阅读说明：本技术 具有单向超越离合器的旋转阻尼器 (Rotary damper with one-way overrunning clutch ) 是由 董殿存 杨胜男 于 2019-09-21 设计创作，主要内容包括：本发明公开了具有单向超越离合器的旋转阻尼器,涉及阻尼器技术领域,包括壳体,壳体上设有中间元件与转子,中间元件与转子之间设置有单向超越离合器,其中,壳体,包括底板与安装件,转子,转动连接于中间元件的中心位置处,中间元件,设置于安装件的内部,单向超越离合器,包括齿轮与至少一个行星齿轮,齿轮与行星齿轮啮合连接,至少一个行星齿轮位于转子的径向外表面和中间元件的径向内表面之间。本发明具有通过在中间元件与转子之间设置单向超越离合器,使得旋转阻尼器与汽车内部装置之间进行配合调节时,旋转阻尼器只在单向发挥力的作用,以实现单向阻尼的效果,并且本发明的单向阻尼器具有节约了成本,结构简单,操作方便的效果。(The invention discloses a rotary damper with a one-way overrunning clutch, which relates to the technical field of dampers and comprises a shell, wherein the shell is provided with an intermediate element and a rotor, and the one-way overrunning clutch is arranged between the intermediate element and the rotor, wherein the shell comprises a bottom plate and an installation part, the rotor is rotationally connected to the central position of the intermediate element, the intermediate element is arranged inside the installation part, the one-way overrunning clutch comprises a gear and at least one planetary gear, the gear is meshed with the planetary gear, and the at least one planetary gear is positioned between the radial outer surface of the rotor and the radial inner surface of the intermediate element. The one-way overrunning clutch is arranged between the intermediate element and the rotor, so that when the rotary damper is matched and adjusted with an internal device of an automobile, the rotary damper only exerts a force in one direction to realize the effect of one-way damping.)

1. A rotary damper with a one-way overrunning clutch comprises a shell (1), and is characterized in that an intermediate element (2) and a rotor (3) are arranged on the shell (1), the one-way overrunning clutch (4) is arranged between the intermediate element (2) and the rotor (3), wherein,

the shell (1) comprises a bottom plate (11) and a mounting piece (12), wherein the mounting piece (12) is positioned in the middle of the bottom plate (11) and is embedded with the bottom plate (11) to form an integral structure,

a rotor (3) rotatably connected to the intermediate element (2) at a central position thereof,

the middle element (2) is arranged inside the mounting piece (12), a central concave part (21) used for mounting the rotor (3) is arranged at the central position of the middle element (2), at least one dispersing concave part (22) is uniformly arranged on one side of the middle element (2) along the radial outer surface of the rotor (3), the central concave part (21) is communicated with the dispersing concave part (22),

a one-way overrunning clutch (4) comprising a gear (41) and at least one planetary gear (42), wherein the gear (41) is connected with the rotor (3) in a one-piece structure around the radial outer surface of the rotor (3), the gear (41) is in meshing connection with the planetary gear (42), at least one planetary gear (42) is positioned between the radial outer surface of the rotor (3) and the radial inner surface of the intermediate element (2) and is rotatably connected with the intermediate element (2), and the planetary gear (42) is positioned in the dispersion recess (22),

the inner side wall of the middle element (2) positioned in the dispersion concave part (22) is uniformly divided into a first wall (5) and a second wall (6) along the direction of a dot connecting line of dots of the dispersion concave part (22) and a dot of the central concave part (21), the first wall (5) is a smooth arc-shaped wall, a plurality of saw teeth (61) meshed with the planetary gear (42) are uniformly arranged on the second wall (6),

-when the rotor (3) rotates in one direction, the rotor (3) meshes with at least one of the planetary gears (42), at least one of the planetary gears (42) being in contact with the first wall (5), setting the direction of rotation to a first direction of rotation, when the intermediate element (2) and the casing (1) are relatively stationary, the planetary gears (42) idle between the rotor (3) and the intermediate element (2); when the rotor (3) rotates in the direction opposite to the first direction of rotation, the rotor (3) meshes with at least one of the planet gears (42), at least one of the planet gears (42) being in contact with the second wall (6) and meshing with the teeth (61) to effect rotation of the intermediate element (2) relative to the housing (1).

