摘 要

介紹了雙向自增力式制動器中的拉索型和拉桿型制動器的制動間隙自調(diào)裝置的結(jié)構(gòu)和工作原理；對領(lǐng)從蹄式制動器的螺紋推桿型制動間隙自調(diào)裝置、棘輪型制動間隙自調(diào)裝置和凸輪型制動間隙自調(diào)裝置的結(jié)構(gòu)和工作原理進行了分析和研究。
設(shè)計了一種新型的制動間隙自調(diào)裝置，該裝置可用于轎車和小型汽車上使用的輪缸式制動器。該裝置利用近似于凸輪的限位塊和自調(diào)銷放大了制動間隙，使得制動間隙的調(diào)整更方便。在限位塊上的輪齒和裝置中的棘爪嚙合，實現(xiàn)了制動間隙的階躍式調(diào)整。
設(shè)計了限位塊、自調(diào)銷、螺釘和棘爪的參數(shù)。
利用AutoCAD將自調(diào)裝置的安裝位置和自調(diào)裝置中的各零件參數(shù)進行了二維表達。還用了Pro/E將制動器的局部三維圖表達出來。


關(guān)鍵詞：輪缸式制動器，制動間隙，自動調(diào)整，限位塊，棘爪



















ABSTRACT
The construction and working principle of brake clearance self-adjusting devices for the cable actuated and lever actuated type brakes of the double direction self servo brakes are described in detail. Meanwhile the construction and working principle of brake clearance self-adjusting devices of screw push rod type ,ratchet gear type and cam type for brakes of leading and trailing brake shoe type are abalysed and studied.
Design a new brake clearance self-braking devices,the device can be used for the wheel brake cylinder used for cars. The devices use a limit block which similar to cam and a self-pin enlarg the brake clearance,brought easier to adjust brake clearance.The meshing of the tooth on the limit block and pawl, implementation brake clearance step-adjustment.
Design the parameters of the limit block,self-pin,screws and the pawl.
Use the AutoCAD expression 2D drawings of the self-adjusting installation location and the parameters of all parts of the self-adjusting. local 3D view of the brake by Pro/E.


Key words：Wheel brake cylinder, Brake Clearance, Self-adjuting, Limit Block, Pawl
















摘 要 I
ABSTRACT II
1 引言 1
1.1輪缸式制動器制動間隙自調(diào)裝置作用 1
1.2輪缸式制動器制動間隙自調(diào)裝置發(fā)展及現(xiàn)狀 2
1.2.1自增力式制動器制動器間隙自調(diào)裝置發(fā)展及現(xiàn)狀 2
1.2.2領(lǐng)從蹄式制動器制動間隙自調(diào)裝置發(fā)展及現(xiàn)狀 2
1.3課題內(nèi)容 2
2 輪缸式制動器制動間隙自調(diào)裝置的結(jié)構(gòu)與原理 4
2.1 領(lǐng)從蹄式制動器制動間隙自調(diào)裝置的結(jié)構(gòu)與原理 4
2.1.1 螺紋推桿型制動間隙自調(diào)裝置 4
2.1.2 棘齒型制動間隙自調(diào)裝置 5
2.1.3 拉桿－推桿型制動間隙自調(diào)裝置 6
2.2 自增力式制動器制動間隙自調(diào)裝置結(jié)構(gòu)與原理 8
2.2.1 解除制動致動拉索型制動間隙自調(diào)裝置 9
2.2.2 施加制動致動拉索型制動間隙自調(diào)裝置 10
2.2.3 解除制動致動杠桿型制動間隙自調(diào)裝置 11
2.2.4 施加制動致動杠桿型制動間隙自調(diào)裝置 11
3 制動間隙自調(diào)裝置方案設(shè)計 14
3.1初步方案設(shè)計 14
3.1.1 方案一 14
3.1.2 方案二 14
3.1.3 方案三 15
3.2 最終方案設(shè)計 15
3.2.1方案比較 15
3.2.2最終方案 15
3.3裝置結(jié)構(gòu)及工作原理 15
3.4裝置特點 16
4 限位塊－棘爪型制動間隙自調(diào)裝置參數(shù)設(shè)計 18
4.1限位塊組件參數(shù)設(shè)計 18
4.1.1 限位塊組件基本參數(shù)設(shè)計 18
4.1.2 限位塊齒參數(shù)設(shè)計 19
4.1.3 自調(diào)銷參數(shù)設(shè)計 19
4.1.4 螺釘參數(shù)設(shè)計 20
4.2 棘爪參數(shù)設(shè)計 20
5 制動間隙自調(diào)裝置的結(jié)構(gòu)設(shè)計 22
6 結(jié)論 23
致謝 24
參考文獻 25