CN217519650U - Chain breakage protection device for roller chain coupling - Google Patents

Abstract

The utility model discloses a roller chain coupling chain breakage protection device, which comprises a roller chain coupling, wherein both ends of the roller chain coupling are respectively connected with a transmission shaft and a motor shaft, the flanges at the two sides of the roller chain coupling are respectively provided with a pair of coupling protecting covers, the two coupling protecting covers which are distributed up and down at the same side are connected through a fastening bolt, the coupling protecting covers at the two sides are connected through a broken chain protecting bolt, the outer side surface of the coupler protecting cover is uniformly provided with signal transmission holes, one side of the roller chain coupler is provided with a fixed support, the roller chain coupler broken chain protection device can send out an alarm signal when the roller chain coupler is broken, so that the motor of the equipment is prompted to stop running, fault information is transmitted to a worker for maintenance, meanwhile, the protective function is achieved, other associated equipment is protected from being damaged, and the use safety is greatly improved.

Description

Chain breakage protection device for roller chain coupling

Technical Field

The utility model relates to a shaft coupling technical field specifically is a roller chain shaft coupling chain breakage protection device.

Background

The roller chain coupling is widely applied to mechanical equipment shafting transmission in various industries due to the advantages of simple structure, convenient assembly and disassembly, reliable work, long service life, low cost, strong applicability and the like.

However, the chain is worn and the strength is reduced due to long-term frequent use or improper installation and maintenance, and the chain is broken when the chain is seriously used, so that production accidents are caused. In the production equipment of the automobile industry, the faults often cause damage to the automobile body and the equipment, and other related equipment are damaged at the same time, so that the normal operation of the production line is influenced.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to overcome current defect, provide a roller chain coupling chain rupture protection device, can send alarm signal when the roller chain coupling takes place the chain rupture, make equipment motor bring to rest to give the staff with fault information transmission and maintain, have the guard action simultaneously concurrently, can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a roller chain coupling chain breakage protection device comprises a roller chain coupling, wherein two ends of the roller chain coupling are respectively connected with a transmission shaft and a motor shaft, flanges at two sides of the roller chain coupling are respectively provided with a pair of coupling protecting covers, the two coupling protecting covers which are vertically distributed at the same side are connected through a fastening bolt, the coupling protecting covers at two sides are connected through a chain breakage protection bolt, signal transmission holes are uniformly distributed on the outer side surfaces of the coupling protecting covers, one side of the roller chain coupling is provided with a fixing support, a photoelectric switch mounting plate which can be adjusted up and down is arranged on the fixing support, a photoelectric switch is fixed on the photoelectric switch mounting plate, a reflecting plate is arranged at the corresponding position of the other side of the roller chain coupling, the positions of the photoelectric switch, the signal transmission holes and the reflecting plate correspond to each other, and the output end of the photoelectric switch is electrically connected with the input end of an external alarm device, the output end of the external alarm device is electrically connected with the input end of the equipment motor controller.

As a preferred technical scheme of the utility model, the quantity of broken chain protection bolt is at least three, and broken chain protection bolt equipartition is between the shaft coupling protecting cover that both sides distribute.

As an optimized technical scheme of the utility model, the shaft coupling protecting cover is the arc structure.

As an optimal technical scheme of the utility model, C type groove has been seted up to one side of fixed bolster, the photoelectric switch mounting panel in C type inslot slidable and with C type groove between through locking bolted connection.

Compared with the prior art, the beneficial effects of the utility model are that: this roller chain coupling chain breakage protection device compact structure, reasonable in design, convenient operation, can send out the warning and shut down when the chain is broken, fix the both sides at the roller chain coupling through setting up four shaft coupling protecting covers, through setting up photoelectric switch and reflecting plate respectively in the both sides of roller chain coupling, make under the normal condition photoelectric signal can't transmit the reflecting plate through the signal transmission hole on the shaft coupling protecting cover, during the chain breakage, photoelectric signal can be from transmitting the reflecting plate on the signal transmission hole conduction of off-position, photoelectric switch receives the signal and triggers the warning, and control motor outage, broken chain protection bolt and shaft coupling protecting cover replace cracked chain transmission moment of torsion, prevent that the lifting unit of axis of rotation one side from taking place more serious accident because of losing power and action of gravity, provide reliable safety guarantee when the chain is broken.

Drawings

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

FIG. 2 is a schematic view of the coupling shield connection;

FIG. 3 is a left side view of FIG. 2;

fig. 4 is a schematic structural view of the fixing bracket.

In the figure: the device comprises a transmission shaft 1, a motor shaft 2, a coupler protecting cover 3, a broken chain protecting bolt 4, a fastening bolt 5, a signal transmission hole 6, a roller chain coupler 7, a fixing support 8, a photoelectric switch mounting plate 9, a locking bolt 10, a photoelectric switch 11 and a reflecting plate 12.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments (for convenience of description and understanding, the following description is made with the upper side of fig. 1 as the upper side). Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a roller chain coupling chain breakage protection device comprises a roller chain coupling 7, two ends of the roller chain coupling 7 are respectively connected with a transmission shaft 1 and a motor shaft 2, flanges at two sides of the roller chain coupling 7 are respectively provided with a pair of coupling protecting covers 3, the coupling protecting covers 3 are of arc structures and are convenient to better attach and fix with the surface of the roller chain coupling 7, two coupling protecting covers 3 which are distributed up and down at the same side are connected through fastening bolts 5, the coupling protecting covers 3 at two sides are connected through chain breakage protecting bolts 4, the chain breakage protecting bolts 4 are in clearance fit with the coupling protecting covers 3, preferably, the number of the chain breakage protecting bolts 4 is six, the six chain breakage protecting bolts 4 are uniformly distributed between the coupling protecting covers 3 distributed at two sides, and the connection stability between the coupling protecting covers 3 at two sides can be improved by arranging the six chain breakage protecting bolts 4, the outer side surface of the coupling protecting cover 3 is uniformly provided with signal transmission holes 6, one side of the roller chain coupling 7 is provided with a fixed support 8, the fixed support 8 is provided with a photoelectric switch mounting plate 9 which can be adjusted up and down, a photoelectric switch 11 is fixed on the photoelectric switch mounting plate 9, the other side of the roller chain coupling 7 is provided with a reflecting plate 12 at a corresponding position, the positions of the photoelectric switch 11, the signal transmission holes 6 and the reflecting plate 12 are corresponding, one side of the fixed support 8 is provided with a C-shaped groove, the photoelectric switch mounting plate 9 can slide in the C-shaped groove and is connected with the C-shaped groove through a locking bolt 10, the position of the photoelectric switch 11 can be adjusted by adjusting the photoelectric switch mounting plate 9, so that photoelectric signals can normally pass through the signal transmission holes 6, the output end of the photoelectric switch 11 is electrically connected with the input end of an external alarm device, and the output end of the external alarm device is electrically connected with the input end of a device motor controller, the chain breakage protection device for the roller chain coupling is compact in structure, reasonable in design and convenient to operate, can give an alarm and stop when a chain is broken, protects other associated equipment from being damaged, and greatly improves use safety.

When in use: when the roller chain coupler 7 is not provided with a chain, a switch signal can be transmitted to the reflecting plate 12 through the signal transmission hole 6 on the coupler protecting cover 3, when the roller chain coupler 7 works normally, the chain blocks a photoelectric switch signal, and the photoelectric switch 11 cannot receive a return signal and is in an unfired state; when chain breakage occurs, a chain at the chain breakage position is separated from the roller chain coupling 7, so that photoelectric signals can be transmitted to the reflecting plate 12 from the signal transmission hole 6 at the separation position, the photoelectric switch 11 receives signals to trigger alarm, the alarm signals inform the motor to be powered off, equipment stops running, and workers are informed to maintain the roller chain coupling 7, when the roller chain coupling 7 normally works, the chain breakage protection bolt 4 on the coupling protective cover 3 is not stressed, torque is transmitted only by the chain of the roller chain coupling 7, when chain breakage occurs, the chain breakage protection bolt 4 is stressed due to the fact that the coupling protective covers 3 on two sides are slightly rotated due to chain breakage, holes on two sides are not concentric, and the chain breakage protection bolt 4 and the coupling protective covers 3 replace the broken chain to transmit torque, the more serious accident of the lifting component at one side of the transmission shaft 1 due to the loss of power and gravity action is prevented.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. The utility model provides a roller chain coupling chain breakage protection device, includes roller chain coupling (7), and the both ends of roller chain coupling (7) are connected its characterized in that with transmission shaft (1) and motor shaft (2) respectively: the roller chain coupling is characterized in that flanges on two sides of the roller chain coupling (7) are respectively provided with a pair of coupling protective covers (3), the two coupling protective covers (3) which are distributed at the same side from top to bottom are connected through fastening bolts (5), the coupling protective covers (3) on two sides are connected through broken chain protective bolts (4), signal transmission holes (6) are uniformly distributed on the outer side surface of each coupling protective cover (3), one side of the roller chain coupling (7) is provided with a fixed support (8), the fixed support (8) is provided with a photoelectric switch mounting plate (9) which can be adjusted up and down, a photoelectric switch (11) is fixed on the photoelectric switch mounting plate (9), a reflecting plate (12) is arranged at the corresponding position of the other side of the roller chain coupling (7), the positions of the photoelectric switch (11), the signal transmission holes (6) and the reflecting plate (12) are corresponding, and the output end of the photoelectric switch (11) is electrically connected with the input end of an external alarm device, the output end of the external alarm device is electrically connected with the input end of the equipment motor controller.

2. A roller chain coupling chain breakage protection device according to claim 1, characterized in that: the number of the chain breakage protection bolts (4) is at least three, and the chain breakage protection bolts (4) are uniformly distributed between the coupling protective covers (3) distributed on two sides.

3. A roller chain coupling chain breakage protection device according to claim 1, characterized in that: the coupler protecting cover (3) is of an arc-shaped structure.

4. A roller chain coupling chain breakage protection device according to claim 1, characterized in that: c-shaped groove has been seted up to one side of fixed bolster (8), photoelectric switch mounting panel (9) slidable in C-shaped groove just with be connected through locking bolt (10) between the C-shaped groove.

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