Gravel sorting device

Abstract

The utility model belongs to the technical field of gravel sorting, and particularly relates to a gravel sorting device which comprises a rack, a roller assembly, a driving assembly and a net cleaning assembly are arranged on the rack, the roller assembly comprises a framework and a filter net arranged outside the framework in a surrounding mode, and the roller assembly is obliquely arranged relative to the horizontal plane. The high side of the roller assembly is a feeding side, and the low side of the roller assembly is a stone discharging side. The driving assembly comprises a driving motor and a main shaft, the main shaft is connected with the output end of the driving motor and rotationally arranged on the rack, the main shaft penetrates through the framework and is fixedly connected with the framework, and the screen cleaning assembly is used for cleaning the filter screen from the outside. The filter screen is cleaned from the outside through the screen cleaning component, so that the blockage of the filter screen can be reduced, the frequency of replacing the filter screen after shutdown is reduced, and the utilization rate and the efficiency of equipment are ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to sandstone sorting technical field especially relates to a sandstone sorting device. BACKGROUND

[0002] Sandstone is a kind of building material commonly used in construction. Generally, construction workers need to screen sand piles through sand screening devices to select different coarse and fine sand and gravel, and use suitable sand and gravel for construction.

[0003] With the development of building materials in China, the scale of building aggregate production enterprises is becoming larger and larger, and the modernization degree of sandstone treatment directly affects the production capacity, product quality, production cost, labor productivity and energy consumption of enterprises, thus directly affecting the benefits and development speed of enterprises. At present, sandstone is separated after mining, and there are various types of sandstone sorting devices.

[0004] The linear vibrating screen utilizes the principle of vibration motor excitation to make the material jump linearly on the screen surface. The original sand enters the feed inlet of the screening machine from the upper end of the vibrating screen, and produces several specifications of sieve materials and sieve materials through the multi-layer screen, which are discharged from the respective outlets, realizing waste material screening. The linear vibrating screen commonly used in the market has the problems of high cost, large vibration force, large running noise and high requirement for infrastructure. During the working process of the vibrating screen, when faults such as beam fracture, side plate cracking and screen damage occur, the most direct manifestation is the change of amplitude, frequency and noise. The vibrating screen generally works in a harsh environment with a large surrounding noise.

[0005] The shafted circular screen screens through the rotation of the drum screen. The drum is installed with an inclination angle. The middle part of the drum structure is connected with the framework through a main shaft. The two ends of the main shaft are installed on the bearing seat and are driven to rotate by a motor. The original sand enters from the middle part of the cylinder. Under the action of rotation and screen, the primary finished sand is thrown out and falls, and the waste material is discharged from the tail part. The patent example of the shafted circular screen can be seen in the Chinese patent document CN212189955U, a drum sand screening machine, etc.

[0006] At present, it is more troublesome to replace the screen of the drum type sand screening machine. Therefore, if the clogging of the screen can be reduced or a device for clearing the clogging of the screen can be provided, the use convenience and efficiency of the drum type sand screening machine can be improved. UTILITY MODEL CONTENTS

[0007] The utility model aims at the above-mentioned technical problems, and provides a sandstone sorting device, which achieves the effect of ensuring equipment utilization rate and efficiency.

[0008] Therefore, the utility model provides a sandstone sorting device, which comprises a rack, and the rack is provided with:

[0009] The drum assembly comprises a framework and a filter screen arranged outside the framework, and is arranged obliquely relative to a horizontal plane, with a high side as a feeding side and a low side as a stone discharging side.

[0010] The driving assembly comprises a driving motor and a main shaft, the main shaft is connected with the output end of the driving motor and is arranged rotatably on the rack, and the main shaft is fixedly connected with the framework,

[0011] The screen cleaning assembly is used for cleaning the filter screen from the outside.

[0012] In the technical solution, the filter screen is cleaned from the outside by the screen cleaning assembly, so that the blockage of the filter screen is reduced, the frequency of replacing the filter screen is reduced, and the equipment utilization rate and efficiency are ensured.

[0013] Further, the screen cleaning assembly comprises:

[0014] The screen cleaning screw rod is arranged rotatably on the rack outside the drum assembly in parallel with the drum assembly;

[0015] The screen cleaning slider is arranged slidably on the rack outside the drum assembly along the length direction of the drum assembly, and is screw-connected with the screen cleaning screw rod;

[0016] The screen cleaning brush is connected with the screen cleaning slider on one side and is in contact with the filter screen on the other side;

[0017] The screen cleaning motor is fixedly arranged on the rack, and the output end of the screen cleaning motor is connected with the screen cleaning screw rod.

