TWM589161U - Sprocket noise reduction structure - Google Patents
Sprocket noise reduction structure Download PDFInfo
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- TWM589161U TWM589161U TW108213271U TW108213271U TWM589161U TW M589161 U TWM589161 U TW M589161U TW 108213271 U TW108213271 U TW 108213271U TW 108213271 U TW108213271 U TW 108213271U TW M589161 U TWM589161 U TW M589161U
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- sprocket
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
- B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
- B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
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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
- F16H55/30—Chain-wheels
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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
- F16H55/30—Chain-wheels
- F16H2055/306—Chain-wheels with means providing resilience or vibration damping in chain sprocket wheels
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
本創作係有關於一種鏈輪降噪結構,係主要使一鏈輪其鏈齒之齒頂形成有相對二縱向長邊及二橫向短邊,並使該二橫向短邊分別與其二側相鄰之縱向長邊間以一斜邊相連接,而使該齒頂形成一鼓型齒廓,且使該鼓型齒廓延伸至齒根,藉此呈鼓型鏈齒設計即可縮減本創作之鏈輪其鏈齒與鏈條之鏈片及鏈滾於傳動過程的碰撞磨擦面積,以達到有效提高鏈輪與鏈條傳動順暢性,及降低鏈輪與鏈條傳動時因碰撞磨擦產生的噪音者。This creation is about a noise reduction structure of a sprocket. It is mainly to make the top of a sprocket tooth have two longitudinal long sides and two lateral short sides, and make the two lateral short sides adjacent to their two sides. The longitudinal long sides are connected by a beveled edge, so that the tooth top forms a drum-shaped tooth profile, and the drum-shaped tooth profile extends to the tooth root, whereby the design of the drum-shaped sprocket can reduce the original creation. The sprocket teeth and chain chains and chain rolls are in the friction and friction area of the transmission process, so as to effectively improve the smoothness of the sprocket and chain transmission, and reduce the noise caused by the collision and friction during the transmission of the sprocket and chain.
Description
本創作係有關於一種鏈輪降噪結構,尤指一種可有效減少鏈輪與鏈條於傳動時產生的碰撞磨擦,以降低傳動時發出噪音,並提高傳動順暢性之鏈輪結構。This creation is about a sprocket noise reduction structure, especially a sprocket structure that can effectively reduce the collision friction between the sprocket and the chain during transmission to reduce the noise generated during transmission and improve the smoothness of the transmission.
按,汽、機車的發展,擴展了人們生活的便利性,傳統汽、機車係主要使用汽油引擎作為動力來源,汽油引擎排放的廢氣係包含有二氧化碳、碳氫化合物等,而對空氣造成嚴重污染。According to the development of automobiles and locomotives, the convenience of people’s lives has been expanded. Traditional automobiles and locomotives mainly use gasoline engines as the power source. The exhaust gas emitted by gasoline engines contains carbon dioxide and hydrocarbons, which cause serious air pollution. .
基於對環保的重視,利用馬達作為動力來源的電動車係逐漸受到消費者青睞,現有二輪或三輪的電動車係主要於車架其前、後方分別設有前、後輪,並於該車架上裝設有一馬達,又於後輪組設有一鏈輪,且使該馬達其傳動部與鏈輪間以一鏈條繞設連結,藉此,利用鏈輪及鏈條的傳動結構,即可將馬達動力傳遞至後輪,以驅使電動車行進。然,請參閱第七圖所示,現有電動車之鏈輪其鏈齒(4)的齒頂(41)係呈矩型齒廓,且使該矩型齒廓延伸至齒根,當現有鏈輪與鏈條(5)傳動時,其鏈齒(4)之矩型齒頂(41)的縱向長邊(42)及橫向短邊(43)係會與鏈條(5)其鏈片(51)與鏈滾(52)圍設而成之齒孔(53)貼合接觸,以致頻繁地與鏈條(5)之鏈片(51)及鏈滾(52)產生碰撞磨擦,依此,除造成鏈輪與鏈條(5)作動不順暢外,更會發出擾人的碰撞噪音,以致影響電動車之騎乘品質者。Based on the emphasis on environmental protection, electric vehicle systems that use motors as a source of power are gradually favored by consumers. The existing two-wheel or three-wheel electric vehicle systems are mainly provided with front and rear wheels at the front and rear of the frame, and are attached to the frame. The top is equipped with a motor, and a sprocket is provided on the rear wheel set, and the motor is connected by a chain between the transmission part and the sprocket. By using the transmission structure of the sprocket and the chain, the motor can be Power is transmitted to the rear wheels to drive the electric vehicle to travel. However, as shown in the seventh figure, the sprocket (41) of the existing electric vehicle sprocket has a tooth profile (41) with a rectangular tooth profile, and extends the rectangular tooth profile to the tooth root, when the existing chain When the wheel and the chain (5) are driven, the longitudinal long side (42) and the lateral short side (43) of the rectangular tooth top (41) of the sprocket (4) of the sprocket (4) are connected with the chain (5) and its chain (51) It is in close contact with the perforated hole (53) formed by the chain roller (52), so that it frequently collides with the chain piece (51) and the chain roller (52) of the chain (5). If the wheels and chain (5) do not move smoothly, they will emit disturbing collision noise, which will affect the riding quality of electric vehicles.
