CN202319800U - Auxiliary support device, oil/gas suspension system and multi-axis vehicle - Google Patents
Auxiliary support device, oil/gas suspension system and multi-axis vehicle Download PDFInfo
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- CN202319800U CN202319800U CN2011204395717U CN201120439571U CN202319800U CN 202319800 U CN202319800 U CN 202319800U CN 2011204395717 U CN2011204395717 U CN 2011204395717U CN 201120439571 U CN201120439571 U CN 201120439571U CN 202319800 U CN202319800 U CN 202319800U
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Abstract
The utility model discloses an auxiliary support device which is used for assisting in supporting a multi-axis vehicle. The auxiliary support device comprises a support frame, an auxiliary supporting oil cylinder, a bearing wheel and an auxiliary hydraulic control module, wherein the support frame is arranged on a vehicle body of the multi-axle vehicle; the auxiliary supporting oil cylinder is arranged on the support frame; the bearing wheel is connected with the auxiliary supporting oil cylinder; the auxiliary hydraulic control module is connected with the auxiliary supporting oil cylinder, so that the auxiliary supporting oil cylinder carries out an oil-cylinder fore-and-aft motion so as to change the ground contact state of the bearing wheel, thereby achieving an auxiliary supporting effect on the multi-axis vehicle; and the distance between a point (contacted with the ground) of the bearing wheel and a centre line of the multi-axle vehicle is greater than the distance between a point (contacted with the ground) of a wheel of the multi-axle vehicle and the centre line of the multi-axle vehicle. The utility model also discloses an oil/gas suspension system and a multi-axis vehicle. According to the embodiment of the utility model, the lateral stability of the multi-axis vehicle traveling in a construction site can be effectively increased.
Description
Technical field
The utility model relates to a kind of auxiliary support apparatus, also relates to a kind of oleo-pneumatic suspension system and a kind of multiple-axle vehicle with this oleo-pneumatic suspension system with this auxiliary supportive device.
Background technology
The oleo-pneumatic suspension system be with fluid transmit pressure, with high-pressure inert gas (being generally nitrogen) as elastic medium, integrate the new type of passive suspension of elastic element and shock absorber function.The oleo-pneumatic suspension system applies has good damping performance, ride comfort and vehicle run stability in engineering truck, and can realize the adjustability of bodywork height.
The oleo-pneumatic suspension system is mostly adopted on the multiaxis chassis, full ground of existing multiple-axle vehicle such as hoisting crane.Fig. 1 has shown the hydraulic principle scheme drawing of a kind of oleo-pneumatic suspension system 100 of prior art.This oleo-pneumatic suspension system 100 is used for four bridge multiple-axle vehicle, and it comprises bridge left side hanging oil cylinder 101, the right hanging oil cylinder 102 of a bridge, two bridges left side hanging oil cylinder 103, the right hanging oil cylinder 104 of two bridges, three bridges left side hanging oil cylinder 105, the right hanging oil cylinder 106 of three bridges, four bridges left side hanging oil cylinder 107 and the right hanging oil cylinder 108 of four bridges.The car load axle load of multiple-axle vehicle divides into groups to be divided into into two groups: one, two bridges are first group, and three, four bridges are second group.
Because receive road traveling to force the restriction of standard, hoisting crane vehicle width can not design too widely.And when going on construction ground, big and center of gravity is also high during the duty ratio road running on the multiaxis chassis in order to prevent to dismantle the trouble of truss arm because the workyard when going the truss arm install the back and just no longer pull down, just the truss arm is folded up.Because it is higher that the hoisting crane center of gravity of truss arm is installed, hoisting crane vehicle side stability is difficult to guarantee when go in the workyard, is easier to cause rollover.If always dismantle the truss arm when going in the place, can influence working rate on the one hand, can influence the advantage of multiaxis chassis, full ground cross-country traveling ability, fast running on the other hand.
In sum, a kind of auxiliary support apparatus, oleo-pneumatic suspension system and multiple-axle vehicle need be provided, the side stability when going with effective increase multiple-axle vehicle workyard.
