CN203130412U - Crankshaft type vacuum air pump and window cleaning device thereof - Google Patents
Crankshaft type vacuum air pump and window cleaning device thereof Download PDFInfo
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- CN203130412U CN203130412U CN 201320102761 CN201320102761U CN203130412U CN 203130412 U CN203130412 U CN 203130412U CN 201320102761 CN201320102761 CN 201320102761 CN 201320102761 U CN201320102761 U CN 201320102761U CN 203130412 U CN203130412 U CN 203130412U
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Abstract
Provided are a crankshaft type vacuum air pump and a window cleaning device thereof. The crankshaft type vacuum air pump comprises a drive motor (1), an air pump body (2) and a piston air pump assembly (3) arranged on the air pump body, wherein a crankshaft unit is arranged in the air pump body, the top end of the crankshaft unit is connected with an air pump body through an upper eccentric wheel (4), the tail end of the crankshaft unit is connected with the drive motor through a lower eccentric wheel (5), the drive motor outputs power for the crankshaft unit to enable the crankshaft unit to rotate, and the crankshaft unit is connected with the piston air pump assembly and drives the piston air pump assembly to move so as to finish air feeding and air exhaust of the piston air pump assembly. The crankshaft type vacuum air pump and the window cleaning device are simple and compact in structure, and a crankshaft is centrally symmetric, so that one or more crankshaft units serve as rotary shafts, the overall gravity center is always located at the rotating center in the rotating process, and vibration does not produced due to centrifugal force. The rotary shafts subjected to force of pistons rods on two sides are always symmetric relative to the rotating center, so that radial force the rotary shafts are subjected to is basically zero, the vibration produced in the rotating process due to unbalanced stress is weakened, and a working state is stable.
Description
Technical field
The utility model relates to a kind of curved shaft type vacuum air pump and the device that cleans the windows thereof, and belongs to machinery manufacturing technology field.
Background technique
Fig. 1 is the overall structure schematic representation of existing eccentric wheel type vacuum air pump.As shown in Figure 1, existing vacuum air pump is to drive pistons rod for air pump 300 by the eccentric wheel 200 that is installed on motor 100 output shafts 110, makes its to-and-fro motion, to realize vacuumizing action.Fig. 2 is existing eccentric wheel type vacuum air pump center of gravity and the distance of rotating shaft and the variation relation schematic representation between the angle of swing.As shown in Figure 2, when angle of swing was 0 °, distance was 0 also, and along with the also increasing thereupon of variation distance value of angle of swing, when angle of swing was 90 °, distance reached peak 0.55mm; When angle of swing during from 90 ° to 180 °, distance diminishes again gradually.From 180 ° to 360 ° process, repeat aforesaid change procedure in angle of swing.As shown in Figure 2, rotate owing to use pot motor to drive eccentric wheel, the variable in distance amplitude of center of gravity and rotating shaft during rotation is bigger.Fig. 3 and Fig. 4 are respectively existing eccentric wheel type vacuum air pump rotating shaft and are subjected to radial force X and Y force analysis figure.As shown in Figure 3 and Figure 4, the power of the centrifugal force that eccentric wheel rotate to produce and the piston rod that is subjected to makes that rotating shaft is subjected to changing along with the variation of angle of swing is corresponding along the directions X radial force of piston rod with perpendicular to the Y-direction radial force of piston rod when rotating.As shown in Figure 3, along with the variation of angle of swing, the maximum value of radial force X is 1.625e-06N, and minimum value is-2.00e-06N; As shown in Figure 4, along with the variation of angle of swing, the maximum value of radial force Y is 0.9N, and minimum value is-0.9N, and by data among the figure as can be known, alternately the difference between the power that changes is bigger, and this makes vacuum air pump serious jitter phenomenon occur.As shown in Figure 1, in order to reduce vibration, present way is to increase a balancing weight 400 at eccentric wheel, and with the balance center of gravity, but effect is still very undesirable.
The model utility content
Technical problem to be solved in the utility model is at the deficiencies in the prior art, a kind of curved shaft type vacuum air pump is provided, simple and compact for structure, the bent axle unit is as rotating shaft, because each bent axle center symmetry wherein itself, make whole center of gravity in rotation process, be positioned at all the time on the rotating center, can not be subjected to the influence of centrifugal force and produce vibration; Rotating shaft is subjected to the power of both sides piston rod all the time with respect to the rotating center symmetry, and the radial force that makes rotating shaft be subjected to is zero substantially, has weakened greatly in the rotation process owing to the vibration problem that produced by force unbalance, stable working state; Simultaneously, the installation quantity of bent axle unit be can adjust as required, tolerance and volume that vacuum air pump is fit to obtained.
Technical problem to be solved of the present utility model is achieved by the following technical solution:
A kind of curved shaft type vacuum air pump, comprise drive motor, air pump body and be arranged on piston air pump assembly on the air pump body, be provided with the bent axle unit in the described air pump body, the top of bent axle unit links to each other with described air pump body by last eccentric wheel, eccentric wheel links to each other with drive motor under terminal the passing through, the drive motor outputting power makes its rotation for the bent axle unit, and the bent axle unit links to each other with the piston air pump assembly and drives its motion, finishes air inlet and the exhaust course of action of each piston air pump assembly.
Specifically, described bent axle unit comprises bent axle, is arranged with upper piston rod and lower piston rod respectively in the upper and lower both sides of bent axle, described lower piston rod and upper piston rod respectively be arranged on described air pump body not the piston air pump assembly of ipsilateral link to each other.
Described bent axle comprises bent axle body and two axial regions, two axial regions make progress respectively from the left and right two ends of bent axle body, extend downwards, the axial region of bent axle comprises piston rod joint and eccentric wheel joint, piston rod is located on the piston rod joint by bearing housing, and the eccentric wheel joint inserts in the eccentric eccentric opening fixing.
In order to guarantee bent axle stress balance and minimizing vibrations all the time, described crankshaft center symmetry.
For simplified design, the described eccentric wheel of going up is identical with time eccentric structure, comprises wheel disc respectively, is provided with the wheel shaft of protrusion in a side of wheel disc, and opposite side is provided with eccentric opening; The described eccentric wheel of going up is symmetrical arranged with respect to described bent axle unit with following eccentric wheel.
As required, the quantity that arranges of described bent axle unit is more than one, link to each other by land between two adjacent bent axle unit, described land comprises disk body and is arranged on the upper and lower lip-deep connecting base of disk body, respectively with adjacent two bent axle unit in different bent axles link to each other.
Generally, the quantity that arranges of described bent axle unit is 2-3.
The utility model also provides a kind of device that cleans the windows, comprise absorbing unit and walking unit, the device that cleans the windows is adsorbed in glass surface by absorbing unit, wherein, absorbing unit comprises sucker and vacuum air pump, vacuum air pump provides vacuum force for sucker, and this vacuum air pump adopts above-mentioned curved shaft type vacuum air pump.
In sum, the utility model is simple and compact for structure, and the bent axle unit is as rotating shaft, because the own center of each bent axle symmetry wherein makes whole center of gravity be positioned at all the time in rotation process on the rotating center, can not be subjected to the influence of centrifugal force and produces vibration; Rotating shaft is subjected to the power of both sides piston rod all the time with respect to the rotating center symmetry, and the radial force that makes rotating shaft be subjected to is zero substantially, has weakened greatly in the rotation process owing to the vibration problem that produced by force unbalance, stable working state.And because the bent axle unit itself comprises bent axle body and two axial regions, piston rod can be set on the piston rod joint easily by bearing, has shortened the installation time of vacuum air pump greatly.
Below in conjunction with the drawings and specific embodiments, the technical solution of the utility model is described in detail.
Description of drawings
Fig. 1 is the overall structure schematic representation of existing eccentric wheel type vacuum air pump;
Fig. 2 is existing eccentric wheel type vacuum air pump center of gravity and the distance of rotating shaft and the variation relation schematic representation between the angle of swing;
Fig. 3 and Fig. 4 are respectively existing eccentric wheel type vacuum air pump rotating shaft and are subjected to radial force X and Y force analysis figure;
Fig. 5 is the utility model embodiment one overall structure schematic representation;
Fig. 6 is the distance of the utility model embodiment one center of gravity and rotating shaft and the variation relation schematic representation between the angle of swing;
Fig. 7 and Fig. 8 are respectively the utility model embodiment one bent axle and are subjected to radial force X and Y force analysis figure;
Fig. 9 is the three-dimensional erection drawing of the utility model embodiment two bent axle unit;
Figure 10 is the sectional view of the utility model embodiment two bent axle unit.
Embodiment
Embodiment one
Fig. 5 is the utility model embodiment one overall structure schematic representation.As shown in Figure 5, the utility model provides a kind of curved shaft type vacuum air pump, comprise drive motor 1, air pump body 2 and be arranged on piston air pump assembly 3 in the air pump body 2, described air pump body 2 is provided with the bent axle unit rotates it, and the center line of drive motor 1 output shaft overlaps with the rotating center of bent axle unit.The top of bent axle unit links to each other with described air pump body 2 by last eccentric wheel 4, eccentric wheel 5 links to each other with drive motor 1 under terminal the passing through, drive motor 1 outputting power is given the bent axle unit, the bent axle unit links to each other with piston air pump assembly 3 and drives its motion, finishes air inlet and the exhaust course of action of each piston air pump assembly 3.Specifically, described bent axle unit comprises bent axle 7, be arranged with upper piston rod 8 and lower piston rod 9 respectively in the upper and lower both sides of bent axle 7, described lower piston rod 9 and upper piston rod 8 respectively be arranged on described air pump body 2 not the piston air pump assembly 3 of ipsilateral link to each other.Described bent axle 7 comprises bent axle body 71 and two axial regions, two axial regions make progress respectively from the left and right two ends of bent axle body 71, extend downwards, the axial region of bent axle 7 comprises piston rod joint 72 and eccentric wheel joint 73, piston rod is located on the piston rod joint 72 by bearing housing, and it is interior fixing that eccentric wheel joint 73 inserts the eccentric opening of eccentric wheel 4.The wheel shaft of following eccentric wheel 5 is fixedlyed connected with machine shaft, and the wheel shaft of last eccentric wheel 4 is connected on the air pump body 2 by bearing.In order to guarantee bent axle stress balance and minimizing vibrations all the time, described bent axle 7 center symmetries own make whole center of gravity be positioned on the rotating center all the time in rotation process.For simplified design, the described eccentric wheel 4 of going up is identical with the structure of following eccentric wheel 5, comprises wheel disc 10 respectively, is provided with the wheel shaft 11 of protrusion in a side of wheel disc 10, and opposite side is provided with eccentric opening 12; The described eccentric wheel 4 of going up is symmetrical arranged with respect to described bent axle unit with following eccentric wheel 5.
In conjunction with shown in Figure 5, the working procedure of curved shaft type vacuum air pump provided by the utility model is such: drive motor 1 is started working, when motor rotates, bent axle 7 and upper and lower eccentric wheel 4,5 rotate synchronously, driving upper piston rod 8 and lower piston rod 9 moves back and forth, the piston air pump assembly 3 at two ends is bled and exhaust simultaneously, thereby the sucker that is connected with piston air pump assembly 3 is vacuumized operation incessantly.
Fig. 6 is the distance of the utility model embodiment one center of gravity and rotating shaft and the variation relation schematic representation between the angle of swing; Fig. 7 and Fig. 8 are respectively the utility model embodiment one bent axle and are subjected to radial force X and Y force analysis figure.As shown in Figure 6, along with the variation of angle of swing, the distance of center of gravity and rotating shaft remains 0, and any variation does not take place.As shown in Figure 7, along with the variation of angle of swing, the maximum value of radial force X is 1.75e-09N, and minimum value is-1.75e-09N; As shown in Figure 8, along with the variation of angle of swing, the maximum value of radial force Y is 0N, and minimum value is-3.75e-09N.In conjunction with the above-mentioned data among Fig. 6 to Fig. 8 as can be known, at first, the center of bent axle in the utility model symmetry own uses the curved shaft type vacuum air pump to make whole center of gravity be positioned at all the time in rotation process on the rotating center, can not be subjected to the influence of centrifugal force in the time of rotation and produces vibration.Secondly, in rotation process, rotating shaft is subjected to the power of both sides piston rod all the time with respect to the rotating center symmetry, and the radial force that makes rotating shaft be subjected to is zero substantially, thereby has weakened in the rotation process owing to the vibration problem that produced by force unbalance.And because the bent axle unit itself comprises bent axle body and two axial regions, piston rod can be set on the piston rod joint easily by bearing, has shortened the installation time of vacuum air pump greatly.
Embodiment two
Fig. 9 is the three-dimensional erection drawing of the utility model embodiment two bent axle unit; Figure 10 is the sectional view of the utility model embodiment two bent axle unit.As Fig. 9 and in conjunction with shown in Figure 10, as required, the quantity that arranges of described bent axle unit is more than one, link to each other by land 6 between two adjacent bent axle unit, described land 6 comprises disk body 61 and is arranged on the upper and lower lip-deep connecting base 62 of disk body, respectively with adjacent two bent axle unit in different bent axles link to each other.Generally, the quantity that arranges of described bent axle unit is 2-3.
Present embodiment and embodiment's one difference only is that the quantity of the bent axle unit that arranges is different in the curved shaft type vacuum air pump, other technologies feature and embodiment one in the present embodiment are basic identical, do not repeat them here.
The utility model also provides a kind of device that cleans the windows, comprise absorbing unit and walking unit, the device that cleans the windows is adsorbed in glass surface by absorbing unit, wherein, absorbing unit comprises sucker and vacuum air pump, vacuum air pump provides vacuum force for sucker, and this vacuum air pump adopts above-described embodiment one or embodiment's two described curved shaft type vacuum air pumps.
In addition, need to prove, bent axle in the curved shaft type vacuum air pump provided by the utility model, adopted the structure that is similar to automobile engine crankshaft, can make two connecting rods, four connecting rods or more, but distinguish to some extent with the effect of automobile current generator integral one-piece crankshaft, automobile engine crankshaft is in order to make the cylinder number that acts in its movement process certain, makes that externally active force is constant in the course of action.Be the mode that segmentation is installed and the bent axle in the utility model uses, make easy to assembly, and in mechanism bent axle stress balance all the time, thereby guaranteed dynamic balancing, weaken because the vibrations that caused by force unbalance; And make the center of gravity of air pump integral body overlap with rotating shaft, weakened the vibrations that inertial force causes.In sum, the utility model has been cancelled existing balancing weight by the application to the bent axle modular construction, simple and compact for structure, because the center of bent axle symmetry own, make whole center of gravity in rotation process, be positioned at all the time on the rotating center, can not be subjected to the influence of centrifugal force and produce vibration; Rotating shaft is subjected to the power of both sides piston rod all the time with respect to the rotating center symmetry, and the radial force that makes rotating shaft be subjected to is zero substantially, has weakened greatly in the rotation process owing to the vibration problem that produced by force unbalance, weakens vibration effectively and feels stable working state.
Claims (8)
1. curved shaft type vacuum air pump, comprise drive motor (1), air pump body (2) and be arranged on piston air pump assembly (3) on the air pump body, it is characterized in that, be provided with the bent axle unit in the described air pump body (2), the top of bent axle unit links to each other with described air pump body (2) by last eccentric wheel (4), eccentric wheel (5) links to each other with drive motor (1) under terminal the passing through, drive motor (1) outputting power makes its rotation for the bent axle unit, the bent axle unit links to each other with piston air pump assembly (3) and drives its motion, finishes air inlet and the exhaust course of action of each piston air pump assembly.
2. curved shaft type vacuum air pump as claimed in claim 1, it is characterized in that, described bent axle unit comprises bent axle (7), be arranged with upper piston rod (8) and lower piston rod (9) respectively in the upper and lower both sides of bent axle (7), described lower piston rod (9) and upper piston rod (8) respectively be arranged on described air pump body (2) not the piston air pump assembly (3) of ipsilateral link to each other.
3. curved shaft type vacuum air pump as claimed in claim 2, it is characterized in that, described bent axle (7) comprises bent axle body (71) and two axial regions, two axial regions make progress respectively from the left and right two ends of bent axle body (71), extend downwards, the axial region of bent axle comprises piston rod joint (72) and eccentric wheel joint (73), piston rod is located on the piston rod joint (72) by bearing housing, and eccentric wheel joint (73) inserts in the eccentric eccentric opening fixing.
4. curved shaft type vacuum air pump as claimed in claim 3 is characterized in that, described bent axle (7) center symmetry.
5. curved shaft type vacuum air pump as claimed in claim 3, it is characterized in that described upward eccentric wheel (4) is identical with the structure of following eccentric wheel (5), comprises wheel disc (10) respectively, be provided with the wheel shaft (11) of protrusion in a side of wheel disc (10), opposite side is provided with eccentric opening (12); Described upward eccentric wheel (4) and following eccentric wheel (5) are symmetrical arranged with respect to described bent axle unit.
6. as claim 4 or 5 described curved shaft type vacuum air pumps, it is characterized in that, the quantity that arranges of described bent axle unit is more than one, link to each other by land (6) between two adjacent bent axle unit, described land (6) comprises disk body (61) and is arranged on the upper and lower lip-deep connecting base of disk body (62), respectively with adjacent two bent axle unit in different bent axles (7) link to each other.
7. curved shaft type vacuum air pump as claimed in claim 6 is characterized in that, the quantity that arranges of described bent axle unit is 2-3.
8. device that cleans the windows, comprise absorbing unit and walking unit, the device that cleans the windows is adsorbed in glass surface by absorbing unit, described absorbing unit comprises sucker and vacuum air pump, vacuum air pump provides vacuum force for sucker, it is characterized in that described vacuum air pump is each described curved shaft type vacuum air pump of claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320102761 CN203130412U (en) | 2013-03-06 | 2013-03-06 | Crankshaft type vacuum air pump and window cleaning device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320102761 CN203130412U (en) | 2013-03-06 | 2013-03-06 | Crankshaft type vacuum air pump and window cleaning device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203130412U true CN203130412U (en) | 2013-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320102761 Expired - Fee Related CN203130412U (en) | 2013-03-06 | 2013-03-06 | Crankshaft type vacuum air pump and window cleaning device thereof |
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| CN (1) | CN203130412U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033356A (en) * | 2013-03-06 | 2014-09-10 | 科沃斯机器人科技(苏州)有限公司 | Crank shaft vacuum air pump and glass cleaning device thereof |
| WO2015074562A1 (en) * | 2013-11-20 | 2015-05-28 | 苏州科沃斯商用机器人有限公司 | Automatic air release apparatus |
| CN106089679A (en) * | 2016-08-04 | 2016-11-09 | 兰州兰石集团有限公司 | The eccentric Double gear-ring bent axle of three grades of slush pump |
-
2013
- 2013-03-06 CN CN 201320102761 patent/CN203130412U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033356A (en) * | 2013-03-06 | 2014-09-10 | 科沃斯机器人科技(苏州)有限公司 | Crank shaft vacuum air pump and glass cleaning device thereof |
| WO2014135099A1 (en) * | 2013-03-06 | 2014-09-12 | 科沃斯机器人科技(苏州)有限公司 | Crankshaft-type vacuum air pump and glass-wiping apparatus thereof |
| WO2015074562A1 (en) * | 2013-11-20 | 2015-05-28 | 苏州科沃斯商用机器人有限公司 | Automatic air release apparatus |
| CN106089679A (en) * | 2016-08-04 | 2016-11-09 | 兰州兰石集团有限公司 | The eccentric Double gear-ring bent axle of three grades of slush pump |
| CN106089679B (en) * | 2016-08-04 | 2018-04-03 | 兰州兰石石油装备工程股份有限公司 | Slush pump three-level bias Double gear-ring bent axle |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215168 Wuzhong District, Jiangsu, Stone Lake Road West, No. 108 Patentee after: ECOVACS ROBOTICS Co.,Ltd. Address before: 215168 Wuzhong District, Jiangsu, Stone Lake Road West, No. 108 Patentee before: ECOVACS ROBOTICS Co.,Ltd. Address after: 215168 Wuzhong District, Jiangsu, Stone Lake Road West, No. 108 Patentee after: ECOVACS ROBOTICS Co.,Ltd. Address before: 215168 Wuzhong District, Jiangsu, Stone Lake Road West, No. 108 Patentee before: ECOVACS ROBOTICS (SUZHOU) Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20210306 |
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| CF01 | Termination of patent right due to non-payment of annual fee |