緣是,本創作人有鑑於現有二輪或三輪的電動車其鏈輪與鏈條結構於傳動過程會發出擾人噪音及作動不順暢性等缺失,乃藉其多年於相關領域的製造及設計經驗和知識的輔佐,並經多方巧思,研創出本創作。The reason is that, in view of the existing two-wheel or three-wheel electric vehicles, the sprocket and chain structure will emit disturbing noises and lack of smooth operation during the transmission process, which is based on their years of manufacturing and design experience in related fields. With the help of knowledge, and after many ingenuity, research and creation of this creation.
本創作係有關於一種鏈輪降噪結構,其主要目的係為了提供一種可有效減少鏈輪與鏈條於傳動時產生的碰撞磨擦,以降低傳動時發出噪音,並提高傳動順暢性之鏈輪結構。This creation is about a sprocket noise reduction structure. Its main purpose is to provide a sprocket structure that can effectively reduce the collision friction between the sprocket and the chain during transmission to reduce the noise generated during transmission and improve the smoothness of the transmission. .
為了達到上述實施目的,本創作人乃研擬如下鏈輪降噪結構,係主要設有一鏈輪本體,並於該鏈輪本體周緣間隔成型有數鏈齒,乃使該鏈齒形成有相對之齒根及齒頂,並使該鏈齒之齒根與該鏈輪本體連接為一體,又使該鏈齒之齒頂形成相對二縱向長邊及位於該二縱向長邊間之相對二橫向短邊,並使該二橫向短邊分別與其二側相鄰之縱向長邊間以一斜邊相連接,而使該鏈齒之齒頂形成一鼓型齒廓,復使該齒頂之鼓型齒廓延伸至齒根處。In order to achieve the above-mentioned implementation purposes, the author has developed the following sprocket noise reduction structure, which is mainly provided with a sprocket body, and a number of sprockets are formed at the periphery of the sprocket body, so that the sprocket is formed with relative teeth Roots and tooth crests, and connect the tooth roots of the sprocket teeth and the sprocket body as a whole, and make the tooth crests of the sprocket teeth form two longitudinal long sides and two transverse short sides between the two longitudinal long sides , And connect the two transverse short sides with the longitudinal long sides adjacent to the two sides by a bevel, so that the tooth top of the sprocket forms a drum-shaped tooth profile, and the drum tooth of the tooth top The profile extends to the root of the tooth.
如上所述之鏈輪降噪結構,其中,該鏈齒其齒頂係定義有一沿該縱向長邊而設之第一基準線,以及一沿該斜邊而設之切線,且使該第一基準線與其相鄰之該切線間形成5~40度的夾角。The noise reduction structure of the sprocket as described above, wherein the tooth tip of the sprocket defines a first datum line along the longitudinal long side, and a tangent line along the hypotenuse, and makes the first The angle between the reference line and the adjacent tangent line is 5-40 degrees.
