Hydraulic cylinder test tool and hydraulic cylinder test system

Abstract

The utility model is applicable to the technical field of hydraulic cylinder performance testing, and provides a hydraulic cylinder testing tool and a hydraulic cylinder testing system.The hydraulic cylinder testing tool comprises a first fixing plate, an optical axis, a bearing plate, a sliding plate and a hydraulic cylinder, the first end of the optical axis is connected with the first fixing plate, and the sliding plate is connected with the optical axis in a sliding fit mode; the bearing plate is arranged on the sliding plate, and the first fixing plate and the sliding plate are connected through a hydraulic cylinder. The sliding plate is connected with the first fixing plate through the hydraulic cylinder. A bearing plate is arranged on the sliding plate and used for placing a heavy object, the hydraulic cylinder is driven to work so as to push the sliding plate and the heavy object to move up and down, and finally the test data of the hydraulic cylinder and the form of the hydraulic cylinder after failure are recorded by adjusting the test frequency of the hydraulic cylinder. The test tool is simple and reliable in structure, does not need to use specific instruments and equipment, can effectively control the cost of the test tool, can be additionally provided with other parts or instruments, and is high in expansibility.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic cylinder performance testing, in particular to a hydraulic cylinder testing tool and a hydraulic cylinder testing system. Background Art

[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). It has a simple structure and reliable operation. When it is used to achieve reciprocating motion, the deceleration device can be eliminated, and there is no transmission gap and the movement is smooth. Therefore, it is widely used in the hydraulic systems of various machines. For example, hydraulic cylinders are widely used in medical products (such as operating tables, etc.).

[0003] According to the relevant regulations on medical products, the key components selected for the product must have corresponding life test data and product morphology records after the components fail to ensure the stability of the product. For hydraulic cylinders, most of the instruments on the market currently use special instruments to perform life tests on hydraulic cylinders, but these instruments are very expensive, complex in structure, and have poor scalability. Utility Model Content

[0004] The embodiment of the utility model provides a hydraulic cylinder testing tool and a hydraulic cylinder testing system, aiming to solve the problems that the existing hydraulic cylinder testing instruments and equipment are expensive, complex in structure and relatively poor in scalability.

[0005] An embodiment of the utility model is implemented as follows: a hydraulic cylinder testing tool comprises a first fixed plate, an optical axis, a load-bearing plate, a sliding plate and a hydraulic cylinder, wherein the first end of the optical axis is connected to the first fixed plate, the sliding plate is slidably connected to the optical axis, the load-bearing plate is arranged on the sliding plate, and the first fixed plate and the sliding plate are connected via a hydraulic cylinder.

[0006] Furthermore, the hydraulic cylinder testing tooling also includes a second fixed plate and a vertical plate; the second fixed plate is connected to the second end of the optical axis, the second fixed plate is provided with a through hole, the vertical plate is penetrated through the through hole and movably cooperates with the through hole, the first end of the vertical plate is connected to the sliding plate, and the second fixed end of the vertical plate is connected to the load-bearing plate.

[0007] Furthermore, a plurality of optical axis retaining rings are arranged on the optical axis, and the second fixed plate and the optical axis retaining rings are used to limit the movable travel range of the sliding plate.

[0008] Furthermore, a linear bearing is provided on the sliding plate, and the linear bearing is connected with the optical axis in a sliding manner.

[0009] Furthermore, the sliding plate is also provided with a fixed bracket, and the fixed bracket is used to be connected to the telescopic shaft of the hydraulic cylinder.

[0010] Furthermore, the hydraulic cylinder test fixture also includes a fisheye bearing and a mounting shaft. The fixed bracket is provided with a mounting groove. The fisheye bearing is connected to the mounting groove through the mounting shaft. The fisheye bearing is connected to the telescopic shaft of the hydraulic cylinder.

[0011] Furthermore, the sliding plate is also provided with a stroke adjustment block, and the sliding plate and the fixed bracket are both detachably connected to the stroke adjustment block.

[0012] Furthermore, the hydraulic cylinder testing tool also includes an adjustable supporting foot cup arranged at the bottom of the first fixed plate.

[0013] Furthermore, the first fixing plate is provided with a fixing seat, and the fixing seat is used to lock the hydraulic cylinder.

[0014] In a second aspect, the present application also provides a hydraulic cylinder testing system, including a pump fluid control component and a hydraulic cylinder testing tool as described above, wherein the pump fluid control component is connected to a hydraulic cylinder in the hydraulic cylinder testing tool.

[0015] The beneficial effects achieved by the utility model are that the first fixed plate is provided with an optical axis, the sliding plate and the optical axis can be slidably matched, the load-bearing plate is provided on the sliding plate, the first fixed plate and the sliding plate are connected by a hydraulic cylinder, a heavy object can be placed on the load-bearing plate, and the load-bearing plate and the heavy object can be pushed up and down along the optical axis by driving the hydraulic cylinder. During the test, the test frequency of the hydraulic cylinder is adjusted to record the test data of the hydraulic cylinder and the form of the hydraulic cylinder after failure. The structure of the test fixture is simple and reliable, does not require the use of specific instruments and equipment, can effectively control the cost of the test fixture, and can add other components or instruments to the test fixture, and has strong expansibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of a hydraulic cylinder testing tool provided by an embodiment of the utility model;

[0017] Figure 2 It is a front view schematic diagram of an embodiment of a hydraulic cylinder testing tool provided by an embodiment of the utility model.

[0018] 100, first fixed plate; 110, fixed seat; 200, optical axis; 210, optical axis retaining ring; 300, sliding plate; 310, connecting part; 311, fixed bracket; 312, mounting groove; 313, mounting shaft; 314, fisheye bearing; 315, stroke adjustment block; 320, linear bearing; 400, second fixed plate; 500, vertical plate; 600, load-bearing plate; 700, adjustable support foot cup; 800, hydraulic cylinder; DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. Examples of embodiments are shown in the accompanying drawings, in which the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model. In addition, it should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.

[0020] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "left", "right", "horizontal", "top", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0022] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0023] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0024] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the utility model. In addition, the utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and / or settings discussed in itself. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0025] In this application, since the first fixed plate is provided with an optical axis, the sliding plate and the optical axis can be slidably matched, the load-bearing plate is provided on the sliding plate, the first fixed plate and the sliding plate are connected by a hydraulic cylinder, a heavy object can be placed on the load-bearing plate, and the load-bearing plate and the heavy object can be pushed up and down along the optical axis by driving the hydraulic cylinder. During the test, the test frequency of the hydraulic cylinder is adjusted to record the test data of the hydraulic cylinder and the shape of the hydraulic cylinder after failure. The structure of the test fixture is simple and reliable, and does not require the use of specific instruments and equipment, which can effectively control the cost of the test fixture, and other components or instruments can be added to the test fixture, which has strong expansibility.

[0026] Embodiment 1

[0027] like Figure 1 to Figure 2 As shown, one embodiment of the present application provides a hydraulic cylinder test fixture, including a first fixed plate 100, an optical axis 200, a sliding plate 300, a load-bearing plate 600 and a hydraulic cylinder 800, the first end of the optical axis 200 is connected to the first fixed plate 100, the sliding plate 300 is slidably connected to the optical axis 200, the load-bearing plate 600 is arranged on the sliding plate 300, and the first fixed plate 100 and the sliding plate 300 are connected by a hydraulic cylinder 800.

[0028] During implementation, the first fixed plate 100 can be regarded as the base of the hydraulic cylinder test fixture provided in the embodiment of the present application, and the hydraulic cylinder 800 can be fixedly placed on the first fixed plate 100 .

[0029] The optical axis 200 is installed on the first fixed plate 100. The optical axis 200 is a columnar structure. The first end of the optical axis 200 is connected to the first fixed plate 100 so that the length direction of the optical axis 200 is perpendicular to the plane where the first fixed plate 100 is located. Exemplarily, when the first fixed plate 100 is placed horizontally, the optical axis 200 is set perpendicular to the horizontal plane.

[0030] The optical axis 200 and the sliding plate 300 can be slidably matched so that the sliding plate 300 can slide along the length direction of the optical axis 200. For example, the sliding plate 300 is provided with a through hole, and the optical axis 200 is passed through the through hole, thereby limiting the sliding plate 300 to slide only along the length direction of the optical axis 200.

[0031] In some possible embodiments, at least one optical axis 200 may be provided. In the case of a certain number, the more optical axes 200 there are, the more stable the sliding activity of the sliding plate 300 is, which can effectively improve the operational stability and reliability of the hydraulic cylinder test fixture provided by the present application. On the other hand, the more optical axes 200 there are, the more complex the structure of the hydraulic cylinder test fixture provided by the present application is, the higher the processing difficulty is, and the cost is increased. Therefore, the number of optical axes 200 can be specifically set according to actual use requirements, for example, two, three or four optical axes 200 are fixedly installed on the first fixed plate 100, without limitation.

[0032] In some possible embodiments, the surface of the optical axis 200 is smooth to reduce the relative friction between the optical axis 200 and the sliding plate 300 , so that the sliding plate 300 can slide more smoothly relative to the optical axis 200 .

[0033] In some optional embodiments, lubricating oil may be applied to the surface of the optical axis 200 to further improve the sliding smoothness between the sliding plate 300 and the optical axis 200 .

[0034] The sliding plate 300 is connected to the hydraulic cylinder 800. In some embodiments, the sliding plate 300 is provided with a connecting portion 310, which is used to connect to the hydraulic cylinder 800. For example, the cylinder body of the hydraulic cylinder 800 is connected to the first fixed plate 100, and the telescopic shaft of the hydraulic cylinder 800 is connected to the connecting portion 310, so that the sliding plate 300 slides along the length direction of the optical axis 200 under the drive of the hydraulic cylinder 800.

[0035] In some possible embodiments, the connection portion 310 may be further adjustable relative to the sliding plate 300 . For example, the connection portion 310 may be extended or retracted to a certain extent to accommodate hydraulic cylinders 800 of different sizes and specifications, without limitation.

[0036] In some embodiments, the hydraulic cylinder 800 is also connected to a processor (not shown) or a driving device (not shown) to work under the drive of the processor or the driving device. When the hydraulic cylinder 800 is working, the telescopic shaft performs telescopic reciprocating motion.

[0037] In some possible embodiments, the hydraulic cylinder 800, the processor and / or the driving device are also connected to a detection device (not shown in the figure), through which the working parameters of the hydraulic cylinder 800 can be detected. The working parameters of the hydraulic cylinder 800 include but are not limited to working time, number of extensions and retractions, power, etc.

[0038] When conducting the test, first place a heavy object, such as a weight or a sandbag, on the load-bearing plate 600, then adjust the test frequency of the hydraulic cylinder 800 through a processor or a drive device, record the test data, and record the shape of the hydraulic cylinder 800 after the hydraulic cylinder 800 fails.

[0039] In this application, since the optical axis 200 is arranged on the first fixed plate 100, the sliding plate 300 can slide with the optical axis 200, the load-bearing plate 600 is arranged on the sliding plate 300, the first fixed plate 100 and the sliding plate 300 are connected by a hydraulic cylinder 800, a heavy object can be placed on the load-bearing plate 600, and the hydraulic cylinder 800 is driven to work to push the load-bearing plate 600 and the heavy object to move up and down along the optical axis 200. During the test, the test frequency of the hydraulic cylinder 80 is adjusted to record the test data of the hydraulic cylinder 800 and the form of the hydraulic cylinder 800 after failure. The structure of the test fixture is simple and reliable, does not require the use of specific instruments and equipment, can effectively control the cost of the test fixture, and can add other components or instruments to the test fixture, and has strong expansibility.

[0040] Embodiment 2

[0041] In some possible embodiments, the hydraulic cylinder testing tooling provided in the present application also includes a second fixed plate 400 and a vertical plate 500, the second fixed plate 400 is connected to the second end of the optical axis 200, the second fixed plate 400 is provided with a through hole, the vertical plate 500 is penetrated through the through hole and movably cooperates with the through hole, the first end of the vertical plate 500 is connected to the sliding plate 300, and the second end of the vertical plate 500 is connected to the load-bearing plate 600.

[0042] During implementation, the load-bearing plate 600, the second fixed plate 400 and the sliding plate 300 are arranged in sequence, that is, the sliding plate 300 is located on the first side of the second fixed plate 400, the load-bearing plate 600 is located on the second side of the second fixed plate 400, and the load-bearing plate 600 is connected to the sliding plate 300 through the vertical plate 500.

[0043] During implementation, the second fixed plate 400 is fixedly installed at the second end of the optical axis 200 away from the first fixed plate 100. At this time, the sliding plate 300 is located between the first fixed plate 100 and the second fixed plate 400. The first fixed plate 100 and the second fixed plate 400 are used to limit the moving stroke of the sliding plate 300 to avoid the sliding plate 300 from being separated from the optical axis 200, thereby improving the stability and reliability of the hydraulic cylinder test fixture.

[0044] In some possible embodiments, the second fixed plate 400 is provided with a through hole, the vertical plate 500 is penetrated in the through hole, and the vertical plate 500 can move relative to the through hole, the first end of the vertical plate 500 is connected to the sliding plate 300, and the second end of the vertical plate 500 is connected to the load-bearing plate 600, and the load-bearing plate 600 is used to bear heavy objects, such as the above-mentioned weights or sandbags. The gravity of the load-bearing plate 600 and the heavy objects is transmitted to the sliding plate 300 through the vertical plate 500, so that the sliding plate 300 has a downward trend, thereby generating pressure on the hydraulic cylinder 800, so as to test the use data of the hydraulic cylinder 800 under different pressures.

[0045] In some possible embodiments, the through-holes provided on the second fixed plate 400 are square holes, and the vertical plate 500 is in the shape of a long strip that matches the square holes. Through the above arrangement, the stability of the sliding of the through-holes of the vertical plate 500 on the second fixed plate 400 can be effectively ensured, thereby effectively improving the test accuracy of the hydraulic cylinder test fixture provided in the present application.

[0046] In some possible embodiments, lubricating oil or other liquids with lubricating function may be coated on the perforations on the second fixed plate 400 or the vertical plate 500, or balls or other components that reduce the friction damping between the vertical plate 500 and the perforations on the second fixed plate 400 may be installed in the perforations on the second fixed plate 400, so that the relative sliding between the vertical plate 500 and the second fixed plate 400 is smoother, thereby extending the service life of the hydraulic cylinder test fixture provided in the present application.

[0047] Embodiment 3

[0048] In some possible embodiments, the hydraulic cylinder test fixture provided in the present application further includes a plurality of optical axis retaining rings 210 disposed on the optical axis 200 , and the second fixed plate 400 and the optical axis retaining rings 210 are used to limit the movable travel range of the sliding plate 300 .

[0049] The optical axis retaining ring 210 is fixedly mounted on the optical axis 200 to limit the downward travel of the sliding plate 300. Similarly, the second fixing plate 400 is mounted on the second end of the optical axis 200 away from the first fixing plate 100 to limit the upward travel of the sliding plate 300 and protect the hydraulic cylinder 800. At the same time, due to the limiting effect of the optical axis retaining ring 210, the sliding plate 300 is suspended at a certain height, for example, the connecting portion 310 on the sliding plate 300 is suspended at a certain height, which is convenient for installation and connection with the telescopic shaft of the hydraulic cylinder 800.

[0050] In some possible embodiments, the optical axis retaining ring 210 and the optical axis 200 are adjustably connected, that is, the position of the optical axis retaining ring 210 can be set according to actual conditions to meet the testing requirements of hydraulic cylinders 800 of different sizes and specifications.

[0051] Embodiment 4

[0052] In some possible embodiments, the sliding plate 300 is provided with a linear bearing 320 , and the linear bearing 320 is slidably connected to the optical axis 200 .

[0053] During implementation, the linear bearing 320 has a through hole for the optical axis 200 to pass through, and the optical axis 200 can slide freely in the through hole. In other words, the linear bearing 320 can be regarded as a sleeve of the optical axis 200. When the linear bearing 320 is fixedly installed on the sliding plate 300, the sliding plate 300 cooperates with the optical axis 200 through the linear bearing 320 to achieve a sliding function.

[0054] The long through hole of the linear bearing 320 can better guide the optical axis 200, further improving the sliding stability and smoothness of the sliding plate 300.

[0055] In some possible embodiments, the sliding plate 300 is provided with a mounting hole (not shown in the figure), and the linear bearing 320 can be fixedly installed in the mounting hole, and the mounting structure is simple and reliable.

[0056] Embodiment 5

[0057] In some possible embodiments, the sliding plate 300 is further provided with a fixed bracket 311 , and the fixed bracket 311 is used to be connected to the telescopic shaft of the hydraulic cylinder 800 .

[0058] During implementation, the fixed bracket 311 is arranged on a side of the sliding plate 300 facing the first fixed plate 100. The fixed bracket 311 can be regarded as a groove arranged on the side of the sliding plate 300 facing the first fixed plate 100. The groove can be quickly connected to the telescopic shaft of the hydraulic cylinder 800. For example, the inner diameter of the groove is equal to or slightly larger than the diameter of the telescopic shaft of the hydraulic cylinder 800. During installation, the end of the telescopic shaft of the hydraulic cylinder 800 can be embedded in the groove to realize the connection between the sliding plate 300 and the telescopic shaft of the hydraulic cylinder 800, so that the test operation is stable and reliable.

[0059] In some possible embodiments, the fixing bracket 311 may also be a quick-release structure disposed on a side of the sliding plate 300 facing the first fixing plate 100, and the quick-release structure may be quickly connected to the telescopic shaft of the hydraulic cylinder 800 to improve installation efficiency and testing efficiency.

[0060] In some possible embodiments, the fixing bracket 311 is provided with a mounting groove 312 , and the telescopic shaft of the hydraulic cylinder 800 can be inserted into the mounting groove 312 to drive the sliding plate 300 to move up and down.

[0061] Furthermore, the hydraulic cylinder testing tooling provided in the present application also includes a fisheye bearing 314 and a mounting shaft 313 , and the mounting groove 312 of the fixed bracket 311 is cooperatively connected with the fisheye bearing 314 through the mounting shaft 313 , wherein the fisheye bearing 314 is used to connect with the telescopic shaft of the hydraulic cylinder 800 .

[0062] The fisheye bearing 314 is a connection-controlled bearing that can rotate and swing, and is commonly used in various connecting rod motion structures. Since the fixed bracket 311 is connected to the fisheye bearing 314 through the mounting shaft 313, it can effectively play a buffering role to protect the test fixture structure and the hydraulic cylinder 800.

[0063] Embodiment 6

[0064] In some possible embodiments, the sliding plate 300 is also provided with a stroke adjustment block 315, and the sliding plate 300 and the fixed bracket 311 are both detachably connected to the stroke adjustment block 315. Exemplarily, the connecting part 310 also includes a stroke adjustment block 315, and the sliding plate 300 and the fixed bracket 311 are connected via the stroke adjustment block 315, and the sliding plate 300 and the fixed bracket 311 are both detachably connected to the stroke adjustment block 315.

[0065] During implementation, the stroke adjustment block 315 is used to adjust the distance between the sliding plate 300 and the fixed bracket 311. Since the fixed bracket 311 is used to connect with the telescopic shaft of the hydraulic cylinder 800, the stroke adjustment block 315 can be replaced according to the hydraulic cylinders 800 of different sizes and specifications, thereby adjusting the position of the fixed bracket 311 to adapt to hydraulic cylinders 800 of different strokes, thereby having a wider range of applications.

[0066] Embodiment 7

[0067] In some possible embodiments, the hydraulic cylinder testing tool provided in the present application further includes an adjustable supporting foot cup 700 disposed at the bottom of the first fixing plate 100 .

[0068] During implementation, a plurality of adjustable support foot cups 700 are provided, and the plurality of adjustable support foot cups 700 can be evenly distributed at the bottom of the first fixing plate 100 .

[0069] In some possible embodiments, the adjustable support foot cup 700 is used to adjust the posture of the first fixed plate 100 so that the entire hydraulic cylinder test fixture is in a horizontal state, thereby ensuring stability and reliability during the test process.

[0070] Embodiment 8

[0071] In some possible embodiments, the hydraulic cylinder testing tool provided in the present application further includes a fixing seat 110 disposed on the first fixing plate 100 , and the fixing seat 110 is used to lock the hydraulic cylinder 800 .

[0072] During implementation, a fixing seat 110 is provided on the first fixing seat 110, and the fixing seat 110 can lock and fix the hydraulic cylinder 800 on the first fixing plate 100, thereby ensuring the operating stability of the test tooling, avoiding safety accidents caused by test failure due to the tilt of the hydraulic cylinder 800, and improving safety.

[0073] In some embodiments, the working process and principle of the hydraulic cylinder testing tool provided by the present application are as follows:

[0074] First, install the hydraulic cylinder 800 on the fixing seat 110 on the first fixing plate 100, connect the telescopic shaft of the hydraulic cylinder 800 to the fixing bracket 311 through the fisheye bearing 314, and then adjust the adjustable supporting foot cup 700 at the bottom of the tooling to ensure that the entire tooling is in a horizontal state, and then place a certain number of weights or sandbags on the load-bearing plate 600 according to the limit load requirements, and finally adjust the test frequency of the hydraulic cylinder 800 through the controller, and record the test data and the morphology after failure.

[0075] Embodiment 9

[0076] In some possible embodiments, the present application also provides a hydraulic cylinder testing system, including a pump fluid control component and a hydraulic cylinder testing tool as described above, wherein the pump fluid control component is connected to a hydraulic cylinder in the hydraulic cylinder testing tool.

[0077] During implementation, the pump fluid control component can refer to the above-mentioned processor, driving device and detection device. The pump fluid control component can detect the working parameters of the hydraulic cylinder 800 such as working time, extension and retraction times and power, without limitation.

[0078] In the present application, since a plurality of optical axes 200 are arranged on the first fixed plate 100, the sliding plate 300 can slide with the optical axis 200, and when the hydraulic cylinder 800 is fixedly installed at the installation position of the first fixed plate 100, the sliding plate 300 is connected to the telescopic shaft of the hydraulic cylinder 800 through the connecting portion 310. The sliding plate 300 is used to place heavy objects, and the telescopic shaft is extended and retracted by driving the hydraulic cylinder 800 to work, thereby pushing the sliding plate 300 and the heavy objects to move up and down, and finally, by adjusting the test frequency of the hydraulic cylinder, the test data of the hydraulic cylinder 800 and the form of the hydraulic cylinder 800 after failure are recorded. The test fixture has a simple and reliable structure, does not require the use of specific instruments and equipment, can effectively control the cost of the test fixture, and can be equipped with other components or instruments on the test fixture, and has strong expansibility.

[0079] Those skilled in the art can clearly understand that, for the convenience and simplicity of description, the structure and implementation principle of the hydraulic cylinder testing system described above can refer to the corresponding structure and implementation principle in the aforementioned embodiments one to eight, and will not be repeated here.

[0080] It is understandable that those skilled in the art can, under the guidance of the above embodiments, combine various implementation methods in the above embodiments, for example, combine embodiment 1 with embodiment 2 to obtain technical solutions of multiple implementation methods.

[0081] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hydraulic cylinder testing tool, characterized in that: It includes a first fixed plate, an optical axis, a load-bearing plate, a sliding plate and a hydraulic cylinder. The first end of the optical axis is connected to the first fixed plate, the sliding plate is slidably connected to the optical axis, the load-bearing plate is arranged on the sliding plate, and the first fixed plate and the sliding plate are connected through the hydraulic cylinder.

2. The hydraulic cylinder testing tool as claimed in claim 1, characterized in that: The hydraulic cylinder testing fixture also includes a second fixed plate and a vertical plate; the second fixed plate is connected to the second end of the optical axis, the second fixed plate is provided with a through hole, the vertical plate is penetrated through the through hole and movably cooperates with the through hole, the first end of the vertical plate is connected to the sliding plate, and the fixed second end of the vertical plate is connected to the load-bearing plate.

3. The hydraulic cylinder testing tool as claimed in claim 2, characterized in that: A plurality of optical axis retaining rings are also arranged on the optical axis, and the second fixed plate and the optical axis retaining rings are used to limit the movable travel range of the sliding plate.

4. The hydraulic cylinder testing tool as claimed in claim 1, characterized in that: The sliding plate is provided with a linear bearing, and the linear bearing is connected with the optical axis in a sliding manner.

5. The hydraulic cylinder testing tool as claimed in claim 1, characterized in that: The sliding plate is also provided with a fixed bracket, and the fixed bracket is used to be connected with the telescopic shaft of the hydraulic cylinder.

6. The hydraulic cylinder testing tool as claimed in claim 5, characterized in that: The hydraulic cylinder testing fixture also includes a fisheye bearing and a mounting shaft. The fixed bracket is provided with a mounting groove. The fisheye bearing is connected to the mounting groove via the mounting shaft. The fisheye bearing is connected to the telescopic shaft of the hydraulic cylinder.

7. The hydraulic cylinder testing tool as claimed in claim 5, characterized in that: The sliding plate is also provided with a stroke adjustment block, and the sliding plate and the fixed bracket are both detachably connected to the stroke adjustment block.

8. The hydraulic cylinder testing tool as claimed in claim 1, characterized in that: The hydraulic cylinder testing tool also includes an adjustable supporting foot cup arranged at the bottom of the first fixing plate.

9. The hydraulic cylinder testing tool as claimed in claim 1, characterized in that: The first fixing plate is provided with a fixing seat, and the fixing seat is used to lock the hydraulic cylinder.

10. A hydraulic cylinder testing system, characterized in that: It comprises a pump fluid control component and a hydraulic cylinder testing tool as claimed in any one of claims 1 to 9, wherein the pump fluid control component is connected to a hydraulic cylinder in the hydraulic cylinder testing tool.

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