CN113606221B - Damping type oil cylinder for driver's cab of medium and heavy truck - Google Patents
Damping type oil cylinder for driver's cab of medium and heavy truck Download PDFInfo
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- CN113606221B CN113606221B CN202110933123.0A CN202110933123A CN113606221B CN 113606221 B CN113606221 B CN 113606221B CN 202110933123 A CN202110933123 A CN 202110933123A CN 113606221 B CN113606221 B CN 113606221B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
- F15B15/226—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke having elastic elements, e.g. springs, rubber pads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D33/00—Superstructures for load-carrying vehicles
- B62D33/06—Drivers' cabs
- B62D33/0604—Cabs insulated against vibrations or noise, e.g. with elastic suspension
- B62D33/0608—Cabs insulated against vibrations or noise, e.g. with elastic suspension pneumatic or hydraulic suspension
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D33/00—Superstructures for load-carrying vehicles
- B62D33/06—Drivers' cabs
- B62D33/063—Drivers' cabs movable from one position into at least one other position, e.g. tiltable, pivotable about a vertical axis, displaceable from one side of the vehicle to the other
- B62D33/067—Drivers' cabs movable from one position into at least one other position, e.g. tiltable, pivotable about a vertical axis, displaceable from one side of the vehicle to the other tiltable
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
- F15B15/228—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke having shock absorbers mounted outside the actuator housing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention relates to a damping type oil cylinder for a cab of a medium and heavy truck, which comprises an oil cylinder body, a clamping mechanism, a damping mechanism and a sleeving ring, wherein the sleeving ring is sleeved in the middle of the oil cylinder body, the damping mechanism is connected between the sleeving ring and the clamping mechanism, and the clamping mechanism is sleeved on the oil cylinder body. The invention can solve the problems that in the running process of a vehicle, a cab can synchronously rock along with the bumpy ground due to the bumpy road surface, when the vehicle rocks greatly, a piston assembly can be bent possibly to cause irreversible rotation due to the fact that an oil cylinder bears the weight of the cab and also needs to bear the huge impact force caused by the rocking of the cab, so that the oil cylinder becomes an easily-consumed object, the cost is increased, and the like.
Description
Technical Field
The invention relates to the technical field of hydraulic machinery manufacturing, in particular to a damping type oil cylinder for a driver cab of a medium and heavy truck.
Background
A plurality of parts of the medium and heavy truck are arranged below the cab, and an oil cylinder is connected between the cab and the chassis for convenient maintenance, so that the cab can be conveniently turned over when the medium and heavy truck is maintained.
However, in the driving process of the vehicle, due to the fact that the road surface is bumpy, the cab can swing synchronously along with the bumpy ground, when the vehicle swings greatly, due to the fact that the oil cylinder bears the weight of the cab and also needs to bear the huge impact force caused by the fact that the cab swings, the piston assembly can be bent to cause the irreversible rotation, the oil cylinder becomes an easily-consumed object, and the cost is increased.
Disclosure of Invention
Technical scheme (I)
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a well heavy-duty car is shock attenuation formula hydro-cylinder for driver's cabin, includes that hydro-cylinder body, screens mechanism, damper and cover establish the ring, and the middle part cover of hydro-cylinder body is equipped with the cover and establishes the ring, and the cover is established and is connected with damper between ring and the screens mechanism, and screens mechanism cover is established on the hydro-cylinder body.
The oil cylinder body comprises a cylinder body assembly and a piston assembly, the piston assembly is sleeved inside the cylinder body assembly, and the sleeved ring is sleeved at the upper end of the cylinder body assembly.
The damping mechanism comprises a first buffering branched chain, a second buffering branched chain, a first connecting frame, a second connecting frame, a locking shell, an extrusion branched chain, a U-shaped frame, a pressure plate, a pressure spring, a deep rod and a rubber layer, wherein the upper end of the first buffering branched chain is installed at the lower end of the connecting ring, the first connecting frame is installed at the lower end of the first buffering branched chain, an extrusion groove is formed in the middle of the first connecting frame, the extrusion branched chain is installed in the extrusion groove, a locking shell is arranged between the first connecting frame and the second connecting frame, the locking shell plays a role in locking the first connecting frame and the second connecting frame, the shaking generated by small-amplitude shaking is ensured to be only through the damping and buffering of the first buffering branched chain and the second buffering branched chain, when the first buffering branched chain and the second buffering branched chain are subjected to large impact force to enable the first buffering branched chain and the second buffering branched chain to be in contact with and unlock the locking shell, at the moment, the first connecting frame, the second buffering branched chain, the first buffering branched chain and the second buffering branched chain are in contact with the locking shell, The second connecting frame can slide, and under the effect of impact force, the first connecting frame, the second connecting frame is close to each other in distance, elastic jacking of the pressure plates is supported through the pressure springs, the U-shaped frame in contact with the pressure plates is enabled, elastic shock absorption is achieved between the pressure plates, meanwhile, when the deep rod enters the extrusion groove, incremental extrusion between the rubber layer and the extrusion branched chain is achieved, the elasticity of the pressure springs is matched again, the impact force is reduced, the second connecting frame is installed at the upper end of the second buffering branched chain, the lower end of the second buffering branched chain is installed on the sleeving ring, the U-shaped frame is installed at the lower end of the first connecting frame, a working groove is formed in the middle of the second connecting frame, the working groove is connected with the pressure plates in a sliding fit mode, the pressure springs are connected between the working groove and the pressure plates, the deep rod is installed at the upper end of the second connecting frame, and the rubber layers are symmetrically laid at the left end and the right end of the deep rod.
