CN87101934A - Electronic jack - Google Patents
Electronic jack Download PDFInfo
- Publication number
- CN87101934A CN87101934A CN87101934.5A CN87101934A CN87101934A CN 87101934 A CN87101934 A CN 87101934A CN 87101934 A CN87101934 A CN 87101934A CN 87101934 A CN87101934 A CN 87101934A
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- cover
- lifting
- paid
- electronic jack
- ball
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Abstract
The present invention be a kind of automobile accumulator jar that utilizes as power supply, be mainly used in the electronic jack of automobile inspection.
It is taken over a business etc. to form by a magneto miniature cocurrent electromotor, a cover worm gear pair, two cover ball wire bar pairs and scalable.
This jack has advantages such as friction drag is little, driving efficiency is high, axial stiffness is strong, lifting is highly big.Owing to be used in combination with worm gear pair, overcome the weakness of not self-locking of ball screw again.
This jack can adopt electronic and manual two kinds of mode of operation.If change the motor pattern, also can adopt source of AC, be suitable for the usefulness of the lifting in all factories, mine, railway, building site.
Description
The present invention be a kind of automobile accumulator jar that utilizes as power supply, be mainly used in the electronic jack of automobile inspection.
At present, in automobile inspection, generally use lifting screw, hydraulic jack.This series products does not have propulsion source and operatorless device, and entirely by artificial hand, hand or foot-operated, operation is heavy, and labour intensity is big.Particularly open-air open work, even will take off under the car, carry out work in extremely limited space, workman's labor condition is arduous.A kind of electronic jack of Chu Xianing is to adopt single-phase or three-phase alternating current motor and traditional trapezoid spiral structure in recent years.Because power limitations can only or have the building site of power supply to use in factory building, workshop.And efficient is lower.It can not be as the available attachment of automobile, the more incompatibility automobile maintenance work of highway in the open air.
In order to address the above problem, the invention provides a kind of electronic jack that utilizes the automobile accumulator jar as power supply.This jack is by a custom-designed magneto miniature cocurrent electromotor, one the cover worm gear pairs, two the cover ball screws pay and scalable take over a business form.Groundwork is:
Drive two cover ball screws by electrical motor by worm gear pairs and pay rotation, and then realize the dipping and heaving of jack.Purpose is to improve working conditions, and reduces labor intensity, and realizes the automation of car jack.
Concrete structure of the present invention is provided by following examples and accompanying drawing thereof.
Figure (1) is a fundamental diagram of the present invention.
Figure (2) is a structural representation of the present invention.Among the figure each title all with figure (1) in the expression identical.
The accompanying drawing note: 1 magneto miniature cocurrent electromotor, 2 worm screws, 3 worm gears, 4 ball screws, 5 inside and outside ball nut screw mandrels, 6 ball nut covers, 7 lifting covers, 8 scalable are taken over a business, 9 locating dowel pins, 10 fixing screws, 11 shells, 12 winds.
Describe details of the present invention and working condition in detail below in conjunction with figure (1) figure (2).
Magneto miniature cocurrent electromotor (1) voltage is 12V, and power is 250～550W, and is vertical, and its lengthening main shaft is connected with worm screw (2), and worm screw (2) drives worm gear (3) rotation, and worm gear (3) is rigidly connected with ball screw (4). Inside and outside ball nut screw mandrel (5) is the root hollow shaft, and it is the nut during the first set ball screw is paid, and is again the screw mandrel during the second cover ball screw is paid. Its concrete structure is: make interior ball screw thread at its underpart inner hole wall, become nut, cooperate with ball screw (4) by ball; Make at an upper portion thereof outer ball screw thread on the outer garden, become screw mandrel, cooperate with ball nut (6) by ball. Ball nut (6) also is a hollow shaft, and its underpart endoporus is made interior ball screw thread, becomes nut, cooperates by the external screw thread of ball with inside and outside ball nut screw mandrel (5); Endoporus is made common internal thread and the threaded engagement that can regulate (8) at an upper portion thereof. The Wai Yuan top of ball nut cover (6) has one vertically can hold alignment pin (9) at the gathering sill of the relative elevating movement of interior do. Alignment pin (9) is fixed on the lifting cover (7). Its effect has two: the one, and restriction ball nut cover (6) can not rotate with inside and outside ball nut screw mandrel (5); The 2nd, drive lifting cover (7) and do elevating movement. Also have vertically one on the outer garden of lifting cover (7) and can hold dog screw (10) at the gathering sill of the relative elevating movement of interior do.
Dog screw (10) is fixed on the shell (11). Its effect is that restriction lifting cover (7) can not rotate with ball nut cover (6), and can only do vertically elevating movement. Can regulate (8) and be used for regulating the reservation height. Shell (11) is the stationary housing that whole mechanisms are installed. Wind (12) is in particular cases using.
The minimum altitude of this jack is 180 millimeters.Lifting highly is 214 millimeters (containing adjustable-height).Rising or falling speed equates, is 300 millimeters/minute.About one minute of working cycle, consumption of current are percent once.Be suitable for the medium and small automotive use below 10 tons.
Embodiments of the invention are:
Supply with magneto miniature cocurrent electromotor (1) 12V power supply by the automobile accumulator jar, electric motor starting drives ball screw (4) by worm screw (2) and worm gear (3) and rotates.Because the first cover ball screw is paid the second cover ball screw difference of paying and is that helical pitch equates the diameter difference.So their lead angle is just different.The lead angle that the first cover ball screw is paid is greater than second cover.The friction drag of the first cover ball screw is also greater than second cover.
