Damp reduction gearbox, electric tail gate and automobile

文档序号:1739867 发布日期:2019-11-26 浏览:23次 中文

阅读说明:本技术 阻尼减速箱、电动尾门及汽车 (Damp reduction gearbox, electric tail gate and automobile ) 是由 陈建就 龙帅 陈进 于 2019-08-16 设计创作,主要内容包括:本发明涉及一种阻尼减速箱、电动尾门及汽车,包括:箱壳,所述箱壳的输出端口设置有轴承;动力输出轴,所述动力输出轴设置于所述箱壳内且一端与所述轴承套接,所述动力输出轴的外壁上设有第一齿结构;第一内齿圈,所述第一内齿圈套装于所述动力输出轴外部并与所述第一齿结构啮合传动;及摩擦片,所述摩擦片套装于所述动力输出轴上并与所述第一内齿圈的端面紧贴,所述摩擦片与所述箱壳的内箱壁固定,所述第一内齿圈能够相对所述摩擦片转动。相较于传统额外增加阻尼器的方式,本方案是通过对传统箱壳的内部结构改进来增强内阻,因而不会造成占用后备箱空间,增加成本的问题,利于提升制造商的生产经济性,降低用户成本。(The present invention relates to a kind of damping reduction gearbox, electric tail gate and automobiles, comprising: the output port of box shell, the box shell is provided with bearing;Power output shaft, the power output shaft is set in the box shell and one end and the bearing are socketed, and the outer wall of the power output shaft is equipped with the first toothing;First ring gear, first ring gear be set in outside the power output shaft and with the first toothing engaged transmission;And friction plate, the friction plate are set on the power output shaft and are close to the end face of first ring gear, the friction plate and the internal box wall of the box shell are fixed, and first ring gear can be rotated relative to the friction plate.Compared to traditional additional mode for increasing damper, this programme is to be improved by the internal structure to traditional box shell to enhance internal resistance, because of the problem of occupying standby box space without caused by, increasing cost, conducive to the production economy for promoting manufacturer, reduction user cost.)

1. a kind of damping reduction gearbox characterized by comprising

The output port of box shell, the box shell is provided with bearing;

Power output shaft, the power output shaft is set in the box shell and one end and the bearing are socketed, and the power is defeated The outer wall of shaft is equipped with the first toothing;

First ring gear, first ring gear are set in outside the power output shaft and engage biography with first toothing It is dynamic;And

Friction plate, the friction plate is set on the power output shaft and is close to the end face of first ring gear, described Friction plate and the internal box wall of the box shell are fixed, and first ring gear can be rotated relative to the friction plate.

2. damping reduction gearbox according to claim 1, which is characterized in that the power output shaft include shaft body and with The first load plate that the shaft body is connected far from one end of the bearing, the shaft body are equipped with stage portion, and the bearing clamps In the stage portion, the friction plate pressure be set between first ring gear and the bearing or first load plate with it is described Between first ring gear.

3. damping reduction gearbox according to claim 2, which is characterized in that the friction plate is two panels, wherein a piece of described Friction plate pressure is set between first ring gear and the bearing, another friction plate pressure be set to first load plate with Between first ring gear.

4. damping reduction gearbox according to claim 3, which is characterized in that be located at first ring gear and the bearing it Between and/or the friction plate between first load plate and first ring gear be at least two panels.

5. damping reduction gearbox according to claim 3, which is characterized in that the damping reduction gearbox further includes locating plate, institute Locating plate pressure is stated to be set between the friction plate and first load plate and/or between the bearing and the friction plate.

6. damping reduction gearbox according to claim 5, which is characterized in that the damping reduction gearbox further includes elastic pressuring plate, The elastic pressuring plate pressure is set between first load plate and the locating plate or/and between the bearing and the locating plate.

7. damping reduction gearbox according to claim 5, which is characterized in that the internal box wall of the box shell is equipped with the first protrusion, The periphery wall of the friction plate and the locating plate is recessed with the first recess portion, and first protrusion engages with first recess portion, So that the friction plate and the locating plate can relatively described first ring gear it is stationary.

8. damping reduction gearbox according to any one of claims 1 to 7, which is characterized in that the damping reduction gearbox further includes Power input shaft, primary speed-down gear, the second ring gear, adapter and double-reduction gear, the power input shaft are inserted in In the input port of the box shell, second ring gear is set on the internal box wall of the box shell, and the adapter includes same The gear shaft of axis connection and the second load plate, the primary speed-down gear be set on second load plate and with second internal tooth Circle engaged transmission, the primary speed-down gear and the adapter are opposing stationary;The double-reduction gear is set to described On one load plate and with gear shaft engaged transmission, and the second toothing is additionally provided on the internal box wall of the box shell, the second level Reduction gearing is also engaged with second toothing;The tank wall of the box shell is additionally provided with the second protrusion, second ring gear Collar wall is equipped with the second recess portion, and second protrusion engages with second recess portion, enables second ring gear and institute It states box shell and keeps opposing stationary.

9. a kind of electric tail gate, which is characterized in that including the described in any item damping reduction gearboxes of such as the claims 1 to 8.

10. a kind of automobile, which is characterized in that including such as above-mentioned electric tail gate as claimed in claim 9.

Technical field

The present invention relates to technical field of automobile accessories, more particularly to a kind of damping reduction gearbox, electric tail gate and automobile.

Background technique

Currently, the opening and closing movement of the tail-gate of automobile depends on strut realization.Strut generally Telescopic rod structure, will when elongation Tail-gate, which jacks up, to be opened, and when contraction puts down tail-gate to be closed with car body.And for the automobile of certain specific types, such as SUV, pick up Deng tail-gate weight is larger, and strut itself internal resistance is caused to be not enough to support tail-gate weight, just needs additionally to increase for strut at this time Damper.But other problem can be brought therewith by increasing damper: being increased damper and directly resulted in manufacturing cost raising, therewith Increase enterprise and the financial burden of customer;In addition, damper can also occupy additional installation space, standby box space is caused not Necessity waste.

Summary of the invention

Based on this, it is necessary to provide a kind of damping reduction gearbox, electric tail gate and automobile, it is intended to solve prior art manufacture at This height occupies the problem of standby box space.

Its technical solution is as follows:

On the one hand, the application provides a kind of damping reduction gearbox comprising:

The output port of box shell, the box shell is provided with bearing;

Power output shaft, the power output shaft is set in the box shell and one end and the bearing are socketed, described dynamic The outer wall of power output shaft is equipped with the first toothing;

First ring gear, first ring gear are set in outside the power output shaft and nibble with first toothing Close transmission;And

Friction plate, the friction plate are set on the power output shaft and are close to the end face of first ring gear, The friction plate and the internal box wall of the box shell are fixed, and first ring gear can be rotated relative to the friction plate.

Above-mentioned damping reduction gearbox application is equipped in the support rod mechanism of automobile power back door, realizes the resistance of enhancing support rod mechanism Damping properties form secure support to greater weight tail-gate.Specifically, power output shaft is by one end and is preset in output end Bearing socket in mouthful can be fixedly attached to inside box shell, and power output shaft can reliably rotate when obtaining power drive.In addition, It is set with the first ring gear on power output shaft, and the first ring gear is engaged with the first toothing, thus the first internal tooth Circle, which can synchronize, follows power output shaft to rotate.But due to being further sleeved with friction plate on power output shaft, and friction plate be with What the end face of the first ring gear closely crimped, what friction plate was fixed with the internal box wall of box shell again, thus when the rotation of the first ring gear, Friction plate will not be driven by the first ring gear to be rotated together, can apply the enough frictions of the first ring gear by plane contact on the contrary Resistance, the frictional resistance can effectively increase the internal resistance of reduction gearbox, that is, the internal resistance for increasing support rod mechanism be realized, so that support rod mechanism Support performance greatly enhance, secure support also can be realized to heavy weight tail-gate and fix.And compared to traditional additional increase The mode of damper, this programme are improved by the internal structure to traditional box shell to enhance internal resistance, because occupying without caused by The problem of standby box space, increase cost, reduces user cost conducive to the production economy for promoting manufacturer.

The technical solution of the application is further described below:

In one of the embodiments, the power output shaft include shaft body and with the shaft body far from the axis First load plate of one end connection held, the shaft body are equipped with stage portion, and the bearing is installed in the stage portion, the friction Piece pressure is set between first ring gear and the bearing or between first load plate and first ring gear.

The friction plate is two panels in one of the embodiments, wherein a piece of friction plate pressure is set to described first Between ring gear and the bearing, another friction plate pressure is set between first load plate and first ring gear.

In one of the embodiments, between first ring gear and the bearing and/or first load plate The friction plate between first ring gear is at least two panels.

The damping reduction gearbox further includes locating plate in one of the embodiments, and the locating plate pressure is set to described rub Between pad and first load plate and/or between the bearing and the friction plate.

The damping reduction gearbox further includes elastic pressuring plate in one of the embodiments, and the elastic pressuring plate pressure is set to institute It states between the first load plate and the locating plate or/and between the bearing and the locating plate.

The internal box wall of the box shell is equipped with the first protrusion, the friction plate and the positioning in one of the embodiments, The periphery wall of piece is recessed with the first recess portion, and first protrusion engages with first recess portion, so that the friction plate and described Locating plate can relatively described first ring gear it is stationary.

The damping reduction gearbox further includes power input shaft, primary speed-down gear, in second in one of the embodiments, Gear ring, adapter and double-reduction gear, the power input shaft are inserted in the input port of the box shell, in described second Gear ring is set on the internal box wall of the box shell, and the adapter includes coaxially connected gear shaft and the second load plate, and described one Grade reduction gearing be set on second load plate and with second ring gear engaged transmission, the primary speed-down gear and institute It is opposing stationary to state adapter;The double-reduction gear be set on first load plate and with gear shaft engaged transmission, And the second toothing is additionally provided on the internal box wall of the box shell, the double-reduction gear is also engaged with second toothing; The tank wall of the box shell is additionally provided with the second protrusion, and the collar wall of second ring gear is equipped with the second recess portion, second protrusion Engage with second recess portion, second ring gear is enabled to keep opposing stationary with the box shell.

On the other hand, the application also provides a kind of electric tail gate and automobile comprising damps reduction gearbox as described above.

Detailed description of the invention

Fig. 1 is structural schematic diagram (box shell and the internal drive component point of damping reduction gearbox described in one embodiment of the invention From);

Fig. 2 is the structural schematic diagram of the internal drive component of damping reduction gearbox shown in Fig. 1;

Fig. 3 is the structural schematic diagram of box shell in Fig. 1;

Fig. 4 is the structural schematic diagram that the internal drive component of the second ring gear is eliminated in Fig. 2;

Fig. 5 is the partition structural schematic diagram of Fig. 4.

Description of symbols:

10, box shell;11, the first protrusion;12, the second toothing;13, the second protrusion;20, bearing;30, power output shaft; 31, the first load plate;40, the first ring gear;50, friction plate;60, locating plate;70, elastic pressuring plate;80, the first recess portion;90, power Input shaft;100, primary speed-down gear;110, the second ring gear;111, the second recess portion;120, adapter;121, gear shaft; 122, the second load plate;130, double-reduction gear.

Specific embodiment

To make the objectives, technical solutions, and advantages of the present invention more comprehensible, below in conjunction with attached drawing and specific embodiment party Formula, the present invention is further described in detail.It should be understood that the specific embodiments described herein are only to solve The present invention is released, and the scope of protection of the present invention is not limited.

It should be noted that when element is referred to as " being fixedly arranged on ", " being set to " or " install in " another element, it can be with Directly on the other element or there may also be elements placed in the middle.When an element is considered as " connection " another yuan Part, it can be directly to another element or may be simultaneously present centering elements;One element and another element The concrete mode being fixedly connected can be achieved by the prior art, and details are not described herein, it is preferred to use the fixation side of threaded connection Formula.

Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more Any and all combinations of relevant listed item.

Heretofore described " first ", " second " do not represent specific quantity and sequence, are only used for the differentiation of title.

The application provides a kind of automobile, which can be the automobile of any type in the prior art or model, such as sedan-chair Vehicle, SUV, truck, train etc., this programme are illustrated for surrounding the large-scale SUV with greater weight tail-gate emphatically.SUV Automobile is at least made of car body and electric tail gate.Electric tail gate is mounted on the rear portion of car body, and on or off can be played with boot Close cooperation.It is fixed on open position after electric tail gate is automatically opened and opened in order to realize, it need to be equipped to electric tail gate The power of motor, damping reduction gearbox and support rod mechanism, motor output passes to support rod mechanism through overdamp reduction gearbox, so that support Linkage can stretch elongated and strut electric tail gate and position fixation.Damping reduction gearbox is capable of providing sufficiently large internal resistance, Enable the heavy weight electric tail gate of support rod mechanism secure support.

As shown in Fig. 1, Fig. 3 and Fig. 5, for the internal component and box shell for damping reduction gearbox for the embodiment that the application is shown 10 configuration schematic diagram comprising: box shell 10, power input shaft 90, primary speed-down gear 100, the first ring gear 40, Two ring gears 110, adapter 120, double-reduction gear 130, friction plate 50, bearing 20 and power output shaft 30.Wherein, it removes Remaining all component other than box shell 10 constitute the internal drive component of damping reduction gearbox.

The power input shaft 90 is inserted in the input port of the box shell 10, and power input shaft 90 stretches out box shell 10 One end be connected to motor to obtain rotary power.The bearing 20 is set in the output port of the box shell 10;It is described dynamic Power output shaft 30 is set in the box shell 10 and one end and the bearing 20 are socketed, thus bearing 20 can output power axis 30 reliable installations are fixed, and mitigate frictional dissipation when power output shaft 30 rotates with output port side wall.The power output The outer wall of axis 30 is equipped with the first toothing, first ring gear 40 be set in 30 outside of the power output shaft and with it is described First toothing engaged transmission.Second ring gear 110 is set on the internal box wall of the box shell 10, the adapter 120 Including coaxially connected gear shaft 121 and the second load plate 122, the primary speed-down gear 100 is set to second load plate 122 It is upper and with 110 engaged transmission of the second ring gear, the primary speed-down gear 100 and the adapter 120 are opposing stationary;Institute State double-reduction gear 130 be set on first load plate 31 and with 121 engaged transmission of the gear shaft, and the box shell 10 Internal box wall on be additionally provided with the second toothing 12, the double-reduction gear 130 is also engaged with second toothing 12;It is described The tank wall of box shell 10 is additionally provided with the second protrusion 13, and the collar wall of second ring gear 110 is equipped with the second recess portion 111, and described the Two protrusions 13 engage with second recess portion 111, and second ring gear 110 is enabled to keep relatively quiet with the box shell 10 Only.

Please continue to refer to Fig. 4 and Fig. 5, specifically, primary speed-down gear 100 is three, on the second load plate 122 circumferentially Even to be arranged at intervals with three vertical shafts, three primary speed-down gears 100 are sleeved on three vertical shafts correspondingly, and are kept each other It is opposing stationary.It should be understood that primary speed-down gear and vertical shaft keep opposing stationary mode to can be key and keyway cooperation, mistake Be full of cooperation, be clasped.

121 shaft part of gear shaft of power input shaft 90 is protruded among three primary speed-down gears 100 and is engaged simultaneously Three 100 synchronous rotaries of primary speed-down gear of synchronous driving, and since primary speed-down gear 100 is and the second ring gear 110 Engagement, thus just reach primary speed-down transmission purpose.Further, since primary speed-down gear 100 is and the second load plate 122 And gear shaft 121 is fixedly connected, therefore gear shaft 121 also can be by driving synchronous rotary;Gear shaft 121 rotates further meeting Double-reduction gear 130 is driven to rotate, double-reduction gear 130 is nibbled with the second toothing 12 being preset on 10 inner wall of box shell It closes, to reach double reduction purpose.And at this point, since double-reduction gear 130 is connect with power output shaft 30, power Output shaft 30 can then be driven to rotate to realize that the power after slowing down steadily exports.

The friction plate 50 is set on the power output shaft 30 and is close to the end face of first ring gear 40, institute It states friction plate 50 and the internal box wall of the box shell 10 is fixed, first ring gear 40 can be rotated relative to the friction plate 50.

Please continue to refer to Fig. 1, above-mentioned damping reduction gearbox application is equipped in the support rod mechanism of automobile power back door, is realized and is increased The damping capacity of strong support rod mechanism forms secure support to greater weight tail-gate.Specifically, power output shaft 30 passes through one Holding and be preset in the socket of bearing 20 in output port can be fixedly attached to inside box shell 10, and power output shaft 30 obtains power and drives It can reliably be rotated when dynamic.In addition, being set with the first ring gear 40 on power output shaft 30, and the first ring gear 40 is and The engagement of one toothing, thus the first ring gear 40 can synchronize and power output shaft 30 is followed to rotate.But due to power output shaft Friction plate 50 is further sleeved on 30, and friction plate 50 is closely crimped with the end face of the first ring gear 40, friction plate 50 is again It is fixed with the internal box wall of box shell 10, thus when the rotation of the first ring gear 40, friction plate 50 will not be driven by the first ring gear 40 It rotates together, the enough frictional resistance of the first ring gear 40 can be applied by plane contact on the contrary, which can be effective Increase the internal resistance of box shell 10, that is, the internal resistance for increasing support rod mechanism is realized, so that the support performance of support rod mechanism greatly enhances, to big The tail-gate of weight also can be realized secure support and fix.And compared to traditional additional mode for increasing damper, this programme is logical It crosses and the internal structure of traditional box shell 10 is improved to enhance internal resistance, because occupying standby box space without caused by, increase cost Problem reduces user cost conducive to the production economy for promoting manufacturer.

Please continue to refer to Fig. 1 and Fig. 4, in an embodiment, the power output shaft 30 include shaft body and with the axis sheet The first load plate 31 that body is connected far from one end of the bearing 20, the shaft body are equipped with stage portion, and the bearing 20 is installed in The stage portion, the pressure of friction plate 50 is set between first ring gear 40 and the bearing 20 or first load plate 31 Between first ring gear 40.Such bearing 20 realizes that installation fixation does not loosen by engaging with stage portion, and then to dynamic The support of power output shaft 30 is fixed.First load plate 31 is circumferentially recessed there are four recess away from the end face of shaft body, in each recess It is plugged with a shaft, a double-reduction gear 130 is set on each shaft, four double reduction teeth can be formed Wheel 130 is engaged with the second toothing 12 simultaneously, is conducive to promote power transmission efficiency.In basic embodiment, optionally, friction Piece 50 is installed between the first ring gear 40 and bearing 20, or be installed in the first load plate 31 and the first ring gear 40 it Between, both modes can be such that friction plate 50 and the end face of the first ring gear 40 closely crimps, by friction plate 50 and first Gear ring 40 relatively rotates and generates sufficiently large frictional resistance, to promote the internal resistance of reduction gearbox and support rod mechanism.

Further, the friction plate 50 is two panels, wherein a piece of friction plate 50 pressure is set to first ring gear Between 40 and the bearing 20, another friction plate 50 pressure be set to first load plate 31 and first ring gear 40 it Between.In this way, two friction plates 50 can bestow 40 upper and lower surface frictional resistance of the first ring gear simultaneously, the first ring gear is enhanced 40 promote the support of support rod mechanism to further promote the damping capacity of reduction gearbox with the rotary torsion of power output shaft 30 Ability.

Preferably, it need to guarantee flatness when friction plate 50 and the first ring gear 40 are processed, and then can be obtained when the two cooperation Maximum contact area is obtained, i.e. guarantee frictional resistance generates maximization.

Particularly, between first ring gear 40 and the bearing 20 and/or first load plate 31 with it is described The friction plate 50 between first ring gear 40 is at least two panels.In this way, can be increased by increasing the quantity of friction plate 50 Add frictional resistance, and then change the rotary torsion of the first ring gear 40 and power output shaft 30, and is finally reached and increases internal resistance Reduction gearbox and the purpose of support rod mechanism internal resistance.

Please continue to refer to Fig. 1, in addition, the damping reduction gearbox further includes locating plate 60, the pressure of locating plate 60 is set to institute It states between friction plate 50 and first load plate 31 and/or between the bearing 20 and the friction plate 50.Such locating plate 60 It can play the role of positioning support to friction plate 50, while guarantee the position precision of the first ring gear 40, make itself and power output The first toothing on axis 30 accurately engages, and then guarantees that power transmission is reliable.Preferably, locating plate 60 is two panels, wherein A piece of pressure is set between the first load plate 31 and friction plate 50, and another pressure is set between bearing 20 and friction plate 50, is played to rubbing About 40 positioning support purpose of pad 50 and the first ring gear.

Please continue to refer to Fig. 2, based on any of the above embodiments, the internal box wall of the box shell 10 is equipped with the first protrusion 11, the periphery wall of the friction plate 50 and the locating plate 60 is recessed with the first recess portion 80, first protrusion 11 and described the One recess portion 80 engaging so that the friction plate 50 and the locating plate 60 can relatively described first ring gear 40 it is static not It is dynamic.In this way, being engaged by the first protrusion 11 with the first recess portion 80, it is ensured that friction plate 50 and locating plate 60 are fixed in box shell 10 It is motionless, i.e., 40 synchronous rotary of the first ring gear will not be followed, friction plate 50 is made more fully to rub the generation of the first ring gear 40 Resistance, and change the torsion of power output shaft 30 finally to increase the internal resistance of reduction gearbox and support rod mechanism.

However, friction plate 50, locating plate 60 and bearing 20, which can have manufacture size in the fabrication stage, to be missed in actual production Difference, and can also have abrasion size error in long-term work, cause to generate seam between friction plate 50 and the first ring gear 40 Gap, which, which will have a direct impact on, generates frictional resistance to the first ring gear 40, and then influences the increase of internal resistance.It is described based on this Damping reduction gearbox further includes elastic pressuring plate 70, the elastic pressuring plate 70 pressure be set to first load plate 31 and the locating plate 60 it Between or/and the bearing 20 and the locating plate 60 between.Elastic pressuring plate 70 can be applied to friction plate 50 and locating plate 60 always Add elastic pressure, the surface of the first ring gear 40 can be tightly crimped on by making friction plate 50 always, to prevent the above problem from sending out It is raw.

Optionally, elastic pressuring plate 70 specifically can be ripple type spring leaf, can generate after the deformation that is squeezed bigger Bounce pressure promotes the even closer surface for being crimped on the first ring gear 40 of tabletting.It of courses, in other embodiments, elasticity Tabletting 70 can be the component of other shapes or structure.

Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, all should be considered as described in this specification.

The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.

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