CN108005390B - Electromagnetic silent concrete vibrator - Google Patents
Electromagnetic silent concrete vibrator Download PDFInfo
- Publication number
- CN108005390B CN108005390B CN201711418707.4A CN201711418707A CN108005390B CN 108005390 B CN108005390 B CN 108005390B CN 201711418707 A CN201711418707 A CN 201711418707A CN 108005390 B CN108005390 B CN 108005390B
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- sliding block
- electromagnet
- spiral steel
- iron sliding
- way bearing
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- 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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- 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
- E04G21/063—Solidifying concrete, e.g. by application of vacuum before hardening making use of vibrating or jolting tools
- E04G21/066—Solidifying concrete, e.g. by application of vacuum before hardening making use of vibrating or jolting tools acting upon the surface of the concrete, whether or not provided with parts penetrating the concrete
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The invention provides an electromagnetic silent concrete vibrator, which comprises a base shell, wherein the inner tail end of the base shell is provided with an electromagnet which can be axially magnetized and is intermittently supplied with power; a spiral steel bar is arranged in front of the electromagnet; iron sliding blocks capable of freely sliding in the axial direction are sleeved outside the spiral steel bars; a rotary driving part matched with the spiral steel bar is arranged in the iron sliding block, so that when the iron sliding block axially slides, the spiral steel bar rotates around an axis; a restraining spring is further arranged in the slideway space where the iron sliding block is located, and the restraining spring enables the iron sliding block to be far away from the electromagnet under the power-off state of the electromagnet; the front end of the spiral steel bar is connected to the inner ring of the one-way bearing, and an outer bearing is sleeved outside the one-way bearing; the outer ring of the one-way bearing is connected with a rotating pipe which rotates synchronously with the outer ring of the one-way bearing and is provided with an eccentric balancing weight on one side. The vibrator has extremely low noise during working, does not influence the surrounding environment and has good energy-saving effect.
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, the eccentric mechanism is driven by a driving flexible shaft outside the vibrating rod, and the driving flexible shaft is driven by an external internal combustion engine or a motor; in the working process of the vibrator with the structure, the working noise of an external internal combustion engine or a motor is very loud, and the vibrator has great influence on the surrounding environment; on the other hand, the transmission efficiency is low due to the drive of the flexible shaft, so that the energy consumption is huge.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide an electromagnetic silent concrete vibrator, which has low noise during operation, does not affect the surrounding environment, and has a good energy saving effect.
The first technical scheme adopted by the invention for solving the technical problems is as follows: the electromagnetic silent concrete vibrator comprises a rod-shaped base shell; the tail end in the base shell is provided with an electromagnet capable of being magnetized in the axial direction; the electromagnet is connected to an external control power supply through a cable; the external control power supply intermittently supplies power to the electromagnet at a fixed frequency; a spiral steel bar is arranged in front of the electromagnet along the axis of the base shell; an iron sliding block capable of freely sliding in the axial direction is sleeved outside the spiral steel bar; a rotary driving part matched with the spiral steel strip is arranged in the iron sliding block, so that when the iron sliding block axially slides, the spiral steel strip rotates around an axis; a restraining spring is further arranged in a slide way space where the iron sliding block is located, and under the power-off state of the electromagnet, the restraining spring enables the iron sliding block to be far away from the electromagnet; the front end of the spiral steel bar is connected to the inner ring of a one-way bearing, an outer bearing is sleeved outside the one-way bearing, and the outer ring of the one-way bearing is fixed in the inner ring of the outer bearing; the outer ring of the one-way bearing is connected with a rotating pipe which can rotate synchronously along with the outer ring of the one-way bearing, and one side of the rotating pipe axially extends to form an eccentric balancing weight so that the center of gravity of the rotating pipe falls on one side of the rotating pipe.
Preferably, the restraint spring for set up in the extension spring between iron slider and one-way bearing, the outer bearing to make iron slider near apart from the electromagnet, in order to bear great magnetic attraction, for the spiral billet provides great moment of torsion.
Preferably, the driving part of the spiral steel bar is a ball embedded in the inner peripheral surface of the iron sliding block, and can freely roll around the center of the ball; thereby minimizing frictional loss between the driving member and the spiral steel rod.
