阅读说明：本技术 一种用于主轴端部轴承的自润滑机构 (Self-lubricating mechanism for end bearing of spindle ) 是由 杨美娟 于 2020-06-08 设计创作，主要内容包括：本发明涉及轴承润滑技术领域,且公开了一种用于主轴端部轴承的自润滑机构,包括传动主轴,所述传动主轴外表面的中部固定套装有轴承,所述轴承内壁的一侧设有润滑槽,所述传动主轴内部的一侧开设有储油腔孔。该用于主轴端部轴承的自润滑机构,对于活动卡板外部结构以及密封弹簧的设置,使其在离心力的作用下而打开储油腔与连接槽孔的通道,使得其中的润滑油可以顺利的进入到轴承中,而当传动主轴停止旋转时,在密封弹簧的弹力作用下,使得活动卡板可以向外侧移动而封堵住储油腔与连接槽孔之间的通道,以避免其中的润滑油持续流入到轴承中造成浪费的问题,进而有效地控制了储油腔中润滑油的流量,可控性较高且稳定性较好。(The invention relates to the technical field of bearing lubrication, and discloses a self-lubricating mechanism for a bearing at the end part of a main shaft. This a self-lubricating mechanism for main shaft tip bearing, to movable cardboard exterior structure and sealing spring's setting, make it open the passageway of oil storage chamber and connection slotted hole under the effect of centrifugal force, make lubricating oil wherein enter into the bearing smoothly, and when transmission main shaft stop rotating, under sealing spring's elastic force, make movable cardboard can move to the outside and block up the passageway between oil storage chamber and the connection slotted hole, in order to avoid lubricating oil wherein to continuously flow into the bearing and cause extravagant problem, and then the flow of lubricating oil in the oil storage chamber has been controlled effectively, the controllability is higher and stability is better.)

1. The utility model provides a self-lubricating mechanism for main shaft tip bearing, includes transmission main shaft (1), the fixed cover in middle part of transmission main shaft (1) surface is equipped with bearing (2), its characterized in that: one side of the inner wall of the bearing (2) is provided with a lubricating groove (3), the middle part of the outer surface of the transmission main shaft (1) is provided with a connecting slotted hole (4), one side of the inner part of the transmission main shaft (1) is provided with an oil storage cavity (5), one side of the outer surface of the transmission main shaft (1) is provided with an oil injection slotted hole (6) communicated with the oil storage cavity (5), the inner wall of the oil injection slotted hole (6) is in threaded connection with a sealing bolt (7), one end of the transmission main shaft (1) is provided with a fixed clamping groove (8), the inner wall of the fixed clamping groove (8) is fixedly connected with a sealing clamping block (9) through a countersunk head bolt, one side of the inner cavity of the oil storage cavity (5) is fixedly provided with a limiting strut (10), the other end of the limiting strut (10) is movably sleeved with the inner part, and a sealing spring (12) is movably sleeved between one side of the outer surface of the limiting support (10) and one side of the inner cavity of the movable clamping plate (11) and the oil storage cavity (5).

2. A self-lubricating mechanism for a spindle end bearing according to claim 1, characterised in that: the central axis of the connecting slotted hole (4) on the transmission main shaft (1) is positioned on the central plane of the lubricating groove (3) on the bearing (2), and the width of the lubricating groove (3) is the same as the inner diameter of the connecting slotted hole (4).

3. A self-lubricating mechanism for a spindle end bearing according to claim 1, characterised in that: the top of the oil storage cavity (5) is provided with a conical cavity, the bottom of the oil storage cavity is provided with a combined structure of cylindrical cavities, and the small inner diameter of the conical structure is outward while the large inner diameter is inward.

4. A self-lubricating mechanism for a spindle end bearing according to claim 1, characterised in that: one end of the movable clamping plate (11) is of a cone structure, the other end of the movable clamping plate is of a cylinder structure, and the inclined angles of the inner walls of the inclined angle oil storage cavities (5) of the bus bars are the same.

Technical Field

The invention relates to the technical field of bearing lubrication, in particular to a self-lubricating mechanism for a bearing at the end part of a main shaft.

Background

The bearing is used as an important part in mechanical equipment, mainly for supporting a mechanical rotating body, reducing the friction coefficient of the rotating body in a motion state and ensuring the rotation precision of the rotating body, and good lubricating measures for the bearing can effectively avoid the direct contact between a bearing raceway and the surface of a rolling body so as to reduce the friction and the abrasion in the bearing, prolong the service life of the bearing, prevent the phenomenon of rusting and corrosion in the bearing due to the invasion of foreign matters and further effectively improve the working performance of the bearing.

At present, the lubrication for the bearing is mainly divided into grease lubrication and oil lubrication, wherein the grease lubrication has a large friction torque relative to the oil lubrication, the applicability to the high-speed bearing is low, the cooling performance of the grease lubrication is poor, the phenomenon of overhigh bearing temperature can be caused in the process of supporting the rotating body for a long time, and the oil lubrication can well avoid the problems.

