Portable gravel aggregate test screening machine

Abstract

The utility model discloses a portable sandstone aggregate test screening machine, belongs to the technical field of sandstone aggregate processing, and mainly solves the technical problems that in the prior art, screening equipment is poor in screening effect during use, sandstone aggregate only falls onto a screen for screening operation, the sandstone aggregate cannot be screened as thoroughly as possible, and the screening efficiency is high. The screening machine comprises a screening box, a feeding hopper is arranged at the top of the screening box in a penetrating mode, a box door is arranged on the front face of the screening box through hinges, and two sliding doors are arranged on the front face of the box door through hinges; two guide grooves are formed in the inner walls of the two sides of the screening box, movable seats are slidably mounted in the guide grooves, a storage basket is movably arranged between the two movable seats, a first-stage screen and a second-stage screen are embedded into the bottoms of the two storage baskets, a fine sand box is arranged on the inner bottom wall of the screening box, and vibration assemblies are arranged at the bottoms of the two movable seats.

Description

Technical Field

[0001] The utility model relates to the technical field of sandstone aggregate processing, and more specifically, particularly relates to a portable sandstone aggregate testing screening machine. Background Art

[0002] Sand and gravel aggregate is a general term for materials such as sand, pebbles, crushed stones, blocks, and rubble stones in construction projects. Sand and gravel are often used as high-quality building materials and concrete raw materials due to their good hardness and stable chemical properties. They are widely used in houses, roads, highways, railways and other fields. With the requirements of infrastructure construction technology, there are higher requirements for the quantity and quality of sand and gravel. After crushing, the crushed sand and gravel aggregates need to be ground again, and a screening machine should be used to complete the screening of the sand and gravel aggregates.

[0003] However, there are various types of screening machines in the prior art. For example, utility model patent CN219518999U relates to a sand and gravel aggregate crushing and screening device. The utility model is provided with a crusher, and cover plates are movably connected on both sides of the crusher. The baffle separates the crushed sand and gravel aggregates onto two screens for screening. When one of the screens is damaged and needs to be replaced, the position of the movable plate is adjusted to close the feed hole above the damaged screen, so that the sand and gravel aggregates can only fall onto the normal screen from the other side of the baffle, thereby maintaining normal screening operation, avoiding the phenomenon of stopping the machine to replace the screen, and improving the sand and gravel processing efficiency.

[0004] Although the screening equipment is easy to replace the screen and has high processing efficiency, the screening effect of the screening equipment is poor when in use. The screening operation is only carried out by dropping the sand and gravel aggregates onto the screen, and the sand and gravel aggregates cannot be screened as thoroughly as possible. It is also difficult to screen sand and gravel aggregates of different sizes and classify them into multiple particle sizes. In order to avoid this phenomenon, it is necessary to design a portable sand and gravel aggregate test screening machine. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] In order to achieve the above purpose, the utility model provides a portable sand and gravel aggregate test screening machine, which is achieved by the following specific technical means:

[0007] A portable sand and gravel aggregate testing screening machine comprises a screening box, a feeding hopper is arranged through the top of the screening box, a box door is arranged on the front of the screening box through hinges, two drawer doors are arranged on the front of the box door through hinges, two guide grooves are arranged on the inner walls on both sides of the screening box, movable seats are slidably installed inside the guide grooves, a storage basket is movably arranged between the two movable seats, a primary screen and a secondary screen are embedded in the bottom of the two storage baskets, a fine sand box is arranged on the inner bottom wall of the screening box, and a vibration assembly is arranged at the bottom of the two movable seats.

[0008] Preferably, the vibration component is a transmission shaft, a transmission disk, a fixed shaft, a rocker, a rotating shaft, a fixed frame and a connecting plate. The outer surface of one side of the screening box is rotatably connected to two transmission shafts through a bearing, one end of the transmission shaft is fixed with a transmission disk, and the transmission disk is located in the screening box, one side surface of the transmission disk is fixedly connected to the fixed shaft, and the surface of the fixed shaft is rotatably connected to the rocker through a bearing.

[0009] Preferably, the surfaces of the two movable seats close to each other are fixedly connected with a connecting plate, and a fixing frame is provided at the bottom of each connecting plate. The interior of the fixing frame is rotatably connected with a rotating shaft through a bearing, and the rotating shaft is fixed to one end of the rocker.

[0010] Preferably, the secondary screen is located below the primary screen, the inner wall of the screening box is provided with a guide hopper, and the guide hopper is fixed below the secondary screen.

[0011] Preferably, sliding grooves are provided on surfaces of the two movable seats that are close to each other, and sliding bars are slidably installed inside the two sliding grooves, and the sliding bars are fixed to the storage basket.

[0012] Preferably, pulleys are fixed on the surfaces of the two transmission shafts, and transmission belts are sleeved on the surfaces of the two pulleys. A support plate is fixedly connected to the outer surface of one side of the screening box, a servo motor is fixedly installed on the top of the support plate, and the output end of the servo motor is fixed to one end of one of the transmission shafts.

[0013] Preferably, a guide seat is fixed to the inner wall of the screening box, a matching seat is provided at the bottom of the guide seat, a mounting shell is fixedly connected to the interior of the screening box, and the mounting shell is fixed under the matching seat, a rotating motor is fixedly installed inside the mounting shell, and the output end of the rotating motor is rotatably connected to a rotating rod through a bearing, one end of the rotating rod is fixedly connected to a grinding block, and the grinding block matches the matching seat.

[0014] Preferably, a base is provided at the bottom of the screening box, and a plurality of moving wheels are installed at the bottom of the base.

[0015] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0016] After the sand and gravel aggregates are ground, they fall onto the primary screen. The servo motor provides driving force to the transmission shaft, and the transmission belt drives the transmission shaft to drive the two transmission discs to rotate. The transmission between the transmission disc, the fixed shaft, the rocker and the fixed frame drives the movable seat to slide up and down in the guide groove, thereby driving the screen to move back and forth with a large vibration amplitude, effectively screening the fallen sand and gravel aggregates, and improving the screening effect of the machine on the sand and gravel aggregates; then the primary screen is used to screen the coarse sand with the largest particle size onto the screen, and the secondary screen is used to screen the medium sand with medium particle size onto the screen, and finally the fine sand with the smallest particle size falls into the fine sand box for storage, thereby screening the sand and gravel aggregates of different particle sizes into three types: coarse sand, medium sand and fine sand, completing multi-stage screening. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a perspective structural schematic diagram of the utility model;

[0020] Figure 3 is a front view schematic diagram of a vibration component;

[0021] Figure 4 is a schematic side view of a vibration assembly;

[0022] Figure 5 It is a schematic diagram of the structure of the transmission shaft, support plate, servo motor, pulley and transmission belt;

[0023] Figure 6 It is a partial schematic diagram of the utility model.

[0024] In the figure: 1. screening box; 2. guide groove; 3. movable seat; 4. slide groove; 5. slide bar; 6. storage basket; 7. primary screen; 8. secondary screen; 9. fine sand box; 10. guide bucket; 11. transmission shaft; 12. transmission plate; 13. fixed shaft; 14. rocker; 15. rotating shaft; 16. fixed frame; 17. connecting plate; 18. support plate; 19. servo motor; 20. pulley; 21. transmission belt; 22. guide seat; 23. matching seat; 24. mounting shell; 25. rotating motor; 26. rotating rod; 27. grinding block; 28. feed hopper; 29. ​​base; 30. moving wheel; 31. box door; 32. sliding door. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0028] like Figure 3 , Figure 4 as well as Figure 5As shown, it is a structural schematic diagram of the portable sand and gravel aggregate test screening machine in this embodiment. In this embodiment, the test screening machine is used for secondary grinding of crushed sand and gravel aggregate and completing the screening operation of sand and gravel aggregate. The screening machine includes a screening box 1. Two guide grooves 2 are provided on the inner walls of both sides of the screening box 1. Movable seats 3 are slidably installed inside the guide grooves 2. A storage basket 6 is movably arranged between the two movable seats 3. One side outer surface of the screening box 1 is rotatably connected to two transmission shafts 11 through bearings. A transmission disk 12 is fixed at one end of the transmission shaft 11, and the transmission disk 12 is located in the screening box 1. A fixed shaft 13 is fixedly connected to the surface of one side of the transmission disk 12. A rocker 14 is rotatably connected to the surface of the fixed shaft 13 through a bearing. A connecting plate 17 is fixedly connected to the surfaces of the two movable seats 3 close to each other. A fixing frame 16 is provided at the bottom of the connecting plate 17. The interior of the fixing frame 16 is rotatably connected to the rotating shaft 1 through a bearing. 5, and the rotating shaft 15 is fixed to one end of the rocker 14, the surfaces of the two transmission shafts 11 are fixed with pulleys 20, and the surfaces of the two pulleys 20 are sleeved with transmission belts 21, and a support plate 18 is fixedly connected to the outer surface of one side of the screening box 1, and a servo motor 19 is fixedly installed on the top of the support plate 18, and the output end of the servo motor 19 is fixed to one end of one of the transmission shafts 11. When the screen is effectively vibrated, the servo motor 19 provides driving force to the transmission shaft 11, and through the transmission effect of the transmission belt 21, the other transmission shaft 11 is driven to rotate together, so that the two transmission shafts 11 drive the transmission disc 12 to rotate, and utilize the transmission effect between the transmission disc 12, the fixed shaft 13, the rocker 14 and the fixed frame 16 to drive the movable seat 3 to slide up and down in the guide groove 2, thereby driving the screen to reciprocate, with a large vibration amplitude, effectively screening the fallen sand and gravel aggregates, and improving the screening effect of the machine body on the sand and gravel aggregates.

[0029] It is worth noting that the transmission shaft 11, transmission disc 12, fixed shaft 13, rocker 14, rotating shaft 15, fixed frame 16 and connecting plate 17 in this embodiment serve as a vibration component, which is used to drive the screen to vibrate up and down, thereby screening sand and gravel aggregates of different sizes into multiple categories.

[0030] In addition, if Figure 2 and Figure 3As shown, in this embodiment, the surfaces of the two movable seats 3 close to each other are provided with slide grooves 4, the insides of the two slide grooves 4 are slidably installed with slide bars 5, and the slide bars 5 are fixed to the storage basket 6, and the bottoms of the two storage baskets 6 are embedded with a primary screen 7 and a secondary screen 8, the inner bottom wall of the screening box 1 is provided with a fine sand box 9, the secondary screen 8 is located below the primary screen 7, the inner wall of the screening box 1 is provided with a guide bucket 10, and the guide bucket 10 is fixed below the secondary screen 8, and the sand and gravel aggregate After grinding, it falls onto the primary screen 7. The vibration generated by the vibration component drives the primary screen 7 and the secondary screen 8 to reciprocate, so as to effectively screen the sand and gravel aggregates. First, the primary screen 7 is used to screen the coarse sand with the largest particle size onto the screen, and then the secondary screen 8 is used to screen the medium sand with medium particle size onto the screen. Finally, the fine sand with the smallest particle size falls into the fine sand box 9 for storage. In this way, the sand and gravel aggregates of different particle sizes are screened into three types: coarse sand, medium sand and fine sand, and multi-stage screening is completed.

[0031] like Figure 6 As shown, in this embodiment, a guide seat 22 is fixed to the inner wall of the screening box 1, and a matching seat 23 is arranged at the bottom of the guide seat 22. A mounting shell 24 is fixedly connected to the inside of the screening box 1, and the mounting shell 24 is fixed under the matching seat 23. A rotating motor 25 is fixedly installed inside the mounting shell 24. The output end of the rotating motor 25 is rotatably connected to a rotating rod 26 through a bearing, and one end of the rotating rod 26 is fixedly connected to a grinding block 27, and the grinding block 27 matches the matching seat 23. When sand and gravel aggregates are put into the guide seat 22, the rotating motor 25 is started, and the rotating motor 25 provides power for the rotation of the rotating rod 26 and the grinding block 27, and is used together with the matching seat 23 to perform secondary grinding on the introduced sand and gravel aggregates through the rotating grinding block 27.

[0032] like Figure 1 As shown, in this embodiment, a base 29 is provided at the bottom of the screening box 1, a plurality of movable wheels 30 are installed at the bottom of the base 29, a feed hopper 28 is provided through the top of the screening box 1, a box door 31 is provided at the front of the screening box 1 through hinges, and two drawer doors 32 are provided at the front of the box door 31 through hinges.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable sand and gravel aggregate test screening machine, comprising a screening box (1), a feeding hopper (28) is provided through the top of the screening box (1), a box door (31) is provided on the front of the screening box (1) through hinges, and two drawer doors (32) are provided on the front of the box door (31) through hinges, characterized in that: Two guide grooves (2) are provided on the inner walls of both sides of the screening box (1), and movable seats (3) are slidably installed inside the guide grooves (2). A storage basket (6) is movably arranged between the two movable seats (3), and the bottoms of the two storage baskets (6) are embedded with a primary screen (7) and a secondary screen (8). A fine sand box (9) is provided on the inner bottom wall of the screening box (1), and a vibration assembly is provided at the bottoms of the two movable seats (3).

2. A portable sand and gravel aggregate test screening machine according to claim 1, characterized in that: The vibration component comprises a transmission shaft (11), a transmission disc (12), a fixed shaft (13), a rocker (14), a rotating shaft (15), a fixed frame (16) and a connecting plate (17); one side outer surface of the screening box (1) is rotatably connected to two transmission shafts (11) via a bearing; one end of each transmission shaft (11) is fixed with a transmission disc (12), and the transmission disc (12) is located in the screening box (1); one side surface of the transmission disc (12) is fixedly connected to the fixed shaft (13); and the surface of the fixed shaft (13) is rotatably connected to the rocker (14) via a bearing.

3. The portable sand and gravel aggregate testing screening machine according to claim 1 is characterized in that: A connecting plate (17) is fixedly connected to the surfaces of the two movable seats (3) close to each other, and a fixing frame (16) is arranged at the bottom of each connecting plate (17). A rotating shaft (15) is rotatably connected to the inside of the fixing frame (16) via a bearing, and the rotating shaft (15) is fixed to one end of the rocker (14).

4. The portable sand and gravel aggregate testing screening machine according to claim 1, characterized in that: The secondary screen (8) is located below the primary screen (7), and a flow guide hopper (10) is provided on the inner wall of the screening box (1), and the flow guide hopper (10) is fixed below the secondary screen (8).

5. The portable sand and gravel aggregate testing screening machine according to claim 1, characterized in that: The surfaces of the two movable seats (3) close to each other are both provided with slide grooves (4), and slide bars (5) are slidably installed inside the two slide grooves (4), and the slide bars (5) and the storage basket (6) are fixed to each other.

6. The portable sand and gravel aggregate testing screening machine according to claim 2, characterized in that: Pulleys (20) are fixed on the surfaces of the two transmission shafts (11), and transmission belts (21) are sleeved on the surfaces of the two pulleys (20). A support plate (18) is fixedly connected to the outer surface of one side of the screening box (1), and a servo motor (19) is fixedly installed on the top of the support plate (18), and the output end of the servo motor (19) is fixed to one end of one of the transmission shafts (11).

7. The portable sand and gravel aggregate testing screening machine according to claim 1, characterized in that: A guide seat (22) is fixed on the inner wall of the screening box (1), a matching seat (23) is arranged at the bottom of the guide seat (22), a mounting shell (24) is fixedly connected to the inside of the screening box (1), and the mounting shell (24) is fixed under the matching seat (23), a rotating motor (25) is fixedly installed inside the mounting shell (24), an output end of the rotating motor (25) is rotatably connected to a rotating rod (26) through a bearing, one end of the rotating rod (26) is fixedly connected to a grinding block (27), and the grinding block (27) matches the matching seat (23).

8. The portable sand and gravel aggregate testing screening machine according to claim 1, characterized in that: A base (29) is arranged at the bottom of the screening box (1), and a plurality of moving wheels (30) are installed at the bottom of the base (29).

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