CN203050128U - Noiseless concrete vibrating bar - Google Patents
Noiseless concrete vibrating bar Download PDFInfo
- Publication number
- CN203050128U CN203050128U CN 201320001420 CN201320001420U CN203050128U CN 203050128 U CN203050128 U CN 203050128U CN 201320001420 CN201320001420 CN 201320001420 CN 201320001420 U CN201320001420 U CN 201320001420U CN 203050128 U CN203050128 U CN 203050128U
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- CN
- China
- Prior art keywords
- noiseless
- concrete vibrating
- steel pipe
- bar
- vibrating bar
- 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 - Fee Related
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- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
Disclosed is a noiseless concrete vibrating bar. An appearance structure of the noiseless concrete vibrating bar is identical with that of a well-known common concrete vibrating bar, and an internal structure of a steel pipe bar and a vibrating theory of the noiseless concrete vibrating bar are different from those of the well-known common concrete vibrating bar. A five-arc steel sleeve is fixedly arranged on the lower portion inside the steel pipe bar of the noiseless concrete vibrating bar. After lubricating grease is added to an eccentric part, the eccentric part flexibly rotate and vibrate at high speed in the five-arc steel sleeve. No beating parts and no dry friction parts exist, and therefore voices are extremely small.
Description
(1) technical field:
The utility model relates to
Plant the building coagulation
Vibrating head particularly relates to
Plant the noiseless concrete vibration bar.
(2) background technology:
Present known general " electronic flexible axle planet immersible concrete vibrator " JG/T45-1999 (abbreviation vibrating head), noise is too big.The limit value that surpasses GB GB12523-2011 " building operations boundary ambient noise discharge standard ": night 55dB, daytime 70dB.Influence hospital, school, office, scientific research and resident's uneasiness, influence workers ' health.Why noise extra-high-speed? its structural principle is: rotated in flexible pipe by the motor-driven flexible axle.Steel pipe rod of the terminal socket of flexible pipe.Connect a steel rod (son impulses) at the end of flexible axle, get rid of to beat to knock with dry friction when in the steel pipe rod, rotating at a high speed and make the vibration of steel pipe rod.So noise is very strong.What is interesting is: when the lubricating grease that adds in the flexible pipe rotated at a high speed at flexible axle (wire rope), the steel wire spiral was urged to lubricating grease downwards in the steel pipe rod, and then noise diminishes, and vibration alleviates.Just need take maintenance apart and dry grease.
(3) summary of the invention:
Excessive at above-mentioned known concrete vibration bar noise, maintenance is the shortcoming of effort too.The design does not knock with steel rod and the dry friction steel pipe.Concrete technical scheme is: still rotated in flexible pipe by the motor-driven flexible axle.The terminal of flexible pipe connects a steel pipe rod.Its contour structures is identical with now general concrete vibration bar.But structure and the vibration principle of steel pipe rod inside are all inequality.
The design is the inwall bottom at the steel pipe rod, fixes five arc steel bushings.At the lower end of flexible shaft end screw rod of screwed connection.Screw rod lower end screw thread is installed an eccentric part and is used nut check.Need grease-added back eccentric part in five arc steel bushings, to rotate flexibly and order about vibration.So noiseless.Also can directly be rolled into five arcs to steel pipe rod bottom for one section and replace five arc steel bushings.
Flexible axle whenever rotates a circle, because the effect of eccentric part makes the big vibration of steel pipe rod once.Motor speed is 2820 rev/mins, and the big vibration of driving steel pipe rod 2820 times/minute is fluctuateed in five arc steel bushings simultaneously, trembled 5 * 2820 rev/mins=14100 times/minute.2820 times/minute+minor tremor of big vibration 14100 times/minute=16920 times/minute.
Unloaded vibration frequency: 60 seconds=282Hz of 16920 times/minute ÷.
The amplitude of big vibration: by the screw of eccentric part few adjustment the on the high side.
The amplitude of little chatter: adjusted by the recessed depth of the arc of five arc steel bushings.
(4) description of drawings:
Fig. 1 is noiseless concrete vibration bar general assembly drawing
Fig. 2 is the hypomere amplification view of Fig. 1
Fig. 3 is five arc steel bushings (A type) vertical views
Fig. 4 is five arc steel bushing (Type B) vertical views
Fig. 5 is the eccentric part elevation
Fig. 6 is the eccentric part vertical view
In Fig. 1～Fig. 6: 1. motor 2. hose plugs 3. flexible axle plugs 4. flexible axles 5. flexible pipes 6. hose couplings 7. steel pipes rods 8. flexible shaft ends 9. bearings 10. screw rods 11. 5 arc steel bushings 12. eccentric parts 13. nuts 14. screws
(5) specific embodiment
According to the embodiment of accompanying drawing, describe in detail below:
Motor (1), flexible axle (4), flexible pipe (5), hose plug (2), flexible axle plug (3), hose coupling (6), steel pipe rod (7), flexible shaft end (8) and bearing (9) all the JG/T45-1999 typical construction with general are identical, needn't give unnecessary details.
Fix five arc steel bushings (11) in the inwall bottom of steel pipe rod (7) and see Fig. 3 or Fig. 4.Also can directly be rolled into five arcs (Fig. 4) to the bottom of steel pipe rod, can save five arc steel bushings (11).
The eccentric part of installing at screw rod (10) lower end screw thread (12) is crucial, and layer of brass can be welded in its tip, two, with the loss of reducing friction.Nut during assembling (13) will be locked.Grease-added essential especially.
Unloaded vibration frequency=(2820 rev/mins+5 * 2820 rev/mins) 60 seconds=282Hz of ÷.
Unloaded peak swing: the recessed depth of arc of deviation what and five arc steel bushings (11) that can change the center screw (14) of eccentric part (12) decides.
The product classification of this " noiseless concrete vibration bar ", technical requirements, test method, check planning etc.All according to JG/T45-1999 " electronic flexible axle planet immersible concrete vibrator " standard.
Claims (2)
1. noiseless concrete vibration bar, it is characterized in that: in the inwall bottom of steel pipe rod, fix five arc steel bushings, at the lower end of flexible shaft end screw rod of screwed connection, screw rod lower end screw thread is installed an eccentric part and is used nut check, needs eccentric part flexible rotation in five arc steel bushings in grease-added back to order about vibration.
2. noiseless concrete vibration bar according to claim 1 is characterized in that: described in steel pipe rod inwall bottom, five fixing arc steel bushings also can directly be rolled into five arcs to one section of the bottom of steel pipe rod and replace five arc steel bushings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320001420 CN203050128U (en) | 2013-01-05 | 2013-01-05 | Noiseless concrete vibrating bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320001420 CN203050128U (en) | 2013-01-05 | 2013-01-05 | Noiseless concrete vibrating bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203050128U true CN203050128U (en) | 2013-07-10 |
Family
ID=48733095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320001420 Expired - Fee Related CN203050128U (en) | 2013-01-05 | 2013-01-05 | Noiseless concrete vibrating bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203050128U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259137A (en) * | 2019-07-23 | 2019-09-20 | 牟宗峰 | A kind of concrete construction vibrating mechanism |
-
2013
- 2013-01-05 CN CN 201320001420 patent/CN203050128U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259137A (en) * | 2019-07-23 | 2019-09-20 | 牟宗峰 | A kind of concrete construction vibrating mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20150105 |
|
| EXPY | Termination of patent right or utility model |