CN105697635A - Speed-adjustable high-precision air spring - Google Patents

Speed-adjustable high-precision air spring Download PDF

Info

Publication number
CN105697635A
CN105697635A CN201610222056.0A CN201610222056A CN105697635A CN 105697635 A CN105697635 A CN 105697635A CN 201610222056 A CN201610222056 A CN 201610222056A CN 105697635 A CN105697635 A CN 105697635A
Authority
CN
China
Prior art keywords
plug
cavity
cylinder barrel
hole
air spring
Prior art date
Application number
CN201610222056.0A
Other languages
Chinese (zh)
Inventor
余卫忠
岳彩莲
施云宵
Original Assignee
常州气弹簧有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 常州气弹簧有限公司 filed Critical 常州气弹簧有限公司
Priority to CN201610222056.0A priority Critical patent/CN105697635A/en
Publication of CN105697635A publication Critical patent/CN105697635A/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32Details
    • F16F9/34Special valve constructions; Shape or construction of throttling passages
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32Details
    • F16F9/44Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2222/00Special physical effects, e.g. nature of damping effects
    • F16F2222/12Fluid damping
    • F16F2222/126Fluid damping using gases

Abstract

The invention relates to the technical field of air springs, in particular to a speed-adjustable high-precision air spring. The speed-adjustable high-precision air spring comprises a cylinder barrel, and a plug sleeved at one end of the cylinder barrel; the plug is provided with an inner cylinder barrel in the cylinder barrel in a sealing manner; an outer cavity is formed between the cylinder barrel and the inner cylinder barrel; an empty cavity is formed in the plug; a valve element matched with the empty cavity is slidingly arranged in the empty cavity; the end part of one end, far from the cylinder barrel, of the plug is in threaded connection with a screw rod; one end of the screw rod is rotationally connected with the valve element, and the other end of the screw rod penetrates out of the plug; multiple first through holes are formed in the contacted surface of the empty cavity with the valve element; the first through holes are communicated with the outer cavity; a second through hole is formed in the other end of the plug, and is communicated with the empty cavity; multiple baffle plates are staggered in the outer cavity; and the baffle plates gradually shrink from outside to inside. The speed-adjustable high-precision air spring is high in control precision, simple in operation and excellent in tightness.

Description

High-precision adjustable-speed air spring

Technical field

The present invention relates to gas spring technology field, especially relate to a kind of high-precision adjustable-speed air spring。

Background technology

Air spring is mainly made up of the piston in cylinder barrel, cylinder barrel, piston rod and valve rod etc., and in cylinder barrel, storage has gas or storage to have gas mixture。The volume in cylinder barrel has been occupied, so utilizing the cross-sectional area of the piston rod cross-sectional area less than piston thus the pressure differential produced is to realize the motion of piston rod due to piston。Its adjusting speed accuracy of the air spring of existing adjustable speed is not high, makes air spring neglect fast neglecting slowly at work, regulates comparatively laborious, waste time and energy, and affect its work efficiency。

Summary of the invention

The technical problem to be solved in the present invention is: the problem not high in order to solve air spring adjusting speed accuracy, now provides a kind of high-precision adjustable-speed air spring。

The technical solution adopted for the present invention to solve the technical problems is: a kind of high-precision adjustable-speed air spring, including cylinder barrel and the plug being set in cylinder barrel one end, described plug is positioned at the sealing of described cylinder barrel and is provided with inner cylinder tube, outer chamber is formed between described cylinder barrel and inner cylinder tube, it is provided with cavity body in described plug, slide in described cavity body and be provided with the spool matched with it, described plug is connected to screw rod away from one end end thread of cylinder barrel, one end of described screw rod is connected with described valve core rotation, the other end of described screw rod passes described plug, described cavity body and the contact surface of described spool offer some first through holes, described first through hole connects with described outer chamber, the other end of described plug offers the second through hole, described second through hole connects with described cavity body, some baffle plates it are staggeredly equipped with in described outer chamber, described baffle plate ecto-entad gradually tapers up, spool is made to slide in cavity body by adjusting screw rod, control the keying of the first through hole, improve the control accuracy of air spring speed, gas or fluid are played buffering by baffle plate, make cylinder interior part reduce to impact。

When air spring is compressed and recovers to damp, in order to make the first through hole both sides gas be able to rapidly input and output, further, described first through hole sectional area shows as and is incremented by two ends by centre, it is incremented by two ends by centre owing to the first through hole sectional area shows as, make the first through hole two ends gas will not crowded together, allow gas to enough more quick, smoothly pass over the first through hole。

Spool is in closed state, in order to make to have between the first through hole and the second through hole good sealing, further, described spool is positioned at the end face of one end of described second through hole and is provided with sealing ring with described cavity body contact surface, it is provided with sealing ring with cavity body contact surface owing to spool is positioned at the end face of one end of the second through hole, spool is in closed state, it is ensured that the first through hole and the good sealing of the second through hole。

