A crushing device for quartz sand production with screening structure
The quartz sand crushing device, which uses a motor-driven vibrating screen plate and a through-hole frame design, solves the problems of production gaps and blockages in existing technologies, realizes continuous crushing and screening of quartz sand, and improves processing efficiency and equipment economy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN YONGFENG NEW MATERIAL TECH CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-07-21
AI Technical Summary
Existing quartz sand crushing equipment requires stopping the first crushing operation during the secondary crushing process, resulting in production gaps, insufficient screening accuracy, easy clogging, and affecting processing efficiency and quality.
A crushing device for quartz sand production with a screening structure was designed. By cooperating with the motor-driven screen plate vibration and the through-hole frame, screening and crushing can be carried out continuously, avoiding clogging and improving screening efficiency and equipment service life.
It enables continuous crushing and screening of quartz sand, avoids production gaps, improves processing efficiency and quality, extends the service life of screens, and reduces energy consumption.
Smart Images
Figure CN224524949U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of quartz sand crushing and screening technology, specifically a crushing device for quartz sand production with a screening structure. Background Technology
[0002] Quartz sand is quartz particles produced by crushing quartz stone. Quartz stone is a non-metallic mineral, a hard, wear-resistant, and chemically stable silicate mineral. Quartz sand is an important industrial mineral raw material, a non-hazardous chemical, and is widely used in glass, casting, ceramics and fireproof materials, ferrosilicon smelting, metallurgical flux, metallurgy, construction, chemical, plastics, rubber, abrasives, filter media, and other industries. Crushing is necessary during the processing of quartz sand. Chinese Patent No. CN202420335520.7 discloses a quartz sand crushing and screening device, including a first crushing box. The upper surface of the first crushing box has a feed inlet communicating with its interior. A second crushing box is fixedly connected to the left side surface of the first crushing box. Two positioning shafts are rotatably connected to the inner walls of the front and rear sides of both the first and second crushing boxes. A re-crushing mechanism is provided on the first crushing box. In this quartz sand crushing and screening device, when the sliding rod moves to the left, it simultaneously drives the baffle to move out of the connecting groove. At this time, the pusher pushes the quartz sand on the screening screen to the right, thereby pushing the larger quartz sand particles into the second crushing box through the connecting groove. Then, it undergoes secondary crushing by the crushing rollers in the second crushing box, resulting in a better crushing effect for the quartz sand. The secondary crushing process does not require manual operation, saving manpower while improving the crushing efficiency and quality of quartz sand, thus increasing the practicality of the device.
[0003] Based on the above, the inventors have discovered the following problems: The above-mentioned device can crush quartz sand twice, resulting in better crushing effect. The secondary crushing process does not require manual operation, saving manpower while improving the crushing efficiency and quality of quartz sand, thereby increasing the practicality of the device. However, it neglects the process of using a pusher plate to push the quartz blocks on the screening screen into the second crushing box, which requires stopping the crushing operation in the first crushing box, creating a production gap, thus affecting the processing efficiency of quartz sand. Furthermore, the accumulation of quartz blocks at the top of the screening screen can cause blockage, resulting in inaccurate screening of quartz blocks. Utility Model Content
[0004] To achieve the above objectives, this utility model provides the following technical solution: a crushing device for quartz sand production with a screening structure, comprising a support base and a support frame. The support base has a support frame on one side, and the support frame has an operating box on one side of its upper end. The operating box has a feeding port at its upper end. A pair of connecting plates are provided on one side of the operating box and at the upper end of the support frame. A pair of crushing rollers are provided at the upper end of the operating box. A pair of motors are provided at the upper end of the support base. A drive shaft is provided at the output end of the motors. The end of the drive shaft away from the motor passes through the side wall of the operating box and is connected to the crushing rollers. A drive belt assembly is provided on the drive shaft. The other end of the drive belt assembly is connected to a connecting shaft. The connecting shaft extends into the operating box and has a large eccentric component. The large eccentric component is connected to a connecting shaft, and the connecting shaft is connected to a small eccentric component.
[0005] Furthermore, a through-hole frame is provided above the support frame, and a movable plate is provided at one end of the through-hole frame. The two ends of the movable plate are movably mounted on the side wall of the operating box. The movable plate is vertically aligned with the small eccentric component. A rotating shaft is provided at the end of the through-hole frame away from the movable plate. The two ends of the rotating shaft are movably mounted on the upper end of the support frame. A screen plate is provided above the through-hole frame. One end of the screen plate is movably mounted on the inner wall of the operating box. The other end of the screen plate is also provided with a rotating shaft. The two ends of the rotating shaft are respectively movably mounted on a pair of connecting plates. A push plate is provided at the lower end of the screen plate. The push plate is vertically aligned with the large eccentric component. The axes of the connecting shaft and the connecting shaft are located on the same horizontal line.
[0006] Furthermore, the lower end of the support frame is provided with a second feeding box, the side of the support frame away from the support base is provided with a first feeding box, and the upper end of the support frame is provided with a guide plate facing the first feeding box, the guide plate extending into the first feeding box.
[0007] Furthermore, both the screen plate and the through-hole frame are inclined, and the screen plate and the through-hole frame are arranged parallel to each other.
[0008] Furthermore, grooves are respectively provided on the inner wall of the operating box for the movable plate and the screen plate to move.
[0009] Furthermore, the upper end of the through-hole frame is uniformly provided with a number of through-hole columns, and the sieve holes are uniformly provided with a number of sieve holes, the positions of the sieve holes and the through-hole columns are corresponding.
[0010] Furthermore, the transmission belt assembly includes a driving pulley, a driven pulley, and an annular belt. The driving pulley is located on the transmission shaft, the driven pulley is located on the connecting shaft, and the driving pulley and the driven pulley are connected by the annular belt.
[0011] Furthermore, the end of the connecting shaft away from the large eccentric component is movably located on the side of the support base, and the connecting shaft is also movably connected to the side wall of the operating box.
[0012] Compared with the prior art, the beneficial effects of this utility model are: the crushing device for quartz sand production with a screening structure is reasonable and has the following advantages: (1) Through the design of motor, screen plate, transmission belt assembly, connecting shaft and large eccentric part, the start of motor can drive one end of screen plate to move up and down, so that the quartz sand with a size larger than the screen hole at the top of the screen plate can be shaken into the first feeding box, and the quartz sand with a size smaller than the screen hole can fall into the second feeding box, thus achieving the effect of screening the crushed quartz sand. The vibration of the screen plate can not only effectively screen, but also avoid the accumulation of quartz sand at the top of the screen plate. If too much quartz sand accumulates at the top of the screen plate, it will increase the resistance of screening and may cause the screen to be blocked, thus affecting the screening efficiency and effect. The vibration of the screen plate driven by the motor can keep the screen clean and ensure the stability of the screening effect. In addition, this vibration mechanism can reduce the adhesion between quartz sand particles, enhance the dispersion between particles, and further optimize the screening effect. After long-term use, the vibration of the screen plate can also effectively reduce the wear on the screen plate and extend the service life of the screen plate, thereby improving the economy of the equipment. (2) Through the design of small eccentric parts, through hole frame and movable plate, the rotation of the connecting shaft can also allow the through hole column to pass into the screen hole, which helps to remove the blockage in the screen hole, prevent the screen plate from being blocked by the accumulated quartz sand, and thus ensure that the screening process can continue without being affected by the blockage. The quartz sand particles accumulated at the screen hole opening may affect the normal operation of the screen hole, resulting in reduced screening efficiency or even damage to the screen plate. The continuous pushing action of the through hole column can effectively solve this problem, ensuring that the screen remains unobstructed, and the crushing and screening of quartz sand can be carried out continuously, thereby eliminating any downtime or delay in the production process and improving the overall processing efficiency. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a side view of the present invention. Figure 3 This is a schematic diagram of part of the structure of this utility model; Figure 4 This is a partially exploded structural diagram of the present invention; Figure 5 This utility model Figure 3 Enlarged diagram of point A in the middle.
[0014] In the diagram: 1. Support base; 2. Motor; 3. Crushing roller; 4. Feeding port; 5. Support frame; 6. Feeding box one; 7. Guide plate; 8. Feeding box two; 9. Connecting plate; 10. Operating box; 11. Transmission belt assembly; 12. Connecting shaft; 13. Through hole frame; 14. Screen plate; 15. Screen hole; 16. Through hole column; 17. Large eccentric component; 18. Small eccentric component; 19. Connecting shaft; 20. Movable plate; 21. Push plate. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0016] Please see Figure 1-5 The present invention provides a technical solution as follows: Example: In this embodiment, a crushing device for producing quartz sand with a screening structure includes a support base 1 and a support frame 5. The support base 1 has a support frame 5 on one side, and the support frame 5 has an operating box 10 on one side of its upper end. The operating box 10 has a feeding port 4 on its upper end. A pair of connecting plates 9 are provided on one side of the operating box 10 and on the upper end of the support frame 5. A pair of crushing rollers 3 are provided inside the upper end of the operating box 10. A pair of motors 2 are provided on the upper end of the support base 1. The output end of the motors 2 is provided with a drive shaft. The end of the drive shaft away from the motors 2 passes through the side wall of the operating box 10 and is connected to the crushing rollers 3. A drive belt assembly 11 is provided on the drive shaft. The other end of the drive belt assembly 11 is connected to a connecting shaft 12. The connecting shaft 12 extends into the operating box 10 and is provided with a large eccentric part 17. The large eccentric part 17 is connected to a connecting shaft 19. The connecting shaft 19 is connected to a small eccentric part 18.
[0017] The support frame 5 is equipped with a through-hole frame 13 above it. One end of the through-hole frame 13 is equipped with a movable plate 20. Both ends of the movable plate 20 are movably mounted on the side wall of the operating box 10. The movable plate 20 is vertically aligned with the small eccentric component 18. The end of the through-hole frame 13 away from the movable plate 20 is equipped with a rotating shaft. Both ends of the rotating shaft are movably mounted on the upper end of the support frame 5. A screen plate 14 is equipped above the through-hole frame 13. One end of the screen plate 14 is movably mounted on the inner wall of the operating box 10. The other end of the screen plate 14 is also equipped with a rotating shaft. Both ends of the rotating shaft are movably mounted on a pair of connecting plates 9. The lower end of the screen plate 14 is equipped with a push plate 21. The push plate 21 is vertically aligned with the large eccentric component 17. The axes of the connecting shaft 12 and the connecting shaft 19 are located on the same horizontal line.
[0018] The support frame 5 has a second feeding box 8 at its lower end, a first feeding box 6 on the side of the support frame 5 away from the support base 1, and a guide plate 7 on the upper end of the support frame 5 facing the first feeding box 6, with the guide plate 7 extending into the first feeding box 6. The aforementioned feed box 2 8 is used to collect the quartz sand that has been screened by the screen plate 14, and the aforementioned feed box 1 6 collects quartz sand with a size larger than the screen hole 15. The guide plate can guide the quartz sand into the feed box 1 6.
[0019] The screen plate 14 and the through hole frame 13 are both inclined and are parallel to each other. Due to the inclined design of the screen plate 14, the quartz sand blocks falling onto the upper part of the screen plate 14 can smoothly fall into the feed box 2 8 under the influence of gravity and the shaking of the screen plate 14. A second crushing mechanism can be set at the lower end of the feed box 2 8 to achieve further crushing operations. With the screen plate 14 and the through hole frame 13 arranged parallel to each other, when the through hole frame 13 and the screen plate 14 are pushed, the through hole frame 13 and the screen plate 14 can be driven to move closer to each other or further away from each other.
[0020] The inner wall of the operating box 10 is provided with grooves for the movable plate 20 and the screen plate 14 to move. By providing grooves on the operating box 10 for the movable plate 20 and the screen plate 14 to move, the movement of the movable plate 20 and the screen plate 14 can be made more stable and smooth.
[0021] The through-hole frame 13 is uniformly provided with a plurality of through-hole columns 16 at its upper end, and the sieve holes 15 are uniformly provided with a plurality of sieve holes 15, the sieve holes 15 and the through-hole columns 16 are positioned corresponding to each other. Through the design of the through-hole column 16 and the sieve hole 15, the through-hole column 16 can be inserted into the sieve hole 15. When the sieve hole 15 is blocked, the through-hole column 16 can be used to clear the sieve hole 15, thereby avoiding the blockage of the sieve hole 15. This not only maintains the continuous screening effect of the sieve hole 15, but also extends the service life of the sieve hole 15.
[0022] The transmission belt assembly 11 includes a driving pulley, a driven pulley, and an annular belt. The driving pulley is located on the transmission shaft, the driven pulley is located on the connecting shaft 12, and the driving pulley and the driven pulley are connected by the annular belt. The aforementioned transmission belt assembly 11, as shown Figure 3 As shown, the specific connection relationships are existing technologies and will not be elaborated here; By designing the transmission belt assembly 11, the starting motor 2 rotates, which drives the transmission shaft to rotate, thereby driving the drive wheel to rotate. Under the action of the annular belt, the driven wheel rotates, which in turn drives the connecting shaft 12 to rotate, thus realizing power transmission. This allows the motor 2 to provide power to the crushing roller 3 while also providing rotational power to the connecting shaft 12. This maximizes the use of the power mechanism, eliminating the need for other power mechanisms, reducing the loss of power resources, and achieving environmentally friendly operation.
[0023] The end of the connecting shaft 12 away from the large eccentric part 17 is movably disposed on the side of the support base 1, and the connecting shaft 12 is also movably connected to the side wall of the operating box 10. The design of the connecting shaft 12 being movably connected to the support base 1 and the operating box 10 allows the connecting shaft 12 to rotate smoothly.
[0024] Working principle: When using this device, a pair of motors 2 are started to drive a pair of crushing rollers 3 to rotate. Quartz stone is then poured in from the feed inlet 4. Under the action of the crushing rollers 3, the quartz stone can be crushed. Quartz sand mixtures of different sizes fall onto the upper end of the screen plate 14. Due to the start of motor 2, the drive shaft rotates, which drives the drive belt assembly 11 to operate, thereby driving the connecting shaft 12 to rotate in the same direction. This causes the large eccentric part 17 at the lower end of the screen plate 14 to rotate around the axis of the connecting shaft 12. Since the large eccentric part 17 is designed as an eccentric wheel, when the large eccentric part 17 rotates to contact the lower end of the push plate 21, it can push the push plate 21. 1. When the large eccentric component 17 rotates away from the push plate 21, the push plate 21 falls back under its own weight. This causes the motor 2 to start, moving one end of the screen plate 14 up and down. This allows the quartz sand with a size larger than the screen hole 15 at the top of the screen plate 14 to be shaken into the first feed box 6, while the quartz sand with a size smaller than the screen hole 15 falls into the second feed box 8. The shaking of the screen plate 14 also prevents quartz sand from accumulating at the top, thus affecting the screening effect. Furthermore, the design of the small eccentric component 18 and the through-hole frame 13 ensures that when the end of the large eccentric component 17 is away from the connecting shaft 12... When the connecting shaft 12 is below, the end point of the small eccentric part 18 furthest from the connecting shaft 19 is positioned above and pushes the movable plate 20 upward, causing the through-hole frame 13 to move upward, allowing the through-hole column 16 to penetrate into the sieve hole 15. This pushes away the quartz sand blocking the sieve hole 15 and the quartz sand accumulated above the sieve hole 15, thus preventing clogging of the sieve hole 15 and allowing the screen plate 14 to perform continuous high-quality screening operations, maintaining the high standard of quartz sand processing quality. Furthermore, when the end point of the large eccentric part 17 furthest from the connecting shaft 12 is positioned above, the end point of the small eccentric part 18 furthest from the connecting shaft 19 is positioned below. At this time, the through-hole frame 13 returns to its initial position under its own gravity, moving away from the screen plate 14. This does not hinder the screening of quartz sand by the screen plate 14. Through the above design, the screen plate 14 continuously vibrates, and at the same time, the through-hole frame 13 drives the through-hole column 16 to continuously move through the screen hole 15. This can achieve screening of quartz sand while avoiding clogging of the screen hole 15, ensuring the continuous high-quality operation of the device for crushing and screening quartz sand. The crushing and screening of quartz sand are carried out simultaneously, so that there is no production gap in the processing of quartz sand, ensuring the processing efficiency of quartz sand.
[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A crushing device for producing quartz sand with a screening structure, comprising a support base (1) and a support frame (5), characterized in that: The support base (1) is provided with a support frame (5) on one side, and an operation box (10) is provided on the upper side of the support frame (5). The operation box (10) is provided with a feeding port (4) on the upper end. A pair of connecting plates (9) are provided on one side of the operation box (10) and on the upper end of the support frame (5). A pair of crushing rollers (3) are provided inside the operation box (10). A pair of motors (2) are provided on the upper end of the support base (1). A transmission shaft is provided at the output end of the motor (2). The end of the transmission shaft away from the motor (2) passes through the side wall of the operation box (10) and is connected to the crushing rollers (3). A transmission belt group (11) is provided on the transmission shaft. A connecting shaft (12) is connected to the other end of the transmission belt group (11). A large eccentric part (17) is provided inside the operation box (10). A connecting shaft (19) is connected to the large eccentric part (17). A small eccentric part (18) is connected to the connecting shaft (19).
2. The crushing device for quartz sand production with a screening structure according to claim 1, characterized in that: A through-hole frame (13) is provided above the support frame (5). A movable plate (20) is provided at one end of the through-hole frame (13). Both ends of the movable plate (20) are movably mounted on the side wall of the operating box (10). The movable plate (20) is vertically aligned with the small eccentric part (18). A rotating shaft is provided at the end of the through-hole frame (13) away from the movable plate (20). Both ends of the rotating shaft are movably mounted on the upper end of the support frame (5). A screen plate (14) is provided above the through-hole frame (13). One end of the screen plate (14) is movably mounted on the inner wall of the operating box (10). The other end of the screen plate (14) is also provided with a rotating shaft. Both ends of the rotating shaft are movably mounted on a pair of connecting plates (9). A push plate (21) is provided at the lower end of the screen plate (14). The push plate (21) is vertically aligned with the large eccentric part (17). The axes of the connecting shaft (12) and the connecting shaft (19) are located on the same horizontal line.
3. The crushing device for quartz sand production with a screening structure according to claim 2, characterized in that: The support frame (5) has a second feeding box (8) at its lower end. The support frame (5) has a first feeding box (6) on the side away from the support base (1). The support frame (5) has a guide plate (7) on the side facing the first feeding box (6) at its upper end. The guide plate (7) extends into the first feeding box (6).
4. The crushing device for quartz sand production with a screening structure according to claim 3, characterized in that: The screen plate (14) and the through hole frame (13) are both inclined and are parallel to each other.
5. A crushing device for quartz sand production with a screening structure according to claim 4, characterized in that: The inner wall of the operating box (10) is provided with grooves for the movable plate (20) and the screen plate (14) to move.
6. The crushing device for quartz sand production with a screening structure according to claim 2, characterized in that: The upper end of the through-hole frame (13) is uniformly provided with several through-hole columns (16), and the screen plate (14) is uniformly provided with several screen holes (15), the screen holes (15) and the through-hole columns (16) are positioned corresponding to each other.
7. A crushing device for quartz sand production with a screening structure according to claim 6, characterized in that: The transmission belt assembly (11) includes a driving pulley, a driven pulley and an annular belt. The driving pulley is located on the transmission shaft, and the driven pulley is located on the connecting shaft (12). The driving pulley and the driven pulley are connected by an annular belt.
8. A crushing device for quartz sand production with a screening structure according to claim 7, characterized in that: The end of the connecting shaft (12) away from the large eccentric part (17) is movably located on the side of the support base (1), and the connecting shaft (12) is also movably connected to the side wall of the operating box (10).