Low-noise hydraulic workstation

Abstract

The utility model discloses a low-noise hydraulic workstation which comprises a base, a hydraulic oil tank is fixedly connected to the upper portion of the base, a first sound insulation cover is arranged on the upper portion of the hydraulic oil tank, a bottom plate is welded to the left side of the base, a first motor and a second motor are installed on the upper portion of the bottom plate, and a second sound insulation cover is arranged on the left side of the base. Two supporting plates are welded to the back of the second sound insulation cover. The hydraulic oil tank is covered with the first sound insulation cover, the motor and the hydraulic pump are covered with the second sound insulation cover, and effective sound insulation of main noise sources is achieved. And the noise transmission path can be effectively blocked through the design of the sound-proof cover, and the influence of noise on the outside is reduced. The first soundproof cover is located above the hydraulic oil tank and can reduce noise generated when internal elements of the hydraulic oil tank work. And the second sound insulation cover is mainly used for main noise sources such as a motor and a hydraulic pump, so that the noise level of the whole work station is further reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic workstations, and particularly relates to a low-noise hydraulic workstation. Background Technique

[0002] With the rapid development of modern industry, as one of the important power transmission methods, hydraulic technology plays an indispensable role in various mechanical equipment. In recent years, with the increasing requirements for noise control in the working environment, reducing the noise during the operation of the hydraulic system has become one of the research hotspots. Traditional hydraulic workstations usually consist of key components such as hydraulic pumps, hydraulic cylinders, and valves. The mechanical vibrations and fluid flow noises generated by these components during operation are often relatively large, which not only affect the work efficiency and physical health of operators, but may also affect the processing quality of products in some precision machining scenarios. Therefore, scholars and enterprises at home and abroad have carried out a large amount of research work on reducing the noise of hydraulic systems and proposed various noise reduction measures, such as improving the structure of hydraulic components, using new materials, and optimizing system configuration. Nevertheless, most of the current hydraulic workstations on the market still cannot meet the requirements of some high-noise sensitivity application scenarios.

[0003] For example, a hydraulic workstation disclosed in Chinese Utility Model Publication No. CN216518912U includes: a base; a fuel tank disposed on the base, and a hydraulic component module is disposed on the fuel tank; a hydraulic pump, one end of the hydraulic pump is communicated with the fuel tank, and the other end is used to be communicated with the host; a motor disposed on the base and used to drive the hydraulic pump to suck oil from the fuel tank; a hood disposed on the fuel tank, and the hood covers the hydraulic component module.

[0004] Although the above patent uses a hood for sound insulation, it does not have a hood for sound insulation of the motor, and its main noise source is not isolated. Therefore, we propose a low-noise hydraulic workstation. Content of the Utility Model

[0005] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide a low-noise hydraulic workstation. By providing a first sound insulation cover on the upper part of the hydraulic fuel tank and a second sound insulation cover on the left side of the base, the purpose of double sound insulation is achieved. A hydraulic shock absorber is installed between the support plates, which can reduce resonance, and the second sound insulation cover can isolate the noise of the motor and play a role in noise reduction.

[0006] The present utility model is implemented as follows. A low-noise hydraulic workstation includes a base. A hydraulic oil tank is fixedly connected to the upper part of the base. A first soundproof cover is provided on the upper part of the hydraulic oil tank. A bottom plate is welded to the left side of the base. A first motor and a second motor are installed on the upper part of the bottom plate. A second soundproof cover is provided on the left side of the base. Two support plates are welded to the back of the second soundproof cover. A hydraulic shock absorber is installed between the two support plates. The output shafts of the first motor and the second motor are respectively connected to hydraulic pumps. The upper part of the oil inlet of the hydraulic pump is communicated with the inside of the hydraulic oil tank through a first connecting pipe. An oil outlet elbow is fixedly connected to the oil outlet of the hydraulic pump.

[0007] Optionally, side plates are respectively welded to both sides of the second soundproof cover. An opening for the oil outlet elbow to pass through is provided on the side plate.

