CN208900605U - Double medium dampers - Google Patents

Abstract

The utility model discloses a kind of double medium dampers, belong to absorber technical field；The main points of its technical scheme are that including hanging ring, connecting rod, oil drum and pedestal；Pedestal is additionally provided with cylinder barrel, and isolation channel is provided on the cooperation circumferential surface of the barrel of floating piston and cylinder barrel in cylinder barrel, and isolation channel axial sides are provided with seal groove, are equipped with sealing rubber ring in seal groove；Existing double medium dampers are solved since ring-shaped rubber band due to the friction with cylinder barrel be easy to cause abrasion, cause the isolation effect of floating piston bad, hydraulic oil is easy to leak into the problems in air-pressure chamber by hydraulic pressure chamber；Floating piston can be made to play better oil gas isolation effect, prevent the oil of two sides, gas from being permeated.

Description

Double medium dampers

Technical field

The utility model relates to absorber technical field, in particular to a kind of double medium dampers.

Background technique

Damper is a kind of common locomotive spare and accessory parts.The demand of damper be since spring cannot settle out at once, That is spring is compressed decontrol again after, it, which can be continued for some time, stretches but also contracts not only, so wheel can be absorbed in damper Vibration caused by concave-convex road surface is encountered, ride comfort is made.Existing damper generally comprises the cylinder pressure being fixed on car body, should Cylinder pressure inner containment has the damping oil of high viscosity and is equipped with a piston, and one end of the cylinder pressure wears a connecting rod, and the one of the connecting rod End is fixed in the wheel frame of wheel, and the other end and the piston in the cylinder pressure are affixed, and the outer cover of the connecting rod is equipped with spring.Work as brake When, car body can drive the piston to compress the damping oil inside cylinder pressure via the connecting rod, buffer function is obtained with this, but it is traditional Damper be not adjustable the soft or hard of damping, to adapt to soft, vigour the adjustment of different road conditions.

Authorization Notice No. is that the Chinese utility model patent of CN206770493U discloses a kind of novel locomotive shock absorber, is wrapped Oil drum is included, one end of oil drum is provided with pedestal, and the other end of oil drum is inwardly equipped with connecting rod, and connecting rod is located in oil drum Side be provided with first piston, the first spring is provided between connecting rod and oil drum, oil drum circumferential outer surface is arranged with set Cylinder, sleeve can be moved along the axial direction of oil drum, and the other end of connecting rod is fixedly connected with sleeve by seal closure, and feature exists In: it is located on the inside of first piston on connecting rod and is provided with second piston, the second bullet is provided between first piston and second piston Spring is provided with a cylinder barrel on pedestal, is provided with floating piston in cylinder barrel, and it is gentle that cylinder barrel is divided into hydraulic pressure chamber by floating piston Pressure chamber is provided with circulation road, is located in the middle part of circulation road on pedestal and is provided with for adjusting liquid between hydraulic pressure chamber and oil drum The regulating device of flow velocity.

A kind of above-mentioned novel locomotive shock absorber in cylinder barrel by being arranged floating piston, by floating piston in cylinder The gas in air-pressure chamber is compressed in sliding in cylinder, to further function as shock absorbing effect.Existing floating piston Slider body is generally comprised, is provided with mounting groove on sliding block circumferential surface, ring-shaped rubber band is installed in mounting groove, passes through cyclic annular rubber The cooperation of adhesive tape and cylinder barrel keeps the airtight of air-pressure chamber.But in the long-term use process of floating piston, cyclic annular rubber Adhesive tape be easy to cause abrasion due to the friction with cylinder barrel, causes the isolation effect of floating piston bad, and hydraulic oil is easy It is leaked into air-pressure chamber by hydraulic pressure chamber, to influence its damping effect.

Utility model content

In view of the deficienciess of the prior art, the purpose of this utility model is that double medium dampers, can make to float and live Plug plays better oil gas isolation effect, prevents the oil of two sides, gas from being permeated.

