Swing arm type balanced suspension with motor auxiliary drive

Abstract

The utility model relates to an automobile suspension system, and provides a swing arm type balanced suspension with a motor auxiliary drive, which comprises a floating axle, a frame, a drive axle and a suspension, the suspension comprises a swing arm, a rocker arm and a hydraulic cylinder; the hydraulic cylinder serves as a power source for suspension adjustment and is connected between the frame and the rocker arm. The layout that the hydraulic cylinder is hinged to the rocker arm and the swing arm is adopted, when the load of an automobile is large, the rocker arm is made to rotate through pushing and pulling of the hydraulic cylinder, the swing arm is driven to swing, the drive axle fixed to one end of the swing arm is lowered, the floating wheel makes contact with the road surface, the bearing capacity of the automobile is improved, meanwhile, the hub motor in the floating wheel can drive the floating wheel to rotate, and the service life of the automobile is prolonged. And extra power is provided for the automobile. The number of wheel shafts borne by the automobile and driving power can be flexibly adjusted under different loads, and the economical efficiency and stability of the automobile in the driving process are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile suspensions, and in particular relates to a balanced suspension of a truck. Background Art

[0002] With the rapid development of highway construction and the increasing prosperity of road transportation in my country, the competition in the transportation market has continued to intensify, and the advantages of large-tonnage transportation have become increasingly obvious. Multi-axle vehicles have high load capacity and high returns, which is conducive to protecting the interests of transportation companies and the safety of road transportation. Multi-axle vehicles with floating bridges embody technological innovation. When the truck is empty or lightly loaded, the floating bridge is raised to reduce driving resistance; when the vehicle is heavily loaded, the floating bridge is lowered to increase the carrying capacity.

[0003] The common floating bridges currently do not have driving force, and they are only lowered when the load is large to increase the vehicle's carrying capacity. However, for vehicles equipped with floating bridges, when the floating bridge needs to be lowered, it means that the vehicle load has increased, and the number of axles needs to be increased to increase the carrying capacity. At this time, the driving resistance of the vehicle also increases accordingly, and the demand for driving force will also be greater. Therefore, increasing the vehicle's driving force while increasing the vehicle's carrying capacity is of great significance to improving the vehicle's carrying capacity and driving performance. Summary of the invention

[0004] The utility model aims to provide a vehicle suspension with a simple and reliable structure, which can be manually or automatically controlled when necessary and can increase the load-bearing wheel axle and driving force of the vehicle.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a swing arm type balancing suspension with motor auxiliary drive, characterized in that it includes a floating bridge, a frame, a driving bridge, and a suspension; the suspension is symmetrically arranged on the frame, and the floating bridge and the driving bridge are arranged on the suspension and can move with the movement of the suspension; the floating bridge includes a floating wheel axle and a motor hub; there are two floating wheel axles and two motor hubs, and they are symmetrically installed at the rear end of the swing arm; the frame includes a tail crossbeam, a longitudinal beam, and a hydraulic cylinder crossbeam; the tail crossbeam and the hydraulic cylinder crossbeam are installed between the longitudinal beams; the driving bridge includes a driving axle hub and a driving axle axle; there are two driving axle hubs, which are installed at both ends of the driving axle axle; the suspension includes a swing arm shaft bracket, a swing arm, a lifting ear connecting plate, a lifting ear connecting pin, a leaf spring, a driving axle fixing mechanism, a steel plate pin, a lifting ear bracket, a hydraulic cylinder tail pin, a hydraulic cylinder, a hydraulic cylinder head pin, a connecting pin, and a rocker arm; the driving axle fixing mechanism is composed of a U-bolt, a nut, and a steel plate.

[0006] Preferably, two pairs of lifting ears are provided on the top of the hydraulic cylinder cross beam, and the hydraulic cylinder is hinged to the lifting ears on the top of the hydraulic cylinder cross beam through a hydraulic cylinder tail pin, and the hydraulic cylinder can swing within a certain range with the hydraulic cylinder tail pin as the center.

