CN203498004U - Automatic screw jack - Google Patents
Automatic screw jack Download PDFInfo
- Publication number
- CN203498004U CN203498004U CN201320586169.0U CN201320586169U CN203498004U CN 203498004 U CN203498004 U CN 203498004U CN 201320586169 U CN201320586169 U CN 201320586169U CN 203498004 U CN203498004 U CN 203498004U
- Authority
- CN
- China
- Prior art keywords
- gear
- shift tooth
- gear shift
- tooth axle
- shaft
- 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
Links
Images
Abstract
The utility model relates to an automatic screw jack which is convenient to operate and reliable in supporting and is time-saving and labor saving and which is used for hoisting and supporting of a semitrailer. The automatic screw jack comprises a supporting foot and a supporting column. The supporting column is externally sleeved with an outer shell and internally fixed with a nut. The nut is connected with a leading screw shaft through screw threads. The upper end of the leading screw shaft is fixed with a first bevel gear. A transmission gear is arranged in one side of the outer shell and provided with a double-gear block. The double-gear block comprises a second bevel gear engaged with the first bevel gear and a driven bull gear. The upper side of the outer shell is provided with a driven gear shaft. The driven gear shaft is equipped with a first pinion engaged with the driven bull gear. A horizontal shift gear shaft is slidably fitted in the extending line of the transmission shaft in the other side of the outer shell. A second pinion is arranged on the shift gear shaft. The driven gear shaft is also equipped with a first bull gear engaged with the second pinion. The shift gear shaft is slidably provided with a high gear position and a low gear position along the axial direction. The mutually opposite shaft ends of the shift gear shaft and the transmission shaft are respectively provided with a plug slot and a plug tooth cooperatively. The shift gear shaft extends to the outside of the outer shell along the axial direction and is driven to rotate by a driving mechanism.
Description
Technical field
The utility model relates to a kind of jack, particularly a kind of auto spiral jack for lifting and support after superimposed trailer or special purpose vehicle dislodging.
Background technology
After the vehicle headstocks such as superimposed trailer are seted out, need to use jack lift ascending branch to hold, in prior art, the lifting of jack shakes with manpower the lifting that crank is realized jack, operation effort, and labour intensity is large, need to expend a large amount of physical efficiencys of operating personal, operating time is long, and in heavy duty, shakes crank while stopping and having certain bounce-back, easily injures operating personal.
Utility model content
The problem that the utility model exists for prior art, provides a kind of employings power operated auto spiral jack, realizes the automatic lifting of jack, and descending operation safety, reliably, save time, laborsaving.
The purpose of this utility model is to realize like this, a kind of auto spiral jack, comprise leg, on described leg, be vertically provided with the pillar of hollow, the outer slip fit of described pillar shell, in described pillar, be fixed with nut, described nut is threaded with vertically disposed lead screw shaft, described lead screw shaft upper end is fixed with finishing bevel gear cuter one, described shell one side level is provided with the transmission shaft inserting in shell, transmission shaft in described shell is provided with dual gear, described dual gear comprises finishing bevel gear cuter two and the driven big gear wheel with finishing bevel gear cuter one engagement, described shell upper horizontal is provided with transition axis, transition axis is provided with the miniature gears one with driven big gear wheel engagement, on the transmission shaft extended line of described shell opposite side, bearing fit is provided with the gear shift tooth axle of level, on described gear shift tooth axle, be fixed with miniature gears two, on transition axis, be fixed with the big gear wheel one with miniature gears two engagements, described gear shift tooth axle slides vertically and is provided with high-grade position and low gear position and axle head and is provided with gearshift, described transmission shaft end slip cap is located in the corresponding axle head of gear shift tooth axle, the axle head of described gear shift tooth axle is provided with gear shaping, corresponding dual gear end correspondence is provided with teeth groove, when described gear shift tooth axle slides to high-grade position, slot coordinates grafting with gear shaping, miniature gears two departs from engagement with big gear wheel one, when described gear shift tooth axle slides to low gear position, described slot is separated with gear shaping, described miniature gears two is intermeshing with big gear wheel one, described gear shift tooth axle extends axially to shell outside and drives rotation by driver train.
