Spiral conveying device

Abstract

The utility model provides a spiral conveying device which comprises a box body, a conveying rotating shaft is arranged in the box body, and a spiral blade is movably connected outside the conveying rotating shaft in a sleeved mode. The spiral blade comprises a plurality of sections, a connecting block is fixed to each section, and a plurality of connecting grooves allowing the connecting blocks to slide are formed in the conveying rotating shaft; an adjusting mechanism used for driving the connecting block to move is further arranged in the box body. According to the spiral conveying device, the size of materials conveyed by the spiral conveying device can be adjusted, and therefore the conveying requirements of different materials are met.

Description

Technical Field

[0001] The utility model belongs to the technical field of transportation equipment, and in particular relates to a screw conveying device. Background Art

[0002] The transportation of materials in industrial production, especially the transportation of powder and small particles, has clear requirements on dust flying and environmental pollution. Screw conveyors are widely used due to their simple structure, good sealing, dust-free transportation and easy operation.

[0003] However, when the existing equipment is in use, different types of conveying devices need to be used to convey different materials, the sizes of the materials are different, and the conveying speeds are different, which increases the problem of working costs. Utility Model Content

[0004] The purpose of the utility model is to provide a screw conveying device, aiming to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A screw conveying device comprises a box body, a conveying shaft is arranged in the box body, and a spiral blade is movably sleeved outside the conveying shaft;

[0007] The spiral blade includes several sections, and each section is fixed with a connecting block. The conveying shaft is provided with a plurality of connecting grooves for the connecting block to slide. The box body is also provided with an adjusting mechanism for driving the connecting block to move.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, the adjustment mechanism includes a plurality of threaded rotating rods disposed in the conveying rotating shaft, and a plurality of the connecting blocks are correspondingly threadedly connected to the threaded rotating rods;

[0010] The pitch of the threaded rotating rod corresponding to each connecting block gradually increases as it moves away from the adjusting mechanism.

[0011] Furthermore, the adjusting mechanism also includes an adjusting gear, the adjusting gear is meshed with a plurality of the threaded rotating rods at the same time, and a driving rod for driving the adjusting gear to rotate is fixed on the adjusting gear.

[0012] Furthermore, a driving mechanism for driving the conveying shaft and the spiral blade to rotate as a whole is provided on one side of the box body, and the driving mechanism includes a driving motor, a transmission worm and a transmission worm wheel, the transmission worm wheel is fixed to the conveying shaft, the transmission worm wheel is meshed with the transmission worm, and the driving motor is used to drive the conveying turbine to rotate.

[0013] Furthermore, the surface of the conveying shaft is provided with a plurality of sliding holes along its circumference, the plurality of sliding holes are correspondingly connected with the plurality of connecting grooves, and the length of the sliding holes is less than the length of the connecting grooves;

[0014] A protective baffle for blocking the sliding hole is arranged in the connecting groove, the protective baffle slides in the connecting groove and abuts against the inner wall of the connecting groove, and the protective baffle is fixedly connected to the connecting block.

[0015] Furthermore, the outer side wall of the spiral blade is in contact with the inner wall of the box body.

[0016] Furthermore, the box body is arranged at an angle, and the discharge end of the box body is located above the feed end of the box body;

[0017] The bottom of the box is rotatably connected with a telescopic connecting rod, and one end of the telescopic connecting rod away from the box is rotatably connected with a device base.

[0018] Furthermore, a feeding hopper is fixedly connected to the top end of the box body on one side close to the driving mechanism, and a discharge guide groove is fixedly connected to the bottom end of the other side of the box body.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. By driving different connecting blocks to move along the connecting groove through the adjusting mechanism, the spacing of the spiral blades can be adjusted, so that the spiral blades can transport materials of different sizes, reduce the replacement of equipment, and have better applicability and economy.

[0021] 2. The protective baffle can block the sliding hole, thereby satisfying the adjustment of the spiral blade spacing while reducing the possibility of materials falling into the connecting groove.

[0022] 3. The box is tilted so that the material can be squeezed toward the feed end under the action of gravity during the transmission process, thereby increasing the amount of material transported and further improving the transportation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of the screw conveying device of the utility model;

[0024] Figure 2It is a schematic diagram of the partial cross-section structure of the conveying shaft of the utility model;

[0025] Figure 3 It is a schematic diagram of the partial cutaway structure of the spiral blade of the utility model;

[0026] Figure 4 This is a schematic diagram of the internal structure of the gearbox of the utility model;

[0027] Figure 5 It is a schematic diagram of the structure inside the regulating box of the utility model.

[0028] In the figure: 1. Box body; 11. Feed hopper; 12. Discharge guide groove; 13. Inspection cover; 2. Conveying shaft; 21. Connecting groove; 22. Sliding hole; 3. Spiral blade; 4. Connecting block; 5. Driving mechanism; 51. Gear box; 52. Driving motor; 53. Transmission worm; 54. Transmission worm wheel; 6. Adjusting mechanism; 61. Adjusting box; 62. Adjusting gear; 63. Fixing nut; 64. Driving rod; 65. Threaded rotating rod; 7. Protective baffle; 8. Telescopic connecting rod; 9. Device base. DETAILED DESCRIPTION

[0029] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0031] Example 1

[0032] Reference Figures 1 to 3 , this embodiment 1 provides a spiral conveying device, including a box body 1, a conveying shaft 2 is arranged in the box body 1, and spiral blades 3 are arranged around the circumference of the conveying shaft 2, and the spiral blades 3 can move relatively along the conveying shaft 2. A plurality of connecting grooves 21 are provided inside the conveying shaft 2 along its axial direction, and the plurality of connecting grooves 21 are arranged at equal intervals along the circumference of the conveying shaft 2; a plurality of sliding holes 22 are also provided on the surface of the conveying shaft 2 along its axial direction, and the plurality of sliding holes 22 are arranged corresponding to the plurality of connecting grooves 21, and the length and width of each connecting groove 21 are greater than the length and width of the corresponding sliding hole 22. A connecting block 4 is slidably arranged in each connecting groove 21, and a portion of the connecting block 4 passes through the sliding hole 22 and is fixed to the inner side wall of the spiral blade 3.

[0033] Specifically, the spiral blade 3 is divided into a plurality of sections along the length direction, and the connecting grooves 21 are provided with different lengths according to the required moving range of each section of the spiral blade 3 , and each connecting groove 21 corresponds to the sliding of one section of the spiral blade 3 .

[0034] Furthermore, a protective baffle 7 is fixed to the connection block 4, and the protective baffle 7 is used to block the sliding hole 22 to reduce the occurrence of materials falling into the connection groove 21. Specifically, the protective baffle 7 is located in the connection groove 21 and can slide along the connection groove 21, and the plate surface of the protective baffle 7 abuts against the side wall of the connection groove 21. When designed, the length of the protective baffle 7 is greater than the length of the sliding hole 22, and less than the length of the connection groove 21, so that no matter where the connection block 4 slides to the sliding hole 22, the protective baffle 7 can block the sliding hole 22.

[0035] On the other hand, the outer side of the spiral blade 3 fits with the inner wall of the box body 1 , so that when the spiral blade 3 is used to transport materials, the materials are not easily accumulated in the gap between the spiral blade 3 and the inner wall of the box body 1 .

[0036] Further, see Figure 4 A driving mechanism 5 is disposed at one end of the housing 1 , and the driving mechanism 5 includes a gear box 51 , a driving motor 52 , a driving worm 53 and a driving worm wheel 54 .

[0037] The driving motor 52 is fixedly mounted on the gear box 51 by bolts, and the transmission worm 53 and the transmission worm wheel 54 are both arranged in the gear box 51. The transmission worm 53 is fixedly connected to the output end of the driving motor 52, and the transmission worm wheel 54 is fixedly connected to the end of the conveying shaft 2. The transmission worm 53 and the transmission worm wheel 54 are meshingly connected.

[0038] When in use, materials are put into the inner cavity of the box body 1, and the driving motor 52 is controlled to run, driving the transmission worm 53 to rotate. The rotation of the transmission worm 53 drives the transmission worm wheel 54 to rotate, and then drives the conveying shaft 2 to rotate. The rotation of the conveying shaft 2 drives the spiral blade 3 to rotate as a whole, and then drives the material to be transported from one end of the box body 1 to the other end.

[0039] A transmission worm 53 and a transmission worm wheel 54 are provided so that the transmission worm 53 can drive the transmission worm wheel 54 to rotate, while the transmission worm wheel 54 cannot drive the transmission worm 53 to rotate, thereby preventing the conveying shaft 2 from self-rotation or reversal due to factors such as weight, and thus being safer and more stable; at the same time, this connection method can increase the output torque of the drive motor 52, thereby increasing the operating power of the conveying shaft 2, reducing the occurrence of jamming and blocking during operation of the conveying device of the present application, and improving the stability of the operation of the device.

[0040] Example 2

[0041] The difference between Example 2 and Example 1 is that, referring to Figures 1 to 5 An adjustment mechanism 6 is provided at one end of the conveying shaft 2. The adjustment mechanism 6 includes an adjustment box 61, an adjustment gear 62, a fixing nut 63, a driving rod 64 and a plurality of threaded rotating rods 65.

[0042] The adjustment box 61 is arranged at one end of the conveying shaft 2 where the driving mechanism 5 is arranged. The ends of the plurality of threaded rotating rods 65 and the adjustment gear 62 are arranged in the adjustment box 61. The threaded rotating rods 65 are arranged in the conveying shaft 2 and penetrate the conveying shaft 2. The adjustment gear 62 is also meshed with one end of the plurality of threaded rotating rods 65 located in the adjustment box 61. A connection block 4 is threadedly sleeved on the outside of each threaded rotating rod 65. The fixing nut 63 is fixedly connected to the outside of the adjustment box 61. One end of the driving rod 64 is fixedly connected to the adjustment gear 62, and the other end penetrates the adjustment box 61 and extends to the outside of the fixing nut 63.

[0043] It should be noted that the threaded turning rod 65 is provided with threads of different pitches according to the required moving range of different sections of the spiral blade 3, that is, the closer to the driving mechanism 5 a section of the spiral blade 3 is, the smaller the pitch of the thread of the threaded turning rod 65 connected to the connecting block 4 is, so as to achieve different moving speeds of the spiral blades 3 of different sections, so that the spiral blades 3 of different sections still maintain the same pitch after moving.

[0044] When conveying different materials, according to the particle size of the materials, a wrench is used to fix the fixing nut 63, so that the adjustment box 61 is fixed, so that it is not easy to rotate during the subsequent adjustment process, and then another wrench or a motor is used to drive the driving rod 64 to rotate, and the adjustment gear 62 is driven to rotate by the rotation of the driving rod 64, and all the threaded rotating rods 65 are driven to rotate at the same time by the rotation of the adjustment gear 62, and all the connection blocks 4 are driven to move by the rotation of all the threaded rotating rods 65. The movement of the connection block 4 drives the corresponding section of the spiral blade 3 to move, so that the spacing between the spiral blades 3 is adjusted.

[0045] The threaded rotating rods 65 with different pitches can drive the corresponding spiral blades 3 to move at different speeds, so that the spacing between the spiral blades 3 remains the same during movement. Through the above operation, the spacing between the spiral blades 3 is appropriately adjusted according to the particle size of the material. This solves the problem that when the existing equipment is used, different types of equipment need to be used to work due to conveying different materials, different sizes of materials, and different conveying speeds, which increases the working cost.

[0046] Example 3

[0047] The difference between Example 3 and Example 2 is that, Figure 1The box 1 is gradually tilted away from the ground along its axis, and the driving mechanism 5 is arranged at one end of the box 1 close to the ground. The bottom of the box 1 is rotatably connected to a telescopic connecting rod 8, and the end of the telescopic connecting rod 8 away from the box 1 is rotatably connected to a device base 9.

[0048] When in use, the tilt angle of the box body 1 is adjusted by the telescopic connecting rod 8, thereby adjusting the conveying height of the device, so that the device can meet the working requirements of different transport heights and improve the applicability of the device.

[0049] A feeding hopper 11 is fixedly connected to the top of the box body 1 on one side close to the driving mechanism 5, a discharge guide chute 12 is fixedly connected to the other side of the box body 1, and an inspection cover plate 13 is fixedly installed on the side of the box body 1 by bolts.

[0050] When in use, the material is fed into the box body 1 through the feeding hopper 11, and after being transported, it is discharged through the discharge guide chute 12. The provision of the feeding hopper 11 can facilitate the feeding of the device, and the provision of the discharge guide chute 12 can reduce the phenomenon of material splashing when the device is discharging. By providing the inspection cover 13, it is easier for the staff to maintain and repair the components in the box body 1.

[0051] In summary, the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A screw conveying device, characterized in that: It comprises a box body (1), a conveying shaft (2) is arranged inside the box body (1), and a spiral blade (3) is movably sleeved outside the conveying shaft (2); The spiral blade (3) comprises a plurality of sections, and each section is fixed with a connecting block (4); the conveying shaft (2) is provided with a plurality of connecting grooves (21) for the connecting block (4) to slide; and an adjusting mechanism (6) for driving the connecting block (4) to move is also provided in the box body (1).

2. A screw conveying device according to claim 1, characterized in that: The adjusting mechanism (6) comprises a plurality of threaded rotating rods (65) arranged in the conveying rotating shaft (2), and a plurality of the connecting blocks (4) are correspondingly threadedly connected to the threaded rotating rods (65); The pitch of the threaded rotating rod (65) correspondingly connected to each of the connecting blocks (4) gradually increases as it moves away from the adjusting mechanism (6).

3. A screw conveying device according to claim 2, characterized in that: The adjusting mechanism (6) further comprises an adjusting gear (62), wherein the adjusting gear (62) is meshed with a plurality of the threaded rotating rods (65) at the same time, and a driving rod (64) for driving the adjusting gear (62) to rotate is fixed on the adjusting gear (62).

4. A screw conveying device according to claim 1, characterized in that: A driving mechanism (5) for driving the conveying shaft (2) and the spiral blade (3) to rotate as a whole is arranged on one side of the box body (1); the driving mechanism (5) comprises a driving motor (52), a transmission worm (53) and a transmission worm wheel (54); the transmission worm wheel (54) is fixed to the conveying shaft (2); the transmission worm wheel (54) is meshed with the transmission worm (53); and the driving motor (52) is used to drive the transmission worm (53) to rotate.

5. A screw conveying device according to claim 1, characterized in that: The surface of the conveying shaft (2) is also provided with a plurality of sliding holes (22) along its circumference, the plurality of sliding holes (22) are correspondingly connected to the plurality of connecting grooves (21), and the length of the sliding holes (22) is less than the length of the connecting grooves (21); A protective baffle (7) for blocking the sliding hole (22) is provided in the connecting groove (21); the protective baffle (7) slides in the connecting groove (21) and abuts against the inner wall of the connecting groove (21); the protective baffle (7) is fixedly connected to the connecting block (4).

6. A screw conveying device according to claim 1, characterized in that: The outer wall of the spiral blade (3) is in contact with the inner wall of the box body (1).

7. A screw conveying device according to claim 1, characterized in that: The box body (1) is arranged obliquely, and the discharge end of the box body (1) is located above the feed end of the box body (1); The bottom of the box body (1) is rotatably connected to a telescopic connecting rod (8), and one end of the telescopic connecting rod (8) away from the box body (1) is rotatably connected to a device base (9).

8. A screw conveying device according to claim 1, characterized in that: A feeding hopper (11) is fixedly connected to the top end of the box body (1) on one side close to the driving mechanism (5), and a discharge guide groove (12) is fixedly connected to the bottom end of the other side of the box body (1).

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