A vane type hydraulic pump device with a noise reducing housing

Abstract

The utility model discloses a blade formula hydraulic pump device with noise reduction shell belongs to hydraulic pump technical field, including base no.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic pump technology, and in particular to a vane hydraulic pump device with a noise-reducing housing. Background Technology

[0002] As a power component of hydraulic systems, vane hydraulic pumps are widely used in many fields of engineering machinery and industrial equipment. However, during their operation, due to the high-speed flow of internal oil, pressure pulsation, and reciprocating motion of rotor and vane mechanical parts, relatively strong noise is inevitably generated. This noise not only affects the physical and mental health of operators and forms noise pollution, but also means that there is abnormal vibration and impact inside the equipment. Over time, this will affect the stability and service life of the entire hydraulic system.

[0003] Meanwhile, hydraulic pumps experience efficiency losses during energy conversion, with most of this lost energy being converted into heat, causing the temperature of the hydraulic oil and pump body to rise. When the temperature is too high, the viscosity of the hydraulic oil decreases, its lubrication performance deteriorates, and the aging of sealing components is accelerated, ultimately leading to a decrease in the working efficiency of the hydraulic system and even causing malfunctions.

[0004] Currently, conventional methods for noise reduction and heat dissipation in hydraulic pumps are often singular or separate. For example, passive noise reduction is achieved by adding simple soundproof covers, but their sound absorption effect is limited and the problem of vibration transmission is not solved; or they rely on the pump body's own natural heat dissipation or simple air-cooled fins, but the heat dissipation efficiency is significantly insufficient when the equipment operates under high load for a long time. How to integrate efficient noise reduction functions with active heat dissipation functions to comprehensively improve the overall performance of vane hydraulic pumps is a technical problem that urgently needs to be solved in this field.

[0005] Therefore, this utility model proposes a vane-type hydraulic pump device with a noise-reducing housing to overcome the shortcomings of the prior art. Utility Model Content

[0006] In view of the problems of high noise, strong vibration and low heat dissipation efficiency in the existing vane hydraulic pump device with noise reduction housing, the present invention aims to provide a vane hydraulic pump device with noise reduction housing with improved structure that can effectively solve the above problems.

[0007] This utility model provides a vane-type hydraulic pump device with a noise-reducing housing, including: a base, a hydraulic pump outer shell, a hydraulic pump inner shell; as well as perforated aluminum foam, a shock-absorbing pad, and a heat dissipation mechanism.

[0008] The device features an integrated noise reduction and heat dissipation structure that functionally encapsulates and structurally optimizes the traditional hydraulic pump.

[0009] Specifically, the hydraulic pump housing is mounted on top of the base, while the hydraulic pump inner housing is housed within it. The space between the hydraulic pump housing and the inner housing is filled with porous, open-cell aluminum foam to absorb sound generated during operation. A shock-absorbing pad is also placed between the base and the hydraulic pump housing to isolate vibrations during operation. Furthermore, a heat dissipation mechanism is fixedly connected to the outer wall of the hydraulic pump housing. This mechanism includes a heat sink, copper heat pipes, fins, a motor, and a fan. The heat sink is attached to the outer wall of the hydraulic pump housing for efficient heat dissipation. One end of the copper heat pipe is connected to the heat sink, while the other end passes through the fins to increase the heat dissipation area. The motor drives the fan to force-cool the fins, thus forming a complete integrated structure combining sound absorption, vibration damping, and active heat dissipation.

[0010] Preferably, the heat dissipation mechanism further includes a baffle fixed to one side of the fins. The baffle's function is to gather and guide the airflow generated by the fan, so that the airflow flows through the fins in a concentrated manner, thereby improving the heat exchange efficiency.

[0011] Preferably, the hydraulic pump housing is connected to an oil inlet, and a noise reduction ring is fixedly installed inside the oil inlet to reduce noise when the hydraulic oil enters the pump body.

[0012] Preferably, the open end of the hydraulic pump housing is closed by a fixing plate, and the inner housing of the hydraulic pump is fixed to the inner side of the fixing plate by a fixing plate II, ensuring the stability of the internal components.

[0013] Preferably, based on the above structure, a rotating shaft is rotatably connected to the center of the hydraulic pump inner housing. This rotating shaft passes through the fixed plate and extends to the outside of the hydraulic pump outer housing to receive external power.

[0014] Preferably, in order to stably install the motor, the heat dissipation mechanism further includes a mounting base, which is disposed between the fins, and the motor is mounted on the mounting base.

[0015] Preferably, the heat dissipation mechanism further includes a base two and a fixing plate one, and the fins are fixed to the base two by the fixing plate one, forming a heat dissipation module with a stable structure and easy overall installation.

[0016] Preferably, in order to facilitate maintenance and repair of the equipment, an inspection door is provided on the wall of the hydraulic pump housing, and the inspection door is fixed to the hydraulic pump housing in a detachable manner by a fixing plate.

[0017] Preferably, the inner casing of the hydraulic pump is also connected to an oil outlet for outputting high-pressure hydraulic oil.

