CN2411944Y - Starting servo mechanism of scissor vehicle lifter - Google Patents
Starting servo mechanism of scissor vehicle lifter Download PDFInfo
- Publication number
- CN2411944Y CN2411944Y CN 00216646 CN00216646U CN2411944Y CN 2411944 Y CN2411944 Y CN 2411944Y CN 00216646 CN00216646 CN 00216646 CN 00216646 U CN00216646 U CN 00216646U CN 2411944 Y CN2411944 Y CN 2411944Y
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- CN
- China
- Prior art keywords
- bearing pin
- upper fixed
- hydraulic ram
- fixed rod
- lifter
- 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
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Abstract
The utility model relates to a starting servo mechanism of a scissor type vehicle lifter. The utility model is characterized in that the utility model comprises a limited block which is arranged on an upper fixed rod of the lifter, and a starting rod, wherein, the middle part of which is hinged on the upper fixed rod near the limited point; a pin shaft which is hinged with the top end of a piston rod of the lifter is arranged on one end of the starting rod, and a rolling wheel which can roll on a bottom plate of the lifter is arranged on the other end of the starting rod.
Description
The utility model is about elevating gear, particularly about the lifting machine of vehicle.
Existing scissors vehicle lift (claiming hydraulic pressure truss-like vehicle lift again), it by the motion of the piston rod of hydraulic ram order about be arranged between panel and the base plate by upper fixed rod, upper moveable rod, top shoe, lower fixed rod, the connecting rod slider mechanism that forms of moving bar, sliding block stretches down, thereby make panel lifting abreast, realize that its chassis is placed in the vehicle lifting on the panel.This scissors vehicle lift compare with general column vehicle lift have simple in structure, in light weight, conveniently moving, dexterous characteristics, and after shrinking, the complete machine height is little, be well suited for the lifting of little vehicle, particularly car of crack, ground, chassis height, so be subjected to the welcome of automotive servicing manufacturer deeply.But also there is certain defective in this scissors vehicle lift, initial period in lifting, therefore the axis of hydraulic ram and shaft are hinged on the angle of axis of upper fixed rod on piston rod top generally about 13 degree, have only oil cylinder working-pressure about 20% to be used for lifting.Along with the lifting of panel, above-mentioned angle continues to increase, and the live part that oil cylinder working-pressure is used for lifting also increases by sinusoidal function thereupon.Because the scissors vehicle lift greater than required this shortcoming of lifting power of later stage, so not only the oil cylinder design is too heavy but also need the high-capacity motor of configuration, has improved cost at required lifting power of lifting initial stage.
The purpose of this utility model is to provide a kind of scissors vehicle lift starting boosting mechanism, and it can improve the hoisting force at lifting initial stage under identical hydraulic pressure, and the hoisting force in itself and later stage is close.
The purpose of this utility model is achieved in that a kind of scissors vehicle lift starting boosting mechanism, it is characterized in that: comprise the initiation pole that the limiting stopper that is arranged on the lifting machine upper fixed rod and middle part are hinged on the nearly above-mentioned limiting stopper place of upper fixed rod; Above-mentioned initiation pole one end is provided with the hinging pin shaft on the piston rod top of lifting machine, and the other end then is provided with the roller that can roll on lifter bottom plate.
Above-mentioned scissors vehicle lift starting boosting mechanism, it is characterized in that: described initiation pole and piston rod top pivotally attached bearing pin are offset to hydraulic ram axial line both sides respectively with the bearing pin that is arranged on hydraulic ram, and the angle of the line at above-mentioned two bearing pin centers and hydraulic ram axial line is not less than 2.2 degree.
The utility model has following advantage:
Since the arm of force (being the whole length of initiation pole) of initiation pole greater than weighing arm (initiation pole roller end is to the distance of its middle part hinge-point), so initial stage in lifting, the roller end of initiation pole contacts with lifter bottom plate when forming a mobile fulcrum, is about to piston rod and acts on the ratio increase of the hoisting force of upper fixed rod by the arm of force and weighing arm.Select suitable above-mentioned ratio, can make the hoisting force that acts on upper fixed rod, thereby can reduce the diameter and the necessary electromotor power of hydraulic ram, reduce complete machine weight and cost in approaching equating of whole lifting phase.
2. can use less oil pressure, reduce the wearing and tearing of hydraulic efficiency pressure system, improve service life.
3. the structure of former scissors vehicle lift there is not great change, thus easily manufactured, be easy to start.
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model action scheme drawing.
Fig. 3 is the utility model piston rod and hydraulic ram biasing pivotally attached scheme drawing.
Referring to Fig. 1.The utility model comprises limiting stopper 3 and initiation pole 8, and limiting stopper 3 is fixedly installed on the upper fixed rod 2 in the telescopic connecting rod slider mechanism between lifting machine side plate 1 and base plate 6.The middle part of initiation pole 8 is provided with bearing pin 7, and mat bearing pin 7 is hinged on upper fixed rod 2 nearly above-mentioned limiting stopper 3 places with it.One end of initiation pole 8 is provided with bearing pin 4, and this bearing pin 4 of nationality is hinged with the top of the piston rod 5 of lifting machine.The other end of initiation pole 8 then is provided with roller 9.When the panel 1 of lifting machine to base plate 6 is parallel when dropping to extreme lower position, the axis angle θ of the axis X-X of piston rod 5 and initiation pole 8 is about about 13 °.When lifting began, initiation pole 8 was around bearing pin 7 inhour rotation (see figure 2)s.And when roller 9 with after base plate 6 contacts, 8 one side of whole initiation pole are rotated around the axle center of roller 9 inhour, on the one hand again to right translation; Drive upper fixed rods 2 by its connecting rod slider mechanism projected path motion by bearing pin 7 simultaneously, panel 1 is moved on parallel.At this moment, piston rod 5 acts on the hoisting force on the upper fixed rod 2, then amplifies by initiation pole 8, and its amplification multiple is then decided with the ratio of the arm of force (roller 9 is to the distance of bearing pin 4) according to the weighing arm (roller 9 is to the distance of bearing pin 7) of initiation pole 8.Initiation pole 8 counterclockwise rotations are to certain angle, and its shaft leans on mutually with limiting stopper 3, make initiation pole 8 and upper fixed rod 2 lockings, and roller 9 also leaves base plate 6, and initiation pole 8 loses amplification, and this moment, piston rod and upper fixed rod 2 between angle increase, its lifting component has reached normal condition.Hoisting force when starting to walk for increasing the lifting machine can make bearing pin 4 and be arranged on hydraulic ram 10 tail ends to be separately positioned on the both sides (see figure 3) of hydraulic ram 10 axis X-X with the axis of increase piston rod and the angle theta of initiation pole axis in order to the bearing pin 11 that it is hinged on the base plate 6.The axial connecting line Y-Y of bearing pin 4 and bearing pin 11 and above-mentioned axis X-X have an angle that is not less than 2 ° like this, cause angle theta to increase to about 15 °.
Claims (2)
1, a kind of scissors vehicle lift starting boosting mechanism is characterized in that: comprise the initiation pole that the limiting stopper that is arranged on the lifting machine upper fixed rod and middle part are hinged on the nearly above-mentioned limiting stopper place of upper fixed rod; Above-mentioned initiation pole one end setting and lifting machine piston rod top pivotally attached bearing pin, the other end then is provided with the roller that can roll on lifter bottom plate.
2, scissors vehicle lift starting boosting mechanism according to claim 1, it is characterized in that: described initiation pole and piston rod top pivotally attached bearing pin are offset to hydraulic ram axial line both sides respectively with the bearing pin that is arranged on the hydraulic ram bottom, and the angle of the line at above-mentioned two bearing pin centers and hydraulic ram axial line is not less than 2 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00216646 CN2411944Y (en) | 2000-03-01 | 2000-03-01 | Starting servo mechanism of scissor vehicle lifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00216646 CN2411944Y (en) | 2000-03-01 | 2000-03-01 | Starting servo mechanism of scissor vehicle lifter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2411944Y true CN2411944Y (en) | 2000-12-27 |
Family
ID=33582356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00216646 Expired - Fee Related CN2411944Y (en) | 2000-03-01 | 2000-03-01 | Starting servo mechanism of scissor vehicle lifter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2411944Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100344482C (en) * | 2004-10-12 | 2007-10-24 | 浙江大学 | Lifting device of motor vehicle detecting system |
-
2000
- 2000-03-01 CN CN 00216646 patent/CN2411944Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100344482C (en) * | 2004-10-12 | 2007-10-24 | 浙江大学 | Lifting device of motor vehicle detecting system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |