CN110805619A

CN110805619A - Gear box driving gear shaft bearing lubricating structure for urban rail transit vehicle

Info

Publication number: CN110805619A
Application number: CN201911045024.8A
Authority: CN
Inventors: 丁金玲; 魏秀琴; 师光洲
Original assignee: Liuzhou Railway Vocational Technical College
Current assignee: Liuzhou Railway Vocational Technical College
Priority date: 2019-10-30
Filing date: 2019-10-30
Publication date: 2020-02-18
Anticipated expiration: 2039-10-30
Also published as: CN110805619B

Abstract

The invention discloses a bearing lubricating structure of a driving gear shaft of a gear box for an urban rail transit vehicle, which comprises a bearing seat, an inlet, a rolling body, an outlet, an inner ring, an outer ring, a positioning end and a retaining frame, wherein the bearing seat is provided with the inner ring and the outer ring, a roller body is fixed between the inner ring and the outer ring, the position dividing end is respectively provided with a port matched with the inlet and the outlet, the inlet and the outlet are communicated in the roller body through the connection part of the inner ring and the outer ring, the left end and the right end are distributed in a Z shape, the outer surfaces of the inner ring and the outer ring are wrapped by the holding frame, a single-pass pressure cavity, an infusion opening and a pipe orifice are arranged at the communication part of the inlet and the branch end, the inlet can realize quantification when adding lubricating grease, the infusion amount is limited by the fullness degree of the input pipeline, the infusion port exceeding the limited infusion amount is closed under the action of the rubber layer of the single through pressure cavity, the adding of the lubricating grease is stopped, and the condition that the lubricating grease is added too much in the bearing can be effectively avoided.

Description

Gear box driving gear shaft bearing lubricating structure for urban rail transit vehicle

Technical Field

The invention relates to the field of design of gear boxes for urban rail transit vehicles, in particular to a bearing lubricating structure for driving gear shafts of the gear boxes for the urban rail transit vehicles.

Background

At present, the science and technology of China are continuously developed, the society is continuously improved, a subway becomes one of main vehicles in cities, great convenience is brought to people going out, lubricating grease is used as a lubricating medium for lubricating a gear box bearing for an urban rail transit vehicle, mainly because the lubricating grease has small liquidity and is not easy to careless and leak, the formed oil film has good strength and is more beneficial to sealing use of the bearing, but simultaneously, the lubricating grease has larger friction torque and poorer cooling performance in a grease lubricating mode, if the lubricating grease is excessively added in the bearing, the creep of the inner ring of the bearing is easily caused by the overheating stirring of the lubricating grease.

Disclosure of Invention

The invention aims to provide a bearing lubricating structure of a driving gear shaft of a gear box for an urban rail transit vehicle, which is used for solving the technical problem that the creep of an inner ring of a bearing is easily caused by the overheating of stirring of lubricating grease if the lubricating grease is added into the bearing too much.

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a city rail is gear box driving gear axle bearing lubricating structure for transportation vehicles, its characterized in that: the bearing seat is provided with the inner ring and the outer ring, the rolling body is fixed between the inner ring and the outer ring, the position dividing end is respectively provided with a port matched with the inlet and the outlet, the inlet and the outlet penetrate through the joint of the inner ring and the outer ring to be communicated in the rolling body, the left end and the right end of the inlet are distributed in a zigzag manner, and the outer surfaces of the inner ring and the outer ring are wrapped by the retaining frame.

Preferably, the outlet is provided with two outlets which are connected by an output pipeline.

Preferably, the two branch ends are butted by one input pipeline.

Preferably, the dividing end is provided with a flow control port at the joint with the inlet, the flow control port is internally provided with two single-through pressure cavities, two infusion ports and two pipe orifices, the two single-through pressure cavities are vertically communicated with the pipe orifices, and the infusion ports are attached between the two single-through pressure cavities.

Preferably, the closed end of the single pressure cavity and the inlet are fixed to form a V shape.

