CN108043707B - A new type of sand screening machine for civil engineering - Google Patents

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

A new type of sand screening machine for civil engineering

technical field

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

Background technique

Sand screening equipment is an indispensable equipment on construction sites. Due to structural limitations, the current sand screening devices often rely on an inclined metal mesh for screening, but the screening area is small and cannot be adequately screened. For sand filtration, it is often necessary to sieve the filtered sand twice, which is time-consuming and labor-intensive, and the sieving efficiency is too low; in addition, in order to be applied to various construction sites to meet the needs of different constructions for fine materials such as sand , Sand and other fine materials are often classified with different particle sizes, and then the classification and screening equipment that needs to be manually used has been developed to screen them.

The Chinese patent with the authorization announcement number CN206199670U discloses a sorting sand screening machine for civil engineering, including a support frame, casters, caster fixing plates, equipment boxes, shock absorption boxes, shock absorption springs, polarized motors, screening sand boxes, screening sand Net, feed port, discharge port, discharge port guard plate, etc.; there are front and rear support frames under the sand screening machine to support the whole sand screen machine; under the support frame there are circular rolling casters that are easy to move, on both sides of the casters There are caster fixing plates; shock-absorbing boxes, shock-absorbing springs and polarizing motors are installed in the equipment box; the screen sand box is divided into three sections up and down, and the length of the screen sand box gradually decreases from top to bottom. There is a discharge port at the edge of each section of the sieve sandbox, and a guard plate is provided at the discharge port. Each section of the sieve sandbox is provided with sieve meshes with different apertures, and the apertures decrease sequentially from top to bottom. The classification sand screening machine has the advantages of easy movement and fast sand screening, and is suitable for the classification of fine materials such as sand with different particle sizes; however, the classification sand screening machine for civil engineering in the above technical solution exists: 1) A three-section layered structure is set , and screen the sand layer by layer in turn, and then the original sand of the first layer will be discharged without being screened due to the reasons such as more sand entering or thick deposition, and there is a problem of insufficient screening; 2) Each layer of filter screen The sandbox is not tilted, and the filtered sand is gradually discharged by vibration, and the sand screening efficiency is not high.

SUMMARY OF THE INVENTION

In order to solve the above-mentioned technical problems, the purpose of the present invention is to provide a structural design that adopts an adjustment component between the upper edge and the lower edge, and the upper edge adopts a detachable connection method, which can adjust the chin bones of different neck diameters and lengths. It has a simple structure, is easy to use, and can meet the needs of clinical treatment in complex environments.

For achieving the above object, technical scheme of the present invention is as follows:

A new type of sand sorting and screening machine for civil engineering, comprising a bracket, a casing arranged on the bracket and a sand screening assembly arranged inside the casing, the top of the casing is provided with a feeding hopper, and the sand screening assembly includes The first vibrating screen plate, the first guide plate, the second vibrating screen plate, the second guiding plate, the third vibrating screen plate and the third guiding plate are arranged at intervals from top to bottom in sequence;

One end of the first vibrating sieve plate is hinged with the inner wall of the shell and is arranged obliquely. The inclination direction of the vibrating sieve plate is opposite, the lower end of the first guide plate extends out of the casing, one end of the second vibrating sieve plate is hinged with the inner wall of the casing and is inclined in the same direction as the first guide plate, and the first guide plate is inclined in the same direction. The two guide plates are inclined in the opposite direction to the second vibration sieve plate. The lower end of the second guide plate extends out of the casing. The third guide plate is inclined in the same direction, and the third guide plate is inclined in the opposite direction to the third vibration sieve plate. The casings at the lower ends of the guide plate, the second guide plate, the third guide plate and the third vibrating screen plate are respectively provided with a first sand outlet, a second sand outlet, a third sand outlet and a third sand outlet. four sand exits;

It also includes a driving device for driving the first vibrating sieve plate, the second vibrating sieve plate and the third vibrating sieve plate to generate vibration.

