CN114407600B - Two-stage series rubber spring balanced suspension - Google Patents
Two-stage series rubber spring balanced suspension Download PDFInfo
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- CN114407600B CN114407600B CN202210153667.XA CN202210153667A CN114407600B CN 114407600 B CN114407600 B CN 114407600B CN 202210153667 A CN202210153667 A CN 202210153667A CN 114407600 B CN114407600 B CN 114407600B
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- rubber spring
- spring
- swing arm
- rubber
- fixing part
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/32—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds
- B60G11/48—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds not including leaf springs
- B60G11/52—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds not including leaf springs having helical, spiral or coil springs, and also rubber springs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G21/00—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
- B60G21/02—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected
- B60G21/04—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically
- B60G21/05—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
- B60G21/055—Stabiliser bars
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2200/00—Indexing codes relating to suspension types
- B60G2200/30—Rigid axle suspensions
- B60G2200/34—Stabilising mechanisms, e.g. for lateral stability
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/10—Type of spring
- B60G2202/12—Wound spring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/10—Type of spring
- B60G2202/14—Plastic spring, e.g. rubber
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
Abstract
The invention provides a two-stage series rubber spring balance suspension, which relates to the technical field of automobile manufacturing and comprises the following components: the frame is connected with the bracket, the middle rubber spring, the balance swing arm, the rubber spring on the bridge and the thrust rod; the frame connecting bracket comprises a first fixing part, a second fixing part and a third fixing part, wherein a middle rubber spring support used for connecting a middle rubber spring is arranged on the second fixing part, and the middle rubber spring is connected with the balance swing arm; the balance swing arm comprises a first groove, a first installation plane and a second installation plane, the bottoms of the first installation plane and the second installation plane are connected with an on-axle rubber spring, and the balance swing arm is connected with an automobile axle through the on-axle rubber spring; the bottom outside the first groove of the balance swing arm is connected with a hinge joint of a thrust rod, and the thrust rod is connected with an automobile axle. The invention adopts a serial structure that the middle rubber spring and the bridge rubber spring form an elastic element to improve the vibration reduction effect of the suspension.
Description
Technical Field
The invention relates to the technical field of automobile manufacturing, in particular to a two-stage series rubber spring balanced suspension.
Background
Automotive suspensions are an essential component for connecting a vehicle body and an axle, and are capable of cushioning and attenuating an impact from a road surface while transmitting driving force and braking force of a vehicle.
The balance suspension is a conjuncted suspension form of two axles used in pairs on the chassis of the automobile, and is a two-axle suspension and a three-axle suspension of a tri-axle vehicle. The main characteristics of the device are as follows: on the uneven road surface, each axle can independently complete bouncing movement, and meanwhile, the movement of each axle is reacted to the adjacent axle, so that the suspended state of individual wheels is eliminated or reduced, and the optimal driving effect is achieved.
According to the different elastic elements adopted in the suspension, the suspension forms at home and abroad at present comprise: leaf spring suspensions, torsion bar spring suspensions, air spring suspensions, hydro-pneumatic spring suspensions, helical spring suspensions, and rubber spring suspensions. The rubber spring suspension has entered an application stage abroad, only individual factories are tried on individual vehicle types in China at present, and technical solutions are provided by the overseas manufacturers. The research and application of rubber suspensions by China's enterprises and scientific institutions are far behind abroad.
The most common rear double-axle driving vehicle in the market at present commonly adopts a leaf spring balance suspension, the adopted tower-shaped lamination leaf spring has large weight, and the vibration frequency fluctuation of no-load and full-load is large; torsion bar spring suspensions are only suitable for use in independent suspension arrangements; the air bags of the air spring suspension are large in size and are difficult to arrange into a double-bridge balance suspension; the hydro-pneumatic spring and the spiral spring are difficult to form a balance suspension with compact structure because the self-occupied space of the elastic element is large.
Disclosure of Invention
In order to overcome the problems in the prior art, the invention provides a two-stage series rubber spring balanced suspension.
The technical scheme of the invention is as follows:
a two-stage series rubber spring balanced suspension comprising:
the frame is connected with the bracket, the middle rubber spring, the balance swing arm, the rubber spring on the bridge and the thrust rod;
the frame connecting bracket comprises a first fixing part, a second fixing part and a third fixing part, wherein the first fixing part and the third fixing part are vertically connected with the second fixing part, a first mounting hole for being connected with an automobile girder is formed in the first fixing part and the third fixing part, a second fixing hole for being connected with a balance swing arm is formed in the second fixing part, a middle rubber spring support for being connected with a middle rubber spring is arranged in the second fixing part, and the middle rubber spring is connected with the balance swing arm;
the balance swing arm comprises a first groove, a first installation plane and a second installation plane, the first installation plane and the second installation plane are connected with the opening of the first groove, rubber springs on the bridge are arranged at the bottoms of the first installation plane and the second installation plane, and the balance swing arm is connected with an automobile axle through the rubber springs on the bridge; the bottom outside the first groove of the balance swing arm is connected with a hinge joint of a thrust rod, and the thrust rod is connected with an automobile axle.
As a further technical scheme of the invention, a through hole for connecting a rotating shaft is arranged on the second fixing part; a bearing is arranged in the rotating shaft, and a rotating shaft sleeve is sleeved on the outer side of the rotating shaft; the outside of the rotating shaft sleeve is provided with a middle rubber spring support used for being connected with a middle rubber spring.
According to the further technical scheme, the connecting base plate is arranged on the automobile axle and comprises a first connecting block connected with the rubber spring on the axle and a second connecting block connected with the thrust rod, the second connecting block is arranged at the bottom of the first connecting block, and the first connecting block and the second connecting block are of an integrated structure and are connected with the automobile axle.
According to the further technical scheme, the middle rubber spring support comprises a clamping plate provided with a circular groove, the clamping plate is sleeved on the outer side of the rotary shaft sleeve, fixing plates used for being connected with the middle rubber spring are arranged on two sides of the clamping plate, and mounting screw holes are formed in the fixing plates.
According to the technical scheme, the two groups of the middle-position rubber springs are formed into an A-shaped structure, the upper flanges of the two groups of the middle-position rubber springs are connected with the fixed plate, and the lower flanges of the two groups of the middle-position rubber springs are connected with two sides of the first groove of the balance swing arm.
According to the further technical scheme, the middle rubber spring is of a U-shaped structure, through holes are formed in the U-shaped rubber spring, the upper flange of the U-shaped rubber spring is connected with the fixing plate in a fit mode, and the lower flange of the U-shaped rubber spring is connected with the first groove in a fit mode.
According to the technical scheme, the rubber spring on the bridge comprises a top flange plate, a bottom flange plate, a spiral spring and a rubber block, wherein the rubber block spiral spring is vulcanized and processed into a whole, one end of the rubber block is connected with the top flange plate, and the other end of the rubber block is connected with the bottom flange plate.
As a further technical scheme of the invention, the rubber spring on the bridge adopts a composite structure formed by vulcanizing metal and rubber into a whole.
As a further technical scheme of the invention, the balance swing arm and the frame connecting bracket are formed by bending and welding steel plates.
The frame connecting bracket is connected with the automobile girder through bolts or rivets, and the frame connecting bracket is welded or connected with the rotating shaft through bolts.
The beneficial effects of the invention are as follows:
1. the cross section of the frame connecting bracket is C-shaped, the frame connecting bracket is externally wrapped on the outer side of the automobile girder and is connected with the automobile girder through bolts or rivets, the rubber balance suspension is used in double, and the rubber balance suspension is symmetrically arranged on two sides of the automobile girder;
2. when the balance swing arm swings slightly relative to the automobile body, the balance swing arm is realized by the distortion of the middle rubber spring; the middle rubber spring is symmetrically arranged at two sides of the rotating shaft sleeve by adopting an A-shaped structure formed by two independent rubber springs or is arranged below the rotating shaft sleeve by adopting an independent U-shaped structure;
3. when the balance swing arm swings greatly relative to the automobile body, the balance swing arm is realized by assembling a rotating shaft sleeve, a bearing and a rotating shaft.
4. The rubber spring on the bridge needs to have enough compression or extension in a limited height range to realize the best impact energy absorption effect, and adopts a structural composite material structure formed by vulcanizing a spiral spring and a rubber block into a whole; the middle rubber spring and the bridge rubber spring logically belong to a series structure, and the series connection of the two-stage springs can obtain smaller spring stiffness, so that a better vibration reduction effect is obtained.
5. The balance swing arm is designed into a bird wing structure and is formed by three breadth, and can be formed by splicing and welding steel plates or casting, and the structural form enables the rubber springs on the bridge and the middle rubber springs to form a two-stage series connection relationship, and the series connection relationship does not additionally increase the total height dimension, so that the whole structure of the bridge is very compact.
6. The invention is an independent modularized design, and can adjust the size of specific parts according to the tonnage levels and axle load distribution sizes of different vehicles to form a series of products; the balanced suspension can replace the middle-rear axle balanced suspension with the most widely used 6x4 chassis at present, and can be applied to special vehicles with smaller output and strong individuation, such as mining vehicles, military off-road vehicles, oilfield and deep forest operation vehicles.
Drawings
FIG. 1 is a diagram of a structure of an automobile rubber balance suspension provided by the invention;
FIG. 2 is a diagram of the symmetrical structure of FIG. 1;
FIG. 3 is a view showing a structure of the present invention coupled to an automobile girder and an automobile axle;
FIG. 4 is a schematic view of the A-shaped arrangement of the middle rubber spring according to the present invention;
FIG. 5 is a schematic view showing the arrangement of the U-shaped structure of the middle rubber spring;
FIG. 6 is a schematic view of the frame coupling bracket according to the present invention;
fig. 7 is a schematic view of a bird wing structure of the balance swing arm according to the present invention;
FIG. 8 is a schematic view of the installation of the rotating shaft, the bearing and the rotating shaft sleeve according to the present invention;
FIG. 9 is a schematic view showing the split of the rotating shaft, the bearing and the rotating shaft sleeve;
FIG. 10 is a schematic view of a frame coupled bracket non-rotating shaft according to the present invention;
FIG. 11 is a front view of an on-bridge rubber spring according to the present invention;
FIG. 12 is a perspective view of an on-bridge rubber spring according to the present invention;
fig. 13 is a schematic structural view of the thrust rod according to the present invention;
FIG. 14 is a schematic view of an axle of a vehicle according to the present invention;
the figure shows:
10-frame connecting brackets, 20-middle rubber springs, 30-balance swing arms, 40-bridge rubber springs, 50-thrust rods, 60-automobile girders, 70-automobile axles and 80-rotating shafts;
101-a first fixing part, 102-a second fixing part, 103-a third fixing part;
201-middle rubber spring support, 211-clamping plate and 212-fixing plate;
301-first groove, 302-first mounting plane, 303-second mounting plane;
401-top flange plate, 402-bottom flange plate, 403-coil springs, 404-rubber blocks;
501-a hinge joint;
701-connecting pad, 711-first connecting block, 712-second connecting block;
801-bearing, 802-rotating sleeve.
Detailed Description
The conception, specific structure, and technical effects produced by the present invention will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, features, and effects of the present invention. It is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive effort are within the scope of the present invention based on the embodiments of the present invention.
The rubber spring is used as an elastic element, and by reasonable combination with a metal piece, the rubber spring is superior to other types of springs in the aspects of elastic characteristics, space structure, self weight, manufacturing and maintenance cost and the like, and specifically: the rubber spring has lighter weight and wider rigidity variable range than the steel plate spring; the structure arrangement is convenient compared with a torsion bar spring; the volume is smaller than that of the air spring, and the lateral impact resistance is strong; the manufacturing and maintenance cost is lower than that of the hydro-pneumatic spring; less space is occupied than a coil spring. The invention applies the rubber spring to the automobile balance suspension.
The invention fully utilizes the inherent characteristics of the rubber spring, and replaces other forms of elastic elements with the rubber spring to construct a brand new automobile balance suspension; the automobile rubber balance suspension not only needs to provide motion constraint for a single axle, but also needs to ensure the motion freedom degree in the direction perpendicular to the road surface, and meanwhile, the motion of the single axle is reversely acted on the adjacent axles, so that on one hand, the two axles working in pairs can effectively relieve the impact from the road surface, and on the other hand, the condition that the wheels are suspended can be eliminated.
Referring to fig. 1 and 2, a two-stage series rubber spring balanced suspension comprising:
the frame is connected with a bracket 10, a middle rubber spring 20, a balance swing arm 30, an on-bridge rubber spring 40 and a thrust rod 50;
the frame coupling bracket 10 comprises a first fixing part 101, a second fixing part 102 and a third fixing part 103, wherein the first fixing part 101 and the third fixing part 103 are vertically connected with the second fixing part 102, a first mounting hole for connecting with the automobile girder 60 is formed in the first fixing part 101 and the third fixing part 103, and a second fixing hole for connecting with the balance swing arm 30 is formed in the second fixing part 102;
the second fixing part 102 is provided with a middle rubber spring support 201 for connecting the middle rubber spring 20, and the middle rubber spring 20 is connected with the balance swing arm 30;
the balance swing arm 30 comprises a first groove 301, a first installation plane 302 and a second installation plane 303, the first installation plane 302 and the second installation plane 303 are connected with the opening of the first groove 301, the bottoms of the first installation plane 302 and the second installation plane 303 are provided with an on-bridge rubber spring 40, and the balance swing arm 30 is connected with the automobile axle 70 through the on-bridge rubber spring 40; the outer bottom of the first groove 301 of the balance swing arm 30 is connected with a hinge joint 501 of a thrust rod 50, and the thrust rod 50 is connected with an automobile axle 70.
In the embodiment of the invention, the cross section of the frame connecting bracket 1 is C-shaped, and the frame connecting bracket is externally wrapped on the outer side of the automobile girder and is connected with the automobile girder through bolts or rivets. The rubber balance suspensions are used in double and are symmetrically arranged on two sides of the automobile girder; the assembled state of the automobile girder and the automobile axle is shown in fig. 3.
In the embodiment, the middle rubber spring can adopt different structural forms, and as shown in fig. 4, two independent middle rubber springs are symmetrically arranged on two sides of the rotating shaft sleeve in an A shape; alternatively, as shown in fig. 5, a separate U-shaped rubber spring is used to perform the same function, and the swivel sleeve may be evolved into a structure integrally vulcanization-bonded to the rubber spring as shown in fig. 5.
In the embodiment of the present invention, the structure of the middle rubber springs may be set as required, and an a-type structure formed by two sets of middle rubber springs may be adopted, or a U-type rubber spring attached to the first groove may be adopted, specifically based on practical design and application, where the middle rubber springs 20 are two sets, the upper flanges 202 of the two sets of middle rubber springs 20 are connected with the fixing plate 212, and the lower flanges 203 of the two sets of middle rubber springs 20 are connected with two sides of the first groove 301 of the balance swing arm 30. The middle rubber spring is in an A-shaped arrangement structure, and the structure has the comprehensive properties of resisting longitudinal impact, vertical road surface impact and torsion impact.
The middle rubber spring 20 is a U-shaped rubber spring, wherein a through hole is formed in the U-shaped rubber spring, an upper flange of the U-shaped rubber spring is connected with the fixing plate in a fitting mode, and a lower flange of the U-shaped rubber spring is connected with the first groove 301 in a fitting mode.
Referring to fig. 6, the frame connection bracket provides a connection interface between the rubber balance suspension of the present invention and the girder of the automobile, and can be conveniently connected with the girder of the automobile, the frame connection bracket has a similar C-shaped structure with the appearance of the girder of the automobile, and can be directly applied to the rubber balance suspension of the present invention by connecting the frame connection bracket with the upper and lower flanges or the vertical webs of the girder through bolts or rivets without special design or special modification of the girder of the existing automobile.
The balance swing arm is designed into a bird wing structure as shown in fig. 7, and is composed of three breadth, and can be formed by splicing steel plates or casting. The bridge rubber spring and the middle rubber spring form a two-stage series connection relation, and the total height dimension is not additionally increased by the series connection relation, so that the whole structure of the bridge rubber spring is very compact.
In the embodiment of the invention, the balance swing arm can swing relative to the automobile body, and the swing freedom degree is realized by two modes: the first way is realized by the twisting deformation of the middle rubber spring; the second way is achieved by the swivel sleeve, bearing, swivel shaft through the assembly relationship shown in fig. 9.
Referring to fig. 8 and 9, in the embodiment of the present invention, a through hole for connecting the rotation shaft 80 is provided in the second fixing portion 102; a bearing 801 is arranged in the rotating shaft 80, and a rotating shaft sleeve 802 is sleeved on the outer side of the rotating shaft 80; the outer side of the rotating sleeve 802 is provided with a middle rubber spring support 201 for connecting the middle rubber spring 20.
In some vehicles with good road conditions, the balance swing arm does not need to have too large swing amplitude, so that the rotary assembly mechanism shown in fig. 8 and 9 can be completely omitted, and the vehicle is simplified into a simple structure shown in fig. 10, and only one metal connecting piece is required to be welded with the frame connecting bracket into a whole.
In the embodiment of the invention, the middle rubber spring support 201 comprises a clamping plate 211 provided with a circular groove, the clamping plate 211 is sleeved on the outer side of the rotary shaft sleeve 802, two sides of the clamping plate 211 are provided with fixing plates 212 used for being connected with the middle rubber spring 20, and the fixing plates 212 are provided with mounting screw holes.
Referring to fig. 11 and 12, the rubber spring 40 on the bridge includes a top flange plate 401, a bottom flange plate 402, a coil spring 403 and a rubber block 404, the coil spring 403 is sleeved outside the rubber block 404, one end of the coil spring 403 is connected with the top flange plate 401, and the other end of the coil spring 403 is connected with the bottom flange plate 402.
Wherein the bridge rubber spring 40 adopts a composite structure of metal and rubber vulcanized into a whole. The upper and lower metal plates are used as the connecting surfaces, and the middle of the rubber body can be coated with the spiral spring.
In the embodiment of the invention, the frame connecting bracket 10 is connected with the automobile girder 60 through bolts or rivets, the frame connecting bracket 10 is welded or connected with the rotating shaft 80 through bolts, the rubber spring on the bridge is respectively arranged on each side of each axle, the bottom flange plate of the rubber spring on the bridge is provided with a bolt connecting hole, and the rubber spring on the bridge is connected with the mounting surface on the axle shell through bolts; the impact from the road surface is first transferred to the spring via the tire and axle, resulting in the first level of most direct cushioning.
The top flange plate of the bridge upper rubber spring 40 is also provided with a bolt connecting hole, and is connected with one side of the balance swing arm through a bolt; after the primary spring absorbs part of impact energy, the rest impact force is transmitted to the balance swing arm.
The balance swing arm is not rigidly connected with the automobile girder, a middle rubber spring is also arranged in the middle of the balance swing arm in an entrained manner, and the middle rubber spring absorbs the residual impact force transmitted by the balance swing arm for the second time; the buffer of the two-stage rubber spring is used for absorbing energy, so that the impact of the road surface on the vehicle body is reduced.
The balance swing arm can swing relative to the automobile body, and the swinging freedom degree is realized by two modes: the first way is realized by the distortion of the middle rubber spring; the second mode is realized by an assembly of the rotating shaft sleeve, the bearing and the rotating shaft. The free swing of the balance swing arm is very important for the chassis of the automobile, the driving force is lowered when the automobile wheels are emptied, and meanwhile, the axle load transfer is concentrated to local wheels and axles, so that the phenomenon of wheel emptying can be effectively avoided by the balance suspension, and when a certain wheel encounters a raised obstacle and lifts upwards, the adjacent wheels on the same side are pressed down by the balance swing arm and cannot be emptied; similarly, when a certain wheel meets a concave road surface, the wheels adjacent to the same side are forced to lift upwards due to the fact that the load on the bridge suddenly increases, the wheels above the pits are pressed downwards to contact the concave road surface through the swing of the balance swing arm, and the phenomenon that the wheels are emptied is avoided.
The articulated joint at one end of the thrust rod is arranged at the lower side of the axle housing, the articulated joint at the other end of the thrust rod is arranged at the lower side of the balance swing arm, the balance swing arm can swing in the direction perpendicular to the road surface, and the freedom degree of other spaces is restrained; the thrust rod rigidly transmits driving force and braking force on one hand, and constrains the motion track of the axle relative to the vehicle body on the other hand, so that the axle can only move in a reasonable calculation range, and motion interference of the transmission shaft and interference of the axle and the vehicle body are avoided.
The balance swing arm and the rubber spring on the axle work together to provide motion constraint for the axle, and the constraint and the thrust rod work together to ensure the final motion range of the axle.
The balance swing arm and the frame connecting bracket can be formed by bending and welding steel plates, so that small-batch and even single-piece personalized manufacturing is feasible; all parts do not require the investment of complex dies or the complex machining operations.
The invention adopts the composite rubber as the elastic element, and compared with the leaf spring suspension, the torsion bar spring, the air spring, the hydro-pneumatic spring and the spiral spring, the rubber spring has light weight, low manufacturing cost and no maintenance; the comprehensive elastic characteristics of the rubber spring in the expansion direction, the torsion direction and the bending direction are not possessed by other types of springs; the composite rubber piece spring is adopted as an elastic element, so that the comfort of the composite rubber piece spring is superior to that of the steel plate spring suspension which is most widely used at present; the rubber spring has the capability of elastic deformation and elastic recovery in a plurality of degrees of freedom directions in space, so that the structure of the balance mechanism is simplified, and the number of thrust rods is reduced; the whole structure of the suspension is simple, the weight is light, and the maintenance is convenient; the small batch production and even single piece production can be realized without the need of investment of mould cost; the sizes of part parts are changed, so that the vehicle types with different loading qualities can be matched, and the research and development period of a new vehicle type is shortened; the novel vehicle type with different wheelbases can be quickly connected with the vehicle frame of the shaped chassis so as to be quickly derived; other forms of balanced suspension on the vehicle in use can be replaced directly without the need to replace the vehicle frame.
The rubber spring on the bridge needs to have enough compression or extension in a limited height range to realize the best impact energy absorption effect, and a structural composite material structure formed by vulcanizing the spiral spring and the rubber block into a whole is preferentially adopted.
As shown in fig. 13, the middle arm of the thrust rod is in a curve shape, so as to avoid interference with the balance swing arm on the movement track.
Referring to fig. 14, in the embodiment of the present invention, a connection pad 701 is provided on an automobile axle 70, the connection pad 701 includes a first connection block 711 connected to an on-axle rubber spring 40 and a second connection block 712 connected to a thrust rod 50, a second connection block 712 is provided at the bottom of the first connection block 711, and the first connection block 711 and the second connection block 712 are integrally formed and connected to the automobile axle 70. The rubber spring on the bridge and the thrust rod are simultaneously connected with the axle housing, and the axle housing is provided with corresponding bolt connecting holes.
The automobile rubber balance suspension provided by the invention is of an independent modularized design, and the sizes of specific parts can be adjusted according to tonnage levels and axle load distribution sizes of different vehicles, so that a series of products can be formed. The balanced suspension can replace the middle-rear axle balanced suspension with the most widely used 6x4 chassis at present, and can be applied to special vehicles with smaller output and strong individuation, such as mining vehicles, military off-road vehicles, oilfield and deep forest operation vehicles.
The present invention has been described in detail above, but the present invention is not limited to the above-described embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention. Many other changes and modifications may be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited to the specific embodiments, but only by the scope of the appended claims.
Claims (9)
1. A two-stage series rubber spring balanced suspension comprising:
the frame is connected with the bracket, the middle rubber spring, the balance swing arm, the rubber spring on the bridge and the thrust rod;
the frame connecting bracket comprises a first fixing part, a second fixing part and a third fixing part, wherein the first fixing part and the third fixing part are vertically connected with the second fixing part, a first mounting hole for being connected with an automobile girder is formed in the first fixing part and the third fixing part, a second fixing hole for being connected with a balance swing arm is formed in the second fixing part, a middle rubber spring support for being connected with a middle rubber spring is arranged in the second fixing part, and the middle rubber spring is connected with the balance swing arm;
the balance swing arm comprises a first groove, a first installation plane and a second installation plane, the first installation plane and the second installation plane are connected with the opening of the first groove, the bottoms of the first installation plane and the second installation plane are connected with a rubber spring on a bridge, and the balance swing arm is connected with an automobile axle through the rubber spring on the bridge; the bottom outside the first groove of the balance swing arm is connected with a hinge joint of a thrust rod, and the thrust rod is connected with an automobile axle.
2. The two-stage series rubber spring balanced suspension according to claim 1 wherein the second fixing portion is provided with a through hole for connecting a rotation shaft; a bearing is arranged in the rotating shaft, and a rotating shaft sleeve is sleeved on the outer side of the rotating shaft; the outside of the rotating shaft sleeve is provided with a middle rubber spring support used for being connected with a middle rubber spring.
3. The two-stage series rubber spring balanced suspension according to claim 1, wherein a connecting base plate is arranged on the automobile axle and comprises a first connecting block connected with the rubber spring on the axle and a second connecting block connected with the thrust rod, the second connecting block is arranged at the bottom of the first connecting block, and the first connecting block and the second connecting block are of an integrated structure and are connected with the automobile axle.
4. The two-stage serial rubber spring balance suspension according to claim 1, wherein the middle rubber spring support comprises a clamping plate provided with a circular groove, the clamping plate is sleeved on the outer side of the rotary shaft sleeve, two sides of the clamping plate are provided with fixing plates used for being connected with the middle rubber spring, and the fixing plates are provided with mounting screw holes.
5. The two-stage series rubber spring balance suspension according to claim 1, wherein the two sets of the middle rubber springs form an A-shaped structure, the upper flanges of the two sets of the middle rubber springs are connected with the fixing plate, and the lower flanges of the two sets of the middle rubber springs are connected with two sides of the first groove of the balance swing arm.
6. The two-stage series rubber spring balance suspension according to claim 1, wherein the middle rubber spring is in a U-shaped structural arrangement form, through holes are formed in the U-shaped rubber spring, an upper flange of the U-shaped rubber spring is in fit connection with the fixing plate, and a lower flange of the U-shaped rubber spring is in fit connection with the first groove.
7. The two-stage series rubber spring balance suspension according to claim 1, wherein the rubber spring on the bridge comprises a top flange plate, a bottom flange plate, a spiral spring and a rubber block, the spiral spring is arranged on the outer side of the rubber block, the rubber block and the spiral spring are manufactured in a vulcanization integrated mode, one end of the rubber block is connected with the top flange plate, and the other end of the rubber block is connected with the bottom flange plate.
8. The two-stage series rubber spring balanced suspension according to claim 1 wherein the balanced swing arm and the frame coupling bracket are formed by steel plate bending and welding.
9. The two-stage series rubber spring balanced suspension according to claim 1 wherein the frame coupling bracket is bolted or bolted to the vehicle frame rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210153667.XA CN114407600B (en) | 2022-02-19 | 2022-02-19 | Two-stage series rubber spring balanced suspension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210153667.XA CN114407600B (en) | 2022-02-19 | 2022-02-19 | Two-stage series rubber spring balanced suspension |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114407600A CN114407600A (en) | 2022-04-29 |
| CN114407600B true CN114407600B (en) | 2023-06-23 |
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| CN202210153667.XA Active CN114407600B (en) | 2022-02-19 | 2022-02-19 | Two-stage series rubber spring balanced suspension |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3936073A (en) * | 1975-04-07 | 1976-02-03 | Hickman Developments, Inc. | Tandem axle vehicle spring suspension |
| GB2069424A (en) * | 1980-02-14 | 1981-08-26 | Erf Ltd | Tandem axle suspension |
| US4633564A (en) * | 1984-03-29 | 1987-01-06 | Sauber Charles J | Torsion bar stabilizer for a vehicle and method for mounting the stabilizer on the vehicle frame |
| DE4427172A1 (en) * | 1994-08-01 | 1996-02-15 | Daimler Benz Ag | Wheel suspension, esp. rear axle suspension for vehicle |
| JPH10287114A (en) * | 1997-04-18 | 1998-10-27 | Mitsubishi Motors Corp | Equalizer beam structure for rubber suspension |
| CN2905521Y (en) * | 2006-02-14 | 2007-05-30 | 中国重型汽车集团有限公司 | Reinforced type self-unloading hind hanger bracket |
| CN201261372Y (en) * | 2008-06-27 | 2009-06-24 | 精功镇江汽车制造有限公司 | Slide board type plate spring of commercial vehicle and guide spring apparatus |
| CN201951201U (en) * | 2011-03-18 | 2011-08-31 | 廊坊富邦德石油机械制造有限公司 | Three-axle swinging arm type balance suspension system |
| CN108790665A (en) * | 2018-06-19 | 2018-11-13 | 冯新平 | A kind of rubber vehicle suspension device with variable rigidity property |
| CN108909400A (en) * | 2018-07-03 | 2018-11-30 | 太原科技大学 | A kind of twin-stage vibration isolation equalizing type of suspension of oil pocket interconnection |
| CN111152614A (en) * | 2020-01-21 | 2020-05-15 | 中国重汽集团济南动力有限公司 | Double-stage vibration reduction high-adaptability balanced suspension system |
| CN213676291U (en) * | 2020-06-09 | 2021-07-13 | 北京驰创达空气悬架有限公司 | Front air suspension of ferry vehicle |
-
2022
- 2022-02-19 CN CN202210153667.XA patent/CN114407600B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3936073A (en) * | 1975-04-07 | 1976-02-03 | Hickman Developments, Inc. | Tandem axle vehicle spring suspension |
| GB2069424A (en) * | 1980-02-14 | 1981-08-26 | Erf Ltd | Tandem axle suspension |
| US4633564A (en) * | 1984-03-29 | 1987-01-06 | Sauber Charles J | Torsion bar stabilizer for a vehicle and method for mounting the stabilizer on the vehicle frame |
| DE4427172A1 (en) * | 1994-08-01 | 1996-02-15 | Daimler Benz Ag | Wheel suspension, esp. rear axle suspension for vehicle |
| JPH10287114A (en) * | 1997-04-18 | 1998-10-27 | Mitsubishi Motors Corp | Equalizer beam structure for rubber suspension |
| CN2905521Y (en) * | 2006-02-14 | 2007-05-30 | 中国重型汽车集团有限公司 | Reinforced type self-unloading hind hanger bracket |
| CN201261372Y (en) * | 2008-06-27 | 2009-06-24 | 精功镇江汽车制造有限公司 | Slide board type plate spring of commercial vehicle and guide spring apparatus |
| CN201951201U (en) * | 2011-03-18 | 2011-08-31 | 廊坊富邦德石油机械制造有限公司 | Three-axle swinging arm type balance suspension system |
| CN108790665A (en) * | 2018-06-19 | 2018-11-13 | 冯新平 | A kind of rubber vehicle suspension device with variable rigidity property |
| CN108909400A (en) * | 2018-07-03 | 2018-11-30 | 太原科技大学 | A kind of twin-stage vibration isolation equalizing type of suspension of oil pocket interconnection |
| CN111152614A (en) * | 2020-01-21 | 2020-05-15 | 中国重汽集团济南动力有限公司 | Double-stage vibration reduction high-adaptability balanced suspension system |
| CN213676291U (en) * | 2020-06-09 | 2021-07-13 | 北京驰创达空气悬架有限公司 | Front air suspension of ferry vehicle |
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|---|---|
| CN114407600A (en) | 2022-04-29 |
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