A powder transfer device

Abstract

The present application relates to the field of powder transportation, and discloses a powder transfer device, a driving shaft and a dredging rod, the driving shaft is rotationally connected at the bending part of the L-shaped pipe, and one end of the driving shaft at least partially extends out of the L-shaped pipe and is connected with a driving member, the dredging assembly is multiple, and is distributed on the driving shaft along the axial direction of the driving shaft, the side wall of the dredging rod is provided with a sliding groove extending along the axial direction of the dredging rod, the driving shaft can move along the sliding groove relative to the dredging rod, the dredging rod is a hollow rod, and a driving gear is arranged in the hollow rod, the driving gear is sleeved on the driving shaft, the inner wall of the dredging rod is provided with a driving gear slot, the driving gear is engaged with the driving gear slot, and the driving shaft drives the driving gear to rotate; the powder transfer device can move and rotate the dredging rod, so that the accumulated powder in the pipeline is scattered, and the pipeline is prevented from being blocked.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of powder transportation, in particular to a powder transfer device. BACKGROUND

[0002] In actual industrial production process, the powder will be transported in various shaped pipelines. When the powder passes through the corner of the pipeline, its flowability will be greatly reduced, and then it will accumulate and clog, thus reducing the transportation speed of the powder. In severe cases, it can cause blockage of the pipeline. Especially for the vertically arranged L-shaped pipeline, the powder is prone to accumulate in the vertical part of the L-shaped pipeline during transportation, and finally clog the L-shaped pipeline, which seriously affects the production efficiency.

[0003] Chinese patent application CN113716262A discloses a powder conveying pipeline with automatic dredging function. The scheme can loosen the powder clogged in the L-shaped pipeline of the powder conveying system, so that the loosened powder falls and is collected by the collecting assembly, and then the powder is re-conveyed into the powder conveying system. However, the overall space occupied by this scheme is large, and it cannot be set in some narrow spaces. SUMMARY

[0004] The present application provides a powder transfer device, which aims to solve the problem of large space occupation of the dredging structure in the related art.

[0005] The powder transfer device of the present application comprises a driving shaft and a dredging rod.

[0006] The driving shaft is rotationally connected at the bend of the L-shaped pipeline, and one end of the driving shaft at least partially protrudes from the L-shaped pipeline and is connected with a driving member.

[0007] The dredging assembly has a plurality of components, which are spaced apart along the axial direction of the driving shaft and arranged on the driving shaft. The side wall of the dredging rod is provided with a sliding groove extending in the axial direction of the dredging rod. The driving shaft can move relative to the dredging rod along the sliding groove. The dredging rod is a hollow rod, and a driving gear is arranged inside the hollow rod. The driving gear is sleeved on the driving shaft. The inner wall of the dredging rod is provided with a driving gear slot. The driving gear is engaged with the driving gear slot. The driving shaft drives the driving gear to rotate.

[0008] Preferably, two limiting grooves are arranged on the side wall of the dredging rod, and a limiting member is slidably arranged in each limiting groove. The limiting member moves along the extension direction of the limiting groove. A limiting rod is arranged beside the dredging rod, and the limiting rod is connected with the L-shaped pipeline. The limiting rod abuts against the limiting member in the limiting groove, so as to limit the movement of the dredging rod.

[0009] Preferably, the inner wall of the limiting groove is provided with a first sliding groove and a second sliding groove, the first sliding groove is symmetrically distributed on both sides of the upper end of the limiting groove, the second sliding groove is symmetrically distributed on both sides of the lower end of the limiting groove, the limiting piece is provided with a sliding key on both sides, and the limiting piece is matched in the first sliding groove or the second sliding groove through the sliding key.

[0010] Preferably, the unclogging rod is further provided with a sealing plate, the sealing plate is rotationally connected with the driving shaft, both ends of the unclogging rod are respectively provided with a sealing opening, the sealing plate passes through the sealing opening and is at least partially located inside the unclogging rod, the sealing plate is abutted with the inner wall of the unclogging rod, and the sealing plate is used for sealing the sliding groove.

[0011] Preferably, the length of the unclogging rod close to the two ends of the L-shaped pipe is less than the length of the unclogging rod close to the axis of the L-shaped pipe.

[0012] Preferably, the unclogging rod comprises a first unclogging rod and a second unclogging rod, the first unclogging rod and the second unclogging rod are spaced apart to form an unclogging rod group, a plurality of unclogging rod groups are spaced apart along the axial direction of the driving shaft, the driving gear in the first unclogging rod is rotationally matched with the driving shaft through a shaft sleeve, the shaft sleeve is provided with a reverse component, and the reverse component is used for driving the driving gear in the first unclogging rod to move reversely relative to the driving gear in the second unclogging rod.

