A screw conveyor with detachable discharge pipe
By installing a detachable structure of elastic and rigid pipes at the discharge port of the screw conveyor, the problem of material friction damage to the discharge pipe is solved, achieving the effects of reducing blockage and extending service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG MIX MACHINERY EQUIP
- Filing Date
- 2025-06-27
- Publication Date
- 2026-07-14
AI Technical Summary
The discharge pipe is prone to damage due to material friction during long-term use, resulting in material leakage, and it is difficult to replace or maintain.
A detachable discharge pipe structure was designed, which combines an elastic pipe and a rigid pipe. The elastic pipe is inserted into the rigid pipe, and the rigid pipe is rotatably connected to the outer wall of the cylinder through a bracket. The discharge direction is adjusted by the deformation of the elastic pipe, and the rigid pipe can be disassembled and replaced to avoid damage.
It effectively reduces the probability of material blockage, extends the service life of the discharge pipe, avoids material leakage caused by friction, and facilitates the replacement of damaged parts.
Smart Images
Figure CN224492512U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of screw conveying technology, and in particular to a screw conveyor with a detachable discharge pipe. Background Technology
[0002] Screw conveyors are used for conveying granular materials and are generally arranged at an incline or vertically. One end of the screw conveyor has a feed port, and the other end has a discharge port. Material enters through the feed port, is conveyed by the screw blades inside the conveyor, and then exits through the discharge port.
[0003] In related technical solutions, the feed port is connected to a discharge hopper, allowing material to enter the cylinder relatively smoothly under gravity. The discharge port is essentially suspended, and this location is typically connected to a discharge pipe. During the discharge process using a discharge pipe, the material is accelerated by the screw conveyor and discharged from the relatively small discharge pipe, which is prone to significant friction on its inner wall. In other words, prolonged friction from granular material can easily damage the discharge pipe, leading to leakage from unintended locations. Utility Model Content
[0004] This invention provides a screw conveyor with a detachable discharge pipe, which can solve at least one of the above-mentioned technical problems.
[0005] To solve the above-mentioned technical problems, one or more embodiments of this utility model provide a screw conveyor with a detachable discharge pipe, including a cylinder, both ends of which are sealed. A screw conveying mechanism is installed inside the cylinder, and both ends of the screw conveying mechanism are rotatably connected to both ends of the cylinder. One end of the cylinder along its own axis has a feed inlet, and the other end has a discharge outlet. An elastic tube is fixedly connected to the discharge outlet, with one end of the elastic tube fixedly inserted into the discharge outlet and the other end extending outward. A rigid tube is inserted into the elastic tube, with the other end of the rigid tube extending outward through the elastic tube. Two supports are fixedly installed on the outside of the cylinder, located on both sides of the elastic tube and the rigid tube along a first direction, which is horizontal and perpendicular to the axial direction of the screw conveying mechanism. Two coaxial rotating shafts are provided on both sides of the outer wall of the rigid tube along the first direction, and the two rotating shafts are rotatably connected to adjacent supports.
[0006] The beneficial effects of one or more of the above technical solutions are as follows:
[0007] In this design, an elastic tube is installed at the discharge port, and a rigid tube is inserted into the elastic tube. The rigid tube is rotatably connected to a support on the outer wall of the cylinder. In this configuration, the elastic tube can deform to provide space for the rigid tube to swing, thereby adjusting the discharge direction of the rigid tube and reducing the probability of material blockage inside the cylinder by swinging the rigid tube.
[0008] On the other hand, the rigid tube is inserted into the elastic tube, and after a long period of use, the rigid tube can be replaced by disassembly and assembly to avoid material friction or compression causing the rigid tube to break and leak. Attached Figure Description
[0009] Figure 1 This is a front view schematic diagram of the overall structure in an embodiment of this utility model;
[0010] Figure 2 for Figure 1 Enlarged schematic diagram of part of the right-middle section;
[0011] Figure 3 This is a cross-sectional view of the overall structure in an embodiment of this utility model;
[0012] Figure 4 for Figure 3 Enlarged structural diagram of part A.
