CN111975933B - Concrete prefabricated part linear vibration table and concrete vibration compacting method - Google Patents
Concrete prefabricated part linear vibration table and concrete vibration compacting method Download PDFInfo
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- CN111975933B CN111975933B CN202010644896.2A CN202010644896A CN111975933B CN 111975933 B CN111975933 B CN 111975933B CN 202010644896 A CN202010644896 A CN 202010644896A CN 111975933 B CN111975933 B CN 111975933B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
- B28B1/087—Producing shaped prefabricated articles from the material by vibrating or jolting by means acting on the mould ; Fixation thereof to the mould
- B28B1/0873—Producing shaped prefabricated articles from the material by vibrating or jolting by means acting on the mould ; Fixation thereof to the mould the mould being placed on vibrating or jolting supports, e.g. moulding tables
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- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
Provided is a concrete precast element linear vibration table, which includes: a chassis; a limiting device which is arranged on the underframe and is adjustable relative to the position of the rotary center of the corresponding rotary arm; a support provided with two or more swing arms installed at the same phase angle and spaced apart by a predetermined distance; the driving system is used for driving the two or more slewing arms to synchronously rotate around respective slewing centers in the same phase; the limiting devices are arranged corresponding to the two or more rotary arms, and the two or more rotary arms extrude the corresponding limiting devices respectively to generate linear vibration in the rotating process. A method for vibrocompaction of concrete is also provided. Can realize the interior ascending linear vibration of X and/or Y direction of horizontal plane, guarantee the closely knit homogeneity of concrete vibration, improve the closely knit efficiency of vibration, noise reduction.
Description
Technical Field
The invention relates to a concrete prefabricated part linear vibration table and a concrete vibration compacting method, which are suitable for vibration compacting of large concrete prefabricated parts.
Background
At present, a plurality of vibrators are mostly adopted by a vibrating table for producing precast concrete components for vibration compaction, for example, chinese patent ZL 201020616961.2 discloses a three-surface vibrating type precast concrete pile forming machine, which comprises a vehicle body, a hopper and a shaping box, wherein the hopper is arranged above the vehicle body, the shaping box is arranged below the vehicle body, a feed inlet of the shaping box is communicated with a feed outlet of the hopper, the vibrators are arranged on an upper plane of the shaping box, and the left side surface and the right side surface of the shaping box are both provided with the vibrators. The vibrators are arranged on the left side face and the right side face of the shaping box, so that the shaping box bears three-face vibration under the combined action of the upper plane vibrator and the vibrators on the left side face and the right side face.
However, the method has the disadvantages of uneven vibration distribution, serious internal consumption, low vibration compaction efficiency, high noise and the like, so that the quality problem of the concrete member is easy to occur, and the disadvantages are more serious for a large-scale mold table.
In view of the above, the present invention is directed to a concrete prefabricated component linear vibration table and a concrete vibration compacting method, so as to solve one or more of the above technical problems.
Disclosure of Invention
To solve one or more technical problems of the prior art, according to an aspect of the present invention, there is provided a concrete prefabricated part linear vibration table, including:
a chassis;
a limiting device which is arranged on the underframe and is adjustable relative to the position of the rotary center of the corresponding rotary arm;
a support provided with two or more swing arms installed at the same phase angle and spaced apart by a predetermined distance; and
the driving system is used for driving the two or more slewing arms to synchronously rotate around respective slewing centers in the same phase;
the limiting devices are arranged corresponding to the two or more rotary arms, and the two or more rotary arms extrude the corresponding limiting devices respectively to generate linear vibration in the rotating process.
According to a further aspect of the invention, the two or more articulated arms share one drive system.
According to a further aspect of the invention, the two or more articulated arms are located in the same horizontal plane with the respective stop means.
According to a further aspect of the invention, the first end of each articulated arm is provided with a roller for pressing the corresponding stop means to generate a linear oscillation.
According to another aspect of the invention, the driving system comprises an electric motor reducer or a hydraulic motor, the electric motor reducer or the hydraulic motor sequentially drives the two or more slewing arms through a driving wheel and a driven wheel, the second end of each slewing arm is connected with a driven shaft, and the driven wheel is mounted on the driven shaft; the roller is made of soft materials or made of metal materials with soft materials arranged outside.
According to another aspect of the invention, the limiting devices are correspondingly arranged on the periphery of the two or more slewing arms, and a plurality of groups of limiting devices are distributed on the periphery of each slewing arm.
According to still another aspect of the present invention, the limiting device includes a limiting plate, a guide device, and a distance adjusting device for adjusting a relative position of the limiting plate and a rotation center of the corresponding swing arm along the guide device to adjust a vibration amplitude of the vibration table.
According to still another aspect of the present invention, the base frame is fixed to the ground by support springs, which are arranged in pairs; and a plurality of groups of clamping and fixing devices are arranged on two sides of the underframe.
According to a further aspect of the invention, the drive system is a rotational speed adjustable drive system for adjusting the vibration frequency of the vibration table for linear vibration in the X and/or Y direction in the horizontal plane by adjusting the rotational speed.
According to another aspect of the present invention, there is also provided a method for performing concrete vibratory compaction by using the concrete prefabricated part linear vibration table, which is characterized by comprising the following steps:
carrying out concrete distribution on the vibrating table;
adjusting the relative positions of the limiting devices distributed along the X and/or Y directions and the rotation centers of the corresponding rotary arms to ensure that the distance from the limiting devices to the rotation centers of the corresponding rotary arms is less than the length of the rotary arms;
the rotary arm is driven by the driving device to synchronously rotate in the same phase, and the rotary arm extrudes and pushes the limiting device to enable the vibration table to linearly vibrate in the X direction and/or the Y direction.
Compared with the prior art, the invention has one or more of the following technical effects:
firstly, the invention realizes the integral vibration in the horizontal plane of the large-scale vibration table by applying the synchronously driven rotating device and the limiting device, ensures that the vibration parameters of each position on the mould table are the same, further ensures the homogeneity of the vibration compaction of the concrete and improves the vibration compaction efficiency and quality; moreover, the amplitude and the frequency of the vibration can be adjusted, so that the vibration compaction requirements of different types of components can be met; in addition, the invention realizes linear vibration in XY direction in the horizontal plane, ensures that the large-scale die table is not distorted and deformed when vibrating, and prolongs the service life of the die table.
Secondly, compared with the prior vibration table which mostly adopts a plurality of vibrators and has extremely high vibration internal consumption and vibration noise, the synchronous rotating device and the limiting device adopted by the invention work together to realize the integral vibration of the vibration table, eliminate the internal consumption of the plurality of vibrators and greatly reduce the vibration noise;
thirdly, the limiting structure and the revolving arm of the invention have simple structure, stable performance and convenient adjustment, can independently realize the dense vibration in the X direction or the Y direction aiming at different types of components, can also realize the dense vibration in the XY direction simultaneously, have simple operation, have compact structure of the whole vibrating table and can save the cost.
Drawings
So that the manner in which the above recited features of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to embodiments. The drawings relate to preferred embodiments of the invention and are described below:
FIG. 1 is a schematic structural view of a concrete precast element linear vibration table (X-direction vibration) according to a preferred embodiment of the present invention;
FIG. 2 is a schematic view of the concrete precast element linear vibration table of FIG. 1 vibrating in the Y direction;
fig. 3 is a partial side view of a concrete precast element linear vibration table according to a preferred embodiment of the present invention.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
Reference will now be made in detail to the various embodiments, one or more examples of which are illustrated in each figure. The examples are provided by way of explanation and are not meant as limitations. For example, features illustrated or described as part of one embodiment can be used on or in conjunction with any other embodiment to yield yet a further embodiment. It is intended that the present invention encompass such modifications and variations.
In the following description of the drawings, like reference numerals designate identical or similar structures. Generally, only the differences between the individual embodiments will be described. Descriptions of parts or aspects in one embodiment can also be applied to corresponding parts or aspects in another embodiment, unless explicitly stated otherwise.
Example 1
Referring to fig. 1 to 3, the concrete precast member linear vibration table may include:
a chassis 1;
a stopper device 3 that is provided on the base frame 1 and is adjustable in position with respect to the rotation center of the corresponding below-described rotation arm 21;
a support provided with two or more swivel arms 21, the two or more swivel arms 21 being mounted at the same phase angle and spaced apart by a predetermined distance; and
a drive system 4 for driving the two or more swing arms 21 to synchronously rotate around respective swing centers in phase;
wherein, the limiting device 3 is arranged corresponding to the two or more revolving arms 21, and the two or more revolving arms 21 press the respective limiting device 3 to generate linear vibration during the rotation process.
It will be appreciated that the chassis 1 and the support of the present invention may be provided separately from each other. For example, a support is provided under the base frame 1 for supporting the swivel arm 21. The base frame 1 is used for supporting and fixing the limiting device 3. The swivel arm 21 interacts with the stop 3 to produce linear vibrations. Referring to fig. 3, the stand may be connected to the ground, for example, by a connector and a bolt, so that the swivel arm 21 is fixed to the ground through the stand.