[0007] Preferably, the drive axle fixing mechanism fixes the drive axle at the middle position of the leaf spring, and the lower surface of the drive axle wheel shaft contacts the upper surface of the leaf spring; the drive axle fixing mechanism locks and clamps the drive axle wheel shaft and the leaf spring between the upper and lower leaf springs through the fastening action of U-shaped bolts and nuts.

[0008] Preferably, the swing arm shaft bracket and the hanger bracket are fixedly arranged on the two longitudinal beams of the vehicle frame in pairs; the front end of the leaf spring is hinged to the hanger bracket through a leaf spring pin, and a pair of hanger connecting plates and a hanger connecting pin connect the rear end of the leaf spring to the front end of the swing arm. The middle part of the swing arm is hinged to the swing arm shaft bracket, and the floating axle is connected to the rear end of the swing arm through a floating wheel axle; the tail of the hydraulic cylinder is connected to the hydraulic cylinder cross beam through a hydraulic cylinder tail pin, and the head of the hydraulic cylinder is hinged to the upper end of the rocker arm through a hydraulic cylinder head pin. The lower end of the rocker arm is hinged to the swing arm, and the movement of the hydraulic cylinder push rod can be transmitted to the swing arm through the rocker arm.

[0009] Preferably, a pin hole is provided at the middle position of the rocker arm. One end of the connecting pin passes through the pin hole, and the other end contacts the side surface of the longitudinal beam, so that while the rocker arm can rotate around the connecting pin, a constraint in the axial direction of the connecting pin is given to the rocker arm.

[0010] The beneficial effects of the present utility model are as follows:

[0011] 1. The functions of the traditional swing arm type balance suspension are retained. When the vehicle is unloaded or lightly loaded, the floating axle can be lifted to make the floating wheel leave the ground, reducing tire wear and lowering fuel consumption. When the vehicle is heavily loaded, the floating axle can be lowered to make the floating wheel touch the ground, increasing the number of vehicle load-bearing axles and enhancing the driving stability of the vehicle;

[0012] 2. A hub motor is installed in the floating wheel hub, which can generate driving force for the floating wheel when necessary, making it a driving wheel and enabling the vehicle to obtain greater power;

[0013] 3. The lifting and lowering of the floating wheel can be automatically controlled by the hydraulic cylinder on the suspension. When the vehicle is heavily loaded, the suspension automatically lowers the floating axle to make the floating axle bear the load, enhancing the reliability of the swing arm type balance suspension; Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0015] Figure 2 It is a schematic diagram of the floating axle structure of the present utility model.

[0016] Figure 3 It is a schematic diagram of the vehicle frame structure of the present utility model.

[0017] Figure 4 It is a schematic diagram of the drive axle structure of the present utility model.

[0018] Figure 5This is a schematic diagram of the suspension structure of the present utility model.

[0019] Figure 6 This is a schematic diagram of the assembly relationship of the suspension structure of the present utility model.

[0020] Explanation of reference numerals: 1 floating bridge, 2 vehicle frame, 3 drive axle, 4 suspension, 1.1 floating wheel axle, 1.2 motor hub, 2.1 rear cross beam, 2.2 longitudinal beam, 2.3 hydraulic cylinder cross beam, 3.1 drive axle hub, 3.2 drive axle shaft, 4.1 swing arm shaft bracket, 4.2 swing arm, 4.3 hanger connecting plate, 4.4 hanger connecting pin, 4.5 leaf spring, 4.6 drive axle fixing mechanism, 4.7 leaf spring pin, 4.8 hanger bracket, 4.9 hydraulic cylinder tail pin, 4.10 hydraulic cylinder, 4.11 hydraulic cylinder head pin, 4.12 connecting pin, 4.13 rocker arm. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments; based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] See Figure 1 , a swing arm type balance suspension with motor assisted drive includes a floating bridge 1, a vehicle frame 2, a drive axle 3, and a suspension 4. The suspension 4 is symmetrically arranged on the vehicle frame 2, and the floating bridge 1 and the drive axle 3 are arranged on the suspension 4 and can move along with the movement of the suspension 4. The floating bridge is connected to the swing arm 4.2 of the suspension 4 through the floating wheel axle 1.1. The drive axle 3 is fixed on the leaf spring 4.5 of the suspension 4 through the drive axle fixing mechanism 4.6. The front end of the leaf spring 4.5 is hinged to the hanger bracket 4.8, the swing arm 4.2 is hinged to the swing arm shaft bracket 4.1, and the hanger bracket 4.8 and the swing arm shaft bracket 4.1 are fixed under the longitudinal beam 2.2, so that the suspension 4 is connected to the vehicle frame 2.

[0023] See Figure 2 , the floating bridge 1 includes a floating wheel axle 1.1 and a motor hub 1.2. One end of the floating wheel axle 1.1 is fixed to the rear end of the swing arm 4.2, and the other end is connected to the motor hub 1.2. A motor is built in the motor hub, and electric energy can be used to drive the floating wheel to rotate.

[0024] See Figure 3 , the vehicle frame 2 includes a rear cross beam 2.1, a longitudinal beam 2.2, and a hydraulic cylinder cross beam 2.3. There are two hangers on the hydraulic cylinder cross beam 2.3 for connecting to the hydraulic cylinder 4.10 through the hydraulic cylinder tail pin 4.9.

[0025] SeeFigure 4 The drive axle 3 is composed of two drive axle hubs 3.1 fixed at both ends of the drive axle shaft 3.2, providing driving force for the vehicle.

[0026] See Figure 5 As shown, the front end of the suspension 4 is connected to the longitudinal beam 2.2 through the hanger bracket 4.8, and the swing arm 4.2 at the rear end of the suspension 4 is connected to the longitudinal beam 2.2 through the swing arm shaft bracket 4.1. The front end of the leaf spring 4.5 is hinged to the hanger bracket 4.8 through the leaf spring pin 4.7. A pair of hanger connecting plates 4.3 and hanger connecting pins 4.4 connect the rear end of the leaf spring 4.5 to the front end of the swing arm 4.2. The middle of the swing arm 4.2 is hinged to the swing arm shaft bracket 4.1. The floating axle 1 is connected to the rear end of the swing arm 4.2 through the floating wheel axle 1.1. The tail of the hydraulic cylinder 4.10 is connected to the hydraulic cylinder cross beam 2.3 through the hydraulic cylinder tail pin 4.9. The head of the hydraulic cylinder 4.10 is hinged to the upper end of the rocker arm 4.13 through the hydraulic cylinder head pin 4.11. The lower end of the rocker arm 4.13 is hinged to the swing arm 4.2. The movement of the push rod of the hydraulic cylinder 4.10 can be transmitted to the swing arm 4.2 via the rocker arm 4.13.

[0027] The working principle of the present utility model is described as follows:

[0028] When the vehicle is unloaded or lightly loaded, the push rod of the hydraulic cylinder 4.10 extends, the rocker arm 4.13 rotates around the connecting pin 4.12, the front end of the swing arm 4.2 sinks and the rear end rises, lifting the floating axle 1 fixed to the rear end of the swing arm 4.2 off the ground, reducing tire wear and lowering fuel consumption;

[0029] When the vehicle is heavily loaded, the push rod of the hydraulic cylinder 4.10 retracts, the rocker arm 4.13 rotates in the reverse direction around the connecting pin 4.12, the front end of the swing arm 4.2 rises and the rear end descends, lowering the floating axle 1 fixed to the rear end of the swing arm 4.2 to contact the ground, increasing the number of vehicle load-bearing axles and enhancing the driving stability of the vehicle;

[0030] In the above embodiments, all technical solutions falling within the concept of the present utility model belong to the protection scope of the present utility model; it should be noted that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present utility model should also be regarded as within the protection scope of the present utility model.

Claims

1. A swing arm type balancing suspension with motor auxiliary drive, characterized in that: The invention comprises a floating bridge (1), a vehicle frame (2), a driving bridge (3), and a suspension (4); the suspension (4) is symmetrically arranged on the vehicle frame (2); the floating bridge (1) and the driving bridge (3) are arranged on the suspension (4) and can move along with the movement of the suspension (4); the floating bridge (1) comprises a floating wheel axle (1.1) and a motor hub (1.2); there are two floating wheel axles (1.1) and two motor hubs (1.2), which are symmetrically mounted at the rear end of a swing arm (4.2); the vehicle frame (2) comprises a tail crossbeam (2.1), a longitudinal beam (2.2), and a hydraulic cylinder crossbeam (2.3); the tail crossbeam (2.1) and the hydraulic cylinder crossbeam (2.3) are mounted between the longitudinal beams (2.2); The drive axle (3) comprises a drive axle hub (3.1) and a drive axle axle (3.2); there are two drive axle hubs (3.1) mounted at both ends of the drive axle axle (3.2); the suspension (4) comprises a swing arm shaft bracket (4.1), a swing arm (4.2), a lifting eye connecting plate (4.3), a lifting eye connecting pin (4.4), a leaf spring (4.5), a drive axle fixing mechanism (4.6), a steel plate pin (4.7), a lifting eye bracket (4.8), a hydraulic cylinder tail pin (4.9), a hydraulic cylinder (4.10), a hydraulic cylinder head pin (4.11), a connecting pin (4.12), and a rocker arm (4.13); the drive axle fixing mechanism (4.6) comprises a U-shaped bolt, a nut, and a steel plate.

2. The swing arm type balancing suspension with motor auxiliary drive according to claim 1, characterized in that: Two pairs of lifting ears are provided on the top of the hydraulic cylinder cross beam (2.3); the hydraulic cylinder (4.10) is hinged to the lifting ears on the top of the hydraulic cylinder cross beam (2.3) via a hydraulic cylinder tail pin (4.9); and the hydraulic cylinder can swing within a certain range with the hydraulic cylinder tail pin (4.9) as the center.

3. The swing arm type balancing suspension with motor auxiliary drive according to claim 1, characterized in that: The drive axle fixing mechanism (4.6) fixes the drive axle (3) at the middle position of the leaf spring (4.5), and the lower surface of the drive axle axle (3.2) contacts the upper surface of the leaf spring (4.5); the drive axle fixing mechanism (4.6) locks the drive axle axle (3.2) and the leaf spring (4.5) clamped between the upper and lower steel plates through the tightening action of the U-shaped bolt and the nut.

4. The swing arm type balancing suspension with motor auxiliary drive according to claim 1, characterized in that: The swing arm shaft bracket (4.1) and the lifting eye bracket (4.8) are fixed in pairs on two longitudinal beams (2.2) of the vehicle frame (2); the front end of the leaf spring (4.5) is hinged to the lifting eye bracket (4.8) via a steel plate pin (4.7); a pair of lifting eye connecting plates (4.3) and a lifting eye connecting pin (4.4) connect the rear end of the leaf spring (4.5) to the front end of the swing arm (4.2); the middle part of the swing arm (4.2) is connected to the swing arm (4.2). The arm shaft bracket (4.1) is hinged, and the floating bridge (1) is connected to the rear end of the swing arm (4.2) through the floating wheel shaft (1.1); the tail of the hydraulic cylinder (4.10) is connected to the hydraulic cylinder cross beam (2.3) through the hydraulic cylinder tail pin (4.9), the head of the hydraulic cylinder (4.10) is hinged to the upper end of the rocker arm (4.13) through the hydraulic cylinder head pin (4.11), and the lower end of the rocker arm (4.13) is hinged to the swing arm (4.2).

5. The swing arm type balancing suspension with motor auxiliary drive according to claim 1, characterized in that: A pin hole is provided in the middle of the rocker arm (4.13), one end of the connecting pin (4.12) penetrates the pin hole, and the other end contacts the side surface of the longitudinal beam (2.2), so that the rocker arm (4.13) can rotate around the connecting pin (4.12) while constraining the rocker arm (4.13) in the axial direction along the connecting pin (4.12).

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