CN2450434Y

CN2450434Y - Shell type air cushion shock absorber

Info

Publication number: CN2450434Y
Application number: CN 00262402
Authority: CN
Inventors: 陈东茂
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-11-22
Filing date: 2000-11-22
Publication date: 2001-09-26
Anticipated expiration: 2010-11-22

Abstract

The utility model relates to an outer shell type air pad shock absorber. The main structure is that a top surface cover of a bottom base is provided with a hollow cylinder cover cylinder with a one-way opening made of rubber material. A protecting cover can be fixedly locked on the bottom base by screws and a convex edge on the bottom part of the cover cylinder can be forced to be pressed between the protecting cover and the bottom base. The top surface of the cover cylinder is provided with a pushing holding table body. Thus when the inner part of the cover cylinder is filled and poured with the gas of predetermined pressure, the cover cylinder is supported and expanded by high pressure air to obtain buffering and shock absorbing purposes.

Description

Outer bell-type air cushion shock absorber

The utility model relates to a kind of machinery buffering and shock preventing device, particularly relate to a kind of install simple, make assembly easily and can produce vertically and the outer bell-type air cushion shock absorber of horizontal shock-absorbing.

Existing a kind of air cushion type shock absorber, as shown in Figure 1, mainly comprise one and hold gas housing 1, one elastic bearing 2, one fixed base 3 and one holds stage body 4, this appearance gas housing 1 is to make hollow cylindrical with metal material, the bottom is provided with a chassis 101, chassis 101 end faces have extended upward a cylindrical shell 102, and be provided with an opening room 103 up in cylindrical shell 102 inside, be equiped with a charging air inlet 104 at cylindrical shell 102 peripheries, can be in room 103 with the gas filling of the suitable pressure of tool, at room 103 opening ends is radially to extend a flange 105 by cylindrical shell 102 top peripheries, this elastic bearing 2 is to make with the rubber material, and can be set in room 103 openings, the end face periphery is provided with a depression ring portion 201, this depression ring portion 201 just is nested in flange 105 bottoms, be provided with several bulge loops 202 in depression ring portion 201 inboards, promptly be provided with a groove 203 between per two bulge loops 202, make its cross section be wavy, in elastic bearing 2 peripheries, be embedded with steel wire and roll a reinforcement ring 204 that is link spring shape, this fixed base 3 is to make with metal material, it is when elastic bearing 2 is made, promptly bury solid in advance in elastic bearing 2 bottom surface central authorities, and be provided with an opening register hole 301 up in inside, this holds stage body 4 is to make plate-like with metal material, the bottom surface convexes with a socket post 401, this socket post 401 just is set in the register hole 301 of this fixed base 3, and end face central authorities are provided with a screw 402 that extends downward socket post 401 inside.

The single unit system of borrowing above-mentioned member to form, when high-pressure air pours into room 103 when inner from charging air inlet 104, elastic bearing 2 can be strutted and be and upwards heave shape, and when holding stage body 4 when bearing board and turning round the vibrations that produced, can reach the air cushion shock-proof effect.

Though this air cushion type shock absorber has the shaking force that is produced in the time of can absorbing the board running, but has following disappearance:

1. has preferable tightness in order to make to hold between gas housing 1 and the elastic bearing 2, accurate processing all will be carried out in these room 103 inner ring surfaces, flange 105 bottom surfaces, and the size of this elastic bearing 2 also will be controlled quite precisely, thus, it is higher to add man-hour desired precision in manufacturing, and manufacture cost also can improve.

2. this elastic bearing 2 is to be inserted in the mode of urging after the first extrusion-deformation to hold gas housing 1 inside again, so comparatively difficult at fit on.

3. elastic bearing 2 is installed in and holds gas housing 1 and room 103 tops, so when charging pressed gas in the room 103,2 abilities with vertical shock-absorbing of elastic bearing are as for laterally shock-absorbing is not enough, so still have shortcoming on shock-absorbing effect.

The purpose of this utility model is to provide a kind of preferable tightness, low cost of manufacture of producing, and can reach the outer bell-type air cushion shock absorber of the shock-absorbing effect of vertical, horizontal.

The outer bell-type air cushion shock absorber of the utility model, be to be covered with a cover tube at a base top surface, this cover tube outside is covered with a protecting cover again, and cover tube end face is equiped with one and holds stage body, this base is to make planar with metal material, nearly peripheral region is provided with several holes, this cover tube is a hollow tube-shape of making and be unidirectional opening with the rubber material, be to be provided with integratedly at an abutment wall top to be one of closed shape and to take over a business, and it is inner and take over a business the bottom surface and be provided with downward opening one and hold air chamber at abutment wall, this abutment wall is provided with a charging air inlet, and radially extend a flange towards the outside at the abutment wall root edge, this flange bottom surface can be smooth in base top surface and be positioned at the hole inboard, this abutment wall with take over a business joining place and flange inside respectively be embedded with roll with steel wire be link spring shape one on reinforcement ring and reinforcement ring once, should go up the reinforcement ring and reach the nylon curtain yarn that is arranged with between the reinforcement ring down more than two layers, this nylon curtain yarn upper end is with by down up and by walking around reinforcement ring on this outward inwardly, the lower end is then with by down last and by interior this time reinforcement ring of walking around outwardly, this protecting cover is to make hollow tube-shape and be located at this cover tube outside with metal material, its inside is provided with the open-work that two ends are sky, this protecting cover bottom is provided with a pressure ring that radially extends, the ring side pressure is built in the flange end face of cover tube in this pressure ring, and outer rim side is provided with several screws, screw can be passed the hole of base and be locked in the screw, impel flange by urgent cramping between base and pressure ring, and make the appearance air chamber be airtight space, being provided with a perforation on protecting cover can protrude out for the charging air inlet outboard end, this holds stage body is to make planar with metal material, the bottom utilizes a conjunction to be cemented in this cover tube end face central authorities, and end face central authorities are provided with a screw, can be for bearing material locking location.

Whereby, when cover tube is inner when charging the air of predetermined pressure, this cover tube is supported by high-pressure air, and holds stage body and hold when the bearing material bottom, can utilize the setting of cover tube and reaches and vertically reach horizontal buffering and shock preventing purpose.

Below, by most preferred embodiment and accompanying drawing outer bell-type air cushion shock absorber of the present utility model is elaborated, in the accompanying drawing:

Fig. 1 is the combination section of existing air cushion type shock absorber;

Fig. 2 is the combination section of the utility model first preferred embodiment;

Fig. 3 is that schematic representation is used in the carrying of the utility model first preferred embodiment;

Fig. 4 is the combination section that the utility model second preferable product is executed example;

Fig. 5 is the combination section of the utility model the 3rd preferred embodiment.

For convenience of description, following embodiment, components identical is represented with identical label.

As shown in Figure 2, the outer bell-type air cushion shock absorber of the utility model embodiment comprises a base 10, a cover tube 20, one protecting cover 30, holds stage body 40 and number screw 50.

This base 10 is to make planar with metal material, and nearly peripheral region is provided with several holes 11.

This cover tube 20 is hollow tube-shapes of making and be unidirectional opening with the rubber material, and be provided with integratedly at an abutment wall 21 tops that are link spring shape in one-body molded mode and be one of closed shape and take over a business 22, abutment wall 21 bottoms then are connected a flange 23 that radially extends outwardly, when cover tube 20 is installed in base 10 end faces, these flange 23 bottom surfaces can be smooth in base 10 end faces and be positioned at hole 11 inboards, be provided with an annular groove 24 that inwardly concaves at flange 23 end faces and abutment wall 21 joining places, and it is inner and take over a business the bottom surface and be provided with downward opening one and hold air chamber 25 at abutment wall 21, this abutment wall 21 is provided with a charging air inlet 26, and this is taken over a business 22 end face central authorities and is provided with the bottom and is a shrinkage pool 27 of closed shape, in addition, the abutment wall 21 of this cover tube 20 with take over a business 22 joining places and flange 23 near periphery inside respectively be embedded with steel wire roll be link spring shape one on reinforcement ring 281 reach reinforcement ring 282, should go up reinforcement ring 281 and reach the nylon curtain yarn 29 that is arranged with between the reinforcement ring 282 down more than two layers, these nylon curtain yarn 29 upper ends are with by down up and by walking around reinforcement ring 281 on this outward inwardly, the lower end then is oppositely by down last and walk around this time reinforcement ring 282 outwardly by interior, and the fiber direction of adjacent two layers of nylon curtain yarn 29 is the setting of staggering.

