CN111232073B - Engineering machine tool rises and draws device bearing structure and engineering vehicle - Google Patents
Engineering machine tool rises and draws device bearing structure and engineering vehicle Download PDFInfo
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- CN111232073B CN111232073B CN202010110702.0A CN202010110702A CN111232073B CN 111232073 B CN111232073 B CN 111232073B CN 202010110702 A CN202010110702 A CN 202010110702A CN 111232073 B CN111232073 B CN 111232073B
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- supporting structure
- tensioning
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- oil cylinder
- supporting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/08—Endless track units; Parts thereof
- B62D55/30—Track-tensioning means
Abstract
The invention discloses a supporting structure of a tensioning device of engineering machinery and an engineering vehicle. The guide wheel supporting structure is used for supporting the guide wheels to slide horizontally; the tensioning spring supporting structure is used for supporting the tensioning spring to horizontally slide; the tensioning oil cylinder supporting structure is used for fixing the tensioning oil cylinder. The invention not only reduces the weight of the structural member of the walking system, but also ensures the integral strength of the structural member and improves the reliability and durability of the product.
Description
Technical Field
The invention relates to a supporting structure of an engineering machinery expanding and guiding device, and relates to the field of engineering machinery.
Background
In order to ensure the stability and reliability of the engineering machinery, especially large crawler-type traveling engineering machinery equipment, a vehicle chassis traveling system is generally provided with a buffer system. The buffer system is mainly a tension assembly buffer system, namely a buffer system formed by matching a guide wheel, a tension spring and a tension oil cylinder.
The tension spring and the tension oil cylinder are called as a tension device, the tension spring has enough pretightening force, when the crawler belt generates larger resistance force during traveling, the guide wheel is forced to move towards the driving wheel, and the spring is compressed to play roles of buffering and protecting. The tensioning oil cylinder adjusts the tension degree of the crawler belt by injecting butter into the cavity. The guide wheel is connected with the tensioning device, and can slide along the corresponding track under the buffer action of the tensioning device so as to change the wheel track, ensure the convenient disassembly and assembly of the crawler, reduce the impact and avoid derailment of the caterpillar track.
When the external impact force is far greater than the pretightening force of the spring, the tension spring can be compressed and buffered to impact the supporting structure of the buffering system, so that the supporting structure of the buffering system is required to have higher strength and higher reliability, the service life of the walking system is prolonged, and the abrasion of chassis parts is reduced.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a supporting structure of an engineering machinery expanding and guiding device, which provides reliable structural support for a buffer device of a crawler-type engineering machinery walking system, has strong bearing capacity and is convenient for the disassembly and the assembly of the buffer device.
In order to achieve the purpose, the invention provides the following technical scheme:
a supporting structure of a tensioning device of engineering machinery comprises:
the guide wheel supporting structure is positioned at the front end of the expanding and guiding device supporting structure and used for supporting the guide wheels to horizontally slide;
the tensioning spring supporting structure is positioned in the middle section of the tensioning device supporting structure and is used for supporting the tensioning spring to horizontally slide;
the tensioning oil cylinder supporting structure is positioned at the rear end of the tensioning device supporting structure and used for fixing the tensioning oil cylinder;
after the piston of the tensioning oil cylinder extends out, the front ends of the guide wheel and the tensioning spring are pushed to move forwards in the guide wheel supporting structure, and the rear end of the tensioning spring slides forwards on the tensioning spring supporting structure so as to adjust the crawler to be in a normal working state;
when the chassis of the vehicle is impacted, the guide wheel is forced to move towards the driving wheel, the guide wheel and the front end of the tension spring move backwards on the guide wheel supporting structure, the piston of the tension oil cylinder abuts against the rear end of the tension spring, and the rear end of the tension spring is kept still, so that the buffer compression of the spring is realized.
Further, the guide wheel support structure is a slide rail type structure, including:
the first vertical plate is arranged on the longitudinal beam bottom plate;
the upper sliding rail is arranged at the upper part of the first vertical plate;
the lower sliding rail is arranged at the bottom end of the first vertical plate and is connected with the longitudinal beam bottom plate;
wherein, the upper and lower slide rails jointly form a track for the guide wheel to slide and a front track for the tension spring to slide.
