CN202612251U - Hydraulic speed-increasing cylinder - Google Patents

Hydraulic speed-increasing cylinder Download PDF

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Publication number
CN202612251U
CN202612251U CN 201220116227 CN201220116227U CN202612251U CN 202612251 U CN202612251 U CN 202612251U CN 201220116227 CN201220116227 CN 201220116227 CN 201220116227 U CN201220116227 U CN 201220116227U CN 202612251 U CN202612251 U CN 202612251U
Authority
CN
China
Prior art keywords
piston rod
worm
worm gear
center
external thread
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.)
Withdrawn - After Issue
Application number
CN 201220116227
Other languages
Chinese (zh)
Inventor
黄城镇
袁志刚
施海峰
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.)
NANTONG JIUJIU HYDRAULIC MACHINERY MANUFACTURING Co Ltd
Original Assignee
NANTONG JIUJIU HYDRAULIC 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 NANTONG JIUJIU HYDRAULIC MACHINERY MANUFACTURING Co Ltd filed Critical NANTONG JIUJIU HYDRAULIC MACHINERY MANUFACTURING Co Ltd
Priority to CN 201220116227 priority Critical patent/CN202612251U/en
Application granted granted Critical
Publication of CN202612251U publication Critical patent/CN202612251U/en
Anticipated expiration legal-status Critical
Withdrawn - After Issue legal-status Critical Current

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Abstract

The utility model relates to a hydraulic speed-increasing cylinder which comprises a cylinder body, and a piston rod arranged in the cylinder body. An inner cavity is arranged in the center of the end portion of the piston rod in a drilling mode. A plunger is arranged in the inner cavity. An oil in-out passage communicated with the inner cavity is arranged in the center of the plunger. The end portion of the piston rod is in threaded connection with a stop nut. The hydraulic speed-increasing cylinder is characterized in that an external thread regulating sleeve is sleeved outside the piston rod, and the external thread regulating sleeve is matched with the piston rod in a sliding mode. The hydraulic speed-increasing cylinder further comprises a worm and gear box. An inner thread is arranged in the center of a worm wheel of the worm and gear box. The worm wheel is in threaded connection with the external thread regulating sleeve through the inner thread. A worm of the worm and gear box is provided with a rotary encoder. A motor is used for driving the worm of the worm and gear box to rotate, and accordingly the worm wheel is driven to rotate, so the external thread regulating sleeve in threaded connection with the worm wheel can axially move along the piston rod, and the stroke of the speed-increasing cylinder can be changed through change of the distance between the external thread regulating sleeve and the stop nut.

Description

A kind of hydraulic pressure speedup cylinder
Technical field
The utility model relates to a kind of hydraulic pressure speedup cylinder, and particularly a kind of stroke adjustment is convenient, hydraulic pressure speedup cylinder accurately.
Background technique
Hydraulic pressure speedup cylinder is composited by piston cylinder and plunger case, and it can improve the movement velocity of parts on the basis that does not increase pump duty.Utilize the speedup cylinder can realize the technological action of F.F., rewind down.Traditional speedup cylinder structure comprises cylinder body, is arranged on the piston rod in the cylinder body, and end center drill one inner chamber of piston rod is provided with plunger in the inner chamber, the center of plunger open one with the turnover oil passage of inner chamber conducting.End thread at piston rod connects a stop nut.This stop nut is the stroke of speedup cylinder apart from the distance of cylinder body end face.When carrying out the adjustment of speedup cylinder stroke, need the hand rotation stop nut, degree of regulation is poor, needs adjustment repeatedly, regulates inconvenient.
Summary of the invention
The technical problem that the utility model will solve provides convenient, the hydraulic pressure speedup cylinder accurately of a kind of stroke adjustment.
For solving the problems of the technologies described above, the technological scheme of the utility model is: a kind of hydraulic pressure speedup cylinder comprises cylinder body; Be arranged on the piston rod in the cylinder body, end center drill one inner chamber of piston rod is provided with plunger in the inner chamber; The center of plunger open one with the turnover of inner chamber conducting oil passage; End thread at piston rod connects a stop nut, and its innovative point is: said piston rod is set with the outside thread adjustment sleeve that is slidingly matched with it outward, also comprises worm gear case; The worm gear center of said worm gear case has internal thread, and said worm gear is threaded with the outside thread adjustment sleeve through internal thread; On the worm screw of said worm gear case rotating coder is installed.
The advantage of the utility model is: utilize the worm screw of motor driving worm gear case to rotate; The rotation of drive worm gear; Make the outside thread adjustment sleeve that is threaded with worm gear move axially, change the distance between outside thread adjustment sleeve and the stop nut, can change speedup cylinder stroke along piston rod.
Description of drawings
Fig. 1 is the utility model hydraulic pressure speedup cylinder structure schematic representation.
Embodiment
As shown in Figure 1, comprise the oily passage of cylinder body 1, piston rod 2, plunger 3, turnover 4, stop nut 5, outside thread adjustment sleeve 6, worm gear case 7, worm gear 8, worm screw 9.
Be provided with piston rod 2 in the above-mentioned cylinder body 1, this piston rod 2 is two rod structures, and piston rod 2 upper end portion center drills one inner chamber is provided with plunger 3 in the inner chamber, the center of plunger 3 open one with the turnover oil passage 4 of inner chamber conducting.
The upper end portion of piston rod 2 stop nut 5 that is threaded is set with the outside thread adjustment sleeve 6 that is slidingly matched with it outside piston rod 2 tops.
Worm gear case 7 is installed in cylinder body 1 top, and its worm screw 9 is driven through retarder by motor, on worm screw 9, rotating coder is installed.Worm gear 8 centers of worm gear case 7 have internal thread, and this worm gear 8 is threaded with outside thread adjustment sleeve 6 through internal thread.
When carrying out stroke adjustment; Utilize the worm screw 9 of motor driving worm gear case to rotate, drive worm gear 8 rotations, make the outside thread adjustment sleeve 6 that is threaded with worm gear 8 move axially along piston rod 2; Change the distance between outside thread adjustment sleeve 6 and the stop nut 5, can change speedup cylinder stroke.Can calculate the rotating cycle of worm screw 9 through rotating coder, converse the shift motion of outside thread adjustment sleeve 6, can accurately control the adjustment of speedup cylinder stroke.

Claims (1)

1. a hydraulic pressure speedup cylinder comprises cylinder body, is arranged on the piston rod in the cylinder body; End center drill one inner chamber of piston rod; Be provided with plunger in the inner chamber, the center of plunger open one with the turnover of inner chamber conducting oil passage, connect a stop nut in the end thread of piston rod; It is characterized in that: said piston rod is set with the outside thread adjustment sleeve that is slidingly matched with it outward; Also comprise worm gear case, the worm gear center of said worm gear case has internal thread, and said worm gear is threaded with the outside thread adjustment sleeve through internal thread; On the worm screw of said worm gear case rotating coder is installed.
CN 201220116227 2012-03-26 2012-03-26 Hydraulic speed-increasing cylinder Withdrawn - After Issue CN202612251U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220116227 CN202612251U (en) 2012-03-26 2012-03-26 Hydraulic speed-increasing cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220116227 CN202612251U (en) 2012-03-26 2012-03-26 Hydraulic speed-increasing cylinder

Publications (1)

Publication Number Publication Date
CN202612251U true CN202612251U (en) 2012-12-19

Family

ID=47345954

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220116227 Withdrawn - After Issue CN202612251U (en) 2012-03-26 2012-03-26 Hydraulic speed-increasing cylinder

Country Status (1)

Country Link
CN (1) CN202612251U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102536950A (en) * 2012-03-26 2012-07-04 南通久久液压机械制造有限公司 Hydraulic speed-up cylinder
CN107661891A (en) * 2017-10-25 2018-02-06 江苏鑫贝诺冶金机械有限公司 A kind of electrodynamic type compression system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102536950A (en) * 2012-03-26 2012-07-04 南通久久液压机械制造有限公司 Hydraulic speed-up cylinder
CN102536950B (en) * 2012-03-26 2015-06-10 南通久久液压机械制造有限公司 Hydraulic speed-up cylinder
CN107661891A (en) * 2017-10-25 2018-02-06 江苏鑫贝诺冶金机械有限公司 A kind of electrodynamic type compression system

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20121219

Effective date of abandoning: 20150610

RGAV Abandon patent right to avoid regrant