CN210290692U - Redundant input speed regulation device - Google Patents
Redundant input speed regulation device Download PDFInfo
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- CN210290692U CN210290692U CN201921070054.XU CN201921070054U CN210290692U CN 210290692 U CN210290692 U CN 210290692U CN 201921070054 U CN201921070054 U CN 201921070054U CN 210290692 U CN210290692 U CN 210290692U
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Abstract
The utility model discloses a redundant input speed adjusting device, the device contains: a housing; the differential gear is arranged in the shell and can rotate relatively, and is divided into three parts: input, sunken section and output, the circumference of this sunken section is equipped with: a gear; the main input shaft sequentially penetrates through the shell, the input end of the differential gear and the concave section and can rotate relative to the shell; a sun gear fixed to the main input shaft and located at an output end of the differential gear; a main motor fixed to the main input shaft; planetary gears symmetrically engaged with the sun gear and engaged with the gear; a planetary carrier fixed to a central shaft of the planetary gear; the speed regulation output shaft is fixed with the planet gear carrier; one end of the worm penetrates through the side wall of the shell and can rotate relatively, and the other end of the worm can rotate relatively with the inner wall of the shell and is meshed with the gear of the concave section; and a secondary motor fixed to the worm. The utility model discloses a device can realize its radial dimension and reduce and multiple speed governing.
Description
Technical Field
The utility model relates to a speed adjusting device, concretely relates to redundant input speed adjusting device.
Background
In many mechanical devices, speed regulation output is required, and the comprehensive performance of the whole mechanical device depends on the quality of matching and dynamic regulation of the performance of a transmission and a servo motor to a great extent.
In heavy-load erecting equipment, the initial acceleration stage time is short, the occupation ratio in the whole working period is small, a servo motor is required to provide a large torque, and the requirement on the performance of the servo motor is high. The servo motor with large torque is usually increased in weight and appearance obviously, and the increase of load inertia can also affect speed regulation. These all cause very big constraint to the overall dimension design of whole equipment, and the consumption of motor increases simultaneously, and the utilization ratio reduces.
At present, although various inorganic transmissions are developed, most of them have low transmission efficiency, complex structure and high cost.
Disclosure of Invention
The utility model aims at providing a redundant input speed adjusting device, the device have solved the problem that current device structure is complicated, can make the radial dimension of gearbox reduce, and the total volume reduces, and the appearance of box is more regular, and the processing of being convenient for has realized the miniaturization, realizes multiple speed governing moreover.
In order to achieve the above object, the present invention provides a redundant input speed adjusting device, which comprises: a housing; the differential gear is arranged in the shell and can rotate relative to the shell, and the side wall of the differential gear is symmetrically provided with an inward concave structure which is divided into three parts: input, sunken section and output, the circumference of this sunken section is equipped with: a gear; the main input shaft sequentially penetrates through the shell, the input end of the differential gear and the concave section and can rotate relative to the shell; a sun gear fixedly connected to an output end of the main input shaft, located at an output end of the differential gear, and opposed to the gear; the output shaft of the main motor is fixedly connected with the main input shaft and is used for driving the main input shaft to rotate; planetary gears which are symmetrically engaged on the sun gear and which are engaged with the gear; a planetary carrier fixed to a central axis of the planetary gear; the speed regulation output shaft is fixedly connected with the planetary gear carrier; one end of the worm penetrates through the side wall of the shell and can rotate relative to the side wall of the shell, and the other end of the worm can rotate relative to the inner wall of the shell and is meshed with the gear of the concave section; and an output shaft of the secondary motor is fixedly connected with one end of the worm and is used for driving the worm to rotate.
Preferably, the apparatus further comprises: and the main end covers are fixed at two ends of the shell, and the main input shaft and the speed regulation output shaft penetrate through the main end covers and can rotate relative to the main end covers.