[0013] Preferably, the reverse component comprises a first gear, a second gear, a third gear and a reverse shell, the reverse shell is located between the first unclogging rod and the second unclogging rod and is sleeved on the driving shaft, the reverse shell has a reverse space inside, the first gear is fixedly connected with the shaft sleeve, the second gear is fixedly connected with the driving shaft, the third gear is rotationally matched in the reverse shell, and the third gear is meshed with the first gear and the second gear respectively.

[0014] Preferably, both ends of the unclogging rod are provided with a pyramid structure.

[0015] Preferably, the outer wall of the L-shaped pipe is fixedly connected with a mounting frame, and the driving piece is placed on the mounting frame.

[0016] Beneficial effects:

[0017] According to the powder conveying device, the driving shaft rotates forward, thereby driving the dredging rod to move leftwards, when the dredging rod moves to the leftmost end, the driving gear is located at the rightmost end of the driving gear slot, at this time, the driving gear is locked, the driving gear continues to rotate, thereby driving the dredging rod to rotate clockwise around the driving shaft, when the dredging rod rotates 180 degrees around the driving shaft, the driving shaft stops rotating forward and reverses, so that the dredging rod on the right side of the driving shaft moves leftwards, when the dredging rod moves to the leftmost end again, the dredging rod rotates counterclockwise around the driving shaft under the driving of the driving gear, when the dredging rod rotates 180 degrees around the driving shaft, the driving shaft stops reversing and rotates forward, and then the above process is repeated, through the right-to-left movement of the dredging rod, the dredging rod can be inserted into the blocked powder, and then the blocked powder can be scattered through rotation, so that the powder restores fluidity, thereby dredging the L-shaped pipe and ensuring the normal operation of the powder conveying system. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a position schematic view of the powder conveying device of the embodiment 1 of the present application.

[0019] Figure 2 is a structure schematic view of the powder conveying device of the embodiment 1 of the present application.

[0020] Figure 3 is a transmission schematic view of the dredging rod of the embodiment 1 of the present application.

[0021] Figure 4 is a structure schematic view of the dredging rod of the embodiment 1 of the present application.

[0022] Figure 5 is a structure schematic view of the limiting part of the embodiment 1 of the present application.

[0023] Figure 6 is a structure schematic view of the sealing plate of the embodiment 1 of the present application.

[0024] Figure 7 is a structure schematic view of the powder conveying device of the embodiment 2 of the present application.

[0025] Figure 8 is an internal structure schematic view of the reversing assembly of the embodiment 2 of the present application.

[0026] REFERENCE NUMERALS:

[0027] 1, driving shaft; 2, dredging rod; 21, first dredging rod; 22, second dredging rod; 3, driving part; 4, mounting frame; 5, sliding groove; 6, driving gear; 7, driving gear slot; 8, first limiting slot; 9, second limiting slot; 10, first sliding slot; 11, second sliding slot; 12, limiting part; 13, sliding key; 14, limiting rod; 15, connecting rod; 16, sealing plate; 171, reversing shell; 172, first gear; 173, second gear; 174, third gear; 18, shaft sleeve. Detailed Implementation

[0028] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0029] Example 1:

[0030] like Figure 1 As shown, the powder transfer device of the present invention includes: a drive shaft 1 and a dredging rod 2.

[0031] Specifically, the powder transfer device of the present invention is installed at the bend of the L-shaped tube in the powder transfer system. The drive shaft 1 is rotatably engaged with the L-shaped tube. One end of the drive shaft 1 passes through the L-shaped tube and extends into the interior of the bend of the L-shaped tube. A mounting bracket 4 is fixedly connected to the outer wall of the L-shaped tube. A drive component 3 is placed on the mounting bracket 4. The drive component 3 is a motor. The end of the drive shaft 1 is fixedly connected to the drive component 3. The drive component 3 is used to drive the drive shaft 1 to rotate.

