Motor braking structure

Abstract

The utility model relates to the technical field of motors, in particular to a motor braking structure. The motor braking structure comprises a motor, a rotating shaft, a first gear, a gear set and a brake, an output shaft of the motor is connected with the rotating shaft, the motor can drive the rotating shaft to rotate, the first gear fixedly sleeves the periphery of the rotating shaft, one end of the gear set is meshed with the first gear, and the other end of the gear set is connected with the brake. The brake can lock the rotating shaft, and the gear set is used for amplifying braking force of the brake. Compared with the prior art, according to the braking structure, the first gear is arranged on the rotating shaft, the gear set is connected with the first gear and the brake at the same time, the braking torque of the brake is amplified through the gear set, overshoot or backlash of the rotating shaft can be prevented, the motor is protected, and load damage caused by overshoot or backlash when the motor is powered off is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor technical field especially relates to a motor brake structure. BACKGROUND

[0002] The motor mechanism is used for completing the driving piece of various mechanical products in modern industry, and the power of the motor is transmitted to the executing component through the motor mechanism, so that various mechanical actions are completed. It has wide application in various types of mechanical equipment.

[0003] The existing motor transmits power outward through the output shaft. When the motor is powered off, the output shaft of the motor will continue to rotate due to inertia, continue to output power to the load, cause the output shaft to overshoot or recoil, and cause damage to the load or the motor.

[0004] Therefore, an electric motor brake structure is needed to solve the above technical problems. UTILITY MODEL CONTENTS

[0005] The utility model discloses a motor brake structure can prevent the output shaft overshoot or recoil, protect the motor, avoided the damage of load when the motor is powered off because of overshoot or recoil.

[0006] In order to achieve this purpose, the utility model adopts the following technical scheme:

[0007] A motor brake structure, comprising: motor, rotating shaft, first gear, gear set and brake, the output shaft of the motor is connected with the rotating shaft, and the motor can drive the rotating shaft to rotate, the first gear is fixedly sleeved on the outer periphery of the rotating shaft, one end of the gear set is engaged with the first gear, the other end of the gear set is connected with the brake, the brake can lock the rotating shaft, and the gear set is used for amplifying the brake force of the brake.

[0008] As a preferred technical scheme of the above motor brake structure, the gear set comprises a bracket, a second gear, a third gear, a fourth gear and a fifth gear, the second gear, the third gear, the fourth gear and the fifth gear are all rotationally connected to the bracket, both ends of the second gear are engaged with the first gear and the third gear respectively, the third gear and the fourth gear are coaxially arranged, the fourth gear is engaged with the fifth gear, the output end of the brake passes through the bracket and is connected with the fifth gear, and the brake can lock the fifth gear.

[0009] As a preferred technical scheme of the above-mentioned motor braking structure, the bracket comprises a first side plate, a second side plate and a bottom plate, the first side plate and the second side plate are oppositely arranged on the bottom plate, the second gear, the third gear, the fourth gear and the fifth gear are rotatably connected between the first side plate and the second side plate, and the output end of the brake is connected with the fifth gear through the second side plate.

[0010] As a preferred technical scheme of the above-mentioned motor braking structure, the bracket further comprises a plurality of connecting pieces, the connecting pieces are arranged at intervals, and the two ends of the connecting pieces are connected with the first side plate and the second side plate respectively.

[0011] As a preferred technical scheme of the above-mentioned motor braking structure, the motor braking structure further comprises a first rotating rod, the two ends of the first rotating rod are rotatably connected with the first side plate and the second side plate respectively, and the second gear is fixedly sleeved on the outer periphery of the first rotating rod.

[0012] As a preferred technical scheme of the above-mentioned motor braking structure, the motor braking structure further comprises two first bearings, the outer rings of the two first bearings are fixed on the first side plate and the second side plate respectively, and the two ends of the first rotating rod are fixed on the inner rings of the two first bearings respectively.

[0013] As a preferred technical scheme of the above-mentioned motor braking structure, the motor braking structure further comprises a second rotating rod, the two ends of the second rotating rod are rotatably connected with the first side plate and the second side plate respectively, and the third gear and the fourth gear are fixedly sleeved on the outer periphery of the second rotating rod.

[0014] As a preferred technical scheme of the above-mentioned motor braking structure, the motor braking structure further comprises two second bearings, the outer rings of the two second bearings are fixed on the first side plate and the second side plate respectively, and the two ends of the second rotating rod are fixed on the inner rings of the two second bearings respectively.

