Four-layer type gravel screening machine

Abstract

The utility model discloses a four-layer type sand and stone screening machine which comprises a screening shell, screens are sequentially installed in the screening shell from top to bottom, the apertures of the screens are gradually reduced, the screens are obliquely arranged, a flow guide assembly corresponding to the screens is arranged on one side of the screening shell, a first flow guide frame is fixedly installed on one side of the screening shell, and a second flow guide frame is fixedly installed on the other side of the screening shell. The second flow guide frame is adjustably installed on one side of the first flow guide frame through an installation assembly, one end of the flow guide plate is rotationally connected with the second flow guide frame, and the other end of the flow guide plate is slidably arranged with the inner wall of the first flow guide frame as the track. The screening shell, the screen and the flow guide assembly are used in a matched mode, the flow guide assembly comprises the first flow guide frame, the second flow guide frame, the installation assembly and the flow guide plate, and therefore under the action of the installation assembly, the position of the second flow guide frame on one side of the first flow guide frame can be changed; and therefore, the materials screened and discharged from the plurality of screens are discharged from different positions.

Description

Technical Field

[0001] The utility model relates to the field of screening machines, in particular to a four-layer sand and stone screening machine. Background Art

[0002] A sand and gravel screening machine is a device for screening sand and gravel. It usually consists of a screening shell, multiple layers of inclined screening nets and a driving mechanism for driving the screening nets to swing. The multiple layers of screening nets are usually installed in an up-and-down stack, and the apertures of the screening nets decrease from top to bottom.

[0003] Since the screening meshes inside the screening shell are installed and placed in sequence up and down, the materials discharged by the multiple layers of screening meshes are all discharged from one side of the screening shell. Therefore, it is necessary to divert and discharge the materials discharged from the screening meshes at different levels to avoid the situation where the screened materials are discharged and mixed together. When guiding the materials discharged from the screening mesh, a guide frame is usually used to guide the materials, and the guide frame is fixedly installed on one side of the screening shell. The existing guide frame is usually arranged as an integrated whole, which makes it inconvenient to change the position of the guide frame to guide and discharge the materials according to the number of screening meshes inside the screening shell. Utility Model Content

[0004] The purpose of the utility model is to provide a four-layer sand and gravel screening machine to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a four-layer sand and stone screening machine, comprising a screening shell, wherein screens with gradually decreasing apertures are sequentially installed from top to bottom inside the screening shell, and the screens are arranged obliquely;

[0006] A flow guide component corresponding to the screen is provided on one side of the screening housing, and the flow guide component includes:

[0007] A first flow guide frame, wherein the first flow guide frame is fixedly installed on one side of the screening shell;

[0008] A second flow guide frame and a mounting assembly, wherein the second flow guide frame can be adjustably mounted on one side of the first flow guide frame through the mounting assembly;

[0009] A guide plate, one end of which is rotatably connected to a second guide frame, and the other end of which is slidably arranged with the inner wall of the first guide frame as a track.

[0010] Preferably, a fixing block is fixedly connected to the top of the second guide frame, a connecting shaft is fixedly connected to the top of the guide plate, and an outer wall of the connecting shaft is rotatably interlaced and sleeved with the fixing block.

[0011] Preferably, the top of the guide plate is fixedly connected with a positioning shaft, the top of the first guide frame is symmetrically fixedly connected with a fixing plate, the top of the fixing plate is provided with a connecting hole, and the outer wall of the positioning shaft is slidably connected with the inner cavity of the connecting hole.

[0012] Preferably, the installation assembly includes:

[0013] A connecting frame, wherein the connecting frame is fixedly connected to the bottom of the first flow guide frame;

[0014] A mounting plate, the mounting plate is fixedly connected to the bottom of the second flow guide frame, and one end of the outer wall of the mounting plate is slidably sleeved with the connecting frame;

[0015] A positioning rod is slidably arranged inside the connecting frame to lock the mounting plate.

[0016] Preferably, a slider is symmetrically fixedly connected to the bottom of the mounting plate, a sliding hole is symmetrically opened at the bottom of the inner wall of the connecting frame, and the outer wall of the slider is slidably sleeved with the inner cavity of the sliding hole.

[0017] Preferably, a first limit plate is fixedly sleeved on one end of the inner cavity of the connecting frame, a second limit plate is slidably sleeved inside the connecting frame, the outer wall of the positioning rod has the first limit plate slidably inserted and sleeved, and the outer wall of the positioning rod is fixedly inserted and sleeved with the second limit plate.

[0018] Preferably, the outer wall of the positioning rod is slidably sleeved with a limit spring, and the limit spring is located between the first limit plate and the second limit plate. The end of the positioning rod is fixedly connected to a connecting plate, and one side of the connecting plate is fixedly connected to a connecting rope. The bottom of the first guide frame is rotatably connected to a handle, and one end of the connecting rope is fixedly connected to the handle.

[0019] Technical effects and advantages of the utility model:

[0020] The utility model utilizes the coordinated use of a screening shell, a screen and a guide assembly, wherein the guide assembly includes a first guide frame, a second guide frame, a mounting assembly and a guide plate, so that under the action of the mounting assembly, the position of the second guide frame on one side of the first guide frame can be changed, so that materials screened and discharged from multiple screens can be discharged from different positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0022] Figure 2 It is a schematic diagram of the overall structure of the first flow guide frame of the utility model.

[0023] Figure 3It is a schematic diagram of the internal structure of the front side of the connecting frame of the utility model.

[0024] Figure 4 It is a schematic diagram of the overall structure of the positioning rod of the utility model.

[0025] In the figure: 1. screening shell; 2. screen; 3. guide assembly; 31. first guide frame; 32. second guide frame; 33. mounting assembly; 331. connecting frame; 332. mounting plate; 333. positioning rod; 334. slider; 335. first limit plate; 336. second limit plate; 337. limit spring; 338. connecting plate; 339. connecting rope; 3310. handle; 34. guide plate; 35. fixing block; 36. connecting shaft; 37. fixing plate; 38. positioning shaft; 39. connecting hole. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] The utility model provides Figure 1-4 A four-layer sand and stone screening machine shown in the figure comprises a screening shell 1, wherein screens 2 with gradually decreasing apertures are sequentially installed from top to bottom inside the screening shell 1, and the screens 2 are arranged at an inclination, and a flow guide assembly 3 corresponding to the screens 2 is arranged on one side of the screening shell 1, and the number of the flow guide assemblies 3 corresponds to the number of the screens 2, and the flow guide assembly 3 comprises a first flow guide frame 31, a second flow guide frame 32, an installation assembly 33 and a flow guide plate 34, the first flow guide frame 31 is fixedly installed on one side of the screening shell 1, and the second flow guide frame 32 is adjustably installed on one side of the first flow guide frame 31 through the installation assembly 33, the first flow guide frame 31 and the second flow guide frame 32 have the same inclination angle as the screen 2, and the first flow guide frame 3 1 is lower than the height of the corresponding screen 2, so that the first guide frame 31 can receive the material discharged by the screen 2. One end of the guide plate 34 is rotatably connected with the second guide frame 32, and the other end of the guide plate 34 is slidably set with the inner wall of the first guide frame 31 as a track, and the position of the second guide frame 32 on one side of the first guide frame 31 is changed. The two guide plates 34 can gather and guide the material inside the first guide frame 31 into the second guide frame 32, so that multiple screens 2 are diverted and discharged through the second guide frames 32 with different horizontal orientations, and the sum of the widths of the multiple second guide frames 32 is less than the width of the screening shell 1, thereby avoiding the overlap of multiple second guide frames 32.

[0028] Specifically, the top of the second guide frame 32 is fixedly connected with a fixing block 35, the top of the guide plate 34 is fixedly connected with a connecting shaft 36, the outer wall of the connecting shaft 36 is rotatably inserted and sleeved with the fixing block 35, the top of the guide plate 34 is fixedly connected with a positioning shaft 38, the top of the first guide frame 31 is symmetrically fixedly connected with a fixing plate 37, the top of the fixing plate 37 is provided with a connecting hole 39, the outer wall of the positioning shaft 38 is slidably sleeved with the inner cavity of the connecting hole 39, so that when the second guide frame 32 slides on one side of the first guide frame 31, the second guide frame 32 drives one side of the guide plate 34 to move parallely through the fixing block 35 and the connecting shaft 36, and the other side of the guide plate 34 slides relative to the inner wall of the first guide frame 31 through the positioning shaft 38 and the fixing plate 37.

[0029] The cam 332 is provided with a plurality of locating rods 333, wherein the ...

[0030] Furthermore, one end of the inner cavity of the connecting frame 331 is fixedly sleeved with a first limit plate 335, the interior of the connecting frame 331 is slidably sleeved with a second limit plate 336, the outer wall of the positioning rod 333 is slidably inserted and sleeved with the first limit plate 335, the outer wall of the positioning rod 333 is fixedly inserted and sleeved with the second limit plate 336, the outer wall of the positioning rod 333 is slidably sleeved with a limit spring 337, the limit spring 337 is located between the first limit plate 335 and the second limit plate 336, and the second limit plate 336 is located between the first limit plate 335 and the mounting plate 332, so that the limit spring 337 can provide a positioning The rod 333 has an elastic force to ensure the stability of the positioning rod 333 in being clamped with the mounting plate 332. The end of the positioning rod 333 is fixedly connected to the connecting plate 338. One side of the connecting plate 338 is fixedly connected to the connecting rope 339. The bottom of the first guide frame 31 is rotatably connected to the handle 3310. One end of the connecting rope 339 is fixedly connected to the handle 3310. When the connecting rope 339 is pulled by the handle 3310, the connecting rope 339 can drive multiple positioning rods 333 to move through the connecting plate 338, so that the positioning rod 333 is separated from the mounting plate 332, so as to facilitate the position adjustment of the second guide frame 32.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A four-layer sand and stone screening machine, comprising a screening housing (1), wherein screens (2) with gradually decreasing apertures are sequentially installed inside the screening housing (1) from top to bottom, and the screens (2) are arranged at an angle; It is characterized in that A flow guide component (3) corresponding to the screen (2) is provided on one side of the screening housing (1), and the flow guide component (3) comprises: A first flow guiding frame (31), wherein the first flow guiding frame (31) is fixedly mounted on one side of the screening housing (1); A second flow guiding frame (32) and a mounting assembly (33), wherein the second flow guiding frame (32) is adjustably mounted on one side of the first flow guiding frame (31) via the mounting assembly (33); A guide plate (34), one end of which is rotatably connected to a second guide frame (32), and the other end of which is slidably arranged with the inner wall of the first guide frame (31) as a track.

2. A four-layer sand and stone screening machine according to claim 1, characterized in that: The top of the second guide frame (32) is fixedly connected to a fixed block (35), the top of the guide plate (34) is fixedly connected to a connecting shaft (36), and the outer wall of the connecting shaft (36) is rotatably interlaced and sleeved with the fixed block (35).

3. A four-layer sand and stone screening machine according to claim 2, characterized in that: The top of the guide plate (34) is fixedly connected to a positioning shaft (38), the top of the first guide frame (31) is symmetrically fixedly connected to a fixing plate (37), the top of the fixing plate (37) is provided with a connecting hole (39), and the outer wall of the positioning shaft (38) is slidably sleeved with the inner cavity of the connecting hole (39).

4. A four-layer sand and stone screening machine according to claim 1, characterized in that: The mounting assembly (33) comprises: A connecting frame (331), wherein the connecting frame (331) is fixedly connected to the bottom of the first flow guide frame (31); A mounting plate (332), wherein the mounting plate (332) is fixedly connected to the bottom of the second flow guide frame (32), and one end of the outer wall of the mounting plate (332) is slidably sleeved with the connecting frame (331); A positioning rod (333) is slidably disposed inside the connecting frame (331) to lock the mounting plate (332) in a clamping manner.

5. A four-layer sand and stone screening machine according to claim 4, characterized in that: The bottom of the mounting plate (332) is symmetrically fixedly connected with a slider (334), the bottom of the inner wall of the connecting frame (331) is symmetrically provided with a sliding hole, and the outer wall of the slider (334) is slidably sleeved with the inner cavity of the sliding hole.

6. A four-layer sand and stone screening machine according to claim 4, characterized in that: A first limiting plate (335) is fixedly sleeved on one end of the inner cavity of the connecting frame (331), a second limiting plate (336) is slidably sleeved inside the connecting frame (331), the outer wall of the positioning rod (333) is slidably inserted and sleeved with the first limiting plate (335), and the outer wall of the positioning rod (333) is fixedly inserted and sleeved with the second limiting plate (336).

7. A four-layer sand and stone screening machine according to claim 6, characterized in that: The outer wall of the positioning rod (333) is slidably sleeved with a limit spring (337), and the limit spring (337) is located between the first limit plate (335) and the second limit plate (336). The end of the positioning rod (333) is fixedly connected to a connecting plate (338), and one side of the connecting plate (338) is fixedly connected to a connecting rope (339). The bottom of the first flow guide frame (31) is rotatably connected to a handle (3310), and one end of the connecting rope (339) is fixedly connected to the handle (3310).

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