CN1810623A - Multifunctional electric jack - Google Patents
Multifunctional electric jack Download PDFInfo
- Publication number
- CN1810623A CN1810623A CN 200610049266 CN200610049266A CN1810623A CN 1810623 A CN1810623 A CN 1810623A CN 200610049266 CN200610049266 CN 200610049266 CN 200610049266 A CN200610049266 A CN 200610049266A CN 1810623 A CN1810623 A CN 1810623A
- Authority
- CN
- China
- Prior art keywords
- relay
- comparator
- jack
- trigger circuit
- circuit
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/44—Devices, e.g. jacks, adapted for uninterrupted lifting of loads with self-contained electric driving motors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
- B66F3/16—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated actuated through bevel-wheel gearings
Abstract
The multifunctional electric jack consists of a screw jack, a speed reducer and a motor or an electric spanner. The motor is connected to the shaft of the speed reducer, the speed reducer has power output connected to the power input of the screw jack or the sleeve of the electric spanner. The control switch circuit for the jack or electric spanner consists of the first relay trigger circuit, the second relay trigger circuit and a motor limit signal feedback circuit. The multifunctional electric jack has the double functions of both jack and electric spanner, and, especially, the control switch circuit makes it possible for the jack to stop in any required position, stop automatically after reaching the rated load or stop in the limit position so as to suit different use states of jack.
Description
Technical field
The present invention relates to a kind of electronic jack that can be used for the dismounting of dilly wheel hub, especially a kind of electronic jack that utilizes the speed reduction gearing realization power-operated wrench function of electronic jack particularly relates to a kind of control circuit of controlling electronic jack and power-operated wrench work.
Background technology
Chinese patent CN2537695 discloses a kind of " the electronic jack that is used for the dismounting of small passenger car wheel hub ", it is made up of conventional manual screw-jack, speed change connecting device and power-operated wrench etc., the clutch end of speed change connecting device matches with the power intake of screw-jack and is connected, and the power intake of this device matches with the takeoff output sleeve of power-operated wrench and is connected.This invention makes the power of conventional manual screw-jack by power-operated wrench, realize electric operating screw-jack controllably, thereby make the car body elevate a turnable ladder process in the vehicle hub disassembly process realize electric operating, alleviated the labour intensity and the work capacity of wheel hub disassembly process greatly.In addition, Chinese patent CN2145783 also discloses a kind of electronic jack, by electrical motor, gear cluster, base gear, ball, base, studdle group, take over a business sleeve etc. and form.The former discloses the power-operated wrench function of electronic jack, the latter discloses a kind of concrete structure of adoptable screw-jack, above-mentioned electronic jack is because the limit circuit when the jack lifting is not set, only to the top or on earth the time or disconnect motor circuit, electrical motor just stops operating, and easily causes electrical motor to damage, and its size that ejects merit can't be set, thereby be necessary to do further improvement on this basis, making it function and more become perfect, it is reasonable that structure more becomes.
Technical scheme
The purpose of this invention is to provide a kind of electronic jack that can be used for the dismounting of dilly wheel hub thereby have the power-operated wrench function.
Another object of the present invention provides a kind ofly can regulate the electronic jack of its running condition according to motor load.
Technical scheme of the present invention is achieved in that
A kind of multifunctional motor-driven jack is provided, it includes screw-jack, reductor and electrical motor or power-operated wrench in forming, electrical motor is connected with the deceleration arbor, the clutch end of reductor and the power intake of screw-jack is connected or the sleeve of the clutch end of reductor and power-operated wrench is connected realizes that the master cock circuit of the electrical motor of jack or power-operated wrench function is connected and composed by the first relay trigger circuit, the second relay trigger circuit, electrical motor limit signal reactive circuit.
The described first relay trigger circuit, the formation of the second relay trigger circuit: by the vdc of power supply input after voltage stabilizing and dividing potential drop, insert the first relay trigger circuit comparator respectively, the backward end of the second relay trigger circuit comparator, trigger the input end power connection of telegraph key K1, trigger the in-phase end of the output termination first relay trigger circuit comparator of telegraph key K1, trigger the input end power connection of telegraph key K3, trigger the in-phase end of the output termination second relay trigger circuit comparator of telegraph key K3, setting switch as first relay and second relay, the input end power connection of telegraph key K2 resets, the output termination first relay trigger circuit comparator of telegraph key K2 resets, the backward end of the second relay trigger circuit comparator, through first relay trigger circuit comparator identification electric signal and after amplifying, output voltage signal is to first relay; After the identification of the second relay trigger circuit comparator was amplified, output voltage signal was to second relay; Control first relay and the second relay work respectively, the trigger electrode of first relay and second relay is connected with the electrical motor two ends; Provide forward or backwards voltage and the driving motor forward or reverse.
Electrical motor limit signal reactive circuit constitutes: by the vdc of power supply input after step-down, insert the end in the same way of signal feedback comparator, electric signal during motor operation also is input to the in-phase end of signal feedback comparator through the trigger electrode of first relay, second relay, the mouth of signal feedback comparator is connected with the reverse input end of the first relay trigger circuit and the second relay trigger circuit; The mode of operation of signal feedback comparator can feed back comparator backward end current potential by conditioning signal to be realized, thereby the value of electric current when setting motor load indirectly is corresponding with the torque of electrical motor.
Aforesaid multifunctional motor-driven jack, described signal feedback comparator is made up of two stage comparator.
Aforesaid multifunctional motor-driven jack, the wiring board of described master cock circuit are arranged in the master cock box, trigger telegraph key K1, K3 and the telegraph key K2 that resets and are arranged on the master cock box body.
Aforesaid multifunctional motor-driven jack is provided with the illumination light trough in the described master cock box body, and groove is externally connected with illuminating lamp shade, and lighting lamp power is provided by motor power.
Multifunctional motor-driven jack through above setting, dual-use function with jack and power-operated wrench, especially the setting of its master cock circuit requirement of stopping automatically after can satisfying the requirement of stopping any station position of jack in jack limit journey or reaching rated load or arrive the requirement of stopping automatically in the spacing position of jack, thereby can adapt to the various running conditions of electronic jack.
Description of drawings
Fig. 1 is a master cock circuit diagram of the present invention.
Fig. 2 is a structural representation of the present invention;
Fig. 3 is the structural representation of master cock box of the present invention.
Embodiment
Below in conjunction with accompanying drawing 1 to accompanying drawing 3 embodiments of the invention are described:
Referring to Fig. 1, the core devices of master cock circuit adopts integrated LM324 four op amp IC1, IC2, IC3, IC4, and they are used separately as amplifier, voltage comparator and Schmidt trigger.Because the input impedance height of op amp, switch pass through electric current very little, can adopt and touch telegraph key K1, touch telegraph key K2, touch the work of telegraph key K3 control circuit, power supply provides master cock circuit working constant voltage power suspply after can adopting the processing of 7805 voltage stabilizers.
Adopt circuit shown in Figure 1, energized, through R1, R2 dividing potential drop (about 1 volt), be the first relay trigger circuit comparator IC1, the second relay trigger circuit comparator IC2 end of oppisite phase provides high level, the first relay trigger circuit comparator IC1, the second relay trigger circuit comparator IC2 all is in off condition, its corresponding mouth first relay J 1 and second relay J 2 be no power all, the normally closed contact JK1 of first relay J 1 and the normally closed contact JK2 ground connection of second relay J 2 are all passed through in the two ends of electrical motor M, electrical motor M is in readiness for action, at this moment, first relay J 1 and second relay J 2 are in reset mode.
Connect telegraph key K1, the first relay trigger circuit comparator IC1 in-phase end obtains high level, is higher than about 1.4 volts of the tube voltage drop that the IC1 end of oppisite phase is made of diode D1 and D2 series connection, the first relay trigger circuit comparator IC1 conducting, the output high level triggers 1 work of first relay J; In like manner, connect telegraph key K3, the second relay trigger circuit comparator IC2 in-phase end obtains high potential, be higher than about 1.4 volts of the tube voltage drop that the IC2 end of oppisite phase is made of diode D1 and D2 series connection, the second relay trigger circuit comparator IC1 conducting, the output high level triggers 2 work of second relay J; Disconnect telegraph key K1 or telegraph key K3, because of the feedback of R3, R4 dividing potential drop is arranged, the first relay trigger circuit comparator IC1 or the second relay trigger circuit comparator IC2 in-phase end current potential still are higher than end of oppisite phase, the first relay trigger circuit comparator IC1 or the second relay trigger circuit comparator IC2 conducting, their mouth is kept high level; At this moment, first relay J 1 or second relay J 2 are connected, and electrical motor M gets electric forward or reverse.
The process that electrical motor M gets electric forward or reverse is as follows: when selectivity is connected telegraph key K1 or telegraph key K3, for ease of understanding, when for example connecting telegraph key K1,1 work of first relay J, at this moment, two diode D1, the D2 conducting of the first relay trigger circuit comparator IC1 make the end of oppisite phase current potential of the second relay trigger circuit comparator IC2 be higher than its R3, the in-phase end current potential that the R4 dividing potential drop forms, so the second relay trigger circuit comparator IC2 is in off condition; Second relay J 2 resets; In like manner, when connecting telegraph key K3,2 work of second relay J, first relay J 1 resets; Thereby realize the forward or reverse of electrical motor M, and then realize the rising or the decline of jack, and the back-out during power-operated wrench fastening screw nurse and screw function.
Referring to Fig. 1, the signal feedback comparator is made of homophase op amp IC3 and IC4 series connection, by the vdc of power supply input after sample resistance R5 step-down, insert the end in the same way of first order signal feedback amplifier IC3, the in-phase end that electric signal during the electrical motor forward or reverse also is input to the signal feedback amplifier through the trigger electrode JK1 or the JK2 of first relay J 1 or second relay J 2, thereby make the voltage on the sample resistance R5 be fluctuation status, and through the amplification of IC3 homophase, the mouth of second stage signal feedback comparator IC4 is connected with the reverse input end of the first relay trigger circuit IC1 and the second relay trigger circuit IC2; In order to improve resetting voltage; When the electric current when electrical motor M works surpassed setting value, the voltage after IC3 amplifies was lower than potential device RW setting value, thereby IC4 ends, and the signal feedback comparator is not worked; When the electric current when electrical motor M works surpasses setting value, when being the value of setting greater than potential device RW after the voltage process amplification on the R5, the IC3 conducting, thereby IC4 conducting, IC4 output high level all ends win relay trigger circuit comparator IC1 and the second relay trigger circuit comparator IC2, and first relay J 1 and second relay J 2 are all cut off the power supply and resetted.
The mode of operation of aforesaid signal feedback comparator can feed back comparator backward end current potential by conditioning signal to be realized, promptly by adjusting the resistance of RW, regulate the sensitivity of electrical motor M limit signal reactive circuit work, thereby faradic value when setting motor load indirectly, corresponding with the torque of electrical motor, reach the purpose of controlling jack output torque and power-operated wrench output torque.
Aforesaid multifunctional motor-driven jack, the wiring board of described master cock circuit are arranged in the master cock box, and telegraph key K1, telegraph key K3 and the telegraph key K2 that resets are arranged on the master cock box body.
Be provided with the illumination light trough in the aforesaid multifunctional motor-driven jack control box body, groove is externally connected with illuminating lamp shade 6, and lighting lamp power can be provided by motor power.
When the present invention made electronic jack and uses, its working process was as follows:
1, hand is by " liter " button, telegraph key K1 conducting in the master cock circuit, electrical motor M starts, slow down by reductor 2, clutch end by reductor 23 is connected with the bevel gear of the power intake 4 of screw-jack 1 again, the screw rod that is driven in reductor 2 cavitys by bevel gear rotates again, and then to drive two swivel nuts that are spirally connected on it be the rotation of binodal push rod, thereby produces the rising displacement.
