One of the first pressure boosters B3 is connected to the upper chamber 51a of the second supply upper cylinder 51 (see FIG. 6), and the other is connected to the upper chamber 41a of the first supply upper cylinder 41 (see FIG. 4). Connected and communicating.

<Configuration of second pressure booster>
The second pressure booster B4 increases the hydraulic pressure of the hydraulic oil pushed out by the second working piston 72 from the second working upper cylinder 71 (see FIG. 8) of the second working piston / cylinder mechanism 7 (for example, doubled). 5 Mpa), and is supplied into the sub driven first cylinder 101 (see FIG. 6) and the sub driven second cylinder 104 of the sub driven side piston / cylinder mechanism 10. In the second pressure booster B4, for example, two pressure boosters B are connected in parallel to increase the flow rate of the hydraulic oil. One of the second pressure boosters B4 is connected to and communicates with the lower chamber 71b of the second operating upper cylinder 71 (see FIG. 8), and the other is under the sub driven first cylinder 101 (see FIG. 6). The chamber 101b is connected to and communicates with the upper chamber 104a of the sub driven second cylinder 104.

<Configuration of third pressure booster>
As shown in FIG. 2, the third pressure booster B <b> 5 increases the hydraulic pressure of the hydraulic oil pushed out by the first supply piston 42 from the first supply upper cylinder 41 (see FIG. 4) of the first supply device 4 ( For example, it is a device that supplies the inside of the first operating upper cylinder 61 of the first operating piston / cylinder mechanism 6 (see FIG. 7) at a rate of 5 Mpa. One of the third pressure boosters B5 is connected to and communicates with the lower chamber 41b of the first supply upper cylinder 41 (see FIG. 4) via the pressure reducing valve R1, and the other is the first operating upper cylinder 61 ( It is connected to and communicates with the lower chamber 61b (see FIG. 7).

<Configuration of Fourth Pressure Booster>
The fourth pressure booster B6 includes a first working outer piston 64 and a first working lower inner piston from the first working lower outer cylinder 63 (see FIG. 7) and the first working inner cylinder 65 of the first working piston / cylinder mechanism 6. This is a device for increasing the hydraulic pressure of the hydraulic oil pushed out by 62e (for example, double 5 Mpa) and supplying it into the first supply middle cylinder 43 (see FIG. 4) of the first supply device 4. One of the fourth pressure increasing devices B6 is connected to and communicates with the upper chamber 63a of the first operating lower outer cylinder 63 (see FIG. 7) and the lower chamber 65b of the first operating inner cylinder 65, and the other is connected to the first operating lower cylinder 63 (see FIG. 7). 1 Connected to and communicates with the upper chamber 43a of the supply middle cylinder 43 (see FIG. 4).

<Configuration of Fifth Pressure Booster>
As shown in FIG. 2, the fifth pressure booster B7 boosts the hydraulic pressure of the hydraulic oil pushed out by the first supply middle piston 42d from the first supply middle cylinder 43 (see FIG. 4) of the first supply device 4. This is a device that supplies the gas into the second supply middle cylinder 53 (see FIG. 6) of the second supply device 5 (for example, twice 5 Mpa). One of the fifth pressure boosters B7 is connected to and communicates with the lower chamber 43b of the first supply middle cylinder 43 (see FIG. 4), and the other is above the second supply middle cylinder 53 (see FIG. 6). It is connected to and communicates with the chamber 53a.

≪Configuration of driven piston / cylinder mechanism≫
As shown in FIG. 4, the driven-side piston / cylinder mechanism 2 drives the first drive unit 31 and the second drive unit 32 of the drive device 3 using the hydraulic pressure increased by the main pressure increase device B1. This is a piston / cylinder mechanism. As shown in FIG. 5, the driven-side piston / cylinder mechanism 2 includes a driven first cylinder 21, a driven first piston 22 having a driven internal tooth rack 22c, a driven external tooth rack 23a, and a driven drive rack 23e. A driven second piston 23, a driven second cylinder 24, a driven pinion 25, and a suspension member 26 are provided.

<Configuration of driven first cylinder (driven cylinder)>
The driven first cylinder 21 is a hydraulic cylinder case that is annular in a cross-sectional view in which the driven first piston 22 is provided so as to be movable up and down, and is mounted on the base F1. The driven first cylinder 21 is divided into an upper chamber 21 a and a lower chamber 21 b by a driven first piston 22. The upper chamber 21a communicates with the drive second cylinder 13 through the main pressure booster B1 by the pipes P3 and P5. The lower chamber 21b communicates with the first pressure switching valve V1 and the lower chamber 41b of the first supply upper cylinder 41 of the first supply device 4 via pipes P6 and P7 (hydraulic pressure release path).

<Configuration of driven first piston (driven piston)>
As shown in FIG. 4, the driven first piston 22 is pressurized by the main pressure booster B1 (see FIG. 2) and supplied with hydraulic pressure of hydraulic oil supplied via the pipe P5, and the second supply device 5 (see FIG. 4). 6) and a hydraulic pressure of the hydraulic oil pushed out by the second supply piston 52 in the second supply upper cylinder 51.
The driven first piston 22 shown in FIG. 5 is installed in the annular driven first cylinder 21 so as to be vertically movable in a plan view provided on the outer periphery of the driven second cylinder 24, and is generally cylindrical. Is formed. The driven first piston 22 has an annular piston portion 22d and a lower end connected to the inner edge of the annular piston portion 22d, and an upper end passing through the upper surface of the driven first cylinder 21 and connected to the lower end portion of the driven internal tooth rack 22c. A connecting portion 22a formed on the upper side of the connecting portion 22a, a concave portion 22b (driven piston shaft) having a concave shape in a longitudinal sectional view, and a driven inner portion formed on the inner inner wall of the concave portion 22b. The tooth rack 22c is integrally formed.

<Configuration of driven internal tooth rack>
As shown in FIG. 5, the driven internal tooth rack 22c is a linear gear that is integrally formed with the upper end of the driven first piston 22 and integrally moves up and down, and is a pair of gears formed on the inner wall of the concave portion 22b. Consists of. The driven internal tooth rack 22c moves up and down while meshing with a pair of driven pinions 25 and 25 arranged inside the concave portion 22b, thereby guiding the movement of the entire driven first piston 22 in the vertical direction. Stabilized.

<Configuration of driven second piston (driven piston)>
The driven second piston 23 is pressurized by the main pressure booster B1 (see FIGS. 3 and 4) and supplied from the main pressure booster B1 via the pipe P5 (high pressure supply path) and the second supply. The first drive unit of the drive device 3 is operated by the hydraulic pressure pushed out by the second supply piston 52 in the second supply upper cylinder 51 of the device 5 (see FIG. 6) and supplied through the pipes P6 and P7. 31 is a piston that drives the first drive unit 32 and the second drive unit 32.
As shown in FIG. 5, the driven second piston 23 is disposed between the inner peripheral wall of the driven second cylinder 24 and the outer peripheral wall of the driven first cylinder 21 so as to advance and retract, and extends in the vertical direction. It consists of a substantially cylindrical member. The driven second piston 23 includes a driven external tooth rack 23a formed on the left and right of the upper end, a rod-shaped upper piston shaft 23b continuously provided below the driven external tooth rack 23a, and a lower end of the upper piston shaft 23b. A disk-shaped driven second piston portion 23c provided continuously, a lower piston shaft 23d (driven piston shaft) connected below the driven second piston portion 23c, and a lower piston shaft 23d. The driven drive rack 23e is integrally formed.

<Configuration of driven external rack>
The driven external tooth racks 23a, 23a are linear gears that are arranged between the pair of driven pinions 25, 25 so as to be movable up and down and mesh with the driven pinions 25, 25. When the driven second piston 23 moves up and down, The driven pinions 25 are assembled so as to rotate. The driven external tooth racks 23a, 23a are integrally formed on the left and right of the upper end portion of the driven second piston 23, and are driven pinions 25, which are pivotally supported by a pair of suspension members 26, 26 fixed to the fixed frame F2. It is arranged so that it can be moved up and down by meshing between both. For this reason, the driven external tooth racks 23a, 23a are guided so that the vertical movement of the driven second piston 23 becomes a stable movement.

The upper piston shaft 23b is arranged from the driven first cylinder 21 to the concave shape portion 22b, and is inserted into the driven first cylinder 21 and the concave shape portion 22b so as to freely move up and down.
When the hydraulic oil is supplied to the driven second cylinder 24 (driven cylinder), the driven second piston portion 23c moves up and down in the driven second cylinder 24 with its hydraulic pressure, and the driven drive rack 23e and the driven external teeth. The rack 23a is raised and lowered.
The lower piston shaft 23d is inserted into the bottom portion of the driven second cylinder 24 and the base F1 so as to be movable up and down, and extends from the driven second cylinder 24 to below the base F1.

<Configuration of driven rack>
The driven drive rack 23e moves up and down together when the driven second piston 23 moves up and down, and the first shaft gear 31b of the first drive unit 31 and the second shaft normal rotation gear of the second drive unit 32. This is a linear gear for rotationally driving 32b. The driven drive rack 23e includes a rack that meshes with the first shaft gear 31b (pinion) of the first drive unit 31, and a rack that meshes with the second shaft normal rotation gear 32b (pinion) of the second drive unit 32. Are integrally formed. The driven drive racks 23e, 23e are formed of a pair of racks formed on the left and right side surfaces of the piston shaft at the lower end of the driven second piston 23, and are between the first shaft gear 31b and the second shaft normal rotation gear 32b. Are interposed in a state of meshing with each other.

<Configuration of driven second cylinder>
The driven second cylinder 24 is a substantially cylindrical hydraulic cylinder case in which the driven second piston portion 23c of the driven second piston 23 is provided so as to be movable up and down. The driven second cylinder 24 is provided so as to be doubly arranged on the inner peripheral side of the driven first cylinder 21 and is formed in a cylindrical shape having the inner peripheral wall of the driven first cylinder 21 as the outer peripheral wall. The driven second cylinder 24 is supplied with the hydraulic pressure increased by the main pressure increasing device B1 (see FIG. 4) and the hydraulic pressure from the lower chamber 51b of the second supply upper cylinder 51 of the second supply device 5. The The driven second cylinder 24 is divided into an upper chamber 24 a and a lower chamber 24 b by a driven second piston 23. The lower chamber 21b of the driven first cylinder 21 and the upper chamber 24a of the driven second cylinder 24 are communicated with the top and bottom open tank T1 via the first pressure switching valve V1 by pipes P6 and P23 (hydraulic pressure release path). .

<Configuration of driven pinion and suspension support member>
The driven pinions 25, 25 are composed of a pair of pinion gears rotatably supported at the lower ends of a pair of suspension members 26, 26 suspended from a fixed frame F2 provided horizontally. The driven pinions 25, 25 are driven externally arranged in a state where they are meshed inside the pair of driven internal racks 22 c, 22 c arranged on the left and right outer sides of the driven pinions 25, 25 and the driven pinions 25, 25. The tooth racks 23a and 23a are arranged in mesh with each other. For this reason, the driven second piston 23 having the driven outer tooth racks 23a, 23a and the driven first piston 22 having the driven inner tooth racks 22c, 22c move in directions opposite to each other and are driven. With the power obtained by adding the power of the second piston 23 and the power of the driven first piston 22, the driven drive rack 23e is moved up and down to rotationally drive the first shaft gear 31b and the second shaft normal rotation gear 32b.
The suspension members 26 and 26 are bearing arms that are pivotally supported at predetermined positions of the driven pinions 25 and 25.

≪Configuration of first supply device (piston / cylinder mechanism) ≫
As shown in FIG. 2, the first supply device 4 is configured to store or supply hydraulic oil sent by the piston operation of the second supply device 5 and the first working piston / cylinder mechanism 6. It is a cylinder mechanism. As shown in FIG. 6, the first supply device 4 includes a first supply upper cylinder 41, a first supply piston 42, a first supply middle cylinder 43, and a first supply lower cylinder 44, which will be described later. Configured. The first supply device 4 has substantially the same configuration as the second supply device 5.
That is, the first supply device 4 is arranged in a large-diameter first supply upper cylinder 41, a medium-diameter first supply middle cylinder 43, and a small-diameter first supply lower cylinder 44, and is movable up and down in these cylinders. A large-diameter first supply upper piston 42a, a medium-diameter first supply middle piston 42d, a small-diameter first supply lower piston 42g, and a first supply drive rack 42j that moves up and down integrally with these pistons; Consists of.

<Configuration of first supply upper cylinder>
As shown in FIG. 4, the first supply upper cylinder 41 is a substantially cylindrical hydraulic cylinder case mounted on the upper surface of the fixed frame F2. In the first supply upper cylinder 41, a first supply upper piston 42a is inserted so as to be movable up and down, and the interior is divided into an upper chamber 41a and a lower chamber 41b by the first supply upper piston 42a. The upper chamber 41a is connected to the upper chamber 51a of the second supply upper cylinder 51 of the second supply device 5 (see FIG. 6) via the first pressure booster B3 (see FIG. 2) by pipes P9 and P8. Yes. The lower chamber 41b is connected to the lower chamber 61b of the first operating upper cylinder 61 of the first operating piston / cylinder mechanism 6 (see FIG. 7) via pipes P14 and P15 via the pressure reducing valve R1 and the third pressure increasing device B5. It is connected.

<Configuration of first supply piston>
The first supply piston 42 is continuously provided in a state where three pistons, which are formed with small diameters stepwise toward the lower side, are stacked in three stages, and a first supply drive rack 42j is formed at the lower end thereof to be integrated. It is a member that moves up and down. The first supply piston 42 includes a first supply upper piston 42a, an upper upper piston shaft 42b, an upper lower piston shaft 42c, a first supply middle piston 42d, a middle upper piston shaft 42e, and a middle lower piston, which will be described later. A side piston shaft 42f, a first supply lower piston 42g, a lower upper piston shaft 42h, a lower lower piston shaft 42i, and a first supply drive rack 42j are integrally formed.

The first supply upper piston 42a is formed in a disc shape and is provided in the first supply upper cylinder 41 so as to be movable up and down.
The upper upper piston shaft 42b is erected on the upper side of the first supply upper piston 42a, and is supported by a shaft hole formed in the upper surface portion of the first supply upper cylinder 41 so as to be movable up and down.
The upper lower piston shaft 42c is suspended below the first supply upper piston 42a and is pivotally supported by the shaft hole of the fixed frame F2 so as to be vertically movable. The upper lower piston shaft 42c and the upper upper piston shaft 42b are formed to have the same diameter.
The first supply middle piston 42d is formed in a disc shape and is inserted into the first supply middle cylinder 43 so as to be movable up and down. The first supply middle piston 42d has a middle upper piston shaft 42e standing on the upper surface thereof and connected to the lower side of the upper lower piston shaft 42c, and a middle lower piston shaft 42f suspended from the lower surface thereof.

The middle lower piston shaft 42f is formed with a diameter smaller than the diameter of the middle upper piston shaft 42e, and is supported by the shaft hole on the lower surface of the first supply middle cylinder 43 so as to be vertically movable.
The first supply lower piston 42g is formed in a disc shape and is provided in the first supply lower cylinder 44 so as to be movable up and down. The first supply lower piston 42g has a lower upper piston shaft 42h erected on the upper surface thereof, and a lower lower piston shaft 42i depending on the lower surface thereof.
The lower upper piston shaft 42 h is connected to the lower side of the middle lower piston shaft 42 f and is inserted into the shaft hole on the upper surface of the first supply lower cylinder 44 so as to be movable up and down.
The lower lower piston shaft 42i is inserted into the shaft hole on the lower surface of the first supply lower cylinder 44 and the shaft hole of the base F1 so as to be movable up and down, and the first supply drive rack 42j is continuously provided on the lower side thereof. Has been.
The first supply drive rack 42j is formed with a rack that meshes with the first shaft gear 31b of the first drive unit 31 and rotationally drives the first shaft 31a.

<Configuration of first supply middle cylinder>
As shown in FIG. 4, the first supply middle cylinder 43 is a cylindrical hydraulic cylinder case fixed to the lower surface of the fixed frame F2. In the first supply middle cylinder 43, a first supply middle piston 42d is inserted so as to freely move up and down, and the interior is divided into an upper chamber 43a and a lower chamber 43b by the first supply middle piston 42d. The upper chamber 43a includes a lower chamber 63b of the first operating lower outer cylinder 63 of the first operating piston / cylinder mechanism 6 (see FIG. 7) via pipes P16 and P17 and a second pressure booster B4, and a first chamber The working inner cylinder 65 is connected to the upper chamber 65a. The lower chamber 43b is connected to the lower chamber 53b of the second supply middle cylinder 53 of the second supply device 5 via pipes P18 and P11 with a fifth pressure booster B7 interposed.

<Configuration of first supply lower cylinder (piston / cylinder mechanism)>
As shown in FIG. 4, the first supply lower cylinder 44 is a cylindrical hydraulic cylinder case fixed between the lower surface of the first supply middle cylinder 43 and the surface of the base F1. A first supply lower piston 42g is inserted in the first supply lower cylinder 44 so as to be movable up and down, and is partitioned into an upper chamber 44a and a lower chamber 44b by the first supply lower piston 42g. As described above, the upper chamber 44a is connected to the first pressure switching valve V1 and the upper chamber 54a of the second supply lower cylinder 54 (see FIG. 6) of the second supply device 5 by the pipe P20. The lower chamber 44b communicates with the upper chamber 63a of the first operating lower outer cylinder 63 of the first operating piston / cylinder mechanism 6 (see FIG. 7) and the lower chamber 65b of the first operating inner cylinder 65 by the pipe P12. ing.

≪Configuration of second supply device≫
As shown in FIG. 2, the second supply device 5 stores the hydraulic oil sent by the operation of the driven piston / cylinder mechanism 2, the second operation piston / cylinder mechanism 7, and the first supply device 4. It is a piston / cylinder mechanism to supply. As shown in FIG. 6, the second supply device 5 includes a second supply upper cylinder 51, a second supply upper piston 52a, a second supply middle cylinder 53, a second supply middle piston 52d, 2 comprises a lower supply cylinder 54, a second supply lower piston 52g, and a second supply drive rack 52j.
The second supply device 5 includes a large-diameter second supply upper cylinder 51, a medium-diameter second supply middle cylinder 53, and a small-diameter second supply lower cylinder 54, and a large-diameter arranged in these cylinders so as to be movable up and down. A second supply upper piston 52a having a diameter, a second supply middle piston 52d having a medium diameter, a second supply lower piston 52g having a small diameter, and a second supply drive rack 52j that moves up and down integrally with the pistons. .

<Configuration of second supply upper cylinder>
As shown in FIG. 6, the second supply upper cylinder 51 is a cylindrical hydraulic cylinder case mounted on the upper surface of the fixed frame F2, and the second supply upper piston 52a is inserted so as to freely move up and down. The second supply upper cylinder 51 is divided into an upper chamber 51a and a lower chamber 51b by a second supply upper piston 52a. The upper chamber 51a is connected to the upper chamber 41a of the first supply upper cylinder 41 of the first supply device 4 (see FIG. 4) via the first pressure booster B3 by pipes P7 and P8. The lower chamber 51b communicates with the driven first cylinder 21 of the driven-side piston / cylinder mechanism 2 through pipes P7 and P6.

<Configuration of second supply piston>
The second supply piston 52 is a member that three pistons are connected in a vertically stacked state via piston rods in a three-tiered manner, and a second supply drive rack 52j is provided at the lower end of the piston to move up and down integrally. It is. The second supply piston 52 includes a large-diameter second supply upper piston 52a disposed in the upper portion, a medium-diameter upper upper piston shaft 52b, an upper-lower piston shaft 52c disposed in the middle portion, and a medium-diameter Second supply middle piston 52d, middle upper piston shaft 52e, middle lower piston shaft 52f, small-diameter second supply lower piston 52g disposed at the lower portion, lower upper piston shaft 52h, lower lower piston shaft 52i and the second supply drive rack 52j are integrally formed.

As shown in FIG. 6, the second supply upper piston 52 a is a disk-shaped piston portion provided in the second supply upper cylinder 51 so as to be movable up and down.
The upper upper piston shaft 52b is erected on the upper side of the second supply upper piston 52a, and is supported by a shaft hole formed in the upper surface portion of the second supply upper cylinder 51 so as to be movable up and down.
The upper lower piston shaft 52c is suspended below the second supply upper piston 52a and is pivotally supported by the shaft hole of the fixed frame F2 so as to be vertically movable. The upper lower piston shaft 52c and the upper upper piston shaft 52b are formed to have the same diameter.
The second supply middle piston 52d is inserted into the second supply middle cylinder 53 so as to freely move up and down, and a middle upper piston shaft 52e connected to the lower side of the upper lower piston shaft 52c is erected on the upper surface thereof. On the lower surface thereof, the middle lower piston shaft 52f is suspended.

The middle lower piston shaft 52f is formed with a diameter smaller than the diameter of the middle upper piston shaft 52e, and is supported by the shaft hole on the lower surface of the second supply middle cylinder 53 so as to be vertically movable.
The second supply lower piston 52g is installed in the second supply lower cylinder 54 so as to be movable up and down. A lower upper piston shaft 52h is erected on the upper surface, and a lower lower piston shaft 52i is provided on the lower surface. It is drooping.
The lower upper piston shaft 52 h is connected to the lower side of the middle lower piston shaft 52 f and is inserted into the shaft hole on the upper surface of the second supply lower cylinder 54 so as to be movable up and down.
The lower lower piston shaft 52i is inserted into the shaft hole on the lower surface of the second supply lower cylinder 54 and the shaft hole of the base F1 so as to be movable up and down, and the second supply drive rack 52j is continuously provided on the lower side thereof. ing.
The second supply drive rack 52j is arranged to mesh with the fourth shaft gear 34b (pinion) of the fourth drive unit 34, and the vertical movement of the second supply piston 52 is caused by the rotational force of the fourth shaft gear 34b. It is a linear gear that is converted into and transmitted. That is, the second supply drive rack 52j and the fourth shaft gear 34b constitute a rack and pinion mechanism that converts the vertical movement of the second supply piston 52 into the rotational force of the fourth shaft 34a and rotates it. Yes.

<Configuration of second supply middle cylinder>
As shown in FIG. 6, the second supply middle cylinder 53 is a cylindrical hydraulic cylinder case fixed to the lower surface of the fixed frame F2. The second supply middle cylinder 53 is partitioned into an upper chamber 53a and a lower chamber 53b by a second supply middle piston 52d provided therein. The upper chamber 53a is connected to the upper chamber 73a of the second operating lower outer cylinder 73 and the lower chamber 75b of the second operating inner cylinder 75 of the second operating piston / cylinder mechanism 7 (see FIG. 8) by the pipe P10. Yes. The lower chamber 53b is connected to the lower chamber 43b of the first supply middle cylinder 43 of the first supply device 4 via a pipe P11 via a fifth pressure booster B7 (see FIG. 4).

