CN218882836U - Motor coupling with overload protection structure - Google Patents
Motor coupling with overload protection structure Download PDFInfo
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- CN218882836U CN218882836U CN202223028055.2U CN202223028055U CN218882836U CN 218882836 U CN218882836 U CN 218882836U CN 202223028055 U CN202223028055 U CN 202223028055U CN 218882836 U CN218882836 U CN 218882836U
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Abstract
The utility model discloses a take motor coupling of overload protection structure relates to mechanical transmission technical field, include: a first bearing and a second bearing are arranged on two sides of an inner cavity at one end of the transmission end semi-coupling; one end of the motor end half-coupling is set to be a long shaft with a center hole, the long shaft extends into an inner cavity of the transmission end half-coupling to be in interference fit connection with inner rings of the first bearing and the second bearing, the long shaft can rotate in the inner cavity, the first pressing cover and the end face of the long shaft can be detachably and fixedly connected and can fix the first bearing on a first bearing placing station, the first pressing cover can limit the transmission end half-coupling and the motor end half-coupling to be displaced relatively in the axial direction, the pin shaft is in interference fit connection with the first lining and the second lining, buffer type overload parking is achieved, transmission equipment is prevented from being deformed and broken, spare part cost is saved, and danger to field personnel and equipment is effectively avoided.
Description
Technical Field
The utility model relates to a mechanical transmission technical field especially relates to a take motor coupling of overload protection structure.
Background
Generally, a motor rotating shaft is connected with a transmission shaft through a coupler, the general coupler comprises a motor end half coupler and a transmission end half coupler, the motor end half coupler is connected with the motor rotating shaft, the transmission end half coupler is connected with the transmission shaft, the motor end half coupler and the transmission end half coupler are fixed through grooved pin shafts at respective flange plates, the torque of the rotating shaft can be transmitted to the transmission shaft through the coupler, when the torque exceeds a set value, the grooved pin shafts are broken, power cut-off of an input end and an output end is achieved, meanwhile, large radial additional load can be generated, an input shaft flange plate is out of control and thrown away, and broken pin shaft parts can also fly out. Because the transmission fault has certain hysteresis quality during overload, great hidden danger is brought to field personnel and equipment, normal production is seriously influenced, accident enlargement is easy to cause, labor and repair cost is increased, and production efficiency is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a take motor coupling of overload protection structure to solve the problem that above-mentioned prior art exists, realize buffering formula overload parking, avoid transmission to take place to warp, the fracture damage, practiced thrift spare parts cost, can avoid transmission and cracked round pin axle departure simultaneously, effectively avoid bringing danger to field personnel and equipment.
In order to achieve the above object, the utility model provides a following scheme:
the utility model provides a take motor coupling of overload protection structure, include: the motor end half coupling comprises a motor end half coupling body, a transmission end half coupling body, a first bearing, a second bearing, a first gland, a second gland, a plurality of pin shafts, a plurality of first bushings and a plurality of second bushings; the inner circumferential surface of one end of the transmission end half coupling is uniformly provided with a plurality of inner spline teeth, the inner spline teeth are used for being fixedly connected with outer spline teeth on a transmission shaft in an embedded mode, two sides of an inner cavity of the other end of the transmission end half coupling are provided with a first annular bearing placing station and a second annular bearing placing station, the first bearing placing station is used for placing a first bearing, the second bearing placing station is used for placing a second bearing, a second flange plate is arranged on the periphery of one end, away from the transmission shaft, of the transmission end half coupling, and a plurality of second pin shaft holes are formed in the second flange plate; one end of the motor end half coupling is in interference assembly connection with a motor main transmission shaft through a shaft hole and a key groove, the other end of the motor end half coupling is provided with a long shaft with a center hole, the long shaft extends into an inner cavity of the transmission end half coupling and is in interference assembly connection with inner rings of a first bearing and a second bearing, the long shaft can rotate in the inner cavity, a first flange plate is arranged at the middle position of an outer ring of the motor end half coupling, a plurality of first pin shaft holes are formed in the first flange plate, a first gland is detachably and fixedly connected with the end face of the long shaft and can fix the first bearing on the first bearing placing station, the first gland can limit the transmission end half coupling and the motor end half coupling to generate relative displacement in the axial direction, and the second gland is detachably and fixedly connected with the end face of the transmission end half coupling outside the second bearing placing station to fix the second bearing on the second bearing placing station; the first bush is arranged in the first pin hole, the second bush is arranged in the second pin hole, the pin shaft is used for penetrating the corresponding one of the first bush and the second bush to fix the transmission end half-coupling and the motor end half-coupling, and the pin shaft is in interference assembly connection with the first bush and the second bush.
Preferably, the tail end of the pin shaft is provided with an external thread, the pin shaft is in threaded connection with a nut to fix the first flange plate and the second flange plate, an annular shearing groove is formed in the position, where the first flange plate and the second flange plate are in contact, of the pin shaft, and the annular shearing groove is a breaking position of the pin shaft when the motor is overloaded.
Preferably, the first bushing and the second bushing are provided with annular edges at ends opposite to each other, and the outer diameter of each annular edge is larger than the diameter of each first pin shaft hole and the diameter of each second pin shaft hole.
Preferably, a groove portion is formed in one end, in contact with the transmission end half coupling, of the motor end half coupling, a protruding portion is formed in one end, in contact with the motor end half coupling, of the transmission end half coupling, and the protruding portion is fixedly embedded in the groove portion.
Preferably, still include a plurality of first hexagon socket head cap screws and a plurality of second hexagon socket head cap screws, be provided with a plurality of first blind holes on the terminal surface of major axis, first hexagon socket head cap screw thread connection be used for with first gland with the major axis is fixed, the second bearing is placed the station outside the terminal surface of transmission end half-coupling is provided with a plurality of second blind holes, second hexagon socket head cap screw thread connection be used for with the second gland with the transmission end half-coupling is fixed.
Preferably, the external diameter of first gland with the external diameter of first bearing is the same, the internal diameter of first gland is less than the internal diameter of first bearing, the internal diameter of first bearing with the second bearing is less than the diameter of transmission end coupling half inner chamber, the external diameter of first bearing with the second bearing is greater than the diameter of transmission end coupling half inner chamber, the internal diameter of second gland with the internal diameter of second bearing is the same, the external diameter of second gland is greater than the external diameter of second bearing.
The utility model discloses for prior art gain following technological effect:
the utility model provides a take motor coupling of overload protection structure, through the interference fit with the major axis in the motor end half-coupling and the first bearing and the second bearing of the inner chamber both sides of transmission end half-coupling, when motor load transships, the round pin axle is cut off, major axis first bearing and second bearing take place to rotate, thereby make the relative rotation take place between motor end half-coupling and the transmission end half-coupling, can't carry out power transmission, realize the buffering formula and transship the parking, avoid stopping rotating to cause the transmission equipment to warp in the twinkling of an eye, the fracture damage, spare part cost is saved, and can dismantle fixedly set up first gland at the terminal surface of major axis to restrict motor end half-coupling and transmission end half-coupling and move in the circumferential direction, make the flange plate on motor end half-coupling and the transmission end half-coupling can't separate axially; furthermore, the pin shaft and the bush are in interference fit, so that the broken pin shaft cannot be thrown away, and the danger to field personnel and equipment is effectively avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a cross-sectional view of a motor coupler with an overload protection structure according to the present invention;
fig. 2 is a schematic structural view of a motor end half-coupling in a motor coupling with an overload protection structure according to the present invention;
fig. 3 is a schematic structural view of a transmission end half-coupling in a motor coupling with an overload protection structure according to the present invention;
in the figure: 1. a motor end half coupling; 2. a transmission end half coupling; 4. a first bearing; 3. a second bearing; 6. a first gland; 5. the second gland is arranged; 8. a first bushing; 9. a second bushing; 10. internal spline teeth; 11. a first bearing placement station; 12. a second bearing placement station; 13. a second flange plate; 14. a second pin shaft hole; 15. a long axis; 16. a first flange plate; 17. a first pin shaft hole; 18. an annular rim; 19. a groove part; 20. a boss portion; 21. a first hexagon socket head cap screw; 22. a second hexagon socket screw; 23. a nut; 25. a pin shaft; 26. an annular shear groove; 27. a first blind hole; 28. a second blind hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
The utility model aims at providing a take motor coupling of overload protection structure to solve the problem that above-mentioned prior art exists, realize buffering formula overload parking, avoid transmission to take place to warp, the fracture damage, practiced thrift spare parts cost, can avoid transmission and cracked round pin axle departure simultaneously, effectively avoid bringing danger to field personnel and equipment.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
The utility model provides a take motor coupling of overload protection structure, as shown in fig. 1 ~ 3, include: the device comprises a motor end half-coupling 1, a transmission end half-coupling 2, a first bearing 4, a second bearing 3, a first gland 6, a second gland 5, a plurality of pin shafts 25, a plurality of first bushings 8 and a plurality of second bushings 9; a plurality of inner spline teeth 10 are uniformly arranged on the inner circumferential surface of one end of the transmission end half coupling 2, the inner spline teeth 10 are used for being fixedly connected with outer spline teeth on a transmission shaft in an embedded mode, two sides of an inner cavity of the other end of the transmission end half coupling 2 are provided with a first annular bearing placing station 11 and a second annular bearing placing station 12, the first bearing placing station 11 is used for placing a first bearing 4, the second bearing placing station is used for placing a second bearing 3, a second flange plate 13 is arranged on the periphery of one end, away from the transmission shaft, of the transmission end half coupling 2, and a plurality of second pin shaft holes 14 are formed in the second flange plate 13; one end of the motor end half-coupling 1 is in interference assembly connection with a motor main transmission shaft through a shaft hole and a key groove, the other end of the motor end half-coupling is provided with a long shaft 15 with a center hole, the long shaft 15 extends into an inner cavity of the transmission end half-coupling 2 to be in interference assembly connection with inner rings of a first bearing 4 and a second bearing 3, the long shaft 15 can rotate in the inner cavity, a first flange 16 is arranged at the middle position of an outer ring of the motor end half-coupling 1, a plurality of first pin shaft holes 17 are formed in the first flange 16, a first gland 6 is detachably and fixedly connected with the end surface of the long shaft 15 and can fix the first bearing 4 on a first bearing placing station 11, the first gland 6 can limit the transmission end half-coupling 2 and the motor end half-coupling 1 to generate relative displacement in the axial direction, and a second gland 5 is used for being detachably and fixedly connected with the end surface of the transmission end half-coupling 2 outside a second bearing placing station 12 so as to fix the second bearing 3 on a second bearing placing station 12; the first bush 8 is arranged in the first pin shaft hole 17, the second bush 9 is arranged in the second pin shaft hole 14, the pin shaft 25 is used for penetrating through the corresponding first bush 8 and second bush 9 to fix the transmission end half-coupling 2 and the motor end half-coupling 1, the pin shaft 25 is in interference assembly connection with the first bush 8 and the second bush 9, the long shaft 15 in the motor end half-coupling 1 and the first bearing 4 and the second bearing 3 on two sides of the inner cavity of the transmission end half-coupling 2 are in interference assembly, when the motor is overloaded, the pin shaft 25 is cut off, the first bearing 4 and the second bearing 3 of the long shaft 15 rotate, so that the motor end half-coupling 1 and the transmission end half-coupling 2 rotate relatively, power transmission cannot be carried out, buffer type overload parking is realized, the transmission equipment cannot deform and break and damage caused by instant stop of rotation, the cost of spare parts is saved, and the first gland 6 is detachably and fixedly arranged on the end face of the long shaft 15 to limit the axial movement of the motor end half-coupling 1 and the transmission end half-coupling 2 in the circumferential direction, so that the motor end half-coupling 1 and the flange plate 2 cannot be separated axially; furthermore, the pin shaft 25 and the bush are in interference fit, so that the broken pin shaft 25 cannot be thrown away, and the danger to field personnel and equipment is effectively avoided.
In a preferred embodiment, the end of the pin 25 is provided with an external thread, the pin 25 fixes the first flange 16 and the second flange 13 by being in threaded connection with the nut 23, the pin 25 is provided with an annular shearing groove 26 at the position where the first flange 16 and the second flange 13 contact, the annular shearing groove 26 is the fracture position of the pin 25 when the motor is overloaded, the structure is simple, the working stability is high, the annular shearing groove 26 can be used for enabling the fracture to occur at the annular shearing groove 26 when the motor is overloaded, the fractured pin 25 can be also in interference fit with the bush, and the damage to personnel and equipment caused by the flying-out of the pin 25 is avoided.
In a preferred embodiment, the ends of the first and second bushings 8, 9 that are relatively far apart are each provided with an annular rim 18 having an outer diameter that is greater than the diameter of the first and second pin hole 17, 14, the annular rim 18 being capable of facilitating the positioning of the first and second bushings 8, 9 in the first and second pin hole 17, 14.
In a preferred embodiment, a groove portion 19 is arranged at one end of the motor end half-coupling 1, which is in contact with the transmission end half-coupling 2, a protrusion portion 20 is arranged at one end of the transmission end half-coupling 2, which is in contact with the motor end half-coupling 1, the protrusion portion 20 is fixedly embedded with the groove portion 19, the groove portion 19 and the protrusion portion 20 can facilitate centering when the motor end half-coupling 1 is connected with the transmission end half-coupling 2, and on the other hand, the embedded connection of the groove portion 19 and the protrusion portion 20 can avoid radial displacement between the motor end half-coupling 1 and the transmission end half-coupling 2, so that radial stress can be eliminated, and when the load fluctuation of the unit is serious, the pin shaft 25 is enabled to be unevenly loaded, a fatigue fracture condition occurs in advance under the condition that the unit does not reach a shearing condition, and stable operation of the unit is affected.
In a preferred embodiment, the motor coupler with the overload protection structure further includes a plurality of first hexagon socket head bolts 21 and a plurality of second hexagon socket head bolts 22, a plurality of first blind holes 27 are formed in the end surface of the long shaft 15, the first hexagon socket head bolts 21 are in threaded connection with the first blind holes 27 and used for fixing the first gland 6 with the long shaft 15, a plurality of second blind holes 27 are formed in the end surface of the transmission end half coupler 2 outside the second bearing placing station 12, and the second hexagon socket head bolts 22 are in threaded connection with the second blind holes 28 and used for fixing the second gland 5 with the transmission end half coupler 2.
In a preferred embodiment, the outer diameter of the first gland 6 is the same as the outer diameter of the first bearing 4, and the inner diameter of the first gland 6 is smaller than the inner diameter of the first bearing 4, so that the first gland 6 can ensure that the long shaft 15 does not circumferentially displace with the transmission end half coupling 2 while limiting the circumferential displacement of the first bearing 4,
the internal diameter of first bearing 4 and second bearing 3 is less than the diameter of 2 inner chambers of transmission end half-coupling, the external diameter of first bearing 4 and second bearing 3 is greater than the diameter of 2 inner chambers of transmission end half-coupling, guarantee that major axis 15 can take place relative rotation with 2 inner chambers of transmission end half-coupling, the internal diameter of second gland 5 is the same with the internal diameter of second bearing 3, the external diameter of second gland 5 is greater than the external diameter of second bearing 3, can make second gland 5 restrict the removal of second bearing 3 on the circumferential direction, do not influence major axis 15 again and take place relative rotation for 2 inner chambers of transmission end half-coupling.
The utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (6)
1. The utility model provides a take motor coupling of overload protection structure which characterized in that: the method comprises the following steps: the motor end half-coupling, the transmission end half-coupling, the first bearing, the second bearing, the first gland, the second gland, the plurality of pin shafts, the plurality of first bushings and the plurality of second bushings;
the inner circumferential surface of one end of the transmission end half coupling is uniformly provided with a plurality of inner spline teeth, the inner spline teeth are used for being fixedly connected with outer spline teeth on a transmission shaft in an embedded mode, two sides of an inner cavity of the other end of the transmission end half coupling are provided with a first annular bearing placing station and a second annular bearing placing station, the first bearing placing station is used for placing a first bearing, the second bearing placing station is used for placing a second bearing, a second flange plate is arranged on the periphery of one end, away from the transmission shaft, of the transmission end half coupling, and a plurality of second pin shaft holes are formed in the second flange plate;
one end of the motor end half-coupling is in interference assembly connection with a motor main transmission shaft through a shaft hole and a key groove, the other end of the motor end half-coupling is provided with a long shaft with a center hole, the long shaft extends into an inner cavity of the transmission end half-coupling and is in interference assembly connection with inner rings of a first bearing and a second bearing, the long shaft can rotate in the inner cavity, a first flange plate is arranged at the middle position of an outer ring of the motor end half-coupling, a plurality of first pin shaft holes are formed in the first flange plate, a first gland and the end face of the long shaft can be detachably and fixedly connected and can fix the first bearing on the first bearing placing station, the first gland can limit the transmission end half-coupling and the motor end half-coupling to generate relative displacement in the axial direction, and the second gland is used for being detachably and fixedly connected with the end face of the transmission end half-coupling outside the second bearing placing station to fix the second bearing on the second bearing placing station;
the first bush is arranged in the first pin hole, the second bush is arranged in the second pin hole, the pin shaft is used for penetrating the corresponding one of the first bush and the second bush to fix the transmission end half-coupling and the motor end half-coupling, and the pin shaft is in interference assembly connection with the first bush and the second bush.
2. The motor coupling with the overload protection structure according to claim 1, wherein: the tail end of the pin shaft is provided with an external thread, the pin shaft is in threaded connection with a nut to fix the first flange plate and the second flange plate, an annular shearing groove is formed in the position, in which the first flange plate is in contact with the second flange plate, of the pin shaft, and the annular shearing groove is a breaking position of the pin shaft when the motor is overloaded.
3. The motor coupling with the overload protection structure according to claim 2, wherein: the first bush with the second bush is relative to be kept away from one end all be provided with the annular edge, the external diameter of annular edge is greater than first round pin shaft hole with the diameter in second round pin shaft hole.
4. The motor coupling with the overload protection structure according to claim 1, wherein: the motor end half coupling is provided with a groove portion at one end in contact with the transmission end half coupling, a protruding portion is arranged at one end in contact with the motor end half coupling, and the protruding portion is fixedly embedded with the groove portion.
5. The motor coupling with the overload protection structure according to claim 1, wherein: still include a plurality of first hexagon socket head cap bolts and a plurality of second hexagon socket head cap bolt, be provided with a plurality of first blind holes on the terminal surface of major axis, first hexagon socket head cap bolt with first blind hole threaded connection be used for with first gland with the major axis is fixed, the second bearing is placed the station outside the terminal surface of transmission end half-coupling is provided with a plurality of second blind holes, second hexagon socket head cap bolt with second blind hole threaded connection be used for with the second gland with transmission end half-coupling is fixed.
6. The motor coupling with the overload protection structure according to claim 5, wherein: the external diameter of first gland with the external diameter of first bearing is the same, the internal diameter of first gland is less than the internal diameter of first bearing, first bearing with the internal diameter of second bearing is less than the diameter of transmission end half-coupling inner chamber, first bearing with the external diameter of second bearing is greater than the diameter of transmission end half-coupling inner chamber, the internal diameter of second gland with the internal diameter of second bearing is the same, the external diameter of second gland is greater than the external diameter of second bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223028055.2U CN218882836U (en) | 2022-11-14 | 2022-11-14 | Motor coupling with overload protection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223028055.2U CN218882836U (en) | 2022-11-14 | 2022-11-14 | Motor coupling with overload protection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218882836U true CN218882836U (en) | 2023-04-18 |
Family
ID=85939229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223028055.2U Active CN218882836U (en) | 2022-11-14 | 2022-11-14 | Motor coupling with overload protection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218882836U (en) |
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2022
- 2022-11-14 CN CN202223028055.2U patent/CN218882836U/en active Active
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