CN211541074U

CN211541074U - Device for disassembling bearing of output shaft of gearbox of railway passenger car

Info

Publication number: CN211541074U
Application number: CN201922272765.1U
Authority: CN
Inventors: 韩小超; 苗长庚
Original assignee: Unique Track Traffic Technology Co ltd
Current assignee: Unitech Technology Co ltd
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-09-22
Anticipated expiration: 2029-12-18

Abstract

The utility model discloses a dismantle device of track passenger train gear box output shaft bearing, it has realized the manual purpose of dismantling the bearing fast, has solved the unable difficulty of dismantling track passenger train gear box output shaft bearing fast of present equipment, can realize alone can dismantle the maintenance mode of output shaft bearing, adopts simple dismantlement mode, has solved the expensive high maintenance cost problem that uses large-scale dismantlement equipment. The invention comprises a clamping semicircular disc, a fixing bolt and a dismounting bolt, and can realize a quick, efficient and light dismounting process. The dismounting device has simple structure, can be repeatedly used without deformation when stressed, and does not damage other parts when the bearing is dismounted in a key way.

Description

Device for disassembling bearing of output shaft of gearbox of railway passenger car

Technical Field

The utility model belongs to the technical field of the railway vehicle maintenance, a dismantle device of railway vehicle gear box output shaft bearing is related to.

Background

With the rapid development of the rail transit in China, high speed and heavy load become the main characteristics of the rail transit development in China. The gear box is as the key part of railway vehicle power transmission, and its preparation is high integrated, and the spare part in the gear box on the railway vehicle arranges for high density especially arranges, as the gear box output shaft bearing of relative high fault rate, has great maintenance degree of difficulty during the dismantlement. The traditional bearing dismounting tool has a tool with a frame body using a jack and a large dismounting device with a complex design. However, these tools are too bulky for maintenance personnel, are not portable, are expensive, have high maintenance costs, and are not suitable for use in a highly integrated gearbox of a railway vehicle.

Disclosure of Invention

In order to solve the weak point and the shortcoming of above-mentioned existence, the utility model provides a dismantle railway vehicle gear box output shaft bearing's device.

A device for dismounting a bearing of an output shaft of a gearbox of a railway passenger car comprises a clamping semicircular disc, a fixing bolt and a dismounting bolt. The clamping semicircular discs are hollow semicircular discs, the inner ring planes of the clamping semicircular discs are lower than the outer ring planes, the two clamping semicircular discs are respectively sleeved on bearings needing to be dismounted, and the butt joints are fixed by fixing bolts. The upper surface of the outer ring of the clamping semicircular disc is positioned above a bearing needing to be disassembled, and the lower surface of the inner ring of the clamping semicircular disc is positioned on the side surface of the bearing needing to be disassembled; and the clamping semicircular disc is provided with a threaded hole, and the dismounting bolt is screwed into the dismounting threaded hole on the clamping semicircular disc.

Preferably, the dismounting threaded hole is positioned on the higher surface of the outer ring of the clamping semicircular disc.

Preferably, in order to ensure that the dismounting bolt can still be screwed into the clamping semicircular disc after being screwed into the clamping semicircular disc, the length of the dismounting bolt is longer than the thickness of the outer ring of the clamping semicircular disc.

Preferably, in order to avoid the abrasion of the bearing caused by the disassembling tool, a certain height is arranged between the outer ring of the clamping semicircular disc and the bearing required to be disassembled.

Preferably, in order to avoid the abrasion of the dismounting tool to the fixed bearing, a certain distance is arranged between the clamping semicircular disc and the fixed bearing.

The utility model discloses a theory of operation is: the two clamping semicircular discs are respectively sleeved on the bearing to be disassembled, and the lower surface of the inner ring of each clamping semicircular disc is positioned on the side surface of the bearing and used for pushing the bearing to move towards the disassembling direction; the upper surface of the outer ring of the clamping semicircular disc is positioned above the bearing, and a dismounting threaded hole is arranged on the upper surface of the clamping semicircular disc. After the two semicircular discs are clamped and buckled with the bearings, the butt joints are fixed by two fixing bolts respectively. After the clamping semicircular disc is fixed, the dismounting bolts are screwed into the dismounting threaded holes, more fixed gears exist in the gear box and serve as screwing-in stopping surfaces of the dismounting bolts, when the dismounting bolts start to be screwed in, the in-out consistency of the dismounting bolts is guaranteed as much as possible, along with the screwing-in of the dismounting bolts, the clamping semicircular disc moves in the opposite direction, the bearing is pushed by the inner ring surface of the clamping semicircular disc to move in the dismounting direction, and the bearing can be dismounted.

The utility model discloses the beneficial effect who reaches is: 1. the purpose of disassembling the bearing of the output shaft under the condition of high-density part arrangement in the gearbox of the railway passenger car is achieved; 2. the dismounting device has simple structure, economy and applicability and strong operability; 3. the dismounting device does not deform when stressed, so the dismounting device can be repeatedly used and has low cost; 4. when the gear box is disassembled, other parts in the gear box are not damaged, the disassembling process is accurate, efficient and rapid, the maintenance efficiency is improved, and the disassembling accident rate is reduced.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a front view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

FIG. 3 is a partial enlarged view of a cross-sectional view of the present invention;

in the figure: 1. disassembling the bolt; 2. fixing the bolt; 3. clamping the semicircular disc; 4. fixing a gear; 5. fixing the bearing; 6. and a bearing.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Example 1

A device for dismounting a bearing of an output shaft of a gearbox of a railway passenger car comprises a clamping semicircular disc 3, a fixing bolt 2 and a dismounting bolt 1. The clamping semicircular discs 3 are hollow semicircular discs, the two clamping semicircular discs are respectively sleeved and buckled on the periphery of a bearing 6 required to be disassembled, and after the sleeving and buckling are completed, the seam parts of the two clamping semicircular discs 3 are screwed and fixed through the fixing bolts 2. The inner ring of the clamping semicircular disc 3 is provided with a notch, so that the inner ring is lower than the plane of the outer ring and is used for being buckled outside the bearing 6 required to be disassembled, the higher plane of the outer ring of the clamping semicircular disc 3 is positioned above the bearing 6 required to be disassembled, and a disassembly threaded hole is formed in the higher plane; the lower plane of the inner ring of the clamping semicircular disc 3 is positioned on the side face of a bearing 6 required to be disassembled, the dismounting bolt 1 starts to be screwed into the dismounting threaded hole, more fixed gears 4 are arranged in the gear box and serve as screwing-in stopping faces of the dismounting bolt 1, when the dismounting bolt 1 starts to be screwed in, the consistency of the in and out of the dismounting bolt 1 is guaranteed as much as possible, along with the screwing-in of the dismounting bolt 1, the clamping semicircular disc 3 moves in the opposite direction, the bearing is pushed by the inner ring face of the clamping semicircular disc 3 to move in the disassembling direction, and the bearing can be disassembled from the fixed bearing 5. In order to ensure the work of detaching the bolt 1, the length of the threaded shaft is longer than the width of the section of the outer ring of the clamping semicircular disc 4. The key, for guaranteeing not only to satisfy the dismantlement function but also avoid with the wearing and tearing of gear box inner part, except the clamping semicircle dish inner circle with the gear contact, the part in clamping semicircle dish and the gear box all is equipped with certain safe distance.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a dismantle device of railway passenger train gear box output shaft bearing, includes clamping semicircle dish, fixing bolt, moves back and unloads the bolt, its characterized in that: the clamping semicircular discs are hollow semicircular discs, the inner ring planes of the clamping semicircular discs are lower than the outer ring planes, the two clamping semicircular discs are sleeved on the bearing to be dismounted in a split mode, and the butt joint position is fixed by a fixing bolt; the upper surface of the outer ring of the clamping semicircular disc is positioned above a bearing needing to be dismounted, and the lower surface of the inner ring of the clamping semicircular disc is positioned on the side surface of the bearing needing to be dismounted; and the clamping semicircular disc is provided with a threaded hole, and the dismounting bolt is screwed into the dismounting threaded hole on the clamping semicircular disc.

2. The device for disassembling the bearing of the output shaft of the gearbox of the railway passenger car as claimed in claim 1, wherein: and the dismounting threaded hole is positioned on the higher surface of the outer ring of the clamping semicircular disc.

3. The device for disassembling the bearing of the output shaft of the gearbox of the railway passenger car as claimed in claim 1, wherein: the length of the dismounting bolt is longer than the thickness of the outer ring of the clamping semicircular disc.

4. The device for disassembling the bearing of the output shaft of the gearbox of the railway passenger car as claimed in claim 1, wherein: a certain height is arranged between the outer ring of the clamping semicircular disc and the bearing required to be disassembled.

5. The device for disassembling the bearing of the output shaft of the gearbox of the railway passenger car as claimed in claim 4, wherein: a certain distance is arranged between the clamping semicircular disc and the fixed bearing.