CN113607258A - Mechanical physical balance starting mechanism device - Google Patents
Mechanical physical balance starting mechanism device Download PDFInfo
- Publication number
- CN113607258A CN113607258A CN202111056332.8A CN202111056332A CN113607258A CN 113607258 A CN113607258 A CN 113607258A CN 202111056332 A CN202111056332 A CN 202111056332A CN 113607258 A CN113607258 A CN 113607258A
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- Prior art keywords
- balance
- tappet
- hole
- mechanism device
- mechanical physical
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- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 230000000670 limiting effect Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 4
- 238000011160 research Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G23/00—Auxiliary devices for weighing apparatus
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
- H01H19/02—Details
- H01H19/10—Movable parts; Contacts mounted thereon
- H01H19/14—Operating parts, e.g. turn knob
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transmission Devices (AREA)
Abstract
一种机械式物理天平启动机构装置，涉及量器领域。为解决现有的物理天平启动旋钮频繁操作，导致启动旋钮连接轴上的天平挺杆支臂销磨损严重、折弯甚至折断，从而减少了物理天平使用寿命问题。启动钮连接轴的一端与启动钮连接，启动钮连接轴的另一端穿过天平底座通孔之后，与星型凸轮的中心孔固定连接，星型凸轮的一侧设有凸台，且凸台的外表面上加工有半圆形凹槽轨道，且半圆形凹槽轨道外表面上均匀的设有多个末端天平挺杆停止孔位，且天平的挺杆的底部与末端天平挺杆停止孔位内部底端接触。本发明适用于量器领域。
A mechanical physical balance starting mechanism device relates to the field of measuring instruments. In order to solve the problem of frequent operation of the starting knob of the existing physical balance, the balance tappet support pin on the connecting shaft of the starting knob is seriously worn, bent or even broken, thereby reducing the service life of the physical balance. One end of the connecting shaft of the starting button is connected with the starting button. After the other end of the connecting shaft of the starting button passes through the through hole of the balance base, it is fixedly connected with the center hole of the star cam. One side of the star cam is provided with a boss, and the boss is A semi-circular groove track is processed on the outer surface of the semi-circular groove track, and a plurality of end balance tappet stop holes are evenly arranged on the outer surface of the semi-circular groove track, and the bottom of the balance tappet and the end balance tappet stop Bottom contact inside the hole. The present invention is applicable to the field of measuring instruments.
Description
Technical Field
The invention relates to the field of measuring instruments, in particular to a mechanical physical balance starting mechanism device.
Background
The balance is an instrument for weighing the mass of an object, and commonly used are an analytical balance, a physical balance, a student balance (simple physical balance), a tray balance and the like. The physical balance is the most basic and commonly used instrument in college physical experiments, is manufactured by utilizing the principle that the forces acting on equal force arms are equal when a lever is balanced, and mainly comprises a vernier, a scale, a balance nut, a bottom plate, an index plate, a beam pointer, a plumb line and the like.
People often can be through the frequent start-up of start knob and closing physical balance when using physical balance, if adjust balance, add and subtract the testee, weigh the object in-process add and subtract the weight, the adjusting etc. of loose code position, so physical balance uses often can lead to the balance tappet support arm pin on the start knob connecting axle to wear seriously, bend even break because of the frequent operation of start knob after a period, this is with regard to the greatly reduced balance life. Therefore, in order to better ensure the accuracy of the measurement result and prolong the service life of the balance, the technical improvement of the mechanical structure of the part becomes more important through the research on the design principle of the physical balance and related theories. The method has important scientific significance and practical value in the technical fields of colleges and universities, biology, medicine, scientific research and the like.
In conclusion, the conventional physical balance starting knob is frequently operated, so that a balance tappet support arm pin on a starting knob connecting shaft is seriously abraded, bent or even broken, and the service life of the physical balance is shortened.
Disclosure of Invention
The invention provides a mechanical physical balance starting mechanism device, aiming at solving the problems that a balance tappet support arm pin on a starting knob connecting shaft is seriously abraded, bent and even broken due to frequent operation of a starting knob of the existing physical balance, so that the service life of the physical balance is shortened.
The invention relates to a mechanical physical balance starting mechanism device, which comprises a star cam, a starting button connecting shaft and a starting button, wherein the starting button connecting shaft is connected with the starting button;
one end of a starting button connecting shaft is connected with a starting button, the other end of the starting button connecting shaft penetrates through a balance base through hole and then is fixedly connected with a center hole of a star-shaped cam, a boss is arranged on one side of the star-shaped cam, a semicircular groove rail is machined on the outer surface of the boss, n tail end balance tappet stopping hole positions are uniformly arranged on the outer surface of the semicircular groove rail, n is a positive integer, and the bottom of a tappet of a balance is in contact with the bottom end inside the tail end balance tappet stopping hole position;
furthermore, the number n of the stop hole positions of the tail end balance tappet rods is more than or equal to 10 and less than or equal to 20;
furthermore, two locking holes are processed on the other side of the star cam and are symmetrically arranged;
furthermore, a limiting spring is arranged in each locking hole, and a limiting steel ball is arranged at the top of each limiting spring;
furthermore, an arc-shaped groove track is processed on the end face of the balance base through hole, k semi-submersible balance tappet stopping holes are formed in the arc-shaped groove track along the circumferential direction, and k is a positive integer;
furthermore, the outer surface of the limiting steel ball is in contact with the inner wall of a stop hole of a semi-submersible balance tappet on the end surface of a through hole of the balance base;
furthermore, the number k of the semi-submersible balance tappet stopping holes is more than or equal to 10 and less than or equal to 20;
furthermore, when the balance is used, the start knob is rotated to drive the star-shaped cam to enable the tappet of the balance to move up and down in the vertical direction, so that the balance can be started and closed. The device not only has flexible and simple operation, excellent safety and high reliability, but also reduces the mutual abrasion among parts in the frequent operation process, and further prolongs the service life of the physical balance.
Compared with the prior art, the invention has the following beneficial effects:
the invention overcomes the defects of the prior art, one end of a starting button connecting shaft is connected with a starting button, the other end of the starting button connecting shaft penetrates through a balance base through hole and then is fixedly connected with a central hole of a star-shaped cam, one side of the star-shaped cam is provided with a boss, a semicircular groove track is processed on the outer surface of the boss, a plurality of tail end balance tappet stopping hole positions are uniformly arranged on the outer surface of the semicircular groove track, the bottom of a tappet of a balance is contacted with the bottom end inside the tail end balance tappet stopping hole positions, and the balance is started and closed by rotating the starting button to drive the star-shaped cam to enable the tappet of the balance to move up and down in the vertical direction. The device not only has flexible and simple operation, excellent safety and high reliability, but also reduces the mutual abrasion among parts in the frequent operation process and prolongs the service life of the physical balance.
Drawings
FIG. 1 is a side cross-sectional view of an actuator assembly for a mechanical physical balance according to the present invention;
FIG. 2 is a side view of a star cam in a mechanical physical balance actuator assembly according to the present invention;
FIG. 3 is a front view of a star cam in the actuator assembly of a mechanical physical balance according to the present invention;
FIG. 4 is a front cross-sectional view of the balance base through hole of the mechanical physical balance actuator assembly according to the present invention;
fig. 5 is a side view of the balance base through hole of the mechanical physical balance actuating mechanism device according to the present invention.
Detailed Description
The first embodiment is as follows: the present embodiment is described with reference to fig. 1 to 5, and the mechanical physical balance actuating mechanism device of the present embodiment includes a star cam 100, an actuating button connecting shaft 101, and an actuating button 102;
one end of a starting button connecting shaft 101 is connected with a starting button 102, the other end of the starting button connecting shaft 101 penetrates through a balance base through hole 104 and then is fixedly connected with a central hole 100-1 of a star-shaped cam 100, a boss is arranged on one side of the star-shaped cam 100, a semicircular groove track 100-2 is processed on the outer surface of the boss, n tail end balance tappet stopping hole positions 100-3 are uniformly arranged on the outer surface of the semicircular groove track 100-2, n is a positive integer, and the bottom of a balance tappet 103 of a balance is in contact with the bottom end inside the tail end tappet stopping hole position 100-3;
in the embodiment, when the balance is used, the start knob 102 is rotated to drive the star-shaped cam 100 to enable the tappet 103 of the balance to move up and down in the vertical direction, so that the balance can be started and closed. The device not only has flexible and simple operation, excellent safety and high reliability, but also reduces the mutual abrasion among parts in the frequent operation process, and further prolongs the service life of the physical balance.
The second embodiment is as follows: the present embodiment will be described with reference to fig. 2, which is a further limitation of the balance actuating mechanism device according to the first embodiment, and in the mechanical physical balance actuating mechanism device according to the present embodiment, the number n of the end balance tappet stop holes 100-3 is n, n is 10 ≦ n ≦ 20.
The third concrete implementation mode: the present embodiment is described with reference to fig. 3, and is a further limitation of the balance actuating mechanism device according to the first embodiment, and in the mechanical physical balance actuating mechanism device according to the present embodiment, two locking holes 100-6 are formed on the other side of the star cam 100, and the two locking holes 100-6 are symmetrically arranged.
The fourth concrete implementation mode: referring to fig. 3, this embodiment is a further limitation of the balance actuating mechanism device according to the third embodiment, and in the mechanical physical balance actuating mechanism device according to this embodiment, a limiting spring 100-4 is disposed inside each of the locking holes 100-6, and a limiting steel ball 100-5 is disposed on the top of the limiting spring 100-4.
The fifth concrete implementation mode: the present embodiment is described with reference to fig. 4, and is a further limitation of the balance actuating mechanism device according to the first embodiment, in the mechanical physical balance actuating mechanism device according to the present embodiment, an arc-shaped groove rail 104-1 is processed on an end surface of the balance base through hole 104, and k semi-submersible balance tappet stop holes 104-2 are circumferentially provided in the arc-shaped groove rail 104-1, where k is a positive integer.
The sixth specific implementation mode: the present embodiment is described with reference to fig. 1 and 2, and the present embodiment further defines the balance actuating mechanism device according to the fourth embodiment, in the mechanical physical balance actuating mechanism device according to the present embodiment, the outer surface of the position-limiting steel ball 100-5 contacts with the inner wall of the semi-submersible balance tappet stop hole 104-2 on the end surface of the balance base through hole 104;
in the specific embodiment, the outer surface of the limiting steel ball 100-5 is in contact with the inner wall of the semi-submersible balance tappet stopping hole 104-2 on the end face of the balance base through hole 104, so that the limiting effect on the device is achieved.
The seventh embodiment: the present embodiment will be described with reference to fig. 4, which is a balance actuating mechanism according to the fifth embodiment, and in the mechanical physical balance actuating mechanism according to the present embodiment, the number k of the semi-submersible balance tappet stopping holes 104-2 is 10 ≦ k ≦ 20.
Principle of operation
When the balance is used, the start knob 102 is rotated to drive the star-shaped cam 100 to enable the tappet 103 of the balance to move up and down in the vertical direction, and therefore the purpose of starting and closing the balance is achieved. The device not only has flexible and simple operation, excellent safety and high reliability, but also reduces the mutual abrasion among parts in the frequent operation process, and further prolongs the service life of the physical balance.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111056332.8A CN113607258B (en) | 2021-09-09 | 2021-09-09 | Mechanical physical balance starting mechanism device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111056332.8A CN113607258B (en) | 2021-09-09 | 2021-09-09 | Mechanical physical balance starting mechanism device |
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| Publication Number | Publication Date |
|---|---|
| CN113607258A true CN113607258A (en) | 2021-11-05 |
| CN113607258B CN113607258B (en) | 2022-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111056332.8A Active CN113607258B (en) | 2021-09-09 | 2021-09-09 | Mechanical physical balance starting mechanism device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB763626A (en) * | 1954-01-29 | 1956-12-12 | Robert John Whitcroft | Improvements relating to the construction of precision balances |
| GB771010A (en) * | 1954-11-17 | 1957-03-27 | Oertling Ltd | Improvements connected with fine weighing balances |
| GB1196518A (en) * | 1967-04-12 | 1970-06-24 | Zanussi A Spa Industrie | An Electric Timing Device |
| CN101907169A (en) * | 2010-02-26 | 2010-12-08 | 浙江吉利汽车研究院有限公司 | Parking and braking mechanism of automobile gear box |
| CN203717132U (en) * | 2014-01-06 | 2014-07-16 | 潍柴动力股份有限公司 | Signal panel of camshaft of electronic control diesel engine |
| CN206516186U (en) * | 2016-12-08 | 2017-09-22 | 孙德仓 | A kind of laser auxiliary control physical balance |
-
2021
- 2021-09-09 CN CN202111056332.8A patent/CN113607258B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB763626A (en) * | 1954-01-29 | 1956-12-12 | Robert John Whitcroft | Improvements relating to the construction of precision balances |
| GB771010A (en) * | 1954-11-17 | 1957-03-27 | Oertling Ltd | Improvements connected with fine weighing balances |
| GB1196518A (en) * | 1967-04-12 | 1970-06-24 | Zanussi A Spa Industrie | An Electric Timing Device |
| CN101907169A (en) * | 2010-02-26 | 2010-12-08 | 浙江吉利汽车研究院有限公司 | Parking and braking mechanism of automobile gear box |
| CN203717132U (en) * | 2014-01-06 | 2014-07-16 | 潍柴动力股份有限公司 | Signal panel of camshaft of electronic control diesel engine |
| CN206516186U (en) * | 2016-12-08 | 2017-09-22 | 孙德仓 | A kind of laser auxiliary control physical balance |
Non-Patent Citations (2)
| Title |
|---|
| 刘勃含: "《小小发明家》", 31 December 2012, 现代出版社 * |
| 柯士铎 等: "《机械基础知识》", 28 February 1962, 农业工业出版社 * |
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| Publication number | Publication date |
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| CN113607258B (en) | 2022-05-27 |
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