JPS58152176A - Hydraulically actuating driving wheel mechanism - Google Patents

Abstract

PURPOSE:To enable to rotate a car wheel in order to run a vehicle by a method wherein pressurized fluid is charged successively into a plurality of working chambers formed between a rotor and a rotor housing and discharged therefrom in order to rotate the housing onto fixed eccentric shafts. CONSTITUTION:A rotor housing 11 serves for the hub of a driving wheel, on the outer periphery of which a car wheel or the like is mounted. The internal surface contour of the rotor housing 11 is formed by a peritrochoidal curve with two nodes. Seals 20-22 are installed at the apexes and sides of the rotor 14 so as to prevent working fluid from leaking from the working chambers 16-18 to a shaft part. An eccentric shaft 43 pierces the gear 25 of a side housing 13 at its center. When pressurized fluid is charged successively into the working chambers 16-18, the rotor 14 and the housing 11 are rotated around the fixed eccentric shafts 42 and 43, resulting in rotating the car wheel mounted to the housing 11.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a novel driving wheel and a mechanism for driving the same that can generate rotational force inside the driving wheel using a simple and novel mechanism using fluid. This is a further development of the invention that the present inventor has already filed as Patent No. 56-178513.

To briefly describe the principle and structure of the present invention, first, the structure of the driving wheel consists of a fixed eccentric single-nonk shaft and its surroundings that can be rotated by the action of working fluid, and wheels are attached to the outside of the shaft. The inside of this /X-bub is provided with a nozzle (hereinafter referred to as rotano-ging) whose inner circumferential shape is formed by a peritrochoid curve. PeIJ) A rotor formed by an arc approximating the internal envelope of the locoid or &ma is housed,
The rotor is supported by the rotor journal part of the eccentric shaft, an internal gear is provided on the side surface of the rotor, and a fixed external gear is provided on the rotor housing wall. mesh to form a phase gear,
Apex seals are provided at both ends of the rotor, and the rotor housing is attached via bearings to an eccentric shaft that is fixed while sliding in contact with the apex seals of the rotor so that it can rotate freely around the shaft. The structure is as follows.

Next, the principle of driving the driving wheels of the present invention is that, in the working chamber of ffff1 formed between the rotor and the rotor housing, via a fluid circumference provided in a fixed eccentric shaft and in the rotor, Pressurized working fluid is sequentially delivered and discharged to rotate the rotor on the rotor journal of the fixed eccentric shaft, and rotation of the rotor causes the rotor journal of the outer 1111 to rotate.
The housing is further rotated against the eccentric shaft G. Since the rotor housing and the hub are integrated, the wheel attached to the knob rotates and the vehicle can travel.

The present invention provides a driving wheel based on the above principle and structure, but also includes the following mechanism, and is configured to fully exhibit the characteristics of the driving wheel.

After this working fluid is temporarily stored in a pressurized working fluid storage tank, it is fed to the driving wheels through a control valve installed at the inlet of the driving wheels. It has a mechanism that can adjust the rotation speed of the driving wheels easily and change the rotation speed of the driving wheels.In addition, in vehicles equipped with a pair of left and right driving wheels, it has a mechanism that allows the working fluid to be supplied to the left and right driving wheels to communicate. In addition, a control valve is provided at the inlet of each of the left and right driving wheels, and the control valve is configured to independently adjust and shut off the fluid flow for each side, so that the rotation of the inner driving wheel is prevented, such as when a vehicle changes direction. When there is a restriction, the left and right working fluids are in communication, so more working fluid flows to the outer driving wheel, allowing it to follow the movement without difficulty.If one driving wheel slips, the control valve at the inlet of that driving wheel is adjusted. It is equipped with a mechanism that can limit or cut off the amount of working fluid for the driving wheels on the side where the load is lighter, thereby preventing the driving wheels from idling.

Furthermore, in the present invention, a throttle valve is provided at the working fluid outlet of the driving wheel, and the throttle valve is operated to limit the amount of working fluid discharged from the driving wheel, thereby suppressing the rotation of the driving wheel, that is, braking the vehicle. During this braking, the pressurized fluid control valve also operates simultaneously to limit or shut off the pressurized fluid.
If necessary, a mechanism is provided to supply unpressurized working fluid to the driving wheels, and especially during long-term braking such as when descending, pressurized working fluid is taken out from the outlet of the driving wheels. It is also equipped with a mechanism for recovering the pressurized fluid into the pressurized fluid storage tank, that is, recovering the traveling energy twice.

The present invention is based on the principle, structure, and configuration as described above.
Although it has many excellent features not seen in conventional driving wheels, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, Figure 1 is a front sectional view of a driving wheel using a two-bar peritrochoid rotary mechanism, and Figure 2 is a side sectional view of Figure 1.9 To explain Figures 1 and 2, 11 is a rotor housing. At the same time, it also serves as the hub for the driving wheels.
Wheels or the like are attached to the outer periphery as necessary. The inner surface profile 12 of the rotor housing is formed by a 2# peritrochoid curve. Reference numeral 13 in FIG. 2 forms a side wall of the rotor housing, which will hereinafter be referred to as a side housing. 14
is a rotor, and its outer peripheral shape 15 is formed by the inner envelope of the peritrochoid or an arcuate line that does not touch the housing inside the inner envelope. A recess 26 is provided on the outer peripheral surface of the rotor as necessary. This depression facilitates the movement of working fluid within the working chamber when the quadrupler reaches its dead center. An apex seal 20 is attached to each apex of the rotor, and a corner seal 21 is attached to the side of the top, and a groove is provided along the outer periphery of the rotor side, and a side seal 22 is attached. In close contact with the side housing 13, the working chambers 16 to 18
Prevents leakage of working fluid from the shaft to the shaft. A circular hole is provided in the center of the side surface of the rotor for engagement with the rotor journaler/lz, and an oil seal 23 of the same type as the side seal is provided around the hole to prevent excessive lubricating oil from flowing into the working chamber. prevent An internal gear 24 is provided on the side surface of the rotor, and a fixed external gear 25 is provided in the corresponding side housing. The eccentric shaft 43 has external teeth 25 attached to the side housing.
The eccentric shaft 42, 43 is inserted through the center of the eccentric shaft 42.
It is mounted so that it can rotate freely around the The rotor is an eccentric shaft rotor journal part 3
1 and the circular hole in the center of the rotor are engaged, and the rotor is mounted so that it can rotate freely on the rotor journal, and the internal gear 24 on the side surface of the rotor and the fixed external gear 25 of the side housing are engaged. , a phase gear is constructed and housed within the housing. As a result, the interior of the housing is divided by the rotor, each boundary is sealed by the rotor's apex seal, corner seal, and side seal, and a plurality of working chambers are formed whose volume changes with the rotation of the rotor. Working chamber 16.17 shown in FIG.
．． It is 18. 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, thereby increasing the internal volume of the working chamber. When this point is reached, pressurized fluid is supplied to other working chambers, and the fluid is extracted from the working chamber that has been supplying pressurized fluid until now, allowing the rotor and housing to rotate continuously. .

Next, we will explain the specific method and mechanism for supplying and discharging the pressurized working fluid. In Fig. 1, the working fluid passes through the fluid passage 35 in the fixed eccentric shaft, and the working fluid passes through the fluid passage 35 in the rotor journal section. The fluid is supplied from the passage 34, through the groove 31 provided on the surface of the rotor journal, and through the fluid passage hole 27 on the rotor side to the working chamber.

On the other hand, the fluid is discharged from the working chamber on the opposite side, through completely symmetrical fluid passages, from the rotor into the groove 31 on the opposite side of the rotor journal outer periphery, and into the passage 36 in the shaft.
It is done through. In FIG. 1, supply and discharge are automatically switched by rotation of the rotor and housing.

FIG. 3 shows an embodiment in which a groove is provided on the inner circumference of the rotor journal as shown in 33 in the figure, instead of the groove 31 provided on the outer circumference of the rotor journal shown in FIG. The mode of operation is the same as described above.

In Fig. 2, a bearing 28 is installed between the rotor and the rotor journal.If the working fluid is not oil-based and lacks lubricity such as gas or ice, it is recommended to install a bearing as in this example. is sealed so that the working fluid does not enter the bearing part, and a lubricating oil supply path is separately provided in the shaft and in the pilot journal part in parallel with the working fluid passage. Consideration must be given to supplying lubricating oil to the seals.

FIG. 4 shows an example in which the rotor housing is formed of a three-bar peritrochoid, and the amounts of each part are the same. There are four tatashi working chambers: 16, 17, 18, and 19.
The working principle is the same.

FIG. 5 shows an example in which grooves for fluid passages are provided on the inner periphery of the rotor in the example shown in FIG. 4, and the amount of grooves provided is the same as in FIG. 4.

In each embodiment, the part 32 is an important part that separates the groove on the supply side and the groove on the discharge side of the working fluid. It is necessary to provide the length and structure to prevent short circuits through the terminals. Further, 40 in each figure is a cavity for balancing the rotor.

In addition, in the embodiment of the present invention, a two-section peritrochoid, 3I2
Although only the i'i veritrochoids are shown, the present invention is not limited to this, and can also be carried out using exactly the same mechanism for multi-segmented petritrophytes, and includes this. .

Now, the embodiments of the driving wheels of the present invention have been described in detail, and furthermore, as a feature of the present invention, the mechanism for driving such driving wheels as described above is extremely excellent, and this will be explained below. .

FIG. 6 explains the mechanism for driving the driving wheels of the present invention. First, 61 and 62 in the figure are left and right driving wheels, 63 is a pump f for pressurizing the working fluid, 64 is a power source, 65 is a normal pressure or low pressure fluid storage tank, and 66 is a pressurized working fluid. It is a storage tank.

The following will explain the flow of the working fluid. The working fluid in the storage tank 65 passes through the flow path 67 and is pressurized by the pump 63.
The liquid flows through the flow path 69 and is temporarily stored in the storage tank 66. 68.70
is a check valve.

A line is provided in which the working fluid flows from the outlet side of the pump 63 through a circulation valve 71 and a flow path 72 to a low-pressure fluid storage tank, and when the driving wheels stop, the storage tank 66 becomes full and the prime mover has to be stopped. Temporarily prevent it from disappearing. Furthermore, storage tank 6
6 is provided with an upper limit discharge valve 73, and when the amount of working fluid in the storage tank reaches the upper limit, the valve 73 is opened and the working fluid overflows into the low pressure fluid storage tank through the flow path 74, thereby eliminating unexpected decimals. To prevent.

Now, the pressurized working fluid in the storage tank 66 passes through a flow path 75, passes through a regulating valve 76, enters a switching valve 77, is divided by a flow path 78, and is supplied to each driving wheel 61, 62. A supply amount valve 76 is used to control the rotational speed of the dynamic movement. Differential valve 79.8
0 is normally a fully open state, but when the load on the driving wheels becomes light and slip occurs, the supply of working fluid to the idling wheels is restricted to prevent the idling.

As already mentioned, the working fluid is supplied to the driving wheels through the flow path 81.
82 through the shaft portion of each driving wheel,
Ejected from 3.84.

The discharged working fluid is collected in the flow path 85 and the switching valve 86
The fluid passes through the brake valve 92 and is collected again into the low pressure fluid storage tank 65.

The driving wheels 61, 62 have the structure already described in detail and rotate in proportion to the amount of working fluid supplied.

Braking of the driving wheels is performed by limiting the opening degree of the brake valve 92. Valve 9
2, the pressure of the working fluid at the outlet of the driving wheels increases, but when the pressure becomes higher than the pressure in the pressurized fluid storage tank 66, the check valve 90 opens and the working fluid is collected into the storage tank 66 through the flow path 91.

In other words, energy is recovered. The brake valve 92 is linked to the control valve 76 and the valve actuation pipe 93, and when the opening degree of the valve 92 is limited or closed, the valve 76 also opens proportionally or even earlier. Opening degree is not limited or closed. However, this interlocking of both valves may be achieved by electrical means.

Adjustment r<6 When the opening degree of the valve 76 is not limited or closed, the pressure in the working fluid supply pipe 78 to the driving wheels decreases, but if it becomes lower than the pressure in the low pressure working fluid storage tank 65. At this time, the check valve 94 is opened and the working fluid in the storage tank 65 is supplied to the driving wheels through the flow path 95.

Driving wheels 61, 62 are arranged on the left and right sides of the vehicle, and the rotors of each driving wheel are mounted out of phase with each other, and reversal of the driving wheels is performed by operating switching valves 77, 86. The upper left of FIG. 6 shows the state of the flow path when the switching valve is operated, whereby the driving wheels are supplied with working fluid from the opposite direction, causing the driving wheels to 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 present invention is not necessarily limited to this explanation alone. The mechanism can be modified depending on the fluid to be used, so that pressurized air is obtained at 63 and the air discharged from the driving wheels can be directly released into the atmosphere after passing through the brake valve 92. Further, as the working fluid, fluid expanded and pressurized by heating, steam generated by heating, pressurized gas obtained by reaction, etc. can be used.

Although the present invention provides an excellent driving wheel that operates using fluid, the driving wheel of the present invention is not necessarily used only for driving a vehicle, and for example, a rotor housing with a gear is used. , install sprockets, pulleys, etc.
Power can be extracted from this using power transmission means such as gears, chains, belts, etc. in the same way as a general prime mover, so it is difficult to install a normal prime mover in a narrow space or underwater, and it is difficult to transmit power using mechanical methods. In such cases, the driving wheel of the present invention can obtain rotational force only by requiring piping for working fluid, and therefore its utility value is extremely large.

[Brief explanation of the drawing]

FIG. 1 is a front sectional view of the driving wheel of the present invention, which utilizes a two-bar peritrochoid rotary mechanism. FIG. 2 is a side cross-section of the driving wheel shown in FIG. 1. FIG. 3 uses the same 2# peritrochoidal rotor tally machine fTW as in the first In, but is an example in which grooves are provided on the inner circumferential surface of the rotor. FIG. 4 is a front sectional view of a driving wheel using a three-section peritrophic rotary mechanism. No. 51Δ is a sectional view of the rotor in which a vortex is provided on the rotor side in FIG. 4. FIG. 6 shows a mechanism for driving the driving wheels. Figure 1 Figure 2

Claims (1)

[Scope of Claims] 1) A rotor whose inner circumference is formed by a peritrochoid curve is housed in a rotor housing formed by the inner envelope of the peritrochoid, and a rotor housing whose inner circumference is formed by a peritrochoid curve is housed in a rotor housing, and a rotor whose inner circumference is formed by a peritrochoid inner envelope is housed in a rotor housing formed by a peritrochoid curve. The gear and the external gear attached to the center of the side housing constitute a phase gear, and the rotor journal portion of the eccentric shaft is fitted into a circular hole passing through the center of the rotor so as to be freely rotatable. In a rotary piston mechanism having a plurality of working chambers in which the shaft is supported by a rotor housing via a bearing, the eccentric shaft is fixed, and the shaft passes through the shaft, the rotor journal portion, and the rotor. A fluid passage for supplying and discharging working fluid to each working chamber is provided, and each fluid passage is structured to be automatically connected to each working chamber in sequence by rotation of the rotor, and the working fluid is supplied from one of the fluid passages. A fluid-operated wheel characterized by dynamically rotating a rotor and a rotor housing by feeding and discharging from the other side. 2. A rotor formed by the inner envelope of the peritrochoid is housed in a rotor housing whose inner peripheral shape is formed by a peritrochoid curve, and an internal gear mounted at the center of the side surface of the rotor and an internal gear mounted at the center of the side housing. The rotor journal portion of the eccentric shaft is freely rotatably engaged with a circular hole passing through the center of the rotor, and the shaft is connected to the rotor housing. fixing the eccentric shaft in a rotary piston mechanism having a number of working chambers supported through bearings;
A fluid passage is provided in the shaft, in the rotor's internal yarn, and in the rotor for supplying and discharging working fluid to each working chamber, and each fluid passage is automatically connected to each working chamber by rotation of the rotor. What is claimed is: 1. A fluid-operated wheel mechanism, characterized in that it has a structure in which the hydraulic fluid is connected in sequence, and is provided with a flow rate control valve on the supply side of the working fluid and a brake valve actuated on the discharge side. 3. The fluid operated gravity operated left wheel mechanism according to 2, characterized in that a pressurized fluid storage tank is provided on the working fluid supply side, and the working fluid is collected into the pressurized fluid storage tank from upstream of the brake valve. 4. A mechanism for switching the supply and discharge paths of the working fluid and supplying the low-temperature working fluid to the driving wheels 5 via a check valve downstream of the working fluid flow rate control valve 2. The fluid-operated nine-wheel mechanism described. When driving 62 or more driving wheels in parallel