CN209496524U - Disk on a kind of three-line pendulum - Google Patents
Disk on a kind of three-line pendulum Download PDFInfo
- Publication number
- CN209496524U CN209496524U CN201821844733.3U CN201821844733U CN209496524U CN 209496524 U CN209496524 U CN 209496524U CN 201821844733 U CN201821844733 U CN 201821844733U CN 209496524 U CN209496524 U CN 209496524U
- Authority
- CN
- China
- Prior art keywords
- hole
- suspension point
- pilot pin
- straight line
- pendulum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Professional, Industrial, Or Sporting Protective Garments (AREA)
Abstract
The utility model discloses disks on a kind of three-line pendulum, one group of suspension point integrated positioning hole is equipped with every 120 degree of angles along upper disc radius direction on upper disk, suspension point integrated positioning hole includes through-hole first, through-hole second, through-hole third and straight line pylone, further includes the positioning that pilot pin is used for three-line pendulum suspension point.The utility model structure is simple, easy to use, is conducive to the suspension point position for changing three-line pendulum, further verifies the swaying movement regularity of three-line pendulum.
Description
Technical field
The utility model relates to a kind of component parts of experiment of machanics instrument three-line pendulum, circle on specially a kind of three-line pendulum
Disk.
Background technique
Three-line pendulum is the common physical experiment apparatus for measuring object rotation inertia, generally by upper disk, lower disc, Yi Jilian
Tie three suspension wires composition of disk and lower disc.The period that three-line pendulum does small angle oscillation isH in formula
For the vertical range between upper disk and lower disc, M and J are respectively the quality and rotary inertia of lower disc, and r and R are respectively upper circle
Distance of the suspension wire suspension point of disk and lower disc to central axis.The formula shows the swing period T of three-line pendulum and the suspension point position of suspension wire
It is closely related.But the suspension point position of existing three suspension wires of three-line pendulum is all unmodifiable, thus suspension point position can not be verified
Influence relationship of the difference to swing period.
Summary of the invention
The purpose of this utility model is the above problem for three-line pendulum, and developing a kind of can change the three of suspension point position
Disk on string pendulum.
In order to solve the above-mentioned technical problem, the utility model is achieved through the following technical solutions: disk on a kind of three-line pendulum,
Including upper disk, the upper disk is circle, and upper disc centre is provided with circular hole, for being fixed with three-line pendulum cradling piece, circular hole hole
The diameter matches of diameter and three-line pendulum cradling piece；Suspension point integrated positioning hole, the suspension point integrated positioning are additionally provided on the upper disk
Kong Gongsan group, every group of suspension point integrated positioning hole are arranged along upper disc radius direction, the angle of two adjacent groups suspension point integrated positioning hole
Spacing is 120 degree；The suspension point integrated positioning hole includes through-hole first, through-hole second, through-hole third and straight line pylone, the through-hole first,
Through-hole second, the aperture of through-hole third are identical, and through-hole first, through-hole third is set to straight line pylone both ends and is connected to straight line pylone, through-hole second
It is penetrated through in the middle part of straight line pylone and along through-hole second diametrical direction and straight line pylone；Further include and through-hole first, through-hole second, through-hole third
The pilot pin that aperture matches, is inserted in through-hole first or through-hole second or through-hole third totally by the pilot pin 3, is used for three-line pendulum
The positioning of suspension point；Pilot pin center is equipped with the threading hole of perforation pilot pin along pilot pin length direction, for wearing three-line pendulum
Cycloid.
The utility model is due to using above-mentioned design, using through-hole first, through-hole second, through-hole third and pilot pin, easily
Change the suspension point position of three-line pendulum.For example, can will then determine to suspension point is changed to the third position of through-hole from original through-hole second position
Position bolt is extracted from through-hole second, and running fix bolt enters suspension wire in through-hole third along straight line pylone, is then inserted into pilot pin logical
Kong Bingzhong.The utility model structure is simple, easy to use, is conducive to the suspension point position for changing three-line pendulum, further verifies
The swaying movement regularity of three-line pendulum.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawing.
