A large tonnage excavator radiator guard

Abstract

The utility model discloses a kind of protective devices for large-tonnage excavator radiator, belong to radiator protection technical field, including frame, radiator core, fan being set in the frame, the frame is equipped with protective device, the protective device includes first protective net, second protective net and the protective cover being set between first protective net and second protective net;Protect radiator core, fan in frame by using protective device to protect;The protective device of the utility model adopts more solid structure design, and enhances the protective strength and reinforcing strength, completely satisfies the high-strength requirement of radiator protection of large-tonnage excavator under complex working condition, guarantees the reliability of equipment in harsh environment.

Description

Technical Field

[0001] This utility model belongs to the technical field of radiator protection structure, specifically relating to a protective device for the radiator of a large-tonnage excavator. Background Technology

[0002] Radiators are common cooling devices on excavators, capable of quickly and effectively cooling the engine. Traditional radiators have a fan mounted on the back to accelerate heat dissipation and exhaust air. However, excavators operate in complex road environments with significant up-and-down bumps during operation. Since the fan housing is bolted to the radiator, prolonged exposure to high-frequency bumps can cause the bolts to loosen, leading to the fan separating from the radiator and thus affecting the radiator's cooling effect on the engine.

[0003] Furthermore, the protective shells of existing small-to-medium tonnage (40-50 ton) excavator radiators are welded with thin steel bars. When the same protective shell is used on the radiators of large-tonnage (200 ton) excavators, the protective shell is prone to shaking due to the large vibration amplitude of the excavator. Moreover, the protective shell is not strong enough and the steel bars are not strong enough. During the operation of the excavator, foreign objects such as stones and soil are likely to hit the protective shell, causing it to be deformed under pressure. At the same time, foreign objects such as stones and soil can also fly into the fan, causing the fan to malfunction and the radiator to fail to cool down effectively, thus affecting the heat dissipation effect. Utility Model Content

[0004] In response to the problems mentioned in the background art, this utility model proposes a protective device for the radiator of a large-tonnage excavator, which further enhances the protective effect of the radiator protective shell and at the same time prevents the protective device from being violently shaken.

[0005] Technical solution: To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A protective device for a radiator of a large-tonnage excavator includes a frame, a radiator core and a fan disposed within the frame, and a protective device provided on the frame. The protective device includes a first protective net, a second protective net, and a protective cover disposed between the first and second protective nets; the protective device protects the radiator core and fan within the frame.

[0007] Preferably, the frame includes an outer shell, a rectangular frame, and a U-shaped shell; the rectangular frame is disposed at the front end of the outer shell, and the U-shaped shell is sleeved on the upper end of the rectangular frame; the outer shell, the rectangular frame, and the U-shaped shell are fixed together by bolts.

[0008] Preferably, two support feet are provided at the bottom of the rectangular frame, and the support feet are connected to the rectangular frame by bolts.

[0009] Preferably, both the first and second protective nets are semi-circular.

[0010] Preferably, the first protective net includes a U-shaped support frame, protective reinforcing bars, and protective steel plates; multiple semi-circular protective reinforcing bars are spaced apart from the inside to the outside on the U-shaped support frame, and multiple semi-circular protective reinforcing bars are spaced apart on one side of the U-shaped support frame along the position facing the fan; the protective steel plates are L-shaped and spaced apart on the protective reinforcing bars.

[0011] As a preferred option, protective mounting feet are provided on both the U-shaped support frame and the protective steel plate.

[0012] Preferably, the protective mounting foot is in contact with the surface of the outer shell, a first circular hole is provided on the protective mounting foot, and a second circular hole corresponding to the protective mounting foot is provided on the outer shell.

[0013] Beneficial effects: Compared with the prior art, the present invention has the following advantages:

[0014] (1) The protective device of this utility model, through the first protective net, the second protective net and the protective cover, combined with the semi-circular protective steel bars and the protective steel plate, can effectively block foreign objects such as stones and soil from flying into the protective shell during the excavator's operation, avoid damage to the fan and radiator from impact, significantly extend the service life of the equipment, and reduce the downtime maintenance costs and time caused by foreign object intrusion.

[0015] (2) Unlike the thin steel bar welded protective shell used for radiators of small and medium tonnage excavators, the protective device of this utility model adopts a more robust structural design, which enhances the protective force and steel bar strength, fully meets the high strength requirements of large tonnage excavators for radiator protection under complex working conditions, and ensures the reliability of the equipment in harsh environments.

[0016] (3) The protective steel bars and steel plates of this utility model are set at intervals. While ensuring the protective strength, sufficient ventilation gaps are maintained to ensure smooth fan exhaust, so that the fan can continuously and efficiently cool the radiator and improve the overall performance and stability of the excavator. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the protective device for the radiator of a large-tonnage excavator according to Embodiment 1 of this utility model;

[0018] Figure 2 This is a front view of the frame of Embodiment 1 of this utility model;

[0019] Figure 3 This is a front view of the heat sink core of Embodiment 1 of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the first protective net in Embodiment 1 of this utility model;

[0021] Figure 5 This is a schematic diagram of the protective device according to Embodiment 2 of this utility model;

[0022] In the diagram: 1. Frame; 11. Outer shell; 12. Rectangular frame; 13. U-shaped shell; 2. Radiator core; 3. Second circular hole; 4. Fan; 5. First protective net; 51. U-shaped support frame; 52. Protective steel plate; 53. Protective reinforcing bar; 54. Protective mounting foot; 6. Second protective net; 7. Protective cover; 71. Circular hole; 72. Dustproof net; 8. First circular hole; 9. Support foot; 10. Protective frame; 14. Third protective net; 15. Ventilation hole; 16. Fastener; 17. Fixed mounting foot; 18. Third circular hole; 19. Fourth circular hole; 20. Ring-shaped protective steel plate. Detailed Implementation

[0023] The present invention will be further illustrated below with reference to specific embodiments. The embodiments are implemented based on the technical solution of the present invention. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0024] Example 1

[0025] like Figures 1-4 As shown, the protective device for the radiator of a large-tonnage excavator provided in this embodiment mainly includes a frame 1, a radiator core 2, a fan 4, and a protective device. The radiator core 2 and the fan 4 are installed inside the frame 1, and the protective device is located on the rear side of the frame 1. The protective device is used to prevent foreign objects such as stones and soil from flying into the frame 1 during the excavator's movement, thereby protecting the radiator core 2 and the fan 4 from damage. At the same time, it improves the protective force of the protective device and enhances the strength of the steel reinforcement of the protective device.

[0026] In this embodiment, the height of the frame 1 ranges from 1.5m to 2.6m, and the width, thickness, and length of the frame 1 are adjusted according to the volume of the radiator core 2.

[0027] In this embodiment, as Figures 1-3As shown, the frame 1 includes an outer shell 11, a frame 12, and a U-shaped shell 13. The outer shell 11 has a convex streamlined structure and multiple mounting holes are provided around its perimeter. The rectangular frame 12 is located at the front end of the outer shell 11, and multiple mounting holes are provided at the contact end between the rectangular frame 12 and the outer shell 11. The mounting holes on the rectangular frame 12 are the same size as those on the outer shell 11 and are corresponding in position. The U-shaped shell 13 is fitted onto the upper end of the rectangular frame 12, and multiple mounting holes of the same size and corresponding in position are provided on both the rectangular frame 12 and the U-shaped shell 13. The outer shell 11, the rectangular frame 12, and the U-shaped shell 13 are connected by bolts passing through the corresponding mounting holes.

[0028] In this embodiment, an opening is provided on one side of the outer shell 11, and a protective device is installed on the opening to provide full protection for the opening, that is, to further protect the heat sink core 2 and the fan 4 inside the frame 1.

[0029] In this embodiment, the length of the U-shaped shell 13 is the same as the length of the rectangular frame 12, and the width of the U-shaped shell 13 is slightly larger than the width of the rectangular frame 12; the length of the outer shell 11 is less than the length of the rectangular frame 12.

