Shaftless screw conveyor

Abstract

The utility model discloses a shaftless screw conveyer, which relates to the technical field of sludge conveying and mainly comprises key components such as a U-shaped groove, a speed reducer, a shaftless screw part, a feed port, a discharge port and adjusting support legs. Wherein an auxiliary feeding mechanism is arranged in the feeding hole, and consists of a rotating rod driven by a first motor, a supporting plate and a leaking plate on the supporting plate, so that uniform distribution and effective dispersion of sludge are realized, and fixed-point accumulation and blockage risks are avoided; a crushing blade is arranged outside the shaftless spiral piece, large sludge particles are crushed in the conveying process, and the uniformity and conveying efficiency of the sludge are improved; the design of the adjusting supporting legs allows a user to adjust the height and the inclination angle of the U-shaped groove according to the working environment and sludge characteristics, and the stability and the adaptability of the conveyor are ensured; a valve driven by a second motor is arranged at the discharge hole, so that automatic control and flow control of sludge discharge are realized, and meanwhile, the sealing property and the safety of the discharge hole are ensured by the design of a top cover and a front end plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to sludge conveying technical field more specifically, it relates to a kind of shaftless screw conveyor. BACKGROUND

[0002] Sludge treatment, as an important link in environmental protection field, covers a series of harmless processing processes such as sludge concentration, conditioning, dewatering, stabilization, drying and incineration.In this treatment process, efficient and stable sludge conveying is crucial, and is directly related to the operation efficiency and stability of the entire treatment system.

[0003] The current market, represented by patent number CN213621873U, a kind of shaftless screw conveyor, by introducing the setting of first spiral piece and second spiral piece, the processing capacity of large sludge is enhanced, and the adjustable nature of conveying height is realized by the setting of support column, gearbox bottom, hydraulic column and fixed block, but there are still some places that can be further improved:

[0004] The processing capacity of large sludge still needs to be improved: although the design of first spiral piece and second spiral piece enhances the processing capacity to some extent, when facing particularly hard or huge sludge block, there is still the risk of incomplete crushing and low conveying efficiency, which can easily cause frequent blockage of conveyor and affect the overall processing efficiency.

[0005] Energy consumption and efficiency need to be further optimized: under the condition of long-time continuous work, the feeding port is too small, and the conveying efficiency is affected by many factors such as sludge properties, conveying distance, etc., the conveying efficiency is slow, easy to block, not easy to clean, and the traditional conveying is fixed-point conveying, sludge is easy to block in one place, not easy to disperse sludge.

[0006] The equipment maintenance complexity is higher: due to the relatively complex structure of the equipment, especially the design involving multiple movable parts and connection points, daily maintenance and maintenance become relatively cumbersome.This not only increases the maintenance cost, but also easily leads to performance degradation or frequent failures due to improper maintenance.

[0007] Therefore, in order to solve the above technical problems, a kind of shaftless screw conveyor is proposed. UTILITY MODEL CONTENT

[0008] To achieve the above object, the utility model provides the following technical scheme: A shaftless screw conveyor, including a U groove, and the reduction gear of installation in one end of the U groove, the output shaft flange of reduction gear is connected with one end of shaftless screw part, the shaftless screw part is arranged in the inside of U groove, is used for driving the shaftless screw part rotation conveying sludge. The other end of U groove is provided with a discharge gate for the discharge of sludge, the U groove top is provided with a feed inlet for the input of sludge, the feed inlet is provided with an auxiliary feeding mechanism, is used for optimizing the feeding process of sludge, prevents the jam, the feed inlet is provided with two on the U groove symmetry, improves the feeding efficiency, the side of U groove is provided with four groups of adjusting legs, is used for adjusting the height and stability of U groove.

[0009] Preferably, the auxiliary feeding mechanism comprises: a first motor, a rotating rod, a support plate and a gap plate; the first motor is fixedly connected to one side of the feed inlet, the support plate is connected with rotating rods on both sides, one side of the support plate is connected with the output shaft of the first motor through the rotating rod penetrating the feed inlet, and the other side of the support plate is rotatably connected to the feed inlet through the rotating rod. The first motor drives the rotating rod to swing left and right, thereby driving the support plate to swing left and right, the uniform distribution of sludge reduces the risk of blockage during conveying, and the utilization efficiency of the shaftless screw part is improved.

[0010] Preferably, the support plate is linearly arrayed and fixedly connected with a plurality of gap plates, and the gap plates are obliquely arranged.

[0011] When the first motor drives the rotating rod to swing to the left side, the support plate swings to the left side, and the sludge enters through the feed inlet. At this time, the angle between the gap plate and the horizontal plane is close to a vertical angle, and the sludge can directly enter the U-shaped groove below through the gap between the gap plates and be taken away by the shaftless screw part. When the first motor drives the rotating rod to swing to the right side, the support plate swings to the right side, and the sludge enters through the feed inlet. At this time, the angle between the gap plate and the horizontal plane is close to a parallel angle, and the sludge slides down through the stepped plane formed by each continuous gap plate and enters the U-shaped groove below the right side and is taken away by the shaftless screw part. In this way, the sludge is evenly distributed, the utilization efficiency of the shaftless screw part is improved, and the design of the gap plate also plays a filtering role to screen and block the impurities in the sludge.

[0012] Preferably, the adjustment leg includes an adjustment leg sleeve, an adjustment leg rod, a first fixing bolt, and a second fixing bolt; the upper end of the adjustment leg sleeve is fixed to the side of the U-shaped groove by the second fixing bolt, a number of bolt holes are evenly arranged on both sides of the adjustment leg sleeve, and bolt holes corresponding to the first fixing bolts are provided on both sides of the top of the adjustment leg rod. The adjustment leg rod is sleeved in the adjustment leg sleeve, and the first fixing bolt is inserted into the bolt holes corresponding to the adjustment leg sleeve and the adjustment leg rod to fix the adjustment leg sleeve to the adjustment leg rod. The adjustment leg sleeves on both sides of the U-shaped groove are connected by a connecting rod. The design of the adjustment leg makes the height and inclination angle of the U-shaped groove adjustable to adapt to different working environments and sludge characteristics.

[0013] Preferably, the discharge port includes a second motor, a valve, a top cover, and a front end plate. The second motor is mounted on the side of the U-shaped groove, the valve is rotatably mounted within the discharge port, the output shaft of the second motor extends through the U-shaped groove and connects to the valve, the top cover is mounted on top of the discharge port, and the front end plate is positioned to one side of the discharge port, with the top end of the front end plate hinged to the top cover. The second motor controls the start and stop and rotation speed of the valve, achieving automated control of the discharge port and flow rate control of sludge discharge. The design of the top cover and front end plate ensures the sealing and safety of the discharge port.

[0014] Preferably, the valve is spherical in structure, with a number of blades evenly distributed on the valve, the arc-shaped structure of the blades matching the arc-shaped structure of the bottom of the U-shaped groove. This valve design can more effectively control the outflow of sludge, while reducing clogging and wear of sludge during the discharge process.

[0015] Preferably, the shaftless screw is provided with a crushing blade on the outside. The design of the crushing blade enables the shaftless screw to crush large particles in the sludge to a certain extent while conveying the sludge, thereby improving the conveying efficiency and the uniformity of the sludge.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. By setting up an auxiliary feeding mechanism, especially the rotating rod and support plate driven by the first motor, and the leakage plate set on the support plate, the sludge is evenly distributed and effectively dispersed, avoiding fixed-point accumulation, reducing the risk of blockage, and improving feeding efficiency;

[0018] The crushing blade design set on the outside of the shaftless screw can crush large particles in the sludge during the conveying process, increase the uniformity of the sludge, reduce the conveying resistance, and thus improve the overall conveying efficiency.

