CN103192878A - Cross-shaped rotating shaft floating connection device for connection of frames of vehicle - Google Patents
Cross-shaped rotating shaft floating connection device for connection of frames of vehicle Download PDFInfo
- Publication number
- CN103192878A CN103192878A CN2012105687675A CN201210568767A CN103192878A CN 103192878 A CN103192878 A CN 103192878A CN 2012105687675 A CN2012105687675 A CN 2012105687675A CN 201210568767 A CN201210568767 A CN 201210568767A CN 103192878 A CN103192878 A CN 103192878A
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- support
- undersetting
- rotating shaft
- upper bracket
- swinging strut
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Abstract
The invention relates to a cross-shaped rotating shaft floating connection device for connection of frames of a vehicle, which comprises floating rotating brackets and a rotating shaft bracket, wherein an auxiliary vehicle frame is connected with a main vehicle frame through the floating rotating brackets and the rotating shaft bracket and not in direct contact with the main vehicle frame, the rotating shaft bracket is installed at the front part and the rear part of the longitudinal axis of the vehicle and arranged on a cross beam connected with the main vehicle frame, the two pairs of the floating rotating brackets are installed on two sides of the main vehicle frame and fixed in the position of the auxiliary vehicle frame opposite to the main vehicle frame, and the rotating shaft bracket arranged along the longitudinal axis of the vehicle and the floating rotating brackets installed on two sides of the main vehicle frame constitute a cross shape. When the bonding strength and the positioning are ensured, the smaller deformation displacement of the auxiliary vehicle frame relative to the main vehicle frame is allowed, deformation of the main vehicle frame for adapting to road conditions is not limited, the stress of the main vehicle frame is reduced, the possibility of damage to the main vehicle frame and the auxiliary vehicle frame is lowered, and meanwhile, the vibration and the impact from the road surface are absorbed for protecting the upper part; and the cross-shaped rotating shaft floating connection device is suitable for various vehicle types.
Description
Technical field
The present invention relates to a kind of mechanical connection anchor fitting, relate in particular to a kind of cross that connects for carriage frame and revolve the unsteady device that is connected and fixed of axle.
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 increases the possibility that main car frame and subframe damage.
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 is thrust connecting panel fixed form 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.
Summary of the invention
Technical matters to be solved by this invention 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 invention provides a kind of cross that connects for carriage frame and revolve the unsteady connecting device of axle, comprise unsteady swinging strut, S. A. support, the S. A. support is installed in vehicle longitudinal axis front portion and rear portion, two pairs of unsteady swinging struts are installed in the both sides of main car frame, constitute " ten " font along vehicle longitudinal axis the S. A. support of installing and the unsteady swinging strut that is installed in the main car frame both sides, subframe is connected with main car frame by the swinging strut that floats, S. A. support.
The S. A. support comprises S. A. support upper bracket, S. A. rack shaft and S. A. support undersetting; The S. A. rack shaft passes the connecting bore between S. A. support upper bracket and the S. A. support undersetting, thereby makes S. A. support upper bracket to rotate with respect to S. A. support undersetting.
The S. A. support is installed on the beam structure, and beam structure comprises crossbeam, connects support, and the crossbeam of beam structure connects by being connected support with main car frame, and S. A. support undersetting is installed on the crossbeam, and S. A. support upper bracket is connected with subframe.
Unsteady swinging strut comprises upper bracket, elastic caoutchouc, swinging strut rotating shaft, undersetting float, float the swinging strut rotating shaft in the shaft hole of upper bracket, elastic caoutchouc is installed in the swinging strut rotating shaft of floating and in the shaft hole of undersetting, upper bracket is connected with subframe, and undersetting is connected with main car frame.
Elastic caoutchouc is and the coaxial drum of swinging strut rotating shaft that floats.Alternatively, elastic caoutchouc can adopt other elastic element.
The cross section of upper bracket, undersetting is U-shaped, flute profile or L shaped; The cross section of S. A. support upper bracket, S. A. support undersetting can be U-shaped, flute profile or L shaped.
Alternatively, the bottom beam structure of last dress substitutes subframe.
Beneficial effect of the present invention is:
1, diesis shown in the present revolves the unsteady connecting device auxiliary connection vehicle frame of axle and main car frame, 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.Diesis revolves the structure flexibility that the unsteady connecting device of axle can improve 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, supports by S. A. support, the swinging strut that floats, and some vehicle can omit subframe, lowers the center of gravity.
3, compact conformation of the present invention is simple, safe and reliable.The various external impacts that the present invention can effectively absorb and the road surface of decaying applies.Actv. of the present invention 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 is the scheme drawing of the thrust connecting panel of prior art;
Fig. 2 is the scheme drawing of the connection support of prior art;
Fig. 3 is that the diesis of the embodiment of the invention revolves the unsteady connecting device scheme drawing of axle;
Fig. 4 is the back view that the diesis of the embodiment of the invention revolves the unsteady connecting device of axle;
The diesis that Fig. 5 shows the embodiment of the invention revolves axle and floats and be connected and fixed a device and remove the scheme drawing of going up dress;
Fig. 6 a is the S. A. support scheme drawing of the embodiment of the invention;
Fig. 6 b is the left view of S. A. support shown in Fig. 6 a;
Fig. 7 a is the unsteady swinging strut structural representation of the embodiment of the invention;
Fig. 7 b floats the swinging strut structure along the B-B cutaway view shown in Fig. 7 a;
Fig. 8 a is the beam structure scheme drawing that the S. A. support is installed;
Fig. 8 b is the left view of beam structure shown in Fig. 8 a.
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, the 9-swinging strut that floats, 10-S. A. support, 11-beam structure, the 12-upper bracket, 13-elastic caoutchouc, 14-undersetting, the 15-swinging strut rotating shaft of floating, 16-S. A. support upper bracket, 17-S. A. rack shaft, 18-S. A. support undersetting, the last dress of 19-, 81-crossbeam, 82-connect support.
The specific embodiment
Below with reference to accompanying drawing 3-8 the technical scheme of exemplary embodiment of the present invention is elaborated.Obviously, described embodiment is a part of embodiment of the present invention, rather than whole embodiment.Described embodiment only is used for illustrating, rather than limitation of the scope of the invention.Based on embodiments of the invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Fig. 3 is that the diesis of the embodiment of the invention revolves the unsteady connecting device scheme drawing of axle; Fig. 4 is the back view that the diesis of the embodiment of the invention revolves the unsteady connecting device of axle.As shown in Figure 3-4, diesis revolves the unsteady connecting device of axle and comprises float swinging strut 9, S. A. support 10, and subframe 8 is connected with main car frame 7 by the swinging strut 9 that floats, S. A. support 10, and subframe 8 does not directly contact with main car frame 7.
S. A. support 10 is installed in vehicle longitudinal axis front portion and rear portion, two pairs of unsteady swinging struts 9 are installed in the both sides of main car frame 7, fixed joint vehicle frame 8 and main car frame 7 relative positions, arrange that along the vehicle longitudinal axis the unsteady swinging strut 9 of S. A. support 10 and both sides constitutes " ten " shapes, and support subframe weight together.
The diesis that Fig. 5 shows the embodiment of the invention revolves axle and floats and be connected and fixed a device and remove the scheme drawing of going up dress.As shown in Figure 5, beam structure 11 is connected with main car frame, and S. A. support 10 is installed on the beam structure 11.
Fig. 6 a is the S. A. support scheme drawing of the embodiment of the invention; Fig. 6 b is the left view of S. A. support shown in Fig. 6 a.Shown in Fig. 6 a and 6b, S. A. support 10 comprises S. A. support upper bracket 16, S. A. rack shaft 17 and S. A. support undersetting 18, S. A. rack shaft 17 passes the connecting bore between S. A. support upper bracket 16 and the S. A. support undersetting 18, thereby makes S. A. support upper bracket 16 to rotate with respect to S. A. support undersetting 18.S. A. support upper bracket 16 is installed on the subframe, and S. A. support undersetting 18 is installed on the beam structure 11 that is connected with main car frame.
The cross section of S. A. support upper bracket 16, S. A. support undersetting 18 can be U-shaped, flute profile, L shaped etc., according to vehicle the cross sectional shape that S. A. support upper bracket 16 and S. A. support undersetting 18 are determined or selected to actual conditions is installed.
Above-mentioned S. A. support 10 integral structures are rigidity, and locating pair vehicle frame 8 plays main positioning action with respect to the position of main car frame 7, and is rotatable.
Fig. 8 a and 8b show the beam structure 11 that the S. A. support is installed.Shown in Fig. 8 a and 8b, beam structure 11 comprises crossbeam 81, connects support 82.The crossbeam 81 of beam structure 11 connects by being connected support 82 with main car frame 7, and S. A. support undersetting 18 is installed on the crossbeam 81, and crossbeam 81 does not contact with main car frame 7, and crossbeam 81 is fixing with main car frame 7 by connecting support 82.The structure or the form that connect support 82 are not limit, and can adopt any connection support of any prior art, can adopt unsteady connection support 9 of the present invention or S. A. support 10 yet.The upper bracket 16 of S. A. support 10 is installed on the subframe.S. A. support 10 fixed joint vehicle frames and main car frame relative position, two vehicle frames can rotate.
Fig. 7 a is the unsteady swinging strut structural representation of the embodiment of the invention; Fig. 7 b floats the swinging strut structure along the B-B cutaway view shown in Fig. 7 a.Shown in Fig. 7 a and 7b, the swinging strut 9 that floats comprises upper bracket 12, elastic caoutchouc 13, swinging strut rotating shaft 15, undersetting 14 float.Float swinging strut rotating shaft 15 in the shaft hole of upper bracket 12, elastic caoutchouc 13 is installed in the swinging strut rotating shaft 15 of floating, elastic caoutchouc 13 is the drum coaxial with unsteady swinging strut rotating shaft 15, elastic caoutchouc 13 is installed in the shaft hole of undersetting 14, the shaft hole of undersetting 14 parcel elastic caoutchouc 13.The shaft hole of the shaft hole of upper bracket 12, undersetting 14, elastic caoutchouc 13 link together through rotating shaft 15.The swinging strut rotating shaft 15 of floating can be floated in the shaft hole of upper bracket 12 and undersetting 14.
The cross section of upper bracket 12, undersetting 14 can be U-shaped, flute profile, L shaped etc., according to vehicle the cross sectional shape that rami posterior superior seat 12 and undersetting 14 are determined or selected to actual conditions is installed.
Two pairs of unsteady swinging struts 9 are installed in the both sides of main car frame 7, and unsteady swinging strut 9 locating pair vehicle frames 8 play main positioning action with respect to the position of main car frame 7.The swinging strut that floats is rotatable, can float, and be rotatable floating structure, can do little displacement, mainly do not limit along vehicle frame longitudinal bending and the caused rotational freedom of distortion.The left and right sides along vehicle frame arranges a pair of unsteady swinging strut 9 formation one pivot center, and axis floats.
The quantity of unsteady swinging strut is pressed desirable strength and is calculated definite.
Support subframe weight together along the S. A. support of vehicle longitudinal axis layout and the unsteady swinging strut of arranging along the vehicle frame both sides.
The application of the invention, distortion causes main car frame or goes up dress and deforms and damage in the time of can preventing effectively that vehicle from travelling.
Because subframe is the connected body of going up between dress and the main car frame, is a middleware.The vertical unsteady connecting device of axle that revolves can be born the connection identical with subframe, carrying, protection, vibration isolation effect, so the part vehicle can cancel subframe, directly installs and adorns 19.Under the situation of cancellation subframe, " subframe " mentioned above can replace with " go up dress bottom beam structure ", and the bottom beam structure of last dress is passed through the S. A. support and is connected with main car frame 7 with unsteady swinging strut, on adorn 19 and directly do not contact with main car frame 7.
The concrete structure of the connection mode among the present invention should be optimized according to the structural adjustment of vehicle actual installation.
More than the description of embodiments of the invention only is used for explanation technical scheme of the present invention; rather than limitation of the scope of the invention; the present invention 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 scope of the present invention.
Claims (10)
1. a cross that is used for the carriage frame connection revolves the unsteady connecting device of axle, it is characterized in that: comprise unsteady swinging strut (9), S. A. support (10), S. A. support (10) is installed in vehicle longitudinal axis front portion and rear portion, two pairs of unsteady swinging struts (9) are installed in the both sides of main car frame (7), the S. A. support of installing along the vehicle longitudinal axis (10) and the unsteady swinging strut (9) that is installed in main car frame (7) both sides constitute " ten " font, and subframe (8) is connected with main car frame (7) by unsteady swinging strut (9), S. A. support (10).
2. cross according to claim 1 revolves the unsteady connecting device of axle, and it is characterized in that: S. A. support (10) comprises S. A. support upper bracket (16), S. A. rack shaft (17) and S. A. support undersetting (18); S. A. rack shaft (17) passes the connecting bore between S. A. support upper bracket (16) and the S. A. support undersetting (18), thereby makes S. A. support upper bracket (16) to rotate with respect to S. A. support undersetting (18).
3. cross according to claim 2 revolves the unsteady connecting device of axle, it is characterized in that: S. A. support (10) is installed on the beam structure (11), beam structure (11) comprises crossbeam (81), connects support (82), the crossbeam (81) of beam structure (11) connects by being connected support (82) with main car frame (7), S. A. support undersetting (18) is installed on the crossbeam (81), and S. A. support upper bracket (16) is connected with subframe (8).
4. cross according to claim 1 revolves the unsteady connecting device of axle, it is characterized in that: the swinging strut (9) that floats comprises upper bracket (12), elastic caoutchouc (13), swinging strut rotating shaft (15), undersetting (14) float, float swinging strut rotating shaft (15) in the shaft hole of upper bracket (12), elastic caoutchouc (13) is installed in the swinging strut rotating shaft (15) of floating and in the shaft hole of undersetting (14), upper bracket (12) is connected with subframe (8), and undersetting (14) is connected with main car frame (7).
5. cross according to claim 2 revolves the unsteady connecting device of axle, it is characterized in that: the swinging strut (9) that floats comprises upper bracket (12), elastic caoutchouc (13), swinging strut rotating shaft (15), undersetting (14) float, float swinging strut rotating shaft (15) in the shaft hole of upper bracket (12), elastic caoutchouc (13) is installed in the swinging strut rotating shaft (15) of floating and in the shaft hole of undersetting (14), upper bracket (12) is connected with subframe (8), and undersetting (14) is connected with main car frame (7).
6. cross according to claim 3 revolves the unsteady connecting device of axle, it is characterized in that: the swinging strut (9) that floats comprises upper bracket (12), elastic caoutchouc (13), swinging strut rotating shaft (15), undersetting (14) float, float swinging strut rotating shaft (15) in the shaft hole of upper bracket (12), elastic caoutchouc (13) is installed in the swinging strut rotating shaft (15) of floating and in the shaft hole of undersetting (14), upper bracket (12) is connected with subframe (8), and undersetting (14) is connected with main car frame (7).
7. the described cross of arbitrary claim according to claim 4-6 revolves the unsteady connecting device of axle, and it is characterized in that: elastic caoutchouc (13) is the drum coaxial with unsteady swinging strut rotating shaft (15).
8. cross according to claim 7 revolves the unsteady connecting device of axle, it is characterized in that: elastic element elasticity of substitution rubber.
9. the described cross of arbitrary claim according to claim 2-6 revolves the unsteady connecting device of axle, and it is characterized in that: the cross section of upper bracket (12), undersetting (14) is U-shaped, flute profile or L shaped; The cross section of S. A. support upper bracket (16), S. A. support undersetting (18) can be U-shaped, flute profile or L shaped.
10. the described cross of arbitrary claim according to claim 1-6 revolves the unsteady connecting device of axle, it is characterized in that: the bottom beam structure that goes up dress substitutes subframe (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105687675A CN103192878A (en) | 2012-12-24 | 2012-12-24 | Cross-shaped rotating shaft floating connection device for connection of frames of vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105687675A CN103192878A (en) | 2012-12-24 | 2012-12-24 | Cross-shaped rotating shaft floating connection device for connection of frames of vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103192878A true CN103192878A (en) | 2013-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105687675A Pending CN103192878A (en) | 2012-12-24 | 2012-12-24 | Cross-shaped rotating shaft floating connection device for connection of frames of vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103192878A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5038105Y2 (en) * | 1971-06-17 | 1975-11-05 | ||
| JP2009057154A (en) * | 2007-08-31 | 2009-03-19 | Shin Meiwa Ind Co Ltd | Refuse collecting vehicle |
| CN102501901A (en) * | 2011-10-31 | 2012-06-20 | 北京三兴汽车有限公司 | Full floating connecting support |
| CN203211384U (en) * | 2012-12-24 | 2013-09-25 | 北京三兴汽车有限公司 | Cross-shaped rotating shaft floating connection device for vehicle frame connection |
-
2012
- 2012-12-24 CN CN2012105687675A patent/CN103192878A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5038105Y2 (en) * | 1971-06-17 | 1975-11-05 | ||
| JP2009057154A (en) * | 2007-08-31 | 2009-03-19 | Shin Meiwa Ind Co Ltd | Refuse collecting vehicle |
| CN102501901A (en) * | 2011-10-31 | 2012-06-20 | 北京三兴汽车有限公司 | Full floating connecting support |
| CN203211384U (en) * | 2012-12-24 | 2013-09-25 | 北京三兴汽车有限公司 | Cross-shaped rotating shaft floating connection device for vehicle frame connection |
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