CN107975239B - Concrete vibrator - Google Patents
Concrete vibrator Download PDFInfo
- Publication number
- CN107975239B CN107975239B CN201711432306.4A CN201711432306A CN107975239B CN 107975239 B CN107975239 B CN 107975239B CN 201711432306 A CN201711432306 A CN 201711432306A CN 107975239 B CN107975239 B CN 107975239B
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- CN
- China
- Prior art keywords
- electric control
- control trolley
- base shell
- rotating shaft
- central rotating
- 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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- 238000000034 method Methods 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/06—Solidifying concrete, e.g. by application of vacuum before hardening
- E04G21/08—Internal vibrators, e.g. needle vibrators
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention provides a concrete vibrator, which comprises a rod-shaped base shell; a central rotating shaft is arranged in the base shell along the axis of the base shell and is driven to rotate by a flexible shaft outside the base shell; the central rotating shaft is provided with an electric control trolley which can only move axially, and the body of the electric control trolley forms a counterweight body of the central rotating shaft; the electric control trolley is controlled to advance by a controller outside the base shell. The vibrator can output vibration waves in a wider space range in the working process, has larger vibration amplitude, and is favorable for improving the concrete vibrating efficiency.
Description
Technical Field
The invention relates to the field of building construction tools, in particular to a concrete vibrator.
Background
In the construction process of a building, cast-in-place concrete needs to be vibrated so as to make the internal texture of the concrete uniform and eliminate internal air bubbles. The existing concrete vibrator mainly comprises a vibrating rod, an eccentric mechanism is arranged in the vibrating rod, and the eccentric mechanism is driven by a driving flexible shaft outside the vibrating rod, so that transverse vibrating mechanical waves are generated.
A common eccentric mechanism comprises a rotating shaft driven by a driving flexible shaft, wherein a balancing weight is fixed on one side of the rotating shaft along a bus, and transverse mechanical waves are generated by the rotation of the balancing weight; however, the mechanical wave form generated by the vibrator is fixed, stable energy can be transmitted only in a limited direction, the transmission range of the vibration wave is limited, and the vibration amplitude is limited, so that the vibration efficiency is limited.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a concrete vibrator, which can output vibration waves in a wide spatial range during operation, has a large vibration amplitude, and is advantageous for improving the concrete vibrating efficiency.
The technical scheme adopted by the invention for solving the technical problems is as follows: the concrete vibrator comprises a rod-shaped base shell; a central rotating shaft is arranged in the base shell along the axis of the base shell and is driven to rotate by a flexible shaft outside the base shell; the central rotating shaft is provided with an electric control trolley which can only move axially, and the body of the electric control trolley forms a counterweight body of the central rotating shaft; the electric control trolley is controlled to advance by a controller outside the base shell.
Preferably, the central rotating shaft is provided with an axially extending C-shaped steel chute, and wheels of the electric control trolley are restrained in the chute.
Preferably, the wheels of the electric control trolley are crawler-type wheels, and the crawler of the electric control trolley is composed of a rubber belt; the driving motor of the electric control trolley is a stepping motor capable of rotating forward and backward, and the wheel cannot rotate under the action of external force in a non-working state; therefore, after the driving motor stops working, the electric control trolley can be stabilized at a set position through large-area friction between the crawler belt and the sliding groove.
Preferably, a permanent magnet is further arranged in the electric control trolley, a solenoid is further sleeved outside the permanent magnet, and a magnetic field generated by the solenoid is offset with a magnetic field of the permanent magnet in a power-on state, so that the magnetic field intensity of the whole formed by the permanent magnet and the solenoid tends to zero; therefore, when the electric control trolley needs to move, the solenoid is switched on, so that the electric control trolley and the central rotating shaft have smaller friction force, and the electric control trolley is favorable for moving; when the electric control trolley needs to be stabilized at a set position, the solenoid is powered off, and the magnetic attraction between the electric control trolley and the central rotating shaft is increased sharply to block the axial movement of the electric control trolley.
The invention has the beneficial effects that: in the working process of the vibrator, the eccentric position of the central rotating shaft can be adjusted by controlling the electric control trolley to move on the central rotating shaft, when the electric control trolley moves to the outer end of the central rotating shaft, the vibration of the outer end of the base shell is larger than that of the inner end of the base shell, and when the electric control trolley moves to the inner end of the central rotating shaft, the vibration of the inner end of the base shell is larger than that of the outer end of the base shell, so that the base shell can vibrate in the circumferential direction around the axis, and swing around the axis center can be formed, so that vibration waves can generate wider propagation angles, and in the process of enabling the electric control trolley to move back and forth, the whole amplitude of the base shell can be increased, and the vibrating effect can.
Drawings
Fig. 1 is a schematic structural view of a first embodiment of the concrete vibrator.
Fig. 2 is a schematic structural view of a second concrete vibrator embodiment.
FIG. 3 is a schematic view of the electric control carriage and the central shaft of the concrete vibrator.
Detailed Description
The invention is further illustrated with reference to the following figures and examples:
the first embodiment is as follows:
in the first embodiment shown in fig. 1, the concrete vibrator includes a bar-shaped base shell 1; a central rotating shaft 2 is arranged in the base shell 1 along the axis of the base shell, and the central rotating shaft 2 is driven to rotate by a flexible shaft 3 outside the base shell; the central rotating shaft 2 is provided with an electric control trolley 4 which can only move axially, and the body of the electric control trolley 4 forms a counterweight body of the central rotating shaft 2; the travel of the electrically controlled trolley 4 is controlled by a controller (not shown) outside the base housing 1.
As shown in fig. 3, the central rotating shaft 2 of the concrete vibrator is provided with an axially extending C-shaped steel chute 20, that is, the shape of the inside of the chute 20 is the same as the shape of the inside of the C-shaped steel chute; the wheels 40 of the electrically controlled trolley 4 are constrained inside this chute 20.
In the first embodiment, the wheels 40 of the electrically controlled cart 4 are crawler-type wheels, and the crawler 41 of the electrically controlled cart is made of rubber belts (the crawler is omitted in fig. 3); a driving motor (not shown) of the electric control trolley 4 is a stepping motor capable of rotating forward and backward, and the wheels cannot rotate under the action of external force in a non-working state; therefore, after the driving motor stops working, the electric control trolley 4 can be stabilized at the set position through the large-area friction between the caterpillar band 41 and the chute 20.
In the working process of the vibrator, the eccentric position of the central rotating shaft 2 can be adjusted by controlling the movement of the electric control trolley 4 on the central rotating shaft 2, when the electric control trolley 4 moves to the outer end of the central rotating shaft 2, the vibration of the outer end of the base shell 1 is greater than that of the inner end of the base shell 1, and when the electric control trolley 4 moves to the inner end of the central rotating shaft 2, the vibration of the inner end of the base shell 1 is greater than that of the outer end of the base shell 1, so that the base shell 1 can vibrate in the circumferential direction around the axis, swing around the center of the axis can be formed, wider propagation angles can be generated by vibration waves, and in the process of enabling the electric control trolley 4 to move back and forth, the whole amplitude of the base shell 1 can be increased, and the vibrating.
Example two:
for the second embodiment shown in fig. 2, which is different from the first embodiment, a permanent magnet 51 is further arranged in the electrically-controlled trolley 4, a solenoid 52 is further sleeved outside the permanent magnet 51, and in an energized state of the solenoid 52, a generated magnetic field and a magnetic field of the permanent magnet 51 are mutually offset, so that the magnetic field strength of the whole body formed by the permanent magnet 51 and the solenoid 52 tends to zero; therefore, when the electric control trolley 4 needs to move, the solenoid 52 is switched on, so that the electric control trolley 4 and the central rotating shaft 2 have smaller friction force, and the electric control trolley 4 can move conveniently; when the electric control trolley 4 needs to be stabilized at the set position, the solenoid 52 is powered off, and the magnetic attraction between the electric control trolley 4 and the central rotating shaft 2 is increased sharply to prevent the electric control trolley 4 from moving axially.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, but rather as the subject matter of the invention is intended to cover all modifications, equivalents and alternatives falling within the spirit and scope of the present invention.
Claims (3)
1. A concrete vibrator comprises a rod-shaped base shell (1); a central rotating shaft (2) is arranged in the base shell (1) along the axis of the base shell, and the central rotating shaft (2) is driven to rotate by a flexible shaft (3) outside the base shell; the central rotating shaft (2) is provided with an electric control trolley (4) which can only move axially, and the body of the electric control trolley (4) forms a counterweight body of the central rotating shaft (2); the running of the electric control trolley (4) is controlled by a controller outside the base shell; the method is characterized in that: the electric control trolley is characterized in that a permanent magnet (51) is further arranged in the electric control trolley (4), a solenoid (52) is further sleeved outside the permanent magnet (51), and a generated magnetic field of the solenoid (52) is mutually offset with a magnetic field of the permanent magnet (51) in an electrified state, so that the magnetic field strength of the whole formed by the permanent magnet (51) and the solenoid (52) tends to zero.
2. The concrete vibrator according to claim 1, wherein: the central rotating shaft (2) is provided with an axially extending C-shaped steel chute (20), and wheels (40) of the electric control trolley (4) are restrained in the chute (20).
3. The concrete vibrator according to claim 1 or 2, wherein: the wheels (40) of the electric control trolley (4) are crawler-type wheels, and a crawler of the electric control trolley is composed of a rubber belt (41); the driving motor of the electric control trolley (4) is a stepping motor capable of rotating forward and backward, and the wheels cannot rotate under the action of external force in a non-working state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711432306.4A CN107975239B (en) | 2017-12-26 | 2017-12-26 | Concrete vibrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711432306.4A CN107975239B (en) | 2017-12-26 | 2017-12-26 | Concrete vibrator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107975239A CN107975239A (en) | 2018-05-01 |
| CN107975239B true CN107975239B (en) | 2020-05-22 |
Family
ID=62007665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711432306.4A Expired - Fee Related CN107975239B (en) | 2017-12-26 | 2017-12-26 | Concrete vibrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107975239B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113323401B (en) * | 2021-06-21 | 2023-03-28 | 浙江罗邦建设有限公司 | Concrete vibrator for building construction and use method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1201691A (en) * | 1968-08-02 | 1970-08-12 | Fyne Machinery & Eng | Improvements in and relating to vibrators |
| US6155708A (en) * | 1999-01-19 | 2000-12-05 | Lindley; Thomas R. | Concrete vibrator with offset rotor |
| CN2460660Y (en) * | 2001-01-17 | 2001-11-21 | 徐达 | External vibrator |
| CN1472411A (en) * | 2002-07-30 | 2004-02-04 | 冯玉加 | Electric environment protecting reciprocal vibrator |
| CN205421944U (en) * | 2015-12-01 | 2016-08-03 | 北京顺东混凝土有限公司 | Multidirectional concrete vibrting spear |
| CN206245752U (en) * | 2016-09-30 | 2017-06-13 | 昆明理工大学 | A kind of plug-in type chaotic vibration vibrator |
-
2017
- 2017-12-26 CN CN201711432306.4A patent/CN107975239B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN107975239A (en) | 2018-05-01 |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200420 Address after: 336000 No.33, Gaoxin Avenue, Fengcheng high tech Industrial Park, Yichun City, Jiangxi Province Applicant after: Fengcheng Julong Pipe Co.,Ltd. Address before: Suzhou Wuzhong District City, Jiangsu province 215000 Soochow road name 125 Yu Business Plaza No. 3 Building 7 floor Applicant before: Ma Renhuan |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200522 |