New energy electric sanitation vehicle chassis load detection device

Abstract

The invention relates to the technical field of new energy electric vehicle chassis load detection, and discloses a new energy electric sanitation vehicle chassis load detection device which comprises a detection base, a to-be-detected vehicle chassis unit is supported in the middle of the top of the detection base, and the to-be-detected vehicle chassis unit comprises a chassis and a wheel set. The top of the detection base is provided with a positioning assembly matched with a wheel set. According to the load detection device, the hydraulic cylinder unit drives the load support mechanism to integrally move downwards to carry out load extrusion on the to-be-detected vehicle chassis unit, so that load pressure is provided for the to-be-detected vehicle chassis unit, and in the loading process, a driving motor is started to drive an eccentric wheel to rotate and drive a cam shell to roll at the same time; according to the invention, an acting force of secondary extrusion load is provided, and vibration generated by high-speed rotation of the eccentric wheel is used for simulating vibration generated by the vehicle chassis in the actual driving process, so that the actual vehicle using state is simulated, and the accuracy of chassis detection is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of chassis load detection of new energy electric vehicles, and more specifically, to a chassis load detection device of a new energy electric sanitation vehicle. Background Art

[0002] The electric sanitation vehicle is a new energy vehicle, mainly used for urban sanitation work, including cleaning, garbage collection and transportation. The working principle of the electric sanitation vehicle is mainly to use the motor to drive the side brushes on both sides of the sweeper to sweep the garbage to the middle, and then the main brush sweeps up the concentrated garbage and sends it to the garbage storage box. At the same time, the internal exhaust system generates strong suction to filter out the dust and prevent the production of gases harmful to the human body.

[0003] During the production and development process of existing electric sanitation vehicles, it is necessary to perform load testing on the chassis of the sanitation vehicles. For example, the prior art publication number is: CN112485021B, which mainly uses static pressure to test the chassis of the sanitation vehicle. By continuously adjusting the pressure on the chassis of the vehicle and cooperating with sensors to realize real-time pressure detection function, the load-bearing state of the chassis of the vehicle can be judged.

[0004] In this technical solution, static detection is adopted for the chassis of the vehicle. However, during the actual use of the vehicle, the extrusion pressure on the chassis is constantly changing. Especially when the vehicle is under load, the pressure is still in an irregular changing state due to the influence of road conditions, rather than a linear changing state. Therefore, in order to provide a load state of the vehicle chassis that is more in line with the actual vehicle use environment, it is necessary to optimize the existing structure. Summary of the invention

[0005] The present invention provides a new energy electric sanitation vehicle chassis load detection device, which solves the technical problem that the existing sanitation vehicle chassis load detection method in the related art is relatively single and lacks the detection of load pressure changes during actual use of the vehicle.

[0006] The present invention achieves the above-mentioned purpose through the following technical solutions: A new energy electric sanitation vehicle chassis load detection device comprises a detection base, the middle part of the top of the detection base supports a chassis unit of a vehicle to be detected, the chassis unit of the vehicle to be detected comprises a chassis and a wheel set, and a positioning component adapted to the wheel set is arranged on the top of the detection base, and the wheel set is positioned by the positioning component; A detection unit is provided at the top of the detection base, located directly below the chassis unit of the vehicle to be detected, and the detection unit includes an infrared sensor and an acoustic wave detector; The infrared sensor is used for real-time detection of the distance to the bottom of the chassis unit of the vehicle to be detected, and the acoustic wave detector is used for flaw detection of the bottom structure of the chassis unit of the vehicle to be detected; A pressure sensor is disposed inside the detection base, and the detection unit and the pressure sensor are both electrically connected to an external central control unit; A hydraulic lifting unit is supported at the four corners of the top of the detection base, and the hydraulic lifting unit includes a hydraulic cylinder unit. A mounting top plate is provided at the bottom of the hydraulic cylinder unit, and a load support mechanism is provided at the bottom of the mounting top plate. A secondary load mechanism is provided between the load support mechanism and the mounting top plate, and a linkage mechanism is provided at one end of the front side of the detection base.

[0007] As a further optimization scheme of the present invention, the load support mechanism includes return springs arranged at the four corners of the bottom of the mounting top plate, and a load truss is commonly arranged at the bottom of the four groups of return springs. The load truss is a frame structure made of steel with a yield strength greater than 1180MPa and a tensile strength greater than 1380MPa. The four corners of the top of the load truss are all provided with support slide bars that penetrate to the top of the mounting top plate. The return spring is sleeved on the outside of the support slide bar, and a limiting ring compatible with the mounting top plate is arranged on the top of the outer side of the support slide bar, and the limiting ring is used to limit and support the natural drooping position of the load support mechanism as a whole.

[0008] As a further optimization scheme of the present invention, the hydraulic lifting unit also includes a supporting frame arranged at the four corners of the top of the detection base, the top of the supporting frame supports a supporting top plate, and a hydraulic cylinder unit is arranged in the middle of the supporting top plate. The hydraulic cylinder unit is interconnected with an external hydraulic pump, and the hydraulic cylinder unit provides a downward load extrusion force to the installation top plate.

[0009] As a further optimization scheme of the present invention, the secondary load mechanism includes support seats arranged at both ends of the mounting top plate, and support slide grooves that are compatible with the support seats are arranged inside the two ends of the mounting top plate, and a second support slider that slides inside the support slide groove is arranged at one end of the support seat close to the support slide groove, and an external support shaft is arranged at one end of the two groups of support seats close to each other, and a cam housing is commonly arranged at one end of the two groups of external support shafts close to each other, and the outer side of the cam housing is in contact with the top surface of the load truss, and the cam housing rolls back and forth on the top surface of the load truss.

[0010] As a further optimization scheme of the present invention, a mounting plate is provided on one side of a group of the support seats, a first supporting sliding block which is adapted to the supporting slide groove is provided on the top of the mounting plate, a driving motor is provided at one end of the mounting plate, and the output end of the driving motor passes through the mounting plate and is provided with a second large fly gear and a first small fly gear.

[0011] As a further optimization scheme of the present invention, a first large fly gear is arranged on the outer side of a group of the outer support shafts, the first large fly gear is meshed with the first small fly gear, the middle parts of the two groups of the outer support shafts close to one end are connected with a central shaft by a common bearing, an eccentric wheel is arranged in the middle part of the outer side of the central shaft, the end of the central shaft close to the driving motor passes through the outer support shaft and is provided with a second small fly gear, the second small fly gear is meshed with the second large fly gear.

[0012] As a further optimization scheme of the present invention, the driving motor drives the second large fly gear and the first small fly gear to rotate, and drives the outer support shaft to rotate slowly through the gear ratio structure of the first small fly gear and the first large fly gear, and drives the second small fly gear to rotate at high speed through the gear ratio mechanism of the second large fly gear and the second small fly gear, thereby driving the eccentric wheel to rotate at high speed, and driving the cam housing to rotate slowly at the top of the load truss.

[0013] As a further optimization scheme of the present invention, a support cylinder is commonly provided on the outer sides of the two groups of outer support shafts close to one end thereof, the support cylinder is a hollow structure and is sleeved on the outer side of the eccentric wheel, a cam housing is sleeved on the outer side of the support cylinder, the two ends of the inner side of the cam housing are fastened to the two ends of the outer side of the support cylinder, a paddle piece is provided on the inner wall of the cam housing, and filling sand is poured between the inside of the cam housing and the outside of the support cylinder.

[0014] As a further optimization scheme of the present invention, the linkage mechanism includes a support link connected to a group of support seats, the bottom of the support link is attached to the front end of the detection base, a displacement groove is arranged inside the front end of the detection base, and a displacement block that is compatible with the displacement groove is arranged at the bottom of the support link.

[0015] As a further optimization scheme of the present invention, a second traction rope and a first traction rope are respectively arranged on both sides of the bottom of the supporting connecting rod, and conveying holes connected to the displacement groove are arranged on both sides of the front end of the detection base, and the other ends of the first traction rope and the second traction rope respectively penetrate into the interior of the displacement groove from the corresponding conveying holes and are connected to the detection unit.

[0016] The beneficial effects of the present invention are as follows: the present invention drives the load support mechanism to move downward as a whole through the hydraulic cylinder unit to perform load extrusion on the top of the chassis unit of the vehicle to be detected, thereby providing load pressure for the chassis unit of the vehicle to be detected; during the loading process, the eccentric wheel is driven to rotate by starting the driving motor, and the cam housing is driven to roll at the same time, and the rolling structure of the cam housing changes to provide a secondary extrusion load force to the chassis unit of the vehicle to be detected at the bottom of the load truss, and vibration is generated by the high-speed rotation of the eccentric wheel to simulate the vibration generated by the vehicle chassis during actual driving, thereby realizing the simulation of the actual vehicle use state and improving the accuracy of chassis detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is an enlarged schematic diagram of the connection structure of the detection base, linkage mechanism, and hydraulic lifting unit in the present invention; Figure 3 It is an enlarged schematic diagram of the bottom connection structure where the top plate is installed in the present invention; Figure 4 It is a schematic diagram of the exploded structure of the transmission component connection at the drive motor in the present invention; Figure 5 It is an enlarged schematic diagram of the connection structure at the cam housing in the present invention; Figure 6 It is an enlarged cross-sectional view of the connection structure at the cam housing in the present invention.

[0018] In the figure: 100, detection base; 200, linkage mechanism; 300, chassis unit of the vehicle to be detected; 400, load support mechanism; 500, hydraulic lifting unit; 600, installation top plate; 700, detection unit; 800, secondary load mechanism; 201, supporting connecting rod; 202, first traction rope; 203, second traction rope; 204, conveying through hole; 205, displacement groove; 401, load truss; 402, return spring; 403, support slide bar; 501, support frame; 502, support top plate; 503, hydraulic cylinder unit; 801, cam housing; 802, support seat; 803, mounting plate; 804, support slide; 805, first large fly gear; 806, second large fly gear; 807, drive motor; 808, first small fly gear; 809, second small fly gear; 810, first support slider; 811, outer support shaft; 812, second support slider; 813, support cylinder; 814, eccentric wheel; 815, filling sand; 816, toggle piece; 817, center shaft. DETAILED DESCRIPTION

[0019] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the present specification. Various examples may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples. Example 1

[0020] like Figure 1 , Figure 2 As shown, a new energy electric sanitation vehicle chassis load detection device includes a detection base 100, the middle part of the top of the detection base 100 supports a chassis unit 300 of a vehicle to be detected, the chassis unit 300 of the vehicle to be detected includes a chassis and a wheel set, and a positioning component adapted to the wheel set is provided on the top of the detection base 100, and the wheel set is positioned by the positioning component; A detection unit 700 is disposed on the top of the detection base 100, directly below the chassis unit 300 of the vehicle to be detected. The detection unit 700 includes an infrared sensor and an acoustic wave detector. The infrared sensor is used for real-time detection of the distance to the bottom of the chassis unit 300 of the vehicle to be inspected, and the acoustic wave detector is used for flaw detection of the bottom structure of the chassis unit 300 of the vehicle to be inspected; A pressure sensor is provided inside the detection base 100, and both the detection unit 700 and the pressure sensor are electrically connected to an external central control unit; like Figure 2 As shown, the four corners of the top of the detection base 100 support a hydraulic lifting unit 500, the hydraulic lifting unit 500 includes a hydraulic cylinder unit 503, the bottom of the hydraulic cylinder unit 503 is provided with a mounting top plate 600, the hydraulic lifting unit 500 also includes a support frame 501 provided at the four corners of the top of the detection base 100, the top of the support frame 501 supports a supporting top plate 502, the middle of the supporting top plate 502 is provided with a hydraulic cylinder unit 503, the hydraulic cylinder unit 503 is connected to the external hydraulic pump, and the hydraulic cylinder unit 503 provides a downward load extrusion force to the mounting top plate 600; like Figure 3As shown, a load support mechanism 400 is provided at the bottom of the mounting top plate 600, and the load support mechanism 400 includes reset springs 402 arranged at the four corners of the bottom of the mounting top plate 600, and a load truss 401 is commonly provided at the bottom of the four groups of reset springs 402. The load truss 401 is a frame structure made of steel with a yield strength greater than 1180MPa and a tensile strength greater than 1380MPa. Support slide bars 403 penetrating to the top of the mounting top plate 600 are provided at the four corners of the top of the load truss 401, and the reset spring 402 is sleeved on the outside of the support slide bar 403. A limiting ring adapted to the mounting top plate 600 is provided on the top of the outer side of the support slide bar 403, and the limiting ring is used to limit and support the natural drooping position of the load support mechanism 400 as a whole. like Figures 3 to 6 As shown, a secondary load mechanism 800 is arranged between the load support mechanism 400 and the mounting top plate 600, and the secondary load mechanism 800 includes support seats 802 arranged at both ends of the mounting top plate 600, and support slide grooves 804 that are adapted to the support seats 802 are arranged inside the two ends of the mounting top plate 600, and a second support slider 812 that slides and moves inside the support slide groove 804 is arranged at one end of the support seat 802 close to the support slide groove 804, and an external support shaft 811 is arranged at the ends of the two sets of support seats 802 close to each other. The two sets of outer support shafts 811 are provided with a cam housing 801 at one end close to each other. The outer side of the cam housing 801 is in contact with the top surface of the load truss 401, and the cam housing 801 reciprocates and rolls on the top surface of the load truss 401. A mounting plate 803 is provided on one side of a set of support seats 802. A first supporting slider 810 adapted to the supporting slide groove 804 is provided on the top of the mounting plate 803. A driving motor 807 is provided at one end of the mounting plate 803. The output end of the driving motor 807 passes through the mounting plate. 803 is provided with a second large fly gear 806 and a first small fly gear 808, a first large fly gear 805 is provided on the outer side of a group of outer support shafts 811, the first large fly gear 805 and the first small fly gear 808 are meshed with each other, the middle parts of the two groups of outer support shafts 811 close to each other are connected with a central shaft 817 by a common bearing, the middle part of the outer side of the central shaft 817 is provided with an eccentric wheel 814, the end of the central shaft 817 close to the driving motor 807 passes through the outer support shaft 811 and is provided with a second small fly gear 809, the second small fly gear 809 is provided with a second small fly gear 809, and the second small fly gear 809 is provided with a second small fly gear 809. The gear 809 is meshed with the second large fly gear 806, and the driving motor 807 drives the second large fly gear 806 and the first small fly gear 808 to rotate, and the outer support shaft 811 is driven to rotate slowly through the gear ratio structure of the first small fly gear 808 and the first large fly gear 805, and the second small fly gear 809 is driven to rotate at a high speed through the gear ratio mechanism of the second large fly gear 806 and the second small fly gear 809, thereby driving the eccentric wheel 814 to rotate at a high speed, and driving the cam housing 801 to rotate slowly at the top of the load truss 401; A supporting cylinder 813 is commonly provided on the outer sides of the two sets of outer supporting shafts 811 close to one end. The supporting cylinder 813 is a hollow structure and is sleeved on the outer side of the eccentric wheel 814. A cam housing 801 is sleeved on the outer side of the supporting cylinder 813. The two ends of the inner side of the cam housing 801 are fastened to the two ends of the outer side of the supporting cylinder 813. A toggle piece 816 is provided on the inner wall of the cam housing 801. Filling sand 815 is poured between the inside of the cam housing 801 and the outside of the supporting cylinder 813. A linkage mechanism 200 is provided at the front end of the detection base 100, and the linkage mechanism 200 includes a support link 201 connected to a group of support seats 802, the bottom of the support link 201 is attached to the front end of the detection base 100, and a displacement slide groove is provided inside the front end of the detection base 100, and a displacement block compatible with the displacement slide groove is provided at the bottom of the support link 201, and a second traction rope 203 and a first traction rope 202 are respectively provided on both sides of the bottom of the support link 201, and both sides of the front end of the detection base 100 are provided with conveying holes 204 interconnected with the displacement groove 205, and the other ends of the first traction rope 202 and the second traction rope 203 respectively penetrate into the interior of the displacement groove 205 from the corresponding conveying holes 204 and are connected to the detection unit 700.

[0021] The use process of the chassis load detection device of the new energy electric sanitation vehicle proposed in this embodiment is as follows. When the chassis load detection device of the sanitation vehicle is in use, the chassis unit 300 of the vehicle to be detected is transported to the middle position of the top of the detection base 100 and positioned, and then the hydraulic cylinder unit 503 is started to drive the installation top plate 600 to move downward. As the installation top plate 600 moves downward, the bottom of the load truss 401 and the top of the chassis unit 300 of the vehicle to be detected fit each other. As the hydraulic cylinder unit 503 continues to apply pressure, the set load value is applied to the chassis unit 300 of the vehicle to be detected, and then the electrical signal is transmitted to the central control unit for storage and analysis through the pressure sensor inside the detection base 100; Furthermore, when the load of the hydraulic cylinder unit 503 on the chassis unit 300 of the vehicle to be tested is at a certain set stable value, the drive motor 807 is started to drive the first small fly gear 808 and the second large fly gear 806 to rotate, and the first small fly gear 808 drives the first large fly gear 805 to rotate, and then the first large fly gear 805 drives the outer support shaft 811 to rotate, and the rotation of the outer support shaft 811 drives the cam housing 801 to roll and displace on the top of the load truss 401, and the structure of the cam housing 801 produces a secondary squeezing effect on the bottom of the load truss 401, thereby simulating the instantaneous pressure generated by the sanitation vehicle being subjected to road bumps and the like when driving under load; The second large flywheel 806 drives the second small flywheel 809 to rotate, thereby driving the central shaft 817 to rotate, and the central shaft 817 drives the eccentric wheel 814 to deflect and generate vibration, thereby transmitting the vibration to the bottom of the load truss 401, generating a vibration effect on the chassis unit 300 of the vehicle to be tested, thereby simulating the irregular vibration of the vehicle chassis during driving due to operation; As the cam housing 801 rotates, the toggle plate 816 is driven to rotate accordingly. The toggle plate 816 toggles the filling sand 815, so that the filling sand 815 also rotates accordingly. However, under the action of gravity, the filling sand 815 falls and generates an impact force on the cam housing 801 as a whole, thereby once again simulating the situation where the vehicle is subjected to an irregular impact force under load, further improving the accuracy of the vehicle chassis detection. During the rolling process of 8101, the supporting link 201 is driven to follow the displacement, and the first traction rope 202 or the second traction rope 203 is pulled by the supporting link 201 to pull the detection unit 700 to move horizontally in the displacement slot 205, so that the position of the detection unit 700 corresponds to the position of the cam housing 801, and the infrared sensor in the detection unit 700 detects the minimum ground clearance of the chassis unit 300 of the vehicle to be detected after being loaded, and transmits the electrical signal to the position of the central control unit for storage and analysis, and at the same time, the connection changes inside the structure of the chassis unit 300 of the vehicle to be detected during the load force process are detected by the acoustic wave detector, and the detection signal is transmitted to the central control unit for storage and analysis, thereby improving the detection accuracy of the chassis unit 300 of the vehicle to be detected; When it is necessary to drive the cam housing 801 to roll in the opposite direction, the drive motor 807 is started to rotate in the opposite direction. At the same time, when the chassis unit 300 of the vehicle to be tested is in a group of load value measurements, the hydraulic cylinder unit 503 continues to apply pressure to increase the load value. When the detection value is reached, the above steps are repeated to realize the data detection function of the vehicle status under different load values.

[0022] The specific implementation methods of this embodiment are described above, but this embodiment is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Ordinary technicians in this field can also make many forms inspired by this embodiment, all of which are within the protection of this embodiment.

Claims

1. A new energy electric sanitation vehicle chassis load detection device, characterized in that: The invention comprises a detection base (100), wherein a chassis unit (300) of a vehicle to be detected is supported in the middle of the top of the detection base (100), wherein the chassis unit (300) of the vehicle to be detected comprises a chassis and a wheel set, and a positioning component adapted to the wheel set is arranged on the top of the detection base (100), and the wheel set is positioned by the positioning component; A detection unit (700) is provided on the top of the detection base (100) at a position directly below the chassis unit (300) of the vehicle to be detected, and the detection unit (700) comprises an infrared sensor and a sound wave detector; The infrared sensor is used for real-time detection of the position distance of the bottom of the chassis unit (300) of the vehicle to be detected, and the sonic wave detector is used for flaw detection of the bottom structure of the chassis unit (300) of the vehicle to be detected; A pressure sensor is disposed inside the detection base (100), and the detection unit (700) and the pressure sensor are both electrically connected to an external central control unit; The four corners of the top of the detection base (100) support a hydraulic lifting unit (500), the hydraulic lifting unit (500) comprising a hydraulic cylinder unit (503), a mounting top plate (600) being provided at the bottom of the hydraulic cylinder unit (503), a load support mechanism (400) being provided at the bottom of the mounting top plate (600), a secondary load mechanism (800) being provided between the load support mechanism (400) and the mounting top plate (600), and a linkage mechanism (200) being provided at one end of the front face of the detection base (100).

2. A chassis load detection device for a new energy electric sanitation vehicle according to claim 1, characterized in that: The load support mechanism (400) comprises return springs (402) arranged at the four corners of the bottom of the mounting top plate (600); a load truss (401) is commonly arranged at the bottom of the four groups of return springs (402); the load truss (401) is a frame structure made of steel with a yield strength greater than 1180 MPa and a tensile strength greater than 1380 MPa; support slide bars (403) penetrating to the top of the mounting top plate (600) are arranged at the four corners of the top of the load truss (401); the return spring (402) is sleeved on the outside of the support slide bar (403); a limit ring matched with the mounting top plate (600) is arranged on the top of the outer side of the support slide bar (403); and the limit ring is used to limit and support the natural drooping position of the load support mechanism (400) as a whole.

3. A chassis load detection device for a new energy electric sanitation vehicle according to claim 1, characterized in that: The hydraulic lifting unit (500) further comprises a support frame (501) arranged at the four corners of the top of the detection base (100); the top of the support frame (501) supports a support top plate (502); a hydraulic cylinder unit (503) is arranged in the middle of the support top plate (502); the hydraulic cylinder unit (503) is interconnected with an external hydraulic pump, and a downward load squeezing force is provided to the mounting top plate (600) through the hydraulic cylinder unit (503).

4. A chassis load detection device for a new energy electric sanitation vehicle according to claim 1, characterized in that: The secondary load mechanism (800) comprises support seats (802) arranged at both ends of the mounting top plate (600), support grooves (804) adapted to the support seats (802) are arranged inside the two ends of the mounting top plate (600), and a second support slider (812) slidingly displaced inside the support groove (804) is arranged at one end of the support seat (802) close to the support groove (804), and both ends of the two groups of support seats (802) close to each other are provided with an external support shaft (811), and both ends of the two groups of external support shafts (811) close to each other are provided with a cam housing (801), the outer side of the cam housing (801) is in contact with the top surface of the load truss (401), and the cam housing (801) reciprocates and rolls on the top surface of the load truss (401).

5. A chassis load detection device for a new energy electric sanitation vehicle according to claim 4, characterized in that: A mounting plate (803) is provided on one side of a group of the support seats (802); a first supporting sliding block (810) adapted to the supporting sliding groove (804) is provided on the top of the mounting plate (803); a driving motor (807) is provided at one end of the mounting plate (803); an output end of the driving motor (807) passes through the mounting plate (803) and is provided with a second large flying gear (806) and a first small flying gear (808).

6. A chassis load detection device for a new energy electric sanitation vehicle according to claim 5, characterized in that: A first large fly gear (805) is disposed on the outer side of one group of the outer support shafts (811), the first large fly gear (805) and the first small fly gear (808) mesh with each other, a central shaft (817) is connected to the middle part of the two groups of the outer support shafts (811) close to one end thereof via a common bearing, an eccentric wheel (814) is disposed in the middle part of the outer side of the central shaft (817), an end of the central shaft (817) close to the driving motor (807) passes through the outer support shaft (811) and is provided with a second small fly gear (809), and the second small fly gear (809) and the second large fly gear (806) mesh with each other.

7. A chassis load detection device for a new energy electric sanitation vehicle according to claim 6, characterized in that: The driving motor (807) drives the second large fly gear (806) and the first small fly gear (808) to rotate, and drives the outer support shaft (811) to rotate slowly through the gear ratio structure of the first small fly gear (808) and the first large fly gear (805), and drives the second small fly gear (809) to rotate at high speed through the gear ratio mechanism of the second large fly gear (806) and the second small fly gear (809), thereby driving the eccentric wheel (814) to rotate at high speed, and driving the cam housing (801) to rotate slowly at the top of the load truss (401).

8. A chassis load detection device for a new energy electric sanitation vehicle according to claim 7, characterized in that: A supporting cylinder (813) is commonly provided on the outer sides of the two groups of outer supporting shafts (811) close to one end. The supporting cylinder (813) is a hollow structure and is sleeved on the outer side of the eccentric wheel (814). A cam housing (801) is sleeved on the outer side of the supporting cylinder (813). The two ends of the inner side of the cam housing (801) are fastened to the two ends of the outer side of the supporting cylinder (813). A paddle (816) is provided on the inner wall of the cam housing (801). Filling sand (815) is poured between the inside of the cam housing (801) and the outside of the supporting cylinder (813).

9. The chassis load detection device of a new energy electric sanitation vehicle according to claim 1 is characterized in that: The linkage mechanism (200) comprises a supporting connecting rod (201) interconnected with a group of supporting seats (802); the bottom of the supporting connecting rod (201) is fitted to a front end of the detection base (100); a displacement slide groove is provided inside the front end of the detection base (100); and a displacement block that is adapted to the displacement slide groove is provided at the bottom of the supporting connecting rod (201).

10. A chassis load detection device for a new energy electric sanitation vehicle according to claim 9, characterized in that: A second traction rope (203) and a first traction rope (202) are respectively arranged on both sides of the bottom of the supporting connecting rod (201); a conveying through hole (204) which is interconnected with the displacement groove (205) is arranged on both sides of one end of the front side of the detection base (100); the other ends of the first traction rope (202) and the second traction rope (203) respectively penetrate into the interior of the displacement groove (205) from the corresponding conveying through holes (204) and are interconnected with the detection unit (700).

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