CN215204885U - Built-in axle box suspension railway wagon bogie axle assembly - Google Patents
Built-in axle box suspension railway wagon bogie axle assembly Download PDFInfo
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- CN215204885U CN215204885U CN202121242915.5U CN202121242915U CN215204885U CN 215204885 U CN215204885 U CN 215204885U CN 202121242915 U CN202121242915 U CN 202121242915U CN 215204885 U CN215204885 U CN 215204885U
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Abstract
A built-in axle box suspension rail wagon bogie axle comprises an axle and an axle box; the wheel shaft consists of a vehicle shaft, a vehicle wheel, a bearing device, a brake disc and a sealing cover; the axle body of the axle is provided with a mounting seat and a bearing shoulder, the mounting seat comprises a wheel seat, a bearing seat and a brake disc seat, and sealing covers are arranged at two ends of the axle; the two wheels are symmetrically arranged at two shaft ends of the axle; the two bearing devices are correspondingly arranged on the inner sides of the two wheels, each bearing device consists of a bearing and a baffle ring, the bearings are arranged on the inner sides of the two wheels, and the baffle rings are arranged at two ends of the bearings; the brake disc is arranged between the two bearing devices; the axle box consists of an upper axle box body and a lower axle box body which are fixedly connected, and a bearing saddle surface at the top of the upper axle box body is matched with a bearing on an axle. The bogie wheel shaft assembly can prolong the service life of wheels, reduce the unsprung mass of the bogie and improve the dynamic performance.
Description
The technical field is as follows:
the utility model relates to a railway transportation equipment technical field especially relates to railway freight car axletree and makes technical field, and specific theory is a built-in axle box hangs railway freight car bogie shaft and constitutes.
Background art:
the existing railway truck axles and suspensions can be classified into outboard type and inboard type according to the position of the bearing, and into tread brake and disc brake according to the braking mode. At present, most of domestic railway freight cars are hung by adopting outer side axle boxes and are braked by treads. The outboard axle box suspension frame is mounted outboard of the wheelset, allowing the truck frame to form a wheeloutboard support mode. The axle used in the outboard bearing mode has a greater weight than the axle used in the inboard bearing mode, causing a greater force on the wheel track. The vehicle adopting tread braking causes overhigh thermal load of the wheel when braking in a line with large altitude fall, and influences the service life of the wheel.
The utility model has the following contents:
the utility model provides a built-in axle box hangs railway freight car bogie shaft and constitutes, it not only can improve wheel life to can make the unsprung mass of bogie reduce, improve the dynamic performance.
The utility model discloses a realize above-mentioned purpose, adopt following technical scheme:
the utility model provides a built-in axle box suspension rail wagon bogie axle assembly, which comprises an axle and an axle box; the wheel shaft consists of a vehicle shaft, a vehicle wheel, a bearing device, a brake disc and a sealing cover; the axle body of the axle is provided with a mounting seat and a baffle, the mounting seat comprises a wheel seat, a bearing seat and a brake disc seat, the baffle comprises a bearing baffle shoulder, and sealing covers are arranged at two ends of the axle; the two wheels are symmetrically arranged at two shaft ends of the axle; the two bearing devices are correspondingly arranged at the inner sides of the two wheels, the axial positions of the bearing devices are clamped and positioned by bearing retaining shoulders on the axle and wheel hubs, each bearing device consists of a bearing and retaining rings, the bearings are arranged at the inner sides of the two wheels, and the retaining rings are arranged at the two ends of the bearing and are pressed on the bearings; the brake disc is arranged between the two bearing devices; the axle box is a split axle box and consists of an upper axle box body and a lower axle box body, wherein a bearing saddle surface at the top of the upper axle box body is matched with a bearing arranged on an axle, and the upper axle box body is fixedly connected with the lower axle box body.
And an assembly process hole or a sealing hole is formed at the axle end of the axle.
The mounting seats and the baffles arranged on the axle are gradually increased from two ends to the middle.
The number of the brake discs is selected according to the braking requirement.
The baffle ring has elasticity.
The baffle rings are provided with different widths.