Furthermore, threaded holes are formed in supports on two sides of the guide wheel, through holes are formed in two lugs of the support at the front end of the tension spring, and the front end of the tension spring penetrates through the vertical plate and then is connected with the front end of the tension spring through a bolt.
Further, the upper slide rail is composed of two groups of rib plate frames which are symmetrically arranged, and each group of rib plate frame is formed by welding a rib plate I and a rib plate II in a 90-degree mode; the lower slide rail is composed of two guide blocks which are symmetrically arranged.
Further, the tension spring supporting structure comprises at least two second vertical plates, angle steel and a supporting plate; the second vertical plates are arranged on the longitudinal beam bottom plate at intervals; the supporting plate is arranged on the longitudinal beam bottom plate and is positioned at the tail end of the tension spring supporting structure; two angle steel symmetrical inlays and installs in a plurality of second risers and be close to longeron bottom plate department, and the angle steel end links to each other with the backup pad of installing on the longeron bottom plate, and the angle steel is as the tight spring rear end slip track that rises, and its length spans whole tight spring bearing structure that rises.
Furthermore, the tension spring supporting structure also comprises an upper guide plate; the two upper guide plates are symmetrically embedded at the upper part of the second vertical plate positioned at the rearmost end, and the tail ends of the upper guide plates are connected with the supporting plate; the tension spring is positioned between the two angle steels and the two upper guide plates, so that the freedom degree of the tension spring in up-and-down movement is limited.
Further, the tensioning oil cylinder supporting structure comprises a supporting plate and a large vertical plate which are shared with the tensioning spring supporting structure; the front end of the tensioning oil cylinder is placed on the concave hole of the supporting plate, and the piston extends out to prop against the rear end of the tensioning spring; the large vertical plate is arranged on the longitudinal beam bottom plate and is positioned at the tail end of the supporting structure of the tensioning device, the large vertical plate is provided with a through hole, the rear end of the tensioning oil cylinder is provided with a threaded hole, and the tensioning oil cylinder is fixed on the large vertical plate through a bolt.
Furthermore, the tensioning oil cylinder supporting structure also comprises a stop block; the stop block is arranged on the large vertical plate and close to the bottom plate of the longitudinal beam, supports the tensioning oil cylinder on one hand, and plays a limiting role on the other hand, so that the tensioning oil cylinder is prevented from rotating in the working process.
Furthermore, a reinforcing plate is welded on the rear side face of the large vertical plate to improve the structural strength.
The engineering vehicle comprises a crawler belt, wherein the crawler belt is provided with the expansion device supporting structure.
The invention has the beneficial effects that:
according to the working principle of the crawler-type engineering machinery walking system buffer device, the framework is used for constructing the supporting structure of the whole buffer system, all parts of the expanding and guiding device are respectively supported, the layout of the supporting structure is reasonably optimized, and the local structure reinforcement is carried out on the region with larger impact, so that the weight of the walking system structural part is reduced, the overall strength of the structural part is guaranteed, and the reliability and durability of the use of the product are improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention and not to limit the invention. The present invention will be described in detail below with reference to the accompanying drawings and examples.
FIG. 1 is an assembly view of a support structure of the expanding device of the present invention;
FIG. 2 is a perspective view of the supporting structure of the expanding device of the present invention;
FIG. 3 is a front view of the supporting structure of the expanding device of the present invention;
fig. 4 is a left side view of the supporting structure of the expanding device of the present invention.
In the figure: 1. the device comprises a supporting structure of a tensioning device, 2, a guide wheel, 3, a tensioning spring, 4, a tensioning oil cylinder, 101, a guide block, 102, rib plates I and 103, rib plates II and 104, vertical plates I and 105, vertical plates II and 106, angle steel, 107, vertical plates III and 108, reinforcing ribs, 109, an upper guide plate, 110, a supporting plate, 111, a stop block, 112, a large vertical plate, 113 and a reinforcing plate.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1, an engineering machinery expanding and guiding device supporting structure is divided into three parts, wherein the front end of the expanding and guiding device supporting structure is a guide wheel supporting structure, the middle section of the expanding and guiding device supporting structure is a tension spring supporting structure, and the rear end of the expanding and guiding device supporting structure is a tension cylinder supporting structure, and the expanding and guiding device supporting structure and the tension spring supporting structure are symmetrical structures. Wherein, the guide wheel supporting structure is used for supporting the guide wheel 2 to slide horizontally; the tension spring supporting structure is used for supporting the tension spring 3 to horizontally slide; the tensioning oil cylinder supporting structure is used for fixing the tensioning oil cylinder 4.
