Sealing mechanism for metal shock absorber and metal shock absorber

Abstract

The sealing mechanism comprises an end clamping ring, a wall clamping ring and a telescopic pipe, the outer diameter of the end clamping ring is matched with the diameter of the end faces of the two ends of the metal shock absorber, and the end clamping ring is used for being connected with the end faces of the metal shock absorber in a clamped mode in the axial direction; the inner diameter of the wall clamping ring is matched with the outer diameter of a steel sleeve in the middle of the metal shock absorber, and a clamping groove is formed in the inner wall of the wall clamping ring in the circumferential direction and used for being connected with the ring edge of the side wall of the steel sleeve in the middle of the metal shock absorber in a clamped mode. The telescopic pipe is coaxially arranged outside the metal shock absorber in a sleeved mode, and the two ends of the telescopic pipe are coaxially connected with the end clamping ring and the wall clamping ring respectively. The metal shock absorber can effectively solve the problem that metal powder scraps are generated and overflow in the using process of the metal shock absorber.

Description

Technical Field

[0001] The invention relates to the technical field of metal vibration dampers, and in particular to a sealing mechanism for a metal vibration damper and the metal vibration damper. Background Art

[0002] During the use of metal shock absorbers, the friction and wear between the internal metal wires will produce metal powder. As the friction continues, the metal powder will overflow from the metal shock absorber, resulting in the generation of environmental waste, thus affecting the surrounding working environment.

[0003] In order to solve the above problems, the prior art has adopted a number of countermeasures. For example, in the technical solution disclosed in the patent with publication number CN211009673U, the metal contact points and thread gaps are mainly sealed by multiple rubber sealing rings; in another example, in the technical solution disclosed in the patent with publication number CN106195098B, the sealing is mainly achieved by the interference contact between the dustproof component (including the support frame and the rubber dustproof seal) and the vibration damping column.

[0004] Although the technical solution disclosed in the first patent mentioned above seals multiple metal contact gaps through sealing rings, there is still a possibility of leakage of excess matter in the vibration-damping stroke space between the cap and the upper cover; in the technical solution disclosed in the second patent mentioned above, there is interference contact between the dustproof component and the vibration-damping column. During the vibration process, the vibration-damping column and the rubber dust seal in the dustproof component will produce severe friction and wear and rubber fatigue. At the same time, instantaneous gaps may still occur between the dustproof seal and the vibration-damping column, resulting in impurity leakage. This structure is also complex and difficult to assemble. Summary of the invention

[0005] The object of the present invention is to provide a sealing mechanism for a metal vibration damper, so as to solve the problem of metal powders being generated and overflowing during the use of the metal vibration damper.

[0006] The present invention is achieved through the following technical solutions:

[0007] A sealing mechanism for a metal vibration damper comprises: an end clamping ring, the outer diameter of which matches the end face diameters at both ends of the metal vibration damper, and the end clamping ring is used to clamp with the end face of the metal vibration damper along the axial direction; a wall clamping ring, the inner diameter of which matches the outer diameter of a steel sleeve in the middle of the metal vibration damper, the inner wall of the wall clamping ring is provided with a clamping groove along the circumferential direction, and the clamping groove is used to clamp with the ring edge of the side wall of the steel sleeve in the middle of the metal vibration damper; a telescopic tube, the telescopic tube is coaxially sleeved outside the metal vibration damper, and the two ends of the telescopic tube are coaxially connected to the end clamping ring and the wall clamping ring respectively.

[0008] Optionally, the end clamping ring is provided with an embedded ring protruding from the annular surface facing the wall clamping ring, and the embedded ring is used to be embedded in the end surface of the metal vibration damper along the axial direction; when the embedded ring is embedded in the end surface of the metal vibration damper, the side of the end clamping ring away from the wall clamping ring is flush with the end surface of the metal vibration damper.

[0009] Optionally, the telescopic tube is in the shape of a bellows.

[0010] A metal vibration damper comprises: a limiting cylinder, wherein two ends of the limiting cylinder are respectively provided with a first limiting plate and a second limiting plate, the first limiting plate and the second limiting plate are symmetrically arranged, and the second limiting plate is used to be attached to and fixedly connected with the external environment; a steel sleeve, wherein the steel sleeve is coaxially slidably sleeved outside the limiting cylinder, the steel sleeve is used to be connected with the vibration-damped equipment, the outer wall of the steel sleeve extends radially outward to form two ring edges, and the two ring edges are symmetrically arranged along the axial direction of the limiting cylinder; a pair of metal rubber rings, wherein the metal rubber rings are coaxially sleeved outside the limiting cylinder and clamped between the steel sleeve and the first limiting plate or the second limiting plate; two sealing mechanisms for metal vibration dampers as described above, wherein the two end clamping rings are respectively axially clamped with the outer end faces of the first limiting plate and the second limiting plate, and the two clamping grooves of the two wall clamping rings are respectively clamped with the two ring edges.

[0011] Optionally, both ends of the steel sleeve extend axially to form a pair of sleeves, the inner diameter of the sleeve matches the outer diameter of the metal rubber ring, and the outer diameter of the sleeve matches the outer diameters of the first limiting plate and the second limiting plate; the ring is coaxially arranged on the outer side walls of the two sleeves.

[0012] Optionally, the telescopic tube is in a bellows shape, the inner diameters of both ends of the telescopic tube are the maximum inner diameters of the telescopic tube, and are coaxially connected to the end clamping ring and the wall clamping ring respectively.

[0013] Optionally, a screw is further included, which is coaxially inserted in the limiting cylinder, and the threaded end of the screw is used for threaded connection with the external environment to press the first limiting disk, the limiting cylinder and the second limiting disk against each other.

[0014] Optionally, the second limiting disk and the limiting cylinder are formed integrally.

[0015] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0016] The present invention provides a sealing mechanism for a metal shock absorber. A telescopic tube is provided, and a coaxial sleeve is provided outside the metal shock absorber to seal the side wall outside the metal shock absorber. An end clamp ring and a wall clamp ring are further provided, so that the two are respectively connected to the two ends of the telescopic tube, and are respectively clamped with the end face of the metal shock absorber and the ring edge of the side wall of the steel sleeve in the middle of the metal shock absorber, so that the two ends of the telescopic tube are sealed. When the metal shock absorber generates metal powder chips due to friction and wear during use, the metal powder chips are sealed in the sealing mechanism, so as to effectively prevent the metal powder chips from overflowing into the environment; and during the use of the metal shock absorber, the steel sleeve will move slightly, and the telescopic tube can be axially telescoped, so as to effectively and adaptively compensate for the slight displacement of the steel sleeve, so as to avoid damage and leakage of the sealing mechanism; through the mutual cooperation of the above-mentioned features, the sealing mechanism for the metal shock absorber can effectively solve the problem of metal powder chips generated and overflowing during the use of the metal shock absorber. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0018] Figure 1 A half-section schematic diagram of a sealing mechanism for a metal vibration damper provided in an embodiment of the present invention;

[0019] Figure 2 A half-section schematic diagram of a metal vibration damper provided in an embodiment of the present invention.

[0020] Marks and corresponding parts names in the attached drawings:

[0021] 1-limiting cylinder; 2-first limiting plate; 3-second limiting plate; 4-steel sleeve; 5-metal rubber ring; 6-vibration-damped device; 7-ring edge; 8-sleeve; 9-screw; 10-end clamping ring; 11-embedded ring; 20-wall clamping ring; 21-slot; 30-telescopic tube. DETAILED DESCRIPTION

[0022] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0023] Please refer to Figure 1The embodiment of the present invention provides a sealing mechanism for a metal vibration damper, comprising an end clamp ring 10, the outer diameter of which matches the end face diameters at both ends of the metal vibration damper, and the end clamp ring 10 is used to clamp with the end face of the metal vibration damper along the axial direction; the second comprises a wall clamp ring 20, the inner diameter of which matches the outer diameter of the steel sleeve in the middle of the metal vibration damper, and the inner wall of the wall clamp ring 20 is provided with a clamping groove 21 along the circumferential direction, and the clamping groove 21 is used to clamp with the ring edge of the side wall of the steel sleeve in the middle of the metal vibration damper; the third comprises a telescopic tube 30, which is coaxially sleeved outside the metal vibration damper, and the two ends of the telescopic tube 30 are coaxially connected to the end clamp ring 10 and the wall clamp ring 20 respectively.

[0024] The sealing mechanism for the metal shock absorber provided in the present embodiment is provided with a telescopic tube 30, which is coaxially sleeved outside the metal shock absorber to seal the side wall outside the metal shock absorber. Furthermore, an end clamp ring 10 and a wall clamp ring 20 are provided, so that the two are respectively connected to the two ends of the telescopic tube 30, and are respectively clamped with the end face of the metal shock absorber and the ring edge of the side wall of the steel sleeve in the middle of the metal shock absorber, so as to seal the two ends of the telescopic tube 30. When the metal shock absorber generates metal chips due to friction and wear during use, the metal chips are sealed in the sealing mechanism, so as to effectively prevent the metal chips from overflowing into the environment; and during the use of the metal shock absorber, the steel sleeve will move slightly, and the telescopic tube 30 can be axially telescoped, so as to effectively and adaptively compensate for the slight displacement of the steel sleeve, so as to avoid damage and leakage of the sealing mechanism; through the mutual cooperation of the above-mentioned features, the sealing mechanism for the metal shock absorber can effectively solve the problem of metal chips generated and overflowing during the use of the metal shock absorber.

[0025] In order to improve the clamping tightness between the end clamping ring 10 and the end face of the metal vibration damper, the end clamping ring 10 is provided with an embedded ring 11 on the annular surface facing the wall clamping ring 20, and the embedded ring 11 is used to be embedded in the end face of the metal vibration damper along the axial direction; when the embedded ring 11 is embedded in the end face of the metal vibration damper, the side of the end clamping ring 10 away from the wall clamping ring 20 is flush with the end face of the metal vibration damper.

[0026] To further explain the specific structure of the telescopic tube 30 , the telescopic tube 30 is in the shape of a bellows.

[0027] Please Figure 1 Further reference Figure 2The present embodiment further provides a metal vibration damper, comprising: a limiting cylinder 1, wherein a first limiting plate 2 and a second limiting plate 3 are respectively disposed at both ends of the limiting cylinder 1, wherein the first limiting plate 2 and the second limiting plate 3 are symmetrically arranged, and the second limiting plate 3 is used to be attached to and fixedly connected with the external environment; a second limiting cylinder 1 comprises a steel sleeve 4, wherein the steel sleeve 4 is coaxially slidably sleeved outside the limiting cylinder 1, wherein the steel sleeve 4 is used to be connected with a vibration damped device 6, wherein the outer side wall of the steel sleeve 4 extends radially outward to form two ring edges 7, wherein the two ring edges 7 It is symmetrically arranged along the axial direction of the limit cylinder 1; the third includes a pair of metal rubber rings 5, which are coaxially sleeved on the outside of the limit cylinder 1 and clamped between the steel sleeve 4 and the first limit plate 2 or the second limit plate 3; the fourth includes two of the above-mentioned sealing mechanisms for metal shock absorbers, the two end clamping rings 10 are respectively axially clamped with the outer end surfaces of the first limit plate 2 and the second limit plate 3, and the two clamping grooves 21 of the two wall clamping rings 20 are respectively clamped with the two ring edges 7.

[0028] Through the above arrangement, when the vibration-damped device 6 arranged on the steel sleeve 4 is vibrated, the steel sleeve 4 is driven to vibrate together, and the steel sleeve 4 slides along the axial direction of the limit cylinder 1, thereby squeezing the metal rubber ring 5. The metal rubber ring 5 eliminates force through its own elasticity to play a role in buffering and vibration reduction. The first limit plate 2 and the second limit plate 3 are respectively used to axially support the two metal rubber rings 5 ​​to ensure the structural performance of the vibration reduction structure; on this basis, by providing the two above-mentioned sealing mechanisms and installing them in the above-mentioned manner, the wear parts in the vibration reduction process are effectively sealed. When the metal vibration absorber produces metal chips due to friction and wear during use, the metal chips are sealed in the sealing mechanism, thereby effectively preventing the metal chips from overflowing into the environment, and the telescopic tube 30 can effectively compensate for the slight axial slip of the steel sleeve 4 to avoid the collapse of the sealing mechanism structure.

[0029] In order to further limit the radial deformation of the metal rubber ring 5 to ensure its axial buffering and vibration reduction performance and to preliminarily seal the metal rubber ring 5, the two ends of the steel sleeve 4 extend axially to form a pair of sleeves 8, the inner diameter of the sleeve 8 matches the outer diameter of the metal rubber ring 5, and the outer diameter of the sleeve 8 matches the outer diameters of the first limiting plate 2 and the second limiting plate 3; the ring edge 7 is coaxially arranged on the outer side walls of the two sleeves 8.

[0030] Preferably, the telescopic tube 30 is in a bellows shape, and the inner diameters of both ends of the telescopic tube 30 are the maximum inner diameters of the telescopic tube 30 , and are coaxially connected to the end clamp ring 10 and the wall clamp ring 20 , respectively.

