CN212318691U - Ball worm driving gyrator - Google Patents
Ball worm driving gyrator Download PDFInfo
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- CN212318691U CN212318691U CN202022265132.0U CN202022265132U CN212318691U CN 212318691 U CN212318691 U CN 212318691U CN 202022265132 U CN202022265132 U CN 202022265132U CN 212318691 U CN212318691 U CN 212318691U
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Abstract
The utility model belongs to the technical field of rotary driver equipment, and relates to a ball worm driving gyrator, which comprises an outer ring shell, wherein the inner wall of the outer ring shell is provided with a roller groove, and a spherical indexing inner ring is arranged in the outer ring shell in a rotating fit manner; the ball-rolling mill is characterized in that a plurality of ball sockets are arranged on the circumferential surface of the spherical indexing inner ring at equal intervals, each ball socket is internally provided with a ball in a matched mode, one radial end of each ball is arranged in each ball socket, the other radial end of each ball is arranged in each roller groove, the spherical indexing inner ring is in limited connection with the outer ring shell in the axial direction through the balls, the outer ring shell is provided with ball inlet holes, and the ball inlet holes are communicated with the roller grooves. The gyrator can combine the transmission torque with the full-circle gyration motion, further has fewer combined parts, and can be effectively applied to severe application occasions such as small equipment volume, light weight, high precision, large reduction ratio, torque transmission requirement and the like.
Description
Technical Field
The utility model belongs to the technical field of gyration driver equipment, a ball worm drive gyrator is related to.
Background
The traditional and common full-circle rotary driver is a mature technical application, the power transmission and the circular rotation of torque can be realized only by compactly assembling parts such as a worm wheel, a worm, a raceway, a ball, an inner ring and an outer ring according to a certain precision requirement, although the structure is relatively compact and a transmission chain is short, the number of parts is large, the related processing equipment is large, and a matching supply chain is also large.
Disclosure of Invention
The utility model provides a to above-mentioned problem, a ball worm drive gyrator is provided, this gyrator can merge transmission moment of torsion and all round rotary motion, and then makes the built-up part less, can effectively be applied to equipment small, light in weight, and the precision is high, the reduction ratio is big and need transmit harsh application scenario such as moment of torsion.
According to the technical scheme of the utility model: a ball worm drive gyrator characterized in that: the roller mill comprises an outer ring shell, wherein a roller groove is formed in the inner wall of the outer ring shell, and a spherical indexing inner ring is arranged in the outer ring shell in a rotating fit manner;
the spherical indexing inner ring is axially connected with the outer ring shell in a limiting mode through the balls, the outer ring shell is provided with ball inlet holes, and the ball inlet holes are communicated with the roller grooves;
the outer ring shell is further rotatably provided with a worm, the surface of the worm is provided with a circle of arc-shaped groove portions, the arc-shaped groove portions are spirally provided with power grooves, the power grooves are matched with the balls, and the worm rotates to push the spherical indexing inner ring to rotate through the balls.
As a further improvement of the utility model, a first oil injection hole is arranged on the outer ring shell, the first oil injection hole lubricates the oil fed by the ball bearing, and a first oil injection nozzle is arranged at the first oil injection hole in a matching way; and a second oil injection hole is further formed in the outer ring shell and used for lubricating oil inlet of the worm, and a second oil injection nozzle is arranged in a matching manner in the second oil injection hole.
As a further improvement of the utility model, the power groove is the helicla flute, and power groove one end forms the ball entry, and the other end forms the ball export.
As a further improvement, the surface of the worm is provided with an arc-shaped groove, and the power groove is spirally arranged on the arc-shaped groove.
As a further improvement of the utility model, two axial ends of the worm are rotatably supported in the outer ring shell through a tapered roller bearing respectively, the input end of the worm penetrates out of the input end cover, and the inner side of the input end cover is provided with an adjusting gasket;
the other end of the worm is in threaded connection with an adjusting nut, a sealing ring is arranged on the worm corresponding to the outer side of the adjusting nut, the outer ring of the sealing ring is tightly supported in a worm cavity of the outer ring shell, and the sealing ring is limited and fixed through a dust cover.
As a further improvement of the utility model, the shield is connected on the outer lane casing through first screw fastening, and the input end cover passes through second screw fastening and connects on the outer lane casing.
As the utility model discloses a further improvement, axial one end between outer lane casing and the sphere graduation inner circle is sealed through first sealing strip, and the axial other end between outer lane casing and the sphere graduation inner circle passes through the second sealing strip and seals.
The technical effects of the utility model reside in that: the utility model adopts the variable pitch spherical enveloping worm, the transmission rotation precision is high, and no clearance exists; the full-circle indexing rotation and the rolling bearing are combined for use, the assembly is simple, and the transmission chain is shorter; the internal spherical indexing structure and the steel ball of the rotary driver replace the traditional worm gear form, and the self-locking performance is high; the raceway of the rotary driver is matched with a steel ball fixed on the inner spherical indexing structure to form a rolling bearing; the rotary driver is simple and reliable in structure and free of maintenance.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a sectional view taken along line a-a of fig. 1.
Fig. 3 is a front view of the spherical indexing inner race.
Fig. 4 is a sectional view taken along line B-B of fig. 3.
Fig. 5 is a top view of fig. 3.
Fig. 6 is a cross-sectional view of the worm.
Fig. 7 is a front view of the worm.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings.
In fig. 1 to 7, the oil filling device comprises an outer ring 1, a ball 2, a spherical indexing inner ring 3, a first oil filling nozzle 4, a sealing ring 5, a dust cover 6, a tapered roller bearing 7, an adjusting screw 8, a first screw 9, a positioning pin 10, an assembling pin 11, a second screw 12, an input end cover 13, a worm 14, an adjusting gasket 15, an O-shaped sealing ring 16, a second oil filling nozzle 17, a first sealing strip 18, a second sealing strip 19 and the like.
As shown in fig. 1-7, the utility model relates to a ball worm drive gyrator, including outer lane casing 1, the inner wall of outer lane casing 1 sets up roller slot 1-1, and the interior normal running fit of outer lane casing 1 sets up sphere graduation inner circle 3.
The spherical indexing inner ring is characterized in that a plurality of ball sockets 3-1 are arranged on the circumferential surface of the spherical indexing inner ring 3 at equal intervals, a ball 2 is arranged in each ball socket 3-1 in a matched mode, one radial end of each ball 2 is arranged in each ball socket 3-1, the other radial end of each ball 2 is arranged in each roller groove 1-1, the spherical indexing inner ring 3 is connected with the outer ring shell 1 in a limiting mode through the balls 2 in the axial direction, a ball inlet hole is formed in the outer ring shell 1 and communicated with the roller grooves 1-1; during assembly, the spherical indexing inner circle 3 is arranged in the outer ring 1 in a matched mode, then the balls 2 are sequentially arranged in the ball sockets 3-1 through the ball inlet holes, the spherical indexing inner circle 3 is rotated according to installation requirements during installation, installation can be completed, the balls 2 are completely installed, the assembling pins 11 and the positioning pins 10 are used for fixing the balls in the ball inlet holes, and the balls 2 are placed to fall off.
After the ball 2 is installed, the axial limiting of the outer ring shell 1 and the spherical indexing inner ring 3 is realized.
The outer ring shell 1 is further provided with a worm 14 in a rotating mode, the surface of the worm 14 is provided with a circle of arc-shaped groove portions, the arc-shaped groove portions are spirally provided with power grooves 14-1, and the power grooves 14-1 are matched with the balls 2, so that the worm 14 rotates and pushes the spherical indexing inner ring 3 to rotate through the balls 2. The utility model discloses a ball 2 still plays the effect of bearing retainer, and when worm 14 drive ball 2 meshing motion, ball 2 rolls rotatoryly in the roller groove 1-1 of outer lane casing 1, forms slewing bearing effect.
A first oil filling hole is formed in the outer ring shell 1, oil is fed into the ball 2 for lubrication through the first oil filling hole, and a first oil filling nozzle 4 is arranged in the first oil filling hole in a matched mode; and a second oil injection hole is further formed in the outer ring shell 1, oil is fed into the worm 14 through the second oil injection hole for lubrication, and a second oil injection nozzle 17 is arranged in the second oil injection hole in a matched mode. The first oil nozzle 4 and the second oil nozzle 17 facilitate the addition of lubricating grease at the time of installation and use maintenance.
The power groove 14-1 is a spiral groove, and one end of the power groove 14-1 forms a ball inlet and the other end forms a ball outlet.
The surface of the worm 14 is provided with an arc-shaped groove, and the power groove 14-1 is spirally arranged on the arc-shaped groove.
Two axial ends of the worm 14 are rotatably supported in the outer ring shell 1 through a tapered roller bearing 7, the input end of the worm 14 penetrates out of the input end cover 13, and an adjusting gasket 15 is arranged on the inner side of the input end cover 13.
The other end of the worm 14 is in threaded connection with an adjusting nut 8, a sealing ring 5 is arranged on the worm 14 corresponding to the outer side of the adjusting nut 8, the outer ring of the sealing ring 5 is tightly supported in a worm cavity of the outer ring shell 1, and the sealing ring 5 is limited and fixed through a dustproof cover 6. The non-input end of the worm 14 is respectively sealed with the outer ring shell 1 and the worm 14 by a sealing ring 5, and is provided with a dustproof cover 6 to realize the dustproof and waterproof function, and the dustproof cover 6 is fixed on the outer ring shell 1 by a first screw 9.
By adjusting the adjusting nut 8, the meshing clearance of the balls 2 on the spherical indexing inner ring 3 can be adjusted, so that the power groove 14-1 of the worm 14 is in close contact with the balls 2. The influence on the indexing precision due to the contact clearance is prevented, and the adjusting gasket 15 and the input end cover 13 are fixed on the outer ring shell 1 through the second screw 12, so that the axial movement of the worm 14 is prevented.
The dust cover 6 is fastened and connected to the outer ring housing 1 by first screws 9, and the input end cover 13 is fastened and connected to the outer ring housing 1 by second screws 12.
The axial one end between outer lane casing 1 and sphere graduation inner circle 3 is sealed through first sealing strip 18, and the axial other end between outer lane casing 1 and sphere graduation inner circle 3 is sealed through second sealing strip 19, and in order to further prevent the oil leak, input end department installs O type sealing washer 16 by input end cover 13, and O type sealing washer 16 realizes sealedly with the chamfer cooperation of outer lane casing 1.
Because the utility model discloses an index reduction relies on the meshing envelope of ball 2 and worm 14, and for making the transmission moment of torsion enough, let worm 14 can more contact ball 2 at the during operation, so need make the anchor ring with the spiral lead and the flank of tooth form of worm 14. The worm 14 in the utility model adopts a variable pitch spherical enveloping worm.
The utility model discloses the product is owing to reduced worm wheel or gear in the traditional meaning than traditional worm gear or gear revolve driver to combine antifriction bearing and worm wheel, so part quantity reduces, and cost reduction, the structure is retrencied, and volume and weight are littleer and light, more are suitable for the occasion that requires harshness to this aspect. It can be understood that the output end face of the spherical indexing inner ring 3 is uniformly provided with a plurality of connecting holes so as to be connected with an external component.
The utility model discloses a theory of operation: the variable-pitch spherical enveloping worm 14 rotates to push the balls 2 on the spherical indexing inner ring 3, so that the spherical indexing inner ring 3 generates rotary motion; the outer ring shell 1 and the spherical indexing inner ring 3 are also combined together by the balls 2, and the retainer of the original rolling bearing is replaced by the spherical indexing inner ring 3 to form the effect of the rolling bearing; in addition, the quantity of the balls 2 uniformly distributed on the spherical indexing inner ring 3 generates a deceleration effect when being meshed with the variable-pitch spherical envelope worm 14.
Claims (7)
1. A ball worm drive gyrator characterized in that: the roller mill comprises an outer ring shell (1), wherein a roller groove (1-1) is formed in the inner wall of the outer ring shell (1), and a spherical indexing inner ring (3) is arranged in the outer ring shell (1) in a rotating fit manner;
a plurality of ball sockets (3-1) are arranged on the circumferential surface of the spherical indexing inner ring (3) at equal intervals, a ball (2) is arranged in each ball socket (3-1) in a matched mode, one radial end of each ball (2) is arranged in each ball socket (3-1), the other radial end of each ball (2) is arranged in each roller groove (1-1), the spherical indexing inner ring (3) is in limited connection with the outer ring shell (1) in the axial direction through the balls (2), a ball inlet hole is formed in the outer ring shell (1), and the ball inlet hole is communicated with the roller grooves (1-1);
the outer ring shell (1) is further provided with a worm (14) in a rotating mode, the surface of the worm (14) is provided with a circle of arc-shaped groove portions, the arc-shaped groove portions are spirally provided with power grooves (14-1), the power grooves (14-1) are matched with the balls (2), and the worm (14) rotates to push the spherical indexing inner ring (3) to rotate through the balls (2).
2. The ball worm drive gyrator of claim 1, wherein: a first oil filling hole is formed in the outer ring shell (1), oil is fed into the ball (2) and lubricated by the first oil filling hole, and a first oil filling nozzle (4) is arranged in the first oil filling hole in a matched mode; and a second oil injection hole is further formed in the outer ring shell (1), oil is fed into the worm (14) and is lubricated, and a second oil injection nozzle (17) is arranged in a matching mode of the second oil injection hole.
3. The ball worm drive gyrator of claim 1, wherein: the power groove (14-1) is a spiral groove, one end of the power groove (14-1) forms a ball inlet, and the other end of the power groove forms a ball outlet.
4. The ball worm drive gyrator of claim 1, wherein: the surface of the worm (14) is provided with an arc-shaped groove, and the power groove (14-1) is spirally arranged on the arc-shaped groove.
5. The ball worm drive gyrator of claim 1, wherein: two axial ends of the worm (14) are rotatably supported in the outer ring shell (1) through a tapered roller bearing (7), the input end of the worm (14) penetrates out of the input end cover (13), and an adjusting gasket (15) is arranged on the inner side of the input end cover (13);
the other end of the worm (14) is in threaded connection with the adjusting nut (8), a sealing ring (5) is arranged on the worm (14) corresponding to the outer side of the adjusting nut (8), the outer ring of the sealing ring (5) is tightly supported in a worm cavity of the outer ring shell (1), and the sealing ring (5) is limited and fixed through the dustproof cover (6).
6. The ball worm drive gyrator of claim 5, wherein: the dustproof cover (6) is fixedly connected to the outer ring shell (1) through a first screw (9), and the input end cover (13) is fixedly connected to the outer ring shell (1) through a second screw (12).
7. The ball worm drive gyrator of claim 1, wherein: one axial end between the outer ring shell (1) and the spherical indexing inner ring (3) is sealed through a first sealing strip (18), and the other axial end between the outer ring shell (1) and the spherical indexing inner ring (3) is sealed through a second sealing strip (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022265132.0U CN212318691U (en) | 2020-10-12 | 2020-10-12 | Ball worm driving gyrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022265132.0U CN212318691U (en) | 2020-10-12 | 2020-10-12 | Ball worm driving gyrator |
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| Publication Number | Publication Date |
|---|---|
| CN212318691U true CN212318691U (en) | 2021-01-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022265132.0U Active CN212318691U (en) | 2020-10-12 | 2020-10-12 | Ball worm driving gyrator |
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| CN (1) | CN212318691U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112843575A (en) * | 2021-01-18 | 2021-05-28 | 高邮市盛鑫消防科技有限公司 | Fire water monitor body and fire water monitor |
-
2020
- 2020-10-12 CN CN202022265132.0U patent/CN212318691U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112843575A (en) * | 2021-01-18 | 2021-05-28 | 高邮市盛鑫消防科技有限公司 | Fire water monitor body and fire water monitor |
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