CN201339679Y

CN201339679Y - Telescopic sleeve type tow chain device with mobile bracket

Info

Publication number: CN201339679Y
Application number: CNU2008200537312U
Authority: CN
Inventors: 刘国良
Original assignee: Hunan Sinoboom Heavy Industry Co Ltd
Current assignee: Hunan Sinoboom Heavy Industry Co Ltd
Priority date: 2008-07-14
Filing date: 2008-07-14
Publication date: 2009-11-04
Anticipated expiration: 2018-07-14

Abstract

The utility model discloses a telescopic sleeve type tow chain with a mobile bracket, which mainly comprises 1. hydraulic and electric pipelines, 2. a tow chain, 3. a sliding bush, 4. a sliding groove, 5. an outer pipe, 6. a supporting frame, 7. a bracket, 8. a supporting frame, 9. an inner pipe, 10. supporting frame, 11. an arm frame I, 12. an arm frame II and 13. an arm frame III. In the design principle, the tow chain device is additionally provided with the sliding bush with roller wheels or sliding blocks for fixing the outer pipe which can slide in the sliding groove through the sliding bush; when the arm frame II and the arm frame III extend forwards synchronously, the distance of the outer pipe fixed on the arm frame II moving in the gliding groove is equal to that of the inner pipe fixed on the arm frame III moving in the outer pipe, the hanging length of the two chain is not changed, so that the stress and supporting form of the tow chain are greatly improved. In the row material selection, the two chain device adopts industrial rectangular aluminum extruded sections to replace original steel plate welding pipes, so that the weight of pipes are reduced, and the process difficulty of pipe welding is decreased.

Description

A kind of telescopic drag chain device of Tape movement carriage

Technical field

The utility model is mainly concerned with a kind of telescopic drag chain device of Tape movement carriage.

Background technique

Aerial lift device often need be transported to hydraulic power, electrical control signal and welder power etc. in the control box on the actuator of jib end and the hurdle of working, particularly for telescopic boom posture aerial lift device by pipeline.All generally adopt towing chain mechanism to solve this type of problem at present, the main structure of existing drag chain is formed and is comprised hydraulic pressure and electric pipeline, drag chain, conduit, bracket, support, first jib, second jib, the 3rd jib (seeing Figure of description 1, accompanying drawing 2).Its working principle shows as hydraulic pressure and electric pipeline and arranges drag chain 2 in by the mode of flexible pipe, through conduit 3 hydraulic power and electric signal is transported to the 3rd jib end again, thus the connection of signal and power about the assurance.When jib protracts, second jib and the same moved further of the 3rd jib, the conduit 3 that is fixed in the 3rd jib drives drag chain 2 along with moving forward.

The major defect of prior art: as can be known by Figure of description 2, when conduit 3 afterbodys move forward above the first jib head, one section of drag chain just begins to lose support, when conduit reaches limit position forward, it is the longest that drag chain is suspended in aerial distance, generally reaches 1/2 of whole jib range.At this moment, the drag chain and the hydraulic pressure of inside and the generation weight of electric pipeline need the intensity of drag chain itself to guarantee, and drag chain hovering length is conditional.The hovering drag chain is because the distortion that gravity causes also is easy to generate the situation of inefficacy.

The model utility content

The technical problems to be solved in the utility model just is: how drag chain and conduit obtain effective support, reduce because the distortion that gravity produces improves the reliability that drag chain uses.

In order to solve the problems of the technologies described above, the solution that the utility model proposes is: a kind of telescopic drag chain device of Tape movement carriage, comprise hydraulic pressure and electric pipeline, drag chain, outer duct and with it suit inner catheter, be installed in be equipped with on bracket on first jib, second jib second support is housed on first support, the 3rd jib, described inner catheter front end is installed on described second support, described outer duct front end is fixed on described second jib, the rear end of described outer duct is fixed with sliding sleeve, and described sliding sleeve is provided with roller or slide block.

