CN113864402B

CN113864402B - Transmission device of self-locking type straight chain

Info

Publication number: CN113864402B
Application number: CN202110944669.6A
Authority: CN
Inventors: 纪春传
Original assignee: JIANGSU GUANGHUA TECHNOLOGY DEVELOPMENT CO LTD
Current assignee: JIANGSU GUANGHUA TECHNOLOGY DEVELOPMENT CO LTD
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2023-05-12
Anticipated expiration: 2041-08-17
Also published as: CN113864402A

Abstract

The invention discloses a transmission device of a self-locking type straight chain, which comprises a straight chain, a chain wheel and a chassis, wherein the chain wheel is arranged in the chassis, the straight chain penetrates through the chassis, the straight chain comprises an outer chain plate and an inner chain plate, the outer chain plate and the inner chain plate are both provided with flat plates, guide posts are arranged on the flat plates, one ends of the guide posts are connected with spring sleeves, springs are sleeved outside the guide posts, and the spring sleeves are matched with pin shafts. The straight chain realizes a bidirectional bending prevention function through the flat plate and the guide post, the spring and the spring sleeve arranged on the flat plate, and realizes bending and transmission of the straight chain through the chain wheel and the guide wheel, so that the bending direction and the bending angle of the straight chain can be controlled, the square bending chain can be in linear transmission or steering transmission, the structure is simple, the installation is convenient, the application range and the transmission stability of the chain are greatly improved, and the like.

Description

Transmission device of self-locking type straight chain

Technical Field

The invention relates to the technical field of chains, in particular to a transmission device of a self-locking straight chain.

Background

At present, the existing chain has forward and reverse bidirectional free bending functions, so that the stability of the chain is poor in the transmission operation process. The prior CN201810413148.6 discloses a dustproof and bending-proof cement apron machine chain, which limits the descending of a chain plate by designing a chain plate boss, plays a limiting role and effectively prevents unidirectional bending of the chain. But this solution is not suitable for chains with high safety requirements and is costly;

CN201520021072.4 discloses a bending-proof chain, which is realized by the structural design that the chain plates of adjacent chain links are provided with convex arcs and grooves, so that the chain can be bent outwards but can only be bent inwards by a certain angle. However, this solution makes the chain heavy and does not have the function of preventing bi-directional bending. Therefore, in order to solve the technical problems, a novel chain and a transmission device with a bidirectional bending prevention function are invented.

Disclosure of Invention

In order to solve the technical problems, the embodiment of the invention provides a transmission device of a self-locking straight chain, which comprises a straight chain, a chain wheel and a machine case, wherein the chain wheel is arranged in the machine case, the straight chain penetrates through the machine case, the straight chain is connected with the chain wheel, the straight chain comprises an outer chain plate and an inner chain plate, the outer chain plate and the inner chain plate are both provided with flat plates, guide posts are arranged on the flat plates, one ends of the guide posts are connected with spring sleeves, springs are sleeved outside the guide posts, and the spring sleeves are matched with pin shafts.

Further, a plurality of guide wheels are arranged in the case, and the guide wheels are arranged along the chain.

Further, the spring is sleeved with a curved surface, and the curved surface is a concave circular arc.

Further, the flat plate length is the length between the two shaft pin center points of the outer link plate.

Further, the length from the end face of one end of the spring sleeve far away from the spring to the flat plate is greater than or equal to the distance from the center of the pin shaft to the flat plate.

Further, one end of the guide post is provided with a limiting boss, and the spring sleeve is provided with a limiting groove matched with the limiting boss.

The embodiment of the invention has the following beneficial effects: the straight-bar chain realizes a bidirectional bending prevention function through the guide posts, the springs and the spring sleeves which are arranged on the flat plate and the flat plate, realizes bending and transmission of the straight-bar chain through the chain wheels and the guide wheels, can control the bending direction and the bending angle of the straight-bar chain, can realize linear transmission or steering transmission of the square-bar chain, has a simple structure, is convenient and fast to install, greatly improves the application range and transmission stability of the chain, and the like, can be used for various devices, and realizes opening and closing of doors or windows, linear or curved transmission of objects, and the like.

Drawings

In order to more clearly illustrate the transmission of a self-locking stiffening chain according to the invention, the drawings required for the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a side view of a self-locking stiffener chain drive assembly according to the present disclosure;

FIG. 2 is a schematic cross-sectional view of a self-locking stiffener chain transmission according to the present disclosure;

FIG. 3 is a schematic view of an outer link plate structure;

fig. 4 is a schematic view of the structure of the straight chain.

The figures are marked as follows:

1-a straight chain; 11-an outer link plate; 12-inner link plates; 13-plate; 14-guide posts; 15-spring sleeve; 16-a spring; 2-a case; 3-sprocket; 4-guiding wheels; 5-axle pin.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1:

as shown in fig. 1 to 4, a transmission device of a self-locking type straight chain comprises a straight chain 1, a chain wheel 3 and a machine case 2, wherein the chain wheel 3 is arranged in the machine case 2, the straight chain 1 penetrates through the machine case 2, the straight chain 1 is connected with the chain wheel 3, the straight chain 1 comprises an outer chain plate 11 and an inner chain plate 12, the outer chain plate 11 and the inner chain plate 12 are both provided with a flat plate 13, a guide pillar 14 is arranged on the flat plate 13, one end of the guide pillar 14 is connected with a spring sleeve 15, a spring 16 is sleeved outside the guide pillar 14, and the spring sleeve 15 is matched with a pin shaft.

Specifically, the straight chain 1 comprises a plurality of outer chain plates 11 and a plurality of inner chain plates 12 which are in cross connection, the outer chain plates 11 and the inner chain plates 12 are hinged through shaft pins, flat plates 13 are arranged on the outer chain plates 11 and the inner chain plates 12, the two outer chain plates 11 and the flat plates 13 are integrally formed, and the two inner chain plates 12 and the flat plates 13 are integrally formed, so that the straight chain is simple in structure and stronger; the guide post 14 is arranged on one side of the pin shaft, the spring sleeve 15 is arranged on the outer side of the guide post 14, one end of the spring sleeve 15 is in contact with the spring 16, and the spring sleeve 15 is sleeved on one end of the guide post 14.

Specifically, a plurality of guide wheels 4 are arranged in the chassis 2, the guide wheels 4 are arranged along a chain, the guide wheels 4 have the function of limiting and guiding the chain, the chain passes through the chain wheel 3, the chain wheel 3 presses the spring sleeve 15, the spring 16 compresses, the spring sleeve 15 slides reversely along the guide post 14 towards the flat plate 13, the chain bends towards the chain wheel 3, the chain wheel 3 drives the chain to rotate, when the tooth trace of the chain wheel 3 rotates away from the spring sleeve 15, the spring sleeve 15 returns to the original position under the action of the elasticity of the spring 16, and the straight chain 1 continues to linearly drive.

Further, the spring housing 15 is provided with a curved surface, the curved surface is a concave arc, and the curved surface is matched with the pin shaft to prevent the straight chain 1 from bending to one side.

Specifically, the length of the flat plate 13 is the length between the two pin center points of the outer link plate 11, the length of the flat plate 13 is the length between the two pin center points of the inner link plate 12, and when the outer link plate 11 and the inner link plate 12 are in the same straight line, the flat plate 13 of the outer link plate 11 contacts with the flat plate 13 of the inner link plate 12 to prevent the straight chain 1 from bending to one side of the flat plate 13.

Specifically, when the distance from the end surface of the spring sleeve 15, which is far away from the spring 16, to the flat plate 13 is greater than or equal to the distance from the pin shaft center to the flat plate 13, and when the distance from the end surface of the spring sleeve 15, which is far away from the spring 16, to the flat plate 13 is equal to the distance from the pin shaft center to the flat plate 13, the spring sleeve 15 just abuts against the pin shaft, so that the pin shaft is prevented from rotating, and the straight chain 1 bends.

Specifically, the length from the end surface of the spring sleeve 15 near the spring 16 to the end surface far from the spring 16 is less than or equal to the length from the pin center to the flat plate 13, so that the spring sleeve 15 is prevented from being too long, and when the chain wheel 3 is close to the spring sleeve 15, the spring 16 cannot be well compressed when the spring 16 is compressed, so that the straight chain 1 is bent towards the chain wheel 3.

Further, a limiting boss is arranged at one end of the guide post 14, and a limiting groove matched with the limiting boss is arranged on the spring sleeve 15 to limit the spring sleeve 15, so that the spring sleeve 15 is prevented from being separated from the guide post 14.

The foregoing description has fully disclosed specific embodiments of this invention. It should be noted that any modifications to the specific embodiments of the invention may be made by those skilled in the art without departing from the scope of the invention as defined in the appended claims. Accordingly, the scope of the claims of the present invention is not limited to the foregoing detailed description.

Claims

1. The utility model provides a transmission of straight chain of auto-lock, its characterized in that, including straight chain (1), sprocket (3) and quick-witted case (2), be equipped with in machine case (2) sprocket (3), straight chain (1) are passed machine case (2), straight chain (1) with sprocket (3) are connected, straight chain (1) include outer link joint (11) and inner link joint (12), outer link joint (11) and inner link joint (12) are articulated through the pivot, outer link joint (11) and inner link joint (12) all are equipped with dull and stereotyped (13), be equipped with guide pillar (14) on dull and stereotyped (13), guide pillar (14) one end is connected with spring housing (15), guide pillar (14) overcoat is equipped with spring (16), spring housing (15) cooperate with the pivot, be equipped with a plurality of leading wheels (4) in machine case (2), leading wheel (4) are along the chain setting, dull and stereotyped (13) length is that length between two pivot (5) of outer link joint (11) are equal to length between flat board (13) center pin (16) is kept away from to flat board (13) one end face distance.

2. The transmission device of a self-locking stiffening chain according to claim 1, characterized in that the spring housing (15) is provided with a curved surface, which is a concave circular arc.

3. The transmission device of the self-locking type straight chain according to claim 1, wherein one end of the guide post (14) is provided with a limiting boss, and the spring sleeve (15) is provided with a limiting groove matched with the limiting boss.