CN108043707A - A kind of civil engineering novel classification sand sieving machine - Google Patents

Abstract

The invention discloses a new classifying sand screening machine for civil engineering, which adopts the structural principle that three layers of vibrating sand screening plates are arranged in sequence from top to bottom in the inner cavity of the shell, and the raw sand enters the first stage from the feeding hopper on the top of the shell. The first 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 guide plate , the second guide plate, and the third guide plate are guided respectively from the first sand outlet, the second sand outlet and the third sand outlet, and the remaining raw sand is guided from the third sand outlet by the third vibrating sieve plate. The fourth sand outlet is exported, and then three screening and filtering are completed, so as to effectively realize the full screening or classification filtering of the raw sand, and improve the thoroughness of the raw sand screening; at the same time, it has a compact structure layout, a reasonable overall design, a small footprint, and easy work. High 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 mechanical equipment, in particular to a novel classification sand screening machine for civil engineering.

Background technique

Sand screening equipment is an indispensable device on the construction site. Due to structural limitations, the current sand screening device often relies on a metal mesh placed at an angle for screening, but its screening area is small and cannot be fully used. To filter the sand, it is often necessary to sieve the filtered sand a second time, resulting in time-consuming and laborious, 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 , often classify sand and other fine materials with different particle sizes, and then develop the classification and sieving equipment that requires manual use to sieve them.

The Chinese patent with authorized notification number CN206199670U discloses a sorting sand screening machine for civil engineering, including support frame, casters, caster fixing plate, equipment box, shock absorbing box, shock absorbing spring, polarization motor, sand screening box, sand screening Net, material inlet, material outlet, material outlet guard plate, etc.; there are front and rear support frames under the classification sand screening machine to support the whole sand screening machine; there are round rolling casters under the support frame that are easy to move, and the two sides of the casters are There are caster fixing plates; shock absorbing box, shock absorbing spring and polarized motor are placed in the equipment box; the upper and lower parts of the sand screening box are divided into three sections, and the length of the sand screening box gradually decreases from top to bottom. There is a discharge opening on the edge of each section of the sand screening box, and a guard plate is provided at the discharge opening. Sand screens with different apertures are installed on each section of the sand screen box, and the apertures decrease sequentially from top to bottom. This sorting sand screening machine has the advantages of being easy to move and fast sand screening, and is suitable for the classification of fine materials such as sand with different particle sizes; but the civil engineering classification sand screening machine of the above-mentioned technical scheme exists: 1) three-section layered structure is set , and sieve the sand layer by layer, and then the original sand of the first layer will be discharged without being screened completely due to reasons such as more sand entering or thicker deposition, and there is a problem of insufficient screening; 2) Each layer of filter screen The sand box is not inclined, and the filtered sand is completely discharged through vibration, and the sand screening efficiency is not high.

Contents of the invention

In order to solve the above-mentioned technical problems, the object of the present invention is to provide a structural design with an adjustment component between the upper edge and the lower edge, and the upper edge adopts a detachable connection method, which can adjust the mandibles with different neck diameters and lengths. It has a simple structure, easy to use and meets the needs of clinical treatment in complex environments with a new type of sand screening machine for civil engineering.

To achieve the above object, the technical scheme of the present invention is as follows:

A new classifying sand screening machine for civil engineering, comprising a bracket, a housing arranged on the bracket, and a sand screening assembly arranged inside the housing, the top of the housing is provided with a feeding hopper, and the sand screening assembly includes 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 arranged at intervals from top to bottom;

One end of the first vibrating sieve plate is hinged to the inner wall of the housing and is inclined. The inclination direction of the vibrating sieve plate is opposite, the lower end of the first guide plate extends out of the shell, one end of the second vibrating sieve plate is hinged to the inner wall of the shell and is inclined in the same direction as the first guide plate, the first guide plate The second guide plate is inclined in the opposite direction to the second vibrating sieve plate, the lower end of the second guide plate extends out of the shell, and one end of the third vibrating sieve plate is hinged to the inner wall of the shell and is connected to the second guide plate The third guide plate is inclined in the opposite direction to the third vibrating sieve plate, and the lower ends of the third vibrating sieve plate and the third guide plate both extend out of the shell and are close to the first guide plate. The first sand outlet, the second sand outlet, the third sand outlet and the four sand outlets;

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 arranged on the housing On the bracket next to 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 combination.

Further, the first combination of eccentric wheels includes at least two eccentric wheels 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 vibrating sieve plate, the second vibrating sieve plate and the third vibrating sieve plate respectively.

Further, the sieve apertures of 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 first vibrating sieve plate, the second vibrating sieve plate and the third vibrating sieve plate increase sequentially.

Further, it also includes a shield combination arranged on the outside of the casing, the shield combination includes a first shield disposed outside the first sand outlet, a second shield disposed outside the second sand outlet, a cover The third guard shield outside the third sand outlet and the fourth shield arranged outside the fourth sand outlet, the first shield and the fourth shield are on the same side, and the second shield and the fourth shield are on the same side. The third shroud 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, a moving pulley is provided at the bottom of the support.

Beneficial effects of the present invention:

1. The present invention is a new classifying sand screening machine for civil engineering. It adopts the structural principle that three layers of vibrating sand screening plates are arranged in sequence from top to bottom in the inner cavity of the shell. The first 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 guide plate , the second guide plate, and the third guide plate are guided from the first sand outlet, the second sand outlet and the third sand outlet respectively, and the remaining raw sand is guided from the first sand outlet by the third vibrating sieve plate. The four sand outlets are exported, and then the incoming raw sand is screened and filtered three times, thereby effectively realizing the full screening or classified filtering of the raw sand, and improving the thoroughness of the raw sand screening.

2. The screening assembly in the present invention 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 synchronous power transmission for the three-layer vibrating sand screening. The structure layout is compact and the overall Reasonable design, small footprint, effectively reducing the placement space.

3. In the present invention, 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 inclined, and the raw sand enters the first After vibrating the sieve plate, it vibrates synchronously under the power transmission of the driving device, and the raw sand can be quickly screened by simply starting the control unit, thereby effectively reducing labor intensity and greatly improving production efficiency. It is simple to operate and easy to use. And practical features.

Description of drawings

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

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

Fig. 3 is the side view structure schematic diagram of a kind of civil engineering novel classification sand screening machine of the present invention;

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

Detailed ways

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

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

In the description of the present 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 Figure 1, and is only for the convenience of describing the present invention and simplifying the description , rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention.

As shown in Figures 1-4, a new type of sand screening machine for civil engineering, including 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 set There is a feed hopper 4, the feed hopper can be combined with the existing technology and the actual use requires a feed inlet in the form of a funnel, and of course it can also be designed to meet the needs of other structural forms; the sand screening assembly includes sequential spacing from top to bottom The first vibrating sieve plate 31, the first guide plate 32, the second vibrating sieve plate 33, the second guide plate 34, the third vibrating sieve plate 35 and the third guide plate 36 are provided;

One end of the first vibrating sieve plate is hinged to the inner wall of the housing and is inclined. The inclination direction of the vibrating sieve plate is opposite, the lower end of the first guide plate extends out of the shell, one end of the second vibrating sieve plate is hinged to the inner wall of the shell and is inclined in the same direction as the first guide plate, the first guide plate The second guide plate is inclined in the opposite direction to the second vibrating sieve plate, the lower end of the second guide plate extends out of the shell, and one end of the third vibrating sieve plate is hinged to the inner wall of the shell and is connected to the second guide plate The third guide plate is inclined in the opposite direction to the third vibrating sieve plate, and the lower ends of the third vibrating sieve plate and the third guide plate both extend out of the shell and are close to the first guide plate. The housing at the lower end of the guide plate, the second guide plate, the third guide plate and the third vibrating sieve plate is respectively provided with a first sand outlet 21, a second sand outlet 22, and a third sand outlet. 23 and the fourth sand outlet 24; preferably, the sieve hole sizes between the first vibrating sieve plate, the second vibrating sieve plate and the third vibrating sieve plate are different, that is, different sieve hole diameter series can be set , and then meet the functional requirements of being classified into sand grains of different sizes, and can also be disassembled and replaced during use.

It also includes a driving device 5 for driving the first vibrating sieve plate, the second vibrating sieve plate and the third vibrating sieve plate to generate vibrations; it also includes a control unit 7 and a power supply 8 arranged on the support, and 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 classifying sand screening machine for civil engineering of the present invention:

The above technical solution adopts the structural principle of setting three layers of vibrating sieve plates at intervals from top to bottom in the inner cavity of the shell. The raw sand first enters the first vibrating sieve plate from the feeding hopper on the top of the shell. The plate is set at an inclination. In the case of vibration, the raw sand is screened or filtered by the first vibrating sieve plate for the first time, and the filtered sand falls into the first guide plate set at the same inclination and is lowered from the first guide plate. The first sand outlet at the end leads out of the shell, and the remaining raw sand falls from the lower end of the first vibrating sieve plate into the second vibrating sieve plate. Since the inclination direction of the first vibrating sieve plate is opposite to that of the first guide plate, Therefore, when the filtered sand and the remaining raw sand fall, there will be no mixing and interference effects; according to the same principle, the second guide plate will filter the sand filtered by the second vibrating sieve plate from the second guide plate. The second sand outlet at the lower end leads out of the casing, and the remaining raw sand falls into the third vibrating sieve plate, and the third guide plate passes the sand filtered by the third vibrating sieve plate from the lower end of the third guide plate. The third sand outlet is exported out of the shell, and the last remaining raw sand is exported out of the shell from the fourth sand outlet at the lower end of the third vibrating sieve plate; that is, after the raw sand enters the shell, it is screened or filtered three times. The filtered sand is exported from the first sand outlet, the second sand outlet and the third sand outlet respectively, and the remaining raw sand is exported from the fourth sand outlet, so as to effectively realize the full screening of the original sand or Classified filtering greatly improves the completeness or thoroughness of raw sand screening. Among them, the screening component is set in the inner cavity of the shell, and the screened sand particles are discharged from different sand outlets, and the driving device provides power for the three-layer vibrating sand screening, which has the advantages of compact structure layout, reasonable overall design and small space occupation. Advantages, while effectively reducing the installation space. In addition, 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 inclined, and the raw sand enters the first vibrating sieve plate Finally, it vibrates synchronously under the power transmission of the driving device, and then realizes automatic and rapid classification, screening or filtering. It only needs to start the control unit to start working, thus effectively reducing labor intensity and greatly improving production efficiency. It is simple to operate and easy to use. Convenient and practical features.

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 assembly 54, a second rotating shaft 55, a second eccentric wheel assembly 56, a third rotating shaft 57 and The third eccentric wheel combination 58, the motor is arranged on the bracket on the side of the housing, the first eccentric wheel combination, the second eccentric wheel combination and the third eccentric wheel combination are installed on the first rotating shaft, the second rotating shaft and the third eccentric wheel combination respectively. On the third rotating shaft, and respectively arranged on the lower surface of the first vibrating sieve plate, the second vibrating sieve plate and the second vibrating sieve plate, the two ends of the above-mentioned first rotating shaft, the second rotating shaft and the third rotating shaft can be respectively connected with the housing Rotational connection, such as a bearing matching structure using conventional mechanical technology 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 second rotating shaft 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 known structural characteristics of the eccentric wheel, the first vibrating sieve plate, the second vibrating sieve plate or the third vibrating sieve plate Realize the up and down reciprocating motion to meet the function needs of vibration.

As a preferred technical solution, the first eccentric wheel combination includes at least two eccentric wheels 541, which are arranged at intervals. Preferably, the two eccentric wheels are respectively arranged on both sides close to the housing. The lower surface of the first vibrating sieve plate contacts to ensure the structural strength and stability of the first vibrating sieve plate being supported and vibrated. Ensure the reliability of the first vibrating sieve plate; preferably, 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, which is beneficial 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 connected with the vertical projection of the first vibrating sieve plate, the second vibrating sieve plate and the third vibrating sieve plate The area is adapted, that is, to ensure that the sand particles screened and 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 them. plate and the third guide plate, so that the sand particles filtered and classified can be completely guided or guided to be discharged.

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

As a preferred technical solution, it also includes a shield combination 6 arranged on the outside of the housing, and the shield combination includes a first shield 61 that is arranged outside the first sand outlet, and a first shield that is arranged outside the second sand outlet. The second shield 62, the third shield 63 outside the third sand outlet and the fourth shield 64 outside the fourth sand outlet, the first shield and the fourth shield are in the same On one side, the second shield is on the same side as the third shield, and the combination of shields is beneficial to restrict the sand grains that are screened or filtered out, avoiding scattering everywhere for easy collection, and at the same time, it can also help ensure work The environment is clean and tidy; at the same time, according to actual needs, corresponding collection containers can be set under the first shield, the second shield, the third shield and the fourth shield, so as to reduce the labor force of the next work process and improve work efficiency.

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

According to a sorting sand screening machine for civil engineering according to the above-mentioned technical scheme, one or more vibrating sieve plates can also be arranged on the third vibrating sieve plate according to the actual sand classification and screening needs, and the guide plate can be increased accordingly. At the same time, the driving shaft is used to transmit and separate the power, so that more types of sand of different sizes can be separated; at the same time, in order to facilitate sand delivery, existing technical means can be used to set up a connection to the top of the feeding hopper. The conveyor belt of raw sand on the ground continuously provides the input of raw sand, thereby greatly improving work efficiency.

The above descriptions and examples are only exemplary and do not constitute any limitation to the scope of the present invention. Those skilled in the art should understand that the details and forms of the technical solution 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 (10)

1. A novel classification sand screening machine for civil engineering, comprising a support (1), a housing (2) arranged on the support and a sand screening assembly (3) arranged inside the housing, characterized in that: the housing The top of the body is provided with a feed hopper (4), and the sand screening assembly includes a first vibrating sieve plate (31), a first guide plate (32), a second vibrating sieve plate ( 33), the second guide plate (34), the third vibration sieve plate (35) and the third guide plate (36); One end of the first vibrating sieve plate is hinged to the inner wall of the housing and is inclined. The inclination direction of the vibrating sieve plate is opposite, the lower end of the first guide plate extends out of the shell, one end of the second vibrating sieve plate is hinged to the inner wall of the shell and is inclined in the same direction as the first guide plate, the first guide plate The second guide plate is inclined in the opposite direction to the second vibrating sieve plate, the lower end of the second guide plate extends out of the shell, and one end of the third vibrating sieve plate is hinged to the inner wall of the shell and is connected to the second guide plate The third guide plate is inclined in the opposite direction to the third vibrating sieve plate, and the lower ends of the third vibrating sieve plate and the third guide plate both extend out of the shell and are close to the first guide plate. The casing at the lower end of the guide plate, the second guide plate, the third guide plate and the third vibrating sieve plate is respectively provided with a first sand outlet (21), a second sand outlet (22), a second sand outlet The third sand outlet (23) and the fourth sand outlet (24); It also includes a driving device (5) for driving the first vibrating sieve plate, the second vibrating sieve plate and the third vibrating sieve plate to generate vibration. 2. A new classifying sand screening machine for civil engineering according to claim 1, characterized in that: said driving device comprises a motor (51), a transmission shaft system (52), a first rotating shaft (53), a first Eccentric wheel assembly (54), second rotating shaft (55), second eccentric wheel assembly (56), third rotating shaft (57) and the third eccentric wheel assembly (58), the motor is arranged on the bracket beside the housing Above, the first eccentric wheel combination, the second eccentric wheel combination and the third eccentric wheel combination are installed on the first rotating shaft, the second rotating shaft and the third rotating shaft respectively, and are respectively arranged on the first vibrating sieve plate, the second vibrating The lower surface of the 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 and the second eccentric wheel combination It rotates synchronously with the third eccentric combination. 3. A new classifying sand screening machine for civil engineering according to claim 2, characterized in that: the first eccentric wheel combination includes at least two eccentric wheels (541), which are arranged at intervals. 4. A new classifying sand screening machine for civil engineering according to claim 3, characterized in that: 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. 5. A new type of sand screening machine for civil engineering according to claim 1, characterized in that: the first guide plate, the second guide plate and the third guide plate are respectively connected with the first vibrating sieve plate , The vertical projected areas of the second vibrating sieve plate and the third vibrating sieve plate are compatible. 6. A new type of sand screening machine for civil engineering according to claim 1, characterized in that: the size of the sieve holes between the first vibrating sieve plate, the second vibrating sieve plate and the third vibrating sieve plate Are not the same. 7. A new classifying sand screening machine for civil engineering according to claim 6, characterized in that: the sieve hole diameters of the first vibrating sieve plate, the second vibrating sieve plate and the third vibrating sieve plate are sequentially increased . 8. A new classifying sand screening machine for civil engineering according to claim 1, characterized in that: it also includes a shield combination (6) arranged on the outside of the housing, and the shield combination includes a shield set on the first The first shield (61) outside the sand outlet, the second shield (62) outside the second sand outlet, the third shield (63) outside the third sand outlet and the cover located at the second sand outlet. For the fourth shield (64) outside the four sand outlets, the first shield is on the same side as the fourth shield, and the second shield is on the same side as the third shield. 9. A new type of sand screening machine for civil engineering according to claim 2, characterized in that: it also includes a control unit (7) and a power supply (8) arranged on the support, and the motor, power supply and control unit electrical connection. 10. A new classifying sand screening machine for civil engineering according to claim 1, characterized in that a moving pulley (9) is provided at the bottom of the support.