阅读说明：本技术 一种阻尼力矩可调的多回转式旋转阻尼器 (Multi-rotation type rotary damper with adjustable damping torque ) 是由 王飞 吴运国 郭建辉 张宇 汪正洪 毛立俊 徐文才 李德胜 汤占峰 吴江 于 2021-03-18 设计创作，主要内容包括：一种阻尼力矩可调的多回转式旋转阻尼器。提供了一种结构简单,阻尼力矩大且阻力力矩可调的阻尼力矩可调的多回转式旋转阻尼器。包括底座、转体、下垫片、壳体、上垫片、调节螺帽、弹簧和转轴；所述底座呈凸字形,所述底座的中部设有上大下小的阶梯孔,所述下垫片具有中孔,所述下垫片水平设置阶梯孔的大台阶孔内,所述转轴上设有支撑环,所述转轴的支撑环设在下垫片上,所述转轴的下部穿过下垫片的中孔以及伸出阶梯孔,所述壳体的底部设有法兰端,所述法兰端与底座的下部连接；所述壳体内设有阻尼硅油。本发明方便加工,调节可靠。(A multi-turn rotary damper with adjustable damping torque. The multi-rotation type rotary damper with the adjustable damping torque is simple in structure, large in damping torque and adjustable in resistance torque. The device comprises a base, a rotating body, a lower gasket, a shell, an upper gasket, an adjusting nut, a spring and a rotating shaft; the base is in a convex shape, a stepped hole with a large upper part and a small lower part is arranged in the middle of the base, the lower gasket is provided with a middle hole, the lower gasket is horizontally arranged in the large stepped hole of the stepped hole, the rotating shaft is provided with a support ring, the support ring of the rotating shaft is arranged on the lower gasket, the lower part of the rotating shaft penetrates through the middle hole of the lower gasket and extends out of the stepped hole, the bottom of the shell is provided with a flange end, and the flange end is connected with the lower part of the base; damping silicone oil is arranged in the shell. The invention has convenient processing and reliable adjustment.)

1. A multi-rotation type rotary damper with adjustable damping moment is characterized by comprising a base, a rotation body, a lower gasket, a shell, an upper gasket, an adjusting nut, a spring and a rotating shaft;

the base is in a convex shape, the middle part of the base is provided with a stepped hole with a big upper part and a small lower part, the lower gasket is provided with a middle hole, the lower gasket is horizontally provided with a big stepped hole of the stepped hole,

the rotating shaft is provided with a support ring, the support ring of the rotating shaft is arranged on the lower gasket, the lower part of the rotating shaft penetrates through the middle hole of the lower gasket and extends out of the stepped hole,

the middle of the top and the bottom of the rotating body are respectively provided with a first accommodating hole and a second accommodating hole, the middle of the first accommodating hole is provided with a connecting cylinder with a through hole, the through hole is communicated with the second accommodating hole, the upper part of the base is positioned in the second accommodating hole, the upper part of the rotating shaft is positioned in the second accommodating hole and the through hole, and the rotating shaft is connected with the rotating body through a flat key;

the connecting cylinder is provided with external threads, the adjusting nut is connected with the connecting cylinder through threads, the top of the adjusting nut is closed, and the spring is positioned between the adjusting nut and the rotating shaft;

the shell is provided with a placing hole, the rotating body is positioned in the placing hole, the top of the placing hole is provided with a baffle ring, and the upper gasket is positioned between the baffle ring and the adjusting nut;

the bottom of the shell is provided with a flange end, and the flange end is connected with the lower part of the base;

damping silicone oil is arranged in the shell.

2. The multi-turn rotary damper with adjustable damping torque as claimed in claim 1, further comprising a sealing plug, a sealing plug and a gasket, wherein the sealing plug is used for connecting to the upper portion of the retainer ring of the seating hole, and the gasket and the sealing plug are located between the sealing plug and the retainer ring.

3. The multi-turn rotary damper of claim 2, wherein the base, the swivel, the housing, the adjusting nut, and the sealing plug are made of aluminum alloy.

4. The multi-turn rotational damper of claim 1, further comprising a seal ring positioned between the housing flange end and the base.

5. The multi-turn rotary damper of claim 1, further comprising a copper sleeve disposed within the small step hole of the step hole, wherein the shaft is disposed within the copper sleeve.

6. The multi-turn rotary damper of adjustable damping torque of claim 1, wherein the swivel is in clearance fit with the housing and the swivel is in clearance fit with the base.

7. The multi-turn rotational damper with adjustable damping torque of claim 1, wherein the adjusting nut is provided with a small hole at the top.

Technical Field

The invention relates to a damper, in particular to a multi-rotation type rotary damper with adjustable damping moment.

