CN203211382U - Full floating connecting apparatus for vehicle frame connection - Google Patents
Full floating connecting apparatus for vehicle frame connection Download PDFInfo
- Publication number
- CN203211382U CN203211382U CN 201220720831 CN201220720831U CN203211382U CN 203211382 U CN203211382 U CN 203211382U CN 201220720831 CN201220720831 CN 201220720831 CN 201220720831 U CN201220720831 U CN 201220720831U CN 203211382 U CN203211382 U CN 203211382U
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- undersetting
- upper bracket
- unsteady
- subframe
- floating connecting
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Abstract
The utility model relates to a full floating connecting apparatus for a vehicle frame connection and the apparatus comprises a floating connecting support and a sub-frame, wherein the sub-frame is connected with a main frame via the floating connecting support and the sub-frame has no direct contact with the main frame. The floating connecting support comprises a cotter pin, a hexagon thin nut, a hexagon nut, an upper supporting seat, an anti-sheared pin, a buffer rubber, a connecting spring, a lower supporting seat, a pad and a hexagon bolt. when connection intensity and positioning are guaranteed, a minor deformation displacement is allowed to be carried out by the sub-frame relative to the main frame; deformations made by the main frame to adapt to road conditions are not restricted; the full floating connecting apparatus for a vehicle frame connection can reduce main frame stress and lower possibility of main frame damage; and the apparatus can also absorb vibrations and shocks transmitted by the ground, thereby facilitating protection of assembly. The full floating connecting apparatus for a vehicle frame connection is applicable to various vehicles, especially to off-road vehicles.
Description
Technical field
The utility model relates to a kind of mechanical connection anchor fitting, relates in particular to a kind of full floating connecting device for the carriage frame connection.
Background technology
When special-use vehicle designs, in order to improve the carrying situation of main car frame, avoid concentrated load, simultaneously also in order not destroy the structure of main car frame, the general subframe transition of adopting more.
Except light-duty vehicle, medium and heavy vehicle girder intensity, rigidity are abundant, and the flexible design that adopt on the structure are conducive to girder and discharge driving process and twist and warp formed stress more.When special-use vehicle is reequiped, except needing subframe, also can consider not have the subframe design.
Vehicle main distortion in the process of moving is crooked and distortion, and main car frame is that fulcrum bends with the back axle along longitudinal direction of car, and lateral direction of car is distorted.
There is theory to think, at the deformed region of vehicle bending and distortion, has axis of bending and the distortion axis of a similar neutral axis, can think that axial location does not deform, so can not influence the bending characteristic of vehicle self in the connection of this location arrangements.But in practical operation, different vehicle, axis is also inequality, and is unfixing, change with motion, be virtual axis therefore, connection location can only approach by behavior of structure and motion characteristics as far as possible.
In practical operation, can be simply with the vehicle longitudinal axis as the torsional deflection line of centers, be the flexural deformation line of centers with the back axle, or with behind the operator's compartment to the deformed region of back axle near the central transverse axis of back axle as diastrophic line of centers.
4 connections are the locating pair vehicle frame fully, and all the other connect the consideration that is based on aspects such as intensity more.
The radical function of subframe is connection, carrying, protection, vibration isolation, is the connected body of going up between dress and the main car frame.Usually, last dress does not allow distortion, and main car frame must be done certain deformation for adapting to road conditions, and therefore the vehicle of subframe is arranged, and consider to go up being connected of dress and subframe simultaneously.
Special-use vehicle is many with connections such as thrust connecting panel, connection support, U-bolts with being connected of subframe at present, point of connection is more many, additional stiffness is more big, subframe and main car frame tightly bundle through multiple spot, subframe rigidity almost all appends on the main car frame, limited main car frame and made necessary distortion for adapting to road conditions, aggravation main car frame stress, the possibility that increases main car frame and damage with subframe.
The connection of special-use vehicle especially U-bolt connection can cause stress to concentrate, and aggravation damages possibility and the speed of development that takes place.
Mostly the subframe of special-use vehicle is to drop on the main car frame through rim strip, because the planarization of structure itself and variation that vehicle travels and local contact, the formation contact stress comes in contact stress damage.
Subframe and the following several forms of normal employing of being connected of main car frame.
1, thrust connecting panel
Fig. 1 a, Fig. 1 b and Fig. 1 c are thrust connecting panel fixed forms in the prior art.The connecting panel upper end is fixed by welding and subframe, and the lower end then utilizes bolt to be connected with main car frame longeron web.The advantage of thrust plate is to bear bigger horizontal load, prevents that subframe from producing relative horizontal displacement with the main car frame longeron.Distance between adjacent two thrust connecting panels is in 500～1000mm scope.
2, connect support
Shown in Fig. 2 is to connect the support fixed form in the prior art, wherein connecting support is made up of separate upper and lower carriage, upper and lower carriage all fixes with the web of subframe and main car frame longeron respectively by bolt, and then with bolt upper and lower carriage is connected.Owing to leave the gap between the upper and lower carriage, it is less therefore to connect the horizontal load that support can bear, and should be used with the thrust connecting panel so connect support.The general layout is to connect with connecting support before the bearing before rear suspension, connects with the thrust connecting panel behind the bearing before rear suspension.
3, U-bolt
When selecting for use other connecting device to have any problem, can adopt U-shaped fastening bolt.But in being subjected to the scope of torque load maximum, vehicle frame do not allow to adopt U-bolt.When adopting U-bolt fixedly, for preventing the distortion of main car frame longeron aerofoil, side serves as a contrast with wooden unit within it, but near noise silencer, must use angle bar etc. to make liner.
But there is following shortcoming in above connection mode: support or the elasticity of being rigidly connected connects support subframe and main car frame is tightly linked together, increased the rigidity of main car frame, limit main car frame and made necessary distortion for adapting to road conditions, aggravation main car frame stress increases the possibility that main car frame and subframe damage.
The utility model content
The technical problems to be solved in the utility model is the above-mentioned shortcoming that overcomes prior art, provides a kind of and can reduce main car frame stress, prevents that the vehicle frame that main car frame and subframe damage is connected and fixed mechanism.
The utility model provides a kind of full floating connecting device for the carriage frame connection, it is characterized in that: comprising floats connects support, along the both sides of vehicle frame the connection support that floats more than two can be installed, float to connect that support comprises spring cotter, hexagon thin nut, hexagonal nut, upper bracket, anti-ly cuts off, yielding rubber, connection spring, undersetting, pad, hex bolt, yielding rubber is between upper bracket and undersetting, upper bracket, yielding rubber, undersetting have coaxial hole, and anti-cutting off run through this hole; Hex bolt passes the anti-centre hole that cuts off, and is locked by hexagon thin nut and the hexagonal nut of upper bracket top; Hexagon bolt head arranges pad, connects spring and is installed between undersetting and the pad; Upper bracket is connected with subframe, and undersetting is connected with main car frame; Subframe connects support by floating and is connected with main car frame.
In addition, the utility model also provides a kind of full floating connecting device for the carriage frame connection, comprise multi-joint unsteady connection supporting structure, along the both sides of vehicle frame plural multi-joint unsteady connection supporting structure can be installed, multi-joint unsteady connection supporting structure comprises a plurality of unsteady links, each unsteady link comprises spring cotter, hexagon thin nut, hexagonal nut, anti-cutting off, yielding rubber, connect spring, pad, hex bolt, all unsteady links share upper bracket and undersetting, yielding rubber is between upper bracket and undersetting, upper bracket, yielding rubber, undersetting has coaxial hole, and anti-cutting off run through this hole; Hex bolt passes the anti-centre hole that cuts off, and is locked by hexagon thin nut and the hexagonal nut of upper bracket top; The hex bolt head arranges pad, connects spring and is installed between undersetting and the pad, and upper bracket is connected with subframe, and undersetting is connected with main car frame; Subframe is connected with main car frame by multi-joint unsteady connection supporting structure.
Multi-joint unsteady connection supporting structure comprises two unsteady supporting structure or the two above connection supporting structures that float of connecting, the two unsteady supporting structures that connect comprise two unsteady links, and the connection supporting structure that floats more than two comprises the link that floats more than two.
Alternatively, the cross section of upper bracket, undersetting is flute profile or L shaped.
Alternatively, the cross section of upper bracket, undersetting is U-shaped.
Alternatively, the bottom beam structure of last dress substitutes subframe.
The beneficial effects of the utility model are:
1, full floating connecting device auxiliary connection vehicle frame and the main car frame shown in the utility model supports the weight on the subframe, and subframe does not contact with main car frame, can reduce the contact stress fatigue damage, also can reduce concentrated stress and damage.The full floating connecting device connects intensity and calculates along the unsteady connection support of main car frame both sides layout or the quantity of multi-joint unsteady connection supporting structure, and position, undersetting hole adopts main car frame to have the position, hole now as far as possible.Subframe or last dress and main car frame full floating connection mode can improve the structure flexibility of subframe and main car frame, when guaranteeing Joint strenght and location, allow subframe to do less deformation displacement with respect to main car frame, do not limit necessity distortion that main car frame is done for adapting to road conditions, reduce the main car frame resistance of deformation, reduce the possibility of its damage; Can absorb simultaneously vibrations and the impact that transmit on the road surface, reduce the impulsive force between main car frame and the subframe, be beneficial to the protection subframe.
2, subframe does not contact with main car frame, and floating by the back connects the supporting structure support, and some vehicle can omit subframe, lowers the center of gravity.
3, the utility model compact conformation is simple, safe and reliable.The various external impacts that the utility model can effectively absorb and the road surface of decaying applies.The utility model actv. has been protected the structural safety of main car frame and subframe.
Description of drawings
It should be noted that the accompanying drawing in describing below only schematically shows some embodiment, does not comprise all possible embodiment.
Fig. 1 a is the front view of the thrust connecting panel of prior art;
Fig. 1 b is the birds-eye view of the thrust connecting panel of prior art;
Fig. 1 c is the lateral plan of the thrust connecting panel of prior art;
Fig. 2 is the scheme drawing of the connection support of prior art;
Fig. 3 is the full floating connecting device scheme drawing of the utility model embodiment;
Fig. 4 a is the unsteady connection support scheme drawing of the utility model embodiment;
Fig. 4 b floats shown in Fig. 4 a to connect supporting structure along the B-B cutaway view;
Fig. 5 a is the two unsteady support scheme drawings that connect of the utility model embodiment;
Fig. 5 b is that the two unsteady supporting structures that connect shown in Fig. 5 a are along the B-B cutaway view.
Wherein: 1-subframe, 2-thrust connecting panel, 3-main car frame longeron, 4-bracket, the 5-bottom bracket, 6-bolt, 7-main car frame, 8-subframe, 9-floats and connects support, the last dress of 10-, 11-wheel, 12-upper bracket, the 13-yielding rubber, the 14-undersetting, 15-is anti-to cut off, the 16-brute spring, 17-hex bolt, 18-pad, the 19-hexagonal nut, 20-hexagon thin nut, 21-spring cotter.
The specific embodiment
Below with reference to accompanying drawing 3-5 the technical scheme of exemplary embodiment of the present utility model is elaborated.Obviously, described embodiment is a part of embodiment of this utility model, rather than whole embodiment.Described embodiment only is used for illustrating, rather than to the restriction of the utility model scope.Based on the embodiment of this utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of written or printed documents utility model protection.
Fig. 3 is the full floating connecting device scheme drawing of the utility model embodiment.As shown in Figure 3, the full floating connecting device comprises the connection support 9 that floats, and subframe 8 connects support 9 by floating and is connected with main car frame 7, and subframe 8 does not directly contact with main car frame 7, floating connects the both sides that support 9 is installed in main car frame, along the main car frame both sides a plurality of unsteady connection supports 9 can be installed.
Fig. 4 a is the unsteady connection support scheme drawing of the utility model embodiment; Fig. 4 b floats shown in Fig. 4 a to connect support along the B-B cutaway view.As shown in Figs. 4a and 4b, float to connect that support 9 comprises spring cotter 21, hexagon thin nut 20, hexagonal nut 19, upper bracket 12, anti-ly cuts off 15, yielding rubber 13, connect spring 16, undersetting 14, pad 18, hex bolt 17, floating connects support 10 and is used for supporting subframe.Yielding rubber is between upper bracket and undersetting, upper bracket 12, yielding rubber 13, undersetting 14 have coaxial hole, anti-cut off 15 and run through this hole, hex bolt 17 passes anti-15 the centre hole of cutting off, and is locked by hexagon thin nut 20 and the hexagonal nut 19 of upper bracket 12 tops.Hexagonal bar iron 17 heads arrange pad 18, connect spring 16 and are installed on undersetting and fill up between 18, and provide locking tension force for hexagonal bar iron.The connection support 10 that floats connects desirable strength and calculates definite.
The cross section of upper bracket 12, undersetting 14 can be flute profile or L shaped etc., and the cross section of upper bracket 12, undersetting 14 can be U-shaped, according to vehicle actual conditions is installed and determines.It is locking that spring cotter 21, hexagon thin nut 20, hexagonal nut 19 is used for structure.
Float to connect support 9 and should connect the deformation displacement amount of determining according to vehicle, mainly according to upper bracket 12, undersetting 14, anti-ly cut off 15, processing and fitting allowance between the hex bolt 17 determine.
Fig. 5 a is the two unsteady supporting structure scheme drawings that connect of the utility model embodiment; Fig. 5 b is that the two unsteady supporting structures that connect shown in Fig. 5 a are along the B-B cutaway view.When the vehicle connection space is nervous, need to consider more unsteady connection support based on Joint strenght.In the case, can adopt multi-joint unsteady connection supporting structure, for example can adopting floats more than two, three, three connects supporting structure.As an enforcement of the present utility model, Fig. 5 a shows the unsteady supporting structure that is connected of bigeminy with 5b.Shown in Fig. 5 a and 5b, the two unsteady supporting structures that connect comprise two unsteady links, each unsteady link comprises spring cotter 21, hexagon thin nut 20, hexagonal nut 19, anti-ly cuts off 15, yielding rubber 13, connect spring 16, pad 18, hex bolt 17, all unsteady links share upper bracket 12 and undersetting 14, yielding rubber is between upper bracket and undersetting, upper bracket 12, yielding rubber 13, undersetting 14 have coaxial hole, prevent that cutting off 15 runs through this hole.Hex bolt 17 passes anti-15 the centre hole of cutting off, and is locked by hexagon thin nut 20 and the hexagonal nut 19 of upper bracket 12 tops.Hex bolt 17 heads arrange pad 18, connect spring 16 and are installed on undersetting and fill up between 18, and provide locking tension force for hex bolt 17.
Similarly, the three unsteady supporting structures that connect comprise three unsteady links, and multi-joint unsteady connection supporting structure comprises a plurality of unsteady links.
Float to connect support bear subframe upwards, application force downwards, anti-cutting off for floating connects the support location, the restrained deformation displacement prevents from shearing bolt, floats to connect support and can do certain displacement to all directions.
By using the utility model, distortion causes main car frame or goes up dress and deforms and damage in the time of can preventing effectively that vehicle from travelling.
In the utility model, subframe is the connected body of going up between dress and the main car frame, is a middleware.The full floating connecting device can be born the connection identical with subframe, carrying, protection, vibration isolation effect, so the part vehicle can cancel subframe, directly installs dress.Under the situation of cancellation subframe, " subframe " mentioned above can replace with " going up the bottom beam structure of dress ", and the bottom beam structure of last dress connects support by floating and is connected with main car frame 7, and last dress does not directly contact with main car frame 7.
The concrete structure of connection mode of the present utility model should be optimized according to the structural adjustment of vehicle actual installation.
More than the description of embodiment of the present utility model only is used for the explanation the technical solution of the utility model; rather than to the restriction of the utility model scope; the utility model is not limited to disclosed these embodiment; those skilled in the art can make amendment to the technical scheme that aforementioned each embodiment puts down in writing; perhaps part technical characterictic wherein is equal to replacement, and these modifications or replace and all should fall into protection domain of the present utility model.
Claims (10)
1. one kind is used for the full floating connecting device that carriage frame connects, it is characterized in that: comprising floats connects support (9), along the both sides of vehicle frame (7) the connection support (9) that floats more than two is installed, the connection support (9) that floats comprises spring cotter (21), hexagon thin nut (20), hexagonal nut (19), upper bracket (12), anti-cut off (15), yielding rubber (13), connect spring (16), undersetting (14), pad (18), hex bolt (17), yielding rubber (13) is positioned between upper bracket (12) and the undersetting (14), upper bracket (12), yielding rubber (13), undersetting (14) has coaxial hole, prevents that cutting off (15) runs through this hole; Hex bolt (17) passes the anti-centre hole that cuts off (15), and is locked by hexagon thin nut (20) and the hexagonal nut (19) of upper bracket (12) top; Hexagonal bar iron (17) head arranges pad (18), connects spring (16) and is installed between undersetting (14) and the pad (18); Upper bracket (12) is connected with subframe (8), and undersetting (14) is connected with main car frame (7); Subframe (8) connects support (9) by floating and is connected with main car frame (7).
2. full floating connecting device according to claim 1, it is characterized in that: the cross section of upper bracket (12), undersetting (14) is flute profile or L shaped.
3. full floating connecting device according to claim 1, it is characterized in that: the cross section of upper bracket (12), undersetting (14) is U-shaped.
4. according to the described full floating connecting device of arbitrary claim of claim 1-3, it is characterized in that: the bottom beam structure that goes up dress substitutes subframe (8).
5. one kind is used for the full floating connecting device that carriage frame connects, it is characterized in that: comprise multi-joint unsteady connection supporting structure, plural multi-joint unsteady connection supporting structure is installed along the both sides of vehicle frame (7), multi-joint unsteady connection supporting structure comprises a plurality of unsteady links, each unsteady link comprises spring cotter (21), hexagon thin nut (20), hexagonal nut (19), anti-cut off (15), yielding rubber (13), connect spring (16), pad (18), hex bolt (17), all unsteady links share upper bracket (12) and undersetting (14), yielding rubber (13) is positioned between upper bracket (12) and the undersetting (14), upper bracket (12), yielding rubber (13), undersetting (14) has coaxial hole, prevents that cutting off (15) runs through this hole; Hex bolt (17) passes the anti-centre hole that cuts off (15), and is locked by hexagon thin nut (20) and the hexagonal nut (19) of upper bracket (12) top; Hex bolt (17) head arranges pad (18), connects spring (16) and is installed between undersetting (14) and the pad (18), and upper bracket (12) is connected with subframe (8), and undersetting (14) is connected with main car frame (7); Subframe (8) is connected with main car frame (7) by multi-joint unsteady connection supporting structure.
6. full floating connecting device according to claim 5, it is characterized in that: multi-joint unsteady connection supporting structure comprises two unsteady supporting structure or the two above connection supporting structures that float of connecting, the two unsteady supporting structures that connect comprise two unsteady links, and the connection supporting structure that floats more than two comprises the link that floats more than two.
7. full floating connecting device according to claim 5, it is characterized in that: the cross section of upper bracket (12), undersetting (14) is flute profile or L shaped.
8. full floating connecting device according to claim 5, it is characterized in that: the cross section of upper bracket (12), undersetting (14) is U-shaped.
9. according to claim 5 or 6 described full floating connecting devices, it is characterized in that: the bottom beam structure that goes up dress substitutes subframe (8).
10. full floating connecting device according to claim 7 is characterized in that: the alternative subframe (8) of bottom beam structure of going up dress.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220720831 CN203211382U (en) | 2012-12-24 | 2012-12-24 | Full floating connecting apparatus for vehicle frame connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220720831 CN203211382U (en) | 2012-12-24 | 2012-12-24 | Full floating connecting apparatus for vehicle frame connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203211382U true CN203211382U (en) | 2013-09-25 |
Family
ID=49200947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220720831 Expired - Fee Related CN203211382U (en) | 2012-12-24 | 2012-12-24 | Full floating connecting apparatus for vehicle frame connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203211382U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110304144A (en) * | 2019-07-05 | 2019-10-08 | 徐州徐工随车起重机有限公司 | One kind being used for the matched auxiliary frame structure in more chassis |
-
2012
- 2012-12-24 CN CN 201220720831 patent/CN203211382U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110304144A (en) * | 2019-07-05 | 2019-10-08 | 徐州徐工随车起重机有限公司 | One kind being used for the matched auxiliary frame structure in more chassis |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 Termination date: 20131224 |