CN214975647U - A multistage vibration screening device for aggregate is experimental - Google Patents
A multistage vibration screening device for aggregate is experimental Download PDFInfo
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- CN214975647U CN214975647U CN202121392496.3U CN202121392496U CN214975647U CN 214975647 U CN214975647 U CN 214975647U CN 202121392496 U CN202121392496 U CN 202121392496U CN 214975647 U CN214975647 U CN 214975647U
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Abstract
The utility model discloses a multistage vibration screening device for aggregate test, the on-line screen storage device comprises a base, the shaking table, screening ware and shock dynamo, there is the shaking table base top through first spring coupling, the guide bar is vertical to be fixed on the shaking table, guide bar sliding connection has supporting rod and tray, the screening ware is arranged in the tray, the tray is equipped with the screw rod that passes the supporting rod, the screw rod is equipped with the nut of pressing the supporting rod on the screening ware, the tray passes through the second spring and is connected with the shaking table, the shaking table of tray is equipped with the pivot that the level set up, the pivot is equipped with first connecting rod, shock dynamo's output shaft and retarder connection, the eccentric department of output shaft of reduction gear is equipped with the second connecting rod, the second connecting rod is around the pivot and is rotated and is promoted first connecting rod and is rotated. When vibrating motor carries out vibration screening to the sieving ware, can promote the sieving ware slowly, then the periodic quick striking downwards for fine aggregate passes the sifting surface that coarse aggregate reachd the sieving ware easily, promotes the screening of aggregate.
Description
Technical Field
The utility model relates to an aggregate screening technical field, in particular to a multistage vibration screening device for aggregate is experimental.
Background
Aggregate is also called aggregate, and is a granular material which plays a role in skeleton and filling in concrete and mortar. The composite material comprises fine aggregate and coarse aggregate, wherein the diameter of the fine aggregate is 0.16-5 mm, and the diameter of the coarse aggregate is more than 5 mm. In the preparation of concrete mortar, test samples are prepared and tested, and then batch preparation is carried out. Different concretes require aggregates of different particle diameters, so the aggregates need to be screened according to the diameter and added according to the experimental settings. In the prior art, fine aggregates penetrate through the sieve holes in the vibration screening process, coarse aggregates are blocked above the sieve mesh by the grids, the fine aggregates above the sieve mesh can only penetrate through the sieve holes after penetrating through a thick coarse aggregate layer, and the screening efficiency is low.
Disclosure of Invention
To the above-mentioned prior art, the utility model provides a multistage vibration screening device for aggregate is experimental carries out vibration screening at vibrating motor to the screening ware, can slowly promote the screening ware, then periodic quick striking downwards for thin aggregate passes the sifter that coarse aggregate reachs the screening ware easily, promotes the screening of aggregate.
The technical scheme of the invention is realized as follows:
a multistage vibration screening device for aggregate tests comprises a base, a vibration table, a screening device and a vibration motor, the upper part of the base is connected with the vibration table through a first spring, the vibration table is provided with the vibration motor and the guide rod, the guide rod is vertically fixed on the vibration table and is connected with a clamping rod and a tray in a sliding way, the sieve is arranged on the tray, the tray is provided with a screw rod penetrating through the clamping rod, the screw rod is provided with a nut pressing the clamping rod on the sieve, the tray is connected with the vibration table through a second spring, the vibration table is provided with a rotating shaft which is horizontally arranged, the rotating shaft is provided with a first connecting rod, an output shaft of the vibration motor is connected with the speed reducer, a second connecting rod is arranged at the eccentric position of the output shaft of the speed reducer, and the second connecting rod winds around the rotating shaft to rotate to push the first connecting rod to rotate.
Furthermore, the screening device comprises a plurality of sleeves with screens at the bottoms, and the sleeves are stacked between the guide rods.
Further, the shaking table is provided with a support, the support is provided with the rotating shaft, and the rotating shaft is rotatably connected with the first connecting rod.
Furthermore, an output shaft of the speed reducer is provided with a third connecting rod, the third connecting rod is perpendicular to the output shaft of the speed reducer, the second connecting rod is fixedly connected with the third connecting rod, and the second connecting rod is parallel to the output shaft of the speed reducer.
Furthermore, the second spring is a tension spring, the upper end of the second spring is connected with the tray, and the lower end of the second spring is connected with the vibration table.
