Traction component pedal chain for heavy-load moving sidewalk for airport

Abstract

The invention relates to the technical field of transmission chains, in particular to a traction component pedal chain for a heavy-load moving sidewalk for an airport. On the one hand, friction losses between the end limiting nut and the outer side chain plate, between the outer side chain plate and the inner side chain plate and between the inner side chain plate and the limiting sleeve can be reduced, running jamming is avoided as much as possible, and the pedal chain runs more smoothly and stably; in other words, in the process of adding lubricating oil to the pedal chain or in the later lubricating maintenance process, the lubricating oil can be injected from the oil guide through hole in the side wall of the limiting sleeve, and in the part where the pedal chain is connected with the supporting shaft assembly, the connecting stability of the pedal chain and the supporting shaft assembly is improved through the arranged regulating and stabilizing assembly, and installation and maintenance work is relieved.

Description

Technical Field

[0001] The present invention relates to the technical field of transmission chains, and more particularly to a traction member pedal chain for heavy-duty moving walkways at airports. Background Art

[0002] A document with the publication number CN206530646U discloses a moving walkway pedal chain. The solution includes inner chain links, outer chain links, connecting chain links, outer chain plates, retaining rings, rollers, and pins. Through holes are provided on both sides of the inner chain links, outer chain links, connecting chain links, and outer chain plates. The through holes on both sides of the inner chain links and the outer chain links are sequentially placed on the pins. The through holes on both sides of the outer chain plates are placed on the pins and are in contact with the inner chain links and the outer chain links. Through holes are provided on both sides of the connecting chain links, and the through holes of the connecting chain links are placed on the pins. The through holes on both sides of the outer chain plates are placed on the pins and are in contact with the connecting chain links. The retaining rings are clamped in the card slots of the pins.

[0003] In the above solution and the prior art for the pedal chain used to drive the pedals, the chain body generally consists of inner side chain plates, outer side chain plates, limiting sleeves, pins, and limiting retaining rings. During operation, on the one hand, the limiting retaining rings are in contact with both the inner side chain plates and the outer side chain plates. After long-term operation, frictional damage is inevitable, which may cause the connection between the inner side chain plates and the outer side chain plates to become loose, having a negative impact on the stability of its operation. On the other hand, during the lubrication and maintenance process, it is difficult for the lubricating oil to penetrate into the contact surfaces between the limiting sleeves, limiting retaining rings, inner side chain plates, outer side chain plates, and the pins. Only lubricating oil is applied to the outside of the chain, and its lubrication effect is difficult to meet the lubrication requirements. Moreover, the pedal chain is generally connected to a support shaft assembly, that is, a support shaft assembly is provided between the symmetrically operating pedal chains. The stability of the connection between the support shaft assembly and the pedal chain will also have a certain impact on the operation of the pedal chain.

[0004] Therefore, the present invention provides a traction member pedal chain for heavy-duty moving walkways at airports to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a traction member pedal chain for heavy-duty moving walkways at airports to solve the problems raised in the above background art.

[0006] To achieve the above object, the present invention provides the following technical solutions: A traction member pedal chain for an airport heavy-duty moving walkway, comprising an inner chain plate, an outer chain plate, a limit retaining ring, a limit sleeve, a limit pin shaft, an end limit nut and a support shaft assembly; One end of both the inner chain plate and the outer chain plate is sleeved on the limit pin shaft, and a limit sleeve is sleeved at the middle position of the limit pin shaft. Connecting threads are provided on both side edges of the two ends of the limit pin shaft, and end limit nuts are threadedly connected to the ends of the limit pin shaft; The limit retaining ring is connected to the first auxiliary assembly, the limit sleeve is connected to the second auxiliary assembly, and the support shaft assembly includes a connecting shaft head body, a connecting shaft member and a regulation and stabilization assembly.

[0007] Preferably, the first auxiliary assembly includes auxiliary balls, docking jacks and a first oil guide groove; The auxiliary balls are movably embedded on both sides of the limit retaining ring, the docking jacks are penetrated through the limit retaining ring, and a first oil guide groove is provided on the inner side of the limit retaining ring.

[0008] Preferably, the auxiliary balls are arranged in an equidistant circular shape on both sides of the limit retaining ring.

