CN112855896B

CN112855896B - Flexible duplex sprocket

Info

Publication number: CN112855896B
Application number: CN202110047306.2A
Authority: CN
Inventors: 王平; 徐之佩; 李冬冬
Original assignee: Chaohu Dingchang Conveying Machinery Co ltd
Current assignee: Chaohu Dingchang Conveying Machinery Co Ltd
Priority date: 2021-01-14
Filing date: 2021-01-14
Publication date: 2022-09-02
Anticipated expiration: 2041-01-14
Also published as: CN112855896A

Abstract

The invention relates to the field of chain wheels, in particular to a flexible duplex chain wheel which comprises a base, a support, a first movable arm, a second movable arm and two wheel disc assemblies, wherein the support is fixed on the side wall of the base, one end of the support, far away from the base, is connected with a screw rod in a penetrating mode, one end of the screw rod is connected with a nut for locking the screw rod in a rotating mode, the first movable arm and the second movable arm which are arranged in a V-shaped structure are arranged on the support, and the top ends of the first movable arm and the second movable arm are connected with a rotating shaft. Can solve current flexible duplex sprocket when using because adopt welded fastening's mode to connect between two rim plates of duplex sprocket, can't carry out the adjustment of interval according to the actually required bearing capacity and ensure stability, secondly, the lubrication of sprocket adopts the mode of instiling into, applying paint lubricating oil with a brush more, causes the waste of lubricating oil easily on the one hand, and on the other hand needs regularly to carry out the replenishment of lubricating oil, and is comparatively troublesome.

Description

Flexible duplex sprocket

Technical Field

The invention relates to the field of chain wheels, in particular to a flexible duplex chain wheel.

Background

The sprocket is a wheel of taking cogged formula sprocket, supplies chain conveyor pivoted essential element, and the duplex sprocket is the sprocket of double structure, and it is bigger to compare the bearing capacity with the single chain wheel, and the security performance is higher, and flexible duplex sprocket is one kind of duplex sprocket, and the sprocket of sprocket adopts flexible metal material, can reduce the wearing and tearing in the sprocket use to the life of extension sprocket.

The flexible duplex sprocket that has now still has certain defect when using, at first because adopt welded fastening's mode to connect between two rim plates of duplex sprocket, can't carry out the adjustment of interval according to the actually required bearing capacity and ensure stability, secondly, the lubricated mode that adopts dropwisely into, apply paint lubricating oil with a brush more of sprocket, causes the waste of lubricating oil on the one hand easily, and on the other hand needs regularly to carry out the replenishment of lubricating oil, and is comparatively troublesome.

Disclosure of Invention

The invention aims to provide a flexible duplex sprocket, which can solve the problem that the existing flexible duplex sprocket is difficult to be used because two wheel discs of the duplex sprocket are connected in a welding and fixing mode and cannot adjust the distance according to the actually required bearing capacity to ensure the stability, and secondly, lubrication of the sprocket is mostly performed in a mode of dripping and brushing lubricating oil, so that the waste of the lubricating oil is easily caused on one hand, and the lubricating oil needs to be supplemented regularly, so that the problem is troublesome.

The purpose of the invention can be realized by the following technical scheme:

a flexible duplex sprocket comprises a base, a support, a first movable arm, a second movable arm and two wheel disc assemblies, wherein the support is fixed on the side wall of the base, one end of the support, far away from the base, is penetrated by a screw rod, one end of the screw rod is screwed by a nut for locking the screw rod, the first movable arm and the second movable arm which are arranged in a V-shaped structure are arranged on the support, the top ends of the first movable arm and the second movable arm are both connected with a rotating shaft, the rotating shaft at the top end of the first movable arm penetrates through a first supporting arm and is connected with one wheel disc assembly, the rotating shaft at the top end of the second movable arm penetrates through a second supporting arm and is connected with one wheel disc assembly, a cylinder is arranged between the first supporting arm and the second supporting arm, two ends of the cylinder are both connected with a pneumatic rod, one of the pneumatic rods is inserted into an inner cavity inside the first supporting arm and is connected with a piston, the other pneumatic rod is connected into an inner cavity in the second support arm and is connected with a piston, a lantern ring is fixed on each of the adjacent side walls of the first support arm and the second support arm, the pneumatic rod penetrates through the lantern ring, and a connecting pipe is connected to each of the side walls of the ends, far away from the first support arm and the second support arm;

two the rim plate subassembly comprises first sprocket, second sprocket, be connected through a telescopic link between first sprocket, the second sprocket, the telescopic link is connected with the connecting pipe, the lateral wall middle part that first sprocket, second sprocket kept away from mutually all is provided with a lubricating oil chamber that is the loop configuration, be provided with an oil inlet that has the valve on the lubricating oil chamber lateral wall, all be provided with a plurality of evenly distributed's side tooth on first sprocket, the second sprocket.

Preferably, each oil outlet cavity is formed in the outer walls of the two sides of the side tooth, a spring is arranged in each oil outlet cavity, the top end of the spring is connected with a steel ball protruding from each oil outlet cavity, the bottom end of the spring is connected with the inner wall of the bottom of each oil outlet cavity, a plurality of connecting grooves are connected to the side wall of each lubricating oil cavity, one ends of the connecting grooves extend into the side tooth, and each end, extending into the side tooth, of each connecting groove is connected with the oil outlet cavity.

Preferably, the outer walls of the two sides of the middle part of the steel ball are respectively provided with a groove, and the grooves are positioned outside the oil outlet cavity when the spring is not extruded.

Preferably, the first chain wheel and the second chain wheel are movably connected through a telescopic rod.

Preferably, the first movable arm and the second movable arm are connected in a rotating mode through a screw rod, the larger the included angle between the first movable arm and the second movable arm is, and the larger the distance between the two wheel disc assemblies is.

The invention has the beneficial effects that: the first movable arm and the second movable arm are connected with each other in a rotating mode through the screw, so that the distance between the two wheel disc assemblies can be adjusted, after the screw cap is unscrewed, the air cylinder is started by using an external power source, the first movable arm and the second movable arm are shifted, the included angle between the first movable arm and the second movable arm is increased, the distance between the two wheel disc assemblies is increased, due to the arrangement of the inner cavities of the first support arm and the second support arm, the first chain wheel and the second chain wheel of the wheel disc assemblies are connected with each other through the telescopic rod, the inner cavities are connected with the telescopic rod through the connecting pipe, after the air cylinder is started, the two pneumatic rods can be driven by the air cylinder to be simultaneously shortened, the air cylinder is used for drawing the piston in the direction of the air cylinder in the inner cavity, the connecting pipe is used for drawing the gas in the telescopic rod into the inner cavity in the moving process of the piston, and the telescopic rod is shortened, after the telescopic rod is shortened, the distance between the first chain wheel and the second chain wheel is shortened, so that the distance between two chains installed between the two wheel disc assemblies is reduced by shortening the width of the wheel disc assemblies after the distance between the two wheel disc assemblies is increased, on one hand, the width of the wheel disc assemblies can be freely adjusted according to actual requirements, on the other hand, the width of the wheel disc assemblies can be adjusted along with the adjustment of the distance between the two wheel disc assemblies while the distance between the two wheel disc assemblies is adjusted, and therefore the stability of the chain during transmission cannot be influenced by the adjustment of the distance between the two wheel disc assemblies;

because the outer walls of two sides of each side tooth are respectively provided with an oil outlet cavity, the inside of each oil outlet cavity is provided with a spring, the top end of each spring is connected with a steel ball protruding from the oil outlet cavity, the bottom end of each spring is connected with the inner wall of the bottom of the oil outlet cavity, the side wall of the lubricating oil cavity is connected with a plurality of connecting grooves, one end of each connecting groove extends to the inside of the side tooth, one end of each connecting groove extending to the inside of the side tooth is connected with the oil outlet cavity, the outer walls of two sides of the middle part of each steel ball are respectively provided with a groove, and the grooves are positioned outside the oil outlet cavity when the springs are not extruded, so that the lubricating oil is thrown into the oil outlet cavity from the lubricating oil cavity along the connecting grooves in the rotating process of the wheel disc assembly, the lubricating oil can not normally come out due to the blockage of the steel balls at the top of the oil outlet cavity, when the side teeth are in contact with the chain type conveying belt, the steel balls can extrude the springs and press the springs into the oil outlet cavities under the pressure, the inside lubricating oil that can overflow of the inside back recess of oil outlet chamber of impressing at the steel ball, when not extruding the steel ball along with the continuation rotation chain conveyor of rim plate subassembly, the steel ball resumes under the extrusion of spring, make the inside lubricating oil of recess taken out, play the lubricated effect of chain conveyor and rim plate subassembly, thereby make whole sprocket can rotate the in-process automatic supplementary lubricating oil of in-process at the function, owing to only the limit tooth spills over from the oil outlet chamber that corresponds after contacting with chain conveyor when need not artifical manual coating lubricating oil, thereby can effectively avoid the waste of lubricating oil.

Drawings

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a top view of the present invention;

FIG. 3 is a front view of the present invention;

FIG. 4 is a schematic view of the two disk assembly of the present invention with increased spacing adjustment;

FIG. 5 is a schematic view of the internal structure of the first support arm according to the present invention;

FIG. 6 is a schematic view of the internal construction of the wheel disc assembly of the present invention;

FIG. 7 is an enlarged view of a detail of area A of FIG. 6 according to the present invention;

in the figure: 1. a base; 2. a support; 3. a screw; 4. a nut; 5. a first movable arm; 6. a second movable arm; 7. a first support arm; 8. a cylinder; 9. a second support arm; 10. a wheel disc assembly; 11. a first sprocket; 12. a second sprocket; 13. a telescopic rod; 14. a pneumatic rod; 15. a collar; 16. a piston; 17. an inner cavity; 18. a connecting pipe; 19. a rotating shaft; 20. a lubricating oil cavity; 21. connecting grooves; 22. a side tooth; 23. an oil inlet; 24. an oil outlet cavity; 25. a spring; 26. steel balls; 27. and (4) a groove.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, a flexible duplex sprocket comprises a base 1, a bracket 2, a first movable arm 5, a second movable arm 6 and two wheel disc assemblies 10, wherein the bracket 2 is fixed on the side wall of the base 1, a screw rod 3 is connected in a penetrating way at one end of the bracket 2 far away from the base 1, a nut 4 for locking the screw rod 3 is screwed at one end of the screw rod 3, the first movable arm 5 and the second movable arm 6 which are arranged in a V-shaped structure are mounted on the bracket 2, the top ends of the first movable arm 5 and the second movable arm 6 are both connected with a rotating shaft 19, the rotating shaft 19 at the top end of the first movable arm 5 penetrates through the first supporting arm 7 and is connected with one wheel disc assembly 10, the rotating shaft 19 at the top end of the second movable arm 6 penetrates through the second supporting arm 9 and is connected with one wheel disc assembly 10, an air cylinder 8 is arranged between the first supporting arm 7 and the second supporting arm 9, two ends of the air cylinder 8 are both connected with a pneumatic rod 14, one pneumatic rod 14 is connected into an inner cavity 17 in the first support arm 7 and connected with a piston 16, the other pneumatic rod 14 is connected into an inner cavity 17 in the second support arm 9 and connected with a piston 16, the adjacent side walls of the first support arm 7 and the second support arm 9 are respectively fixed with a lantern ring 15, the pneumatic rod 14 penetrates through the lantern ring 15, and the side wall of one end, far away from the first support arm 7 and the second support arm 9, of the first support arm 7 and the second support arm 9 is respectively connected with a connecting pipe 18;

two rim plate subassemblies 10 constitute by first sprocket 11, second sprocket 12, first sprocket 11, be connected through a telescopic link 13 between the second sprocket 12, telescopic link 13 is connected with connecting pipe 18, the lateral wall middle part that first sprocket 11, second sprocket 12 kept away from mutually all is provided with a lubricating oil chamber 20 that is the loop configuration, be provided with an oil inlet 23 that has the valve on the lubricating oil chamber 20 lateral wall, all be provided with a plurality of evenly distributed's side tooth 22 on first sprocket 11, the second sprocket 12.

An oil outlet cavity 24 is formed in the outer walls of the two sides of each side tooth 22, a spring 25 is arranged inside each oil outlet cavity 24, the top end of each spring 25 is connected with a steel ball 26 protruding from the oil outlet cavity 24, the bottom end of each spring 25 is connected with the inner wall of the bottom of the oil outlet cavity 24, a plurality of connecting grooves 21 are connected to the side wall of the lubricating oil cavity 20, one end of each connecting groove 21 extends to the inside of the side tooth 22, and one end of each connecting groove 21 extending to the inside of the side tooth 22 is connected with the oil outlet cavity 24.

The outer walls of the two sides of the middle part of the steel ball 26 are provided with a groove 27, and the groove 27 is positioned outside the oil outlet cavity 24 when the spring 25 is not extruded, so that the lubricating oil is thrown from the lubricating oil chamber 20 into the oil outlet chamber 24 along the connecting groove 21 during the rotation of the wheel disc assembly 10, the lubricating oil cannot be discharged normally because the top of the oil outlet chamber 24 is blocked by the steel balls 26 at the beginning, when the side tooth 22 contacts with the chain conveyer, the steel balls 26 are pressed to press the spring 25 and press the steel balls into the oil outlet cavity 24, after the steel balls 26 are pressed into the oil outlet cavity 24, lubricating oil overflows into the groove 27, and when the chain conveyor does not squeeze the steel balls 26 as the wheel disc assembly 10 continues to rotate, the steel balls 26 are restored by the squeezing of the springs 25, so that the lubricating oil in the groove 27 is taken out, the lubricating effect on the chain conveyor belt and the wheel disc assembly 10 is achieved, and the waste of the lubricating oil can be effectively avoided.

