CN102735322B - Load loading device of mechanics measuring instrument - Google Patents
Load loading device of mechanics measuring instrument Download PDFInfo
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- CN102735322B CN102735322B CN201210181533.5A CN201210181533A CN102735322B CN 102735322 B CN102735322 B CN 102735322B CN 201210181533 A CN201210181533 A CN 201210181533A CN 102735322 B CN102735322 B CN 102735322B
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Abstract
The invention provides a load loading device of a mechanics measuring instrument. The load loading device is mainly characterized in that a weighing disc is connected with a weighing device; a loading disc is fixedly connected with a moving mechanism; the moving mechanism is fixedly connected with a loading device platform; the weighing disc and the loading disc are hollow; when the weighing disc and the loading disc are mutually overlapped, hollow structures of the weighing disc and the loading disc are complementary with each other to guarantee that the two discs are not contacted with each other; and the up-down and horizontal movement and rotation of the loading disc can be realized through the moving mechanism. When the loading disc is located just above the weighing disc, and the loading disc and the weighing disc can be alternatively arranged, the loading disc repeatedly moves up and down, so that a load can completely realize recursion. The device disclosed by the invention has the advantages that the alternative loading of a plurality of loads can be realized; the loads can be repeatedly and alternatively loaded in a measuring process; and mechanical loading can be realized without a manual manner, and further, the influences of the manual loading on measuring accuracy are avoided. Through an automatic load recursion operation method, the complete recursion of the load loading can be realized, and thus the measuring accuracy of products is improved.
Description
Technical field
The present invention relates to the load charger of the mass metrology utensils such as the load charger of mechanics measurement instrument, particularly balance, quality comparer.
Background technology
At mechanics particularly in mass metrology process, and in the calibrating of measurement instrument itself, calibration process.Need to by standard and tested device or separately standard repeatedly load on measurement instrument, as offered load on the scale pan of balance or quality comparer etc., as standard or tested counterweight.At mechanics known in the art, particularly in mass metrology utensil, generally there is no special load charger, or charger only has single load load capability, can not realize multi-load and alternately load.In metering process necessary repeatedly, alternately loading procedure is to adopt artificial mode to realize.But in high-precision measuring process, by artificial mode, load and replace the accuracy of measuring that load meeting affects measurement instrument greatly.Because once artificial disturbance, need recovery for a long time, and may be longer than the time of a metering process this release time.And its impact may be difficult to discover.In high-precision measuring process, the putting position loading on weighing plate also has a great impact result, requires load should be placed in weighing plate center simultaneously, and each putting position should be fixed.And artificial load is put and is difficult to realize such requirement.So so single charger is difficult to meet the requirement of high-precision measuring.
Summary of the invention
The object of the invention is the deficiency existing in above-mentioned technology, a kind of load charger of mechanics measurement instrument is provided, as the load charger of the mechanics measurement instruments such as balance, quality comparer.
The object of the present invention is achieved like this, comprise weighing plate, loading disc and travel mechanism, it is characterized in that weighing plate is connected with meausring apparatus, in order to accept to be weighed load, loading disc is fixedly connected with travel mechanism, travel mechanism is fixedly connected with charger platform, weighing plate and loading disc are Openworks shape, and the structure of the hollow out of weighing plate and loading disc is mutually complementary, when weighing plate and loading disc superpose mutually, its engraved structure guarantees mutually not contact between two dishes, by travel mechanism's loading disc, can realize up and down, the movement of level and rotation, described meausring apparatus refers to that mechanics measurement instrument comprises: claim, balance, quality comparer, torsion Standard Machine, force standard machines.
In the situation of weighing plate and the coincidence of loading disc geometrical central axis, they can overlap on together mutually, guarantee that loading disc can move up and down, assurance loading disc can be realized at least two kinds of different stations: a kind of is that weighing plate upper disk surface is higher, and loading disc upper disk surface is lower, when there is load their tops, load meeting is carried on weighing plate, and another kind is that weighing plate upper disk surface is lower, and loading disc upper disk surface is higher, when there is load their tops, load meeting is placed on loading disc.
When loading disc is positioned at raise-position, when load is positioned on loading disc, loading disc can move, load can be removed from weighing plate top, also the load outside weighing plate can be moved to above weighing plate, the load that so just can realize mechanization loads and replaces, and does not need manual operation.
Before will weighing load, need the barycenter of proof load to be positioned at the geometric center of weighing plate, this device has: middle operation method is returned in load automatically, the method be when loading disc be positioned at can be overlapping with weighing plate position, loading disc moves to directly over weighing plate, be that loading disc central shaft moves to while overlapping with weighing plate central shaft, at first because the mobile load that needs is positioned on loading disc, but because being is manually placed on loading disc, so can portative barycenter not being positioned at the central shaft of loading disc and weighing plate is in geometric center, during now load is not returned.At this moment loading disc is moved down, load is slowly loaded on weighing plate, due to departing from of its barycenter, the direction of weighing plate in can returning to load barycenter swings, move center while helping load barycenter non-loaded with respect to weighing plate, make load once return middle motion, the displacement of at this moment load in having carried out equally once returning with respect to loading disc.Now loading disc is risen, load is got back on loading disc again again, but now load has been moved to center with respect to the position on loading disc before.And along with weighing plate is left in load, weighing plate swings go back to again the flat horizontal position of original barycenter, the movement during load has also occurred once to return with respect to weighing plate.At this moment complete an automatic load and returned middle method operation.
But because load is generally artificial loading, so in most cases side-play amount can be larger.Because two dishes are when overlapping on together, the gap between them is fixed, and this gap is less with respect to the side-play amount of load.Namely loading disc elevating movement is in load can not being returned to be completely that load center of gravity overlaps with weighing plate central shaft, in order to make during load can return completely, to return middle motion repeatedly to move repeatedly.Arrive and automatically return middle needs will automatically return middle motion repeatedly to move 2-5 time, for title, a day gentle mass ratio, compared with device, take 3 times as optimum condition.
The invention has the beneficial effects as follows: special load charger, can realize multi-load and alternately load, can be repeatedly in metering process, offered load alternately, without adopting artificial mode to load, realize mechanization and load, avoided the impact of artificial loading on the accuracy of measuring.By load, automatically return middle operation method, can realize during load loads and to return completely, improve the accuracy of measuring of product.
accompanying drawing explanation:
Fig. 1 is the weighing plate of many lobes of the present invention type hollow out and the charger schematic diagram of loading disc
Fig. 2 is the circular weighing plate of vertical bar type hollow out of the present invention and the charger schematic diagram of loading disc
Fig. 3 is the weighing plate of many lobes of the present invention type hollow out and the loading disc structural representation after overlapping
Fig. 4 is the circular weighing plate of vertical bar type hollow out of the present invention and the loading disc structural representation after overlapping
Fig. 5 is the square weighing plate of vertical bar type hollow out of the present invention and the loading disc structural representation after overlapping
Fig. 6 is the schematic diagram that loading disc of the present invention is positioned at the load maintainer of weighing plate top
Fig. 7 is the schematic diagram that loading disc of the present invention is positioned at the load maintainer of weighing plate below
Fig. 8 is the schematic diagram that in manual loading load unbalance loading situation of the present invention, loading disc is positioned at raise-position
Fig. 9 is the schematic diagram after loading disc decline in manual loading load unbalance loading situation of the present invention
Figure 10 is the schematic diagram of loading disc after again rising in manual loading load unbalance loading situation of the present invention
embodiment:
below in conjunction with accompanying drawing, the present invention will be further described.From Fig. 1 to Figure 10: preferably enumerated the hollow out pattern of two kinds of weighing plates 1 and loading disc 2, its selection has the representativeness of mechanism required for the present invention, but and not exclusively cover likely pattern of institute in the claims in the present invention.Just with optimal way, claim content is illustrated.
Fig. 1 has provided a kind of the have weighing plate of many lobes type hollow out and the charger schematic diagram of loading disc.Many lobes type hollow out weighing plate 1a is connected with meausring apparatus 5, and many lobes type hollow out weighing plate 1a can do small size swing according to the load 4 centroid position differences that load on it.Many lobes type hollow out loading disc 2aYu travel mechanism 3 is connected in a fixed manner.Travel mechanism 3 make loading disc can be up and down, move horizontally or rotate.
Fig. 2 has provided another kind of the have weighing plate of stripe shape hollow out and the charger schematic diagram of loading disc.Stripe shape hollow out weighing plate 1b is connected with meausring apparatus 5, and stripe shape hollow out weighing plate 1b can do small size swing according to the load 4 centroid position differences that load on it.Stripe shape hollow out loading disc 2bYu travel mechanism 3 is connected in a fixed manner.Travel mechanism 3 make loading disc upper and lower, move horizontally or rotate.