<Configuration of second supply lower cylinder>
As shown in FIG. 6, the second supply lower cylinder 54 is a cylindrical hydraulic cylinder case fixed between the lower surface of the second supply middle cylinder 53 and the surface of the base F1. A second supply lower piston 52g is inserted in the second supply lower cylinder 54 so as to freely move up and down, and the interior is partitioned into an upper chamber 54a and a lower chamber 54b by the second supply lower piston 52g. The upper chamber 54a is connected to the upper chamber 44a of the first supply lower cylinder 44 of the first supply device 4 (see FIG. 4) by a pipe P20. The lower chamber 54b is connected to the upper chamber 73a of the second operating lower outer cylinder 73 of the second operating piston / cylinder mechanism 7 (see FIG. 8) and the lower chamber 75b of the second operating inner cylinder 75 by the pipe P13. Yes.

<Configuration of Second Supply Drive Rack>
The second supply drive rack 52j moves up and down integrally with the second supply upper piston 52a, the second supply middle piston 52d, and the second supply lower piston 52g of the second supply device 5, and thereby the fourth drive unit 34. This is a linear gear for rotating the fourth shaft gear 34b (pinion) and the fourth shaft 34a mounted in the shaft hole of the fourth shaft gear 34b.

≪Configuration of first operating piston / cylinder mechanism (piston / cylinder mechanism) ≫
As shown in FIG. 7, the first working piston / cylinder mechanism 6 is pushed out from the first supply upper cylinder 41 of the first supply device 4 (see FIG. 4) by the first supply upper piston 42 a, and thereby the third pressure booster. The hydraulic pressure of the hydraulic oil increased in B5 and the hydraulic pressure of the hydraulic oil pushed out from the first supply middle cylinder 43 and the first supply lower cylinder 44 by the first supply middle piston 42d and the first supply lower piston 42g. This is a piston / cylinder mechanism that drives the intermediate gear 35 (see FIG. 10) through the gear mechanism of the second drive unit 32 and the third drive unit 33.
The first working piston / cylinder mechanism 6 includes a first working upper cylinder 61, a first working piston 62, a first working lower outer cylinder 63, a first working external piston 64, a first working inner cylinder 65, The first operation internal tooth rack 64c, the first operation pinion 66, and the suspension member 67 are mainly provided.

<Configuration of first working upper cylinder>
The first working upper cylinder 61 is a substantially cylindrical cylinder case that is mounted on the fixed frame F2 and in which the first working piston 62 is installed so as to be movable up and down. The cross sectional area S7 of the first working upper cylinder 61 is formed larger than the cross sectional area S8 of the first working inner cylinder 65. The inside of the first working upper cylinder 61 is divided into an upper chamber 61a and a lower chamber 61b by a first working upper piston 62a. In the upper chamber 61a, the atmosphere enters and exits through an opening (not shown). The lower chamber 61b is filled with hydraulic oil, and communicates with the lower chamber 41b of the first supply upper cylinder 41 via the third pressure booster B5 and the pressure reducing valve R1 by pipes P15 and P14 (see FIG. 2).

<Configuration of first working piston>
As shown in FIG. 7, the first working piston 62 includes a first working upper piston 62a that is actuated by the hydraulic pressure of the working oil supplied from the third pressure booster B5 (see FIG. 2), and the first feeding device 4 ( The first working lower inner piston that is operated by the hydraulic pressure of the hydraulic oil in the first feeding middle cylinder 43 and the first feeding lower cylinder 44 pushed out by the first feeding middle piston 42d and the first feeding lower piston 42g in FIG. 62e, and two pistons operating at the same time.

  The first working piston 62 is arranged in a state that can move up and down from the upper part of the fixed frame F2 to the lower part of the base F1, and has two piston parts (a first working upper piston 62a and a first working lower inner piston 62e). ) And two racks (a first operation external tooth rack 62d and a first operation rack 62h). The first working piston 62 includes a disk-shaped first working upper piston 62a, an upper upper piston shaft 62b provided on the upper side of the first working upper piston 62a, and a lower side of the first working upper piston 62a. The upper lower piston shaft 62c provided, the first operating external tooth racks 62d and 62d connected to the lower side of the upper lower piston shaft 62c, and the first operating inner cylinder 65 are arranged to be vertically movable. A first operating lower inner piston 62e, a lower upper piston shaft 62f integrally formed between the first operating lower inner piston 62e and the first operating outer racks 62d, 62d, and a first operating lower inner piston 62e. A lower lower piston shaft 62g connected to the lower side and first operating racks 62h and 62h formed on the lower left and right sides of the lower lower piston shaft 62g are arranged in order from the upper side to the lower side. It is integrally formed by.

  The first working upper piston 62a is a piston part that is raised by its hydraulic pressure to raise the entire first working piston 62 when hydraulic oil is supplied to the lower chamber 61b of the first working upper cylinder 61. When the first operating upper piston 62a moves up and down, the second shaft reversing gear 32d of the second driving portion 32 meshed with the first operating rack 62h, and the third shaft reversing gear 33d of the third driving portion 33, Rotates. The diameter d7 of the first operating upper piston 62a is formed larger than the diameter d8 of the first operating lower inner piston 62e.

The upper upper piston shaft 62b is a piston rod that is pivotally supported in a shaft hole formed in the upper surface of the first operating upper cylinder 61 so as to be movable up and down.
The upper lower piston shaft 62c is a piston rod that is pivotally supported by the fixed frame F2 on the lower surface of the first working upper cylinder 61 so as to be movable up and down.
The first operating external tooth racks 62d and 62d are linear gears interposed between the pair of first operating pinions 66 and 66, respectively, and the first operating external pistons are interposed via the first operating pinions 66 and 66. 64 is indirectly supported.
The first working lower inner piston 62e is pushed into the first working inner cylinder 65 from the lower chamber 44b of the first feeding lower cylinder 44 shown in FIG. 4 by the first feeding lower piston 42g and supplied from the pipe P12. While being driven up by the oil hydraulic pressure, the hydraulic oil is pushed down from the lower chamber 43b of the first supply middle cylinder 43 by the first supply middle piston 42d and lowered by the hydraulic pressure of the hydraulic oil supplied from the pipe P17.

As shown in FIG. 7, the lower upper piston shaft 62 f is a piston rod inserted so as to be movable up and down with respect to the lower surface of the concave shaped portion 64 b and the upper surface of the first working inner cylinder 65.
The lower lower piston shaft 62g is a piston rod that is inserted into the lower surface of the first working inner cylinder 65 and the base F1 so as to be movable up and down.
The first operating racks 62h and 62h are interposed between the second shaft reversing gear 32d of the second driving unit 32 and the third shaft reversing gear 33d of the third driving unit 33, and are connected to the two pinion gears. It is a linear gear assembled by meshing.

<Configuration of first operating lower outer cylinder>
The first operating lower outer cylinder 63 is a hydraulic cylinder case that is annular in a cross-sectional view in which the first operating external piston 64 is provided so as to be movable up and down, and is mounted on the base F1. The first operating lower outer cylinder 63 is divided into an upper chamber 63a and a lower chamber 63b in the first operating lower outer cylinder 63 by an annular piston portion 64d. The upper chamber 63a communicates with the lower chamber 44b of the first supply lower cylinder 44 of the first supply device 4 (see FIG. 4) via the pipe P12. The lower chamber 63b communicates with the fourth pressure booster B6 (see FIG. 2) and the second pressure switching valve V2 via the pipe P17.

<Configuration of first operating external piston>
As shown in FIG. 7, the first operating external piston 64 is pushed out by the first supply lower piston 42g in the first supply lower cylinder 44 of the first supply device 4 (see FIG. 4) and supplied from the pipe P12. The hydraulic oil is lowered by the hydraulic pressure of the hydraulic oil, and is pushed by the first supply middle piston 42d in the first supply middle cylinder 43 and is supplied by the hydraulic pressure of the hydraulic oil supplied through the pipes P18 and P11 and the fifth pressure booster B7. It comes to descend.
The first operating external piston 64 has a lower cylindrical piston shaft 62g in the first operating inner cylinder 65 that can move up and down inside the first operating external piston 64, and is formed in a substantially cylindrical shape as a whole. ing. The first operating external piston 64 has an annular annular piston portion 64d and a lower end connected to the inner edge of the annular piston portion 64d, and an upper end penetrating the upper surface of the first operating lower outer cylinder 63 to form a concave shaped portion 64b. A connecting portion 64a connected to the lower end portion, a concave shape portion 64b mounted on the upper side of the connecting portion 64a and having a concave shape when viewed in a longitudinal section, and a first working internal tooth rack formed on the inner wall of the concave shape portion 64b 64c is integrally formed.

<Configuration of first working internal tooth rack>
The first working internal tooth rack 64c is a linear gear that is integrally formed with the upper end portion of the first working external piston 64 and moves up and down integrally. . The first operating internal tooth rack 64c moves up and down while meshing with the pair of first operating pinions 66 and 66 disposed in the concave shaped portion 64b, so that the entire first operating external piston 64 moves vertically. To stabilize.

<Configuration of first working inner cylinder>
The first working inner cylinder 65 is a substantially cylindrical hydraulic cylinder case in which a first working lower inner piston 62e is installed so as to be movable up and down, and doubled on the axial center side of the first working lower outer cylinder 63. Adjacent as arranged. The inside of the first working inner cylinder 65 is divided into an upper chamber 65a and a lower chamber 65b by a first working lower inner piston 62e. The upper chamber 65a communicates with the fourth pressure booster B6 and the second pressure switching valve V2 through the pipe P17. The lower chamber 65b communicates with the lower chamber 44b of the first supply lower cylinder 44 and the first pressure switching valve V1 via the pipe P12.

<Configuration of the first operating pinion and the suspension support member>
The first operating pinions 66, 66 are composed of a pair of pinion gears rotatably supported at the lower ends of a pair of suspension members 67, 67 suspended from the horizontal fixed frame F2. The first operating pinions 66 and 66 mesh with each other between the first operating pinions 66 and 66 and the pair of first operating internal racks 64c and 64c disposed on the left and right outer sides of the first operating pinions 66 and 66. The first operating external tooth racks 62d and 62d arranged in the above-described state are respectively engaged with each other. Therefore, the first working piston 62 having the first working external tooth racks 62d and 62d and the first working external piston 64 having the first working internal tooth racks 64c and 64c are in opposite directions when driven. The first actuating rack 62h is moved up and down by the power obtained by adding the power of the first actuating piston 62 and the power of the first actuating external piston 64 while moving, so that the second axis reversing gear 32d and the third axis reversing The gear 33d is rotated.
The suspension member 67 is a bearing arm for pivotally supporting the first operating pinions 66 and 66, respectively.

≪Configuration of second operating piston / cylinder mechanism (piston / cylinder mechanism) ≫
The second working piston / cylinder mechanism 7 shown in FIG. 8 is composed of a device having substantially the same shape as the first working piston / cylinder mechanism 6 (see FIG. 7). The second operating piston / cylinder mechanism 7 is connected to the sub driven first piston 102 and the sub driven first cylinder 101 (see FIG. 6) and the sub driven second cylinder 104 via the second pressure booster B4 (see FIG. 2). The hydraulic pressure of the hydraulic oil pushed out by the secondary driven second piston 103, the second supply lower piston 52g and the second supply lower cylinder 54 from the second supply lower cylinder 54 and the second supply middle cylinder 53 of the second supply device 5 (see FIG. 6). The second shaft forward rotation gear of the second drive unit 32 is moved up and down using the hydraulic pressure of the hydraulic oil pushed out by the supply middle piston 52d and the second working piston 72 and the first working rack 72h. This is a piston / cylinder mechanism that rotationally drives 32b and the third shaft reversing gear 33d of the third drive unit 33.
The second working piston / cylinder mechanism 7 includes a second working upper cylinder 71, a second working piston 72, a second working lower outer cylinder 73, a second working external piston 74, a second working inner cylinder 75, The first operating pinion 76 and the suspension member 77 are mainly provided.