[0018] This utility model has the following beneficial effects: 1. This utility model effectively solves the problems of high noise and strong vibration of existing hydraulic pumps by setting a double-layer shell structure consisting of a hydraulic pump outer shell and a hydraulic pump inner shell, and filling the space between them with open-cell aluminum foam. At the same time, a shock-absorbing pad is set between the base and the hydraulic pump outer shell. This achieves the dual effect of sound absorption and noise reduction and shock absorption, and significantly improves the working environment of the equipment.

[0019] 2. This utility model solves the problem of poor heat dissipation and excessive temperature caused by long-term high-load operation of existing hydraulic pumps by fixing a heat dissipation mechanism consisting of a heat dissipation plate, heat dissipation copper pipe, fins, motor and fan to the outer wall of the hydraulic pump housing. It achieves the technical effect of active and efficient forced air cooling, ensures the stability of hydraulic oil performance and extends the service life of the equipment.

[0020] 3. This utility model integrates the noise reduction structure and heat dissipation structure onto the hydraulic pump body and provides an easy-to-maintain inspection door, which solves the problems of existing noise reduction and heat dissipation modification schemes being structurally dispersed, occupying a large space, and being difficult to maintain. It achieves the technical effect of compact structure, comprehensive function, and strong practicality. Attached Figure Description

[0021] Figure 1 This is a front perspective view of a vane-type hydraulic pump device with a noise-reducing housing proposed in this utility model; Figure 2 This is a partial structural exploded view of the noise reduction ring of a vane-type hydraulic pump device with a noise reduction housing proposed in this utility model; Figure 3 This is a partial structural diagram of the heat sink of a vane-type hydraulic pump device with a noise-reducing housing proposed in this utility model.

[0022] Legend: 1. Base 1; 2. Heat dissipation mechanism; 201. Heat sink plate; 202. Copper heat dissipation pipe; 203. Fins; 204. Mounting base; 205. Motor; 206. Fan; 207. Baffle; 208. Mounting plate 1; 209. Base 2; 3. Hydraulic pump housing; 4. Mounting plate; 5. Shock-absorbing pad; 6. Hydraulic pump inner housing; 7. Shaft; 8. Noise-reducing ring; 9. Mounting plate 2; 10. Inspection door; 11. Mounting plate 3; 12. Oil outlet; 13. Perforated aluminum foam; 14. Oil inlet. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0024] Example: Please refer to Figures 1 to 3 This utility model provides a vane-type hydraulic pump device with a noise-reducing housing, including a base 1, a hydraulic pump housing 3 mounted on the top of the base 1 via a shock-absorbing pad 5 located between the two, the base 1 provides a stable support foundation for the entire device, and the shock-absorbing pad 5 is used to absorb and isolate the vibration generated during the operation of the equipment, the hydraulic pump housing 3 houses the working component hydraulic pump inner housing 6 inside, the open end of the hydraulic pump housing 3 is closed by a fixing plate 4, and the hydraulic pump inner housing 6 is fixedly connected to the inside of the fixing plate 4 by a fixing plate 9; Please refer to Figure 2 This securely fixes the hydraulic pump inner housing 6 within the internal space of the hydraulic pump outer housing 3. One end of the rotating shaft 7 is rotatably connected to the hydraulic pump inner housing 6 and extends through the fixing plate 4 to the outside, serving to receive external power to drive the hydraulic pump inner housing 6 to rotate and perform work. The hydraulic pump inner housing 6 is connected to an oil inlet 14 for inputting hydraulic oil and an oil outlet 12 for outputting high-pressure oil. To facilitate maintenance of the internal structure, an inspection door 10 is also provided on the shell wall of the hydraulic pump outer housing 3. The inspection door 10 is detachably connected to the hydraulic pump outer housing 3 via a fixing plate 3 11.

[0025] As a preferred implementation, to further reduce noise at the sound source, please refer to... Figure 2 A noise reduction ring 8 is fixedly installed inside the oil inlet 14, which is connected to the inner shell 6 of the hydraulic pump. The noise reduction ring 8 performs preliminary noise reduction treatment on the flowing hydraulic oil.

[0026] Please refer to Figure 3 The internal structure of the heat dissipation mechanism 2 is defined in detail. The heat dissipation mechanism 2 also includes a fixing base 204, which is mounted between the fins 203 to provide a mounting position for the motor 205. The heat dissipation mechanism 2 also includes a baffle 207, which is fixed to one side of the fins 203. Its function is to gather and guide the airflow generated by the fan 206, so that the airflow flows through the fins 203 in a concentrated manner, thereby improving the heat exchange efficiency. To ensure the stability of the entire heat dissipation mechanism 2, it also includes a second base 209 and a first fixing plate 208. The fins 203 are fixedly connected to the second base 209 through the first fixing plate 208 to form an independent heat dissipation module.

[0027] Please refer to Figure 1 The opening in the wall of the hydraulic pump housing 3 is closed by the maintenance door 10, and the maintenance door 10 is fixed to the hydraulic pump housing 3 in a detachable manner by the fixing plate 3 11, which facilitates subsequent maintenance and repair.

[0028] Working principle: Hydraulic oil flows into the hydraulic pump inner housing 6 through the oil inlet 14. During the process, a noise reduction ring 8 installed inside the oil inlet 14 reduces noise. After flowing into the hydraulic pump inner housing 6, the hydraulic pump performs work to discharge the hydraulic oil from the oil outlet 12. The noise generated during the process is absorbed by the perforated aluminum foam 13 installed inside the hydraulic pump outer housing 3. The noise generated by machine vibration is reduced by the shock-absorbing pad 5. The base 1 supports the hydraulic pump outer housing 3. The rotating shaft 7 rotates to drive the hydraulic pump inner housing 6. The fixed plate 4 seals the hydraulic pump outer housing 3. The fixed plate 9 is connected to the fixed plate 4 to fix the hydraulic pump inner housing 6. The maintenance door 10 is used to open the machine in case of failure. The fixed plate 11 is used to cooperate with the opening of the maintenance door 10 and to fix the maintenance door 10. The outer wall of the fixed plate 4 is provided with a heat dissipation mechanism 2, which is used to cool the hydraulic pump inner housing 6. The temperature generated by the operation of the hydraulic pump inner shell 6 is transferred to the heat dissipation copper pipe 202 through the heat dissipation plate 201. The heat dissipation copper pipe 202 then transfers the heat to the fins 203. There are a large number of gaps between the fins 203 to facilitate air circulation and heat absorption. A fixing seat 204 is fixed in the middle of the fins 203 for mounting the motor 205. The rotation of the motor 205 drives the fan 206 to rotate. The rotation of the fan 206 accelerates the air flow inside the fins 203 to facilitate the rapid removal of heat. Fixing plate 1 208 is used to fix the fins 203, base 2 209 is used to support the above components, and baffle 207 is used to limit the direction of the fan 206 and concentrate the air flow direction to improve heat dissipation efficiency.

Claims

1. A vane-type hydraulic pump apparatus with a noise reducing housing, comprising: A base (1), a hydraulic pump housing (3), is installed on the top of the base (1), and a hydraulic pump inner housing (6) is housed inside the hydraulic pump housing (3); The feature is that the space between the hydraulic pump housing (3) and the hydraulic pump inner housing (6) is filled with open-cell aluminum foam (13) for absorbing noise, and a shock-absorbing pad (5) is provided between the base (1) and the hydraulic pump housing (3). A heat dissipation mechanism (2) is fixedly connected to the outer wall of the hydraulic pump housing (3). The heat dissipation mechanism (2) includes a heat dissipation plate (201), a heat dissipation copper pipe (202), fins (203), a motor (205), and a fan (206). The heat dissipation plate (201) is attached to the outer wall of the hydraulic pump housing (3). One end of the heat dissipation copper pipe (202) is connected to the heat dissipation plate (201), and the other end passes through the fins (203). The motor (205) drives the fan (206) to rotate to force-cool the fins (203).

2. The vane-type hydraulic pump apparatus with a noise reduction casing according to claim 1, characterized by The heat dissipation mechanism (2) also includes a baffle (207), which is fixed to one side of the fin (203) and is used to gather the airflow generated by the fan (206).

3. The vane-type hydraulic pump device with noise-reducing housing according to claim 1, characterized in that, The hydraulic pump housing (6) is connected to an oil inlet (14), and a noise reduction ring (8) for reducing oil inlet noise is fixedly installed inside the oil inlet (14).

4. The vane-type hydraulic pump device with noise-reducing housing according to claim 1, characterized in that, The opening end of the hydraulic pump housing (3) is closed by a fixing plate (4), and the hydraulic pump inner housing (6) is fixed to the inside of the fixing plate (4) via a fixing plate (9).

5. A vane-type hydraulic pump device with a noise-reducing housing according to claim 4, characterized in that, The hydraulic pump inner housing (6) is rotatably connected to a rotating shaft (7), which passes through the fixed plate (4) and extends to the outside of the hydraulic pump outer housing (3).

6. The vane-type hydraulic pump apparatus with a noise reduction casing according to claim 1, characterized by The heat dissipation mechanism (2) also includes a fixing seat (204), which is mounted between the fins (203), and the motor (205) is mounted on the fixing seat (204).

7. The vane-type hydraulic pump apparatus with a noise reduction casing according to claim 1, characterized by The heat dissipation mechanism (2) also includes a base two (209) and a fixing plate one (208), and the fins (203) are fixed to the base two (209) by the fixing plate one (208).

8. The vane-type hydraulic pump apparatus with a noise reducing casing according to claim 1, characterized by The hydraulic pump housing (3) is provided with an inspection door (10) on its wall. The inspection door (10) is detachably connected to the hydraulic pump housing (3) via a fixing plate (11).

9. The vane-type hydraulic pump apparatus with a noise reducing casing according to claim 1, characterized by The hydraulic pump housing (6) is also connected to an oil outlet (12) for outputting hydraulic oil.

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