A ring-through system applicable to high-frequency heavy-duty working conditions

Abstract

The present invention discloses a loop-through system applicable to high-frequency heavy-duty working conditions, which comprises a loop-through track system composed of an annular inner loop-through track and an outer loop-through track, and a vehicle body. At least two groups of inner driving wheel sets for moving along the inner loop-through track are arranged on the inner side of the bottom of the vehicle body. The inner driving wheel sets are connected to the inner side of the bottom of the vehicle body through a rotating mechanism. At least two groups of outer driven wheel sets for moving along the outer loop-through track are arranged on the outer side of the bottom of the vehicle body. The outer driven wheel sets are connected to the outer side of the bottom of the vehicle body through a rotating and translating mechanism. The vehicle body moves smoothly along the loop-through track system through each inner driving wheel set and each outer driven wheel set. A translation conveyor for conveying materials is arranged on the top of the vehicle body. The present invention has the advantages of good structural strength, reasonable track treatment and easy maintenance.

Description

Technical Field

[0001] The present invention relates to the technical field of flexible transfer of finished products and raw materials in and out of the warehouse under high-frequency heavy-load conditions in an automated storage library, and specifically relates to a loop-through system applicable to high-frequency heavy-load conditions. Background Art

[0002] The loop-through shuttle system (hereinafter referred to as the "loop-through system") is widely used in automated storage libraries due to its advantages such as flexible transfer, low cost, saving the number of conveyor equipment, high work efficiency, reducing logistics intersection, and simple layout. At present, the loop-through systems applied to high-frequency heavy-load conditions such as food and beverage have the following defects: (1) insufficient structural strength; (2) improper track treatment, no secondary fixation at the track joints, and joint problems occur after the track has been running for a period of time; (3) inconvenient assembly and poor maintainability, not easy to maintain; (4) the shuttle is prone to off-track phenomenon when turning. Summary of the Invention

[0003] The purpose of the present invention is to provide a loop-through system applicable to high-frequency heavy-load conditions with good structural strength, reasonable track treatment, and easy maintenance.

[0004] To achieve the above purpose, the present invention adopts the following technical solution: A loop-through system applicable to high-frequency heavy-load conditions, including a loop-through track system composed of an annular inner loop-through track and an outer loop-through track, and a vehicle body. At least two groups of inner active wheel sets for moving along the inner loop-through track are arranged on the inner side of the bottom of the vehicle body. The inner active wheel sets are connected to the inner side of the bottom of the vehicle body through a rotating mechanism. At least two groups of outer passive wheel sets for moving along the outer loop-through track are arranged on the outer side of the bottom of the vehicle body. The outer passive wheel sets are connected to the outer side of the bottom of the vehicle body through a rotating and translating mechanism. The vehicle body moves smoothly along the loop-through track system through each inner active wheel set and each outer passive wheel set. A translation conveyor for conveying materials is arranged on the top of the vehicle body.

[0005] Further, for the aforementioned loop-through system applicable to high-frequency heavy-load conditions, wherein: the structure of the vehicle body includes: a vehicle frame formed by welding at least two horizontal longitudinal square tubes and at least two horizontal transverse square tubes. Buffer mounting plates for mounting polyurethane buffers are respectively fixed on the four sides of the vehicle frame. A number of reinforcing ribs are connected between the buffer mounting plates and the vehicle frame. A number of vehicle frame upper flange plates for mounting the translation conveyor are fixed on the top of the vehicle frame. A vehicle frame lower inner flange plate for mounting the rotating mechanism is arranged on the inner side of the bottom of the vehicle frame. A vehicle frame lower outer flange plate for mounting the rotating and translating mechanism is arranged on the outer side of the bottom of the vehicle frame.

[0006] Further, for a loop-through system applicable to high-frequency heavy-load working conditions as described above, where: The structure of the rotating mechanism includes: a first bearing housing for fixedly connecting with the inner flange plate under the vehicle frame. Two tapered roller bearings are installed in the bearing installation holes of the first bearing housing. A first oil injection port is provided on the outer wall of the first bearing housing. A first support shaft is vertically passed through and fixed in the bearing inner rings of the two tapered roller bearings. The lower end of the first support shaft extends downward out of the first bearing housing and is fixed with an inner side driving wheel group mounting plate.

[0007] Further, for a loop-through system applicable to high-frequency heavy-load working conditions as described above, where: The structure of the inner side driving wheel group includes: a driving wheel frame for fixedly connecting with the inner side driving wheel group mounting plate of the rotating mechanism. A set of first guide wheel groups are respectively provided on both sides of the driving wheel frame. Each set of first guide wheel groups consists of at least two first guide wheels. The two sets of first guide wheel groups are distributed on both sides of the inner side track of the loop-through. The two sets of first guide rail groups are respectively in rolling contact with the side walls of the two tracks of the inner side track of the loop-through. A driving motor is installed on the driving wheel frame. A driving wheel is sleeved and fixed on the output shaft of the driving motor. The driving wheel is in rolling contact with the top surface of the track of the inner side track of the loop-through.

