JPH01146135U

JPH01146135U -

Info

Publication number: JPH01146135U
Application number: JP4186388U
Authority: JP
Priority date: 1988-03-31
Filing date: 1988-03-31
Publication date: 1989-10-09
Anticipated expiration: 2003-03-31
Also published as: JPH0731148Y2

Description

[Brief explanation of drawings]

第１図は、本考案に係るトルク測定装置の全体
の構成を一部破断して示す側面図、第２図は、第
１図に示す実施例の車輪を省略した正面図、第３
図は、第１図の実施例が有する脱輪防止機構部を
一部破断して示す側面図（ただし、速度検出装置
を付設）、第４図は、他の脱輪防止機構部の構成
を示す第１図の破断部を一部省略して示す側面図
、第５図および第６図は、起歪板の構成を詳しく
示した図で、このうち第５図は正面図、第６図は
第５図のＡ―Ａ′矢視断面図、第７図は、第５図
に示した第２添着予定面の１つを代表としてトル
ク検出用のひずみゲージの添着状態を示す拡大断
面図、第８図は、トルク検出用のホイートストン
ブリツジの一実施例を示す回路図、第９図は、ト
ルク検出動作を説明するためにトルク用起歪片の
近傍を誇張して示す拡大平面図である。１……駆動軸、１ａ……車輪取付部、１ｂ……
取付ねじ穴、２……キヤリパー、３……車輪、３
ａ……リム、４……デイスク、４ａ……切断部、
５……デイスクスペーサ、５ａ……取付ねじ孔、
６……溶接部、７……車軸アダプタ、７ａ，２０
……座繰り穴、７ｂ，２０ａ……挿通孔、８，１
３……インロー部、９……起歪板取付ねじ孔、１
０……起歪板、１１……起歪片、１２，１４……
取付孔、１５……環状溝、１６……取付ボルト、
１６ａ……頭部、１７……カバー、１８……貫通
孔、１９……円状凹部、２１……カバー取付ボル
ト、２２……脱輪防止機構部、２４……スリツプ
リング装置、２５ａ……正規のオフセツト位置、
２６……トルク検出器、２７……ハブナツト、４
１……柱状部、４２……脱輪ストツパ、４６……
ボルト型ストツパ、４９……起歪片形成孔、５０
……トルク用起歪片、５１，５２……ひずみゲー
ジ添着予定面、６５……ブリツジの第１辺、６６
……ブリツジの第２辺、６７……ブリツジの第３
辺、６８……ブリツジの第４辺、７４……速度検
出器、Ａ１〜Ａ１６，Ｂ１〜Ｂ１６……ひずみゲ
ージ。 FIG. 1 is a partially cutaway side view showing the entire configuration of the torque measuring device according to the present invention, FIG. 2 is a front view of the embodiment shown in FIG. 1 with wheels omitted, and FIG.
The figure is a partially cutaway side view of the wheel-drop prevention mechanism part of the embodiment shown in Figure 1 (however, a speed detection device is attached), and Figure 4 shows the configuration of another wheel-drop prevention mechanism part. The side view shown in FIG. 1 with the broken part partially omitted, and FIGS. 5 and 6 are diagrams showing the structure of the strain plate in detail, of which FIG. 5 is a front view and FIG. is a cross-sectional view taken along the line A-A' in FIG. 5, and FIG. 7 is an enlarged cross-sectional view showing a state in which a strain gauge for torque detection is attached to one of the surfaces shown in FIG. 5 where a strain gauge is attached as a representative. , FIG. 8 is a circuit diagram showing an embodiment of a Wheatstone bridge for torque detection, and FIG. 9 is an enlarged plan view showing the vicinity of the torque strain-generating piece in an exaggerated manner to explain the torque detection operation. It is. 1... Drive shaft, 1a... Wheel mounting part, 1b...
Mounting screw hole, 2...Caliper, 3...Wheel, 3
a...Rim, 4...Disk, 4a...Cutting part,
5...Disk spacer, 5a...Mounting screw hole,
6...Welding part, 7...Axle adapter, 7a, 20
...Counterbore hole, 7b, 20a...Insertion hole, 8,1
3... Pilot part, 9... Strain plate mounting screw hole, 1
0...Strain plate, 11...Strain piece, 12, 14...
Mounting hole, 15... annular groove, 16... mounting bolt,
16a... Head, 17... Cover, 18... Through hole, 19... Circular recess, 21... Cover mounting bolt, 22... Derailment prevention mechanism, 24... Slip ring device, 25a... regular offset position,
26...Torque detector, 27...Hub nut, 4
1... Column part, 42... Wheel derailment stopper, 46...
Bolt type stopper, 49... Strain piece forming hole, 50
... Torque strain piece, 51, 52 ... Planned surface for attaching strain gauge, 65 ... First side of bridge, 66
...Second side of Britsuji, 67...Third side of Britsuji
Side, 68... Fourth side of bridge, 74... Speed detector, A1-A16, B1-B16... Strain gauge.

Claims

[Scope of Claim for Utility Model Registration] (1) In a torque measuring device that measures the torque acting on a wheel by converting it into an electrical quantity, the wheel mounting of the drive shaft is provided with hub bolts that vary in number and location depending on the vehicle model. a plurality of axle adapters each having a hub bolt insertion hole suitable for each vehicle model so that the adapter can be mounted with a hub nut on the part;
A wheel with a large circular hole formed in the center of the disk, a disk spacer that is fitted into the circular hole of this wheel and firmly fixed to the wheel while maintaining the same offset as a regular wheel; The shape is approximately disc-shaped, the axle adapter is concentrically superimposed on a portion near the center, the disc spacer is overlapped concentrically on a portion near the periphery, and holes of a number divisible by at least 4 are uniformly formed on the circumference of a predetermined radius. As a result, a plurality of spoke-like strain-generating pieces are formed that extend in the radial direction between the adjacent holes, and the thickness of the strain-generating piece in the axial direction is larger than the minimum width in the radial direction. , a strainable plate that is firmly fixed to the axle adapter with a first bolt near the inner side of the strainable piece; a cover superimposed on the strain plate and firmly fixed together with the strain plate to the disc spacer with a second bolt; and a hole formed in a pair across a predetermined strain plate of the strain plate A strain gauge is attached to a first attachment surface on one side and a second attachment surface on the other side, and the strain gauge attached to the first attachment surface forming one of the pair is A strain gauge is connected to the opposing first and second bridge sides, respectively, and attached to the second attaching surface, which is the other of the pair, to the third bridge side, which is adjacent to the first and second bridge sides, respectively. and a fourth bridge side, respectively, to form a Wheatstone bridge for torque detection. (2) In the Wheatstone bridge, the strain gauge attached to the first attachment surface forming one of the pair and attached to the half circumference of the strain plate is attached two times for each half circumference.
A strain gauge is connected to the opposite first and second bridge sides, and attached to the second attaching surface forming the other of the pair, and attached to the half circumference of the strain plate. The torque measuring device according to claim 1, characterized in that the torque measuring device is constructed by connecting circuits to third and fourth bridge sides adjacent to the first and second bridge sides, respectively. .