Anti-blocking spiral conveying device

Abstract

The utility model provides an anti-blocking spiral conveying device. The anti-blocking spiral conveying device comprises a first conveying barrel, a first conveying structure, a reverse cutting structure, a second conveying barrel, a second conveying structure and a connecting locking structure. A first spiral propeller shaft and a reverse cutting structure are arranged in the first conveying barrel, and a second spiral propeller shaft is arranged in the second conveying barrel. The reverse cutting structure comprises a transmission shaft driven by a second motor and a cutting blade, the rotation direction of the reverse cutting structure is opposite to that of the first spiral propeller shaft, and wound materials are effectively cut off; the connection locking structure drives the wedge block through the hydraulic cylinder to achieve rapid locking and separation.

Description

Technical Field

[0001] This utility model relates to the field of material conveying equipment technology, and in particular to an anti-clogging screw conveyor device. Background Technology

[0002] Screw conveyors are widely used in agriculture, chemical industry, and other fields. However, existing technologies are prone to entanglement and blockage when conveying viscous materials, leading to downtime for cleaning and reduced efficiency. Traditional anti-blocking methods often employ a single cutting structure, but the anti-blocking effect is limited when the cutting direction is consistent with the conveying direction, and the cutting blades are easily entangled and rendered ineffective by the material. Furthermore, the segmented connection structure of the conveyor cylinder is complex, making disassembly and maintenance inconvenient, and the cleaning process is cumbersome once blockage occurs. Utility Model Content

[0003] In view of this, the main objective of this utility model is to solve one of the above-mentioned problems.

[0004] This utility model provides an anti-clogging spiral conveying device, comprising: a first conveying cylinder, a first conveying structure, a reverse cutting structure, a second conveying cylinder, a second conveying structure, and a connecting locking structure; the first conveying cylinder includes a first cylinder body, an inlet, a first connecting port, and a sealing gasket; the inlet is located at the top left end of the first cylinder body, and a cap is provided at the top of the inlet via a rotating shaft; the first connecting port is located at the right end of the first cylinder body, and the sealing gasket is located at the right end of the first connecting port; several supporting feet are provided at the bottom of the first cylinder body; the first conveying structure includes a first motor, a drive gear, a driven gear, and a first spiral propulsion shaft; the drive gear is located on the outer side of the left end of the first cylinder body, the drive shaft of the first motor is connected to the drive gear, and the first spiral propulsion shaft is located at the bottom of the first cylinder body; Inside the first cylinder, the left end of the first spiral propulsion shaft penetrates and extends out of the right sidewall of the first cylinder. A driven gear is located at the left end of the first spiral propulsion shaft, and the driving gear meshes with the driven gear for transmission. The reverse cutting structure includes a second motor, a transmission shaft, and a cutting blade. The transmission shaft is mounted inside the first spiral propulsion shaft via bearings. The second motor is located at the left end of the first spiral propulsion shaft. One end of the transmission shaft is connected to the drive shaft of the second motor, and the other end is connected to the cutting blade. The rotation direction of the cutting blade is opposite to the rotation direction of the first spiral propulsion shaft. Inside the second conveying cylinder, a second conveying structure is provided. The first conveying cylinder and the second conveying cylinder are connected by the connecting locking structure.

[0005] Furthermore, the second feeding cylinder includes a second cylinder body, a discharge port, and a second pair of interfaces; the discharge port is located at the right end of the second cylinder body, and the second pair of interfaces is located at the left end of the second cylinder body, wherein the first pair of interfaces of the first feeding cylinder matches and corresponds to the second pair of interfaces of the second feeding cylinder.

[0006] Furthermore, the second conveying structure includes a third motor and a second spiral propulsion shaft; the third motor is located on the outer side of the right end of the second cylinder, and the second spiral propulsion shaft is located inside the second cylinder. The drive shaft of the third motor passes through the right sidewall of the second cylinder and is connected to the second spiral propulsion shaft. The spiral direction of the second spiral propulsion shaft is the same as that of the first spiral propulsion shaft, and the rotation direction of the second spiral propulsion shaft is the same as that of the first spiral propulsion shaft.

[0007] Furthermore, the connection locking structure includes a hydraulic cylinder, a pressure plate, a first wedge block, and a second wedge block; the hydraulic cylinder is located at the top right end of the first cylinder, and the top of the hydraulic cylinder is connected to the bottom left end of the pressure plate. The bottom right end of the pressure plate is provided with the first wedge block, and the second wedge block is located at the top left end of the second cylinder. The normal of the long inclined surface of the first wedge block points to the lower left, and the long inclined surface of the second wedge block can fit against the long inclined surface of the first wedge block.