Fig. 1 is the composition schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of pilot pin.
In figure: disk on 1., 11. circular holes, 2. suspension point integrated positioning holes, 21. through-hole first, 22. through-hole second, 23. through-holes third,
24. straight line pylone, 3. pilot pins, 31. bolt heads, 32. bodies, 33. threading holes, 34 locking knobs.
Specific embodiment
As shown in Figure 1, the center of upper disk 1 is provided with circular hole 11, the aperture of circular hole 11 and three-line pendulum cradling piece diameter matches.
One group of suspension point integrated positioning hole 2 is arranged every 120 degree of angles in radial direction along upper disk 1.Suspension point integrated positioning hole 2 includes through-hole
The aperture of first 21, through-hole second 22, through-hole the third 23, straight line pylone 24, through-hole first 21, through-hole second 22, through-hole the third 23 is identical, through-hole first
21, through-hole the third 23 is set to 24 both ends of straight line pylone and be connected to straight line pylone 24, and through-hole second 22 is set in the middle part of straight line pylone 24 simultaneously
Diametrically penetrated through with straight line pylone 24.In Fig. 1, pilot pin 3 is inserted in through-hole second 22.Pilot pin 3 totally 3 (to see clearly
Through-hole second 22 has only drawn two pilot pins 3 in Fig. 1).
As shown in Fig. 2, the bolt head 31 of pilot pin 3 is tack, body 32 is cylinder, the diameter and through-hole first of body 32
21, the aperture of through-hole second 22, through-hole the third 23 matches, and 3 central axis of pilot pin is equipped with perforation positioning along 3 length direction of pilot pin
The threading hole 33 of bolt 3, threading hole 33 are used to wear the cycloid of three-line pendulum.The vertical threading hole 33 in 31 side of bolt head is equipped with locking knob
34, for cycloid to be fixed in threading hole.
Claims (1)
1. disk on a kind of three-line pendulum, including upper disk, the upper disk is circle, and upper disc centre is provided with circular hole, circular hole hole
The diameter matches of diameter and three-line pendulum cradling piece；It is characterized by: suspension point integrated positioning hole is additionally provided on the upper disk, it is described outstanding
Totally three groups of integrated positioning hole of point, every group of suspension point integrated positioning hole are arranged along upper disc radius direction, the combination of two adjacent groups suspension point
The angular separation of location hole is 120 degree；The suspension point integrated positioning hole includes through-hole first, through-hole second, through-hole third and straight line pylone, institute
It is identical to state through-hole first, through-hole second, the aperture of through-hole third, through-hole first, through-hole third is set to straight line pylone both ends and connects with straight line pylone
Logical, through-hole second is set in the middle part of straight line pylone and penetrates through along through-hole second diametrical direction and straight line pylone；Further include and through-hole first, through-hole
The pilot pin that second, the third aperture of through-hole match, is inserted in through-hole first or through-hole second or through-hole third and uses by the pilot pin totally 3
In the positioning of three-line pendulum suspension point, pilot pin center is equipped with the threading hole of perforation pilot pin along pilot pin length direction, for wearing
The cycloid of three-line pendulum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821844733.3U CN209496524U (en) | 2018-11-09 | 2018-11-09 | Disk on a kind of three-line pendulum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821844733.3U CN209496524U (en) | 2018-11-09 | 2018-11-09 | Disk on a kind of three-line pendulum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209496524U true CN209496524U (en) | 2019-10-15 |
Family
ID=68151160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821844733.3U Expired - Fee Related CN209496524U (en) | 2018-11-09 | 2018-11-09 | Disk on a kind of three-line pendulum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209496524U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109300371A (en) * | 2018-11-09 | 2019-02-01 | 江南大学 | Disk on a kind of more suspension point three-line pendulums |
-
2018
- 2018-11-09 CN CN201821844733.3U patent/CN209496524U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109300371A (en) * | 2018-11-09 | 2019-02-01 | 江南大学 | Disk on a kind of more suspension point three-line pendulums |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191015 Termination date: 20201109 |