CN207906348U - A kind of combined type multi-cylinder linkage buffer - Google Patents
A kind of combined type multi-cylinder linkage buffer Download PDFInfo
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- CN207906348U CN207906348U CN201721860647.7U CN201721860647U CN207906348U CN 207906348 U CN207906348 U CN 207906348U CN 201721860647 U CN201721860647 U CN 201721860647U CN 207906348 U CN207906348 U CN 207906348U
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- cylinder
- buffer
- piston rod
- valve seat
- basal disc
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Abstract
The utility model is related to a kind of combined type multi-cylinder linkage buffers, including basal disc and valve seat, hydro-pneumatic buffer and multiple hydraulic bjuffers are disposed between basal disc and valve seat, the bottom end of the hydraulic bjuffer is fixedly connected on valve seat, the piston rod of hydraulic bjuffer is hinged with basal disc bottom surface, and the bottom end of the hydro-pneumatic buffer is fixedly connected on valve seat and is connect with hydraulic bjuffer by oil circuit；When basal disc is impacted, multi-stage combination buffering is carried out by hydraulic bjuffer and hydro-pneumatic buffer.The utility model uses multi-cylinder linkage, realizes multi-buffer, buffers efficient, the buffering range with bigger, disclosure satisfy that the job requirement that big load is impacted again.The piston rod of hydraulic bjuffer uses ball-joint formula structure with basal disc bottom surface, not only can guarantee multi-cylinder linkage, but also can guarantee and do not interfered when porous spiral buffer buffers, and basal disc can adapt to the foreign object impact of different angle, realizes effectively buffering.
Description
Technical field
The utility model is related to a kind of combined type multi-cylinder linkage buffers, belong to buffer unit technical field.
Background technology
Hydraulic bjuffer is to play one to acting on object progress buffer deceleration on it until stopping by hydraulic damping
Determine the protective effect of degree.Suitable for the mechanical equipments such as lifting transport, elevator, metallurgy, harbour machinery, rail truck, effect
It is the safety buffer device for preventing hard collision from mechanism being caused to damage during the work time.
The groundwork process of hydraulic bjuffer is as follows：When hydraulic bjuffer is collided pressure, kinetic energy through chock plug and
Acceleration spring is given to piston, it is made to travel forward along impact pressure direction, to the fluid inside compression buffer, buffer quilt
The process of compression is the process done work by piston press fluid.This process consumes a large amount of kinetic energy, plays cushioning effect.
Under the operating mode that big load is impacted again, existing hydraulic bjuffer can not can in the case of certain overload occasions
By effectively realizing buffering, how being rationally arranged and realizing that multi-stage combination buffers, to more efficient reduction impact energy and punching
Damage is hit, the critical component of structure is protected, is to need solve problem in buffer design.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of combined type multi-cylinder linkage buffer.
The technical solution of the utility model is as follows：
It is slow to be disposed with liquid gas between basal disc and valve seat for a kind of combined type multi-cylinder linkage buffer, including basal disc and valve seat
Device and multiple hydraulic bjuffers are rushed, the bottom end of the hydraulic bjuffer is fixedly connected on valve seat, the piston rod of hydraulic bjuffer
Hinged with basal disc bottom surface, the bottom end of the hydro-pneumatic buffer is fixedly connected on valve seat and is connected by oil circuit and hydraulic bjuffer
It connects；When basal disc is impacted, multi-stage combination buffering is carried out by hydraulic bjuffer and hydro-pneumatic buffer.
Preferably, the hydraulic bjuffer includes outer shell, cylinder sleeve, piston and piston rod, the cylinder sleeve be placed in outer shell and
The upper and lower ends of outer shell and cylinder sleeve are encapsulated by end cap, cylinder bottom respectively, and piston is located in cylinder sleeve and connects piston rod, piston rod
Top is pierced by after end cap is located at piston rod top with the ball-joint of basal disc bottom surface, upper cover of piston rod equipped with resetting spring and resetting spring
Between end cap；It is provided with helicla flute and throttle orifice on cylinder sleeve, through-hole is offered on cylinder bottom, throttle orifice is communicated with through-hole.
Preferably, pressure accumulation sponge is provided between cylinder sleeve and outer shell.
Preferably, the bottom end of the piston rod is fastened through piston and by fixing nut.
Preferably, the upper end of the outer shell and cylinder sleeve is connect by flange with end cap.
Preferably, the hydro-pneumatic buffer include ram, piston rod, cylinder body, air bag and floating piston, the piston rod are set
In in cylinder body and piston rod top by encapsulation of raming, the air bag and floating piston are placed in the inner cavity of piston rod, cylinder body it is interior
Bottom surface, which is provided on cylindricality core and cylindricality core, is provided with helicla flute, and cylindricality core is inserted into piston rod bottom end and helicla flute and piston rod
Inner cavity is connected, and the bottom end of cylinder body is further opened with through-hole.
Preferably, the basal disc is convex disks, and the upper top surface of the convex disks is disk, bottom surface is hemisphere
Face.
Preferably, there are three hydraulic bjuffer and a hydro-pneumatic buffer, three liquid for setting between the basal disc and valve seat
Compression buffer is uniformly distributed on the same circumference, and a hydro-pneumatic buffer is located at the center of three hydraulic bjuffers.
Preferably, the valve seat is a square base, and the through-hole of hydraulic bjuffer and the through-hole of hydro-pneumatic buffer pass through valve seat
Internal oil communication is provided with the first safety valve and the second safety valve on the oil circuit inside valve seat.
The beneficial effects of the utility model are：
1. the utility model combined type multi-cylinder linkage buffer uses multi-cylinder linkage, multi-stage combination buffering, buffering effect are realized
Rate is high, disclosure satisfy that the workplace that some big loads are impacted again.
2. the utility model combined type multi-cylinder linkage buffer uses fabricated structure：Porous spiral hydraulic cylinder uses spiral shell
The combining form of spin slot formula+throttle orifice is into row buffering, and hydro-pneumatic buffer is using spiral+air sac type structure；It is reasonable in design,
Function and effect are excellent.
3. ball-joint formula structure is used using the piston rod of hydraulic bjuffer and basal disc bottom surface in the utility model, it can
It is not interfered when ensureing multi-cylinder linkage, and can guarantee porous spiral buffer buffering, basal disc can adapt to different angle
Foreign object impact realizes effectively buffering.
4. the utility model combined type multi-cylinder linkage buffer, compares traditional single hydraulic cylinder buffer, have more
Big buffering range disclosure satisfy that the job requirement that big load is impacted again.
Description of the drawings
Fig. 1 is the sectional view of hydraulic bjuffer in the utility model；
Fig. 2 is the sectional view of hydro-pneumatic buffer in the utility model；
Fig. 3 is the overall structure diagram of the utility model combined type multi-cylinder linkage buffer；
Fig. 4 is the fundamental diagram of the utility model combined type multi-cylinder linkage buffer；
Fig. 5 is piston rod and the hinged schematic diagram of convex disks in the utility model；
Fig. 6 is the working state figure of porous spiral hydraulic bjuffer when starting buffering；
Fig. 7 is state diagram when porous spiral hydraulic bjuffer piston enters throttling bore region；
Fig. 8 is hydro-pneumatic buffer piston portion bitmap；
Wherein：I is hydraulic bjuffer；II is hydro-pneumatic buffer；1, flexural pivot；2, resetting spring；3, piston rod；4, it holds
Lid；5, flange；6, pressure accumulation sponge；7, piston；8, helicla flute；9, cylinder sleeve；10, outer shell；11, cylinder bottom；12, through-hole；13, it throttles
Hole；14, fixing nut；15, it rams；16, piston rod；17, air bag；18, cylinder body；19, floating piston；20, piston；21, cylindricality
Core；22, through-hole；23, basal disc；24, valve seat；25, the first safety valve；26, the second safety valve.
Specific implementation mode
The utility model is described further by way of example and in conjunction with the accompanying drawings, but not limited to this.
Embodiment 1：
As shown in Figures 1 to 8, the present embodiment provides a kind of combined type multi-cylinder linkage buffers, including basal disc 23 and valve seat
24, there are one hydro-pneumatic buffer II and three hydraulic bjuffers I, the bottoms of hydraulic bjuffer for arrangement between basal disc 23 and valve seat 24
End is fixedly connected on valve seat 24, and the piston rod 3 of hydraulic bjuffer is hinged with 23 bottom surface of basal disc, and the bottom end of hydro-pneumatic buffer is fixed
It is connected on valve seat 24 and is connect by oil circuit with hydraulic bjuffer；When basal disc 23 is impacted, by hydraulic bjuffer and
Hydro-pneumatic buffer carries out multi-stage combination buffering.
Wherein, basal disc 23 is a convex disks, and the upper top surface of the convex disks is disk, bottom surface is hemisphere face.
Hydraulic bjuffer includes outer shell 10, cylinder sleeve 9, piston 7 and piston rod 3, and cylinder sleeve 9 is placed in outer shell 10 and outer shell and cylinder
The upper and lower ends of set are encapsulated by end cap 4, cylinder bottom 11 respectively, and there are gaps, piston 7 to be located at cylinder sleeve 9 between cylinder sleeve 9 and outer shell 10
Interior and connect piston rod 3, the bottom end of piston rod 3 is fastened through piston and by fixing nut 14, the top traversing through end of piston rod 3
It is a sphere and is embedded in the groove of convex disks bottom surface with basal disc bottom surface ball-joint 1, the i.e. top of piston rod after lid, to
It realizes ball-joint, is set with resetting spring 2 on piston rod 3 and resetting spring is between sphere and end cap 4；9 top of cylinder sleeve
Helicla flute 8 is provided on inner wall, 9 lower part of cylinder sleeve offers throttle orifice 13, and through-hole 12 is offered on cylinder bottom 11, and throttle orifice 13 passes through
Gap between cylinder sleeve and outer shell is communicated with through-hole 12.The upper end of outer shell 10 and cylinder sleeve 9 is connect by flange 5 with end cap 4, end cap
It is bolted to connection between 4 and flange 5.It is installed by bolt with cylinder bottom 11 and valve seat 24 at 10 bottom of outer shell edge outstanding
Together.
Hydro-pneumatic buffer includes ram 15, piston rod 16, cylinder body 18, air bag 17 and floating piston 19, and piston rod 16 is placed in
By 15 encapsulation of raming, air bag 17 and floating piston 19 are placed in the inner cavity of piston rod, cylinder body 18 in cylinder body 18 and piston rod top
Inner bottom surface be provided on cylindricality core 21 and cylindricality core and be provided with helicla flute, cylindricality core be inserted into 16 bottom end of piston rod and helicla flute with
The inner cavity of piston rod 16 is connected, and the bottom end of cylinder body 18 is further opened with through-hole 22.Ram 15 be located at convex disks underface, two
There is certain working space between person.
Valve seat 24 is a square base, and the through-hole 12 of hydraulic bjuffer cylinder bottom is logical with the through-hole 22 of hydro-pneumatic buffer cylinder body bottom end
The oil communication inside valve seat is crossed, the first safety valve 25 and the second safety valve 26 are provided on the circulating oil path inside valve seat.
In the present embodiment, it is arranged between basal disc 23 and valve seat 24 there are three hydraulic bjuffer and a hydro-pneumatic buffer,
Three hydraulic bjuffers are uniformly distributed on the same circumference (the circumference angle of i.e. two neighboring hydraulic bjuffer is 120 degree), a liquid
Pneumatic buffer is located at center (the i.e. coordinate of the center of circle of same circumference where three hydraulic bjuffers of three hydraulic bjuffers
It sets).
Embodiment 2：
A kind of combined type multi-cylinder linkage buffer, structure is as described in Example 1, the difference is that：In cylinder sleeve 9 and outside
Pressure accumulation sponge 6 is provided between cylinder 10.
Embodiment 3：
A kind of application method of combined type multi-cylinder linkage buffer as described in Example 2, carrying out practically process are as follows：
When basal disc 23 is by foreign object impact, basal disc 23 compresses downwards the piston rod 3 of hydraulic bjuffer, and piston rod 3 is shunk
Make that the fluid in 9 rodless cavity of cylinder sleeve passes through helicla flute 8, throttle orifice 13 respectively enters rod chamber and 24 oil circuit of valve seat, when valve seat 24
When oil liquid pressure in oil circuit is excessive, the first safety valve 25 is opened, and fluid enters in the cylinder body 18 of hydro-pneumatic buffer, and liquid gas is slow
The piston rod 16 for rushing device stretches out upwards；When the piston 7 of hydraulic bjuffer enters 13 region of throttle orifice, fluid has not entered back at this time
Rod cavity, fluid only by throttle orifice 13, through-hole 12, valve seat 24 enter hydro-pneumatic buffer, until hydro-pneumatic buffer ram 15 with
23 bottom surface of basal disc contacts, and the piston rod 16 of hydro-pneumatic buffer moves downward at this time, and fluid enters piston rod by cylindricality core 21
16 inner cavity, during basal disc 23 is constantly declined by foreign object impact, the fluid promotion for continuing into 16 inner cavity of piston rod is floating
Piston 19 rises extruding gasbag 17, until buffering terminates；
When buffering terminates to reset, hydraulic bjuffer resets under the action of resetting spring 2, and hydro-pneumatic buffer is in air bag 17
It is resetted under the action of gas pressure, and fluid is pressed into hydraulic bjuffer.
