Hood of wheel excavator
By designing the structure of the wheeled excavator hood and utilizing wind power and inertia to adjust the exhaust cover, the problem of high engine temperature was solved, achieving efficient heat dissipation and noise reduction, thus improving the user experience.
Patent Information
- Application Number
- CN202423258118.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-27
AI Technical Summary
Existing wheeled excavators experience excessively high engine coolant temperatures when traveling at high speeds, requiring the engine to reduce output power or shut down. Furthermore, existing heat dissipation optimization measures impact noise and cost, and space constraints make improvement difficult.
A wheeled excavator hood was designed, comprising an upper hood, a left hood, a right hood, and a rear hood, with ventilation holes and exhaust holes. The exhaust cover is adjusted by wind force and inertia to improve heat dissipation performance.
It maintains a sealed environment during excavation to prevent excessive noise, effectively dissipates heat during high-speed movement, improves heat dissipation performance, and enhances the user experience.
Smart Images
Figure CN223660909U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to excavator accessory field, concretely, especially relates to a wheel excavator machine cover. BACKGROUND
[0002] Wheel excavator is widely applied in road repair, ditching and material transferring process because of the advantages of strong mobility, flexible action and walking on city or country road.
[0003] When wheel excavator goes to destination and returns, long time high speed walking (i.e. running) may be needed, at this time engine load is high, therefore engine water temperature is high often, especially in the case of engine transverse arrangement. When engine water temperature is high, in order to protect engine, engine output power is limited directly or the machine is stopped directly, so that engine temperature is reduced.
[0004] Therefore, in order to ensure that engine high temperature does not occur when running, the following methods are generally used: increasing fan rotating speed, increasing opening size, increasing radiator size, optimizing space structure to make it easier to ventilate.
[0005] But the corresponding disadvantage is that noise will also be high, affecting performance index and user experience; cost will increase, and at the same time, due to limited space, hydraulic oil radiator space may not be placed or be squeezed, resulting in hydraulic oil temperature exceeding standard; machine cover internal space is limited, and when the size of each part is determined, it is difficult to change, so the space structure is generally difficult to optimize. UTILITY MODEL CONTENT
[0006] The utility model aims at providing a wheel excavator machine cover to improve the heat dissipation performance of wheel excavator.
[0007] The utility model is implemented through the following technical solutions:
[0008] A wheel excavator machine cover, comprising a cabin, a upper machine cover is fixed on the framework of the cabin through bolts, a left machine cover, a right machine cover and a rear machine cover are hinged on the upper machine cover, a plurality of ventilation holes II are arranged on one side of the upper machine cover, and a circular exhaust hole is arranged on the other side; an opening surface is arranged on the rear machine cover, a plurality of ventilation holes III are arranged on the opening surface, the ventilation holes III are provided with an air outlet cover plate, and the air outlet cover plate is hinged with the opening surface.
[0009] Further, the left machine cover is fixed on the upper machine cover through a hinge, and the left machine cover is fixed on the framework of the cabin through a gas spring below; a plurality of ventilation holes II are arranged on the left machine cover, an opening is arranged on the lower part of the left machine cover, and a plurality of air inlet strips are arranged in the opening.
[0010] Further, the air inlet strip is parallel to the left cover plane and has an angle of 45 degrees, and the air inlet strip is high inside and low outside, and the upper edge of the air inlet strip is higher than the lower edge of the adjacent air inlet strip.
[0011] Further, the right cover is fixed to the upper cover through two hinges, and the lower surface of the right cover is fixed to the framework of the cabin through air springs.
[0012] Further, the metal net is arranged with a plurality of mesh holes, and the mesh holes are regular hexagons.
[0013] Further, the material of the air outlet cover plate is light metal.
[0014] Further, the soft pad is covered around the ventilation hole III.
[0015] Compared with the prior art, the beneficial effects of the utility model are:
[0016] When the rear cover is excavated, the air outlet cover plate is closed, so that the noise caused by the excessively large opening is avoided, and the sealing property of the cover is improved, when the car is running, the air outlet cover plate is lifted by the wind force and the inertial effect, the heat generated by the engine is taken away in time, at the same time, the higher the engine power is, the faster the car speed is, the faster the flow rate of the wind is, and the more heat is taken away, so that the heat dissipation performance of the radiator is greatly improved. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 is the three-dimensional schematic view of the utility model;
[0018] Figure 2 is the top view schematic view of the utility model;
[0019] Figure 3 is the three-dimensional schematic view of the left cover of the utility model;
[0020] Figure 4 is the sectional view of the air inlet strip of the left cover in the utility model;
[0021] Figure 5 is the three-dimensional schematic view of the right cover of the utility model;
[0022] Figure 6 is the three-dimensional schematic view of the rear cover of the utility model.
[0023] In the drawing: 1, upper cover; 2, left cover; 3, right cover; 4, rear cover; 5, counterweight; 11, ventilation hole I; 12, exhaust round hole; 21, ventilation hole II; 22, opening; 23, air inlet strip; 31, metal net; 41, opening surface; 42, soft pad; 43, air outlet cover plate; 44, shaft pin. DETAILED DESCRIPTION
[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Based on the embodiments in this application, other similar embodiments obtained by those skilled in the art without creative effort should all fall within the scope of protection of this application. Furthermore, the directional terms mentioned in the following embodiments, such as "up," "down," "left," and "right," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for illustrative purposes and not for limiting the creation of this utility model.
[0025] The present invention will be further described below with reference to the accompanying drawings.
[0026] Example 1: A wheeled excavator hood, such as Figures 1-2 As shown, the engine compartment includes an engine bay. The frame of the engine bay is bolted to an upper engine cover 1. A left engine cover 2, a right engine cover 3, and a rear engine cover 4 are hinged to the upper engine cover 1. The left engine cover 2, the right engine cover 3, and the rear engine cover 4 can all be opened for easy cleaning of the radiator and replacement and maintenance of engine bay components. The upper engine cover 1 has several ventilation holes I11 on the air intake side for auxiliary air intake, and an exhaust hole 12 on the other side for exposing the engine exhaust pipe. The rear engine cover 4 is L-shaped and covers the counterweight 5. The rear engine cover 4 is divided into horizontal and vertical parts. The vertical part of the rear engine cover 4 has two opening surfaces 41. The opening surfaces 41 form an angle of 20-30° with the vertical plane. Each opening surface 41 has three ventilation holes III. The ventilation holes III are equipped with exhaust covers 43. The exhaust covers 43 are connected to the opening surfaces 41 by a shaft pin 44.
[0027] Example 2: A wheeled excavator hood, such as Figure 3 and Figure 4 As shown, the left engine cover 2 is fixed to the upper engine cover 1 by hinges, and the lower part of the left engine cover 2 is fixed to the frame of the cabin by gas springs; the left engine cover 2 is provided with multiple rows of ventilation holes II 21, which are strip-shaped, and the left engine cover 2 is provided with an opening 22, in which several air inlet strips 23 are provided; the air inlet strips 23 are at a 45° angle to the plane of the left engine cover 2, and the air inlet strips 23 are arranged in parallel with the inner side higher than the outer side. The upper edge of the air inlet strip 23 is higher than the lower edge of the adjacent air inlet strip 23 above it, which can block the transmission of noise, minimize noise, and reduce the entry of rainwater.
[0028] like Figure 5 and Figure 6 As shown, the right engine cover 3 is fixed to the upper engine cover 1 by two hinges, and the right engine cover 3 is fixed to the frame of the cabin by a gas spring; a metal mesh 31 is bolted to the right engine cover 3; the metal mesh 31 has a number of mesh holes arranged on it, the mesh holes are regular hexagonal with a side length of 1cm, so as to minimize the resistance of airflow when the air is vented.
[0029] The material of the air outlet cover plate 43 is a light metal, so that the air outlet cover plate 43 can be easily lifted by wind force and inertia.
[0030] The air vent III is covered with a soft pad 42, specifically a rubber pad, to increase the friction between the air outlet cover plate 43 and the opening surface 41, improve the sealing property of the two, and reduce the impact sound. The rest is the same as example 1.
[0031] When digging, the air outlet cover plate 43 of the utility model is closed, which avoids excessive noise caused by a large opening, increases the sealing property of the machine cover, and improves the user experience. When running, the air outlet cover plate 43 is lifted by wind force and inertia, and the heat generated by the engine is timely removed. At the same time, the higher the engine power, the faster the vehicle speed, the faster the wind speed, and the more heat removed. This greatly improves the heat dissipation performance of the radiator and avoids high temperature of the engine.
[0032] The utility model has been described in detail above, and the above description is only a preferred embodiment of the utility model, which cannot limit the scope of the utility model. Any equivalent changes and modifications made within the scope of the application shall still fall within the scope of the utility model.
Claims
1. A wheel excavator cab comprising a cab, characterised in that: The upper machine cover (1) is bolted on the framework of the engine room, the left machine cover (2), the right machine cover (3) and the rear machine cover (4) are hinged on the upper machine cover (1), a plurality of ventilation holes I (11) are arranged on one side of the upper machine cover (1), and exhaust round holes (12) are arranged on the other side; the rear machine cover (4) is provided with an opening surface (41), a plurality of ventilation holes III are arranged on the opening surface (41), and air outlet cover plates (43) are arranged on the ventilation holes III and hinged with the opening surface (41).
2. The wheel excavator cab according to claim 1, characterized in that: The left machine cover (2) is hinged on the upper machine cover (1) through a hinge, and the left machine cover (2) is fixed on the framework of the engine room through an air spring; a plurality of rows of ventilation holes II (21) are arranged on the left machine cover (2), and an opening (22) is arranged on the lower part of the left machine cover (2), and a plurality of air inlet strips (23) are arranged in the opening (22).
3. The wheel excavator cab defined in claim 2, characterized in that: The air inlet strips (23) are arranged at an angle of 45° with the plane of the left machine cover (2), and the air inlet strips (23) are arranged in parallel and have a high inner part and a low outer part.
4. The wheel excavator cab defined in claim 1, wherein: The right machine cover (3) is hinged on the upper machine cover (1) through a hinge, and the right machine cover (3) is fixed on the framework of the engine room through an air spring; the right machine cover (3) is provided with a metal mesh (31).
5. The wheel excavator cab defined in claim 4, characterized in that: A plurality of mesh holes are arranged on the metal mesh (31) and are in the shape of regular hexagons.
6. The wheel excavator canopy of claim 1, wherein: The material of the air outlet cover plate (43) is a light metal.
7. The wheel excavator canopy according to claim 1, characterized in that: The ventilation holes III are covered with soft pads (42).