CN201465365U - Moment arm measuring instrument - Google Patents
Moment arm measuring instrument Download PDFInfo
- Publication number
- CN201465365U CN201465365U CN2009200772849U CN200920077284U CN201465365U CN 201465365 U CN201465365 U CN 201465365U CN 2009200772849 U CN2009200772849 U CN 2009200772849U CN 200920077284 U CN200920077284 U CN 200920077284U CN 201465365 U CN201465365 U CN 201465365U
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- CN
- China
- Prior art keywords
- plastic strip
- measuring instrument
- arm
- moment arm
- rule
- 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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Abstract
The utility model discloses a moment arm measuring instrument which comprises a supporting stand, a lever, a counterweight, a force gauge, a graduated scale and a plastic strip, wherein the top portion of the plastic strip is provided with a fixed block for fixing the plastic strip and the graduated scale vertically and slidably, a horizontal striping empty slot is arranged in the middle of the graduated scale, and the side face of the plastic strip is provided with a sliding block which penetrates through the empty slot of the graduated scale and is capable of sliding left and right. By utilizing the moment arm measuring instrument of the utility model, the vertical distance, namely lever arm, from supporting point to the action line of force can be accurately measured, and students can have deeper knowledge and understanding of moment arm.
Description
Technical field
The utility model relates to a kind of arm of force measuring instrument.
Background technology
In physics teaching in secondary school, the arm of force is meant the vertical range of fulcrum to line of action of force, in existing Force arm apparatus, because people all feel to judge with the individual whether it is vertical when measuring fulcrum to the vertical range of line of action of force, the arm of force measurement meeting that causes lever is error to some extent.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of arm of force measuring instrument, and can measure fulcrum accurately is the arm of force to the vertical range of line of action of force.
For solving the problems of the technologies described above, the utility model is that following technical scheme realizes:
A kind of arm of force measuring instrument, comprise support, lever, counterweight, dynamometer, rule, it also comprises a plastic strip, it is fixing with the vertical slip with rule of plastic strip that described plastic strip top is provided with fixed block, be provided with the horizontal stripe dead slot in the middle of the described rule, sliding shoe is established in described plastic strip side, and described sliding shoe passes the dead slot of described rule and can horizontally slip.
Above-mentioned sliding shoe is a bolt.
The advantage that the utility model compared with prior art has is: simple in structure, easy to operate, can accurately measure arm of force size.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and embodiments:
Fig. 1 is an one-piece construction synoptic diagram of the present utility model.
Fig. 2 is the side view of plastic strip in the utility model.
Embodiment
As shown in Figure 1, a kind of arm of force measuring instrument, comprise support 1, lever 2, counterweight 3, dynamometer 4, rule 5, also comprise a plastic strip 6,, be provided with fixed block 61 at plastic strip 6 tops for guaranteeing that plastic strip 6 is vertical with rule 5, plastic strip 6 is fixing with rule 5 vertical slips, be provided with the horizontal stripe dead slot in the middle of the described rule 5, sliding shoe 62 is established in described plastic strip 6 sides, and described sliding shoe 62 passes the dead slot of described rule 5 and can horizontally slip.Described sliding shoe 62 can be selected bolt for use, and its side view as shown in Figure 2.
When using the utility model arm of force measuring instrument, will with the vertical plastic strip 6 of rule 5 slide to lever 2 on need the position of measurement point corresponding, can measure fulcrum accurately is lever arm of force to the vertical range of line of action of force, can also deepen understanding and the understanding of student to the arm of force.
Claims (2)
1. arm of force measuring instrument, comprise support, lever, counterweight, dynamometer, rule, it is characterized in that, it also comprises a plastic strip, it is fixing with the vertical slip with rule of plastic strip that described plastic strip top is provided with fixed block, be provided with the horizontal stripe dead slot in the middle of the described rule, sliding shoe is established in described plastic strip side, and described sliding shoe passes the dead slot of described rule and can horizontally slip.
2. a kind of arm of force measuring instrument according to claim 1 is characterized in that described sliding shoe is a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200772849U CN201465365U (en) | 2009-06-26 | 2009-06-26 | Moment arm measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200772849U CN201465365U (en) | 2009-06-26 | 2009-06-26 | Moment arm measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201465365U true CN201465365U (en) | 2010-05-12 |
Family
ID=42392713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200772849U Expired - Fee Related CN201465365U (en) | 2009-06-26 | 2009-06-26 | Moment arm measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201465365U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108225146A (en) * | 2017-12-08 | 2018-06-29 | 鞍山钢铁集团有限公司 | A kind of hopper wagon bottom door switching mechanism self-lock force arm measure device and measuring method |
| CN110599871A (en) * | 2019-10-25 | 2019-12-20 | 常州市戚墅堰高级中学 | Device for verifying two-force balance condition |
| CN113677903A (en) * | 2019-05-16 | 2021-11-19 | 舍弗勒技术股份两合公司 | Method and device for mounting a rolling bearing |
-
2009
- 2009-06-26 CN CN2009200772849U patent/CN201465365U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108225146A (en) * | 2017-12-08 | 2018-06-29 | 鞍山钢铁集团有限公司 | A kind of hopper wagon bottom door switching mechanism self-lock force arm measure device and measuring method |
| CN113677903A (en) * | 2019-05-16 | 2021-11-19 | 舍弗勒技术股份两合公司 | Method and device for mounting a rolling bearing |
| CN113677903B (en) * | 2019-05-16 | 2023-07-04 | 舍弗勒技术股份两合公司 | Method and device for mounting a rolling bearing |
| CN110599871A (en) * | 2019-10-25 | 2019-12-20 | 常州市戚墅堰高级中学 | Device for verifying two-force balance condition |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20100626 |