CN211853479U - Rotor shaft lubricating system and rotary machine - Google Patents

Abstract

The utility model provides a rotor shaft lubricating system, rotor shaft lubricating system include box, pivot, be located the box wear-resisting cover and the oil slinger, and wear-resisting cover is overlapped in the pivot, has first connecting portion on the wear-resisting cover, has the second connecting portion in the pivot, and first connecting portion are connected with the second connecting portion to fix wear-resisting cover in the pivot. The utility model provides a rotor shaft lubricating system does not need extra part to fix when fixed wear-resisting cover to reduce rotor shafting spare part quantity, also reduced assembly work load.

Description

Rotor shaft lubricating system and rotary machine

Technical Field

The utility model relates to a rotating machinery technical field especially relates to a rotor shaft lubricating system and rotating machinery.

Background

Oil slinger lubrication is one of the commonly used lubrication methods for rotary machines, in which an oil slinger is suspended on a rotating shaft, the inner surface of the upper end is in contact with the surface of the rotating shaft, and the lower end is immersed in lubricating oil. After the rotary machine starts to work, the rotating shaft rotates, the oil slinger can rotate around the center of the oil slinger under the condition that the inner surface of the upper end is always in contact with the rotating shaft, and lubricating oil in contact with the lower end can be conveyed to the rotating shaft by the oil slinger due to the adhesion effect to lubricate components on the rotating shaft and take away heat generated by the components on the rotating shaft. The relative sliding between the contact surfaces of the slinger and the rotating shaft wears the rotating shaft. An oil slinger wear-resistant sleeve is arranged on the rotating shaft, and an oil slinger is connected to the wear-resistant sleeve to prevent the oil slinger from wearing the rotating shaft.

In the prior art, when the wear-resistant sleeve is fixed, a thread is arranged on the rotating shaft, and a nut is connected to the outer thread so as to fix the wear-resistant sleeve between a part on the rotating shaft and the nut. In order to prevent the wear-resistant sleeve from loosening, at least two nuts or nuts and locking washers are usually used to fix the wear-resistant sleeve.

However, in the prior art, the number of parts for fixing the wear-resistant sleeve is large, and the assembly workload is large.

SUMMERY OF THE UTILITY MODEL

The utility model provides a rotor shaft lubricating system and rotating machinery to solve the used spare part quantity of prior art when fixed wear-resisting cover part more, problem that assembly work load is big.

The utility model provides a rotor shaft lubricating system, which comprises a box body, a rotating shaft, a wear-resistant sleeve and an oil slinger, wherein the wear-resistant sleeve and the oil slinger are positioned in the box body;

the rotating shaft part is inserted into the box body, an oil storage tank is arranged in the box body, the oil slinger is sleeved on the wear-resistant sleeve, and the oil slinger part is positioned in the oil storage tank;

the wear-resistant sleeve is sleeved on the rotating shaft, a first connecting portion is arranged on the wear-resistant sleeve, a second connecting portion is arranged on the rotating shaft, and the first connecting portion is connected with the second connecting portion.

The utility model discloses an in the concrete implementation mode, first connecting portion are the draw-in groove, the second connecting portion be with draw-in groove assorted buckle, perhaps, first connecting portion are the buckle, the second connecting portion be with buckle assorted draw-in groove.

In a particular embodiment of the present invention, the first connecting portion is an internal thread, and the second connecting portion is an external thread matched with the internal thread.

In a specific embodiment of the present invention, the rotation direction of the internal thread is opposite to the rotation direction of the rotating shaft.

In a particular embodiment of the present invention, the outer side wall of the wear-resistant sleeve has an annular groove, and the oil slinger is located in the annular groove.

In a specific embodiment of the present invention, the rotating shaft includes a first shaft body, a second shaft body and a third shaft body which are connected in sequence, and the diameters of the first shaft body, the second shaft body and the third shaft body are reduced in sequence;

the bearing bush is sleeved on the second shaft body, and the bearing bush is abutted between the first shaft body and the wear-resistant sleeve.

The utility model discloses an in the concrete implementation mode, the second connecting portion are located the lateral wall of third axis body, wear-resisting first linkage segment and the second linkage segment that has interconnect of cover, the internal diameter of first linkage segment is greater than the internal diameter of second linkage segment, first linkage segment is located on the second axis body, first connecting portion are located on the second linkage segment.

In a specific embodiment of the present invention, the wear-resistant sleeve faces the one end of the bearing bush, the extension portion faces the outer side of the wear-resistant sleeve, and the extension portion abuts against the outer side wall of the bearing inner ring.

The utility model discloses an among the specific embodiment, wear-resisting sheathe in has two at least dismouting grooves, the dismouting trench is located wear-resisting sheathe's lateral wall, perhaps the dismouting trench is located wear-resisting sheathe orientation the tip of third axis body.

The utility model also provides a rotary machine, which comprises a rotary machine body, a driving piece connected with the rotary machine body and any one of the rotor shaft lubricating systems in the above specific embodiments;

the driving piece is connected with the rotating shaft and used for driving the rotating shaft to rotate.

The utility model provides a rotor shaft lubricating system and rotating machinery, rotor shaft lubricating system sets up first connecting portion through sheatheeing in wear-resisting, set up the second connecting portion in the pivot, fix wear-resisting cover in the pivot through first connecting portion and second connecting portion, wherein first connecting portion set up sheatheeing in wear-resisting, the second connecting portion set up in the pivot, do not need extra part to fix when fixed wear-resisting cover, thereby rotor shafting spare part quantity has been reduced, the assembly work volume has also been reduced simultaneously.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural diagram of a rotor shaft lubrication system according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a wear-resistant sleeve and a rotating shaft in a rotor shaft lubrication system provided by an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a rotating shaft in a rotor shaft lubrication system according to an embodiment of the present invention;

fig. 4 is a schematic view of a first structure of a wear-resistant sleeve in a rotor shaft lubrication system according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a second structure of a wear-resistant sleeve in a rotor shaft lubrication system according to an embodiment of the present invention;

FIG. 6 is a top view of FIG. 5;

fig. 7 is a bottom view of fig. 5.

Description of reference numerals:

10-a box body;

20-a rotating shaft;

201-a first shaft body;

202-a second shaft;

203-third shaft body;

21-a second connection;

211-fastening;

212-external threads;

22-bearing bush;

23-a bearing;

30-wear-resistant sleeve;

301-a first connection segment;

302-a second connection segment;

31-a first connection;

311-card slot;

312-internal thread;

32-an annular groove;

33-an extension;

34-a disassembly groove;

40-oil slinger.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The prior art is through setting up the screw thread in the pivot, and coupling nut on the external screw thread to fix wear-resisting cover between epaxial part of pivot and nut, in order to prevent that wear-resisting cover from producing not hard up, adopt two at least nuts or nut collocation lock washer fixed wear-resisting cover usually, the spare part quantity of fixed wear-resisting cover is more, and assembly work volume is big.

The embodiment of the utility model provides a pair of rotor shaft lubricating system and rotating machinery through the connected mode between wear-resisting cover of change and the pivot, has reduced rotor shaft system spare part quantity, has also reduced assembly work load simultaneously.

The utility model provides a pair of rotor shaft lubricating system and rotating machinery can be applied to all kinds of rotating machinery, including steam turbine, gas turbine, fan, pump, hydraulic turbine, generator etc.

Fig. 1 is the embodiment of the utility model provides a structural schematic diagram of rotor shaft lubricating system, fig. 2 is the utility model provides a structural schematic diagram of wear-resisting cover and pivot among the rotor shaft lubricating system, fig. 3 is the utility model provides a structural schematic diagram of pivot among the rotor shaft lubricating system, fig. 4 is the utility model provides a first structural schematic diagram of wear-resisting cover among the rotor shaft lubricating system, fig. 5 is the utility model provides a second structural schematic diagram of wear-resisting cover among the rotor shaft lubricating system. As shown in fig. 1 and fig. 2, the present embodiment provides a rotor shaft lubrication system, which includes a box 10, a rotating shaft 20, a wear-resistant sleeve 30 and an oil slinger 40 located in the box; the rotating shaft 20 is partially inserted into the box body 10, an oil storage tank 101 is arranged in the box body 10, the oil slinger 40 is sleeved on the wear-resistant sleeve 30, the oil slinger 40 is partially positioned in the oil storage tank 101, the rotating shaft 20 is partially inserted into the box body 10 during installation, the wear-resistant sleeve 20 is sleeved on the rotating shaft 20, the oil slinger 40 is sleeved on the wear-resistant sleeve 20, and the lower end portion of the oil slinger 40 is immersed into the oil storage tank.

The oil storage tank 101 is filled with lubricating oil, the oil slinger 40 is hung on the wear-resistant sleeve 30 in a static state, meanwhile, the lower end part of the oil slinger 40 is soaked in the lubricating oil in the oil storage tank 101, the horizontal plane of the lubricating oil in the oil storage tank 101 is set to be not lower than 1/5 of the radial length of the oil slinger, namely, the soaking depth of the oil slinger is not smaller than the inner diameter of the oil slinger 1/5.

