JP2711402B2 - Transfer device with rotating blades - Google Patents

Description

The present invention relates to an apparatus for transporting a plurality of industrial materials by various forces such as direct centrifugal coasting force caused by rotating blades, or wind force sucking or discharging. Things.

(Prior Art) At present, there are many devices for transporting various objects directly by the rotational force of the blades or by the wind generated by the blades. Most of the suction and release forces from these devices are based on the rotational impact inertia of the blades,
Rotational friction is also proportional to the negative pressure created by the centrifugal flow inertia of an object or air (hereinafter simply referred to as an object) created or caused by the arc normal along with the rotation of the blade, so that the rotational resistance friction is equal to that of the blade itself and its outer end. Many concentrate on the outer wall. Therefore, the magnitude of the force for sucking and discharging an object is generally proportional to the rotation speed, and if a stronger force is desired, there is a tendency to link to a higher speed and a larger power.

Also, from a structural point of view, the blades of those devices are often arranged on the outer peripheral side away from the periphery of the rotating shaft,
The existence of the space area causes a loss in the function of converting the negative pressure generated on the outer circumference by the rotation of the blade into suction force, and furthermore, in the transport of cutting straw, fir, etc., fiber impurities adhere to the incident point of the blade wing. Often this caused a significant drop in efficiency.

For that purpose, there is a need for a blade structure and an arrangement method, and an improvement technique for reducing the rotation speed and required power.

(Problems to be Solved by the Invention) The present invention has been made in view of the above circumstances, and aims to improve some of the problems. One of them is to disperse and reduce the resistance friction concentrated on the blade wing itself and its outer end and outer peripheral wall, strengthen the generated negative pressure, increase the flow inertia of the object, and relatively increase the rotational speed and the required power. The aim was to reduce and prevent trouble.

This is in a commonly used form according to claim 3.

Next is to expand the field of use. The in-line wind conveyance device (Japanese Patent Application No. 63-967) on which the present application was based was a utilization form according to claim 2, which has a function of performing cutting biting and discharging at a relatively low speed in series. The improvement of the blade wing shape based on the trial study made it possible to expand the target object and the use form, and filed an application by enlarging the third and fourth types.

(Means for Solving the Problems) The present invention is based on the synthetic cycloidal curve for the blade wings formed in the previous application, but as a result of trial examination, a synthetic sine curve that ensures the intended blade shape is obtained. The method has been improved. Basically, a plurality of blade wings having a one-dimensional width in the wing shape are arranged eccentrically, with the tangent at the point A shown in FIG. .

(1) FIG. 1 shows a structural diagram of a basic vane blade shape, which is based on the following.

 The general formula of the synthetic sine curve serving as the base tone is represented by y = Asin (Bx).

The x unit is radian. In this example, the inflection point O of the curve is the origin and the left side (CBO) of the inflection point O is x ≧ 0 and the basic amplitude is a. ····ceremony On the right side (OAD) from the inflection point O: 0 ≦ x and the basic amplitude is 2a. Are respectively shown.

The solid line in FIG. It is due to.

The point A of the blade wing with the width of the required one-dimensional shape and the blade shape created in this way (related to the blade base, eccentricity, and OAD
In this method, the tangents of the curved lines in (a) are superimposed on the tangents of the circles around the rotating shaft, and the blades having a structure that is arranged and fixed at a plurality of positions are used in each device to improve the efficiency. is there.

Note that the combination of the wing curves and the radius (eccentricity) of the circumference of the rotating shaft serving as the blade wing base should be determined by careful consideration because the relative relationship is large for each target object, purpose of use, and device. is there.

The above is the description of the means according to claim 1, which is the basis of the present invention.

(2) The structure according to claim 2 is an apparatus for transporting cereals and similar objects by using the rotational force of the blades shown in FIGS. 4, 5 and 6 in series. From the characteristic that the object bites at the point C in the vane diagram and the centrifugal inertia is given at the point P, the rotation of the blade is converted to the flow inertia of the object without waste. Since a direct impact force is applied during use, a rotational speed that does not damage the grain must be set appropriately.

(3) The configuration according to claim 3 is shown in FIGS. 7, 8, and 9. This device is used as a suction blower or a pump that uses negative pressure generated by the rotation of the blades. All of the features of the wing are alive in this utilization type. That is, in the configuration and arrangement, the tangent line of the vane diagram A and the tangent line of the vane diagram A are overlapped with each other, so that the incident angle of the vane is close to 0 and the resistance of the object is close to 0.

