CN213270837U

CN213270837U - Shock absorber sleeve

Info

Publication number: CN213270837U
Application number: CN202021570617.4U
Authority: CN
Inventors: 肖乾; 金菘; 乔翔宇
Original assignee: Yangzhou Huajiao Rail Transit Technology Co ltd
Current assignee: Yangzhou Huajiao Rail Transit Technology Co ltd
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2021-05-25
Anticipated expiration: 2030-07-31

Abstract

The utility model discloses a bumper shock absorber sleeve relates to shock attenuation equipment technical field. The shock absorber sleeve comprises a cylindrical fixed block, wherein a circular through hole is formed in the upper surface of the cylindrical fixed block, a threaded through hole is formed in the upper surface of the cylindrical fixed block, a bolt is in threaded connection with the threaded through hole of the cylindrical fixed block, a first ring is fixedly connected to the lower surface of the cylindrical fixed block, an auxiliary conduction device is arranged below the cylindrical fixed block, an emergency auxiliary shock absorption device is arranged below the auxiliary conduction device, the auxiliary conduction device comprises a dustproof protective sleeve, a second ring is fixedly connected to the lower end of the inner wall of the dustproof protective sleeve, the upper end of the inner wall of the dustproof protective sleeve is fixedly connected to the circumferential side surface of the first ring, the lower surface of the second ring is fixedly connected with the first fixed block, a spherical groove is formed in the upper surface of the first fixed block, a, the service life of the product is prolonged.

Description

Shock absorber sleeve

Technical Field

The utility model relates to a shock attenuation equipment technical field specifically is the bumper shock absorber sleeve.

Background

The shock absorber is used for inhibiting the shock when the spring absorbs the shock and rebounds and the impact from the road surface. The damping device is widely applied to automobiles and is used for accelerating the attenuation of the vibration of a frame and an automobile body so as to improve the driving smoothness of the automobiles. When the shock absorber passes through the uneven road surface, although the shock absorbing spring can filter the shock of the road surface, the spring can still reciprocate, and the shock absorber is used for inhibiting the spring from jumping. The shock absorber and the elastic element take on the tasks of buffering and absorbing shock, and the too large damping force can cause the elasticity of the suspension to be deteriorated and even cause the connecting piece of the shock absorber to be damaged, so the contradiction between the elastic element and the shock absorber needs to be adjusted. Hydraulic shock absorbers are widely used in automotive suspension systems. The principle is that when the frame and the axle do reciprocating relative motion and the piston reciprocates in the cylinder of the shock absorber, oil in the shell of the shock absorber repeatedly flows into another cavity from the cavity through narrow holes. At this time, the friction between the liquid and the inner wall and the internal friction of the liquid molecules form a damping force to the vibration, and a layer of sleeve is arranged on the outer surface of the shock absorber for protection.

When a high-speed train runs at a high speed, the shock absorber can be subjected to uneven pressure when the train turns or shakes, a gasket and a shock absorption rod inside the shock absorber can be abraded for a long time, and a sleeve on the market is complex, so that a simple shock absorber sleeve capable of reducing abrasion is needed at present.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bumper shock absorber sleeve to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the shock absorber sleeve comprises a cylindrical fixed block, wherein a circular through hole is formed in the upper surface of the cylindrical fixed block, a threaded through hole is formed in the upper surface of the cylindrical fixed block, a bolt is connected to the threaded through hole of the cylindrical fixed block in a threaded manner, a first circular ring is fixedly connected to the lower surface of the cylindrical fixed block, an auxiliary conduction device is arranged below the cylindrical fixed block, and an emergency auxiliary shock absorption device is arranged below the auxiliary conduction device.

Preferably, the auxiliary conduction device comprises a dustproof protective sleeve, the lower end of the inner wall of the dustproof protective sleeve is fixedly connected with a second circular ring, the upper end of the inner wall of the dustproof protective sleeve is fixedly connected with the circumferential side surface of the first circular ring, the lower surface of the second circular ring is fixedly connected with the first fixed block, the upper surface of the first fixing block is provided with a spherical groove, the upper surface of the first fixing block is fixedly connected with a first spring, a steel ball is attached to the upper part of the spherical surface of the spherical groove of the first fixing block, a circular through hole is attached to the upper part of the spherical surface of the steel ball, a second fixed block is fixedly connected to the lower surface of the fixed block, a third fixed block is fixedly connected to the lower surface of the second fixed block, the dustproof protective sleeve comprises a first spring, a second spring, a first ring and a second ring, wherein the circumferential side surface of the first spring is slidably connected with the inner wall of the dustproof protective sleeve, the lower end of the circumferential side surface of the first spring is fixedly connected with the inner wall of the second ring, and the upper end of the circumferential side surface of the first spring is fixedly connected with the inner wall of the first ring.

Preferably, urgent supplementary damping device includes the sleeve pipe, sleeve pipe upper surface center department has seted up circular through-hole, two circumference sides of sheathed tube circular through-hole inner wall sliding connection fixed block, three circumference sides of sleeve pipe inner wall sliding connection fixed block, the inside center department fixedly connected with ring three of sleeve pipe lower surface, the inside center department fixedly connected with bumper shock absorber of sleeve pipe lower surface, three lower surfaces of surface fixed connection fixed block on the bumper shock absorber, the inside fixedly connected with spring two of sleeve pipe lower surface.

Preferably, the three inner walls of the circular ring are connected with the circumferential side surface of the shock absorber in a sliding mode, the inner part of the second spring is connected with the three circumferential side surfaces of the circular ring in a sliding mode, and the circumferential side surfaces of the second spring are connected with the inner wall of the circular sleeve in a sliding mode.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the shock absorber sleeve is sleeved outside an existing shock absorber, a cylindrical fixing block is fixedly connected to the surface of original equipment through bolts, when the cylindrical fixing block above the shock absorber sleeve can be subjected to pressure transmission to a steel ball, the steel ball transmits the pressure to a first fixing block, the fixing block transmits the pressure to the upper end of the shock absorber again, the pressure is not possibly vertical force in the transmission process, the direction of the stress can be changed due to turning or shaking of a high-speed train in the stress process, the steel ball is placed at the center of a circular through hole, the cylindrical fixing block can deviate when being subjected to the non-vertical pressure, but the pressure can be changed in direction and transmitted to a second fixing block due to the shape of the steel ball and the support of the first spring, the shock absorber is transmitted again, and the damage to the shock absorber due to turning or shaking of the high-speed train and the force transmission in different directions is reduced, can wear out inside inseparable original paper when long-term atress many times to lead to the oil leak of bumper shock absorber, supplementary conduction device can be with the stable vertical action that keeps of power to the bumper shock absorber, reduces the wearing and tearing to the bumper shock absorber, prolongs its life-span.

(2) This bumper shock absorber sleeve, the elastic coefficient of spring one is less than spring two, and the elastic coefficient of spring two is less than the bumper shock absorber, and fixed block three not only can conduct the bumper shock absorber with doing all can, still can transmit spring two with doing all can, and when the bumper shock absorber can not normally work because wearing and tearing, wastrel or life-span oil leak, spring two can replace the bumper shock absorber temporarily and carry out the shock attenuation, guarantees high-speed train's normal operating, guarantees passenger's life safety.

Drawings

FIG. 1 is a front view of the shock absorber sleeve according to the present invention;

fig. 2 is a schematic structural view of the section of the shock absorber sleeve of the present invention.

In the figure: 101 cylindrical fixing blocks, 102 circular through holes, 103 bolts, 104 circular rings I, 2 auxiliary conduction devices, 201 dustproof protective sleeves, 202 circular rings II, 203 fixing blocks I, 204 spring I, 205 steel balls, 206 fixing blocks II, 207 fixing blocks III, 3 emergency auxiliary damping devices, 301 sleeves, 302 circular rings III, 303 dampers and 304 spring II.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 2, the present invention provides a technical solution: the shock absorber sleeve comprises a cylindrical fixed block 101, a circular through hole 102 is formed in the upper surface of the cylindrical fixed block 101, a threaded through hole is formed in the upper surface of the cylindrical fixed block 101, a bolt 103 is connected to the threaded through hole of the cylindrical fixed block 101 in a threaded manner, a first ring 104 is fixedly connected to the lower surface of the cylindrical fixed block 101, an auxiliary conduction device 2 is arranged below the cylindrical fixed block 101, an emergency auxiliary shock absorption device 3 is arranged below the auxiliary conduction device 2, the auxiliary conduction device 2 comprises a dustproof protective sleeve 201, a second ring 202 is fixedly connected to the lower end of the inner wall of the dustproof protective sleeve 201, the upper end of the inner wall of the dustproof protective sleeve 201 is fixedly connected to the circumferential side surface of the first ring 104, a first fixed block 203 is fixedly connected to the lower surface of the second ring 202, a spherical groove is formed in the upper surface of the, the upper part of the spherical surface of the steel ball 205 is attached with a circular through hole 102, the lower surface of the first fixing block 203 is fixedly connected with a second fixing block 206, the lower surface of the second fixing block 206 is fixedly connected with a third fixing block 207, the emergency auxiliary damping device 3 comprises a sleeve 301, the center of the upper surface of the sleeve 301 is provided with a circular through hole, the inner wall of the circular through hole of the sleeve 301 is slidably connected with the circumferential side surface of the second fixing block 206, the inner wall of the sleeve 301 is slidably connected with the circumferential side surface of the third fixing block 207, the center of the inner part of the lower surface of the sleeve 301 is fixedly connected with a third ring 302, the center of the inner part of the lower surface of the sleeve 301 is fixedly connected with a damper 303, the upper surface of the damper 303 is fixedly connected with the lower surface of the third fixing block 207, the inner surface of the sleeve 301 is fixedly connected with a second spring, the inner wall of the third ring 302 is connected with the circumferential side surface of the shock absorber 303 in a sliding mode, the inner part of the second spring 304 is connected with the circumferential side surface of the third ring 302 in a sliding mode, the circumferential side surface of the second spring 304 is connected with the inner wall of the sleeve 301 in a sliding mode, the third fixing block 207 can conduct force to the shock absorber 303 and can also transmit the force to the second spring 304, and when the shock absorber 303 cannot normally work due to abrasion, defective products or oil leakage at the end of the service life, the second spring 304 can temporarily replace the shock absorber 303 to absorb shock, normal operation of a high-speed train is guaranteed, and life safety of passengers is.

The working principle is as follows:

the first step is as follows: the whole device is sleeved outside the existing shock absorber 303, the cylindrical fixing block 101 is fixedly connected to the surface of the original equipment through the bolt 103, when the cylindrical fixing block 101 above the device is subjected to pressure transmission to the steel ball 205, the steel ball 205 transmits the pressure to the first fixing block 203, and the first fixing block 203 transmits the pressure to the upper end of the shock absorber 303, because the pressure is not a vertical force in the transmission process, the direction of the stress can be changed due to the turning or shaking of a high-speed train in the stress process, the steel ball 205 is placed at the center of the circular through hole 102, the cylindrical fixing block 101 can deviate when the pressure is not vertical, but because of the shape of the steel ball 205 and the support of the first spring 204, the pressure can change the direction and is transmitted to the second fixing block 206 and then transmitted to the shock absorber 303, the damage to the shock absorber 303 due to the turning or shaking of the high-speed train and the force transmission in different, the tight original parts in the shock absorber 303 can be abraded in long-term multiple stress, so that oil leakage of the shock absorber 303 is caused, the auxiliary conduction device 2 can stably keep force to vertically act on the shock absorber 303, abrasion to the shock absorber 303 is reduced, and the service life of the shock absorber 303 is prolonged.

The second step is that: the elastic coefficient of the first spring 204 is smaller than that of the second spring 304, the elastic coefficient of the second spring 304 is smaller than that of the shock absorber 303, the third fixed block 207 not only transmits force to the shock absorber 303, but also transmits the force to the second spring 304, and when the shock absorber 303 cannot normally work due to abrasion, defective products or oil leakage at the end of the life, the second spring 304 can temporarily replace the shock absorber 303 to absorb shock, so that the normal operation of a high-speed train is guaranteed, and the life safety of passengers is guaranteed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The shock absorber sleeve comprises a cylindrical fixed block (101), wherein a circular through hole (102) is formed in the upper surface of the cylindrical fixed block (101), and a threaded through hole is formed in the upper surface of the cylindrical fixed block (101), and the shock absorber sleeve is characterized in that: a threaded through hole of the cylindrical fixing block (101) is in threaded connection with a bolt (103), and the lower surface of the cylindrical fixing block (101) is fixedly connected with a first ring (104);

an auxiliary conduction device (2) is arranged below the cylindrical fixed block (101);

an emergency auxiliary damping device (3) is arranged below the auxiliary conduction device (2).

2. The shock absorber sleeve of claim 1, wherein: supplementary conduction device (2) are including dustproof protective sheath (201), dustproof protective sheath (201) inner wall lower extreme fixedly connected with ring two (202), dustproof protective sheath (201) inner wall upper end fixed connection ring one (104) circumference side, fixed block one (203) is connected with to ring two (202) lower fixed surface, spherical groove has been seted up to fixed block one (203) upper surface, fixed block one (203) upper surface fixedly connected with spring one (204), the spherical groove spherical surface top laminating of fixed block one (203) has steel ball (205), steel ball (205) spherical surface top laminating circular through-hole (102), fixed block one (203) lower fixed surface fixedly connected with fixed block two (206), fixed block two (206) lower fixed surface fixedly connected with fixed block three (207).

3. The shock absorber sleeve of claim 1, wherein: urgent supplementary damping device (3) are including sleeve pipe (301), sleeve pipe (301) upper surface center department has seted up circular through-hole, the circular through-hole inner wall sliding connection fixed block two (206) circumference side of sleeve pipe (301), sleeve pipe (301) inner wall sliding connection fixed block three (207) circumference side, sleeve pipe (301) lower surface inside center department fixedly connected with ring three (302), sleeve pipe (301) lower surface inside center department fixedly connected with bumper shock absorber (303), three (207) lower surfaces of bumper shock absorber (303) upper surface fixed connection fixed block, sleeve pipe (301) lower surface inside fixedly connected with spring two (304).

4. The shock absorber sleeve of claim 2, wherein: the dustproof protective sleeve is characterized in that the circumferential side face of the first spring (204) is in sliding connection with the inner wall of the dustproof protective sleeve (201), the lower end of the circumferential side face of the first spring (204) is fixedly connected with the inner wall of the second ring (202), and the upper end of the circumferential side face of the first spring (204) is fixedly connected with the inner wall of the first ring (104).

5. The shock absorber sleeve of claim 3, wherein: the inner wall of the ring III (302) is connected with the circumferential side surface of the shock absorber (303) in a sliding manner.

6. The shock absorber sleeve of claim 3, wherein: the inner part of the second spring (304) is connected with the circumferential side surface of the third ring (302) in a sliding manner, and the circumferential side surface of the second spring (304) is connected with the inner wall of the sleeve (301) in a sliding manner.