[0008] Furthermore, the reverse cutting structure has two cutting blades, which are connected to the drive shaft via a sleeve, and the two cutting blades are distributed at an alternating angle.

[0009] Furthermore, an anti-clogging screw conveyor also includes an observation window, which is provided on both the first cylinder and the second cylinder.

[0010] The beneficial effects of this utility model are as follows:

[0011] The cutting blades of the reverse cutting structure rotate in the opposite direction to the spiral propulsion shaft, which can cut tangled materials or clear blockages to ensure smooth material conveying; the first and second conveying structures work together to improve material conveying efficiency; the hydraulic cylinder drives the wedge block to lock, ensuring a tight connection between the first and second conveying cylinders, enabling quick disassembly and assembly of the conveying cylinders and improving maintenance efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of an anti-clogging spiral conveyor device according to the present invention;

[0013] Figure 2 This is a schematic diagram of the first feeding cylinder of this utility model;

[0014] Figure 3This is a schematic diagram of the first conveying structure of this utility model;

[0015] Figure 4 This is a schematic diagram of the reverse cutting structure of this utility model;

[0016] Figure 5 This is a schematic diagram of the second feeding cylinder of this utility model;

[0017] Figure 6 This is a schematic diagram of the second conveying structure of this utility model;

[0018] Figure 7 This is a schematic diagram of the connection and locking structure of this utility model;

[0019] The above figures include the following reference numerals:

[0020] 1. First feeding cylinder; 101. First cylinder body; 102. Feed inlet; 1021. Cover; 103. First mating interface; 104. Sealing gasket; 2. First conveying structure; 201. First motor; 202. Drive gear; 203. Driven gear; 204. First spiral propulsion shaft; 3. Reverse cutting structure; 301. Second motor; 302. Transmission shaft; 303. Cutting blade; 4. Second feeding cylinder; 401. Second cylinder body; 402. Discharge port; 403. Second mating interface; 5. Second conveying structure; 501. Third motor; 502. Second spiral propulsion shaft; 6. Connecting locking structure; 601. Hydraulic cylinder; 602. Pressure plate; 603. First wedge block; 604. Second wedge block; 7. Observation window. Detailed Implementation

[0021] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in the present application can be combined with each other.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. The present application will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] like Figure 1 As shown in the preferred embodiment of the present invention, an anti-clogging spiral conveying device includes: a first conveying cylinder 1, a first conveying structure 2, a reverse cutting structure 3, a second conveying cylinder 4, a second conveying structure 5, and a connecting locking structure 6.

[0024] like Figure 2 As shown, the first feeding cylinder 1 includes a first cylinder body 101, a feed inlet 102, a first mating interface 103, and a sealing gasket 104. The feed inlet 102 is located at the top left end of the first cylinder body 101, and a cover 1021 is provided at the top of the feed inlet 102 via a rotating shaft. The first mating interface 103 is located at the right end of the first cylinder body 101, and the sealing gasket 104 is located at the right end of the first mating interface 103. Several support feet are provided at the bottom of the first cylinder body 101. The feed inlet 102 is located at the top of the first cylinder body 101 to facilitate material input. The cover 1021 is opened and closed via a rotating shaft to prevent foreign objects from entering or dust from overflowing. The sealing gasket 104 ensures a tight seal during docking to prevent material leakage.

[0025] like Figure 3As shown, the first conveying structure 2 includes a first motor 201, a drive gear 202, a driven gear 203, and a first spiral propulsion shaft 204. The drive gear 202 is located on the outer side of the left end of the first cylinder 101. The drive shaft of the first motor 201 is connected to the drive gear 202. The first spiral propulsion shaft 204 is located inside the first cylinder 101. The left end of the first spiral propulsion shaft 204 passes through and extends out of the right sidewall of the first cylinder 101. The driven gear 203 is located on the left end of the first spiral propulsion shaft 204. The drive gear 202 meshes with the driven gear 203 for transmission. The first motor 201 provides power to drive the spiral propulsion shaft to rotate. The drive gear 202 meshes with the driven gear 203 to transmit the motor power to the first spiral propulsion shaft 204.

[0026] In a preferred embodiment, the first helical propulsion shaft 204 is a variable-diameter helical shaft, with its diameter gradually narrowing from left to right. The diameter of the first cylinder 101 also gradually narrows from left to right, matching the diameter change of the first helical propulsion shaft 204. The gradual reduction in diameter of the first helical propulsion shaft 204 from left to right, together with the correspondingly narrowing first cylinder 101, forms a compression chamber. This allows the material to be gradually pressurized during transport, eliminating material backflow caused by insufficient pressure in traditional constant-diameter helical shafts. Furthermore, the high pressure at the end enhances the material's fluidity.

