CN104295559A - Hydraulic damping cylinder and pneumatic driving device comprising damping cylinder as well as wiper - Google Patents
Hydraulic damping cylinder and pneumatic driving device comprising damping cylinder as well as wiper Download PDFInfo
- Publication number
- CN104295559A CN104295559A CN201410526700.4A CN201410526700A CN104295559A CN 104295559 A CN104295559 A CN 104295559A CN 201410526700 A CN201410526700 A CN 201410526700A CN 104295559 A CN104295559 A CN 104295559A
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- damping
- cylinder
- piston
- hole
- hydraulic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/04—Wipers or the like, e.g. scrapers
- B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
- B60S1/10—Wipers or the like, e.g. scrapers characterised by the drive pneumatically driven
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Abstract
The invention relates to a hydraulic damping cylinder and a pneumatic driving device comprising the damping cylinder as well as a wiper. The hydraulic damping cylinder comprises a damping cylinder body, a damping gear, and a damping piston which is capable of moving left and right in the piston chamber of the damping cylinder body, wherein the damping piston is engaged with the damping gear for transmission by use of a rack arranged on the damping piston and extending in the left-and-right direction; an oil return channel is further formed in the damping piston and used for communicating left and right oil chambers located at the two ends of the damping piston; the oil return channel is provided with a damping hole structure; the inner hole of the damping gear is a mounting hole for a corresponding power output shaft. The pneumatic driving device is capable of improving the motion stability and the stop position accuracy of the output shaft of a rotary oscillating cylinder when the rotary oscillating cylinder works fast by virtue of the incompressibility of the hydraulic oil in the hydraulic damping cylinder, and further improving the motion stability and the stop position accuracy of a wiper assembly and the motion reliability of the wiper.
Description
Technical field
The present invention relates to hydraulic damping cylinder and use pneumatic actuating device and the Windshield Wiper of this damped cylinder.
Background technique
The pure pneumatically controlled windscreen wiper motor of a kind of rail locomotive is disclosed in Chinese patent literature CN203681493U, the drive unit of Windshield Wiper is rotary oscillation cylinder, rotary oscillation cylinder has output torque and locking moment is large, the feature of speed-regulating range width, but simultaneously again because the power source of rotary oscillation cylinder is compressible gas, the feed speed of piston is made to be difficult to control, easy generation vibration, causes rain brush to swing not steady.Especially, under the working condition of rotary oscillation cylinder rapid operation, when rain brush commutation swings, often because the effect of inertia of rotary oscillation cylinder makes rain brush generation impact position phenomenon, rain brush is damaged.Like this, the drive unit of existing Windshield Wiper just cannot meet the usage requirement of the above rail motor set of speed per hour 300km/h.
And the power source of oil hydraulic cylinder is incompressible hydraulic oil, its piston there will not be " creeping ", " certainly walking " phenomenon of cylinder piston, moves more steady.In order to accurately control operating rate and the position of rotary oscillation cylinder, make the motion of rain brush assembly more steady, this just requires characteristic in conjunction with rail motor set windscreen wiper and Environmental Conditions, exploitation has the Windshield Wiper of hydraulic damping cylinder, solve in cylinder operation process due to " creeping ", " certainly walking " phenomenon that gas compressibility causes, make rotary oscillation cylinder when rapid operation, rain brush assembly swings steadily, improves the operational reliability of Windshield Wiper.
Summary of the invention
The object of this invention is to provide can with the hydraulic damping cylinder of rotary oscillation cylinder conbined usage, the object of rain brush assembly easy motion during to realize rotary oscillation cylinder rapid operation.Meanwhile, present invention also offers the pneumatic actuating device using this damped cylinder and Windshield Wiper.
