Engineering machinery and balance weight locking device

A technology for locking devices and engineering machinery, applied to cranes and other directions, can solve problems such as waste of manpower and inconvenience

Inactive Publication Date: 2010-02-03
SANY AUTOMOBILE MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] It can be seen that the structure of the mechanical bolt-type locking device is very simple and can lock the balance weight well. However, when locking the balance weight, it is necessary to manually insert the horizontal locking pin 2' into the horizontal positioning hole 3' of the vertical plate 5' After completing the locking of the balance weight, when the balance weight is lowered, it is necessary to manually pull the horizontal locking pin 2' out of the horizontal positioning hole 3', which wastes a certain amount of manpower; There are horizontal locking pins 2' and vertical plates 5', so both the locking process and the unlocking process need to be manually operated on both sides, which is very inconvenient

Method used

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  • Engineering machinery and balance weight locking device
  • Engineering machinery and balance weight locking device
  • Engineering machinery and balance weight locking device

Examples

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Embodiment Construction

[0028] The core of the present invention is to provide a counterweight locking device for engineering machinery. The counterweight locking device can lock both sides of the counterweight simultaneously on the basis of reliably locking the counterweight. Another core of the present invention is to provide a construction machine including the above-mentioned counterweight locking device.

[0029] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0030] Please refer to figure 2 and image 3 , figure 2 It is a schematic front view of a specific embodiment of the counterweight locking device provided by the present invention, image 3 It is a schematic top view of a specific embodiment of the counterweight locking device provided by the present invention.

[0031] In a specific embodimen...

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Abstract

The invention discloses a balance weight locking device for engineering machinery. The engineering machinery comprises a balance weight lifting base provided with a lift opening at the top; the balance weight locking device comprises a rocker arm (3) hinged on a rotary table (7) of the engineering machinery through a pin shaft (4); two end parts of the rocker arm (3) are respectively hinged with push rods (2); the tail ends of the two push rods (2) are respectively connected with locking components; and the rocker arm (3) rotates around the pin shaft (4) under the action of a power component to drive the two locking components to insert and separate from the lift opening. The invention also discloses the engineering machinery comprising the balance weight locking device. The engineering machinery and the balance weight locking device ensure that both sides of a balance weight are locked on the basis of reliably locking the balance weight.

Description

technical field [0001] The invention relates to the technical field of construction machinery, in particular to a balancing weight locking device for construction machinery. In addition, the present invention also relates to a construction machine comprising the above-mentioned balance weight locking device. Background technique [0002] With the rapid development of my country's economic construction, the market demand for large-tonnage cranes is increasing. [0003] In the prior art, in order to ensure the stability of large-tonnage cranes when lifting heavy objects, a balance weight is generally installed on the crane; at the same time, in order to prevent the balance weight from sinking and ensure the safety of the crane when lifting heavy objects, a balance weight is also installed on the crane. Balance weight locking device. [0004] At present, the balance weight mechanical locking device is the most simple and reliable device for locking the balance weight. [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C23/72B66C23/88
CPCB66C23/74
Inventor 李涛冉隆强刘树林
Owner SANY AUTOMOBILE MFG CO LTD
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