Conveying components for construction machinery

Abstract

The present invention relates to the technical field of conveyor chains, specifically to conveying components for engineering machinery, including inner chain plates and outer chain plates, the inner chain plates and outer chain plates being arranged in pairs and each pair being symmetrically arranged, the outer chain plates being arranged on the outside of the inner chain plates, inner holes being opened on both sides of the inner chain plates, a connecting assembly for easy disassembly and assembly being provided between each pair of inner chain plates, an outer sleeve being sleeved on the outside of the connecting assembly, and an oiling assembly being provided inside the connecting assembly. Due to the provision of the connecting assembly for easy disassembly and assembly, when certain sections of the conveyor chain are damaged, the damaged sections can be replaced without having to scrap the entire chain, thereby further saving costs, and due to the provision of the oiling assembly, lubricating oil can be added from the inside of the conveyor chain, making lubrication more thorough and effective, thereby extending the service life of the conveyor chain.

Description

Technical Field

[0001] The present invention relates to the technical field of conveyor chains, in particular to a conveyor component for engineering machinery. Background Art

[0002] The chain is composed of parts such as chain plates, pins, rollers and sleeves. The conveyor chain is on the load-bearing chain, and higher load-bearing roller accessories are added between each section to carry the goods. The chain rolls and slides on the rollers and tracks. Since the rollers on the chain and the tracks are in rolling contact, the friction resistance is small, the power loss is low and it can carry heavier loads, making conveyor chains more widely used.

[0003] In some construction sites, the loss of conveyor chains is higher than in other scenarios, such as mines and offshore construction areas. For those large conveyor chains, if some links in the chain are worn, they cannot be used normally. The existing treatment method is to replace the entire chain, but for those undamaged parts, idle or scrapped will cause great waste. In addition, during the use of the chain, lubricating oil needs to be added to lubricate and protect the chain. However, most chains are currently made of high-viscosity lubricating oil or grease adhered to the chain surface. Although it can lubricate the chain teeth and chain surface, it can hardly penetrate into the chain pins, bushings and rollers. The lubrication effect is poor, which will aggravate the wear of the chain, so this needs to be improved. Summary of the Invention

[0004] An object of the present invention is to provide a conveying member for construction machinery to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a conveying component for engineering machinery, comprising an inner link plate and an outer link plate, wherein the inner link plate and the outer link plate are arranged in pairs and each pair is arranged in a symmetrical structure, the outer link plate is arranged on the outside of the inner link plate, and inner holes are opened on both sides of the inner link plate, and a connecting component that is easy to disassemble and assemble is provided between each pair of the inner link plates, the outside of the connecting component is sleeved with an outer sleeve, and an oiling component is provided inside the connecting component.

[0006] Preferably, a plurality of positioning holes are opened inside the inner hole.

[0007] Preferably, the connecting assembly includes an inner sleeve, the two ends of the inner sleeve are respectively inserted into the inner holes of the ends of the inner link plates on both sides, a circular hole is opened at the end of the inner sleeve, the circular hole and the positioning hole are aligned, and a mounting block is provided at each end of the inner sleeve, and an array of fixing components for fixing the inner sleeve are installed inside the mounting block.

[0008] Preferably, the connecting assembly also includes a pin shaft, which passes through the inner link plate and the outer link plate and is inserted into the mounting block. The pin shaft includes a first docking shaft and a second docking shaft. A threaded column is rotatably installed inside the first docking shaft, and a threaded hole is opened at the inner end of the second docking shaft. The threaded column is screwed into the threaded hole. The first docking shaft and the second docking shaft are both composed of a disc and a cylinder. The disc is fitted on the outer wall of the outer link plate. The part of the cylinder inserted into the middle of the inner sleeve is a thin section, and the rest is a thick section.