Furthermore, the first spring is a spiral spring, the upper end of the first spring is connected with the vibration table, and the lower end of the first spring is connected with the base.
Furthermore, the lower end of the guide rod is provided with a cushion pad, and the tray is contacted with the cushion pad when sliding to the lower limit position.
Furthermore, the vibrating motor comprises a motor body and an eccentric block fixed on an output shaft of the motor body.
The beneficial effects of the utility model reside in that: when vibrating motor carries out vibration screening to the sieving ware, can promote the sieving ware slowly, then the periodic quick striking downwards for fine aggregate passes the sifting surface that coarse aggregate reachd the sieving ware easily, promotes the screening of aggregate. The second spring can be used for storing energy when the screen ascends, and the elastic potential energy is released when the screen descends to improve the descending speed of the screen. Stir first connecting rod through the second connecting rod and rotate, can rotate at first connecting rod and release the holding power behind vertical top for first connecting rod fast turn ensures that the tray descends fast. After the tray descends fast, the second connecting rod continues to rotate and pokes the first connecting rod to rotate and push the tray to rise again, and the contact force of the second connecting rod and the first connecting rod in the whole process and the contact force of the first connecting rod and the tray are both slowly increased, so that the connecting rod is prevented from being damaged by contact force mutation.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only preferred embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive effort.
FIG. 1 is a perspective view of a multistage vibrating screen apparatus for aggregate testing according to the present invention;
fig. 2 is a perspective view of a sleeve of the multistage vibration screening device for aggregate tests according to the present invention;
in the figure, 1 base, 2 vibration table, 3 sieving device, 4 vibration motor, 5 first spring, 6 guide rod, 7 clamping rod, 8 tray, 9 screw rod, 10 nut, 11 second spring, 12 rotating shaft, 13 first connecting rod, 14 reducer, 15 second connecting rod, 16 sleeve, 17 screen mesh, 18 support, 19 third connecting rod, 20 buffer pad, 21 motor body and 22 eccentric block.
Detailed Description
In order to better understand the technical content of the present invention, the following embodiments are provided, and the present invention is further described with reference to the accompanying drawings.
Example 1
Referring to fig. 1-2, a multistage vibration screening device for aggregate tests comprises a base 1, a vibration table 2, a screening machine 3 and a vibration motor 4, wherein the vibration table 2 is connected to the upper side of the base 1 through a first spring 5, the vibration motor 4 and a guide rod 6 are installed on the vibration table 2, the guide rod 6 is vertically fixed on the vibration table 2, a clamping rod 7 and a tray 8 are slidably connected to the guide rod 6, the screening machine 3 is arranged on the tray 8, the tray 8 is provided with a screw rod 9 penetrating through the clamping rod 7, the screw rod 9 is provided with a nut 10 pressing the clamping rod 7 on the screening machine 3, the tray 8 is connected with the vibration table 2 through a second spring 11, the vibration table 2 is provided with a horizontally arranged rotating shaft 12, the rotating shaft 12 is provided with a first connecting rod 13, an output shaft of the vibration motor 4 is connected with a speed reducer 14, a second connecting rod 15 is arranged at the eccentric position of the output shaft of the speed reducer 14, and the second connecting rod 15 winds the rotating shaft 12 to rotate to push the first connecting rod 13 to rotate.
