Oil injection equipment for electric vehicle shock absorber

Abstract

The oil injection equipment effectively achieves the purpose of fixing different types of shock absorbers and comprises an oil storage barrel for the electric vehicle shock absorber and a fixing frame, a rotatable fixing disc is arranged on the upper side of the fixing frame, and a plurality of fixing mechanisms for fixing the shock absorbers are arranged on the upper side of the fixing disc. A fixing mechanism is arranged on the upper side of the fixing frame, a detection mechanism is arranged in the fixing mechanism, adjusting mechanisms in one-to-one correspondence with the detection mechanism are arranged on the upper side of the interior of the fixing frame, an oil injection plate is arranged on the upper side of the fixing frame, and a plurality of connecting blocks used for injecting oil into the shock absorber are arranged on the lower side of the oil injection plate. According to the shock absorber oil injection device, the aim of injecting oil into shock absorbers of different models is effectively achieved, operation of workers is facilitated, the function of detecting the models of the shock absorbers is added, the stability of the shock absorbers during fixing is improved, and the oil injection amount can be automatically adjusted.

Description

Technical Field

[0001] The invention belongs to the technical field of shock absorber production and relates to oil injection equipment for electric vehicle shock absorbers. Background Art

[0002] Shock absorbers are used to dampen the rebound oscillations caused by springs absorbing shock and to reduce road impact. They are widely used in automobiles and electric vehicles to accelerate the attenuation of frame and body vibrations, improving ride smoothness. While shock-absorbing springs can filter out road vibrations when driving over uneven surfaces, the springs themselves still experience reciprocating motion, and shock absorbers are designed to dampen this spring bounce.

[0003] Since there are many types of electric vehicles on the market, there are also many types of shock absorbers that need to be adapted. Different types of shock absorbers require different amounts of shock absorber oil to be injected. It is very inconvenient to produce multiple types of shock absorbers at the same time or to convert production models. Therefore, an electric vehicle shock absorber oiling device is needed to solve the above problems. The device can fix different types of shock absorbers, automatically identify the shock absorber model and inject oil. Summary of the Invention

[0004] In view of the above problems, the present invention proposes an oil injection device for an electric vehicle shock absorber, which effectively solves the problems in the prior art.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0006] A lubrication device for an electric vehicle shock absorber comprises an oil storage barrel for the electric vehicle shock absorber and a fixing frame for storing the oil storage barrel, a rotatable fixing plate being provided on the upper side of the fixing frame, a plurality of fixing mechanisms for fixing the shock absorber being provided on the upper side of the fixing plate, a detection mechanism for detecting the shock absorber model being provided inside each fixing mechanism, an adjustment mechanism corresponding one-to-one to the detection mechanism being provided on the upper side of the interior of the fixing frame, each detection mechanism and the corresponding adjustment mechanism cooperating with each other to form a structure for automatically adjusting the oil filling amount, an oil filling plate movable up and down being provided on the upper side of the fixing frame, a plurality of connecting blocks for oiling the shock absorber being provided on the lower side of the oil filling plate, the connecting blocks corresponding one-to-one to the fixing mechanisms.

[0007] Preferably, the fixing mechanism includes a circular block and a plurality of clamping rods that can move radially along the circular block. Each clamping rod is provided with a clamping plate on the side close to the shock absorber. The plurality of clamping rods and the clamping plates cooperate with each other to form a structure in which the shock absorber is fixed in the center.

[0008] Preferably, a plurality of guide holes are provided inside the circular block, a rotatable threaded sleeve is provided inside each guide hole, a plurality of threaded blocks are fixedly connected to the upper and lower sides of each clamping rod, each clamping rod is connected to the inner thread of the threaded sleeve through the corresponding threaded block, a guide groove is provided on the left and right sides of the clamping rod, a guide block is fixedly connected to the side of the guide hole close to the shock absorber, and each guide block is slidably connected to the inside of the guide groove.