Auto spiral jack of the present utility model is fixedly connected with trailer by shell, actuating device be take vehicle power as power, when headstock is connected with trailer, the leg of jack is lifted away from supporting ground by screw-nut body, in retraction shell, while needing the trailer at jack supporting rear portion after headstock is seted out, first by gearshift, gear shift tooth axial drive shaft direction is advanced, pegged graft in gear shift tooth axle and dual gear end sealed, actuating device energising drives big gear wheel two to rotate and drives gear shift tooth axle to rotate, gear shift tooth axle band dynamic bevel gear two is synchronizeed with transmission shaft and by the gear motion with finishing bevel gear cuter one, is driven lead screw shaft to turn in rotation process, lead screw shaft drives the downward rapid movement of pillar by the gear motion of feed screw nut, when leg is about to contact with ground, outside gear shift tooth is axial by gearshift, be pulled to low gear position, now, the end of gear shift tooth axle and dual gear departs from, miniature gears two on gear shift tooth axle drives transition axis to rotate with big gear wheel one engagement on transmission shaft, miniature gears one on driven gear drives transmission shaft to rotate with driven big gear wheel engagement, simultaneously, finishing bevel gear cuter two drives lead screw shaft to rotate with finishing bevel gear cuter one engagement, lead screw shaft drives the downward microinching of pillar until by trailer supporting & stablizing by nut screw gear motion.While regaining leg, by actuating device drives big gear wheel two to reverse can to realize leg slowly liftoff, quick withdrawal move.In this structure, leg is unsettled to be stretched out from shell fast with pillar while not stressing, realize quick action, when leg is about to land when stressed, by gearshift, prop up at a slow speed holding capacity, to prevent the stressed impact failure of drive disk assembly of jack, and adopt vehicle power as the power of jack, greatly alleviate hand labor intensity, operation saves time, laborsaving, work efficiency is high, and safety of operation is reliable.
For ease of realizing the driving of jack, described driver train comprises the motor casing fixing with shell, on described motor casing, be installed with motor, the output shaft of described motor is provided with output gear, the axial extension of described gear shift tooth also runs through motor casing and connects by sliding support parts, and described gear shift tooth axle is provided with the big gear wheel two with output gear engagement.
For ease of realizing gear shift tooth axle high and low shift, switch accurately action, described sliding support parts comprise the support sleeve one being fixed on motor casing, described support sleeve one and gear shift tooth axle bearing fit, described gear shift tooth axle is provided with radial blind holes, in blind hole, be provided with spring and steel ball, corresponding groove one and the groove two coordinating with steel ball that be provided with on described support sleeve one, described groove one and steel ball are at once, gear shift tooth axle is in low gear position, described groove two is with steel ball at once, and gear shift tooth axle is in high-grade position.When gear shift tooth axle carries out gear switch, steel ball endwisely slips between groove one and groove two and to slide with gear shift tooth axle, and the sound that slides and have corresponding steel ball to engage with groove after putting in place, thereby realizes accurate gear shift.
For ease of being connected of gear shift tooth axle and shell, between described gear shift tooth axle and shell by support sleeve two sliding connections.
While endwisely slipping for ease of realizing gear shift tooth axle, the position of big gear wheel two is relatively fixing, described big gear wheel two is arranged on the gear shift tooth axle between support sleeve one and support sleeve two, the axle bearing fit that described big gear wheel two and gear shift tooth axle match by waist shaped hole and shape.
For ease of realizing the switching of gear shift tooth axle gear, described gear shift tooth axle axle head stretches out outside motor casing, and described gearshift comprises the radial direction through hole that gear shift tooth axle axle head arranges and the handle coordinating with radial direction through hole.
Accompanying drawing explanation
Fig. 1 is the structural representation of auto spiral jack of the present utility model.
Fig. 2 is that Fig. 1 is at the partial enlarged drawing at A place.
Fig. 3 is the part sectional view of B-B of Fig. 2.
Wherein, 1 leg; 2 pillars; 3 shells; 4 lead screw shaft; 5 finishing bevel gear cuters one; 6 finishing bevel gear cuters two; 7 transmission shafts; 8 driven big gear wheels; 9 transition axises; 10 miniature gearss one; 11 miniature gearss two; 12 big gear wheels one; 13 big gear wheels two; 14 support sleeves one; 15 motor casings; 16 gear shift tooth axles; 17 motors; 18 output gears; 19 radial direction through hole; 20 support sleeves two; 21 grooves one; 22 grooves two; 23 springs; 24 steel balls.
The specific embodiment
As Fig. 1, Fig. 2 and Figure 3 shows that auto spiral jack of the present utility model, comprise leg 1, on leg 1, be vertically provided with the pillar 2 of hollow, the outer slip fit of pillar 2 shell 3, in pillar 2, be fixed with nut, nut is threaded with vertically disposed lead screw shaft 4, lead screw shaft 4 upper ends are fixed with finishing bevel gear cuter 1, shell 3 one side levels are provided with the transmission shaft 7 inserting in shell 3, transmission shaft 7 in shell 3 is provided with dual gear, dual gear comprises finishing bevel gear cuter 26 and the driven big gear wheel 8 with finishing bevel gear cuter one 5 engagements, shell 3 upper horizontal are provided with transition axis 9, transition axis 9 is provided with the miniature gears 1 with driven big gear wheel 8 engagements, on transmission shaft 7 extended lines of shell 3 opposite sides, bearing fit is provided with the gear shift tooth axle 16 of level, on gear shift tooth axle 16, be fixed with miniature gears 2 11, on transition axis 9, be fixed with the big gear wheel 1 with miniature gears 2 11 engagements, gear shift tooth axle 16 slides vertically and is provided with high-grade position and low gear position and axle head and is provided with gearshift, transmission shaft 7 axle head slip caps are located in the corresponding axle head of gear shift tooth axle 16, the axle head of gear shift tooth axle 16 is provided with gear shaping, corresponding dual gear end correspondence is provided with teeth groove, when gear shift tooth axle 16 slides to high-grade position, slot coordinates grafting with gear shaping, miniature gears 2 11 departs from engagement with big gear wheel 1, when gear shift tooth axle 16 slides to low gear position, slot is separated with gear shaping, miniature gears 2 11 is intermeshing with big gear wheel 1, gear shift tooth axle 16 extends axially to shell 3 outsides and drives rotation by driver train.
For ease of realizing the driving of jack, driver train comprises the motor casing 15 fixing with shell 3, on motor casing 15, be installed with motor 17, the output shaft of motor 17 is provided with output gear 18, gear shift tooth axle 16 stretches out and runs through motor casing 15 and connects by sliding support parts, and gear shift tooth axle 16 is provided with the big gear wheel 2 13 with output gear 18 engagements.
For ease of realizing gear shift tooth axle 16 high and low shifts, switch accurately action, sliding support parts comprise the support sleeve 1 being fixed on motor casing 15, support sleeve 1 and gear shift tooth axle 16 bearing fits, gear shift tooth axle 16 is provided with radial blind holes, in blind hole, be provided with spring 23 and steel ball 24, corresponding groove 1 and the groove 2 22 coordinating with steel ball 24 that be provided with on support sleeve 1, groove 1 is seasonable with 24 pairs of steel balls, gear shift tooth axle 16 is in low gear position, groove 2 22 is seasonable with 24 pairs of steel balls, and gear shift tooth axle 16 is in high-grade position.When gear shift tooth axle 16 carries out gear switch, steel ball 24 endwisely slips between groove 1 and groove 2 22 and to slide with gear shift tooth axle 16, and the sound that slides and have corresponding steel ball 24 to engage with groove after putting in place, thereby realizes accurate gear shift.
For ease of being connected of gear shift tooth axle 16 and shell 3, between gear shift tooth axle 16 and shell 3 by support sleeve 2 20 sliding connections.
While endwisely slipping for ease of realizing gear shift tooth axle 16, the position of big gear wheel 2 12 is relatively fixing, big gear wheel 2 13 is arranged on the gear shift tooth axle 16 between support sleeve 1 and support sleeve 2 20, the axle bearing fit that big gear wheel 2 13 and gear shift tooth axle 16 match by waist shaped hole and shape.
For ease of realizing the switching of gear shift tooth axle 16 gears, gear shift tooth axle 16 axle heads stretch out outside motor casing 15, and gearshift comprises the radial direction through hole 19 that gear shift tooth axle 16 axle heads arrange and the handle coordinating with radial direction through hole 19.
The utility model is not limited to above-described embodiment; every on the basis of the disclosed technical scheme of the utility model; those skilled in the art is according to disclosed technology contents; do not need performing creative labour just can make some replacements and distortion to some technical characterictics wherein, these replacements and distortion are all in the scope of the utility model protection.
Claims (6)
1. an auto spiral jack, it is characterized in that, comprise leg, on described leg, be vertically provided with the pillar of hollow, the outer slip fit of described pillar shell, in described pillar, be fixed with nut, described nut is threaded with vertically disposed lead screw shaft, described lead screw shaft upper end is fixed with finishing bevel gear cuter one, described shell one side level is provided with the transmission shaft inserting in shell, transmission shaft in described shell is provided with dual gear, described dual gear comprises finishing bevel gear cuter two and the driven big gear wheel with finishing bevel gear cuter one engagement, described shell upper horizontal is provided with transition axis, transition axis is provided with the miniature gears one with driven big gear wheel engagement, on the transmission shaft extended line of described shell opposite side, bearing fit is provided with the gear shift tooth axle of level, on described gear shift tooth axle, be fixed with miniature gears two, on transition axis, be fixed with the big gear wheel one with miniature gears two engagements, described gear shift tooth axle slides vertically and is provided with high-grade position and low gear position and axle head and is provided with gearshift, described transmission shaft end slip cap is located in the corresponding axle head of gear shift tooth axle, the axle head of described gear shift tooth axle is provided with gear shaping, corresponding dual gear end correspondence is provided with teeth groove, when described gear shift tooth axle slides to high-grade position, slot coordinates grafting with gear shaping, miniature gears two departs from engagement with big gear wheel one, when described gear shift tooth axle slides to low gear position, described slot is separated with gear shaping, described miniature gears two is intermeshing with big gear wheel one, described gear shift tooth axle extends axially to shell outside and drives rotation by driver train.
2. auto spiral jack according to claim 1, it is characterized in that, described driver train comprises the motor casing fixing with shell, on described motor casing, be installed with motor, the output shaft of described motor is provided with output gear, the axial extension of described gear shift tooth also runs through motor casing and connects by sliding support parts, and described gear shift tooth axle is provided with the big gear wheel two with output gear engagement.
3. auto spiral jack according to claim 2, it is characterized in that, described sliding support parts comprise the support sleeve one being fixed on motor casing, described support sleeve one and gear shift tooth axle bearing fit, described gear shift tooth axle is provided with radial blind holes, in blind hole, be provided with spring and steel ball, corresponding groove one and the groove two coordinating with steel ball that be provided with on described support sleeve one, described groove one and steel ball are at once, gear shift tooth axle is in low gear position, described groove two is with steel ball at once, and gear shift tooth axle is in high-grade position.
4. according to the auto spiral jack described in claim 2 or 3, it is characterized in that, between described gear shift tooth axle and shell, pass through support sleeve two sliding connections.
5. auto spiral jack according to claim 4, is characterized in that, described big gear wheel two is arranged on the gear shift tooth axle between support sleeve one and support sleeve two, the axle bearing fit that described big gear wheel two and gear shift tooth axle match by waist shaped hole and shape.
6. auto spiral jack according to claim 1, is characterized in that, described gear shift tooth axle axle head stretches out outside motor casing, and described gearshift comprises the radial direction through hole that gear shift tooth axle axle head arranges and the handle coordinating with radial direction through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320586169.0U CN203498004U (en) | 2013-09-23 | 2013-09-23 | Automatic screw jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320586169.0U CN203498004U (en) | 2013-09-23 | 2013-09-23 | Automatic screw jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203498004U true CN203498004U (en) | 2014-03-26 |
Family
ID=50329002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320586169.0U Expired - Fee Related CN203498004U (en) | 2013-09-23 | 2013-09-23 | Automatic screw jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203498004U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105480283A (en) * | 2016-01-29 | 2016-04-13 | 常熟通润汽车修理设备有限公司 | Tire carrying jack |
| CN108263982A (en) * | 2018-03-14 | 2018-07-10 | 浙江耀欧汽车零部件有限公司 | A kind of both legs support type recreational vehicle electric jack stand |
-
2013
- 2013-09-23 CN CN201320586169.0U patent/CN203498004U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105480283A (en) * | 2016-01-29 | 2016-04-13 | 常熟通润汽车修理设备有限公司 | Tire carrying jack |
| CN108263982A (en) * | 2018-03-14 | 2018-07-10 | 浙江耀欧汽车零部件有限公司 | A kind of both legs support type recreational vehicle electric jack stand |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203498004U (en) | Automatic screw jack | |
| CN204457002U (en) | Framed bent formula stereo parking facility | |
| CN111845984A (en) | Traveling device of mobile robot | |
| CN104261301A (en) | Vehicle-mounted electric hoist | |
| CN203801216U (en) | Transmission and lifting device of boat tractor | |
| CN104608841A (en) | Wire tractor | |
| CN103935424B (en) | Screw-type boosted vehicle lifting self-locking device | |
| CN205135053U (en) | Novel car gyration dish device | |
| CN203127140U (en) | Large-torque ball screw electric steering machine | |
| CN204173047U (en) | A kind of automatically two supports of Electrical Bicycle | |
| CN106627835A (en) | Tractor with boosting device | |
| CN102476272A (en) | Combined type high-efficient bolt unscrewing device | |
| CN204372086U (en) | A kind of rear axle of electric automobile drive unit | |
| CN203579804U (en) | Machining and walking mechanism of large-scale woodworking machine tool | |
| CN203548820U (en) | Shifting structure | |
| CN204002539U (en) | Light brill earth anchor instrument | |
| CN111319407A (en) | Automobile wheel replacing device | |
| CN106641126A (en) | Gear speed transformation device | |
| CN202555918U (en) | Power head of automatic tapping machine | |
| CN203126523U (en) | Power driving system for forklift | |
| CN105291935A (en) | Vehicle-mounted slide rail folding type vehicle lifting mechanism | |
| CN206513770U (en) | A kind of speed change gear | |
| CN201080210Y (en) | Automobile spare tyre bracket | |
| CN203497993U (en) | Two-shaft type gearbox screw jack | |
| CN204355013U (en) | A kind of semitrailer lifting landing leg of variable-ratio |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20190923 |