Described the first arm has set up chute.

Adopt the telescopic drag chain device of the Tape movement carriage of technique scheme, increased on its design principle by the sliding sleeve of band roller or slide block outer duct has been fixed, outer duct can slide by sliding in the chute, when second jib and the 3rd jib stretch out forward synchronously, being fixed on distance that outer duct on second jib moves in chute equates with the distance that inner catheter on being fixed on the 3rd jib slides in outer duct, how the unsettled length of drag chain does not change, and has improved the stressed and supporting form of drag chain; In the raw material type selecting, the utility model device adopts industrial square type aluminium section bar to substitute former steel plate welding conduit, alleviates conduit weight, reduces conduit welding procedure difficulty.

Compared with prior art, advantage of the present utility model is:

1. adopt industrial square type aluminium section bar conduit to substitute former steel plate welding conduit, alleviate conduit weight, reduce conduit welding procedure difficulty and distortion;

2. increased by the sliding sleeve of band roller or slide block outer duct has been fixed, outer duct can slide by sliding in the chute, when second jib and the 3rd jib stretch out forward synchronously, being fixed on distance that outer duct on second jib moves in chute equates with the distance that inner catheter on being fixed on the 3rd jib slides in outer duct, after outer duct increases a support simultaneously, changed former cantilever means of fixation, the stressed and supporting form of conduit and drag chain has been done very big improving (seeing Fig. 4, Fig. 5)

Description of drawings

Fig. 1 is existing towing chain mechanism structural representation;

Fig. 2 is existing towing chain mechanism work schematic representation;

Fig. 3 is the utility model towing chain mechanism structural representation;

Fig. 4 is the utility model towing chain mechanism work schematic representation:

Fig. 5 is the utility model towing chain mechanism detailed structure view;

Embodiment

Below with reference to accompanying drawing the utility model is described in further details.

Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, after adopting the utility model drag chain device, drag chain is seen Fig. 3 at the jib retraction when putting in place, when jib begins to protract, being fixed on oil cylinder on first jib 11 promotes second jib 12 and travels forward, by synchronization telescope mechanism the 3rd jib 13 is extended synchronously, simultaneously, drive, by the fixing inner catheter 9 same moved further of second support 10 by the fixing outer duct 5 of first support 8, sliding sleeve 3 is fixed on outer duct 5 one ends (as Fig. 3), when jib extended, sliding sleeve 3 moved in chute 4 together, when the jib elongation puts in place, each several part state such as Fig. 4, process is reversible during the jib retraction.As seen, in the jib telescopic process, outer duct 5 obtains the support of sliding sleeve 3 all the time, and like this, the distortion of outer duct can reduce significantly, and the unsettled length of drag chain does not change all the time, has improved the force-bearing situation of the utility model device.

As from the foregoing, after adopting structure of the present utility model, the unsettled length of drag chain and the stroke of jib are irrelevant, drag chain is in all the time and is subjected to holding state, and this can reduce the requirement of strength of drag chain own, reduces cost, eliminate the restriction of unsettled length, and be subjected to holding state because drag chain and outer duct are in all the time, stress is greatly improved, and has improved the reliability of the utility model device.

Claims

1, a kind of telescopic drag chain device of Tape movement carriage, comprise hydraulic pressure and electric pipeline (1), drag chain (2), outer duct (5) and the inner catheter of suit (9) with it, be installed in the bracket (7) on first jib (11), first support (8) is housed on second jib (12), second support (10) is housed on the 3rd jib (13), described inner catheter (9) front end is installed on described second support (10), it is characterized in that: described outer duct (5) front end is fixed on described second jib (12), the rear end of described outer duct (5) is fixed with sliding sleeve (3), and described sliding sleeve (3) is provided with roller or slide block.

2, the telescopic drag chain device of Tape movement carriage according to claim 1, it is characterized in that: described first jib (11) is provided with chute (4).