CN105673758A - Gas supplementing type gas spring - Google Patents

Gas supplementing type gas spring Download PDF

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Publication number
CN105673758A
CN105673758A CN201610222621.3A CN201610222621A CN105673758A CN 105673758 A CN105673758 A CN 105673758A CN 201610222621 A CN201610222621 A CN 201610222621A CN 105673758 A CN105673758 A CN 105673758A
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CN
China
Prior art keywords
gas
piston
cylinder barrel
gas supplementing
supplementing opening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201610222621.3A
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Chinese (zh)
Other versions
CN105673758B (en
Inventor
余卫忠
曹文亚
岳彩莲
施云宵
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHANGZHOU GAS SPRING Co Ltd
Original Assignee
CHANGZHOU GAS SPRING Co Ltd
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Publication date
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Priority to CN201610222621.3A priority Critical patent/CN105673758B/en
Publication of CN105673758A publication Critical patent/CN105673758A/en
Application granted granted Critical
Publication of CN105673758B publication Critical patent/CN105673758B/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
    • F16F9/0209—Telescopic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
    • F16F9/0209—Telescopic
    • F16F9/0281—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/3207—Constructional features
    • F16F9/3235—Constructional features of cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/36—Special sealings, including sealings or guides for piston-rods
    • F16F9/369—Sealings for elements other than pistons or piston rods, e.g. valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/43—Filling or drainage arrangements, e.g. for supply of gas
    • F16F9/435—Filling or drainage arrangements, e.g. for supply of gas via opening in cylinder wall

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

The invention relates to the technical field of gas springs, in particular to a gas supplementing type gas spring. The gas supplementing type gas spring comprises a cylinder barrel and a piston assembly. The piston assembly comprises a piston and a piston rod. The piston is fixed to one end of the piston rod, one end of the piston rod stretches into the cylinder barrel, the piston is located in the cylinder barrel, and the cylinder barrel is of a double-layer structure and comprises an inner layer and an outer layer. The piston is located in the inner layer, a gas supplementing chamber is formed between the inner layer and the outer layer, a gas inlet is formed in the outer layer, a gas inlet sealing part is installed on the gas inlet, and a gas supplementing opening is formed in the inner layer and communicated with the gas supplementing chamber and a non-rod chamber of the cylinder barrel. The gas supplementing type gas spring further comprises a gas supplementing opening sealing part. According to the gas supplementing type gas spring, the cylinder barrel is designed to be of the double-layer structure, the gas supplementing chamber is additionally formed, when gas in the non-rod chamber slightly leaks, gas can be supplemented in time, the pressure of the gas spring is increased, normal use of the gas spring is guaranteed, and the service life of the gas spring is prolonged accordingly.

