阅读说明：本技术 一种剪切式粘滞阻尼器 (Shear type viscous damper ) 是由 刘汶津 谢韩涛 韩磊 魏士群 路冉洋 邰园园 周璇 于 2019-09-24 设计创作，主要内容包括：本发明涉及一种剪切式粘滞阻尼器,包括主缸、副缸和导杆,主缸通过主副缸连接螺母与副缸固定连接,主缸首端通过压紧螺母套装在导杆上,副缸末端固定安装有单耳环连接件,位于主缸内的导杆上套接有活塞,导杆末端穿过主副缸连接螺母,活塞外圈开设有若干条剪切缝。本发明通过在活塞的外壁开有剪切缝,阻尼器内的粘滞液通过剪切缝时产生阻尼,进而提高产品的耗能能力,本发明结构简单且能够有效提高减震耗能能力,值得推广使用。(The invention relates to a shear type viscous damper, which comprises a main cylinder, an auxiliary cylinder and a guide rod, wherein the main cylinder is fixedly connected with the auxiliary cylinder through a main cylinder and auxiliary cylinder connecting nut, the head end of the main cylinder is sleeved on the guide rod through a compression nut, the tail end of the auxiliary cylinder is fixedly provided with a single lug ring connecting piece, a piston is sleeved on the guide rod positioned in the main cylinder, the tail end of the guide rod penetrates through the main cylinder and auxiliary cylinder connecting nut, and the outer ring of the piston is provided with a plurality of shear cutting seams. According to the damper, the shearing seams are formed in the outer wall of the piston, and the viscous fluid in the damper generates damping when passing through the shearing seams, so that the energy consumption capability of a product is improved.)

1. A shear-type viscous damper, comprising: including master cylinder (1), vice jar (9) and guide arm (2), master cylinder (1) is through main vice jar coupling nut (5) and vice jar (9) fixed connection, and the suit is passed through gland nut (4) on guide arm (2) at master cylinder (1) head end, and the end fixed mounting of vice jar (9) has monaural ring connecting piece (6), has cup jointed piston (3) on being located guide arm (2) of master cylinder (1), and main vice jar coupling nut (5) are passed to guide arm (2) end, a plurality of cutting seams (8) have been seted up to piston (3) outer lane.

2. A shear-type viscous damper of claim 1, wherein: the outer surface of the piston (3) is provided with a groove, the depth of the groove is smaller than that of the cutting slot (8), and the groove is sleeved with a sealing ring (7).

3. A shear-type viscous damper of claim 2, wherein: the shearing seams (8) are longitudinally arranged along the outer ring of the piston (3) or obliquely arranged along two sides of the outer ring of the piston (3), and are annularly arranged at equal angles relative to the circle center of the piston (3).

Technical Field

The invention relates to the technical field of dampers, in particular to a shear type viscous damper.

Background

The viscous damper is mainly made on the basis of the principle that fluid movement, particularly viscous resistance, occurs when the fluid passes through an orifice, and is a velocity-dependent type damper. The method is widely applied to the fields of high-rise buildings, bridges, building structure seismic reconstruction, industrial pipeline equipment seismic resistance, military industry and the like. The piston structure in the prior art is more traditional, the precision is low, the processing technology difficulty is high, and the working efficiency cannot be improved.

At present, in order to realize a low damping index of the viscous damper, a small-hole torrent mode is generally adopted, namely, a small hole is formed in a piston, the smaller the aperture is, the lower the index is, but the method is difficult for the process of forming the smaller aperture.

Disclosure of Invention

The invention aims to provide a shear type viscous damper, and aims to solve the problems that a piston structure of a damper in the prior art is more traditional, the precision is low, and the processing technology difficulty is high.

In order to achieve the purpose, the technical scheme of the invention is as follows:

a shear type viscous damper comprises a main cylinder, an auxiliary cylinder and a guide rod, wherein the main cylinder is fixedly connected with the auxiliary cylinder through a main cylinder and auxiliary cylinder connecting nut, the head end of the main cylinder is sleeved on the guide rod through a compression nut, the tail end of the auxiliary cylinder is fixedly provided with a single lug ring connecting piece, a piston is sleeved on the guide rod positioned in the main cylinder, the tail end of the guide rod penetrates through the main cylinder and auxiliary cylinder connecting nut, and a plurality of shear seams are formed in the outer ring of the piston.

Furthermore, grooves are symmetrically formed in the outer surface of the piston, the depth of each groove is smaller than that of the corresponding cutting slot, and a sealing ring is sleeved on each groove.

Furthermore, the shearing seams are arranged along the longitudinal direction of the outer ring of the piston or obliquely arranged along two sides of the outer ring of the piston, and are arranged in an annular equal angle mode relative to the circle center of the piston.

According to the shear type viscous damper, the shear slots are formed in the outer wall of the piston, and viscous liquid in the damper generates damping when passing through the shear slots, so that the energy consumption capacity of a product is improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention, and are best understood by reference to the accompanying drawings in which:

FIG. 1 is a schematic diagram of a shear-type viscous damper according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a piston according to one embodiment of the present invention;

FIG. 3 is a side view of a piston in accordance with an embodiment of the present invention;

in the figure: 1. the device comprises a main cylinder, 2, a guide rod, 3, a piston, 4, a compression nut, 5, a main cylinder and auxiliary cylinder connecting nut, 6, a single lug ring connecting piece, 7, a sealing ring, 8, a shearing seam, 9 and an auxiliary cylinder.

Detailed Description

The technical solution of the present invention is further described in detail with reference to the accompanying drawings and examples.

The invention discloses a shear type viscous damper, which comprises a main cylinder 1, an auxiliary cylinder 9 and a guide rod 2, wherein the main cylinder 1 is fixedly connected with the auxiliary cylinder 9 through a main cylinder and auxiliary cylinder connecting nut 5, the head end of the main cylinder 1 is sleeved on the guide rod 2 through a compression nut 4, the tail end of the auxiliary cylinder 9 is fixedly provided with a single-lug ring connecting piece 6, a piston 3 is sleeved on the guide rod 2 positioned in the main cylinder 1, the tail end of the guide rod 2 penetrates through the main cylinder and auxiliary cylinder connecting nut 5, and the outer ring of the piston 3 is provided with a plurality of shear cutting seams 8.

With reference to fig. 2 and 3, the outer surface of the piston 3 is provided with a groove, the depth of the groove is smaller than that of the shearing slot, the groove is sleeved with a sealing ring 7, and the number of the grooves and the sealing rings 7 can be set according to process requirements, so that a contact gap between the piston 3 and the main cylinder 1 is sealed more tightly, and the piston 3 has stronger guidance for movement relative to the main cylinder 1.

As an embodiment of the present invention, in order to improve the damping effect of the piston 3, the shearing slits 8 are longitudinally formed along the axial direction of the piston 3 from outside to inside, the shearing slits 8 are annularly and equiangularly arranged with respect to the center of the piston 3, the depth of the shearing slits 8 is greater than that of the grooves, and the number and width of the shearing slits are determined according to the user process requirements.

As another embodiment of the present invention, the shear slits 8 are obliquely formed along both sides of the outer ring of the piston 3, and the depth of the shear slit 8 on each side is greater than that of the groove and is annularly arranged at an equal angle with respect to the center of the piston 3. When the piston 3 moves, viscous liquid passes through the gap between the piston 3 and the main cylinder 1 from the shearing seam 8 on one side and then flows out along the shearing seam 8 on the other side, and damping is generated when the viscous liquid passes through the shearing seam 8, so that the energy consumption capacity of a product is improved.

According to the shearing type viscous damper, the shearing seams are formed in the outer ring of the piston, and viscous liquid in the damper generates damping when passing through the shearing seams, so that the energy consumption capacity of a product is improved.

The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.