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Test reference system of crank dynamometer

A reference system and power meter technology, which is applied in the calibration/testing of force/torque/power measuring instruments, measuring devices, instruments, etc., can solve the problems of easy operation accuracy and low efficiency of operators, and achieve reasonable design and improved Operational efficiency, efficiency improvement effect

Pending Publication Date: 2019-07-09
QINGDAO MAGENE INTELLIGENCE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Most of the existing crank power meter test reference systems simulate the force by manually moving weights, and then there are problems of low efficiency, easy injury of the operator and low operation accuracy. The present invention proposes a fully automatic crank power meter. Benchmark System

Method used

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  • Test reference system of crank dynamometer
  • Test reference system of crank dynamometer
  • Test reference system of crank dynamometer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment one, reference figure 1 and figure 2 , The benchmark system for crank dynamometer testing in this embodiment includes: a main frame 1 , a lifting platform 2 , a motor 3 , a weight set 4 , a suspension rod 6 , a chain crank mounting system, and an electronic control unit 5 .

[0038] The main frame 1 includes a whole frame composed of cross bars and six vertical bars 101. The six vertical bars 101 divide the space in the frame into two parts. The left side is the weight group 4 lifting part, and the right side is the electric control part, including To drive the electric control unit 5 of the motor. A chain crank mounting system is installed on the main frame 1.

[0039] The lifting table 2 is used to support the weight group 4, including a supporting plate 201, a vertical sliding rod 202, the supporting plate 201 is set on the vertical sliding rod 202, the bottom of the supporting plate 201 is a top plate 204, and the top plate 204 is connected with the dr...

Embodiment 2

[0043] Embodiment two, refer to image 3 and Figure 4 , the present embodiment proposes a weight set 4, including a weight body 41 and a suspension structure 414. The bottom of the weight body 41 has a concave platform 411; , or be set as a hanging structure 414; the middle part has a movable cavity 412 connected with the concave platform portion 411; the hanging structure 414 includes a stopper and a fixed part, the stopper can move up and down in the movable cavity, and the fixed part Fix it on the boss of another weight.

[0044] The weights in the weight group 4 are stacked on each other when placed, and the uppermost weight needs to be hung on the bottom of the suspension rod 6, so the uppermost weight is set as the hanging structure 414, and the design of the hanging structure 414 should be consistent with the hanging structure 414. Cooperate with the bottom end of the rod, a hook can be set at the bottom end of the suspension rod 6, and a matching collar can be set a...

Embodiment 3

[0048] Embodiment three, refer to Figure 5 and Figure 6 , the present embodiment proposes a chain crank mounting system, including a crank horizontal fixing tool 8 and a chain tensioning table 9, the crank horizontal fixing tool 8 includes a tool body 801, a pressing block 802 and a horizontal hole 803, and the crank 7 passes through the pressing block 802 It is movably installed on the frock body 801. After adjusting the level, one end hangs the weight through the suspension rod 6, and the other end is fixed by the horizontal positioning shaft 12 inserted into the horizontal hole. Chain tensioning platform 9 comprises: support seat 91 and the sliding seat 92 above it, and sliding seat 92 comprises fixed block 921, slide block 922, block 923, locking device 924 and rotary handle 925 successively from left to right, leading screw 93 one end is fixed on the fixed block 921, and connects the rotating handle 925 after passing through the slide block 922 and the stop block 923. ...

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Abstract

The invention provides a test reference system of a crank dynamometer. The test reference system comprises a main frame comprising a vertical rod, wherein a chain crank mounting system is installed atthe top portion of the main frame, a crank is installed on the chain crank mounting system when test is performed, and a handing rod is hung at the crank end; a weight set comprising a plurality of mutually stacked weights, the weight at the uppermost end sleeves and is hung at the bottom end of the handing rod, and hanging structures are arranged to allow the weights to sleeve and hang with eachother; a lifting table on which the weight set is located; and an electric control unit configured to drive a motor. The whole device is reasonable and compact in structure design and provides the automation design idea in the industry for the first time, the motor drives the lifting table to lift and go down to achieve holding and unloading weights with different weights so as to apply forces tothe cranks by different weights to allow the crank to be deformed and truly simulate the treading of the crank by employing two feet when people perform outdoor riding. The test reference system of the crank dynamometer cannot depend on carrying by manual work to increase and decrease the weights so as to improve the efficiency.

Description

technical field [0001] The invention belongs to the field of mechanical equipment, and in particular relates to a crank dynamometer test reference system. Background technique [0002] One of the main indicators for judging the quality of a bicycle is lightness, that is, the amount of power required when riding a bicycle. Now the riding power is mainly measured by a crank power meter. At present, most crank dynamometers on the market calibrate the measurement reference of the dynamometer by hanging a rated weight. Specifically, the crank is fixed by the crank mounting system, and the force is applied to the end of the crank by increasing or decreasing the weight to simulate the force generated by the human while riding. Generated power to verify the accuracy of the power meter. [0003] There is following defect in above-mentioned system: [0004] At present, the force is simulated by manually moving weights. The process is as follows: hang a tray at the end of the crank,...

Claims

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Application Information

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IPC IPC(8): G01L25/00
CPCG01L25/006
Inventor 于锋冷玉亮潘会娟
Owner QINGDAO MAGENE INTELLIGENCE TECH CO LTD
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