CN102954191B - Walking gear box body of railway vehicle - Google Patents

Abstract

A kind of walking gear box body of railway vehicle, comprise upper box and lower box, upper box is fixedly connected with lower box becomes casing, casing have bearing of input shaft seat and axle bearing seat, axle bearing seat is split type structure, half is positioned on upper box, second half is positioned on lower box, junction plane between upper box and lower box is in being in tilted layout, upper box and lower box surface distributed have some stiffening ribs, stiffening rib is stretched out by the periphery of axle bearing seat, bearing of input shaft seat entirety is positioned on upper box, close bearing of input shaft seat one end of junction plane between upper box and lower box is lower than the one end near axle bearing seat, the angular range of junction plane and substantially horizontal is 25 ° ~ 35 °, the bottom of close bearing of input shaft seat one end of upper box has torsion bar and connects boss, the top of close bearing of input shaft seat one end of upper box has safe support.The present invention is simple and reasonable, safe and reliable and can meet high speed traveling requirement.

Description

Walking gear box body of railway vehicle

Technical field

The present invention relates to a kind of walking gear box body of railway vehicle, belong to rail truck traction gear technical field of driving.

Background technique

At present, although the track vehicle product industry of China has defined the production research system of certain throughput and technical merit, maximum travel speed is substantially at about 100km/h, and minority can reach 120km/h.Circuit transport power is more and more concentrated now, when motion speed is more and more faster, this series products certainly will affect the operational efficiency of circuit to a certain extent, especially can not meet the requirement of Line for Passenger Transportation.

In China Patent Publication No. be: CN201666353U, name is called in the patent documentation of " a kind of gear case body for rail traffic vehicles ", describe a kind of gear case body for rail traffic vehicles, its feature has: casing comprises upper box and lower box, the junction plane of upper lower box is in being in tilted layout, bearing of input shaft seat is positioned at lower box, distributed oil trap in casing.In this technological scheme, junction plane is in tilted layout, bearing of input shaft seat entirety is positioned at lower box, and to a certain extent for the layout of torsion bar reserves certain space, but torsion bar need adopt curved shape, gear-box is simultaneously by axial and vertical tension and torsion active force, the stressed amplification of casing, torsion bar and casing connecting screw rod are subject to shearing stress, when high speed operation, because vibratory impulse is comparatively large, lifting reliability reduces greatly; Oil trap etc. is arranged in box inside face, makes casing casting, processing difficulties on the one hand, also have impact on the integral rigidity of casing to a certain extent; Due to casing not arranging vent, can not inside and outside differential pressure be balanced, difficulty is brought to the design of sealing mechanism, and under high-speed case, easily produce leakage; Pouring orifice position is low and flat, and with to be connected mold joint comparatively near, operating space is limited, and oiling is more difficult.

Summary of the invention

The object of the present invention is to provide a kind of simple and reasonable, safe and reliable, be easy to manufacture, and the walking gear box body of railway vehicle of high speed traveling requirement can be met.

The technological scheme realizing above-mentioned purpose is: a kind of walking gear box body of railway vehicle, comprise upper box and lower box, upper box is fixedly connected with lower box becomes casing, casing have bearing of input shaft seat and axle bearing seat, described axle bearing seat is split type structure, half is positioned on upper box, second half is positioned on lower box, junction plane between described upper box and lower box is in being in tilted layout, described upper box and lower box surface distributed have some stiffening ribs, stiffening rib is stretched out by the periphery of axle bearing seat, described bearing of input shaft seat entirety is positioned on upper box, close bearing of input shaft seat one end of junction plane between described upper box and lower box is lower than the one end near axle bearing seat, the angular range of described junction plane and substantially horizontal is 25 ° ~ 35 °, the bottom of close bearing of input shaft seat one end of described upper box has torsion bar and connects boss, torsion bar connects boss bottom and has attachment hole, the top of close bearing of input shaft seat one end of described upper box has safe support.

Described upper box top arranges breather mounting hole.

The side of described lower box has box house viewing window.

Described lower box has pouring orifice.

Described lower box side has oil level windshield.

The bottom of described lower box has drain oil.

The top edge position of described upper box and the lower limb position of lower box all have some locating and machining benchmark boss.

The bearing of input shaft seat of described upper box and the middle connecting part of axle bearing seat arrange reinforcement boss.

The side of described lower box is provided with nameplate installation base.

After adopting the structure of technique scheme, because described bearing of input shaft seat entirety is positioned on upper box, therefore improve the integral rigidity of bearing of input shaft seat on the one hand, be conducive to the dimensional accuracy and the form and position tolerance that improve the processing of bearing of input shaft seat on the other hand, meet the feature that input shaft rotating speed is higher.Because close bearing of input shaft seat one end of the junction plane between described upper box and lower box is lower than the one end near axle bearing seat, the angular range of described junction plane and substantially horizontal is 25 ° ~ 35 °, therefore, just enough spaces are reserved for the layout of torsion bar, without the need to torque rod design being become the special-shaped shape such as bending, thus gear-box can adopt vertical lifting mode, suspension rod is only by vertical pulling force, tensile stress is minimum, avoid the tension and torsion power because curved shape suspension rod produces gear-box, also make the design and manufacture of torsion bar more simple, reliable simultaneously; Bottom due to close bearing of input shaft seat one end of described upper box has torsion bar and connects boss, and torsion bar connects boss bottom and has attachment hole, therefore, makes the connection of torsion bar and gear-box very easy, is beneficial to maintenance simultaneously; Again because the top of close bearing of input shaft seat one end of described upper box has safe support, when torsion bar occurring in vehicle travel process and losing efficacy, make gear-box still remain on normal safe position, prevent gear-box to slide down initiation serious accident; Also because described axle bearing seat is split type structure, half is positioned on upper box, second half is positioned on lower box, junction plane between described upper box and lower box is in being in tilted layout, described upper box and lower box surface distributed have some stiffening ribs, stiffening rib is stretched out by the periphery of axle bearing seat, therefore simple and reasonable, safe and reliable.In addition, upper box is arranged breather mounting hole, make gear-box when variable-speed operation, by the breather installed, effective balance gear roller box inside and outside differential pressure, is conducive to the sealing of gear-box; Lower box side arranges viewing window, is convenient to observe gear-box inner body behaviour in service, is beneficial to maintenance and the maintenance of gear-box; Lower box is arranged drain oil, pouring orifice and oil level windshield, be convenient to observe oil level and oil product, more oil change, thoroughly put the rotten lubricant oil in clean casing, be beneficial to the cleaning in casing; Owing to upper and lower casing being provided with some locating and machining benchmark boss, be convenient to the processing and loading clamp of gear-box, the machining accuracy of favourable raising gear-box and work efficiency; Bearing of input shaft seat and the middle connecting part of axle bearing seat arrange reinforcement boss, greatly improve the rigidity of casing.

Accompanying drawing explanation

Fig. 1 is the structure front view of walking gear box body of railway vehicle of the present invention;

Fig. 2 is sectional view of the present invention;

Fig. 3 is the application principle figure of safe support of the present invention;

Fig. 4 is the B direction view of Fig. 3.

Embodiment

The present invention is further detailed explanation for the embodiment provided below in conjunction with accompanying drawing.

As Fig. 1, shown in 2, a kind of walking gear box body of railway vehicle, comprise upper box 1 and lower box 2, upper box 1 is fixedly connected with lower box 2 becomes casing, casing have bearing of input shaft seat 3 and axle bearing seat 4, described axle bearing seat 4 is split type structure, half is positioned on upper box 1, second half is positioned on lower box 2, junction plane between described upper box 1 and lower box 2 is in being in tilted layout, described upper box 1 and lower box 2 surface distributed have some stiffening ribs 5, stiffening rib 5 is stretched out by the periphery of axle bearing seat 4, described bearing of input shaft seat 3 entirety is positioned on upper box 1, close bearing of input shaft seat 3 one end of junction plane between described upper box 1 and lower box 2 is lower than the one end near axle bearing seat 4, the angular range of described junction plane and substantially horizontal is 25 ° ~ 35 °, the bottom of close bearing of input shaft seat 3 one end of described upper box 1 has torsion bar and connects boss 6, attachment hole is had bottom torsion bar connection boss 6, the top of close bearing of input shaft seat 3 one end of described upper box 1 has safe support 7.

As shown in Figure 2, in order to ensure that gear-box is under high-speed working condition, does not produce pressure reduction inside and outside casing, prevent gear-box to produce oil leakage phenomenon, described upper box 1 top arranges breather mounting hole 8.

As shown in Figure 2, for the ease of observing gear-box inner body behaviour in service, be beneficial to maintenance and the maintenance of gear-box, the side of described lower box 2 has box house viewing window 9.

As shown in Figure 2, for the ease of oiling, described lower box 2 has pouring orifice 10.

As shown in Figure 1, for the ease of observing oil level, described lower box 2 side has oil level windshield 11.

As shown in Figure 1, for the ease of more oil change, cleaning gear-box, the bottom of described lower box 2 has drain oil 12.

As shown in Figure 1, Set and Positioning when processing for the ease of casing, the top edge position of described upper box 1 and the lower limb position of lower box 2 all have some locating and machining benchmark boss 13.

As shown in Figure 1, in order to improve casing integral rigidity, the bearing of input shaft seat 3 of described upper box 1 and the middle connecting part of axle bearing seat 4 are arranged strengthens boss 14.

As shown in Figure 1, for the ease of casing mark, the side of described lower box 2 is provided with nameplate installation base 15.

As shown in Figure 3,4, when the present invention applies, the safe support 7 in the present invention is inserted in the hole of the suspension member 15 on bogie 14, and torsion bar connects on boss 6 and connects torsion bar (not drawing in figure).When torsion bar occurring in vehicle travel process and losing efficacy, because safe support 7 is inserted in the hole of the suspension member 15 on bogie 14, therefore gear-box still can remain on normal safe position, prevents gear-box to slide down initiation serious accident.

Claims (9)

1. a walking gear box body of railway vehicle, comprise upper box (1) and lower box (2), upper box (1) is fixedly connected with lower box (2) becomes casing, casing have bearing of input shaft seat (3) and axle bearing seat (4), described axle bearing seat (4) is split type structure, half is positioned on upper box (1), second half is positioned on lower box (2), junction plane between described upper box (1) and lower box (2) is in being in tilted layout, described upper box (1) and lower box (2) surface distributed have some stiffening ribs (5), stiffening rib (5) is stretched out by the periphery of axle bearing seat (4), it is characterized in that:

A, described bearing of input shaft seat (3) entirety are positioned on upper box (1),

Close bearing of input shaft seat (3) one end of b, junction plane between described upper box (1) and lower box (2) is lower than the one end near axle bearing seat (4), and the angular range of described junction plane and substantially horizontal is 25 ° ~ 35 °,

The bottom of close bearing of input shaft seat (3) one end of c, described upper box (1) has torsion bar and connects boss (6), and torsion bar connects boss (6) bottom and has attachment hole,

The top of close bearing of input shaft seat (3) one end of d, described upper box (1) has safe support (7).

2. walking gear box body of railway vehicle according to claim 1, is characterized in that: described upper box (1) top arranges breather mounting hole (8).

3. walking gear box body of railway vehicle according to claim 1, is characterized in that: the side of described lower box (2) has box house viewing window (9).

4. walking gear box body of railway vehicle according to claim 1, is characterized in that: described lower box (2) has pouring orifice (10).

5. walking gear box body of railway vehicle according to claim 1, is characterized in that: described lower box (2) side has oil level windshield (11).

6. walking gear box body of railway vehicle according to claim 1, is characterized in that: the bottom of described lower box (2) has drain oil (12).

7. walking gear box body of railway vehicle according to claim 1, is characterized in that: the top edge position of described upper box (1) and the lower limb position of lower box (2) all have some locating and machining benchmark boss (13).

8. walking gear box body of railway vehicle according to claim 1, is characterized in that: the bearing of input shaft seat (3) of described upper box (1) and the middle connecting part of axle bearing seat (4) are arranged strengthens boss (14).

9. walking gear box body of railway vehicle according to claim 1, is characterized in that: the side of described lower box (2) is provided with nameplate installation base (15).