Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16H—GEARING
  • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
  • F16H25/08—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for interconverting rotary motion and reciprocating motion
  • F16H25/12—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for interconverting rotary motion and reciprocating motion with reciprocation along the axis of rotation, e.g. gearings with helical grooves and automatic reversal
  • F16H25/122—Gearings with helical grooves and automatic reversal

Definitions

• the invention is a movement transformation device, mechanism and driving gear that consists of a rotor, a tool that moves two ways in alternating straight line, power transmission units and a unit that makes sure that the power transmission units stay in position.
• the wanted rotor is connected to the engine rotor.
• This can be an internal axis-like tool and can be an external case-like tool.
• An inescapable path is created from optional radiuses, curves, and straight lines into the external diameter of the axis-like tool.
• a case-like tool is to be found of the latter tool's external diameter that will carry out the alternating movement. It will carry out the two way straight line movement in the axial direction, i.e.
• the stroke and the speed within can be modified by changing the path's size and shape.
• the rotation of the tool making alternating movement, its rotation movement there and back and its lubrication can be executed upon demand.
• a fixed sliding bush, grease, oil film may be satisfactory, in which the two-way movement takes place.
• Under greater stress balls may be inserted into the fixed sliding bush in order to minimize friction factors.
• the shape of the inescapable path can also be optimized by the necessary momentum, revolutions per minute, stroke and other parameters.
• the device may be operated in a closed system, thus in an insulated container that provides permanent lubrication.
• Movement transformation mechanisms are familiar to us, but the majority of those are radial direction ones.
• the conventional swivel mechanism as well as ex-centre solutions are like this, the majority of those are also created by radial direction.
• This invention aims to use the inescapable path in a way that has not been known so far.
• This inescapable path mechanism aims e.g. to put the transmission cogwheels into a new position by turning away less than 360 degrees at a time. Furthermore, the inescapable path construction and its structure is different from the mechanism we have designed and it is not able to provide alternating movement due to high revolutions per minute and is also functionally different from our invention. This solution is not able to operate continually making thousands of revolutions per minute.
• the invention claims that it is a favourable construction with a majority needle bearing solution.
• this invention there are essentially two power transmission units with eight needle bearings and two separate paths that are perpendicularly located against the axle direction and two pegs with cone-shaped jointings that will transmit power by one-sided loading perpendicularly against the axle in a way that needle bearings are also used at non-defined sports at both ends of the axle.
• This is a great difference compared to our invention, because the mechanism we presented transmits momentum on two double-controlled paths against each other that are shifted from each other, balancing radial powers.
• a further key issue is that the above mentioned invention's power transmission unit rotates compared to its own axle when power is transmitted directly, while ours performs this by a rolling movement.
• the above mentioned invention has two pegs and bearings, thus the external case is not able to rotate and make a high number of revolutions per minute without the inertial power of the masses, while our invention can rotate the case-like tool upon request and the alternating movement will be provided by the axle-like tool.
• this inescapable path mechanism does not present any concrete tasks or solutions to them.
• This invention presents several separate, two-unit inescapable paths with reverse angular offsets.
• An essential difference is that the required main work is not performed by the inescapable path directly, but it is created by another mechanism on the symmetry axle that is not identical with the axle of the inescapable path.
• the pistons are on another axle line here.
• the above mentioned invention is not able to operate in the reverse construction structure, where the external case would rotate. Our invention performs this on the same symmetry axle, thus the inescapable path and the tool performing the alternate movement on it can be characterised in this solution as the inescapable path and the piston sharing the same axle.
• This invention is a movement transformation construction that forces the axle-like tool to rotate that was created by the inescapable path between two units, parallel with the axle of the inescapable path, but with a time shift.
• the side direction loading will balance itself only in the medium position of the stroke and the invention is not able to operate with a high number of revolutions per minute in other positions due to side forces and friction factors.
• An important difference is that in case of our invention the major work performance, the axle-like tool created by inescapable path and the piston fall in the same axle line, thus both the piston and the rotation fall on the same symmetry axle.
• a problem source of ex-centre solutions can be that the level of resonance is too high.