[0031] In order to fix the metal vibration damper to the device base or the external environment, the above-mentioned metal vibration damper also includes a screw 9, which is coaxially inserted in the limiting cylinder 1, and the threaded end of the screw 9 is used for threaded connection with the external environment to press the first limiting plate 2, the limiting cylinder 1 and the second limiting plate 3 against each other.

[0032] Preferably, the second limiting plate 3 and the limiting cylinder 1 are formed integrally.

[0033] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A sealing mechanism for a metal vibration damper, characterized in that: include: An end clamping ring (10), the outer diameter of the end clamping ring (10) matches the end surface diameters of the two ends of the metal vibration damper, and the end clamping ring (10) is used to clamp with the end surface of the metal vibration damper along the axial direction; A wall clamping ring (20), the inner diameter of which matches the outer diameter of the steel sleeve in the middle of the metal vibration damper, the inner wall of which is provided with a clamping groove (21) along the circumferential direction, the clamping groove (21) being used for clamping with the ring edge of the side wall of the steel sleeve in the middle of the metal vibration damper; A telescopic tube (30) is coaxially sleeved outside the metal vibration damper, and two ends of the telescopic tube (30) are coaxially connected to the end clamping ring (10) and the wall clamping ring (20) respectively.

2. The sealing mechanism for a metal vibration damper according to claim 1, characterized in that: The end clamping ring (10) is provided with an insert ring (11) protruding from the ring surface facing the wall clamping ring (20), and the insert ring (11) is used to be embedded in the end surface of the metal vibration damper along the axial direction; When the embedded ring (11) is embedded in the end surface of the metal vibration damper, the side of the end clamping ring (10) away from the wall clamping ring (20) is flush with the end surface of the metal vibration damper.

3. The sealing mechanism for a metal vibration damper according to claim 2, characterized in that: The telescopic tube (30) is in the shape of a bellows.

4. A metal vibration damper, characterized in that: include: A limiting cylinder (1), wherein two ends of the limiting cylinder (1) are respectively provided with a first limiting plate (2) and a second limiting plate (3), the first limiting plate (2) and the second limiting plate (3) are symmetrically arranged, and the second limiting plate (3) is used to be attached to and fixedly connected with the external environment; A steel sleeve (4), the steel sleeve (4) being coaxially slidably sleeved outside the limiting cylinder (1), the steel sleeve (4) being used to connect with the vibration-damped equipment (6), the outer side wall of the steel sleeve (4) extending radially outward to form two annular edges (7), the two annular edges (7) being symmetrically arranged along the axial direction of the limiting cylinder (1); A pair of metal rubber rings (5), wherein the metal rubber rings (5) are coaxially sleeved outside the limiting cylinder (1) and are clamped between the steel sleeve (4) and the first limiting plate (2) or the second limiting plate (3); Two sealing mechanisms for metal shock absorbers as described in any one of claims 1 to 3, wherein the two end clamping rings (10) are respectively axially clamped with the outer end surfaces of the first limiting plate (2) and the second limiting plate (3), and the two clamping grooves (21) of the two wall clamping rings (20) are respectively clamped with the two ring edges (7).

5. The metal vibration damper according to claim 4, characterized in that: The two ends of the steel sleeve (4) extend axially to form a pair of sleeves (8), the inner diameter of the sleeve (8) matches the outer diameter of the metal rubber ring (5), and the outer diameter of the sleeve (8) matches the outer diameter of the first limiting plate (2) and the second limiting plate (3); The ring edge (7) is coaxially arranged on the outer side walls of the two sleeves (8).

6. The metal vibration damper according to claim 5, characterized in that: The telescopic tube (30) is in the shape of a corrugated tube. The inner diameters of both ends of the telescopic tube (30) are the maximum inner diameters of the telescopic tube (30) and are coaxially connected to the end clamping ring (10) and the wall clamping ring (20) respectively.

7. The metal vibration damper according to claim 4, characterized in that: It also includes a screw (9), which is coaxially inserted in the limiting cylinder (1), and the threaded end of the screw (9) is used for threaded connection with the external environment, so that the first limiting plate (2), the limiting cylinder (1) and the second limiting plate (3) are pressed against each other.

8. The metal vibration damper according to claim 7, characterized in that: The second limiting plate (3) and the limiting cylinder (1) are integrally formed.

Images