Disclosure of Invention

Technical problem to be solved

The invention provides a self-lubricating mechanism for a bearing at the end part of a main shaft, which has the advantages of self-supplying lubricating oil, no need of an additional oil supply device, simple operation and convenient use and effectively reduced workload of bearing maintenance, and solves the problems that the existing oil lubricating technology for the bearing needs to be provided with a complex oil supply device outside the bearing, so that the lubricating cost of the bearing is increased, the operation and the use of the oil lubricating mechanism are more troublesome than grease lubrication, and the workload of the bearing maintenance is greatly increased compared with the grease lubrication mode.

(II) technical scheme

The invention provides the following technical scheme: a self-lubricating mechanism for a bearing at the end part of a main shaft comprises a transmission main shaft, wherein a bearing is fixedly sleeved in the middle of the outer surface of the transmission main shaft, a lubricating groove is formed in one side of the inner wall of the bearing, and the middle part of the outer surface of the transmission main shaft is provided with a connecting slotted hole, one side of the inner part of the transmission main shaft is provided with an oil storage cavity, one side of the outer surface of the transmission main shaft is provided with an oil injection slotted hole communicated with the oil storage cavity, and the inner wall of the oiling groove hole is in threaded connection with a sealing bolt, one end of the transmission main shaft is provided with a fixed clamping groove, and the inner wall of the fixed clamping groove is fixedly connected with a sealing clamping block through a countersunk head bolt, one side of the inner cavity of the oil storage cavity is fixedly provided with a limiting pillar, the other end of the limit pillar is movably sleeved with the inside of the sealing fixture block, the outer surface of the limit pillar is movably sleeved with a movable clamping plate, and a sealing spring is movably sleeved between one side of the outer surface of the limiting support and one side of the inner cavity of the oil storage cavity and positioned on the movable clamping plate.

Preferably, the central axis of the connecting slotted hole in the transmission main shaft is positioned on the central plane of the lubricating groove in the bearing, and the width of the lubricating groove is the same as the inner diameter of the connecting slotted hole.

Preferably, the top of the oil storage cavity is provided with a conical cavity, the bottom of the oil storage cavity is provided with a combined structure of cylindrical cavities, and the small inner diameter of the conical structure is outward while the large inner diameter is inward.

Preferably, one end of the movable clamping plate is of a cone structure, the other end of the movable clamping plate is of a cylinder structure, and the inclination angles of the inner walls of the oil storage cavities of the generatrices of the movable clamping plate are the same.

(III) advantageous effects

The invention has the following beneficial effects:

1. this a self-lubricating mechanism for main shaft tip bearing, to the setting of oil storage chamber and inner structure, can store lubricating oil in the transmission main shaft, make lubricating oil wherein under the effect of the centrifugal force that the transmission main shaft high-speed rotation produced, can be along the inner wall of oil storage chamber constantly to the direction of connecting the slotted hole flow, and then flow into the bearing and lubricate the operation to it through connecting slotted hole and lubrication groove, compare with current bearing oil lubrication technology, utilize the produced stable centrifugal force of transmission main shaft to carry out the lubricated operation of fuel feeding to the bearing, and need not dispose other oil supply unit, simple structure and need not artificial operation, reduce its cost to bearing oil lubrication effectively, reduced the work load of its bearing maintenance simultaneously.

2. This a self-lubricating mechanism for main shaft tip bearing, to movable cardboard exterior structure and sealing spring's setting, make it open the passageway of oil storage chamber and connection slotted hole under the effect of centrifugal force, make lubricating oil wherein enter into the bearing smoothly, and when transmission main shaft stop rotating, under sealing spring's elastic force, make movable cardboard can move to the outside and block up the passageway between oil storage chamber and the connection slotted hole, in order to avoid lubricating oil wherein to continuously flow into the bearing and cause extravagant problem, and then the flow of lubricating oil in the oil storage chamber has been controlled effectively, the controllability is higher and stability is better.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the transmission spindle and its upper structure according to the present invention;

FIG. 3 is a schematic view of a movable clamping plate of the present invention.

