WO2013186739A2 - A location changer with variable momentum - Google Patents

A location changer with variable momentum Download PDF

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Publication number
WO2013186739A2
WO2013186739A2 PCT/IB2013/054855 IB2013054855W WO2013186739A2 WO 2013186739 A2 WO2013186739 A2 WO 2013186739A2 IB 2013054855 W IB2013054855 W IB 2013054855W WO 2013186739 A2 WO2013186739 A2 WO 2013186739A2
Authority
WO
WIPO (PCT)
Prior art keywords
weights
vibration
shaft
location
location changer
Prior art date
Application number
PCT/IB2013/054855
Other languages
French (fr)
Other versions
WO2013186739A3 (en
Inventor
Aydin OZKAN
Original Assignee
Ozkan Aydin
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ozkan Aydin filed Critical Ozkan Aydin
Publication of WO2013186739A2 publication Critical patent/WO2013186739A2/en
Publication of WO2013186739A3 publication Critical patent/WO2013186739A3/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/10—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy
    • B06B1/16—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses
    • B06B1/161—Adjustable systems, i.e. where amplitude or direction of frequency of vibration can be varied
    • B06B1/162—Making use of masses with adjustable amount of eccentricity
    • B06B1/164—Making use of masses with adjustable amount of eccentricity the amount of eccentricity being automatically variable as a function of the running condition, e.g. speed, direction

