CN114294380A - Harmonic gear reducer - Google Patents
Harmonic gear reducer Download PDFInfo
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- CN114294380A CN114294380A CN202111511110.0A CN202111511110A CN114294380A CN 114294380 A CN114294380 A CN 114294380A CN 202111511110 A CN202111511110 A CN 202111511110A CN 114294380 A CN114294380 A CN 114294380A
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Abstract
The invention relates to the field of mechanical transmission, in particular to a harmonic gear reducer, which comprises a wave generator, a flexible gear, a steel wheel, a fixing mechanism, an annular air bag, a block mechanism and a shaft, wherein the outer wall of the wave generator is clamped with the flexible gear, an outer gear of the flexible gear is meshed with an inner gear of the steel wheel, the steel wheel is fixedly connected with the fixing mechanism, the block mechanism is arranged in the fixing mechanism, an annular groove is arranged on the outer wall of the block mechanism, the annular groove is matched with the annular air bag, a threaded hole is formed in the middle of the block mechanism, the block mechanism is in threaded connection with the shaft, the shaft is fixedly connected with the wave generator, the wall thickness of a part a in the annular air bag is larger than that of b part, the wall thickness of the a part can increase the wear resistance of the annular air bag and prolong the service life, an air hole is arranged at b part of the annular air bag, the pore diameter of the air hole is gradually reduced from inside to outside, and in the process of ejecting gas, the gas flow velocity becomes fast, thereby accelerating the heat loss and playing the dust removal effect.
Description
Technical Field
The invention relates to the field of mechanical transmission, in particular to a harmonic gear reducer.
Background
In the field of mechanical transmission, various speed reducers can be classified according to the characteristics, application range and application occasions.
The harmonic gear reducer is simple and compact in structure, large in transmission ratio and high in transmission precision, and therefore is widely applied to the field of mechanical engineering.
But at present most harmonic gear reducer ware is because the drive ratio is very big, and the rotational speed is too high, and the heat production is very fast, and difficult heat dissipation incessantly accumulates the heat and makes harmonic gear reducer ware high temperature to make harmonic gear reducer ware life reduce, increase cost.
In view of the above, in order to overcome the above problems, the present invention provides a harmonic gear reducer to solve the above problems.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the invention provides a harmonic gear reducer, which is characterized in that an elliptical hollow part is arranged in the middle of a fixing mechanism, an air bag is pressed once when the fixing mechanism rotates for one circle, and air is sprayed out of the air bag to help the harmonic reducer to dissipate heat, so that the service life of the harmonic gear reducer is prolonged, and the cost is reduced.
The invention provides a harmonic gear reducer, which comprises a wave generator, a flexible gear, a steel gear, a fixing mechanism, an annular air cavity, a block mechanism and a shaft, wherein the outer wall of the wave generator is clamped with the flexible gear, an outer gear of the flexible gear is meshed with an inner gear of the steel gear, the steel gear is fixedly connected with the fixing mechanism, the block mechanism is arranged inside the fixing mechanism, an annular groove is formed in the outer wall of the block mechanism, the annular groove is matched with the annular air cavity, a threaded hole is formed in the middle of the block mechanism, the block mechanism is in threaded connection with the shaft, and the shaft is fixedly connected with the wave generator.
Preferably, as an embodiment of the invention, the annular air cavity is provided with air holes at the position b, the wall thickness of the annular air cavity at the position a is set to be 10-20cm, and the wall thickness of the annular air cavity 5 at the position b is set to be 3-5 cm.
Preferably, as an embodiment of the present invention, the pore diameter of the air hole in the annular air cavity is gradually reduced from the inside to the outside of the annular air cavity.
Preferably, the middle part of the fixing mechanism is hollow, the hollow shape of the fixing mechanism is oval, a block mechanism is arranged at the hollow part of the oval, and the fixing mechanism is fixedly connected with the rigid wheel.
Preferably, the block mechanism comprises a barb, coil springs and a block body, grooves are formed in the surface of the block body, the coil springs are arranged at four corners inside the block body, and the coil springs are fixedly connected with the barb.
Preferably, the barb adopts rubber material, the shape of barb and steel wheel outside cooperate.
The invention has the following beneficial effects:
when the harmonic gear reducer works, the steel wheel is fixedly connected through the fixing machine, the steel wheel rotates to drive the fixing mechanism to rotate, the annular air cavity is extruded once when the fixing mechanism rotates for one circle, when the fixing mechanism is in contact with the annular air cavity, the annular air cavity is extruded and jets air, when the fixing mechanism is not in contact with the annular air cavity, the annular air cavity is inflated, so that the annular air cavity can be ensured to have enough air volume, the condition that the air volume is insufficient can not occur, the wall thickness of the part a in the annular air cavity is set to be 20-20cm, the wear resistance of the annular air cavity can be increased, the service life of the annular air cavity is prolonged, the wall thickness of the part b in the annular air cavity is set to be 3-5cm, the shaking of the air cavity can be increased in the air jetting process, the disorder of the air movement is increased, the heat dissipation area is increased, the pore diameter of the air cavity is gradually reduced from the inside to the outside of the annular air cavity, and the air pressure can be increased, thereby accelerate the gas flow rate, and then can improve the radiating effect, and when gaseous spouting to the reduction gear, can blow off the dust on reduction gear surface, reduce the frictional resistance of steel wheel and flexbile gear, can increase harmonic gear reducer's life through the effect of heat dissipation and dust removal, reduce the maintenance cost.
Through being equipped with the coil spring in four inside angle departments of piece mechanism, coil spring fixed connection barb, when harmonic gear reducer ware does not use or when transporting, the coil spring is straightened, and the rigid axle outer wall can be hooked to the barb, plays the effect of fixed steel axle, has reduced the emergence of hitting the tooth phenomenon, and the barb adopts the rubber material, can prevent to damage harmonic gear reducer ware, avoids influencing harmonic gear reducer ware's transmission precision.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a front view of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is a diagram illustrating the operation state of the annular air cavity according to the present invention;
FIG. 4 is a diagram of the annular air chamber of the present invention in an inoperative condition;
FIG. 5 is a cross-sectional view of the annular air cavity;
in the figure: the device comprises a wave generator 1, a flexible gear 2, a steel gear 3, a fixing mechanism 4, an annular air cavity 5, an air hole 51, a block mechanism 6, a barb 61, a coil spring 62, a block 63 and a shaft 7.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
The invention provides a harmonic gear reducer, which comprises a wave generator 1, a flexible gear 2, a steel gear 3, a fixing mechanism 4, an annular air cavity 5, a block mechanism 6 and a shaft 7, wherein the outer wall of the wave generator 1 is clamped with the flexible gear 2, an outer gear of the flexible gear 2 is meshed with an inner gear of the steel gear 3, the steel gear 3 is fixedly connected with the fixing mechanism 4, the block mechanism 6 is arranged inside the fixing mechanism 4, an annular groove is arranged on the outer wall of the block mechanism 6, the annular groove is matched with the annular air cavity 5, a threaded hole is arranged in the middle of the block mechanism 6, the block mechanism 6 is in threaded connection with the shaft 7, and the shaft 7 is fixedly connected with the wave generator 1.
At harmonic gear reducer ware during operation, through 4 fixed connection steel wheels 3 of fixed establishment, steel wheel 3 rotates and drives 4 rotations of fixed establishment, will extrude annular air cavity 5 once when 4 rounds of each turn of fixed establishment, annular air cavity 5 receives the extrusion, 5 gas injection of annular air cavity, spun gas plays the cooling effect to harmonic gear reducer ware, and at gas injection in-process, can further reduce the dust of steel wheel 3 and flexbile gear 2 department, thereby reduce the frictional resistance of steel wheel 3 and flexbile gear 2, through cooling and dust removal, can increase harmonic gear reducer ware's life, reduce the cost of maintaining.
As an embodiment of the invention, the air hole 51 is arranged at the position b in the annular air cavity 5, the wall thickness at the position a in the annular air cavity 5 is set to be 10-20cm, and the wall thickness at the position b in the annular air cavity 5 is set to be 3-5 cm.
Because a department is the contact part of fixed establishment 4 and annular air cavity 5 in the annular air cavity 5, so the department wall thickness sets up to 10-20cm in the annular air cavity 5 can increase the wearability of annular air cavity 5, thereby increase the life of annular air cavity 5, department wall thickness sets up to 3-5cm in the annular air cavity 5, when gas is located the gas pocket 51 blowout at b, b department can shake in the annular air cavity 5, thereby drive the vibrations of gas pocket 51, make the gas moving direction of spun have disorder nature, thereby heat radiating area has been increased, and then harmonic gear reducer's life has been increased.
As an embodiment of the invention, the pore diameter of the air holes 51 in the annular air cavity 5 is gradually reduced from the inside to the outside of the annular air cavity (5).
The aperture of the air hole 51 in the annular air cavity 5 is gradually reduced from the inside to the outside of the annular air cavity 5, so that the pressure of the aperture of the air hole 51 from the inside to the outside can be gradually increased, the gas flow rate of the gas sprayed to the speed reducer is increased, the heat loss on the surface of the harmonic gear speed reducer is accelerated, the dust amount is reduced, and the service life of the harmonic gear speed reducer is prolonged.
As an embodiment of the invention, the middle part of the fixing mechanism 4 is hollow, the hollow shape of the fixing mechanism is an ellipse, a block mechanism 6 is arranged at the hollow part of the ellipse, and the fixing mechanism 4 is fixedly connected with the rigid wheel 3.
Set up block mechanism 6 at oval center, 6 outer walls of block mechanism are equipped with the round recess, cooperate with annular air cavity 5 and the recess on the block mechanism 6, be convenient for fixed establishment 4 rotates extrusion annular air cavity 5, fixed establishment 4 rotates the round for every turn, annular air cavity 5 is once extruded, contact with annular air cavity when fixed establishment 4, annular air cavity 5 is extruded from gas pocket 51 jet-propelled, do not contact with annular air cavity 5 when fixed establishment 4, annular air cavity 5 is from gas pocket 51 tonifying qi, make annular air cavity 5 have sufficient tolerance all the time like this, the not enough condition of air feed can not appear, thereby can further guarantee to harmonic gear reduction gear cooling and the effect of removing dust, increase harmonic gear reduction gear's life and reduce the maintenance cost.
As an embodiment of the invention, the block mechanism 6 comprises a barb 61, coil springs 62 and a block 63, wherein the surface of the block 63 is provided with a groove, the coil springs 62 are arranged at four corners inside the block 63, and the coil springs 62 are fixedly connected with the barb 61.
Because rock in the transportation, flexbile gear and steel wheel can have the phenomenon of colliding the tooth in the harmonic gear reduction unit, consequently straighten coil spring 62, detain the outer wall of steel wheel 3 with barb 61 to reduce rocking of steel wheel 3, reduce the phenomenon of colliding the tooth, thereby reduced the wearing and tearing of flexbile gear and steel wheel, reduced the maintenance cost.
In one embodiment of the present invention, the barb 61 is made of rubber, and the shape of the barb 61 matches with the outer side of the steel wheel 3.
Barb 61 adopts the rubber material purpose to prevent that barb 61 from damaging steel wheel 3, has reduced the maintenance cost, and barb 61 shape and steel wheel 3 suit can play better fixed action when barb 61 hooks steel wheel 3 when the transportation.
The working principle is as follows: when the harmonic gear reducer works, the steel wheel 3 is fixedly connected through the fixing mechanism 4, the steel wheel 3 rotates to drive the fixing mechanism 4 to rotate, the annular air cavity 5 is extruded once when the fixing mechanism 4 rotates for one circle, when the fixing mechanism 4 is in contact with the annular air cavity 5, the annular air cavity 5 is extruded, air is sprayed out of the annular air cavity 5, when the fixing mechanism 4 is not in contact with the annular air cavity 5, the annular air cavity 5 is inflated, so that the annular air cavity 5 can be ensured to have enough air quantity, the condition of insufficient air quantity cannot occur, the wall thickness of the part a in the annular air cavity 5 is set to be 20-20cm, the abrasion resistance of the annular air cavity 5 can be increased, the service life of the annular air cavity 5 is prolonged, the wall thickness of the part b in the annular air cavity 5 is set to be 3-5cm, the shaking of the air hole 51 can be increased in the air spraying process, the disorder of air movement is increased, and the heat dissipation area is increased, the aperture of the air hole 51 is gradually reduced from the inside to the outside of the annular air cavity 5, so that the air pressure can be increased, the air flow rate is accelerated, the heat dissipation effect can be improved, in addition, when the air is sprayed to the speed reducer, the dust on the surface of the speed reducer can be blown away, the friction resistance of the steel wheel 3 and the flexible wheel 2 is reduced, the service life of the harmonic gear speed reducer can be prolonged through the heat dissipation and dust removal effects, and the maintenance cost is reduced.
