Gear component, planetary gear, actuator, use of actuator and method for producing actuator

By forming the gear element as a stamping member and stamping it out of the metal plate, the problem of easy breakage of the sintered metal gear element is solved, and the lightweight and efficient manufacturing of the gear element is achieved, reducing cost and energy consumption.

CN119467647APending Publication Date: 2025-02-18OECHXERROX GMBH
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Patent Information

Application Number
CN202411084294.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2023-08-08
Filing Date
2024-08-08
Publication Date
2025-02-18

AI Technical Summary

Technical Problem

In the prior art, although gear elements made of sintered metal can transmit higher torque, they are prone to spontaneous breaking, resulting in increased material thickness, space requirements and actuator weight, and at the same time, high manufacturing costs and high energy consumption. .

Method used

High precision manufacturing and lightweight design of the gear element are achieved by forming at least one gear element as a stamping member and stamping the gear element out of the metal plate using a three-dimensional action press.

Benefits of technology

The lightweight of gear elements and the reduction of space requirements are achieved, while reducing manufacturing costs and improving the torque resistance of gear elements.

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Abstract

The invention relates to a gear part (8, 9, 10) for a planetary gear (2) and / or a transmission (25) of an actuator (1) having at least one gear element (3, 4, 5, 6, 7). The at least one gear element (3, 4, 5, 6, 7) is formed as a stamped part, in particular a fine stamped part, a fine cut part and / or a fine stamped part. The invention further relates to a planetary gear (2), to an actuator (1), to the use of a gear element (3, 4, 5, 6, 7) designed as a stamped part, and to a method for producing an actuator (1).
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Description

Technical Field

[0001] The invention relates to a planetary gear transmission and / or a transmission for an actuator. The invention also relates to a planetary gear, an actuator, the use of a gear element designed as a stamped part, and a method for producing an actuator. Background Art

[0002] EP 1855927B1 discloses a multi-stage planetary gear transmission for an actuator. The gear components of the planetary gear transmission disclosed herein are preferably made of fiber-reinforced plastic and / or sintered metal. In particular, the planetary gear on the last planet carrier is made of sintered metal because it reaches the highest torque. The disadvantage of gear elements made of sintered metal is that, although they can transmit higher torques than gear elements made of plastic, they tend to have spontaneous fracture behavior. Therefore, in the case of gear elements made of sintered metal, the material thickness is usually increased, thereby increasing the space requirement and the weight of the actuator. In addition, gear elements made of sintered metal also have the disadvantage that they usually have to be post-processed in a costly and / or energy-intensive manner. In this way, gear elements made of sintered metal are energy-intensive, expensive and time-consuming. Summary of the invention

[0003] The object of the present invention is to eliminate the disadvantages known from the prior art.

[0004] The above-mentioned inventive objects can be achieved by a gear component, a planetary gear transmission, an actuator, applications thereof and a method for manufacturing an actuator having the technical features of the independent claims.

[0005] The invention proposes a planetary gear and / or gear component (gear component) for an actuator having at least one gear element. The actuator can be used, for example, as a vehicle component. For example, the actuator can be used for an electric parking brake or a parking brake. The gear element is, for example, a ring gear, a planetary gear, a sun gear, a spur gear and / or a planet carrier. By means of the transmission, the rotational movement of the electric machine can be transmitted and / or transmitted to the planetary gear mechanism. The planetary gear mechanism ensures the further transmission of the rotational movement so that vehicle components, in particular the electric parking brake, can be adjusted.

[0006] According to the invention, at least one gear element is formed as a stamped part. In this case, the at least one gear element is stamped out of a metal sheet by means of a press, in particular by means of a three-dimensionally acting press. Since the at least one gear element is stamped out of a metal sheet, it has the material properties of the metal sheet, in particular uniform material properties. Stamped gear elements therefore have the advantage that they are as cheap as possible to manufacture and / or have a high weight reduction potential. Stamped gear elements with a low weight and / or a small space requirement are therefore very suitable for transmitting high torques.

[0007] Preferably, the gear element is formed as a fine stamped part, a fine cut part and / or a precision punched part. Fine blanking or fine cutting is a chipless separation method that allows the production of high-precision workpieces, in the present invention, gear elements. Additionally or alternatively, the gear element can be deformed at the same time. In contrast to "normal" stamping, during stamping and / or forming, at least one gear element is fixed to the cross-sectional profile, in particular at least one outer contour and / or inner contour, preferably with the aid of a ring tooth (Ringzacke) during fine stamping, fine cutting and / or fine stamping. After fixing, the punch cuts at least one gear element from the metal. Thereby, at least one gear element with at least one very precise cutting edge can be produced or stamped out, in particular on the outer contour and / or inner contour. Additionally or alternatively, at least one fine stamped, fine cut and / or fine stamped gear element has a high cylindrical cutting portion along the thickness of the metal sheet. In the case of the gear element of the present invention, it is advantageous to realize these precise cutting or cutting edges, preferably in the area of ​​at least one milled tooth or toothed tooth.

[0008] It is advantageous if at least one gear element comprises at least one stamped outer contour and / or inner contour, wherein at least one outer contour and / or inner contour preferably comprises at least one tooth and / or at least one, in particular tooth-shaped and / or cam-shaped, fixing portion. By means of the at least one tooth and / or at least one fixing portion, torque can be transmitted between several gear elements and / or other elements of the actuator. In particular, by means of the at least one fixing portion, the at least one gear element can be additionally or alternatively arranged, in particular spatially fixed. It is thus conceivable that the at least one gear element is mounted on the housing of the actuator in a spatially fixed and / or displacement-fixed and / or releasable manner along the axis of rotation by means of the at least one fixing portion.

[0009] Furthermore, it is also advantageous if at least one gear wheel element comprises a base body, wherein the at least one tooth and / or the at least one fastening part is preferably at least partially arranged on the base body.

[0010] It is also advantageous that the at least one gear element is formed as an integral and / or continuous stamped part. By stamping and / or forming, it is also possible to achieve complex geometries for the at least one gear element when the stamped part is formed as one piece.

[0011] It is also advantageous if the at least one gear wheel element comprises at least one contact portion and / or at least one bearing portion, wherein the at least one contact portion and / or the at least one bearing portion preferably adjoins the base body.

[0012] This also has the advantage that at least one contact portion and / or at least one bearing portion is at least partially spaced apart and / or protrudes (isolated) from the base body along the axis of rotation of the gear component. The at least one contact portion is preferably formed as an abutment surface and is spaced apart from the base body along the axis of rotation. The at least one bearing portion preferably protrudes from the base body, in particular by being formed.

[0013] The at least one gear element is preferably a fine stamping, fine cutting and / or precision stamping part and is stamped and / or formed from at least one metal sheet. During the forming process, at least one contact portion and / or at least one bearing portion can be formed. In this way, at least one gear element having a base body and at least one contact portion and / or bearing portion spaced apart from and / or protruding from the base body can be manufactured from at least one metal sheet. During the fine stamping, fine cutting and / or precision cutting, at least one outer contour and / or inner contour can be stamped and / or cut before, after and / or simultaneously.

[0014] It is also advantageous if the gear component comprises at least two gear elements, wherein the at least two gear elements abut against each other, are supported relative to each other and / or are connected to each other, in particular against displacement, in particular via at least one contact portion and / or at least one bearing portion, during the intended use of the gear component.

[0015] Furthermore, it is advantageous if, in the intended use of the gear component, at least one tooth and / or at least one fixed portion of at least two gear elements arranged opposite each other and / or connected to each other are at least partially spaced apart from each other and / or formed corresponding to each other along the axis of rotation.

[0016] It is also advantageous if the gear elements are ring gears, preferably at least two gear elements designed as ring gears form a gear part designed as a ring gear unit.

[0017] It is also advantageous if at least two gear elements configured as ring gears are connected to one another via at least one bearing pin, wherein at least one gear element configured as a ring gear preferably comprises in the region of at least one contact portion at least one receiving cavity for at least one bearing pin, which cavity in particular has at least one receiving opening.

[0018] It is also advantageous if at least one gear element configured as a ring gear comprises a fixing portion on the outer contour, in particular a cam-shaped fixing portion, and / or a toothing on the inner contour.

[0019] Furthermore, it is advantageous if at least two gear elements configured as ring gears abut one another at corresponding contact portions and / or are at least partially spaced apart from one another along the axis of rotation in the region of at least one tooth and / or at least one fixing portion, in particular by approximately at least one sheet metal thickness of the gear elements.

