CN211820571U

CN211820571U - Novel roller chain

Info

Publication number: CN211820571U
Application number: CN202020311551.0U
Authority: CN
Inventors: 徐涛
Original assignee: Anhui Saiwei Conveyor Equipment Co ltd
Current assignee: Anhui Saiwei Conveyor Equipment Co ltd
Priority date: 2020-03-13
Filing date: 2020-03-13
Publication date: 2020-10-30
Anticipated expiration: 2030-03-13

Abstract

The utility model provides a novel roller chain, which comprises a plurality of chain units, wherein each chain unit comprises a pin shaft, a sleeve, a roller, two inner chain plates and two outer chain plates; the two ends of the sleeve are provided with inner circle step surfaces, the two ends of the pin shaft are provided with outer circle step surfaces, and the two ends of the pin shaft are provided with an O-shaped sealing ring, a T-shaped sliding sleeve, a first spring, a U-shaped sliding sleeve and a limiting nut from inside to outside; the outer wall of the middle of the pin shaft is evenly provided with a plurality of grooves along the circumferential direction, the two ends of the pin shaft are provided with oil inlet holes along the axial direction, connecting holes are formed between the two ends of each groove and the two oil inlet holes, oil absorption sponge is filled in each groove, and the two ends of the pin shaft are provided with plugs used for blocking the oil inlet holes. The utility model discloses a chain unit of roller chain simple structure, lubricity is good between sleeve and the round pin axle, and O type sealing washer's sealing performance is good, and O type sealing washer can reduce the lubricating oil seepage, enables lubricated effect lasting, can effectively reduce the wearing and tearing between round pin axle and the sleeve, improves roller chain life-span.

Description

Novel roller chain

Technical Field

The utility model belongs to the technical field of the conveyor chain, concretely relates to novel roller chain.

Background

The roller chain is a chain for transmitting mechanical power, and mainly comprises chain plates, rollers, sleeves, pin shafts and the like. The round pin axle of traditional roller chain is cylinder type structure, and it passes the sleeve and both ends rotate with the link joint about and is connected, and in the use, the round pin axle all can take place the friction with sleeve, link joint.

In the chain transmission process, the sleeve and the pin shaft which are coaxially sleeved rotate relatively to generate severe friction, so that lubricating oil is added to the connecting part of the sleeve and the pin shaft when a common chain is used, excessive abrasion between components is prevented, and the chain is smoother to operate.

However, since the outer wall surface of the existing pin shaft is a smooth and flat surface, when the lubricating oil is added to the joint of the chain, the lubricating oil is easy to run off and overflow, the lubricating effect is not easy to last, the chain member is often worn quickly and the service life of the chain is shortened, and even if a sealing ring is arranged between the pin shaft and the sleeve, the sealing effect is poor after the sealing ring is worn or used for a long time.

SUMMERY OF THE UTILITY MODEL

There is the problem that component rapid wear and tear and chain life shorten to current roller chain, the utility model provides a novel roller chain.

The utility model discloses a following technical scheme realizes:

a novel roller chain comprises a plurality of chain units, wherein each chain unit comprises a pin shaft, a sleeve, a roller, two inner chain plates and two outer chain plates, the sleeve is sleeved on the pin shaft, the roller is sleeved on the sleeve, the two inner chain plates are arranged oppositely and sleeved at two ends of the sleeve, the sleeve can freely rotate around the pin shaft during work, and the roller is sleeved on the sleeve to reduce the abrasion between a chain and a chain wheel;

inner circle step surfaces are arranged at two ends of the sleeve, outer circle step surfaces are arranged at two ends of the pin shaft, and the inner circle step surfaces are correspondingly flush with the outer circle step surfaces; the two ends of the pin shaft are respectively provided with an O-shaped sealing ring, a T-shaped sliding sleeve, a first spring, a U-shaped sliding sleeve and a limiting nut from inside to outside, it should be noted that, from inside to outside, the two ends of the O-shaped sealing ring respectively abut against the step surface of the excircle of the pin shaft and the big end of the T-shaped sliding sleeve from the middle part to the two end parts of the pin shaft, specifically, an O-shaped sealing ring which is abutted against the excircle step surface is also abutted against the inner circle step surface of the sleeve, the O-shaped sealing ring is used for sealing the gap between the pin shaft and the sleeve, two outer chain plates are arranged oppositely and are respectively sleeved on the two T-shaped sliding sleeves, the butt ends of the T-shaped sliding sleeves extend into the U-shaped sliding sleeves, two ends of the first spring respectively abut against the butt end of the T-shaped sliding sleeve and the inner wall surface of the U-shaped sliding sleeve, the limiting nut is in threaded connection with the pin shaft and is used for limiting the position of the U-shaped sliding sleeve, and two ends of the outer chain plate respectively abut against the inner chain plate and the U-shaped sliding sleeve;

a plurality of grooves are uniformly distributed on the outer wall of the middle part of the pin shaft along the circumferential direction, and the grooves are arranged between two excircle step surfaces on the pin shaft; oil inlet holes are formed in the two ends of the pin shaft along the axial direction, the oil inlet holes and the pin shaft are coaxially arranged, and connecting holes are formed in the two ends of each groove in the pin shaft and correspond to the two oil inlet holes; each groove is filled with oil absorption sponge, two ends of each pin shaft are provided with plugs used for blocking oil inlet holes, specifically, each plug is a slotted stud, each oil inlet hole is provided with an internal thread, and each plug is in threaded connection with the pin shaft.

Further inject, the recess is the heliciform, compares with setting up many rectangular shape recesses at the middle part outer wall of round pin axle along the circumferencial direction, and the heliciform recess can improve the intensity of round pin axle relatively, and the lubricity when can increase relative rotation between sleeve and the round pin axle reduces wearing and tearing.

Further inject, the oil absorption sponge bonds and fixes in the heliciform recess, can avoid the oil absorption sponge to drop.

And further limiting, both ends of the pin shaft are provided with oil filling holes along the radial direction, the oil filling holes are communicated with the oil inlet holes, specifically, the axes of the oil filling holes are vertical to the axes of the oil inlet holes, the oil filling holes are provided with plugging switches, and lubricating oil can be added into the oil inlet holes through the oil filling holes by opening the plugging switches.

Further inject, the shutoff switch includes cock stem, plunger, second spring and spacing gasket, and spacing gasket and second spring housing are established on the cock stem, and spacing gasket and second spring all are located the oil feed hole, and spacing gasket and cock stem threaded connection, the both ends of spring offset with the pore wall of spacing gasket and oil feed hole respectively, and plunger fixed mounting keeps away from spacing gasket one end on the cock stem, and the plunger is used for the shutoff tank filler hole.

Further inject, the tank filler sleeve is hourglass hopper-shaped, and the one end of plunger is frustum shape, and the fixed sealing rubber layer that is equipped with of plunger outer wall, specifically, plunger and gag lever post threaded connection or welded fastening, under the effect of second spring, the frustum shape one end of plunger blocks up hourglass hopper-shaped tank filler sleeve, can prevent that roller chain operation in-process lubricating oil from leaking, through outwards pulling the plunger, can through filling lubricating oil in the tank filler sleeve of filler sleeve, loosen the plunger, under the second spring action, the plunger can automatic shutoff tank filler sleeve.

Further, the plunger is provided with a pull ring, so that the plunger rod can be pulled conveniently.

According to the above technical scheme, the utility model provides a pair of novel roller chain, beneficial effect lies in: under the action of the first spring, the large head end of the T-shaped sliding sleeve extrudes the O-shaped sealing ring, so that the contact surfaces of the O-shaped sealing ring and the outer circle step surface and the inner circle step surface, and the contact surfaces of the O-shaped sealing ring and the outer wall of the pin shaft and the inner wall of the sleeve can be tightly sealed, the two O-shaped sealing rings can seal the gap between the pin shaft and the sleeve at two ends of the groove, the leakage consumption of lubricating oil can be reduced, even if the O-shaped sealing rings are worn, the tightness of a sealing interface can be ensured under the action of the first spring, and the leakage consumption of the lubricating; the oil absorption sponge can absorb and lock oil, reduce the leakage consumption of lubricating oil and improve the lubricating performance between the sleeve and the pin shaft; the oil inlet hole can store lubricating oil, and the lubricating oil is conveyed to the corresponding groove through the connecting hole, so that the lubricating property between the sleeve and the pin shaft is ensured. The chain unit of the roller chain is simple in structure, good in lubricating property between the sleeve and the pin shaft, good in sealing performance of the O-shaped sealing ring, capable of reducing leakage of lubricating oil, lasting in lubricating effect, capable of effectively reducing abrasion between the pin shaft and the sleeve and prolonging service life of the roller chain.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a cross-sectional view of the present invention.

Fig. 3 is a partial sectional view taken along the line a-a in fig. 1.

Fig. 4 is a partial structural diagram of fig. 3 at I.

Fig. 5 is a schematic view of a partial structure at II in fig. 4.

In the drawings: 1-pin shaft, 11-groove, 12-oil inlet, 13-connecting hole, 14-oil inlet, 2-sleeve, 3-roller, 4-inner chain plate, 5-outer chain plate, 61-O type sealing ring, 62-T type sliding sleeve, 63-first spring, 64-U type sliding sleeve, 65-limit nut, 7-oil absorption sponge, 8-plug, 9-blocking switch, 91-plug rod, 92-plunger, 93-second spring, 94-limit gasket, 95-sealing rubber layer and 96-pull ring.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1 to 5, a novel roller chain comprises a plurality of chain units, each chain unit comprises a pin shaft 1, a sleeve 2, a roller 3, two inner chain plates 4 and two outer chain plates 5, the sleeve 2 is sleeved on the pin shaft 1, the roller 3 is sleeved on the sleeve 2, the two inner chain plates 4 are arranged oppositely and sleeved at two ends of the sleeve 2, the sleeve 2 can freely rotate around the pin shaft 1 during operation, and the roller 3 is sleeved on the sleeve 2 to reduce the abrasion between a chain and a chain wheel;

the two ends of the sleeve 2 are respectively provided with an inner circular step surface, the two ends of the pin shaft 1 are respectively provided with an outer circular step surface, and the inner circular step surfaces are correspondingly leveled with the outer circular step surfaces; an O-shaped sealing ring 61, a T-shaped sliding sleeve 62, a first spring 63, a U-shaped sliding sleeve 64 and a limiting nut 65 are arranged at two ends of the pin shaft 1 from inside to outside, wherein the two ends of the O-shaped sealing ring 61 respectively abut against an excircle step surface of the pin shaft 1 and a big end of the T-shaped sliding sleeve 62 from the middle part of the pin shaft 1 to the two ends from inside to outside, specifically, the O-shaped sealing ring 61 abutting against the excircle step surface also abuts against an inner circle step surface of the sleeve 2, the O-shaped sealing ring 61 is used for sealing a gap between the pin shaft 1 and the sleeve 2, two outer chain plates 5 are oppositely arranged and respectively sleeved on the two T-shaped sliding sleeves 62, a butt end of the T-shaped sliding sleeve 62 extends into the U-shaped sliding sleeve 64, two ends of the first spring 63 respectively abut against a butt end of the T-shaped sliding sleeve 62 and an inner wall surface of the U-shaped sliding sleeve 64, the limiting nut 65 is in threaded connection with the pin shaft 1 and the limiting nut 65 is used for, two ends of the outer chain plate 5 are respectively abutted against the inner chain plate 4 and the U-shaped sliding sleeve 64;

a plurality of spiral grooves 11 are uniformly distributed on the outer wall of the middle part of the pin shaft 1 along the circumferential direction, and the spiral grooves 11 are arranged between two excircle step surfaces on the pin shaft 1; oil inlet holes 12 are formed in both ends of the pin shaft 1 along the axial direction, the oil inlet holes 12 are coaxially arranged with the pin shaft 1, and connecting holes 13 are formed in the two ends of each groove 11 in the pin shaft 1, corresponding to the space between the two oil inlet holes 12; every all fill in the recess 11 and be equipped with oil absorption sponge 7, oil absorption sponge 7 bonds and fixes in spiral helicine recess 11, can avoid oil absorption sponge 7 to drop, the both ends of round pin axle 1 all are equipped with end cap 8 that is used for blockking up inlet port 12, specifically, end cap 8 is the fluting double-screw bolt, inlet port 12 is equipped with the internal thread, end cap 8 and round pin axle 1 threaded connection.

In this embodiment, both ends of the pin shaft 1 are provided with an oil filling hole 14 along a radial direction, the oil filling hole 14 is communicated with the oil inlet 12, specifically, an axis of the oil filling hole 14 is perpendicular to an axis of the oil inlet 12, the oil filling hole 14 is provided with a plugging switch 9, and when the plugging switch 9 is opened, lubricating oil can be added into the oil inlet 12 through the oil filling hole 14.

In this embodiment, the plugging switch 9 includes a plug rod 91, a plunger 92, a second spring 93 and a limiting gasket 94, the limiting gasket 94 and the second spring 93 are sleeved on the plug rod 91, the limiting gasket 94 and the second spring 93 are both located in the oil inlet 12, the limiting gasket 94 is in threaded connection with the plug rod 91, two ends of the spring respectively abut against the hole walls of the limiting gasket 94 and the oil inlet 12, the plunger 92 is fixedly mounted on the plug rod 91 and far away from one end of the limiting gasket 94, and the plunger 92 is used for plugging the oil inlet 14.

In this embodiment, the oil filling hole 14 is funnel-shaped, one end of the plunger 92 is frustum-shaped, and a sealing rubber layer 95 is fixedly arranged on the outer wall of the plunger 92, specifically, the plunger 92 and the plug rod 91 are in threaded connection or welded fixation, under the action of the second spring 93, one end of the plunger 92 in the frustum-shaped blocks the funnel-shaped oil filling hole 14, so that leakage of lubricating oil in the running process of the roller chain can be prevented, lubricating oil can be filled into the oil inlet hole 12 through the oil filling hole 14 by pulling the plunger 92 outwards, the plunger 92 is released, and under the action of the second spring 93, the oil filling hole 14 can be automatically blocked by the plunger 92.

In this embodiment, the plunger 92 is provided with a pull ring 96 for pulling the plug rod 91.

The working principle of the embodiment is as follows: when the roller chain is assembled, the outer chain plate 5 of the roller chain is sleeved on the T-shaped sliding sleeve 62, the limiting nut 65 is installed, the butt end of the T-shaped sliding sleeve 62 extends into the U-shaped sliding sleeve 64, two ends of the first spring 63 respectively abut against the butt end of the T-shaped sliding sleeve 62 and the inner wall surface of the U-shaped sliding sleeve 64, two ends of the outer chain plate 5 respectively abut against the inner chain plate 4 and the U-shaped sliding sleeve 64, and two ends of the O-shaped sealing ring 61 respectively abut against the outer circle step surface of the pin shaft 1 and the big end of the T-shaped sliding sleeve 62; lubricating oil can be added to the oil inlet 12 through the oil filling hole 14, specifically, the plunger 92 is pulled outwards, the limiting gasket 94 compresses the second spring 93, the open end of the oil filling hole 14 is opened, the lubricating oil is filled into the oil filling hole 14, the lubricating oil enters the oil inlet 12 from the gap between the oil filling hole 14 and the plug rod 91, the plunger 92 is released, the plunger 92 can automatically block the oil filling hole 14 under the action of the second spring 93, the oil inlet 12 can store the lubricating oil, and the lubricating oil is conveyed to the corresponding spiral groove 11 through the connecting hole 13; under the action of the first spring 63, the large end of the T-shaped sliding sleeve 62 extrudes the O-shaped sealing ring 61, so that the contact surfaces of the O-shaped sealing ring 61 and the outer circle step surface and the inner circle step surface, and the contact surfaces of the O-shaped sealing ring 61 and the outer wall of the pin shaft 1 and the inner wall of the sleeve 2 can be tightly sealed, the two O-shaped sealing rings 61 can seal the gap between the pin shaft 1 and the sleeve 2 at the two ends of the groove 11, the leakage consumption of lubricating oil can be reduced, even if the O-shaped sealing rings 61 are worn, under the action of the first spring 63, the T-shaped sliding sleeve 62 moves towards the outer circle step surface to further extrude the O-shaped sealing ring 61, the tightness of a sealing interface can be ensured; compared with the mode that a plurality of strip-shaped grooves 11 are formed in the outer wall of the middle of the pin shaft 1 along the circumferential direction, the spiral grooves 11 can relatively improve the strength of the pin shaft 1, increase the lubricating performance when the sleeve 2 and the pin shaft 1 rotate relatively, and reduce abrasion; the oil absorption sponge 7 can absorb and lock oil, reduce the leakage consumption of lubricating oil and improve the lubricating performance between the sleeve 2 and the pin shaft 1. The chain unit of the roller chain is simple in structure, the sleeve 2 and the pin shaft 1 are good in lubricating property, the O-shaped sealing ring 61 is good in sealing performance, the O-shaped sealing ring 61 can reduce leakage of lubricating oil, the lubricating effect is lasting, abrasion between the pin shaft 1 and the sleeve 2 can be effectively reduced, and the service life of the roller chain is prolonged.

