CN211494064U

CN211494064U - Axle box assembly and railway bogie

Info

Publication number: CN211494064U
Application number: CN201922384758.0U
Authority: CN
Inventors: 周志勇; 孟少峰; 逯津杰; 宋刚; 任艳红; 陈小花; 康锋
Original assignee: Jinxi Railway Vehicle Co ltd
Current assignee: Jinxi Railway Vehicle Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-09-15
Anticipated expiration: 2029-12-26

Abstract

The utility model provides a axle box subassembly and railway bogie, the axle box subassembly is suitable for and assembles on the axletree, the axletree includes axletree leading edge and the main shaft body, the axletree leading edge with the junction of the main shaft body is the stair structure, include: the box body, the front gland and the rear gland are arranged on two sides of the box body; the bearing is sleeved in the box body, and the inside of the bearing is suitable for being sleeved with the front edge of the axle; the sealing washer, the one end of sealing washer with the bearing butt, stretch out the other end of sealing washer back gland and orientation deviate from the orientation bending type of main shaft body forms retaining ring structure, axle box assembly, seal axle box assembly through setting up the sealing washer between back gland and axletree, and the tip orientation of sealing washer is buckled type and is formed the retaining ring towards the orientation that deviates from the axletree, further to strengthening the sealing performance to clearance between back gland and the axletree, avoid the axle box oil leak, improve the security performance of axle box.

Description

Axle box assembly and railway bogie

Technical Field

The utility model relates to a railway locomotive spare part technical field particularly, relates to an axle box subassembly and railway bogie.

Background

On a railway locomotive vehicle, a part sleeved on an axle and connected with a wheel set and a bogie frame is called an axle box for short, the axle box belongs to an important part of a railway vehicle, and has the functions of transferring the weight and load of the vehicle body to the wheel set, lubricating the axle, reducing friction and reducing running resistance, so that a bearing of the axle box is usually filled with lubricating oil, the existing axle box has poor sealing effect, and after the railway vehicle runs for a long time, the axle box is in a high-temperature environment, so that the axle box is easy to leak oil, and potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention is directed to a shaft box assembly, which is at least partially intended to solve at least one of the above problems.

In order to solve the above problem, the utility model provides an axle box subassembly, the axle box subassembly is suitable for to assemble on the axletree, the axletree includes axletree leading edge and the main shaft body, the axletree leading edge with the junction of the main shaft body is stair structure, include: the box body, the front gland and the rear gland are arranged on two sides of the box body; the bearing is sleeved in the box body, and the inside of the bearing is suitable for being sleeved with the front edge of the axle; and one end of the sealing ring is abutted to the bearing, and the other end of the sealing ring extends out of the rear gland and is bent to form a check ring towards the direction deviating from the main shaft body.

Optionally, the retainer ring is attached to the side surface of the rear gland and the outer side surface of the rear gland.

Optionally, the side of the retainer ring facing the rear gland is provided with a first groove, the side of the rear gland attached to the retainer ring is provided with a second groove, and the first groove and the second groove are enclosed to form a sealing groove.

Optionally, the sealing device further comprises a sealing rubber ring arranged in the sealing groove.

Optionally, the front cover is sleeved on the end of the front edge of the axle and fixedly connected with the front edge of the axle.

Optionally, the bearing further comprises an inner stopper, and the inner stopper is arranged between the front cover and the bearing and is respectively abutted against the front cover and the bearing.

Optionally, the bearing includes an outer ring and an inner ring, the outer ring is disposed between the front gland and the rear gland and is respectively abutted to the front gland and the rear gland, and the inner ring is disposed between the inner stopper and the sealing ring and is respectively abutted to the sealing ring and the inner stopper.

Optionally, the inner ring, the inner stop and an end of the sealing ring abutting against the inner ring are axially defined between the front cover and the spindle body together.

Optionally, the bearing is a single row cylindrical roller bearing.

Compared with the prior art, the axle box assembly of the utility model has the following advantages:

axle box subassembly, seal axle box subassembly through setting up the sealing washer between rear gland and axletree, and the tip orientation of sealing washer forms the retaining ring towards the direction bending type that deviates from the axletree, further strengthens the sealed in clearance between rear gland and the sealing washer, avoids the axle box oil leak, improves the sealing performance of axle box.

The utility model also provides a railway bogie, including axletree and as above the axle box subassembly, the axle box subassembly is suitable for and assembles in the tip of axletree.

The advantages of the railway bogie and the axle box assembly over the prior art are the same and will not be described in detail herein.

Drawings

FIG. 1 is a schematic structural view of an embodiment of an axle housing assembly according to the present invention;

FIG. 2 is a schematic diagram of a seal ring of an embodiment of an axle housing assembly according to the present invention;

fig. 3 is a schematic structural diagram of a rear gland of an embodiment of an axle box assembly according to the present invention.

Description of reference numerals:

1. axle, 101, axle front edge, 102, main shaft body, 2, box, 3, front gland, 4, back gland, 41, second recess, 5, bearing, 51, outer lane, 52, inner circle, 6, sealing washer, 7, retaining ring, 71, first recess, 8, sealing rubber ring, 9, front cover, 10, internal stop.

Detailed Description

On a railway locomotive, a part sleeved on an axle and connected with a wheel set and a bogie frame is called an axle box for short, the axle box belongs to an important part of a railway vehicle, and has the functions of transferring the weight and load of the vehicle body to the wheel set, lubricating the axle, reducing friction and reducing running resistance, so that a bearing of the axle box is usually filled with lubricating oil, the existing axle box has poor sealing effect, after the railway vehicle runs for a long time, because the axle box is in a high-temperature environment, the oil leakage phenomenon of the axle box is easy to occur, the abrasion between the axle box and the axle is aggravated, and the potential safety hazard exists.

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

A coordinate system XY is provided herein, wherein a forward direction of the X-axis represents a rearward direction, a reverse direction of the X-axis represents a forward direction, a forward direction of the Y-axis represents an upward direction, and a reverse direction of the Y-axis represents a downward direction.

In addition, the following description will be briefly made with reference to the orientation: the following directional or positional relationships, as indicated in the context of "front", "rear", "upper", "lower", etc., of each structural member, are intended to refer to the orientation or positional relationship illustrated in the drawings; these positional relationships are merely for convenience and simplicity of description and do not indicate or imply that the device referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention.

The present embodiment describes the structure of the axle box assembly in a state after the assembly of the axle box assembly and the axle is completed.

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

As shown in fig. 1, the embodiment of the present invention provides an axle box assembly, the axle box assembly is suitable for being assembled on an axle 1, specifically, the axle box assembly is assembled at the end of the axle, and the weight and the load of the vehicle body are transmitted to the wheel set through the axle box assembly, the axle 1 includes an axle leading edge 101 and a main shaft body 102, the axle leading edge 101 and the main shaft body 102 are in a step structure at the joint, the axle leading edge is assembled in the axle box assembly, and the axle leading edge is in rolling connection with the axle box assembly, and has less friction. The axle box assembly includes: the device comprises a box body 2, a front gland 3 and a rear gland 4, wherein the front gland 3 and the rear gland 4 are arranged on two sides of the box body 2; the front gland and the rear gland are connected with the box body through bolts, are connected and fastened, and are convenient to detach and maintain. Specifically, the front gland is fixedly connected with the front side surface of the box body through bolts, and the rear gland is fixedly connected with the rear side surface of the box body through bolts. The bearing 5 is sleeved in the box body 2, the bearing is fixed in the middle of the box body through the front gland and the rear gland, the bearing 5 is suitable for being sleeved with the front edge 101 of the axle, and a roller of the bearing is in surface-to-surface contact with the axle face and has small rolling friction. Specifically, the bearing 5 includes an outer ring 51 and an inner ring 52, the outer ring 51 is disposed between the front gland 3 and the rear gland 4 and respectively abuts against the front gland 3 and the rear gland 4, the outer ring and the front gland are in clearance fit with the rear gland, the outer ring is fixed between the front gland and the rear gland by being pressed, the position of the outer ring is fixed and stabilized in the axle box assembly, the inner ring 52 is disposed between the inner block 10 and the seal ring 6 and respectively abuts against the seal ring 6 and the inner block 10, and the inner block, the inner ring and the seal ring are collectively defined between the front cover and the main shaft body, the position of the inner ring is fixed in the axle box assembly, and further the position of the bearing is fixed in the axle box assembly, so that the bearing and the axle have better matching effect, and since the bearing and the axle box assembly are in clearance fit, after the bearing is worn after being used for a long time, is convenient to replace in time and is convenient for follow-up maintenance. And one end of the sealing ring 6 is abutted to the bearing 5, and the abutted end part of the sealing ring and the bearing is in a shape matched with the step structure of the axle, so that the position of the sealing ring in the axial direction of the axle is limited, and the inner ring adjacent to the sealing ring can be limited. The other end of the sealing ring 6 extends out of the rear gland 4 and is bent towards the direction deviating from the main shaft body 102 to form a check ring 7, the check ring and the sealing ring are integrally formed in an injection molding mode, and the check ring blocks a gap between the sealing ring and the rear gland to prevent lubricating oil from flowing out.

The retaining ring 7 orientation the side of back gland 4 with the lateral surface laminating setting of back gland 4, specifically, the retaining ring closely laminates the setting with the trailing flank on the X axle positive direction of back gland, further improves the shutoff effect of retaining ring to the clearance between sealing washer and the back gland, makes lubricating oil be difficult for flowing out.

As shown in fig. 2 and 3, a first groove 71 is formed in a side surface of the retainer ring 7 facing the rear gland 4, a second groove 41 is formed in a side surface of the rear gland 4, which is attached to the retainer ring 7, and the first groove 71 and the second groove 41 enclose to form a sealing groove, so that a sealing space is formed between the retainer ring and the rear gland, and even if a small amount of lubricating oil permeates into a gap between the retainer ring and the rear gland, the lubricating oil can be contained in the sealing groove, thereby reducing oil leakage risk.

