Automatic dredging device for sand silo discharge pipe

Abstract

The utility model discloses an automatic dredging device for a sand silo discharge pipe, which comprises an accommodating pipe, the accommodating pipe is communicated with the discharge pipe, a rotating mechanism and a lifting mechanism are mounted in the accommodating pipe, the rotating mechanism is connected with a spline shaft, the spline shaft is sleeved with a spline housing, and the outer ring of the spline housing is rotatably sleeved with a first shielding cover and a second shielding cover. The spline sleeve can be pushed to move on the outer ring of the spline shaft through the lifting mechanism, and the spline shaft and the spline sleeve are matched so that the spline sleeve can drive the elastic scraping plate to rotate in the moving process; in the rotating process, the elastic scraping plate can scrape off foreign matter attached to the inner wall of the discharging pipe, when the shielding cover arrives at the joint of the containing pipe and the discharging pipe, the foreign matter can slide to the outside of the tank body, the downtime can be shortened while the dredging efficiency is improved, and the safety risk of personnel can be reduced.

Description

Technical Field

[0001] This utility model belongs to the field of discharge pipe unblocking technology, and in particular relates to an automatic unblocking device for sand bin discharge pipe. Background Technology

[0002] Sand silo discharge pipes are widely used in construction, mining, concrete production, and chemical industries, primarily for storing and transporting sand, granular, or powdery materials. However, during long-term operation, the discharge pipes are prone to blockage due to variations in material moisture, viscosity, particle size, or environmental temperature changes, leading to decreased production efficiency, increased maintenance costs, and even safety hazards.

[0003] Traditional manual or semi-automatic dredging methods suffer from drawbacks such as low efficiency, long downtime, and high personnel safety risks. To address these issues, we propose an automatic dredging device for the sand silo discharge pipe. Utility Model Content

[0004] This utility model addresses the problems in the prior art by proposing the following technical solution:

[0005] An automatic unblocking device for a sand silo discharge pipe includes a receiving pipe connected to a discharge pipe. The receiving pipe has a rotating mechanism and a lifting mechanism installed inside. The rotating mechanism is connected to a spline shaft, and a spline sleeve is fitted onto the spline shaft. A first cover and a second cover are rotatably fitted onto the outer ring of the spline sleeve. An elastic scraper fixedly connected to the spline sleeve is provided between the first cover and the second cover. The lifting mechanism is connected to the first cover.

[0006] As a preferred embodiment of the above technical solution, the diameters of both the first and second shielding covers are adapted to the diameter of the receiving tube and are smaller than the diameter of the discharge tube.

[0007] As a preferred embodiment of the above technical solution, the rotating mechanism includes a motor, the output end of which is fixedly connected to the end of the spline shaft.

[0008] As a preferred embodiment of the above technical solution, the motor is fitted with a sealing cover, and the sealing cover is threadedly connected to a receiving pipe.

[0009] As a preferred embodiment of the above technical solution, the lifting mechanism includes a bearing frame fixed on the inner wall of the receiving tube, the bearing frame being fixedly connected to a threaded sleeve, the threaded sleeve being threadedly connected to a lead screw, one end of the lead screw being fixedly connected to a shielding cover, and the other end penetrating through a sealing cover.

[0010] As a preferred embodiment of the above technical solution, the outer ring of the threaded sleeve is fixedly fitted with a pulley one, and the outer ring of the spline shaft is fixedly fitted with a pulley two, with a belt connecting the pulley one and the pulley two.

[0011] The beneficial effects of this utility model are as follows:

[0012] 1. This utility model uses a lifting mechanism to push the spline sleeve to move on the outer ring of the spline shaft. The spline shaft and the spline sleeve work together so that the spline sleeve can drive the elastic scraper to rotate during the movement. When the second shield and the elastic scraper come into the inside of the discharge pipe, the rotating elastic scraper will scrape off the foreign objects attached to the inner wall of the discharge pipe. When the first shield comes to the connection between the receiving pipe and the discharge pipe, the foreign objects will slide to the outside of the tank. This improves the unblocking efficiency, shortens the downtime, and reduces personnel safety risks. Attached Figure Description

[0013] Figure 1 The diagram shown is a structural schematic of an automatic unblocking device for a sand bin discharge pipe in one embodiment.

[0014] Figure 2 The diagram shown is a structural schematic of the rotating mechanism and the lifting mechanism in the embodiment.

[0015] Explanation of reference numerals in the attached figures:

[0016] 10. Receiving tube; 11. Sealing cover; 20. Motor; 21. Splined shaft; 22. Splined sleeve; 23. First shielding cover; 24. Elastic scraper; 25. Second shielding cover; 30. Bearing bracket; 31. Threaded sleeve; 32. Lead screw; 33. First pulley; 34. Second pulley; 35. Belt. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0018] Example

[0019] like Figure 1 and Figure 2 As shown, an automatic unblocking device for a sand silo discharge pipe includes a receiving pipe 10, which is connected to the discharge pipe. The receiving pipe 10 has a rotating mechanism and a lifting mechanism installed inside. The rotating mechanism is connected to a spline shaft 21, and a spline sleeve 22 is fitted on the spline shaft 21. The outer ring of the spline sleeve 22 is rotatably fitted with a first cover 23 and a second cover 25. An elastic scraper 24 fixedly connected to the spline sleeve 22 is provided between the first cover 23 and the second cover 25. The lifting mechanism is connected to the first cover 23.