This protecting cover 30 is to make hollow tube-shape and be located at this cover tube 20 outsides with metal material, its inside is provided with the open-work 31 that two ends are sky, these protecting cover 30 bottoms are provided with a pressure ring 32 that radially extends, the ring side is made the less thickness shape of tool in this pressure ring 32, and can be compressed on flange 23 end faces of cover tube 20, these pressure ring 32 interior ring edges convex with a bulge loop 33 downwards, this bulge loop 33 just can be nested in annular groove 24 inside of cover tube 20, and the outer rim side of pressure ring 32 is provided with a fixing ring 34 of the big thickness of tool, fixedly ring 34 is provided with several screws 35, number screws 50 can be passed the hole 11 of base 10 and are locked in the screw 35, impel flange 23 by urgent cramping between base 10 and pressure ring 32, and make appearance air chamber 25 be airtight space, being provided with a perforation 36 on protecting cover 30 can protrude out for charging air inlet 26 outboard ends.

This holds stage body 40 is to make planar with metal material, convex with a conjunction 41 that is column under the mediad of bottom surface, this conjunction 41 just is fixed in the shrinkage pool 27 of these cover tube 20 end face central authorities, and the stage body 40 end face central authorities that hold that are symmetrical in conjunction 41 also are provided with a screw 42, can supply bearing material (machine that is machine adds) locking location, in cover tube 10 under the state of unaerated, this hold still be reserved with between stage body 40 bottom surfaces and protecting cover 30 tops one closely-spaced apart from I.

As shown in Figure 2, show that assembly is finished and the state of unaerated still, the flange 23 of these cover tube 20 bottoms is subjected to the pressure ring 32 of protecting cover 30 and suppresses, and bulge loop 33 is nested in the annular groove 24, and utilize screw 50 to pass the hole 11 of base 10 and locking in the screw 35 of fixing ring 34, can make flange 23 bottom surfaces and base 10 end faces be airtight fully, and utilize bulge loop 33 to be nested in annular groove 24 inside, can make flange 23 be tied between pressure ring 32 and base 10, and flange 23 can not break away between pressure ring 32 and base 10 by firm embedding.

As shown in Figure 3, to pour into the appearance air chamber 25 of cover tube 20 from charging air inlet 26 inner and when reaching predetermined pressure when gas, this is taken over a business 22 and is subjected to supporting of pressurized gas, can be vertically and also heave up, and this abutment wall 21 is subjected to supporting of pressurized gas, also can be laterally and also heave outwardly, and be subjected to the restriction of protecting cover 30, then ought hold stage body 40 tops has born bearing material 100 and has locked in screw 42 with screw, bearing material 100 strong fixs are being held on the stage body 40, and held with air cushion type by cover tube 20, and make to hold between stage body 40 bottom surfaces and protecting cover 30 tops and have a large-spacing apart from II, borrow this large-spacing whether dwindling apart from II, whether can observe appearance air chamber 25 gas inside pressure easily enough, at this moment, the vertical shaking force that is produced during bearing material 100 running is can reach vertical shock-absorbing purpose by taking over a business 22 when transmitting downwards, and the transverse vibration power that is produced during bearing material 100 running, the effect that then utilizes abutment wall 21 to bloat can reach horizontal shock-absorbing purpose when taking over a business 22 lateral transport.

Utilize the setting of nylon curtain yarn 29, the deformable direction of may command abutment wall is controlled at laterally, and restriction vertically can't produce bigger amount of deformation, and reach vertically, and horizontal shock-absorbing purpose.

By above explanation, generally can again advantage of the present utility model be summarized as follows:

One, this cover tube 20 is to adopt the integral type design, protecting cover 30 is then adopted outer bell-type and will be covered tube 20 flange 23 and be fixed between protecting cover 30 and the base 10, so the processing degree of adaptability of members such as cover tube 20, protecting cover 30, base 10 is less demanding, more or less freely when manufacturing, assembly, manufacture cost is lower.

Two, utilize base 10 and protecting cover 30 will cover the flange 23 firm crampings of tube 20, can guarantee to cover tube 20 and keep preferable tightness, and it is nested against one another with the annular groove 24 of flange 23 that pressure ring 32 is provided with bulge loop 33, except strengthening tightness, can strengthen the effect that combines between flange 23 and the pressure ring 32.

Three, the abutment wall 21 of cover tube 20 can outwards be bloated by pressure air, and has the effect of horizontal shock-absorbing, cooperates taking over a business of top 22 can upwards be supported by pressure air and have the ability of vertical shock-absorbing, so shock-absorbing effect is good.

In addition, as shown in Figure 4, be the utility model second embodiment, it is to make the bolt kenel at the conjunction 41 ' that holds stage body 40 ', and cover tube 20 ' central authorities are provided with a perforation 27 ' and can pass for conjunction 41 ', and after making conjunction 41 ' bottom be inserted into appearance air chamber 25 ' inside, one dunnage 43 ' of socket in regular turn, lock are established a nut 44 ' again, then also can reach the shock-absorbing purpose identical with first embodiment.

Again as shown in Figure 5, can install a damping device additional among the utility model the 3rd embodiment, it is that damping device 60 is installed in these base 10 end faces and cover tube 20 inside, it is to be equiped with a damping liquid 62 (oil) and a piston 63 in a housing 61 inside that are closed shape, this housing 61 is to be installed with a lid 612 at portion 611 tops, reserve an oil hole 613 on this lid 612, but so that in the quantitative damping liquid 62 injecting tube portions 611, and central authorities are provided with a circular hole 614, these piston 63 end faces convex with a mast 64, these mast 64 tops can pass from the circular hole 614 of lid 612 central authorities, and can a screw section 641 be arranged in conjunction 41 " screw 411 of bottom " in, and on piston 63, be provided with several check valves 65 and number return port 66 again, this check valve 65 comprises a guide hole 651 and a pearl body 652, these guide hole 651 tops are provided with the guide portion 653 of taper hole shape, when holding stage body 40 " bear shaking force; and shaking force is via cover tube 20 " when being passed to this damping device 60, the damping that utilizes piston 63 and damping liquid 62 to be produced, cushioning effect can reach and absorb the shake energy, the purpose that suppresses amplitude of vibration.

Claims

1. an outer bell-type air cushion wall shake device is to be covered with a cover tube in a base top, and a cover tube outside is equiped with a protecting cover, and a cover tube end face is equiped with one and holds stage body; It is characterized in that:

This base is to make planar with metal material, and nearly peripheral region is provided with several holes;

This covers tube, it is the hollow tube-shape of making and be unidirectional opening with the rubber material, be to be provided with one integratedly at an abutment wall top to take over a business, and both taken over a business the bottom surface in abutment wall inside and be provided with a downward opening appearance air chamber, this abutment wall is provided with a charging air inlet, and radially extend a flange towards the outside at the abutment wall root edge, this flange bottom surface can be smooth in base top surface and be positioned at the hole inboard, this abutment wall with take over a business joining place and flange inside respectively be embedded with roll with steel wire be link spring shape one on reinforcement ring and reinforcement ring once, reinforcement ring and descend the nylon curtain yarn that is arranged with between the reinforcement ring more than two layers this on;

This protecting cover, be to make hollow tube-shape and be located at this cover tube outside with metal material, its inside is provided with the open-work that two ends are sky, this protecting cover bottom is provided with a pressure ring that radially extends, and encircle the flange end face of side pressure built in the cover tube in this pressure ring, and outer rim side is provided with several screws, screw passes the hole of base and is locked in the screw, flange, and is made and holds air chamber and be airtight space between base and pressure ring by urgent cramping, and being provided with a perforation on protecting cover can protrude out for the charging air inlet outboard end;

This holds stage body, is to make planar with metal material, and the bottom utilizes a conjunction to be cemented in this cover tube end face central authorities, and end face central authorities are provided with a screw, can be for bearing material locking location.

2. outer bell-type air cushion shock absorber as claimed in claim 1 is characterized in that:

The flange end face and the abutment wall joining place of this cover tube are provided with an annular groove that inwardly concaves, and the pressure ring interior ring edge of this protecting cover also convexes with a bulge loop relatively, and this bulge loop just can be nested in this annular groove inside.

3. outer bell-type air cushion shock absorber as claimed in claim 1 is characterized in that:

This base top surface had both covered an inside and had been installed with a damping device, this damping device is to be equiped with a damping liquid and a piston in an enclosure interior, this piston-top surface is provided with a mast that can pass from case top, this mast top is attached at taking over a business on the bottom surface of this cover tube, and is provided with several check valves and number return port on piston.