如上所述之鏈輪降噪結構,其中,該鏈齒其齒頂係定義有一沿該縱向長邊而設之第一基準線及一沿該橫向短邊而設之第二基準線,且使沿該二縱向長邊而設之第一基準線與沿該二橫向短邊而設之第二基準線共同圍設形成一矩形,而使該第一基準線形成該矩形之長邊,另該第二基準線形成該矩形之短邊,又使該縱向長邊長度減少為該第一基準線形成之矩形長邊其長度的20%〜60%,並使該橫向短邊長度減少為該第二基準線形成之矩形短邊其長度的20%〜80%。The noise reduction structure of the sprocket as described above, wherein the tooth tip of the sprocket defines a first reference line along the longitudinal long side and a second reference line along the lateral short side, and The first reference line along the two longitudinal long sides and the second reference line along the two lateral short sides together form a rectangle, and the first reference line forms the long side of the rectangle, and the other The second reference line forms the short side of the rectangle, and the length of the longitudinal long side is reduced to 20%~60% of the length of the rectangular long side formed by the first reference line, and the length of the transverse short side is reduced to the first The short side of the rectangle formed by the two reference lines is 20%~80% of its length.
如上所述之鏈輪降噪結構,其中,該鏈齒其齒頂係定義有一沿該縱向長邊而設之第一基準線及一沿該橫向短邊而設之第二基準線,且使沿該二縱向長邊而設之第一基準線與沿該二橫向短邊而設之第二基準線共同圍設形成一矩形,並使該二第一基準線與二第二基準線圍設而成之該矩形其四端角與該鼓型齒廓間各形成有一呈直角三角形之缺口,且使該直角三角形之缺口形成有一斜邊,以與該鼓型齒廓之斜邊其形狀及位置相對應。The noise reduction structure of the sprocket as described above, wherein the tooth tip of the sprocket defines a first reference line along the longitudinal long side and a second reference line along the lateral short side, and A first reference line along the two longitudinal long sides and a second reference line along the two lateral short sides together form a rectangle, and the two first reference lines and the second second reference lines are enclosed The four corners of the resulting rectangle and the drum-shaped tooth profile are each formed with a notch of a right-angled triangle, and the notch of the right-angled triangle is formed with a beveled edge to match the shape of the beveled edge of the drum-shaped tooth profile and The location corresponds.
又本創作人係研擬有另一鏈輪降噪結構,係主要設有一鏈輪本體,並於該鏈輪本體周緣間隔成型有數鏈齒,乃使該鏈齒形成有相對之齒根及齒頂,並使該鏈齒之齒根與該鏈輪本體連接為一體,又使該鏈齒之齒頂形成相對二縱向長邊及位於該二縱向長邊間之相對二橫向短邊,並使該二橫向短邊分別與其二側相鄰之縱向長邊間以一弧邊相連接,而使該鏈齒之齒頂形成一鼓型齒廓,復使該齒頂之鼓型齒廓延伸至齒根處。In addition, the author of the project has developed another sprocket noise reduction structure, which is mainly equipped with a sprocket body, and several sprockets are formed at the periphery of the sprocket body, so that the sprocket is formed with relative tooth roots and teeth Crest, and connect the root of the sprocket to the sprocket body as a whole, and make the crest of the sprocket form two longitudinal long sides and two transverse short sides between the two longitudinal long sides, and make The two lateral short sides are respectively connected to the adjacent longitudinal long sides by an arc edge, so that the tooth top of the sprocket forms a drum-shaped tooth profile, and the drum tooth profile of the tooth top extends to Tooth root.
如上所述之鏈輪降噪結構,其中,該鏈齒其齒頂係定義有一通過該縱向長邊之基準線,以及一通過與該縱向長邊相連接之弧邊的切線,而使該縱向長邊之基準線與該弧邊的切線間形成5~40度的夾角。The noise reduction structure of the sprocket as described above, wherein the tooth tip of the sprocket defines a reference line passing through the longitudinal long side, and a tangent line passing through the arc edge connected to the longitudinal long side, so that the longitudinal direction The angle between the reference line of the long side and the tangent of the arc side is 5 to 40 degrees.
如上所述之鏈輪降噪結構,其中,該鏈齒其齒頂係定義有一沿該縱向長邊而設之第一基準線及一沿該橫向短邊而設之第二基準線,且使沿該二縱向長邊而設之第一基準線與沿該二橫向短邊而設之第二基準線共同圍設形成一矩形,而使該第一基準線形成該矩形之長邊,另該第二基準線形成該矩形之短邊,又使該縱向長邊長度減少為該第一基準線形成之矩形長邊其長度的20%〜60%,並使該橫向短邊長度減少為該第二基準線形成之矩形短邊其長度的20%〜80%。The noise reduction structure of the sprocket as described above, wherein the tooth tip of the sprocket defines a first reference line along the longitudinal long side and a second reference line along the lateral short side, and The first reference line along the two longitudinal long sides and the second reference line along the two lateral short sides together form a rectangle, and the first reference line forms the long side of the rectangle, and the other The second reference line forms the short side of the rectangle, and the length of the longitudinal long side is reduced to 20%~60% of the length of the rectangular long side formed by the first reference line, and the length of the transverse short side is reduced to the first The short side of the rectangle formed by the two reference lines is 20%~80% of its length.
