WO2020087942A1 - Novel gear - Google Patents

Novel gear Download PDF

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Publication number
WO2020087942A1
WO2020087942A1 PCT/CN2019/091791 CN2019091791W WO2020087942A1 WO 2020087942 A1 WO2020087942 A1 WO 2020087942A1 CN 2019091791 W CN2019091791 W CN 2019091791W WO 2020087942 A1 WO2020087942 A1 WO 2020087942A1
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WIPO (PCT)
Prior art keywords
tooth
gear
shaped protrusions
gear body
tooth surface
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PCT/CN2019/091791
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French (fr)
Chinese (zh)
Inventor
谭永胜
谭永利
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金华市宇辰粉末冶金有限公司
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Publication of WO2020087942A1 publication Critical patent/WO2020087942A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/17—Toothed wheels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/06—Use of materials; Use of treatments of toothed members or worms to affect their intrinsic material properties

Definitions

  • the invention belongs to the technical field of gear structure, and particularly refers to a new type of gear.
  • Gears are one of the necessary parts in mechanical transmission, especially bevel gears, which are more widely used and applied.
  • the bevel gear is used to transmit the motion and power between the two intersecting shafts.
  • the angle between the two shafts of the bevel gear is equal to 90 °.
  • the current bevel gear production has the following problems: a.
  • the processing cost of the bevel gear is relatively high, the traditional milling and planing process, the product raw material loss rate is high, and the processing surface will have processing damage, which requires more later The process is repaired, the processing is complicated, and waste products are easily generated during the processing;
  • b In order to overcome the problem of raw material loss, the powder metallurgy processing method is used, but the strength of the cone teeth is difficult to be guaranteed, and the use requirements do not meet the standards and cannot be effectively Mass production.
  • the purpose of the present invention is to provide a new type of gear with a simple and stable structure.
  • a new type of gear includes a gear body.
  • One end of the gear body is provided with uniformly distributed tooth-shaped protrusions.
  • Several toothed protrusions form a toothed surface.
  • the profiling tooth surface of the profiling tooth surface is also composed of uniformly distributed tooth-shaped protrusions, and the protruding tooth surface of the profiling tooth surface is misaligned with the tooth-shaped protrusions of the tooth surface.
  • the tooth-shaped protrusions are oblique teeth, and the tooth-shaped surfaces are tapered tooth-shaped surfaces.
  • the tooth-shaped protrusions of the tooth-shaped surfaces and the tooth-shaped protrusions of the profiled tooth surfaces continuously increase from the outside to the inside.
  • the tooth-shaped protrusions of the profile tooth surface and the tooth-shaped protrusions of the tooth surface are arranged in parallel.
  • the gear body is recessed inward at the middle of one end of the toothed surface to form a recessed portion, and at least two recessed holes are provided in the recessed portion.
  • the three concave holes are included, and the three concave holes are evenly distributed in the concave portion.
  • the gear body is die-cast by powder metallurgy process.
  • the gear body is provided with a shaft hole in the middle, and the gear body is provided with an extension at one end of the profile tooth surface.
  • the gear body of the present invention is die-cast using powder metallurgy technology to achieve efficient use of raw materials; in order to fundamentally solve the strength of the tooth surface, a profiled tooth surface is provided on the opposite side of the tooth surface, and the profiled teeth The tooth-shaped protrusions of the surface are misaligned with the tooth-shaped protrusions of the toothed surface.
  • This structure can ensure that the actual thickness between the toothed surface and the profiled tooth surface is guaranteed.
  • the position of the toothed surface The powder that can be pressed has a higher density, which directly improves the working strength and hardness of the tooth surface.
  • the present invention is a bevel gear, and the tooth-shaped protrusions of the tooth-shaped surface and the tooth-shaped protrusions of the profiled tooth surface continuously increase from the outside to the inside, in fact, the profiled tooth surface is a dislocated gear surface ,
  • the tooth-shaped protrusions of the profiling tooth surface and the tooth-shaped protrusions of the tooth surface are arranged in parallel, the fundamental reason for setting the profiling tooth surface is that in the process of powder metallurgy, the thickness between the gear surface and the profiling tooth surface is avoided Unevenness, to ensure the powder density of the tooth surface, to ensure the working strength and hardness of the tooth surface.