The first chain wheel 11 and the second chain wheel 12 are movably connected through the telescopic rod 13, after the cylinder 8 is started, the cylinder 8 can be used for driving the two pneumatic rods 14 to be shortened simultaneously, so that the piston 16 is pulled towards the direction of the cylinder 8 in the inner cavity 17 through the pneumatic rods 14, the gas in the telescopic rod 13 is pumped into the inner cavity 17 through the connecting pipe 18 in the process of the movement of the piston 16, so that the telescopic rod 13 is shortened, after the telescopic rod 13 is shortened, the distance between the first chain wheel 11 and the second chain wheel 12 is reduced, so that the distance between two chains installed between the two wheel disc assemblies 10 is reduced by shortening the width of the wheel disc assemblies 10 after the distance between the two wheel disc assemblies 10 is increased, on one hand, the width of the wheel disc assemblies 10 can be freely adjusted according to actual requirements, on the other hand, the width of the wheel disc assemblies 10 can be adjusted along with the distance while the distance between the two wheel disc assemblies 10 is adjusted, so that the stability of the chain during transmission is not affected by the adjustment of the spacing between the two disc assemblies 10.

The first movable arm 5 and the second movable arm 6 are rotatably connected through the screw rod 3, the included angle between the first movable arm 5 and the second movable arm 6 is larger, and the distance between the two wheel disc assemblies 10 is larger.

When the invention is used, firstly, the distance between two wheel disc assemblies 10 is adjusted according to the actual use requirement, after a nut 4 is unscrewed, an external power supply is utilized to start the air cylinder 8 and the first movable arm 5 and the second movable arm 6 are shifted, so that the included angle between the first movable arm 5 and the second movable arm 6 is increased, the distance between the two wheel disc assemblies 10 is increased, because the inner cavities 17 in the first support arm 7 and the second support arm 9 are arranged, the first chain wheel 11 and the second chain wheel 12 of the wheel disc assemblies 10 are connected through the telescopic rod 13, and the inner cavity 17 is connected with the telescopic rod 13 through the connecting pipe 18, after the air cylinder 8 is started, the two pneumatic rods 14 can be driven by the air cylinder 8 to be simultaneously shortened, so that the piston 16 is pulled towards the direction of the air cylinder 8 in the inner cavity 17 by the pneumatic rod 14, and the air in the telescopic rod 13 is pumped into the inner cavity 17 by the connecting pipe 18 in the moving process of the piston 16, thereby shortening the telescopic rod 13, after the telescopic rod 13 is shortened, the distance between the first chain wheel 11 and the second chain wheel 12 is reduced, thereby reducing the distance between two chains installed between the two wheel disc assemblies 10 by shortening the width of the wheel disc assemblies 10 after the distance between the two wheel disc assemblies 10 is increased, on one hand, the width of the wheel disc assemblies 10 can be freely adjusted according to actual requirements, on the other hand, the width of the wheel disc assemblies 10 can be adjusted along with the distance while adjusting the distance between the two wheel disc assemblies 10, thereby preventing the stability during chain transmission from being influenced by the distance adjustment between the two wheel disc assemblies 10, then, the nut 4 is screwed, the first movable arm 5 and the second movable arm 6 are fixed again, then, a chain type conveyor belt is installed between the two wheel disc assemblies 10, and the rotating shaft 19 connected with one wheel disc assembly 10 is connected with the output shaft of an external driving motor, in the process of driving the pulley disc assembly 10 to rotate by using an external driving motor, the two pulley disc assemblies 10 are utilized to drive the chain type conveyor belt to rotate, because the outer walls of the two sides of each side tooth 22 are respectively provided with an oil outlet cavity 24, the inside of each oil outlet cavity 24 is respectively provided with a spring 25, the top end of each spring 25 is connected with a steel ball 26 protruding from the oil outlet cavity 24, the bottom end of each spring 25 is connected with the inner wall of the bottom of the oil outlet cavity 24, the side wall of the lubricating oil cavity 20 is connected with a plurality of connecting grooves 21, one end of each connecting groove 21 extends into the side tooth 22, one end of each connecting groove 21 extending into the side tooth 22 is connected with the oil outlet cavity 24, the outer walls of the two sides of the middle part of each steel ball 26 are respectively provided with a groove 27, and the grooves 27 are positioned outside the oil outlet cavity 24 when the springs 25 are not extruded, so that the lubricating oil cavity of the pulley disc assembly 10 is thrown into the oil outlet cavity 24 along the connecting grooves 21 in the rotating process, since the top of the oil outlet chamber 24 is initially blocked by the steel balls 26 and the lubricating oil cannot be discharged normally, when the side teeth 22 contact the chain conveyor, the steel balls 26 are pressed by the pressure to press the springs 25 and press the inside of the oil outlet chamber 24, after the steel balls 26 are pressed into the oil outlet cavity 24, lubricating oil overflows into the groove 27, and when the chain conveyor does not squeeze the steel balls 26 as the wheel disc assembly 10 continues to rotate, the steel balls 26 are restored by the squeezing of the springs 25, so that the lubricating oil inside the grooves 27 is brought out, which acts as a lubrication for the chain conveyor and the wheel disc assembly 10, so that the whole chain wheel can automatically replenish lubricating oil in the rotating process in the operation process, when manual coating lubricating oil is not needed, lubricating oil can overflow from the corresponding oil outlet cavity 24 only after the side teeth 22 are contacted with the chain conveyor belt, so that the waste of the lubricating oil can be effectively avoided.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a flexible duplex sprocket, includes base (1), support (2), first digging arm (5), second digging arm (6) and two rim plate subassemblies (10), a serial communication port, be fixed with one support (2) on base (1) lateral wall, the one end that base (1) was kept away from in support (2) has worn and has connect a screw rod (3), the one end of screw rod (3) has connect a nut (4) that is used for locking screw rod (3) soon, first digging arm (5), second digging arm (6) that the installation was the setting of V-arrangement structure on support (2), the top of first digging arm (5), second digging arm (6) all is connected with a pivot (19), pivot (19) on first digging arm (5) top run through a first support arm (7) and connect a rim plate subassembly (10), pivot (19) on second digging arm (6) top run through a second support arm (9) and connect a rim plate subassembly (10), the pivot (19) on second digging arm (6) top The assembly comprises an assembly (10), wherein a cylinder (8) is arranged between a first supporting arm (7) and a second supporting arm (9), two ends of the cylinder (8) are respectively connected with a pneumatic rod (14), one pneumatic rod (14) is connected into an inner cavity (17) inside the first supporting arm (7) and connected with a piston (16), the other pneumatic rod (14) is connected into an inner cavity (17) inside the second supporting arm (9) and connected with a piston (16), adjacent side walls of the first supporting arm (7) and the second supporting arm (9) are respectively fixed with a lantern ring (15), the pneumatic rods (14) penetrate through the lantern rings (15), and the side wall of one end, far away from the first supporting arm (7) and the second supporting arm (9), of the first supporting arm and the second supporting arm (9) is respectively connected with a connecting pipe (18);

two rim plate subassembly (10) are constituteed by first sprocket (11), second sprocket (12), be connected through a telescopic link (13) between first sprocket (11), second sprocket (12), telescopic link (13) are connected with connecting pipe (18), the lateral wall middle part that first sprocket (11), second sprocket (12) kept away from mutually all is provided with one and is the lubricating oil chamber (20) of annular structure, be provided with an oil inlet (23) that have the valve on lubricating oil chamber (20) lateral wall, all be provided with a plurality of evenly distributed's side tooth (22) on first sprocket (11), second sprocket (12).

2. The flexible duplex sprocket as claimed in claim 1, wherein an oil outlet chamber (24) is formed in each of the outer walls of both sides of each side tooth (22), a spring (25) is formed in each of the oil outlet chambers (24), a steel ball (26) protruding from the oil outlet chamber (24) is connected to the top end of each spring (25), the bottom end of each spring (25) is connected to the inner wall of the bottom of the oil outlet chamber (24), a plurality of connecting grooves (21) are connected to the side wall of the lubricating oil chamber (20), one end of each connecting groove (21) extends into the side tooth (22), and one end of each connecting groove (21) extending into the side tooth (22) is connected to the oil outlet chamber (24).

3. The flexible twin sprocket as defined in claim 2, wherein a groove (27) is formed on both outer walls of the middle portion of said steel ball (26), and said groove (27) is located outside said oil outlet chamber (24) when said spring (25) is not compressed.

4. The flexible duplex sprocket of claim 3, wherein the first sprocket (11) and the second sprocket (12) are movably connected by a telescopic rod (13).

5. The flexible duplex sprocket of claim 4, wherein the first movable arm (5) and the second movable arm (6) are rotatably connected by a screw (3), and the larger the included angle between the first movable arm (5) and the second movable arm (6), the larger the distance between the two disc assemblies (10) is.