一种高耐磨的传动系统

Abstract

本实用新型公开了一种高耐磨的传动系统，包括主动轮单元、从动轮单元和同步带单元，所述主动轮单元包括主动轮本体及多个主啮合槽部；所述从动轮单元包括从动轮本体及多个从啮合槽部；所述同步带单元包括同步带本体及多个同步带啮齿部；所述主啮合槽部、从啮合槽部分别与所述同步带啮齿部一一对应设置，所述同步带啮合齿部的根部与所述主啮合槽部、从啮合槽部之间形成避让间隙，在垂直于所述同步带带宽方向上，所述同步带啮合齿部与主啮合槽部、从啮合槽部之间的啮合周长为L1,所述避让间隙周长为L2，L1与L2构成单个同步带啮齿部的啮合总周长L3，所述L1与L3的比值在0.96‑0.98之间。本实用新型利用啮合部处的间隙设计，能够实现低磨损、长寿命的的优点。

Claims

1. A high wear resistant transmission system characterized in that, It includes a driving pulley unit, a driven pulley unit, and a synchronous belt unit that drives the driving pulley unit and the driven pulley unit. The drive wheel unit includes a drive wheel body, and a plurality of main meshing grooves are formed on the outer edge of the drive wheel body; The driven wheel unit includes a driven wheel body, and a plurality of meshing grooves are formed on the outer edge of the driven wheel body; The synchronous belt unit includes a synchronous belt body, and a plurality of synchronous belt teeth are formed on the side of the synchronous belt body facing the driving pulley unit and the driven pulley unit. The main meshing groove and the secondary meshing groove are respectively provided in a one-to-one correspondence with the synchronous belt meshing teeth. The root of the synchronous belt meshing teeth forms a clearance gap with the main meshing groove and the secondary meshing groove. In the direction perpendicular to the width of the synchronous belt, the meshing circumference between the synchronous belt meshing teeth and the main meshing groove and the secondary meshing groove is L1, and the clearance circumference is L2. L1 and L2 constitute the total meshing circumference L3 of a single synchronous belt meshing tooth. The ratio of L1 to L3 is between 0.96 and 0.

98.

2. The high wear resistant transmission system of claim 1, wherein, After the synchronous belt unit meshes with the drive pulley unit, a drive pulley wrap angle is formed. The drive pulley wrap angle is formed by the line connecting two points tangent to the outer edges of the synchronous belt body and the drive pulley body. The drive pulley wrap angle is between 160° and 162°.

3. The high wear resistant transmission system of claim 1, wherein, After the synchronous belt unit meshes with the driven pulley unit, a driven pulley wrap angle is formed. The driven pulley wrap angle is formed by the line connecting two points tangent to the outer edges of the synchronous belt body and the driven pulley body. The driven pulley wrap angle is between 197° and 199°.

4. The high wear resistant transmission system of claim 1, wherein, The driving wheel body is made of steel alloy, and the driven wheel body is made of aluminum alloy.

5. The high wear resistant transmission system of claim 1, wherein, The synchronous belt unit includes a toothed unit, a back unit, and a cord unit. The cord unit is pressed into the back unit. The toothed unit has a thickness D1 in the direction perpendicular to the width of the synchronous belt. The overall thickness of the synchronous belt is D2. The ratio between D1 and D2 is between 0.55 and 0.

7.

6. The high wear resistant transmission system of claim 5, wherein, The tooth unit includes a tooth body, a composite tooth cloth layer disposed on the outside of the tooth body, and a single tooth cloth layer; the composite tooth cloth layer includes a polytetrafluoroethylene layer and a nylon layer bonded together by a penetration process, the surface protrusions of the polytetrafluoroethylene layer can fill into the nylon layer, and the two ends of the composite tooth cloth layer are connected to a single tooth layer. The toothed unit includes a meshing part and a gap part. The meshing part includes a corresponding composite toothed cloth layer, and the gap part includes a corresponding single toothed layer. The meshing part has a cross-sectional perimeter of L1 in the direction perpendicular to the width of the synchronous belt, and the gap part has a cross-sectional perimeter of L2 in the direction perpendicular to the width of the synchronous belt. The ratio between L1 and L2 is between 0.95 and 1.

05.

7. The high wear resistant transmission system of claim 5, wherein, The cord unit comprises multiple carbon fiber tensile cords, each of which has a diameter between 0.8 and 2.0 mm and / or a twist between 30 tpm and 80 tpm.

8. The high wear resistant transmission system of claim 6, wherein, The wire rope unit extends along a width direction of the synchronous belt, and is arranged adjacent to a tooth root of the tooth portion body.

9. The high wear resistant transmission system of claim 5, wherein, The back unit further comprises a back layer, which is arranged in close contact with the outer end surface.

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