Vehicle-mounted damping device for reducing instantaneous impact

Abstract

The utility model relates to the technical field of vehicle-mounted vibration reduction, and provides a vehicle-mounted vibration reduction device for reducing instantaneous impact, which comprises a chassis, a fixing plate and a vibration reduction mechanism, and a plurality of fixing rods are fixedly arranged at the top of the chassis; the fixing plate sleeves the outer sides of the plurality of fixing rods; the damping mechanism comprises a plurality of damping springs and a plurality of hydraulic dampers; the two ends of the hydraulic shock absorber are fixedly arranged on the chassis and the end of the fixing plate respectively, and the included angle between the projections of the hydraulic shock absorber and the fixing plate on the vertical plane parallel to the moving direction of the vehicle body is an obtuse angle. The damping spring and the hydraulic shock absorber are arranged at the bottom and the end of the fixing plate respectively, impact borne by the fixing plate in the vertical direction and the horizontal direction can be reduced, impact force borne by the hydraulic shock absorber can be reduced by obliquely arranging the hydraulic shock absorber and the fixing plate, and the service life of the hydraulic shock absorber is prolonged. Therefore, the performance requirement of the damping device on the hydraulic damper is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle-mounted vibration reduction, and in particular relates to a vehicle-mounted vibration reduction device for reducing instantaneous impact. Background Art

[0002] At present, it is very common to transport equipment by vehicles. However, during the actual transportation process, the equipment often shakes due to the influence of vehicle operation or road conditions. Therefore, in order to protect the equipment during transportation, on-board vibration reduction devices are usually installed on the transport vehicles.

[0003] The utility model with patent announcement number CN210661191U discloses "a shock-absorbing base for an on-board charger of an electric vehicle". A locking groove is set in the bottom plate, and a shock-absorbing plate is movably connected in the locking groove. The shock-absorbing plate is suspended by multiple elastic plates at the bottom and springs on both sides. The springs on both sides of the shock-absorbing plate perform lateral shock absorption. The elastic plate is set in an arc shape, and there are multiple elastic plates at the bottom of the shock-absorbing plate. The two ends of the elastic plate are movably connected to rollers. The multiple elastic plates at the bottom perform elastic shock absorption. The rollers at both ends of the elastic plate are easy to slide, which is convenient for shock absorption and the shock-absorbing plate can also perform lateral shock absorption.

[0004] In the above technical solution, in order to cope with the lateral impact force generated when the vehicle starts, stops, accelerates or decelerates, a spring is set at the end of the shock-absorbing plate. However, since the setting direction of the spring is parallel to the direction of the vehicle, the lateral impact force generated by the vehicle needs to be completely borne by the spring. Therefore, the performance requirements for the spring are relatively high. Utility Model Content

[0005] The present utility model aims to solve the above-mentioned problems and provides a vehicle-mounted vibration reduction device for reducing instantaneous impact. By slanting the hydraulic shock absorber and the fixing plate, the damage to the hydraulic shock absorber caused by the horizontal impact force of the vehicle can be reduced, thereby reducing the performance requirements of the vehicle body on the hydraulic shock absorber.

[0006] The technical solution adopted by the utility model is as follows: the vehicle-mounted vibration reduction device for reducing instantaneous impact includes a chassis, a fixing plate and a vibration reduction mechanism, wherein the chassis is installed on the vehicle body, and a plurality of fixing rods are fixedly provided on the top of the chassis; the fixing plate is sleeved on the outside of the plurality of fixing rods and can slide in the horizontal direction and the vertical downward direction;

[0007] The vibration damping mechanism includes a plurality of vibration damping springs and a plurality of hydraulic shock absorbers, wherein the vibration damping springs are arranged between the chassis and the fixed plate and elastically abut against both; the two ends of the hydraulic shock absorber are respectively fixed on the chassis and the end of the fixed plate, and the angle between the projections of the hydraulic shock absorber and the fixed plate on the vertical plane parallel to the moving direction of the vehicle body is an obtuse angle.

[0008] Furthermore, a plurality of hydraulic shock absorbers are provided on both ends of the fixing plate along the moving direction of the vehicle body.

[0009] Furthermore, the included angle between the projections of the hydraulic shock absorber and the fixing plate on a vertical plane parallel to the moving direction of the vehicle body is 135 degrees, and the included angle between the projections of the hydraulic shock absorber and the fixing plate on a horizontal plane is 180 degrees.

[0010] Furthermore, the vibration damping mechanism also includes a connecting spring, and each of the two ends of the hydraulic shock absorber is fixedly provided with a connecting spring, and the two ends of the hydraulic shock absorber are connected to the fixing plate and the chassis through the connecting spring.

[0011] Furthermore, a plurality of sliding holes are provided on the fixing plate; the fixing rod includes a screw and a nut, wherein one end of the screw is fixedly provided on the chassis and is slidably provided in one of the sliding holes; the nut is connected to the screw by threaded fitting, and the nut is abutted against the top side of the fixing plate.

[0012] Furthermore, the sliding hole is an oblong hole, and the long axis direction of the sliding hole is parallel to the moving direction of the vehicle body.

[0013] Furthermore, blocking plates are fixedly provided at both ends of the upper side of the chassis along the moving direction of the vehicle body; two enclosures are detachably fixed between the two blocking plates, and the fixed plate is located between the two enclosures.

[0014] Furthermore, a sliding groove is provided on one side of the blocking plate close to the enclosure; sliding blocks are fixedly provided at both ends of the enclosure, and the sliding blocks are slidably connected to the sliding groove.

[0015] Furthermore, the axis of the chute is parallel to the vertical direction.

[0016] Furthermore, buffer plates are fixedly provided on both ends of the fixed plate along the moving direction of the vehicle body, a gap is provided between the buffer plate and the blocking plate, and the vibration reduction mechanism is located at the bottom of the buffer plate.

[0017] The vehicle-mounted vibration reduction device for alleviating instantaneous impact of the utility model has the following beneficial effects compared with the prior art:

[0018] (1) By arranging a damping spring and a hydraulic shock absorber at the bottom and end of the fixed plate respectively, the impact on the fixed plate in the vertical and horizontal directions can be reduced. By arranging the hydraulic shock absorber at an angle to the fixed plate, the impact force on the hydraulic shock absorber can be reduced, thereby reducing the performance requirements of the hydraulic shock absorber for the present vibration damping device;

[0019] (2) By setting up blocking plates and enclosures, when the enclosures are fixed on the blocking plates, the equipment can be wrapped and protected. When the enclosures are removed, the equipment can be easily disassembled, thereby facilitating the transportation of the equipment;

[0020] (3) By providing a buffer plate, when the fixed plate is subjected to a large impact force, the buffer plate and the blocking plate can be squeezed, thereby improving the buffering performance of the shock absorbing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The utility model is a cross-sectional view of a vehicle-mounted vibration reduction device for alleviating instantaneous impact.

[0022] Figure 2 The utility model is a three-dimensional diagram of a vibration reduction mechanism in a vehicle-mounted vibration reduction device for reducing instantaneous impact.

[0023] Figure 3 This is a three-dimensional diagram of a vehicle-mounted vibration reduction device for alleviating instantaneous impact according to the present utility model.

[0024] Figure 4 This is an exploded view of a sliding block in a vehicle-mounted vibration reduction device for alleviating instantaneous impact according to the present invention.

[0025] Figure 5 This is an exploded view of the fixed rod in a vehicle-mounted vibration reduction device for alleviating instantaneous impact according to the present invention.

[0026] Explanation of the serial numbers in the figure: 1. Chassis; 11. Fixed rod; 111. Screw; 112. Nut; 12. Blocking plate; 13. Enclosure; 131. Sliding block; 101. Slide groove; 2. Fixed plate; 201. Sliding hole; 21. Buffer plate; 3. Vibration reduction mechanism; 31. Vibration reduction spring; 32. Hydraulic shock absorber; 33. Connecting spring. DETAILED DESCRIPTION

[0027] The following will be combined with the specific embodiments of the present invention to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] like Figures 1 to 5As shown, the present invention provides a vehicle-mounted vibration reduction device for mitigating transient impacts, comprising a chassis 1, a fixing plate 2, and a vibration reduction mechanism 3. The chassis 1 is mounted on the vehicle body and supports other components. Multiple fixing rods 11 are fixed to the top of the chassis 1. The fixing plate 2 is used to connect to the equipment being transported by the vehicle. The fixing plate 2 fits over the fixing rods 11 and can slide horizontally and vertically downward.

[0029] The damping mechanism 3 is used to provide vibration reduction protection for the fixed plate 2. The damping mechanism 3 includes a plurality of damping springs 31 and a plurality of hydraulic shock absorbers 32. The damping springs 31 are arranged between the chassis 1 and the fixed plate 2, and elastically support the two. The support of the damping springs 31 can reduce the vibration of the fixed plate 2 in the vertical direction to cope with the vibration caused by the bumps on the road. The two ends of the hydraulic shock absorber 32 are respectively fixed on the chassis 1 and the end of the fixed plate 2. The angle between the projection of the hydraulic shock absorber 32 and the fixed plate 2 on the vertical plane parallel to the moving direction of the vehicle body is an obtuse angle. Figure 1 As shown, by arranging the hydraulic shock absorber 32 at the end of the fixed plate 2, the hydraulic shock absorber 32 can be used to buffer the horizontal instantaneous impact force generated when the vehicle body starts, stops, accelerates or decelerates. Since the hydraulic shock absorber 32 is arranged at an angle, a part of the horizontal impact force can be converted into gravitational potential energy, which is offset by the shock-absorbing spring 31, and the remaining part of the impact force is absorbed by the hydraulic shock absorber 32, thereby reducing the performance requirements of the device on the hydraulic shock absorber 32, which is conducive to the lightweight design of the vibration reduction device.

[0030] To enhance the comprehensiveness of the vibration damping device's protection against horizontal impact forces, multiple hydraulic shock absorbers 32 can be installed at both ends of the fixed plate 2 along the vehicle's direction of movement. The angles of the hydraulic shock absorbers 32 can also be adjusted so that the included angle between the projections of the hydraulic shock absorbers 32 and the fixed plate 2 on a vertical plane parallel to the vehicle's direction of movement is 135 degrees, and the included angle between the projections of the hydraulic shock absorbers 32 and the fixed plate 2 on a horizontal plane is 180 degrees, thereby converting half of the horizontal impact force into potential energy. Connecting springs 33 can also be installed in the vibration damping mechanism 3, with each hydraulic shock absorber 32 having a connecting spring 33 fixed at each end. The connecting springs 33 connect the ends of the hydraulic shock absorbers 32 to the fixed plate 2 and chassis 1. It is understood that the elastic force exerted by the deformation of the connecting springs 33 should be greater than the elastic force exerted by the deformation of the hydraulic shock absorbers 32, thereby further reducing the performance requirements of the hydraulic shock absorbers 32.

[0031] In order to allow the fixed plate 2 to slide in the horizontal direction and the vertical downward direction, as shown in FIG. Figure 5As shown, multiple sliding holes 201 can be provided on the fixing plate 2, so that the fixing rod 11 includes a screw 111 and a nut 112. One end of the screw 111 is fixed to the chassis 1 and slidably disposed within one of the sliding holes 201. The nut 112 is threadably connected to the screw 111 and abuts against the top side of the fixing plate 2. Since the horizontal impact force on the fixing plate 2 is typically caused by the vehicle's starting, stopping, accelerating, or decelerating, the fixing plate 2 can be allowed to slide only in two directions parallel to the vehicle's movement direction; that is, the sliding holes 201 are configured as oblong holes, with the long axis of the sliding holes 201 parallel to the vehicle's movement direction.

[0032] In addition, blocking plates 12 can be fixed at both ends of the upper side of the chassis 1 along the moving direction of the vehicle body, and two enclosures 13 can be detachably fixed between the two blocking plates 12, so that the fixed plate 2 is located between the two enclosures 13. Figure 3 As shown, the blocking plate 12 and the enclosure 13 are combined to form a rectangular frame structure, and the fixed plate 2 is located within this frame, thereby preventing the equipment from detaching from the vibration damping device. However, the provision of the enclosure 13 makes it inconvenient to remove the equipment from the vibration damping device. To solve this problem, a chute 101 can be provided on the side of the blocking plate 12 close to the enclosure 13, and sliding blocks 131 are fixedly provided at both ends of the enclosure 13, so that the sliding blocks 131 are slidably connected to the chute 101; that is, when the equipment is transported, the enclosure 13 is installed between the blocking plates 12 by sliding the sliding blocks 131 and the chute 101, and when the equipment needs to be disassembled, the enclosure 13 can be slid out from between the blocking plates 12. Specifically, it is preferred that the axis of the chute 101 is parallel to the vertical direction, that is, the enclosure 13 is allowed to slide out of the blocking plate 12 in a vertical upward direction to prevent the enclosure 13 from detaching when the equipment collides with it.

[0033] To enhance the damping effect of this vibration damping device, buffer plates 21 can be fixed to both ends of the fixed plate 2 along the vehicle's travel direction, with a gap between the buffer plates 21 and the blocking plate 12. When horizontal impact forces are small, the damping mechanism 3 cushions them; when horizontal impact forces are large, the collision between the buffer plates 21 and the blocking plate 12 provides additional cushioning. Furthermore, the damping mechanism 3 is preferably located at the bottom of the buffer plates 21 to prevent damage to the hydraulic shock absorber 32 and connecting spring 33 from external impurities.

[0034] The working principle of the vehicle-mounted vibration reduction device for reducing instantaneous impact of the present invention is as follows: when the vehicle is bumpy, the vibration reduction spring 31 can be used to buffer the fixed plate 2 in the vertical direction; and when the vehicle starts, stops, accelerates or decelerates to generate horizontal impact force, the hydraulic shock absorbers 32, connecting springs 33 and buffer plates 21 on both sides can be used to buffer it; and, since the hydraulic shock absorber 32 is arranged at an angle, it can convert part of the horizontal impact force into gravitational potential energy, thereby further reducing the performance requirements of the hydraulic shock absorber 32 of the present vibration reduction device, which contributes to the lightweight design of the present vibration reduction device.

Claims

1. A vehicle-mounted vibration reduction device for reducing instantaneous impact, comprising a chassis (1), a fixing plate (2) and a vibration reduction mechanism (3), characterized in that: The chassis (1) is mounted on a vehicle body, and a plurality of fixing rods (11) are fixedly arranged on the top of the chassis (1); the fixing plate (2) is sleeved on the outside of the plurality of fixing rods (11) and can slide in the horizontal direction and the vertical downward direction; the vibration damping mechanism (3) includes a plurality of vibration damping springs (31) and a plurality of hydraulic shock absorbers (32), wherein the vibration damping springs (31) are arranged between the chassis (1) and the fixing plate (2) and elastically abut against the two; the two ends of the hydraulic shock absorber (32) are respectively fixed on the chassis (1) and the end of the fixing plate (2), and the angle between the projections of the hydraulic shock absorber (32) and the fixing plate (2) on the vertical plane parallel to the moving direction of the vehicle body is an obtuse angle.

2. The vehicle-mounted vibration reduction device for alleviating instantaneous impact according to claim 1, characterized in that: A plurality of hydraulic shock absorbers (32) are provided on both ends of the fixing plate (2) along the moving direction of the vehicle body.

3. The vehicle-mounted vibration reduction device for alleviating instantaneous impact according to claim 2, characterized in that: The included angle between the projections of the hydraulic shock absorber (32) and the fixed plate (2) on a vertical plane parallel to the moving direction of the vehicle body is 135 degrees, and the included angle between the projections of the hydraulic shock absorber (32) and the fixed plate (2) on a horizontal plane is 180 degrees.

4. The vehicle-mounted vibration reduction device for alleviating instantaneous impact according to claim 3, characterized in that: The vibration damping mechanism (3) further includes a connecting spring (33), and each of the two ends of the hydraulic shock absorber (32) is fixedly provided with a connecting spring (33), and the two ends of the hydraulic shock absorber (32) are connected to the fixing plate (2) and the chassis (1) through the connecting spring (33).

5. The vehicle-mounted vibration reduction device for alleviating instantaneous impact according to claim 1, characterized in that: The fixing plate (2) is provided with a plurality of sliding holes (201); the fixing rod (11) comprises a screw rod (111) and a nut (112), wherein one end of the screw rod (111) is fixedly arranged on the chassis (1) and is slidably arranged in one of the sliding holes (201); the nut (112) is connected to the screw rod (111) by threaded engagement, and the nut (112) is abutted against the top side of the fixing plate (2).

6. The vehicle-mounted vibration reduction device for alleviating instantaneous impact according to claim 5, characterized in that: The sliding hole (201) is an oblong hole, and the long axis direction of the sliding hole (201) is parallel to the moving direction of the vehicle body.

7. The vehicle-mounted vibration reduction device for alleviating instantaneous impact according to claim 1, characterized in that: Blocking plates (12) are fixedly provided at both ends of the upper side of the chassis (1) along the moving direction of the vehicle body; two enclosures (13) are detachably fixed between the two blocking plates (12), and the fixed plate (2) is located between the two enclosures (13).

8. The vehicle-mounted vibration reduction device for alleviating instantaneous impact according to claim 7, characterized in that: A sliding groove (101) is provided on one side of the blocking plate (12) close to the enclosure (13); sliding blocks (131) are fixedly provided at both ends of the enclosure (13), and the sliding blocks (131) are slidably connected to the sliding groove (101).

9. The vehicle-mounted vibration reduction device for alleviating instantaneous impact according to claim 8, characterized in that: The axis of the slide groove (101) is parallel to the vertical direction.

10. The vehicle-mounted vibration reduction device for alleviating instantaneous impact according to claim 9, characterized in that: Buffer plates (21) are fixedly provided on both ends of the fixed plate (2) along the moving direction of the vehicle body, a gap is provided between the buffer plate (21) and the blocking plate (12), and the vibration reduction mechanism (3) is located at the bottom of the buffer plate (21).

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