JPS5879603A - Fluid actuated moving wheel mechanism - Google Patents

Abstract

PURPOSE:To increase driving efficiency, in a moving wheel used for running a vehicle and the like, by feeding and discharging pressure fluid in two working chambers, between a lens shaped sectional rotor and rotor housing, through a fixed eccentric shaft and an internal passage of the rotor. CONSTITUTION:Pressurized fluid flows in a passage 39 of a rotor journal 33 from a passage 38 of an eccentric shaft 37 to reach a groove 34, and passages 31 in a rotor 14 are connected by rotary motion, then the fluid flows into a working chamber 16, while a rotor housing is rotated in such a manner as to expand its volume, thus fluid in a working chamber 17 is discharged. When the rotor motion reaches the next dead center, a relation between the fluid passages 31, 31' and grooves 34, 34' of the rotor journal is inverted, and pressure fluid, flowing into the working chamber 17, continues rotary motion. In this way, the necessity for a mechanical power transmission mechanism can be eliminated to decrease power loss and weight. Further a rotary speed can be easily controlled by adjustment of a feed amount, and action of a brake can be also easily performed.

Description

DETAILED DESCRIPTION OF THE INVENTION This patent relates to a driving wheel for driving a vehicle and a mechanism for driving the same. The driving wheels referred to in this patent rotate while touching the ground to make the vehicle run. Conventionally, the method of imparting rotation to these driving wheels was to apply rotational force from an internal combustion engine, electric motor, or other engine to gears or drive wheels. A method was used to transmit the information to the driving wheels using a transmission mechanism such as a shaft or chain.

However, when transmitting the rotational force from an internal combustion engine, electric motor, etc. through these transmission mechanisms, there is friction loss at various locations, resulting in large power losses, and the mechanisms are complex, which naturally results in high manufacturing costs.

The present invention provides a new driving wheel that can generate rotational force inside the driving wheel using a simple and novel mechanism using fluid, and eliminates the need for the conventional complicated power transmission mechanism. ! =! ! The purpose of the present invention is to provide a driving wheel that does not cause F, has extremely high energy efficiency, and is also extremely easy to adjust the traveling speed.

Furthermore, the present invention provides a new and superior system in which the driving wheel mechanism itself acts as an efficient braking device during braking, and the driving energy can be stored repeatedly and without waste during braking, and also eliminates the need for a differential gear mechanism. It provides a driving wheel mechanism.

As described above, the present invention provides a completely new driving wheel and driving wheel mechanism.The principle and structure thereof will be described below.The structure of the driving wheel consists of a fixed shaft and a working fluid surrounding it. The hub has a wheel mounted on the outside that can be rotated by the wheel, and the inside of this hub has a housing (hereinafter referred to as rotor) formed by a lochoid curve whose inner circumferential shape is a single section housing (hereinafter referred to as rotor) housing and PPJ:
), a rotor having a lens-shaped side cross section formed by the internal connection of the peritrochoid is housed in the rotor housing, the fixed shaft is an eccentric shaft, and the rotor has a rotor journal portion of the eccentric shaft. An internal gear is provided on the side wall of the rotor to support the rotor, and a fixed external gear is provided on the side wall of the rotor housing to form a phase gear with a tooth ratio of 2:1.Apex seals are installed at both ends of the rotor. The rotor housing is configured to be able to freely rotate around a fixed eccentric shaft while sliding in contact with an apex seal of the rotor.

Now, the driving principle of the driving wheel of the present invention is that the two wheels are formed between the cross-sectional or lens-shaped rotor and the rotor housing.
rotating the lenticular rotor on a rotor journal of the fixed eccentric shaft by alternately supplying and discharging pressurized working fluid to a working chamber of the chamber through a fluid passageway provided in the fixed eccentric shaft and the rotor; The rotation of the rotor causes the outer rotor housing to rotate with respect to the eccentric shaft at twice the speed of the rotor. Since the rotor housing, hub, and wheels are integrated, the wheels rotate and the vehicle can move.

The present invention provides a driving wheel mechanism based on the above principle and structure, but also includes the following mechanisms, and has a configuration that can fully demonstrate the characteristics of the driving wheel. The driving wheel of the invention pressurizes working fluid using a pump, piston, turbine, etc. connected to a main power source, and alternately supplies and discharges the pressurized working fluid to two working chambers within the driving wheel. The pressurized working fluid is once stored in a pressurized working fluid storage tank, and then fed to the driving wheels through a control valve installed at the inlet of the driving wheels. The amount can be adjusted and the rotational speed of the driving wheels can be easily changed.