The vibration motor 4 generates vibration when rotating, the upper part of the base 1 is connected with the vibration table 2 through the first spring 5, and the vibration table 2 is driven to vibrate together when the motor vibrates. Be provided with vertical guide bar 6 on vibrations platform 2, 6 sliding connection of guide bar have supporting rod 7 and tray 8, put into sieve 3 with the aggregate to prevent sieve 3 on tray 8, be equipped with at tray 8 and pass the screw rod 9 of supporting rod 7, screw rod 9 are equipped with nut 10, and nut 10 presses supporting rod 7 on sieve 3 when screwing up nut 10, and sieve 3 is fixed between supporting rod 7 and tray 8, makes sieve 3 vibrate with tray 8 is synchronous. The bottom of the tray 8 is provided with a rotating shaft 12 which is horizontally arranged, the tray 8 is connected with the vibration table 2 through a second spring 11, and the tray 8 is pulled downwards under the action of the second spring 11. The rotating shaft 12 is provided with a first connecting rod 13, an output shaft of the vibration motor 4 is connected with a speed reducer 14, a second connecting rod 15 is arranged at the eccentric position of the output shaft of the speed reducer 14, the vibration motor 4 rotates at a high speed to generate vibration and drives the second connecting rod 15 to rotate through the speed reducer 14, and the rotating speed of the second connecting rod 15 is slow after the speed reducer 14 reduces the speed. As shown in fig. 1, when the second link 15 rotates clockwise around the horizontal rotating shaft 12 at the left side, the first link 13 is shifted, the tray 8 is pushed to move upwards when the first link 13 rotates, and when the first link 13 rotates and passes through the vertical position, the first link 13 cannot be supported by the second link 15, and at this time, the first link 13 rotates downwards rapidly under the action of the downward pushing force of the tray 8. The tray 8 and the sifter 3 fixed to the tray 8 fall rapidly so that the aggregates in the sifter 3 are impacted, facilitating the sifting of the aggregates. The utility model discloses when vibrating motor 4 carries out vibration screening to screening ware 3, can promote screening ware 3 slowly, then periodic quick striking downwards for thin aggregate passes the sifter that coarse aggregate reachd screening ware 3 easily, promotes the screening of aggregate. The second spring 11 can store energy when the screen 3 ascends, and release elastic potential energy when the screen 3 descends to improve the descending speed of the screen 3. Toggling the first link 13 to rotate through the second link 15 can release the supporting force after the first link 13 rotates past the vertical top, so that the first link 13 rotates quickly to ensure that the tray 8 descends quickly. After tray 8 descends fast, second connecting rod 15 continues to rotate and stirs first connecting rod 13 and rotate and promote tray 8 to rise once more, and the contact force of whole in-process second connecting rod 15 and first connecting rod 13 to and the contact force of first connecting rod 13 and tray 8 all are slowly increased, avoid the contact force sudden change to damage the connecting rod.
Specifically, the screen 3 comprises a plurality of sleeves 16 with screens 17 arranged at the bottoms, and the plurality of sleeves 16 are stacked between the guide rods 6. The upper end lower extreme of sleeve 16 all is equipped with the opening, and a plurality of sleeves 16 are from last to stacking up down, and every sleeve 16 bottom all is equipped with screen cloth 17, and screen cloth 17's diameter reduces from last to down gradually, forms the structure of multistage screening. A number of said sleeves 16 are placed in layers between said guide bars 6 and the sifter 3 is clamped by means of a tray 8 and clamping bars 7.
Specifically, shaking table 2 is equipped with support 18, support 18 is equipped with pivot 12, pivot 12 with first connecting rod 13 rotates and is connected. Through support 18 installation pivot 12, the installation of pivot 12 of being convenient for, the second connecting rod 15 of being convenient for stir first connecting rod 13, improve pivot 12 and shake the distance of platform 2 to improve the dynamics of sieve separator 3 downward striking.
Specifically, the output shaft of the speed reducer 14 is provided with a third connecting rod 19, the third connecting rod 19 is perpendicular to the output shaft of the speed reducer 14, the second connecting rod 15 is fixedly connected with the third connecting rod 19, and the second connecting rod 15 is parallel to the output shaft of the speed reducer 14. The second connecting rod 15 and the third connecting rod 19 are connected with an output shaft of the speed reducer 14 to form a Z shape, the second connecting rod 15 is perpendicular to the third connecting rod 19, the third connecting rod 19 is perpendicular to the output shaft of the speed reducer 14, and when the speed reducer 14 rotates, the second connecting rod 15 is driven to rotate around the rotating shaft 12, so that the first connecting rod 13 is pushed to rotate.
Specifically, the second spring 11 is a tension spring, the upper end of the second spring 11 is connected with the tray 8, and the lower end of the second spring is connected with the vibration table 2. The second spring 11 is subjected to a pulling force, and the tray 8 is pulled toward the vibration table by the second spring 11.
Specifically, first spring 5 is coil spring, first spring 5's upper end with shaking table 2 is connected, the lower extreme with base 1 is connected. The spiral spring of the base 1 supports the vibration table 2, the base 1 is fixed on the ground, and the vibration table is driven to vibrate when the motor vibrates.
Specifically, the vibration motor 4 includes a motor body 21 and an eccentric block 22 fixed on an output shaft of the motor body 21. An eccentric block 22 is provided on an output shaft of the motor body 21, and the eccentric block 22 rotates to generate vibration, thereby driving the vibration table 2 to vibrate.
