Ageing-resistant rubber bushing for automobile chassis
Technical Field
The invention relates to the technical field of automobile parts, in particular to an anti-aging rubber bushing for an automobile chassis.
Background
The rubber bushing is an important component of the automobile chassis and plays a role in connecting various parts of the automobile body and transmitting the shock absorption of the chassis to the automobile body. However, in the use process of the rubber bushing, the rubber bushing is aged under the influence of external factors and self factors, the rubber bushing cannot play a role in shock absorption, the driving comfort is influenced, and the driving safety is seriously influenced.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides an anti-aging rubber bushing for an automobile chassis, which solves the problems that the rubber bushing can age, cannot play a role in shock absorption, influences the driving comfort and seriously influences the driving safety.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: an anti-aging rubber bushing for an automobile chassis comprises an upper rubber pad, wherein a first fixed block is fixedly connected inside the upper rubber pad, a first fixing nut is in threaded connection with the surface of one side of the first fixed block, a first bearing plate is fixedly connected to the side, away from the first fixing nut, of the first fixed block, a damping device is fixedly connected to the side, away from the first fixed block, of the first bearing plate, a second bearing plate is fixedly connected to the side, away from the first bearing plate, of the damping device, a second fixed block is fixedly connected to the side, away from the damping device, of the second bearing plate, a lower rubber pad is fixedly connected to the surface of the second fixed block, a second fixing nut is in threaded connection with the surface of the second fixed block, away from the second bearing plate, a damping spring is fixedly connected to the surface of the damping device between the two opposite sides of the first bearing plate and the second bearing plate, fixedly connected with rubber circle between the relative both sides of first bearing plate and second bearing plate, the inside fixedly connected with nylon wire of rubber circle, the fixed surface of rubber circle is connected with the inoxidizing coating.
Preferably, the rubber ring is made of natural rubber, and the protective layer is made of nitrile rubber.
Preferably, the upper rubber pad and the lower rubber pad are made of isoprene rubber.
Preferably, the first fixing block is located first fixation nut top and is provided with first fixed pin, the second fixing block is located second fixation nut bottom and is provided with the second fixed pin, the through-hole with first fixed pin adaptation is seted up on the surface of first fixed block, the through-hole with second fixed pin adaptation is seted up on the surface of second fixed block.
Preferably, the damping device comprises a bottom plate, a fixed sleeve is fixedly connected to the top of the bottom plate, a piston block and a floating block are sequentially connected to the inner wall of the fixed sleeve in a sliding manner, a first sealing ring is fixedly connected to the side surface of the floating block, a fixed cover is fixedly connected to the top of the fixed sleeve, a connecting rod is fixedly connected to the center of the piston block, a top plate is fixedly connected to the top of the connecting rod, a check valve is fixedly connected to one side of the bottom of the side wall of the fixed sleeve, a screw plug is connected to the side wall of the fixed sleeve and located at the position corresponding to the check valve in a threaded manner, a first mounting hole and a second mounting hole are sequentially formed in the surface of the piston block, a first sliding block is slidably connected to the inner wall of the first mounting hole, a first sealing rod is fixedly connected to the top of the first sliding block, a first spring, the utility model discloses a fixed cover, including first mounting hole inner wall, second mounting hole, first slider, second slider, fixed cover, connecting rod, first slider, second slider, fixed cover, connecting rod.
Preferably, a gas cavity is formed between the floating block and the bottom of the inner wall of the fixed sleeve, nitrogen is filled in the gas cavity, a lower oil cavity is formed between the piston block and the top of the floating block, an upper oil cavity is formed between the piston block and the fixed cover, and hydraulic oil is filled in the lower oil cavity and the upper oil cavity.
Preferably, one end of the first sealing rod and one end of the second sealing rod are set to be conical bodies, the surface of the piston block is provided with conical holes matched with the first sealing rod and the second sealing rod, and the surfaces of the first sliding block and the second sliding block are provided with through holes.
Preferably, the flow direction of the one-way valve is the radial inward direction of the fixing sleeve.
Preferably, the first fixing block and the second fixing block are made of metal, and the first bearing plate and the second bearing plate are made of metal.
Preferably, the upper rubber pad, the lower rubber pad and the protective layer are of circular structures.
(III) advantageous effects
The invention provides an anti-aging rubber bushing for an automobile chassis. The method has the following beneficial effects:
(1) this kind of rubber bush for vehicle chassis resistant to aging, through last cushion, go up the first fixed block of inside fixedly connected with of cushion, a side surface threaded connection of first fixed block has first fixation nut, the first bearing plate of one side fixedly connected with of first fixation nut is kept away from to first fixed block, one side fixedly connected with damping device of first fixed block is kept away from to first bearing plate, one side fixedly connected with second bearing plate that damping device kept away from first bearing plate, one side fixedly connected with second fixed block that damping device was kept away from to the second bearing plate, the cushion under the fixed surface of second fixed block is connected with adds damping spring and damping device and suppresses vibrations in rubber bush, has avoided relying on rubber to reduce the vibrations volume completely to rubber bush's life has been prolonged.
(2) This kind of ageing-resistant rubber bush for vehicle chassis, through fixedly connected with rubber circle between the relative both sides of first bearing plate and second bearing plate, the inside fixedly connected with nylon net of rubber circle, the fixed surface of rubber circle is connected with the inoxidizing coating, adds the tensile resistance that the nylon net had guaranteed rubber in the rubber circle, and the surface is provided with the inoxidizing coating simultaneously, and oil resistance is fabulous, and the wearability is higher, and the heat resistance is better, effectually plays the protection to the rubber circle under the condition that does not influence the normal work of rubber circle.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of the overall construction of the present invention;
FIG. 3 is a schematic view of the overall structure of the shock absorbing device of the present invention;
FIG. 4 is a cross-sectional view of the shock absorbing device of the present invention;
FIG. 5 is an enlarged view taken at A of FIG. 4 in accordance with the present invention;
FIG. 6 is an enlarged view of the invention at B in FIG. 4.
In the figure: 1-upper rubber cushion, 2-first fixed block, 3-first fixed nut, 4-first bearing plate, 5-damping device, 51-bottom plate, 52-fixed sleeve, 53-piston block, 54-floating block, 55-first sealing ring, 56-fixed cover, 57-connecting rod, 58-top plate, 59-one-way valve, 510-screw plug, 511-first mounting hole, 512-second mounting hole, 513-first sliding block, 514-first sealing rod, 515-first spring, 516-second sliding block, 517-second sealing rod, 518-second spring, 519-second sealing ring, 520-dust-proof sleeve, 6-second bearing plate, 7-second fixed block, 8-lower rubber cushion, 9-second fixed nut, 10-a damping spring, 11-a rubber ring, 12-a nylon net, 13-a protective layer, 14-a first fixing pin and 15-a second fixing pin.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Referring to fig. 1-6, the present invention provides a technical solution: an anti-aging rubber bushing for an automobile chassis comprises an upper rubber pad 1, a first fixing block 2 is fixedly connected inside the upper rubber pad 1, a first fixing nut 3 is in threaded connection with the surface of one side of the first fixing block 2, a first bearing plate 4 is fixedly connected with one side of the first fixing block 2, which is far away from the first fixing nut 3, a damping device 5 is fixedly connected with one side of the first bearing plate 4, which is far away from the first fixing block 2, a second bearing plate 6 is fixedly connected with one side of the damping device 5, a second fixing block 7 is fixedly connected with one side of the second bearing plate 6, which is far away from the damping device 5, a lower rubber pad 8 is fixedly connected with the surface of the second fixing block 7, a second fixing nut 9 is in threaded connection with the surface of one side of the second fixing block 7, which is far away from the second bearing plate 6, and a damping spring 10 is fixedly connected between the two opposite sides of the first bearing plate 4 and the second bearing plate 6 and, the damping spring 10 and the damping device 5 are used to share a part of the damping of the rubber, thereby improving the durability. Fixedly connected with rubber circle 11 between the relative both sides of first bearing plate 4 and second bearing plate 6, the inside fixedly connected with nylon wire 12 of rubber circle 11, the fixed surface of rubber circle 11 is connected with the inoxidizing coating 13.
The rubber ring 11 is made of natural rubber, and the protective layer 13 is made of nitrile rubber.
The upper rubber cushion 1 and the lower rubber cushion 8 are made of isoprene rubber, vibration is further reduced by the upper rubber cushion 1 and the lower rubber cushion 8, and abnormal sound is prevented from being generated among the rubber bushing, the chassis and the frame.
The first fixing block 2 is located the first fixing nut 3 top and is provided with first fixed pin 14, the second fixing block 7 is located the second fixing nut 9 bottom and is provided with second fixed pin 15, the through-hole with the first fixed pin 14 adaptation is seted up on the surface of first fixing block 2, the through-hole with the 15 adaptations of second fixed pin is seted up on the surface of second fixing block 7, has avoided fixing nut to drop.
The damping device 5 comprises a bottom plate 51, a fixed sleeve 52 is fixedly connected to the top of the bottom plate 51, a piston block 53 and a floating block 54 are sequentially and slidably connected to the inner wall of the fixed sleeve 52, a first sealing ring 55 is fixedly connected to the side surface of the floating block 54, a fixed cover 56 is fixedly connected to the top of the fixed sleeve 52, a connecting rod 57 is fixedly connected to the center of the piston block 53, a top plate 58 is fixedly connected to the top of the connecting rod 57, a one-way valve 59 is fixedly connected to one side of the bottom of the side wall of the fixed sleeve 52, a screw plug 510 is threadedly connected to the side wall of the fixed sleeve 52 at a position corresponding to the one-way valve 59, a first mounting hole 511 and a second mounting hole 512 are sequentially formed in the surface of the piston block 53, a first sliding block 513 is slidably connected to the inner wall of the first mounting hole 511, a first sealing rod 514 is fixedly connected to the top of the first sliding, second mounting hole 512 inner wall sliding connection has second slider 516, the bottom of second slider 516 is connected with second sealing rod 517, the fixed surface that just is located second sealing rod 517 between second mounting hole 512 inner wall and the second slider 516 is connected with second spring 518, the inside fixedly connected with second sealing washer 519 of fixed cover 56, the fixed surface that just is located connecting rod 57 at the top of fixed cover 56 is connected with dirt proof boot 520, utilize damping device 5 to restrain and beat and reduce vibrations, the travelling comfort has been guaranteed.
A gas cavity is formed between the floating block 54 and the bottom of the inner wall of the fixed sleeve 52, nitrogen is filled in the gas cavity, a lower oil cavity is formed between the piston block 53 and the top of the floating block 54, an upper oil cavity is formed between the piston block 53 and the fixed cover 56, and hydraulic oil is filled in the lower oil cavity and the upper oil cavity.
One end of the first sealing rod 514 and one end of the second sealing rod 517 are set to be a cone, the surface of the piston block 53 is provided with a taper hole matched with the first sealing rod 514 and the second sealing rod 517, and the surfaces of the first sliding block 513 and the second sliding block 516 are provided with through holes.
The flow direction of the check valve 59 is radially inward of the retainer sleeve 52.
The first fixing block 2 and the second fixing block 7 are made of metal, and the first bearing plate 4 and the second bearing plate 6 are made of metal.
The upper rubber mat 1, the lower rubber mat 8 and the protective layer 13 are of a circular structure.
During operation, install rubber bush between chassis and frame to fixed through first fixation nut 3 and second fixation nut 9, and insert first fixed pin 14 and second fixed pin 15, when the vehicle traveles and produces vibrations, transmit to second bearing plate 6 through lower cushion 8, damping device 5, damping spring 10, the shrink of rubber circle 11 play the cushioning effect this moment. When the damping device 5 contracts, the piston block 53 moves downwards, hydraulic oil in the lower oil cavity generates pressure on the first sliding block 513, so that the first sliding block 513 moves, the first spring 515 contracts, the top of the first sealing rod 514 is separated from the top of the piston block 53, the hydraulic oil enters the upper oil cavity from a through hole on the surface of the first sliding block 513, the floating block 54 moves downwards under the pressure of the lower oil cavity, nitrogen is compressed, the pressure in the lower oil cavity decreases, the pressure of the upper oil cavity increases, hydraulic oil in the upper oil cavity generates pressure on the second sliding block 516, so that the second sliding block 516 moves, the second spring 518 contracts, the top of the second sealing rod 517 is separated from the bottom of the piston block 53, the hydraulic oil enters the lower oil cavity from a through hole on the surface of the second sliding block 516, and the nitrogen can generate a reaction force on the floating block 54 at the moment to force the floating block 54 to restore the position.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.
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.