CN210592135U - Rear suspension system of unmanned vehicle chassis - Google Patents
Rear suspension system of unmanned vehicle chassis Download PDFInfo
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- CN210592135U CN210592135U CN201921292382.4U CN201921292382U CN210592135U CN 210592135 U CN210592135 U CN 210592135U CN 201921292382 U CN201921292382 U CN 201921292382U CN 210592135 U CN210592135 U CN 210592135U
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- trailing arm
- axletree
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Abstract
The utility model discloses a suspension system behind unmanned aerial vehicle chassis, including back trailing arm, bumper shock absorber assembly, drive structure and two axletree assemblies, two axletree assemblies set up the left and right sides at back trailing arm relatively, and the drive structure sets up between two axletree assemblies, and drive structure and two axletree assemblies and fix in back trailing arm top, and bumper shock absorber assembly one end is articulated with the axletree assembly, and the other end and the frame of bumper shock absorber assembly are articulated. The utility model provides a suspension behind unmanned aerial vehicle chassis, the structure is simple relatively, and the drive structure is located the overall arrangement mode of trailing arm top, can effectively extend the vehicle axial and arrange the space, makes the trailing arm possess more commonality.
Description
Technical Field
The utility model belongs to the technical field of unmanned vehicles manufacture technique and specifically relates to a suspension system behind unmanned vehicles chassis.
Background
The suspension system is a general term for all force-transmitting connecting devices between a frame and an axle or a wheel of an automobile, and has the functions of transmitting force and moment acting between the wheel and the frame, buffering impact force transmitted to the frame or an automobile body from an uneven road surface and attenuating vibration caused by the impact force so as to ensure smooth running of the automobile. The suspension system should function to support the vehicle body and improve the ride, and different suspension arrangements will give the driver a different driving experience. The suspension system which looks like a simple appearance integrates various acting forces, determines the stability, comfort and safety of the automobile and is one of the key parts of the modern automobile. Rear suspension among the prior art adopts the mode of trailing arm or U type bolt fastening after the full encirclement more, because structural constraint, when vehicle chassis height is lower, the not enough condition of installation space can appear, is unfavorable for using high-power motor (high-power motor is bulky) and adopts, the fixed mode of U type bolt, installation mechanism is complicated relatively, has the installation inconvenient, overhauls the difficult condition.
Chinese patent application publication No. CN105291048A, published as 04.08.2017, entitled "high-load-bearing rear suspension system", discloses a high-load-bearing rear suspension system, which belongs to the field of rear suspension systems of small transportation vehicles, and the middle position of a leaf spring (1) is fixed on a rear axle through a U-shaped bolt (2), a nut I (3) and a pressing plate (4); the front end eye of the leaf spring (1) is connected with the front suspension eye through a leaf spring pin II (14), a leaf spring pin I (8) passes through the upper end of a leaf spring outer connecting plate (13), the rear end eye of the leaf spring (1) and the upper end of a leaf spring inner connecting plate (9) to be fixed at the back, and a leaf spring sleeve I (10) is arranged on the excircle of the leaf spring pin I (8); the other plate spring pin I (8) penetrates through the lower end of the plate spring outer connecting plate (13), the rear suspension lifting lug (5) and the lower end of the plate spring inner connecting plate (9) to be fixed, and a plate spring sleeve II (11) is arranged on the excircle of the plate spring pin I (8). The suspension system has good shock-absorbing effect and large bearing capacity; the vehicle body has a large roll angle and is not easy to roll over; the vehicle is safe and comfortable, and the performance is stable. However, in the patent, a connection mode of the U-shaped bolt is still adopted, the structure is relatively complex, and the disassembly and the assembly are inconvenient.
Disclosure of Invention
The utility model discloses an overcome among the prior art when vehicle chassis height is lower, the installation space can appear not enough, is unfavorable for using high-power motor's problem, provides a suspension behind unmanned aerial vehicle chassis, and the structure is simple relatively, and the drive structure is located the layout mode of trailing arm top, can effectively extend vehicle axial and arrange the space, makes the trailing arm possess more commonality.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a suspension system behind unmanned aerial vehicle chassis, includes back trailing arm, bumper shock absorber assembly, drive structure and two axletree assemblies, and two axletree assemblies set up the left and right sides at back trailing arm relatively, and drive structure sets up between two axletree assemblies, and drive structure and two axletree assemblies are fixed in back trailing arm top, and bumper shock absorber assembly one end is articulated with the axletree assembly, and the other end and the frame of bumper shock absorber assembly are articulated.
Among the above-mentioned technical scheme, the overall arrangement mode that drive structure is located back trailing arm top can effectively expand vehicle axial and arrange the space, makes the trailing arm possess more commonality. The shock absorber assembly is directly articulated with the axletree assembly and can directly carry out the shock attenuation through the shock absorber assembly, and the shock attenuation effect is better.
Preferably, the axle assembly comprises an axle body and a support frame, the support frame is fixed to the axle body, the support frame is connected with the rear trailing arm through a fixing bolt, and one end of the shock absorber assembly is hinged to the support frame. The structure has cancelled the mounting means that traditional suspension system well axletree assembly adopted U type bolt, directly fixes axletree assembly and back trailing arm through fixing bolt, when needing to install or dismantle the axletree assembly, only needs to screw up or unscrew fixing bolt, just can wholly install or take off the axletree assembly. The structure can effectively simplify the mechanism, improve the consistency of assembly and is convenient to maintain.
Preferably, the rear trailing arm comprises bending pieces arranged on two sides and a connecting piece used for connecting the bending pieces, each bending piece is a bending structure with a bending point in the middle, the axle assembly is fixed with the bending pieces, and the driving structure is arranged in a space above the bending point. A larger space is formed above the bending piece, the axial arrangement space of the vehicle can be effectively expanded, and driving structures with different sizes and powers can be replaced according to requirements.
Preferably, the driving structure comprises a driving motor and a differential, the differential is arranged between the two axle assemblies and fixed with the two axle assemblies, the driving motor is detachably connected with the differential, the output end of the driving motor is connected with the input end of the differential, and the output end of the differential is connected with the input end of the axle assembly. The driving motor can be detached and replaced independently, so that the application range of the suspension system is wider.
Preferably, the shock absorber assembly comprises a shock absorption spring, an upper hinge part and a lower hinge part, the upper hinge part is hinged with the frame, the lower hinge part is hinged with the axle assembly, one end of the shock absorption spring is fixed with the upper hinge part, and the other end of the shock absorption spring is fixed with the lower hinge part. The structure can be connected with the frame and the axle assembly through the high-strength damping spring, and the damping effect is realized through the damping spring.
Preferably, the shock absorber assembly further comprises a guide telescopic piece, the guide telescopic piece comprises a telescopic rod and a guide sleeve, the telescopic rod is connected with the guide sleeve in a sliding mode, an upper hinged piece is fixed with the telescopic rod, a lower hinged piece is fixed with the guide sleeve, and the shock absorption spring is sleeved on the outer side of the guide telescopic piece. The direction extensible member can lead to damping spring, avoids damping spring slope when the shock attenuation, leads to the shock attenuation effect to weaken.
Preferably, one end, far away from the telescopic rod, of the guide sleeve is of a closed structure, the guide sleeve and the telescopic rod are enclosed to form an air cavity, and an air vent is arranged on the air cavity and communicates the air cavity with the outside. The gas in the gas cavity can further enhance the damping and buffering effects: the vent holes can enable gas to slowly pass through, when the vibration amplitude is large, the gas in the gas cavity cannot pass through the vent holes, the residual gas in the gas cavity can play a good damping and buffering effect, the situation that the parts of the shock absorber collide hard when the vibration amplitude exceeds the limit of the damping spring is avoided, the larger the vibration amplitude is, the more the residual gas in the gas cavity is, and the better the buffering effect of the gas cavity is; when the vibration amplitude is smaller, the air can pass through the vent hole, the buffering force of the air cavity is small, the damping spring and the air in the air cavity can improve the better damping effect, and the comfort of the vehicle is improved.
Preferably, a flow regulating valve is arranged on the vent hole. The flow regulating valve can regulate the gas flow of the vent hole according to the requirement, so that the damping and buffering effects of the gas cavity are regulated.
The utility model has the advantages that: (1) the layout mode that the driving structure is positioned above the trailing arm can effectively expand the axial arrangement space of the vehicle, so that the trailing arm has more universality; (2) the mechanism can be effectively simplified, the assembly consistency is improved, and the maintenance is convenient; (3) the shock absorption and buffering are carried out through the air cavity in the guide telescopic piece, and the shock absorption and buffering effect is enhanced.
Drawings
Fig. 1 is an exploded view of the present invention;
FIG. 2 is a schematic structural view of a part of the structure of the present invention;
fig. 3 is a schematic structural view of the damper assembly of the present invention.
In the figure: the rear trailing arm comprises a rear trailing arm 1, a bending piece 1.1, a connecting piece 1.2, a shock absorber assembly 2, a shock absorbing spring 2.1, an upper hinge piece 2.2, a lower hinge piece 2.3, a guide telescopic piece 2.4, a telescopic rod 2.4.1, a guide sleeve 2.4.2, an air cavity 2.4.3, an air vent 2.4.4, a flow regulating valve 2.4.5, a driving structure 3, a driving motor 3.1, a differential mechanism 3.2, an axle assembly 4, an axle body 4.1, a supporting frame 4.2 and a fixing bolt 5.
Detailed Description
The invention is further described with reference to the accompanying drawings and specific embodiments.
Example 1:
as shown in fig. 1 and 2, a rear suspension system of a chassis of an unmanned vehicle comprises a rear trailing arm 1, a shock absorber assembly 2, a driving structure 3 and two axle assemblies 4, wherein the rear trailing arm 1 comprises bending pieces 1.1 arranged at two sides and a connecting piece 1.2 used for connecting the bending pieces 1.1, the bending pieces 1.1 are bending structures with bending points in the middle, the two axle assemblies 4 are fixed above the rear trailing arm 1, the two axle assemblies 4 are oppositely fixed on the bending pieces 1.1 on the two sides, each axle assembly 4 comprises an axle body 4.1 and a support frame 4.2, each support frame 4.2 is fixed with the corresponding axle body 4.1, each support frame 4.2 is connected with the corresponding rear trailing arm 1 through a fixing bolt 5, one end of each shock absorber assembly 2 is hinged to the corresponding support frame 4.2, each axle assembly 4 comprises an axle body 4.1 and a support frame 4.2, each support frame 4.2 is fixed with the corresponding axle body 4.1, each support frame 4.2 is connected with the corresponding rear trailing arm 1 through a fixing bolt 5, and one end of each shock absorber assembly 2 is hinged to the corresponding support frame 4.2; drive structure 3 sets up the headspace at the bending point, and drive structure 3 includes driving motor 3.1 and differential mechanism 3.2, and differential mechanism 3.2 sets up between two axletree assemblies 4 and fixed with two axletree assemblies 4, and driving motor 3.1 and differential mechanism 3.2 releasable connection, and driving motor 3.1's output is connected with differential mechanism 3.2's input, and differential mechanism 3.2's output is connected with the input of axletree assembly 4.
Among the above-mentioned technical scheme, the overall arrangement mode that drive structure 3 is located back trailing arm 1 top can effectively expand vehicle axial and arrange the space, makes the trailing arm possess more commonality. The mounting mode that the axle assembly 4 adopts the U-shaped bolt in the traditional suspension system is cancelled, the axle assembly 4 is directly fixed with the rear trailing arm 1 through the fixing bolt 5, and the axle assembly 4 can be integrally mounted or taken down only by screwing or unscrewing the fixing bolt 5 when the axle assembly 4 needs to be mounted or dismounted. The structure can effectively simplify the mechanism, improve the consistency of assembly and is convenient to maintain.
Example 2:
as shown in fig. 3, based on embodiment 1, the shock absorber assembly 2 includes a shock absorbing spring 2.1, an upper hinge 2.2, a lower hinge 2.3, and a guide expansion member 2.4, the guide expansion member 2.4 includes a telescopic rod 2.4.1 and a guide sleeve 2.4.2, the telescopic rod 2.4.1 is slidably connected to the guide sleeve 2.4.2, one end of the guide sleeve 2.4.2, which is far away from the telescopic rod 2.4.1, is a closed structure, the guide sleeve 2.4.2 and the telescopic rod 2.4.1 enclose an air cavity 2.4.3, the air cavity 2.4.3 is provided with a vent hole 2.4.4, the vent hole 2.4.4 communicates the air cavity 2.4.3 with the outside, and the vent hole 2.4.4 is provided with a flow regulating valve 2.4.5;
the upper hinge part 2.2 is hinged with the frame, the upper hinge part 2.2 is fixed with the telescopic rod 2.4.1, the lower hinge part 2.3 is hinged with the axle assembly 4, the lower hinge part 2.3 is fixed with the guide sleeve 2.4.2, the damping spring 2.1 is sleeved outside the guide telescopic part 2.4, one end of the damping spring 2.1 is connected with the upper hinge part 2.2, and the other end of the damping spring 2.1 is fixed with the guide sleeve 2.4.2.
Among the above-mentioned technical scheme, direction extensible member 2.4 can lead to damping spring 2.1, avoids damping spring 2.1 to incline when the shock attenuation, leads to the shock attenuation effect to weaken. The gas in the gas chamber 2.4.3 can further enhance the damping and buffering effects: the vent holes 2.4.4 can enable air to pass through slowly, when the vibration amplitude is large, the air in the air cavity 2.4.3 cannot pass through the vent holes 2.4.4, the residual air in the air cavity 2.4.3 can play a good damping and buffering effect, the situation that the shock absorber part is in hard collision when the vibration amplitude exceeds the limit of the damping spring 2.1 is avoided, and the residual air in the air cavity 2.4.3 is more when the vibration amplitude is large, the buffering effect of the air cavity 2.4.3 is better; when the vibration amplitude is smaller, the air can pass through the vent hole 2.4.4, the buffer force of the air cavity 2.4.3 is small, the damping effect can be better improved by the air in the damping spring 2.1 and the air cavity 2.4.3, and the comfort of the vehicle is improved. The flow regulating valve 2.4.5 can also regulate the gas flow of the vent hole 2.4.4 according to the requirement, thereby regulating the damping and buffering effects of the gas cavity 2.4.3.
The utility model has the advantages that: the layout mode that the driving structure 3 is positioned above the trailing arm can effectively expand the axial arrangement space of the vehicle, so that the trailing arm has more universality; the mechanism can be effectively simplified, the assembly consistency is improved, and the maintenance is convenient; the shock absorption and buffering are carried out through the air cavity 2.4.3 in the guide telescopic piece 2.4, and the shock absorption and buffering effect is enhanced.
Claims (8)
1. The utility model provides a suspension system behind unmanned aerial vehicle chassis, characterized by, includes back trailing arm, bumper shock absorber assembly, drive structure and two axletree assemblies, and two axletree assemblies set up the left and right sides at back trailing arm relatively, and drive structure sets up between two axletree assemblies, and drive structure and two axletree assemblies are fixed in back trailing arm top, and bumper shock absorber assembly one end is articulated with the axletree assembly, and the other end and the frame of bumper shock absorber assembly are articulated.
2. The unmanned vehicle chassis rear suspension system as claimed in claim 1, wherein the axle assembly comprises an axle body and a support frame, the support frame is fixed with the axle body, the support frame is connected with the rear trailing arm through a fixing bolt, and one end of the shock absorber assembly is hinged with the support frame.
3. The rear suspension system of the unmanned vehicle chassis as claimed in claim 1, wherein the rear trailing arm comprises a bending member and a connecting member, the bending member is a bending structure with a bending point in the middle, the bending member is arranged on two sides, the axle assembly is fixed with the bending member, and the driving structure is arranged in a space above the bending point.
4. The unmanned vehicle chassis rear suspension system of claim 1, wherein the drive structure comprises a drive motor and a differential, the differential is disposed between and fixed to the two axle assemblies, the drive motor is detachably connected to the differential, an output end of the drive motor is connected to an input end of the differential, and an output end of the differential is connected to an input end of the axle assembly.
5. The unmanned aerial vehicle chassis rear suspension system of claim 1, 2, 3 or 4, wherein the shock absorber assembly comprises a shock absorbing spring, an upper hinge member and a lower hinge member, the upper hinge member is hinged with the vehicle frame, the lower hinge member is hinged with the axle assembly, one end of the shock absorbing spring is fixed with the upper hinge member, and the other end of the shock absorbing spring is fixed with the lower hinge member.
6. The unmanned aerial vehicle chassis rear suspension system of claim 5, wherein the shock absorber assembly further comprises a guiding telescopic member, the guiding telescopic member comprises a telescopic rod and a guiding sleeve, the telescopic rod is slidably connected with the guiding sleeve, the upper hinge member is fixed with the telescopic rod, the lower hinge member is fixed with the guiding sleeve, and the shock absorbing spring is sleeved outside the guiding telescopic member.
7. The unmanned vehicle chassis rear suspension system as claimed in claim 6, wherein the end of the guide sleeve away from the telescopic rod is a closed structure, the guide sleeve and the telescopic rod enclose an air cavity, and the air cavity is provided with a vent hole which communicates the air cavity with the outside.
8. The unmanned vehicle chassis rear suspension system of claim 7, wherein a flow control valve is disposed on said vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921292382.4U CN210592135U (en) | 2019-08-09 | 2019-08-09 | Rear suspension system of unmanned vehicle chassis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921292382.4U CN210592135U (en) | 2019-08-09 | 2019-08-09 | Rear suspension system of unmanned vehicle chassis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210592135U true CN210592135U (en) | 2020-05-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921292382.4U Active CN210592135U (en) | 2019-08-09 | 2019-08-09 | Rear suspension system of unmanned vehicle chassis |
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|---|---|
| CN (1) | CN210592135U (en) |
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- 2019-08-09 CN CN201921292382.4U patent/CN210592135U/en active Active
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