CN203902194U - Single-point hanging device - Google Patents
Single-point hanging device Download PDFInfo
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- CN203902194U CN203902194U CN201420290051.8U CN201420290051U CN203902194U CN 203902194 U CN203902194 U CN 203902194U CN 201420290051 U CN201420290051 U CN 201420290051U CN 203902194 U CN203902194 U CN 203902194U
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Abstract
The utility model discloses a single-point hanging device which comprises a first axle assembly and a second axle assembly. The first axle assembly and the second axle assembly are used for installing a tire. The device further comprises a middle shaft platform, a middle shaft, multiple shear springs, multiple variable rigidity springs, a first balance beam structure and a second balance beam structure, wherein the middle shaft platform and the middle shaft are fixedly connected with a car frame, the shear springs are arranged on two side plates of the middle shaft platform and are fixedly connected with the middle shaft, the variable rigidity springs are arranged on the lower side of a top plate of the middle shaft platform and are fixedly connected with the middle shaft, the first balance beam structure and the second balance beam structure are connected with the two ends of the middle shaft respectively, and the two ends of the first balance beam structure are fixedly connected with the first axle assembly and the second axle assembly respectively. According to the single-point hanging device, a traditional single-point hanging device composed of steel plate springs is changed, the single-point hanging device can bear more loads, the shock absorbing effect of the single-point hanging device is improved, the service life of the single-point hanging device is prolonged, and light weight of the single-point hanging device can be achieved.
Description
Technical field
The utility model relates to a kind of suspension gear, in particular a kind of utilize that rubber spring makes for the vehicle frame of trailer or superimposed trailer and the single-point suspension of tire.
Background technology
The existing single-point suspension for trailer and superimposed trailer, as shown in Figure 1, adopt steel spring 101 to make damper element, level is arranged on the two ends of middle axle assembly, axle assembly and axle unit in connecting, steel spring is by multi-disc metal sheet, to be stacked up to manufacture to form.
Yet, adopt steel spring to exist following shortcoming as damper element:
1, steel spring manufacturing process is complicated, and quality can not guarantee.
2, steel spring volume and weight is larger, causes single-point to hang self heaviness, has reduced effective carrying of vehicle, increases oil consumption.
3, when vehicle is unloaded, steel spring is difficult for producing deformation, and damping effect is limited, and when the rugged road surface of vehicle process, the impulsive force that axletree is subject to road surface is larger, and copper sheathing wearing and tearing are very fast, affect service life.Meanwhile, the noise producing because of impulsive force is also larger.
4, when vehicle heavy duty, steel spring pressurized camber diminishes, and vehicle chassis reduces, and between steel plate, friction force increases, and long-term use easily produces displacement, affects service life.
5, steel spring gets rusty easily after weathering, thereby affects in-use performance, to lubricated having relatively high expectations.
6, traditional single-point hangs and can only can not reduce the anti-rolling stability of vehicle to left and right tire adjustment to front and back tire adjustment, affects ride quality.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of single-point suspension, is intended to solve single-point suspension heaviness, damping effect is bad and service life is short problem.
For reaching above-mentioned purpose, the technical solution of the utility model is as follows:
A single-point suspension, comprises the first axle unit and the second axle unit for mounting tyre, also comprises:
The middle shaft platform being fixedly connected with vehicle frame and an axis;
Several are arranged on the biside plate of middle shaft platform and the shear spring being fixedly connected with axis, and several are arranged on the top board downside of middle shaft platform and the variable rate spring being fixedly connected with axis;
The first balance beam structure being connected with axis two ends and the second balance beam structure;
Wherein, the two ends of the first balance beam structure are fixedly connected with the first axle unit and the second axle unit respectively, and the two ends of the second balance beam structure are fixedly connected with the first axle unit and the second axle unit respectively.
Described single-point suspension, wherein, described axis two ends are fixedly connected on the beam center of the first balance beam structure and the second balance beam structure by U-bolt.
Described single-point suspension, wherein, described the first balance beam structure and described the second balance beam structure are all fixedly connected with by bottom bracket with axis, between described axis and bottom bracket, be provided with axis copper sheathing, and axis copper sheathing both sides set gradually respectively oil seal washer and oil seal seat, and the base of bottom bracket is fixed on the backing plate of balance beam structure by U-bolt.
Described single-point suspension, wherein, described first, second balance beam structure comprises that respectively two ends are provided with the square tube of knock hole and are arranged on square tube center for the backing plate of U-bolt is installed.
Described single-point suspension, wherein, described square tube, its material is low-carbon alloy steel, by hollow circular-tube by the side's of pushing away machine be squeezed into square after, then form through heat treatment process.
Described single-point suspension, wherein, three contour variable rate springs are set, wherein, the first variable rate spring, the second variable rate spring and the 3rd variable rate spring keep certain distance with the first top board, the second top board and the 3rd top board of middle shaft platform respectively, and the distance between the first variable rate spring and the first top board equals the distance between the 3rd variable rate spring and the second top board, be less than the distance of the second variable rate spring and the second top board.
Described single-point suspension, wherein, be arranged on described axis for fixed shear spring or/and the spring perch of variable rate spring, described shear spring is arranged between axis platform side plate and spring perch side plate, described variable rate spring is arranged between axis platform top and spring perch top board.
Described single-point suspension, wherein, described middle shaft platform is symmetricly set on through axis center and perpendicular to the both sides of the axial vertical plane of axis, two shear springs is set respectively on the biside plate of middle shaft platform.
Described single-point suspension, wherein, described the first balance beam structure and described the second balance beam structure be arranged in parallel, and vertical with the axis direction of the first axle unit or the first axle unit.
Described single-point suspension, wherein, described variable rate spring comprises the elastic body made by elastomeric material, be arranged on elastic body bottom and the steel plate being wrapped up by elastic body and be arranged at least one mounting hole for mounting fastener of described elastic body bottom.
Described single-point suspension, wherein, described shear spring comprises elastic body, a plurality of steel plate that is arranged in elastic body and is wrapped up by elastic body made by elastomeric material, is arranged on a plurality of mounting holes for mounting fastener at described elastic body top and is arranged on a plurality of mounting holes for mounting fastener of described elastic body bottom.
Described single-point suspension, wherein, described shear spring and/or variable rate spring by fastener direct or indirect be installed on axle assembly.
Described single-point suspension, wherein, also comprises and is provided with 1 centre hole and 4 lateral opening pressing plates, wherein, described centre hole, corresponding with the knock hole being arranged in square tube, for pressing plate is fixed on to balance beam structure; Described lateral opening, for U-bolt is installed, by U-bolt, balance beam structure is fixedly connected with axle unit.
Compared with prior art, a kind of single-point suspension provided by the utility model, changed the single-point suspension that traditional steel spring forms, adopted rubber spring (variable rate spring and shear spring) to replace steel spring, its benefit be embodied in following some:
1), when variable rate spring is subject to load, its rigidity, along with the increase of load also increases thereupon, can make single-point suspension bear more load; The structure design of variable rate spring, makes it have enough elasticity and rigidity, can increase single-point suspension damping effect and service life.
2) shear spring is by the forming of the steel plate at elastomeric material and a plurality of intervals, and makes after its long-time bearing not yieldingly and damaged, increased fatigue resistance; The impact resistance of shear spring is strong, and when bearing shearing force, balance and disperse load, keeps the stationarity of platform well.
3), because single-point suspension adopts variable rate spring and shear spring, make the installation of single-point suspension and dismounting all simple.
4) structure that in, axle assembly is connected by Rubber Parts is got and has been replaced traditional rigid construction, and the ability of rubber impact-absorbing power is better than iron and steel, can effectively cushion bottom bracket and the suffered impulsive force of middle shaft platform, makes bottom bracket more durable; Middle axle assembly is assigned on each wheel after load can being regulated automatically, realizes the steady of driving.
5) equalizing bar has promoted tractive force, stability and operability between axletree.Replace steel spring, not only avoided the manufacturing process of steel spring complexity, also reduced and hung deadweight, take 32T as example, suspended weights can reduce more than 40%, reduces oil consumption, has improved capacity weight, meanwhile, and the noise of also having avoided impulsive force to produce.
Accompanying drawing explanation
Fig. 1 is the structural representation that adopts the single-point suspension of steel spring making.
Fig. 2 is the structural representation of the single-point suspension described in the utility model one preferred embodiment.
Fig. 3 is the local side figure of single-point suspension described in the utility model.
Fig. 4 is that the single-point suspension shown in Fig. 2 is crossed axis mid point and the generalized section vertical with axis axis.
Fig. 5 is that the single-point suspension shown in Fig. 2 is crossed axis axis and generalized section straight up.
Fig. 6 is the structural representation of the balance beam structure shown in Fig. 2.
Fig. 7 is the generalized section of the shear spring described in the utility model one embodiment.
Fig. 8 is the generalized section of the variable rate spring described in the utility model one embodiment.
Fig. 9 is arranged on the partial exploded view of the connection structure between balance beam structure and middle axle assembly.
The specific embodiment
The utility model provides a kind of single-point suspension, for making the purpose of this utility model, technical scheme and effect clearer, clear and definite, referring to accompanying drawing examples, the utility model is further described.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Fig. 2 is the structural representation of the single-point suspension described in the utility model one preferred embodiment.As shown in Figure 2, a kind of single-point suspension described in the utility model, comprises the first axle unit 206 and the second axle unit 203 for mounting tyre, also comprises the middle shaft platform 208 and the axis 205 that are fixedly connected with vehicle frame; Several are arranged on the biside plate of middle shaft platform and the shear spring 202 being fixedly connected with axis, and several are arranged on the top board downside of middle shaft platform and the variable rate spring (not shown) being fixedly connected with axis; The first balance beam structure 204 being connected with axis 205 two ends and the second balance beam structure 207; Wherein, the two ends of the first balance beam structure 204 are fixedly connected with the first axle unit 206 and the second axle unit 203 respectively, and the two ends of the second balance beam structure 207 are fixedly connected with 203 with the first axle unit 206 and the second axle unit respectively.Described middle shaft platform is symmetricly set on through axis center and perpendicular to the both sides of the axial vertical plane of axis, two shear springs is set respectively on the biside plate of middle shaft platform, and for ease of installing, the top of side plate is designed with chamfering.
Described single-point suspension, between axis and middle shaft platform, adopt Rubber Parts connection structure, replaced traditional Plate Welding rigid construction, rubber has good damping effect, reduced to greatest extent the impulsive force that vehicle is subject to, increased service life, actv. balance driving comfort and road-holding property; Between axis and axle unit, by balance beam structure, be connected, replaced traditional steel spring, exempt to lubricate, reduce noise, reduced the deadweight of hanging, improved capacity weight.
Single-point suspension as above, preferred, described the first balance beam structure and described the second balance beam structure be arranged in parallel, and vertical with the axis direction of the first axle unit or the first axle unit.The wheel that single-point suspension is connected is symmetrical, when stressed, and can be by the stressed connected wheel of dividing equally.
Refer to Fig. 3 and Fig. 4, Fig. 3 is the local side figure of single-point suspension described in the utility model; Fig. 4 is that the single-point suspension shown in Fig. 2 is crossed axis mid point and the generalized section vertical with axis axis.As shown in Figures 3 and 4, balance beam structure 303 is fixedly connected with axis 305 by U-bolt 302; On described axis 305, be provided with for fixed shear spring 404 or/and the spring perch of variable rate spring 407 (being formed by top board 403 and side plate 402), described shear spring 404 is arranged between middle shaft platform 301 side plates 401 and spring perch side plate 402, and described variable rate spring 407 is arranged between middle shaft platform 301 top boards 406 and spring perch top board 403.Described balance beam structure 303 is fixedly connected on axle unit 304.Wherein, described axis 305 two ends are fixedly connected on the center of balance beam structure (comprising the first balance beam structure and the second balance beam structure) 303 by U-bolt 302.
Fig. 5 is that the single-point suspension shown in Fig. 2 is crossed axis axis and generalized section straight up.As shown in Figure 5, described single-point suspension is provided with three variable rate springs 504, and variable rate spring 504 is arranged on billet 502, and billet 502 is fixed on middle axle assembly 501, and variable rate spring 504 upper surfaces hold middle shaft platform 503.Three variable steel-degree springs that arrange, wherein, three contour variable rate springs are set, wherein, be arranged on the first variable rate spring of both sides and the first top board and the 3rd top board that the 3rd variable rate spring holds respectively middle shaft platform, the second variable rate spring in the middle of being arranged on is apart from the second top board certain distance.Certainly, the first variable rate spring, the second variable rate spring and the 3rd variable rate spring can also be kept to certain distance with the first top board, the second top board and the 3rd top board of middle shaft platform respectively, and make the distance between the first variable rate spring and the first top board equal the distance between the 3rd variable rate spring and the second top board, be less than the distance of the second variable rate spring and the second top board.
Fig. 6 is the structural representation of the balance beam structure shown in Fig. 2.As shown in Figure 6, described balance beam structure comprises that two ends are provided with the square tube 204 of knock hole 602 and are arranged on square tube center for the backing plate 601 of U-bolt is installed.The material of described square tube is low-carbon alloy steel, square tube 204 add technique be by hollow circular-tube by the side's of pushing away machine be squeezed into square after, then form through heat treatment process.Can balance beam structure be positioned on axletree by knock hole 602, by pin, balance beam structure be connected with axle unit.Described equalizing bar square tube is formed by the low-carbon alloy solid drawn pipe side of pushing away, and has avoided the defect of welded-steel plate construction, has simplified technique, has improved performance and intensity.
Fig. 7 is the generalized section of the shear spring described in the utility model one embodiment.As shown in Figure 7, the elastic body 702 that described shear spring is made by elastomeric material, a plurality of steel plate that is arranged in elastic body and is wrapped up by elastic body 701, a plurality of mounting holes for mounting fastener that are arranged on a plurality of mounting holes for mounting fastener at described elastic body top and are arranged on described elastic body bottom form, wherein, described a plurality of steel plates and elastic body bottom surface be arranged in parallel; Described elastic body bottom surface is oblong or square, if oblong, the ratio of length and width is 1:1.8; Described elastomeric material is poly-chloroprene rubber or natural rubber, and hardness is between 50-80HA; Described elastic body end face is oblong or square, be set in parallel in directly over described elastic body bottom surface, and described elastomeric top surface area equates with described elastomeric base area.Described shear spring, preferably, described elastic body bottom and top arrange respectively six mounting holes, on two relative limits at described elastic body bottom and top, be respectively arranged with three mounting holes, and the distance between the center shaft of two adjacent mounting holes equates, the central axes of three mounting holes and in a face.
Fig. 8 is the generalized section of the variable rate spring described in the utility model one embodiment.As shown in Figure 8, the elastic body 802 that described variable rate spring is made by elastomeric material, at least one mounting hole for mounting fastener that is arranged on elastic body bottom and the steel plate 801 being wrapped up by elastic body and is arranged on described elastic body bottom form.Described variable rate spring, wherein, described steel plate and elastic body bottom surface be arranged in parallel; Described elastic body bottom surface is oblong or square, if oblong, the ratio of length and width is 1:1.8; Described elastomeric material is poly-chloroprene rubber or natural rubber, and hardness is between 50-80HA; Described elastic body end face is oblong or square, be set in parallel in directly over described elastic body bottom surface, and described elastic body top surface area is less than described elastic body base area; The oblong center of the oblong center of described elastic body end face or square center and described elastic body bottom surface or square are centered close on the straight line of same perpendicular to elastic body end face.Described variable rate spring, preferred, at oblong or foursquare four angles of described elastic body bottom, one mounting hole is set respectively.
It should be noted that, shear spring described in the utility model and/or variable rate spring are in fastener is directly installed on axle assembly, without other attaching partss, make single-point suspension described in the utility model install and dismantle all comparatively simple, and, by shear spring and variable rate spring, make single-point suspension structure extremely simple.
Please continue to participate in Fig. 2, described single-point suspension, also comprises and is provided with 1 centre hole and 4 lateral opening pressing plates 201, wherein, described centre hole, corresponding with the knock hole being arranged in square tube, for pressing plate is fixed on to balance beam structure; Described lateral opening, for U-bolt is installed, by U-bolt, balance beam structure is fixedly connected with axle unit.
Refer to Fig. 9, Fig. 9 is arranged on the partial exploded view of the connection structure between balance beam structure and middle axle assembly.As shown in Figure 9, balance beam structure 907 is fixedly connected with by bottom bracket 904 with axis 901, between described axis 901 and bottom bracket 904, be provided with axis copper sheathing 905, and axis copper sheathing both sides set gradually respectively oil seal washer 903 and oil seal seat 902(opposite side is not shown).The base of bottom bracket 904 is fixed on the backing plate 906 of balance beam structure 907 by U-bolt.
It is emphasized that single-point suspension provided by the utility model, axis has certain rotational angle on fore-and-aft direction, and in the situation that not considering tire, rotational angle is about 0 °～45 °.Because the Rubber Parts between platform and axis has enough elasticity and rigidity, rubber spring has good stretch ratio, and there is soft rubber leaf spring cover for seat at the position that balance beam structure is connected with axletree.Middle axle assembly can not only regulate the balance of front and back tire, also can regulate the balance of left and right tire.
In sum, a kind of single-point suspension provided by the utility model, changed the single-point suspension that traditional steel spring forms, adopted rubber spring (variable rate spring and shear spring) to replace steel spring, its benefit is: when variable rate spring is subject to load, its rigidity, along with the increase of load also increases thereupon, can make single-point suspension bear more load; The structure design of variable rate spring, makes it have enough elasticity and rigidity, can increase single-point suspension damping effect and service life; Shear spring consists of the steel plate at elastomeric material and a plurality of intervals, makes after its long-time bearing not yieldingly and damaged, has increased fatigue resistance; The impact resistance of shear spring is strong, and when bearing shearing force, balance and disperse load, keeps the stationarity of platform well; Because single-point suspension adopts variable rate spring and shear spring, make the installation of single-point suspension and dismounting all simple; The structure that middle axle assembly is connected by Rubber Parts is got and has been replaced traditional rigid construction, and the ability of rubber impact-absorbing power is better than iron and steel, can effectively cushion bottom bracket and the suffered impulsive force of middle shaft platform, makes bottom bracket more durable; Middle axle assembly is assigned on each wheel after load can being regulated automatically, realizes the steady of driving; Equalizing bar has promoted tractive force, stability and operability between axletree.Replace steel spring, not only avoided the manufacturing process of steel spring complexity, also reduced and hung deadweight, take 32T as example, suspended weights can reduce more than 40%, reduces oil consumption, has improved capacity weight, meanwhile, and the noise of also having avoided impulsive force to produce.
Should be understood that; application of the present utility model is not limited to above-mentioned giving an example; for those of ordinary skills, can be improved according to the above description or convert, all these improvement and conversion all should belong to the protection domain of the utility model claims.
Claims (10)
1. a single-point suspension, comprises the first axle unit and the second axle unit for mounting tyre, it is characterized in that, also comprises:
The middle shaft platform being fixedly connected with vehicle frame and an axis;
Several are arranged on the biside plate of middle shaft platform and the shear spring being fixedly connected with axis, and several are arranged on the top board downside of middle shaft platform and the variable rate spring being fixedly connected with axis;
The first balance beam structure being connected with axis two ends and the second balance beam structure;
Wherein, the two ends of the first balance beam structure are fixedly connected with the first axle unit and the second axle unit respectively, and the two ends of the second balance beam structure are fixedly connected with the first axle unit and the second axle unit respectively.
2. single-point suspension according to claim 1, is characterized in that,
Described the first balance beam structure and described the second balance beam structure are all fixedly connected with by bottom bracket with axis, between described axis and bottom bracket, be provided with axis copper sheathing, and axis copper sheathing both sides set gradually respectively oil seal washer and oil seal seat, and the base of bottom bracket is fixed on the backing plate of balance beam structure by U-bolt.
3. single-point suspension according to claim 1 and 2, is characterized in that,
Described first, second balance beam structure comprises that respectively two ends are provided with the square tube of knock hole and are arranged on square tube center for the backing plate of U-bolt is installed.
4. single-point suspension according to claim 3, is characterized in that, described square tube, its material is low-carbon alloy steel, by hollow circular-tube by the side's of pushing away machine be squeezed into square after, then form through heat treatment process.
5. single-point suspension according to claim 1, is characterized in that, also comprises:
Be arranged on described axis for fixed shear spring or/and the spring perch of variable rate spring, described shear spring is arranged between axis platform side plate and spring perch side plate, described variable rate spring is arranged between axis platform top and spring perch top board.
6. single-point suspension according to claim 1, is characterized in that, described middle shaft platform is symmetricly set on through axis center and perpendicular to the both sides of the axial vertical plane of axis, two shear springs is set respectively on the biside plate of middle shaft platform.
7. single-point suspension according to claim 1, it is characterized in that, described variable rate spring comprises the elastic body made by elastomeric material, be arranged on elastic body bottom and the steel plate being wrapped up by elastic body and be arranged at least one mounting hole for mounting fastener of described elastic body bottom.
8. single-point suspension according to claim 1, it is characterized in that, described shear spring comprises elastic body, a plurality of steel plate that is arranged in elastic body and is wrapped up by elastic body made by elastomeric material, be arranged on a plurality of mounting holes for mounting fastener at described elastic body top and be arranged on a plurality of mounting holes for mounting fastener of described elastic body bottom.
9. according to claim 1,7 and 8 arbitrary described single-point suspensions, it is characterized in that, described shear spring and/or variable rate spring by fastener direct or indirect be arranged on axle assembly.
10. single-point suspension according to claim 1, is characterized in that, also comprise,
Be provided with 1 centre hole and 4 lateral opening pressing plates, wherein, described centre hole, corresponding with the knock hole being arranged in square tube, for pressing plate is fixed on to balance beam structure; Described lateral opening, for U-bolt is installed, by U-bolt, balance beam structure is fixedly connected with axle unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420290051.8U CN203902194U (en) | 2014-06-03 | 2014-06-03 | Single-point hanging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420290051.8U CN203902194U (en) | 2014-06-03 | 2014-06-03 | Single-point hanging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203902194U true CN203902194U (en) | 2014-10-29 |
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ID=51776485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420290051.8U Withdrawn - After Issue CN203902194U (en) | 2014-06-03 | 2014-06-03 | Single-point hanging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203902194U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104002633A (en) * | 2014-06-03 | 2014-08-27 | 佛山市何氏协力机械制造有限公司 | Single-point suspension device |
-
2014
- 2014-06-03 CN CN201420290051.8U patent/CN203902194U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104002633A (en) * | 2014-06-03 | 2014-08-27 | 佛山市何氏协力机械制造有限公司 | Single-point suspension device |
| WO2015184842A1 (en) * | 2014-06-03 | 2015-12-10 | 佛山市何氏协力机械制造有限公司 | Single-point suspension device |
| CN104002633B (en) * | 2014-06-03 | 2016-01-13 | 佛山市何氏协力机械制造有限公司 | Single-point suspension |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141029 Effective date of abandoning: 20160113 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |