Sand screening machine for engineering construction
By introducing an anti-clogging mechanism into the sand screening machine and using an impact component to strike the sand screening drum, the problem of sand and gravel blockage in the sand screening device is solved, achieving efficient and stable screening results.
Patent Information
- Application Number
- CN202520190172.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-07
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-07
AI Technical Summary
Existing sand screening devices are prone to sand and gravel blockage during the screening process, resulting in poor screening efficiency and effectiveness, and failing to meet the requirements for high-efficiency and high-quality screening.
A sand screening machine including an anti-clogging mechanism was designed. By setting a suspension and inclined plate on the outside of the sand screening drum, the sand screening drum is struck by an impact component to prevent sand and gravel from clogging. The sand screening drum is driven to rotate by a transmission component for screening.
It effectively reduces clogging of the sand screening drum, ensures the continuity and efficiency of the screening process, and improves the screening effect and quality.
Smart Images
Figure CN223832785U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of building material processing technology, specifically relating to a sand screening machine for engineering construction. Background Technology
[0002] Currently, before construction, sand and gravel are screened to remove unsuitable sand and gravel to ensure the quality of concrete mixing. However, conventional sand screening devices may encounter blockages caused by sand and gravel with similar particle sizes, which affects the efficiency and effectiveness of screening and fails to meet the requirements for efficient and high-quality screening. Utility Model Content
[0003] The purpose of this utility model is to provide a sand screening machine for engineering construction, which solves the problems mentioned in the background art.
[0004] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:
[0005] A sand screening machine for engineering construction includes a base and a control panel. The base is provided with ring-shaped supports at the front and rear ends. A sand screening drum is rotatably provided between the two ring supports. One of the ring supports is provided with a transmission component connected to the sand screening drum. The upper ends of the two ring supports are jointly provided with an anti-clogging mechanism that matches the sand screening drum.
[0006] The anti-blocking mechanism includes a suspension, an inclined plate, and an impact assembly. The suspension is fixedly mounted on the upper end of two annular supports. The inclined plate is inclined to the outer side of the sand screening drum. The number of inclined plates is several, arranged in a circumferential array and equidistantly along the axial direction of the sand screening drum. The number of impact assemblies is the same as the number of inclined plate groups arranged equidistantly in the circumferential array and their positions correspond to each other.
[0007] The impact assembly includes a slide rod, a spring, a limiting plate, and a striking plate. The slide rod is slidably connected to the suspension via a guide rib. The limiting plate is located at the upper end of the slide rod and at the upper end of the suspension. The striking plate is connected to the other end of the slide rod and abuts against the side of the sand screening drum. The spring is sleeved on the slide rod and located between the suspension and the striking plate.
[0008] The sand screening roller includes a cylinder body, an inner shaft, end plates, and inner plates. There are two end plates, which are located at both ends of the cylinder body and are coinciding with the center. The inner shaft is fixed between the two end plates and is concentric with the cylinder body. There are several inner plates, which are located between the inner shaft and the inner wall of the cylinder body. Several sieve holes are opened on the side of the cylinder body.
[0009] The transmission assembly includes a motor, a drive wheel, a driven wheel, and a transmission belt. The motor is fixedly mounted on a ring-shaped support. The drive wheel is connected to the motor output shaft. The driven wheel is connected to one of the end plates and is concentric with the cylinder. The transmission belt is located between the drive wheel and the driven wheel.
[0010] The cylinder is inclined relative to the ground.
[0011] The cylinder is equipped with several sand-bearing plates.
[0012] This application has at least the following advantages compared to the prior art:
[0013] This application, through the setting of an anti-clogging mechanism, utilizes the rotation of the sand screening drum itself to generate a knocking action on the sand screening drum in a cyclical manner, thereby reducing the impact of sand and gravel of the same size as the screen holes of the sand screening drum on clogging and affecting the sand screening efficiency and effect. Attached Figure Description
[0014] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings.
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0016] Figure 2 This is a cross-sectional view of the structure of this utility model.
[0017] Figure 3 This is a schematic diagram of the impact component of this utility model.
[0018] 1. Base, 11. Ring bracket, 2. Suspension, 3. Inclined plate, 4. Slide rod, 41. Spring, 42. Limiting plate, 43. Striking plate, 5. Cylinder, 51. Inner shaft, 52. End plate, 53. Inner plate, 6. Motor, 61. Drive wheel, 62. Driven wheel, 63. Transmission belt, 7. Sand baffle. Detailed Implementation
[0019] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.
[0020] like Figure 1-3 As shown, a sand screening machine for engineering construction includes a base 1 and a control panel. The base 1 has annular supports 11 at its front and rear ends. A sand screening drum is rotatably arranged between the two annular supports 11. One of the annular supports 11 is provided with a transmission component connected to the sand screening drum. The upper ends of the two annular supports 11 are jointly provided with an anti-blocking mechanism that matches the sand screening drum.
[0021] The anti-blocking mechanism includes a suspension 2, an inclined plate 3, and an impact component. The suspension 2 is fixedly mounted on the upper end of two ring-shaped supports 11. The inclined plate 3 is inclined to the outer side of the sand screening drum. There are several inclined plates 3 arranged in a circular array and equidistantly along the axis of the sand screening drum. The number of impact components is the same as the number of inclined plates 3 arranged in a circular array and their positions correspond.
[0022] When screening sand and gravel, the sand and gravel are fed from one side of the screening drum. At the same time, the transmission component is turned on through the control panel so that the screening drum rotates between the two annular supports 11. This causes the sand and gravel to be screened by rolling displacement inside the screening drum.
[0023] Because some sand and gravel in the sand and gravel are similar in size to the screen drum, these sand and gravel can easily clog the screen drum, affecting the screening efficiency and effect. Therefore, during the operation of the screen drum, the inclined plate 3 on the outside of the screen drum will circulate through the impact component, which will drive the impact component to strike the corresponding area of the screen drum when it reaches the high position. This can knock off some of the sand and gravel stuck in the screen drum, thus facilitating the output as the screen drum continues to run. Although such sand and gravel may still get stuck in the screen drum's aperture, since the screen drum and the striking are continuous, the overall impact of clogging on screening efficiency can be reduced, ensuring the normal operation of screening.
[0024] The impact assembly includes a slide rod 4, a spring 41, a limiting plate 42, and a striking plate 43. The slide rod 4 is slidably connected to the suspension 2 via a guide rib. The limiting plate 42 is located at the upper end of the slide rod 4 and at the upper end of the suspension 2. The striking plate 43 is connected to the other end of the slide rod 4 and abuts against the side of the sand screening drum. The spring 41 is sleeved on the slide rod 4 and located between the suspension 2 and the striking plate 43.
[0025] When the inclined plate 3 passes the striking plate 43, the inclined plate 3 will lift the striking plate 43 due to its tilted setting. This will cause the slide rod 4 to slide and compress the spring 41 until the striking plate 43 is completely separated from the inclined plate 3. At this time, the striking plate 43 is in a high position. The spring 41 can then push back to generate a striking action, which will cause the sand and gravel to fall off by striking and vibrating the screening drum.
[0026] The sand screening drum includes a cylinder body 5, an inner shaft 51, end plates 52 and inner plates 53. There are two end plates 52, which are located at both ends of the cylinder body 5 and are coinciding with the center. The inner shaft 51 is fixed between the two end plates 52 and is concentric with the cylinder body 5. There are several inner plates 53, which are located between the inner shaft 51 and the inner wall of the cylinder body 5. Several screening holes are opened on the side of the cylinder body 5.
[0027] The transmission assembly includes a motor 6, a drive wheel 61, a driven wheel 62, and a transmission belt 63. The motor 6 is fixedly mounted on the annular support 11. The drive wheel 61 is connected to the output shaft of the motor 6. The driven wheel 62 is connected to one of the end plates 52 and is concentric with the cylinder 5. The transmission belt 63 is located between the drive wheel 61 and the driven wheel 62.
[0028] When the motor 6 starts, it transmits rotational power to the driven wheel 62 through the drive wheel 61 and the transmission belt 63, which in turn drives the entire cylinder 5 to rotate through the end plate 52. The cooperation of the inner shaft 51, the end plate 52 and the inner plate 53 can improve the strength of the entire sand screening cylinder and improve the stability of the equipment.
[0029] The cylinder 5 is inclined relative to the ground; this can further promote the movement of the screened sand and gravel and the discharge of sand and gravel that do not conform to the particle size.
[0030] The cylinder 5 is equipped with several sand baffles 7; this can temporarily block the movement of sand and gravel, prevent the sand and gravel from moving too fast and causing incomplete screening, and improve the screening quality.
[0031] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.
Claims
1. A sand screening machine for engineering construction, comprising a base and a control panel, characterized in that: The base is provided with ring-shaped supports at the front and rear ends, and a sand screening roller is rotatably provided between the two ring-shaped supports. One of the ring-shaped supports is provided with a transmission component connected to the sand screening roller, and the upper ends of the two ring-shaped supports are provided with an anti-clogging mechanism that matches the sand screening roller. The anti-blocking mechanism includes a suspension, an inclined plate, and an impact assembly. The suspension is fixedly mounted on the upper end of two annular supports. The inclined plate is inclined to the outer side of the sand screening drum. The number of inclined plates is several, arranged in a circumferential array and equidistantly along the axial direction of the sand screening drum. The number of impact assemblies is the same as the number of inclined plate groups arranged equidistantly in the circumferential array and their positions correspond to each other.
2. The sand screening machine for engineering construction according to claim 1, characterized in that: The impact assembly includes a slide rod, a spring, a limiting plate, and a striking plate. The slide rod is slidably connected to the suspension via a guide rib. The limiting plate is located at the upper end of the slide rod and at the upper end of the suspension. The striking plate is connected to the other end of the slide rod and abuts against the side of the sand screening drum. The spring is sleeved on the slide rod and located between the suspension and the striking plate.
3. A sand screening machine for engineering construction according to claim 2, characterized in that: The sand screening roller includes a cylinder body, an inner shaft, end plates, and inner plates. There are two end plates, which are located at both ends of the cylinder body and are coinciding with the center. The inner shaft is fixed between the two end plates and is concentric with the cylinder body. There are several inner plates, which are located between the inner shaft and the inner wall of the cylinder body. Several sieve holes are opened on the side of the cylinder body.
4. A sand screening machine for engineering construction according to claim 3, characterized in that: The transmission assembly includes a motor, a drive wheel, a driven wheel, and a transmission belt. The motor is fixedly mounted on a ring-shaped support. The drive wheel is connected to the motor output shaft. The driven wheel is connected to one of the end plates and is concentric with the cylinder. The transmission belt is located between the drive wheel and the driven wheel.
5. A sand screening machine for engineering construction according to claim 4, characterized in that: The cylinder is inclined relative to the ground.
6. A sand screening machine for engineering construction according to claim 5, characterized in that: The cylinder is equipped with several sand-bearing plates.