如上所述之鏈輪降噪結構,其中,該鏈齒其齒頂係定義有一沿該縱向長邊而設之第一基準線及一沿該橫向短邊而設之第二基準線,且使沿該二縱向長邊而設之第一基準線與沿該二橫向短邊而設之第二基準線共同圍設形成一矩形,並使該二第一基準線與二第二基準線圍設而成之該矩形其四端角與該鼓型齒廓間各形成有一概呈直角三角形之缺口,且使該概呈直角三角形之缺口形成有一斜邊,並使該斜邊呈凹弧狀,以與該鼓型齒廓之弧邊形狀及位置相對應。The noise reduction structure of the sprocket as described above, wherein the tooth tip of the sprocket defines a first reference line along the longitudinal long side and a second reference line along the lateral short side, and A first reference line along the two longitudinal long sides and a second reference line along the two lateral short sides together form a rectangle, and the two first reference lines and the second second reference lines are enclosed Between the four corners of the rectangle and the drum-shaped tooth profile, a notch with a generally right triangle is formed, and the notch with a right triangle is formed with a beveled edge, and the beveled edge is in a concave arc shape. It corresponds to the shape and position of the arc edge of the drum tooth profile.
藉此,利用本創作之鏈輪呈鼓型之鏈齒設計,即可縮減本創作之鏈輪其鏈齒與鏈條之鏈片及鏈滾於傳動過程的碰撞磨擦面積,以達到有效提高鏈輪與鏈條傳動順暢性,及降低鏈輪與鏈條傳動時因碰撞磨擦產生的噪音者。In this way, by using the drum sprocket design of the created sprocket, the collision friction area of the sprocket of the created sprocket, the chain piece of the chain and the chain roll during the transmission process can be reduced, so as to effectively improve the sprocket Smooth transmission with the chain, and reduce the noise caused by collision and friction during the transmission of the sprocket and the chain.
而為令本創作之技術手段及其所能達成之效果,能夠有更完整且清楚的揭露,茲詳細說明如下,請一併參閱揭露之圖式及圖號:In order to make the technical means of this creation and the effects it can achieve more complete and clear disclosure, here are detailed descriptions, please refer to the disclosed schemes and figures:
首先,請參閱第一、二圖所示,為本創作之鏈輪(1),係主要設有一鏈輪本體(11),並於該鏈輪本體(11)周緣間隔成型有數鏈齒(12),乃使該鏈齒(12)形成有相對之齒根(121)及齒頂(122),並使該鏈齒(12)之齒根(121)與該鏈輪本體(11)連接為一體,又該鏈齒(12)之齒頂(122)係形成相對二縱向長邊(13)及位於該二縱向長邊(13)間之相對二橫向短邊(14),並使該二橫向短邊(14)分別與其二側相鄰之縱向長邊(13)間以一斜邊(15)相連接,而使該鏈齒(12)之齒頂(122)形成一鼓型齒廓,另定義有一沿該縱向長邊(13)而設之第一基準線(16)及一沿該橫向短邊(14)而設之第二基準線(17),且使沿該二縱向長邊(13)而設之第一基準線(16)與沿該二橫向短邊(14)而設之第二基準線(17)共同圍設形成一矩形,而使該第一基準線(16)形成該矩形之長邊,另該第二基準線(17)形成該矩形之短邊,又使該縱向長邊(13)長度減少為該第一基準線(16)形成之矩形長邊其長度的20%〜60%,並使該橫向短邊(14)長度減少為該第二基準線(17)形成之矩形短邊其長度的20%〜80%,或本創作係可定義有一沿該斜邊(15)而設之切線(18),且使該第一基準線(16)與其相鄰之該切線(18)間形成約5~40度的夾角(θ),又使該二第一基準線(16)與二第二基準線(17)圍設而成之該矩形其四端角,與該鼓型齒廓間各形成有一呈直角三角形之缺口(19),且使該直角三角形之缺口(19)其斜邊與該鼓型齒廓之斜邊(15)形狀及位置相對應,復使該齒頂(122)之鼓型齒廓延伸至齒根(121)處。First of all, please refer to the first and second pictures, the sprocket (1) for this creation is mainly provided with a sprocket body (11), and a number of sprockets (12) are formed at intervals around the periphery of the sprocket body (11) ), so that the sprocket (12) is formed with opposite tooth root (121) and tooth crest (122), and the tooth root (121) of the sprocket (12) and the sprocket body (11) are connected as The tooth top (122) of the sprocket (12) is formed as one body, forming two relatively long longitudinal sides (13) and two relatively short lateral sides (14) between the two longitudinal long sides (13), and making the two The lateral short side (14) is connected to the longitudinal long side (13) adjacent to each side by a bevel (15), so that the tooth tip (122) of the sprocket (12) forms a drum-shaped tooth profile , Another definition has a first datum line (16) along