CN221145138U

CN221145138U - Gapless viscous damper

Info

Publication number: CN221145138U
Application number: CN202323322254.9U
Authority: CN
Inventors: 徐小春; 李松旭; 蔡慧; 吉慧
Original assignee: Jiangsu Huazhen Shock Absorption Technology Co ltd
Current assignee: Jiangsu Huazhen Shock Absorption Technology Co ltd
Priority date: 2023-12-06
Filing date: 2023-12-06
Publication date: 2024-06-14
Anticipated expiration: 2033-12-06

Abstract

The utility model provides a gapless viscous damper, which relates to the technical field of dampers and comprises a cylinder body, a cylinder rod and a piston, wherein the cylinder rod is arranged in the middle of the interior of the cylinder body, the piston is fixedly arranged at the bottom end of the cylinder rod, and a hollow rod is fixedly arranged at the position, close to the cylinder rod, of the top end of the cylinder body. According to the utility model, through the arrangement of the sealing ring B, the sealing ring C, the hollow rod, the sealing sleeve and the stop block, the junction of the cylinder rod and the cylinder body is sealed in multiple layers, the sealing effect of the junction of the cylinder body and the cylinder rod is better, the phenomenon that a gap is formed at the junction of the cylinder body and the cylinder rod due to the fact that a single-layer sealing structure is damaged caused by the upward and downward movement of the cylinder rod for multiple times is avoided, the improved viscous damper can provide more effective damping, the amplitude of the structure is reduced, the stability of the system is improved, the gap problem is eliminated, and the service life of the viscous damper is prolonged because the material is not influenced by unnecessary loss and aging.

Description

Gapless viscous damper

Technical Field

The utility model relates to the technical field of dampers, in particular to a gapless viscous damper.

Background

A viscous damper is a device widely used in engineering and mechanical systems for controlling vibration and reducing resonance of a structure, and the working principle of the viscous damper is based on the phenomenon of viscous damping, i.e. the internal relative displacement of a material when subjected to an external force, and generally comprises two relatively moving parts, such as two parallel plates, filled with a viscous fluid, such as a liquid or semi-solid material, between which the viscous fluid generates internal damping when the structure is subjected to vibration or impact force, converting energy into thermal energy, thereby reducing the amplitude of vibration.

The utility model discloses a viscous damper, including cylinder body subassembly and cylinder rod subassembly, cylinder rod subassembly slidable mounting is in the cylinder body subassembly, the cylinder body subassembly includes the cylinder body, the cylinder body has first cylinder wall and second cylinder wall, the medial surface of first cylinder wall constitutes first cavity, slidable mounting cylinder rod subassembly in the first cavity, the second cylinder wall surrounds first cylinder wall, and constitute the second cavity, cylinder rod subassembly includes the cylinder rod, be equipped with first oilhole and second oilhole on the cylinder rod, the axis direction of cylinder rod is followed to first oilhole, and one end and first cavity intercommunication, the other end and second oilhole intercommunication, the second oilhole is located the position of exposing the cylinder body subassembly on the cylinder rod, and the axis of second oilhole is perpendicular with the axis of first oilhole, be equipped with the third oilhole on the second cylinder wall, the third oilhole communicates with the second cavity, and connect the second oilhole through oil pipe, though form confined oil circuit circulation between first cavity and second cavity, guarantee that the cylinder rod is effectual with the cylinder body's of cylinder body, but the general structure of junction, the sealing structure of cylinder rod and cylinder body, the loss can not be reduced because of the sealing material, the sealing material that can cause the sealing material can not reduce the vibration and the vibration damping material, can only reduce the vibration damping material and the high-damping material, can reduce the vibration absorber, and the vibration absorber can be produced in the sealing material and can be reduced and the sealing material and the gap can be reduced because the vibration absorber is improved and the sealing material and can be produced.

Disclosure of utility model

The utility model aims to solve the defects in the prior art and provides a gapless viscous damper.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a no clearance viscous damper, includes cylinder body, jar pole and piston, jar pole setting is in the middle of the inside of cylinder body, piston fixed mounting is in the bottom of jar pole, the cylinder body top is close to the position department fixed mounting of jar pole has the cavity pole, the position department fixed mounting that the cavity pole inner wall is close to jar pole has sealing washer B, the position department fixed mounting on the inside top of cylinder body has annular dog, the surface of annular dog is provided with the seal cover, the top fixed mounting of annular dog has the gag lever post, the bottom fixed mounting of seal cover has sealing washer C, both ends all fixed mounting have sealing washer A about the surface of piston.

Further, the piston, the cylinder rod and the cylinder body are in sliding connection, and the sealing rings B are uniformly arranged at the positions of the inner wall of the hollow rod. Accordingly, the sealing effect of the junction of the hollow rod and the cylinder rod is better.

Further, the surface of the hollow rod is fixedly provided with a triangular support plate, and the triangular support plate is fixedly arranged between the triangular support plate and the cylinder body. Accordingly, in order to make the hollow rod more firm, the phenomenon that the hollow rod is deformed due to the fact that the cylinder rod moves up and down for a long time is avoided.

Further, the limiting rod and the cylinder body are fixedly arranged, a limiting groove is formed in the position, close to the limiting rod, of the top end of the sealing sleeve, and the limiting groove is connected with the limiting rod in a sliding mode. Accordingly, in order to limit the position of the sealing sleeve on the annular stop.

Further, the sealing rings C are uniformly arranged at the bottom end of the sealing sleeve, an upper fixing ring is fixedly arranged at the top end of the cylinder rod, and a lower fixing block is fixedly arranged in the middle of the bottom end of the cylinder body. Accordingly, the installation and fixation of the viscous damper are facilitated.

Further, the surface of cylinder body is provided with protection machanism, protection machanism includes the connecting block, go up connecting block fixed mounting in the position department on cylinder body surface top, the position department fixed mounting of cylinder body surface bottom has lower connecting block, the position department fixed mounting that goes up the connecting block bottom and is close to the cylinder body has the rubber sleeve, the fixed surface of rubber sleeve installs the reinforcing protection pole. Accordingly, the cylinder surface is protected.

Further, the reinforcing protection rod is fixedly installed between the upper connecting block and the lower connecting block, the rubber sleeve is fixedly installed between the lower connecting block, and the cylinder body is arranged in the rubber sleeve. Accordingly, the rubber jacket is fixed to the cylinder surface.

Compared with the prior art, the utility model has the advantages and positive effects that:

1. According to the utility model, through the arrangement of the sealing ring B, the sealing ring C, the hollow rod, the sealing sleeve and the stop block, the junction of the cylinder rod and the cylinder body is sealed in multiple layers, the sealing effect of the junction of the cylinder body and the cylinder rod is better, the phenomenon that a gap is formed at the junction of the cylinder body and the cylinder rod due to the fact that a single-layer sealing structure is damaged caused by the upward and downward movement of the cylinder rod for multiple times is avoided, the improved viscous damper can provide more effective damping, the amplitude of the structure is reduced, the stability of the system is improved, the gap problem is eliminated, and the service life of the viscous damper is prolonged because the material is not influenced by unnecessary loss and aging.

2. According to the utility model, the surface of the cylinder body is protected through the arrangement of the rubber sleeve, the upper connecting block, the lower connecting block and the reinforced protection rod, so that the phenomenon that the cylinder body is damaged due to collision in the transportation or installation process of the viscous damper is avoided, and the protection effect of the surface of the cylinder body is better.

Drawings

FIG. 1 is a schematic diagram of a proposed gapless viscous damper according to the present utility model;

FIG. 2 is a schematic diagram of a part of an explosion structure of a gapless viscous damper according to the present utility model;

FIG. 3 is an enlarged view of the portion A of FIG. 2 showing a gapless viscous damper according to the present utility model;

fig. 4 is a bottom view of a part of an explosion structure of a gapless viscous damper according to the present utility model.

Legend description:

1. A cylinder; 2. a hollow rod; 3. a cylinder rod; 4. an upper fixing ring; 5. an upper connecting block; 6. a rubber sleeve; 7. reinforcing a protective rod; 8. a lower connecting block; 9. a lower fixing block; 10. a triangular support plate; 11. a sealing ring A; 12. a piston; 13. a sealing ring B; 14. a limit rod; 15. sealing sleeve; 16. a limit groove; 17. an annular stop; 18. and (3) sealing ring C.

Detailed Description

In order that the above objects, features and advantages of the utility model will be more clearly understood, a further description of the utility model will be rendered by reference to the appended drawings and examples. It should be noted that, without conflict, the embodiments of the present utility model and features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced otherwise than as described herein, and therefore the present utility model is not limited to the specific embodiments of the disclosure that follow.

Example 1

Referring to fig. 1-4, the present utility model provides a technical solution: the zero-clearance viscous damper comprises a cylinder body 1, a cylinder rod 3 and a piston 12, wherein the cylinder rod 3 is arranged in the middle of the interior of the cylinder body 1, the piston 12 is fixedly arranged at the bottom end of the cylinder rod 3, a hollow rod 2 is fixedly arranged at the position, close to the cylinder rod 3, of the top end of the cylinder body 1, a triangular support plate 10 is fixedly arranged on the surface of the hollow rod 2, a sealing ring B13 is fixedly arranged at the position, close to the cylinder rod 3, of the inner wall of the hollow rod 2, the piston 12 and the cylinder rod 3 are in sliding connection with the cylinder body 1, the sealing ring B13 is uniformly arranged at the position of the inner wall of the hollow rod 2, an annular stop block 17 is fixedly arranged at the position of the top end of the interior of the cylinder body 1, a sealing sleeve 15 is arranged on the surface of the annular stop block 17, a limit rod 14 is fixedly arranged at the top end of the annular stop block 17, the limit rod 14 is fixedly arranged between the limit rod 14 and the cylinder body 1, a limit groove 16 is formed at the position, close to the top end of the sealing sleeve 15, the limit groove 16 is in sliding connection with the limit rod 14, the bottom end of the seal sleeve 15 is fixedly provided with a seal ring C18, the upper end and the lower end of the surface of the piston 12 are fixedly provided with seal rings A11, the seal rings C18 are uniformly arranged at the bottom end of the seal sleeve 15, the top end of the cylinder rod 3 is fixedly provided with an upper fixing ring 4, the middle of the bottom end of the cylinder body 1 is fixedly provided with a lower fixing block 9, the seal rings B13, the seal rings C18, the hollow rod 2, the seal sleeve 15 and the stop block are designed to ensure that the junction of the cylinder rod 3 and the cylinder body 1 is sealed in multiple layers, the sealing effect of the junction of the cylinder body 1 and the cylinder rod 3 is better, the phenomenon that the junction of the cylinder body 1 and the cylinder rod 3 is in gaps due to the damage of a single-layer sealing structure caused by the up-down movement of the cylinder rod 3 is avoided, the improved viscous damper can provide more effective damping, and the vibration amplitude of the structure is reduced, the stability of the system is improved, the clearance problem is eliminated, and the service life of the viscous damper is prolonged, because the material is not affected by unnecessary loss and aging.

Example two

Referring to fig. 1, the surface of the cylinder 1 is provided with a protection mechanism, the protection mechanism comprises an upper connecting block 5, the upper connecting block 5 is fixedly installed at the position of the top end of the surface of the cylinder 1, a lower connecting block 8 is fixedly installed at the position of the bottom end of the surface of the cylinder 1, a rubber sleeve 6 is fixedly installed at the position of the bottom end of the upper connecting block 5, which is close to the cylinder 1, a reinforcing protection rod 7 is fixedly installed on the surface of the rubber sleeve 6, a reinforcing protection rod 7 is fixedly installed between the reinforcing protection rod 7 and the upper connecting block 5 and the lower connecting block 8, the cylinder 1 is arranged in the rubber sleeve 6, the upper connecting block 5, the lower connecting block 8 and the reinforcing protection rod 7 are designed to protect the surface of the cylinder 1, so that the phenomenon that the cylinder 1 is damaged due to collision in the transportation or installation process of a viscous damper is avoided, and the protection effect of the surface of the cylinder 1 is better.

Working principle: when using the viscous damper, can seal cylinder pole 3 and cylinder body 1 junction through the sealing washer B13 of cavity pole 2 inner wall, avoided cylinder body 1 and cylinder pole 3 junction to take place the space and lead to the phenomenon of weeping to produce, and through triangle backup pad 10, support cavity pole 2, make cavity pole 2 more firm, rethread seal cartridge 15 carries out secondary seal to cylinder pole 3 and cylinder body 1 junction, make its cylinder pole 3 and cylinder body 1 junction leakproofness better, and piston 12 and cylinder body 1 junction is sealed through sealing washer A11, except the clearance problem, the life-span of viscous damper will be prolonged, and when the viscous damper bumps, can protect its cylinder body 1 surface through strengthening guard bar 7 and rubber sleeve 6, avoided leading to the phenomenon of cylinder body 1 surface breakage weeping because of the collision to produce, make the protection effect on viscous damper surface better.

The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present utility model without departing from the technical content of the present utility model still belong to the protection scope of the technical solution of the present utility model.

Claims

1. Gapless viscous damper, including cylinder body (1), jar pole (3) and piston (12), its characterized in that: the cylinder rod (3) is arranged in the middle of the inside of the cylinder body (1), the piston (12) is fixedly arranged at the bottom end of the cylinder rod (3), the hollow rod (2) is fixedly arranged at the position, close to the cylinder rod (3), of the top end of the cylinder body (1), the sealing ring B (13) is fixedly arranged at the position, close to the cylinder rod (3), of the inner wall of the hollow rod (2), the annular stop block (17) is fixedly arranged at the position, close to the top end of the inside of the cylinder body (1), the sealing sleeve (15) is arranged on the surface of the annular stop block (17), the limit rod (14) is fixedly arranged at the top end of the annular stop block (17), the sealing ring C (18) is fixedly arranged at the bottom end of the sealing sleeve (15), and the sealing rings A (11) are fixedly arranged at the upper end and the lower end of the surface of the piston (12).

2. A gapless viscous damper as defined in claim 1 wherein: the piston (12) is connected with the cylinder rod (3) and the cylinder body (1) in a sliding way, and the sealing rings B (13) are uniformly arranged at the positions of the inner wall of the hollow rod (2).

3. A gapless viscous damper as defined in claim 1 wherein: the surface of the hollow rod (2) is fixedly provided with a triangular support plate (10), and the triangular support plate (10) is fixedly arranged between the cylinder body (1).

4. A gapless viscous damper as defined in claim 1 wherein: the limiting rod (14) is fixedly arranged between the limiting rod and the cylinder body (1), a limiting groove (16) is formed in the position, close to the limiting rod (14), of the top end of the sealing sleeve (15), and the limiting groove (16) is in sliding connection with the limiting rod (14).

5. A gapless viscous damper as defined in claim 1 wherein: the sealing rings C (18) are uniformly arranged at the bottom end of the sealing sleeve (15), an upper fixing ring (4) is fixedly arranged at the top end of the cylinder rod (3), and a lower fixing block (9) is fixedly arranged in the middle of the bottom end of the cylinder body (1).

6. A gapless viscous damper as defined in claim 1 wherein: the surface of cylinder body (1) is provided with protection machanism, protection machanism includes connecting block (5), go up connecting block (5) fixed mounting in the position department on cylinder body (1) surface top, the position department fixed mounting of cylinder body (1) surface bottom has lower connecting block (8), the position department fixed mounting that goes up connecting block (5) bottom and is close to cylinder body (1) has rubber sleeve (6), the surface fixed mounting of rubber sleeve (6) has reinforcing protection pole (7).

7. A gapless viscous damper as defined in claim 6 wherein: the reinforced protection rod (7) is fixedly installed between the upper connecting block (5) and the lower connecting block (8), the rubber sleeve (6) is fixedly installed between the lower connecting block (8), and the cylinder body (1) is arranged in the rubber sleeve (6).