Description

Gas compensating type air spring
Technical field
The present invention relates to gas spring technology field, particularly relate to a kind of gas compensating type air spring.
Background technology
Air spring, is a kind of using gas and liquid as the flexible member of working media, is mainly made up of the piston in cylinder barrel, cylinder barrel and piston rod and fairlead etc. In cylinder barrel, storage has gas and part fluid, occupies the volume in cylinder barrel due to piston, and during work in piston rod press-in cylinder barrel, piston makes the fluid in axially-movable extrusion chamber in cylinder barrel, and fluid compresses gas and makes piston reach operating position. After loading the disappearance of external force on the piston rod, then gas restores and expands, and the gas push fluid of expansion makes piston reset, is removed by piston rod, makes air spring realize compression and moves and restore damped motion.
Air spring has significant advantage than common spring: speed is relatively slow, dynamic force changes little (within being typically in 1:1.2), is easily controlled. Shortcoming is that relative volume does not have helical spring little, and cost is high, the life-span is relatively short. Wherein expanding gas is easily revealed after a long time use, affects the life-span of air spring.
Summary of the invention
The technical problem to be solved in the present invention is: the technical problem that the expanding gas in order to solve in prior art in cylinder barrel is easily revealed, a kind of gas compensating type air spring, it is possible to supply gas when air spring micro-leakage.
The technical solution adopted for the present invention to solve the technical problems is: a kind of gas compensating type air spring, including cylinder barrel and piston component, described piston component includes piston and piston rod, piston is fixed on one end of piston rod, one end of piston rod is stretched in cylinder barrel and piston is positioned at inside cylinder barrel, described cylinder barrel is double-decker, including internal layer and outer layer, piston is arranged in internal layer, QI invigorating chamber is formed between internal layer and outer layer, outer layer is provided with air inlet, air inlet is provided with air inlet sealing member, described internal layer is further opened with gas supplementing opening, the rodless cavity of described gas supplementing opening connection QI invigorating chamber and cylinder barrel, described gas compensating type air spring also includes gas supplementing opening sealing member, the cross section of described gas supplementing opening sealing member is I shape, upper ring washer including integrative-structure, columnar supports and lower ring washer, upper ring washer and lower ring washer lay respectively at the two ends of columnar supports, upper ring washer is connected in outer layer, columnar supports is positioned at the outside diameter d 1 of QI invigorating chamber and columnar supports and is slightly less than the internal diameter of gas supplementing opening, the height h of columnar supports is slightly less than the inwall distance d2 to the inwall of internal layer of outer layer, the external diameter of lower ring washer is more than the internal diameter of gas supplementing opening.Gas in the QI invigorating chamber of gas compensating type air spring of the present invention can only flow in rodless cavity, and owing to the external diameter of lower ring washer is more than the internal diameter of gas supplementing opening, lower ring washer can hide gas supplementing opening, and therefore, the gas in rodless cavity cannot be introduced in QI invigorating chamber.
Owing to the columnar supports of gas supplementing opening sealing member needs have certain elasticity, just making have pressure ring washer at present to open gas supplementing opening in QI invigorating chamber, described gas supplementing opening sealing member is elastic sealing element.
In order to improve sealing effectiveness further, it is prevented that the gas in rodless cavity is revealed from gas supplementing opening to QI invigorating chamber, and the outer ring of described lower ring washer is the circular arc of indent.
The invention has the beneficial effects as follows, the gas compensating type air spring of the present invention, by cylinder barrel is designed to double-decker, add QI invigorating chamber, can when the gas in rodless cavity be revealed on a small quantity, timely make-up gas, strengthen the pressure of air spring, ensure the normal use of air spring, thus improve the service life of air spring.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the structural representation under the non-QI invigorating state of gas compensating type air spring of the present invention.
Fig. 2 is the structural representation under gas compensating type air spring QI invigorating state of the present invention.
Fig. 3 is the A place enlarged diagram in Fig. 2.
Fig. 4 is the sectional view of gas supplementing opening sealing member.
In figure: 1, cylinder barrel, 11, internal layer, 12, outer layer, 13, QI invigorating chamber, 14, rodless cavity, 2, piston, 3, piston rod, 4, air inlet sealing member, 5, gas supplementing opening, 6, gas supplementing opening sealing member, 61, upper ring washer, 62, columnar supports, 63, lower ring washer.
Detailed description of the invention
In conjunction with the accompanying drawings, the present invention is further detailed explanation. These accompanying drawings are the schematic diagram of simplification, and the basic structure of the present invention is only described in a schematic way, and therefore it only shows the composition relevant with the present invention.
As Figure 1-4, it it is optimum embodiment of the present invention, a kind of gas compensating type air spring, including cylinder barrel 1 and piston component, piston component includes piston 2 and piston rod 3, piston 2 is fixed on one end of piston rod 3, one end of piston rod 3 is stretched in cylinder barrel 1 and piston 2 is positioned at cylinder barrel 1 inside, cylinder barrel 1 is double-decker, including internal layer 11 and outer layer 12, piston 2 is arranged in internal layer 11, QI invigorating chamber 13 is formed between internal layer 11 and outer layer 12, outer layer 12 is provided with air inlet, air inlet is provided with air inlet sealing member 4, internal layer 11 is further opened with gas supplementing opening 5, gas supplementing opening 5 connects the rodless cavity 14 of QI invigorating chamber 13 and cylinder barrel 1, gas compensating type air spring also includes gas supplementing opening sealing member 6, as shown in Figure 4, the cross section of gas supplementing opening sealing member 6 is I shape, upper ring washer 61 including integrative-structure, columnar supports 62 and lower ring washer 63, upper ring washer 61 and lower ring washer 63 lay respectively at the two ends of columnar supports 62, the clamping of upper ring washer 61 is also fixed in outer layer 12, columnar supports 62 is positioned at the outside diameter d 1 of QI invigorating chamber 13 and columnar supports 62 and is slightly less than the internal diameter of gas supplementing opening 5, in order to make the gas in QI invigorating chamber 13 enter in rodless cavity 14, the height h of columnar supports 62 is slightly less than the inwall distance d2 to the inwall of internal layer 11 of outer layer 12, the external diameter of lower ring washer 63 is more than the internal diameter of gas supplementing opening 5. gas supplementing opening sealing member 6 is elastic sealing element. the outer ring of lower ring washer 63 is the circular arc of indent.
As shown in Figure 1, when the gas in rodless cavity 14 can normal operation time, owing to the height h of columnar supports 62 is slightly less than the inwall distance d2 to the inwall of internal layer 11 of outer layer 12, columnar supports 62 can hold lower ring washer 63, keeps the sealing between rodless cavity 14 and QI invigorating chamber 13.As shown in Figure 2, when the gas trace in rodless cavity 14 is revealed, can pass through to inflate to air inlet, gas in QI invigorating chamber 13 enters in the gap between columnar supports 62 and gas supplementing opening 5, the lower ring washer 63 of compressing is away from the inwall of internal layer 11, gas is made to enter in rodless cavity 14, it is ensured that the gas in rodless cavity 14 is sufficient, meets the working condition of air spring.
With the above-mentioned desirable embodiment according to the present invention for enlightenment, by above-mentioned description, relevant staff in the scope not necessarily departing from this invention technological thought, can carry out various change and amendment completely. The technical scope of this invention is not limited to the content in description, it is necessary to determine its technical scope according to right.

