Multifunctional sand screening machine for water conservancy project

Abstract

The multifunctional sand screening machine for the water conservancy project comprises a machine box, a feeding port and a discharging port are formed in the top and the bottom of the machine box respectively, a detachable screen cloth assembly is arranged below the feeding port, two conveying rollers are arranged below the screen cloth assembly, a conveying belt is arranged between the two conveying rollers, and the conveying belt is connected with the discharging port. The bottom face of the left side of the discharging port is lower than the surface of the conveying belt, a rotating rod connected with the driving motor is arranged above the screen assembly, and a plurality of stirring rods are arranged on the periphery of the rotating rod. The screening device prevents caked sand from being difficult to screen, and is high in screening efficiency, short in screening time and convenient to replace the screen.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy project construction, in particular to a multifunctional sand screening machine for water conservancy projects. Background Art

[0002] Water conservancy projects are projects built to control and allocate natural surface water and groundwater to achieve the purpose of eliminating harm and promoting benefits. They are also called water projects. Water is a valuable resource that is indispensable to human production and life, but its natural state does not fully meet human needs. Only by building water conservancy projects can we control water flow, prevent floods and waterlogging disasters, and regulate and distribute water to meet people's needs for water resources in life and production. Water conservancy projects require the construction of different types of hydraulic structures such as dams, dikes, spillways, sluices, water inlets, channels, ferries, rafts, fishways, etc. to achieve their goals.

[0003] When traditional water conservancy projects screen sand, the sand is often wet, which makes it easy to clump and clog the screen; when replacing screens with different mesh sizes, it is often difficult to replace and the replacement time is long, reducing work efficiency. Utility Model Content

[0004] The utility model aims to provide a multifunctional sand screening machine for water conservancy projects, which solves the above-mentioned problems existing in the prior art by arranging a stirring rod, a detachably installed screen, a transmission roller, a transmission belt and a heater.

[0005] In order to solve the above technical problems, the utility model adopts the following solutions:

[0006] A multifunctional sand screening machine for water conservancy projects comprises a chassis, wherein a feed port and a discharge port are respectively arranged at the top and bottom of the chassis, a detachable screen assembly is arranged below the feed port, two transmission rollers are arranged below the screen assembly, a transmission belt is arranged between the two transmission rollers, a left bottom surface of the discharge port is lower than the surface of the transmission belt, a rotating rod connected to a driving motor is arranged above the screen assembly, and a plurality of stirring rods are arranged on the periphery of the rotating rod.

[0007] Preferably, the screen assembly comprises a screen and guide plates with inclined ends at the screen, the guide plates are provided with protrusions, and the inner wall of the chassis is symmetrically provided with assembly grooves, and the protrusions are located in the assembly grooves.

[0008] Preferably, a first spring is provided at the bottom of the assembly groove, a mounting block is provided at the top of the first spring, and the protrusion is located above the mounting hole.

[0009] Preferably, a fixing plate is arranged below the screen, one end of the fixing plate is fixedly connected to the inner wall of the chassis, and an automatic telescopic rod detachably connected to the guide plate is arranged above the fixing plate.

[0010] Preferably, a sleeve is provided on a side of the fixing plate away from the chassis, a second spring is provided inside the sleeve, and a through plate is provided at the bottom of the guide plate, and the through plate is located above the second spring.

[0011] Preferably, a concave block is arranged above the second spring, a plurality of rollers are arranged on the top of the concave block, a plurality of rollers are arranged at the bottom end of the insertion plate, and the rollers are in contact with the rollers.

[0012] Preferably, fans connected to the air inlet duct are provided on both sides of the rotating rod.

[0013] Preferably, a heater is provided on the top of the chassis.

[0014] The utility model has the beneficial effects:

[0015] The stirring rod, heater and fan provided in the utility model can break up the incoming sand to be screened, and use the fan to dry the moisture inside the sand to prevent the agglomerated sand from being difficult to screen. The convex block and the interleaving plate provided on the guide plate in the screen assembly are installed in the assembly groove and the sleeve, and the roller at the bottom of the interleaving plate moves above the rotating roller of the concave block to disassemble and assemble the screen, and the first spring and the second spring provide activity space and buffering effect for the screening of the screen, so the screening efficiency is high, the screening time is short, and the screen is easy to replace. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the assembly structure of the insertion plate and the roller of the utility model;

[0018] Figure 3 For this utility model Figure 1 A schematic diagram of the partially enlarged structure of the middle circle A;

[0019] Figure 4 For this utility model Figure 1 Schematic diagram of the partially enlarged structure of the middle circle B.