[0020] It is also advantageous if the gear element is a planet carrier and / or a planet wheel, wherein at least one planet wheel and at least one planet carrier preferably form at least one gear part as a planetary unit.

[0021] Likewise, it is advantageous if at least one gear element designed as a planetary gear is rotatably mounted and / or accommodated on at least one gear element designed as a planet carrier, in particular by means of at least one bearing part.

[0022] It is advantageous if at least one gear wheel element designed as a planet carrier comprises, on at least one inner contour, a fastening section, in particular a toothed and / or cam-shaped fastening section, and / or a plurality of stamped inner contours.

[0023] Furthermore, it is advantageous if the gear elements are sun gears and / or spur gears, preferably at least two gear elements designed as sun gears and / or spur gears form a gear part designed as a double gear.

[0024] It is also advantageous if at least one gear element designed as a planetary gear, sun gear and / or spur gear comprises teeth on at least one outer contour.

[0025] Furthermore, the present invention proposes a planetary gear transmission for an actuator having at least one gear component. According to the present invention, the gear component has the design features described above, wherein these design features may exist individually or in any desired combination.

[0026] It is advantageous if the planetary gear is formed as a multi-stage, in particular a two-stage planetary gear, wherein the multi-stage, in particular a two-stage planetary gear comprises at least two planetary units, at least two ring gears and / or at least one ring gear unit, in particular having at least two teeth that are spaced apart from each other and / or correspond to each other.

[0027] Furthermore, it is also advantageous that in the intended use of the actuator, two teeth arranged on the inner contour of the respective ring gear and / or the ring gear unit mesh with two gear elements of different gear stages of the planetary gear transmission, which are designed as planetary gears and are spaced apart along the axis of rotation.

[0028] It is advantageous if at least one gear element configured as a planetary carrier has at least one bearing part, in particular configured as a planetary shaft for at least one planetary wheel, wherein the at least one gear element configured as a planetary wheel is preferably received and / or mounted in a particularly rotatable manner in the intended use of the actuator by means of at least one bearing part of the planetary carrier.

[0029] It is also advantageous if a multi-stage, in particular a two-stage planetary gear comprises at least two planet carriers, each planet carrier having at least one bearing section, the respective bearing sections of the at least two planet carriers preferably comprising the same axial diameter and / or axial distance to the axis of rotation.

[0030] Additionally or alternatively, the multi-stage, in particular two-stage planetary gear transmission has at least two sun gears and / or two planet gears. The outer contours and / or inner contours of at least two sun gears and / or at least two planet gears are preferably identical. In this way, the manufacturing costs can be further reduced, because in order to manufacture the same parts, only one tool, in particular a press with a ring gear and / or a punch, needs to be manufactured.

[0031] Furthermore, the invention proposes an actuator, in particular for a vehicle component, for example for an electronic parking brake, which has a planetary gear transmission and / or a transmission. According to the invention, the planetary gear transmission, the transmission and / or at least one gear component have the technical features described above, which can exist alone or in any desired combination. The gear component can be a component of a planetary gear transmission and / or a transmission.

[0032] In addition, the present invention also proposes a gear element formed by using stamped parts, in particular fine stamped parts, fine cut parts and / or precision stamped parts in a planetary gear transmission, a transmission and / or an actuator. According to the present invention, at least one gear element, a planetary gear transmission, a transmission and / or at least one gear part has the technical features described above, which can exist alone or in any desired combination.

[0033] Furthermore, the invention further proposes a method for manufacturing an actuator, in particular an actuator for a vehicle component. In the method, at least one gear element of the actuator is stamped from a metal sheet. Preferably, at least one gear element, a planetary gear transmission, a transmission and / or at least one gear component is according to the technical features described above and / or the method has at least one method technical feature described above, which can exist alone or in any desired combination.

[0034] At least one gear element is preferably at least one ring gear (gear ring), planetary gear, sun gear, spur gear and / or planet carrier. The stamping is preferably carried out in the form of fine stamping, fine cutting and / or precision stamping, for example by means of a three-dimensional action press.

[0035] It is advantageous to subject at least one gear element to a heat treatment, preferably after stamping and / or forming.

[0036] Furthermore, it is advantageous if at least one outer contour and / or at least one inner contour of at least one gear element is formed from a metal sheet during a stamping process, wherein during the stamping process at least one tooth and / or at least one, in particular tooth-shaped and / or cam-shaped, fixing part is preferably formed in the region of the outer contour and / or inner contour.

[0037] It is also advantageous if, before, during and / or after stamping, in particular during fine stamping, fine cutting and / or precision stamping, at least one metal sheet is deformed at least partially along the axis of rotation, for example with the aid of a three-dimensionally acting press, in order to form at least one contact portion and / or at least one bearing portion of at least one gear element.

[0038] Furthermore, it is advantageous if at least two gear elements bear against, support and / or are connected to one another, in particular via at least one contact portion and / or at least one bearing portion, so that at least one gear part is formed by at least two gear elements.

[0039] Furthermore, it is advantageous if at least two gear elements configured as ring gears contact one another via at least one contact portion, preferably via at least two spaced-apart contact portions, thereby forming a gear component configured as a ring gear unit.

[0040] It is also advantageous if at least one gear element configured as a planetary gear is received and / or supported, in particular rotatably or rotatably received and / or supported, by means of at least one bearing section of a gear element configured as a planet carrier, thereby forming a gear component configured as a planetary unit.

[0041] Furthermore, it is advantageous if at least two gear elements designed as spur gears and / or sun gears are in contact with one another and / or are positioned concentrically relative to one another, thereby forming a gear component designed as a double gear.

[0042] It is advantageous if at least one gear element, at least one planetary unit and / or at least one gear wheel is inserted as a double gear wheel into at least one ring gear and / or at least one annular gear unit, thereby preferably forming a planetary gear and / or a transmission.

[0043] Furthermore, it is advantageous if at least one gear element of at least one gear component, at least one planetary gear, at least one transmission, at least one electric motor for an actuator and / or at least one fastening element for an electric motor are arranged and / or mounted in at least one housing, in particular in a housing lower part of the housing.

[0044] Further advantages of the present invention are described in more detail below with reference to exemplary embodiments and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 is a schematic cross-sectional view of an actuator according to an exemplary embodiment of the present invention;

[0046] Figure 2 is a schematic perspective view of a ring gear unit according to an exemplary embodiment of the present invention; and

[0047] Figure 3 is a schematic perspective view of a planetary unit according to an exemplary embodiment of the present invention. DETAILED DESCRIPTION

[0048] In the following description of the figures, the same reference numerals are used for identical and / or at least comparable technical features in the various figures. Individual technical features, their design and / or mode of operation are generally only explained in detail the first time they are mentioned. If individual technical features are not explained in further detail, their design and / or mode of operation correspond to the design and mode of operation of the already described technical features with the same effect or the same name.

[0049] Figure 1 A schematic cross-sectional view of an actuator 1 according to an exemplary embodiment of the invention is shown. In the exemplary embodiment shown, the actuator 1 comprises a planetary gear 2, which is formed, for example, as a multi-stage, in particular a two-stage planetary gear 2. The planetary gear 2 is driven or rotated by an electric motor. The rotational movement of the electric motor 22 is transmitted and / or transferred to the planetary gear 2 by means of at least one spur gear 7 configured as a gear element 3, 4, 5, 6, 7. In the exemplary embodiment shown, the actuator 1 has a transmission 25 formed by a plurality of spur gears 7.

[0050] The actuator 1 has a plurality of gear elements 3, 4, 5, 6, 7, wherein at least one of the gear elements 3, 4, 5, 6, 7, in particular several of the gear elements 3, 4, 5, 6, 7, comprises teeth 13. By means of the teeth 13, the plurality of gear elements 3, 4, 5, 6, 7 mesh with one another. For the sake of clarity, in the exemplary embodiment shown, the reference numerals for the teeth 13 are only used for the spur gear 7 on the output shaft of the motor 22. Figure 1 As shown, other elements of the gear elements 3 , 4 , 5 , 6 , 7 may also have teeth 13 .

[0051] In the exemplary embodiment shown, a plurality of gear elements 3, 4, 5, 6, 7 are shown. Thus, at least one ring gear (gear ring) 3, at least one planet carrier 4, at least one planet gear 5, at least one sun gear 6 and / or at least one spur gear 7 are shown as gear elements 3, 4, 5, 6, 7. Thus, Figure 1 The exemplary embodiment of FIG. 2 shows several spur gears 7 forming a transmission 25. Figure 1 In the exemplary embodiment of the present invention, a planetary gear transmission 2 is shown. The planetary gear transmission 2 includes at least one of the spur gears 7, at least one ring gear 3, at least one planet carrier 4, at least one planet gear 5 and / or at least one sun gear 6. Since the planetary gear transmission 2 is formed as a multi-stage, in particular a two-stage planetary gear transmission 2, it includes at least two planet carriers 4, at least two planet gears 5 and at least two sun gears 6. In addition, in the exemplary embodiment shown, the planetary gear transmission 2 includes two ring gears 3.

[0052] At least one of the gear elements 3, 4, 5, 6, 7 is formed as a stamped part, in particular a fine stamped part, a fine cut part and / or a precision stamped part. The gear elements 3, 4, 5, 6, 7 formed as stamped parts are stamped from a metal sheet. Stamping is usually done by fine stamping, fine cutting and / or precision stamping. For example, a three-dimensional action press is used to achieve this purpose. As a result, a gear element 3, 4, 5, 6, 7 that is as precise and / or torque-resistant as possible can be obtained.

[0053] Furthermore, the gear elements 3, 4, 5, 6, 7 formed as stamped parts can be deformed after stamping. In particular, by forming, at least one bearing portion 16 and / or at least one bearing portion 17 can be formed and / or shaped on at least one gear element 3, 4, 5, 6, 7. In the exemplary embodiment shown, at least one ring gear 3 comprises at least one contact portion 16. By means of at least one contact portion 16, the two ring gears 3 shown can be connected to each other. In this case, two ring gears 3 one after another form gear parts 8, 9, 10 configured as a ring gear unit 8.

[0054] By means of at least one bearing pin 19, the two ring gears 3 can be connected to each other and / or fixed relative to each other. In this case, the at least one bearing pin 19 is accommodated in at least one receiving cavity 20 of the at least one ring gear 3. In order to connect the two ring gears 3 by means of at least one bearing pin 19, both ring gears 3 have a receiving cavity 20. The receiving cavity 20 can include, for example, at least one receiving opening. At least one bearing pin 19 can simultaneously support at least one of the spur gears 7 of the transmission 25.

[0055] Additionally or alternatively, a fixing element 23 for the electric motor 22 can be received by means of at least one bearing pin 19. By means of the fixing element 23, the electric motor 22 is fixed to the transmission 25 and / or the planetary gear 2. In the exemplary embodiment shown, the actuator 1 has a plurality of bearing pins 19, the fixing element 23 being mounted without play on at least one of the bearing pins 19 and / or with play on another of the bearing pins 19. As a result, the distance between the individual spur gears 7 can be kept constant. In this way, the wear on the spur gears 7 can be reduced.

[0056] Furthermore, in the exemplary embodiment shown, the at least one planet carrier 4 comprises at least one bearing section 17. By means of the at least one bearing section 17, at least one planet gear 5, preferably several, for example three or five planet gears 5, can be received and / or rotatably mounted by the at least one planet carrier 4. The at least one planet carrier 4 together with the at least one planet gear 5 forms a gear element 8, 9, 10 configured as a planetary unit 9.

[0057] Additionally or alternatively, the transmission 25 and / or the planetary gear 2 has at least one gear element 8, 9, 10 configured as a double gear 10. The at least one double gear 10 includes at least one of the spur gears 7 and / or at least one of the sun gears 6. In this case, the at least one spur gear 7 and / or the at least one sun gear 6 abut against each other and are connected to each other. Thus, by means of the double gear 10, the transmission of the rotational movement from one gear element 3, 4, 5, 6, 7 to the gear element 3, 4, 5, 6, 7 adjacent thereto can be ensured.

