CN113697385A

CN113697385A - Reversing device for pipe chain conveyor and reverser shell thereof

Info

Publication number: CN113697385A
Application number: CN202111092060.7A
Authority: CN
Inventors: 崔昆; 王军
Original assignee: Qinhuangdao Sea Food Co ltd
Current assignee: Qinhuangdao Sea Food Co ltd
Priority date: 2021-09-17
Filing date: 2021-09-17
Publication date: 2021-11-26
Anticipated expiration: 2041-09-17
Also published as: CN113697385B

Abstract

The invention aims to solve the problem that a conveying chain in a pipe chain type conveying device in the prior art turns through the turning of the conveying pipe, and provides a reversing device for a pipe chain conveyor and a reverser shell of the reversing device, wherein the reversing device comprises a reverser shell and a reversing wheel, the reverser shell comprises a wheel body accommodating part and a chain body accommodating part, the wheel body accommodating part is a cylindrical cavity, the chain body accommodating part comprises an arc-shaped bent pipe section, the arc-shaped bent pipe section is arranged along the circumferential wall of the wheel body accommodating part and coaxially arranged, intersected and communicated with the wheel body accommodating part, and the reversing wheel is coaxial with the chain wheel accommodating part; the shell of the commutator shell is formed by fixedly connecting the box body I and the box body II, and materials can be restrained by the tubular channel in the commutation process and move forward according to a set route, so that the materials are smoothly commutated.

Description

Reversing device for pipe chain conveyor and reverser shell thereof

Technical Field

The invention relates to a pipe chain type conveying device, in particular to a reversing device for a pipe chain conveyor and a reverser shell of the reversing device.

Background

A pipe chain type conveyer is a continuous conveyer for conveying powder, small particles, small blocks and other bulk materials, in a closed conveying pipeline, a chain sheet is used as a transmission part to drive the materials to move along the inner cavity of a conveying pipe, in order to enable the chain sheet to move in the conveying pipe, a common conveying chain is formed by fixing the chain sheet on end-to-end ring chains, the ring chains are formed by buckling chain rings, and a reversing wheel is formed by at least one driving sprocket and at least one reversing wheel which are meshed with the conveying chain to support the conveying chain, and the conveying chain is driven to move circularly by the rotation of the driving sprocket. The chain wheel matched with the conveying chain has two common forms, the first chain wheel is provided with a plurality of gear teeth with thinner end parts than root parts on the outer circumference, the thinner end parts are thinner, the thin end parts of the gear teeth are inserted into the rings of the transverse chain links during meshing, and the gear teeth and the transverse chain links are meshed for transmission; the second chain wheel is characterized in that a groove is formed in the radial end face of each gear tooth along the circumferential direction of the chain wheel, a sub-groove is formed in each gear tooth, each sub-groove is a groove with two wide ends and a narrow middle, the width of the groove at the narrow part of the groove is smaller than that of a chain ring, a vertical chain link is vertically clamped at the narrow middle part of the groove during meshing, a transverse chain link is transversely clamped at the wide part of the groove, and the transverse chain link cannot pass through the narrow middle part of the groove, so that the end part of the transverse chain link is matched with the wide part of the groove to form meshing; when the two kinds of chain wheels are meshed with the endless chain, the gear teeth are in direct contact with the endless chain, and the gear teeth can invade an area for accommodating materials between two adjacent chain sheets, so that the meshing part of the conveying chain and the chain wheels cannot convey the materials, and therefore, the conveying chain cannot be reversed through the chain wheels in the area for conveying the materials in the pipe chain conveyor, but the conveying chain in the pipe chain conveyor is turned through the turning of the conveying pipe. But the friction between the chain sheet and the inner wall of the conveying pipe is large when the structure turns; when the turning angle is small, the jamming is easy to occur; the chain sheet is also prone to deflection at the turn causing material leakage.

Disclosure of Invention

The invention aims to provide a reversing device for a pipe chain conveyor and a reversing shell thereof, aiming at the problem that the conveying chain of the pipe chain conveyor turns through the turning of a conveying pipe in the prior art.

