Lower protection device of engine

Abstract

The utility model relates to the technical field of mining automobiles, and discloses an engine lower protection device which comprises a mounting frame, and a plurality of groups of mounting positions are arranged on the mounting frame. The protection assembly is arranged on the mounting frame and used for protecting the engine, the protection assembly comprises an upper protection plate and a lower protection plate, the lower protection plate is arranged at the bottom end of the mounting frame and fixedly connected with the mounting frame, the upper protection plate is arranged at the upper end of the mounting frame, and the upper protection plate is fixedly connected with the mounting frame. The sputtering object impacts the lower protection plate at first, the sputtering object is blocked through the lower protection plate, when kinetic energy of the sputtering object is too large, secondary blocking is conducted on the sputtering object through the filling block, when the sputtering object penetrates through the secondary blocking, the sputtering object is blocked through the upper protection plate, and the kinetic energy of the sputtering object is consumed through multiple times of blocking. Therefore, irreversible damage to the bottom of the engine caused by the sputter is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of mining vehicles, and in particular relates to an under-engine protective device. Background Art

[0002] A document with a publication number of (CN220594827U) was retrieved and disclosed an under-engine protection device and a mining dump truck, comprising a main body, a connecting bracket and a reinforcement plate. The main body comprises a bottom protection part and a side protection part. The bottom protection part is narrow at the front end and wide at the rear end, and gradually transitions in the middle part. The side protection part is bent to fit the structure of the bottom protection part. A reserved opening is provided on the main body, and the reserved opening corresponds to the position of the oil drain port of the engine. A sealing plate corresponding to the reserved opening is provided on the side of the main body away from the engine, which is used to close the reserved opening. One end of the connecting bracket is connected to the main body and the reinforcement plate at the same time, and the other end is connected to the frame.

[0003] The device is provided with a sealing plate corresponding to the reserved opening on the side of the body away from the engine. The sealing plate is detachably connected to the body and is used to close the reserved opening. The provision of the reserved opening reduces the difficulty of engine maintenance.

[0004] The above-mentioned device absorbs and cushions external impacts through the coordination between components such as reinforcing ribs. However, in actual use, the working weight of a mining dump truck can reach 506,000 kg. The kinetic energy of stones and other splashing objects squeezed and ejected by this weight is extremely large. It is difficult to protect the bottom of the engine by the guard plate set on one side of the above-mentioned device.

[0005] In view of this, the present utility model is proposed. Utility Model Content

[0006] In order to solve the technical problem of low penetration resistance of single-layer guard plate, the basic concept of the technical solution adopted by the utility model is:

[0007] An engine under-protection device includes a mounting frame with multiple mounting positions; a protection component, which is arranged on the mounting frame and is used for protecting the engine. The protection component includes an upper guard plate and a lower guard plate, the lower guard plate is arranged at the bottom end of the mounting frame and is fixedly connected to the mounting frame, and the upper guard plate is arranged at the upper end of the mounting frame and is fixedly connected to the mounting frame.

[0008] As a preferred embodiment of the present invention, the lower guard plate is provided with multiple groups of holes, the upper guard plate is provided with multiple groups of through slots, and the upper guard plate and the lower guard plate are connected to the mounting frame via fasteners.

[0009] As a preferred embodiment of the present invention, a filling block is provided between the upper guard plate and the lower guard plate, and the filling block is fixedly connected to the mounting frame.

[0010] As a preferred embodiment of the present invention, the filling block is wavy in shape as a whole, and there is a gap between the side of the filling block and the mounting frame.

[0011] As a preferred embodiment of the present invention, the through grooves on the upper guard plate and the holes on the lower guard plate are arranged alternately, and there is a space between the upper guard plate and the lower guard plate.

[0012] As a preferred embodiment of the present invention, the filling block is made of ceramic-based composite material, which is a type of composite material that uses ceramic as a matrix and is composited with various fibers.

[0013] As a preferred embodiment of the present invention, the upper guard plate and the lower guard plate are made of composite plates, and the outer surfaces of the upper guard plate and the lower guard plate are coated with heat dissipation silicone grease.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This engine under-protection device, when external spatters hit this device, the spatters first hit the lower guard plate, and the lower guard plate blocks the spatters. When the kinetic energy of the spatters is too large, the filling blocks block the spatters for a second time. When the spatters pass through the secondary blockage, the upper guard plate blocks the spatters. The kinetic energy of the spatters is consumed through multiple blocks, thereby preventing the spatters from causing irreversible damage to the bottom of the engine.

[0016] 2. This engine under-protection device reduces consumables through the through grooves on the upper guard plate and the holes on the lower guard plate. When splashes hit it, the splashing angle is offset due to the force after the splashes are hit by the through grooves and holes, thereby preventing the splashes from directly hitting the center of the engine and providing full protection for the engine.

[0017] 3. This under-engine protection device increases the force-bearing area and resistance of the filling block through the wavy structure of the filling block, thereby improving the ability to block splashes during secondary impact.

[0018] 4. This under-engine protection device, through the materials and shapes of the upper guard plate, lower guard plate and filling block, can resist impact while dissipating heat, thereby preventing the temperature at the bottom of the engine from continuing to rise, causing the engine to work under load.

[0019] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In the attached figure:

[0021] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0022] Figure 2 This is a bottom view schematic diagram of the utility model;

[0023] Figure 3 This is a schematic diagram of the disassembly of the filling block and the mounting frame of the utility model;

[0024] Figure 4 This is a schematic diagram of the disassembly of the upper guard plate and the mounting frame of the utility model;

[0025] Figure 5 This is a schematic diagram of the disassembly of the lower guard plate and the mounting frame of the utility model.

[0026] In the figure: 1. mounting frame; 2. upper guard plate; 21. lower guard plate; 3. filling block. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0028] See also Figure 1-5 The upper guard plate 21 is fixedly connected to the mounting bracket 1, and the upper guard plate 2 is arranged at the upper end of the mounting bracket 1. The upper guard plate 2 is fixedly connected to the mounting bracket 1. When external spatters hit the device, the spatters first hit the lower guard plate 21 and are blocked by the lower guard plate 21. When the kinetic energy of the spatters is too large, the spatters are blocked for the second time by the filling block 3. When the spatters pass through the secondary blockage, the spatters are blocked by the upper guard plate 2. The kinetic energy of the spatters is consumed through multiple blocks, thereby preventing the spatters from causing irreversible damage to the bottom of the engine.

[0029] Among them, the lower guard plate 21 is provided with multiple groups of holes, and the upper guard plate 2 is provided with multiple groups of through grooves. The upper guard plate 2 and the lower guard plate 21 are all connected to the mounting frame 1 through fasteners. The fasteners include but are not limited to bolts. The through grooves on the upper guard plate 2 and the holes on the lower guard plate 21 are staggered. There is space between the upper guard plate 2 and the lower guard plate 21. The through grooves on the upper guard plate 2 and the holes on the lower guard plate 21 can reduce consumables while reducing the spatters. When the spatters hit it, the spatters are hit by the through grooves and holes due to the action of force, and the angle of the spatters is offset, thereby avoiding the spatters directly hitting the center of the engine and providing full protection for the engine.

[0030] Among them, a filling block 3 is arranged between the upper guard plate 2 and the lower guard plate 21. The filling block 3 is fixedly connected to the mounting frame 1. The filling block 3 is wavy as a whole, and there is a gap between the side of the filling block 3 and the mounting frame 1. The wavy structure of the filling block 3 increases the force-bearing area and resistance of the filling block 3, thereby improving the ability to block splashes during secondary impact.

[0031] Among them, the filling block 3 is made of ceramic-based composite material, which is a type of composite material with ceramic as the matrix and various fibers. The upper guard plate 2 and the lower guard plate 21 are made of composite plates, and the upper guard plate 2 and the lower guard plate 21 are coated with heat-dissipating silicone grease. The materials and shapes used in the upper guard plate 2, the lower guard plate 21 and the filling block 3 can resist impact while dissipating heat to the device, thereby avoiding the temperature at the bottom of the engine from continuing to rise, causing the engine to work under load.

[0032] Working principle: When the external sputtering objects hit the device, the sputtering objects will hit the lower guard plate 21 first, and the lower guard plate 21 will block the sputtering objects. When the kinetic energy of the sputtering objects is too large, the filling block 3 will block the sputtering objects for the second time. When the sputtering objects pass through the second block, the upper guard plate 2 will block the sputtering objects. The kinetic energy of the sputtering objects will be consumed through multiple blocks, thereby preventing the sputtering objects from causing irreversible damage to the bottom of the engine. Through the through grooves on the upper guard plate 2 and the holes on the lower guard plate 21, the sputtering objects will hit the engine and reduce the consumables. When it is on it, the angle of the sputtering is offset after the sputtering is hit by the grooves and holes due to the action of the force, thereby avoiding the sputtering directly hitting the center of the engine and fully protecting the engine. The wavy structure of the filling block 3 increases the force-bearing area and resistance of the filling block 3, thereby improving the ability to block the sputtering during the secondary impact. The materials and shapes used in the upper guard plate 2, the lower guard plate 21 and the filling block 3 can dissipate heat for the device while resisting the impact, thereby avoiding the temperature at the bottom of the engine from continuing to rise, causing the engine to work under load.

[0033] It is understood that the present invention is described by way of certain embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. Furthermore, under the guidance of the present invention, these features and embodiments may be modified to suit specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. An under-engine protective device, characterized in that: include: A mounting frame (1), wherein a plurality of mounting positions are provided on the mounting frame (1); A protective assembly is provided on a mounting frame (1). The protective assembly is used for protecting an engine. The protective assembly comprises an upper guard plate (2) and a lower guard plate (21). The lower guard plate (21) is provided at the bottom end of the mounting frame (1). The lower guard plate (21) is fixedly connected to the mounting frame (1). The upper guard plate (2) is provided at the upper end of the mounting frame (1). The upper guard plate (2) is fixedly connected to the mounting frame (1).

2. The under-engine protection device according to claim 1, characterized in that: The lower guard plate (21) is provided with a plurality of holes, the upper guard plate (2) is provided with a plurality of through slots, and the upper guard plate (2) and the lower guard plate (21) are all connected to the mounting frame (1) via fasteners.

3. The under-engine protection device according to claim 1, characterized in that: A filling block (3) is provided between the upper guard plate (2) and the lower guard plate (21), and the filling block (3) is fixedly connected to the mounting frame (1).

4. The under-engine protection device according to claim 3, characterized in that: The filling block (3) is wavy in shape as a whole, and there is a gap between the side of the filling block (3) and the mounting frame (1).

5. The under-engine protection device according to claim 1, characterized in that: The through slots on the upper guard plate (2) and the holes on the lower guard plate (21) are arranged in a staggered manner, and there is a space between the upper guard plate (2) and the lower guard plate (21).

6. The under-engine protection device according to claim 3, characterized in that: The filling block (3) is made of a ceramic-based composite material, which is a type of composite material that uses ceramic as a matrix and is composited with various fibers.

7. The under-engine protection device according to claim 1, characterized in that: The upper guard plate (2) and the lower guard plate (21) are made of composite plates, and the upper guard plate (2) and the lower guard plate (21) are coated with heat dissipation silicone grease.

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