When the vibrating table works, linear and integral vibration in the direction of X, Y can be carried out in a plane, the vibration parameters on the whole table top are the same, the vibration compaction efficiency of concrete is greatly improved, no internal consumption is caused, and the noise is low; in addition, the vibration frequency and the amplitude can be adjusted, so that the applicability is improved; because the linear vibration in the X, Y direction is carried out, the large die table has no distortion deformation and the service life is prolonged.
Preferably, the two or more articulated arms 21 share one drive system 4. The number of the swing arms 21 may be 3 or more, for example, and the adjacent swing arms 21 are spaced apart from each other by a predetermined distance.
Preferably, the two or more swivel arms 21 are located in the same horizontal plane as the respective stop means 3. For example, one swivel arm 21 is located in the same horizontal plane as the corresponding stop device 3. The other swivel arm 21 is located in the same horizontal plane as the corresponding limiting device 3.
Preferably, the first end of each swivel arm 21 is provided with a rolling member such as a roller 22, the roller 22 being used to press the corresponding stopper 3 to generate linear vibration, but the present invention is not limited thereto. It will be appreciated that rolling friction and extrusion between the rolling elements and the stop means 3, whilst generating vibration, facilitates smooth rotation of the swivel arm 21 without being accidentally jammed.
Preferably, the driving system 4 includes an electric motor reducer or a hydraulic motor, the electric motor reducer or the hydraulic motor drives the two or more swing arms 21 sequentially through a driving wheel 41 and a driven wheel 24, a second end of each swing arm 21 is connected with a driven shaft 23, and the driven wheel 24 is mounted on the driven shaft 23.
Preferably, the roller 22 is made of a soft material, or a metal material with a soft material disposed outside.
Preferably, the limiting devices 3 are correspondingly arranged around the two or more revolving arms 21, and a plurality of sets of limiting devices 3 are distributed around each revolving arm 21. For example, four limiting means 3 are arranged around one swivel arm 21, but the invention is not limited thereto.
Preferably, the limiting device 3 comprises a limiting plate, a guiding device 32 and a distance adjusting device 33, wherein the distance adjusting device 33 is used for adjusting the relative position of the limiting plate and the rotation center of the corresponding rotating arm 21 along the guiding device 32 so as to adjust the vibration amplitude of the vibration table.
Preferably, the base frame 1 is fixed to the ground by means of support springs 5, the support springs 5 being arranged in pairs. The base frame 1 may also be provided with a plurality of groups of clamping fixtures 6, for example four groups, on both sides.
Preferably, the driving system 4 is a rotational speed adjustable driving system 4 for adjusting the vibration frequency of the vibration table for linearly vibrating in the X and/or Y direction in the horizontal plane by adjusting the rotational speed.
Preferably, a method for performing concrete vibration compaction by using the concrete prefabricated part linear vibration table is further provided, and is characterized by comprising the following steps:
carrying out concrete distribution on the vibrating table;
adjusting the relative positions of the limiting devices 3 distributed along the X and/or Y directions and the rotation centers of the corresponding rotary arms 21 to ensure that the distance from the limiting device 3 to the rotation centers of the corresponding rotary arms 21 is less than the length of the rotary arms 21;
the rotary arm 21 is driven by a driving device to synchronously rotate in the same phase, and the rotary arm 21 extrudes and pushes the limiting device 3 so as to make the vibration table linearly vibrate in the X direction and/or the Y direction.
Preferably, the frequency of vibration of the vibration table can be adjusted by adjusting the rotational speed of the drive system 44. The amplitude of the vibration table can be adjusted by adjusting the distance from the stopper plate 311 to the center of rotation of the swing arm 21.
According to still another exemplary preferred embodiment of the present invention, there is also provided a concrete precast element linear vibration apparatus. Referring to fig. 1-3, the apparatus may include:
a chassis 1;
the slewing device 2 is arranged in the frame of the underframe 1 and has a double-slewing-arm 21 structure, the installation phase angles of the double-slewing arms 21 are the same, the first end of each double-slewing arm 21 is provided with a roller 22, the second end of each double-slewing arm 21 is provided with a driven shaft 23, the driven shafts 23 are parallel to each other and separated by a certain distance, the other end of each driven shaft 23 is provided with a driven wheel 24, each driven wheel 24 can be a synchronous belt wheel or a chain wheel, and each driven shaft is provided with a bearing 25; and
the limiting devices 3 are arranged around the rotary arms 21, a plurality of groups of limiting devices 3 are distributed around each rotary arm 21, a limiting plate 31 is arranged at the end part of each limiting device 3, each limiting plate 31 is provided with a guide device 32, each limiting plate 31 is connected with a distance adjusting device 33, and each distance adjusting device 33 can be a hydraulic cylinder, an electric push rod and a screw rod; and
the driving system 4 is arranged between the two groups of the slewing arms 21 of the slewing device 2 and is a motor reducer or a hydraulic motor, an output shaft of the motor reducer or the hydraulic motor is provided with a driving wheel 41, the driving wheel 41 can be a synchronous belt wheel or a chain wheel, and the driving wheel 41 is connected with the driven wheels 24 of the slewing device on two sides through a synchronous belt or a chain 42.