<Configuration of second working upper cylinder>
The second working upper cylinder 71 is a substantially cylindrical cylinder case in which the second working piston 72 is installed so as to be movable up and down, and is placed on the fixed frame F2. The cross sectional area S9 of the second working upper cylinder 71 is formed larger than the cross sectional area S10 of the second working inner cylinder 75. The inside of the second working upper cylinder 71 is divided into an upper chamber 71a and a lower chamber 71b by a second working upper piston 72a. In the upper chamber 71a, the atmosphere enters and exits from an opening (not shown). The lower chamber 71b is filled with hydraulic oil, and the lower chamber 101b and the sub driven second cylinder 104 of the sub driven first cylinder 101 (see FIG. 6) are connected by the pipe P16 via the second pressure booster B4 (see FIG. 2). It communicates with the upper chamber 104a.

<Configuration of second working piston>
As shown in FIG. 8, the second operating piston 72 is provided with the second pressure booster B4 from the secondary driven first cylinder 101 and the secondary driven second cylinder 104 of the secondary driven piston / cylinder mechanism 10 (see FIG. 6). A second actuating upper piston 72a that is actuated by the hydraulic pressure of the working oil fed through the second feeding middle piston 53d pushed by the second feeding middle piston 52d and the second feeding lower piston 52g of the second feeding device 5, and Two piston portions are formed, which are a second operating lower inner piston 72e that is operated by the hydraulic pressure of the hydraulic oil in the second supply lower cylinder 54.

  The second actuating piston 72 is arranged in a state in which it can move up and down from the upper side of the upper fixed frame F2 to the lower side of the lower base F1, and is formed in a substantially stepped columnar shape as a whole. The second working piston 72 includes a disk-like second working upper piston 72a, an upper upper piston shaft 72b connected to the upper side of the second working upper piston 72a, and a lower side of the second working upper piston 72a. The upper lower piston shaft 72c provided continuously, the second operating external tooth racks 72d, 72d connected below the upper lower piston shaft 72c, and the second operating inner cylinder 75 can be moved up and down. A second operating lower inner piston 72e, a lower upper piston shaft 72f integrally formed between the second operating lower inner piston 72e and the second operating outer tooth racks 72d, 62d, and a second operating lower inner piston. A lower lower piston shaft 72g connected to the lower side of 72e and first operating racks 72h and 72h formed on the left and right sides of the lower lower piston shaft 72g are integrally formed. To have.

  When the working oil is supplied to the lower chamber 71b of the second working upper cylinder 71, the second working upper piston 72a is raised by the hydraulic pressure to raise the entire second working piston 72, and the first working rack 72 The second shaft normal rotation gear 32b of the second drive unit 32 meshed with 72h and the third shaft normal rotation gear 33b of the third drive unit 33 rotate. A diameter d9 of the second operating upper piston 72a is formed larger than a diameter d10 of the second operating lower inner piston 72e.

The upper upper piston shaft 72b is a piston rod that is pivotally supported in a shaft hole formed in the upper surface of the second operating upper cylinder 71 so as to be movable up and down.
The upper lower piston shaft 72c is a piston rod that is pivotally supported by the fixed frame F2 on the lower surface of the second working upper cylinder 71 so as to be movable up and down.
The second operating external tooth racks 72d and 72d are linear gears interposed between the pair of first operating pinions 76 and 76, respectively, and the second operating external piston is interposed via the first operating pinions 76 and 76. 74 is indirectly supported.
The second operating lower inner piston 72e is moved from the upper chamber 53a of the second supply middle cylinder 53 (see FIG. 6) and the lower chamber 54b of the second supply lower cylinder 54 by the second supply middle piston 52d and the second supply lower piston 52g. The second working piston 72 is moved up and down by operating with the hydraulic pressure of the hydraulic oil pushed out and supplied into the second working inner cylinder 75.

As shown in FIG. 8, the lower upper piston shaft 72 f is a piston rod inserted so as to be movable up and down with respect to the lower surface of the concave shaped portion 74 b and the upper surface of the second working inner cylinder 75.
The lower lower piston shaft 72g is a piston rod inserted so as to be movable up and down with respect to the lower surface of the second working inner cylinder 75 and the base F1.
The first operation racks 72h and 72h (operation racks) are interposed between the second axis normal rotation gear 32b of the second drive unit 32 and the third axis normal rotation gear 33b of the third drive unit 33. In addition, it is a linear gear meshed with the two pinion gears.

<Configuration of second operating lower outer cylinder>
The second operating lower outer cylinder 73 is a substantially cylindrical hydraulic cylinder case in which the second operating external piston 74 is installed so as to be movable up and down, and is mounted on the base F1. The second operating lower outer cylinder 73 is divided into an upper chamber 73a and a lower chamber 73b in the second operating lower outer cylinder 73 by a second operating external piston 74. The upper chamber 73a communicates with the lower chamber 54b of the second supply lower cylinder 54 of the second supply device 5 (see FIG. 6) and the first pressure switching valve V1 via the pipe P13. The lower chamber 73b communicates with the upper chamber 53a of the second supply middle cylinder 53 of the second supply device 5 through the pipe P10.

<Configuration of second operating external piston>
As shown in FIG. 8, the second operating external piston 74 is pushed out by the second supply lower piston 52 g in the second supply lower cylinder 54 of the second supply device 5 (see FIG. 6), and the second operation lower outer cylinder. The hydraulic pressure of the hydraulic oil supplied into 73 and the hydraulic pressure of the hydraulic oil pushed out by the second supply middle piston 52d in the second supply middle cylinder 53 and supplied into the second lower working outer cylinder 73 are increased. And a descending piston.
The second working external piston 74 is formed in a generally cylindrical shape with a second working piston 72 provided inside the second working external piston 74 along the axis so as to be movable up and down. The second operating external piston 74 has an annular annular piston portion 74d and a lower end connected to the inner edge of the annular piston portion 74d, and an upper end penetrating the upper surface of the second operating lower outer cylinder 73 to form a concave shaped portion 74b. A connecting portion 74a connected to the lower end portion, a concave shape portion 74b mounted on the upper side of the connecting portion 74a and having a concave shape in a longitudinal sectional view, and a first operation formed on the inner inner wall of the concave shape portion 74b The internal tooth rack 74c is integrally formed.

<Configuration of first working internal tooth rack>
The first working internal tooth rack 74c is a linear gear that is integrally formed at the upper end of the second working external piston 74 and moves up and down integrally, and is composed of a pair of gears that are integrally formed on the left and right inner walls of the concave portion 74b. . The first operation internal tooth rack 74c moves up and down while meshing with the pair of first operation pinions 76 and 76 disposed in the concave portion 74b, so that the movement of the second operation external piston 74 as a whole moves up and down. To stabilize.

<Configuration of second working inner cylinder>
The second working inner cylinder 75 is a substantially cylindrical hydraulic cylinder case in which the second working lower inner piston 72e is installed so as to be movable up and down, and doubled on the axial center side in the second working lower outer cylinder 73. Adjacent as arranged. The inside of the second working inner cylinder 75 is divided into an upper chamber 75a and a lower chamber 75b by a second working lower inner piston 72e. The upper chamber 75a communicates with the upper chamber 53a of the second supply middle cylinder 53 of the second supply device 5 (see FIG. 6) by the pipe P10. The lower chamber 75b communicates with the lower chamber 54b of the second supply lower cylinder 54 (see FIG. 6) and the first pressure switching valve V1 (see FIG. 2) via the pipe P13.

<Configuration of the first operating pinion and the suspension support member>
The first actuating pinions 76 and 76 are composed of a pair of pinion gears rotatably supported at lower ends of a pair of suspension members 77 and 77 suspended from a horizontal fixed frame F2. The first operating pinions 76, 76 mesh with the pair of first operating internal racks 74 c, 74 c disposed on the left and right outer sides of the first operating pinions 76, 76 and the inside between the first operating pinions 76, 76. The second operating external tooth racks 72d, 72d arranged in the above-described state are arranged so as to mesh with each other. Therefore, the second working piston 72 having the second working external tooth racks 72d and 72d and the second working external piston 74 having the first working internal tooth racks 74c and 74c are in opposite directions when driven. The first actuating rack 72h is moved up and down by the power obtained by adding the power of the second actuating piston 72 and the power of the second actuating external piston 74 while moving, so that the second axis normal rotation gear 32b and the third axis The normal rotation gear 33b is rotationally driven.
The suspension member 77 is a bearing arm for pivotally supporting the first operating pinions 76 and 76 respectively.

≪Pressure device configuration≫
As shown in FIG. 3, the pressurizing device 8 is a piston / cylinder mechanism that converts the water pressure of the tap water supplied by the water pipe P <b> 1 into a hydraulic pressure to increase the pressure. The pressurizing device 8 is an integral unit of a pressurizing first cylinder 81 connected to a source pressure supply path P2 for supplying tap water, and a pressurizing first piston 82a and a pressurizing second piston 82d. The formed pressurizing piston 82, the pressurizing second cylinder 83 provided below the pressurizing first cylinder 81, and the piping connecting the pressurizing second cylinder 83 and the first pressure switching valve V1. P24.
The pressurizing device 8 is driven in a phase opposite to that of the driving piston 12 of the driving side piston / cylinder mechanism 1, and sends the pressure signal to the pipe P24 according to the pressurized state and the non-pressurized state in the pressurized second cylinder 83. The direction of the hydraulic fluid flowing through the hydraulic pressure release passages (P6, P13, P23) that are sent to the first pressure switching valve V1 through the top and bottom open tank T1 and stored in the top and bottom open tank T1 is This is a piston / cylinder mechanism for sending a hydraulic pressure signal (switching signal) that is alternately switched in the discharge direction.

The pressurized first cylinder 81 is partitioned by a disk-shaped pressurizing piston 82 into an upper chamber 81a through which tap water enters and exits and a lower chamber 81b through which air enters and exits from an opening (not shown).
The pressurizing piston 82 is formed by integrating the pressurizing first piston 82a, an upper piston shaft 82b continuously provided thereon, and a lower piston shaft 82c and pressurizing second piston 82d provided continuously below the pressurizing piston 82a. It is the formed piston member.
The pressurizing first piston 82a receives the water pressure and descends in the pressurizing first cylinder 81, thereby lowering the entire pressurizing piston 82.
The upper piston shaft 82b is a piston rod that is pivotally supported in a shaft hole formed on the upper surface of the pressurized first cylinder 81 so as to be movable up and down.
The lower piston shaft 82c is a piston rod that is supported in a shaft hole formed in the lower surface of the pressurizing first cylinder 81 so as to be movable up and down.
The pressurizing second piston 82d is a rod-shaped small-diameter piston that is connected to the lower side of the lower piston shaft 82c and is formed so as to move up and down in the pressurizing second cylinder 83.