[0032] like Figures 2 to 4 As shown, there are multiple unclogging rods 2, all located inside the L-shaped tube and evenly spaced along the axial direction of the drive shaft 1. Each unclogging rod 2 is hollow, with sliding grooves 5 extending laterally on its sidewalls. The drive shaft 1 fits into these sliding grooves 5. A drive gear 6 is installed inside each unclogging rod 2, fitted onto and fixedly connected to the drive shaft 1. A drive tooth groove 7 is provided on the inner wall of each unclogging rod 2, through which the drive gear 6 meshes with the unclogging rod 2. Both ends of each unclogging rod 2 have pyramidal structures to facilitate insertion into clumps of powder during left-right movement. The unclogging rod 2 closest to the axis of the L-shaped tube has the longest dimension. Multiple unclogging rods 2 are symmetrically distributed about the axis of the L-shaped tube, with the length decreasing as they move away from the axis, and the outermost unclogging rod 2 having the shortest length. This arrangement of the unclogging rods 2 maximizes their adaptation to the internal space of the L-shaped tube, improving their unclogging efficiency.

[0033] In the initial state, the driving shaft 1 rotates forward, thereby driving the dredging rod 2 to move leftwards. When the dredging rod 2 moves to the leftmost end, the driving gear 6 is located at the rightmost end of the driving gear slot 7. At this time, the driving gear 6 is locked. The driving gear 6 continues to rotate, thereby driving the dredging rod 2 to rotate clockwise around the driving shaft 1. When the dredging rod 2 rotates 180 degrees around the driving shaft, the driving shaft 1 stops rotating forward and reverses. The dredging rod 2 on the right side of the driving shaft 1 moves leftwards. When the dredging rod 2 moves to the leftmost end again, the dredging rod 2 rotates counterclockwise around the driving shaft 1 under the driving of the driving gear 6. When the dredging rod 2 rotates 180 degrees around the driving shaft 1, the driving shaft 1 stops reversing and rotates forward. The above process is repeated. Through the rotation of the dredging rod 2, the accumulated block of powder at the bending part of the L-shaped pipe can be dispersed and loosened, thereby ensuring the smoothness of the bending part of the L-shaped pipe and preventing blockage.

[0034] As shown in Figures 2 to 5 The center of the side wall of the dredging rod 2 is provided with a limiting groove. The limiting groove has two first limiting grooves 8 and second limiting grooves 9, which are symmetrically distributed left and right, respectively, close to the left end and the right end of the dredging rod 2. Each limiting groove extends in the upward and downward direction and is cross-distributed with the sliding groove 5. The upper end inner wall of the first limiting groove 8 and the second limiting groove 9 is respectively provided with a first sliding groove 10, and the lower end inner wall of the first limiting groove 8 and the second limiting groove 9 is respectively provided with a second sliding groove 11. The first limiting groove 8 and the second limiting groove 9 are slidably connected with a limiting piece 12. The width of the limiting piece 12 is greater than the width of the sliding groove 5. The limiting piece 12 is provided with a sliding key 13 on both sides. The sliding key 13 can be slidably connected with the first sliding groove 10 or the second sliding groove 11. The limiting piece 12 can move up and down along the first limiting groove 8 or the second limiting groove 9. The side wall of the dredging rod 2 is provided with a limiting rod 14. The limiting rod 14 is fixedly connected with the inner wall of the L-shaped pipe through a connecting rod 15. The limiting rod 14 can be connected with the first limiting groove 8, the second limiting groove 9 and the sliding groove 5.

[0035] In the initial state, the limiting rod 14 is matched in the sliding groove 5, the limiting rod 14 can prevent the dredging rod 2 from rotating in advance, when the dredging rod 2 moves to the leftmost end, the limiting rod 14 is separated from the sliding groove 5, the dredging rod 2 can rotate 180 degrees along the clockwise direction, and is rotated to the right end of the driving shaft 1, in the rotating process of the dredging rod 2, the limiting rod 14 is matched with the first limiting groove 8, and the limiting member 12 in the first limiting groove 8 is pushed to move in the first limiting groove 8, when the limiting member 12 moves to the end of the first limiting groove 8, the limiting member 12 is abutted with the limiting rod 14, and the dredging rod 2 can be limited to continue to rotate, and the limiting member 12 enters the sliding groove 5. At this time, the driving shaft 1 is reversed to make the dredging rod 2 continue to move to the left, the limiting rod 14 slides in the sliding groove 5, and the dredging rod 2 is prevented from rotating in advance, when the dredging rod 2 moves to the leftmost end again, the limiting rod 14 is separated from the sliding groove 5, the dredging rod 2 can rotate 180 degrees along the counterclockwise direction, and is rotated to the right end of the driving shaft 1 again, in the rotating process of the dredging rod 2, the limiting rod 14 is matched with the second limiting groove 9, and the limiting member 12 in the second limiting groove 9 is pushed to move in the second limiting groove 9, when the limiting member 12 moves to the end of the second limiting groove 9, the limiting member 12 is abutted with the limiting rod 14, and the dredging rod 2 can be limited to continue to rotate.