The concrete vibrator that above-mentioned first technical scheme relates has: when the electromagnet is powered on and off once every time, the iron sliding block approaches to or is away from the electromagnet once, so that the spiral steel bar is prompted to rotate forwards or backwards once; the spiral steel bar forms a driving action on the rotating pipe only in a half period and is relatively independent from the rotating pipe in the other half period because the spiral steel bar is coupled with the rotating pipe through the one-way bearing; for example, the spiral steel strip only forms a driving function for the rotating pipe in the forward rotation, and is independent from the rotating pipe in the reverse rotation; therefore, the spiral steel bars provide torque for the rotary pipe in an intermittent manner, so that the rotating speed of the rotary pipe can be gradually increased to a higher level, and the vibrator can generate a good vibrating effect; because no external driving mechanism is arranged, the vibrator has extremely low noise when working, does not influence the surrounding environment and has good energy-saving effect.
The second technical scheme adopted by the invention for solving the technical problems is as follows: the electromagnetic silent concrete vibrator comprises a rod-shaped base shell; the tail end in the base shell is provided with an electromagnet capable of being magnetized in the axial direction; the electromagnet is connected to an external control power supply through a cable; the external control power supply intermittently supplies power to the electromagnet at a fixed frequency; a spiral steel bar is arranged in front of the electromagnet along the axis of the base shell; an iron sliding block capable of freely sliding in the axial direction is sleeved outside the spiral steel bar; a rotary driving part matched with the spiral steel strip is arranged in the iron sliding block, so that when the iron sliding block axially slides, the spiral steel strip rotates around an axis; a restraining spring is further arranged in a slide way space where the iron sliding block is located, and under the power-off state of the electromagnet, the restraining spring enables the iron sliding block to be far away from the electromagnet; the front end of the spiral steel bar is connected to the inner ring of a one-way bearing, an outer bearing is sleeved outside the one-way bearing, and the outer ring of the one-way bearing is fixed in the inner ring of the outer bearing; the outer ring of the one-way bearing is connected with a twist pipe which can synchronously rotate along with the outer ring of the one-way bearing, a twist-shaped circulating channel is formed in the twist pipe, and a counterweight ball which can freely move is arranged in the circulating channel.
Preferably, the restraint spring for set up in the extension spring between iron slider and one-way bearing, the outer bearing to make iron slider near apart from the electromagnet, in order to bear great magnetic attraction, for the spiral billet provides great moment of torsion.
Preferably, the driving part of the spiral steel bar is a ball embedded in the inner peripheral surface of the iron sliding block, and can freely roll around the center of the ball; thereby minimizing frictional loss between the driving member and the spiral steel rod.
Preferably, the weight ball is a shot ball.
The concrete vibrator that above-mentioned second kind technical scheme relates has: similar to the first solution, the twist tube is gradually accelerated to rotate; in the process of accelerating the twist pipe, the counterweight balls do reciprocating motion in the twist-shaped circulating channel; in the process, the center of gravity of the whole twist tube rotates around the axis continuously and does axial reciprocating motion, so that the whole rod-shaped base shell outputs circumferential and axial vibration simultaneously, the vibration mode is richer, and the vibration effect is further improved.
Drawings
Fig. 1 is a schematic view of a first embodiment of the electromagnetic silent concrete vibrator.
Fig. 2 is a schematic view of the second embodiment of the electromagnetic silent 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 electromagnetic silent concrete vibrator comprises a rod-shaped base shell 1; the tail end in the base shell 1 is provided with an electromagnet 2 which can be axially magnetized; the electromagnet 2 is connected to an external control power supply (not shown) by a cable 21; the external control power supply intermittently supplies power to the electromagnet 2 at a fixed frequency; a spiral steel bar 3 is arranged in front of the electromagnet 2 along the axis of the base shell 1; an iron sliding block 4 capable of freely sliding in the axial direction is sleeved outside the spiral steel bar 3; a rotating driving part 41 matched with the spiral steel strip 3 is arranged inside the iron sliding block 4, so that when the iron sliding block 41 axially slides, the spiral steel strip 3 rotates around an axis; a restraining spring 5 is further arranged in a slide way space where the iron sliding block 4 is located, and in the power-off state of the electromagnet 2, the restraining spring 5 enables the iron sliding block 4 to be far away from the electromagnet 2; the front end of the spiral steel bar 3 is connected to the inner ring of a one-way bearing 6, an outer bearing 7 is further sleeved outside the one-way bearing 6, and the outer ring of the one-way bearing 6 is fixed in the inner ring of the outer bearing 7; the outer ring of the one-way bearing 6 is connected forward with a rotating pipe 8 which can rotate synchronously with the outer ring of the one-way bearing 6, and one side of the rotating pipe 8 extends axially to form an eccentric balancing weight 81, so that the center of gravity of the rotating pipe 8 is located on one side of the rotating pipe 8.
