Kawasaki Jukogyo Kabushiki Kaisha

Kawasaki Railcar Manufacturing Co., Ltd.

Yukihiro Sano

Fumikazu Kounoike

Yukitaka Taga

Takaya Ono

Yoshihiro Tamura

Yosuke Matsushita

Toshifumi Machida

Yoshi Sato

Masashi Yamaguchi

A method of manufacturing a structural object includes: receiving a data set including workpiece three-dimensional measurement data and first specific information of first identifier three-dimensional measurement data associated with the workpiece three-dimensional measurement data; acquiring second identifier three-dimensional measurement data by measuring a three-dimensional shape of the identifier; reading out the workpiece three-dimensional measurement data from the data set including the first specific information that coincides with second specific information of the second identifier three-dimensional measurement data; and determining a machining plan based on the read workpiece three-dimensional measurement data.

Method of manufacturing structural object, identifier for manufacturing structural object, structural object manufacturing system, and machining program

A bogie frame includes a cross beam extending in a car width direction and including a car width direction middle portion at which a center pin arrangement space is formed. The cross beam includes a pair of pipe members extending in the car width direction and lined up so as to be located away from each other in a car longitudinal direction, and air spring seats provided at upper surfaces of car width direction end portions of the pair of pipe members. At least one of the pair of pipe members includes a curved portion at a car width direction middle portion thereof, the curved portion projecting outward in the car longitudinal direction such that a clearance between the pair of pipe members increases. The center pin arrangement space is formed between the pair of pipe members by the curved portion.

Railcar bogie frame

A railcar bogie includes: a cross beam extending in a car width direction; a first traction motor supported by a first car longitudinal direction portion of the cross beam; a second traction motor supported by a second car longitudinal direction portion of the cross beam; and a coupling member arranged under the cross beam and between the first traction motor and the second traction motor and coupling the first traction motor and the second traction motor to each other.

Railcar driving bogie

A railcar axle box includes an axle box main body accommodating a bearing supporting an axle. The axle box main body includes: an inner surface defining an accommodating space accommodating the bearing; a first side surface provided at an outer side of the inner surface and at one car width direction side of a car width direction center of the accommodating space; and a second side surface provided at an outer side of the inner surface and at the other car width direction side of the center. A shortest distance between the first side surface and the car width direction center of the accommodating space and a shortest distance between the second side surface and the center are equal to each other in a car width direction.

Railcar axle box and method of producing the same

A railcar bogie axle box suspension axle beam includes an end portion d at a tip end, a tubular portion at the end portion and being open at both car width direction sides. The tubular portion includes: a first semi-tubular portion integrally formed with a main body portion; a second semi-tubular portion brought into contact with the first semi-tubular portion from one side in the car longitudinal direction; and a bolt fastening the second semi-tubular portion to the first. The first semi-tubular portion includes: a flat opposing surface contacting the second semi-tubular portion; and a hole into which the bolt is inserted. The second semi-tubular portion includes: a flat opposing surface contacting with the first semi-tubular portion surface; a flat machining reference surface formed at an opposite side of the opposing surface; and a hole extending in a direction perpendicular to the opposing surface, the bolt inserted into the hole.

Axle box suspension of railcar bogie and method of producing the same

A railcar bogie includes: a cross beam supporting a carbody of a railcar; an axle box including a bearing accommodating portion accommodating a bearing rotatably supporting a wheelset; a plate spring extending in a car longitudinal direction while supporting a car width direction end portion of the cross beam; and a receiving member provided above the axle box and supporting a car longitudinal direction end portion of the plate spring, an attachment hole being formed at a car longitudinal direction outside portion of the receiving member, a lifting fitting used to lift the bogie being attached to the attachment hole.

Railcar bogie

A railcar bogie includes a wheelset, a bearing rotatably supporting the wheelset, an axle box, and an obstacle deflector. The wheelset includes: an axle and a pair of wheels provided at both car width direction sides of the axle. The axle box includes: an upper axle box element covering the bearing from above; and a lower axle box element fixed to the upper axle box element and covering the bearing from below. The obstacle deflector includes an obstacle deflecting portion and a coupling portion. The obstacle deflecting portion is arranged at one side of the wheel in a car longitudinal direction and, when viewed from the one side in the car longitudinal direction, overlaps the wheel. The coupling portion couples the obstacle deflecting portion to the axle box. The coupling portion of the obstacle deflector is fixed to a receiving seat provided at the upper axle box element.

A railcar bogie includes a cross beam, an axle box, a supporting member, a plate spring, and an axle beam. The axle box accommodates a bearing rotatably supporting a wheelset. The supporting member is provided at an upper portion of the axle box. The plate spring supports a car width direction end portion of the cross beam and extends in a car longitudinal direction, and the plate spring includes a car longitudinal direction end portion supported by the supporting member. The axle beam couples the axle box and the cross beam in the car longitudinal direction and is opposed to the plate spring in an upward/downward direction. An installation seat is provided at an upper surface of the axle beam and includes an installation surface on which a pushing-up device configured to push up a lower surface of the plate spring can be placed.

Railcar bogie, wheel load adjusting method thereof, and wheel load adjusting system

A wheel load adjusting tool includes at least one liner interposed between an axle box and a spring directly or indirectly supported by the axle box, the liner including: a pressure receiving portion configured to receive a load applied from the spring; a first engaging portion formed by recessing a part of an outer edge of the pressure receiving portion inward, the first engaging portion engaging with a first engaged portion to restrict the liner from being displaced with respect to the axle box, the first engaged portion projecting from an upper surface of the axle box; and a second engaging portion projecting outward from the pressure receiving portion at an opposite side of the first engaging portion, the second engaging portion engaging with a second engaged portion of the axle box to restrict the liner from being displaced and rotated with respect to the axle box.

Growing community of inventors

Kobe, Japan

Yukihiro Sano