Gravel screening machine for building construction

Abstract

The utility model relates to the technical field of sandstone screening machines, in particular to a sandstone screening machine for building construction, which comprises a base, a screening box is arranged on the upper end face of the base, a screen is slidably connected to the inside of the screening box through a plurality of obliquely arranged limiting grooves, and the outer wall of the screening box is communicated with a plurality of discharging pipes corresponding to the screen. A vibrating mechanism is arranged on the left side of the screening box and comprises a motor, the motor is installed on the left end face of the base, the output end of the motor penetrates through the base and is fixedly connected with a rotating disc, the right end face of the rotating disc is fixedly connected with an eccentric shaft, and the outer wall of the eccentric shaft is movably connected with a driving rod through a bearing; the multiple screens with different hole diameters are installed in the screening box, the multiple discharging openings matched with the screens are formed in the outer wall of the screening box, gravel with different sizes can be conveniently classified at a time, and the purposes that multi-stage gravel with different particle sizes can be screened at a time, and the working efficiency is high are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of sand and gravel screening machines, in particular to a sand and gravel screening machine for construction. Background Art

[0002] The screening machine is a vibrating screening machine that utilizes the relative movement between bulk materials and the screen surface to allow some particles to pass through the screen holes and separate materials such as sand, gravel, and crushed stone into different grades according to particle size.

[0003] The Chinese patent disclosed patent number CN214515894U is a sand and gravel screening device for construction, which is mainly composed of a first motor, gears, sliding rods, partitions and other mechanisms. When working, the first motor is started, the first motor drives the gear to rotate, the gear drives the sliding rod to move, the sliding rod drives the rotating rod to rotate, and the rotating rod rotates the screen frame, so that the screen frame is in an inclined state, and then the partition is lifted upward, and the partition is opened by using the insertion rod and the round hole to cooperate with each other, so that the remaining sand and gravel slide down under the influence of gravity to complete the screening work.

[0004] The mesh size and particle size inside the screen frame of the above-mentioned device are fixed, so that the size of the screened sand and gravel is single, and multiple levels of sand and gravel with different sizes cannot be screened out at one time, the working efficiency is low, and the screen is fixedly connected to the screen frame. When the screen is damaged, it needs to be replaced together with the screen frame, which is inconvenient to use. Therefore, a sand and gravel screening machine for construction is proposed. Utility Model Content

[0005] The utility model aims to provide a sand and gravel screening machine for construction, which can screen out sand and gravel of multiple levels with different particle sizes at one time, has the characteristics of high working efficiency and convenient disassembly and replacement of damaged screens.

[0006] The utility model aims to provide a sand and gravel screening machine for construction, comprising a base, wherein the upper end surface of the base is provided with a screening box, the interior of the screening box is slidably connected with a screen through a plurality of inclined limit grooves, and the outer wall of the screening box is connected with a plurality of feed pipes corresponding to the screen;

[0007] A vibration mechanism is provided on the left side of the screening box, and the vibration mechanism includes a motor, which is installed on the left end face of the base, and the output end of the motor passes through the base and is fixedly connected to a turntable, and the right end face of the turntable is fixedly connected to an eccentric shaft, and the outer wall of the eccentric shaft is movably connected to a driving rod through a bearing, and the other end of the driving rod is movably connected to a supporting shaft through a bearing, and the right end face of the supporting shaft is fixedly connected to a supporting block, and the upper end face of the supporting block is fixedly connected to a supporting rod, and the upper end face of the supporting rod is fixedly connected to a fixing plate, and the right end face of the fixing plate is fixedly connected to the screening box.

[0008] In order to facilitate the replacement of the screen, as a preferred sand and gravel screening machine for construction of the utility model, the right end face of the screening box is fixedly connected with a plurality of limit blocks matching the limit grooves, and the plurality of limit blocks are respectively detachably connected to the plurality of screens by bolts.

[0009] In order to facilitate the limiting of the support rod, as a preferred sand and gravel screening machine for construction of the utility model, the left end face inside the base is fixedly connected to a limiting plate, and the other end of the limiting plate is sleeved on the outer wall of the support rod and movably connected to the support rod.

