CN210265740U

CN210265740U - Mechanical device for outputting torque during swinging

Info

Publication number: CN210265740U
Application number: CN201921095086.5U
Authority: CN
Inventors: 王海
Original assignee: Taiyuan Microscience Research Technology Co ltd
Current assignee: Taiyuan Microscience Research Technology Co ltd
Priority date: 2019-07-14
Filing date: 2019-07-14
Publication date: 2020-04-07
Anticipated expiration: 2029-07-14

Abstract

The utility model relates to a mechanical transmission technical field specifically is a mechanical device of output moment of torsion during swing, aims at solving the current mechanical device's that lacks output moment of torsion in the swing technical problem. The following technical scheme is adopted: the swing frame comprises a rack and a rectangular swing frame, wherein a first rotating shaft and a second rotating shaft are vertically inserted into a group of opposite surfaces of the swing frame respectively, the first rotating shaft and the second rotating shaft are coaxially arranged and are rotatably installed on the swing frame, the first rotating shaft and the second rotating shaft are rotatably supported on the rack and are limited to rotate in a single direction through a first ratchet mechanism and a second ratchet mechanism respectively, the allowable rotating directions of the first ratchet mechanism and the second ratchet mechanism are opposite, and the first rotating shaft and the second rotating shaft are respectively in interference fit with a first bevel gear and a second bevel gear; and a third rotating shaft is vertically inserted into one of the other group of opposite surfaces of the swinging frame, is rotatably supported on the swinging frame and is sleeved with a third bevel gear in an interference manner, and the third bevel gear is simultaneously meshed with the first bevel gear and the second bevel gear.

Description

Mechanical device for outputting torque during swinging

Technical Field

The utility model relates to a mechanical transmission technical field specifically is a mechanical device of output torque during swing.

Background

On some products, such as children's toys, it is desirable to output torque during oscillation. In the existing mechanical field, a related mechanical device is lacked.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving the current technical problem who lacks the mechanical device of output torque in the swing. Therefore, the utility model provides a mechanical device of output moment of torsion during swing.

The utility model provides a technical scheme that its technical problem adopted is:

the mechanical device for outputting torque during swinging comprises a rack and a rectangular swinging frame, wherein a first rotating shaft and a second rotating shaft are respectively vertically inserted into a group of opposite surfaces of the swinging frame, the first rotating shaft and the second rotating shaft are coaxially arranged and are rotatably installed on the swinging frame, the outer end part of the first rotating shaft and the outer end part of the second rotating shaft are rotatably supported on the rack and are limited to rotate in a single direction by a first ratchet mechanism and a second ratchet mechanism respectively, the allowable rotating directions of the first ratchet mechanism and the second ratchet mechanism are opposite, and a first bevel gear and a second bevel gear are respectively sleeved on the inner end part of the first rotating shaft and the inner end part of the second rotating shaft in an interference manner; and a third rotating shaft is vertically inserted into one of the opposite surfaces of the other group of the oscillating frame, the third rotating shaft is rotatably supported on the oscillating frame, a third bevel gear is sleeved in the middle of the third rotating shaft in an interference manner, and the third bevel gear is simultaneously meshed with the first bevel gear and the second bevel gear.

The input of the whole device is the swing of the swing frame, wherein the swing can be manual force or a mechanism, and the output is the rotation of the third rotating shaft. The whole device has the function of generating a unidirectional rotation torque when swinging up and down in two directions.

The utility model has the advantages that:

the utility model provides a mechanical device of output torque during swing, including the three bevel gear of meshing, wherein two parallel arrangement's bevel gear inject unidirectional rotation and allow rotation opposite direction through ratchet, when swing frame swing, middle bevel gear can rotate and drive another bevel gear that can rotate simultaneously round bevel gear that can not rotate, because two ratchet's reverse setting and bevel gear's symmetrical structure arrange, can realize middle bevel gear's continuous syntropy rotatory, whole structural design is ingenious, the structure is comparatively simple, the transmission is reliable, the cost of manufacture is low, the processing is easy, be suitable for children's toys etc. need on the product of output torque when the swing.

Drawings

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

Detailed Description

Referring to fig. 1, the utility model discloses a mechanical device of output moment of torsion during swing, including frame 1, the swing frame 2 of rectangle, a set of opposite face of swing frame 2 is perpendicular to be inserted respectively first pivot 3, second pivot 4, first pivot 3 and second pivot 4 coaxial arrangement and all rotate and install on swing frame 2, the frame outer tip of first pivot 3 and the frame outer tip of second pivot 4 all rotate and support on frame 1 and respectively through first ratchet 5 and second ratchet 6 limited unidirectional rotation, the direction of allowable rotation of first ratchet 5 and second ratchet 6 is opposite, the frame inner tip of first pivot 3 and the frame inner tip of second pivot 4 interference fit respectively have first bevel gear 7 and second bevel gear 8; a third rotating shaft 9 is vertically inserted into one of the other group of opposite surfaces of the swinging frame 2 in a penetrating manner, the third rotating shaft 9 is rotatably supported on the swinging frame 2, a third bevel gear 10 is sleeved in the middle of the swinging frame 2 in an interference manner, and the third bevel gear 10 is simultaneously meshed with the first bevel gear 7 and the second bevel gear 8.

The allowable rotation directions of the two ratchet mechanisms are specifically given below to more clearly explain the action mechanism of the device. The allowable rotation direction of the first ratchet mechanism 5 is given as a rightward rotation in the top view angle shown in fig. 1, and the allowable rotation direction of the second ratchet mechanism 6 is given as a leftward rotation in the top view angle shown in fig. 1. The following descriptions of "left", "right", "up", "down", "inside" and "outside" for describing the rotation direction are all described in the top view angle state of fig. 1. The method comprises the following specific steps:

when the swing frame 2 drives the third rotating shaft 9 to swing inwards, the third bevel gear 10 tends to rotate left for both the first bevel gear 7 and the second bevel gear 8, but the first bevel gear 7 cannot rotate left under the action of the first ratchet mechanism 5, so that at this time, the third bevel gear 10 can only rotate downwards along the teeth of the first bevel gear 7 according to the top view angle shown in fig. 1, and the motion state of the second bevel gear 8 is analyzed: the third bevel gear 10 rotates downwards and revolves inwards at the same time, the rotation of the third bevel gear 10 enables the second bevel gear 8 to have a left-turning trend, the revolution of the third bevel gear 10 also enables the second bevel gear 8 to have a left-turning trend, so that the rotating direction of the second bevel gear 8 is fixed, namely the second bevel gear 8 rotates leftwards, and just the second bevel gear 8 can only rotate leftwards under the action of the second ratchet mechanism 6, so that the uniqueness and feasibility of the movement of the whole device are determined, namely when the third rotating shaft 9 swings inwards, the third bevel gear 10 rotates downwards.

When the swing frame 2 drives the third rotating shaft 9 to swing outwards, the third bevel gear 10 tends to rotate to the right for both the first bevel gear 7 and the second bevel gear 8, but the second bevel gear 8 cannot rotate to the right under the action of the second ratchet mechanism 6, so that at this time, the third bevel gear 10 can only rotate downwards along the teeth of the second bevel gear 8 according to the top view angle shown in fig. 1, and the motion state of the first bevel gear 7 is analyzed: the third bevel gear 10 revolves outwards while rotating downwards, the rotation of the third bevel gear 10 makes the first bevel gear 7 have a tendency of turning right, and the revolution of the third bevel gear 10 also makes the first bevel gear 7 have a tendency of turning right, so that the rotating direction of the first bevel gear 7 is fixed, namely, the first bevel gear 7 rotates right, and just the first bevel gear 7 can only rotate right under the action of the first ratchet mechanism 5, therefore, the uniqueness and feasibility of the movement of the whole device are determined, namely, when the third rotating shaft 9 swings outwards, the third bevel gear 10 rotates downwards.

In view of the above two swing states, the third bevel gear 10 rotates downward whether the third shaft 9 swings inward or outward, so that the swing is converted into a single direction rotation, and the purpose of outputting torque during swing is achieved.

Further, the first ratchet mechanism 5 and the second ratchet mechanism 6 both comprise a ratchet fixed on the frame 1 and a pawl hinged on the first rotating shaft 3 or the second rotating shaft 4, and the pawl is meshed with the ratchet. When the ratchet wrench is used specifically, an existing ratchet wrench can be directly welded on the rack 1, and then the first rotating shaft or the second rotating shaft 4 is penetrated in the middle of the wrench.

Further, a fourth bevel gear 11 with a diameter smaller than that of the third bevel gear 10 is further arranged at the inner end of the frame of the third rotating shaft 9 in an interference fit manner; the first rotating shaft 3 or the second rotating shaft 4 is a hollow shaft, a fourth rotating shaft 12 is inserted into the hollow shaft in a clearance insertion mode, two ends of the fourth rotating shaft 12 extend out of the hollow shaft, a fifth bevel gear 13 meshed with the fourth bevel gear 11 is sleeved at the inner end portion of the frame of the fourth rotating shaft 12 in an interference fit mode, and the outer end portion of the frame of the fourth rotating shaft 12 is rotatably supported on the rack 1. Here, the fourth rotation shaft 12 is used as an output shaft to output the unidirectional rotation of the fixed shaft. The specific structural mechanism was analyzed as follows:

still taking the allowed direction of the ratchet as an example, the third bevel gear 10 rotates downwards during the whole swing process of the swing frame 2, so as to drive the fourth bevel gear 11 to rotate downwards all the time. The fifth bevel gear 13 is meshed with the fourth bevel gear 11, and the fifth bevel gear 13 is rotatably supported on the frame 1 through the fourth rotating shaft 12, i.e. is free, and which direction the fifth bevel gear 13 rotates is completely determined by the movement of the fourth bevel gear 11. Since the fourth bevel gear 11 always moves downward when swinging, the fifth bevel gear 13 engaged with the fourth bevel gear 11 always rotates leftward during swinging, that is, outputs fixed-axis type unidirectional rotation. The structure further improved on the basis of the original device can be used under the condition that the torque of the fixed shaft is required, and the application range of the device is expanded.

Further, a bearing seat 14 is fixed at the inner end of the frame of the hollow shaft, and a bearing for supporting the fourth rotating shaft 12 is installed in the bearing seat 14, so that the shaft swing of the fourth rotating shaft 12 can be reduced, and the transmission stability of the fourth rotating shaft is improved.

Furthermore, the first rotating shaft 3, the second rotating shaft 4 and the third rotating shaft 9 are all mounted on the swing frame 2 through bearings, and the frame outer ends of the first rotating shaft 3, the second rotating shaft 4 and the fourth rotating shaft 12 are all supported on the frame 1 through bearings.

To facilitate connection of the power input structure, the swing frame 2 is provided with an input lever 15 for inputting power. Here, the input power may be a manual or mechanical swing.

While the invention has been particularly shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. Mechanical device of output torque when swing, its characterized in that: the device comprises a rack (1) and a rectangular swing frame (2), wherein a first rotating shaft (3) and a second rotating shaft (4) are respectively vertically inserted into a group of opposite surfaces of the swing frame (2), the first rotating shaft (3) and the second rotating shaft (4) are coaxially arranged and rotatably mounted on the swing frame (2), the outer end part of the first rotating shaft (3) and the outer end part of the second rotating shaft (4) are rotatably supported on the rack (1) and are limited to rotate in a single direction through a first ratchet mechanism (5) and a second ratchet mechanism (6), the allowable rotating directions of the first ratchet mechanism (5) and the second ratchet mechanism (6) are opposite, and a first bevel gear (7) and a second bevel gear (8) are respectively sleeved on the inner end part of the first rotating shaft (3) and the inner end part of the second rotating shaft (4); a third rotating shaft (9) is vertically inserted into one of the other group of opposite surfaces of the swinging frame (2), the third rotating shaft (9) is rotatably supported on the swinging frame (2) and is sleeved with a third bevel gear (10) in an interference manner, and the third bevel gear (10) is meshed with the first bevel gear (7) and the second bevel gear (8) simultaneously.

2. The oscillating torque output mechanism of claim 1, further comprising: the first ratchet mechanism (5) and the second ratchet mechanism (6) comprise ratchets fixed on the rack (1) and pawls hinged on the first rotating shaft (3) or the second rotating shaft (4), and the pawls are meshed with the ratchets.

3. The oscillating torque output mechanism of claim 1, further comprising: a fourth bevel gear (11) with the diameter smaller than that of the third bevel gear (10) is further sleeved at the inner end part of the frame of the third rotating shaft (9) in an interference manner; the first rotating shaft (3) or the second rotating shaft (4) is a hollow shaft, a fourth rotating shaft (12) is inserted into the hollow shaft in a clearance mode, two ends of the fourth rotating shaft (12) extend out of the hollow shaft, a fifth bevel gear (13) meshed with the fourth bevel gear (11) is arranged at the inner end portion of the frame of the fourth rotating shaft (12) in an interference fit mode, and the outer end portion of the frame of the fourth rotating shaft (12) is rotatably supported on the rack (1).

4. The oscillating torque output mechanism of claim 3, further comprising: a bearing seat (14) is fixed at the inner end part of the frame of the hollow shaft, and a bearing used for supporting the fourth rotating shaft (12) is installed in the bearing seat (14).

5. The oscillating torque output mechanism of claim 4, further comprising: the first rotating shaft (3), the second rotating shaft (4) and the third rotating shaft (9) are all installed on the swinging frame (2) through bearings, and the outer end parts of the first rotating shaft (3), the second rotating shaft (4) and the fourth rotating shaft (12) are all supported on the rack (1) through bearings.

6. The mechanical device for outputting torque at the time of oscillation according to any one of claims 1 to 5, wherein: the swing frame (2) is provided with an input lever (15) for inputting power.