Vertical screw conveyor

Abstract

The utility model relates to the technical field of spiral conveying devices, and discloses a vertical spiral conveyor which comprises a first pipeline and a second pipeline, rotatable spiral rods are arranged in the first pipeline and the second pipeline, spiral blades are fixedly connected to the spiral rods, and the spiral blades are arranged on the first pipeline and the second pipeline. A first flange and a second flange are fixedly installed at the connecting positions of the outer side faces of the first pipeline and the second pipeline correspondingly, and four sets of limiting connecting assemblies are annularly and evenly distributed on the first flange and the second flange. According to the vertical spiral conveyor, the first flange and the second flange are arranged at the joint of the first pipeline and the second pipeline, when the vertical spiral conveyor needs to adapt to a long conveying distance, the first pipeline and the second pipeline are in butt joint rapidly, and then the first pipeline and the second pipeline which are connected are limited and fixed through the limiting connecting assembly; the conveying distance can be quickly prolonged, and meanwhile the stability of the first pipeline and the second pipeline after connection is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of screw conveying devices, in particular to a vertical screw conveyor. Background Art

[0002] Screw conveyor, commonly known as auger, is a continuous conveying equipment, mainly used for conveying powder, granular and small block materials. Screw conveyor has the advantages of simple structure, small cross-sectional area, good sealing performance, multi-point feeding and unloading in the middle, safe and convenient operation and low manufacturing cost, so it is widely used. When conveying materials, the distance between the spiral blades and the adjacent spiral blades in the axial direction of the screw is the same, that is, equal pitch screw conveyor. During operation, the spiral blades will rub against the inner wall of the trough surrounding the spiral blades, and part of the material will not be able to be conveyed forward under the push of the spiral blades, which will cause a certain amount of conveying loss, which will easily lead to blockage. In the event of blockage, the usual practice is to stop feeding, and then continue feeding after the material blockage is alleviated, which will reduce the transmission efficiency.

[0003] In order to solve the above technical problems, a Chinese invention patent with application publication number CNl04370066A discloses a gradually variable pitch screw conveyor. The invention patent adopts a gradually variable pitch. One end of the feed port is prone to material accumulation and blockage. The pitch of the spiral blade at the feed end is relatively small. When the screw speed remains unchanged, the conveying speed at the feed end is the slowest; the pitch of the spiral blade gradually increases toward the discharge section, and the conveying speed gradually increases, which can effectively achieve the conveying effect of slow feeding and fast discharging, and effectively avoid the occurrence of material blockage.

[0004] Although this technical solution solves the problem that the existing screw conveyor is prone to material blockage during use, which leads to reduced conveying efficiency, in actual use, the distance between the feed end and the discharge end is often not fixed, and it is necessary to select screw conveyors of different lengths according to actual use conditions. The length of the screw conveying mechanism in the above solution is fixed, which is not convenient to use. Utility Model Content

[0005] The purpose of the utility model is to provide a vertical screw conveyor to solve the problems raised in the above background technology.

[0006] The present application embodiment adopts the following technical solutions:

[0007] A vertical screw conveyor, comprising a first pipe and a second pipe. A rotatable screw rod is arranged inside the first pipe and the second pipe. The screw rod is fixedly connected with screw blades. At the connection of the outer sides of the first pipe and the second pipe, a first flange and a second flange are respectively fixedly installed. Four groups of limit connection components are annularly and evenly distributed on the first flange and the second flange.

[0008] Beneficial effects:

[0009] In the utility model, by arranging the first flange and the second flange at the connection of the first pipe and the second pipe, when it is necessary to adapt to a longer conveying distance, the first pipe and the second pipe are quickly butted, and then the connected first pipe and second pipe are limited and fixed through the limit connection components, so that the extension of the conveying distance can be quickly realized, and at the same time, the stability of the first pipe and the second pipe after connection is ensured.

[0010] Preferably, the limit connection component includes a pressing rod and a connecting column inserted on the first flange and the second flange. The pressing rod is slidably connected inside the first flange. One end of the pressing rod located inside the first flange is fixedly connected with a pressing plate. A sliding cavity for the sliding of the pressing plate is opened inside the first flange;

[0011] A limit cavity is opened inside the connecting column. The limit cavity is communicated with the sliding cavity and the inner side walls are in the same plane. A locking plate is slidably installed inside the limit cavity. Two sliding grooves are opened on the locking plate. Guide rods are arranged inside the sliding grooves. The guide rods can elastically push the locking plate to displace into the sliding cavity.

[0012] Preferably, one end of the guide rod is located inside the sliding groove, the other end of the guide rod is fixedly installed on the inner side wall of the limit cavity, a spring is sleeved outside the guide rod, one end of the spring is in contact with the right side wall of the locking plate, and the other end of the spring is fixedly installed on the inner side wall of the limit cavity.

[0013] Preferably, two symmetrically arranged guide sliding plates are installed on one side wall of the locking plate. Guide sliding grooves adapted to the guide sliding plates are opened inside the limit cavity. The guide sliding plates are L-shaped plates. One end of the guide sliding plate is fixedly connected with the locking plate, and the other end of the guide sliding plate is slidably arranged inside the guide sliding groove.

[0014] Preferably, a feed pipe is fixedly installed at the bottom of one side wall of the first pipe. The feed pipe is communicated with the inside of the first pipe. A discharge pipe is fixedly installed at the bottom of one side wall of the second pipe. The discharge pipe is communicated with the inside of the second pipe. A driving motor for driving the screw rod to rotate is fixedly installed at the top of the second pipe through a mounting frame. Description of the drawings

[0015] The accompanying drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0016] Figure 1 is a schematic cross-sectional structure diagram of the whole of the present utility model;

[0017] Figure 2 of the present utility model Figure 1 is an enlarged schematic structure diagram of part A therein;

[0018] Figure 3 of the present utility model Figure 2 is an enlarged schematic structure diagram of part B therein.

[0019] In the figure: 1, the first pipeline; 2, the second pipeline; 3, the feed pipe; 4, the discharge pipe; 5, the screw rod; 6, the screw blade; 7, the driving motor; 8, the first flange; 9, the second flange; 10, the connecting column; 11, the pressing rod; 12, the guiding rod; 13, the spring; 14, the locking plate; 15, the sliding groove; 16, the guiding sliding plate; 17, the guiding sliding groove; 18, the pressing plate. Detailed implementation manners

[0020] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be clearly and completely described below in conjunction with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0021] The following will, in conjunction with the drawings, detail the technical solutions provided by each embodiment of the present application.

[0022] Please refer to Figures 1-3 , a vertical screw conveyor; including a first pipeline 1 and a second pipeline 2, a rotatable screw rod 5 is arranged inside the first pipeline 1 and the second pipeline 2, screw blades 6 are fixedly connected to the screw rod 5, first flanges 8 and second flanges 9 are respectively fixedly installed at the connection positions on the outer sides of the first pipeline 1 and the second pipeline 2, and four groups of limit connection components are evenly distributed in a ring on the first flanges 8 and the second flanges 9;

[0023] The limit connection component includes a pressing rod 11 and a connecting column 10 inserted on the first flange 8 and the second flange 9. The pressing rod 11 is slidably connected inside the first flange 8. A pressing plate 18 is fixedly connected to one end of the pressing rod 11 located inside the first flange 8, and a sliding cavity for the sliding of the pressing plate 18 is opened inside the first flange 8;

[0024] A limiting cavity is formed inside the connecting column 10. The limiting cavity communicates with the sliding cavity and their inner side walls are in the same plane. A locking plate 14 is slidably installed in the limiting cavity. Two sliding grooves 15 are formed on the locking plate 14, and guide rods 12 are arranged in the sliding grooves 15.

[0025] One end of the guide rod 12 is located inside the sliding groove 15, and the other end of the guide rod 12 is fixedly installed on the inner side wall of the limiting cavity. A spring 13 is sleeved outside the guide rod 12. One end of the spring 13 is in contact with the right side wall of the locking plate 14, and the other end of the spring 13 is fixedly installed on the inner side wall of the limiting cavity.

[0026] Two symmetrically arranged guide sliding plates 16 are installed on one side wall of the locking plate 14. Guide sliding grooves 17 adapted to the guide sliding plates 16 are formed in the limiting cavity. The guide sliding plates 16 are L-shaped plates. The end of the longer part of the guide sliding plate 16 is fixedly connected to the locking plate 14, and the shorter part of the guide sliding plate 16 is slidably arranged in the guide sliding groove 17.

[0027] A feed pipe 3 is fixedly installed at the bottom of one side wall of the first pipe 1. The feed pipe 3 communicates with the inside of the first pipe 1. A discharge pipe 4 is fixedly installed at the bottom of one side wall of the second pipe 2. The discharge pipe 4 communicates with the inside of the second pipe 2. A driving motor 7 for driving the screw rod 5 to rotate is fixedly installed at the top of the second pipe 2 through a mounting frame.

[0028] When the required conveying distance is long, the staff first aligns the first pipe 1 and the second pipe 2, and then manually presses the locking plate 14 to make the locking plate 14 completely located inside the connecting column 10. Then the connecting column 10 passes through the second flange 9 first, and then through the first flange 8. When the limiting cavity communicates with the sliding cavity, under the action of the spring 13, the locking plate 14 can be pushed out into the sliding cavity, and at this time, the limiting of the connecting column 10 is completed, thereby ensuring the stability after the connection of the first pipe 1 and the second pipe 2.

[0029] When the conveying distance is relatively short, by removing one of the first pipe 1 and the second pipe 2, it can adapt to the short-distance material conveying, and it is more convenient and flexible to use. After the replacement is completed, just replace the corresponding screw rod 5.

[0030] The installation structure of the screw rod 5 specifically includes a transmission shaft rotatably connected to the first pipe 1 and the second pipe 2. The transmission shaft and the screw rod are connected by a key or other rotatable transmission structures that are convenient for disassembly and assembly. One of the transmission shafts is connected to the driving motor 7 (since the above structures are all prior arts, they are not shown in the drawings). Through the above structure, the detachable connection of the screw rod 5 can be realized, which is convenient for adapting to the adjusted length of the first pipe 1 or the second pipe 2.

[0031] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

1. A vertical screw conveyor, comprising a first pipe and a second pipe, wherein a rotatable screw rod is disposed inside the first pipe and the second pipe, and a spiral blade is fixedly connected to the screw rod, characterized in that: A first flange and a second flange are fixedly mounted at the connection points of the outer sides of the first pipeline and the second pipeline, respectively. Four groups of position-limiting connection components are evenly distributed in a ring shape on the first flange and the second flange.

2. The vertical screw conveyor according to claim 1, characterized in that: The limit connection assembly includes a pressing rod and a connecting column plugged into the first flange and the second flange, the pressing rod is slidably connected to the inside of the first flange, one end of the pressing rod located inside the first flange is fixedly connected to a pressing plate, and a sliding cavity for sliding of the pressing plate is opened inside the first flange; A limiting cavity is provided inside the connecting column, the limiting cavity is communicated with the sliding cavity and the inner side walls are in the same plane, a locking plate is slidably installed in the limiting cavity, two sliding grooves are provided on the locking plate, a guide rod is provided in the sliding groove, and the guide rod can elastically push the locking plate to move into the sliding cavity.

3. The vertical screw conveyor according to claim 2, characterized in that: One end of the guide rod is located inside the slide groove, and the other end of the guide rod is fixedly mounted on the inner wall of the limiting cavity. A spring is sleeved on the outer side of the guide rod, one end of the spring contacts the right side wall of the locking plate, and the other end of the spring is fixedly mounted on the inner wall of the limiting cavity.

4. The vertical screw conveyor according to claim 3, characterized in that: Two mutually symmetrical guide slides are installed on one side wall of the locking plate, and a guide groove matched with the guide slide is opened in the limiting cavity. The guide slide is an L-shaped plate, one end of the guide slide is fixedly connected to the locking plate, and the other end of the guide slide is slidably set in the guide groove.

5. The vertical screw conveyor according to claim 1, characterized in that: A feed pipe is fixedly installed at the bottom of one side wall of the first pipe, and the feed pipe is connected to the interior of the first pipe. A discharge pipe is fixedly installed at the bottom of one side wall of the second pipe, and the discharge pipe is connected to the interior of the second pipe. A driving motor for driving the spiral rod to rotate is fixedly installed on the top of the second pipe through a mounting frame.

Images