An assembly that includes a housing with a chamber formed within a bore of the housing. The assembly further includes a center shaft disposed at least partially within the bore of the housing. The chamber includes a backing wedge, a sliding wedge, and a load spring. The sliding wedge is positioned to apply a force onto an angled contact surface of the backing wedge. The sliding wedge is also positioned to apply a frictional force to a rod portion of the center shaft. The load spring is compressed between a contact surface of the chamber and a contact surface of the sliding wedge. The load spring is positioned to apply a compressive force onto the contact surface of sliding wedge toward the angled contact surface of the backing wedge.

An assembly that includes a housing with a chamber formed within a bore of the housing. The assembly further includes a center shaft disposed at least partially within the bore of the housing. The chamber includes a backing wedge, a sliding wedge, and a load spring. The sliding wedge is positioned to apply a force onto an angled contact surface of the backing wedge. The sliding wedge is also positioned to apply a frictional force to a rod portion of the center shaft. The load spring is compressed between a contact surface of the chamber and a contact surface of the sliding wedge. The load spring is positioned to apply a compressive force onto the contact surface of sliding wedge toward the angled contact surface of the backing wedge.

A rail vehicle, in particular a locomotive, includes a chassis, a central buffer coupling, a coupling shaft which is hinged to the chassis and carries a coupling head, and a coupling support which has a spring-mounted transverse beam for supporting the coupling shaft. The coupling support has two retaining sheets which are secured to the chassis, and the transverse beam has two guide grooves which run in the spring direction. Each of the retaining sheets engages into a respective one of the guide grooves in a form-locking manner such that the transverse beam is guided in a movable manner in the spring direction and transversely thereto, and each retaining sheet has a predetermined breaking point. In this way, the coupling support is secured to the chassis in a simple manner.

A rail vehicle, in particular a locomotive, includes a chassis, a central buffer coupling, a coupling shaft which is hinged to the chassis and carries a coupling head, and a coupling support which has a spring-mounted transverse beam for supporting the coupling shaft. The coupling support has two retaining sheets which are secured to the chassis, and the transverse beam has two guide grooves which run in the spring direction. Each of the retaining sheets engages into a respective one of the guide grooves in a form-locking manner such that the transverse beam is guided in a movable manner in the spring direction and transversely thereto, and each retaining sheet has a predetermined breaking point. In this way, the coupling support is secured to the chassis in a simple manner.

Disclosed is a front suspension system having overload protection. The system comprises a mounting seat, a centering device, a support device used for supporting a coupling buffer and a coupling end pin, wherein the mounting seat is connected to a railway vehicle body, and the centering device and the support device are both installed on the mounting seat. The system further has a coupling connection seat and an overload protection element, wherein the coupling connection seat comprises a base and a coupling connection part connected as one with the base. The base is connected to a rear face of the mounting seat by means of the overload protection element. The coupling connection part passes through a through hole provided in the middle of the mounting seat and is connected with the coupling buffer by means of the coupling end pin. The coupling connection part is closely fitted with the through hole. The front suspension system has a simple structure and is lightweight.

Disclosed is a front suspension system having overload protection. The system comprises a mounting seat, a centering device, a support device used for supporting a coupling buffer and a coupling end pin, wherein the mounting seat is connected to a railway vehicle body, and the centering device and the support device are both installed on the mounting seat. The system further has a coupling connection seat and an overload protection element, wherein the coupling connection seat comprises a base and a coupling connection part connected as one with the base. The base is connected to a rear face of the mounting seat by means of the overload protection element. The coupling connection part passes through a through hole provided in the middle of the mounting seat and is connected with the coupling buffer by means of the coupling end pin. The coupling connection part is closely fitted with the through hole. The front suspension system has a simple structure and is lightweight.

A vertical spring support device for a coupler, comprises a support platform, a bracket, a support rod, a support spring, a wear sleeve and a locknut; the support spring is sheathed on the support rod, and an upper end of the support spring is resisted against a lower surface of the support platform while a lower end of the support spring is resisted against an upper end face of the bracket; an upper end of the support rod is fixedly connected to the lower surface of the support platform, while a bottom end of the support rod passes through the bracket and is then in threaded connection to the locknut via the wear sleeve; the support platform comprises a vertical support platform plate and a horizontal support platform plate, and a lower surface of the horizontal support platform plate is fixedly connected to the upper end of the support rod; and, the vertical support platform plate is vertically fixed on one side of the horizontal support platform plate close to the buffer shell.

A vertical spring support device for a coupler, comprises a support platform, a bracket, a support rod, a support spring, a wear sleeve and a locknut; the support spring is sheathed on the support rod, and an upper end of the support spring is resisted against a lower surface of the support platform while a lower end of the support spring is resisted against an upper end face of the bracket; an upper end of the support rod is fixedly connected to the lower surface of the support platform, while a bottom end of the support rod passes through the bracket and is then in threaded connection to the locknut via the wear sleeve; the support platform comprises a vertical support platform plate and a horizontal support platform plate, and a lower surface of the horizontal support platform plate is fixedly connected to the upper end of the support rod; and, the vertical support platform plate is vertically fixed on one side of the horizontal support platform plate close to the buffer shell.

An energy dissipation device is shown in connection with its implementation in train couplers. The energy dissipation device comprises axially compressible, irreversibly deforming steel elements arranged in a housing and axially pre-tensioned between a compression means and a counter-pressure means. In case of an impact, the compression means is moving in sliding contact with the inside wall of the housing to provide axial compression of the energy absorbing elements while preserving the integrity of the housing.

A yoke for a railway car is provided with a coupler support protruding from a top wall of the yoke into an interior space in the yoke to contact the coupler shank when the coupler head is deflected downward to prevent the coupler from drooping after prolonged use.