CN202326510U - Protective king protection device for built-in displacement sensor of super-long stroke hydraulic cylinder - Google Patents

Protective king protection device for built-in displacement sensor of super-long stroke hydraulic cylinder Download PDF

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Publication number
CN202326510U
CN202326510U CN2011204385838U CN201120438583U CN202326510U CN 202326510 U CN202326510 U CN 202326510U CN 2011204385838 U CN2011204385838 U CN 2011204385838U CN 201120438583 U CN201120438583 U CN 201120438583U CN 202326510 U CN202326510 U CN 202326510U
Authority
CN
China
Prior art keywords
oil cylinder
cylinder
small
sensor
piston rod
Prior art date
Application number
CN2011204385838U
Other languages
Chinese (zh)
Inventor
黄智武
蒋耀岳
黄科夫
鲁腊福
Original Assignee
韶关液压件厂有限公司
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 韶关液压件厂有限公司 filed Critical 韶关液压件厂有限公司
Priority to CN2011204385838U priority Critical patent/CN202326510U/en
Application granted granted Critical
Publication of CN202326510U publication Critical patent/CN202326510U/en

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Abstract

The utility model relates to a protective king protection device for a built-in displacement sensor of a super-long stroke hydraulic cylinder. A small oil cylinder bottom and an oil cylinder bottom are fixed together through one socket head screw, and thus, a sensor, a sensor protecting tube assembly and a small cylinder barrel which are connected together with the small oil cylinder bottom and the oil cylinder bottom are also fixed together; a magnet ring and a copper ring are connected together with a small piston rod through another socket head screw; and when assembled, an oil cylinder piston rod head is connected with a piston rod of an oil cylinder after being connected with a connecting flange and a small piston rod head. The sensor and a protecting tube are arranged in a small oil cylinder. As the inner diameter of a piston of the small oil cylinder is smaller, and the rigidity of a small oil cylinder barrel is far greater than that of an original protecting tube, even if the oil cylinder finishes strokes, the deformation of the small cylinder barrel and the small oil cylinder barrel is also within a safe range, and thus, the sensor cannot be damaged when the oil cylinder runs.

Description

The anti-apparatus for bending of the built-in displacement transducer protection of overlength stroke hydraulic cylinder

Technical field

The utility model belongs to the oil hydraulic cylinder technical field, relates to the anti-apparatus for bending of the built-in displacement transducer protection of a kind of overlength stroke hydraulic cylinder.

Background technique

Along with the development of hydraulics, the oil hydraulic cylinder of more and more overlength strokes all disposes built-in sensor, is generally to prevent that sensor from breaking and fracture when oil hydraulic cylinder moves; Can be in the inside of oil hydraulic cylinder the sensor installation protective tube, but when oil cylinder stroke surpasses 6m, owing to after oil cylinder reaches range; The sensor protection pipe becomes cantilever structure, and rigidity is not enough, and the amplitude of its tenesmus increases; So in cylinder action, the impaired risk of sensor also increases thereupon.Therefore need design a kind of good rigidly, good stability, protector for sensor that amount of deformation is little.

The model utility content

In order to overcome above-mentioned shortcoming, a kind of good rigidly, good stability, the anti-apparatus for bending of the built-in displacement transducer protection of overlength stroke hydraulic cylinder that amount of deformation is little are provided at present.

The utility model solves the technological scheme that its technical problem adopted: the anti-apparatus for bending of the built-in displacement transducer protection of a kind of overlength stroke hydraulic cylinder; The small oil tank cylinder bottom is fixed through socket head screw and oil cylinder cylinder bottom, thereby also is fixed together with the oil cylinder cylinder bottom with sensor, sensor protection pipe assembly, little cylinder barrel that the small oil tank cylinder bottom links together; Magnet ring and copper ring link together through socket head screw and small piston rod; The oil cylinder piston club head is connected with the piston rod of oil cylinder earlier with after adpting flange, small piston club head connect when assembling again.

The beneficial effect of the utility model: sensor and protective tube are contained in small oil tank inside; Because the small oil tank piston inner diameter is less; And the rigidity of small oil tank cylinder barrel is far longer than the rigidity of former protective tube; When even oil cylinder is covered stroke, the amount of deformation of little cylinder barrel small oil tank cylinder barrel also in safety range, the sensor phenomenon that when oil cylinder moves, just can not be damaged like this.

Description of drawings

Fig. 1 is the utility model structure sectional view.

Among the figure: 1-1-oil cylinder piston bar, 2-oil cylinder cylinder head, 3-oil cylinder flange, 4-cylinder tube, 5-oil cylinder piston; 6-oil cylinder cylinder bottom, 7-small oil tank cylinder bottom, 8-socket head screw, 9-sensor; 10-sensor protection pipe assembly, 11-copper ring, 12--magnet ring, the little cylinder barrel of 13-; The 14-small piston rod, 15-copper guide sleeve, 16-is flange in succession, 17-oil cylinder piston club head.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is further specified.

Referring to Fig. 1; The anti-apparatus for bending of the built-in displacement transducer protection of a kind of overlength stroke hydraulic cylinder; Small oil tank cylinder bottom 7 is fixing with oil cylinder cylinder bottom 8 through socket head screw 8, thereby also is fixed together with oil cylinder cylinder bottom 8 with sensor 9, sensor protection pipe assembly 10, little cylinder barrel 13 that small oil tank cylinder bottom 7 links together; Magnet ring 12 links together through socket head screw and small piston rod 14 with copper ring 11; Oil cylinder piston club head 17 is connected with the piston rod 1 of oil cylinder earlier with after adpting flange 16, small piston rod 14 bar heads connect when assembling again.

Because small piston rod 14 is fixed together with oil cylinder piston bar 1, when oil cylinder was worked, oil cylinder piston bar 1 drove small piston rod 14 with magnet ring 12 actions; Produce relative movement with the sensor magnetic scale, thereby realized the work of sensor, at this moment; Copper guide sleeve 15 in the small piston rod 14 is held sensor protection pipe assembly 10 always, and small piston rod 14 is held little cylinder barrel 13, makes sensor protection pipe assembly 10, the little cylinder barrel 13 of little work have enough rigidity; Amount of deformation is much smaller than the sensor safe requirement, thereby protects sensor not to be damaged effectively, simultaneously; Adopt copper guide sleeve 15, greatly improved the wear resistance of sensor protection pipe assembly; Little cylinder barrel 13 cylindrical hard chromium plating have also increased the wear resistance of little cylinder barrel 13, thereby have prolonged the working life of whole protecting device.

Sensor of the utility model and protective tube are contained in small oil tank inside; Because the small oil tank piston inner diameter is less; And the rigidity of small oil tank cylinder barrel is far longer than the rigidity of former protective tube; When even oil cylinder is covered stroke, the amount of deformation of little cylinder barrel small oil tank cylinder barrel is also in safety range, and the sensor phenomenon that when oil cylinder moves, just can not be damaged has good rigidly, good stability, characteristics that amount of deformation is little like this.

Claims (1)

1. apparatus for bending is prevented in the built-in displacement transducer protection of overlength stroke hydraulic cylinder; It is characterized in that: the small oil tank cylinder bottom is fixed through socket head screw and oil cylinder cylinder bottom, thereby also is fixed together with the oil cylinder cylinder bottom with sensor, sensor protection pipe assembly, little cylinder barrel that the small oil tank cylinder bottom links together; Magnet ring and copper ring link together through socket head screw and small piston rod; The oil cylinder piston club head is connected with the piston rod of oil cylinder earlier with after adpting flange, small piston club head connect when assembling again.
CN2011204385838U 2011-11-08 2011-11-08 Protective king protection device for built-in displacement sensor of super-long stroke hydraulic cylinder CN202326510U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011204385838U CN202326510U (en) 2011-11-08 2011-11-08 Protective king protection device for built-in displacement sensor of super-long stroke hydraulic cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011204385838U CN202326510U (en) 2011-11-08 2011-11-08 Protective king protection device for built-in displacement sensor of super-long stroke hydraulic cylinder

Publications (1)

Publication Number Publication Date
CN202326510U true CN202326510U (en) 2012-07-11

Family

ID=46438491

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011204385838U CN202326510U (en) 2011-11-08 2011-11-08 Protective king protection device for built-in displacement sensor of super-long stroke hydraulic cylinder

Country Status (1)

Country Link
CN (1) CN202326510U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103016447A (en) * 2013-01-15 2013-04-03 无锡市三信传动控制有限公司 Constant-pressure and constant-force hydraulic servo cylinder with single outlet rod
CN104165171A (en) * 2014-07-30 2014-11-26 三一重工股份有限公司 Sensor protecting device, oil cylinder and engineering machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103016447A (en) * 2013-01-15 2013-04-03 无锡市三信传动控制有限公司 Constant-pressure and constant-force hydraulic servo cylinder with single outlet rod
CN104165171A (en) * 2014-07-30 2014-11-26 三一重工股份有限公司 Sensor protecting device, oil cylinder and engineering machine

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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: 20120711

Termination date: 20141108

EXPY Termination of patent right or utility model