CN108043707B - Civil engineering is with novel categorised screening sand machine - Google Patents

Civil engineering is with novel categorised screening sand machine Download PDF

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Publication number
CN108043707B
CN108043707B CN201711293191.5A CN201711293191A CN108043707B CN 108043707 B CN108043707 B CN 108043707B CN 201711293191 A CN201711293191 A CN 201711293191A CN 108043707 B CN108043707 B CN 108043707B
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CN
China
Prior art keywords
sand
guide plate
plate
vibrating screen
sieve
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Expired - Fee Related
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CN201711293191.5A
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Chinese (zh)
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CN108043707A (en
Inventor
邱志刚
王婷婷
朱维伟
冯国建
杜俊
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Kunming University
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Kunming University
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Priority to CN201711293191.5A priority Critical patent/CN108043707B/en
Publication of CN108043707A publication Critical patent/CN108043707A/en
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Publication of CN108043707B publication Critical patent/CN108043707B/en
Expired - Fee Related legal-status Critical Current
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/28Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/005Transportable screening plants
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/42Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/4609Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B2201/00Details applicable to machines for screening using sieves or gratings
    • B07B2201/04Multiple deck screening devices comprising one or more superimposed screens

Abstract

The invention discloses a novel classification sand screening machine for civil engineering, which adopts the structural principle that three layers of vibration sand screening plates are sequentially arranged in an inner cavity of a shell from top to bottom at intervals, raw sand enters a first vibration sieve plate from a feed hopper at the top of the shell, falls into a second vibration sieve plate after being screened by the first vibration sieve plate, falls into a third vibration sieve plate after being screened by the second vibration sieve plate, and is guided out from a first sand outlet, a second sand outlet and a third sand outlet respectively by the guide of a first guide plate, a second guide plate and a third guide plate, and the rest raw sand is guided out from a fourth sand outlet by the guide of the third vibration sieve plate, so that the three-time screening and filtering are completed, thereby effectively realizing the full screening or classification filtering of the raw sand and improving the thoroughness of the raw sand screening; meanwhile, the device has the characteristics of compact structural layout, reasonable overall design, small occupied space, high working efficiency and strong practicability.

Description

Civil engineering is with novel categorised screening sand machine
Technical Field
The invention relates to the technical field of civil engineering mechanical equipment, in particular to a novel classification sand screening machine for civil engineering.
Background
The sand screening device is an indispensable instrument on a building construction site, the existing sand screening device is limited by the structure and usually depends on an obliquely-arranged metal net for screening, but the existing sand screening device has small screening area, cannot filter sand fully, often needs secondary screening on the filtered sand, wastes time and energy and has low screening efficiency; in addition, for being applied to various building construction sites, the method meets the requirements of different constructions on sand and other fine materials, the sand and other fine materials are classified according to different particle sizes, and then classified sand screening equipment which needs to be manually used is developed to screen the sand.
Chinese patent No. CN206199670U discloses a classification sand screening machine for civil engineering, which comprises a support frame, casters, caster fixing plates, an equipment box, a damper spring, a polarization motor, a sand screening box, a sand screening net, a feed inlet, a discharge outlet guard plate, etc.; the lower part of the classification sand screening machine is provided with a front support frame and a rear support frame which support the whole sand screening machine; a round rolling caster convenient to move is arranged below the support frame, and caster fixing plates are arranged on two sides of the caster; a damping box, a damping spring and a polarization motor are arranged in the equipment box; divide into the three section from top to bottom for the screening sand case, down screen sand case length reduces gradually from the top, and the feed inlet is established to the screening sand case top, and every section screening sand case edge establishes the discharge gate, and discharge gate department establishes the backplate. Each section of sand screening box is provided with sand screening nets with different apertures, and the apertures of the sand screening nets are sequentially reduced from top to bottom. The classifying sand screening machine has the advantages of convenient movement and quick sand screening, and is suitable for classifying fine materials such as sand with different particle sizes; but the classification screening sand machine for civil engineering of above-mentioned technical scheme exists: 1) the three-section layered structure is arranged, and sand screening is sequentially carried out layer by layer, so that the problem that the original sand of the first layer is discharged completely without screening due to more sand entering or thicker deposition and the like exists, and screening is insufficient; 2) the filtering and sand screening boxes on each layer are not obliquely arranged, the filtered sand grains are completely and gradually discharged through vibration, and the sand screening work efficiency is not high.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a novel classification sand screening machine for civil engineering, which adopts a structural design that an adjusting component is arranged between an upper edge and a lower edge, adopts a detachable connection mode for the upper edge, can effectively support chin bones with different neck diameters and lengths, has a simple structure and convenient use, and meets the clinical treatment and use requirements of complex environments.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a novel classification sand screening machine for civil engineering comprises a support, a shell arranged on the support and a sand screening assembly arranged in the shell, wherein a feed hopper is arranged at the top of the shell, and the sand screening assembly comprises a first vibrating sieve plate, a first guide plate, a second vibrating sieve plate, a second guide plate, a third vibrating sieve plate and a third guide plate which are sequentially arranged at intervals from top to bottom;
first vibrations sieve one end is articulated and is the slope setting with shells inner wall, and the hinged end of first vibrations sieve is the high-end and is close to the below of feeder hopper, first guide plate is the slope setting and opposite with the slope direction of first vibrations sieve, and the low side of first guide plate extends outside the casing, second vibrations sieve one end is articulated with shells inner wall and is the slope setting with first guide plate equidirectional slope, the second guide plate is the slope setting with second vibrations sieve opposite direction, and the low side of second guide plate extends outside the casing, third vibrations sieve one end is articulated with shells inner wall and is the slope setting with second guide plate equidirectional slope, the third guide plate is the slope setting with third vibrations sieve opposite direction, and the low side of third vibrations sieve and third guide plate all extends outside the casing, is close to first guide plate, second guide plate, A first sand outlet, a second sand outlet, a third sand outlet and a fourth sand outlet are respectively arranged on the shells at the lower ends of the third guide plate and the third vibrating sieve plate;
the vibrating screen plate is characterized by also comprising a driving device for driving the first vibrating screen plate, the second vibrating screen plate and the third vibrating screen plate to vibrate.
