CN220666346U

CN220666346U - Front cover structure of excavator

Info

Publication number: CN220666346U
Application number: CN202322255820.2U
Authority: CN
Inventors: 孙晓阳; 马胜宇; 徐晓宇; 胡卫东; 王正航
Original assignee: Weichai Qingdao Smart Heavy Industry Co ltd
Current assignee: Weichai Qingdao Smart Heavy Industry Co ltd
Priority date: 2023-08-22
Filing date: 2023-08-22
Publication date: 2024-03-26
Anticipated expiration: 2033-08-22

Abstract

The utility model relates to the technical field of excavator accessory processing, and discloses an excavator front cover structure, which comprises a cover framework and a cover front door hinged at the upper part of the cover framework, wherein the left end of the cover framework is hinged with a cover left door matched with the cover front door, the right end of the cover framework is provided with a positioning reinforcing rib matched with the right side edge of the cover front door, the inner walls of the left side and the right side of the cover front door are respectively provided with a limiting clamping device matched with the cover left door and the positioning reinforcing rib, the upper part of the cover framework is provided with a supporting and positioning mechanism matched with the cover front door, and the lower part of the cover framework is provided with an anti-collision block matched with the cover front door and the cover left door. The front cover structure is stable and firm in structure and convenient to assemble, disassemble and overhaul, the front cover structure is divided into the front cover door and the left cover door which are respectively hinged on the cover framework, and the whole front cover can be quickly installed on the excavator frame, so that the front cover structure is more convenient to overhaul.

Description

Front cover structure of excavator

Technical Field

The utility model relates to the technical field of excavator accessory machining, in particular to an excavator front cover structure.

Background

The front cover of the excavator is an important component of the excavator, and has important influence on the normal operation and service life of the excavator. The existing front cover of the excavator is of an integrated structure, is complex to assemble, disassemble and maintain when abnormal conditions such as bruise occur, is inconvenient for staff to maintain, and meanwhile, the integrated front cover cannot be assembled, disassembled and maintained independently; at present, the front cover is made of DCPD material, so that the front cover is high in price, and when the front cover collides, the DCPD material can be permanently deformed and cannot be repaired, and further the maintenance cost is increased.

Disclosure of Invention

The utility model aims to provide the front cover structure of the excavator, which is stable and firm in structure and convenient to overhaul and is installed in a sectional mode.

The utility model discloses a front cover structure of an excavator, which is structurally characterized by comprising a cover framework and a cover front door hinged to the upper part of the cover framework, wherein the left end of the cover framework is hinged to a cover left door matched with the cover front door, the right end of the cover framework is provided with positioning reinforcing ribs matched with the right side edge of the cover front door, the inner walls of the left side and the right side of the cover front door are respectively provided with limiting clamping devices matched with the cover left door and the positioning reinforcing ribs, the upper part of the cover framework is provided with a supporting and positioning mechanism matched with the cover front door, and the lower part of the cover framework is provided with an anti-collision block matched with the cover front door and the cover left door.

After adopting above-mentioned structure, through divide into aircraft bonnet qianmen and aircraft bonnet left door with whole front shroud structure and articulate respectively on the aircraft bonnet skeleton and make the whole installation that can be quick in the excavator frame of front shroud, also more convenient when the maintenance simultaneously, can effectively improve dismouting and maintenance efficiency, and the location strengthening rib that sets up on the aircraft bonnet skeleton, make the overall stability of aircraft bonnet skeleton stronger and make things convenient for cooperateing with the driver's cabin, the setting of spacing chucking device can make the installation of aircraft bonnet qianmen and aircraft bonnet left door and aircraft bonnet skeleton more agree with, and support positioning mechanism's setting can make things convenient for the upper and lower flip of aircraft bonnet qianmen.

Preferably, the bonnet skeleton includes the location mounting bracket that chassis set up under chassis and perpendicular, the chassis includes preceding curb plate and the left side board that the level set up and the L type frame structure that the both sides board looks perpendicular connection constitutes down, the location mounting bracket is including supporting the vertical roof beam and following the perpendicular rigid coupling of horizontal direction and supporting the vertical roof beam upper end supporting beam, the perpendicular rigid coupling of lower part of supporting the vertical roof beam is at the left side board end of chassis and the vertical plane that supporting beam place and the vertical plane that the preceding curb plate place are parallel to each other. Through the mutual effective reasonable saving usage space of two kinds of L type's of support of chassis and location mounting bracket down, cooperate with the location strengthening rib simultaneously, make overall structure also more firm.

