JPS63145138U

JPS63145138U -

Info

Publication number: JPS63145138U
Application number: JP3810387U
Authority: JP
Priority date: 1987-03-16
Filing date: 1987-03-16
Publication date: 1988-09-26
Anticipated expiration: 2002-03-16
Also published as: JPH0533945Y2

Description

[Brief explanation of the drawing]

第１図はこの考案によるトルクセンサの概略縦
断面図、第２図は固定部材に穿設した絞り孔の有
効絞り面積を示す概略図、第３図および第４図は
絞り孔の作動原理を示す概略図、第５図は従来の
ひずみゲージ式のトルクセンサを示す概略図、第
６図は従来の磁気式のトルクセンサを示す概略図
である。１，２，２１，２２……トーシヨナルバー、３
，４……端部、５，６……固定部材、５ａ，６ａ
……窪み部、５ｂ，６ｂ……外周縁部、５ｃ，６
ｃ……内周縁部、７……支持部材、７ａ……環状
孔、８……オイルシール、９，１０……孔、１１
，１２，２３，２４……圧力絞り孔、１３，１４
……密封部、１５，２５……有効絞り面積、３０
，３５……軸、３１……ゲージ、３２……リード
線、３３……スリツプリング、３４……ブラシ、
３６……円板、３７……永久磁石、３８……ひず
み材、３９……ピツクアツプコイル、４０……処
理回路。 Fig. 1 is a schematic longitudinal sectional view of the torque sensor according to this invention, Fig. 2 is a schematic diagram showing the effective aperture area of the aperture hole drilled in the fixed member, and Figs. 3 and 4 illustrate the operating principle of the aperture hole. FIG. 5 is a schematic diagram showing a conventional strain gauge type torque sensor, and FIG. 6 is a schematic diagram showing a conventional magnetic type torque sensor. 1, 2, 21, 22... torsional bar, 3
, 4... end, 5, 6... fixing member, 5a, 6a
...Recessed portion, 5b, 6b...Outer periphery, 5c, 6
c... Inner peripheral edge, 7... Support member, 7a... Annular hole, 8... Oil seal, 9, 10... Hole, 11
, 12, 23, 24...pressure restrictor hole, 13, 14
... Sealed part, 15, 25 ... Effective aperture area, 30
, 35...shaft, 31...gauge, 32...lead wire, 33...slip ring, 34...brush,
36... Disk, 37... Permanent magnet, 38... Strain material, 39... Pick-up coil, 40... Processing circuit.

Claims

[Claims for Utility Model Registration] (1) Fixed members 5 and 6 are attached to the ends of a pair of torsional bars 1 and 2, one of which is on the fixed side and the other is on the torque acting side, and which are coaxial.
are arranged respectively to enable sliding contact, and an annular recess 5a, is provided in the center of the outer peripheral surface of both fixing members 5, 6.
6a, and a supporting member 7 is disposed on the outside of both the fixing members 5, 6 via the sealing member 8, and the recessed parts 5a, 6a of both the fixing members 5, 6 are sealed in the sealing part 1.
3 and 14, and further, holes 9 and 10 are formed in the support member 7 to communicate with the respective sealing parts 13 and 14, and one hole 9 is connected to a fluid supply source, and the other hole is connected to a fluid supply source. A fluid measuring member is connected to 10,
Furthermore, the torque sensor is characterized in that both of the fixing members 5 and 6 are provided with throttle holes 11 and 12 that communicate with the other fixing member. (2) The throttle holes 11 and 12 provided in both the fixing members 5 and 6 and communicating with the other fixing member are arranged so that when torque is applied to the other torsional bar 2 and the angle changes with respect to the one torsional bar 1, are shifted from each other, and the matching effective aperture area 15 of both holes 11 and 12 changes sequentially, and furthermore, the change in the effective aperture area 15 is proportional to the angle change of the torsional bar 2. The torque sensor according to the range 1 above. (3) The aperture holes 11 and 12 provided in both the fixing members 5 and 6 and communicating with the other fixing member are fan-shaped with the axis of the torsional bars 1 and 2 at the center. Torque sensor according to item 2.