CN111963600A

CN111963600A - Rubber buffer piece with high durability

Info

Publication number: CN111963600A
Application number: CN202010934454.1A
Authority: CN
Inventors: 郑瀚杰; 熊洋华; 刘荣滨
Original assignee: Yingtao Jiulong Technology Industry Co ltd
Current assignee: Yingtao Jiulong Technology Industry Co ltd
Priority date: 2020-09-08
Filing date: 2020-09-08
Publication date: 2020-11-20

Abstract

The invention provides a rubber buffer piece with high durability, which comprises a cylindrical main body, wherein a middle hole is coaxially formed in the axial end part of the main body in a penetrating mode, bearing tables are arranged at two ends of the main body, a flexible protective sleeve completely wrapping the main body is connected between the two bearing tables in a sealing mode, a cavity is formed between the main body and the flexible protective sleeve, the cavity is set to be vacuum, and a supporting framework is arranged in the middle hole of the main body. According to the invention, the main body is wrapped by the flexible protective sleeve, and the cavity is set to be vacuum, so that the direct contact between substances which directly influence the aging speed of the main body, such as external oxygen, ozone, ultraviolet light, chemical media and the like, and the main body can be effectively isolated, the aging speed of the main body is delayed, and the advantage that the flexible protective sleeve is suitable for being used in oil stain and high-temperature environments for a long time is realized.

Description

Rubber buffer piece with high durability

Technical Field

The invention relates to the technical field of rubber products, in particular to a rubber buffer piece with high durability.

Background

The buffer piece is commonly used in devices and parts which can frequently generate displacement or vibration, on one hand, the rigid collision among all the parts can be avoided, on the other hand, all the parts can be protected, and the service life of all the parts is effectively ensured. The rubber buffer is widely used as a rubber buffer, the rubber has the biggest characteristics of very small elastic modulus, very high elongation, various bending deformation and bending deformation resistance, and small hysteresis loss, and the basic performances of the rubber make the rubber become an industrially excellent material for damping, sealing, bending, wear resistance, corrosion resistance, insulation, bonding and the like.

Current patent publication number is CN 111379806A's chinese patent, an automobile cushion rubber spare assembly structure is proposed, including mounting groove and buffer, the lateral wall of bolster offsets with the diapire of mounting groove, the equal fixedly connected with slide bar of both sides inner wall of mounting groove, fixedly connected with spacing ring between the lateral wall of two slide bars, the inner wall of spacing ring offsets with the lateral wall of bolster, sliding connection has the sliding sleeve on the slide bar, the upper end lateral wall fixedly connected with branch of sliding sleeve, the lateral wall fixedly connected with wedge of branch, the lateral wall of wedge offsets with the lateral wall of bolster, the lateral wall of sliding sleeve passes through reset spring and the lateral wall fixed connection of spacing ring, reset spring cover is located on the slide bar.

The above prior art solutions have the following drawbacks: the rubber is generally divided into natural rubber with high elasticity and synthetic rubber with various comprehensive properties, and the rubber buffer part is generally made of natural rubber with the best elasticity to play excellent buffering and energy absorbing properties, but the natural rubber has poor oil resistance and heat resistance due to the characteristics of the natural rubber, so that when the rubber buffer part made of the natural rubber is used in a complex environment, the rubber buffer part is easy to age due to direct contact with chemical media, oxygen and light, the service life of the rubber buffer part is seriously influenced, and the durability of the rubber buffer part is greatly reduced.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to overcome the defects of the prior art, and provide a rubber buffer with high durability, which has the advantage of being suitable for being used in oil-polluted and high-temperature environments for a long time.

In order to achieve the purpose, the invention provides a rubber buffer piece with high durability, which comprises a cylindrical main body, wherein a middle hole is coaxially formed in the axial end part of the main body in a penetrating mode, bearing tables are arranged at two ends of the main body, a flexible protective sleeve completely wrapping the main body is connected between the two bearing tables in a sealing mode, a cavity is formed between the main body and the flexible protective sleeve, the cavity is set to be vacuum, and a supporting framework is arranged in the middle hole of the main body.

Further, the cavity is filled with a slow release substance for preventing the body from being aged prematurely.

Further, the slow release matter is inert gas and/or an anti-aging agent solution.

Further, be provided with on the bearing platform with the balanced pressure section of thick bamboo of cavity intercommunication, be provided with in the balanced pressure section of thick bamboo and be used for balancing balanced pressure section of thick bamboo with the balanced pressure mechanism of cavity internal gas pressure.

Furthermore, the constant pressure mechanism comprises a slide rod coaxially and fixedly connected in the constant pressure barrel, a constant pressure sheet matched with the inner wall of the constant pressure barrel in a sliding manner is sleeved on the slide rod, and a reset assembly used for driving the constant pressure sheet to reset is arranged in the constant pressure barrel.

Furthermore, the reset assembly comprises an elastic part sleeved on the sliding rod, and the elastic part is arranged on one side, away from the constant pressure barrel and the communicating part of the cavity, of the constant pressure sheet.

