阅读说明：本技术 一种减速器轴承润滑装置 (Bearing lubricating device of speed reducer ) 是由 宋波 耿秀强 吕慧 王惠恩 高徐生 于 2021-10-12 设计创作，主要内容包括：本发明涉及减速器相关技术领域,且公开了一种减速器轴承润滑装置,包括减速箱体,所述减速箱体中设有用于进行工作及盛放冷却液的工作腔。本发明通过在转动轴的侧壁设有驱动叶,同时,在减速箱体中开设有用于降温箱与工作腔相通的吸液道,从而在转动轴转动工作的过程中,通过其驱动叶的转动使得降温箱中的气流经支撑轴承后又向驱动齿轮方向流动,不仅通过风冷降温支撑轴承与驱动齿轮,还使得降温箱中的气流输出压力降低,使得工作腔中的冷却液输送至降温箱中,并对支撑轴承进行润滑,还通过驱动叶将吸出的冷却液排至驱动齿轮中,最终实现支撑轴承及驱动齿轮在转动的过程中时刻进行风冷及液冷的目的。(The invention relates to the related technical field of speed reducers and discloses a speed reducer bearing lubricating device which comprises a speed reducer box body, wherein a working cavity for working and containing cooling liquid is arranged in the speed reducer box body. According to the invention, the driving blades are arranged on the side wall of the rotating shaft, and meanwhile, the liquid suction channel for communicating the cooling box and the working cavity is arranged in the reduction box body, so that in the rotating process of the rotating shaft, airflow in the cooling box flows towards the driving gear after passing through the supporting bearing through the rotation of the driving blades, the output pressure of the airflow in the cooling box is reduced through the air cooling supporting bearing and the driving gear, the cooling liquid in the working cavity is conveyed into the cooling box and lubricates the supporting bearing, and the sucked cooling liquid is discharged into the driving gear through the driving blades, and finally, the purposes of air cooling and liquid cooling of the supporting bearing and the driving gear at any time in the rotating process are realized.)

1. A lubricating device for a reducer bearing comprises a reducer box body (1), wherein a working chamber (101) used for working and containing cooling liquid is arranged in the reducer box body (1), a liquid injection box (2) used for injecting liquid into the working chamber (101) is fixedly arranged on one side of the surface of the reducer box body (1), supporting bearings (5) located in the working chamber (101) are respectively and movably arranged in the middle parts of two sides of the inner wall of the reducer box body (1), a rotating shaft (3) is fixedly arranged on the inner wall of each supporting bearing (5), a driving gear (4) located in the working chamber (101) is fixedly arranged in the middle part of the side wall of each rotating shaft (3), an oil sealing cover (11) used for preventing the cooling liquid in the working chamber (101) from flowing out is respectively and movably arranged on the side wall of each rotating shaft (3), and the oil sealing cover (11) and the side wall of the reducer box body (1) are movably arranged, the method is characterized in that: the cooling box is characterized in that a cooling box (6) is formed by the inner wall of the reduction box body (1), one side of the oil sealing cover (11) and the side wall of the supporting bearing (5), a liquid suction channel (7) used for communicating the cooling box (6) with the bottom of the working cavity (101) is formed in the inner wall of the reduction box body (1), and a driving blade (8) located on one side of the supporting bearing (5) is fixedly installed on the side wall of the rotating shaft (3).

2. A reducer bearing lubrication device according to claim 1, characterised in that: the surface shape of drive leaf (8) is oval, and the windward side of drive leaf (8) is the evagination, the leeward side of drive leaf (8) is the arc body of indent, the quantity of drive leaf (8) has eight, and eight drive leaf (8) average divide into two sets ofly, and a set of drive leaf (8) are installed at the lateral wall of axis of rotation (3) and are located one side of support bearing (5) with equal angle.

3. A reducer bearing lubrication device according to claim 2, characterised in that: the side wall of the rotating shaft (3) is respectively provided with a liquid inlet groove (9) positioned in the cooling box (6), the inner wall of the rotating shaft (3) is provided with an oil spraying channel (10) communicated with the cooling box (6) through the liquid inlet groove (9), and the other end of the oil spraying channel (10) is positioned on one side of the lee side of the driving blade (8).

4. A reducer bearing lubrication device according to claim 3, characterised in that: the shape of the oil injection passage (10) is designed to be a hollow groove formed by combining a straight line section and an arc section, and the arc section of the oil injection passage (10) is positioned on one side of the leeward side of the driving blade (8).

5. A reducer bearing lubrication device according to claim 3, characterised in that: the number of the oil spraying channels (10) is eight, the eight oil spraying channels (10) are divided into two groups, the oil spraying channels (10) are arranged on the side wall of the rotating shaft (3) at equal angles, and one end of each oil spraying channel (10) is located on one side of the leeward side of each driving blade (8).

Technical Field

The invention relates to the technical field of speed reducers, in particular to a speed reducer bearing lubricating device.

Background

The transmission parts and the bearings of the speed reducer need to be well lubricated, and the purpose of the lubrication is mainly to reduce abrasion and dissipate heat, so that the working efficiency of the equipment is improved and the service life of the equipment is prolonged.

At present, the lubrication mode of a high-speed bearing is mainly characterized in that oil is thrown into an oil groove of the wall of a speed reducer box through the rotation of a gear and flows into the bearing from the oil groove, so that the lubrication of the bearing is realized.

In the practical use process, the rotating shaft can rotate at a low speed for a long time, so that the lubricating oil of the rotating shaft cannot reach the lowest speed of oil throwing, the oil cannot be thrown into an oil groove, and the bearing is further burnt out in the long-time oil-free operation process; meanwhile, in the process of continuous rotation of the gear, the tooth tips are adopted to lubricate and cool the outside of the gear, so that the tooth surface of the gear cannot be cooled, and the gear cannot generate high temperature in the continuous operation process because the temperature of the tooth surface cannot be released in the working process.

Disclosure of Invention

Aiming at the defects of the conventional speed reducer bearing lubricating device in the background technology in the using process, the invention provides the speed reducer bearing lubricating device which has the advantages of realizing the air cooling and the liquid cooling of a support bearing and a driving gear at any time in the rotating process, enhancing the cooling strength and adapting to the high-speed and low-speed cooling, and solves the technical problems in the background technology.

The invention provides the following technical scheme: a speed reducer bearing lubricating device comprises a speed reducer body, wherein a working cavity used for working and containing cooling liquid is arranged in the speed reducer body, a liquid injection box used for injecting liquid into the working cavity is fixedly arranged on one side of the surface of the speed reducer body, supporting bearings located in the working cavity are respectively and movably arranged in the middle of two sides of the inner wall of the speed reducer body, a rotating shaft is fixedly arranged on the inner wall of each supporting bearing, a driving gear located in the working cavity is fixedly arranged in the middle of the side wall of each rotating shaft, an oil sealing cover used for preventing the cooling liquid in the working cavity from flowing out is respectively and movably arranged on the side wall of each rotating shaft, the oil sealing cover is movably arranged on the side wall of the speed reducer body, a cooling box is formed by the inner wall of the speed reducer body, one side of the oil sealing cover and the side wall of each supporting bearing, a liquid suction channel used for communicating the cooling box with the bottom of the working cavity is formed on the inner wall of the speed reducer body, and a driving blade positioned on one side of the supporting bearing is fixedly arranged on the side wall of the rotating shaft.

Preferably, the surface shape of the driving blades is oval, the windward surface of each driving blade is convex, the leeward surface of each driving blade is concave arc-shaped, the number of the driving blades is eight, the eight driving blades are divided into two groups on average, and one group of the driving blades are arranged on the side wall of the rotating shaft at equal angles and are positioned on one side of the supporting bearing.

Preferably, the side wall of the rotating shaft is respectively provided with a liquid inlet groove located in the cooling box, the inner wall of the rotating shaft is provided with an oil spraying channel communicated with the cooling box through the liquid inlet groove, and the other end of the oil spraying channel is located on one side of the lee side of the driving blade.

Preferably, the shape of the oil injection passage is a hollow groove formed by combining a straight line section and an arc section, and the arc section of the oil injection passage is positioned on one side of the leeward surface of the driving blade.

Preferably, the number of the oil injection passages is eight, the eight oil injection passages are equally divided into two groups, one group of the oil injection passages are arranged on the side wall of the rotating shaft at equal angles, and one ends of the oil injection passages are respectively positioned on one side of leeward surfaces of the four driving blades.

The invention has the following beneficial effects:

1. according to the invention, the driving blades are arranged on the side wall of the rotating shaft, and meanwhile, the liquid suction channel for communicating the cooling box and the working cavity is arranged in the reduction box body, so that in the rotating process of the rotating shaft, airflow in the cooling box flows towards the driving gear after passing through the supporting bearing through the rotation of the driving blades, the output pressure of the airflow in the cooling box is reduced through the air cooling supporting bearing and the driving gear, the cooling liquid in the working cavity is conveyed into the cooling box and lubricates the supporting bearing, and the sucked cooling liquid is discharged into the driving gear through the driving blades, and finally, the purposes of air cooling and liquid cooling of the supporting bearing and the driving gear at any time in the rotating process are realized.

