Multifunctional hydraulic test bed

Abstract

The utility model discloses a multifunctional hydraulic test bench, which relates to the technical field of hydraulic test equipment, and comprises a test device and a master control device for controlling the operation of the test device, and the test device comprises an irradiation device, a temperature control assembly for adjusting the temperature and an air pressure adjusting assembly for adjusting the air pressure. The humidity adjusting assembly is used for adjusting humidity, and the main control device can control the workbench to vibrate at different frequencies. According to the technical scheme, the main control device is adopted to remotely control the test device to perform the simulation environment test on the to-be-tested equipment, and according to different environment test requirements, the test device can correspondingly provide a fast-temperature-change high and low temperature test environment, an irradiation test environment, a high and low pressure test environment, a damp and hot test environment and a vibration test environment; therefore, a single test device can be integrated to test multiple environments of the to-be-tested equipment, multiple test environments can be switched conveniently, and the use convenience and the comprehensive performance of the test device are improved.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic testing equipment technology, and in particular to a multifunctional hydraulic testing bench. Background Technology

[0002] The hydraulic component comprehensive test bench is mainly used for performance testing of hydraulic pumps, hydraulic motors, hydraulic valves, and hydraulic cylinders. It can test various specifications and series of hydraulic components and is suitable for pressure resistance testing of various equipment.

[0003] Hydraulic test benches are widely used due to their ease of use. However, they can only perform hydraulic tests under normal temperature and pressure conditions, and cannot meet the requirements for hydraulic testing under irradiation, high-altitude low-pressure, or vibration conditions. If hydraulic testing of equipment under high-altitude low-pressure, vibration, or irradiation conditions is required, it would cause considerable inconvenience. Therefore, it is necessary to develop a hydraulic test bench with an added multifunctional environmental testing device to solve the aforementioned problems. Summary of the Invention

[0004] The main purpose of this invention is to propose a multifunctional hydraulic test bench, which aims to improve the overall performance of the hydraulic test bench.

[0005] To achieve the above objectives, the present invention proposes a multifunctional hydraulic test bench, which includes a test device and a main control device for controlling the operation of the test device. The test device includes a housing shell and a receiving cavity opened inside the housing shell. A worktable for placing the device to be tested is provided in the receiving cavity.

[0006] An irradiation device is installed on the inner wall of the cavity away from the workbench. The outer shell of the box is also equipped with a temperature control component for adjusting the temperature inside the cavity, an air pressure regulating component for adjusting the air pressure inside the cavity, and a humidity regulating component for adjusting the humidity inside the cavity. The main control device can control the workbench to vibrate at different frequencies.

[0007] In one embodiment, the main control device controls the vibration frequency range of the worktable from 2 Hz to 200 Hz, enabling three orthogonal axial vibrations.

[0008] In one embodiment, a shock-absorbing component is provided between the workbench and the outer shell of the housing, the shock-absorbing component being used to reduce the vibration transmitted from the workbench to the outer shell of the housing.

[0009] In one embodiment, the test apparatus has at least two layers, including at least one working layer and at least one equipment layer. Both the working layer and the equipment layer are provided with doors. The irradiation device and the worktable are both located on the working layer. At least a portion of the temperature control component, the air pressure regulation component, and the humidity regulation component are located on the working layer.

[0010] In one embodiment, the temperature control assembly includes a condensation assembly and a heating assembly, wherein the heating assembly is disposed on adjacent sides of the hatch in the working layer; and the condensation assembly is disposed on the opposite side of the hatch in the working layer.

[0011] In one embodiment, the temperature control component has a temperature adjustment range of -70 ℃ to 150 ℃ and a temperature change rate of less than or equal to 30 ℃ / min.

[0012] In one embodiment, the humidity regulating component, temperature regulating component, and air pressure regulating component can be used individually or at least both simultaneously.

[0013] In one embodiment, the humidity regulation component has a humidity regulation range of 20% RH-98% RH.

[0014] In one embodiment, the pressure regulating component has a pressure regulating range of 2.51 kPa to 26.4 kPa and a pressure change rate range of 1 kPa / min to 10 kPa / min.

[0015] In one embodiment, the horizontal plane of the workbench is lower than the temperature regulating component in the receiving cavity, and the air pressure regulating component and the humidity regulating component are close to the lowest horizontal plane of the workbench.

[0016] The technical solution of this utility model adopts a main control device to remotely control the test device to conduct simulated environmental tests on the equipment under test. Moreover, according to different environmental test requirements, the test device can provide rapid temperature change high and low temperature test environment, irradiation test environment, high and low pressure test environment, damp heat test environment, and vibration test environment. This enables a single test device to integrate multiple environmental tests on the equipment under test, and multiple test environments can be easily switched, improving the ease of use and the overall performance of the test device. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the structure of an embodiment of the multifunctional hydraulic test bench provided by this utility model;

[0019] Figure 2 A schematic diagram of the structure of the test device in one embodiment of the multifunctional hydraulic test bench provided by this utility model;

[0020] Figure 3 A schematic diagram of the working principle of the condenser component in one embodiment of the multifunctional hydraulic test bench provided by this utility model.