Summary of the invention
The technical matters that the utility model mainly solves provides a kind of auxiliary support apparatus, oleo-pneumatic suspension system and multiple-axle vehicle, the side stability in the time of can effectively increasing the multiple-axle vehicle workyard and go.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of auxiliary support apparatus is provided, is used for the supplemental support multiple-axle vehicle, it comprises bracing frame, supplemental support oil cylinder, load-supporting wheel and auxiliary hydraulic pressure control die set.Bracing frame is installed on the vehicle body of multiple-axle vehicle.The supplemental support oil cylinder is located on the bracing frame.Load-supporting wheel is connected with the supplemental support oil cylinder.The auxiliary hydraulic pressure control die set is connected with the supplemental support oil cylinder, makes the supplemental support oil cylinder do the oil cylinder fore and aft motion, to change the ground contact state of load-supporting wheel, realizes the supplemental support to multiple-axle vehicle.The point that the point that load-supporting wheel contacts with ground contacts with ground greater than the wheel of multiple-axle vehicle to the distance between center line of multiple-axle vehicle is to the distance between center line of multiple-axle vehicle.
Wherein, the auxiliary hydraulic pressure control die set is connected with the supplemental support oil cylinder through the hydraulic oil circuit, and the auxiliary hydraulic pressure control die set comprises a plurality of electromagnetic valves of being located on the hydraulic oil circuit.
Wherein, bracing frame is removably installed on the vehicle body to insert-pull pin mechanism, bolt or pipe link through connection lengthwise.
Wherein, auxiliary support apparatus comprises assists the stretching, extension oil cylinder, and the auxiliary oil cylinder that stretches is connected with bracing frame with vehicle body, and assists the stretching, extension oil cylinder to be connected with the auxiliary hydraulic pressure control die set, is used to realize the fore and aft motion of bracing frame along the vehicle body horizontal direction.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of oleo-pneumatic suspension system is provided, is used for multiple-axle vehicle, it comprises auxiliary support apparatus and main fluid control module.Auxiliary support apparatus comprises: left bracing frame and right bracing frame, left redundant support cylinder and right redundant support cylinder and left load-supporting wheel and right load-supporting wheel.Left side bracing frame and right bracing frame are installed on the vehicle body left side and the right side of multiple-axle vehicle respectively.Left redundant support cylinder and right redundant support cylinder have rod chamber and rodless cavity respectively, and are located at respectively on left bracing frame and the right bracing frame.The left redundant support cylinder is connected with left load-supporting wheel, and the right redundant support cylinder is connected with right load-supporting wheel.Main fluid control module is connected with the right redundant support cylinder with the left redundant support cylinder, makes left and right supplemental support oil cylinder do the oil cylinder fore and aft motion, to change the ground contact state of left and right load-supporting wheel.The point that the point that left and right load-supporting wheel contacts with ground contacts with ground greater than the left and right wheel of multiple-axle vehicle respectively to the distance between center line of multiple-axle vehicle is to the distance between center line of multiple-axle vehicle.
Wherein, the oleo-pneumatic suspension system is at least two bridge oleo-pneumatic suspension systems.Main fluid control module comprises: first change-over valve, second change-over valve and a plurality of electromagnetic valve.Main fluid control module makes the auxiliary support apparatus relevant work in axle load group mode and independent telescope pattern through the operating state of first, second change-over valve of control and a plurality of electromagnetic valves.
Wherein, a plurality of electromagnetic valves comprise first electromagnetic valve, second electromagnetic valve, the 3rd electromagnetic valve, the 4th electromagnetic valve, the 5th electromagnetic valve, the 6th electromagnetic valve, the 7th electromagnetic valve and the 8th electromagnetic valve.First change-over valve is the two-bit triplet electromagnetic valve.Second change-over valve is a three position four-way electromagnetic valve.First electromagnetic valve is connected between the rod chamber of the right hanging oil cylinder of rod chamber and three bridges of right redundant support cylinder.Second electromagnetic valve is connected between the rodless cavity of the right hanging oil cylinder of rodless cavity and three bridges of right redundant support cylinder.The 3rd electromagnetic valve is connected between second actuator port of rodless cavity and second change-over valve of right redundant support cylinder.The 4th electromagnetic valve is connected between first actuator port of rod chamber and second change-over valve of right redundant support cylinder.The 5th electromagnetic valve is connected between first actuator port of rodless cavity and second change-over valve of left redundant support cylinder.The 6th electromagnetic valve is connected between second actuator port of rod chamber and second change-over valve of left redundant support cylinder.The 7th electromagnetic valve is connected between the rod chamber of rod chamber and three bridges left side hanging oil cylinder of left redundant support cylinder.The 8th electromagnetic valve is connected between the rodless cavity of rodless cavity and three bridges left side hanging oil cylinder of left redundant support cylinder.
