CN208653967U - A kind of density self-operated measuring unit - Google Patents
A kind of density self-operated measuring unit Download PDFInfo
- Publication number
- CN208653967U CN208653967U CN201821229365.1U CN201821229365U CN208653967U CN 208653967 U CN208653967 U CN 208653967U CN 201821229365 U CN201821229365 U CN 201821229365U CN 208653967 U CN208653967 U CN 208653967U
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- Prior art keywords
- connecting rod
- straight line
- support column
- lead screw
- line slide
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Abstract
The utility model discloses a kind of density self-operated measuring units, it includes pedestal, support column and connecting rod, support column is fixed in the upper surface of pedestal, connecting rod and support are column articulated, connecting rod is arranged symmetrically relative to support column, further includes controller, horizontal measuring instrument, elevating mechanism, first straight line slide unit, second straight line slide unit, lead screw levelling mechanism, displacement sensor, lifter plate, central processing unit and display.The utility model structure is simple, easy to use, realizes all automatic measurement of the density of liquid or solid by increasing a set of leveling system, a set of rider system, a set of display system on the lever construction of pedestal, support column and connecting rod.
Description
Technical field
The utility model relates to a kind of density measuring equipment, belong to densitometer technical field, more particularly to a kind of
Full automatic density measuring equipment.
Background technique
Currently, there are two ways to density is surveyed in school experiment room, bottle method and hydrostatic claim weighing apparatus method.Its common feature
The quality for first weighing out object being measured in the balance, the then direct or indirect volume for measuring the object, then by density formula ρ=
M/v finds out density.Complicated operation, and there is a certain error.In Chinese patent CN85203504U, CN103364307A and
A kind of density balance is disclosed in CN204064846U comprising pedestal, support column and connecting rod, support column are fixed in pedestal
Upper surface, connecting rod and support it is column articulated, scale and rider are provided in connecting rod, the device pass through balance principle, lever
The knowledge such as principle, Archimedes' principle simple, intuitive measures the density of object, but the device is due to being manual operation, therefore
It is not easy to operation, measuring accuracy is not easy to guarantee.
Summary of the invention
In view of the above-mentioned drawbacks of the prior art, the technical problem to be solved by the present invention is to provide a kind of density from
Dynamic measuring device, can not only accurately measure liquid or solid density, and can be realized full-automatic operation, mention
The precision of high-density test.
In order to solve the above technical problems, the utility model use such a density self-operated measuring unit, including pedestal,
Support column and connecting rod, the support column are fixed in the upper surface of the pedestal, the connecting rod and column articulated, the institute of the support
It states connecting rod to be arranged symmetrically relative to the support column, further includes controller, horizontal measuring instrument, elevating mechanism, first straight line cunning
Platform, second straight line slide unit, lead screw levelling mechanism, displacement sensor, lifter plate, central processing unit and display；The lifter plate
It is set to the pedestal upper end and is slidably connected with the support column, is arranged between the support column and the pedestal
Elevating mechanism is stated, the upper surface of the lifter plate is equipped with the first straight line slide unit with connecting rod parallel arrangement, institute
The movable end for stating first straight line slide unit is connected with beaker；The upper end of the connecting rod is connected with the horizontal measuring instrument, the company
Two ends of extension bar are connected with the lead screw levelling mechanism coaxially arranged, there are two the middle part of the connecting rod is affixed
The second straight line slide unit of arrangement in parallel, two second straight line slide units are symmetrical relative to the axis of symmetry of connecting rod
Arrangement, the movable end of the second straight line slide unit are connected with hook, are provided with the displacement by each second straight line slide unit
Sensor；The horizontal measuring instrument and institute's displacement sensors are electrically connected with the input terminal of the central processing unit, the center
The output end of processor is electrically connected with the input terminal of the controller and the display, the output end of the controller with it is described
Elevating mechanism, the first straight line slide unit, the second straight line slide unit and lead screw levelling mechanism electrical connection.
In a kind of preferred embodiment of the utility model, stating elevating mechanism is lifting cylinder arranged in a vertical direction,
The cylinder body of the lifting cylinder and the pedestal are affixed, and the piston rod of the lifting cylinder and the lifter plate are affixed.
In a kind of preferred embodiment of the utility model, the lifting cylinder be 4,4 lifting cylinders relative to
The support column is in a rotationally symmetrical arrangement.
In a kind of preferred embodiment of the utility model, the lead screw levelling mechanism include driving motor, lead screw and
Counterweight nut, the driving motor and the lead screw are coaxially fixed in the end of the connecting rod, the output of the driving motor
End is connect with the lead screw, and the counterweight nut is cooperatively connected on the lead screw.
In a kind of preferred embodiment of the utility model, the center of the lifter plate is equipped with for cooperating the branch
The linear bearing of dagger.
In a kind of preferred embodiment of the utility model, the axis of symmetry of the horizontal measuring instrument and the connecting rod
The axis of symmetry it is conllinear.
In a kind of preferred embodiment of the utility model, the upper end of the support column is connected with 2 support bases, and 2
It is connected with a hinged shaft between support base, one is provided in the middle part of the connecting rod for connecting the hinge hole of hinged shaft.
In a kind of preferred embodiment of the utility model, bearing is installed in the hinge hole.
In a kind of preferred embodiment of the utility model, the elevating mechanism includes driving motor, transmission mechanism, silk
Thick stick and nut, the driving motor, the transmission mechanism and the nut are installed in the pedestal, the driving motor it is defeated
Outlet is connect by the transmission mechanism with the nut, and the nut can return under driving motor effect around own axes
Turn, described lead screw one end and the nut are cooperatively connected, and the other end and the lifter plate are cooperatively connected.
The beneficial effects of the utility model are: the utility model structure is simple, easy to use, by pedestal, support
Increase a set of leveling system, a set of rider system, a set of display system on column and the lever construction of connecting rod to realize liquid
The all automatic measurement of the density of body or solid, tester is whole need to only to think that object to be measured and rider are loaded on to straight line to be slided
On platform, all data informations are after central processing unit is handled by controller driving equipment overall work to directly in display
The upper density for obtaining testing liquid or solid, to greatly improve the degree of automation and test essence of density measuring equipment
Degree.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of density self-operated measuring unit of the utility model embodiment；
Fig. 2 is a kind of schematic diagram of density self-operated measuring unit of the utility model embodiment；
In figure: 1- pedestal；2- support column；3- connecting rod；4- controller；5- horizontal measuring instrument；6- elevating mechanism；7- first
Straight line slide unit；8- second straight line slide unit；9- lead screw levelling mechanism；10- displacement sensor；11- display；12- lifter plate；13-
Central processing unit；14- beaker.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only to explain this
Utility model is not used to limit the utility model.
A kind of density self-operated measuring unit as shown in Figure of description, including pedestal 1, support column 2 and connecting rod 3, branch
Dagger 2 is fixed in the upper surface of pedestal 1, and connecting rod 3 and support column 2 are hinged, and connecting rod 3 is arranged symmetrically relative to support column 2, also
Including controller 4, horizontal measuring instrument 5, elevating mechanism 6, first straight line slide unit 7, second straight line slide unit 8, lead screw levelling mechanism 9,
Displacement sensor 10, lifter plate 12, central processing unit 13 and display 11；Lifter plate 12 be set to 1 upper end of pedestal and with support
Column 2 is slidably connected, and elevating mechanism 6 is provided between support column 2 and pedestal 1, and the upper surface of lifter plate 12 is equipped with and connects
The first straight line slide unit 7 that extension bar 3 is arranged in parallel, the movable end of first straight line slide unit 7 are connected with beaker 14；The upper end of connecting rod 3
It is connected with horizontal measuring instrument 5, two ends of connecting rod 3 are connected with the lead screw levelling mechanism 9 coaxially arranged, connecting rod 3
The affixed second straight line slide unit 8 there are two arrangement in parallel in middle part, two second straight line slide units 8 are relative to connecting rod 3
The axis of symmetry is arranged symmetrically, and the movable end of second straight line slide unit 8 is connected with hook, is provided with position by each second straight line slide unit 8
Displacement sensor 10；Horizontal measuring instrument 5 and displacement sensor 10 are electrically connected with the input terminal of central processing unit 13, central processing unit 13
Output end be electrically connected with the input terminal of controller 4 and display 11, the output end of controller 4 and elevating mechanism 6, first straight line
Slide unit 7, second straight line slide unit 8 and lead screw levelling mechanism 9 are electrically connected.
Further, elevating mechanism 6 is lifting cylinder arranged in a vertical direction, and the cylinder body and pedestal 1 of lifting cylinder are affixed,
The piston rod of lifting cylinder and lifter plate 12 are affixed.
Further, lifting cylinder is 4, and 4 lifting cylinders are in a rotationally symmetrical arrangement relative to support column 2.
Further, lead screw levelling mechanism 9 includes driving motor 9.1, lead screw 9.2 and counterweight nut 9.3, driving motor
9.1 and lead screw 9.2 be coaxially fixed in the end of connecting rod 3, the output end of driving motor 9.1 is connect with lead screw 9.2, counterweight nut
9.3 are cooperatively connected on lead screw 9.2.
Further, the center of lifter plate 12 is equipped with the linear bearing for cooperating support column 2.
Further, the axis of symmetry of horizontal measuring instrument 5 is conllinear with the axis of symmetry of connecting rod 3.
Further, the upper end of support column 2 is connected with 2 support bases, and a hinged shaft is connected between 2 support bases, even
The middle part of extension bar 3 is provided with one for connecting the hinge hole of hinged shaft.
Further, bearing is installed in hinge hole.
Further, elevating mechanism 6 includes driving motor, transmission mechanism, lead screw and nut, driving motor, transmission mechanism
It is installed in pedestal 1 with nut, the output end of driving motor is connect by transmission mechanism with nut, and nut is acted in driving motor
Under can be turned round around own axes, lead screw one end and nut are cooperatively connected, and the other end and lifter plate 12 are cooperatively connected.
When using the present invention, survey crew only needs the manually opened present invention, the level tester in connecting rod 3 of the invention
Signal is passed to central processing unit 13 by 5 work, and when the test of level tester 5 connecting rod 3 is not horizontal, central processing unit 13 will
The data of acquisition pass to controller 4, and the lead screw levelling mechanism 9 that the driving of device 4 processed is located at 3 both ends of connecting rod works so that counterweight spiral shell
Then one object under test is hung on the hook of side second straight line slide unit 8 to guarantee that connecting rod 3 balances by female change in location
A upper, standard counterweight is hung on the hook of other side second straight line slide unit 8, and central processing unit 13 obtains and records rheme
After the data of displacement sensor 10, survey crew pours into the liquid of known density in the beaker of first straight line slide unit 7, then utilizes
Controller 4 controls elevating mechanism 6 and first straight line slide unit 7 makes the liquid in beaker be totally submerged object under test, controls at this time
It is mobile to rebalance the central processing unit 13 the simultaneously of connecting rod 3 that device 4 controls the standard counterweight on the hook of second straight line slide unit 8
After the secondary data for obtaining and recording displacement sensor 10, object under test is directly shown by calculation processing on display 11
Density.
The working principle of central processing unit of the present invention is:
If the quality of testee is M object, volume is V object, according to the condition of lever balance:
MObjectgL1=GL2
It can thus be concluded that: MObject=GL2/gL1(1)
When object is completely submerged in water, according to Archimedes' principle, object is in addition to the effect by gravity itself, simultaneously
Also by water to its buoyancy.
FIt is floating=ρWatergVObject(2)
When rebalancing for second, it is clear that (MObjectg-FIt is floating)L1=GL '2(3)
Simultaneous (1) (2) (3) solves VObject=G (L2-L’2)/(ρWatergL1)
ρObject=MObject/VObject=L2ρWater/(L2-L’2)(4)
From the above equation, we can see that measuring the density of object by this experimental provision, it need to only measure and be put down on second straight line slide unit
Distance of the counterweight that weighs apart from hinged shaft, can easily obtain the density of determinand.Water can also be replaced with other liquid, pay attention to object
Volume density should be greater than fluid density,
ρObject=MObject/VObject=L2ρLiquid/(L2-L’2)(5)
If it is known that the density of object, then this instrument can also be used to the density that liquid is known at measurement end.
It should be understood that the above is only the specific embodiments of the utility model, but the protection scope of the utility model
It is not limited thereto, anyone skilled in the art can be thought easily in the technical scope disclosed by the utility model
The change or replacement arrived, should be covered within the scope of the utility model.
Claims (9)
1. a kind of density self-operated measuring unit, including pedestal (1), support column (2) and connecting rod (3), the support column (2) are affixed
In the upper surface of the pedestal (1), hingedly, the connecting rod (3) is relative to institute for the connecting rod (3) and the support column (2)
It states support column (2) to be arranged symmetrically, it is characterised in that: further include controller (4), horizontal measuring instrument (5), elevating mechanism (6), first
Straight line slide unit (7), second straight line slide unit (8), lead screw levelling mechanism (9), displacement sensor (10), lifter plate (12), centre
Manage device (13) and display (11)；The lifter plate (12) is set to the pedestal (1) upper end and slides with the support column (2)
It is cooperatively connected, is provided between the support column (2) and the pedestal (1) elevating mechanism (6), the lifter plate (12)
Upper surface is equipped with the first straight line slide unit (7) with the connecting rod (3) parallel arrangement, the first straight line slide unit (7)
Movable end be connected with beaker (14)；The upper end of the connecting rod (3) is connected with the horizontal measuring instrument (5), the connecting rod
(3) two ends are connected with the lead screw levelling mechanism (9) coaxially arranged, the middle part of the connecting rod (3) is affixed
There are two the second straight line slide units (8) of arrangement in parallel, and two second straight line slide units (8) are relative to connecting rod
(3) the axis of symmetry is arranged symmetrically, and the movable end of the second straight line slide unit (8) is connected with hook, each second straight line
Institute's displacement sensors (10) are provided with by slide unit (8)；The horizontal measuring instrument (5) and institute's displacement sensors (10) with it is described
The input terminal of central processing unit (13) is electrically connected, the output end of the central processing unit (13) and the input of the controller (4)
End and the display (11) electrical connection, the output end of the controller (4) and the elevating mechanism (6), the first straight line
Slide unit (7), the second straight line slide unit (8) and the lead screw levelling mechanism (9) electrical connection.
2. a kind of density self-operated measuring unit according to claim 1, it is characterised in that: the elevating mechanism (6) is vertical
Direction arrangement lifting cylinder, the cylinder body of the lifting cylinder and the pedestal (1) are affixed, the piston rod of the lifting cylinder and
The lifter plate (12) is affixed.
3. a kind of density self-operated measuring unit according to claim 2, it is characterised in that: the lifting cylinder is 4,4
Lifting cylinder is in a rotationally symmetrical arrangement relative to the support column (2).
4. a kind of density self-operated measuring unit according to claim 1, it is characterised in that: lead screw levelling mechanism (9) packet
Driving motor (9.1), lead screw (9.2) and counterweight nut (9.3) are included, the driving motor (9.1) and the lead screw (9.2) are coaxial
It is fixed in the end of the connecting rod (3), the output end of the driving motor (9.1) is connect with the lead screw (9.2), described to match
Weight nut (9.3) is cooperatively connected on the lead screw (9.2).
5. a kind of density self-operated measuring unit according to claim 1, it is characterised in that: feel at ease in the lifter plate (12)
Equipped with for cooperating the linear bearing of the support column (2).
6. a kind of density self-operated measuring unit according to claim 1, it is characterised in that: pair of the horizontal measuring instrument (5)
Claim axis conllinear with the axis of symmetry of the connecting rod (3).
7. a kind of density self-operated measuring unit according to claim 1, it is characterised in that: the upper end of the support column (2) is solid
2 support bases are connected to, a hinged shaft is connected between 2 support bases, one is provided in the middle part of the connecting rod (3) for connecting
Connect the hinge hole of hinged shaft.
8. a kind of density self-operated measuring unit according to claim 7, it is characterised in that: be equipped with axis in the hinge hole
It holds.
9. a kind of density self-operated measuring unit according to claim 1, it is characterised in that: the elevating mechanism (6) includes driving
Dynamic motor, transmission mechanism, lead screw and nut, the driving motor, the transmission mechanism and the nut are installed on the pedestal
(1) in, the output end of the driving motor is connect by the transmission mechanism with the nut, and the nut is in the driving electricity
It can be turned round around own axes under machine effect, described lead screw one end and the nut are cooperatively connected, the other end and the lifter plate
(12) it is cooperatively connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821229365.1U CN208653967U (en) | 2018-08-01 | 2018-08-01 | A kind of density self-operated measuring unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821229365.1U CN208653967U (en) | 2018-08-01 | 2018-08-01 | A kind of density self-operated measuring unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208653967U true CN208653967U (en) | 2019-03-26 |
Family
ID=65787276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821229365.1U Expired - Fee Related CN208653967U (en) | 2018-08-01 | 2018-08-01 | A kind of density self-operated measuring unit |
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| Country | Link |
|---|---|
| CN (1) | CN208653967U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108956373A (en) * | 2018-08-01 | 2018-12-07 | 湖北理工学院 | A kind of density self-operated measuring unit and method |
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2018
- 2018-08-01 CN CN201821229365.1U patent/CN208653967U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108956373A (en) * | 2018-08-01 | 2018-12-07 | 湖北理工学院 | A kind of density self-operated measuring unit and method |
| CN108956373B (en) * | 2018-08-01 | 2023-11-07 | 湖北理工学院 | Automatic density measuring device and method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190326 Termination date: 20200801 |
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| CF01 | Termination of patent right due to non-payment of annual fee |