剎車片廠家很多，但了解剎車片背板最上方會有一個倒角作用的不多。我們知道，許多剎車片背板最上方會有一個倒角。該倒角的作用是什么？今天我們就透過zhuanli來分析。

zhuanli號為EP2679852的zhuanli“Brake backing plate with step-chamfer（一種帶臺階倒角的剎車片背板）”公開了一種新型的倒角。雖然此zhuanli中說的是新型倒角，但通過文中的說明，我們可以看到共同的作用。

A typical disc brake assembly includes a rotor whichis secured to the wheel of the vehicle for rotation therewith. The rotor has apair of opposed friction plates which are selectively engaged by portions of acaliper assembly. The caliper assembly is slidably supported by pins secured toan anchor plate. This anchor plate is in turn secured to a non-rotatablecomponent of the vehicle, such as the vehicle frame. A pair of brake pads aredisposed in the caliper assembly on opposite sides of the rotor.

典型的盤式制動器組件包括一轉(zhuǎn)子，該轉(zhuǎn)子固定在車輛的車輪上以便與之旋轉(zhuǎn)。轉(zhuǎn)子有一對對置摩擦片，它們由卡鉗組件的部分有選擇地嚙合。卡鉗組件可通過固定在錨板上的銷釘滑動地支承。該錨板依次固定到車輛的非旋轉(zhuǎn)部件，例如車架。一對剎車片設(shè)置在轉(zhuǎn)子兩側(cè)的卡鉗中。

The brake caliper is typically a cast solid piece ofiron, steel  aluminum. The casting process leaves rounded interior edges. Inorder to provide corner clearance with these rounded interior edges, the brakepads, themselves planar  angular, are frequently chamfered on one edge wherethe mounted pad faces the interior corner of the caliper.

制動鉗通常是鑄鐵、鋼或鋁鑄造件。鑄造過程留下了圓潤的內(nèi)部邊緣。為了給制動鉗的內(nèi)部圓角留出間隙，在剎車片面向制動鉗內(nèi)部圓角的邊緣通常會留有倒角。

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        The classic chamfer on the backing plate portion ofthe brake pad is an angled surface on the leading edge of the plate thatsubstantially mirrors ( at least provides complementary geometry with) therounded angled surface in the interior corners of the caliper. The chamfer andthe corner of the caliper, lacking points of potential unwanted contact, thushave clearance  each other.

剎車片背板上的倒角通常是具有一定角度的平面，其與制動鉗內(nèi)部圓角大體上相映射（或至少是一互補(bǔ)的形狀）。背板倒角與制動鉗的圓角由于沒有潛在的不必要的接觸點(diǎn)，因此彼有間隙。

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However, such chamfered edges, while elegant , are noteasy to produce, particularly on brake backing plates  a rounded  otherirregular shaped leading edge.

然而，這種美觀的倒角不易制造，特別是當(dāng)背板上方是圓形或其它不規(guī)則形狀的邊緣時(shí)。

此zhuanli將倒角由通常的斜角設(shè)計(jì)改為臺階性，以便于容易制造。

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OK，總結(jié)下，剎車片背板設(shè)置倒角原因非常簡單，是因?yàn)榭ㄣQ內(nèi)側(cè)拐角處有圓角，剎車片上如不設(shè)置倒角，裝車時(shí)背板邊緣就可能會與卡鉗拐角處的圓角發(fā)生干涉，影響正常制動或產(chǎn)生振動、噪音等。

       作為剎車片廠家科普推廣很重要，你get the point了嗎？