Testing device of hydraulic actuator cylinder

Abstract

The utility model relates to the technical field of hydraulic actuating cylinders, and provides a hydraulic actuating cylinder testing device, which comprises a bottom plate, a U-shaped plate and an L-shaped plate, the U-shaped plate and the L-shaped plate are fixedly mounted at the top of the bottom plate respectively, support plates are slidably connected to two sides of the inner wall of the U-shaped plate, and a lifting assembly is arranged in the U-shaped plate. Through the lifting assembly, the limiting assembly, the pressing assembly, the supporting plate, the first support and the second support, the hydraulic actuator cylinder is placed on the supporting plate, the fixed end and the rod end of a piston rod are located on the two sides of the inner walls of the first support and the second support respectively, the supporting plate is lifted by rotating the lifting assembly, and the fixed end of the hydraulic actuator cylinder and the hole position of the rod end of the piston rod are aligned with the limiting assembly; the limiting assembly is inserted into the fixed end of the hydraulic actuator cylinder and the hole position of the rod end of the piston rod, the fixed end and the piston rod are limited by the first support and the second support, the pressing assembly moves downwards to press the hydraulic actuator cylinder, and therefore the hydraulic actuator cylinder is conveniently limited and fixed, and movement is prevented from occurring easily in the measuring process.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic actuator technology, specifically to a testing device for a hydraulic actuator. Background Technology

[0002] Hydraulic actuators are reciprocating linear motion actuators, serving as the final actuators in a hydraulic system for external work. Their function is to directly convert hydraulic energy into mechanical energy. Hydraulic actuators are installed in different areas of the aircraft and operate different components, requiring varying actuator parameters, lengths, and strokes. Therefore, their lengths need to be adjusted during installation and maintenance to facilitate smooth installation.

[0003] A Chinese utility model patent (Publication No.: 202223488252.2) discloses a testing fixture for a hydraulic actuator. This fixture includes a test platform with a linear guide rail in the center; a first bracket mounted on the end of the linear guide rail for fixing the fixed end of the hydraulic actuator; a second bracket slidably mounted on the linear guide rail for fixing the piston rod end of the hydraulic actuator; a drive mechanism for driving the second bracket to move; and a length measuring mechanism for measuring the real-time length of the hydraulic actuator. This fixture can measure the length of the hydraulic actuator in real time, is simple to operate, and allows for measurement work to be completed by a single person.

[0004] However, in implementing the relevant technology, the following problems were found in the above-mentioned hydraulic actuator cylinder testing fixture: the above technical solution achieves the effect of a single person completing the measurement work, but it is not convenient to conveniently limit and fix the actuator cylinder during use. The hydraulic actuator cylinder is prone to movement during the measurement process, which affects the measurement effect and even causes safety hazards, resulting in a reduction in the efficiency and effect of the measurement work. Therefore, a test device for hydraulic actuator cylinder is proposed. Utility Model Content

[0005] This invention proposes a testing device for a hydraulic actuator, which solves the problems in related technologies such as the inconvenience of conveniently limiting and fixing the actuator, and the easy movement of the hydraulic actuator during measurement.

[0006] The technical solution of this utility model is as follows: A testing device for a hydraulically actuated cylinder, comprising:

[0007] A base plate, a U-shaped plate and an L-shaped plate are fixedly installed on the top of the base plate, and a support plate is slidably connected to both sides of the inner wall of the U-shaped plate. A lifting assembly is provided inside the U-shaped plate, and one end of the lifting assembly is hinged to the bottom of the support plate.

[0008] Bracket 1 is fixedly installed on one side of the U-shaped plate;

[0009] Support 2 is slidably connected to the top of the base plate, and limit components are respectively provided on one side of support 1 and support 2;

[0010] A clamping assembly is disposed through the top of the L-shaped plate.

[0011] Preferably, the lifting assembly includes a bidirectional threaded rod, a movable rod, and a connecting rod. The bidirectional threaded rod is rotatably connected to both sides of the inner wall of the U-shaped plate, the movable rod is slidably connected to the bottom inner wall of the U-shaped plate, the movable rod is threadedly connected to the bidirectional threaded rod, the top of the movable rod is hinged to the connecting rod, and one end of the connecting rod is hinged to the bottom of the support plate.

[0012] Preferably, the limiting assembly includes a cylinder, a limiting rod, a circular plate, a spring, and a connecting plate. The cylinder is located on one side of both the first bracket and the second bracket. The limiting rod is slidably connected through one end of the cylinder. The circular plate is located on the outer wall of the limiting rod. The spring is located on the inner wall of one end of the cylinder. One end of the spring is fixedly connected to one side of the circular plate. One end of the limiting rod is rotatably connected to the connecting plate.