Claims (3)

1. a gas compensating type air spring, including cylinder barrel (1) and piston component, described piston component includes piston (2) and piston rod (3), piston (2) is fixed on one end of piston rod (3), one end of piston rod (3) is stretched in cylinder barrel (1) and piston (2) is positioned at cylinder barrel (1) inside, it is characterized in that: described cylinder barrel (1) is double-decker, including internal layer (11) and outer layer (12), piston (2) is arranged in internal layer (11), QI invigorating chamber (13) is formed between internal layer (11) and outer layer (12), outer layer is provided with air inlet on (12), air inlet is provided with air inlet sealing member (4), described internal layer (11) is further opened with gas supplementing opening (5), the rodless cavity (14) of described gas supplementing opening (5) connection QI invigorating chamber (13) and cylinder barrel (1), described gas compensating type air spring also includes gas supplementing opening sealing member (6), the cross section of described gas supplementing opening sealing member (6) is I shape, upper ring washer (61) including integrative-structure, columnar supports (62) and lower ring washer (63), upper ring washer (61) and lower ring washer (63) lay respectively at the two ends of columnar supports (62), upper ring washer (61) is connected in outer layer (12), columnar supports (62) is positioned at the outside diameter d 1 of QI invigorating chamber (13) and columnar supports (62) and is slightly less than the internal diameter of gas supplementing opening (5), the height h of columnar supports (62) is slightly less than the inwall distance d2 to the inwall of internal layer (11) of outer layer (12), the external diameter of lower ring washer (63) is more than the internal diameter of gas supplementing opening (5).
2. gas compensating type air spring as claimed in claim 1, it is characterised in that: described gas supplementing opening sealing member (6) is elastic sealing element.
3. gas compensating type air spring as claimed in claim 1, it is characterised in that: the outer ring of described lower ring washer (63) is the circular arc of indent.
CN201610222621.3A 2016-04-11 2016-04-11 Gas compensating type gas spring Active CN105673758B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610222621.3A CN105673758B (en) 2016-04-11 2016-04-11 Gas compensating type gas spring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610222621.3A CN105673758B (en) 2016-04-11 2016-04-11 Gas compensating type gas spring

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CN105673758A true CN105673758A (en) 2016-06-15
CN105673758B CN105673758B (en) 2017-07-28

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106810309A (en) * 2016-12-28 2017-06-09 重庆市益丰生物肥有限公司 Bio-fertilizer fermentation tonifying Qi transfusion agitating device
CN110173183A (en) * 2019-03-04 2019-08-27 江苏大学 A kind of air damper and the arrangements for automotive doors using the damper
WO2021052638A1 (en) * 2019-09-17 2021-03-25 Audi Ag Gas piston accumulator and method for filling gas into a gas piston accumulator
CN112610636A (en) * 2021-01-07 2021-04-06 贵州龙飞气弹簧有限责任公司 Tension gas spring

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87202938U (en) * 1987-03-06 1987-11-25 高金山 Jet-type automatic air-supplying installation
DE69406746T2 (en) * 1993-09-17 1998-05-20 Diebolt Int Inc Gas spring with filling valve
CA2287434A1 (en) * 1998-10-27 2000-04-27 Diebolt International, Inc. Gas spring filler valve
CN102777530A (en) * 2012-07-31 2012-11-14 常州气弹簧有限公司 Stepless speed-governing gas spring
CN103644235A (en) * 2013-12-31 2014-03-19 吉林大学 Semi-active parallel air spring
CN203742948U (en) * 2014-02-28 2014-07-30 杭州振兴工业泵制造有限公司 Vacuum regulating device of vacuum pump inlet
CN205533955U (en) * 2016-04-11 2016-08-31 常州气弹簧有限公司 Tonifying qi formula air spring

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87202938U (en) * 1987-03-06 1987-11-25 高金山 Jet-type automatic air-supplying installation
DE69406746T2 (en) * 1993-09-17 1998-05-20 Diebolt Int Inc Gas spring with filling valve
CA2287434A1 (en) * 1998-10-27 2000-04-27 Diebolt International, Inc. Gas spring filler valve
CN102777530A (en) * 2012-07-31 2012-11-14 常州气弹簧有限公司 Stepless speed-governing gas spring
CN103644235A (en) * 2013-12-31 2014-03-19 吉林大学 Semi-active parallel air spring
CN203742948U (en) * 2014-02-28 2014-07-30 杭州振兴工业泵制造有限公司 Vacuum regulating device of vacuum pump inlet
CN205533955U (en) * 2016-04-11 2016-08-31 常州气弹簧有限公司 Tonifying qi formula air spring

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106810309A (en) * 2016-12-28 2017-06-09 重庆市益丰生物肥有限公司 Bio-fertilizer fermentation tonifying Qi transfusion agitating device
CN106810309B (en) * 2016-12-28 2020-04-28 重庆市益丰生物肥有限公司 Bio-fertilizer fermentation tonifying qi infusion agitating unit
CN110173183A (en) * 2019-03-04 2019-08-27 江苏大学 A kind of air damper and the arrangements for automotive doors using the damper
CN110173183B (en) * 2019-03-04 2021-01-15 江苏大学 Air damper and automobile door applying same
WO2021052638A1 (en) * 2019-09-17 2021-03-25 Audi Ag Gas piston accumulator and method for filling gas into a gas piston accumulator
CN112610636A (en) * 2021-01-07 2021-04-06 贵州龙飞气弹簧有限责任公司 Tension gas spring

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Publication number Publication date
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