For achieving the above object, the present invention adopts following technological scheme: hydraulic damping cylinder, the damping piston comprising resistance cylinders, damping gear and move left and right in the piston cavity of resistance cylinders, damping piston by it arrange the tooth bar extended in left-right direction and damping gear engagement driving; Damping piston is also provided with the drainback passage for being communicated with the left and right oil pocket being positioned at damping piston two ends, and drainback passage is provided with damping hole structure; The endoporus of damping gear is the mounting hole of corresponding pto＝power take-off.
Described damping hole structure comprises the plug screw of spinning on described drainback passage, and plug screw offers damping hole.
Described resistance cylinders comprises damped cylinder body and the cylinder cap of spinning at damped cylinder body two ends, and cylinder cap is provided with oil hole, and oil hole is installed with blocking.
Pneumatic actuating device, comprise rotary oscillation cylinder, this pneumatic actuating device also comprises hydraulic damping cylinder, the damping piston that hydraulic damping cylinder comprises resistance cylinders, damping gear and moves left and right in the piston cavity of resistance cylinders, damping piston by it arrange the tooth bar extended in left-right direction and damping gear engagement driving; Damping piston is also provided with the drainback passage for being communicated with the left and right oil pocket being positioned at damping piston two ends, drainback passage is provided with damping hole structure; The output shaft of rotary oscillation cylinder stretches in resistance cylinders, and described damping gear is arranged on the mounting end of output shaft, and the cylinder body of rotary oscillation cylinder is together with resistance cylinders releasable connection.
Described damping hole structure comprises the plug screw of spinning on described drainback passage, and plug screw offers damping hole.
Described resistance cylinders comprises damped cylinder body and the cylinder cap of spinning at damped cylinder body two ends, and cylinder cap is provided with oil hole, and oil hole is installed with blocking.
Windshield Wiper, comprise rain brush assembly and pneumatic actuating device, described pneumatic actuating device comprises rotary oscillation cylinder, described rain brush assembly is arranged on the output terminal of the output shaft of rotary oscillation cylinder, described pneumatic actuating device also comprises hydraulic damping cylinder, the damping piston that described hydraulic damping cylinder comprises resistance cylinders, damping gear and moves left and right in the piston cavity of resistance cylinders, damping piston by it arrange the tooth bar extended in left-right direction and damping gear engagement driving; Damping piston is also provided with the drainback passage for being communicated with the left and right oil pocket being positioned at damping piston two ends, drainback passage is provided with damping hole structure; The output shaft of described rotary oscillation cylinder stretches in resistance cylinders, and described damping gear is arranged on the mounting end of output shaft, and the cylinder body of rotary oscillation cylinder is together with resistance cylinders releasable connection.
Described damping hole structure comprises the plug screw of spinning on described drainback passage, and plug screw offers damping hole.
Described resistance cylinders comprises damped cylinder body and the cylinder cap of spinning at damped cylinder body two ends, and cylinder cap is provided with oil hole, and oil hole is installed with blocking.
Windshield Wiper of the present invention is by arranging the hydraulic damping cylinder together with the releasable connection of rotary oscillation cylinder, the gear of hydraulic damping cylinder is arranged on the output shaft of rotary oscillation cylinder, the pto＝power take-off of such rotary oscillation cylinder is as the power input shaft of hydraulic damping cylinder, utilize the incompressible characteristic of hydraulic oil, when rotary oscillation cylinder rapid operation, improve robust motion and the off-position accuracy of the pto＝power take-off of rotary oscillation cylinder, and then realize the robust motion improving rain brush assembly, the operational reliability of off-position accuracy and Windshield Wiper, simultaneously to remain again the use moment of the drive unit of this Windshield Wiper large for this set, speed-regulating range width, pattern controls simple, pipeline connects simple advantage.In addition, hydraulic damping cylinder and rotary oscillation cylinder are combined arrange also make the pneumatic actuating device of this Windshield Wiper simple and compact for structure, be convenient to install, reduce manufacture and operating cost, turn improve the integration degree of this Windshield Wiper.
