CN205120309U - Barycenter measuring device of long and thin part - Google Patents
Barycenter measuring device of long and thin part Download PDFInfo
- Publication number
- CN205120309U CN205120309U CN201520941106.1U CN201520941106U CN205120309U CN 205120309 U CN205120309 U CN 205120309U CN 201520941106 U CN201520941106 U CN 201520941106U CN 205120309 U CN205120309 U CN 205120309U
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- CN
- China
- Prior art keywords
- mainboard
- measuring device
- elongated member
- eccentric wheel
- knife
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses a barycenter measuring device of long and thin part. Barycenter measuring device of long and thin part includes bottom plate, dress two collateral branch seats of the left and right sides on the bottom plate, dress axle on controlling two collateral branch seats to and the dress is at the epaxial eccentric wheel of controlling between two collateral branch seats that is located, about two collateral branch seat inboards respectively be equipped with a side link plate, the edge of a knife on a main part location two collateral branch seat tops about is equipped with at every side link plate top, two side link plates bottoms link to each other through the layer board is fixed, lie in on the eccentric wheel be equipped with the mainboard that is used for placing the bar of long and thin part on the layer board, the one end lower part of this mainboard is equipped with and is used for measuring the top of mainboard tip power F, in the level adjustment mechanism that the other end of mainboard was equipped with adjustment mainboard levelness. The utility model discloses easily fast speed adjusting flattening weighing apparatus, measurement of efficiency is improved to convenient the measurement.
Description
Technical field
The utility model relates to a kind of center mass measuring device of elongated member, is specially adapted to being convenient for measuring of the right cylinder aircraft centroid position that weight is large, length is long.
Background technology
The centroid position of such as flyer affects self flight path, and therefore the measurement of centroid position is most important for spacecraft.
The device utilizing balance principle to adopt out-of-balance force moments method to measure centroid position at present all adopts the structure of edge of a knife fulcrum under center of gravity, this kind of structure is for larger object, especially, before measuring the centroid position of the right cylinder aircraft that weight is large, length is long, the balance of device is difficult to adjustment.
Utility model content
The utility model aims to provide a kind of center mass measuring device of elongated member, the edge of a knife fulcrum of this center mass measuring device is on centroid position measurement mechanism center of gravity, when utilizing center of gravity below back shaft, if depart from vertical direction, make a concerted effort to point to equilibrium position, make it the ultimate principle returning balance, realize measuring the elongated member that weight is large, length is long, before the centroid position as right cylinder aircraft, whole device is easy to rapid adjustment balance, be convenient for measuring, improve and measure efficiency.
To achieve these goals, the technical scheme that the utility model adopts is:
A center mass measuring device for elongated member, its design feature comprises base plate, is contained in the collateral seat in two, left and right on base plate, is contained in the axle on two the collateral seats in left and right, and is contained in the eccentric wheel on axle between the collateral seat in two, left and right; A side link plate is respectively provided with inside two the collateral seats in left and right, the edge of a knife of an agent localization at two the side holder top in left and right is equipped with at link plate top, each side, be fixedly linked by supporting plate bottom two side link plates, the described supporting plate be positioned on eccentric wheel is provided with the mainboard of the bar shaped for placing elongated member, the bottom, one end of this mainboard is equipped with for measuring the top of mainboard End Force F, and the horizontal adjusting mechanism of adjustment mainboard levelness is housed at the other end of mainboard.
According to embodiment of the present utility model, can also do further to optimize to the utility model, the technical scheme below for being formed after optimization:
The back-up block for supporting described elongated member two ends of described mainboard is equipped with in order to more uniformly support elongated parts.Thus, elongated member is supported on the back-up block of mainboard, conveniently assemble and disassemble.
As a kind of concrete adjusting mechanism, described horizontal adjusting mechanism comprises the hanging block being fixed on mainboard end, is contained in screw rod horizontally disposed in hanging block, and is contained at least one counterweight on screw rod.Thus, the counterweight on rotary screw, can adjust the position of counterweight, thus ensures equilibrium state.Meanwhile, also can increase and decrease counterweight quantity to realize.
Preferably, the spirit-leveling instrument of display mainboard levelness described mainboard is equipped with.When the bubble of spirit-leveling instrument is positioned at center, mainboard level.
Preferably, link plate top, described side has pilot hole, and described side holder top has the V-shaped groove of the location edge of a knife, and described blade portion is placed in described pilot hole.When the edge of a knife drops on side holder top, the point of a knife of the edge of a knife and V-shaped groove uniform contact.
The installation site of described supporting plate is eccentric wheel end face when being positioned at lower dead center, and supporting plate and eccentric wheel end face have gap, edge of a knife lower surface and described collateral seat tip contact; When eccentric wheel end face is positioned at top dead centre, supporting plate contacts with eccentric wheel end face, and edge of a knife lower surface is separated with described side holder top.
Conveniently rotating eccentricity wheel, described side support outer is provided with the spanner for being taken turns by axle rotating eccentricity.
Compared with prior art, the beneficial effects of the utility model are: the edge of a knife fulcrum of center mass measuring device of the present utility model is on centroid position measurement mechanism center of gravity, when utilizing center of gravity below back shaft, if depart from vertical direction, make a concerted effort to point to equilibrium position, make it the ultimate principle returning balance, achieve and measure the elongated member that weight is large, length is long, before the centroid position as right cylinder aircraft, whole device is easy to rapid adjustment balance, be convenient for measuring, improve measurement efficiency.
Below in conjunction with drawings and Examples, the utility model is further elaborated.
Accompanying drawing explanation
Fig. 1 is the structure principle chart of the utility model embodiment;
Fig. 2 is A-A cut-open view of Fig. 1;
Fig. 3 is the vertical view of Fig. 1.
Embodiment
The cylindrical aircraft center mass measuring device of fulcrum type in one, as illustrated in fig. 1 and 2, be made up of following part: top 1, nut 2, mainboard 3, back-up block 4, base plate 5, spanner 6, collateral seat 7, the edge of a knife 8, bolt 9, pin 10, spirit-leveling instrument 11, screw 12, screw rod 13, hanging block 14, counterweight 15, holding screw 16, side link plate 17, supporting plate 18, axle 19, eccentric wheel 20.During installation, axle 19, eccentric wheel 20 are arranged on the collateral seat 7 of two pieces, more collateral for two pieces seat 7 is connected as one with base plate 5 by bolt 9, pin 10.The edge of a knife 8 is pressed into side link plate 17 upper hole, locks with holding screw 16; In the locating slot of difference inserting side, supporting plate 18 two ends link plate 17, fix with screw 12, pin 10; Back-up block 4, spirit-leveling instrument 11 screw 12 is fixed on mainboard 3, and left end screw rod 13 is arranged in hanging block 14, and hanging block 14 is connected to mainboard 3 right-hand member by screw 12, and nut 2 by being threaded into screw rod 13, then is arranged on mainboard 3 by top 1 by counterweight 15.Mainboard 3 is same with supporting plate 18 adopts screw 12, pin 10 connects, and is then put down gently by the both sides edge of a knife 8 in the V-shaped groove on the collateral seat of two pieces respectively; The described edge of a knife 8 lower surface can along with the rotation of eccentric wheel 20 with described collateral seat 7 tip contact or be separated.
During use, spanner 6 is enclosed within axle 19 front end, rotates counterclockwise spanner 6 and ensure that eccentric wheel 20 does not contact with supporting plate 18 at lowest order, rotate counterweight 15 and adjust measurement mechanism, when the bubble of the spirit-leveling instrument 11 on mainboard 3 is at center, measurement mechanism is in equilibrium state.Now clockwise direction rotary spanner 6, eccentric wheel 20 is contacted with supporting plate 18, the edge of a knife 8 departs from the V-shaped groove on collateral seat, then elongated member 21 is placed on the back-up block 4 on mainboard 3, by counterclockwise rotating, eccentric wheel 20 and supporting plate 18 are departed from spanner 6 again, make the point of a knife uniform contact with the edge of a knife 8 at the bottom of the V-shaped groove of collateral seat 7, now centroid position is not at fulcrum, so top place can record downward force F, utilize the top 1 power F recorded, and the gravity of known elongated member 21 is G, top 1 to the vertical range L1 of the edge of a knife 8, the vertical range L2 of barycenter O to the edge of a knife 8 can be calculated, simultaneously according to F*L1=G*L2, barycenter O to two edges of a knife point of a knife between the vertical range L2=F*L1/G of line, thus determine the position of barycenter O, whole easy and simple to handle, accurately, rapidly.
The content that above-described embodiment is illustrated should be understood to these embodiments only for being illustrated more clearly in the utility model, and be not used in restriction scope of the present utility model, after having read the utility model, the amendment of those skilled in the art to the various equivalent form of value of the present utility model has all fallen into the application's claims limited range.
Claims (7)
1. the center mass measuring device of an elongated member, it is characterized in that, comprise base plate (5), be contained in two, the left and right collateral seat (7) on base plate (5), be contained in the axle (19) on two the collateral seats (7) in left and right, and be contained in the eccentric wheel (20) axle (19) is positioned between two the collateral seats (7) in left and right, collateral seat (7) inner side, two, left and right is respectively provided with a side link plate (17), the edge of a knife (8) on an agent localization two collateral seat (7) tops in left and right is equipped with at link plate (17) top, each side, two side link plate (17) bottoms are fixedly linked by supporting plate (18), the described supporting plate (18) be positioned on eccentric wheel (20) is provided with the mainboard (3) of the bar shaped for placing elongated member, top (1) for measuring mainboard (3) End Force F is equipped with in the bottom, one end of this mainboard (3), the horizontal adjusting mechanism of adjustment mainboard (3) levelness is housed at the other end of mainboard (3).
2. the center mass measuring device of elongated member according to claim 1, is characterized in that, two ends of described mainboard (3) is equipped with the back-up block (4) for supporting described elongated member (21).
3. the center mass measuring device of elongated member according to claim 1, it is characterized in that, described horizontal adjusting mechanism comprises the hanging block (14) being fixed on mainboard (3) end, be contained in the upper horizontally disposed screw rod (13) of hanging block (14), and be contained at least one counterweight (15) on screw rod (13).
4. the center mass measuring device of elongated member according to claim 1, is characterized in that, described mainboard (3) is equipped with the spirit-leveling instrument (11) of display mainboard (3) levelness.
5. the center mass measuring device of elongated member according to claim 1, it is characterized in that, link plate (17) top, described side has pilot hole, and described collateral seat (7) top has the V-shaped groove of the location edge of a knife (8), and the described edge of a knife (8) part is placed in described pilot hole.
6. the center mass measuring device of elongated member according to claim 1, it is characterized in that, the installation site of described supporting plate (18) is that eccentric wheel (20) end face is when being positioned at lower dead center, supporting plate (18) and eccentric wheel (20) end face have gap, the edge of a knife (8) lower surface and described collateral seat (7) tip contact; When eccentric wheel (20) end face is positioned at top dead centre, supporting plate (18) contacts with eccentric wheel (20) end face, and the edge of a knife (8) lower surface is separated with described collateral seat (7) top.
7. the center mass measuring device of elongated member according to claim 1, is characterized in that, described collateral seat (7) outside is provided with for the spanner (6) by axle (19) rotating eccentricity wheel (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520941106.1U CN205120309U (en) | 2015-11-20 | 2015-11-20 | Barycenter measuring device of long and thin part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520941106.1U CN205120309U (en) | 2015-11-20 | 2015-11-20 | Barycenter measuring device of long and thin part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205120309U true CN205120309U (en) | 2016-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520941106.1U Expired - Fee Related CN205120309U (en) | 2015-11-20 | 2015-11-20 | Barycenter measuring device of long and thin part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205120309U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222958A (en) * | 2015-11-20 | 2016-01-06 | 江南工业集团有限公司 | A kind of center mass measuring device of elongated member and measuring method |
-
2015
- 2015-11-20 CN CN201520941106.1U patent/CN205120309U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222958A (en) * | 2015-11-20 | 2016-01-06 | 江南工业集团有限公司 | A kind of center mass measuring device of elongated member and measuring 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160330 Termination date: 20181120 |