CN104295559B - 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
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- CN104295559B CN104295559B CN201410526700.4A CN201410526700A CN104295559B CN 104295559 B CN104295559 B CN 104295559B CN 201410526700 A CN201410526700 A CN 201410526700A CN 104295559 B CN104295559 B CN 104295559B
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- damping
- cylinder
- piston
- hydraulic
- resistance cylinders
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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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 the pneumatic actuating device using this damped cylinder and wiper.
Background technology
Disclose a kind of pure pneumatically controlled windshield wiper motor of rail locomotive in Chinese patent literature cn203681493u, scrape water
The driving means of device are rotary oscillation cylinder, and rotary oscillation cylinder has output torque and locking moment is big, speed-regulating range width
Feature, but simultaneously again because the power source of rotary oscillation cylinder is compressible gas so that the feed speed of piston is difficult to control
System, easily produces vibration, leads to rain brush to swing unstable.Especially under the working condition of rotary oscillation cylinder rapid operation,
When rain brush commutation swings, often due to the effect of inertia of rotary oscillation cylinder makes rain brush produce impacted position phenomenon, damage rain
Brush.So, the driving means of existing wiper just cannot meet the use requirement of the above EMUs of speed per hour 300km/h.
And the power source of hydraulic cylinder is incompressible hydraulic oil, its piston is not in " the creeping " of cylinder piston, " oneself
Walk " phenomenon, move more steady.In order to accurately control operating rate and the position of rotary oscillation cylinder, make rain brush assembly
Motion is more steady, and this requires the characteristic and use environment with reference to EMUs windscreen wiper, and exploitation has hydraulic damping
The wiper of cylinder, " creeping ", " certainly walking " phenomenon being led to due to gas compressibility during solving cylinder operation, make revolution
In rapid operation, rain brush assembly swings the operational reliability steadily improving wiper to oscillating cylinder.
Content of the invention
It is an object of the invention to provide the hydraulic damping cylinder being used in combination with rotary oscillation cylinder, to realize rotary oscillation
The purpose of rain brush assembly easy motion during cylinder rapid operation.Meanwhile, present invention also offers using the pneumatic driving of this damped cylinder
Dynamic device and wiper.
For achieving the above object, the present invention adopts the following technical scheme that hydraulic damping cylinder, including resistance cylinders, damping tooth
Wheel and the damping piston that moves left and right of piston intracavity in resistance cylinders, what damping piston passed through to arrange thereon prolongs in left-right direction
The tooth bar stretched and damping gear engaged transmission；Damping piston is additionally provided with and is located at the left and right of damping piston two ends for connection
The drainback passage of oil pocket, drainback passage is provided with damping pore structure；The endoporus of damping gear is the peace of corresponding power output shaft
Dress hole.
Described damping pore structure includes plug screw on described drainback passage for the spinning, and plug screw offers damping hole.
Described resistance cylinders include the damped cylinder body and spinning cylinder cap at damped cylinder body two ends, and cylinder cap is provided with oiling
Hole, oil filler point is installed with blocking.
Pneumatic actuating device, including rotary oscillation cylinder, this pneumatic actuating device also includes hydraulic damping cylinder, hydraulic damping
Cylinder includes the damping piston that resistance cylinders, damping gear and the piston intracavity in resistance cylinders move left and right, and damping piston passes through
The tooth bar extending in left-right direction arranging thereon and damping gear engaged transmission；It is additionally provided with damping piston and be located at for connection
The drainback passage of the left and right oil pocket at damping piston two ends, drainback passage is provided with damping pore structure；The output of rotary oscillation cylinder
Shaft extension enters in resistance cylinders, and described damping gear is arranged on the installation end of output shaft, the cylinder body of rotary oscillation cylinder and resistance
Buddhist nun's cylinder body releasable connection is together.
Described damping pore structure includes plug screw on described drainback passage for the spinning, and plug screw offers damping hole.
Described resistance cylinders include the damped cylinder body and spinning cylinder cap at damped cylinder body two ends, and cylinder cap is provided with oiling
Hole, oil filler point is installed with blocking.
