CN113216310A

CN113216310A - Chassis system and excavator

Info

Publication number: CN113216310A
Application number: CN202110533954.9A
Authority: CN
Inventors: 孙占瑞; 张勇; 张宝海
Original assignee: Jiangsu XCMG Construction Machinery Institute Co Ltd
Current assignee: Jiangsu XCMG Construction Machinery Institute Co Ltd
Priority date: 2021-05-17
Filing date: 2021-05-17
Publication date: 2021-08-06
Anticipated expiration: 2041-05-17
Also published as: CN113216310B

Abstract

The invention discloses a chassis system and an excavator. The chassis system comprises a crawler-type walking module, a tire-type walking module and a frame main body, wherein the crawler-type walking module comprises a first longitudinal beam main body, and a driving wheel seat body and a guide wheel seat body which are respectively arranged at two ends of the first longitudinal beam main body. The tire type walking module comprises a second longitudinal beam main body, and a front wheel seat body and a rear wheel seat body which are respectively arranged at two ends of the second longitudinal beam main body. The frame body is configured to be selectively removably coupled to one of the crawler-type travel module and the tire-type travel module. The chassis system sets up the connection form between frame main part and the walking module into detachable form, and then when the excavator need get into crawler-type walking mode, can be connected to the frame main part with crawler-type walking module on, when needs get into tire walking mode, can be connected to the frame main part with tire-type walking module, and then conveniently switches, satisfies user's the diversified demand of product.

Description

Chassis system and excavator

Technical Field

The invention relates to the field of engineering machinery, in particular to a chassis system and an excavator.

Background

The excavator is most widely applied in the field of engineering construction, and is divided into a tire type excavator and a crawler type excavator according to different walking modes, wherein the two types of excavators are mainly different in walking chassis. The chassis of the crawler excavator is formed by integrally welding a crawler beam X frame and assembling four wheel belts, and the chassis of the rubber-tyred excavator is formed by a frame with a box-type structure, a steering front axle, a rear axle, a walking transmission mechanism and the like. Because the two types of excavators have completely different chassis, the two types of excavators need to be independently performed in the processes of design, manufacture, maintenance and the like in an enterprise, so that the production cost is increased and the efficiency is reduced.

It is important to note here that the statements in this background section merely provide background information related to the present disclosure and may not necessarily constitute prior art.

Disclosure of Invention

The invention provides a chassis system and an excavator, which meet the product diversification requirements of users.

A first aspect of the present invention provides a chassis system comprising:

the crawler-type traveling module comprises a first longitudinal beam main body, and a driving wheel seat body and a guiding wheel seat body which are respectively arranged at two ends of the first longitudinal beam main body, wherein the driving wheel seat body is used for mounting a crawler driving wheel, and the guiding wheel seat body is used for mounting a crawler guiding wheel;

the tire type walking module comprises a second longitudinal beam main body, and a front wheel seat body and a rear wheel seat body which are respectively arranged at two ends of the second longitudinal beam main body, wherein the front wheel seat body is used for installing a front tire, and the rear wheel seat body is used for installing a rear tire; and

a frame body configured to be selectively removably coupled to one of the crawler-type travel module and the tire-type travel module.

In some embodiments, a frame interface is provided on the frame body, and one of the first and second rail bodies is removably attached to the frame interface.

In some embodiments, the first and second rail bodies each include a rail interface connected with the frame interface.

In some embodiments, the frame interface includes at least one frame wedge groove and the rail interface includes at least one rail wedge groove, the at least one rail wedge groove being disposed in correspondence with the at least one frame wedge groove.

In some embodiments, the first and second stringer bodies are identical in construction.

In some embodiments, the first rail body includes a box structure, a first connecting plate and a second connecting plate, the first connecting plate and the second connecting plate are connected to a side of the box structure near a side of the frame body, and the first connecting plate and the second connecting plate are both provided with the rail connecting interface.

In some embodiments, the outer side of the first connection plate and the outer side of the second connection plate are disposed flush.

In some embodiments, the first and second connection plates are integrally provided.

A second aspect of the present invention provides an excavator comprising the above-described chassis system, the frame body being configured to be selectively detachably connectable with one of the crawler travel module and the tire travel module to switch the excavator between the crawler travel mode and the tire travel mode.

Based on the aspects provided by the invention, the chassis system sets the connection form between the frame main body and the walking module to be a detachable form, so that when the excavator needs to enter a crawler walking mode, the crawler walking module can be connected to the frame main body, and when the excavator needs to enter a tire walking mode, the tire walking module can be connected to the frame main body, so that the switching is convenient, and the product diversification requirements of users are met. In addition, the modular manufacturing method is adopted, and only the crawler type walking module and the tire type walking module need to be developed in the manufacturing process aiming at the crawler excavator and the tire excavator, and other modules are the same, so that the reusability of parts and the production process is improved, the development cost is reduced, and the production efficiency is improved.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

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 without limiting the invention. In the drawings:

fig. 1 is a schematic structural view of an excavator according to an embodiment of the present invention when it is in a crawler travel mode.

Fig. 2 is a schematic structural view of a chassis system of the excavator shown in fig. 1.

Fig. 3 is a schematic structural view of the crawler type traveling module in fig. 2.

Fig. 4 is a schematic structural view of the excavator according to the embodiment of the present invention when in a tire travel mode.

Fig. 5 is a schematic structural view of the undercarriage system of the excavator shown in fig. 4.

Fig. 6 is a schematic structural view of the tire type traveling module of fig. 5.

Fig. 7 is a schematic view of the connection of the tire running module shown in fig. 5 to the frame body.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. 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.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously positioned and the spatially relative descriptors used herein interpreted accordingly.

The tire type walking module and the crawler type walking module which can be quickly disassembled and assembled and used interchangeably are selectively connected with the frame main body, so that the excavator can be switched between the crawler type walking mode and the tire type walking mode, and the product diversification requirements of customers are met. And the problems of increased production cost and reduced efficiency caused by diversification of processes such as design, manufacture and maintenance in the enterprise can be solved.

Fig. 1 shows a schematic configuration of the excavator in a crawler travel mode, and fig. 4 shows a schematic configuration of the excavator in a tire travel mode. Fig. 1 and 4 differ in that the traveling module is replaced, specifically, a crawler-type traveling module is used in the undercarriage system of the excavator shown in fig. 1, and a tire-type traveling module is used in the undercarriage system of the excavator shown in fig. 4.

Referring to fig. 1 and 4, the excavator 100 includes a chassis system and a boarding system provided at an upper side of the chassis system. The getting-on system comprises a power device, a counterweight, a cab, a working device and the like. The following is a detailed description of the structure of the undercarriage system of the excavator according to the embodiment of the present invention.

In some embodiments, referring to fig. 2-6, the chassis system includes a crawler-type traveling module 20, a tire-type traveling module 30, and a frame body 10. The undercarriage system further includes a turntable and a slewing bearing.

Referring to fig. 2, the crawler-type traveling module 20 includes a first longitudinal beam main body 21, and a driving wheel seat 23 and a guiding wheel seat 22 respectively disposed at two ends of the first longitudinal beam main body 21. The drive wheel housing 23 is used for mounting a track drive wheel 26, and the idler wheel housing 22 is used for mounting a track idler wheel 24.

Referring to fig. 6, the tired running module 30 includes a second longitudinal beam body 31, and a front wheel housing 32 and a rear wheel housing 33 respectively disposed at both ends of the second longitudinal beam body 31, the front wheel housing 32 being used for mounting a front tire 36, and the rear wheel housing 33 being used for mounting a rear tire 37.

Frame body 10 is configured to be selectively removably coupled to one of crawler-type tread module 20 and tire-type tread module 30.

