A civil engineering sand and gravel screening device
By designing a sand and gravel screening device for civil engineering, using vibrating screening of screening pipes and counterweights, and combining the cleaning mechanism of scrapers and scrapers, the incomplete screening and blockage caused by debris and wet sand and gravel during the sand and gravel screening process is solved, and efficient sand and gravel screening and cleaning are achieved.
Patent Information
- Application Number
- CN202421418864.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-06-20
AI Technical Summary
During the sand and gravel screening process, debris and wet sand and gravel are prone to incomplete screening and clogging of screening, which is difficult to meet different civil engineering needs.
A civil engineering sand and gravel screening device is designed, which adopts the vibration screening method of screening pipes and counterweights, and cleans up debris and wet sand and gravel in the screening pipe through the cooperation of scrapers and scrapers.
It realizes efficient screening and cleaning of sand and gravel, avoids screen clogging, and meets the needs of different civil engineering projects for sand and gravel particle size and quality.
Smart Images
Figure CN222739688U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of civil engineering mechanical equipment, in particular to a civil engineering sand and gravel screening device. Background Art
[0002] With the rapid development of industries such as construction and landscaping, the demand for sand and gravel materials is increasing. In the process of concrete preparation and landscape construction, the particle size, shape and quality of sand and gravel materials have an important impact on the quality of civil engineering. Therefore, screening sand and gravel to meet the needs of different civil engineering projects has become a necessary link in the industry;
[0003] Among them, in the process of separating sand and gravel, on the one hand, a large amount of other debris besides sand and gravel will be mixed in during the demolition of the building, such as metal objects, plastic objects, etc. On the other hand, after the demolition of the building, such as the building near the river, the humidity is high, and the sand and gravel may be mixed with water, and the sand and gravel may stick to each other inside the equipment, resulting in incomplete screening and blockage of the screen;
[0004] In view of this, we propose a civil engineering sand and gravel screening device. Utility Model Content
[0005] The utility model aims to provide a civil engineering sand and gravel screening device to solve the problems raised in the above background technology.
[0006] To achieve the above-mentioned purpose, on the one hand, the utility model provides a civil engineering sand and gravel screening device, comprising a support base, support columns for supporting vibration are arranged on the top of both sides of the support base, a screening pipe for screening sand and gravel is arranged between the support bases on both sides, a conveying roller for conveying sand and gravel is arranged between the support columns on both sides, a scraper for cleaning the screening pipe is arranged at one end of the conveying roller, a scraper bar for anti-blocking is arranged on one side of the scraper, and a counterweight block for vibrating the screening pipe is arranged at the bottom of the screening pipe, wherein:
[0007] The conveying roller is rotated, the screening tube and the counterweight are used to complete the vibration screening of the sand and gravel, and the scraper and the hanging bar are used to complete the cleaning of the wet sand and gravel.
[0008] As a preferred embodiment of the utility model, support columns are fixedly connected to the top of both sides of the support base, sliding blocks are slidably connected to the inner sides of the support columns, one end of a spring is fixedly connected to the upper and lower ends of the sliding blocks, and the other end of the spring is fixedly connected to the inner wall of the support column.
[0009] As a preferred embodiment of the utility model, a feed port is provided on the inner side of the support column, the feed port is connected to a conveying pipe, the conveying pipe is connected to a screening chamber, one side of the support column is fixedly connected to a No. 1 motor, the output end of the No. 1 motor is fixedly connected to one end of a conveying roller, the outer wall of the conveying roller is fixedly connected to a threaded plate, the other end of the conveying roller is fixedly connected to one end of a reciprocating screw rod, the other end of the reciprocating screw rod is fixedly connected to one end of a fixed rod, and the other end of the fixed rod is rotatably connected to the inner wall of the support column.
[0010] As a preferred embodiment of the utility model, the outer wall of the reciprocating screw is slidably connected to one end of a telescopic rod in the shape of a cross, the other end of the telescopic rod is fixedly connected to one side of a scraper, a scraper strip is provided on the other side of the scraper, and the outer side of the scraper is slidably connected to the outer wall of the scraper strip.
[0011] As a preferred embodiment of the utility model, the outer wall of the sliding block is fixedly connected to the No. 2 motor, the output end of the No. 2 motor is rotatably connected to one end of a rotating rod, the other end of the rotating rod is rotatably connected to the inner side of the sliding block on the other side, the outer wall of the rotating rod is fixedly connected to a counterweight block, the outer wall of the rotating rod is provided with a fixed plate, the outer wall of the rotating rod is slidably connected to the inner side of the fixed plate, and the top of the fixed plate is fixedly connected to a screening tube.
[0012] As a preferred embodiment of the utility model, sieve holes are provided on the surface of the sieve pipe, the sieve pipe is vertically connected with the conveying pipeline, and a feed discharge port is provided at the bottom of the sieve chamber.
[0013] Compared with the prior art, the utility model has the following beneficial effects:
[0014] 1. In the sand and gravel screening device, the reciprocating screw is driven by the No. 1 motor to continue to rotate in the same direction, and the telescopic rod will slide to the left and right sides. The scraper is used to scrape the inner wall of the screening tube to remove the lumps on the inner wall of the screening tube. At the same time, under the drive of the No. 2 motor, the rotating rod rotates and drives the counterweight to rotate at the same time. The fan-shaped counterweight rotates back and forth and slides slightly to produce vibration. At the same time, the fixed plate is used to drive the screening plate to vibrate together, so that the sand and gravel in the screening tube are shaken and screened to the bottom of the screening chamber, and are scraped and cleaned by the scraper and scraper strips. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is an overall three-dimensional schematic diagram of the sand and gravel screening device of the utility model;
[0016] Figure 2 It is a schematic diagram of the overall cross-section of the sand and gravel screening device of the utility model;
[0017] Figure 3 It is a three-dimensional schematic diagram of the internal details of the screening tube of the sand and gravel screening device of the utility model;
[0018] Figure 4 It is a three-dimensional schematic diagram of a cleaning device of a sand and gravel screening device of the utility model;
[0019] The meaning of each number in the figure is:
[0020] 1. Support base; 11. Support column; 111. Sliding block; 112. Spring; 2. Feed inlet; 21. Conveying pipeline; 3. Screening chamber; 31. No. 1 motor; 32. Conveying roller; 321. Threaded plate; 33. Reciprocating screw; 331. Telescopic rod; 332. Scraper; 333. Scraper strip; 34. Fixed rod; 4. No. 2 motor; 41. Rotating rod; 411. Screening tube; 42. Counterweight block; 43. Fixed plate. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.
[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0023] See also Figure 1-4 As shown, this embodiment provides a civil engineering sand and gravel screening device, including a support base 1, support columns 11 for supporting vibration are arranged on the top of both sides of the support base 1, a screening pipe 411 for screening sand and gravel is arranged between the support bases 1 on both sides, a conveying roller 32 for conveying sand and gravel is arranged between the support columns 11 on both sides, a scraper 332 for cleaning the screening pipe 411 is arranged at one end of the conveying roller 32, a scraper bar 333 for anti-blocking is arranged on one side of the scraper 332, and a counterweight block 42 for vibrating the screening pipe 411 is arranged at the bottom of the screening pipe 411, wherein:
[0024] By rotating the conveying roller 32 , the screening tube 411 and the counterweight block 42 are used to complete the vibration screening of the sand and gravel, and the scraper 332 and the hanging bar 333 are used to complete the cleaning of the wet sand and gravel.
[0025] The top of both sides of the support base 1 is fixedly connected with a support column 11, and the inner side of the support column 11 is slidably connected with a sliding block 111. The upper and lower ends of the sliding block 111 are fixedly connected with one end of a spring 112, and the other end of the spring 112 is fixedly connected to the inner wall of the support column 11. The sliding block 111 slides up and down by the pulling force of the spring 112.
[0026] The inner side of the support column 11 is provided with a feeding port 2, and the feeding port 2 is connected to a conveying pipe 21, and the conveying pipe 21 is connected to a screening chamber 3. One side of the support column 11 is fixedly connected to a No. 1 motor 31, and the output end of the No. 1 motor 31 is fixedly connected to one end of a conveying roller 32, and the outer wall of the conveying roller 32 is fixedly connected to a threaded plate 321, and the other end of the conveying roller 32 is fixedly connected to one end of a reciprocating screw rod 33, and the other end of the reciprocating screw rod 33 is fixedly connected to one end of a fixed rod 34, and the other end of the fixed rod 34 is rotatably connected to the inner wall of the support column 11, and the outer wall of the reciprocating screw rod 33 is slidably connected to one end of a telescopic rod 331 in the shape of a cross, and the other end of the telescopic rod 331 is fixedly connected to one side of a scraper 332, and a scraper strip 333 is provided on the other side of the scraper 332, and the outer side of the scraper 332 is slidably connected to the outer wall of the scraper strip 333, and the No. 1 motor 31 drives the conveying roller 32 to rotate, and at the same time drives the reciprocating screw rod 33 to rotate.
[0027] The outer wall of the sliding block 111 is fixedly connected to the No. 2 motor 4, the output end of the No. 2 motor 4 is rotatably connected to one end of the rotating rod 41, the other end of the rotating rod 41 is rotatably connected to the inner side of the sliding block 111 on the other side, the outer wall of the rotating rod 41 is fixedly connected to the counterweight 42, the outer wall of the rotating rod 41 is provided with a fixed plate 43, the outer wall of the rotating rod 41 is slidably connected to the inner side of the fixed plate 43, the top of the fixed plate 43 is fixedly connected to the screening tube 411, the driving of the No. 2 motor 4 drives the rotating rod 41 to rotate, and the counterweight 42 rotates at the same time.
[0028] The surface of the screening tube 411 is provided with screening holes, the screening tube 411 is vertically connected with the conveying pipeline 21 , and a discharge port is provided at the bottom of the screening chamber 3 .
[0029] How it works
[0030] like Figure 3-4As shown, when it is necessary to prevent the sand and gravel from hanging on the wall during the screening process, the sand and gravel are fed into the feeding port 2 and fall into the conveying pipe 21, and are continuously conveyed to the screening pipe 411 through the threaded rod 321 in the conveying pipe 21. At the same time, under the drive of the No. 1 motor 31, the reciprocating screw rod 33 rotates, and at the same time drives the telescopic rod 331 to slide left and right on the outside of the reciprocating screw rod 33. When sliding to the leftmost end of the reciprocating screw rod 33, the motor drives the reciprocating screw rod 33 to continue to rotate in the same direction, and the telescopic rod 331 will continue to slide to the right, and the scraper 332 is used to scrape the inner wall of the screening pipe 411 to scrape off the inner wall of the screening pipe 411. At the same time, the No. 2 motor Driven by the machine 4, the rotating rod 41 rotates and drives the counterweight block 42 to rotate at the same time. Because the shape of the counterweight block 42 is fan-shaped, when the fan-shaped counterweight block 42 rotates from top to bottom, it is affected by gravity and drives the rotating rod 41 and the sliding block 111 to slide downward, and when the counterweight block 42 rotates from bottom to top, it is affected by the recoil force and slides upward. From then on, the slight sliding back and forth produces vibration, and the fixed plate 43 is used to drive the screening plate 411 to vibrate together, so that the sand and gravel in the screening tube 411 are shaken and screened to the bottom of the screening chamber 3, and are scraped and cleaned by the scraper 332 and the scraper bar 333.
[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.
Claims
1. A civil engineering sand and gravel screening device, comprising a support base (1), characterized in that: Support columns (11) for supporting vibration are arranged at the top of both sides of the support base (1); a screening pipe (411) for screening sand and gravel is arranged between the support bases (1) on both sides; a conveying roller (32) for conveying sand and gravel is arranged between the support columns (11) on both sides; a scraper (332) for cleaning the screening pipe (411) is arranged at one end of the conveying roller (32); a scraper bar (333) for preventing clogging is arranged at one side of the scraper (332); a counterweight (42) for vibrating the screening pipe (411) is arranged at the bottom of the screening pipe (411), wherein: The conveying roller (32) rotates, the screening tube (411) and the counterweight (42) are used to complete the vibration screening of the sand and gravel, and the scraper (332) and the scraper bar (333) are used to complete the cleaning of the wet sand and gravel.
2. A civil engineering sand and gravel screening device according to claim 1, characterized in that: The tops of both sides of the support base (1) are fixedly connected to support columns (11), the inner sides of the support columns (11) are slidably connected to sliding blocks (111), the upper and lower ends of the sliding blocks (111) are fixedly connected to one end of a spring (112), and the other end of the spring (112) is fixedly connected to the inner wall of the support column (11).
3. A civil engineering sand and gravel screening device according to claim 2, characterized in that: A feed port (2) is provided on the inner side of the support column (11), the feed port (2) is connected to a conveying pipe (21), the conveying pipe (21) is connected to a screening chamber (3), one side of the support column (11) is fixedly connected to a No. 1 motor (31), the output end of the No. 1 motor (31) is fixedly connected to one end of a conveying roller (32), the outer wall of the conveying roller (32) is fixedly connected to a threaded plate (321), the other end of the conveying roller (32) is fixedly connected to one end of a reciprocating screw rod (33), the other end of the reciprocating screw rod (33) is fixedly connected to one end of a fixed rod (34), and the other end of the fixed rod (34) is rotatably connected to the inner wall of the support column (11).
4. A civil engineering sand and gravel screening device according to claim 3, characterized in that: The outer wall of the reciprocating screw rod (33) is slidably connected to one end of a telescopic rod (331) in the shape of a cross, the other end of the telescopic rod (331) is fixedly connected to one side of a scraper (332), the other side of the scraper (332) is provided with a scraper strip (333), and the outer side of the scraper (332) is slidably connected to the outer wall of the scraper strip (333).
5. A civil engineering sand and gravel screening device according to claim 4, characterized in that: The outer wall of the sliding block (111) is fixedly connected to a No. 2 motor (4); the output end of the No. 2 motor (4) is rotatably connected to one end of a rotating rod (41); the other end of the rotating rod (41) is rotatably connected to the inner side of the sliding block (111) on the other side; the outer wall of the rotating rod (41) is fixedly connected to a counterweight block (42); a fixing plate (43) is provided on the outer wall of the rotating rod (41); the outer wall of the rotating rod (41) is slidably connected to the inner side of the fixing plate (43); and the top of the fixing plate (43) is fixedly connected to a screening tube (411).
6. A civil engineering sand and gravel screening device according to claim 5, characterized in that: The surface of the screening tube (411) is provided with screening holes, the screening tube (411) is in communication with the conveying pipeline (21), and the bottom of the screening chamber (3) is provided with a discharge port.