CA1077303A - Vibrator with eccentric weights - Google Patents
Vibrator with eccentric weightsInfo
- Publication number
- CA1077303A CA1077303A CA282,188A CA282188A CA1077303A CA 1077303 A CA1077303 A CA 1077303A CA 282188 A CA282188 A CA 282188A CA 1077303 A CA1077303 A CA 1077303A
- Authority
- CA
- Canada
- Prior art keywords
- shaft
- shafts
- pair
- vibrator
- bevel gear
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
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
- B06B1/163—Making use of masses with adjustable amount of eccentricity the amount of eccentricity being only adjustable when the system is stationary
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Jigging Conveyors (AREA)
Abstract
ABSTRACT OF THE INVENTION
Two eccentric weights of a vibrator are mounted, respectively, on two coaxial shafts, one of which is a hollow shaft mounted on the other shaft. The two shafts can be connected for rotation in unison, and can be separated for relative rotation to alter the angular rela-tionship between the weights. Mechanism is provided to alter the angular relationship between the weights while both shafts continue to rotate. The hollow shaft and the other shaft are connected, respectively, to one end of two beveled gear trains which can rotate as a unit about the axis of the shafts. By changing the angular relationship between the gear at the other end of the gear trains, the angular relationship between the eccentric weights, and hence the stroke of the vibrator, can be changed.
-1a-
Two eccentric weights of a vibrator are mounted, respectively, on two coaxial shafts, one of which is a hollow shaft mounted on the other shaft. The two shafts can be connected for rotation in unison, and can be separated for relative rotation to alter the angular rela-tionship between the weights. Mechanism is provided to alter the angular relationship between the weights while both shafts continue to rotate. The hollow shaft and the other shaft are connected, respectively, to one end of two beveled gear trains which can rotate as a unit about the axis of the shafts. By changing the angular relationship between the gear at the other end of the gear trains, the angular relationship between the eccentric weights, and hence the stroke of the vibrator, can be changed.
-1a-
Description
icj~7~73~3 In the present invention, a vibrator is provided with an improved mounting for the eccentric weights which facilitates the angular adjustment of two weights relative to each other. The mounting of the eccentric weights in accordance with the present invention lends itself to adjustment of the eccentric weights while the vibrator is running, and a system for accomplish-ing this desirable goal in an effective, positive manner is disclosed.
- In brief, in accordance with the present invention, there is pro-vided a vibrator having a first pair of concentrlc shafts on an axis of rotation, each of said shafts having eccentric weights connected thereto to define with said shafts eccentric elements, characterized by a second pair of concentric shafts on said axis, a first differential bevel gear train between one shaft in said first pair of shafts and one shaft in said second pair of shafts, and a second differential gear train between the other shaft in said first pair of shafts and the other shaft in said other pair of shafts, means to effect relative rotation between the shafts of said second pair of shafts to change the phase relation between said eccentric weights.
BRIEF DESCRIPTION OF THE DRAWINGS
` Figure 1 is a view in perspective of an electromechanical vibrating feeder incorporating the vibrator of the present invention.
Figure 2 is a side view, partially in section, showing the vibrator of the present invention.
Figure 3 is a view taken on the lines 3-3 of Figure 2.
,---.'~' .....
.: .
7'73~3 Figures 4 and 5 are enlarged views, taken as the view of Figure 2, of portions of the vibrator of Figure 2.
DESCRIPTION OF THE PREFERRED EMBODIMENT
There is shown in F:igure 1 a vibrator 10 con-structed in accordance with the present invention. The vibrator 10 is shown, for illustrative purposes, as the driving force of a vibratory ~eeder 12 which is designed to receive material at an input end 12a and discharge material at a discharge end 12b. The vibrator of the pre-sent invention can be used to drive other machines, such as vibratory screens or, in fact, any equipmen-t which it is desired to vibrate.
It will be understood by those skilled in the art that the feeder 12 includes a trough 14 which is suspended by springs 16 from an overhead support. The feeder has a drive housing 15 which is rigidly connected to trough 14, and the housing 15 has spaced walls 15a, 15b. The vibrator 10 is mounted by means of springs 18 between the walls 15a, 15b to form with the trough a two mass, spring coupled, electromechanical vibratory feeder.