≪Configuration of secondary drive side piston and cylinder mechanism≫
As shown in FIG. 9, the sub-drive-side piston / cylinder mechanism 9 is a device that is driven by the water pressure of tap water supplied from the hydraulic pressure supply source W and increases the water pressure. This is a piston / cylinder mechanism that is driven back and forth symmetrically with respect to the cylinder mechanism 1. That is, the secondary drive side piston / cylinder mechanism 9 is configured so that the initial start of the secondary drive piston 92 is in the opposite phase (opposite direction) with respect to the initial start of the drive first piston 12a of the drive side piston / cylinder mechanism 1. The cross-sectional area S5 of the sub-drive first cylinder 91 and the diameter d5 of the sub-drive first piston 92a are formed smaller than the cross-sectional area S1 of the drive first cylinder 11 and the diameter d1 of the drive first piston 12a. The sub-driving side piston / cylinder mechanism 9 is configured such that the hydraulic pressure increased by this device is connected to the upper chamber 101a of the sub driven first cylinder 101 of the sub driven side piston / cylinder mechanism 10 by the pipe P19 via the sub pressure increasing device B2. It is configured such that it is supplied to the lower chamber 104b of the driven second cylinder 104 or hydraulic oil is supplied. The sub-driving side piston / cylinder mechanism 9 is composed of a two-stage device in which a hydraulic type piston / cylinder mechanism is continuously provided on the upper side and a hydraulic type on the lower side.

  The sub-driving side piston / cylinder mechanism 9 includes a sub-driving first cylinder 91 to which water pressure is supplied from a hydraulic pressure supply source W, and a sub-driving first piston 92a installed in the sub-driving first cylinder 91 so as to advance and retreat. A sub-drive second piston 92b provided integrally with the sub-drive first piston 92a, and a sub-drive that generates hydraulic pressure higher than the hydraulic pressure of the hydraulic pressure supply source W in accordance with the operation of the sub-drive second piston 92b. And a second cylinder 93. The sub-drive-side piston / cylinder mechanism 9 can increase the internal pressure of the sub-drive first cylinder 91 to which a water pressure of about 0.3 Mpa is applied, for example, to a hydraulic pressure of 5 Mpa.

<Configuration of secondary drive first cylinder>
As shown in FIG. 9, the sub-drive first cylinder 91 includes a cylindrical hydraulic cylinder case, and the sub-drive first cylinder 91 includes an upper chamber 91 a to which tap water is supplied by the sub-drive piston 92, It is divided into a lower chamber 91b through which air enters and exits from an opening (not shown).

<Configuration of secondary drive piston>
The sub-drive piston 92 is a piston in which a sub-drive first piston 92a, a sub-drive second piston 92b, an upper piston shaft 92c, and a lower piston shaft 92d are integrally formed and move up and down integrally. The sub drive piston 92 is operated by the water pressure supplied from the hydraulic pressure supply source W into the upper chamber 91a and the hydraulic pressure fed from the pipe P19 into the sub drive second cylinder 93.

  The sub-driving first piston 92 a is a piston that operates the sub-driving piston 92 relative to the driving piston 12 of the driving-side piston / cylinder mechanism 1 when receiving the water pressure supplied from the hydraulic pressure supply source W. is there. The sub-drive first piston 92a has an upper piston shaft 92c erected on the upper surface and a lower piston shaft 92d suspended from the lower surface. The upper piston shaft 92c is pivotally supported in a through hole formed in the upper surface of the sub-drive first cylinder 91 so as to be able to advance and retreat, and guides the ascent and descent of the sub-drive first piston 92a. The lower piston shaft 92d is a rod-shaped portion that functions as a support shaft that supports the sub-driving first piston 92a and the sub-driving second piston 92b, and is formed in the lower surface of the sub-driving first cylinder 91. The sub-drive first piston 92a and the sub-drive second piston 92b are guided up and down by the through-hole so as to be able to advance and retreat.

  The sub-drive second piston 92b is a rod-like piston installed in the sub-drive second cylinder 93 so as to be movable up and down, and is a lower portion of the sub-drive second piston 92b. The sub-drive second piston 92b is formed with a diameter d6 smaller than the diameter d5 of the sub-drive first piston 92a. The sub-drive second piston 92b operates integrally with the sub-drive first piston 92a. When the sub-drive second piston 92b descends, the hydraulic oil in the sub-drive second cylinder 93 is increased and pushed toward the sub-pressure booster B2. When it rises, the hydraulic oil in the pipe P19 is sucked.

<Configuration of secondary drive second cylinder>
The sub-drive second cylinder 93 is a hydraulic cylinder case made of a cylindrical sealed container connected to the lower surface of the sub-drive first cylinder 91, and a pipe P19 is installed on the lower surface portion. The sub-drive second cylinder 93 increases the hydraulic pressure of the hydraulic oil from the tap water pressure (about 0.3 Mpa) as the sub-drive second piston 92b advances and retreats. ), Or the hydraulic pressure from the sub booster B2 is reduced and sucked. The secondary drive second cylinder 93 is formed with a cross-sectional area S6 smaller than the cross-sectional area S5 of the secondary drive first cylinder 91.

≪Configuration of secondary driven piston / cylinder mechanism (piston / cylinder mechanism) ≫
As shown in FIG. 6, the secondary driven piston / cylinder mechanism 10 is a piston / cylinder that is driven by the reciprocating motion of the secondary driving first piston 92 a and the secondary driving second piston 92 b of the secondary driving side piston / cylinder mechanism 9. Mechanism. The secondary driven piston / cylinder mechanism 10 uses the hydraulic pressure boosted by the sub-pressure booster B <b> 2 and the fourth shaft gear 34 b of the fourth drive unit 34 of the drive device 3 and the second shaft of the second drive unit 32. This is a piston / cylinder mechanism for driving the reversing gear 32d. The secondary driven piston / cylinder mechanism 10 includes a secondary driven first cylinder 101, a secondary driven first piston 102 having a secondary driven internal tooth rack 102c, a secondary driven external tooth rack 103a, and a secondary driven shaft having a lower piston shaft 103d. The second piston 103, the secondary driven second cylinder 104, the secondary driven pinion 105, and the suspension member 106 are provided.

<Configuration of secondary driven first cylinder>
The sub driven first cylinder 101 is a substantially cylindrical hydraulic cylinder case in which the sub driven first piston 102 is installed so as to be vertically movable, and is mounted on the base F1. The sub driven first cylinder 101 is divided into an upper chamber 101 a and a lower chamber 101 b by a sub driven first piston 102. The upper chamber 101a is connected to the secondary driving second cylinder 93 via the pressure reducing valve R2 and the sub booster B2 by pipings P19, P25, P26, and to the driving second cylinder 13 and the second via the pipings P21, P22. It is connected to the pressure switching valve V2. The lower chamber 101b communicates with the lower chamber 71b of the second operating upper cylinder 71 of the second operating piston / cylinder mechanism 7 and the second pressure switching valve V2 via the second pressure booster B4 via the pipe P16. Yes.

<Configuration of secondary driven first piston>
As shown in FIG. 6, the secondary driven first piston 102 includes the hydraulic pressure of the hydraulic oil supplied from the second pressure booster B <b> 4 via the pipe P <b> 16 and the secondary driving second piston in the secondary driving second cylinder 93. It is a piston that operates with the hydraulic pressure of the hydraulic oil pushed out by 92b.
The sub driven first piston 102 is formed inside the sub driven first piston 102 so that the sub driven second piston 103 in the sub driven second cylinder 104 can move up and down, and is formed in a substantially cylindrical shape as a whole. ing. The secondary driven first piston 102 has an annular annular piston portion 102d, a lower end connected to the inner edge of the annular piston portion 102d, and an upper end penetrating through the upper surface of the secondary driven first cylinder 101, so A connecting portion 102a connected to the lower end of the connecting portion; The tooth rack 102c is integrally formed.

<Configuration of secondary driven internal rack>
The secondary driven internal tooth rack 102c is a linear gear that is integrally formed with the upper end portion of the secondary driven first piston 102 and moves up and down integrally, and is integrally formed on the left and right of the inner wall of the concave portion 102b. The secondary driven internal tooth rack 102c moves up and down while meshing with a pair of secondary driven pinions 105 and 105 disposed inside the concave portion 102b, thereby moving the secondary driven first piston 102 up and down. Guided and stabilized.

<Configuration of secondary driven second piston>
As shown in FIG. 6, the sub driven second piston 103 includes the hydraulic pressure supplied from the sub pressure booster B <b> 2 via the pipes P <b> 25 and P <b> 26 and the second working upper cylinder 71 of the second working piston / cylinder mechanism 7. This is a piston that is operated by the hydraulic pressure that is pushed out by the second operating upper piston 72a, increased in pressure by the second pressure increasing device B4, and supplied from the pipe P16.
The secondary driven second piston 103 is arranged in the secondary driven second cylinder 104 so as to be vertically movable, and is formed of a substantially stepped columnar member extending in the vertical direction. The secondary driven second piston 103 includes a secondary driven external tooth rack 103a formed on the left and right side surfaces of the upper end, a rod-like upper piston shaft 103b continuously provided below the secondary driven external tooth rack 103a, and the upper piston. A disk-shaped secondary driven second piston portion 103c continuously provided at the lower end of the shaft 103b, a lower piston shaft 103d continuously provided below the secondary driven second piston portion 103c, and a lower side of the lower piston shaft 103d And an auxiliary driven drive rack 103e connected to each other.

<Configuration of secondary driven external rack>
The auxiliary driven external tooth racks 103a, 103a are linear gears that are arranged between the pair of auxiliary driven pinions 105, 105 so as to be vertically movable, and mesh with the auxiliary driven pinions 105, 105. The sub driven pinions 105 and 105 are assembled so as to rotate when they move up and down. The sub driven external tooth racks 103a and 103a are integrally formed at the upper end of the sub driven second piston 103 and are sub driven pinions 105 and 105 supported by a pair of suspension members 106 fixed to the fixed frame F2. It is meshed with both of them and is arranged to be movable up and down. Therefore, the auxiliary driven external tooth racks 103a and 103a guide the vertical movement of the secondary driven second piston 103 so that the vertical movement is stable.

The upper piston shaft 103b is inserted into the auxiliary driven first cylinder 101 and the recessed portion 102b so as to be movable up and down.
When the hydraulic oil is supplied to the secondary driven second cylinder 104, the secondary driven second piston portion 103c moves up and down in the secondary driven second cylinder 104 by the hydraulic pressure to raise and lower the secondary driven drive rack 103e. Let
The lower piston shaft 103d is inserted into the base F1 so as to be movable up and down.

<Configuration of secondary driven drive rack>
As shown in FIG. 6, the sub driven drive rack 103 e moves up and down together when the sub driven second piston 103 moves up and down, and the first shaft gear 31 b and the second drive unit 32 of the first drive unit 31. This is a linear gear for rotationally driving the second shaft reversing gear 32d. A rack that meshes with the first shaft gear 31b of the first drive unit 31 and a rack that meshes with the second shaft reversing gear 32d of the second drive unit 32 are integrally formed in the sub driven drive rack 103e. . The sub driven drive racks 103e and 103e are formed of a pair of racks respectively formed on the left and right side surfaces of the piston shaft at the lower end of the sub driven second piston 103. The second drive unit 32 is interposed between the second shaft reversing gear 32d and the second shaft reversing gear 32d.

<Configuration of secondary driven second cylinder>
The secondary driven second cylinder 104 is a substantially cylindrical hydraulic cylinder case in which the secondary driven second piston 103 is installed so as to be movable up and down, and an annular secondary driven on the axial center side in the secondary driven first cylinder 101. The first piston 102 is interposed so as to be doubled. The sub driven second cylinder 104 is divided into an upper chamber 104 a and a lower chamber 104 b by a sub driven second piston 103. The upper chamber 101a and the lower chamber 101b are filled with hydraulic oil supplied from the pipes P16, P26, P21, and P22.

<Structure of secondary follower pinion and suspension support member>
The sub driven pinions 105 and 105 include a pair of pinion gears rotatably supported at lower ends of a pair of suspension members 106 and 106 suspended from a fixed frame F2 provided horizontally. The sub driven pinions 105 and 105 are arranged in a state where they are meshed with each other between the sub driven pinions 105 and 105 and the pair of sub driven internal tooth racks 102 c and 102 c arranged on the left and right outer sides of the sub driven pinions 105 and 105. The auxiliary driven external tooth racks 103a and 103a are arranged in mesh with each other. For this reason, the secondary driven second piston 103 having the secondary driven external tooth racks 103a and 103a and the secondary driven first piston 102 having the secondary driven internal tooth racks 102c and 102c move in directions opposite to each other when driven. At the same time, the sub driven drive rack 103e is moved up and down by the power obtained by adding the power of the sub driven second piston 103 and the power of the sub driven first piston 102, and the second shaft reversing gear 32d and the fourth shaft gear. 34b is driven to rotate.
The suspension support members 106 and 106 are bearing arms that rotatably support the sub driven pinions 105 and 105.

≪Configuration of pressure switching valve≫
The pressure switching valve V is a hydraulic pressure release path (P6) to the top and bottom open tank T1 through which hydraulic oil flows according to the pressure (pressurized state or non-pressurized state) applied to the pressure switch valve V from the pressurizing device 8. , P13, P23) are alternately switched in the flowing direction, and the drive system A1 is provided with a first pressure switching valve V1 and a second pressure switching valve V2.
The first pressure switching valve V <b> 1 includes a lower chamber 21 b of the driven first cylinder 21 of the driven piston / cylinder mechanism 2, an upper chamber 24 a of the driven second cylinder 24, and a second operating lower outer side of the second operating piston / cylinder mechanism 7. From the upper chamber 73a of the cylinder 73, the lower chamber 75b of the second working inner cylinder 75, the lower chamber 51b of the second supply upper cylinder 51 of the second supply device 5, and the lower chamber 54b of the second supply lower cylinder 54, the pipe P6 , P13, P16 (hydraulic pressure release path) is supplied with a static pressure (0.00 Mpa), the hydraulic oil is operated to flow from the pipe P23 to the top and bottom open tank T1.

  Further, the first pressure switching valve V1 is controlled by the pressurizing second piston 82d of the pressurizing device 8 driven in the opposite phase to the driving piston 12 of the driving side piston / cylinder mechanism 1 in the pressurizing second cylinder 83. When hydraulic pressure (5 Mpa) of pressurized hydraulic oil is supplied from the pipe P24, the upper chamber 44a of the first supply lower cylinder 44 of the first supply device 4 and the second chamber 5 of the second supply device 5 are supplied via the pipe P20. It switches so that hydraulic fluid may be supplied to the upper chamber 54a of the supply lower cylinder 54.

  In the second pressure switching valve V2, the hydraulic oil is pushed out from the upper chamber 51a of the second supply upper cylinder 51 of the second supply device 5 by the second supply upper piston 52a, and the hydraulic oil is supplied to the second pressure switching valve V2. When flowing, the upper chamber 53a of the second supply middle cylinder 53 of the second supply device 5 from the pipe P27 through the fourth pressure booster B6, the pipes P28 and P16 through the second pressure booster B4. Switching is performed so that 2.5 Mpa of hydraulic oil is supplied to the lower chamber 101 b of the sub driven first cylinder 101 and the upper chamber 104 a of the sub driven second cylinder 104 of the sub driven piston / cylinder mechanism 10.

≪Configuration of top and bottom open tank and storage tank≫
The top and bottom open tank T1 is a reservoir tank that is disposed at the highest position in the drive system A1 and temporarily stores hydraulic oil. A pipe P23 from which hydraulic oil is sent from the drive system A1 through the first pressure switching valve V1 and the second pressure switching valve V2 is connected to the inner bottom of the top and bottom open tank T1. The top and bottom open tank T1 is supplied to the top and bottom open tank T1 from the pipe P23 when hydraulic oil of stationary oil (0.00 Mpa) is supplied to the first pressure switching valve V1 and the second pressure switching valve V2. In addition, when the hydraulic pressure on the drive system A1 side decreases, the hydraulic oil in the top and bottom open tank T1 is automatically supplied to the first pressure switching valve V1 and the second pressure switching valve V2 side via the pipe P23 with potential energy. It comes to flow.
The storage tank T2 is a tank for storing hydraulic oil overflowing from the top and bottom open tank T1.

≪Composed in drive unit≫
As shown in FIG. 10, the drive device 3 is a device for rotationally driving the output gear 33g that is pivotally attached to the third shaft 33a, and meshes with the plurality of piston / cylinder mechanisms having a rack. A gear transmission mechanism including a pinion gear and an output gear 33g provided on the shaft of the gear transmission mechanism are configured. That is, the drive device 3 rotates the first shaft 31a to finally rotate the output gear 33g via the gear mechanism, and the second drive shaft 3a rotates the second shaft 32a to rotate the gear mechanism. A second drive unit 32 for finally rotating the output gear 33g via the third shaft 33a, a third drive unit 33 for rotating the output gear 33g via the gear mechanism by rotating the third shaft 33a, and a third shaft. A third drive unit 33 that rotates the output gear 33g via the gear mechanism by rotating 33a, and a fourth drive unit that rotates the output gear 33g via the gear mechanism by rotating the fourth shaft 34a. 34.

<Configuration of first driving unit>
The first drive unit 31 is a device for finally driving the output gear 33g through a gear mechanism by rotating the first shaft gear 31b mounted on the first shaft 31a. The first drive unit 31 includes a first supply device 4 provided with a first shaft 31a, a first supply drive rack 42j for rotating the first shaft gear 31b, and a first shaft gear 31b. A second operating piston / cylinder mechanism having a driven piston / cylinder mechanism 2 having a driven drive rack 23e and a first operating rack 72h for rotating the second shaft normal rotation gear 32b and the third shaft normal rotation gear 33b. The mechanism 7 includes a third shaft 33a on which a third shaft normal rotation gear 33b is attached, and an output gear 33g.

<Configuration of second driving unit>
The second drive unit 32 includes a second shaft normal rotation gear 32b having a second shaft normal rotation clutch 32c attached to the second shaft 32a or a second shaft reverse gear 32d having a second shaft reverse clutch 32e. By rotating, the output gear 33g is finally driven to rotate through the gear mechanism. The second drive unit 32 includes a second shaft 32a, a second shaft normal rotation gear 32b that is mounted on the second shaft 32a and has a second shaft normal rotation clutch 32c, and a second shaft 32a that is mounted on the second shaft 32a. The second shaft reversing gear 32d having the shaft reversing clutch 32e and the rotation of the second shaft 32a that is mounted on the second shaft 32a are transmitted to the third shaft transmission gear 33f of the third drive unit 33 via the intermediate gear 35. Therefore, the second-side transmission gear 32f, the driven-side piston / cylinder mechanism 2 having the driven drive rack 23e for rotating the second-axis normal rotation gear 32b, and the first operation for rotating the second-axis normal rotation gear 32b. A second actuating piston / cylinder mechanism 7 having a rack 72h, a sub driven piston / cylinder mechanism 10 having a sub driven drive rack 103e for rotating the second shaft reversing gear 32d, and a second shaft reversing gear 32d. First to rotate A first operating piston-cylinder mechanism 6 having a kinematic rack 62h, and a.

<Configuration of third drive unit>
As shown in FIG. 10, the third drive unit 33 includes a third shaft normal rotation gear 33b having a third shaft normal rotation clutch 33c attached to the third shaft 33a and a third shaft reverse rotation clutch 33e. By rotating the third shaft reversing gear 33d, the output gear 33g is finally driven to rotate through the gear mechanism. The third drive unit 33 is a third shaft 33a, a third shaft normal rotation gear 33b having a third shaft normal rotation clutch 33c, which is mounted on the third shaft 33a, and a third shaft 33a, which is mounted on the third shaft 33a. A third shaft reversing gear 33d having a shaft reversing clutch 33e, a third shaft transmission gear 33f mounted on the third shaft 33a, an output gear 33g mounted on the third shaft 33a, and a third shaft normal rotation The first working piston / cylinder mechanism 6 provided with the first working rack 72h for rotating the gear 33b and the first working piston / cylinder mechanism 6 provided with the first working rack 62h for rotating the third shaft reversing gear 33d. And is composed of.

<Configuration of the fourth drive unit>
The fourth drive unit 34 is a device for finally driving the output gear 33g through the gear mechanism by rotating the fourth shaft gear 34b that is pivotally attached to the fourth shaft 34a. The fourth drive unit 34 includes a second supply device 5 including a fourth shaft 34a, a second supply drive rack 52j for rotating the fourth shaft gear 34b, and a fourth shaft gear 34b. A secondary driven piston / cylinder mechanism 10 having a secondary driven drive rack 103e, a second shaft reversing gear 32d that rotates by the secondary driven drive rack 103e and rotates the second shaft 32a and the second shaft transmission gear 32f, and The intermediate gear 35 is rotated by the second shaft transmission gear 32f, and the third shaft transmission gear 33f, the third shaft 33a and the output gear 33g are rotated by the intermediate gear 35.

[Action]
Next, the operation of the pressure increase system A2 and the drive system A1 using the same will be described with reference to FIG. 2 mainly.

≪Initial start of drive system≫
First, when operating the pressure increasing system A2 and the drive system A1, the faucet V3 and the gate valve V4 are opened. Then, the tap water in the main pressure supply path P2 (0.3 Mpa indicated by bold broken lines in FIG. 2) flows from the water pipe P1 to the main pressure supply path P2 via the faucet V3 and the gate valve V4. The upper chamber 11a (see FIG. 3) of the driving first cylinder 11 of the driving side piston / cylinder mechanism 1, the upper chamber 81a (see FIG. 3) of the pressurizing first cylinder 81 of the pressurizing device 8, and the sub driving side Tap water is applied to the piston / cylinder mechanism 9 in the upper chamber 91a (see FIG. 9) of the sub-drive first cylinder 91.

At this time, the tap water flows in the left-right direction in the main pressure supply path P2, but does not flow out from the main pressure supply path P2. That is, in the pressure increasing system A2 and the drive system A1, the tap water of the hydraulic pressure supply source W is driven using only the water pressure, and the tap water is discharged to the outside from the main pressure supply path P2. No flow is consumed.
For this reason, the tap water in the main pressure supply path P2 has a constant overall flow rate, and when the tap water pressure is applied to the main pressure supply path P2, first, the cross-sectional areas S3 and S5 (FIGS. 3 and 9). The tap water in the pressurized first cylinder 81 and the sub-driven first cylinder 91 with a small reference flows into the driving first cylinder 11 having a larger cross-sectional area S1 than the area thereof, and drives the driving piston 12 (see FIG. 3). The drive-side first piston / cylinder mechanism 1 is driven down.
As the tap water in the pressurized first cylinder 81 flows out to the source pressure supply path P2, the pressurizing piston 82 of the pressurizing device 8 is raised. Further, in the sub drive side piston / cylinder mechanism 9, the sub drive piston 92 rises as tap water in the sub drive first cylinder 91 flows out to the source pressure supply path P <b> 2 side.

  As shown in FIG. 3, in the drive-side first piston / cylinder mechanism 1, the diameter d1 of the drive first piston 12a (piston) is larger than the diameter d2 of the lower piston shaft 12d. The hydraulic pressure sent to the main pressure booster B1 through the pressure is increased to 2.5 Mpa (the portion of the pipe P13 indicated by the thick solid line in FIG. 2). For this reason, the drive first piston 12a is pushed down with a force of about 1 ton.

  Further, the hydraulic pressure is increased to 12.5 Mpa (part of the pipe P5 shown by a thin solid line in FIG. 2) four times by the main pressure booster B1, and the upper chamber 21a of the driven first cylinder 21 shown in FIG. And, it is fed into the lower chamber 24b of the driven second cylinder 24, and the driven piston / cylinder mechanism 2 is driven by the hydraulic pressure greatly increased with respect to the water pressure.

  The hydraulic oil that has entered the upper chamber 21a of the driven first cylinder 21 lowers the entire driven first piston 22 by pushing down the annular piston portion 22d. The hydraulic oil that has entered the lower chamber 24b of the driven second cylinder 24 raises the entire driven second piston 23 by pushing up the driven second piston portion 23c. The hydraulic oil in the lower chamber 21b of the driven first cylinder 21 and the upper chamber 24a of the driven second cylinder 24 is pushed out by the annular piston portion 22d and the driven second piston portion 23c, and the pipe P6 and the first pressure switching valve V1. And it flows into the top and bottom open tank T1 through the pipe P23.

  The driven drive rack 23e integrated with the driven second piston 23 is interlocked with each other by driven pinions 25, 25 interposed between the driven second piston 23 and the driven first piston 22, so that the driven second The power of the piston 23 and the power of the driven first piston 22 are increased by a force of 10,800 Kgf (moving in the direction of arrow a), and the first shaft gear 31b of the first drive unit 31 is moved to the left (arrow b). And the second shaft normal rotation gear 32b (pinion gear) of the second drive unit 32 is rotated in the right (arrow c) direction.

As shown in FIG. 10, when the first shaft gear 31b rotates in the left (arrow b) direction, the first supply drive rack 42j of the first supply device 4 engaged therewith moves downward (arrow d). Move in the direction).
When the second shaft normal rotation gear 32b rotates in the right direction (arrow c), the second shaft 32a is stationary by the second shaft normal rotation clutch 32c and meshes with the second shaft normal rotation gear 32b. The first actuating rack 72h of the two actuating piston / cylinder mechanism 7 is lowered (moved in the direction of arrow m) with a force of 16,800 Kgf. As the first operating rack 72h is lowered, the third shaft normal rotation gear 33b of the third drive unit 33 meshing with the first operating rack 72h rotates in the left (arrow k) direction, and the third shaft 33a, the third shaft transmission gear 33f, and the output gear 33g are rotated in the same direction (arrow k) with a strong rotational force. Therefore, the drive system A1 can be used as a hydraulic engine by greatly increasing the small water pressure of the tap water and rotating the output gear 33g with a large rotational force.

  As shown in FIG. 4, when the first supply drive rack 42j is lowered, the entire first supply piston 42 of the first supply device 4 is lowered. The first supply upper piston 42a pushes out 2.5 Mpa of hydraulic oil in the lower chamber 41b of the first supply upper cylinder 41, and is doubled by the third pressure booster B5 via the pipes P14 and P15 and the pressure reducing valve R1. The hydraulic pressure increased to 5 Mpa is supplied to the lower chamber 61b of the first working upper cylinder 61 (see FIG. 7), and the first working piston 62 and the first working rack 62h of the first working piston / cylinder mechanism 6 are supplied. Drive upward (move in the direction of arrow i). As a result, the second shaft reversing gear 32d meshed with the first operating rack 62h also rotates the third shaft 33a with this power, and thus rotates with a large rotational force.

  Further, the first supply middle piston 42d pushes out 5 Mpa of hydraulic oil in the lower chamber 43b of the first supply middle cylinder 43, and doubles the hydraulic pressure of 10 Mpa at the fifth pressure booster B7 via the pipes P18 and P11. Is supplied to the lower chamber 53b of the second supply middle cylinder 53 shown in FIG. 6, and the second supply piston 52 and the second supply drive rack 52j of the second supply device 5 are driven to rise with a force of 1,202 Kgf (arrows). e). Accordingly, the fourth shaft gear 34b meshed with the second supply driving rack 52j rotates and drives the fourth shaft 34a and the sub driven driving rack 103e of the sub driven side piston / cylinder mechanism 10 by this power. .

  Further, the first supply lower piston 42g shown in FIG. 4 pushes out 5 Mpa of hydraulic oil in the lower chamber 44b of the first supply lower cylinder 44, and the upper chamber 63a of the first operation lower outer cylinder 63 via the pipe P12. The first working piston 62 and the first working rack 62h of the first working piston / cylinder mechanism 6 are driven to rise with a force of 13,500 Kgf (arrow i). Move in the direction). As a result, the second shaft reversing gear 32d meshed with the first operating rack 62h causes the third shaft 33a, the third shaft transmission gear 33f, the intermediate gear 35, the third shaft transmission gear 33f, The output gear 33g is driven to rotate with a strong rotational force via the three shafts 33a.

The second working piston 72 integrated with the first working rack 72h lowered (in the direction of the arrow m) by the rotation in the right (arrow c) direction of the second shaft normal rotation gear 32b shown in FIG. The piston 72a pushes out 2.5 Mpa of working oil in the lower chamber 71b of the second working upper cylinder 71. The pushed hydraulic oil is boosted to 5 Mpa, which is doubled by the second pressure booster B4 through the pipe P16, and the upper chamber 101a of the sub driven first cylinder 101 shown in FIG. The secondary cylinder 104 is supplied to the upper chamber 104a, and the secondary driven second piston 103 and the secondary driven first piston 102 are lowered. Since the secondary driven second piston 103 and the secondary driven first piston 102 are interlocked with each other by the secondary driven pinions 105 and 105 interposed therebetween, the power of the secondary driven second piston 103 and the power of the secondary driven first piston 102 are combined. The sub driven drive rack 103e is lowered (moved in the direction of the arrow g) with a force of 8,100 Kgf obtained by adding the above.
As a result, the fourth shaft gear 34b meshed with the auxiliary driven drive rack 103e rotates the fourth shaft gear 34b in the right direction (arrow f) by this power, and the second shaft reversing gear 32d. Driven in the left (arrow h) direction. For this reason, the output gear 33g is rotated by the power via the gear mechanism.

  The hydraulic oil in the lower chamber 101b of the sub driven first cylinder 101 and the lower chamber 104b of the sub driven second cylinder 104 is pushed out to the sub driven first piston 102 and the sub driven second piston 103 to be connected to the pipe P26. , P25, the sub-pressure booster B2 and the pipe P19, flow into the sub-driving second cylinder 93 of the sub-driving side piston / cylinder mechanism 9 (see FIG. 9) to raise the sub-driving piston 92 and perform sub-driving. The tap water in the first cylinder 91 is fed into the driving first cylinder 11 (see FIG. 3) via the source pressure supply path P2. For this reason, the sub drive piston 92 of the sub drive side piston / cylinder mechanism 9 is driven in a reverse direction with respect to the drive piston 12 of the drive side piston / cylinder mechanism 1 and moves symmetrically.

  The second supply piston 52 of the second supply device 5 shown in FIG. 6 raised by the downward drive of the first supply piston 42 of the first supply device 4 (in the direction of arrow e) is the second supply upper piston 52a of the second supply piston 52a. The hydraulic oil of 2.5 Mpa in the upper chamber 51a of the supply upper cylinder 51 is pushed out, and the pressure is increased to double 5 Mpa by the first pressure booster B3 through the pipe P8, and the first supply upper cylinder is supplied through the pipe P9. 41 (see FIG. 4) is sent to the upper chamber 41a, and the first supply drive rack 42j of the first supply piston 42 is lowered (moved in the direction of the arrow d) with a force of 5,400 Kgf. For this reason, the first supply device 4 is also driven by the hydraulic pressure from the second supply device 5.

  Further, the first working piston 62 of the first working piston / cylinder mechanism 6 shown in FIG. 7 that has been lifted (moved in the direction of arrow i) by the lowering drive of the first feeding piston 42 of the first feeding device 4 is The one operating external piston 64 pushes out 2.5 Mpa of hydraulic oil in the upper chamber 61a of the first operating lower outer cylinder 63, and the pressure is increased to 2 Mpa by the second pressure booster B4 through the pipe P17. It sends to the upper chamber 43a of the 1st supply middle cylinder 43 (refer FIG. 4) via P16, and the said 1st supply piston 42 is fall | descended (it moves to the arrow d direction). For this reason, the first supply device 4 is also driven by the hydraulic pressure from the second supply device 5.

  As described above, in the drive device 3 shown in FIG. 10, the water pressure is increased by the drive side piston / cylinder mechanism 1, and the driven side piston / cylinder mechanism 2 is further increased by the hydraulic pressure increased by the main pressure increase device B1. When driven, the drive device 3 includes the first supply device 4, the second working piston / cylinder mechanism 7, the driven piston / cylinder mechanism 2, the sub driven piston / cylinder mechanism 10, and the first working piston / cylinder mechanism 6. As a whole, the output gear 33g can be driven to rotate with great power in conjunction with each other.

≪Explanation when tap water flows into the pressurization first cylinder of the pressurizer and the subdrive first cylinder of the subdrive side piston / cylinder mechanism≫
As shown in FIG. 2, the drive system A1 includes a drive piston 12 of the drive side piston / cylinder mechanism 1 of the drive device 3, a driven first piston 22 and a driven second piston 23 of the driven side piston / cylinder mechanism 2, 1st supply piston 42 of 1 supply device 4, 2nd supply piston 52 of 2nd supply device 5, 1st operation piston 62 of 1st operation piston and cylinder mechanism 6, 2nd operation of 2nd operation piston and cylinder mechanism 7 To the lower limit position (bottom dead center) or the upper limit position (top dead center) where the piston 72, the secondary driven first piston 102 of the secondary driven piston / cylinder mechanism 10 and the secondary driven second piston 103 are completely lowered When it moves, the pressure piston 82 of the pressure device 8 is driven in an opposite phase to the driving piston 12 of the driving side piston / cylinder mechanism 1 in conjunction with this movement. Upper chamber 81a of the pressurizing 圧第 1 cylinder 81 is switched from the non-pressurized state into a pressurized state.

  When the water pressure in the upper chamber 81a of the pressurization first cylinder 81 changes from the non-pressurization state to the pressurization state, the pressurization device 8 moves down, and the pressurization device 82 operates in the pressurization second cylinder 83. Oil is sent to the first pressure switching valve V1 via the pipe P24 to switch the valve body of the first pressure switching valve V1. The hydraulic oil that has passed through the first pressure switching valve V1 flows into the upper chamber 44a of the first supply lower cylinder 44 of the first supply device 4 (see FIG. 4) via the pipe 20, and causes the first supply piston 42 to flow. While lowering, it flows into the upper chamber 54a of the 2nd supply lower cylinder 54 of the 2nd supply apparatus 5 (refer FIG. 6), the 2nd supply piston 52 is lowered | hung, the 1st supply apparatus 4 and the 2nd supply apparatus 5 Are reversed in phase.

Further, when the valve body of the first pressure switching valve V1 is switched, the hydraulic oil having potential energy in the top and bottom open tank T1 at the high place shown in FIG. 4 flows backward, and the first pressure switching from the pipe P23. It flows into the lower chamber 21b of the driven first cylinder 21 of the driven-side piston / cylinder mechanism 2 and the upper chamber 24a of the driven second cylinder 24 through the valve V1 and the pipes P6 and P13, and has the opposite phase.
Accordingly, the driven second piston 23 and the driven drive rack 23e are lowered (moved in the direction opposite to the arrow a), and the movement of the driving device 3 (see FIG. 10) is reversed, and the driven first cylinder is reversed. The hydraulic oil in the upper chamber 21a and the lower chamber 24b of the driven second cylinder 24 passes through the pipe P3, the main pressure booster B1, and the pipe P3, and the driving second cylinder 13 of the driving side piston / cylinder mechanism 1 is driven. The drive piston 12 is pushed up.

The tap water in the drive first cylinder 11 is pushed out by the drive piston 12, and the first pressure cylinder 81 of the pressurizer 8 and the sub-drive side piston / cylinder mechanism 9 are moved through the source pressure supply path P2. Into the upper chamber 91a of the secondary drive first cylinder 91, and the pressurizing piston 82 and the secondary drive piston 92 are lowered.
Further, by the operation of the first pressure switching valve V1, the hydraulic oil in the upper chamber 21a of the driven first cylinder 21 flows back into the driving second cylinder 13 through the main pressure booster B1 and the piping P3. The drive piston 12 of the drive side piston / cylinder mechanism 1 is pushed up.

  Furthermore, the upper chamber 73a of the second operating lower outer cylinder 73 (see FIG. 8), the upper chamber 75a of the second operating inner cylinder 75, and the second supply lower cylinder via the pipe P13 from the first pressure switching valve V1. 54 (see FIG. 6) flows into the lower chamber 54b, and causes the second operating piston / cylinder mechanism 7 and the second supply device 5 to be in reverse phase.

  As described above, when the first pressure switching valve V1 is switched, the pistons of the piston / cylinder mechanisms of the drive system A1 are in reverse phases, and the tap water and hydraulic oil in the pipes P flow backward. For this reason, the tap water flows only in the source pressure supply path P2, the driving first cylinder 11, the pressurizing first cylinder 81, and the sub driving first cylinder 91 and is not discharged to the outside, so only the water pressure is used. And the amount of water is never consumed. Further, the hydraulic oil can be used repeatedly because it only flows in the pipe P, the cylinder of each piston / cylinder mechanism, and the top and bottom open tank T1, and is not discarded to the outside.

  The sub-drive piston 92 shown in FIG. 9 descends, so that the sub-drive second piston 92b pushes out the hydraulic oil of the sub-drive second cylinder 93, and the pipe P19, the sub-pressure booster B2, and the pipes P25 and P26 are routed. Accordingly, the hydraulic oil flows back into the upper chamber 101a of the sub driven first cylinder 101 and the lower chamber 104b of the sub driven second cylinder 104 shown in FIG. Then, the secondary driven second piston 103 and the secondary driven drive rack 103e are raised (moved in the direction opposite to the arrow g) by the hydraulic pressure of the hydraulic oil.

10, the driven drive rack 23e of the driven piston / cylinder mechanism 2 descends (moves in the direction opposite to the arrow a), and the secondary driven piston / cylinder mechanism 10 is driven by the secondary driven. The drive rack 103e is raised and driven in the direction opposite to that at the time of initial start, whereby each gear mechanism rotates in the direction opposite to the arrow shown in FIG. 10, and the output gear 33g is also at the time of initial start. It is driven to rotate in the reverse direction. The driven piston / cylinder mechanism 2, the first supply device 4, the second working piston / cylinder mechanism 7, the driven piston / cylinder mechanism 2, the sub driven piston / cylinder mechanism 10, and the first working piston / cylinder mechanism 6. When the entire driving device 3 is operated in the direction opposite to that at the time of the initial start (reverse phase) and each piston is raised to the upper limit position or lowered to the lower limit position, the first pressure switching valve V1 and the first 2 The valve body of the pressure switching valve V2 is switched to the initial starting state.
As a result, unless the faucet V3 or the gate valve V4 is closed, the drive system A1 performs the above-described initial start drive using the tap water pressure as the original pressure and the drive in the phase opposite to the initial start drive. Continue to drive alternately.
Therefore, each drive part (31-34) of drive system A1 and drive device 3 can be used as a hydraulic engine. The hydraulic engine is optimal as a large engine used for ships and the like.

The present invention is not limited to the above-described embodiment, and various modifications and changes can be made within the scope of the technical idea. The present invention extends to these modifications and changes. Of course.
For example, the water pressure of the tap water and the hydraulic pressure of the hydraulic oil are not limited to this, and may be a gas such as air or other fluid pressure.

  Moreover, although the hydraulic pressure supply source W was the tap water of the water pipe P1, it is not limited to this, like the top and bottom open tank T1, a tank that is arranged at a high place and stores liquid, It may be a pump or the like for applying hydraulic pressure or air pressure to the original pressure supply path P2.

  In the driving device 3, each of the piston / cylinder mechanism having a rack for rotating the output gear 33g and the gear mechanism including a pinion gear for converting the linear movement of the rack into a rotational force is one. It doesn't matter.

DESCRIPTION OF SYMBOLS 1 Drive side piston * cylinder mechanism 2 Drive side piston * cylinder mechanism 3 Drive apparatus 4 1st supply apparatus (piston * cylinder mechanism)
5 Second supply device (piston / cylinder mechanism)
6 First operating piston / cylinder mechanism (piston / cylinder mechanism)
7 Second operating piston / cylinder mechanism (piston / cylinder mechanism)
8 Pressurizing device 9 Sub-driving side piston / cylinder mechanism 10 Sub-driven side piston / cylinder mechanism (piston / cylinder mechanism)
11 Drive 1st cylinder 12 Drive piston 12a Drive 1st piston (piston)
12b Driving second piston (piston)
13 Drive 2nd cylinder 21 1st driven cylinder (driven cylinder)
22 driven first piston (driven piston)
22b Concave part (driven piston shaft)
23 driven second piston 23d lower piston shaft (driven piston shaft)
23e Drive driven rack 24 Driven second cylinder (driven cylinder)
25 driven first piston shaft 31 first drive unit (drive unit)
31b 1st shaft gear (pinion)
32b Second axis forward rotation gear (pinion)
32c Second axis forward clutch (clutch)
32e Second shaft reversing clutch (clutch)
33c Third axis forward clutch (clutch)
33e Third shaft reversing clutch (clutch)
33g Output gear 42j First supply drive rack (rack)
72 Second working piston (working piston)
72h First operation rack (rack)
91 Sub-drive first cylinder 92 Sub-drive piston (piston)
A1 Drive system A2 Pressure increase system B Pressure increase device B1 Main pressure increase device (pressure increase device)
B2 Sub pressure booster (pressure booster)
d1 Diameter of the driving first piston d2 Diameter of the driving second piston P1 Water pipe P2 Main pressure supply path P3, P5 Piping (hydraulic pressure supply path)
P6, P13, P23 Piping (hydraulic pressure release path)
S1 Cross-sectional area of the driving first cylinder S2 Cross-sectional area of the driving second cylinder T1 Top and bottom open tank V1 First pressure switching valve (pressure switching valve)
V2 Second pressure switching valve (pressure switching valve)
W Hydraulic supply source

Claims (7)

A pressure increasing system for driving a driving device using a hydraulic pressure supplied from a hydraulic pressure supply source,
A drive-side piston / cylinder mechanism driven by the hydraulic pressure supplied from the hydraulic pressure supply source;
A driven-side piston / cylinder mechanism that is reciprocated via a hydraulic pressure supply path by a reciprocating movement of the driving piston of the driving-side piston / cylinder mechanism;
A pressure increasing device that is disposed in the fluid pressure supply path and further increases the fluid pressure increased by the driving piston / cylinder mechanism to drive the driven piston / cylinder mechanism;
A pressure-increasing system, wherein a driving pressure applied to the driven-side piston / cylinder mechanism is increased with respect to an original pressure of the hydraulic pressure supply source. The drive-side piston / cylinder mechanism includes a drive first cylinder to which hydraulic pressure is supplied from the hydraulic pressure supply source;
A drive first piston which is installed in the drive first cylinder so as to be able to advance and retreat and which is operated by a hydraulic pressure supplied from the hydraulic pressure supply source;
A drive second piston which is integrally provided with a diameter smaller than the diameter of the drive first piston and drives together;
As the driving second piston advances and retreats, the pressure of the liquid is increased and discharged to the pressure increasing device, or the liquid from the pressure increasing device is reduced and sucked, and the cross-sectional area of the driving first cylinder is determined. The pressure boosting system according to claim 1, further comprising a drive second cylinder having a small cross-sectional area. The hydraulic pressure source consists of tap water supplied from a water pipe,
The pressure-increasing system according to claim 1 or 2, wherein the driving first piston of the driving-side piston / cylinder mechanism is driven by a water pressure of the tap water. The driven piston / cylinder mechanism includes a driven cylinder to which the hydraulic pressure increased by the pressure increasing device is supplied;
A driven piston that is disposed in the driven cylinder and moves forward and backward with the hydraulic pressure increased by the pressure increasing device;
A driven piston shaft that is integrally formed with the driven piston and moves forward and backward together,
4. The driven piston shaft is disposed from the inside of the driven cylinder to the outside, and drives the drive unit of the drive device in conjunction with the advance and retreat of the driven piston shaft. The pressure increasing system as described in. A drive system using the pressure increasing system according to claim 4,
A top and bottom open tank communicated with the driven cylinder via a pressure switching valve and disposed at a higher position than the driven cylinder;
A pressurization device that is driven in a reverse phase with respect to the drive piston of the drive-side piston / cylinder mechanism by the hydraulic pressure supplied from the hydraulic pressure supply source,
The pressure switching valve alternately switches a hydraulic pressure release path to the top and bottom open tank according to a pressurization state and a non-pressurization state of the hydraulic pressure from the pressurization device, and switches the driven cylinder to the top and bottom open tank. A drive system characterized in that a liquid as a pressure medium sent and stored is caused to flow back from the top and bottom open tank back to the driven cylinder in the reverse phase. The drive-side piston / cylinder mechanism has a sub-drive first cylinder driven by the hydraulic pressure supplied from the hydraulic pressure supply source and formed with a cross-sectional area smaller than the cross-sectional area of the drive first cylinder. A sub-drive-side piston / cylinder mechanism that is driven back and forth symmetrically in opposite phase with respect to
A secondary driven piston / cylinder mechanism that is driven in accordance with the reciprocating motion of the piston of the secondary driving side piston / cylinder mechanism,
The hydraulic pressure increased by the secondary driving piston / cylinder mechanism is further increased in the hydraulic pressure supply path between the secondary driving piston / cylinder mechanism and the secondary driven piston / cylinder mechanism. 6. The drive system according to claim 5, further comprising a sub-pressure increasing device for driving the driven piston / cylinder mechanism. The driven piston shaft is formed with a driven drive rack that advances and retreats integrally with the driven piston shaft.
The drive device includes a pinion that meshes with the driven drive rack;
An operating piston integrally forming a rack meshing with the pinion, and at least one piston / cylinder mechanism interlocked with the driven-side piston / cylinder mechanism;
An output gear that rotates via a gear mechanism that is linked to the pinion or the working rack;
The drive system according to claim 5, further comprising: a clutch that transmits and disconnects a driving force from the driven piston / cylinder mechanism and the sub driven piston / cylinder mechanism to the output gear.

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