CN217713595U - Planetary reduction gearbox lubricating structure - Google Patents

Abstract

The utility model provides a planet reducing gear box lubricating structure relates to the gear box field, including case shell, planet carrier, oil guide plate and oil collection board, the planet carrier rotationally locates in the case shell, in oil guide plate and oil collection board all located the case shell, oil guide plate and case shell fixed connection, oil collection board and planet carrier fixed connection, oil guide plate are used for guiding fluid from the output side of planet carrier to the input side of planet carrier to make fluid get into oil collection board. In the operation process, lead the oiled-plate and lead the oil board with fluid direction oil collecting plate, oil collecting plate department fluid volume increases, and the fluid of collecting plate department collection enters into planet wheel position, carries out effective lubrication to parts such as planet wheel, ring gear and bearing, and is lubricated effectual, and gearbox operation in-process fault rate is low, and the security is high, and the running cost is low.

Description

Planet reduction gearbox lubricating structure

Technical Field

The utility model relates to a gear box field particularly, relates to a planet reducing gear box lubricating structure.

Background

In the process of operating the gearbox, in order to improve safety, oil is required to be used for cooling and lubricating executing components inside the gearbox in the box body. In the prior art, an oil collecting ring is arranged in a box body, the oil collecting ring and a planet carrier in the box body synchronously rotate, and part of oil can be guided to a planet wheel on the planet carrier, so that the planet wheel and an inner gear ring are lubricated and cooled.

The inventor researches and discovers that the prior gearbox has the following defects in the operation process:

the oil collecting effect of the oil collecting ring is poor, and the lubricating effect of the gear box is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a planet reducing gear box lubricating structure, it can increase the oil collection volume to the fluid volume that makes the planet wheel department of reacing increases, improves lubricated effect.

The embodiment of the utility model is realized like this:

the utility model provides a planet reducing gear box lubricating structure, include:

case shell, planet carrier, lead the oiled-plate method and oil collection board, the planet carrier rotationally locates in the case shell, lead the oiled-plate method and the oil collection board is all located in the case shell, lead the oiled-plate method with case shell fixed connection, the oil collection board with planet carrier fixed connection, it is used for following fluid to lead the oiled-plate method the output side direction of planet carrier the input side guide of planet carrier to make fluid get into the oil collection board.

In an alternative embodiment, a first bearing seat and a second bearing seat are arranged on the box shell, the output side of the planet carrier is rotatably connected with the first bearing seat through a bearing, and the input side of the planet carrier is rotatably connected with the second bearing seat through a bearing; the oil guide plate is fixedly connected with the first bearing seat.

In an alternative embodiment, the oil guide plate is provided with a folded edge, and the folded edge is fixedly connected with the first bearing seat.

In an optional embodiment, the oil guide plate is provided with an oil guide inclined surface, a height of a side of the oil guide inclined surface close to the first bearing seat is higher than a height of a side of the oil guide inclined surface far away from the first bearing seat, and the oil collection plate is arranged on a side of the oil guide plate far away from the first bearing seat.

In an optional embodiment, the oil collecting plate is sleeved outside the oil guide plate and is in clearance fit with the oil guide plate.

In an optional implementation manner, an oil baffle plate is connected to the oil guide plate, the oil baffle plate is located between the folded edge and the oil collecting plate, and the oil baffle plate is used for extending into an oil storage pool of the tank shell to reduce oil stirring loss.

In an optional embodiment, the oil baffle includes a first plate portion, a second plate portion, and a third plate portion, which are connected in sequence, the first plate portion is connected to the oil guide plate, the first plate portion and the third plate portion are located on two opposite sides of the second plate portion, an extending direction of a side of the first plate portion away from the second plate portion is opposite to an extending direction of a side of the third plate portion away from the second plate portion, the first plate portion and the third plate portion have a distance in an extending direction of a rotation axis of the planet carrier, the third plate portion is located on a side of the first plate portion close to the oil collecting plate, and the third plate portion is configured to extend into the oil storage pool of the case.

In an alternative embodiment, the folded edge is provided with a fixing hole for passing a screw; be provided with on the first board and dodge the hole, dodge the hole with the fixed orifices is in orthographic projection on the extending direction of the axis of rotation of planet carrier is at least partly overlapping.

In an alternative embodiment, one side of the oil guide plate close to the oil collecting plate protrudes out of the third plate part.

In an alternative embodiment, the oil guide plate is provided as an arc-shaped plate.

The embodiment of the utility model provides a beneficial effect is:

to sum up, the planet reducing gear box lubricating structure that this embodiment provided, in the operation process, lubricating oil splashes to all around by the center under the effect of centrifugal force, and after splashing to the inner wall of box, the whereabouts under the action of gravity, the fluid that partly splashes and the fluid of whereabouts can fall on the oil guide plate of planet carrier below, oil guide plate is with fluid direction oil collecting plate, oil volume increases in oil collecting plate department, the fluid of oil collecting plate department collection enters into planet wheel position, carry out effective lubrication to parts such as planet wheel, ring gear and bearing, it is lubricated effectual, the fault rate is low in the gear box operation process, the security is high, the running cost is low.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on these drawings without inventive efforts.

Fig. 1 is a schematic structural view of a planetary reduction gearbox lubricating structure in an embodiment of the present invention;

FIG. 2 is a schematic view of a portion of the enlarged structure of FIG. 1;

fig. 3 is a schematic structural view of an oil guide plate and an oil baffle plate according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of an oil collecting plate according to an embodiment of the present invention.

Icon:

a 001-ring gear; 002-planet wheels; 003-pin roll; 031-flow-through holes; 100-a box shell; 110-a front shell; 120-rear shell; 130-a first bearing seat; 140-a second bearing housing; 150-an oil reservoir; 200-a planet carrier; 210-an output; 220-a mounting portion; 300-an oil guide plate; 310-folding edges; 320-fixing holes; 330-inner concave surface; 340-outer convex surface; 400-an oil collecting plate; 500-oil baffle; 510-a first plate portion; 511-avoiding holes; 520-a second plate portion; 530-third plate portion.

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. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the 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.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

At present, the inside oil collecting ring or the oil collecting plate 400 that is provided with of reducing gear box, the oil collecting ring cup joints outside planet carrier 200 and is located the one side that planet wheel 002 kept away from the high-speed axle, and at the reducing gear box operation in-process, inside fluid can be blockked by the oil collecting ring to guide fluid to planet wheel 002 position through the oil collecting ring, lubricate parts such as planet wheel 002, bearing, ring gear 001. Because the ring structure of the roughly vertical setting of collection oil ring, only can keep away from the fluid of high-speed shaft one side to planet wheel 002 and guide, and the fluid volume of planet carrier 200 output side is big, but unable by collection oil ring collection, the fluid volume of collection oil ring collection is few, and the fluid that guides to planet wheel 002 department is few, and lubricated effect is poor.

With reference to fig. 1 to 4, in view of this, a designer designs a lubrication structure of a planetary reduction gearbox, which can guide oil at the output side of a planet carrier 200 to an oil collecting ring, so as to increase the amount of oil guided by the oil collecting ring to a planet wheel 002 and improve the lubrication effect.

Referring to fig. 1 and fig. 2, in the present embodiment, the planetary reduction gearbox lubrication structure includes a housing 100, a planet carrier 200, an oil guide plate 300 and an oil collection plate 400, the planet carrier 200 is rotatably disposed in the housing 100, the oil guide plate 300 and the oil collection plate 400 are both disposed in the housing 100, the oil guide plate 300 is fixedly connected to the housing 100, the oil collection plate 400 is fixedly connected to the planet carrier 200, and the oil guide plate 300 is used for guiding oil from an output side of the planet carrier 200 to an input side of the planet carrier 200, so that the oil enters the oil collection plate 400.

The working principle of the planetary reduction gearbox lubricating structure provided by the embodiment is as follows:

in the process of gear box operation, the planet carrier 200 operates at a high speed, lubricating oil splashes all around from the center under the effect of centrifugal force, and after oil splashes to the inner wall of the box, the oil splashes under the action of gravity, the part of the splashed oil and the falling oil can fall on the oil guide plate 300 below the planet carrier 200, the oil guide plate 300 guides the oil to the oil collecting plate 400, the oil collecting plate 400 can collect the falling oil, the oil can be supplemented through the oil guide plate 300, the oil quantity at the position of the oil collecting plate 400 is increased, the collected oil at the position of the oil collecting plate 400 enters the position of the planet wheel 002, to the planet wheel 002, the parts such as the inner gear ring 001 and the bearing are effectively lubricated, the lubrication effect is good, the failure rate is low in the process of gear box operation, the safety is high, and the operation cost is low.

In this embodiment, the enclosure 100 optionally includes a front shell 110 and a rear shell 120. The front case 110 and the rear case 120 are fixedly coupled by screws or the like, and the front case 110 and the rear case 120 define a fitting chamber together after being coupled. In the assembly cavity was all located to parts such as planet carrier 200, planet wheel 002, sun gear and bearing, the assembly cavity was airtight cavity, and a certain amount of lubricating oil can be stored to inside, and gear box operation in-process, lubricating oil is driven with a plurality of parts in the lubricated assembly cavity. The rear housing 120 is provided with a first bearing seat 130, the front housing 110 is provided with a second bearing seat 140, and the first bearing seat 130 and the second bearing seat 140 are coaxially arranged. Bearings may be disposed within both the first bearing housing 130 and the second bearing housing 140. It should be understood that the inner wall of the rear case 120 may be fixedly provided with the ring gear 001.

Optionally, planet carrier 200 includes installation department 220 and output 210 of integral type, is connected with planet wheel 002 through round pin axle 003 and bearing on the installation department 220, and the quantity of planet wheel 002 is a plurality of, and a plurality of planet wheels 002 are evenly arranged at interval in planet carrier 200's circumference, and a plurality of planet wheels 002 all mesh with ring gear 001. In order to facilitate the flowing of oil and the lubrication of parts, a circulation hole 031 is formed in the pin shaft 003, and the oil can flow out of the circulation hole 031 of the pin shaft 003 to directly enter a bearing for assembling the planet wheel 002, so that the lubrication effect can be improved. Meanwhile, an end of the mounting portion 220 away from the output portion 210 is rotatably connected to the second bearing housing 140 by a bearing, and a side of the mounting portion 220 away from the output portion 210 may be referred to as an input side of the planet carrier 200. The output portion 210 is rotatably connected to the first bearing housing 130 through a bearing, and a side of the output portion 210 away from the mounting portion 220 may be referred to as an output side of the planet carrier 200.

Referring to fig. 3, optionally, the oil guide plate 300 is an arc-shaped plate, an edge 310 is disposed on one side of the oil guide plate 300 in the axial direction, a plurality of fixing holes 320 are disposed on the edge 310 at intervals, and screws are disposed in the fixing holes 320. The oil guide plate 300 has an inner concave surface 330 and an outer convex surface 340, and the inner concave surface 330 is configured as a guiding conical surface for guiding oil, that is, the diameter of a circle on which the cross-sectional profile of the inner concave surface 330 is located is gradually changed, and specifically, the diameter of a circle on which the cross-sectional profile of the inner concave surface 330 is located is gradually increased from one side close to the folded edge 310 to the other side. Further, the folds 310 are fan-shaped rings, and the axis of the folds 310 is collinear with the axis of the cone where the concave surface 330 is located.

It should be understood that the cross-sectional profile of the oil deflection plate 300 may be configured as a semicircular ring.

Optionally, the outer convex surface 340 of the oil guide plate 300 is provided with an oil baffle plate 500, the oil baffle plate 500 may be a sector ring, and further, the cross-sectional profile of the oil baffle plate 500 is a semicircular ring. The oil baffle 500 is arranged opposite to and parallel to the folded edge 310, and the oil baffle 500 is spaced from the folded edge 310 in the axial direction of the inner concave surface 330. And, the oil baffle 500 has a distance from one side of the oil guide plate 300 far from the folding edge 310, and the oil baffle 500 does not protrude from one side of the oil guide plate 300 far from the folding edge 310, or it can be understood that one side of the oil guide plate 300 far from the folding edge 310 protrudes from the oil baffle 500, so that there is a space for the oil collecting plate 400 to be assembled between the oil guide plate 300 and the oil baffle 500.

Further, the oil baffle 500 comprises a first plate portion 510, a second plate portion 520 and a third plate portion 530 which are connected in sequence, the first plate portion 510 and the third plate portion 530 are located on two opposite sides of the second plate portion 520, the extending direction of one side, away from the second plate portion 520, of the first plate portion 510 is opposite to the extending direction of one side, away from the second plate portion 520, of the third plate portion 530, the first plate portion 510 and the third plate portion 530 have a distance in the extending direction of the rotation axis of the planet carrier 200, the third plate portion 530 is located on one side, close to the oil collecting plate 400, of the first plate portion 510, the third plate portion 530 is used for extending into the oil storage pool 150 of the box 100 and separating oil in the oil storage pool 150 in the box 100, and the effects of reducing oil stirring loss and improving oil stirring efficiency are achieved. The first plate portion 510 is connected with the outer convex surface 340 of the oil guide plate 300, the first plate portion 510 is provided with a plurality of avoiding holes 511, the number of the avoiding holes 511 is equal to that of the fixing holes 320, the avoiding holes 511 correspond to the fixing holes 320 one by one, when screws penetrating through the fixing holes 320 need to be operated, operation tools such as a screwdriver can extend into the avoiding holes 511 correspondingly, and the operation is convenient and fast.

It should be noted that, the oil guide plate 300 and the oil baffle plate 500 may be set to be an integral structure, during assembly, the oil guide plate 300 is attached to the end surface of the first bearing seat 130 by the folded edge 310 thereof, a screw is inserted into the fixing hole 320 and screwed onto the first bearing seat 130 by the screw, the axis of the conical surface where the inner concave surface 330 of the oil guide plate 300 is located is coaxial with the first bearing seat 130, so that the height of one side of the inner concave surface 330 close to the first bearing seat 130 is higher than the height of one side of the inner concave surface 330 far away from the first bearing seat 130, that is, the inner concave surface 330 can guide oil from the output side to the input side of the planet carrier 200, and further enter the oil collecting plate 400. The oil guide plate 300 is positioned at a position corresponding to the position of the output unit 210, the oil guide plate 300 is positioned below the output unit 210, and the oil falling from the output unit 210 can fall into the inner recessed surface 330. It should be understood that the concave surface 330 has a conical surface with a diameter larger than that of the output portion 210, and the oil falling from the output portion 210 can be received by the concave surface 330 as much as possible.

Referring to fig. 1 and 4, in the present embodiment, the oil collecting plate 400 is an annular plate, which may also be referred to as an oil collecting ring, the oil collecting plate 400 has a through hole in the middle, the oil collecting plate 400 is sleeved outside the oil guiding plate 300 by the through hole, and the oil collecting plate 400 and the oil guiding plate 300 are in clearance fit, and the oil collecting plate 400 and the outer convex surface 340 of the oil guiding plate 300 have a distance. The oil collecting plate 400 is fixed to the mounting portion 220 on the side closer to the output portion 210 by screws, and can rotate together with the carrier 200.

During oil board assembly, cup joint outside oil guide plate 300 to be located first board portion 510 and keep away from one side of hem 310, because first board portion 510 compares third board portion 530 and is close to hem 310 more, first board portion 510 is big with the distance that oil guide plate 300 kept away from one side of hem 310, can provide more fitting space for oil guide plate 400, make oil guide plate 300 keep away from one side of hem 310 can protruding locate oil guide plate 400, be convenient for guide fluid to oil guide plate 400 department from interior concave surface 330. Meanwhile, the third plate part 530 is farther away from the folded edge 310 than the first plate part 510, and after the oil guide plate 300 and the oil baffle plate 500 are assembled in the case shell 100, the third plate part 530 is closer to the mounting part 220 of the planet carrier 200, and the distance between the third plate part and the mounting part is small, so that the effect of reducing oil stirring loss is better achieved.

In this embodiment, during the operation of the lubricating structure of the planetary reduction gearbox, the oil output from the output part 210 of the planetary carrier 200 and the first bearing seat 130 can fall into the concave surface 330, the concave surface 330 guides the oil from the first bearing seat 130 to the second bearing seat 140, so that the oil enters the oil collecting plate 400, the oil at the oil collecting plate 400 can reach the position of the planetary gear 002, related parts are lubricated, the oil at the oil collecting plate 400 is large in amount, and the lubricating effect is good. Meanwhile, the oil baffle plate 500 extends into the oil storage pool 150, so that the oil stirring loss can be reduced, and the oil stirring efficiency can be improved.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A planet reducing gear box lubricating structure, characterized in that includes:

case shell, planet carrier, lead the oiled-plate and collect the oiled-plate, the planet carrier rotationally locates in the case shell, lead the oiled-plate and collect the oiled-plate and all locate in the case shell, lead the oiled-plate with case shell fixed connection, collect the oiled-plate with planet carrier fixed connection, it is used for following fluid to lead the oiled-plate the output side direction of planet carrier the input side guide of planet carrier, so that fluid gets into collect the oiled-plate.

2. A planetary reduction gearbox lubrication arrangement as claimed in claim 1, wherein:

the box shell is provided with a first bearing seat and a second bearing seat, the output side of the planet carrier is rotatably connected with the first bearing seat through a bearing, and the input side of the planet carrier is rotatably connected with the second bearing seat through a bearing; the oil guide plate is fixedly connected with the first bearing seat.

3. A planetary reduction gearbox lubrication arrangement as claimed in claim 2, wherein:

the oil guide plate is provided with a folded edge, and the folded edge is fixedly connected with the first bearing seat.

4. A planetary reduction gearbox lubrication arrangement as claimed in claim 3, wherein:

the oil guide plate is provided with an oil guide inclined plane, the height of one side, close to the first bearing seat, of the oil guide inclined plane is higher than the height of one side, far away from the first bearing seat, of the oil guide inclined plane, and the oil collecting plate is arranged on one side, far away from the first bearing seat, of the oil guide plate.

5. A planetary reduction gearbox lubrication arrangement according to claim 4, characterised in that:

the oil collecting plate is sleeved outside the oil guide plate and is in clearance fit with the oil guide plate.

6. A planetary reduction gearbox lubrication arrangement according to any of claims 3-5, characterised in that:

the oil guide plate is connected with an oil baffle plate, the oil baffle plate is positioned between the folded edge and the oil collecting plate, and the oil baffle plate is used for extending into an oil storage pool of the box shell so as to weaken the loss of oil stirring.

7. A planetary reduction gearbox lubrication arrangement as claimed in claim 6, wherein:

the oil baffle plate comprises a first plate part, a second plate part and a third plate part which are sequentially connected, the first plate part is connected with the oil guide plate, the first plate part and the third plate part are positioned on two opposite sides of the second plate part, the extending direction of one side, away from the second plate part, of the first plate part is opposite to the extending direction of one side, away from the second plate part, of the third plate part, the first plate part and the third plate part are spaced in the extending direction of the rotation axis of the planet carrier, the third plate part is positioned on one side, close to the oil collecting plate, of the first plate part, and the third plate part is used for extending into the oil storage pool of the box shell.

8. A planetary reduction gearbox lubrication arrangement as claimed in claim 7, wherein:

the folded edge is provided with a fixing hole for penetrating a screw; be provided with on the first board and dodge the hole, dodge the hole with the fixed orifices is in orthographic projection on the extending direction of the axis of rotation of planet carrier is at least partly overlapping.

9. A planetary reduction gearbox lubrication arrangement as claimed in claim 7, wherein:

one side of the oil guide plate, which is close to the oil collecting plate, protrudes out of the third plate part.

10. A planetary reduction gearbox lubrication arrangement as claimed in claim 1, wherein:

the oil guide plate is an arc-shaped plate.

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