[0008] Further, for a loop-through system applicable to high-frequency heavy-load working conditions as described above, where: The structure of the rotating and translating mechanism includes: a second bearing housing. Two tapered roller bearings are installed in the bearing installation holes of the second bearing housing. A second oil injection port is provided on the outer wall of the second bearing housing. A second support shaft is vertically passed through and fixed in the bearing inner rings of the two tapered roller bearings. The lower end of the second support shaft extends downward out of the second bearing housing and is fixed with an outer side driven wheel group mounting plate. Sliding seats are respectively fixed at both ends of the second bearing housing. A chute is provided at the top of each sliding seat. A linear guide rail is slidably arranged in each sliding seat chute. A connecting member for cooperating and connecting with the outer flange plate under the vehicle frame of the vehicle body is provided on each linear guide rail.

[0009] Further, for a loop-through system applicable to high-frequency heavy-load working conditions as described above, where: The structure of the outer side driven wheel group includes: a driven wheel frame for fixedly connecting with the outer side driven wheel group mounting plate of the rotating and translating mechanism. A set of second guide wheel groups are respectively provided on both sides of the driven wheel frame. Each set of second guide wheel groups consists of at least two second guide wheels. The two sets of second guide wheel groups are distributed on both sides of the outer side track of the loop-through. The two sets of second guide rail groups are respectively in rolling contact with the side walls of the two tracks of the outer side track of the loop-through. A driven wheel is supported on the driven wheel frame. The driven wheel is in rolling contact with the top surface of the track of the outer side track of the loop-through.

[0010] Furthermore, for a loop-through system applicable to high-frequency heavy-load working conditions described above, wherein: the inner loop-through track is formed by butt-jointing several inner tracks, and the outer loop-through track is formed by butt-jointing several outer tracks; the inner loop-through track and the outer loop-through track are installed and supported on the leg assembly simultaneously, and the leg assembly is used to keep the center distance between the inner loop-through track and the outer loop-through track consistent. The leg assembly includes several legs, and each leg supports and connects and fixes the inner loop-through track and the outer loop-through track simultaneously; the structure of the leg includes: a support plate, and two bases respectively arranged under the inner loop-through track and the outer loop-through track. On each base, a lead screw that can only rotate in the base and cannot move up and down is vertically supported. The lead screws of the two bases correspond to the two ends of the support plate respectively. The lead screws of the two bases respectively pass upward through the corresponding ends of the support plate and are threadedly connected to the corresponding ends of the support plate. A locking nut is threadedly connected to each lead screw.

[0011] Furthermore, for a loop-through system applicable to high-frequency heavy-load working conditions described above, wherein: the specific installation structure of the leg and the outer loop-through track is as follows: on both sides of the bottom of the outer loop-through track along its length direction, a first long groove is respectively arranged. On both sides of the notch of each first long groove, a first retaining edge extending inward into the notch is respectively arranged. A first pressing plate is arranged in the first long groove and is restricted in the first long groove by the first retaining edge. Several first threaded locking holes are arranged on the first pressing plate. On both sides of the corresponding end of the support plate, several first through holes are respectively arranged. The first through holes on each side of the corresponding end of the support plate correspond one by one to the first threaded locking holes on the first pressing plate on the same side. In each pair of corresponding first threaded locking holes and first through holes, a first locking bolt is arranged. The screw rod of the first locking bolt sequentially passes through the first through hole and is then threadedly connected to the first threaded locking hole of the first pressing plate.

[0012] The specific installation structure of the leg and the inner loop-through track is as follows: on both sides of the bottom of the inner loop-through track along its length direction, a second long groove is respectively arranged. On both sides of the notch of each second long groove, a second retaining edge extending inward into the notch is respectively arranged. A second pressing plate is arranged in the second long groove and is restricted in the second long groove by the second retaining edge. Several second threaded locking holes are arranged on the second pressing plate. On both sides of the corresponding end of the support plate, several second through holes are respectively arranged. The second through holes on each side of the corresponding end of the support plate correspond one by one to the second threaded locking holes on the second pressing plate on the same side. In each pair of corresponding second threaded locking holes and second through holes, a second locking bolt is arranged. The screw rod of the second locking bolt sequentially passes through the second through hole and is then threadedly connected to the second threaded locking hole of the second pressing plate.

[0013] Furthermore, for the aforementioned loop-through system applicable to high-frequency heavy-load working conditions, the following applies: In the inner loop-through track, the butt joints of every two adjacent inner tracks are connected and fixed through connecting plates, and track length expansion compensation sheets are arranged in the track gaps at the butt joints of every two adjacent inner tracks; in the outer loop-through track, the butt joints of every two adjacent outer tracks are connected and fixed through connecting plates, and track length expansion compensation sheets are arranged in the track gaps at the butt joints of every two adjacent outer tracks.

[0014] Furthermore, for the aforementioned loop-through system applicable to high-frequency heavy-load working conditions, the following applies: The structure of the translation conveyor includes: a frame, at the bottom of the frame, a conveyor lower flange plate is installed for connecting and fixing with the upper flange plate of the vehicle body frame, sprocket groups are respectively supported on the main beams on the left and right sides of the frame, conveyor chains are wound around each side of the sprocket groups, and the two conveyor chains rotate simultaneously in the same direction under the drive of the hanging plate type drive station to convey materials. The structure of the hanging plate type drive station includes: on the opposite inner walls of the main beams on both sides of the frame, a hanging plate is respectively fixed, a bottom plate is connected between the two hanging plates, a driving rotating shaft is supported between the two hanging plates, and the two ends of the driving rotating shaft respectively extend out of the hanging plates to the two sides and are respectively sleeved with driving sprockets; on the outer side of each hanging plate, an auxiliary sprocket and a tensioning sprocket are also supported, the tensioning sprocket is installed on the corresponding hanging plate through a tensioning mechanism, and each side of the conveyor chain also simultaneously winds around the tensioning sprocket, driving sprocket and auxiliary sprocket on the same side. A driven sprocket is sleeved on the driving rotating shaft between the two hanging plates, a motor is installed on the bottom plate, a driving sprocket is sleeved on the output shaft of the motor, a transmission chain is wound between the driving sprocket and the driven sprocket, and the motor drives the driving rotating shaft to rotate through the driving sprocket, transmission chain and driven sprocket, synchronously driving the driving sprockets at both ends of the driving rotating shaft to rotate simultaneously in the same direction, thereby driving the two conveyor chains to rotate simultaneously in the same direction to convey materials; the structure of the tensioning mechanism includes: a tensioning support installed on the inner side wall of the hanging plate, a long waist hole installed on the hanging plate, the axle of the tensioning sprocket passes through the hanging plate inward through the long waist hole, a tensioning screw rod that can only rotate but cannot move is supported on the tensioning support, the tensioning screw rod radially passes through the axle of the tensioning sprocket and is threadedly connected with the axle, and when the tensioning screw rod is rotated, it can drive the axle to move along the long waist hole to drive the tensioning sprocket to move and tension the conveyor chain.

[0015] By implementing the above technical solutions, the beneficial effects of the present invention are: high dimensional compatibility, capable of grasping bottle caps of multiple cap types, without the need to frequently replace the cap molds, improving work efficiency. Advantages: 1. Adapt to turning tracks, adapt to the distance change between the driven wheel group and the driving wheel group, improve the stability and safety of the trolley, and prevent the trolley from deviating from the track and tipping over. Brief Description of the Drawings

[0016] Figure 1 It is a schematic cross-sectional view of a loop-through system applicable to high-frequency heavy-load working conditions described in the present invention.

[0017] Figure 2 is Figure 1 a schematic structural diagram in the left view direction.

[0018] Figure 3 is Figure 1 a schematic structural diagram in the right view direction.

[0019] Figure 4 is a schematic structural diagram of the vehicle body.

[0020] Figure 5 is Figure 4 a schematic structural diagram in the top view direction.

[0021] Figure 6 is Figure 4 a schematic structural diagram in the left view direction.

[0022] Figure 7 is Figure 6 a partial view in the direction of A as shown in.

[0023] Figure 8 is an assembly schematic diagram of the inner side driving wheel set and the rotating mechanism.

[0024] Figure 9 is Figure 8 a schematic structural diagram of the B-B section shown in.

[0025] Figure 10 is an assembly schematic diagram of the outer side driven wheel set and the rotating and translating mechanism.

[0026] Figure 11 is Figure 10 a schematic structural diagram of the C-C section shown in.

[0027] Figure 12 is a schematic structural diagram of the translation conveyor.

[0028] Figure 13 is Figure 12 a schematic structural diagram in the left view direction.

[0029] Figure 14 is Figure 12 a schematic structural diagram in the top view direction.

[0030] Figure 15 is Figure 12 a schematic structural diagram of the D-D section shown in.

[0031] Figure 16 is a schematic structural diagram of the hanging plate type driving station.

[0032] Figure 17 is Figure 12 a three-dimensional structural schematic diagram of.

[0033] Figure 18 It is a schematic assembly diagram of the outrigger, the inner ring-through track, and the outer ring-through track.

[0034] Figure 19 It is Figure 18 an enlarged schematic diagram of part E shown in

[0035] Figure 20 It is Figure 18 an enlarged schematic diagram of part F shown in

[0036] Figure 21 It is Figure 18 a schematic structural diagram in the left view direction.

[0037] Figure 22 It is Figure 18 a schematic structural diagram in the right view direction.

[0038] Figure 23 It is a schematic structural diagram of the ring-through track system. Detailed implementation manners

[0039] In order to make the objectives, technical solutions, and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0040] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 23 a ring-through system applicable to high-frequency heavy-duty working conditions includes a ring-through track system composed of a ring-shaped inner ring-through track 1 and an outer ring-through track 2, and a vehicle body 3. At least two groups of inner active wheel sets 4 for moving along the inner ring-through track 1 are arranged on the inner side of the bottom of the vehicle body 3. The inner active wheel sets 4 are connected to the inner side of the bottom of the vehicle body 3 through a rotating mechanism 5. At least two groups of outer passive wheel sets 6 for moving along the outer ring-through track 2 are arranged on the outer side of the bottom of the vehicle body 3. The outer passive wheel sets 6 are connected to the outer side of the bottom of the vehicle body 3 through a rotating and translating mechanism 7. The vehicle body 3 moves smoothly along the ring-through track system through each inner active wheel set 4 and each outer passive wheel set 6. A translation conveyor 8 for conveying materials is arranged on the top of the vehicle body 3;

[0041] In this embodiment, as shown in Figure 4 , Figure 5 , Figure 6 , Figure 7As shown in the figure, the structure of the vehicle body 3 includes: a vehicle frame formed by welding at least two horizontal longitudinal rectangular tubes 31 and at least two horizontal transverse rectangular tubes 32 together. On the four sides of the vehicle frame, buffer mounting plates 33 for installing polyurethane buffers are respectively fixed. Polyurethane buffers are installed on the buffer mounting plates 33. A number of reinforcing ribs 34 are connected between the buffer mounting plates 33 and the vehicle frame. On the top of the vehicle frame, a number of vehicle frame upper flange plates 35 for installing the translation conveyor 8 are fixed. On the inner side of the bottom of the vehicle frame, a vehicle frame lower inner flange plate 36 for installing the rotating mechanism 5 is provided. On the outer side of the bottom of the vehicle frame, a vehicle frame lower outer flange plate 37 for installing the rotary translation mechanism 7 is provided;

[0042] In this embodiment, as Figure 8 , Figure 9 shown, the structure of the rotating mechanism 5 includes: a first bearing seat 51 for connecting and fixing with the vehicle frame lower inner flange plate 36. Two tapered roller bearings 52 are installed in the bearing mounting holes of the first bearing seat 51. A first oil filling port 53 is provided on the outer wall of the first bearing seat 51. The first support shaft 54 is vertically penetrated and fixed in the bearing inner rings of the two tapered roller bearings 52. The lower end of the first support shaft 54 extends downward out of the first bearing seat 51 and is fixed with an inner side driving wheel group mounting plate 55. The above rotating mechanism has a simple structure and is convenient for installation and maintenance;

[0043] In this embodiment, as Figure 8 , Figure 9 shown, the structure of the inner side driving wheel group 4 includes: a driving wheel frame 41 for connecting and fixing with the inner side driving wheel group mounting plate 55 of the rotating mechanism 5. On both sides of the driving wheel frame 41, a group of first guide wheel groups 42 are respectively provided. Each group of first guide wheel groups 42 is composed of at least two first guide wheels. The two groups of first guide wheel groups 42 are distributed on both sides of the inner ring track 1. The two groups of first guide rail groups 42 are respectively in rolling contact with the track side walls on both sides of the inner ring track 1. A driving motor 43 is installed on the driving wheel frame 41. A driving wheel 44 is sleeved and fixed on the output shaft of the driving motor 43. The driving wheel 44 is in rolling contact with the track top surface of the inner ring track 1. The above inner side driving wheel group has a simple structure and is convenient for installation and maintenance;

[0044] In this embodiment, as Figure 10 , Figure 11As shown in the figure, the structure of the rotary and translational mechanism 7 includes: a second bearing block 71, in which two tapered roller bearings 52 are installed in the bearing mounting holes of the second bearing block 81. A second oil filling port 72 is provided on the outer wall of the second bearing block. A second support shaft 73 is vertically inserted and fixed in the bearing inner rings of the two tapered roller bearings 52. The lower end of the second support shaft 73 extends downward out of the second bearing block 71 and is fixed with an outer side passive wheel group mounting plate 74. Sliding seats 75 are respectively fixed at both ends of the second bearing block 71. A chute is provided at the top of each sliding seat 75. A linear guide rail 76 is slidably arranged in the chute of each sliding seat 75. A connecting member 77 for mating and connecting with the lower outer flange plate 37 of the vehicle body frame is arranged on each linear guide rail 76. The above-mentioned rotary and translational mechanism has a simple structure and is convenient for installation and maintenance;

[0045] In this embodiment, as Figure 10 , Figure 11 shown, the structure of the outer side passive wheel group 6 includes: a passive wheel frame 61 for connecting and fixing with the outer side passive wheel group mounting plate 84 of the rotary and translational mechanism 8. A group of second guide wheel groups 62 are respectively arranged on both sides of the passive wheel frame 61. Each group of second guide wheel groups 62 is composed of at least two second guide wheels. The two groups of second guide wheel groups 62 are distributed on both sides of the annular outer track 2. The two groups of second guide rail groups are in rolling contact with the side walls of the tracks on both sides of the annular outer track 2 respectively. A passive wheel 63 is supported on the passive wheel frame 61. The passive wheel 63 is in rolling contact with the top surface of the track of the annular outer track 2. The above-mentioned outer side passive wheel group has a simple structure and is convenient for installation and maintenance;

[0046] In this embodiment, as Figure 18 , Figure 19 , Figure 20 , Figure 21 , Figure 22 shown, the annular inner track 1 is formed by butting a number of inner tracks, and the annular outer track 2 is formed by butting a number of outer tracks; The annular inner track 1 and the annular outer track 2 are installed and supported on the leg assembly at the same time. The leg assembly is used to keep the center distance between the annular inner track 1 and the annular outer track 2 consistent. The leg assembly includes a number of legs 9. Each leg 9 supports and connects and fixes the annular inner track 1 and the annular outer track 2 at the same time. The structure of the leg 9 includes: a support plate 91, and two bases 92 respectively arranged below the annular inner track 1 and the annular outer track 2. A lead screw 93 that can only rotate in the base 92 but cannot move up and down is vertically supported on each base 92. The lead screws 93 of the two bases 92 respectively correspond to both ends of the support plate 91. The lead screws 93 of the two bases 92 respectively pass upward through the corresponding ends of the support plate 91 and are threadedly connected with the corresponding ends of the support plate 91. A locking nut 94 is threadedly connected to each lead screw 93; By installing the annular track on the legs, the center distance between the annular inner track and the annular outer track is ensured to be consistent through the legs;

[0047] In this example, as Figure 18 , Figure 19 , Figure 20 , Figure 21 , Figure 22 shown, the specific installation structure of the outrigger 9 and the outer ring-through track 2 is as follows: On both sides of the bottom of the outer ring-through track 2 along its length direction, a first long groove 101 is respectively provided. On both sides of the notch of each first long groove 101, a first retaining edge 102 extending inward into the notch is respectively provided. The first pressing plate 103 is arranged in the first long groove 101 and is restricted in the first long groove 101 by the first retaining edge. A number of first threaded locking holes are provided on the first pressing plate 103. On both sides of the corresponding end of the support plate 91, a number of first through holes are respectively provided. The first through holes on each side of the corresponding end of the support plate 91 correspond one-to-one to the first threaded locking holes on the first pressing plate on the same side. A first locking bolt 104 is provided in each pair of corresponding first threaded locking holes and first through holes. The screw rod of the first locking bolt 104 sequentially passes through the first through hole and is threadedly connected to the first threaded locking hole of the first pressing plate 103. By tightening the first locking bolt 104, the outer ring-through track 2 and the outrigger 9 are locked and fixed;

[0048] The specific installation structure of the outrigger 9 and the inner ring-through track 1 is as follows: On both sides of the bottom of the inner ring-through track 1 along its length direction, a second long groove 201 is respectively provided. On both sides of the notch of each second long groove 201, a second retaining edge 202 extending inward into the notch is respectively provided. The second pressing plate 203 is arranged in the second long groove 201 and is restricted in the second long groove 201 by the second retaining edge 202. A number of second threaded locking holes are provided on the second pressing plate 203. On both sides of the corresponding end of the support plate 91, a number of second through holes are respectively provided. The second through holes on each side of the corresponding end of the support plate 91 correspond one-to-one to the second threaded locking holes on the second pressing plate 203 on the same side. A second locking bolt 204 is provided in each pair of corresponding second threaded locking holes and second through holes. The screw rod of the second locking bolt 204 sequentially passes through the first through hole and is threadedly connected to the second threaded locking hole of the second pressing plate 203. By tightening the second locking bolt 204, the inner ring-through track 1 and the outrigger 9 are locked and fixed;

[0049] In this embodiment, as Figure 18 , Figure 19 , Figure 20 , Figure 21 , Figure 22As shown in the figure, in the inner loop-through track 1, the docking joints of every two adjacent inner tracks are fixedly connected by a connecting plate 10, and a track length expansion compensation sheet 11 is arranged in the track gap at the docking joint of every two adjacent inner tracks; in the outer loop-through track 2, the docking joints of every two adjacent outer tracks are fixedly connected by a connecting plate 10, and a track length expansion compensation sheet 11 is arranged in the track gap at the docking joint of every two adjacent outer tracks; the fixed connection method of using a connecting plate at the track docking joint can ensure that the tracks are not misaligned and have the same height at the docking joint; by arranging a track length expansion compensation sheet 11 in the track gap at the track docking joint, the loop-through track system can be adapted to high-frequency heavy-load working conditions with large temperature differences;

[0050] In this embodiment, as Figure 12 , Figure 13 , Figure 14 , Figure 15 , Figure 16 , Figure 17As shown in the figure, the structure of the translation conveyor 8 includes: a frame 81, at the bottom of the frame 81, a conveyor lower flange plate 82 is installed for connecting and fixing with the upper flange plate 35 of the vehicle frame of the vehicle body 3. On the main beams 83 on the left and right sides of the frame 81, sprocket groups 84 are respectively supported. A transmission chain 85 is wound around each sprocket group 84 on each side. The two transmission chains 85 rotate simultaneously in the same direction under the drive of the hanging plate type drive station to convey materials. The structure of the hanging plate type drive station includes: on the opposite inner walls of the two main beams 83 on both sides of the frame 81, a hanging plate 86 is respectively fixed. A bottom plate 87 is connected between the two hanging plates 86. A driving rotating shaft 88 is supported between the two hanging plates 86. At both ends of the driving rotating shaft 88, it extends outwards from the hanging plates 86 on both sides and driving sprockets 89 are respectively sleeved; on the outer side of each hanging plate 86, an auxiliary sprocket 810 and a tensioning sprocket 811 are also supported. The tensioning sprocket 811 is installed on the corresponding hanging plate 86 through a tensioning mechanism. The transmission chain 85 on each side also simultaneously winds around the tensioning sprocket 811, the driving sprocket 89 and the auxiliary sprocket 810 on the same side. A driven sprocket 812 is sleeved on the driving rotating shaft 88 between the two hanging plates 86. A motor 813 is installed on the bottom plate 87. A driving sprocket 814 is sleeved on the output shaft of the motor 813. A transmission chain 815 is wound between the driving sprocket 814 and the driven sprocket 812. The motor 813 drives the driving rotating shaft 88 to rotate through the driving sprocket 814, the transmission chain 815 and the driven sprocket 812, and simultaneously drives the driving sprockets 89 at both ends of the driving rotating shaft 88 to rotate in the same direction, thereby driving the two transmission chains 85 to rotate in the same direction simultaneously to convey materials; the structure of the tensioning mechanism includes: a tensioning support 816 installed on the inner side wall of the hanging plate 86, a long waist hole installed on the hanging plate 86. The axle 817 of the tensioning sprocket 811 passes through the hanging plate 86 inwards through the long waist hole. A tensioning screw rod 818 that can only rotate and cannot move is supported on the tensioning support 816. The tensioning screw rod 818 radially passes through the axle 817 of the tensioning sprocket 811 and is threadedly connected with the axle 817. When the tensioning screw rod 818 is rotated, it can drive the axle 817 to move along the long waist hole to drive the tensioning sprocket 811 to move and tension the transmission chain 85.

[0051] (1) The vehicle body is formed by welding various rectangular tubes, flange plates, reinforcing rib plates, polyurethane buffer mounting plates, and connecting plates, with high structural strength of the vehicle body; the vehicle body and the translation conveyor are of a separated structure, and the translation conveyor will not be damaged when the vehicle body collides, improving the service life of the translation conveyor and being more suitable for high-frequency and heavy-load operating conditions; (2) It is convenient for assembly, has high assembly efficiency, and is easy to maintain; (3) The inner driving wheel set has a rotating function through the rotating mechanism, and the outer driving wheel set has a rotating and translating function through the rotating and translating mechanism. When turning, the outer driving wheel set will move along the linear guide rail to adapt to the wheelbase change between the inner and outer driving wheel sets during turning, preventing the vehicle body from derailing during turning; (4) Both the rotating mechanism and the rotating and translating mechanism adopt two sets of tapered roller bearings, with better force conditions; (5) It adopts the form of a hanging plate type driving station, and each bearing seat, as well as components such as the tensioning adjustment part and the motor, are all concentrated on the inner side of the translation conveyor, facilitating subsequent maintenance, oil filling, and chain tensioning; (6) The oil filling ports of the rotating mechanism, the oil filling ports of the rotating and translating mechanism, and the guide wheel system are not sealed with sheet metal, facilitating subsequent oil filling and guide wheel adjustment operations and being easy to maintain; (7) The loop-through track system is installed on the support legs, and the center distance between the inner loop-through track and the outer loop-through track is ensured to be consistent through the support legs; the track docking parts are all fixed by connecting plates, so as to ensure that the tracks are not misaligned and have the same height at the docking parts; by setting track length expansion compensation sheets in the track gaps at the track docking parts, the loop-through track system can adapt to high-frequency and heavy-load working conditions with large temperature differences, making the vehicle body run more smoothly at the track joints.

[0052] The above are only the preferred embodiments of the present invention, and do not limit the present invention in any other form. Any modification or equivalent change made according to the technical essence of the present invention still falls within the scope of protection required by the present invention.

Claims

1. A loop-through system applicable to high-frequency heavy-duty working conditions, characterized in that: It includes a loop-through track system composed of a loop-through inner track and a loop-through outer track, and a vehicle body. At least two sets of inner driving wheel sets for moving along the loop-through inner track are arranged on the inner side of the bottom of the vehicle body. The inner driving wheel sets are connected to the inner side of the bottom of the vehicle body through a rotating mechanism. At least two sets of outer driven wheel sets for moving along the loop-through outer track are arranged on the outer side of the bottom of the vehicle body. The outer driven wheel sets are connected to the outer side of the bottom of the vehicle body through a rotating and translating mechanism. The vehicle body moves smoothly along the loop-through track system through each inner driving wheel set and each outer driven wheel set. A translating conveyor for conveying materials is arranged on the top of the vehicle body; The structure of the rotating and translating mechanism includes: a second bearing seat. Two tapered roller bearings are installed in the bearing mounting holes of the second bearing seat. A second oil filling port is arranged on the outer wall of the second bearing seat. A second support shaft vertically penetrates and is fixed in the bearing inner rings of the two tapered roller bearings. The lower end of the second support shaft extends downward out of the second bearing seat and is fixed with an outer driven wheel set mounting plate. Slide seats are respectively fixed at both ends of the second bearing seat. A chute is arranged on the top of each slide seat. A linear guide rail is slidably arranged in each slide seat chute. A connecting piece for cooperating and connecting with the outer flange plate of the vehicle body frame is arranged on each linear guide rail; The structure of the outer driven wheel set includes: a driven wheel frame for connecting and fixing with the outer driven wheel set mounting plate of the rotating and translating mechanism. A set of second guide wheel sets are respectively arranged on both sides of the driven wheel frame. Each set of second guide wheel sets is composed of at least two second guide wheels. The two sets of second guide wheel sets are distributed on both sides of the loop-through outer track. The two sets of second guide wheel sets are respectively in rolling contact with the track side walls on both sides of the loop-through outer track. A driven wheel is supported on the driven wheel frame. The driven wheel is in rolling contact with the track top surface of the loop-through outer track; The loop-through inner track is formed by butting a plurality of inner tracks. The loop-through outer track is formed by butting a plurality of outer tracks; the loop-through inner track and the loop-through outer track are installed and supported by the leg assembly at the same time. The leg assembly is used to keep the center distance between the loop-through inner track and the loop-through outer track consistent. The leg assembly includes a plurality of legs. Each leg supports and connects and fixes the loop-through inner track and the loop-through outer track at the same time. The structure of the leg includes: a support plate, and two bases respectively arranged under the loop-through inner track and the loop-through outer track. A lead screw that can only rotate in the base and cannot move up and down is vertically supported on each base. The lead screws of the two bases respectively correspond to both ends of the support plate. The lead screws of the two bases respectively penetrate upward through the corresponding support plate ends and are threadedly connected to the corresponding support plate ends. A locking nut is threadedly connected to each lead screw.

2. The loop-through system applicable to high-frequency heavy-duty working conditions according to claim 1, wherein: The structure of the vehicle body includes: a frame formed by welding at least two horizontal longitudinal rectangular tubes and at least two horizontal transverse rectangular tubes together. Buffer mounting plates for installing polyurethane buffers are fixed on the four sides of the frame respectively. A number of reinforcing ribs are connected between the buffer mounting plates and the frame. A number of upper flange plates of the frame for installing a translation conveyor are fixed on the top of the frame. Lower inner flange plates of the frame for installing a rotating mechanism are arranged on the inner side of the bottom of the frame. Lower outer flange plates of the frame for installing a rotating and translating mechanism are arranged on the outer side of the bottom of the frame.

3. A loop-through system applicable to high-frequency heavy-duty working conditions according to claim 2, characterized in that: The structure of the rotating mechanism includes: a first bearing seat used for connecting and fixing with the lower inner flange plate of the frame. Two tapered roller bearings are installed in the bearing mounting holes of the first bearing seat. A first oil filling port is arranged on the outer wall of the first bearing seat. A first support shaft is vertically inserted and fixed in the inner rings of the two tapered roller bearings. The lower end of the first support shaft extends downward out of the first bearing seat and is fixed with an inner side driving wheel group mounting plate.

4. A loop-through system applicable to high-frequency heavy-load working conditions according to claim 3, characterized in that: The structure of the inner side driving wheel group includes: a driving wheel frame used for connecting and fixing with the inner side driving wheel group mounting plate of the rotating mechanism. A set of first guide wheel groups are arranged on both sides of the driving wheel frame respectively. Each set of first guide wheel groups is composed of at least two first guide wheels. The two sets of first guide wheel groups are distributed on both sides of the inner side track passing through in a loop. The two sets of first guide wheel groups are respectively in rolling contact with the side walls of the two tracks on both sides of the inner side track passing through in a loop. A driving motor is installed on the driving wheel frame. A driving wheel is sleeved and fixed on the output shaft of the driving motor. The driving wheel is in rolling contact with the top surface of the track of the inner side track passing through in a loop.

5. A loop-through system applicable to high-frequency heavy-duty working conditions according to claim 1, characterized in that: The specific installation structure of the support leg and the outer side track passing through in a loop is as follows: on the bottom of both sides of the outer side track passing through in a loop along its length direction, a first long groove is respectively arranged. On both sides of the notch of each first long groove, first retaining edges extending inward into the notch are respectively arranged. A first pressing plate is arranged in the first long groove and is restricted in the first long groove by the first retaining edges. A number of first threaded locking holes are arranged on the first pressing plate. A number of first through holes are respectively arranged on both sides of the corresponding end of the support plate. The first through holes on each side of the corresponding end of the support plate correspond one by one to the first threaded locking holes on the first pressing plate on the same side. A first locking bolt is arranged in each pair of corresponding first threaded locking holes and first through holes. The screw rod of the first locking bolt sequentially passes through the first through hole and then is threadedly connected to the first threaded locking hole of the first pressing plate; The specific installation structure of the support leg and the inner side track passing through in a loop is as follows: on the bottom of both sides of the inner side track passing through in a loop along its length direction, a second long groove is respectively arranged. On both sides of the notch of each second long groove, second retaining edges extending inward into the notch are respectively arranged. A second pressing plate is arranged in the second long groove and is restricted in the second long groove by the second retaining edges. A number of second threaded locking holes are arranged on the second pressing plate. A number of second through holes are respectively arranged on both sides of the corresponding end of the support plate. The second through holes on each side of the corresponding end of the support plate correspond one by one to the second threaded locking holes on the second pressing plate on the same side. A second locking bolt is arranged in each pair of corresponding second threaded locking holes and second through holes. The screw rod of the second locking bolt sequentially passes through the second through hole and then is threadedly connected to the second threaded locking hole of the second pressing plate.

6. The loop-through system applicable to high-frequency heavy-load working conditions according to claim 1, wherein: In the inner ring-through track, the butt joints of every two adjacent inner tracks are connected and fixed by a connecting plate, and a track length expansion compensation piece is arranged in the track gap at the butt joint of every two adjacent inner tracks; in the outer ring-through track, the butt joints of every two adjacent outer tracks are connected and fixed by a connecting plate, and a track length expansion compensation piece is arranged in the track gap at the butt joint of every two adjacent outer tracks.

7. A loop-through system applicable to high-frequency heavy-duty working conditions according to claim 1, characterized in that: The structure of the translation conveyor includes: a frame, on the bottom of the frame, a conveyor lower flange plate is installed for connecting and fixing with the upper flange plate of the vehicle body frame. On the main beams on the left and right sides of the frame, sprocket groups are respectively supported. A transmission chain is wound around each sprocket group. Driven by the hanging plate type driving station, the two transmission chains rotate simultaneously in the same direction to convey materials. The structure of the hanging plate type driving station includes: on the opposite inner walls of the main beams on both sides of the frame, a hanging plate is respectively fixed. A bottom plate is connected between the two hanging plates. A driving rotating shaft is supported between the two hanging plates. The two ends of the driving rotating shaft respectively extend out of the hanging plates to both sides and are respectively sleeved with driving sprockets; on the outer side of each hanging plate, an auxiliary sprocket and a tensioning sprocket are also supported. The tensioning sprocket is installed on the corresponding hanging plate through a tensioning mechanism. The transmission chain on each side also simultaneously winds around the tensioning sprocket, the driving sprocket and the auxiliary sprocket on the same side. A driven sprocket is sleeved on the driving rotating shaft between the two hanging plates. A motor is installed on the bottom plate. A driving sprocket is sleeved on the output shaft of the motor. A transmission chain is wound between the driving sprocket and the driven sprocket. The motor drives the driving rotating shaft to rotate through the driving sprocket, the transmission chain and the driven sprocket, and simultaneously drives the driving sprockets at both ends of the driving rotating shaft to rotate in the same direction, thereby driving the two transmission chains to rotate in the same direction to convey materials; the structure of the tensioning mechanism includes: a tensioning bracket installed on the inner side wall of the hanging plate, a long waist hole installed on the hanging plate. The axle of the tensioning sprocket passes through the hanging plate inward through the long waist hole. A tensioning screw rod that can only rotate but not move is supported on the tensioning bracket. The tensioning screw rod radially passes through the axle of the tensioning sprocket and is threadedly connected to the axle. When the tensioning screw rod is rotated, it can drive the axle to move along the long waist hole to drive the tensioning sprocket to move and tension the transmission chain.

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