Engineering machinery engine hood

Abstract

An engineering machinery engine hood comprises a top cover, a front baffle and a connecting rod. The bottom edge of the front baffle is rotationally arranged at the front end of a chassis of the engineering machinery; the rear end of the top cover is rotationally connected to a portal frame arranged on the chassis, the rotating axis of the top cover and the rotating axis of the front baffle are parallel and are both parallel to the width direction of the chassis, and the distance between the rotating axis of the top cover and the top face of the chassis is larger than the height of the front baffle. The connecting rod vertically penetrates through the upper end of the front baffle, the front end of the connecting rod is of a screw rod structure, and a limiting disc is arranged at the rear end of the connecting rod; the portal frame is provided with a cross beam which is provided with a threaded hole; during assembly, the screw rod structure at the front end of the connecting rod is connected to the threaded hole, the front baffle is perpendicular to the chassis, the limiting disc is pressed on the outer wall of the front baffle, the top cover is in a horizontal state, the front end face of the top cover is pressed on the inner wall of the front baffle, and the bottom face of the top cover is supported on the connecting rod. According to the scheme, the engine hood is designed into a split type assembly structure, is convenient to disassemble and assemble and can be operated by a single person.

Description

Technical Field

[0001] The utility model belongs to the technical field of engineering vehicle engine hood structures, in particular to an engineering machinery engine hood. Background Art

[0002] The engines of construction machinery, such as drilling machines, anchor bolters, and lifts, are usually installed at the front end of the chassis, and in order to obtain better passability, the installation height of the engine of such construction machinery will be much higher than the chassis. In order to protect the engine, a larger protective cover is usually installed on the chassis to cover the engine. Most of the existing engine protective covers are integral structures and are very bulky. When the engine needs to be repaired and maintained, it is necessary to use lifting equipment or the cooperation of multiple people to remove the protective cover, which makes the engine maintenance process of such construction machinery more cumbersome and difficult. Although there are also protective covers installed with a hinged structure, the protective cover is still a one-piece structure design, and it is also difficult for a single person to flip the protective cover open. Utility Model Content

[0003] In order to solve the deficiencies of the prior art, the utility model provides an engineering machinery engine hood, which is designed as a split assembly structure, is convenient for assembly and disassembly, and can be operated by a single person.

[0004] In order to achieve the purpose of this utility model, the following scheme is proposed:

[0005] An engineering machinery engine hood comprises: a top cover, a front baffle and a connecting rod;

[0006] The bottom edge of the front baffle is rotatably arranged at the front end of the chassis of the engineering machinery;

[0007] The rear end of the top cover is rotatably connected to the gantry provided on the chassis. The rotation axis of the top cover is parallel to the rotation axis of the front baffle and is parallel to the width direction of the chassis. The distance between the rotation axis of the top cover and the top surface of the chassis is greater than the height of the front baffle.

[0008] The connecting rod is vertically installed on the upper end of the front baffle, the front end of the connecting rod is a screw structure, and the rear end of the connecting rod is provided with a limit plate;

[0009] The gantry is provided with a crossbeam, on which threaded holes are opened;

[0010] During assembly, the screw structure at the front end of the connecting rod is connected to the threaded hole, the front baffle is perpendicular to the chassis, the limit plate is pressed against the outer wall of the front baffle, the top cover is horizontal, the front end surface of the top cover is pressed against the inner wall of the front baffle, and the bottom surface of the top cover is supported on the connecting rod.

[0011] The beneficial effects of the present invention are:

[0012] 1. This solution designs the engine hood into two independent parts: the front baffle and the top cover, and both parts adopt a rotating installation structure. Ultimately, only one connecting rod is used to lock and fix the front baffle and the top cover together. It can be operated by one person and the operation is simple.

[0013] 2. After flipping open, the front baffle can be used as an operating platform, providing maintenance personnel with a larger operating space and making engine maintenance more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present invention.

[0015] Figure 1 The figure shows the overall structure of the engine hood of the present application.

[0016] Figure 2 A cross-sectional view of the engine hood of the present application in an assembled state is shown.

[0017] Figure 3 Shown is a bottom view of the top cover in the assembled state.

[0018] Figure 4 A schematic diagram showing the state of the engine hood of the present application after opening is shown.

[0019] Markings in the figure: top cover-1, clamping plate-11, front baffle-2, pressure plate-21, reinforcing rib-22, connecting rod-3, limit plate-31, elastic pad-32, gantry-4, crossbeam-41, threaded hole-411. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the implementation methods of the present invention are described in detail below with reference to the accompanying drawings. However, the embodiments described in the present invention are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] like Figures 1 to 4 As shown, an engineering machinery engine hood includes: a top cover 1, a front baffle 2 and a connecting rod 3.

[0022] The bottom edge of the front baffle 2 is rotatably arranged at the front end of the chassis of the engineering machinery.

[0023] The rear end of the top cover 1 is rotatably connected to the gantry 4 set on the chassis. The rotation axis of the top cover 1 is parallel to the rotation axis of the front baffle 2, and both are parallel to the width direction of the chassis. The distance between the rotation axis of the top cover 1 and the top surface of the chassis is greater than the height of the front baffle 2.

[0024] The connecting rod 3 is vertically passed through the upper end of the front baffle 2 , the front end of the connecting rod 3 is a screw structure, and the rear end of the connecting rod 3 is provided with a limit plate 31 .

[0025] The gantry 4 is provided with a crossbeam 41 , and a threaded hole 411 is opened on the crossbeam 41 .

[0026] During assembly, the screw structure at the front end of the connecting rod 3 is connected to the threaded hole 411, the front baffle 2 is perpendicular to the chassis, the limit plate 31 is pressed against the outer wall of the front baffle 2, and the top cover is horizontal. The horizontal here does not mean absolutely horizontal. As a preferred structure, the front end of the top cover 1 can be slightly tilted downward to facilitate drainage and improve the visibility of the cab. The front end of the top cover 1 is pressed against the inner wall of the front baffle 2, and the bottom surface of the top cover 1 is supported on the connecting rod 3.

[0027] This solution splits the existing integrated protective cover into two separate structures: the front baffle 2 and the top cover 1. These are mounted separately using a rotating mechanism. This single structure is lighter and can be easily opened and closed even by one person. To open the cover, first rotate the connecting rod 3 to loosen the pressure between the front baffle 2 and the top cover 1. Then, flip the top cover 1 upward to prevent it from falling when removing the connecting rod 3. Connecting rod 3 is then rotated further to disengage the screw structure at its front end from the threaded hole 411. Finally, the front baffle 2 is flipped open toward the front of the chassis, exposing the engine for easier maintenance. During assembly, the front baffle 2 must be rotated upward first to connect the screw structure at the front end of the connecting rod 3 to the threaded hole 411, and then the top cover 1 must be rotated downward so that the top cover 1 rests on the connecting rod 3. Finally, the connecting rod 3 is tightened, and the inner wall of the front baffle 2 is used to press the front end of the top cover 1, and the limit plate 31 is used to press the outer wall of the front baffle 2. Preferably, in an actual solution, tool boxes, water tanks or various winch structures can be tested on both sides of the engine hood to improve the utilization rate of the chassis space, which can be used to cover both sides of the engine and protect the engine at the same time.

[0028] Preferably, Figure 1 、 Figure 2 As shown, a pressure plate 21 is provided on the top surface of the front end of the front baffle 2, and one side of the pressure plate 21 protrudes from the inner wall of the front baffle 2. When the engine hood is assembled, the pressure plate 21 is located above the front end of the top cover 1, and is used to limit the front end of the top cover 1 to prevent the top cover 1 from moving upward.

[0029] Preferably, Figure 2 、 Figure 4 As shown, a plurality of clamping plates 11 are provided on the bottom surface of the top cover 1 , and a clamping slot is provided at the bottom of the clamping plate 11 . When the engine hood is assembled, the clamping slot is clamped on the connecting rod 3 .

[0030] Preferably, Figure 2As shown, an elastic pad 32 is provided on the connecting rod 3, and the elastic pad 32 is located between the limit plate 31 and the outer wall of the front baffle 2, and is used to increase the friction between the limit plate 31 and the front baffle 2 and reduce the vibration between the front baffle 2 and the connecting rod 3, thereby preventing the screw at the front end of the connecting rod 3 from loosening. The elastic pad 32 is usually made of rubber and can also be set to a disc spring structure or a cylindrical spring structure.

[0031] Preferably, the length of the connecting rod 3 is greater than the distance between the top surface of the chassis and the ground, the length of the screw structure at the front end of the connecting rod 3 is greater than one-third of the length of the connecting rod, and the minor diameter of the screw structure is greater than the outer diameter of the rear end of the connecting rod 3. The mounting hole of the front baffle 2 for passing the connecting rod 3 is a screw hole structure for matching the screw structure at the front end of the connecting rod 3. Figure 4 As shown, with this design, the front baffle 2 can be set to a horizontal position after being flipped open. The screw structure at the front end of the connecting rod 3 cooperates with the screw hole structure on the front baffle 2, and the rear end of the connecting rod 3 supports the ground. By rotating the connecting rod 3, the support height of the front baffle 2 can be adjusted. The connecting rod 3 adopts a manual rotation structure, which is easy to operate. This solution uses the front baffle 2 to form a working platform at the front end of the chassis, which can be used by maintenance personnel to stand and facilitate engine maintenance.

[0032] Preferably, Figure 4 As shown, a plurality of reinforcing ribs 22 are provided inside the front baffle 2 to improve the structural strength of the front baffle 2 .

[0033] The above description is only a preferred embodiment of the present invention and does not represent the only embodiment or limit the present invention. It should be understood by those skilled in the art that various changes or equivalent replacements made to the present invention without departing from the scope of the present invention are within the scope of protection of the present invention.

Claims

1. An engine hood for an engineering machinery, characterized in that: include: Top cover (1), front baffle (2) and connecting rod (3); The bottom edge of the front baffle (2) is rotatably arranged at the front end of the chassis of the engineering machinery; The rear end of the top cover (1) is rotatably connected to a gantry (4) provided on the chassis, the rotation axis of the top cover (1) is parallel to the rotation axis of the front baffle (2), and both are parallel to the width direction of the chassis, and the distance between the rotation axis of the top cover (1) and the top surface of the chassis is greater than the height of the front baffle (2); The connecting rod (3) is vertically passed through the upper end of the front baffle (2), the front end of the connecting rod (3) is a screw structure, and the rear end of the connecting rod (3) is provided with a limit plate (31); The gantry (4) is provided with a crossbeam (41), and a threaded hole (411) is provided on the crossbeam (41); During assembly, the screw structure at the front end of the connecting rod (3) is connected to the threaded hole (411), the front baffle (2) is perpendicular to the chassis, the limiting plate (31) is pressed against the outer wall of the front baffle (2), the top cover is in a horizontal state, the front end surface of the top cover (1) is pressed against the inner wall of the front baffle (2), and the bottom surface of the top cover (1) is supported on the connecting rod (3).

2. The engineering machinery engine hood according to claim 1, characterized in that: A pressure plate (21) is provided on the top surface of the front end of the front baffle (2), and one side of the pressure plate (21) protrudes from the inner wall of the front baffle (2). When the engine hood is assembled, the pressure plate (21) is located above the front end of the top cover (1).

3. The engineering machinery engine hood according to claim 1, characterized in that: The bottom surface of the top cover (1) is provided with a plurality of clamping plates (11), and the bottom of the clamping plates (11) is provided with clamping slots. When the engine cover is assembled, the clamping slots are clamped on the connecting rods (3).

4. The engineering machinery engine hood according to claim 1, characterized in that: An elastic pad (32) is sleeved on the connecting rod (3), and the elastic pad (32) is located between the limiting plate (31) and the outer wall of the front baffle (2).

5. The engineering machinery engine hood according to claim 1, characterized in that: The length of the connecting rod (3) is greater than the distance between the top surface of the chassis and the ground, the length of the screw structure at the front end of the connecting rod (3) is greater than one-third of the length of the connecting rod, and the minor diameter of the screw structure is greater than the outer diameter of the rear end of the connecting rod (3), and the mounting hole of the front baffle (2) for passing the connecting rod (3) is a screw hole structure for matching the screw structure at the front end of the connecting rod (3).

6. The engineering machinery engine hood according to claim 1 or 5, characterized in that: A plurality of reinforcing ribs (22) are provided inside the front baffle (2).

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