Concrete aggregate multi-stage vibration screening device
By designing a multi-stage vibrating screening device for concrete aggregates with inclined plate vibration and controlling the feed flow rate, the problem of difficult removal of aggregates after screening was solved, achieving an efficient and stable screening process and improving overall work efficiency and screening quality.
Patent Information
- Application Number
- CN202521060113.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-12
- Estimated Expiration
- 2035-05-27
AI Technical Summary
In existing technologies, concrete aggregates are difficult to remove after screening, which affects the normal progress of subsequent work.
A multi-stage vibrating screening device for concrete aggregate was designed, including an inclined plate, a collection box, a power component, a limiting component, and a screening component. Precise screening is achieved by the vibration and angle adjustment of the inclined plate, and the feed flow rate is adjusted by a control mechanism to ensure screening efficiency and stability.
It improves screening efficiency, facilitates aggregate collection, ensures high efficiency and stability in the screening process, prevents excessive wear of equipment, and enhances overall work efficiency and screening quality.
Smart Images
Figure CN224221948U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of concrete technology, and in particular to a multi-stage vibrating screening device for concrete aggregates. Background Technology
[0002] Concrete is one of the main civil engineering materials in modern times. As an important component of concrete, the quality of aggregate directly affects the performance and service life of concrete. Different construction projects have strict requirements on the particle size and gradation of concrete aggregates. For example, large-diameter coarse aggregates can be used to enhance the load-bearing capacity of road base courses, medium-diameter aggregates are suitable for highway surface paving or concrete mixing, and fine aggregates can be used for mortar. In order to ensure the quality of concrete, it is necessary to accurately control the particle size distribution of aggregates and separate aggregates of different sizes to meet the requirements of concrete preparation. Traditional simple screening equipment is difficult to meet this high-precision screening requirement, thus promoting the development of multi-stage vibrating screening devices.
[0003] A search revealed Chinese Patent Publication No. CN214975655U, which discloses a multi-layer screening device based on different particle sizes of concrete aggregate. The device includes a measuring tank containing multiple screens of varying sizes, coaxially nested and arranged in sequence, with the pore size decreasing from the inside out. It also includes a controller, a vibrating unit, and a multi-stage weighing assembly. The controller controls the operation of the vibrating unit and the multi-stage weighing assembly, the vibrating unit drives the multi-stage screens to vibrate, and the multi-stage weighing assembly weighs the multiple screens. While this application facilitates more accurate determination of the uniformity of concrete aggregate particles, it fails to consider the difficulty in removing the screened aggregate, hindering worker convenience and potentially affecting subsequent work. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a multi-stage vibrating screening device for concrete aggregates, which aims to improve the problem in the prior art where the aggregates after screening are difficult to remove, making it inconvenient for workers to use and thus affecting the normal operation of subsequent work.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a multi-stage vibrating screening device for concrete aggregate, comprising a machine body, an inclined plate slidably connected to the right side of the inner wall of the machine body, a screening mechanism provided on the inner wall of the machine body for screening concrete aggregate, and a control mechanism provided on the left side of the inner wall of the machine body for controlling the feed flow rate.
[0006] The screening mechanism includes two hollow shells, the rear sides of which are fixedly connected to the front left and right sides of the machine body. A collection box is slidably connected to the inner wall of the inclined plate. A power component is provided at the bottom of the inner wall of the machine body. A limit component is provided at the top right side of the inner wall of the machine body. A pulling component is provided at the bottom of the inner wall of the inclined plate. A screening component is provided at the top of the inner wall of the inclined plate.
[0007] Through the above technical solutions: the inclined plate not only saves space but also improves the flexibility of operation. The purpose of the screening mechanism is to accurately screen concrete aggregates to ensure the uniformity and quality of materials. The control mechanism can accurately control the feed flow rate, thereby ensuring the efficiency and stability of the entire screening process.
[0008] The collection box effectively collects the screened material, ensuring screening efficiency and material cleanliness. The power unit is the power source of the entire screening equipment, providing continuous and stable power for the screening process. The limiting component ensures the accurate position of the inclined plate during movement, preventing excessive wear of the equipment. The pulling component and the screening component work together to allow the inclined plate to flexibly adjust its angle and position to adapt to the screening needs of different materials.
[0009] As a further description of the above technical solution:
[0010] The control mechanism includes a second spring column. The second spring column is fixedly connected to the front and rear ends of the left side of the inner wall of the machine body. A baffle is fixedly connected to the bottom end of the second spring column. A pushing component is provided on the top left side of the machine body. A feeding chute is opened on the top left side.
[0011] Through the above technical solution: the spring column 2 is not only firmly fixed to the machine body, but its bottom end is also fixedly connected to the baffle, ensuring the stability and durability of the overall structure. The pushing component makes the material pushing process more efficient and precise, and the feeding chute facilitates the smooth entry of materials.
[0012] As a further description of the above technical solution:
[0013] The power assembly includes a motor, the front side of which is fixedly connected to the inner wall of the hollow shell, and a rotating rod is fixedly connected to the output end of the motor. Eccentric wheels are fixedly connected to the front and rear sides of the outer wall of the rotating rod.
[0014] The above technical solution ensures the stability and transmission efficiency between the two. The rotating rod is the key link in the entire power transmission chain, responsible for converting the power generated by the motor into mechanical motion. The eccentric wheel utilizes the principle of centrifugal force to achieve specific motion effects.
[0015] As a further description of the above technical solution:
[0016] The limiting component includes a spring post, the left end of which is fixedly connected to the middle of the right side of the machine body, and a triangular plate is fixedly connected to the right side of the spring post.
[0017] The above technical solutions ensure the accuracy and repeatability of the screening process.
[0018] As a further description of the above technical solution:
[0019] The pulling assembly includes a rotating ball, the outer wall of which is rotatably connected to the right side of the collection box, and a rotating column is fixedly connected to the rear side of the outer wall of the rotating ball.
[0020] The above technical solution not only ensures the flexible rotation of the ball, but also ensures the stability and durability between the ball and the collection box during operation. The rotating column enables the entire pulling assembly to withstand greater forces during use, ensuring its reliability in long-term use.
[0021] As a further description of the above technical solution:
[0022] The screening assembly includes a screening plate, the outer wall of which is fixedly connected to the top of the inner wall of the inclined plate, and the top of the screening plate has multiple screening holes.
[0023] The above technical solution not only ensures the stability of the screening plate, but also effectively prevents the screening plate from shaking during the screening process, thereby improving the screening accuracy. The screening holes can adapt to materials of different sizes and shapes for effective screening, making the screening components both efficient and accurate in processing materials, greatly improving the working efficiency and screening quality of the entire equipment.
[0024] As a further description of the above technical solution:
[0025] The pushing assembly includes a threaded rod, the outer wall of which is threadedly connected to the top of the machine body, and a fixing post is fixedly connected to the top of the threaded rod.
[0026] The above technical solution ensures the robustness and precise control of the components. The fixed column not only enhances the stability of the pushing components, but also makes the entire machine more stable and reliable during operation.
[0027] As a further description of the above technical solution:
[0028] The outer wall of the rotating rod is rotatably connected to the front and rear sides of the outer wall of the machine body, and a limit ring is threadedly connected to the rear side of the outer wall of the rotating rod.
[0029] The above technical solution not only reduces friction but also improves overall motion flexibility. The limiting ring restricts the range of motion of the rotating rod, preventing excessive rotation and mechanical damage, thus ensuring the safe operation of the entire system.
[0030] This utility model has the following beneficial effects:
[0031] 1. In this utility model, aggregate is poured into the feed trough and falls to the top of the screening plate. The motor is started, which drives the rotating rod and eccentric wheel to rotate. The eccentric design of the eccentric wheel causes the inclined plate to vibrate up and down. The aggregate enters the collection box through the screening hole. The collection box can be pulled out by pulling the rotating column. This realizes the screening of concrete aggregate, improves the screening efficiency, and facilitates the collection of the screened aggregate.
[0032] 2. In this utility model, when controlling the feed flow rate, the fixed column is pushed to make the threaded rod rotate, which drives the baffle to slide down and block the feed chute to reduce the flow rate. When the flow rate needs to be increased, the threaded rod is rotated in the opposite direction, and the spring column pulls the baffle to reset. This can realize the control of the aggregate flow rate and prevent the aggregate from accumulating due to excessive flow rate, thereby affecting the screening effect. Attached Figure Description
[0033] Figure 1 This is a perspective view of the front side of the body of a multi-stage vibrating screening device for concrete aggregate proposed in this utility model;
[0034] Figure 2 This is a partial structural breakdown diagram of the collection box of a multi-stage vibrating screening device for concrete aggregates proposed in this utility model;
[0035] Figure 3 This is a partial structural diagram of the screening plate of a multi-stage vibrating screening device for concrete aggregates proposed in this utility model;
[0036] Figure 4 This is a partial structural diagram of the inclined plate of a multi-stage vibrating screening device for concrete aggregates proposed in this utility model.
[0037] Figure 5 This is a partial structural diagram of the baffle of a multi-stage vibrating screening device for concrete aggregate proposed in this utility model.
[0038] Legend:
[0039] 1. Machine body; 2. Screening mechanism; 201. Hollow shell; 202. Collection box; 203. Power assembly; 2031. Motor; 2032. Rotating rod; 2033. Eccentric wheel; 204. Limiting assembly; 2041. Triangular plate; 2042. Spring column one; 205. Pulling assembly; 2051. Rotating ball; 2052. Rotating column; 206. Screening assembly; 2061. Screening plate; 2062. Screening hole; 3. Control mechanism; 301. Feed chute; 302. Baffle; 303. Spring column two; 304. Pushing assembly; 3041. Threaded rod; 3042. Fixed column; 4. Inclined plate; 5. Limiting ring. Detailed Implementation
[0040] 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.
[0041] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 4 An embodiment of this utility model is provided: a multi-stage vibrating screening device for concrete aggregate, including a machine body 1, an inclined plate 4 slidably connected to the right side of the inner wall of the machine body 1, a screening mechanism 2 provided on the inner wall of the machine body 1, the screening mechanism 2 being used to screen concrete aggregate, and a control mechanism 3 provided on the left side of the inner wall of the machine body 1, the control mechanism 3 being used to control the flow rate of the feed.
[0042] The screening mechanism 2 includes two hollow shells 201. The rear sides of the two hollow shells 201 are fixedly connected to the front left and right sides of the machine body 1. The inner wall of the inclined plate 4 is slidably connected to the collection box 202. The bottom of the inner wall of the machine body 1 is provided with a power component 203. The top right side of the inner wall of the machine body 1 is provided with a limit component 204. The bottom of the inner wall of the inclined plate 4 is provided with a pulling component 205. The top of the inner wall of the inclined plate 4 is provided with a screening component 206. The limit component 204 includes a spring column 2042. The left end of the spring column 2042 is fixedly connected to the middle right side of the machine body 1. The right side of the spring column 2042 is fixedly connected with a triangular plate 2041.
[0043] Specifically, the inclined plate 4 not only saves space but also improves operational flexibility. The purpose of the screening mechanism 2 is to accurately screen concrete aggregates to ensure material uniformity and quality. The control mechanism 3 can accurately control the feed flow rate, thereby ensuring the efficiency and stability of the entire screening process.
[0044] The collection box 202 can effectively collect the screened material, ensuring screening efficiency and material cleanliness. The power component 203 is the power source of the entire screening equipment, providing continuous and stable power for the screening process. The limiting component 204 ensures the accurate position of the inclined plate 4 during the movement process, preventing excessive wear of the equipment. The pulling component 205 and the screening component 206 work together to allow the inclined plate 4 to flexibly adjust its angle and position to adapt to the screening requirements of different materials. The spring column 2042 is fixedly connected to the machine body 1, ensuring the accuracy and repeatability of the screening process.
[0045] Please see the appendix Figure 1 Appendix Figure 3 and attached Figure 5 The control mechanism 3 includes a second spring column 303. The second spring column 303 is fixedly connected to the front and rear ends of the left side of the inner wall of the machine body 1. A baffle 302 is fixedly connected to the bottom end of the second spring column 303. A pushing component 304 is provided on the top left side of the machine body 1. A feeding groove 301 is opened on the top left side of the machine body 1. The pushing component 304 includes a threaded rod 3041. The outer wall of the threaded rod 3041 is threadedly connected to the top of the machine body 1. A fixing column 3042 is fixedly connected to the top of the threaded rod 3041.
[0046] Specifically, the spring column 303 is not only firmly fixed to the machine body 1, but its bottom end is also fixedly connected to the baffle 302, ensuring the stability and durability of the overall structure. The pushing component 304 makes the material pushing process more efficient and precise. The feed chute 301 facilitates the smooth entry of materials. The threaded rod 3041 is threadedly connected to the machine body 1, ensuring the firmness and precise control of the component. The fixed column 3042 not only enhances the stability of the pushing component 304, but also makes the entire machine body 1 more stable and reliable during operation.
[0047] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 The power assembly 203 includes a motor 2031. The front side of the motor 2031 is fixedly connected to the inner wall of the hollow shell 201. A rotating rod 2032 is fixedly connected to the output end of the motor 2031. An eccentric wheel 2033 is fixedly connected to both the front and rear sides of the outer wall of the rotating rod 2032. The outer wall of the rotating rod 2032 is rotatably connected to both the front and rear sides of the outer wall of the machine body 1. A limit ring 5 is threadedly connected to the rear side of the outer wall of the rotating rod 2032.
[0048] Specifically, the motor 2031 is fixedly connected to the hollow shell 201, ensuring stability and transmission efficiency between the two. The rotating rod 2032 is a key link in the entire power transmission chain, responsible for converting the power generated by the motor 2031 into mechanical motion. The eccentric wheel 2033 utilizes the principle of centrifugal force to achieve specific motion effects. The rotating rod 2032 is rotatably connected to the body 1, which not only reduces friction but also improves the overall motion flexibility. The limiting ring 5 restricts the range of motion of the rotating rod 2032, preventing it from rotating excessively and causing mechanical damage, thus ensuring the safe operation of the entire system.
[0049] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 The pulling component 205 includes a rotating ball 2051, the outer wall of which is rotatably connected to the right side of the collection box 202, and a rotating column 2052 is fixedly connected to the rear side of the outer wall of the rotating ball 2051. The screening component 206 includes a screening plate 2061, the outer wall of which is fixedly connected to the top of the inner wall of the inclined plate 4, and a plurality of screening holes 2062 are provided on the top of the screening plate 2061.
[0050] Specifically, the rotating ball 2051 is rotatably connected to the collection box 202, which not only ensures the flexible rotation of the rotating ball 2051, but also ensures the stability and durability between the rotating ball 2051 and the collection box 202 during operation. The rotating column 2052 enables the entire pulling assembly 205 to withstand greater forces during use, ensuring its reliability in long-term use. The screening plate 2061 is fixedly connected to the inclined plate 4, which not only ensures the stability of the screening plate 2061, but also effectively prevents the screening plate 2061 from shaking during screening, thereby improving the screening accuracy. The screening holes 2062 can adapt to materials of different sizes and shapes for effective screening, making the screening assembly 206 both efficient and accurate in processing materials, greatly improving the working efficiency and screening quality of the entire equipment.
[0051] Working principle: The aggregate is poured into the feed chute 301, so that the aggregate falls onto the top of the screening plate 2061. Then the motor 2031 is started, which drives the rotating rod 2032 and the eccentric wheel 2033 to rotate. Since the connection between the eccentric wheel 2033 and the rotating rod 2032 is off-center, the eccentric wheel 2033 will push the inclined plate 4 to move upward during rotation. The inclined plate 4 will move downward under its own gravity, which will cause the screening plate 2061 to vibrate up and down. The aggregate will enter the collection box 202 through the screening hole 2062. Pulling the rotating column 2052 can pull out the collection box 202, which realizes the screening of concrete aggregate, improves screening efficiency, and facilitates the collection of the screened aggregate.
[0052] When it is necessary to control the feed flow rate, push the fixed column 3042, which will drive the threaded rod 3041 to rotate. During the rotation, the threaded rod 3041 will push the lower baffle 302, causing the baffle 302 to slide downward, thereby blocking part of the feed chute 301 and reducing the aggregate flow rate. When it is necessary to increase the flow rate, rotate the threaded rod 3041 in the opposite direction, and the spring column 303 will pull the baffle 302 to return it to its original position. This can achieve the control of the aggregate flow rate and prevent aggregate accumulation due to excessive flow, which would affect the screening effect.
[0053] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A multi-stage vibrating screen for concrete aggregate, comprising a body (1), characterized in that: An inclined plate (4) is slidably connected to the right side of the inner wall of the machine body (1). A screening mechanism (2) is provided on the inner wall of the machine body (1). The screening mechanism (2) is used to screen concrete aggregates. A control mechanism (3) is provided on the left side of the inner wall of the machine body (1). The control mechanism (3) is used to control the flow rate of the feed. The screening mechanism (2) includes two hollow shells (201). The rear sides of the two hollow shells (201) are fixedly connected to the front left and right sides of the machine body (1). The inner wall of the inclined plate (4) is slidably connected to a collection box (202). The bottom of the inner wall of the machine body (1) is provided with a power component (203). The top right side of the inner wall of the machine body (1) is provided with a limit component (204). The bottom of the inner wall of the inclined plate (4) is provided with a pulling component (205). The top of the inner wall of the inclined plate (4) is provided with a screening component (206).
2. The multi-stage vibrating screen for concrete aggregates according to claim 1, characterized in that: The control mechanism (3) includes a second spring column (303). The front and rear ends of the left side of the inner wall of the machine body (1) are fixedly connected to the second spring column (303). The bottom end of the second spring column (303) is fixedly connected to a baffle (302). A push assembly (304) is provided on the top left side of the machine body (1). A feed chute (301) is opened on the top left side of the (1).
3. The multi-stage vibrating screen for concrete aggregates according to claim 1, characterized in that: The power assembly (203) includes a motor (2031), the front side of which is fixedly connected to the inner wall of the hollow shell (201), and a rotating rod (2032) is fixedly connected to the output end of the motor (2031). Eccentric wheels (2033) are fixedly connected to the front and rear sides of the outer wall of the rotating rod (2032).
4. The multi-stage vibrating screen for concrete aggregate according to claim 1, characterized in that: The limiting component (204) includes a spring post (2042), the left end of which is fixedly connected to the middle right side of the body (1), and a triangular plate (2041) is fixedly connected to the right side of the spring post (2042).
5. The multi-stage vibrating screen for concrete aggregate according to claim 1, characterized in that: The pulling assembly (205) includes a rotating ball (2051), the outer wall of which is rotatably connected to the right side of the collection box (202), and a rotating column (2052) is fixedly connected to the rear side of the outer wall of the rotating ball (2051).
6. The multi-stage vibrating screen for concrete aggregate according to claim 1, characterized in that: The screening assembly (206) includes a screening plate (2061), the outer wall of the screening plate (2061) is fixedly connected to the top of the inner wall of the inclined plate (4), and the top of the screening plate (2061) is provided with a plurality of screening holes (2062).
7. A multi-stage vibrating screen for concrete aggregates according to claim 2, characterized in that: The push assembly (304) includes a threaded rod (3041), the outer wall of which is threaded to the top of the body (1), and a fixed post (3042) is fixedly connected to the top of the threaded rod (3041).
8. A multi-stage vibrating screen for concrete aggregates according to claim 3, characterized in that: The outer wall of the rotating rod (2032) is rotatably connected to the front and rear sides of the outer wall of the machine body (1), and a limit ring (5) is threadedly connected to the rear side of the outer wall of the rotating rod (2032).