CN208966845U - A kind of eccentric wheel - Google Patents
A kind of eccentric wheel Download PDFInfo
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- CN208966845U CN208966845U CN201821813777.XU CN201821813777U CN208966845U CN 208966845 U CN208966845 U CN 208966845U CN 201821813777 U CN201821813777 U CN 201821813777U CN 208966845 U CN208966845 U CN 208966845U
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- eccentric
- wheel
- wheel body
- eccentric wheel
- shaft bearing
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- 230000003014 reinforcing effect Effects 0.000 claims abstract description 15
- 230000005484 gravity Effects 0.000 claims abstract description 7
- 238000001746 injection moulding Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000004568 cement Substances 0.000 description 7
- 230000008901 benefit Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 241001269238 Data Species 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
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- Reciprocating Pumps (AREA)
Abstract
The utility model provides a kind of eccentric wheel.Including wheel body, the geometric center of the wheel body side is provided with positioning axis platform, and the other side of the wheel body is provided with eccentric shaft bearing column.The wheel body is the hollow disc-shape structure of one end face closure, and wheel body is divided into first part and second part along plane where central axis；Positioning axis platform is semicolumn boss, is in first part；Eccentric shaft bearing column is cylindrical boss, is in second part.There is reinforcing rib in the second part of the wheel body, the second part end face is provided with through-hole；There is reinforcing prop in having in the first part of the wheel body；The center of gravity of eccentric wheel is fallen on the axis of wheel body.The utility model guarantees that the center of gravity of eccentric wheel is in the axial location of wheel body, improves stationarity of the eccentric wheel when cooperating other components to use.Eccentric shaft bearing column is generally cooperatively connected with hole, and axis, hole fit closely, be not easy to loosen, firmly install, and substantially increases the Assembly stability and assembly precision of eccentric wheel.
Description
Technical field
The utility model relates to technical field of mechanical transmission, and in particular to a kind of eccentric wheel.
Background technique
Eccentric wheel just refers to the center of this wheel not on the point of rotation as its name suggests, and what is generally referred to is exactly circular wheel,
When circle is not rotated around the center of oneself, just at eccentric wheel.
Eccentric wheel is generally used in mechanical structure, generates reciprocating motion.The eccentric wheel of conventional structure, since axis hole is biased to
On one side, centre-of gravity shift geometric center is caused, mechanically operated efficiency and precision are influenced.Moreover, eccentric wheel and other driving members connect
When connecing, it is easy to loosen, it is insecure.In diaphragm pump, metal eccentric wheel is generally used, metal eccentric wheel can only add by machining
Work is assemblied on the output shaft of motor, relatively rotates in order to prevent at circular shaft bore, generally requires in eccentric wheel radial
Increase circular hole, and fastened by screw, complex process, and as eccentric wheel high-speed rotates, screw easily loosens, make motor with it is inclined
Heart wheel is detached from.
In conclusion being badly in need of a kind of eccentric wheel to solve problems of the prior art.
Utility model content
The utility model aim is to provide a kind of eccentric wheel, is asked with solving that eccentric wheel installation is insecure, stability is poor etc.
Topic.
To achieve the above object, the utility model provides a kind of eccentric wheel, including wheel body, the geometry of the wheel body side
It is provided centrally with positioning axis platform, the other side of the wheel body is provided with eccentric shaft bearing column.
The wheel body is the hollow disc-shape structure of one end face closure, and wheel body is divided into first part along plane where central axis
And second part；Positioning axis platform is semicolumn boss, is in first part；Eccentric shaft bearing column is cylindrical boss, is in second
Part.
There is reinforcing rib in the second part of the wheel body, the second part end face is provided with through-hole；The first of the wheel body
There is reinforcing prop in having in part.
The sum of first part and positioning axis platform weight are equal to the sum of second part and eccentric shaft bearing column weight, the weight of eccentric wheel
The heart is fallen on the axis of wheel body.
Preferably, the quantity of the reinforcing prop is four.
Preferably, the quantity of the through-hole is two.
Preferably, the positioning axis platform offers D-shaped axis hole, and the axis hole runs through wheel body and eccentric shaft bearing column.
Preferably, it is provided with groove in the eccentric shaft bearing column, makes eccentric shaft bearing column that there is elasticity.
Preferably, the eccentric wheel is made of flexible nonmetallic materials integrated injection molding.
Using the technical solution of the utility model, have the advantages that
(1) in the utility model, it is provided with reinforcing prop in the first part of wheel body, is provided with and adds in the second part of wheel body
Strengthening tendons and through-hole of having slotted so that first part and positioning the sum of axis platform weight be equal to second part and eccentric shaft bearing column weight it
With guarantee that the center of gravity of eccentric wheel is in the axial location of wheel body, it is flat when cooperating other components to use to improve eccentric wheel
Stability, while also improving the service life of eccentric wheel.
(2) in the utility model, eccentric shaft bearing column is generally cooperatively connected with hole, recessed due to being provided in eccentric shaft bearing column
Slot, and using non-metallic elastic material make, allow eccentric shaft bearing column it is radially compressed, rebound.The compression of eccentric shaft bearing column
It inserts in the hole when state, there are gap, assembly is simple for axis and hole；After eccentric shaft bearing column inserts in the hole, eccentric shaft bearing column can be delayed
Low resilience is restored to original shape, makes there are tensile force between axis and hole, and axis, hole fit closely, and is not easy to loosen, installation jail
Gu substantially increasing the Assembly stability and assembly precision of eccentric wheel.
Other than objects, features and advantages described above, there are also other purposes, feature and excellent for the utility model
Point.Below with reference to figure, the utility model is described in further detail.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide a further understanding of the present invention, the utility model
Illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model.In attached drawing
In:
Fig. 1 is the front axonometric drawing of eccentric wheel；
Fig. 2 is the back side axonometric drawing of eccentric wheel；
Fig. 3 is the main view of eccentric wheel；
Fig. 4 is the A of eccentric wheel to revolved sectional view；
Fig. 5 is the top view of eccentric wheel；
Fig. 6 is the rearview of eccentric wheel；
Fig. 7 is diaphragm pump noise test contrast curve chart；
Fig. 8 is eccentric wheel pressing-in force test comparison curve graph.
Wherein, 1, wheel body, 11, first part, 111, reinforcing prop, 12, second part, 121, reinforcing rib, 122, through-hole, 2,
Position axis platform, 21, axis hole, 3, eccentric shaft bearing column, 31, groove.
Specific embodiment
The embodiments of the present invention are described in detail below in conjunction with attached drawing, but the utility model can be according to power
Benefit requires to limit and the multitude of different ways of covering is implemented.
Embodiment 1:
Referring to FIG. 1 to FIG. 6, a kind of eccentric wheel, the present embodiment is applied in the eccentric wheel mechanism of diaphragm pump.
A kind of eccentric wheel includes wheel body 1, and the geometric center of 1 side of wheel body is provided with positioning axis platform 2, the wheel body 1
The other side be provided with eccentric shaft bearing column 3；The eccentric wheel is made of flexible nonmetallic materials integrated injection molding.
The wheel body 1 is the hollow disc-shape structure of one end face closure, and wheel body 1 is divided into first along plane where central axis
Divide 11 and second part 12；Positioning axis platform 2 is semicolumn boss, is in first part 11；Eccentric shaft bearing column 3 is circular cylindrical projection
Platform is in second part 12；There is reinforcing rib 121 in the second part 12 of the wheel body 1,12 end face of second part is provided with logical
Hole 122；The quantity of the through-hole 122 is two.There is reinforcing prop 111 in having in the first part 11 of the wheel body 1；The reinforcement
The quantity of column 111 is four.The sum of first part 11 and positioning 2 weight of axis platform are equal to second part 12 and 3 weight of eccentric shaft bearing column
The sum of amount, the center of gravity of eccentric wheel is fallen on the axis of wheel body.
The positioning axis platform 2 offers D-shaped axis hole 21, and the axis hole 21 runs through wheel body 1 and eccentric shaft bearing column 3.It is described inclined
It is provided with groove 31 in mandrel bearing column 3, makes eccentric shaft bearing column that there is elasticity, radial compression and can spring back.
The eccentric wheel mechanism of diaphragm pump is mainly made of eccentric wheel and connecting rod, and eccentric wheel is connect by bearing with connecting rod.Axis
It holds in the eccentric shaft bearing column for being socketed in eccentric wheel；The output shaft of motor is interspersed in the axis hole of eccentric wheel, is provided and is turned for eccentric wheel
Dynamic power.
It chooses the plastic cement eccentric wheel used in hardware eccentric wheel used in conventional patch pump and the present embodiment and carries out noise
Experimental Comparison, experimental enviroment: 27 DEG C of temperature, the silent room of humidity 70%.Test method is as follows:
(1) external 12V voltage imports and exports standard-sized sheet, starts diaphragm pump.
(2) size of ambient noise first is measured with decibel instrument, environmental noise should be lower than 40db；Decibel instrument is placed in micropump again
It is tested 1 time at the 0CM of top.
(3) every kind of eccentric wheel acquires 10 groups of data, log, and draws curve graph.
Test result is as shown in the table:
As seen from the experiment, using the diaphragm pump of hardware eccentric wheel, noise average value is 66.37 decibels；And use modeling
The diaphragm pump of glue eccentric wheel, noise average value are 57.75 decibels, and the noise that plastic cement eccentric wheel generates is produced much smaller than hardware eccentric wheel
Raw noise, noise reduction effect are obvious.Curve graph is drawn out according to test result, as shown in fig. 7, abscissa representing sample is numbered,
Ordinate indicates noise level.It is 4.28 by the standard deviation that calculating can find out 10 groups of noise datas of hardware eccentric wheel, plastic cement
The standard deviation of 10 groups of noise datas of eccentric wheel is 1.78, and standard deviation is smaller, illustrates that dispersion degree is low, and stability is good.
The plastic cement eccentric wheel used in hardware eccentric wheel used in conventional patch pump and the present embodiment is chosen to be pressed into
Power Experimental Comparison, test method are as follows:
(1) eccentric wheel tooling will be entered to be fixed on precise servo press by standard；
(2) press has been debugged, and has set pressure parameter, eccentric wheel has been pressed into bearing；
(3) 10 groups of data are acquired and draws curve graph.
Test result is as shown in the table:
As seen from the experiment, the average value of hardware eccentric wheel pressing-in force is 157.02N；The pressing-in force of plastic cement eccentric wheel is
157.56N, the average value sizableness of two kinds of eccentric wheel pressing-in forces.Curve graph is drawn out according to test result, as shown in figure 8,
Abscissa representing sample number, ordinate indicate pressing-in force size.10 groups of pressing-in forces of hardware eccentric wheel can be found out by calculating
Standard deviation be 80.04, the standard deviations of 10 groups of pressing-in forces of plastic cement eccentric wheel is 15.41, the standard deviation of hardware eccentric wheel pressing-in force
Much larger than the standard deviation of plastic cement eccentric wheel pressing-in force, standard deviation is smaller, illustrates that dispersion degree is low, and stability is good.
In a kind of above-mentioned eccentric wheel, it is provided with reinforcing prop in the first part of wheel body, is provided in the second part of wheel body
Reinforcing rib and through-hole of having slotted, so that the sum of first part and positioning axis platform weight are equal to second part and eccentric shaft bearing column weight
The sum of, guarantee that the center of gravity of eccentric wheel is in the axial location of wheel body, improve eccentric wheel cooperate other components use when
Stationarity, while also improving the service life of eccentric wheel.
In a kind of above-mentioned eccentric wheel, eccentric shaft bearing column and bearing hole are cooperatively connected, recessed due to being provided in eccentric shaft bearing column
Slot, and using non-metallic elastic material make, allow eccentric shaft bearing column it is radially compressed, rebound.The compression of eccentric shaft bearing column
It inserts in the hole when state, there are gap, assembly is simple for axis and hole；After eccentric shaft bearing column inserts in the hole, eccentric shaft bearing column can be delayed
Low resilience is restored to original shape, makes there are tensile force between axis and hole, and axis, hole fit closely, and is not easy to loosen, installation jail
Gu substantially increasing the Assembly stability and assembly precision of eccentric wheel.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (6)
1. a kind of eccentric wheel, which is characterized in that including wheel body (1), the geometric center of wheel body (1) side is provided with locating shaft
The other side of platform (2), the wheel body (1) is provided with eccentric shaft bearing column (3)；
The wheel body (1) is the hollow disc-shape structure of one end face closure, and wheel body (1) is divided into first along plane where central axis
Divide (11) and second part (12)；Positioning axis platform (2) is semicolumn boss, is in first part (11)；Eccentric shaft bearing column (3) is
Cylindrical boss is in second part (12)；
Have reinforcing rib (121) in the second part (12) of the wheel body (1), second part (12) end face is provided with through-hole
(122)；There are reinforcing prop (111) in having in the first part (11) of the wheel body (1)；
The sum of first part (11) and positioning axis platform (2) weight are equal to the sum of second part (12) and eccentric shaft bearing column (3) weight,
The center of gravity of eccentric wheel is fallen on the axis of wheel body.
2. a kind of eccentric wheel according to claim 1, which is characterized in that the quantity of the reinforcing prop (111) is four.
3. a kind of eccentric wheel according to claim 1, which is characterized in that the quantity of the through-hole (122) is two.
4. a kind of eccentric wheel according to claim 1, which is characterized in that the positioning axis platform (2) offers D-shaped axis hole
(21), the axis hole (21) runs through wheel body (1) and eccentric shaft bearing column (3).
5. a kind of eccentric wheel according to claim 1, which is characterized in that be provided with groove in the eccentric shaft bearing column (3)
(31), make eccentric shaft bearing column that there is elasticity.
6. a kind of eccentric wheel according to claim 1, which is characterized in that the eccentric wheel is using flexible nonmetallic
The production of material integrated injection molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821813777.XU CN208966845U (en) | 2018-11-01 | 2018-11-01 | A kind of eccentric wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821813777.XU CN208966845U (en) | 2018-11-01 | 2018-11-01 | A kind of eccentric wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208966845U true CN208966845U (en) | 2019-06-11 |
Family
ID=66760281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821813777.XU Active CN208966845U (en) | 2018-11-01 | 2018-11-01 | A kind of eccentric wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208966845U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058279A (en) * | 2018-11-01 | 2018-12-21 | 长沙多浦乐泵业科技有限公司 | A kind of eccentric wheel |
-
2018
- 2018-11-01 CN CN201821813777.XU patent/CN208966845U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058279A (en) * | 2018-11-01 | 2018-12-21 | 长沙多浦乐泵业科技有限公司 | A kind of eccentric wheel |
| CN109058279B (en) * | 2018-11-01 | 2024-04-26 | 长沙多浦乐泵业科技有限公司 | Eccentric wheel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: an eccentric wheel Effective date of registration: 20220831 Granted publication date: 20190611 Pledgee: Bank of Changsha Co.,Ltd. Jincheng sub branch Pledgor: CHANGSHA TOPSFLO PUMP TECHNOLOGY CO.,LTD. Registration number: Y2022430000077 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20190611 Pledgee: Bank of Changsha Co.,Ltd. Jincheng sub branch Pledgor: CHANGSHA TOPSFLO PUMP TECHNOLOGY CO.,LTD. Registration number: Y2022430000077 |