The invention has the beneficial effects as follows: high-precision adjustable-speed air spring of the present invention operationally, by adjusting screw rod, makes spool slide in cavity body, control the keying of the first through hole, improve the control accuracy of air spring speed, gas or fluid are played buffering by baffle plate, make cylinder interior part reduce and impact;Be incremented by two ends by centre owing to the first through hole sectional area shows as, make the first through hole two ends gas will not crowded together, allow gas to enough more quick, smoothly pass over the first through hole;Being provided with sealing ring owing to spool is positioned at the end face of one end of the second through hole with cavity body contact surface, spool is in closed state, it is ensured that the first through hole and the good sealing of the second through hole;Control accuracy of the present invention is high, simple to operate, good airproof performance。

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the present invention is further described。

Fig. 1 is the front view of high-precision adjustable-speed air spring of the present invention;

Fig. 2 is the partial enlarged drawing of A in Fig. 1。

In figure: 1, cylinder barrel, 2, plug, 3, inner cylinder tube, 4, outer chamber, 5, cavity body, 6, spool, 7, screw rod, the 8, first through hole, the 9, second through hole, 10, sealing ring, 11, baffle plate。

Detailed description of the invention

Presently in connection with accompanying drawing, the present invention will be further described in detail。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。

Embodiment 1

As illustrated in fig. 1 and 2, a kind of high-precision adjustable-speed air spring, including cylinder barrel 1 and the plug 2 being set in cylinder barrel 1 one end, described plug 2 is positioned at the sealing of described cylinder barrel 1 and is provided with inner cylinder tube 3, outer chamber 4 is formed between described cylinder barrel 1 and inner cylinder tube 3, it is provided with cavity body 5 in described plug 2, slide in described cavity body 5 and be provided with the spool 6 matched with it, described plug 2 is connected to screw rod 7 away from one end end thread of cylinder barrel 1, one end of described screw rod 7 and described spool 6 are rotationally connected, the other end of described screw rod 7 passes described plug 2, described cavity body 5 and the contact surface of described spool 6 offer some first through holes 8, first through hole 8 connects with cavity body 5, described first through hole 8 connects with described outer chamber 4, the other end of described plug 2 offers the second through hole 9, described second through hole 9 connects with described cavity body 5, some baffle plates 11 it are staggeredly equipped with in described outer chamber 4, described baffle plate 11 ecto-entad gradually tapers up。

Described spool 6 is positioned at the end face of one end of described second through hole 9 and is provided with sealing ring 10 with described cavity body 5 contact surface。

Above-mentioned high-precision adjustable-speed air spring is operationally, first spool 6 is made to be in closure state, then adjusting screw rod 7, controlling spool 6 mobile in cavity body 5, gas or fluid arrive cavity body 5 by the second through hole 9, then are entered in the first through hole 8 by cavity body 5, entering in outer chamber 4 from the first through hole 8, gas and fluid admission velocity under the cushioning effect of baffle plate 11 reduces, it is ensured that spool 6 is just being opened or when once opening is big for spool 6, reduces the impact to cylinder interior part;When opening the first through hole 8 quantity and also increasing gradually, screw rod 7 stretches out more long, its air spring movement velocity is more fast, in order to be more accurately controlled the movement velocity of air spring, being equivalent to the valve installed on air spring, can judge the movement velocity of air spring according to screw rod 7 extension elongation, adjusting screw rod 7 just can regulate air spring movement velocity accurately, gas or fluid are played buffering by baffle plate 11, make cylinder interior part reduce and impact。

The above-mentioned desirable embodiment according to the present invention is enlightenment, and 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 high-precision adjustable-speed air spring, including cylinder barrel (1) and the plug (2) being set in cylinder barrel (1) one end, described plug (2) is positioned at described cylinder barrel (1) sealing and is provided with inner cylinder tube (3), outer chamber (4) is formed between described cylinder barrel (1) and inner cylinder tube (3), it is characterized in that: in described plug (2), be provided with cavity body (5), slide in described cavity body (5) and be provided with the spool (6) matched with it, described plug (2) is connected to screw rod (7) away from one end end thread of cylinder barrel (1), one end of described screw rod (7) and described spool (6) are rotationally connected, the other end of described screw rod (7) passes described plug (2), described cavity body (5) and the contact surface of described spool (6) offer some first through holes (8), described first through hole (8) connects with described outer chamber (4), the other end of described plug (2) offers the second through hole (9), described second through hole (9) connects with described cavity body (5), some baffle plates (11) it are staggeredly equipped with in described outer chamber (4), described baffle plate (11) ecto-entad gradually tapers up。
2. high-precision adjustable-speed air spring according to claim 1, it is characterised in that: described first through hole (8) sectional area shows as and is incremented by two ends by centre。
3. high-precision adjustable-speed air spring according to claim 1, it is characterised in that: described spool (6) is positioned at the end face of one end of described second through hole (9) and is provided with sealing ring (10) with described cavity body (5) contact surface。
CN201610222056.0A 2016-04-11 2016-04-11 Speed-adjustable high-precision air spring CN105697635A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610222056.0A CN105697635A (en) 2016-04-11 2016-04-11 Speed-adjustable high-precision air spring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610222056.0A CN105697635A (en) 2016-04-11 2016-04-11 Speed-adjustable high-precision air spring

Publications (1)

Publication Number Publication Date
CN105697635A true CN105697635A (en) 2016-06-22

Family

ID=56218657

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610222056.0A CN105697635A (en) 2016-04-11 2016-04-11 Speed-adjustable high-precision air spring

Country Status (1)

Country Link
CN (1) CN105697635A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4131266A (en) * 1977-10-19 1978-12-26 Jackson Machine Products Adjustable shock absorber
US4779851A (en) * 1986-01-28 1988-10-25 Fritz Bauer & Sohne Ohg Adjustable-length gas spring with permanent release mechanism
DE10329468B3 (en) * 2003-07-01 2004-11-18 Stabilus Gmbh Gas spring for chair support column has sliding piston dividing pressure cylinder into 2 working chambers one of which is divided into 2 pressure chambers by sliding separation piston
DE202005021063U1 (en) * 2005-11-18 2007-01-25 Baisch, Petra Ilse Oil damper used in pieces of furniture comprises an outer tube surrounding an inner tube, connecting parts connected to both tubes, a piston, a stepped hole, a throttle part and a further channel
CN201547166U (en) * 2009-09-10 2010-08-11 浙江吉利控股集团有限公司 Electrorheological fluid vibration damper
CN202531717U (en) * 2012-03-28 2012-11-14 南京理工大学 Damping hole fine-adjustable hydraulic buffer
CN205533974U (en) * 2016-04-11 2016-08-31 常州气弹簧有限公司 Fast air spring of high precision -adjustable

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4131266A (en) * 1977-10-19 1978-12-26 Jackson Machine Products Adjustable shock absorber
US4779851A (en) * 1986-01-28 1988-10-25 Fritz Bauer & Sohne Ohg Adjustable-length gas spring with permanent release mechanism
DE10329468B3 (en) * 2003-07-01 2004-11-18 Stabilus Gmbh Gas spring for chair support column has sliding piston dividing pressure cylinder into 2 working chambers one of which is divided into 2 pressure chambers by sliding separation piston
DE202005021063U1 (en) * 2005-11-18 2007-01-25 Baisch, Petra Ilse Oil damper used in pieces of furniture comprises an outer tube surrounding an inner tube, connecting parts connected to both tubes, a piston, a stepped hole, a throttle part and a further channel
CN201547166U (en) * 2009-09-10 2010-08-11 浙江吉利控股集团有限公司 Electrorheological fluid vibration damper
CN202531717U (en) * 2012-03-28 2012-11-14 南京理工大学 Damping hole fine-adjustable hydraulic buffer
CN205533974U (en) * 2016-04-11 2016-08-31 常州气弹簧有限公司 Fast air spring of high precision -adjustable

Similar Documents

Publication Publication Date Title
US6957807B2 (en) Damping device
CN103362889B (en) The buffering pneumatic cylinder of adjustment-free
MXPA06008490A (en) Mechanically sealed adjustable gas nozzle.
CN201255257Y (en) Power constant control valve
CN1322240C (en) Single rod and rough symmetric double actuating surfaces hydraulic cylinder with internal displacement sensor
WO2015017849A4 (en) A flow control system and control valve having closure assistance
WO2009010643A3 (en) Shock absorber for aircraft landing gear
CN102588385B (en) Throttling and buffering integrated structure of cylinder
CN104564908A (en) Buffer hydraulic cylinder
CN103256275B (en) A kind of double acting Hydraulic Cylinder
CN204253497U (en) A kind of multi-stage cylinder of sequentially-operating
CN108027006B (en) Buffer device
TW201221769A (en) Venturi tube component and manual/pneumatic pump with venturi tube thereof
CN102310391A (en) Tool equipment
CN105587199B (en) A kind of air pressure door closer
CN101598231B (en) Pneumatic actuator
KR102151463B1 (en) Fluid control valve
US10352337B2 (en) Fluid pressure cylinder
CN201121677Y (en) Pressure-adjustable gas spring
CN206972960U (en) A kind of double spool flow throttling ball valves
CN103122880A (en) Adjustable pilot reducing valve
CN206792987U (en) A kind of tennis serve machine
CN103982488B (en) Adjustable buffering device of large cylinder body
CN103115038A (en) Novel buffering oil cylinder for hydraulic pump station
CN205745576U (en) Valve and movement transforming device

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20160622