A sensor mounting arrangement for a drum brake assembly of a heavy-duty vehicle comprising a sensor assembly mounted on a cam tube of the drum brake assembly. The cam tube is formed with an opening. The sensor assembly includes a detector that is at least partially disposed in or adjacent to the opening of the cam tube and a target that is disposed about an outer surface of a camshaft of the drum brake assembly.

A sensor mounting arrangement for a drum brake assembly of a heavy-duty vehicle comprising a sensor assembly mounted on a cam tube of the drum brake assembly. The cam tube is formed with an opening. The sensor assembly includes a detector that is at least partially disposed in or adjacent to the opening of the cam tube and a target that is disposed about an outer surface of a camshaft of the drum brake assembly.

A brake assembly includes a braked member that is coupable or coupled to the vehicle wheel for a joint rotation therewith about a rotational axis, the braked member having contact surfaces that are arranged at an axial distance from one another and a braking unit that comprises a brake force generator and at least two brake pads, the brake pads being positioned in between the contact surfaces, wherein the brake force generator is configured move the brake pads axially apart from one another, thereby bringing each brake pad into contact with one of the contact surfaces of the braked member.

A brake assembly includes a braked member that is coupable or coupled to the vehicle wheel for a joint rotation therewith about a rotational axis, the braked member having contact surfaces that are arranged at an axial distance from one another and a braking unit that comprises a brake force generator and at least two brake pads, the brake pads being positioned in between the contact surfaces, wherein the brake force generator is configured move the brake pads axially apart from one another, thereby bringing each brake pad into contact with one of the contact surfaces of the braked member.

A triboelectric generation apparatus based on a friction brake and a friction brake provide a simple structure with high reliability, a stable circuit, and high energy recovery efficiency. The triboelectric generation apparatus includes two sensing electrodes arranged in a first friction component of the friction brake. When the first friction component is in frictional contact with a second friction component, induced electric charges are generated on the two sensing electrodes. The induced electric charges are different. An electric charge collection circuit is connected to the sensing electrodes and is configured to store the induced electric charges. Storing the induced electric charges allows for the recovery of energy using a simple structure with high reliability.

A triboelectric generation apparatus based on a friction brake and a friction brake provide a simple structure with high reliability, a stable circuit, and high energy recovery efficiency. The triboelectric generation apparatus includes two sensing electrodes arranged in a first friction component of the friction brake. When the first friction component is in frictional contact with a second friction component, induced electric charges are generated on the two sensing electrodes. The induced electric charges are different. An electric charge collection circuit is connected to the sensing electrodes and is configured to store the induced electric charges. Storing the induced electric charges allows for the recovery of energy using a simple structure with high reliability.

A device for adjusting clearance of a drum brake has an extendable strut assembly having a toothed ring and arranged between first and second shoes cooperating with a braking surface of a drum and moved by an actuating device from a resting position, in which they are distanced from the braking surface, to a braking position, in which they abut against the braking surface. The device has a first lever assembly, a second lever assembly having a coupling portion, and a connecting member having a connecting seat. The coupling portion is coupled to the connecting seat with a predetermined functional clearance. When the first and second shoes move from the resting position, the coupling portion slides in the connecting seat with an idle stroke equal to the predetermined functional clearance without transmitting motion to the connecting member and the first lever assembly. The second lever assembly transmits motion to the connecting member after the coupling portion has covered the idle stroke.

A device for adjusting clearance of a drum brake has an extendable strut assembly having a toothed ring and arranged between first and second shoes cooperating with a braking surface of a drum and moved by an actuating device from a resting position, in which they are distanced from the braking surface, to a braking position, in which they abut against the braking surface. The device has a first lever assembly, a second lever assembly having a coupling portion, and a connecting member having a connecting seat. The coupling portion is coupled to the connecting seat with a predetermined functional clearance. When the first and second shoes move from the resting position, the coupling portion slides in the connecting seat with an idle stroke equal to the predetermined functional clearance without transmitting motion to the connecting member and the first lever assembly. The second lever assembly transmits motion to the connecting member after the coupling portion has covered the idle stroke.

An internal drum brake anti-falling device includes a carrier having an accommodating chamber and main shaft crossingly arranged in the accommodating chamber for supporting a rotating drum to autorotate, wherein the rotating drum has a life belt coiled thereon, a brake unit arranged at an end thereof, and a drum brake module, which comprises a base, mounted in the accommodating chamber, and a passive ring, mounted on the base. An outer diameter of the base defines a first ring surface configured in a concentric circle manner to the main shaft. An inner diameter of the passive ring defines a second ring surface, wherein an externally toothed ratchet teeth is arranged in a concentric circle manner on the second ring surface to allow the second ring surface and the first ring surface to be disposed opposite to and closely fitting to each other so as to allow the first ring surface and the second ring surface to sequentially generate maximum static friction force and kinetic friction force therebetween when the life belt drives the brake unit buckling with the ratchet teeth, so as to buffer the rotating drum and the life belt.

An internal drum brake anti-falling device includes a carrier having an accommodating chamber and main shaft crossingly arranged in the accommodating chamber for supporting a rotating drum to autorotate, wherein the rotating drum has a life belt coiled thereon, a brake unit arranged at an end thereof, and a drum brake module, which comprises a base, mounted in the accommodating chamber, and a passive ring, mounted on the base. An outer diameter of the base defines a first ring surface configured in a concentric circle manner to the main shaft. An inner diameter of the passive ring defines a second ring surface, wherein an externally toothed ratchet teeth is arranged in a concentric circle manner on the second ring surface to allow the second ring surface and the first ring surface to be disposed opposite to and closely fitting to each other so as to allow the first ring surface and the second ring surface to sequentially generate maximum static friction force and kinetic friction force therebetween when the life belt drives the brake unit buckling with the ratchet teeth, so as to buffer the rotating drum and the life belt.