CN200996866Y - Self-aligning device of electronic balance - Google Patents
Self-aligning device of electronic balance Download PDFInfo
- Publication number
- CN200996866Y CN200996866Y CN 200720066900 CN200720066900U CN200996866Y CN 200996866 Y CN200996866 Y CN 200996866Y CN 200720066900 CN200720066900 CN 200720066900 CN 200720066900 U CN200720066900 U CN 200720066900U CN 200996866 Y CN200996866 Y CN 200996866Y
- Authority
- CN
- China
- Prior art keywords
- self
- electronic balance
- carriage
- reducing motor
- eccentric wheel
- 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
Links
Abstract
A self-calibrating apparatus for electronic scale is provided, which comprises a a bracket (2) hinged to a fulcrum shaft (3), a calibration counterweight (9) arranged on the front end of the bracket (2), an eccentric pulley (6) that is connected to the rear end of the bracket (2) in a movable manner and fixed to a drive shaft (4), wherein: one end of the drive shaft (4) is directly connected to a reducing motor (7).
Description
Technical field
The utility model relates to electronic balance, particularly relates to the internal calibration device of electronic balance.
Background technology
The high-precision electronic balance all must carry out self-correcting to the zero initial state of weighing sensor when weighing.Self-correcting is finished by the self-calibrating apparatus that is installed in the electronic balance.Be provided with in the electronic balance as the correcting-weight with reference to benchmark, this correcting-weight is shelved on the carriage.During self-correcting, forward starts micromotor moves down the carriage front end lentamente, and the correcting-weight that is installed in the front end recess is put on the interior scale pan lentamente, carries out self-correcting.After correction was finished, forward startup micromotor had been lifted up the carriage front end lentamente again, and correcting-weight is removed from the interior scale pan lentamente, just can carry out weighing.These are crossed range request and carry out lentamente, therefore need carry out big deceleration to motor and could drive the carriage swing than number, the self-calibrating apparatus of existing electronic balance is to be rotated by the Pyatyi open type deceleration strip movable eccentric wheel of motor through gear drive, thereby realizes swinging up and down of carriage.Defective such as there is complex structure in this scheme, part is many, assembly difficulty is high, manufacturability and poor reliability, noise are big, be difficult to reach designing requirement, be difficult to meet customer need.
The utility model content
The technical problems to be solved in the utility model provides a kind of electronic balance self-calibrating apparatus simple in structure, easy to assembly.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: a kind of self-calibrating apparatus of electronic balance, comprise that one is hinged on the carriage on the fulcrum shaft, the front end of carriage is provided with correcting-weight, the rear end of carriage and an eccentric wheel flexibly connect, described eccentric wheel is fixed on the transmission shaft, and an end of described transmission shaft directly is connected with a reducing motor.
The transmission scheme that the utility model adds multistage gear with motor of the prior art changes into and only adopts a reducing motor, simplify the structure greatly, transmission shaft also becomes one by many, also make the assembling of kinematic train become very easy, the requirement of parts machining process and assembly technology is reduced greatly.This structure is because driving-chain is short simultaneously, and noise is also very little.
In the technique scheme, transmission shaft is by a shaft coupling and reducing motor direct connection.Because the output speed of reducing motor is very low, so transmission shaft can directly link to each other with the output shaft of reducing motor.
As a kind of preferred version of technique scheme, a swinging block is also fixed in the rear end of described carriage, and swinging block is provided with slotted eye, and described eccentric wheel is positioned at this slotted eye and cooperates with swinging block is rotatable.When eccentric wheel rotates in swinging block, can drive carriage and swing up and down.
Described reducing motor is connected and composed by micromotor and planetary reducer straight line.Utilize planetary large speed ratio characteristic, can export the satisfactory slow-speed of revolution with compact structure.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the structural representation of the utility model electronic balance self-calibrating apparatus.
Fig. 2 is the vertical view of Fig. 1.
Embodiment
As shown in the figure, the same with existing electronic balance, frame 1 is installed on the base of electronic balance, and fulcrum shaft 3 is fixed on the frame 1, and the middle part of carriage 2 is hinged on the fulcrum shaft 3, and two trailing arm front ends of carriage 2 are provided with recess, and correcting-weight 9 just is disposed across in this recess.The rear end of carriage 2 is fixedly mounting a swinging block 5 by two connecting links, and swinging block 5 is provided with slotted eye 51, and eccentric wheel 6 is positioned at this slotted eye 51, and eccentric wheel 6 is fixed on the transmission shaft 4, and an end of transmission shaft 4 is connected with reducing motor 7 straight lines by shaft coupling 8.Reducing motor 7 is connected and composed by micromotor and planetary reducer straight line, volume is very little, compact conformation can be exported the satisfactory slow-speed of revolution, the 16GA1627-09220-300 type motor that this reducing motor 7 can adopt Guangyun Motor Co., Ltd., Shanghai to produce.Eccentric wheel 6 contacts with the upper and lower wall of swinging block slotted eye 51, and can wherein rotate, but between the front and back walls of eccentric wheel 6 and swinging block slotted eye 51 certain clearance is arranged, and when rotating with assurance eccentric wheel 6, swinging block 5 can drive carriage 2 and swing up and down.
During self-correcting, forward starts reducing motor 7, eccentric wheel 6 rotates and presses down swinging block 5 in the slotted eye 51 of swinging block 5, driving carriage 2 swings, the trailing arm front end moves down around fulcrum shaft 3, the correcting-weight 9 that is placed in its front end recess is put on the interior scale pan of electronic balance, and carriage 2 continues to move down and separate with correcting-weight 9, can carry out self-correcting.
After self-correcting is finished, continue forward and start reducing motor 7, eccentric wheel 6 be rotated further and on lift swinging block 5, make carriage 2 front end perks, correcting-weight 9 fall into the trailing arm recess and continue on move away from the interior scale pan, this moment, electronic balance was in the weighing state for the treatment of.
The utility model is owing to selected decelerator for use, and make its output shaft and transmission shaft by the shaft coupling direct connection, thus having improved design, reduced assembly difficulty, improved manufacturability and reliability, noise has become quiet, reach designing requirement, satisfied client's needs.
Claims (4)
1. the self-calibrating apparatus of an electronic balance, comprise that one is hinged on the carriage (2) on the fulcrum shaft (3), the front end of carriage (2) is provided with correcting-weight (9), the rear end of carriage (2) and an eccentric wheel (6) flexibly connect, described eccentric wheel (6) is fixed on the transmission shaft (4), it is characterized in that: an end of described transmission shaft (4) directly is connected with a reducing motor (7).
2. the self-calibrating apparatus of electronic balance according to claim 1 is characterized in that: described transmission shaft (4) is by a shaft coupling (8) and reducing motor (7) direct connection.
3. the self-calibrating apparatus of electronic balance according to claim 1, it is characterized in that: a swinging block (5) is also fixed in the rear end of described carriage (2), swinging block (5) is provided with slotted eye (51), and described eccentric wheel (6) is positioned at this slotted eye (51) and cooperates with swinging block (5) is rotatable.