[0021] Explanation of icon numbers:

[0022] 1. Multifunctional hydraulic testing bench;

[0023] 11. Test apparatus; 12. Main control device;

[0024] 111. Outer shell; 112. Receiving cavity; 113. Working layer; 114. Equipment layer;

[0025] 1111, Workbench; 1112, Irradiation device; 1113, Temperature control assembly; 1114, Air pressure regulation assembly; 1115, Humidity regulation assembly; 1116, Door;

[0026] 11131. Condensation component; 11132. Heating component.

[0027] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0029] It should be noted that if any directional indication (such as up, down, left, right, front, back, etc.) is involved in the embodiments of this utility model, such directional indication is only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indication will also change accordingly. Unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0030] Furthermore, if the embodiments of this utility model involve descriptions such as "first," "second," etc., these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. Furthermore, the use of "and / or" or "and / or" throughout the text includes three parallel options; for example, "A and / or B" includes option A, option B, or options where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0031] The hydraulic component comprehensive test bench is mainly used for performance testing of hydraulic pumps, hydraulic motors, hydraulic valves, and hydraulic cylinders. It can test various specifications and series of hydraulic components and is suitable for pressure resistance testing of various equipment.

[0032] Hydraulic test benches are widely used due to their ease of use. However, they can only perform hydraulic tests under normal temperature and pressure conditions, and cannot meet the requirements for hydraulic tests under irradiation, high-altitude low-pressure, or vibration conditions. If hydraulic testing of equipment under high-altitude low-pressure, vibration, or irradiation conditions is required, it would cause considerable inconvenience. Therefore, it is necessary to develop a hydraulic test bench with an added multi-functional environmental testing device to solve the aforementioned problems.

[0033] This utility model proposes a multifunctional hydraulic test bench 1.

[0034] Please combine Figures 1-3 In one embodiment of the present invention, the multifunctional hydraulic test bench 1 includes a test device 11 and a main control device 12 for controlling the operation of the test device 11. The test device 11 includes a housing 111 and a receiving cavity 112 opened inside the housing 111. A workbench 1111 for placing the device to be tested is provided in the receiving cavity 112.

[0035] An irradiation device 1112 is installed on the inner wall of the cavity 112 away from the workbench 1111. The outer shell 111 of the housing is also equipped with a temperature control component 1113 for adjusting the temperature inside the cavity 112, an air pressure regulating component 1114 for adjusting the air pressure inside the cavity 112, and a humidity regulating component 1115 for adjusting the humidity inside the cavity 112. The main control device 12 can control the workbench 1111 to vibrate at different frequencies.

[0036] Define the end of the outer shell 111 closest to the ground as the bottom end and the end furthest from the ground as the top end.

[0037] It should be noted that the workbench 1111 is located at the bottom of the inner cavity of the housing 111, while the irradiation device 1112 is located at the top of the inner cavity 112 of the housing 111, and is used to provide an irradiation test environment for the device under test placed on the workbench 1111.

[0038] The temperature control component 1113 includes a condensation component 11131 and a heating component 11132, which respectively perform efficient cooling and heating processes on the containment cavity 112 to simulate the high and low temperature test environment with rapid temperature changes.

[0039] The air pressure regulating component 1114 increases the air pressure in the housing 112 by continuously supplying gas into the housing 112, or decreases the air pressure in the housing 112 by extracting gas, thereby controlling the air pressure regulation in the housing 112 and thus simulating the test environment of high and low pressure.

[0040] The humidity control component 1115 can atomize water and continuously supply it into the receiving cavity 112 to increase the humidity in the receiving cavity 112. It can also be used in conjunction with a temperature control device to adjust the temperature and humidity to simulate a hot and humid environment.

[0041] The worktable 1111 inside the test device 11 can vibrate by being connected to and driven by a drive motor, thereby simulating the vibration test conditions.

[0042] Specifically, the workbench 1111 includes a work surface for placing the device under test, and the work surface also includes a fixing component for fixing the device under test. When the workbench 1111 vibrates, it can fix the device under test and prevent the device under test from shifting due to vibration, which could cause it to touch other devices and cause wear or even damage.

[0043] Understandably, the test device 11 provided by this utility model can perform vibration tests on the equipment under test. That is, the workbench 1111 vibrates by being driven by a motor, and the vibration is transmitted to the outer shell 111, causing the outer shell 111 to vibrate together. Therefore, it is necessary to perform vibration damping treatment on the outer shell 111 or between the workbench 1111 and the outer shell 111.