[0036] As shown in Figure 2 and Figure 6 , the inner wall of the dredging rod 2 is further provided with a sealing plate 16, the left and right ends of the dredging rod 2 are provided with sealing openings, the two ends of the sealing plate 16 pass through the two sealing openings and extend outward, and the sealing plate 16 is in sliding fit with the sealing openings. The center of the sealing plate 16 is in rotating fit with the driving shaft 1, and the outer wall of the sealing plate 16 is in abutment with the sliding groove 5, so that the sealing of the sliding groove 5 is realized. In the moving process of the dredging rod 2 from left to right, the sealing plate 16 is stationary relative to the driving shaft 1, and the dredging rod 2 slides on the sealing plate 16, when the dredging rod 2 rotates, the sealing plate 16 can be driven to rotate synchronously around the driving shaft 1. The sealing of the sliding groove 5 can be realized through the sealing plate 16, so that a sealed space is formed in the dredging rod 2, powder is prevented from entering the inside of the dredging rod 2, the operation of the dredging rod 2 is affected, and the service life of the dredging rod 2 can be improved.

[0037] According to the powder conveying device provided by the embodiment of the application, when powder is accumulated and caked at the bending part of the L-shaped pipe, the dredging rod 2 is driven to move from right to left by the rotation of the driving shaft 1, when the dredging rod 2 moves to the leftmost end, the dredging rod 2 is rotated 180 degrees clockwise around the driving shaft 1, and is rotated to the right end of the driving shaft 1, and then continues to move to the left, when the dredging rod 2 moves to the leftmost end, the dredging rod 2 is rotated 180 degrees counterclockwise around the driving shaft 1, and is rotated to the right end of the driving shaft 1, and the above process is repeated, through the moving of the dredging rod 2 from right to left, the dredging rod 2 can be inserted into the caked powder, and then the caked powder can be broken by rotating, so that the powder restores fluidity, the L-shaped pipe is dredged, and the normal operation of the powder conveying system is ensured.

[0038] Example 2:

[0039] like Figure 7 and Figure 8 As shown, the powder transfer device of this embodiment is basically the same in structure as that of Embodiment 1, except that: the unblocking rod 2 includes a first unblocking rod 21 and a second unblocking rod 22, which are spaced apart to form unblocking rod groups. Multiple unblocking rod groups are evenly spaced along the axial direction of the drive shaft 1. A bushing 18 is provided between the first unblocking rod 21 and the drive shaft 1, and the drive gear 6 inside the first unblocking rod 21 is rotatably engaged with the drive shaft 1 through the bushing 18. A reversing assembly is provided between the first unblocking rod 21 and the second unblocking rod 22. The reversing assembly includes a first gear 172, a second gear 173, a third gear 174, and a reversing housing 171. The reversing housing 171 is located between the first unblocking rod 21 and the second unblocking rod 22, and is sleeved on the drive shaft 1. Its interior is hollow, forming a reversing space. The first gear 172, the second gear 173, and the third gear 174 are all helical gears and are all located inside the reversing space. The first gear 172 is fixedly connected to the bushing 18, the second gear 173 is sleeved on the drive shaft 1 and fixedly connected to the drive shaft 1, and the third gear 174 is rotatably engaged on the inner wall of the reverse housing 171, and the third gear 174 meshes with the first gear 172 and the second gear 173 respectively.

[0040] When the drive shaft 1 rotates, the second gear 173 rotates synchronously with the drive shaft 1. At the same time, the second gear 173 drives the third gear 174 to rotate, and the third gear 174 drives the first gear 172 to rotate. The bushing 18 rotates synchronously with the first gear 172, thereby realizing the opposite rotation of the second gear 173 and the first gear 172, so that the drive gear 6 in the first unblocking rod 21 rotates in the opposite direction to the drive gear 6 in the second unblocking rod 22.