• Axial rolling drive can also reduce this problem.
• the task to be solved is to cut the mistakes of systems known and used so far, to minimise the level of resonance that may be harmful to health, to reduce production costs and to enhance the construction's lifespan.
• a short stroke could be called the ex-centre solution of the present production method of a hedge cutting machine. Due to a hedge cutting machine's ex-centre mechanism, it was equipped with radial driving, which led to relatively many internal units and the engine had to make a high number of revolutions per minute because of transmissions in order to reach the required stroke speed and momentum.
• our invention suggests that the engine should be connected with the axle with an inescapable path, onto which the case-like tool making alternate movement is fit, then it is fixed against turning away and it directly connected to the hedge cutting knife that performs the main job. In order to get to this point the part of the rotating axle that is further away from the engine is equipped with bearings and the machine will be operable.
• Figure 1 describes the major units of the contruction in the points of claim.
• the innovation's major advantage is that it consists of four key parts, thus it enables the user to reach the very goals set by optimisation and development and it is much easier to coordinate such a minimal number of units in order to solve the duty ahead than before.
• Conventional constructions certainly have the disadvantage against our invention that they consist of more parts, have more connection points and their development opportunities are less available than of this invention.
• Movement transformation is determined by the required connected tool inside the construction within a rotation driving.
• the rotation or alternating movement can be performed by both the axle-like tool no. 1 and the case-like tool no. 2.
• the case-like tool no. 2 is connected to the axle of the engine no. 9 and the axle-like tool no.l will perform the alternating move.
• the axle-like tool has an inescapable path no. 3 and the positioning of the power transmission tools no. 4 as well as the support tools no. 5 fix the transmission of the engine's, no. 9, rotation and its reformation into alternating movement.
• the driving takes place in the same direction with its symmetry axle with the inclusion of rolling power transmission units no. 4 and a construction that blocks the turn of part no.
• gliding surface can be self-lubricant with friction bearing, ball rolling alternate move, no. 19.
• the construction may operate with partial lubrication or friction reduction, or in a closed system, where friction factors are continually minimised by proper lubricants and closed by a closing cap no. 15. This must happen with the inclusion of stability bearings no. 18 and units no. 21 that can reduce or mitigate the axial direction inertial power of the masses that arise at two ends of the alternate move, when directions are changed.
• the reduction is to be performed by the background inclusion of a thrust bearing no. 23. that will not block rotation.
• the piston no. 12 will perform the alternating movement from the rotation in the cylinder no. 20, in the case presented here the air will be carried and condensed.
• Figure 10 will present how the production costs of another tool could be reduced.
• the engine may be prepared in a way that the inescapable path required by stroke is already established on its axle.
• the power transmission units and the units necessary for its positioning must be attached to the engine axle to get alternating movement.
• the engine can produce alternating movement with the help of the case attached to it.
• the part connected to the case is already the device that performs the main job.
• Figure 9 shows that in case a strong power transmission is required, the momentum can be transmitted by any unit of the bearings.
• the inescapable path here makes a graspU"-shaped groove form, the bearing fits into this.
• the invention is to be used in a wide range of areas from step motor through low revolutions per minute to extreme high revolutions per minute, because the coordination of power transmission gets simpler by the direct driving.
• the invention has an even more simplified version for mass production, where engines are produced with inescapable path axle, which makes alternating movement much easier.
• a further advantage of the solution is that an inescapable path is already created on the axle of the engine, driving, the rotational part of our rotation unit, thus the production of further parts is not necessary and alternating movement can be reached by the attachment of a single unit.
• the production material of the construction's main units can be defined very easily, if we know what stress the construction must bear in a certain area of use.
• the construction's life span is actually determined by two key units, therefore material quality is selected to meet demands, friction factors get minimised, the optimal inescapable path is created on it, it will be heat and surface treated upon demand, which all lead to a well-predictable operational period.
• connection unit will already make a connection to the part that performs the main job.

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• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Transmission Devices (AREA)

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Publications (1)

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Country Status (1)

• 2012
  • 2012-12-21 EP EP12860972.4A patent/EP2852778A2/de not_active Withdrawn

Non-Patent Citations (1)

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