Further, hydraulic damping cylinder of the present invention is by spinning plug screw on drainback passage, and damping hole is offered on plug screw, such user can according to the user demand of different places, the adjustment of the pore size of damping hole is realized by changing the plug screw being provided with the damping hole of different pore size, realize the pressure difference of two oil pockets of both sides, damping adjusting hole further, to reach the damping function in various degree regulated the output shaft of oscillating cylinder, this structure is simple, be conducive to cutting down finished cost, and easy to use, be convenient to change.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment when using state of hydraulic damping cylinder in the present invention, simultaneously or the structural representation of a kind of embodiment of pneumatic actuating device;
Fig. 2 is the A-A sectional view of Fig. 1.
In figure, each reference character name is called: 1 blocking, 2 plug for seal circles, 3 cylinder caps, 4 cylinder cap seal rings, 5 damped cylinder bodies, 6 damping pistons, 7 plug screws, 8 piston packings, 9 support rings, 10 output shafts, 11 damping gears, 12 rotary oscillation cylinders.
Embodiment
Hydraulic damping cylinder as shown in Figure 2, the damping piston 6 comprising resistance cylinders and move left and right in the piston cavity of resistance cylinders, damping piston 6 is provided with the tooth bar extended in left-right direction, this tooth bar and damping gear 11 engagement driving be arranged in resistance cylinders, the endoporus of damping gear is the mounting hole of corresponding pto＝power take-off.
Resistance cylinders comprises damped cylinder body and is arranged on the cylinder cap 3 at two ends, left and right of damped cylinder body, and two cylinder cap spirals are arranged on damped cylinder body 5 by conveniently dismounting, and runs through on two cylinder caps and have oil hole, and on oil hole, blocking 1 installed by spiral.Resistance cylinders is divided into two oil pockets by damping piston 6, namely the left oil pocket at the left and right two ends of damping piston, right oil pocket is laid respectively at, in order to prevent hydraulic oil in oil pocket to outward leakage, cylinder cap seal ring 4 is installed between cylinder cap and the inwall of damped cylinder body, between oil hole and blocking 1, plug for seal circle 2 is installed.Certainly, in other embodiments, above-mentioned oil hole also can only be arranged on a cylinder cap, or is arranged on damped cylinder body 5.
Above-mentioned damping piston 6 is also provided with the drainback passage for being communicated with two oil pockets, drainback passage is provided with damping hole structure.The conveniently pore size in damping adjusting hole, this damping hole structure comprises the plug screw 7 of spinning in the right-hand end of drainback passage, and plug screw 7 offers damping hole.Certainly, in other embodiments, the above-mentioned all right spinning of plug screw 7 is in the arbitrary position of the drainback passages such as the middle part of drainback passage or left end.
In order to prevent hydraulic oil from revealing, this hydraulic damping cylinder is also provided with piston packing 8 between damping piston 6 and the inwall of damped cylinder body.Wearing and tearing between damping piston 6 and the inwall of damped cylinder body, are also provided with support ring 9 on damping piston 6.
Pneumatic actuating device as shown in Figure 1, comprises rotary oscillation cylinder 12 and hydraulic damping cylinder, and the structure of hydraulic damping cylinder is consistent with the structure of the hydraulic damping cylinder shown in Fig. 2, does not repeat them here.The cylinder piston that rotary oscillation cylinder comprises cylinder block, output shaft 10 and moves left and right in cylinder block, output shaft 10 rotates and is arranged in cylinder block, output shaft has mounting end and the output terminal for Power output, and cylinder piston is by the tooth bar that it is arranged and the gear cylinder engagement driving of mounting end being arranged on output shaft.The cylinder body of rotary oscillation cylinder 12 is together with resistance cylinders releasable connection, and output shaft stretches in resistance cylinders, and above-mentioned damping gear 11 is arranged on the mounting end of output shaft by the endoporus on it.