[0009] Preferably, the fixing assembly includes a movable block movably arranged inside the mounting block, one end of the movable block is connected with a positioning boss, the positioning boss passes through the side wall of the mounting block and corresponds to the circular hole at the end of the inner sleeve and the positioning hole, the other end of the movable block is connected with a return spring, the return spring is used to pull the movable block toward the inside of the mounting block, a side toothed plate is installed on the side wall of the movable block, a winding wheel is rotatably installed next to the movable block, the winding wheel is connected to a gear, the gear and the side toothed plate are meshed and connected, a traction wire is wound on the winding wheel, and the traction wire is connected to a movable piece, the movable piece is located at the inner end face of the mounting block, the thin sections on the cylindrical parts of the first docking shaft and the second docking shaft pass through the movable piece, and several pieces are provided on the end face of the central circular hole of the movable piece. The blocking piece, the thick section on the cylindrical part of the first docking shaft and the second docking shaft rests on the blocking piece, the two ends of the inner sleeve are inserted into the inner holes of the two inner chain plates and the circular holes and the positioning holes are aligned, and the first docking shaft and the second docking shaft are used to be inserted from both sides respectively, and the threaded column is rotated to screw it into the threaded hole, so that the first docking shaft and the second docking shaft are close to each other, and the thick short section rests on the blocking piece to push the movable piece toward the middle and then pull the traction wire to rotate the winding wheel. When the winding wheel rotates and drives the gear to rotate, because the gear and the side tooth plate are engaged, the side tooth plate can drive the movable block to move toward the outside of the mounting block, thereby causing the positioning boss to move outward, and the positioning boss passes through the circular hole at the end of the inner sleeve and is inserted into the positioning hole, which can fix the inner sleeve and the inner chain plate.

[0010] Preferably, a hexagonal groove is provided on the outer end surface of the threaded column, and a dynamic sealing ring is provided at the outer end of the connection between the threaded column and the first docking shaft disc to prevent dust and other impurities from entering. A hexagonal groove is also provided in the middle of the outer end surface of the second docking shaft. When connecting the first docking shaft and the second docking shaft, two hexagonal wrenches can be used to insert into the hexagonal groove for rotational connection.

[0011] Preferably, an outer overflow groove is provided on the outer side wall of the inner sleeve, an overflow hole is provided at the center of the outer overflow groove, and the overflow hole passes through the inner sleeve.

[0012] Preferably, inner overflow grooves are provided on the side walls of the thick sections of the first docking shaft and the second docking shaft and on the inner end surfaces of the discs.

[0013] Preferably, the number of the external overflow troughs is no less than six.

[0014] Preferably, the number of the internal overflow troughs is no less than six.

[0015] Preferably, the oil filling assembly includes an inner connecting ring, two of which are symmetrically arranged, and the inner connecting rings are connected to the side wall of the movable sheet through several connecting columns. Movable push rings are movably embedded on the opposite surfaces of the two inner connecting rings, and an oil storage structure is provided inside the movable push ring, which can be a cavity for storing oil or a structure with elastic liquid storage capsule, and an extension plate is provided on the other surface of the inner connecting ring. The extension plate and the baffle are staggered, and the extension plate rests on the connection between the thin section and the thick section. A second oil outlet connected to the oil storage structure is provided at the end of the extension plate, and a side ring is provided on the side wall of the inner connecting ring, and a first oil outlet is provided on the outer side wall of the side ring. The first oil outlet and The oil storage structures are connected. When the installation equipment connects the first docking shaft and the second docking shaft, the first docking shaft and the second docking shaft push the movable pieces on both sides to move, thereby bringing the inner connecting rings on both sides closer together. When the inner connecting rings on both sides fit together, the two movable push rings squeeze each other so that the lubricating oil stored in the oil storage structure is squeezed out, and the lubricating oil overflows from the second oil outlet and the first oil outlet respectively. The lubricating oil overflowing from the second oil outlet can enter the inner overflow groove and is used to lubricate the pin shaft and the contact and connected parts thereof. The lubricating oil overflowing from the first oil outlet enters the outer overflow groove through the overflow hole and can lubricate the inner sleeve and the outer sleeve.

[0016] Preferably, the first oil outlet hole and the overflow hole are aligned.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The conveying component for engineering machinery proposed by the present invention is provided with a connecting component that is easy to disassemble and assemble. When certain sections in the conveying chain are damaged, the damaged parts can be replaced without scrapping the entire chain, which is more cost-effective. In addition, since an oiling component is provided, lubricating oil can be added from the inside of the conveying chain, which makes the lubrication more thorough and the lubrication effect better, thereby extending the service life of the conveying chain.

