CN115750727A - Noise reduction gear and engine - Google Patents

Noise reduction gear and engine Download PDF

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CN115750727A
CN115750727A CN202211260220.9A CN202211260220A CN115750727A CN 115750727 A CN115750727 A CN 115750727A CN 202211260220 A CN202211260220 A CN 202211260220A CN 115750727 A CN115750727 A CN 115750727A
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gear
noise reduction
teeth
adjustment assembly
adjusting part
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王志秀
李扬
李栋
于健
陈相丞
崔凯
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Weichai Power Co Ltd
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Weichai Power Co Ltd
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Abstract

本发明属于发动机技术领域,具体涉及降噪齿轮及发动机。降噪齿轮包括模数和齿数均相同的第一齿轮和第二齿轮,降噪齿轮还包括调节组件,第二齿轮套设于第一齿轮上,且第二齿轮的轮齿和第一齿轮的轮齿在周向上呈错开角度设置,调节组件与第一齿轮相连,且调节组件与第二齿轮相连;当第一齿轮和第二齿轮发生相对转动时,调节组件设置成调节错开角度,以及调节第一齿轮和第二齿轮之间的距离。本发明采用调节组件使得第一齿轮和第二齿轮之间互相远离,来消除齿轮间的侧隙,从而避免产生初始阶段啮合时的碰撞冲击,降低发动机产生的噪音,无需采用现有技术中的橡胶套,避免因为橡胶套反复挤压受力导致碎裂或者失去弹性,从而提高降噪齿轮的使用寿命。

Figure 202211260220

The invention belongs to the technical field of engines, and in particular relates to noise reduction gears and engines. The noise reduction gear includes a first gear and a second gear with the same module and number of teeth, the noise reduction gear also includes an adjustment assembly, the second gear is sleeved on the first gear, and the teeth of the second gear and the teeth of the first gear The gear teeth are set at a staggered angle in the circumferential direction, the adjustment assembly is connected with the first gear, and the adjustment assembly is connected with the second gear; when the first gear and the second gear rotate relative to each other, the adjustment assembly is set to adjust the stagger angle, and adjust The distance between the first gear and the second gear. The present invention uses an adjustment assembly to make the first gear and the second gear far away from each other to eliminate the backlash between the gears, thereby avoiding the collision impact during the initial stage meshing, reducing the noise generated by the engine, and eliminating the need to use the prior art The rubber sleeve prevents the rubber sleeve from cracking or losing elasticity due to repeated extrusion and force, thereby improving the service life of the noise reduction gear.

Figure 202211260220

Description

降噪齿轮及发动机Noise reduction gear and engine

技术领域technical field

本发明属于发动机技术领域,具体涉及一种降噪齿轮及发动机。The invention belongs to the technical field of engines, and in particular relates to a noise reduction gear and an engine.

背景技术Background technique

本部分提供的仅仅是与本公开相关的背景信息,其并不必然是现有技术。This section provides background information related to the present disclosure only and is not necessarily prior art.

发动机的齿轮传动过程中会受热膨胀,实际加工装配时存在误差等因素,在加工齿轮时必须通过人为调整的方式,留出合适的齿轮侧隙,避免齿轮由于热膨胀及偏心安装等原因在工作时发生齿面干涉甚至卡住,导致传动失效。由于轮齿在传递扭矩时,由于齿轮副的齿轮之间存在齿轮侧隙,啮合不平滑,导致初始阶段啮合时产生碰撞冲击,且齿轮驱动的附件在获取动力的同事也承受了一定的冲击载荷,导致发动机产生的噪音较大。The gears of the engine will be heated and expanded during the transmission process, and there are factors such as errors in the actual processing and assembly. When processing the gears, it is necessary to manually adjust the way to leave a suitable gear backlash, so as to avoid the thermal expansion and eccentric installation of the gears during work. Tooth surface interference or even jamming occurs, resulting in transmission failure. When the gear teeth are transmitting torque, due to the gear backlash between the gears of the gear pair, the meshing is not smooth, resulting in a collision impact during the initial stage of meshing, and the gear-driven accessories also bear a certain impact load while obtaining power , resulting in louder engine noise.

现有技术中的降噪齿轮一般由第一齿轮、第二齿轮及销钉三部分组成,销钉能够穿设第一齿轮和第二齿轮,以实现第一齿轮和第二齿轮的连接,使得第一齿轮、第二齿轮作为一个复合齿轮使用,用于与传动齿轮进行啮合传动。在销钉的外部套设有橡胶套,依靠橡胶套的弹性作用使得第一齿轮和第二齿轮之间错开一定的角度,实现第一齿轮和第二齿轮分别与传动齿轮相贴合,从而消除齿轮间的侧隙。The noise reduction gear in the prior art generally consists of three parts: the first gear, the second gear and the pin. The pin can pass through the first gear and the second gear to realize the connection between the first gear and the second gear, so that the first The gear and the second gear are used as a compound gear for meshing transmission with the transmission gear. There is a rubber sleeve on the outside of the pin, relying on the elastic effect of the rubber sleeve to make the first gear and the second gear stagger a certain angle, so that the first gear and the second gear are respectively fitted with the transmission gear, thereby eliminating the gear the side gap between.

采用这种方式,由于第二齿轮的回位需要靠橡胶套的弹性保证,但是橡胶套在工作过程中被反复挤压受力,橡胶套容易碎裂损坏或失去弹性,橡胶套的有效使用寿命较低,从而影响侧隙消除效果。同时,橡胶套刚度无法评估,若刚度过大容易造成传动齿轮因热涨而卡死的情况,无法保证齿轮传动副的正常工作。In this way, since the return of the second gear needs to be guaranteed by the elasticity of the rubber sleeve, but the rubber sleeve is repeatedly squeezed and stressed during the working process, the rubber sleeve is easily broken, damaged or loses elasticity, and the effective service life of the rubber sleeve Lower, thus affecting the effect of backlash elimination. At the same time, the rigidity of the rubber sleeve cannot be evaluated. If the rigidity is too high, the transmission gear may be stuck due to thermal expansion, and the normal operation of the gear transmission pair cannot be guaranteed.

发明内容Contents of the invention

本发明的目的是至少解决现有技术中的降噪齿轮有效使用寿命短的问题。该目的是通过以下技术方案实现的:The object of the present invention is to at least solve the problem of short effective service life of the noise reduction gears in the prior art. This purpose is achieved through the following technical solutions:

本发明的第一方面提出了一种降噪齿轮,包括模数和齿数均相同的第一齿轮和第二齿轮,所述第二齿轮套设于所述第一齿轮上,且所述第二齿轮的轮齿和所述第一齿轮的轮齿在周向上呈错开角度设置,所述降噪齿轮还包括:The first aspect of the present invention proposes a noise reduction gear, including a first gear and a second gear with the same module and number of teeth, the second gear is sleeved on the first gear, and the second The gear teeth of the gear and the gear teeth of the first gear are arranged at a staggered angle in the circumferential direction, and the noise reduction gear further includes:

调节组件,所述调节组件与所述第一齿轮相连,且所述调节组件与所述第二齿轮相连;an adjustment assembly, the adjustment assembly is connected to the first gear, and the adjustment assembly is connected to the second gear;

当所述第一齿轮和所述第二齿轮发生相对转动时,所述调节组件设置成调节所述错开角度,以及调节所述第一齿轮和所述第二齿轮之间的距离。When the first gear and the second gear rotate relative to each other, the adjustment assembly is configured to adjust the stagger angle and adjust the distance between the first gear and the second gear.

根据本发明的降噪齿轮,采用调节组件使得第一齿轮和第二齿轮之间互相远离,来消除齿轮间的侧隙,从而避免产生初始阶段啮合时的碰撞冲击,降低发动机产生的噪音,无需采用现有技术中的橡胶套,避免因为橡胶套反复挤压受力导致碎裂或者失去弹性,从而提高降噪齿轮的使用寿命。According to the noise-reducing gear of the present invention, the adjustment assembly is used to make the first gear and the second gear far away from each other to eliminate the backlash between the gears, thereby avoiding the collision impact during the initial meshing and reducing the noise generated by the engine without The rubber sleeve in the prior art is adopted to avoid cracking or loss of elasticity of the rubber sleeve due to repeated extrusion and force, thereby improving the service life of the noise reduction gear.

另外,根据本发明的降噪齿轮,还可具有如下附加的技术特征:In addition, the noise reduction gear according to the present invention may also have the following additional technical features:

在本发明的一些实施例中,所述调节组件包括第一调节部和第二调节部;In some embodiments of the present invention, the adjustment assembly includes a first adjustment part and a second adjustment part;

所述第一调节部设置于所述第一齿轮上,所述第二调节部设置于所述第二齿轮上,且所述第一调节部和所述第二调节部相抵接。The first adjusting part is arranged on the first gear, the second adjusting part is arranged on the second gear, and the first adjusting part and the second adjusting part abut against each other.

在本发明的一些实施例中,所述第一齿轮设置有第一安装孔,所述第一安装孔内设置有第一紧固件,所述第一调节部固接于所述第一紧固件上;In some embodiments of the present invention, the first gear is provided with a first installation hole, and a first fastener is provided in the first installation hole, and the first adjustment part is fixedly connected to the first fastener. on the firmware;

所述第二齿轮设置有第二安装孔,所述第二安装孔内设置有第二紧固件,所述第二调节部固接于所述第二紧固件上;The second gear is provided with a second mounting hole, a second fastener is disposed in the second mounting hole, and the second adjusting part is fixedly connected to the second fastener;

所述第一安装孔和所述第二安装孔相对设置。The first mounting hole is opposite to the second mounting hole.

在本发明的一些实施例中,所述第一调节部为第一楔形块,所述第一楔形块包括第一工作面;In some embodiments of the present invention, the first adjusting part is a first wedge block, and the first wedge block includes a first working surface;

所述第二调节部为第二楔形块,所述第二楔形块包括第二工作面;The second adjusting part is a second wedge block, and the second wedge block includes a second working surface;

所述第一工作面和所述第二工作面相抵接。The first working surface abuts against the second working surface.

在本发明的一些实施例中,所述第一工作面和所述第二工作面均为斜面。In some embodiments of the present invention, both the first working surface and the second working surface are sloped.

在本发明的一些实施例中,所述第一楔形块还包括第一配合面,所述第一配合面与所述第一齿轮的圆弧部配合;In some embodiments of the present invention, the first wedge block further includes a first mating surface, and the first mating surface is mated with the arc portion of the first gear;

所述第二楔形块还包括第二配合面,所述第二配合面与所述第二齿轮的圆弧部配合。The second wedge block also includes a second matching surface, and the second matching surface is matched with the arc portion of the second gear.

在本发明的一些实施例中,所述第一齿轮的齿盘上环绕第一轴孔设有凸台,所述第二齿轮套设于所述凸台上并能够相对所述凸台转动。In some embodiments of the present invention, a boss is provided around the first shaft hole on the chainring of the first gear, and the second gear is sleeved on the boss and can rotate relative to the boss.

在本发明的一些实施例中,所述调节组件还包括复位件;In some embodiments of the present invention, the adjustment assembly further includes a reset member;

所述凸台上设置有凹槽,所述复位件设置于所述凹槽中,所述复位件具有预紧力,通过所述预紧力将所述第一齿轮和所述第二齿轮压紧。The boss is provided with a groove, the reset member is arranged in the groove, the reset member has a pre-tightening force, and the first gear and the second gear are pressed by the pre-tightening force. tight.

在本发明的一些实施例中,所述复位件为蝶形弹簧。In some embodiments of the present invention, the reset member is a Belleville spring.

本发明的第二方面提出了一种发动机,包括如上面实施例所述的降噪齿轮。The second aspect of the present invention proposes an engine comprising the noise reduction gear as described in the above embodiments.