Windshield Wiper of the present invention is primarily of rain brush assembly and pneumatic actuating device composition, and rain brush assembly comprises rain brush, brush holder support and support, and one end and the rain brush of brush holder support link together, and the other end and the support of brush holder support link together.Above-mentioned pneumatic actuating device is consistent with the pneumatic actuating device structure shown in Fig. 1, does not repeat them here.The support installing of above-mentioned rain brush assembly is on the output terminal of the output shaft of rotary oscillation cylinder.
Working principle of the present invention: rotary oscillation cylinder 12 is drive unit, the output shaft 10 of rotary oscillation cylinder rotates and drives damping gear 11 to rotate, the convert rotational motion of damping gear 11 is the straight line motion of damping piston 6 by damping gear 11 and the tooth bar engagement driving on damping piston.When damping gear 11 rotates counterclockwise, damping piston 6 moves right, and damping piston 6 extrudes right oil pocket, and the hydraulic oil in right oil pocket flows into left oil pocket by drainback passage and through the damping hole of plug screw from right oil pocket; When damping gear 11 rotates clockwise, damping piston 6 is moved to the left, and damping piston 6 extrudes left oil pocket, and the hydraulic oil in left oil pocket flows into right oil pocket by drainback passage and through the damping hole of plug screw from left oil pocket.When hydraulic oil produces damping function through the damping hole of plug screw, because the diameter installing the tapped hole at plug screw place corresponding on drainback passage is fixed value, the plug screw of the replaceable identical diameter of thread, due to varying in size of the damping hole on each plug screw, just can the size of regulator solution force feed damping function easily by changing plug screw.
Be more than the preferred embodiments of the present invention, in other embodiments, above-mentioned damping hole structure can also be the nonadjustable damping hole be arranged on drainback passage.Certainly, those skilled in the art also can in varied situations, and carry out equivalent replacement according to the design general knowledge of related domain, it is all within protection scope of the present invention.
Claims (9)
1. hydraulic damping cylinder, is characterized in that: the damping piston comprising resistance cylinders, damping gear and move left and right in the piston cavity of resistance cylinders, damping piston by it arrange the tooth bar extended in left-right direction and damping gear engagement driving; Damping piston is also provided with the drainback passage for being communicated with the left and right oil pocket being positioned at damping piston two ends, and drainback passage is provided with damping hole structure; The endoporus of damping gear is the mounting hole of corresponding pto＝power take-off.
2. hydraulic damping cylinder according to claim 1, is characterized in that: described damping hole structure comprises the plug screw of spinning on described drainback passage, and plug screw offers damping hole.
3. hydraulic damping cylinder according to claim 1 and 2, is characterized in that: described resistance cylinders comprises damped cylinder body and the cylinder cap of spinning at damped cylinder body two ends, and cylinder cap is provided with oil hole, and oil hole is installed with blocking.
4. pneumatic actuating device, comprise rotary oscillation cylinder, it is characterized in that: this pneumatic actuating device also comprises hydraulic damping cylinder, the damping piston that hydraulic damping cylinder comprises resistance cylinders, damping gear and moves left and right in the piston cavity of resistance cylinders, damping piston by it arrange the tooth bar extended in left-right direction and damping gear engagement driving; Damping piston is also provided with the drainback passage for being communicated with the left and right oil pocket being positioned at damping piston two ends, drainback passage is provided with damping hole structure; The output shaft of rotary oscillation cylinder stretches in resistance cylinders, and described damping gear is arranged on the mounting end of output shaft, and the cylinder body of rotary oscillation cylinder is together with resistance cylinders releasable connection.
5. pneumatic actuating device according to claim 4, is characterized in that: described damping hole structure comprises the plug screw of spinning on described drainback passage, and plug screw offers damping hole.
6. the pneumatic actuating device according to claim 4 or 5, is characterized in that: described resistance cylinders comprises damped cylinder body and the cylinder cap of spinning at damped cylinder body two ends, and cylinder cap is provided with oil hole, and oil hole is installed with blocking.
