CN86203116U

CN86203116U - Bogie truck axles

Info

Publication number: CN86203116U
Application number: CN 86203116
Authority: CN
Inventors: 吕炳生
Original assignee: ELECTRO-MECHANICAL REPAIR Co JIAOZUO COAL MINING BUREAU
Current assignee: ELECTRO-MECHANICAL REPAIR Co JIAOZUO COAL MINING BUREAU
Priority date: 1986-05-15
Filing date: 1986-05-15
Publication date: 1987-04-22

Abstract

The utility model relates to a tramcar wheel shaft, particularly a wheel shaft which is suitable for transporting vehicles under coal mines. Both ends of the wheel shaft are designed into step shafts with variable sections, and the wheel shaft has good stress conditions. The end part of the wheel shaft is provided with an annular groove, a semicircular ring for loading a bearing is arranged in the annular groove for positioning in an axial direction, an outer ring of the bearing is arranged in an inner hole of a wheel, and the wheel and a press cover of the bearing are made into integration. The utility model has the advantages of simple structure, convenient maintenance and long service life.

Description

Bogie truck axles

The utility model relates to a kind of Bogie truck axles, particularly is applicable to the wheel shaft of transport vehicle under the coal mine.

The Bogie truck axles of mine use is now installed antifriction-bearing box between axletree and wheel, bearing inner ring is by horned nut adjusting play and tightening; Be difficult for adjusting to the gap of requirement.Outside race covers (or spring triangle lid) spacing and dustproof effect with triangle; Mine car triangle lid in service very easily bumps loses (falling wheel); Make each part of axle head be exposed to the outside, bearing (waiting part) damages easily.The axletree two ends easily produce flexural deformation, and the inner end axletree of axle head and sealing member often need to change axletree owing to wearing and tearing, so wheel shaft is listed in the main consumable accessory of mine car.

For improving the Bogie truck axles life-span, improve safe reliability in the use, the utility model has designed a kind of later-model wheel shaft structure.

The utility model main contents are: a kind of failure-free axle head connection structure of being made up of wheel (3), axletree (10), rolling bearing assembly (5) and two semicircular ring (1); There is circular groove axletree (10) end, after bearing assembly (5) being loaded on the axletree (10), part (1) is loaded in this groove as the bearing axial limiting, and assembling back axially gap is processed with circular groove with mounting spring collar (2) in 0.10～0.20mm, on the cylindrical of semicircular rings (1); Wheel (3) endoporus installation shaft bearing assembly (5); After the axle head assembling, when semicircular ring (1) contacts with the A hole of wheel (3), the inherent radial direction of circular groove that semicircular ring (1) is embedded in axletree (10) is no less than 1mm, become failure-free axle head connection structure, the step axle journal that the axletree two ends are designed to rational gradual cross section has improved the axletree stressing conditions; Plastics labyrinth (9) is housed on step axle journal (B), and the cylindrical of plastics labyrinth (9) contacts with oil sealing.

Advantage of the present utility model is split semicircular ring axle head location, tightening structure owing to adopted, and is safe and reliable in the use, saved steel, reduced number of parts, also reduced the part processing amount, reduced cost; Assembling, easy row easy to maintenance; Variable section step axle has been adopted at axletree (10) two ends, and its cross dimensions changes little, and stressing conditions improves greatly; Shaft end seal is reliable; Only need to change corresponding part after oil sealing and the wearing and tearing of junction, plastics labyrinth, axletree still can use, and has improved service life greatly.

Description of drawings: accompanying drawing is an end of Bogie truck axles, other end symmetrical placement.

1. be semicircular ring.

2. be spring collar.

3. be wheel.

4. be that oil is stifled.

5. be rolling bearing assembly.

6. be the hole elastic collar.

7. be door.

8. be rubber oil seal with reinforce.

9. be the plastics labyrinth.

10. be axletree.

Embodiment of the present utility model: be a cocopan wheel shaft, installation shaft bearing assembly (5) between axletree (10) and wheel (3), running-fit is adopted in outside race and wheel hole, bearing inner ring and axletree (10) adopt transition fit, only need bearing is heated in oil and can be contained in easily on the axle; Inside and outside spacer is arranged between rolling bearing assembly, be processed with circular groove on the outer separator cylindrical, be drilled with the hole on the groove and communicate, can give the bearing oiling when taking out oil stifled (4) with oil hole; Wheel (3) and bearing gland are designed to one, have guaranteed wheel shaft outer end positiver sealing, and it is embedded in that the degree of depth is not less than 1mm at radial direction in axletree (10) circular groove when semicircular ring contact wheel hub A place hole surface after the assembling; Its endplay of semicircular ring assembling back is 0.2mm; Axletree (10) axle journal is φ 50mm, and B place transition shoulder shaft diameter is φ 56mm; Plastics labyrinth (9) is housed on the transition shoulder axle journal, and it cooperates is interference fit, and door (7) makes bearing assembly (5) outer ring axial location by internal circlip (6); Rubber oil seal with reinforce (8) is housed in the door (7).

Claims

1, a kind of Bogie truck axles of forming by wheel, axletree, bearing assembly and axial limiting tightening part, it is characterized in that: the two ends of wheel shaft adopt cross dimensions to change little step axle, being connected by semicircular ring of wheel, axletree end and rolling bearing assembly constitutes failure-free axle head connection structure, on the transition shoulder axle journal of axletree the plastics labyrinth is housed.

2, according to the described Bogie truck axles of claim 1, it is characterized in that axle head is equipped with the semicircular ring of splitting and also uses the spring collar tightening in the circular groove of axletree, when semicircular ring contacts with the wheel hole its be embedded in amount in the axletree circular groove at radial direction for being not less than 1mm, semicircular ring is 0.10～0.20mm at the endplay of rolling bearing inner ring end face and axletree circular groove during installation.

3,, it is characterized in that being equipped with on the axletree transition shoulder removable plastics labyrinth according to the described Bogie truck axles of claim 1.

4, according to the described Bogie truck axles of claim 1, it is characterized in that inner end, wheel hole is equipped with the axially movable door of restrictive axes bearing outer-ring, door is equipped with rubber oil seal with reinforce by the circlip for bore axial limiting on the door.

5,, it is characterized in that the bearing gland of wheel and axle head is made of one according to the described Bogie truck axles of claim 1.