CN201714733U - Servo hydraulic oil cylinder - Google Patents

Servo hydraulic oil cylinder Download PDF

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Publication number
CN201714733U
CN201714733U CN2010202372966U CN201020237296U CN201714733U CN 201714733 U CN201714733 U CN 201714733U CN 2010202372966 U CN2010202372966 U CN 2010202372966U CN 201020237296 U CN201020237296 U CN 201020237296U CN 201714733 U CN201714733 U CN 201714733U
Authority
CN
China
Prior art keywords
cylinder
piston
sensor
piston rod
oil cylinder
Prior art date
Application number
CN2010202372966U
Other languages
Chinese (zh)
Inventor
胡安·卡洛斯
Original Assignee
格力乐液压系统(常州)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 格力乐液压系统(常州)有限公司 filed Critical 格力乐液压系统(常州)有限公司
Priority to CN2010202372966U priority Critical patent/CN201714733U/en
Application granted granted Critical
Publication of CN201714733U publication Critical patent/CN201714733U/en

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Abstract

The utility model discloses a servo hydraulic oil cylinder, which is provided with a cylinder body, a front cylinder cover and a rear cylinder cover, wherein a piston is arranged in the cylinder body, the piston and the inner wall of the cylinder body are sealed, the piston is connected with a piston rod, one end of the piston rod extends outside the cylinder body, the outer end surface of the rear cylinder cover is fixed with a sensor which is used to measure the displacement amount of the piston, a measure probe of the sensor extends to an inner hole of the piston rod, the sensor is connected with a connector for transporting electrical signals, the connector is connected with a control device through pipelines, a position of the piston rod extending out the cylinder body is provided with an anti-dust sealing ring which seals and contacts the outer circle surface of the piston rod, the front end surface of the piston is provided with a buffer sleeve which is sleeved on the piston rod, and the buffer sleeve is provided with a drain hole which is communicated with a non-rod cavity. The servo hydraulic oil cylinder achieves accurate control and steady operation of motion of the oil cylinder through the mode of arranging the sensor and the buffer sleeve, increases the anti-dust sealing ring, further increases the sealing performance of the oil cylinder, is beneficial for increasing the integrated power performance of the oil cylinder, and prolongs the service life of the oil cylinder.

Description

The servo-hydraulic oil cylinder

Technical field

The utility model relates to the oil cylinder production technical field, especially a kind of servo-hydraulic oil cylinder.

Background technique

Hydraulic jack is widely used in all trades and professions, some application has higher performance requirement to hydraulic jack, typical application such as test stand, flight simulator and wind power generation system etc., usually all require oil cylinder to have higher power performance, lower friction factor, accurate movement control and motion state stably, and present oil cylinder generally is difficult to satisfy fully above-described requirement, therefore in the higher use occasion of above-mentioned requirements, existing cylinder structure often is difficult to satisfy usage requirement, also can not get the working life of oil cylinder guaranteeing.

The model utility content

The technical problems to be solved in the utility model is: overcome the deficiency in the prior art, a kind of servo-hydraulic oil cylinder that has high power performance and robust motion, can realize accurate motion control is provided.

The technological scheme that its technical problem that solves the utility model adopts is: a kind of servo-hydraulic oil cylinder, has cylinder body, the cylinder body two ends are fixed with front end housing and back cylinder cover respectively, be provided with piston in the cylinder body, piston and inboard wall of cylinder block liquid sealing, be connected with piston rod on the piston, piston rod one end stretches out outside the cylinder body, on the back cylinder cover exterior edge face, be fixed with the sensor that is used to measure amount of piston displacement, the measuring probe of sensor puts in the endoporus of piston rod, be connected with the connector of transmission of electric signals on the sensor, connector line connection control device, piston rod stretches out the cylinder body place and is provided with the dust-proof seal ring that contacts with the sealing of piston rod periphery, and the front-end face place of piston is provided with the cushion collar that is sleeved on the piston rod, and cushion collar has the draining hole that is communicated with rodless cavity.

For preventing that hydraulic-oil quantity from too much causing oil pressure too high, guarantee the smooth running of oil cylinder, be provided with in the described draining hole that may command draining hole is opened or closed steel ball.

Further, described sensor is a Magnetic Induction formula sensor, is provided with the reaction magnetic ring that is used for inductive sensor in the piston.

For preventing that sensor from damaging, be fixed with the sensor protection cover on the exterior edge face of described back cylinder cover, sensor is positioned at the sensor protection cover.

For guaranteeing good seal between dust-proof seal ring and the piston rod, be fixed with pressure ring on the exterior edge face of described front end housing, dust-proof seal ring is between pressure ring and the piston rod and be pressed on by pressure ring on the periphery of piston rod.

The beneficial effects of the utility model are: the utility model is by being provided with the mode of sensor and cushion collar, the accurate control and the smooth running of oil cylinder motion have been realized, on the basis of original oil sealing Sealing, increased dust-proof seal ring again, further improved oil cylinder ground sealability, thereby help improving the power performance of oil cylinder integral body, prolong the working life of oil cylinder.

Description of drawings

Below in conjunction with drawings and embodiments the utility model is further specified.

Fig. 1 is a structural representation of the present utility model.

1. cylinder bodies, 2. front end housings, 3. back cylinder covers, 4. pistons, 5. piston rods, 6. sensors, 7. connectors, 8. dust-proof seal rings, 9. cushion collars, 91. draining holes, 10. steel balls, 11. reaction magnetic rings, 12. sensor protection covers, 13. pressure rings among the figure

Embodiment.

In conjunction with the accompanying drawings the utility model is further described now.These accompanying drawings are the schematic representation of simplification, and basic structure of the present utility model only is described, so it only shows the formation relevant with the utility model.

A kind of servo-hydraulic oil cylinder as shown in Figure 1; has cylinder body 1; cylinder body 1 two ends are fixed with front end housing 2 and back cylinder cover 3 respectively; be provided with piston 4 in the cylinder body 1; piston 4 and cylinder body 1 inwall liquid sealing; be connected with piston rod 5 on the piston 4; piston rod 5 one ends stretch out outside the cylinder body 1; on back cylinder cover 3 exterior edge faces, be fixed with the sensor 6 that is used to measure piston 4 displacement amounts; this sensor 6 is a Magnetic Induction formula sensor; be provided with the reaction magnetic ring 11 that is used for inductive sensor 6 in the piston 4; the measuring probe of sensor 6 puts in the endoporus of piston rod 5, is connected with the connector 7 of transmission of electric signals on the sensor 6, connector 7 line connection control devices; sensor 6 converts oil cylinder piston 4 displacement amounts of being surveyed to electrical signal and transfers to control gear; by the instant action of control gear servocontrol oil cylinder, to realize the accurate control of oil cylinder movement process, simultaneously for preventing that oil cylinder in use is damaged; be fixed with sensor protection cover 12 on the exterior edge face of back cylinder cover 3, sensor 6 is positioned at sensor protection cover 12.

For preventing that effectively trickle dust extraneous in the using process from penetrating into oil cylinder inside, stretch out cylinder body 1 place at piston rod 5 and be provided with the dust-proof seal ring 8 that contacts with the sealing of piston rod 5 peripheries, on the exterior edge face of front end housing 2, be fixed with simultaneously a pressure ring 13, dust-proof seal ring 8 is between pressure ring 13 and piston rod 5 and be pressed on by pressure ring 13 on the periphery of piston rod 5, improved the sealability of oil cylinder integral body thus, help improving the power performance of oil cylinder, prolong the working life of oil cylinder.

The front-end face place that is positioned at piston 4 in cylinder body 1 is provided with the cushion collar 9 that is sleeved on the piston rod 5, cushion collar 9 has the draining hole 91 that is communicated with oil cylinder rodless cavity, be provided with in the draining hole 91 that may command draining hole 91 is opened or closed steel ball 10, when oil mass too much causes oil pressure too high, too high hydraulic oil backs down the steel ball 10 that is pressed on the draining hole 91, hydraulic oil can be discharged by draining hole 91 and is back in the fuel tank by the road, so just prevent the impact force that piston 4 produces in movement process, guaranteed the stationarity of piston 4 motions.

The utility model is by being provided with the mode of sensor 6 and cushion collar 9, realize the accurate control and the smooth running of oil cylinder motion, increased dust-proof seal ring 8 simultaneously, further improved oil cylinder ground sealability, thereby help improving the power performance of oil cylinder integral body, prolong the working life of oil cylinder.

Above-mentioned mode of execution only is explanation technical conceive of the present utility model and characteristics; its purpose is to allow the personage that is familiar with this technology can understand content of the present utility model and is implemented; can not limit protection domain of the present utility model with this; all equivalences of being done according to the utility model spirit change or modify, and all should be encompassed in the protection domain of the present utility model.

Claims (5)

1. servo-hydraulic oil cylinder, has cylinder body (1), cylinder body (1) two ends are fixed with front end housing (2) and back cylinder cover (3) respectively, be provided with piston (4) in the cylinder body (1), piston (4) and cylinder body (1) inwall liquid sealing, be connected with piston rod (5) on the piston (4), piston rod (5) one ends stretch out outside the cylinder body (1), it is characterized in that: be fixed with the sensor (6) that is used to measure piston (4) displacement amount on back cylinder cover (3) exterior edge face, the measuring probe of sensor (6) puts in the endoporus of piston rod (5), be connected with the connector (7) of transmission of electric signals on the sensor (6), connector (7) line connection control device, piston rod (5) stretches out cylinder body (1) and locates to be provided with the dust-proof seal ring (8) that contacts with the sealing of piston rod (5) periphery, the front-end face place of piston (4) is provided with the cushion collar (9) that is sleeved on the piston rod (5), and cushion collar (9) has the draining hole (91) that is communicated with rodless cavity.
2. servo-hydraulic oil cylinder according to claim 1 is characterized in that: be provided with in the described draining hole (91) that may command draining hole (91) is opened or closed steel ball (10).
3. servo-hydraulic oil cylinder according to claim 1 is characterized in that: described sensor (6) is a Magnetic Induction formula sensor, is provided with the reaction magnetic ring (11) that is used for inductive sensor (6) in the piston (4).
4. servo-hydraulic oil cylinder according to claim 1 is characterized in that: be fixed with sensor protection cover (12) on the exterior edge face of described back cylinder cover (3), sensor (6) is positioned at sensor protection cover (12).
5. servo-hydraulic oil cylinder according to claim 1, it is characterized in that: be fixed with pressure ring (13) on the exterior edge face of described front end housing (2), dust-proof seal ring (8) is positioned between pressure ring (13) and the piston rod (5) and by pressure ring (13) and is pressed on the periphery of piston rod (5).
CN2010202372966U 2010-06-25 2010-06-25 Servo hydraulic oil cylinder CN201714733U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010202372966U CN201714733U (en) 2010-06-25 2010-06-25 Servo hydraulic oil cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010202372966U CN201714733U (en) 2010-06-25 2010-06-25 Servo hydraulic oil cylinder

Publications (1)

Publication Number Publication Date
CN201714733U true CN201714733U (en) 2011-01-19

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010202372966U CN201714733U (en) 2010-06-25 2010-06-25 Servo hydraulic oil cylinder

Country Status (1)

Country Link
CN (1) CN201714733U (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102278335A (en) * 2011-07-20 2011-12-14 岳立辉 Sliding type protective cover for oil cylinder
CN104132022A (en) * 2014-07-30 2014-11-05 湖北三江航天万山特种车辆有限公司 Simple servo oil cylinder
CN104265735A (en) * 2014-10-16 2015-01-07 山东同力液压装备有限公司 Precise-displacement non-contact hydraulic cylinder
CN105387019A (en) * 2015-12-25 2016-03-09 河海大学常州校区 Built-in guide oil cylinder
CN105715608A (en) * 2014-11-30 2016-06-29 中国科学院沈阳自动化研究所 Underwater hydraulic linear cylinder mechanism with position feedback function
CN106224320A (en) * 2016-09-12 2016-12-14 天津大学 Inbuilt displacement sensor integrated form list rod symmetrical hydraulic cylinder
CN108150482A (en) * 2017-12-14 2018-06-12 陕西昆仑机械装备制造有限责任公司 Self-adapting type reciprocating movement oil cylinder control method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102278335A (en) * 2011-07-20 2011-12-14 岳立辉 Sliding type protective cover for oil cylinder
CN104132022A (en) * 2014-07-30 2014-11-05 湖北三江航天万山特种车辆有限公司 Simple servo oil cylinder
CN104132022B (en) * 2014-07-30 2016-08-31 湖北三江航天万山特种车辆有限公司 A kind of simple servo-cylinder
CN104265735A (en) * 2014-10-16 2015-01-07 山东同力液压装备有限公司 Precise-displacement non-contact hydraulic cylinder
CN105715608A (en) * 2014-11-30 2016-06-29 中国科学院沈阳自动化研究所 Underwater hydraulic linear cylinder mechanism with position feedback function
CN105387019A (en) * 2015-12-25 2016-03-09 河海大学常州校区 Built-in guide oil cylinder
CN106224320A (en) * 2016-09-12 2016-12-14 天津大学 Inbuilt displacement sensor integrated form list rod symmetrical hydraulic cylinder
CN108150482A (en) * 2017-12-14 2018-06-12 陕西昆仑机械装备制造有限责任公司 Self-adapting type reciprocating movement oil cylinder control method
CN108150482B (en) * 2017-12-14 2019-08-23 陕西昆仑机械装备制造有限责任公司 Self-adapting type reciprocating movement oil cylinder control method

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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: 20110119

Termination date: 20140625

EXPY Termination of patent right or utility model