Sand screening machine for constructional engineering

Abstract

The utility model relates to the technical field of constructional engineering sand screening, in particular to a constructional engineering sand screening machine which comprises a screening box, a feeding pipe is fixedly installed on the top face of the screening box in a penetrating mode, a dispersing mechanism is arranged in the screening box, a sand screening mechanism is arranged below the dispersing mechanism, and the dispersing mechanism comprises a dispersing part and a power part. The dispersing mechanism is used for uniformly dispersing sand, the sand screening mechanism comprises a sand screening part and a connecting part, and the sand screening mechanism is used for screening the sand. A motor is started to drive a rotating shaft and a rotating plate to rotate, the rotating plate drives a connecting shaft and a moving block to do circular motion, the moving block slides in a fixed frame and drives the fixed frame to do front-back reciprocating motion, the fixed frame drives a moving pipe to do front-back reciprocating motion, and meanwhile when sand is added, sand flows to drive a plurality of stirring blades to rotate; and therefore, the added sand can uniformly flow into the filter plate, the filter plate can comprehensively screen the sand, the utilization rate of the filter plate is increased, and the sand screening efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of sand screening for construction projects, in particular to a sand screening machine for construction projects. Background Art

[0002] Sand screening machine, also known as dry land sand screening ship, sand and gravel separator, is a sand and gravel separation equipment suitable for rivers, reservoirs, and coal yards. It consists of a hull, a frame, a reducer, a conveyor belt, a rotary screen, an engine or a motor. This machine has a simple structure, is economical and easy to operate. It is divided into drum sand screening machine, water-washing drum sand screening machine, vibrating screen sand screening machine, etc.

[0003] The Chinese patent publication number CN212168108U discloses a sand screening machine for construction projects, which belongs to the technical field of construction equipment. The sand screening machine for construction projects uses a vibration motor fixedly connected under the sand screening box to start the vibration motor to make the sand screening box vibrate. The device works simultaneously with the vibration motor and the gap mechanism, so that the screen sand screening efficiency is higher and the sand and stone separation is more uniform.

[0004] However, there are still the following disadvantages: the device directly adds sand to the screen through the feed port. Since the sand is directly introduced, the sand is easily accumulated in the middle part of the screen for filtration, resulting in too little sand on the edge of the screen, thereby reducing the utilization rate of the screen and the efficiency of sand screening.

[0005] Therefore, a sand screening machine for construction engineering is proposed. Utility Model Content

[0006] The purpose of the utility model is to provide a sand screening machine for construction engineering to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sand screening machine for construction engineering, comprising a screening box, a supporting leg fixedly installed on the bottom surface of the screening box, a first discharge port and a second discharge port arranged on the right side of the screening box, a feed pipe fixedly installed through the top surface of the screening box, a dispersion mechanism arranged inside the screening box, and a sand screening mechanism arranged below the dispersion mechanism;

[0008] The dispersing mechanism comprises a dispersing part and a power part, and the dispersing mechanism is used to disperse the sand evenly;

[0009] The sand screening mechanism comprises a sand screening part and a connecting part, and the sand screening mechanism is used for screening sand.

[0010] Preferably, the dispersion part includes a bellows fixedly installed at the lower end of the feed pipe, a movable tube is fixedly installed at the lower end of the bellows, two fixed shafts are fixedly installed on the left and right inner walls of the movable tube, a plurality of stirring blades are rotatably installed on the outer walls of the two fixed shafts, and a plurality of through holes are respectively provided on the top surfaces of the plurality of stirring blades.

[0011] Preferably, two fixed sleeves are fixedly installed on the bottom surface of the movable tube, and sliding rods are slidably installed on the inner walls of the two fixed sleeves respectively. The two ends of the two sliding rods are fixedly connected to the front and rear inner walls of the screening box respectively, and a fixed frame is fixedly installed on the left side of the movable tube.

[0012] Preferably, a moving block is slidably connected to the inner wall of the fixed frame, a connecting shaft is rotatably connected to the left side of the moving block, and a rotating plate is fixedly installed on the left end of the connecting shaft.

[0013] Preferably, the power unit includes a motor fixedly mounted on the left side of the screening box, a rotating shaft is fixedly mounted on the output end of the motor, and the right end of the rotating shaft rotates through the left side of the screening box through the first bearing seat and is fixedly connected to the left side of the rotating plate.

[0014] Preferably, the sand screening part comprises a filter plate, the bottom surface of the right end of the filter plate is rotatably connected to the right inner wall of the screening box through a hinge, and the top surface of the right end of the filter plate is flush with the inner wall of the lower end of the second discharge port.

[0015] Preferably, the connecting part includes two tension springs fixedly installed on the top surface of the left end of the filter plate, the upper ends of the two tension springs are respectively fixedly connected to fixed plates, the left sides of the two fixed plates are fixedly connected to the left inner wall of the screening box, the outer wall of the rotating shaft is fixedly sleeved with an eccentric wheel, and the outer wall of the eccentric wheel is slidably connected to the top surface of the filter plate.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model starts the motor to drive the rotating shaft and the rotating plate to rotate, the rotating plate drives the connecting shaft and the moving block to do circular motion, the moving block slides in the fixed frame and drives the fixed frame to move back and forth, the fixed frame drives the moving tube to move back and forth, and when sand is added at the same time, the flow of sand drives the multiple stirring blades to rotate, so that the added sand can flow into the filter plate evenly, the filter plate can comprehensively screen the sand, thereby improving the utilization rate of the filter plate and the efficiency of sand screening.

[0018] The eccentric wheel is driven to rotate by the rotating shaft. At the same time, the left end of the filter plate vibrates up and down under the joint action of the tension spring and the fixed plate, so that the sand on the filter plate can be vibrated and screened off conveniently and quickly, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings:

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the structural section of the utility model;

[0022] Figure 3 It is a schematic diagram of the side structure section of the utility model;

[0023] Figure 4 This is a schematic diagram of the internal structure of the mobile tube of the utility model;

[0024] Figure 5 For this utility model Figure 3 Schematic diagram of the mechanism at center A.

[0025] In the figure: 1. screening box; 101. supporting leg; 102. first discharge port; 103. feeding pipe; 104. second discharge port; 2. dispersion mechanism; 201. bellows; 202. moving pipe; 203. fixed shaft; 204. stirring blade; 205. through hole; 206. fixed sleeve; 207. sliding rod; 208. fixed frame; 209. moving block; 210. connecting shaft; 211. rotating plate; 212. rotating shaft; 213. motor; 3. sand screening mechanism; 301. filter plate; 302. tension spring; 303. fixed plate; 304. eccentric wheel. DETAILED DESCRIPTION

[0026] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in combination with the accompanying drawings by way of examples.

[0027] It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0028] In addition, in the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" 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.

[0029] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. However, if it is indicated as a direct connection, it means that the two connected bodies are not connected through an intermediate structure, but are connected to form a whole only through a connecting structure. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0030] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0031] Embodiment 1

[0032] See also Figures 1 to 5 The utility model provides a technical solution: a sand screening machine for construction engineering, comprising a screening box 1, a supporting leg 101 is fixedly installed on the bottom surface of the screening box 1, a first discharge port 102 and a second discharge port 104 are arranged on the right side of the screening box 1, a feed pipe 103 is fixedly installed on the top surface of the screening box 1, a dispersion mechanism 2 is arranged inside the screening box 1, and a sand screening mechanism 3 is arranged below the dispersion mechanism 2;

[0033] The dispersion mechanism 2 includes a dispersion part and a power part. The dispersion mechanism 2 is used to disperse the sand evenly. The dispersion part includes a bellows 201 fixedly installed at the lower end of the feed pipe 103. A moving pipe 202 is fixedly installed at the lower end of the bellows 201. Two fixed shafts 203 are fixedly installed on the left and right inner walls of the moving pipe 202. Multiple stirring blades 204 are rotatably installed on the outer walls of the two fixed shafts 203. Multiple through holes 205 are respectively provided on the top surfaces of the multiple stirring blades 204. Two fixed sleeves 206 are fixedly installed on the bottom surface of the moving pipe 202. Slide rods 206 are slidably installed on the inner walls of the two fixed sleeves 206. 07, the two ends of the two sliding rods 207 are respectively fixedly connected to the front and rear inner walls of the screening box 1, a fixed frame 208 is fixedly installed on the left side of the moving tube 202, and a moving block 209 is slidably connected to the inner wall of the fixed frame 208. The left side of the moving block 209 is rotatably connected to a connecting shaft 210, and a rotating plate 211 is fixedly installed on the left end of the connecting shaft 210. The power unit includes a motor 213 fixedly installed on the left side of the screening box 1, and a rotating shaft 212 is fixedly installed on the output end of the motor 213. The right end of the rotating shaft 212 rotates through the first bearing seat to penetrate the left side of the screening box 1 and is fixedly connected to the left side of the rotating plate 211.

[0034] By turning on the motor 213, the rotating shaft 212 and the rotating plate 211 are driven to rotate, and the rotating plate 211 drives the connecting shaft 210 and the moving block 209 to make a circular motion. The moving block 209 slides in the fixed frame 208 and drives the fixed frame 208 to move back and forth. The fixed frame 208 drives the moving tube 202 to move back and forth. At the same time, when sand is added, the flow of sand drives the multiple stirring blades 204 to rotate, so that the added sand can flow evenly onto the filter plate 301. The filter plate 301 can comprehensively screen the sand, thereby improving the utilization rate of the filter plate 301 and improving the efficiency of sand screening.

[0035] Embodiment 2

[0036] On the basis of Example 1, the sand screening mechanism 3 includes a sand screening part and a connecting part. The sand screening mechanism 3 is used to screen sand. The sand screening part includes a filter plate 301. The bottom surface of the right end of the filter plate 301 is rotatably connected to the right inner wall of the screening box 1 through a hinge. The top surface of the right end of the filter plate 301 is flush with the inner wall of the lower end of the second discharge port 104. The connecting part includes two tension springs 302 fixedly installed on the top surface of the left end of the filter plate 301. The upper ends of the two tension springs 302 are respectively fixedly connected to fixed plates 303. The left sides of the two fixed plates 303 are fixedly connected to the left inner wall of the screening box 1. The outer wall of the rotating shaft 212 is fixedly sleeved with an eccentric wheel 304, and the outer wall of the eccentric wheel 304 is slidably connected to the top surface of the filter plate 301.

[0037] The eccentric wheel 304 is driven to rotate by the rotating shaft 212, and the tension spring 302 and the fixing plate 303 work together to make the left end of the filter plate 301 vibrate up and down, thereby conveniently and quickly vibrating and filtering out the sand on the filter plate 301, thereby improving work efficiency.

[0038] When the utility model is in use, the motor 213 is turned on, sand is added from the feeding pipe 103, the sand flows to the moving pipe 202 through the corrugated pipe 201, the motor 213 drives the rotating shaft 212 and the rotating plate 211 to rotate, the rotating plate 211 drives the connecting shaft 210 and the moving block 209 to make a circular motion, the moving block 209 slides in the fixed frame 208 and drives the fixed frame 208 to move back and forth, the fixed frame 208 drives the moving pipe 202 to move back and forth, and when sand is added at the same time, the flow of sand drives the multiple stirring blades 204 to rotate, thereby making the adding The sand that enters can flow evenly onto the filter plate 301, and the filter plate 301 can screen the sand comprehensively, thereby improving the utilization rate of the filter plate 301 and the efficiency of sand screening. At the same time, the rotating shaft 212 drives the eccentric wheel 304 to rotate, and under the joint action of the tension spring 302 and the fixed plate 303, the left end of the filter plate 301 vibrates up and down reciprocatingly, so that the sand on the filter plate 301 can be vibrated and screened off conveniently and quickly, thereby improving work efficiency. The screened large-particle gravel is discharged from the second discharge port 104, and the screened fine sand is discharged from the first discharge port 102.

[0039] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0040] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A sand screening machine for construction engineering, comprising a screening box (1), characterized in that: The bottom surface of the screening box (1) is fixedly provided with a support leg (101); the right side surface of the screening box (1) is provided with a first discharge port (102) and a second discharge port (104); the top surface of the screening box (1) is fixedly provided with a feed pipe (103); a dispersion mechanism (2) is provided inside the screening box (1); and a sand screening mechanism (3) is provided below the dispersion mechanism (2); The dispersion mechanism (2) comprises a dispersion part and a power part. The dispersion mechanism (2) is used to disperse the sand evenly. The dispersion part comprises a bellows (201) fixedly mounted on the lower end of the feed pipe (103). A moving pipe (202) is fixedly mounted on the lower end of the bellows (201). Two fixed shafts (203) are fixedly mounted on the left and right inner walls of the moving pipe (202). A plurality of stirring blades (204) are rotatably mounted on the outer walls of the two fixed shafts (203). The top surfaces of the plurality of stirring blades (204) are respectively provided with a plurality of through holes (205). The sand screening mechanism (3) comprises a sand screening part and a connecting part, and the sand screening mechanism (3) is used to screen sand.

2. A sand screening machine for construction engineering according to claim 1, characterized in that: Two fixed sleeves (206) are fixedly installed on the bottom surface of the movable tube (202), and sliding rods (207) are slidably installed on the inner walls of the two fixed sleeves (206). The two ends of the two sliding rods (207) are fixedly connected to the front and rear inner walls of the screening box (1), respectively. A fixed frame (208) is fixedly installed on the left side of the movable tube (202).

3. A sand screening machine for construction engineering according to claim 2, characterized in that: The inner wall of the fixed frame (208) is slidably connected to a moving block (209), the left side of the moving block (209) is rotatably connected to a connecting shaft (210), and a rotating plate (211) is fixedly installed on the left end of the connecting shaft (210).

4. A sand screening machine for construction engineering according to claim 3, characterized in that: The power unit comprises a motor (213) fixedly mounted on the left side of the screening box (1); a rotating shaft (212) is fixedly mounted on the output end of the motor (213); the right end of the rotating shaft (212) rotates through the left side of the screening box (1) through a first bearing seat and is fixedly connected to the left side of the rotating plate (211).

5. A sand screening machine for construction engineering according to claim 4, characterized in that: The sand screening section comprises a filter plate (301), the bottom surface of the right end of the filter plate (301) is rotatably connected to the right inner wall of the screening box (1) via a hinge, and the top surface of the right end of the filter plate (301) is flush with the inner wall of the lower end of the second discharge port (104).

6. A sand screening machine for construction engineering according to claim 5, characterized in that: The connecting portion comprises two tension springs (302) fixedly mounted on the top surface of the left end of the filter plate (301); the upper ends of the two tension springs (302) are respectively fixedly connected to fixed plates (303); the left sides of the two fixed plates (303) are fixedly connected to the left inner wall of the screening box (1); an eccentric wheel (304) is fixedly sleeved on the outer wall of the rotating shaft (212); and the outer wall of the eccentric wheel (304) is slidably connected to the top surface of the filter plate (301).

Images