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CN-122009701-A - Sanitation car embraces bucket arm self-balancing hydraulic control system and sanitation car

CN122009701ACN 122009701 ACN122009701 ACN 122009701ACN-122009701-A

Abstract

The invention discloses a sanitation truck bucket holding mechanical arm self-balancing hydraulic control system which comprises a frame and a telescopic arm, wherein the hydraulic control system is connected with the telescopic arm, the telescopic arm comprises a pull arm, a rocker arm and a lifting arm, and the end part of the lifting arm is connected with a bucket holding mechanism.

Inventors

  • CHENG BIN
  • LIANG ZHIYUAN
  • ZHANG HU
  • ZHU BAOJIANG
  • Gan Maotian
  • DAI JINTAO
  • WANG YONGXING
  • XIANG XI

Assignees

  • 安徽绿美创城环境科技有限公司

Dates

Publication Date
20260512
Application Date
20260109

Claims (10)

  1. 1. The self-balancing hydraulic control system of the sanitation truck barrel holding mechanical arm comprises a frame (1) and a telescopic arm and is characterized in that the hydraulic control system is connected with the telescopic arm, the telescopic arm comprises a pull arm (2), a rocker arm (3) and a lifting arm (4), and the end part of the lifting arm (4) is connected with a barrel holding mechanism.
  2. 2. The sanitation truck bucket holding mechanical arm self-balancing hydraulic control system is characterized in that the rocker arm (3) is located above the frame (1), the top of the pulling arm (2) is located at one side of the rocker arm (3), two ends of the pulling arm (2) are movably connected to the frame (1) and the rocker arm (3), the middle of the rocker arm (3) is hinged to the top end of the lifting arm (4), the hydraulic system comprises a bucket holding oil cylinder (6), a balancing oil cylinder (7), a lifting oil cylinder (8) and an extending oil cylinder (9), the extending oil cylinder (9) is located between the frame (1) and the pulling arm (2), a cylinder body of the extending oil cylinder (9) is arranged at one end of the frame (1), the piston rod end of the extending oil cylinder (9) is hinged to the top end of the rocker arm (3), the lifting oil cylinder (8) is located between the frame (1) and the lifting arm (4), the cylinder body of the lifting oil cylinder (8) is arranged in the middle of the frame (1), the piston rod end of the lifting oil cylinder (8) is hinged to the top end of the lifting arm (4), and the piston rod end of the lifting oil cylinder (8) is hinged to the balancing oil cylinder (24) is connected to the other end of the balancing oil cylinder (24) and the piston rod (24) is hinged to the top end of the balancing oil cylinder (7).
  3. 3. The sanitation truck barrel holding mechanical arm self-balancing hydraulic control system according to claim 2 is characterized in that the barrel holding mechanism comprises two clamping jaws (10), tooth plates (27) are fixedly connected to the end portions of the two clamping jaws (10), the tooth plates (27) are meshed, a mounting frame (26) is arranged above the clamping jaws (10), the tooth plates (27) are rotatably connected to the mounting frame (26), and a cylinder body of a barrel holding cylinder (6) is hinged to the mounting frame (26).
  4. 4. The sanitation truck bucket holding mechanical arm self-balancing hydraulic control system according to claim 2 or 3 is characterized by further comprising a hydraulic oil tank (11), an oil pump (12) and a plurality of electro-hydraulic proportional multi-way valves (13), wherein the oil pump (12) is connected with a load sensitive valve (15), the load sensitive valve (15) is further connected with an overflow valve (16), and the electro-hydraulic proportional multi-way valves (13) are provided with four electro-hydraulic proportional multi-way valves and are respectively connected with the bucket holding oil cylinder (6), the balance oil cylinder (7), the lifting oil cylinder (8) and the extending oil cylinder (9), and each electro-hydraulic proportional multi-way valve (13) is connected with a pressure compensation valve (14).
  5. 5. The sanitation truck barrel holding mechanical arm self-balancing hydraulic control system according to claim 4 is characterized in that a barrel holding oil cylinder (6), a balancing oil cylinder (7), a lifting oil cylinder (8) and an extending oil cylinder (9) are all integrally provided with a balancing valve (22).
  6. 6. The sanitation truck bucket holding mechanical arm self-balancing hydraulic control system according to claim 5 is characterized in that displacement sensors (23) are arranged in the extending oil cylinder (9), the balancing oil cylinder (7) and the lifting oil cylinder (8).
  7. 7. The sanitation truck barrel holding mechanical arm self-balancing hydraulic control system according to claim 2, wherein the bottom end of the mounting plate (24) is connected with an electric guide rail (25), the electric guide rail (25) is horizontally arranged, and the mounting frame (26) is connected with the electric guide rail (25).
  8. 8. The self-balancing hydraulic control system of the sanitation truck bucket holding mechanical arm according to claim 7, wherein the mounting plate (24) is triangular.
  9. 9. The sanitation truck barrel holding mechanical arm self-balancing hydraulic control system according to claim 1, wherein the frame (1) is of a bending structure, and a bottom plate (28) is arranged at the bottom of the frame (1).
  10. 10. An environmental sanitation vehicle is characterized by comprising the self-balancing hydraulic control system of the barrel holding mechanical arm of the environmental sanitation vehicle according to any one of claims 1 to 9.

Description

Sanitation car embraces bucket arm self-balancing hydraulic control system and sanitation car Technical Field The invention belongs to the technical field of sanitation devices, and particularly relates to a self-balancing hydraulic control system of a sanitation truck bucket holding mechanical arm. Background The bucket holding mechanical arm is a device which is additionally arranged on an environmental sanitation vehicle and used for grabbing, lifting and dumping garbage of a garbage can, and generally consists of a pull arm, a rocker arm and a lifting arm. In the process of executing the lifting action of the garbage can, the moving speed between the rocker arm and the lifting arm driving oil cylinder is required to be adjusted in real time to keep the garbage can in a horizontal state all the time, so that secondary pollution caused by excessive inclination of the garbage can is prevented. The common barrel holding mechanical arm in the market at present adopts a servo motor driving and visual control mode, and the mode can meet the working requirements, but the motor is large in size, complex in scheme implementation, high in use cost and maintenance cost and not suitable for the additional installation of sanitation vehicles. The utility model patent with the publication number of CN219175107U discloses a cleaning mechanical arm applied to sanitation vehicles and sanitation vehicles on the day 13 of 6 of 2023, and the cleaning mechanical arm comprises a hairbrush disc, wherein the top surface of the hairbrush disc is fixedly arranged on the bottom surface of a first fixed disc through a screw, the top surface of the first fixed disc is fixedly connected with a hexagonal sleeve, the inside of the hexagonal sleeve is slidably connected with a hexagonal rod, the side walls of the hexagonal sleeve and the hexagonal rod are sleeved with a spring, the top surface of the hexagonal rod is fixedly connected with a second fixed disc, the top surface of the second fixed disc is fixedly provided with a supporting arm through a screw, and the hexagonal sleeve, the hexagonal rod and the spring which can automatically shrink and extend are arranged between the hairbrush disc and the supporting arm. The cleaning mechanical arm applied to the sanitation vehicle cannot solve the technical problems. Disclosure of Invention The invention aims to overcome the defects of the prior art and provides a sanitation truck bucket holding mechanical arm self-balancing hydraulic control system for preventing a garbage can from excessively tilting in the lifting process. In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: The self-balancing hydraulic control system of the sanitation truck barrel holding mechanical arm comprises a frame and a telescopic arm, wherein the hydraulic control system is connected with the telescopic arm, the telescopic arm comprises a pull arm, a rocker arm and a lifting arm, and the end part of the lifting arm is connected with a barrel holding mechanism. The hydraulic system comprises a barrel holding cylinder, a balance cylinder, a lifting cylinder and an extending cylinder, wherein the extending cylinder is arranged between the frame and the pull arm, a cylinder body of the extending cylinder is arranged at one end of the frame, a piston rod end of the extending cylinder is hinged to the top end of the rocker arm, the lifting cylinder is arranged between the frame and the lifting arm, a cylinder body of the lifting cylinder is arranged at the middle part of the frame, a piston rod end of the lifting cylinder is hinged to the top end of the lifting arm, the bottom end of the lifting arm is connected with a mounting plate, a cylinder body of the balance cylinder is hinged to the other end of the rocker arm, and a piston rod end of the balance cylinder is hinged to the top end of the mounting plate. The barrel holding mechanism comprises two clamping jaws, wherein toothed plates are fixedly connected to the end parts of the two clamping jaws and meshed with each other, a mounting frame is arranged above the clamping jaws, the toothed plates are rotatably connected to the mounting frame, and a cylinder body of the barrel holding cylinder is hinged to the mounting frame. The hydraulic system further comprises a hydraulic oil tank, an oil pump and a plurality of electro-hydraulic proportional multi-way valves, wherein the oil pump is connected with a load sensitive valve, the load sensitive valve is further connected with an overflow valve, the electro-hydraulic proportional multi-way valves are provided with four electro-hydraulic proportional multi-way valves and are respectively connected with a barrel holding oil cylinder, a balance oil cylinder, a lifting oil cylinder and an extending oil cylinder, and each electro-hydraulic proportional multi-way valve is connected with a pressure compensation valve. And the barrel holding cylinder, the balance cylinder,