CN201843983U

CN201843983U - Bearing lubrication device of high-speed shift gear box

Info

Publication number: CN201843983U
Application number: CN2010205790367U
Authority: CN
Inventors: 殷盛福; 黎剑锋
Original assignee: Zhuzhou CSR Times Electric Co Ltd
Current assignee: Zhuzhou CRRC Times Electric Co Ltd
Priority date: 2010-10-27
Filing date: 2010-10-27
Publication date: 2011-05-25
Anticipated expiration: 2020-10-27

Abstract

The utility model relates to a bearing lubrication device of a high-speed shift gear box, which comprises a high-speed shift gear. The high-speed shift gear is sleeved on a shift fork shaft through two rows of bearings, the outer rings of the bearings are respectively embedded in bearing blocks at the two ends of the high-speed shift gear, the inner rings of the bearings are respectively sleeved on the shift fork shaft, and the high-speed shift gear can rotate around the shift fork shaft. The bearing lubrication device is characterized in that the center of the shift fork shaft is provided with a slender hole the slender hole extends to positions of the bearings supporting the position for installation of the high-speed shift gear, two radial small round holes are symmetrically arranged along the circumferential direction of the shaft diameter at the end of the slender hole of the shift fork shaft, are communicated with the slender hole and are also communicated with space between the two rows of bearings of the high-speed shift gear, and the bearings are lubricated with lubricating pressure oil passing through the slender hole and the radial small round holes.

Description

A kind of high speed change gear axle box bearing lubricating fitting

Technical field

The utility model relates to a kind of mechanically operated modular construction, relates to a kind of high speed change gear axle box bearing lubricating structure specifically, mainly is consider the sliding selector shaft upper bearing (metal) lubricated.

Background technique

Usually, the lubricated of high-speed gear box (linear velocity is greater than 25m/s) mainly is to adopt the thin oil cycle forces lubricated, and be lubricated to lubricating point enforcement by the reasonable Arrangement oil feed line in the gear-box, satisfies the needs of gear and bearing lubrication.The lubrication effect key of bearing depend on lubricating structure whether rationally and oil whether clean.For lubricating of sliding selector shaft upper bearing (metal) in the high speed change gear case, have some lubricating structures of application to be at present: lubricant oil enters bearing support by the box house pipeline, have one to adjust packing ring in the bearing support, adjust the packing ring center and be welded with a round steel pipe, round steel pipe leads directly to the sliding selector shaft center hole, adjust and form an oil pocket between packing ring and bearing cover, after pressure oil overflowed center height, the declutch shift shaft center hole of just flowing through sprayed to bearing and implements lubricated.This structure is difficult to satisfy the lubricated needs of declutch shift shaft upper bearing (metal) through facts have proved, often occurs the bearing burnout phenomenon in the operation process, so need be improved this.

The model utility content

The purpose of this utility model, exactly in order to overcome the phenomenon that the sliding selector shaft upper bearing (metal) often burns out in the existing high speed change gear case, propose a kind of new high speed change gear axle box bearing lubricating fitting, thereby this kind high speed change gear case lubricating fitting can guarantee that bearing can obtain sufficient lubricating and avoid it to burn out.

The technical scheme in the invention for solving the technical problem is: a kind of high speed change gear axle box bearing lubricating fitting, comprise the high speed change gear, the high speed change gear is arranged bearing housings on sliding selector shaft by two, the outer ring of two row's bearings is embedded in respectively in the two end axles bearing of high speed change gear, the inner ring of two row's bearings is enclosed within on the sliding selector shaft, and the high speed change gear can rotate around the sliding selector shaft axle center; It is characterized in that: one elongated hole is arranged at the sliding selector shaft center, elongated hole extends to the position of bearings at support high-speed change gear position always, and symmetry is opened two radially small sircle holes on the sliding selector shaft diameter of axle, radially small sircle hole communicates with elongated hole, simultaneously radially small sircle hole communicates with space between high speed change gear two row's bearing shaft, and lubrication pressure oil leads to radially small sircle hole through flows through elongated bore to be implemented to lubricate to bearing.

Be connected to in-line in the sliding selector shaft elongated hole by outlet end; In-line is a Stainless Steel Tube, and in-line is to pick out branch line from total oil inlet pipe to lead to round steel pipe on the end cap, is connected with the sliding selector shaft elongated hole by round steel pipe again; Adopt FERRULETYPE end union elbow to be connected between the round steel pipe of branch line and end cap.

Between high speed change gear two row's bearings, be enclosed within a distance ring is arranged on the sliding selector shaft, distance ring is a bearing inner race location usefulness, and has internal channel one at the radially small sircle hole place of corresponding diameter of axle circumferencial direction, and same symmetry drills through two circular holes so that the lubricant oil ejection on the groove.

Round steel pipe is that to be welded on end cap supercentral, simultaneously, attacks the internal thread that matches with FERRULETYPE end union elbow on the round steel pipe.

Advantage of the present utility model is: by divide the straight-through declutch shift shaft center of branch road elongated hole from total oil inlet pipe, make bearing obtain sufficient more lubricating, guaranteed that it is in good condition under running up, be unlikely to burn out.

Description of drawings

Fig. 1 is a plan view of the present utility model;

Fig. 2 is a partial structurtes schematic representation of the present utility model;

Code name implication among the figure: 1-in-line, 2-sliding selector shaft, 3-bearing, 4-distance ring, 5-high speed change gear, 6-end cap, 7-round steel pipe, 8-declutch shift shaft center elongated hole, 9-radially small sircle holes, 10-total oil inlet pipe, 11-FERRULETYPE end union elbow, 12-internal channel, 13-distance ring circular hole.

Embodiment

Below in conjunction with drawings and Examples the utility model is further specified.

As shown in Figure 1, the utility model is a kind of high speed change gear axle box bearing lubricating fitting, comprise high speed change gear 5, high speed change gear 5 is enclosed within on the sliding selector shaft 2 by two row's bearings 3, the outer ring of two row's bearings 3 is embedded in respectively in the two end axles bearing of high speed change gear 5, the inner ring of two row's bearings 3 is enclosed within on the sliding selector shaft 2, and high speed change gear 5 can rotate around sliding selector shaft 2 axle center; It is characterized in that: a declutch shift shaft center elongated hole 8 is arranged at sliding selector shaft 2 centers, declutch shift shaft center elongated hole 8 extends to always and supports two row's bearings, 3 positions that high speed change gear position is installed, and sliding selector shaft elongated hole 8 end diameter of axle circumferencial direction symmetries opened two radially small sircle hole 9 communicate with elongated hole 8 ends, declutch shift shaft center, simultaneously radially small sircle hole 9 communicates with space between high speed change gear two row's bearing shaft 3, and lubrication pressure oil leads to radially 9 pairs of bearings of small sircle hole 3 through declutch shift shaft center elongated hole 8 to be implemented to lubricate.

Be connected to in-line 1 in sliding selector shaft elongated hole 8 by outlet end; In-line 1 is a Stainless Steel Tube, and in-line 1 is to pick out branch line from total oil inlet pipe 10 to lead to round steel pipe 7 on the end cap 6, is connected with sliding selector shaft elongated hole 8 by round steel pipe 7 again; Adopt FERRULETYPE end union elbow 11 to be connected between the round steel pipe 7 of in-line 1 and end cap 6.

Between high speed change gear two row's bearings 3, being enclosed within has a distance ring 4 on the sliding selector shaft, and distance ring 4 is bearing 3 an inner rings location usefulness, and radially has internal channel one in small sircle hole 9 places in correspondence, and same symmetry drills through two circular holes 13 so that the lubricant oil ejection on the groove.

Round steel pipe 7 is that to be welded on end cap 6 supercentral, simultaneously, attacks the internal thread that matches with FERRULETYPE end union elbow on the round steel pipe 7.

Claims

1. high speed change gear axle box bearing lubricating fitting, comprise the high speed change gear, the high speed change gear is arranged bearing housings on sliding selector shaft by two, the outer ring of two row's bearings is embedded in respectively in the two end axles bearing of high speed change gear, the inner ring of two row's bearings is enclosed within on the sliding selector shaft, and the high speed change gear can rotate around the sliding selector shaft axle center; It is characterized in that: one elongated hole is arranged at the sliding selector shaft center, elongated hole extends to always and supports the two row positions of bearings that high speed change gear position is installed, and two radially small sircle holes have been opened in sliding selector shaft elongated hole end diameter of axle circumferencial direction symmetry, radially small sircle hole communicates with elongated hole, simultaneously radially small sircle hole communicates with space between high speed change gear two row's bearing shaft, and lubrication pressure oil leads to radially small sircle hole through flows through elongated bore to be implemented to lubricate to bearing.

2. high speed change gear axle box bearing lubricating fitting as claimed in claim 1 is characterized in that: be connected to in-line in the sliding selector shaft elongated hole by outlet end; In-line is a Stainless Steel Tube, and in-line is to pick out branch line from total oil inlet pipe to lead to round steel pipe on the end cap, is connected with the sliding selector shaft elongated hole by round steel pipe again; Adopt FERRULETYPE end union elbow to be connected between the round steel pipe of branch line and end cap.

3. high speed change gear axle box bearing lubricating fitting as claimed in claim 1, it is characterized in that: between high speed change gear two row's bearings, be enclosed within a distance ring is arranged on the sliding selector shaft, distance ring is that the bearing inner race location is used, and having internal channel one at the radially small sircle hole place of corresponding diameter of axle circumferencial direction, same symmetry drills through two circular holes so that the lubricant oil ejection on the groove.

4. high speed change gear axle box bearing lubricating fitting as claimed in claim 1 is characterized in that: round steel pipe is that to be welded on end cap supercentral, simultaneously, attacks the internal thread that matches with FERRULETYPE end union elbow on the round steel pipe.