CN112281973B

CN112281973B - Excavator chassis and excavator

Info

Publication number: CN112281973B
Application number: CN202011217619.XA
Authority: CN
Inventors: 贺建哲; 徐乾秩; 孙传东
Original assignee: Sany Heavy Machinery Ltd
Current assignee: Sany Heavy Machinery Ltd
Priority date: 2020-11-04
Filing date: 2020-11-04
Publication date: 2023-01-10
Anticipated expiration: 2040-11-04
Also published as: CN112281973A

Abstract

The invention provides an excavator chassis and an excavator, and relates to the technical field of excavators. The excavator chassis comprises a driving wheel mounting seat and a walking frame, wherein the driving wheel mounting seat is provided with a first telescopic rod, the walking frame is provided with a track beam, and the first telescopic rod is telescopically inserted into one end of the track beam. The excavator chassis is applied to the excavator, the position of the driving wheel mounting seat relative to the track beam is adjusted to change the length of the excavator track, meanwhile, the contact area between the excavator track and the ground is adjusted, the excavator can work on the ground with soft geology, and the universality of the excavator is improved.

Description

Excavator chassis and excavator

Technical Field

The invention relates to the technical field of excavators, in particular to an excavator chassis and an excavator.

Background

The excavator chassis is used for installing a crawler walking system and supporting the excavator body. The excavator chassis is including walking frame and the track beam who is located walking frame both sides, the track beam is used for installing the drive wheel mount pad, parts such as guide wheel mount pad, in current excavator chassis, the track beam welds with walking frame mutually in its inboard, drive wheel mount pad and guide wheel mount pad welded fastening respectively in the both ends of track beam, thereby make the distance between drive wheel mount pad and the guide wheel mount pad fixed, the drive wheel is installed in the drive wheel mount pad, the guide wheel is installed in the guide wheel mount pad, the track cover is located on drive wheel and the guide wheel, the track is fixed with the area of contact on ground.

Along with excavator track and ground area of contact's increase, the ground connection specific pressure of excavator track can progressively reduce for the excavator can carry out the operation under the operating mode of difference, but the distance between the drive wheel mount pad of present excavator and the guide wheel mount pad is fixed, leads to the area of contact on excavator track and ground to be unable to be adjusted, and the excavator can not carry out the operation on the softer subaerial of geology.

Disclosure of Invention

In view of this, embodiments of the present invention provide an excavator chassis and an excavator, so as to solve the problem in the prior art that the contact area between an excavator track and the ground is not adjustable, so that the excavator cannot perform operations on the ground with soft geology.

In order to achieve the above object, an embodiment of the present invention provides an excavator chassis, which includes a driving wheel mounting seat and a walking frame, wherein the driving wheel mounting seat is provided with a first telescopic rod, the walking frame is provided with a track beam, and the first telescopic rod is telescopically inserted into one end of the track beam.

As a further improvement of the above technical solution:

the excavator chassis further comprises a guide wheel mounting seat, wherein a second telescopic rod is arranged on the guide wheel mounting seat, the length of the second telescopic rod is adjustable, the second telescopic rod is inserted into the other end of the crawler beam, and the second telescopic rod can be fixed relative to the crawler beam.

In the excavator chassis, the track beam is of a hollow structure, the first telescopic rod is inserted into the track beam, and the outer wall of the first telescopic rod is attached to the inner wall of the track beam.

The excavator chassis further comprises a limiting part, the crawler beam is provided with a plurality of first limiting holes, the first telescopic rod is provided with second limiting holes, and when the first telescopic rod is inserted into the crawler beam and the second limiting holes are aligned with the first limiting holes, the limiting part sequentially penetrates through the first limiting holes and the second limiting holes.

In the excavator chassis, furthermore, the second limiting holes are multiple.

The excavator chassis is characterized in that the limiting part comprises a limiting bolt.

In the excavator chassis, the walking frame is provided with a machine body mounting seat for mounting a machine body of the excavator.

In the excavator chassis, the crawler beam is welded and fixed to the walking frame.

In the excavator chassis, the first telescopic rod is welded and fixed on the driving wheel mounting seat.

To achieve the above object, an embodiment of the present invention further provides an excavator, including:

the excavator chassis described above; and

the body is mounted on the excavator chassis.

The invention has the beneficial effects that:

the excavator chassis comprises a driving wheel mounting seat and a walking frame, wherein the driving wheel mounting seat is provided with a first telescopic rod, the walking frame is provided with a track beam, and the first telescopic rod is telescopically inserted into one end of the track beam. The excavator chassis is applied to the excavator, the position of the driving wheel mounting seat relative to the track beam can be adjusted according to different construction environments, the length of the excavator track is changed, the contact area between the excavator track and the ground is adjusted, the excavator can work on the ground with soft geology, and the universality of the excavator is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 illustrates a front view of a drive wheel mount of an excavator chassis of an embodiment of the present invention;

FIG. 2 illustrates a bottom view of a drive wheel mount of an excavator chassis of an embodiment of the present invention;

FIG. 3 illustrates a bottom view of a track beam of an excavator undercarriage of an embodiment of the present invention;

fig. 4 shows a schematic structural view of an excavator chassis of an embodiment of the present invention.

Description of the main element symbols:

100-driving wheel mounting seats;

200-a walking frame; 210-a body mount;

300-a first telescoping rod; 310-a second limiting hole;

400-track beam; 410-a first limiting hole;

500-guide wheel mount;

600-a stop.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Example one

Referring to fig. 1, the present embodiment provides an excavator chassis, which is applied to an excavator and includes a driving wheel mounting base 100 and a walking frame 200.

Specifically, referring to fig. 4, the driving wheel mounting base 100 is provided with a first telescopic rod 300, the walking frame 200 is provided with a track beam 400, the first telescopic rod 300 is inserted into one end of the track beam 400 with adjustable length, and the first telescopic rod 300 can be fixed relative to the track beam 400.

The driving wheel mounting seats 100 are used for mounting driving wheels of the excavator, a first telescopic rod 300 is fixedly mounted at one end of each driving wheel mounting seat 100, a crawler beam 400 is fixedly mounted at two opposite sides of the walking frame 200 respectively, and when the walking frame is used, the first telescopic rods 300 of the two driving wheel mounting seats 100 are inserted into a certain position of the two crawler beams 400 respectively and are fixed with the first telescopic rods 300 and the crawler beams 400.

When the excavator needs to work in a construction environment with hard geology or a small site, the position relation of the first telescopic rods 300 of the two driving wheel mounting seats 100 relative to the crawler beam 400 can be adjusted, so that the distance between the driving wheel mounting seats 100 and the walking frame 200 is shortened, and the site occupied by the excavator during construction is reduced.

When the excavator needs to work in a construction environment with soft geology or a large site, the position relation of the first telescopic rods 300 of the two driving wheel installation seats 100 relative to the crawler beam 400 can be adjusted to prolong the distance between the driving wheel installation seats 100 and the walking frame 200, so that the contact area between a crawler and the ground is increased during excavator construction, the excavator is prevented from sinking during construction, and the construction safety of the excavator is guaranteed.

In some embodiments, a track beam 400 is welded to each of opposite sides of the walking frame 200, and the first telescopic rod 300 is welded to one end of the driving wheel mounting base 100, and when assembled, the first telescopic rod 300 is inserted into and fixed to the track beam 400.

Of course, it is understood that the track beams 400 may be fixedly mounted to the opposite sides of the walking frame 200 in other manners; one end of the first telescopic rod 300 can also be fixedly installed on the driving wheel installation seat 100 in other manners; when assembled, the crawler beam 400 may be further inserted into the first telescopic bar 300 and fixed. Two opposite sides of the walking frame 200 are respectively welded and fixed with a track beam 400, one end of the driving wheel mounting base 100 is welded and fixed with a first telescopic rod 300, and during assembly, the first telescopic rod 300 is inserted into the track beam 400 and fixed. The above is only a preferred embodiment of the present invention, and does not unnecessarily limit the embodiment of the present invention, and the track beams 400 are fixedly installed at opposite sides of the traveling frame 200 in other manners; a first telescopic bar 300 fixedly mounted on the driving wheel mounting seat 100 in other ways; the crawler beam 400 inserted and fixed in the first telescopic rod 300 when assembled is within the scope of the present invention.

Example two

Referring to fig. 4, the present embodiment provides an excavator chassis, which is applied to an excavator, and the excavator chassis provided in the present embodiment is an improvement made on some structures of the excavator chassis provided in the first embodiment, compared with the excavator chassis provided in the first embodiment, the specific improvements are as follows:

in the excavator chassis provided in this embodiment, the excavator chassis further includes a guide wheel mounting seat 500, the guide wheel mounting seat 500 is used for mounting a guide wheel of the excavator, the guide wheel mounting seat 500 is provided with a second telescopic rod, the second telescopic rod is inserted into the other end of the track beam 400 in an adjustable length manner, and the second telescopic rod can be fixed relative to the track beam 400.