Claims (9)
1. a kind of combined type multi-cylinder linkage buffer, which is characterized in that including basal disc and valve seat, arranged between basal disc and valve seat
There are hydro-pneumatic buffer and multiple hydraulic bjuffers, the bottom end of the hydraulic bjuffer to be fixedly connected on valve seat, hydraulic bjuffer
Piston rod and basal disc bottom surface it is hinged, the bottom end of the hydro-pneumatic buffer is fixedly connected on valve seat and slow by oil circuit and hydraulic pressure
Rush device connection；When basal disc is impacted, multi-stage combination buffering is carried out by hydraulic bjuffer and hydro-pneumatic buffer.
2. combined type multi-cylinder linkage buffer as described in claim 1, which is characterized in that the hydraulic bjuffer includes outer
Cylinder, cylinder sleeve, piston and piston rod, the cylinder sleeve is placed in outer shell and the upper and lower ends of outer shell and cylinder sleeve are respectively by end cap, cylinder
Bottom package, piston are located in cylinder sleeve and connect piston rod, and the top of piston rod is pierced by after end cap and the ball-joint of basal disc bottom surface, piston
It is set with resetting spring on bar and resetting spring is between piston rod top and end cap；Helicla flute and throttling are provided on cylinder sleeve
Hole offers through-hole on cylinder bottom, and throttle orifice is communicated with through-hole.
3. combined type multi-cylinder linkage buffer as claimed in claim 2, which is characterized in that be provided between cylinder sleeve and outer shell
Pressure accumulation sponge.
4. combined type multi-cylinder linkage buffer as claimed in claim 2, which is characterized in that the bottom end of the piston rod is through work
It fills in and is fastened by fixing nut.
5. combined type multi-cylinder linkage buffer as claimed in claim 2, which is characterized in that the upper end of the outer shell and cylinder sleeve is logical
Flange is crossed to connect with end cap.
6. combined type multi-cylinder linkage buffer as claimed in claim 2, which is characterized in that the hydro-pneumatic buffer includes hitting
Head, piston rod, cylinder body, air bag and floating piston, the piston rod is placed in cylinder body and piston rod top passes through encapsulation of raming, institute
It states air bag and floating piston is placed in the inner cavity of piston rod, the inner bottom surface of cylinder body, which is provided on cylindricality core and cylindricality core, is provided with spiral
Slot, cylindricality core is inserted into piston rod bottom end and helicla flute is connected with the inner cavity of piston rod, and the bottom end of cylinder body is further opened with through-hole.
7. combined type multi-cylinder linkage buffer as described in claim 1, which is characterized in that the basal disc is convex disks, institute
The upper top surface for stating convex disks is disk, bottom surface is hemisphere face.
8. combined type multi-cylinder linkage buffer as described in claim 1, which is characterized in that be arranged between the basal disc and valve seat
There are three hydraulic bjuffer and a hydro-pneumatic buffer, three hydraulic bjuffers are uniformly distributed on the same circumference, a liquid gas buffering
Device is located at the center of three hydraulic bjuffers.
9. combined type multi-cylinder linkage buffer as claimed in claim 6, which is characterized in that the valve seat is a square base, liquid
The through-hole of compression buffer and the through-hole of hydro-pneumatic buffer are provided on the oil circuit inside valve seat by the oil communication inside valve seat
First safety valve and the second safety valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721860647.7U CN207906348U (en) | 2017-12-27 | 2017-12-27 | A kind of combined type multi-cylinder linkage buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721860647.7U CN207906348U (en) | 2017-12-27 | 2017-12-27 | A kind of combined type multi-cylinder linkage buffer |
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| Publication Number | Publication Date |
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| CN207906348U true CN207906348U (en) | 2018-09-25 |
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| CN201721860647.7U Active CN207906348U (en) | 2017-12-27 | 2017-12-27 | A kind of combined type multi-cylinder linkage buffer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956834A (en) * | 2017-12-27 | 2018-04-24 | 山东科技大学 | A kind of combined type multi-cylinder linkage buffer and its application |
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- 2017-12-27 CN CN201721860647.7U patent/CN207906348U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956834A (en) * | 2017-12-27 | 2018-04-24 | 山东科技大学 | A kind of combined type multi-cylinder linkage buffer and its application |
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