Air guide device for diesel engine of agricultural machine

Abstract

The utility model relates to diesel engine technical field, and disclose an agricultural machinery diesel engine air guide device, including through bolt fixed connection in the surface of diesel engine air baffle, still include: fixedly connected in the surface of air baffle round frame, the front side of round frame is provided with the dust cover, encircle fixed in the dust cover outside surface a plurality of long strip, set up in the stretch structure between round frame and dust cover, the utility model discloses when not using air cooling diesel engine, with the force to dust cover to the outside, can drive long strip to rotate, make long strip can be located in the surface of air baffle hollow, thereby the air inlet of air baffle is sheltered, and then avoid the dust of outside to enter the inside of air baffle and influence diesel engine subsequent use, set up through the stretch structure simultaneously, after cancelling the force to dust cover, through the stretch tension of spring itself, can drive dust cover and long strip to be close to in the surface of air baffle, avoid dust cover and long strip when shielding being rotated randomly.

Description

Technical Field

[0001] This utility model relates to the field of diesel engine technology, specifically to a diesel engine air guide device for agricultural machinery. Background Technology

[0002] In diesel engine systems, airflow guides are primarily used to optimize airflow, enhance heat dissipation efficiency, and ensure the unit operates at a suitable temperature, thereby improving economy and durability. They guide cool air towards the radiator core and expel hot air, preventing heat buildup. Especially in engine room environments, they need to be designed in conjunction with fans to achieve effective ventilation.

[0003] Because air-cooled diesel engines generate a lot of heat during operation, air guide devices are often installed on the surface of the engine to facilitate heat dissipation. Current air guide devices use the rotation of a flywheel to allow outside air to enter through the air guide shroud to cool the diesel engine. However, when the diesel engine is not in use, external impurities can easily enter the air guide shroud through the air intake slots, causing blockages at the engine's air intake and thus affecting the cooling effect. Utility Model Content

[0004] The purpose of this utility model is to provide a diesel engine air guide device for agricultural machinery to solve the problems existing in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a diesel engine air guide device for agricultural machinery, comprising an air guide cover fixedly connected to the surface of the diesel engine by bolts, and further comprising:

[0006] A circular frame is fixedly connected to the surface of the air guide shroud, and a dust baffle is provided on the front side of the circular frame;

[0007] Several long strips are fixed around the outer surface of the dust cover;

[0008] A tension structure is set between the circular frame and the dust cover.

[0009] Preferably, the tensioning structure includes a first disc rotatably connected inside the circular frame and a second disc fixed inside the dust cover, with a spring fixed between the first disc and the second disc.

[0010] Preferably, a limiting block is fixedly connected to one side of the second disc, and a limiting groove is formed on the surface of the circular frame. There are two limiting grooves, and the surface of the limiting block and the interior of the limiting groove cooperate with each other.

[0011] Preferably, a slider is fixedly connected to the surface of the first disc, and the surface of the slider is slidably connected to the inside of the circular frame.

[0012] Preferably, a first locking block is fixedly connected to one side of the dust shield, and a second locking block is fixedly connected to both sides of the surface of the air guide cover.

[0013] Preferably, the length of the strip is the same as the length of the cutout on the surface of the air guide cover.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] When the air-cooled diesel engine is not in use, applying force to the dust baffle causes the long strip to rotate, positioning it at the openwork of the air guide shroud. This blocks the air inlet of the air guide shroud, preventing external dust from entering and affecting the subsequent operation of the diesel engine. Furthermore, the tension structure ensures that after the force on the dust baffle is released, the spring's tension keeps the dust baffle and the long strip firmly attached to the surface of the air guide shroud, preventing them from rotating arbitrarily during operation. Attached Figure Description

[0016] Figure 1 This is a left-side three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the unfolded three-dimensional structure of the middle dust cover of this utility model;

[0018] Figure 3 This is a schematic diagram of the unfolded left-side stereoscopic structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the unfolded three-dimensional structure of this utility model.

[0020] In the diagram: 1. Air guide cover; 2. Circular frame; 3. Dust shield; 4. Tension structure; 41. Disc 1; 42. Spring; 43. Disc 2; 5. Limiting block; 6. Slider; 7. Limiting groove; 8. Locking block 1; 9. Locking block 2; 10. Strip. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4As shown, a diesel engine air guide device for agricultural machinery includes an air guide shroud 1 fixedly connected to the surface of the diesel engine by bolts. A circular frame 2 is fixedly connected to the surface of the air guide shroud 1. A dust baffle 3 is provided on the front side of the circular frame 2. Several long strips 10 are fixedly arranged around the outer surface of the dust baffle 3. The length of the long strips 10 is the same as the length of the cutout on the surface of the air guide shroud 1. As the operator rotates the dust baffle 3, the long strips 10 can be completely fitted into the cutout of the air guide shroud 1 to improve the blocking effect. A tension structure 4 is provided between the circular frame 2 and the dust baffle 3. The tension structure 4 includes a disc 41 rotatably connected inside the circular frame 2. And a second disc 43 fixed inside the dust cover 3. A spring 42 is fixed between the first disc 41 and the second disc 43. Through the setting of the tension structure 4, when the device is idle, in order to prevent dust from entering the interior of the air guide shroud 1, the operator needs to apply force to the dust cover 3 outward, thereby driving the second disc 43 to move outward. As the second disc 43 moves outward, it drives the spring 42 to be stretched. Then the dust cover 3 is rotated, and then through the elasticity of the spring 42, the dust cover 3 is covered again on the surface of the air guide shroud 1 so as to block the hollow part on the surface of the air guide shroud 1, thereby preventing dust from entering the interior of the air guide shroud 1.

[0023] A limiting block 5 is fixedly connected to one side of the disc 2 43. A limiting groove 7 is opened on the surface of the circular frame 2, and there are two limiting grooves 7. The surface of the limiting block 5 and the inside of the limiting groove 7 are used in conjunction. With the setting of the limiting block 5 and the limiting groove 7, as the worker rotates the dust cover 3, the limiting groove 7 can play a limiting role in the dust cover 3.

[0024] A slider 6 is fixedly connected to the surface of the disc 41. The surface of the slider 6 is slidably connected to the inside of the circular frame 2. By setting the slider 6, as the disc 41 is inside the circular frame 2, the dust cover 3 can be rotated through the sliding connection between the slider 6 and the circular frame 2, so as to improve the stability during rotation.

[0025] A locking block 8 is fixedly connected to one side of the dust cover 3, and locking blocks 9 are fixedly connected to both sides of the surface of the air guide cover 1. By setting the locking blocks 8 and 9, when the staff needs to rotate the dust cover 3, the position of the limiting groove 7 can be determined by the position of the locking blocks 8 and 9, thereby playing a guiding role.

[0026] Working principle: When the cold-air diesel engine is not in use, residual dust in the air will enter the interior of the air guide 1 through the perforation. At this time, the operator needs to apply force to the dust baffle 3 outward. Then, the dust baffle 3 drives the disc 43 to move outward and stretches the spring 42 outward. During the stretching process, the dust baffle 3 is rotated, which drives the disc 43, the spring 42 and the disc 41 to rotate. Then, the disc 41 rotates inside the circular frame 2, and the strip 10 is rotated to the perforation of the air guide 1. Then, the force applied to the dust baffle 3 is released. Finally, the tension of the spring 42 itself can cover the strip 10 and the perforation of the air guide 1 to prevent external dust from entering the interior of the air guide 1. When using it in a later time, the above operation can be repeated to reverse the direction so that the perforation is exposed.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A diesel engine air guide device for agricultural machinery, comprising an air guide shroud (1) fixedly connected to the surface of the diesel engine by bolts, characterized in that, Also includes: A circular frame (2) is fixedly connected to the surface of the air guide hood (1), and a dust cover (3) is provided on the front side of the circular frame (2). Several long strips (10) are fixed around the outer surface of the dust cover (3); A tension structure (4) is provided between the circular frame (2) and the dust cover (3).

2. The air guide device for a diesel engine in agricultural machinery according to claim 1, characterized in that: The tension structure (4) includes a first disc (41) rotatably connected inside the circular frame (2) and a second disc (43) fixed inside the dust cover (3), with a spring (42) fixed between the first disc (41) and the second disc (43).

3. The air guide device for a diesel engine in agricultural machinery according to claim 2, characterized in that: A limiting block (5) is fixedly connected to one side of the second disc (43). A limiting groove (7) is opened on the surface of the circular frame (2), and there are two limiting grooves (7). The surface of the limiting block (5) and the interior of the limiting groove (7) are used in conjunction.

4. The air guide device for a diesel engine in agricultural machinery according to claim 2, characterized in that: A slider (6) is fixedly connected to the surface of the disk (41), and the surface of the slider (6) is slidably connected to the inside of the circular frame (2).

5. The air guide device for a diesel engine in agricultural machinery according to claim 1, characterized in that: One side of the dust shield (3) is fixedly connected to a locking block (8), and both sides of the surface of the air guide (1) are fixedly connected to locking blocks (9).

6. The air guide device for a diesel engine in agricultural machinery according to claim 1, characterized in that: The length of the strip (10) is the same as the length of the cutout on the surface of the air guide (1).

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