Further, the driving device includes 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, and the motor is provided in the casing. On the bracket on the side of the body, the first eccentric wheel combination, the second eccentric wheel combination and the third eccentric wheel combination are respectively installed on the first rotating shaft, the second rotating shaft and the third rotating shaft, and are respectively arranged on the first vibrating screen plate, the second vibrating sieve plate and the lower surface of 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 and the second eccentric wheel combination. It rotates synchronously with the third eccentric wheel combination.

Further, the first eccentric wheel assembly includes at least two eccentric wheels, which are arranged at intervals.

Further, the structure of the second eccentric wheel combination and the third eccentric wheel combination is the same as that of the first eccentric wheel combination.

Further, the first guide plate, the second guide plate and the third guide plate are adapted to the vertical projected areas of the first vibration screen plate, the second vibration screen plate and the third vibration screen plate respectively.

Further, the sieve apertures between the first vibrating sieve plate, the second vibrating sieve plate and the third vibrating sieve plate are different in size.

Further, the aperture sizes of the sieve holes of the first vibrating sieve plate, the second vibrating sieve plate and the third vibrating sieve plate are sequentially increased.

Further, it also includes a shield assembly arranged on the outside of the casing, and the shield assembly includes a first shield placed outside the first sand outlet, a second shield placed outside the second sand outlet, and a cover. The third shield located outside the third sand outlet and the fourth shield located outside the fourth sand outlet, the first shield and the fourth shield are on the same side, and the second shield is on the same side as the fourth shield. The third shield is on the same side.

Further, it also includes a control unit and a power supply arranged on the bracket, and the motor and the power supply are electrically connected to the control unit.

Further, the bottom of the bracket is provided with a moving pulley.

Beneficial effects of the present invention:

1. The present invention is a new type of sand sorting and screening machine for civil engineering, which adopts the structural principle of setting up three layers of vibrating screen sand plates at intervals from top to bottom in the inner cavity of the shell. A vibrating sieve plate falls into the second vibrating sieve plate after being screened by the first vibrating sieve plate, and then falls into the third vibrating sieve plate after being screened by the second vibrating sieve plate, and the filtered sand passes through the first guiding plate , The guidance of the second guide plate and the third guide plate are respectively led out from the first sand outlet, the second sand outlet and the third sand outlet, while the remaining original sand is guided from the first sand outlet by the third vibrating sieve plate. The four sand outlets are exported, and then the incoming original sand is screened and filtered three times, so as to effectively realize the full screening or classification filtering of the original sand, and improve the thoroughness of the original sand screening.

2. The screening assembly in the present invention is arranged in the inner cavity of the casing, the screened sand particles are discharged from different sand outlets respectively, and the driving device provides synchronous power transmission to the three-layer vibrating screen sand. The structure is compact and the overall structure is compact. Reasonable design, small footprint, effectively reducing the placement space.

3. The first vibrating sieve plate, the first guiding plate, the second vibrating sieve plate, the second guiding plate, the third vibrating sieve plate and the third guiding plate in the present invention are all inclined, and the original sand enters the first vibrating sieve plate. After the sieve plate is vibrated, it will vibrate synchronously under the power transmission of the driving device, and the original sand can be quickly screened only by starting the control unit, thereby effectively reducing the labor intensity and greatly improving the production efficiency. It has the advantages of simple operation and convenient use. and practical features.

Description of drawings

Fig. 1 is the front view structure schematic diagram of a kind of novel classification sand screening machine for civil engineering of the present invention;

Fig. 2 is the partial structure schematic diagram in Fig. 1;

Figure 3 is a schematic side view of the structure of a new type of sand sorting and screening machine for civil engineering according to the present invention;

FIG. 4 is a schematic diagram of a partial structure in FIG. 3 .

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings.

It should be noted that, unless otherwise specified, the technical or scientific terms used in this application should have the usual meanings understood by those skilled in the art to which the present invention belongs.

In the description of this application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", etc. is based on the orientation or positional relationship shown in FIG. 1 , which is only for the convenience of describing the present invention and simplifying the description. , rather than indicating or implying that the indicated device or element must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.

As shown in Figures 1-4, a new type of sand sorting and screening machine for civil engineering includes a bracket 1, a housing 2 arranged on the bracket, and a sand screening assembly 3 arranged inside the housing. The top of the housing is provided with There is a feeding hopper 4. The feeding hopper can be combined with the existing technology and actual use to require a feeding port in the form of a funnel. Of course, it can also be designed into other structural forms that meet the needs. The first vibrating screen plate 31, the first guiding plate 32, the second vibrating screen plate 33, the second guiding plate 34, the third vibrating screen plate 35 and the third guiding plate 36 are provided;

One end of the first vibrating sieve plate is hinged with the inner wall of the shell and is arranged obliquely. The inclination direction of the vibrating sieve plate is opposite, the lower end of the first guide plate extends out of the casing, one end of the second vibrating sieve plate is hinged with the inner wall of the casing and is inclined in the same direction as the first guide plate, and the first guide plate is inclined in the same direction. The two guide plates are inclined in the opposite direction to the second vibration sieve plate. The lower end of the second guide plate extends out of the casing. The third guide plate is inclined in the same direction, and the third guide plate is inclined in the opposite direction to the third vibration sieve plate. A first sand outlet 21 , a second sand outlet 22 and a third sand outlet are respectively provided on the casings at the lower ends of the guide plate, the second guide plate, the third guide plate and the third vibrating screen plate. 23 and the fourth sand outlet 24; preferably, the sieve apertures between the first vibrating sieve plate, the second vibrating sieve plate and the third vibrating sieve plate are different in size, that is, different sieve aperture series can be set , and then meet the functional needs of being classified into different sizes of sand grains, and can also be disassembled and replaced during use.

Also includes a drive device 5 for driving the first vibrating sieve plate, the second vibrating sieve plate and the third vibrating sieve plate to generate vibration; also includes a control unit 7 and a power supply 8 arranged on the bracket, the motor, power supply and control The unit is electrically connected, and the control unit can realize the on-off control of the starting and rotating speed of the motor, which is convenient to use.

The working principle of a new type of sorting sand screening machine for civil engineering of the present invention:

The above technical solution adopts the structural principle that three layers of vibrating screen sand plates are arranged in sequence from top to bottom in the inner cavity of the shell. The plate is inclined, and in the case of vibration, the original sand is screened or filtered for the first time by the first vibrating screen plate, and the filtered sand particles fall into the first guide plate which is also inclined and is lowered from the first guide plate. The first sand outlet at the end is led out of the casing, and the remaining raw sand falls from the lower end of the first vibrating sieve plate into the second vibrating sieve plate. Therefore, the filtered sand and the remaining original sand will not have mixing and interference effects when they fall; according to the same principle as above, the second guide plate will guide the sand filtered by the second vibrating sieve plate from the second guide plate. The second sand outlet at the low end leads out of the shell, and the remaining raw sand falls into the third vibrating sieve plate. The third sand outlet is led out of the shell, and the last remaining raw sand is led out of the shell from the fourth sand outlet at the lower end of the third vibration sieve plate; that is, the original sand is screened or filtered three times after entering the shell, The sand after screening and filtering is respectively exported from the first sand outlet, the second sand outlet and the third sand outlet, and the remaining original sand is exported from the fourth sand outlet, so as to effectively realize the full screening of the original sand or Classification filtering greatly improves the completeness or thoroughness of the original sand screening. Among them, the screening component is arranged in the inner cavity of the shell, and the screened sand particles are discharged from different sand outlets respectively, and the driving device provides power to the three-layer vibrating screen sand, which has the advantages of compact structure and layout, reasonable overall design and small occupied space. advantages, while effectively reducing the installation space. In addition, the first vibrating screen plate, the first guiding plate, the second vibrating screen plate, the second guiding plate, the third vibrating screen plate and the third guiding plate are all inclined, and the original sand enters the first vibrating screen plate Afterwards, it vibrates synchronously under the power transmission of the driving device, thereby realizing automatic and rapid classification screening or filtering. It only needs to start the control unit to work, thereby effectively reducing labor intensity and greatly improving production efficiency. Convenience and practicability.

