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Hydraulic locking structure of five-head bending hoop machine with convenient replacement


Release time:

2021-05-26

  Five-head bending hoop machineThe steel bar can be bent in different positions, which is a modification of the steel bar bending machine. The operating angle is wide, and it is suitable for stirrup processing in tunnels, bridges, buildings, prefabricated components and other projects. The existing head locking device of the five-head bending hoop machine includes a rear sliding plate and a front sliding plate, which are respectively slidably installed at both ends of the guide rail, a flat plate is fixedly installed between the front sliding plate and the rear sliding plate, and an elastic bottom plate and a hydraulic pipe are also installed between the elastic bottom plate and the flat plate. The hydraulic tube of the locking device drives the elastic bottom plate to press down the guide rail. In order to maintain a large locking force between the guide rail and the elastic bottom plate, the guide rail will generate static friction to prevent the head from moving, and the entire operation time is very short. The deformed elastic bottom plate can be restored to its original state after the impulse is eliminated, because the elastic bottom plate plays a buffering role. Although the machine head can maintain a large locking force, the elastic bottom plate is easily damaged by being squeezed for a long time, and the cost of replacing the elastic bottom plate is high.

 

五机头弯箍机

To this end, the technical staff research and development to provide a convenient replacement.Five-head bending hoop machineHydraulic locking structure. The hydraulic locking structure of the five-head bending hoop machine is realized through the following technical solutions: a hydraulic locking structure of the five-head bending hoop machine including hydraulic pipe, flat plate, front sliding plate, guide rail, rear sliding plate, rigid bottom plate and spring, The rear sliding plate and the front sliding plate are respectively slidably connected on both sides of the guide rail; the rigid bottom plate is located between the hydraulic pipe and the guide rail, and the piston abuts against the top surface of the rigid bottom plate; the front sliding plate and the rear sliding plate are provided with limit grooves near the guide rail; the clamping block is slidably connected in the limit groove, and the two ends of the rigid bottom plate are provided with clamping blocks; the upper end of the spring points to the clamping block and is located in the limit groove. When the hydraulic pipe is supplied with oil, the piston moves down to push the rigid base plate to squeeze the guide rail, and the clamping blocks on both sides of the rigid base plate press down the extrusion spring to lock the guide rail against the upper rigid base plate, and release the downward impulse of the locking cylinder.

After the spring force fails for a long time, the operator does not need a smooth rigid bottom plate, only needs to replace the spring, and the replacement cost is low. A connecting groove for accommodating a spring is arranged below the limiting groove, and the limiting groove is communicated with the connecting groove. When the hydraulic line is filled with oil, the spring will not tilt left and right and bend sideways during compression, and the spring will be squeezed and compressed downward along the connection groove. A steel ball is arranged in the connecting groove, the steel ball is located between the rigid bottom plate and the spring, and the upper end of the spring collides with the steel ball. When the piston rises, the spring pushes the steel ball upward to restore its original state due to its own elastic force, and the steel ball returns to its original position against the rigid bottom plate. The rolling contact area of the steel ball is large. If the spring is changed to directly contact the rigid bottom plate, the plane directly contacting the rigid bottom plate will produce greater friction because both will have corresponding wear, so the steel ball is more suitable for collision with the rigid bottom plate. The elastic force of the spring itself returns to the original state. When the piston rises, it pushes the steel ball upward, and the steel ball is embedded in the groove, pushing the rigid bottom plate back to the original position. The contact area between the steel ball and the rigid base plate is large, which improves the stability of the steel ball movement.

To sum up, the aboveFive-head bending hoop machineThe hydraulic locking structure has the following beneficial effects:

1. Through the setting of hydraulic pipe oil filling and spring, the rigid bottom plate squeezes the spring, and the piston presses down to squeeze the rigid bottom plate, release the pressing force of the locking cylinder, and abut against the rigid bottom plate, thereby quickly locking the guide rail;

2. The two ends of the rigid bottom plate are provided with clamping blocks, the spring is located in the limit slot, the clamping block is slidably connected in the limit slot, and the upper end points to the clamping block. After the spring force fails for a long time, the operator does not need a smooth rigid bottom plate, only needs to replace the spring, and the replacement cost is low.