阅读说明：本技术 一种自锁式直挺链条的传动装置 (Self-locking transmission device for straight chain ) 是由 纪春传 于 2021-08-17 设计创作，主要内容包括：本发明公开了一种自锁式直挺链条的传动装置,包括直挺链条、链轮和机箱,所述机箱内设有所述链轮,所述直挺链条穿过所述机箱,所述直挺链条包括外链板和内链板,所述外链板和内链板都设有平板,所述平板上设有导柱,所述导柱一端与弹簧套连接,所述导柱外套设有弹簧,所述弹簧套与所述销轴相配合。本发明的直挺链条通过平板和平板上设置的导柱、弹簧和弹簧套实现双向防弯功能,通过链轮和导轮实现直挺链条的弯曲和传动,能够控制直挺链条的弯曲方向和弯曲角度,方弯链条可以直线传动或转向传动,结构简单,安装便捷,大大提高链条的适用范围和传动平稳性等。(The invention discloses a transmission device of a self-locking straight chain, which comprises a straight chain, a chain wheel and a case, wherein the chain wheel is arranged in the case, the straight chain penetrates through the case, 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 pillars are arranged on the flat plates, one ends of the guide pillars are connected with spring sleeves, springs are sleeved outside the guide pillars, and the spring sleeves are matched with pin shafts. The straight and straight chain realizes the bidirectional bending prevention function through the flat plate and the guide pillar, the spring and the spring sleeve arranged on the flat plate, realizes the bending and the transmission of the straight and straight chain through the chain wheel and the guide wheel, can control the bending direction and the bending angle of the straight and straight chain, can realize linear transmission or steering transmission through the square and bent chain, has simple structure and convenient installation, greatly improves the application range, the transmission stability and the like of the chain.)

1. The utility model provides a from transmission of locking-type straight very chain, its characterized in that, including straight very chain (1), sprocket (3) and quick-witted case (2), be equipped with in quick-witted case (2) sprocket (3), straight very chain (1) passes quick-witted case (2), straight very chain (1) with sprocket (3) are connected, straight very chain (1) is including outer link joint (11) and interior link joint (12), outer link joint (11) and interior 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) with the round pin axle cooperatees.

2. The transmission device of the self-locking straight chain as claimed in claim 1, wherein a plurality of guide wheels (4) are arranged in the case (2), and the guide wheels (4) are arranged along the chain.

3. The transmission device of the self-locking straight chain as claimed in claim 1, wherein the spring housing (15) is provided with a curved surface, and the curved surface is an inward concave arc.

4. The transmission device of the self-locking straight stile chain according to claim 1, characterized in that the length of the flat plate (13) is the length between the center points of the two shaft pins (5) of the outer link plate (11).

5. The transmission device of the self-locking straight stile chain according to claim 1, characterized in that the length from the end surface of the spring sleeve (15) far away from the end surface of the spring (16) to the flat plate (13) is greater than or equal to the distance from the center of the pin shaft to the flat plate (13).

6. The transmission device of the self-locking straight stile chain as claimed in claim 1, characterized in that one end of the guide post (14) is provided with a limit boss, and the spring sleeve (15) is provided with a limit groove matched with the limit boss.

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 a forward and reverse bidirectional free bending function, so that the stability of the chain is poor in the transmission operation process. The prior CN201810413148.6 discloses a dustproof and anti-bending cement scaly plate machine chain, which limits the downward movement of a chain plate by designing a chain plate boss, plays a role in limiting and effectively prevents the chain from being bent in one direction. However, this solution is not suitable for chains with high safety requirements and is costly;

CN201520021072.4 discloses an anti-bending chain, which can be bent outward but only inward by a certain angle by the structural design of providing the link plates of the adjacent links with convex arcs and concave grooves. However, this solution makes the chain heavy and does not have the function of preventing double 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 problem, an embodiment of the invention provides a transmission device for a self-locking straight chain, which comprises a straight chain, a chain wheel and a case, wherein the chain wheel is arranged in the case, the straight chain penetrates through the case, the straight chain is connected with the chain wheel, the straight chain comprises an outer chain plate and an inner chain plate, both the outer chain plate and the inner chain plate are provided with flat plates, guide pillars are arranged on the flat plates, one ends of the guide pillars are connected with spring sleeves, the guide pillars are sleeved with springs, and the spring sleeves are matched with pin shafts.

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

Further, the spring sleeve is provided with a curved surface, and the curved surface is an inwards concave arc.

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

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

Furthermore, one end of the guide pillar 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 chain realizes the bidirectional bending prevention function through the flat plate and the guide pillar, the spring and the spring sleeve arranged on the flat plate, realizes the bending and the transmission of the straight chain through the chain wheel and the guide wheel, can control the bending direction and the bending angle of the straight chain, can realize the linear transmission or the steering transmission of the square chain, has simple structure and convenient installation, greatly improves the application range, the transmission stability and the like of the chain, can be used for various devices, realizes the opening and closing of doors or windows, and realizes the linear or curved transmission of objects and the like.

Drawings

In order to more clearly illustrate the transmission device of the self-locking straight chain of the present invention, the drawings required for the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings according to the drawings without creative efforts.

FIG. 1 is a side view of a self-locking straight chain transmission device according to the present invention;

FIG. 2 is a schematic cross-sectional view of a transmission device for a self-locking straight chain according to the present invention;

FIG. 3 is a schematic structural diagram of an outer link plate;

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

The drawings are numbered as follows:

1-straightening a chain; 11-an outer link plate; 12-an inner link plate; 13-plate; 14-guide posts; 15-spring housing; 16-a spring; 2-a case; 3-a sprocket; 4-a guide wheel; 5-axle pin.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious 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 obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Example 1:

as shown in fig. 1 to 4, a transmission device of a self-locking straight chain comprises a straight chain 1, a chain wheel 3 and a case 2, wherein the chain wheel 3 is arranged in the case 2, the straight chain 1 penetrates through the 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 lifting 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 are hinged with the inner chain plates 12 through shaft pins, the outer chain plates 11 and the inner chain plates 12 are both provided with flat plates 13, 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 structure is simple and firmer; 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, be equipped with a plurality of leading wheels 4 in the quick-witted case 2, leading wheel 4 sets up along the chain, leading wheel 4 has the effect to the spacing direction of chain, the chain passes through sprocket 3, sprocket 3 pushes down spring housing 15, and spring 16 compresses, and spring housing 15 slides to dull and stereotyped 13 along guide pillar 14 backward, and the chain is crooked to sprocket 3 direction, sprocket 3 drives the chain steering drive, when sprocket 3 pivoted tooth trace keeps away from spring housing 15, spring housing 15 restores the normal position under the spring action of spring 16, and straight chain 1 continues the linear drive.

Furthermore, the spring sleeve 15 is provided with a curved surface, the curved surface is an inward 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 center points of the two pins of the outer link plate 11, the length of the flat plate 13 is the length between the center points of the two pins 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, so as to prevent the straight lifter chain 1 from bending to one side of the flat plate 13.

Specifically, the length from the end face of the end 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 center of the pin shaft to the flat plate 13, and when the length from the end face of the end 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 center of the pin shaft 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 is bent.

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

Furthermore, 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 and prevent the spring sleeve 15 from being separated from the guide post 14.

The foregoing description has disclosed fully preferred embodiments of the present invention. It should be noted that those skilled in the art can make modifications to the embodiments of the present invention without departing from the scope of the appended claims. Accordingly, the scope of the appended claims is not to be limited to the specific embodiments described above.