[0044] Specifically, in the embodiments of this utility model, a shock-absorbing component (not shown in the figure) is provided between the workbench 1111 and the outer shell 111. The shock-absorbing component is used to weaken the vibration transmission from the workbench 1111 to the outer shell 111, thereby reducing the impact of the vibration of the workbench 1111 on the outer shell 111.

[0045] Optionally, in an embodiment of this utility model, the main control device 12 controls the vibration frequency range of the worktable 1111 to be 2 Hz to 200 Hz, which can realize three orthogonal axial vibrations.

[0046] Specifically, the three orthogonal axes are two orthogonal axes parallel to the ground, the X-axis and the Y-axis, and the Z-axis perpendicular to the ground.

[0047] In an embodiment of this utility model, the test device 11 has at least two layers, including at least one working layer 113 and at least one equipment layer 114. Both the working layer 113 and the equipment layer 114 are provided with hatches 1116. The irradiation device 1112 and the worktable 1111 are both provided on the working layer 113. At least a portion of the temperature control component 1113, the air pressure regulating component 1114 and the humidity regulating component 1115 are provided on the working layer 113.

[0048] Specifically, in this embodiment of the present invention, the working layer 113 is a single layer, disposed at the end of the outer shell 111 away from the ground, and the equipment layer 114 is a single layer, disposed at the end of the outer shell 111 close to the ground.

[0049] The hatch 1116 makes it easier for users to place or remove the device under test, as well as to view or replace the device components, thus facilitating use and maintenance.

[0050] It should be noted that the temperature control component 1113, the air pressure regulation component 1114 and the humidity component include a working part that directly performs work on the receiving cavity 112, and a support part that provides support for the working part. The number of devices in the support part varies and the size varies, so it is not necessary to set them all in the working layer 113, thereby reducing the impact of the support part on the environment inside the working layer 113 when it is working.

[0051] In an embodiment of this utility model, the heating assembly 11132 is disposed on both sides of the hatch 1116 in the working layer 113; the condensing assembly 11131 is disposed on the opposite side of the hatch 1116 in the working layer 113.

[0052] It should be noted that the condensing assembly 11131 cools the receiving cavity 112 by exchanging heat between the liquid in the condensing pipe and the receiving cavity 112 in the working layer 113. The condensing pipe is exposed inside and outside the receiving cavity 112, but its two ends are embedded in the shell wall of the outer shell 111. Therefore, it is necessary to seal the contact points between the two ends of the condensing pipe and the shell wall to prevent gas leakage from affecting the various values ​​in the receiving cavity 112. Therefore, the condensing pipe cannot be set on the adjacent sides of the hatch 1116 to increase the possibility of leakage.

[0053] Optionally, the heating element 11132 can be a heating resistance wire or a high-temperature gas to raise the temperature. There are no restrictions here, and the actual situation shall prevail.

[0054] Specifically, the heating components 11132 are located on both sides adjacent to the hatch 1116, and simultaneously heat the equipment under test.

[0055] In the embodiments of this utility model, the temperature adjustment range of the temperature control component 1113 is -70 ℃ to 150 ℃, and the temperature change rate is less than or equal to 30 ℃ / min.

[0056] It should be noted that the condenser pipe of the condenser assembly 11131 is supplied with low-temperature condensate through the support section and exchanges heat with the receiving cavity 112. After that, it returns to the support section to cool again and then enters the cooling cycle.

[0057] The temperature of the cavity 112 is affected by the cooling limit, and can reach as low as -70 ℃.

[0058] Similarly, the heating component 11132 provides heat to the receiving cavity 112 to raise its temperature. Therefore, the temperature of the receiving cavity 112 is affected by the heating limit and can reach up to 150 °C.

[0059] Specifically, in the embodiments of this utility model, the humidity regulating component 1115, the temperature regulating component, and the air pressure regulating component 1114 can be used individually or at least both can be used simultaneously.

[0060] Optionally, the humidity control component 1115 and the temperature control component can be used simultaneously;

[0061] Optionally, the humidity regulating component 1115 and the air pressure regulating component 1114 can be used simultaneously;

[0062] Optionally, the temperature regulating component and the air pressure regulating component 1114 can be used simultaneously;

[0063] Optionally, the humidity control component 1115, the temperature control component, and the air pressure control component 1114 can be used simultaneously.

[0064] In an embodiment of this utility model, the humidity adjustment range of the humidity adjustment component 1115 is 20% RH-98% RH.

[0065] Specifically, the humidity regulation rate is affected by the liquid atomization rate and the mist inlet rate.

[0066] In the embodiments of this utility model, the air pressure regulating component 1114 has an air pressure regulating range of 2.51 kPa-26.4 kPa and an air pressure change rate range of 1 kPa / min-10 kPa / min.

[0067] In an embodiment of this utility model, the working surface of the workbench 1111 is at a horizontal level lower than the temperature regulating component in the receiving cavity 112, and the air pressure regulating component 1114 and the humidity regulating component 1115 are close to the lowest horizontal level of the workbench 1111.

[0068] Understandably, the size of the device under test can vary. When the workbench 1111 is too high, the vibration test will require the drive motor to supply more energy and the vibration interference on the work surface will be greater. Correspondingly, the irradiation range of the irradiation device 1112 will be smaller and the space utilization rate within the containment cavity 112 will be lower. However, this does not prevent the device under test from being adapted to larger sizes.

[0069] Therefore, by limiting the position of the working surface of the workbench 1111, it is possible to accommodate larger-volume test equipment, while increasing the irradiation range of the irradiation device 1112 on the test equipment, and the temperature control component 1113 and humidity adjustment component 1115 can directly act on the test equipment.

[0070] The technical solution of this utility model adopts a main control device 12 to remotely control the test device 11 to conduct simulated environmental tests on the equipment under test. Moreover, according to different environmental test requirements, the test device 11 can provide rapid temperature change high and low temperature test environment, irradiation test environment, high and low pressure test environment, damp heat test environment, and vibration test environment. This enables a single test device 11 to integrate multiple environmental tests on the equipment under test, and multiple test environments can be easily switched, improving the ease of use and the overall performance of the test device 11.

[0071] It should be understood that the terms "one embodiment" or "one example" throughout the specification mean that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present invention. Therefore, "in one embodiment" or "in one example" appearing throughout the specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Those skilled in the art should also recognize that the embodiments described in the specification are optional embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0072] In various embodiments of this utility model, it should be understood that the sequence number of each process does not necessarily imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of this utility model embodiment.

[0073] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, or they may sometimes be executed in reverse order, depending on the functions involved. It is particularly important to note that each block in a block diagram and / or flowchart, and combinations of blocks in block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0074] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A multifunctional hydraulic testing bench, characterized in that: The multifunctional hydraulic test bench includes a test device and a main control device for controlling the operation of the test device. The test device includes a housing shell and a receiving cavity opened inside the housing shell. The receiving cavity is equipped with a worktable for placing the device to be tested. An irradiation device is installed on the inner wall of the cavity away from the workbench. The outer shell of the box is also equipped with a temperature control component for adjusting the temperature inside the cavity, an air pressure regulating component for adjusting the air pressure inside the cavity, and a humidity regulating component for adjusting the humidity inside the cavity. The main control device can control the workbench to vibrate at different frequencies.

2. The multifunctional hydraulic test bench as described in claim 1, characterized in that: The main control device controls the vibration frequency range of the worktable from 2 Hz to 200 Hz, and can achieve three orthogonal axial vibrations.

3. The multifunctional hydraulic test bench as described in claim 1, characterized in that: A shock-absorbing component is provided between the workbench and the outer shell of the housing. The shock-absorbing component is used to reduce the vibration transmitted from the workbench to the outer shell of the housing.

4. The multifunctional hydraulic test bench as described in claim 1, characterized in that: The test apparatus has at least two layers, including at least one working layer and at least one equipment layer. Both the working layer and the equipment layer are provided with doors. The irradiation device and the worktable are both located on the working layer. At least a portion of the temperature control component, the air pressure regulation component, and the humidity regulation component are located on the working layer.

5. The multifunctional hydraulic testing bench as described in claim 4, characterized in that: The temperature control assembly includes a condensation assembly and a heating assembly. The heating assembly is located on both sides of the hatch in the working layer, adjacent to each other. The condensation assembly is located on the opposite side of the hatch in the working layer.

6. The multifunctional hydraulic test bench as described in claim 1, characterized in that: The temperature control component has a temperature adjustment range of -70 ℃ to 150 ℃ and a temperature change rate of less than or equal to 30 ℃ / min.

7. The multifunctional hydraulic test bench as described in claim 1, characterized in that: The humidity control component, temperature control component, and air pressure control component can be used individually or at least both simultaneously.

8. The multifunctional hydraulic test bench as described in claim 1, characterized in that: The humidity regulation component has a humidity regulation range of 20% RH-98% RH.

9. The multifunctional hydraulic test bench as described in claim 1, characterized in that: The pressure regulating component has a pressure regulating range of 2.51 kPa to 26.4 kPa and a pressure change rate range of 1 kPa / min to 10 kPa / min.

10. The multifunctional hydraulic test bench as described in claim 1, characterized in that: The horizontal plane of the workbench is lower than the temperature regulating component in the receiving cavity, and the air pressure regulating component and humidity regulating component are close to the lowest horizontal plane of the workbench.

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