CN212899615U

CN212899615U - Lubricating device of harmonic speed reducer

Info

Publication number: CN212899615U
Application number: CN202021372675.6U
Authority: CN
Inventors: 曹景胤; 历刚; 郭习文
Original assignee: Guoren Robot Tianjin Co ltd
Current assignee: Guoren Robot Tianjin Co ltd
Priority date: 2020-07-14
Filing date: 2020-07-14
Publication date: 2021-04-06
Anticipated expiration: 2030-07-14

Abstract

The utility model relates to a lubricating arrangement of harmonic speed reducer machine, ring gear in the rigidity, flexible outer ring gear and waveform generator, ring gear top is equipped with the lubricated oil tank body in the rigidity, the annular groove top even has vertical into oil pipe, the upper end and the lubricated oil tank body bottom intercommunication of advancing oil pipe, the annular groove is equipped with the sponge layer in proper order from the extroversion, the cotton layer of oil absorption, oil absorption felt layer and guard net, it is equipped with the circulation box to go out the oil pipe below, the middle part is equipped with the filter screen in the circulation box, it stretches into circulation bottom half to go out the oil pipe lower extreme, circulation bottom half one side is equipped with the oil-out, all be equipped with the ooff valve on. The utility model discloses can carry out abundant lubrication to ring gear in the rigidity and flexible outer ring gear meshing department, and lubricated lubricating oil of usefulness can realize reuse, has solved because of the lubricated insufficient problem that leads to wearing and tearing of ring gear in the rigidity and flexible outer ring gear meshing department.

Description

Lubricating device of harmonic speed reducer

Technical Field

The utility model relates to a lubricated technical field of harmonic speed reducer machine especially relates to a lubricating arrangement of harmonic speed reducer machine.

Background

A conventional harmonic gear reducer (harmonic Wave reducer) disclosed in taiwan patent No. I444549 includes a rigid inner ring gear (Circular spline), a flexible outer ring gear (Flexspline), and a waveform Generator (Wave Generator), wherein the flexible outer ring gear is disposed inside the rigid inner ring gear. The waveform generator is arranged inside the flexible outer gear ring and comprises a cam, a cam outer ring sleeve and a bearing. The cam and the outer cam ring sleeve are driven to rotate by an external force, the flexible outer gear ring is forced to elastically deform through the bearing, part of external teeth of the flexible outer gear ring are meshed with internal teeth of the rigid inner gear ring, the meshed position of the rigid inner gear ring and the flexible outer gear ring moves along a ring-shaped path, and the flexible outer gear ring can output equivalent torque at low rotating speed.

Lubricating grease at the meshing position of the rigid inner gear ring and the flexible outer gear ring of the harmonic speed reducer is difficult to store, and the meshing position of the rigid inner gear ring and the flexible outer gear ring is easy to wear under long-time and heavy-load operation. In addition, the existing lubricating device has insufficient lubrication on the meshing part of the rigid inner gear ring and the flexible outer gear ring, and the rigid inner gear ring and the flexible outer gear ring are easily abraded due to incomplete lubrication.

Disclosure of Invention

The utility model aims at solving the defects of the prior art and providing a lubricating device of a harmonic speed reducer.

The utility model discloses a realize above-mentioned purpose, adopt following technical scheme: a lubricating device of a harmonic speed reducer comprises a rigid inner gear ring, a flexible outer gear ring and a waveform generator, wherein a lubricating oil tank body is arranged at the top of the rigid inner gear ring, the lower end of the lubricating oil tank body is embedded into the rigid inner gear ring, the flexible outer gear ring is positioned in the rigid inner gear ring, outer teeth of the flexible outer gear ring are meshed with inner teeth of the rigid inner gear ring, the waveform generator is positioned in the flexible outer gear ring and is rotationally connected with the flexible outer gear ring through a bearing, an annular groove is arranged on the inner tooth side of the rigid inner gear ring, a vertical oil inlet pipe is connected to the top of the annular groove, the upper end of the oil inlet pipe is communicated with the bottom of the lubricating oil tank body, a sponge layer, an oil-absorbing cotton layer, an oil-absorbing felt layer and a protective net are sequentially arranged in the annular groove from outside to inside, the protective net is fixed on the inner wall of the annular groove, the protective net is attached to the, the middle part is equipped with the filter screen in the circulation box, and the oil pipe lower extreme stretches into circulation bottom of the case portion, and even there is circulating oil pipe circulating one side of the case body, and circulating oil pipe is located the filter screen top with the junction of circulation box, and circulating oil pipe's the other end and lubricated oil tank body top are connected, are equipped with the circulating pump on the circulating oil pipe, and lubricated oil tank body top is equipped with the oil inlet, and circulation bottom of the case portion one side is equipped with the oil-out, all is equipped with.

The lower end of the circulating oil pipe is 2-25 cm higher than the filter screen.

The width of the annular groove ranges from 0.5 cm to 2 cm.

The oil outlet pipe and the circulating oil pipe are transparent pipes.

The distance between the circulating box body and the lower end of the rigid internal gear ring is more than 5 cm.

The lubricating oil tank body is provided with a liquid level meter.

An air inlet valve is arranged at the top of the circulating box body.

The utility model has the advantages that: the utility model discloses can carry out abundant lubrication to ring gear in the rigidity and flexible outer ring gear meshing department, and lubricated lubricating oil of usefulness can realize reuse, has solved because of the lubricated insufficient problem that leads to wearing and tearing of ring gear in the rigidity and flexible outer ring gear meshing department.

Drawings

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

FIG. 2 is an enlarged schematic view at A in FIG. 1;

in the figure: 1-lubricating oil tank body; 2-a rigid internal gear ring; 3-a flexible outer toothed ring; 4-a waveform generator; 5-an oil inlet pipe; 6-sponge layer; 7-an oil absorbent cotton layer; 8-an oil-absorbing felt layer; 9-a protection net; 10-an oil outlet pipe; 11-a circulating box body; 12-a filter screen; 13-a circulating oil pipe; 14-a circulation pump; 15-oil inlet; 16-an oil outlet; 17-a switching valve; 18-an intake valve;

the following detailed description will be made in conjunction with embodiments of the present invention with reference to the accompanying drawings.

Detailed Description

The invention will be further explained with reference to the following figures and examples:

as shown in fig. 1 to 2, a lubricating device for a harmonic reducer includes a rigid inner ring gear 2, a flexible outer ring gear 3, and a waveform generator 4, wherein the flexible outer ring gear 3 is located inside the rigid inner ring gear 2, and outer teeth of the flexible outer ring gear 3 are engaged with inner teeth of the rigid inner ring gear 2, and the waveform generator 4 is located inside the flexible outer ring gear 3 and is rotatably connected to the flexible outer ring gear 3 through a bearing. (the connection method of the rigid inner ring gear 2, the flexible outer ring gear 3 and the waveform generator 4 is a common connection method of a harmonic speed reducer, which is not the application focus of the utility model, so the internal result is not shown).

The top of the rigid inner toothed ring 2 is provided with a lubricating oil tank body 1, the lower end of the lubricating oil tank body 1 is embedded into the rigid inner toothed ring 2, the lubricating oil tank body 1 is filled with engine oil to be lubricated, the engine oil has strong fluidity but poor lubricating grease does not have fluidity, the inner tooth side of the rigid inner toothed ring 2 is provided with an annular groove, the width range of the annular groove is 0.5-2 cm, the top of the annular groove is connected with a vertical oil inlet pipe 5, the upper end of the oil inlet pipe 5 is communicated with the bottom of the lubricating oil tank body 1, the oil inlet pipe 5 is used for conveying oil into the annular groove, the annular groove is sequentially provided with a sponge layer 6, an oil absorption cotton layer 7, an oil absorption felt layer 8 and a protection net 9 from outside to inside, the oil absorption of the sponge layer 6 is greater than the oil absorption of the oil absorption cotton layer 7, the oil absorption of the oil absorption cotton layer 7 is greater than the oil absorption of the felt layer 8, so that the lubricating oil, the protection net 9 is fixed on the inner wall of annular groove, the protection net 9 is used for protecting the oil absorption felt layer 8, the protection net 9 is laminated with the outer tooth of flexible outer ring gear 3, the annular groove lower extreme even has an oil outlet pipe 10, the oil outlet pipe 10 below is equipped with circulation box 11, the middle part is equipped with filter screen 12 in the circulation box 11, the oil outlet pipe 10 lower extreme stretches into circulation box 11 bottom, circulation box 11 one side even has circulation oil pipe 13, circulation oil pipe 13 is located filter screen 12 top with the junction of circulation box 11, and circulation oil pipe 13 lower extreme is 5 centimetres higher than filter screen 12.

The other end of the circulating oil pipe 13 is connected with the top of the lubricating oil tank body 1, a circulating pump 14 is arranged on the circulating oil pipe 13, an oil inlet 15 is formed in the top of the lubricating oil tank body 1, an oil outlet 16 is formed in one side of the bottom of the circulating tank body 11, and switch valves 17 are arranged on the oil inlet 15 and the oil outlet 16.

The oil outlet pipe 10 and the circulating oil pipe 13 are transparent pipes, so that the flowing condition of the lubricating oil can be observed conveniently.

The distance between the circulating box body 11 and the lower end of the rigid inner gear ring 2 is more than 5 cm, so that the speed of lubricating oil flowing into the circulating box body 11 can be observed and judged conveniently.

The lubricating oil tank body 1 is provided with a liquid level meter.

An air inlet valve 18 is provided at the top of the circulation tank 11 to maintain the pressure inside the circulation tank 11 and prevent negative pressure from being generated.

The utility model discloses the during operation, lubricating oil in the lubricated oil tank body 1 enters into the annular groove through advancing oil pipe 5 in, sponge layer 6, oil absorption cotton layer 7 and oil absorption felt layer 8 all have stronger oil absorption characteristic, can absorb lubricating oil fast, and the homodisperse, lubricating oil disperses in proper order on sponge layer 6, oil absorption cotton layer 7 and oil absorption felt layer 8, oil that absorbs on felt layer 8 reaches the saturated condition, lubricating oil on the oil absorption felt layer 8 overflows, between ring gear 2 and the outer ring gear 3 of flexibility in flowing into the rigidity through guard net 9, lubricate the tooth on ring gear 2 and the outer ring gear 3 of flexibility in the rigidity, 360 lubricate, it is lubricated effectual. In addition, the redundant lubricating oil flows into the circulating box body 11 through the oil outlet pipe 10, the filtering net 12 filters the lubricating oil, the circulating pump 14 provides power, and the filtered lubricating oil flows into the lubricating oil tank body 1 again through the circulating oil pipe 13. The utility model discloses can carry out abundant lubrication to the meshing department of ring gear 2 and the outer ring gear of flexibility in the rigidity, and lubricated lubricating oil of usefulness can realize reuse, has solved because of the lubricated insufficient problem that leads to wearing and tearing of the meshing department of ring gear 2 and the outer ring gear of flexibility in the rigidity.

The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above embodiments, and various improvements made by the method concept and technical solution of the present invention or directly applied to other occasions without improvement are all within the protection scope of the present invention.

Claims

1. The utility model provides a lubricating arrangement of harmonic speed reducer machine, ring gear (2) in the rigidity, flexible outer ring gear (3) and waveform generator (4), a serial communication port, ring gear (2) top is equipped with the lubrication oil tank body (1) in the rigidity, and in ring gear (2) in the lubrication oil tank body (1) lower extreme embedding rigidity, flexible outer ring gear (3) are located in rigidity ring gear (2), and the external tooth of flexible outer ring gear (3) and the internal tooth meshing of ring gear (2) in the rigidity, waveform generator (4) are located flexible outer ring gear (3), and rotate through the bearing with flexible outer ring gear (3) and be connected, the internal tooth side of rigidity ring gear (2) is equipped with annular groove, the annular groove top even has vertical oil inlet pipe (5), the upper end and the lubrication body (1) bottom intercommunication of oil inlet pipe (5), annular groove is equipped with sponge layer (6) from the extroversion in proper order, An oil absorption cotton layer (7), an oil absorption felt layer (8) and a protection net (9), wherein the protection net (9) is fixed on the inner wall of an annular groove, the protection net (9) is attached to the outer teeth of a flexible outer toothed ring (3), the lower end of the annular groove is connected with an oil outlet pipe (10), a circulating box body (11) is arranged below the oil outlet pipe (10), a filter screen (12) is arranged in the middle of the inside of the circulating box body (11), the lower end of the oil outlet pipe (10) extends into the bottom of the circulating box body (11), one side of the circulating box body (11) is connected with a circulating oil pipe (13), the joint of the circulating oil pipe (13) and the circulating box body (11) is positioned above the filter screen (12), the other end of the circulating oil pipe (13) is connected with the top of a lubricating oil tank body (1), a circulating pump (14) is arranged on the circulating oil pipe (13), switch valves (17) are arranged on the oil inlet (15) and the oil outlet (16).

2. The lubrication device of a harmonic reducer according to claim 1, wherein the lower end of the circulation oil pipe (13) is higher than the filter screen (12) by 2-25 cm.

3. The lubrication device of a harmonic reducer according to claim 1, wherein the width of the annular groove is in the range of 0.5-2 cm.

4. The lubrication device of a harmonic reducer according to claim 1, wherein the oil outlet pipe (10) and the oil circulation pipe (13) are both transparent pipes.

5. The lubrication device of a harmonic reducer according to claim 4, wherein the distance from the circulation box (11) to the lower end of the rigid inner ring gear (2) is greater than 5 cm.

6. The lubrication device of a harmonic reducer according to claim 1, wherein a level gauge is attached to the lubrication tank body (1).

7. The lubrication device of a harmonic reducer according to claim 1, wherein an air intake valve (18) is provided on the top of the circulation box (11).