JPH01155102U

JPH01155102U -

Info

Publication number: JPH01155102U
Application number: JP4800088U
Authority: JP
Priority date: 1988-04-09
Filing date: 1988-04-09
Publication date: 1989-10-25

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例を示す正面断面図
、第２図は第１図の―矢視断面図、第３図は
受けリングの右側面図である。３……ハウジング、８……スピンドル、１３…
…調節プレート、１５……調節体、２１……第１
軸受、２２……アウターレース、３１……移動体
、３６……第２軸受、３７……アウターレース、
４３，４４……インナーレース、５１……高負荷
ストツパー、５３……調節プレート、６０……流
体通路、６１……ピストン、６７……低負荷スト
ツパー、７１……付勢手段。 FIG. 1 is a front cross-sectional view showing an embodiment of this invention, FIG. 2 is a cross-sectional view taken along the - arrow in FIG. 1, and FIG. 3 is a right side view of the receiving ring. 3...Housing, 8...Spindle, 13...
...adjustment plate, 15 ...adjustment body, 21 ...first
Bearing, 22... Outer race, 31... Moving body, 36... Second bearing, 37... Outer race,
43, 44... Inner race, 51... High load stopper, 53... Adjustment plate, 60... Fluid passage, 61... Piston, 67... Low load stopper, 71... Biasing means.

Claims

[Claims for Utility Model Registration] (1) A first bearing that is interposed between the spindle and the housing and has an inner race fixed to the spindle and an outer race fixed to the housing, and arranged axially apart from the first bearing. a second bearing that is interposed between the spindle and the moving body, and has an inner race fixed to the spindle and an outer race fixed to the moving body, respectively. a high-load stopper that is provided in the housing at one end in the axial direction from one end surface of the moving body and can come into contact with the moving body; and a high-load stopper that is provided in the housing and applies the fluid force of high-pressure fluid to the moving body to stop the movement. a fluid passageway that applies a high level preload to the first and second bearings by moving the body until it comes into contact with a high-load stopper; A low-load stopper that can be brought into contact with the movable body is always urged toward the other end in the axial direction, and when the pressure inside the fluid passage becomes low, the movable body is moved until it comes into contact with the low-load stopper. A spindle support device comprising: biasing means for applying a low level preload to the second bearing. (2) The spindle support device according to claim 1, wherein a piston is disposed at the tip opening of the fluid passage, and the fluid force of the fluid in the fluid passage is indirectly applied to the movable body via the piston. (3) An adjustment plate is removably attached between the high-load stopper and the housing, and when changing the high-level preload value, the adjustment plate is replaced with one of a different thickness. 1. The spindle support device according to 1. (4) The outer race of the first bearing is fixed to the housing by fixing an adjustment body to which the outer race is fixed to the housing, and an adjustment plate is removable between the adjustment body and the housing. 2. A spindle support device according to claim 1, wherein said adjustment plate is replaced with one of a different thickness when changing the low level preload value.