[0009] Preferably, the docking jacks are also arranged in an equidistant circular shape in the limit retaining ring, and the docking jacks and the first oil guide groove are arranged at corresponding positions and have the same number of sets, and the docking jacks and the first oil guide groove are communicated with each other.

[0010] Preferably, the second auxiliary assembly includes an oil guide through hole, a second oil guide groove, an oil receiving convex body and a docking insertion head; The oil guide through hole is arranged at the middle position of the side wall of the limit sleeve and is penetrated through. One end of the oil guide through hole is arranged on the outer side wall of the limit sleeve, and the other end extends to the inner side of the limit sleeve, and the oil guide through holes are arranged in an equidistant circular shape.

[0011] Preferably, the second oil guide groove is arranged in the limit sleeve and is symmetrically arranged with respect to the oil guide through hole.

[0012] Preferably, one end of the second oil guide groove is communicated with the oil guide through hole, the other end of the second oil guide groove extends to the end face of the limit sleeve, and an oil receiving convex body is fixedly arranged at the notch position where the second oil guide groove is communicated with the oil guide through hole, and the oil receiving convex body is arranged as an arc-shaped plate.

[0013] Preferably, a docking insertion head is fixedly arranged at the notch of the second oil guide groove communicated with the end face of the limit sleeve. The docking insertion head and the docking jacks in the limit retaining ring are arranged at corresponding positions and have the same number of sets, and the length of the docking insertion head is less than the hole depth of the docking jacks.

[0014] Preferably, the connecting shaft head body is arranged at one end of the connecting shaft member. The end surface of the other end of the connecting shaft member is equidistantly provided with first positioning card slots, and the first positioning card slots are equidistantly arranged in a ring shape. The center position of the end surface of the other end of the connecting shaft member is provided with a regulating threaded cavity.

[0015] Preferably, the regulating and stabilizing assembly includes an intermediate bearing shaft body, second positioning card slots, a regulating threaded shaft body and a stabilizing structure; the end surfaces at both ends of the intermediate bearing shaft body are symmetrically provided with second positioning card slots, the second positioning card slots are equidistantly arranged in a ring shape on the end surface of the intermediate bearing shaft body, the center position of the end surface of the intermediate bearing shaft body is provided with a regulating threaded shaft body, and the regulating threaded shaft body is threadedly connected with the regulating threaded cavity at the end of the connecting shaft member in a matching manner.

[0016] Preferably, the stabilizing structure includes a stabilizing top plate, a fitting arc surface, a positioning block, a connecting threaded column, an internally threaded regulating cylinder and a rotating auxiliary rib; the two ends of the internally threaded regulating cylinder are symmetrically and threadedly connected with connecting threaded columns in a matching manner, and a rotating auxiliary rib is fixedly arranged on the outer side wall of the internally threaded regulating cylinder, and the connecting threaded column is fixedly arranged on one side of the stabilizing top plate.

[0017] Preferably, a positioning block is fixedly arranged on the other side of the stabilizing top plate, the positioning block is snap-fitted with the second positioning card slot, and the positioning block is also snap-fitted with the first positioning card slot. The number of groups of the stabilizing top plate and the connecting threaded column is the same, and the stabilizing top plate is arranged as an arc plate. A fitting arc surface is arranged on the inner side of the stabilizing top plate, and the fitting arc surface is fitted with the side wall of the connecting threaded column in a matching manner.