The above-mentioned technical purpose of the utility model has the technical scheme that a kind of double medium vibration dampings Device, including hanging ring, connecting rod, oil drum and pedestal；Piston chamber is provided in the oil drum, storage has buffering in the piston chamber The hydraulic oil of damping；One end of the connecting rod is fixedly connected with hanging ring, and the other end of the connecting rod is provided with piston, the company One end that bar is provided with piston is plugged in piston chamber；The pedestal is sealedly and fixedly connected with oil drum, and the pedestal is provided with Room, the room are connected with piston chamber；The pedestal is additionally provided with cylinder barrel, and the cylinder barrel is internally provided with buffering Room, the pedestal are additionally provided with the runner of connection room and surge chamber；It is provided in the surge chamber along cylinder barrel axis direction Surge chamber is isolated into close to the hydraulic pressure chamber of room side and remote by the floating piston being slidably connected with surge chamber, the floating piston Air-pressure chamber from room side, filling has inert gas in the air-pressure chamber, and the floating piston includes slider body, the cunning It is provided with isolation channel on the cooperation circumferential surface of the barrel of block main body and cylinder barrel, isolation channel axial sides are provided with seal groove, sealing Sealing rubber ring is installed in slot.

Through the above technical solutions, piston moves in piston chamber to pedestal direction under the vibration along connecting rod direction, by To the resistance of hydraulic oil, to play the role of bumper and absorbing shock；In the case where shaking biggish situation, hydraulic oil in piston chamber by with Room connection runner enter in hydraulic pressure chamber, push floating piston air in air-pressure chamber is compressed, so as to by The vibration that connecting rod transmits carries out bumper and absorbing shock；It is provided with isolation channel on the cooperation circumferential surface of the barrel of slider body and cylinder barrel, every Slot axial sides are provided with seal groove, sealing rubber ring is installed in seal groove；By the setting of isolation channel, thus to hydraulic pressure chamber In hydraulic oil carry out gas barrier, reduce hydraulic pressure chamber in hydraulic oil to air-pressure chamber permeate；When a small amount of hydraulic oil enters In isolation channel, hydraulic oil and barrel are at oil film in isolation channel, so that the two sides of floating piston are isolated.

Preferably, the slider body includes sliding part and closure, the junction of the pedestal and oil drum is provided with The enclosed slot that cross sectional shape mutually agrees with closure cross sectional shape.

Through the above technical solutions, by the cooperation of closure and enclosed slot, double medium dampers be not shaken In the case of, in air-pressure chamber under the air pressure of inert gas, sealing is plugged into enclosed slot, thus entering runner and surge chamber Mouth is closed.

Preferably, gas nozzle cap is arranged in the end of the cylinder barrel, venthole, the venthole are provided on the gas nozzle cap In be provided with sealing screw；The sealing screw is engaged with venthole screw thread.

Through the above technical solutions, opening sealing screw, inert gas is poured into air-pressure chamber, by adjusting in air-pressure chamber The concentration of inert gas, and then the buffer damping of double medium dampers can be adjusted.

Preferably, being equipped with dust-proof sieve in the venthole.

Through the above technical solutions, be equipped with dust-proof sieve in venthole, by the setting of dust-proof sieve, thus reduce to When being passed through inert gas in air-pressure chamber, external dust enters air-pressure chamber by venthole.Preferably, the pedestal and oil drum it Between using be threadedly coupled.

Through the above technical solutions, dismantled pedestal and oil drum using being threadedly coupled between pedestal and oil drum, It is convenient that hydraulic oil in surge chamber is replaced.

Preferably, dust-proof end cap is arranged in the connection end of the oil drum and connecting rod, it is provided on the inside of dust-proof end cap close Blocking.

Through the above technical solutions, by the way that sealing-plug is arranged in the connection end of oil drum and connecting rod, it will be in oil drum Hydraulic oil is closed, and prevents hydraulic oil from leaking from the junction of connecting rod and oil drum；Sealing-plug is carried out by dust-proof end cap Protection prevents it to be infected with dust and by external impact.

Preferably, being provided with sealing dashpot on the inner side end of the sealing-plug, it is equipped in the sealing dashpot Elastic washer is fixed with limited block on the connecting rod.