[0041] The powder conveying device according to the embodiment of the present application, when the powder accumulated into blocks at the bending part of the L-shaped rod is broken up, the first and second dredging rods 21 and 22 move from left to right, when the first and second dredging rods 21 and 22 move to the left end, the first dredging rod 21 rotates 180 degrees clockwise around the driving shaft 1 from above the driving shaft 1 to the right end of the driving shaft 1, the second dredging rod 22 rotates 180 degrees counterclockwise around the driving shaft 1 from below the driving shaft 1 to the right end of the driving shaft 1, then the first and second dredging rods 21 and 22 move from left to right synchronously, when the first and second dredging rods 21 and 22 reach the left end of the driving shaft 1, the first dredging rod 21 rotates 180 degrees counterclockwise to the right end of the driving shaft 1, the second dredging rod 22 rotates 180 degrees clockwise to the right end of the driving shaft 1, then the above process is repeated, so as to complete the breaking up and loosening of the powder accumulated into blocks at the bending part of the L-shaped tube, the reverse rotation of the first and second dredging rods 21 and 22 forms a shearing structure, improves the powder loosening efficiency, and better ensures the normal operation of the powder conveying system.

[0042] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0043] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0044] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A powder transfer device, characterized by, The utility model relates to a kind of pipe cleaning device, including: Drive shaft, drive shaft is rotatably connected in the bend of L-shaped pipe, and one end of drive shaft at least partially extends L-shaped pipe, and is connected with driving element; The unclogging rod is spaced along the axial direction of the drive shaft and is distributed on the drive shaft, the side wall of the unclogging rod is provided with a sliding groove extending in the axial direction of the unclogging rod, the drive shaft can move along the sliding groove relative to the unclogging rod, the unclogging rod is a hollow rod, and a drive gear is arranged in the unclogging rod, the drive gear is sleeved on the drive shaft, the inner wall of the unclogging rod is provided with a drive gear slot, the drive gear is engaged with the drive gear slot, and the drive shaft drives the drive gear to rotate; The center of the side wall of the unclogging rod is provided with a limiting groove, the limiting groove has two first limiting grooves and second limiting grooves;The first limiting groove and the second limiting groove are symmetrically distributed left and right, respectively close to the left end and the right end of the unclogging rod;Each limiting groove extends in the upward and downward direction and is cross-distributed with the sliding groove, the first limiting groove and the second limiting groove are slidably connected with a limiting member, the upper end inner wall of the first limiting groove and the second limiting groove is provided with a first sliding groove, the lower end inner wall of the first limiting groove and the second limiting groove is provided with a second sliding groove, the width of the limiting member is greater than the width of the sliding groove, the limiting member is provided with a sliding key on both sides, the sliding key is slidably connected with the first sliding groove or the second sliding groove, and the limiting member can move upward and downward along the first limiting groove or the second limiting groove;The limiting rod is provided beside the unclogging rod, the limiting rod is connected with the L-shaped pipe, the limiting rod is matched with the first limiting groove, the second limiting groove and the sliding groove, the limiting rod is abutted with the limiting member in the limiting groove, so as to limit the unclogging rod;In the initial state, the limiting rod is matched in the sliding groove.

2. The powder transfer device of claim 1, wherein, The unclogging rod further comprises a sealing plate, the sealing plate is rotatably connected with the drive shaft, both ends of the unclogging rod are provided with a sealing port, the sealing plate passes through the sealing port, and at least part of the sealing plate is located in the unclogging rod, the sealing plate is abutted with the inner wall of the unclogging rod, and the sealing plate is used for sealing the sliding groove.

3. The powder transfer device of claim 1, wherein, The length of the unclogging rod close to the two ends of the L-shaped pipe is less than the length of the unclogging rod close to the axial center of the L-shaped pipe.

4. The powder transfer device of claim 1, wherein, The unclogging rod comprises a first unclogging rod and a second unclogging rod, the first unclogging rod and the second unclogging rod are spaced, and form an unclogging rod group, a plurality of unclogging rod groups are spaced along the axial direction of the drive shaft, the drive gear in the first unclogging rod is rotatably connected with the drive shaft through a shaft sleeve, the shaft sleeve is provided with a reverse component, and the reverse component is used for driving the drive gear in the first unclogging rod to move reversely relative to the drive gear in the second unclogging rod.

5. The powder transfer device of claim 4, wherein, The reverse component comprises a first gear, a second gear, a third gear and a reverse shell, the reverse shell is located between the first unclogging rod and the second unclogging rod, and is sleeved on the drive shaft, the reverse shell has a reverse space in the inside, the first gear is fixedly connected with the shaft sleeve, the second gear is fixedly connected with the drive shaft, and the third gear is rotatably connected in the reverse shell, and the third gear is engaged with the first gear and the second gear respectively.

6. The powder transfer device of claim 1, wherein, Both ends of the unclogging rod are provided with a pyramid structure.

7. The powder transfer device of claim 1, wherein, The outer wall of the L-shaped pipe is fixedly connected with a mounting frame, and the driving element is placed on the mounting frame.

Images