Gear coupling anticreep tooth device
Technical field
The utility model relates to the device that uses on a kind of machinery, particularly relates to the gear coupling anticreep tooth device that uses on a kind of steel rolling equipment.
Background technique
In steel rolling is produced,, damage machinery and electrical equipment for preventing that driving torque is unusual in the operation of rolling.Usually in being connected of motor output end and gear-box or speed reducer input end, all adopt tooth-like Design of Safety Pin Coupling.When torque exceeded the safe transmission moment of motor or equipment such as gear-box, speed reducer, safety pin ruptured, and motor and mechanical driving part break away from, thus protection relevant device safety.Have no progeny but work as safety pin, because inertia, the two ends half-coupling will keep turning round separately at short notice.
At present, because to the ring gear of tooth-like Design of Safety Pin Coupling,, do not have other device to fix axially taking off the tooth direction except that being connected and fixed by safety pin under the normal condition.Therefore, after safety pin ruptured, two half-coupling ring gears will take off tooth.Because the gear coupling that general steel rolling is adopted is bigger, after taking off tooth inside and outside the generation coupling,, have a strong impact on production to recovering to bring big difficulty.
The model utility content
Technical problem to be solved in the utility model provides the effective gear coupling anticreep tooth device of a kind of anticreep tooth.
For addressing the above problem, the utility model has adopted following technological scheme, and gear coupling anticreep tooth device comprises coupling, the drive end of coupling and driven end are respectively arranged with the flange that matches, and it is characterized in that: the flange of coupling is provided with retaining spare.
Retaining spare comprises fixed end, linkage section and retaining end, and fixed end is connected with the two ends of linkage section respectively with the retaining end, forms concave structure, and concave structure matches with the circumferential surface and the both ends of the surface of flange respectively.
The fixed end of described retaining spare is fixed on an end of coupling flange.
Further be that the retaining end of retaining spare and the end face of flange leave the gap.
Further be that the linkage section of retaining spare and the circumferential surface of flange leave the gap.
Described retaining spare is a weldment.
The material of retaining spare is the A3 steel.
Adopted such scheme; when torque exceeds the safe transmission moment of motor or equipment such as gear-box, speed reducer; fracture takes place with the protection relevant device in safety pin; safety pin is had no progeny, because inertia, the two ends half-coupling will keep turning round separately at short notice; because the position-limiting action of retaining spare is arranged; the flange separation that has prevented two half-couplings is excessive, thereby has effectively stoped the tooth that takes off of ring gear, avoids the longer shutdown processing time.The anticreep tooth device retaining of this large-scale gear coupling is effective; And volume is little, and is in light weight, and it is easy, convenient to change; Because retaining plate adopts the A3 steel softer with respect to the coupling material, therefore, can not damage coupling.
Description of drawings
Fig. 1 is the utility model gear coupling anticreep tooth Unit Installation schematic representation.
Fig. 2 is the plan view of retaining spare.
Component, toponym and pairing mark among the figure: coupling (6), flange (8,9), retaining spare (2), fixed end (3), retaining end (5), linkage section (4), drive end (6) and driven end (7).
Embodiment
Below in conjunction with accompanying drawing the utility model is further specified.
As depicted in figs. 1 and 2, gear coupling anticreep tooth device comprises coupling, and the drive end 6 of coupling and driven end 7 are respectively arranged with the flange 8,9 that matches, and the flange 8,9 of coupling 6 is provided with retaining spare 2.When torque exceeds the safe transmission moment of motor or equipment such as gear-box, speed reducer, safety pin ruptures, safety pin is had no progeny, reason owing to inertia, the drive end 6 of coupling and driven end 7 will keep turning round separately at short notice, because the position-limiting action of retaining spare 2 is arranged, the flange 8,9 that has prevented the drive end 6 of coupling and driven end 7 separates excessive, thereby has effectively stoped the tooth that takes off of ring gear.
Retaining spare 2 comprises fixed end 3, linkage section 4 and retaining end 5, and fixed end 3 is connected with the two ends of linkage section 4 respectively with retaining end 5, forms concave structure, and concave structure matches with the circumferential surface and the both ends of the surface of flange 8,9 respectively.This concave structure can be just spacing with the flange 1 of coupling 6.
The fixed end 3 of retaining spare 2 is fixed on an end of coupling 6 flanges 8,9.The fixed end 3 of retaining spare 2 can be fixed on the flange of coupling drive end 6, also can be fixed on the flange of driven end 7.
The retaining end 5 of retaining spare 2 leaves the gap with the end face of flange; The linkage section 4 of retaining spare 2 leaves the gap with the circumferential surface of flange 8,9.The effect in this gap is to reinstall after shear pin breakage in the safety pin, and rotating joint is adjusted the position relation of flange 8,9 at retaining end 5 flange on one side easily, and safety pin can more successfully be installed.
The fixed plate 3 of described retaining spare 2, linkage section 4 and retaining end 5 are fixing by being welded to connect.Because the required precision of this retaining spare 2 is not high, if process with positive block of material, the parts of an integral body of formation, bigger to the waste of material, if fixed plate 3, linkage section 4 and retaining end 5 are processed respectively, welding fabrication, effectively economical with materials then.
The material of retaining spare 2 is the A3 steel.This material price is cheaper, can effectively save cost, because retaining spare 2 adopts the A3 steel softer with respect to coupling 6 materials, when device fails, at first can destroy retaining spare 2, and can not damage coupling 6.