CN108284066B

CN108284066B - Civil engineering is with categorised garrulous husky sieve sand machine

Info

Publication number: CN108284066B
Application number: CN201810069866.6A
Authority: CN
Inventors: 张翔宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-01-24
Filing date: 2018-01-24
Publication date: 2021-03-23
Anticipated expiration: 2038-01-24
Also published as: CN108284066A

Abstract

The invention discloses a sand classifying and screening machine for civil engineering, which adopts the design principle of combining classified sand screening with sand crushing, when in work, raw sand enters an inner cavity of a screen cylinder from a feed hopper, the screen cylinder in rotary motion enables the raw sand to be continuously screened, screened sand particles fall into a first guide plate and are discharged from a first sand discharge port, screened large-particle raw sand can continuously move towards the large end direction of the screen cylinder in the rotation process of the screen cylinder and further enters a grinding space through the guide port, the ground or crushed raw sand falls onto a screen plate from a discharge port, the screen plate is screened for the second time under the excitation of an eccentric wheel part, the screened sand particles fall into a second guide plate and are discharged from a third sand discharge port, and the rest raw sand is discharged from the second sand discharge port through the screen plate, so that the use function requirements of the crushed sand and the classified sand screening of the raw sand are effectively realized, and the sand screening machine has a compact structure, Convenient use, high wage efficiency and thorough or sufficient classification, and is suitable for popularization and application.

Description

Civil engineering is with categorised garrulous husky sieve sand machine

Technical Field

The invention relates to the technical field of civil engineering equipment, in particular to a classified sand crushing and screening machine for civil engineering.

Background

The sand screening machine is an indispensable instrument on civil engineering construction sites, the existing sand screening device is limited in 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, needs secondary screening on the filtered sand frequently, wastes time and energy and has low screening efficiency; in addition, for being applied to various building construction sites, satisfy the demand of different constructions to thin material such as sand, often carry out different particle diameters to thin material such as sand and classify, and then the categorised sand screening machine has appeared in the development, but current sand screening machine adopts the screen cloth of different mesh numbers to carry out multistage screening more, the vibration of cooperation vibration exciter is whole in order to realize quick sieve material, but present multistage screening machine ejection of compact structure is complicated at present, or only adopts a discharge gate, cause the condition that the compounding appears in the material later stage easily like this, whole ejection of compact operation is very loaded down with trivial details simultaneously, the operation is inconvenient.

Chinese patent publication No. CN 107309162 a discloses a classification sand screening machine for civil engineering, which comprises a screen box, wherein the top surface of the screen box is provided with a sand inlet, and a sand inlet hopper is welded and fixed at the sand inlet; the bottom of the screen box is of a conical structure, the bottommost end of the screen box is provided with a sand outlet, the sand outlet is in butt joint with a sand outlet pipe in a welding mode, the locking nut is loosened, then the rotating shaft is rotated to enable the screen to incline towards the lower part of the rear side, sand and stone materials on the screen can roll into the collecting hopper through the front end opening of the collecting hopper, then roll into the discharging hose through the rear end outlet of the collecting hopper, and finally are discharged from the discharging hose.

But the classification sand screening machine for civil engineering of the technical scheme comprises the following components: 1) the mode that the locking nut is manually loosened and tightened each time to enable the screen to incline downwards and discharge sand is adopted, manual whole-course operation control is needed, the intelligent degree is not high, the sand screening working efficiency is low, and static inclined sand discharge often generates leaving or incomplete discharge; 2) although a three-stage excitation screening layered structure is arranged, the first-stage screen is easily discharged without screening due to more raw sand or thicker sediment and the like, and the screening is insufficient; 3) the sand grains with larger grains can not be decomposed for screening and utilization, and the problem that the sand can only be screened but not be crushed as the traditional sand screening machine.

Disclosure of Invention

In order to solve the technical problems, the invention aims to provide a classified sand crushing and screening machine for civil engineering, which adopts a design principle of combining classified sand sieving and sand crushing, can effectively solve the problems of insufficient classified screening and low working efficiency in the prior art, has the sand crushing capability, can effectively improve the utilization rate of original sand, and has the characteristics of compact structure and convenient use.

In order to achieve the purpose, the technical scheme of the invention is as follows:

the utility model provides a civil engineering is with categorised garrulous husky sieve screen of sand, includes chassis, casing, the garrulous subassembly of sieve, second grade screening subassembly and actuating mechanism of one-level, the casing sets up on the chassis, the garrulous subassembly of sieve includes a sieve section of thick bamboo, feeder hopper, grinding cylinder and first stock guide of one-level, a sieve section of thick bamboo is the cone form and is the inner chamber upper portion that transversely rotates to connect at the casing, has dull polish portion and extends the outer transmission portion of casing at the main aspects end of a sieve section of thick bamboo, and it has a plurality of guide openings to open on the circumference wall near a sieve section of thick bamboo main aspects, it has the through-hole to open at the tip of a sieve section of thick bamboo, the feeder hopper sets up in casing one side and communicates with the through-hole, grinding cylinder is the cone form that suits with a sieve section of thick bamboo, and grinding cylinder's main aspects are installed on the casing and are opened on the circumference wall near grinding cylinder main aspects has a plurality of discharge openings, the first material guide plate is obliquely arranged below the screen drum, and the lower end of the first material guide plate extends out of the casing;

the second-stage screening assembly comprises a screen plate, an eccentric wheel part, a second material guide plate and an elastic part, wherein the screen plate is obliquely arranged below the discharge port, the oblique direction of the screen plate is consistent with that of the first material guide plate, the high end of the screen plate is rotationally connected with the casing, the low end of the screen plate extends out of the casing, the eccentric wheel part is arranged on the lower surface of the screen plate, the second material guide plate is obliquely arranged below the screen plate, the oblique direction of the second material guide plate is opposite to that of the first material guide plate, the high end of the second material guide plate is connected with the screen plate, the low end of the second material guide plate extends out of the casing, two ends of the elastic part are respectively connected with the lower surface of the second material guide plate at the bottom of the casing, and the casing bodies close to the low ends of the first material guide plate, the screen plate and the second material guide plate are respectively provided with a first sand;

the driving mechanism comprises a first driving part for driving the transmission part to rotate and a second driving part for driving the eccentric wheel part to rotate.

Further, the high end of the first stock guide is connected with the small end torsion spring of the grinding cylinder, a circular ring is arranged on the circumference of the screen cylinder, at least two protrusions are uniformly distributed on the circular ring by taking the axis of the circular ring as the center, the first stock guide is always in contact with the circular ring under the action of torsion of the torsion spring, and when the grinding cylinder rotates, the protrusions and the circular ring are in contact with the first stock guide intermittently so as to realize vibration of the first stock guide.

Further, the eccentric wheel portion includes the pivot of being connected with the power take off end of second actuating mechanism and is a plurality of eccentric wheels of interval setting on the pivot.

Furthermore, a supporting plate is arranged on the lower surface of the screen plate and at the contact position of the screen plate and the eccentric wheel.

Further, the mesh hole diameters of the screen drum and the screen plate are different.

Furthermore, a baffle is arranged at the edge of the material guide opening facing one side of the small end of the screen cylinder.

Further, the feeder hopper includes that the slope becomes certain contained angle and sets firmly the feed cylinder in casing one side, set up in the feed cylinder bottom and with through-hole turn-on fit's connecting portion and be located the feed inlet at feed cylinder top, the border is higher than under the feed inlet in the longitudinal direction the last border of connecting portion.

Further, still including setting up the guard shield combination in the casing outside, the guard shield combination is established at the outer second guard shield of second row of husky mouth and is established the outer third guard shield of third row of husky mouth including the cover at the outer first guard shield of first row of husky mouth, cover, first guard shield is in same one side with the second guard shield, the third guard shield is in relative one side with first guard shield.

Further, the device also comprises a control unit and a power supply which are arranged on the bracket, and the driving mechanism and the power supply are electrically connected with the control unit.

Furthermore, the bottom of the bottom frame is provided with a movable pulley.

The invention has the beneficial effects that:

the technical scheme includes that the sand screening machine comprises an underframe, a machine shell, a primary crushing and screening component, a secondary screening component and a driving mechanism, a design principle of combining classified screening sand and crushed sand is adopted, a screen cylinder is matched with a grinding cylinder by a first driving part, and the primary crushing and screening component and the secondary screening component are arranged at intervals from top to bottom; when the sand screening machine works, raw sand enters an inner cavity of a screen cylinder from a feed hopper through holes, the screen cylinder is driven by a first driving part to do rotary motion, so that the raw sand is continuously screened by the screen cylinder, screened sand grains fall onto a first material guide plate through screen holes of the screen cylinder and are discharged from a first sand discharge port, because the screen cylinder adopts a cone-shaped structural design, the screened large-particle raw sand can continuously move towards the large end direction of the screen cylinder in the rotating process of the screen cylinder and then enters a frosted space through the material guide ports, the frosted space utilizes the rotary motion of the screen cylinder to ensure that the frosted part and the inner wall of the grinding cylinder continuously rub and extrude, so that the effect of grinding or crushing the raw sand is achieved, the ground or crushed raw sand falls onto a screen plate from the material discharge port, the screen plate is screened for the second time under the excitation of an eccentric wheel part, the screened sand grains fall onto a second material guide plate and are discharged from a third sand discharge port, and finally, the residual raw sand is discharged from the second sand discharge port through the screen plate, so that the use function requirements of the crushed sand and the classified sand screening of the raw sand are effectively met, the characteristics of compact structure, convenience in use, high wage efficiency and thorough classification are achieved, the utilization rate of the raw sand can be greatly improved, and the method is suitable for popularization and application.

Drawings

FIG. 1 is a front view of a classification sand crushing and screening machine for civil engineering of the present invention;

FIG. 2 is a schematic structural diagram of a secondary screening assembly of a classification sand crushing and screening machine for civil engineering of the present invention;

fig. 3 is a schematic cross-sectional view of a screen cylinder of a classification sand crushing and screening machine for civil engineering of the present invention.

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.

As shown in fig. 1-3, a classification sand crushing and screening machine for civil engineering, comprising a chassis 1, a casing 2, a first-level sand crushing and screening component 3, a second-level screening component 4 and a driving mechanism 5, wherein the casing is arranged on the chassis, the first-level sand crushing and screening component comprises a screen cylinder 31, a feed hopper 32, a grinding cylinder 33 and a first material guide plate 34, the screen cylinder is cone-shaped and is transversely connected on the upper part of an inner cavity of the casing in a rotating way, a frosting part 311 and a transmission part 312 extending out of the casing are arranged at the end part of the big end of the screen cylinder, a plurality of material guide openings 313 are arranged on the circumferential wall close to the big end of the screen cylinder, a through hole 314 is arranged at the small end of the screen cylinder, the feed hopper is arranged on one side of the casing and communicated with the through hole, the grinding cylinder is cone-shaped and is arranged on the casing, the big end of the grinding cylinder is arranged on the circumferential wall close to the big end of the grinding cylinder, the small end of the grinding, a frosted space is formed between the frosted part and the inner wall of the grinding cylinder, the first material guide plate is obliquely arranged below the screen cylinder, and the lower end of the first material guide plate extends out of the shell;

the second-stage screening assembly comprises a screen plate 41, an eccentric wheel part 42, a second material guide plate 43 and an elastic part 44, the screen plate is obliquely arranged below the discharge port, the oblique direction of the screen plate is consistent with that of the first material guide plate, the high end of the screen plate is rotatably connected with the casing, the low end of the screen plate extends out of the casing, the eccentric wheel part is arranged on the lower surface of the screen plate, the second material guide plate is obliquely arranged below the screen plate, the oblique direction of the second material guide plate is opposite to that of the first material guide plate, the high end of the second material guide plate is connected with the screen plate, the low end of the second material guide plate extends out of the casing, two ends of the elastic part are respectively connected with the lower surface of the second material guide plate at the bottom of the casing, and the casing body close to the low ends of the first material guide plate, the screen plate and the second material guide plate is respectively provided with a first sand discharge port 21;

the driving mechanism comprises a first driving part 51 for driving the transmission part to rotate and a second driving part 52 for driving the eccentric wheel part to rotate;

as a further improvement to the above technical scheme, the high end of the first stock guide is connected with the small end torsional spring of the grinding cylinder, the circumference of the screen cylinder is provided with a ring 315, the ring is uniformly provided with at least two protrusions 316 by taking the axis of the ring as the center, under the action of torsional spring torque, the first stock guide is always in contact with the ring, and when the grinding cylinder rotates, the protrusions and the ring are in intermittent contact with the first stock guide, so that the first stock guide vibrates by utilizing the output power of the first driving part, thereby being beneficial to screening sand falling into the first stock guide and discharging rapidly from the first stock guide, and avoiding sand retention on the first stock guide.

This technical scheme is with categorised broken sand screening sand machine's theory of operation:

according to the technical scheme, a structural design combining sand screening and sand crushing is adopted, a screen cylinder is matched with a grinding cylinder by using a first driving part, and a primary crushing screen assembly and a secondary screening assembly are arranged at intervals from top to bottom; when the sand screening machine works, raw sand enters an inner cavity of a screen cylinder from a feed hopper through holes, the screen cylinder is driven by a first driving part to do rotary motion, so that the raw sand is continuously screened by the screen cylinder, screened sand grains fall onto a first material guide plate through screen holes of the screen cylinder and are discharged from a first sand discharge port, because the screen cylinder adopts a cone-shaped structural design, the screened large-particle raw sand can continuously move towards the large end direction of the screen cylinder in the rotating process of the screen cylinder and then enters a frosted space through the material guide ports, the frosted space utilizes the rotary motion of the screen cylinder to ensure that the frosted part and the inner wall of the grinding cylinder continuously rub and extrude, so that the effect of grinding or crushing the raw sand is achieved, the ground or crushed raw sand falls onto a screen plate from the material discharge port, the screen plate is screened for the second time under the excitation of an eccentric wheel part, the screened sand grains fall onto a second material guide plate and are discharged from a third sand discharge port, and finally, the residual original sand is discharged from the second sand discharge port through the screen plate, so that the use function requirements of the original sand crushing and classification screening are effectively met, and the novel sand screening machine has the characteristics of compact structure, convenience in use, high wage efficiency, thorough or sufficient classification and multiple functions, can greatly improve the utilization rate of the original sand, and is suitable for popularization and application.

As a preferable technical solution, the eccentric wheel portion includes a rotating shaft 421 connected to a power output end of the second driving mechanism and a plurality of eccentric wheels 422 arranged on the rotating shaft at intervals, and in order to ensure stability and structural reliability of the vibration of the screen plate, a support plate 411 is preferably arranged on a lower surface of the screen plate and at a contact position with the eccentric wheels.

As a preferred technical scheme, the mesh hole diameters of the screen drum and the screen plate are different, so that sand grains with different sizes can be screened and classified, and different use function requirements are met.

As a preferable technical scheme, the baffle 317 is arranged at the edge of the material guiding opening facing to the small end side of the screen cylinder, so that sand discharged from the material guiding opening can be prevented from leaking onto the first material guiding plate, and the requirement of the overall design function is met.

As a preferred technical scheme, the feed hopper comprises a charging barrel 321, a connecting part 322 and a feed inlet 323, wherein the charging barrel 321 is inclined to form a certain included angle and fixedly arranged on one side of the shell, the connecting part 322 is arranged at the bottom of the charging barrel and is in conduction fit with the through hole, the feed inlet 323 is positioned at the top of the charging barrel, raw sand can be conveniently placed into the feed hopper, the lower edge of the feed inlet is higher than the upper edge of the connecting part in the longitudinal direction, so that the raw sand cannot be poured out from the feed inlet, and the raw.

As a preferable technical solution, the sand-cleaning device further comprises a shield assembly 6 arranged outside the housing, wherein the shield assembly comprises a first shield 61 covering the first sand discharge port, a second shield 62 covering the second sand discharge port, and a third shield 63 covering the third sand discharge port, the first shield and the second shield are positioned on the same side, and the third shield and the first shield are positioned on the opposite side; the arrangement of the shield combination is beneficial to classification control of sand grains which are screened or filtered and led out, scattering or mixing at any place is avoided so as to be convenient for collection, and the cleanness of a working environment can be ensured; simultaneously according to actual need, can correspond in the below of first guard shield, second guard shield and third guard shield and set up the collection container to reduce the labour of next work flow, improve work efficiency.

The driving mechanism and the power supply are electrically connected with the control unit, and the control unit is used for controlling the start-stop, the rotating speed and other parameters of the first driving part and the second driving part to be integrally controlled, so that the operation is simple.

Preferably, the bottom of the base frame is provided with a movable pulley 11, so that the convenience of carrying or transferring can be improved.

According to the technical scheme, the classified sand crushing and screening machine for civil engineering can be used for separating more types of sand grains with different sizes by arranging a three-stage screening component with the same structural form as the secondary screening component below the secondary screening component according to the actual sand grain classified screening requirement and matching power with the first driving part; meanwhile, in order to convey the sand, a conveying belt connected to the ground raw sand is arranged above the feed inlet by means of the prior art, so that the automatic input of the raw sand can be continuously provided, 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

1. The utility model provides a civil engineering is with categorised garrulous husky sieve machine of sand, includes chassis (1), casing (2), one-level garrulous sieve subassembly (3), second grade screening subassembly (4) and actuating mechanism (5), its characterized in that: the casing sets up on the chassis, the garrulous subassembly of one-level includes a sieve section of thick bamboo (31), feeder hopper (32), a mill section of thick bamboo (33) and first stock guide (34), a sieve section of thick bamboo is the cone form and is the horizontal rotation and connects on the inner chamber upper portion of casing, has dull polish portion (311) and extends the outer transmission portion (312) of casing at the main aspects end of a sieve section of thick bamboo, and it has a plurality of guide openings (313) to open on the circumference wall near a sieve section of thick bamboo main aspects, it has through-hole (314) to open at the tip of a sieve section of thick bamboo, the feeder hopper sets up in casing one side and communicates with the through-hole, a mill section of thick bamboo is the cone form that suits with a sieve section of thick bamboo, the tip of a mill section of thick bamboo is installed on the casing and is opened on the circumference wall near a mill section of thick bamboo main aspects and has a plurality of discharge openings (331), the tip cover of a mill section of thick bamboo is established outside the guide opening of thick, the lower end of the first material guide plate extends out of the shell;

the secondary screening component comprises a screen plate (41), an eccentric wheel part (42), a second material guide plate (43) and an elastic part (44), the screen plate is obliquely arranged below the discharge port, the oblique direction of the screen plate is consistent with that of the first material guide plate, the high end of the screen plate is rotationally connected with the casing, the low end of the screen plate extends out of the casing, the eccentric wheel part is arranged on the lower surface of the screen plate, the second material guide plate is obliquely arranged below the screen plate, the oblique direction of the second material guide plate is opposite to that of the first material guide plate, the high end of the second material guide plate is connected with the screen plate, the low end of the second material guide plate extends out of the casing, two ends of the elastic piece are respectively connected with the lower surface of the second material guide plate at the bottom of the machine shell, and the machine shell close to the lower ends of the first material guide plate, the screen plate and the second material guide plate is respectively provided with a first sand discharge port (21), a second sand discharge port (22) and a third sand discharge port (23);

the driving mechanism comprises a first driving part (51) for driving the transmission part to rotate and a second driving part (52) for driving the eccentric wheel part to rotate.

2. The classification sand crushing and screening machine for civil engineering as claimed in claim 1, wherein: the high end of first stock guide and the tip end torsional spring of grinding a section of thick bamboo are connected, be equipped with ring (315) on the circumference of a sieve section of thick bamboo, use the ring axle center to be equipped with two at least archs (316) as the central equipartition on the ring, under torsional spring torsion effect, first stock guide contacts with the ring all the time, and when a sieve section of thick bamboo rotates, protruding and ring are interrupted and first stock guide contact to realize first stock guide vibration.

3. The classification sand crushing and screening machine for civil engineering as claimed in claim 1, wherein: the eccentric wheel part comprises a rotating shaft (421) connected with the power output end of the second driving mechanism and a plurality of eccentric wheels (422) arranged on the rotating shaft at intervals.

4. The classification sand crushing and screening machine for civil engineering as claimed in claim 3, wherein: and a bearing plate (411) is arranged on the lower surface of the screen plate and at the contact part of the lower surface of the screen plate and the eccentric wheel.

5. The classification sand crushing and screening machine for civil engineering as claimed in claim 1, wherein: the screen drum and the screen plate have different screen hole diameters.

6. The classification sand crushing and screening machine for civil engineering as claimed in claim 1, wherein: and a baffle (317) is arranged at the edge of the material guide opening facing one side of the small end of the screen drum.

7. The classification sand crushing and screening machine for civil engineering as claimed in claim 1, wherein: the feed hopper comprises a charging barrel (321) which is inclined to form a certain included angle and fixedly arranged on one side of the shell, a connecting part (322) which is arranged at the bottom of the charging barrel and is in conduction fit with the through hole, and a feeding hole (323) which is positioned at the top of the charging barrel, wherein the lower edge of the feeding hole is higher than the upper edge of the connecting part in the longitudinal direction.

8. The classification sand crushing and screening machine for civil engineering as claimed in claim 1, wherein: still including setting up guard shield combination (6) in the casing outside, the guard shield combination is established at the outer first guard shield (61) of first row of husky mouth, cover including the cover and is established at the outer second guard shield (62) of second row of husky mouth and cover and establish third guard shield (63) outside the third row of husky mouth, first guard shield and second guard shield are in same one side, the third guard shield is in relative one side with first guard shield.

9. The classification sand crushing and screening machine for civil engineering as claimed in claim 1, wherein: the device also comprises a control unit and a power supply which are arranged on the bracket, and the driving mechanism and the power supply are electrically connected with the control unit.

10. The classification sand crushing and screening machine for civil engineering as claimed in claim 1, wherein: the bottom of the underframe is provided with a movable pulley (11).