As shown in Figures 2 and 3, a vibrator housing 200 has side walls 202, 204 with openings therein lying on an axis C. Bearings 206, 208 are mounted in the openings in the walls 202, 204, respectively.
A first eccentric element 210 comprises a shaft 212 and a weight 214 secured to shaft 212. The weight 214 has a center of gra~ity spaced from the longitudinal rota-tional axis of the shaft, axis C, and constitutes an eccentric weight which renders the element 210 made up of weight 214 and shaft 212 eccen-tric.
A hollow shaft 216 has two portions: a first portion 216a mounted over shaft 212 and rotatably supported on axis C by bearing 206, and a second portion 216b S mounted over the end of shaft 212 and rotatably supported on axis C by bearing 208. The outer end of shaft porkion 216b extends outside the housing 200 and receives thereon a pulley 218. ~n electric motor 220 is mounted on the housing, and a pulley 222 is mounted on the motor drive shaft 220a. A belt 224 is received over pulleys 218, 222 ~or rotation of shaft portion 216b on axis C by the motor.
~ An eccentric weight 226 is mounted on hollow - shaft 216. The weight 226 has a first portion 226a which lS is keyed to first hollow shaft portion 216a, and has a second portion 226b which is keyed to second shaft portion 216b. The weight 226 also has an intermediate arcuate portion 226c which connects the weight portions 226a and 226b. Thus, when hollow shaft portion 216b is driven by motor 220, the torque is transmitted through weight 226 to drive hollow shaft portion 216a. The weight 226, like weight 214, has a center of gravity spaced from the axis C of rotation of hollow shaft 216 to constitute an eccen-tric weight. Thus, the hollow shaft 216 and weight 226, which is keyed to the hollow shaft, constitutes a second eccentric element 227. Both shaft 212 and hollow shaft 216 terminate at a gearbox 228.
The gearbox 228, as shown in Figure 4, has a housing or frame 230 which is rotatably supported, at one end, on a bearing 232 received on the end of hollow ..,~,~
73~)3 shaft portion 216a. A first control member 234 consists of a shaf-t having a first control bevel gear 236 secured to its inner end. A second control member 238, which is in the form of a hollow shaft, has a second control bevel gear 240 secured to its inner end. Shaft 234 is rota tably received in hollow shaft 238, which is ~ournaled in bearing 241. A first drive bevel gear 242 is secured to the outer end of shaft 212, and a second drive bevel gear 244 is secured to the outer end of hoLlow shaft portion 216a.
An intermediate shaft 246 is mounted trans-versely in the gearbox frame and is ]ournaled in bearings 248, 250 therein. A first intermediate hevel gear 252 is secured on shaft 246 and forms, with bevel gears 236, 242, a gear train 254 between shaft 212 (and hence the first eccentric element 210 of which shaft 212 is a part) and the first control member, or shaft, 234. A second ~` intermediate bevel gear 256 is rotatably mounted on bearings 258, 260 (which are received on intermediate shaft 246~ for rotation relative to shaft 246. The second inter-mediate bevel gear forms a gear train 262 with bevel gears 240, 244, between hollow shaft portion 216a (and hence the second eccentric element 227) and the second control member, or hollow shaft, 238.
Hollow shaft 238 is supported, outside the gear-box 228, by a standard 264 which is connected by bracket 266 to vibrator housing 200 (see Figure 5).
; Apparatus, indicated generally at 268 as shown in Figure 5, is provided outside the gearbox 228 to effect relative rotation between the first control member (shaft .:
,~
`'; ~
.~ ' ' . ~ . ~ .
` " ' ~ ` `,~ ~. ' ~ 0~73V3 234) and the second control member ~hollow shaft 238). The apparatus includes a housing 270 mounted on bracket 266, and bearing 272 mounted in the housing to receive the shaft 234. The hollow shaft 238 terminates at standard 264 (short of housing 270) and is secured to the standard so that gear 240 (which is secured to shaft 238) is always stationary. A motor 274 (when energized) drives a worm 276 which rotates a worm wheel 278 secured to shaft 234.
A pointer 280 is mounted on the end of shaft 234 outsicle the housing 270.
During normal operation of the vibrator shown in Figures 2, 3, 4 and 5, the hollow shaft 216 is rotated by motor 220. At this time, the first control shaft 234 is held stationary by the worm 276 which engages the worm wheel 278 preventing it from rotating when the motor 274 is de-energized, and the second control shaft 238 is secured to the standard 264 and is always stationary. Thus, the bevel gear 244 on shaft 216 rotates gear 256 which, since gear 240 does not rotate, effects a rotation of the gearbox frame 230 about axis C. The rotation o the gear box frame 230 with respect to the stationary gear 236 causes gear 252 to rotate, rotating gear 242. Thus, the shaft 212 rotates in unison with hollow shaft 216. me eccentric weights 214 and 226 on shaft 212 and hollow shaft 216, respectively, are rotating with the shaft and hollow shat, and are posi-tioned relative to each other as shown in Figures 8 and 9 to produce the maximum eccentricity and the maximum stro~e of the vibrator.
I~ it is desired to reduce the stroke of the vibrator (wh:ich can be done while the vibrator continues lC~73~)3 -to run), the motor 274 is momentarily energized to rotate worm 276 and worm wheel 278, to rotate con-trol shaft 234.
Since bevel gear 240 remains stationary, the rotation of control shaft 234, and bevel gear 236 thereon, changes the relative angular position of bevel gears 242 and 244 (which continue to rotate) and hence the relative angular positions of the first and second eccentric members. The pointer 280 indicates the amount of rotation o~ shaft 234, and hence the extent of eccentricity in the vibrator.
Although the best mode contemplated for carrying out the present invention has been herein shown and described, it will be apparent that modification and varia-tion may be made without departing from what is xegarded to be the subject matter of the invention~
JFV:cds '.~ ' `,~ ' . ' ,, , ~ .
- In brief, in accordance with the present invention, there is pro-vided a vibrator having a first pair of concentrlc shafts on an axis of rotation, each of said shafts having eccentric weights connected thereto to define with said shafts eccentric elements, characterized by a second pair of concentric shafts on said axis, a first differential bevel gear train between one shaft in said first pair of shafts and one shaft in said second pair of shafts, and a second differential gear train between the other shaft in said first pair of shafts and the other shaft in said other pair of shafts, means to effect relative rotation between the shafts of said second pair of shafts to change the phase relation between said eccentric weights.
BRIEF DESCRIPTION OF THE DRAWINGS
` Figure 1 is a view in perspective of an electromechanical vibrating feeder incorporating the vibrator of the present invention.
Figure 2 is a side view, partially in section, showing the vibrator of the present invention.
Figure 3 is a view taken on the lines 3-3 of Figure 2.
,---.'~' .....
.: .
7'73~3 Figures 4 and 5 are enlarged views, taken as the view of Figure 2, of portions of the vibrator of Figure 2.
DESCRIPTION OF THE PREFERRED EMBODIMENT
There is shown in F:igure 1 a vibrator 10 con-structed in accordance with the present invention. The vibrator 10 is shown, for illustrative purposes, as the driving force of a vibratory ~eeder 12 which is designed to receive material at an input end 12a and discharge material at a discharge end 12b. The vibrator of the pre-sent invention can be used to drive other machines, such as vibratory screens or, in fact, any equipmen-t which it is desired to vibrate.
It will be understood by those skilled in the art that the feeder 12 includes a trough 14 which is suspended by springs 16 from an overhead support. The feeder has a drive housing 15 which is rigidly connected to trough 14, and the housing 15 has spaced walls 15a, 15b. The vibrator 10 is mounted by means of springs 18 between the walls 15a, 15b to form with the trough a two mass, spring coupled, electromechanical vibratory feeder.
As shown in Figures 2 and 3, a vibrator housing 200 has side walls 202, 204 with openings therein lying on an axis C. Bearings 206, 208 are mounted in the openings in the walls 202, 204, respectively.