First buffering branch chain and second buffering branch chain between be the equal same branch chain of structure, size, first buffering branch chain include connecting rod, movable rod, dust cover, connecting cylinder, extrusion head, resistance unit, resistance frame and resistance spring, the connecting rod is installed on the go-between, install the movable rod on the connecting rod, the extrusion head is installed to the end of movable rod, be connected for sliding fit between movable rod and the connecting cylinder, and the connecting rod, be connected with the dust cover between the connecting cylinder, the dust cover plays dirt-proof effect, the resistance unit is installed to the left and right sides both ends symmetry of connecting cylinder, be sliding fit connection from top to bottom between connecting cylinder and the resistance frame, and be connected with the resistance spring between the front and back both ends of resistance frame and the connecting cylinder.
The extrusion branch chain comprises a first air bag, a first spring, an extrusion plate, a conveying pipe, a second air bag, a positioning block, a second spring and an extrusion layer, wherein the extrusion plate is connected with the upper end of an extrusion groove in a vertical sliding fit manner, the first air bag is connected between the extrusion plate and the extrusion groove, the first air bag is uniformly internally provided with the first spring, the first spring can restore to the original position and can also play a certain shock absorption role when penetrating into the rod to be contacted with the extrusion plate, the first air bag is communicated with the second air bag through the conveying pipe, the second air bag is installed on the side wall of the extrusion groove and is connected with the extrusion layer, the extrusion layer is connected with the extrusion groove in a horizontal sliding fit manner, the positioning block is installed inside the second air bag, the positioning block plays a role of abutting against the extrusion layer at the initial position (the second air bag is not overflowed), and the situation that the extrusion layer is driven to the outer side by the elastic restoration of the second spring to cause that the extrusion layer cannot vertically stand between the extrusion layer and the rubber layer which enters preliminarily Namely, under the condition of contact, the two are not contacted to play any role in extrusion buffering, a second spring is connected between the extrusion layer and the side wall of the extrusion groove, and the second spring plays a role in resetting.
Wherein, screens mechanism include go-between, screens piece, built-in spring, fixed block, recipient, the go-between cover is established on piston assembly, the go-between has evenly seted up the movable groove along its circumference, install the fixed block on the movable groove, be sliding fit between fixed block and the screens piece and be connected, and be connected with built-in spring between fixed block and the screens piece, built-in spring plays the effect that resets, be connected for screw-thread fit between go-between and the recipient, the screens piece supports the upper end at piston assembly.
Wherein, the latter half internal diameter of recipient from last down enlarge gradually, the inner groovy has evenly been seted up on the inclined plane of screens piece, be provided with the ball on the inner groovy, setting up of ball has reduced the screens piece and has received the extrusion and has contracted the degree of difficulty in, and the inboard wall of ball and recipient the latter half laminates mutually, the dull polish layer has been laid to the surface of recipient, the setting on dull polish layer has increased frictional resistance, made things convenient for personnel to twist of recipient to move, along with the spiral decline of recipient, make the whole internal contraction of screens piece through the extrusion of recipient inside wall to the ball.
Wherein, the resistance unit include resistance piece and reset spring, the inclined groove has been seted up to the both ends symmetry about the connecting cylinder, be connected with the resistance piece through reset spring in the inclined groove, reset spring plays the effect that resets and shore, and resistance piece outside-in is the structure of tilt up gradually, the design of slope structure has increased the resistance, elasticity shore through reset spring to the resistance piece, thereby play elastic buffer's effect to the movable rod, when the movable rod breaks through behind the resistance unit with the extrusion frame contact extrusion, at this moment, the impact force that the driver's cabin brought is difficult to cushion through first buffering branch chain, second buffering branch chain.
