CN211059242U

CN211059242U - Torsional spring reset type clutch device

Info

Publication number: CN211059242U
Application number: CN201921944545.2U
Authority: CN
Inventors: 陈思祖
Original assignee: Shenzhen Hobere Technology Co ltd
Current assignee: Shenzhen Hobere Technology Co ltd
Priority date: 2019-11-12
Filing date: 2019-11-12
Publication date: 2020-07-21
Anticipated expiration: 2029-11-12

Abstract

The utility model discloses a torsional spring reset clutch device, which comprises a shell, a power source, a clutch structure and an output gear, wherein the power source, the clutch structure and the output gear are arranged in the shell; the clutch structure comprises a central gear, a swinging block, a balance wheel and a torsion spring; the power source is connected with the central gear; the balance wheels are arranged at two ends of the swinging block and are respectively in meshed connection with the central gear; when the power source works to drive the central gear to rotate, the swinging block rotates and swings along with the power source to enable a balance wheel to be connected with the output gear piece, the central gear drives the balance wheel, and the balance wheel drives the output gear piece; when the swinging block rotates and swings, the torsional spring deforms and stores elastic potential energy; when the power source stops working, the elastic potential energy of the torsion spring acts on the swinging block to reset reversely, and the swinging wheel is disconnected with the output gear. The torsion spring provides reset force for the swinging block to enable the balance wheel to be disconnected with the output gear, and the clutch state of the balance wheel and the output gear can be realized in a mechanical reset mode by utilizing the torsion spring without being controlled by a motor.

Description

Torsional spring reset type clutch device

Technical Field

The utility model belongs to the technical field of the clutch device and specifically relates to indicate a torsional spring formula clutch that resets.

Background

The intelligent lock of intelligent lock on the market, it is in order to realize that two kinds of switch lock modes of motor and mechanical switch lock are mutually noninterfere, all set up corresponding separation and reunion structure (transmission structure) and can realize. For example, the transmission structure of the electronic lock cylinder disclosed in chinese invention patent CN 106703532 a and the electronic lock using the structure can realize full-automatic unlocking by driving the transmission mechanism with the motor, and simultaneously can rotate through the motor transmission by the design of the swing block after unlocking is completed, and quit the meshing state of the gears, so that the manual operation can be realized, and the combination of full-automatic unlocking and manual unlocking can be realized. However, the clutch structure can realize the meshing of the driven gear and the output gear only by swinging through controlling the swinging block by the motor; when the automatic unlocking and the manual unlocking are switched each time, the forward and reverse rotation control of the motor is required to be realized.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a torsion spring reset clutch device, which is reasonable in structure and arrangement, and effectively solves the problem that the clutch structure needs to be realized by using the forward and reverse rotation control of the motor.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a torsion spring reset type clutch device comprises a shell, a power source, a clutch structure and an output gear, wherein the power source, the clutch structure and the output gear are arranged in the shell;

the clutch structure comprises a central gear, a swinging block, a balance wheel and a torsion spring; the power source is connected with the central gear; the balance wheels are arranged at two ends of the swinging block and are respectively in meshed connection with the central gear;

when the power source works to drive the central gear to rotate, the swinging block rotates and swings along with the power source to enable a balance wheel to be connected with the output gear piece, the central gear drives the balance wheel, and the balance wheel drives the output gear piece; when the swinging block rotates and swings, the torsional spring deforms and stores elastic potential energy;

when the power source stops working, the elastic potential energy of the torsion spring acts on the swinging block to reset reversely, and the swinging wheel is disconnected with the output gear.

As a preferred embodiment: the torsion spring comprises a spiral body and two torsion arms; the swing block is provided with a first limited part, and the shell is provided with a second limited part; the two torsion arms are limited on two sides of the first limited part and the second limited part;

when the swing block rotates towards the positive direction and swings, one torsion arm moves along the positive direction along with the swing block, and the other torsion arm is limited by the second limiting part;

when the swing block rotates and swings reversely, the other torsion arm moves along with the swing block reversely, and one torsion arm is limited by the second limiting part.

As a preferred embodiment: the spiral body and the central gear are coaxially arranged, and concave positions are formed on two sides of the first limiting part and are used for corresponding adaptation of the two torsion arms.

As a preferred embodiment: and fixed shafts are arranged at two ends of the swinging block, and the balance wheel can be rotatably arranged on the fixed shafts.

As a preferred embodiment: the fixed shaft extends upwards to form a limiting convex part, the shell is provided with a limiting groove for limiting the stroke of the swinging block, and the limiting convex part is limited in the limiting groove.

As a preferred embodiment: the swing block comprises an upper swing block and a lower swing block which are arranged at an upper interval and a lower interval, the fixed shaft is connected to two ends of the upper swing block and the lower swing block, and the limiting convex part protrudes out of the upper surface of the upper swing block.

As a preferred embodiment: the upper swing block and the lower swing block are connected into a whole at one side through a lateral support plate.

As a preferred embodiment: the central gear comprises a lower gear and an upper gear which are integrally formed, and the lower gear is connected with a power source; the lower swing block is provided with a through hole, and the upper gear penetrates through the through hole and abuts against the bottom surface of the upper swing block.

As a preferred embodiment: the central gear is provided with a first shaft hole, and the upper swing block is provided with a second shaft hole; the casing is equipped with first dabber, and this sun gear and pendulum piece pass through first shaft hole and the rotatable installation in first dabber of second shaft hole.

As a preferred embodiment: the power source is either a stepping motor or a servo motor.

Compared with the prior art, the utility model obvious advantage and beneficial effect have, particularly, can know by above-mentioned technical scheme: when the power source works to drive the central gear and the balance wheels to rotate, the torsion spring is arranged on the swinging block and is linked with the swinging block to swing, so that any balance wheel is connected with the output gear; when the power source stops working, the torsion spring provides a reset force for the swinging block to enable the swinging wheel to be disconnected with the output gear; the structure shows that the clutching state of the balance wheel and the output gear can be realized in a mechanical reset mode by using the torsion spring without using motor control. Therefore, the clutch device with the structure has the advantages that the clutch process is easier to realize and more reliable; and the number of positive and negative rotation times of the motor can be reduced, and the service life of the motor is prolonged.

To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Drawings

Fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention.

Fig. 2 is a perspective view of the clutch structure according to the preferred embodiment of the present invention.

Fig. 3 is an exploded view of the clutched structure of fig. 2.

Fig. 4 is a schematic perspective view of a preferred embodiment of the present invention.

Fig. 5 is a schematic view showing the internal structure of fig. 4.

Fig. 6 is a schematic diagram illustrating the operation state of the preferred embodiment of the present invention.

Fig. 7 is a sectional view taken along line a-a in fig. 4.

Fig. 8 is a sectional view taken along line B-B in fig. 4.

The attached drawings indicate the following:

10. case 11, second restricted portion

12. Limiting groove 13 and first mandrel

14. Window 20, power source

30. Clutch structure 31, sun gear

311. Lower gear 312, upper gear

313. First axle hole 32, pendulum block

3201. Upper swing block 3202 and lower swing block

3203. Perforation 3204, second shaft hole

321. First restricted portion 3211, concave position

322. Fixed shaft 323, lateral support plate

33. Balance wheel 34, torsion spring

341. Spiral body 342 and two torsion arms

40. Output gear 41, upper output gear

42. And a lower output tooth sheet.

Detailed Description

Referring to fig. 1 to 8, a specific structure of a preferred embodiment of the present invention is shown, which is a torsion spring reset type clutch device, including a housing 10, a power source 20 installed in the housing 10, a clutch structure 30 and an output gear 40.

(see fig. 1 to 3) the clutch structure 30 includes a sun gear 31, a rocker 32, a balance 33, and a torsion spring 34, in the embodiment of the present application, the power source 20 is connected to the sun gear 31; the balance 32 is rotatably mounted on the central gear 31, and the balance 33 is mounted at two ends of the balance 32 and is respectively engaged with the central gear 31. When the power source 20 works to drive the central gear 31 to rotate, the swinging block 32 rotates and swings along with the power source so that the balance 33 is connected with the output gear 40, the central gear 31 drives the balance 33, the balance 33 drives the output gear 40, and the torsion spring deforms to store elastic potential energy when the swinging block 32 rotates and swings.

(see fig. 6) when the power source 20 stops working, the oscillating mass 32 is reset reversely by the elastic potential energy of the torsion spring 34, and the balance 33 is disconnected from the output gear 40. The power source 20 is either a stepping motor or a servo motor; therefore, the swing block 32 can automatically reset after swinging each time by using the arranged torsion spring 34, the swinging state of the swing block is not required to be controlled by a motor, and the forward and reverse rotation times of the motor can be reduced, so that the service life of the motor is effectively prolonged, and the regulation and control of the motor are simpler and more convenient.

Specifically, when the power source 20 transmits the normal rotation of the sun gear 31; the swinging block 32 swings along with the positive direction, so that the balance 33 at the left end is connected with the output gear 40 to drive the output gear 40; when the power source 20 drives the central gear 31 to rotate reversely, the swing block 32 swings reversely, so that the balance 33 at the right end is connected with the output gear 40 to drive the output gear 40.

(see fig. 5, 7 and 8). in the present embodiment, the torsion spring 34 includes a spiral 341 and two torsion arms 342; the swing block 32 is provided with a first limited portion 321, the housing 10 is provided with a second limited portion 11, and the two torsion arms 342 are both limited by two sides of the first limited portion 321 and the second limited portion 11. The spiral body 341 and the central gear 31 are coaxially disposed, and two sides of the first limiting portion 321 are formed with concave portions 3211 for the two torsion arms 342 to be correspondingly adapted. Specifically, when the swing block 32 swings in the forward direction, one of the torsion arms 342 moves in the forward direction along with the swing block 32, and the other torsion arm 342 is limited by the second limiting portion 11; when the swing block 32 swings in the reverse direction, the other torsion arm 342 moves in the reverse direction along with the swing block 32, and one torsion arm 342 is limited by the second limiting portion 11.

The two ends of the balance block 32 are provided with fixing shafts 322, and the balance 33 is rotatably mounted on the fixing shafts 322. Specifically, the swing block 32 includes an upper swing block 3201 and a lower swing block 3202 which are vertically spaced, and the fixing shaft 322 is connected to both ends of the upper swing block 3201 and the lower swing block 3202. The fixing shaft 322 extends upwards to form a limiting protrusion 3221, and the limiting protrusion 3221 protrudes out of the upper surface of the upper swing block 3201. The shell 10 is provided with a limit groove 12 for limiting the stroke of the swing block 32, and the limit convex part 3221 is limited in the limit groove 12; the limit groove 12 can ensure the reliable swing of the swing block 32. And the upper swing block 3201 and the lower swing block 3202 are integrally connected at one side by the lateral support plate 323, thereby improving the overall firmness of the swing block 32.

(see fig. 2 and 3) the central gear 31 includes a lower gear 311 and an upper gear 312 which are integrally formed, and the lower gear 311 is connected to the power source 20 through a plurality of reduction gears to increase the torque; the lower swing block 3202 is provided with a through hole 3203, and the upper gear 312 passes through the through hole 3203 and abuts against the bottom surface of the upper swing block 3201. The central gear 31 is provided with a first shaft hole 313, and the upper swing block 3201 is provided with a second shaft hole 3204; the housing 10 is provided with a first spindle 13, and the sun gear 31 and the swing block 32 are rotatably mounted to the first spindle 13 through the first shaft hole 313 and the second shaft hole 3204.

(see fig. 4-8) a window 14 is provided on one side of the casing 10, the output gear 40 is provided with at least an upper output tooth 41 and a lower output tooth 42, and the balance 33 is connected to the upper output tooth 41; at least lower output tine 42 is exposed at window 14 for connection to an external device.

The utility model discloses a design focus lies in: when the power source works to drive the central gear and the balance wheels to rotate, the torsion spring is arranged on the swinging block and is linked with the swinging block to swing, so that any balance wheel is connected with the output gear; when the power source stops working, the torsion spring provides a reset force for the swinging block to enable the swinging wheel to be disconnected with the output gear; the structure shows that the clutching state of the balance wheel and the output gear can be realized in a mechanical reset mode by using the torsion spring without using motor control. Therefore, the clutch device with the structure has the advantages that the clutch process is easier to realize and more reliable; and the number of positive and negative rotation times of the motor can be reduced, and the service life of the motor is prolonged.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.

Claims

1. A torsion spring reset type clutch device comprises a shell, a power source, a clutch structure and an output gear, wherein the power source, the clutch structure and the output gear are arranged in the shell; the method is characterized in that:

2. The torsion spring return clutch apparatus according to claim 1, wherein: the torsion spring comprises a spiral body and two torsion arms; the swing block is provided with a first limited part, and the shell is provided with a second limited part; the two torsion arms are limited on two sides of the first limited part and the second limited part;

when the swing block rotates towards the positive direction and swings, one torsion arm moves along the positive direction along with the swing block, and the other torsion arm is limited by the second limited part;

when the swing block rotates and swings reversely, the other torsion arm moves along the reverse direction along with the swing block, and one torsion arm is limited by the second limited part.

3. The torsion spring return clutch apparatus according to claim 2, wherein: the spiral body and the central gear are coaxially arranged, and concave positions for corresponding adaptation of the two torsion arms are formed on two sides of the first limited part.

4. The torsion spring return clutch apparatus according to claim 1, wherein: and fixed shafts are arranged at two ends of the swinging block, and the balance wheel can be rotatably arranged on the fixed shafts.

5. The torsion spring return clutch apparatus according to claim 4, wherein: the fixed shaft extends upwards to form a limiting convex part, the shell is provided with a limiting groove for limiting the stroke of the swinging block, and the limiting convex part is limited in the limiting groove.

6. The torsion spring return clutch apparatus according to claim 5, wherein: the swing block comprises an upper swing block and a lower swing block which are arranged at an upper interval and a lower interval, the fixed shaft is connected to two ends of the upper swing block and the lower swing block, and the limiting convex part protrudes out of the upper surface of the upper swing block.

7. The torsion spring return clutch apparatus according to claim 6, wherein: the upper swing block and the lower swing block are connected into a whole at one side through a lateral support plate.

8. The torsion spring return clutch apparatus according to claim 6, wherein: the central gear comprises a lower gear and an upper gear which are integrally formed, and the lower gear is connected with a power source; the lower swing block is provided with a through hole, and the upper gear penetrates through the through hole and abuts against the bottom surface of the upper swing block.

9. The torsion spring return clutch apparatus according to claim 8, wherein: the central gear is provided with a first shaft hole, and the upper swing block is provided with a second shaft hole; the casing is equipped with first dabber, and this sun gear and pendulum piece pass through first shaft hole and the rotatable installation in first dabber of second shaft hole.

10. The torsion spring return clutch apparatus according to claim 1, wherein: the power source is either a stepping motor or a servo motor.