Device for detecting service life of transmission shaft of horizontal motor of automobile electric seat

The utility model relates to an automobile electric seat horizontal motor transmission shaft life detection device, which belongs to the field of automobile electric seat detection and comprises a base, a balancing weight, a motor power line and a PLC (programmable logic controller). A first sensor, a second sensor, a third sensor and a fourth sensor are sequentially and fixedly arranged on one side of the base from front to back; a first telescopic pin, a second telescopic pin, a third telescopic pin and a fourth telescopic pin are fixedly arranged on the inner sides of the first sensor, the second sensor, the third sensor and the fourth sensor respectively; the first sensor, the second sensor, the third sensor, the fourth sensor, the first telescopic pin, the second telescopic pin, the third telescopic pin, the fourth telescopic pin, the first detector, the second detector and a motor power line are electrically connected with the PLC. Time-consuming and labor-consuming manual operation is avoided, and the