Background

With the continuous development of the electric actuator industry, the passive spring reset type electric actuator is the key point of the development of the future industrial control industry, but the passive spring reset type electric actuator has the problem of large impact in the reset process. The damper is used as a key part for eliminating impact in the civil electronic industry, but the damper in the civil industry has the defects of small damping moment and nonadjustable damping moment.

Disclosure of Invention

Aiming at the problems, the invention provides the multi-rotation type rotary damper with the adjustable damping moment, which has the advantages of simple structure, large damping moment and adjustable resistance moment.

The technical scheme of the invention is as follows: the device comprises a base, a rotating body, a lower gasket, a shell, an upper gasket, an adjusting nut, a spring and a rotating shaft;

the base is in a convex shape, the middle part of the base is provided with a stepped hole with a big upper part and a small lower part, the lower gasket is provided with a middle hole, the lower gasket is horizontally provided with a big stepped hole of the stepped hole,

the rotating shaft is provided with a support ring, the support ring of the rotating shaft is arranged on the lower gasket, the lower part of the rotating shaft penetrates through the middle hole of the lower gasket and extends out of the stepped hole,

the middle of the top and the bottom of the rotating body are respectively provided with a first accommodating hole and a second accommodating hole, the middle of the first accommodating hole is provided with a connecting cylinder with a through hole, the through hole is communicated with the second accommodating hole, the upper part of the base is positioned in the second accommodating hole, the upper part of the rotating shaft is positioned in the second accommodating hole and the through hole, and the rotating shaft is connected with the rotating body through a flat key;

the connecting cylinder is provided with external threads, the adjusting nut is connected with the connecting cylinder through threads, the top of the adjusting nut is closed, and the spring is positioned between the adjusting nut and the rotating shaft;

the shell is provided with a placing hole, the rotating body is positioned in the placing hole, the top of the placing hole is provided with a baffle ring, and the upper gasket is positioned between the baffle ring and the adjusting nut;

the bottom of the shell is provided with a flange end, and the flange end is connected with the lower part of the base;

damping silicone oil is arranged in the shell.

The sealing device is characterized by further comprising a sealing gasket, a sealing plug and a gasket, wherein the sealing plug is used for being connected to the upper portion of the retaining ring of the placement hole, and the gasket and the sealing gasket are located between the sealing plug and the retaining ring.

The base, the rotating body, the shell, the adjusting nut and the sealing plug are made of aluminum alloy materials.

Still include the sealing washer, the sealing washer is located between casing flange end and the base.

Still include the copper sheathing, the copper sheathing is established in the little shoulder hole of shoulder hole, the pivot is located the copper sheathing.

The rotating body is in clearance fit with the shell, and the rotating body is in clearance fit with the base.

The top of the adjusting nut is provided with a small hole.

In the working process, the rotating body is arranged between the base and the shell and is driven to move by the rotating shaft, and the adjusting nut is connected to the connecting cylinder of the rotating body through threads, so that the whole body is conveniently formed; a spring is arranged between the rotating shaft and the adjusting nut, so that the adjusting nut is contacted with the upper gasket;

when the damping torque is realized, as the damping silicone oil is arranged in the shell, the rotating shaft drives the rotating body to move together in the rotating process of the rotating shaft, and the rotating body and the shell and the base generate friction force due to the presence of the silicone oil in the moving process;

when the damping torque is adjusted, in the running process of the damper, when the damping torque is insufficient, the adjusting nut can be adjusted, and the adjusting nut and the rotating body rotate relatively, so that the contact area between the rotating body and the base and between the rotating body and the shell is increased, the friction force is further increased, and the increase of the damping torque is finally realized.

The invention has convenient processing and reliable adjustment.

Drawings

Figure 1 is a schematic view of the structure of the present invention,

figure 2 is a schematic view of the structure of the rotating shaft,

FIG. 3 is a schematic view of the connection of the swivel and the adjustment nut;

in the figure, 1 is a base, 2 is a copper sleeve, 3 is a rotator, 31 is a first accommodating hole, 32 is a second accommodating hole, 33 is a connecting cylinder, 4 is a lower gasket, 5 is a shell, 6 is an upper gasket, 7 is a sealing gasket, 8 is a sealing plug, 9 is a gasket, 10 is an adjusting nut, 101 is a small hole, 11 is a spring, 12 is a rotating shaft, 120 is a supporting ring, 13 is a retaining ring, 14 is a flange end, 15 is a sealing ring, and 16 is a stepped hole.

Detailed Description

The invention is shown in figures 1-3, and comprises a base 1, a rotator 3, a lower gasket 4, a shell 5, an upper gasket 6, an adjusting nut 10, a spring 11 and a rotating shaft 12;

the base 1 is in a convex shape, the middle part of the base 1 is provided with a stepped hole 16 with a large upper part and a small lower part, the lower gasket 4 is provided with a middle hole, the lower gasket 4 is horizontally provided with a large stepped hole of the stepped hole,

the rotating shaft 12 is provided with a support ring 120, the support ring 120 of the rotating shaft is arranged on the lower gasket 4, the lower part of the rotating shaft passes through the middle hole of the lower gasket and extends out of the stepped hole,

a first accommodating hole 31 and a second accommodating hole 32 are respectively formed in the middle of the top and the bottom of the rotating body 3, a connecting cylinder 33 with a through hole is arranged in the middle of the first accommodating hole, the through hole is communicated with the second accommodating hole 32, the upper part of the base 1 is positioned in the second accommodating hole, the upper part of the rotating shaft 12 is positioned in the second accommodating hole and the through hole, and the rotating shaft is connected with the rotating body through a flat key;

the connecting cylinder 33 is provided with external threads, the adjusting nut 10 is connected with the connecting cylinder 33 through threads, the top of the adjusting nut 10 is closed, and the spring 11 is positioned between the adjusting nut and the rotating shaft;

the shell 5 is provided with a mounting hole, the rotating body 3 is positioned in the mounting hole, the top of the mounting hole is provided with a baffle ring 13, and the upper gasket 6 is positioned between the baffle ring and the adjusting nut;

the bottom of the shell 5 is provided with a flange end 14 which is connected with the lower part of the base;

damping silicone oil is arranged in the shell.

In the working process, the rotating body is arranged between the base and the shell and is driven to move by the rotating shaft, and the adjusting nut is connected to the connecting cylinder of the rotating body through threads, so that the whole body is conveniently formed; a spring is arranged between the rotating shaft and the adjusting nut, so that the adjusting nut is contacted with the upper gasket;

when the damping torque is realized, as the damping silicone oil is arranged in the shell, the rotating shaft drives the rotating body to move together in the rotating process of the rotating shaft, and the rotating body and the shell and the base generate friction force due to the presence of the silicone oil in the moving process;

when the damping torque is adjusted, in the running process of the damper, when the damping torque is insufficient, the adjusting nut can be adjusted, and the adjusting nut and the rotating body rotate relatively, so that the contact area between the rotating body and the base and between the rotating body and the shell is increased, the friction force is further increased, and the increase of the damping torque is finally realized.

The sealing device is characterized by further comprising a sealing gasket 7, a sealing plug 8 and a gasket 9, wherein the sealing plug is used for being connected to the upper portion of the retaining ring of the placement hole, and the gasket and the sealing gasket are located between the sealing plug and the retaining ring.

The sealing gasket, the sealing plug and the gasket are arranged, so that the top of the shell is convenient to seal, and the operation is reliable.

The base, the rotating body, the shell, the adjusting nut and the sealing plug are made of aluminum alloy materials.

2A12 high-quality aluminum alloy can be selected, so that the strength is ensured, and the weight is reduced.

A sealing ring 15 is included between the flange end of the housing and the base.

And a sealing ring is arranged, so that the sealing property between the shell and the base is improved.

Still include copper sheathing 2, the copper sheathing is established in the little shoulder hole of shoulder hole, the pivot is located the copper sheathing.

Set up the copper sheathing, guarantee intensity, improve the wearability.

The materials of the copper sleeve, the lower gasket, the upper gasket and the gasket are HPb59, so that the strength is ensured, and the wear resistance is improved.

The rotating shaft is made of 20Cr13 material, so that the rotating shaft has higher rigidity and meets the industrial use requirement.

The rotating body is in clearance fit with the shell, and the rotating body is in clearance fit with the base.

Through clearance fit, the damping silicone oil is convenient to place for action.

The top of the adjusting nut 10 is provided with a small hole 101.

The small holes are arranged and can be used as damping silicone oil supplementing holes.

In use, the spring 11 is placed in the swivel 3 and fixed between the rotating shaft and the adjusting nut. The energy pre-compressed by the spring fixes the relative position between the adjusting nut 10 and the rotating shaft 12, and indirectly fixes the relative position between the rotator 3 and the base 1.

Through the regulation of adjusting nut 10, can realize the change of cooperation area between the rotary body in the attenuator and the base, and then realize the adjustment of self damping moment.

The disclosure of the present application also includes the following points:

(1) the drawings of the embodiments disclosed herein only relate to the structures related to the embodiments disclosed herein, and other structures can refer to general designs;

(2) in case of conflict, the embodiments and features of the embodiments disclosed in this application can be combined with each other to arrive at new embodiments;

the above embodiments are only embodiments disclosed in the present disclosure, but the scope of the disclosure is not limited thereto, and the scope of the disclosure should be determined by the scope of the claims.