CN221251010U - Engineering machine tool is with guard shield and engineering machine tool - Google Patents

Abstract

The application relates to the field of engineering machinery, and discloses a shield for engineering machinery and engineering machinery. The shield for the engineering machinery comprises: the protective cover comprises a protective cover main body, wherein a main body cover opening is formed on the outer wall of the protective cover main body; the shield door body is used for opening and closing the main body cover opening, two ends of the shield door body are respectively formed into a door body hinged end and a door body free end correspondingly, and the door body hinged end is hinged with the shield main body; and the door support mechanism comprises a first matching structure connected to the free end of the door body and a second matching structure connected to the main body of the protective cover, wherein the first matching structure and the second matching structure can form mortise-tenon matching to support the main body of the protective cover when the door body of the protective cover is closed in the state of the cover opening of the main body. The application is used for solving the problem of poor supporting effect of the door support mechanism, and achieves the effects of preventing premature fatigue wear of the hinge of the shield door body and improving the reliability of the shield door body.

Description

Engineering machine tool is with guard shield and engineering machine tool

Technical Field

The application belongs to the field of engineering machinery, and particularly relates to a shield for engineering machinery and the engineering machinery.

Background

The working environment of engineering machinery is mostly a non-paved road surface, the ground is uneven, and a large amount of vibration is generated on a shield used for an appearance covering piece. The shroud generally includes a shroud body and a shroud door body, one end of the shroud door body being hinged to one end of the shroud body. For a large-sized shield door body, after the shield door body is closed, a door bracket must be arranged at the other end of the shield door body far away from the hinge to provide reliable support and prevent premature fatigue wear of the hinge.

As shown in fig. 7, a common door bracket structure includes an L-shaped plate 4 and a damper block 5,L, the damper block 4 being fastened to a shield door 6 by one set of bolts, and the damper block 5 being fastened to a door frame 7 by another set of bolts. After the shield door 6 is closed, the L-shaped block 4 is contacted with the vibration reduction block 5 to provide support for the shield door 6. However, the L-shaped block 4 and the damper block 5 with the above-described structure can only provide unidirectional support for the shield door 6, and cannot cope with bidirectional irregular vibration, and the support effect is poor, so that the hinge of the shield door 6 and the door frame 7 is fatigued and worn prematurely.

Disclosure of utility model

The application aims to provide a shield for engineering machinery and the engineering machinery, which are used for solving the problem of poor supporting effect of a door bracket mechanism and achieving the effects of preventing premature fatigue and abrasion of a shield door hinge and improving the reliability of the shield door.

In order to achieve the above object, an aspect of the present application provides a shroud for construction machinery, comprising:

the protective cover comprises a protective cover main body, wherein a main body cover opening is formed on the outer wall of the protective cover main body;

the shield door body is used for opening and closing the main body cover opening, two ends of the shield door body are respectively formed into a door body hinged end and a door body free end correspondingly, and the door body hinged end is hinged with the shield main body; and

The door support mechanism comprises a first matching structure connected to the free end of the door body and a second matching structure connected to the main body of the protective cover, wherein the first matching structure and the second matching structure can form mortise-tenon matching to support the door body of the protective cover in a state that the door body of the protective cover is closed to the cover opening of the main body.

In some embodiments, the first mating structure is provided with a tenon portion extending and arranged perpendicular to the shield door body, and the second mating structure is provided with a mortise portion arranged towards the main body cover opening so as to enable the tenon portion to be inserted.

In some embodiments, the first mating structure comprises: the seat board is connected with the free end of the door body and provided with a seat board perforation; the tenon matching piece comprises a mounting plate and a tenon part, wherein the mounting plate is overlapped with the seat plate and is provided with a first matching piece perforation aligned with the seat plate perforation, and the tenon part is vertically connected with the mounting plate; the first penetrating component penetrates through the first matching piece through hole and the seat board through hole in sequence.

In some embodiments, the first fitting aperture is formed as a vertical kidney aperture disposed along a vertical extension.

In some embodiments, the shield body is provided with a body aperture, and the second mating structure comprises: the pressing plate is provided with a pressing plate perforation; the mortise matching piece is in compression joint between the pressing plate and the shield main body, the mortise matching piece is provided with a mortise part and a second matching piece perforation, and the pressing plate perforation, the second matching piece perforation and the main body perforation are aligned in sequence; and the second penetrating and connecting assembly penetrates and connects the pressing plate perforation, the second matching piece perforation and the main body perforation in sequence.

In some embodiments, the second fitting aperture is formed as a transverse kidney-shaped aperture disposed along a transverse extension.

In some embodiments, the mortise-eye fitting is an elastic fitting.

In some embodiments, the tenon portion is formed as a tapered tenon portion tapered in an extending direction, and the mortise portion is formed as a tapered mortise portion tapered in a recessed direction.

In some embodiments, the conical tenon portion is provided with a first conical surface and a second conical surface in sequence along the extending direction, and the angle of the first conical surface is smaller than that of the second conical surface.

Another aspect of the present application provides a construction machine, wherein the above-described shield for construction machine is used.

Through the technical scheme, the first matching structure and the second matching structure are matched in the mortise and tenon mode, so that the first matching structure and the second matching structure are mutually restrained in at least two directions, at least two-way support can be provided for the free end of the shield door body, two-way irregular vibration generated on the shield door body by the outside is coped, the problem that the support effect of the door support mechanism is poor is solved, and the effects of preventing premature fatigue abrasion of the hinge of the shield door body and improving the reliability of the shield door body are achieved.

Additional features and advantages of embodiments of the application will be set forth in the detailed description which follows.

Drawings

The accompanying drawings are included to provide a further understanding of embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain, without limitation, the embodiments of the application. Other figures may be made from the structures shown in these figures without inventive effort for a person of ordinary skill in the art. In the drawings:

fig. 1 is a structural view of a shield door body according to an embodiment of the present application when opened.

Fig. 2 is a structural view of a shield door body according to an embodiment of the present application when closed.

FIG. 3 is a block diagram of a dovetail mating in accordance with an embodiment of the present application.

Fig. 4 is a schematic connection diagram of a first mating structure according to an embodiment of the present application.

Fig. 5 is a structural view of a mortise fitting part according to an embodiment of the present application.

Fig. 6 is a schematic connection diagram of a second mating structure according to an embodiment of the present application.

Fig. 7 is a schematic view of a door bracket structure in the prior art.

Reference numerals illustrate: the shield body 1, the body cover opening 11, the body perforation 12, the shield door body 2, the door supporting mechanism 3, the seat plate 31, the seat plate perforation 311, the tenon fitting 32, the mounting plate 321, the tenon portion 322, the first conical surface 3221, the second conical surface 3222, the first fitting perforation 323, the first penetrating component 33, the pressing plate 34, the pressing plate perforation 341, the mortise fitting 35, the mortise part 351, the second fitting perforation 352, the second penetrating component 36, the L-shaped plate 4, the vibration reduction block 5, the shield door 6 and the door frame 7.

Detailed Description

The following describes specific embodiments of the present application in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the application, are not intended to limit the application.

As shown in fig. 1 and 2, a shield for a construction machine includes:

a shield body 1, wherein a body cover opening 11 is formed on the outer wall of the shield body 1;

The shield door body 2 is used for opening and closing the main body cover opening 11, two ends of the shield door body 2 are respectively formed into a door body hinged end and a door body free end correspondingly, and the door body hinged end is hinged with the shield main body 1; and

The door support mechanism 3 comprises a first matching structure connected to the free end of the door body and a second matching structure connected to the shield main body 1, and the first matching structure and the second matching structure can form mortise-tenon matching to support the shield door body 2 under the condition that the shield door body 2 closes the main body cover opening 11.

The shield for engineering machinery is covered outside the engineering machinery to protect the internal equipment. The main body cover opening 11 is used as an opening of a protective cover, so that maintenance and overhaul of internal equipment are facilitated. The shield door body 2 is hinged to the shield main body 1 and can close the main body cover opening 11. The mortise and tenon joint cooperation of the first cooperation structure and the second cooperation structure makes both of them retrain each other in at least two directions, just then can provide at least two-way support for the door body free end of the guard shield door body 2 to the external two-way irregular vibration that produces the guard shield door body 2 of reply, and then solve the poor problem of door rest mechanism 3 supporting effect, reach the effect that prevents the early fatigue wearing and tearing of guard shield door body 2 hinge, improve guard shield door body 2 reliability.

Specifically, a tenon portion 322 extending and arranged perpendicular to the shield door body 2 is arranged in the first matching structure, and a mortise portion 351 arranged towards the main body cover opening 11 for allowing the tenon portion 322 to be inserted is arranged in the second matching structure. Tenon portion 322 inserts mortise 351, realizes the inseparable connection in two at least directions, and then provides two-way support for guard shield door body 2. Tenon 322 is perpendicular to guard shield door body 2, and when guard shield door body 2 is closed, tenon 322 can be followed and inserted mortise 351, need not extra operation.

As shown in fig. 3 and 4, specifically, the first mating structure includes: a seat plate 31 connected with the free end of the door body and provided with a seat plate perforation 311; the tenon matching piece 32 comprises a mounting plate 321 and a tenon portion 322, wherein the mounting plate 321 is overlapped with the seat plate 31 and is provided with a first matching piece perforation 323 aligned with the seat plate perforation 311, and the tenon portion 322 is vertically connected with the mounting plate 321; the first connecting component 33 sequentially connects the first fitting piece through hole 323 and the seat plate through hole 311. The seat board 31 corresponds to the mounting base of the tenon matching piece 32, and the first penetrating component 33 sequentially penetrates through the first matching piece perforation 323 and the seat board perforation 311 so as to fix the tenon matching piece 32 on the seat board 31 and further fix the tenon matching piece on the free end of the door body of the shield door body 2, so that the surface of the shield door body 2 is prevented from being perforated, and the integral aesthetic feeling of the shield is prevented from being influenced.

Further, the first fitting penetration 323 is formed as a vertical kidney-shaped hole provided to extend vertically. The vertical waist-shaped hole enables the tenon matching piece 32 to vertically adjust the installation position when being installed, eliminates the production position error of the seat plate 31 and the installation position error of the shield door body 2, and further enables the tenon portion 322 and the mortise portion 351 to be accurately inserted and connected, and the assembly is convenient.

In some embodiments, the seat plate 31 is welded to the inner side surface of the shroud door body 2, and the seat plate through holes 311 are a pair of vertically arranged screw holes. The tenon 322 is a solid or hollow metal body, and the mounting plate 321 is a flat plate. The tenon 322 is centered and perpendicular to the mounting plate 321, and is assembled into the tenon fitting 32 by welding or integral molding. The first fitting penetration 323 is a pair of vertically kidney holes arranged vertically. The first attachment assembly 33 includes a threaded fastener and a washer, with a set of threaded fasteners threaded through the washer, the first fitting aperture 323, and the seat plate aperture 311 in sequence.

As shown in fig. 5 and 6, specifically, the shield body 1 is provided with a body through hole 12, and the second mating structure includes: a platen 34 provided with platen perforations 341; the mortise fitting piece 35 is in press connection between the pressing plate 34 and the shield main body 1, the mortise fitting piece 35 is provided with a mortise 351 and a second fitting piece perforation 352, and the pressing plate perforation 341, the second fitting piece perforation 352 and the main body perforation 12 are aligned in sequence; the second connecting assembly 36 sequentially connects the pressing plate hole 341, the second fitting hole 352 and the main body hole 12, and presses the pressing plate 34 and the mortise fitting 35 to the shield main body 1. The pressing plate 34 is arranged between the second penetrating and connecting component 36 and the mortise mating piece 35 in a cushioning mode, and the surface of the mortise mating piece 35 is prevented from being damaged after the second penetrating and connecting component 36 is pressed.

Further, the second fitting penetration hole 352 is formed as a lateral kidney-shaped hole provided extending in the lateral direction. The transverse kidney-shaped hole enables the mortise fitting 35 to be capable of transversely adjusting the installation position thereof when being installed, eliminating production position errors of the main body perforation 12 and installation position errors of the shield door body 2, and further enabling the tenon portion 322 to be accurately inserted with the mortise portion 351, and being convenient to assemble.

Further, the mortise-eye fitting 35 is an elastic fitting. The mortise fitting piece 35 has elasticity, the tenon portion 322 and the mortise portion 351 can be more tightly inserted, the tenon fitting piece 32 and the mortise fitting piece 35 can be restrained to a certain extent in the inserting direction, and then the shield door body 2 can also cope with the vibration generated by the outside along the opening and closing direction. In addition, the elastic fitting piece can avoid noise generated by vibration after the elastic fitting piece is inserted into the tenon fitting piece 32.

In some embodiments, the pressure plate 34 is a metal plate having the same cross-sectional shape as the mortise mating element 35. The mortise-eye fitting 35 is made of nonmetallic materials such as nylon or rubber. The second fitting penetration 352 is a pair of vertically disposed transverse kidney holes. The body perforations 12 in the shield body 1 are a pair of vertically arranged threaded holes. The second attachment assembly 36 includes a threaded fastener and a washer, with a set of threaded fasteners threaded through the washer, platen aperture 341 and second mating member aperture 352 in sequence, threadably securing with the body aperture 12.

