WO2012062138A1

WO2012062138A1 - Railway locomotive, and gear box and axle-hung box coupling device thereof

Info

Publication number: WO2012062138A1
Application number: PCT/CN2011/078113
Authority: WO
Inventors: 高震天; 贾彦光; 王惠玉
Original assignee: 中国北车集团大连机车车辆有限公司
Priority date: 2010-11-12
Filing date: 2011-08-08
Publication date: 2012-05-18
Also published as: AU2011328772B2; AU2011328772A9; CN102039909B; AU2011328772A1; CN102039909A

Abstract

Provided in the present invention are a railway locomotive, and a gearbox and axle-hung box coupling device thereof, wherein the coupling device comprises a gearbox and an axle-hung box; a rubber coupler is fixed to the gearbox; the rubber coupler comprises an outer body, a rubber pad and an inner shaft sleeve, wherein a central hole is provided on the outer body, the inner shaft sleeve penetrates through the central hole, and the rubber pad is arranged between the outer wall of the inner shaft sleeve and the inner wall of the central hole; a locating clamp is arranged between the axle-hung box and the rubber coupler, a locating hole and a locating edge are provided on the locating clamp, the locating hole is opposite to the shaft hole of the inner shaft sleeve, and the outer wall of the outer body of the rubber coupler is locked by the locating edge; a coupling bolt penetrates through a first bolt hole on the axle-hung box, the locating hole on the locating clamp and the shaft hole in the inner shaft sleeve of the rubber coupler in turn, so as to couple and fix the axle-hung box and the gearbox. The present invention prevents the gearbox from developing structural cracks which cause oil leakage.

Description

Railway locomotive and its gearbox and axle box coupling device

Technical field

The invention relates to a railway locomotive component connecting technology, in particular to a railway locomotive and a gearbox and a axle box connecting device thereof. Background technique

In the prior art axle suspension locomotive, the motor can be elastically suspended on the locomotive frame, and the output power of the motor can be transmitted to the wheelset through the gearbox and the axle box coupling device. Specifically, as shown in FIG. 1 , FIG. 1 is a schematic structural view of a prior art gear box and a axle box coupling device, which may include a gear box 11 and a axle box 12 , wherein the gear box 11 is mounted on the motor and the axle Between the boxes, one end is connected to the motor, and the other end is rigidly coupled to the axle box 12 through the mounting seat 29; the axle box 12 is disposed on the axle, and the motor output power can be transmitted to the wheel pair through the axle. The wheel pair acts directly on the rail.

The above prior art has the following technical defects: In the locomotive operation, the axle box will vibrate with the wheel pair, because the vibration frequency of the wheel pair and the motor are different, and the vibration of the different frequency is received by the gear box, resulting in frequent occurrence Cracks in the gear box and oil leakage in the gearbox seriously affect the safety of the railway locomotive.

Summary of the invention

The object of the present invention is to provide a railway locomotive and a gear box and a axle box connecting device thereof, so as to solve the problem that cracks and oil leakage occur when the gear box is subjected to the vibration of the wheel pair and the motor, and the gear box does not crack and does not leak oil. .

The invention provides a gear box and a axle box coupling device, which comprise a connected gear box and a shaft Box; also includes:

a rubber coupling, which is fixed on the gear box; the rubber coupling includes an outer body, a rubber pad and an inner sleeve, the outer body is provided with a central hole, and the inner sleeve is disposed through the central hole The rubber pad is disposed between an outer wall of the inner sleeve and an inner wall of the central hole;

a positioning card disposed between the axle box and the rubber coupling, wherein the positioning card is provided with a positioning hole and a positioning edge, and the positioning hole is opposite to the shaft hole of the inner sleeve, the positioning Jamming the outer wall of the outer body of the rubber coupling;

a coupling bolt, which is sequentially threaded through the first bolt hole on the axle box, a positioning hole on the positioning card, and a shaft hole in the inner sleeve of the rubber coupling, and the axle box and the gear The box is connected and fixed.

In the gearbox and the axle box coupling device as described above, the outer body is provided with a plurality of second bolt holes, and the plurality of mounting bolts respectively pass through the plurality of second bolt holes, and the rubber coupling is fixed at On the gearbox.

The gearbox and the axle box coupling device as described above further comprising: a stop pad; the stop pad being disposed between the plurality of mounting bolts.

In the gear box and the axle box coupling device as described above, the positioning edge of the positioning card is provided with a reinforcing rib.

The gearbox and the axle box coupling device as described above further comprising: an adjustment pad; the adjustment pad being disposed between the positioning card and the axle box.

The gear box and the axle box coupling device as described above, the positioning card is a cast steel positioning card.

The invention provides a railway locomotive, comprising a motor, a gear box and a axle box coupling device, an axle and a wheel pair; the wheel pair is mounted on the axle, and the gearbox and the axle box coupling device respectively The motor and the axle are connected; the gearbox and the axle box coupling device adopt the gear box and the axle box coupling device provided by the invention; the gearbox and the gearbox in the gearbox and the axle box coupling device In the motor connection, the axle box in the gearbox and the axle box coupling device is mounted on the axle.

The railway locomotive and the gear box and the axle box connecting device of the invention can effectively absorb the high frequency vibration in different directions by providing a rubber coupling and a positioning card between the gear box and the axle box, thereby avoiding the structure of the gear box. Sexual cracks cause oil leakage and provide a reliable guarantee for the safe operation of the locomotive. DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

1 is a schematic structural view of a prior art gear box and a axle box coupling device;

Figure 2 is a front elevational view showing an embodiment of the gear box and the axle box coupling device of the present invention;

Figure 3 is a plan view showing an embodiment of the gear box and the axle box coupling device of the present invention;

Figure 4 is a cross-sectional view taken along line A-A of Figure 3;

Figure 5 is a plan view of the rubber coupling of Figure 2;

Figure 6 is a cross-sectional view taken along line B-B of Figure 5;

Figure 7 is a plan view of the positioning card of Figure 2;

Figure 8 is a side view of the positioning card of Figure 2;

Figure 9 is a half cross-sectional view of Figure 7.

Description of the reference signs: 11-gearbox; 12-lock axle box; 13-rubber coupling;

14-positioning card; 15-joint bolt; 16-outer body;

17-rubber pad; 18-inner bushing; 19-center hole;

20-positioning hole; 21-positioning edge; 22-axis hole;

23-first bolt hole; 24-second bolt hole; 25-mounting bolt;

26-relief; 27-stop gasket; 28-adjusting gasket;

29- Mounting. detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Some embodiments, rather than all of the embodiments, are invented. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The main technical solution of the present invention consists in changing the rigid coupling between the gearbox and the axle box to an elastic coupling, for example, by means of a rubber coupling, a positioning card and a coupling bolt. Through the above elastic coupling, high-frequency vibration in different directions can be effectively absorbed and the positioning of the gear box can be maintained, and the crack and oil leakage problem of the gear box can be solved.

The technical solution of the present invention will be further described in detail below through the accompanying drawings and specific embodiments. 2 is a front view of the embodiment of the gearbox and the axle box coupling device of the present invention, and FIG. 3 is a plan view of the embodiment of the gearbox and the axle box coupling device of the present invention, and FIG. 4 is a cross-sectional view taken along line AA of FIG. As shown in FIG. 2 to FIG. 4, the gear box and the axle box coupling device of the embodiment may include a gear box 11, The axle box 12, the rubber coupling 13, the positioning card 14 and the coupling bolt 15 are held.

The rubber coupling 13 is fixed on the gear box 11; the rubber coupling 13 may include an outer body 16, a rubber pad 17 and an inner sleeve 18, and the inner sleeve 18 is disposed in the central hole 19 provided on the outer body 16, the rubber pad 17 is disposed between the outer wall of the inner sleeve 18 and the inner wall of the center hole 19. The inner sleeve 18 includes a shaft hole 22, and the shaft hole 22 can be used for threading a bolt; the rubber pad 17 is closely disposed to be attached to the outer wall of the inner sleeve 18 and the inner wall of the center hole 19, and can effectively absorb different High frequency vibration in the direction.

The positioning card 14 is disposed between the axle box 12 and the rubber coupling 13; the positioning card 14 is provided with a positioning hole 20 and a positioning edge 21, and the positioning hole 20 is opposite to the shaft hole 22 of the inner sleeve 18, and the positioning edge 21 is The outer wall of the outer body 16 of the rubber coupling 13 is caught. The positioning hole 20 can also be used for threading the bolt; the positioning card 14 is pressed against the inner sleeve 18, and the positioning edge 21 is clamped on both sides of the outer body 16 to provide positioning, on the one hand, the rubber coupling 13 can be stabilized, in rubber On the basis of the absorption of the pad, the vibration is further effectively reduced, and the positioning and holding of the gear box is realized. On the other hand, the positioning card 14 is equivalent to the separation of the axle box 12 and the gear box 11 so that the two can vibrate independently, compared to the existing In the technology, the gear box 11 is affected by the double vibration of the axle box 12 and the motor, and the vibration degree of the gear box 11 can be greatly reduced, thereby solving the problem of crack and oil leakage of the gear box.

A coupling bolt 15 is sequentially passed through the first bolt hole 23 on the axle box 12, the positioning hole 20 on the positioning card 14, and the shaft hole 22 in the inner sleeve 18 of the rubber coupling 13, and the axle box 12 is The gear box 11 is coupled and fixed. When the total assembly of the gearbox 11 and the axle box 12 is performed, the axle box 12 and the gearbox 11 can be fastened by the coupling bolts 15, which can ensure the between the gearbox 11 and the axle box 12. Position the connection.

Specifically, the structure of the rubber coupling 13 can be seen in FIG. 5 and FIG. 6, FIG. 5 is a plan view of the rubber coupling in FIG. 2, and FIG. 6 is a cross-sectional view taken along line BB in FIG. The outer body of the rubber coupling 16 A plurality of second bolt holes 24 may be provided, and the rubber couplings are fixed to the gear case by a plurality of mounting bolts 25 (see Figs. 2 and 3) passing through the plurality of second bolt holes 24. For example, in the present embodiment, the rubber coupling can be fixed to the gear case by four mounting bolts 25.

Specifically, the structure of the positioning card 14 can be seen in FIG. 7, FIG. 8 and FIG. 9. FIG. 7 is a top view of the positioning card of FIG. 2, FIG. 8 is a side view of the positioning card of FIG. 2, and FIG. Half section. The positioning card may be a positioning card of the cast steel material, for example, may be ZG150-450. A positioning hole 20 is disposed in the position, and the positioning hole 20 can be circular to oppose the shaft hole of the inner sleeve for threading the bolt. Two positioning edges 21 can be arranged on the positioning card for positioning on the outer side of the rubber coupling. In addition, the positioning edge 2 of the positioning card may further be provided with a reinforcing rib 26, which can increase the strength of the positioning card.

Further, referring to Figs. 2 and 4, in order to prevent the mounting bolt 25 from loosening, a stopper spacer 27 may be provided between the plurality of mounting bolts 25. For example, in the present embodiment, four mounting bolts 25 may be provided, and two retaining washers 27 are provided correspondingly, and each of the retaining washers 27 is disposed between the two mounting bolts 25. In addition, an adjustment washer 28 can be disposed between the positioning card 14 and the axle box 12, which can compensate for the deviation caused by the machining of the gearbox 11 and the axle box 12, and avoids additional assembly when the gearbox is installed. stress.

In the gear box and the axle box coupling device of the embodiment, by providing a rubber coupling and a positioning card between the gear box and the axle box, the high frequency vibration in different directions can be effectively absorbed, and the structural crack of the gear box is avoided. The oil leakage causes technical guarantee for the safe and reliable operation of the locomotive; and the system is simple in structure, easy to install and light in weight.

The embodiment of the invention also provides a railway locomotive, which may include a motor, a gearbox and a axle box coupling device, an axle and a wheelset. Where the wheel sets are mounted on the axle, the gearbox and the axlebox The coupling device is connected to the motor and the axle, respectively. The gear box and the axle box coupling device of the embodiment may adopt the gear box and the axle box coupling device provided by any embodiment of the present invention; the gear box and the gear box in the axle box coupling device are connected with the motor, and the gear box The axle box in the axle box coupling device is mounted on the axle. The car can greatly reduce the vibration impact of the gearbox, avoiding structural cracks in the gearbox and causing oil leakage.

It should be noted that the above embodiments are only for explaining the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: The technical solutions described in the foregoing embodiments are modified, or some of the technical features are equivalently replaced. The modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

Rights request

A railway locomotive gearbox and a cage box coupling device, comprising a connected gearbox and a axle box; and characterized in that:

2 . The gearbox and the axle box coupling device according to claim 1 , wherein the outer body is provided with a plurality of second bolt holes, and the plurality of mounting bolts respectively pass through the plurality of second bolt holes And fixing the rubber coupling to the gearbox.

3. The gearbox and axle box coupling device of claim 2, further comprising: a stop washer; the stop washer being disposed between the plurality of mounting bolts.

The gearbox and the axle box coupling device according to claim 1, wherein the positioning edge of the positioning card is provided with a reinforcing rib.

5. The gearbox and axle box coupling device according to claim 1, further comprising: an adjustment pad; the adjustment pad being disposed between the positioning card and the axle box.

6. The gearbox and axle box coupling device according to claim 1, wherein The positioning card is a cast steel positioning card.

7. A railway locomotive comprising: a motor, a gearbox and a axle box coupling device, an axle and a wheel pair; the wheelset is mounted on the axle, the gearbox and the axlebox coupling device respectively and the motor The gear box and the axle box coupling device are the gear box and the axle box coupling device according to any one of claims 1 to 6;

A gear box in the gearbox and the axle box coupling device is coupled to the motor, and the axle box in the gearbox and the axle box coupling device is mounted on the axle.