CN2495854Y - Speed reducer used for cooling power - Google Patents

Abstract

The utility model discloses a speed reducer for cooling tower, comprising an upper end cover, a lower end cover, a case, a rotary shaft, an upper bearing and a lower bearing. The case takes an integrity structure, the upper bearing is arranged at the upper end of the case, and the lower bearing is arranged at the lower end of the case, whereas, a bolt is provided for connecting the upper end cover and the case as well as the lower end cover and the case. As the middle upper and the lower bearings are positioned in the case of integrity structure, the utility model enhances the coaxiality of the shaft, improves the mounting precision, releases the shaft-sealing abrasion, and prolongs the service life of the speed reducer.

Description

A kind of used for cooling tower retarder

The utility model relates to the retarder in a kind of cooling tower that is installed on central chiller plant, and it is used for blower fan and slows down and transferring power.

As shown in Figure 1, existing used for cooling tower slows down and comprises, lower end cap 3,3 ', casing 1, rotating shaft 2, on, lower bearing 4c, 4b, 4a, between casing 1 and the upper end cap 3 connecting base 1a is arranged, screw 6 passes connecting base 1a, connects upper end cap 3 and casing 1 upper end, upper bearing (metal) 4c is installed in the connecting base 1a, lower bearing 4b, 4a is installed in casing 1 lower end, owing between casing 1 and the connecting base 1a alignment error is arranged, makes, the lower bearing installation precision is difficult to guarantee, the coaxality of rotating shaft also decreases, when rotating shaft is rotated under belt wheel 5 drives, phenomenons such as swing will take place, job insecurity, the wearing and tearing of axle envelope strengthen, and influence the retarder operating life.

The purpose of this utility model is a kind ofly can improve bearing, rotating shaft installation precision, working stability, the used for cooling tower retarder that can effectively increase the service life in order to provide.

The utility model main technical schemes is: this used for cooling tower retarder comprises upper and lower end cap, casing, rotating shaft, upper and lower bearing, casing is an overall structure, upper bearing (metal) is installed in the casing upper end, lower bearing, be installed in the casing lower end, have screw to connect upper end cap and casing and lower end cap and casing.

The upper and lower Bearing Installation of the utility model is in integrally-built casing, installation precision is significantly improved than existing split type retarder, thereby the rotating shaft installation precision, the coaxality that guarantee to be installed on the upper and lower bearing improve, make rotating shaft operate steadily when rotated, reduce the wearing and tearing of axle envelope, prolong the operating life of retarder.

Fig. 1 is the structural representation of existing used for cooling tower retarder;

Fig. 2 is an embodiment's of the utility model a structural representation.

As shown in Figure 2, the utility model comprises upper and lower end cap 3,3 ', casing 1, rotating shaft 2, upper and lower bearing, casing 1 is an overall structure, upper bearing (metal) 4c is installed in casing 1 upper end, lower bearing 4b, 4a are installed in casing 1 lower end, have screw 6 to connect upper end cap 3 and casing 1 and lower end cap 3 ' and casing 1.

Claims (1)

1, a kind of used for cooling tower retarder, comprise upper and lower end cap (3), (3 '), casing (1), rotating shaft (2), upper and lower bearing, it is characterized in that: casing (1) is an overall structure, upper bearing (metal) (4c) is installed in casing (1) upper end, lower bearing (4b), (4a) are installed in casing (1) lower end, have screw (6) to connect upper end cap (3) and casing (1) and lower end cap (3 ') and casing (1).

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