[0018] Compared with the prior art, the beneficial effects of the present invention are: The traction member pedal chain for heavy-duty moving walkways at airports designed in this solution includes an inner chain plate, an outer chain plate, a limit retaining ring, a limit sleeve, a limit pin shaft, an end limit nut, and a support shaft assembly; one end of both the inner chain plate and the outer chain plate is sleeved on the limit pin shaft, and a limit sleeve is sleeved in the middle position of the limit pin shaft. Connecting threads are provided on both side edges of the two ends of the limit pin shaft, and an end limit nut is threadedly connected to the end of the limit pin shaft; among them, the limit retaining ring is connected to the first auxiliary component, the limit sleeve is connected to the second auxiliary component, and the support shaft assembly includes a connecting shaft head body, a connecting shaft member, and a regulation and stabilization component; among them, the limit retaining ring set in this solution is provided with limit retaining rings between the end limit nut and the outer chain plate, between the outer chain plate and the inner chain plate, and between the inner chain plate and the limit sleeve. On the one hand, auxiliary balls are symmetrically and movably arranged on both sides of the limit retaining ring. That is, during the operation of the pedal chain, the frictional losses between the end limit nut and the outer chain plate, between the outer chain plate and the inner chain plate, and between the inner chain plate and the limit sleeve can be reduced, and operation jams can be avoided as much as possible, making the pedal chain run more smoothly and stably. On the other hand, the limit retaining ring and the limit sleeve can also be used in cooperation. That is, when adding lubricating oil to the pedal chain or during later lubrication maintenance, lubricating oil can be filled through the oil guiding through holes on the side wall of the limit sleeve. At the part where the pedal chain is connected to the support shaft assembly, the regulation and stabilization component set in this solution is used to improve its connection stability and reduce the installation and maintenance work. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic plan view of the structural connection between the pedal chain and the support shaft assembly of the present invention; Figure 2 is a schematic front view of the structural connection explosion of the pedal chain of the present invention; Figure 3 is a schematic rear view of the structural connection explosion of the pedal chain of the present invention; Figure 4 is a schematic front view of the structural connection of the limit retaining ring of the present invention; Figure 5 is a bottom view of the structural connection of the limit retaining ring of the present invention; Figure 6 is a schematic diagram of the structural connection of the limit sleeve of the present invention; Figure 7 is a partial cross-sectional view of the internal structural connection of the limit sleeve of the present invention; Figure 8 is Figure 7 an enlarged schematic diagram of the structural connection at position A in Figure 9 is an exploded schematic diagram of the structural connection between the connecting shaft member and the regulation and stabilization component in the support shaft assembly of the present invention; Figure 10 is Figure 9Schematic enlarged view of the structure connection at B in [the figure]; Figure 11 For Figure 9 Schematic enlarged view of the structure connection at C in [the figure]; Figure 12 Schematic explosion view of the stable structure connection of the present invention.

[0020] In the figure: inner side link plate 1, outer side link plate 2, limit retaining ring 3, auxiliary ball 301, docking socket 302, first oil guide groove 303, limit sleeve 4, oil guide through hole 401, second oil guide groove 402, oil receiving convex body 403, docking plug head 404, limit pin shaft 5, end limit nut 6, connection shaft head body 701, connection shaft member 702, first positioning card slot 7021, regulation thread groove cavity 7022, intermediate bearing shaft body 801, second positioning card slot 802, regulation thread shaft body 803, stable top plate 8041, fitting arc surface 8042, positioning block 8043, connection thread column 8044, internal thread regulation cylinder body 8045, rotation auxiliary convex strip 8046. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present invention will be described clearly and completely. For the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Embodiment 1: Please refer to Figures 1 - 12 , the traction member pedal chain for an airport heavy-duty moving walkway, including an inner side link plate 1, an outer side link plate 2, a limit retaining ring 3, a limit sleeve 4, a limit pin shaft 5, an end limit nut 6 and a support shaft assembly; one ends of both the inner side link plate 1 and the outer side link plate 2 are sleeved on the limit pin shaft 5, and a limit sleeve 4 is sleeved in the middle position of the limit pin shaft 5. Connecting threads are provided on both side edges of the two ends of the limit pin shaft 5, and an end limit nut 6 is threadedly connected to the end of the limit pin shaft 5; among them, the limit retaining ring 3 is connected to the first auxiliary assembly, the limit sleeve 4 is connected to the second auxiliary assembly, and the support shaft assembly includes a connection shaft head body 701, a connection shaft member 702 and a regulation and stabilization assembly.

[0023] In this solution for the installation and use of the pedal chain, at the position connected to the support shaft assembly, first, a limit retaining ring 3 is sleeved on the connecting shaft head body 701. Then, one end of an outer chain plate 2 is sleeved on the connecting shaft head body 701, and one side of the outer chain plate 2 is closely attached to the already sleeved limit retaining ring 3. Then, another limit retaining ring 3 is sleeved, followed by an inner chain plate 1, and then another limit retaining ring 3 is sleeved. Then, a limit sleeve 4 is sleeved. During the process of sleeving and installing the limit sleeve 4, the docking insertion tube head 404 at the end of the limit sleeve 4 needs to be inserted into the docking jack 302 on the already sleeved limit retaining ring 3. In this process, after the docking insertion tube head 404 is inserted into the docking jack 302, the docking insertion tube head 404 does not block the notch of the first oil guide groove 303 in the docking jack 302. After the limit sleeve 4 is sleeved, immediately, another limit retaining ring 3 is sleeved, and the docking jack 302 on this limit retaining ring 3 also needs to be inserted into the docking insertion tube head 404 at the end of the limit sleeve 4. Then, an inner chain plate 1 and an outer chain plate 2 are successively sleeved and installed, and finally, the end limit nut 6 is installed by threaded connection, and the connection and installation of the chain and the support shaft assembly are completed according to this procedure.

[0024] The first auxiliary component includes auxiliary balls 301, docking jacks 302, and first oil guide grooves 303. The auxiliary balls 301 are movably and fittingly arranged on both sides of the limit retaining ring 3. The docking jacks 302 are arranged through the limit retaining ring 3, and the first oil guide grooves 303 are arranged on the inner side of the limit retaining ring 3. The auxiliary balls 301 are arranged in an equidistant and annular shape on both sides of the limit retaining ring 3. The docking jacks 302 are also arranged in an equidistant and annular shape in the limit retaining ring 3, and the positions and the number of sets of the docking jacks 302 and the first oil guide grooves 303 correspond to each other, and the docking jacks 302 and the first oil guide grooves 303 are communicated with each other. The second auxiliary component includes oil guide through holes 401, second oil guide grooves 402, oil receiving convex bodies 403, and docking plug heads 404. The oil guide through holes 401 are arranged at the middle position of the side wall of the limit sleeve 4 and are arranged through. One end of the oil guide through hole 401 is arranged on the outer side wall of the limit sleeve 4, and the other end extends to the inner side of the limit sleeve 4, and the oil guide through holes 401 are arranged in an equidistant and annular shape. The second oil guide grooves 402 are arranged in the limit sleeve 4 and are symmetrically arranged with respect to the oil guide through holes 401. One end of the second oil guide groove 402 is communicated with the oil guide through hole 401, and the other end of the second oil guide groove 402 extends to the end face of the limit sleeve 4. An oil receiving convex body 403 is fixedly arranged at the notch position of the second oil guide groove 402 where it is communicated with the oil guide through hole 401, and the oil receiving convex body 403 is arranged as an arc-shaped plate. A docking plug head 404 is fixedly arranged at the notch of the second oil guide groove 402 where it is communicated with the end face of the limit sleeve 4. The positions and the number of sets of the docking plug heads 404 and the docking jacks 302 in the limit retaining ring 3 correspond to each other, and the length of the docking plug head 404 is less than the hole depth of the docking jack 302.

[0025] For the position where the chain is not connected to the support shaft assembly, this position needs to be supported by the provided limit pin 5, that is, a limit sleeve 4 is sleeved at the middle position of the limit pin 5, and then limit retaining rings 3 are symmetrically sleeved and installed at both ends of the limit sleeve 4. The docking jacks 302 on the limit retaining rings 3 at both ends of the limit sleeve 4 need to be inserted into the docking plug heads 404 at the ends of the limit sleeve 4. Then, the inner chain plate 1, the limit retaining ring 3, the outer chain plate 2, and the limit retaining ring 3 are sequentially sleeved and installed. Finally, end limit nuts 6 are threadedly connected and installed at both ends of the limit pin 5, and the installation of the chain at this position can be completed.

[0026] The limiting retaining ring 3 provided in this solution is provided between the end limiting nut 6 and the outer side link plate 2, between the outer side link plate 2 and the inner side link plate 1, and between the inner side link plate 1 and the limiting sleeve 4. On the one hand, auxiliary balls 301 are symmetrically and movably arranged on both sides of the limiting retaining ring 3. That is, during the operation of the pedal chain, the frictional losses between the end limiting nut 6 and the outer side link plate 2, between the outer side link plate 2 and the inner side link plate 1, and between the inner side link plate 1 and the limiting sleeve 4 can be reduced, and operation jams can be avoided as much as possible, making the pedal chain run more smoothly and stably. On the other hand, the limiting retaining ring 3 and the limiting sleeve 4 can also be used in cooperation. That is, during the lubricating oil addition or later lubrication maintenance of the pedal chain, lubricating oil can be filled through the oil guiding through hole 401 on the side wall of the limiting sleeve 4. On the one hand, the filled lubricating oil can reach the surface of the limiting pin shaft 5 or the connecting shaft head body 701 of the support shaft assembly through the oil guiding through hole 401. On the other hand, a part of the lubricating oil will enter the second oil guiding groove 402 in the limiting sleeve 4 from the oil receiving convex body 403 position, and then flow out from the second oil guiding groove 402 through the docking insertion socket head 404, that is, enter the docking insertion socket 302 adjacent to the limiting sleeve 4. A part of the lubricating oil entering the docking insertion socket 302 will flow out from the other end orifice of the docking insertion socket 302, that is, come into contact with the inner side link plate 1, further reducing the frictional damage caused by the inner side link plate 1 during operation. Another part of the lubricating oil enters the first oil guiding groove 303 in the limiting retaining ring 3 and reaches the bottom of the first oil guiding groove 303 to contact the limiting pin shaft 5 or the connecting shaft head body 701. With the operation of the pedal chain, the lubricating oil will soak into the adjacent limiting retaining ring 3, inner side link plate 1 and outer side link plate 2 positions, that is, reducing the running friction between the limiting retaining ring 3, inner side link plate 1 and outer side link plate 2 and the limiting pin shaft 5, and further improving the running stability of the pedal chain; among them, the lubricating oil flowing out from the docking insertion socket 302 on the limiting retaining ring 3 can also lubricate the auxiliary balls 301 on the limiting retaining ring 3, that is, ensuring the mobility of the auxiliary balls 301 and avoiding the problem of jamming of the auxiliary balls 301 during long-term use.

[0027] At the part where the pedal chain is connected to the support shaft assembly, in order to better improve its connection stability and reduce the installation and maintenance work, in this solution, first positioning card slots 7021 are equidistantly arranged on the end face at the other end of the connecting shaft member 702, and the first positioning card slots 7021 are arranged in an equidistant annular shape. A regulation threaded groove cavity 7022 is arranged at the center position of the end face at the other end of the connecting shaft member 702; the connecting shaft head body 701 is arranged at one end of the connecting shaft member 702. The regulation and stabilization assembly here includes an intermediate bearing shaft body 801, a second positioning card slot 802, a regulation threaded shaft body 803 and a stabilization structure; second positioning card slots 802 are symmetrically arranged on the end faces at both ends of the intermediate bearing shaft body 801, and the second positioning card slots 802 are arranged in an equidistant annular shape on the end face of the intermediate bearing shaft body 801. A regulation threaded shaft body 803 is arranged at the center position of the end face of the intermediate bearing shaft body 801, and the regulation threaded shaft body 803 is threadedly connected to the regulation threaded groove cavity 7022 at the end of the connecting shaft member 702 in a matching manner; that is, the arranged intermediate bearing shaft body 801 and the connecting shaft member 702 are threadedly connected through the regulation threaded shaft body 803 and the regulation threaded groove cavity 7022. The purpose in this process is that when the pedal chain is connected to the support shaft assembly, after the outer chain plate 2, the limit retaining ring 3, the inner chain plate 1 and the limit sleeve 4 are sleeved and installed, when the end limit nut 6 is threadedly connected to the end of the connecting shaft head body 701, in order to ensure the tightness of the sleeving between the outer chain plate 2, the limit retaining ring 3, the inner chain plate 1 and the limit sleeve 4, after the end limit nut 6 is threadedly installed, the intermediate bearing shaft body 801 can be rotated, and the intermediate bearing shaft body 801 drives the regulation threaded shaft body 803 to rotate with the regulation threaded groove cavity 7022 at the end of the connecting shaft member 702, that is, the connecting shaft member 702 can be pushed outwards to press from the inner side of the chain, so as to improve the connection stability between the outer chain plate 2, the limit retaining ring 3, the inner chain plate 1 and the limit sleeve 4.

[0028] Regarding the coordination and control work between the intermediate bearing shaft body 801 and the connecting shaft member 702, in order to further improve the stability after the coordination and control, this solution is achieved through the set stable structure, that is, the stable structure includes a stable top plate 8041, a fitting arc surface 8042, a positioning block 8043, a connecting threaded column 8044, an internal thread adjusting cylinder 8045, and a rotating auxiliary rib 8046; both ends of the internal thread adjusting cylinder 8045 are symmetrically and adaptively thread-connected with the connecting threaded column 8044, and the outer side wall of the internal thread adjusting cylinder 8045 is fixedly provided with a rotating auxiliary rib 8046, and the connecting threaded column 8044 is fixedly provided on one side of the stable top plate 8041; on the other side of the stable top plate 8041, a positioning block 8043 is fixedly provided, the positioning block 8043 is adaptively clamped with the second positioning slot 802, and the positioning block 8043 is also adaptively clamped with the first positioning slot 7021. The number of sets of the stable top plate 8041 and the connecting threaded column 8044 is the same, and the stable top plate 8041 is set as an arc plate, and a fitting arc surface 8042 is arranged on the inner side of the stable top plate 8041, and the fitting arc surface 8042 is adaptively fitted with the side wall of the connecting threaded column 8044; that is, after the intermediate bearing shaft body 801 and the connecting shaft member 702 are coordinated and controlled, then the stable top plate 8041 is placed, that is, the fitting arc surface 8042 on the inner side of the stable top plate 8041 is closely attached to the side wall of the adjusting threaded shaft body 803, and then the internal thread adjusting cylinder 8045 is rotated by fingers. During the rotation of the internal thread adjusting cylinder 8045, under the rotational action of the threaded connection between the connecting threaded column 8044 and the internal thread adjusting cylinder 8045, the stable top plate 8041 is pushed and pressed to both sides until one of the stable top plates 8041 is closely attached to the end face of the connecting shaft member 702, and the other stable top plate 8041 is closely attached to the end face of the intermediate bearing shaft body 801, and the positioning block 8043 on the side wall of one of the stable top plates 8041 is clamped with the first positioning slot 7021 at the end of the connecting shaft member 702, and the positioning block 8043 on the side wall of the other stable top plate 8041 is clamped with the second positioning slot 802 on the end face of the intermediate bearing shaft body 801, and finally the internal thread adjusting cylinder 8045 is tightened, and the coordination and control stability of the intermediate bearing shaft body 801 and the connecting shaft member 702 can be completed.

[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. The traction member pedal chain for heavy-duty moving walkways at airports includes an inner chain plate (1), an outer chain plate (2), a limit retaining ring (3), a limit sleeve (4), a limit pin shaft (5), an end limit nut (6), and a support shaft assembly; one end of both the inner chain plate (1) and the outer chain plate (2) is sleeved on the limit pin shaft (5), and a limit sleeve (4) is sleeved in the middle position of the limit pin shaft (5). Connecting threads are provided on both side edges of the limit pin shaft (5), and an end limit nut (6) is threadedly connected to the end of the limit pin shaft (5). It is characterized in that: The limit retaining ring (3) is connected to a first auxiliary assembly, the limit sleeve (4) is connected to a second auxiliary assembly, and the support shaft assembly includes a connecting shaft head body (701), a connecting shaft member (702), and a regulation and stabilization assembly.

2. The traction member pedal chain for an airport heavy-duty moving walkway according to claim 1, characterized in that: The first auxiliary assembly includes auxiliary balls (301), docking jacks (302), and a first oil guide groove (303); the auxiliary balls (301) are movably embedded on both sides of the limit retaining ring (3), the docking jacks (302) are penetrated through the limit retaining ring (3), and a first oil guide groove (303) is provided inside the limit retaining ring (3).

3. The traction member pedal chain for heavy-duty moving walkways at airports according to claim 2, characterized in that: The auxiliary balls (301) are arranged in an equidistant circular pattern on both sides of the limit retaining ring (3).

4. The traction member pedal chain for an airport heavy-duty moving walkway according to claim 2, characterized in that: The docking jacks (302) are also arranged in an equidistant circular pattern in the limit retaining ring (3), and the docking jacks (302) and the first oil guide groove (303) are arranged at corresponding positions and have the same number of sets, and the docking jacks (302) and the first oil guide groove (303) are communicated with each other.

5. The traction member pedal chain for heavy-duty moving walkways at airports according to claim 1, characterized in that: The second auxiliary assembly includes an oil guide through hole (401), a second oil guide groove (402), an oil receiving convex body (403), and a docking insertion head (404); the oil guide through hole (401) is provided in the middle position of the side wall of the limit sleeve (4) and is penetrated through. One end of the oil guide through hole (401) is provided on the outer side wall of the limit sleeve (4), and the other end extends to the inner side of the limit sleeve (4), and the oil guide through hole (401) is arranged in an equidistant circular pattern.

6. The traction member pedal chain for an airport heavy-duty moving walkway according to claim 5, characterized in that: The second oil guide groove (402) is provided in the limit sleeve (4) and is symmetrically arranged with respect to the oil guide through hole (401).

7. The traction member pedal chain for an airport heavy-duty moving walkway according to claim 5, characterized in that: One end of the second oil guide groove (402) is communicated with the oil guide through hole (401), and the other end of the second oil guide groove (402) extends to the end face of the limit sleeve (4). An oil receiving convex body (403) is fixedly provided at the notch position where the second oil guide groove (402) is communicated with the oil guide through hole (401), and the oil receiving convex body (403) is provided as an arc-shaped plate.

8. The traction member pedal chain for heavy-duty moving walkways at airports according to claim 5, characterized in that: A docking insertion head (404) is fixedly provided at the notch where the second oil guide groove (402) is communicated with the end face of the limit sleeve (4). The docking insertion head (404) and the docking jacks (302) in the limit retaining ring (3) are arranged at corresponding positions and have the same number of sets, and the length of the docking insertion head (404) is less than the hole depth of the docking jacks (302).

9. The traction member pedal chain for an airport heavy-duty moving walkway according to claim 1, characterized in that: The connecting shaft head body (701) is arranged at one end of the connecting shaft member (702). The end face of the other end of the connecting shaft member (702) is equidistantly provided with first positioning card slots (7021), and the first positioning card slots (7021) are arranged in an equidistant annular shape. The center position of the end face of the other end of the connecting shaft member (702) is provided with a regulating threaded groove cavity (7022).

10. The traction member pedal chain for heavy-duty moving walkways at airports according to claim 1, characterized in that: The regulating and stabilizing assembly includes an intermediate bearing shaft body (801), a second positioning card slot (802), a regulating threaded shaft body (803) and a stabilizing structure; the end faces at both ends of the intermediate bearing shaft body (801) are symmetrically provided with second positioning card slots (802), the second positioning card slots (802) are arranged in an equidistant annular shape on the end face of the intermediate bearing shaft body (801), the center position of the end face of the intermediate bearing shaft body (801) is provided with a regulating threaded shaft body (803), and the regulating threaded shaft body (803) is threadedly connected to the regulating threaded groove cavity (7022) at the end of the connecting shaft member (702) in an adapted manner.

11. The traction member pedal chain for an airport heavy-duty moving walkway according to claim 10, characterized in that: The stabilizing structure includes a stabilizing top plate (8041), a fitting arc surface (8042), a positioning block (8043), a connecting threaded column (8044), an internally threaded regulating cylinder (8045) and a rotating auxiliary rib (8046); the two ends of the internally threaded regulating cylinder (8045) are symmetrically and threadedly connected with connecting threaded columns (8044) in an adapted manner, and the outer side wall of the internally threaded regulating cylinder (8045) is fixedly provided with a rotating auxiliary rib (8046), and the connecting threaded column (8044) is fixedly arranged on one side of the stabilizing top plate (8041).

12. The traction member pedal chain for an airport heavy-duty moving walkway according to claim 11, characterized in that: The other side of the stabilizing top plate (8041) is fixedly provided with a positioning block (8043), the positioning block (8043) is snap-fitted with the second positioning card slot (802), and the positioning block (8043) is also snap-fitted with the first positioning card slot (7021). The number of groups of the stabilizing top plate (8041) and the connecting threaded column (8044) is the same, and the stabilizing top plate (8041) is arranged as an arc-shaped plate. The inner side of the stabilizing top plate (8041) is provided with a fitting arc surface (8042), and the fitting arc surface (8042) is adapted to fit with the side wall of the connecting threaded column (8044).

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