CN210910453U - Concrete shaking table - Google Patents

Abstract

The utility model discloses a concrete vibrating table, including shaking table, the vibration subassembly of setting in the shaking table lower part and the driving motor who is used for driving the vibration subassembly, the vibration subassembly is including the fixed disk of fixing in the shaking table bottom and the driving disk that corresponds with the fixed disk, be provided with annular vibration track on the bottom surface of fixed disk, the vibration track sets up with the fixed disk is concentric, equidistant a plurality of recesses that are provided with in the vibration track, be provided with on the top surface of driving disk with the recess corresponds and the ball that equals in quantity, the ball rolls along the vibration track and the spaced roll-in recess and roll-out recess; the both sides of shaking table are along vertical spacing supporting component that sets up, and spacing supporting component includes along vertical vibrating sleeve and the suit of fixing in the vibrating sleeve of shaking table bottom the support column of vertical setting in the vibrating sleeve, the utility model discloses replace the vibrating motor among the existing equipment with ordinary driving motor, cost and noise are reduced.

Description

Concrete shaking table

The technical field is as follows:

the utility model belongs to the technical field of building engineering, concretely relates to concrete shaking table.

Background art:

after the concrete is poured into the formwork, the concrete cannot be automatically filled and compacted due to the frictional resistance among aggregates and the adhesive force of cement paste, the interior of the concrete is loose, and the concrete has a certain volume of cavities and bubbles and cannot reach the required compactness, so that the strength, frost resistance, impermeability and durability of the concrete are influenced. Therefore, after the concrete is placed into a mold, the concrete is required to be subjected to vibration compaction molding, the interior of the concrete is generally vibrated by a concrete vibrator, and gas in the concrete is discharged by vibration; the concrete vibrating table is a device suitable for test piece molding and compaction molding of various concrete components such as plate columns, beams and the like by jolt ramming of prefabricated components in a laboratory and a field construction site.

The existing concrete vibration table is mainly composed of a table underframe, a vibrator spring and other parts, wherein the table top and the underframe are both formed by welding steel plates and section steel, and the vibration table is composed of a motor and a pair of same eccentric wheels. And the vibration-compaction device is arranged at the central position of the table top (the reverse side) through a pair of hanger couplings, and plays a role in stabilizing and vertical direction in the vibration-compaction process.

However, due to the structural defects, the vibration table is generally vibrated by using the vibration motor in the using process, and the vibration motor has high noise, high cost and troublesome maintenance in the using process and cannot meet the requirements of people, so that the research on the device for driving the vibration table to vibrate without using the vibration motor is necessary.

The invention content is as follows:

to the defect and the problem that existing equipment exists, the utility model provides a concrete shaking table replaces vibrating motor with ordinary motor to drive, and cost and noise pollution have been reduced, the effectual big and with high costs problem of noise that exists of having solved among the existing equipment.

The utility model provides a scheme that its technical problem adopted is: a concrete vibration table comprises a vibration table, a vibration assembly and a driving motor, wherein the vibration assembly is arranged at the lower part of the vibration table, the driving motor is used for driving the vibration assembly, the vibration assembly comprises a fixed disc fixed at the bottom of the vibration table and a movable disc corresponding to the fixed disc, an annular vibration track is arranged on the bottom surface of the fixed disc, the vibration track and the fixed disc are concentrically arranged, a plurality of grooves are arranged in the vibration track at equal intervals, balls which correspond to the grooves and are equal in number are arranged on the top surface of the movable disc, and the balls roll along the vibration track and roll into the grooves and roll out of the grooves at intervals; the movable disc is in transmission connection with a rotating shaft of the driving motor; the utility model discloses a vibrating table, including the shaking table, the both sides of shaking table are along vertical spacing supporting component that sets up, and spacing supporting component includes along vertical vibrating sleeve and the support column of the vertical setting of suit in the vibrating sleeve of fixing in the shaking table bottom, the support column is equipped with the baffle along the horizontal direction cover, the vibrating sleeve can reciprocate along the support column and is blockked by the baffle.

Furthermore, driving motor is connected with the driving disk through the transmission of transmission shaft, the outside of transmission shaft is provided with sealed axle sleeve, the inner of baffle is fixed on sealed axle sleeve to be provided with the extension spring between baffle and shaking table.

Furthermore, a buffer cushion is arranged on the contact surface of the baffle table and the vibrating sleeve.

The depth of the groove is equal to the height of the ball extending out of the movable disc, and a cushion pad is arranged on the contact surface of the movable disc and the fixed disc.

Furthermore, a fixed seat is fixed on the vibration table, the fixed seat is a hollow box body, fixing components are arranged on two side walls of the box body, and each fixing component comprises a screw hole formed in the side wall of the box body, a screw rod sleeved in the screw hole, and a pressing plate and a rotating handle which are respectively fixed at the inner end and the outer end of the screw rod.

The utility model has the advantages that: the utility model uses the common driving motor to replace the vibration motor in the prior equipment, and the rotating shaft of the driving motor is provided with the vibration component, the vibration component is a fixed disc and a movable disc which are mutually matched, the fixed disc and the movable disc are provided with grooves and balls which are mutually matched in equal quantity, the vibration frequency is adjusted by setting the number N of the grooves and the balls or changing the rotating speed of the driving motor, the vibration table can vibrate up and down for N times by one circle of rotation of the movable disc, the vibration frequency is high, and rolling friction is formed between the balls and the grooves, the friction coefficient is small, the kinetic energy conversion efficiency is high, a high-power motor is not needed to drive the movable disc, the cost is reduced, and each contact surface is provided with a buffer cushion in the vibration process, the buffer cushions not only reduce the noise pollution in the vibration process, meanwhile, the device has a protection effect on equipment, is reasonable in structure, convenient to popularize and use and has huge economic and social benefits.

Description of the drawings:

fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the fixing base.

Fig. 3 is another structure and state diagram of the present invention.

Fig. 4 is a schematic structural view of the fixed plate.

Fig. 5 is a schematic view of the fitting structure of the balls and the grooves.

The reference numbers in the figures are: 1 is driving motor, 2 is the shaft coupling, 3 is the transmission shaft, 4 is the driving disk, 5 is the price fixing, 6 is the shaking table, 7 is the vibration cover, 8 is the support column, 9 is the extension spring, 10 is the baffle, 11 is sealed axle sleeve, 12 is first blotter, 13 is the clamp plate, 14 is the base, 15 is the screw rod, 15 is the swing handle, 16 is the recess, 17 is the ball, 18 is the second blotter.

The specific implementation mode is as follows:

the present invention will be further explained with reference to the drawings and examples.

Example 1: this embodiment aims at providing a concrete shaking table, and this shaking table has replaced the vibrating motor among the original equipment with ordinary driving motor, and the cost is reduced, as shown in fig. 1, a concrete bottom shaking table, including square shaking table 6, the both sides setting of shaking table 6 is provided with spacing supporting component along the vertical, spacing supporting component includes along the vertical vibrating sleeve 7 of fixing in the shaking table bottom, and the bottom cover of vibrating sleeve 7 is equipped with support column 8, and support column 8 is fixed subaerial through the angle iron.

A vibration assembly is arranged at the center of the bottom of the vibration table 6, the vibration assembly comprises a fixed disc 5 fixed at the bottom of the vibration table 6 and a movable disc 4 corresponding to the fixed disc, the fixed disc 5 and the movable disc 4 are circular discs with the same diameter, the fixed disc 5 is provided with an annular vibration track concentric with the fixed disc 5, the inner side and the outer side of the vibration track are provided with second cushion pads 18, a plurality of grooves 16 are arranged in the vibration track at equal intervals, and the grooves 16 are formed by array respectively by taking the circle center of the fixed disc as the circle center, so that grooves distributed at intervals are formed on the vibration track; the top surface of the movable disc 4 is provided with balls 17 which correspond to the grooves and are equal in number, the balls 17 are embedded in the top surface of the movable disc, the height of the balls 17 extending out of the movable disc is equal to the depth of the grooves 16, the balls roll into the grooves and roll out of the grooves at intervals along the vibration track, the balls are completely embedded into the grooves along with the rotation of the movable disc due to the one-to-one correspondence of the balls and the grooves, the height of the balls extending out of the movable disc is equal to the depth of the grooves, and meanwhile, the fixed disc 5 is pressed downwards due to the self gravity of the vibration table and concrete arranged on the vibration table, so that the fixed disc and the movable disc are pressed and contacted together, the vibration table 6 can descend to the height of one groove and continue to rotate the movable disc, the balls roll out of the grooves, at the moment, the vibration table 6 can slowly lift along the grooves, so that the vibration table can lift the depth of one, the up-and-down high-frequency vibration of the vibration table is realized.

The quantity of ball and recess is provided with N, and the value of N can be 4, 6, 8, 10 etc to the driving disk rotates the round, and the shaking table can vibrate corresponding N times, and vibration frequency is high, and then through adjusting driving motor's rotational speed V, makes the vibration frequency F of shaking table obtain corresponding regulation, need not realize the high-frequency vibration of shaking table with the higher driving motor of rotational speed.

Meanwhile, the limiting support assembly can ensure that the vibrating table vibrates vertically all the time, and the stability of the vibrating table is ensured; meanwhile, the supporting column 8 is provided with a baffle 10, when the vibrating sleeve 7 vibrates, the baffle 10 can be used as a lower limiting plate of the vibrating sleeve 7 to block the vibrating sleeve 7, a first cushion pad 12 is arranged on the contact surface of the baffle table and the vibrating sleeve, when the vibrating sleeve is contacted with the baffle table, a buffer memory is provided, and the impulsive force generated when the vibrating table descends is reduced, because the vibration of the vibrating table is the circular vibration, the force generated when the vibration reaches the wave trough is larger, and the vibration sleeve and the baffle are impacted together and buffered through the buffer memory pad at the moment, so that most of inertia force is shared by the vibration between the fixed disc and the movable disc, the interaction force between the movable disc 4 and the fixed disc 5 is slowed down, and meanwhile, the contact surfaces of the fixed disc and the movable disc are provided with the second cushion pads 18, the structure is reasonable, the cushion pads on the contact surfaces not only can play a role of buffering vibration inertia force, but also can reduce rigid collision generated during vibration, and noise generated during operation of the vibration table is reduced.

Meanwhile, the balls 17 and the vibration tracks are in sliding friction, the friction coefficient is small, the energy damage is small, the kinetic energy transmission efficiency is high, a large-power motor is not needed to be used for driving the moving disc, the cost is reduced, and the popularization and the use are convenient.

Example 2: this example is substantially the same as example 1, except that: a tension spring 9 is arranged between the baffle and the vibration table.

The cover is equipped with shaft coupling 2 in driving motor's the pivot, and the output cover of shaft coupling 2 is equipped with transmission shaft 3, and 4 suits of driving disk are on transmission shaft 3, are provided with sealed axle sleeve 11 in the outside of transmission shaft 3 and shaft coupling 2, and baffle 10 extends and fixes on sealed axle sleeve 11, and the below of baffle 10 is provided with the backup pad simultaneously, as shown in fig. 1, driving motor installs in the motor case, and the backup pad is fixed between support column and motor case, is provided with the landing leg between backup pad and the baffle and is used for further supporting baffle 10.

A tension spring 9 is vertically arranged between the baffle 10 and the vibration table 6, and sealing plates are arranged on the side surfaces of the baffle and the vibration table in order to ensure that the vibration assembly and the tension spring are positioned in a sealed space; through set up the extension spring in vibration subassembly both sides and can make ball and vibration track remain closely the laminating state throughout, guarantee that the ball rolls along the recess intrados, guarantee the stability of shaking table vibration.

Example 3: this example is substantially the same as example 1, except that: and a fixed seat is fixed on the vibration table.

As shown in fig. 2, the fixing seat is a hollow box body, fixing components are arranged on two side walls of the box body, each fixing component comprises a screw hole formed in the side wall of the box body, a screw rod 15 sleeved in the screw hole, and a pressing plate 13 and a rotating handle 15 which are respectively fixed at the inner end and the outer end of the screw rod 15, the base 14 is fixed on the side surface of the pressing plate, the screw rods are nested in the base 14, and the two fixing components are arranged along the side wall of the box body and are used for fixing the mold from the upper portion and the.

The concrete pouring mold is fixed in the fixed seat, and the pressing plate 13 is pushed inwards by rotating the rotary handle, so that the mold is fixed in the fixed seat.

During the use, fix the concrete mould on the fixing base, the vibration of concrete vibration platform, the vibrational force that will have certain frequency and amplitude is passed to the concrete on the shaking table, make the concrete take place the forced vibration, the concrete of newly pouring is under the vibrational force effect, adhesive force and frictional resistance between the granule reduce greatly, the mobility increases, the aggregate sinks under the action of gravity, grout evenly distributed fills the aggregate space, the bubble escapes, the hole reduces, free moisture is extruded and is risen, make original loose accumulational concrete be full of the mould, make the concrete compactness improve. After the vibration stops, the concrete recovers the condensation state again and gradually coagulates and hardens.

From this the utility model discloses, novel structure, vibration frequency is high, and is rolling friction between ball and the recess, and coefficient of friction is little, and kinetic energy conversion efficiency is high, need not use powerful motor to drive the driving disk, and the cost is reduced has effectually solved the big and with high costs problem of noise that exists among the existing equipment, and convenient to use has huge economy and social.

Claims (5)

1. A concrete shaking table which is characterized in that: the vibration table comprises a vibration table, a vibration assembly and a driving motor, wherein the vibration assembly is arranged on the lower portion of the vibration table, the driving motor is used for driving the vibration assembly, the vibration assembly comprises a fixed disc fixed at the bottom of the vibration table and a movable disc corresponding to the fixed disc, an annular vibration track is arranged on the bottom surface of the fixed disc, the vibration track and the fixed disc are concentrically arranged, a plurality of grooves are formed in the vibration track at equal intervals, balls which correspond to the grooves and are equal in number are arranged on the top surface of the movable disc, and the balls roll into the grooves and roll out of the grooves at intervals along the vibration track; the movable disc is in transmission connection with a rotating shaft of the driving motor; the utility model discloses a vibrating table, including the shaking table, the both sides of shaking table are along vertical spacing supporting component that sets up, and spacing supporting component includes along vertical vibrating sleeve and the support column of the vertical setting of suit in the vibrating sleeve of fixing in the shaking table bottom, the support column is equipped with the baffle along the horizontal direction cover, the vibrating sleeve can reciprocate along the support column and is blockked by the baffle.

2. The concrete vibrating table of claim 1, wherein: the driving motor is in transmission connection with the movable disc through a transmission shaft, a sealing shaft sleeve is arranged on the outer side of the transmission shaft, the inner end of the baffle is fixed on the sealing shaft sleeve, and a tension spring is arranged between the baffle and the vibration table.

3. The concrete vibrating table of claim 1, wherein: and a buffer cushion is arranged on the contact surface of the baffle table and the vibration sleeve.

4. The concrete vibrating table of claim 1, wherein: the depth of the groove is equal to the height of the ball extending out of the movable disc, and buffering pads are arranged on the inner side and the outer side of the vibration track on the fixed disc.

5. The concrete vibrating table of claim 1, wherein: the vibrating table is characterized in that a fixed seat is fixed on the vibrating table, the fixed seat is a hollow box body, fixing components are arranged on two side walls of the box body, and each fixing component comprises a screw hole formed in the side wall of the box body, a screw rod sleeved in the screw hole, and a pressing plate and a rotating handle which are fixed at the inner end and the outer end of the screw rod respectively.

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