[0019] 2. When it is necessary to disassemble, repair or replace a section of the chain, use an Allen wrench to disassemble the first docking shaft and the second docking shaft to separate the inner chain plate and the outer chain plate. Then, under the elastic force of the reset spring, the movable block is retracted, and the positioning boss is pulled out from the positioning hole. The inner sleeve can be removed from the inner hole. When installing, insert the two ends of the inner sleeve into the inner holes of the two inner chain plates and align the round holes and the positioning holes. Align the inner chain plate and the outer chain plate, use the first docking shaft and the second docking shaft to insert them from both sides respectively. By rotating the threaded column to screw it into the threaded hole, the first docking shaft and the second docking shaft are brought close to each other. The short and thick piece can be pressed against the baffle to push the movable piece toward the middle and then pull the traction wire to rotate the winding wheel. When the winding wheel rotates and drives the gear to rotate, because the gear and the side tooth plate are engaged, the side tooth plate can drive the movable block to move toward the outside of the mounting block, thereby causing the positioning boss to move outward. The positioning boss passes through the circular hole at the end of the inner sleeve and is inserted into the positioning hole, so that the inner sleeve and the inner chain plate can be fixedly connected, and the damaged part can be replaced.

[0020] 3. When the installation equipment is connected to the first docking shaft and the second docking shaft, the first docking shaft and the second docking shaft push the movable pieces on both sides to move, thereby bringing the inner connecting rings on both sides closer together. When the inner connecting rings on both sides fit together, the two movable push rings squeeze each other so that the lubricating oil stored in the oil storage structure is squeezed out, and the lubricating oil overflows from the second oil outlet and the first oil outlet respectively. The lubricating oil overflowing from the second oil outlet can enter the inner overflow groove and is used to lubricate the pin shaft and the contact and connected parts thereof. The lubricating oil overflowing from the first oil outlet enters the outer overflow groove through the overflow hole, and can lubricate between the inner sleeve and the outer sleeve. Lubricating oil is added from the inside, and the lubrication effect is more thorough. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a single section of the conveyor chain of the present invention.

[0022] Figure 2 Schematic diagram of the internal structure of the outer sleeve 3 of the present invention.

[0023] Figure 3 Schematic diagram of the internal structure of the inner sleeve 5 of the present invention.

[0024] Figure 4 This is a schematic diagram of the connection structure of the pin shaft 6 of the present invention.

[0025] Figure 5 This is a structural diagram of the mounting block 9 of the present invention.

[0026] Figure 6 It is a schematic diagram of the structure of the fixing component of the present invention.

[0027] Figure 7Schematic diagram of the connection structure of the movable block 10 of the present invention.

[0028] Figure 8 This is a structural schematic diagram of the first docking shaft 601 of the present invention.

[0029] Figure 9 Schematic diagram of the structure of the second docking shaft 602 of the present invention.

[0030] Figure 10 This is a structural schematic diagram of the oil filling assembly of the present invention.

[0031] Figure 11 for Figure 10 Another perspective of the structure.