The trigger of the present invention is that the difficulty in transporting agricultural materials such as cut straws and peaches is due to the fact that the efficiency is significantly reduced due to the attachment of fibrous impurities at the incident point of the blade, and the obstacle increases as the speed increases. It was because. The rotational force of the blades is converted to the flow inertia of the object such as suction and discharge with almost no waste, and the resistance of the object is small. It is necessary to set an appropriate rotation speed.

(4) The configuration according to claim 4 is shown in FIGS. 10, 11, and 12.

Since snow and compost are coarse and dense, they contain a lot of water and tend to solidify, so they are devices that cut and discharge a relatively large amount in series without applying pressure. It is necessary to set the number of rotations so that the air released by rotation does not hinder the cutting bite.

(5) Claim 5 refers to the reference numerals 7, 7 ', 7 ", 7 in FIGS.
This is an auxiliary device that performs the auxiliary function of item 4 described above and collects and supplies objects to the machine when snow or compost has a shallow accumulation layer.

(6) The structure according to claim 6 is indicated by reference numerals 12 and 13 in FIG. Originally it should have been part 4 of this machine from the beginning. Even though it is usually small, snow removal equipment requires a propulsion function in addition to maintaining the fuselage, but cutting and biting at point C of the blade according to the present invention are performed without difficulty, but since the target object has some caking properties, However, since the shearing force is linked to the pulling force of the airframe, the propulsion can be performed with the assistance of human power. This is a device that takes advantage of the features of the blade structure of the present invention.

(Function) The function of the airfoil on which the present application is based is shown in FIG. 2 and FIG. 3. The airfoil equipped with the airfoil having the airfoil and the one-dimensional shape is raised by the rotation. Function synergistically with the flow inertia of the object to be moved. The details will be described below by use type.

The type of claim 3 is a device in which the rotating blade sucks an object from the suction port with rotation and flows outward from the center base to discharge the object, as shown in FIG.
The resistance is small due to the characteristic blade curve structure and the arrangement device method given to the blade wing. That is, since the incident angle of the blade at the position of the circumference of the rotary shaft is mounted close to 0, the resistance to the object to be sucked is close to 0. Thereafter, the object flows with little impact resistance to the blade wing, and is discharged to the power point P. The rotating force of the blade is directly converted into the flow inertia of the object, and a strong negative pressure is generated. Since the force point P for discharging the object is farther from the outer end point C of the blade, the object shearing force is small and the resistance friction against the outer peripheral wall is also small.

An example in which the force for discharging an object is concentrated at point P is represented by M = Gr where M is the rotational moment, M is the weight of the conveyed object, G is the distance from the axis center to the power point P, and r.

In this way, the rotational energy of the blades is directly converted to the centrifugal flow inertia of the object and promotes each, giving bounce and inertia to the discharge of the object, so that the negative pressure becomes relatively strong, and the suction and discharge power synergistically The effect is enhanced, and the efficiency is improved.

Also, the rotating blades cut and bite and discharge the object in series. (2nd and 4th type)
As shown in the figure, the point C on the side end of the blade that cuts the object is separated from the point P where the force to be emitted is concentrated, so that the object can be bite easily and is integrated with the air flowing from the base. This is an effect of mainly utilizing the centrifugal inertia of a cereal-shaped object or an object having a shape such as snow, which increases a force to be released.

As described above, the use of the rotary blade having the characteristics described in claim 1 is roughly classified into two types. However, as pointed out in the preceding section (means), the requirements for forming the blade are particularly important. However, it is natural that there are subtle differences depending on the usage type. Further, there is a degree that the rotation speed is adapted to the use, and the blower type that suctions and discharges the item 3 may be quicker according to the necessity of the discharging force. In the case of the function type which is performed in series, it is necessary to consider a requirement that the wind force must be set so as not to hinder the biting at the biting position of the object.

(Embodiment) Hereinafter, an embodiment according to the present invention will be described with reference to the drawings according to the above-mentioned means and actions.

FIG. 1 is an example of a calculation drawing for creating a vane blade airfoil on which the present invention is based.

FIG. 2 and FIG. 3 are schematic diagrams of the function accompanying the rotation of the blade wing described in the section of the operation.

FIG. 4 is a plan sectional view of the in-line transfer device of claim 2, FIG. 5 is a side sectional view thereof, and FIG. 6 is a front sectional view thereof.

FIG. 7 is a cross-sectional plan view of the suction-type transfer device according to claim 3.
FIG. 8 is a side sectional view thereof, and FIG. 9 is a front sectional view thereof.

FIG. 10 is a plan sectional view of a serial cutting type transfer device according to claims 4, 5 and 6, FIG. 11 is a side sectional view thereof, and FIG. 12 is a front sectional view thereof.

FIG. 1 has been described in detail in the section of the means. FIG.
Since FIG. 3 is also described in detail in the section of operation, the description of the configuration is omitted.

