DLZ Hydraulic And Wheel Brakes

1. The utility model belongs to the technical field of brakes, in particular to an electric wheel brake.

2. Electric wheel brake, which is directly driven by electric power, is mainly used for windproof of outdoor large and medium-sized cranes and port loading and unloading machinery in working state and auxiliary windproof braking in non-working state; Generally, it is only used on passive wheels and directly braked, which can effectively prevent the braked wheels from rolling displacement under the action of wind.

3. The existing electric wheel brake usually uses a special screw rod to realize the conversion between torque and thrust, which has complex structure, high manufacturing cost, inconvenient processing and maintenance, difficult assembly and unstable working performance, so it needs to be improved.

4. In order to solve the above technical problems, the utility model provides an electric wheel brake, which comprises an electric thrust device, a base and two brake arms, wherein two sides of the base are respectively provided with brake arm mounting grooves, the middle parts of the two brake arms are respectively rotatably connected in the brake arm mounting grooves on the corresponding sides through the base shaft, and each brake arm is respectively screwed with a back-off bolt matched with the brake arm mounting grooves on the corresponding side. The front end of each brake arm is respectively connected with a brake shoe through a shoe shaft, two following spring seats are respectively arranged on both sides of the bottom of the base, each following spring seat is respectively provided with a following spring, and one end of the two following springs far away from the following spring seat is respectively connected with the shoe arm of the brake shoe on the corresponding side, and the following arrow is used for ensuring that the shoe surfaces of the two brake shoes correspond to each other, so that the shoe surfaces are parallel to the corresponding wheels, and preventing the brake shoe from colliding with the wheels when the brake is opened; The electric thrust device is arranged at the rear end of the base, and the rear ends of the two brake arms are respectively rotatably connected with the fixed end and the telescopic end of the electric thrust device;

5. The electric thrust device comprises a reduction gear box, a camshaft, a hollow cam, a guide assembly and a reset assembly, wherein both ends of the reduction gear box are detachably connected with a reducer cover and an end cover respectively; the camshaft, the hollow cam, the guide assembly and the reset assembly are all arranged in the reduction gear box; a baffle plate is integrally formed on the outer wall of the middle part of the camshaft; one side of the baffle plate is provided with a driven cam, and the other side of the baffle plate collides with the reset assembly; The reset assembly is slidably sleeved on the camshaft, the outer side of the end cover is provided with a docking seat, and the inner side is provided with a guide sleeve, wherein the docking seat is rotatably connected with a brake arm corresponding to the fixed end of the electric thrust device through a base shaft, the inner diameter of the guide sleeve is matched with the outer diameter of the camshaft, and the camshaft is axially connected with the guide sleeve in a sliding way through the guide assembly, and one end of the reset assembly far from the baffle plate collides with the guide sleeve,

The hollow cam is rotatably sleeved on the camshaft and arranged on the driven cam side of the baffle plate; one end of the hollow cam corresponding to the driven cam is provided with a driving cam matched with the driven cam; the lower end of the reducer cover is provided with a through hole; one end of the hollow cam far away from the driving cam is rotatably connected with the through hole wall of the reducer cover through a slewing bearing; a toothed disc is arranged on the outer wall of the middle part of the hollow cam; A thrust bearing sleeved on the outer wall of the hollow cam is arranged between the toothed plate and the reducer cover, a reduction gear set capable of driving the toothed plate to rotate is arranged in the reducer case, the input end of the reduction gear set is connected with a driving motor with an electrified brake through a gear shaft in a transmission way, the driving motor is connected outside the reducer case, and the driving motor matched with the reduction gear set and the reset assembly can drive the driving cam and the driven cam to move away from or close to each other, thereby driving the camshaft to move axially along the through hole; The end of the camshaft far away from the end cover is connected with an adjusting rod in a threaded way, and a sliding block with adjustable position is connected with the adjusting rod in a sliding way, and the upper and lower ends of the sliding block are respectively rotatably connected with a brake arm corresponding to the telescopic end of the electric thrust device through a threaded locking shaft.

Hot Tags: dlz hydraulic and wheel brakes, China, manufacturers, supplier, factory, customized