CN210082851U - Two-connecting-rod kangaroo leg-imitating suspension - Google Patents
Two-connecting-rod kangaroo leg-imitating suspension Download PDFInfo
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- CN210082851U CN210082851U CN201920817873.XU CN201920817873U CN210082851U CN 210082851 U CN210082851 U CN 210082851U CN 201920817873 U CN201920817873 U CN 201920817873U CN 210082851 U CN210082851 U CN 210082851U
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- connecting rod
- shock absorber
- suspension
- rod
- kangaroo
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Abstract
The utility model provides a two connecting rods imitate kangaroo leg suspension, belong to car suspension technical field, aim at is in order to solve the new design thinking problem of car suspension, borrow the limb structure and the function of kangaroo leg for reference, provide a two connecting rods imitate kangaroo leg suspension, including the connecting plate, the guide arm, connecting rod one, connecting rod two, shock absorber one and shock absorber two, the connecting plate is located the bottom of automobile body, the surface of connecting plate is equipped with the guide rail, guide arm and guide rail sliding fit, the one end of guide arm is connected with the axis of wheel, the one end of connecting rod one is connected with the axis of wheel, the one end of connecting rod two is articulated with the connecting plate, the other end is articulated with connecting rod one, the one end of shock absorber one is articulated with the tip of connecting rod one, the other end is articulated with the. The utility model discloses the dynamic property of car has been guaranteed. Compared with the common suspension, the shock absorber has the advantages of small loss and long service life on a pothole road surface.
Description
Technical Field
The utility model belongs to the technical field of automobile suspension structure, concretely relates to imitative kangaroo leg suspension of two connecting rods.
Background
The automobile suspension is a general term for all force transmission connecting devices between a frame (or a bearing type automobile body) and an axle (or a wheel). Its function is to transmit the vertical reaction (supporting force), longitudinal reaction (driving force and braking force) and lateral reaction on the wheel and the moment caused by these reactions to the frame (or bearing body) to ensure the normal running of the car. The performance of the automobile is an important factor influencing the smoothness and the operating stability of the automobile.
It is well known that kangaroos do not walk, only jump, or run ahead with the help of the forefeet and hind legs. The kangaroo runs fast by jumping with the lower limbs, the kangaroo runs by jumping, the kangaroo can jump to 4 meters at most and 13 meters at most, and the speed per hour can reach more than 50 kilometers. Maintaining body balance and smoothness during continuous high intensity jumping maneuvers is a fundamental skill of kangaroos. As illustrated in fig. 1, the basic body structure of kangaroo. Comprises a head, a trunk, forelimbs, thighs, cruses, feet, toes and a tail; wherein the thigh and the trunk are connected through a hip joint A, the thigh and the shank are connected through a knee joint B, the shank and the foot are connected through an ankle joint C, and the foot and the toe are connected through a toe joint D. The jumping function of kangaroo can be perfectly realized by matching thighs, shanks, feet and toes.
At present, researches on bionic machines simulating Kangaroo jumping have achieved great results, and Kangaroo jumping boards, jumping automobiles and the like are manufactured. The research mostly stays on 'jumping' movement, and the bionic buffer research of the vehicle suspension is not common by utilizing the leg structure naturally evolved by kangaroo.
Application number 201810978338.2 discloses a technical scheme of a design method of a vertical performance parameter of a double-diamond Kangaroo leg imitating suspension for a vehicle, which is characterized in that a three-connecting-rod connecting structure with a ratio of a thigh bone connecting rod, a shank bone connecting rod and a foot bone connecting rod being 1:2:1 is constructed according to a Kangaroo leg structure, then two three-connecting-rod structures are crossed to form the double-diamond Kangaroo leg imitating suspension for the vehicle, thigh pneumatic artificial muscles are arranged between the thigh bone connecting rod and the shank bone connecting rod 5 in the longitudinal direction, a first spring damper is arranged between the thigh bone connecting rod and the shank bone connecting rod in the transverse direction, a second spring damper is arranged between the shank bone connecting rod and the foot bone connecting rod in the longitudinal direction, and shank pneumatic artificial muscles are arranged between the shank bone connecting rod and the foot bone connecting rod in the transverse direction.
Disclosure of Invention
The utility model discloses a solve the automobile and hang new design thinking problem, borrow the limb structure and the function of kangaroo leg for reference, provide an imitative kangaroo leg suspension of two connecting rods.
The utility model adopts the following technical scheme:
the utility model provides a two connecting rods imitative kangaroo leg suspension, including the connecting plate, the guide arm, connecting rod one, connecting rod two, shock absorber one and shock absorber two, the connecting plate is located the bottom of automobile body, the surface of connecting plate is equipped with the guide rail, guide arm and guide rail sliding fit, the one end of guide arm is connected with the axis of wheel, the one end of connecting rod one is connected with the axis of wheel, the one end of connecting rod two is articulated with the connecting plate, the other end is articulated with connecting rod one, the one end of shock absorber one is articulated with the tip of connecting rod one, the other end is articulated with the middle part of connecting rod two, wherein, the length of connecting rod two is A, the length between the pin joint of connecting rod one and wheel axis to the pin joint of connecting rod two and connecting rod one is B, the pin joint: b: c =2:1: 0.35.
The first shock absorber is a damping spring shock absorber.
And the second shock absorber is a damping spring shock absorber.
The utility model has the advantages as follows:
the utility model discloses with the bionic suspension mechanism that becomes the car of kangaroo's shank structure. The automobile suspension system can enable the automobile to pass through a rugged road more quickly, and the stability of the automobile suspension system is improved compared with that of an original suspension system, so that the automobile is flexible and not rigid in the driving process. The suspension not only has the characteristics of the four-leg automobile, but also ensures the dynamic property of the automobile. Compared with the common suspension, the shock absorber has the advantages of small loss and long service life on a pothole road surface.
Drawings
FIG. 1 shows the structure of the movement of the living body of Kangaroo;
fig. 2 is a schematic view of the structure of the present invention;
fig. 3 is a schematic rear view of the present invention;
fig. 4 is a schematic side view of the present invention;
fig. 5 is a schematic top view of the present invention;
fig. 6 is a schematic perspective view of the present invention;
fig. 7 is a simulation diagram of the present invention;
FIG. 8 is a static force analysis diagram of the present invention;
fig. 9 is a kinematic relationship diagram of wheel runout displacement and link angle of the present invention, wherein a is series 1 and b is series 2;
wherein: 1-connecting plate; 2-a guide rod; 3, connecting the first rod; 4-connecting rod two; 5, a first damper; 6-a second shock absorber; 7-a guide rail; 8-vehicle wheels.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in FIG. 7, for the simple linkage mechanism of the present invention, since the vehicle suspension is in the initial state of static balance most of the time, i.e. the wheel is not jumping up and down, only the stress of the rod member in the initial state is analyzed, and the length of the ab rod and the size of the β angle are determined in the initial static state.
And (3) setting ab = L, eb: ab: bc =2:1:0.35 and d point as the midpoint of the rod bc, and carrying out integral stress analysis on the structure.
As can be seen from fig. 7 and 8, the structure is subjected to the gravity of the vehicle body and the support force of the ground. Because the vehicle body acts on the two points of e and f, the force received by the points of e and f is G/2. Statically known, the force applied to the rod df is F2= G/(2sin θ), so when θ =90 °, F2And the minimum value is G/2. Vehicle body bottomThe height from the ground is H.
The following equation can be listed:
2Lsin α + sin (β - α) L = H, cos (β - α) L = (3 Lcos α)/2, in off road vehicles, H is 800mm, α =60 °, L is 3200 mm.
As shown in fig. 8, point P is the position of the pole of the linkage.
And (3) the ratio of the force borne by a single wheel to the force borne by the second shock absorber is 2:1, the stress ratio of the second damper to the first damper is 1:2,
ideally, the force applied to each wheel can be regarded as the force evenly distributed to each wheel by the overall weight of the vehicle body, that is, the weight distributed to each wheel is G/4, the force applied to each second shock absorber is G/8, and the force applied to each first shock absorber is G/4.
Such as: vehicle weight 1144kg (11212N)
The second upper weight (stress) of the shock absorber is G3=143kg(1401.5N)
The first weight (stress) of the shock absorber is G4=286kg(2803N)。
As shown in FIG. 9, the angle of the series 1 is α degrees, the angle of the series 2 is β degrees, and it can be seen from the motion relation diagrams that, in the stroke of-80 mm to +200mm of wheel hop, the variation range of the ankle joint angle β is 120.07 degrees to 64.88 degrees, and the variation range of the knee joint angle α is 65.49 degrees to 52.18 degrees.
Claims (3)
1. The utility model provides a two-bar linkage imitative kangaroo leg suspension which characterized in that: the automobile shock absorber comprises a connecting plate (1), a guide rod (2), a first connecting rod (3), a second connecting rod (4), a first shock absorber (5) and a second shock absorber (6), wherein the connecting plate (1) is located at the bottom of an automobile body, a guide rail (7) is arranged on the surface of the connecting plate (1), the guide rod (2) is in sliding fit with the guide rail (7), one end of the guide rod (2) is connected with a middle shaft of a wheel (8), one end of the first connecting rod (3) is connected with the middle shaft of the wheel (8), one end of the second connecting rod (4) is hinged to the connecting plate (1), the other end of the second connecting rod is hinged to the first connecting rod (3), one end of the first shock absorber (5) is hinged to the end of the first connecting rod (3), the other end of the second shock absorber (6) is hinged to the middle part of the connecting plate (1), the other end of the second connecting rod is hinged to the middle part of the second connecting rod (4), the length of the second connecting rod (4) is A The length between the connecting points is B, the length from the hinge point of the second connecting rod (4) and the first connecting rod (3) to the end part of the first connecting rod (3) is C, A: b: c =2:1: 0.35.
2. The two-link kangaroo-like leg suspension according to claim 1, wherein: the first shock absorber (5) is a damping spring shock absorber.
3. The two-link kangaroo-like leg suspension according to claim 1, wherein: the second shock absorber (6) is a damping spring shock absorber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920817873.XU CN210082851U (en) | 2019-06-03 | 2019-06-03 | Two-connecting-rod kangaroo leg-imitating suspension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920817873.XU CN210082851U (en) | 2019-06-03 | 2019-06-03 | Two-connecting-rod kangaroo leg-imitating suspension |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210082851U true CN210082851U (en) | 2020-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920817873.XU Expired - Fee Related CN210082851U (en) | 2019-06-03 | 2019-06-03 | Two-connecting-rod kangaroo leg-imitating suspension |
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| CN (1) | CN210082851U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111152617A (en) * | 2020-02-21 | 2020-05-15 | 太原科技大学 | Kangaroo leg-imitating suspension with arc-shaped shock absorber |
-
2019
- 2019-06-03 CN CN201920817873.XU patent/CN210082851U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111152617A (en) * | 2020-02-21 | 2020-05-15 | 太原科技大学 | Kangaroo leg-imitating suspension with arc-shaped shock absorber |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200218 Termination date: 20210603 |