In this embodiment, the box 10 is used to fix various components and provide a closed environment, the rotating shaft 20 is used to drive the components to rotate, the wear-resistant sleeve 30 is sleeved on the rotating shaft 20 to protect the rotating shaft 20, and the oil slinger 40 is used to convey lubricating oil to shafting components and parts.

It should be noted that, in the present embodiment, the rotation of the rotating shaft 20 is realized by a driving element, for example, a stepping motor, a dc servo motor, an ac servo motor, or the like is used, and there is no other requirement for the type of the driving element, and the setting can be selected according to the actual use situation.

The wear-resistant sleeve 30 is sleeved on the rotating shaft 20, the wear-resistant sleeve 30 is provided with a first connecting part 31, the rotating shaft 20 is provided with a second connecting part 21, and the first connecting part 31 is connected with the second connecting part 21; wherein, wear-resisting cover is connected through first connecting portion and the epaxial second connecting portion of commentaries on classics and is fixed to also can drive wear-resisting cover constant speed when the pivot rotates and rotate.

The first connecting portion 31 is disposed on the wear-resistant sleeve 30, the second connecting portion 21 is disposed on the rotating shaft 20, the first connecting portion 31 and the second connecting portion 21 are connected to fix the wear-resistant sleeve 30 on the rotating shaft 20, and no additional part is required to fix the wear-resistant sleeve 30.

Wherein, in this embodiment, do not have other requirements to the specific material of wear-resisting cover, can realize wear-resisting function can, specific, wear-resisting cover uses wear-resisting material to make usually, like 316 stainless steel etc. to this the utility model discloses do not restrict.

Specifically, when the rotating shaft rotates, the rotating shaft drives the wear-resistant sleeve at the end to rotate at a constant speed, the oil slinger on the wear-resistant sleeve is influenced by friction and self gravity and can rotate along with the rotation of the oil slinger, the oil slinger continuously abrades parts contacted with the lower part when the oil slinger rotates, and the oil slinger is arranged between the rotating shaft and the oil slinger so as to protect the rotating shaft and prevent the oil slinger from abrading the rotating shaft.

The working process of the embodiment is that the wear-resistant sleeve 30 is firstly sleeved on the rotating shaft 20, the wear-resistant sleeve 30 is fixed through the first connecting portion 31 and the second connecting portion 21, the oil slinger 40 is sleeved on the wear-resistant sleeve 30, the inner surface of the upper end of the oil slinger 40 is in contact with the outer surface of the wear-resistant sleeve 30, the lower end of the oil slinger 40 is soaked in the lubricating oil in the oil storage tank 101, the rotating shaft 20 rotates at the moment, so that the wear-resistant sleeve 30 is driven to rotate at a constant speed, the inner surface of the upper end of the oil slinger 40 always adheres to the wear-resistant sleeve to rotate around the center of the oil slinger under the influence of friction acting force and self gravity of the oil slinger 40 on the wear-resistant sleeve 30, meanwhile, the lubricating oil at the lower end of the.

In this embodiment, the wear-resistant sleeve 30 is sleeved on the rotating shaft 20, the wear-resistant sleeve 30 has a first connecting portion 31, the rotating shaft 20 has a second connecting portion 21, and the first connecting portion 31 is connected with the second connecting portion 21; the wear-resistant sleeve is connected and fixed with the second connecting part on the rotating shaft through the first connecting part, so that the wear-resistant sleeve can be driven to rotate at a constant speed when the rotating shaft rotates, the first connecting part 31 is arranged on the wear-resistant sleeve 30, the second connecting part 21 is arranged on the rotating shaft 20, the first connecting part 31 is connected with the second connecting part 21 to fix the wear-resistant sleeve 30 on the rotating shaft 20, and meanwhile, no additional part is needed for fixing the wear-resistant sleeve 30; when the rotating shaft 20 is connected with the wear-resistant sleeve 30, the first connecting portion 31 and the second connecting portion 21 are matched with each other and fixed, the wear-resistant sleeve 30 is sleeved on the rotating shaft 20, so as to complete the connection and fixation of the wear-resistant sleeve and the rotating shaft, the oil slinger 40 is sleeved on the wear-resistant sleeve 30, oil is driven by the oil slinger 40 to lubricate components of a shaft system, specifically, the inner surface of the upper end of the oil slinger 40 is contacted with the outer surface of the wear-resistant sleeve, the lower end of the oil slinger 40 is soaked in lubricating oil, when the rotating shaft 20 drives the wear-resistant sleeve 30 to rotate, the oil slinger 40 is influenced by the friction acting force and the gravity of the oil slinger, the oil slinger 40 can rotate around the center under the condition that the inner surface of the upper end is always contacted with the wear-resistant sleeve 30, so that the lubricating oil contacted with the lower end is conveyed to the components, the bearing is not easy to damage; because the first connecting part and the second connecting part do not need extra parts to be fixed when being connected, the number of parts of the rotor shaft system is reduced, and meanwhile, the assembly workload is also reduced.

Further, as shown in fig. 1 to 3, the rotating shaft includes a first shaft body 201, a second shaft body 202 and a third shaft body 203 which are connected in sequence, the diameter of the first shaft body 201 is larger than that of the second shaft body 202, the diameter of the second shaft body is larger than that of the third shaft body 203, a shoulder is arranged at the connecting portion of the first shaft body 201 and the second shaft body 202, and a shoulder is also arranged at the connecting portion of the second shaft body 202 and the third shaft body 203; the second connecting portion 21 is located on the outer side wall of the third shaft body 203, and as shown in fig. 4, the wear-resistant sleeve 30 is divided into a stepped first connecting section 301 and a stepped second connecting section 302 which are connected with each other, the inner diameter of the first connecting section 301 is larger than that of the second connecting section 302, the first connecting section 301 is located on the second shaft body 202, and the first connecting portion 31 is located on the second connecting section 302.

When the rotating shaft is connected with the wear-resistant sleeve, the first connecting section 301 is sleeved on the second shaft body 202 to radially position the position of the wear-resistant sleeve, meanwhile, the first connecting portion 31 on the second connecting section 302 is matched with the second connecting portion 31 on the outer side wall of the third shaft body 203 for fixation, and at the moment, the second connecting section 302 is sleeved on the third shaft body 203, so that the wear-resistant sleeve and the rotating shaft are connected and fixed.

Further, to define the rotational position of the slinger 40, the outer side wall of the wear sleeve 30 has an annular groove 32, and the slinger 40 is located within the annular groove 32. Specifically, the annular groove 23 is provided on the outer side wall of the first connection section 301, and the oil slinger 40 always falls into the annular groove 23 when rotating, thereby defining the rotational position thereof.

Further, the wear-resistant bearing further comprises a bearing bush 22 and a bearing 23 sleeved on the bearing bush, wherein the bearing bush 22 is sleeved on the second shaft body 202, and the bearing bush 22 abuts between the first shaft body 201 and the wear-resistant sleeve 30.

The bearing shells 22 are arc-shaped members which are attached to the radian of the second shaft body 202, at least two bearing shells 22 are provided, and at least two bearing shells 22 are abutted to the outer side wall of the second shaft body 202.

When the bearing bush 22 is installed, the at least two bearing bushes 22 are abutted against the outer side wall of the second shaft body 202, the bearing 23 is sleeved into the outer side walls of the at least two bearing bushes 22, at this time, the wear-resistant sleeve is sleeved into the rotating shaft, the first connecting section 301 is sleeved into the second shaft body 202 to radially position the position of the wear-resistant sleeve, meanwhile, the first connecting part 31 on the second connecting section 302 and the second connecting part 31 on the outer side wall of the third shaft body 203 are matched with each other to be fixed, at this time, the second connecting section 302 is sleeved into the third shaft body 203 to complete the connection and fixation of the wear-resistant sleeve and the rotating shaft, at this time, the bearing bushes 22 are abutted against the first shaft body 201 and the first connecting section 301 to complete the fixation; the oil slinger 40 is then suspended in the annular groove 32.

In this embodiment, the rotating shaft includes a first shaft body 201, a second shaft body 202 and a third shaft body 203 which are connected in sequence, the diameter of the first shaft body 201 is larger than that of the second shaft body 202, the diameter of the second shaft body is larger than that of the third shaft body 203, a shoulder is arranged at the connecting part of the first shaft body 201 and the second shaft body 202, and a shoulder is also arranged at the connecting part of the second shaft body 202 and the third shaft body 203; the second connecting portion 21 is located on the outer side wall of the third shaft body 203, meanwhile, the wear-resistant sleeve 30 is divided into a step-shaped first connecting section 301 and a step-shaped second connecting section 302 which are connected with each other, the inner diameter of the first connecting section 301 is larger than that of the second connecting section 302, the first connecting section 301 is located on the second shaft body 202, and the first connecting portion 31 is located on the second connecting section 302; the oil slinger 40 is sleeved in the annular groove 32 on the first connecting section 301 of the wear-resistant sleeve 30, the oil slinger 40 drives oil to lubricate shafting parts, specifically, the inner surface of the upper end of the oil slinger 40 contacts with the outer surface of the annular groove 32, the lower end of the oil slinger 40 is soaked in lubricating oil, when the rotating shaft 20 drives the wear-resistant sleeve 30 to rotate, the oil slinger 40 is influenced by the friction acting force and the gravity of the oil slinger, the oil slinger 40 can rotate around the center of the oil slinger under the condition that the inner surface of the upper end is always contacted with the annular groove 32 of the wear-resistant sleeve, so the lubricating oil contacted with the lower end of the oil slinger is conveyed to parts on the rotating shaft due to the adhesion action, the effect of forming an oil film lubrication rotating pair is achieved, the heating of a bearing is taken away, and the first connecting part and the second connecting part, and simultaneously, the assembly workload is reduced.

The embodiment of the utility model provides a rotor shaft lubricating system, through embolia the first linkage segment of wear-resisting cover on the second shaft body with the position of radial positioning wear-resisting cover, while the first connecting portion on the second linkage segment matches each other with the second connecting portion on the third shaft body lateral wall and fixes, this moment the second linkage segment embolias on the third shaft body, accomplish the connection fixed of wear-resisting cover and pivot with this, also can drive wear-resisting cover constant speed rotation when the pivot rotates, the oil slinger has been cup jointed in the ring channel on the first linkage segment of wear-resisting cover simultaneously, the oil slinger is located the ring channel and rotates, the upper end internal surface of oil slinger contacts with the ring channel external surface of wear-resisting cover simultaneously, the lower extreme of oil slinger soaks in lubricating oil, when the pivot drives wear-resisting cover to rotate, the oil slinger receives the dual influence of frictional force and the gravity of oil slinger self, the oil slinger can be in the condition that the upper end internal surface contacts, therefore, the lubricating oil contacted with the lower end of the bearing is conveyed to parts at each position on the rotating shaft due to the adhesion effect, the effect of forming an oil film lubrication rotating pair is achieved, and the bearing is cooled, so that the bearing is not easy to damage; in this embodiment, because the first connecting portion and the second connecting portion do not need extra parts to be fixed when being connected, the number of parts of the rotor shaft system is reduced, and the assembly workload is also reduced.

As one of the possible implementation manners, as shown in fig. 1 to 4, wherein the first connecting portion 31 is a clamping groove 311, the corresponding second connecting portion 21 is a buckle 211 matched with the clamping groove, or the first connecting portion 31 is a buckle, and the corresponding second connecting portion 21 is a clamping groove matched with the buckle, the utility model discloses below the first connecting portion use the clamping groove as the expression, the second connecting portion use the buckle as the expression, the utility model discloses do not limit this.

During installation, at least two bearing bushes 22 are abutted and abutted on the outer side wall of the second shaft body 202, the bearing 23 is sleeved on the outer side walls of the at least two bearing bushes 22, at this time, the wear-resistant sleeve is sleeved on the rotating shaft, the first connecting section 301 is sleeved on the second shaft body 202 to radially position the position of the wear-resistant sleeve, meanwhile, the clamping groove 311 on the second connecting section 302 is matched and fixed with the buckle 211 on the outer side wall of the third shaft body 203, at this time, the second connecting section 302 is sleeved on the third shaft body 203 to complete connection and fixation of the wear-resistant sleeve and the rotating shaft, at this time, the bearing bushes 22 are abutted and abutted between the first shaft body 201 and the first connecting section 301 to complete fixation of the bearing bushes 22; the oil slinger 40 is then suspended in the annular groove 32.

In this embodiment, the first connecting portion 31 is a slot 311, the corresponding second connecting portion 21 is a clip 211 matched with the slot, the slot 311 on the second connecting section 302 is matched with the clip 211 on the outer sidewall of the third shaft 203 for fixing, the oil slinger 40 is sleeved in the annular groove 32 on the first connecting section 301 of the wear-resistant sleeve 30, the oil slinger 40 drives oil to lubricate shaft system components, specifically, the inner surface of the upper end of the oil slinger 40 contacts with the outer surface of the annular groove 32, the lower end of the oil slinger 40 is soaked in the lubricating oil, when the rotating shaft 20 drives the wear-resistant sleeve 30 to rotate, the oil slinger 40 is affected by both friction force and gravity of the oil slinger, the oil slinger rotates around the center under the condition that the inner surface of the upper end is always contacted with the annular groove of the wear-resistant sleeve, and therefore, the lubricating oil contacted with the lower end of the oil is transported, the oil film lubrication rotating pair is formed, and the heat of the bearing is taken away.

The embodiment provides a rotor shaft lubricating system, the first connecting section of a wear-resistant sleeve is sleeved on a second shaft body to radially position the position of the wear-resistant sleeve, meanwhile, a clamping groove on the second connecting section is matched with a buckle on the outer side wall of a third shaft body for fixing, at the same time, the second connecting section is sleeved on the third shaft body, so that the connection and the fixation of the wear-resistant sleeve and a rotating shaft are completed, the rotating shaft can drive the wear-resistant sleeve to rotate at a constant speed, meanwhile, an oil slinger is sleeved in an annular groove on the first connecting section of the wear-resistant sleeve and is positioned in the annular groove for rotating, meanwhile, the inner surface of the upper end of the oil slinger is contacted with the outer surface of the annular groove of the wear-resistant sleeve, the lower end of the oil slinger is soaked in lubricating oil, when the rotating shaft drives the wear-resistant sleeve to rotate, the oil slinger is influenced by the double effects of the, therefore, the lubricating oil contacted with the lower end of the bearing is conveyed to parts at each position on the rotating shaft due to the adhesion effect, the effect of forming an oil film lubrication rotating pair is achieved, and the bearing is cooled, so that the bearing is not easy to damage; in the embodiment, the clamping groove and the clamping buckle do not need to be additionally fixed by parts when being connected, so that the number of parts of the rotor shaft system is reduced, and the assembly workload is reduced.

Another alternative is shown in fig. 1 to 3 and 5, in which the first connecting portion 31 is an internal thread 312, and the second connecting portion 21 is an external thread 212 matching the internal thread.

In this embodiment, during installation, at least two bearing bushes 22 are abutted against the outer side wall of the second shaft 202, the bearing 23 is sleeved into the outer side walls of the at least two bearing bushes 22, at this time, the wear-resistant sleeve is sleeved into the rotating shaft, the first connecting section 301 is sleeved into the second shaft 202 to radially position the position of the wear-resistant sleeve, at this time, the internal thread 312 on the second connecting section 302 is matched with the external thread 212 on the outer side wall of the third shaft 203, the second connecting section 302 is screwed into the third shaft 203 through a thread to be fixed, so as to complete connection and fixation of the wear-resistant sleeve and the rotating shaft, at this time, the bearing bushes 22 are abutted against the first shaft 201 and the first connecting section 301, so as to complete fixation of the bearing; the oil slinger 40 is then suspended in the annular groove 32.

In this embodiment, the first connection portion 31 is an internal thread 312, the second connection portion 21 is an external thread 212 matched with the internal thread, the internal thread 312 on the second connection section 302 is matched with the external thread 212 on the outer side wall of the third shaft body 203, and the second connection section 302 is screwed into the third shaft body 203 through a thread to be fixed, so as to complete the connection and fixation of the wear-resistant sleeve and the rotating shaft; the oil slinger 40 is sleeved in the annular groove on the first connecting section of the wear-resistant sleeve, the oil slinger 40 drives oil to lubricate shafting parts, specifically, the inner surface of the upper end of the oil slinger 40 is contacted with the outer surface of the annular groove 32, the lower end of the oil slinger 40 is soaked in lubricating oil, when the rotating shaft 20 drives the wear-resistant sleeve 30 to rotate, the oil slinger 40 is influenced by the friction acting force and the gravity of the oil slinger, the oil slinger 40 can rotate around the center of the oil slinger under the condition that the inner surface of the upper end is always contacted with the annular groove 32 of the wear-resistant sleeve, so that the lubricating oil contacted with the lower end of the oil slinger is conveyed to parts on the rotating shaft due to the adhesion effect, the effect; because the wear-resisting cover and the rotating shaft do not need additional parts to be fixed during threaded connection, the number of parts of a rotor shaft system is reduced, and the assembly workload is reduced.

Further, the rotation direction of the internal thread 312 is opposite to the rotation direction of the rotation shaft.

For example, when the shaft is rotated clockwise, the direction of rotation of the internal thread 312 is counterclockwise and the external thread 212 is provided as a corresponding thread, and when the shaft is rotated counterclockwise, the direction of rotation of the internal thread 312 is clockwise and the external thread 212 is provided as a corresponding thread.

In this embodiment, when the shaft is installed, at least two bearing bushes 22 are abutted against the outer side wall of the second shaft body 202, the bearing 23 is sleeved into the outer side walls of the at least two bearing bushes 22, at this time, the wear-resistant sleeve is sleeved into the rotating shaft, the first connecting section 301 is sleeved into the second shaft body 202 to radially position the position of the wear-resistant sleeve, at this time, the internal thread 312 on the second connecting section 302 is matched with the external thread 212 on the outer side wall of the third shaft body 203, wherein the rotation direction of the internal thread is opposite to the rotation direction of the rotating shaft; screwing the second connecting section 302 into the third shaft body 203 through threads to be fixed, so as to complete the connection and fixation of the wear-resistant sleeve and the rotating shaft, wherein the bearing bush 22 abuts against between the first shaft body 201 and the first connecting section 301, so as to complete the fixation of the bearing bush 22; the oil slinger 40 is then suspended in the annular groove 32.

In this embodiment, the first connection portion 31 is an internal thread 312, the second connection portion 21 is an external thread 212 matching with the internal thread, the internal thread 312 on the second connection section 302 matches with the external thread 212 on the outer side wall of the third shaft body 203, and the rotation direction of the internal thread 312 is opposite to the rotation direction of the rotating shaft; screwing the second connecting section 302 into the third shaft body 203 through threads to be fixed, so as to complete the connection and fixation of the wear-resistant sleeve and the rotating shaft; the oil slinger is sleeved in the annular groove in the first connecting section of the wear-resistant sleeve, and drives oil to lubricate shafting parts through the oil slinger. A large amount of heat can be generated in the use of the bearing, and the heat generated in the working process of the bearing is taken away through a formed oil film so as to cool the bearing, so that the bearing is not easy to damage. Meanwhile, the rotation direction of the internal thread of the wear-resistant sleeve is opposite to the rotation direction of the rotating shaft, when the rotor lubricating system works, the wear-resistant sleeve rotates with the rotating shaft at the same direction and the same speed, as before, under the influence of friction force and the self gravity of the oil slinger, the oil ring can rotate around the center of the oil ring under the condition that the inner surface of the upper end of the oil slinger is always contacted with the annular groove of the wear-resistant sleeve, the rotation direction is the same as the working rotation direction of the rotating shaft, but the rotation speed is lower than the working rotation speed of the rotating shaft, so that the inner surface of the upper end of the oil slinger can apply a force opposite to the working rotation direction to the wear-resistant sleeve; on the one hand, the wear-resistant sleeve and the rotating shaft do not need to be fixed by extra parts during threaded connection, so that the number of parts of a rotor shaft system is reduced, the assembly workload is reduced, and on the other hand, the turning direction of the inner threads of the wear-resistant sleeve and the turning direction of the rotating shaft are reversely arranged, so that the function of preventing the threads from loosening is further realized.

In the above embodiment, further, as shown in fig. 5, one end of the wear-resistant sleeve 30 facing the bearing shell 22 has an extension 33, the extension 33 extends towards the outside of the wear-resistant sleeve 30, and the extension 33 abuts against the outer side wall of the inner ring of the bearing 23.

Wherein, the design of extension 33 is further injectd the position of bearing, through the lateral wall butt of extension 33 to bearing 23 inner race, prevents that the bearing from droing when rotating, and the extension extends towards the wear-resisting cover outside, and the lateral wall laminating position with the bearing inner race is more, and better fixes the bearing inner race.

Further, wear-resisting cover 30 is last to have at least two dismouting groove 34, and dismouting groove 34 is located the lateral wall of wear-resisting cover 30, and perhaps dismouting groove 34 is located wear-resisting cover 30 towards the tip of third axis body 203, and is this the embodiment of the utility model discloses the restriction is not done to the embodiment.

The disassembly and assembly groove 34 is used for being matched with a disassembly and assembly tool, so that the wear-resistant sleeve 30 is better disassembled or assembled in a labor-saving manner, specifically, when the wear-resistant sleeve is assembled, the wear-resistant sleeve and the rotating shaft are fixedly connected through threads, and the rotating shaft can be screwed into the wear-resistant sleeve for fixing by inserting the disassembly and assembly tool into the disassembly and assembly groove for rotating; when the wear-resistant sleeve needs to be replaced, the dismounting tool is inserted into the dismounting groove to rotate reversely, so that the wear-resistant sleeve can be taken out, and the labor is saved.

The utility model also provides a rotary machine, including the rotary machine body in the rotary machine, with this body coupling's of rotary machine driving piece and rotor shaft lubricating system.

The rotor shaft lubrication system may be any one of the above embodiments, and reference may be made to the above embodiments specifically, which are not described herein again. The rotating machine body and the driver may be those commonly found in the prior art.

The driving part is connected with the rotating shaft and used for driving the rotating shaft to rotate.

When the rotary machine works, the driving piece can drive the rotating shaft to rotate, the rotating shaft can also drive the wear-resistant sleeve to rotate at the same speed, meanwhile, the inner surface of the upper end of the oil slinger is in contact with the outer surface of the annular groove of the wear-resistant sleeve, the lower end of the oil slinger is soaked in lubricating oil, when the rotating shaft drives the wear-resistant sleeve to rotate, the oil slinger is subjected to the dual influences of a friction acting force and the gravity of the oil slinger, the oil slinger can rotate around the center of the oil slinger under the condition that the inner surface of the upper end of the oil slinger is in contact with the annular groove of the wear-resistant sleeve all the time, therefore, the lubricating oil in contact with.

The rotary machine provided by the embodiment is provided with the rotor shaft lubricating system, the rotor shaft lubricating system is fixed by the mutual matching of the rotating shaft and the wear-resistant sleeve through the first connecting part and the second connecting part, the driving part can drive the rotating shaft to rotate, the rotating shaft can also drive the wear-resistant sleeve to rotate at a constant speed when rotating, the inner surface of the upper end of the oil slinger is contacted with the outer surface of the wear-resistant sleeve, the lower end of the oil slinger is soaked in lubricating oil, when the rotating shaft drives the wear-resistant sleeve to rotate, the oil slinger is subjected to the dual effects of friction acting force and the gravity of the oil slinger, the oil slinger can rotate around the center of the oil slinger under the condition that the inner surface of the upper end of the oil slinger is always contacted with the wear-resistant sleeve, therefore, the lubricating oil contacted with the lower end of the bearing is conveyed to parts at each position on the rotating shaft due to the adhesion effect, the effect of forming an oil film lubrication rotating pair is achieved, and the bearing is cooled, so that the bearing is not easy to damage; because the first connecting part and the second connecting part do not need extra parts to be fixed when being connected, the number of parts of the rotor shaft system is reduced, and meanwhile, the assembly workload is also reduced.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. A rotor shaft lubricating system is characterized by comprising a box body, a rotating shaft, a wear-resistant sleeve and an oil slinger, wherein the wear-resistant sleeve and the oil slinger are positioned in the box body;

the rotating shaft part is inserted into the box body, an oil storage tank is arranged in the box body, the oil slinger is sleeved on the wear-resistant sleeve, and the oil slinger part is positioned in the oil storage tank;

the wear-resistant sleeve is sleeved on the rotating shaft, a first connecting portion is arranged on the wear-resistant sleeve, a second connecting portion is arranged on the rotating shaft, and the first connecting portion is connected with the second connecting portion.

2. The rotor shaft lubrication system according to claim 1, wherein the first connection portion is a snap groove and the second connection portion is a snap that mates with the snap groove, or wherein the first connection portion is a snap and the second connection portion is a snap groove that mates with the snap groove.

3. The rotor shaft lubrication system of claim 1, wherein said first connection portion is an internal thread and said second connection portion is an external thread that mates with said internal thread.

4. The rotor shaft lubrication system of claim 3, wherein the internal threads are counter-threaded to the direction of rotation of the shaft.

5. The rotor shaft lubrication system of claim 1, wherein an outer sidewall of said wear sleeve has an annular groove, said oil slinger being located within said annular groove.

6. The rotor shaft lubrication system according to any one of claims 1 to 5, wherein the rotating shaft comprises a first shaft body, a second shaft body and a third shaft body which are connected in sequence, and the diameters of the first shaft body, the second shaft body and the third shaft body are reduced in sequence;

the bearing bush is sleeved on the second shaft body, and the bearing bush is abutted between the first shaft body and the wear-resistant sleeve.

7. The rotor shaft lubrication system of claim 6, wherein said second connection portion is located on an outer side wall of said third shaft body, said wear sleeve having a first connection section and a second connection section connected to each other, said first connection section having an inner diameter greater than an inner diameter of said second connection section, said first connection section being located on said second shaft body, said first connection portion being located on said second connection section.

8. The rotor shaft lubrication system as recited in claim 6, wherein an end of the wear sleeve facing the bearing shell has an extension extending outward of the wear sleeve, the extension abutting an outer sidewall of the bearing inner race.

9. The rotor shaft lubrication system of claim 6, wherein the wear sleeve has at least two disassembly grooves on an outer sidewall of the wear sleeve or on an end of the wear sleeve facing the third shaft body.

10. A rotary machine comprising a rotary machine body, a drive member connected to the rotary machine body, and a rotor shaft lubrication system according to any one of claims 1 to 9;

the driving piece is connected with the rotating shaft and used for driving the rotating shaft to rotate.

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