Matching power

A) motor application: conventional 120 motor 650W (35H) -1000W (50H);

The motor speed was 3100-3300RPM;

Weak magnetic 120 motor 800W (30H) -1000W(40H)

The motor speed is 4,800-5200rpm;

B) application of controller: 15-18 current 40a-50a

 Product parameters

1. Rear axle speed ratio: 1:9.8&1:23; 12.7-26.7 (match motor with different speed)

2. Motor interface: 120 long tooth motor, 5 hole interface

3. Fuel injection of rear axle: N460 150ml;

4. Model of half shaft: 6205 bearing half shaft, 18 tooth spline;

5. Brake model: 180 disc brake, 160 mechanical brake, 180 mechanical brake;

 Product requirements

1. Rear axle appearance

A) smooth appearance, no dirt, grease, glue, etc., no exposed bottom, bubble, flow mark, pitting, orange peel, etc.;

B) the welding shall be firm and reliable, and the welding seam shall be uniform and smooth. Defects such as false welding, fake welding and crack shall not be allowed, and no cracks shall be allowed in the aluminum shell;

C) on the surface of the bridge shell, customer name, product specification, production date and other information shall be marked according to customer requirements;

2. Rear axle size

A) length of rear bridge: L±3mm;

B) center distance of lifting lug: M±2mm;

C) lug symmetry: distance difference between lug and circular plate ≤2mm;

D) parallelism of lifting lug: Angle difference ≤2°;

E) center distance of wheel mounting screws: 100±0.1mm;

F) length of wheel mounting bolt: exposed end 22±0.5mm; 26 / + / - 0.5 mm;

3. Noise requirements

A) decibel requirements: 1:9.8&23 rear axle no-load noise ≤76 db, (tape measure 400mm 48V800W 3100RPM motor);

1. 12.6-26 back axle no-load noise ≤76 db, (tape measure 400mm 60V800W 5000RPM motor);

B) audio requirements: the rear bridge (forward, reverse, accelerate and slide) has no loud sound, no loud sound, no roaring, low voice;

4. Braking requirements

A) braking mode: 180 disc brake

1) dish brake beat: end beat ≤0.3mm;

Side swing ≤0.4mm;

2) braking movement: no obvious movement;

3) brake rotation resistance: smooth rotation without resistance, no shaft rotation;

4) braking area: the contact area between brake disc and brake shoe reaches the design requirements;

5) disc brake test: pump installation is over, the lower pump locks the disc brake, and the upper pump locks the car

6) braking requirements:

I. empty car stops to brake the wheels and drag, both wheels are locked;

II. Parallel cement road, vehicle 300KG, load 0KG, vehicle speed ≤35KM/H, braking distance ≤ 10m;

III. Parallel cement road, vehicle 300KG, load 200KG, vehicle speed ≤32KM/H, braking distance ≤ 12m;

IV. Parallel cement road, vehicle 300KG, load 500KG, vehicle speed ≤30KM/H, braking distance ≤ 12m;

B) braking mode: 160 mechanical brake

1) braking Angle: mechanical brake 20-30° (special order production);

2) effective braking travel: the critical value of the friction brake block and the Angle difference after braking is within 10 degrees (travel difference is 12mm);

3) braking movement: no obvious movement;

4) brake runout: end runout ≤0.3mm;

Side swing ≤0.4mm;

5) brake rotation resistance: smooth rotation without resistance, no shaft rotation;

6) braking area: double-sided contact area, more than 70%;

7) braking requirements:

I. empty car stops to brake the wheels and drag, both wheels are locked;

II. Parallel cement road, vehicle 300KG, load 0KG, vehicle speed ≤35KM/H, braking distance ≤ 10m;

III. Parallel cement road, vehicle 300KG, load 200KG, vehicle speed ≤32KM/H, braking distance ≤ 12m;

IV. Parallel cement road, vehicle 300KG, load 500KG, vehicle speed ≤30KM/H, braking distance ≤ 12m;

C) braking mode: 180 mechanical brake

1) braking Angle: mechanical brake 20-30° (special order production);

2) effective braking travel: the critical value of the friction brake block and the Angle difference after braking is within 10 degrees (travel difference is 12mm);

3) braking movement: no obvious movement;

4) brake runout: end runout ≤0.3mm;

Side swing ≤0.4mm;

5) brake rotation resistance: smooth rotation without resistance, no shaft rotation;

6) braking area: double-sided contact area, more than 70%;

7) braking requirements:

I. empty car stops to brake the wheels and drag, both wheels are locked;

II. Parallel cement road, vehicle 300KG, load 100KG, vehicle speed ≤35KM/H, braking distance ≤ 9m;

III. Parallel cement road, vehicle 300KG, load 200KG, vehicle speed ≤32KM/H, braking distance ≤ 10m;

IV. Parallel cement road, vehicle 300KG, load 300KG, vehicle speed ≤30KM/H, braking distance ≤ 10m;