Wiper, including rain brush assembly and pneumatic actuating device, described pneumatic actuating device includes rotary oscillation cylinder,
On the outfan of output shaft that described rain brush assembly is arranged on rotary oscillation cylinder, described pneumatic actuating device also includes liquid
Pressure damped cylinder, described hydraulic damping cylinder includes resistance cylinders, damping gear and the piston intracavity in resistance cylinders and moves left and right
Damping piston, damping piston passes through the tooth bar extending in left-right direction that arranges thereon and damping gear engaged transmission；Damping
The drainback passage of the left and right oil pocket being located at damping piston two ends for connection is additionally provided with piston, drainback passage is provided with damping
Pore structure；The output shaft of described rotary oscillation cylinder stretches in resistance cylinders, and described damping gear is arranged on output shaft
On installation end, the cylinder body of rotary oscillation cylinder is together with resistance cylinders releasable connection.
Described damping pore structure includes plug screw on described drainback passage for the spinning, and plug screw offers damping hole.
Described resistance cylinders include the damped cylinder body and spinning cylinder cap at damped cylinder body two ends, and cylinder cap is provided with oiling
Hole, oil filler point is installed with blocking.
The wiper of the present invention passes through hydraulic damping cylinder together with rotary oscillation cylinder releasable connection for the setting, by hydraulic pressure
The gear of damped cylinder is arranged on the output shaft of rotary oscillation cylinder, and the power output shaft of such rotary oscillation cylinder is as hydraulic pressure
The power input shaft of damped cylinder, using the incompressible characteristic of hydraulic oil, in rotary oscillation cylinder rapid operation, improves revolution
The robust motion of the power output shaft of oscillating cylinder and off-position accuracy, and then realize improving the stable movement of rain brush assembly
The operational reliability of property, off-position accuracy and wiper, simultaneously this set remain making of the driving means of this wiper again
With moment is big, speed-regulating range width, action pattern control simple, pipeline to connect simple advantage.Additionally, by hydraulic damping cylinder and returning
Turn oscillating cylinder combination setting also so that the pneumatic actuating device of this wiper simple and compact for structure, be easily installed, reduce system
Make and operating cost, improve the integration degree of this wiper again.
Further, the hydraulic damping cylinder of the present invention passes through spinning plug screw on drainback passage, and opens up resistance on plug screw
Buddhist nun hole, such user can be according to the use demand of different places, by changing the plug screw of the damping hole being provided with different pore size
To realize the regulation of the pore size of damping hole, to realize the pressure differential of two oil pockets of damping adjusting hole both sides further, to reach
Arrive the different degrees of damping action adjusting the output shaft to oscillating cylinder, this structure is simple, advantageously reduces processing cost, and
Easy to use, it is conveniently replaceable.
Brief description
Fig. 1 is a kind of structural representation in use state for embodiment of hydraulic damping cylinder in the present invention, still simultaneously
A kind of structural representation of the embodiment of pneumatic actuating device；
Fig. 2 is the a-a sectional view of Fig. 1.
The each reference of in figure is entitled: 1 blocking, 2 plug for seal circles, 3 cylinder caps, 4 cylinder cap sealing rings, 5 damped cylinder bodies, and 6
Damping piston, 7 plug screws, 8 piston packings, 9 support rings, 10 output shafts, 11 damping gears, 12 rotary oscillation cylinders.
Specific embodiment
Hydraulic damping cylinder as shown in Figure 2, the resistance that moves left and right of piston intracavity including resistance cylinders with resistance cylinders
Buddhist nun's piston 6, damping piston 6 is provided with the tooth bar extending in left-right direction, this tooth bar and the damping tooth being arranged in resistance cylinders
Take turns 11 engaged transmission, the endoporus of damping gear is the installing hole of corresponding power output shaft.
Resistance cylinders include damped cylinder body and are arranged on the cylinder cap 3 at the left and right two ends of damped cylinder body, dismount for convenience, will
Two cylinder cap spirals are arranged on damped cylinder body 5, and run through on two cylinder caps and have oil filler point, on oil filler point spiral install stifled
Plug 1.Resistance cylinders are divided into two oil pockets by damping piston 6, are located at the left oil pocket at left and right two ends, the right side of damping piston respectively
Oil pocket, in order to prevent the hydraulic oil in oil pocket to outward leakage, is provided with cylinder cap sealing between the inwall of cylinder cap and damped cylinder body
Circle 4, is provided with plug for seal circle 2 between oil filler point and blocking 1.Certainly, in other embodiments, above-mentioned oil filler point also may be used
To be positioned only on a cylinder cap, or it is arranged on damped cylinder body 5.
Drainback passage for connecting two oil pockets is additionally provided with above-mentioned damping piston 6, drainback passage is provided with damping
Pore structure.The pore size in damping adjusting hole for convenience, this damping pore structure includes the right-hand end in drainback passage for the spinning
Plug screw 7, plug screw 7 opens up damping hole.Certainly, in other embodiments, above-mentioned plug screw 7 can be led in oil return with spinning
The optional position of the drainback passage such as the middle part in road or left end.
In order to prevent hydraulic oil from revealing, this hydraulic damping cylinder is arranged also between the inwall of damping piston 6 and damped cylinder body
Piston packing 8.In order to avoid the abrasion between the inwall of damping piston 6 and damped cylinder body, arrange also on damping piston 6
Support ring 9.
Pneumatic actuating device as shown in Figure 1, including rotary oscillation cylinder 12 and hydraulic damping cylinder, the knot of hydraulic damping cylinder
Structure is consistent with the structure of the hydraulic damping cylinder shown in Fig. 2, will not be described here.Rotary oscillation cylinder includes cylinder block, output
Axle 10 and the cylinder piston moving left and right in cylinder block, output shaft 10 is rotatably arranged in cylinder block, and output shaft has
Installation end and the outfan for power output, cylinder piston passes through the tooth bar arranging thereon and the installation end being arranged on output shaft
Gear cylinder engaged transmission.Together with resistance cylinders releasable connection, output shaft stretches into resistance to the cylinder body of rotary oscillation cylinder 12
In Buddhist nun's cylinder body, above-mentioned damping gear 11 is arranged on the installation end of output shaft by endoporus thereon.
The wiper of the present invention is mainly made up of rain brush assembly and pneumatic actuating device, and rain brush assembly includes rain brush, brush holder support
And support, one end of brush holder support and rain brush link together, and the other end of brush holder support and support link together.Above-mentioned pneumatic actuation dress
Put consistent with the pneumatic actuating device structure shown in Fig. 1, will not be described here.The support of above-mentioned rain brush assembly is arranged on revolution
On the outfan of the output shaft of oscillating cylinder.
The operation principle of the present invention: rotary oscillation cylinder 12 is driving means, the output shaft 10 of rotary oscillation cylinder rotates
And driving damping gear 11 to rotate, the tooth bar engaged transmission on damping gear 11 and damping piston, by the rotation of damping gear 11
Conversion of motion is the linear motion of damping piston 6.When damping gear 11 rotates counterclockwise, damping piston 6 moves right, damping
Piston 6 extrudes right oil pocket, and the hydraulic oil in right oil pocket passes through drainback passage and the damping hole through plug screw flows into left oil from right oil pocket
Chamber；When damping gear 11 rotates clockwise, damping piston 6 is moved to the left, and damping piston 6 extrudes left oil pocket, in left oil pocket
Hydraulic oil passes through drainback passage and the damping hole through plug screw flows into right oil pocket from left oil pocket.When hydraulic oil is through the damping hole of plug screw
When produce damping action, due to a diameter of fixed value installing the screwed hole at plug screw corresponding on drainback passage, replaceable identical
The diameter of thread plug screw, of different sizes due to the damping hole on each plug screw, can easily be adjusted by changing plug screw
The size of hydraulic oil damping action.
It is the preferred embodiments of the present invention above, in other embodiments, above-mentioned damping pore structure can also be setting
Nonadjustable damping hole on drainback passage.Certainly, those skilled in the art can also in varied situations, according to this area
Design general knowledge carry out equivalent, it is all within protection scope of the present invention.
Claims (9)
1. hydraulic damping cylinder it is characterised in that: include resistance cylinders, damping gear and about the piston intracavity of resistance cylinders move
Dynamic damping piston, damping piston passes through the tooth bar extending in left-right direction arranging thereon and damping gear engaged transmission；?
The drainback passage of the left and right oil pocket being located at damping piston two ends for connection is additionally provided with damping piston, drainback passage is provided with
Damping pore structure；The endoporus of damping gear is the installing hole of corresponding power output shaft.
2. hydraulic damping cylinder according to claim 1 it is characterised in that: described damping pore structure includes spinning described
Plug screw on drainback passage, plug screw offers damping hole.
3. hydraulic damping cylinder according to claim 1 and 2 it is characterised in that: described resistance cylinders include damped cylinder body
With the cylinder cap at damped cylinder body two ends for the spinning, cylinder cap is provided with oil filler point, oil filler point is installed with blocking.
4. pneumatic actuating device, including rotary oscillation cylinder it is characterised in that: this pneumatic actuating device also includes hydraulic damping
Cylinder, hydraulic damping cylinder includes the damping piston that resistance cylinders, damping gear and the piston intracavity in resistance cylinders move left and right, resistance
Buddhist nun's piston passes through the tooth bar extending in left-right direction arranging thereon and damping gear engaged transmission；Use is additionally provided with damping piston
It is located at the drainback passage of the left and right oil pocket at damping piston two ends in connection, drainback passage is provided with damping pore structure；Rotary oscillation
The output shaft of cylinder stretches in resistance cylinders, and described damping gear is arranged on the installation end of output shaft, rotary oscillation cylinder
Cylinder body together with resistance cylinders releasable connection.
5. pneumatic actuating device according to claim 4 it is characterised in that: described damping pore structure includes spinning in institute
State the plug screw on drainback passage, plug screw offers damping hole.
6. the pneumatic actuating device according to claim 4 or 5 it is characterised in that: described resistance cylinders include damped cylinder
The body and spinning cylinder cap at damped cylinder body two ends, cylinder cap is provided with oil filler point, and oil filler point is installed with blocking.
7. wiper, including rain brush assembly and pneumatic actuating device, described pneumatic actuating device includes rotary oscillation cylinder, institute
The rain brush assembly stated be arranged on the outfan of the output shaft of rotary oscillation cylinder it is characterised in that: described pneumatic actuation dress
Put and also include hydraulic damping cylinder, described hydraulic damping cylinder includes resistance cylinders, damping gear and the plunger shaft in resistance cylinders
The damping piston inside moving left and right, the tooth bar extending in left-right direction that damping piston passes through to arrange thereon is engaged with damping gear
Transmission；The drainback passage of the left and right oil pocket being located at damping piston two ends for connection is additionally provided with damping piston, on drainback passage
It is provided with damping pore structure；The output shaft of described rotary oscillation cylinder stretches in resistance cylinders, and described damping gear is arranged on
On the installation end of output shaft, the cylinder body of rotary oscillation cylinder is together with resistance cylinders releasable connection.
8. wiper according to claim 7 it is characterised in that: described damping pore structure includes spinning in described oil return
Plug screw on passage, plug screw offers damping hole.
9. the wiper according to claim 7 or 8 it is characterised in that: described resistance cylinders include damped cylinder body and rotation
It is contained in the cylinder cap at damped cylinder body two ends, cylinder cap is provided with oil filler point, oil filler point 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 CN104295559A (en) | 2015-01-21 |
| CN104295559B true 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) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| 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 |
| 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 |
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 |
-
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 |
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| Publication number | Publication date |
|---|---|
| CN104295559A (en) | 2015-01-21 |
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| CP01 | Change in the name or title of a patent holder |
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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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
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. |