Self-adaptive speed reducer of electric vehicle

Abstract

The utility model relates to the technical field of engineering machinery, and discloses a self-adaptive speed reducer of an electric vehicle, which comprises a mounting and fixing angle iron, one side of the mounting and fixing angle iron is fixedly connected with a contraction sleeve shell, the inside of the contraction sleeve shell is slidably connected with a telescopic arm, one end of the telescopic arm is rotatably connected with an angle adjusting arm, and the angle adjusting arm is fixedly connected with the telescopic arm. One end of the angle adjusting arm is rotationally connected with a speed reduction friction pad, one side of the bottom of the angle adjusting arm is fixedly connected with a check block, one side of the check block is fixedly connected with an adjusting spring, and one side of the contraction sleeve shell is slidably connected with an adjusting mechanism. According to the self-adaptive speed reduction device of the electric vehicle, by arranging parts such as mounting and fixing angle iron, a shrinkage sleeve shell, an angle adjusting arm, a speed reduction friction pad, an adjusting mechanism and an adjusting spring, the speed reduction device can be conveniently fixed to wheels of different sizes, and the vehicle speed can be adjusted according to the expected value of a driver for the vehicle speed threshold value.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, in particular to an adaptive deceleration device for an electric vehicle. Background Art

[0002] The adaptive deceleration device for electric vehicles is an important technological innovation that aims to improve the driving safety, stability and comfort of electric vehicles. In order to overcome the limitations of traditional deceleration devices, adaptive deceleration technology came into being. This technology can adjust the deceleration strategy in real time according to factors such as the driving status of the electric vehicle, road conditions and external environment, and achieve more accurate and efficient deceleration control.

[0003] After consulting the relevant patent document CN204383435U, it is found that there are still some problems with the existing adaptive deceleration device for electric vehicles. The optimization scheme currently on the market is mainly as follows: when the wheel hub rotates at high speed, the hammer head of the gravity hammer will turn to the outer edge of the wheel hub. In this process, the gravity hammer will push the lever to drive the positioning column to move inward, and the positioning column will release the long base member. Under the action of the torsion spring, the friction plate will be pressed against the friction wheel. As the speed increases, the centripetal force increases, the gravity hammer opens at a larger angle and hits the lever, causing the positioning card to be pressed against the positioning ring groove wall of the positioning column under the pressure. The friction plate comes out of the positioning ring groove and is pressed against the friction wheel, thereby reducing speed. However, when facing wheels of different sizes, the angle and length of the reduction device of this device cannot be well adjusted, and the adjustment of the speed threshold is relatively fixed, and its applicability is not wide. In view of the above problems, by arranging and installing fixed angle irons, shrink sleeves, angle adjustment arms, reduction friction pads, adjustment mechanisms, adjustment springs and other components, the reduction device can be conveniently fixed on wheels of different sizes, and the vehicle speed can be adjusted according to the driver's own expectations of the vehicle speed threshold. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides an adaptive deceleration device for an electric vehicle.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adaptive deceleration device for an electric vehicle, comprising a fixed angle iron, one side of the fixed angle iron is fixedly connected to a shrinkage sleeve, the inside of the shrinkage sleeve is slidably connected to a telescopic arm, one end of the telescopic arm is rotatably connected to an angle adjustment arm, one end of the angle adjustment arm is rotatably connected to a deceleration friction pad, one side of the bottom of the angle adjustment arm is fixedly connected to a block, one side of the block is fixedly connected to an adjustment spring, one side of the shrinkage sleeve is slidably connected to an adjustment mechanism, the inside of the fixed angle iron is fixedly connected to a speed reduction plate, one side of the speed reduction plate is rotatably connected to a wheel axle, the inside of the wheel axle is rotatably connected to a bearing, the surface of the wheel axle is fixedly connected to a support rod, the top of the support rod is fixedly connected to a wheel outer frame, and the surface of the shrinkage sleeve is rotatably connected to a positioning bolt.

[0006] As a further improvement of the above scheme, the mounting angle iron includes a fixing plate, an arc-shaped placement groove is opened inside the mounting angle iron, the fixing plate is fixedly connected to one side of the mounting angle iron, and the mounting angle iron is installed on the outer surface of the speed reduction plate.

[0007] As a further improvement of the above-mentioned scheme, an adjustment groove is provided at the bottom of the shrinking sleeve, and a support plate is fixedly connected to the bottom of the shrinking sleeve. The support plate is symmetrically distributed with the shrinking sleeve as the axis, and the adjustment groove is located in the area between the shrinking sleeve and the support plate. A mounting hole is provided on the surface of the shrinking sleeve, and the adjustment groove is rotatably connected to the positioning bolt.

[0008] As a further improvement of the above scheme, the deceleration friction pad includes a rotating shaft, which is rotatably connected to the angle adjustment arm, one end of the rotating shaft is fixedly connected to a connecting rod, one end of the connecting rod is fixedly connected to a bonding plate, and one side of the bonding plate is fixedly connected to the friction pad.

[0009] As a further improvement of the above solution, the friction pad is in contact with the inner wall of the wheel frame, the rotating shaft passes through the interior of the angle adjustment arm, and is in contact with the angle adjustment arm via a nut.

[0010] As a further improvement of the above scheme, the adjustment mechanism includes a slider, and clamps are fixedly connected on both sides of the slider. The clamps are symmetrically distributed with the support plate as the axis. The internal rotation of the clamp is connected with a fastening bolt, and the clamp and the support plate are slidably connected.

[0011] As a further improvement of the above solution, one end of the adjusting spring is fixedly connected to the surface of the slider, and the other end is fixedly connected to the stopper, and the mounting angle irons are symmetrically distributed with the speed reduction plate as the axis.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. This kind of electric vehicle adaptive deceleration device has a different rotation speed between the deceleration disc and the wheel axle, and is slower than the angular velocity of the wheel axle. Therefore, when the wheel frame rotates, the centripetal force generated causes the angle adjustment arm to rotate, driving the deceleration friction pad to fit tightly against the inner wall of the wheel frame. Since the fixed angle iron is fixed on the deceleration disc, the deceleration friction pad generates a reverse friction force when it contacts the inner wall of the wheel frame, thereby decelerating the wheel frame. The structure is simple, and the installation and deceleration effects are better.

[0014] 2. When the adaptive deceleration device of this electric vehicle is replaced with a larger wheel frame, the positioning bolts are loosened at this time, and the position of the shrinking sleeve is adjusted and then the positioning bolts are retightened to effectively adapt to wheel frames of different sizes. Then, according to the speed threshold required by the driver, the position of the adjustment mechanism is adjusted. First, the fastening bolts are loosened, and then the slider is pushed to slide on the support plate. During the adjustment process, the adjustment spring drives the angle adjustment arm to rotate. If a high threshold speed is required, the slider is slid inward at this time to reduce the angle between the angle adjustment arm and the telescopic arm, so that the angle adjustment arm will be expanded under the action of centrifugal force only when the rotation of the wheel frame is higher. Conversely, when a low speed threshold is required, the slider is slid outward, adjusted to the appropriate position, and then the fastening bolts are tightened so that the clamping plate is effectively clamped on the support plate, which makes the speed adjustment more flexible and meets the travel needs of the driver. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the main view of the utility model from the left side perspective;

[0016] Figure 2 This is a schematic diagram of the utility model from the right side perspective;

[0017] Figure 3 This is a schematic diagram of the connection between the fixed angle iron and the shrink sleeve of the utility model;

[0018] Figure 4 This is a schematic diagram of the connection between the shrink sleeve and the adjustment mechanism of the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the deceleration friction pad of the utility model.

[0020] Description of main symbols:

[0021] 1. Install the fixing angle iron; 101. Fixing plate; 102. Arc placement groove; 2. Shrink sleeve; 201. Adjustment groove; 202. Support plate; 203. Mounting hole; 3. Telescopic arm; 4. Angle adjustment arm; 401. Block; 5. Speed ​​reduction friction pad; 501. Rotating shaft; 502. Connecting rod; 503. Fitting plate; 504. Friction pad; 6. Adjustment spring; 7. Adjustment mechanism; 701. Slider; 702. Clamp; 703. Fastening bolt; 8. Wheel axle; 9. Bearing; 10. Wheel frame; 11. Positioning bolt; 12. Support rod, 13. Speed ​​reduction plate. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0023] Example:

[0024] Please combine Figure 1-5 , an adaptive deceleration device for an electric vehicle in this embodiment comprises a fixed angle iron 1, one side of the fixed angle iron 1 is fixedly connected with a shrinking sleeve 2, a telescopic arm 3 is slidably connected inside the shrinking sleeve 2, one end of the telescopic arm 3 is rotatably connected with an angle adjustment arm 4, one end of the angle adjustment arm 4 is rotatably connected with a deceleration friction pad 5, a bottom side of the angle adjustment arm 4 is fixedly connected with a block 401, one side of the block 401 is fixedly connected with an adjustment spring 6, one side of the shrinking sleeve 2 is slidably connected with an adjustment mechanism 7, a speed reduction plate 13 is fixedly connected inside the fixed angle iron 1, one side of the speed reduction plate 13 is rotatably connected with a wheel axle 8, a bearing 9 is rotatably connected inside the wheel axle 8, a support rod 12 is fixedly connected to the surface of the wheel axle 8, a wheel outer frame 10 is fixedly connected to the top of the support rod 12, and a positioning bolt 11 is rotatably connected to the surface of the shrinking sleeve 2.

[0025] The mounting fixing angle iron 1 comprises a fixing plate 101 , an arc-shaped placement groove 102 is provided inside the mounting fixing angle iron 1 , the fixing plate 101 is fixedly connected to one side of the mounting fixing angle iron 1 , and the mounting fixing angle iron 1 is mounted on the outer surface of the speed reduction plate 13 .

[0026] An adjustment groove 201 is provided at the bottom of the shrinking sleeve 2, and a support plate 202 is fixedly connected to the bottom of the shrinking sleeve 2. The support plate 202 is symmetrically distributed with the shrinking sleeve 2 as the axis. The adjustment groove 201 is located in the area between the shrinking sleeve 2 and the support plate 202. A mounting hole 203 is provided on the surface of the shrinking sleeve 2, and the adjustment groove 201 is rotatably connected to the positioning bolt 11.

[0027] The deceleration friction pad 5 includes a rotating shaft 501, which is rotatably connected to the angle adjustment arm 4. One end of the rotating shaft 501 is fixedly connected to a connecting rod 502, one end of the connecting rod 502 is fixedly connected to a bonding plate 503, and one side of the bonding plate 503 is fixedly connected to a friction pad 504.

[0028] The friction pad 504 is in contact with the inner wall of the wheel frame 10 , and the rotating shaft 501 passes through the interior of the angle adjustment arm 4 and is in contact with the angle adjustment arm 4 via a nut.

[0029] The adjustment mechanism 7 includes a slider 701 , and clamping plates 702 are fixedly connected to both sides of the slider 701 . The clamping plates 702 are symmetrically distributed with the support plate 202 as the axis. The clamping plates 702 are internally rotatably connected with fastening bolts 703 , and the clamping plates 702 and the support plate 202 are slidably connected.

[0030] One end of the regulating spring 6 is fixedly connected to the surface of the slider 701 , and the other end is fixedly connected to the stopper 401 . The fixing angle irons 1 are installed and symmetrically distributed with the speed reduction disc 13 as the axis.

[0031] The working principle of an adaptive deceleration device for an electric vehicle in the embodiment of the present application is as follows: since the rotation speed of the deceleration plate 13 is different from that of the wheel axle 8 and is slower than the angular velocity of the wheel axle 8, when the wheel outer frame 10 rotates, the centripetal force generated by it causes the angle adjustment arm 4 to rotate, driving the deceleration friction pad 5 to fit tightly against the inner wall of the wheel outer frame 10; since the fixed angle iron 1 is fixed on the deceleration plate 13, the deceleration friction pad 5 generates a reverse friction force when it contacts the inner wall of the wheel outer frame 10, thereby decelerating the wheel outer frame 10; the structure is simple, and the installation and deceleration effects are better; when replacing to a larger-sized wheel outer frame 10, the positioning bolt 11 is loosened at this time, and the position of the shrinking sleeve 2 is adjusted and then the positioning bolt 11 is tightened again to effectively adapt to different The wheel frame 10 of a certain size is then adjusted according to the speed threshold required by the driver. First, the fastening bolt 703 is loosened, and then the slider 701 is pushed to slide on the support plate 202. During the adjustment process, the adjustment spring 6 drives the angle adjustment arm 4 to rotate. If a high threshold speed is required, the slider 701 is slid inward at this time to reduce the angle between the angle adjustment arm 4 and the telescopic arm 3, so that the angle adjustment arm 4 will be expanded under the action of centrifugal force only when the rotation of the wheel frame 10 is higher. On the contrary, when a low speed threshold is required, the slider 701 is slid outward. After adjusting to the appropriate position, the fastening bolt 703 is tightened to effectively clamp the clamping plate 702 on the support plate 202, so that the speed adjustment is more flexible and meets the travel needs of the driver.

[0032] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. An adaptive deceleration device for an electric vehicle, characterized in that: The invention comprises a mounting fixed angle iron (1), one side of the mounting fixed angle iron (1) is fixedly connected to a shrinking sleeve (2), the interior of the shrinking sleeve (2) is slidably connected to a telescopic arm (3), one end of the telescopic arm (3) is rotatably connected to an angle adjustment arm (4), one end of the angle adjustment arm (4) is rotatably connected to a deceleration friction pad (5), one side of the bottom of the angle adjustment arm (4) is fixedly connected to a stopper (401), one side of the stopper (401) is fixedly connected to an adjustment spring (6), and ... An adjusting mechanism (7) is slidably connected to one side of the casing (2); a speed reduction plate (13) is fixedly connected to the interior of the mounting and fixing angle iron (1); a wheel axle (8) is rotatably connected to one side of the speed reduction plate (13); a bearing (9) is rotatably connected to the interior of the wheel axle (8); a support rod (12) is fixedly connected to the surface of the wheel axle (8); a wheel outer frame (10) is fixedly connected to the top of the support rod (12); and a positioning bolt (11) is rotatably connected to the surface of the shrink casing (2).

2. An adaptive deceleration device for an electric vehicle as claimed in claim 1, characterized in that: The mounting and fixing angle iron (1) comprises a fixing plate (101), an arc-shaped placement groove (102) is provided inside the mounting and fixing angle iron (1), the fixing plate (101) is fixedly connected to one side of the mounting and fixing angle iron (1), and the mounting and fixing angle iron (1) is installed on the outer surface of the speed reduction plate (13).

3. The electric vehicle adaptive deceleration device according to claim 1, characterized in that: The bottom of the shrinkable sleeve (2) is provided with an adjustment groove (201), the bottom of the shrinkable sleeve (2) is fixedly connected with a support plate (202), the support plate (202) is symmetrically distributed with the shrinkable sleeve (2) as the axis, the adjustment groove (201) is located in the area between the shrinkable sleeve (2) and the support plate (202), the surface of the shrinkable sleeve (2) is provided with a mounting hole (203), and the adjustment groove (201) is rotatably connected to the positioning bolt (11).

4. The electric vehicle adaptive deceleration device according to claim 1, characterized in that: The deceleration friction pad (5) comprises a rotating shaft (501), the rotating shaft (501) is rotatably connected to the angle adjustment arm (4), one end of the rotating shaft (501) is fixedly connected to a connecting rod (502), one end of the connecting rod (502) is fixedly connected to a bonding plate (503), and one side of the bonding plate (503) is fixedly connected to a friction pad (504).

5. An adaptive deceleration device for an electric vehicle as claimed in claim 4, characterized in that: The friction pad (504) is in contact with the inner wall of the wheel outer frame (10), and the rotating shaft (501) passes through the interior of the angle adjustment arm (4) and is in contact with the angle adjustment arm (4) via a nut.

6. The electric vehicle adaptive deceleration device according to claim 3, characterized in that: The adjustment mechanism (7) comprises a slider (701), and clamping plates (702) are fixedly connected to both sides of the slider (701), and the clamping plates (702) are symmetrically distributed with the support plate (202) as the axis. The clamping plates (702) are rotatably connected to the inside with fastening bolts (703), and the clamping plates (702) are slidably connected to the support plate (202).

7. An adaptive deceleration device for an electric vehicle as claimed in claim 6, characterized in that: One end of the regulating spring (6) is fixedly connected to the surface of the slider (701), and the other end is fixedly connected to the stopper (401). The mounting and fixing angle irons (1) are symmetrically distributed with the speed reduction disc (13) as the axis.

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