The bearing capacity of the gear transmission shown in the strength design is determined not only by the gear but also by the spring and pin coupling used. Therefore, the bearing capacity design of the gear transmission can be divided into three parts, namely gear transmission design and spring selection. Design and sales design. Assume that the power transmitted by the gear transmission is N, and the gear transmission adopts a soft-toothed closed-type transmission with an accuracy class of 7. The bearing capacity of the gear transmission, the spring and the pin coupling are discussed separately. Gear transmission strength design For the gear transmission in the 711 range, it can be divided into the following two cases: the 79-stage closed-toothed spur gear transmission is used in the machine, and the tooth surface contact fatigue strength can be designed to the tooth root bending fatigue strength. More nuclear.

The compression load of the spring bearing 1 in the spring strength design model is the axial impact. The torsional load is the torque T2 carried by the gear transmission and the impact load in the circumferential direction. Considering the magnitude of the circumferential and axial loads and the nature of the impact, The spring is designed as a torsion spring and calculates the safety factor for the variable stress. Using a cylindrical helical torsion spring, the maximum torque applied by the spring, the bending allowable stress of the spring wire is obvious, the length L of the two springs is equal, and can be taken as half of the gear width. After the initial evaluation and calculation to determine the diameter of the spring wire, the ring of the spring The number n can also be determined, and the median diameter D2 can be selected according to the diameter of the gear hub.

The following EN124 classification represents a first guide of selection. A second guide details for each product the performance of features, among which ergonomics, absorption, installation, safety, security.

F900

A super heavy duty version of the Briflo double triangular grating.

Rated to Group 6 F900 load classification.

Application

Recommended for use in areas that are subjected to very heavy wheel loads such as aircraft pavements, container ports and docksides.

Briflo E600

A heavy duty double triangular grating.

Briflo is rated to Group 6 F900 load classification.

Application

Recommended for use in trunk roads carrying continuous fast moving traffic and industrial areas that are subjected to very heavy wheel loads such as motorways, docks and container areas.

D400

A D400 Grating and Frame with a 1:5 V profile, AquaVantage offers optimum performance in the key areas of water clearing capacity, operator safety and asset security. The range consists of 600x600, 900x900, 1200x675 and 675x1200 clear openings.

Rated to Group 4 D400 load classification.

Application

Ideally suited for carriageway and surface water drainage channels with a 1:5 V profile.

C250

Available as kerb hinged version and offers the benefits of the D400 unit of durability and security , but for lower intensity applications.

Watershed C250 is rated to Group 3 C250 load classification.

Application

Recommended for use in local access roads carrying continuous traffic where hinged access is required.

B125

Concave profile captive hinge grating.

Available in clear opening sizes 220x220 or 300x300.

The Aquaflo is rated to Group 2 B125 load classification.

Application

For use in conjunction with dished surface water channels.

Gully Grates

Gully Grates,Cast Iron Gully Grates,Road Gully Grates,Drain Grate

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