Through the above technical solutions, being provided with sealing dashpot on the inner side end of sealing-plug, seals and installed in dashpot Flexible washer is fixed with limited block on the connecting rod；Double medium dampers carry out damping work when, by elastic washer with The Elastic Contact of limited block, to play shock absorbing effect.

Preferably, be provided with pressure regulating hole on the end face of the dust-proof end cap, be equipped in the pressure regulating hole with The adjusting screw of pressure regulating hole screw thread engagement, the end for adjusting screw are abutted with the end face of sealing-plug.

Through the above technical solutions, passing through the interior adjusting screw of turn pressure regulating hole, and then to the axial direction of sealing-plug Position carries out, so that the volume for accommodating hydraulic oil to piston chamber is adjusted, so that the damping changed to double medium dampers is imitated Fruit is finely adjusted.

In conclusion the utility model has the following beneficial effects:

1. piston moves in piston chamber to pedestal direction under the vibration along connecting rod direction, by the resistance of hydraulic oil, To play the role of bumper and absorbing shock；In the case where shaking biggish situation, hydraulic oil in piston chamber is by the runner that is connected to room It enters in hydraulic pressure chamber, pushes floating piston to compress air in air-pressure chamber, so as to the vibration to being transmitted by connecting rod Carry out bumper and absorbing shock；It is provided with isolation channel on the cooperation circumferential surface of the barrel of slider body and cylinder barrel, isolation channel axial sides are set It is equipped with seal groove, sealing rubber ring is installed in seal groove；By the setting of isolation channel, to be carried out to the hydraulic oil in hydraulic pressure chamber Gas barrier, the hydraulic oil reduced in hydraulic pressure chamber are permeated to air-pressure chamber；When a small amount of hydraulic oil enters in isolation channel, isolation channel Middle hydraulic oil and barrel are at oil film, so that the two sides of floating piston are isolated；

2. gas nozzle cap is arranged in the end of cylinder barrel, it is provided with venthole on the gas nozzle cap, is provided in the venthole Sealing screw；To pour inert gas into air-pressure chamber, inert gas in air-pressure chamber can be adjusted by opening sealing screw Concentration, and then the buffer damping of double medium dampers can be adjusted；

3. passing through the interior adjusting screw of turn pressure regulating hole, and then the axial position of sealing-plug is carried out, thus right The volume that piston chamber accommodates hydraulic oil is adjusted, and is finely adjusted to change to the damping effect of double medium dampers.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of damper of motorcycle；

Fig. 2 is the structural schematic diagram of cylinder barrel；

Fig. 3 is the structural schematic diagram of floating piston；

Fig. 4 is the connection schematic diagram of piston and hydraulic cylinder；

Fig. 5 is the structural schematic diagram of resilient snubber；

Fig. 6 is the structural schematic diagram of hanging ring.

Appended drawing reference: 1, hanging ring；11, adjustment hole；12, core is adjusted；121, the conical surface；13, bumper post；2, connecting rod；21, it buffers Deep hole；22, intercommunicating pore；23, piston；231, first piston；232, second piston；2321, relief hole；2322, relief hole is compressed； 2323, backhaul relief hole；24, pin shaft is sealed；25, air cavity；26, main body bar；261, positioning step；27, mounting rod；271, grafting Column；28, limited block；3, oil drum；31, piston chamber；32, sealing-plug；321, dashpot is sealed；322, elastic washer；33, dust-proof End cap；331, pressure regulating hole；332, screw is adjusted；4, pedestal；41, room；42, runner；43, enclosed slot；5, cylinder barrel； 51, surge chamber；511, air-pressure chamber；512, hydraulic pressure chamber；52, floating piston；521, slider body；5211, sliding part；5212, it seals Closing part；5213, isolation channel；5214, seal groove；522, sealing rubber ring；53, gas nozzle cap；531, venthole；532, sealing screw； 533, dust-proof sieve；6, resilient snubber；61, bumper post；62, inlet opening；63, buffer board；64, buffer spring.

Specific embodiment

A kind of damper of motorcycle, referring to Figures 1 and 2, including hanging ring 1, connecting rod 2, oil drum 3 and pedestal 4.Oil drum 3 It is inside provided with piston chamber 31, storage has the hydraulic oil of bumper and absorbing shock in piston chamber 31.One end of connecting rod 2 and the fixed company of hanging ring 1 It connects, the other end of connecting rod 2 is provided with piston 23, and one end that connecting rod 2 is provided with piston 23 is plugged in piston chamber 31, passes through connecting rod 2 sliding in piston chamber 31 compresses the hydraulic oil in piston chamber 31, and then plays buffering and damping effect.Pedestal 4 with Oil drum 3 is sealedly and fixedly connected, and pedestal 4 is provided with room 41, and room 41 is connected with piston chamber 31.Pedestal 4 is additionally provided with gas Cylinder barrel 5, cylinder barrel 5 are internally provided with surge chamber 51, and pedestal 4 is additionally provided with the runner 42 of connection room 41 and surge chamber 51.It is slow The floating piston 52 for being provided in room 51 and being slidably connected along 5 axis direction of cylinder barrel and surge chamber 51 is rushed, floating piston 52 will delay It rushes room 51 and is isolated into the hydraulic pressure chamber 512 close to 41 side of room and the air-pressure chamber 511 far from 41 side of room, in air-pressure chamber 511 Filling has inert gas.

Referring to Figures 1 and 2, for oil drum 3 with pedestal 4 using being threadedly coupled, slider body includes sliding part 5211 and closing The junction of portion 5212, pedestal 4 and oil drum 3 is provided with the enclosed slot that cross sectional shape and 5212 cross sectional shape of closure mutually agree with 43.Damper of motorcycle is not in the case where being shaken, in air-pressure chamber 511 under the air pressure of inert gas, closure 5212 It is plugged into enclosed slot 43, so that runner 42 and the entrance of surge chamber 51 be closed.

Referring to Figures 1 and 2, gas nozzle cap 53 is arranged in the end of cylinder barrel 5, is provided with venthole 531 on gas nozzle cap 53, ventilates Sealing screw 532 is provided in hole 531；Sealing screw 532 is engaged with 531 screw thread of venthole, will be ventilated by sealing screw 532 It is closed with the external world in hole 531.Dust-proof sieve 533 is also equipped in venthole 531.Sealing screw 532 is opened, it can be to air pressure Inert gas is poured in room 511, by adjusting the concentration of inert gas in air-pressure chamber 511, and then motorcycle vibration damping can be adjusted The buffer damping of device.Dust-proof sieve 533 is set in venthole 531, is passed through inert gas into air-pressure chamber 511 to reduce When, external dust enters air-pressure chamber 511 by venthole 531.

Referring to Fig. 2 and Fig. 3, floating piston 52 includes slider body 521, and slider body 521 is matched with the barrel of cylinder barrel 5 It closes and is provided with isolation channel 5213 on circumferential surface, 5213 axial sides of isolation channel are provided with seal groove 5214, install in seal groove 5214 There is sealing rubber ring 522.By the setting of isolation channel 5213, to carry out gas barrier to the hydraulic oil in hydraulic pressure chamber 512, reduce Hydraulic oil in hydraulic pressure chamber 512 is permeated to air-pressure chamber 511；When a small amount of hydraulic oil enters in isolation channel 5213, isolation channel Hydraulic oil and barrel are at oil film in 5213, so that the two sides of floating piston 52 are isolated.

Referring to Fig.1 and Fig. 4, piston 23 include first piston 231 and second piston 232, first piston 231 and second piston 232 are respectively intended to compress the hydraulic oil in piston chamber 31 and room 41.Connecting rod 2 includes main body bar 26 and mounting rod 27, It is provided with inserting column 271, the main body bar 26 and mounting rod 27 on mounting rod 27 using being threadedly coupled, is set on the main body bar 26 It is equipped with the positioning step 261 for carrying out axially position to first piston 231, first piston 231 and 26 grafting of main body bar and passes through peace The dress abutting of bar 27 is fixed on mounting rod 27.Second piston 232 and 271 grafting of inserting column, by being threadedly engaged with inserting column 271 Screw so that second piston 232 and connecting rod 2 are attached fixation.