附图说明Description of drawings

通过阅读下文优选实施方式的详细描述,各种其他的优点和益处对于本领域普通技术人员将变得清楚明了。附图仅用于示出优选实施方式的目的,而并不认为是对本发明的限制。而且在整个附图中,用相同的附图标记表示相同的部件。在附图中:Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiment. The drawings are only for the purpose of illustrating a preferred embodiment and are not to be considered as limiting the invention. Also throughout the drawings, the same reference numerals are used to denote the same parts. In the attached picture:

图1示意性地示出了根据本发明实施方式的降噪齿轮的整体结构示意图(第一齿轮的轮齿和第二齿轮的轮齿呈错开角度设置);Figure 1 schematically shows a schematic diagram of the overall structure of a noise-reducing gear according to an embodiment of the present invention (the teeth of the first gear and the teeth of the second gear are arranged at staggered angles);

图2为图1中A-A剖面的结构示意图;Fig. 2 is the structural representation of A-A section among Fig. 1;

图3为图1中B-B剖面的结构示意图;Fig. 3 is the structural representation of B-B section among Fig. 1;

图4为图1中C处的局部放大图;Fig. 4 is a partial enlarged view of place C in Fig. 1;

图5为图1中的降噪齿轮的分解结构示意图;Fig. 5 is a schematic diagram of an exploded structure of the noise reduction gear in Fig. 1;

图6为图1中所示的第一齿轮和第一调节部的装配结构示意图;Fig. 6 is a schematic diagram of the assembly structure of the first gear and the first adjusting part shown in Fig. 1;

图7为图6中所示的第一齿轮和第一调节部处于第二视角的结构示意图;Fig. 7 is a structural schematic view of the first gear and the first adjusting part shown in Fig. 6 at a second viewing angle;

图8为图6中所示的第一齿轮和第一调节部处于装配状态的结构示意图;Fig. 8 is a structural schematic diagram of the first gear and the first adjusting part shown in Fig. 6 in an assembled state;

图9为图8中D-D剖面的剖视图;Fig. 9 is a sectional view of D-D section in Fig. 8;

图10为图8中所示的第一齿轮和第一调节部处于第二视角的结构示意图;Fig. 10 is a structural schematic view of the first gear and the first adjusting part shown in Fig. 8 at a second viewing angle;

图11为图6中第一调节部的结构示意图;Fig. 11 is a schematic structural diagram of the first adjusting part in Fig. 6;

图12为图6中第一调节部的第二视角的结构示意图;Fig. 12 is a structural schematic diagram of a second viewing angle of the first adjusting part in Fig. 6;

图13为图1中所示的降噪齿轮的整体结构示意图(第一齿轮的轮齿和第二齿轮的轮齿重合);Fig. 13 is a schematic diagram of the overall structure of the noise reduction gear shown in Fig. 1 (the teeth of the first gear and the teeth of the second gear overlap);

图14为图13中E-E剖面的剖视图。FIG. 14 is a cross-sectional view of E-E section in FIG. 13 .

附图标记如下:The reference signs are as follows:

100为降噪齿轮;100 is the noise reduction gear;

10为第一齿轮;11为第一安装孔;12为凸台;121为凹槽;13为第一轴孔;14为第一圆弧部;15为错开面;10 is the first gear; 11 is the first mounting hole; 12 is the boss; 121 is the groove; 13 is the first shaft hole; 14 is the first arc portion; 15 is the staggered surface;

20为第二齿轮;21为第二安装孔;22为第二轴孔;20 is the second gear; 21 is the second mounting hole; 22 is the second shaft hole;

30为调节组件;31为第一调节部;311为第一工作面;312为第一配合面;32为第二调节部;321为第二工作面;322为第二配合面;30 is the adjustment component; 31 is the first adjustment part; 311 is the first working surface; 312 is the first matching surface; 32 is the second adjusting part; 321 is the second working surface; 322 is the second matching surface;

40为第一紧固件;40 is the first fastener;

50为第二紧固件;50 is the second fastener;

60为复位件。60 is reset piece.

具体实施方式Detailed ways

下面将参照附图更详细地描述本公开的示例性实施方式。虽然附图中显示了本公开的示例性实施方式,然而应当理解,可以以各种形式实现本公开而不应被这里阐述的实施方式所限制。相反,提供这些实施方式是为了能够更透彻地理解本公开,并且能够将本公开的范围完整的传达给本领域的技术人员。Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

应理解的是,文中使用的术语仅出于描述特定示例实施方式的目的,而无意于进行限制。除非上下文另外明确地指出,否则如文中使用的单数形式“一”、“一个”以及“所述”也可以表示包括复数形式。术语“包括”、“包含”、“含有”以及“具有”是包含性的,并且因此指明所陈述的特征、步骤、操作、元件和/或部件的存在,但并不排除存在或者添加一个或多个其它特征、步骤、操作、元件、部件、和/或它们的组合。文中描述的方法步骤、过程、以及操作不解释为必须要求它们以所描述或说明的特定顺序执行,除非明确指出执行顺序。还应当理解,可以使用另外或者替代的步骤。It should be understood that the terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may also be meant to include the plural forms unless the context clearly dictates otherwise. The terms "comprising", "comprising", "containing" and "having" are inclusive and thus indicate the presence of stated features, steps, operations, elements and/or parts but do not exclude the presence or addition of one or Various other features, steps, operations, elements, components, and/or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless an order of performance is specifically indicated. It should also be understood that additional or alternative steps may be used.

尽管可以在文中使用术语第一、第二、第三等来描述多个元件、部件、区域、层和/或部段,但是,这些元件、部件、区域、层和/或部段不应被这些术语所限制。这些术语可以仅用来将一个元件、部件、区域、层或部段与另一区域、层或部段区分开。除非上下文明确地指出,否则诸如“第一”、“第二”之类的术语以及其它数字术语在文中使用时并不暗示顺序或者次序。因此,以下讨论的第一元件、部件、区域、层或部段在不脱离示例实施方式的教导的情况下可以被称作第二元件、部件、区域、层或部段。Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be referred to as These terms are limited. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

为了便于描述,可以在文中使用空间相对关系术语来描述如图中示出的一个元件或者特征相对于另一元件或者特征的关系,这些相对关系术语例如为“内部”、“外部”、“内侧”、“外侧”、“下面”、“下方”、“上面”、“上方”等。这种空间相对关系术语意于包括除图中描绘的方位之外的在使用或者操作中装置的不同方位。例如,如果在图中的装置翻转,那么描述为“在其它元件或者特征下面”或者“在其它元件或者特征下方”的元件将随后定向为“在其它元件或者特征上面”或者“在其它元件或者特征上方”。因此,示例术语“在……下方”可以包括在上和在下的方位。装置可以另外定向(旋转90度或者在其它方向)并且文中使用的空间相对关系描述符相应地进行解释。For ease of description, spatial relative terms may be used herein to describe the relationship of one element or feature as shown in the figures with respect to another element or feature, such as "inner", "outer", "inner". ", "Outside", "Below", "Below", "Above", "Above", etc. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "beneath" the other elements or features. feature above". Thus, the example term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

如图1至图14所示,根据本发明的实施方式,提出了一种降噪齿轮 100,包括模数和齿数均相同的第一齿轮10和第二齿轮20,第二齿轮20 套设于第一齿轮10上,且第二齿轮20的轮齿和第一齿轮10的轮齿沿着周向方上呈错开角度设置,在图1中,降噪齿轮100的第一齿轮10的轮齿与第二齿轮20的轮齿呈错开角度设置,降噪齿轮100还包括调节组件30,调节组件30与第一齿轮10相连,并和第二齿轮20相连,调节组件30位于第一齿轮10和第二齿轮20之间,当第一齿轮10和第二齿轮20发生相对转动时,通过调节组件30使得错开角度发生变化并可以调节第一齿轮10和第二齿轮20之间的距离,也就是说,调节组件30可以使得第一齿轮 10和第二齿轮20之间相互远离或者相互靠近。As shown in Figures 1 to 14, according to an embodiment of the present invention, a noise reduction gear 100 is proposed, including a first gear 10 and a second gear 20 with the same module and number of teeth, and the second gear 20 is sleeved on On the first gear 10, and the gear teeth of the second gear 20 and the gear teeth of the first gear 10 are arranged at a staggered angle along the circumferential direction. In FIG. The gear teeth of the second gear 20 are set at a staggered angle. The noise reduction gear 100 also includes an adjustment assembly 30. The adjustment assembly 30 is connected with the first gear 10 and connected with the second gear 20. The adjustment assembly 30 is located between the first gear 10 and the second gear. Between the gears 20, when the first gear 10 and the second gear 20 rotate relative to each other, the stagger angle is changed by adjusting the assembly 30 and the distance between the first gear 10 and the second gear 20 can be adjusted, that is, The adjusting assembly 30 can make the first gear 10 and the second gear 20 move away from each other or approach each other.

本发明中的降噪齿轮100,采用调节组件30使得第一齿轮10和第二齿轮20之间互相远离,来消除齿轮间的侧隙,从而避免产生初始阶段啮合时的碰撞冲击,降低发动机产生的噪音,无需采用现有技术中的橡胶套,避免因为橡胶套反复挤压受力导致碎裂或者失去弹性,从而提高降噪齿轮 100的使用寿命。The noise-reducing gear 100 in the present invention uses an adjustment assembly 30 to make the first gear 10 and the second gear 20 far away from each other to eliminate the backlash between the gears, thereby avoiding the collision impact during the initial stage of meshing and reducing the engine generated. Noise, no need to use the rubber sleeve in the prior art, avoiding the rubber sleeve from cracking or losing elasticity due to repeated extrusion and force, thereby improving the service life of the noise reduction gear 100 .

需要解释的是,降噪齿轮100的第一齿轮10的轮齿与第二齿轮20的轮齿呈错开角度设置,当第一齿轮10和第二齿轮20相互远离时,第一齿轮10的轮齿和第二齿轮20的轮齿之间的错开角度逐渐变小,当第一齿轮 10的轮齿和第二齿轮20的轮齿之间互相重合时,错开角度为零,此时消除了加工预留的齿侧间隙,降低了发动机运动时产生的噪音。It should be explained that the teeth of the first gear 10 and the teeth of the second gear 20 of the noise-reducing gear 100 are set at an angle that is staggered. The stagger angle between the teeth of the first gear 10 and the teeth of the second gear 20 gradually becomes smaller, and when the teeth of the first gear 10 and the teeth of the second gear 20 coincide with each other, the stagger angle is zero, and the processing is eliminated at this time. The reserved tooth side clearance reduces the noise generated when the engine is running.

如图1至图4所示,此时,降噪齿轮100所处的状态为初始状态,也就是说第一齿轮10的轮齿与第二齿轮20的轮齿呈错开角度设置,也就是说,第一齿轮10朝向第二齿轮20的表面中的一部分为错开面15,当错开角度变化时,错开面15的大小也会发生变化,错开角度变大,错开面15 的面积也变大。As shown in Figures 1 to 4, at this time, the state of the noise reduction gear 100 is the initial state, that is to say, the teeth of the first gear 10 and the teeth of the second gear 20 are set at staggered angles, that is to say A part of the surface of the first gear 10 facing the second gear 20 is the staggered surface 15. When the staggered angle changes, the size of the staggered surface 15 will also change. The larger the staggered angle, the larger the area of the staggered surface 15.

这里是以第一齿轮10的部分表面作为错开面15,也可以根据需要选择第二齿轮20的部分表面作为错开面15,无论是选择第一齿轮10的表面还是选择第二齿轮20的表面,实质上是一致的,也可以采用错开的距离来衡量第一齿轮10的轮齿和第二齿轮20之间的错开程度,或者采用降噪齿轮100的厚度或者宽度等来衡量第一齿轮10的轮齿和第二齿轮20之间的错开程度。Here, the partial surface of the first gear 10 is used as the staggered surface 15, and the partial surface of the second gear 20 can also be selected as the staggered surface 15 as required, no matter whether the surface of the first gear 10 or the surface of the second gear 20 is selected, It is substantially consistent, and the staggered distance can also be used to measure the degree of stagger between the teeth of the first gear 10 and the second gear 20, or the thickness or width of the noise reduction gear 100 can be used to measure the degree of stagger of the first gear 10. The degree of offset between the gear teeth and the second gear 20.

在一些可选的实施例中,调节组件30包括第一调节部31和第二调节部32;第一调节部31设置于第一齿轮10上,第二调节部32设置于第二齿轮20上,且第一调节部31和第二调节部32相抵接。In some optional embodiments, the adjustment assembly 30 includes a first adjustment part 31 and a second adjustment part 32; the first adjustment part 31 is arranged on the first gear 10, and the second adjustment part 32 is arranged on the second gear 20 , and the first adjusting portion 31 and the second adjusting portion 32 are in contact with each other.

其中,第一齿轮10和第二齿轮20互相远离是通过第一调节部31和第二调节部32之间的相互作用来实现的。Wherein, the distance between the first gear 10 and the second gear 20 is realized through the interaction between the first adjusting part 31 and the second adjusting part 32 .

需要说明的是,第一调节部31的数量为一个或者多个,第二调节部32的数量与第一调节部31的数量相同。在本发明中,如图5所示,第一调节部31和第二调节部32的数量均为三个,且三个第一调节部31沿着第一齿轮10的齿盘的周向间隔设置,三个第二调节部32沿着第二齿轮20的齿盘的周向间隔设置,且每个第一调节部31和相应的第二调节部32对照设置,形成三个接触面,这里的间隔设置,通常选用均匀地间隔设置方式,也就是说相邻两个第一调节部31之间的角度为120度,同理,相邻两个第二调节部32之间的角度也为120度,且每个第一调节部31均有一个第二调节部32相配合。It should be noted that the number of the first adjusting part 31 is one or more, and the number of the second adjusting part 32 is the same as that of the first adjusting part 31 . In the present invention, as shown in FIG. 5 , the number of the first adjusting portion 31 and the second adjusting portion 32 are three, and the three first adjusting portions 31 are spaced apart along the circumferential direction of the chainring of the first gear 10 It is provided that three second adjusting parts 32 are arranged at intervals along the circumference of the chainring of the second gear 20, and each first adjusting part 31 is arranged in contrast to the corresponding second adjusting part 32 to form three contact surfaces, here The interval setting, usually adopts the uniform interval setting method, that is to say, the angle between two adjacent first adjustment parts 31 is 120 degrees, and similarly, the angle between two adjacent second adjustment parts 32 is also 120 degrees, and each first adjusting portion 31 is matched with a second adjusting portion 32 .

这里的第一调节部31的数量也可以是两个、四个或者更多个,对应的第二调节部32的数量与第一调节部31的数量一致,这里不再展开赘述。Here, the number of the first adjusting parts 31 may also be two, four or more, and the corresponding number of the second adjusting parts 32 is consistent with the number of the first adjusting parts 31 , which will not be repeated here.

在一些可选的实施例中,第一齿轮10设置有第一安装孔11,第一安装孔11内设置有第一紧固件40,第一调节部31固接于第一紧固件40上;第二齿轮20设置有第二安装孔21,第二安装孔21内设置有第二紧固件50,第二调节部32固接于第二紧固件50上;第一安装孔11和第二安装孔21 相对设置。In some optional embodiments, the first gear 10 is provided with a first mounting hole 11, and a first fastener 40 is disposed in the first mounting hole 11, and the first adjusting part 31 is fixedly connected to the first fastener 40. Above; the second gear 20 is provided with a second mounting hole 21, the second mounting hole 21 is provided with a second fastener 50, and the second adjusting part 32 is fixedly connected to the second fastener 50; the first mounting hole 11 It is set opposite to the second installation hole 21 .

需要说明的是,第一安装孔11的形状与第一紧固件40的形状和尺寸相互适配,如第一安装孔11呈圆形通孔,第一紧固件40呈圆柱形;第二安装孔21与第二紧固件50的形状和尺寸相互适配,如第二安装孔21呈圆形通孔,第二紧固件50呈圆柱形,当然,第一紧固件40和第二紧固件50 也可以采用其他形状,如圆台形柱状或者矩形柱状等。It should be noted that the shape of the first mounting hole 11 is compatible with the shape and size of the first fastener 40, such as the first mounting hole 11 is a circular through hole, and the first fastener 40 is cylindrical; The shape and size of the second mounting hole 21 and the second fastener 50 are adapted to each other, such as the second mounting hole 21 is a circular through hole, the second fastener 50 is cylindrical, of course, the first fastener 40 and The second fastening member 50 may also adopt other shapes, such as a cone-shaped column or a rectangular column.

另外,这里的第一紧固件40和第二紧固件50通常可以采用定位销等产品。In addition, the first fastener 40 and the second fastener 50 here can generally adopt products such as positioning pins.

此外,这里的第一调节部31上设置有通孔,以使得第一紧固件40穿过,第二调节部32上也设置有通孔,以使得第二紧固件50穿过。In addition, the first adjustment part 31 is provided with a through hole here for allowing the first fastener 40 to pass through, and the second adjustment part 32 is also provided with a through hole for the second fastener 50 to pass through.

在一些可选的实施例中,第一调节部31为第一楔形块,第一楔形块包括第一工作面311;第二调节部32为第二楔形块,第二楔形块包括第二工作面321;第一工作面311和第二工作面321相对设置。第一紧固件40 穿过第一工作面311,第二紧固件50穿过第二工作面321。In some optional embodiments, the first adjusting part 31 is a first wedge block, and the first wedge block includes a first working surface 311; the second adjusting part 32 is a second wedge block, and the second wedge block includes a second working surface Surface 321; the first working surface 311 and the second working surface 321 are set opposite to each other. The first fastener 40 passes through the first working surface 311 , and the second fastener 50 passes through the second working surface 321 .

其中,第一工作面311和第二工作面321为第一调节部31和第二调节部32之间的接触部分,通过第一工作面311和第二工作面321之间接触面积的变动,实现第一齿轮10和第二齿轮20之间的距离调整,当第一齿轮10和第二齿轮20之间的接触面积最大时,第一齿轮10和第二齿轮20 之间的距离最小,当第一齿轮10和第二齿轮20的接触面积最小时,第二齿轮20和第二齿轮20之间的距离最大。Wherein, the first working surface 311 and the second working surface 321 are the contact parts between the first adjusting part 31 and the second adjusting part 32, through the variation of the contact area between the first working surface 311 and the second working surface 321, Realize the distance adjustment between the first gear 10 and the second gear 20, when the contact area between the first gear 10 and the second gear 20 is the largest, the distance between the first gear 10 and the second gear 20 is the smallest, when When the contact area between the first gear 10 and the second gear 20 is the smallest, the distance between the second gear 20 and the second gear 20 is the largest.

在一些可选的实施例中,第一工作面311和第二工作面321为互相配合的工作面,第一工作面311可以为凸面,第二工作面321为适配的凹面;或者第一工作面311为凹面,第二工作面321为适配的凸面。In some optional embodiments, the first working surface 311 and the second working surface 321 are working surfaces that cooperate with each other, the first working surface 311 may be a convex surface, and the second working surface 321 may be a suitable concave surface; The working surface 311 is a concave surface, and the second working surface 321 is a matching convex surface.

为了加工简单,可以将第一工作面311和第二工作面321均设置为斜面,也就是说,第一工作面311和第二工作面321均为倾斜的平面,在第一齿轮10和第二齿轮20发生转动时,使得第一工作面311和第二工作面 321之间产生相对的转动。For simple processing, both the first working surface 311 and the second working surface 321 can be set as inclined planes, that is to say, the first working surface 311 and the second working surface 321 are inclined planes, and the first gear 10 and the second working surface When the second gear 20 rotates, relative rotation occurs between the first working surface 311 and the second working surface 321 .

在一些可选的实施例中,第一楔形块还包括第一配合面312,第一配合面312与第一齿轮10的圆弧部配合,第一齿轮10的圆弧部称为第一圆弧部14,第二楔形块还包括第二配合面322,第二配合面322与第二齿轮 20的圆弧部配合,第二齿轮20的圆弧部和第一圆弧部14的设置方式相同,这里不对第二齿轮20的圆弧部进行展开赘述。In some optional embodiments, the first wedge block further includes a first mating surface 312, and the first mating surface 312 is mated with the arc portion of the first gear 10, and the arc portion of the first gear 10 is called the first circle The arc portion 14, the second wedge block also includes a second mating surface 322, the second mating surface 322 cooperates with the arc portion of the second gear 20, the arrangement of the arc portion of the second gear 20 and the first arc portion 14 Similarly, the circular arc portion of the second gear 20 will not be elaborated here.

从图5、图6和图7中可以看出,第一圆弧部14呈圆环形设置,第一配合面312与第一圆弧部14的内弧面接触,从而方便实现第一调节部31 的安装。同理,第二齿轮20的圆弧部也呈圆弧形设置,第二配合面322与第二齿轮20的圆弧部的内弧面接触,从而方便第二调节部32的安装。It can be seen from Fig. 5, Fig. 6 and Fig. 7 that the first arc portion 14 is arranged in a circular shape, and the first mating surface 312 is in contact with the inner arc surface of the first arc portion 14, thereby facilitating the first adjustment Part 31 of the installation. Similarly, the arc portion of the second gear 20 is also arranged in an arc shape, and the second mating surface 322 is in contact with the inner arc surface of the arc portion of the second gear 20 , thereby facilitating the installation of the second adjusting portion 32 .

需要说明的是,这里的第一配合面312和第二配合面322均为弧形面,且分别与相配合的圆弧部的弧度和尺寸一致,也就是说,第一配合面312 的弧度与第一圆弧部14的弧度相同,且半径相同。It should be noted that the first mating surface 312 and the second mating surface 322 here are both arc-shaped surfaces, and are respectively consistent with the radian and size of the matching arc portion, that is, the arc of the first mating surface 312 The radian is the same as that of the first arc portion 14, and the radius is the same.

在一些可选的实施例中,第一齿轮10的齿盘上环绕第一轴孔13设有凸台12,第二齿轮20套设于第一齿轮10的凸台12上,并能够相对凸台 12转动。通过设置凸台12,可以实现第二齿轮20与第一齿轮10之间的连接。In some optional embodiments, the toothed disc of the first gear 10 is provided with a boss 12 around the first shaft hole 13, and the second gear 20 is sleeved on the boss 12 of the first gear 10, and can be opposed to the boss. Table 12 rotates. The connection between the second gear 20 and the first gear 10 can be realized by setting the boss 12 .

需要说明的是,第一轴孔13贯穿凸台12设置,且第一轴孔13的轴向与凸台12的轴向在一条直线上,方便降噪齿轮100的安装。It should be noted that the first shaft hole 13 is provided through the boss 12 , and the axial direction of the first shaft hole 13 is aligned with the axial direction of the boss 12 , which facilitates the installation of the noise reducing gear 100 .

在一些可选的实施例中,降噪齿轮100还包括复位件60;凸台12上设置有凹槽121,复位件60设置于凹槽121中,复位件60具有预紧力,通过预紧力将第一齿轮10和第二齿轮20压紧。复位件60为蝶形弹簧,也可以是其他形状的弹簧,只要能够实现复位即可。In some optional embodiments, the noise reduction gear 100 also includes a reset member 60; the boss 12 is provided with a groove 121, the reset member 60 is arranged in the groove 121, and the reset member 60 has a pre-tightening force. The force compresses the first gear 10 and the second gear 20 . The reset member 60 is a Belleville spring, and can also be a spring of other shapes, as long as the reset can be realized.

通过设置复位件60,可以使得降噪齿轮100接收到的力矩为零时,通过复位件60压紧第二齿轮20,使得第二调节部32和第一调节部31旋转回复到初始的状态,使得第一齿轮10和第二齿轮20之间的距离变小,且第一齿轮10的轮齿和第二齿轮20的轮齿之间的错开角度变大。By setting the reset member 60, when the torque received by the noise reduction gear 100 is zero, the second gear 20 is pressed by the reset member 60, so that the rotation of the second adjustment part 32 and the first adjustment part 31 returns to the initial state, The distance between the first gear 10 and the second gear 20 becomes smaller, and the stagger angle between the teeth of the first gear 10 and the teeth of the second gear 20 becomes larger.

需要说明的是,这里的凹槽121整体呈圆环形,截面形状呈U形结构,使得复位件60的部分位于凹槽121中。It should be noted that the groove 121 here has a circular shape as a whole and a U-shaped cross-section, so that part of the reset member 60 is located in the groove 121 .

在一些可选的实施例中,第一齿轮10还包括第一轴孔13,第一轴孔 13呈圆形通孔,第二齿轮20包括第二轴孔22,第二轴孔22呈圆形通孔,其中,齿轮设置有轴孔是现有技术中的常见结构,这里不再进行展开赘述。In some optional embodiments, the first gear 10 further includes a first shaft hole 13, the first shaft hole 13 is a circular through hole, the second gear 20 includes a second shaft hole 22, and the second shaft hole 22 is a circular through hole. Shaped through holes, wherein the gear is provided with a shaft hole is a common structure in the prior art, and will not be described here.

需要说明的是,第二齿轮20的第二轴孔22的直径与凸台12的外径相适配,使得第二齿轮20的内环形面与凸台12的外表面接触。It should be noted that the diameter of the second shaft hole 22 of the second gear 20 is adapted to the outer diameter of the boss 12 , so that the inner annular surface of the second gear 20 is in contact with the outer surface of the boss 12 .

下面以三个第一紧固件40和三个第二紧固件50为例,详细阐述本发明中的降噪齿轮100的组装方法,具体为:Taking three first fasteners 40 and three second fasteners 50 as an example, the assembly method of the noise reduction gear 100 in the present invention will be described in detail below, specifically:

S1、将每个第一紧固件40分别安装在第一调节部31的通孔内,将每个第二紧固件50安装在第二调节部32的通孔内;S1. Install each first fastener 40 in the through hole of the first adjustment part 31, and install each second fastener 50 in the through hole of the second adjustment part 32;

这里的第一紧固件40和第一调节部31之间为过盈装配方式,第二紧固件50和第二调节部32之间为过盈装置方式。Here, the first fastener 40 and the first adjustment part 31 are in the form of an interference fit, and the relationship between the second fastener 50 and the second adjustment part 32 is in the form of an interference device.

S2、将带有第一调节部31的第一紧固件40分别装入第一安装孔11 内,将带有第二调节部32的第二紧固件50分别转入第二安装孔21内;S2. Put the first fasteners 40 with the first adjustment parts 31 into the first installation holes 11 respectively, and transfer the second fasteners 50 with the second adjustment parts 32 into the second installation holes 21 respectively Inside;

将第二齿轮20与第二齿轮20装配在一起,使得三个第一调节部31 的第一工作面311分别和三个第二调节部32的第二工作面321配合;Assembling the second gear 20 and the second gear 20 together, so that the first working surfaces 311 of the three first adjusting parts 31 respectively cooperate with the second working surfaces 321 of the three second adjusting parts 32;

S3、将复位件60安装在第一齿轮10的凹槽121内,装配后的降噪齿轮100如图1至图4中所示,此时的降噪齿轮100在自由状态下,第一齿轮10的轮齿和第二齿轮20的轮齿为错开角度设置。S3. Install the reset member 60 in the groove 121 of the first gear 10. The assembled noise reduction gear 100 is shown in FIGS. The gear teeth of 10 and the gear teeth of the second gear 20 are set at an angle of stagger.

上面过程中的S1和S2不代表先后顺序,也可以将顺序S1和S2互换顺序。S1 and S2 in the above process do not represent the sequence, and the sequence S1 and S2 can also be interchanged.

在S2中,装配好的第一调节部31的第一配合面312与第一齿轮10 的第一圆弧部14接触,装配好的第二调节部32的第二配合面322与第二齿轮20的圆弧部接触。In S2, the first matching surface 312 of the assembled first adjusting part 31 is in contact with the first circular arc part 14 of the first gear 10, and the second matching surface 322 of the assembled second adjusting part 32 is in contact with the second gear. 20 arc contact.

本发明中的降噪齿轮100的具体工作过程为:The specific working process of noise reduction gear 100 among the present invention is:

将装配好的降噪齿轮100装配到发动机上后,使得降噪齿轮100与传动齿轮啮合,当降噪齿轮100传递扭矩时,第一齿轮10和第二齿轮20的齿面均受压,第一齿轮10和第二齿轮20之间发生相对转动,第一齿轮10 的轮齿和第二齿轮20的轮齿错开的角度变小至重合,同时过盈装配在第一齿轮10上的第一调节部31随着第一齿轮10转动,以及过盈装配在第二齿轮20上的第二调节部32随着第二齿轮20转动,由于第一调节部31和第二调节部32之间的接触面为斜面,在第一调节部31和第二调节部32错开时,使得第一齿轮10和第二齿轮20之间产生一个轴向的相对位移,第一齿轮10和第二齿轮20之间的距离变大,复位件60受力变形,弹力增加,此时的状态如图13和图14所示。After assembling the assembled noise reduction gear 100 on the engine, the noise reduction gear 100 is meshed with the transmission gear. When the noise reduction gear 100 transmits torque, both the tooth surfaces of the first gear 10 and the second gear 20 are under pressure. Relative rotation occurs between the first gear 10 and the second gear 20, and the staggered angle between the gear teeth of the first gear 10 and the second gear 20 becomes smaller until they overlap. The adjustment part 31 rotates with the first gear 10, and the second adjustment part 32, which is interference fit on the second gear 20, rotates with the second gear 20, due to the gap between the first adjustment part 31 and the second adjustment part 32 The contact surface is an inclined surface. When the first adjusting part 31 and the second adjusting part 32 are staggered, an axial relative displacement occurs between the first gear 10 and the second gear 20, and the first gear 10 and the second gear 20 The distance between them becomes larger, the reset member 60 is deformed by force, and the elastic force increases, and the state at this time is shown in Fig. 13 and Fig. 14 .

当降噪齿轮100接收到的力矩变小或者为零时,通过复位件60压紧第二齿轮20,使得第二调节部32和第一调节部31发生相对的转动,使得第一齿轮10和第二齿轮20之间的距离变小,且第一齿轮10的轮齿和第二齿轮20的轮齿之间的错开角度变大,恢复到初始的状态,也就是图4中所示的状态。When the torque received by the noise reduction gear 100 becomes smaller or zero, the second gear 20 is pressed by the reset member 60, so that the second adjustment part 32 and the first adjustment part 31 are relatively rotated, so that the first gear 10 and the first adjustment part 31 are relatively rotated. The distance between the second gears 20 becomes smaller, and the stagger angle between the teeth of the first gear 10 and the teeth of the second gear 20 becomes larger, returning to the original state, which is the state shown in Figure 4 .

当降噪齿轮100再次传动扭矩时,重复上面的过程,从而实现对降噪齿轮100的多次使用,在每次使用过程中,都可以使得第一齿轮10的轮齿和第二齿轮20的轮齿之间的错开角度变小,第一齿轮10和第二齿轮20之间的距离变大,消除了加工预留的齿侧间隙,降低了发动机运动时产生的噪音,提高降噪齿轮100的使用寿命。When the noise reduction gear 100 transmits torque again, repeat the above process, thereby realizing multiple uses of the noise reduction gear 100, in each use process, the gear teeth of the first gear 10 and the teeth of the second gear 20 can be made The stagger angle between the gear teeth becomes smaller, and the distance between the first gear 10 and the second gear 20 becomes larger, which eliminates the tooth side clearance reserved for processing, reduces the noise generated when the engine is running, and improves the noise reduction gear 100. service life.

本发明中的复位件60、第一调节部31和第二调节部32可以采用强度较大的金属件制成,如采用耐热钢等材质,使用寿命长,可反复承受冲击,并耐高温和耐油,从而提高降噪齿轮100的使用寿命。The reset member 60, the first adjustment part 31 and the second adjustment part 32 in the present invention can be made of stronger metal parts, such as heat-resistant steel and other materials, which have a long service life, can withstand repeated impacts, and are resistant to high temperatures And oil resistance, thereby improving the service life of the noise reduction gear 100.

本发明实施例的第二方面,提供了一种发动机,包括上面实施例中所提到的降噪齿轮100。The second aspect of the embodiments of the present invention provides an engine, including the noise reduction gear 100 mentioned in the above embodiments.

以上所述,仅为本发明较佳的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到的变化或替换,都应涵盖在本发明的保护范围之内。因此,本发明的保护范围应以权利要求的保护范围为准。The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed in the present invention can easily think of changes or Replacement should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (10)

1.一种降噪齿轮,包括模数和齿数均相同的第一齿轮和第二齿轮,所述第二齿轮套设于所述第一齿轮上,且所述第二齿轮的轮齿和所述第一齿轮的轮齿在周向上呈错开角度设置,其特征在于,所述降噪齿轮还包括:1. A noise reduction gear, comprising a first gear and a second gear with the same module and number of teeth, the second gear is sleeved on the first gear, and the teeth of the second gear and the The gear teeth of the first gear are arranged at a staggered angle in the circumferential direction, and it is characterized in that the noise reduction gear also includes: 调节组件,所述调节组件与所述第一齿轮相连,且所述调节组件与所述第二齿轮相连;an adjustment assembly, the adjustment assembly is connected to the first gear, and the adjustment assembly is connected to the second gear; 当所述第一齿轮和所述第二齿轮发生相对转动时,所述调节组件设置成调节所述错开角度,以及调节所述第一齿轮和所述第二齿轮之间的距离。When the first gear and the second gear rotate relative to each other, the adjustment assembly is configured to adjust the stagger angle and adjust the distance between the first gear and the second gear. 2.根据权利要求1所述的降噪齿轮,其特征在于,所述调节组件包括第一调节部和第二调节部;2. The noise reduction gear according to claim 1, characterized in that, the adjustment assembly comprises a first adjustment part and a second adjustment part; 所述第一调节部设置于所述第一齿轮上,所述第二调节部设置于所述第二齿轮上,且所述第一调节部和所述第二调节部相抵接。The first adjusting part is arranged on the first gear, the second adjusting part is arranged on the second gear, and the first adjusting part and the second adjusting part abut against each other. 3.根据权利要求2所述的降噪齿轮,其特征在于,所述第一齿轮设置有第一安装孔,所述第一安装孔内设置有第一紧固件,所述第一调节部固接于所述第一紧固件上;3. The noise reduction gear according to claim 2, wherein the first gear is provided with a first mounting hole, a first fastener is disposed in the first mounting hole, and the first adjusting part fixed on the first fastener; 所述第二齿轮设置有第二安装孔,所述第二安装孔内设置有第二紧固件,所述第二调节部固接于所述第二紧固件上;The second gear is provided with a second mounting hole, a second fastener is disposed in the second mounting hole, and the second adjusting part is fixedly connected to the second fastener; 所述第一安装孔和所述第二安装孔相对设置。The first mounting hole is opposite to the second mounting hole. 4.根据权利要求2或者3所述的降噪齿轮,其特征在于,所述第一调节部为第一楔形块,所述第一楔形块包括第一工作面;4. The noise reduction gear according to claim 2 or 3, characterized in that, the first adjusting part is a first wedge block, and the first wedge block includes a first working surface; 所述第二调节部为第二楔形块,所述第二楔形块包括第二工作面;The second adjusting part is a second wedge block, and the second wedge block includes a second working surface; 所述第一工作面和所述第二工作面相抵接。The first working surface abuts against the second working surface. 5.根据权利要求4所述的降噪齿轮,其特征在于,所述第一工作面和所述第二工作面均为斜面。5 . The noise reduction gear according to claim 4 , wherein both the first working surface and the second working surface are inclined surfaces. 6.根据权利要求4所述的降噪齿轮,其特征在于,所述第一楔形块还包括第一配合面,所述第一配合面与所述第一齿轮的圆弧部配合;6. The noise reduction gear according to claim 4, wherein the first wedge block further comprises a first mating surface, and the first mating surface is mated with the arc portion of the first gear; 所述第二楔形块还包括第二配合面,所述第二配合面与所述第二齿轮的圆弧部配合。The second wedge block also includes a second matching surface, and the second matching surface is matched with the arc portion of the second gear. 7.根据权利要求3所述的降噪齿轮,其特征在于,所述第一齿轮的齿盘上环绕第一轴孔设有凸台,所述第二齿轮套设于所述凸台上并能够相对所述凸台转动。7. The noise-reducing gear according to claim 3, characterized in that, the tooth disc of the first gear is provided with a boss around the first shaft hole, and the second gear is sleeved on the boss and Can be rotated relative to the boss. 8.根据权利要求7所述的降噪齿轮,其特征在于,所述调节组件还包括复位件;8. The noise reducing gear according to claim 7, characterized in that, the adjustment assembly further comprises a reset member; 所述凸台上设置有凹槽,所述复位件设置于所述凹槽中;A groove is arranged on the boss, and the reset member is arranged in the groove; 所述复位件具有预紧力,通过所述预紧力将所述第一齿轮和所述第二齿轮压紧。The reset member has a pre-tightening force, and the first gear and the second gear are compressed by the pre-tightening force. 9.根据权利要求8所述的降噪齿轮,其特征在于,所述复位件为蝶形弹簧。9. The noise-reducing gear according to claim 8, wherein the reset member is a Belleville spring. 10.一种发动机,其特征在于,包括如权利要求1至9中任一项所述的降噪齿轮。10. An engine, characterized by comprising the noise reduction gear according to any one of claims 1 to 9.
CN202211260220.9A 2022-10-14 2022-10-14 Noise reduction gear and engine Pending CN115750727A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102588559A (en) * 2012-02-13 2012-07-18 北京波尔通导科技有限公司 Gapless gear transmission device and method for removing gear transmission gap
CN104633053A (en) * 2014-12-25 2015-05-20 惠州市华阳多媒体电子有限公司 Gear assembly capable of eliminating transmission clearance
CN105864396A (en) * 2016-05-01 2016-08-17 保定标正机床有限责任公司 Gear clearance removing mechanism
CN108825755A (en) * 2018-06-13 2018-11-16 中国北方发动机研究所(天津) A kind of double-layer gear structure with adjusting backlash function

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102588559A (en) * 2012-02-13 2012-07-18 北京波尔通导科技有限公司 Gapless gear transmission device and method for removing gear transmission gap
CN104633053A (en) * 2014-12-25 2015-05-20 惠州市华阳多媒体电子有限公司 Gear assembly capable of eliminating transmission clearance
CN105864396A (en) * 2016-05-01 2016-08-17 保定标正机床有限责任公司 Gear clearance removing mechanism
CN108825755A (en) * 2018-06-13 2018-11-16 中国北方发动机研究所(天津) A kind of double-layer gear structure with adjusting backlash function

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