Preferably, the hood front door is of a shell structure with a bent upper part, the length of the hood front door is matched with the length of the supporting beam, two first hinges are arranged on the inner wall, close to the upper end edge, of the hood front door at intervals along the length direction, the two first hinges are arranged on the upper end face of the supporting beam, and a hood lock is arranged on the lower body of the hood front door. The first hinge is hinged with the supporting beam, so that the upper and lower turnover covers of the front door of the hood can be facilitated, and the hood lock is arranged to fix the front door of the hood on the excavator frame conveniently.

Preferably, the left door of the hood is an upper body and a shell which is close to the inner end edge and is bent towards the inner side of the left door of the hood, the inner side edge of the left door of the hood is attached to the left side edge of the front door of the hood, the front side wall and the upper top surface of the left door of the hood are respectively level with the front side wall and the upper top surface of the front door of the hood, and two second hinges which are installed on the left side wall of the supporting vertical beam are arranged at intervals in the vertical direction at the position of the inner wall of the left door of the hood, which is close to the outer end edge. Through with the left door hinge of aircraft bonnet on the left support vertical beam of aircraft bonnet qianmen, can make things convenient for the left and right flip of aircraft bonnet left door and make things convenient for the staff to change and overhaul the inside device of aircraft bonnet.

Preferably, the positioning reinforcing rib comprises a mounting base arranged on the upper top surface of the right end of the supporting beam, a bending plate body connected to the upper top surface of the mounting base and the front side wall of the right end of the front side plate is arranged on the mounting base and the front side plate, and the shape of the bending plate body is adapted to the longitudinal section of the front door of the hood.

Preferably, the limiting clamping device comprises a clamping seat arranged on the inner side wall of the front door of the hood and an inclined clamping plate arranged on the clamping seat, wherein a positioning plate extending out of the side edge of the hood is arranged on the inner wall, close to the front door of the hood, of the left door of the hood and the positioning reinforcing rib, and a clamping jaw matched with the inclined clamping plate is arranged on the positioning plate. Through the slope cardboard that sets up on the aircraft bonnet qianmen respectively with the jack catch that sets up on the aircraft bonnet left side door and the jack catch that sets up on the location strengthening rib, can effectually lock aircraft bonnet left side door and make the stability of whole aircraft bonnet stronger.

Preferably, the support positioning mechanism comprises a hinge seat and a gas spring arranged on the hinge seat, the hinge seat is arranged on the front side wall of the middle part of the support beam, one end of the gas spring is hinged on the hinge seat, and the other end of the gas spring is hinged on the inner side wall of the front door of the machine cover. Through the both ends of air spring handing-over respectively on the inner wall of articulated seat and aircraft bonnet qianmen, can make things convenient for the upper and lower flip of aircraft bonnet qianmen and play certain location supporting role and convenient maintenance.

Preferably, the anti-collision block comprises a limiting plate vertically fixedly connected to the lower portion of the hood framework, a threaded hole is formed in the limiting plate, a screw rod is screwed to the threaded hole, an anti-collision rubber sleeve matched with the inner wall of the door body is arranged at the outer end of the screw rod, and the outer end edge of the screw rod extends out of a vertical surface where the outer side wall of the lower chassis is located. The distance that anticollision rubber cover of anticollision piece front end extends can be adjusted through the screw rod, thereby can effectually avoid aircraft bonnet qianmen and aircraft bonnet left door to take place to interfere with the lower part of aircraft bonnet skeleton respectively and damage the deformation.

In summary, the beneficial effects of the utility model are as follows: the front cover structure is divided into the front cover door and the left cover door which are hinged to the cover framework respectively, the front cover can be installed on the excavator frame rapidly, meanwhile, the front cover structure is more convenient to overhaul, the dismounting and overhaul efficiency can be effectively improved, the positioning reinforcing ribs arranged on the cover framework enable the whole stability of the cover framework to be stronger and convenient to be matched with a cab, the limiting clamping device is arranged, the installation of the front cover door and the left cover door of the cover and the cover framework is more matched, and the arrangement of the supporting and positioning mechanism can facilitate the up-down flip of the front cover door of the cover.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of a front view structure of the present utility model;

fig. 3 is a schematic bottom view of the present utility model.

In the figure: 1. a hood framework; 2. a left door of the hood; 3. positioning reinforcing ribs; 4. a limiting clamping device; 5. a supporting and positioning mechanism; 6. an anti-collision block; 7. a lower chassis; 8. positioning the mounting frame; 9. supporting a vertical beam; 10. a support beam; 11. a first hinge; 12. a hood lock; 13. a second hinge; 14. a mounting base; 15. bending the plate body; 16. a clamping seat; 17. an inclined clamping plate; 18. a positioning plate; 19. a claw; 20. a hinge base; 21. a gas spring; 22. a threaded hole; 23. a screw; 24. an anti-collision rubber sleeve; 25. a hood front door; 26. and a limiting plate.

Detailed Description

The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.

In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

In the description of the present application, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

The following is a description of preferred embodiments of the utility model, taken in conjunction with the accompanying drawings.

Referring to the drawings, the utility model comprises a hood framework 1 and a hood front door 25 hinged at the upper part of the hood framework 1, a left hood door 2 matched with the hood front door 25 is hinged at the left end of the hood framework 1, a positioning reinforcing rib 3 matched with the right side edge of the hood front door 25 is arranged at the right end of the hood framework 1, and when the hood framework 1 is designed, the hood framework 1 comprises a lower underframe 7 and a positioning mounting frame 8 arranged vertical to the lower underframe 7, wherein the lower underframe 7 comprises a front side plate and a left side plate which are horizontally arranged, and the two side plates are vertically connected to form an L-shaped frame structure, the positioning mounting frame 8 comprises a supporting vertical beam 9 and a supporting cross beam 10 vertically fixedly connected at the upper end of the supporting vertical beam 9 along the horizontal direction, and the lower part of the supporting vertical beam 9 is vertically fixedly connected at the tail end of the left side plate of the lower underframe 7, and the vertical plane where the supporting cross beam 10 is positioned is mutually parallel to the vertical plane where the front side plate is positioned. When in manufacture, the supporting cross beam 10 is positioned on the right side of the supporting vertical beam 9, and the front side plate is also positioned on the right side of the front side plate; the positioning reinforcing rib 3 comprises a mounting base 14 mounted on the upper top surface of the right end of the supporting beam 10, and a bending plate body 15 connected to the upper top surface of the mounting base 14 and the front side plate and the front side wall of the right end of the front side plate is arranged on the mounting base 14 and the front side plate, and the shape of the bending plate body 15 is adapted to the longitudinal section of the left hood front door 25. Like this through the mutual effective reasonable saving usage space of two kinds of L type supports of chassis 7 and location mounting bracket 8 down, cooperate with location strengthening rib 3 simultaneously, make aircraft bonnet skeleton 1 overall structure also more firm, one side of location strengthening rib 3 is close to the setting of excavator driver's cabin generally.

The hood front door 25 is of a shell structure with a bent upper part, the length of the hood front door 25 is matched with the length of the supporting beam 10, two first hinges 11 are arranged on the inner wall, close to the upper end edge, of the hood front door 25 at intervals along the length direction, the two first hinges 11 are arranged on the upper end face of the supporting beam 10, the hood front door 25 can be conveniently hinged with the supporting beam 10 through the first hinges 11, the hood front door 25 can be conveniently turned up and down, and the hood lock 12 is arranged on the lower body of the hood front door 25, so that the hood front door 25 can be conveniently fixed on the excavator frame through the arrangement of the hood lock 12; the hood left door 2 is an upper body and a body close to the inner end edge is bent towards the inner side of the hood left door 2, the inner side of the hood left door 2 is attached to the left side edge of the hood front door 25, the front side wall and the upper top surface of the hood left door 2 are respectively flush with the front side wall and the upper top surface of the hood front door 25, and simultaneously, two second hinges 13 are arranged at the position of the inner wall of the hood left door 2 close to the outer end edge along the vertical direction at intervals, and are arranged on the left side wall of the supporting vertical beam 9. The left cover turning and maintenance of the hood inner device can be facilitated by hinging the hood left door 2 on the supporting vertical beam 9 on the left side of the hood front door 25, and the hood front door 25 is designed to be of a structure with the upper portion bent and the upper portion horizontally arranged, so that the hood front door can be conveniently matched with the hood framework 11 to protect the hood inner device and improve the overall rigidity of the hood front door 25 and is not easy to deform. Of course, the structure and the installation manner of the hood lock 12 and the hinge are well known structures, and will not be described herein.

