A spiral universal joint conveying device

Abstract

The utility model belongs to the field of material conveying devices, and specifically relates to a spiral universal joint conveying device, which includes a conveying hose and a spiral conveyor belt; one end of the conveying hose is provided with a driving motor, and the other end is connected to a feed port provided with a rotating shaft, the spiral conveyor belt passes through the interior of the conveying hose, and one end is transmission-connected to the rotating shaft, and the other end is transmission-connected to the driving motor; the spiral conveyor belt includes multiple spiral short sections for conveying materials, the spiral short sections include a central axis and spiral blades connected outside the central axis, and any two adjacent spiral short sections are connected in series through a universal joint; the diameter of the spiral blade is smaller than the diameter of the conveying hose, so that the radial upper and lower ends of the spiral blade and the tube wall of the conveying hose are both left with gaps for the spiral blade to rotate. The utility model can avoid material accumulation and blockage of large particles in the conveying hose.

Description

Technical Field

[0001] The utility model belongs to the field of material conveying devices, and in particular relates to a spiral universal joint conveying device. Background Art

[0002] At present, the device for transporting coal sludge slag usually adopts a screw conveyor whose conveying pipe can be bent at multiple angles, such as a screw conveying device with arbitrary angle bending disclosed by the authorization announcement number CN205381658U, which includes a screw feed head and a screw discharge head, a feed hopper is arranged on the screw feed head, a drive motor and a discharge port are arranged on the screw discharge head, a hose is used as a conveying pipeline between the screw feed head and the screw discharge head, multiple transmission shafts are arranged in the hose, and each transmission shaft is provided with a spiral sheet (i.e., a spiral blade), and each transmission shaft, between the transmission shaft and the spiral feed head, and between the transmission shaft and the spiral discharge head are connected by a universal joint to form a spiral conveyor belt; the drive motor and the spiral discharge head are connected by a sprocket and a chain. When working, add materials to the feed hopper, the materials enter the hose, and under the action of the drive motor, the transmission shaft drives the spiral sheet to rotate, and under the push of the spiral sheet, the materials are transported forward to the discharge port, and finally the material transportation is completed.

[0003] However, the coal sludge contains different components such as dry coal, wet coal, coal sludge and coal water, and has a certain viscosity, so it is easy to adhere to the pipe wall during transportation. Since the diameter of the spiral blade in the above-mentioned spiral conveying device with arbitrary angle bending matches the inner diameter of the hose, as the conveying distance increases and the conveying time increases, the adhesion of the coal sludge will continue to increase, causing the accumulation of materials in the hose, which is easy to cause the hose to be blocked. Utility Model Content

[0004] The utility model provides a spiral universal joint conveying device to solve the problem that the spiral conveying device in the prior art is easily blocked.

[0005] In order to solve the above problems, the utility model provides a spiral universal joint conveying device adopting the following technical solutions: a spiral universal joint conveying device, comprising a conveying hose and a spiral conveyor belt, characterized in that a driving motor is arranged at one end of the conveying hose, and a feeding port provided with a rotating shaft is connected to the other end, the spiral conveyor belt passes through the interior of the conveying hose, and one end is transmission-connected to the rotating shaft, and the other end is transmission-connected to the driving motor; the spiral conveyor belt comprises a plurality of spiral short sections for conveying materials, the spiral short sections comprise a central shaft and spiral blades connected outside the central shaft, and any two adjacent spiral short sections are connected in series through a universal joint;

[0006] The diameter of the spiral blade is smaller than the diameter of the conveying hose, so that gaps for the spiral blade to rotate are left between the radial upper and lower ends of the spiral blade and the tube wall of the conveying hose.

[0007] The beneficial effects of the utility model are as follows: the utility model uses a plurality of spiral short sections formed by connecting a central tube and spiral blades in series through universal joints to transport materials. The central tube can provide radial support for the spiral blades, which prevents the spiral blades from breaking due to excessive bending or uneven force, so that the entire conveying device has good bending ability. In addition, since the diameter of the spiral blades is smaller than the diameter of the conveying hose, the instantaneous amount of material in the same cross section of the conveying hose at the same time is reduced, and the amount of material passing through the same cross section is less than the amount of material that can be allowed to pass through the cross section of the conveying hose, thereby avoiding the accumulation of materials in the conveying hose; further, while the spiral conveyor belt rotates around the central axis driven by the driving motor, it realizes rotation under the action of rotational inertia and its own gravity, and can stir and disperse the agglomerated materials, further preventing blockage in the conveying hose.

[0008] Furthermore, the ratio between the diameter of the spiral blade and the diameter of the conveying hose is 2:3.

[0009] Beneficial effect: The diameter of the spiral blade is smaller than the diameter of the conveying hose, which increases the gap between the spiral blade and the conveying hose, allowing the largest particles in the conveying material to pass through.

[0010] Furthermore, the delivery hose is a rubber tube.

[0011] Beneficial effect: the rubber tube can withstand the severe friction and heat generated by the friction with the tube wall during the transportation of a large number of particles and abrasive substances in the coal slime, slowing down the aging of the conveying hose and making it more durable.

[0012] Furthermore, the axial lengths of all the spiral subsections are equal.

[0013] Beneficial effect: The spiral short sections of the entire spiral universal joint conveying device have the same structure, and only one type of spiral short section needs to be processed during processing, which is convenient for processing.

[0014] Furthermore, the spiral short sections located at both ends of the spiral conveyor belt are respectively connected to a universal joint positioning joint and a rotating shaft joint through universal joints, and the universal joint positioning joint is connected to a motor joint for connecting the output shaft of the driving motor; the universal joint positioning joint is provided with a plug post, and a first socket inside which is plug-in compatible with the universal joint; the motor joint is provided with a second socket for plug-in compatible with the output shaft of the driving motor and a third socket for plug-in compatible with the plug post; the rotating shaft joint has a fourth socket for plug-in compatible with the universal joint and a fifth socket for plug-in compatible with the rotating shaft; the universal joint positioning joint, the plug post, the motor joint and the rotating shaft joint are all provided with radial through holes at the corresponding plug-in positions.

[0015] Beneficial effect: It is convenient to connect the spiral conveyor belt with the driving motor and the rotating shaft.

[0016] Furthermore, the helix angle and blade inclination angle of the spiral blade are both inclined toward the conveying direction.

[0017] Beneficial effects: It facilitates the transportation and lifting of materials in the conveying hose, reduces the occurrence of material jamming in the conveying hose, and improves the conveying efficiency.

[0018] Furthermore, the interior of the central shaft is hollow.

[0019] Beneficial effect: while providing the spiral pup section with bending resistance and structural strength, the weight of the spiral pup section and the spiral conveyor belt can be reduced.

[0020] Furthermore, the universal joint is one of a cross-axis universal joint, a spline universal joint, and a ball universal joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] By reading the detailed description below with reference to the accompanying drawings, the above and other purposes, features and advantages of the exemplary embodiments of the present invention will become easy to understand. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0022] Figure 1 It is a structural schematic diagram of a spiral universal joint conveying device;

[0023] Figure 2 It is a schematic diagram of the spiral short section structure;

[0024] Figure 3 is a schematic diagram of the universal joint structure;

[0025] Figure 4 It is a schematic diagram of the connection between the spiral short section and the universal joint;

[0026] Figure 5 It is a structural schematic diagram of the universal joint positioning joint;

[0027] Figure 6 This is a schematic diagram of the motor connector;

[0028] Figure 7 It is a schematic diagram of a rotating shaft joint;

[0029] Figure 8 for Figure 1 The enlarged schematic diagram of point A in the middle;

[0030] Fig. 9 It is a cross-sectional schematic diagram of the self-rotation and revolving of the spiral conveyor belt in the conveying hose;

[0031] Description of reference numerals:

[0032] 1. Center axis; 2. Spiral blade; 3. Conveying hose; 4. Universal joint; 5. Spiral short section; 6. Spiral conveyor belt; 7. Feed inlet; 8. Rubber tube copper joint; 9. Rotating shaft; 10. Output shaft of driving motor; 11. Universal joint positioning joint; 12. Rotating shaft joint; 13. Motor joint; 14. Plug column; 15. First socket; 16. Second socket; 17. Third socket; 18. Fourth socket; 19. Fifth socket; 20. Radial perforation. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0034] like Figure 1 As shown, the spiral universal joint conveying device can convey materials such as dry coal, wet coal, coal slime, coal water, etc., and includes a conveying hose 3, a spiral blade 2, a central shaft 1, a universal joint 4 and a driving motor.

[0035] The delivery hose 3 is made of wear-resistant rubber material. One end of the delivery hose 3 is provided with the above-mentioned driving motor, and the other end is connected to a feed port 7 provided with a rotating shaft 9, and rubber tube copper joints 8 are provided at both ends of the delivery hose 3.

[0036] The spiral blade 2 is made of carbon steel, and the spiral pitch angle and blade inclination angle of the spiral blade 2 are inclined toward the conveying direction. The central shaft 1 is a 32 seamless steel pipe, which is hollow inside. The central shaft 1 is welded to the central hole of the spiral blade 2 and forms a spiral short section with the spiral blade 2. The structure of the spiral short section is as follows: Figure 2 As shown. The spiral universal joint conveying device includes a plurality of spiral short sections with equal axial lengths. Any two adjacent spiral short sections 5 are connected in series through a universal joint 4. In this embodiment, the universal joint is a cross-shaped universal joint with a larger movable angle. Of course, in other embodiments, the universal joint may also be a spherical universal joint or a spline universal joint. When a spline universal joint is used, it can be directly processed into a whole with the spiral short section. In this embodiment, the two ends of the universal joint are respectively plugged into the central axes of two adjacent spiral short sections and then fixed by radial bolts. Of course, in other embodiments, spiral short sections of different lengths may be connected in series through universal joints. As shown Figure 3 and Figure 4As shown, after connecting multiple spiral short sections 5, a spiral conveyor belt 6 is formed, and the spiral conveyor belt passes through the inside of the conveying hose. The spiral short sections 5 at both ends of the spiral conveyor belt 6 pass through two rubber tube copper joints 8, and are respectively connected to the rotating shaft 9 and the output shaft 10 of the driving motor. In other embodiments, the central shaft can also be a solid shaft, in which case slots corresponding to the universal joints are respectively provided at both ends of the central shaft.

[0037] Specifically, the spiral short sections 5 at both ends of the spiral conveyor belt 6 are respectively connected to the universal joint positioning joint 11 and the rotating shaft 9 joint through the universal joint 4, and the universal joint positioning joint 11 is connected to the motor joint 13 for connecting the output shaft 10 of the driving motor. Figure 5 As shown, the universal joint positioning joint 11 has a plug post 14, and has a first plug hole 15 inside that is plugged and matched with the universal joint 4; Figure 6 As shown, the motor connector 13 is provided with a second plug hole 16 for plugging and matching with the output shaft 10 of the driving motor and a third plug hole 17 for plugging and matching with the plug post 14; Figure 7 As shown, the rotating shaft joint 12 has a fourth socket 18 for plugging and mating with the universal joint 4 and a fifth socket 19 for plugging and mating with the rotating shaft 9; the universal joint positioning joint 11, the plug column 14, the motor joint 13 and the rotating shaft joint 12 are all provided with radial through holes 20 at the corresponding plug-in mating positions.

[0038] By using universal joints 4 with different limit allowable angles, the maximum bending degree of the spiral conveyor belt 6 is different. For example, the limit allowable angle of the universal joint 4 used is 30 degrees. Of course, in other embodiments, the limit allowable angle of the universal joint 4 can also be 20 degrees or 15 degrees. The larger the limit allowable angle of the universal joint 4, the greater the maximum bending degree of the spiral conveyor belt 6. In actual operation of the device, universal joints 4 with different limit allowable angles can be selected according to the complexity and ruggedness of the terrain.

[0039] like Figure 8 As shown, the diameter of the spiral blade 2 is smaller than the diameter of the conveying hose 3. In this embodiment, the ratio of the diameter of the spiral blade 2 to the diameter of the conveying hose 3 is 2:3. Of course, in other embodiments, the ratio of the diameter of the spiral blade 2 to the diameter of the conveying hose 3 can also be 80:110. With such a ratio, the gap between the spiral blade 2 and the wall of the conveying hose 3 is larger than the largest particle of the conveyed material. Fig. 9As shown, the spiral conveyor belt 6 rotates together with the driving motor. Since the diameter of the conveying hose 3 is larger than the diameter of the spiral conveyor belt 6 and the spiral conveyor belt 6 has no structural support in the conveying hose 3, the spiral conveyor belt 6 will rotate in the conveying hose 3 under the action of its own gravity and inertia, stirring and breaking up the agglomerated materials, making the conveying hose 3 less likely to be blocked. In addition, unlike the prior art where the diameter of the conveying hose 3 matches that of the spiral blade 2, in the present application, the diameter of the spiral blade 2 is reduced, so that the amount of material passing through the same cross section is smaller than the cross-sectional area of ​​the conveying hose 3, and the instantaneous amount of material in the same cross section at the same time is reduced, thereby avoiding the accumulation of materials in the conveying hose 3.

Claims

1. A spiral universal joint conveying device, comprising a conveying hose and a spiral conveyor belt, characterized in that: A driving motor is provided at one end of the conveying hose, and a feeding port provided with a rotating shaft is connected to the other end. A spiral conveyor belt passes through the interior of the conveying hose, and one end is transmission-connected to the rotating shaft, and the other end is transmission-connected to the driving motor. The spiral conveyor belt includes a plurality of spiral short sections for conveying materials, and the spiral short sections include a central shaft and spiral blades connected to the outside of the central shaft, and any two adjacent spiral short sections are connected in series via a universal joint. The diameter of the spiral blade is smaller than the diameter of the conveying hose, so that a gap is left between the radial upper and lower ends of the spiral blade and the tube wall of the conveying hose for the spiral blade to orbit.

2. The screw-type universal joint conveying device according to claim 1, characterized in that: The ratio between the diameter of the spiral blade and the diameter of the conveying hose is 2:

3.

3. The screw-type universal joint conveying device according to claim 1, characterized in that: The delivery hose is a rubber tube.

4. The screw-type universal joint conveying device according to claim 1, characterized in that: The axial lengths of all the spiral short sections are equal.

5. The spiral universal joint conveying device according to any one of claims 1 to 4, characterized in that: The spiral short sections located at both ends of the spiral conveyor belt are respectively connected to the universal joint positioning joint and the rotating shaft joint through universal joints, and the universal joint positioning joint is connected to the motor joint for connecting the output shaft of the driving motor; the universal joint positioning joint is provided with a plug post, and a first socket inside which is plug-matched with the universal joint; the motor joint is provided with a second socket for plug-matching with the output shaft of the driving motor and a third socket for plug-matching with the plug post; the rotating shaft joint has a fourth socket for plug-matching with the universal joint and a fifth socket for plug-matching with the rotating shaft; the universal joint positioning joint, the plug post, the motor joint and the rotating shaft joint are all provided with radial through holes at the corresponding plug-matching positions.

6. The spiral universal joint conveying device according to any one of claims 1 to 4, characterized in that: The helical pitch angle and blade inclination angle of the spiral blade are both inclined toward the conveying direction.

7. The spiral universal joint conveying device according to any one of claims 1 to 4, characterized in that: The interior of the central shaft is hollow.

8. The spiral universal joint conveying device according to any one of claims 1 to 4, characterized in that: The universal joint is one of a cross-axis universal joint, a spline universal joint and a ball universal joint.

Images