[0030] In this embodiment, two support feet 9 are provided at the bottom of the rectangular frame 12. The support feet 9 are connected to the rectangular frame 12 by bolts, and the support feet 9 provide stable support for the frame 1.

[0031] In this embodiment, as Figure 3 As shown, the heat sink core 2 is embedded in the rectangular frame 12, and the fan 4 is set inside the outer shell 11.

[0032] like Figures 1-4 As shown, the protective device includes a first protective net 5, a second protective net 6, and a protective cover 7 disposed between the first protective net 5 and the second protective net 6.

[0033] The first protective net 5 and the second protective net 6 are both semi-circular, and the first protective net 5 and the second protective net 6 have the same structure; the protective cover 7 is rectangular and is fixed to the outer surface of the outer shell 11 by bolts. A circular hole 71 is opened in the middle of the protective cover 7, so that the output end of the motor can pass through the circular hole 71 and connect to the fan 4 inside the outer shell 11. Thus, by starting the motor, the fan 4 is driven to rotate, generating airflow. The fan 4 draws air out to effectively dissipate heat from the excavator's radiator.

[0034] Rectangular dustproof nets 72 are provided on both sides of the protective cover 7. The dustproof nets 72 are used to block smaller foreign objects such as gravel and soil from entering the outer shell 11, thus protecting the radiator core 2 and the fan 4.

[0035] like Figure 4As shown, the first protective net 5 includes a U-shaped support frame 51, a protective steel plate 52, protective reinforcing bars 53, and protective mounting feet 54; the protective reinforcing bars 53 are semi-circular and there are multiple of them. Multiple semi-circular protective reinforcing bars 53 are spaced apart from the inside to the outside on one side of the bottom of the U-shaped support frame 51, and multiple semi-circular protective reinforcing bars 53 are spaced apart on one side of the U-shaped support frame 51 along the position facing the fan 4; the protective steel plate 52 is L-shaped and there are multiple of it, which are spaced apart on the protective reinforcing bars 53.

[0036] In this embodiment, protective mounting feet 54 are provided on both sides of the U-shaped support frame 51 and on the protective steel plate 52, and the protective mounting feet 54 are in contact with the surface of the outer shell 11. A first circular hole 8 is provided on the protective mounting foot 54, and a second circular hole 3 with the same shape as the protective mounting foot 54 is provided on the outer shell 11. The protective mounting feet 54 are fixed to the outer shell 11 by bolts passing through the first circular hole 8 and the second circular hole 3, thereby fixing the first protective net 5 and the second protective net 6 to the outer shell 11.

[0037] In this embodiment, the protective steel plate 52 is welded onto the protective reinforcing bar 53, and both the protective steel plate 52 and the protective reinforcing bar 53 are welded together with the U-shaped support frame 51.

[0038] The protective device in this embodiment is suitable for the radiator of a 200-ton excavator.

[0039] The protective device of this utility model provides enveloping protection for the fan 4. Protective reinforcing bars 53 and protective steel plates 52 constitute the main protective layer. The protective reinforcing bars 53 can prevent larger foreign objects such as stones and clods of earth from flying into the fan 4 area, dispersing the impact force through their semi-circular structure. They also effectively prevent the operator's clothing, fingers, etc., from being caught when the fan 4 rotates, eliminating safety hazards. The protective steel plates 52 further enhance the structural strength, while also providing secondary protection against smaller foreign objects such as gravel, preventing them from passing through the gaps in the reinforcing bars and damaging the fan 4 or radiator. Furthermore, the protective steel plates 52 further enhance the stability of the protective device, preventing strong shaking of the device when the excavator is in motion.

[0040] The protective steel bars 53 and the protective steel plates 52 are set at intervals to ensure the protective strength while maintaining sufficient ventilation gaps to ensure that the fan 4 exhausts air smoothly and does not affect the heat dissipation efficiency of the radiator.

[0041] The working principle or usage process of this utility model is as follows: First, the outer shell 11, the rectangular frame 12, and the U-shaped shell 13 are assembled into a frame 1. Then, the frame 1 is fixed outside the heat sink core 2, and the fan 4 is installed inside the frame 1 to ensure that the position is fixed. Then, the first protective net 5 and the second protective net 6 are aligned with the upper and lower ends of the opening on the surface of the outer shell 11, respectively. The protective mounting feet 54 of the first protective net 5 and the second protective net 6 are attached to the surface of the outer shell 11. The first protective net 5 and the second protective net 6 are fixed to the outer shell 11 by bolts passing through the first round hole 8 on the protective mounting foot 54 and the second round hole 3 on the outer shell 11. The protective cover 7 and the outer shell 11 are provided with corresponding mounting holes. The protective cover 7 is fixed to the outer shell 11 by bolts and is located in the middle of the first protective net 5 and the second protective net 6. The center of the round hole 71 on the protective cover 7 is aligned with the center of the fan 4, so that the output end of the motor can pass through the round hole 71 and connect to the fan 4 inside the outer shell 11. Thus, by starting the motor, the fan 4 is driven to rotate, generating airflow to effectively dissipate heat from the radiator core 2 of the excavator.

[0042] The protective steel bars 53 and protective steel plates 52 of the protective device block foreign objects such as stones and soil that are splashed during operation, preventing them from entering the outer shell 11 and impacting the fan 4 or radiator core 2. When the excavator is bumpy, the multi-point bolt fixing structure and rigid frame 1 of the protective device can reduce the impact of vibration on the connection parts and prevent the protective device from shaking violently.

[0043] Example 2

[0044] The difference between this embodiment and Embodiment 1 is that: Figure 5 As shown, in this embodiment, the protective device includes a protective frame 10, a third protective net 14, a vent 15, a fastener 16, and a fixed mounting foot 17.

[0045] The protective frame 10 is rectangular with an opening on one side. Multiple inclined ventilation holes 15 are provided on the side end of the protective frame 10. A circular opening is provided at the rear end of the protective frame 10. Multiple fasteners 16 are provided on the protective frame 10, and each fastener 16 has a third circular hole 18. A third protective net 14 is located at the rear end of the protective frame 10. The third protective net 14 is circular and includes a protective steel plate 52, protective reinforcing bars 53, protective mounting feet 54, and annular protective steel plate 20. Multiple circular protective reinforcing bars 53 are present on the annular protective steel plate 20. Multiple circular protective steel bars 53 are arranged at intervals from the inside to the outside on the outer side. There are multiple protective steel plates 52, which are arranged at intervals on the protective steel bars 53. Protective mounting feet 54 are provided on the protective steel plates 52. A fourth circular hole 19 is provided on the protective mounting feet 54. The fourth circular hole 19 on the protective mounting feet is the same size as the third circular hole 18 on the fixing member 16 and the corresponding position. The third protective net 14 is fixed to the protective frame 10 by bolts passing through the third circular hole 18 on the fixing member 16 and the fourth circular hole 19 on the protective mounting feet 54.

[0046] In this embodiment, the protective steel plate 52 is rectangular.

[0047] In this embodiment, the center point of the annular protective steel plate 20 on the third protective net 14 corresponds to the center point of the fan 4, so that the output end of the motor passes through the annular protective steel plate 20 and connects to the fan 4 inside the outer shell 11, thereby driving the fan 4 to rotate by starting the motor, generating airflow, and the fan 4 draws air out to effectively dissipate heat from the excavator's radiator core 2.

[0048] In this embodiment, the protective steel plate 52 is welded to the protective reinforcing bar 53 and the ring-shaped protective steel plate 20.

[0049] Multiple mounting feet 17 are provided on the side of the protective frame 10, and bolts are used to fix the frame to the outer shell 11.

[0050] In this embodiment, the size of the protective frame 10 is larger than the size of the circular opening on one side of the outer shell 11. The protective frame 10 in this embodiment can cover and protect the opening.