Fig. 3 provided the weighing plate of many lobes type hollow out and the plan structure schematic diagram of loading disc after overlapping, and the openwork part 6a of many lobes type hollow out weighing plate 1a and many lobes type hollow out loading disc 2a is many lobes type.After two dishes are overlapping, the entity of many lobes type hollow out weighing plate 1a is positioned at the hollow out position of many lobes type hollow out loading disc 2a completely.The entity of as much lobe type hollow out loading disc 2a is positioned at the hollow out position of many lobes type hollow out weighing plate 1a completely, guarantees not to be in contact with one another between many lobes type hollow out weighing plate 1a and many lobes type hollow out loading disc 2a.
Fig. 4 has provided the circular weighing plate of stripe shape hollow out and the plan structure schematic diagram of loading disc after overlapping, and the openwork part 6b of the circular weighing plate 1b of stripe shape hollow out and stripe shape hollow out loading disc 2b is stripe shape.After two dishes are overlapping, the entity of the circular weighing plate 1b of stripe shape hollow out is positioned at the hollow out position of stripe shape hollow out loading disc 2b completely.With the entity of spline Type hollow out loading disc 2b, be positioned at the hollow out position of the circular weighing plate 1b of stripe shape hollow out completely, guarantee not to be in contact with one another between the circular weighing plate 1b of stripe shape hollow out and stripe shape hollow out loading disc 2b.
Fig. 5 has provided the square weighing plate of stripe shape hollow out and the plan structure schematic diagram of loading disc after overlapping, and the openwork part 6c of the square weighing plate 1c of stripe shape hollow out and stripe shape hollow out loading disc 2c is stripe shape.After two dishes are overlapping, the entity of the square weighing plate 1c of stripe shape hollow out is positioned at the hollow out position of stripe shape hollow out loading disc 2c completely.Entity with spline Type hollow out loading disc 2c guarantees not to be in contact with one another between the square weighing plate 1c of stripe shape hollow out and stripe shape hollow out loading disc 2c completely in the hollow out position of the square weighing plate 1c of stripe shape hollow out.
In Fig. 6, provided the side-looking structural representation that loading disc 2 upper disk surfaces are positioned at weighing pan 1 top.Now load 4 is positioned on loading disc 2, by travel mechanism 3, loading disc 2 and load 4 can be moved and is made load 4 remove weighing plate 1 top.Also the load outside weighing plate 1 can be moved into above weighing plate.Reach the object that load 4 automatically loads and replaces.
In Fig. 7, provided the side-looking structural representation that loading disc 2 upper disk surfaces are positioned at weighing pan 1 below, now load 4 is positioned on weighing plate 1, loading disc 2 does not contact with load 4 with weighing plate 1, guarantees power not to be passed to weighing plate 1, guarantees that meausring apparatus 5 can carry out accurate-metering.
Fig. 8 provided when load 4 manual load on loading disc 2 after its barycenter depart from the situation at loading disc center.In Fig. 8, having provided loading disc 2 has moved to above weighing plate 1.Now load 4 has departed from weighing plate 1 and loading disc 2 centers.
Fig. 9 has provided after Fig. 8 situation, and loading disc 2 declines, and load 4 is carried on weighing plate 1, and loading disc is left in load 4, and due to the effect of gravity, weighing plate 1 and load 4 direction in relatively returning to barycenter swings.Now load 4 with respect to the position of loading disc 2 during compared with Fig. 8 more near loading disc 2 centers.
Figure 10 has provided after Fig. 9 situation, and loading disc 2 rises, and weighing plate 1 has been left in load 4, gets back on loading disc 2.Now weighing plate 1, because barycenter recovers, returns to equilibrium position under the effect of gravity, like this load 4 with respect to the position of weighing plate 1 close weighing plate 2 centers more during compared with Fig. 8 and Fig. 9.
By use state represented in Fig. 8 to Figure 10, gap between known weighing plate 1 and loading disc 2 is limited, during the lifting process of a loading disc 2 can not guarantee that load in any case 4 can be returned completely, so need to repeatedly repeat the motion process that Fig. 8 to Figure 10 provides, by loading disc 2 oscilaltions repeatedly, load 4 can be moved to a segment distance to weighing plate 1 center, until load 4 barycenter move to weighing plate center position at every turn.Needing to-and-fro movement 2-5 time, is optimum condition 3 times for balance and quality comparer.
Claims (1)
1. the load charger of a mechanics measurement instrument, comprise: weighing plate, loading disc and travel mechanism, it is characterized in that weighing plate is connected with meausring apparatus, loading disc is fixedly connected with travel mechanism, travel mechanism is fixedly connected with charger platform, weighing plate and loading disc are Openworks shape, and the structure of the hollow out of weighing plate and loading disc is mutually complementary, when weighing plate and loading disc superpose mutually, its engraved structure guarantees mutually not contact between two dishes, by travel mechanism's loading disc, can realize up and down, the movement of level and rotation, its using method is that middle operation method is returned in load automatically, after directly over loading disc moves to weighing plate, lifting loading disc repeatedly, the method is to be positioned at directly over weighing plate when loading disc, position that can be overlapping, loading disc central shaft moves to while overlapping with weighing plate central shaft, during load is not returned, at this moment loading disc is moved down, load is slowly loaded on weighing plate, loading disc being risen to load gets back on loading disc again, complete an automatic load and return middle method operation, in order to make during load can return completely, return middle motion repeatedly to move repeatedly, the in the situation that of weighing plate and the coincidence of loading disc geometrical central axis, they can overlap on together mutually, guarantee that loading disc can move up and down, assurance loading disc can be realized at least two kinds of different stations: a kind of is that weighing plate upper disk surface is higher, and loading disc upper disk surface is lower, when there is load their tops, load meeting is carried on weighing plate, and another kind is that weighing plate upper disk surface is lower, and loading disc upper disk surface is higher, when there is load their tops, load meeting is placed on loading disc, when loading disc is positioned at raise-position, when load is positioned on loading disc, loading disc can move, load can be removed from weighing plate top, also the load outside weighing plate can be moved to above weighing plate, the load that so just can realize mechanization loads and replaces, and does not need manual operation, for arriving, automatically returning middle needs will automatically return middle motion repeatedly to move 2-5 time, is optimum condition 3 times for title, a day gentle mass ratio compared with device.
2. the load charger of a kind of mechanics measurement instrument according to claim 1, what it is characterized in that described meausring apparatus refers to is mechanics measurement instrument, title, balance, quality comparer, torsion Standard Machine, force standard machines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210181533.5A CN102735322B (en) | 2012-06-05 | 2012-06-05 | Load loading device of mechanics measuring instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210181533.5A CN102735322B (en) | 2012-06-05 | 2012-06-05 | Load loading device of mechanics measuring instrument |
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| CN102735322A CN102735322A (en) | 2012-10-17 |
| CN102735322B true CN102735322B (en) | 2014-09-03 |
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| CN201210181533.5A Active CN102735322B (en) | 2012-06-05 | 2012-06-05 | Load loading device of mechanics measuring instrument |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3905433A (en) * | 1972-01-24 | 1975-09-16 | Guinness Son & Co Ltd A | Weigh devices |
| US4509610A (en) * | 1981-10-28 | 1985-04-09 | Yamato Scale Company, Limited | Weighing device of load cell type |
| CN2406232Y (en) * | 1999-06-25 | 2000-11-15 | 陕西省计量测试研究所 | Micro-motion isolation mechanism of top weigher |
| US6420666B1 (en) * | 1999-07-08 | 2002-07-16 | Mettler-Toledo Gmbh | Method of weighing a load on a balance and apparatus for performing the method |
| CN1239354C (en) * | 2000-03-17 | 2006-02-01 | I·M·A·工业机械自动装置股份公司 | Unit for advancing containers along conveying line and for transferring containers from conveying line to weighing station and vice-versa |
| CN101470024A (en) * | 2007-12-25 | 2009-07-01 | 清华大学 | Electronic balance weighing auxiliary device for hydrogen cylinder |
-
2012
- 2012-06-05 CN CN201210181533.5A patent/CN102735322B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3905433A (en) * | 1972-01-24 | 1975-09-16 | Guinness Son & Co Ltd A | Weigh devices |
| US4509610A (en) * | 1981-10-28 | 1985-04-09 | Yamato Scale Company, Limited | Weighing device of load cell type |
| CN2406232Y (en) * | 1999-06-25 | 2000-11-15 | 陕西省计量测试研究所 | Micro-motion isolation mechanism of top weigher |
| US6420666B1 (en) * | 1999-07-08 | 2002-07-16 | Mettler-Toledo Gmbh | Method of weighing a load on a balance and apparatus for performing the method |
| CN1239354C (en) * | 2000-03-17 | 2006-02-01 | I·M·A·工业机械自动装置股份公司 | Unit for advancing containers along conveying line and for transferring containers from conveying line to weighing station and vice-versa |
| CN101470024A (en) * | 2007-12-25 | 2009-07-01 | 清华大学 | Electronic balance weighing auxiliary device for hydrogen cylinder |
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| CN102735322A (en) | 2012-10-17 |
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