CN216043260U

CN216043260U - High-load damping rotating shaft device

Info

Publication number: CN216043260U
Application number: CN202120698682.3U
Authority: CN
Inventors: 蔺占民
Original assignee: Shanghai Mengrui Plastic Co ltd
Current assignee: Shanghai Mengrui Plastic Co ltd
Priority date: 2021-04-06
Filing date: 2021-04-06
Publication date: 2022-03-15
Anticipated expiration: 2031-04-06

Abstract

The utility model belongs to the technical field of rotating shafts, and particularly relates to a high-load damping rotating shaft device. The utility model provides a high-load damping rotating shaft device which comprises a sealing cavity, wherein the sealing cavity comprises a first cavity and a second cavity, medium oil is arranged in the first cavity and the second cavity, the first cavity and the second cavity are separated by a sliding part, and a first oil duct is arranged in the sliding part; an oil control assembly is arranged in the first cavity; the medium oil flows into the second cavity from the first cavity through the gap between the sliding piece and the inner wall of the sealing cavity; the medium oil flows into the first cavity from the second cavity through a gap between the sliding piece and the inner wall of the sealing cavity and the first oil passage; the relative change of the sizes of the first cavity and the second cavity is realized through the matching of guide groove and guide strips.

Description

High-load damping rotating shaft device

Technical Field

The utility model belongs to the technical field of rotating shafts, and particularly relates to a high-load damping rotating shaft device.

Background

With the continuous development of economy, the requirements of people on the living quality are gradually improved, which can be reflected in the requirements on the use performance of products such as production equipment and living equipment, and when a cover of the equipment, such as a furnace cover and a toilet cover, is closed at present, the contact part of the cover and the equipment cannot be closed slowly due to the force action, so that strong collision occurs, the equipment is damaged, and larger noise is caused, so that a buffer is required for the slow closing of the production equipment and the living equipment. The buffer on the market has more complicated internal design, is not favorable to efficient production, and can not adapt to the requirement of slowly closing.

So need one kind and can provide damped pivot mechanism, present damping pivot mechanism generally adopts mechanical structure such as torsional spring to produce damping effect, but elastic mechanical mechanism all has its fatigue life, can cause the coefficient of elasticity to change after long-time the use, elasticity loses even, so this kind of damping pivot mechanism needs frequent change, not only can appear the condition that damping effect loses if long-time the use is not changed, still can send the noise of dazzling because of mechanical component's wearing and tearing and friction, influence user's use and experience.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a high-load damping rotating shaft device which comprises a sealing cavity, wherein the sealing cavity comprises a first cavity and a second cavity, medium oil is arranged in the first cavity and the second cavity, the first cavity and the second cavity are separated by a sliding part, and a first oil duct is arranged in the sliding part; an oil control assembly is arranged in the first cavity;

the medium oil flows into the second cavity from the first cavity through the gap between the sliding piece and the inner wall of the sealing cavity;

the medium oil flows into the first cavity from the second cavity through a gap between the sliding piece and the inner wall of the sealing cavity and the first oil passage;

the relative change of the sizes of the first cavity and the second cavity is realized through the matching of guide groove and guide strips.

As a preferred technical scheme, the sealing cavity is formed by fixedly connecting a shell and a sealing cover, and the shell is a hollow revolving body with one open end.

As a preferable technical solution, the slider includes a damping portion and a transmission portion, the damping portion, the inner wall of the housing and the end face of the housing form the first cavity, and the transmission portion, the inner wall of the housing and the sealing cover form the second cavity.

As a preferred technical scheme, the oil control assembly comprises an oil control sleeve and a movable plug, the oil control sleeve is a hollow revolving body with one open end, one open end of the oil control sleeve is fixedly connected with the damping part, the movable plug is movably arranged inside the oil control sleeve, the movable plug is arranged in a clamping manner to block the shape of the first oil passage, the end face of the oil control sleeve is provided with a second oil passage, and the second oil passage is arranged in a clamping manner to limit the shape of the movable plug.

As a preferable technical scheme, the oil control assembly is a reed, the reed completely covers the first oil passage in a free state, the reed is fixedly connected with the damping part, and a connection point is located on the same side of the first oil passage.

As a preferred technical scheme, the oil control assembly is a plunger, the plunger is arranged in the first oil duct and comprises a plugging surface and at least 2 limiting arms, the plugging surface is fixedly connected with the limiting arms, the plugging surface and the limiting arms are respectively arranged on two end sides of the first oil duct, the plugging surface covers the first oil duct, protrusions extending out of the boundary range of the first oil duct are arranged at the end parts of the limiting arms, and the distance between the plugging surface and the protrusions of the limiting arms is greater than the length of the first oil duct.

As a preferred technical scheme, the device further comprises a rotating part, wherein the rotating part comprises a rotating shaft and a first transmission part; the rotating shaft penetrates through the sealing cover, the transmission part is provided with a second transmission piece, and the first transmission piece and the second transmission piece are in matched transmission.

As a preferable technical solution, the first transmission member is a guide groove which is rotatably arranged, and the second transmission member is a guide bar which is arranged in cooperation with the guide groove; or the second transmission piece is a guide groove which is arranged in a rotating mode, and the first transmission piece is a guide bar which is matched with the guide groove.

As a preferable technical solution, a limiting mechanism is provided in cooperation between an outer wall of the sliding member and an inside of the housing, and the limiting mechanism prohibits relative rotation between the sliding member and the housing.

As a preferred technical scheme, an elastic mechanism is arranged in the first cavity, and two ends of the elastic mechanism are respectively stressed on the damping part and the inner side end face of the shell.

Has the advantages that:

(1) the utility model provides a high-load damping rotating shaft device, which changes the resistance of a turnover component in the opening and closing process by controlling the different flow rates of medium oil in the opening and closing process of the turnover component, wherein the medium oil is close to free flow and almost has no resistance in the opening process, and the medium oil needs to flow through a narrow space in the closing process, so that the resistance is increased, the turnover component is prevented from being quickly closed, and the slow closing effect is achieved.

(2) The utility model provides a high-load damping rotating shaft device, which realizes a damping effect through the flowing of medium oil, wherein the medium oil plays a role in adjusting resistance, meanwhile, a part of the medium oil flows into a matching position of a transmission assembly, and a part of the medium oil is also retained in a position of a limiting structure, namely, the medium oil exists in the middle of a surface with friction in the device, and simultaneously plays a role of lubricating oil, thereby avoiding the abrasion and noise generated by the friction of a mechanical structure, ensuring the use effect for a long time, prolonging the service life of the rotating shaft device and improving the use experience of a user.

(3) The utility model provides a high-load damping rotating shaft device, which keeps the rotating stability of the device through the flowing of medium oil, avoids the situation of sudden large-amplitude rotation, is provided with an elastic component at the bottom of a sealing cavity to assist in generating a damping effect, is compressed when a turnover part is closed to generate a resisting effect and enhance the damping effect, and is stretched to release the elastic potential energy of the turnover part when the turnover part is opened, so that the opening process is more labor-saving.

(4) The utility model provides a high-load damping rotating shaft device, which is driven by using a transmission mode of matching a guide bar with a guide groove, and the shape and the size of the guide bar guide groove can bear larger torque and load compared with the shape and the size of a transmission part in other transmission modes, so that the device can be suitable for occasions with higher load requirements and higher requirements on the strength of a transmission mechanism.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

The drawings of the embodiments of the disclosure only relate to the structures related to the embodiments of the disclosure, and other structures can refer to the common design.

For purposes of clarity, the thickness of layers or regions in the figures used to describe embodiments of the present disclosure are exaggerated or reduced, i.e., the figures are not drawn on a true scale.

FIG. 1 is a schematic structural view of a high-load damping rotary shaft device provided in embodiment 1;

fig. 2 is an exploded view of a high-load damping rotary shaft device provided in example 1;

FIG. 3 is a schematic structural view of a high-load damping rotary shaft device provided in embodiment 2;

FIG. 4 is a schematic diagram showing an exploded structure of a high-load damping rotary shaft device provided in example 2;

FIG. 5 is a schematic structural view of a damper portion in embodiment 3;

FIG. 6 is a perspective view schematically showing the structure of a damper unit in embodiment 4;

FIG. 7 is a schematic structural view of a plunger in embodiment 4;

the hydraulic oil-control device comprises a sliding part 1, a first oil channel 11, a damping part 12, a transmission part 13, a second transmission part 131, a shell 2, a sealing cover 3, an oil control sleeve 41, a movable plug 42, a reed 43, a plunger 44, a blocking surface 441, a limiting arm 442, a rotating part 5, a rotating shaft 51, a first transmission part 52 and an elastic mechanism 6.

Detailed Description

The utility model will be further understood by reference to the following detailed description of preferred embodiments of the utility model and the examples included therein.

When describing embodiments of the present application, the use of "preferred," "preferably," "more preferred," and the like, is meant to refer to embodiments of the utility model that may provide certain benefits, under certain circumstances. However, other embodiments may be preferred, under the same or other circumstances. In addition, the recitation of one or more preferred embodiments does not imply that other embodiments are not useful, nor is it intended to exclude other embodiments from the scope of the utility model.

In this document, relational terms such as first, second, and the like may be used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities. Furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a component, apparatus, or device that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such component, apparatus, or device.

When a component, element, or layer is referred to as being "on," "bonded to," "connected to," or "coupled to" another element or layer, it may be directly on, bonded to, connected to, or coupled to the other element, or layer, or intervening elements or layers may be present. In contrast, when an element is referred to as being "directly on," "directly coupled to," "directly connected to" or "directly coupled to" another element or layer, there may be no intervening elements or layers present. Other words used to describe the relationship between elements should be interpreted in a similar manner (e.g., "between … …" versus "directly between … …," "adjacent" versus "directly adjacent," etc.).

The utility model provides a high-load damping rotating shaft device which comprises a sealing cavity, wherein the sealing cavity comprises a first cavity and a second cavity, medium oil is arranged in the first cavity and the second cavity, the first cavity and the second cavity are separated by a sliding part, and a first oil duct is arranged in the sliding part; an oil control assembly is arranged in the first cavity;

In some preferred embodiments, the sealed cavity is formed by fixedly connecting a shell and a sealed cover, and the shell is a hollow revolving body with one open end.

In some preferred embodiments, the slider includes a damping portion and a transmission portion, the damping portion forms the first cavity with the inner wall of the housing and the end face of the housing, and the transmission portion forms the second cavity with the inner wall of the housing and the sealing cover.

In some preferred embodiments, the oil control assembly includes an oil control sleeve and a movable plug, the oil control sleeve is a hollow revolving body with an opening at one end, the opening end of the oil control sleeve is fixedly connected with the damping portion, the movable plug is movably arranged inside the oil control sleeve, the movable plug is arranged in a shape of blocking the first oil passage in a clamping manner, a second oil passage is arranged on the end surface of the oil control sleeve, and the second oil passage is arranged in a shape of limiting the movable plug in a clamping manner.

Preferably, the first oil passage is a circular through hole; the movable plug is a spherical part or an oblate spherical part, and the maximum diameter of the movable plug is larger than the minimum diameter of the first oil duct;

preferably, the second oil duct is a square through hole, a triangular through hole or a polygonal through hole, and the movable plug cannot penetrate through the second oil duct.

Preferably, an oil leakage port is formed in the side face of the oil control piece.

In some preferred embodiments, the oil control assembly is a reed, the reed completely covers the first oil passage in a free state, the reed is fixedly connected with the damping portion, and a connection point is located on the same side of the first oil passage.

In some preferred embodiments, the oil control assembly is a plunger, the plunger is disposed inside the first oil passage, the plunger includes a plugging surface and at least 2 limiting arms, the plugging surface is fixedly connected with the limiting arms, the plugging surface and the limiting arms are respectively disposed on two end sides of the first oil passage, the plugging surface covers the first oil passage, a protrusion extending out of a boundary range of the first oil passage is disposed at an end of the limiting arm, and a distance between the plugging surface and the protrusion of the limiting arm is greater than a length of the first oil passage.

In some preferred embodiments, the device further comprises a rotating member, wherein the rotating member comprises a rotating shaft and a first transmission member; the rotating shaft penetrates through the sealing cover, the transmission part is provided with a second transmission piece, and the first transmission piece and the second transmission piece are in matched transmission.

In some preferred embodiments, the first transmission member is a guide groove which is rotatably arranged, and the second transmission member is a guide bar which is arranged in cooperation with the guide groove; or the second transmission piece is a guide groove which is arranged in a rotating mode, and the first transmission piece is a guide bar which is matched with the guide groove.

In some preferred embodiments, the outer wall of the slider cooperates with the interior of the housing to provide a stop mechanism that inhibits relative rotation of the slider and the housing.

The limiting mechanism is a limiting strip and a limiting groove matched with the limiting strip.

In some preferred embodiments, an elastic mechanism is disposed in the first cavity, and two ends of the elastic mechanism are respectively forced on the damping portion and the inner end face of the housing.

The elastic structure is one of a spring, a hollow rubber rod and a reed.

Examples

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

The technical features of the technical solution provided by the present invention are further clearly and completely described below with reference to specific embodiments.

Example 1

A high-load damping rotating shaft device comprises a sealing cavity, wherein the sealing cavity comprises a first cavity and a second cavity, medium oil is arranged in the first cavity and the second cavity, the first cavity and the second cavity are separated by a sliding part 1, and a first oil duct 11 is arranged in the sliding part 1; an oil control assembly is arranged in the first cavity;

the medium oil flows into the first cavity from the second cavity through the gap between the sliding piece and the inner wall of the sealing cavity and the first oil channel 11;

The sealed cavity is formed by fixedly connecting a shell 2 and a sealed cover 3, and the shell 2 is a hollow revolving body with an opening at one end.

The slider 1 comprises a damping part 12 and a transmission part 13, the damping part 12 and the inner wall of the shell 2 and the end surface of the shell 2 form the first cavity, and the transmission part 13 and the inner wall of the shell 2 and the sealing cover 3 form the second cavity.

Accuse oil assembly is including accuse oil jacket 41 and movable stopper 42, accuse oil jacket 41 is one end open-ended hollow solid of revolution, the opening one end of accuse oil jacket 41 with damping portion 12 fixed connection, movable stopper 42 activity sets up inside accuse oil jacket 41, movable stopper 42 sets up to the screens shutoff first oil duct 11's shape, the terminal surface of accuse oil jacket 41 is provided with second oil duct 411, second oil duct 411 sets up to the screens restriction movable stopper 42's shape.

The device further comprises a rotating part 5, wherein the rotating part 5 comprises a rotating shaft 51 and a first transmission part 52; the rotating shaft 51 penetrates through the sealing cover 3, the transmission part 13 is provided with a second transmission piece 131, and the first transmission piece 52 and the second transmission piece 131 are in matched transmission.

The first transmission member 52 is a guide groove which is rotatably disposed, and the second transmission member 131 is a guide bar which is disposed in cooperation with the guide groove.

The outer wall of the sliding piece 1 is matched with the inside of the shell 2 to be provided with a limiting mechanism, and the limiting mechanism prohibits the relative rotation of the sliding piece 1 and the shell 2.

An elastic mechanism 6 is arranged in the first cavity, and two ends of the elastic mechanism 6 are respectively stressed on the damping part 12 and the inner side end face of the shell 2.

Example 2

Example 3

The second transmission member 131 is a guide groove which is rotatably disposed, and the first transmission member 52 is a guide bar which is disposed in cooperation with the guide groove.

Example 4

The oil control assembly is a reed 43, the reed 43 completely covers the first oil passage 11 in a free state, the reed 43 is fixedly connected with the damping part 12, and a connection point is located on the same side of the first oil passage 11.

The oil control assembly is a plunger 44, the plunger 44 is arranged inside the first oil passage 11, the plunger 44 includes a blocking surface 441 and at least 2 limiting arms 442, the blocking surface 441 and the limiting arms 442 are fixedly connected, the blocking surface 441 and the limiting arms 442 are respectively arranged at two end sides of the first oil passage 11, the blocking surface 441 covers the first oil passage 11, a protrusion extending out of the boundary range of the first oil passage 11 is arranged at the end of the limiting arms 442, and the distance between the blocking surface 441 and the protrusion of the limiting arms 442 is greater than the length of the first oil passage 11.

The first transmission piece 52 is a guide groove which is rotatably arranged, and the second transmission piece 131 is a guide bar which is matched with the guide groove; or, the second transmission member 131 is a guide groove which is rotatably disposed, and the first transmission member 52 is a guide bar which is disposed in cooperation with the guide groove.

Example 5

Example 6

The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in other forms, and any person skilled in the art may modify or change the technical content of the above disclosure into equivalent embodiments with equivalent changes, but all those modifications, equivalents and changes made to the above embodiments according to the technical spirit of the present invention are still within the scope of the present invention.

Claims

1. The high-load damping rotating shaft device is characterized by comprising a sealing cavity, wherein the sealing cavity comprises a first cavity and a second cavity, medium oil is arranged in the first cavity and the second cavity, the first cavity and the second cavity are separated by a sliding part (1), and a first oil duct (11) is arranged in the sliding part (1); an oil control assembly is arranged in the first cavity;

the medium oil flows into the first cavity from the second cavity through a gap between the sliding piece and the inner wall of the sealing cavity and the first oil channel (11);

2. A high-load damping rotary shaft device according to claim 1, wherein the seal chamber is formed by fixedly connecting a housing (2) and a seal cover (3), and the housing (2) is a hollow rotary body with an opening at one end.

3. A high-load damping spindle device according to claim 2, characterized in that the slider (1) comprises a damping part (12) and a transmission part (13), the damping part (12) forms the first cavity with the inner wall of the housing (2) and the end face of the housing (2), and the transmission part (13) forms the second cavity with the inner wall of the housing (2) and the sealing cover (3).

4. The high-load damping rotating shaft device according to claim 3, wherein the oil control assembly comprises an oil control sleeve (41) and a movable plug (42), the oil control sleeve (41) is a hollow rotating body with an opening at one end, the opening end of the oil control sleeve (41) is fixedly connected with the damping part (12), the movable plug (42) is movably arranged inside the oil control sleeve (41), the movable plug (42) is arranged in a shape of blocking the first oil passage (11), the end surface of the oil control sleeve (41) is provided with a second oil passage (411), and the second oil passage (411) is arranged in a shape of blocking and limiting the movable plug (42).

5. A high-load damping rotating shaft device according to claim 3, wherein the oil control component is a reed (43), the reed (43) completely covers the first oil passage (11) in a free state, the reed (43) is fixedly connected with the damping part (12), and the connection point is positioned on the same side of the first oil passage (11).

6. The high-load damping rotating shaft device according to claim 2 or 3, wherein the oil control component is a plunger (44), the plunger (44) is arranged inside the first oil channel (11), the plunger (44) comprises a blocking surface (441) and at least 2 limiting arms (442), the blocking surface (441) and the limiting arms (442) are fixedly connected, the blocking surface (441) and the limiting arms (442) are respectively arranged at two end sides of the first oil channel (11), the blocking surface (441) covers the first oil channel (11), the end part of the limiting arm (442) is provided with a protrusion extending out of the boundary range of the first oil channel (11), and the distance between the blocking surface (441) and the protrusion of the limiting arm (442) is greater than the length of the first oil channel (11).

7. A high-load damping rotary shaft device according to claim 3, further comprising a rotary member (5), wherein the rotary member (5) comprises a rotary shaft (51), a first transmission member (52); the rotating shaft (51) penetrates through the sealing cover (3), the transmission part (13) is provided with a second transmission piece (131), and the first transmission piece (52) and the second transmission piece (131) are in matched transmission.

8. A high load damping rotary shaft device according to claim 7, characterized in that the first transmission member (52) is a guide groove arranged in a rotary manner, and the second transmission member (131) is a guide bar arranged in a matching manner with the guide groove; or the second transmission piece (131) is a guide groove which is arranged in a rotating mode, and the first transmission piece (52) is a guide strip which is matched with the guide groove.

9. A high load damped hinge assembly according to claim 2 wherein the outer wall of the slider (1) cooperates with the interior of the housing (2) to provide a stop mechanism which inhibits relative rotation of the slider (1) and the housing (2).

10. A high-load damping spindle device according to claim 3, characterized in that a resilient mechanism (6) is arranged in the first cavity, and both ends of the resilient mechanism (6) are respectively forced by the damping part (12) and the inner end surface of the housing (2).