As a preferred technical solution, the driving device includes a motor 51, a transmission shaft 52, a first rotating shaft 53, a first eccentric wheel assembly 54, a second rotating shaft 55, a second eccentric wheel assembly 56, a third rotating shaft 57 and The third eccentric wheel assembly 58, the motor is arranged on the bracket beside the casing, the first eccentric wheel assembly, the second eccentric wheel assembly and the third eccentric wheel assembly are respectively installed on the first rotating shaft, the second rotating shaft and the The third rotating shaft is arranged on the lower surface of the first vibrating sieve plate, the second vibrating sieve plate and the second vibrating sieve plate respectively. Rotational connection, such as a bearing matching structure using 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 are connected. The three rotating shafts drive the first eccentric wheel combination, the second eccentric wheel combination and the third eccentric wheel combination to rotate synchronously. Due to the well-known structural characteristics of the eccentric wheel, the first vibration screen plate, the second vibration screen plate or the third vibration screen plate Realize the up and down reciprocating motion to meet the needs of the vibration function.

As a preferred technical solution, the first eccentric wheel assembly includes at least two eccentric wheels 541, which are arranged at intervals. Preferably, the two eccentric wheels are respectively arranged on both sides near the casing. The lower surface of the first vibrating sieve plate is in contact to ensure the structural strength and stability of the first vibrating sieve plate being supported and vibrating. To ensure the reliability of the first vibrating screen plate; preferably, the second eccentric wheel combination and the third eccentric wheel combination have the same structure as the first eccentric wheel combination, which is conducive to the manufacture, replacement and disassembly of structural parts.

As a preferred technical solution, the first guide plate, the second guide plate and the third guide plate are respectively the vertical projections of the first vibration screen plate, the second vibration screen plate and the third vibration screen plate The area is adapted to ensure that the sand particles filtered by the first vibrating sieve plate, the second vibrating sieve plate and the third vibrating sieve plate can completely fall into the corresponding first guide plate and second guide plate below it. On the plate and the third guide plate, the sand particles filtered and classified can be completely connected or guided to be discharged.

As a preferred technical solution, the sieve apertures of the first vibrating sieve plate, the second vibrating sieve plate and the third vibrating sieve plate are sequentially increased in size, so that the sand particles are screened from small to large, that is, they are screened first. The smallest sand grains are then screened out in sequence, and then the larger sand grains are screened out, which in turn constitutes sufficient screening or filtration of the original sand.

As a preferred technical solution, it also includes a shield assembly 6 disposed outside the casing, the shield assembly including a first shield 61 disposed outside the first sand outlet, and a cover disposed outside the second sand outlet. The second shield 62, the third shield 63 placed outside the third sand outlet, and the fourth shield 64 placed outside the fourth sand outlet, the first shield and the fourth shield are in the same On one side, the second shroud and the third shroud are on the same side, and the shroud combination is beneficial to constrain the sand particles that are screened or filtered out, avoid being scattered everywhere for easy collection, and also help ensure work The environment is clean and tidy; at the same time, according to actual needs, collection containers can be correspondingly arranged under the first shield, the second shield, the third shield and the fourth shield to reduce the labor force of the next work process and improve the work efficiency.

As a preferred technical solution, the bottom of the bracket is provided with a moving pulley 9 for easy handling or transfer and convenient use.

According to the classification and screening machine for civil engineering according to the above technical solution, it is also possible to set one or more vibrating sieve plates on the third vibrating sieve plate according to the actual sand classification and screening needs, and correspondingly increase the guide plate And the discharge port, at the same time, the transmission shaft is used to transmit the separation power, so that more types of sand grains of different sizes can be separated; at the same time, in order to facilitate sand feeding, a connection to the feed hopper can be provided above the hopper by means of the existing technology. The conveyor belt of the original sand on the ground, and then continuously provide the input of the original sand, thus greatly improving the work efficiency.

The above descriptions and examples are exemplary only and do not limit the scope of the present invention in any way. It should be understood by those skilled in the art that the details and forms of the technical solutions of the invention can be modified or replaced without departing from the spirit and scope of the present invention, but these modifications and replacements all fall within the protection scope of the present 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).

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