Diesel engine flexible fan shroud with novel structure

Abstract

The utility model discloses a diesel engine flexible fan shroud with a novel structure, which comprises a main body unit, the main body unit comprises a shroud framework, a rubber sheet is fixedly connected on the shroud framework, a plurality of mounting holes are arranged on the shroud framework, and a first support, a second support and a third support are respectively arranged on the shroud framework. According to the flexible fan shroud, the gap between the fan and the shroud can be designed to be smaller, the gap is 6 mm, and the working efficiency of the fan can be greatly improved. The fan efficiency is improved, the air volume is increased, and the risk that the diesel engine breaks down due to high temperature is reduced, so that the durability and working performance of the diesel engine are guaranteed; the efficient fan can effectively cool the engine, energy loss caused by insufficient cooling is reduced, energy loss during working of the fan is reduced, and therefore oil consumption is reduced, and operation cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of diesel engine structures, in particular to a flexible fan air shroud with a novel structure for a diesel engine. Background Art

[0002] At present, most of the fan air shrouds of diesel engines are designed on the water tank. Due to the asynchronous vibration of the diesel engine and the water tank air shroud, in order to avoid the movement interference between the fan and the air shroud, the fan clearance is usually designed to be relatively large. Generally, the clearance of small diesel engines is designed to be ≥25 mm. A large clearance between the fan and the air shroud will result in a large airflow loss, reduce the fan efficiency, be unfavorable for the energy conservation and consumption reduction of the whole vehicle, and at the same time increase the airflow noise, and even cause high-temperature faults of the diesel engine, affecting the normal operation of the vehicle.

[0003] The main disadvantages of this structure are as follows: 1. The clearance between the fan and the air shroud is relatively large, the fan efficiency is low, which will cause high fuel consumption of the vehicle and even high-temperature faults of the vehicle. 2. The rigid air shroud and the fan vibrate asynchronously, and there may be movement interference under extreme conditions, resulting in fan damage. 3. The assembly bases of the engine and the water tank are different. To ensure good cooperation between the fan and the rigid air shroud, higher component and assembly precision are required. Summary of the Utility Model

[0004] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part, as well as in the abstract of the specification and the title of the utility model of this application, to avoid obscuring the purpose of this part, the abstract of the specification and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the utility model.

[0005] To solve the above technical problems, the utility model provides the following technical solutions:

[0006] A flexible fan air shroud with a novel structure for a diesel engine, comprising:

[0007] A main body unit, including an air shroud skeleton, a rubber rubber sheet is fixedly connected to the air shroud skeleton, a plurality of mounting holes are opened on the air shroud skeleton, and a first bracket, a second bracket and a third bracket are respectively mounted on the air shroud skeleton.

[0008] As a preferred scheme of the flexible fan air shroud with a novel structure for a diesel engine described in the utility model, wherein: a first mounting groove is opened on the first bracket, the first mounting groove is matched with the mounting hole, a threaded hole is opened on the first bracket, and a first threaded groove is opened on the first bracket.

[0009] As a preferred embodiment of the novel-structured flexible fan shroud for diesel engines of the present utility model, the following is provided: a second mounting groove is formed on the second bracket, the second mounting groove is adapted to the mounting hole, a second threaded groove is formed on the second bracket, and a bushing is provided on the second bracket.

[0010] As a preferred embodiment of the novel-structured flexible fan shroud for diesel engines of the present utility model, the following is provided: a third mounting groove is formed on the third bracket, the third mounting groove is adapted to the mounting hole, and third threaded grooves are symmetrically formed on the third mounting groove.

[0011] As a preferred embodiment of the novel-structured flexible fan shroud for diesel engines of the present utility model, the following is provided: the front end of the fan shroud skeleton adopts a soft rubber skin structure, the rubber rubber skin is fixed on the fan shroud skeleton by press-fitting and screw pressing, and one end of the rubber rubber skin away from the fan shroud skeleton is in a flared structure.

[0012] Advantages of the present utility model:

[0013] The use of a flexible fan shroud allows for a smaller gap between the fan and the shroud, with a gap of 6 mm, which can significantly improve the working efficiency of the fan. The increased fan efficiency and air volume help reduce the risk of diesel engine failures due to high temperatures, thereby ensuring the durability and working performance of the diesel engine; the high fan efficiency can effectively cool the engine, reduce energy losses caused by insufficient cooling, reduce energy consumption during fan operation, and thus reduce fuel consumption and operating costs; the high fan efficiency can ensure that the diesel engine operates at the optimal temperature at all times, helping to reduce emissions and being beneficial to environmental protection; the shroud is directly assembled on the engine, and there is no relative movement between the fan and the shroud, avoiding the failure mode of damage caused by movement interference between the fan and the shroud; the gap between the shroud and the fan is small, and the rubber tightly wraps the airflow field, which can effectively reduce the working noise of the fan. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model, and those of ordinary skill in the art can obtain other drawings without creative efforts based on these drawings. Among them:

[0015] Figure 1 It is a partial front overall structure schematic diagram of a novel-structured flexible fan shroud for diesel engines proposed by the present utility model;

[0016] Figure 2 is Figure 1 a side view of;

[0017] Figure 3 Partial structural side view schematic diagram of a flexible fan shroud for a diesel engine with a novel structure proposed by the present utility model;

[0018] Figure 4 Partial structural side view schematic diagram of a flexible fan shroud for a diesel engine with a novel structure proposed by the present utility model;

[0019] Figure 5 Partial structural side view schematic diagram of a flexible fan shroud for a diesel engine with a novel structure proposed by the present utility model;

[0020] Figure 6 is Figure 5 left view of.

[0021] In the figure: 100, main body unit; 101, fan shroud skeleton; 102, rubber rubber; 103, first bracket; 103a, first installation groove; 103b, first thread groove; 103c, first thread groove; 104, second bracket; 104a, second installation groove; 104b, second thread groove; 104c, bushing; 105, third bracket; 105a, third installation groove; 105b, third thread groove; 106, installation hole. Specific embodiments

[0022] To make the above objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model is made in conjunction with the accompanying drawings of the specification.

[0023] In the following description, many specific details are set forth in order to fully understand the present utility model, but the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0024] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation of the present utility model. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that excludes other embodiments.

[0025] Furthermore, the present utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of the present utility model in detail, for the sake of clarity, the cross-sectional views showing the device structure will be enlarged locally out of the general proportion, and the schematic diagrams are only examples and should not limit the scope of protection of the present utility model herein. In addition, in actual production, three-dimensional spatial dimensions including length, width and depth should be included.

[0026] Reference Figures 1-6 , the utility model provides a flexible fan shroud for a diesel engine with a new structure, including:

[0027] The main body unit 100 includes a shroud skeleton 101, a rubber rubber sheet 102 is fixedly connected to the shroud skeleton 101, a plurality of mounting holes 106 are formed in the shroud skeleton 101, and a first bracket 103, a second bracket 104 and a third bracket 105 are respectively mounted on the shroud skeleton 101.

[0028] Among them, a first mounting groove 103a is formed in the first bracket 103, the first mounting groove 103a is matched with the mounting hole 106, a threaded hole 103c is formed in the first bracket 103, and a first threaded groove 103b is formed in the first bracket 103. The first bracket 103 is mounted on the shroud skeleton 101 through the cooperation of the first mounting groove 103a and the mounting hole 106, and the device is mounted on the engine body through the first threaded groove 103b and the threaded hole 103c.

[0029] Further, a second mounting groove 104a is formed in the second bracket 104, the second mounting groove 104a is matched with the mounting hole 106, a second threaded groove 104b is formed in the second bracket 104, and a bushing 104c is arranged on the second bracket 104. The second bracket 104 is mounted on the shroud skeleton 101 through the cooperation of the second mounting groove 104a and the mounting hole 106, and the device is mounted on the engine body through the second threaded groove 104b and the bushing 104c.

[0030] Further, a third mounting groove 105a is formed in the third bracket 105, the third mounting groove 105a is matched with the mounting hole 106, and third threaded grooves 105b are symmetrically formed in the third mounting groove 105a. The third bracket 105 is mounted on the shroud skeleton 101 through the cooperation of the third mounting groove 105a and the mounting hole 106, and the device is mounted on the engine body through the third threaded grooves 105b.

[0031] Furthermore, the front end of the shroud skeleton 101 adopts a soft rubber sheet structure, the rubber rubber sheet 102 is fixed on the shroud skeleton 101 by press-fitting and screw pressing, and one end of the rubber rubber sheet 102 away from the shroud skeleton 101 is in a flared structure, so that the vehicle radiator shroud is fitted together through the arrangement of the rubber rubber sheet 102.

[0032] The device is composed of a wind guard ring framework 101, a rubber sheet 102, a first bracket 103, a second bracket 104 and a third bracket 105. The wind guard ring framework 101 is a plastic part. The gap between the fan and the wind guard ring framework 101 is 6 mm. The wind guard ring framework 101 is fixed on the diesel engine body through the first bracket 103, the second bracket 104 and the third bracket 105. The front end of the wind guard ring framework 101 adopts a soft rubber sheet structure. One end of the rubber sheet 102 is fixed on the wind guard ring framework 101 by press-fitting and screw pressing, and the other end is made into a flared structure and fits together with the vehicle water tank wind ring.

[0033] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A flexible fan shroud for a diesel engine with a new structure, characterized in that: Comprising: A main body unit (100) including a wind guard ring skeleton (101), a rubber rubber sheet (102) is fixedly connected to the wind guard ring skeleton (101), a plurality of mounting holes (106) are formed in the wind guard ring skeleton (101), and a first bracket (103), a second bracket (104) and a third bracket (105) are respectively mounted on the wind guard ring skeleton (101).

2. A flexible fan shroud for a diesel engine with a new structure according to claim 1, characterized in that: A first mounting groove (103a) is formed in the first bracket (103), the first mounting groove (103a) is matched with the mounting hole (106), a threaded hole (103c) is formed in the first bracket (103), and a first threaded groove (103b) is formed in the first bracket (103).

3. A flexible fan air shroud for a diesel engine with a new structure according to claim 2, characterized in that: A second mounting groove (104a) is formed in the second bracket (104), the second mounting groove (104a) is matched with the mounting hole (106), a second threaded groove (104b) is formed in the second bracket (104), and a bushing (104c) is arranged on the second bracket (104).

4. A flexible fan shroud for a diesel engine with a new structure according to claim 3, characterized in that: A third mounting groove (105a) is formed in the third bracket (105), the third mounting groove (105a) is matched with the mounting hole (106), and third threaded grooves (105b) are symmetrically formed in the third mounting groove (105a).

5. A flexible fan air shroud for a diesel engine with a new structure according to claim 4, characterized in that: The front end of the wind guard ring skeleton (101) adopts a soft rubber sheet structure, the rubber rubber sheet (102) is fixed on the wind guard ring skeleton (101) by press-fitting and screw pressing, and one end of the rubber rubber sheet (102) away from the wind guard ring skeleton (101) is in a flared structure.

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