Referring to Fig. 4, relief hole 2321 is provided on the end face of the close room 41 of second piston 232.Relief hole 2321 wraps Compression relief hole 2322 and backhaul relief hole 2323 are included, relief hole 2322 is compressed and the axial of backhaul relief hole 2323 is mutually handed over Fork, the axis direction for compressing relief hole 2322 are tilted upward by the side of the laterally closer room 41 far from room 41；Backhaul The axis direction of relief hole 2323 by far from room 41 a laterally closer room 41 side diagonally downward.Pass through relief hole 2321 setting can reduce in buffering course, and hydraulic oil shakes the rigidity between connecting rod 2.

Referring to Fig. 4, dust-proof end cap 33 is arranged in the connection end of oil drum 3 and connecting rod 2, and the inside of dust-proof end cap 33 is provided with Sealing-plug 32.It is provided with sealing dashpot 321 on the inner side end of sealing-plug 32, seals in dashpot 321 and elastic cushion is installed 322 are enclosed, is fixed with limited block 28 on connecting rod 2.When damper of motorcycle carries out damping work, pass through elastic washer 322 and limit The Elastic Contact of position block 28, to play shock absorbing effect.

Referring to Fig.1 and Fig. 4, the buffering deep hole 21 of connecting rod 2 being internally provided with along its axis direction is also set up on connecting rod 2 There is the intercommunicating pore 22 of connection buffering deep hole 21 and piston chamber 31.Hydraulic oil energy by the setting of intercommunicating pore 22, in piston chamber 31 It is enough to be entered in buffering deep hole 21 by piston chamber 31.Sealing pin shaft 24 is installed, sealing pin shaft 24 will buffer in buffering deep hole 21 Deep hole 21 is isolated into air cavity 25 far from the side of piston chamber 31.Buffering is pushed by the hydraulic oil that intercommunicating pore 22 enters buffering deep hole 21 The side sold axially away from piston chamber 31 moves, to compress to the gas in air cavity 25, and then plays buffer function.

Referring to Fig. 4 and Fig. 5, it is provided in buffering deep hole 21 and what the hydraulic oil inside deep hole 21 was buffered is buffered to entrance Resilient snubber 6.Resilient snubber 6 includes elastic 61, and elastic 61 and buffering deep hole 21 are fixedly mounted, and elastic 61 is arranged Have axial identical as buffering 21 axial direction of deep hole and is equipped in the inlet opening 62 being connected with buffering deep hole 21, inlet opening 62 The buffer board 63 being slidably connected along 62 axis direction of inlet opening and inlet opening 62 is fixed with buffer spring 64 on buffer board 63, delays The other end for rushing spring 64 is fixedly connected with elastic 61.

Referring to Fig. 6, buffers in deep hole 21 and be plugged with bumper post 13, bumper post 13 is close close to one end of hanging ring 1 by slow deep hole Envelope.Hanging ring 1 is provided with the regulating mechanism that 13 axial position of bumper post is adjusted.Regulating mechanism includes adjustment hole 11 and adjusts Core 12.Adjustment hole 11 is arranged on hanging ring, is axially perpendicular to buffering deep hole 21, and adjustment hole 11 is connected with buffering deep hole 21. The lower part of adjustment hole 11 is provided with internal screw thread, and the bottom for adjusting core 12 is provided with external screw thread, and external screw thread is meshed with internal screw thread.It adjusts It is provided with the inclination conical surface 121 directed downwardly on section core 12, buffers in deep hole 21 and is plugged with bumper post 13, bumper post 13 will be close to buffer Deep hole 21 is sealed close to one end of hanging ring 1, and the end of bumper post 13 is abutted against with the conical surface 121 for adjusting core 12.Pass through rotation Core 12 is adjusted, depth of the core 12 in adjustment hole 11 is then adjusted, thus adjusted by the conical surface 121 adjusted on core 12, To which the maximum volume of air cavity 25 be adjusted, and then adjust the size of buffer damping.