Preferably, the bottom of the base frame 1 is provided with support springs 5, the upper surfaces of the support springs 5 are fixed with the base frame 1, the lower surfaces of the support springs 5 are fixed with the ground, and the support springs 5 are arranged in pairs.
Preferably, a plurality of groups of mould table clamping and fixing devices 6 are arranged on two sides of the underframe 1, and the clamping devices 6 are driven by hydraulic cylinders.
Preferably, the number of the swivel arms 21 of the swivel device 2 may also be 1 or more.
Preferably, the roller 22 mounted on the first end of the revolving arm 21 of the revolving device 2 may be made of soft material, and the soft material may be nylon, polyurethane, rubber; the roller can also be made of metal, the soft buffer layer is wrapped outside the roller, and the soft buffer layer can be made of nylon, polyurethane and rubber.
Preferably, the drive system 4 is speed adjustable.
Preferably, the concrete prefabricated part vibrating table specifically works as follows: and after the mould table 7 moves to the vibration table station, the mould table clamping device 6 clamps the mould table 7 to perform concrete distribution, and after the distribution is finished, vibration work is performed. The vibration table can perform linear vibration in the XY direction, if vibration in the X direction is needed, the distance adjusting devices 33 in the 4 limiting devices 3 distributed along the X direction are adjusted, the distance from the limiting plate 31 to the rotation center of the rotating arm 21 is smaller than the rotation excircle of the rotating arm 21, the driving device 4 drives the rotating devices on two sides to synchronously rotate in the same phase, when the rotating arm 21 rotates to a certain position, the roller 22 is in contact with the limiting plate 31 to extrude and push the limiting plate 31, and the vibration table is driven to linearly vibrate in the X direction; if vibration in the Y direction is needed, adjusting distance adjusting devices 33 in 4 limiting devices 3 distributed along the Y direction to enable the distance from the limiting plate 31 to the rotation center of the rotary arm 21 to be smaller than the rotation excircle of the rotary arm 21, and when the rotary arm 21 rotates to a certain position, the roller 22 contacts with the limiting plate 31 to push the limiting plate 31 to drive the vibration table to linearly vibrate in the Y direction; by adjusting the rotation speed of the drive system 4, the vibration frequency can be adjusted; the amplitude can be adjusted by adjusting the distance from the limit plate 31 to the center of rotation of the swing arm 21.
Compared with the prior art, the invention has one or more of the following technical effects:
firstly, the invention realizes the integral vibration in the horizontal plane of the large-scale vibration table by applying the synchronously driven rotating device and the limiting device, ensures that the vibration parameters of each position on the mould table are the same, further ensures the homogeneity of the vibration compaction of the concrete and improves the vibration compaction efficiency and quality; moreover, the amplitude and the frequency of the vibration can be adjusted, so that the vibration compaction requirements of different types of components can be met; in addition, the invention realizes linear vibration in XY direction in the horizontal plane, ensures that the large-scale die table is not distorted and deformed when vibrating, and prolongs the service life of the die table.
Secondly, compared with the prior vibration table which mostly adopts a plurality of vibrators and has extremely high vibration internal consumption and vibration noise, the synchronous rotating device and the limiting device adopted by the invention work together to realize the integral vibration of the vibration table, eliminate the internal consumption of the plurality of vibrators and greatly reduce the vibration noise;
thirdly, the limiting structure and the rotary arm of the invention have simple structure, stable performance and convenient adjustment, and the whole vibration table has compact structure and can save cost.
While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.