  • the gear body of the present invention is recessed inward at the middle of one end of the toothed surface to form a recessed portion.
  • the recessed portion can remove the problem of stress concentration and save raw materials.
  • the recessed portion is provided with at least two recessed holes, preferably three The concave hole is used in the actual use process to perform an emergency stop on the gear main body to ensure the stability of the structure.
  • a shaft hole is provided in the middle of the gear body of the present invention.
  • a keyway can be added to the shaft hole according to actual requirements.
  • the shaft hole is used for an external rotation source, and the gear body is provided with an extension at one end of the profiling tooth surface. This extension is used to increase the strength of the gear body.
  • the present invention limits the thickness of the position of the tooth surface, so the connection position with the external rotation source will also be reduced accordingly, so through the integral extension Compensation is carried out to ensure the stability of the structure.
  • Figure 1 is one of the structural diagrams of the present invention.
  • Figure 2 is the second structural diagram of the present invention.
  • FIG. 3 is a schematic diagram of the internal structure of the present invention.
  • Figure 4 is the third structural diagram of the present invention.
  • Figure 5 is the fourth structural diagram of the present invention.
  • FIG. 6 is a reference diagram of the use state of the present invention.
  • FIGS. 1-6 The present invention will be further described below with specific embodiments in conjunction with the drawings, as shown in FIGS. 1-6:
  • a new type of gear includes a gear body 1.
  • the gear body 1 is die-cast by powder metallurgy to achieve efficient use of raw materials.
  • One end of the gear body 1 is provided with uniformly distributed tooth-shaped protrusions 12, and several tooth-shaped protrusions
  • the teeth 12 form a toothed surface a.
  • the other end of the gear body 1 is provided with a profiled tooth surface b adapted to the toothed surface a.
  • the profiled tooth surface b is also composed of uniformly distributed tooth-shaped protrusions 13, Furthermore, the tooth-shaped protrusions 13 of the profiling tooth surface b are misaligned with the tooth-shaped protrusions 12 of the tooth surface a.
  • a profiled toothed surface b is provided on the opposite side of the toothed surface a, and the toothed protrusion 13 of the profiled toothed surface b and the toothed convexity of the toothed surface a Since the 12 phases are misaligned, this structure can ensure that the actual thickness between the tooth surface a and the profile tooth surface b is guaranteed.
  • the powder at the position of the tooth surface a can be compressed at a higher density, thereby Directly improve the working strength and hardness of the tooth profile a.
  • the tooth-shaped protrusions 12, 13 are oblique teeth, and the tooth-shaped surface a is a tapered tooth-shaped surface.
  • the tooth-shaped protrusions 12 of the tooth-shaped surface a and the tooth-shaped protrusions 13 of the profiled tooth surface b are both from From outside to inside, it becomes higher continuously.
  • the profiled tooth surface b is a misaligned gear surface a.
  • the toothed protrusions 13 of the profiled tooth surface b and the toothed protrusions 12 of the toothed surface a are arranged in parallel.
  • the basic reason of surface b is: in the process of powder metallurgy, to avoid uneven thickness between gear surface a and profile tooth surface b, to ensure the powder density of tooth surface a position, to ensure the working strength and hardness of tooth surface a .
  • the gear body 1 is recessed inward at the middle of one end of the toothed surface a to form a recessed portion 2.
  • the recessed portion 2 can remove the problem of stress concentration and save raw materials.
  • the recessed portion 2 is provided with at least two recessed holes 21, preferably There are three concave holes 21, and the concave holes 21 are used for the emergency stop of the gear body 1 during actual use to ensure the stability of the structure.
  • a shaft hole 14 is provided in the middle of the gear body 1, and a key slot can be added in the shaft hole 14 according to actual requirements.
  • the shaft hole 14 is used for external rotation source, and the gear body 1 is provided with an extension at one end of the profiling tooth surface b 11. It is preferable that the outer diameter of the extension section 11 is smaller than the minimum inner diameter of the toothed surface a.
  • the extension section 11 is used to increase the strength of the gear body 1. In order to improve the strength of the toothed surface a in the present invention, the position of the toothed surface a The thickness is limited, so the connection position with the external rotation source will be correspondingly reduced. Therefore, the integral extension 11 is used for compensation to ensure the stability of the structure.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Gears, Cams (AREA)

Abstract

The present invention relates to the technical field of gear structures, and particularly relates to a novel gear. The novel gear comprises a gear body; uniformly distributed toothlike protrusions are disposed at one end of the gear body; the multiple toothlike protrusions form a toothed surface, and a profiling tooth surface matching the toothed surface is provided at the other end of the gear body. Moreover, the profiling tooth surface is also formed by uniformly distributed toothlike protrusions, and the toothlike protrusions of the profiling tooth surface are in dislocation with the toothlike protrusions of the toothlike surface. The present invention provides a novel gear which is simple and stable in structure.

Description

一种新型齿轮A new type of gear 技术领域Technical field
本发明属于齿轮结构技术领域，特指一种新型齿轮。The invention belongs to the technical field of gear structure, and particularly refers to a new type of gear.
背景技术Background technique
齿轮是机械传动中的必要零部件之一，尤其是锥齿轮，应用以及适用场合更为广泛。锥齿轮用来传递两相交轴之间的运动和动力，在一般机械中，锥齿轮两轴之间的交角等于90°。但是，现在的锥齿轮生产存在以下几点难题：a.锥齿轮的加工成本较高，传统铣与刨的加工工艺，产品原料的损耗率较高，而且加工表面会有加工损伤，需要后期多道工艺进行修复，加工复杂，在加工过程中易产生废品；b.为了克服原料损耗的问题，采用粉末冶金的加工方式，但是锥齿的强度很难得到保障，使用要求不达标，无法进行有效的批量生产。Gears are one of the necessary parts in mechanical transmission, especially bevel gears, which are more widely used and applied. The bevel gear is used to transmit the motion and power between the two intersecting shafts. In general machinery, the angle between the two shafts of the bevel gear is equal to 90 °. However, the current bevel gear production has the following problems: a. The processing cost of the bevel gear is relatively high, the traditional milling and planing process, the product raw material loss rate is high, and the processing surface will have processing damage, which requires more later The process is repaired, the processing is complicated, and waste products are easily generated during the processing; b. In order to overcome the problem of raw material loss, the powder metallurgy processing method is used, but the strength of the cone teeth is difficult to be guaranteed, and the use requirements do not meet the standards and cannot be effectively Mass production.
发明内容Summary of the invention
本发明的目的是提供一种结构简单且稳定的新型齿轮。The purpose of the present invention is to provide a new type of gear with a simple and stable structure.
本发明的目的是这样实现的：The purpose of the present invention is achieved as follows:
一种新型齿轮，包括齿轮主体，所述齿轮主体的一端设置有均匀分布的齿状凸起，若干齿状凸起形成齿形面，齿轮主体的另一端设置有与所述齿形面相适配的仿形齿面，仿形齿面也由均匀分布的齿状凸起构成，并且，仿形齿面的齿状凸起与齿形面的齿状凸起相错位。A new type of gear includes a gear body. One end of the gear body is provided with uniformly distributed tooth-shaped protrusions. Several toothed protrusions form a toothed surface. The profiling tooth surface of the profiling tooth surface is also composed of uniformly distributed tooth-shaped protrusions, and the protruding tooth surface of the profiling tooth surface is misaligned with the tooth-shaped protrusions of the tooth surface.
所述齿状凸起为斜齿，齿形面为锥形齿形面，所述齿形面的齿状凸起和仿形齿面的齿状凸起均自外而内连续变高。The tooth-shaped protrusions are oblique teeth, and the tooth-shaped surfaces are tapered tooth-shaped surfaces. The tooth-shaped protrusions of the tooth-shaped surfaces and the tooth-shaped protrusions of the profiled tooth surfaces continuously increase from the outside to the inside.
所述仿形齿面的齿状凸起和齿形面的齿状凸起平行设置。The tooth-shaped protrusions of the profile tooth surface and the tooth-shaped protrusions of the tooth surface are arranged in parallel.
所述齿轮主体于齿形面一端中部向内凹陷形成凹陷部，凹陷部内设置有至少两个凹孔。The gear body is recessed inward at the middle of one end of the toothed surface to form a recessed portion, and at least two recessed holes are provided in the recessed portion.
包括三个所述凹孔，三个凹孔均匀分布在凹陷部内。The three concave holes are included, and the three concave holes are evenly distributed in the concave portion.
所述齿轮主体通过粉末冶金的工艺压铸而成。The gear body is die-cast by powder metallurgy process.
所述齿轮主体中部设置有轴孔，并且齿轮主体于仿形齿面一端设置有延伸段。The gear body is provided with a shaft hole in the middle, and the gear body is provided with an extension at one end of the profile tooth surface.
本发明相比现有技术突出且有益的技术效果是：Compared with the prior art, the present invention has outstanding and beneficial technical effects as follows:
1、本发明的齿轮主体采用粉末冶金的工艺压铸，实现原料的高效利用；为了从根本解决齿形面的强度，于齿形面的相背一侧设置有仿形齿面，并且仿形齿面的齿状凸起与齿形面的齿状凸起相错位，这样的结构可以保证齿形面与仿形齿面之间的实际厚度得以保障，在粉末冶金的过程中，齿形面位置的粉末可以压制的密度更高，从而直接提升齿形面的工作强度及硬度。1. The gear body of the present invention is die-cast using powder metallurgy technology to achieve efficient use of raw materials; in order to fundamentally solve the strength of the tooth surface, a profiled tooth surface is provided on the opposite side of the tooth surface, and the profiled teeth The tooth-shaped protrusions of the surface are misaligned with the tooth-shaped protrusions of the toothed surface. This structure can ensure that the actual thickness between the toothed surface and the profiled tooth surface is guaranteed. In the process of powder metallurgy, the position of the toothed surface The powder that can be pressed has a higher density, which directly improves the working strength and hardness of the tooth surface.
2、本发明为锥形齿轮，而且所述齿形面的齿状凸起和仿形齿面的齿状凸起均自外而内连续变高，实际上仿形齿面为错位的齿轮面，仿形齿面的齿状凸起和齿形面的齿状凸起平行设置，设置仿形齿面的根本原因在于：在粉末冶金的过程中，避免齿轮面和仿形齿面之间厚度不均，保证齿形面位置的粉末密度，保障齿形面的工作强度及硬度。2. The present invention is a bevel gear, and the tooth-shaped protrusions of the tooth-shaped surface and the tooth-shaped protrusions of the profiled tooth surface continuously increase from the outside to the inside, in fact, the profiled tooth surface is a dislocated gear surface , The tooth-shaped protrusions of the profiling tooth surface and the tooth-shaped protrusions of the tooth surface are arranged in parallel, the fundamental reason for setting the profiling tooth surface is that in the process of powder metallurgy, the thickness between the gear surface and the profiling tooth surface is avoided Unevenness, to ensure the powder density of the tooth surface, to ensure the working strength and hardness of the tooth surface.
3、本发明所述齿轮主体于齿形面一端中部向内凹陷形成凹陷部，凹陷部既可以去除应力集中的问题，又节省了原材料，凹陷部内设置有至少两个凹孔，优选为三个凹孔，凹孔用于实际使用过程中，进行急停所述齿轮主体，保证结构的稳定性。3. The gear body of the present invention is recessed inward at the middle of one end of the toothed surface to form a recessed portion. The recessed portion can remove the problem of stress concentration and save raw materials. The recessed portion is provided with at least two recessed holes, preferably three The concave hole is used in the actual use process to perform an emergency stop on the gear main body to ensure the stability of the structure.
4、本发明的所述齿轮主体中部设置有轴孔，轴孔中可以根据实际使用的要求添加键槽，该轴孔用于外接转动源，并且齿轮主体于仿形齿面一端设置有延 伸段，该延伸段用于提升齿轮主体的强度，本发明为了提升齿形面的强度，对齿形面位置的厚度进行限定，因此与外接转动源的连接位置也会相应的减少，因此通过一体的延伸段进行补偿，保证结构的稳定性。4. A shaft hole is provided in the middle of the gear body of the present invention. A keyway can be added to the shaft hole according to actual requirements. The shaft hole is used for an external rotation source, and the gear body is provided with an extension at one end of the profiling tooth surface. This extension is used to increase the strength of the gear body. In order to increase the strength of the tooth surface, the present invention limits the thickness of the position of the tooth surface, so the connection position with the external rotation source will also be reduced accordingly, so through the integral extension Compensation is carried out to ensure the stability of the structure.
附图说明BRIEF DESCRIPTION
图1是本发明的结构示意图之一；Figure 1 is one of the structural diagrams of the present invention;
图2是本发明的结构示意图之二；Figure 2 is the second structural diagram of the present invention;
图3是本发明的内部结构示意图；3 is a schematic diagram of the internal structure of the present invention;
图4是本发明的结构示意图之三；Figure 4 is the third structural diagram of the present invention;
图5是本发明的结构示意图之四；Figure 5 is the fourth structural diagram of the present invention;
图6是本发明的使用状态参考图。6 is a reference diagram of the use state of the present invention.
图中：1-齿轮主体；11-延伸段；a-齿形面；12-齿状凸起；b-仿形齿面；13-齿状凸起；14-轴孔；2-凹陷部；21-凹孔；3-从动锥齿轮。In the picture: 1-gear body; 11-extension; a-toothed surface; 12-toothed protrusion; b-profiled toothed surface; 13-toothed protrusion; 14-shaft hole; 2-depression; 21-recessed hole; 3-driven bevel gear.
具体实施方式detailed description
下面结合附图以具体实施例对本发明作进一步描述，见图1-6所示：The present invention will be further described below with specific embodiments in conjunction with the drawings, as shown in FIGS. 1-6:
一种新型齿轮，包括齿轮主体1，齿轮主体1通过粉末冶金的工艺压铸而成，实现原料的高效利用，所述齿轮主体1的一端设置有均匀分布的齿状凸起12，若干齿状凸起12形成齿形面a，齿轮主体1的另一端设置有与所述齿形面a相适配的仿形齿面b，仿形齿面b也由均匀分布的齿状凸起13构成，并且，仿形齿面b的齿状凸起13与齿形面a的齿状凸起12相错位。A new type of gear includes a gear body 1. The gear body 1 is die-cast by powder metallurgy to achieve efficient use of raw materials. One end of the gear body 1 is provided with uniformly distributed tooth-shaped protrusions 12, and several tooth-shaped protrusions The teeth 12 form a toothed surface a. The other end of the gear body 1 is provided with a profiled tooth surface b adapted to the toothed surface a. The profiled tooth surface b is also composed of uniformly distributed tooth-shaped protrusions 13, Furthermore, the tooth-shaped protrusions 13 of the profiling tooth surface b are misaligned with the tooth-shaped protrusions 12 of the tooth surface a.
为了从根本解决齿形面a的强度，于齿形面a的相背一侧设置有仿形齿面b，并且仿形齿面b的齿状凸起13与齿形面a的齿状凸起12相错位，这样的结构 可以保证齿形面a与仿形齿面b之间的实际厚度得以保障，在粉末冶金的过程中，齿形面a位置的粉末可以压制的密度更高，从而直接提升齿形面a的工作强度及硬度。In order to fundamentally solve the strength of the toothed surface a, a profiled toothed surface b is provided on the opposite side of the toothed surface a, and the toothed protrusion 13 of the profiled toothed surface b and the toothed convexity of the toothed surface a Since the 12 phases are misaligned, this structure can ensure that the actual thickness between the tooth surface a and the profile tooth surface b is guaranteed. In the process of powder metallurgy, the powder at the position of the tooth surface a can be compressed at a higher density, thereby Directly improve the working strength and hardness of the tooth profile a.
所述齿状凸起12,13为斜齿，齿形面a为锥形齿形面，所述齿形面a的齿状凸起12和仿形齿面b的齿状凸起13均自外而内连续变高，实际上仿形齿面b为错位的齿轮面a，仿形齿面b的齿状凸起13和齿形面a的齿状凸起12平行设置，设置仿形齿面b的根本原因在于：在粉末冶金的过程中，避免齿轮面a和仿形齿面b之间厚度不均，保证齿形面a位置的粉末密度，保障齿形面a的工作强度及硬度。The tooth- shaped protrusions 12, 13 are oblique teeth, and the tooth-shaped surface a is a tapered tooth-shaped surface. The tooth-shaped protrusions 12 of the tooth-shaped surface a and the tooth-shaped protrusions 13 of the profiled tooth surface b are both from From outside to inside, it becomes higher continuously. In fact, the profiled tooth surface b is a misaligned gear surface a. The toothed protrusions 13 of the profiled tooth surface b and the toothed protrusions 12 of the toothed surface a are arranged in parallel. The basic reason of surface b is: in the process of powder metallurgy, to avoid uneven thickness between gear surface a and profile tooth surface b, to ensure the powder density of tooth surface a position, to ensure the working strength and hardness of tooth surface a .
所述齿轮主体1于齿形面a一端中部向内凹陷形成凹陷部2，凹陷部2既可以去除应力集中的问题，又节省了原材料，凹陷部2内设置有至少两个凹孔21，优选为三个凹孔21，凹孔21用于实际使用过程中，进行急停所述齿轮主体1，保证结构的稳定性。The gear body 1 is recessed inward at the middle of one end of the toothed surface a to form a recessed portion 2. The recessed portion 2 can remove the problem of stress concentration and save raw materials. The recessed portion 2 is provided with at least two recessed holes 21, preferably There are three concave holes 21, and the concave holes 21 are used for the emergency stop of the gear body 1 during actual use to ensure the stability of the structure.
所述齿轮主体1中部设置有轴孔14，轴孔14中可以根据实际使用的要求添加键槽，该轴孔14用于外接转动源，并且齿轮主体1于仿形齿面b一端设置有延伸段11，优选为延伸段11的外径小于齿形面a的最小内径，该延伸段11用于提升齿轮主体1的强度，本发明为了提升齿形面a的强度，对齿形面a位置的厚度进行限定，因此与外接转动源的连接位置也会相应的减少，因此通过一体的延伸段11进行补偿，保证结构的稳定性。A shaft hole 14 is provided in the middle of the gear body 1, and a key slot can be added in the shaft hole 14 according to actual requirements. The shaft hole 14 is used for external rotation source, and the gear body 1 is provided with an extension at one end of the profiling tooth surface b 11. It is preferable that the outer diameter of the extension section 11 is smaller than the minimum inner diameter of the toothed surface a. The extension section 11 is used to increase the strength of the gear body 1. In order to improve the strength of the toothed surface a in the present invention, the position of the toothed surface a The thickness is limited, so the connection position with the external rotation source will be correspondingly reduced. Therefore, the integral extension 11 is used for compensation to ensure the stability of the structure.
上述实施例仅为本发明的较佳实施例，并非依此限制本发明的保护范围，故：凡依本发明的结构、形状、原理所做的等效变化，均应涵盖于本发明的保护范围之内。The above embodiments are only preferred embodiments of the present invention and do not limit the scope of protection of the present invention accordingly. Therefore, any equivalent changes made according to the structure, shape and principle of the present invention should be covered by the protection of the present invention Within range.

Claims (7)

  1. 一种新型齿轮，包括齿轮主体(1)，其特征在于：所述齿轮主体(1)的一端设置有均匀分布的齿状凸起(12)，若干齿状凸起(12)形成齿形面(a)，齿轮主体(1)的另一端设置有与所述齿形面(a)相适配的仿形齿面(b)，仿形齿面(b)也由均匀分布的齿状凸起(13)构成，并且，仿形齿面(b)的齿状凸起(13)与齿形面(a)的齿状凸起(12)相错位。A new type of gear includes a gear body (1), which is characterized in that one end of the gear body (1) is provided with uniformly distributed tooth-shaped protrusions (12), and several tooth-shaped protrusions (12) form a toothed surface (a), the other end of the gear body (1) is provided with a profiled tooth surface (b) adapted to the toothed surface (a), and the profiled tooth surface (b) is also composed of uniformly distributed tooth-shaped protrusions It is constituted by (13), and the tooth-shaped protrusions (13) of the profiling tooth surface (b) are misaligned with the tooth-shaped protrusions (12) of the tooth surface (a).
  2. 根据权利要求1所述的新型齿轮，其特征在于：所述齿状凸起(12,13)为斜齿，齿形面(a)为锥形齿形面，所述齿形面(a)的齿状凸起(12)和仿形齿面(b)的齿状凸起(13)均自外而内连续变高。The novel gear according to claim 1, characterized in that the tooth-shaped protrusions (12, 13) are helical teeth, the tooth-shaped surface (a) is a tapered tooth-shaped surface, and the tooth-shaped surface (a) The tooth-shaped protrusions (12) and the tooth-shaped protrusions (13) of the profiled tooth surface (b) both continuously increase from the outside to the inside.
  3. 根据权利要求2所述的新型齿轮，其特征在于：所述仿形齿面(b)的齿状凸起(13)和齿形面(a)的齿状凸起(12)平行设置。The novel gear according to claim 2, characterized in that the tooth-shaped protrusions (13) of the profiling tooth surface (b) and the tooth-shaped protrusions (12) of the tooth surface (a) are arranged in parallel.
  4. 根据权利要求1所述的新型齿轮，其特征在于：所述齿轮主体(1)于齿形面(a)一端中部向内凹陷形成凹陷部(2)，凹陷部(2)内设置有至少两个凹孔(21)。The new-type gear according to claim 1, characterized in that the gear body (1) is recessed inwardly at the middle of one end of the toothed surface (a) to form a recessed portion (2), and at least two are provided in the recessed portion (2) Recessed holes (21).
  5. 根据权利要求4所述的新型齿轮，其特征在于：包括三个所述凹孔(21)，三个凹孔(21)均匀分布在凹陷部(2)内。The novel gear according to claim 4, characterized in that it includes three said concave holes (21), and the three concave holes (21) are evenly distributed in the concave portion (2).
  6. 根据权利要求1所述的新型齿轮，其特征在于：所述齿轮主体(1)通过粉末冶金的工艺压铸而成。The new-type gear according to claim 1, characterized in that the gear body (1) is die-cast by a powder metallurgy process.
  7. 根据权利要求1所述的新型齿轮，其特征在于：所述齿轮主体(1)中部设置有轴孔(14)，并且齿轮主体(1)于仿形齿面(b)一端设置有延伸段(11)。The novel gear according to claim 1, characterized in that: the gear body (1) is provided with a shaft hole (14) in the middle, and the gear body (1) is provided with an extension section at one end of the profiling tooth surface (b) ( 11).
PCT/CN2019/091791 2018-10-31 2019-06-18 Novel gear WO2020087942A1 (en)

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CN109163069A (en) * 2018-10-31 2019-01-08 金华市宇辰粉末冶金有限公司 A kind of new gear
CN110296183A (en) * 2019-08-03 2019-10-01 金华市宇辰粉末冶金有限公司 A kind of bevel gear set

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JP3730482B2 (en) * 2000-06-22 2006-01-05 日立粉末冶金株式会社 Sintered gear and manufacturing method thereof
CN201875092U (en) * 2010-05-27 2011-06-22 严荣禄 Heat-dissipation gear
CN101982673A (en) * 2010-11-04 2011-03-02 吉林大学 Design method of hypoid gear pair
CN205136520U (en) * 2015-11-12 2016-04-06 浙江联合齿轮有限公司 Pass stable helical gear of power
CN109163069A (en) * 2018-10-31 2019-01-08 金华市宇辰粉末冶金有限公司 A kind of new gear

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