[0019] 2. The design of the adjustable legs allows the user to flexibly adjust the height and inclination angle of the U-shaped trough according to the working environment and sludge characteristics, ensuring the stability and adaptability of the conveyor under different conditions.

[0020] 3. The second motor-driven valve at the discharge port enables automated control of the discharge port, accurately controlling the sludge discharge flow rate and improving operational convenience and accuracy. At the same time, the design of the top cover and front end plate ensures the sealing and safety of the discharge port, preventing leakage and personal injury.

[0021] The valve adopts a spherical structure design and is evenly distributed with blades that match the shape of the bottom of the U-shaped groove. This design not only improves the control accuracy of the valve, but also effectively reduces the blockage and wear problems of sludge during the discharge process, thereby extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 This is the front view of the utility model;

[0025] Figure 3 This is a top view of the utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the adjustable support foot in the present utility model;

[0027] Figure 5 It is a partial cross-sectional view of the utility model;

[0028] Figure 6 for Figure 5 A schematic diagram of the structure enlarged in the middle;

[0029] Figure 7 It is a top view of a partial cross-sectional view of the present invention.

[0030] 1. U-shaped groove; 2. Adjusting foot; 21. Adjusting leg sleeve; 22. Adjusting leg rod; 23. First fixing bolt; 24. Second fixing bolt; 25. Connecting rod; 3. Feed inlet; 31. First motor; 32. Rotating rod; 33. Support plate; 34. Leakage plate; 4. Discharge port; 41. Second motor; 42. Valve; 43. Top cover; 44. Front end plate; 5. Reducer; 6. Shaftless screw; 61. Crushing blade. DETAILED DESCRIPTION

[0031] like Figure 1-Figure 7 As shown, the utility model provides a shaftless screw conveyor, comprising:

[0032] The U-shaped trough 1, as the main structural part of the conveyor, has an open trough design to ensure the stability and continuity of the conveying process. The U-shaped trough 1 is provided with a feed port 3 and a discharge port 4 at both ends to meet the input and output requirements of the sludge.

[0033] To adjust the height and stability of the conveyor, four sets of adjustable legs 2 are installed at both ends of the bottom of the U-shaped trough 1. Each set of adjustable legs 2 includes an adjustable leg sleeve 21, an adjustable leg rod 22, a first fixing bolt 23, a second fixing bolt 24, and a connecting rod 25. By adjusting the insertion depth of the adjustable leg rod 22 within the adjustable leg sleeve 21 and securing it with the first fixing bolt 23, the height of the conveyor can be flexibly adjusted. The provision of the connecting rod 25 also enhances the overall stability of the U-shaped trough 1.

[0034] The feed port 3 and auxiliary feeding mechanism are located above the U-shaped trough 1 and are used to add sludge to the conveyor. To optimize the sludge dispersion effect, an auxiliary feeding mechanism is provided in the feed port 3. The mechanism includes a first motor 31, a rotating rod 32, a support plate 33, and a leakage plate 34.

[0035] In this embodiment, the first motor 31 is a speed-regulating motor, which can adjust the speed according to the flow rate and properties of the sludge. The initial angle between the leakage plate 34 and the horizontal plane is set to 45 degrees to better disperse the sludge.

[0036] When the first motor 31 drives the rotating rod 32 to swing to the left, the support plate 33 also swings to the left. At this time, the angle between the leakage plate 34 and the horizontal plane becomes a vertical angle, and the sludge can directly pass through the gap between the leakage plates 34 into the U-shaped groove 1 below and be taken away by the shaftless spiral member 6; when the first motor 31 drives the rotating rod 32 to swing to the right, the support plate 33 swings to the right. At this time, the angle between the leakage plate 34 and the horizontal plane becomes a parallel angle, and the sludge slides down through the stepped plane formed by each continuous leakage plate 34, enters the U-shaped groove 1 on the right below, and is also taken away by the shaftless spiral member 6.

[0037] This reciprocating swing effectively disperses the sludge at the feed port 3, avoiding the problem of fixed-point accumulation. At the same time, the design of the leakage plate 34 also plays a filtering role, screening and blocking impurities in the sludge. Depending on the flow rate and properties of the sludge, the speed and swing frequency of the first motor 31 can be adjusted to optimize the sludge dispersion effect.

[0038] Discharge port 4, located at the other end of the U-shaped trough 1, is used to discharge sludge from the conveyor. It comprises a second motor 41, a valve 42, a top cover 43, and a front end plate 44. Valve 42 is spherical and has several blades evenly distributed on it. The curved shape of the blades aligns with the curved shape of the bottom of the U-shaped trough 1. The second motor 41 drives the blades of valve 42 to rotate, controlling the amount of sludge discharged. The top cover 43 covers the top of discharge port 4, providing protection from external debris and preventing it from entering. It is also easy to remove and install, facilitating cleaning and maintenance within the discharge port 4. During sludge conveying, the sealing performance of the top cover 43 effectively prevents sludge leakage, maintaining a clean working environment. The front end plate 44 is located at the front end of the discharge port 4. Its top end is hinged to the top cover 43, facilitating opening and closing, providing protection, and effectively preventing sludge from splashing during discharge.

[0039] The reducer 5 and the shaftless screw 6 are mounted on one side of the U-shaped trough 1, with its output shaft flange connected to one end of the shaftless screw 6. The shaftless screw 6 serves as the conveying component of the conveyor, with one end connected to the output shaft flange of the reducer 5 and the other end freely suspended in the U-shaped trough 1. A crushing blade 61 is also fixedly connected to the outside of the shaftless screw 6 to enhance the crushing ability of the sludge.

[0040] During actual operation, the reducer 5 drives the shaftless screw 6 to rotate, transporting the sludge from the feed port 3 to the discharge port 4. At the same time, the crushing blade 61 crushes the sludge to ensure smooth transportation of the sludge.

[0041] Working principle:

[0042] In actual use, the height and tilt angle of the U-shaped trough 1 can be precisely adjusted to suit different working environments and sludge characteristics by first adjusting the bolt connection between the adjustment leg sleeve 21 and the adjustment leg rod 22 of the adjustment leg 2, and then using the first fixing bolt 23 and the second fixing bolt 24. In addition, the connecting rod 25 is used to securely connect the two adjustment legs 2 on both sides, enhancing the stability of the overall structure.

[0043] Sludge feeding: Sludge is fed into the U-shaped trough 1 through two symmetrically arranged feed ports 3. Each feed port 3 is equipped with an auxiliary feeding mechanism, driven by a first motor 31, which drives a rotating rod 32 and a support plate 33 to swing left and right. This swinging mechanism ensures that the sludge is evenly distributed within the U-shaped trough 1, effectively preventing accumulation at specific locations. Furthermore, a linear array of sludge-dispersion plates 34 is fixedly connected within the support plates 33. The design of these sludge-dispersion plates 34 further optimizes sludge dispersion.

[0044] Sludge conveying: the shaftless screw 6 rotates under the drive of the speed reducer 5 to convey the sludge from the feeding port 3 end to the discharging port 4 end. During the conveying process, the broken blade 61 breaks the large particles in the sludge, thereby improving the conveying efficiency and the uniformity of the sludge.

[0045] Sludge discharging: when the sludge reaches the discharging port 4, the opening and closing and rotating speed of the valve 42 are controlled by the second motor 41 to realize the automatic discharging of the sludge. The valve 42 is designed as a spherical structure, and a plurality of blades are uniformly arranged on the valve 42, the arc structure of the blades is matched with the arc structure of the bottom of the U-shaped groove 1, which can more effectively control the outflow of the sludge and reduce the problems of blockage and wear of the sludge during the discharging process. At the same time, the design of the top cover 43 and the front end plate 44 ensures the sealing and safety of the discharging port 4.