4. the self-calibrating apparatus of electronic balance according to claim 1, it is characterized in that: described reducing motor (7) is connected to form by micromotor and planetary reducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720066900 CN200996866Y (en) | 2007-01-31 | 2007-01-31 | Self-aligning device of electronic balance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720066900 CN200996866Y (en) | 2007-01-31 | 2007-01-31 | Self-aligning device of electronic balance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200996866Y true CN200996866Y (en) | 2007-12-26 |
Family
ID=38995300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200720066900 Expired - Fee Related CN200996866Y (en) | 2007-01-31 | 2007-01-31 | Self-aligning device of electronic balance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200996866Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192814A (en) * | 2010-03-19 | 2011-09-21 | 周长明 | Dead weight type standard force source device for cam type independent weight loading and unloading |
| CN102879073A (en) * | 2012-10-18 | 2013-01-16 | 台衡精密测控(昆山)股份有限公司 | Electronic balance with internal calibrating weight structure |
| CN105157796A (en) * | 2015-08-17 | 2015-12-16 | 上海越平科学仪器（苏州）制造有限公司 | Electronic balance |
| CN110196201A (en) * | 2018-02-27 | 2019-09-03 | 梅特勒-托利多(常州)精密仪器有限公司 | High-precision weighing system and weighing method, thermogravimetric analyzer and storage medium |
-
2007
- 2007-01-31 CN CN 200720066900 patent/CN200996866Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192814A (en) * | 2010-03-19 | 2011-09-21 | 周长明 | Dead weight type standard force source device for cam type independent weight loading and unloading |
| CN102192814B (en) * | 2010-03-19 | 2012-11-07 | 周长明 | Dead weight type standard force source device for cam type independent weight loading and unloading |
| CN102879073A (en) * | 2012-10-18 | 2013-01-16 | 台衡精密测控(昆山)股份有限公司 | Electronic balance with internal calibrating weight structure |
| CN105157796A (en) * | 2015-08-17 | 2015-12-16 | 上海越平科学仪器（苏州）制造有限公司 | Electronic balance |
| CN105157796B (en) * | 2015-08-17 | 2017-08-29 | 上海越平科学仪器（苏州）制造有限公司 | Electronic balance |
| CN110196201A (en) * | 2018-02-27 | 2019-09-03 | 梅特勒-托利多(常州)精密仪器有限公司 | High-precision weighing system and weighing method, thermogravimetric analyzer and storage medium |
| CN110196201B (en) * | 2018-02-27 | 2022-03-29 | 梅特勒-托利多(常州)精密仪器有限公司 | High-precision weighing system and weighing method, thermogravimetric analyzer and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN200996866Y (en) | Self-aligning device of electronic balance | |
| CN201111633Y (en) | Wire bar bending tester | |
| CN101994807A (en) | Lever type dynamic output device | |
| CN201392262Y (en) | Fatigue strength tester for brake | |
| CN209078580U (en) | A kind of automatic carrier | |
| CN202599862U (en) | Automatic lamp inspection machine | |
| CN215149104U (en) | Four-axis rotary manipulator | |
| CN213516319U (en) | Executor positioner is used in electric actuator test | |
| CN200996437Y (en) | Transmission-ratio speed reducer | |
| CN108533745A (en) | A kind of executing agency for automatically switching transfer gear box | |
| CN2903941Y (en) | Internal self-correcting apparatus | |
| CN113390356A (en) | Full-automatic multi-parameter measuring equipment and using method thereof | |
| CN219061099U (en) | Elevator leveling positioning device and stereo garage | |
| CN206919872U (en) | Connector device matches somebody with somebody test machine motor clamp system | |
| CN219245568U (en) | Swing arm filling device | |
| CN220581665U (en) | Auxiliary device for oil change of wind power gear box | |
| CN218199211U (en) | Bottom longitudinal movement type box unloading structure | |
| CN220646690U (en) | Gear with changeable center distance | |
| CN215100604U (en) | Product orientation and position conversion device | |
| CN209690469U (en) | For motor to the quick replacement device for dragging test | |
| CN215133529U (en) | Driving mechanism of capsule filling machine | |
| CN109047484A (en) | A kind of arrangements for automotive doors stamping die pedestal facilitating modulus | |
| CN213236257U (en) | Torsion spring over-force protection mechanism of electric valve actuator | |
| CN219224066U (en) | Sealing performance testing device for plunger pump body | |
| CN219262828U (en) | Mechanism with hydraulic cylinder driving shaft for rotation and power supply device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20071226 Termination date: 20130131 |