Rotary lubricating structure sealed by metal stacked rings

Abstract

The utility model discloses a rotary lubricating structure sealed by metal stacked rings, which is characterized in that: an inner gear ring is arranged on a box body; the planet carrier is installed on the inner gear ring through a planet carrier bearing, a transition cover is fixedly installed on the planet carrier, and the transition cover is located between the planet carrier and the box body; two metal sealing stacked rings are mounted in sealing grooves in two sides of the oil groove of the transition cover; the planet wheel shaft is mounted on the planet carrier; the planet wheel shaft sleeve, the planet wheel bearing and the planet wheel are sequentially mounted on the planet wheel shaft in a sleeving manner; the sun gear extends into the planet carrier and is meshed with the planet gear; the first branch is communicated to the planet carrier bearing from the outside of the box body through the through hole; the second branch is communicated to the planet carrier by the first branch through the oil groove of the transition cover; the third branch is communicated with the interior of the planet carrier through the transition cover and the planet carrier in sequence from the second branch; and the fourth branch is communicated to the planet wheel bearing through the planet wheel shaft and the planet wheel shaft sleeve in sequence from the interior of the planet wheel. The device is simple in structure and good in lubricating effect.

Description

Technical Field

[0001] The utility model relates to the technical fields of metal stacked ring seal lubrication and the like, and in particular to a rotary lubrication structure of metal stacked ring seals. Background Art

[0002] The planetary transmission device uses several planetary gears to transmit loads at the same time, and meshes with the sun gear and the inner gear ring at the same time. It has the characteristics of compact structure, small size, light weight, large transmission ratio, high transmission efficiency, and concentric input and output to achieve power diversion and speed change. Due to the complex structure of the planetary gear transmission, it has high requirements for design, manufacturing, use and maintenance. Since the planetary gear and the inner bearing of the planetary gear are always in a rotating state when the planetary gear is working, in order to fully lubricate and cool the planetary gear and the inner bearing of the planetary gear, the existing lubrication device cannot fully lubricate them. Utility Model Content

[0003] In view of this, in order to solve the above problems, the purpose of the utility model is to provide a rotary lubrication structure of metal stacked ring seal, which includes:

[0004] Internal gear ring, housing, planet carrier bearing, sun gear, planet gear, planet gear bearing, planet gear shaft, planet gear sleeve, planet carrier;

[0005] The inner gear ring is mounted on the box body;

[0006] The planet carrier is mounted on the inner gear ring through the planet carrier bearing, and a transition cover is fixedly mounted on the planet carrier, and the transition cover is located between the planet carrier and the housing;

[0007] Two metal sealing stack rings are installed in the sealing grooves on both sides of the oil groove of the transition cover;

[0008] The planetary gear shaft is mounted on the planetary carrier;

[0009] The planetary wheel shaft sleeve, the planetary wheel bearing, and the planetary wheel are sequentially sleeved and installed on the planetary wheel shaft;

[0010] The sun gear extends into the planet carrier, and the sun gear meshes with the planet gears;

[0011] Wherein, the rotary lubrication structure includes: a first branch, a second branch, a third branch and a fourth branch; a through hole is provided on the housing; the first branch is connected to the planetary carrier bearing through the through hole from the outside of the housing; the second branch is connected to the planetary carrier through the oil groove of the transition cover via the first branch; the third branch is connected to the inside of the planetary carrier via the second branch through the transition cover and the planetary carrier in sequence; the fourth branch is connected to the planetary wheel bearing via the inside of the planetary wheel through the planetary wheel shaft and the planetary wheel sleeve in sequence.

[0012] The above-mentioned rotary lubrication structure with metal stacked ring seal, wherein, a first nozzle; the first nozzle is installed on the planetary carrier through an oil separator block, and the first nozzle is connected to the second branch.

[0013] In the above-mentioned rotary lubrication structure with metal stacked ring seal, a sealing ring is provided between the oil separator block and the planet carrier.

[0014] The above-mentioned rotary lubrication structure with metal stacked ring seal further includes: a second nozzle; the second nozzle is installed on the planetary gear shaft.

[0015] The above-mentioned metal stacked ring sealed rotary lubrication structure, wherein, further includes: a spacer; the spacer is provided with a plurality of oil holes, the spacer is arranged between the planetary gear sleeve and the planetary gear bearing, and the fourth branch is connected to the planetary gear bearing through the inside of the planetary gear in sequence through the planetary gear shaft, the second nozzle, the planetary gear sleeve, and the spacer.

[0016] Compared with the prior art, the above technical solution has the following positive effects:

[0017] (1) The rotary lubrication structure of the device is easy to install, the seal is made of metal and is not affected by temperature and climate, and the lubrication structure is resistant to high temperature and high pressure.