[0058] In the exemplary embodiment shown, the ring gear 3 and / or the ring gear unit 8 of the planetary gear 2 are accommodated in a housing 26 of the actuator 1 in a non-movable manner. To this end, the ring gear 3 and / or the ring gear unit 8 comprise at least one fixed portion 14. The fixed portion 14 is designed to correspond to the support portion 24 of the housing 26 so that they abut one another in the intended use of the planetary gear 2 and / or the actuating drive 1. If a rotational movement is generated by means of the electric motor 22, at least one spur gear 7, at least one sun gear 6 and / or at least one planetary unit 9 rotate about the axis of rotation 18 of the planetary gear 2. Furthermore, the planet wheels 5 rotate about the respective planet axes 21. Since the bearing portion 17 has only a limited height, the axial diameter of the bearing portion 17 and / or the axial distances of the planet axes 21 from the axis of rotation 18 of different planet carriers 4 can be identical or equal, e.g. Figure 1 As shown in an exemplary embodiment of the present invention.

[0059] As described above, in the exemplary embodiment shown, the planetary gear transmission 2 is formed as a multi-stage, in particular a two-stage planetary gear transmission 2. Therefore, the planetary gear transmission 2 includes at least two planetary units 9, at least two ring gears 3 and / or at least one ring gear unit 8. In the intended use of the actuator 1, the teeth 13 of the two planetary wheels 5 spaced apart from each other along the rotation axis 18 mesh with the teeth 13 of the corresponding ring gear 3 and / or the ring gear unit 8. Since the teeth 13 of the ring gear 3 and / or the ring gear unit 8 are spaced apart from each other, or the distance between the teeth 13 is formed as a cavity, a weight reduction of the planetary gear transmission 2 can be achieved.

[0060] Figure 2 1 shows a schematic perspective view of a ring gear unit 8 according to an exemplary embodiment. Figure 1In the exemplary embodiment of the ring gear unit 8, the ring gear unit 8 is composed of two ring gears 3. In the present invention, each ring gear 3 can be regarded as a gear element 3, 4, 5, 6, 7, and / or the ring gear unit 8 can be regarded as a gear part 8, 9, 10. Therefore, the gear elements 3, 4, 5, 6, 7 configured as the ring gear 3 are configured as stamped parts, in particular fine stamped parts, fine cut parts and / or precision stamped parts. Figure 1 The other gear elements 3, 4, 5, 6, 7 and / or gear parts 8, 9, 10 shown are similarly used for the following description of Figure 2 and Figure 3 The design and / or manufacture of the exemplary embodiments shown.

[0061] In stamping, in particular fine stamping, fine cutting and / or precision stamping, the gear elements 3, 4, 5, 6, 7 are made from sheet metal. Thus, in the exemplary embodiment shown, the gear elements 3, 4, 5, 6, 7 comprise at least one ring gear 3, which has a substantially constant wall thickness. During the stamping process, the sheet metal is formed along the Figure 1 The axis of rotation 18 of the planetary gear 2 shown is stamped and / or deformed, which can also be referred to as the stamped axis. By stamping, at least one gear element 3, 4, 5, 6, 7 receives at least one stamped outer contour 11 and / or at least one stamped inner contour 12. In the exemplary embodiment shown of the ring gear 3 configured as a gear element 3, 4, 5, 6, 7, in particular toothed and / or cam-like fixing parts 14 are arranged on the outer contour 11, and teeth 13 are arranged on the inner contour 12.

[0062] The gear element 3, 4, 5, 6, 7 can be deformed after and / or after stamping, in particular during fine stamping, fine cutting and / or fine stamping. Thus, the gear element 3, 4, 5, 6, 7, in particular the base body 15 of the ring gear 3, can be formed. Due to the deformation, at least one contact portion 16 and / or at least one bearing portion 17 is spaced apart from the base body 15 along the rotation axis 18 and / or protrudes from the base body 15. If the two contact portions 16 of at least two gear elements 3, 4, 5, 6, 7 formed as a ring gear 3 abut against each other, the corresponding base bodies 15, in particular the teeth 13 and / or the fixing portions 14 arranged thereon at least partially, can be spaced apart from each other along the rotation axis 18.

[0063] because Figure 1The planetary gears 5 of the planetary gear 2 shown in the exemplary embodiment of are also spaced apart from one another along the axis of rotation 18, so the teeth 13 of the ring gear unit 8 and / or of the two ring gears 3 can also be spaced apart from one another. Due to this spacing, unnecessary material can be saved, as a result of which the resulting actuator has a lower weight. In addition, due to the more uniform material behavior of the metal sheet, the metal sheet thickness can be significantly reduced compared to the sintered metal gear elements 3, 4, 5, 6, 7 of the prior art. In addition or as an alternative to the lower weight, this can also lead to a reduced space requirement for at least one gear component 8, 9, 10.

[0064] Figure 3 A schematic perspective view of a planetary unit 9 according to an exemplary embodiment is shown. In this case, Figure 3 The planetary unit 9 is similar to Figure 1 The planetary unit 9 in the exemplary embodiment of FIG. 4 . The planetary unit 9 therefore comprises a planet carrier 4 and at least one planet wheel 5. As an example, the gear element 3, 4, 5, 6, 7 configured as a planet carrier 4 comprises five bearing parts 17 for five planet wheels 5. It is also conceivable that the planet carrier 4 comprises more or less bearing parts 17, for example only three bearing parts 17. For the sake of clarity, only one planet wheel 5 is received by the planet carrier 4 or is arranged by means of at least one bearing part 17.

[0065] Figure 3 The planet carrier 4 and / or the planet wheel 5 shown in the exemplary embodiment of are also formed as stamped gear elements 3, 4, 5, 6, 7, i.e. stamped parts. Thus, at least one inner contour 12 and / or at least one outer contour 11 are stamped out and / or the gear elements 3, 4, 5, 6, 7, in particular the planet carrier 4, are formed. Thus, the gear element 3, 4, 5, 6, 7 configured as the planet carrier 4 comprises at least one bearing portion 17, which is adjacent to the base body 15 and / or at least partially protrudes from the base body 15. At the inner contour 12, the gear element 3, 4, 5, 6, 7 configured as the planet carrier 4 comprises teeth 13. The gear element 3, 4, 5, 6, 7 configured as the planet wheel 5 comprises teeth 13 at its outer contour 11.

[0066] If according to Figure 1 The actuator 1 is used according to Figure 2 If the planetary unit 9 and the ring gear unit 8 or the ring gear 3 are provided, the teeth 13 of at least one planetary gear 5 mesh with the teeth 13 of at least one ring gear 3 of the ring gear unit 8 .

[0067] As mentioned above, according to Figure 1 Additional and / or alternative gear elements 3 , 4 , 5 , 6 , 7 and / or gear components 8 , 9 , 10 of the actuator 1 , in particular the transmission 25 and / or the planetary gear 2 , can also be produced as stamped parts.

[0068] Reference numerals

[0069] 1 Actuator

[0070] 2 Planetary gear transmission

[0071] 3 Ring gear

[0072] 4 Planet carrier

[0073] 5 Planetary gears

[0074] 6 Sun gear

[0075] 7 Spur gears

[0076] 8 Ring gear unit

[0077] 9 Planetary Units

[0078] 10 Double gear

[0079] 11 Outer contour

[0080] 12 Inner contour

[0081] 13 teeth

[0082] 14 Fixed part

[0083] 15 Matrix

[0084] 16 Contact part

[0085] 17 Bearing part

[0086] 18 Rotation axis

[0087] 19 Bearing pin

[0088] 20 Receiver

[0089] 21 Planetary Axis

[0090] 22 Motor

[0091] 23 Fixing elements

[0092] 24 Supporting part

[0093] 25 Transmission

[0094] 26 Housing

Claims

1. A gear component (8, 9, 10) for a planetary gear (2) and / or a transmission (25) for an actuator (1) having at least one gear element (3, 4, 5, 6, 7), characterized in that: The at least one gear element (3, 4, 5, 6, 7) is formed as a stamped part, in particular as a fine stamped part, a fine cut part and / or a precision punched part.

2. Gear component according to the preceding claim, characterized in that The at least one gear element (3, 4, 5, 6, 7) comprises at least one stamped outer contour (11) and / or inner contour (12), wherein the at least one outer contour (11) and / or inner contour (12) preferably comprises at least one tooth (13) and / or at least one, in particular toothed and / or cam-shaped, fixing part (14).

3. The gear component according to claim 1, characterized in that The at least one gear element (3, 4, 5, 6, 7) comprises a base body (15), wherein the at least one tooth (13) and / or the at least one fixing portion (14) are preferably at least partially arranged on the base body (15).

4. The gear component according to claim 1, characterized in that The at least one gear element (3, 4, 5, 6, 7) comprises at least one contact portion (16) and / or at least one bearing portion (17), wherein the at least one contact portion (16) and / or the at least one bearing portion (17) preferably abuts against the base body (15).

5. Gear component according to one of the preceding claims, characterized in that The at least one contact portion (16) and / or the at least one bearing portion (17) are at least partially spaced apart from and / or protrude from the base body (15) along the rotation axis (18) of the gear component (8, 9, 10).

6. Gear component according to one of the preceding claims, characterized in that The gear component (8, 9, 10) comprises at least two gear elements (3, 4, 5, 6, 7), which, in the intended use of the gear component (8, 9, 10), bear against each other, support each other and / or are connected to each other, in particular via the at least one contact portion (16) and / or the at least one bearing portion (17).

7. Gear component according to one of the preceding claims, characterized in that At least one tooth (13) and / or at least one fixed portion (14) of at least two gear elements (3, 4, 5, 6, 7) which are arranged opposite to each other and / or connected to each other in the intended use of the gear component (8, 9, 10) are at least partially spaced apart from each other and / or arranged corresponding to each other along the rotation axis (18).

8. Gear component according to one of the preceding claims, characterized in that The gear element (3, 4, 5, 6, 7) is a ring gear (3), preferably at least two gear elements (3, 4, 5, 6, 7) configured as ring gears (3) form gear components (8, 9, 10) configured as a ring gear unit (8).

9. Gear component according to one of the preceding claims, characterized in that At least two gear elements (3, 4, 5, 6, 7) configured as ring gears (3) are connected to each other via at least one bearing pin (19), at least one of the gear elements (3, 4, 5, 6, 7) configured as ring gears (3) comprising at least one receiving cavity (20) for at least one bearing pin (19), which is preferably arranged in the region of at least one contact portion (16).

10. Gear component according to one of the preceding claims, characterized in that The gear elements (3, 4, 5, 6, 7) are planet carriers (4) and / or planet wheels (5), wherein preferably at least one planet wheel (5) and at least one planet carrier (4) form at least one gear part (8, 9, 10) configured as a planetary unit (9).

11. Gear component according to one of the preceding claims, characterized in that At least one gear element (3, 4, 5, 6, 7) configured as a planetary gear (5) is rotatably mounted and / or accommodated on at least one gear element (3, 4, 5, 6, 7) configured as a planetary carrier (4), in particular by means of at least one bearing part (17).

12. Gear component according to one of the preceding claims, characterized in that The gear elements (3, 4, 5, 6, 7) are sun gears (6) and / or spur gears (7), wherein preferably at least two gear elements (3, 4, 5, 6, 7) formed as sun gears (6) and / or spur gears (7) form gear parts (8, 9, 10) configured as double gears (10).

13. A planetary gear (2) for an actuator (1) having at least one gear element (8, 9, 10), characterized in that: The gear member (8, 9, 10) is formed according to one or more of the preceding claims.

14. The planetary gear according to claim 1, characterized in that In the intended use of the actuator (1), two teeth (13) arranged on the inner contour (12) of the respective ring gear (3) and / or the ring gear unit (8) mesh with two gear elements (3, 4, 5, 6, 7) of different gear stages of the planetary gear transmission (2), which are spaced apart along the axis of rotation (18) and are formed as planetary gears (5).

15. An actuator (1), in particular for a vehicle component having a planetary gear (2) and / or a transmission (25), characterized in that The planetary gear (2), the transmission (25) and / or the at least one gear element (8, 9, 10) are formed according to one or more of the preceding claims.

16. Use of gear elements (3, 4, 5, 6, 7) constructed as stamped parts, in particular fine stamped parts, fine cut parts and / or precision stamped parts in planetary gear transmissions (2), transmissions (25) and / or actuators (1), in particular according to one or more of the preceding claims.

17. A method for producing an actuator (1), in particular for a vehicle component, wherein: At least one gear element (3, 4, 5, 6, 7) of the actuator (1) is stamped from a metal sheet, in particular by fine stamping, fine cutting and / or fine stamping, wherein the at least one gear element (3, 4, 5, 6, 7) is preferably formed according to one or more of the preceding claims.

Citation Information

Patent Citations

  • Electromotive brake actuator

    EP1855927B1