Through being equipped with coil spring 62 in four inside angles departments of block mechanism 6, coil spring 62 fixed connection barb 61, when harmonic gear reducer does not use or when transporting, coil spring 62 straightens, and 3 outer walls of rigid axle can be hooked to barb 61, play the effect of fixed steel axle 3, have reduced the emergence of hitting the tooth phenomenon, and barb 61 adopts rubber materials, can prevent to damage harmonic gear reducer, avoids influencing harmonic gear reducer's transmission precision.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a harmonic gear reducer ware, includes wave generator (1), flexbile gear (2), steel wheel (3), fixed establishment (4), annular air cavity (5), piece mechanism (6) and axle (7), its characterized in that: wave generator (1) outer wall and flexbile gear (2) joint, flexbile gear (2) external gear and steel wheel (3) internal gear meshing, steel wheel (3) and fixed establishment (4) fixed connection, fixed establishment (4) inside is equipped with piece mechanism (6), piece mechanism (6) outer wall is equipped with the annular groove, the annular groove cooperatees with annular air cavity (5), be equipped with the screw hole in the middle of piece mechanism (6), piece mechanism (6) and axle (7) threaded connection, axle (7) and wave generator (1) and fixed connection.
2. A harmonic gear reducer according to claim 1 in which: an air hole (51) is formed in the position b in the annular air cavity (5), the wall thickness of the position a in the annular air cavity (5) is set to be 10-20cm, and the wall thickness of the position b in the annular air cavity (5) is set to be 3-5 cm.
3. A harmonic gear reducer according to claim 1 in which: the aperture of the air hole (51) in the annular air cavity (5) is gradually reduced from the inside to the outside of the annular air cavity (5).
4. A harmonic gear reducer according to claim 1 in which: the middle part of the fixing mechanism (4) is hollow, the hollow shape of the fixing mechanism is oval, a block mechanism (6) is arranged at the hollow part of the oval, and the fixing mechanism (4) is fixedly connected with the rigid wheel (3).
5. A harmonic gear reducer according to claim 1 in which: the block mechanism (6) comprises a barb (61), coil springs (62) and a block body (63), grooves are formed in the surface of the block body (63), the coil springs (62) are arranged at four corners inside the block body (63), and the coil springs (62) are fixedly connected with the barb (61).
6. A harmonic gear reducer according to claim 2 in which: the barb (61) is made of rubber, and the shape of the barb (61) is matched with the outer side of the steel wheel (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111511110.0A CN114294380A (en) | 2021-12-11 | 2021-12-11 | Harmonic gear reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111511110.0A CN114294380A (en) | 2021-12-11 | 2021-12-11 | Harmonic gear reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114294380A true CN114294380A (en) | 2022-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111511110.0A Pending CN114294380A (en) | 2021-12-11 | 2021-12-11 | Harmonic gear reducer |
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| CN (1) | CN114294380A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116412238A (en) * | 2023-06-08 | 2023-07-11 | 江苏万基传动科技有限公司 | High-precision harmonic speed reducer for robot |
-
2021
- 2021-12-11 CN CN202111511110.0A patent/CN114294380A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116412238A (en) * | 2023-06-08 | 2023-07-11 | 江苏万基传动科技有限公司 | High-precision harmonic speed reducer for robot |
| CN116412238B (en) * | 2023-06-08 | 2023-08-29 | 江苏万基传动科技有限公司 | High-precision harmonic speed reducer for robot |
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