[0020] Figure markings: 1-chassis, 10-feed port, 11-discharge port, 12-fan, 13-air inlet duct, 14-assembly groove, 140-first spring, 144-mounting plate, 2-drive motor, 3-rotating rod, 4-stirring rod, 5-screen assembly, 50-screen, 51-guide plate, 510-bump, 52-interspersed plate, 520-roller, 53-automatic telescopic rod, 54-fixed plate, 55-sleeve, 550-second spring, 551-concave block, 552-roller, 6-transmission roller, 7-transmission belt, 8-heater. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below in conjunction with the embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0022] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inside", "outside", "front", "back", "top", "bottom", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0023] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "open", "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Example 1

[0025] Embodiment 1 of the utility model is a multifunctional sand screening machine for water conservancy projects, comprising a chassis 1, wherein a feed port 10 and a discharge port 11 are respectively provided at the top and bottom of the chassis 1, a detachable screen assembly 5 is provided below the feed port 10, two transmission rollers 6 are provided below the screen assembly 5, a transmission belt 7 is provided between the two transmission rollers 6, a left bottom surface of the discharge port 11 is lower than the surface of the transmission belt 7, a rotating rod 3 connected to a driving motor 2 is provided above the screen assembly 5, and a plurality of stirring rods 4 are provided on the periphery of the rotating rod 3.

[0026] Reference Figure 1 and Figure 2In the present application, a feed port 10, a stirring rod 4 on the periphery of a rotating rod 3, a screen assembly 5, a transmission roller 6 and a transmission belt 7, and a discharge port 11 are sequentially arranged on the top of the sand screening machine chassis 1 from top to bottom. When the sand to be screened enters the interior of the chassis 1 from the feed port 10, the driving motor 2 causes the stirring rod 4 on the periphery of the rotating rod 3 to stir, so that the stirring rod 4 stirs the agglomerated sand, and the agglomerated sand falls onto the screen assembly 5. The screen assembly 5 reciprocates up and down under the action of an external controller to perform mechanical screening. The screened sand falls onto the surface of the transmission belt 7, and then is transported from left to right to the discharge port 11 by the transmission roller 6. The screen assembly 5 is disassembled from the chassis 1 in a push-pull manner, and the sand above it is collected and reinstalled for the next use. The sand screening machine breaks up the agglomerated sand and then screens it, which improves the screening efficiency, shortens the screening time, solves the problem of clogging the screen assembly 5 due to excessive moisture in the sand, and is convenient for disassembly and assembly.

[0027] In some preferred embodiments, the screen assembly 5 includes a screen 50 and guide plates 51 with inclined ends at the screen 50 , the guide plates 51 are provided with protrusions 510 , the inner wall of the chassis 1 is symmetrically provided with assembly grooves 14 , and the protrusions 510 are located in the assembly grooves 14 .

[0028] Specifically, the guide plate 51 is mainly used to guide the stirred sand to the top of the screen 50, to guide the sand and prevent the sand from accumulating at the end of the screen 50. The protrusion 510 set on the top of the guide plate 51 is located in the assembly groove 14 of the chassis 1. When disassembling the screen 50, it is only necessary to insert the protrusion 510 into the assembly groove 14 for pushing and pulling, which is convenient for disassembly and assembly.

[0029] In some preferred embodiments, a first spring 140 is provided at the bottom of the assembly groove 14 , a mounting block is provided at the top of the first spring 140 , and the protrusion 510 is located above the mounting hole.

[0030] Specifically, refer to Figure 3 The first spring 140 and the mounting block provided in the assembly groove 14 provide accommodation space for the installation of the protrusion 510 and the screening activity of the screen 50. The first spring 140 is compressed under the elastic action, so that the protrusion 510 is inserted more quickly above the mounting block. The number of the first springs 140 is set according to the actual situation, and multiple first springs 140 in the same direction are provided with one mounting block. During the screening activity, the first spring 140 provides an elastic reset function for the screen 50.

[0031] In some preferred embodiments, a fixing plate 54 is provided below the screen 50 , one end of the fixing plate 54 is fixedly connected to the inner wall of the chassis 1 , and an automatic telescopic rod 53 detachably connected to the guide plate 51 is provided above the fixing plate 54 .

[0032] Reference Figure 4 The purpose of setting the fixing plate 54 is to provide conditions for the installation of the automatic telescopic rod 53. The telescopic end of the automatic telescopic rod 53 is detachably connected to the guide plate 51. The specific detachable connection method is an interlaced structure or other methods, which will not be described in detail here. The external controller drives the automatic telescopic rod 53 to work reciprocatingly, thereby also driving the guide plates 51 on both sides of the screen 50 to move up and down to screen the sand, and the first spring 140 provides elastic buffering for the movement of the guide plate 51, thereby extending the service life of the screen 50 and the guide plate 51.

[0033] In some preferred embodiments, a sleeve 55 is provided on a side of the fixing plate 54 away from the chassis 1, a second spring 550 is provided inside the sleeve 55, a through plate 52 is provided at the bottom of the guide plate 51, and the through plate 52 is located above the second spring 550. A concave block 551 is provided above the second spring 550, a plurality of rollers 552 are provided on the top of the concave block 551, a plurality of rollers 520 are provided at the bottom end of the through plate 52, and the rollers 520 and the rollers 552 are in contact with each other.

[0034] Specifically, the interleaving plate 52 disposed at the bottom of the guide plate 51 is located in the sleeve 55, which is used to stabilize the installation of the screen 50 inside the chassis 1 on the one hand, and to provide a buffer condition for the screening activity of the screen 50 on the other hand. When the screen 50 is disassembled, the roller 520 rolls over the roller 552 at the junction of the roller 552 assembled in the concave block 551 disposed at the top of the second spring 550 and the roller 520 at the bottom of the interleaving plate 52, making the installation of the interleaving plate 52 in the sleeve 55 more convenient. At the same time, during the screening process, the second spring 550 provides a buffer or activity space for the up and down activities of the screen 50 through the guide plate 51, thereby improving the screening efficiency of the screen 50.

[0035] In some preferred embodiments, fans 12 connected to the air inlet duct 13 are provided on both sides of the rotating rod 3. A heater 8 is provided on the top of the chassis 1.

[0036] The fan 12 and heater 8 provided in the chassis 1 of the present application reduce the water content in the sand and reduce the formation of sand lumps. At the same time, they cooperate with the stirring rod 4 to shorten the screening time of the sand after stirring, heating and the fan 12 entering the screen 50, thereby improving work efficiency.

[0037] When the utility model is used, the heater 8 and the fan 12 in the chassis 1 are started, so that the sand to be screened entering the chassis 1 is first broken up into blocks under the action of the stirring rod 4, the water content in the sand is reduced, and the block sand is prevented from blocking the screen 50, and the automatic telescopic rod 53 is started to work, thereby driving the guide plate 51 detachably connected to the automatic telescopic rod 53 to reciprocate up and down, so that the screen 50 performs up and down screening activities on the sand, so that the screened sand falls on the surface of the conveyor belt 7 and moves toward the discharge port 11 under the action of the conveyor roller 6. During the screening process, the convex block 510 and the interleaving plate 52 provided on the guide plate 51 are respectively assembled above the first spring 140 and the second spring 550, providing conditions for the disassembly and assembly of the screen 50 and providing space for the activity of the screen 50, and at the same time, the roller 520 at the bottom of the interleaving plate 52 rolls above the roller 552 provided in the convex block, so that the interleaving plate 52 is easy to install.

[0038] The above is only a preferred embodiment of the utility model and does not limit the utility model in any form. According to the technical essence of the utility model, within the spirit and principles of the utility model, any simple modification, equivalent replacement and improvement made to the above embodiment still falls within the protection scope of the technical solution of the utility model.

Claims

1. A multifunctional sand screening machine for water conservancy projects, characterized in that: The invention comprises a chassis (1), wherein the top and bottom of the chassis (1) are respectively provided with a feed port (10) and a discharge port (11), a detachable screen assembly (5) is provided below the feed port (10), two transmission rollers (6) are provided below the screen assembly (5), a transmission belt (7) is provided between the two transmission rollers (6), the left bottom surface of the discharge port (11) is lower than the surface of the transmission belt (7), a rotating rod (3) connected to a driving motor (2) is provided above the screen assembly (5), and a plurality of stirring rods (4) are provided on the periphery of the rotating rod (3).

2. A multifunctional sand screening machine for water conservancy projects according to claim 1, characterized in that: The screen assembly (5) comprises a screen (50) and guide plates (51) with inclined ends at the screen (50), the guide plates (51) being provided with protrusions (510), the inner wall of the chassis (1) being symmetrically provided with assembly grooves (14), and the protrusions (510) being located in the assembly grooves (14).

3. A multifunctional sand screening machine for water conservancy projects according to claim 2, characterized in that: A first spring (140) is provided at the bottom of the assembly groove (14), a mounting block is provided at the top of the first spring (140), and the protrusion (510) is located above the mounting hole.

4. The multifunctional sand screening machine for water conservancy projects according to claim 2, characterized in that: A fixing plate (54) is arranged below the screen (50), one end of the fixing plate (54) is fixedly connected to the inner wall of the chassis (1), and an automatic telescopic rod (53) detachably connected to the guide plate (51) is arranged above the fixing plate (54).

5. The multifunctional sand screening machine for water conservancy projects according to claim 4, characterized in that: A sleeve (55) is provided on a side of the fixing plate (54) away from the chassis (1), a second spring (550) is provided inside the sleeve (55), and a through plate (52) is provided at the bottom of the guide plate (51), and the through plate (52) is located above the second spring (550).

6. A multifunctional sand screening machine for water conservancy projects according to claim 5, characterized in that: A concave block (551) is arranged above the second spring (550), a plurality of rollers (552) are arranged on the top of the concave block (551), a plurality of rollers (520) are arranged at the bottom end of the insertion plate (52), and the rollers (520) and the rollers (552) are in contact with each other.

7. The multifunctional sand screening machine for water conservancy projects according to claim 5, characterized in that: Fans (12) connected to the air inlet duct (13) are provided on both sides of the rotating rod (3).

8. The multifunctional sand screening machine for water conservancy projects according to claim 5, characterized in that: A heater (8) is provided on the top of the chassis (1).

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