[0018] (2) The rotary lubrication structure of this device is a metal labyrinth seal lubrication structure, which is particularly suitable for harsh environments and occasions where repair and maintenance are inconvenient.

[0019] (3) The rotary lubrication structure of this device adopts metal stacked ring seal, which can not only prevent the leakage of lubricating oil, but also prevent the infiltration of dust, water and other pollutants.

[0020] (4) The rotary lubrication structure of this device adopts metal stacked ring seal, which has very stable sealing performance, greatly prolongs the life of the lubrication structure, is a maintenance-free structure, and improves work efficiency.

[0021] (5) The rotary lubrication structure of the device has a wide range of applicability and is suitable for all types of stationary and rotating lubrication systems. It is energy-saving and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of a rotary lubrication structure of a metal stacked ring seal of the utility model.

[0023] Figure 2 for Figure 1 Enlarged view of part A in the middle.

[0024] Figure 3 for Figure 1 Enlarged view of part B in the middle.

[0025] 1. inner gear ring; 2. housing; 3. planet carrier bearing; 4. sun gear; 5. planet gear; 6. planet gear bearing; 7. planet gear shaft; 8. planet gear shaft sleeve; 9. planet carrier; 10. first nozzle; 11. oil distributor; 12. sealing ring; 13. metal sealing stack ring; 14. transition cover; 15. spacer; 16. second nozzle; 17. first branch; 18. second branch; 19. third branch; 20. fourth branch; 21. through hole. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings and specific implementations, but they are not intended to limit the present invention.

[0027] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect that the utility model can produce and the purpose that can be achieved, should still fall within the scope of the technical content disclosed by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the utility model without substantial change of the technical content.

[0028] like Figures 1 to 3 As shown, a preferred embodiment of a metal stacked ring seal rotary lubrication structure is shown, which includes: an inner ring gear 1, a housing 2, a planet carrier bearing 3, a sun gear 4, a planet gear 5, a planet gear bearing 6, a planet gear shaft 7, a planet gear sleeve 8, and a planet carrier 9.

[0029] The inner gear ring 1 is installed on the housing 2; the planet carrier 9 is installed on the inner gear ring 1 through the planet carrier bearing 3, and a transition cover 14 is fixedly installed on the planet carrier 9, and the transition cover 14 is located between the planet carrier 9 and the housing 2; two metal sealing stack rings are installed in the sealing grooves on both sides of the oil groove of the transition cover 14; the planetary gear shaft is installed on the planetary carrier; the planetary gear shaft sleeve 8, the planetary gear bearing 6, and the planetary gear 5 are sequentially sleeved and installed on the planetary gear shaft 7; the sun gear 4 extends into the planetary carrier 5, and the sun gear 4 is meshed with the planetary gear 5; wherein the rotary lubrication structure includes: a first Branch 17, the second branch 18, the third branch 19 and the fourth branch 20; a through hole 21 is provided on the housing 2; the first branch 17 is connected to the planetary carrier bearing 3 through the through hole 21 from the outside of the housing 2; the second branch 18 is connected to the planetary carrier 9 from the first branch 17 through the oil groove of the transition cover 14; the third branch 19 is connected to the inside of the planetary carrier 9 from the second branch 18 through the transition cover 14 and the planetary carrier 9 in sequence; the fourth branch 20 is connected to the planetary gear bearing 6 from the inside of the planetary gear 9 through the planetary gear shaft 7 and the planetary gear sleeve 8 in sequence.

[0030] In actual use, the lubricating oil enters the device through the through hole of the housing 2, and then lubricates and cools the planetary carrier bearing 3 through the first branch 17; then the lubricating oil flows to the planetary carrier 9 of the second branch 18 to lubricate and cool the planetary carrier 9, and then the second branch 18 is divided into a third branch 19 and a fourth branch 20, and the lubricating oil continues to flow into the transition cover 14 and the planetary carrier 9 to lubricate and cool the planetary gear 5; the lubricating oil flows from the planetary carrier 9 to the planetary gear shaft 7, and then flows to the planetary gear sleeve 8 through the planetary gear shaft 7 to achieve lubrication and cooling of the planetary gear bearing 6. Therefore, the planetary gear 5 and the planetary gear bearing 6 are both lubricated and cooled during rotation.

[0031] Specifically, since the housing 2 and the planet carrier 9 are in a state of relative rotation, a transition cover 14 is installed on the planet carrier 9 to rotate with the planet carrier 9. At this time, the planet carrier 9 and the transition cover 14 are relatively stationary, and metal sealing stack rings 13 are installed in the sealing grooves on both sides of the oil groove of the transition cover 14 to seal and prevent the lubricating oil from leaking. The metal sealing stack ring 13 is a metal sealing ring installed in the sealing groove on the transition cover 14. The main sealing principle of the metal sealing stack ring 13 is a labyrinth seal, that is, a plurality of annular metal sealing stack rings 13 are installed in the sealing groove of the transition cover 14 of the rotating part, and a series of throttling gaps and expansion cavities are formed between the rings. The sealed lubricating oil produces a throttling effect when passing through the gap of the tortuous labyrinth to achieve the purpose of preventing leakage.

[0032] The utility model also has the following implementation methods based on the above:

[0033] Furthermore, a rotary lubrication structure of metal stacked ring seal, wherein the first nozzle 10 is installed on the planet carrier 9 through the oil distributor 11, and the first nozzle 10 is connected to the second branch 18. And the amount of lubricating oil sprayed into the planet carrier 9 can be controlled by the first nozzle 10.

[0034] Furthermore, a rotary lubrication structure with metal stacked ring seal is provided, wherein a sealing ring 12 is provided between the oil distributor block 11 and the planet carrier 9. Specifically, the sealing ring 12 is used to prevent oil leakage, and then the first nozzle 10, the oil distributor block 11 and the sealing ring 12 are combined to achieve lubrication and cooling of the planetary gear 5.

[0035] Furthermore, a rotary lubrication structure with metal stacked ring seals further includes: a second nozzle 16; the second nozzle 16 is installed on the planetary gear shaft 7. The second nozzle 16 can control the amount of spraying into the planetary gear bearing 6.

[0036] Furthermore, a rotary lubrication structure with metal stacked ring seals, wherein it further includes: a spacer 15; a plurality of oil holes are provided on the spacer 15, and the spacer 15 is arranged between the planetary gear sleeve 8 and the planetary gear bearing 6, and the fourth branch 20 is connected from the inside of the planetary gear 5 to the planetary gear bearing 6 through the planetary gear shaft 7, the second nozzle 16, the planetary gear sleeve 8, and the spacer 15 in sequence. Specifically, the second nozzle 16 is installed on the planetary gear shaft 7, and then flows to the planetary gear bearing 6 through the spacer 15, so as to realize lubrication and cooling of the planetary gear bearing 6.

[0037] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A rotary lubrication structure of metal stacked ring seal, characterized in that: include: Internal gear ring, housing, planet carrier bearing, sun gear, planet gear, planet gear bearing, planet gear shaft, planet gear sleeve, planet carrier; The inner gear ring is mounted on the box body; The planet carrier is mounted on the inner gear ring through the planet carrier bearing, and a transition cover is fixedly mounted on the planet carrier, and the transition cover is located between the planet carrier and the housing; Two metal sealing stack rings are installed in the sealing grooves on both sides of the oil groove of the transition cover; The planetary gear shaft is mounted on the planetary carrier; The planetary wheel shaft sleeve, the planetary wheel bearing, and the planetary wheel are sequentially sleeved and installed on the planetary wheel shaft; The sun gear extends into the planet carrier, and the sun gear meshes with the planet gears; Wherein, the rotary lubrication structure includes: a first branch, a second branch, a third branch and a fourth branch; a through hole is provided on the housing; the first branch is connected to the planetary carrier bearing through the through hole from the outside of the housing; the second branch is connected to the planetary carrier through the oil groove of the transition cover via the first branch; the third branch is connected to the inside of the planetary carrier via the second branch through the transition cover and the planetary carrier in sequence; the fourth branch is connected to the planetary wheel bearing via the inside of the planetary wheel through the planetary wheel shaft and the planetary wheel sleeve in sequence.

2. A rotary lubrication structure of metal stacked ring seal according to claim 1, characterized in that: The first nozzle is installed on the planet carrier through an oil separator, and the first nozzle is connected to the second branch.

3. A rotary lubrication structure of metal stacked ring seal according to claim 2, characterized in that: A sealing ring is provided between the oil separator block and the planet carrier.

4. The rotary lubrication structure of metal stacked ring seal according to claim 1, characterized in that: Also includes: A second nozzle; The second nozzle is mounted on the planetary gear shaft.

5. A rotary lubrication structure of metal stacked ring seal according to claim 4, characterized in that: Also includes: A spacer ring; a plurality of oil holes are provided on the spacer ring, and the spacer ring is arranged between the planetary wheel sleeve and the planetary wheel bearing. The fourth branch is connected to the planetary wheel bearing through the interior of the planetary wheel in sequence through the planetary wheel shaft, the second nozzle, the planetary wheel sleeve, and the spacer ring.

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