The following is a further description of the above-described guide wheel support structure:
as shown in fig. 2, 3 and 4, the guide wheel supporting structure is a slide rail type structure, the upper slide rail is formed by welding rib plates i 102 and rib plates ii 103 in a 90-degree manner, tail ends of the two rib plates are welded on a vertical plate i 104, the lower slide rail is an independent guide block 101, and tail ends of the guide block 101 are also welded on the vertical plate i 104, so that the upper slide rail and the lower slide rail jointly form a guide rail for the guide wheel 2 to slide and a front rail for the tension spring 3 to slide. As can be seen from fig. 1, the brackets at both sides of the guide wheel 2 are provided with threaded holes, the two ears of the bracket at the front end of the tension spring 3 are provided with through holes, and the guide wheel 2 is connected with the front end of the tension spring 3 through bolts, so that the brackets at both sides of the guide wheel 2 and the two ears of the bracket at the front end of the tension spring 3 can move back and forth in a slide way formed by an upper slide rail and a lower slide rail.
The above is a detailed description of the specific implementation of the present invention, but the present invention is not limited to the above-described specific embodiments, which are only examples, and any equivalent modifications and substitutions of the upper and lower sliding rail structures are within the scope of the present invention for those skilled in the art.
With continued reference to fig. 2, 3, and 4, the tension spring support structure is composed of an upright plate ii 105, an angle steel 106, an upright plate iii 107, and a support plate 110, where the angle steel 106 is used as a main rail for the rear end of the tension spring 3 to slide, and the length of the angle steel spans the entire tension spring support structure. Specifically, two angle steels 106 are welded on the vertical plate II 105 and the vertical plate III 107 in an embedded manner, and the tail ends of the angle steels are welded on the supporting plate 110. The tail end of the tension spring supporting structure is a boundary of the tension spring 3 and the tension oil cylinder 4, and the tension oil cylinder 4 is supported against the tail end of the tension spring 3 through a piston and is not rigidly connected.
Further scheme: in order to ensure that the tension spring 3 does not have position deviation in the working process, an enhanced design is performed at the position, and an upper guide plate 109 and a reinforcing rib 108 are additionally arranged at the tail end of the track to limit the freedom degree of the tension spring 3 in up-and-down movement and ensure the working stability of the tension spring 3.
It should be noted that, in the above embodiment, two vertical plates, i.e., the vertical plate ii and the vertical plate iii, are used, and of course, three vertical plates may be used in the actual design. Therefore, two vertical plates are not limited.
With continued reference to fig. 2, 3, and 4, the tensioning cylinder support structure is composed of a support plate 110, a stopper 111, a large vertical plate 112, and a reinforcing plate 113, the support plate 110 has a concave hole for supporting the tensioning cylinder 4, and the stopper 111 is welded on the large vertical plate 112. The front end of the tensioning oil cylinder 4 is placed on the concave hole of the supporting plate 110, the piston extends out to prop against the rear end of the tensioning spring 3, and the rear end of the tensioning oil cylinder 4 is placed on the stop block 111. The stop block 111 supports the tensioning oil cylinder 4 on one hand, and plays a limiting role on the other hand, so that the tensioning oil cylinder 4 is prevented from rotating in the working process. The rear end of the tensioning oil cylinder 4 is provided with a threaded hole, the large vertical plate 112 is provided with a through hole, and the tensioning oil cylinder 4 is fixed on the large vertical plate 112 through a bolt.
Further scheme: the large vertical plate 112 is located at the extreme end of the whole expanding and guiding device supporting structure and bears the largest impact force, so the reinforcing plate 113 is welded behind the large vertical plate 112 to improve the structural strength.
The guide wheel supporting structure, the tensioning spring supporting structure and the tensioning oil cylinder supporting structure are connected end to form a whole supporting structure of the tensioning device, and the whole supporting structure is welded inside the longitudinal beam and is used for supporting the whole longitudinal beam.
Before the machine normally works, grease is generally required to be filled into the tensioning oil cylinder 4, the crawler belt is adjusted to a normal working state, at the moment, the piston of the tensioning oil cylinder 4 slowly extends out, the front ends of the guide wheel 2 and the tensioning spring 3 move forwards in the slide way of the guide wheel supporting structure, and the rear end of the tensioning spring 3 slides forwards on the angle steel 106.
When the chassis receives great impact, the impact force is transmitted to the guide wheel 2 through the track, force the guide wheel 2 to move to the drive wheel direction, when the impact force is far greater than the tight spring pretightning force that rises, tight spring 3 that rises is compelled to compress, guide wheel 2 and tight spring 3 front end that rises move backward in the slide of guide wheel bearing structure, because of tight hydro-cylinder 4 piston top that rises is in tight spring 3 rear end that rises, tight spring 3 rear end that rises keeps motionless, the buffer compression of spring has just so been realized, thereby realize among the crawler-type engineering machine tool traveling system buffer function.
The invention also provides an engineering vehicle which comprises a crawler belt, wherein the crawler belt is internally provided with the expansion device supporting structure.
Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present invention and not to limit the same; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.
Claims (9)
1. The utility model provides an engineering machine tool rises and draws device bearing structure which characterized in that includes:
the guide wheel supporting structure is positioned at the front end of the expanding and guiding device supporting structure and used for supporting the guide wheels to horizontally slide;
the tensioning spring supporting structure is positioned in the middle section of the tensioning device supporting structure and is used for supporting the tensioning spring to horizontally slide; the vertical plate comprises at least two second vertical plates, angle steel and a supporting plate; the second vertical plates are arranged on the longitudinal beam bottom plate at intervals; the supporting plate is arranged on the longitudinal beam bottom plate and is positioned at the tail end of the tension spring supporting structure; two angle steels are symmetrically embedded in the second vertical plates and are close to the longitudinal beam bottom plate, the tail ends of the angle steels are connected with a supporting plate arranged on the longitudinal beam bottom plate, the angle steels are used as sliding rails at the rear ends of the tensioning springs, and the length of the angle steels stretches across the whole tensioning spring supporting structure;
the tensioning oil cylinder supporting structure is positioned at the rear end of the tensioning device supporting structure and used for fixing the tensioning oil cylinder;
after the piston of the tensioning oil cylinder extends out, the front ends of the guide wheel and the tensioning spring are pushed to move forwards in the guide wheel supporting structure, and the rear end of the tensioning spring slides forwards on the tensioning spring supporting structure so as to adjust the crawler to be in a normal working state;
when the chassis of the vehicle is impacted, the guide wheel is forced to move towards the driving wheel, the guide wheel and the front end of the tension spring move backwards on the guide wheel supporting structure, the piston of the tension oil cylinder abuts against the rear end of the tension spring, and the rear end of the tension spring is kept still, so that the buffer compression of the spring is realized.
2. The supporting structure of the expanding and guiding device of the engineering machinery as claimed in claim 1, wherein:
the guide wheel bearing structure is a slide rail type structure, including:
the first vertical plate is arranged on the longitudinal beam bottom plate;
the upper sliding rail is arranged at the upper part of the first vertical plate;
the lower sliding rail is arranged at the bottom end of the first vertical plate and is connected with the longitudinal beam bottom plate;
wherein, the upper and lower slide rails jointly form a track for the guide wheel to slide and a front track for the tension spring to slide.
3. The supporting structure of the expanding and guiding device of the engineering machinery as claimed in claim 2, wherein:
the guide wheel is provided with threaded holes on the supports on the two sides, through holes are formed in two lugs of the support at the front end of the tension spring, and the front end of the tension spring penetrates through the vertical plate and then is connected with the front end of the tension spring through a bolt.
4. The supporting structure of the expanding and guiding device of the engineering machinery as claimed in claim 2, wherein:
the upper slide rail is composed of two groups of rib plate frames which are symmetrically arranged, and each group of rib plate frame is formed by welding a rib plate I and a rib plate II in a 90-degree manner;
the lower slide rail is composed of two guide blocks which are symmetrically arranged.
5. The supporting structure of the expanding and guiding device of the engineering machinery as claimed in claim 1, wherein: the tension spring supporting structure also comprises an upper guide plate;
the two upper guide plates are symmetrically embedded at the upper part of the second vertical plate positioned at the rearmost end, and the tail ends of the upper guide plates are connected with the supporting plate; the tension spring is positioned between the two angle steels and the two upper guide plates, so that the freedom degree of the tension spring in up-and-down movement is limited.