The guide wheel mounting seat 500 is used for mounting a guide wheel of an excavator, one end of the guide wheel mounting seat 500 is fixedly provided with a second telescopic rod, two opposite sides of the walking frame 200 are respectively and fixedly provided with a crawler beam 400, when the excavator is used, the first telescopic rods 300 of the two drive wheel mounting seats 100 are respectively inserted into a certain position from one end of the two crawler beams 400, and then the first telescopic rods 300 and the crawler beams 400 are fixed; the second telescopic rods of the two guide wheel mounts 500 are inserted into a certain position from the other ends of the two crawler beams 400, and then the second telescopic rods are fixed to the crawler beams 400.

When the excavator needs to work in a construction environment with hard geology or a small site, the position relation of the second telescopic rods of the two guide wheel installation seats 500 relative to the crawler beam 400 can be adjusted, and the installation positions of the guide wheel installation seats 500 and the driving wheel installation seats 100 can also be adjusted at the same time, so that the relative distance between the guide wheel installation seats 500 and the driving wheel installation seats 100 is shortened, and the site occupied by the excavator during construction is reduced.

When the excavator needs to work in the construction environment with soft geology or large site, the position relation of the second telescopic rods of the two guide wheel installation seats 500 relative to the crawler beam 400 can be adjusted, the installation positions of the guide wheel installation seats 500 and the driving wheel installation seats 100 can also be adjusted at the same time, so that the relative distance between the guide wheel installation seats 500 and the driving wheel installation seats 100 is prolonged, the contact area between the crawler and the ground is increased during excavator construction, the excavator is prevented from sinking during construction, and the construction safety of the excavator is guaranteed.

In some embodiments, one end of the guide wheel mounting seat 500 is welded to a second telescopic rod, and the second telescopic rod is inserted into and fixed to the track beam 400 during assembly.

Of course, it is understood that one end of the idler wheel mounting seat 500 may be fixedly mounted on the second telescopic rod in other manners, and the track beam 400 may be inserted into the second telescopic rod and fixed during assembly. One end of the guide wheel mounting seat 500 is welded and fixed with a second telescopic rod, and during assembly, the second telescopic rod is inserted into the track beam 400 and fixed. The above is only a preferred technical solution of the present invention, and does not unnecessarily limit the technical solution of the present invention, the guide wheel mounting seat 500 of the second telescopic rod is fixedly mounted in other manners; the crawler beam 400 inserted and fixed in the second telescopic rod when assembled is within the scope of the present invention.

EXAMPLE III

Referring to fig. 3 and fig. 4, an excavator chassis provided in this embodiment is applied to an excavator, and the excavator chassis provided in this embodiment is an excavator chassis provided in the first embodiment or the second embodiment, and some of the structures of the excavator chassis are improved, compared with the excavator chassis provided in the first embodiment or the second embodiment, specifically, the improvements are as follows:

in the excavator chassis provided by this embodiment, the track beam 400 is a hollow structure, the first telescopic rod 300 is inserted into the track beam 400, correspondingly, the second telescopic rod is inserted into the track beam 400, the outer wall of the first telescopic rod 300 is attached to the inner wall of the track beam 400, and correspondingly, the outer wall of the second telescopic rod is attached to the inner wall of the track beam 400.

During the assembly, the outer wall of first telescopic link 300 and the outer wall of second telescopic link are laminated with the inner wall of crawler beam 400 respectively mutually, can increase the intensity that first telescopic link 300 and second telescopic link are connected with crawler beam 400, make drive wheel mount pad 100 and leading wheel mount pad 500 more firm with walking frame 200's being connected, avoid the excavator when the construction operation, because drive wheel mount pad 100 and leading wheel mount pad 500 are insecure with walking frame 200's being connected, and drive wheel or leading wheel that lead to break away from with walking frame 200.

In some specific embodiments, the track beam 400 is formed by welding steel plates to form a hollow housing, and the first telescopic rod 300 and the second telescopic rod are also formed by welding steel plates to form a hollow housing, when assembling, the first telescopic rod 300 and the second telescopic rod are respectively inserted into the track beam 400 from two ends of the track beam 400, and the outer wall of the first telescopic rod 300 and the outer wall of the second telescopic rod are respectively attached to the inner wall of the track beam 400.

Of course, it is understood that the track beam 400 may be otherwise formed; the first telescopic rod 300 and the second telescopic rod can also be made in other ways. The track beam 400 is formed by welding steel plates to form a hollow housing, and the first telescopic rod 300 and the second telescopic rod are also formed by welding steel plates, which are only preferred technical solutions of the present invention and do not unnecessarily limit the technical solutions of the present invention, and the track beam 400 manufactured in other manners, the first telescopic rod 300 and the second telescopic rod manufactured in other manners are within the protection scope of the present invention.

Example four

Referring to fig. 2 and fig. 3, the present embodiment provides an excavator chassis applied to an excavator, and the excavator chassis provided in the present embodiment is an excavator chassis provided in the first embodiment, the second embodiment or the third embodiment, and some structures of the excavator chassis are improved, compared with the excavator chassis provided in the first embodiment, the second embodiment or the third embodiment, the specific improvements are as follows:

in the excavator chassis provided in this embodiment, the excavator chassis further includes a limiting member 600, the track beam 400 is provided with a plurality of first limiting holes 410, the first telescopic rod 300 is provided with a second limiting hole 310, and when the first telescopic rod 300 is inserted into the track beam 400 and the second limiting hole 310 is aligned with the first limiting hole 410, the limiting member 600 sequentially passes through the first limiting hole 410 and the second limiting hole 310.

Specifically, a plurality of sets of first limiting holes 410 are formed in one side of the crawler beam 400 at intervals, the distance between the first limiting holes 410 is a multiple of the pitch of the crawler, when the second limiting holes 310 of the first telescopic rod 300 are aligned with different first limiting holes 410, the number of crawler plates only needs to be increased or decreased correspondingly, and it is not necessary to worry that the length of the crawler is not matched with the chassis.

In some embodiments, twenty sets of the first limiting holes 410 are disposed on the lower side of the track beam 400, two first limiting holes 410 are disposed in each set, five sets of the second limiting holes 310 are disposed in the first telescopic rod 300, and the spacing between the second limiting holes 310 is the same as the spacing between the first limiting holes 410, and two second limiting holes 310 are disposed in each set, and the limiting member 600 is a limiting bolt, and when the second limiting holes 310 of the first telescopic rod 300 are aligned with the first limiting holes 410 of the track beam 400, the limiting bolt sequentially passes through the first limiting holes 410 and the second limiting holes 310, so that the driving wheel mounting base 100 is fixedly mounted on the traveling frame 200.

Of course, it is understood that the first limiting hole 410 may be disposed at other positions of the track beam 400; the track beam 400 may also have other numbers of first limiting holes 410; each set of first position-limiting holes 410 may also include other numbers of first position-limiting holes 410; the first telescopic rod 300 may also be provided with other numbers of second limiting holes 310; other limiting members may be used as the limiting member 600.

Twenty groups of first limiting holes 410 are arranged on the lower side surface of the crawler beam 400, two first limiting holes 410 are arranged in each group, five groups of second limiting holes 310 are also arranged on the first telescopic rod 300, and the limiting piece 600 is a limiting bolt; the crawler beam 400 provided with other number of first limit holes 410; each set of first position-limiting holes 410 including other numbers of first position-limiting holes 410; a first telescopic rod 300 provided with other number of second limit holes 310; it is within the scope of the present invention to select the position-limiting element 600 as another position-limiting element.

EXAMPLE five

The present embodiment provides an excavator, and the excavator chassis provided in any one of the first to fourth embodiments is applied to the excavator.

Specifically, the excavator provided in this embodiment includes an excavator body, the walking frame 200 of the chassis of the excavator provided in any one of the first to fourth embodiments is provided with an excavator body mounting seat 210, and the excavator body is mounted on the excavator body mounting seat 210.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. An excavator chassis comprises a driving wheel mounting seat and a walking frame, wherein the driving wheel mounting seat is provided with a first telescopic rod, the walking frame is provided with a track beam, and the first telescopic rod is telescopically inserted into one end of the track beam;

the excavator chassis further comprises a limiting part, the crawler beam is provided with a plurality of first limiting holes, the first telescopic rod is provided with a second limiting hole, when the first telescopic rod is inserted into the crawler beam, and the second limiting hole is aligned with the first limiting hole, the limiting part sequentially penetrates through the first limiting hole and the second limiting hole, and the limiting part comprises a limiting bolt.

2. The excavator undercarriage of claim 1 further comprising a guide wheel mount having a second telescoping rod adjustably inserted at the other end of the track beam and fixable relative to the track beam.

3. The excavator chassis of claim 1, wherein the track beam is a hollow structure, the first telescopic rod is inserted into the track beam, and an outer wall of the first telescopic rod is attached to an inner wall of the track beam.

4. The excavator chassis of claim 1, wherein the second plurality of restraint apertures are provided.

5. The excavator chassis of claim 1 wherein the walking frame is an organism mount for mounting an organism of an excavator.

6. The excavator chassis of claim 1, wherein the track beam is welded to the walking frame.

7. The excavator chassis of claim 1, the first telescoping rod is welded to the drive wheel mount.

8. An excavator, comprising: the excavator chassis of any one of claims 1 to 7; and the machine body is arranged on the excavator chassis.