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Telescopic slewing fork of crawler crane and crawler crane

A crawler crane, telescopic technology, applied in the direction of cranes, mechanical equipment, pole connection, etc., can solve the problems of bumping forks, difficulty in exiting the central rotary body, and damage to the forks, and achieve the effect of preventing bumps.

Active Publication Date: 2015-08-19
XCMG CONSTR MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the first plan uses a large-tonnage crane for separate transportation, it will cause the weight of the single-piece transportation to be too heavy
In the second scheme, the central gyratory body is installed on the slewing support connecting plate, and this position is full of connecting plate mounting pin shaft oil cylinders, which makes it difficult to get out of the central gyrating body and difficult to arrange the pipelines of the central gyrating body. The height of the ground is very high, which makes it inconvenient for construction personnel to connect and maintain the pipelines when getting on and off the car, disassembling and maintaining them
Because there is a certain distance between the turntable and the central revolving body, the shift fork needs to be long enough to be inserted into the fork seat of the center revolving body when working, but part of the long enough shift fork will be outside the turntable during transportation, so when transporting In the state, it will bump the fork, causing damage to the fork

Method used

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  • Telescopic slewing fork of crawler crane and crawler crane
  • Telescopic slewing fork of crawler crane and crawler crane
  • Telescopic slewing fork of crawler crane and crawler crane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] like Figure 1-3 As shown, a crawler crane telescopic rotary fork 1, the fork 1 includes a fork bottom section 2 with a mounting seat 5 arranged in sequence, a fork middle section 3 and a fork top section 4, The middle section 3 of the shift fork is telescopically arranged in the inner cavity of the bottom section 2 of the shift fork, the top section 4 of the shift fork is telescopically arranged in the inner cavity of the middle section 3 of the shift fork, and the bottom section 2 of the shift fork has a first slide for the bolt 6 to slide Slot 8, the rear end of the middle section 3 of the shift fork has the first threaded hole 9 for the mounting bolt 6, the front end of the first threaded hole 9 of the middle section 3 of the shift fork has the second chute 10 for the bolt 6 to slide, the top of the shift fork The rear end of the section 4 has a second threaded hole 11 for the mounting bolt 6 .

[0041] In this embodiment, the bolts in the first threaded hole 9 and...

Embodiment 2

[0059] like Figure 4 As shown, a crawler crane telescopic rotary fork 1, the fork 1 includes a fork bottom section 2 with a mounting seat 5 arranged in sequence, two fork middle sections 3 and a fork top section 4, The direction of the 2-section shift fork middle section from the shift fork bottom section to the shift fork top section is used as a reference, and the 2-section shift fork middle section is distinguished by the first shift fork middle section and the second shift fork middle section respectively, and the first shift fork middle section It can be telescopically arranged in the inner cavity of the bottom section 2 of the shift fork, the second middle section of the shift fork can be arranged telescopically in the inner cavity of the first middle section of the shift fork, and the top section 4 of the shift fork can be arranged telescopically in the inner cavity of the second middle section of the shift fork Among them, the bottom section 2 of the shift fork has a ...

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PUM

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Abstract

The invention relates to a crawler crane retractable revolved poking fork and a crawler crane. The poking fork comprises a poking fork bottom section with a mounting seat, a poking fork middle section and a poking fork top section all arranged in sequence, wherein the poking fork middle section is arranged in an inner cavity of the poking fork bottom section in a retractable manner; the poking fork top section is arranged in an inner cavity of the poking fork middle section in a retractable manner; a first sliding slot for allowing a bolt to slide is formed in the poking fork bottom section; a first threaded hole for mounting the bolt is formed in the tail end of the poking fork middle section; a second sliding slot for allowing another bolt to slide is formed in the front end of the first threaded hole of the poking fork middle section; a second threaded hole for mounting the bolt is formed in the tail end of the poking fork top section. According to the crawler crane retractable revolved poking fork, provided by the invention, when an upper vehicle and a lower vehicle are used for transporting independently, the poking fork retracts into a rotary table to avoid being bumped; when the upper vehicle and the lower vehicle are assembled, the poking fork stretches and is inserted into a poking fork seat of a central revolving body of the lower vehicle, so that the revolution of the rotary table can be realized, the central revolving body can revolve with the upper vehicle synchronously, and accordingly the communication of liquid paths and circuits of the upper vehicle and the lower vehicle is realized.

Description

technical field [0001] The invention relates to the field of construction machinery, in particular to a telescopic rotary shift fork of a crawler crane and a crawler crane provided with the shift fork. Background technique [0002] The crawler crane is a crane with a lattice boom structure using a crawler chassis. The turntable is a platform device used to place the power system and hydraulic transmission system on the crawler crane. It is usually located in the middle of the vehicle and is a key load-bearing component used to connect the vehicle on and off. The slewing support is a slewing mechanism that can transmit axial force, radial force and moment loaded on the slewing plane. A shift fork is a mechanical device that can achieve a certain function by turning a paddle. The central rotary body is a device that can realize the connection of hydraulic pressure or electric current from the fixed interface to the rotating interface. [0003] Due to the large size of the m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C23/84F16B7/14
Inventor 李聪侯文礼丁美莲程雪
Owner XCMG CONSTR MACHINERY