JPH04137962U - Axle box support device - Google Patents

Abstract

(57) [Summary] [Purpose] In a vehicle axle box support device, the driving force and braking force acting on the wheels are transmitted directly to the axle box guard without going through the axle box mounting bolts, thereby improving the strength and reliability of the axle box. In addition to improving the performance, it also makes it possible to reduce maintenance and inspection work. [Configuration] Axle box protector 3b, anti-vibration rubber 2, and axle box protector mounting pipe 5
Both sides of the axle box with a pair of cavities that guide the axle box body 1
It is formed integrally with c. The axle box guard 3b and the axle box guard attachment pipe 5b are attached in a tapered shape. The axle box guard 3b is directly fastened with a mounting nut 8 below the axle box guard mounting pipe 5b.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to an axle box support device.

0002

[Conventional technology]

Conventional axle box support devices are shown in Figs. 1, 2, and 3. Please note that this type of device is Related publications include, for example, Japanese Utility Model Application Publication No. 53-82913.

0003 The driving force and braking force acting on the wheels are created in the axle box body 1a attached to both ends of the axle. is transmitted to the axle box guard 3a attached to the bogie frame 4 through the vibration isolating rubber 2. Ru.

0004 The conventional axle box support device holds the anti-vibration rubber 2 between the axle box body 1a and the axle box cover 1b. The structure was such that it was fastened with 9 mounting bolts. In addition, the conventional axle box support device Insert the cylindrical axle box guard 3a into the axle box guard mounting pipe 5a having a cylindrical inner diameter, and then Pass the tightening ring 6 and saucer 7 from below the protective mounting pipe, and then insert the mounting nut 8. It was designed to be attached with.

[0005]

[Problem that the idea aims to solve]

In the above conventional structure, the driving force and braking force acting on the wheels are directly applied to the length of the mounting bolt 9. This caused the problem of poor strength reliability. For this reason, the axle box body 1a, Management of the tightening torque of the mounting bolts 9 when assembling the axle box cover 1b, and Quality control of the mounting bolt 9 itself, and if the mounting bolt 9 is damaged due to some influence during actual operation. If it is damaged, problems such as the failsafe function not working may occur. Ta.

[0006] The conventional structure is between the cylindrical axle box guard 3a and the axle box guard mounting pipe 5a with a cylindrical inner diameter. There is a gap between. The play in this gap has a negative effect on the transmission of force. others Then, insert a tightening ring 6 with a wedge-shaped cross section from below the axle box guard mounting pipe 5a. This negative effect can be avoided by inserting the was reduced. Also, when assembling or disassembling the truck or wheel set, the tightening ring 6 and the It is necessary to attach and detach the drain plate 7, which poses a problem that improves maintenance and inspection efficiency.

[0007] The purpose of this invention is to prevent the driving force and braking force acting on the wheels from acting directly on the mounting bolts. It's about providing structure.

[0008] Another purpose of this invention is to avoid creating gaps between the axle box guard and the axle box guard mounting pipe so that the wheels can The objective is to provide a structure that smoothes the transmission of working driving force and braking force.

[0009] A further object of the present invention is to facilitate assembly and disassembly of carts and wheelsets, and to facilitate maintenance and The purpose is to reduce inspection work.

0010

[Means to solve the problem]

The above purpose has a pair of cavities that guide the axle box guard, anti-vibration rubber, and axle box guard mounting pipe. This is achieved by making both sides of the axle box integral with the axle box body.

[0011] Furthermore, the above purpose is to make the shape of the axle box guard conical, and to change the inner diameter shape of the axle box guard mounting pipe to the shape of the axle box guard. This is achieved by making it a conical shape with the same taper as the guard.

0012 Furthermore, the above purpose is to connect the axle box guard and the axle box guard guide pipe directly with a mounting nut. This is achieved by making it a structure.

[0013]

[Effect]

Both sides of the axle box have a pair of cavities that guide the axle box guard, anti-vibration rubber, and axle box guard mounting pipe. Since the axle box and the axle box body are integrated, the driving force and braking force acting on the wheels are not transmitted through bolts. , directly transmitted to the axis box keeper.

[0014] Since the axle box guard and the axle box guard mounting pipe are installed with the same taper, both There is no gap between them and they are in full contact. For this reason, the driving force and braking force acting on the wheels are Power is transmitted smoothly.

[0015] The axle box guard and the axle box guard guide pipe are directly connected with nuts, so the truck and wheel axle are assembled. Disassembly work can be done by simply tightening and removing nuts.

[0016]

【Example】

Embodiments of the present invention will be described below with reference to FIGS. 4, 5, and 6.

[0017] It has a pair of cavities that guide the axle box guard 3b, the vibration isolating rubber 2, and the axle box guard mounting pipe 5b. Both sides of the axle box are integrally formed with the axle box main body 1c. Anti-vibration rubber 2 is attached to both axle boxes from below. It is inserted into the side part 1c, and a back cover 10 is attached to prevent it from falling off.

[0018] The axle box guard 3b has a thick conical shape at the attachment part to the bogie frame 4 and tapers downward. be. The axle box guard attachment pipe 5b is wide at the entrance and narrows toward the bottom, and It has the same tapered conical inner diameter as the axle box guard 3b. For this reason, the bogie frame and wheel axle assembly At this time, there is no gap between the axle box guard 3b and the axle box guard mounting pipe 5b. Also, the trolley frame The wheel axle can be easily attached and detached in the vertical direction.

[0019] The axle box guard 3b is directly attached with the mounting nut 8 below the axle box guard mounting pipe 5b. It is being

[0020] According to this embodiment, the driving force and braking force acting on the wheels are transmitted directly through the anti-vibration rubber 2. Since the stress is transmitted to the axle box guard 3, stress acts continuously within the axle box main body 1c, resulting in mechanically superior stress. The structure will be as follows.

[0021] Further, according to this embodiment, there is no gap between the axle box guard 3b and the axle box guard attachment pipe 5b. Therefore, the driving force and braking force acting on the wheels are generated by the contact between the axle box guard 3b and the axle box guard mounting pipe 5b. Smooth transmission between surfaces.

[0022] Furthermore, according to this embodiment, the work of attaching and detaching the truck and the wheelset is done by tightening the mounting nut 8. This can be done by simply removing the cover.

[0023]

[Effect of the idea]

According to the present invention, a mechanically superior structure is obtained. In addition, the mounting bolt shown in the prior art By abolishing bolts, quality control of bolts themselves, tightening torque management, etc. Can eliminate uncertain factors affecting strength reliability, assembly and disassembly time can also be significantly reduced. Fail control in case bolt breakage occurs during actual operation It is no longer necessary to take into account loss of function, and the strength reliability in this aspect is also improved. improves. Furthermore, regarding the machining work inside the axle box guard guide cavity on both sides of the axle box. can be formed only by machining one side with the same diameter lathe from the bottom of the axle box body, and the setup, Machining time can be significantly reduced.

[0024] According to the present invention, the work of attaching and detaching the bogie and wheel axle can also be done by tightening and removing the mounting nuts. Since it can be done by hand, it is possible to manage parts, shorten work time, and reduce manufacturing costs. It can be of great help in maintenance, inspection, and cost reduction.

[Brief explanation of drawings]

FIG. 1 is a front view of a conventional structure.

FIG. 2 is a side view of a conventional structure.

FIG. 3 is a sectional view taken along the line III-III in FIG. 1;

FIG. 4 is a front view of one embodiment of the present invention.

FIG. 5 is a side view of one embodiment of the present invention.

FIG. 6 is a sectional view taken along the line VI-VI in FIG. 4;

[Explanation of symbols]

1c...Axle box body of the present invention, 2...Vibration isolating rubber, 3b...Axle box guard of the present invention, 5b...Axle box guard guide pipe of the present invention, 8...Mounting nut.

Claims (4)

[Scope of utility model registration request] Claim 1: an axle box that is attached to both ends of the axle and has a pair of cavities for guiding the axle box at both ends of the bearing at each mounting position; In an axle box support device that includes a vibration isolating rubber and an axle box guard mounting pipe between a pair of axle box guards guided by the axle box guards, both sides of the axle box guide the axle box guard, the vibration isolating rubber, and the axle box guard mounting pipe. An axle box support device characterized in that the part is integrated with the axle box main body. 2. The axle box support device according to claim 1, wherein the axle box guard has a conical shape. 3. The axle box support device according to claim 1, wherein the inner diameter of the axle box guard mounting pipe is conical. 4. The axle box support device according to claim 1, wherein said axle box guard and said axle box guard mounting pipe are directly fastened with bolts.