In the vibrator described above, one end of the spiral steel rod 3 near the electromagnet 2 is fitted in the tail end bearing 30; the front end of the rotary tube 8 is fitted in a front end bearing 80 at the front end of the base housing 1.
Foretell vibrator, restraint spring 5 for set up in extension spring 5 between iron slider 4 and one-way bearing 6, the outer bearing 7 to it is nearer apart from electromagnet 2 to make iron slider 4, in order to bear great magnetic attraction, for spiral billet 3 provides great moment of torsion. The driving part 41 of the spiral steel bar 3 is a ball embedded in the inner peripheral surface of the iron sliding block 4 and can freely roll around the self spherical center; thereby minimizing frictional loss between the driving member 41 and the spiral steel rod 3.
In the vibrator, when the electromagnet 2 is powered on and off once every time, the iron sliding block 4 approaches to and departs from the electromagnet 2 once, so that the spiral steel bar 3 is driven to rotate forwards and backwards once to form a motion cycle; since the threaded steel rod 3 is coupled with the rotating pipe 8 through the one-way bearing 6, the threaded steel rod 3 only drives the rotating pipe 8 in a half period, and is relatively independent from the rotating pipe 8 in the other half period; for example, the spiral steel strip 3 only drives the rotary pipe 8 in the forward rotation, and is independent of the rotary pipe 8 in the reverse rotation; therefore, the spiral steel bars 3 intermittently provide torque to the rotating pipe 8, so that the rotating speed of the rotating pipe 8 can be gradually increased to a higher level, and the vibrator can generate a good vibrating effect; because no external driving mechanism is arranged, the vibrator has extremely low noise when working, does not influence the surrounding environment and has good energy-saving effect.
Example two:
for the second embodiment shown in fig. 2, different from the first embodiment, a twist pipe 9 which can rotate synchronously with the outer ring of the one-way bearing 6 is connected forward to the outer ring of the one-way bearing 6, that is, the twist pipe 9 replaces the rotating pipe 8 in the first embodiment; specifically, the twist tube 9 is fixed in a tube 92, and is fixedly connected to the outer ring of the one-way bearing 6 and the inner ring of the front end bearing 80 by the tube 92.
A twist-shaped circulation channel is formed in the twist tube 9, and a freely movable counterweight ball 91 is arranged in the circulation channel.
For the second embodiment, similarly to the first embodiment, the twist tube 9 is gradually accelerated to rotate; during the acceleration of the twist tube 9, the counterweight balls 91 will make a circular reciprocating motion in the twist-shaped circulation channel; in this process, the center of gravity of the entire twist tube 9 not only rotates continuously around the axis, but also reciprocates axially, so that the entire stick-like base shell 1 outputs circumferential and axial vibrations at the same time, and the vibration mode is made richer to further improve the vibrating effect.
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 (7)
1. An electromagnetic silent concrete vibrator comprises a rod-shaped base shell (1); the method is characterized in that: the tail end in the base shell (1) is provided with an electromagnet (2) which can be magnetized in the axial direction; the electromagnet (2) is connected to an external control power supply through a cable (21); the external control power supply intermittently supplies power to the electromagnet (2) at a fixed frequency; a spiral steel bar (3) is arranged in front of the electromagnet (2) along the axis of the base shell (1); an iron sliding block (4) capable of freely sliding in the axial direction is sleeved outside the spiral steel bar (3); a rotary driving part (41) matched with the spiral steel strip (3) is arranged in the iron sliding block (4), so that when the iron sliding block (4) axially slides, the spiral steel strip (3) rotates around an axis; a restraining spring (5) is further arranged in a slide way space where the iron sliding block (4) is located, and the iron sliding block (4) is far away from the electromagnet (2) by the restraining spring (5) in a power-off state of the electromagnet (2); the front end of the spiral steel bar (3) is connected to the inner ring of a one-way bearing (6), an outer bearing (7) is sleeved outside the one-way bearing (6), and the outer ring of the one-way bearing (6) is fixed in the inner ring of the outer bearing (7); the outer ring of the one-way bearing (6) is connected with a rotating pipe (8) which can rotate synchronously along with the outer ring of the one-way bearing (6), and an eccentric balancing weight (81) extends axially on one side of the rotating pipe (8) so that the center of gravity of the rotating pipe (8) falls on one side of the rotating pipe.
2. The electromagnetic silent concrete vibrator according to claim 1, characterized in that: the restraint spring (5) is a tension spring arranged between the iron sliding block (4) and the one-way bearing (6) and the outer bearing (7).