Furthermore, a connecting pipe is communicated between the constant pressure barrel and the flexible protective sleeve, and a flow valve is arranged on the connecting pipe.

Further, the flexible protective sleeve is made of silicon rubber.

Further, the support framework comprises an outer barrel and an inner barrel which are coaxial, and the outer peripheral wall of the inner barrel arc surface is abutted to the inner peripheral wall of the arc surface of the outer barrel.

Further, the outer peripheral wall of the inner barrel arc surface is fixedly connected with a plurality of convex strips along the axial direction of the inner barrel arc surface, a plurality of long grooves along the axial direction of the outer barrel arc surface are formed in the inner peripheral wall of the outer barrel arc surface in a penetrating mode, the convex strips are matched with the long grooves in a sliding mode in a one-to-one correspondence mode, and one side, deviating from the inner barrel, of the convex strips is flush with the outer wall of the outer barrel.

According to the rubber buffer piece with high durability, the main body is wrapped by the flexible protective sleeve, the cavity is set to be vacuum, external substances such as oxygen, ozone, ultraviolet light and chemical media which directly affect the aging speed of the main body can be effectively isolated from being in direct contact with the main body, and the vacuum cavity can also isolate external heat transfer to a certain extent, so that the contact of the main body and factors inducing the aging of the main body is reduced as far as possible during working, the aging speed of the main body is delayed, and the rubber buffer piece has the advantage of being suitable for being used in oil stain and high-temperature environments for a long time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following further describes the invention in detail according to the embodiments of the present invention with reference to the accompanying drawings.

Fig. 1 is a sectional view of the overall structure of the present invention.

Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.

The reference numerals in the drawings are explained below.

Main body	1	Mesopores	2	Bearing table	3
						Flexible protective cover	4	Hollow cavity	5	Sustained release material	6
Constant pressure cylinder	7	Sliding bar	8	Balance pressing sheet	9
						Elastic piece	10	Connecting pipe	11	Flow valve	12
Outer cylinder	13	Inner cylinder	14	Convex strip	15
						Elongated slot	16

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "front", "upper", "lower", "left", "right", "vertical", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-2, the present invention provides a rubber buffer with high durability, which includes a cylindrical main body 1, wherein an axial end of the main body 1 is coaxially penetrated and provided with a central hole 2, the main body 1 is provided with a supporting framework in the central hole 2, two ends of the main body 1 are both provided with bearing tables 3, a flexible protection cover 4 completely covering the main body 1 is hermetically connected between the two bearing tables 3, the flexible protection cover 4 is made of silicon rubber, a cavity 5 is formed between the main body 1 and the flexible protection cover 4, the cavity 5 is provided with a vacuum, a slow release material 6 for preventing the premature aging of the main body 1 is filled in the cavity 5, the slow release material 6 is an inert gas and/or an antioxidant solution, in this embodiment, the slow release material 6 is preferably a mixture of helium and a phenol antioxidant.

The main body 1 is arranged between two components needing buffering through two bearing tables 3, the main body 1 is wrapped by the flexible protective sleeve 4 made of silicon rubber, heat resistance and oil resistance ensure the service life of the flexible protective sleeve 4, the cavity 5 is set to be vacuum, and the direct contact between substances which have direct influence on the aging speed of the main body 1, such as external oxygen, ozone, ultraviolet light, chemical media and the like, and the main body 1 can be effectively isolated, and the vacuum cavity 5 can also isolate the transmission of external heat to a certain extent, so that the contact between the main body 1 and factors inducing the aging of the main body 1 is reduced as much as possible when the main body 1 works, the aging speed of the main body 1 is delayed, and the advantage that the main body is suitable for being used under oil stain and high-temperature environments for a long time; meanwhile, the cavity 5 is further filled with the slow release material 6, so that the isolation effect of the flexible protective sleeve 4 on the main body 1 is improved, the helium gas is effectively isolated from factors influencing the aging of the main body 1, and the phenol anti-aging agent captures active substances generated in the thermal oxidation aging process of the main body 1 made of rubber on the main body 1, so that the main body 1 is protected.

As shown in fig. 1-2, a pressure-balancing cylinder 7 communicated with the cavity 5 is arranged on the bearing table 3, a pressure-balancing mechanism for balancing the pressure in the pressure-balancing cylinder 7 and the cavity 5 is arranged in the pressure-balancing cylinder 7, the pressure-balancing mechanism includes a slide rod 8 coaxially and fixedly connected in the pressure-balancing cylinder 7, a pressure-balancing sheet 9 slidably fitted to the inner wall of the pressure-balancing cylinder 7 is sleeved on the slide rod 8, a reset component for driving the pressure-balancing sheet 9 to reset is arranged in the pressure-balancing cylinder 7, the reset component includes an elastic member 10 sleeved on the slide rod 8, the elastic member 10 is arranged on one side of the pressure-balancing sheet 9 far away from the communication part between the pressure-balancing cylinder 7 and the cavity 5, and the elastic member; a connecting pipe 11 is communicated between the constant pressure cylinder 7 and the flexible protective sleeve 4, and a flow valve 12 is arranged on the connecting pipe 11.

The main body 1 deforms when being pressed to drive the flexible protection sleeve 4 to deform to a certain extent, so that the actual volume of the cavity 5 changes, the air pressure in the flexible protection sleeve is unbalanced easily, and the service life of the flexible protection sleeve 4 is affected; when the main body 1 is restored to the original state, the deformation force of the elastic part 10 pushes the balance pressing sheet 9 to slide on the sliding rod 8 towards one end close to the connecting pipe 11, so as to ensure that the pressure intensity in the balance pressing cylinder 7 is consistent with that in the flexible protective sleeve 4, and ensure that the slow-release substance 6 effectively protects the main body 1 as far as possible; the flow valve 12 can control the speed of the slow-release substance 6 passing through the connecting pipe 11 and also play a certain role in buffering.

As shown in fig. 1-2, the supporting framework includes an outer cylinder 13 and an inner cylinder 14 which are coaxial, the outer cylinder 13 and the inner cylinder 14 are fixedly connected with the two bearing platforms 3, an outer circumferential wall of an arc surface of the inner cylinder 14 is abutted to an inner circumferential wall of an arc surface of the outer cylinder 13, a plurality of convex strips 15 along an axial direction of the inner cylinder are fixedly connected to an outer circumferential wall of an arc surface of the inner cylinder 14, a plurality of long grooves 16 along an axial direction of the outer cylinder are formed in the inner circumferential wall of an arc surface of the outer cylinder 13 in a penetrating manner, the plurality of convex strips 15 are in one-to-one.

After the main body 1 is pressed to deform, the two bearing tables 3 approach each other to drive the inner cylinder 14 to slide on the inner wall of the outer cylinder 13, and the convex strip 15 on the inner cylinder 14 slides in the long groove 16 on the outer cylinder 13, so that the relative movement of the outer cylinder 13 and the inner cylinder 14 can be limited, and the main body 1 is effectively prevented from being twisted and deformed when being pressed; and one side of the convex strip 15 departing from the inner cylinder 14 is flush with the outer wall of the outer cylinder 13, so that when the inner cylinder 14 slides in the outer cylinder 13, the connecting part of the outer cylinder 13 and the inner cylinder 14 cannot scratch the inner wall of the main body 1.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. The utility model provides a rubber buffer that durability is high, its characterized in that, includes cylindric main part, the mesopore has been seted up in the coaxial run-through of main part axial tip, the main part both ends all are provided with the bearing platform, two sealing connection has the complete parcel between the bearing platform the flexible lag of main part, the main part with be formed with the cavity between the flexible lag, the cavity sets up to the vacuum, the main part in be provided with the support chassis in the mesopore.

2. The highly durable rubber bumper according to claim 1, wherein a release agent for preventing premature aging of the body is filled in the cavity.

3. The highly durable rubber cushion according to claim 2, wherein the slow release substance is an inert gas and/or an antioxidant solution.

4. The rubber buffer of claim 1, wherein a constant pressure cylinder is disposed on the bearing table and is in communication with the cavity, and a constant pressure mechanism is disposed in the constant pressure cylinder for balancing the air pressure in the constant pressure cylinder and the cavity.

5. The rubber buffer part with high durability as claimed in claim 4, wherein the constant pressure mechanism comprises a slide rod coaxially and fixedly connected in the constant pressure cylinder, a constant pressure sheet slidably fitted to an inner wall of the constant pressure cylinder is sleeved on the slide rod, and a reset assembly for driving the constant pressure sheet to reset is arranged in the constant pressure cylinder.

6. The highly durable rubber buffer member as claimed in claim 5, wherein said reset element comprises an elastic element sleeved on said sliding rod, said elastic element is disposed on a side of said constant pressure plate away from a communicating portion between said constant pressure cylinder and said cavity.

7. The highly durable rubber buffer of claim 6, wherein a connecting pipe is connected between said constant pressure cylinder and said flexible protective sleeve, and a flow valve is disposed on said connecting pipe.

8. The highly durable rubber cushioning member according to claim 1, wherein said flexible protective sheath is made of silicone rubber.

9. The highly durable rubber cushion according to claim 1, wherein said supporting frame includes an outer cylinder and an inner cylinder which are coaxial, and said inner cylinder arc outer peripheral wall abuts against an arc inner peripheral wall of said outer cylinder.

10. The rubber buffer member with high durability as claimed in claim 9, wherein the outer circumferential wall of the inner cylinder arc surface is fixedly connected with a plurality of protruding strips along the axial direction thereof, the inner circumferential wall of the outer cylinder arc surface is provided with a plurality of elongated slots along the axial direction thereof in a penetrating manner, the plurality of protruding strips are respectively in one-to-one corresponding sliding fit with the plurality of elongated slots, and one side of the protruding strips away from the inner cylinder is flush with the outer wall of the outer cylinder.