Furthermore, the driving device comprises a motor, a transmission shaft system, a first rotating shaft, a first eccentric wheel combination, a second rotating shaft, a second eccentric wheel combination, a third rotating shaft and a third eccentric wheel combination, the motor is arranged on a support beside the shell, and the first eccentric wheel combination, the second eccentric wheel combination and the third eccentric wheel combination are respectively arranged on the first rotating shaft, the second rotating shaft and the third rotating shaft and are respectively arranged on the lower surfaces of the first vibrating sieve plate, the second vibrating sieve plate and the second vibrating sieve plate;
the transmission shaft system transmits the power of the motor to the first rotating shaft, the second rotating shaft and the third rotating shaft respectively, so that the first rotating shaft, the second rotating shaft and the third rotating shaft drive the first eccentric wheel combination, the second eccentric wheel combination and the third eccentric wheel combination to synchronously rotate.
Further, the first eccentric wheel combination comprises at least two eccentric wheels which are arranged at intervals.
Furthermore, the second eccentric wheel combination and the third eccentric wheel combination have the same structure as the first eccentric wheel combination.
Furthermore, the first guide plate, the second guide plate and the third guide plate are respectively adapted to the vertical projection areas of the first vibrating screen plate, the second vibrating screen plate and the third vibrating screen plate.
Further, the sizes of the sieve pore diameters among the first vibrating sieve plate, the second vibrating sieve plate and the third vibrating sieve plate are different.
Further, the sizes of the sieve pore diameters of the first vibrating sieve plate, the second vibrating sieve plate and the third vibrating sieve plate are sequentially increased.
The sand outlet cover comprises a shell, and is characterized by further comprising a shield combination arranged outside the shell, wherein the shield combination comprises a first shield arranged outside the first sand outlet in a covering mode, a second shield arranged outside the second sand outlet in a covering mode, a third shield arranged outside the third sand outlet in a covering mode and a fourth shield arranged outside the fourth sand outlet in a covering mode, the first shield and the fourth shield are located on the same side, and the second shield and the third shield are located on the same side.
Further, the device also comprises a control unit and a power supply which are arranged on the bracket, wherein the motor and the power supply are electrically connected with the control unit.
Further, the bottom of the support is provided with a movable pulley.
The invention has the beneficial effects that:
1. the invention relates to a novel classification sand screening machine for civil engineering, which adopts the structural principle that three layers of vibration sand screening plates are sequentially arranged in an inner cavity of a shell from top to bottom at intervals, raw sand enters a first vibration sieve plate from a feed hopper at the top of the shell, falls into a second vibration sieve plate after being screened by the first vibration sieve plate, falls into a third vibration sieve plate after being screened by the second vibration sieve plate, and is guided out from a first sand outlet, a second sand outlet and a third sand outlet respectively by a first guide plate, a second guide plate and a third guide plate, and the rest raw sand is guided out from a fourth sand outlet by a third vibration sieve plate, so that the three-time screening and filtering of the entered raw sand is completed, thereby effectively realizing the full screening or classification filtering of the raw sand and improving the thoroughness of the raw sand screening.
2. The screening assembly is arranged in the inner cavity of the shell, screened sand grains are respectively discharged from different sand outlets, the driving device provides synchronous power transmission for three layers of vibrating screening sand, the structural layout is compact, the overall design is reasonable, the occupied space is small, and the arrangement space is effectively reduced.
3. The first vibrating sieve plate, the first guide plate, the second vibrating sieve plate, the second guide plate, the third vibrating sieve plate and the third guide plate are all obliquely arranged, and after raw sand enters the first vibrating sieve plate, the raw sand is synchronously vibrated under the power transmission of the driving device, and the raw sand can be rapidly screened only by starting the control unit, so that the labor intensity is effectively reduced, the production efficiency is greatly improved, and the sand screening device has the characteristics of simplicity in operation, convenience in use and high practicability.
Drawings
FIG. 1 is a schematic structural view of a new classification sand screening machine for civil engineering;
FIG. 2 is a schematic view of a portion of the structure of FIG. 1;
FIG. 3 is a schematic side view of the new classification sand screening machine for civil engineering of the present invention;
fig. 4 is a partial structural diagram of fig. 3.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.
In the description of the present application, it is to be understood that the terms "upper", "lower", and the like, indicate orientations or positional relationships based on those shown in fig. 1, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1-4, a new classification sand screening machine for civil engineering comprises a bracket 1, a shell 2 arranged on the bracket and a sand screening component 3 arranged in the shell, wherein a feed hopper 4 is arranged at the top of the shell, the feed hopper can be combined with the prior art and the feed inlet in a funnel form is required to be optimized in practical use, and can be designed into other structural forms meeting the requirement; the sand screening assembly comprises a first vibrating screen plate 31, a first guide plate 32, a second vibrating screen plate 33, a second guide plate 34, a third vibrating screen plate 35 and a third guide plate 36 which are sequentially arranged from top to bottom at intervals;
first vibrations sieve one end is articulated and is the slope setting with shells inner wall, and the hinged end of first vibrations sieve is the high-end and is close to the below of feeder hopper, first guide plate is the slope setting and opposite with the slope direction of first vibrations sieve, and the low side of first guide plate extends outside the casing, second vibrations sieve one end is articulated with shells inner wall and is the slope setting with first guide plate equidirectional slope, the second guide plate is the slope setting with second vibrations sieve opposite direction, and the low side of second guide plate extends outside the casing, third vibrations sieve one end is articulated with shells inner wall and is the slope setting with second guide plate equidirectional slope, the third guide plate is the slope setting with third vibrations sieve opposite direction, and the low side of third vibrations sieve and third guide plate all extends outside the casing, is close to first guide plate, second guide plate, A first sand outlet 21, a second sand outlet 22, a third sand outlet 23 and a fourth sand outlet 24 are respectively arranged on the shells at the lower ends of the third guide plate and the third vibrating screen plate; preferably, the sieve pore size between first vibrations sieve, second vibrations sieve and the third vibrations sieve is inequality, also can set up different sieve pore size series, and then satisfies the function use needs of categorised not equidimension grains of sand of becoming, also can carry out the dismouting when using simultaneously and change.
The vibrating screen plate also comprises a driving device 5 for driving the first vibrating screen plate, the second vibrating screen plate and the third vibrating screen plate to generate vibration; the motor and the power supply are electrically connected with the control unit, and the control unit can realize the starting of the motor and the on-off control of the rotating speed, so that the motor and the power supply are convenient to use.
The invention relates to a working principle of a novel classification sand screening machine for civil engineering, which comprises the following steps:
the technical scheme adopts a structural principle that three layers of vibrating screen sand plates are sequentially arranged in an inner cavity of a shell from top to bottom at intervals, raw sand firstly enters a first vibrating screen plate from a feed hopper at the top of the shell, the first vibrating screen plate is obliquely arranged, under the vibrating condition, the raw sand is screened or filtered for the first time through the first vibrating screen plate, filtered sand particles fall into a first guide plate which is obliquely arranged in the same way and are led out of the shell from a first sand outlet at the lower end of the first guide plate, and the rest raw sand falls into a second vibrating screen plate from the lower end of the first vibrating screen plate; according to the same principle, the second guide plate leads sand particles filtered by the second vibrating screen plate out of the shell from a second sand outlet at the lower end of the second guide plate, the rest original sand falls into a third vibrating screen plate, the third guide plate leads the sand particles filtered by the third vibrating screen plate out of the shell from a third sand outlet at the lower end of the third guide plate, and finally the rest original sand is led out of the shell from a fourth sand outlet at the lower end of the third vibrating screen plate; that is, original sand is filtered or filtered for three times after entering the shell, sand grains after filtering are respectively led out from the first sand outlet, the second sand outlet and the third sand outlet, and the rest original sand is led out from the fourth sand outlet, so that the original sand is effectively fully filtered or classified, and the completeness or thoroughness of original sand screening is greatly improved. Wherein, the screening subassembly sets up the inner chamber at the casing, and the sand grain after the screening is discharged respectively from the husky mouth of play of difference, and drive arrangement provides power for the husky confession of three-layer reciprocating sieve, has that structural layout is compact, overall design is reasonable and occupation space is little advantage, has effectively reduced arrangement space simultaneously. In addition, first vibrations sieve, first guide plate, second vibrations sieve, second guide plate, third vibrations sieve and third guide plate all adopt the slope setting, and after former husky got into first vibrations sieve, synchronous vibrations under drive arrangement's power transmission, and then realize automatic and quick categorised screening or filtration, only need start the control unit and can work, thereby effectively reduced intensity of labour, improved production efficiency greatly, have easy operation, convenient to use and practicality are strong characteristics.
As a preferred technical solution, the driving device includes a motor 51, a transmission shaft system 52, a first rotating shaft 53, a first eccentric wheel combination 54, a second rotating shaft 55, a second eccentric wheel combination 56, a third rotating shaft 57, and a third eccentric wheel combination 58, the motor is disposed on a bracket beside the housing, the first eccentric wheel combination, the second eccentric wheel combination, and the third eccentric wheel combination are respectively mounted on the first rotating shaft, the second rotating shaft, and the third rotating shaft, and are respectively disposed on the lower surfaces of the first vibrating screen plate, the second vibrating screen plate, and two ends of the first rotating shaft, the second rotating shaft, and the third rotating shaft can be respectively rotatably connected with the housing, for example, a bearing matching structure adopting a conventional mechanical technical means; the transmission shaft system transmits the power of the motor to the first rotating shaft, the second rotating shaft and the third rotating shaft respectively, so that the first rotating shaft, the second rotating shaft and the third rotating shaft drive the first eccentric wheel combination, the second eccentric wheel combination and the third eccentric wheel combination to synchronously rotate.
As a preferred technical solution, the first eccentric wheel assembly includes at least two eccentric wheels 541 arranged at intervals, preferably, the two eccentric wheels are respectively arranged at two sides close to the housing, an outer circumferential surface of the eccentric wheel contacts with a lower surface of the first vibrating screen plate to ensure structural strength and stability of the first vibrating screen plate for supporting and vibrating, and at the same time, a support plate is preferably arranged on the lower surface of the first vibrating screen plate contacting with the eccentric wheels to ensure reliability of operation of the first vibrating screen plate; preferably, the second eccentric wheel combination, the third eccentric wheel combination and the first eccentric wheel combination have the same structure, and manufacturing, replacement and dismounting of structural parts are facilitated.
As a preferred technical solution, the first guide plate, the second guide plate and the third guide plate are respectively adapted to the vertical projection areas of the first vibrating screen plate, the second vibrating screen plate and the third vibrating screen plate, that is, to ensure that the sand particles screened and filtered by the first vibrating screen plate, the second vibrating screen plate and the third vibrating screen plate can completely fall into the corresponding first guide plate, the second guide plate and the third guide plate below the first vibrating screen plate, the second vibrating screen plate and the third vibrating screen plate, so that the sand particles filtered and classified by the first guide plate, the second guide plate and the third guide plate can be completely guided or guided and discharged.
As a preferred technical scheme, the sizes of the sieve pore diameters of the first vibrating sieve plate, the second vibrating sieve plate and the third vibrating sieve plate are sequentially increased, so that the sand grains are screened from small to large, that is, the smallest sand grains are screened out first, then the larger sand grains are screened out sequentially, and further, the raw sand is fully screened or filtered.
As a preferred technical scheme, the sand screening device further comprises a shield assembly 6 arranged outside the shell, wherein the shield assembly comprises a first shield 61 covering the first sand outlet, a second shield 62 covering the second sand outlet, a third shield 63 covering the third sand outlet and a fourth shield 64 covering the fourth sand outlet, the first shield and the fourth shield are positioned on the same side, the second shield and the third shield are positioned on the same side, and the shield assembly is favorable for restraining screened or filtered and guided sand grains, so that the sand grains are prevented from scattering everywhere to facilitate collection, and the working environment is ensured to be clean; meanwhile, according to actual needs, the collecting containers can be correspondingly arranged below the first protective cover, the second protective cover, the third protective cover and the fourth protective cover, so that the labor force of the next work flow is reduced, and the work efficiency is improved.
As a preferred technical scheme, the bottom of the support is provided with a movable pulley 9, so that the support is convenient to carry or transfer and convenient to use.
According to the technical scheme, one or more vibrating sieve plates can be arranged on a third vibrating sieve plate according to the actual sand classifying and screening requirements, and correspondingly, a guide plate and a discharge hole are additionally arranged, and meanwhile, a transmission shaft system transmits and separates power, so that a plurality of types of sand particles with different sizes can be separated; meanwhile, in order to convey the sand, a conveying belt connected to the ground raw sand is arranged above the feed hopper by means of the prior art, so that the raw sand is continuously input, and the working efficiency is greatly improved.
The foregoing description and examples are exemplary only, and are not intended to limit the scope of the invention in any way. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention, and that such changes and modifications may be made without departing from the spirit and scope of the invention.

Claims (7)

1. The utility model provides a civil engineering is with novel categorised screening sand machine, includes support (1), sets up casing (2) on the support and sets up at inside screening sand subassembly (3) of casing, its characterized in that: the top of the shell is provided with a feed hopper (4), and the sand screening assembly comprises a first vibrating screen plate (31), a first guide plate (32), a second vibrating screen plate (33), a second guide plate (34), a third vibrating screen plate (35) and a third guide plate (36) which are sequentially arranged from top to bottom at intervals;
first vibrations sieve one end is articulated and is the slope setting with shells inner wall, and the hinged end of first vibrations sieve is the high-end and is close to the below of feeder hopper, first guide plate is the slope setting and opposite with the slope direction of first vibrations sieve, and the low side of first guide plate extends outside the casing, second vibrations sieve one end is articulated with shells inner wall and is the slope setting with first guide plate equidirectional slope, the second guide plate is the slope setting with second vibrations sieve opposite direction, and the low side of second guide plate extends outside the casing, third vibrations sieve one end is articulated with shells inner wall and is the slope setting with second guide plate equidirectional slope, the third guide plate is the slope setting with third vibrations sieve opposite direction, and the low side of third vibrations sieve and third guide plate all extends outside the casing, is close to first guide plate, second guide plate, A first sand outlet (21), a second sand outlet (22), a third sand outlet (23) and a fourth sand outlet (24) are respectively arranged on the shells at the lower ends of the third guide plate and the third vibrating screen plate;
the vibrating screen plate is characterized by also comprising a driving device (5) for driving the first vibrating screen plate, the second vibrating screen plate and the third vibrating screen plate to generate vibration;
the driving device comprises a motor (51), a transmission shaft system (52), a first rotating shaft (53), a first eccentric wheel combination (54), a second rotating shaft (55), a second eccentric wheel combination (56), a third rotating shaft (57) and a third eccentric wheel combination (58), wherein the motor is arranged on a support beside the shell, and the first eccentric wheel combination, the second eccentric wheel combination and the third eccentric wheel combination are respectively arranged on the first rotating shaft, the second rotating shaft and the third rotating shaft and are respectively arranged on the lower surfaces of the first vibrating screen plate, the second vibrating screen plate and the second vibrating screen plate;
the transmission shaft system transmits the power of the motor to the first rotating shaft, the second rotating shaft and the third rotating shaft respectively, so that the first rotating shaft, the second rotating shaft and the third rotating shaft drive the first eccentric wheel combination, the second eccentric wheel combination and the third eccentric wheel combination to synchronously rotate;
the first eccentric wheel combination comprises at least two eccentric wheels (541) which are arranged at intervals; the second eccentric wheel combination, the third eccentric wheel combination and the first eccentric wheel combination have the same structure.
2. The new classification sand screening machine for civil engineering as claimed in claim 1, characterized in that: the first guide plate, the second guide plate and the third guide plate are respectively adapted to the vertical projection areas of the first vibrating screen plate, the second vibrating screen plate and the third vibrating screen plate.
3. The new classification sand screening machine for civil engineering as claimed in claim 1, characterized in that: the sizes of the sieve pore diameters among the first vibrating sieve plate, the second vibrating sieve plate and the third vibrating sieve plate are different.
4. The new classification sand screening machine for civil engineering as claimed in claim 3, characterized in that: the sizes of the sieve pore diameters of the first vibrating sieve plate, the second vibrating sieve plate and the third vibrating sieve plate are sequentially increased.
5. The new classification sand screening machine for civil engineering as claimed in claim 1, characterized in that: still including setting up guard shield combination (6) in the casing outside, the guard shield combination is established including the cover at first guard shield (61) outside first sand outlet, cover and is established at second sand outlet second guard shield (62), cover and establish third guard shield (63) outside third sand outlet and cover and establish fourth guard shield (64) outside fourth sand outlet, first guard shield and fourth guard shield are in the same one side, second guard shield and third guard shield are in the same one side.
6. The new classification sand screening machine for civil engineering as claimed in claim 1, characterized in that: the device also comprises a control unit (7) and a power supply (8) which are arranged on the bracket, wherein the motor and the power supply are electrically connected with the control unit.
7. The new classification sand screening machine for civil engineering as claimed in claim 1, characterized in that: the bottom of the bracket is provided with a movable pulley (9).
CN201711293191.5A 2017-12-08 2017-12-08 Civil engineering is with novel categorised screening sand machine Expired - Fee Related CN108043707B (en)

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CN112830119B (en) * 2020-11-03 2022-04-22 北京智盛环控科技发展有限公司 Convenient for people service intelligent rubbish recycling and classifying device

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CN206262844U (en) * 2016-10-12 2017-06-20 武威小林商贸有限责任公司 A kind of classifying screen
CN107051870A (en) * 2017-05-08 2017-08-18 新乡市振英机械设备有限公司 A kind of dustless vibrating screen
CN107377389A (en) * 2017-08-31 2017-11-24 李明超 A kind of aggregate separated machine for building

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