CN212131213U - A magnetic reversing transmission device - Google Patents

Abstract

The utility model discloses a magnetic reversing transmission device, it is applied to the mechanical transmission field, it includes the input shaft of center pin coincidence, output shaft and sets up the planetary gear train mechanism between input shaft and the output shaft, planetary gear train mechanism includes sun gear, planetary gear set and ring gear, planetary gear set includes three sets of planetary wheel pairs installed on the planetary gear axle, the planetary gear axle is fixed on the planet carrier, the output shaft is fixed to be set up in the center pin department of planet carrier, the sun gear is fixed to be set up in the end of input shaft, the input shaft sets up in the center pin department of casing, is equipped with gliding magnetic ring on casing, ring gear and the planet carrier of coaxial setting; the utility model discloses a machinery and magnetic coupling transmission, simple structure, required spare part is few, changes simple and conveniently, has lower maintenance cost, and maintenance, maintenance procedure are simple, can realize the function of switching-over, transmission power and separation and reunion smoothly through the slip of magnetic ring.

Description

A magnetic reversing transmission device

technical field

The utility model relates to the field of mechanical transmission, in particular to a magnetic reversing transmission device.

Background technique

Most of the traditional transmission devices realize the transmission through the gear system, and the reversing is generally realized by the idler gear in the gear transmission system. In the traditional gearbox, the reversing transmission is generally realized through the input shaft, the intermediate shaft and the output shaft. An idler gear is arranged between the intermediate shaft and the output shaft. By controlling the idler gear to mesh with the gears on the intermediate shaft and the output shaft, the commutation purpose.

In the existing scheme, the functions of reverse gear and reversing can be realized, but the structure is complex, there are many parts and components, and a more complex reverse gear operating mechanism and corresponding control system need to be equipped, which leads to increased cost, reduced reliability and high maintenance cost. .

Utility model content

To this end, we have developed a magnetic reversing transmission device, which adopts the form of mechanical and magnetic coupling transmission.

In order to solve the above-mentioned technical problems, the technical scheme adopted by the present utility model is:

The utility model comprises an input shaft and an output shaft whose central shafts are coincident, and a planetary gear train mechanism arranged between the input shaft and the output shaft. The planetary gear train mechanism comprises a sun gear, a planetary gear set and a ring gear. The sun gear is externally meshed with the planetary gear set, the planetary gear set is internally meshed with the ring gear, the output shaft is fixedly arranged at the central axis of the planet carrier, the sun gear is fixedly arranged at the end of the input shaft, and the input shaft It is arranged at the central axis of the casing, and a sliding magnetic ring is arranged on the coaxially arranged casing, the ring gear and the planet carrier.

A further improvement of the present invention is that the planetary gear set is composed of three sets of planetary gear trains, each set of planetary gear trains includes two externally meshed internal gears and external gears, the internal gears are meshed with the sun gear, and the external gears are meshed with the sun gear. The gear meshes with the ring gear.

A further improvement of the present invention is that: the planetary gear set is arranged on the planetary gear shaft, the planetary gear shaft is fixedly arranged on the planet carrier, and is evenly distributed in the circumferential direction.

A further improvement of the present invention is that the outer diameters of the casing, the ring gear and the planet carrier are the same.

A further improvement of the utility model is that: the casing, the ring gear and the planet carrier are all magnetic materials.

A further improvement of the present invention is that: the casing is connected with the input shaft through the first bearing, and the planet carrier is connected with the support through the second bearing.

A further improvement of the utility model is that the sun gear, the planetary gear set and the ring gear are all helical gears.

Owing to adopting the above-mentioned technical scheme, the beneficial effects obtained by the present utility model are:

The utility model adopts mechanical and magnetic coupling transmission, the structure is relatively simple, the required components are few, the replacement is simple and convenient, the maintenance cost is low, and the maintenance and maintenance procedures are simple. Through the sliding of the magnetic ring, the functions of reversing, power transmission and clutching can be smoothly realized, no sliding gear is required in the working process, the friction and wear are small, and the service life is effectively prolonged.

In addition to being able to rotate around the planetary gear shaft like a fixed-axis gear, the single gears in the planetary gear set of the utility model can also drive the planetary gear shaft to rotate around the sun gear. The rotation of the planetary gear set around the planetary gear shaft is called "rotation", and the rotation around the sun gear is called "revolution".

When the magnetic ring slides between the casing and the ring gear, the ring gear and the casing are magnetized by the magnetic ring. Through the action of the magnetic force, the ring gear and the casing are solidly integrated, and the input shaft transmits the power through the sun gear and the planetary gear set to the The planet carrier, because the ring gear is fixed, the three sets of planetary gear pairs are meshed together respectively, and the two inner and outer gears that constitute the planetary gear pair rotate independently, and at the same time drive the planetary gear shaft as a whole to rotate counterclockwise around the sun gear, thereby driving the planetary gears. At this time, the output shaft and the input shaft rotate in the opposite direction to achieve the purpose of reversing; when the magnetic ring is between the ring gear and the planet carrier, the ring gear and the planet carrier are magnetized by the magnetic ring , Through the action of magnetic force, the ring gear and the planet carrier are solidly integrated, and the planetary gear set rotates synchronously with the ring gear and the planet carrier. The input shaft transmits power to the ring gear and the planet carrier through the sun gear and planetary gear set at the same time. Since the ring gear and the planet carrier are fixed, the planet carrier receives the same torque as the input shaft steering, and the output shaft rotates in the same direction as the input shaft, which plays a The function of transmitting power; when the magnetic ring is in other positions, the ring gear is not fixed with any part, and the input shaft transmits the power to the ring gear and the planet carrier through the sun gear and planetary gear set at the same time. Because the output bearing cannot rotate due to the load, the power It is completely used to drive the ring gear to rotate. At this time, the ring gear is in an idling state, and the transmission clutch function can be realized.

Description of drawings

Fig. 1 is the split state structure schematic diagram of the present utility model;

Fig. 2 is the schematic diagram of the position structure of the magnetic ring in the commutation process of the present invention;

3 is a schematic diagram of the positional structure of the magnetic ring during the power transmission process of the present invention.

Among them, 1. housing; 2. magnetic ring: 3. sun gear; 4. planetary gear set; 5. ring gear; 6. planet carrier; 7. bracket; 8. input shaft; 9. output shaft; 10. 1. Bearing; 11. Second bearing; 12. Planetary gear pair; 13. Planetary gear shaft; 14. External gear; 15. Internal gear.

Detailed ways

Below in conjunction with embodiment, the utility model is described in further detail:

A magnetic reversing transmission device, as shown in Figures 1-3, includes an input shaft 8 with coincident central axes, an output shaft 9 and a planetary gear train mechanism arranged between the input shaft 8 and the output shaft 9. The shaft 8 completes the functions of commutation and power transmission of the output shaft 9 through the planetary gear train mechanism.

As shown in FIG. 1 , the planetary gear train mechanism includes a sun gear 3 , a planetary gear set 4 and a ring gear 5 . The sun gear 3 meshes with the planetary gear set 4 externally, and the planetary gear set 4 is internally meshed with the ring gear 5 . In mesh, the planetary gear set 4 is mounted on the planet carrier 6 via the planetary gear shaft 13 .

At the center of the planetary gear train mechanism is the sun gear 3 , the planetary gear set 4 is mounted on the planetary gear shaft 13 , and the planetary gear shaft 13 is fixedly arranged on the planet carrier 6 and is evenly distributed in the circumferential direction.

The planetary gear set 4 is composed of three sets of planetary gear sets 12 , each set of planetary gear sets 12 includes two externally meshed internal gears 15 and external gears 14 , and the internal gears 15 and the external gears 14 are installed on the planetary gear shaft 13 . Above, the internal gear 15 and the external gear 14 rotate in opposite directions, the internal gear 15 is constantly meshed with the sun gear 3 , and the external gear 14 is constantly meshed with the ring gear 5 . In addition to being able to rotate around the planetary gear shaft 13 on the planetary carrier 6, the inner gear 15 and the outer gear 14 that make up the planetary gear pair 12 will also be driven by the planetary gear shaft 13 on the planetary carrier 6 to rotate around the sun gear 3. The central axis rotates, like the Earth's rotation and its revolution around the sun. The ring gear 5 and the external gear 14 of the planetary gear set 4 are in constant meshing or internal meshing, and the rotation direction between the two is the same. The sun gear 3 , the planetary gear set 4 and the ring gear 5 are always in meshing state. In order to improve the stability of the work, the sun gear 3 , the planetary gear set 4 and the ring gear 5 can all be set as helical gears.

The sun gear 3 is fixedly arranged at the end of the input shaft 8, the input shaft 8 is connected with the sun gear 3 through an interference fit, the input shaft 8 is arranged at the central axis of the casing 1, and the casing 1 passes through. The first bearing 10 is connected with the input shaft 8, and the outer diameters of the coaxially arranged casing 1, the ring gear 5 and the planet carrier 6 are all the same, and the casing 1, the ring gear 5 and the planet carrier 6 are provided with sliding magnets. Ring 2, the output shaft 9 is fixedly arranged at the central axis of the planet carrier 6, the planet carrier 6 is connected with the output shaft 9 through an interference fit, and the planet carrier 6 is connected with the bracket 7 through the second bearing 11, so The casing 1, the ring gear 5 and the bracket 7 are all mounted on the frame.

The central axes of the input shaft 8 , the output shaft 9 , the sun gear 3 , the magnetic ring 2 , the ring gear 5 , the planet carrier 6 and the bracket 7 are all coincident. The casing 1 , the ring gear 5 and the planet carrier 6 are all magnetic materials. The magnetic ring 2 realizes the ring gear 5 and the planetary carrier 6 through magnetic force respectively during the sliding process between the casing 1, the ring gear 5 and the planet carrier 6 and between the casing 1 and the ring gear 5 and between the ring gear 5 and the planet carrier 6. The fixing of the casing 1 and the fixing of the ring gear 5 and the planet carrier 6 .

As shown in Figure 2, when the magnetic ring 2 slides to the position between the casing 1 and the ring gear 5, the ring gear 5 and the casing 1 are magnetized. Circle 5 is fixed. At this time, the input shaft 8 transmits power to the output shaft 9 through the sun gear 3, the planetary gear set 4 and the planet carrier 6. Since the ring gear 5 is fixed, the planetary gear set 4 adopts three sets of planets with a uniform distribution and a Y-shaped structure. The 12 wheels make the force balanced during the transmission process and ensure the smooth and reliable transmission. The two externally meshed internal gears 15 and the external gears 14 constituting each group of planetary gear trains 12 are driven by two meshes to realize the change of the transmission state.

The three sets of planetary gear pairs 12 are all mounted on the planetary gear shafts 13 fixedly arranged on the planet carrier 6 and are evenly distributed in the circumferential direction, the ring gear 5 is fixed, and the three sets of planetary gear pairs 12 are meshed together to form planetary gears. The inner gear 15 and the outer gear 14 of 12 are rotated respectively, and at the same time, the planetary gear shaft 13 is driven to rotate counterclockwise around the sun gear 3 as a whole, thereby driving the planetary carrier 6 to realize the opposite torque to the input shaft 8. At this time, The output shaft 9 rotates in the opposite direction to the input shaft 8 to realize reversal.

As shown in FIG. 3 , when the magnetic ring 2 slides to the position between the ring gear 5 and the planet carrier 6, the ring gear 5 and the planet carrier 6 are magnetized, and the ring gear 5 and the planet carrier 6 are solidly integrated by the action of magnetic force, The three sets of planetary gear pairs 12 meshed together rotate around the sun gear 3, and at this time, the planetary gear set 4, the ring gear 5, and the planetary carrier 6 rotate synchronously. The input shaft 8 transmits power to the ring gear 5 and the planetary carrier 6 through the sun gear 3 and the planetary gear set 4 at the same time. Since the ring gear 5 and the planetary carrier 6 are fixed, the planetary carrier 6 receives the same torque as the input shaft 8, which is the same as the planetary gear. The output shaft 9 connected with the frame 6 rotates in the same direction as the input shaft 8 to realize the transmission of power.

When the magnetic ring 2 is located between the casing 1 and the ring gear 5, and between the ring gear 5 and the planet carrier 6, the ring gear 5 is not fixed with any component. At this time, the input shaft 8 passes through the sun gear 3, The planetary gear set 4 transmits the power to the ring gear 5 and the planet carrier 6 at the same time. Since the output shaft 9 cannot rotate under the load, the power is completely used to drive the ring gear 5 to rotate. At this time, the ring gear 5 is in an idling state, which can realize the transmission clutch function .

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, but not to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions in the embodiments of the present invention. .

Claims (7)

1. A magnetic reversing transmission device, characterized in that it comprises an input shaft (8), an output shaft (9) whose central axes coincide, and a planetary planet arranged between the input shaft (8) and the output shaft (9). wheel train, The planetary gear train mechanism includes a sun gear (3), a planetary gear set (4) and a ring gear (5), the sun gear (3) is externally meshed with the planetary gear set (4), and the planetary gear set (4) ) meshes with the ring gear (5), the output shaft (9) is fixedly arranged at the central axis of the planet carrier (6), The sun gear (3) is fixedly arranged at the end of the input shaft (8), the input shaft (8) is arranged at the central axis of the casing (1), and the casing (1), the ring gear ( 5) and the planet carrier (6) are provided with a sliding magnetic ring (2). 2. A magnetic reversing transmission device according to claim 1, characterized in that: the planetary gear set (4) is composed of three sets of planetary gear trains (12), and each set of planetary gear trains (12) includes two There are two externally meshed internal gears (15) and external gears (14), the internal gears (15) are meshed with the sun gear (3), and the external gears (14) are meshed with the ring gear (5). 3. A magnetic reversing transmission device according to claim 2, characterized in that: the planetary gear set (4) is arranged on the planetary gear shaft (13), and the planetary gear shaft (13) is fixedly arranged on the on the planet carrier (6) and evenly distributed in the circumferential direction. 4 . The magnetic reversing transmission device according to claim 1 , wherein the outer diameter of the casing ( 1 ), the ring gear ( 5 ) and the planet carrier ( 6 ) are the same. 5 . 5 . The magnetic reversing transmission device according to claim 4 , wherein the casing ( 1 ), the ring gear ( 5 ) and the planet carrier ( 6 ) are all magnetic materials. 6 . 6 . The magnetic reversing transmission device according to claim 5 , wherein the casing ( 1 ) is connected to the input shaft ( 8 ) through a first bearing ( 10 ), and the planet carrier ( 6 ) It is connected with the bracket (7) through the second bearing (11). 7 . The magnetic reversing transmission device according to claim 1 , wherein the sun gear ( 3 ), the planetary gear set ( 4 ) and the ring gear ( 5 ) are all helical gears. 8 .

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