CN203606021U - Independent smooth loading and unloading device of dead weight norm force machine - Google Patents
Independent smooth loading and unloading device of dead weight norm force machine Download PDFInfo
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- CN203606021U CN203606021U CN201320718547.6U CN201320718547U CN203606021U CN 203606021 U CN203606021 U CN 203606021U CN 201320718547 U CN201320718547 U CN 201320718547U CN 203606021 U CN203606021 U CN 203606021U
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- lifter plate
- dead weight
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Abstract
The utility model provides an independent smooth loading and unloading device of a dead weight norm force machine. The device is composed of main parts comprising a supporting seat, a servo motor, a worm turbine decelerator, a lifter plate, a screw rod, a ball screw-nut and the like. Aiming at problems existing in the prior art, problems that in loading and unloading processes of the present dead weight norm force machine, impact on weights is large, the force value loading and unloading curve is not smooth, the sensor calibration precision is low, and retracing phenomena are liable to appear in the loading and unloading processes are overcome.
Description
Technical field
The utility model relates to a kind of detection test and caliberating device of sensor, more specifically says the independent discharge mechanism that smoothly adds of a kind of dead weight type safe primary force standard machine.
Background technology
Dead weight type safe primary force standard machine is the testing apparatus of highest ranking in power value metrology and measurement, other metrology and measurement instruments must be confirmed its performance parameter through its demarcation, and therefore the performance of dead weight type safe primary force standard machine has determined a level that country's metering industry can reach.And in dead weight type safe primary force standard machine test process, the quality that counterweight adds unloading situation directly has influence on the measuring accuracy of dead weight type safe primary force standard machine.From the current situation of existing dead weight type safe primary force standard machine, although that has realized counterweight independently adds unloading, that has improved counterweight adds unloading efficiency, but still also have a lot of problems not to be resolved, for example counterweight add in uninstall process impact large, power value add that unloading curve is unsmooth, stability is not high, loading accuracy is low, on sensor accuracy impact large and add uninstall process in easily there is " flyback " phenomenon etc.
Summary of the invention
The problem that the present utility model exists for prior art, effectively overcome in prior art counterweight add in uninstall process, impact large, power value add that unloading curve is unsmooth, stability is not high, loading accuracy is low, on problems such as sensor accuracy impact are large, and effectively avoided adding " flyback " phenomenon easily occurring in uninstall process, provide the independent level and smooth counterweight of a kind of dead weight type safe to add discharge mechanism.
Dead weight type safe primary force standard machine is independent smoothly adds discharge mechanism, and its structure mainly comprises lifter plate, screw mandrel, worm screw reducer of turbodrill, guide plate, supporting base, servomotor and ball screw nut; Servomotor and worm screw reducer of turbodrill are arranged on above supporting base and are in same level; Guide plate is fixed on above worm screw reducer of turbodrill; Lifter plate moves up and down together with being connected with ball screw nut; Ball screw nut is connected with screw mandrel and moves on screw mandrel; The axis of guide is fixed on lifter plate and is moved up and down with lifter plate by round nut; Linear bearing is arranged on guide plate two ends and is symmetrically distributed; The axis of guide matches by guide plate and with linear bearing.
Independently smoothly add on discharge mechanism at dead weight type safe primary force standard machine, the two ends that flexible member is arranged on lifter plate are symmetrically distributed; Top cover is arranged on flexible member upper support counterweight and moves, and in top cover, front and back are symmetrically installed with dog screw and are fixed on lifter plate; Travel switch collision block is fixed on lifter plate and moves up and down with lifter plate, and its travel switch is fixed on supporting base.
Accompanying drawing explanation
Fig. 1 is the utility model perspective view.
Fig. 2 is the utility model partial structurtes schematic diagram.
Fig. 3 is the utility model forward sight structural representation.
Fig. 4 is the utility model plan structure schematic diagram.
Fig. 5 is A-A cut-open view in accompanying drawing 4.
Specific embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is specifically described.
Fig. 1 and Fig. 2 are the independent perspective view that smoothly adds discharge mechanism of dead weight type safe primary force standard machine.
In structure shown in Fig. 1, it is upper that worm screw reducer of turbodrill (6) and servomotor (10) are arranged on supporting base (9), by shaft coupling (16), the moment of torsion of servomotor (10) is delivered on worm screw reducer of turbodrill (6); Output shaft using screw mandrel (5) as speed reduction unit is installed ball screw nut (17) on screw mandrel (5), rotatablely moving of screw mandrel (5) is changed into the rectilinear motion up and down of ball screw nut (17).
Lifter plate (2) is arranged on to ball screw nut (17) upper, lifter plate (2) does upper and lower rectilinear motion with ball screw nut (17); Guide plate (7) is fixed on above worm screw reducer of turbodrill.
At lifter plate (2) symmetrical two axis of guides in two ends (3), the axis of guide (3) is fixed on lifter plate (2) two ends by round nut (18); Symmetrical two linear bearings (8) of installing at guide plate (7) two ends, the axis of guide (3) passes through guide plate (7) and coordinates with linear bearing (8), and the axis of guide (3) moves up and down with lifter plate (2).
Flexible member (14) symmetry is arranged on the two ends of lifter plate (2) and passes the axis of guide (3), top cover (1) is arranged on flexible member (14), move up and down with lifter plate (2) together with spring, go up two dog screws of each installation (15) and be fixed on lifter plate (2) in top cover (1).Below in conjunction with view, the uninstall process that adds of counterweight is described.
On-test, adds when counterweight, and the weight of whole counterweight is all carried on jacking gear, with the pallet of center suspension rod from.Signal of computer input, control system control servomotor 10 rotates, motor drives worm screw reducer of turbodrill 6 to rotate by shaft coupling 16, turboshaft is screw mandrel 5, the ball nut 17 being connected on screw mandrel 5 rotates and moves down with screw mandrel 5, be arranged on lifter plate 2 on ball nut 17 ring flanges also along with ball nut 17 moves down, be fixed on lifter plate 2 axis of guide 3 above also along with lifter plate 2 moves down by round nut 18, the axis of guide 3 interacts with the guide plate 7 being arranged on worm screw reducer of turbodrill 6, overcome the torque that lifter plate 2 is subject in decline process, in the time that counterweight starts to contact with center suspension rod pallet, counterweight loads and starts, be arranged on lifter plate 2 flexible member 14 above and start to recover distortion, top cover 1 is arranged on flexible member 14 and directly contacts with counterweight, and and lifter plate 2 between leave a segment distance, when lifter plate 2 drops to certain distance, being arranged on lifter plate 2 travel switch collision block 13 above contacts with the travel switch 12 being fixed on supporting base 9, servomotor 10 stops operating, lifter plate 2 stops moving down.Now, complete the loading of counterweight.
Counterweight is laid down in off-test, and now the total weight of counterweight is carried on the pallet of center suspension rod.Signal of computer input, control system control servomotor 10 reverses, motor drives screw mandrel 5 to reverse by worm screw reducer of turbodrill 6, the ball nut 17 being arranged on screw mandrel 5 drives lifter plate 2 to start to move up, top cover 1 starts to contact with counterweight, flexible member 14 starts compression deformation, in the time that lifter plate 2 rises to certain altitude, now counterweight total weight is loaded on jacking gear, in the time that travel switch collision block 13 contacts with travel switch 12, servomotor 10 stops operating, and on lifter plate 2 stops, moving, and completes the unloading of counterweight.
The foregoing is only one of the utility model preferred embodiment, it is pointed out that those of ordinary skills not departing under the prerequisite of the utility model use principle, can also do some modification and improvement, also should be considered as the utility model protection domain.
Claims (2)
1. the independent discharge mechanism that smoothly adds of dead weight type safe primary force standard machine, it comprises lifter plate (2), screw mandrel (5), worm screw reducer of turbodrill (6), guide plate (7), supporting base (9), servomotor (10) and ball screw nut (17), it is characterized in that: servomotor (10) and worm screw reducer of turbodrill (6) are arranged on supporting base (9) above and are in same level; Guide plate (7) is fixed on worm screw reducer of turbodrill (6) above; Lifter plate (2) moves up and down together with being connected with ball screw nut (17), and ball screw nut (17) is connected and moves on screw mandrel with screw mandrel (5); The axis of guide (3) is fixed on lifter plate (2) by round nut (18) and above moves up and down with lifter plate (2); Linear bearing (8) is arranged on guide plate (7) two ends and is symmetrically distributed; The axis of guide (3) matches by guide plate (7) and with linear bearing (8).
2. smoothly add discharge mechanism according to dead weight type safe primary force standard machine claimed in claim 1 is independent, it is characterized in that: the two ends that flexible member (14) is arranged on lifter plate (2) are symmetrically distributed; Top cover (1) is arranged on flexible member (14) upper support counterweight and moves, and before and after top cover (1) is upper, is symmetrically installed with dog screw (15) and is fixed on lifter plate (2); Travel switch collision block (13) is fixed on lifter plate (2) and above moves up and down with lifter plate (2), and travel switch (12) is fixed on supporting base (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320718547.6U CN203606021U (en) | 2013-11-13 | 2013-11-13 | Independent smooth loading and unloading device of dead weight norm force machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320718547.6U CN203606021U (en) | 2013-11-13 | 2013-11-13 | Independent smooth loading and unloading device of dead weight norm force machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203606021U true CN203606021U (en) | 2014-05-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320718547.6U Expired - Fee Related CN203606021U (en) | 2013-11-13 | 2013-11-13 | Independent smooth loading and unloading device of dead weight norm force machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN203606021U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106441539A (en) * | 2016-09-18 | 2017-02-22 | 南京航空航天大学 | Fast weighing balance for logistics and method |
-
2013
- 2013-11-13 CN CN201320718547.6U patent/CN203606021U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106441539A (en) * | 2016-09-18 | 2017-02-22 | 南京航空航天大学 | Fast weighing balance for logistics and method |
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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 |
Granted publication date: 20140521 Termination date: 20141113 |
|
| EXPY | Termination of patent right or utility model |