Hydraulic oil source device for laboratory

Abstract

The utility model discloses a hydraulic oil source device for a laboratory, which belongs to the technical field of hydraulic oil source devices and comprises a base, an oil tank and a shield, the oil tank is supported on the base through a first damping cushion block, an oil-immersed motor is hoisted in the oil tank through a mounting frame, and the oil-immersed motor is connected with a plunger pump; the mounting frame comprises a hanging frame, a supporting plate, a hanging frame and a second damping cushion block; and a pressure regulating valve group and an oil return pipe are arranged on the oil tank. The oil immersed motor drives the plunger pump, hydraulic power is provided through the pressure regulating valve set, and oil is returned through the oil return pipe. The oil-immersed motor and the plunger pump are immersed in hydraulic oil, so that the working noise is reduced; the second damping cushion block is used for damping between the oil-immersed motor and the hanging bracket and reducing noise transmission to the oil tank; the first shock-absorbing cushion block realizes shock absorption of the oil tank and reduces noise; the shield isolates noise. Multiple noise reduction means prevent noise from being scattered and transmitted, the noise intensity in a laboratory is reduced, and the laboratory environment is improved. The overall structure is simple, implementation is easy, and practicability is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic oil source devices, in particular to a hydraulic oil source device for laboratories. Background Art

[0002] Hydraulic oil source equipment is widely used in various industries to drive hydraulic actuators to achieve corresponding functions. Among them, the laboratory hydraulic oil source device is a device that provides hydraulic power in hydraulic experiments.

[0003] The installation environment of laboratory hydraulic oil source equipment requires low noise and high oil cleanliness. In reality, laboratory oil source equipment will generate a lot of noise due to its own working characteristics, and the use of soundproof covers alone cannot effectively isolate the noise. Being in a noisy environment (laboratory) for a long time will cause great harm to the experimenters. Utility Model Content

[0004] In order to solve the problem that traditional laboratory hydraulic oil source equipment generates relatively large noise, a soundproof cover alone cannot effectively isolate the noise, and long-term exposure to the noise environment will cause great harm to the experimenters, the utility model provides a laboratory hydraulic oil source device.

[0005] The utility model is realized by the following technical solutions:

[0006] A hydraulic oil source device for laboratory use comprises a base, an oil tank filled with hydraulic oil and a protective cover that can be installed on the oil tank, the oil tank is supported and installed on the upper side of the base by a first shock-absorbing pad, a plurality of oil-immersed motors are suspended inside the oil tank by a mounting frame, and a plunger pump is connected and installed on the output shaft end of the oil-immersed motor; the mounting frame comprises a hanger connected and installed with the top of the oil tank, and a support plate is connected and installed at the lower part of the hanger; a hanger with two openings of a channel steel structure arranged opposite to each other is connected and installed on the upper part of the oil-immersed motor; a second shock-absorbing pad is padded between the upper wing plate of the hanger and the support plate, and is installed by bolt connection; a pressure regulating valve group connected to the outlet of the plunger pump is positioned and installed on the upper side of the oil tank; and an oil return pipe is also installed in the oil tank.

[0007] A further improvement of the utility model is that an oil return filter is installed at the inlet end of the oil return pipe.

[0008] A further improvement of the utility model is that a water cooler is installed on the base, and a channel of the water cooler is connected to the inlet side of the oil return pipe.

[0009] A further improvement of the utility model is that the oil return pipe is horizontally arranged at the bottom of the oil tank, and is provided with a plurality of oil return holes corresponding to the oil-immersed motor.

[0010] A further improvement of the utility model is that an integrated valve group is installed on the base; the integrated valve group includes an accumulator and an oil outlet filter connected to the pressure regulating valve group; one end of the accumulator is connected to the outlet end of the oil outlet filter, and the other end of the accumulator is connected to the inside of the oil tank through a safety valve.

[0011] A further improvement of the utility model is that a pressure difference transmitter is provided on the oil outlet filter.

[0012] A further improvement of the utility model is that the pressure regulating valve group includes a relief valve and an electromagnetic ball valve installed in parallel.

[0013] A further improvement of the utility model is that the first shock-absorbing pad and the second shock-absorbing pad are made of polyurethane.

[0014] A further improvement of the utility model is that the shield is formed by aluminum alloy sheet metal, and a plurality of reinforcing ribs are formed on the horizontal and vertical sheet metals.

[0015] A further improvement of the utility model is that the inner wall of the shield is covered with sound-absorbing cotton and sound-insulating felt.