[0018] In the technical solution, when the screen needs to be cleaned, the screen cleaning motor is started to rotate the screen cleaning screw rod, so as to drive the screen cleaning slider and the screen cleaning brush to move along the length direction of the drum assembly, and the screen cleaning brush cleans the filter screen.

[0019] Further, the drum assembly is provided with the screen cleaning brush on both sides, and synchronous belts and synchronous wheels are used for synchronous movement.

[0020] Further, the feeding hopper is arranged on the feeding side of the drum assembly, and the discharging port of the feeding hopper extends into the drum assembly.

[0021] In the technical solution, the sand and stones are directly discharged from the discharging port of the feeding hopper into the drum assembly, so that dust raising is reduced.

[0022] Further, the sand discharging hopper and the stone discharging hopper are fixedly arranged on the rack below the drum assembly.

[0023] Further, two limiting blocks are arranged on the rack at both ends of the screen cleaning screw rod, a reversing inductor is arranged on the limiting block, and a signal of the reversing inductor is used for controlling the forward rotation and the reverse rotation of the motor.

[0024] In the technical solution, the reciprocating movement of the screen brush is realized by controlling the forward rotation and reverse rotation of the motor.

[0025] Further, the rack includes four leg columns, two of which on the feeding side of the drum assembly are longer than the other two on the discharging side of the drum assembly.

[0026] Further, the rack is provided with an inclination angle adjusting structure for adjusting the inclination angle of the drum assembly, which adjusts the inclination angle of the drum assembly by adjusting the length of the leg columns.

[0027] In the technical solution, when the inclination angle of the drum assembly is too large, the screening time is too short, which leads to insufficient screening, and part of the sand is discharged from the stone discharging hopper together with the stones, causing waste, and when the inclination angle of the drum assembly is too small, the screening time is increased. Therefore, according to the proportion of sand and stones in the sand and stone mixture, the inclination angle is adjusted, and when the proportion of sand is large, the inclination angle of the drum assembly is adjusted to be small, and when the proportion of stones is large, the inclination angle of the drum assembly is adjusted to be large, which ensures the screening efficiency and the screening quality.

[0028] Further, the inclination angle adjusting structure is arranged on the leg column on the discharging side of the drum assembly, the leg column includes an outer rod and an inner rod, the inner rod is slidingly arranged in the outer rod, the lower end of the outer rod is in contact with the ground, and the inclination angle adjusting structure includes:

[0029] an adjusting motor, which is fixedly arranged on the outer rod, the output shaft of the adjusting motor is perpendicular to the axis of the outer rod and extends into the outer rod, and an adjusting gear is fixedly connected to the output shaft;

[0030] an adjusting rack, which is fixedly arranged in the inner rod and extends out of the inner rod from below, and the adjusting rack is in mesh with the adjusting gear.

[0031] In the technical solution, when the inclination angle needs to be adjusted, the adjusting motor is started to rotate the adjusting gear, so that the adjusting rack moves up and down in the outer rod with the inner rod, thereby changing the overall length of the leg column on the discharging side of the drum assembly, and further changing the inclination angle of the drum assembly.

[0032] Further, the sand and stone sorting method of the sand and stone sorting device includes the following steps:

[0033] S1: adjusting the inclination angle of the drum assembly: starting the adjusting motor to rotate the adjusting gear, so that the adjusting rack moves up and down in the outer rod with the inner rod, thereby changing the overall length of the leg column on the discharging side of the drum assembly, and further changing the inclination angle of the drum assembly;

[0034] S2: feeding, feeding the sand and stone mixture into the drum assembly from the feeding hopper on the feeding side of the drum assembly;

[0035] S3: screening, starting the driving motor to make the main shaft rotate with the roller assembly, carrying out screening, the sand falling into the sand discharge hopper from the filter screen, the stones being discharged from the stone discharge hopper at the discharge side of the roller assembly, when the preset time is reached, starting the screen cleaning motor to make the screen cleaning wire rod rotate, driving the screen cleaning slider and the screen cleaning brush to move along the length direction of the roller assembly, and making the screen cleaning brush clean the filter screen.

[0036] The utility model discloses the beneficial effects are:

[0037] 1. the filter screen is cleaned from the outside through the screen cleaning assembly can reduce the blockage of filter screen, reduce the frequency of replacing filter screen during shutdown, guarantee equipment utilization rate and efficiency.

