阅读说明：本技术 一种城轨交通车辆用齿轮箱主动齿轮轴轴承润滑结构 (Gear box driving gear shaft bearing lubricating structure for urban rail transit vehicle ) 是由 丁金玲 魏秀琴 师光洲 于 2019-10-30 设计创作，主要内容包括：本发明公开了一种城轨交通车辆用齿轮箱主动齿轮轴轴承润滑结构,其结构包括轴承座、入口、滚体、出口、内圈、外圈、分位端、保持框,所述轴承座上设有内圈与外圈,在内圈与外圈之间固定有滚体,所述分位端分别开设有配合于入口以及出口的端口,所述入口与出口透过内圈与外圈的连接处通于滚体内,且左右两端呈z字形分布,所述保持框包裹在内圈与外圈外表面,入口与分位端连通处设置有单通压腔、灌输口与管口,使得入口在在加入润滑脂时可实现定量,灌输量以输入管道饱满程度为限,超过该限量灌输口在单通压腔的橡胶层作用下被闭合,停止添加润滑脂,可有效避免轴承中润滑脂添加过多的情况。(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.)

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).

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.