CN207683635U - Van type carriage body mounting assembly with flexible structure - Google Patents
Van type carriage body mounting assembly with flexible structure Download PDFInfo
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- CN207683635U CN207683635U CN201721144425.5U CN201721144425U CN207683635U CN 207683635 U CN207683635 U CN 207683635U CN 201721144425 U CN201721144425 U CN 201721144425U CN 207683635 U CN207683635 U CN 207683635U
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Abstract
The utility model is related to a kind of van type carriage body mounting assemblies with flexible structure, including the subframe of van type carriage body, chassis main car frame, upper and lower damping mount mechanism and the U-shaped U-bolts for connection, it is characterized in that：Upper damping mount mechanism is equipped between the subframe and main car frame, lower damping mount mechanism is equipped with below main car frame, subframe, upper damping mount mechanism, main car frame and lower vibration absorber are threadedly coupled and constitute van type carriage body mounting assembly by perforative U-shaped U-bolts from top to bottom.Advantageous effect：The flexible suspension assembly of the utility model is used for van type carriage body assembly, can be effectively isolated the vibration caused by road roughness and be transferred to vehicle compartment, improve reliability, Transport Safety and the usage economy of load-carrying vehicle carriage body.
Description
Technical field
The utility model belongs to motor vehicle more particularly to a kind of van type carriage body mounting assembly with flexible structure.
Background technology
Van type carriage body suspension system refers to being transmitted for reducing and controlling van type carriage body vibration, and play a supporting role
Assembly structure.
Currently, van mainly has van-type, square cabinet type, container-type and several structure types, chassis and the compartment such as platform-type
Suspension type of attachment between body mainly has U-bolt linking, twist lock linking, is lock linking and other connection types four
Class is rigid connection structure substantially.Most using the van quantity of U-bolt linking, van uses U-shaped spiral shell mostly
Bolt connection type.For a long time, the design of these suspension connection structures primarily focuses on structural strength, and to inhibit vibration to transmit
It is less for the mounting structure matched design of target.The vehicle subframe of van type carriage body assembly suspension system and chassis main car frame
Connection structure is separated by with plank between main car frame and subframe, is connected and fixed by multiple U-bolts, and has inhibition to lead in side
The baffle of vehicle frame sideslip opposite with subframe and the bolt for preventing front and back opposite sliding.
Research shows that：It is rigidly connected using U-bolt, the vibration of exciting source is directly transmitted via main car frame without decaying
To carriage body, by torsional load or vehicle, vehicle frame will produce big displacement deformation under turning, emergency braking operating mode, may cause carriage body
Relative displacement occurs with chassis, seriously affects the reliability of connection structure.Using unreasonable repacking connection structure, structure can be made
Stress distribution deteriorates, it is also possible to cause occur covibration in vehicle travel process, easily cause vehicle structure failure, influence vehicle
Safety and reliability.In addition, rigidity suspension causes carriage body oscillation intensity big, some fortune more demanding to vibration environment
It carries for take vibration isolation measure respectively, a large amount of wastes of carrying space and delivery cost can be caused to increase.Due to the main vehicle in chassis
Space between frame and subframe is smaller, realizes effectiveness in vibration suppression with common spring damping structure, can make the height of C.G. of carriage body
It greatly increases, increases the safety risks of vehicle travel process.
Van type carriage body vibration damping is large-scale motor transport vehicle technical barrier urgently to be resolved hurrily.
Utility model content
Purpose of the utility model is to overcome the shortcomings of the above technology, and to provide a kind of vans with flexible structure
Carriage body mounting assembly, it is ensured that when the subframe of van type carriage body moves up and down with chassis main car frame, by suspension system
The deformation of flexible structure, movement of the buffering carriage body with respect to chassis main car frame.
The utility model to achieve the above object, using following technical scheme：A kind of enclosed load compartment with flexible structure
Body mounting assembly, including the subframe of carriage body is with chassis main car frame, upper and lower damping mount mechanism and for suspending the U-shaped of connection
U-bolts, it is characterized in that：It is equipped with upper damping mount mechanism between the subframe and main car frame, is equipped with down and subtracts below main car frame
Shake suspending mechanism, and perforative U-shaped U-bolts fills subframe, upper damping mount mechanism, main car frame and lower vibration damping from top to bottom
Set the suspension system assembly for being threadedly coupled and constituting van type carriage body.
The upper damping mount mechanism includes metal-rubber net block and upper metal-rubber net block shell, the metal-rubber net
Block is rounded, and upper and lower surface is symmetrical arranged as the conical surface, and circular metal rubber net block center is equipped with the circle through U-shaped U-bolts
Hole；The upper metal-rubber net block shell includes upper protection cap and upper support seat, and metal-rubber net block is placed in the upper protection of fastening
Lid and the upper vibration-proof structure of composition in upper support seat；The upper protection cap is surrounded by convex edge, and two are arranged on the inside of upper protection cap
A groove for placing metal-rubber block, groove center are equipped with the circular hole through U-shaped U-bolts；It is symmetrical on the inside of the upper support seat
If there are two the boss that can place metal-rubber block, boss center is equipped with the circular hole through U-shaped U-bolts.
The lower damping mount structure includes metal-rubber net block and lower metal-rubber net block shell, the lower metal-rubber
Net block shell includes lower protection cap and lower support base, and the lower protection cap that metal-rubber net block is placed in fastening is constituted with lower support base
Lower vibration-proof structure, the lower protection cap are surrounded by convex edge, and two are arranged on the inside of lower protection cap and places metal-rubber block
Groove, groove center are equipped with the circular hole through U-shaped U-bolts；Lower support base is arranged to two independent support bases, support base
Equipped with the boss for placing metal-rubber net block, boss center is equipped with the circular hole through U-shaped U-bolts.
The upper and lower protection cap and upper support seat vertical view gabarit are rectangular, and both ends are equipped with circular arc；Lower support base overlooks gabarit
It is rounded.
The groove of the upper and lower protection cap and the boss edge of upper and lower support base are equipped with rounded corner.
The groove of the upper and lower protection cap and the boss of upper and lower support base are equipped with to be matched with the metal-rubber net block conical surface
Circular conical surface.
Guarantee vibration is respectively equipped between the upper protection cap and upper support seat and between lower protection box cover and lower support base
When non-interference fastening gap.
The upper and lower metal-rubber net block shell uses the 40Cr materials of conditioned heat treatment.
The metal-rubber net block use 0Cr18Ni9Ti or 1Cr18Ni9Ti materials, wire diameter be 0.08mm~
0.15mm, a diameter of 0.5mm~1.2mm of helical coil turned to.
Advantageous effect：Compared with prior art, the van type carriage body mounting assembly with flexible structure of the utility model
For van, the vibration caused by road roughness can be effectively isolated and be transferred to vehicle compartment, improve load-carrying vehicle compartment
Reliability, Transport Safety and the usage economy of body.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of upper damping mount mechanism；
Fig. 3 is the structural schematic diagram of upper and lower protection cap；
Fig. 4 is the structural schematic diagram of upper support seat；
Fig. 5 is the structural schematic diagram of lower vibration absorber；
Fig. 6 is the structural schematic diagram of metal-rubber net block；
Fig. 7 is shell mechanism and stress diagram on metal-rubber.
In figure：1, upper and lower protection cap, 2, metal-rubber net block, 3, upper support seat, 3-1, lower support base, 4, boss, 5, circle
The conical surface, 6, fasten gap, 7, circular hole, 8, rounded corner, 9, convex edge, 10, groove, 11, subframe, 12, main car frame, 13, U-shaped ride
Bolt, 14, upper damping mount mechanism, 15, lower vibration absorber.
Specific implementation mode
Specific embodiment of the present utility model is described in detail with reference to preferred embodiment.
Attached drawing is referred to, a kind of van type carriage body mounting assembly with flexible structure, including carriage body are present embodiments provided
Subframe 11 constituted with chassis main car frame 12 and suspend the U-shaped U-bolts 13 connecting, the subframe between the two
It is equipped with upper damping mount mechanism 14 between main car frame, is equipped with lower damping mount mechanism 15 below main car frame, runs through from top to bottom
U-shaped U-bolts by subframe, upper damping mount mechanism, main car frame and lower vibration absorber be threadedly coupled constitute van type carriage body
Mounting assembly.
The upper damping mount mechanism includes metal-rubber net block 2 and upper metal-rubber net block shell, the metal-rubber
Net block overlooks that gabarit is rounded, and upper and lower surface is symmetrical arranged as the conical surface, and circular metal rubber net block center is equipped with rides through U-shaped
The circular hole 7 of horse conch bolt；The upper metal-rubber net block shell includes upper protection cap 1 and upper support seat 3, and metal-rubber net block is placed in
The upper protection cap fastened and the upper vibration-proof structure of composition in upper support seat；The upper protection cap is surrounded by convex edge 9, in upper protection cap
Side is arranged with the groove of two placement metal-rubber blocks, and groove center is equipped with the circular hole through U-shaped U-bolts；The upper branch
It is arranged with the boss 4 of two placement metal-rubber blocks on the inside of support seat, constrains metal-rubber block, makes it will not in vibration processes
Loosely, boss center is equipped with the circular hole through U-shaped U-bolts；
The lower damping mount mechanism includes metal-rubber net block and lower metal-rubber net block shell, the lower metal-rubber
Net block shell includes lower protection cap 1 and lower support base 3-1, and metal-rubber net block is placed in lower protection cap and the lower support base of fastening
Lower vibration-proof structure is constituted, the lower protection cap is surrounded by convex edge 9, and two placement metal-rubbers are arranged on the inside of lower protection cap
The groove 10 of block, a diameter of φ 66mm of the present embodiment；Groove center is equipped with the circular hole 7 through U-shaped U-bolts；The present embodiment two
For a center of circular hole away from for 100mm, lower support base is arranged to two independent support bases, and support base, which is equipped with, places metal-rubber net block
Boss, boss center be equipped with through U-shaped U-bolts circular hole 7, the present embodiment aperture be φ 20mm.The upper and lower protection
Lid and upper support seat vertical view gabarit are rectangular, and both ends are equipped with circular arc, the long 178mm of the upper and lower metal-rubber net block shell of the present embodiment
Wide 78mm thickness 20mm；The lower rounded support base of support base shape.The groove of the upper and lower protection cap and upper and lower support base it is convex
It is equipped with rounded corner 8 at edge of table, prevents from cutting off metal-rubber wire in the block in vibration processes, reduces making for suspension system
Use the service life.The groove of the upper and lower protection cap and the boss of upper and lower support base are equipped with matched with the metal-rubber net block conical surface
Circular conical surface 5, collaboration U-bolts carry out position constraint to metal-rubber block.Between the upper protection cap and upper support seat and lower guarantor
It protects and is respectively equipped with fastening gap 6 non-interference when ensureing vibration between box cover and lower support base, in guarantee vibration processes mutually not
Interference.
The upper and lower metal-rubber net block shell uses the 40Cr materials of conditioned heat treatment.The metal-rubber net block
Using 0Cr18Ni9Ti or 1Cr18Ni9Ti materials, wire diameter is 0.08mm~0.15mm, the spiral coil diameter turned to
For 0.5mm~1.2mm.
The shell of metal-rubber has three aspect effects：First, net block is in direct contact element, play a part of to transmit power；Second is that
Prevent metal-rubber block by dust, oil pollution；Third, protection metal-rubber block will not be deformed loosely in vibration processes.
The present embodiment is with the scheme of placement of flexible mounting assembly at six U-shaped U-bolts.The original of vehicle compartment and vehicle frame
Beginning connection status is：Carriage body is connected with subframe bolt, and subframe is connected with chassis main car frame U-bolt.To improve carriage body
Ride comfort designs mounting assembly between subframe and main car frame, to improve the quality of vibration of carriage body.
Since the space between chassis main car frame and carriage body subframe is smaller, vibration damping is realized with common spring damping structure
Effect can be such that the height of C.G. of carriage body greatly increases, and increase the safety risks of vehicle travel process.In view of vehicle frame and secondary vehicle
Frame is cluster structure, and space is limited between vehicle frame and subframe, considers suspension system being separated into two parts up and down.By main vehicle
Plank placed separately between frame and subframe removes, damping mount element in placement；The lower baffle plate that U-bolt is bundled to main car frame is gone
Fall, changes lower damping mount element into.In this way, when subframe and vehicle frame move up and down, the elasticity member of suspension system can be relied on
The deformation of part buffers the movement of carriage body relative frame.
Attached drawing 3-6 is referred to, 1 is protection cap on metal-rubber block；2 be metal-rubber net block；3 be to be propped up on metal-rubber net block
Support seat；It is to consider constraint metal-rubber block that boss is designed at 4, makes it will not be loose in vibration processes.Boss edge needs
Rounded corner 8 prevents from cutting off metal-rubber wire in the block in vibration processes, reduces the service life of suspension system；It is bored at 5
Face design is to coordinate the net block 2 of the same conical surface, collaboration U-bolts to carry out position constraint to metal-rubber block；It is protected at 6
Gap between protecting cover and support base will ensure non-interference in vibration processes；7 perforate for U-bolts.
Attached drawing 7 is stress diagram,
FPressureIndicate that vehicle subframe is applied to the pressure of protection cap,
FBranchIndicate that carriage frame is applied to the support force of upper support seat.
Specifeca tion speeification is tested
(1) metal-rubber block rigidity test
Test target：Metal-rubber block approximately linear rigidity.
Test method：Metal-rubber block is placed in its shell, compression experiment is carried out in experimental machine, obtains metal-rubber
The force-displacement curve of block carries out linear fit to curve, obtains the approximately linear rigidity of metal-rubber block, carried out with design value
Comparison.
Test process：By two pieces of metal-rubber blocks be placed on net block upper cover and pedestal among corresponding to groove in, keep flat
On the supporting plate of compressor.Experimental machine test software is controlled, makes the top board of compressor with the speed compression of 10mm/min, waits for
When pressing plate and metal-rubber block shell contact force are 4kN, by the power of experimental machine and displacement zero setting, from new definition compression starting point, then
It is compressed to 4kN, obtains force-displacement curve.
Carriage body suspending apparatus is placed between vehicle frame and carriage body simultaneously for six sets, totally ten two upper metal-rubber net blocks, vehicle
Carriage body quality is 3.47T, it is assumed that each net block uniformly shares carriage body quality, then the carrying quality of each net block is about
289.2kg, then the gravity suffered by two pieces of metal-rubber blocks when testing is about 5784N.And in particle group optimizing, selection
The vertical acceleration virtual value of carriage body is when identical road excitation condition：0.7m/s2, according to Principle of Statistics, it is believed that acceleration
Maximum value be 0.7 × 6=4.2m/s2, then it is 1.4574 × 10 that the inertia force of carriage body, which is most worth,4N, it is also assumed that each net block is equal
Even to share this inertia force, then the carrying inertia force of each net block is 1214.5N, and the inertia force of two net blocks carrying is 2429N.
The maximum pressure that then two net blocks are born is about 8213N, and the minimum pressure that two pieces of net blocks are born is about 3355N.In order to
The average linear rigidity of metal-rubber block is calculated, rubber block is calculated and bears the power displacement curve that pressure is 4000N-8000N, carry out
Linear averaging.So, application experiment machine carries out slow pressure-loaded to 4kN to net block, is equivalent to and gives suspension system one preload
Power, then to the pressure of net block application 4kN, the true pressure of net block is 8kN.To a certain extent it is believed that net in practice
The common working range of block pressure is in 4kN-8kN.By it is above-mentioned from it is new define zero after force-displacement curve export, to power and
Displacement carries out least square fitting, and the approximately linear rigidity obtained herein is：1391N/mm, this result are two metal-rubber nets
The rigidity of block parallel connection, the result of the value of approximately linear rigidity and particle group optimizing before is close to 1424N/mm, it was demonstrated that this metal rubber
The rigidity of blob of viscose meets design requirement.
Since the designed main stressed member of suspension system is upper metal-rubber block and its shell, so using finite element
Method to its shell carry out strength check, verify its shell design shape size meet Strength Safety requirement, ensure suspension
The fast shell of metal-rubber will not be surrendered after system is mounted on vehicle frame.
It is above-mentioned with reference to embodiment to this it is a kind of with flexible structure van type carriage body mounting assembly progress detailed description,
It is illustrative without being restrictive, several embodiments can be enumerated according to limited range, therefore do not departing from this reality
With the change and modification under novel general plotting, should belong within the scope of protection of the utility model.
Claims (9)
1. a kind of van type carriage body mounting assembly with flexible structure, including the subframe of upper dress carriage body, chassis main car frame, on
Lower damping mount mechanism and for suspend connection U-shaped U-bolts, it is characterized in that：It is set between the subframe and main car frame
You Shang damping mounts mechanism is equipped with lower vibration absorber below main car frame, from top to bottom perforative U-shaped U-bolts by subframe,
Upper damping mount mechanism, main car frame and lower vibration absorber are threadedly coupled the mounting assembly for constituting van type carriage body.
2. the van type carriage body mounting assembly of flexible structure according to claim 1, it is characterized in that：The upper vibration damping is outstanding
It includes metal-rubber net block and upper metal-rubber net block shell to set mechanism, and the metal-rubber net block is rounded, upper and lower surface
It is symmetrical arranged as the conical surface, circular metal rubber net block center is equipped with the circular hole through U-shaped U-bolts；The upper metal-rubber net
Block shell includes upper protection cap and upper support seat, and metal-rubber net block is placed in the upper protection cap of fastening and is constituted in upper support seat
Vibration-proof structure；The upper protection cap is surrounded by convex edge, and two are arranged on the inside of upper protection cap and places the recessed of metal-rubber block
Slot, groove center are equipped with the circular hole through U-shaped U-bolts；Metal can be placed by being arranged with two on the inside of the upper support seat
The boss of rubber block, boss center are equipped with the circular hole through U-shaped U-bolts.
3. the van type carriage body mounting assembly according to claim 2 with flexible structure, it is characterized in that：The lower vibration damping
Suspending mechanism includes metal-rubber net block and lower metal-rubber net block shell, and the lower metal-rubber net block shell includes lower protection
Lid and lower support base, metal-rubber net block is placed in the lower protection cap and the lower vibration-proof structure of composition in lower support base of fastening, under described
Protection cap is surrounded by convex edge, the groove of two placement metal-rubber blocks is arranged on the inside of lower protection cap, groove center is equipped with
Through the circular hole of U-shaped U-bolts；Lower support base is arranged to two independent support bases, and support base, which is equipped with, places metal-rubber net
The boss of block, boss center are equipped with the circular hole through U-shaped U-bolts.
4. the van type carriage body mounting assembly according to claim 2 with flexible structure, it is characterized in that：The upper protection
The vertical view gabarit of lid and upper support seat is rectangular, and both ends are equipped with circular arc；The groove of upper protection cap and the boss edge of upper support seat
Place is equipped with rounded corner.
5. the van type carriage body mounting assembly according to claim 4 with flexible structure, it is characterized in that：The upper protection
The groove of lid and the boss of upper support seat are equipped with and the matched circular conical surface of the metal-rubber net block conical surface.
6. the van type carriage body mounting assembly according to claim 3 with flexible structure, it is characterized in that：The lower protection
Lid vertical view gabarit is rectangular, and both ends are equipped with circular arc, and it is rounded that lower support base overlooks gabarit；The groove of the lower protection cap and lower branch
The boss edge for supportting seat is equipped with rounded corner.
7. the van type carriage body mounting assembly according to claim 6 with flexible structure, it is characterized in that：The lower protection
The boss of the groove of lid and lower support base is equipped with and the matched circular conical surface of the metal-rubber net block conical surface.
8. the van type carriage body mounting assembly according to claim 3 with flexible structure, it is characterized in that：The upper protection
It is respectively equipped between lid and upper support seat and between lower protection cap and lower support base fastening gap non-interference when ensureing vibration.
9. the van type carriage body mounting assembly according to claim 2 or 3 with flexible structure, it is characterized in that：The gold
It is 0.08mm~0.15mm to belong to rubber net block to use 0Cr18Ni9Ti or 1Cr18Ni9Ti materials, wire diameter, is turned to
The a diameter of 0.5mm~1.2mm of helical coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721144425.5U CN207683635U (en) | 2017-09-08 | 2017-09-08 | Van type carriage body mounting assembly with flexible structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721144425.5U CN207683635U (en) | 2017-09-08 | 2017-09-08 | Van type carriage body mounting assembly with flexible structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207683635U true CN207683635U (en) | 2018-08-03 |
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ID=62987254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721144425.5U Active CN207683635U (en) | 2017-09-08 | 2017-09-08 | Van type carriage body mounting assembly with flexible structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN207683635U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107512318A (en) * | 2017-09-08 | 2017-12-26 | 中国人民解放军军事交通运输研究所 | Van type carriage body mounting assembly with flexible structure |
-
2017
- 2017-09-08 CN CN201721144425.5U patent/CN207683635U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107512318A (en) * | 2017-09-08 | 2017-12-26 | 中国人民解放军军事交通运输研究所 | Van type carriage body mounting assembly with flexible structure |
| CN107512318B (en) * | 2017-09-08 | 2024-03-26 | 中国人民解放军军事交通运输研究所 | Van body suspension assembly with flexible structure |
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