CN203176051U - High-speed hydraulic cylinder with buffering function - Google Patents

High-speed hydraulic cylinder with buffering function Download PDF

Info

Publication number
CN203176051U
CN203176051U CN 201320066100 CN201320066100U CN203176051U CN 203176051 U CN203176051 U CN 203176051U CN 201320066100 CN201320066100 CN 201320066100 CN 201320066100 U CN201320066100 U CN 201320066100U CN 203176051 U CN203176051 U CN 203176051U
Authority
CN
China
Prior art keywords
cover
cylinder
oil
hydraulic cylinder
outlet
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.)
Expired - Fee Related
Application number
CN 201320066100
Other languages
Chinese (zh)
Inventor
何贵新
乔新艳
刘艳丽
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.)
JIAOZUO CITY LIQUID-PRESSURE MACHINERY MANUFACTURING Co Ltd
Original Assignee
JIAOZUO CITY LIQUID-PRESSURE MACHINERY MANUFACTURING Co Ltd
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 JIAOZUO CITY LIQUID-PRESSURE MACHINERY MANUFACTURING Co Ltd filed Critical JIAOZUO CITY LIQUID-PRESSURE MACHINERY MANUFACTURING Co Ltd
Priority to CN 201320066100 priority Critical patent/CN203176051U/en
Application granted granted Critical
Publication of CN203176051U publication Critical patent/CN203176051U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a high-speed hydraulic cylinder with a buffering function. The high-speed hydraulic cylinder with the buffering function comprises a cylinder body, a piston, a piston rod, a locking nut, a front end cover and a rear end cover, wherein the locking nut is fixedly connected with the piston rod, the upper portion of the front end cover and the upper portion of the rear end cover are respectively provided with a main oil inlet outlet, each main oil outlet inlet is communicated with the inner cavity of the cylinder body, the lower portion of the front end cover and the lower portion of the rear end cover are respectively provided with an auxiliary oil inlet opening, the position, close to the front end cover, of the lower portion of the cylinder body is provided with an auxiliary oil outlet, the position, close to the rear end cover, of the lower portion of the cylinder body is provided with an auxiliary oil outlet, each auxiliary oil inlet is communicated with one auxiliary oil outlet through an oil pipe, and a one-way valve is arranged on each oil pipe. The high-speed hydraulic cylinder with the buffering function can generate resistance to motion in the second half stroke of operation and retraction and absorbs inertia force of the piston rod, so that impact of the piston rod of the hydraulic cylinder on the front end cover and the rear end cover is reduced, and the service life of the hydraulic cylinder is prolonged.

Description

A kind of high speed hydraulic cylinder with pooling feature
Technical field
The utility model relates to a kind of pooling feature high speed hydraulic cylinder that has, and belongs to the oil hydraulic cylinder mechanical equipment technical field.
Background technique
Increase along with China's rapid economy development and construction project, the market demand and the kind of modern project machinery grow with each passing day, particularly the demand of the engineering equipments such as pump truck of slurry conveyed is also growing with each passing day, driving oil hydraulic cylinder on the pump truck is the major impetus source of slurry conveyed, in order to improve feed flow, the speed that drives oil hydraulic cylinder must improve, and the speed height can cause oil cylinder at end of travel bigger impact force to be arranged, and then destruction front and rear cover, therefore, the impact force of slowing down oil hydraulic cylinder becomes the problem of relatively paying close attention in the industry now.In metallurgy industry, at present, the oil cylinder of domestic production also is difficult to the technical requirements that reaches supporting with the pump truck main frame, and the life-span is generally on the low side.
The model utility content
At above-mentioned defective, the utility model provides a kind of high speed hydraulic cylinder with pooling feature, reduces the impact of hydraulic cylinder piston pole pair front and rear cover, and then prolongs the oil hydraulic cylinder life-span.
To achieve these goals, the technical solution of the utility model is: a kind of high speed hydraulic cylinder with pooling feature, comprise cylinder body, piston, piston rod, the locking nut of fixedlying connected with piston rod, front cover and rear end cover, the top of described front cover and rear end cover arranges main oil inlet and outlet, communicate with the inner chamber of cylinder body, the bottom of described front cover and rear end cover arranges secondary filler opening, the bottom of described cylinder body is arranging secondary oil outlet near front cover, rear end cover place, described secondary oil outlet has oil pipe to be communicated with secondary filler opening, and one-way valve is set on the oil pipe.
Further, the aperture of described secondary filler opening is less than the aperture of main oil inlet and outlet.
Further, described secondary oil outlet is made up of a plurality of little oil outlets.
As the improvement to model utility, the fixedly connected buffering cylinder body of described rear end cover, in damper piston is set, offset with locking nut.
High speed hydraulic cylinder with pooling feature of the present utility model, its cylinder body arranges secondary oil outlet in the place near front cover and rear end cover, cylinder body is divided into preceding buffer part, back buffer part, middle working part, front cover, on the rear end cover and secondary filler opening is set, secondary oil outlet has oil pipe to be communicated with secondary filler opening, one-way valve is set on the oil pipe, make the oil of this oil pipe of flowing through to flow to secondary oil outlet from secondary filler opening, during hydraulic cylinder works, piston rod outwards moves, piston is in the back buffer part, middle working part operation, this moment, the secondary filler opening at rear portion was identical with secondary oil outlet oil pressure, and one-way valve can not opened, and before piston enters during buffer part, high pressure oil from the secondary oil outlet of front portion through one-way valve, anterior secondary filler opening flow into ante-chamber, and at this moment oil is scurried in the chamber, front and back of oil cylinder, and oil pressure is identical, the hydraulic oil of ante-chamber produces resistance to motion to piston, it is zero that piston slows down up to speed, avoids hitting at the high speed lower piston phenomenon of front cover, thus the buffering of realization; Otherwise, during the oil hydraulic cylinder retraction, piston rod inwardly moves, piston is in preceding buffer part, the operation of middle working part, this moment, the secondary filler opening of front portion was identical with secondary oil outlet oil pressure, one-way valve can not opened, and when piston enters the back buffer part, high pressure oil flow into back cavity from the secondary filler opening of secondary oil outlet through one-way valve, rear portion at rear portion, and at this moment oil is scurried in the chamber, front and back of oil cylinder, and oil pressure is identical, the hydraulic oil of back cavity produces resistance to motion to piston, it is zero that piston slows down up to speed, avoids hitting at the high speed lower piston phenomenon of front and rear covers, thus the buffering of realization.
For the pump truck applying working condition, this kind oil hydraulic cylinder in use, speed during retraction is faster than the speed of work, be that piston is after retraction enters back buffer part buffering, may also have a certain amount of inertial force, add a damper piston in the back of rear end cover this moment again, this damper piston has a certain amount of pressure oil in working order the time and is pushing away damper piston always, make it head on the locking nut of oil hydraulic cylinder, this locking nut is connected on the piston rod, locking nut can head on damper piston toward rollback, pressure becomes big to one chamber hydraulic oil of damper piston back along with smaller volume, to produce the anti-active force that pushes away also just increasing for damper piston like this, and at this moment the inertial force of the piston rod reaction thrust that just is cushioned piston has been offset, thereby realized absorbing the effect of inertial force.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
The utility model is further described below in conjunction with accompanying drawing and specific embodiment.
As shown in Figure 1, high speed hydraulic cylinder with pooling feature of the present utility model, comprise cylinder body 1, piston 3, piston rod 2, the locking nut 11 of fixedlying connected with piston rod 2, front cover 4 and rear end cover 5, the top of described front cover 4 and rear end cover 5 arranges main oil inlet and outlet 6, communicate with the inner chamber of cylinder body 1, the bottom of described front cover 4 and rear end cover 5 arranges secondary filler opening 7, the bottom of described cylinder body 1 is arranging secondary oil outlet 8 near front cover 4, rear end cover 5 places, described secondary oil outlet 8 has oil pipe 10 to be communicated with secondary filler opening 7, and one-way valve 9 is set on the oil pipe 10.
The aperture of described secondary filler opening 7 is less than the aperture of main oil inlet and outlet 6.
Described secondary oil outlet 8 is made up of a plurality of little oil outlets.
As the improvement to model utility, described rear end cover 5 fixedly connected buffering cylinder bodies 12, porose in the rear end cover 5, cylinder body 1 is connected with buffering cylinder body 12, in the buffering cylinder body 12 damper piston 13 is set, offset with locking nut 11.
The technical solution of the utility model is not limited to the restriction of above-mentioned specific embodiment, and every technology distortion of making according to the technical solution of the utility model all falls within the protection domain of the present utility model.

Claims (4)

1. high speed hydraulic cylinder with pooling feature, comprise cylinder body, piston, piston rod, the locking nut of fixedlying connected with piston rod, front cover and rear end cover, it is characterized in that: the top of described front cover and rear end cover arranges main oil inlet and outlet, communicate with the inner chamber of cylinder body, the bottom of described front cover and rear end cover arranges secondary filler opening, the bottom of described cylinder body is arranging secondary oil outlet near front cover, rear end cover place, described secondary oil outlet has oil pipe to be communicated with secondary filler opening, and one-way valve is set on the oil pipe.
2. the high speed hydraulic cylinder with pooling feature according to claim 1, it is characterized in that: the aperture of described secondary filler opening is less than the aperture of main oil inlet and outlet.
3. the high speed hydraulic cylinder with pooling feature according to claim 1, it is characterized in that: described secondary oil outlet is made up of a plurality of little oil outlets.
4. the high speed hydraulic cylinder with pooling feature according to claim 1 is characterized in that: the fixedly connected buffering cylinder body of described rear end cover, in damper piston is set, offset with locking nut.
CN 201320066100 2013-02-05 2013-02-05 High-speed hydraulic cylinder with buffering function Expired - Fee Related CN203176051U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320066100 CN203176051U (en) 2013-02-05 2013-02-05 High-speed hydraulic cylinder with buffering function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320066100 CN203176051U (en) 2013-02-05 2013-02-05 High-speed hydraulic cylinder with buffering function

Publications (1)

Publication Number Publication Date
CN203176051U true CN203176051U (en) 2013-09-04

Family

ID=49072754

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320066100 Expired - Fee Related CN203176051U (en) 2013-02-05 2013-02-05 High-speed hydraulic cylinder with buffering function

Country Status (1)

Country Link
CN (1) CN203176051U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110735824A (en) * 2019-10-25 2020-01-31 长沙理工大学 Hydraulic cylinder of air port buffer device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110735824A (en) * 2019-10-25 2020-01-31 长沙理工大学 Hydraulic cylinder of air port buffer device

Similar Documents

Publication Publication Date Title
CN202560686U (en) Long-stroke buffering cylinder
CN204664021U (en) A kind of high speed hydraulic cylinder with pooling feature
CN201412411Y (en) Buffer cylinder
CN203081892U (en) Air cylinder
CN203176051U (en) High-speed hydraulic cylinder with buffering function
CN206085764U (en) Cast and forge lathe with shock -absorbing function
CN203453173U (en) Beading pushing oil cylinder of steel rail flash welding machine
CN202690578U (en) Rapid oil cylinder
CN205446539U (en) A shock attenuation resistance to compression flywheel for automobile engine
CN204226336U (en) A kind of mechanical press high speed oil pressure cylinder
CN201391511Y (en) Hydraulic cylinder cushioning device
CN203453175U (en) Fast oil cylinder for small-table-board large-tonnage hydraulic press
CN205578404U (en) Hydraulic cylinder with high shock -absorbing capacity
CN206175383U (en) Bull -dozer operating cylinder with buffer function
CN202579453U (en) Buffer device for hydraulic oil cylinder
CN202597324U (en) Telescopic piston cylinder
CN205533485U (en) Hydraulic system of dustbin hopper stroke end section buffering
CN203948382U (en) A kind of slow pass is along opening type servomotor
CN201851421U (en) Fast injection oil cylinder
CN202418088U (en) Oil cylinder used for tension straightening machine
CN203655784U (en) Hydraulic cylinder with buffering mechanism
CN203239683U (en) Cylinder in plunger-type hydraulic cylinder
CN203560194U (en) Retreating type rapid oil discharging circuit of oil cylinder of hydraulic machine
CN203297170U (en) Energy-saving and consumption-reducing compression-type garbage station
CN202158036U (en) Buffering structure for hydraulic cylinder

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130904

Termination date: 20160205

CF01 Termination of patent right due to non-payment of annual fee