In this embodiment, the buffer slot has been seted up to the junction of retaining ring and sealing washer, avoids the too big tearing that causes of the junction atress of retaining ring and sealing washer in sealing washer and back gland cooperation process, influences the sealing performance of sealing washer and retaining ring.

And a sealing rubber ring 8 is arranged in the sealing groove and used for plugging a gap between the check ring and the rear gland, so that the axle box assembly can be plugged even if a small amount of lubricating oil permeates into the gap between the check ring and the rear gland, and the sealing performance of the axle box assembly is enhanced.

Still include protecgulum 9, protecgulum 9 cup joints the tip of axletree leading edge 101 just protecgulum 9 with axletree leading edge 101 fixed connection, specifically, the protecgulum passes through the end connection of bolt and axletree, and the periphery side of protecgulum and axletree also is formed with the stair structure, and then is convenient for inject interior fender, inner circle and sealing washer between protecgulum and the main shaft body.

Because the front cover is fixedly connected with the axle, the front cover can rotate along with the rotation of the axle, and if the front cover is directly contacted with the bearing, friction can be generated between the front cover and the bearing, so that the bearing is easily damaged.

Therefore the utility model discloses in still including interior fender 10, interior fender 10 sets up protecgulum 9 with between the bearing 5 and respectively with protecgulum 9 with bearing 5 butt avoids protecgulum and bearing direct to contact, plays the guard action to the bearing, and just interior fender is pressed from both sides tightly to be fixed between protecgulum and bearing, keeps off wearing and tearing in using a period back, conveniently changes.

The inner ring 52, the inner block 10 and the sealing ring 6 are abutted to the end part of the inner ring 52 and are axially limited between the front cover 9 and the spindle body 102, and the inner block, the inner ring and the sealing ring are fixed between the front cover and the spindle body in a clearance fit manner, so that the parts can be conveniently detached, and the subsequent maintenance is convenient.

The bearing 5 is a single-row cylindrical roller shaft, and the single-row cylindrical roller shaft is stable and reliable in use by matching with an axle, and has better durability and long service life.

Another embodiment of the present invention provides a railway bogie, comprising an axle 1 and an axle box assembly as described above, the axle box assembly being adapted to be assembled to the end of the axle 1.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.

Claims

1. A axlebox assembly adapted to be fitted to an axle (1), the axle (1) comprising an axle leading edge (101) and a spindle body (102), the junction of the axle leading edge (101) and the spindle body (102) being of stepped configuration, comprising:

the device comprises a box body (2), a front gland (3) and a rear gland (4) which are arranged on two sides of the box body (2);

the bearing (5) is sleeved in the box body (2), and the bearing (5) is suitable for being sleeved with the front edge (101) of the axle;

the sealing ring (6), the one end of sealing ring (6) with bearing (5) butt, the other end of sealing ring (6) stretches out back gland (4) and orientation deviate from the direction bending type of main shaft body (102) forms retaining ring (7).

2. Axle box assembly according to claim 1, characterized in that the collar (7) is arranged flush against the side of the rear gland (4) and the outer side of the rear gland (4).

3. An axle box assembly according to claim 1, characterized in that the side of the retainer ring (7) facing the rear gland (4) is provided with a first groove (71), the side of the rear gland (4) abutting the retainer ring (7) is provided with a second groove (41), and the first groove (71) and the second groove (41) enclose a sealing groove.

4. The axle-box assembly according to claim 3, further comprising a sealing rubber ring (8) disposed within the sealing groove.

5. The axle-box assembly according to claim 1, further comprising a front cover (9), wherein the front cover (9) is sleeved on the end of the axle front edge (101) and the front cover (9) and the axle front edge (101) are fixedly connected.

6. The axle box assembly according to claim 5, further comprising an inner stop (10), the inner stop (10) being arranged between the front cover (9) and the bearing (5) and abutting the front cover (9) and the bearing (5), respectively.

7. The axlebox assembly according to claim 6, characterized in that the bearing (5) comprises an outer ring (51) and an inner ring (52), the outer ring (51) being arranged between the front gland (3) and the rear gland (4) and abutting the front gland (3) and the rear gland (4), respectively, the inner ring (52) being arranged between the inner stop (10) and the sealing ring (6) and abutting the sealing ring (6) and the inner stop (10), respectively.

8. The axle box assembly according to claim 7, characterized in that the inner ring (52), the inner stop (10) and the end of the sealing ring (6) abutting the inner ring (52) are jointly axially confined between the front cover (9) and the main shaft body (102).

9. The axlebox assembly according to claim 1, characterized in that the bearing (5) is a single row cylindrical roller axle.

10. Railway bogie, comprising an axle (1) and an axlebox assembly according to any of the claims 1-9, which axlebox assembly is adapted to be fitted to the end of the axle (1).