Preferably, the main end cover is provided with a hollow cylindrical structure protruding towards the inside of the shell in the middle, and the main input shaft penetrates through the hollow cylindrical structure and is rotatably connected with the hollow cylindrical structure.
Preferably, the apparatus further comprises: and the main bearing is arranged between the main end cover and the input end and the output end of the differential gear and clamped on the inner walls of the main end cover and the input end and the output end of the differential gear.
Preferably, all be equipped with between main input shaft and the speed governing output shaft and the main end cover: and the first bearing is clamped and abutted on the side walls of the main input shaft and the speed regulation output shaft and the main end cover.
Preferably, a space between the two ends of the worm and the inner wall of the housing is provided with: and the second bearing is clamped on the side wall of the worm and the inner wall of the shell.
Preferably, the sun gear is rotationally connected with the planet carrier.
Preferably, the central shaft of the sun gear has a convex structure, the central shaft of the planet carrier has a concave structure, the convex structure of the sun gear is located at the concave structure of the planet carrier, and there are: and the third bearing is clamped and abutted against the convex structure of the sun gear and the concave structure of the planet carrier.
Preferably, the main input shaft is of unitary construction with the sun gear.
Preferably, the gear of the recessed section of the differential gear is constituted by a worm gear fixed circumferentially to the recessed section.
The utility model discloses a redundant input speed adjusting device has solved the problem that current device structure is complicated, has following advantage:
(1) the differential gear of the device of the utility model adopts a stepped shaft type structure, the outer circle surface of the small shaft diameter part (the sunken section) is made into a worm wheel, the inner circle surface of the large shaft diameter part (the output end) is made into a turnover gear, the processing is convenient, the processing difficulty and the manufacturing cost are reduced, the axial size of the gearbox is increased, the radial size is reduced, the total volume is reduced, the appearance of the box body is more regular, the processing is convenient, the miniaturization is realized, and the application range is increased;
(2) the device of the utility model takes the worm as the secondary input shaft to input power, and the differential gear obtains a certain rotating speed through the action of the worm gear and the worm, and drives the planetary gear to rotate, so that the power is output from the planetary gear carrier after two-stage speed reduction of the planetary gear train, and a larger speed reduction ratio is realized;
(3) in the device, the worm wheel and worm pair has a self-locking function, power cannot be transmitted to the worm from the worm wheel part of the differential gear, and the worm and worm function can be used as a mechanical self-locking device to stop operation under emergency conditions of sudden power failure or failure of motor braking, so that the safety of equipment and personnel is protected;
(4) the utility model discloses a device, regard the worm as secondary input shaft input power for the input power of the device comprises two parts, main motor passes through main input shaft input and secondary motor passes through worm shaft input power, output speed and moment of torsion are decided by main motor input and secondary motor input jointly, and main motor and secondary motor can all regard as the power supply alone, do the output of fixed reduction ratio;
(5) the utility model discloses a device can realize different kinds of speed governing modes:
under the condition that the input of the main motor is constant, the speed-regulating output shaft obtains continuous speed-increasing output within a certain range by the positive input of the secondary motor with different rotating speeds;
under the condition that the input of the main motor is constant, the secondary motor reversely inputs different rotating speeds, so that the speed-regulating output shaft can obtain continuous speed-reducing output in a certain range;
under the condition that the input of the main motor is constant, the secondary motor inputs different rotating speeds, so that the speed-regulating output shaft can obtain larger torque and power output;
under the condition that the main motor is independently input, the speed regulation output shaft can obtain a certain speed reduction ratio and power output, and can be independently used as a planetary gear reducer;
under the condition that the secondary motor is independently input, the speed regulation output shaft can obtain a certain speed reduction ratio and power output, and the speed regulation output shaft can be equivalent to a worm and gear reducer to be independently used;
under the emergency condition of sudden power failure or motor brake failure, the worm and worm function can be used as a mechanical self-locking device to stop the operation, so that the safety of equipment and personnel is protected.
Drawings
Fig. 1 is a front sectional view of the redundant input speed control device of the present invention.
Fig. 2 is a side view and sectional view of the redundant input speed control device of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a redundant input speed adjusting device, as shown in FIG. 1, does the utility model discloses a redundant input speed adjusting device's main section view, as shown in FIG. 2, does the utility model discloses a redundant input speed adjusting device's section view that looks sideways at, the device contains: the speed-regulating mechanism comprises a shell 6, a differential gear 2, a main input shaft, a sun gear 1, a main motor, a planetary gear 4, a planetary gear carrier 5, a speed-regulating output shaft, a worm 3 and a secondary motor.
The differential gear 2 is arranged in the shell 6 and can rotate relative to the shell 6, and the side wall of the differential gear is symmetrically provided with an inward concave structure which is divided into three parts: input, sunken section and output, the circumference of this sunken section is equipped with: a gear. The main input shaft passes through the housing 6, the input end of the differential gear 2 and the recessed section in this order, and is rotatable relative to the housing 6. The sun gear 1 is fixedly connected with the output end of the main input shaft, is arranged at the output end of the differential gear 2 and is opposite to the position of the gear of the concave section. The output shaft of the main motor is fixedly connected with the main input shaft and used for driving the main input shaft to rotate. The planet gears 4 are symmetrically meshed with the sun gear 1 and they are meshed with the gears. The carrier 5 is fixed to the central axis of the planetary gear 4. The speed regulation output shaft is fixedly connected with the planet gear carrier 5. One end of the worm 3 penetrates through the side wall of the shell 6 and can rotate relative to the side wall of the shell 6, and the other end of the worm can rotate relative to the inner wall of the shell 6 and is meshed with the gear of the concave section. And an output shaft of the secondary motor is fixedly connected with one end of the worm 3 and used for driving the worm 3 to rotate.
The sun gear 1, the planet gears 4, the planet gear carrier 5 and the differential gear 2 form a planetary gear transmission system.
The utility model discloses a differential gear adopts ladder shaft type structure, makes the worm wheel with the excircle surface of minor axis footpath part (sunken section), makes the interior round surface of major axis footpath part (output) have enough to meet the need the gear, and the processing of being convenient for has reduced the processing degree of difficulty and cost of manufacture, makes the axial dimensions of gearbox increase moreover, and radial dimension reduces, and the total volume reduces, and the appearance of box is more regular, and the processing of being convenient for has realized the miniaturization, has increased application scope.
Furthermore, the utility model discloses a worm 3 is as inferior input shaft input power, through the worm gear effect, makes differential gear 2 obtain certain rotational speed, and differential gear 2 drives planetary gear 4 and rotates, consequently exports from planetary gear carrier 5 after the reduction of planetary gear train two-stage, realizes great reduction ratio. In addition, the worm-and-gear pair has a self-locking function, and power cannot be transmitted to the worm 3 from the worm wheel portion of the differential gear 2. Therefore, the utility model discloses a speed adjusting device's input power comprises two parts, and main motor passes through main input shaft input and time motor through worm axle input power, and output speed and moment of torsion are decided by main motor input and time motor input jointly, and main motor and time motor all can regard as the power supply alone in addition, do the output of deciding the reduction ratio.
According to the utility model discloses an embodiment, the device still contains: and the main end covers 8 are fixed at two ends of the shell 6, and the main input shaft and the speed regulation output shaft penetrate through the main end covers and can rotate relative to the main end covers.
According to the utility model discloses an embodiment, main end cover 8 middle has to bellied cavity cylindricality structure in the casing 6, and main input shaft passes this cavity cylindricality structure to rotate with this cavity cylindricality structure and be connected.
According to the utility model discloses an embodiment, the device still contains: and the main bearing 7 is arranged between the main end cover 8 and the input end and the output end of the differential gear 2 and clamped on the inner walls of the main end cover 8 and the input end and the output end of the differential gear 2. More specifically, the differential gear 2 is provided on the inner walls of the input and output ends thereof with: and the first shoulder is used for clamping the main bearing 7 at the first shoulder, and the main bearing 7 is limited through the main end cover 8.
According to the utility model discloses an embodiment, all be equipped with between main input shaft and speed governing output shaft and the main end cover 8: and the first bearing is clamped and abutted on the side walls of the main input shaft and the speed regulation output shaft and the main end cover 8. More specifically, all be equipped with on the outer wall of main input shaft and speed governing output shaft: and the bearing I is clamped on the main end cover 8 and the shoulders II of the main input shaft and the speed regulation output shaft, and is limited through the main end cover 8.
According to the utility model discloses an embodiment is equipped with between the both ends of worm 3 and the inner wall of casing 6: and a second bearing which is clamped and abutted against the side wall of the worm 3 and the inner wall of the shell 6.
According to an embodiment of the present invention, the sun gear 1 is rotatably connected to the planet carrier 5.
According to the utility model discloses an embodiment, sun gear 1's center pin has protruding structure, and planet carrier 5's center pin has sunk structure, and sun gear 1's protruding structure is in planet carrier 5's sunk structure department, is equipped with between and: and a third bearing which is clamped against the convex structure of the sun gear 1 and the concave structure of the planet carrier 5.
According to the utility model discloses an embodiment, main input shaft and sun gear 1 are a body structure.
According to the utility model discloses an embodiment, the gear of the sunken section of differential gear 2 comprises this sunken section upwards fixed turbine of circumference, can make turbine and differential gear 2 as an organic whole.
The utility model discloses a redundant input speed adjusting device's theory of operation specifically as follows:
the main input shaft is driven to rotate under the rotation of the main motor, the sun gear 1 rotates along with the main input shaft, the planetary gear 4 is driven to rotate through the meshing between the gears, and the planetary gear carrier 5 is fixed on the central shaft of the planetary gear 4, so that the rotation of the planetary gear carrier 5 is realized under the rotation condition of the planetary gear 4, and the output is realized from the speed regulation output shaft.
Under the rotation of the secondary motor, the worm 3 is driven to rotate, the worm 3 and the worm wheel of the differential gear 2 act to drive the differential gear 2 to rotate, and the planetary gear 4 is driven to rotate by the gear on the inner wall of the output end of the differential gear 2 and is transmitted to the speed regulation output shaft by the planetary gear carrier 5 to be output.
When in use, the speed regulating device can realize the following conditions:
(1) under the condition that the input of the main motor is constant, the secondary motor inputs different rotating speeds in the positive direction and decelerates to the differential gear 2 under the action of the worm gear and the worm, so that the speed-adjusting output shaft obtains continuous acceleration output within a certain range;
(2) under the condition that the input of the main motor is constant, the secondary motor reversely inputs different rotating speeds, and the speed is reduced to the differential gear under the action of the worm gear, so that the speed-regulating output shaft can obtain continuous speed-reducing output in a certain range;
(3) under the condition that the main motor inputs certain speed, the secondary motor inputs different rotating speeds, and the speed is reduced to a differential gear under the action of a worm gear, so that a speed-regulating output shaft can obtain larger torque and power output;
(4) under the condition that the main motor is independently input, the speed regulation output shaft can obtain a certain speed reduction ratio and power output, and can be independently used as a planetary gear reducer;
(5) under the condition that the secondary motor is independently input, the speed regulation output shaft can obtain a certain speed reduction ratio and power output, and the speed regulation output shaft can be equivalent to a worm and gear reducer to be independently used;
(6) under the emergency condition of sudden power failure or motor brake failure, the worm and worm function can be used as a mechanical self-locking device to stop the operation, so that the safety of equipment and personnel is protected.
While the present invention has been described in detail with reference to the preferred embodiments thereof, it should be understood that the above description should not be taken as limiting the present invention. Numerous modifications and alterations to the present invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be limited only by the attached claims.
Claims (10)
1. A redundant input governor apparatus, comprising:
a housing (6);
the differential gear (2) is positioned in the shell (6) and can rotate relative to the shell (6), and the side wall of the differential gear is symmetrically provided with an inward concave structure which is divided into three parts: input, sunken section and output, the circumference of this sunken section is equipped with: a gear;
the main input shaft sequentially penetrates through the shell (6), the input end of the differential gear (2) and the concave section and can rotate relative to the shell (6);
a sun gear (1) which is fixedly connected to the output end of the main input shaft, is located at the output end of the differential gear (2), and is opposite to the gear;
the output shaft of the main motor is fixedly connected with the main input shaft and is used for driving the main input shaft to rotate;
planetary gears (4) which are symmetrically engaged on the sun gear (1) and which are engaged with the gear;
a planetary carrier (5) fixed to the central axis of the planetary gear (4);
the speed regulation output shaft is fixedly connected with the planetary gear carrier (5);
one end of the worm (3) penetrates through the side wall of the shell (6) and can rotate relative to the side wall of the shell (6), and the other end of the worm can rotate relative to the inner wall of the shell (6) and is meshed with the gear of the concave section; and
and an output shaft of the secondary motor is fixedly connected with one end of the worm (3) and is used for driving the worm (3) to rotate.
2. The redundant input governor of claim 1, further comprising: and the main end covers (8) are fixed at two ends of the shell (6), and the main input shaft and the speed regulation output shaft penetrate through the main end covers and can rotate relative to the main end covers.
3. A redundant input speed regulation according to claim 2, characterized in that the main end cap (8) has a hollow cylindrical structure protruding into the housing (6) in the middle, through which the main input shaft passes and is rotationally connected to.
4. The redundant input governor of claim 2 or 3, further comprising: and the main bearing (7) is arranged between the main end cover (8) and the input end and the output end of the differential gear (2) and clamped on the inner walls of the main end cover (8) and the input end and the output end of the differential gear (2).
5. The redundant input speed regulation device of claim 2 or 3, wherein the main input shaft and the speed regulation output shaft are provided with a main end cover (8) therebetween: and the first bearing is clamped and abutted on the side walls of the main input shaft and the speed regulation output shaft and the main end cover (8).
6. The redundant input governor according to claim 1, characterized in that between the two ends of the worm (3) and the inner wall of the housing (6) there are provided: and the second bearing is clamped against the side wall of the worm (3) and the inner wall of the shell (6).
7. The redundant input governor according to claim 1, characterized in that the sun gear (1) is rotationally connected with the planet gear carrier (5).
8. The redundant input governor according to claim 7, characterized in that the central axis of the sun gear (1) has a convex structure and the central axis of the planet carrier (5) has a concave structure, the convex structure of the sun gear (1) is at the concave structure of the planet carrier (5), with there between: and a third bearing which is clamped against the convex structure of the sun gear (1) and the concave structure of the planet gear carrier (5).
9. The redundant input governor according to claim 1, characterized in that the main input shaft is of integral construction with the sun gear (1).
10. The redundant input speed regulation device according to claim 1, characterized in that the gears of the recessed section of the differential gear (2) are constituted by a turbine that is circumferentially fixed to the recessed section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921070054.XU CN210290692U (en) | 2019-07-10 | 2019-07-10 | Redundant input speed regulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921070054.XU CN210290692U (en) | 2019-07-10 | 2019-07-10 | Redundant input speed regulation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210290692U true CN210290692U (en) | 2020-04-10 |
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ID=70101701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921070054.XU Expired - Fee Related CN210290692U (en) | 2019-07-10 | 2019-07-10 | Redundant input speed regulation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210290692U (en) |
-
2019
- 2019-07-10 CN CN201921070054.XU patent/CN210290692U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200410 |