CN111059231A - Chain transmission device of sound wave vibration exciter - Google Patents
Chain transmission device of sound wave vibration exciter Download PDFInfo
- Publication number
- CN111059231A CN111059231A CN202010027810.1A CN202010027810A CN111059231A CN 111059231 A CN111059231 A CN 111059231A CN 202010027810 A CN202010027810 A CN 202010027810A CN 111059231 A CN111059231 A CN 111059231A
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- chain
- chain wheel
- adjusting
- wheel
- shaft
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 19
- 238000009434 installation Methods 0.000 claims abstract description 6
- 238000005553 drilling Methods 0.000 description 3
- 230000005284 excitation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Images
Classifications
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- 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
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/06—Gearings for conveying rotary motion by endless flexible members with chains
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- 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
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H7/10—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley
- F16H7/12—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley
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- 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
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H2007/0802—Actuators for final output members
- F16H2007/0806—Compression coil springs
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- 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
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H2007/0876—Control or adjustment of actuators
- F16H2007/088—Manual adjustment
-
- 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
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H2007/0889—Path of movement of the finally actuated member
- F16H2007/0891—Linear path
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The invention relates to the technical field of chain transmission, in particular to a chain transmission device of a sound wave vibration exciter. The invention provides a chain transmission device of a sound wave vibration exciter, which comprises a chain, and a driving chain wheel, a vibrating chain wheel A, a chain distance adjusting device, a vibrating chain wheel B, a driven chain wheel, a tensioning device and an installation bottom plate which are sequentially arranged; the second adjusting chain wheel can be movably adjusted in the direction vertical to the connecting line of the centers of the vibrating wheels through the chain distance adjusting device, so that the phase difference between the two vibrating shafts is finely adjusted; the whole chain is tensioned by the tensioning device, and the vibration during high-speed transmission is favorably eliminated.
Description
Technical Field
The invention relates to the technical field of chain transmission, in particular to a chain transmission device of a sound wave vibration exciter.
Background
The acoustic power head drilling machine completes drilling operation by utilizing rotation of a drill bit and axial high-frequency vibration, can liquefy soil during drilling, and reduces disturbance to surrounding geology. When mechanical excitation is adopted, the vibration exciter consists of two groups of eccentric shafts with the same form, size, weight and eccentricity. In the aspect of the driving technology of the eccentric shaft, two modes of double-drive synchronization and single-drive synchronization are available. Finally, the rotation directions of the two eccentric shafts are opposite, the rotation speeds of the two eccentric shafts are the same, centrifugal forces on the eccentric shafts are mutually offset in the horizontal direction, and component forces in the vertical direction are superposed to form sinusoidal vibration. The vibration exciter has higher requirement on the consistency of the eccentric phases of the two eccentric shafts. Because the chain has a fixed pitch and the vibration chain wheel is usually connected with the eccentric shaft in a key mode, the phase difference of the two shafts can only be adjusted in a stepped mode to approximately meet the design requirement, and fine adjustment of the phase angle is inconvenient.
Disclosure of Invention
The invention aims to provide a chain transmission device of a sound wave vibration exciter, which can meet the requirement of accurate synchronization of double shafts under the condition of high-frequency vibration.
In order to achieve the purpose, the invention provides the following technical scheme:
a chain transmission device of a sound wave vibration exciter comprises a chain, and a driving chain wheel, a vibration chain wheel A, a chain distance adjusting device, a vibration chain wheel B, a driven chain wheel, a tensioning device and an installation bottom plate which are sequentially arranged; the driving chain wheel, the vibrating chain wheel A, the chain distance adjusting device, the vibrating chain wheel B, the driven chain wheel and the tensioning device are all arranged on the mounting bottom plate;
the chain distance adjusting device comprises a first adjusting chain wheel, a second adjusting chain wheel and a chain wheel seat; the first adjusting chain wheel and the second adjusting chain wheel are both positioned between the vibrating chain wheel A and the vibrating chain wheel B; the first adjusting chain wheel and the second adjusting chain wheel are meshed with the tight side of the chain to form a shape of a Chinese character-'; the second adjusting chain wheel is positioned on the chain wheel seat; the chain wheel seat is connected with the mounting bottom plate through bolts; at least one bolt connecting hole in the chain wheel seat and the mounting bottom plate is a long hole;
the tensioning device comprises two guide wheels, a pressing wheel shaft, a rotating arm, a guide seat, a rotating shaft, a guide shaft and a spring; the two guide wheels are positioned on the same side of the loose edge of the chain and are in contact with the chain; the pinch roller is positioned between the two guide wheels on the loose edge of the chain and is opposite to the other side of the guide wheels; the pinch roller is arranged on the rotating arm through the pinch roller shaft; the rotating arm is fixed on the mounting bottom plate through the rotating shaft; the guide shaft penetrates through the rotating arm and the guide seat, one end of the guide shaft is fixedly connected with any one of the rotating arm or the guide seat, and the other end of the guide shaft is in sliding connection; the guide seat is fixed on the mounting bottom plate; the spring is arranged between the guide seat and the rotating arm, and the rotating arm is pressed towards one side of the chain by means of elastic force.
Preferably, the first adjusting sprocket comprises a sprocket shaft, a bearing and a sprocket; the first adjusting chain wheel is installed on the installation bottom plate through the chain wheel shaft and the bearing.
Preferably, the second adjusting sprocket comprises a sprocket seat, a sprocket shaft, a bearing and a bolt; the second adjusting chain wheel is installed on the chain wheel seat through the chain wheel shaft and the bearing.
Preferably, the guide wheel is a smooth wheel.
Compared with the prior art, the invention has the following beneficial effects:
the vibration chain wheel A and the vibration chain wheel B are respectively driving chain wheels of vibration shafts of two vibration exciters; according to the invention, the chain pitch adjusting device is arranged, and the second adjusting chain wheel is arranged on the chain wheel seat, so that the second adjusting chain wheel can move and adjust in a small range in a direction vertical to the central connecting line of the vibrating chain wheel, the length of the chain between the two vibrating chain wheels is further finely adjusted, and the micro adjustment of the phase angle difference value of the two vibrating shafts can be realized. Two adjusting sprocket all lie in vibration sprocket central line on, can guarantee that the chain all has great cornerite on vibration sprocket A, vibration sprocket B, and when carrying out the adjustment of small-range removal in the position of second adjusting sprocket, adjacent vibration sprocket B cornerite also can not have obvious reduction.
According to the invention, the loose edge chain is automatically tensioned through the elastic tensioning device, and a plurality of supports are provided for the loose edge chain, so that the loose edge chain is divided into a plurality of small sections, and the vibration during high-speed transmission can be eliminated.
Drawings
Fig. 1 is a structural schematic diagram of an exciter chain transmission.
In the figure 1, 1 is a driving chain wheel, 2 is a vibrating chain wheel A, 3 is a first adjusting chain wheel, 4 is a second adjusting chain wheel, 5 is a vibrating chain wheel B, 6 is a driven chain wheel, 7 is a chain, 8 is a guide wheel, 9 is a tensioning device, and 10 is a mounting base plate.
FIG. 2 is a schematic view of an adjusting sprocket.
In fig. 2, 41 is a chain wheel seat, 42 is a chain wheel shaft, 43 is a bearing, 44 is a bolt, 10 is a mounting base plate.
Fig. 3 is a schematic view of a tensioner.
In fig. 3, 91, press wheel, 92, rotating arm, 93, rotating shaft, 94, guide shaft, 95, guide seat, 96, press wheel shaft, 97, spring and 10, mounting base plate.
Detailed Description
The technical scheme of the invention is clearly and completely described below by combining the attached drawings.
As shown in fig. 1 to 3, the invention provides a chain transmission device of a sound wave exciter, comprising a chain 7, and a driving sprocket 1, a vibrating sprocket a2, a chain pitch adjusting device, a vibrating sprocket B5, a driven sprocket 6, a tensioning device 9 and a mounting base plate 10 which are arranged in sequence; the driving sprocket 1, the vibrating sprocket A2, the chain pitch adjusting device, the vibrating sprocket B5, the driven sprocket 6 and the tensioning device 9 are all mounted on the mounting base plate 10;
the chain distance adjusting device comprises a first adjusting chain wheel 3, a second adjusting chain wheel 4 and a chain wheel seat 41; the first and second timing sprockets 3 and 4 are both located between the oscillating sprocket A2 and the oscillating sprocket B5; the first adjusting chain wheel 3 and the second adjusting chain wheel 4 are meshed with the tight side of the chain 7 in a shape of a Chinese character-'; the second adjusting chain wheel 4 is positioned on the chain wheel seat 41; the chain wheel seat 41 is connected with the mounting base plate 10 through a bolt 44; at least one bolt connecting hole in the chain wheel seat 41 and the mounting base plate 10 is a long hole;
the tensioning device 9 comprises two guide wheels 8, a pressing wheel 91, a pressing wheel shaft 96, a rotating arm 92, a guide seat 95, a rotating shaft 93, a guide shaft 94 and a spring 97; the two guide wheels 8 are positioned on the same side of the loose edge of the chain 7 and are in contact with the chain 7; the pinch roller 91 is positioned between the two guide wheels 8 on the loose edge of the chain 7 and is opposite to the other side of the guide wheels; the pressing wheel 91 is mounted on the rotating arm 92 through the pressing wheel shaft 96; the rotating arm 92 is fixed on the mounting base plate 10 through the rotating shaft 93; the guide shaft 94 penetrates through the rotating arm 92 and the guide seat 95, one end of the guide shaft is fixedly connected with any one of the rotating arm 92 or the guide seat 95, and the other end of the guide shaft is in sliding connection; the guide seat 95 is fixed on the installation bottom plate 10; the spring 97 is provided between the guide holder 95 and the rotating arm 92, and presses the rotating arm 92 toward the chain 7 by an elastic force.
In the present invention, the first adjusting sprocket 3 is freely rotatable about the sprocket shaft. The second adjusting chain wheel 4 can rotate freely around the chain wheel shaft 42 and can also move in translation along with the chain wheel seat 41
As shown in fig. 3, in the present invention, when the guide shaft 94 allows the rotating arm 92 to rotate around the rotating shaft 93, the guide shaft can move relative to the guide seat 95 without being locked, and the connection relationship of the guide shaft 94 is maintained. The pinch roller 91 is mounted on the rotating arm 92 and can freely rotate around the pinch roller shaft 96; the rotating arm 92 can rotate freely around the rotating shaft 93 under the action of the elastic force of the spring 97, and presses the pressing wheel 91 against the chain 7.
As shown in fig. 2, the first adjusting sprocket 3 includes a sprocket shaft, a bearing, and a sprocket as one embodiment of the present invention; the first adjusting sprocket 3 is mounted on the mounting base plate 10 through the sprocket shaft and the bearing.
As shown in fig. 2, as an embodiment of the present invention, the second adjusting sprocket 4 includes a sprocket holder 41, a sprocket shaft 42, a bearing 43, and a bolt 44; the second adjusting sprocket 4 is mounted on the sprocket seat 41 via the sprocket shaft 42 and the bearing 43.
As an embodiment of the present invention, the guide wheel 8 is a smooth wheel.
In the invention, the guide wheel 8 plays a role in positioning, the pinch roller 91 automatically compresses the chain 7 by using the elastic force of the spring 97, and the chain 7 is always kept in a tensioned state under the positioning action of the guide wheel 8.
The invention also provides a transmission method of the acoustic vibration exciter chain transmission device, which comprises the following steps:
in the present invention, the oscillating sprockets a2 and B5 are driving sprockets of two oscillating shafts. The chain 7 starts from the driving chain wheel 1, drives the vibrating chain wheel A2 and the vibrating chain wheel B5, and returns back to the driving chain wheel 1 through the driven chain wheel 6, so that a closed chain transmission system is formed. By the transmission system, the rotation directions of the vibrating chain wheel A2 and the vibrating chain wheel B5 are opposite, and the rotating speeds are the same. According to the transmission example provided by the attached drawing, the motor is adopted to drive the driving chain wheel to rotate anticlockwise, so that the vibration exciter can be driven to work.
When the driving sprocket 1 rotates counterclockwise, the upper part between the vibrating sprocket A2 and the vibrating sprocket B5 forms a chain tight edge. When the eccentric phase difference of the two vibration shafts needs to be adjusted, the adjusting direction of the second adjusting chain wheel 4 is determined according to the positive difference or the negative difference of the phase angle. The connecting bolts 44 of the sprocket seat 41 are loosened to move the sprocket seat 41 vertically upward or downward. Because chain 7 length between two vibration axles takes place the slight change, and the vibration axle is driven by sprocket 7 again, therefore chain 7 will drive the vibration axle and do the slight deflection, realizes the adjustment of phase difference, satisfies the same phase demand of sound wave excitation to the vibration axle.
When the driving sprocket rotates counterclockwise, a loose edge of the chain is formed at the lower portion between the vibrating sprocket A2 and the vibrating sprocket B5. By using the tensioning device 9 of the invention, the pinch roller 91 compresses the chain 7 by means of elastic force to realize automatic tensioning, and the tensioning length can be adjusted by adjusting the pre-pressure of the spring 97.
Claims (4)
1. A chain transmission device of a sound wave vibration exciter is characterized by comprising a chain, and a driving chain wheel, a vibration chain wheel A, a chain distance adjusting device, a vibration chain wheel B, a driven chain wheel, a tensioning device and an installation bottom plate which are sequentially arranged; the driving chain wheel, the vibrating chain wheel A, the chain distance adjusting device, the vibrating chain wheel B, the driven chain wheel and the tensioning device are all arranged on the mounting bottom plate;
the chain distance adjusting device comprises a first adjusting chain wheel, a second adjusting chain wheel and a chain wheel seat; the first adjusting chain wheel and the second adjusting chain wheel are both positioned between the vibrating chain wheel A and the vibrating chain wheel B; the first adjusting chain wheel and the second adjusting chain wheel are meshed with the tight side of the chain to form a shape of a Chinese character-'; the second adjusting chain wheel is positioned on the chain wheel seat; the chain wheel seat is connected with the mounting bottom plate through bolts; at least one bolt connecting hole in the chain wheel seat and the mounting bottom plate is a long hole;
the tensioning device comprises two guide wheels, a pressing wheel shaft, a rotating arm, a guide seat, a rotating shaft, a guide shaft and a spring; the two guide wheels are positioned on the same side of the loose edge of the chain and are in contact with the chain; the pinch roller is positioned between the two guide wheels on the loose edge of the chain and is opposite to the other side of the guide wheels; the pinch roller is arranged on the rotating arm through the pinch roller shaft; the rotating arm is fixed on the mounting bottom plate through the rotating shaft; the guide shaft penetrates through the rotating arm and the guide seat, one end of the guide shaft is fixedly connected with any one of the rotating arm or the guide seat, and the other end of the guide shaft is in sliding connection; the guide seat is fixed on the mounting bottom plate; the spring is arranged between the guide seat and the rotating arm, and the rotating arm is pressed towards one side of the chain by means of elastic force.
2. The acoustic exciter chain drive of claim 1, wherein the first adjusting sprocket comprises a sprocket shaft, a bearing and a sprocket; the first adjusting chain wheel is installed on the installation bottom plate through the chain wheel shaft and the bearing.
3. The acoustic exciter chain drive according to claim 1, wherein the second adjusting sprocket comprises a sprocket seat, a sprocket shaft, a bearing and a bolt; the second adjusting chain wheel is installed on the chain wheel seat through the chain wheel shaft and the bearing.
4. Chain drive of acoustic exciter according to any of claims 1 to 3, characterized in that the guide wheel is a plain wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010027810.1A CN111059231B (en) | 2020-01-10 | Chain transmission device of acoustic wave vibration exciter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010027810.1A CN111059231B (en) | 2020-01-10 | Chain transmission device of acoustic wave vibration exciter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111059231A true CN111059231A (en) | 2020-04-24 |
| CN111059231B CN111059231B (en) | 2024-10-29 |
Family
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06104524B2 (en) * | 1990-01-29 | 1994-12-21 | 株式会社東京機械製作所 | Impeller phase adjusting device in impeller drive device for folding machine of rotary press |
| CN200996444Y (en) * | 2006-11-15 | 2007-12-26 | 辽宁大族冠华印刷科技股份有限公司 | Phase adjusting mechanism with chain gear transmission |
| CN207131815U (en) * | 2017-08-24 | 2018-03-23 | 武汉钢铁集团湖北华中重型机械制造有限公司 | A kind of adjustable roller chain tension means |
| CN211599423U (en) * | 2020-01-10 | 2020-09-29 | 中国建筑科学研究院有限公司建筑机械化研究分院 | Chain transmission device of sound wave vibration exciter |
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06104524B2 (en) * | 1990-01-29 | 1994-12-21 | 株式会社東京機械製作所 | Impeller phase adjusting device in impeller drive device for folding machine of rotary press |
| CN200996444Y (en) * | 2006-11-15 | 2007-12-26 | 辽宁大族冠华印刷科技股份有限公司 | Phase adjusting mechanism with chain gear transmission |
| CN207131815U (en) * | 2017-08-24 | 2018-03-23 | 武汉钢铁集团湖北华中重型机械制造有限公司 | A kind of adjustable roller chain tension means |
| CN211599423U (en) * | 2020-01-10 | 2020-09-29 | 中国建筑科学研究院有限公司建筑机械化研究分院 | Chain transmission device of sound wave vibration exciter |
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