7. Windshield Wiper, comprise rain brush assembly and pneumatic actuating device, described pneumatic actuating device comprises rotary oscillation cylinder, described rain brush assembly is arranged on the output terminal of the output shaft of rotary oscillation cylinder, it is characterized in that: described pneumatic actuating device also comprises hydraulic damping cylinder, the damping piston that described hydraulic damping cylinder comprises resistance cylinders, damping gear and moves left and right in the piston cavity of resistance cylinders, damping piston by it arrange the tooth bar extended in left-right direction and damping gear engagement driving; Damping piston is also provided with the drainback passage for being communicated with the left and right oil pocket being positioned at damping piston two ends, drainback passage is provided with damping hole structure; The output shaft of described rotary oscillation cylinder stretches in resistance cylinders, and described damping gear is arranged on the mounting end of output shaft, and the cylinder body of rotary oscillation cylinder is together with resistance cylinders releasable connection.
8. Windshield Wiper according to claim 7, is characterized in that: described damping hole structure comprises the plug screw of spinning on described drainback passage, and plug screw offers damping hole.
9. the Windshield Wiper according to claim 7 or 8, is characterized in that: described resistance cylinders comprises damped cylinder body and the cylinder cap of spinning at damped cylinder body two ends, and cylinder cap is provided with oil hole, and oil hole is installed with blocking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410526700.4A CN104295559B (en) | 2014-10-09 | 2014-10-09 | Hydraulic damping cylinder and pneumatic driving device comprising damping cylinder as well as wiper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410526700.4A CN104295559B (en) | 2014-10-09 | 2014-10-09 | Hydraulic damping cylinder and pneumatic driving device comprising damping cylinder as well as wiper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104295559A true CN104295559A (en) | 2015-01-21 |
| CN104295559B CN104295559B (en) | 2017-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410526700.4A Active CN104295559B (en) | 2014-10-09 | 2014-10-09 | Hydraulic damping cylinder and pneumatic driving device comprising damping cylinder as well as wiper |
Country Status (1)
| Country | Link |
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| CN (1) | CN104295559B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570430A (en) * | 2016-01-29 | 2016-05-11 | 东莞禾盈通用零部件有限公司 | Bidirectional damping gear |
| CN106946196A (en) * | 2017-05-03 | 2017-07-14 | 浙江金洲管道科技股份有限公司 | A kind of pipe fitting Bidirectional up-down transfer machine |
| CN106965776A (en) * | 2017-05-16 | 2017-07-21 | 无锡市华通气动制造有限公司 | A kind of pneumatic actuating device of wiper |
| CN108999833A (en) * | 2018-08-31 | 2018-12-14 | 北京万高众业科技股份有限公司 | A kind of air cylinder structure and locomotive |
| CN109340215A (en) * | 2018-12-04 | 2019-02-15 | 四川凌峰航空液压机械有限公司 | Built-in damping pneumatic actuator |
Citations (7)
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|---|---|---|---|---|
| GB517441A (en) * | 1938-07-27 | 1940-01-30 | William Edward O Shei | Improvements in or relating to fluid operated windscreen wiper motors |
| US3257910A (en) * | 1964-06-19 | 1966-06-28 | Bendix Westinghouse Automotive | Windshield wiper air motor |