[0015] As a preferred technical scheme of the above-mentioned motor braking structure, the motor braking structure further comprises a third rotating rod, the two ends of the third rotating rod are rotatably connected with the first side plate and the second side plate respectively, and the fifth gear is fixedly sleeved on the outer periphery of the third rotating rod.

[0016] As a preferred technical scheme of the above-mentioned motor braking structure, the motor braking structure further comprises two third bearings, the outer rings of the two third bearings are fixed on the first side plate and the second side plate respectively, and the two ends of the third rotating rod are fixed on the inner rings of the two third bearings respectively.

[0017] The utility model has the advantages of:

[0018] The utility model provides a motor brake structure, a motor brake structure includes: motor, pivot, first gear, gear set and brake, motor's output shaft is connected with the pivot, and motor can drive the pivot rotation, first gear is fixedly sleeved in the outer periphery of the pivot, one end of gear set is engaged with first gear, the other end of gear set is connected with brake, brake can lock the pivot, gear set is used for amplifying the brake force of brake. Compared with prior art, this brake structure sets first gear on the pivot, gear set connects first gear and brake simultaneously, brake torque is amplified through gear set, can prevent the pivot from overshooting or recoil, protects motor, avoids load damage caused by overshooting or recoil when motor is powered off. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the utility model embodiment, the following will be briefly introduced to the drawing needed to be used in the utility model embodiment, and obviously, the drawing in the following description is only some embodiments of the utility model, and for ordinary skilled person in the art, other drawings can be obtained according to the content of the utility model embodiment and these drawings without creating creative labor.

[0020] Figure 1 The utility model provides a motor brake structure's structural schematic view for the utility model embodiment;

[0021] Figure 2 The utility model provides a gear set's structural schematic view for the utility model embodiment.

[0022] In the drawing:

[0023] 1, motor;2, pivot;3, first gear;4, gear set;41, support;411, first side plate;412, second side plate;413, bottom plate;4131, lightening hole;414, connecting piece;42, second gear;43, third gear;44, fourth gear;45, fifth gear;5, brake;6, first rotating rod;7, first bearing;8, second rotating rod;9, second bearing;10, third rotating rod;11, third bearing;12, bolt. DETAILED DESCRIPTION

[0024] The utility model will be further explained in detail in the following combining with the drawing and embodiment.It can be understood that the specific embodiment described here is only used to explain the utility model, and not the limitation of the utility model.In addition, it needs to be explained that, in order to facilitate the description, only the part related to the utility model is shown in the drawing but not all structures.

[0025] In the description of the utility model, unless another definite provision and limitation, the term "link", "connection", "fix" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements internal communication or two element's mutual action relation.For the ordinary skill in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0026] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can include the first and second features direct contact, also can include the first and second features are not direct contact but contact through the additional feature between them.Moreover, the first feature is "on", "above" and "on" the second feature includes the first feature is directly above and obliquely above the second feature, or just indicates that the first feature horizontal height is higher than the second feature.The first feature is "under", "below" and "under" the second feature includes the first feature is directly below and obliquely below the second feature, or just indicates that the first feature horizontal height is less than the second feature.

[0027] In the description of the embodiment, the orientation or position relationship of the terms "on", "under", "left", "right" and the like is based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model.In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0028] As Figure 1 And Figure 2The utility model provides a kind of motor 1 brake structure shown.The utility model provides a kind of motor 1 brake structure.One kind of motor 1 brake structure includes: motor 1, rotating shaft 2, first gear 3, gear set 4 and brake 5.Concretely, the output shaft of motor 1 is connected with rotating shaft 2, and motor 1 can drive rotating shaft 2 to rotate, first gear 3 is fixedly sleeved in the outer periphery of rotating shaft 2, one end of gear set 4 is engaged with first gear 3, the other end of gear set 4 is connected with brake 5, brake 5 can lock rotating shaft 2, and gear set 4 is used to amplify the braking force of brake 5.Compared with prior art, the brake structure is provided with first gear 3 on rotating shaft 2, gear set 4 is connected with first gear 3 and brake 5 simultaneously, the braking torque of brake 5 is amplified by gear set 4, can prevent rotating shaft 2 from overshooting or recoil, protect motor 1, avoid load damage caused by overshooting or recoil when motor 1 is powered off.Further, when motor 1 is powered, brake 5 is powered synchronously, brake 5 is loosened, and gear set 4 rotates normally;When motor 1 is powered off after load is completed, brake 5 is powered off synchronously, and brake 5 is quickly braked.

[0029] Optionally, in the embodiment, the speed ratio of gear set 4 is 1:9.Of course, in some other embodiments, the speed ratio of gear set 4 is determined according to actual conditions, which will not be described here.

[0030] Optionally, gear set 4 includes support 41, second gear 42, third gear 43, fourth gear 44 and fifth gear 45, second gear 42, third gear 43, fourth gear 44 and fifth gear 45 are all rotationally connected to support 41, both ends of second gear 42 are engaged with first gear 3 and third gear 43 respectively, third gear 43 is coaxially arranged with fourth gear 44, fourth gear 44 is engaged with fifth gear 45, the output end of brake 5 passes through support 41 and is connected with fifth gear 45, and brake 5 can lock fifth gear 45.Concretely, the size of first gear 3, second gear 42 and fourth gear 44 is the same, the size of third gear 43 is smaller than that of fourth gear 44, and the size of fifth gear 45 is smaller than that of fourth gear 44, through the cooperation of second gear 42, third gear 43, fourth gear 44 and fifth gear 45, the speed ratio of gear set 4 is 1:9, for amplifying the braking torque of brake 5, so that rotating shaft 2 can be braked in time, and rotating shaft 2 can be prevented from overshooting or recoil.

[0031] Optionally, the support 41 comprises a first side plate 411, a second side plate 412 and a bottom plate 413, the first side plate 411 and the second side plate 412 are oppositely and spacedly arranged on the bottom plate 413, the second gear 42, the third gear 43, the fourth gear 44 and the fifth gear 45 are all rotationally connected between the first side plate 411 and the second side plate 412, and the output end of the brake 5 is connected with the fifth gear 45 through the second side plate 412. Specifically, a plurality of bolts 12 are respectively and threadedly connected with the first side plate 411 and the second side plate 412 through the bottom plate 413, so as to facilitate dismounting and mounting of the support 41, and the brake 5 is arranged on the second side plate 412, so as to improve stability of the brake 5, and meanwhile, the second gear 42, the third gear 43, the fourth gear 44 and the fifth gear 45 are all rotationally connected between the first side plate 411 and the second side plate 412, so as to improve stability of the second gear 42, the third gear 43, the fourth gear 44 and the fifth gear 45.

[0032] Optionally, the bottom plate 413 is provided with a lightening hole 4131, so as to realize lightening of the support 41.

[0033] Optionally, the support 41 further comprises a plurality of connecting pieces 414, the plurality of connecting pieces 414 are spacedly arranged, and two ends of each connecting piece 414 are respectively connected with the first side plate 411 and the second side plate 412, so as to improve stability of the support 41.

[0034] Optionally, the motor 1 brake structure further comprises a first rotating rod 6, two ends of the first rotating rod 6 are rotationally connected with the first side plate 411 and the second side plate 412 respectively, and the second gear 42 is fixedly sleeved on an outer periphery of the first rotating rod 6, so as to smoothly rotate the second gear 42 and reduce friction.

[0035] Further, the motor 1 brake structure further comprises two first bearings 7, outer rings of the two first bearings 7 are fixedly connected with the first side plate 411 and the second side plate 412 respectively, and two ends of the first rotating rod 6 are fixedly connected with inner rings of the two first bearings 7 respectively, so as to further reduce friction of rotation of the second gear 42.

[0036] Optionally, the motor 1 brake structure further comprises a second rotating rod 8, two ends of the second rotating rod 8 are rotationally connected with the first side plate 411 and the second side plate 412 respectively, and the third gear 43 and the fourth gear 44 are both fixedly sleeved on an outer periphery of the second rotating rod 8, so as to smoothly rotate the third gear 43 and the fourth gear 44 and reduce friction.

[0037] Further, the motor 1 brake structure further comprises two second bearings 9, outer rings of the two second bearings 9 are fixedly connected with the first side plate 411 and the second side plate 412 respectively, and two ends of the second rotating rod 8 are fixedly connected with inner rings of the two second bearings 9 respectively, so as to further reduce friction of rotation of the third gear 43 and the fourth gear 44.

[0038] Optionally, the motor 1 brake structure further comprises a third rotating rod 10, both ends of the third rotating rod 10 are rotatably connected to the first side plate 411 and the second side plate 412 respectively, and the fifth gear 45 is fixedly sleeved on the outer periphery of the third rotating rod 10, so that the fifth gear 45 can rotate smoothly and the friction is reduced.

[0039] Further, the motor 1 brake structure further comprises two third bearings 11, the outer rings of the two third bearings 11 are fixed to the first side plate 411 and the second side plate 412 respectively, and both ends of the third rotating rod 10 are fixed to the inner rings of the two third bearings 11 respectively, so that the friction of the rotation of the fifth gear 45 is further reduced.

[0040] In addition, the above are only preferred embodiments of the present application and the technical principles applied. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and those skilled in the art can make various obvious changes, re-adjustments and substitutions without departing from the scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments, and can include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims

1. A motor braking structure, characterized in that, The motor brake structure comprises a motor (1), a rotating shaft (2), a first gear (3), a gear set (4) and a brake (5), the output shaft of the motor (1) is connected with the rotating shaft (2), and the motor (1) can drive the rotating shaft (2) to rotate, the first gear (3) is fixedly sleeved on the outer periphery of the rotating shaft (2), one end of the gear set (4) is engaged with the first gear (3), the other end of the gear set (4) is connected with the brake (5), the brake (5) can lock the rotating shaft (2), and the gear set (4) is used for amplifying the braking force of the brake (5). The speed ratio of the gear set (4) is 1:

9. The gear set (4) comprises a support (41), a second gear (42), a third gear (43), a fourth gear (44) and a fifth gear (45), the second gear (42), the third gear (43), the fourth gear (44) and the fifth gear (45) are all rotationally connected to the support (41), the two ends of the second gear (42) are respectively engaged with the first gear (3) and the third gear (43), the third gear (43) is coaxially arranged with the fourth gear (44), the fourth gear (44) is engaged with the fifth gear (45), the output end of the brake (5) passes through the support (41) and is connected with the fifth gear (45), and the brake (5) can lock the fifth gear (45).

2. A motor braking structure according to claim 1, wherein The support (41) comprises a first side plate (411), a second side plate (412) and a bottom plate (413), the first side plate (411) and the second side plate (412) are oppositely and spacedly arranged on the bottom plate (413), the second gear (42), the third gear (43), the fourth gear (44) and the fifth gear (45) are all rotationally connected between the first side plate (411) and the second side plate (412), and the output end of the brake (5) passes through the second side plate (412) and is connected with the fifth gear (45).

3. A motor braking structure according to claim 2, wherein The support (41) further comprises a plurality of connecting pieces (414), the plurality of connecting pieces (414) are spacedly arranged, and the two ends of each connecting piece (414) are connected with the first side plate (411) and the second side plate (412) respectively.

4. A motor braking structure according to claim 3, wherein The motor brake structure further comprises a first rotating rod (6), the two ends of the first rotating rod (6) are rotationally connected with the first side plate (411) and the second side plate (412) respectively, and the second gear (42) is fixedly sleeved on the outer periphery of the first rotating rod (6).

5. A motor braking structure according to claim 3, wherein The motor brake structure further comprises two first bearings (7), the outer rings of the two first bearings (7) are fixedly connected with the first side plate (411) and the second side plate (412) respectively, and the two ends of the first rotating rod (6) are fixedly connected with the inner rings of the two first bearings (7).

6. A motor braking structure according to claim 5, wherein ​ 7. A motor braking structure according to claim 3, wherein The motor braking structure further comprises a second rotating rod (8), both ends of the second rotating rod (8) are rotatably connected to the first side plate (411) and the second side plate (412) respectively, and the third gear (43) and the fourth gear (44) are fixedly sleeved on the outer periphery of the second rotating rod (8).

8. A motor braking structure according to claim 7, wherein The motor braking structure further comprises two second bearings (9), the outer rings of the two second bearings (9) are fixed to the first side plate (411) and the second side plate (412) respectively, and both ends of the second rotating rod (8) are fixed to the inner rings of the two second bearings (9) respectively.

9. A motor braking structure according to claim 3, wherein The motor braking structure further comprises a third rotating rod (10), both ends of the third rotating rod (10) are rotatably connected to the first side plate (411) and the second side plate (412) respectively, and the fifth gear (45) is fixedly sleeved on the outer periphery of the third rotating rod (10).

10. A motor braking structure according to claim 9, wherein The motor braking structure further comprises two third bearings (11), the outer rings of the two third bearings (11) are fixed to the first side plate (411) and the second side plate (412) respectively, and both ends of the third rotating rod (10) are fixed to the inner rings of the two third bearings (11) respectively.

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