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CN-122014433-A - Throttle linkage device and lorry-mounted crane

CN122014433ACN 122014433 ACN122014433 ACN 122014433ACN-122014433-A

Abstract

The invention relates to the technical field of engineering machinery and discloses an accelerator linkage device and a lorry-mounted crane, wherein the accelerator linkage device comprises a stay rope and a steering trigger assembly, and the stay rope is connected with an accelerator control line; the plurality of groups of steering trigger components are mutually independent along the first direction, the pull ropes are arranged around the steering trigger components along the second direction, and each steering trigger component can drive the throttle control line to move along the forward direction or the reverse direction through the pull ropes. The plurality of groups of steering trigger components are mutually independent along the first direction, each component can be independently triggered, and the pull rope is arranged around the steering trigger components along the second direction in a surrounding or penetrating way to form a linkage structure. The flexible of the stay cord enables a plurality of steering trigger components to be controlled in a superposition way, allows the accelerator to be acted on from different positions or through a plurality of input sources simultaneously or sequentially, and realizes accumulation or cooperation of control force.

Inventors

  • WANG XIANYIN
  • LUO WEI
  • ZHANG YUN
  • ZHANG XIANG
  • DENG CHANGYIN

Assignees

  • 中联重科(重庆)起重装备有限公司
  • 中联重科股份有限公司

Dates

Publication Date
20260512
Application Date
20260323

Claims (10)

  1. 1. A throttle linkage, the throttle linkage comprising: a pull rope (1) connected with an accelerator control line (3); The steering trigger assemblies (2) are arranged in a plurality of groups in a mutually independent mode along a first direction, the pull ropes (1) are enclosed into a linkage space along a second direction, the steering trigger assemblies (2) are contained in the linkage space, the steering trigger assemblies (2) can pull or release the pull ropes (1), the pull ropes (1) extend or retract relative to the throttle control line (3), and the throttle control line (3) is driven to move in the forward direction or the reverse direction.
  2. 2. The throttle linkage of claim 1, the accelerator linkage device is characterized by further comprising: the limiting structure (4) is arranged on two sides of the steering trigger assembly (2) in a surrounding mode along the second direction, the limiting structure (4) and the steering trigger assembly (2) are arranged on the same plane, a limiting space is formed between the steering trigger assembly (2) and the limiting structure along the first direction, and the pull rope (1) is located in the limiting space.
  3. 3. The throttle linkage device according to claim 2, characterized in that the limit structure (4) comprises a plurality of limit components (41), the limit components (41) are arranged independently along the first direction, and one steering trigger component (2) is arranged between any two adjacent limit components (41).
  4. 4. A throttle linkage according to claim 3, characterized in that each of the limit assemblies (41) comprises two limit wheels (411), the two limit wheels (411) are arranged on both sides of the steering trigger assembly (2) along the second direction, and the limit wheels (411) can rotate around their own axes.
  5. 5. The throttle linkage according to any one of claims 1 to 4, characterized in that each of the steering trigger assemblies (2) comprises: A handle (21); The shifting wheel (22) is connected with the handle (21) and can synchronously rotate under the drive of the handle (21) so as to shift the pull rope (1).
  6. 6. The throttle linkage of claim 5, the accelerator linkage device is characterized by further comprising: The mounting bracket (5) comprises a mounting top plate (51), a mounting bottom plate (52) and a connecting vertical plate (53), wherein the connecting vertical plate (53) is connected between the mounting top plate (51) and the mounting bottom plate (52), a mounting space is formed between the mounting top plate (51) and the mounting bottom plate (52), and the pull rope (1) and the deflector wheel (22) are arranged in the mounting space.
  7. 7. The throttle linkage according to claim 6, characterized in that the mounting bracket (5) further comprises a connecting shaft (54) connected between the mounting top plate (51) and the mounting bottom plate (52); The steering trigger assembly (2) further comprises a transmission part (23), the driving wheel (22) and the handle (21) are connected with the transmission part (23), the transmission part (23) is connected with the connecting shaft (54), the steering trigger assembly (2) is arranged at intervals on the connecting shaft (54) through the transmission part (23), the transmission part (23) can rotate around the connecting shaft (54), and the transmission part (23) is used for enabling the driving wheel (22) and the handle (21) to rotate synchronously.
  8. 8. Throttle linkage according to any of claims 1-4, characterized in that a counterweight assembly (6) is further connected between the pull rope (1) and the throttle control line (3), the counterweight assembly (6) being adapted to move with the pull rope (1).
  9. 9. The throttle linkage according to any one of claims 1 to 4, characterized in that an elastic member (64) is further connected between the pull rope (1) and the throttle control line (3), and when the steering trigger assembly (2) rotates, the pull rope (1) is pulled, and the elastic member (64) is pulled by the pull rope (1), so that the elastic member (64) has elastic potential energy for resetting.
  10. 10. A lorry-mounted crane, characterized in that it comprises a gas linkage according to any one of claims 1 to 9.

