Hood connecting mechanism and bulldozer

Abstract

The utility model discloses a hood connecting mechanism and a bulldozer, comprising: a chute mounting seat connected with a front hood and provided with a connecting groove; a positioning bulge matched with the connecting groove is arranged in the nylon positioning plate; the spring steel piece is connected with the upper machine cover, the spring steel piece is in surface contact with the nylon positioning plate, and the nylon positioning plate can slide on the spring steel piece and is limited. According to the hood connecting mechanism, the sliding groove installation base is connected with the front hood, the spring steel piece is connected with the upper hood, then the nylon positioning plate is installed between the sliding groove installation base and the spring steel piece, and the nylon positioning plate and the sliding groove installation base are connected in a matched mode through the groove and the protrusion, so that the damping and limiting effects are achieved; the nylon positioning plate can slide for a certain distance on the spring steel piece, vibration between the front hood and the upper hood of the bulldozer is buffered, the mechanical structure of the bulldozer is prevented from being damaged by vibration, the structure is simple, and stability is good.

Description

Technical Field

[0001] The utility model relates to a hood connecting mechanism and a bulldozer, belonging to the technical field of bulldozers. Background Art

[0002] During the working process, the bulldozer is impacted by the ground and the work object, which will produce large vibrations. The hood and the side panels of most bulldozers are hard-connected by multiple bolts, lacking corresponding limit or shock-absorbing mechanisms. Strong vibrations will cause excessive deformation of the hood and the side panels of the hood, even exceeding 15mm. If the gap between the front hood and the upper hood side panels is very small, the deformation caused by the vibration impact will cause the hood to collide, and will also cause irreversible damage to the mechanical structure; if the gap between the front hood and the upper hood is too large, the noise in the power compartment will be directly radiated into the air due to poor sealing. At the same time, severe vibrations will also cause misalignment and even cracking between the hoods, affecting work efficiency and the service life of the bulldozer. Summary of the invention

[0003] In view of the problems existing in the above-mentioned prior art, the utility model provides a hood connecting mechanism and a bulldozer, which can reduce or even eliminate the harm caused by vibration to the bulldozer.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts a hood connection mechanism, comprising:

[0005] A slide groove mounting seat, the slide groove mounting seat is connected to the front hood, and a connecting groove is provided on the slide groove mounting seat;

[0006] A nylon positioning plate, wherein a positioning protrusion cooperating with the connecting groove is provided in the nylon positioning plate;

[0007] A spring steel piece is connected to the upper machine cover, the spring steel piece and the nylon positioning plate are in surface contact, and the nylon positioning plate can slide and limit on the spring steel piece.

[0008] As an improvement, it further comprises a reinforcing plate, wherein the reinforcing plate is installed on the spring steel member.

[0009] As an improvement, the slide groove mounting seat is T-shaped, and consists of a mounting plate and a connecting plate, and the connecting plate is provided with the connecting groove facing the center of the vehicle body.

[0010] As an improvement, the mounting plate is connected to the front hood via bolts.

[0011] As an improvement, the nylon positioning plate is U-shaped, with a positioning groove inside, the positioning protrusion inside the positioning groove, and the positioning protrusion is tightly attached to the connecting groove.

[0012] As an improvement, the spring steel part is a special-shaped structure, including a first steel plate for connecting to the upper hood and a second steel plate for connecting to the nylon positioning plate, and a bending portion is provided between the first steel plate and the second steel plate.

[0013] As an improvement, a plurality of reinforcing steel plates are provided on the first steel plate and the second steel plate.

[0014] As an improvement, the first steel plate is connected to the upper hood by bolts.

[0015] As an improvement, the connecting groove is square or semicircular, and the shape of the positioning protrusion matches the shape of the connecting groove.

[0016] In addition, the utility model also provides a bulldozer, on which the hood connecting mechanism is installed.

[0017] Compared with the prior art, the hood connecting mechanism of the utility model is connected to the front hood through a slide groove mounting seat, connected to the upper hood through a spring steel part, and then a nylon positioning plate is installed between the slide groove mounting seat and the spring steel part. The nylon positioning plate and the slide groove mounting seat are connected by grooves and protrusions, which play a role of shock absorption and limiting. When the bulldozer is working, the nylon positioning plate can slide a certain distance on the spring steel part to buffer the vibration between the front hood and the upper hood of the bulldozer and avoid damage to the mechanical structure of the bulldozer caused by vibration. The structure is simple and the stability is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the slide groove mounting seat of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the nylon positioning plate of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the reinforcement plate of the utility model;

[0023] Figure 5 It is a structural schematic diagram of the spring steel component of the utility model;

[0024] Figure 6This is a schematic diagram of the installation structure of the utility model;

[0025] In the figure: 1. slide groove mounting seat, 11. mounting plate, 12. connecting plate, 13. connecting groove, 14. mounting hole, 2. nylon positioning plate, 21. positioning groove, 22. positioning protrusion, 3. reinforcement plate, 31. reinforcement plate connecting hole, 4. spring steel part, 41. first steel plate, 42. bending part, 43. second steel plate, 44. reinforcement steel plate, 45. spring steel connecting hole, 5. front hood, 6. upper hood. DETAILED DESCRIPTION

[0026] In order to make the objectives, technical solutions and advantages of the present invention more clear, the technical solutions of the present application are described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of the present application and the specific features in the embodiments are detailed descriptions of the technical solutions of the present application, rather than limitations on the technical solutions of the present application. In the absence of conflict, the embodiments of the present application and the technical features in the embodiments can be combined with each other.

[0027] like Figure 1-Figure 6 As shown, a hood connection mechanism comprises:

[0028] A slide groove mounting seat 1, wherein the slide groove mounting seat 1 is connected to the front hood 5, and a connecting groove 13 is provided on the slide groove mounting seat 1;

[0029] A nylon positioning plate 2, wherein a positioning protrusion 22 is provided inside the nylon positioning plate 2, and the positioning protrusion 22 is cooperatively connected with the connecting groove 13 to achieve the effects of shock absorption and position limiting;

[0030] The spring steel member 4 is connected to the upper hood 6 , the spring steel member 4 and the nylon positioning plate 2 are in surface contact, and the nylon positioning plate 2 can slide a certain distance on the spring steel member 4 and be limited by the spring steel member 4 .

[0031] As an improvement of the embodiment, Figure 1 , Figure 4 and Figure 6 As shown, the hood connection mechanism also includes a reinforcing plate 3, which is bent into an L shape, with an arc transition at the bending point, a reinforcing plate connecting hole 31 is opened on the reinforcing plate 3, and the reinforcing plate 3 is installed on the spring steel part 4 to prevent the spring steel from being deformed too much; by adopting a combination of spring steel and the reinforcing plate 3, the problem of excessive torque between the hood and the hood side plate due to working vibration, and excessive deformation of the upper hood under load can be solved, thereby extending the life of the bulldozer upper hood.

[0032] As an improvement of the embodiment, Figure 2As shown, the slide groove mounting seat 1 is T-shaped, and consists of a mounting plate 11 and a connecting plate 12. The connecting plate 12 is provided with a connecting groove 13 facing the center of the vehicle body, and a mounting hole 14 is opened on the mounting plate 11. The mounting plate 11 is connected to the front hood 5 by bolts, which is convenient for disassembly and assembly. The mounting hole 14 is preferably an oblong hole.

[0033] As an improvement of the embodiment, Figure 1 , Figure 2 and Figure 3 As shown, the nylon positioning plate 2 is U-shaped, with a positioning groove 21 provided inside, and the positioning protrusion 22 provided inside the positioning groove 21, and the positioning protrusion 22 is tightly attached to the connecting groove 13. The thickness of the connecting plate 12 is smaller than the height of the positioning groove 21 on the nylon positioning plate 2, so as to ensure that the connecting groove 13 can be installed in the positioning groove 21 and tightly attached to the positioning protrusion 22, so as to play the role of shock absorption and position limiting. When the bulldozer is working, the nylon positioning plate 2 can buffer the vibration between the front hood and the upper hood of the bulldozer.

[0034] As an improvement of the embodiment, Figure 5 As shown, the spring steel part 4 is a special-shaped structure, including a first steel plate 41 for connecting the upper hood 6 and a second steel plate 43 for connecting the nylon positioning plate 2. The bottom of the nylon positioning plate 2 is in surface contact with the second steel plate 43. A bending portion 42 is provided between the first steel plate 41 and the second steel plate 43. A plurality of reinforcing steel plates 44 are provided on the first steel plate 41 and the second steel plate 43. The structure has high strength and good stability.

[0035] As an improvement of the embodiment, Figure 1 , Figure 2 and Figure 3 As shown, the first steel plate 41 is provided with a spring steel connection hole 45, and the first steel plate 41 is connected to the upper hood 6 by bolts, which is convenient for assembly and disassembly. At the same time, the reinforcing plate 3 is connected to the first steel plate 41 by bolts, and is connected to the upper hood 6 together.

[0036] As an improvement of the embodiment, Figure 2 As shown, the connecting groove 13 is square or semicircular, which is easy to process; the shape of the positioning protrusion 22 matches the shape of the connecting groove 13, ensuring that the slide groove mounting seat 1 and the nylon positioning plate 2 fit tightly.

