Novel impact-resistant motor assembly

Abstract

The utility model discloses a novel shock-resistant motor assembly, which relates to the technical field of motors, and comprises a motor, the motor and a shell are mutually inserted and fixed by a strip, a motor gear of the motor is in meshed transmission with a face gear arranged on the shell, and the face gear can drive an output shaft to rotate through a gear set consisting of a plurality of gears; the two anti-impact gears which are in coaxial transmission in the gear set form corresponding ratchets; when the motor rotates reversely, the two anti-impact gears can be elastically separated and combined. Compared with the prior art, rotation of the output gear can be buffered, the output gear is prevented from being impacted, and the service life of the motor assembly can be prolonged to a certain extent.

Description

Technical Field

[0001] The utility model relates to a motor assembly, in particular to a novel impact-resistant motor assembly, belonging to the technical field of motors. Background Art

[0002] The swing of the bionic toy limb is realized by the forward and reverse rotation of the motor. Since there is almost no pause time for the motor to switch the rotation direction, it is easy to cause impact on the output gear at the end. Therefore, the applicant has designed a novel impact-resistant motor assembly and filed the following application accordingly. Content of the Utility Model

[0003] Aiming at the deficiencies of the above-mentioned prior art, the utility model provides a novel impact-resistant motor assembly.

[0004] To achieve the above object, the technical solution adopted by the utility model is: a novel impact-resistant motor assembly, including a motor, the motor is inserted into and fixed by a strip with a housing, and its motor gear meshes with a face gear provided on the housing, and the face gear can drive the output shaft to rotate through a gear set composed of several gears; two impact-resistant gears that are coaxially driven in the gear set form corresponding ratchet teeth; when the motor rotates reversely, the two impact-resistant gears can be elastically disengaged.

[0005] Preferably, the two impact-resistant gears are respectively a main gear and a slave gear. The main gear is used to cooperate with the motor for input, and the slave gear is used to cooperate with the output shaft for output. The main gear can be displaced up and down relative to the slave gear to achieve disengagement and engagement.

[0006] Preferably, it further includes a ring body coaxially arranged with the impact-resistant gear, and there is a spring between the main gear and the ring body.

[0007] Preferably, any one of the two impact-resistant gears forms a ring groove at the ratchet teeth, and the other forms a ring protrusion correspondingly.

[0008] Preferably, the housing includes an upper shell and a lower shell that are spliced together, and the motor is inserted into a slot formed at its front end.

[0009] Preferably, barbs are formed on the outer wall of the housing, and both ends of a strip with toughness are hung on the barbs to limit the motor.

[0010] The utility model has at least the following advantages:

[0011] 1. It can buffer the rotation of the output gear, avoid it from being impacted, and improve the service life of the motor assembly;

[0012] 2. The motor is supported and fixed by a strip, which can avoid structural deformation caused by falling. Description of the Drawings

[0013] Figure 1 It is a structural schematic diagram of the present utility model.

[0014] Figure 2 is Figure 1 a schematic cross-sectional view of

[0015] Figure 3 It is a structural schematic diagram of the main gear.

[0016] Figure 4 It is a structural schematic diagram of the driven gear.

[0017] In the figure, 1 - housing; 101 - barb; 2 - motor; 201 - motor gear; 3 - face gear; 4 - output gear; 5 - impact-resistant gear; 501 - main gear; 511 - upper ratchet tooth; 521 - annular convex; 502 - driven gear; 512 - lower ratchet tooth; 522 - annular groove; 6 - intermediate gear; 7 - annular body; 701 - spring; 8 - output shaft; 9 - strip. Specific embodiments

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0019] As Figures 1 - 4 shown: A new type of impact-resistant motor assembly includes a housing 1 formed by splicing an upper shell and a lower shell, and a motor 2 is inserted into a slot formed at the front end of the housing 1. It can drive an output shaft 8 at the end to reciprocate through a gear set, thereby realizing the swinging motion of the bionic toy limb.

[0020] Furthermore, at the head end of the above-mentioned gear set, there is a face gear 3, and the face gear 3 meshes with the motor gear 201 of the motor 2, thereby realizing the overall transmission of the gear set. The output gear 4 at the end of the gear set is installed on the output shaft 8 and is used to drive the output shaft 8 and the toy limb to reciprocate. The output gear 4 is powered by a pair of impact-resistant gears 5 that cooperate with it. When the motor 2 switches the rotation direction, the two impact-resistant gears 5 can, through their clutch function, give a certain buffer time to the rotating output shaft 8.

[0021] Furthermore, the two anti-impact gears 5 are respectively a main gear 501 and a slave gear 502, which are coaxially arranged and have corresponding ratchet teeth, wherein the main gear 501 is meshed with the transition gear 6 in the gear set, and the ratchet teeth formed therefrom are upper ratchet teeth 511, while the slave gear 502 is meshed with the output gear 4, and the ratchet teeth formed therefrom are lower ratchet teeth 512.

[0022] Specifically, there is also a ring body 7 coaxially arranged with the above-mentioned anti-impact gear 5. The ring body 7 is engaged with the shell 1 so that it can only rotate. There is a spring 701 between the ring body 7 and the main gear 501. When the motor 2 switches direction, the main gear 501 generates elastic clutch with the slave gear 502 with the help of the ratchet and the spring 701.

[0023] Specifically, the main gear 501 is further formed with an annular protrusion 521 at the position of its own ratchet teeth, and the slave gear 502 is correspondingly formed with an annular groove 522. The annular protrusion 521 and the annular groove 522 are used to assist the upward return action of the main gear 501 to prevent it from colliding with the slave gear 502 due to its elasticity and causing ratchet wear.

[0024] Furthermore, since the motor assembly of the present design is ultimately installed in a bionic toy, and since the shells of bionic toys are different, the motor assembly may be installed in the shell in a vertical, inclined, or other state. In order to prevent the motor 2 from falling, the motor 2 is also supported by a tough strip 9, such as Figure 1 As shown, barbs 101 are formed on the upper and lower sides of the housing 1 , and the two ends of the strip 9 are hung on the barbs 101 , and the middle section of the strip 9 presses the rear end of the motor 2 to limit and fix the motor 2 .

[0025] As mentioned above, the limbs of existing bionic toys are installed on the output shaft. Due to the existence of the limbs, the output shaft will have a large inertia during the rotation process. When the motor suddenly switches direction, this inertia easily causes the output gear to directly impact the gear meshing at the front end, causing wear of the gear structure. Compared with this design, a pair of anti-impact gears are added at the front end of the output gear. Through the clutch effect between the anti-impact gears, a certain buffer time is provided for the rotation of the output gear, thereby avoiding wear problems as much as possible and increasing the service life of the motor assembly.

[0026] It can be understood that the present utility model is described by means of some embodiments. Those skilled in the art will be aware that, without departing from the spirit and scope of the present utility model, various changes or equivalent substitutions can be made to these features and embodiments. Additionally, under the teaching of the present utility model, these features and embodiments can be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the present utility model.

Claims

1. A novel impact-resistant motor assembly, comprising a motor (2), characterized in that: The motor (2) and the housing (1) are plugged into each other and fixed by a strip (9); the motor gear (201) is meshed with a face gear (3) provided on the housing (1) for transmission; the face gear (3) can drive the output shaft (8) to rotate through a gear set composed of a plurality of gears; two coaxially driven anti-collision gears (5) in the gear set form corresponding ratchet teeth; when the motor (2) rotates in the reverse direction, the two anti-collision gears (5) can be elastically disengaged.

2. A novel impact-resistant motor assembly as claimed in claim 1, characterized in that: The two anti-impact gears (5) are respectively a main gear (501) and a slave gear (502); the main gear (501) is used to cooperate with the motor (2) for input, and the slave gear (502) is used to cooperate with the output shaft (8) for output; the main gear (501) can move up and down relative to the slave gear (502) to achieve clutch.

3. A novel impact-resistant motor assembly as claimed in claim 1 or 2, characterized in that: It also includes a ring body (7) coaxially arranged with the anti-impact gear (5), and a spring (701) is provided between the main gear (501) and the ring body (7).

4. A novel impact-resistant motor assembly as claimed in claim 1, characterized in that: Any one of the two anti-impact gears (5) is formed with an annular groove (522) at the ratchet tooth, and the other is correspondingly formed with an annular protrusion (521).

5. A novel impact-resistant motor assembly as claimed in claim 1, characterized in that: The housing (1) comprises an upper housing and a lower housing which are joined together, and the motor (2) is plugged into a slot formed at the front end thereof.

6. A novel impact-resistant motor assembly as claimed in claim 1, characterized in that: The outer wall of the housing (1) is formed with a barb (101), and two ends of a tough strip (9) are hung on the barb (101) to restrict the motor (2).

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