In addition, in vehicles equipped with a pair of left and right driving wheels,
The working fluid to be supplied to the left and right driving wheels is communicated, and a control valve is provided at the inlet of each of the left and right driving wheels, so that the control valves can independently adjust and connect the fluid flow rate to the left and right wheels.

As a result, when the rotation of the inner driving wheels is restricted, such as when the vehicle changes direction, the left and right working fluids are in communication, so more of the working fluid flows to the outer driving wheels, making it possible to follow the rotation without difficulty. In addition, when one driving wheel slips, by adjusting the opening degree of the control valve at the inlet of that driving wheel, the amount of working fluid in the driving wheel on the side with a lighter load is restricted or refreshed, thereby preventing the driving wheel from idling. I can do it.

Furthermore, in the present invention, a throttle valve is provided at the working fluid outlet of the driving wheels, and the restricting valve is activated to limit the amount of working fluid discharged from the driving wheels, thereby suppressing the rotation of the driving wheels, thereby easily facilitating the vehicle operation. can perform braking. During this braking, the pressurized fluid control valve must also be restricted or refreshed at the same time and, if necessary, unpressurized working fluid must be supplied. In addition, during long-term braking such as when dismounting, the pressurized working fluid whose flow rate is restricted by the brake throttling valve is taken out from the outlet of the driving wheels and collected into the pressurized fluid storage tank. By doing so, traveling energy can be recovered.

The present invention is based on the principles and structure described above, and has many excellent features not found in conventional driving wheels, such as the following:0 (1) The driving wheel of the present invention is pressurized. It operates using a working fluid, and can run with an extremely simple mechanism consisting of a combination of piping and driving wheels for supplying and discharging the working fluid, and because there is no need for conventional complicated mechanical power transmission mechanisms, power loss is reduced. In addition, the vehicle can be made significantly lighter.

(2) The pressurized working fluid for driving the driving wheels of the present invention can be any fluid, including fluid pressurized by a pump, piston, turbine, etc. connected to the prime mover, as well as fluid stored in a cylinder or the like. Gases obtained by heating, steam obtained by heating, fluids expanded and pressurized by heating, etc. can be used, and the range of application is wide and it is extremely economical.

(3) In the driving wheel mechanism of the present invention, the rotation speed can be easily changed by adjusting the supply amount of pressurized working fluid, so the running speed of the vehicle can be smoothly increased or decreased steplessly. This makes it possible to omit the reduction gear, transmission mechanism, etc. that were conventionally required.

(4) In the driving wheel mechanism of the present invention, braking can be easily performed by restricting the throttle valve at the outlet of the driving wheel, so there is no need to provide a complicated braking mechanism unlike in conventional driving wheels.

(5) In addition, in the driving wheel mechanism of the present invention, the working fluid pressurized by the prime mover is stored in the storage tank, so that the operation of the prime mover is unrelated to changes in the running speed of the vehicle, and the sudden movement of the prime mover This makes it possible to avoid large increases and decelerations, and improve the efficiency of internal combustion engines that suffer from a large amount of fuel loss during increases and decelerations.

(6) Furthermore, during braking, the working fluid whose pressure has been increased by being restricted by the throttle valve at the outlet of the driving wheels is recovered into the pressurized working fluid storage tank, thereby making it possible to recover running energy that was previously wasted.

(7) Furthermore, according to the driving wheel mechanism of the present invention, by communicating the working fluid entering the left and right driving wheels when the vehicle changes direction, it is possible to automatically adjust the rotational speed difference between the left and right driving wheels, which is different from conventional driving wheels. The differential gear mechanism used can be omitted.

(8) Furthermore, in the driving wheel mechanism of the present invention, when the load on one of the driving wheels becomes lighter, the amount of working fluid can be adjusted independently for the left and right driving wheels. Eliminates the need for a non-slip mechanism.

Now, as described above, the driving wheel and driving wheel mechanism of the present invention are excellent, and preferred embodiments of the present invention will be further explained in detail with reference to the accompanying drawings.

First, Figure 1 is a front cross-sectional view of the driving wheel, and Figure 2 is a cross-sectional view of the driving wheel.
It is a side sectional view on x' plane. Referring to FIGS. 1 and 2, numeral 11 denotes a rotor housing which also serves as a hub for the driving wheels, and wheels, in this case tires, are attached to the outer periphery of the rotor housing for running while touching the ground. The inner contour 12 of the rotor housing is formed by a lochoidal curve in this section.

In general, a single-node peritrochoid curve is expressed by the following polar equation, where the eccentricity in the xNY coordinates is ElpeIJ) and the radius of lochoid creation is R.

X = I cos 2θ+R(ffi, θY = l
sin 2θ+R51nθ In the peritrophyte used in the present invention, the value of R/1 is determined in an appropriate range between 3 and 100. In this example, tiR/IC=5.

Note that in a normal rotor housing, a curve obtained by further enlarging the above-mentioned peritrochoid in the normal direction by a very slight equal dimension is used. This is to smooth the action of the apex seal of the rotor housed in the housing.

Forming the side wall of the 13Fi rotor housing shown in FIG.
Hereinafter, it will be referred to as a side housing.

14 in the figure is a rotor, and its outer circumferential shape 15 is formed by an inner connection of a single segment peritrophy, or a circle inscribed in this inner connection, or a circle with a larger curvature than the inscribed circle inside the inner connection. A notch 24 is provided on the outer circumferential surface of the zero rotor as shown in FIG. This depression facilitates movement of working fluid within the working chamber when the rotor reaches dead center. Apex seals 18 are attached to the two apexes of the rotor. In addition, a corner seal 19 is attached to the side surface of the top, and a groove is provided along the outer periphery of the side surface, and a side seal 20 is attached.
It is brought into close contact with the side housing 13 by the force of the spring housed in the groove, thereby preventing leakage of working fluid from the working chamber 16 to the shaft portion. In addition, a circular hole is provided in the center of the rotor for engagement with the rotor journal, and an oil seal 21 of the same type as a side seal is provided around the hole to prevent excessive lubricating oil from flowing into the working chamber. prevent. An internal gear 23 is provided on the side of the rotor, and a fixed external gear 22 is provided on the corresponding side housing. The meshing radius of the internal gear is twice the eccentricity of the peritrochoid, and its meshing center is aligned with the center of the rotor journal 33. The eccentric shaft 37 is fixed to the vehicle, and the eccentric shaft 37 is fixed to the opposite side housing. The housing (i.e. the hub of the driving wheel) passes through the center of the attached external toothed wheel, 22, by means of a bearing 44, so that the housing is connected to the eccentric shaft 36.
It is installed so that it can rotate freely around 370 degrees. Here, the center of the eccentric shaft 36, 37 is made to coincide with the center of the fixed external gear wheel, and the meshing radius of the fixed external gear wheel is made to coincide with the eccentricity amount. The rotor journal part 33 of the eccentric shaft of the rotor is connected to the circular hole in the center of the rotor, and is attached so that it can rotate freely on the rotor journal. The gears 22 are engaged with each other to form a phase gear, which is housed in the housing. As a result, the inside of the housing is divided into two by the rotor, each boundary is sealed by the rotor's apex seal, corner seal, and side seal, and two working chambers are formed whose volume changes with the rotation of the rotor. Ru. This is the working chamber 16 and 17 shown in Figure 1. When pressurized fluid is supplied to this working chamber, the rotor and housing rotate around the fixed eccentric shaft in a direction that expands the internal volume of the working chamber. Therefore, when the internal volume of the working chamber reaches its maximum, pressurized fluid is supplied to the other working chambers, and fluid is withdrawn from the working chamber that has been supplied with pressurized fluid. Can be rotated continuously.

Next, pressurized fluid (hereinafter referred to as working fluid)
To explain the method and mechanism for supplying and discharging the fluid, first, Fig. 3 shows the inside of the rotor journal shown in Fig. 2, and the working fluid passes through the fluid passage 38 in the fixed eccentric shaft and flows inside the rotor journal part. The fluid passage hole 2 on the rotor side must pass through the groove 34 provided on the surface of the rotor journal as shown in FIG.
7. From the rotor cavity 28, from the working chamber on the side that passes through the fluid passage hole 29 to the rotor swing working chamber, through a completely symmetrical fluid passage, from the rotor to the opposite side slot 34' on the outer periphery of the rotor journal. , through passages 40, 41 in the shaft.

In Fig. 4, instead of the groove 34 provided on the outer periphery of the rotor journal shown in Fig. 2, a groove is provided on the inner periphery of the rotor side as shown in Fig. 26, and the working fluid is doubled as shown in Fig. 3. This shows an embodiment in which the fluid is supplied from one shaft and discharged from the other, rather than through a conduit. Furthermore, in the example shown in Fig. 4, when water or other lubrication is lacking, a bearing is provided as in this example, and a separate lubricating oil supply path is provided inside the shaft for gears, bearings, and each seal. Consideration must be given to supplying lubricating oil to the

FIG. 5 is a sectional view of the rotor and rotor journal portion shown in FIGS. 2 and 3, and each part has the same number. The working fluid is supplied to the working chambers through passages 38 in the shaft, through passages 39 in the rotor journal, through grooves 34 on the outer circumference of the rotor journal, and through passages 27, 28, 29 in the rotor.

Discharge of the working fluid from the working chamber is accomplished by retracing a similar fluid path on the opposite side of the rotor. That is, fluid passages 29', 28', 27 in the rotor from the opposite working chamber.
', through a groove 34' on the outer periphery of the rotor journal, through a passage 40 in the rotor journal, and out of a fluid passage 41 in the shaft.

FIG. 6 is a cross-sectional view of another example of a fluid passage within a rotor and rotor journal. To explain this example according to the diagram, the fluid passage in the shaft is a parallel pipe, and the working fluid is fed from this pipe 38, and the fluid passage 39 in the rotor journal section is provided on the inner periphery of the rotor side. In this embodiment, there is no working fluid entering or exiting the rotor-turned cavity 28I11, but only to balance the rotor. This cavity can be used to circulate cooled oil through dedicated channels within the shaft and rotor journal to prevent overheating of the rotor.

As another example of the route for feeding the cooled oil, the oil passage 25 may be supplied from the inside of the shaft to the phase gear chamber 42 shown in FIG.
can be delivered to the cavity via the

In FIG. 6, the working fluid is discharged from the working chamber in the opposite direction of the feed path as in the example of FIG. ', via passages 40.41 in the rotor journal section.

- A space between the null portion [43 and the phase gear chamber 42 for the circulation of lubricating oil and is provided as necessary] Now, from the above explanation, the details of the structure of the driving wheel of the present invention will be explained. As has been made clear, the mode of operation of the driving wheel of the present invention will be further explained in detail with reference to FIG.

In FIG. 7, the numbers shown in each figure from (A) to tH1 are the same as those shown in FIGS. 1 to 5. Ta!
However, the fluid passage within the rotor is simplified and shown as 31. To explain sequentially from (A), in (A), the rotor 14 is at the dead center, and one of the working chambers 16 has a minimum volume, and the other working chamber 17 has a maximum volume. The pressurized working fluid passes from a passage 38 in the shaft to a passage 39 in the rotor journal portion, and reaches m34 provided on the outer periphery of the rotor journal 33. The fluid passages 31 in the rotor are connected with the grooves 34 mentioned above by the rotor/starting and counterclockwise rotation of the rotor so that the pressurized working fluid flows in the direction of the arrow in the figure and enters the crop chamber 16. It acts to spread out and increase its volume. Therefore, the rotor housing rotates, and the volume of the working chamber 16 increases as shown in (B), while the working fluid filling the working chamber 17 increases.
Since the volume of the working chamber 17 decreases, it is pushed out of the working chamber, passes through the passage 31' in the rotor, enters the groove 34' on the outer periphery of the rotor journal, and is discharged from the passage 41 in the shaft.

In Figure 7 (from Bl to (0)), the same operating mode continues.In addition, for the counterclockwise rotation of the rotor 7), the rotor is rotated by 2 minutes due to the action of the phase gear. It is rotating with an angular velocity of 1. As the pressurized working fluid is supplied, the rotation progresses from (01 to (I)l in Fig. 7), and when it reaches the position shown in Fig. 7, the volume of the working chamber 17 becomes the minimum.
The volume of the working chamber 16 becomes maximum and reaches the next dead center.

At this time, the relationship between the fluid passage 31.31' in the rotor and the groove 34.34' on the rotor journal is as shown in the figure (IC
+, thus reversing the direction of the fluid flowing through the fluid passage. That is, the working fluid l1i, which until now had flowed from the groove 34 on the outer circumference of the rotor journal through the fluid passage 31 to the working chamber 16 (as shown in the direction of the arrow 101, from the working chamber 16 through the fluid passage 31, Pressurized working fluid enters the groove 34' in the outer circumference of the journal and is discharged through the in-shaft passage 40.41, while entering the groove 34 in the outer circumference of the rotor journal from the in-shaft passage 38.39.
This time, the working chamber 17 is passed through the fluid passage 31' in the rotor.
flows into. Thus, the internal volume of the working chamber 16 decreases as the working fluid is discharged, while the internal volume of the working chamber 17 increases as the pressurized working fluid flows in, and the entire rotor housing continues to rotate counterclockwise. Become. F in Figure 7 below
,G.

The supply and discharge of H and the working fluid continues, rotation is performed, and the state of the driving wheel returns to A in FIG. 7, and the driving wheel continues to rotate repeatedly.

FIG. 8 shows an example of using this driving wheel as a driving wheel of an automobile. In the figure, 51 is the shaft, 52 is the rotor housing, 53 is the rotor, 54 is the rotor journal portion 55 is the phase gear, 56/fi bearing, 57Fi
Rim, 58Fi tire 59 has working fluid inlet, 60IIi
It is also an exit.

Now, the embodiments of the driving wheels of the present invention have been described in detail, but as a further feature of the present invention, the mechanical force for driving the driving wheels as described above (which is extremely excellent, and will be described in detail below) 9 is a yarn explaining the driving wheel mechanism of the present invention, 0 is the working chamber t, atj working chamber 2.

In the figure, 73 is a pump for pressurizing the working fluid, and 74 is a power source. 76 is a reservoir for pressurized working fluid, and 75 is a fluid reservoir at normal pressure or ≠low pressure.

Hereinafter, in detail along the flow of the working fluid, the working fluid in the storage tank 75 passes through the flow path 77 and is pressurized by the pump 73.
It passes through a flow path 79 and is stored in a storage tank 76 . 78.80
are each check valves. A line is provided from the outlet side of the pump 73 through which the working fluid circulates through the flow path si and the control valve 82 to the low-pressure storage tank.
It is possible to prevent the engine from reaching full IFfK and having to stop the prime mover. Further, the storage tank 76 is provided with an upper limit discharge valve 83, and when the amount of working fluid in one storage tank reaches the upper limit, the valve 83 is opened and the flow overflows to the low pressure storage tank via the flow path 84.
Prevent unexpected accidents. At this time, the valves 82 and 83 are operated in conjunction with each other, and the flow path 84 is directly connected to the storage tank 7 without passing through the valve 82.
You can let the 5th princess flow in.

88 and is supplied to the driving wheels (71) and (72).The supply amount is adjusted by a valve 86 to control the rotational speed of the driving wheels. mIm valve 89.9011 Normally, it is fully open. Force f1 When the load on one of the driving wheels becomes lighter and slipping occurs, the supply of working fluid to the idling driving wheel is restricted to prevent the idling.Working fluid is supplied to the driving wheels from shafts 91 and 92. The discharged working fluid is collected in the flow path 95, passes through the switching valve 96, passes through the brake valve 102, and is again circulated to the low storage tank 75. Rotates in proportion to the amount supplied.

The driving wheels are braked by limiting the opening degree of the brake valve 102.

The pressure of the working fluid increases as it is restricted by the brake valve 102, but when it becomes higher than the pressure in the pressurized fluid storage tank 76'', the check valve 100
is opened, and the high pressure working fluid flows through the flow path valve 86 and the valve operating pipe 103.
When the opening degree of the valve 102 is not limited or closed, the valve 86 is also not limited in its opening degree or is closed proportionally or even earlier. When the opening degree of the valve 86 is limited or closed, the pressure in the working fluid supply pipe 88 to the driving wheels decreases, but if it becomes lower than the pressure in the low-pressure working fluid storage tank 75. The working fluid in the storage tank 75 passes through the flow path 105 and is supplied to the driving wheels. Valve 104Fi check valve prevents backflow under normal conditions. The driving wheels (71) and (72) are usually arranged on the left and right sides of the vehicle, but the rotors of the driving wheels are installed with a phase shift of 90 degrees. For reversing the driving wheels, selector valve 87.9
6 is activated.

The upper left diagram shows a case where the switching is performed, in which working fluid is supplied to the driving wheels from the opposite direction and the driving wheels rotate in the opposite direction.