This chassis system sets up the connection form between frame main part 10 and the walking module into detachable form, and then when the excavator needs to get into crawler-type walking mode, can be connected to frame main part 10 with crawler-type walking module 20 on, when needs get into tire walking mode, can be connected to frame main part 10 with tire formula walking module 30 on, and then conveniently switch, satisfy user's the diversified demand of product. In addition, the embodiment of the invention adopts a modularized manufacturing method, and only a crawler type walking module and a tire type walking module need to be developed aiming at the crawler excavator and the tire excavator in the manufacturing process, and other modules are the same, so that the reusability of parts and the production process is improved, the development cost is reduced, and the production efficiency is improved.

To facilitate connection of crawler-type and tire-

type travel modules

20, 30 to frame body 10 for easy removal and replacement, frame body 10 is provided with a frame interface in some embodiments. One of the first and second rail bodies is removably attached to the frame interface. That is, the frame body 10 is provided with a frame interface, and the first longitudinal beam body 21 of the crawler type traveling module 20 and the second longitudinal beam body 31 of the tire type traveling module 30 are detachably connected to the same frame interface, so that the same frame body can be adopted for excavators with different traveling modes to form a modular structure.

In some embodiments, first rail body 21 and second rail body 31 each include a rail interface in mating connection with the frame interface. The first longitudinal beam main body 21 and the second longitudinal beam main body 31 are provided with longitudinal beam interfaces which are matched and connected with the frame interfaces, and the longitudinal beam interfaces on the first longitudinal beam main body 21 and the second longitudinal beam main body 31 are the same.

Further, to better achieve modularity throughout the chassis system manufacturing process, in some embodiments, the first and

second stringer bodies

21, 22 are identical in structure. Thus, only the same longitudinal beam main body is manufactured in the production process, and the longitudinal beam main body and different components are assembled to form different walking modules.

In some embodiments, the frame interface comprises at least one frame wedge tab and the rail interface comprises at least one rail wedge groove, the at least one rail wedge groove being disposed in correspondence with the at least one frame wedge tab. The arrangement of the wedge-shaped fitting piece enables the longitudinal beam main body and the frame main body to be quickly positioned during dismounting.

In some embodiments, the frame interface further comprises bolt holes, and the bolt holes on the longitudinal beams are correspondingly connected with the bolt holes on the frame. The cooperation between above wedge-shaped convex key and the wedge-shaped recess can prevent that the bolt from receiving the shearing force effect and damaging.

In some embodiments, the first rail body 20 includes a box structure, a first connecting plate 211 and a second connecting plate 212, the first connecting plate 211 and the second connecting plate 212 are connected to the side of the box structure near the side of the frame body 10, and a rail interface is disposed on each of the first connecting plate 211 and the second connecting plate 212.

In some embodiments, the outer side of the first connection plate 211 and the outer side of the second connection plate 212 are disposed flush.

In other embodiments not shown in the figures, the first and second connection plates are integrally provided.

The structure of the excavator according to the embodiment of the present invention will be described in detail with reference to fig. 1 to 7.

As shown in FIG. 1, the excavator 100 includes a chassis system and a loading system.

As shown in fig. 2, the chassis system includes a frame body 10 and a crawler-type traveling module 20. As shown in fig. 2 and 3, the crawler type traveling module 20 includes a first longitudinal beam main body 21, a driving wheel seat body 23, and a guide wheel seat body 22. The driving wheel housing 23 and the guide wheel housing 22 are welded to both ends of the first longitudinal beam body 21, respectively. Specifically, the drive wheel housing 23, the first longitudinal beam main body 21, and the guide wheel housing 22 are integrally welded. The driving wheel seat body 23 is used for installing a driving wheel 26, and the driving wheel 26 is in driving connection with a walking speed reducer motor. The guide wheel housing 22 is used for mounting the guide wheel 24. A crawler 27 is provided around the guide wheels 24 and the drive wheels 26.

Wherein the first longitudinal beam main body 21 is a box structure welding piece. As shown in fig. 3, one side of the first longitudinal beam body 21 close to the frame body 10 is connected with a first connecting plate 211 and a second connecting plate 212, the first connecting plate 211 and the second connecting plate 212 are respectively provided with a plurality of wedge-shaped grooves and bolt holes, and the wedge-shaped grooves and the bolt holes are matched with a plurality of wedge-shaped convex keys and bolt holes arranged on the side surface of the frame body 10, so that the bolt can be quickly positioned during disassembly and assembly, and can be prevented from being damaged due to the action of excessive shearing force.

In this embodiment, the first and

second connection plates

211 and 212 are disposed coplanar to facilitate a snug connection with the sides of the frame body.

In other embodiments, the first and second connection plates may be provided as one plate.

As shown in fig. 2, the chassis system of the present embodiment includes two crawler type traveling modules 20 respectively provided on the left and right sides of the frame body 10.

Fig. 4 shows a configuration in which the crawler-type traveling module 20 of the excavator 100 shown in fig. 1 is replaced with the tire-type traveling module 30.

As shown in fig. 5, after the traveling module is replaced, the chassis system includes a second side member main body 31, and a front wheel seat body 32 and a rear wheel seat body 33 respectively connected to both ends of the second side member main body 31. A front tire 36 is mounted on the front wheel housing 32, and a rear tire 37 is mounted on the rear wheel housing 33. Wherein the front wheel seat body 32 and the rear wheel seat body 33 are welded to both ends of the second side member main body 31, respectively. The second side member main body 31 and the first side member main body 21 have the same structure and can be used interchangeably.

As shown in fig. 5, the chassis system further includes a steering cylinder 34 and a knuckle 35. The steering oil cylinder 34 is installed between the steering knuckle 35 and the wheel seat body, and the steering knuckle and the vehicle are driven to rotate through the extension and contraction of the steering oil cylinder 34.

As shown in fig. 6, the second side member main body 31 also includes a first connecting plate 311 and a second connecting plate 312. Taking the connection between the first connection plate 311 and the frame body 10 as an example, as shown in fig. 7, a wedge-shaped groove 313 is provided on the first connection plate 311, a wedge-shaped key 11, the wedge-shaped key 11 and the wedge-shaped groove 313 are provided on the frame body 10, when the first connection plate 311 and the frame body 10 are connected, the wedge-shaped key 11 and the wedge-shaped groove 313 cooperate to be quickly positioned, and then the first connection plate 311 and the frame body 10 are connected by using a bolt 50 through a bolt hole.

In summary, the excavator of the present embodiment can realize the switching between the crawler excavator and the tire excavator by only replacing the walking module.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention and not to limit it; 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

1. An undercarriage system, comprising:

a frame body (10), the frame body (10) configured to be selectively removably coupled to one of the crawler-type walking module and the tired walking module.

2. The chassis system according to claim 1, wherein a frame interface is provided on the frame body (10), one of the first and second rail bodies being detachably connected to the frame interface.

3. The chassis system of claim 2, wherein the first and second rail bodies each include a rail interface connected with the frame interface.

4. The chassis system of claim 3, wherein the frame interface comprises at least one frame wedge groove and the rail interface comprises at least one rail wedge groove, the at least one rail wedge groove being disposed in correspondence with the at least one frame wedge groove.

5. The chassis system of claim 2, wherein the first stringer body and the second stringer body are identical in construction.

6. The chassis system of claim 5, wherein the first rail body includes a box structure, a first connecting plate and a second connecting plate, the first connecting plate and the second connecting plate are connected to a side of the box structure adjacent to a side of the frame body, and each of the first connecting plate and the second connecting plate has a rail connection interface disposed thereon.

7. The chassis system of claim 6, wherein an outer side of the first connection plate and an outer side of the second connection plate are disposed flush.

8. The chassis system of claim 6, wherein the first and second connection plates are integrally provided.

9. An excavator, comprising an undercarriage system according to any one of claims 1 to 8, the frame body (10) being configured to be selectively detachably connectable with one of the crawler track type travel module and the tire type travel module to switch the excavator between a crawler track type travel mode and a tire type travel mode.