[0038] 2. the sand and stone are directly into the roller assembly when discharging from the discharge port of the feeding hopper, which can reduce dust.

[0039] 3. when the inclination angle of the roller assembly is too large, there will be the problem of insufficient screening due to too short screening time, part of the sand is discharged from the stone discharge hopper together with the stones, causing waste, and when the inclination angle of the roller assembly is too small, the screening time will be increased, therefore, according to the proportion of sand and stone in the sand and stone mixture, the inclination angle is adjusted, when the proportion of sand is large, the inclination angle of the roller assembly is adjusted to be small, and when the proportion of stone is large, the inclination angle of the roller assembly is adjusted to be large, which can guarantee the screening efficiency and the screening quality. BRIEF DESCRIPTION OF DRAWINGS

[0040] Figure 1 is the perspective view of the utility model;

[0041] Figure 2 is the perspective view of another angle of the utility model;

[0042] Figure 3 is the sectional view of the utility model;

[0043] Figure 4 is the schematic view of the inclination angle adjusting structure.

[0044] The marks in the figure represent:

[0045] 1, rack; 2, roller assembly; 3, framework; 4, filter screen; 5, feeding side; 6, discharge side; 7, driving motor; 8, main shaft; 9, screen cleaning wire rod; 10, screen cleaning slider; 11, screen cleaning brush; 12, screen cleaning motor; 13, synchronous belt; 14, synchronous wheel; 15, feeding hopper; 16, sand discharge hopper; 17, stone discharge hopper; 18, limit block; 19, leg column; 20, outer rod; 21, inner rod; 22, adjusting motor; 23, adjusting gear; 24, adjusting rack. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art belong to the scope of protection of the present application.

[0047] In the description of the present application, it should be noted that the terms used herein are only intended to describe specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn in proportion to the actual proportions. The techniques, methods and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered as part of the authorized description. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary, and not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so further discussion is not needed in subsequent drawings once an item is defined in one drawing.

[0048] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application are used to distinguish similar objects, and are not intended to describe a specific order or sequence. It should be understood that the data used in this way can be exchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than that illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally a class, not limited to the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / ", generally indicates that the front and rear associated objects are in an "or" relationship.

[0049] It should be noted that in the description of the present application, the orientation terms such as "front, rear, upper, lower, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicate the orientation or positional relationship shown in the drawings, and are only used for the convenience of describing the present application and simplifying the description. Without the opposite description, these orientation terms do not indicate and imply that the indicated device or element must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the scope of protection of the present application; the orientation terms "inner, outer" refer to the inner and outer of the contour of each component itself.

[0050] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0051] Example 1

[0052] like Figures 1-3 As shown, a sand and gravel sorting device includes a frame 1, on which are mounted:

[0053] The roller assembly 2 includes a frame 3 and a filter screen 4 surrounding the frame 3. The roller assembly 2 is inclined relative to the horizontal plane. The high side of the roller assembly 2 is the feeding side 5, and the low side is the stone discharge side 6.

[0054] The drive assembly includes a drive motor 7 and a spindle 8. The spindle 8 is connected to the output end of the drive motor 7 and is rotatably mounted on the frame 1. The spindle 8 passes through the frame 3 and is fixedly connected to the frame 3.

[0055] A screen cleaning assembly is used to clean the filter 4 from the outside.

[0056] In this technical solution, cleaning the filter screen 4 from the outside using the cleaning component can reduce the clogging of the filter screen 4, reduce the number of times the machine is shut down to replace the filter screen 4, and ensure the utilization rate and efficiency of the equipment.

[0057] The network cleaning component includes:

[0058] The cleaning wire rod 9 is rotatably mounted on the frame 1 outside the roller assembly 2, parallel to the roller assembly 2.

[0059] The cleaning slider 10 is slidably disposed on the frame 1 outside the roller assembly 2 along the length direction of the roller assembly 2, and the cleaning slider 10 is spirally connected to the cleaning screw 9;

[0060] Cleaning brush 11, one side of which is connected to the cleaning slider 10, and the other side is in contact with the filter screen 4;

[0061] The cleaning motor 12 is fixedly mounted on the frame 1, and the output end of the cleaning motor 12 is connected to the cleaning screw 9.

[0062] In this technical solution, when it is necessary to clean the screen, the screen cleaning motor 12 is started to make the screen cleaning screw 9 rotate, which drives the screen cleaning slider 10 and the screen cleaning brush 11 to move along the length of the roller assembly 2, so that the screen cleaning brush 11 cleans the filter screen 4.