Although the details of the driving wheel mechanism of the present invention and its operating mode have been described above, the explanation is not limited to this explanation alone, and any working fluid can be used, and for example, when air is used, In this case, the low-pressure fluid storage tank 711 is not required, pressurized air is obtained directly from the atmosphere using the pump 73, and the air discharged from the driving wheels can be directly released into the atmosphere after passing through the brake valve 102. Regarding the pump 73,
General kFi reciprocating piston type, rotary piston type, turbine, diaphragm type, etc. are used. For power i1 air, roots, screw compressors, etc. can be used. Further, as the working fluid, steam generated by heating a fluid expanded and pressurized by heating, pressurized gas obtained by reaction, etc. can also be used. Note that when the working fluid is gaseous, the first discharge valve 83 must be operated at the upper limit of the internal pressure of the storage tank 76.

In the driving wheel mechanism of the present invention, any number of wheels can be driven and the drive mechanism has the same performance. However, when only one wheel is used, the valves 89 and 90 are not required. Although the present invention provides an excellent driving wheel, the driving wheel of the present invention is not necessarily used only for driving a vehicle. For example, gears, sprockets, and pulleys can be attached to the rotor housing, and power can be extracted from them using power transmission means such as gears, chains, and belts in the same way as a general prime mover, so it can be used as a normal prime mover in confined spaces or underwater. The driving wheel of the present invention has great utility value because it can obtain rotational force simply by piping the working fluid, in cases where it is difficult to install or transmit power using mechanical transmission methods. It is a thing〇

[Brief explanation of the drawing]

FIG. 1 is a front sectional view of the driving wheel of the present invention. FIG. 2 is a side sectional view along the x-r plane of FIG. FIG. 3 shows the rotor journal portion of FIG. 2 and fluid passages within the shaft. FIG. 4 also shows the rotor, rotor journal, and fluid passages within the shaft. FIG. 5 is a cross-sectional view of the fluid passages within the rotor and within the rotor journal. FIG. 6 is a cross-sectional view of the fluid passageway as in FIG. 5, but in a different implementation. FIG. 7 is an explanatory diagram of the mode of operation of the driving wheel of the present invention. FIG. 8 shows an example in which the driving wheel of the present invention is attached to a vehicle. 11,? Figure 11 Kiyume B Tsukiri tIh ring, Asamaki and Seki, showing shoulder cantering, 5 degrees in seven.

Claims (1)

[Scope of Claims] 1. A rotor formed by the inner envelope or arc of the peritrochoid is housed in a rotor 6.1 housing whose inner peripheral shape is formed by a single-node peritrophic curve, and a rotor formed by the inner envelope or circular arc of the peritrochoid is housed, and the rotor is placed at the center of the side surface of the rotor. A phase gear with a tooth ratio of 2:1 is formed by the internal toothed wheel attached to the side and the external toothed wheel attached to the center of the housing, and the rotor of the eccentric shaft is inserted into the circular hole provided in the center of the rotor. In a rotary piston mechanism having two working chambers with a structure in which journals are fitted, the eccentric shaft is fixed, and a fluid passageway passes through the shaft, the rotor journal section, and the rotor and leads to each working chamber. The rotor and the rotor housing are rotated by supplying working fluid from one of the fluid passages and discharging it from the other, and the fluid passages are automatically switched by rotation of the rotor. A fluid-operated wheel 02 houses a rotor whose inner circumferential shape is a single-bar peritrochoid curve, and has an internal gear mounted at the center of the side surface of the rotor and an external gear mounted at the center of the housing. A rotary piston mechanism has a two-chamber working chamber in which a phase gear with a tooth ratio of 2:1 is configured and a rotor journal portion of an eccentric shaft is fitted into a circular hole provided in the center of the rotor. A fluid passageway passing through the eccentric shaft, the rotor journal portion, and the rotor and communicating with each working chamber is provided, and the working fluid is supplied from one of the fluid passageways and discharged from the other, thereby discharging the rotor and rotor housing. The rotor is rotated and each of the fluid passages is configured to be automatically switched by the rotation of the rotor, and a flow rate regulating valve is provided on the working fluid supply side, and a brake valve is provided on the working fluid discharge side. A fluid-operated spindle mechanism. 3. The fluid-operated spindle mechanism according to item 2, wherein a pressurized fluid storage tank is provided at the working fluid inlet, and the working fluid is supplied to the pressurized fluid storage tank from upstream of the brake valve. 4. The fluid-operated spindle mechanism according to item 2, characterized in that a switching mechanism for supplying and discharging working fluid is provided. 2, characterized in that when 52 or more driving wheels are driven in parallel, a control valve is provided at the working fluid inlet of each driving wheel.
The fluid operated wheel as described.