3. The electromagnetic silent concrete vibrator according to claim 1, characterized in that: the driving part (41) of the spiral steel bar (3) is a ball embedded in the inner peripheral surface of the iron sliding block (4) and can freely roll around the center of the ball.
4. An electromagnetic silent concrete vibrator comprises a rod-shaped base shell (1); the method is characterized in that: the tail end in the base shell (1) is provided with an electromagnet (2) which can be magnetized in the axial direction; the electromagnet (2) is connected to an external control power supply through a cable (21); the external control power supply intermittently supplies power to the electromagnet (2) at a fixed frequency; a spiral steel bar (3) is arranged in front of the electromagnet (2) along the axis of the base shell (1); an iron sliding block (4) capable of freely sliding in the axial direction is sleeved outside the spiral steel bar (3); a rotary driving part (41) matched with the spiral steel strip (3) is arranged in the iron sliding block (4), so that when the iron sliding block (4) axially slides, the spiral steel strip (3) rotates around an axis; a restraining spring (5) is further arranged in a slide way space where the iron sliding block (4) is located, and the iron sliding block (4) is far away from the electromagnet (2) by the restraining spring (5) in a power-off state of the electromagnet (2); the front end of the spiral steel bar (3) is connected to the inner ring of a one-way bearing (6), an outer bearing (7) is sleeved outside the one-way bearing (6), and the outer ring of the one-way bearing (6) is fixed in the inner ring of the outer bearing (7); the outer ring of the one-way bearing (6) is connected with a twist pipe (9) which can synchronously rotate along with the outer ring of the one-way bearing (6), a twist-shaped circulating channel is formed in the twist pipe (9), and a freely-moving counterweight ball (91) is arranged in the circulating channel.
5. The electromagnetic silent concrete vibrator according to claim 4, wherein: the restraint spring (5) is a tension spring arranged between the iron sliding block (4) and the one-way bearing (6) and the outer bearing (7).
6. The electromagnetic silent concrete vibrator according to claim 4, wherein: the driving part (41) of the spiral steel bar (3) is a ball embedded in the inner peripheral surface of the iron sliding block (4) and can freely roll around the center of the ball.
7. The electromagnetic silent concrete vibrator according to claim 4, wherein: the weight-balancing ball (91) is a shot ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711418707.4A CN108005390B (en) | 2017-12-25 | 2017-12-25 | Electromagnetic silent concrete vibrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711418707.4A CN108005390B (en) | 2017-12-25 | 2017-12-25 | Electromagnetic silent concrete vibrator |
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| Publication Number | Publication Date |
|---|---|
| CN108005390A CN108005390A (en) | 2018-05-08 |
| CN108005390B true CN108005390B (en) | 2020-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711418707.4A Active CN108005390B (en) | 2017-12-25 | 2017-12-25 | Electromagnetic silent concrete vibrator |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109537904A (en) * | 2018-12-07 | 2019-03-29 | 彭从文 | Performance of concrete column confined pours auxiliary device and its application method |
| USD1000927S1 (en) | 2021-04-22 | 2023-10-10 | Milwaukee Electric Tool Corporation | Concrete vibrator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2090716C1 (en) * | 1994-07-18 | 1997-09-20 | Константин Валентинович Петров | Device for compaction of concrete mixes in installation of bored electrohydraulic pulsed piles |
| DE20017054U1 (en) * | 2000-09-30 | 2001-01-18 | Tamme Werner | Internal vibrator |
| CN104746878B (en) * | 2015-03-23 | 2017-03-08 | 浙江臻泰建设有限公司 | Concrete energy-saving vibrator |
| CN104746881B (en) * | 2015-03-23 | 2016-09-07 | 浙江鼎川建设有限公司 | Electromagnetic energy-saving type concrete vibrator |
| CN205935700U (en) * | 2016-08-03 | 2017-02-08 | 中天建设集团有限公司天津分公司 | Multi -functional machinery that vibrates of concrete |
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| CN108005390A (en) | 2018-05-08 |
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Effective date of registration: 20200302 Address after: 528000 F1, F2, F3 first floor, 201, 202, 205 and third floor, no.13-2, Zone C, Southwest Park, Sanshui Industrial Park, Foshan City, Guangdong Province Applicant after: Foshan Sanshui xinjianhong Concrete Co., Ltd Address before: Room 813, Block A, Dell Plaza, Kaiping Road, Wujiang District, Suzhou City, Jiangsu Province Applicant before: Zhong Xingying |
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