CN214296422U - Windshield wiper oscillating device - Google Patents
Windshield wiper oscillating device Download PDFInfo
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- CN214296422U CN214296422U CN202022753503.XU CN202022753503U CN214296422U CN 214296422 U CN214296422 U CN 214296422U CN 202022753503 U CN202022753503 U CN 202022753503U CN 214296422 U CN214296422 U CN 214296422U
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- connecting rod
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- eccentric
- output shaft
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Abstract
The invention relates to a windshield wiper swinging device, belonging to the field of windshield wipers; the eccentric shaft connecting device comprises a motor part, a connecting rod assembly, a bearing, a shell and an eccentric shaft; the motor part is used for providing power for the whole device; the lower end of the eccentric shaft is a cylindrical shaft, the upper end of the eccentric shaft is provided with an eccentric bulge, and the axial direction of the eccentric bulge is parallel to the axial direction of the cylindrical shaft but does not coincide with the axial direction of the cylindrical shaft; the cylindrical shaft is arranged at one end in the shell through a bearing and is coaxially connected with an output shaft of the motor part; the connecting rod assembly comprises an output shaft and a connecting rod, one end of the connecting rod is coaxially fixed in the middle of the output shaft, and the other end of the connecting rod is provided with an extension hole along the length direction; two ends of an output shaft of the connecting rod assembly are respectively arranged at the other end in the shell through bearings, and the axial direction of the output shaft of the connecting rod assembly is parallel to the axial direction of a cylindrical shaft of the eccentric shaft; the extension hole of the connecting rod is sleeved on the eccentric bulge of the eccentric shaft, and the connecting rod is driven by the eccentric bulge to reciprocate so as to drive the windshield wiper to swing. The invention realizes the swinging of the brush piece of the brush arm by rotating the eccentric shaft and driving the connecting rod part at the same time.
Description
Technical Field
The invention belongs to the field of wipers, and particularly relates to a windshield wiper swinging device.
Background
The windshield wipers of the airplane are usually arranged at the front windshield of a cockpit, and the wiper arms and the wiper blades perform reciprocating swing, so that rainwater, snow and dirt on the windshield can be removed, and the clear vision of a driver is ensured. Based on this, it is important to solve the problems of wiping angle, frequency, etc. in the design of the wiper.
The existing windshield wiper realizes that a wiping mechanism is a four-bar mechanism, the output of a motor drives a worm and a worm wheel to rotate, an eccentric wheel performs circular motion through gear reduction and transmission and is connected with a link rod, the other end of the link rod is matched with an eccentric shaft, and the motion track of the eccentric shaft is swing according to the characteristics of a crank rocker mechanism. The mechanism is generally applied to the front windshield of military and civil aircraft at present, and has the advantages of complex structure, large volume and heavy weight.
The invention is connected with the annular groove of the connecting rod through the eccentric shaft to rotate, drives the output shaft to swing so as to realize the swing of the windshield wiper, and has simple structure, small volume and light weight.
Disclosure of Invention
The technical problem to be solved is as follows:
in order to avoid the defects in the prior art, the invention provides the windshield wiper swinging device, the scraping and brushing are realized by the matching installation of the protrusions on the eccentric shaft and the extension holes of the connecting rods, the problems of volume and weight are solved, and the processing difficulty is reduced.
The technical scheme of the invention is as follows: an oscillating device for a windscreen wiper, comprising a motor part for powering the entire device; the method is characterized in that: the eccentric shaft is connected with the eccentric shaft through a connecting rod; the connecting rod assembly and the eccentric shaft are both arranged in the shell through bearings;
the lower end of the eccentric shaft is a cylindrical shaft, the upper end of the eccentric shaft is provided with an eccentric bulge, and the axial direction of the eccentric bulge is parallel to the axial direction of the cylindrical shaft but does not coincide with the axial direction of the cylindrical shaft; the cylindrical shaft is arranged at one end in the shell through a bearing and is coaxially connected with an output shaft of the motor part;
the connecting rod assembly comprises an output shaft and a connecting rod, the connecting rod is perpendicular to the output shaft, one end of the connecting rod is coaxially fixed in the middle of the output shaft, and the other end of the connecting rod is provided with an extension hole along the length direction; two ends of an output shaft of the connecting rod assembly are respectively arranged at the other end in the shell through bearings, and the axial direction of the output shaft of the connecting rod assembly is parallel to the axial direction of a cylindrical shaft of the eccentric shaft; the extension hole of the connecting rod is sleeved on the eccentric bulge of the eccentric shaft, and the connecting rod is driven to reciprocate through the eccentric bulge, so that the windshield wiper is driven to swing.
The further technical scheme of the invention is as follows: the casing is a box structure with an opening at one end, the opening end of the casing is closed through a casing cover, and the upper end of an output shaft of the connecting rod assembly is rotatably connected with the casing cover through a bearing.
The further technical scheme of the invention is as follows: the outer wall surface of one end, where the connecting rod assembly is mounted, of the shell cover is fixedly provided with a sleeve, the axial direction of the sleeve is perpendicular to the shell cover, and an output shaft of the connecting rod assembly penetrates out of the sleeve and is connected with the wiper rod.
The further technical scheme of the invention is as follows: the outer peripheral surface of the opening end of the shell and the outer peripheral surface of the shell cover are both provided with a plurality of lugs along the circumferential direction, through holes are formed in the lugs, and the shell cover are fixed through bolt and nut fixing.
The further technical scheme of the invention is as follows: the output shaft of the connecting rod assembly is a stepped shaft, and a shaft shoulder is arranged in the middle of the connecting rod assembly and used for limiting the axial direction of the connecting rod.
Advantageous effects
The invention has the beneficial effects that: the invention realizes the swinging of the brush arm and the brush piece by rotating the eccentric shaft and driving the connecting rod part at the same time; compared with the existing four-bar linkage mechanism of the windshield wiper of the military aircraft, the transmission of the invention reduces the number of parts and the number of link stages, and reduces the cost. Meanwhile, the reliability of the product is improved, and the processing is easier. In addition, the device has simple structure, small, light in weight's characteristics, and holistic implementation using value is high.
Drawings
FIG. 1 is a schematic view of a windscreen wiper oscillating device according to the invention;
FIG. 2 is a connecting rod assembly according to the present invention;
FIG. 3 is a housing cover of the present invention;
FIG. 4 is an eccentric shaft of the present invention;
fig. 5 is an overall view of a windscreen wiper according to the invention.
Description of reference numerals: 1-a connecting-rod assembly; 2-a housing cover; 3-a first bearing; 4-a shell; 5-a motor part; 6-a second bearing; 7-an eccentric shaft; 8-a third bearing; 11-an output shaft; 12-a connecting rod; 13-connecting rod extension hole; 71-eccentric shaft eccentric bulge.
Detailed Description
The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
Referring to fig. 1, the oscillating device of a windscreen wiper according to the invention comprises a motor portion 5, a connecting-rod assembly 1, bearings, a casing 4 and an eccentric shaft 7; the connecting rod assembly 1 and the eccentric shaft 7 are both arranged in the shell 4 through bearings;
referring to fig. 4, the lower end of the eccentric shaft 7 is a cylindrical shaft, and the upper end is provided with an eccentric bulge, wherein the axial direction of the eccentric bulge is parallel to the axial direction of the cylindrical shaft but is not coincident with the axial direction of the cylindrical shaft; the cylindrical shaft is arranged at one end in the shell through a bearing and is coaxially connected with an output shaft of the motor part 5;
referring to fig. 2, the connecting rod assembly 1 includes an output shaft 11 and a connecting rod 12, the connecting rod 12 is perpendicular to the output shaft 11, one end of the connecting rod 12 is coaxially fixed in the middle of the output shaft 11, and the other end of the connecting rod 12 is provided with an extension hole 13 along the length direction; two ends of an output shaft 11 of the connecting rod component 1 are respectively arranged at the other end in the shell through a first bearing 3 and a third bearing 8, and the axial direction of the output shaft is parallel to the axial direction of a cylindrical shaft of the eccentric shaft 7; the extension hole of the connecting rod 12 is sleeved on the eccentric bulge of the eccentric shaft, and the connecting rod is driven by the eccentric bulge to do reciprocating swing so as to drive the windshield wiper to swing.
