Controllable connecting rod type differential motion balancing device and moving platform with same

The invention discloses a controllable connecting rod type differential motion balancing device. The controllable connecting rod type differential motion balancing device comprises a space seven-rod mechanism, a sliding block driving unit and a locking unit; the space seven-rod mechanism comprises a rack, a sliding block, a balance rod, two lateral rocking rods and two lateral connecting rods; the sliding block is connected with the rack through a moving pair, the balance rod is connected with the sliding block in a pivoted manner, the two lateral rocking rods and the rack form a coaxial rotary pair, and the two lateral connecting rods are connected with the balance rod and the lateral rocking rods through spherical hinges respectively; movement of the sliding block is driven and braked through the sliding block driving unit; and the locking unit is connected with the balance rod and can lock and release rotation of the balance rod. The invention further discloses a moving platform of the controllable connecting rod type differential motion balancing device; the rack is connected with a main vehicle body of the moving platform, and the two lateral rocking rods are connected with two walking parts of the moving platform. By means of the moving platform, enabled control over the differential motion balancing function and initiative adjustment on the pitch angle of the main vehicle body are achieved, and therefore the moving platform has the better terrain adaptability and the better stability.