Definitions

  • the present invention relates to a location changer which is used in machines obtaining vibration by using weight, and which does not generate vibration by shifting from the state generating vibration (unbalance) to the state not generating vibration (balance), or which generates vibration by shifting from the state not generating vibration (balance) to the state generating vibration (unbalance).
  • Machines such as vibro hammers, sieving machines, polishing machines, parquet and strip machines can be given as examples for the machines functioning with vibration.
  • rotors for generating vibration.
  • These rotors are arranged in two sets of two, one on top of the other (such that there will be one at each corner of a rectangle).
  • the said rotors can also be comprised of two shafts such that two balances will be on a single shaft.
  • weights in shape of a semi-cylinder in each one of the said rotors and the system generates vibration by means of the said weights during rotation.
  • vibrations are formed at the vibro hammer, whereas if they are at opposite directions, vibrations are not formed at the vibro hammer.
  • Another example for machines operating with vibration is sand sieving machines. Semi-cylindrical weights are placed on both sides of the chamber present in the said machines, vibration is generated by means of rotating the said weights in the machine and thus the machine performs its sieving function.
  • the operational system of the machines such as polishing machines, parquet and strip machines and the machines operating with vibration aside from the said stated machines is generally performed by rotating the semi-cylindrical weights.
  • the objective of the present invention is to provide a location changer which does not generate resonance.
  • Another objective of the present invention is to provide a location changer which enables vibration to be generated even only with one semi-cylindrical weight.
  • Figure 1 is the perspective view of the location changer in the state not generating vibration (balance).
  • Figure 2 is the perspective view of the location changer in the state generating vibration (unbalance).
  • Figure 3 is the momentary perspective view of the location changer while shifting from the state generating vibration (unbalance) to the state not generating vibration (balance) or from the state not generating vibration (balance) to the state generating vibration (unbalance) .
  • Figure 4 is the perspective view of the two of the location changers in the state generating vibration (unbalance).
  • Figure 5 is the perspective view of the two of the location changers in the state not generating vibration (balance).
  • Figure 6 is the perspective view of the location changer in the state not generating vibration (balance) in another embodiment.
  • Figure 7 is the perspective view of the two of the location changers together with the first transmission member and the second transmission member.
  • the inventive location changer (1) which does not generate vibration by shifting from the state generating vibration (unbalance) to the state not generating vibration (balance), or which generates vibration by shifting from the state not generating vibration (balance) to the state generating vibration (unbalance), essentially comprises
  • At least one pusher (4) which enables the weights (3) to move around the shaft, at least one slot (5) which is made for placing the pusher (4) to the weight (3), at least one first transmission member (6) which enables at least two shafts (2) and four weights (3) placed next to each other and/or on top of each other to operate synchronously,
  • At least one second transmission member (7) which provides the synchronization during changing the angle values between the weights (3) according to the preferred vibration force by moving a little less or more relative to the first transmission member (6),
  • weights (3) there are at least two weights (3) around the shaft (2).
  • One of the weights (3) may be fixed to the shaft (2), and the others can rotate easily around it, as well as all weights (3) can also rotate easily around the shaft (2).
  • the location changer (1) comprised of weights (3) and the shaft (2) is placed to the area wherein vibration generation is desired.
  • the weights (3) are preferably are in the state not generating vibration (balance).
  • the shaft (2) is started to be rotated around its own axis in the state not generating vibration (balance). By means of being rotated like this, resonance is not generated in the location changer (1) and the changer (1 ) is prevented from being damaged.
  • the angle between the weights (3) begins to be narrowed at a preferred cycle speed.
  • the angle values between the weights (3) can be changed according to the preferred vibration force. In case wherein the total center of gravity of the weights (3) is farthest from the rotational axis of the shaft (2), in other words when the angle between the weights (3) is approximately zero, the highest vibration value is obtained from the location changer (1). In case wherein the total center of gravity of the weights (3) coincides with the rotational axis of the shaft (2), vibration is not generated in the location changer (1) and the system is balanced.
  • the angle between the weights (3) present in the location changer (1) is changed via pusher (4) placed into the slot (5).
  • the movement of the pusher (4) inside the slot (5) is preferably performed hydraulically. Besides, the movement of the pusher (4) inside the slot (5) can be performed pneumatically, electrically or electronically.
  • the first transmission member (6) is placed on one surface of the weights (3), and the second transmission member (7) is placed on the other surface.
  • the location changer (1) is mounted on the body (8) in this state.
  • Another location changer (1) is placed in the previous location changer (1) such that the first transmission member (6) and the second transmission member (7) will operate synchronously.
  • one of the location changers (1) is driven and by means of this drive the other location changers (1 ) can rotate synchronously with the location changer (1) which is driven.
  • the weights (3) present in the location changers (1 ) are preferably in the state not generating vibration (balance) during first placement.
  • the driven location changer (1) starts to rotate around its own axis in the state not generating vibration (balance).
  • all other location changers (1 ) connected to the said location changer (I ) starts to rotate synchronously.
  • resonance is not generated in the location changers (1) and the location changers (1) are prevented from being damaged.
  • the angle between the weights (3) present in each location changer (1 ) starts to be narrowed.
  • the second transmission member (7) enables the angle values between the weights (3) present in each location changer (1) synchronously by moving a little less or more relative to the First transmission member (6).
  • the vibration force can be adjusted at a preferred rate.
  • the total center of gravity of the weights (3) present in each location changer (1) becomes overlapped with the rotational axis of the shaft (2) to which the said weights (3) are connected, thus vibration is generated in no location changer (1).
  • Bringing the weights (3) of all location changers (1) to the state not generating vibration (balance) is provided by means of the second transmission members (7).
  • more than two weights (3) are placed around the shaft (2), and the angle values between the said weights (3) can be changed according to the preferred vibration force, furthermore in cases wherein the vibration generation is not preferred, total center of gravity of all weights (3) is adjusted such that it will pass through the rotational axis of the shaft (2) and thus no vibration is generated in the location changer (1).
  • more than one location changer (1 ) having one shaft (2) a plurality of weights (3), one first transmission member (6) and one second transmission member (7) are placed next to each other and/or on top of each other, and all location changers (1) are enabled to operate synchronously.

Abstract

The present invention relates to a location changer with variable momentum wherein the total center of gravity of all weights (3) it has coincides with the rotational axis of the shaft (2) until the rotational cycle exceeds the resonance cycle and thus which is in the state not generating vibration (balance); and wherein the angle between the weights (3) starts to be narrowed at a preferred cycle speed after exceeding the resonance cycle and thus which comes to the state generating vibration (unbalance), furthermore the vibration force of which can be changed optionally.

Description

DESCRIPTION
A LOCATION CHANGER WITH VARIABLE MOMENTUM Field of the Invention
The present invention relates to a location changer which is used in machines obtaining vibration by using weight, and which does not generate vibration by shifting from the state generating vibration (unbalance) to the state not generating vibration (balance), or which generates vibration by shifting from the state not generating vibration (balance) to the state generating vibration (unbalance).
Background of the Invention
Functioning of the machine by generating vibration in a machine is commonly used today. Machines such as vibro hammers, sieving machines, polishing machines, parquet and strip machines can be given as examples for the machines functioning with vibration.
For example, in vibro hammers one of these machines, there are at least for rotors for generating vibration. These rotors are arranged in two sets of two, one on top of the other (such that there will be one at each corner of a rectangle). Besides, the said rotors can also be comprised of two shafts such that two balances will be on a single shaft. There are weights in shape of a semi-cylinder in each one of the said rotors, and the system generates vibration by means of the said weights during rotation. In the case that the weights of the lower two rotors and those of the upper two rotors are at the same direction, vibrations are formed at the vibro hammer, whereas if they are at opposite directions, vibrations are not formed at the vibro hammer. Another example for machines operating with vibration is sand sieving machines. Semi-cylindrical weights are placed on both sides of the chamber present in the said machines, vibration is generated by means of rotating the said weights in the machine and thus the machine performs its sieving function.
Besides the said machines the operational system of the machines such as polishing machines, parquet and strip machines and the machines operating with vibration aside from the said stated machines is generally performed by rotating the semi-cylindrical weights.
During rotating the semi-cylindrical weights, resonance is generated in a certain cycle range. Resonance is that a system oscillates in larger amplitudes in some frequencies than others. In these frequencies, even small periodic forces can generate very large amplitudes. This situation can cause substantial damages in the machines. Furthermore, at least for weights and a balance changing motor are required to have the state generating vibration (unbalance) in vibro hammers used today. This situation causes high costs in production of the said machines.
Summary of the Invention
The objective of the present invention is to provide a location changer which does not generate resonance.
Another objective of the present invention is to provide a location changer which enables vibration to be generated even only with one semi-cylindrical weight.
A further objective of the present invention is to provide a location changer which generates vibration without needing to changing mechanism used in vibro hammers. Yet another objective of the present invention is to provide a location changer which generates vibration even only with one semi -cylindrical weight in vibro hammers.
Detailed Description of the Invention
A location changer developed to fulfill the objectives of the present invention is illustrated in the accompanying figures, in which:
Figure 1 is the perspective view of the location changer in the state not generating vibration (balance).
Figure 2 is the perspective view of the location changer in the state generating vibration (unbalance).
Figure 3 is the momentary perspective view of the location changer while shifting from the state generating vibration (unbalance) to the state not generating vibration (balance) or from the state not generating vibration (balance) to the state generating vibration (unbalance) .
Figure 4 is the perspective view of the two of the location changers in the state generating vibration (unbalance).
Figure 5 is the perspective view of the two of the location changers in the state not generating vibration (balance).
Figure 6 is the perspective view of the location changer in the state not generating vibration (balance) in another embodiment.
Figure 7 is the perspective view of the two of the location changers together with the first transmission member and the second transmission member.
The components shown in the figures are each given reference numbers as follows:
1. Location changer 2. Shaft
3. Weight
4. Pusher
5. Slot
6. First transmission member
7. Second transmission member
8. Body
The inventive location changer (1), which does not generate vibration by shifting from the state generating vibration (unbalance) to the state not generating vibration (balance), or which generates vibration by shifting from the state not generating vibration (balance) to the state generating vibration (unbalance), essentially comprises
at least one shaft (2),
at least two weights (3) the angle values between which can be changed according to the preferred vibration force,
at least one pusher (4) which enables the weights (3) to move around the shaft, at least one slot (5) which is made for placing the pusher (4) to the weight (3), at least one first transmission member (6) which enables at least two shafts (2) and four weights (3) placed next to each other and/or on top of each other to operate synchronously,
at least one second transmission member (7) which provides the synchronization during changing the angle values between the weights (3) according to the preferred vibration force by moving a little less or more relative to the first transmission member (6),
at least one body (8) wherein one or more than one shafts (2) can be placed with their weights (3).
In an embodiment of the invention, there are at least two weights (3) around the shaft (2). One of the weights (3) may be fixed to the shaft (2), and the others can rotate easily around it, as well as all weights (3) can also rotate easily around the shaft (2). The location changer (1) comprised of weights (3) and the shaft (2) is placed to the area wherein vibration generation is desired. During first placement, the weights (3) are preferably are in the state not generating vibration (balance). Then the shaft (2) is started to be rotated around its own axis in the state not generating vibration (balance). By means of being rotated like this, resonance is not generated in the location changer (1) and the changer (1 ) is prevented from being damaged. After the rotational cycle of the location changer (1) exceeds the resonance cycle, the angle between the weights (3) begins to be narrowed at a preferred cycle speed. The angle values between the weights (3) can be changed according to the preferred vibration force. In case wherein the total center of gravity of the weights (3) is farthest from the rotational axis of the shaft (2), in other words when the angle between the weights (3) is approximately zero, the highest vibration value is obtained from the location changer (1). In case wherein the total center of gravity of the weights (3) coincides with the rotational axis of the shaft (2), vibration is not generated in the location changer (1) and the system is balanced. The angle between the weights (3) present in the location changer (1) is changed via pusher (4) placed into the slot (5). The movement of the pusher (4) inside the slot (5) is preferably performed hydraulically. Besides, the movement of the pusher (4) inside the slot (5) can be performed pneumatically, electrically or electronically.
In another embodiment of the invention, there are at least two weights (3) around the shaft (2). The first transmission member (6) is placed on one surface of the weights (3), and the second transmission member (7) is placed on the other surface. Then the location changer (1) is mounted on the body (8) in this state. Another location changer (1) is placed in the previous location changer (1) such that the first transmission member (6) and the second transmission member (7) will operate synchronously. Then one of the location changers (1) is driven and by means of this drive the other location changers (1 ) can rotate synchronously with the location changer (1) which is driven. The weights (3) present in the location changers (1 ) are preferably in the state not generating vibration (balance) during first placement. Then, the driven location changer (1) starts to rotate around its own axis in the state not generating vibration (balance). Thus, all other location changers (1 ) connected to the said location changer (I ) starts to rotate synchronously. By means of rotating the location changers (1 ) in the state not generating vibration (balance), resonance is not generated in the location changers (1) and the location changers (1) are prevented from being damaged. After the rotational cycle exceeds the resonance threshold and at a preferred cycle speed, the angle between the weights (3) present in each location changer (1 ) starts to be narrowed. During this narrowing process, the second transmission member (7) enables the angle values between the weights (3) present in each location changer (1) synchronously by moving a little less or more relative to the First transmission member (6). By means of the weights (3) present in each location changer (1 ) changing locations synchronously, the vibration force can be adjusted at a preferred rate. In case wherein the state not generating vibration (balance) is preferred, the total center of gravity of the weights (3) present in each location changer (1) becomes overlapped with the rotational axis of the shaft (2) to which the said weights (3) are connected, thus vibration is generated in no location changer (1). Bringing the weights (3) of all location changers (1) to the state not generating vibration (balance) is provided by means of the second transmission members (7).
In another embodiment of the invention, more than two weights (3) are placed around the shaft (2), and the angle values between the said weights (3) can be changed according to the preferred vibration force, furthermore in cases wherein the vibration generation is not preferred, total center of gravity of all weights (3) is adjusted such that it will pass through the rotational axis of the shaft (2) and thus no vibration is generated in the location changer (1).
In another embodiment of the invention, more than one location changer (1 ) having one shaft (2) a plurality of weights (3), one first transmission member (6) and one second transmission member (7) are placed next to each other and/or on top of each other, and all location changers (1) are enabled to operate synchronously.
It is possible to develop various embodiments of the inventive location changer (1). The invention cannot be limited to the examples described herein and it is essentially as defined in the claims.

Claims

1. A location changer (1), which does not generate vibration by shifting from the state generating vibration (unbalance) to the state not generating vibration (balance), or which generates vibration by shifting from the state not generating vibration (balance) to the state generating vibration (unbalance), essentially comprising
at least one shaft (2), and characterized by
at least two weights (3) the angle values between which can be changed according to the preferred vibration force.
2. A location changer (1 ) according to claim 1 , characterized by at least one pusher (4) which enables the angle between the weights (3) to be changed.
3. A location changer (1) according to claim 1, characterized by at least one slot (5) which is made for the pusher (4) to be placed into the weight (3).
4. A location changer (1) according to claim 1 , characterized by at least one first transmission member (6) which enables at least two shafts (2) and four weights (3) placed next to each other and/or on top of each other to operate synchronously.
5. A location changer (1) according to claim 1 , characterized by at least one second transmission member (7) which provides the synchronization during changing the angle values between the weights (3) according to the preferred vibration force by moving a little less or more relative to the first transmission member (6).
6. A location changer (1) according to claim 1 , characterized by at least one body (8) wherein one or more than one shafts (2) can be placed together with their weights (3).
7. A location changer (1) according to claim 3 , characterized by weights (3) one of which can be fixed to the shaft (2), and the rest can be placed such that they can rotate around the shaft (2) easily, or all of which are placed around the shaft (2) such that they can rotate easily.
8. A location changer (I ) according to claim 1 , characterized by weight (3) which generates the highest vibration force in case wherein the total center of gravity is farthest from the rotational axis of the shaft (2), and which does not generate vibration in case wherein the total center of gravity coincides with the rotational axis of the shaft (2).
9. A location changer (1) according to claim 1, characterized by weight (3) which is located around the shaft (2), to one surface of which the first transmission member (6) is placed and to the other surface of which the second transmission member (7) is placed, and which is mounted to the body (8) in this state.
10. A location changer (1) according to claim 1 , characterized by second transmission member (7) which moves a little less or more relative to the first transmission member (6) during changing the angle values between the weights (3) present in a shaft (2), and thus which also changes the angle between the weights (3) present in the other shaft (2) synchronously.
11. A location changer (1) according to claim l,which has a shaft (2), a plurality of weights (3), one first transmission member (6) and one second transmission member (7), and which is characterized in that these can be placed next to each other and/or on lop of each other more than one.
12. A location changer (1) according to claim 1, the weights (3) of which are in the state not generating vibration (balance) until the rotational cycle exceeds the resonance cycle, the angle of which between the weights (3) starts to be narrowed at a preferred cycle speed after it passes the resonance cycle and thus which comes to the state generating vibration (unbalance), and which is characterized in that the vibration force of which can be changed optionally.
13. A location changer (1) characterized in that more than two weights (3) are placed around the shaft (2), and the angle values between the said weights (3) can be changed according to the preferred vibration force, furthermore in cases wherein the vibration generation is not preferred, total center of gravity of all weights (3) is adjusted such that it will pass through the rotational axis of the shaft (2).
14. A location changer (1 ) which is characterized by weight (3) the angle between which can be narrowed in a higher cycle than the resonance cycle and thus which comes to the state generating vibration (unbalance).
PCT/IB2013/054855 2012-06-13 2013-06-13 A location changer with variable momentum WO2013186739A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201206922 2012-06-13
TR2012/06922 2012-06-13

Publications (2)

Publication Number Publication Date
WO2013186739A2 true WO2013186739A2 (en) 2013-12-19
WO2013186739A3 WO2013186739A3 (en) 2014-06-12

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Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE424806A (en) *
EP2158976B1 (en) * 2008-08-27 2013-08-14 ABI Anlagentechnik-Baumaschinen-Industriebedarf Maschinenfabrik und Vertriebsgesellschaft mbH Vibration creator
DE102010010037B4 (en) * 2010-03-03 2019-10-31 Bomag Gmbh Continuously adjustable vibration exciter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
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