Wherein, The oleo-pneumatic suspension system is four bridge oleo-pneumatic suspension systems, comprises bridge left side hanging oil cylinder, the right hanging oil cylinder of a bridge, two bridges left side hanging oil cylinder, the right hanging oil cylinder of two bridges, three bridges left side hanging oil cylinder, the right hanging oil cylinder of three bridges, four bridges left side hanging oil cylinder and the right hanging oil cylinder of four bridges.In the axle load group mode; First electromagnetic valve, second electromagnetic valve, the 7th electromagnetic valve and the 8th electromagnetic valve get; The 3rd electromagnetic valve, the 4th electromagnetic valve, the 5th electromagnetic valve and the 6th electromagnetic valve must not; The axle load of whole multiple-axle vehicle is divided into two groups, and left and right hanging oil cylinder of a bridge and the left and right hanging oil cylinder of two bridges are first group, and left and right hanging oil cylinder of three bridges and the left and right hanging oil cylinder of four bridges are second group together with left and right supplemental support oil cylinder.
Wherein, the independent telescope pattern comprises that the left redundant support cylinder stretches and contract and mode of operation that the right redundant support cylinder is stretched and contracted.In the left redundant support cylinder is stretched; First change-over valve, the 5th electromagnetic valve and the 6th electromagnetic valve get; First electromagnetic valve, second electromagnetic valve, the 3rd electromagnetic valve, the 4th electromagnetic valve, the 7th electromagnetic valve and the 8th electromagnetic valve must not; Second change-over valve switches makes its first actuator port be connected to the pressure hydraulic fluid port, and second actuator port is connected to return opening.In the left redundant support cylinder contracts; First change-over valve, the 5th electromagnetic valve and the 6th electromagnetic valve get; First electromagnetic valve, second electromagnetic valve, the 3rd electromagnetic valve, the 4th electromagnetic valve, the 7th electromagnetic valve and the 8th electromagnetic valve must not; Second change-over valve switches makes its first actuator port be connected to return opening, and second actuator port is connected to the pressure hydraulic fluid port.In the right redundant support cylinder is stretched; First change-over valve, the 3rd electromagnetic valve and the 4th electromagnetic valve get; First electromagnetic valve, second electromagnetic valve, the 5th electromagnetic valve, the 6th electromagnetic valve, the 7th electromagnetic valve and the 8th electromagnetic valve must not; Second change-over valve switches makes its first actuator port be connected to return opening, and second actuator port is connected to the pressure hydraulic fluid port.In the right redundant support cylinder contracts; First change-over valve, the 3rd electromagnetic valve and the 4th electromagnetic valve get; First electromagnetic valve, second electromagnetic valve, the 5th electromagnetic valve, the 6th electromagnetic valve, the 7th electromagnetic valve and the 8th electromagnetic valve must not; Second change-over valve switches makes its first actuator port be connected to the pressure hydraulic fluid port, and second actuator port is connected to return opening.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of multiple-axle vehicle are provided, and it comprises above-mentioned oleo-pneumatic suspension system.
The beneficial effect of the utility model is: the auxiliary support apparatus of the utility model, oleo-pneumatic suspension system and multiple-axle vehicle; Because the point that the point that contacts with ground of load-supporting wheel contacts with ground greater than the wheel of multiple-axle vehicle to the distance between center line of multiple-axle vehicle is to the distance between center line of multiple-axle vehicle; Strengthened the side stability of multiple-axle vehicle, the generation of rollover accident in the time of can effectively avoiding the multiple-axle vehicle workyard to go.
Description of drawings
In order to be illustrated more clearly in the technical scheme among the utility model embodiment; The accompanying drawing of required use is done to introduce simply in will describing embodiment below, and obviously, the accompanying drawing in describing below only is some embodiment of the utility model; For those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings, wherein:
Fig. 1 is the hydraulic principle scheme drawing of a kind of oleo-pneumatic suspension system of prior art;
Fig. 2 is the structural representation according to an embodiment of the utility model auxiliary support apparatus;
Fig. 3 is the hydraulic principle scheme drawing according to an embodiment of the utility model oleo-pneumatic suspension system; And
Fig. 4 is the local enlarged diagram of symbol W institute identified areas among Fig. 3.