Example 2
Referring to fig. 1 to 2, the present embodiment is different from embodiment 1 in that a cushion 20 is provided at a lower end of the guide bar 6, and the tray 8 is in contact with the cushion 20 when sliding to a lower limit position. When the tray 8 rapidly impacts downwards, the tray contacts with the buffer pad 20, the rotating shaft 12 and the tray 8 are prevented from being damaged, and the service lives of the tray 8 and the rotating shaft 12 are prolonged.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A multistage vibration screening device for aggregate tests is characterized by comprising a base, a vibration table, a screening device and a vibration motor, the upper part of the base is connected with the vibration table through a first spring, the vibration table is provided with the vibration motor and the guide rod, the guide rod is vertically fixed on the vibration table and is connected with a clamping rod and a tray in a sliding way, the sieve is arranged on the tray, the tray is provided with a screw rod penetrating through the clamping rod, the screw rod is provided with a nut pressing the clamping rod on the sieve, the tray is connected with the vibration table through a second spring, the vibration table is provided with a rotating shaft which is horizontally arranged, the rotating shaft is provided with a first connecting rod, an output shaft of the vibration motor is connected with the speed reducer, a second connecting rod is arranged at the eccentric position of the output shaft of the speed reducer, and the second connecting rod winds around the rotating shaft to rotate to push the first connecting rod to rotate.
2. The multi-stage vibratory screening apparatus of claim 1, wherein the screen includes a plurality of sleeves having screens at the bottoms thereof, the plurality of sleeves being stacked between the guide bars.
3. The multistage vibration screening device for the aggregate test is characterized in that the vibration table is provided with a support, the support is provided with the rotating shaft, and the rotating shaft is rotatably connected with the first connecting rod.
4. The multistage vibration screening device for the aggregate test according to claim 1, wherein a third connecting rod is arranged on the output shaft of the speed reducer, the third connecting rod is perpendicular to the output shaft of the speed reducer, the second connecting rod is fixedly connected with the third connecting rod, and the second connecting rod is parallel to the output shaft of the speed reducer.
5. The multistage vibratory screening device for the aggregate tests as recited in claim 1, wherein the second spring is a tension spring, the upper end of the second spring is connected with the tray, and the lower end of the second spring is connected with the vibration table.
6. The multistage vibration screening device for the aggregate test according to claim 1, wherein the first spring is a coil spring, the upper end of the first spring is connected with the vibration table, and the lower end of the first spring is connected with the base.
7. The multistage vibratory screening apparatus for aggregate testing of claim 1, wherein the guide bars are provided at lower ends thereof with cushions, and the tray is in contact with the cushions when sliding to a lower limit position.
8. The multistage vibratory screening device for aggregate tests of claim 1, wherein the vibration motor comprises a motor body and an eccentric block fixed on an output shaft of the motor body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121392496.3U CN214975647U (en) | 2021-06-22 | 2021-06-22 | A multistage vibration screening device for aggregate is experimental |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121392496.3U CN214975647U (en) | 2021-06-22 | 2021-06-22 | A multistage vibration screening device for aggregate is experimental |
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| Publication Number | Publication Date |
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| CN214975647U true CN214975647U (en) | 2021-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121392496.3U Active CN214975647U (en) | 2021-06-22 | 2021-06-22 | A multistage vibration screening device for aggregate is experimental |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114653595A (en) * | 2022-05-26 | 2022-06-24 | 江苏康世源药业有限公司 | Pharmacy production capsule screening plant |
| CN116079933A (en) * | 2023-04-12 | 2023-05-09 | 太原理工大学 | Resin mineral composite material preparation facilities that aggregate was arranged in order |
-
2021
- 2021-06-22 CN CN202121392496.3U patent/CN214975647U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114653595A (en) * | 2022-05-26 | 2022-06-24 | 江苏康世源药业有限公司 | Pharmacy production capsule screening plant |
| CN114653595B (en) * | 2022-05-26 | 2022-08-02 | 江苏康世源药业有限公司 | Pharmacy production capsule screening plant |
| CN116079933A (en) * | 2023-04-12 | 2023-05-09 | 太原理工大学 | Resin mineral composite material preparation facilities that aggregate was arranged in order |
| CN116079933B (en) * | 2023-04-12 | 2023-06-16 | 太原理工大学 | Resin mineral composite material preparation facilities that aggregate was arranged in order |
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