阅读说明：本技术 一种新型滚珠蜗杆减速机 (Novel ball worm speed reducer ) 是由 张德明 于 2020-06-19 设计创作，主要内容包括：本发明提供一种新型滚珠蜗杆减速机,包括：机壳、蜗杆和蜗轮,所述机壳内部一侧套设有蜗杆,蜗杆在机壳内部自由旋转,所述蜗杆一侧设有蜗轮,所述蜗轮套设在机壳内部,在机壳内部自由转动。本发明提供的新型滚珠蜗杆减速机,滚珠、蜗杆和蜗轮都采用高强度耐磨材质钢,传动强度和刚性比传统减速机更大,采用滚珠结构,滚动摩擦传动方式,提高了机械效率,采用滚珠结构,能承受更大的输入转速,使用场合更广泛,采用滚珠结构,同时也缩小了减速机的体积,使用太阳轮和行星轮组合减速,减速效果更好。(The invention provides a novel ball worm speed reducer, comprising: the worm gear is arranged on one side of the worm, the worm is sleeved inside the casing, and the worm freely rotates inside the casing. According to the novel ball worm speed reducer provided by the invention, the balls, the worm and the worm wheel are all made of high-strength wear-resistant steel, the transmission strength and the rigidity are higher than those of the traditional speed reducer, the ball structure is adopted, the rolling friction transmission mode is adopted, the mechanical efficiency is improved, the ball structure is adopted, the larger input rotating speed can be borne, the use occasion is wider, the ball structure is adopted, the size of the speed reducer is reduced, the sun wheel and the planet wheel are combined for speed reduction, and the speed reduction effect is better.)

1. The utility model provides a novel ball worm speed reducer which characterized in that: the worm gear comprises a machine shell (1), a worm (2) and a worm wheel (3), wherein the worm (2) is sleeved on one side inside the machine shell (1), the worm (2) freely rotates inside the machine shell (1), a cavity is arranged inside the worm (2), a key groove is formed in the cavity, a sun wheel (11) is arranged on the rear section of the worm (2), a sun wheel shaft corresponds to a worm shaft in position, a worm clamping groove is formed in the rear section of the worm (2), the worm clamping groove corresponds to the sun wheel (11), teeth are arranged on the inner wall of the worm clamping groove, a planet wheel (12) is meshed outside the sun wheel (11), the planet wheel (12) is meshed with the teeth on the inner wall of the worm clamping groove, a roller bearing (13) is arranged in a planet wheel hole, a pin shaft (14) is arranged inside the roller bearing (13), and a pinion (15) is arranged on the sun wheel shaft, inside pinion (15) one end embedding sun gear axle, the other end outside of pinion (15) is fixed with shaft coupling (16), worm (2) anterior segment surface is equipped with the thread tooth, and worm (2) anterior segment is single-leaf hyperboloid body structure, worm (2) anterior segment middle part both ends still are equipped with the hole of extending that link up each other with the cavity, the inside squirrel cage (5) that is equipped with of cavity, the inside of squirrel cage (5) is equipped with the hole, and the hole that extends hole and squirrel cage (5) is interlinked, forms the return circuit, be equipped with a plurality of ball (6) on the thread tooth of worm (2) anterior segment, squirrel cage (5) inside also is equipped with a plurality of ball (6), worm (2) one side is equipped with worm wheel (3), worm wheel (3) cover is established inside casing (1), freely rotates inside casing (1).

2. The novel ball worm reducer according to claim 1, characterized in that: casing (1) and protecgulum (4) are respectively for the both ends of worm (2), be equipped with eighth bearing (28) between worm (2) and protecgulum (4), be equipped with sixth bearing (26) between worm (2) and casing (1).

3. The novel ball worm reducer according to claim 1, characterized in that: the planet wheel (12) is rotatably arranged on the planet carrier, and a seventh bearing (27) is arranged between the output shaft of the planet carrier and the worm (2).

4. The novel ball worm reducer according to claim 1, characterized in that: and a fifth bearing (25) is arranged between the sun wheel shaft and the worm (2), and a third oil seal (33) is arranged between the sun wheel shaft and the machine shell (1).

5. The novel ball worm reducer according to claim 1, characterized in that: the two ends of the worm wheel (3) are respectively provided with a first bottom plate (8) and a second bottom plate (9), a first bearing (21) and a first oil seal (31) are arranged between the worm wheel (3) and the first bottom plate (8), and a second bearing (22) and a second oil seal (32) are arranged between the worm wheel (3) and the second bottom plate (9).