A first eccentric element 210 comprises a shaft 212 and a weight 214 secured to shaft 212. The weight 214 has a center of gra~ity spaced from the longitudinal rota-tional axis of the shaft, axis C, and constitutes an eccentric weight which renders the element 210 made up of weight 214 and shaft 212 eccen-tric.
A hollow shaft 216 has two portions: a first portion 216a mounted over shaft 212 and rotatably supported on axis C by bearing 206, and a second portion 216b S mounted over the end of shaft 212 and rotatably supported on axis C by bearing 208. The outer end of shaft porkion 216b extends outside the housing 200 and receives thereon a pulley 218. ~n electric motor 220 is mounted on the housing, and a pulley 222 is mounted on the motor drive shaft 220a. A belt 224 is received over pulleys 218, 222 ~or rotation of shaft portion 216b on axis C by the motor.
~ An eccentric weight 226 is mounted on hollow - shaft 216. The weight 226 has a first portion 226a which lS is keyed to first hollow shaft portion 216a, and has a second portion 226b which is keyed to second shaft portion 216b. The weight 226 also has an intermediate arcuate portion 226c which connects the weight portions 226a and 226b. Thus, when hollow shaft portion 216b is driven by motor 220, the torque is transmitted through weight 226 to drive hollow shaft portion 216a. The weight 226, like weight 214, has a center of gravity spaced from the axis C of rotation of hollow shaft 216 to constitute an eccen-tric weight. Thus, the hollow shaft 216 and weight 226, which is keyed to the hollow shaft, constitutes a second eccentric element 227. Both shaft 212 and hollow shaft 216 terminate at a gearbox 228.
The gearbox 228, as shown in Figure 4, has a housing or frame 230 which is rotatably supported, at one end, on a bearing 232 received on the end of hollow ..,~,~
73~)3 shaft portion 216a. A first control member 234 consists of a shaf-t having a first control bevel gear 236 secured to its inner end. A second control member 238, which is in the form of a hollow shaft, has a second control bevel gear 240 secured to its inner end. Shaft 234 is rota tably received in hollow shaft 238, which is ~ournaled in bearing 241. A first drive bevel gear 242 is secured to the outer end of shaft 212, and a second drive bevel gear 244 is secured to the outer end of hoLlow shaft portion 216a.
An intermediate shaft 246 is mounted trans-versely in the gearbox frame and is ]ournaled in bearings 248, 250 therein. A first intermediate hevel gear 252 is secured on shaft 246 and forms, with bevel gears 236, 242, a gear train 254 between shaft 212 (and hence the first eccentric element 210 of which shaft 212 is a part) and the first control member, or shaft, 234. A second ~` intermediate bevel gear 256 is rotatably mounted on bearings 258, 260 (which are received on intermediate shaft 246~ for rotation relative to shaft 246. The second inter-mediate bevel gear forms a gear train 262 with bevel gears 240, 244, between hollow shaft portion 216a (and hence the second eccentric element 227) and the second control member, or hollow shaft, 238.
Hollow shaft 238 is supported, outside the gear-box 228, by a standard 264 which is connected by bracket 266 to vibrator housing 200 (see Figure 5).
; Apparatus, indicated generally at 268 as shown in Figure 5, is provided outside the gearbox 228 to effect relative rotation between the first control member (shaft .:
,~
`'; ~
.~ ' ' . ~ . ~ .
` " ' ~ ` `,~ ~. ' ~ 0~73V3 234) and the second control member ~hollow shaft 238). The apparatus includes a housing 270 mounted on bracket 266, and bearing 272 mounted in the housing to receive the shaft 234. The hollow shaft 238 terminates at standard 264 (short of housing 270) and is secured to the standard so that gear 240 (which is secured to shaft 238) is always stationary. A motor 274 (when energized) drives a worm 276 which rotates a worm wheel 278 secured to shaft 234.
A pointer 280 is mounted on the end of shaft 234 outsicle the housing 270.
During normal operation of the vibrator shown in Figures 2, 3, 4 and 5, the hollow shaft 216 is rotated by motor 220. At this time, the first control shaft 234 is held stationary by the worm 276 which engages the worm wheel 278 preventing it from rotating when the motor 274 is de-energized, and the second control shaft 238 is secured to the standard 264 and is always stationary. Thus, the bevel gear 244 on shaft 216 rotates gear 256 which, since gear 240 does not rotate, effects a rotation of the gearbox frame 230 about axis C. The rotation o the gear box frame 230 with respect to the stationary gear 236 causes gear 252 to rotate, rotating gear 242. Thus, the shaft 212 rotates in unison with hollow shaft 216. me eccentric weights 214 and 226 on shaft 212 and hollow shaft 216, respectively, are rotating with the shaft and hollow shat, and are posi-tioned relative to each other as shown in Figures 8 and 9 to produce the maximum eccentricity and the maximum stro~e of the vibrator.
I~ it is desired to reduce the stroke of the vibrator (wh:ich can be done while the vibrator continues lC~73~)3 -to run), the motor 274 is momentarily energized to rotate worm 276 and worm wheel 278, to rotate con-trol shaft 234.
Since bevel gear 240 remains stationary, the rotation of control shaft 234, and bevel gear 236 thereon, changes the relative angular position of bevel gears 242 and 244 (which continue to rotate) and hence the relative angular positions of the first and second eccentric members. The pointer 280 indicates the amount of rotation o~ shaft 234, and hence the extent of eccentricity in the vibrator.
Although the best mode contemplated for carrying out the present invention has been herein shown and described, it will be apparent that modification and varia-tion may be made without departing from what is xegarded to be the subject matter of the invention~
JFV:cds '.~ ' `,~ ' . ' ,, , ~ .
Claims (7)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A vibrator having a first pair of concentric shafts on an axis of rotation, each of said shafts having eccentric weights connected thereto to define with said shafts eccentric elements, characterized by a second pair of concentric shafts on said axis, a first differential bevel gear train between one shaft in said first pair of shafts and one shaft in said second pair of shafts, and a second differential gear train between the other shaft in said first pair of shafts and the other shaft in said other pair of shafts, means to effect relative rotation between the shafts of said second pair of shafts to change the phase relation between said eccentric weights.
2. The vibrator of claim 1 including means to hold one of said shafts of said second pair of shafts stationary and means including a motor to rotate the other of said shafts.
3. The vibrator of claim 2 including a worm driven by said motor and a worm wheel secured to said other shaft.
4. The mechanism of claim 1 including a frame, means to mount said frame for rotation about said axis, and means to mount said first and second bevel gear trains in said frame.
5. The mechanism of claim 4 wherein each of said pair of concentric shafts comprises a first shaft and a hollow shaft rotatably mounted on said first shaft.
6. The mechanism of claim 5 wherein said first differential. bevel gear train includes a first bevel gear on the first shaft of each pair of concentric shafts and includes a second bevel gear on the hollow shaft of each pair of concentric shafts.
7. The mechanism of claim 6 wherein each of said bevel gear trains consists of three continuously meshing bevel gears and wherein means is provided to mount the intermediate gear of each gear train in the frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA334,260A CA1089254A (en) | 1976-09-01 | 1979-08-22 | Vibrator with eccentric weights |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US71963476A | 1976-09-01 | 1976-09-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1077303A true CA1077303A (en) | 1980-05-13 |
Family
ID=24890774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA282,188A Expired CA1077303A (en) | 1976-09-01 | 1977-07-06 | Vibrator with eccentric weights |
Country Status (11)
| Country | Link |
|---|---|
| JP (1) | JPS5332582A (en) |
| AU (1) | AU512571B2 (en) |
| BR (1) | BR7705732A (en) |
| CA (1) | CA1077303A (en) |
| DE (1) | DE2738794C3 (en) |
| ES (1) | ES462057A1 (en) |
| FR (3) | FR2374094A1 (en) |
| GB (2) | GB1583787A (en) |
| MX (1) | MX144791A (en) |
| NL (1) | NL7709070A (en) |
| ZA (1) | ZA774056B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3107238A1 (en) * | 1981-02-26 | 1982-09-09 | Netter, Jean, 6200 Wiesbaden | VIBRATOR |
| US4454780A (en) * | 1981-07-06 | 1984-06-19 | Ingersoll-Rand Company | Vibratory mechanism |
| FR2529104A2 (en) * | 1981-12-08 | 1983-12-30 | Demler Sa Ets | Vibrator for table for cement moulding - includes fixed eccentric and loose concentric masses supported on shaft |
| US4766771A (en) * | 1984-11-15 | 1988-08-30 | Outboard Marine Corporation | Shaking apparatus |
| DE4007005C1 (en) * | 1990-03-06 | 1991-10-17 | Sulzer-Escher Wyss Gmbh, 7980 Ravensburg, De | |
| DE29614122U1 (en) * | 1996-08-14 | 1996-09-26 | Bauer Spezialtiefbau Gmbh, 86529 Schrobenhausen | Vibration exciter |
| DE19735268C2 (en) * | 1997-08-14 | 2002-04-18 | Karl Rekers Maschinen Und Stah | Vibration generator for in particular vibrating stations of stone molding machines |
| DE102008050576A1 (en) * | 2008-10-06 | 2010-04-08 | Bomag Gmbh | Device for generating a circular oscillation or a directed oscillation with continuously adjustable oscillation amplitude or exciter force |
| US9101959B2 (en) | 2012-04-27 | 2015-08-11 | Martin Engineering Company | Vibratory device with repositionable weights and method of extending the useful life of vibratory devices |
| CL2013001014A1 (en) * | 2013-04-12 | 2013-09-06 | Vulco Sa | Vibrating device comprising a supporting structure with a base and two independent lubricated cavities and a plurality of elongated elements, the device also comprises a first and second rotary axis, a first and second eccentric mass, adjustable masses and is capable of coupling with other devices the same type. |
| JP6294178B2 (en) * | 2014-07-10 | 2018-03-14 | ゼンウェルオーダード株式会社 | Article transport feeder |
Family Cites Families (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE445423A (en) * | ||||
| DE339959C (en) * | 1920-07-13 | 1921-08-24 | Hugo Mueller | Wind sweep |
| US1500988A (en) * | 1921-06-22 | 1924-07-08 | Det Tekniske Forsogsaktieselsk | Mechanism for converting rotary into reciprocatory motion |
| DE433595C (en) * | 1924-03-07 | 1926-09-18 | Zwietusch E & Co Gmbh | Circuit arrangement for telephone systems with independent operation |
| DE618467C (en) * | 1929-08-06 | 1935-09-09 | Losenhausenwerk Duesseldorfer | Process and device for examining finished technical structures, such as bridges, ships, towers, in their state of use with regard to their dynamic behavior |
| DE580487C (en) * | 1930-05-29 | 1933-07-12 | Losenhausenwerk Duesseldorfer | Device for eliminating or damping vibrations of all kinds |
| DE565762C (en) * | 1930-07-12 | 1933-04-11 | Fried Krupp Grusonwerk Akt Ges | Vibration generator for reciprocating devices |
| DE560921C (en) * | 1930-12-07 | 1932-10-08 | Fried Krupp Grusonwerk Akt Ges | Vibration generator for devices moving back and forth |
| DE629000C (en) * | 1933-07-28 | 1936-04-21 | J M Voith Fa | Shaking device for rotating machine parts, such as breast rolls of paper machines and the like. like |