[0010] In order to facilitate the screening of different grades of sand and gravel, as a preferred embodiment of the sand and gravel screening machine for construction of the utility model, the diameters of the mesh holes on the upper end surfaces of the plurality of sieves are different.

[0011] In order to export sand and gravel of different grades, as a preferred embodiment of the sand and gravel screening machine for construction of the utility model, the lengths of the plurality of discharge pipes are different.

[0012] In order to facilitate the loading and unloading of materials, as a preferred embodiment of the sand and gravel screening machine for construction of the utility model, the upper end surface and the lower end surface of the screening box are respectively connected with a loading port and a unloading port.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The utility model can conveniently classify sand and gravel of different sizes at one time by installing multiple screens with different apertures inside the screening box and arranging multiple feeding ports matching the screens on the outer wall of the screening box, so as to achieve the purpose of screening sand and gravel of multiple grades with different particle sizes at one time and high working efficiency;

[0015] By detachably connecting a plurality of screens to the limiting blocks through bolts, any damaged screen can be conveniently replaced, thereby achieving the purpose of facilitating the replacement of the screen. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 This is a cross-sectional structural diagram of the screening box of the utility model;

[0018] Figure 3 This is a structural diagram of the screen of the utility model;

[0019] Figure 4 This is the overall structural diagram of the screening box of the utility model;

[0020] In the figure: 1. base; 2. screening box; 3. motor; 4. turntable; 5. eccentric shaft; 6. driving rod; 7. supporting shaft; 8. supporting block; 9. supporting rod; 10. fixing plate; 11. limiting plate; 12. screen; 13. limiting groove; 14. feeding port; 15. feeding pipe; 16. discharging port; 17. limiting block. DETAILED DESCRIPTION

[0021] See also Figures 1 to 4 A sand and gravel screening machine for construction includes a base 1, a screening box 2 is arranged on the upper end surface of the base 1, a screen 12 is slidably connected to the inside of the screening box 2 through a plurality of inclined limiting grooves 13, and a plurality of feed pipes 15 corresponding to the screen 12 are connected to the outer wall of the screening box 2;

[0022] A vibration mechanism is provided on the left side of the screening box 2, and the vibration mechanism includes a motor 3, which is installed on the left end face of the base 1, and the output end of the motor 3 passes through the base 1 and is fixedly connected to a turntable 4, and the right end face of the turntable 4 is fixedly connected to an eccentric shaft 5, and the outer wall of the eccentric shaft 5 is movably connected to a driving rod 6 through a bearing, and the other end of the driving rod 6 is movably connected to a supporting shaft 7 through a bearing, and the right end face of the support shaft 7 is fixedly connected to a supporting block 8, and the upper end face of the support block 8 is fixedly connected to a supporting rod 9, and the upper end face of the support rod 9 is fixedly connected to a fixing plate 10, and the right end face of the fixing plate 10 is fixedly connected to the screening box 2.

[0023] In this embodiment: the starting motor 3 can drive the turntable 4 to rotate, and the rotation of the turntable 4 can drive the eccentric shaft 5 to rotate. When the eccentric shaft 5 rotates, it can prompt the driving rod 6 to move up and down. When the driving rod 6 moves up and down, it pulls the supporting shaft 7, the supporting block 8, and the supporting rod 9 to move up and down, thereby driving the screening box 2 to shake up and down. Through multiple inclined screens 12, sand and gravel of different particle sizes can be classified at one time, and the classified sand and gravel can be collected through the corresponding discharge pipe 15. The structure is simple and the working efficiency is high.

[0024] As a technical optimization solution of the utility model, a plurality of limit blocks 17 matching the limit grooves 13 are fixedly connected to the right end surface of the screening box 2, and the plurality of limit blocks 17 are detachably connected to the plurality of screens 12 by bolts.

[0025] In this embodiment, when the screen 12 is damaged, the screen 12 can be separated from the limiting block 17, so that the screen 12 can be replaced conveniently.

[0026] As a technical optimization solution of the utility model, the left end surface inside the base 1 is fixedly connected to a limiting plate 11 , and the other end of the limiting plate 11 is sleeved on the outer wall of the support rod 9 and movably connected to the support rod 9 .

[0027] In this embodiment, the support rod 9 can be limited by the limiting plate 11 , and the support rod 9 slides up and down inside the limiting plate 11 .

[0028] As a technical optimization solution of the present invention, the diameters of the mesh holes on the upper end surfaces of the plurality of screens 12 are different.

[0029] In this embodiment, different grades of sand and gravel can be easily screened out by using a plurality of screens 12 with different apertures.

[0030] As a technical optimization solution of the present invention, the lengths of the multiple feeding pipes 15 are different.

[0031] In this embodiment, different grades of sand and gravel can be conveniently discharged through the discharge pipes 15 of different lengths.

[0032] As a technical optimization solution of the utility model, the upper end surface and the lower end surface of the screening box 2 are respectively connected with a feed port 14 and a discharge port 16.

[0033] In this embodiment, the sand and gravel to be screened can be put into the screening box 2 through the feeding port 14, and the sand and gravel screened by the bottom screen 12 can be collected through the discharging port 16.

[0034] Working principle: When in use, first start the motor 3 to drive the turntable 4 to rotate. The rotation of the turntable 4 can drive the eccentric shaft 5 to rotate. When the eccentric shaft 5 rotates, it can prompt the driving rod 6 to move up and down. When the driving rod 6 moves up and down, it pulls the support shaft 7, the support block 8, and the support rod 9 to move up and down, thereby driving the screening box 2 to shake up and down, and then the sand and gravel that need to be screened can be put into the screening box 2 through the loading port 14, and then through a plurality of inclined screens 12, sand and gravel of different particle sizes can be classified at one time, and the classified sand and gravel can be collected through the corresponding discharge pipe 15. The structure is simple and the working efficiency is high. When the screen 12 is damaged, the screen 12 can be separated from the limit block 17, so that the screen 12 can be replaced conveniently.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sand and gravel screening machine for construction, comprising a base (1), characterized in that: The upper end surface of the base (1) is provided with a screening box (2), the interior of the screening box (2) is slidably connected with a screening mesh (12) via a plurality of inclined limiting grooves (13), and the outer wall of the screening box (2) is connected with a plurality of feeding pipes (15) corresponding to the screening mesh (12); A vibration mechanism is arranged on the left side of the screening box (2), and the vibration mechanism comprises a motor (3). The motor (3) is mounted on the left end face of the base (1), the output end of the motor (3) passes through the base (1) and is fixedly connected to a turntable (4), the right end face of the turntable (4) is fixedly connected to an eccentric shaft (5), the outer wall of the eccentric shaft (5) is movably connected to a driving rod (6) via a bearing, the other end of the driving rod (6) is movably connected to a supporting shaft (7) via a bearing, the right end face of the supporting shaft (7) is fixedly connected to a supporting block (8), the upper end face of the supporting block (8) is fixedly connected to a supporting rod (9), the upper end face of the supporting rod (9) is fixedly connected to a fixing plate (10), and the right end face of the fixing plate (10) is fixedly connected to the screening box (2).

2. A sand and gravel screening machine for construction according to claim 1, characterized in that: A plurality of limit blocks (17) matching the limit grooves (13) are fixedly connected to the right end surface of the screening box (2), and the plurality of limit blocks (17) are detachably connected to the plurality of screens (12) via bolts.

3. A sand and gravel screening machine for construction according to claim 1, characterized in that: The left end surface inside the base (1) is fixedly connected to a limiting plate (11), and the other end of the limiting plate (11) is sleeved on the outer wall of the support rod (9) and movably connected to the support rod (9).

4. A sand and gravel screening machine for construction according to claim 1, characterized in that: The diameters of the mesh holes on the upper end surfaces of the plurality of sieves (12) are different.

5. A sand and gravel screening machine for construction according to claim 1, characterized in that: The lengths of the plurality of feed pipes (15) are different.

6. A sand and gravel screening machine for construction according to claim 1, characterized in that: The upper end surface and the lower end surface of the screening box (2) are respectively connected to a feed port (14) and a discharge port (16).

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