Hydraulic oil tank with sound guide and noise reduction device and engineering machinery

Abstract

The utility model discloses a hydraulic oil tank with a sound guide and noise reduction device and engineering machinery. The hydraulic oil tank comprises an oil tank body, at least one cooling fan and the sound guide and noise reduction device. The oil tank body is used for storing hydraulic oil; at least one cooling fan is mounted at the top of the oil tank body; the sound guide and noise reduction device is installed on the top of the oil tank body and wraps all the cooling fans, noise generated by the cooling fans is absorbed and reduced, then the noise is guided out to outside air, the purpose of reducing the noise of the cooling fans is achieved, and therefore complaints of operators in a control room are reduced.

Description

Technical Field

[0001] The utility model relates to a hydraulic oil tank with a sound guiding and noise reducing device, belonging to the technical field of hydraulic oil tanks. Background Art

[0002] The hydraulic oil radiator on construction machinery is installed inside the hydraulic oil tank, and a cooling fan is installed above the hydraulic oil tank for blowing air for heat dissipation. Since the noise generated during the operation of the cooling fan is relatively large, the noise affects the operators in the control room, thereby affecting the normal work of the operators. Summary of the Invention

[0003] According to the deficiencies of the prior art, the utility model provides a hydraulic oil tank with a sound guiding and noise reducing device, which can first absorb and reduce the noise generated by the cooling fan through a sound absorbing pad, then transmit the noise upward through a sound guiding cover to a height position higher than the control room, and finally direct the noise generated by the cooling fan to one side away from the control room through the grille at the top, so as to achieve the purpose of reducing the noise of the cooling fan, thereby reducing the complaints of the operators in the control room.

[0004] The utility model is realized according to the following technical scheme:

[0005] In a first aspect, the utility model provides a hydraulic oil tank with a sound guiding and noise reducing device, comprising:

[0006] An oil tank body for storing hydraulic oil;

[0007] At least one cooling fan installed on the top of the oil tank body;

[0008] A sound guiding and noise reducing device installed on the top of the oil tank body and wrapping all the cooling fans, first absorbing and reducing the noise generated by the cooling fans, and then exporting the noise to the outside air.

[0009] In some embodiments, the sound guiding and noise reducing device comprises:

[0010] A sound guiding component installed on the oil tank body, and the cooling fan is located in the sound guiding component to guide the noise generated by the cooling fan upward;

[0011] A sound absorbing component installed in the sound guiding component to absorb and reduce the noise generated by the cooling fan.

[0012] In some embodiments, the sound guiding component is a sound guiding cover in a barrel shape, whose height exceeds the height of the top of the control room, and guides the noise generated by the cooling fan to a position higher than the control room for export.

[0013] In some embodiments, the top opening direction of the sound guide cover faces away from the control room, guiding the noise generated by the cooling fan to the side away from the control room for export.

[0014] In some embodiments, the sound guide component is a sound guide cover with a barrel-shaped structure, and a ventilation device whose outer contour matches its inner contour is installed at the top opening of the sound guide cover.

[0015] In some embodiments, the ventilation device is composed of at least one grille; the grille is mainly formed by welding a pair of oppositely arranged L-shaped plates, a plurality of partition plates arranged at intervals from top to bottom between the two L-shaped plates, and a plurality of support plates arranged between adjacent partition plates; a plurality of through holes are provided on the L-shaped plates, and a mounting plate is fixed at the inner edge of the top opening of the sound guide cover. Threaded holes corresponding to the through holes are provided on the mounting plate, and the grille is fixed to the mounting plate by screws.

[0016] In some embodiments, the number of at least one grille is N, where N is an integer not less than 2, and a plurality of grilles are installed side by side at the top opening of the sound guide cover; N - 1 triangular brackets are provided inside the top opening of the sound guide cover to support the splicing position of two grilles; the mounting plate is provided on the triangular bracket, and the grille is fixed to the mounting plate by screws.

[0017] In some embodiments, the sound guide component is a sound guide cover with a barrel-shaped structure; a plurality of U-shaped handles are welded at intervals along the circumferential direction at the middle part of the outer circumferential surface of the sound guide cover; a circle of spaced stiffening plates is welded along the circumferential direction at the bottom of the outer circumferential surface of the sound guide cover.

[0018] In some embodiments, the sound absorption component is a sound absorption pad made of sound absorption material, which is arranged at the position where the bottom of the sound guide component contacts the hydraulic oil tank and on the entire inner side surface of the sound guide component.

[0019] In some embodiments, a plurality of threaded seats are welded on the inner side surface of the sound guide component; circular holes are provided at positions corresponding to the threaded seats on the sound absorption pad; the back surface of the sound absorption pad is an adhesive surface, which is pasted on the inner side surface of the sound guide component, and a pressing plate is placed on the sound absorption pad and fixed by the cooperation of bolts and the threaded seats.

[0020] In a second aspect, the present invention provides a construction machinery equipped with the above hydraulic oil tank with a sound guide and noise reduction device.

[0021] Advantages of the present invention:

[0022] The utility model can reduce the noise generated by the cooling fan through a sound guiding and noise reduction device. First, the noise is absorbed and reduced by a sound absorption pad, and then it is transmitted upward through a sound guiding cover to a position above the control room roof. Under the guidance of the top grille, the noise is led out towards the side away from the control room, thereby reducing the impact of the noise generated by the cooling fan on the operators in the control room and reducing the complaints of the operators. Brief Description of the Drawings

[0023] The drawings, as a part of the utility model, are used to provide a further understanding of the utility model. The schematic embodiments and descriptions thereof are used to explain the utility model, but do not constitute an improper limitation to the utility model. Obviously, the drawings described below are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0024] In the drawings:

[0025] Figure 1 is a perspective view of a preferred embodiment of the sound guiding and noise reduction device of the utility model;

[0026] Figure 2 is a perspective view of a preferred embodiment of the sound guiding cover of the utility model;

[0027] Figure 3 is a schematic view of the sound absorption pad of the utility model installed on the inner side surface of the sound guiding cover;

[0028] Figure 4 is a perspective view of a preferred embodiment of the grille of the utility model;

[0029] Figure 5 is an overall schematic view of a hydraulic oil tank with a sound guiding and noise reduction device of the utility model;

[0030] Figure 6 is an exploded schematic view of a hydraulic oil tank with a sound guiding and noise reduction device of the utility model.

[0031] Reference numerals in the drawings: 1, sound guiding cover; 1-1, U-shaped handle; 1-2, rib plate; 1-3, threaded seat; 1-4, mounting plate, 2, sound absorption pad; 3, grille; 3-1, partition plate; 3-2, L-shaped plate; 4, pressing plate; 5, bolt; 6, oil tank body; 7, cooling fan.

[0032] It should be noted that these drawings and text descriptions are not intended to limit the scope of the concept of the utility model in any way, but to illustrate the concept of the utility model to those skilled in the art by referring to specific embodiments. Detailed Embodiments

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will, in conjunction with the accompanying drawings in the embodiments of the present utility model, clearly and completely describe the technical solutions in the embodiments. The following embodiments are used to illustrate the present utility model but are not used to limit the scope of the present utility model.

[0034] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0035] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0036] As Figure 5 、 Figure 6 shown, the present utility model provides a hydraulic oil tank with a sound guiding and noise reducing device, including an oil tank body 6, at least one cooling fan 7, and a sound guiding and noise reducing device; the oil tank body 6 is used for storing hydraulic oil; at least one cooling fan 7 is installed on the top of the oil tank body 6; the sound guiding and noise reducing device is installed on the top of the oil tank body 6 and wraps all the cooling fans 7, first absorbing and reducing the noise generated by the cooling fans 7, and then guiding the noise to the outside air.

[0037] The above-mentioned sound guiding and noise reducing device will be further described below.

[0038] As Figure 1 shown, the sound guiding and noise reducing device includes a sound guiding component and a sound absorbing component; the sound guiding component is installed on the oil tank body 6, and the cooling fan 7 is located in the sound guiding component, guiding the noise generated by the cooling fan 7 upward; the sound absorbing component is installed in the sound guiding component to absorb and reduce the noise generated by the cooling fan 7.

[0039] The above-mentioned sound guiding component will be further described below.

[0040] As Figure 2 shown, the sound guiding component is a sound guiding cover 1 with a barrel-shaped structure, whose height exceeds the height of the top of the control room, guiding the noise generated by the cooling fan 7 to a position higher than the control room for export.

[0041] A further solution, such as Figure 2 shown, the top opening direction of the sound guide cover 1 faces away from the control room side, guiding the noise generated by the cooling fan 7 to the side away from the control room for export.

[0042] Such as Figure 1 shown, the sound guide component is a sound guide cover 1 with a barrel-shaped structure, and a ventilation device with an outer contour matching its inner contour is installed at the top opening of the sound guide cover 1.

[0043] A further solution, such as Figure 1 、 Figure 4 shown, the ventilation device consists of at least one grille 3. In addition to playing a guiding role, the grille 3 can also prevent foreign objects from entering the interior of the sound guide cover 1. The grille 3 is mainly composed of a pair of L-shaped plates 3-2 facing each other, a plurality of partition plates 3-1 arranged between the two L-shaped plates 3-2 at intervals from top to bottom, and a plurality of support plates arranged between adjacent partition plates 3-1 and welded together; a plurality of through holes are provided on the L-shaped plates 3-2, and a mounting plate 1-4 is fixed at the inner edge of the top opening of the sound guide cover 1. Threaded holes corresponding to the through holes are provided on the mounting plate 1-4, and the grille 3 is fixed on the mounting plate 1-4 by screws.

[0044] A further solution, such as Figure 1 、 Figure 2 、 Figure 4 shown, the number of at least one grille 3 is N, where N is an integer not less than 2, and a plurality of grilles 3 are installed side by side at the top opening of the sound guide cover 1; N-1 triangular brackets are provided inside the top opening of the sound guide cover 1 to support the splicing part of two grilles 3; mounting plates 1-4 are provided on the triangular brackets, and the grilles 3 are fixed on the mounting plates 1-4 by screws.

[0045] A further solution, such as Figure 1 、 Figure 2 shown, the sound guide component is a sound guide cover 1 with a barrel-shaped structure; a plurality of U-shaped handles 1-1 are welded at intervals along the circumferential direction in the middle part of the outer circumferential surface of the sound guide cover 1, facilitating the handling of the sound guide cover 1 during transportation and installation; a circle of spaced stiffening plates 1-2 are welded along the circumferential direction at the bottom of the outer circumferential surface of the sound guide cover 1 to reinforce and support the sound guide cover 1, ensuring that the sound guide cover 1 can be more stable after installation.

[0046] The above sound absorption components are further described below.

[0047] Such as Figure 3As shown in the figure, the sound-absorbing component is a sound-absorbing pad 2 made of sound-absorbing material. On the one hand, the sound-absorbing pad 2 is arranged at the position where the bottom of the sound guide cover 1 contacts the hydraulic oil tank to prevent sound from leaking out at the connection. On the other hand, the sound-absorbing pad 2 is arranged on the entire inner side surface of the sound guide cover 1. The sound-absorbing pad 2 can absorb part of the noise generated by the cooling fan 7 and reduce the noise generated by the cooling fan 7. The remaining noise is transmitted upward through the sound guide cover 1 to the grille 3 at the top. The opening direction of the grille 3 is towards the side away from the control room, and the noise generated by the cooling fan 7 is guided by the grille 3 to the side away from the control room, thereby reducing the impact of the noise on the operator in the control room.

[0048] A further solution is as Figure 3 As shown in the figure, a plurality of threaded seats 1-3 are welded on the inner side surface of the sound guide cover 1, and circular holes are opened in the sound-absorbing pad 2 at positions corresponding to the threaded seats 1-3. The back surface of the sound-absorbing pad 2 is an adhesive surface, which is pasted on the inner side surface of the sound guide cover 1, and the pressing plate 4 is placed on the sound-absorbing pad 2 through the cooperation of the bolt 5 and the threaded seat 1-3 for fixation, ensuring that the sound-absorbing pad 2 is pasted more firmly.

[0049] In summary, the present invention provides a hydraulic oil tank with a sound guide and noise reduction device. When the cooling fan 7 generates noise during operation, the noise generated by the cooling fan 7 can be led out to the side away from the control room through the sound guide cover 1. At the same time, a sound-absorbing pad 2 is pasted on the inner circumference of the sound guide cover 1 to absorb the noise generated by the cooling fan 7. The grille 3 at the top of the sound guide cover 1 is angled towards the side away from the control room, allowing the noise to be led out according to the orientation of the grille 3; in addition, the grille 3 can also play a role in blocking foreign objects and preventing falling stones. In the present invention, first, the sound-absorbing pad 2 inside the sound guide cover 1 absorbs the sound, and then through the guidance of the grille 3 at the top of the sound guide cover 1, the noise is led out towards the side away from the control room, thereby reducing the noise in the control room.

[0050] The construction machinery provided by the present invention will be described below. The construction machinery described below can be mutually corresponded and referred to with the hydraulic oil tank with a sound guide and noise reduction device described above.

[0051] A construction machinery provided by the present invention may include a hydraulic oil tank with a sound guide and noise reduction device as described in any one of the above embodiments.

[0052] The beneficial effects achieved by the construction machinery provided by the present invention are the same as those achieved by the hydraulic oil tank with a sound guide and noise reduction device provided by the present invention, so they will not be elaborated here.

[0053] It should be noted that the above construction machinery can be a mining dump truck, a crane, an excavator, a pump truck or other types of construction machinery.

[0054] In the description provided herein, numerous specific details are set forth. However, it will be understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures and technologies have not been shown in detail so as not to obscure the understanding of this description.

[0055] In addition, those skilled in the art will understand that although some embodiments described herein include certain features contained in other embodiments but not others, the combinations of features of different embodiments are equally within the scope of protection of the present invention and form different embodiments. For example, in the above embodiments, those skilled in the art can use them in a combined manner according to the known technical solutions and the technical problems to be solved by this application.

[0056] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art of this patent, without departing from the scope of the technical solution of the present invention, may make some changes or modifications using the technical content prompted above to form equivalent embodiments of equivalent changes. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A hydraulic oil tank with a sound guide and noise reduction device, characterized in that: include: Oil tank body, used for storing hydraulic oil; At least one cooling fan installed on the top of the oil tank body; The sound-conducting and noise-reducing device is installed on the top of the oil tank body and wraps all the cooling fans. The noise generated by the cooling fans is firstly absorbed and reduced, and then the noise is guided out to the outside air.

2. The hydraulic oil tank with a sound guide and noise reduction device according to claim 1, characterized in that: The sound guide noise reduction device comprises: A sound guide component is installed on the oil tank body, and the cooling fan is located in the sound guide component to guide the noise generated by the cooling fan upward; The sound absorbing component is installed in the sound guiding component to absorb and reduce the noise generated by the cooling fan.

3. The hydraulic oil tank with a sound guide and noise reduction device according to claim 2, characterized in that: The sound guide component is a sound guide cover with a barrel-shaped structure, the height of which exceeds the height of the top of the control room, and guides the noise generated by the cooling fan to a position higher than the control room for output.

4. The hydraulic oil tank with a sound guide and noise reduction device according to claim 3, characterized in that: The top opening of the sound guide cover is oriented toward a side away from the control room, so as to guide the noise generated by the cooling fan to the side away from the control room.

5. The hydraulic oil tank with a sound guide and noise reduction device according to claim 2, characterized in that: The sound guide component is a sound guide cover with a barrel-shaped structure, and a ventilation device whose outer contour matches the inner contour is installed at the top opening of the sound guide cover.

6. The hydraulic oil tank with a sound guide and noise reduction device according to claim 5, characterized in that: The ventilation device is composed of at least one grid; The grid is mainly composed of a pair of L-shaped plates facing each other, a plurality of partitions arranged between the two L-shaped plates and spaced from top to bottom, and a plurality of support plates arranged between two adjacent partitions and welded together; The L-shaped plate is provided with a plurality of through holes, a mounting plate is fixed at the inner edge of the top opening of the sound guide cover, the mounting plate is provided with threaded holes corresponding to the through holes, and the grille is fixed to the mounting plate by screws.

7. The hydraulic oil tank with a sound guide and noise reduction device according to claim 6, characterized in that: The number of at least one grille is N, where N is an integer not less than 2, and the plurality of grilles are installed side by side at the top opening of the sound guide cover; N-1 triangular brackets are provided in the top opening of the sound guide cover to support the joint of the two grilles; The mounting plate is arranged on the triangular bracket, and the grille is fixed on the mounting plate by screws.

8. The hydraulic oil tank with a sound guide and noise reduction device according to claim 2, characterized in that: The sound guide component is a sound guide cover with a barrel-shaped structure; A plurality of U-shaped handles are welded at intervals along the circumferential direction at the middle portion of the outer peripheral surface of the sound guide cover; A circle of ribs arranged at intervals is welded to the bottom of the outer peripheral surface of the sound guide cover along the circumferential direction.

9. The hydraulic oil tank with a sound guide and noise reduction device according to claim 2, characterized in that: The sound absorbing component is a sound absorbing pad made of sound absorbing material, which is arranged at the position where the bottom of the sound guide component contacts the hydraulic oil tank and on the entire inner side of the sound guide component.

10. The hydraulic oil tank with a sound guide and noise reduction device according to claim 9, characterized in that: A plurality of threaded seats are welded on the inner side surface of the sound guide component, and the sound absorbing pad is provided with circular holes at positions corresponding to the threaded seats; the back side of the sound absorbing pad is an adhesive surface, which is adhered to the inner side surface of the sound guide component, and the pressure plate is placed on the sound absorbing pad for fixing by the cooperation of bolts and threaded seats.

11. An engineering machine, characterized in that: A hydraulic oil tank having a sound-conducting noise reduction device as claimed in any one of claims 1 to 10 is installed.

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