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Supporting leg reinforcing arm and engineering machinery

A technology for construction machinery and strengthening arms, which is applied in the processing of building materials, construction, vehicle maintenance, etc. The problems such as large accumulated clearance of legs can avoid mutual interference, compact and reliable structure, stable strength and rigidity.

Active Publication Date: 2015-07-08
SANY AUTOMOBILE MFG CO LTD
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0006] 1) The vibration of the boom will be transmitted to the outriggers, and the multi-section boom outriggers are easy to transmit vibration due to the large cumulative gap, which will have an adverse effect on the working stability of the vehicle; the vibration will also reduce the boom and outriggers of the concrete pump truck. fatigue strength;
[0007] 2) Due to space constraints, the structure of the outriggers cannot be designed to be very thick, so the rigid design of the outriggers is also limited

Method used

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  • Supporting leg reinforcing arm and engineering machinery
  • Supporting leg reinforcing arm and engineering machinery
  • Supporting leg reinforcing arm and engineering machinery

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Embodiment Construction

[0028] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0029] figure 2 and image 3 Shown is a schematic structural view of a concrete pump truck according to an embodiment of the present invention. The outrigger arm 2 of the concrete pump truck is provided with a leg reinforcement arm 1, which is used to strengthen the outrigger arm 2 of the concrete pump truck, and the outrigger arm 2 is hinged with the car body 5 of the concrete pump truck At hinge point A, the outrigger arm 2 is preferably hinged on the fixed turret of the concrete pump truck.

[0030] One end of the outrigger reinforcement arm 1 is connected with the vehicle body 5 , and the other end is connected with the outrigger arm 2 at the connection point B. The other end of the leg ...

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Abstract

The invention discloses a supporting leg reinforcing arm and engineering machinery. The supporting leg reinforcing arm is used for reinforcing a supporting leg arm of the engineering machinery, the supporting leg arm and a car of the engineering machinery are hinged to a hinged point, one end of the supporting leg reinforcing arm is connected with the car, the other end of the supporting leg reinforcing arm and the supporting leg arm are connected to a connection point, the supporting leg reinforcing arm can stretch and move relative to the car and is of an arc-shaped structure, and the circular arc radius of the arc-shaped structure is equal to the distance between the hinged point and the connection point. The supporting leg reinforcing arm has the advantages of high strength and rigidity, compact structure, fine vibration and impact resistance and the like, and is particularly applicable to supporting leg arms with multi-arm structures.

Description

technical field [0001] The present invention mainly relates to the field of engineering machinery, in particular to a leg reinforcing arm and a construction machine including the leg reinforcing arm. Background technique [0002] At present, the outriggers of engineering machinery such as concrete pump trucks are composed of two front outriggers and two rear outriggers fixed or hinged to a fixed turret. Each leg is mainly composed of a leg arm and a supporting leg. Such as figure 1 As shown, the concrete pump truck is provided with a front outrigger arm 10' and a rear outrigger arm 20'. And supported on the foundation, the weight of the concrete pump truck is borne by four outriggers. [0003] As the concrete pump truck arm frame is designed to be longer and longer, in order to ensure the stability during work, the length of the front outrigger arm 10' and the rear outrigger arm 20' is also longer and longer. In general, the two front outrigger arms 10' are designed as a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60S9/02E04G21/02
Inventor 易小刚郭承志罗志坚
Owner SANY AUTOMOBILE MFG CO LTD
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