2, hand is by " falling " button, telegraph key K3 conducting in the circuit, and through control circuit, the electrical motor M startup of reverse, mechanical drive principle back and forward, thereby generation decline displacement.
3, hand is pressed " stopping " button, telegraph key K2 conducting in the circuit, and circuit reset, electrical motor M stall, the push rod of jack is still in desired location.
Referring to Fig. 2, above-mentioned a kind of multifunctional motor-driven jack, form by screw-jack 1, reductor 2 and electrical motor M, electrical motor M is connected with 2 of reductors, the clutch end 3 of reductor 2 and the power intake of screw-jack 14 are connected by bevel gear, electrical motor M is electrically connected with master cock box 5, by telegraph key K1, the telegraph key K2, the telegraph key K3 that are provided with on the master cock box 5 and then control multi-functional jack work, the used power supply of electrical motor M is taken from power supply on vehicle, as automobile battery, ignition power etc.
When the present invention did the power-operated wrench use, its working process was as follows:
By on the master cock box with ascending, descending, stop corresponding telegraph key, control motor M rotating and stopping, the power of electrical motor M is through reductor 2, reach the high low speed transfer trunk of power-operated wrench through the output coupling mechanism again, cooperation by the gear cluster that is provided with in the high low speed transfer trunk, connect with the sleeve of the terminal of power-operated wrench, realize the function of tightening or unclamping screw.Its dismounting and during firm screw is the folding by the transfer gear and the output gear of gear cluster, and moment of torsion realization moment that the rotor inertia when gear cluster is worked is converted into mouth is unclamped screw and holding screw energetically.
Aforesaid multifunctional motor-driven jack, the stator of its electrical motor M and rotor adopt Rb-Fe-B material to make, to improve its magnetic flow, on the basis of the body that does not strengthen electrical motor M, strengthen the horsepower output of electrical motor M, thereby strengthened the moment of jack and the moment of torsion of power-operated wrench.
Claims (6)
1, a kind of multifunctional motor-driven jack, it includes screw-jack, reductor and electrical motor or power-operated wrench in forming, electrical motor is connected with the deceleration arbor, the clutch end of reductor and the power intake of screw-jack is connected or the sleeve of the clutch end of reductor and power-operated wrench is connected, it is characterized in that: the master cock circuit of described electrical motor is connected and composed by the first relay trigger circuit, the second relay trigger circuit, electrical motor limit signal reactive circuit.
2, multi-functional jack as claimed in claim 1, it is characterized in that: the described first relay trigger circuit, the formation of the second relay trigger circuit: by the vdc of power supply input after voltage stabilizing and dividing potential drop, insert the first relay trigger circuit comparator respectively, the backward end of the second relay trigger circuit comparator, trigger the input end power connection of telegraph key K1, trigger the in-phase end of the output termination first relay trigger circuit comparator of telegraph key K1, trigger the input end power connection of telegraph key K3, trigger the in-phase end of the output termination second relay trigger circuit comparator of telegraph key K3, the input end power connection of telegraph key K2 resets, the output termination first relay trigger circuit comparator of telegraph key K2 resets, the backward end of the second relay trigger circuit comparator, through first relay trigger circuit comparator identification electric signal and after amplifying, output voltage signal is to first relay; After the identification of the second relay trigger circuit comparator was amplified, output voltage signal was to second relay; Control first relay and the second relay work respectively, the trigger electrode of first relay and second relay is connected with the electrical motor two ends; Electrical motor limit signal reactive circuit constitutes: by the vdc of power supply input after step-down, insert the end in the same way of signal feedback comparator, electric signal during motor operation also is input to the in-phase end of signal feedback comparator through the trigger electrode of first relay, second relay, the mouth of signal feedback comparator is connected with the reverse input end of the first relay trigger circuit and the second relay trigger circuit.
