CN201473268U - Electric internal gear screw jack - Google Patents
Electric internal gear screw jack Download PDFInfo
- Publication number
- CN201473268U CN201473268U CN2009203049851U CN200920304985U CN201473268U CN 201473268 U CN201473268 U CN 201473268U CN 2009203049851 U CN2009203049851 U CN 2009203049851U CN 200920304985 U CN200920304985 U CN 200920304985U CN 201473268 U CN201473268 U CN 201473268U
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- gear
- jack
- ball screw
- rod
- inner gear
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Abstract
The utility model relates to a vehicle electric jack, in particular to an electric internal gear screw jack, which is compact in structure and convenient in use and integrates a motor, a lifting lead screw, a speed reduction mechanism and a universal self-aligning top. The technical scheme utilized to resolve technical problems includes that the electric internal gear screw jack comprises an outer casing, the motor and the speed reduction mechanism, and is characterized in that the motor is fixed on the bottom inside the outer casing, the speed reduction mechanism is mounted on the upper portion of the motor, a lifting ball screw is connected to the external of the speed reduction mechanism via threads, and the universal self-aligning top is mounted on the upper portion of the lifting ball screw. The electric internal gear screw jack has the advantages that the jack is compact and reasonable in structural design and convenient for operators to operate, and the integral volume of the jack is reduced by sufficiently utilizing the motor outer casing as a supporting part of the jack.
Description
Technical field:
The utility model relates to a kind of vehicle electric jack that is used for.
Background technology:
Existing automobile-used jack adopts fluid pressure type, Worm type or horizontally solves the work of changing tire, but there is following shortcoming in they: 1. project organization is too fat to move, operates dumb; 2. hydraulic oil leaks easily and causes environmental pollution; 3. equipment integral adopts the steel manufacturing to seem heavy.A kind of electronic jack is disclosed as Chinese utility model patent 200520100412.9, it comprises turbine, worm screw, screw rod, described screw rod passes the centre hole of turbine, screw-threaded engagement on the outside thread of screw rod and the turbine center hole wall, worm screw is provided with power input wheel, and power input wheel receives the motor outputting power, pass through belt-driving between this power output wheel and the motor, but the motor of this patent is arranged on the jack outside, makes jack structure seem more too fat to move, and is compact inadequately.Chinese in addition utility model patent 200820147974.2 discloses a kind of hydraulic jack, and it comprises base assembly, grease chamber's overcoat, movable guard, spring, axle plug assembly, movable oil sealing, piston and hydraulic oil; Adopt hydraulic oil to force the piston lifting during its work and reach the effect of lifting, but this patent structure more complicated has adopted hydraulic way, hydraulic oil leaks easily and causes environmental pollution, and is inconvenient to keep in repair.
Summary of the invention:
The utility model has mainly solved above-mentioned problems of the prior art, and a kind of compact conformation, easy to use is provided, and especially electrical motor and elevating screw, speed reduction gearing and universal aligning is come directly towards the electronic internal tooth screw mandrel jack that combines together.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of electronic internal tooth screw mandrel jack, comprise body skin, electrical motor and speed reduction gearing, it is characterized in that: described electrical motor is fixed on the body skin inner bottom part, speed reduction gearing is installed in electrical motor top, the speed reduction gearing external screw-thread is connected with the lifting ball screw, and lifting ball screw top is equipped with universal aligning top.The utility model combines electrical motor and elevating screw, speed reduction gearing and universal aligning top together, has made full use of motor casing and the speed reduction gearing strut member as jack, has reduced the overall volume of jack, makes structure compact more.
A kind of preferred version as such scheme, be that described speed reduction gearing comprises the planet tie-rod wheel of captiveing joint with motor rotation axis, the following inner gear that is arranged on electrical motor top and fixes with electrical motor, be arranged on down the ball screw inner gear on inner gear top, described planet tie-rod wheel is provided with upper planet tie-rod gear and the lower planet tie-rod gear into same parts, it is installed in planet tie-rod wheel groove by planet tie-rod gear wheel shaft, and described up galaxy gear and descending galaxy gear are meshed with ball screw inner gear and following inner gear respectively.
As a kind of preferred version of such scheme, described upper planet tie-rod gear is the same planetary wheel of the different moduluses and the different numbers of teeth with lower planet tie-rod gear.