In the second embodiment shown in FIGS. 4 to 9, reference numeral 1 denotes a rotating shaft. Numeral 2 is a bearing case fixed to a 2A table.
Reference numeral 3 denotes a casing, which is provided with a 3A side plate and fixed to a 2A base. Reference numeral 4 denotes an input port or a suction port of the object, and reference numeral 5 denotes a discharge port. 6A is a flange composed of a rotating blade axis and a disk perpendicular thereto, on which a plurality of blade blades are mounted. Numeral 6 denotes a rotation axis circumference circle which is the position of the blade wing base, and 6-1 to 6-
6 and 6-1 'to 6-4' are respective blade wings. 7 is a drive pulley.

In FIGS. 10 to 12, reference numerals 1 and 1 'denote rotation axes.
Reference numeral 2 denotes a gear box on which a rotating shaft is mounted. Reference numeral 3 denotes a casing-like cover, which has 5 discharge ports with a built-in 4 collecting plate at the top. Reference numerals 6A and 6A 'denote flanges made of a rotating blade shaft and a disk perpendicular thereto, on which a plurality of blade blades are mounted. Numeral 6 denotes a rotating shaft circumferential circle at the position of the blade wing base, and 6-1 to 6-6 and 6-1 'to 6-6' denote blade wings. Reference numerals 7 and 7 'denote a plurality of blades each having an angle capable of screwing toward the center and fixed to a rotation shaft extending from 1 and 1'. 8 is a power transmission shaft case,
9 engines and 2 are connected. 10 and 11 are handle handles. Reference numerals 12 and 12 'denote sledges, which are connected to 8 by support rods 13 and 13' to hold the fuselage. 14 is a support rod for the engine part.

 The operation of the above configuration will be described in order.

(1) In the apparatus shown in FIGS. 4 to 6, when the pulley 7 is driven by the power in the set rotation direction, the rotating blades rotate. When an object is thrown in from 4, the outer edge of the blade takes in without difficulty and is released from there. It is to be understood that the rotation of the blades functions efficiently with biting of the object and conversion of the centrifugal fluidity, and furthermore, application of the discharge power, as described in the operation section shown in FIG.

In the case of this machine, if the wind generated is too strong (rotation is too fast), biting from 4 will be prevented,
An appropriate rotation speed is required. This is a simplified device that is used at relatively low speed and is suitable for conveying objects such as grains without relying on wind power.

(2) In the apparatus shown in FIGS. 7 to 9, when the pulley 7 is driven in the set rotation direction by power, the rotating blades rotate. The object entering from the inlet of 4 is taken in without difficulty between the blades having an extremely small incident angle, and is emitted from 5. The function of increasing the centrifugal discharge power of the rotation of the blades, which is less affected by the rotation resistance and is converted into the flow inertia of the object as it is, is described in detail in FIG. I want to be.

The device of this example has a small direct resistance associated with the rotation of the blade, even if the target object is different, such as an object that is mixed with air such as air, peach, flour, etc. Since the rotating energy of the blade is directly converted into the centrifugal flow inertial force of the object, a high-speed and high-pressure transport effect can be easily obtained. It is noted that high negative pressure has many fields of application.

(3) In the apparatus of FIGS. 10 to 12, the rotating blades rotate in a set direction by the engine power of 9. When an object is supplied to the released front arc, the object is cut by the outer end point C of the blade, is easily held by the blade, rotates, and is discharged from 5.

This example is specifically an application example of a device for moving and transporting small snow or compost. However, since the shearing force of the object at the outer end point C is small, it is easy to bite in a large cross-sectional area. is there. Then, the centrifugal flow inertia force is applied to the held object, and the object is smoothly discharged. In addition, in the case of this example, since the biting of the object is performed without difficulty, the biting does not require a forward force, and rather, the power of the body is pulled by the object to be processed. By providing the sled portion only for the purpose, the work operation can be performed, and the device can be simplified, simplified, and reduced in size. Suitable for moving and transporting objects with large volumes such as snow.

As in the example of (1), if the wind force caused by the rotation of the blade is too strong, the biting of the object is hindered, so that an appropriate rotation speed is required. Further, it is natural that the present device can be used as an attachment of a tractor or the like, for example, as a structure including only a working machine.

(Effects of the Invention) Effects will be described based on the description of the operation according to the usage type of the above embodiment.

Regarding the use of the blower type according to the third aspect, in many of the conventional types, the blade wing is installed near the outer periphery away from the suction port. As a result, a flow loss of the object occurs between the suction port and the incident point of the blade, which often causes trouble depending on the object. On the other hand, the device according to the present invention is invented from the need to avoid the trouble, and is very efficient, and the efficiency of the air volume and the air pressure in proportion to the rotation speed is greatly improved as described in the mechanism and operation described above. If the same efficiency is required, the number of revolutions and the driving force can be greatly reduced. It has been proved that it is efficient without any trouble in transporting cut straws and hulls. It is noteworthy that the negative pressure and the discharge pressure increase, so that the effect of using the water pump is high.

The in-line type transport device according to the second aspect is a simple device capable of transporting cereals and the like by low-speed rotation, which leads to expansion of use.

The use of the snow removing device of the fourth aspect can be expanded from a small and simple device to a large one. In particular, it is possible to cope with humid snow and the like because of its simple mechanism.

As described above, the characteristic vane structure of the present invention has made it possible to reduce the required power and cost in use. The fact that the suction force and the discharge pressure based on the high negative pressure are easily obtained leads to the expansion of the application field. This opened the way for the use of snowplows.

In today's economic activities, there is a strong demand for more efficient transport equipment using rotating blade mechanisms, so the effects of expanding the use and increasing the efficiency are extremely large, and the effects of cost reduction are also great. Can contribute to development.

[Brief description of the drawings]

FIG. 1 shows a method of generating a synthetic sine curve on which the improved airfoil of the rotary vane wing, which forms the basis of the present invention, is illustrated. FIG. 2 is a schematic view showing a blade function associated with rotation of a rotating blade of the axial suction type apparatus. FIG. 3 is a schematic diagram showing a blade function associated with the rotation of the rotary blade of the serial cutting type device. FIG. 4 is a plan sectional view of the series transfer device (blower), FIG. 5 is a side sectional view thereof, and FIG. 6 is a front sectional view thereof. FIG. 7 is a plan sectional view of a suction-type transfer device (blower), FIG. 8 is a side sectional view thereof, and FIG. 9 is a front sectional view thereof. 10 is a plan sectional view of a serial cutting type transfer device (snow plow), FIG. 11 is a side sectional view thereof, and FIG. 12 is a front sectional view thereof. (Explanation of reference numerals) In each drawing (FIGS. 4 to 12) 1... Rotating shaft, 2... Bearing case (or gear box), 2A... Stand, 3... Casing, 4. ), 5 ... Discharge port, 6A ... Flange, 6 ... Rotary shaft circumference, 6-1 to 6
6 or 6-1 'to 6-4', etc .... Blade wings, 7 ... Pulleys (plural blades in FIG. 10), 8 ... Power transmission case, 9 ... Engine, 10 and 11 ... Handle, 12 ……
Sled part, 13 ... Support rod, 14 ... Support rod

Claims (6)

(57) [Claims] An apparatus for transporting an object by the action of rotating blades built in a casing and driven by power,
The rotating blades are based on a composite sine curve formed by combining sinusoidal curves with different amplitudes and ranges, and the base of a plurality of blade wings having a one-dimensional width is positioned at the base position. A tangential line of the blade blade of the rotary blade overlaps a tangent line of a concentric circumference having a radius substantially equal to the radius of the suction port around the rotation axis. 2. A cereal or similar object is rotated by a mechanism having an input port and a discharge port in series with the outer peripheral wall of a casing containing rotating blades, and taking in and discharging in series with the rotation direction. 2. The in-line transfer device according to claim 1, wherein the transfer device has a function of transferring by means of: 3. A casing having a built-in rotary vane provided with a discharge port at one end of an outer peripheral wall and a suction port at a rotational axis position (center) of the side wall, and mixed with air or air by rotation generating a strong negative pressure. 2. The suction type according to claim 1, wherein the suction type has a function of transporting an object such as a fir, a sawdust, a grain powder, or the like, which is likely to be integrated, or an object having a fluidity such as water. Transport device. 4. A casing cover, in series with a rotary blade, which is open at the front in contact with the object to be processed by an arc thereof and covers another side wall and an arcuate contact portion with a circular arc, and a collective discharge portion on an upper portion of the cover. 2. The serial cutting type transport apparatus according to claim 1, wherein the transport mechanism has a function of transporting an object such as snow or compost by a rotating mechanism which performs the discharge in series. 5. The apparatus for cutting and conveying an object in series according to claim 4, wherein a plurality of blades having an angle capable of extending the rotation axis and moving in the central direction by rotation are attached to both ends of the rotation blade axis. 5. The serial cutting-type transfer device according to claim 4, further comprising a function of scraping and feeding an object such as snow in a central direction in addition to a function of cutting and transferring the object. 6. The series connection device according to claim 4, wherein the apparatus for cutting and transporting an object in series has a sled portion at a lower portion of the body for holding the body and moving. Cutting type transfer device.