Flexible screw conveyor

Abstract

The utility model discloses a flexible spiral conveyor which comprises a conveyor shell, a conveying shaft is rotationally arranged in the conveyor shell through a rear bearing, a flexible spiral blade is arranged on the outer side of the conveying shaft in a sliding mode, a lead screw is rotationally arranged in a limiting sliding groove outside the conveying shaft, and a plurality of limiting sliding blocks are fixedly arranged on the inner wall of the flexible spiral blade. The flexible spiral blades are slidably arranged on the outer side of the conveying shaft, the lead screw is rotatably arranged in the limiting sliding groove outside the conveying shaft, the limiting sliding blocks are in threaded connection with the outer portion of the lead screw at equal intervals, an access hole is formed in the upper side of the conveying machine shell, and the upper end cover is hinged to the upper side of the access hole through a hinge. The inner wall of the flexible spiral blade is in threaded connection with the lead screw through the multiple limiting sliding blocks, so that the multiple limiting sliding blocks can be synchronously moved and adjusted by rotating the adjusting lead screw, the distance between the adjacent spiral blades can be adjusted, the requirement for use and treatment of conveyed materials with the spiral length can be met, and meanwhile the mixing efficiency of the materials can be improved.

Description

Technical Field

[0001] This utility model relates to the field of screw conveyor technology, specifically a flexible screw conveyor. Background Technology

[0002] The basic structure of a screw conveyor consists of rotatable helical blades mounted on a straight shaft within a straight tube casing. Screw conveyors are typically used for conveying granular solid materials, but can also be used to convey liquids or mixtures of solids and liquids. For example, they are used to convey food waste, sawdust, grains, boiler slag, slurry, and concrete slurry. A screw conveyor is usually driven by an electric motor at one end, rotating the helical blades within bearings at both ends of the straight tube casing. The conveying speed is directly proportional to the rotational speed of the helical blade shaft. Screw conveyors can be used for horizontal material conveying or for conveying materials upwards at a certain angle. Therefore, screw conveyors are a very widely used lifting and conveying device. Screw conveyors are also used in the brewing process for conveying materials.

[0003] The prior art, patent application number 202411249852.4, describes a flexible screw conveyor for quantitative feeding of feed pellets, which includes a support mechanism, a hopper, a motor, and a flexible screw conveyor mechanism. The support mechanism supports the flexible screw conveyor mechanism, the hopper provides material, and the motor drives the flexible screw conveyor mechanism. This reduces the hard contact pressure and thrust on the feed pellets, improves the crushing effect on the feed pellets, and greatly reduces the breakage rate of the feed pellets. However, it cannot adjust the spacing between adjacent screw blades, making it difficult to meet the material conveying requirements of the screw length. Utility Model Content

[0004] The purpose of this invention is to provide a flexible screw conveyor to solve the problem in the prior art that the spacing between adjacent screw blades cannot be adjusted, making it difficult to meet the material conveying requirements of the screw length.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a flexible screw conveyor, including a conveyor housing, a conveying shaft rotatably mounted in the middle of the conveyor housing via a rear bearing, flexible helical blades movable axially on the outer side of the conveying shaft, a lead screw rotatably mounted in a limiting groove on the outer side of the conveying shaft, multiple limiting sliders fixedly mounted on the inner wall of the flexible helical blades, and the multiple limiting sliders being threadedly connected to the lead screw at equal intervals, and an inspection port on the upper side of the conveyor housing, with an upper end cover hinged to the upper side of the inspection port via a hinge.

[0006] Furthermore, the conveyor housing is provided with a lower support leg on the lower side, and a feed hopper is provided on the upper side of one end of the conveyor housing.

[0007] Furthermore, one end of the conveyor shaft inside the conveyor housing is connected to an electric motor via a belt flywheel assembly, and the electric motor is fixedly mounted on the outer wall of the lower support leg via a positioning seat.

[0008] Furthermore, one end of the conveying shaft is rotatably installed through the outer wall of the conveyor housing, and multiple discharge ports are provided at equal intervals on the lower side of the conveyor housing.

[0009] Furthermore, a positioning sleeve is slidably fitted on one end of the conveyor housing and the upper end cover, and a first locking bolt is threaded on the side wall of the positioning sleeve.

[0010] Furthermore, the limiting slider is a rectangular slider, and the two sides of the limiting slider are slidably disposed with respect to the inner wall of the limiting groove.

[0011] Furthermore, one end of the lead screw is provided with an adjustment handle, and the internal thread of the adjustment handle is provided with a second locking bolt.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model features a flexible spiral blade that slides on the outside of a conveying shaft, and a lead screw that rotates within a limiting groove outside the conveying shaft. The inner wall of the flexible spiral blade is connected to the lead screw via multiple limiting sliders, allowing the multiple limiting sliders to move synchronously and adjust by rotating and adjusting the lead screw. This enables the adjustment of the spacing between adjacent spiral blades, satisfying the material handling requirements of the spiral length and improving the mixing efficiency of the material.

[0014] 2. This utility model features an inspection port on the upper side of the conveyor housing, with an upper cover hinged to the upper side of the inspection port. This allows for easy access to the interior of the conveyor housing for inspection or cleaning. A positioning sleeve is slidably fitted onto one end of the conveyor housing and the upper cover, with a first locking bolt threaded onto the side wall of the positioning sleeve. When the positioning sleeve is fitted onto the outside of one end of the upper cover, it is used to position the upper cover, which is locked onto the upper side of the conveyor housing. The positioning stability is high, and disassembly and assembly are convenient and quick.

[0015] 3. This utility model has an adjustment handle at one end of the lead screw, and a second locking bolt is provided on the internal thread of the adjustment handle, which facilitates the rotation adjustment of the lead screw by the adjustment handle, and at the same time, the second locking bolt is used to position the adjustment handle after rotation adjustment. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the conveyor housing of this utility model;

[0019] Figure 3 This is a schematic diagram of the flexible spiral blade installation structure of this utility model.

[0020] In the diagram: 1. Conveyor housing; 2. Lower support leg; 3. Feed hopper; 4. Inspection port; 5. Upper end cover; 6. Positioning sleeve; 7. Conveyor shaft; 8. Limiting groove; 9. Limiting slider; 10. Lead screw; 11. Hinge; 12. Belt flywheel assembly; 13. Motor; 14. Positioning seat; 15. Bearing; 16. Adjusting handle; 17. Second locking bolt; 18. Flexible spiral blade; 19. First locking bolt. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1 , Figure 2 , Figure 3 In this embodiment of the present invention, a flexible screw conveyor includes a conveyor housing 1. A conveyor shaft 7 is rotatably mounted in the middle of the conveyor housing 1 via a rear bearing 15. Flexible screw blades 18 that can move axially are provided on the outer side of the conveyor shaft 7. A lower support leg 2 is provided on the lower side of the conveyor housing 1. A feed hopper 3 is provided on the upper side of one end of the conveyor housing 1. One end of the conveyor shaft 7 inside the conveyor housing 1 is connected to a motor 13 via a belt flywheel assembly 12. The motor 13 is fixedly mounted on the outer wall of the lower support leg 2 via a positioning seat 14. When the motor 13 drives the conveyor shaft 7 and the flexible screw blades 18 to rotate radially, the material can be mixed and then horizontally conveyed out and discharged from the outlet.

[0023] like Figure 2 and Figure 3As shown, in order to meet the material conveying requirements of the spiral length, a lead screw 10 is rotatably installed in the limiting groove 8 outside the conveying shaft 7. Multiple limiting sliders 9 are fixedly installed on the inner wall of the flexible spiral blade 18, and the multiple limiting sliders 9 are equally spaced and threaded to the outside of the lead screw 10. The limiting sliders 9 are rectangular sliders, and the two sides of the limiting sliders 9 are slidably set with the inner wall of the limiting groove 8, so that by rotating and adjusting the lead screw 10, the multiple limiting sliders 9 can be moved and adjusted synchronously, thereby adjusting the spacing between adjacent spiral blades, which can meet the material conveying requirements of the spiral length and improve the mixing efficiency of the material.

[0024] like Figure 1 and Figure 2 As shown, in order to inspect or clean the inside of the conveyor housing 1, an inspection port 4 is provided on the upper side of the conveyor housing 1, and an upper cover 5 is hinged to the upper side of the inspection port 4 by a hinge 11, so that opening the upper cover 5 facilitates the inspection or cleaning of the inside of the conveyor housing 1.

[0025] like Figure 1 and Figure 2 As shown, in order to discharge the material after one end of the flexible spiral blades 18 with different compression degrees is spirally fed, a conveyor shaft 7 is also provided to rotate through the outer wall of the conveyor housing 1. Multiple discharge ports are provided at equal intervals on the lower side of the conveyor housing 1, and each discharge port is provided with a discharge valve for discharging the material after one end of the flexible spiral blades 18 with different compression degrees is spirally fed.

[0026] like Figure 1 and Figure 2 As shown, in order to position the upper end cover 5 that is stuck on the upper side of the conveyor housing 1, a positioning sleeve 6 is slidably sleeved on one end of the conveyor housing 1 and the upper end cover 5, and a first locking bolt 19 is threaded on the side wall of the positioning sleeve 6. When the positioning sleeve 6 is sleeved on the outside of one end of the upper end cover 5, it is used to position the upper end cover 5 that is stuck on the upper side of the conveyor housing 1. Otherwise, it is easy to disassemble. Moreover, the positioning stability is high and the disassembly and assembly are convenient and quick.

[0027] like Figure 1 and Figure 3 As shown, in order to adjust the lead screw 10 by rotation, an adjustment handle 16 is provided at one end of the lead screw 10, and a second locking bolt 17 is provided in the internal thread of the adjustment handle 16, so as to make it easy to adjust the lead screw 10 by rotation using the adjustment handle 16, and at the same time, the second locking bolt 17 is used to position the adjustment handle 16 after rotation adjustment.

[0028] The working principle and usage process of this utility model are as follows: During use, the brewing raw materials are fed into the conveyor housing 1 through the feed hopper 3. Flexible spiral blades 18 that can move axially are provided on the outside of the conveyor shaft 7. When the motor 13 drives the conveyor shaft 7 and the flexible spiral blades 18 to rotate radially, the materials can be mixed and then horizontally conveyed out and discharged from the outlet. Moreover, a lead screw 10 is rotatably provided in the limiting slide groove 8 outside the conveyor shaft 7. The inner wall of the flexible spiral blades 18 is threadedly connected to the lead screw 10 through multiple limiting sliders 9. By rotating and adjusting the lead screw 10, the multiple limiting sliders 9 can be moved and adjusted synchronously, thereby adjusting the spacing between adjacent spiral blades. This can meet the material handling requirements of the spiral length and improve the mixing efficiency of the materials.

[0029] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A flexible screw conveyor, comprising a conveyor housing (1), characterized in that: The conveyor housing (1) is provided with a conveyor shaft (7) rotating in the middle. The conveyor shaft (7) is provided with a flexible spiral blade (18) that can move along the axial direction on the outside. The screw rod (10) is provided in the limiting groove (8) on the outside of the conveyor shaft (7). Multiple limiting sliders (9) are fixed on the inner wall of the flexible spiral blade (18), and the multiple limiting sliders (9) are connected to the screw rod (10) with threads at equal intervals. The upper side of the conveyor housing (1) is provided with an inspection port (4), and the upper side of the inspection port (4) is hinged with an upper end cover (5) through a hinge (11).

2. The flexible screw conveyor according to claim 1, characterized in that: The conveyor housing (1) is provided with a lower support leg (2) on the lower side, and a feed hopper (3) is provided on the upper side of one end of the conveyor housing (1).

3. A flexible screw conveyor according to claim 2, characterized in that: The conveyor shaft (7) inside the conveyor housing (1) is connected to a motor (13) via a belt flywheel assembly (12). The motor (13) is fixedly installed on the outer wall of the lower support (2) via a positioning seat (14).

4. A flexible screw conveyor according to claim 3, characterized in that: One end of the conveying shaft (7) is rotatably inserted through the outer wall of the conveyor housing (1), and multiple discharge ports are provided at equal intervals on the lower side of the conveyor housing (1).

5. A flexible screw conveyor according to claim 1, characterized in that: The conveyor housing (1) and the upper end cover (5) are slidably fitted with a positioning sleeve (6) at one end, and the side wall of the positioning sleeve (6) is threaded with a first locking bolt (19).

6. A flexible screw conveyor according to claim 1, characterized in that: The limiting slider (9) is a rectangular slider, and the two sides of the limiting slider (9) are slidably disposed with respect to the inner wall of the limiting groove (8).

7. A flexible screw conveyor according to claim 1, characterized in that: The lead screw (10) is provided with an adjustment handle (16) at one end, and the adjustment handle (16) is provided with a second locking bolt (17) on its internal thread.

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