The upper shaft box body is shaped like a Chinese character ji.
The lower shaft box body is in a three-layer ladder shape.
The clearance between the bearing and the boss of the lower shaft box body is smaller than the height of the bearing shoulder of the upper shaft box body.
The two ends of the upper shaft box body are provided with bearing platforms and bolt holes, the two ends of the lower shaft box body are provided with bolt holes, and the upper shaft box body and the lower shaft box body are connected through bolts; a circular vertical stop catch is arranged in the center of the top of the upper shaft box body; two lifting threaded holes are formed in the inner side of the top of the upper shaft box body; the left and right sides of the saddle part of the upper shaft box body are provided with wearing plate welding surfaces.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model discloses a rim plate braking does not exert braking force on the wheel, reduces heat load and wheel wearing and tearing to improve wheel life.
2. The utility model discloses because the axle journal centre-to-centre spacing shortens, axletree length size shortens, and the wheel pair quality reduces to the unsprung mass of bogie reduces, improves the dynamics performance.
3. The utility model discloses an axle box is split type axle box, and for both sides bearing mode, the axle box divide into upper and lower two parts, for detachable axle box, is convenient for assemble, dismantles and overhauls. The upper shaft box body and the lower shaft box body are in small interference fit to form a bearing stress integral structure, and when bearing platforms on two sides of the upper shaft box body bear stress, the lower shaft box body in small interference fit provides longitudinal support to prevent the upper shaft box body from being deformed and damaged due to overlarge stress. The additional increase of the fastening of the transverse assembling bolt is to prevent the lower axle box body from falling off due to vibration in the running process of the vehicle.
Description of the drawings:
fig. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of the three-dimensional structure of the wheel axle of the present invention;
FIG. 3 is a front view of the axle of the present invention;
fig. 4 is a schematic view of the connection of the axle, wheel and bearing of the present invention;
fig. 5 is a schematic perspective view of an axle box according to the present invention.
Reference numbers in the figures:
1-wheel axle, 2-axle box.
1.1-axle, 1.2-wheel, 1.3-bearing device, 1.4-brake disk and 1.5-sealing cover.
1.1.1-bearing retaining shoulder, 1.3.1-bearing and 1.3.2-retaining ring.
2.1-upper shaft box body and 2.2-lower shaft box body.
2.1.1-vertical backstop, 2.1.2-lifting threaded hole and 2.1.3-wearing plate welding surface.
The specific implementation mode is as follows:
the present invention will be further described with reference to the following embodiments, which are intended to illustrate the principles of the present invention without limiting the present invention in any way, and the present invention is not beyond the scope of the present invention.
Referring to fig. 1-5, the present invention provides a built-in axle box suspension railway wagon bogie axle assembly, which mainly comprises an axle 1 and an axle box 2. The wheel shaft 1 mainly comprises an axle 1.1, wheels 1.2, a bearing device 1.3, a brake disc 1.4, a sealing cover 1.5 and the like. The axle body of the axle 1.1 is provided with a mounting seat and a stopper, the mounting seat comprises a wheel seat, a bearing seat and a brake disc seat, and the stopper comprises a bearing stopper shoulder 1.1.1; the mounting seats and the baffles arranged on the axle 1.1 are gradually increased from two ends to the middle; an assembly process hole or a sealing hole is formed in the shaft end of the axle 1.1, sealing covers 1.5 are mounted at two ends of the axle 1.1, the sealing covers 1.5 are connected with the shaft end of the axle 1.1 through shaft end bolts, the sealing covers 1.5 play a role in protecting the axle 1.1, and the phenomenon that the axle 1.1 cannot be turned to repair the wheel 1.2 due to the fact that a center hole in the end of the axle 1.1 is corroded and damaged is avoided. The wheels 1.2 are provided with two wheels, which are symmetrically arranged at two shaft ends of the axle 1.1. Two bearing device 1.3 correspond and set up at two wheels 1.2 inboards, bearing device 1.3's axial position relies on bearing on axletree 1.1 to keep off shoulder 1.1.1 and wheel 1.2 wheel hub clamp tightly the location, every bearing device 1.3 comprises bearing 1.3.1 and fender ring 1.3.2, bearing 1.3.1 sets up at two wheels 1.2 inboards, fender ring 1.3.2 sets up at bearing 1.3.1 both ends, through interference fit pressure equipment on bearing 1.3.1. The baffle ring 1.3.2 has certain elasticity, and can reduce the axial positioning rigidity of the bearing 1.3.1 in the application of the wheel shaft 1; the baffle rings 1.3.2 are provided with different widths. An elastic baffle ring 1.3.2 with adjustable width is arranged between the bearing 1.3.1 and the axial positioning baffle and is used for adjusting the position of the bearing 1.3.1 or the wheel 1.2. The number of brake discs 1.4 can be selected according to the braking requirements, the brake discs 1.4 being arranged between the two bearing devices 1.3.
The axle box 2 is split type axle box, mainly comprises upper shaft box 2.1, lower shaft box 2.2, bolt etc. and when adopting split type axle box convenient to overhaul and maintain, can remove axle box 2 under the condition of not withdrawing wheel 1.2, is convenient for separate the shaft 1 alone and overhauls. The upper shaft box body 2.1 is in a shape of a Chinese character ji, a bearing saddle surface at the top is matched with a bearing 1.3.1 arranged on the axle 1.1, and bearing platforms and bolt holes are arranged at two ends. The lower shaft box body 2.2 is in a three-layer ladder shape, and bolt holes are arranged at two ends. The two ends of the upper shaft box body 2.1 and the lower shaft box body 2.2 are in small interference fit, when the two spring bearing platforms of the axle box 2 are stressed, the stress state of the upper shaft box body 2.1 can be effectively improved, and the upper shaft box body 2.1 and the lower shaft box body 2.2 are connected through a transverse assembling bolt. After the axle box 2 and the bearing 1.3.1 are assembled, a proper gap is reserved between the bearing 1.3.1 and the lower axle box 2.1, the gap between the bearing 1.3.1 and the boss of the lower axle box 2.2 is ensured to be smaller than the height of the bearing shoulder of the upper axle box 2.1, and the bearing 1.3.1 is prevented from jumping out of the axle box 2 under abnormal conditions. The center of the top of the upper shaft box body 2.1 is provided with a circular vertical stop 2.1.1. Two lifting threaded holes 2.1.2 are formed in the inner side of the top of the upper shaft box body 2.1 and used for installing a shaft box crane, and when the shaft box crane is convenient to lift, the wheel shaft assembly and the framework are lifted together. The left side and the right side of the saddle part of the upper shaft box body 2.1 are provided with wearing plate welding surfaces 2.1.3 which are used for welding wear-resistant metal plates and prolonging the service life of the axle box 2 body.
The brake disc 1.4, the bearing device 1.3 and the wheel 1.2 are sequentially arranged in sequence during assembly, and the three are matched with the axle 1.1 in an interference fit manner and are pressed on the axle 1.1. The wheel 1.2 and the brake disc 1.4 are positioned with a press-fitting force, the bearing is positioned by means of a retaining ring, and the width of the elastic retaining ring can be selected as required. And after the press mounting is finished, sealing covers 1.5 are assembled at two ends of the axle 1.1 for sealing, so that the end parts are protected from colliding and rustiness. Then the saddle surface of the upper shaft box body 2.1 is matched with the bearing 1.3.1, then the lower shaft box body 2.1 is pressed in, and finally the bolt fastening is adopted, so that the proper gap between the bearing 1.3.1 and the boss of the lower shaft box body 2.2 is ensured.
The disassembly is in the reverse order of assembly.
Claims (10)
1. The utility model provides a built-in axle box hangs railway freight car bogie shaft and constitutes which characterized by: the bogie wheel shaft assembly consists of a wheel shaft (1) and an axle box (2); the wheel shaft (1) consists of an axle (1.1), wheels (1.2), a bearing device (1.3), a brake disc (1.4) and a sealing cover (1.5); the axle body of the axle (1.1) is provided with a mounting seat and a baffle, the mounting seat comprises a wheel seat, a bearing seat and a brake disc seat, the baffle comprises a bearing baffle shoulder (1.1.1), and two ends of the axle (1.1) are provided with sealing covers (1.5); two wheels (1.2) are symmetrically arranged at two shaft ends of the axle (1.1); the two bearing devices (1.3) are correspondingly arranged at the inner sides of the two wheels (1.2), the axial positions of the bearing devices (1.3) are clamped and positioned by bearing retaining shoulders (1.1.1) on the axle (1.1) and wheel hubs of the wheels (1.2), each bearing device (1.3) consists of a bearing (1.3.1) and a retaining ring (1.3.2), the bearings (1.3.1) are arranged at the inner sides of the two wheels (1.2), the retaining rings (1.3.2) are arranged at two ends of the bearings (1.3.1) and are pressed on the bearings (1.3.1); the brake disc (1.4) is arranged between the two bearing devices (1.3); the axle box (2) is a split type axle box and consists of an upper axle box body (2.1) and a lower axle box body (2.2), a bearing saddle surface at the top of the upper axle box body (2.1) is matched with a bearing (1.3.1) arranged on an axle (1.1), and the upper axle box body (2.1) is fixedly connected with the lower axle box body (2.2).
2. A built-in axlebox suspension railway freight car truck axle assembly as claimed in claim 1, wherein: and an assembly process hole or a sealing hole is formed at the shaft end of the axle (1.1).
3. A built-in axlebox suspension railway freight car truck axle assembly as claimed in claim 1, wherein: the mounting seats and the baffles arranged on the axle (1.1) are gradually increased from two ends to the middle.
4. A built-in axlebox suspension railway freight car truck axle assembly as claimed in claim 1, wherein: the number of the brake discs (1.4) is selected according to the braking requirement.
5. A built-in axlebox suspension railway freight car truck axle assembly as claimed in claim 1, wherein: the baffle ring (1.3.2) has elasticity.
6. A built-in axlebox suspension railway freight car truck axle assembly as claimed in claim 1, wherein: the baffle rings (1.3.2) are provided with different widths.
7. A built-in axlebox suspension railway freight car truck axle assembly as claimed in claim 1, wherein: the upper shaft box body (2.1) is shaped like a Chinese character ji.
8. A built-in axlebox suspension railway freight car truck axle assembly as claimed in claim 1, wherein: the lower shaft box body (2.2) is in a three-layer ladder shape.
9. A built-in axlebox suspension railway freight car truck axle assembly as claimed in claim 1, wherein: the clearance between the bearing (1.3.1) and the boss of the lower shaft box body (2.2) is less than the height of the bearing shoulder of the upper shaft box body (2.1).
10. A built-in axlebox suspension railway freight car truck axle assembly as claimed in claim 1, wherein: the two ends of the upper shaft box body (2.1) are provided with bearing platforms and bolt holes, the two ends of the lower shaft box body (2.2) are provided with bolt holes, and the upper shaft box body (2.1) is connected with the lower shaft box body (2.2) through bolts; a circular vertical stop catch (2.1.1) is arranged at the center of the top of the upper shaft box body (2.1); two lifting threaded holes (2.1.2) are formed in the inner side of the top of the upper shaft box body (2.1); the left and right sides of the saddle part of the upper shaft box body (2.1) are provided with wearing plate welding surfaces (2.1.3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121242915.5U CN215204885U (en) | 2021-06-04 | 2021-06-04 | Built-in axle box suspension railway wagon bogie axle assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121242915.5U CN215204885U (en) | 2021-06-04 | 2021-06-04 | Built-in axle box suspension railway wagon bogie axle assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215204885U true CN215204885U (en) | 2021-12-17 |
Family
ID=79423477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121242915.5U Active CN215204885U (en) | 2021-06-04 | 2021-06-04 | Built-in axle box suspension railway wagon bogie axle assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215204885U (en) |
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2021
- 2021-06-04 CN CN202121242915.5U patent/CN215204885U/en active Active
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