[0013] In the diagram, 1 is the geared motor; 2 is the feed pipe; 3 is the cylinder; 301 is the end plate; 4 is the electric push rod; 5 is the discharge pipe; 6 is the screw conveyor mechanism; 501 is the rigid pipe; 502 is the elastic pipe; 503 is the bracket; and 504 is the bolt. Detailed Implementation
[0014] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings.
[0015] See Figures 1-4 This embodiment provides a screw conveyor with a detachable discharge pipe 5, including a cylinder 3, both ends of which are sealed. A screw conveying mechanism 6 is installed inside the cylinder 3, and both ends of the screw conveying mechanism 6 are rotatably connected to both ends of the cylinder 3. One end of the cylinder 3 along its own axis has a feed inlet, and the other end has a discharge outlet. An elastic tube 502 is fixedly connected to the discharge outlet, with one end of the elastic tube 502 fixedly inserted into the discharge outlet and the other end extending outwards. A rigid tube 501 is inserted into the elastic tube 502, with the other end of the rigid tube 501 extending outwards from the elastic tube 502. Two supports 503 are fixedly installed on the outside of the cylinder 3, located on both sides of the elastic tube 502 and the rigid tube 501 along a first direction, which is horizontal and perpendicular to the axial direction of the screw conveying mechanism 6. Two coaxial rotating shafts are provided on both sides of the outer wall of the rigid tube 501 along the first direction, and the two rotating shafts are rotatably connected to adjacent supports 503.
[0016] Specifically, the rigid tube 501 and the elastic tubes 502 and 502 are nested together to form the discharge pipe 5, so that the material can be discharged from the conveying end of the cylinder 3 along the discharge port. Correspondingly, a feed pipe 2 is fixedly installed at the feed port to supply the material to be conveyed into the inner cavity of the cylinder and the screw conveyor mechanism.
[0017] Specifically, end plates 301 are detachably installed at both ends of the cylinder 3 to facilitate sealing at both ends of the cylinder 3.
[0018] Specifically, the spiral conveying mechanism 6 in this embodiment can be a combination of a rotating shaft and spiral blades.
[0019] In this embodiment, the elastic tube 502 is bonded to the discharge port with an adhesive, and the outer wall of the elastic tube 502 has multiple pits to accommodate the adhesive.
[0020] Specifically, the pit here can be a conical pit or a circular pit, which can be designed by those skilled in the art.
[0021] In this embodiment, an electric push rod 4 is provided on the outer wall of the cylinder 3. One end of the electric push rod 4 is rotatably connected to the support frame on the outer wall of the cylinder 3, and the other end of the electric push rod 4 is rotatably connected to the outer wall of the rigid tube 501.
[0022] Specifically, ear plates are provided at both ends of the electric push rod 4, and connecting plates are provided on the side wall of the cylinder 3 and the rigid tube 501. The connecting plates are rotatably connected to the adjacent ear plates through pins.
[0023] In this embodiment, the size of the elastic tube 502 is set such that, in the uncompressed state, the inner diameter of the elastic tube 502 is smaller than the outer diameter of the rigid tube 501.
[0024] This configuration reduces the gap between the rigid tube 501 and the flexible tube 502, thereby preventing material particles from accumulating at that location.
[0025] In this embodiment, a mounting ring (not shown in the figure) is fixedly provided at the discharge port. The mounting ring is connected to the elastic tube 502 by an adhesive, and the mounting ring and the elastic tube 502 are fixedly connected by bolts 504.
[0026] Specifically, the structure of the mounting ring can increase the area of the outer circumference of the elastic tube that is fitted and limited along the axial direction, which is conducive to achieving a stable connection of the elastic tube 502.
[0027] In this embodiment, one end of the rigid tube 501 inserted into the elastic tube 502 is located inside the cylinder 3.
[0028] Specifically, both ends of the elastic tube 502 are at a certain distance from both ends of the rigid tube, so that the inside of the elastic tube 502 will not come into direct contact with the material particles to be conveyed, thus preventing the elastic tube 502 from being worn out and leaking material during long-term contact with particles.
[0029] In this embodiment, the cross-sections of the elastic tube 502 and the rigid tube 501 are circular.
[0030] In other embodiments, the cross-sections of the elastic tube 502 and the rigid tube 501 can also be square or elliptical, which can be set by those skilled in the art.
[0031] In this embodiment, a geared motor 1 is provided at the feed inlet, and the output shaft of the geared motor 1 is inserted into the cylinder 3 to connect to the screw conveyor mechanism 6.
[0032] In other embodiments, the geared motor 1 can be replaced by a pneumatic motor or a hydraulic motor, with the output axis of the pneumatic motor or hydraulic motor extending into the cylinder. More specific structural connections can be set by those skilled in the art.
[0033] Working principle: When using this device, material is fed into the inner cavity of the cylinder 3 through the feed pipe 2, and the screw conveyor mechanism 6 transports the material in the direction of the material box outlet. The material at the outlet is discharged outward through the rigid pipe 501.
[0034] Every so often, the rigid tube 501 is oscillated relative to the cylinder 3 by the electric push rod, thereby reducing the feeding speed of the material at the rigid tube 501 and causing the material inside the cylinder 3 to rub and collide with the material at the inner end of the rigid tube 501, thereby reducing the probability of the rigid tube 501 being blocked.
[0035] The above specific embodiments should not be construed as limiting the scope of protection of this utility model. For those skilled in the art, any alternative improvements or modifications made to the embodiments of this utility model shall fall within the scope of protection of this utility model.
[0036] Any aspects of this utility model not described in detail are known to those skilled in the art.
Claims
1. A screw conveyor with a detachable discharge pipe, characterized in that, The device includes a cylindrical body, both ends of which are sealed. A screw conveyor mechanism is installed inside the cylindrical body, and both ends of the screw conveyor mechanism are rotatably connected to both ends of the cylindrical body. The cylindrical body has a feed inlet at one end along its own axis and a discharge outlet at the other end. An elastic tube is fixedly connected to the discharge port, with one end of the elastic tube fixedly inserted into the discharge port and the other end extending outward; a rigid tube is inserted into the elastic tube, with the other end of the rigid tube extending outward through the elastic tube. Two supports are fixedly provided on the outside of the cylinder. The two supports are located on both sides of the elastic tube and the rigid tube along the first direction. The first direction is horizontal and perpendicular to the axial direction of the screw conveyor mechanism. Two coaxial rotating shafts are provided on both sides of the outer wall of the rigid tube along the first direction. The two rotating shafts are rotatably connected to the adjacent supports respectively.
2. The screw conveyor with a detachable discharge pipe according to claim 1, characterized in that, The elastic tube is bonded to the discharge port with an adhesive, and the outer wall of the elastic tube has multiple pits to accommodate the adhesive.
3. The screw conveyor with a detachable discharge pipe according to claim 2, characterized in that, The discharge port is fixedly provided with an installation ring, which is connected to the elastic tube by the adhesive and is fixedly connected to the elastic tube by bolts.
4. The screw conveyor with a detachable discharge pipe according to claim 1, characterized in that, The outer wall of the cylinder is provided with an electric push rod. One end of the electric push rod is rotatably connected to the support frame on the outer wall of the cylinder, and the other end of the electric push rod is rotatably connected to the outer wall of the rigid tube.
5. The screw conveyor with a detachable discharge pipe according to claim 1, characterized in that, The dimensions of the elastic tube are set such that, in an uncompressed state, the inner diameter of the elastic tube is smaller than the outer diameter of the rigid tube.
6. The screw conveyor with a detachable discharge pipe according to claim 1, characterized in that, One end of the rigid tube inserted into the elastic tube is located inside the cylinder.
7. The screw conveyor with a detachable discharge pipe according to claim 1, characterized in that, The cross-sections of the elastic tube and the rigid tube are circular.
8. The screw conveyor with a detachable discharge pipe according to claim 1, characterized in that, The feed inlet is equipped with a geared motor, and the output shaft of the geared motor is inserted into the cylinder to connect to the screw conveyor mechanism.