CN202276239U - Electrodynamic linear drive - Google Patents
Electrodynamic linear drive Download PDFInfo
- Publication number
- CN202276239U CN202276239U CN2011204047066U CN201120404706U CN202276239U CN 202276239 U CN202276239 U CN 202276239U CN 2011204047066 U CN2011204047066 U CN 2011204047066U CN 201120404706 U CN201120404706 U CN 201120404706U CN 202276239 U CN202276239 U CN 202276239U
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- Prior art keywords
- bevel gear
- travel switch
- outer sleeve
- lifting tube
- screw
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- Expired - Fee Related
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Abstract
The utility model relates to a linear drive, particularly an electrodynamic linear drive used on a hood elevating mechanism. The utility model mainly solves the technical problems of low transmission efficiency, complex system structure and the like in the prior art which mostly uses gas spring or hydraulic transmission. The electrodynamic linear drive provided by the utility model comprises a two-way direct current motor, wherein the two-way direct current motor is connected with a driving bevel gear through a transmission gear; the driving bevel gear is connected with a driven bevel gear; the driving bevel gear and the driven bevel gear are installed in a bevel gear box; the upper end of the bevel gear box is connected with an outer sleeve; an elevating cylinder is arranged in the outer sleeve; the lower end of the elevating cylinder is connected with a ball nut; the ball nut is connected with a ball screw rod; the lower end of the ball screw rod is connected with the driven bevel gear; the upper end of the elevating cylinder is connected with a rod end knuckle bearing through a bolt; and the top ends of the outer sleeve and the elevating cylinder are respectively provided with a first travel switch and a second travel switch.
Description
Technical field
The utility model relates to a kind of Linear actuator, especially relates to the electric linear driver of a kind of use on the hood elevating mechanism.
Background technology
Existing vehicle hood elevating mechanism is usually with hydraulic pressure or air spring; Hydraulic system structure is complicated, influences service behaviour and be prone to entrained air in the fluid, cause creep, vibration and noise; Be difficult for inspection and eliminating when breaking down; Hydraulic system just can provide power when needing the main frame operate as normal, just influences the hydraulic system normal operation if main frame breaks down, and executes the task thereby can't normally accomplish.Air spring is as power assist element, to use usually manually opened with close, and self-lock ability is poor, when hood weight and size are big, very big opening and closing power is arranged, and is manually very inconvenient, also dangerous.Therefore, the electric linear driver is that hood mechanism etc. provides linear drives, drives through reciprocal linear and improves the performance that hood is opened and closed.Chinese patent number is 03279422.3 " direct current miniature electric push rod "; On the said structure basis, set up the function that prevents to cause downslides such as hood object because of system cut-off; Be mainly reflected in worm gear, worm screw has self-lock ability, its self-locking performance can play the safeguard protection effect; Increased by one group of adjustable travel control switch assembly, travel switch is to the control of property line drive stroke about utilizing; Double-screw bolt and spherical plain bearing rod end are slidingly connected, and when hood is closed, connect the influence of eliminating journey error through this, close thereby hood is meshed stably; Linear actuator output spherical plain bearing rod end with driven hood hinge and be connected, have wear-resistant, from aligning, the characteristic that lubrification is good, more convenient during installation.
The utility model content
The utility model technical problem to be solved provides the electric linear driver on a kind of hood elevating mechanism; It mainly is to solve prior art most use air spring or hydraulic drive; The technical problem of not high and system configuration complicacy of transmission efficiency etc. its objective is the technical problem of opening and closing hood etc. more easily.
The above-mentioned technical problem of the utility model mainly is able to solve through following technical proposals:
The electric linear driver of the utility model comprises the bidirectional, dc motor, and described bidirectional, dc motor is connected with driving bevel gear through transmission device; Driving bevel gear is connected with passive bevel gear; Driving bevel gear, passive bevel gear are installed in the umbrella gear box, and the umbrella gear box upper end is connected with outer sleeve, is provided with lifting tube in the outer sleeve; The lifting tube lower end is connected with ball nut; Ball nut is connected with ball screw, and the ball screw lower end is connected with passive bevel gear, and the upper end of lifting tube connects spherical plain bearing rod end through double-screw bolt; Outer sleeve, lifting tube top are equipped with first travel switch, second travel switch respectively, also are connected with down stroke sender circle, up stroke sender circle on outer sleeve bottom, the spherical plain bearing rod end respectively.Ball nut and lifting tube are fastenedly connected with left-hand thread; Ball screw rotatablely moves and makes ball nut and lifting tube be converted into linear elevating movement; The lifting tube top is equipped with double-screw bolt; Double-screw bolt and spherical plain bearing rod end are slidingly connected, and eject or spur spherical plain bearing rod end through lifting tube, finally by the spherical plain bearing rod end outputting power.Through raise-position on first travel switch control Linear actuator, second travel switch control Linear actuator decline position.
As preferably, described transmission device includes reduction box, is provided with the worm screw that is connected with the bidirectional, dc motor in the reduction box, and worm screw is connected with worm gear, and worm gear connects driving bevel gear through worm-wheel shaft.Reduction box can be connected with umbrella gear box through carriage.Worm gear, worm-drive in the worm gear reducer have self-lock ability, cut off the power supply in the Linear actuator lifting process, and hood can remain on existing position; After treating that energising recovers; Driver can continue elevating movement, and its self-locking performance can play the safeguard protection effect, and this structure also has compact conformation, can obtain big gearratio; Stable working, the characteristic that noise is little.
As preferably, described ball screw lower end is set with bearing cup, bearing pedestal, baffle ring, bearing sleeve, is provided with thrust ball bearing between bearing pedestal and the baffle ring, is provided with deep groove ball bearing between bearing sleeve and the umbrella gear box.
As preferably, the travel switch anchor ear is installed on the described outer sleeve, first travel switch is installed on the travel switch anchor ear; The lifting tube top is equipped with the travel switch seat, and second travel switch, stroke screw rod are installed on the travel switch seat, and stroke screw rod bottom connects down stroke sender circle.Adjust the path increment of Linear actuator in position on the sleeve outside through change travel switch anchor ear, through the stroke of travel switch group control Linear actuator elevating movement.
As preferably, described double-screw bolt and spherical plain bearing rod end are slidingly connected, and the lower end of spherical plain bearing rod end is equipped with spring, and spring is spacing by straight pin.When closing, hood eliminates the influence of the journey error that time-delay that travel switch and worm gear case self-locking bring produces through length of spring compressed; When opening, hood connects the power output when reducing the motor instantaneous starting through this; Drive the hood mechanism action through the spherical plain bearing rod end outputting power, assurance mechanism steadily moves.
As preferably, be provided with guide holder between described ball screw and the lifting tube, be provided with fairlead between lifting tube and the outer sleeve.Can make ball screw more smooth and easy rotatably like this, be not easy displacement.
Therefore, the electric linear driver of the utility model has simple in structure, easy for installation, reliable, and it is little to take up room, and self-locking performance is good, can improve the characteristics such as performance of hood opening and closing.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of the utility model;
Accompanying drawing 2 is contour structures sketch mapes of the utility model.
Parts among the figure; Position and numbering: bidirectional, dc motor 1; Driving bevel gear 2; Passive bevel gear 3; Umbrella gear box 4; Outer sleeve 5; Lifting tube 6; Ball nut 7; Ball screw 8; Double-screw bolt 9; Spherical plain bearing rod end 10; First travel switch 11; Second travel switch 12; Down stroke sender circle 13; Up stroke sender circle 14; Reduction box 15; Worm screw 16; Worm gear 17; Worm-wheel shaft 18; Bearing cup 19; Bearing pedestal 20; Baffle ring 21; Bearing sleeve 22; Thrust ball bearing 23; Deep groove ball bearing 24; Travel switch anchor ear 25; Travel switch seat 26; Spring 27; Straight pin 28; Guide holder 29; Fairlead 30; Stroke screw rod 31.
Embodiment
Pass through embodiment below, and combine accompanying drawing, do further bright specifically the technical scheme of the utility model.
Embodiment: the electric linear driver that this is routine like Fig. 1, Fig. 2, has a bidirectional, dc motor 1; The bidirectional, dc motor is connected with driving bevel gear 2 through transmission device, and transmission device includes reduction box 15, is provided with the worm screw 16 that is connected with the bidirectional, dc motor in the reduction box; Worm screw is connected with worm gear 17, and worm gear is connected with driving bevel gear 2 through worm-wheel shaft 18, and driving bevel gear is connected with passive bevel gear 3; Driving bevel gear, passive bevel gear are installed in the umbrella gear box 4; The umbrella gear box upper end is connected with outer sleeve 5, is provided with lifting tube 6 in the outer sleeve, and the lifting tube lower end is connected with ball nut 7 through left-hand thread; Ball nut is connected with ball screw 8, and the ball screw lower end is connected with passive bevel gear.Be provided with guide holder 29 between ball screw and the lifting tube, be provided with fairlead 30 between lifting tube and the outer sleeve.The ball screw lower end is set with bearing cup 19, bearing pedestal 20, baffle ring 21, bearing sleeve 22, is provided with thrust ball bearing 23 between bearing pedestal and the baffle ring, is provided with deep groove ball bearing 24 between bearing sleeve and the umbrella gear box.The upper end of lifting tube connects spherical plain bearing rod end 10 through double-screw bolt 9, and double-screw bolt and spherical plain bearing rod end 10 are slidingly connected, and the lower end of spherical plain bearing rod end is equipped with spring 27, and spring is spacing by straight pin 28.Travel switch anchor ear 25 is installed on the outer sleeve, first travel switch 11 is installed on the travel switch anchor ear.Lifting tube 6 tops are equipped with travel switch seat 26, and second travel switch 12, stroke screw rod 31 are installed on the travel switch seat, and stroke screw rod bottom connects down stroke sender circle 13.Also be connected with up stroke sender circle 14 on the spherical plain bearing rod end.
During use, the spherical plain bearing rod end 10 of output affacts and is driven on the hood, and bidirectional, dc motor 1 is through driving reduction box 15 transmissions; Worm-wheel shaft 18 outputs make ball screw 8 rotations through the transmission of umbrella gear box 4, and ball nut 7 is moving linearly on ball screw 8; Order about the object moving linearly through lifting tube 6 and spherical plain bearing rod end 10, the rotating through control bidirectional, dc motor is driven object can do linear movement; Through adjustment to travel switch anchor ear 25 positions; The lifting travel amount can freely be set, be slidingly connected through double-screw bolt 9 and spherical plain bearing rod end and eliminate the influence of journey error, guarantee mechanism stable property.
When bidirectional, dc motor 1 is just changeing, drive ball screw 8 and turn clockwise, ball nut 7 is the straight line ascending motion on ball screw; Lifting tube 6 is done ascending motion simultaneously; Drive by the spherical plain bearing rod end of output 10 that hoods are linear to rise, in the uphill process during bidirectional, dc motor sudden power, through the self-lock ability of worm screws 16, worm gear 17 in the reduction box 15; Object can remain on existing position, treats can continue to do elevating movement after energising recovers.When rising to the setting stroke, by first travel switch, 11 control path increments, this moment first, travel switch 11 broke off, Linear actuator rising completion.
During 1 counter-rotating of bidirectional, dc motor, drive ball screw 8 and be rotated counterclockwise, ball nut 7 is the straight line descending motion on ball screw; Lifting tube 6 is done descending motion simultaneously; The pulling hoods are linear descends by the spherical plain bearing rod end of output 10, in the decline process during bidirectional, dc motor sudden power, through the self-lock ability of worm screws 16, worm gear 17 in the reduction box 15; Object can remain on the present position, treats can continue to do elevating movement after energising recovers.When dropping to the setting stroke, by second travel switch, 12 control path increments, this moment second, travel switch 12 broke off, Linear actuator decline completion.
The above is merely the specific embodiment of the utility model; But the architectural feature of the utility model is not limited thereto; Any those skilled in the art is in the field of the utility model, and variation of being done or modification all are encompassed among the claim of the utility model.
Claims (6)
1. electric linear driver; Comprise bidirectional, dc motor (1); It is characterized in that described bidirectional, dc motor is connected with driving bevel gear (2) through transmission device, driving bevel gear is connected with passive bevel gear (3), and driving bevel gear, passive bevel gear are installed in the umbrella gear box (4); The umbrella gear box upper end is connected with outer sleeve (5); Be provided with lifting tube (6) in the outer sleeve, the lifting tube lower end is connected with ball nut (7), and ball nut is connected with ball screw (8); The ball screw lower end is connected with passive bevel gear; The upper end of lifting tube connects spherical plain bearing rod end (10) through double-screw bolt (9), and outer sleeve, lifting tube top are equipped with first travel switch (11), second travel switch (12) respectively, also are connected with down stroke sender circle (13), up stroke sender circle (14) on outer sleeve bottom, the spherical plain bearing rod end respectively.
2. electric linear driver according to claim 1; It is characterized in that described transmission device includes reduction box (15); Be provided with the worm screw (16) that is connected with bidirectional, dc motor (1) in the reduction box; Worm screw is connected with worm gear (17), and worm gear connects driving bevel gear (2) through worm-wheel shaft (18).
3. electric linear driver according to claim 1 and 2; It is characterized in that described ball screw (8) lower end is set with bearing cup (19), bearing pedestal (20), baffle ring (21), bearing sleeve (22); Be provided with thrust ball bearing (23) between bearing pedestal and the baffle ring, be provided with deep groove ball bearing (24) between bearing sleeve and the umbrella gear box (4).
4. electric linear driver according to claim 1 and 2 is characterized in that travel switch anchor ear (25) is installed on the described outer sleeve (5), and first travel switch (11) is installed on the travel switch anchor ear; Lifting tube (6) top is equipped with travel switch seat (26), and second travel switch (12), stroke screw rod (31) are installed on the travel switch seat, and stroke screw rod bottom connects down stroke sender circle (13).
5. electric linear driver according to claim 1 and 2 is characterized in that described double-screw bolt (9) and spherical plain bearing rod end (10) are slidingly connected, and the lower end of spherical plain bearing rod end is equipped with spring (27), and spring is spacing by straight pin (28).
6. electric linear driver according to claim 1 and 2 is characterized in that being provided with guide holder (29) between described ball screw (8) and the lifting tube (6), is provided with fairlead (30) between lifting tube and the outer sleeve (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204047066U CN202276239U (en) | 2011-10-22 | 2011-10-22 | Electrodynamic linear drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204047066U CN202276239U (en) | 2011-10-22 | 2011-10-22 | Electrodynamic linear drive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202276239U true CN202276239U (en) | 2012-06-13 |
Family
ID=46196576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204047066U Expired - Fee Related CN202276239U (en) | 2011-10-22 | 2011-10-22 | Electrodynamic linear drive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202276239U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102832740A (en) * | 2012-09-03 | 2012-12-19 | 海信容声(广东)冰箱有限公司 | Motor device for stirring and crushing ice in refrigerator |
| CN106394070A (en) * | 2015-08-03 | 2017-02-15 | 富泰华工业（深圳）有限公司 | Telescopic device and pen with same |
| CN106584449A (en) * | 2017-01-23 | 2017-04-26 | 哈尔滨工业大学 | Serial-parallel elastically driven linear movement unit |
| CN109335026A (en) * | 2018-09-20 | 2019-02-15 | 兰州空间技术物理研究所 | A kind of spacecraft thrust vectoring regulating mechanism |
| WO2020029331A1 (en) * | 2018-08-07 | 2020-02-13 | 深圳市一么么科技有限公司 | Adjustable linear driver for electric furniture |
| WO2020077571A1 (en) * | 2018-10-17 | 2020-04-23 | 炼马机电（东莞）有限公司 | Actuator |
-
2011
- 2011-10-22 CN CN2011204047066U patent/CN202276239U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102832740A (en) * | 2012-09-03 | 2012-12-19 | 海信容声(广东)冰箱有限公司 | Motor device for stirring and crushing ice in refrigerator |
| CN106394070A (en) * | 2015-08-03 | 2017-02-15 | 富泰华工业（深圳）有限公司 | Telescopic device and pen with same |
| CN106584449A (en) * | 2017-01-23 | 2017-04-26 | 哈尔滨工业大学 | Serial-parallel elastically driven linear movement unit |
| CN106584449B (en) * | 2017-01-23 | 2019-01-08 | 哈尔滨工业大学 | A kind of linear motion unit of series-parallel flexible drive |
| WO2020029331A1 (en) * | 2018-08-07 | 2020-02-13 | 深圳市一么么科技有限公司 | Adjustable linear driver for electric furniture |
| CN109335026A (en) * | 2018-09-20 | 2019-02-15 | 兰州空间技术物理研究所 | A kind of spacecraft thrust vectoring regulating mechanism |
| CN109335026B (en) * | 2018-09-20 | 2022-01-21 | 兰州空间技术物理研究所 | Thrust vector adjusting mechanism for spacecraft |
| WO2020077571A1 (en) * | 2018-10-17 | 2020-04-23 | 炼马机电（东莞）有限公司 | Actuator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120613 Termination date: 20151022 |
|
| EXPY | Termination of patent right or utility model |