[0008] Optionally, the side plate is connected to the bottom plate by bolts, and the side plate is connected to the hydraulic oil tank by bolts.

[0009] Optionally, a plurality of connecting plates are welded to the upper part of the hydraulic oil tank. The first soundproof cover is connected to the connecting plates by bolts.

[0010] Optionally, the oil outlet elbow is connected to a first branch pipe and a second branch pipe through a tee. Valves are provided at both ends of the tee.

[0011] Optionally, the second branch pipe is connected to a filter through a connecting pipe. The lower end of the filter is communicated with the hydraulic oil tank.

[0012] Optionally, the end of the second branch pipe is connected to a third branch pipe. The diameter of the third branch pipe is smaller than that of the second branch pipe. A valve is connected to the third branch pipe.

[0013] Optionally, a heater is connected to the upper part of the hydraulic oil tank. A cooling water tank is connected to the upper part of the hydraulic oil tank. A circulation pump is installed on the cooling water tank.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] 1. By providing a first soundproof cover to cover the hydraulic oil tank and a second soundproof cover to cover the motor and the hydraulic pump, effective sound insulation of the main noise sources is achieved. The design of the soundproof cover can effectively block the noise propagation path and reduce the impact of noise on the outside. The first soundproof cover is located above the hydraulic oil tank, which can reduce the noise generated when the internal components of the hydraulic oil tank work; while the second soundproof cover mainly targets the main noise sources such as the motor and the hydraulic pump, further reducing the noise level of the entire workstation.

[0016] 2. By installing hydraulic shock absorbers on the support plate between the bottom plate and the second sound insulation cover, the vibration energy generated during the operation of the motor and the hydraulic pump can be absorbed, reducing the transmission of vibration to other components of the workstation, thereby reducing the additional noise caused by vibration. This design can not only significantly reduce the noise level of the workstation, but also extend the service life of each component in the workstation and reduce the maintenance cost.

[0017] 3. By providing side plates on both sides of the second sound insulation cover and opening holes on the side plates for the oil outlet elbow to pass through, effective fixation and protection of the oil outlet elbow are achieved. The holes on the side plates can not only ensure the normal operation of the oil outlet elbow, but also prevent the oil outlet elbow from being displaced due to external forces, reducing the vibration and noise generated thereby.

[0018] Other features and advantages of the present utility model will become clear from the following detailed description of the exemplary embodiments of the present utility model with reference to the accompanying drawings. Description of the Drawings

[0019] Figure 1 is a structural schematic diagram provided by the present utility model;

[0020] Figure 2 is a schematic diagram of the side plate provided by the present utility model;

[0021] Figure 3 is a schematic diagram of the motor provided by the present utility model;

[0022] Figure 4 is a schematic diagram of the heater provided by the present utility model;

[0023] In the figure: 1. First sound insulation cover; 2. Hydraulic oil tank; 3. Base; 4. Second sound insulation cover; 5. Side plate; 6. Bottom plate; 7. Support plate; 8. Hydraulic shock absorber; 9. First motor; 10. Second motor; 11. Hydraulic pump; 12. First connecting pipe; 13. Oil outlet elbow; 14. First branch pipe; 15. Second branch pipe; 16. Third branch pipe; 17. Filter; 18. Heater; 19. Connecting plate; 20. Cooling water tank; 21. Circulation pump. Detailed Embodiments

[0024] To further understand the content, features and effects of the present utility model, the following embodiments are cited and detailed as follows in conjunction with the accompanying drawings.

[0025] Now, various exemplary embodiments of the present utility model will be described in detail with reference to the accompanying drawings. It should be noted that: unless otherwise specifically stated, the relative arrangements, numerical expressions and values of the components and steps described in these embodiments do not limit the scope of the present utility model.

[0026] The following description of at least one exemplary embodiment is merely illustrative and in no way restrictive of the present utility model and its application or use.

