Operating valve rod and accelerator linked device for intelligent lorry-mounted crane

Abstract

The invention discloses an operating valve rod and accelerator linked device for an intelligent lorry-mounted crane. One, two or more sets of devices with the same structure are arranged. According to each set of device, a cam assembly is connected to a mounting plate through a pin D, and is provided with two cams in different shapes, namely a surface A cam and a surface B cam; two guide wheels are connected with a first connecting rod and a fourth connecting rod through a pin C respectively, and are respectively contacted with the two cams in different shapes on the cam assembly; the first and fourth connecting rods are respectively hinged with a third connecting rod and a second connecting rod through a pin roll; the first and fourth connecting rods or the second and third connecting rods are connected to the mounting plate through a pin B; the second and third connecting rods are respectively connected with a valve core of a multiway valve and a cable accelerator; and an operating handle is connected with the cam assembly. An operator can easily switch on or off a hydraulic valve by one hand can simultaneously increase or decrease the accelerator, the device is easy to operate, coordinated, uniform, high-efficiency, and high in safety.

Description

technical field [0001] The invention relates to the technical field of engineering machinery, in particular to a linkage device for operating a valve stem and accelerator for an intelligent truck-mounted crane. Background technique [0002] At present, the current status and shortcomings of truck-mounted cranes in my country are as follows: [0003] 1. There are few varieties and low output. my country's truck-mounted cranes are now in the primary development stage. There are few varieties and small and medium tonnages are repeated. So far, a complete series of large, medium and small has not yet been formed. The annual output is only equivalent to the production of a foreign manufacturer. ability. [0004] 2. The moment of the crane is small, and the technical level is low. my country's truck-mounted cranes are mainly straight arm winches, which are limited by the chassis of domestic cars. The lifting moment is small, and other performance indicators are generally lower th...

AI Technical Summary

Problems solved by technology

[0003] 1. There are few varieties and low output. my country's truck-mounted cranes are now in the primary development stage. There are few varieties and small and medium tonnages are repeated. So far, a complete series of large, medium and small has not yet been formed. The annual output is only equivalent to the production of a foreign manufacturer. ability

[0004] 2. The moment of the crane is small and the technical level is low. my country's truck-mounted cranes are mainly straight-arm winches, which are limited by the chassis of domestic automobiles.

[0005] 3. The safety devices are not complete and the operation is inconvenient. The truck-mounted cranes in my country are only equipped with general safety devices such as lifting height, limit and balance valves, and overflow valves, and all of them are manually operated. Electronic technology has long been widely used abroad. on a truck mounted crane

[0006] 4. The function is single, and the truck-mounted cranes in my country are mainly used for lifting operations and transportation

[0007] 5. The appearance is not beautiful. The appearance design and color of the truck-mounted cranes in my country are monotonous, ignoring the coordination with the appearance of the car

[0008] 6. The hydraulic control valve stem and power throttle acceleration of the truck-mounted crane are operated by the operator with two hands respectively. It is difficult to cooperate with the two hands, and it is prone to misoperation, laborious operation, high labor intensity, and uneven acceleration, resulting in lifting When the impact load is large, or the vibration of the whole machine is too large, there are hidden dangers of unsafety

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