CN111744758A

CN111744758A - Multistage screening edulcoration device of building site gravel roll

Info

Publication number: CN111744758A
Application number: CN202010678526.0A
Authority: CN
Inventors: 胡永强
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2020-10-09

Abstract

The invention relates to the technical field of construction equipment, and discloses a gravel rolling multistage screening and impurity removing device for a construction site, which comprises a shell, a feeding hole and a gravel collecting tank, wherein the shell is provided with a feeding hole; the outer side of the middle upper part of the rotating shaft is fixedly provided with two groups of first screening nets and second screening nets which are of a conical structure from top to bottom, the upper side of the top of the rotating shaft is positioned under the feeding hole, the outer sides of the enclosing plates at the tops of the first screening nets and the second screening nets are communicated with a plurality of groups of transfer pipes outwards at equal intervals, the inner side of the connecting port is communicated with a crushing cavity, the upper part of the side wall of the tail end of each transfer pipe is fixedly connected with a connecting rod, the connecting rod is connected in a sliding opening formed in the inner wall of the shell in a sliding mode, the bottom of the connecting rod extending into the sliding opening is connected with a grinding wheel in a rolling mode through the connecting rod, the grinding wheel is arranged in the crushing cavity, and the bottom of the crushing cavity is.

Description

Multistage screening edulcoration device of building site gravel roll

Technical Field

The invention relates to the technical field of construction equipment, in particular to a gravel rolling multistage screening and impurity removing device for a construction site.

Background

In the building site, need a large amount of sand to be used for making the concrete, the sand sieving mechanism who uses at present only is a screen cloth, needs the workman on the continuous sand that spills to the screen cloth to filter the sand, detach the impurity in the grit, but such mode is not only slow, wastes time and energy moreover, and work efficiency is extremely low.

Chinese patent (publication No. CN 109332184A, publication No. 2019.02.15) discloses a sand screening device for a construction site, which can automatically screen sand, saves labor, is provided with two screening devices, increases working efficiency, and is capable of automatically pushing out the screened sand and sand grains, thereby facilitating long-time continuous operation. But the device only screens the grit, can't sieve to the impurity that exists in the grit, often has some to be difficult to decompose the condition that pulverizes impurity and exist simultaneously with the great grit of granule in the screening process to be unfavorable for the separation of impurity and grit, just need use the instrument to carry out extra processing to the grit this moment, be unfavorable for the whole comprehensive quick screening of the impurity in the grit to handle, thereby influence holistic grit screening and handle.

Disclosure of Invention

The invention aims to provide a gravel rolling multistage screening and impurity removing device for a construction site, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a gravel rolling multistage screening and impurity removing device for a construction site comprises a shell, a feeding hole and a gravel collecting tank; the top intermediate position of casing upwards communicates has a set of feed inlet that is loudspeaker column structure, and the interior bottom fixed mounting of casing has a set of upper portion open-ended gravel collecting vat, and the interior bottom fixed mounting of casing has a set of rotating electrical machines, and the upside output of rotating electrical machines rotates and is connected with vertical axis of rotation, the well upper portion outside fixed mounting of axis of rotation has two sets of top-down's the first screening net and the second screening net that are the toper structure, and the mesh diameter of first screening net is greater than the second screening net and is used for treating the gravel of screening and carry out the second grade screening. The top upside of axis of rotation is located the feed inlet under, enters into the grit through the feed inlet and at first falls into to screen on the first sieve screen.

The side upside of the first screening net and the side upside of the second screening net are fixedly provided with a circle of coaming plate, the coaming outer sides of the tops of the first screening net and the second screening net are communicated outwards at equal intervals to form a plurality of groups of transfer pipes, and the transfer pipes are used for outputting the gravel which is not successfully filtered on the upper sides of the first screening net and the second screening net. The tail end of the transfer pipe is communicated with a connecting port arranged in the inner wall of the shell in a sliding mode, the inner side of the connecting port is communicated with a grinding cavity, the upper portion of the side wall of the tail end of the transfer pipe is fixedly connected with a connecting rod, the connecting rod is connected in a sliding port arranged on the inner wall of the shell in a sliding mode, the inside of the sliding port is communicated with the grinding cavity, the bottom of the connecting rod extending into the inside of the sliding port is connected with a grinding wheel in a rolling mode through a connecting rod, the grinding wheel is arranged in the grinding cavity, the bottom of the grinding cavity is fixedly provided with a circle of filter screens identical to the first screening net and the second screening net, the bottom of the grinding wheel is in contact with the upper surface of the filter screens in the grinding cavity, the grits which are not screened on the first screening net and the second screening net are input into the grinding cavity through the transfer pipe, then the grinding wheel rotates in, and thus moves downward. The below of the terminal crushing intracavity portion filter screen of second screen cloth is provided with the output tube that is used for outwards carrying the gravel after will crushing, and the end of output tube communicates on the gravel collecting vat.

As a further scheme of the invention: the junction of axis of rotation bottom and rotating electrical machines is provided with the protection casing that is arranged in preventing that the inside grit of grit collecting vat from entering into rotating electrical machines.

As a further scheme of the invention: the top of the rotating shaft is provided with a conical structure for preventing gravel from being piled up on the top of the rotating shaft.

As a further scheme of the invention: the top of axis of rotation is rotated through the drive belt right and is connected with a set of vertical dwang, the middle part of dwang carries out suit fixed stay through a set of L type bracing piece of fixing the top in the casing right, the top fixed mounting of dwang has the helical gear of two sets of mutually perpendicular meshing, the right side of vertical helical gear is passed through the bearing and is rotated and connect on the casing, the left side has the interior material roller of dialling of arranging the bottom in the feed inlet that the level was placed through horizontal round platform shape spliced pole fixed mounting, it is rotatory to drive the drive belt through the rotation of axis of rotation, and then it is rotatory to utilize the meshing of helical gear, it is rotatory to drive the left material roller of dialling of spliced pole, thereby dial the inside grit.

As a further scheme of the invention: the avris bottom fixed mounting of first screening net has the tip to the directional right angled triangle structure in second screening net middle part deflector, and the setting of deflector is used for guiding the gravel of whereabouts on the first screening net can maximize to slide along second screening net downstream and filter.

As a further scheme of the invention: intercommunication each other between the grinding chamber of upper and lower both sides, the terminal gravel after grinding the grinding of the grinding intracavity portion of first screen cloth directly falls into the terminal inside that grinds the chamber of second screen cloth through the filter screen downwards.

As a still further scheme of the invention: the transfer pipe is set to be a steel pipe and is used for conveying gravel on the first screening net and the second screening net to enter the grinding cavity, meanwhile, the stable connection of the transfer pipe can be guaranteed, and the grinding wheel is driven to rotate in the grinding cavity through the rotation of the first screening net and the second screening net.

Compared with the prior art, the invention has the beneficial effects that: the first screening net and the second screening net are driven to carry out rotary screening on the input gravel by utilizing the rotation of the rotating shaft, so that the screening speed can be increased;

the top of the rotating shaft is connected with a driving bevel gear through the transmission of a transmission belt to drive a material stirring roller positioned at the inner bottom of the feeding hole to stir the input gravel downwards, so that the blockage of the gravel at the inner bottom of the feeding hole is prevented;

the gravel screening device comprises a first screening net, a second screening net, a transfer pipe and a grinding chamber, wherein the first screening net and the second screening net are arranged on a side plate on the outer side of the first screening net, the transfer pipe is communicated with the outer side of the first screening net and the second screening net, the unscreened gravel can be output outwards, the gravel in the transfer pipe is input into the grinding chamber, and the gravel can be ground, so that the input gravel can be subjected to comprehensive grinding and screening treatment at one time, and the gravel and impurities can be completely.

Drawings

FIG. 1 is a schematic diagram of the internal structure of a construction site gravel rolling multistage screening and impurity removing device in a front view.

FIG. 2 is a schematic view of a connection structure of a gravel collecting tank and a coaming in a gravel rolling multistage screening and impurity removing device for a construction site.

FIG. 3 is a schematic view of a partially developed structure of the inner wall of a housing of a gravel rolling multistage screening and impurity removing device for a construction site.

Wherein: the device comprises a shell 10, a feeding hole 11, a gravel collecting groove 12, a rotating motor 13, a rotating shaft 14, a first screening net 15, a second screening net 16, a coaming 17, a transfer pipe 18, a guide plate 19, a connecting rod 20, a grinding wheel 21, a grinding cavity 22, an output pipe 24, a stirring roller 25, a transmission belt 26, a rotating rod 27, a helical gear 28, a supporting rod 29, a sliding opening 30 and a connecting opening 31.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Example one

Referring to fig. 1-3, a gravel rolling multistage screening and impurity removing device for a construction site comprises a shell 10, a feed inlet 11 and a gravel collecting tank 12; casing 10's top intermediate position upwards communicates has a set of feed inlet 11 that is the loudspeaker column structure, and casing 10's interior bottom fixed mounting has a set of upper portion open-ended gravel collecting vat 12, and casing 10's interior bottom fixed mounting has a set of rotating electrical machines 13, and rotating electrical machines 13's upside output rotates and is connected with vertical axis of

rotation

14, and 14 bottoms of axis of rotation are provided with the protection casing that is arranged in preventing the inside gravel of gravel collecting vat 12 from entering into rotating electrical machines 13 with rotating electrical machines 13's junction. Two sets of first screening nets 15 and second screening nets 16 which are of a conical structure from top to bottom are fixedly installed on the outer side of the middle upper portion of the rotating shaft 14, and the mesh diameter of the first screening net 15 is larger than that of the second screening net 16 and used for secondary screening of gravel to be screened. The upper side of the top of the rotating shaft 14 is located right below the feed opening 11, and gravel entering through the feed opening 11 first falls onto the first screening mesh 15 for screening. The top of the rotating shaft 14 is provided with a tapered structure for preventing the accumulation of grit on the top of the rotating shaft 14. The top of axis of rotation 14 rotates through drive belt 26 to the right and is connected with a set of vertical dwang 27, the middle part of dwang 27 carries out suit fixed stay through a set of L type bracing piece 29 of fixing the top in casing 10 right, the top fixed mounting of dwang 27 has two sets of mutually perpendicular meshing's helical gear 28, the right side of vertical helical gear 28 is passed through the bearing and is rotated and connect on casing 10, the left side has the material roller 25 of dialling of arranging the bottom in feed inlet 11 that the level was placed through horizontal round platform shape spliced pole fixed mounting, it is rotatory to drive belt 26 through the rotation of axis of rotation 14, and then utilize helical gear 28's meshing rotation, it is rotatory to drive the left material roller 25 of dialling of spliced pole, thereby dial material roller 25 downwards to the grit of 11 inside underrun of.

The limit portion upside fixed mounting of first screening net 15 and second screening net 16 has a round bounding wall 17, the avris bottom fixed mounting of first screening net 15 has tip to the directional right angled triangle structure's in second screening net 16 middle part deflector 19, and the setting of deflector 19 is used for guiding the gravel of falling from first screening net 15 can maximize slide along second screening net 16 downwards and filter. A plurality of groups of transfer pipes 18 are communicated outwards at equal intervals outside the coamings 17 at the tops of the first screening net 15 and the second screening net 16, and the transfer pipes 18 are used for outputting the gravel which is not successfully filtered at the upper sides of the first screening net 15 and the second screening net 16. The end of the transfer pipe 18 is connected to the connection port 31 opened in the inner wall of the shell 10 in a sliding way, the inner side of the connection port 31 is connected with the grinding chamber 22 in a sliding way, the upper part of the side wall of the end of the transfer pipe 18 is fixedly connected with the connection rod 20, the connection rod 20 is connected in the sliding way 30 opened in the inner wall of the shell 10 in a sliding way, the inside of the sliding way 30 is connected with the grinding chamber 22 in a mutual way, the bottom of the connection rod 20 extending into the inside of the sliding way 30 is connected with the grinding wheel 21 in a rolling way through the connection rod, the grinding wheel 21 is arranged in the grinding chamber 22 and the bottom of the grinding chamber 22 is fixedly provided with a circle of filter screen which is the same as the first screening net 15 and the second screening net 16, the bottom of the grinding wheel 21 is contacted with the upper surface of the filter screen in the grinding chamber 22 in a mutual way, the unscreened gravel on the first screening net 15 and the second screening net, so that the gravel entering the inside of the grinding chamber 22 is ground and moved downwards. The grinding chambers 22 at the upper and lower sides are communicated with each other, and the ground gravel in the grinding chamber 22 at the end of the first screening net 15 directly falls down into the grinding chamber 22 at the end of the second screening net 16 through the screen. An output pipe 24 for conveying the crushed gravel outwards is arranged below the filter screen in the grinding cavity 22 at the tail end of the second screening net 16, and the tail end of the output pipe 24 is communicated with the gravel collecting tank 12.

Example two

On the basis of the first embodiment said transfer pipe 18 is arranged as a steel pipe for transporting the grits on the first screen mesh 15 and the second screen mesh 16 into the interior of the grinding chamber 22 while ensuring a stable connection through the transfer pipe 18, the rotation of the first screen mesh 15 and the second screen mesh 16 rotating the grinding wheel 21 inside the grinding chamber 22.

The working principle of the invention is as follows: when in use, firstly, gravel to be screened is input into the shell 10 through the feed port 11, the rotating shaft 14 is in a rotating state under the driving of the rotating motor 13, the rotating shaft 14 drives the first screening net 15 and the second screening net 16 to screen the input gravel, then the bevel gear 28 is driven by the transmission action of the transmission belt 26 to drive the stirring roller 25 to stir the gravel at the bottom in the feed port 11 downwards, so that the downward movement of the gravel at the bottom of the feed port 11 is accelerated, the first screening net 15 and the second screening net 16 screen the input gravel, the unscreened gravel is input into the grinding cavity 22 through the communication action of the transfer pipe 18, then the rotation of the first screening net 15 and the second screening net 16 drives the grinding wheel 21 at the bottom of the connecting rod 20 to grind the gravel in the grinding cavity 22, and then the screen the gravel after the grinding cavity 22, thereby carrying out rapid and complete filtration screening on impurities in the input gravel.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. A multistage screening and impurity removing device for gravel rolling on a construction site comprises a shell (10), a feed inlet (11) and a gravel collecting tank (12); the top middle position of casing (10) upwards communicates and has a set of feed inlet (11) that is loudspeaker column structure, and the interior bottom fixed mounting of casing (10) has a set of upper portion open-ended gravel collecting vat (12), its characterized in that, the interior bottom fixed mounting of casing (10) has a set of rotating electrical machines (13), and the upside output of rotating electrical machines (13) rotates and is connected with vertical axis of rotation (14), the well upper portion outside fixed mounting of axis of rotation (14) has two sets of top-down be first screening net (15) and second screening net (16) of toper structure, and the mesh diameter of first screening net (15) is greater than second screening net (16), the top upside of axis of rotation (14) is located feed inlet (11) under, and the limit portion upside fixed mounting of first screening net (15) and second screening net (16) has round coaming (17), a plurality of groups of transfer pipes (18) are communicated outwards at equal intervals outside the coaming (17) at the top of the first screening net (15) and the second screening net (16), the tail ends of the transfer pipes (18) are communicated with a connecting port (31) arranged in the inner wall of the shell (10) in a sliding way, the inner side of the connecting port (31) is communicated with a grinding cavity (22), the upper part of the side wall at the tail end of the transfer pipe (18) is fixedly connected with a connecting rod (20), the connecting rod (20) is connected in a sliding opening (30) arranged on the inner wall of the shell (10) in a sliding way, the inside of the sliding opening (30) is communicated with the grinding cavity (22), the bottom of the connecting rod (20) extending into the inside of the sliding opening (30) is connected with a grinding wheel (21) in a rolling way through the connecting rod, the grinding wheel (21) is arranged in the grinding cavity (22), and the bottom of the grinding cavity (22) is fixedly provided with a circle of filter screen which is the same, the bottom of the grinding wheel (21) is contacted with the upper surface of the filter screen in the grinding cavity (22), an output pipe (24) for conveying the ground gravel outwards is arranged below the filter screen in the grinding cavity (22) at the tail end of the second screening net (16), and the tail end of the output pipe (24) is communicated with the gravel collecting tank (12).

2. The construction site gravel rolling multistage screening and impurity removing device is characterized in that a protective cover for preventing gravel in the gravel collecting tank (12) from entering the rotating motor (13) is arranged at the joint of the bottom of the rotating shaft (14) and the rotating motor (13).

3. The construction site gravel rolling multistage screening trash device of claim 2, wherein the top of the rotating shaft (14) is provided with a tapered structure.

4. The multistage screening edulcoration device of a building site gravel roll of claim 3, characterized in that, the top of axis of rotation (14) is connected with a set of vertical dwang (27) through drive belt (26) rotation to the right, the middle part of dwang (27) is gone on suit fixed support through a set of L type bracing piece (29) of fixing at the top in casing (10) to the right, the top fixed mounting of dwang (27) has two sets of mutually perpendicular meshing helical gears (28), the right side of vertical helical gear (28) is passed through the bearing and is rotated and connect on casing (10), the left side is through horizontal round platform shape spliced pole fixed mounting have the material stirring roller (25) of placing in feed inlet (11) bottom of horizontal placement.

5. The construction site gravel rolling multistage screening and impurity removing device is characterized in that a guide plate (19) with a right-angled triangular structure, the end of which points to the middle of the second screening net (16), is fixedly installed at the bottom of the side of the first screening net (15).

6. The construction site gravel rolling multistage screening and impurity removing device according to claim 5, wherein the grinding chambers (22) at the upper and lower sides are communicated with each other, and the ground gravel inside the grinding chamber (22) at the end of the first screening net (15) directly falls down through the screen into the inside of the grinding chamber (22) at the end of the second screening net (16).

7. The construction site gravel rolling multistage screening and decontaminating apparatus according to any of claims 1 to 6, wherein the transfer pipe (18) is provided as a steel pipe.