Bulldozer cab front grille opening and closing structure

Abstract

The utility model relates to bulldozer machine cover technical field, concretely relates to bulldozer machine cover front guard grating open and shut structure, bulldozer machine cover front guard grating open and shut structure, including machine cover body, the opening of hole is set up in machine cover body front end surface, machine cover body is provided with the front guard grating of covering the opening, its characterized in that, front guard grating includes side guard grating, two side guard grating are set up in the both sides of opening respectively, side guard grating is connected with machine cover body through bolt A, and the installation of opposite side guard grating is convenient to dismantle and remove; Side guard grating is provided with the hinged seat of fixed structure mode, the hinged seat is rotatably connected with hinged arm through pin shaft, the hinged arm is provided with mounting plate through detachable structure, and the mounting plate is connected with middle guard grating with fixed structure mode, and middle guard grating is set up between two side guard grating, and the split type structure of middle guard grating and side guard grating is designed to front grating, can satisfy original protection, heat dissipation's function, can also avoid middle guard grating to be blocked by lifting cylinder, opens front grating and maintains the parts inside the guard cover.

Description

Technical Field

[0001] This utility model relates to the field of bulldozer hood technology, specifically to the opening and closing structure of the front guard grille of a bulldozer hood. Background Technology

[0002] A bulldozer is an earthmoving machine capable of excavating, transporting, and dumping soil and rock, and it has a wide range of applications in open-pit mines. For example, it is used to construct spoil heaps, level truck spoil heaps, stockpile loose ore, level working platforms, and construct sites. It is used not only for auxiliary work but also for primary mining operations.

[0003] The blade is lifted by a lifting cylinder. Currently, there are generally two ways to connect the lifting cylinder to the frame: the first is to install it on the front side of both sides of the frame, such as the appearance design patent with application number CN202030051646.9 for bulldozers; the second is to install the lifting cylinder at the front of the frame, such as the appearance design patent of our company with application number CN202430391799.6 for bulldozers with static pressure high drive.

[0004] The front of the machine hood houses a cooling device, the opening of which is sealed by a front guard grille. When maintaining the cooling device, the front guard grille needs to be opened. However, in the second installation method, the front guard grille cannot be fully opened due to obstruction by the lifting cylinder, hindering the worker's maintenance. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides an opening and closing structure for the front guardrail of a bulldozer hood. The technical problem it solves is that the front guardrail cannot be fully opened, affecting the maintenance and repair of internal components. The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0006] A bulldozer hood front guard opening and closing structure includes a hood body, an opening on the front end face of the hood body, and a front guard covering the opening on the hood body. The front guard includes:

[0007] Side guardrails are installed on both sides of the opening and connected to the machine cover body by bolts A.

[0008] The hinged base is connected to the side guardrail in a fixed structure.

[0009] The articulated arm and the pin are rotatably connected to the articulated seat via the pin.

[0010] Mounting plate, which is connected to the hinge arm via a detachable structure;

[0011] The middle guardrail is connected to the mounting plate by a fixed structure and is set between the two side guardrails.

[0012] Furthermore, both the hinge arm and the mounting plate are provided with grooves for connecting detachable structures;

[0013] The detachable structure includes bolt B and nut, with the shank of bolt B passing through a groove and connected to the nut.

[0014] Furthermore, there are two bolts B.

[0015] Furthermore, bolt B is fitted with a washer.

[0016] Furthermore, a reinforcing plate is provided between the mounting plate and the central guardrail in a fixed structure.

[0017] Furthermore, the side guardrail includes a left guardrail and a right guardrail, both of which are fixedly connected to two hinge seats.

[0018] Furthermore, the left side guard, right side guard, and middle guard all have heat dissipation holes.

[0019] The beneficial effects of this utility model are as follows: the front grille is designed as a split structure, which can not only satisfy the original functions of protection and heat dissipation, but also avoid the middle guard grille being blocked by the lifting cylinder, and open the front grille to repair and maintain the components inside the guard.

[0020] The hinge structure formed by the hinge base, pin, and hinge arm is detachably connected to the middle guard grille, which facilitates the opening of the middle guard grille to the left or right independently. It can also enable the middle guard grille to drive the folding and opening of one of the side guard grilles. Multiple opening methods are available to meet the needs of maintenance and repair of different parts inside the machine cover, thus improving practicality. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0023] Figure 3 This is a utility model Figure 1 A schematic diagram of the enlarged structure A shown in the figure;

[0024] In the picture:

[0025] 1. Engine hood body; 2. Side guardrail; 21. Left side guardrail; 22. Right side guardrail; 3. Bolt A; 4. Hinge seat; 5. Hinge arm; 6. Pin; 7. Mounting plate; 8. Middle guardrail; 9. Bolt B; 10. Slide groove; 11. Reinforcing plate. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the utility model will now be described in further detail with reference to the accompanying drawings and the following embodiments, so that the public can better understand the implementation method of this utility model. The specific implementation scheme of this utility model is as follows:

[0027] A bulldozer hood front guard grille opening and closing structure includes a hood body 1, with an opening on the front end face of the hood body 1. The hood body 1 is equipped with a front guard grille covering the opening. The front guard grille includes side guard grilles 2, with the two side guard grilles 2 respectively located on both sides of the opening. The side guard grilles 2 are connected to the hood body 1 by bolts A3, facilitating disassembly and installation. The side guard grilles 2 are fixedly equipped with hinge seats 4, which are rotatably connected to hinge arms 5 via pins 6. The hinge arms 5 are detachably equipped with mounting plates 7, which are fixedly connected to a central guard grille 8. The central guard grille 8 is located between the two side guard grilles 2, and its width is less than the distance between the two lifting cylinders to meet the opening requirements. Designing the front grille as a separate structure of the central and side guard grilles not only fulfills the original protection and heat dissipation functions but also prevents the central guard grille from being blocked by the lifting cylinders, allowing for the opening of the front grille for maintenance and repair of the internal components of the hood.

[0028] It should be noted that both the hinge arm 5 and the mounting plate 7 are provided with a sliding groove 10 for connecting a detachable structure. The detachable structure includes a bolt B9 and a nut. The shank of the bolt B9 passes through the sliding groove 10 between the hinge arm 5 and the mounting plate 7 and is connected to the nut. If the internal maintenance problem can be solved simply by opening the middle guardrail 8, the nut of the bolt B9 can be unscrewed, and the connection between the mounting plate 7 on the left or right side and the hinge arm 5 can be opened, allowing the middle guardrail 8 to be opened to one side.

[0029] To prevent the central guardrail from rotating and deforming at bolt B, two bolts B9 are designed, and a washer is fitted on bolt B9 to improve the fastening effect.

[0030] It should be noted that a reinforcing plate 11 is fixed between the mounting plate 7 and the middle guardrail 8 to improve structural stability.

[0031] The side guardrail 2 includes a left guardrail 21 and a right guardrail 22, both of which are fixedly connected to two hinge seats 4.

[0032] It should be noted that the left guardrail 21, the right guardrail 22 and the middle guardrail 8 are all provided with heat dissipation holes to ensure that the cooling device has a large ventilation area.

[0033] The working principle and process of this utility model are as follows:

[0034] To meet the needs of different working conditions, the bulldozer's front hood guard has three opening methods, as detailed below:

[0035] When it is necessary to repair the parts inside the cover, the following describes the process of opening one side. Unscrew all bolts A3 at the left guard 21, rotate the left guard 21 to fold it to the side of the middle guard 8, and then rotate the middle guard 8 with the right pin 6 to open the left guard 21 and the middle guard 8. This reduces obstruction to the left side. Similarly, the right guard 22 and the middle guard 8 can also be opened.

[0036] In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "left," "right," "front," "rear," "lower left," "upper right," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Although this utility model has been described according to a limited number of embodiments, those skilled in the art should understand from the above description that other embodiments can be conceived within the scope of this utility model described herein.

Claims

1. A bulldozer hood front guardrail opening and closing structure, comprising a hood body (1), wherein the front end face of the hood body (1) has an opening, and the hood body (1) is provided with a front guardrail covering the opening, characterized in that, The front fender includes: Side guardrails (2), the two side guardrails (2) are respectively set on both sides of the opening and connected to the machine cover body (1) by bolts A (3); The hinge seat (4) is connected to the side guardrail (2) in a fixed structure manner; The hinge arm (5) and the pin (6) are rotatably connected to the hinge seat (4) through the pin (6); Mounting plate (7), which is connected to hinge arm (5) by a detachable structure; The middle guardrail (8) is connected to the mounting plate (7) in a fixed structure and is located between the two side guardrails (2).

2. The bulldozer hood front guardrail opening and closing structure according to claim 1, characterized in that: Both the hinge arm (5) and the mounting plate (7) are provided with grooves (10) for connecting detachable structures; The detachable structure includes a bolt B (9) and a nut, with the shank of the bolt B (9) passing through a groove (10) and connected to the nut.

3. The bulldozer hood front guardrail opening and closing structure according to claim 2, characterized in that: There are two bolts B (9).

4. The bulldozer hood front guardrail opening and closing structure according to claim 3, characterized in that: Bolt B (9) is fitted with a washer.

5. The bulldozer hood front guardrail opening and closing structure according to claim 1, characterized in that: A reinforcing plate (11) is provided between the mounting plate (7) and the middle guardrail (8) in a fixed structure.

6. The bulldozer hood front guardrail opening and closing structure according to claim 1, characterized in that: The side guardrail (2) includes a left guardrail (21) and a right guardrail (22), both of which are fixedly connected to two hinge seats (4).

7. The bulldozer hood front guardrail opening and closing structure according to claim 1, characterized in that: The left side guardrail (21), the right side guardrail (22) and the middle guardrail (8) are all provided with heat dissipation holes.

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