2. The rotary damper with one-way overrunning clutch according to claim 1, wherein there are three dispersion recesses (22) and three planetary gears (42), and three dispersion recesses (22) correspond to three planetary gears (42) one to one.

3. The rotary damper with one-way overrunning clutch according to claim 1, characterized in that a braking device (7) is provided between the housing (1) and the intermediate element (2),

the braking device (7) comprises a damping grease (71), the damping grease (71) being used to brake the movement of the intermediate element (2) relative to the housing (1).

4. The rotary damper with one-way overrunning clutch according to claim 1, characterized in that the rotor (3) comprises a rotating shaft (31) and a contact rod (32), one end of the rotating shaft (31) is rotatably connected to the intermediate element (2) and the other end extends to the inside of the central recess (21),

the contact rod (32) is designed into a rod-shaped structure with two grooves with rectangular cross sections symmetrically arranged on the outer side surface,

the rotating shaft (31) and the contact rod (32) are connected into an integrated structure.

5. The rotary damper with one-way overrunning clutch according to claim 1, wherein an inner diameter of the dispersion recess (22) is larger than an outer diameter of the planetary gear (42).

6. The rotary damper with the one-way overrunning clutch according to claim 1, wherein the bottom plate (11) is provided with two mounting holes (13), and the two mounting holes (13) are respectively arranged at two sides of the mounting part (12).

7. The rotary damper with one-way overrunning clutch according to claim 1, characterized in that a mounting cover (8) is mounted on the housing (1) on the side facing the rotor (3).

Technical Field

The present invention relates to the field of damper technology, and more particularly, it relates to a rotary damper having a one-way overrunning clutch.

Background

The damper is a device for providing resistance to movement and reducing movement energy. It is not a new technology to absorb energy and shock by damping, and various dampers have been used for absorbing vibration and dissipating energy in the industries of aerospace, aviation, war industry, firearms, automobiles and the like.

However, when the existing one-way damper is applied to an automotive interior device, the structure of the one-way damper is complex, the operation and installation are inconvenient, and importantly, in order to ensure reliable operation, parts in the existing one-way damper are made of metal materials, and the manufacturing materials and the processing cost are high.

Based on the above problems, there is a need for a one-way damper with simple structure, easy operation and low cost.

Disclosure of Invention

Aiming at the problem in practical application, the invention aims to provide a rotary damper with a one-way overrunning clutch, the one-way overrunning clutch is arranged between an intermediate element and a rotor, so that when the rotary damper is matched and adjusted with an automobile internal device, the rotary damper only acts on one-way acting force to realize the effect of one-way damping, and the one-way damper has the advantages of cost saving, simple structure and convenient operation, and the specific scheme is as follows:

a rotary damper with a one-way overrunning clutch comprises a shell, wherein an intermediate element and a rotor are arranged on the shell, the one-way overrunning clutch is arranged between the intermediate element and the rotor, wherein,

the shell comprises a bottom plate and a mounting piece, the mounting piece is positioned in the middle of the bottom plate and is embedded with the bottom plate to form an integrated structure,

a rotor rotatably connected to the intermediate member at a central position thereof,

the middle element is arranged inside the mounting piece, a central concave part used for mounting the rotor is arranged at the central position of the middle element, at least one dispersing concave part is uniformly arranged on one side of the middle element along the radial outer surface of the rotor, and the central concave part is communicated with the dispersing concave part,

a one-way overrunning clutch including a gear and at least one planetary gear, the gear being connected to the rotor in an integral structure around a radially outer surface of the rotor, the gear being in meshing engagement with the planetary gear, the at least one planetary gear being located between the radially outer surface of the rotor and a radially inner surface of the intermediate member and being rotatably connected to the intermediate member, the planetary gear being located in the dispersion recess,

