CN205075606U - Leaf spring formula suspension with rubber bush structure - Google Patents

Abstract

The utility model discloses a leaf spring formula suspension with rubber bush structure, including leaf spring assembly, leaf spring support, connecting bolt, slotted nut, the split pin of welding on the frame, the leaf spring assembly includes leaf spring, rubber bush, and rubber bush comprises rubber sleeve and metal covering, and the metal covering includes neck bush, packing ring, outer bush from inside to outside in proper order, and the rubber sleeve is filled at the cavity position of metal covering, and rubber bush is connected with the grasswort interference of leaf spring one end, the leaf spring support includes bottom plate, gusset, left riser, right riser, and left riser and right riser vertical welding are in the bottom plate lower part, and the gusset welds between bottom plate, left riser and right riser, and it has the through -hole to open on left riser and the right riser, and connecting bolt passes through -hole, neck bush, and its other end is fixed through the split pin by slotted nut, and rubber bush's metal covering both ends top is by on left riser and right riser. The utility model discloses simple structure, light, the low cost, non -maintaining of quality.

Description

There is the steel plate spring type suspension of rubber bush structure

Technical field

The utility model relates to a kind of car hosit steel plate spring type suspension, particularly relates to a kind of steel plate spring type suspension with rubber bush structure.

Background technology

Suspension, refer to the general name of all power transmission attaching partss between vehicle frame and vehicle bridge, its effect road surface is acted on the moment that the vertical reaction (supporting power) on wheel, longitudinal counter-force (tractive force and braking force) and lateral reaction and these counter-forces produce be passed to vehicle frame by predetermined design goal, to ensure the normal traveling of vehicle.

Vehicle generally adopts steel spring as elastic element, and steel spring has guiding, damping of vibrations concurrently simultaneously, and steel plate spring type is suspended in car hosit and is used widely.

Traditional suspension connection structure as shown in Figure 9, it comprises steel plate spring assembly 4, be welded on the spring carrying block 5 on vehicle frame, connect bearing pin 9, locating dowel pin 10, by connection bearing pin 9, steel plate spring assembly 4 is connected with spring carrying block 5, have locating dowel pin 10 prevents connection bearing pin 9 from rotating simultaneously, steel plate spring assembly 4 grasswort partial configuration copper sheathing, during road traveling, when vehicle bridge is beated relative to vehicle frame, connect bearing pin 9 to rotate relative to the copper sheathing of steel plate spring assembly 4, for the service life making steel plate spring assembly 4 reach certain, suspension all has lubrication system, namely connect bearing pin 9 and need have oil leab and oilhole, complex structure and need working service, because connecting bearing pin 9 pairs of spring carrying blocks 5 without booster action, for the side force making spring carrying block 5 reliably can transmit vehicle, spring carrying block 5 need utilize slab, need to weld multiple reinforced rib simultaneously, namely traditional spring carrying block 5 need be welded multiple parts and be formed by base plate 51, gusset 52, left thick riser, right thick riser, riser, diagonal bar plate 11, complex structure, as shown in Figure 10, Figure 11.In sum traditional suspension connection structure spring carrying block complex structure, cost is high, weight is large and need safeguard.

Therefore need badly and provide a kind of novel car hosit steel plate spring type suspension to solve the problems referred to above.

Utility model content

Technical problem to be solved in the utility model is to provide a kind of steel plate spring type suspension with rubber bush structure, and structure is simple, non-maintaining.

For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: provide a kind of steel plate spring type suspension with rubber bush structure, be arranged between vehicle frame and vehicle bridge, comprise steel plate spring assembly, be welded on the spring carrying block on vehicle frame, tie bolt, fluted nut, spring cotter, steel plate spring assembly comprises steel spring, rubber bush, rubber bush is made up of rubber coating and metallic sheath, metallic sheath comprises inner covering from inside to outside successively, packing ring, external bushing, rubber coating is filled in the hollow part of metallic sheath, rubber bush is connected with the grasswort interference of steel spring one end,

Spring carrying block comprises base plate, gusset, left riser, right riser, left riser and right riser are vertically welded in base plate bottom, gusset is welded on base plate, between left riser and right riser, left riser and right riser have through hole, tie bolt is through through hole, inner covering, its other end is fixed by spring cotter by fluted nut, and the metallic sheath two ends of rubber bush lean on left riser and right riser.

In the utility model preferred embodiment, the rubber coating of rubber bush and metallic sheath are structure as a whole by rubber vulcanization process consolidation, compact siro spinning technology between the two.

The beneficial effects of the utility model are: the utility model structure is simple, quality is light, with low cost, the inner covering of rubber bush and tie bolt are without relatively rotating, and the grasswort interference fit of external bushing and steel plate spring assembly, nothing relatively rotate, and rubber bush shear rigidity is less, larger torsional deflection can be born, therefore tie bolt is without the need to arranging oilhole and oil duct, non-maintaining; Tie bolt adopts standard high intensity bolt, and spring carrying block adopts thin plate splicing weldering can meet the performance requriements that suspension system transmits vehicle bridge and vehicle frame motive power; The transmitting forces of rubber bush also has certain mitigation impact and the effect of damped vibration simultaneously, can extend the service life of the parts be attached thereto.

Accompanying drawing explanation

Fig. 1 is the perspective view that the steel plate spring type suspension system with rubber bush structure unifies preferred embodiment;

Fig. 2 is the lateral plan of described steel plate spring assembly;

Fig. 3 is the A-A cutaway view of Fig. 2;

Fig. 4 is the lateral plan of described rubber bush;

Fig. 5 is the front view of described spring carrying block;

Fig. 6 is the left view of Fig. 5;

Fig. 7 has the lateral plan of the steel plate spring type suspension of rubber bush structure described in being;

Fig. 8 is the cutaway view of described metal construction;

Fig. 9 is the lateral plan of conventional steel plates spring loaded suspension system in prior art;

Figure 10 is the front view of traditional spring carrying block in prior art;

Figure 11 is the left view of Figure 10;

In accompanying drawing, the mark of each parts is as follows: 1, vehicle frame, and 2, vehicle bridge, 3, bumper, 4, steel plate spring assembly, 41, steel spring, 411, grasswort, 42, rubber bush, 421, external bushing, 422, packing ring, 423, inner covering, 424, rubber coating, 5, spring carrying block, 51, base plate, 52, gusset, 53, left riser, 54, right riser, 55, through hole, 6, tie bolt, 7, fluted nut, 8, spring cotter, 9, bearing pin is connected, 10, locating dowel pin, 11, diagonal bar plate.

Detailed description of the invention

Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, to make advantage of the present utility model and feature can be easier to be readily appreciated by one skilled in the art, thus more explicit defining is made to protection domain of the present utility model.

Refer to Fig. 1, the utility model embodiment comprises:

A kind of steel plate spring type suspension with rubber bush structure, be arranged between vehicle frame 1 and vehicle bridge 2, bumper 3 is also connected with between suspension and vehicle frame 1, bumper 3 is for road shocks and the vibration of decaying, and described suspension comprises steel plate spring assembly 4, the spring carrying block 5 be welded on vehicle frame 1, tie bolt 6, fluted nut 7, spring cotter 8.Refer to Fig. 2 and Fig. 3, steel plate spring assembly 4 comprises steel spring 41, rubber bush 42, as elastic element and director element, transmit bearing force, tractive force, braking force and the side force between vehicle frame 1 and vehicle bridge 2, also there is mitigation impact effect simultaneously, composition graphs 4, rubber bush 42 is made up of rubber coating 424 and metallic sheath, metallic sheath comprises inner covering 423, packing ring 422, external bushing 421 from inside to outside successively, rubber coating 424 is filled in the hollow part of metallic sheath, and rubber coating 424 and metallic sheath are structure as a whole by rubber vulcanization process consolidation; The inner covering 423 of rubber bush 42 is connected with grasswort 411 interference of steel spring 41 one end, can not relatively rotate, prevent rubber bush 42 unitary rotation and wear and tear or ablation, interference fit can bear the side force transmitted between steel spring 41 and rubber bush 42 simultaneously.

Refer to Fig. 5 and Fig. 6, spring carrying block 5 utilizes thin plate welding to form, comprise base plate 51, gusset 52, left riser 53, right riser 54, left riser 53 is vertically welded in base plate 51 bottom with right riser 54, gusset 52 is welded on base plate 51, between left riser 53 and right riser 54, left riser 53 and right riser 54 have through hole 55, composition graphs 7, tie bolt 6 is through through hole 55, inner covering 423, its other end is fixed by spring cotter 8 by fluted nut 7, and the metallic sheath two ends of rubber bush 42 lean at left riser 53 with on right riser 54.After fluted nut 7 applies the predetermincd tension of setting, the inner covering 423 of rubber bush 42, tie bolt 6, fluted nut 7 and spring carrying block 5 form unitary rigid metal construction, as shown in Figure 8, therefore the inner covering 423 of rubber bush 42 can not relatively rotate with tie bolt 6.

Steel plate spring type suspension described in the utility model has rubber bush structure, plays hinged effect by the little rigidity shear constitution characteristic of rubber bush 42.Rubber shear rigidity is very little, and shearing strain quantity is very large, the rotational deformation amount of grasswort 411 hinge of the steel spring 41 caused because of axle tramp is again little, so the little characteristic of rubber bush structure shear rigidity can meet required steel spring 41 when vehicle bridge 2 is beated connect the demand of the rotation of hinge.Compression stiffness due to rubber is comparatively large and be non-linear rigidity, under large application force, its compression property rigidity is close to metal, so the rubber bush 42 in the utility model can with traditional copper sheathing, the effect of the vertical (bearing force) between vehicle bridge 2 and vehicle frame 1, longitudinal force (propulsive effort and braking force) can be transmitted, the transmitting forces of rubber bush 42 also has certain mitigation impact and the effect of damped vibration simultaneously, can extend the service life of the parts be attached thereto.

The stressing conditions of each structure in the utility model is described below.Middle part and the vehicle bridge 2 of steel plate spring assembly 4 are rigidly connected, the transverse force of the inside is passed to steel spring 41 by vehicle bridge 2, transverse force is passed to spring carrying block 5 by steel spring 41 grasswort 411 place, spring carrying block 5 and vehicle frame 1 are welded as a whole, be rigidly connected, thus effectively deliver the transverse force on road surface.Again because the inner covering 423 of rubber bush 42, tie bolt 6, fluted nut 7 and spring carrying block 5 form metal rigidity entirety, under the effect of road surface transverse force, the left and right riser of spring carrying block 5 is overall stressed, and lateral stiffness is very large, and therefore spring carrying block 5 utilizes thin plate welding.

The rotation that steel spring 41 grasswort 411 place connects hinge is provided by the shear deformation of rubber bush 42, and do not exist between each metal piece in the utility model and relatively rotate, so without the need to arranging lubrication system, and tie bolt 6 adopts standard high intensity bolt to meet the demands, therefore the utility model has structure advantage non-maintaining, with low cost, and the utility model can reach the required performance requriements transmitting vehicle bridge 2 and vehicle frame 1 motive power of suspension system completely, relative to traditional suspension system, also there is simple, the lightweight advantage of structure.

The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model specification sheets and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.

Claims (2)

1. one kind has the steel plate spring type suspension of rubber bush structure, be arranged between vehicle frame and vehicle bridge, it is characterized in that, comprise steel plate spring assembly, the spring carrying block be welded on vehicle frame, tie bolt, fluted nut, spring cotter, steel plate spring assembly comprises steel spring, rubber bush, rubber bush is made up of rubber coating and metallic sheath, metallic sheath comprises inner covering, packing ring, external bushing from inside to outside successively, rubber coating is filled in the hollow part of metallic sheath, and rubber bush is connected with the grasswort interference of steel spring one end;

Spring carrying block comprises base plate, gusset, left riser, right riser, left riser and right riser are vertically welded in base plate bottom, gusset is welded on base plate, between left riser and right riser, left riser and right riser have through hole, tie bolt is through through hole, inner covering, its other end is fixed by spring cotter by fluted nut, and the metallic sheath two ends of rubber bush lean on left riser and right riser.

2. the steel plate spring type suspension with rubber bush structure according to claim 1, is characterized in that, the rubber coating of rubber bush and metallic sheath are structure as a whole by rubber vulcanization process consolidation.