阅读说明：本技术 一种安全联轴器 (Safety coupling ) 是由 承平 于 2019-11-30 设计创作，主要内容包括：本发明公开了一种安全联轴器,包括两个半联轴器,所述半联轴器为套筒状结构,均包括鼓形齿连轴部、法兰和保险块；其中,所述鼓形齿连轴部的外表面设有鼓形齿,所述半联轴器的内壁设有内齿槽,所述鼓形齿与所述内齿槽可匹配；所述法兰设置于所述半联轴器的外侧壁上,两个半联轴器通过所述法兰相连接；所述保险块设置于所述半联轴器的端部。本发明的安全联轴器能让操作人员完成正常作业循环后停机检修,确保不会因联轴器失效发生坠包事故,这样可以大大缩短点检停机时间,延长联轴器的使用寿命。(The invention discloses a safety coupling which comprises two half couplings, wherein each half coupling is of a sleeve-shaped structure and comprises a crowned tooth connecting shaft part, a flange and a safety block; the outer surface of the crowned tooth connecting shaft part is provided with crowned teeth, the inner wall of the half coupling is provided with an inner tooth groove, and the crowned teeth and the inner tooth groove can be matched; the flange is arranged on the outer side wall of the half coupling, and the two half couplings are connected through the flange; the safety block is arranged at the end part of the half coupling. The safety coupling can enable an operator to stop and overhaul after completing normal operation circulation, and ensures that bag falling accidents caused by failure of the coupling can not occur, so that the point inspection downtime can be greatly shortened, and the service life of the coupling is prolonged.)

1. A safety coupling is characterized by comprising two half couplings, wherein each half coupling is of a sleeve-shaped structure and comprises a crowned tooth connecting shaft part, a flange and a safety block; the outer surface of the crowned tooth connecting shaft part is provided with crowned teeth, the inner wall of the half coupling is provided with an inner tooth groove, and the crowned teeth and the inner tooth groove can be matched; the flange is arranged on the outer side wall of the half coupling, and the two half couplings are connected through the flange; the safety block is arranged at the end part of the half coupling.

2. The safety coupling according to claim 1, wherein a clearance of 10-50 mm is reserved when the safety block is installed.

3. A safety coupling according to claim 1, characterized in that the coupling halves further comprise a safety pin, which is arranged at the outer edge of the crowned tooth shaft part, and the two coupling halves are fixed by a secondary connection of the safety pin.

4. A safety coupling according to claim 1, wherein the coupling halves have an outer diameter of 300-315 mm and an inner diameter of 150-165 mm.

Technical Field

The invention belongs to the field of special equipment in the metallurgical industry, relates to a casting crane, and particularly relates to a safety coupling.

Background

The casting crane for hoisting high-temperature liquid metal for the steel plant of the metallurgical enterprise is main production equipment, a high-speed shaft and a low-speed shaft tooth-shaped coupler are used for transmitting torque in a transmission link, and in actual use, the falling ladle accidents are frequently caused by tooth breakage or abrasion overrun due to installation precision, lubrication, manufacturing quality and other reasons in the industry.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the safety coupling, which can enable an operator to stop and overhaul after completing normal operation cycle, ensure that the falling accident caused by the failure of the coupling can not occur, greatly shorten the point inspection shutdown time and prolong the service life of the coupling.

The invention is realized by the following technical scheme:

a safety coupling comprises two half couplings, wherein each half coupling is of a sleeve-shaped structure and comprises a crowned tooth connecting shaft part, a flange and a safety block; the outer surface of the crowned tooth connecting shaft part is provided with crowned teeth, the inner wall of the half coupling is provided with an inner tooth groove, and the crowned teeth and the inner tooth groove can be matched; the flange is arranged on the outer side wall of the half coupling, and the two half couplings are connected through the flange; the safety block is arranged at the end part of the half coupling.

Further, 10-50 mm of clearance is reserved in the safety block during installation.

Furthermore, the half couplings further comprise a safety pin shaft, the safety pin shaft is arranged on the outer edge of the crowned tooth connecting shaft part, and the two half couplings are fixed through secondary connection of the safety pin shaft.

Furthermore, the outer diameter of the half coupling is 300-315 mm, and the inner diameter of the half coupling is 150-165 mm.

The invention has the following beneficial effects:

according to the safety coupling, the safety block is additionally arranged at the end part of the coupling, the safety block does not work during normal transmission, when tooth transmission fails, the safety block firstly collides to generate abnormal sound, and meanwhile, tooth transmission torque is replaced, so that an operator can complete normal operation circulation and then stop and overhaul, a bag falling accident caused by the failure of the coupling is avoided, the point inspection shutdown time can be greatly shortened, and the service life of the coupling is prolonged.

Drawings

Fig. 1 is a schematic structural view of a safety coupling.

In the figure: 1. a half coupling; 2. the crowned teeth are connected with the shaft part; 3. a flange; 4. a safety block; 5. and (7) a safety pin shaft.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and examples.