The technical purpose of the invention is realized by the following technical scheme:

a reversing device for a pipe chain conveyor comprises a reverser shell and a reversing wheel rotatably connected in the reverser shell, wherein the reverser shell comprises a wheel body accommodating part for accommodating the reversing wheel and a chain body accommodating part for conveying a chain to pass through, the wheel body accommodating part is a cylindrical cavity with an inner cavity matched with the shape and size of a chain wheel, the chain body accommodating part comprises an arc-shaped bent pipe section, the arc-shaped bent pipe section is arranged along the circumferential wall of the wheel body accommodating part, the wheel body accommodating part and the chain body accommodating part are coaxially arranged and are intersected and communicated, the reversing wheel is coaxial with the chain wheel accommodating part, a wheel body of the reversing wheel is provided with a shaft platform, the shaft platform is provided with a shaft hole coaxial with the wheel body, the circumferential surface of the wheel body of the reversing wheel is provided with a chain sheet groove, the chain sheet groove is annular and is arranged along the circumferential direction of the wheel body, the radial cross section of the chain sheet groove is arc-shaped, and the outer circumferential surface of the reversing wheel is in clearance fit connection with the inner circumferential surface of the wheel body accommodating part, a tubular channel is formed by the groove wall of the chain sheet groove and the inner wall of the arc-shaped bent pipe section of the chain body accommodating part.

Preferably, the wheel body of the reversing wheel comprises an outer wheel ring and a circular support plate II, the support plate II is coaxial with the outer wheel ring and fixedly connected with the inner circumferential surface of the outer wheel ring, the geometric center of the support plate II is coincident with the geometric center of the outer wheel ring, the pillow block is arranged on the support plate II, the chain sheet groove is positioned on the outer circumference of the outer wheel ring, the arc shape and size of the chain sheet groove are matched with the shape and size of the matching part of the chain sheet of the reversed conveying chain, the arc shape of the chain sheet groove is arc-shaped, the chain sheet is circular, and the arc-shaped bent pipe section of the chain body accommodating part is arc-shaped.

Preferably, the axial end faces of two sides of the outer wheel ring are provided with discharge chutes, the discharge chutes penetrate through the inner and outer circumferential walls of the outer wheel ring and are communicated with the chain sheet groove, guide edges with the same number as the discharge chutes are fixedly arranged on the axial end faces of the two axial ends of the second support plate respectively, the guide edges are in one-to-one correspondence with the discharge chutes and are arc-shaped, the guide edges are parallel and level with the axial end faces of the outer wheel ring along the end faces away from the second support plate, a boss is coaxially arranged with the shaft hole at the position corresponding to the shaft hole, the shaft hole is arranged on the boss, one end of each guide edge is tangent to the outer circumferential face of the boss, the other end of each guide edge is fixedly connected with the outer wheel ring and is close to the corresponding discharge chute, the discharge chutes are located on one side where the corresponding guide edges protrude outwards, and the orientation of each guide edge is consistent along the arc-shaped protruding direction.

Preferably, each axial end face of the outer wheel ring is provided with at least two discharge chutes, and the discharge chutes on the same axial end face are uniformly and circumferentially distributed by taking the shaft hole as the center; all the material guiding edges on the same side of the two supporting plates are symmetrical around the center of the shaft hole; the discharge chutes on the two sides of the second supporting plate are in mirror symmetry with the second supporting plate, and the material guide edges on the two sides of the second supporting plate are in mirror symmetry with the second supporting plate.

Preferably, the second support plate is provided with a weight-removing hole.

A commutator housing of a reversing device for a pipe chain conveyor comprises a wheel body accommodating part for accommodating a reversing wheel and a chain body accommodating part for conveying a chain to pass through, wherein the wheel body accommodating part is a cylindrical cavity with an inner cavity matched with the shape and size of a chain wheel, the chain body accommodating part comprises an arc-shaped bent pipe section, the arc-shaped bent pipe section is arranged along the circumferential wall of the wheel body accommodating part, the wheel body accommodating part and the chain body accommodating part are coaxially arranged, are intersected and communicated, and the reversing wheel and the chain wheel accommodating part are coaxial; the casing is formed by fixedly connecting a first box body and a second box body in a relative mode, and the end faces, opposite to each other, of the first box body and the second box body are perpendicular to the axis of the wheel body accommodating portion.

Preferably, the edges of the first box body and the second box body are respectively provided with a connecting edge, and the first box body and the second box body are oppositely connected and can be detachably and fixedly connected through the connecting edges.

Preferably, the chain body accommodating part further comprises connecting parts arranged at two ends of the bent pipe part, the connecting parts are in a straight pipe shape and are tangentially arranged along the wheel body accommodating part, the inner diameter of each connecting part is matched with the outer diameter of the conveying pipe, the inner diameter of the wheel body accommodating part is equal to the outer diameter of the accommodated chain wheel, the wheel body accommodating part and the conveying pipe are in clearance fit connection, and the inner diameter of the chain body accommodating part is matched with the diameter of a chain piece of the conveying chain passing through; the connecting portion of box body one includes half pipe portion and the main part that the components of a whole that can function independently set up, the main part sets up with chain body portion of holding is integrative, and half pipe portion sets up and can dismantle fixed connection with the connecting portion of box body two relatively.

The invention has the following beneficial effects:

the reversing device for the pipe chain conveyor comprises a reverser shell and a reversing wheel which is rotatably connected in the reverser shell, wherein the reverser shell comprises a wheel body accommodating part and a chain body accommodating part, the wheel body accommodating part is a box body with a cylindrical inner cavity, the reversing wheel is rotatably connected in the wheel body accommodating part and is coaxial with the wheel body accommodating part, the chain body accommodating part comprises an arc-shaped bent pipe section, the arc-shaped bent pipe section is arranged along the circumferential wall of the wheel body accommodating part and is intersected and communicated with the wheel body accommodating part, a chain sheet groove is arranged on the outer circumferential surface of the wheel body of the reversing wheel along the circumference of an outer wheel ring, a tubular passage matched with the shape of a chain sheet of a conveying chain is formed between the inner wall of the chain body accommodating part and the groove wall of the chain sheet groove, when the conveying chain moves, the conveying chain is close to the wheel body along the tangential direction of the wheel body until the conveying chain sheet is contacted with the chain sheet groove wall, the relative movement of the chain sheet and the groove wall of the chain sheet groove generates sliding friction force which generates reaction force to the reversing wheel, so that the sliding friction force between the chain sheet and the conveying pipe is converted into power which enables the reversing wheel and the shell of the reversing wheel to rotate relatively when the conveying chain turns, and when the power is greater than the sliding friction force between the chain sheet and the reversing wheel, the reversing wheel can rotate along with the chain sheet, so that the resistance in steering is reduced, unnecessary energy consumption is reduced, the abrasion of the chain sheet is reduced, the abrasion of the edge of the chain sheet can be reduced, and the service life of the conveying chain is prolonged; in the contact process of the conveying chain and the reversing wheel, the chain sheet is supported on the circumference of the reversing wheel, the chain sheet and the reversing wheel are relatively static in the turning process, and the chain sheet cannot be shifted in the turning process, so that clamping is not easy to occur even when the turning angle is small, material leakage caused by deflection of the chain sheet is not easy to occur, or when the friction force between the chain sheet and the reversing wheel is smaller than the driving force for rotation of the reversing wheel, the reversing wheel does not rotate, the chain sheet moves in a tubular channel formed by an arc-shaped bent pipe and a chain sheet groove, the reversing wheel provides support and guide for reversing of the conveying chain, the chain sheet slides in the chain sheet groove, the material is pushed to move in the tubular channel, and the tubular channel restrains the material to move along the set direction to finish reversing of the material; in addition, because the ring chain can be supported by the chain piece and is kept away from the reversing wheel, the ring chain can not contact with the reversing wheel all the time, and the two can not wear each other, and because the chain piece contacts with the wheel body along the tangential direction, the collision between the chain piece and the wheel body is comparatively gentle, therefore the noise and the wearing and tearing that the conveying chain produced with the contact of reversing wheel are all relatively less.

The commutator shell adopting the structure of the invention is characterized in that a wheel body containing part with a cylindrical inner cavity and a chain body containing part with an arc inner cavity are coaxially arranged and intersected to form a mutually communicated shell, the commutator wheel and a conveying chain are protected, simultaneously, the positions of the conveying chain and the wheel body are restrained, the conveying chain is matched with the commutator wheel at the intersection of the chain body containing part and the wheel body containing part for transmission, the commutator is completed, materials are restrained by a tubular channel in the commutator process and move forward according to a set route, the materials are smoothly commutated, and the materials are protected by the shell during commutator, so that the conveyed materials are prevented from being polluted by the external environment.

The inner diameter of the wheel body accommodating part is larger than the outer diameter of the accommodated reversing wheel, and the wheel body accommodating part and the reversing wheel are in clearance fit connection, so that the reversing wheel can be effectively prevented from being blocked by materials.

Drawings

FIG. 1 is a schematic structural view of an embodiment of a commutator housing of the present invention;

FIG. 2 is an exploded schematic view of the present invention steering sprocket and sprocket cassette position configuration wherein the steering sprocket engages the conveyor chain;

fig. 3 is a schematic structural diagram of the reversing wheel of the invention.

Reference number legend, 10, conveyor chain; 13. a chain sheet; 30. a reversing wheel; 31. an outer race; 32. a second support plate; 33. a chain sheet groove; 34. a discharge chute; 35. a material guiding edge; 36. removing heavy holes; 37. a pillow block; 38. a shaft hole; 40. a delivery pipe; 50. a commutator housing; 51. a wheel body accommodating portion; 52. a chain body accommodating portion; 53. a connecting portion; 531. a body portion; 532. a half pipe section; 54. a first box body; 55. a second box body; 56. and a connecting edge.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings. In which like parts are designated by like reference numerals.

A reversing device for a pipe chain conveyor, as shown in FIGS. 1 and 2, includes a reverser housing 50 and a reversing wheel rotatably coupled within the reverser housing 50. The diverter housing 50 comprises a wheel body receiving portion 51 and a chain body receiving portion 52, wherein the wheel body receiving portion 51 is used for receiving a diverting wheel, and the chain body receiving portion 52 is used for receiving the conveying chain 10 surrounding the diverting wheel, of course, only a part of the conveying chain 10. The wheel body accommodating part 51 is a cavity with a cylindrical inner cavity, the inner diameter of the wheel body accommodating part is matched with the diameter of the reversing wheel, the reversing wheel can be accommodated, the inner diameter of the box body is slightly larger than the outer diameter of the accommodated reversing wheel, the box body and the reversing wheel are in clearance fit connection, the reversing wheel can freely rotate in the box body, the inner side surface of the cavity of the reversing wheel is in clearance fit connection with the corresponding end surface of the accommodated reversing wheel, and the reversing wheel is prevented from rotating due to the fact that part of materials fall into the shell and then is influenced. The reverse wheel is disposed in the wheel body accommodating portion 51 and coaxially and rotatably connected with the wheel body accommodating portion 51. The chain body accommodating portion 52 includes an arc-shaped bent pipe section which is arranged along the circumferential wall of the wheel body accommodating portion 51, and the two are coaxially arranged, intersected and communicated. The reversing wheel comprises a wheel body, wherein a chain sheet groove 33 is formed in the outer circumferential surface of the wheel body along the circumference of the wheel body, the radial section of the chain sheet groove 33 is arc-shaped, the diameter of the arc of the chain sheet groove 33 is matched with the diameter of a chain sheet 13 of the conveying chain 10 matched with the chain sheet groove, so that the chain sheet can be vertically arranged in the chain sheet groove along the diameter direction of the wheel body, the diameter of the cross section of a chain body accommodating part 52 is matched with the diameter of the chain sheet, preferably, the diameter of the chain sheet groove is equal to the diameter of the cross section of the chain body accommodating part 52, and when the reversing wheel is arranged in the wheel body accommodating part, a complete tubular channel chain sheet and a tubular channel are in friction sliding connection between the inner wall of the arc pipe section of the chain body accommodating part 52 and the groove wall of the chain sheet groove 33. When the conveying chain 10 is used, the conveying chain 10 winds around the reversing wheel and penetrates through the tubular channel, when the conveying chain 10 moves, the chain piece 13 positioned outside the reversing device approaches the wheel body along the tangential direction of the wheel body until the chain piece 13 is contacted with the groove wall of the chain piece groove 33, the reversing wheel is driven to rotate through the friction force between the chain piece 13 and the groove wall of the chain piece groove 33, therefore, when the conveying chain 10 turns, the sliding friction force between the chain piece 13 and the reversing wheel of the conveying pipe 40 can be converted into a driving force for driving the reversing wheel to rotate in the reverser shell 50, the resistance of the conveying chain during turning is reduced, unnecessary energy consumption is reduced, the abrasion of the chain piece 13 is reduced, meanwhile, the abrasion of the edge of the chain piece 13 can be reduced, and the service life of the conveying chain 10 is prolonged. In the contact process of the conveying chain 10 and the reversing wheel, the outer circumference of the chain piece 13 is in contact with the circumferential surface of the reversing wheel, friction force exists between the outer circumference of the chain piece and the circumferential surface of the reversing wheel, the reversing wheel is pushed to rotate by the friction force, the chain piece 13 and the reversing wheel can be kept relatively static in the turning process, and the chain piece 13 cannot be shifted in the turning process, so that the chain piece is not easy to block even when the turning angle is small, and the chain piece 13 is not easy to deflect to cause material leakage. In addition, because the ring chain can be supported by the chain piece 13 and is far away from the chain piece groove of the reversing wheel, the ring chain can not contact with the reversing wheel all the time, mutual abrasion can not be caused between the ring chain and the reversing wheel, and because the chain piece 13 contacts with the wheel body along the tangential direction, the collision between the chain piece 13 and the wheel body is soft, and therefore noise and abrasion generated by the contact between the conveying chain 10 and the reversing wheel are relatively small. Preferably, the chain sheet is a circular chain sheet, the arc-shaped bent pipe section is an arc-shaped bent pipe section, and the cross section of the chain sheet groove is also arc-shaped. Namely, the shape of the cross section of the chain sheet groove and the shape of the arc bent pipe section are matched with the shape of the chain sheet.

In order to facilitate the connection of the conveying pipe 40 with the commutator housing 50, straight pipe-shaped connecting portions 53 extending tangentially along the wheel body accommodating portion 51 may be provided at both ends of the chain body accommodating portion 52, the connecting portions 53 are in butt connection or plug-in connection or snap connection with the conveying pipe, the inner diameter of the connecting portions is adapted to the outer diameter of the conveying pipe 40 in the plug-in connection or snap connection, and the end of the conveying pipe 40 is preferably provided in the connecting portions 53, and the two are in plug-in connection or snap connection.

In order to facilitate the installation of the commutator housing 50, the commutator housing 50 may be provided as a separate structure, the commutator housing 50 is divided into a first box 54 and a second box 55, and the wheel body accommodating portion 51, the chain body accommodating portion 52 and the connecting portion 53 are divided into two parts and respectively provided on the first box 54 and the second box 55. The end surfaces of the first box body 54 and the second box body 55, which are opposite to each other, are perpendicular to the axis of the wheel body accommodating part 51, and the first box body 54 and the second box body 55 are oppositely connected to form a complete commutator shell 50. The edges of the first box body 54 and the second box body 55 are both provided with connecting edges 56, the first box body 54 and the second box body 55 are oppositely arranged, and the connecting edges 56 of the two box bodies are connected through bolts, so that the first box body 54 and the second box body 55 are fixedly connected; box one 54 and box two 55 may also be connected by snap-fit.

To further facilitate the fixing of the delivery pipe 40, the connecting portion 53 of the first case 54 may be provided as a separate structure divided into a half pipe portion 532 and a main body portion 531 integrally provided with the chain body accommodating portion 52, and the half pipe portion 532 clamps the delivery pipe 40 opposite to the connecting portion 53 of the second case 55, so that the delivery pipe 40 is fixed opposite to the connecting portion 53.

In order to reduce the weight of the wheel body, the steering sprocket may be configured such that the wheel body includes an outer wheel ring 31 and a circular support plate 32, and the support plate 32 is coaxial with the outer wheel ring 31 and is fixedly connected to the inner circumferential surface of the outer wheel ring 31, as shown in fig. 3. The geometric center of the second support plate 32 coincides with the geometric center of the outer wheel ring 31. The link grooves 33 are provided on the outer circumferential surface of the outer ring 31. The shaft hole is arranged at the geometric center of the second support plate. By adopting the structure, the outer wheel ring is divided into two symmetrical sides by the supporting plate, the contact area of the chain wheel and the chain sheet is ensured, and the overall quality is reduced.

Since there is a gap between the inner wall of the wheel body accommodating portion 51 of the commutator housing 50 and the end surface of the outer wheel ring 31, materials may enter the gap between the supporting plate two 32 and the inner wall of the wheel body accommodating portion 51 from the gap, and in order to guide the materials in the gap, as shown in the figure, it is preferable that the commutator wheel is provided with a discharge chute 34, a guide edge 35 and a pillow block 37, the pillow block 37 is arranged at the center of the supporting plate, the shaft hole is arranged on the pillow block 37, two end surfaces of the pillow block 37 are respectively located on two end surfaces of the supporting plate, and the end surface of the pillow block is lower than the end surface of the outer wheel ring or flush with the end surface of the outer wheel ring. The discharge chutes 34 are arranged on the axial end faces of the two sides of the outer wheel ring 31, the discharge chutes 34 penetrate through the inner and outer circumferential walls of the outer wheel ring 31, the discharge chutes 34 are communicated with the chain sheet grooves 33, at least two discharge chutes 34 are arranged on each axial end face of the outer wheel ring 31, the discharge chutes 34 on the same axial end face are distributed around the shaft hole 38, and four discharge chutes 34 are arranged on each axial end face of the outer wheel ring 31 in the embodiment. The material guiding edge 35 is an arc-shaped convex edge, the material guiding edge 35 is fixedly arranged on the axial end face of the second support plate 32, the end face, far away from the second support plate 32, of the material guiding edge 35 is flush with the axial end face of the outer wheel ring 31, one end of the material guiding edge 35 is tangent to the outer circumferential face of the pillow block 37, and the other end of the material guiding edge is fixedly connected with the outer wheel ring 31. The number of the material guiding edges 35 is the same as that of the material discharging grooves 34, each material guiding edge 35 corresponds to one material discharging groove 34, one end of each material guiding edge 35, which is connected with the outer wheel ring 31, is close to the corresponding material discharging groove 34, the shape and the size of each material guiding edge 35 are the same, the material discharging grooves 34 are located on one side, which is convex outwards in an arc shape, of the corresponding material guiding edge 35, when a certain material guiding edge 35 rotates by taking the shaft hole 38 as the center, the material guiding edge can be coincided with any material guiding edge 35 located on the same axial end face of the support plate two 32, and the material guiding edges 35 located on the same axial end face of the support plate two 32 are evenly distributed along the circumference by taking the shaft hole 38 as the center, so that the gravity center of the reversing wheel is coincided with the geometric center of the reversing wheel. When the reversing wheel rotates, the guide edge 35 meets the material between the second support plate 32 and the inner wall of the chain wheel accommodating part, the guide edge 35 pushes the material falling on the inner wall of the chain wheel accommodating part to move, in the process that the material is pushed along the guide edge 35, the material moves along the convex surface of the guide edge 35 towards the direction of the outer wheel ring 31 under the guiding action of the guide edge 35 in an arc-shaped structure until the material moves to the discharge chute 34 and enters the chain sheet groove 33 from the discharge chute 34, and the material entering the chain sheet groove 33 can be taken away by the chain sheet 13. By adopting the chain wheel with the structure, the falling materials can be collected in the chain sheet groove and taken away by the chain sheet, so that the material loss can be prevented when the conveying chain turns, and the chain wheel can be prevented from being clamped by the materials.

The discharge chutes 34 on the two sides of the second support plate 32 are mirror-symmetric with respect to the second support plate 32, and the guide edges 35 on the two sides of the second support plate 32 are mirror-symmetric with respect to the second support plate 32, so that the symmetry of the reversing wheel can be improved, and the reversing wheel has no directivity, is convenient to mount, and is beneficial to keeping stability of the reversing wheel during rotation.

In order to further reduce the weight of the reversing wheel, a weight removing hole 36 may be formed in the second support plate 32, and in order to improve the symmetry of the reversing wheel, one weight removing hole 36 may be formed between any two adjacent material guiding edges 35 located on the same side of the second support plate 32. The weight-removing holes 36 are preferably configured as rounded triangles, three sides of each triangle are arc-shaped and are respectively parallel to the edge of the adjacent outer wheel ring 31 or the material guiding edge 35, so that the shape of the weight-removing holes 36 is similar to the shape of a triangular area enclosed between the material guiding edge 35 and the outer wheel ring 31, and the size of the weight-removing holes 36 is increased.

The specific examples are merely illustrative of the invention and are not intended to be limiting.

Claims

1. A reversing device for a pipe chain conveyor, characterized by: the chain wheel comprises a commutator shell (50) and a commutator wheel (30) rotationally connected in the commutator shell (50), wherein the commutator shell comprises a wheel body accommodating part (51) for accommodating the commutator wheel and a chain body accommodating part (52) for conveying a chain (10) to pass through, the wheel body accommodating part (51) is a cylindrical cavity with an inner cavity matched with the shape and size of a chain wheel, the chain body accommodating part (52) comprises an arc-shaped bent pipe section, the arc-shaped bent pipe section is arranged along the circumferential wall of the wheel body accommodating part (51), the wheel body accommodating part (51) and the chain body accommodating part (52) are coaxially arranged and are intersected and communicated, the commutator wheel is coaxial with the chain wheel accommodating part, a shaft platform is arranged on the wheel body of the commutator wheel (30), a shaft hole coaxial with the wheel body is arranged on the shaft platform, a chain sheet groove (33) is arranged on the circumferential surface of the wheel body of the commutator wheel (30), and the chain sheet groove (33) is annular and is arranged along the circumferential direction of the wheel body, the radial section of the chain sheet groove (33) is arc-shaped, the outer circumferential surface of the reversing wheel is in clearance fit connection with the inner circumferential surface of the wheel body accommodating part, and a tubular channel is formed by the groove wall of the chain sheet groove (33) and the inner wall of the arc-shaped bent pipe section of the chain body accommodating part (52).

2. The reversing device for a pipe chain conveyor according to claim 1, wherein: the wheel body of the reversing wheel comprises an outer wheel ring (31) and a circular support plate II (32), the support plate II (32) is coaxial with the outer wheel ring (31) and fixedly connected with the inner circumferential surface of the outer wheel ring (31), the geometric center of the support plate II (32) is overlapped with that of the outer wheel ring (31), the pillow block is arranged on the support plate II (32), the chain sheet groove (33) is located on the outer circumference of the outer wheel ring (31), the arc shape and size of the chain sheet groove (33) are matched with those of the matching part of the chain sheet (13) of the reversed conveying chain, the arc shape of the chain sheet groove is arc-shaped, the chain sheet is circular, and the arc-shaped bent pipe section of the chain body accommodating part is arc-shaped.

3. The reversing device for a pipe chain conveyor according to claim 2, wherein: the axial end faces of two sides of the outer wheel ring (31) are respectively provided with a discharge chute (34), the discharge chutes (34) penetrate through the inner and outer circumferential walls of the outer wheel ring (31) and are communicated with the chain sheet groove (33), two axial end faces of the second support plate (32) are respectively and fixedly provided with guide edges (35) with the same number as the discharge chutes (34), the guide edges (35) are in one-to-one correspondence with the discharge chutes (34), the guide edges (35) are arc-shaped, the end faces of the guide edges (35) far away from the second support plate (32) are flush with the axial end face of the outer wheel ring (31), the positions corresponding to the shaft holes and the shaft holes are coaxially provided with bosses, the shaft holes are arranged on the bosses, one ends of the guide edges (35) are tangent to the outer circumferential face of the bosses (37), the other ends of the guide edges are fixedly connected with the outer wheel ring (31) and are close to the corresponding discharge chutes (34), and the discharge chutes (34) are located on one side of the arc-shaped outer convex edges (35), all the material guiding devices are consistent along the convex direction of the arc.

4. A reversing device for a pipe chain conveyor according to claim 3, characterized in that: each axial end face of the outer wheel ring (31) is provided with at least two discharge chutes (34), and the discharge chutes (34) positioned on the same axial end face are uniformly and circumferentially distributed by taking the shaft hole (38) as the center; each material guide edge (35) on the same side of the second support plate (32) is centrosymmetric with respect to the shaft hole (38); the discharge chutes (34) on the two sides of the second support plate (32) are in mirror symmetry with respect to the second support plate (32), and the material guide edges (35) on the two sides of the second support plate (32) are in mirror symmetry with respect to the second support plate (32).

5. The reversing device for a pipe chain conveyor according to claim 2, wherein: the second support plate (32) is provided with a weight-removing hole (36).

6. A commutator housing of a commutator device for a pipe chain conveyor, characterized in that: the shell comprises a wheel body accommodating part (51) for accommodating the reversing wheel and a chain body accommodating part (52) for allowing a conveying chain (10) to pass through, the wheel body accommodating part (51) is a cylindrical cavity with an inner cavity matched with the shape and size of a chain wheel, the chain body accommodating part (52) comprises an arc-shaped bent pipe section, the arc-shaped bent pipe section is arranged along the circumferential wall of the wheel body accommodating part (51), the wheel body accommodating part (51) and the chain body accommodating part (52) are coaxially arranged, are intersected and communicated, and the reversing wheel is coaxial with the chain wheel accommodating part; the casing is formed by fixedly connecting a first box body (54) and a second box body (55) relatively, and the mutually opposite end surfaces of the first box body (54) and the second box body (55) are vertical to the axis of the wheel body accommodating part (51).

7. The reverser shell of the reversing device for a pipe chain conveyor according to claim 6, wherein: the edges of the first box body (54) and the second box body (55) are respectively provided with a connecting edge (56), and the first box body (54) and the second box body (55) are oppositely connected and detachably and fixedly connected through the connecting edges (56).

8. The reverser shell of the reversing device for a pipe chain conveyor according to claim 7, wherein: the chain body accommodating part (52) further comprises connecting parts (53) arranged at two ends of the bent pipe part, the connecting parts (53) are straight pipe-shaped, the connecting parts (53) are tangentially arranged along the wheel body accommodating part (51), the inner diameter of the connecting parts (53) is matched with the outer diameter of the conveying pipe (40), the inner diameter of the wheel body accommodating part (51) is equal to the outer diameter of the accommodated chain wheel, the wheel body accommodating part and the conveying pipe are in clearance fit connection, and the inner diameter of the chain body accommodating part is matched with the diameter of a chain piece (13) of the conveying chain (10) passing through; the connecting part (53) of the first box body (54) comprises a half pipe part (532) and a main body part (531) which are arranged in a split mode, the main body part (531) and the chain body accommodating part (52) are arranged integrally, and the half pipe part (532) and the connecting part (53) of the second box body (55) are arranged oppositely and are detachably and fixedly connected.