[0016] It can be seen from the above technical solutions that the beneficial effects of the utility model are:

[0017] The plunger pump is driven by the oil-immersed motor to absorb the hydraulic oil in the oil tank, and the hydraulic power is provided to the external equipment through the pressure regulating valve group, and the oil return circulation is realized with the return pipe as the return end. The oil-immersed motor and the plunger pump are immersed in the hydraulic oil inside the oil tank, which can effectively reduce the working noise, and the heat generated by the corresponding oil-immersed motor and the plunger pump is taken away by the hydraulic oil; a second shock-absorbing pad is provided between the upper wing plate and the support plate of the hanger, and the second shock-absorbing pad is used for shock absorption between the oil-immersed motor and the hanger, which effectively improves the service life of the oil-immersed motor and the plunger pump, and can reduce the noise transmission to the oil tank, and effectively reduces the working noise; furthermore, the oil tank is supported and installed on the upper side of the base through the first shock-absorbing pad, which effectively realizes the shock absorption of the oil tank, ensures the stability of the oil tank, and can effectively reduce the noise; and the entire device is covered by a shield, and the internal noise is isolated by the shield. Through multiple noise reduction measures, the external transmission of the noise of the hydraulic oil source equipment used in the laboratory is avoided, the noise intensity in the laboratory is effectively reduced, and the laboratory environment is improved. The overall structure is simple, easy to implement and has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of a specific implementation method of the utility model.

[0020] Figure 2 It is a schematic diagram of the installation of the protective cover according to a specific implementation mode of the utility model.

[0021] Figure 3 It is a schematic diagram of the internal structure of the fuel tank according to a specific implementation mode of the utility model.

[0022] Figure 4 This is a schematic diagram of the installation of an oil-immersed motor and a plunger pump according to a specific implementation manner of the utility model.

[0023] Figure 5 It is a schematic diagram of the principle of an integrated valve group according to a specific implementation mode of the utility model.

[0024] In the attached drawings: 1. base, 2. protective cover, 3. oil tank, 31. hanger, 32. support plate, 33. bracket, 4. water cooler, 5. integrated valve group, 51. safety valve, 52. accumulator, 53. oil outlet filter, 6. pressure regulating valve group, 61. overflow valve, 62. solenoid ball valve, 7. return oil filter, 8. return oil pipe, 81. return oil hole, 9. oil-immersed motor, 10. plunger pump, 11. first shock-absorbing pad, 12. second shock-absorbing pad. DETAILED DESCRIPTION

[0025] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0026] like Figure 1-4 As shown, an optional embodiment of the utility model discloses a hydraulic oil source device for laboratory use, comprising a base 1, an oil tank 3 filled with hydraulic oil and a protective cover 2 that can cover the oil tank 3, the oil tank 3 is supported and installed on the upper side of the base 1 by a first shock-absorbing pad 11, a plurality of oil-immersed motors 9 are suspended inside the oil tank 3 through a mounting frame, and a plunger pump 10 is connected and installed at the output shaft end of the oil-immersed motor 9; the mounting frame comprises a hanger 31 connected and installed with the top of the oil tank 3, and a support plate 32 is connected and installed at the lower part of the hanger 31; a hanger 33 with two openings of a channel steel structure arranged opposite to each other is connected and installed on the upper part of the oil-immersed motor 9; a second shock-absorbing pad 12 is padded between the upper wing plate of the hanger 33 and the support plate 32, and is installed by bolt connection; a pressure regulating valve group 6 connected to the outlet of the plunger pump 10 is positioned and installed on the upper side of the oil tank 3; and an oil return pipe 8 is also installed in the oil tank 3.

[0027] The plunger pump 10 is driven by the oil-immersed motor 9 to absorb the hydraulic oil in the oil tank 3, and the hydraulic power is provided to the external equipment through the pressure regulating valve group 6, and the oil return pipe 8 is used as the oil return end to realize the oil return circulation of the oil. The oil-immersed motor 9 and the plunger pump 10 are immersed in the hydraulic oil inside the oil tank 3, which can effectively reduce the working noise, and take away the heat generated by the corresponding oil-immersed motor 9 and the plunger pump 10 through the hydraulic oil; a second shock-absorbing pad 12 is provided between the upper wing plate of the hanger 33 and the support plate 32, and the second shock-absorbing pad 12 is used for shock absorption between the oil-immersed motor 9 and the hanger 31, effectively improving the service life of the oil-immersed motor 9 and the plunger pump 10, and can reduce the noise transmission to the oil tank 3, and effectively reduce the working noise; furthermore, the oil tank 3 is supported and installed on the upper side of the base 1 by the first shock-absorbing pad 11, which effectively realizes the shock absorption of the oil tank 3, ensures the stability of the oil tank 3, and can effectively reduce the noise; and the entire device is covered by the shield 2, and the internal noise is isolated by the shield 2. Through multiple noise reduction methods, the noise of the hydraulic oil source equipment in the laboratory is avoided from being transmitted externally, which effectively reduces the noise intensity in the laboratory and improves the laboratory environment. The overall structure is simple, easy to implement and practical.

[0028] Among them, Figure 1 , 3 As shown, a return oil filter 7 is installed at the inlet end of the return oil pipe 8. The return oil is filtered by the return oil filter 7 to ensure that the hydraulic oil is clean.

[0029] Among them, a water cooler 4 is also installed on the base 1, and a channel of the water cooler 4 is connected to the inlet side of the return oil pipe 8, that is, the water cooler 4 is connected to the cooling water circulation on one side and the return oil pipeline on the other side. The return oil is well cooled by the water cooler 4 to avoid excessively high oil temperature.

[0030] Furthermore, the oil return pipe 8 is horizontally arranged at the bottom of the oil tank 3, and is provided with a plurality of oil return holes 81 corresponding to the oil immersed motors 9. The cooled oil return liquid is evenly distributed to the plurality of oil immersed motors 9 through the oil return holes 81 on the oil return pipe 8, thereby ensuring the uniformity of oil cooling in the oil tank 3, avoiding overheating of individual oil immersed motors 9, and ensuring uniform cooling of the oil immersed motors 9.

[0031] Another optional embodiment of the utility model discloses a hydraulic oil source device for laboratory use, including a base 1, an oil tank 3 filled with hydraulic oil, and a protective cover 2 that can cover the oil tank 3. The oil tank 3 is supported and installed on the upper side of the base 1 by a first shock-absorbing pad 11. A plurality of oil-immersed motors 9 are suspended inside the oil tank 3 through a mounting frame, and a plunger pump 10 is connected and installed on the output shaft end of the oil-immersed motor 9; the mounting frame includes a hanger 31 connected and installed to the top of the oil tank 3, and a support plate 32 is connected and installed at the lower part of the hanger 31; a hanger 33 of a channel steel structure with two openings arranged opposite to each other is connected and installed on the upper part of the oil-immersed motor 9; a second shock-absorbing pad 12 is provided between the upper wing plate of the hanger 33 and the support plate 32, and is installed by bolt connection; a pressure regulating valve group 6 connected to the outlet of the plunger pump 10 is positioned and installed on the upper side of the oil tank 3; and an oil return pipe 8 is also installed in the oil tank 3. Figure 1 , 5 An integrated valve group 5 is also installed on the base 1; the integrated valve group 5 includes an accumulator 52 and two parallel oil outlet filters 53 connected to the pressure regulating valve group 6; one end of the accumulator 52 is connected to the outlet end of the oil outlet filter 53, and the other end of the accumulator 52 is connected to the inside of the oil tank 3 through a safety valve 51. The accumulator 52 has a shock-absorbing effect on the entire oil source system, eliminating the vibration and noise problems of the system. At the same time, it can provide a certain amount of backup energy for the system, and also provide a corresponding safety valve 51 for control to achieve pressure unloading and avoid excessive oil pressure in the system. A pressure differential transmitter is provided on the oil outlet filter 53 to filter the hydraulic oil of the entire oil source system. If the oil outlet filter 53 is blocked, the pressure differential transmitter will generate an alarm model to prompt the corresponding personnel to replace the filter element, thereby ensuring the cleanliness of the filter element and ensuring that the oil source system will not generate a certain amount of noise due to impurities in the oil.

[0032] Among them, Figure 4 As shown, the pressure regulating valve group 6 includes a relief valve 61 and an electromagnetic ball valve 62 installed in parallel. The pressure control port of the plunger pump 10 is remotely connected to the upper surface of the oil tank 3 by a hose, and remote pressure regulation can be achieved through the relief valve 61, and the pressure-free starting of the plunger pump 10 can be achieved through the electromagnetic ball valve 62, so as to prevent the problem of high pressure and relatively large instantaneous current when the oil-immersed motor 9 is started.

[0033] The first shock-absorbing pad 11 and the second shock-absorbing pad 12 are made of polyurethane, which effectively ensures structural strength and shock-absorbing effect.

[0034] The shield 2 is formed of aluminum alloy sheet metal, and a plurality of reinforcing ribs are formed on the horizontal and vertical sheet metal to enhance its own structural strength, avoid welding reinforcing ribs, save materials, and reduce welding amount and welding deformation.

[0035] The inner wall of the shield 2 is covered with sound-absorbing cotton and sound-insulating felt, which effectively reduces noise transmission and has a sound-absorbing effect.

[0036] This laboratory uses a hydraulic oil source device, which drives a plunger pump 10 to absorb the hydraulic oil in the oil tank 3 through an oil-immersed motor 9, provides hydraulic power to external equipment through a pressure regulating valve group 6, and uses an oil return pipe 8 as the oil return end to realize the oil return circulation of the oil. The oil-immersed motor 9 and the plunger pump 10 are immersed in the hydraulic oil inside the oil tank 3, which can effectively reduce the working noise and take away the heat generated by the corresponding oil-immersed motor 9 and the plunger pump 10 through the hydraulic oil; a second shock-absorbing pad 12 is provided between the upper wing plate of the hanger 33 and the support plate 32. The second shock-absorbing pad 12 is used for shock absorption between the oil-immersed motor 9 and the hanger 31, which effectively improves the service life of the oil-immersed motor 9 and the plunger pump 10, and can reduce the noise transmission to the oil tank 3, and effectively reduce the working noise; furthermore, the oil tank 3 is supported and installed on the upper side of the base 1 by the first shock-absorbing pad 11, which effectively realizes the shock absorption of the oil tank 3, ensures the stability of the oil tank 3, and can effectively reduce the noise; and the entire device is covered by the shield 2, and the internal noise is isolated by the shield 2. Through multiple noise reduction means, the external transmission of the noise of the hydraulic oil source equipment used in the laboratory is avoided, the noise intensity in the laboratory is effectively reduced, and the laboratory environment is improved. The overall structure is simple, easy to implement, and practical.

[0037] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0038] The terms "upper", "lower", "outer side", "inner side", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish the relative relationship in position if they exist, and do not need to be qualitative. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0039] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A hydraulic oil source device for laboratory use, characterized in that: The invention comprises a base (1), an oil tank (3) filled with hydraulic oil, and a protective cover (2) capable of covering the oil tank (3); the oil tank (3) is supported and installed on the upper side of the base (1) by a first shock-absorbing pad (11); a plurality of oil-immersed motors (9) are suspended inside the oil tank (3) by a mounting frame, and a plunger pump (10) is connected and installed at the output shaft end of the oil-immersed motor (9); the mounting frame comprises a hanger (31) connected and installed with the top of the oil tank (3); a support plate (32) is connected and installed at the lower part of the hanger (31); a hanger (33) having two openings of a channel steel structure arranged opposite to each other is connected and installed at the upper part of the oil-immersed motor (9); a second shock-absorbing pad (12) is provided between the upper wing plate of the hanger (33) and the support plate (32), and is connected and installed by bolts; a pressure regulating valve group (6) connected to the outlet of the plunger pump (10) is positioned and installed on the upper side of the oil tank (3); and an oil return pipe (8) is also installed in the oil tank (3).

2. The laboratory hydraulic oil source device according to claim 1, characterized in that: An oil return filter (7) is installed at the inlet end of the oil return pipe (8).

3. The laboratory hydraulic oil source device according to claim 1, characterized in that: A water cooler (4) is also installed on the base (1), and a channel of the water cooler (4) is connected to the inlet side of the oil return pipe (8).

4. The laboratory hydraulic oil source device according to claim 3, characterized in that: The oil return pipe (8) is horizontally arranged at the bottom of the oil tank (3), and is provided with a plurality of oil return holes (81) corresponding to the oil-immersed motor (9).

5. The laboratory hydraulic oil source device according to claim 1, characterized in that: An integrated valve group (5) is also mounted on the base (1); the integrated valve group (5) comprises an accumulator (52) and an oil outlet filter (53) connected to the pressure regulating valve group (6); one end of the accumulator (52) is connected to the outlet end of the oil outlet filter (53), and the other end of the accumulator (52) is connected to the inside of the oil tank (3) via a safety valve (51).

6. The laboratory hydraulic oil source device according to claim 1, characterized in that: A pressure differential transmitter is provided on the oil outlet filter (53).

7. The laboratory hydraulic oil source device according to claim 1, characterized in that: The pressure regulating valve group (6) comprises a relief valve (61) and an electromagnetic ball valve (62) which are installed in parallel.

8. The laboratory hydraulic oil source device according to claim 1, characterized in that: The first shock-absorbing pad (11) and the second shock-absorbing pad (12) are made of polyurethane.

9. The laboratory hydraulic oil source device according to claim 1, characterized in that: The shield (2) is formed of aluminum alloy sheet metal, and has a plurality of reinforcing ribs formed thereon in the horizontal and vertical directions.

10. The laboratory hydraulic oil source device according to claim 1, characterized in that: The inner wall of the protective cover (2) is covered with sound-absorbing cotton and sound-insulating felt.

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