the longitudinal long side (13) and a second datum line (17) along the transverse short side (14), and makes the length along the two longitudinal sides The first reference line (16) along the side (13) and the second reference line (17) along the two lateral short sides (14) together form a rectangle, so that the first reference line (16) ) Forms the long side of the rectangle, and the second reference line (17) forms the short side of the rectangle, and reduces the length of the longitudinal long side (13) to the long side of the rectangle formed by the first reference line (16) 20%~60% of the length, and the length of the lateral short side (14) is reduced to 20%~80% of the length of the rectangular short side formed by the second reference line (17), or this creation department can define an edge The hypotenuse (15) is provided with a tangent (18), and an angle (θ) of about 5-40 degrees is formed between the first reference line (16) and the adjacent tangent (18), and the two The four corners of the rectangle surrounded by the first reference line (16) and the two second reference lines (17) form a right-angled triangle gap (19) with the drum tooth profile, and make the The notch (19) of the right-angled triangle corresponds to the shape and position of the bevel (15) of the drum profile, so that the drum profile of the tooth tip (122) extends to the root (121).
據此,利用本創作之鏈齒(12)其鼓型齒頂(122)的縱向長邊(13)長度,減少為現有之鏈齒(4)其矩型齒頂(41)之縱向長邊(42)長度的20%〜60%,及使本創作之鏈齒(12)其鼓型齒頂(122)之橫向短邊(14)長度,減少為現有鏈齒(4)其矩形齒頂(41)之橫向短邊(43)長度的20%〜80%的設計,請一併參閱第三圖所示,當將本創作之鏈輪(1)組裝於二輪或三輪的電動車之後輪處,並與該電動車其馬達之傳動部以鏈條(2)繞設連結,而使鏈輪(1)之鏈齒(12)與鏈條(2)其鏈片(21)與鏈滾(22)圍設而成之齒孔(23)相嚙合,此時,本創作呈鼓型之鏈齒(12)其斜邊(15)處係會與鏈條(2)之齒孔(23)形成有適當間隙,以縮減本創作之鏈輪(1)其鏈齒(12)與鏈條(2)其鏈片(21)及鏈滾(22)於傳動過程的碰撞磨擦面積,而達到有效提高鏈輪(1)與鏈條(2)傳動順暢性,及降低鏈輪(1)與鏈條(2)傳動時因碰撞磨擦產生的擾人噪音等效果,以利提高二輪或三輪的電動車之騎乘品質者。Accordingly, the length of the longitudinal long side (13) of the drum tooth tip (122) of the sprocket (12) of this creation is reduced to the longitudinal long side of the rectangular tooth tip (41) of the existing sprocket (4) (42) 20%~60% of the length, and the length of the transverse short side (14) of the drum tooth tip (122) of the sprocket (12) of this creation is reduced to the rectangular tooth crest of the existing sprocket (4) (41) The design of the lateral short side (43) of 20% to 80% of the length, please also refer to the third figure, when the sprocket (1) of this creation is assembled on the rear wheel of the two-wheel or three-wheel electric vehicle And connected with the transmission part of the motor of the electric vehicle with a chain (2), so that the sprocket (1) sprocket (12) and the chain (2) its chain plate (21) and chain roller (22) ) The surrounding perforations (23) mesh with each other. At this time, the drum-shaped sprocket (12) and its bevel (15) will be formed with the perforation (23) of the chain (2) Appropriate clearance to reduce the collision friction area of the sprocket (1), sprocket (12), chain (2), chain (21) and chain roller (22) in the transmission process, and effectively improve the sprocket (1) Smooth transmission with the chain (2), and the effect of reducing the disturbing noise caused by collision and friction during the transmission of the sprocket (1) and the chain (2), so as to improve the riding quality of the two-wheel or three-wheel electric vehicle By.