[0063] The roller assembly 2 is equipped with cleaning brushes 11 on both sides and moves synchronously using a synchronous belt 13 and a synchronous pulley 14.

[0064] The feed side 5 of the roller assembly 2 is provided with a feed hopper 15, and the discharge port of the feed hopper 15 extends into the interior of the roller assembly 2.

[0065] In this technical solution, when the sand and gravel are discharged from the outlet of the feed hopper 15, they directly enter the drum assembly 2, which can reduce dust.

[0066] A sand discharge hopper 16 and a stone discharge hopper 17 are fixedly installed on the frame 1 below the roller assembly 2.

[0067] Two limit blocks 18 are provided on the frame 1 at both ends of the cleaning wire rod 9. The limit blocks 18 are equipped with commutation sensors. The signals from the commutation sensors are used to control the forward and reverse rotation of the motor.

[0068] In this technical solution, the reciprocating movement of the cleaning brush 11 is achieved by controlling the forward and reverse rotation of the motor.

[0069] Example 2

[0070] like Figures 1-4 As shown, the frame 1 includes four legs 19, and the two legs 19 located on the feed side 5 of the roller assembly 2 are longer than the two legs 19 on the discharge side 6 of the roller assembly 2.

[0071] The frame 1 is provided with a tilt angle adjustment structure for adjusting the tilt angle of the roller assembly 2. The tilt angle adjustment structure adjusts the tilt angle of the roller assembly 2 by adjusting the length of the leg column 19.

[0072] In the technical solution, when the inclination angle of the drum assembly 2 is too large, the screening time is too short, which leads to insufficient screening, and part of the sand is discharged from the stone discharge hopper 17 together with the stones, causing waste, and when the inclination angle of the drum assembly 2 is too small, the screening time is increased. Therefore, according to the proportion of sand and stones in the sand and stone mixture, the inclination angle is adjusted, and when the proportion of sand is large, the inclination angle of the drum assembly 2 is adjusted to be small, and when the proportion of stones is large, the inclination angle of the drum assembly 2 is adjusted to be large, so that the screening efficiency and the screening quality are ensured.

[0073] The inclination angle adjusting structure is arranged on the leg column 19 of the discharge side 6 of the drum assembly 2, the leg column 19 includes an outer rod 20 and an inner rod 21, the inner rod 21 is slidingly arranged in the outer rod 20, the lower end of the outer rod 20 is in contact with the ground, and the inclination angle adjusting structure includes:

[0074] An adjusting motor 22 is fixedly arranged on the outer rod 20, the output shaft of the adjusting motor 22 is perpendicular to the axis of the outer rod 20 and extends into the outer rod 20, and an adjusting gear 23 is fixedly connected to the output shaft;

[0075] An adjusting rack 24 is fixedly arranged in the inner rod 21 and extends out of the inner rod 21 from below, and the adjusting rack 24 is in meshing connection with the adjusting gear 23.

[0076] In the technical solution, when the inclination angle needs to be adjusted, the adjusting motor 22 is started to rotate the adjusting gear 23, so that the adjusting rack 24 moves up and down in the outer rod 20 with the inner rod 21, so that the overall length of the leg column 19 of the discharge side 6 of the drum assembly 2 changes, and the inclination angle of the drum assembly 2 is changed.

[0077] The sand and stone sorting method of the sand and stone sorting device includes the following steps:

[0078] S1: Adjusting the inclination angle of the drum assembly 2: starting the adjusting motor 22 to rotate the adjusting gear 23, so that the adjusting rack 24 moves up and down in the outer rod 20 with the inner rod 21, so that the overall length of the leg column 19 of the discharge side 6 of the drum assembly 2 changes, and the inclination angle of the drum assembly 2 is changed;

[0079] S2: Feeding, feeding the sand and stone mixture from the feeding hopper 15 of the feeding side 5 of the drum assembly 2 into the drum assembly 2;

[0080] S3: screening, starting the driving motor 7 to make the main shaft 8 rotate with the drum assembly 2, carrying out screening, the sand falling into the sand discharge hopper 16 from the filter screen 4, the stones being discharged from the stone discharge hopper 17 of the drum assembly 2 discharge side 6, when the preset time is reached, starting the screen cleaning motor 12 to make the screen cleaning wire rod 9 rotate, driving the screen cleaning slider 10 and the screen cleaning brush 11 to move along the length direction of the drum assembly 2, making the screen cleaning brush 11 clean the filter screen 4.

[0081] The embodiments of the present application are described above in combination with the drawings, the embodiments and the features in the embodiments in the present application can be combined with each other without conflict, the present application is not limited to the above specific embodiments, the above specific embodiments are only illustrative but not restrictive, the ordinary skilled in the art can make many forms without departing from the purpose of the present application and the scope protected by the claims under the inspiration of the present application, which all belong to the protection of the present application.

Claims

1. A sand and stone sorting device, characterized in that , including a rack (1), the rack (1) is provided with: A drum assembly (2), the drum assembly (2) comprises a skeleton (3) and a filter screen (4) arranged outside the skeleton (3), the drum assembly (2) is arranged inclinedly relative to the horizontal plane, the high side of the drum assembly (2) is the feeding side (5), and the low side is the stone discharging side (6); A driving assembly, the driving assembly comprises a driving motor (7) and a main shaft (8), the main shaft (8) is connected with the output end of the driving motor (7) and is rotationally arranged on the rack (1), and the main shaft (8) is fixedly connected with the skeleton (3) and passes through the skeleton (3); A screen cleaning assembly, the screen cleaning assembly is used for cleaning the filter screen (4) from the outside.

2. A sand and aggregate sorting device according to claim 1, characterised in that The screen cleaning assembly comprises: A screen cleaning lead screw (9), the screen cleaning lead screw (9) is rotationally arranged on the rack (1) outside the drum assembly (2) in parallel with the drum assembly (2); A screen cleaning slider (10), the screen cleaning slider (10) is slidingly arranged on the rack (1) outside the drum assembly (2) along the length direction of the drum assembly (2), and the screen cleaning slider (10) is screw-connected with the screen cleaning lead screw (9); A screen cleaning brush (11), one side of the screen cleaning brush (11) is connected with the screen cleaning slider (10), and the other side is in contact with the filter screen (4); A screen cleaning motor (12), the screen cleaning motor (12) is fixedly arranged on the rack (1), and the output end of the screen cleaning motor (12) is connected with the screen cleaning lead screw (9).

3. A sand and aggregate sorting device according to claim 2, characterised in that, The drum assembly (2) is provided with the screen cleaning brush (11) on both sides, and synchronous movement is achieved through the synchronous belt (13) and the synchronous wheel (14).

4. A sand and aggregate sorting device according to claim 1, wherein, The feeding side (5) of the drum assembly (2) is provided with a feeding hopper (15), and the discharge opening of the feeding hopper (15) extends into the drum assembly (2).

5. A sand and aggregate sorting device according to claim 1, wherein, The rack (1) below the drum assembly (2) is fixedly provided with a sand discharging hopper (16) and a stone discharging hopper (17).

6. A sand and aggregate sorting device according to claim 2, wherein, Two limiting blocks (18) are arranged on the rack (1) at both ends of the screen cleaning lead screw (9), a reversing inductor is arranged on the limiting block (18), and the signal of the reversing inductor is used for controlling the forward rotation and the reverse rotation of the motor.

7. A sand and aggregate sorting device according to claim 1, wherein, The rack (1) comprises four leg columns (19), and the two leg columns (19) located at the feeding side (5) of the drum assembly (2) are longer than the two leg columns (19) located at the discharging side (6) of the drum assembly (2).

8. A sand and aggregate sorting device according to claim 7, characterised in that The rack (1) is provided with an inclination angle adjusting structure for adjusting the inclination angle of the drum assembly (2), and the inclination angle adjusting structure adjusts the inclination angle of the drum assembly (2) by adjusting the length of the leg column (19).

9. A sand and aggregate sorting device according to claim 8, characterised in that, The inclination angle adjusting structure is arranged on the leg column (19) at the discharging side (6) of the drum assembly (2), the leg column (19) comprises an outer rod (20) and an inner rod (21), the inner rod (21) is slidingly arranged in the outer rod (20), the lower end of the outer rod (20) is in contact with the ground, and the inclination angle adjusting structure comprises: An adjusting motor (22), the adjusting motor (22) is fixedly arranged on the outer rod (20), the output shaft of the adjusting motor (22) is perpendicular to the axis of the outer rod (20) and extends into the outer rod (20), and an adjusting gear (23) is fixedly connected on the output shaft; An adjusting rack (24) is fixedly arranged in the inner rod (21) and extends out of the inner rod (21) from below, and the adjusting rack (24) is engaged with the adjusting gear (23).

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