6. The novel ball worm reducer according to claim 1, characterized in that: and a retainer ring (7) is arranged on one side of the squirrel cage (5) close to the front cover (4).

7. The novel ball worm reducer according to claim 1, characterized in that: the pinion (15) and the coupler (16) are fixed through screws.

8. The novel ball worm reducer according to claim 5, characterized in that: the first bottom plate (8) is fixedly connected with the machine shell (1) through screws, and the second bottom plate (9) is fixedly connected with the machine shell (1) through screws.

9. The novel ball worm reducer according to claim 1, characterized in that: and a plug is further arranged on the surface of the shell (1).

Technical Field

The invention relates to the field of speed reducers, in particular to a novel ball worm speed reducer.

Background

The reducer is an independent part consisting of gear drive, worm drive and gear-worm drive which are enclosed in a rigid casing and is commonly used as a speed reduction transmission device between a prime mover and a working machine. The function of matching the rotation speed and transmitting the torque between the prime mover and the working machine or the actuating mechanism is very extensive in modern machinery. The speed reducer is generally used for low-speed and large-torque transmission equipment, and the purpose of reducing speed is achieved by meshing a motor, an internal combustion engine or other high-speed running power with a large gear on an output shaft through a gear with a small number of teeth on an input shaft of the speed reducer.

The cam speed reducer in the prior art has the problems of high speed reduction cost and low strength, and the cylindrical worm and toroidal worm speed reducer in the prior art has the problems of low mechanical efficiency and short precision retention time.

Therefore, the prior art has yet to be developed.

Disclosure of Invention

In view of the above-mentioned shortcomings of the prior art, it is an object of the present invention to provide a novel ball worm reducer, which solves the problems of the prior art and has certain advantages.

To achieve the above and other related objects, the present invention provides a novel ball worm reducer, comprising: the worm gear comprises a shell, a worm and a worm wheel, wherein one side in the shell is sleeved with the worm, the worm freely rotates in the shell, a cavity is arranged in the worm, a key groove is arranged in the cavity, the rear section of the worm is provided with a sun wheel, a sun wheel shaft corresponds to the position of the worm shaft, a worm clamping groove is arranged in the rear section of the worm, the position of the worm clamping groove corresponds to the position of the sun wheel, teeth are arranged on the inner wall of the worm clamping groove, a planet wheel is externally meshed with the sun wheel and is meshed with the teeth on the inner wall of the worm clamping groove, a roller bearing is arranged in the hole of the planet wheel, a pin shaft is arranged in the roller bearing, a pinion is arranged on the sun wheel shaft, one end of the pinion is embedded in the sun wheel shaft, a coupler is fixed on the outer side of the other end of the pinion, the outer surface of the front section of the worm is provided with threaded teeth, and the front section of the worm is of a single-blade structure, the improved squirrel-cage mouse cage is characterized in that extension holes communicated with the cavity are further formed in two ends of the middle of the front section of the worm, a squirrel cage is arranged in the cavity, holes are formed in the squirrel cage and communicated with the extension holes of the squirrel cage to form a loop, a plurality of balls are arranged on thread teeth of the front section of the worm, a plurality of balls are also arranged in the squirrel cage, a worm wheel is arranged on one side of the worm, and the worm wheel is sleeved inside the shell and can freely rotate inside the shell.

In an embodiment of the present invention, two ends of the worm are respectively a casing and a front cover, an eighth bearing is disposed between the worm and the front cover, and a sixth bearing is disposed between the worm and the casing.

In an embodiment of the invention, the planet gear is rotatably disposed on the planet carrier, and a seventh bearing is disposed between the output shaft of the planet carrier and the worm.

In an embodiment of the present invention, a fifth bearing is disposed between the sun gear shaft and the worm, and a third oil seal is disposed between the sun gear shaft and the casing.

In an embodiment of the present invention, a first bottom plate and a second bottom plate are respectively disposed at two ends of the worm wheel, a first bearing and a first oil seal are disposed between the worm wheel and the first bottom plate, and a second bearing and a second oil seal are disposed between the worm wheel and the second bottom plate.

In an embodiment of the invention, a retainer ring is arranged on one side of the squirrel cage close to the front cover.

In an embodiment of the present invention, the pinion and the coupler are fixed by screws.

In an embodiment of the invention, the first bottom plate is fixedly connected with the casing through screws, and the second bottom plate is fixedly connected with the casing through screws.

In an embodiment of the invention, a plug is further disposed on the surface of the casing.

As described above, the novel ball worm reducer according to the present invention has the following advantageous effects: according to the novel ball worm speed reducer provided by the invention, the balls, the worm and the worm wheel are all made of high-strength wear-resistant steel, the transmission strength and the rigidity are higher than those of the traditional speed reducer, the ball structure is adopted, the rolling friction transmission mode is adopted, the mechanical efficiency is improved, the ball structure is adopted, the larger input rotating speed can be borne, the use occasion is wider, the ball structure is adopted, the size of the speed reducer is reduced, the sun wheel and the planet wheel are combined for speed reduction, and the speed reduction effect is better.

Drawings

Fig. 1 is a perspective view of a novel ball worm reducer disclosed in an embodiment of the invention.

Fig. 2 is a schematic side view of a novel ball worm reducer disclosed in the embodiment of the invention.

Fig. 3 is a B-B sectional view showing a side view of a novel ball worm reducer disclosed in an embodiment of the present invention.

Fig. 4 is a schematic front view of a worm and a part of a housing of the novel ball worm reducer disclosed in the embodiment of the invention.

Fig. 5 is a sectional view of the worm and part of the housing of the novel ball-screw speed reducer, which is disclosed in the embodiment of the invention.

Fig. 6 is a B-B sectional view of a worm and a part of a housing of the novel ball worm reducer disclosed in the embodiment of the invention.

Fig. 7 is a C-C sectional view of a worm and a part of a housing of the novel ball worm reducer disclosed in the embodiment of the invention.

Fig. 8 is a schematic side view illustrating a worm wheel, a first base plate and a second base plate of the novel ball worm speed reducer disclosed in the embodiment of the invention.

Fig. 9 is a cross-sectional view of the worm wheel, the first base plate and the second base plate of the novel ball worm speed reducer, which is disclosed in the embodiment of the invention.

Description of the element reference numerals

1 case

2 Worm

3 worm wheel

4 front cover

5 mouse cage

6 ball

7 check ring

8 first base plate

9 second base plate

11 sun gear

12 planet wheel

13 roller bearing

14 pin shaft

15 pinion

16 shaft coupling

21 first bearing

22 second bearing

25 fifth bearing

26 sixth bearing

27 seventh bearing

28 eighth bearing

31 first oil seal

32 second oil seal

33 third oil seal

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

Please refer to fig. 1 to 9. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.

Referring to fig. 1 to 9, the present invention provides a novel ball worm reducer, including: the worm gear comprises a machine shell 1, a worm 2 and a worm wheel 3, wherein one side inside the machine shell 1 is sleeved with the worm 2, the worm 2 freely rotates inside the machine shell 1, a cavity is arranged inside the worm 2, a key groove is arranged in the cavity, the rear section of the worm 2 is provided with a sun wheel 11, the position of the sun wheel shaft corresponds to that of the worm shaft, the rear section of the worm 2 is provided with a worm clamping groove, the position of the worm clamping groove corresponds to that of the sun wheel 11, the inner wall of the worm clamping groove is provided with teeth, the sun wheel 11 is externally meshed with a planet wheel 12, the planet wheel 12 is meshed with the teeth on the inner wall of the worm clamping groove, a roller bearing is arranged in the planet wheel hole, a pin shaft 14 is arranged inside the roller bearing, the sun wheel shaft is provided with a pinion 15, one end of the pinion 15 is embedded into the sun wheel shaft, the outer side of the other end of the pinion 15 is fixed with a coupler 16, and the outer surface of the front section of the worm 2 is provided with thread teeth, 2 anterior segments of worm are the hyperboloid body structure of single leaf, 2 anterior segment middle part both ends of worm still are equipped with the hole that extends that link up each other with the cavity, the inside squirrel cage 5 that is equipped with of cavity, the inside of squirrel cage 5 is equipped with the hole, and the hole that extends hole and squirrel cage 5 is mutually linked together, forms the return circuit, be equipped with a plurality of balls 6 on the thread tooth of 2 anterior segments of worm, 5 inside also are equipped with a plurality of balls 6 of squirrel cage, 2 one sides of worm are equipped with worm wheel 3, 3 covers of worm wheel are established inside casing 1, at the inside free rotation of casing 1.

Specifically, the two ends of the worm 2 are respectively the casing 1 and the front cover 4, an eighth bearing 28 is arranged between the worm 2 and the front cover 4, and a sixth bearing 26 is arranged between the worm 2 and the casing 1.

Specifically, the planet gear 12 is rotatably disposed on the planet carrier, and a seventh bearing 27 is disposed between the output shaft of the planet carrier and the worm 2.

Specifically, a fifth bearing 25 is arranged between the sun gear shaft and the worm 2, and a third oil seal 33 is arranged between the sun gear shaft and the machine shell 1.

Specifically, the both ends of worm wheel 3 are provided with first bottom plate 8 and second bottom plate 9 respectively, be equipped with first bearing 21 and first oil blanket 31 between worm wheel 3 and the first bottom plate 8, be equipped with second bearing 22 and second oil blanket 32 between worm wheel 3 and the second bottom plate 9.

Specifically, a retainer ring 7 is arranged on one side of the squirrel cage 5 close to the front cover 4.

Specifically, the pinion 15 and the coupling 16 are fixed by screws.

Specifically, the first bottom plate 8 is fixedly connected with the casing 1 through screws, and the second bottom plate 9 is fixedly connected with the casing 1 through screws.

Specifically, a plug is further arranged on the surface of the casing 1.

The invention relates to a novel ball worm reducer, during installation, a worm wheel 3 is arranged in a machine box, a seventh bearing 27 is arranged on an output shaft of a planet carrier, a sun wheel 11 is arranged in the middle of a worm clamping groove, the position of the sun wheel shaft corresponds to that of the worm shaft, a small amount of lubricating grease is coated on the inner wall of a planet wheel hole, a roller bearing is arranged in the planet wheel hole, a pin shaft 14 is inserted into the roller bearing, 3 planet wheels 12 are arranged, 3 roller bearings are arranged, 3 pin shafts are arranged, the assembled planet wheels 12 are arranged in the worm clamping groove, the planet wheels 12 are meshed with teeth on the inner wall of the worm clamping groove and are meshed with the sun wheel 11, the assembled worm 2 is arranged in a machine shell 1, a sixth bearing 26 is arranged at the rear end of the worm 2, a fifth bearing 25 is arranged on the sun wheel shaft, a third oil seal 33 is arranged on the fifth bearing 25, and the third oil seal is fixed through screws, embedding one end of a pinion 15 into a sun wheel shaft, sleeving a coupling 16 at the other end of the pinion 15, installing a first bearing 21 and a first oil seal 31 on a first base plate 8, buckling one end of a worm wheel 3, fixing the first bearing on a machine shell 1 through screws, installing a second bearing 22 and a second oil seal 32 on a second base plate 9, buckling the other end of the worm wheel 3, fixing the second bearing on the machine shell 1 through screws, then filling balls 6, wherein the number of the balls 6 is calculated in advance, blocking extension holes in the worm 2 by using a jig to prevent the balls 6 from falling off, installing the balls 6 while rotating the worm 2 to enable the balls 6 to fill thread teeth on the outer wall of the worm 2 and the extension holes in the worm 2, then placing a squirrel cage 5 into a cavity, placing the calculated number of the balls 6 into the squirrel cage 5, installing a check ring 7 at one end of the squirrel cage 5 close to a front cover 4, and then, the eighth bearing 28 is arranged at the front end of the worm 2, the front cover 4 is arranged, and the plug is arranged, so that the installation is finished.

During specific implementation, the pinion 15 is connected with the input shaft, the input shaft drives the pinion 15 to rotate, the pinion 5 drives the sun gear 11 to rotate, speed reduction is achieved through combination of the sun gear 11 and the planet gear 12, the output shaft of the planet carrier outputs and drives the worm 2 to rotate, the reduced rotating speed is output, when the worm 2 rotates, the ball 6 rolls back and forth between a loop formed by the worm 2 and the squirrel cage 5, meanwhile, the worm wheel 3 is driven to rotate, and the worm wheel 3 outputs, so that a continuous or intermittent working cycle is completed.

In conclusion, according to the novel ball-worm speed reducer provided by the invention, the balls, the worm and the worm wheel are made of high-strength wear-resistant steel, the transmission strength and the rigidity are higher than those of the traditional speed reducer, the ball structure and the rolling friction transmission mode are adopted, the mechanical efficiency is improved, the ball structure can bear higher input rotating speed, the application occasions are wider, the ball structure is adopted, the size of the speed reducer is reduced, and the sun wheel and the planet wheel are combined for speed reduction, so that the speed reduction effect is better.

Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.