1、 In depth analysis of the working characteristics of the lifting mechanism (organization) of the lifting platform
The lifting mechanism of the lifting platform is driven by a crank connecting rod mechanism. The front and rear lifting platforms of the machine are supported by rods to ensure their synchronized fitness movement. Because the crank connecting rod mechanism is located in a pit and works in harsh environments, it is of utmost importance for maintenance and upkeep.
1. Crank connecting rod mechanism
The crank connecting rod mechanism is composed of the engine crankshaft, crankshaft, active side rocker, passive side rocker, and support rod. The motor transmits the torque to the engine crankshaft according to the reducer, and the crankshaft is connected to the guide rod based on the fork bearing seat, and then pushes the rocker to exercise.
2. In depth analysis of balanced balance block weight
The lifting platform table is balanced using balance weights, which are installed on the balance beam connected to the table support plate rod. It pushes the support plate rod to make it feel like a vertical fitness exercise. When balancing the lifting platform, it should be ensured that the balance block is balanced with the lifting platform table and the slab on the table when it swings to the middle position. The lifting platform is in an unbalanced state when it is smaller than the midpoint, and in an unbalanced state when it is higher than the midpoint. This type of balancing method is beneficial for the operation of the motor; When in an unbalanced state, the unnecessary torque of the lifting mechanism can assist in starting the motor. When in an unbalanced state, the torque caused by the force of the table and the blade can assist in the braking system of the motor.
2、 Maintenance and upkeep of the lifting mechanism (organization)
1. For a part of the joystick, once the viewing angle of the lifting platform is adjusted, the inclined iron should be firmly selected and the inclined pin screw should be tightened. In regular inspections of machinery and equipment, the inclined iron and inclined pin screws are of utmost importance for inspection. It is very important to avoid situations where the angle of view of the lifting platform changes due to the loosening of the diagonal pin screws and the movement of the diagonal iron caused by continuous impact loads. In addition to ensuring sufficient compressive strength, the connecting arc should also be sufficiently large. The rotating cover at the top of the rocker head in the assembly line creates a detailed closed frame shear wall for all rocker rods, which plays a key role in improving the overall compressive strength of the rocker. Ensure excellent lubrication of the copper tiles inside the shaft pin and shaft sleeve, reduce damage to the copper tiles and shaft pin, improve stress characteristics, and increase the lifespan of the joystick.
2. In depth analysis of balanced blocks
Due to the roller conveyor on the lifting platform, the specific value of the net weight of the slab is usually far from the basic theory of the design scheme. Under different slab effects, the balance of the lifting platform may be too light or too heavy, resulting in different braking torques in the upper and lower parts, uneven fitness movements, and increased dynamic torque, which can easily cause the connecting screws between the weak foundation of the crankshaft and the engine crankshaft to break. In order to overcome this defect, our company has made certain improvements in the organization and balance beam of the hydraulic lifting platform. The key is to extend the orientation of the fixed slot balance beam of the original balance block, and change the torque of the balance block according to the position of the moving balance block. This method is convenient to adjust, reliable to fix, and very useful for the balance of the rear joint lifting platform.
3. Other levels
The lifting mechanism is a low-level structure that bears tensile and compressive loads. Due to the presence of certain gaps, the damage at each joint is aggravated under the impact effect of the load. Therefore, it is necessary to improve lubrication and avoid the entry of water and oxygen particles. When the copper tiles at each joint are damaged beyond a certain gap, they should be replaced immediately.
The posture of the lifting platform is frequent, and the impact load is high. The connecting anchor bolts (composed of the top of the head and the extruder screw) at various positions in the lifting mechanism are prone to loosening and breaking. This type of wire is often subjected to alternating loads and is easily exhausted and ineffective under the effects of tension, compression, and other forces. Therefore, this type of screw should be tightened and replaced on time, especially the crankshaft fork socket screw.
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