[0051] The working principle or usage process of this utility model is as follows: First, the outer shell 11, rectangular frame 12, and U-shaped shell 13 are assembled into a frame 1. Then, the radiator core 2 and fan 4 are installed into the frame 1, ensuring their positions are fixed. Then, the third protective net 14 is fixed to the protective frame 10 by bolts passing through the third round hole 18 on the fixing member 16 and the fourth round hole 19 on the protective mounting foot 54. Multiple fixed mounting feet 17 are provided on the side of the protective frame 10, and bolts are used to fix it to the outer shell by passing through the fixed mounting feet 17. The center point of the annular protective steel plate 20 on the third protective net 14 corresponds to the center point of the fan 4, so that the output end of the motor passes through the annular protective steel plate 20 and connects to the fan 4 inside the outer shell 11. Thus, by starting the motor, the fan 4 is driven to rotate, generating airflow. The fan 4 draws air outward to effectively dissipate heat from the excavator's radiator core 2.

[0052] In this embodiment, the protective frame 10, protective steel bar 53, and protective steel plate 52 block foreign objects such as stones and soil splashed during operation, preventing them from entering the outer shell 11 and impacting the fan 4 or radiator core 2. When the excavator is bumpy, the multi-point bolt fixing structure and rigid frame 1 of the protective device can reduce the impact of vibration on the connection parts and prevent the protective device from shaking violently.

[0053] It should be noted that this embodiment is implemented in the same way as embodiment 1 in terms of principle and technical effect. For the sake of brevity, any parts not mentioned in this embodiment can be referred to the corresponding content in embodiment 1.

[0054] The above description is only a preferred embodiment of the present 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 the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A protective device for a radiator of a large-tonnage excavator, comprising a frame (1), a radiator core (2) and a fan (4) disposed within the frame (1), characterized in that, The frame (1) is provided with a protective device, which includes a first protective net (5), a second protective net (6) and a protective cover (7) disposed between the first protective net (5) and the second protective net (6); the radiator core (2) and fan (4) inside the frame (1) are protected by the protective device.

2. The protective device for the radiator of a large-tonnage excavator according to claim 1, characterized in that: The frame (1) includes an outer shell (11), a rectangular frame (12), and a U-shaped shell (13); the rectangular frame (12) is located at the front end of the outer shell (11), and the U-shaped shell (13) is sleeved on the upper end of the rectangular frame (12). The outer shell (11), the rectangular frame (12), and the U-shaped shell (13) are fixed together by bolts.

3. The protective device for the radiator of a large-tonnage excavator according to claim 2, characterized in that: Two support feet (9) are provided at the bottom of the rectangular frame (12), and the support feet (9) are connected to the rectangular frame (12) by bolts.

4. The protective device for the radiator of a large-tonnage excavator according to claim 1, characterized in that: Both the first protective net (5) and the second protective net (6) are semi-circular.

5. The protective device for the radiator of a large-tonnage excavator according to claim 4, characterized in that: The first protective net (5) includes a U-shaped support frame (51), protective steel bars (53), and protective steel plate (52); multiple semi-circular protective steel bars (53) are spaced apart from the inside to the outside on the U-shaped support frame (51), and multiple semi-circular protective steel bars (53) are spaced apart on one side of the U-shaped support frame (51) along the position facing the fan (4); the protective steel plate (52) is L-shaped and is spaced apart on the protective steel bars (53).

6. The protective device for the radiator of a large-tonnage excavator according to claim 5, characterized in that: Protective mounting feet (54) are provided on both the U-shaped support frame (51) and the protective steel plate (52).

7. The protective device for the radiator of a large-tonnage excavator according to claim 6, characterized in that: The protective mounting foot (54) is attached to the surface of the outer shell (11). A first round hole (8) is provided on the protective mounting foot (54), and a second round hole (3) corresponding to the protective mounting foot (54) is provided on the outer shell (11).

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