6. The supporting structure of the expanding and guiding device of the engineering machinery as claimed in claim 1, wherein: the tensioning oil cylinder supporting structure comprises a supporting plate and a large vertical plate which are shared with the tensioning spring supporting structure;
the front end of the tensioning oil cylinder is placed on the concave hole of the supporting plate, and the piston extends out to prop against the rear end of the tensioning spring;
the large vertical plate is arranged on the longitudinal beam bottom plate and is positioned at the tail end of the supporting structure of the tensioning device, the large vertical plate is provided with a through hole, the rear end of the tensioning oil cylinder is provided with a threaded hole, and the tensioning oil cylinder is fixed on the large vertical plate through a bolt.
7. The supporting structure of the expanding and guiding device of the engineering machinery as claimed in claim 6, wherein: the tensioning oil cylinder supporting structure also comprises a stop block;
the stop block is arranged on the large vertical plate and close to the bottom plate of the longitudinal beam, supports the tensioning oil cylinder on one hand, and plays a limiting role on the other hand, so that the tensioning oil cylinder is prevented from rotating in the working process.
8. The supporting structure of the expanding and guiding device of the engineering machinery as claimed in claim 6, wherein: the rear side face of the large vertical plate is welded with a reinforcing plate for improving the structural strength.
9. A kind of engineering vehicle, including the track, characterized by:
the crawler is provided with the expanding device support structure of any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010110702.0A CN111232073B (en) | 2020-02-24 | 2020-02-24 | Engineering machine tool rises and draws device bearing structure and engineering vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010110702.0A CN111232073B (en) | 2020-02-24 | 2020-02-24 | Engineering machine tool rises and draws device bearing structure and engineering vehicle |
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| Publication Number | Publication Date |
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| CN111232073A CN111232073A (en) | 2020-06-05 |
| CN111232073B true CN111232073B (en) | 2021-04-23 |
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| CN202010110702.0A Active CN111232073B (en) | 2020-02-24 | 2020-02-24 | Engineering machine tool rises and draws device bearing structure and engineering vehicle |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112211935A (en) * | 2020-09-29 | 2021-01-12 | 新昌县羽林街道全利机械厂 | Supporting device for expansion structure of engineering machinery vehicle |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3647270A (en) * | 1968-11-13 | 1972-03-07 | Orenstein & Koppel Ag | Hydraulic chain-tensioning device, especially for tracklaying vehicles |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62275880A (en) * | 1986-05-26 | 1987-11-30 | Ikutoku Gakuen | Caterpillar vehicle |
| DE4025929C2 (en) * | 1990-08-16 | 1999-07-08 | Intertractor Ag | Clamping device for the idler wheel of tracked vehicles |
| DE102006039731B4 (en) * | 2006-08-24 | 2009-04-23 | Terex Gmbh | Chain tensioner |
| CN201472504U (en) * | 2009-08-03 | 2010-05-19 | 江阴市长龄液压机具厂 | Crawler tension device |
| CN202264833U (en) * | 2011-09-05 | 2012-06-06 | 青岛中瑞重工集团有限公司 | Tensioning mechanism for track assembly of skid loader |
| JP2015020630A (en) * | 2013-07-19 | 2015-02-02 | キャタピラー エス エー アール エル | Crawler buffer |
| CN104527827A (en) * | 2014-12-31 | 2015-04-22 | 中联重机股份有限公司 | Caterpillar band tensioning device for track vehicle and track vehicle |
| CN106741257A (en) * | 2015-11-22 | 2017-05-31 | 杨宴敏 | Loading machine Tensioning structure |
| CN106080821A (en) * | 2016-08-16 | 2016-11-09 | 徐工集团工程机械股份有限公司 | A kind of crawling traction transport vehicle and tensioner thereof |
| CN210011814U (en) * | 2019-04-26 | 2020-02-04 | 济宁市吉华工程机械有限公司 | High-bearing tensioning device for engineering machinery |
| CN110329376A (en) * | 2019-07-26 | 2019-10-15 | 徐州徐工随车起重机有限公司 | From walking crane crawler belt regulating device |
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2020
- 2020-02-24 CN CN202010110702.0A patent/CN111232073B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3647270A (en) * | 1968-11-13 | 1972-03-07 | Orenstein & Koppel Ag | Hydraulic chain-tensioning device, especially for tracklaying vehicles |
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