[0032] In the figure: inner link plate 1, outer link plate 2, outer sleeve 3, inner hole 4, inner sleeve 5, pin 6, first docking shaft 601, second docking shaft 602, inner overflow groove 603, threaded column 604, threaded hole 605, outer overflow groove 7, overflow hole 8, mounting block 9, movable block 10, positioning boss 11, positioning hole 12, return spring 13, side tooth plate 14, winding wheel 15, gear 16, traction wire 17, movable sheet 18, baffle 19, inner connecting ring 20, connecting column 21, movable push ring 22, side ring 23, first oil outlet hole 24, extension plate 25, second oil outlet hole 26. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] See also Figures 1 to 11The present invention provides a technical solution: a conveying component for engineering machinery, comprising an inner link plate 1 and an outer link plate 2, the inner link plate 1 and the outer link plate 2 are respectively arranged in pairs and each pair is symmetrically arranged, the outer link plate 2 is arranged on the outside of the inner link plate 1, and inner holes 4 are opened on both sides of the inner link plate 1, and a plurality of positioning holes 12 are opened inside the inner holes 4, and a connecting component for easy disassembly and assembly is provided between each pair of the inner link plates 1, the connecting component comprises an inner sleeve 5, the two ends of the inner sleeve 5 are respectively inserted into the inner holes 4 at the ends of the inner link plates 1 on both sides, a circular hole is opened at the end of the inner sleeve 5, and the circular hole and the positioning hole 12 are aligned, and a mounting block 9 is provided at each end of the inner sleeve 5, the mounting block 9 is a welded assembled structure, and a cavity for installing required accessories is provided inside, and an array of fixing components for fixing the inner sleeve 5 are installed inside the mounting block 9, and the fixing component comprises a movable block 10 movably arranged inside the mounting block 9, One end of the block 10 is connected to a positioning boss 11, which passes through the side wall of the mounting block 9 and corresponds to the circular hole at the end of the inner sleeve 5 and the positioning hole 12. The other end of the movable block 10 is connected to a reset spring 13, which is used to pull the movable block 10 toward the inside of the mounting block 9. A side tooth plate 14 is installed on the side wall of the movable block 10, and a winding wheel 15 is rotatably installed next to the movable block 10. The winding wheel 15 is connected to a gear 16. The gear 16 is meshed and connected with the side tooth plate 14, and a traction wire 17 is wound on the winding wheel 15. The traction wire 17 is connected to a movable piece 18, and the movable piece 18 is located at the inner end face of the mounting block 9. The thin sections on the cylindrical parts of the first docking shaft 601 and the second docking shaft 602 pass through the movable piece 18, and several baffles 19 are provided on the end face of the central circular hole of the movable piece 18, and the thick sections on the cylindrical parts of the first docking shaft 601 and the second docking shaft 602 are against the baffle 19. The connecting assembly also includes a pin shaft 6, which passes through the inner link plate 1 and the outer link plate 2 and is inserted into the mounting block 9. The pin shaft 6 includes a first docking shaft 601 and a second docking shaft 602. A threaded column 604 is rotatably installed inside the first docking shaft 601. A threaded hole 605 is opened at the inner end of the second docking shaft 602. The threaded column 604 is screwed into the threaded hole 605. The first docking shaft 601 and the second docking shaft 602 are both composed of a disc and a cylinder. The disc fits on the outer link plate 1 and the outer link plate 2. On the outer wall of plate 2, the part of the cylinder inserted into the middle of the inner sleeve 5 is a thin section, and the rest is a thick section. A hexagonal groove is provided on the outer end face of the threaded column 604, and a dynamic sealing ring is provided at the outer end of the connection between the threaded column 604 and the first docking shaft 601 disc to prevent dust and other impurities from entering. A hexagonal groove is also provided in the middle of the outer end face of the second docking shaft 602. When connecting the first docking shaft 601 and the second docking shaft 602, two hexagonal wrenches can be used to insert into the hexagonal groove for rotational connection.

[0035] Insert the two ends of the inner sleeve 5 into the inner holes 4 of the two inner link plates 1 and align the circular holes and the positioning holes 12. Use the first docking shaft 601 and the second docking shaft 602 to insert them from both sides respectively. By rotating the threaded column 604, it is screwed into the threaded hole 605, so that the first docking shaft 601 and the second docking shaft 602 are close to each other. The short and thick piece rests on the baffle 19 to push the movable piece 18 toward the middle and then pull the traction wire 17 to rotate the winding wheel 15. When the winding wheel 15 rotates and drives the gear 16 to rotate, because the gear 16 and the side tooth plate 14 are engaged, the side tooth plate 14 drives the movable block 10 to move toward the outside of the mounting block 9, thereby causing the positioning boss 11 to move outward. The positioning boss 11 passes through the circular hole at the end of the inner sleeve 5 and is inserted into the positioning hole 12, so that the inner sleeve 5 and the inner link plate 1 can be fixedly connected.

[0036] An external overflow groove 7 is provided on the outer wall of the inner sleeve 5, and the number of the external overflow grooves 7 is not less than six. An overflow hole 8 is provided at the center of the external overflow groove 7, and the overflow hole 8 passes through the inner sleeve 5. Internal overflow grooves 603 are provided on the side walls of the thick sections of the first docking shaft 601 and the second docking shaft 602 and the inner end surface of the disc, and the number of the internal overflow grooves 603 is not less than six.

[0037] The outer portion of the connecting assembly is sleeved with an outer sleeve 3, and an oil adding assembly is provided in the connecting assembly, and the oil adding assembly includes an inner connecting ring 20, and two inner connecting rings 20 are symmetrically provided. The inner connecting ring 20 is connected to the side wall of the movable piece 18 through several connecting columns 21, and a movable push ring 22 is embedded and movably provided on the opposite surfaces of the two inner connecting rings 20. An oil storage structure is provided inside the movable push ring 22, which can be a cavity for storing oil or a structure such as an elastic liquid storage capsule. An extension plate 25 is provided on the other surface of the inner connecting ring 20, and the extension plate 25 and the baffle 19 are staggered. The extension plate 25 rests on the connection between the thin section and the thick section, and a second oil outlet 26 connected to the oil storage structure is provided at the end of the extension plate 25. A side ring 23 is provided on the side wall of the inner connecting ring 20, and a first oil outlet 24 is provided on the outer side wall of the side ring 23. An oil outlet hole 24 is connected to the oil storage structure, and the first oil outlet hole 24 is aligned with the overflow hole 8. When the installation equipment is connected to the first docking shaft 601 and the second docking shaft 602, the first docking shaft 601 and the second docking shaft 602 push the movable pieces 18 on both sides to move, thereby making the inner connecting rings 20 on both sides close to each other. When the inner connecting rings 20 on both sides fit together, the two movable push rings 22 squeeze each other so that the lubricating oil stored in the oil storage structure is squeezed out, and the lubricating oil overflows from the second oil outlet hole 26 and the first oil outlet hole 24 respectively. The lubricating oil overflowing from the second oil outlet hole 26 can enter the inner overflow groove 603, which is used to lubricate the pin shaft 6 and its contact and connected parts. The lubricating oil overflowing from the first oil outlet hole 24 enters the outer overflow groove 7 through the overflow hole 8, which can lubricate the inner sleeve 5 and the outer sleeve 3.

[0038] When it is necessary to disassemble, repair or replace a certain section of the chain, use an inner hexagonal wrench to disassemble the first docking shaft 601 and the second docking shaft 602, so that the inner link plate 1 and the outer link plate 2 can be separated, and then the movable block 10 is retracted under the elastic force of the return spring 13, so that the positioning boss 11 is pulled out from the positioning hole 12, and the inner sleeve 5 can be removed from the inner hole 4. Then, when installing, insert the two ends of the inner sleeve 5 into the inner holes 4 of the two inner link plates 1 and align the circular holes and the positioning holes 12, and align the inner link plate 1 and the outer link plate 2, use the first docking shaft 601 and the second docking shaft 602 to insert them from both sides respectively, and rotate the threaded column 6 04 is screwed into the threaded hole 605, so that the first docking shaft 601 and the second docking shaft 602 are close to each other. The short and thick piece rests on the baffle 19 to push the movable piece 18 toward the middle and then pull the traction wire 17 to rotate the winding wheel 15. When the winding wheel 15 rotates and drives the gear 16 to rotate, because the gear 16 and the side tooth plate 14 are engaged and connected, the side tooth plate 14 can drive the movable block 10 to move toward the outside of the mounting block 9, thereby moving the positioning boss 11 outward. The positioning boss 11 passes through the circular hole at the end of the inner sleeve 5 and is inserted into the positioning hole 12, so that the inner sleeve 5 and the inner chain plate 1 can be fixedly connected, and the damaged part can be replaced. When the installation equipment connects the first docking shaft 601 and the second docking shaft 602, the first docking shaft 601 and the second docking shaft 602 push the movable plates 18 on both sides to move, thereby bringing the inner connecting rings 20 on both sides closer. When the inner connecting rings 20 on both sides fit together, the two movable push rings 22 squeeze each other so that the lubricating oil stored in the oil storage structure is squeezed out, and the lubricating oil overflows from the second oil outlet 26 and the first oil outlet 24 respectively. The lubricating oil overflowing from the second oil outlet 26 can enter the inner overflow groove 603 and is used to lubricate the pin shaft 6 and its contact and connected parts. The lubricating oil overflowing from the first oil outlet 24 enters the outer overflow groove 7 through the overflow hole 8, and can lubricate the inner sleeve 5 and the outer sleeve 3. Lubricating oil is added from the inside, and the lubrication effect is more thorough.

