Method for adjusting clearance of bearing at upper part of heavy loaded planetary reducer of coal cutter cutting unit
A technology of shearer cutting part and planetary reducer, which is applied to mechanical equipment, transmission parts, belts/chains/gears, etc., can solve the problems of oil leakage of floating seals, and achieve easy installation, good effect, and adjustment value accurate effect
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[0035] Example 1
[0036] like figure 1 , figure 2 and image 3 A method for adjusting the upper bearing clearance of the heavy-duty planetary reducer in the cutting part of the shearer shown, the heavy-duty planetary reducer includes an inner gear 5 fixedly installed on the cutting part of the shearer, The sun gear 1 and the planetary carrier 12 on the cutting part of the coal machine, the planetary carrier 12 is mounted with a plurality of planetary gears 4 arranged around the sun gear 1, the sun gear 1 is meshed with the plurality of planetary gears 4, so The inner gear 5 meshes with a plurality of planetary gears 4 located inside it, and a bearing seat 3 is provided on the cutting part of the shearer and located at the lower part of the planet carrier 12, and a bearing seat 3 is provided on the bearing seat 1 3. Tapered roller bearing one 2 matched with the planet carrier 12, the upper part of the inner gear 5 is provided with a bearing seat two 7, and the bearing seat...
Example Embodiment
[0050] Example 2
[0051] like figure 1 , figure 2 and image 3 As shown in the figure, another heavy-duty planetary reducer in the cutting part of the shearer is selected as the adjustment object, and the structure and shape of the heavy-duty planetary reducer are the same as those described in Embodiment 1.
[0052] The difference between this embodiment and the first embodiment is that when the tapered roller bearing 26 is under no load, the method for adjusting the clearance of the tapered roller bearing 26 includes the following steps:
[0053] Step 1. Install the sealing cover: install the sealing cover 9 on the bearing seat two 7, the sealing cover 9 is annular, and the sealing cover 9 includes a connecting ring 9-1 and The connecting ring II 9-2 is adapted to the outer ring 6-1 of the tapered roller bearing II 6, the connecting ring II 9-1 and the connecting ring II 9-2 are integrally formed, and the connecting ring II 9-2 is integrally formed. 2. A rigid washer 1...
Example Embodiment
[0063] Example 3
[0064] like figure 1 , figure 2 and image 3 As shown, another heavy-duty planetary reducer in the cutting part of the shearer is selected as the adjustment object. The structure and shape of the heavy-duty planetary reducer are the same as those of the heavy-duty planetary reducer described in Embodiment 1.
[0065] The difference between this embodiment and the first embodiment is that when the tapered roller bearing 26 is under no load, the method for adjusting the clearance of the tapered roller bearing 26 includes the following steps:
[0066] Step 1. Install the sealing cover: install the sealing cover 9 on the bearing seat two 7, the sealing cover 9 is annular, and the sealing cover 9 includes a connecting ring 9-1 and The connecting ring II 9-2 is adapted to the outer ring 6-1 of the tapered roller bearing II 6, the connecting ring II 9-1 and the connecting ring II 9-2 are integrally formed, and the connecting ring II 9-2 is integrally formed. 2...
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