In the figure: 1. a transmission main shaft; 2. a bearing; 3. a lubrication groove; 4. connecting the slotted holes; 5. an oil storage chamber; 6. oiling slotted holes; 7. a seal bolt; 8. fixing the clamping groove; 9. sealing the clamping block; 10. a limiting strut; 11. a movable clamping plate; 12. and sealing the spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, a self-lubricating mechanism for a bearing at the end of a spindle comprises a transmission spindle 1, a bearing 2 is fixedly sleeved at the middle part of the outer surface of the transmission spindle 1, a lubricating groove 3 is arranged at one side of the inner wall of the bearing 2, a connecting groove hole 4 is arranged at the middle part of the outer surface of the transmission spindle 1, an oil storage chamber 5 is arranged at one side of the inner part of the transmission spindle 1, an oil filling groove hole 6 communicated with the oil storage chamber 5 is arranged at one side of the outer surface of the transmission spindle 1, a sealing bolt 7 is connected to the inner wall of the oil filling groove hole 6 in a threaded manner, a fixed clamping groove 8 is arranged at one end of the transmission spindle 1, a sealing clamping block 9 is fixedly connected to the inner wall of the fixed clamping groove 8 through a countersunk head bolt, a limit pillar 10 is fixedly installed at one side of the, a sealing spring 12 is movably sleeved between the movable clamping plate 11 and one side of the inner cavity of the oil storage cavity 5 on one side of the outer surface of the limiting support 10.

Wherein, to the setting of oiling slotted hole 6 and sealing bolt 7, can be regular inject lubricating oil into oil storage chamber 5 into, and need not open sealing fixture block 9 and come and go to the oil storage chamber 5 and inject lubricating oil for this self-lubricating mechanism's operation is comparatively simple and convenient, and through the setting of oil storage chamber 5, can store lubricating oil in transmission main shaft 1, and no longer need dispose other oil supply unit.

In the technical scheme, the central axis of the connecting slotted hole 4 on the transmission main shaft 1 is positioned on the central plane of the lubricating groove 3 on the bearing 2, and the width of the lubricating groove 3 is the same as the inner diameter of the connecting slotted hole 4.

Wherein, to the restriction of relative position between lubrication groove 3 and the connection slotted hole 4, can be effective intercommunication oil storage chamber 5 and bearing 2 for lubricating oil in oil storage chamber 5 can stably enter into bearing 2 effectively, so that carry out lubricated operation to it.

In the technical scheme, the top of the oil storage cavity 5 is set to be a conical cavity, the bottom of the oil storage cavity is provided with a combined structure of cylindrical cavities, and the small inner diameter of the conical structure is outward while the large inner diameter is inward.

Wherein, to the setting of the internal structure of the oil storage chamber 5, make lubricating oil therein under the effect of centrifugal force that the high-speed rotation of the transmission main shaft 1 produced, can be along the inner wall of the oil storage chamber 5 constantly to the direction of connecting the slotted hole 4 and flow, and then enter into the bearing 2 and lubricate the operation to it through connecting slotted hole 4 and lubrication groove 3, and do not need other oil supply unit, in order to lubricate the operation to the bearing 2, simple structure and need not artificial operation, the work load of its bearing maintenance has been reduced effectively.

In this technical scheme, the one end of activity cardboard 11 is established to the cone structure, and its other end is established to the cylinder structure, and the inclination of the inclination oil storage chamber 5 inner wall of its generating line is the same.

Wherein, to the setting of movable cardboard 11 exterior structure and sealing spring 12, make it open the passageway of oil storage chamber 5 and connection slotted hole 4 under the effect of centrifugal force, make lubricating oil wherein enter into bearing 2 smoothly, and when transmission main shaft 1 stopped rotating, under sealing spring 12's elasticity effect, make movable cardboard 11 can move to the outside and block up the passageway between oil storage chamber 5 and the connection slotted hole 4, in order to avoid lubricating oil wherein to continuously flow into bearing 2 and cause extravagant problem, and then the flow of lubricating oil in the oil storage chamber 5 has been controlled effectively.

The use method and the working principle of the embodiment are as follows:

firstly, a transmission main shaft 1 and a bearing 2 are fixedly arranged on equipment needing transmission, then a sealing bolt 7 is rotated and taken out, a certain amount of lubricating oil is injected into an oil storage cavity 5, then the sealing bolt 7 is arranged, when the transmission main shaft 1 stops rotating, under the action of the elastic force of a sealing spring 12, a movable clamping plate 11 is pushed to move outwards along the direction of a limiting support post 10 to seal a channel between the oil storage cavity 5 and a connecting slotted hole 4 so as to prevent the lubricating oil therein from leaking, and when the transmission main shaft 1 rotates at a high speed, under the action of centrifugal force, the movable clamping plate 11 moves inwards along the inclined track of the oil storage cavity 5 to compress the sealing spring 12, so that the channel between the oil storage cavity 5 and the connecting slotted hole 4 is opened, and meanwhile, the lubricating oil in the oil storage cavity 5 moves inwards along the inclined inner wall of the oil storage cavity 5 under the action of the centrifugal force, and the lubricating oil flows into the bearing 2 through the connecting slotted hole 4 and the lubricating groove 3 to continuously lubricate the bearing, and when the transmission main shaft 1 stops again, the steps are repeated, so that the lubricating mechanism of the bearing at the end part of the main shaft can only supply oil to the bearing 2 when the transmission main shaft 1 rotates.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.