Description

Throttle linkage device and lorry-mounted crane Technical Field The invention belongs to the technical field of engineering machinery, and particularly relates to an accelerator linkage device and a lorry-mounted crane. Background The truck crane is a device for realizing lifting, turning, lifting and the like of cargoes through a hydraulic lifting and telescoping system, wherein the actions of functional components such as a large arm, a small arm and the like are controlled through control valves, the whole truck crane is usually assembled on a truck, and the power of the crane and the truck on the truck crane is driven by an engine of a chassis of the truck. In order to enable the on-board crane to quickly perform work, an operator typically needs to operate the function operating handle and the engine throttle controller simultaneously, and by controlling the function operating handle, the crane can perform a specified motion and simultaneously operate the throttle controller to change the rotational speed of the engine, thereby controlling the operation speed of the crane. However, in the prior art, after the displacement information of the handle is collected through the two rods, the displacement information is transmitted to the throttle pull wire through the connecting rod, and the two rods are connected through the connecting rod, so that the two rods are connected through the connecting rod, the actions are mutually related, the throttle linkage during the positive and negative combined action cannot be realized, the operation of the handle with the largest rotation amplitude can only be executed, and the superposition control cannot be realized. Disclosure of Invention In order to overcome at least one of the defects or shortcomings in the prior art, the invention provides an accelerator linkage device and a lorry-mounted crane, and the accelerator can be controlled when the forward and reverse combined actions of a handle are realized. To achieve the above object, an aspect of the present invention provides a throttle linkage, including: A pull rope connected with the throttle control line; The steering trigger assemblies are arranged in a mutually independent mode along a first direction, the pull ropes are enclosed to form a linkage space along a second direction, the steering trigger assemblies are contained in the linkage space, and each steering trigger assembly can pull or release the pull ropes, so that the pull ropes extend or shrink relative to the throttle control line and drive the throttle control line to move in the forward direction or the reverse direction. In some embodiments, the throttle linkage further comprises: The limiting structure is arranged on two sides of the steering trigger assembly in a surrounding mode along the second direction, the limiting structure and the steering trigger assembly are arranged on the same plane, a limiting space is formed between the steering trigger assembly and the limiting structure along the first direction, and the pull rope is located in the limiting space. In some embodiments, the limiting structure includes a plurality of limiting components, the plurality of limiting components are disposed along the first direction independently, and one steering trigger component is disposed between any two adjacent limiting components. In some embodiments, each of the limiting assemblies includes two limiting wheels, the two limiting wheels are respectively disposed on two sides of the steering trigger assembly along the second direction, and the limiting wheels can rotate around their own axes. In some embodiments, each of the steering trigger assemblies includes: A handle; the shifting wheel is connected with the handle and can synchronously rotate under the drive of the handle so as to shift the pull rope. In some embodiments, the throttle linkage further comprises: The mounting bracket comprises a mounting top plate, a mounting bottom plate and a connecting vertical plate, wherein the connecting vertical plate is connected between the mounting top plate and the mounting bottom plate, a mounting space is formed between the connecting vertical plate and the mounting top plate and between the mounting bottom plate, and the pull rope and the shifting wheel are arranged in the mounting space. In some embodiments, the mounting bracket further comprises a connecting shaft connected between the mounting top plate and the mounting bottom plate; the steering trigger assembly further comprises a transmission part, the thumb wheel and the handle are connected with the transmission part, the transmission part is connected to the connecting shaft, the steering trigger assemblies pass through the transmission part and are arranged at intervals on the connecting shaft, the transmission part can rotate around the connecting shaft, and the transmission part is used for enabling the thumb wheel and the handle to rotate synchronously. In some embodiments, a weigh