[0039] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A conveying member for engineering machinery, comprising inner and outer link plates, wherein the inner and outer link plates are arranged in pairs and each pair is symmetrically arranged, the outer link plates are arranged on the outside of the inner link plates, and inner holes are opened on both sides of the inner link plates, characterized in that: The two ends of the inner sleeve are respectively inserted into the inner holes of the two inner link plates on both sides, and a circular hole is opened at the end of the inner sleeve, and the circular hole and the positioning hole are aligned with each other. A mounting block is respectively provided at the two ends of the inner sleeve, and an array of fixing components for fixing the inner sleeve is installed inside the mounting block. The fixing component includes a movable block movably arranged inside the mounting block, one end of the movable block is connected with a positioning boss, the positioning boss passes through the side wall of the mounting block and corresponds to the circular hole at the end of the inner sleeve and the positioning hole. The other end of the movable block is connected with a return spring, and the return spring is used to pull the movable block toward the inside of the mounting block. A side tooth plate is installed on the side wall of the movable block, and a winding wheel is rotatably installed next to the movable block, and the winding wheel is connected to a gear. The cam is meshed with the side gear plate, and a traction wire is wound on the winding wheel, and the traction wire is connected to a movable piece, and the movable piece is located at the inner end face of the mounting block, and the thin section on the cylindrical part of the first docking shaft and the second docking shaft passes through the movable piece, and several blocking pieces are provided on the end face of the central circular hole of the movable piece, and the thick section on the cylindrical part of the first docking shaft and the second docking shaft rests on the blocking piece; the connecting assembly also includes a pin shaft, the pin shaft passes through the inner chain plate and the outer chain plate and is inserted into the mounting block, and the pin shaft includes the first docking shaft and the second docking shaft, a threaded column is rotatably installed inside the first docking shaft, and a threaded hole is provided at the inner end of the second docking shaft, and the threaded column is screwed into the threaded hole, and the first docking shaft and the second docking shaft are both composed of a disc and a cylinder, the disc is fitted on the outer wall of the outer chain plate, the part of the cylinder inserted into the middle of the inner sleeve is the thin section, and the rest of the section is the thick section; An outer sleeve is sleeved on the outside of the connecting assembly, and an oil adding assembly is arranged inside the connecting assembly.

2. The conveying member for construction machinery according to claim 1, characterized in that: A plurality of positioning holes are formed inside the inner hole.

3. The conveying member for construction machinery according to claim 1, characterized in that: A hexagonal groove is provided on the outer end surface of the threaded column, a dynamic sealing ring is provided at the outer end of the connection between the threaded column and the first docking shaft disc, and a hexagonal groove is also provided in the middle of the outer end surface of the second docking shaft.

4. The conveying member for construction machinery according to claim 1, characterized in that: A plurality of external overflow grooves are provided on the outer side wall of the inner sleeve, and an overflow hole is provided at the center of the external overflow groove, and the overflow hole passes through the inner sleeve.

5. The conveying member for construction machinery according to claim 1, characterized in that: A plurality of inner overflow grooves are provided on the thick section side walls of the first docking shaft and the second docking shaft and on the inner end surface of the disc.

6. The conveying member for construction machinery according to claim 4, characterized in that: The number of the external overflow troughs is no less than six.

7. The conveying member for construction machinery according to claim 5, characterized in that: The number of the internal overflow troughs is no less than six.

8. The conveying member for construction machinery according to claim 1, characterized in that: The oil filling assembly includes an inner connecting ring, two of which are symmetrically arranged, and the inner connecting rings are connected to the side wall of the movable plate through several connecting columns. Movable push rings are embedded and movably arranged on the opposite surfaces of the two inner connecting rings, and an oil storage structure is arranged inside the movable push ring. An extension plate is arranged on the other surface of the inner connecting ring, and the extension plate and the baffle are staggered. The extension plate rests on the connection between the thin section and the thick section. A second oil outlet hole connected to the oil storage structure is opened at the end of the extension plate, and a side ring is arranged on the side wall of the inner connecting ring. A first oil outlet hole is opened on the outer side wall of the side ring, and the first oil outlet hole is connected to the oil storage structure.

9. The conveying member for construction machinery according to claim 8, characterized in that: The first oil outlet hole and the overflow hole are aligned.

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