| DE623892C (en) * | 1933-11-14 | 1936-01-07 | J M Voith Maschinenfabrik | Shaking device for sieves u. like |
| US2366033A (en) * | 1942-08-21 | 1944-12-26 | Robert L Johnstone | Vibrator |
| DE801793C (en) * | 1949-01-01 | 1951-01-22 | Losenhausenwerk Duesseldorfer | Automatic brake in the case of imbalance shakers |
| DE822979C (en) * | 1949-07-14 | 1951-11-29 | Hans Lorenz Dr Ing | Automotive compaction machine |
| DE870769C (en) * | 1950-11-04 | 1953-03-16 | Bosch Gmbh Robert | Vibration exciters, especially Ruettler |
| CH321239A (en) * | 1954-04-23 | 1957-04-30 | Lehmann Pottkaemper Gerhard | Process for stepless regulation of the balance force of vibration generators and vibration generators for carrying out the process |
| DE1072191B (en) * | 1954-07-21 | |||
| US2852946A (en) * | 1954-10-04 | 1958-09-23 | Petrin Frank | Device for relieving starting load on vibrators driven by electric motor |
| DE1841635U (en) * | 1958-01-02 | 1961-11-16 | Kisha Seizo Kaisha Ltd | VIBRATION DEVICE. |
| DE1255592B (en) * | 1962-01-10 | 1967-11-30 | Buckau Wolf Maschf R | Self-propelled vibrating compressor |
| DE1246294B (en) * | 1962-12-04 | 1967-08-03 | Zd Y V I Plzen Narodni Podnik | Device for achieving an imbalance on a rotating shaft |
| DE1245188B (en) * | 1963-04-10 | 1967-07-20 | Karl Heinz Wehmeier Dr Ing | Unbalance vibration motor with adjustable vibration force during operation |
| DE1483396A1 (en) * | 1965-08-27 | 1969-03-13 | Gen Mills Inc | Vibrator for work machine |
| DE1558841A1 (en) * | 1967-05-31 | 1970-04-23 | Wilhelm Joest | Unbalance exciter |
| DE1301162B (en) * | 1968-04-26 | 1969-08-14 | Losenhausen Maschb Ag | Vibration generator designed as a directional vibrator with two alternatively switchable vibration directions |
| DE2008055C3 (en) * | 1970-02-21 | 1978-06-15 | Guenther Weber Herstellung Und Vertrieb Von Baumaschinen, 5929 Rueckershausen | Unbalance vibrators, in particular for soil compactors |
| FR2294766A1 (en) * | 1974-07-05 | 1976-07-16 | Peugeot & Renault | Vibration generator permitting complete suppression of vibrations - has sliders inside cylinders rotating in housing with vertical travel |
-
1977
- 1977-07-06 CA CA282,188A patent/CA1077303A/en not_active Expired
- 1977-07-06 ZA ZA00774056A patent/ZA774056B/en unknown
- 1977-07-11 AU AU26897/77A patent/AU512571B2/en not_active Expired
- 1977-07-19 MX MX169901A patent/MX144791A/en unknown
- 1977-08-17 NL NL7709070A patent/NL7709070A/en not_active Application Discontinuation
- 1977-08-23 GB GB35191/77A patent/GB1583787A/en not_active Expired
- 1977-08-23 GB GB23091/79A patent/GB1583788A/en not_active Expired
- 1977-08-29 DE DE2738794A patent/DE2738794C3/en not_active Expired
- 1977-08-29 BR BR7705732A patent/BR7705732A/en unknown
- 1977-08-31 FR FR7726483A patent/FR2374094A1/en active Pending
- 1977-09-01 JP JP10426477A patent/JPS5332582A/en active Granted
- 1977-09-01 ES ES462057A patent/ES462057A1/en not_active Expired
-
1978
- 1978-03-15 FR FR7807452A patent/FR2374095A1/en not_active Withdrawn
- 1978-03-15 FR FR7807453A patent/FR2374096A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| BR7705732A (en) | 1978-05-30 |
| GB1583788A (en) | 1981-02-04 |
| DE2738794C3 (en) | 1981-12-24 |
| JPS5332582A (en) | 1978-03-27 |
| GB1583787A (en) | 1981-02-04 |
| ZA774056B (en) | 1978-05-30 |
| MX144791A (en) | 1981-11-23 |
| FR2374096A1 (en) | 1978-07-13 |
| NL7709070A (en) | 1978-03-03 |
| DE2738794A1 (en) | 1978-03-02 |
| JPS5628803B2 (en) | 1981-07-04 |
| DE2738794B2 (en) | 1980-10-23 |
| ES462057A1 (en) | 1978-07-01 |
| FR2374095A1 (en) | 1978-07-13 |
| AU2689777A (en) | 1979-01-18 |
| FR2374094A1 (en) | 1978-07-13 |
| AU512571B2 (en) | 1980-10-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |