Screening device for crushing building gravel aggregate
By designing a screening device for crushing construction sand and gravel aggregates with gear system and reciprocating mechanism, the problem of insufficient screening caused by the fixed screen in the prior art is solved, and the full screening and quality improvement of sand and gravel aggregates are achieved.
Patent Information
- Application Number
- CN202421301694.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-07
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-06-07
AI Technical Summary
In the existing multi-stage screening device for crushing sand and gravel aggregates in construction, the screen mesh is fixed, resulting in the sand and gravel aggregates being screened only from the falling position and cannot be fully screened.
A screening device for crushing construction sand and gravel aggregates is designed. The first motor drives the reciprocating movement of the rotating shaft, gear system, connecting rod and fixing seat, so that the screening frame and screen mesh reciprocating on the surface of the fixing frame, thereby fully screening the sand and gravel aggregates.
The sufficient screening of sand and gravel aggregates has been achieved, the screening quality has been improved, and the problem of insufficient screening in the prior art has been solved.
Smart Images
Figure CN222817002U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of construction engineering, in particular to a screening device for crushing construction sand and gravel aggregates. Background Art
[0002] Sand and gravel aggregates are granular loose materials that act as a skeleton or filler in concrete. Aggregates, as the main raw material in concrete, play a vital role in construction. Aggregates are divided into different types according to their particle size: aggregates with a particle size ≥4.75mm are called coarse aggregates, which are usually crushed stone and pebbles. Crushed stone is made by mechanical crushing and screening of natural rocks; particles below 4.75mm are called fine aggregates, commonly known as sand. Sand is divided into natural sand and artificial sand according to its source. The amount of natural sand is limited and it is difficult to salvage. In addition, the texture of large-particle aggregates such as stones mixed in it is uneven, and its texture is not as high as that of artificial sand. Therefore, natural sand needs to be screened when used as a building aggregate in concrete.
[0003] A crushing and multi-stage screening device for building sand and gravel aggregates is disclosed in Chinese patent announcement number CN109382165A, which includes a screening box and a driving box located at the lower end of the screening box, a first crank mechanism is provided in the middle of the left end of the driving shaft, a first connecting rod is installed at the upper end of the first crank mechanism, and a vibration plate is connected to the upper end of the first connecting rod, a third crank mechanism is installed in the middle of the right end of the driving shaft, a third connecting rod is installed at the upper end of the third crank mechanism, and the upper end of the third connecting rod passes through the vibration plate and is connected to the first screening plate, a second crank mechanism is connected in the middle of the driving shaft, a second connecting rod is connected at the upper end of the second crank mechanism, and the upper end of the second connecting rod passes through the vibration plate and the first screening plate and is connected to the second screening plate, a rotating shaft is installed in the middle of the upper end of the fixed plate, a worm wheel is installed in the middle of the rotating shaft, a worm is meshed at the front end of the worm wheel, and driven shafts are connected to both ends of the worm, and a crushing frame is installed at the upper end of the rotating shaft. The present invention realizes the multi-stage screening of building sand and gravel aggregates and further improves the screening quality.
[0004] When the above prior art is in use, the screen is fixed, so the sand and gravel aggregates can only be screened from the falling position during screening. This screening method is relatively simple and cannot achieve the purpose of sufficient screening. Utility Model Content
[0005] The utility model aims to provide a screening device for crushing building sand and gravel aggregates to solve the problems raised by the above-mentioned background technology.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] A screening device for crushing building sand and gravel aggregates comprises a fixed frame and a screening frame, the fixed frame surface is respectively provided with a material leakage port and two slide grooves, the inner side of the slide groove is fixedly connected with a slide rod, the bottom of the screening frame is fixedly connected with a wire seat, the surface of the fixed frame is fixedly connected with a fixed frame, one side of the fixed frame is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a rotating shaft, the surface of the rotating shaft is fixedly connected with two vertical bevel gears, the surface of the vertical bevel gear is meshingly connected with a transverse bevel gear, the center position of the transverse bevel gear is fixedly connected with a rotating rod, the top of the rotating rod is fixedly connected with a turntable, the surface of the turntable is fixedly connected with a connecting piece, the surface of the connecting piece is fixedly connected with a connecting rod, one side of the screening frame is fixedly connected with two fixed seats, and the connecting rod is rotatably connected to the fixed seat through a pin.
[0008] Preferably, the inner wall of the wire seat is slidably connected to the surface of the slide rod, and the bottom of the screening frame is slidably connected to the surface of the fixing frame.
[0009] Preferably, one end of the rotating shaft is rotatably connected to the inner side of the fixed frame, and the surface of the rotating rod is rotatably connected to the top of the fixed frame.
[0010] Preferably, placement grooves are respectively provided on both sides of the screening frame, a screen is arranged inside the placement groove, two second fixed blocks are respectively fixedly connected on both sides of the screen, second fixing holes are provided on the surface of the second fixed blocks, four first fixed blocks are respectively fixedly connected on both sides of the screening frame, first fixing holes are provided on the surface of the first fixed blocks, and the first fixing holes are adapted to the second fixing holes in size.
[0011] Preferably, a second discharge hopper is fixedly connected to the bottom of the leakage port, a recovery frame is fixedly connected to the bottom of the second discharge hopper, a second motor is fixedly connected to one end of the recovery frame, and a spiral conveying rod is fixedly connected to the output end of the second motor.
[0012] Preferably, two support rods are fixedly connected to the top of the fixed frame, a connecting plate is fixedly connected to the top of the support rods, a crushing box is fixedly connected between the two connecting plates, a first discharge hopper is fixedly connected to the bottom of the crushing box, and a feed port is provided at the top of the crushing box.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] When the utility model is in use, the first motor drives the rotating shaft to rotate, and the rotation of the rotating shaft drives the two vertical bevel gears to rotate. The rotation of the vertical bevel gear will drive the horizontal bevel gear to rotate, and the rotation of the horizontal bevel gear will drive the rotating rod to rotate. The rotation of the rotating rod will drive the rotating plate to rotate. The rotation of the rotating plate will drive the connecting rod to reciprocate. The reciprocating motion of the connecting rod will drive the reciprocating motion of the fixed seat. The reciprocating motion of the fixed seat drives the wire seat at the bottom of the screening frame to reciprocate on the surface of the sliding rod, so that the screening frame reciprocates on the surface of the fixed frame. The reciprocating motion of the screening frame drives the screen to reciprocate, so as to screen the sand and gravel aggregates that fall into the screening frame through the first discharge hopper, thereby solving the problem that the sand and gravel aggregates cannot be fully screened. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 The overall structure of the utility model is shown in FIG. Figure 1 ;
[0016] Figure 2 The overall structure of the utility model is shown in FIG. Figure 2 ;
[0017] Figure 3 This is a schematic diagram of the connection structure of the screening frame and the screen mesh of the utility model;
[0018] Figure 4 This is a schematic diagram of the screening frame structure of the utility model;
[0019] Figure 5 This is a schematic diagram of the screen structure of the utility model
[0020] Figure 6 For this utility model Figure 1 A magnified view of the structure at center;
[0021] Figure 7 For this utility model Figure 1 A magnified view of the structure at B in the middle;
[0022] Figure 8 This is a side view of the fixed frame structure of the utility model;
[0023] Fig. 9 This is a front section of the fixed frame structure of the utility model Figure 1 ;
[0024] Fig.10 This is a front section of the fixed frame structure of the utility model Figure 2 .
[0025] In the figure: 1. fixed frame; 2. support rod; 3. connecting plate; 4. crushing box; 5. feed inlet; 6. first discharge hopper; 7. screening frame; 8. screen; 9. leakage port; 10. slide; 11. fixed frame; 12. first motor; 13. fixed seat; 14. connecting rod; 15. second discharge hopper; 16. second motor; 17. recovery frame; 18. spiral transmission rod; 19. wire seat; 20. slide rod; 21. rotating shaft; 22. vertical bevel gear; 23. horizontal bevel gear; 24. rotating rod; 25. connecting piece; 26. turntable; 27. placement slot; 28. first fixed block; 29. first fixed hole; 30. second fixed block; 31. second fixed 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] See also Figure 1-10The utility model provides a technical solution: a screening device for crushing building sand and gravel aggregates, a fixed frame 1 and a screening frame 7, the bottom of the screening frame 7 is slidably connected to the surface of the fixed frame 1, and the surface of the fixed frame 1 is respectively provided with a leakage port 9 and two slide grooves 10, the inner side of the slide groove 10 is fixedly connected with a slide rod 20, the bottom of the screening frame 7 is fixedly connected with a wire seat 19, the inner wall of the wire seat 19 is slidably connected to the surface of the slide rod 20, the surface of the fixed frame 1 is fixedly connected with a fixed frame 11, one side of the fixed frame 11 is fixedly connected with a first motor 12, the output end of the first motor 12 is fixedly connected with a rotating shaft 21, one end of the rotating shaft 21 is rotatably connected to the inner side of the fixed frame 11, the surface of the rotating shaft 21 is fixedly connected with two vertical bevel gears 22, the surface of the vertical bevel gear 22 is meshed with a transverse bevel gear 23, a rotating rod 24 is fixedly connected at the center position of the transverse bevel gear 23, the surface of the rotating rod 24 is rotatably connected to the top of the fixed frame 11, and the rotating rod A turntable 26 is fixedly connected to the top of 24, a connecting piece 25 is fixedly connected to the surface of the turntable 26, a connecting rod 14 is fixedly connected to the surface of the connecting piece 25, two fixed seats 13 are fixedly connected to one side of the screening frame 7, the connecting rod 14 is rotatably connected to the fixed seat 13 through a pin shaft, the first motor 12 is started, the first motor 12 drives the rotating shaft 21 to rotate, the rotation of the rotating shaft 21 drives the two vertical bevel gears 22 to rotate, the rotation of the vertical bevel gears 22 will drive the horizontal bevel gears 23 to rotate, the rotation of the horizontal bevel gears 23 will drive the rotating rod 24 to rotate, the rotation of the rotating rod 24 will drive the turntable 26 to rotate, the rotation of the turntable 26 will drive the connecting rod 14 to reciprocate, the reciprocating motion of the connecting rod 14 will drive the fixed seat 13 to reciprocate, the reciprocating motion of the fixed seat 13 drives the wire seat 19 at the bottom of the screening frame 7 to reciprocate on the surface of the sliding rod 20, so that the screening frame 7 reciprocates on the surface of the fixed frame 1, so as to screen the sand and gravel aggregates.
[0028] like Figure 3 , Figure 4 and Figure 5 As shown, placement slots 27 are respectively provided on both sides of the screening frame 7, and a screen 8 is arranged inside the placement slots 27. Two second fixing blocks 30 are respectively fixedly connected on both sides of the screen 8, and second fixing holes 31 are provided on the surfaces of the second fixing blocks 30. Four first fixing blocks 28 are respectively fixedly connected on both sides of the screening frame 7, and first fixing holes 29 are provided on the surfaces of the first fixing blocks 28. The first fixing holes 29 and the second fixing holes 31 are matched in size. The screen 8 is inserted into the placement slots 27 to align the second fixing holes 31 with the first fixing holes 29, and then the second fixing holes 31 and the first fixing holes 29 are tightened by bolts to fix the screen 8 in the screening frame 7.
[0029] like Figure 1 and Fig.10As shown, a second discharge hopper 15 is fixedly connected to the bottom of the leakage port 9, a recovery frame 17 is fixedly connected to the bottom of the second discharge hopper 15, a second motor 16 is fixedly connected to one end of the recovery frame 17, and a spiral conveying rod 18 is fixedly connected to the output end of the second motor 16. The screened sand and gravel aggregates fall into the second discharge hopper 15 through the leakage port 9, and then fall into the recovery frame 17 through the second discharge hopper 15. The second motor 16 on one side of the recovery frame 17 can drive the spiral conveying rod 18 to rotate, and the rotation of the spiral conveying rod 18 can convey the sand and gravel aggregates falling on its surface, thereby facilitating entry into the next process.
[0030] like Figure 1 and Figure 2 As shown, two support rods 2 are fixedly connected to the top of the fixed frame 1, a connecting plate 3 is fixedly connected to the top of the support rod 2, a crushing box 4 is fixedly connected between the two connecting plates 3, a first discharge hopper 6 is fixedly connected to the bottom of the crushing box 4, and a feed port 5 is provided on the top of the crushing box 4. Sand and gravel aggregates to be crushed are poured into the crushing box 4 through the feed port 5, and then after being crushed by the crushing box 4, they fall into the screening frame 7 through the first discharge hopper 6 for screening.
[0031] Working principle: When in use, first turn on the first motor 12 and the second motor 16, then pour the sand and gravel aggregates to be crushed into the crushing box 4 through the feed inlet 5, and then after being crushed by the crushing box 4, they fall into the screening frame 7 through the first discharge hopper 6;
[0032] Since the first motor 12 is in the starting state, the first motor 12 drives the rotating shaft 21 to rotate, and the rotation of the rotating shaft 21 drives the two vertical bevel gears 22 to rotate, and the rotation of the vertical bevel gear 22 will drive the horizontal bevel gear 23 to rotate, and the rotation of the horizontal bevel gear 23 will drive the rotating rod 24 to rotate, and the rotation of the rotating rod 24 will drive the rotating disk 26 to rotate, and the rotation of the rotating disk 26 will drive the connecting rod 14 to reciprocate, and the reciprocating motion of the connecting rod 14 will drive the fixed seat 13 to reciprocate, and the reciprocating motion of the fixed seat 13 drives the wire seat 19 at the bottom of the screening frame 7 to reciprocate on the surface of the sliding rod 20, so that the screening frame 7 reciprocates on the surface of the fixed frame 1, and the reciprocating motion of the screening frame 7 drives the screen 8 to reciprocate, so as to screen the sand and gravel aggregates that fall into the screening frame 7 through the first discharge hopper 6;
[0033] The screened sand and gravel aggregates enter the second discharge hopper 15 through the material leakage port 9, and then fall into the recovery frame 17 through the second discharge hopper 15. The second motor 16 on one side of the recovery frame 17 can drive the spiral conveying rod 18 to rotate. The rotation of the spiral conveying rod 18 can convey the sand and gravel aggregates falling on its surface, so as to facilitate entering the next process.
[0034] After the screening is completed, the screen 8 is taken out of the screening frame 7 by unscrewing the bolts. When taking it out, the upper side of the through groove 27 can scrape off the sand and gravel aggregates remaining on the surface of the screen 8, and then fall into the recovery frame 17 for recycling, reducing waste. At the same time, the screen 8 can also be replaced by this method.
[0035] Through the above operation, the screening frame can move back and forth, thereby achieving sufficient screening of sand and gravel aggregates.
[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, material or apparatus including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, material or apparatus.
[0037] 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 screening device for crushing building sand and gravel aggregates, comprising a fixing frame (1) and a screening frame (7), characterized in that: The surface of the fixed frame (1) is respectively provided with a material leakage port (9) and two slide grooves (10); the inner side of the slide groove (10) is fixedly connected with a slide rod (20); the bottom of the screening frame (7) is fixedly connected with a wire seat (19); the surface of the fixed frame (1) is fixedly connected with a fixed frame (11); one side of the fixed frame (11) is fixedly connected with a first motor (12); the output end of the first motor (12) is fixedly connected with a rotating shaft (21); the surface of the rotating shaft (21) is fixedly connected with two vertical bevel gears (22); The surface of the vertical bevel gear (22) is meshingly connected with a transverse bevel gear (23); a rotating rod (24) is fixedly connected to the center of the transverse bevel gear (23); a rotating disk (26) is fixedly connected to the top of the rotating rod (24); a connecting piece (25) is fixedly connected to the surface of the rotating disk (26); a connecting piece (25) is fixedly connected to the surface of the connecting piece (25); a connecting rod (14) is fixedly connected to one side of the screening frame (7) with two fixing seats (13); and the connecting rod (14) is rotatably connected to the fixing seat (13) via a pin.
2. A screening device for crushing construction sand and gravel aggregates according to claim 1, characterized in that: The inner wall of the wire seat (19) is slidably connected to the surface of the slide rod (20), and the bottom of the screening frame (7) is slidably connected to the surface of the fixing frame (1).
3. A screening device for crushing construction sand and gravel aggregate according to claim 1, characterized in that: One end of the rotating shaft (21) is rotatably connected to the inner side of the fixed frame (11), and the surface of the rotating rod (24) is rotatably connected to the top of the fixed frame (11).
4. A screening device for crushing construction sand and gravel aggregate according to claim 1, characterized in that: The screening frame (7) is provided with placement slots (27) on both sides, a screen (8) is arranged inside the placement slots (27), two second fixing blocks (30) are fixedly connected to both sides of the screen (8), and second fixing holes (31) are provided on the surfaces of the second fixing blocks (30), and four first fixing blocks (28) are fixedly connected to both sides of the screening frame (7), and first fixing holes (29) are provided on the surfaces of the first fixing blocks (28), and the first fixing holes (29) and the second fixing holes (31) are matched in size.
5. A screening device for crushing construction sand and gravel aggregates according to claim 4, characterized in that: A second discharge hopper (15) is fixedly connected to the bottom of the leakage port (9), a recovery frame (17) is fixedly connected to the bottom of the second discharge hopper (15), a second motor (16) is fixedly connected to one end of the recovery frame (17), and a spiral conveying rod (18) is fixedly connected to the output end of the second motor (16).
6. A screening device for crushing construction sand and gravel aggregates according to claim 1, characterized in that: Two support rods (2) are fixedly connected to the top of the fixed frame (1), a connecting plate (3) is fixedly connected to the top of the support rod (2), a crushing box (4) is fixedly connected between the two connecting plates (3), a first discharge hopper (6) is fixedly connected to the bottom of the crushing box (4), and a feed port (5) is provided at the top of the crushing box (4).