[0027] like Figure 4 As shown, the reverse cutting structure 3 includes a second motor 301, a drive shaft 302, and a cutting blade 303. The drive shaft 302 is mounted inside the first spiral propulsion shaft 204 via bearings. The second motor 301 is located at the left end of the first spiral propulsion shaft 204. One end of the drive shaft 302 is connected to the drive shaft of the second motor 301, and the other end is connected to the cutting blade 303. The rotation direction of the cutting blade 303 is opposite to the rotation direction of the first spiral propulsion shaft 204. The drive shaft 302 is nested inside the first spiral propulsion shaft 204 to achieve power transmission and space optimization, ensuring that the reverse rotation of the cutting blade 303 driven by the second motor 301 and the forward rotation of the first spiral propulsion shaft 204 do not interfere with each other. The reverse rotation of the cutting blade 303 and the first spiral propulsion shaft 204 generates shearing force, directly cutting entangled fibers or sticky materials.

[0028] The second conveying cylinder 4 is provided with the second conveying structure 5 inside, and the first conveying cylinder 1 and the second conveying cylinder 4 are connected by the connecting locking structure 6.

[0029] As a preferred embodiment of this utility model, it may also have the following additional technical features:

[0030] like Figure 5 As shown, in a preferred embodiment, the second conveying cylinder 4 includes a second cylinder body 401, a discharge port 402, and a second connecting port 403. The discharge port 402 is located at the right end of the second cylinder body 401, and the second connecting port 403 is located at the left end of the second cylinder body 401. The first connecting port 103 of the first conveying cylinder 1 matches and corresponds to the second connecting port 403 of the second conveying cylinder 4. The second cylinder body 401 connects to the first conveying cylinder, extending the conveying path; the discharge port 402 discharges material at the end of the second cylinder body 401 and can also be connected to other equipment.

[0031] like Figure 6 As shown, in a preferred embodiment, the second conveying structure 5 includes a third motor 501 and a second spiral propulsion shaft 502. The third motor 501 is located on the outer side of the right end of the second cylinder 401, and the second spiral propulsion shaft 502 is located inside the second cylinder 401. The drive shaft of the third motor 501 passes through the right sidewall of the second cylinder 401 and is connected to the second spiral propulsion shaft 502. The spiral direction of the second spiral propulsion shaft 502 is the same as that of the first spiral propulsion shaft 204, and the rotation direction of the second spiral propulsion shaft 502 is the same as that of the first spiral propulsion shaft 204. The second spiral propulsion shaft 502 rotates in the same direction as the first spiral propulsion shaft 204, ensuring that the material flow direction is consistent and maintaining continuous material conveying. The segmented relay conveying also avoids the risk of insufficient torque or blockage caused by an excessively long single spiral shaft.

[0032] In a preferred embodiment, the second helical propulsion shaft 502 is a variable-diameter helical shaft, with its diameter gradually widening from left to right. The diameter of the second cylinder 401 also gradually widens from left to right, matching the diameter variation of the second helical propulsion shaft 502. The gradual increase in diameter of the second helical propulsion shaft 502, together with the co-widening second cylinder 401, forms an expansion cavity, releasing material and preventing blockage.

[0033] like Figure 7As shown, in a preferred embodiment, the connecting locking structure 6 includes a hydraulic cylinder 601, a pressure plate 602, a first wedge block 603, and a second wedge block 604. The hydraulic cylinder 601 is disposed at the top right end of the first cylinder 101, and the top of the hydraulic cylinder 601 is connected to the bottom left end of the pressure plate 602. The bottom right end of the pressure plate 602 is provided with the first wedge block 603, and the second wedge block 604 is disposed at the top left end of the second cylinder 401. The normal of the long inclined surface of the first wedge block 603 points to the lower left, and the long inclined surface of the second wedge block 604 can fit against the long inclined surface of the first wedge block 603. The hydraulic cylinder 601 provides power to drive the two wedge blocks to lock together, and the hydraulic drive can achieve one-click locking and separation, saving maintenance time; the long inclined surface of the first wedge block 603 and the long inclined surface of the second wedge block 604 fit together to generate a self-locking force, thereby fixing the two sections of the conveyor cylinder, preventing vibration and loosening, and ensuring a stable connection; and the hydraulic drive can achieve one-click locking and separation, saving maintenance time.

[0034] like Figure 4 As shown, in a preferred embodiment, the reverse cutting structure 3 has two cutting blades 303. The cutting blades 303 are connected to the drive shaft 302 through a sleeve. The two cutting blades 303 are distributed at an alternating angle, which can enhance the cutting coverage and avoid material residue.

[0035] like Figure 4 As shown, in a preferred embodiment, an anti-clogging screw conveyor further includes an observation window 7, which is provided on both the first cylinder 101 and the second cylinder 401. The observation window 7 is preferably made of wear-resistant glass or resin material, allowing for real-time monitoring of the material conveying status within the cylinder and facilitating the detection of blockages or abnormalities.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A clog-resistant screw conveyor, characterized in that, include: First feeding cylinder (1), first conveying structure (2), reverse cutting structure (3), second feeding cylinder (4), second conveying structure (5), connecting locking structure (6); The first feeding cylinder (1) includes a first cylinder body (101), a feed inlet (102), a first coupling interface (103), and a sealing gasket (104); the feed inlet (102) is located at the top left end of the first cylinder body (101), and a cover (1021) is provided at the top of the feed inlet (102) via a rotating shaft; the first coupling interface (103) is located at the right end of the first cylinder body (101), and the sealing gasket (104) is located at the right end of the first coupling interface (103); the bottom of the first cylinder body (101) is provided with several supporting feet. The first conveying structure (2) includes a first motor (201), a drive gear (202), a driven gear (203), and a first spiral propulsion shaft (204). The drive gear (202) is located on the outer side of the left end of the first cylinder (101). The drive shaft of the first motor (201) is connected to the drive gear (202). The first spiral propulsion shaft (204) is located inside the first cylinder (101). The left end of the first spiral propulsion shaft (204) passes through and extends out of the right side wall of the first cylinder (101). The driven gear (203) is located on the left end of the first spiral propulsion shaft (204). The drive gear (202) meshes with the driven gear (203) for transmission. The reverse cutting structure (3) includes a second motor (301), a drive shaft (302), and a cutting blade (303); the drive shaft (302) is mounted inside the first spiral propulsion shaft (204) via a bearing, the second motor (301) is mounted at the left end of the first spiral propulsion shaft (204), one end of the drive shaft (302) is connected to the drive shaft of the second motor (301), and the other end of the drive shaft (302) is connected to the cutting blade (303); wherein, the rotation direction of the cutting blade (303) is opposite to the rotation direction of the first spiral propulsion shaft (204); The second conveying cylinder (4) is provided with the second conveying structure (5), and the first conveying cylinder (1) and the second conveying cylinder (4) are connected by the connecting locking structure (6).

2. The anti-clogging screw conveyor device according to claim 1, characterized in that, The second feeding cylinder (4) includes a second cylinder body (401), a discharge port (402), and a second docking port (403); The discharge port (402) is located at the right end of the second cylinder (401), and the second pair of interfaces (403) is located at the left end of the second cylinder (401). The first pair of interfaces (103) of the first conveying cylinder (1) matches and corresponds to the second pair of interfaces (403) of the second conveying cylinder (4).

3. The anti-clogging screw conveyor device according to claim 2, characterized in that, The second conveying structure (5) includes a third motor (501) and a second spiral propulsion shaft (502); The third motor (501) is located on the outer side of the right end of the second cylinder (401), and the second spiral propulsion shaft (502) is located inside the second cylinder (401). The drive shaft of the third motor (501) passes through the right side wall of the second cylinder (401) and is connected to the second spiral propulsion shaft (502). The spiral direction of the second spiral propulsion shaft (502) is the same as the spiral direction of the first spiral propulsion shaft (204), and the rotation direction of the second spiral propulsion shaft (502) is the same as the rotation direction of the first spiral propulsion shaft (204).

4. The anti-clogging screw conveyor device according to claim 2, characterized in that, The connecting locking structure (6) includes a hydraulic cylinder (601), a pressure plate (602), a first wedge block (603), and a second wedge block (604); The hydraulic cylinder (601) is located at the top right end of the first cylinder (101). The top of the hydraulic cylinder (601) is connected to the bottom left end of the pressure plate (602). The bottom right end of the pressure plate (602) is provided with the first wedge block (603). The second wedge block (604) is located at the top left end of the second cylinder (401). The normal of the long inclined surface of the first wedge block (603) points to the lower left. The long inclined surface of the second wedge block (604) can fit with the long inclined surface of the first wedge block (603).

5. The anti-clogging screw conveyor according to claim 1, characterized in that, The reverse cutting structure (3) has two cutting blades (303), which are connected to the drive shaft (302) through a sleeve. The two cutting blades (303) are distributed at an alternating angle.

6. The anti-jamming screw conveyor as claimed in claim 2, wherein, Including the observation window (7), The first cylinder (101) and the second cylinder (401) are both provided with the observation window (7).

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