Therefore, when worm gear (3) drove ball screw (4) rotation, (5) And's inside and outside ball nut screw mandrel during the first cover ball screw is paid did not rise, and only do rotation synchronously.And the ball nut (6) of the second cover ball screw in paying at first rises.When the apical position that is raised to inside and outside ball nut screw mandrel (5), in the time of can not rising, interior outer nut screw mandrel (5) then stops the rotation again.At this moment, the second cover ball screw is paid resistance and is increased, and moment surpasses first cover.At this moment, the inside and outside ball nut screw mandrel (5) during the first cover ball screw is paid then rises.Because at this moment be fixed on the lower end position that locating dowel pin (9) on the lifting cover (7) has been in ball nut (6) guide groove, so, when inside and outside ball nut screw mandrel (5) rises, must promote ball nut cover (6) and rise, drive lifting cover (7) by locating dowel pin (9) simultaneously and rise together.When inside and outside ball nut screw mandrel (5) rises to the apical position of ball screw (4), run into breaker device, supply disconnecton, upward movement stops.
Change the motor hand of rotation, can finish whole descending stroke successively, run into lower end terminal point breaker device after, supply disconnecton, all strokes finish.
Because the direct current generator main shaft is king-size, makes a positive square head in its extension shaft head outer end, but wind of overcoat. Break down and other reason can not be electronic the time at motor, can hand lifting. Therefore, this jack can adopt electronic and manual two kinds of working methods.
The present invention has adopted rolling screw mechanism. It is little that rolling screw has frictional resistance, transmission efficiency and highly sensitive, the advantage such as axial rigidity is stronger. Also owing to be used in combination with the worm gear pairs device, success has overcome the weakness that ball screw can not self-locking again. Make the jack lifting can rest on the optional position, the danger of having no to glide, safe and reliable when guaranteeing work.
This jack has the lift that two cover ball screws are paid, and adds the adjusting height that can regulate, just possesses the summation of three cover spiral lifts. Operating efficiency is 2～3 times of similar traditional product, and lifting highly is 1.6 times.
Applying of this jack can be developed many kinds, changes into single-phase the 12V direct current generator or three phase alternating current motor. Just can popularize all factories, mine, railway and various building site, the usefulness for the automatic lifting lifting has broad application prospects.
Claims (7)
1, a kind of electronic jack that is mainly used in automobile inspection, it is characterized in that it by magneto miniature cocurrent electromotor, worm gear pairs, compound ball screw pay, scalable is taken over a business and lifting cover etc. is formed.
2, electronic jack according to claim 1, it is characterized in that said magneto miniature cocurrent electromotor be one through customized design, voltage 12V, power 250～550W, vertical, main shaft extended type, novel motor that can forward and backward.
3, electronic jack according to claim 1 is characterized in that said compound ball screw is paid with worm gear pairs to be rigidly connected.
4, electronic jack according to claim 1, it is characterized in that it is to be paid by first and second liang of cover ball screws to combine that said compound ball screw is paid, the screw mandrel during the nut during wherein the first cover ball screw is paid and the second cover ball screw are paid is (the claiming inside and outside ball nut screw mandrel) that is made of one.
5, electronic jack according to claim 1 is characterized in that the outer garden of ball nut cover has a guide groove that can supply to be fixed on locating dowel pin that lifting puts in the relative dipping and heaving of interior do vertically.
6, electronic jack according to claim 1 is characterized in that the outer garden of lifting cover has one vertically and can supply to be fixed on fixing screw on the shell at the guide groove of the relative dipping and heaving of interior do.
7, electronic jack according to claim 1 is characterized in that motor lengthening spindle nose outer end is a square head, wind that can a hand lifting of confession of overcoat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87101934 CN1007616B (en) | 1987-03-11 | 1987-03-11 | Motor-driven jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87101934 CN1007616B (en) | 1987-03-11 | 1987-03-11 | Motor-driven jack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN87101934A true CN87101934A (en) | 1988-09-21 |
| CN1007616B CN1007616B (en) | 1990-04-18 |
Family
ID=4813691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87101934 Expired CN1007616B (en) | 1987-03-11 | 1987-03-11 | Motor-driven jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1007616B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102321787A (en) * | 2011-08-31 | 2012-01-18 | 太仓市华瑞真空炉业有限公司 | Oil quenching gas-cooled vacuum furnace |
| CN106198224A (en) * | 2016-08-31 | 2016-12-07 | 姜会增 | Load load maintainer |
| CN108233619A (en) * | 2018-01-31 | 2018-06-29 | 湖北环电磁装备工程技术有限公司 | The jack device that a kind of rimless combination type permanent-magnet linear synchronous motor directly drives |
| CN110104580A (en) * | 2018-12-11 | 2019-08-09 | 中国航空工业集团公司北京长城计量测试技术研究所 | A kind of telescopic automatic jacking device of twin-stage |
-
1987
- 1987-03-11 CN CN 87101934 patent/CN1007616B/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102321787A (en) * | 2011-08-31 | 2012-01-18 | 太仓市华瑞真空炉业有限公司 | Oil quenching gas-cooled vacuum furnace |
| CN106198224A (en) * | 2016-08-31 | 2016-12-07 | 姜会增 | Load load maintainer |
| CN108233619A (en) * | 2018-01-31 | 2018-06-29 | 湖北环电磁装备工程技术有限公司 | The jack device that a kind of rimless combination type permanent-magnet linear synchronous motor directly drives |
| CN110104580A (en) * | 2018-12-11 | 2019-08-09 | 中国航空工业集团公司北京长城计量测试技术研究所 | A kind of telescopic automatic jacking device of twin-stage |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1007616B (en) | 1990-04-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C13 | Decision | ||
| C14 | Grant of patent or utility model | ||
| C19 | Lapse of patent right due to non-payment of the annual fee |