Preferably, one end of the single pressure cavity close to the infusion port is a rubber layer, the two outer sides of the single pressure cavity are stainless steel layers, and the infusion port can be extruded due to deformation of the rubber layer when the single pressure cavity is filled with substances, so that the passive closing of the infusion port is indirectly realized.

In the present invention, it is preferable that a cooling loop is provided between the holding frame and the inner and outer rings, and a cooling liquid inlet is provided in the cooling loop.

Preferably, the coolant inlet port is connected to one end opening of the inner ring and the outer ring, and is driven to open and close through the infusion port.

Preferably, the cooling liquid inlet is provided with an insert, through holes, a liquid collecting cavity and a pressure plate, two through holes are arranged in the liquid collecting cavity and horizontally fixed to be opposite to the insert, the pressure plate is connected with the infusion hole, and the pressure plate is fixed to the outer end of the liquid collecting cavity.

Preferably, the insertion piece is provided with arc-shaped projections on both sides, and the arc-shaped projections are inserted and matched with the through holes.

Preferably, the two inner sides of the through opening are provided with a blocking piece, the blocking piece does not discharge water from the through opening under the water pressure, only the arc-shaped convex block is inserted, and the blocking piece opens the through opening to discharge water, so that the automatic opening and closing of the cooling liquid inlet is realized.

Preferably, the infusion port is made of a flexible material, so that soft compression can be realized.

Compared with the prior art, the invention has the following beneficial effects:

1. the communicated part of the inlet and the branch end is provided with a single pressure cavity, an infusion port and a pipe orifice, so that the inlet can realize quantification when lubricating grease is added, the infusion amount is limited by the fullness degree of an input pipeline, the infusion port exceeding the limited amount is closed under the action of a rubber layer of the single pressure cavity, the lubricating grease is stopped being added, and the condition that the lubricating grease is added too much in a bearing can be effectively avoided;

2. the inner side surface of the single pressure cavity is only attached to two sides of the infusion port and is designed as a rubber layer, and the other three surfaces are designed as rigid surfaces, so that the transverse deformation of the infusion port can be realized by single-side extrusion to provide a driving force for the cooling inlet;

3. the outer surfaces of the inner ring and the outer ring are provided with the holding frames with cooling benefits, and the cooling liquid introducing ports are conducted and then circularly act on the inner ring and the outer ring, so that the lubricating grease is stirred and overheated to achieve overall temperature reduction;

4. the conduction of the cooling liquid introducing port is realized by matching the plug-in piece with the through hole, the liquid collecting cavity and the infusion port, when the lubricating grease is fully added, the cooling liquid can be discharged only when the through hole of the liquid collecting cavity is inserted and embedded with the plug-in piece under the action of the infusion port, and the waste of the cooling liquid caused by the fact that the lubricating grease is not overheated when a small amount of lubricating grease is added is avoided.

Drawings

FIG. 1 is a schematic structural diagram of a bearing lubricating structure of a driving gear shaft of a gear box for an urban rail transit vehicle.

FIG. 2 is a schematic structural diagram of a front cross-sectional view of a bearing lubricating structure of a driving gear shaft of a gearbox for an urban rail transit vehicle.

FIG. 3 is a schematic diagram of a matching structure of the bit-splitting terminal according to the present invention.

FIG. 4 is a schematic diagram of an internal structure of a port of the present invention.

FIG. 5 is a schematic view of the internal structure of the holding frame of the present invention.

FIG. 6 is a schematic view showing the structure of a coolant inlet port according to the present invention.

FIG. 7 is a schematic view of the structure of a coolant inlet according to the present invention.

In the figure: the device comprises a bearing seat-1, an inlet-2, a roller body-3, an outlet-4, an inner ring-5, an outer ring-6, a positioning end-7, a holding frame-8, an output pipeline-41, an input pipeline-71, a single pressure cavity-a, an infusion port-b, a pipe orifice-c, a cooling loop-9, a cooling liquid inlet-91, an insert-1 a, a through port-1 b, a liquid collecting cavity-1 c and a pressure plate-1 d.

Detailed Description

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on or indirectly connected to the other element, and when an element is referred to as being "connected to" the other element, it can be directly connected to or indirectly connected to the other element.

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

Examples

As shown in fig. 1-7, the invention provides a gear box driving gear shaft bearing lubricating structure for an urban rail transit vehicle, which comprises a bearing seat 1, an inlet 2, a rolling body 3, an outlet 4, an inner ring 5, an outer ring 6, a dividing end 7 and a holding frame 8, wherein the bearing seat 1 is provided with the inner ring 5 and the outer ring 6, the rolling body 3 is fixed between the inner ring 5 and the outer ring 6, the dividing end 7 is respectively provided with a port matched with the inlet 2 and the outlet 4, the inlet 2 and the outlet 4 are communicated in the rolling body 3 through the connection part of the inner ring 5 and the outer ring 6, the left end and the right end are distributed in a Z shape, the holding frame 8 is wrapped on the outer surfaces of the inner ring 5 and the outer ring 6, the two outlets 4 are connected by an output pipeline 41, the two dividing ends 7 are butted by an input pipeline 71, the connection part of the dividing end 7 and the inlet 2 is provided with a flow control port, the flow control port is internally provided with a single through pressure cavity a, an infusion port b and a pipe orifice c, the number of the single through pressure cavities a is two, the single through pressure cavities a are vertically communicated with the pipe orifice c, the infusion port b is attached between the two single through pressure cavities a, the closed end of the single through pressure cavity a is fixed with the inlet 2 to form a V shape, one end, close to the infusion port b, of the single through pressure cavity a is a rubber layer, the two outer sides of the single through pressure cavity a are stainless steel layers, the single through pressure cavity a can extrude the infusion port b due to deformation of the rubber layer when filled with substances, so that the infusion port b is indirectly closed, a cooling loop 9 is arranged between the holding frame 8 and the inner ring 5 and the outer ring 6, a cooling liquid inlet 91 is formed in the cooling loop 9, the cooling liquid inlet 91 is connected with one end opening of the inner ring 5 and the outer ring 6 and driven to open and close through the infusion port b, and the cooling liquid inlet 91 is provided, Opening 1b, collecting chamber 1c, pressure disk 1d, it is relative with plug-in components 1a level is fixed to be equipped with two openings 1b in the collecting chamber 1c, pressure disk 1d is connected with infusion mouth b, pressure disk 1d is fixed with collecting chamber 1c outer end, plug-in components 1 a's two sides are equipped with the arc lug of inserting the cooperation in opening 1b, opening 1 b's two inboards are equipped with a separation blade, and this separation blade is under water pressure, and opening 1b does not go out water, only cooperates the arc lug to insert, and opening 1b goes out water is opened to the separation blade, realizes that coolant liquid introducing port 91's automation is opened and is closed, infusion mouth b adopts flexible material to make, can realize soft compression.

The implementation of the gear box driving gear shaft bearing lubricating structure for the urban rail transit vehicle provided by the invention is described in detail as follows:

the bearing lubrication mode adopted by the invention is grease lubrication, wherein grease is added into the inner ring 5 and the outer ring 6 through the inlet 2 to realize the comprehensive lubrication of the roller body 3, then waste grease is discharged through the outlet 4, and excessive addition often occurs due to a visual blind area in the addition process, so that the adding end of the inlet 2 is provided with a single-pass pressure cavity a, an infusion port b and a pipe orifice c, the grease can be added into the pipe orifice c through the infusion port b and finally is infused into the roller body 3 through the input pipeline 71, during the addition, the input pipeline 71 is easy to saturate due to poor fluidity of the grease, at the moment, the grease in the pipe orifice c overflows into the single-pass pressure cavity a, the grease in the single-pass pressure cavity a is continuously increased, and due to the design of the rubber layer adopted at the position of the inner side joint infusion port b, the rubber layer is continuously deformed until the infusion port b is closed, the addition of the lubricating grease is stopped, so that excessive addition of the lubricating grease can be effectively avoided, the volume is reduced after the lubricating grease in the single pressure cavity a is utilized, the rubber layer is reset, and the filling port b is opened again, so that the supply and demand balance is realized;

and when infusion mouth b is closed, because infusion mouth b is extruded, the front is horizontal extrusion part, pressure disk 1d for infusion mouth b connects takes place horizontal displacement, and collection liquid chamber 1c is pushed by the level, and through-hole 1b is inserted with plug-in components 1a and is inlayed the cooperation and be in the same place, and the inside coolant liquid of collection liquid chamber 1c discharges to inner circle 5 and outer lane 6 surface to reduce because the overheated temperature rise condition of inner circle 5 and outer lane 6 that causes of grease stirring, in order to avoid inner circle 5 and outer lane 6 to take place the creep.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a city rail is gear box driving gear axle bearing lubricating structure for transportation vehicles, its structure includes bearing frame (1), entry (2), rolls body (3), export (4), inner circle (5), outer lane (6), branch position end (7), keeps frame (8), its characterized in that:

the bearing seat is characterized in that an inner ring (5) and an outer ring (6) are arranged on the bearing seat (1), a rolling body (3) is fixed between the inner ring (5) and the outer ring (6), ports matched with the inlet (2) and the outlet (4) are respectively arranged at the position of the dividing end (7), the inlet (2) and the outlet (4) penetrate through the connection part of the inner ring (5) and the outer ring (6) to be communicated in the rolling body (3), the left end and the right end of the inner ring and the outer ring are distributed in a zigzag mode, and the outer surfaces of the inner ring (5) and the outer ring (6) are wrapped by the retaining frame (.

2. The urban rail transit vehicle gearbox driving gear shaft bearing lubricating structure as claimed in claim 1, wherein: two outlets (4) are arranged and are connected through an output pipeline (41).

3. The urban rail transit vehicle gearbox driving gear shaft bearing lubricating structure as claimed in claim 1, wherein: the two indexing ends (7) are butted by an input pipeline (71).

4. The drive gear shaft bearing lubricating structure of the gear box for the urban rail transit vehicle according to claim 1 or 3, characterized in that: the junction of branch position end (7) and entry (2) is equipped with accuse and flows the mouth, accuse flow mouthful inside by single logical pressure chamber (a), infuse mouth (b), mouth of pipe (c), single logical pressure chamber (a) is equipped with two, and is vertical logical in mouth of pipe (c) two it has infuse mouth (b) to laminate between single logical pressure chamber (a).

5. The urban rail transit vehicle gearbox driving gear shaft bearing lubricating structure according to claim 4, characterized in that: the closed end of the single pressure cavity (a) and the inlet (2) are fixed to form a V shape.

6. The urban rail transit vehicle gearbox driving gear shaft bearing lubricating structure according to claim 5, characterized in that: one end of the single pressure cavity (a) close to the infusion port (b) is a rubber layer, and two outer sides of the single pressure cavity are stainless steel layers.

7. The urban rail transit vehicle gearbox driving gear shaft bearing lubricating structure as claimed in claim 1, wherein: and a cooling loop (9) is arranged between the holding frame (8) and the inner ring (5) and the outer ring (6), and a cooling liquid introducing port (91) is formed in the cooling loop (9).

8. The urban rail transit vehicle gearbox driving gear shaft bearing lubricating structure according to claim 7, characterized in that: the cooling liquid introducing port (91) is connected with one end openings of the inner ring (5) and the outer ring (6) and is driven to open and close through the filling port (b).

9. The urban rail transit vehicle gearbox driving gear shaft bearing lubricating structure according to claim 8, characterized in that: the cooling liquid introducing port (91) is provided with an insert (1 a), a through hole (1 b), a liquid collecting cavity (1 c) and a pressure plate (1 d), two through holes (1 b) are arranged in the liquid collecting cavity (1 c) and are horizontally fixed relative to the insert (1 a), the pressure plate (1 d) is connected with a perfusion hole (b), and the pressure plate (1 d) is fixed with the outer end of the liquid collecting cavity (1 c).

10. The urban rail transit vehicle gearbox driving gear shaft bearing lubricating structure according to claim 9, characterized in that: arc-shaped convex blocks which are inserted and embedded in the through holes (1 b) are arranged on two sides of the plug-in piece (1 a).