Multi-stage vibration screening device for gravel washing
By introducing auxiliary discharge and buffer mechanisms into the multi-stage vibrating screening device, the problem of screen clogging was solved, achieving efficient screening and equipment stability, and ensuring the grading quality and production efficiency of sand and gravel.
Patent Information
- Application Number
- CN202520260646.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-02-19
AI Technical Summary
Traditional multi-stage vibrating screening devices lack auxiliary discharge functions, which makes the screen easy to clog and affects the screening efficiency of sand and gravel.
A multi-stage vibration screening device including a drive component and a buffer component was designed. The drive motor drives the transmission shaft and sprocket to rotate, and the push plate and nylon brush on the chain push the screened sand and gravel to be discharged. The buffer mechanism absorbs the vibration energy to reduce equipment vibration and noise.
It effectively prevents fine particles from clogging the screening components, improves screening efficiency, ensures screening accuracy and equipment stability, and reduces vibration and noise.
Smart Images
Figure CN223788947U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sand screening technology, and in particular to a multi-stage vibration screening device for sand and gravel washing. Background Technology
[0002] As an important raw material for construction and infrastructure, the quality of sand and gravel directly affects the safety and durability of projects. Sand and gravel washing multi-stage vibration screening is a high-efficiency screening technology for sand and gravel processing. By combining vibration screening and water washing, it can achieve the grading, cleaning and separation of sand and gravel, which can effectively improve the quality of sand and gravel and production efficiency. After screening, the sand and gravel are discharged outward through a conveying device. However, due to the small size of the sand and gravel particles at the bottom, traditional multi-stage vibration screening devices lack auxiliary discharge functions, which can easily lead to screen blockage, thus affecting the screening efficiency of sand and gravel.
[0003] To address the aforementioned issues, a multi-stage vibration screening device for sand and gravel washing has been developed. Utility Model Content
[0004] To overcome the shortcomings of traditional multi-stage vibrating screening devices, which lack auxiliary discharge function due to the small size of the lower sand and gravel particles and are prone to screen clogging, thus affecting the screening efficiency, this utility model provides a multi-stage vibrating screening device for sand and gravel washing.
[0005] The technical solution of this utility model is: a multi-stage vibrating screening device for sand and gravel washing, including an installation component, on which a vibration assembly is installed. Buffer components are installed on both the left and right sides and the front and rear sides of the installation component. Three mounting brackets are connected between the front and rear sides of the installation component. A first screening component is connected to the upper mounting bracket, a second screening component is connected to the middle mounting bracket, and a third screening component is connected to the lower mounting bracket. Six first limiting components are connected to both the front and rear sides of the installation component, with two adjacent first limiting components forming a group. The bracket has three second limiting members connected to both the left and right sides. The first and second limiting members on the upper side are in contact with the first screening member and can limit the first screening member. The first and second limiting members in the middle are in contact with the second screening member and can limit the second screening member. The first and second limiting members on the lower side are in contact with the third screening member and can limit the third screening member. An auxiliary discharge mechanism is provided on the mounting component.
[0006] Furthermore, the auxiliary discharge mechanism includes a drive assembly, which includes a drive motor, a transmission shaft, and sprockets. The drive motor is mounted on the lower left front side of the mounting component, and the transmission shaft is connected to the output shaft of the drive motor. The transmission shaft is also rotatably connected between the front and rear sides of the lower right side of the mounting component. The transmission shafts are all rotatably connected to the mounting component. Each transmission shaft is connected to two sprockets. A chain is provided between adjacent left and right sprockets. The chain meshes with the adjacent sprockets. Ten push plates are connected between the chains. Nylon brushes are connected to five of the push plates. The nylon brushes are all detachable connection structures.
[0007] Furthermore, it also includes a buffer mechanism, which includes a mounting base. The right side of the mounting component is connected to four mounting bases, each mounting base is connected to a damper, each damper has a spring inside, and the upper parts of the dampers are connected to a contact plate. The contact plate and the mounting base are slidably connected.
[0008] Furthermore, all of the buffer components are dual-spring structures.
[0009] Furthermore, both the first limiting member and the second limiting member are detachable connection structures.
[0010] Furthermore, the two adjacent nylon brushes are distributed alternately.
[0011] By adopting the above technical solutions, the beneficial effects of this utility model are:
[0012] 1. Based on the original multi-stage vibration screening device, this utility model uses an auxiliary discharge mechanism to drive the transmission shaft and sprocket to rotate via a drive motor. The push plate and nylon brush on the chain push the screened sand and gravel towards the discharge port, preventing fine sand and gravel particles from clogging the third screening element. At the same time, the nylon brush can further clean the residual material on the surface of the screening element to ensure the screening effect.
[0013] 2. This utility model uses a buffer mechanism, in combination with a damper and a spring, to further absorb vibration energy and reduce vibration and noise during equipment operation. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0015] Figure 2 This is a partial unfolded cross-sectional three-dimensional structural diagram of the present invention.
[0016] Figure 3 This is a partial cross-sectional three-dimensional structural diagram of the auxiliary discharge mechanism of this utility model.
[0017] Figure 4 This is a schematic diagram of a second partial cross-sectional three-dimensional structure of the auxiliary discharge mechanism of this utility model.
[0018] Figure 5 This is a partial cross-sectional three-dimensional structural diagram of the buffer mechanism of this utility model.
[0019] In the attached drawings, the following are the reference numerals: 1-mounting component, 2-vibration assembly, 3-buffer assembly, 4-mounting bracket, 5-first screening component, 6-second screening component, 7-third screening component, 8-first limiting component, 9-second limiting component, 10-auxiliary discharge mechanism, 101-drive assembly, 102-chain, 103-push plate, 104-nylon brush, 11-buffering mechanism, 111-contact plate, 112-mounting base, 113-damper, 114-spring. Detailed Implementation
[0020] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0021] Example 1
[0022] A multi-stage vibrating screening device for sand and gravel washing, such as Figure 1 and Figure 2 As shown, the device includes a mounting component 1, on which a vibration assembly 2 is mounted. Buffer assemblies 3 are mounted on both the left and right sides and the front and rear sides of the mounting component 1. Each buffer assembly 3 has a double-spring structure. Three mounting brackets 4 connect the front and rear sides of the mounting component 1. A first screening component 5 is connected to the upper mounting bracket 4, a second screening component 6 is connected to the middle mounting bracket 4, and a third screening component 7 is connected to the lower mounting bracket 4. Six first limiting components 8 are connected to both the front and rear sides of the mounting component 1, with two adjacent first limiting components 8 forming a group. Three first limiting components 8 are connected to both the left and right sides of the mounting bracket 4. The two limiting components 9, the first limiting component 8 and the second limiting component 9 are both detachable connection structures. The upper first limiting component 8 and the upper second limiting component 9 are both in contact with the first screening component 5 and can limit the first screening component 5. The middle first limiting component 8 and the middle second limiting component 9 are both in contact with the second screening component 6 and can limit the second screening component 6. The lower first limiting component 8 and the lower second limiting component 9 are both in contact with the third screening component 7 and can limit the third screening component 7. An auxiliary discharge mechanism 10 is provided on the mounting component 1.
[0023] like Figures 1-4As shown, the auxiliary discharge mechanism 10 includes a drive assembly 101, which includes a drive motor, a transmission shaft, and sprockets. The drive motor is mounted on the lower left front side of the mounting part 1, and the transmission shaft is connected to the output shaft of the drive motor. The transmission shaft is also rotatably connected between the front and rear sides of the lower right side of the mounting part 1. The transmission shafts are all rotatably connected to the mounting part 1. Each transmission shaft is connected to two sprockets. A chain 102 is provided between the left and right adjacent sprockets. The chain 102 meshes with the adjacent sprockets. Ten push plates 103 are connected between the chains 102. Nylon brushes 104 are connected to five of the push plates 103. The nylon brushes 104 are all detachable connection structures, and the two adjacent nylon brushes 104 are distributed alternately.
[0024] It should be noted that multi-stage vibratory screening of sand and gravel is a highly efficient screening technology for sand and gravel processing. By combining vibration screening and water washing, it achieves the grading, cleaning, and separation of sand and gravel, effectively improving the quality of sand and gravel and production efficiency. During this operation, the vibration assembly 2 is activated, driving the installation component 1, the first screening component 5, the second screening component 6, and the third screening component 7 to vibrate. Sand and gravel enter from the top of the device, first undergoing preliminary screening through the first screening component 5, where larger particles are separated and remain. Subsequently, medium-sized particles pass through the first screening component 5 and enter the second screening component 6 for secondary screening. Finally, fine particles pass through the second screening component 6 and enter the third screening component 7 for final screening. Through multi-stage screening, the sand and gravel are precisely separated into different particle size grades. The buffer assembly 3 adopts a double spring 114 structure, which effectively absorbs the impact force generated during vibration, reduces the vibration impact on the overall device, and ensures the stability of equipment operation. At the same time, the first limiting member 8 and the second limiting member 9 are respectively connected to each screening member to play a limiting role, preventing the first screening member 5, the second screening member 6, and the third screening member 7 from shifting or loosening during vibration, thus ensuring screening accuracy. The auxiliary discharge mechanism 10 drives the transmission shaft and sprocket to rotate through the drive motor. The push plate 103 and the nylon brush 104 on the chain 102 move accordingly. The push plate 103 pushes the screened sand and gravel towards the discharge port, while the nylon brush 104 cleans the residual material on the surface of the screening member, preventing fine sand and gravel particles from clogging the bottom three screening members. The nylon brush 104 adopts a detachable connection structure, which is convenient for maintenance and replacement.
[0025] Example 2
[0026] Based on Example 1, such as Figure 1 and Figure 5 As shown, it also includes a buffer mechanism 11, which includes a mounting base 112. Four mounting bases 112 are connected to the right side of the mounting component 1. Each mounting base 112 is connected to a damper 113. Each damper 113 is connected to a spring 114. A contact plate 111 is connected between the upper parts of the dampers 113. The contact plate 111 and the mounting base 112 are slidably connected.
[0027] It should be noted that the damper 113 and spring 114 work together to further absorb vibration energy and reduce vibration and noise during equipment operation. The contact plate 111 is slidably connected to the mounting base 112 to ensure the flexibility and stability of the buffer mechanism 11.
[0028] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A multi-stage vibrating screening device for sand and gravel washing, characterized in that: The utility model provides a kind of screening device, including mounting piece (1), the vibration assembly (2) is installed on the mounting piece (1), the mounting piece (1) left and right two parts front and back sides are equipped with buffering assembly (3), 3 mounting supports (4) are connected between the mounting piece (1) inside front and back sides, the first screening piece (5) is connected on the upper mounting support (4), the second screening piece (6) is connected on the middle mounting support (4), the third screening piece (7) is connected on the lower mounting support (4), the mounting piece (1) inside front and back sides are connected with 6 first limit parts (8), 2 adjacent first limit parts (8) are a group, the mounting support (4) left and right two parts are connected with 3 second limit parts (9), the first limit part (8) of upper side and the second limit part (9) of upper side are all contact type connection with the first screening piece (5), can play the limiting effect to the first screening piece (5), the first limit part (8) of middle and the second limit part (9) of middle are all contact type connection with the second screening piece (6), can play the limiting effect to the second screening piece (6), the first limit part (8) of lower side and the second limit part (9) of lower side are all contact type connection with the third screening piece (7), can play the limiting effect to the third screening piece (7), the mounting piece (1) is provided with auxiliary discharge mechanism (10).
2. A multi-stage sand and grit washing vibratory screening apparatus as claimed in claim 1, wherein: The auxiliary discharge mechanism (10) includes a drive assembly (101), the drive assembly (101) includes a drive motor, a transmission shaft and a sprocket, the drive motor is installed on the lower front side of the mounting piece (1), the transmission shaft is connected to the output shaft of the drive motor, the transmission shaft is also rotatably connected between the lower front and back sides of the right side of the mounting piece (1), the transmission shaft is rotatably connected to the mounting piece (1), two sprockets are connected to the transmission shaft, a chain (102) is arranged between the adjacent sprockets, the chain (102) is engaged with the adjacent sprockets, 10 push plates (103) are connected between the chains (102), nylon brushes (104) are connected to the five push plates (103), and the nylon brushes (104) are detachably connected.
3. A multi-stage sand and grit washing vibratory screening apparatus as claimed in claim 2, wherein: It also includes a buffering mechanism (11), the buffering mechanism (11) includes a mounting seat (112), the right part of the mounting piece (1) is connected with four mounting seats (112), a damper (113) is connected to the mounting seat (112), a spring (114) is connected inside the damper (113), a contact plate (111) is connected between the upper parts of the dampers (113), and the contact plate (111) is slidably connected to the mounting seat (112).
4. A multi-stage sand and grit washing vibratory screening apparatus as claimed in claim 1, wherein: The buffering assembly (3) is a double-spring structure.
5. A multi-stage sand and grit washing vibratory screening apparatus as claimed in claim 1, wherein: The first limit part (8) and the second limit part (9) are detachably connected.
6. A multi-stage sand and grit washing vibratory screening apparatus as claimed in claim 2, wherein: Adjacent two nylon brushes (104) are distributed alternately.