CN2049222U - Automatic lock device for hydraulic shear's fork type elevatingtable - Google Patents

Automatic lock device for hydraulic shear's fork type elevatingtable Download PDF

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Publication number
CN2049222U
CN2049222U CN 89207522 CN89207522U CN2049222U CN 2049222 U CN2049222 U CN 2049222U CN 89207522 CN89207522 CN 89207522 CN 89207522 U CN89207522 U CN 89207522U CN 2049222 U CN2049222 U CN 2049222U
Authority
CN
China
Prior art keywords
leading screw
fork type
nut
elevatingtable
driving wheel
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Withdrawn
Application number
CN 89207522
Other languages
Chinese (zh)
Inventor
马守谦
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.)
GANSU POLYTECHNIC UNIV
Original Assignee
GANSU POLYTECHNIC UNIV
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 GANSU POLYTECHNIC UNIV filed Critical GANSU POLYTECHNIC UNIV
Priority to CN 89207522 priority Critical patent/CN2049222U/en
Publication of CN2049222U publication Critical patent/CN2049222U/en
Withdrawn legal-status Critical Current

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Abstract

The utility model relates to an automatic positioning and locking device for a hydraulic shearing fork type elevating platform, which is mainly composed of a guide screw nut mechanism and an electromagnetic brake. When a platform plate lifts, the movement of the guide screw nut mechanism is stopped by the electromagnetic brake according to the actions of controlling signals with different scheduled positions, which enables the platform plate to be positioned and locked at the scheduled position through movable wheels 3 and displacement bars 2.

Description

Automatic lock device for hydraulic shear's fork type elevatingtable
The utility model is a kind of positioning and locking device that is used for the hydraulic fork type bay-lift, and it belongs to the brake equipment of lifting machinery in elevator machinery and the stage machinery.
The positioning and locking method and the device that are adopted of hydraulic fork type bay-lift has in the prior art:
1, hydraulic control method and device such as complementary pump repairing are located or adopted in the locking loop of adopting the check valve by fluid control to constitute.But because the inner leak of liquid that occurs of Hydraulic Elements, time for positioning is long, and platen still can sink to some extent, causes the location inaccurate;
2, installing positive stop or employing latch are fixed on the driving wheel slide rail, make structure become complicated, and can not carry out instant location as required, use inconvenient.
For overcoming the defective that above-mentioned prior art exists, the utility model adopts the positioning and locking device of being made up of the screw-nut body that is subjected to dynamo-electric brake control, and is not only simple in structure, and can position at any time.
Be illustrated in figure 1 as constructional drawing of the present utility model, wherein 1 is platen, the 2nd, and the displacement thick stick of hydraulic fork type bay-lift, there is a driving wheel 3 that can move with its along continuous straight runs its end; 4 is leading screws, and the one end connects with driving wheel 3; Leading screw 4 constitutes the feed screw nut transmission device with nut 5; The 6th, magnet stopper, but stop-off nut 5 stops operating it.Nut 5 is fixed in the axial direction, so nut 5 can only rotate.Leading screw 4 links with driving wheel 3, can only carry out straight reciprocating motion in the axial direction.
During platen 1 lifting, displacement thick stick 2 drives driving wheel 3 along continuous straight runs and moves, driving wheel 3 drives leading screw 4 again and carries out straight-line motion vertically, thereby change the vertical line motion up and down of platen 1 straight-line motion vertically of leading screw 4 into, change the rotation (lead angle of leading screw>>friction angle) of nut 5 at last by leading screw into.Magnet stopper 6 can be according to the control signal action in different desired locations, stop-off nut 5 stops operating it, makes leading screw 4, driving wheel 3 also stop to move, thereby makes displacement thick stick 2 stop displacement, platen 1 is positioned on the desired location, has reached the purpose of self-orientation locking.
The utility model has realized that not only platen 1 accurately automatic positioning lock at an arbitrary position is tight, and control is easy to realize programming Control, and simple in structure, and whole device is cheap.

Claims (2)

1, a kind of self-orientation latching device that is used for hydaulic lift platform is made up of driving wheel 3, leading screw 4, nut 5, magnet stopper 6, it is characterized in that leading screw 4 and driving wheel 3 link, and makes the straight reciprocating motion of leading screw 4 change the vertical shifting up and down of platen 1 into;
2,, it is characterized in that magnet stopper 4 can reach with leading screw 4 joining driving wheels 3 leading screw 4 and stop to move, thereby make platen 1 positioning and locking according to the control signal stop-off nut 5 in different desired locations by the described self-orientation latching device of claim 1.
CN 89207522 1989-05-27 1989-05-27 Automatic lock device for hydraulic shear's fork type elevatingtable Withdrawn CN2049222U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 89207522 CN2049222U (en) 1989-05-27 1989-05-27 Automatic lock device for hydraulic shear's fork type elevatingtable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 89207522 CN2049222U (en) 1989-05-27 1989-05-27 Automatic lock device for hydraulic shear's fork type elevatingtable

Publications (1)

Publication Number Publication Date
CN2049222U true CN2049222U (en) 1989-12-13

Family

ID=4864364

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 89207522 Withdrawn CN2049222U (en) 1989-05-27 1989-05-27 Automatic lock device for hydraulic shear's fork type elevatingtable

Country Status (1)

Country Link
CN (1) CN2049222U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109987537A (en) * 2019-03-24 2019-07-09 宁波天胜传动件有限公司 A kind of scissor-like jack and its application method of safety and firmness

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109987537A (en) * 2019-03-24 2019-07-09 宁波天胜传动件有限公司 A kind of scissor-like jack and its application method of safety and firmness

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PB01 Publication
C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee