Building sand making machine
By setting up a movable screening network and driving mechanism at the bottom of the building sand making machine, the dust and small-grain sand and gravel problems during the sand making process are solved, and efficient screening and quality improvement of sand and gravel are achieved.
Patent Information
- Application Number
- CN202421374859.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-17
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-06-17
AI Technical Summary
The existing sand making machines are prone to dust or too small sand and gravel particles during the sand making process, resulting in a decrease in the quality of sand and gravel and a lack of an effective screening mechanism.
A building sand making machine is designed. By setting up a movable screening net at the bottom and equipped with a driving mechanism, the screening net can move along the inside of the U-shaped frame, thereby achieving effective screening of sand and gravel.
The driving mechanism drives the screening network to move, which can quickly and effectively separate dust and small-grain sand and gravel from qualified sand and gravel, improve the quality of sand and gravel, and the overall structure does not require major changes and is more applicable.
Smart Images
Figure CN222901184U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sand making machines, in particular to a building sand making machine. Background Art
[0002] Sand making machines are suitable for crushing soft or medium-hard and extremely hard ore materials with a hardness not higher than 320 Pa. Sand making machines are widely used in many departments such as large-scale, smelting, building materials, highways, railways, water conservancy, and chemical industries. Sand making machines are further divided into various types such as double-roll sand making machines and vertical sand making machines. During the construction process, a large amount of sand and gravel may be required at the construction site for making concrete. In order to obtain a large amount of sand and gravel, sand making machines may be used to grind large pieces of stone into fine sand and gravel.
[0003] For example, a double-roll sand making machine realizes sand making through two sand making rolls, and then the processed sand and gravel freely fall out from the discharge port. However, since some sand making machines do not have a screening mechanism at the bottom, and some sand making machines are prone to generating more dust or the sand and gravel particles are smaller during sand making, these dust or sand and gravel are mixed in the qualified sand and gravel, which will cause a significant decline in the overall quality of the sand and gravel. Therefore, we propose a building sand making machine. Summary of the Utility Model
[0004] In order to overcome the deficiencies of the prior art, the utility model provides a building sand making machine, which screens the processed sand and gravel by setting a movable screening net, so as to facilitate the separation of small particle sand and gravel or dust from the qualified sand and gravel.
[0005] To solve the above technical problems, the utility model provides the following technical solutions: A building sand making machine includes a sand making machine box body, a feed hopper located at the top of the sand making machine box body, two sand making rolls located inside the sand making machine box body, and four support feet located at the bottom of the sand making machine box body. The bottom end of the sand making machine box body is fixedly connected with an upper connecting flange, and the upper connecting flange is connected to a lower connecting flange through the cooperation of multiple groups of bolts and multiple groups of nuts. A connecting plate is fixedly connected inside the lower connecting flange, and two U-shaped frames are symmetrically and fixedly connected to the bottom of the connecting plate. A screening net is movably arranged inside the two U-shaped frames in total, and the screening net is provided with power by a driving mechanism and thus moves along the two U-shaped frames. The screening net is composed of a fixed frame and a filtering grid fixedly connected inside the fixed frame.
[0006] As a preferred technical solution of the utility model, the driving mechanism includes a fixed frame fixedly connected to one side of the lower connecting flange, a motor fixedly connected to one side of the fixed frame, a driving rod fixedly connected to the output end of the motor, and one end of the driving rod is rotatably connected to a connecting rod. One end of the connecting rod is hinged to a U-shaped block, and one end of the U-shaped block is fixedly connected to one side of the middle part of the screening net.
[0007] As a preferred technical solution of the present utility model, two rollers are symmetrically and fixedly arranged inside each U-shaped frame, and two chutes are symmetrically formed at the bottom of the fixed frame. The two rollers on the same side are in rolling connection with the corresponding chutes.
[0008] As a preferred technical solution of the present utility model, a discharge port is arranged at the bottom of the sand making machine box body, and the contour inside the discharge port is the same as the contour of the notch inside the connecting plate, and the middle part of the screening net is aligned with the lower part of the notch.
[0009] As a preferred technical solution of the present utility model, a collection box is arranged below the screening net, and a conveyor is arranged at the discharge end of the screening net.
[0010] As a preferred technical solution of the present utility model, one of the U-shaped frames is set to be long-shaped, and the other U-shaped frame is set to be short-shaped. By the cooperation of the two U-shaped frames, the screening net is inclined.
[0011] As a preferred technical solution of the present utility model, the width dimension of the screening net is adapted to the width dimension inside each U-shaped frame.
[0012] Compared with the prior art, the beneficial effects that the present utility model can achieve are:
[0013] 1. The driving mechanism drives the screening net to move along the inside of the U-shaped frame, so that the falling sand and gravel move more irregularly. It can not only shake off the dust adhering to the qualified sand and gravel, but also screen faster and better. As a result, the dust or smaller particles of sand and gravel pass through the filter grid, thus completing the screening of sand and gravel. At the same time, the driving mechanism and the screening net are both connected and installed on the sand making machine box body by the upper connecting flange and the lower connecting flange. For the existing sand making machine, the overall structure does not need to be greatly modified, and the applicability of the movable screening net and the driving mechanism can be wider;
[0014] 2. By arranging rollers and chutes, when the screening net moves, the rollers roll along the inside of the chutes, so that the screening net can move more conveniently in the U-shaped frame, avoiding large frictional force and serious wear of the screening net and the U-shaped frame. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a schematic diagram of the internal structure of the present utility model;
[0016] Figure 2 is for the present utility model Figure 1 partial enlarged structural schematic diagram at A in;
[0017] Figure 3 is a schematic diagram of the screening net structure of the present utility model;
[0018] Figure 4 Schematic diagram of the connection between the driving rod and the connecting rod of the present utility model;
[0019] Wherein: 1. Sand making machine box body; 2. Feeding hopper; 3. Sand making roller; 4. Connecting plate; 5. Support feet; 6. Upper connecting flange; 7. Lower connecting flange; 8. U-shaped frame; 9. Screening mesh; 10. Roller; 11. Fixed frame; 12. Motor; 13. Driving rod; 14. Connecting rod; 15. U-shaped block; 16. Fixed frame; 17. Filter grid; 18. Slide groove. Specific embodiments
[0020] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments. However, the following embodiments are only the preferred embodiments of the present utility model, not all of them. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative work belong to the protection scope of the present utility model. The experimental methods in the following embodiments are all conventional methods unless otherwise specified. The materials, reagents, etc. used in the following embodiments can be obtained from commercial channels unless otherwise specified.
[0021] Embodiment:
[0022] Such as Figures 1 - 4As shown in the figure, a building sand making machine includes a sand making machine box body 1, a feed hopper 2 located at the top of the sand making machine box body 1, two sand making rollers 3 located inside the sand making machine box body 1, and four support feet 5 located at the bottom of the sand making machine box body 1. A upper connecting flange 6 is fixedly connected to the bottom end of the sand making machine box body 1. The upper connecting flange 6 is connected to a lower connecting flange 7 through the cooperation of multiple groups of bolts and multiple groups of nuts. A connecting plate 4 is fixedly connected inside the lower connecting flange 7. Two U-shaped frames 8 are symmetrically and fixedly connected to the bottom of the connecting plate 4. A screening mesh 9 is movably arranged inside the two U-shaped frames 8 in total, and the screening mesh 9 is powered by a driving mechanism and thus moves along the two U-shaped frames 8. The screening mesh 9 is composed of a fixed frame 16 and a filter grid 17 fixedly connected inside the fixed frame 16. When using this sand making machine to make sand, raw materials are put into the feed hopper 2. After being processed by the sand making rollers 3, the processed sand and stones continue to fall, and then fall onto the filter grid 17 of the screening mesh 9. At the same time, the driving mechanism drives the screening mesh 9 to move along the inside of the U-shaped frame 8, so that the falling sand and stones move more irregularly. This can not only shake off the dust adhering to the qualified sand and stones, but also screen faster and better, so that the dust or smaller particles of sand and stones pass through the filter grid 17, and the qualified sand and stones continue to move along the screening mesh 9 until reaching the discharge end of the screening mesh 9. At the same time, the driving mechanism and the screening mesh 9 are both installed on the sand making machine box body 1 by relying on the upper connecting flange 6 and the lower connecting flange 7. The upper connecting flange 6 can be connected to the sand making machine box body 1 by welding. For the existing sand making machine, the overall structure does not need to be greatly modified, which can make the applicability of the movable screening mesh 9 and the driving mechanism wider. One of the U-shaped frames 8 is set to be long-shaped, and the other U-shaped frame 8 is set to be short-shaped. Through the cooperation of the two U-shaped frames 8, the screening mesh 9 is inclined. When the screening mesh 9 is inclined, it can facilitate the movement of the sand and stones better, thus avoiding the phenomenon of slow falling of the sand and stones. A collection box is arranged below the screening mesh 9, and a conveyor is arranged at the discharge end of the screening mesh 9. The arranged collection box can collect the smaller particles of sand and stones and their dust, which is convenient for later processing, and the conveyor can convey the qualified sand and stones.
[0023] Two rollers 10 are symmetrically and fixedly arranged inside each U-shaped frame 8. Two sliding grooves 18 are symmetrically opened at the bottom of the fixed frame 16. The two rollers 10 on the same side are in rolling connection with the inside of the corresponding sliding grooves 18. By arranging the rollers 10 and the sliding grooves 18, when the screening mesh 9 moves, the rollers 10 roll along the inside of the sliding grooves 18, so that the screening mesh 9 can move more conveniently inside the U-shaped frame 8, avoiding the generation of large friction and serious wear of the screening mesh 9 and the U-shaped frame 8.
[0024] The driving mechanism includes a fixing frame 11 fixedly connected to one side of the lower connecting flange 7, a motor 12 fixedly connected to one side of the fixing frame 11, a driving rod 13 fixedly connected to the output end of the motor 12, and one end of the driving rod 13 is rotatably connected to a connecting rod 14. One end of the connecting rod 14 is hinged to a U-shaped block 15, and one end of the U-shaped block 15 is fixedly connected to one side of the middle part of the screening mesh 9. When the driving mechanism drives the screening mesh 9 to move, the actual working state of the driving mechanism is that the motor 12 drives the driving rod 13 to rotate. Since the output end of the motor 12 is fixedly connected to the middle part of the driving rod 13, the end of the driving rod 13 makes a circular motion. Since the connecting rod 14 is rotatably connected to the driving rod 13 and the connecting rod 14 is hinged to the U-shaped block 15, the screening mesh 9 will move back and forth under the rotation of the motor 12. By using the screening mesh 9 that moves back and forth, the screening mesh 9 has better screening ability.
[0025] The bottom of the sand making machine box body 1 is provided with a discharge port, and the inner contour of the discharge port is the same as the notch contour inside the connecting plate 4, which is convenient for the processed sand and gravel to all fall into the notch through the discharge port, and the position directly below the notch is aligned with the middle part of the screening mesh 9; it is convenient for the sand and gravel at the notch to all fall onto the screening mesh 9.
[0026] The width dimension of the screening mesh 9 is adapted to the width dimension inside each U-shaped frame 8; it is convenient for the screening mesh 9 to be limited by the U-shaped frame 8, thereby avoiding a large deviation phenomenon of the screening mesh 9.
[0027] In the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower horizontal height than the second feature.
[0028] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.
Claims
1. A construction sand making machine, comprising a sand making machine housing (1), a feed hopper (2) located at the top of the sand making machine housing (1), two sand making rollers (3) located inside the sand making machine housing (1), and four supporting legs (5) located at the bottom of the sand making machine housing (1), characterized in that: The bottom end of the sand making machine housing (1) is fixedly connected to an upper connecting flange (6), and the upper connecting flange (6) is connected to a lower connecting flange (7) by means of a plurality of sets of bolts and a plurality of sets of nuts. The interior of the lower connecting flange (7) is fixedly connected to a connecting plate (4), and the bottom of the connecting plate (4) is symmetrically fixedly connected to two U-shaped frames (8). A screening net (9) is movably arranged inside the two U-shaped frames (8), and the screening net (9) is powered by a driving mechanism so as to move along the two U-shaped frames (8). The screening net (9) is composed of a fixed frame (16) and a filtering grid (17) fixedly connected to the interior of the fixed frame (16).
2. A construction sand making machine according to claim 1, characterized in that: The driving mechanism comprises a fixing frame (11) fixedly connected to one side of the lower connecting flange (7), a motor (12) fixedly connected to one side of the fixing frame (11), and a driving rod (13) fixedly connected to an output end of the motor (12), one end of the driving rod (13) being rotatably connected to a connecting rod (14), one end of the connecting rod (14) being hinged to a U-shaped block (15), and one end of the U-shaped block (15) being fixedly connected to one side of the middle of the screening net (9).
3. A construction sand making machine according to claim 1 or 2, characterized in that: Two rollers (10) are symmetrically fixed inside each U-shaped frame (8), and two slide grooves (18) are symmetrically opened at the bottom of the fixed frame (16). The two rollers (10) on the same side are rollingly connected to the inside of the corresponding slide groove (18).
4. A construction sand making machine according to claim 1, characterized in that: The bottom of the sand making machine housing (1) is provided with a discharge port, and the inner contour of the discharge port is the same as the inner contour of the notch of the connecting plate (4), and the bottom of the notch is aligned with the middle of the screening net (9).
5. A construction sand making machine according to claim 4, characterized in that: A collecting box is arranged below the screening net (9), and a conveyor is arranged at the discharge end of the screening net (9).
6. A construction sand making machine according to claim 1, characterized in that: One of the U-shaped frames (8) is arranged in a long shape, and the other U-shaped frame (8) is arranged in a short shape. The two U-shaped frames (8) cooperate to allow the screening net (9) to be arranged in an inclined manner.
7. A construction sand making machine according to claim 4, characterized in that: The width of the screening net (9) is adapted to the width of the interior of each U-shaped frame (8).