[0020] Specifically, the lifting mechanism can push the spline sleeve 22 to move on the outer ring of the spline shaft 21. The spline shaft 21 and the spline sleeve 22 cooperate so that the spline sleeve 22 can drive the elastic scraper 24 to rotate during the movement. When the second shielding cover 25 and the elastic scraper 24 come into the inside of the discharge pipe, the elastic scraper 24 will scrape off the foreign objects attached to the inner wall of the discharge pipe during the rotation process. When the first shielding cover 23 comes to the connection between the receiving pipe 10 and the discharge pipe, the foreign objects will slide to the outside of the tank, which can improve the unblocking efficiency, shorten the downtime, and reduce personnel safety risks.

[0021] like Figure 1 As shown, the diameters of both the first shielding cover 23 and the second shielding cover 25 are adapted to the diameter of the receiving tube 10 and are smaller than the diameter of the discharge tube.

[0022] Specifically, when both the first cover 23 and the second cover 25 are located inside the receiving tube 10, the second cover 25 will be at the connection between the receiving tube 10 and the discharge tube. At this time, the material will flow inside the discharge tube. When the first cover 23 and the second cover 25 move into the discharge tube, the first cover 23 can only reach the connection between the receiving tube 10 and the discharge tube at most.

[0023] like Figure 1 and Figure 2 As shown, the rotating mechanism includes a motor 20, and the output end of the motor 20 is fixedly connected to the end of the spline shaft 21.

[0024] Specifically, the motor 20 drives the spline shaft 21 to rotate, and the spline shaft 21 drives the spline sleeve 22 to rotate.

[0025] like Figure 2 As shown, the motor 20 is snapped with a sealing cover 11, and the sealing cover 11 is threadedly connected to the receiving tube 10.

[0026] Specifically, by separating the sealing cap 11 from the receiving tube 10, the internal structure of the receiving tube 10 can be replaced and maintained.

[0027] like Figure 2 As shown, the lifting mechanism includes a bearing frame 30 fixed on the inner wall of the receiving tube 10. The bearing frame 30 is fixedly connected to a threaded sleeve 31. The threaded sleeve 31 is threadedly connected to a lead screw 32. One end of the lead screw 32 is fixedly connected to the cover 23, and the other end passes through the sealing cover 11.

[0028] Specifically, through the threaded engagement of the threaded sleeve 31 and the lead screw 32, when the threaded sleeve 31 is rotated, the lead screw 32 will push the cover 23 to move the spline sleeve 22.

[0029] like Figure 2As shown, the outer ring of the threaded sleeve 31 is fixedly fitted with a pulley 33, and the outer ring of the spline shaft 21 is fixedly fitted with a pulley 34. The pulley 33 and the pulley 34 are connected by a belt 35.

[0030] Specifically, when the spline shaft 21 rotates, it drives the threaded sleeve 31 to rotate through the transmission cooperation of pulley 33, pulley 34 and belt 35.

[0031] Working principle: The motor 20 drives the spline shaft 21 to rotate, which in turn drives the spline sleeve 22 to rotate. When the spline shaft 21 rotates, the transmission between the pulley 33, the pulley 34 and the belt 35 drives the threaded sleeve 31 to rotate. Through the threaded engagement between the threaded sleeve 31 and the lead screw 32, when the threaded sleeve 31 rotates, the lead screw 32 pushes the shield 23 to move the spline sleeve 22. The engagement between the spline shaft 21 and the spline sleeve 22 allows the spline sleeve 22 to rotate during its movement. When the shield 25 and the elastic scraper 24 reach the inside of the discharge pipe, the rotating elastic scraper 24 scrapes off the foreign objects attached to the inner wall of the discharge pipe. When the shield 23 reaches the connection between the receiving pipe 10 and the discharge pipe, the foreign objects slide to the outside of the tank, improving the unblocking efficiency, shortening downtime, and reducing personnel safety risks.

[0032] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. An automatic unblocking device for a sand silo discharge pipe, comprising a receiving pipe (10), characterized in that: The receiving tube (10) is connected to the discharge tube, and a rotating mechanism and a lifting mechanism are installed inside the receiving tube (10). The rotating mechanism is connected to a spline shaft (21). The spline shaft (21) is fitted with a spline sleeve (22). The outer ring of the spline sleeve (22) is fitted with a first shielding cover (23) and a second shielding cover (25). An elastic scraper (24) fixedly connected to the spline sleeve (22) is provided between the first shielding cover (23) and the second shielding cover (25). The lifting mechanism is connected to the first shielding cover (23).

2. The automatic unblocking device for the discharge pipe of a sand silo according to claim 1, characterized in that, The diameters of the first shielding cover (23) and the second shielding cover (25) are both adapted to the diameter of the receiving tube (10) and smaller than the diameter of the discharge tube.

3. The automatic unblocking device for the discharge pipe of a sand silo according to claim 1, characterized in that, The rotating mechanism includes a motor (20), the output end of which is fixedly connected to the end of a spline shaft (21).

4. The automatic unblocking device for the discharge pipe of a sand silo according to claim 3, characterized in that, The motor (20) is snapped with a sealing cover (11), which is threadedly connected to the receiving tube (10).

5. The automatic unblocking device for the discharge pipe of a sand silo according to claim 1, characterized in that, The lifting mechanism includes a bearing frame (30) fixed on the inner wall of the receiving tube (10), the bearing frame (30) is fixedly connected to a threaded sleeve (31), the threaded sleeve (31) is threadedly connected to a lead screw (32), one end of the lead screw (32) is fixedly connected to a shielding cover (23), and the other end passes through a sealing cover (11).

6. The automatic unblocking device for the discharge pipe of a sand silo according to claim 5, characterized in that, The outer ring of the threaded sleeve (31) is fixedly fitted with a pulley one (33), and the outer ring of the spline shaft (21) is fixedly fitted with a pulley two (34). The pulley one (33) and the pulley two (34) are connected by a belt (35).

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