[0046] The above is only a preferred embodiment of the present application, and does not limit the present application in any form; any ordinary technical personnel in the industry can implement the present application according to the drawings and the above; however, any equivalent changes, modifications and evolutions made by those skilled in the art within the scope of the technical scheme of the present application, using the above disclosed technical content, are equivalent embodiments of the present application; at the same time, any equivalent changes, modifications and evolutions made according to the essential technology of the present application to the above embodiments are still within the protection scope of the technical scheme of the present application.

Claims

1. A shaftless screw conveyor, comprising a U-shaped trough (1), and a reducer (5) installed at one end of the U-shaped trough (1), wherein an output shaft flange of the reducer (5) is connected to one end of a shaftless screw member (6), the shaftless screw member (6) is arranged inside the U-shaped trough (1), and a discharge port (4) is provided at the other end of the U-shaped trough (1), characterized in that: A feed port (3) is provided above the U-shaped groove (1), an auxiliary feed mechanism is provided in the feed port (3), two feed ports (3) are symmetrically provided on the U-shaped groove (1), and four groups of adjustment legs (2) are provided on the side of the U-shaped groove (1).

2. The shaftless screw conveyor according to claim 1, characterized in that: The auxiliary feeding mechanism comprises: a first motor (31), a rotating rod (32), a support plate (33) and a leakage plate (34); the first motor (31) is fixedly connected to one side of the feed port (3), both sides of the support plate (33) are connected to the rotating rod (32), one side of the support plate (33) passes through the feed port (3) through the rotating rod (32) and is connected to the output shaft of the first motor (31), and the other side of the support plate (33) is rotatably connected to the feed port (3) through the rotating rod (32).

3. The shaftless screw conveyor according to claim 2, characterized in that: A plurality of leakage plates (34) are linearly arrayed and fixedly connected inside the support plate (33), and the leakage plates (34) are arranged at an angle.

4. The shaftless screw conveyor according to claim 3, characterized in that: The adjusting leg (2) comprises an adjusting leg sleeve (21), an adjusting leg rod (22), a first fixing bolt (23), and a second fixing bolt (24); the upper end of the adjusting leg sleeve (21) is fixed to the side of the U-shaped groove (1) by the second fixing bolt (24); a plurality of bolt holes are evenly arranged on both sides of the adjusting leg sleeve (21), and bolt holes corresponding to the first fixing bolt (23) are provided on both sides of the top of the adjusting leg rod (22); the adjusting leg rod (22) is sleeved in the adjusting leg sleeve (21), and the first fixing bolt (23) is inserted into the bolt holes corresponding to the adjusting leg sleeve (21) and the adjusting leg rod (22), thereby fixing the adjusting leg sleeve (21) and the adjusting leg rod (22); the adjusting leg sleeves (21) on both sides of the U-shaped groove (1) are connected by a connecting rod (25).

5. The shaftless screw conveyor according to claim 4, characterized in that: The discharge port (4) includes a second motor (41), a valve (42), a top cover (43) and a front end plate (44); the second motor (41) is installed on the side of the U-shaped groove (1), the valve (42) is rotatably arranged in the discharge port (4), the output shaft of the second motor (41) passes through the U-shaped groove (1) and is connected to the valve (42), the top cover (43) is installed on the top of the discharge port (4), the front end plate (44) is arranged on one side of the discharge port (4), and the top end of the front end plate (44) is hinged to the top cover (43).

6. The shaftless screw conveyor according to claim 5, characterized in that: The valve (42) is a spherical structure, and a plurality of blades are evenly distributed on the valve (42), and the arc-shaped structure of the blades matches the arc-shaped structure of the bottom of the U-shaped groove (1).

7. The shaftless screw conveyor according to claim 1, characterized in that: A crushing blade (61) is provided on the outside of the shaftless spiral member (6).

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