The inner walls of the left side and the right side of the hood front door 25 are respectively provided with a limiting clamping device 4 matched with the hood left door 2 and the positioning reinforcing ribs 3, the limiting clamping device 4 comprises a clamping seat 16 arranged on the inner side wall of the hood front door 25 and an inclined clamping plate 17 arranged on the clamping seat 16, the inner walls of the hood left door 2, which are close to the hood front door 25, of the positioning reinforcing ribs 3 are provided with positioning plates 18 extending out of the hood side edges, and the positioning plates 18 are provided with clamping claws 19 matched with the inclined clamping plates 17. In design, clamping seat 16 and set up the slope cardboard 17 on clamping seat 16 set up respectively on the left and right sides inner wall of aircraft bonnet qianmen 25 and be close to aircraft bonnet left door 2 and location strengthening rib 3, and foretell clamping seat 16 is the rectangle baffle of interior terminal surface rigid coupling on aircraft bonnet qianmen 25 inside wall and rectangle baffle along aircraft bonnet qianmen 25's width direction setting, be provided with the slope cardboard 17 on rectangle baffle's outer terminal surface, and the slope cardboard 17 is the rectangular plate along the middle part through the integrated into one piece plate body of buckling shaping and the contained angle of buckling be the acute angle, the both sides limit of rectangular plate kink is respectively along the length direction rigid coupling of rectangular baffle on the outer terminal surface of rectangle baffle, during the preparation, the shape of jack catch 19 sets up to the draw-in groove structure that suits with the body cross section of slope cardboard 17, like this through aircraft bonnet left door 2 and the jack catch 19 on the location strengthening rib 3 with the slope cardboard 17 on aircraft bonnet qianmen 25 cooperate, can be through aircraft bonnet qianmen 2 dress on the frame and one side dress on the strengthening rib 3 on, thereby effectively avoid the aircraft bonnet left door 25 and aircraft bonnet left door 2 to laminate on the locating strengthening rib 3, thereby install the aircraft bonnet door 25 and aircraft bonnet door 2 and the swing door 2 and the top door 25 when the aircraft bonnet door 2 is closed, and the aircraft bonnet door 25 is moved towards the left door 25 and is moved towards in the left door 25 when the front door 25 is fixed to the upper door 25 and the upper door 25.

The upper portion of the hood framework 1 is provided with a supporting and positioning mechanism 5 matched with the hood front door 25, the supporting and positioning mechanism 5 comprises a hinge seat 20 and a gas spring 21 arranged on the hinge seat 20, the hinge seat 20 is arranged on the front side wall of the middle portion of the supporting beam 10, one end of the gas spring 21 is hinged on the hinge seat 20, the other end of the gas spring is hinged on the inner side wall of the hood front door 25, and thus the two ends of the gas spring 21 are respectively connected on the hinge seat 20 and the inner wall of the hood front door 25, the hood front door 25 can be conveniently turned up and down, a certain positioning and supporting effect is achieved, and the maintenance is convenient. The lower part of the hood framework 1 is also provided with an anti-collision block 6 matched with the hood front door 25 and the hood left door 2, and in design, the anti-collision block 6 comprises a limiting plate 26 vertically fixedly connected to the lower part of the hood framework 1, a threaded hole 22 is formed in the limiting plate 26, a screw rod 23 is screwed in the threaded hole 22, the outer end of the screw rod 23 is provided with an anti-collision rubber sleeve 24 matched with the inner wall of the door body, and normally the outer end edge of the screw rod 23 extends out of the vertical surface where the outer side wall of the lower chassis 7 is located and is located in the vertical plane where the outer end face of the bottom of the positioning reinforcing rib 3 is located. The extending distance of the anti-collision rubber sleeve 24 at the front end of the anti-collision block 6 can be adjusted through the screw 23, so that the front hood door 25 and the left hood door 2 can be effectively prevented from being interfered with the lower part of the hood framework 1 respectively, and damage deformation can be avoided.