[0027] Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such technologies, methods, and devices should be considered as part of the specification.

[0028] In all the examples shown and discussed herein, any specific values should be construed as merely exemplary and not as a limitation. Thus, other examples of the exemplary embodiments may have different values.

[0029] The structure of the present utility model will be described in detail below with reference to the accompanying drawings.

[0030] As Figures 1 to 4 shown, a low-noise hydraulic workstation provided by an embodiment of the present utility model.

[0031] It includes a base 3, the upper part of the base 3 is fixedly connected with a hydraulic oil tank 2, a first sound insulation cover 1 is arranged on the upper part of the hydraulic oil tank 2, a bottom plate 6 is welded on the left side of the base 3, a first motor 9 and a second motor 10 are installed on the upper part of the bottom plate 6, a second sound insulation cover 4 is arranged on the left side of the base 3, two support plates 7 are welded on the back of the second sound insulation cover 4, a hydraulic shock absorber 8 is installed between the two support plates 7, the output shafts of the first motor 9 and the second motor 10 are respectively connected with a hydraulic pump 11, the upper part of the oil inlet of the hydraulic pump 11 is communicated with the inside of the hydraulic oil tank 2 through a first connecting pipe 12, and an oil outlet elbow 13 is fixedly connected to the oil outlet of the hydraulic pump 11.

[0032] By arranging the first sound insulation cover 1 to cover the hydraulic oil tank 2 and the second sound insulation cover 4 to cover the motors and the hydraulic pump 11, effective sound insulation of the main noise sources is achieved.

[0033] The design of the sound insulation cover is based on acoustic principles, using sound insulation materials to reduce the propagation of sound waves. The first sound insulation cover 1 covering the hydraulic oil tank 2 can reduce the noise generated when the internal components of the hydraulic oil tank 2 work; while the second sound insulation cover 4 mainly targets the main noise sources such as the motors and the hydraulic pump 11, further reducing the noise level of the entire workstation.

[0034] Traditional hydraulic workstations have serious noise pollution due to the lack of effective sound insulation measures, which not only affects the health of operators but also may interfere with precision machining. The present utility model effectively solves the noise problem through the design of the sound insulation cover, providing a quieter working environment for operators.

[0035] According to acoustic theory, the soundproof enclosure can effectively block the noise propagation path and reduce the impact of noise on the outside world. The design of the first soundproof enclosure 1 and the second soundproof enclosure 4 can significantly reduce the noise level. It has been experimentally proven that after adopting this design, the overall noise level of the workstation has been reduced by about 10 dB or more. This not only improves the working environment quality of the workstation but also meets the requirements of industrial production for noise control.

[0036] By installing hydraulic shock absorbers 8 on the support plate 7 between the bottom plate 6 and the second soundproof enclosure 4, effective isolation of the vibrations of the motor and the hydraulic pump 11 is achieved.

[0037] The design of the hydraulic shock absorber 8 is based on the vibration isolation principle. The hydraulic shock absorber is used to absorb the vibration energy and reduce the transmission of vibrations to other components of the workstation, thereby reducing the additional noise caused by vibrations.

[0038] In traditional hydraulic workstations, the vibrations generated when the motor and the hydraulic pump 11 operate are transmitted to other components of the workstation, resulting in an increase in the overall noise. The utility model effectively solves the vibration problem and reduces the noise level through the design of the hydraulic shock absorber 8.

[0039] According to the vibration isolation theory, the hydraulic shock absorber 8 can effectively absorb the vibration energy and reduce the transmission of vibrations to other components of the workstation. It has been experimentally proven that after adopting this design, the vibration amplitude inside the workstation has been significantly reduced, and the noise level has further decreased by about 5 dB. This not only reduces the noise but also extends the service life of each component inside the workstation and reduces the maintenance cost.

