Press-fitting device for a stepped type needle roller bearing without inner ring
A technology of needle roller bearings and press-fitting devices, which is applied in the direction of shafts and bearings, shafts, crankshafts, etc., and can solve problems such as easy tilting of bearings and inability to complete press-fitting
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Example Embodiment
[0029] Example 1: Such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Image 6 , Figure 7 In the illustrated embodiment, a stepped needle roller bearing without inner ring is press-fitted device, which includes a bearing press-fitting base and a power electric cylinder 1. The bearing press-fitting base includes a force transmission base 2, a bearing push rod 3. One end of the bearing push rod 3 close to the power electric cylinder 1 is the rear end of the bearing push rod 3. The force transmission seat 2 is connected to the rear end of the bearing push rod 3. The power electric cylinder 1 has a piston rod. The protruding direction is toward the force transmission seat 2. The bearing push rod 3 is sleeved with an outer positioning sleeve 4 that is slidingly connected to the bearing push rod 3 and is coaxial, and the outer positioning sleeve 4 is provided with a matching inner hole 5. The preset inner hole 6, the matching inner hole 5, the preset inner hole 6 are co...
Example Embodiment
[0033] Embodiment 2: The basic structure and implementation of this embodiment are the same as those of Embodiment 1, and the difference lies in: Figure 8 , Picture 9 As shown in the figure, the outer positioning sleeve 4 is provided with an inner slide groove 19, and the outer positioning sleeve 4 is provided with an adjusting main rod 20 that can slide in the inner slide groove 19. The adjusting main rod 20 Passing through the axis of the outer positioning sleeve 4 and perpendicular to the axis of the outer positioning sleeve 4, both ends of the adjustment main rod 20 are outside the outer positioning sleeve 4, and two self-adjusting parts are respectively provided at both ends of the adjustment main rod 20. The self-adjusting part includes an outer horizontal link 21, a vertical link 22 connected to the outer horizontal link 21, and a self-adjusting horizontal rod 23 connected to the vertical link 22. Two self-adjusting parts belonging to the two self-adjusting parts The ho...
Example Embodiment
[0039] Embodiment 3: The basic structure and implementation of this embodiment are the same as those of Embodiment 2, the difference lies in that Picture 10 , Picture 11 As shown in the figure, the outer ring limiting rod 24 is slidably connected to the adjusting main rod 20, and the sliding direction is horizontal, and the inner end of the outer ring limiting rod 24 is connected to the outer positioning sleeve 4. The outer ring limiting rod 24 is slidingly connected with the adjusting main rod 20, which ensures that the outer ring limiting rod 24 can move toward the bearing hole 31 along with the bearing to be press-fitted. The large-diameter section 17 is press-fitted with the bearing hole 31 In the process, the outer ring limit rod 24 still provides the centering function for the bearing to be press-fitted at all times. When the bearing to be press-fitted has a tendency to tilt, the outer-ring limit rod 24 completely clamps the inclination angle of the bearing to be press-f...
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