Flexible shroud and fan

Abstract

The utility model discloses a flexible shroud ring and a fan, the flexible shroud ring comprises: a base body, which is in an annular structure and is connected with a support; the inner ring is of a tubular structure and is fixedly connected with the base body; the shock pad is arranged between the base body and the support, and the base body and the support are detachably connected through the shock pad. According to the flexible wind protection ring and the fan, the shock pad is arranged between the base body and the support, direct contact between the support and the base body can be avoided, when the inner ring vibrates, shock buffering can be achieved through the shock pad, shock transmission cannot be directly achieved, and base body cracking caused by asynchronous movement of the base body and the support is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of engine cooling equipment, and more specifically, to a flexible wind shield. In addition, the utility model also relates to a fan including the flexible wind shield. Background Art

[0002] Existing heavy-duty engines are equipped with cooling equipment, such as fans, etc. Fans are generally equipped with a flexible fan wind shield. The fan flexible wind shield is an important component of the vehicle cooling system. It is an annular device installed on the periphery of the fan and fixed to the engine end. Its main function is to protect the fan blades from damage and improve the overall performance of the fan, including flow rate, static pressure, shaft power and efficiency. The flexible wind shield is mostly made of aluminum alloy as a profile. Due to its large diameter, the aluminum profile is easily deformed at high temperature during welding, and the yield rate is too low. Therefore, the thickness of the aluminum profile is not less than 7mm. In addition, the unit price of aluminum alloy is more expensive than iron, which leads to higher costs. Due to the limitation of fan installation, the fan flexible wind shield bracket will protrude a long distance from the engine body. During the long-term operation of the engine, the installation surface of the fan flexible wind shield will crack.

[0003] In summary, how to prevent the installation surface of the flexible wind shield from cracking is a problem that needs to be urgently solved by those skilled in the art. Utility Model Content

[0004] In view of this, the purpose of the present invention is to provide a flexible wind shield, wherein the connection portion between the base and the bracket of the flexible wind shield is provided with a shock-absorbing pad, which can effectively avoid the problem of cracking of the base.

[0005] Another object of the present invention is to provide a fan comprising the flexible wind shield.

[0006] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0007] A flexible wind shield, comprising:

[0008] The matrix is a ring-shaped structure, and the matrix is connected to the bracket;

[0009] The inner ring is a tubular structure and is fixedly connected to the base body;

[0010] A shock-absorbing pad is provided between the base and the bracket, and the base and the bracket are detachably connected via the shock-absorbing pad.

[0011] Preferably, the shock-absorbing pad includes an upper bushing, a lower bushing, an upper bushing wire mesh ring and a lower bushing wire mesh ring, the upper bushing wire mesh ring and the lower bushing wire mesh ring are arranged between the upper bushing and the lower bushing, and the base is arranged between the upper bushing wire mesh ring and the lower bushing wire mesh ring.

[0012] Preferably, the upper bushing and the lower bushing are both annular structures with a perforation in the middle, and the shock-absorbing pad is detachably connected to the bracket by bolts and nuts.

[0013] Preferably, the upper bushing is sleeved on the lower bushing, the upper bushing and the lower bushing are detachably connected, the upper bushing wire mesh loop is sleeved on the outer periphery of the upper bushing, and the lower bushing wire mesh loop is sleeved on the outer periphery of the lower bushing.

[0014] Preferably, an arc-shaped protrusion is provided on the base, and the shock-absorbing pad is provided on the protrusion so that the central axis of the shock-absorbing pad is parallel to the central axis of the inner ring.

[0015] Preferably, the cross-sections of the upper bushing and the lower bushing are both T-shaped structures, the protrusion is provided with a through-hole, the end of the lower bushing passing through the through-hole has the same shape and size as the through-hole, and the end of the upper bushing is sleeved on the outer periphery of the lower bushing and matched with the lower bushing.

[0016] Preferably, the bracket includes an upper bracket and two side brackets, the upper bracket is arranged in cooperation with the two shock-absorbing pads, and the side bracket is arranged in cooperation with one shock-absorbing pad.

[0017] Preferably, the base and the inner ring are fixedly connected by welding, and an elastic member is provided between the base and the inner ring.

[0018] Preferably, the base and the inner ring are both made of DC01 cold-rolled low-carbon steel with a thickness of 1.5 mm.

[0019] A fan comprises a flexible wind shield, wherein the flexible wind shield is any one of the flexible wind shields described above.

[0020] The utility model provides a flexible wind protection ring, whose base is connected to the bracket, the inner ring of the wind protection ring is fixedly connected to the base, and a shock-absorbing pad is provided between the base and the bracket, so that the base and the bracket do not contact each other. When the base or the bracket vibrates, the vibration can be buffered by the shock-absorbing pad, and the vibration will not be directly transmitted, thereby avoiding cracking of the base caused by asynchronous movement of the base and the bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0022] Figure 1 This is a front view of the flexible wind shield provided by the present invention;

[0023] Figure 2 A side view of the flexible wind shield provided by the present invention;

[0024] Figure 3 A cross-sectional view of the flexible wind shield provided by the present invention;

[0025] Figure 4 This is a cross-sectional view of the shock-absorbing pad provided by the utility model.

[0026] Reference numerals:

[0027] 1-base; 2-bracket; 201-upper bracket; 202-side bracket; 3-inner ring; 4-shock-absorbing pad; 401-upper bushing; 402-lower bushing; 403-upper bushing wire mesh ring; 404-lower bushing wire mesh ring; 5-bolt; 6-elastic member. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] The core of the utility model is to provide a flexible wind shield, on which the shock-absorbing pad can effectively avoid the problem of cracking of the base of the flexible wind shield of the fan.

[0030] Another core of the present invention is to provide a fan including the flexible wind shield.

[0031] It should be noted that the directions or positional relationships indicated by “upper”, “lower”, “front”, “back”, etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on this application.

[0032] The present application provides a flexible wind shield, comprising: a base 1, an inner ring 3 and a shock-absorbing pad 4;

[0033] The base 1 is a ring-shaped structure, and the base 1 is connected to the bracket 2;

[0034] The inner ring 3 is a tubular structure and is fixedly connected to the base 1;

[0035] The shock-absorbing pad 4 is provided between the base 1 and the bracket 2 , and the base 1 and the bracket 2 are detachably connected via the shock-absorbing pad 4 .

[0036] Specifically, the base 1 is an annular structure, and multiple positions are selected on the base 1 to be connected to the bracket 2. The base 1 is fixedly connected to the inner ring 3, that is, the inner ring 3 can be indirectly connected to the bracket 2 through the base 1. It should be noted that the inner ring 3 is generally mounted on the fan protective cover. After the fan is started, the fan blades will drive the protective cover and the inner ring 3 to produce certain vibrations. The inner ring 3 is fixedly connected to the base 1 and vibrates synchronously, but a shock-absorbing pad 4 is provided between the bracket 2 and the base 1. The shock-absorbing pad 4 can slow down the vibration of the base 1, which can effectively avoid the problem of cracking of the base 1.

[0037] Based on the above embodiment, the shock-absorbing pad 4 includes an upper bushing 401, a lower bushing 402, an upper bushing wire mesh ring 403 and a lower bushing wire mesh ring 404. The upper bushing wire mesh ring 403 and the lower bushing wire mesh ring 404 are arranged between the upper bushing 401 and the lower bushing 402, and the base 1 is arranged between the upper bushing wire mesh ring 403 and the lower bushing wire mesh ring 404.

[0038] Specifically, the shock-absorbing pad 4 has an I-shaped structure, and the shock-absorbing pad 4 is composed of an upper bushing 401 and a lower bushing 402. An upper bushing wire mesh ring 403 and a lower bushing wire mesh ring 404 are arranged between the upper end face and the lower end face of the shock-absorbing pad 4. The upper bushing wire mesh ring 403 and the lower bushing wire mesh ring 404 are clamped on both sides of the base 1, which can play a good buffering role. It should be noted that the lower end face of the upper bushing 401 is flush with the lower end face of the upper bushing wire mesh ring 403, and the base 1 is clamped by the cooperation of the lower end face of the upper bushing 401, the upper bushing wire mesh ring 403 and the lower bushing 402 to ensure the shock-absorbing effect.

[0039] On the basis of the above embodiment, the upper bushing 401 and the lower bushing 402 are both annular structures with a perforation in the middle, and the shock-absorbing pad 4 is detachably connected to the bracket 2 by bolts 5 and nuts.

[0040] Specifically, the inner end surface of the lower bushing 402 is chamfered to facilitate the passage of the bolt 5. The lower bushing 402 and the upper bushing 401 pass through the two sides of the through-hole on the base 1 respectively. The bolt 5 passes through the base 1 and the bracket 2, and cooperates with the nut to realize the detachable connection between the bracket 2 and the base 1.

[0041] Based on the above embodiment, the upper bushing 401 is sleeved on the lower bushing 402, and the upper bushing 401 and the lower bushing 402 are detachably connected. The upper bushing wire mesh ring 403 is sleeved on the outer periphery of the upper bushing 401, and the lower bushing wire mesh ring 404 is sleeved on the outer periphery of the lower bushing 402.

[0042] Specifically, during the installation process, the lower bushing 402 needs to be passed through the through-hole first, and the upper bushing 401 is directly mounted on the end of the lower bushing 402 passing through the through-hole, and the bolt 5 and the nut are tightened to achieve the positioning between the upper bushing 401 and the lower bushing 402. In addition, the upper bushing wire mesh ring 403 and the lower bushing wire mesh ring 404 are all detachably connected to the bushing, and the positioning is achieved by the circumferential end face of the bushing.

[0043] On the basis of the above embodiment, an arc-shaped protrusion is provided on the base 1 , and the shock-absorbing pad 4 is provided on the protrusion so that the central axis of the shock-absorbing pad 4 is parallel to the central axis of the inner ring 3 .

[0044] For details, please refer to the attached Figure 1 The upper and lower ends of the base 1 are both provided with protrusions, and the two protrusions can be symmetrical about the center of the base 1. The setting of the protrusions can make the center line of the main part of the base 1 and the inner ring 3 parallel to the center line of the bolt 5, so as to facilitate the installation of the wind shield.

[0045] Based on the above embodiment, the cross-sections of the upper bushing 401 and the lower bushing 402 are both T-shaped structures, and a perforation is provided on the protrusion. The end of the lower bushing 402 passing through the perforation has the same shape and size as the perforation, and the end of the upper bushing 401 is sleeved on the outer periphery of the lower bushing 402 and matched with the lower bushing 402.

[0046] Specifically, the perforation is generally set as a circular hole, and the cross-section of the upper bushing 401 and the lower bushing 402 is T-shaped, so that both bushings can pass through the perforation, the diameter of the central column part of the lower bushing 402 is the same as the diameter of the perforation, and the inner diameter of the central part of the upper bushing 401 is the same as the outer diameter of the lower bushing 402, to ensure that the two bushings can fit into and clamp the perforation.

[0047] On the basis of the above embodiment, the bracket 2 includes an upper bracket 201 and two side brackets 202 . The upper bracket 201 is provided in cooperation with two shock-absorbing pads 4 , and the side bracket 202 is provided in cooperation with one shock-absorbing pad 4 .

[0048] Specifically, the upper bracket 201 is arranged directly above the base 1, and the two side brackets 202 are arranged at the lower position on both sides of the base 1. The three brackets are in a triangular structure to achieve connection with the base 1, which can greatly improve the structural stability. For the upper bracket 201, the connection with the base 1 is achieved by two bolts and two nuts, so two shock-absorbing pads 4 are required to cooperate with the installation. The side bracket 202 only requires one bolt and one nut, that is, only one shock-absorbing pad 4 is required.

[0049] In some embodiments, the base 1 and the inner ring 3 are fixedly connected by welding, and an elastic member 6 is provided between the base 1 and the inner ring 3 .

[0050] For details, please refer to the attached Figure 3 The base 1 and inner ring 3 are connected by an annular weld. A small groove is provided between the base 1 and the inner ring 3, and an elastic member 6 is installed in the groove. Generally, the elastic member 6 is a rubber ring. Due to its elasticity, the rubber ring will be compressed during clamping, thus providing compensation for the external environment of the welded parts, thereby increasing the strength and density of the weld. This makes the welded structure more robust and able to withstand greater external and internal forces. In addition, the rubber ring has good elasticity and shock absorption properties, which can reduce vibration and noise during machine operation.

[0051] On the basis of the above embodiment, the material of the base 1 and the inner ring 3 are both DC01 cold-rolled low-carbon steel with a thickness of 1.5 mm.

[0052] Specifically, the base 1 and the inner ring 3 are both made of DC01, which is generally 1.5 mm thick. During the welding process of the inner ring 3, compared with aluminum alloy profiles, it has better reliability and a relatively high yield rate. Not only can the total mass of the flexible wind shield be reduced by 30%, but the cost can also be reduced by at least 60%.

[0053] In addition to the above-mentioned flexible wind shield, the present invention also provides a fan including the flexible wind shield disclosed in the above-mentioned embodiment. For the structures of other parts of the fan, please refer to the prior art and will not be described in detail herein.

[0054] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0055] The above is a detailed introduction to the flexible wind shield and fan provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only intended to help understand the method and core concept of the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, various improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A flexible wind shield, characterized in that: include: The base (1) is a ring-shaped structure, and the base (1) is connected to the bracket (2); The inner ring (3) is a tubular structure and is fixedly connected to the base body (1); A shock-absorbing pad (4) is provided between the base (1) and the bracket (2); the base (1) and the bracket (2) are detachably connected via the shock-absorbing pad (4).

2. The flexible wind shield according to claim 1, characterized in that: The shock-absorbing pad (4) comprises an upper bushing (401), a lower bushing (402), an upper bushing wire mesh ring (403) and a lower bushing wire mesh ring (404); the upper bushing wire mesh ring (403) and the lower bushing wire mesh ring (404) are arranged between the upper bushing (401) and the lower bushing (402); and the base (1) is arranged between the upper bushing wire mesh ring (403) and the lower bushing wire mesh ring (404).

3. The flexible wind shield according to claim 2, characterized in that: The upper bushing (401) and the lower bushing (402) are both annular structures with a perforation in the middle, and the shock-absorbing pad (4) is detachably connected to the bracket (2) via bolts (5) and nuts.

4. The flexible wind shield according to claim 3, characterized in that: The upper bushing (401) is sleeved on the lower bushing (402), and the upper bushing (401) and the lower bushing (402) are detachably connected. The upper bushing wire mesh ring (403) is sleeved on the outer periphery of the upper bushing (401), and the lower bushing wire mesh ring (404) is sleeved on the outer periphery of the lower bushing (402).

5. The flexible wind shield according to claim 4, characterized in that: An arc-shaped protrusion is provided on the base (1), and the shock-absorbing pad (4) is provided on the protrusion so that the central axis of the shock-absorbing pad (4) is parallel to the central axis of the inner ring (3).

6. The flexible wind shield according to claim 5, characterized in that: The cross-sections of the upper bushing (401) and the lower bushing (402) are both T-shaped structures, the protruding portion is provided with a through-hole, one end of the lower bushing (402) passing through the through-hole has the same shape and size as the through-hole, and one end of the upper bushing (401) is sleeved on the outer periphery of the lower bushing (402) and matched with the lower bushing (402).

7. The flexible wind shield according to claim 6, characterized in that: The bracket (2) comprises an upper bracket (201) and two side brackets (202); the upper bracket (201) is provided in cooperation with the two shock-absorbing pads (4); and the side bracket (202) is provided in cooperation with one shock-absorbing pad (4).

8. The flexible wind shield according to claim 1, characterized in that: The base body (1) and the inner ring (3) are fixedly connected by welding, and an elastic member (6) is provided between the base body (1) and the inner ring (3).

9. The flexible wind shield according to any one of claims 1 to 8, characterized in that: The base (1) and the inner ring (3) are both made of DC01 cold-rolled low-carbon steel with a thickness of 1.5 mm.

10. A fan comprising a flexible wind shield, characterized in that: The flexible wind protection ring is the flexible wind protection ring according to any one of claims 1 to 9.

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