WO2022021473A1 - 一种修枝剪用的传动组件 - Google Patents

一种修枝剪用的传动组件 Download PDF

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Publication number
WO2022021473A1
WO2022021473A1 PCT/CN2020/108329 CN2020108329W WO2022021473A1 WO 2022021473 A1 WO2022021473 A1 WO 2022021473A1 CN 2020108329 W CN2020108329 W CN 2020108329W WO 2022021473 A1 WO2022021473 A1 WO 2022021473A1
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WIPO (PCT)
Prior art keywords
eccentric wheel
shaft
gear
eccentric
pruning shears
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PCT/CN2020/108329
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English (en)
French (fr)
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 WO2022021473A1 publication Critical patent/WO2022021473A1/zh

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G3/00—Cutting implements specially adapted for horticultural purposes; Delimbing standing trees
    • A01G3/08—Other tools for pruning, branching or delimbing standing trees
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
    • H02K7/075—Means for converting reciprocating motion into rotary motion or vice versa using crankshafts or eccentrics

Definitions

  • the invention belongs to a transmission element, in particular to a transmission component for pruning shears.
  • Pruning shears are one of the important equipment for garden maintenance. They are mainly used to prune the branches and leaves of shrubs to make them appear regular.
  • the pruning machine is mainly composed of upper and lower layers of blades.
  • the upper and lower layers of blades are both provided with serrated blades.
  • Action, the transmission between the motor and the blade is carried out through the transmission assembly of the crank connecting rod, and the transmission assembly of the crank connecting rod converts the rotation of the motor into the reciprocating motion of the blade.
  • the present invention provides a transmission assembly for pruning shears that avoids noise and vibration.
  • the present invention adopts the following technical solutions:
  • a transmission assembly for pruning shears comprises a gear, the gear comprises a shaft part, a first ring body and a second ring body which are arranged in sequence from the inside to the outside, the shaft part is provided with a shaft hole, and one end of the shaft hole is provided with Countersunk head groove, the outer side of the second ring body is formed with radially arranged gear teeth;
  • a connecting piece is fixed on the gear, and the connecting piece includes a connecting shaft and a first eccentric wheel that are arranged together in sequence, and the connecting shaft is fitted in the countersunk groove;
  • the first eccentric is detachably provided with a second eccentric, the mass of the first eccentric is equal to the mass of the second eccentric, the eccentric direction of the first eccentric is opposite to the eccentric direction of the second eccentric, the first eccentric
  • the eccentricity of the wheel is the same as the eccentricity of the second eccentric.
  • a first annular groove is formed on the front of the first ring body, a second annular groove is formed on the back of the first ring body, the cross section of the first annular groove is an inverted isosceles trapezoid, and the The cross section is also an inverted isosceles trapezoid.
  • both inner and outer sides of the inner bottom of the first annular groove are provided with first rounded corners, and both inner and outer sides of the inner bottom of the second annular groove are provided with second rounded corners.
  • a limiting groove is formed on the first eccentric wheel, and the second eccentric wheel is partially fitted in the limiting groove.
  • the outer contour of the first eccentric wheel is circular
  • the outer contour of the second eccentric wheel is also circular
  • the inner side wall of the limiting groove is arc-shaped
  • the outer side wall of the second eccentric wheel is partially adapted to the limit on the inner sidewall of the slot.
  • the connecting piece further includes a shaft shoulder, the shaft shoulder is arranged between the connecting shaft and the first eccentric wheel, and the shaft shoulder is arranged at the outer end of the countersunk groove.
  • the connecting shaft is a hollow tubular body.
  • the first eccentric wheel is provided with a first spline hole and a first connection hole
  • the second eccentric wheel is provided with a second spline hole and a second connection hole
  • the first spline hole is opposite to the second
  • the first connection hole is opposite to the second connection hole
  • both the first spline hole and the first connection hole communicate with the inside of the connection shaft.
  • the mass of the gear is greater than the sum of the mass of the connecting piece and the second eccentric.
  • the gear is made of powder metallurgy.
  • the present invention has the following outstanding and beneficial technical effects:
  • the eccentric direction of the first eccentric wheel and the second eccentric wheel are opposite and the eccentric distance is equal, so the centrifugal force generated by the first eccentric wheel and the second eccentric wheel is opposite in direction and equal in magnitude,
  • the first eccentric wheel and the second eccentric wheel can not only be used for transmission, but also play a role of dynamic balance between them, which improves the stability of the transmission assembly of the pruning shears when rotating, and avoids noise and vibration during operation.
  • the first ring body is a connection structure between the shaft portion and the second ring body.
  • the cross section of the first annular groove is an inverted isosceles trapezoid
  • the cross section of the second annular groove is also an inverted isosceles trapezoid. It is an inclined plane.
  • Fig. 1 is the structural representation created by the present invention
  • Fig. 2 is the sectional structure schematic diagram created by the present invention.
  • Fig. 3 is the structural representation of the gear created by the present invention.
  • Fig. 4 is the sectional structure schematic diagram of the gear created by the present invention.
  • Fig. 5 is the structural representation of the connector created by the present invention.
  • Fig. 6 is the structural representation of the second eccentric wheel created by the present invention.
  • a transmission assembly for pruning shears is used to drive between the blades of the pruning shears and the motor of the pruning shears, which can convert the rotation of the motor of the pruning shears into the pruning shears reciprocating motion of the sheet.
  • gear 1 It includes a gear 1, and the gear 1 is made of powder metallurgy. Specifically, it is made of iron-based alloy powder by pressing and sintering. The advantages of high efficiency, controllable product density and reduced product cost.
  • the gear 1 includes a shaft portion 11, a first ring body 12 and a second ring body 13 that are arranged in sequence from the inside to the outside.
  • the first ring body 12 surrounds the outside of the shaft portion 11, and the second ring body 13 surrounds the first ring body.
  • the shaft portion 11, the first ring body 12 and the second ring body 13 are integrally formed together, and the thickness of the shaft portion 11, the thickness of the second ring body 13 and the thickness of the first ring body 12 decrease in turn.
  • the thickness of the shaft portion 11 is 26.1 mm
  • the thickness of the first ring body 12 is 4 mm
  • the thickness of the second ring body 13 is 10.1 mm.
  • the shaft portion 11 is provided with a shaft hole 111, the axial direction of the shaft hole 111 is consistent with the length direction of the shaft portion 11, the shaft hole 111 can be used to install the shaft of the pruning shear motor, and one end of the shaft hole 111 is provided with a countersunk head groove 112 The inner diameter of the countersunk groove 112 is larger than the inner diameter of the shaft hole 111 .
  • the shaft hole 111 on the shaft portion 11 and the gear teeth 131 on the second ring body 13 are used to directly connect the transmission structure of the transmission member. By thickening the shaft portion 11 and the second ring body 13, the stress is improved. area, which improves the stability and reliability of the transmission.
  • the first ring body 12 is a connection structure between the shaft portion 11 and the second ring body 13, and the thickness of the first ring body 12 is increased and reduced, which is beneficial to the lightweight of the gear 1, reduces the material consumption, and reduces the product quality. weight, and improve the compactness of the pressing of the first ring body 12 .
  • a connecting piece 2 is fixed on the gear 1, and the connecting piece 2 can be bolted to one end of the gear 1.
  • the connecting piece 2 includes a connecting shaft 21, a first eccentric wheel 23, a connecting shaft 21 and a first eccentric wheel arranged in sequence.
  • the wheels 23 are integrally formed together, the connecting shaft 21 is fitted into the countersunk groove 112 , the connecting shaft 21 and the countersunk groove 112 are coaxially arranged together, and the first eccentric wheel 23 is eccentrically arranged on the connecting shaft 21 .
  • the connecting shaft 21 is built into the countersunk head groove 112 on the shaft portion 11, which reinforces the connection structure between the gear 1 and the connecting piece 2, reduces the extrusion force, improves the compactness of the structure, and improves the firmness of the connection. properties and product life.
  • the first eccentric wheel 23 is detachably provided with a second eccentric wheel 3, the second eccentric wheel 3 can be bolted to the first eccentric wheel 23, and the second eccentric wheel 3 is also eccentrically arranged on the connecting shaft 21.
  • the mass of the eccentric wheel 23 is equal to the mass of the second eccentric wheel 3.
  • the shape of the first eccentric wheel 23 is the same as the shape of the second eccentric wheel 3, and the first eccentric wheel 23 and the second eccentric wheel 3 are made of the same material. .
  • the eccentric direction of the first eccentric wheel 23 is opposite to the eccentric direction of the second eccentric wheel 3.
  • the eccentric direction of the first eccentric wheel 23 refers to the direction in which the center of gravity of the first eccentric wheel 23 deviates from the axis of the shaft hole 111.
  • the eccentric direction of the second eccentric wheel 3 refers to the direction in which the center of gravity of the second eccentric wheel 3 deviates from the axis of the shaft hole 111 .
  • the eccentric distance of the first eccentric wheel 23 is equal to the eccentric distance of the second eccentric wheel 3.
  • the eccentric distance of the first eccentric wheel 23 refers to the vertical distance between the center of gravity of the first eccentric wheel 23 and the axis of the shaft hole 111
  • the eccentric distance of the second eccentric wheel 3 refers to the vertical distance between the center of gravity of the second eccentric wheel 3 and the axis of the shaft hole 111 .
  • the eccentric directions of the first eccentric wheel 23 and the second eccentric wheel 3 are opposite and the eccentric distance is equal, so the centrifugal force generated by the first eccentric wheel 23 and the second eccentric wheel 3 is opposite in direction and equal in magnitude.
  • the first eccentric wheel 23 and the second eccentric wheel 3 can not only be used for transmission, but also play a role of dynamic balance between the two, which improves the stability of the transmission assembly of the pruning shears when rotating, and avoids noise and noise during operation. shock.
  • the front of the first ring body 12 is provided with a first annular groove 121
  • the back of the first ring body 12 is provided with a second annular groove 122
  • the cross section of the first annular groove 121 is an inverted isosceles trapezoid
  • the cross section of the groove 122 is also an inverted isosceles trapezoid.
  • the first annular groove 121 and the second annular groove 122 further reduce the thickness of the first ring body 12 and further improve the weight of the product, while the cross section of the first annular groove 121 is an inverted isosceles trapezoid, and the second annular groove
  • the cross section of 122 is also an inverted isosceles trapezoid.
  • the inner side wall of the first annular groove 121 is inclined, and the inner side wall of the second annular groove 122 is also inclined.
  • the inner side wall of the annular groove 121 and the inner side wall of the second annular groove 122 form a lateral extrusion force, and the lateral extrusion force fully extrudes the shaft portion 11 and the second ring body 13 to avoid the generation of empty bags on the gear 1, etc. Therefore, the gear 1 has the advantages of uniform structure, no voids and compact structure.
  • the inner and outer sides of the inner bottom of the first annular groove 121 are provided with first rounded corners 123.
  • the radius of the first rounded corner 123 is 1.5 mm
  • the overall structure of the first rounded corner 123 is annular.
  • the length direction of the fillet 123 is the same as the length direction of the first annular groove 121 .
  • the inner and outer sides of the inner bottom of the second annular groove 122 are provided with second rounded corners 124.
  • the radius of the second rounded corner 124 is 0.5 mm
  • the overall structure of the second rounded corner 124 is also annular.
  • the length direction of the corner 124 is the same as the length direction of the second annular groove 122 .
  • first rounded corners 123 and the second rounded corners 124 are opened on the first annular groove 121 and the second annular groove 122 respectively.
  • the first rounded corners 123 and the second rounded corners 124 are used to eliminate the The problem of stress concentration is avoided, cracks are avoided on the gear 1, and the reliability and life of the gear 1 are improved.
  • the gear 1 is tempered and quenched, which reduces the brittleness of the gear 1 and improves the hardness and wear resistance of the gear 1 .
  • the first eccentric wheel 23 is provided with a limit slot 233, the limit slot 233 is opened at the end of the first eccentric wheel 23, the second eccentric wheel 3 is partially fitted in the limit slot 233, and the second eccentric wheel 3 circles It is fixed on the first eccentric wheel 23 to prevent the second eccentric wheel 3 from shaking sideways on the first eccentric wheel 23 and improve the connection firmness between the first eccentric wheel 23 and the second eccentric wheel 3 .
  • the outer contour of the first eccentric wheel 23 is circular, and the outer contour of the second eccentric wheel 3 is also circular.
  • the outer contour of the wheel 3 is partially consistent, and the outer side wall of the second eccentric wheel 3 is fitted on the inner side wall of the limiting groove 233 , which further improves the connection firmness between the first eccentric wheel 23 and the second eccentric wheel 3 .
  • the connecting piece 2 also includes a shaft shoulder 22, which is integrally formed between the connecting shaft 21 and the first eccentric wheel 23, the shaft shoulder 22 is arranged at the outer end of the countersunk groove 112, and the shaft shoulder 22 abuts on the gear. At one end of the 1, the shaft shoulder 22 defines the assembly of the connecting shaft 21 and the shaft hole 111 for positioning, which further facilitates assembly.
  • the connecting shaft 21 is a hollow tube body, which further reduces the weight of the connecting piece 2 and reduces the weight of the product.
  • the first eccentric wheel 23 is provided with a first spline hole 231 and a first connection hole 232
  • the second eccentric wheel 3 is provided with a second spline hole 31 and a second connection hole 32.
  • the mass of the gear 1 is greater than the sum of the masses of the connecting piece 2 and the second eccentric wheel 3, and the moment of inertia of the gear 1 is greater than the moment of inertia of the connecting piece 2 and the second eccentric wheel 3, and the gear 1 can reduce the pruning shears.

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Abstract

本发明创造公开了一种修枝剪用的传动组件，旨在克服现有技术中噪音大和容易震动的问题，它包括齿轮，齿轮采用粉末冶金制成，齿轮包括由内向外依次设置在一起的轴部、第一圈体和第二圈体，轴部上开设有轴孔，轴孔的一端开设有沉头槽，第二圈体的外侧形成有呈辐射状排列的轮齿，齿轮上固定设置有连接件，连接件包括依次设置在一起的连接轴、第一偏心轮，连接轴适配在沉头槽内，第一偏心轮上可拆卸设置有第二偏心轮，第一偏心轮的质量等于第二偏心轮的质量，第一偏心轮的偏心方向和第二偏心轮的偏心方向相反，第一偏心轮的偏心距和第二偏心轮的偏心距一致。

Description

一种修枝剪用的传动组件 技术领域
本发明创造属于传动件，特指一种修枝剪用的传动组件。
背景技术
修枝剪是进行园林维护的重要设备之一，主要用于对灌木的枝叶进行修剪，使其呈现规整的外形。
现有技术中，修枝机主要由上、下两层刀片构成，上下两层刀片上均设有锯齿状的刀刃，两层刀由电机驱动做往复运动，从而实现各刀刃之间的剪切动作，电机和刀片之间通过曲柄连杆的传动组件进行传动，曲柄连杆的传动组件将电机的转动转化为刀片的往复运动。
然而现有技术不够完善，修枝机在工作时，传动组件容易产生较大的噪音和震动。
发明创造内容
为克服现有技术的不足及存在的问题，本发明创造提供一种避免噪音和震动的修枝剪用的传动组件。
为实现上述目的，本发明创造采用如下技术方案：
一种修枝剪用的传动组件，包括齿轮，齿轮包括由内向外依次设置在一起的轴部、第一圈体和第二圈体，轴部上开设有轴孔，轴孔的一端开设有沉头槽，第二圈体的外侧形成有呈辐射状排列的轮齿；
所述齿轮上固定设置有连接件，连接件包括依次设置在一起的连接轴、第一偏心轮，连接轴适配在沉头槽内；
所述第一偏心轮上可拆卸设置有第二偏心轮，第一偏心轮的质量等于第二偏心轮的质量，第一偏心轮的偏心方向和第二偏心轮的偏心方向相反，第一偏心轮的偏心距和第二偏心轮的偏心距一致。
作为优选，所述第一圈体的正面开设有第一环形槽，第一圈体的背面开设有第二环形槽，第一环形槽的横截面呈倒置的等腰梯形，第二环形槽的横截面也呈倒置的等腰梯形。
作为优选，所述第一环形槽内底的内外两侧均设置有第一圆角，第二环形槽内底的内外两侧均设置有第二圆角。
作为优选，所述第一偏心轮上开设有限位槽，第二偏心轮部分适配在限位槽内。
作为优选，所述第一偏心轮的外轮廓呈圆形，第二偏心轮的外轮廓也呈圆形，限位槽的内侧壁呈弧形，第二偏心轮的外侧壁部分适配在限位槽的内侧壁上。
作为优选，所述连接件还包括轴肩，轴肩设置在连接轴和第一偏心轮之间，轴肩设置在沉头槽的外端。
作为优选，所述连接轴为中空的管体。
作为优选，所述第一偏心轮上开设有第一花键孔和第一连接孔，第二偏心轮上开设有第二花键孔和第二连接孔，第一花键孔正对于第二花键孔，第一连接孔正对于第二连接孔，第一花键孔和第一连接孔均连通连接轴的内部。
作为优选，所述齿轮的质量大于连接件和第二偏心轮的质量之和。
作为优选，所述齿轮采用粉末冶金制成。
本发明创造相比现有技术突出且有益的技术效果是：
(1)使用本修枝剪的传动组件时，第一偏心轮和第二偏心轮的偏心方向相 反且偏心距相等，从而第一偏心轮和第二偏心轮产生的离心力方向相反且大小相等，第一偏心轮和第二偏心轮不仅可用于传动，而且两者之间起到动平衡的作用，提高了本修枝剪的传动组件旋转时的稳定性，避免工作时产生噪音和震动。
(2)轴部上的轴孔、第二圈体上的轮齿均用于直接连接传动件的传动结构，通过对轴部和第二圈体进行加厚处理，提高了受力面积，提高了传动的平稳性和可靠性。
(3)第一圈体为轴部和第二圈体之间的连接结构，通过减小第一圈体的厚度和在第一圈体的正面开设第一环形槽和在第一圈体的反面开设第二环形槽，起到对齿轮本体轻量化的目的，减少了材料的用料，降低了产品的重量。
(4)第一环形槽的横截面呈倒置的等腰梯形，第二环形槽的横截面也呈倒置的等腰梯形，第一环形槽的内侧壁为斜面，第二环形槽的内侧壁也为斜面，当齿轮本体在模具中压制过程中，模具对第一环形槽的内侧壁和第二环形槽的内侧壁形成侧向挤压力，侧向挤压力对轴部和第二圈体进行充分挤压，避免齿轮上产生空包等缺陷，因此齿轮具有组织结构均匀、无空包和结构密实的优点。
附图说明
图1是本发明创造的结构示意图；
图2是本发明创造的剖面结构示意图；
图3是本发明创造的齿轮的结构示意图；
图4是本发明创造的齿轮的剖面结构示意图；
图5是本发明创造的连接件的结构示意图；
图6是本发明创造的第二偏心轮的结构示意图；
图中：1-齿轮、2-连接件、3-第二偏心轮、11-轴部、12-第一圈体、13-第二圈体、111-轴孔、112-沉头槽、121-第一环形槽、122-第二环形槽、123-第一圆角、124-第二圆角、131-轮齿、21-连接轴、22-轴肩、23-第一偏心轮、231-第一花键孔、232-第一连接孔、233-限位槽、31-第二花键孔、32-第二连接孔。
具体实施方式
为了便于本领域技术人员的理解，下面结合附图和具体实施例对本发明创造作进一步描述。
如图1至图6所示，一种修枝剪用的传动组件，用于在修枝剪的刀片和修枝剪的电机之间传动，可将修枝剪电机的转动转化为修枝剪刀片的往复运动。
它包括齿轮1，齿轮1采用粉末冶金制成，具体地，采用铁基合金粉末进行压制成型、烧结而制成，采用粉末冶金制成的齿轮1本体具有制造工序少、材料利用率高、加工效率高、产品密度可控和降低产品成本的优点。
齿轮1包括由内向外依次设置在一起的轴部11、第一圈体12和第二圈体13，第一圈体12环绕在轴部11的外侧，第二圈体13环绕在第一圈体12的外侧，轴部11、第一圈体12和第二圈体13一体成形设置在一起，轴部11的厚度、第二圈体13的厚度和第一圈体12的厚度依次减小，具体地，轴部11的厚度为26.1mm，第一圈体12的厚度为4mm，第二圈体13的厚度为10.1mm。
轴部11上开设有轴孔111，轴孔111的轴向和轴部11的长度方向一致，轴孔111可用于安装修枝剪电机的机轴，轴孔111的一端开设有沉头槽112，沉头槽112的内径大于轴孔111的内径，第二圈体13的外侧形成有若干轮齿131，若干轮齿131呈辐射状排列在第二圈体13的外侧。
轴部11上的轴孔111、第二圈体13上的轮齿131均用于直接连接传动件的 传动结构，通过对轴部11和第二圈体13进行加厚处理，提高了受力面积，提高了传动的平稳性和可靠性。
第一圈体12为轴部11和第二圈体13之间的连接结构，提高降低第一圈体12的厚度，有利于齿轮1的轻量化，减少了材料的用料，降低了产品的重量，并提高了第一圈体12压制的紧实度。
所述齿轮1上固定设置有连接件2，连接件2可螺栓固定在齿轮1的一端，连接件2包括依次设置在一起的连接轴21、第一偏心轮23，连接轴21和第一偏心轮23一体成形设置在一起，连接轴21适配在沉头槽112内，连接轴21和沉头槽112同轴设置在一起，第一偏心轮23偏心设置在连接轴21上。
连接轴21内置在轴部11上的沉头槽112内，对齿轮1和连接件2的连接结构起到补强作用，降低了挤压力，提高了结构的紧凑性，也提高了连接牢固性和产品的使用寿命。
所述第一偏心轮23上可拆卸设置有第二偏心轮3，第二偏心轮3可螺栓固定在第一偏心轮23上，第二偏心轮3也偏心设置在连接轴21上，第一偏心轮23的质量等于第二偏心轮3的质量，具体地，第一偏心轮23的形状和第二偏心轮3的形状一致，第一偏心轮23和第二偏心轮3采用同一材料制成。
第一偏心轮23的偏心方向和第二偏心轮3的偏心方向相反，具体地，第一偏心轮23的偏心方向指的是第一偏心轮23的重心偏离轴孔111轴心的方向，第二偏心轮3的偏心方向指的是第二偏心轮3的重心偏离轴孔111轴心的方向。
第一偏心轮23的偏心距等于第二偏心轮3的偏心距，具体地，第一偏心轮23的偏心距指的是第一偏心轮23重心和轴孔111轴心之间的垂直距离，第二偏心轮3的偏心距指的是第二偏心轮3重心和轴孔111轴心之间的垂直距离。
使用本修枝剪的传动组件时，第一偏心轮23和第二偏心轮3的偏心方向相 反且偏心距相等，从而第一偏心轮23和第二偏心轮3产生的离心力方向相反且大小相等，第一偏心轮23和第二偏心轮3不仅可用于传动，而且两者之间起到动平衡的作用，提高了本修枝剪的传动组件旋转时的稳定性，避免工作时产生噪音和震动。
所述第一圈体12的正面开设有第一环形槽121，第一圈体12的背面开设有第二环形槽122，第一环形槽121的横截面呈倒置的等腰梯形，第二环形槽122的横截面也呈倒置的等腰梯形。
第一环形槽121和第二环形槽122进一步降低了第一圈体12的厚度，进一步提高了产品的轻量化，而第一环形槽121的横截面呈倒置的等腰梯形，第二环形槽122的横截面也呈倒置的等腰梯形，第一环形槽121的内侧壁为斜面，第二环形槽122的内侧壁也为斜面，当齿轮1本体在模具中压制过程中，模具对第一环形槽121的内侧壁和第二环形槽122的内侧壁形成侧向挤压力，侧向挤压力对轴部11和第二圈体13进行充分挤压，避免齿轮1上产生空包等缺陷，因此齿轮1具有组织结构均匀、无空包和结构密实的优点。
所述第一环形槽121内底的内外两侧均设置有第一圆角123，具体地，第一圆角123的半径为1.5mm，第一圆角123的整体结构呈环状，第一圆角123的长度方向和第一环形槽121的长度方向一致。
第二环形槽122内底的内外两侧均设置有第二圆角124，具体地，第二圆角124的半径为0.5mm，第二圆角124的整体结构也呈环状，第二圆角124的长度方向和第二环形槽122的长度方向一致。
在齿轮1压制完成后，再对第一环形槽121和第二环形槽122分别进行第一圆角123和第二圆角124的开设，第一圆角123和第二圆角124起到消除应力集中的问题，避免齿轮1上产生裂纹，提高了齿轮1使用的可靠性和寿命。
所述齿轮1经过回火、淬火处理，降低了齿轮1的脆性，提高了齿轮1的硬度和耐磨性。
所述第一偏心轮23上开设有限位槽233，限位槽233开设在第一偏心轮23的端部，第二偏心轮3部分适配在限位槽233内，第二偏心轮3周向固定在第一偏心轮23上，避免第二偏心轮3在第一偏心轮23上侧向晃动，提高了第一偏心轮23和第二偏心轮3之间的连接牢固性。
所述第一偏心轮23的外轮廓呈圆形，第二偏心轮3的外轮廓也呈圆形，限位槽233的内侧壁呈弧形，限位槽233内侧壁的轮廓和第二偏心轮3的外轮廓部分一致，第二偏心轮3的外侧壁部分适配在限位槽233的内侧壁上，进一步提高了第一偏心轮23和第二偏心轮3之间的连接牢固性。
所述连接件2还包括轴肩22，轴肩22一体成形设置在连接轴21和第一偏心轮23之间，轴肩22设置在沉头槽112的外端，轴肩22抵接在齿轮1的一端，轴肩22限定了连接轴21和轴孔111的装配起到定位的作用，进一步方便了装配。
所述连接轴21为中空的管体，进一步轻量化了连接件2，降低了产品的重量。
所述第一偏心轮23上开设有第一花键孔231和第一连接孔232，第二偏心轮3上开设有第二花键孔31和第二连接孔32，轴杆可穿设于第一花键孔231和第二花键孔31，螺栓可穿设于第一连接孔232和第二连接孔32，第一花键孔231正对于第二花键孔31，第一连接孔232正对于第二连接孔32，第一花键孔231和第一连接孔232均连通连接轴21的内部，从而螺栓和轴杆可部分隐藏在连接轴21的内部，避免结构裸露在外而影响美观。
所述齿轮1的质量大于连接件2和第二偏心轮3的质量之和，齿轮1的转 动惯量大于连接件2和第二偏心轮3的转动惯量，齿轮1可起到减少本修枝剪的传动组件运转时的速度波动。
上述实施例仅为本发明创造的较佳实施例，并非依此限制本发明创造的保护范围，故：凡依本发明创造的结构、形状、原理所做的等效变化，均应涵盖于本发明创造的保护范围之内。

Claims (10)

  1. 一种修枝剪用的传动组件，其特征在于，包括齿轮(1)，齿轮(1)包括由内向外依次设置在一起的轴部(11)、第一圈体(12)和第二圈体(13)，轴部(11)上开设有轴孔(111)，轴孔(111)的一端开设有沉头槽(112)，第二圈体(13)的外侧形成有呈辐射状排列的轮齿(131)；
    所述齿轮(1)上固定设置有连接件(2)，连接件(2)包括依次设置在一起的连接轴(21)、第一偏心轮(23)，连接轴(21)适配在沉头槽(112)内；
    所述第一偏心轮(23)上可拆卸设置有第二偏心轮(3)，第一偏心轮(23)的质量等于第二偏心轮(3)的质量，第一偏心轮(23)的偏心方向和第二偏心轮(3)的偏心方向相反，第一偏心轮(23)的偏心距等于第二偏心轮(3)的偏心距。
  2. 根据权利要求1所述的一种修枝剪用的传动组件，其特征在于，所述第一圈体(12)的正面开设有第一环形槽(121)，第一圈体(12)的背面开设有第二环形槽(122)，第一环形槽(121)的横截面呈倒置的等腰梯形，第二环形槽(122)的横截面也呈倒置的等腰梯形。
  3. 根据权利要求2所述的一种修枝剪用的传动组件，其特征在于，所述第一环形槽(121)内底的内外两侧均设置有第一圆角(123)，第二环形槽(122)内底的内外两侧均设置有第二圆角(124)。
  4. 根据权利要求1所述的一种修枝剪用的传动组件，其特征在于，所述第一偏心轮(23)上开设有限位槽(233)，第二偏心轮(3)部分适配在限位槽(233)内。
  5. 根据权利要求4所述的一种修枝剪用的传动组件，其特征在于，所述第一偏心轮(23)的外轮廓呈圆形，第二偏心轮(3)的外轮廓也呈圆形，限位槽(233)的内侧壁呈弧形，第二偏心轮(3)的外侧壁部分适配在限位槽(233) 的内侧壁上。
  6. 根据权利要求1所述的一种修枝剪用的传动组件，其特征在于，所述连接件(2)还包括轴肩(22)，轴肩(22)设置在连接轴(21)和第一偏心轮(23)之间，轴肩(22)设置在沉头槽(112)的外端。
  7. 根据权利要求1或6所述的一种修枝剪用的传动组件，其特征在于，所述连接轴(21)为中空的管体。
  8. 根据权利要求7所述的一种修枝剪用的传动组件，其特征在于，所述第一偏心轮(23)上开设有第一花键孔(231)和第一连接孔(232)，第二偏心轮(3)上开设有第二花键孔(31)和第二连接孔(32)，第一花键孔(231)正对于第二花键孔(31)，第一连接孔(232)正对于第二连接孔(32)，第一花键孔(231)和第一连接孔(232)均连通连接轴(21)的内部。
  9. 根据权利要求1所述的一种修枝剪用的传动组件，其特征在于，所述齿轮(1)的质量大于连接件(2)和第二偏心轮(3)的质量之和。
  10. 根据权利要求1所述的一种修枝剪用的传动组件，其特征在于，所述齿轮(1)采用粉末冶金制成。
PCT/CN2020/108329 2020-07-28 2020-08-11 一种修枝剪用的传动组件 WO2022021473A1 (zh)

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