再者,請參閱第四、五圖所示,為本創作之另一實施例之鏈輪(3),係主要於該鏈輪(3)之鏈輪本體(31)周緣間隔成型有數鏈齒(32),並使該鏈齒(32)之齒根(321)與該鏈輪本體(31)連接為一體,又使該鏈齒(32)之齒頂(322)形成相對二縱向長邊(33)及位於該二縱向長邊(33)間之相對二橫向短邊(34),並使該二橫向短邊(34)分別與其二側相鄰之縱向長邊(33)間以一弧邊(35)相連接,而使該鏈齒(32)之齒頂(322)形成另種鼓型齒廓,另定義有一沿該縱向長邊(33)而設之第一基準線(36)及一沿該橫向短邊(34)而設之第二基準線(37),且使沿該二縱向長邊(33)而設之第一基準線(36)與沿該二橫向短邊(34)而設之第二基準線(37)共同圍設形成一矩形,而使該第一基準線(36)形成該矩形之長邊,另該第二基準線(37)形成該矩形之短邊,又使該縱向長邊(33)長度減少為該第一基準線(36)形成之矩形長邊其長度的20%〜60%,並使該橫向短邊(34)長度減少為該第二基準線(37)形成之矩形短邊其長度的20%〜80%,或本創作係可定義一通過該弧邊(35)之切線(38),且使該第一基準線(36)與其相鄰之該切線(38)間形成約5~40度的夾角(θ),又使該二第一基準線(36)與二第二基準線(37)圍設而成之該矩形其四端角,與該鼓型齒廓間各形成有一概呈直角三角形之缺口(39),且使該概呈直角三角形之缺口(39)其斜邊處形成凹弧狀,以與該鼓型齒廓之弧邊(35)形狀及位置相對應,復使該齒頂(322)之鼓型齒廓延伸至齒根(321)處。In addition, please refer to the fourth and fifth figures, the sprocket (3) according to another embodiment of the present invention is mainly formed with a number of sprockets spaced around the periphery of the sprocket body (31) of the sprocket (3) (32), and the tooth root (321) of the sprocket (32) is connected with the sprocket body (31) as a whole, and the tooth crest (322) of the sprocket (32) is formed into two relatively long longitudinal sides (33) and the opposite two lateral short sides (34) between the two longitudinal long sides (33), and the two lateral short sides (34) are respectively separated from the longitudinal long sides (33) adjacent to the two sides by one The arc edges (35) are connected, so that the tooth tops (322) of the sprocket teeth (32) form another drum-shaped tooth profile, and a first reference line (36) along the longitudinal long side (33) is defined. ) And a second reference line (37) along the lateral short side (34), and the first reference line (36) along the two longitudinal long sides (33) and the two lateral short sides (34) The second reference line (37) is enclosed to form a rectangle, and the first reference line (36) forms the long side of the rectangle, and the second reference line (37) forms the rectangle The short side reduces the length of the longitudinal long side (33) to 20%~60% of the length of the rectangular long side formed by the first reference line (36), and reduces the length of the lateral short side (34) to The short side of the rectangle formed by the second reference line (37) is 20%~80% of its length, or the author can define a tangent line (38) passing through the arc edge (35), and make the first reference line (36) ) An angle (θ) of about 5-40 degrees is formed between the tangent line (38) adjacent to it, and the rectangle formed by the two first reference lines (36) and the second reference lines (37) The corners of the four ends of the drum-shaped tooth profile each form a notch (39) with a substantially right-angled triangle, and the notch (39) of the substantially right-angled triangle forms a concave arc at the oblique side to meet the drum The shape and position of the arc edge (35) of the profiled tooth profile correspond to each other, so that the drum profile of the tooth tip (322) extends to the root (321).
藉此,係同樣可使本創作之該另一實施例其鏈齒(32)之鼓型齒頂(322)的縱向長邊(33)長度,減少為現有之鏈齒(4)其矩型齒頂(41)之縱向長邊(42)長度的20%〜60%,另使本創作該另一實施例其鏈齒(32)之鼓型齒頂(322)的橫向短邊(34)長度,減少為現有鏈齒(4)其矩形齒頂(41)之橫向短邊(43)長度的20%〜80%。請一併參閱第六圖所示,於此,當本創作之該另一實施例之鏈輪(3)與鏈條(2)進行組配時,其鏈齒(32)之弧邊(35)處係會與鏈條(2)之齒孔(23)形成有適當間隙,以減少與鏈條(2)其鏈片(21)及鏈滾(22)的碰撞磨擦面積,而同樣達到降低鏈輪(1)與鏈條(2)的傳動噪音及提高鏈輪(1)與鏈條(2)傳動順暢性等效益。In this way, the length of the longitudinal long side (33) of the drum-shaped tooth tip (322) of the sprocket (32) of the other embodiment of the invention can also be reduced to the rectangular shape of the existing sprocket (4) 20%~60% of the length of the longitudinal long side (42) of the addendum (41), and the transverse short side (34) of the drum-shaped addendum (322) of the sprocket (32) of this embodiment The length is reduced to 20%~80% of the length of the transverse short side (43) of the rectangular tooth top (41) of the existing sprocket (4). Please also refer to the sixth figure. Here, when the sprocket (3) and the chain (2) of the other embodiment of the invention are assembled, the arc edge (35) of the sprocket (32) The system will form an appropriate gap with the perforation (23) of the chain (2) to reduce the collision friction area with the chain (2), its chain plate (21) and chain roller (22), while also reducing the sprocket ( 1) The transmission noise with the chain (2) and the benefits of improving the smoothness of the transmission between the sprocket (1) and the chain (2).
前述之實施例或圖式並非限定本創作之鏈輪降噪結構實施態樣,凡所屬技術領域中具有通常知識者所為之適當變化或修飾,皆應視為不脫離本創作之專利範疇。The foregoing embodiments or drawings do not limit the implementation of the sprocket noise reduction structure of this creation, and any appropriate changes or modifications by those with ordinary knowledge in the technical field should be deemed not to deviate from the patent scope of this creation.
由上述結構及實施方式可知,本創作係具有如下優點:It can be seen from the above structure and implementation that the creative department has the following advantages:
1.本創作之鏈輪降噪結構係使鏈輪之鏈齒形成鼓型構造,藉此,以縮減鏈齒與鏈條的碰撞磨擦面積,而達到有效降低鏈輪與鏈條傳動時因碰撞磨擦產生的噪音者。1. The noise reduction structure of the sprocket in this creation is to make the sprocket teeth form a drum structure, thereby reducing the collision friction area of the sprocket and the chain, and effectively reducing the collision friction caused by the sprocket and the chain transmission. Noisemaker.
2.本創作之鏈輪降噪結構係使鏈輪之鏈齒呈鼓型構造,依此,以縮減本創作之鏈齒與鏈條的碰撞磨擦面積,而達到有效提高鏈輪與鏈條傳動順暢性等效益。2. The noise reduction structure of the sprocket of this creation is to make the sprocket of the sprocket to be a drum-shaped structure, according to this, to reduce the collision friction area of the sprocket of the creation and the chain, and to effectively improve the smoothness of the sprocket and chain transmission And other benefits.
綜上所述,本創作之實施例確能達到所預期功效,又其所揭露之具體構造,不僅未曾見諸於同類產品中,亦未曾公開於申請前,誠已完全符合專利法之規定與要求,爰依法提出新型專利之申請,懇請惠予審查,並賜准專利,則實感德便。In summary, the embodiments of this creation can indeed achieve the expected effect, and the specific structure disclosed by it has not only not been seen in similar products, nor has it been disclosed before the application, and has fully complied with the provisions of the Patent Law and To request that you file an application for a new type of patent in accordance with the law, pleading for the review and granting the patent, you feel truly virtuous.
<本創作><This creation>
(1)‧‧‧鏈輪(1) ‧‧‧ sprocket
(11)‧‧‧鏈輪本體(11) ‧‧‧ sprocket body
(12)‧‧‧鏈齒(12) ‧‧‧ sprocket
(121)‧‧‧齒根(121) ‧‧‧ tooth root
(122)‧‧‧齒頂(122) ‧‧‧ addendum
(13)‧‧‧縱向長邊(13) ‧‧‧ Long longitudinal side
(14)‧‧‧橫向短邊(14) ‧‧‧ Short side
(15)‧‧‧斜邊(15) ‧‧‧ Hypotenuse
(16)‧‧‧第一基準線(16) ‧‧‧ First baseline
(17)‧‧‧第二基準線(17) ‧‧‧ Second baseline
(18)‧‧‧切線(18) ‧‧‧ Tangent
(19)‧‧‧缺口(19) ‧‧‧ Notch
(2)‧‧‧鏈條(2) ‧‧‧Chain
(21)‧‧‧鏈片(21) ‧‧‧Chain
(22)‧‧‧鏈滾(22) ‧‧‧Chain Roll
(23)‧‧‧齒孔(23) ‧‧‧ Perforated
(3)‧‧‧鏈輪(3) ‧‧‧ sprocket
(31)‧‧‧鏈輪本體(31) ‧‧‧ sprocket body
(32)‧‧‧鏈齒(32) ‧‧‧ sprocket
(321)‧‧‧齒根(321) ‧‧‧ tooth root
(322)‧‧‧齒頂(322) ‧‧‧ addendum
(33)‧‧‧縱向長邊(33) ‧‧‧ Long longitudinal side
(34)‧‧‧橫向短邊(34) ‧‧‧ Short side
(35)‧‧‧弧邊(35) ‧‧‧
(36)‧‧‧第一基準線(36) The first reference line
(37)‧‧‧第二基準線(37) Second base line
(38)‧‧‧切線(38) ‧‧‧ Tangent
(39)‧‧‧缺口(39) ‧‧‧ Notch
<現有><existing>
(4)‧‧‧鏈齒(4) ‧‧‧ sprocket
(41)‧‧‧齒頂(41) ‧‧‧ addendum
(42)‧‧‧縱向長邊(42) ‧‧‧ Longitudinal
(43)‧‧‧橫向短邊(43) ‧‧‧ Short side
(5)‧‧‧鏈條(5) ‧‧‧Chain
(51)‧‧‧鏈片(51) ‧‧‧Chain
(52)‧‧‧鏈滾(52) ‧‧‧Chain Roll
(53)‧‧‧齒孔(53) ‧‧‧ Perforated
第一圖:本創作之鏈輪局部放大立體圖The first picture: a partially enlarged perspective view of the sprocket of this creation
第二圖:本創作之鏈齒之齒頂正視圖The second picture: front view of the crest of the chain teeth of this creation
第三圖:本創作之使用狀態剖視圖The third picture: the cross-sectional view of the use state of this creation
第四圖:本創作之另一實施例鏈輪局部放大立體圖The fourth picture: another partially enlarged perspective view of the sprocket of another embodiment of the creation
第五圖:本創作之另一實施例鏈齒之齒頂正視圖Fifth picture: another front view of the tooth top of the sprocket according to another embodiment of this creation
第六圖:本創作之另一實施例使用狀態剖視圖Figure 6: Cross-sectional view of the working state of another embodiment of the creation
第七圖:現有之使用狀態剖視圖Figure 7: Cross-sectional view of the existing use state
(1)‧‧‧鏈輪 (1)‧‧‧Sprocket
(11)‧‧‧鏈輪本體 (11)‧‧‧Sprocket body
(12)‧‧‧鏈齒 (12)‧‧‧Chain
(121)‧‧‧齒根 (121)‧‧‧Root
(122)‧‧‧齒頂 (122)‧‧‧Tooth top
Claims (8)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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TW108213271U TWM589161U (en) | 2019-10-07 | 2019-10-07 | Sprocket noise reduction structure |
DE202020104971.2U DE202020104971U1 (en) | 2019-10-07 | 2020-08-27 | Sprocket with noise reduction structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW108213271U TWM589161U (en) | 2019-10-07 | 2019-10-07 | Sprocket noise reduction structure |
Publications (1)
Publication Number | Publication Date |
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TWM589161U true TWM589161U (en) | 2020-01-11 |
Family
ID=69944144
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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TW108213271U TWM589161U (en) | 2019-10-07 | 2019-10-07 | Sprocket noise reduction structure |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE202020104971U1 (en) |
TW (1) | TWM589161U (en) |
-
2019
- 2019-10-07 TW TW108213271U patent/TWM589161U/en unknown
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2020
- 2020-08-27 DE DE202020104971.2U patent/DE202020104971U1/en active Active
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