Qiqihar Railway Rolling Stock Co.

Qiqihar, China

Qiqihar Railway Rolling Stock Co.

Qiqihar, China

Time filter

Source Type

Patent
Qiqihar Railway Rolling Stock Co. Dalian R&D Center and Qiqihar Railway Rolling Stock Co. | Date: 2015-09-02

An axle box suspension positioning device for a railway vehicle is provided according to the present application, which includes a guide column assembly. The guide column assembly includes a fixed end connected to a frame of the railway vehicle, and a free end which is extendable and retractable from an opening of the axle box. An elastic positioning component is provided in the opening, and the elastic positioning component limits a movement of the free end along a running direction of the vehicle with respect to the frame. The arrangement of the elastic positioning component enables the axle box suspension positioning device to have a large positioning rigidity. A bogie having the axle box suspension positioning device is further provided according to the present application.


Patent
Qiqihar Railway Rolling Stock Co. | Date: 2013-03-21

A side frame for a bogie. Two longitudinal sides of the side frame are respectively provided with a supporting seat for connecting an end portion of a connecting rod, and the supporting seat is integrally formed with the side frame by casting. The supporting seat includes a supporting plate, a middle rib and a first side rib. The supporting plate is provided with a through hole. The connecting rod and the supporting seat are thread-connected via a conical pole which is fixedly provided in the through hole. The side frame reduces the welding processes, ensures the installation precision of the supporting seat, and enhances the strength of the supporting seat.


Patent
Qiqihar Railway Rolling Stock Co. | Date: 2014-06-27

The disclosure discloses a swing bolster, a swing bolster vibration reduction assembly and a bogie. The swing bolster includes a body, wherein a mounting cavity for mounting a friction block is formed in two ends of the body; the mounting cavity is provided with a first horizontal opening and a second horizontal opening, which are opposite to each other; and opening directions of the first horizontal opening and the second horizontal opening are perpendicular to an extending direction of the body. The friction block is not matched with the swing bolster through slopes, and a movement direction of the swing bolster is perpendicular to a movement direction of the friction block relative to the swing bolster, so that a vibration reduction effect of the bogie in an unloaded state is ensured, and using reliability of the swing bolster is ensured.


Patent
Qiqihar Railway Rolling Stock Co. | Date: 2014-06-30

An axle box suspension positioning device for a railway vehicle is provided according to the present application, which includes a guide column assembly. The guide column assembly includes a fixed end connected to a frame of the railway vehicle, and a free end which is extendable and retractable from an opening of the axle box. An elastic positioning component is provided in the opening, and the elastic positioning component limits a movement of the free end along a running direction of the vehicle with respect to the frame. The arrangement of the elastic positioning component enables the axle box suspension positioning device to have a large positioning rigidity. A bogie having the axle box suspension positioning device is further provided according to the present application.


Patent
Qiqihar Railway Rolling Stock Co. | Date: 2012-08-28

A bottom door opening-closing mechanism includes a first connecting rod, a second connecting rod, a swing rod, a bottom door opening-closing drive cylinder and a transmission shaft. The swing rod is hinged to the second connecting rod and the piston rod of the bottom door opening-closing drive cylinder. One end of the first connecting rod is hinged to the second connecting rod, and the transmission shaft is connected to the second connecting rod. The cylinder body of the bottom door opening-closing drive cylinder is fixedly connected with a first locking hook, and the swing rod is fixedly connected with a second locking hook which can be caught by the first locking hook. A bottom door device and a drop-bottom hopper car are further provided. In the present invention, the first locking hook and the second locking hook are caught with each other to achieve a secondary locking. Such an arrangement has some advantages such as a simple structure and low manufacture and maintenance costs. Further, a secondary locking may be achieved while closing the bottom door only by controlling the bottom door opening-closing drive cylinder, so that the complexity of the control system is reduced.


Patent
Qiqihar Railway Rolling Stock Co. | Date: 2012-07-27

The present application provides a bottom door device and a hopper car, the bottom door device includes a first bottom door and a second bottom door, the first bottom door includes a first door end plate and a first bottom door plate which are fixedly connected, the second bottom door includes a second door end plate and a second bottom door plate which are fixedly connected, and a labyrinth seal is formed between the first bottom door plate and the second bottom door plate. By using a labyrinth seal to replace the overlapping sealing in the prior art, the bottom door device and the hopper car provided by the present application can still meet the sealing requirement on the premise that the two bottom door plates can be closed without complying with any specific order, thereby optimizing the structure of the bottom door device in the prior art.


Patent
Qiqihar Railway Rolling Stock Co. | Date: 2012-08-03

The present invention discloses a ballast hopper car discharge door control system, comprising a control box, said control box comprises electrical pneumatic control system and receiving device; hydraulic system, connected to electrical pneumatic control system; manual control device and remote control device are operated to control opening or closing of ballast hopper car discharge doors; storage battery, configured to provide electrical pneumatic control system in said control box with continuous power supply and remote control device with charging power supply; pressure switch, arranged between control box and storage battery, said pressure switch is operated by pressure of air source to control connecting and disconnecting between storage battery and control box. The ballast hopper car discharge door control system provided by the present invention prevents false on-site operation of discharge door, thus prevents unexpected operation, improves discharging efficiency of ballast hopper car and reduces workload of operator.


Patent
Qiqihar Railway Rolling Stock Co. | Date: 2012-08-29

A railway wagon bogie and a railway wagon are provided. The bogie includes wheel sets, side frames provided with triangular holes, a swing bolster provided with a preset hole in its body, and cross-braced rods. Cavities are formed in the side frames, symmetric around the center of the side frames, and located below the triangular holes. A connecting seat is provided in each of the cavities, and provided with a vertical mounting hole in a middle portion of the connecting seat. The cross-braced rods are elastically connected to the connecting seats through the mounting holes. In the railway wagon bogie and the railway wagon, the strength of the bogie is increased.


Patent
Qiqihar Railway Rolling Stock Co. | Date: 2014-10-20

A coupler buffer is provided that includes a coupler yoke for connection to a coupler, a front stop body for mounting to a vehicle body, a first elastic element, wherein a rear end thereof abuts against the coupler yoke and a front end thereof abuts against the front stop body, a casing arranged at a rear end of the coupler yoke, wherein a rear end of the casing is configured to be connected to the vehicle body, and the casing is connected with the coupler yoke via a connecting shaft, and the coupler yoke is movable along an axial direction of the connecting shaft, and a second elastic element arranged between the casing and the coupler yoke, wherein even when a vehicle body suffers a traction force or a compression force, the coupler buffer may function well.


Patent
Qiqihar Railway Rolling Stock Co. | Date: 2013-10-09

Disclosed are a central suspension device, a wagon bogie comprising the central suspension device and an express railway wagon, wherein the central suspension device comprises a frame (3), a bolster (2) and a longitudinal traction connecting rod device (4). One end of the longitudinal traction rod (4) is connected to the frame (3), and the other end is connected to the bolster (2). The central suspension device further comprises a rubber-metal pad spring group (10) comprised of at least two rubber-metal springs (11, 12), the bottom end of each rubber-metal spring is connected with the frame (3) respectively. The top end of at least one rubber-metal pad spring of the rubber-metal pad spring group (10) is connected to the bolster (2) and a gap exists between the top end of at least one rubber-metal pad spring (11, 12) and the bolster (2). The central suspension device has multiple stages of rigidity horizontally and vertically, facilitating the transition between different rigidity when the vehicle is empty or loaded, thus allowing the express railway wagon to run safely and stably.

Loading Qiqihar Railway Rolling Stock Co. collaborators
Loading Qiqihar Railway Rolling Stock Co. collaborators