A kind of preferred version as such scheme, the ball screw inner gear is connected on the motor rotation axis by bearing, be provided with surface bearing between described ball screw inner gear and the following inner gear, the ball screw inner gear is provided with the ball return facilities, and this ball return facilities is meshed with lifting ball screw negative thread.This ball return facilities constitutes a ball return duct by two ball backhaul pieces, two ball backhaul pieces have ball return facilities fixing screw to be fixed on the ball screw inner gear, when jack moved, ball constantly operated in the outside wire rod thread of inner gear screw mandrel by the ball return duct.
A kind of preferred version as such scheme, described universal aligning top comprises jack bar arc head and universal software top, described jack bar arc head links to each other with the lifting ball screw, this jack bar arc head top is the arc body shape of indent, and universal software top is equipped with on arc body.When universal software top contacts with the jacked object body, universal software top contacts with jacked object body maintenance face all the time, gravitational orientation is in the centre of its lifting ball screw, reach the effect of automatically regulating center of gravity, guarantee lifting ball screw smooth running, jack overall operation barycentre steadiness.Described jack bar arc head and lifting ball screw interference fit.
A kind of preferred version as such scheme, arc head central mounting at jack bar arc head has the top positioning magnetic steel, bottom, described universal software top is enclosed with the top shell of ferrous material, its top is provided with top software nail, and this universal software top attracts to cooperate by magnetic force with jack bar arc head mutually.
As a kind of preferred version of such scheme, between body skin top and lifting ball screw, be provided with dust ring, on dust ring, also be enclosed with dust boot.Solved the outside face dirt problems that the lifting ball screw is in operation, this dust boot is also decorated as the head of jack shell simultaneously in addition.
As a kind of preferred version of such scheme, described lifting ball screw lower end is provided with the lifting limiting stopper, is respectively arranged with limit switch with upper and lower side in the body skin of lifting limiting stopper the same side.
As a kind of preferred version of such scheme, described planet tie-rod wheel fixes by tightening screw and motor rotation axis, also is provided with the kinetic balance nut on tightening screw, and described tightening screw and kinetic balance nut all are arranged on planet tie-rod gear mesh face.Install as the kinetic balance parts at planetary system bar gear reciprocal position installation balance nut and planet tie-rod wheel tightening screw, solved planet tie-rod gear-bearing, planet tie-rod gear wheel shaft, the kinetic balance of planetary wheel in planetary system bar gear, avoided the phenomenon of jack vibration.
As a kind of preferred version of such scheme, body skin is provided with handle, and also is provided with the extension handle below handle, extends on the handle to be equipped with rubber coating.This extension handle is the U type, and its two ends are separately fixed at the handle, at its lower end both sides.In the actual job process, need stretch into darker position to electronic inner gear screw mandrel jack, operating personal extends handle to jack and places suitable position downwards, and one hand is caught extension handle rubber coating to be convenient to operation and is placed correct position.
The utility model has the advantages that: 1) the project organization compactness of electronic internal tooth screw mandrel jack, adopt satellite gear big speed ratio speed reduction gearing, and make full use of the strut member of motor casing as jack, reduce the overall volume of jack; 2) reducing of volume just alleviates the overall weight of jack, and outstanding complete machine is in light weight; 3) adopt electric operating, be convenient to operating personal; 4) universal top is adopted in the top of jack, makes full use of magnet to the attraction of ferrous material and the aligning effect of arc; 5) increased the extension handle of jack, be convenient to operating personal jack is placed more suitably position.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a kind of structural profile scheme drawing of the present utility model;
Fig. 2 is a kind of structural profile scheme drawing of the universal aligning of the utility model top;
Fig. 3 is a kind of perspective view of the present utility model;
Fig. 4 is a kind of structure enlarged diagram of the local A of Fig. 1;
Fig. 5 is a kind of structure enlarged diagram of the local B of Fig. 1;
Fig. 6 is a kind of structure enlarged diagram of Fig. 1 Local C;
Fig. 7 is the D-D generalized section of Fig. 4;
Fig. 8 is the E-E generalized section of Fig. 4.
The specific embodiment:
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is further described.
Embodiment:
According to shown in Figure 1, the utility model comprises body skin 1, electrical motor 26, lifting ball screw 2, speed reduction gearing and universal aligning top, motor mounting is on the body skin inner bottom part, the bottom is provided with groove outside body skin, be provided with base support iron 29 in the groove, by screw the very tight solid phase of body skin, electrical motor and base support connected, speed reduction gearing is installed on the electrical motor, the lifting ball screw is threaded in the speed reduction gearing outside, and universal aligning top is installed on the lifting ball screw.As shown in Figure 3, a side is equipped with handle 4 on body skin, and handle is provided with battery socket 27, also is connected with on the handle, at its lower end to extend handle 5, and this extension handle becomes the U type, and its two front end is hinged on the handle, is equipped with rubber coating 6 on the extension handle.
As shown in Figure 4, speed reduction gearing includes planet tie-rod wheel 21, following inner gear 7, ball screw inner gear 11, described inner gear down and ball screw inner gear are the inboard inner gear that is provided with tooth, planet tie-rod wheel is provided with upper planet tie-rod gear 18 and the lower planet tie-rod gear 20 into same parts, it is installed in the planet tie-rod by planet tie-rod gear wheel shaft 16 and takes turns 21 grooves, and this uplink and downlink galaxy bar gear is connected on the planet tie-rod gear wheel shaft by planet tie-rod gear miniature bearing 22; As shown in Figure 7 and Figure 8, upper planet tie-rod gear is the same planetary wheel of the different moduluses and the different numbers of teeth with lower planet tie-rod gear, and the number of teeth of lower planet tie-rod gear will be more than the number of teeth of upper planet tie-rod gear; Described planet tie-rod wheel is nested with in electrical motor 26 rotating shafts, and be fixed in the rotating shaft by tightening screw 9, for described planet tie-rod wheel is arranged between ball screw inner gear and the following inner gear, following inner gear is installed on the electrical motor upper body, and will descend inner gear and electrical motor to fix by tightening screw 23, the ball screw inner gear is nested with on motor rotary shaft by ball screw inner gear bearing 12, be provided with the inner gear surface bearing between ball screw inner gear and the following inner gear, described inner gear down is meshed with lower planet tie-rod gear, and the ball screw inner gear is meshed with upper planet tie-rod inner gear
The purpose that speed reduction gearing of the present utility model mainly adopts the planet circular system big speed ratio to slow down.Its deceleration principle of work is: when electrical motor 26 is made right-hand revolution with imput shaft, planet tie-rod wheel 21 and the same direction rotation of electrical motor 26 same speed, planet tie-rod gear wheel shaft is in planetary system bar wheel 21, drive planetary wheel, that is: rotate in a counter-clockwise direction again when lower planet tie-rod gear 20 and upper planet tie-rod gear 18 are around electrical motor 26 rotating shafts rotation, because planetary wheel is the engagement running with inner gear up and down, therefore, lower planet tie-rod gear 20 is a centre of gration with planet tie-rod gear wheel shaft 16, do the circumference rotation with following inner gear 7 engagements simultaneously, lower planet tie-rod gear 20 and upper planet tie-rod gear 18 are same planetary wheel, the two is the same parts gear of the different moduluses and the different numbers of teeth, be that upper planet tie-rod gear 18 is a centre of gration with planet tie-rod gear wheel shaft 16 also, do the circumference rotation with 11 engagements of ball screw inner gear simultaneously.Because the modulus of four gears is different with the number of teeth, following inner gear 7 is fixed on the electrical motor 26, upper planet tie-rod gear 18 rotates with the inverse time direction with planet tie-rod gear wheel shaft 16, and does the circumference operation with 11 engagements of ball screw inner gear again, and ball screw inner gear 11 rotates as driven shaft gear.The size of transmitting ratio, in general: the two groups of module of gear of following inner gear 7 and ball screw inner gear 11 and lower planet tie-rod gear 20 and upper planet tie-rod gear 18 and the number of teeth between the two data approaching more, the transmitting ratio between them is also big more.
As shown in Figure 5, the ball screw inner gear is provided with the ball return facilities, described ball return facilities constitutes a ball return duct 36 by two ball backhaul pieces 35, two ball backhaul pieces are fixed on the ball screw inner gear 11 by ball return facilities fixing screw 34, this ball return facilities is meshed with lifting ball screw negative thread, during work, ball constantly operates in the outside wire rod thread of inner gear screw mandrel by the ball return duct.