2. According to the invention, the oil injection passage positioned on one side of the driving blade is arranged on the side wall of the rotating shaft, so that in the rotating process of the driving blade, the phenomenon that the oil injection passage sucks air flow in the cooling box through the rotation of the driving blade is realized through the air flow pressure difference generated by the movement of the driving blade, the phenomenon that the rotating shaft cannot be effectively cooled in the low-speed rotating process is avoided, the purpose that the pressure in the cooling box is reduced in the working process so as to conveniently suck cooling liquid is further enhanced, and the purpose that the pressure in the oil injection passage is reduced by the thrown cooling liquid in the rotating process of the rotating shaft through the arc-shaped one end of the oil injection passage is finally realized by enhancing the cooling strength and adapting to the high-speed and low-speed cooling.

Drawings

FIG. 1 is a schematic cross-sectional view of the overall structure of the present invention;

FIG. 2 is a schematic view of a structural driving blade of the present invention;

FIG. 3 is a schematic view of the working state of the coolant in the structure of the present invention;

fig. 4 is a schematic view of the wind direction working rotation of the structure of the invention.

In the figure: 1. a reduction box body; 101. a working chamber; 2. a liquid injection tank; 3. a rotating shaft; 4. a drive gear; 5. a support bearing; 6. a cooling box; 7. a liquid suction channel; 8. driving the blades; 9. a liquid inlet tank; 10. an oil injection passage; 11. and (7) sealing an oil cover.

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, a reducer bearing lubrication apparatus includes a reducer case 1, and a working chamber 101 for working and containing a coolant is disposed in the reducer case 1, a liquid injection tank 2 for injecting liquid into the working chamber 101 is fixedly mounted on one side of the surface of the reducer case 1, support bearings 5 disposed in the working chamber 101 are movably mounted on the middle portions of two sides of the inner wall of the reducer case 1, respectively, a rotation shaft 3 is fixedly mounted on the inner wall of the support bearings 5, a driving gear 4 disposed in the working chamber 101 is fixedly mounted on the middle portion of the side wall of the rotation shaft 3, oil seal covers 11 for preventing the coolant in the working chamber 101 from flowing out are movably mounted on the side walls of the rotation shaft 3, and the oil seal covers 11 are movably mounted on the side walls of the reducer case 1 to cool the driving gear 4 and the support bearings 5, respectively, so as to cool the inner wall of the reducer case 1, One side of the oil seal cover 11 and the side wall of the support bearing 5 form a cooling box 6, meanwhile, the inner wall of the reduction box body 1 is provided with a liquid absorption channel 7 which is used for communicating the cooling box 6 with the bottom of the working cavity 101, and the side wall of the rotating shaft 3 is fixedly provided with a driving blade 8 which is positioned on one side of the support bearing 5, so that in the rotating process of the liquid injection box 2, the pressure in the cooling box 6 is reduced through the change of air flow generated by the driving blade 8 in the rotating process, and further, the cooling liquid at the bottom of the working cavity 101 is conveyed to the cooling box 6 through the liquid absorption channel 7, thereby realizing the lubrication of the support bearing 5.

Wherein, according to the attached figure 2, in order to reduce the pressure in the cooling box 6 and simultaneously radiate the driving gear 4, so that the surface shape of the driving blades 8 is elliptical, the windward side of the driving blades 8 is convex, the leeward side of the driving blades 8 is concave arc, the number of the driving blades 8 is eight, the eight driving blades 8 are divided into two groups, one group of the driving blades 8 is installed on the side wall of the rotating shaft 3 at equal angles and is located at one side of the supporting bearing 5, therefore, in the process that the rotating shaft 3 drives the driving blades 8 to rotate, the windward side of the driving blades 8 blows the airflow in the cooling box 6 to the side wall of the driving gear 4 through the supporting bearing 5, so as to realize the air cooling of the supporting bearing 5 and the driving gear 4, and the cooling liquid is sucked through the pressure reduction in the cooling box 6, and then is sprayed to the side wall of the driving gear 4 through the supporting bearing 5 and the driving blades 8, further liquid cooling of the supporting bearing 5 and the driving gear 4 is realized, so that the supporting bearing 5 and the driving gear 4 are cooled in the working process.

According to the attached drawing 1, in order to enhance the suction strength of the cooling box 6 to the cooling liquid in the working cavity 101, the side wall of the rotating shaft 3 is respectively provided with a liquid inlet groove 9 located in the cooling box 6, the inner wall of the rotating shaft 3 is provided with an oil injection passage 10 communicated with the cooling box 6 through the liquid inlet groove 9, and the other end of the oil injection passage 10 is located on the leeward side of the driving blade 8, so that in the rotating process of the driving blade 8, the windward side of the driving blade is rotated by the rotating shaft 3 to increase the flow velocity of the driving blade, and the oil injection passage 10 generates a certain adsorption force by the bernoulli principle, so that the airflow in the cooling box 6 is further drawn out, the strength of the pressure reduction in the cooling box 6 is further enhanced, and the phenomenon that the cooling box 6 sucks the cooling liquid in the working cavity 101 through the liquid suction passage 7 is enhanced.

As shown in fig. 1, in order to enhance the strength of pressure reduction in the cooling box 6, the shape of the oil injection passage 10 is set to be an empty groove formed by combining a straight line section and an arc section, and the arc section of the oil injection passage 10 is located on the leeward side of the driving blade 8, so that when the rotating shaft 3 rotates and the cooling liquid in the arc section of the oil injection passage 10 is thrown out, the cooling liquid at the straight line end tends to move, and further the pressure in the cooling box 6 is reduced, and meanwhile, according to the adsorption force generated in the oil injection passage 10 and the reduction of the pressure in the cooling box 6 by combining the driving blade 8, the driving blade 8 can keep the pressure reduction in the cooling box 6 during high and low speed rotation, so that the support bearing 5 can perform synchronous cooling during movement.

According to the attached drawing 2, in order to enable the oil injection passages 10 to generate the adsorption force through the driving blades 8, the number of the oil injection passages 10 is set to be eight, the eight oil injection passages 10 are equally divided into two groups, one group of oil injection passages 10 are arranged on the side wall of the rotating shaft 3 at equal angles, and one ends of the oil injection passages 10 are respectively located on the lee side of the four driving blades 8, so that in the rotating process of the driving blades 8, the adsorption force is generated in the oil injection passages 10 through the driving blades 8, and the intensity of pressure reduction in the cooling box 6 is further enhanced.

The using method (working principle) of the invention is as follows:

oil injection state: according to the figure 1, the bolt on the liquid injection box 2 is opened, so that the liquid injection box 2 injects proper cooling liquid into the working cavity 101, and the height value of the cooling liquid is in contact with the outer teeth of the driving gear 4, thereby completing the injection of the cooling liquid in the working cavity 101;

the working state is as follows: according to the illustration in fig. 3, in the process of rotating the rotating shaft 3, the driving gear 4 is used for torque transmission, and contacts with the cooling liquid in the working chamber 101 through the side wall of the driving gear 4 to realize the cooling and lubrication of the gear teeth outside the driving gear 4, meanwhile, in the process of rotating the rotating shaft 3 at high speed or low speed, the driving blade 8 still keeps rotating, so that the airflow in the cooling box 6 is blown to the driving gear 4 through the supporting bearing 5, and the supporting bearing 5 and the driving gear 4 are cooled by the airflow generated by the driving blade 8;

in the process of continuous operation, the pressure in the cooling box 6 is reduced through the rotation of the driving blade 8, the cooling liquid in the working cavity 101 is further sucked into the cooling box 6 through the liquid suction channel 7, the oil liquid and the air flow cannot flow out to the outer side of the reduction box body 1 through the oil sealing cover 11, the cooling liquid sucked into the cooling box 6 can move to the supporting bearing 5, so that the supporting bearing 5 is lubricated, and in the process of continuous rotation and adsorption of the driving blade 8, the oil liquid can be blown to the side wall of the driving gear 4 through the driving blade 8, so that the cooling of the supporting liquid cooling bearing 5 and the driving gear 4 is completed;

in the process of rotating the driving blade 8, as shown in fig. 4, the airflow generated by the rotation of the driving blade 8 generates an adsorption force on the lee part of the driving blade 8 according to bernoulli's principle, so that the driving blade 8 generates an adsorption force in the oil injection passage 10, and further the pressure in the cooling box 6 is reduced through the oil injection passage 10, so that the strength of the cooling box 6 sucking cooling liquid from the working chamber 101 through the liquid suction passage 7 is enhanced, and meanwhile, the cooling liquid in the oil injection passage 10 is also sprayed to the side wall of the driving gear 4 through the cooling oil passing through the oil injection passage 10 and following the driving blade 8 to be synchronous, so that the liquid cooling strength of the support bearing 5 and the driving gear 4 is further enhanced;

according to the illustration in fig. 1, the end of the oil injection passage 10 close to the driving blade 8 is provided with an arc-shaped section, so that after the cooling liquid is in the oil injection passage 10, the cooling liquid is thrown out from the arc-shaped section through the rotation of the rotating shaft 3, and in the process of throwing out the cooling liquid, the end of the far driving blade 8 in the oil injection passage 10 generates an adsorption force, so as to further enhance the adsorption strength in the cooling box 6, and further enhance the cooling efficiency of the support bearing 5 and the driving gear 4.

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.