The specific embodiment
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is a part of embodiment of the utility model, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making all other embodiment that obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
See also Fig. 2, it has shown the structural representation according to an embodiment of the utility model auxiliary support apparatus 10.Auxiliary support apparatus 10 comprises left bracing frame 11 and right bracing frame 12, left redundant support cylinder 13 and right redundant support cylinder 14, left load-supporting wheel 15 and right load-supporting wheel 16 and auxiliary hydraulic pressure control die set (figure does not show).
Left side bracing frame 11 and right bracing frame 12 are installed on vehicle body 1 left side and the right side of multiple-axle vehicle respectively, and be as shown in Figure 2, can bracing frame 11,12 be removably installed on the vehicle body 1 through tie bolt 17.In alternative, tie bolt 17 can replace with pipe link or adopt the vertical insert-pull pin mechanism of fluid control.Also can or the auxiliary oil cylinder that stretches be set on vehicle body 1 at bracing frame 11,12; The auxiliary oil cylinder that stretches is connected realization to the auxiliary fluid control that stretches oil cylinder with the auxiliary hydraulic pressure control die set, through the auxiliary fore and aft motion that stretches the flexible realization bracing frame 11,12 of oil cylinder along vehicle body 1 horizontal direction (symbol direction that L identifies).Can satisfy road traveling like this and force the requirement of standard body width.
Left redundant support cylinder 13 has rod chamber and rodless cavity respectively with right redundant support cylinder 14, and is located at respectively on left bracing frame 11 and the right bracing frame 12.Left redundant support cylinder 13 is connected with left load-supporting wheel 15, and right redundant support cylinder 14 is connected with right load-supporting wheel 16.The auxiliary hydraulic pressure control die set is connected with supplemental support oil cylinder 13,14 to realize the fluid control to it.
The auxiliary support apparatus 10 of present embodiment in the course of the work; Through the fluid control of auxiliary hydraulic pressure control die set to supplemental support oil cylinder 13,14; Make supplemental support oil cylinder 13,14 do the oil cylinder fore and aft motion; To change the ground contact state of load-supporting wheel 15,16 as required, such as contacting with ground or built on stilts.Bracing frame 11,12 width along the L direction suitably are set; Making point that point that load-supporting wheel 15,16 contacts with ground contacts with ground greater than the wheel of multiple-axle vehicle to the distance between center line of multiple-axle vehicle to the distance between center line of multiple-axle vehicle, also is bracing frame 11,12 extends multiple-axle vehicle along the L direction wheel.Persons skilled in the art combine mechanics principle to understand easily; Owing to increasing supplemental support point and prolonging the reason that supports the arm of force; The auxiliary support apparatus 10 of present embodiment can significantly strengthen the side stability of multiple-axle vehicle; Auxiliary support apparatus 10 also can be born certain load of multiple-axle vehicle simultaneously, has avoided other each axle load overweight.
Auxiliary hydraulic pressure control die set in the present embodiment can be connected with the main fluid control module of multiple-axle vehicle, also can be set to independent fluid control module.Hereinafter will combine Fig. 3 to introduce the working process of auxiliary hydraulic pressure control die set in detail, not detail here.
Fig. 3 is the hydraulic principle scheme drawing according to an embodiment of the utility model oleo-pneumatic suspension system 200.The oleo-pneumatic suspension system 200 of present embodiment is four bridge oleo-pneumatic suspension systems, comprises a bridge, two bridges, three bridges, four bridges, auxiliary support apparatus and main fluid control module.Concrete structure and Fig. 2 of auxiliary support apparatus are similar, do not repeat to introduce at this.One bridge comprises bridge left side hanging oil cylinder 201, the right hanging oil cylinder 202 of a bridge.Two bridges comprise two bridges left side hanging oil cylinder 203, the right hanging oil cylinder 204 of two bridges.Three bridges comprise three bridges left side hanging oil cylinder 205 and the right hanging oil cylinder 206 of three bridges.Four bridges comprise four bridges left side hanging oil cylinder 207 and the right hanging oil cylinder 208 of four bridges.
Please in the lump with reference to figure 3 and Fig. 4, Fig. 4 is the local enlarged diagram of symbol W institute identified areas among Fig. 3.Main fluid control module comprises main first change-over valve 213, second change-over valve 214, electromagnetic valve 221-228 and 231,232.First change-over valve 213 is the two-bit triplet electromagnetic valve, comprises pressure hydraulic fluid port E, the first actuator port F and the second actuator port G, and wherein pressure hydraulic fluid port E is connected with pressure oil-source P.Second change-over valve 214 is a three position four-way electromagnetic valve, comprises pressure hydraulic fluid port D, return opening C, the first actuator port A and the second actuator port B, and wherein, return opening C is connected with fuel tank T.