[0037] Finally, the utility model also provides a bulldozer, on which the hood connecting mechanism is installed. Preferably, the hood connecting mechanism is symmetrically arranged relative to the center of the vehicle body, which has a better use effect.

[0038] When the bulldozer is working, the hood is transferred to the front hood 5 of the bulldozer through the hydraulic cylinder under the action of the bulldozer load, and the front hood 5 will be displaced in the forward direction of the vehicle, and the slide groove mounting seat 1 will be displaced in the front and rear directions along with the front hood 5. Correspondingly, the connecting groove 13 will push the positioning protrusion 22 on the nylon positioning plate 2 to produce the same displacement; the nylon positioning plate 2 is placed on the spring steel member 4, and the nylon positioning plate 2 can produce a small distance relative movement on the second steel plate 43 of the spring steel member 4. The first steel plate 41 of the spring steel member 4 and the upper hood 6 of the bulldozer are connected by bolts, and no relative movement will occur, which completely eliminates the collision between the front hood 5 and the upper hood 6;

[0039] When the upper hood 6 of the bulldozer is subjected to a vertical load, the load is transmitted to the spring steel part 4 through the nylon positioning plate 2. Since the spring steel part 4 is in surface contact with the reinforcing plate 3, with the rigid support of the reinforcing plate 3, the vertical displacement of the upper hood 6 and the deformation of the upper hood of the bulldozer are eliminated, thereby extending the service life of the upper hood of the bulldozer.

[0040] The hood connecting mechanism of the utility model is connected to the front hood through a slide groove mounting seat, connected to the upper hood through a spring steel member, and then a nylon positioning plate is installed between the slide groove mounting seat and the spring steel member. The nylon positioning plate and the slide groove mounting seat are connected through grooves and protrusions, which play a role of shock absorption and limiting. When the bulldozer is working, the nylon positioning plate can slide on the spring steel member for a certain distance to buffer the vibration between the front hood and the upper hood of the bulldozer, thereby avoiding damage to the mechanical structure of the bulldozer caused by the vibration. The structure is simple and the stability is good.

[0041] In addition, those skilled in the art will understand that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments also means being within the scope of protection of the present utility model and forming different embodiments. For example, in the above embodiments, those skilled in the art can use them in combination according to the known technical solutions and the technical problems to be solved by the present application.

Claims

1. A hood connection mechanism, characterized in that: include: A slide groove mounting seat (1), wherein the slide groove mounting seat (1) is connected to the front hood (5), and a connecting groove (13) is provided on the slide groove mounting seat (1); A nylon positioning plate (2), wherein a positioning protrusion (22) cooperating with the connecting groove (13) is provided in the nylon positioning plate (2); A spring steel piece (4) is connected to an upper machine cover (6), the spring steel piece (4) and a nylon positioning plate (2) are in surface contact, and the nylon positioning plate (2) can slide and limit on the spring steel piece (4).

2. A hood connection mechanism according to claim 1, characterized in that: It also comprises a reinforcing plate (3), wherein the reinforcing plate (3) is mounted on the spring steel member (4).

3. A hood connection mechanism according to claim 1, characterized in that: The slide groove mounting seat (1) is T-shaped and consists of a mounting plate (11) and a connecting plate (12). The connecting plate (12) is provided with the connecting groove (13) facing the center of the vehicle body.

4. A hood connection mechanism according to claim 3, characterized in that: The mounting plate (11) is connected to the front hood (5) via bolts.

5. The hood connection mechanism according to claim 1, characterized in that: The nylon positioning plate (2) is U-shaped and has a positioning groove (21) inside. The positioning groove (21) is provided with the positioning protrusion (22), and the positioning protrusion (22) is tightly attached to the connecting groove (13).

6. A hood connection mechanism according to claim 1, characterized in that: The spring steel member (4) is a special-shaped structure, comprising a first steel plate (41) for connecting to the upper hood (6) and a second steel plate (43) for connecting to the nylon positioning plate (2), wherein a bending portion (42) is provided between the first steel plate (41) and the second steel plate (43).

7. A hood connection mechanism according to claim 6, characterized in that: A plurality of reinforcing steel plates (44) are provided on the first steel plate (41) and the second steel plate (43).

8. A hood connection mechanism according to claim 6 or 7, characterized in that: The first steel plate (41) is connected to the upper hood (6) via bolts.

9. The hood connection mechanism according to claim 1, characterized in that: The connecting groove (13) is square or semicircular, and the shape of the positioning protrusion (22) matches the shape of the connecting groove (13).

10. A bulldozer, characterized in that: The bulldozer is equipped with a hood connection mechanism as described in any one of claims 1 to 9.

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