Wherein, the locking shell comprises a shell, a first sliding block, a second sliding block, a clamping block, a working spring, a first linkage unit and a second linkage unit, the first sliding block is symmetrically arranged at the upper end of the shell, the first sliding block is connected with a first connecting frame in a sliding fit manner, the second sliding block is symmetrically arranged at the lower end of the shell, the second sliding block is connected with a second connecting frame in a sliding fit manner, the first sliding block and the second sliding block play a sliding role, the maximum sliding distance between the shell and the first connecting frame and the second connecting frame is half of the height of the shell, the first connecting frame and the second connecting frame can be smoothly folded only after the shell is unlocked, one of the first connecting frame and the second connecting frame is unlocked, and the force of the impact force is still within the range of the first buffering branched chain and the second buffering branched chain corresponding to the impact force when the other one of the first connecting frame and the second connecting frame is not unlocked, consequently need not to carry out the shock attenuation processing with the extrusion of incremental type between rubber layer and the extrusion branch chain, the hidden groove has been seted up to the inside symmetry of casing, be connected with working spring between hidden groove and the joint piece, the joint piece enters into a few word groove one or few word groove two under working spring's effect, make casing and carriage one, lock between the carriage two, a few word groove one has been seted up on the carriage one, install first linkage unit in a few word groove one, a few word groove two has been seted up on the carriage two, install the second linkage unit in a few word groove two.
Wherein, first linkage unit and second linkage unit between be the same branch chain of structure, size homogeneous phase, first linkage unit include the extrusion frame, receive pressure piece and coupling spring, be connected for sliding fit from top to bottom between extrusion frame and the nearly word groove one, be connected with coupling spring between extrusion frame and the nearly word groove one, coupling spring plays the effect that resets, the both ends are passed through sliding fit's mode and are connected with the pressure piece about nearly word groove one.
The lower end of the extrusion frame is connected with a drag reduction roller through a pin shaft, and the drag reduction roller is attached to the inclined surface of the compression block, so that the extrusion difficulty is reduced.
The surface of the extrusion layer is of a wavy structure, the surface of the rubber layer is of a wavy structure, the design of the wavy structure increases the extrusion difficulty between the extrusion layer and the rubber layer, and the buffering is facilitated.
(II) advantageous effects
1. The damping oil cylinder for the cab of the medium and heavy truck is additionally provided with a damping function on the original oil cylinder body, the problem of shaking of the cab is solved in a three-section type damping mode, daily small-amplitude shaking can be damped through the first buffering branched chain and the second buffering branched chain, when large shaking occurs, the first buffering branched chain and the second buffering branched chain keep damping, meanwhile, elastic buffering between the U-shaped frame and the pressure plate and resistance-increasing buffering entering the extrusion branched chain through the deep rod and the rubber layer are used for secondary damping and buffering, the periphery of the piston assembly is protected through the clamping mechanism, the damping mechanism and the sleeving ring, the situation that the piston assembly deforms due to extrusion is reduced while damping is achieved, the damage to the oil cylinder body is reduced, the replacement rate is reduced, and the cost is reduced;
2. according to the damping oil cylinder for the cab of the medium and heavy truck, the first buffering branched chain and the second buffering branched chain elastically support the resistance frame through the resistance unit and the resistance spring, so that an elastic buffering effect is performed on a movable rod in movement, a normal small-amplitude bump and shake can be responded, and the damage degree of an oil cylinder body can be effectively reduced;
3. when the first buffering branch chain and the second buffering branch chain are difficult to bear impact force caused by violent shaking, the damping type oil cylinder for the cab of the medium and heavy truck, disclosed by the invention, the extruded movable rod drives the extrusion head to retract inwards until the extrusion head is in contact with the locking shell to be unlocked, the first connecting frame and the second connecting frame are unlocked and move oppositely, then the elastic support of the pressure plate is firstly carried out through the pressure spring, thereby carrying out elastic shock absorption with the contacted U-shaped frame, meanwhile, the deep rod drives the rubber layer and the extrusion layer to carry out edge extrusion, thereby slowing down the impact force, the extruded extrusion plate extrudes the gas in the first air bag into the second air bag along with the penetration of the penetration rod, the extrusion layers move oppositely, the extrusion degree between the rubber layer and the extrusion layer is improved, the impact speed is further slowed down by the improvement of the extrusion degree, and the bending condition of the piston assembly caused by large impact force is avoided.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a cross-sectional view of the detent mechanism, the damping mechanism and the retainer ring of the present invention;
FIG. 4 is a cross-sectional view of the present invention between a first coupling frame, a second coupling frame, a lock housing, an extrusion branch, a U-shaped frame, a pressure plate, a compression spring, a penetration rod and a rubber layer;
FIG. 5 is a schematic view of the structure between the connecting cylinder, the resistance unit, the resistance frame and the resistance spring of the present invention;
FIG. 6 is an enlarged view of a portion of the invention at X of FIG. 3;
fig. 7 is a partial enlarged view of the invention at Y of fig. 4.
