CAR-QC / T 25-2004 car dry friction clutch assembly technical conditions (1)

Dry friction clutch-type automobile assembly technical conditions -------------------------------------------------- ------------------------------ Scope 1 The standards for the automobile dry friction clutch assembly (including the built-driven assembly and assembly, hereafter referred to clutch) terms and definitions, technical requirements, test methods, testing rules, signs, packaging, transport and storage. This Standard applies to automobile dry friction clutch. 2 normative documents cited The following documents in the articles cited by the standards have become the standard provisions. All documents cited date of the Note, all its subsequent amendments alone (not including the contents of Correction) or revised edition of this standard are not applicable. However, under this standard to encourage the parties to reach an agreement on whether to use the latest version of these documents. Note date are not in the quoted document, and its latest version of the standard applicable to this. QC / T 27-2004 car dry friction clutch assembly bench test method 3 terminology and definitions The following terms and definitions apply to this standard. Separation 3.1 release travel itinerary The required condition, clutch engagement to fully complete from the time of separation from that (pole) itinerary. Separation of the 3.2 release load Separation process, the isolation imposed on the cover assembly that (pole) side of the force. 3.3-lift pressure out Isolation itinerary specified conditions, the work pressure-plane displacement of the points minimum. 3.4 of pressure-pressure plate parallelism tilt Isolation itinerary specified conditions, the work pressure-plane displacement of the points in the difference between the maximum and minimum value. 3.5 coefficient of sliding friction sliding coefficient of friction Isolated from the clutch engagement process, the pressure and friction disc surface film to be completely friction between the surface bonding period, sliding friction torque corresponding to the coefficient of friction. 3.6 Isolation drag torque drag torque The required condition, a follower disc assembly provides both the distance between parallel plates, driven rotating disk assembly can free the minimum torque. 3.7 Isolation drag itinerary free movement The required condition, a follower disk assembly between two parallel plates, the requirement imposed follower disk assembly torque, driven rotating disk assembly can free the two parallel plates with minimum spacing requirements of the state load clamping distance of the poor. 3.8 Anti-Burn a performance adhesive behavior The required temperature, humidity, a clutch Anti-Burn capacity. 3.9 axial compression of cushion resilience The pre-load in a certain premise follower disk assembly imposed on the axial load, the change of its thickness. 3.10 axial compression characteristics cushion deflection characteristic The pre-load in a certain premise follower disk assembly imposed on the axial load, and its thickness changes in the relationship between the axial load. 4 technical requirements 4.1 features cover assembly Isolation refers to 4.1.1 (pole) and the installation of a high degree of deviation from that (pole) end of beating The required condition, Isolation refers to build assembly (pole) and the installation of a high degree of deviation of beating End Table 1 should be not more than the corresponding number Value. Table 1 refers to the separation cover assembly (pole) and the installation of a high degree of deviation is specified numerical End beating mm 4.1.2 separation and isolation of the trip Isolation and separation of the trip should meet the technical documentation requirements. 4.1.3 load characteristics Load characteristics should comply with technical documentation requirements. 4.1.4 pressure out - Pressure-out should meet the technical documentation requirements. 4.1.5 pressure tilt of the disc Pressure should be set in line with the tilt of technical documentation requirements. 4.1.6 unbalance The maximum allowable imbalance of 50 M1 (g mm). M1 cover assembly for the quality of a few kilograms. When M1 is less than 3 kg, the maximum allowable amount for the imbalance of 150 g mm. 4.2 follower disk assembly features 4.2.1 axial compression characteristics The axial compression characteristics should be in line with technical documentation requirements. 4.2.2 thickness deviation and parallelism In require clamping force, driven disc assembly and the thickness of the parallel degree deviation in Table 2 should be consistent with the provisions. Table 2 follower disk assembly deviation and the thickness of the parallel provisions of numerical mm 4.2.3 reverse the damping characteristics Vibration characteristics should be consistent with reverse the technical documentation requirements. 4.2.4 Separation drag torque Isolation should not drag torque greater than the numerical Table 3 provides. Table 3 provides numerical separation drag torque 4.2.5 Separation drag itinerary Provisions for drag torque in Table 3 of the numerical conditions, the trip should be towed from not more than the technical documentation requirements set minimum pressure Lift. 4.2.6 unbalance The maximum allowable quantity imbalance of 120 M2 (g mm). M2 follower disk assembly for the quality of a few kilograms. When M2 is less than 1.5 kg, the maximum allowable imbalance of 1.8 g mm. 4.2.7 coefficient of sliding friction Various types of clutch requested by the coefficient of sliding friction should be consistent with provisions in Table 4. Table 4 provisions of the coefficient of sliding friction 4.2.8 wear resistance 4.2.8.1 by 320 ° C heat load tests, and another 1,000 4,000 Clutch cycle, there must be no friction on the surface crack, foaming, rivet outcrop, and other phenomena. 4.2.8.2 by 320 ° C heat load tests, and another 4,000 1,000 th off circle, friction wear tablets should be allowed to comply with the provisions in Table 5.