Concrete gravel screening equipment
By designing concrete sand and gravel screening equipment with multiple sets of internal and external screening frames, the problem that existing equipment can only screen one particle size sand and gravel is solved, achieving efficient screening and reducing screen wear.
Patent Information
- Application Number
- CN202421278952.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-05
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-06-05
AI Technical Summary
Existing construction sand and gravel screening equipment can only screen sand and gravel of one particle size, and it requires multiple screenings, resulting in inefficiency.
A concrete sand and gravel screening equipment is designed, using multiple sets of inner screening frames and outer screening frames. The screening hole sizes of the inner screening frame are different. When rotating, the outer screening frame drives the inner screening frame to rotate to reduce the impact and wear of particles on the screen.
It realizes the simultaneous screening of sand and gravel of different particle sizes, improves the screening efficiency and reduces the wear of the screen mesh.
Smart Images
Figure CN222678675U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sand and gravel screening, in particular to concrete sand and gravel screening equipment. Background Art
[0002] Publication (announcement) number CN219210635U, a construction sand and gravel screening equipment, including a body, a power mechanism is provided on one side of the body, two driving rods are provided on the power mechanism, and a synchronization mechanism is commonly provided at the other ends of the two driving rods, and two grooves are symmetrically opened on the opposite inner walls of the body, and a scraping mechanism is commonly provided in the two grooves.
[0003] In the above-mentioned prior art, the sand and gravel raw materials are placed on the screen 12, and then the sand and gravel raw materials are screened by vibrating the screen 12. There is only one screening space on the screen 12, and only sand and gravel of one particle size can be screened out. If sand and gravel of multiple particle sizes are required, multiple screenings are required, thereby reducing the screening efficiency. Utility Model Content
[0004] Therefore, in order to solve the above-mentioned shortcomings, the utility model provides a concrete sand and gravel screening device.
[0005] The utility model is achieved in that a concrete sand and gravel screening device is constructed, the device comprises a base frame, a screening frame is fixedly connected to the base frame, a servo motor is fixedly connected to the side wall of the screening frame, and a controller is arranged on the side wall of the screening frame; a receiving shaft is rotatably connected to the inner side wall of the screening frame contacting with the servo motor, the receiving shaft is fixedly connected to the output shaft of the servo motor, a gear ring is fixedly connected to the inner side wall of the screening frame, the gear ring is meshed with the gear, one end of the receiving shaft is fixedly connected to the side wall of the outer screening frame, the gear is rotatably connected to the center of the screening frame, the other end of the screening frame is threadedly connected to the outer threaded cover, an inner screening frame is rotatably connected in the screening frame, the inner screening frame is fixedly connected to the center of the gear, and the other end of the inner screening frame is threadedly connected to the inner threaded cover.
[0006] In a feasible implementation, a discharge ramp is provided at the bottom of the screening frame, and a first screening component, a second screening component, and a third screening component are provided on the receiving shaft.
[0007] In a feasible implementation, the first screening assembly, the second screening assembly, and the third screening assembly have the same structure and consist of gears, an external screening frame, an external threaded cover, an inner screening frame, and an internal threaded cover, and the gears on the first screening assembly, the second screening assembly, and the third screening assembly are meshed with the gear rings.
[0008] In a feasible implementation, the screening apertures on the multiple groups of outer screening frames are of the same size, and the screening apertures on the multiple groups of inner screening frames are of different sizes.
[0009] In a feasible implementation, the side wall of the screening frame away from the servo motor is hollowed out.
[0010] The utility model has the following advantages: The utility model provides a concrete sand and gravel screening device through improvement, which has the following improvements compared with the same type of devices:
[0011] The utility model discloses a concrete sand and gravel screening device, and the screening aperture sizes on multiple groups of inner screening frames are different, so that the sand and gravel remaining after screening on the multiple groups of inner screening frames can be of different particle size grades, that is, there are multiple screening spaces inside the screening device, so as to simultaneously screen out sand and gravel of different particle sizes; when the outer screening frame rotates, the inner screening frame rotates at the same time, and the rotation makes the sand and gravel particles on the screen continuously move and roll, thereby reducing the direct impact and wear of the particles on the screen and improving the screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the structure of the utility model;
[0013] Figure 2 This is a schematic diagram of the structure inside the screening frame of the utility model;
[0014] Figure 3 This is a schematic diagram of the connection relationship structure of the outer screening frame of the utility model;
[0015] Figure 4 It is a schematic diagram of the supporting shaft structure of the utility model.
[0016] Among them: base frame-1, screening frame-2, servo motor-3, controller-4, connecting shaft-5, gear ring-6, gear-7, external screening frame-8, external thread cover-9, internal screening frame-10, internal thread cover-11, discharge chute-12, first screening component-13, second screening component-14, third screening component-15. DETAILED DESCRIPTION
[0017] The following will be combined with the attached Figure 1-Figure 4 The utility model is described in detail, and the technical solutions in the embodiments of the utility model are made clear. The complete description is obvious. The described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0018] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.
[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.
[0020] See also Figures 1 to 4 The utility model discloses a concrete sand and gravel screening device, comprising a base frame 1, a screening frame 2 is fixedly connected to the base frame 1, a servo motor 3 is fixedly connected to the side wall of the screening frame 2, and a controller 4 is arranged on the side wall of the screening frame 2, and the servo motor 3 is electrically connected to the controller 4.
[0021] Specifically, the inner side wall of the screening frame 2 in contact with the servo motor 3 is rotatably connected with a receiving shaft 5, and the receiving shaft 5 is fixedly connected to the output shaft of the servo motor 3. The inner side wall of the screening frame 2 is fixedly connected with a ring gear 6, and the ring gear 6 is meshed with a gear 7. One end of the receiving shaft 5 is fixedly connected to the side wall of the outer screening frame 8, and the gear 7 is rotatably connected to the center of the screening frame 8. The other end of the screening frame 8 is threadedly connected to the external threaded cover 9. The inner screening frame 10 is rotatably connected to the inside of the screening frame 8, and the inner screening frame 10 is fixedly connected to the center of the gear 7. The other end of the inner screening frame 10 is threadedly connected to the internal threaded cover 11.
[0022] Specifically, a discharge ramp 12 is provided at the bottom of the screening frame 2, and a first screening component 13, a second screening component 14, and a third screening component 15 are provided on the receiving shaft 5. The first screening component 13, the second screening component 14, and the third screening component 15 have the same structure and are composed of a gear 7, an outer screening frame 8, an outer threaded cover 9, an inner screening frame 10, and an inner threaded cover 11, which can drive multiple groups of screening components to rotate together. The gears 7 on the first screening component 13, the second screening component 14, and the third screening component 15 are meshed with the gear ring 6. The screening apertures on the multiple groups of outer screening frames 8 are the same, so that the multiple groups of screening components can screen out sand and gravel with the same particle size, and the screening apertures on the multiple groups of inner screening frames 10 are different in size, so that the sand and gravel screened on the multiple groups of inner screening frames 10 can be of different particle size grades, that is, there are multiple screening spaces inside the screening device to facilitate the simultaneous screening of sand and gravel of different particle sizes.
[0023] Specifically, the side wall of the screening frame 2 away from the servo motor 3 is hollow, and the external threaded cover 9 and the internal threaded cover 11 are arranged toward the hollow shape, which is convenient for unscrewing the external threaded cover 9 and the internal threaded cover 11 to add sand and gravel to screen the raw materials inside, and then open the servo motor 3 to drive the receiving shaft 5 to rotate, and the receiving shaft 5 drives multiple groups of outer screening frames 8 to rotate. During the rotation of the outer screening frame 8, the gear 7 is engaged with the gear ring 6, and the inner screening frame 10 is simultaneously rotated when the outer screening frame 8 rotates. The rotation causes the sand and gravel particles on the screen to move and roll continuously, thereby reducing the direct impact and wear of the particles on the screen, and improving the screening efficiency. The raw materials in the inner screening frame 10 enter the outer screening frame 8 through the aperture of the inner screening frame 10, and then the materials fall downward to the lower part of the screening frame 2 through the screening aperture of the outer screening frame 8, and then are discharged outwardly through the discharge ramp 12, so as to complete the screening of sand and gravel.
[0024] The above shows and describes the basic principle, main features and advantages of the utility model, and the standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt mature conventional means such as bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.
[0025] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A concrete sand and gravel screening device, comprising a base frame, a screening frame is fixedly connected to the base frame, a servo motor is fixedly connected to the side wall of the screening frame, and a controller is provided on the side wall of the screening frame; Features: The inner wall of the screening frame in contact with the servo motor is rotatably connected with a receiving shaft, and the receiving shaft is fixedly connected to the output shaft of the servo motor. The inner wall of the screening frame is fixedly connected with a gear ring, and the gear ring is meshed with the gear. One end of the receiving shaft is fixedly connected to the side wall of the outer screening frame, and the gear is rotatably connected to the center of the screening frame. The other end of the screening frame is threadedly connected to the external threaded cover. The screening frame is rotatably connected with an inner screening frame, and the inner screening frame is fixedly connected to the center of the gear, and the other end of the inner screening frame is threadedly connected to the internal threaded cover.
2. A concrete sand and gravel screening device according to claim 1, characterized in that: A discharge ramp is arranged at the bottom of the screening frame, and a first screening component, a second screening component and a third screening component are arranged on the receiving shaft.
3. A concrete sand and gravel screening device according to claim 2, characterized in that: The first screening assembly, the second screening assembly and the third screening assembly have the same structure and consist of gears, an outer screening frame, an outer threaded cover, an inner screening frame and an inner threaded cover. The gears on the first screening assembly, the second screening assembly and the third screening assembly are meshed with the gear ring.
4. The concrete sand and gravel screening device according to claim 3 is characterized in that: The sieve apertures on the multiple groups of outer sieve frames are of the same size, and the sieve apertures on the multiple groups of inner sieve frames are of different sizes.
5. The concrete sand and gravel screening device according to claim 4, characterized in that: The side wall of the screening frame away from the servo motor is hollow.