When the motor part 5 is installed, the main shaft of the eccentric shaft 7 is connected with the main shaft of the eccentric shaft 7, and the main shaft of the eccentric shaft 7 is matched with the hole shaft of the shell 4 through the second bearing 6 to realize the rotary motion of the eccentric shaft 7; the connecting rod component 1 is formed by matching a connecting rod 11 and an output shaft 12 (figure 2), an extension hole 13 at one end of the connecting rod component is sleeved at an eccentric bulge of the eccentric shaft 7 to realize the swinging of the connecting rod, the other end of the connecting rod 12 is connected with a third bearing 8 to be matched with the shell cover 2, and meanwhile, the output shaft 11 is connected with a bearing 3 to be matched with the shell 4 to realize the limit swinging of the output shaft 11 end of the connecting rod component 1. And the end of the output shaft 11 is matched with the scraping and brushing device to realize the swinging of the brush blade of the brush arm. Under the power-on state, the motor part rotates to drive the eccentric shaft 7 to rotate, the eccentric shaft eccentric bulge 71 also makes linear reciprocating motion in the connecting rod extension hole 13 through rotation, and drives the output shaft 11 end of the connecting rod part 1 to make reciprocating swing, and finally scraping and brushing are achieved.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.
Claims (5)
1. An oscillating device for a windscreen wiper, comprising a motor part for powering the entire device; the method is characterized in that: the eccentric shaft is connected with the eccentric shaft through a connecting rod; the connecting rod assembly and the eccentric shaft are both arranged in the shell through bearings;
the lower end of the eccentric shaft is a cylindrical shaft, the upper end of the eccentric shaft is provided with an eccentric bulge, and the axial direction of the eccentric bulge is parallel to the axial direction of the cylindrical shaft but does not coincide with the axial direction of the cylindrical shaft; the cylindrical shaft is arranged at one end in the shell through a bearing and is coaxially connected with an output shaft of the motor part;
the connecting rod assembly comprises an output shaft and a connecting rod, the connecting rod is perpendicular to the output shaft, one end of the connecting rod is coaxially fixed in the middle of the output shaft, and the other end of the connecting rod is provided with an extension hole along the length direction; two ends of an output shaft of the connecting rod assembly are respectively arranged at the other end in the shell through bearings, and the axial direction of the output shaft of the connecting rod assembly is parallel to the axial direction of a cylindrical shaft of the eccentric shaft; the extension hole of the connecting rod is sleeved on the eccentric bulge of the eccentric shaft, and the connecting rod is driven to reciprocate through the eccentric bulge, so that the windshield wiper is driven to swing.
2. The oscillating windshield wiper device as recited in claim 1 wherein: the casing is a box structure with an opening at one end, the opening end of the casing is closed through a casing cover, and the upper end of an output shaft of the connecting rod assembly is rotatably connected with the casing cover through a bearing.
3. The oscillating windshield wiper device as recited in claim 2 wherein: the outer wall surface of one end, where the connecting rod assembly is mounted, of the shell cover is fixedly provided with a sleeve, the axial direction of the sleeve is perpendicular to the shell cover, and an output shaft of the connecting rod assembly penetrates out of the sleeve and is connected with the wiper rod.
4. The oscillating windshield wiper device as recited in claim 1 wherein: the outer peripheral surface of the opening end of the shell and the outer peripheral surface of the shell cover are both provided with a plurality of lugs along the circumferential direction, through holes are formed in the lugs, and the shell cover are fixed through bolt and nut fixing.
5. The oscillating windshield wiper device as recited in claim 1 wherein: the output shaft of the connecting rod assembly is a stepped shaft, and a shaft shoulder is arranged in the middle of the connecting rod assembly and used for limiting the axial direction of the connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022753503.XU CN214296422U (en) | 2020-11-25 | 2020-11-25 | Windshield wiper oscillating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022753503.XU CN214296422U (en) | 2020-11-25 | 2020-11-25 | Windshield wiper oscillating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214296422U true CN214296422U (en) | 2021-09-28 |
Family
ID=77843824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022753503.XU Active CN214296422U (en) | 2020-11-25 | 2020-11-25 | Windshield wiper oscillating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214296422U (en) |
-
2020
- 2020-11-25 CN CN202022753503.XU patent/CN214296422U/en active Active
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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: A windshield wiper swing device Effective date of registration: 20211229 Granted publication date: 20210928 Pledgee: AVIC Finance Co.,Ltd. Xi'an Branch Pledgor: XI'AN QING'AN ELECTRIC CONTROL Co.,Ltd. Registration number: Y2021980017053 |
|
| 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 |
Date of cancellation: 20230106 Granted publication date: 20210928 Pledgee: AVIC Finance Co.,Ltd. Xi'an Branch Pledgor: XI'AN QING'AN ELECTRIC CONTROL Co.,Ltd. Registration number: Y2021980017053 |