Introduce the position of electromagnetic valve 221-228 in the hydraulic oil circuit below.Electromagnetic valve 221 is connected between the rod chamber of the right hanging oil cylinder 206 of rod chamber and three bridges of right redundant support cylinder 212.Electromagnetic valve 222 is connected between the rodless cavity of the right hanging oil cylinder 206 of rodless cavity and three bridges of right redundant support cylinder 212.Electromagnetic valve 223 is connected between the second actuator port B of rodless cavity and second change-over valve 214 of right redundant support cylinder 212.Electromagnetic valve 224 is connected between the first actuator port A of rod chamber and second change-over valve 214 of right redundant support cylinder 212.Electromagnetic valve 225 is connected between the first actuator port A of rodless cavity and second change-over valve 214 of left redundant support cylinder 211.Electromagnetic valve 226 is connected between the second actuator port B of rod chamber and second change-over valve 214 of left redundant support cylinder 211.Electromagnetic valve 227 is connected between the rod chamber of rod chamber and three bridges left side hanging oil cylinder 205 of left redundant support cylinder 211.Electromagnetic valve 228 is connected between the rodless cavity of rodless cavity and three bridges left side hanging oil cylinder 205 of left redundant support cylinder 211.What need supplemental instruction is that electromagnetic valve 221 specifically is located between the rod chamber of hydraulic oil circuit point of connection J1 and the right hanging oil cylinder 206 of three bridges.Electromagnetic valve 222 specifically is located between the rodless cavity of hydraulic oil circuit point of connection J2 and the right hanging oil cylinder 206 of three bridges.Electromagnetic valve 227 specifically is located between the rod chamber of hydraulic oil circuit point of connection J4 and three bridges left side hanging oil cylinder 205.Electromagnetic valve 228 specifically is located between the rodless cavity of hydraulic oil circuit point of connection J3 and three bridges left side hanging oil cylinder 205.
Electromagnetic valve 231,232 is as shown in Figure 3 in the position in the hydraulic oil circuit, and those skilled in the art combines prior art to be readily appreciated that its catenation principle, is not described in detail at this.
The oleo-pneumatic suspension system 200 of present embodiment can realize two kinds of different working modes at least: axle load group mode and independent telescope pattern.
In the axle load group mode, the pressure hydraulic fluid port E of first change-over valve 213 and the first actuator port F hydraulic communication.Electromagnetic valve 221, electromagnetic valve 222, electromagnetic valve 227 and electromagnetic valve 228; Electromagnetic valve 223, electromagnetic valve 224, electromagnetic valve 225 and electromagnetic valve 226 must not; The axle load of whole multiple-axle vehicle is divided into two groups, and a bridge and two bridges are first group, and three bridges, four bridges and auxiliary support apparatus are second group.Here " electromagnetic valve gets " is meant that the hydraulic oil circuit at its place of solenoid control is a conducting state.In this pattern, can realize the various patterns with the similar oleo-pneumatic suspension of prior art, as: resilient mounting, rigidity locking, axle load balance, car load raise, car load reduces and car load leveling etc.In instantiation; When electromagnetic valve 232 when electric; Make the rod chamber of left hanging oil cylinder 207 and the rodless cavity hydraulic communication of right hanging oil cylinder 208, the rodless cavity of left hanging oil cylinder 207 and the rod chamber hydraulic communication of right hanging oil cylinder 208 can realize resilient mounting simultaneously.All must not when electricity when electromagnetic valve 231,232, make left hanging oil cylinder 207 not be connected with right hanging oil cylinder 208, can realize the rigidity locking.When electromagnetic valve 231,232 all when electric, make and rod chamber and the rodless cavity hydraulic communication mutually of left hanging oil cylinder 207 and right hanging oil cylinder 208 can realize the axle load balance.
Introduce the independent telescope mode of operation of oleo-pneumatic suspension system 200 below.
The independent telescope pattern comprises that left redundant support cylinder 211 stretches and contract and mode of operation that right redundant support cylinder 212 is stretched and contracted.In left redundant support cylinder 211 is stretched; First change-over valve 213, electromagnetic valve 225 and electromagnetic valve 226; Electromagnetic valve 221-224 and 227-228 must not be electric, and second change-over valve 214 switches makes its first actuator port A be connected to pressure hydraulic fluid port D, and the second actuator port B is connected to return opening C.In left redundant support cylinder 211 contracts; First change-over valve 213, electromagnetic valve 225 and electromagnetic valve 226; Electromagnetic valve 221-224 and 227-228 must not be electric, and second change-over valve 214 switches makes its first actuator port A be connected to return opening C, and the second actuator port B is connected to pressure hydraulic fluid port D.In right redundant support cylinder 212 is stretched; First change-over valve 213, electromagnetic valve 223 and electromagnetic valve 224; Electromagnetic valve 221-222 and 225-228 must not be electric, and second change-over valve 214 switches makes its first actuator port A be connected to return opening C, and the second actuator port B is connected to pressure hydraulic fluid port D.In right redundant support cylinder 212 contracts; First change-over valve 213, electromagnetic valve 223 and electromagnetic valve 224; Electromagnetic valve 221-222 and 225-228 must not be electric, and second change-over valve 214 switches makes its first actuator port A be connected to pressure hydraulic fluid port D, and the second actuator port B is connected to return opening C." first change-over valve 213 gets " described here is meant the state of the pressure hydraulic fluid port E and the second actuator port G hydraulic communication.
The telescopic adjustment of supplemental support oil cylinder 211,212 is accomplished by manual operation separately in the independent telescope pattern, is independent of the operation of a bridge hanging oil cylinder, two bridge hanging oil cylinder, three bridge hanging oil cylinder and four bridge hanging oil cylinder.There is recessed ground, hole by hand the supplemental support oil cylinder to be stretched out when running into, can prevents rollover with the level that guarantees vehicle by hand with the withdrawal of supplemental support oil cylinder when running into the ground that protrusion is arranged.
The utility model also provides a kind of multiple-axle vehicle, and it adopts above-mentioned oleo-pneumatic suspension system.
The multiple-axle vehicle of the utility model are owing to adopted auxiliary support apparatus; But this auxiliary support apparatus independent telescope also can be combined into one group with back three, four bridges and realize various oleo-pneumatic suspension patterns, the generation of rollover accident in the time of therefore can avoiding multiple-axle vehicle to go on construction ground effectively.Simultaneously, auxiliary support apparatus also can be born certain load of multiple-axle vehicle, has avoided each axle load overweight.
In addition, support wheel mentioned above can be steel wheel, also can take turns such as tire for other proper supporting.Preceding text embodiment is illustrated through quadr--axle vehicle, it is pointed out that the multiple-axle vehicle that can as required the auxiliary support apparatus of the utility model be used for other in the practice, such as diaxon, three, five and six-axle car etc.In addition, auxiliary support apparatus also can carry out fluid control as one group with a bridge, two bridges of multiple-axle vehicle, also can be made as an independent bridge and independently control.Preferably auxiliary support apparatus is arranged near the midway location of jumping of multiple-axle vehicle, so that effectively share load.
The above is merely the embodiment of the utility model; Be not thus the restriction the utility model claim; Every equivalent structure or equivalent flow process conversion that utilizes the utility model specification sheets and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical field, all in like manner be included in the scope of patent protection of the utility model.
Claims (10)
1. an auxiliary support apparatus is used for the supplemental support multiple-axle vehicle, it is characterized in that, said auxiliary support apparatus comprises:
Bracing frame is installed on the vehicle body of said multiple-axle vehicle;
The supplemental support oil cylinder is located on the support frame as described above;
Load-supporting wheel is connected with said supplemental support oil cylinder;
The auxiliary hydraulic pressure control die set is connected with said supplemental support oil cylinder, makes said supplemental support oil cylinder do the oil cylinder fore and aft motion, to change the ground contact state of said load-supporting wheel, realizes the supplemental support to said multiple-axle vehicle;
Wherein, the point that contacts with ground greater than the wheel of said multiple-axle vehicle to the distance between center line of said multiple-axle vehicle of the point that contacts with ground of said load-supporting wheel arrives the distance between center line of said multiple-axle vehicle.
2. auxiliary support apparatus according to claim 1; It is characterized in that; Said auxiliary hydraulic pressure control die set is connected with said supplemental support oil cylinder through the hydraulic oil circuit, and said auxiliary hydraulic pressure control die set comprises a plurality of electromagnetic valves of being located on the said hydraulic oil circuit.
3. auxiliary support apparatus according to claim 1 is characterized in that, support frame as described above is removably installed on the said vehicle body through vertical insert-pull pin mechanism, tie bolt or pipe link.
4. auxiliary support apparatus according to claim 1; It is characterized in that; Said auxiliary support apparatus comprises the auxiliary oil cylinder that stretches; Said auxiliary stretching, extension oil cylinder is connected with support frame as described above with said vehicle body, and said auxiliary stretching, extension oil cylinder is connected with said auxiliary hydraulic pressure control die set, is used to realize the fore and aft motion of support frame as described above along said vehicle body horizontal direction.
5. an oleo-pneumatic suspension system is used for multiple-axle vehicle, it is characterized in that, said oleo-pneumatic suspension system comprises:
Auxiliary support apparatus, said auxiliary support apparatus comprises:
A left side bracing frame and right bracing frame are installed on the vehicle body left side and the right side of said multiple-axle vehicle respectively;
Left redundant support cylinder and right redundant support cylinder have rod chamber and rodless cavity respectively, and are located at respectively on said left bracing frame and the said right bracing frame;
Left side load-supporting wheel and right load-supporting wheel, said left redundant support cylinder is connected with said left load-supporting wheel, and said right redundant support cylinder is connected with said right load-supporting wheel;
Main fluid control module; Be connected with the right redundant support cylinder with said left redundant support cylinder; Make said left redundant support cylinder and said right redundant support cylinder do the oil cylinder fore and aft motion, to change the ground contact state of said left load-supporting wheel, said right load-supporting wheel;
Wherein, the point that contacts with ground greater than the left wheel of said multiple-axle vehicle, right wheel respectively to the distance between center line of said multiple-axle vehicle of the point that contacts with ground of said left load-supporting wheel, said right load-supporting wheel arrives the distance between center line of said multiple-axle vehicle.
6. oleo-pneumatic suspension according to claim 5 system is characterized in that,
Said oleo-pneumatic suspension system is at least two bridge oleo-pneumatic suspension systems;
Said main fluid control module comprises first change-over valve, second change-over valve and a plurality of electromagnetic valve;
Wherein, said main fluid control module makes said auxiliary support apparatus relevant work in axle load group mode and independent telescope pattern through the operating state of control said first change-over valve, second change-over valve and said a plurality of electromagnetic valves.
7. oleo-pneumatic suspension according to claim 6 system is characterized in that,
Said a plurality of electromagnetic valve comprises first electromagnetic valve, second electromagnetic valve, the 3rd electromagnetic valve, the 4th electromagnetic valve, the 5th electromagnetic valve, the 6th electromagnetic valve, the 7th electromagnetic valve and the 8th electromagnetic valve;
Said first change-over valve is the two-bit triplet electromagnetic valve;
Said second change-over valve is a three position four-way electromagnetic valve;
Wherein, said first electromagnetic valve is connected between the rod chamber of the right hanging oil cylinder of rod chamber and said three bridges of said right redundant support cylinder;
Said second electromagnetic valve is connected between the rodless cavity of the right hanging oil cylinder of rodless cavity and said three bridges of said right redundant support cylinder;
Said the 3rd electromagnetic valve is connected between second actuator port of rodless cavity and said second change-over valve of said right redundant support cylinder;
Said the 4th electromagnetic valve is connected between first actuator port of rod chamber and said second change-over valve of said right redundant support cylinder;
Said the 5th electromagnetic valve is connected between first actuator port of rodless cavity and said second change-over valve of said left redundant support cylinder;
Said the 6th electromagnetic valve is connected between second actuator port of rod chamber and said second change-over valve of said left redundant support cylinder;
Said the 7th electromagnetic valve is connected between the rod chamber of rod chamber and said three bridges left side hanging oil cylinder of said left redundant support cylinder;
Said the 8th electromagnetic valve is connected between the rodless cavity of rodless cavity and said three bridges left side hanging oil cylinder of said left redundant support cylinder.
8. oleo-pneumatic suspension according to claim 7 system is characterized in that,
Said oleo-pneumatic suspension system is four bridge oleo-pneumatic suspension systems, comprises bridge left side hanging oil cylinder, the right hanging oil cylinder of a bridge, two bridges left side hanging oil cylinder, the right hanging oil cylinder of two bridges, three bridges left side hanging oil cylinder, the right hanging oil cylinder of three bridges, four bridges left side hanging oil cylinder and the right hanging oil cylinder of four bridges;
Wherein, In said axle load group mode; Said first electromagnetic valve, said second electromagnetic valve, said seven electromagnetic valves and said the 8th electromagnetic valve get; Said the 3rd electromagnetic valve, said the 4th electromagnetic valve, said the 5th electromagnetic valve and said the 6th electromagnetic valve must not; The axle load of said multiple-axle vehicle is divided into two groups; Said bridge left side hanging oil cylinder, the right hanging oil cylinder of a said bridge, said two bridges left side hanging oil cylinder and the right hanging oil cylinder of said two bridges are first group, and said three bridges left side hanging oil cylinder, the right hanging oil cylinder of said three bridges, said four bridges left side hanging oil cylinder, said four bridges left side hanging oil cylinder, said left redundant support cylinder and said right redundant support cylinder are second group.
9. oleo-pneumatic suspension according to claim 7 system is characterized in that said independent telescope pattern comprises:
Said left redundant support cylinder is stretched; Wherein, Said first change-over valve, said the 5th electromagnetic valve and said the 6th electromagnetic valve get; Said first electromagnetic valve, said second electromagnetic valve, said the 3rd electromagnetic valve, said the 4th electromagnetic valve, the 7th electromagnetic valve and the 8th electromagnetic valve must not be electric, and said second change-over valve switches makes its first actuator port be connected to the pressure hydraulic fluid port, and second actuator port is connected to return opening;
Said left redundant support cylinder contracts; Wherein, Said first change-over valve, said the 5th electromagnetic valve and said the 6th electromagnetic valve get; Said first electromagnetic valve, said second electromagnetic valve, said the 3rd electromagnetic valve, said the 4th electromagnetic valve, the 7th electromagnetic valve and the 8th electromagnetic valve must not be electric, and said second change-over valve switches makes its first actuator port be connected to return opening, and second actuator port is connected to the pressure hydraulic fluid port;
Said right redundant support cylinder is stretched; Wherein, Said first change-over valve, said the 3rd electromagnetic valve and said the 4th electromagnetic valve get; Said first electromagnetic valve, said second electromagnetic valve, said the 5th electromagnetic valve, said the 6th electromagnetic valve, the 7th electromagnetic valve and the 8th electromagnetic valve must not be electric, and said second change-over valve switches makes its first actuator port be connected to return opening, and second actuator port is connected to the pressure hydraulic fluid port;
Said right redundant support cylinder contracts; Wherein, Said first change-over valve, said the 3rd electromagnetic valve and said the 4th electromagnetic valve get; Said first electromagnetic valve, said second electromagnetic valve, said the 5th electromagnetic valve, said the 6th electromagnetic valve, the 7th electromagnetic valve and the 8th electromagnetic valve must not be electric, and said second change-over valve switches makes its first actuator port be connected to the pressure hydraulic fluid port, and second actuator port is connected to return opening.
10. multiple-axle vehicle is characterized in that, comprise according to each described oleo-pneumatic suspension system among the claim 5-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204395717U CN202319800U (en) | 2011-11-08 | 2011-11-08 | Auxiliary support device, oil/gas suspension system and multi-axis vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204395717U CN202319800U (en) | 2011-11-08 | 2011-11-08 | Auxiliary support device, oil/gas suspension system and multi-axis vehicle |
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| Publication Number | Publication Date |
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| CN202319800U true CN202319800U (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011204395717U Expired - Lifetime CN202319800U (en) | 2011-11-08 | 2011-11-08 | Auxiliary support device, oil/gas suspension system and multi-axis vehicle |
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| Country | Link |
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| CN (1) | CN202319800U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102431411A (en) * | 2011-11-08 | 2012-05-02 | 中联重科股份有限公司 | Auxiliary supporting device, oil and gas suspension system and multi-axle vehicle |
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2011
- 2011-11-08 CN CN2011204395717U patent/CN202319800U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102431411A (en) * | 2011-11-08 | 2012-05-02 | 中联重科股份有限公司 | Auxiliary supporting device, oil and gas suspension system and multi-axle vehicle |
| CN102431411B (en) * | 2011-11-08 | 2014-01-08 | 中联重科股份有限公司 | Auxiliary supporting device, oil and gas suspension system and multi-axle vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |