Fan cushion block and engineering machinery

Abstract

The utility model discloses a fan cushion block and engineering machinery, the fan cushion block comprises a basic cushion block, the middle part of the basic cushion block is provided with a long shaft which extends forwards, a plurality of groups of combined cushion blocks which are sequentially distributed forwards are arranged in front of the basic cushion block, and the plurality of groups of combined cushion blocks are sleeved on the long shaft; the combined cushion block comprises two independent cushion blocks, and a shaft hole allowing the long shaft to penetrate through is defined by the two independent cushion blocks. A first connecting hole is formed in the edge of the basic cushion block, a second connecting hole is formed in the edge of the independent cushion block, and the first connecting hole and the second connecting hole can be connected through a connecting piece. The fan cushion block is reasonable in structural design, the insertion amount of the fan in the wind scooper can be conveniently adjusted according to test requirements so as to find the optimal insertion amount (the average wind speed of a radiator outlet is the highest) of the fan in the wind scooper, and therefore cost is lower, and workload is smaller.

Description

Technical Field

[0001] This utility model relates to the field of fan pad technology, and in particular to a fan pad and engineering machinery. Background Technology

[0002] The current mounting configuration for the engine, fan pad, air guide shroud, and radiator of loaders is typically as follows: the cooling fan is fixed to the engine pulley end via fan pads and mounting bolts. Because the fan pad size is fixed, the insertion depth of the cooling fan within the air guide shroud is also fixed. To obtain the optimal fan insertion depth (where the average air velocity at the radiator outlet is highest; for further research on fan insertion depth within the air guide shroud, refer to the paper "Simulation Study of Cooling Fan Insertion Depth in Air Guide Shroud of Engineering Machinery Based on STAR-CCM+") through experimentation, it is often necessary to verify by replacing the air guide shroud. This requires manufacturing different air guide shrouds, which is costly and involves a significant workload during disassembly and assembly. If the insertion depth is adjusted by replacing the fan pads, existing fan pads only have a few fixed sizes (lengths), which cannot meet the needs of testing various insertion depths, and disassembly and assembly are also cumbersome. Utility Model Content

[0003] The purpose of this utility model is to provide a fan pad to solve the problem that the insertion amount of the cooling fan in the air guide shroud of engineering machinery such as loaders cannot be adjusted by multiple sizes, and to solve the problem that it is difficult to obtain the optimal insertion amount of the fan in the air guide shroud through experiments.

[0004] To achieve the above objectives, the present invention provides a fan pad, including a base pad, a long shaft extending forward from the center of the base pad, and several sets of combined pads arranged sequentially forward from the front of the base pad, the combined pads being fitted onto the long shaft; each combined pad includes two independent pads, the two independent pads forming a shaft hole through which the long shaft can pass; the edge of the base pad has a first connecting hole, and the edge of each independent pad has a second connecting hole, the first connecting hole and the second connecting hole being connected by a connector.

[0005] Furthermore, the independent pad is a semi-circular pad.

[0006] Furthermore, the base pad is a circular pad.

[0007] Furthermore, the base pad and the independent pad are aluminum alloy or nylon pads.

[0008] Furthermore, the first connecting hole and the second connecting hole are bolt mounting holes, and the connecting element is a bolt.

[0009] Furthermore, the edge of the base pad is provided with four first connecting holes, and the edge of the combined pad is provided with four second connecting holes.

[0010] Furthermore, the edge of the base pad has four first hollow areas, which are spaced apart from the four first connecting holes; the edge of the combined pad has four second hollow areas, which are spaced apart from the four second connecting holes.

[0011] Furthermore, the thickness of the several groups of the combined pads distributed forward decreases sequentially.

[0012] Furthermore, the thickness of the base pad is 40-50mm, the length of the long axis is 180-200mm, and the thicknesses of the several groups of combined pads distributed forward are 20mm±1mm, 10mm±1mm, 5mm±1mm, and 2mm±1mm respectively.

[0013] This utility model also provides an engineering machine, including a radiator with an air guide shroud, an engine located behind the radiator, and a cooling fan located in front of the engine; it also includes a fan pad as described in any of the above technical solutions, the fan pad being disposed between the engine output shaft and the cooling fan, the connector fixing the cooling fan and the fan pad to the engine output shaft, and the cooling fan being inserted into the air guide shroud.

[0014] In summary, the technical solution of this utility model has the following beneficial effects: The structure of this utility model is reasonable. (1) A long shaft extending forward is provided in the middle of the base pad, and several sets of combined pads are arranged forward in sequence in front of the base pad. The several sets of combined pads are fitted on the long shaft. Thus, the fan pad can be arranged between the engine output shaft and the cooling fan. The long shaft is used to install other combined pads and to adjust the axial installation size of the cooling fan. (2) The combined pad includes two independent pads, and the two independent pads form a shaft hole through which the long shaft can pass. Thus, the axial size of the cooling fan installation can be adjusted by using the two independent pads together, which is convenient for disassembly and assembly. (3) A first connecting hole is provided on the edge of the base pad, and a second connecting hole is provided on the edge of the independent pad. The first connecting hole and the second connecting hole can be connected by a connector. Thus, the cooling fan and the fan pad can be fixed to the engine output shaft by the connector. As can be seen from the above analysis, compared with the prior art, the fan pad provided by this utility model can conveniently adjust the fan's insertion depth in the air guide shroud according to the test requirements (the convenience is reflected in the fact that when adjusting the fan insertion depth, it is not necessary to remove the fan; simply loosen the connector, move the fan on the long axis of the base pad, and then add or remove the combination pads as needed, adjust the size, and then tighten the connector). This allows for finding the optimal insertion depth of the fan in the air guide shroud (where the average wind speed at the radiator outlet is highest), resulting in lower costs and less workload. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the installation and matching of the fan pad of this utility model with the engine and cooling fan;

[0016] Figure 2 This is a schematic diagram of the installation and matching of the fan pad, connector, and cooling fan according to this utility model.

[0017] Figure 3 This is a three-dimensional structural diagram of the fan pad of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the fan pad of this utility model;

[0019] Figure 5 This is a three-dimensional structural diagram of the base pad of the fan pad of this utility model;

[0020] Figure 6 This is a three-dimensional structural diagram of the first type of independent pad of the fan pad of this utility model;

[0021] Figure 7 This is a three-dimensional structural diagram of the second type of independent pad of the fan pad of this utility model;

[0022] Figure 8This is a three-dimensional structural diagram of the third type of independent pad for the fan pad of this utility model;

[0023] Figure 9 This is a three-dimensional structural diagram of the fourth type of independent pad for the fan pad of this utility model;

[0024] Explanation of reference numerals in the attached drawings: 1-base pad, 101-long shaft, 102-first connecting hole, 103-first hollow area; 2-combined pad, 201-independent pad, 202-shaft hole, 203-second connecting hole, 204-second hollow area; 3-connector, 4-engine, 5-cooling fan. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model, but this does not constitute a limitation on the scope of protection of the present utility model.

[0026] In this utility model, for clearer description, the following explanation is provided: The observer faces the attached... Figure 1 In this observation, the left side of the observer is designated as rear, the right side as front, the front of the observer as left, the rear of the observer as right, the top of the observer as up, and the bottom of the observer as down. It should be noted that the terms "front end," "rear end," "left side," "right side," "middle," "above," and "below" used in this document indicate the orientation or positional relationship based on the accompanying drawings. These are merely for the purpose of clearly describing the present invention and do not indicate or imply that the structure or component referred to must have a specific orientation or be constructed in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used only for the purpose of clarity or simplification of description and should not be construed as indicating or implying relative importance or quantity.

[0027] See Figures 1 to 9This embodiment provides a fan pad, including a base pad 1, a long shaft 101 extending forward from the center of the base pad 1, and several sets of combined pads 2 arranged sequentially forward from the front of the base pad 1, the combined pads 2 being fitted onto the long shaft 101; the combined pad 2 includes two independent pads 201, the two independent pads 201 forming a shaft hole 202 through which the long shaft 101 can pass; the edge of the base pad 1 is provided with a first connecting hole 102, and the edge of the independent pad 201 is provided with a second connecting hole 203, the first connecting hole 102 and the second connecting hole 203 can be connected by a connector 3. Function: (1) By having a long shaft extending forward from the center of the base pad, and several sets of combined pads arranged sequentially forward from the front of the base pad, the fan pad can be arranged between the engine output shaft and the cooling fan, the long shaft is used to install other combined pads, and to adjust the axial installation dimensions of the cooling fan. (2) The combined pad includes two independent pads, which together form a shaft hole through which the long shaft can pass; thus, the axial dimension of the cooling fan can be adjusted by using the two independent pads together, which is convenient for disassembly and assembly. (3) The edge of the base pad is provided with a first connecting hole, and the edge of the independent pad is provided with a second connecting hole. The first connecting hole and the second connecting hole can be connected by a connector; thus, the cooling fan and the fan pad can be fixed to the engine output shaft by the connector. As can be seen from the above analysis, compared with the prior art, the fan pad provided by this utility model can be conveniently adjusted according to the test requirements (the convenience is reflected in the fact that when adjusting the fan insertion amount, it is not necessary to remove the fan, but only to loosen the connector, then move the fan on the long shaft of the base pad, and then add or remove the combined pads according to the requirements, adjust the size, and then tighten the connector) to find the optimal insertion amount of the fan in the air guide shroud (the average wind speed at the radiator outlet is the highest), so as to reduce the cost and workload.

[0028] Specifically, the independent pad 201 is a semi-circular pad. Function: By using two semi-circular pads of the same size together, a combined pad is formed, thereby adjusting the axial dimension of the fan installation. This makes it easier to install and remove the independent pad 201 on the long shaft.

[0029] Specifically, base pad 1 is a circular pad. Its purpose is to facilitate the rotation of the cooling fan.

[0030] Specifically, the base block 1 and the independent block 201 are made of aluminum alloy or nylon. Function: It is recommended that the base block 1 and the independent block 201 be made of low-density materials such as aluminum alloy or nylon, while ensuring strength.

[0031] Specifically, the first connecting hole 102 and the second connecting hole 203 are bolt mounting holes, and the connector 3 is a bolt. Function: The engagement of the bolt and screw mounting holes makes it easier to fix the cooling fan and fan pad assembly to the output end of the engine pulley.

[0032] Specifically, the edge of the base pad 1 is provided with four first connecting holes 102, and the edge of the combined pad 2 is provided with four second connecting holes 203. Function: The technical solution adopted by this utility model is to construct a test combined fan pad, which is arranged between the engine output shaft and the cooling fan, and the cooling fan and the fan pad assembly are fixed to the output end of the engine pulley with four long bolts.

[0033] Specifically, the edge of the base pad 1 has four first hollow areas 103, which are spaced apart from the four first connecting holes 102; the edge of the combined pad 2 has four second hollow areas 204, which are spaced apart from the four second connecting holes 203. Function: The four bolt mounting holes and the large hollow design are to reduce the weight of the fan pad.

[0034] Specifically, the thickness of the several sets of combined fan pads 2 distributed sequentially decreases. Function: This combined fan pad... Figures 5 to 9 As shown, it is composed of a base pad and several semi-circular pads. The length of the long shaft can be designed according to the actual fan's intended adjustment stroke. The thickness of several sets of combined pads 2 decreases sequentially, which makes it easier to adjust the fan's insertion amount in the air guide shroud and improves accuracy.

[0035] Specifically, the thickness of the base pad 1 is 40-50mm, the length of the main shaft 101 is 180-200mm, and the thicknesses of the several sets of combined pads 2 distributed forward are 20mm±1mm, 10mm±1mm, 5mm±1mm, and 2mm±1mm respectively. Function: In the axial direction, the recommended design length of the main shaft is 180-200mm, and the length of the mounting bolt through the first connecting hole 102 is approximately 50mm. Semi-circular pads of other sizes can also be designed according to the desired adjustment.

[0036] This utility model also provides a type of construction machinery, including a radiator with an air guide shroud, an engine 4 located behind the radiator, and a cooling fan 5 located in front of the engine 4; it also includes a fan pad according to any of the above technical solutions, the fan pad being disposed between the output shaft of the engine 4 and the cooling fan 5, and a connector 3 fixing the cooling fan 5 and the fan pad to the output shaft of the engine 4, with the cooling fan 5 inserted into the air guide shroud. Of course, the fan pad of this utility model can be applied to the cooling systems of most construction machinery, and is not limited to loaders (others such as excavators, etc.).

[0037] In summary, the combined fan pad provided by this utility model allows for convenient adjustment of the fan's insertion depth in the air guide shroud according to experimental needs (the convenience is reflected in the fact that when adjusting the fan insertion depth, it is not necessary to remove the fan; simply loosen the fan mounting bolts, move the fan on the long axis of the base pad, and then add or remove semi-circular pads as needed, adjust the dimensions, and then tighten the mounting bolts). This allows for finding the optimal fan insertion depth in the air guide shroud (where the average wind speed at the radiator outlet is highest), resulting in lower costs and less workload.

[0038] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A fan pad, comprising a base pad (1), characterized in that: The base pad (1) has a long shaft (101) extending forward in the middle. Several sets of combined pads (2) are arranged in front of the base pad (1) in sequence. The several sets of combined pads (2) are fitted on the long shaft (101). The combined pad (2) includes two independent pads (201). The two independent pads (201) form a shaft hole (202) through which the long shaft (101) can pass. The edge of the base pad (1) is provided with a first connecting hole (102). The edge of the independent pad (201) is provided with a second connecting hole (203). The first connecting hole (102) and the second connecting hole (203) can be connected by a connector (3).

2. The fan pad according to claim 1, characterized in that: The independent pad (201) is a semi-circular pad.

3. The fan pad according to claim 1, characterized in that: The base pad (1) is a circular pad.

4. The fan pad according to claim 1, characterized in that: The base pad (1) and the independent pad (201) are aluminum alloy or nylon pads.

5. A fan pad according to any one of claims 1 to 4, characterized in that: The first connecting hole (102) and the second connecting hole (203) are bolt mounting holes, and the connector (3) is a bolt.

6. A fan pad according to claim 5, characterized in that: The edge of the base pad (1) is provided with four first connecting holes (102), and the edge of the combined pad (2) is provided with four second connecting holes (203).

7. A fan pad according to claim 6, characterized in that: The edge of the base pad (1) is provided with four first hollow areas (103), and the four first hollow areas (103) are spaced apart from the four first connecting holes (102); the edge of the combined pad (2) is provided with four second hollow areas (204), and the four second hollow areas (204) are spaced apart from the four second connecting holes (203).

8. A fan pad according to any one of claims 1 to 4, characterized in that: The thickness of the several groups of the combined pads (2) distributed forward decreases sequentially.

9. A fan pad according to claim 8, characterized in that: The thickness of the base pad (1) is 40-50mm, the length of the long axis (101) is 180-200mm, and the thicknesses of the several sets of combined pads (2) distributed in sequence are 20mm±1mm, 10mm±1mm, 5mm±1mm, and 2mm±1mm respectively.

10. An engineering machine, comprising a radiator, characterized in that: The radiator is provided with a wind guide cover, and an engine (4) is provided behind the radiator. A cooling fan (5) is provided in front of the engine (4). The radiator also includes a fan pad as described in any one of claims 1 to 9. The fan pad is disposed between the output shaft of the engine (4) and the cooling fan (5). The connector (3) fixes the cooling fan (5) and the fan pad to the output shaft of the engine (4). The cooling fan (5) is inserted into the wind guide cover.

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