Concrete operations mode is as follows:

When vibration of the damper of motorcycle by 2 axis direction of connecting rod, connecting rod 2 is inside its axis direction piston chamber 31 It is moved, the hydraulic oil in piston chamber 31 is compressed；Hydraulic oil under the effect of the pressure, is entered by intercommunicating pore 22 and is buffered Pin shaft 24 is sealed in deep hole 21 to be pushed, and then the gas in air cavity 25 is compressed, to play shock absorbing effect. First piston 231 is slided in piston chamber 31, is buffered by the oil pressure damping of piston chamber 31.When shaking larger, the Two pistons 232 are plugged into room 41, and second piston 232 compresses the hydraulic oil in room 41, to play preferably Buffering effect.Compressed hydraulic oil is entered in surge chamber 51 by runner 42, pushes floating piston 52 sliding in surge chamber 51 It is dynamic, to be compressed to the gas in air-pressure chamber 511, to further reach more preferably buffering and damping effect.

This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but As long as all by the protection of Patent Law in the scope of the claims of the utility model.

Claims (8)

1. a kind of double medium dampers, including hanging ring (1), connecting rod (2), oil drum (3) and pedestal (4)；In the oil drum (3) It is provided with piston chamber (31), storage has the hydraulic oil of bumper and absorbing shock in the piston chamber (31)；One end of the connecting rod (2) with Hanging ring (1) is fixedly connected, and the other end of the connecting rod (2) is provided with piston (23), and the connecting rod (2) is provided with piston (23) One end is plugged in piston chamber (31)；The pedestal (4) is sealedly and fixedly connected with oil drum (3), and the pedestal (4) is provided with appearance Room (41), the room (41) are connected with piston chamber (31)；The pedestal (4) is additionally provided with cylinder barrel (5), the cylinder barrel (5) it is internally provided with surge chamber (51), the pedestal (4) is additionally provided with the runner of connection room (41) and surge chamber (51) (42)；The floating piston being slidably connected along cylinder barrel (5) axis direction and surge chamber (51) is provided in the surge chamber (51) (52), surge chamber (51) is isolated into close to the hydraulic pressure chamber (512) of room (41) side and far from appearance by the floating piston (52) The air-pressure chamber (511) of room (41) side, the middle filling of the air-pressure chamber (511) have inert gas, it is characterised in that: the floating is lived Filling in (52) includes slider body (521), is provided on the slider body (521) and the cooperation circumferential surface of the barrel of cylinder barrel (5) Isolation channel (5213), isolation channel (5213) axial sides are provided with seal groove (5214), and seal groove is equipped with sealing in (5214) Cushion rubber (522).

2. double medium dampers according to claim 1, it is characterised in that: the slider body includes sliding part (5211) With closure (5212), the junction of the pedestal (4) and oil drum (3) is provided with cross sectional shape and closure (5212) section The enclosed slot (43) that shape is mutually agreed with.

3. double medium dampers according to claim 1, it is characterised in that: gas nozzle is arranged in the end of the cylinder barrel (5) It covers (53), is provided with venthole (531) on the gas nozzle cap, is provided with sealing screw (532) in the venthole (531)；Institute Sealing screw (532) is stated to engage with venthole (531) screw thread.

4. double medium dampers according to claim 3, it is characterised in that: be equipped in the venthole (531) dust-proof Sieve (533).

5. double medium dampers according to claim 1, it is characterised in that: adopted between the pedestal (4) and oil drum (3) It is threadedly coupled.

6. double medium dampers according to claim 1, it is characterised in that: the connection of the oil drum (3) and connecting rod (2) Dust-proof end cap (33) is arranged in end, is provided with sealing-plug (32) on the inside of dust-proof end cap (33).

7. double medium dampers according to claim 6, it is characterised in that: be provided on the inner side end of the sealing-plug It seals dashpot (321), is equipped with elastic washer (322) in the sealing dashpot (321), is fixed on the connecting rod (2) Limited block (28).

8. double medium dampers according to claim 6, it is characterised in that: be arranged on the end face of the dust-proof end cap (33) Have pressure regulating hole (11), the adjusting screw engaged with pressure regulating hole (11) screw thread is installed in the pressure regulating hole (11) (332), the end for adjusting screw (332) is abutted with the end face of sealing-plug (32).