The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims

1. An excavator front shroud structure, its characterized in that: including aircraft bonnet skeleton (1) and articulated at aircraft bonnet skeleton (1) upper portion aircraft bonnet qianmen (25), the left end of aircraft bonnet skeleton (1) articulates have with aircraft bonnet qianmen (25) complex aircraft bonnet left door (2), the right-hand member of aircraft bonnet skeleton (1) is provided with along assorted location strengthening rib (3) with aircraft bonnet qianmen (25) right side, be provided with respectively on the inner wall of aircraft bonnet qianmen (25) left and right sides with aircraft bonnet left door (2) and location strengthening rib (3) complex spacing chucking device (4), aircraft bonnet skeleton (1) upper portion be provided with aircraft bonnet qianmen (25) complex support positioning mechanism (5), the lower part of aircraft bonnet skeleton (1) be provided with aircraft bonnet qianmen (25) and aircraft bonnet left door (2) complex crashproof piece (6).

2. The front cover structure of an excavator according to claim 1, wherein: the hood framework (1) comprises a lower chassis (7) and a positioning installation frame (8) which is perpendicular to the lower chassis (7), the lower chassis (7) comprises a front side plate and a left side plate which are horizontally arranged, and two side plates are perpendicular to each other to form an L-shaped frame structure, the positioning installation frame (8) comprises a supporting vertical beam (9) and a supporting cross beam (10) which is fixedly connected to the upper end of the supporting vertical beam (9) along the horizontal direction, and the lower part of the supporting vertical beam (9) is perpendicular to the vertical plane where the tail end of the left side plate of the lower chassis (7) is located and the supporting cross beam (10) is parallel to the vertical plane where the front side plate is located.

3. The front cover structure of an excavator according to claim 2, wherein: the engine cover front door (25) is of a shell structure with a bent upper portion, the length of the engine cover front door (25) is matched with that of the supporting beam (10), two first hinges (11) are arranged on the inner wall, close to the upper end edge, of the engine cover front door (25) at intervals along the length direction, the two first hinges (11) are arranged on the upper end face of the supporting beam (10), and an engine cover lock (12) is arranged on the lower body of the engine cover front door (25).

4. The front cover structure of an excavator according to claim 2, wherein: the left door (2) of the machine cover is an upper body and a shell which is close to the inner end edge and is bent towards the inner side of the left door (2) of the machine cover, the inner side edge of the left door (2) of the machine cover is attached to the left side edge of the front door (25) of the machine cover, the front side wall and the upper top surface of the left door (2) of the machine cover are respectively flush with the front side wall and the upper top surface of the front door (25) of the machine cover, and two second hinges (13) which are installed on the left side wall of the supporting vertical beam (9) are arranged at intervals along the vertical direction at the position of the inner wall of the left door (2) of the machine cover, which is close to the outer end edge.

5. The front cover structure of an excavator according to claim 2, wherein: the positioning reinforcing rib (3) comprises a mounting base (14) arranged on the upper top surface of the right end of the supporting beam (10), the mounting base (14) and the front side plate are provided with a bending plate body (15) connected to the upper top surface of the mounting base (14) and the front side wall of the right end of the front side plate, and the shape of the bending plate body (15) is matched with the longitudinal section of the front door (25) of the hood.

6. The front cover structure of an excavator according to claim 1, wherein: the limiting clamping device (4) comprises a clamping seat (16) arranged on the inner side wall of the hood front door (25) and an inclined clamping plate (17) arranged on the clamping seat (16), a positioning plate (18) extending out of the side edge of the body is arranged on the inner wall, close to the hood front door (25), of the hood left door (2) and the positioning reinforcing rib (3), and clamping claws (19) matched with the inclined clamping plate (17) are arranged on the positioning plate (18).

7. The front cover structure of an excavator according to claim 1, wherein: the support positioning mechanism (5) comprises a hinge seat (20) and a gas spring (21) arranged on the hinge seat (20), the hinge seat (20) is arranged on the front side wall of the middle part of the support cross beam (10), one end of the gas spring (21) is hinged on the hinge seat (20) and the other end of the gas spring is hinged on the inner side wall of the front door (25) of the hood.

8. The front cover structure of an excavator according to claim 1, wherein: the anti-collision block (6) comprises a limiting plate (26) vertically fixedly connected to the lower portion of the hood framework (1), a threaded hole (22) is formed in the limiting plate (26), a screw rod (23) is connected to the threaded hole (22) in a threaded mode, an anti-collision rubber sleeve (24) matched with the inner wall of the door body is arranged at the outer end of the screw rod (23), and a vertical face where the outer side wall of the lower chassis (7) is located extends from the outer end edge of the screw rod (23).