Detailed Description
Embodiments of the present invention will be described below with reference to the drawings. In this process, the width of the lines or the size of the components in the drawings may be exaggerated for clarity and convenience of description.
The following terms are defined based on the functions of the present invention, and may be different depending on the intention of the user or the operator or the convention. Therefore, these terms are defined based on the entire contents of the present specification.
As shown in fig. 1 to 7, a shock absorption type oil cylinder for a cab of a medium and heavy vehicle comprises an oil cylinder body 1, a clamping mechanism 2, a shock absorption mechanism 3 and a sleeve installation ring 4, wherein the sleeve installation ring 4 is sleeved at the middle part of the oil cylinder body 1, the shock absorption mechanism 3 is connected between the sleeve installation ring 4 and the clamping mechanism 2, and the clamping mechanism 2 is sleeved on the oil cylinder body 1.
The oil cylinder body 1 comprises a cylinder body assembly 11 and a piston assembly 12, the piston assembly 12 is sleeved inside the cylinder body assembly 11, and the sleeved ring 4 is sleeved at the upper end of the cylinder body assembly 11.
The clamping mechanism 2 comprises a connecting ring 21, a clamping block 22, an internal spring 23, a fixed block 24 and an extrusion cylinder 25, the connecting ring 21 is sleeved on the piston assembly 12, a movable groove is uniformly formed in the connecting ring 21 along the circumferential direction of the connecting ring, the fixed block 24 is installed on the movable groove, the fixed block 24 is connected with the clamping block 22 in a sliding fit manner, the internal spring 23 is connected between the fixed block 24 and the clamping block 22, the internal spring 23 plays a resetting role, the connecting ring 21 is connected with the extrusion cylinder 25 in a threaded fit manner, the clamping block 22 abuts against the upper end of the piston assembly 12, the inner diameter of the lower half part of the extrusion cylinder 25 is gradually enlarged from top to bottom, the inner groove is uniformly formed in the inclined surface of the clamping block 22, balls are arranged on the inner groove, the arrangement of the balls reduces the difficulty in extruding the clamping block 22, and the balls are attached to the inner side wall of the lower half part of the extrusion cylinder 25, the frosted layer has been laid to the surface of recipient 25, the setting on frosted layer has increased frictional resistance, made things convenient for personnel to twist of recipient 25 to move, along with the spiral decline of recipient 25, make the whole internal contraction of screens piece 22 through the extrusion of recipient 25 inside wall to the ball, concrete during operation, establish ring 4 cover with the cover and establish behind cylinder body subassembly 11, press the cover to establish on piston assembly 12 with go-between 21 down, later rotate recipient 25, thereby recipient 25 spiral decline extrudes screens piece 22 and wholly contract, screens piece 22 through the internal contraction and piston assembly 12's upper end joint, at this moment, through screens mechanism 2, the cover is established ring 4 and is fixed a position piston assembly 12, cylinder body subassembly 11 from top to bottom, thereby with hydro-cylinder body 1, screens mechanism 2, damper 3 and the cover are established and are assembled between the ring 4.
The damping mechanism 3 comprises a first buffering branched chain 31, a second buffering branched chain 32, a first connecting frame 33, a second connecting frame 34, a locking shell 35, an extrusion branched chain 36, a U-shaped frame 37, a pressure plate 38, a pressure spring 39, a deep rod 40 and a rubber layer 41, wherein the upper end of the first buffering branched chain 31 is installed at the lower end of the connecting ring 21, the first connecting frame 33 is installed at the lower end of the first buffering branched chain 31, an extrusion groove is formed in the middle of the first connecting frame 33, the extrusion branched chain 36 is installed in the extrusion groove, the locking shell 35 is arranged between the first connecting frame 33 and the second connecting frame 34, the locking shell 35 plays a locking role on the first connecting frame 33 and the second connecting frame 34, the vibration generated by small-amplitude vibration is ensured to be only required to be damped by the first buffering branched chain 31 and the second buffering branched chain 32, when the vibration is seriously buffered, the first buffering branched chain 31 and the second buffering branched chain 32 are subjected to large impact force to enable the first buffering branched chain 31 and the second buffering branched chain 32 to be contacted with the locking shell 35 for unlocking, at the moment, the first connecting frame 33 and the second connecting frame 34 can slide, under the action of impact force, the first connecting frame 33 and the second connecting frame 34 are close to each other, the elastic propping of the pressure plate 38 is realized through the pressure spring 39, so that the elastic shock absorption is realized between the U-shaped frame 37 and the pressure plate 38 which are contacted with the first connecting frame 33 and the second connecting frame 34, meanwhile, when the deep rod 40 enters the extrusion groove, the progressive extrusion is realized between the rubber layer 41 and the extrusion branched chain 36, the impact force is relieved by matching the elasticity of the pressure spring 39, the second connecting frame 34 is arranged at the upper end of the second buffering branched chain 32, the lower end of the second buffering branched chain 32 is arranged on the sleeving ring 4, the U-shaped frame 37 is arranged at the lower end of the first connecting frame 33, the working groove is arranged in the middle part of the second connecting frame 34, the working groove is connected with the pressure plate 38 in a sliding fit manner, the pressure spring 39 is connected between the working groove and the pressure plate 38, the deep rod 40 is arranged at the upper end of the second connecting frame 34, rubber layers 41 are symmetrically laid at the left end and the right end of the deep rod 40, during specific work, the arrangement of the first buffering branched chain 31 and the second buffering branched chain 32 achieves a damping and buffering effect on normal bumping and shaking of a cab, when the cab is shaken to a large degree, the impact force which can be borne by the first buffering branched chain 31 and the second buffering branched chain 32 reaches the maximum value, the locking shell 35, the first connecting frame 33 and the second connecting frame 34 are unlocked, at the moment, the elastic buffering between the U-shaped frame 37 and the pressure plate 38 and the resistance-increasing type buffering of the deep rod 40 and the rubber layers 41 entering the extrusion branched chain 36 are used for secondary damping and buffering, and the possibility of damage of the oil cylinder body 1 and the discomfort degree of a driver are reduced.
The first buffer branched chain 31 and the second buffer branched chain 32 are branched chains with the same structure and size, the first buffer branched chain 31 comprises a connecting rod 311, a movable rod 312, a dust cover 313, a connecting cylinder 314, an extrusion head 315, a resistance unit 316, a resistance frame 317 and a resistance spring 318, the connecting rod 311 is installed on the connecting ring 21, the movable rod 312 is installed on the connecting rod 311, the extrusion head 315 is installed at the end of the movable rod 312, the movable rod 312 is connected with the connecting cylinder 314 in a sliding fit manner, the dust cover 313 is connected between the connecting rod 311 and the connecting cylinder 314, the dust cover 313 has a dust-proof effect, the resistance units 316 are symmetrically installed at the left end and the right end of the connecting cylinder 314, the connecting cylinder 314 is connected with the resistance frame 317 in an up-down sliding fit manner, the resistance springs 318 are connected between the front end and the rear end of the resistance frame 317 and the connecting cylinder 314, and during specific work, the resistance units 316 and the resistance springs 318 elastically support the resistance frame 317, thereby cushioning the active rod 312 and further coping with normal jolting and shaking.
The resistance unit 316 include resistance block 3161 and reset spring 3162, the inclined groove has been seted up to the left and right ends symmetry of connecting cylinder 314, be connected with resistance block 3161 through reset spring 3162 in the inclined groove, reset spring 3162 plays the effect of reseing and shoring, and resistance block 3161 outside-in is the structure of ascending slope gradually, the design of slope structure has increased the resistance, elasticity shoring to resistance block 3161 through reset spring 3162, thereby play the effect of elastic buffer to movable rod 312, when movable rod 312 breaks through behind the resistance unit 316 and contact the extrusion frame 3561 extrusion, at this moment, the impact force that the driver's cabin brought is difficult to cushion through first buffering branched chain 31, second buffering branched chain 32.
The locking shell 35 comprises a shell 351, a first sliding block 352, a second sliding block 353, a clamping block 354, a working spring 355, a first linkage unit 356 and a second linkage unit 357, wherein the first sliding block 352 is symmetrically installed at the upper end of the shell 351, the first sliding block 352 is connected with a first connecting frame 33 in a sliding fit manner, the second sliding block 353 is symmetrically installed at the lower end of the shell 351, the second sliding block 353 is connected with a second connecting frame 34 in a sliding fit manner, the first sliding block 352 and the second sliding block 353 play a sliding role, the maximum sliding distance between the shell 351 and the first connecting frame 33 and the second connecting frame 34 is half of the height of the shell, the situation that the first connecting frame 33 and the second connecting frame 34 can be smoothly folded only after the shell 351 is unlocked and the first connecting frame 33 and the second connecting frame 34 are unlocked is ensured, when one of the first connecting frame 33 and the second connecting frame 34 is unlocked and the other is not unlocked, the dynamics of impact force still is in first buffering branch chain 31, within the scope that second buffering branch chain 32 dealt with the impact force, consequently need not to carry out shock attenuation processing by incremental type extrusion between rubber layer 41 and the extrusion branch chain 36, the inside symmetry of casing 351 has seted up hidden groove, be connected with work spring 355 between hidden groove and the joint piece 354, joint piece 354 enters into a few word groove one or a few word groove two under work spring 355's effect, make casing 351 and connection frame one 33, lock between the connection frame two 34, a few word groove one has been seted up on the connection frame one 33, install first linkage unit 356 in a few word groove one, a few word groove two has been seted up on the connection frame two 34, a few word groove two is interior to install second linkage unit 357.
The first linkage unit 356 and the second linkage unit 357 are branched chains with the same structure and size, the first linkage unit 356 comprises an extrusion frame 3561, a compression block 3562 and a connection spring 3563, the extrusion frame 3561 is connected with a plurality of grooves in a vertically sliding fit manner, the connection spring 3563 is connected between the extrusion frame 3561 and the plurality of grooves, the connection spring 3563 plays a role in resetting, the left end and the right end of each groove are connected with the compression block 3562 in a sliding fit manner, the lower end of the extrusion frame 3561 is connected with a drag reduction roller through a pin shaft, the drag reduction roller is attached to an inclined surface of the compression block 3562, the extrusion difficulty is reduced, when the first buffer branched chain 31 and the second buffer branched chain 32 are difficult to bear impact force caused by violent shaking, the movable rod 312 drives the extrusion head to compress in the extrusion 315 under the extrusion of the impact force of a cab so as to be in contact with the extrusion frame 3561 and then move synchronously, the compression block 3562 is extruded by the extrusion frame 3561 so that the compression block 3562 moves outwards, the clamping block 354 is pushed out from the first groove or the second groove, and at this time, the shell 351 is unlocked with the first connecting frame 33 and the second connecting frame 34.
The extrusion branched chain 36 comprises a first air bag 361, a first spring 362, an extrusion plate 363, a conveying pipe 364, a second air bag 365, a positioning block 366, a second spring 367 and an extrusion layer 368, wherein the extrusion plate 363 is connected with the upper end of the extrusion groove in a vertically sliding fit manner, the first air bag 361 is connected between the extrusion plate 363 and the extrusion groove, the first spring 362 is uniformly arranged in the first air bag 361, the first spring 362 can play a certain shock absorption role through elastic support of the first spring 362 when the deep rod 40 is contacted with the extrusion plate 363 while returning, the conveying pipe 364 is communicated between the first air bag 361 and the second air bag 365, the second air bag 365 is arranged on the side wall of the extrusion groove, the second air bag 365 is connected with the extrusion layer 368, the extrusion layer 368 is connected with the extrusion groove in a horizontally sliding fit manner, the positioning block 366 is arranged in the second air bag 365, and the positioning block 366 is arranged to abut against the extrusion layer 368 at the initial position (the position where the second air bag 365 is not overflowed), the situation that the extrusion layer 368 is driven to the position which is too far outside by the elastic reset of the second spring 367 to cause the situation that the extrusion layer 368 cannot be immediately contacted with the rubber layer 41 which enters preliminarily is prevented from being contacted, the two rubber layers cannot achieve any extrusion buffering effect due to the fact that the extrusion layer 368 and the side wall of the extrusion groove are not contacted with each other, the second spring 367 is connected between the extrusion layer 368 and the side wall of the extrusion groove and plays a role in resetting, the surface of the extrusion layer 368 is of a wavy structure, the surface of the rubber layer 41 is of a wavy structure, the extrusion difficulty between the extrusion layer 368 and the extrusion groove is increased due to the design of the wavy structure, buffering is facilitated, when the first buffer branched chain 31 and the second buffer branched chain 32 are difficult to bear impact force caused by severe shaking in specific work, the movable rod 312 drives the extrusion head 315 to retract under the extrusion of cab impact force to be in contact with the locking shell 35 for unlocking, so that the positions of the first connecting frame 33 and the second connecting frame 34 can move, under the effect of impact force, the two draws close gradually, earlier prop through pressure spring 39 to the elasticity of pressure plate 38, thereby carry out elastic damping with the U type frame 37 of contact, meanwhile, go deep into pole 40 and enter into the extrusion groove in, carry out the edge extrusion between rubber layer 41 and the extrusion layer 368, thereby reduce the impact force, along with going deep into pole 40, go deep into pole 40 and extrude the two 365 of gasbag with the gas extrusion in the first 361 of gasbag to the extrusion plate 363, the two 365 of gasbag that arrange about gradually overflows thereby drive the extrusion layer 368 and draw close in opposite directions, at this moment, the extrusion degree between rubber layer 41 and the extrusion layer 368 improves, thereby further extrusion slows down the impact force.
When in work:
when the automobile runs on a bumpy road, the cab part of the automobile shakes;
when the shaking amplitude is small, the resistance unit 316 and the resistance spring 318 elastically support the resistance frame 317, so that the movable rod 312 in the movement is buffered, and the small-amplitude shaking is responded;
when the shaking amplitude is too large, the first buffer branched chain 31 and the second buffer branched chain 32 are difficult to bear the impact force caused by violent shaking, the movable rod 312 drives the extrusion head 315 to retract under the extrusion of the impact force of the cab so as to be contacted with the extrusion frame 3561, the clamping block 354 is ejected out from the first groove or the second groove under the action of the extrusion force, the shell 351 is unlocked with the first connecting frame 33 and the second connecting frame 34, and then secondary shock absorption and buffering are performed through elastic buffering between the U-shaped frame 37 and the pressure plate 38, resistance-increasing type buffering entering the extrusion branched chain 36 through the deep rod 40 and the rubber layer 41, so that the purpose of shock absorption and buffering is further achieved.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The utility model provides a well heavy-duty car is shock attenuation formula hydro-cylinder for driver's cabin, includes that hydro-cylinder body (1), screens mechanism (2), damper (3) and cover establish ring (4), its characterized in that: a sleeving ring (4) is sleeved in the middle of the oil cylinder body (1), a damping mechanism (3) is connected between the sleeving ring (4) and the clamping mechanism (2), and the clamping mechanism (2) is sleeved on the oil cylinder body (1);
the oil cylinder body (1) comprises a cylinder body assembly (11) and a piston assembly (12), the piston assembly (12) is sleeved inside the cylinder body assembly (11), and the sleeved ring (4) is sleeved at the upper end of the cylinder body assembly (11);
the damping mechanism (3) comprises a first buffering branched chain (31), the upper end of the first buffering branched chain (31) is installed at the lower end of the connecting ring (21), a first connecting frame (33) is installed at the lower end of the first buffering branched chain (31), an extrusion groove is formed in the middle of the first connecting frame (33), an extrusion branched chain (36) is installed in the extrusion groove, a locking shell (35) is arranged between the first connecting frame (33) and the second connecting frame (34), the second connecting frame (34) is installed at the upper end of the second buffering branched chain (32), the lower end of the second buffering branched chain (32) is installed on the sleeving ring (4), a U-shaped frame (37) is installed at the lower end of the first connecting frame (33), a working groove is formed in the middle of the second connecting frame (34), the working groove is connected with the pressure plate (38) in a sliding fit manner, and a pressure spring (39) is connected between the working groove and the pressure plate (38), the upper end of the second connecting frame (34) is provided with a deep rod (40), and the left end and the right end of the deep rod (40) are symmetrically paved with rubber layers (41);
the buffer structure is characterized in that a branched chain with the same structure and size is arranged between the first buffer branched chain (31) and the second buffer branched chain (32), the first buffer branched chain (31) comprises a connecting rod (311), the connecting rod (311) is installed on a connecting ring (21), a movable rod (312) is installed on the connecting rod (311), an extrusion head (315) is installed at the end of the movable rod (312), the movable rod (312) is connected with a connecting cylinder (314) in a sliding fit manner, a dust cover (313) is connected between the connecting rod (311) and the connecting cylinder (314), resistance units (316) are symmetrically installed at the left end and the right end of the connecting cylinder (314), the connecting cylinder (314) is connected with a resistance frame (317) in an up-down sliding fit manner, and resistance springs (318) are connected between the front end and the rear end of the resistance frame (317) and the connecting cylinder (314);
extrusion branch chain (36) including stripper plate (363), stripper plate (363) are connected for upper and lower sliding fit with the upper end in extrusion groove, and be connected with gasbag one (361) between stripper plate (363) and the extrusion groove, gasbag one (361) inside evenly is provided with spring one (362), intercommunication has conveyer pipe (364) between gasbag one (361) and gasbag two (365), gasbag two (365) are installed on the lateral wall in extrusion groove, gasbag two (365) are connected with extrusion layer (368), be connected for left and right sliding fit between extrusion layer (368) and the extrusion groove, the internally mounted of gasbag two (365) has locating piece (366), be connected with spring two (367) between extrusion layer (368) and the extrusion groove lateral wall.
2. The damping cylinder for the cab of the medium and heavy truck as claimed in claim 1, wherein: screens mechanism (2) including go-between (21), screens piece (22), built-in spring (23), fixed block (24), recipient (25), go-between (21) cover is established on piston assembly (12), movable groove has evenly been seted up along its circumference in go-between (21), install fixed block (24) on the movable groove, be connected for sliding fit between fixed block (24) and screens piece (22), and be connected with built-in spring (23) between fixed block (24) and screens piece (22), be connected for screw-thread fit between go-between (21) and recipient (25), screens piece (22) support the upper end at piston assembly (12).
3. The damping cylinder for the cab of the medium and heavy truck as claimed in claim 2, wherein: the latter half internal diameter of recipient (25) from last down enlarge gradually, the inner groovy has evenly been seted up on the inclined plane of screens piece (22), is provided with the ball on the inner groovy, and the ball laminates with the inboard wall of recipient (25) the latter half mutually, the frosting has been laid to the surface of recipient (25).
4. The damping cylinder for the cab of the medium and heavy truck as claimed in claim 1, wherein: the resistance unit (316) comprises a resistance block (3161) and a return spring (3162), inclined grooves are symmetrically formed in the left end and the right end of the connecting cylinder (314), the inclined grooves are connected with the resistance block (3161) through the return spring (3162), and the resistance block (3161) is of a structure which gradually inclines upwards from outside to inside.
5. The damping cylinder for the cab of the medium and heavy truck as claimed in claim 1, wherein: the locking shell (35) comprises a shell (351), a first sliding block (352), a second sliding block (353), a clamping block (354), a working spring (355), a first linkage unit (356) and a second linkage unit (357), sliding block one (352) is installed to the upper end symmetry of casing (351), be connected for sliding fit between sliding block one (352) and connection frame one (33), sliding block two (353) are installed to the lower extreme symmetry of casing (351), be connected for sliding fit between sliding block two (353) and connection frame two (34), the hidden groove has been seted up to the inside symmetry of casing (351), be connected with work spring (355) between hidden groove and joint piece (354), several word grooves one have been seted up on connection frame one (33), install first linkage unit (356) in several word grooves one, several word grooves two have been seted up on connection frame two (34), install second linkage unit (357) in several word grooves two.
6. The damping cylinder for the cab of the medium and heavy truck as claimed in claim 5, wherein: first linkage unit (356) and second linkage unit (357) between be the branch chain that structure, size are all the same, first linkage unit (356) including extrusion frame (3561), receive pressure piece (3562) and coupling spring (3563), be connected for sliding fit from top to bottom between extrusion frame (3561) and the several word grooves one, be connected with coupling spring (3563) between extrusion frame (3561) and the several word grooves one, both ends are connected with pressure piece (3562) through sliding fit's mode about the several word grooves one.
7. The damping cylinder for the cab of the medium and heavy truck as claimed in claim 6, wherein: the lower end of the extrusion frame (3561) is connected with a drag reduction roller through a pin shaft, and the drag reduction roller is attached to the inclined surface of the compression block (3562).
8. The damping cylinder for the cab of the medium and heavy truck as claimed in claim 1, wherein: the surface of the extrusion layer (368) is of a wavy structure, and the surface of the rubber layer (41) is of a wavy structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110933123.0A CN113606221B (en) | 2021-08-13 | 2021-08-13 | Damping type oil cylinder for driver's cab of medium and heavy truck |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110933123.0A CN113606221B (en) | 2021-08-13 | 2021-08-13 | Damping type oil cylinder for driver's cab of medium and heavy truck |
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| CN113606221A CN113606221A (en) | 2021-11-05 |
| CN113606221B true CN113606221B (en) | 2022-03-11 |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10236137B4 (en) * | 2002-08-07 | 2010-05-06 | Suspa Holding Gmbh | spring strut |
| DE102006053861A1 (en) * | 2006-11-14 | 2009-01-02 | Zf Friedrichshafen Ag | Vibration damper with end stop |
| CN104154164B (en) * | 2014-07-25 | 2015-12-30 | 安徽德鸿机件制造有限公司 | A kind of damping oil cylinder for medium-heavy automobile driver's cab turnover |
| CN109973584B (en) * | 2019-04-28 | 2021-08-24 | 无锡琼琚机械科技有限公司 | Temperature control design method for heavy truck cab shock absorber |
| CN212131185U (en) * | 2019-12-05 | 2020-12-11 | 重庆瑞琪翔机械制造有限公司 | Rear shock absorber suspension assembly |
| CN212028227U (en) * | 2020-04-27 | 2020-11-27 | 恒和(福建)机械工贸有限责任公司 | Hydraulic cylinder with noise-reducing and shock-absorbing functions |
| CN212055654U (en) * | 2020-05-09 | 2020-12-01 | 河南省发达起重机有限公司 | Novel crane cab damping mechanism |
| CN213655569U (en) * | 2020-09-12 | 2021-07-09 | 伍享汽车配件（太仓）有限公司 | Multistage buffering automobile shock absorber ware |
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Denomination of invention: A shock-absorbing oil cylinder for the cab of medium and heavy trucks Effective date of registration: 20230804 Granted publication date: 20220311 Pledgee: China Postal Savings Bank Co.,Ltd. Lai'an County Branch Pledgor: ANHUI DEHONG WORK MANUFACTURE Co.,Ltd. Registration number: Y2023980051006 |