As shown in Figure 2, universal aligning top comprises jack bar arc head 3, universal software top 15, jack bar arc head is interference fitted on the lifting roller bearing screw mandrel, its top is an arc body that caves inward, at the arc body central mounting top positioning magnetic steel 13 is arranged, universal software top is equipped with on arc body, and its top is provided with top software nail 31, its underpart is enclosed with the top shell 14 of ferrous material, and this universal software top is inhaled flexible connection with jack bar arc head mutually by magnetic force.
In order to solve the dustproof problem of outside face that lifting ball screw 2 is in operation, as shown in Figure 6, between body skin 1 top and lifting ball screw 2, be provided with dust ring 32, on dust ring, also be enclosed with dust boot 33.
As shown in Figure 1, be provided with lifting limiting stopper 25 in lifting ball screw 2 lower ends, be respectively arranged with limit switch 19 and limit switch 28 with upper and lower side in the body skin of lifting limiting stopper the same side, this limit switch is provided with a spring pressuring plate, the dead spring compressing tablet will be cut off the electricity supply, so when the lifting ball screw moves up and down, when rising to vertex, screw mandrel lifting limiting stopper 25 is cut off the electricity supply with the collision of limit switch 19 key-boards, electrical motor 26 quits work, and that is to say that lifting ball screw 2 has stopped rising.When dropping to nadir, screw mandrel lifting limiting stopper 25 is cut off the electricity supply with the collision of limit switch 28 key-boards, and electrical motor 26 quits work, and that is to say that lifting ball screw 2 has stopped decline.
In addition, as shown in Figure 7 and Figure 8, give the dynamic poise device of the utility model planet tie-rod wheel 21, because planet tie-rod wheel 21 needs highly relative kinetic balance in the high speed revolution of electrical motor 26 S. A.s, avoid the chatter phenomena of jack, in order to solve to planet tie-rod gear miniature bearing 22, planet tie-rod gear wheel shaft 16, the kinetic balance of planetary wheel in planetary system bar wheel 21, for this reason, install as the kinetic balance parts at its reciprocal position installation metal insert kinetic balance nut 10 and planet tie-rod wheel tightening screw 9.
The principle of work of the electronic internal tooth screw mandrel of the utility model jack is: when power supply inserts electronic internal tooth screw mandrel jack battery socket 27 (power control switch can adopt reciprocal contactor or shake the control circuit switch), electrical motor 26 energized rotating operations, operation by speed reduction gearing, make ball screw inner gear 11 do at the uniform velocity rotation, ball 17 is along the out screw rod screw thread operation of ball screw inner gear 11, the screw thread that meanwhile promotes lifting ball screw 2 moves up and down, and drives the top device with this and acts on jacked object spare.Its acting point is from top to bottom: jacked object spare is put forth effort on top device, jack bar arc head 3, lifting ball screw 2, thereby pass to ball 17, ball is delivered to ball screw inner gear 11, inner gear surface bearing 8 in action again, the cross section of inner gear 7 and electrical motor 26 shell cross sections, jack shell 1 bottom, base support iron 29 is until jack bottom support object (or ground) down.
Specific embodiment described herein only is that spirit of the present invention is made casehistory.The technical personnel of the technical field of the invention can be made various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although this paper has used terms such as body skin, lifting ball screw, jack bar arc head, following inner gear, ball screw inner gear morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present invention more easily; They are construed to any additional restriction all is contrary with spirit of the present invention.
Claims (10)
1. electronic internal tooth screw mandrel jack, comprise body skin, electrical motor and speed reduction gearing, it is characterized in that: described electrical motor is fixed on body skin (1) inner bottom part, speed reduction gearing is installed in electrical motor top, the speed reduction gearing external screw-thread is connected with lifting ball screw (2), and lifting ball screw top is equipped with universal aligning top.
2. electronic internal tooth screw mandrel jack according to claim 1, it is characterized in that described speed reduction gearing comprises the planet tie-rod wheel (21) of captiveing joint with electrical motor (26) turning cylinder, the following inner gear (7) that is arranged on electrical motor top and fixes with electrical motor, be arranged on down the ball screw inner gear (11) on inner gear top, described planet tie-rod wheel (21) is provided with upper planet tie-rod gear (18) and the lower planet tie-rod gear (20) into same parts, it is installed in planet tie-rod wheel (21) groove by planet tie-rod gear wheel shaft (16), and described up galaxy gear and descending galaxy gear are meshed with ball screw inner gear and following inner gear respectively.
3. electronic internal tooth screw mandrel jack according to claim 2 is characterized in that described upper planet tie-rod gear (18) and the same planetary wheel of lower planet tie-rod gear (20) for the different moduluses and the different numbers of teeth.
4. electronic internal tooth screw mandrel jack according to claim 2, it is characterized in that the ball screw inner gear is connected on electrical motor (26) turning cylinder by bearing, be provided with inner gear surface bearing (8) between described ball screw inner gear (11) and the following inner gear (7), ball screw inner gear (11) is provided with the ball return facilities, and this ball return facilities is meshed with lifting ball screw (2) negative thread.
5. electronic internal tooth screw mandrel jack according to claim 1, it is characterized in that described universal aligning top comprises jack bar arc head (3) and universal software top (15), described jack bar arc head links to each other with the lifting ball screw, this jack bar arc head top is the arc body shape of indent, and universal software top is equipped with on arc body.
6. electronic internal tooth screw mandrel jack according to claim 5, it is characterized in that top positioning magnetic steel (13) being arranged at the arc head central mounting of jack bar arc head (3), bottom, described universal software top (15) is enclosed with the top shell (14) of ferrous material, its top is provided with top software nail (31), and magnetic force attraction activity cooperation is mutually passed through with jack bar arc head in this universal software top.
7. electronic internal tooth screw mandrel jack according to claim 1 is characterized in that being provided with dust ring (32) between body skin (1) top and lifting ball screw (2), also is enclosed with dust boot (33) on dust ring
8. electronic internal tooth screw mandrel jack according to claim 1 is characterized in that described lifting ball screw (2) lower end is provided with lifting limiting stopper (25), is respectively arranged with limit switch (19,28) with upper and lower side in the body skin of lifting limiting stopper the same side.
9. electronic internal tooth screw mandrel jack according to claim 2, it is characterized in that described planet tie-rod wheel (21) fixes by tightening screw (9) and motor rotation axis, also be provided with kinetic balance nut (10) on tightening screw, described tightening screw and kinetic balance nut all are arranged on planet tie-rod gear mesh face.
10. electronic internal tooth screw mandrel jack according to claim 1 is characterized in that body skin (1) is provided with handle (4), and also is provided with extension handle (5) below handle, extends on the handle to be equipped with rubber coating (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203049851U CN201473268U (en) | 2009-06-24 | 2009-06-24 | Electric internal gear screw jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203049851U CN201473268U (en) | 2009-06-24 | 2009-06-24 | Electric internal gear screw jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201473268U true CN201473268U (en) | 2010-05-19 |
Family
ID=42409512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203049851U Expired - Fee Related CN201473268U (en) | 2009-06-24 | 2009-06-24 | Electric internal gear screw jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201473268U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103613044A (en) * | 2013-12-17 | 2014-03-05 | 哈尔滨工业大学 | Multistage screw drive large-stroke automatic underprop tool |
| CN104192763A (en) * | 2014-08-22 | 2014-12-10 | 太原理工大学 | Automatic lifting mechanism for honing wheel electroplating |
| CN111675129A (en) * | 2020-05-29 | 2020-09-18 | 山东建筑大学 | Electric screw following jack and control method thereof |
-
2009
- 2009-06-24 CN CN2009203049851U patent/CN201473268U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103613044A (en) * | 2013-12-17 | 2014-03-05 | 哈尔滨工业大学 | Multistage screw drive large-stroke automatic underprop tool |
| CN103613044B (en) * | 2013-12-17 | 2015-10-28 | 哈尔滨工业大学 | A kind of Multistage screw drive large-stroke automatic underprop tool |
| CN104192763A (en) * | 2014-08-22 | 2014-12-10 | 太原理工大学 | Automatic lifting mechanism for honing wheel electroplating |
| CN104192763B (en) * | 2014-08-22 | 2016-05-25 | 太原理工大学 | A kind of top gem of a girdle-pendant wheel is electroplated automatic hoisting mechanism |
| CN111675129A (en) * | 2020-05-29 | 2020-09-18 | 山东建筑大学 | Electric screw following jack and control method thereof |
| CN111675129B (en) * | 2020-05-29 | 2021-08-10 | 山东建筑大学 | Electric screw following jack and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20120624 |