| CN87210211U (en) * | 1987-07-16 | 1988-06-01 | 吉林工业大学 | Damping device for automobile pneumatic windshield wiper |
| CN103511538A (en) * | 2013-10-11 | 2014-01-15 | 浙江正星健身器有限公司 | Torsional oil cylinder |
| CN203500362U (en) * | 2013-10-11 | 2014-03-26 | 浙江正星健身器有限公司 | Damping pressure regulating mechanism of torsion oil cylinder |
| CN203832437U (en) * | 2014-05-30 | 2014-09-17 | 宁波鑫海爱多汽车雨刷制造有限公司 | Driving mechanism of pneumatic wiper |
| CN204186688U (en) * | 2014-10-09 | 2015-03-04 | 平原机器厂（新乡） | A kind of hydraulic damping cylinder and use pneumatic actuating device and the Windshield Wiper of this damped cylinder |
-
2014
- 2014-10-09 CN CN201410526700.4A patent/CN104295559B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB517441A (en) * | 1938-07-27 | 1940-01-30 | William Edward O Shei | Improvements in or relating to fluid operated windscreen wiper motors |
| US3257910A (en) * | 1964-06-19 | 1966-06-28 | Bendix Westinghouse Automotive | Windshield wiper air motor |
| CN87210211U (en) * | 1987-07-16 | 1988-06-01 | 吉林工业大学 | Damping device for automobile pneumatic windshield wiper |
| CN103511538A (en) * | 2013-10-11 | 2014-01-15 | 浙江正星健身器有限公司 | Torsional oil cylinder |
| CN203500362U (en) * | 2013-10-11 | 2014-03-26 | 浙江正星健身器有限公司 | Damping pressure regulating mechanism of torsion oil cylinder |
| CN203832437U (en) * | 2014-05-30 | 2014-09-17 | 宁波鑫海爱多汽车雨刷制造有限公司 | Driving mechanism of pneumatic wiper |
| CN204186688U (en) * | 2014-10-09 | 2015-03-04 | 平原机器厂（新乡） | A kind of hydraulic damping cylinder and use pneumatic actuating device and the Windshield Wiper of this damped cylinder |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570430A (en) * | 2016-01-29 | 2016-05-11 | 东莞禾盈通用零部件有限公司 | Bidirectional damping gear |
| CN105570430B (en) * | 2016-01-29 | 2018-05-01 | 东莞禾盈通用零部件有限公司 | A kind of bidirectional damper gear |
| CN106946196A (en) * | 2017-05-03 | 2017-07-14 | 浙江金洲管道科技股份有限公司 | A kind of pipe fitting Bidirectional up-down transfer machine |
| CN106946196B (en) * | 2017-05-03 | 2022-09-23 | 浙江金洲管道科技股份有限公司 | Pipe fitting bidirectional lifting transfer machine |
| CN106965776A (en) * | 2017-05-16 | 2017-07-21 | 无锡市华通气动制造有限公司 | A kind of pneumatic actuating device of wiper |
| CN108999833A (en) * | 2018-08-31 | 2018-12-14 | 北京万高众业科技股份有限公司 | A kind of air cylinder structure and locomotive |
| CN108999833B (en) * | 2018-08-31 | 2024-01-30 | 北京万高众业科技股份有限公司 | Cylinder structure and locomotive |
| CN109340215A (en) * | 2018-12-04 | 2019-02-15 | 四川凌峰航空液压机械有限公司 | Built-in damping pneumatic actuator |
| CN109340215B (en) * | 2018-12-04 | 2023-09-26 | 四川凌峰航空液压机械有限公司 | Pneumatic actuator with built-in damping |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104295559B (en) | 2017-01-25 |
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Address after: 453000 Jiefang Road, Henan, Xinxiang, No. 1 Patentee after: Xinxiang Pingyuan Aviation Equipment Co., Ltd. Address before: 453000 Jiefang Road, Henan, Xinxiang, No. 1 Patentee before: Pingyuan Machine Factory (Xinxiang) |
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Effective date of registration: 20190805 Address after: No. 168 Jianzhong Road, Xinxiang City, Henan Province, 453000 Patentee after: Xinxiang Aviation Industry (Group) Co., Ltd. Address before: 453000 Jiefang Road, Henan, Xinxiang, No. 1 Patentee before: Xinxiang Pingyuan Aviation Equipment Co., Ltd. |
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