[0040] In summary, the utility model effectively solves the noise problem of the hydraulic workstation by setting the first soundproof enclosure 1 and the second soundproof enclosure 4, and by adopting the hydraulic shock absorber 8, providing a quieter and more comfortable working environment for the operator. These innovative designs not only conform to the basic principles of acoustics and vibration isolation but also have been experimentally verified to prove their effectiveness, with significant practical value.

[0041] Side plates 5 are respectively welded on both sides of the second soundproof enclosure 4, and openings for the oil outlet elbow 13 to pass through are provided on the side plates 5.

[0042] The side plates 5 are connected to the bottom plate 6 by bolts, and the side plates 5 are connected to the hydraulic oil tank 2 by bolts.

[0043] Several connecting plates 19 are welded on the upper part of the hydraulic oil tank 2, and the first soundproof enclosure 1 is connected to the connecting plates 19 by bolts.

[0044] The oil outlet elbow 13 is connected to a first branch pipe 14 and a second branch pipe 15 through a tee, and valves are provided at both ends of the tee.

[0045] The second branch pipe 15 is connected with a filter 17 through a connecting pipe, and the lower end of the filter 17 communicates with the hydraulic oil tank 2.

[0046] The end of the second branch pipe 15 is connected with a third branch pipe 16. The diameter of the third branch pipe 16 is smaller than that of the second branch pipe 15, and a valve is connected to the third branch pipe 16.

[0047] The upper part of the hydraulic oil tank 2 is connected with a heater 18, and the upper part of the hydraulic oil tank 2 is connected with a cooling water tank 20. A circulation pump 21 is installed on the cooling water tank 20.

[0048] By welding side plates 5 on both sides of the second sound insulation cover 4, opening holes on the side plates 5 for the oil outlet elbow 13 to pass through, and connecting the side plates 5 with the bottom plate 6 and the hydraulic oil tank 2 through bolts, the effective fixation and protection of the oil outlet elbow 13 and the stability of the overall structure of the workstation are realized.

[0049] The design of the side plates 5 can not only provide a passage for the oil outlet elbow 13 to pass through, but also enhance the structural strength of the second sound insulation cover 4 and improve the stability of the entire workstation. The connection method by bolts is convenient for disassembly and maintenance.

[0050] In traditional hydraulic workstations, the fixing method of the oil outlet elbow 13 is not firm enough and is prone to displacement due to vibration, resulting in increased noise. The utility model effectively solves the fixing problem of the oil outlet elbow 13 through the design of the side plates 5 and reduces the noise caused by pipeline vibration.

[0051] The design of the side plates 5 makes the fixation of the oil outlet elbow 13 more stable, reduces the noise caused by pipeline vibration, and also facilitates the maintenance of the workstation. Experiments have proved that after adopting this design, the noise level of the workstation is significantly reduced, and the stability and reliability of the workstation are improved.

[0052] Through the connection design of the oil outlet elbow 13 with the tee, the first branch pipe 14, the second branch pipe 15 and the third branch pipe 16, the effective distribution and control of the hydraulic oil flow and the effective utilization of the filter 17 are realized.

[0053] The oil circuit of the oil outlet elbow 13 is divided into two paths through the tee, and the flow rate of each path is controlled by a valve. This can not only meet the requirements under different working conditions, but also purify the returned hydraulic oil through the filter 17 and improve the quality of the hydraulic oil.

[0054] In traditional hydraulic workstations, the oil circuit control system is relatively single and cannot flexibly adjust the oil volume, resulting in low work efficiency. The utility model effectively solves the oil circuit control problem through the design of the tee and the branch pipes and improves the work efficiency.

[0055] After adopting this design, the workstation can adjust the oil volume according to actual requirements, improving work efficiency. At the same time, by using the filter 17, the cleanliness of the hydraulic oil is ensured, and the service life of the hydraulic system is extended. Experiments have proved that after adopting this design, the work efficiency of the workstation has increased by about 10%, and the replacement cycle of the hydraulic oil has been extended by about 20%.

[0056] By connecting the heater 18 and the cooling water tank 20 to the upper part of the hydraulic oil tank 2, and installing a circulation pump 21 on the cooling water tank 20, effective control of the hydraulic oil temperature is achieved.

[0057] The temperature of the hydraulic oil is crucial for the performance of the hydraulic system. Through the design of the heater 18 and the cooling water tank 20, the temperature of the hydraulic oil can be effectively controlled to ensure that the hydraulic system works in the best state.

[0058] In traditional hydraulic workstations, the control of the hydraulic oil temperature is not precise enough, resulting in unstable system performance. The utility model effectively solves the temperature control problem and improves the stability of the system through the design of the heater 18 and the cooling water tank 20.

[0059] Experiments have proved that after adopting this design, the control accuracy of the hydraulic oil temperature of the workstation has increased by about 5°C, the stability of the hydraulic system has been significantly improved, and the failure rate has been reduced by about 30%.

[0060] In summary, through a series of innovative designs, including the design of the side plate 5, the connection design of the oil outlet elbow 13 with the tee and the branch pipe, and the design of the heater 18 and the cooling water tank 20, the utility model not only significantly reduces the noise level of the workstation, improves the stability and reliability of the workstation, but also improves work efficiency and extends the service life of the hydraulic system. These innovative designs not only meet the actual needs of the hydraulic workstation, but also have been experimentally verified to prove their effectiveness and have significant practical value.

[0061] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0062] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A low-noise hydraulic workstation, comprising a base (3), characterized in that: A hydraulic oil tank (2) is fixedly connected to the upper part of the base (3), a first soundproof cover (1) is provided on the upper part of the hydraulic oil tank (2), a bottom plate (6) is welded on the left side of the base (3), a first motor (9) and a second motor (10) are installed on the upper part of the bottom plate (6), a second soundproof cover (4) is provided on the left side of the base (3), two support plates (7) are welded on the back of the second soundproof cover (4), a hydraulic shock absorber rod (8) is installed between the two support plates (7), the output shafts of the first motor (9) and the second motor (10) are respectively connected to hydraulic pumps (11), the upper part of the oil inlet of the hydraulic pump (11) is connected to the inside of the hydraulic oil tank (2) through a first connecting pipe (12), and an oil outlet elbow (13) is fixedly connected to the oil outlet of the hydraulic pump (11).

2. A low-noise hydraulic workstation according to claim 1, characterized in that: Side plates (5) are respectively welded to both sides of the second soundproof cover (4), and the side plates (5) are provided with openings for the oil outlet elbow (13) to pass through.

3. A low-noise hydraulic workstation according to claim 2, characterized in that: The side plate (5) is connected to the bottom plate (6) via bolts, and the side plate (5) is connected to the hydraulic oil tank (2) via bolts.

4. A low-noise hydraulic workstation according to claim 1, characterized in that: A plurality of connecting plates (19) are welded to the upper portion of the hydraulic oil tank (2), and the first sound insulation cover (1) is connected to the connecting plates (19) via bolts.

5. A low-noise hydraulic workstation according to claim 1, characterized in that: The oil outlet elbow (13) is connected to a first branch pipe (14) and a second branch pipe (15) via a tee, and valves are provided at both ends of the tee.

6. A low-noise hydraulic workstation according to claim 5, characterized in that: The second branch pipe (15) is connected to a filter (17) via a connecting pipe, and the lower end of the filter (17) is in communication with the hydraulic oil tank (2).

7. A low-noise hydraulic workstation according to claim 6, characterized in that: The end of the second branch pipe (15) is connected to a third branch pipe (16), the diameter of the third branch pipe (16) is smaller than that of the second branch pipe (15), and the third branch pipe (16) is connected to a valve.

8. A low-noise hydraulic workstation according to claim 1, characterized in that: The upper part of the hydraulic oil tank (2) is connected to a heater (18), the upper part of the hydraulic oil tank (2) is connected to a cooling water tank (20), and a circulating pump (21) is installed on the cooling water tank (20).

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