[0009] Preferably, each of the clamping rods is provided with a square groove inside, a square block is slidably connected to the inside of the square groove, an adjusting rod is fixedly connected to the side of the square block close to the shock absorber, and each adjusting rod is fixedly connected to the corresponding clamping plate on the side close to the shock absorber, an adjusting block is sleeved on the outer thread of the middle part of the adjusting rod, the side of the clamping rod close to the shock absorber is rotatably connected to the adjusting block, and a rubber block is fixedly connected to the side of the adjusting block away from the clamping rod.

[0010] Preferably, a rotatable power gear is provided inside the circular block, and two coaxially rotating first sprockets are provided on the rear side of the power gear, and a second sprocket is provided on the left and right sides of the power gear, and a first chain is cooperated with each first sprocket and the corresponding second sprocket, and the rear side of each second sprocket is fixedly connected to the first bevel gear, and the rear side of each first bevel gear is meshed with the second bevel gear, and the left side of each second bevel gear is fixedly connected to the third sprocket, and the rear side of each third sprocket is provided with a fourth sprocket rotatably connected to the circular block, and a second chain is cooperated with each third sprocket and the corresponding fourth sprocket, and each of the first sprocket and the fourth sprocket is connected to the corresponding threaded sleeve through a flat key.

[0011] Preferably, a transmission gear is engaged with the front side of the power gear, a clamping motor is fixedly connected to the inside of the circular block, and one side of the transmission gear is fixedly connected to the output shaft of the clamping motor.

[0012] Preferably, the detection mechanism includes a detection rod, a detection spring and a first sensor, a detection groove is provided inside the circular block, the detection rod is slidably connected to the detection groove, the detection spring is arranged inside the detection groove, the two ends of the detection spring are respectively abutted against the detection rod and the first sensor, and an adaptive chamfer is provided on the side of the detection rod away from the detection spring.

[0013] Preferably, a sliding cover that can slide up and down is provided on the rear side of the circular block, and two sliding grooves are opened on the rear side of the circular block. A sliding block is slidably connected to the inside of each sliding groove, and the rear side of each sliding block is fixedly connected to the sliding cover. A tension spring is provided inside each sliding groove, and the upper and lower ends of each tension spring are fixedly connected to the sliding groove and the sliding block respectively.

[0014] Preferably, the adjustment mechanism includes an oil inlet pipe, an oil outlet pipe and a detection tank, the upper and lower sides of the detection tank are respectively connected to the oil outlet pipe and the oil inlet pipe, two load-bearing blocks are fixedly connected to the outer side of the detection tank, and a load-bearing ring is mounted on the outer side of the detection tank. The bottom of each load-bearing block abuts against the corresponding load-bearing ring, the upper side of the load-bearing ring is fixedly connected to the fixing frame, and the lower side of each load-bearing block is provided with a second sensor fixedly connected to the load-bearing ring.

[0015] Preferably, a fixed cover plate is rotatably connected to the rear side of the fixing frame, an oil storage cover is detachably connected to the upper side of the oil storage barrel, and each of the oil inlet pipes is fixedly connected to the oil storage cover.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention has a fixing mechanism that can fix shock absorbers of different models, thereby enabling the device to adapt to different models of shock absorbers for oiling operations, thereby increasing the adaptability of the device.

[0018] 2. The present invention has a detection mechanism that can detect the compression amount of the detection spring through the first sensor, and then can determine the model of the shock absorber and control the oil filling amount of the shock absorber.

[0019] 3. The present invention has multiple clamping rods, which can clamp the middle part of the shock absorber at multiple angles and directions, so that when fixing shock absorbers of different thicknesses, they can all be fixed in the middle part of the fixing mechanism, and can be adapted for use with shock absorbers of different models. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 Schematic diagram of the structure of the circular block in the present invention.

[0022] Figure 3 For the present invention Figure 2 A partial enlarged schematic diagram of area A in the middle.

[0023] Figure 4 Schematic diagram of the position of the sliding block in the present invention.

[0024] Figure 5 It is a schematic diagram of the matching state of the first bevel gear and the second bevel gear in the present invention.

[0025] Figure 6 Schematic diagram of the structure of the clamping rod in the present invention.

[0026] Figure 7It is a structural schematic diagram of the oil storage barrel in the present invention.

[0027] Figure 8 For the present invention Figure 7 A partial enlarged schematic diagram of area B in the middle.

[0028] In the figure: 1. Oil storage barrel; 2. Fixing frame; 3. Fixing plate; 5. Detection mechanism; 6. Adjustment mechanism; 7. Oil filling plate; 8. Connecting block; 9. Round block; 10. Clamping rod; 11. Clamping plate; 12. Guide hole; 13. Threaded sleeve; 14. Threaded block; 15. Guide groove; 16. Guide block; 17. Square groove; 18. Square block; 19. Adjustment rod; 20. Adjustment block; 21. Rubber block; 22. Power gear; 23. First sprocket; 24. Second sprocket; 25. First chain; 26. First bevel gear; 27. Second bevel gear; 28. Third sprocket; 29. ​​Fourth sprocket; 30. Transmission gear; 31. Clamping motor; 32. Detection rod; 33. Detection spring; 34. First sensor; 36. Adaptive chamfer; 37. Sliding cover; 38. Sliding groove; 39. Sliding block; 40. Tension spring; 41. Oil inlet pipe; 42. Oil outlet pipe; 43. Detection tank; 44. Load-bearing block; 45. Load-bearing ring; 46. Second sensor; 47. Fixed cover; 48. Oil storage cover; 49. Second chain. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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.

[0030] The following is combined with Figures 1-8 The specific embodiments of the present invention are described in further detail.

[0031] Depend on Figures 1-8As shown, the present invention includes an oil storage barrel 1 for tram shock absorbers and a fixing frame 2 for storing the oil storage barrel 1. In order to achieve the purpose of fixing and oiling shock absorbers of different models, a rotatable fixing plate 3 is provided on the upper side of the fixing frame 2. A plurality of fixing mechanisms for fixing the shock absorbers are provided on the upper side of the fixing plate 3. A detection mechanism 5 for detecting the model of the shock absorber is provided inside each fixing mechanism. An adjustment mechanism 6 corresponding to the detection mechanism 5 is provided on the upper side of the fixing frame 2. Each detection mechanism 5 cooperates with the corresponding adjustment mechanism 6 to form a structure for automatically adjusting the oil filling amount. An oil filling plate 7 that can move up and down is provided on the upper side of the fixing frame 2. A plurality of connecting blocks 8 for oiling the shock absorbers are provided on the lower side of the oil filling plate 7. The connecting blocks 8 correspond to the fixing mechanisms one by one. The detection mechanism 5 is electrically connected to the adjustment mechanism 6. A rotating motor is provided on the lower side of the fixing plate 3 for driving the fixing plate 3 to rotate. An electric telescopic rod is provided on the lower side of the oil filling plate 7, which can drive the oil filling plate 7 to move up and down through the electric telescopic rod, and then the shock absorber is oiled through the connecting block 8.

[0032] It should be noted that a grease nipple is provided on the lower side of the connecting block 8. The position of the grease nipple corresponds to the position of the grease filling port of the shock absorber. The grease nipple is a prior art and will not be described in detail here.

[0033] During use, the shock absorber to be tested can be fixed by a fixing mechanism. When fixed, the fixing mechanism can adapt to different shock absorber models, and detect the type of corresponding shock absorber through the detection mechanism 5, and then feedback to the adjustment mechanism 6. The adjustment mechanism 6 can control the total volume of oil injected into the shock absorber through the oil filling plate 7 and the connecting block 8, and thus can automatically adapt to different shock absorbers for the purpose of oiling.

[0034] Furthermore, in order to achieve the purpose of fixing different types of shock absorbers, the fixing mechanism includes a circular block 9 and a plurality of clamping rods 10 that can move radially along the circular block 9. Each clamping rod 10 is provided with a clamping plate 11 on the side close to the shock absorber. The plurality of clamping rods 10 and the clamping plates 11 cooperate with each other to form a structure in which the shock absorber is fixed in the center. A placement groove is opened in the middle of the circular block 9, and the shock absorber can be placed inside the placement groove.

[0035] Furthermore, in order to achieve the purpose of being able to center and fix different types of shock absorbers, a plurality of guide holes 12 are opened inside the circular block 9, and a rotatable threaded sleeve 13 is provided inside each guide hole 12. A plurality of threaded blocks 14 are fixedly connected to the upper and lower sides of each clamping rod 10. Each clamping rod 10 is threadedly connected to the inner side of the threaded sleeve 13 through the corresponding threaded block 14. A guide groove 15 is opened on each side of the clamping rod 10. Two guide blocks 16 are fixedly connected to the side of the guide hole 12 close to the shock absorber, and each guide block 16 is slidably connected to the inside of the guide groove 15.

[0036] During use, the shock absorber can be placed inside the placement groove, and then each threaded sleeve 13 inside the circular block 9 will rotate together. Due to the action of the guide groove 15 and the guide block 16, the threaded sleeve 13 will rotate relative to the clamping rod 10, and then under the action of the thread inside the threaded sleeve 13, each clamping rod 10 drives each clamping plate 11 to move to clamp the shock absorber. Since the rotation angle of each threaded sleeve 13 is the same, the length of each clamping rod 10 extending out of the circular block 9 is also the same. In this embodiment, there are three clamping rods 10, which can clamp the shock absorber from three directions, so that the shock absorber can be fixed at the center position of the circular block 9, corresponding to the connecting block 8.

[0037] Furthermore, in order to adapt to the use of shock absorbers of different thicknesses, a square groove 17 is provided inside each clamping rod 10, and a square block 18 is slidably connected inside the square groove 17. An adjusting rod 19 is fixedly connected to the side of the square block 18 close to the shock absorber, and each adjusting rod 19 is fixedly connected to the corresponding clamping plate 11 on the side close to the shock absorber. A scale groove is provided on each adjusting rod 19, and the scale groove can be used to conveniently view the length of each adjusting rod 19 extending out of the square groove 17, and the length can be manually adjusted to be consistent. An adjusting block 20 is sleeved on the outer thread of the middle part of the adjusting rod 19, and the side of the clamping rod 10 close to the shock absorber is rotatably connected to the adjusting block 20, and the side of the adjusting block 20 away from the clamping rod 10 is fixedly connected to a rubber block 21; each clamping block is provided with a curved surface adapted to the outer diameter of the shock absorber on the side close to the shock absorber;

[0038] During use, when the outer diameter of the shock absorber changes too much, the adjusting block 20 can be manually rotated. Since the adjusting block 20 is rotatably connected to the adjusting rod 19, the adjusting block 20 will drive the adjusting rod 19 to extend and retract relative to the clamping rod 10, thereby adjusting the distance between the clamping plate 11 and the clamping rod 10 to adapt to shock absorbers with different outer diameters for use.

[0039] Further, in order to facilitate the fixing of the shock absorber, a rotatable power gear 22 is provided inside the circular block 9, and two coaxially rotating first sprockets 23 are provided on the rear side of the power gear 22, and a second sprocket 24 is provided on the left and right sides of the power gear 22, and a first chain 25 is commonly cooperated between each first sprocket 23 and the corresponding second sprocket 24, and the rear side of each second sprocket 24 is fixedly connected to a first bevel gear 26, and the rear side of each first bevel gear 26 is meshed with a second bevel gear 27, and the left side of each second bevel gear 27 is fixedly connected to a third sprocket 28, and the rear side of each third sprocket 28 is provided with a fourth sprocket 29 rotatably connected to the circular block 9, and each third sprocket 28 is commonly cooperated with the corresponding fourth sprocket 29 by a second chain 49, and each first sprocket 23 and the fourth sprocket 29 are connected to the corresponding threaded sleeve 13 through a flat key;

[0040] Furthermore, in order to facilitate the operation of the staff, a transmission gear 30 is engaged with the front side of the power gear 22, and a clamping motor 31 is fixedly connected to the inside of the circular block 9. One side of the transmission gear 30 is fixedly connected to the output shaft of the clamping motor 31. The clamping motor 31 is a servo motor and is provided with a safety coupling, which will not be described in detail here.

[0041] During use, after detecting that the shock absorber is placed inside the circular block 9, the clamping motor 31 will start, and the clamping motor 31 will drive the two first sprockets 23 to rotate through the transmission gear 30 and the power gear 22, and then drive the two second sprockets 24 to rotate through the two first chains 25. Since the second sprocket 24 and the corresponding third sprocket 28 are powered by the first bevel gear 26 and the second bevel gear 27, the second sprocket 24 will drive the fourth sprocket 29 to rotate through the third sprocket 28 and the second chain 49. At this point, the first sprocket 23, the second sprocket 24, the third sprocket 28 and the fourth sprocket 29 can rotate together. Since each first sprocket 23 and the fourth sprocket 29 rotate together with the corresponding threaded sleeve 13, the three threaded sleeves 13 can be rotated together, so that the clamping rod 10 and the clamping plate 11 can clamp the shock absorber together.

[0042] Furthermore, in order to detect the model of the shock absorber, the detection mechanism 5 includes a detection rod 32, a detection spring 33, and a first sensor 34. A detection slot is provided inside the circular block 9. The detection rod 32 is slidably connected to the detection slot. The detection spring 33 is disposed inside the detection slot. The two ends of the detection spring 33 abut against the detection rod 32 and the first sensor 34 respectively. The detection rod 32 has an adaptor chamfer 36 on the side away from the detection spring 33.

[0043] It should be noted that, since the thickness of the oil cylinders of shock absorbers of different models is different, the amount of oil filled therein is also different. The lower side of the shock absorber oil cylinder is fixedly connected to a fixing ring for fixing the shock absorber on the electric vehicle, and the inner diameter of the fixing ring on the lower side of different sensors is also different. Therefore, when the shock absorber is installed inside the circular block 9, due to the different inner diameters of the fixing ring on the lower side of the shock absorber, the detection rod 32 will move different distances under the action of the adaptive chamfer 36, thereby causing the detection spring 33 to deform to a certain length. The first sensor 34 is a pressure sensor, which can detect the pressure at one end of the detection spring 33. Since the compression of the spring is proportional to its elastic force, the compression of the spring can be detected by the pressure of the spring. Therefore, the pressure value detected by the first sensor 34 forms a one-to-one correspondence with the model of the shock absorber, and the shock absorber model can be detected.

[0044] Furthermore, in order to increase the stability of the shock absorber when it is fixed, a sliding cover 37 that can slide up and down is provided on the rear side of the circular block 9. Two sliding grooves 38 are opened on the rear side of the circular block 9. A sliding block 39 is slidably connected to the interior of each sliding groove 38. The rear side of each sliding block 39 is fixedly connected to the sliding cover 37. A tension spring 40 is provided inside each sliding groove 38. The upper and lower ends of each tension spring 40 are fixedly connected to the sliding groove 38 and the sliding block 39 respectively.

[0045] During use, when fixing the shock absorber through the circular block 9, you can first press the sliding cover 37 downward. A touch switch is provided between the sliding cover 37 and the circular block 9. When the sliding cover 37 is slid closed, the touch switch will be closed and energized. At this time, a signal will be sent to the clamping motor 31, causing the clamping motor 31 to rotate and drive each clamping rod 10 to extend out of the circular block 9 to clamp the shock absorber. When the sliding cover 37 is opened, the touch switch will send a signal to reverse the clamping motor 31, driving the corresponding clamping rod 10 to retract into the inside of the circular block 9, thereby canceling the fixation of the shock absorber.

[0046] Furthermore, in order to be able to automatically adjust the oil injection amount, the adjustment mechanism 6 includes an oil inlet pipe 41, an oil outlet pipe 42 and a detection tank 43. The upper and lower sides of the detection tank 43 are respectively connected to the oil outlet pipe 42 and the oil inlet pipe 41. Two bearing blocks 44 are fixedly connected to the outside of the detection tank 43. A bearing ring 45 is sleeved on the outside of the detection tank 43. The bottom of each bearing block 44 abuts against the corresponding bearing ring 45. The upper side of the bearing ring 45 is fixedly connected to the fixing frame 2. The lower side of each bearing block 44 is provided with a second sensor 46 fixedly connected to the bearing ring 45. The second sensor 46 is a pressure sensor that can detect the total weight of the detection tank 43.

[0047] Furthermore, in order to facilitate the addition of shock absorber oil, a fixed cover plate 47 is rotatably connected to the rear side of the fixing frame 2, and an oil storage cover 48 is detachably connected to the upper side of the oil storage barrel 1. Each oil inlet pipe 41 is fixedly connected to the oil storage cover 48. After opening the fixed cover plate 47 and the fixed cover plate 47, shock absorber oil can be added to the interior of the oil storage barrel 1. A transparent scale window is opened on the side wall of the oil storage barrel 1 to observe the remaining oil amount therein.

[0048] It should be noted that a first oil pump is provided at one end of each oil inlet pipe 41 inside the oil storage barrel 1, and a second oil pump is also provided inside each detection tank 43. The oil outlet end of the second oil pump is connected to the oil outlet pipe 42, and each first oil pump is electrically connected to the corresponding second oil pump. When the shock absorber is filled with oil, after the model of the shock absorber is detected by the detection mechanism 5, the shock absorber oil can be pumped into the detection tank 43 through the first oil pump. At this time, under the action of the second sensor 46, the weight of the shock absorber oil pumped into the detection tank 43 can be detected. When the oil volume corresponding to the shock absorber model is reached, the first oil pump will stop pumping the shock absorber oil, and the second oil pump will fill the inside of the shock absorber with oil through the oil outlet pipe 42, the oil filling plate 7 and the connecting block 8.

[0049] When the present invention is used, the shock absorber to be tested can be first fixed by the fixing mechanism. When fixing, the shock absorber can be placed inside the placement groove. Then, each threaded sleeve 13 inside the circular block 9 will rotate together. Due to the action of the guide groove 15 and the guide block 16, the threaded sleeve 13 will rotate relative to the clamping rod 10. Then, under the action of the thread inside the threaded sleeve 13, each clamping rod 10 drives each clamping plate 11 to move, thereby clamping the shock absorber. Since the rotation angle of each threaded sleeve 13 is the same, Therefore, the length of each clamping rod 10 extending out of the circular block 9 is also the same. In this embodiment, there are three clamping rods 10, which can clamp the shock absorber from three directions, so that the shock absorber can be fixed at the center position of the circular block 9, corresponding to the connecting block 8, and the type of the corresponding shock absorber is detected by the detection mechanism 5, and fed back to the adjustment mechanism 6. The adjustment mechanism 6 can control the total volume of oil injected into the shock absorber through the oil filling plate 7 and the connecting block 8, so as to automatically adapt to different shock absorbers for the purpose of oiling.

[0050] The present invention has a novel structure, ingenious conception, and simple and convenient operation. Through this design, the purpose of fixing and oiling shock absorbers of different models is effectively achieved. It can be adapted to the use of shock absorbers of different thicknesses, facilitates the fixing of shock absorbers, facilitates the operation of staff, adds the function of detecting the model of shock absorbers, increases the stability of the shock absorber when it is fixed, and can automatically adjust the amount of oil injection.

[0051] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An oil filling device for an electric vehicle shock absorber, comprising an oil storage barrel for the electric vehicle shock absorber and a fixing frame for storing the oil storage barrel, characterized in that: A rotatable fixing plate is provided on the upper side of the fixing frame, and a plurality of fixing mechanisms for fixing the shock absorber are provided on the upper side of the fixing plate, and a detection mechanism for detecting the model of the shock absorber is provided inside each fixing mechanism, and an adjustment mechanism corresponding to the detection mechanism is provided on the upper side of the interior of the fixing frame, and each detection mechanism cooperates with the corresponding adjustment mechanism to form a structure for automatically adjusting the oil injection amount, and an oil injection plate that can move up and down is provided on the upper side of the fixing frame, and a plurality of connecting blocks for oiling the shock absorber are provided on the lower side of the oil injection plate, and the connecting blocks correspond to the fixing mechanisms one by one.

2. The oil injection device for electric vehicle shock absorber according to claim 1, characterized in that: The fixing mechanism includes a circular block and a plurality of clamping rods that can move radially along the circular block. A clamping plate is provided on the side of each clamping rod close to the shock absorber. The plurality of clamping rods and the clamping plates cooperate with each other to form a structure for fixing the shock absorber in the center.

3. The oil injection device for electric vehicle shock absorber according to claim 2, characterized in that: A plurality of guide holes are provided inside the circular block, a rotatable threaded sleeve is provided inside each guide hole, a plurality of threaded blocks are fixedly connected to the upper and lower sides of each clamping rod, each clamping rod is threadedly connected to the inner side of the threaded sleeve through a corresponding threaded block, a guide groove is provided on the left and right sides of the clamping rod, a guide block is fixedly connected to the side of the guide hole close to the shock absorber, and each guide block is slidably connected to the inside of the guide groove.

4. The oil injection device for electric vehicle shock absorber according to claim 3, characterized in that: A square groove is provided inside each of the clamping rods, a square block is slidably connected inside the square groove, an adjusting rod is fixedly connected to the side of the square block close to the shock absorber, each adjusting rod is fixedly connected to the corresponding clamping plate on the side close to the shock absorber, an adjusting block is threadedly sleeved on the outer side of the middle part of the adjusting rod, the side of the clamping rod close to the shock absorber is rotatably connected to the adjusting block, and a rubber block is fixedly connected to the side of the adjusting block away from the clamping rod.

5. The oil injection device for electric vehicle shock absorber according to claim 3, characterized in that: A rotatable power gear is provided inside the circular block, and two first sprockets rotating coaxially are provided on the rear side of the power gear, and a second sprocket is provided on the left and right sides of the power gear, and a first chain is cooperated with each first sprocket and the corresponding second sprocket, and a first bevel gear is fixedly connected to the rear side of each second sprocket, and a second bevel gear is meshed on the rear side of each first bevel gear, and a third sprocket is fixedly connected to the left side of each second bevel gear, and a fourth sprocket is rotatably connected to the circular block on the rear side of each third sprocket, and a second chain is cooperated with each third sprocket and the corresponding fourth sprocket, and each of the first sprocket and the fourth sprocket is connected to the corresponding threaded sleeve through a flat key.

6. The oil injection device for electric vehicle shock absorber according to claim 5, characterized in that: A transmission gear is meshed with the front side of the power gear, a clamping motor is fixedly connected to the inside of the circular block, and one side of the transmission gear is fixedly connected to the output shaft of the clamping motor.

7. The oil injection device for electric vehicle shock absorber according to claim 2, characterized in that: The detection mechanism includes a detection rod, a detection spring and a first sensor. A detection groove is provided inside the circular block. The detection rod is slidably connected to the detection groove. The detection spring is arranged inside the detection groove. The two ends of the detection spring are respectively abutted against the detection rod and the first sensor. An adapting chamfer is provided on the side of the detection rod away from the detection spring.

8. The oil injection device for electric vehicle shock absorber according to claim 2, characterized in that: A sliding cover which can slide up and down is provided on the rear side of the circular block, and two sliding grooves are provided on the rear side of the circular block. A sliding block is slidably connected inside each sliding groove, and the rear side of each sliding block is fixedly connected to the sliding cover. A tension spring is provided inside each sliding groove, and the upper and lower ends of each tension spring are respectively fixedly connected to the sliding groove and the sliding block.

9. The oil injection device for electric vehicle shock absorber according to claim 1, characterized in that: The adjusting mechanism includes an oil inlet pipe, an oil outlet pipe and a detection tank. The upper and lower sides of the detection tank are respectively connected to the oil outlet pipe and the oil inlet pipe. Two load-bearing blocks are fixedly connected to the outer side of the detection tank. A load-bearing ring is mounted on the outer side of the detection tank. The bottom of each load-bearing block abuts against the corresponding load-bearing ring. The upper side of the load-bearing ring is fixedly connected to the fixing frame. The lower side of each load-bearing block is provided with a second sensor fixedly connected to the load-bearing ring.

10. The oil injection device for electric vehicle shock absorber according to claim 9, characterized in that: The rear side of the fixing frame is rotatably connected with a fixing cover plate, the upper side of the oil storage barrel is detachably connected with an oil storage cover, and each of the oil inlet pipes is fixedly connected with the oil storage cover.

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