3, multi-functional jack as claimed in claim 2 is characterized in that: the mode of operation of the signal feedback comparator of described electrical motor limit signal reactive circuit can feed back comparator backward end current potential by conditioning signal to be realized.
4, multi-functional jack as claimed in claim 3 is characterized in that: described signal feedback comparator is connected to form by two stage comparator.
5, multifunctional motor-driven jack as claimed in claim 1 is characterized in that: the wiring board of described master cock circuit is arranged in the master cock box, triggers telegraph key K1, triggering telegraph key K3 and the telegraph key K2 that resets and is arranged on the master cock box body.
6, multifunctional motor-driven jack as claimed in claim 5 is characterized in that: be provided with the illumination light trough in the described master cock box body, groove is externally connected with illuminating lamp shade.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610049266 CN1810623A (en) | 2006-01-25 | 2006-01-25 | Multifunctional electric jack |
| PCT/CN2006/002995 WO2007085162A1 (en) | 2006-01-25 | 2006-11-09 | A multifunctional electric jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610049266 CN1810623A (en) | 2006-01-25 | 2006-01-25 | Multifunctional electric jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1810623A true CN1810623A (en) | 2006-08-02 |
Family
ID=36843773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610049266 Pending CN1810623A (en) | 2006-01-25 | 2006-01-25 | Multifunctional electric jack |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1810623A (en) |
| WO (1) | WO2007085162A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102530768A (en) * | 2012-02-21 | 2012-07-04 | 张芝莲 | Simple electronic control method of electric jack |
| CN102530769A (en) * | 2012-02-21 | 2012-07-04 | 张芝莲 | Simple self-control circuit of electric jack |
| CN103818861A (en) * | 2014-03-12 | 2014-05-28 | 合肥彩虹蓝光科技有限公司 | Upper cover lifting system of reaction chamber cavity body |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112557003A (en) * | 2020-11-16 | 2021-03-26 | 浙江工业大学 | Automatic failure detection system and method for electric jack |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3108208A1 (en) * | 1981-03-04 | 1982-09-16 | Eckhart Dipl.-Ing. 4544 Ladbergen Dewert | Jack for motor vehicles or small utility vehicles |
| CN2145783Y (en) * | 1992-10-22 | 1993-11-10 | 陆晓东 | Electric jack |
| CN2296339Y (en) * | 1996-08-28 | 1998-11-04 | 蔡东辉 | Electric screw control jack |
| CN2468983Y (en) * | 2001-03-30 | 2002-01-02 | 广州铁工机车车辆电子有限公司 | Improved electric jack |
| KR100401418B1 (en) * | 2001-05-18 | 2003-10-22 | 제갈희 | Jack operated by electric for automobiles |
| CN2537695Y (en) * | 2002-01-08 | 2003-02-26 | 姚年生 | Electric jack for assembling and disassembling wheel hub of car |
-
2006
- 2006-01-25 CN CN 200610049266 patent/CN1810623A/en active Pending
- 2006-11-09 WO PCT/CN2006/002995 patent/WO2007085162A1/en active Application Filing
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102530768A (en) * | 2012-02-21 | 2012-07-04 | 张芝莲 | Simple electronic control method of electric jack |
| CN102530769A (en) * | 2012-02-21 | 2012-07-04 | 张芝莲 | Simple self-control circuit of electric jack |
| CN102530769B (en) * | 2012-02-21 | 2014-12-10 | 国网山西省电力公司吕梁供电公司 | Simple self-control circuit of electric jack |
| CN102530768B (en) * | 2012-02-21 | 2015-03-25 | 无为县特种电缆产业技术研究院 | Simple electronic control method of electric jack |
| CN103818861A (en) * | 2014-03-12 | 2014-05-28 | 合肥彩虹蓝光科技有限公司 | Upper cover lifting system of reaction chamber cavity body |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2007085162A1 (en) | 2007-08-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |