Large-flow soft-start hydraulic oil separator

Abstract

The utility model relates to the field of hydraulic control, and discloses a large-flow soft-start hydraulic oil distributor which comprises a protective cover, the protective cover comprises a protective cover base, an oil distribution module is installed at the position, close to the front end, of the top end of the protective cover base, and an oil distributor body is installed at the position, close to the rear end, of the top end of the protective cover base. The oil distributor body comprises a body valve block, the bottom end of the body valve block is installed at the position, close to the rear end, of the top end of the protective cover base, the oil distribution module comprises a branch valve block, the bottom end of the branch valve block is installed at the position, close to the front end, of the top end of the protective cover base, and the front end of the body valve block is connected with the rear end of the branch valve block. According to the hydraulic lifting and clamping device, the large-capacity energy accumulator set and the high-precision filter are arranged, the requirements of a large-flow servo valve and a hydraulic lifting and clamping system can be met, and the hydraulic lifting and clamping device has the functions of remote start / stop, high / low pressure switching, low pressure adjustability, soft start from low pressure to high pressure, impact resistance, collision prevention and the like.

Description

Technical Field

[0001] The utility model relates to the field of hydraulic control, in particular to a large-flow soft-start hydraulic oil distributor. Background Technique

[0002] A shock absorber is a common device that can be used to reduce the vibration generated when a device moves. After the shock absorber is manufactured, it is usually necessary to test its shock absorption ability. At this time, hydraulic equipment needs to be used. After connecting both ends of the shock absorber to the hydraulic equipment through a connecting piece, the pressure can be output by the hydraulic equipment for testing.

[0003] At present, the hydraulic oil distributors of most hydraulic equipment have limited functions and only simply distribute oil. In the case of large-flow working conditions, the impact during the pressure increase and decrease process is relatively large, which has a certain impact on the stability of the hydraulic system and the service life of each component. In addition, its anti-impact performance and oil replenishment ability under high-pressure conditions are insufficient and are not suitable for the shock absorber endurance test system. Therefore, a large-flow soft-start hydraulic oil distributor is proposed to solve the above problems. Content of the Utility Model

[0004] In order to make up for the above deficiencies, the utility model provides a large-flow soft-start hydraulic oil distributor, aiming to improve the problem that "the existing hydraulic oil distributor of hydraulic equipment has limited functions and is not suitable for shock absorber endurance testing" in the existing technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: A large-flow soft-start hydraulic oil distributor includes a protective cover. The protective cover includes a protective cover base. A oil distribution module is installed at a position near the front end of the top of the protective cover base. A oil distributor main body is installed at a position near the rear end of the top of the protective cover base. The oil distributor main body includes a main valve block. The bottom end of the main valve block is installed at a position near the rear end of the top of the protective cover base. The oil distribution module includes a sub-valve block. The bottom end of the sub-valve block is installed at a position near the front end of the top of the protective cover base. The front end of the main valve block is connected to the rear end of the sub-valve block. A check valve is installed at the front end of the sub-valve block. The oil distributor main body further includes a soft-start accumulator. The soft-start accumulator is installed at a position near the right end of the top of the main valve block. A low-pressure accumulator is installed at the top of the main valve block near the right end of the soft-start accumulator.

[0006] As a further description of the above technical solution:

[0007] A high-precision filter is installed at a position near the rear end of the top of the main valve block. Multiple pressure reducing valves are installed at the top of the main valve block near the front end of the high-precision filter.

[0008] As a further description of the above technical solution:

[0009] A plurality of electromagnetic valves are arranged at the top end of the main valve block near the front end of the pressure reducing valve.

[0010] As a further description of the above technical solution:

[0011] A throttle valve is installed at the top end of the main valve block near the right end of the electromagnetic valve.

[0012] As a further description of the above technical solution:

[0013] The oil distribution module further includes a high-pressure accumulator, which is installed at the top end of the sub-valve block near the rear end, and a pressure gauge is installed at the connection between the one-way valve and the sub-valve block.

[0014] As a further description of the above technical solution:

[0015] The outer wall of the protective cover base is fixedly connected with a protective cover shell.

[0016] As a further description of the above technical solution:

[0017] Universal rotary lifting rings are respectively installed at the left and right ends of the outer wall of the protective cover shell.

[0018] The utility model has the following beneficial effects:

[0019] 1. In the utility model, by configuring a large-capacity accumulator group and a high-precision filter, the needs of a large-flow servo valve and a hydraulic lifting and clamping system can be met. Moreover, the device has functions such as remote start / stop, high / low pressure switching, low pressure adjustable, soft start from low pressure to high pressure, shock resistance, and anti-collision, effectively improving the stability of the hydraulic system and the service life of each component. And it has good shock resistance performance and the ability to supplement oil under high-pressure conditions, and is suitable for the shock absorber endurance test system. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a three-dimensional structural schematic diagram of the overall device in the utility model;

[0021] Figure 2 is a side sectional schematic diagram of the overall device in the utility model;

[0022] Figure 3 is a top sectional schematic diagram of the overall device in the utility model;

[0023] Figure 4 is a top schematic diagram of the oil distributor main body in the utility model;

[0024] Figure 5 is a top sectional schematic diagram of the protective cover in the utility model.

[0025] Legend:

[0026] 1. Oil separator main body; 11. Main body valve block; 12. High-precision filter; 13. Soft start accumulator; 14. Solenoid valve; 15. Throttle valve; 16. Pressure reducing valve; 17. Low-pressure accumulator; 2. Oil distribution module; 21. Distribution valve block; 22. High-pressure accumulator; 23. Check valve; 24. Pressure gauge; 3. Protective cover; 31. Protective cover base; 32. Protective cover housing; 33. Universal rotating lifting ring. Detailed implementation

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Refer to Figure 1 - Figure 3 As shown in the figure, an embodiment provided by the present invention: A large-flow soft start hydraulic oil separator includes a protective cover 3 for protecting the overall device. The protective cover 3 includes a protective cover base 31 for supporting the overall device. Near the front end of the top of the protective cover base 31, an oil distribution module 2 for controlling the oil supply and return of the oil circuit is installed. Near the rear end of the top of the protective cover base 31, an oil separator main body 1 for controlling the flow of hydraulic oil is installed. The oil separator main body 1 includes a main body valve block 11 for connecting other devices. The rear end of the main body valve block 11 has threads and oil ports for connecting to other components, and at the same time, its surface is nickel-plated, having the ability to prevent rust. The bottom end of the main body valve block 11 is installed at the near-rear end position of the top of the protective cover base 31. The oil distribution module 2 includes a distribution valve block 21 for distributing the main oil circuit supply and return oil. The bottom end of the distribution valve block 21 is installed at the near-front end position of the top of the protective cover base 31. The front end of the main body valve block 11 is connected to the rear end of the distribution valve block 21. The main body valve block 11 and the distribution valve block 21 are connected by bolts, and an O-ring is provided at the connection to enhance the seal. A check valve 23 for preventing oil backflow is installed at the front end of the distribution valve block 21.

[0029] Refer to Figure 2 - Figure 4, the oil distributor body 1 further includes a soft start accumulator 13 for realizing soft start from low pressure to high pressure. The soft start accumulator 13 is installed at the top of the main valve block 11 near the right end. A low-pressure accumulator 17 for absorbing the impact of the oil return circuit is installed at the top of the main valve block 11 near the right end of the soft start accumulator 13. A high-precision filter 12 for filtering hydraulic oil is installed at the top of the main valve block 11 near the rear end. A pressure reducing valve 16 for reducing the pressure of hydraulic oil is installed at the top of the main valve block 11 near the front end of the high-precision filter 12 and there are multiple groups of them. Multiple groups of solenoid valves 14 for realizing remote control are arranged at the top of the main valve block 11 near the front end of the pressure reducing valve 16. The solenoid valve 14 is a prior art and has a signal receiver inside, which can cooperate with signal transmission equipment to start or stop the remote control device.

[0030] Refer to Figure 3 - Figure 5 , a throttle valve 15 for regulating the flow rate of hydraulic oil is installed at the top of the main valve block 11 near the right end of the solenoid valve 14. The oil distribution module 2 further includes a high-pressure accumulator 22 for absorbing the impact of the high-pressure oil circuit. The high-pressure accumulator 22 is installed at the top of the sub-valve block 21 near the rear end. A pressure gauge 24 for measuring the pressure of the output hydraulic oil is installed at the connection of the one-way valve 23 and the sub-valve block 21. The outer wall of the protective cover base 31 is fixedly connected with a protective cover shell 32 for covering and protecting the whole device. The protective cover shell 32 is connected to the main valve block 11 and the sub-valve block 21 through bolts. Universal rotary lifting rings 33 for facilitating the operator to move the whole device are installed at the left and right ends of the outer wall of the protective cover shell 32 respectively.

[0031] Working principle: When starting the hydraulic oil distributor, the solenoid valve 14 opens the corresponding oil circuit according to the remote control signal. If starting from low pressure, the soft start accumulator 13 starts to work, slowly releases the stored energy, and gradually increases the pressure to avoid pressure mutation impact on the system. At the same time, the low-pressure accumulator 17 can also be used to absorb the impact during the oil return process. During the pressure regulation process, the throttle valve 15 and the pressure reducing valve 16 adjust the oil circuit pressure according to the system requirements to ensure that the output pressure is stable and meets the requirements.

[0032] After the hydraulic oil enters the oil distribution module 2, the sub-valve block 21 distributes the oil to each outlet according to the set oil circuit distribution method. Under high-pressure working conditions, the high-pressure accumulator 22 absorbs the pressure impact and maintains the pressure stability. The one-way valve 23 prevents the oil from flowing back and ensures the normal operation of the oil circuit. The pressure gauge 24 displays the oil circuit pressure in real time and provides pressure monitoring information for the operator.

[0033] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A large-flow soft-start hydraulic oil distributor, comprising a protective cover (3), characterized in that: The protective cover (3) includes a protective cover base (31). At a position near the front end of the top of the protective cover base (31), an oil separation module (2) is installed. At a position near the rear end of the top of the protective cover base (31), an oil separator main body (1) is installed. The oil separator main body (1) includes a main valve block (11). The bottom end of the main valve block (11) is installed at a position near the rear end of the top of the protective cover base (31). The oil separation module (2) includes a sub-valve block (21). The bottom end of the sub-valve block (21) is installed at a position near the front end of the top of the protective cover base (31). The front end of the main valve block (11) is connected to the rear end of the sub-valve block (21). A check valve (23) is installed at the front end of the sub-valve block (21). The oil separator main body (1) further includes a soft start accumulator (13). The soft start accumulator (13) is installed at a position near the right end of the top of the main valve block (11). A low-pressure accumulator (17) is installed at the top of the main valve block (11) near the right end of the soft start accumulator (13).

2. The large-flow soft-start hydraulic oil distributor according to claim 1, wherein: A high-precision filter (12) is installed at a position near the rear end of the top of the main valve block (11). Multiple pressure reducing valves (16) are installed at the top of the main valve block (11) near the front end of the high-precision filter (12).

3. The large-flow soft-start hydraulic oil distributor according to claim 2, characterized in that: Multiple solenoid valves (14) are provided at the top of the main valve block (11) near the front end of the pressure reducing valve (16).

4. The large-flow soft-start hydraulic oil distributor according to claim 3, characterized in that: A throttle valve (15) is installed at the top of the main valve block (11) near the right end of the solenoid valve (14).

5. The large-flow soft-start hydraulic oil distributor according to claim 1, characterized in that: The oil separation module (2) further includes a high-pressure accumulator (22). The high-pressure accumulator (22) is installed at a position near the rear end of the top of the sub-valve block (21). A pressure gauge (24) is installed at the connection between the check valve (23) and the sub-valve block (21).

6. The large-flow soft-start hydraulic oil distributor according to claim 1, wherein: The outer wall of the protective cover base (31) is fixedly connected to a protective cover shell (32).

7. The large-flow soft-start hydraulic oil distributor according to claim 6, characterized in that: Universal rotating lifting rings (33) are respectively installed at the left and right ends of the outer wall of the protective cover shell (32).

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