CN109186829A - A kind of device for air heat engine experiment precise measurement torque - Google Patents
A kind of device for air heat engine experiment precise measurement torque Download PDFInfo
- Publication number
- CN109186829A CN109186829A CN201810980298.5A CN201810980298A CN109186829A CN 109186829 A CN109186829 A CN 109186829A CN 201810980298 A CN201810980298 A CN 201810980298A CN 109186829 A CN109186829 A CN 109186829A
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- dynamometer
- pedestal
- torque
- plastic
- sliding rail
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- 238000005259 measurement Methods 0.000 title claims abstract description 16
- 238000002474 experimental method Methods 0.000 title abstract description 12
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000002184 metal Substances 0.000 claims abstract description 15
- 238000013461 design Methods 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/08—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computational Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Mathematical Physics (AREA)
- Pure & Applied Mathematics (AREA)
- Business, Economics & Management (AREA)
- Algebra (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Theoretical Computer Science (AREA)
- Testing Of Engines (AREA)
Abstract
A kind of device for air heat engine experiment precise measurement torque, by a concave character type unit of plastic, sliding rail, torque meter pedestal, cord, dynamometer pedestal, screw and two dynamometer compositions, a sliding rail is designed on concave character type unit of plastic, sliding rail is to be fixed on concave character type unit of plastic to be composed in parallel by two metal cylinders, torque meter pedestal is a hollow metal cylinder, at torque meter pedestal is fixed on above concave character type unit of plastic, cord is long for providing frictional force, one device for air heat engine experiment precise measurement torque, can be very good solve torque cannot keep it is constant, the problems such as torgue measurement is inaccurate.
Description
Technical field
The present invention relates to physics facility fields, in particular to air heat engine experiment measurement torque.
Background technique
In Experiment of College Physics, air heat engine laboratory apparatus is used to verify Carnot's theorem, and measures heat engine output power
With load and the variation relation of revolving speed.When carrying out the experiment of air heat engine, requirement of experiment: (1) air heat engine verifying card is being utilized
When promising reason, resistance torque must be remained unchanged；It (2), must when measuring the relationship of heat engine output power and resistance torque variation
Resistance torque must be accurately measured；But current torque meter is in an experiment since violent, resistance power is shaken in forced vibration
Square is not constant always, and there is also very big errors for current pointer torque meter measurement moment of friction: (1) in flywheel
During shaft rotates, pointer torque amplitude of fluctuation is excessive, causes error in reading very big, carries out if applying external force to it
Intervene, stablizes pointer registration, the accuracy of registration will be impacted, can equally introduce biggish error.(2) pointer
The dial of torque meter is easy to fall off, can generate friction with flywheel after falling off, simultaneously because scale deviates, come to sensing tape biggish
Error.In view of the above-mentioned problems, it has been proposed that corrective measure: such as a kind of utility model patent " air heat engine torgue measurement display dress
Set ", the patent No.: 201620055647.9, but still not can be carried out accurate reading.
Summary of the invention
The present invention is that the torque in the experiment of air heat engine is overcome to cannot keep the problems such as constant, torgue measurement is inaccurate, is made
A device for air heat engine experiment precise measurement torque is made, can be very good to solve these problems.
The technical solution used to solve the technical problems of the present invention is that: one kind testing precise measurement torque for air heat engine
Device, by a concave character type unit of plastic, sliding rail, torque meter pedestal, cord, dynamometer pedestal, screw and two dynamometers
Composition, it is characterized in that: concave character type unit of plastic long 20cm, wide 5cm, a height of 6cm, design a sliding rail on concave character type unit of plastic,
Sliding rail is to be fixed on concave character type unit of plastic to be composed in parallel by two metal cylinders, and the diameter of metal cylinder is 1cm,
Long 18cm, at a distance of 2cm between two metal cylinders, torque meter pedestal is that a diameter is 3cm, the hollow metal circle of a length of 2cm
Column, torque meter pedestal are fixed on above concave character type unit of plastic at 1cm, the long 20cm of cord, for providing frictional force, screw length
2cm, diameter 0.5cm, dynamometer and dynamometer pedestal are connected to form an entirety, and dynamometer pedestal is by two parallel diameters
It is made, and can place on the slide rail of the half-round metal combination of materials of 1.2cm, the side of dynamometer pedestal has one
Diameter is the screw thread hole of 0.5cm, and the screw thread hole that screw is inserted into dynamometer base side can be fixed on the slide rail by dynamometer,
Dynamometer 1 and dynamometer 2 are separately mounted on the sliding rail at left and right sides of torque meter pedestal, and rope winds torque meter pedestal 3 and encloses, and
The both ends of rope are connected with the measurement end of the dynamometer of the left and right sides respectively, because the length of rope word is constant, if fixed survey
The position of power meter 1 changes the position of dynamometer 2, so that it may the size of accurate control resistance torque, while it is also ensured that resistance
The size of torque is constant.From force analysis: the resultant force of frictional force suffered by flywheel is the difference F of two dynamometer registrations, torque
Meter pedestal radius r(, which can measure, to be obtained), then the torque that so torque meter generates air heat engine is。
The beneficial effects of the present invention are: reading will not be influenced because experimental facilities vibrates compared with existing torque meter, it can
With the more accurate size for measuring torque, the control and measurement of torque are all more accurate, reduce experimental error, improve experiment
Precision.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is structural principle and embodiment schematic diagram of the invention；
Fig. 2 is dynamometer internal structure chart；
Fig. 3 is the dial chart after dynamometer covers.
Wherein, 1, concave character type unit of plastic, 2, torque meter pedestal, 3, dynamometer Isosorbide-5-Nitrae, dynamometer 2,5, rope, 6, sliding rail, 7,
Screw, 8, dynamometer measurement end, 9, dynamometer pedestal.
Specific embodiment
A long 20cm is designed, the concave character type unit of plastic (1) of wide 5cm, a height of 6cm design on concave character type unit of plastic (1)
One sliding rail (6), sliding rail (6) are to be fixed on concave character type unit of plastic (1) to be composed in parallel by two metal cylinders, metal
The diameter of cylindrical body is 1cm, long 18cm, and at a distance of 2cm between two metal cylinders, torque meter pedestal (2) is that a diameter is
The hollow metal cylinder of 3cm, a length of 2cm, torque meter pedestal (2) are fixed on above concave character type unit of plastic (1) at 1cm, cord (5)
Long 20cm, for providing frictional force, screw (7) length 2cm, diameter 0.5cm, dynamometer 1(3), dynamometer 2(4) respectively with
Two dynamometer pedestals (9) are connected, dynamometer 1(3), dynamometer 2(4) constitute two entirety with meter pedestal (9) respectively, survey
Power meter pedestal (9) is made of two parallel diameters of the half-round metal material of 1.2cm, and can be placed on sliding rail
(6) on, it is the screw thread hole of 0.5cm that, which there is a diameter in the side of dynamometer pedestal (9), and screw (7) is inserted into dynamometer pedestal (9)
The screw thread hole of side can be by dynamometer 1(3), dynamometer 2(4) be fixed on sliding rail (6), will be with dynamometer pedestal (9)
Dynamometer 1(3) it is mounted on sliding rail (6) with dynamometer 2(4), rope (5) winds torque meter pedestal (2) 3 and encloses, and by rope (5)
Both ends be connected respectively with the measurement end (8) of the dynamometer 1(3 of the left and right sides), dynamometer 2(4).
Claims (1)
1. designing a long 20cm, the concave character type unit of plastic (1) of wide 5cm, a height of 6cm design one on concave character type unit of plastic (1)
A sliding rail (6), sliding rail (6) are to be fixed on concave character type unit of plastic (1) to be composed in parallel by two metal cylinders, round metal
The diameter of cylinder is 1cm, long 18cm, and at a distance of 2cm between two metal cylinders, torque meter pedestal (2) is that a diameter is 3cm,
The hollow metal cylinder of a length of 2cm, torque meter pedestal (2) are fixed on above concave character type unit of plastic (1) at 1cm, and cord (5) is long
20cm, for providing frictional force, screw (7) length 2cm, diameter 0.5cm, dynamometer 1(3), dynamometer 2(4) respectively with two
A dynamometer pedestal (9) be connected, dynamometer 1(3), dynamometer 2(4) respectively with meter pedestal (9) constitute two entirety, dynamometry
Meter pedestal (9) is made of two parallel diameters of the half-round metal material of 1.2cm, and can be placed on sliding rail
(6) on, it is the screw thread hole of 0.5cm that, which there is a diameter in the side of dynamometer pedestal (9), and screw (7) is inserted into dynamometer pedestal (9)
The screw thread hole of side can be by dynamometer 1(3), dynamometer 2(4) be fixed on sliding rail (6), will be with dynamometer pedestal (9)
Dynamometer 1(3) it is mounted on sliding rail (6) with dynamometer 2(4), rope (5) winds torque meter pedestal (2) 3 and encloses, and by rope (5)
Both ends be connected respectively with the measurement end (8) of the dynamometer 1(3 of the left and right sides), dynamometer 2(4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810980298.5A CN109186829A (en) | 2018-08-27 | 2018-08-27 | A kind of device for air heat engine experiment precise measurement torque |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810980298.5A CN109186829A (en) | 2018-08-27 | 2018-08-27 | A kind of device for air heat engine experiment precise measurement torque |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109186829A true CN109186829A (en) | 2019-01-11 |
Family
ID=64916065
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810980298.5A Pending CN109186829A (en) | 2018-08-27 | 2018-08-27 | A kind of device for air heat engine experiment precise measurement torque |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109186829A (en) |
Citations (19)
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2018
- 2018-08-27 CN CN201810980298.5A patent/CN109186829A/en active Pending
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Application publication date: 20190111 |