CN219673214U - Combined angle swinging mechanism of narrow space gear pair lead screw pair - Google Patents
Combined angle swinging mechanism of narrow space gear pair lead screw pair Download PDFInfo
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- CN219673214U CN219673214U CN202320329129.1U CN202320329129U CN219673214U CN 219673214 U CN219673214 U CN 219673214U CN 202320329129 U CN202320329129 U CN 202320329129U CN 219673214 U CN219673214 U CN 219673214U
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- ball screw
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- shifting fork
- pair
- rotating shaft
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- 230000033001 locomotion Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 1
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Abstract
The utility model discloses a combined angle swinging mechanism of a gear pair and a screw pair in a narrow space, which comprises a base, a ball screw pair, a shifting fork and a rotating shaft which swings synchronously with the shifting fork, wherein a motor is arranged on the base and is in transmission connection with the ball screw pair through the gear pair; the ball screw pair comprises a ball screw arranged on the base in a rotating mode and a ball nut sleeved on the ball screw and capable of moving along the ball screw, the shifting fork comprises a straight rod portion and two shifting fork portions arranged at the end portion of the straight rod portion, the two shifting fork portions are in rotating connection with the ball nut, the straight rod portion penetrates through a rotating shaft, and the ball nut drives the rotating shaft to swing through the shifting fork. The utility model has simple structure, the motor is connected with the ball screw pair in a transmission way through the gear pair, and meanwhile, the ball screw pair is provided with the shifting fork, so that the ball screw pair can drive the shifting fork to swing under the power action of the motor, and further, the rotating shaft can be driven to swing, and the structure is compact and the transmission efficiency is high.
Description
Technical Field
The utility model belongs to the technical field of direction control, and particularly relates to a narrow space gear pair lead screw pair combined angle swinging mechanism.
Background
At present, the rotation and swing of the load are realized by worm and gear transmission, for example, a swing mechanism driven by worm and gear in Chinese patent CN202210723448.0 comprises a motor 201, a worm 202, a worm gear 203 and a stop block 204, and the swing of an X-axis frame is realized by the worm and the stop block 204, but the worm and gear is driven in a vertical space, so that the occupied vertical space is large; in addition, the worm gear drives the stop block 204 to slide along the X-axis frame, so that the X-axis frame is driven to swing, but the friction is large, and the transmission efficiency is low.
Therefore, a combined angle swing mechanism of a gear pair and a screw pair in a narrow space, which is simple in structure and reasonable in design, is urgently needed to meet the requirement of swinging in a narrow space angle, and is high in transmission efficiency.
Disclosure of Invention
The utility model aims to solve the technical problems in the prior art, and provides the narrow space gear pair and lead screw pair combined angle swinging mechanism which is simple in structure, reasonable in design, compact in structure and high in transmission efficiency, and the motor is connected with the ball screw pair in a transmission way through the gear pair, and meanwhile, the ball screw pair is provided with the shifting fork, so that the ball screw pair can drive the shifting fork to swing under the power action of the motor, and further the rotating shaft can be driven to swing.
In order to solve the technical problems, the utility model adopts the following technical scheme: a narrow space gear pair lead screw pair combination angle swing mechanism which is characterized in that: the device comprises a machine base, a ball screw pair arranged on the machine base, a shifting fork hinged with the ball screw pair and a rotating shaft swinging synchronously with the shifting fork, wherein a motor is arranged on the machine base and is in transmission connection with the ball screw pair through a gear pair;
the ball screw pair comprises a ball screw arranged on the machine base in a rotating mode and a ball nut which is sleeved on the ball screw and can move along the ball screw, the shifting fork comprises a straight rod portion and two shifting fork portions arranged at the end portions of the straight rod portion, the two shifting fork portions are hinged to the ball nut, the straight rod portion penetrates through a rotating shaft and is connected, and the ball nut drives the rotating shaft to swing through the shifting fork.
The above-mentioned narrow and small space gear pair lead screw pair combination angle swing mechanism, its characterized in that: the gear pair comprises a driving gear arranged on an output shaft of the motor and a driven gear meshed with the driving gear; the output shaft of the motor penetrates through the base, one end of the ball screw penetrates through the base, and the driven gear is arranged at one end of the ball screw.
The above-mentioned narrow and small space gear pair lead screw pair combination angle swing mechanism, its characterized in that: the ball nut comprises a nut part sleeved on the ball screw and two convex rods symmetrically arranged on the nut part, and an inner bearing for installing the convex rods is arranged in the shifting fork part in a penetrating mode.
The above-mentioned narrow and small space gear pair lead screw pair combination angle swing mechanism, its characterized in that: the bottom of the rotating shaft is rotatably mounted on the machine base through a bottom bearing, a mounting hole for the straight rod part to pass through is formed in the rotating shaft, a lock nut is arranged at the end part of the straight rod part, which passes out of the rotating shaft, and the rotating shaft and the straight rod part are vertically arranged initially.
The above-mentioned narrow and small space gear pair lead screw pair combination angle swing mechanism, its characterized in that: the potentiometer is characterized in that a potentiometer seat is arranged on the base and comprises a base portion arranged on the base and a connecting portion integrally formed with the base portion, the rotating shaft penetrates through the connecting portion, a potentiometer is arranged in the base portion in a penetrating mode, a first positioning gear is sleeved on the rotating shaft, a second positioning gear is sleeved on the potentiometer, and the second positioning gear is meshed with the first positioning gear.
The above-mentioned narrow and small space gear pair lead screw pair combination angle swing mechanism, its characterized in that: the machine seat is provided with a protection cover for accommodating the driving gear and the driving gear.
The above-mentioned narrow and small space gear pair lead screw pair combination angle swing mechanism, its characterized in that: the machine seat is provided with a guide rod which is arranged in parallel with the ball screw, the nut part is provided with a guide groove, and the guide rod is arranged in the guide groove in a penetrating way.
Compared with the prior art, the utility model has the following advantages:
1. the utility model has simple structure, is horizontally arranged through the motor, the ball screw pair and the rotating shaft, has compact whole, reduces the vertical space occupied, and is suitable for a narrow space.
2. The shifting fork comprises a straight rod part and a shifting fork part, and is used for hinging the two shifting fork parts with the ball screw, wherein the straight rod part is connected with the rotating shaft, so that the rotating shaft is driven to swing through the shifting fork when the ball screw moves horizontally along the ball screw.
3. The utility model provides a gear pair, which is used for connecting a motor with a ball screw pair in a transmission way so as to convert the rotary motion of the motor into horizontal linear motion of the ball screw pair; the horizontal linear movement of the ball screw pair is converted into the swing of the rotating shaft through the shifting fork.
4. The gear pair and the ball screw pair are arranged to be purely rolling, and friction loss is small, so that the transmission efficiency of the gear pair and the ball screw is higher than that of a worm gear.
In summary, the utility model has simple structure and reasonable design, the motor is in transmission connection with the ball screw pair through the gear pair, and meanwhile, the ball screw pair is provided with the shifting fork, so that the ball screw pair can drive the shifting fork to swing under the power action of the motor, and further, the rotating shaft can be driven to swing, and the structure is compact.
The technical scheme of the utility model is further described in detail through the drawings and the embodiments.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a top view of the protective cover of fig. 1 with the protective cover removed.
Fig. 3 is a D-D cross-sectional view of fig. 2.
Fig. 4 is a C-C cross-sectional view of fig. 2.
Fig. 5 is a sectional view of B-B of fig. 1.
Reference numerals illustrate:
1-a stand; 2-an electric motor; 3-a driving gear;
4-a driven gear; 5-ball screw; 6-ball nut;
6-1, a nut part; 6-2, a convex rod; 6-3-guiding groove;
7-shifting fork; 7-1, a straight rod part; 7-2-a shifting fork part;
8-a rotating shaft; 9-potentiometer;
10-a first positioning gear; 11-a second positioning gear; 12-a guide rod;
13-a bearing; 14-a bottom bearing; 15-an inner bearing;
16-potentiometer base; 16-1-a base portion; 16-2-connecting part;
17-a protective cover.
Detailed Description
As shown in fig. 1 to 3, the utility model comprises a machine base 1, a ball screw pair arranged on the machine base 1, a shifting fork 7 hinged with the ball screw pair, and a rotating shaft 8 swinging synchronously with the shifting fork 7, wherein a motor 2 is arranged on the machine base 1, and the motor 2 is in transmission connection with the ball screw pair through a gear pair;
the ball screw pair comprises a ball screw 5 rotatably arranged on the machine base 1 and a ball nut 6 which is sleeved on the ball screw 5 and can move along the ball screw 5, the shifting fork 7 comprises a straight rod part 7-1 and two shifting fork parts 7-2 arranged at the end parts of the straight rod part 7-1, the two shifting fork parts 7-2 are hinged with the ball nut 6, the straight rod part 7-1 penetrates through a rotating shaft 8 and is connected, and the ball nut 6 drives the rotating shaft 8 to swing through the shifting fork 7.
In the present embodiment, the gear pair includes a driving gear 3 provided on an output shaft of the motor 2 and a driven gear 4 meshed with the driving gear 3; the output shaft of the motor 2 passes through the housing 1, one end of the ball screw 5 passes through the housing 1, and the driven gear 4 is mounted at one end of the ball screw 5.
In this embodiment, the ball nut 6 includes a nut portion 6-1 sleeved on the ball screw 5 and two protruding rods 6-2 symmetrically disposed on the nut portion 6-1, and an inner bearing 15 for mounting the protruding rods 6-2 is disposed in the fork portion 7-2 in a penetrating manner.
In this embodiment, the bottom of the rotating shaft 8 is rotatably mounted on the stand 1 through the bottom bearing 14, a mounting hole for the straight rod 7-1 to pass through is provided in the rotating shaft 8, a lock nut is provided at the end of the straight rod 7-1 passing through the rotating shaft 8, and the rotating shaft 8 and the straight rod 7-1 are initially vertically arranged.
As shown in fig. 4, in this embodiment, the base 1 is provided with a potentiometer seat 16, the potentiometer seat 16 includes a base portion 16-1 disposed on the base 1 and a connection portion 16-2 integrally formed with the base portion 16-1, the rotating shaft 8 passes through the connection portion 16-2, the potentiometer 9 is disposed in the base portion 16-1 in a penetrating manner, the rotating shaft 8 is sleeved with a first positioning gear 10, the potentiometer 9 is sleeved with a second positioning gear 11, and the second positioning gear 11 is meshed with the first positioning gear 10.
In this embodiment, the housing 1 is provided with a protection cover 17 for accommodating the driving gear 3 and the driving gear 3.
In this embodiment, as shown in fig. 5, a guide rod 12 arranged parallel to the ball screw 5 is provided on the base 1, a guide groove 6-3 is provided on the nut portion 6-1, and the guide rod 12 is inserted into the guide groove 6-3.
In this embodiment, the guide rod 12 is fixed on the base 1, passes through the ball nut 6, and is in clearance fit with the base. The ball screw 5 rotates, and the ball nut 6 tends to rotate, but is limited by the guide rod 12 to move only in the axial direction.
In this embodiment, the motor 2 and the ball screw 5 are both mounted on the machine base 1, so as to ensure that the gear pair is meshed correctly. The end faces of the driving gear 3 and the driven gear 4 are flush, and the driving gear and the driven gear are fixed on respective shafts by pin shafts.
In this embodiment, in real time use, one end of the ball screw 5 and a portion near the other end of the ball screw 5 are rotatably mounted on the housing 1 through bearings 13.
In this embodiment, the motor 2 is a servo motor, so that an accurate swing angle can be realized, and the controllability is strong.
In the embodiment, the edge of the stand 1 is arc-shaped, and is suitable for being mounted on a circular carrier, so that the space size is saved to the greatest extent.
In this embodiment, in the process of swinging the rotating shaft 8, the rotating shaft 8 drives the potentiometer 9 to rotate through the first positioning gear 10 and the second positioning gear 11, and the potentiometer 9 realizes the swinging angle measurement.
In this embodiment, the potentiometer 9 may be referred to as the WD1002A-1 potentiometer.
In this embodiment, the shift fork 7 is hinged with the ball nut 6 through the bearing 15, the bearing mounting hole of the shift fork 7 is a groove, and the hinge point can be changed along with the axial movement of the ball nut 6.
In this embodiment, the connecting portion 16-2 is provided with a guide hole through which the rotation shaft 8 passes.
When the utility model is particularly used, the motor 2 rotates to drive the ball screw 5 to rotate through the driving gear 3 and the driven gear 4, and the ball screw 5 rotates to enable the ball nut 6 to move along the axial direction of the ball screw 5; in the process that the ball nut 6 moves along the axial direction of the ball screw 5, the guide groove 6-3 slides along the guide rod 12, the convex rod 6-2 drives the shifting fork part 7-2 to swing, and the shifting fork part 7-2 swings to drive the rotating shaft 8 to swing;
or the motor 2 reversely rotates to drive the ball screw 5 to reversely rotate through the driving gear 3 and the driven gear 4, and the ball screw 5 reversely rotates to reversely move the ball nut 6 along the axial direction of the ball screw 5; in the process that the ball nut 6 moves reversely along the axial direction of the ball screw 5, the guide groove 6-3 slides along the guide rod 12, the convex rod 6-2 drives the shifting fork part 7-2 to swing reversely, and the shifting fork part 7-2 swings reversely to drive the rotating shaft 8 to swing reversely, so that the swinging angle of the rotating shaft 8 is adjusted.
In summary, the utility model has simple structure and reasonable design, the motor is in transmission connection with the ball screw pair through the gear pair, and meanwhile, the ball screw pair is provided with the shifting fork, so that the ball screw pair can drive the shifting fork to swing under the power action of the motor, and further, the rotating shaft can be driven to swing, and the structure is compact and the transmission efficiency is high.
The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, and any simple modification, variation and equivalent structural changes made to the above embodiment according to the technical substance of the present utility model still fall within the scope of the technical solution of the present utility model.
Claims (7)
1. A narrow space gear pair lead screw pair combination angle swing mechanism which is characterized in that: the device comprises a machine base (1), a ball screw pair arranged on the machine base (1), a shifting fork (7) hinged with the ball screw pair and a rotating shaft (8) swinging synchronously with the shifting fork (7), wherein a motor (2) is arranged on the machine base (1), and the motor (2) is in transmission connection with the ball screw pair through a gear pair;
the ball screw pair comprises a ball screw (5) arranged on a machine base (1) in a rotating mode and a ball nut (6) which is sleeved on the ball screw (5) and can move along the ball screw (5), the shifting fork (7) comprises a straight rod portion (7-1) and two shifting fork portions (7-2) arranged at the end portions of the straight rod portion (7-1), the two shifting fork portions (7-2) are hinged to the ball nut (6), the straight rod portion (7-1) penetrates through a rotating shaft (8) and is connected, and the ball nut (6) drives the rotating shaft (8) to swing through the shifting fork (7).
2. The combined angle swing mechanism of the small space gear pair lead screw pair according to claim 1, wherein: the gear pair comprises a driving gear (3) arranged on an output shaft of the motor (2) and a driven gear (4) meshed with the driving gear (3); the output shaft of the motor (2) penetrates through the base (1), one end of the ball screw (5) penetrates through the base (1), and the driven gear (4) is arranged at one end of the ball screw (5).
3. The combined angle swing mechanism of the small space gear pair lead screw pair according to claim 1, wherein: the ball nut (6) comprises a nut part (6-1) sleeved on the ball screw (5) and two convex rods (6-2) symmetrically arranged on the nut part (6-1), and an inner bearing (15) for installing the convex rods (6-2) is arranged in the shifting fork part (7-2) in a penetrating mode.
4. The combined angle swing mechanism of the small space gear pair lead screw pair according to claim 2, wherein: the bottom of the rotating shaft (8) is rotatably mounted on the machine base (1) through a bottom bearing (14), a mounting hole for the straight rod part (7-1) to pass through is formed in the rotating shaft (8), a lock nut is arranged at the end part of the straight rod part (7-1) penetrating out of the rotating shaft (8), and the rotating shaft (8) and the straight rod part (7-1) are vertically arranged initially.
5. The combined angle swing mechanism of the small space gear pair lead screw pair according to claim 1, wherein: the novel electric meter comprises a machine base (1), and is characterized in that a potentiometer seat (16) is arranged on the machine base (1), the potentiometer seat (16) comprises a base portion (16-1) arranged on the machine base (1) and a connecting portion (16-2) integrally formed with the base portion (16-1), a rotating shaft (8) penetrates through the connecting portion (16-2), a potentiometer (9) is arranged in the base portion (16-1) in a penetrating mode, a first positioning gear (10) is sleeved on the rotating shaft (8), a second positioning gear (11) is sleeved on the potentiometer (9), and the second positioning gear (11) is meshed with the first positioning gear (10).
6. The combined angle swing mechanism of the small space gear pair lead screw pair according to claim 1, wherein: the machine seat (1) is provided with a protection cover (17) for accommodating the driving gear (3) and the driving gear (3).
7. A combination angle swing mechanism of a pinion gear pair lead screw pair according to claim 3, wherein: the machine seat (1) is provided with a guide rod (12) which is arranged in parallel with the ball screw (5), the nut part (6-1) is provided with a guide groove (6-3), and the guide rod (12) is arranged in the guide groove (6-3) in a penetrating way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320329129.1U CN219673214U (en) | 2023-02-27 | 2023-02-27 | Combined angle swinging mechanism of narrow space gear pair lead screw pair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320329129.1U CN219673214U (en) | 2023-02-27 | 2023-02-27 | Combined angle swinging mechanism of narrow space gear pair lead screw pair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219673214U true CN219673214U (en) | 2023-09-12 |
Family
ID=87924620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320329129.1U Active CN219673214U (en) | 2023-02-27 | 2023-02-27 | Combined angle swinging mechanism of narrow space gear pair lead screw pair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219673214U (en) |
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2023
- 2023-02-27 CN CN202320329129.1U patent/CN219673214U/en active Active
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