The above embodiments are merely preferred embodiments of the present invention, which are not intended to limit the present invention, and the features of the embodiments that do not violate each other may be combined with each other. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A concrete prefabricated component linear vibration table is characterized by comprising:
a chassis;
a limiting device which is arranged on the underframe and is adjustable relative to the position of the rotary center of the corresponding rotary arm;
a support provided with two or more swing arms installed at the same phase angle and spaced apart by a predetermined distance; and
the driving system is used for driving the two or more slewing arms to synchronously rotate around respective slewing centers in the same phase;
the limiting devices are arranged corresponding to the two or more rotary arms, and the two or more rotary arms extrude the corresponding limiting devices respectively to generate linear vibration in the rotating process; the limiting device comprises a limiting plate, a guiding device and a distance adjusting device, wherein the distance adjusting device is used for adjusting the relative position of the limiting plate and the rotary center of the corresponding rotary arm along the guiding device so as to adjust the vibration amplitude of the vibration table.
2. The concrete precast element linear vibration table according to claim 1, wherein the two or more swing arms share one driving system.
3. The concrete precast element linear vibration table according to claim 2, wherein the two or more swing arms are located in the same horizontal plane with the respective corresponding position limiting means.
4. The concrete precast element linear vibration table according to any one of claims 1 to 3, wherein the first end of each swivel arm is provided with a roller for pressing the corresponding stopper to generate linear vibration.
5. The concrete precast element linear vibration table according to claim 4, wherein the driving system comprises a motor reducer or a hydraulic motor, the motor reducer or the hydraulic motor sequentially drives the two or more revolving arms through a driving wheel and a driven wheel, a second end of each revolving arm is connected with a driven shaft, and the driven wheel is mounted on the driven shaft; the roller is made of soft materials or made of metal materials with soft materials arranged outside.
6. The concrete precast element linear vibration table according to any one of claims 1 to 3, wherein the position-limiting devices are correspondingly disposed around the two or more revolving arms, and a plurality of sets of position-limiting devices are distributed around each revolving arm.
7. The concrete precast member linear vibration table according to any one of claims 1 to 3, wherein the base frame is fixed to the ground by support springs, the support springs being arranged in pairs; and a plurality of groups of clamping and fixing devices are arranged on two sides of the underframe.
8. The concrete precast member linear vibration table according to any one of claims 1 to 3, wherein the driving system is a rotation speed adjustable driving system for adjusting a vibration frequency of the vibration table for linearly vibrating in X and/or Y directions in a horizontal plane by adjusting a rotation speed.
9. A method for vibrocompaction of concrete using a linear vibration table for precast concrete elements according to any one of claims 1 to 3, characterized by comprising the steps of:
carrying out concrete distribution on the vibrating table;
adjusting the relative positions of the limiting devices distributed along the X and/or Y directions and the rotation centers of the corresponding rotary arms to ensure that the distance from the limiting devices to the rotation centers of the corresponding rotary arms is less than the length of the rotary arms;
the rotary arm is driven by the driving device to synchronously rotate in the same phase, and the rotary arm extrudes and pushes the limiting device to enable the vibration table to linearly vibrate in the X direction and/or the Y direction.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010644896.2A CN111975933B (en) | 2020-07-03 | 2020-07-03 | Concrete prefabricated part linear vibration table and concrete vibration compacting method |
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| CN202010644896.2A CN111975933B (en) | 2020-07-03 | 2020-07-03 | Concrete prefabricated part linear vibration table and concrete vibration compacting method |
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| CN111975933B true CN111975933B (en) | 2021-08-06 |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006052848B4 (en) * | 2006-11-07 | 2015-03-19 | IAB - Institut für Angewandte Bauforschung Weimar gemeinnützige GmbH | Device for shaping and compacting mixtures |
| CN202716359U (en) * | 2012-07-05 | 2013-02-06 | 洛阳卓尔振动器有限公司 | Swing type combined vibration platform |
| CN202716355U (en) * | 2012-07-05 | 2013-02-06 | 洛阳卓尔振动器有限公司 | Combined vibrating table used for component forming |
| CN203919290U (en) * | 2014-06-23 | 2014-11-05 | 廊坊合力天一机械设备有限公司 | A kind of three-dimensional variable frequency vibrational system |
| DE102016001385A1 (en) * | 2016-02-09 | 2017-08-10 | Hubert Bald | Spring system on a concrete block machine |
| CN209394888U (en) * | 2018-10-15 | 2019-09-17 | 长沙远大住宅工业阜阳有限公司 | Shake table |
| CN209999396U (en) * | 2019-01-15 | 2020-01-31 | 河北华远建筑科技股份有限公司 | rocking vibration table |
| CN210173828U (en) * | 2019-10-31 | 2020-03-24 | 江苏雄跃科技有限公司 | High-frequency automatic vibrating platform |
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