CN202243749U

CN202243749U - Crawler-type telescopic chassis

Info

Publication number: CN202243749U
Application number: CN2011202770597U
Authority: CN
Inventors: 赵锡鹏; 杨荣海
Original assignee: Beijing Sany Heavy Machinery Co Ltd
Current assignee: Beijing Sany Heavy Machinery Co Ltd; Sany Heavy Machinery Ltd
Priority date: 2011-08-01
Filing date: 2011-08-01
Publication date: 2012-05-30
Anticipated expiration: 2021-08-01

Abstract

The utility model relates to a chassis of a crawler, and aims to provide a crawler-type telescopic chassis which is convenient to mount, not easy to damage, low in gravity center, and convenient to maintain. The crawler-type telescopic chassis comprises two opposite crawler frames and an H-shaped base girder; two square holes are formed on each crawler frame; an outer cross beam perpendicular to the crawler frames is fixedly connected in each square hole; outer slide plates parallel to the center lines of the outer cross beams are fixedly arranged on the inside walls of four outer cross beams; four inner cross beams parallel to one another are arranged on the H-shaped base girder; an inner slide plate parallel to the center line of the inner cross beam is fixedly arranged on the outside wall of each inner cross beam; and the four inner cross beams are respectively and correspondingly inserted into the four outer cross beams; at least one hydrocylinder perpendicular to the crawler frames is arranged between the H-shaped base girder and the crawler frame; and two ends of the hydrocylinder are respectively connected with the crawler frames and the H-shaped base girder through an oil cylinder seat.

Description

The caterpillar telescopic chassis

Technical field

The utility model relates to a kind of chassis of continuously tracked vehicle, particularly relates to the adjustable flexible chassis of width between a kind of crawler belt.

Background technology

The crawler type piling machinery is a kind of efficient pouring pile hole equipment, is widely used in foundation pile foundation construction engineerings such as skyscraper, large bridge engineering, water conservancy construction, is fit to the drilling construction machinery of multiple stratal configuration.The caterpillar chassis that is wherein adopted mainly is used for accomplishing walking, rotation and the load-bearing work of complete machine.At present; There is a kind of flexible chassis in the middle of the disclosed prior art; Like Fig. 1 and shown in Figure 6, this flexible chassis comprises a H type bottom girder 2 ' and two track frames 1 ' that lay respectively at H type bottom girder 2 ' both sides, offers two square holes on each track frame 1 '; Be welded with an outer crossbeam 3 ' vertical in each square hole, be welded with outer slide plate 9 ' on the outer crossbeam 3 ' madial wall with track frame 1 '.As shown in Figure 3, H type bottom girder 2 ' comprises four interior crossbeams 4 ' that are parallel to each other, and is welded with inner slider 10 ' on the lateral wall of interior crossbeam 4 '.Like Fig. 4 and shown in Figure 5; The inner of outer crossbeam 3 ' outer end and interior crossbeam 4 ' is welded with oil cylinder seat 6 ' respectively; As depicted in figs. 1 and 2; Article four, interior crossbeam 4 ' is corresponding respectively to be inserted in four outer crossbeams 3 ', and in every interior crossbeam 4 ' installation hydraulic ram 5 ', the two ends of hydraulic ram 5 ' are connected with oil cylinder seat 6 ' on the outer crossbeam 3 ' with interior crossbeam 4 ' respectively.Through stretching of modulated pressure oil cylinder 5 ', can change spacing between two track frames 1 ', make the crawler type piling machinery more stable in work progress, more convenient in transportation and driving process.But also there was following shortcoming in crossbeam with the flexible chassis of outer crossbeam in-to-in in this hydraulic ram was installed in: one, the installation of the outer slide plate of influence; Two, under the track frame antagonistic force, can produce angular force, cause the local infantile failure of inside and outside slide plate; Three, interior crossbeam is inner higher for the hollow center of gravity on chassis that makes, and is unfavorable for the stable of whole crawler type piling machinery; Four, be not easy to hydraulic ram is keeped in repair.

The utility model content

The technical matters that the utility model will solve provides and a kind ofly convenient installs, not fragile, center of gravity is low, the caterpillar telescopic chassis being convenient to keep in repair.

The utility model caterpillar telescopic chassis; Comprise two track frames that are oppositely arranged and H type bottom girder; Offer two square holes on said each track frame; Said each square hole internal fixation is connected with the outer crossbeam perpendicular with track frame, is set with the outer slide plate parallel with outer crossbeam line of centers on the madial wall of four said outer crossbeams, has four interior crossbeams that are parallel to each other on the said H type bottom girder; Be set with and the parallel inner slider of interior crossbeam line of centers on the lateral wall of every said interior crossbeam; Article four, interior crossbeam is corresponding respectively to be inserted in four outer crossbeams, is provided with at least one and the perpendicular hydraulic ram of track frame between wherein said H type bottom girder and each track frame, and the two ends of said hydraulic ram are connected with H type bottom girder with track frame through oil cylinder seat respectively.

The utility model caterpillar telescopic chassis; Be set with dividing plate between the crossbeam outside wherein said on same track frame two; Offer on the said dividing plate and the corresponding through hole of hydraulic ram, said through hole is provided with orienting sleeve, and said hydraulic ram is arranged in the orienting sleeve.

The utility model caterpillar telescopic chassis, wherein said interior crossbeam is the osed top case structure, its inside is filled with mass.

The utility model caterpillar telescopic chassis, wherein said outer crossbeam is a C shaped steel.

It is outside that the utility model caterpillar telescopic chassis difference from prior art is that the hydraulic ram in the utility model caterpillar telescopic chassis is arranged on outer crossbeam; Space in the outer crossbeam is increased; Be convenient to the installation of outer slide plate; Improve the setting accuracy of outer slide plate, reduced the wearing and tearing between the inside and outside slide plate; Simultaneously, mass can be filled in interior crossbeam inside, reduces the chassis center of gravity, improves whole vehicle stability.

Be described further below in conjunction with the caterpillar telescopic chassis of accompanying drawing the utility model.

Description of drawings

Fig. 1 is the front view on prior art caterpillar telescopic chassis;

Fig. 2 is the cutaway view of A-A direction among Fig. 1;

Fig. 3 is the front view of H type bottom girder in the prior art caterpillar telescopic chassis;

Fig. 4 is the birds-eye view of H type bottom girder in the prior art caterpillar telescopic chassis;

Fig. 5 is the birds-eye view of track frame in the prior art caterpillar telescopic chassis;

Fig. 6 is the cutaway view of B-B direction among Fig. 5;

Fig. 7 is the front view on the utility model caterpillar telescopic chassis;

Fig. 8 is the cutaway view of C-C direction among Fig. 7.

The specific embodiment

Like Fig. 7 and shown in Figure 8; The utility model caterpillar telescopic chassis comprises two track frames that are oppositely arranged 1 and H type bottom girder 2; Offer two square holes on each track frame 1; Each square hole internal fixation is connected with the outer crossbeam 3 perpendicular with track frame 1, and outer crossbeam 3 is a C shaped steel, is set with on the madial wall of four outer crossbeams 3 and the parallel outer slide plate of outer crossbeam 3 line of centerss.Have four interior crossbeams 4 that are parallel to each other on the H type bottom girder 2, interior crossbeam 4 is the osed top case structure, and its inside is filled with mass.Be set with and the parallel inner slider of interior crossbeam 4 line of centerss four corresponding respectively insertions in four outer crossbeams 3 of interior crossbeam 4 on the lateral wall of every interior crossbeam 4.Be provided with between H type bottom girder 2 and each track frame 1 two with the perpendicular hydraulic ram 5 of track frame 1, the two ends of hydraulic ram 5 are connected with H type bottom girder 2 with track frame 1 through oil cylinder seat 6 respectively.Be set with dividing plate 7 between the crossbeam 3 outside two on same track frame 1, offer on the dividing plate 7 and hydraulic ram 5 corresponding two through holes, each through hole is provided with orienting sleeve 8, and hydraulic ram 5 is arranged in the orienting sleeve 8.Through the spacing between two track frames 1 of flexible adjustment of modulated pressure oil cylinder 5.

Above-described embodiment describes the preferred implementation of the utility model; Be not that scope to the utility model limits; Under the prerequisite that does not break away from the utility model design spirit; Various distortion and improvement that those of ordinary skills make the technical scheme of the utility model all should fall in the definite protection domain of the utility model claims.

Claims

1. caterpillar telescopic chassis; Comprise two track frames that are oppositely arranged (1) and H type bottom girder (2); Offer two square holes on said each track frame (1); Said each square hole internal fixation is connected with and the perpendicular outer crossbeam (3) of track frame (1); Article four, be set with on the madial wall of said outer crossbeam (3) and the parallel outer slide plate of outer crossbeam (3) line of centers; Have four interior crossbeams (4) that are parallel to each other on the said H type bottom girder (2), every is set with and the parallel inner slider of interior crossbeam (4) line of centers on the lateral wall of crossbeam (4) in said, and four interior crossbeams (4) are corresponding respectively to be inserted in four outer crossbeams (3); It is characterized in that: be provided with at least one and the perpendicular hydraulic ram (5) of track frame (1) between said H type bottom girder (2) and each track frame (1), the two ends of said hydraulic ram (5) are connected with H type bottom girder (2) with track frame (1) through oil cylinder seat (6) respectively.

2. caterpillar telescopic according to claim 1 chassis; It is characterized in that: be set with dividing plate (7) between said two the outer crossbeams (3) that are positioned on the same track frame (1); Offer on the said dividing plate (7) and the corresponding through hole of hydraulic ram (5); Said through hole is provided with orienting sleeve (8), and said hydraulic ram (5) is arranged in the orienting sleeve (8).

3. caterpillar telescopic according to claim 2 chassis is characterized in that: crossbeam (4) is the osed top case structure in said, and its inside is filled with mass.

4. caterpillar telescopic according to claim 3 chassis is characterized in that: said outer crossbeam (3) is a C shaped steel.