As shown in fig. 3 and 5, specifically, the tenon portion 322 is formed as a tapered tenon portion gradually narrowed in the protruding direction, and the mortise portion 351 is formed as a tapered mortise portion gradually narrowed in the recessed direction. Tenon portion 322 and mortise portion 351 are in conical surface contact, and the conical surface contact is easy to align and connect tightly, thereby facilitating installation of tenon mating piece 32 and mortise mating piece 35, and providing more reliable support for shield door body 2.

Further, the tapered tenon portion is provided with a first tapered surface 3221 and a second tapered surface 3222 in sequence along the extending direction, and an angle of the first tapered surface 3221 is smaller than an angle of the second tapered surface 3222. The large-angle second taper 3222 plays a guiding role, so that the plug-in process of the tenon matching piece 32 and the mortise matching piece 35 is smoother.

In some embodiments, the dovetail portion 322 is a boss with two-sided tapered upper and lower surfaces, with the included angle of the first tapered surface 3221 being selected to be 10 ° and the included angle of the second tapered surface 3222 being selected to be 64 °. Mortise 351 is a groove with conical upper and lower surfaces, and the included angle of the conical surfaces is 10 degrees. Tenon head 322 inserts mortise 351, and the conical surface contact provides the support in upper and lower direction and the restriction in other directions for guard shield door body 2, makes guard shield door body 2 can deal with the irregular vibration from each direction, reaches the effect that prevents guard shield door body 2 hinge early fatigue wear, improves guard shield door body 2 reliability.

In the description of the present application, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means 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 present application. In this specification, schematic representations of the above terms are not necessarily directed 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, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.

Claims (10)

1. A shield for a construction machine, comprising:

A shield main body (1), wherein a main body cover opening (11) is formed on the outer wall of the shield main body (1);

The shield door body (2) is used for opening and closing the main body cover opening (11), two ends of the shield door body (2) are respectively formed into a door body hinged end and a door body free end correspondingly, and the door body hinged end is hinged with the shield main body (1); and

The door support mechanism (3) comprises a first matching structure connected to the free end of the door body and a second matching structure connected to the shield main body (1), wherein the shield door body (2) is closed in the state of the main body cover opening (11), and the first matching structure and the second matching structure can form mortise-tenon matching to support the shield door body (2).

2. The shield for construction machine according to claim 1, wherein a tenon portion (322) extending and arranged perpendicular to the shield door body (2) is provided in the first mating structure, and a mortise portion (351) arranged toward the main body cover opening (11) for allowing the tenon portion (322) to be inserted is provided in the second mating structure.

3. The shield for a construction machine according to claim 2, wherein the first mating structure comprises:

a seat board (31) connected with the free end of the door body and provided with a seat board perforation (311);

the tenon matching piece (32) comprises a mounting plate (321) and a tenon portion (322), wherein the mounting plate (321) is overlapped with the seat plate (31) and is provided with a first matching piece perforation (323) aligned with the seat plate perforation (311), and the tenon portion (322) is vertically connected with the mounting plate (321);

And the first penetrating component (33) sequentially penetrates through the first matching piece perforation (323) and the seat board perforation (311).

4. A shield for a construction machine according to claim 3, wherein the first fitting penetration hole (323) is formed as a vertical kidney-shaped hole provided extending vertically.

5. A shield for a construction machine according to claim 2, wherein the shield body (1) is provided with a body perforation (12), the second mating structure comprising:

a platen (34) provided with platen perforations (341);

The mortise matching piece (35) is in compression joint between the pressing plate (34) and the shield main body (1), the mortise matching piece (35) is provided with the mortise part (351) and a second matching piece perforation (352), and the pressing plate perforation (341), the second matching piece perforation (352) and the main body perforation (12) are aligned in sequence;

and a second penetrating component (36) penetrating the pressing plate perforation (341), the second matching piece perforation (352) and the main body perforation (12) in sequence.

6. A shield for a construction machine according to claim 5, wherein the second mating member perforations (352) are formed as transverse kidney-shaped holes extending in a transverse direction.

7. A shield for a construction machine according to claim 5, wherein the mortise-and-tenon engagement member (35) is an elastic engagement member.

8. A shield for construction machinery according to any one of claims 2 to 7, wherein the tenon portion (322) is formed as a tapered tenon portion (322) gradually narrowed in an extending direction, and the mortise portion (351) is formed as a tapered mortise portion (351) gradually narrowed in a recessed direction.

9. The shield for construction machine according to claim 8, wherein the tapered tenon portion (322) is provided with a first tapered surface (3221) and a second tapered surface (3222) in order along the extending direction, and an angle of the first tapered surface (3221) is smaller than an angle of the second tapered surface (3222).

10. A construction machine comprising a shield for a construction machine according to any one of claims 1 to 9.