In the specification of the present invention, a large number of specific details are explained. It is understood, however, that the practice of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. The utility model provides a novel roller chain, includes a plurality of chain units, every the chain unit all includes round pin axle (1), sleeve (2), roller (3), two interior link joint (4) and two outer link joint (5), and sleeve (2) cover is established on round pin axle (1), and roller (3) cover is established on sleeve (2), and two interior link joint (4) are just establishing the both ends at sleeve (2) to setting up and establishing, its characterized in that: inner circle step surfaces are arranged at two ends of the sleeve (2), outer circle step surfaces are arranged at two ends of the pin shaft (1), and the inner circle step surfaces are correspondingly leveled with the outer circle step surfaces;

two ends of the pin shaft (1) are respectively provided with an O-shaped sealing ring (61), a T-shaped sliding sleeve (62), a first spring (63), a U-shaped sliding sleeve (64) and a limiting nut (65) from inside to outside, two ends of the O-shaped sealing ring (61) are respectively abutted against the excircle step surface of the pin shaft (1) and the big end of the T-shaped sliding sleeve (62), two outer chain plates (5) are arranged oppositely and are respectively sleeved on the two T-shaped sliding sleeves (62), the flat end of the T-shaped sliding sleeve (62) extends into the U-shaped sliding sleeve (64), two ends of the first spring (63) respectively abut against the butt end of the T-shaped sliding sleeve (62) and the inner wall surface of the U-shaped sliding sleeve (64), the limiting nut (65) is in threaded connection with the pin shaft (1) and is used for limiting the position of the U-shaped sliding sleeve (64), and two ends of the outer chain plate (5) respectively abut against the inner chain plate (4) and the U-shaped sliding sleeve (64);

the utility model discloses a round pin axle, including round pin axle (1), the middle part outer wall of round pin axle (1) is equipped with many recesses (11) along the circumferencial direction equipartition, and recess (11) between two excircle step faces on round pin axle (1), inlet port (12) have all been seted up along the axial at the both ends of round pin axle (1), and inlet port (12) and round pin axle (1) coaxial setting, connecting hole (13) have been seted up between two inlet port (12) corresponding to the both ends of every recess (11) on round pin axle (1), every all fill in recess (11) and be equipped with oil absorption sponge (7), the both ends of round pin axle (1) all are equipped with end cap (8) that are used for block.

2. The new roller chain of claim 1, characterized in that: the groove (11) is spiral.

3. The new roller chain of claim 2, wherein: the oil absorption sponge (7) is fixedly bonded in the spiral groove (11).

4. The novel roller chain according to any one of claims 1 to 3, characterized in that: both ends of the pin shaft (1) are provided with oil filling holes (14) along the radial direction, the oil filling holes (14) are communicated with the oil inlet hole (12), and the oil filling holes (14) are provided with plugging switches (9).

5. The new roller chain of claim 4, wherein: plugging switch (9) are established on cock stem (91) including cock stem (91), plunger (92), second spring (93) and spacing gasket (94), and spacing gasket (94) and second spring (93) cover, and all are located inlet port (12) spacing gasket (94) and second spring (93), spacing gasket (94) and cock stem (91) threaded connection, the both ends of spring offset with the pore wall of spacing gasket (94) and inlet port (12) respectively, plunger (92) fixed mounting keeps away from spacing gasket (94) one end on cock stem (91).

6. The new roller chain of claim 5, wherein: the oil filling hole (14) is funnel-shaped, one end of the plunger (92) is frustum-shaped, and a sealing rubber layer (95) is fixedly arranged on the outer wall of the plunger (92).

7. The new roller chain of claim 6, wherein: and a pull ring (96) is arranged on the plunger (92).