the inner side wall of the middle element positioned in the dispersion concave part is uniformly divided into a first wall and a second wall along the direction of a dot connecting line of the dispersion concave part and the center concave part, the first wall is a smooth arc-shaped wall, a plurality of saw teeth meshed with the planetary gear are uniformly arranged on the second wall,

when the rotor rotates in one direction, the rotor meshes with at least one of the planetary gears, the at least one planetary gear is in contact with the first wall, the rotation direction is set to a first rotation direction when the intermediate member and the housing are relatively stationary, and the planetary gears idle between the rotor and the intermediate member; when the rotor rotates in a direction opposite to the first direction of rotation, the rotor engages at least one of the planet gears, at least one of the planet gears contacting the second wall and engaging the teeth to effect rotation of the intermediate member relative to the housing.

Through the technical scheme, when the damper is used, the damper is firstly installed in an automobile interior device, when the damper is adjusted, when the rotor rotates along a first rotating direction, the planet gear is contacted with the first wall under the condition that the rotor is meshed with the planet gear, the planet gear is separated from the intermediate element at the moment because the first wall is a smooth arc surface, the intermediate element is kept relatively static relative to the shell, at the moment, the damper does not exert the force, when the rotor rotates along the reverse direction of the first rotating direction, the planet gear is contacted with the second wall under the condition that the rotor is meshed with the planet gear, as the saw teeth are uniformly arranged on the second wall, the planet gear is combined with the second wall, at the moment, the rotor, the planet gear and the intermediate element are rigidly coupled, at the moment, the intermediate element rotates relative to the shell, and the one-way damper exerts the force in a one-way direction, thereby realize the normal function of attenuator, help improving the buffering effect of attenuator, simple structure, convenient operation.

Furthermore, the number of the dispersion concave parts and the number of the planetary gears are three, and the three dispersion concave parts correspond to the three planetary gears one by one.

Through above-mentioned technical scheme, guarantee that every planetary gear can realize switching over each other with first wall or with the contact of second wall.

Furthermore, a braking device is arranged between the shell and the middle element,

the braking means comprises damping grease for braking the movement of the intermediate element relative to the housing.

Through the technical scheme, the damping grease is utilized to realize the relative movement of the intermediate element relative to the shell, so that the normal use function of the damper is realized.

Further, the rotor comprises a rotating shaft and a contact rod, one end of the rotating shaft is rotatably connected to the intermediate element, the other end of the rotating shaft extends to the inside of the central concave part,

the contact rod is designed into a rod-shaped structure with two grooves with rectangular cross sections symmetrically arranged on the outer side surface,

the rotating shaft and the contact rod are connected into an integrated structure.

Through the technical scheme, the rotor is conveniently controlled, and the active function of the rotor is realized.

Further, the inner diameter of the dispersion recess is larger than the outer diameter of the planetary gear.

Through above-mentioned technical scheme, guarantee that the rotation direction of rotor is different, planetary gear can realize switching over each other with first wall or with the contact of second wall to realize one-way freewheel clutch's normal separation and reunion function.

Furthermore, two mounting holes are formed in the bottom plate, and the two mounting holes are formed in two sides of the mounting piece respectively.

According to the technical scheme, the damper is mounted on the automotive interior device through the mounting hole.

Further, a mounting cover is mounted on one side of the housing facing the rotor.

Through the technical scheme, the rotor and the one-way overrunning clutch are protected, and the rotor and the one-way overrunning clutch are prevented from being separated from the middle element.

Further, at least the one-way overrunning clutch is made of metal, and all parts except the one-way overrunning clutch are made of plastic.

With the above technical solution, for reliable operation, when there is a relatively high working torque, at least the one-way overrunning clutch is made of metal, the components other than the one-way overrunning clutch are made of plastic, and the metal components represent a large part of the final cost of the product, both due to the high cost of materials and the processing cost, and the use of plastic instead of metal can reduce the cost of materials and the processing cost of the one-way damper, thereby reducing the production cost as a whole.

Compared with the prior art, the invention has the following beneficial effects: the one-way overrunning clutch is arranged between the intermediate element and the rotor, so that when the rotary damper is matched and adjusted with an automobile internal device, the rotary damper only exerts a one-way acting force to realize a one-way damping effect.

Drawings

FIG. 1 is a perspective view of the present invention (with the mounting cover removed);

FIG. 2 is a view showing a state where a rotor rotates in a direction opposite to a first rotation direction in the present invention;

FIG. 3 is a view showing a state in which a rotor rotates in a first rotational direction according to the present invention;

FIG. 4 is a schematic structural view of the housing of the present invention;

fig. 5 is a front view of the present invention (with the mounting cover installed).

Reference numerals: 1. a housing; 11. a base plate; 12. a mounting member; 13. mounting holes; 2. an intermediate element; 21. a central recess; 22. a dispersion recess; 3. a rotor; 31. a rotating shaft; 32. a contact lever; 4. a one-way overrunning clutch; 41. a gear; 42. a planetary gear; 5. a first wall; 6. a second wall; 61. saw teeth; 7. a braking device; 71. damping grease; 8. and (6) installing a cover.

Detailed Description

The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited to these examples.

Referring to fig. 1-4, a rotary damper with a one-way overrunning clutch comprises a housing 1, wherein an intermediate element 2 and a rotor 3 are arranged on the housing 1, and a one-way overrunning clutch 4 is arranged between the intermediate element 2 and the rotor 3, wherein the housing 1 comprises a bottom plate 11 and a mounting part 12, the mounting part 12 is arranged at the middle position of the bottom plate 11 and is embedded with the bottom plate 11 to form an integrated structure, the rotor 3 is rotatably connected to the central position of the intermediate element 2, the intermediate element 2 is arranged inside the mounting part 12, a central concave part 21 for mounting the rotor 3 is arranged at the central position of the intermediate element 2, at least one dispersing concave part 22 is uniformly arranged on one side of the intermediate element 2 along the radial outer surface of the rotor 3, the central concave part 21 is communicated with the dispersing concave part 22, the one-way overrunning clutch 4 comprises a gear 41 and at least one planetary gear 42, and the gear 41 is connected with the rotor 3, the gear 41 is engaged with the planetary gear 42, at least one planetary gear 42 is located between the radial outer surface of the rotor 3 and the radial inner surface of the intermediate element 2 and is rotatably connected to the intermediate element 2, the planetary gear 42 is located in the dispersion concave portion 22, the inner side wall of the intermediate element 2 located in the dispersion concave portion 22 is uniformly divided into a first wall 5 and a second wall 6 along the dot connecting line direction of the dots of the dispersion concave portion 22 and the center concave portion 21, the first wall 5 is provided with a smooth arc-shaped wall, the second wall 6 is uniformly provided with a plurality of saw teeth 61 engaged with the planetary gear 42, when the rotor 3 rotates along one direction, the rotor 3 is engaged with at least one planetary gear 42, at least one planetary gear 42 is in contact with the first wall 5, the rotation direction is set as the first rotation direction, and the intermediate element 2 is relatively stationary with the housing 1, the planetary gears 42 idle between the rotor 3 and the intermediate element 2; when the rotor 3 is rotated in the direction opposite to the first direction of rotation, the rotor 3 meshes with at least one of the planet gears 42, at least one of the planet gears 42 contacts the second wall 6 and meshes with the teeth 61 to effect rotation of the intermediate member 2 relative to the housing 1. In this way, when the damper of the present invention is used, the damper is first installed in the interior device of the automobile, and during adjustment, when the rotor 3 rotates in the first rotational direction, the planet gears 42 are in contact with the first wall 5 when the rotor 3 is engaged with the planet gears 42, and since the first wall 5 is a smooth arc surface, the planet gears 42 are separated from the intermediate element 2 at this time, and the intermediate element 2 is kept relatively stationary with respect to the housing 1, at this time, the damper does not function, and when the rotor 3 rotates in the opposite direction of the first rotational direction, the planet gears 42 are in contact with the second wall 6 when the rotor 3 is engaged with the planet gears 42, and since the serrations 61 are uniformly formed on the second wall 6, the planet gears 42 are engaged with the second wall 6, at this time, the rotor 3, the planet gears 42 and the intermediate element 2 are rigidly coupled, and at this time, the intermediate element 2 rotates with respect to the housing 1, the one-way damper acts in a one-way manner, so that the normal function of the damper is realized, the structure is simple, and the operation is convenient.

When the distribution positions of the first wall 5 and the second wall 6 in the dispersion recess 22 are switched, the one-way damper achieves a force acting in the direction opposite to the above-described acting force, thereby achieving a damping effect in the other direction.

In addition, at least the one-way overrunning clutch 4 is made of metal, and the components other than the one-way overrunning clutch 4 are made of plastic. Thus, for reliable operation, when there is a relatively high operating torque, at least the one-way overrunning clutch 4 is made of metal, and the parts other than the one-way overrunning clutch 4 are made of plastic, the metal parts representing a large part of the final cost of the product, both due to the high cost of materials and the processing cost, and the use of plastic instead of metal reduces the cost of materials and the processing cost of the one-way damper, thereby reducing the production cost as a whole.

Three dispersion recesses 22 and three planetary gears 42 are provided, and the three dispersion recesses 22 correspond to the three planetary gears 42 one by one. In this way it is ensured that each planet gear 42 can be switched in contact with the first wall 5 or with the second wall 6.

The inner diameter of the dispersion recess 22 is larger than the outer diameter of the planetary gear 42. Thus, when the rotation direction of the rotor 3 is different, the planetary gears 42 can be switched to be contacted with the first wall 5 or the second wall 6, so that the normal clutch function of the one-way overrunning clutch 4 is realized.

The rotor 3 comprises a rotating shaft 31 and a contact rod 32, one end of the rotating shaft 31 is rotatably connected to the intermediate element 2, the other end of the rotating shaft extends into the central concave part 21, the contact rod 32 is a rod-shaped structure with two cross sections being rectangular grooves, the outer side surfaces of the rod-shaped structure are symmetrically provided with the contact rod 32, and the rotating shaft 31 and the contact rod 32 are connected into an integral structure. Thus, the rotor 3 is conveniently controlled, and the active function of the rotor 3 is realized.

Between the housing 1 and the intermediate element 2 a braking device 7 is arranged, which braking device 7 comprises a damping grease 71, which damping grease 71 is used to brake the movement of the intermediate element 2 relative to the housing 1. In this way, a relative movement between the intermediate element 2 with respect to the housing 1 is achieved by means of the damping grease 71, so that the normal use function of the damper is achieved.

Two mounting holes 13 are formed in the bottom plate 11, and the two mounting holes 13 are respectively formed in two sides of the mounting piece 12. Thus, the damper of the present invention is mounted to the automobile interior device using the mounting hole 13.

Referring to fig. 5, the housing 1 is mounted with a mounting cover 8 on a side facing the rotor 3. In this way, the mounting cover 8 may serve to protect the rotor 3 and the one-way overrunning clutch 4, helping to prevent the rotor 3 and the one-way overrunning clutch 4 from being disengaged from the intermediate member 2.

The specific implementation principle of the invention is as follows: when the damper of the present invention is used, the damper is first installed in the interior device of the automobile, and during adjustment, when the rotor 3 rotates in the first rotation direction, the planet gears 42 are in contact with the first wall 5 when the rotor 3 is engaged with the planet gears 42, the planet gears 42 are separated from the intermediate element 2 at this time because the first wall 5 is a smooth arc surface, the intermediate element 2 is kept relatively stationary with respect to the housing 1, and at this time, the damper does not function, when the rotor 3 rotates in the opposite direction of the first rotation direction, the planet gears 42 are in contact with the second wall 6 when the rotor 3 is engaged with the planet gears 42, the planet gears 42 are coupled with the second wall 6 because the serrations 61 are uniformly formed on the second wall 6, at this time, the rotor 3, the planet gears 42 and the intermediate element 2 are rigidly coupled, and at this time, the intermediate element 2 rotates with respect to the housing 1, the one-way damper acts in a one-way manner, so that the normal function of the damper is realized, the buffering effect of the damper is improved, the structure is simple, and the operation is convenient.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.