CN103791064A - Rotating screw driving device - Google Patents

Rotating screw driving device Download PDF

Info

Publication number
CN103791064A
CN103791064A CN201310755522.8A CN201310755522A CN103791064A CN 103791064 A CN103791064 A CN 103791064A CN 201310755522 A CN201310755522 A CN 201310755522A CN 103791064 A CN103791064 A CN 103791064A
Authority
CN
China
Prior art keywords
bolt
drive unit
screw drive
rotary screw
stopping element
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.)
Granted
Application number
CN201310755522.8A
Other languages
Chinese (zh)
Other versions
CN103791064B (en
Inventor
C·安格雷尔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of CN103791064A publication Critical patent/CN103791064A/en
Application granted granted Critical
Publication of CN103791064B publication Critical patent/CN103791064B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable
    • B60N2/067—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable by linear actuators, e.g. linear screw mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/90—Details or parts not otherwise provided for
    • B60N2/919—Positioning and locking mechanisms
    • B60N2/929—Positioning and locking mechanisms linear
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H2025/2062—Arrangements for driving the actuator
    • F16H2025/209—Arrangements for driving the actuator using worm gears

Abstract

The present invention relates to a rotating screw driving device, and particularly to a rotating screw driving device used in an adjusting device in a vehicle. The rotating screw driving device comprises a screw, a worm gear connected with the screw in a rotationally fixed manner; a housing receiving the worm gear; a stopping element mounted in the housing; a first stopping washer formed on the stopping element and used on a first side of the worm gear as an axial stop for the worm gear or the screw; a second stopping washer formed on the stopping element and used on a second side of the worm gear as an axial stop for the worm gear or the screw; wherein a first screw receiver is formed in the stop element; and wherein a second screw receiver center-aligned to the first screw is formed in the housing.

Description

Rotary screw drive unit
Technical field
The present invention relates to a kind of rotary screw drive unit, rotary screw drive unit in particular for the controlling device in vehicle.Described rotary screw drive unit is for example for regulating seat.
Background technique
Under normal circumstances, rotary screw drive unit comprises screw rod, on this screw rod, bolt and nut is installed.On one end of rotary screw, be not furnished with rotatably worm gear.Described worm gear by worm-wheel shaft and motor in rotation status.Described worm gear is contained in housing.For axially mounting worm gear and then supporting screw, each locked spacer is positioned at the both sides of worm gear in housing.In a side, rotary screw drive unit is for example fixed in Motor Vehicle by bolt and nut.On opposite side, rotary screw drive unit is fixed on housing.In the situation that bumping, spiral shell worm and wheel can clash into two locked spacers one of them.At this, housing must so stably be constructed, thereby makes can be delivered on immovable point and then be delivered on vehicle via housing from the power of locked spacer.This needs metastable shell construction.
Summary of the invention
Rotary screw drive unit according to the present invention is provided with feature claimed in claim 1, and two locked spacers are directly connected with upper level structure, for example Motor Vehicle by bolt.Described housing self is capacity not in the time bumping therefore.This can construct housing very with low costly and simple in structure.This advantage realizes by rotary screw drive unit according to the present invention, is that rotary screw drive unit comprises screw rod, is not fixed on rotatably the worm gear on described screw rod and holds the housing of described worm gear.Worm-wheel shaft is arranged in described housing itself or flange is connected on described housing, and described worm-wheel shaft makes worm gear and then makes screw rod in rotation status.Herein, worm-wheel shaft drives by motor.Stopping element is installed in housing.On described stopping element, be configured with the first locked spacer and the second locked spacer.Two locked spacers are so arranged in housing, thereby in the time bumping, described locked spacer forms respectively the axial stop of screw rod or worm gear.In stopping element, be configured with the first bolt accommodating part.In housing, be configured with and the second bolt accommodating part of the first bolt accommodating part to center.Whole bolt can extend through two bolt accommodating parts.By this bolt, rotary screw drive unit for example, with upper level structure, be connected with Motor Vehicle.By stopping element, power is directly passed to bolt from two locked spacers.Described housing forms basic bearing position.Locked spacer only in collision process for supporting.
Dependent claims shows preferred improvement project of the present invention.
Described rotary screw drive unit preferably includes bolt, and described bolt extends through two bolt accommodating parts.The first bolt accommodating part comprises that at least one has the first hole of the first diameter.Described bolt has Second bobbin diameter, and wherein the first diameter is slightly a bit larger tham Second bobbin diameter.Stopping element has gap along the radial direction of bolt thus.
The second bolt accommodating part in housing preferably has the diameter identical with bolt, thereby bolt is fixedly mounted in housing.Two locked spacers are so arranged in housing, thus normally in service at rotary screw drive unit, and described locked spacer abuts in the backstop in housing.Only occurring correspondingly compared with heavy load in the situation that, power is just directly passed to bolt from stopping element.
In addition preferably stipulate, described bolt can be installed in two bolt accommodating parts perpendicular to the longitudinal axis of screw rod.Therefore bolt is placed perpendicular to described screw rod.
Recess in the middle of the first locked spacer preferably has.Screw rod extends through this recess.
The second locked spacer preferred arrangements is on the axial end portion of screw rod.In addition preferably stipulate, on the distolateral axial end portion of screw rod, be integrated with spheroid.The backstop of accomplishing on the second locked spacer for this spheroid.
Described stopping element preferably includes two parallel struts.Described two parallel strut spaces extend to the first locked spacer apart from ground from the first bolt accommodating part.
In addition preferably stipulate, described stopping element comprises two other parallel struts, and described two other parallel struts extend to the second locked spacer from the first bolt accommodating part.
Described stopping element is preferably integrally manufactured.Alternatively also can stipulate, described stopping element is made up of jointly at least two parts.In first component, be configured with the first locked spacer.In second component, be configured with the second locked spacer.Two parts have respectively at least one first bolt accommodating part.
The in the situation that of normal work operation, the first locked spacer is supported on housing.In the time bumping, under the effect of tensile stress, directly power stream is passed to bolt by the first locked spacer and is passed to stopping element along contrary direction by bolt in other words.Power stream is passed to screw rod from the first locked spacer by worm gear, and then is passed to bolt and nut.Housing keeps not adding load as much as possible at this.Desirable situation is only in the time bumping, just to produce this direct power stream, and therefore advantageously, the first diameter of the first bolt accommodating part is greater than the outer diameter of bolt.
For pressure stress and then on the second locked spacer, can produce similar power stream when backstop worm gear.In this case, in the time of collision, between bolt and the second backstop pad, also there is directly connection, thereby can avoid the overload of housing.
Accompanying drawing explanation
Next with reference to accompanying drawing, embodiments of the invention are elaborated.Wherein:
Fig. 1 is the sectional view of rotary screw drive unit according to an embodiment of the present;
Fig. 2 is according to the detailed drawing shown in Fig. 1; And
Fig. 3 and Fig. 4 are the different views of the stopping element of rotary screw drive unit according to an embodiment of the invention.
Embodiment
Next according to Fig. 1 to Fig. 4, a kind of embodiment of rotary screw drive unit 1 is described.
Rotary screw drive unit 1 comprises screw rod 2 (also referred to as threaded stem).Movably bolt and nut (not shown) is installed on described screw rod 2.Screw rod 2 extends along longitudinal axis 3.On the axial end portion shown in Figure 1 of screw rod 2, be not furnished with rotatably worm gear 4.Described worm gear 4 is surrounded by housing 5.Worm-wheel shaft is arranged in housing 5 or flange is connected on housing 5, and described worm-wheel shaft makes worm gear 4 in rotation status.
Stopping element 6 is installed in housing 5.Described stopping element 6 be independently, the parts independently manufactured with housing 5.Described stopping element 6 is made up of jointly first component 7, second component 8 and link 9 in the illustrated embodiment.Described link 9 can be one of them overall constituent elements of two parts 7,8.In addition, comprise that the whole stopping element of two parts 7,8 and link 9 also can be fabricated to the parts of integral type.
On first component 7, be configured with the first locked spacer 11.On second component 8, be configured with the second locked spacer 12.
Fig. 2 shows the detail portion with II. mark in Fig. 1.Stopping element 6 and housing 5 design symmetrically, thus make the thin II. of portion in the corresponding way below region in realize.As shown in Figure 2, in stopping element 6, construct the first bolt accommodating part 13.Described first component 7 has two parallel struts 21.Described two parallel struts 21 extend to the first locked spacer 11 from the first bolt accommodating part 13.With it similarly, described second component 8 also comprises two other parallel struts 23.Described other parallel strut 23 extends to the second locked spacer 12 from the first bolt accommodating part 13 on compared with short distance.
In the illustrated embodiment, the first bolt accommodating part 13 comprises four through holes 14: in first component 7, be configured with two through holes 14.In second component 8, be configured with equally two through holes 14.Described through hole 14 has the first diameter 16.
In housing, be configured with the second bolt accommodating part 15.Described the second bolt accommodating part 15 comprises two opposed through holes at housing 5.Described the second bolt accommodating part 15 has Second bobbin diameter 17.
Bolt 10 is inserted in two bolt accommodating parts 13,15.Described bolt 10 is used as the link position with upper level structure, for example Motor Vehicle.Bolt 10 has Second bobbin diameter 17 equally.Bolt 10 is fixedly mounted in the second bolt accommodating part 15 thus.Due to the difference between the first diameter 16 and Second bobbin diameter 17, stopping element 6 has certain gap along the radial direction of bolt 10.
Fig. 1 illustrates, has backstop 19 in housing 5.Spring 18 between the first locked spacer 11 and housing 5 is for being bearing in worm gear 4 by described the first locked spacer 11.Normally in service, the power being applied on the first locked spacer 11 is delivered on housing 5 by backstop 19.For corresponding larger power, for example, while bumping, power is directly delivered on bolt 10 by two locked spacers 11,12.
Fig. 3 shows the plan view of stopping element 6.In addition, show two parallel struts 21 one of them, described parallel strut extends to the first locked spacer 11 from the first bolt accommodating part 30.
Fig. 4 shows respectively front and back stopping element 6, that observe along the direction of longitudinal axis 3.In the view in left side, can see, in the first locked spacer 11, be provided with recess 22.Screw rod 2 extends through described recess 22.The second locked spacer 12 is configured with square surface, and described the second locked spacer is as the backstop of the spheroid 20 on the distolateral end of screw rod 2.

Claims (10)

  1. Rotary screw drive unit (1), in particular for the rotary screw drive unit of the controlling device in vehicle, described rotary screw drive unit comprises:
    -screw rod (2);
    -the worm gear (4) that is not connected rotatably with described screw rod (2);
    -hold the housing (5) of described worm gear (4);
    -be installed to the stopping element (6) in described housing (5);
    -being configured in the first locked spacer (11) on described stopping element (6), described the first locked spacer is used as the axial stop of described worm gear (4) or described screw rod (2) on the first side of described worm gear (4);
    -being configured in the second locked spacer (12) on described stopping element (6), described the second locked spacer is used as the axial stop of described worm gear (4) or described screw rod (2) on the second side of described worm gear (4);
    -wherein in described stopping element (6), be configured with the first bolt accommodating part (13); And
    -wherein in described housing (5), be configured with and the second bolt accommodating part (15) of described the first bolt accommodating part (13) to center.
  2. 2. rotary screw drive unit according to claim 1, it is characterized in that bolt (10), described bolt is for fixing rotary screw drive unit (1), and wherein said bolt (10) is inserted in described the first bolt accommodating part and the second bolt accommodating part (13,15).
  3. 3. rotary screw drive unit according to claim 2, it is characterized in that, described the first bolt accommodating part (13) has the first diameter (16), and described bolt (10) has Second bobbin diameter (17), wherein said the first diameter (16) is greater than described Second bobbin diameter (17), thereby described stopping element (6) can be radially mobile in described bolt (10).
  4. 4. according to the rotary screw drive unit described in any one in the claims, it is characterized in that, described bolt (10) can be inserted in two bolt accommodating parts perpendicular to longitudinal axis (3) (13,15) of described screw rod (2).
  5. 5. according to the rotary screw drive unit described in any one in the claims, it is characterized in that, the recess (22) in the middle of described the first locked spacer (11) has, described screw rod (2) extends through described recess.
  6. 6. according to the rotary screw drive unit described in any one in the claims, it is characterized in that, described the second locked spacer (12) is arranged on the axial end portion of described screw rod (2).
  7. 7. according to the rotary screw drive unit described in any one in the claims, it is characterized in that, described stopping element (6) comprises two parallel struts (21), and described two parallel struts are connected described the first bolt accommodating part (13) with described the first locked spacer (11).
  8. 8. according to the rotary screw drive unit described in any one in the claims, it is characterized in that, described stopping element (6) comprises two other parallel struts, and described two other parallel struts are connected described the first bolt accommodating part (13) with described the second locked spacer (12).
  9. 9. according to the rotary screw drive unit described in any one in the claims, it is characterized in that, whole stopping element (6) is integrally constructed.
  10. 10. according to the rotary screw drive unit described in any one in claim 1 to 8, it is characterized in that, described stopping element (6) is made up of jointly at least one first component (7) and at least one second component (8), wherein in described first component (7), be configured with the first locked spacer (11), and in described second component (8), be configured with the second locked spacer (12), and wherein in two parts (7,8), construct respectively at least one first bolt accommodating part (13).
CN201310755522.8A 2012-10-26 2013-10-25 Rotary screw drive device Expired - Fee Related CN103791064B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201210219629 DE102012219629A1 (en) 2012-10-26 2012-10-26 Fulcrum shaft drive for adjustment device for adjusting seat in motor car, has torque-proof worm wheel connected with spindle, bolt retainer formed at thrust element, and bolt retainer aligned with another bolt retainer formed in housing
DE102012219629.3 2012-10-26

Publications (2)

Publication Number Publication Date
CN103791064A true CN103791064A (en) 2014-05-14
CN103791064B CN103791064B (en) 2017-10-31

Family

ID=50479631

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310755522.8A Expired - Fee Related CN103791064B (en) 2012-10-26 2013-10-25 Rotary screw drive device

Country Status (2)

Country Link
CN (1) CN103791064B (en)
DE (1) DE102012219629A1 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29513272U1 (en) * 1995-08-18 1997-01-02 Bosch Gmbh Robert Device for adjusting a seat in a motor vehicle
US6220642B1 (en) * 1998-11-26 2001-04-24 Aisin Seiki Kabushiki Kaisha Vehicular power seat slide device
CN101272929A (en) * 2005-09-28 2008-09-24 罗伯特·博世有限公司 Transmission drive unit with a support tube, and method for manufacturing such a transmission drive unit
CN101384835A (en) * 2006-02-14 2009-03-11 罗伯特.博世有限公司 Spindle drive, in particular for adjusting a moveable part in a motor vehicle, and method for producing said spindle drive
EP2090806A1 (en) * 2008-02-15 2009-08-19 Robert Bosch Gmbh Transmission-drive unit with a bearing assembly
CN102029928A (en) * 2009-10-05 2011-04-27 德鱼塔工业股份有限公司 Seat slide structure for vehicle
CN102066151A (en) * 2008-06-24 2011-05-18 白木工业株式会社 Power slide device for vehicle seat

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29513272U1 (en) * 1995-08-18 1997-01-02 Bosch Gmbh Robert Device for adjusting a seat in a motor vehicle
US6220642B1 (en) * 1998-11-26 2001-04-24 Aisin Seiki Kabushiki Kaisha Vehicular power seat slide device
CN101272929A (en) * 2005-09-28 2008-09-24 罗伯特·博世有限公司 Transmission drive unit with a support tube, and method for manufacturing such a transmission drive unit
CN101384835A (en) * 2006-02-14 2009-03-11 罗伯特.博世有限公司 Spindle drive, in particular for adjusting a moveable part in a motor vehicle, and method for producing said spindle drive
EP2090806A1 (en) * 2008-02-15 2009-08-19 Robert Bosch Gmbh Transmission-drive unit with a bearing assembly
CN102066151A (en) * 2008-06-24 2011-05-18 白木工业株式会社 Power slide device for vehicle seat
CN102029928A (en) * 2009-10-05 2011-04-27 德鱼塔工业股份有限公司 Seat slide structure for vehicle

Also Published As

Publication number Publication date
DE102012219629A1 (en) 2014-04-30
CN103791064B (en) 2017-10-31

Similar Documents

Publication Publication Date Title
JP6389935B2 (en) Electric motor or generator system
US9242542B2 (en) System for reducing engine roll
US7064464B2 (en) Electromechanical linear drive
US8931362B2 (en) Recirculating ball gear
US20070217724A1 (en) Electrical Machine and Its Bearings
JP2008273508A (en) Vehicle body side spring support column bearing device for wheel suspension system
KR101607093B1 (en) Device for mounting a linear drive
EP2874282B1 (en) Motor
BR102014000531A2 (en) electric power steering system for vehicles
US9637162B2 (en) Rack guide unit
CN102588543A (en) Supporting structure of ball screw assembly
US8240637B2 (en) Device for the linear displacement of a valve member
CN103791064A (en) Rotating screw driving device
JP3161088U (en) Rear axle
US10411557B2 (en) Non-reverse ratchet assembly for vertical shaft motors
JP5340845B2 (en) Emergency rolling bearing not affected by axial load
WO2006101297A1 (en) Wind power generator
CN104640761A (en) Device for pressing a gear rack against a pinion
US20130152727A1 (en) High Speed, Compliant, Planetary Flywheel Touchdown Bearing
CN203632428U (en) Press driving buffering protection mechanism
CN215831077U (en) Power system and transmission mechanism thereof
CN102758857A (en) Two-speed electromagnetic fan clutch
CN209739141U (en) Steering gear shell
CN108105272A (en) A kind of locking type shaft coupling
CN203201640U (en) Two-speed electromagnetic fan clutch for cooling device of automobile engine

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
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: 20171031

Termination date: 20211025