[0013] Preferably, a positioning rod is fixedly installed on one side of each of the first and second brackets, and one end of the positioning rod is inserted into the connecting plate.

[0014] Preferably, the clamping assembly includes a cylinder and a pressure plate, the cylinder is located at the top of the L-shaped plate, and the output end of the cylinder passes through the L-shaped plate and is fixedly connected to the pressure plate.

[0015] Preferably, a vertical plate is fixedly installed on the top of the base plate, and an electro-hydraulic push rod is fixedly installed on one side of the vertical plate. The output end of the electro-hydraulic push rod passes through the vertical plate and is fixedly connected to one side of the bracket.

[0016] Preferably, an indicator rod is fixedly installed on one side of the second bracket, and a scale line is provided on the top of the base plate.

[0017] The working principle and beneficial effects of this utility model are as follows:

[0018] The hydraulic actuator cylinder is placed on the support plate via a lifting assembly, a limiting assembly, a pressing assembly, a support plate, and brackets one and two. The fixed end and the piston rod end are located on opposite sides of the inner wall of brackets one and two, respectively. The lifting assembly is rotated to raise and lower the support plate, aligning the holes of the fixed end of the hydraulic actuator cylinder and the piston rod end with the limiting assembly. The limiting assembly is inserted into the holes of the fixed end of the hydraulic actuator cylinder and the piston rod end, thus limiting the fixed end and the piston rod by brackets one and two. The pressing assembly moves downward to press the hydraulic actuator cylinder, thereby achieving convenient limiting and fixing of the hydraulic actuator cylinder and preventing easy movement during measurement. Attached Figure Description

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0021] Figure 2 This is a three-dimensional structural cross-sectional view of the present invention;

[0022] Figure 3 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0023] In the diagram: 1. Base plate; 2. U-shaped plate; 3. Lifting assembly; 31. Two-way threaded rod; 32. Moving rod; 33. Connecting rod; 4. Support plate; 5. Bracket 1; 6. Bracket 2; 7. Limiting assembly; 71. Cylinder; 72. Limiting rod; 73. Circular plate; 74. Spring; 75. Connecting plate; 8. L-shaped plate; 9. Pressing assembly; 91. Cylinder; 92. Pressure plate; 10. Vertical plate; 11. Electro-hydraulic push rod; 12. Scale line; 13. Indicator rod; 14. Positioning rod. Detailed Implementation

[0024] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0025] Please see Figure 1 - Figure 3 The present invention provides a testing device for a hydraulically actuated cylinder, comprising:

[0026] The base plate 1 is fixedly installed on the top of the base plate 1. The U-shaped plate 2 and L-shaped plate 8 are slidably connected to the two sides of the inner wall of the U-shaped plate 2. The U-shaped plate 2 is equipped with a lifting component 3. One end of the lifting component 3 is hinged to the bottom of the support plate 4.

[0027] Bracket 5 is fixedly installed on one side of U-shaped plate 2;

[0028] Support 2 6 is slidably connected to the top of base plate 1, and limit components 7 are respectively provided on one side of support 1 5 and support 2 6.

[0029] The clamping component 9 is disposed through the top of the L-shaped plate 8;

[0030] The hydraulic actuator is placed on the support plate 4, so that the fixed end and the piston rod end are located on both sides of the inner wall of bracket 5 and bracket 6 respectively. The limiting component 7 is inserted into the hole of the fixed end and the piston rod end of the hydraulic actuator, so that the fixed end and the piston rod are limited by bracket 5 and bracket 6. The pressing component 9 moves downward to press the hydraulic actuator, so that the hydraulic actuator has high stability.

[0031] Specifically, the lifting assembly 3 includes a bidirectional threaded rod 31, a moving rod 32, and a connecting rod 33. The bidirectional threaded rod 31 is rotatably connected to both sides of the inner wall of the U-shaped plate 2. The moving rod 32 is slidably connected to the bottom inner wall of the U-shaped plate 2. The moving rod 32 is threadedly connected to the bidirectional threaded rod 31. The top of the moving rod 32 is hinged to the connecting rod 33. One end of the connecting rod 33 is hinged to the bottom of the support plate 4.

[0032] Rotating the bidirectional threaded rod 31 drives the moving rod 32 to move. The moving rod 32 drives the support plate 4 to rise and fall through the connecting rod 33, thereby adjusting the height of the hydraulic actuator cylinder and facilitating the auxiliary support and easy fixation of the hydraulic actuator cylinder.

[0033] Specifically, the limiting component 7 includes a cylinder 71, a limiting rod 72, a circular plate 73, a spring 74, and a connecting plate 75. The cylinder 71 is located on one side of the first bracket 5 and the second bracket 6, respectively. The limiting rod 72 is slidably connected to one end of the cylinder 71. The circular plate 73 is located on the outer wall of the limiting rod 72. The spring 74 is located on the inner wall of one end of the cylinder 71. One end of the spring 74 is fixedly connected to one side of the circular plate 73. One end of the limiting rod 72 is rotatably connected to the connecting plate 75. One side of the first bracket 5 and the second bracket 6 are respectively fixedly installed with a positioning rod 14. One end of the positioning rod 14 is inserted into the connecting plate 75.

[0034] By adjusting the height of the support plate 4, the height of the hydraulic actuator is adjusted so that the fixed end of the hydraulic actuator and the end hole of the piston rod are aligned with the limiting rod 72. The connecting plate 75 is pulled away from the positioning rod 14, and the connecting plate 75 is rotated to a suitable angle and then released. The spring 74 drives the limiting rod 72 to move through the circular plate 73. The limiting rod 72 is inserted into the fixed end of the hydraulic actuator and the end hole of the piston rod, so that the fixed end and the piston rod are limited by the bracket 1 5 and the bracket 2 6.

[0035] Specifically, the clamping assembly 9 includes a cylinder 91 and a pressure plate 92. The cylinder 91 is located at the top of the L-shaped plate 8, and the output end of the cylinder 91 passes through the L-shaped plate 8 and is fixedly connected to the pressure plate 92.

[0036] After the hydraulic actuator is fixed in place, the output end of cylinder 91 drives the pressure plate 92 to move downward to press the hydraulic actuator, ensuring the stability of the hydraulic actuator.

[0037] Specifically, a vertical plate 10 is fixedly installed on the top of the base plate 1, an electric hydraulic push rod 11 is fixedly installed on one side of the vertical plate 10, the output end of the electric hydraulic push rod 11 passes through the vertical plate 10 and is fixedly connected to one side of the bracket 6, an indicator rod 13 is fixedly installed on one side of the bracket 6, and a scale line 12 is provided on the top of the base plate 1.

[0038] The reading of the scale line 12 marked by the indicator rod 13 is recorded. The output end of the electric hydraulic push rod 11 drives the bracket 2 6 to move towards the bracket 1 5, compressing the powerful spring inside the hydraulic actuator cylinder. After moving to the retracted position, the reading of the scale line 12 marked by the indicator rod 13 is recorded in real time, thereby realizing the measurement of the length of the hydraulic actuator cylinder.

[0039] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A testing device for a hydraulically actuated cylinder, characterized in that, include: The base plate (1) is fixedly installed on the top of the base plate (1) with a U-shaped plate (2) and an L-shaped plate (8). The inner walls of the U-shaped plate (2) are slidably connected to the two sides of the support plate (4). The U-shaped plate (2) is equipped with a lifting assembly (3). One end of the lifting assembly (3) is hinged to the bottom of the support plate (4). Bracket 1 (5) is fixedly installed on one side of the U-shaped plate (2); The second bracket (6) is slidably connected to the top of the base plate (1), and the first bracket (5) and the second bracket (6) are respectively provided with limit components (7) on one side. A clamping assembly (9) is disposed through the top of the L-shaped plate (8); The lifting assembly (3) includes a bidirectional threaded rod (31), a moving rod (32), and a connecting rod (33). The bidirectional threaded rod (31) is rotatably connected to both sides of the inner wall of the U-shaped plate (2). The moving rod (32) is slidably connected to the bottom inner wall of the U-shaped plate (2). The moving rod (32) is threadedly connected to the bidirectional threaded rod (31). The top of the moving rod (32) is hinged to the connecting rod (33). One end of the connecting rod (33) is hinged to the bottom of the support plate (4). The limiting assembly (7) includes a cylinder (71), a limiting rod (72), a circular plate (73), a spring (74), and a connecting plate (75). The cylinder (71) is located on one side of the first bracket (5) and the second bracket (6). The limiting rod (72) is slidably connected through one end of the cylinder (71). The circular plate (73) is located on the outer wall of the limiting rod (72). The spring (74) is located on the inner wall of one end of the cylinder (71). One end of the spring (74) is fixedly connected to one side of the circular plate (73). One end of the limiting rod (72) is rotatably connected to the connecting plate (75). The clamping assembly (9) includes a cylinder (91) and a pressure plate (92). The cylinder (91) is located at the top of the L-shaped plate (8), and the output end of the cylinder (91) is fixedly connected between the L-shaped plate (8) and the pressure plate (92).

2. The testing device for a hydraulically actuated cylinder according to claim 1, characterized in that: Positioning rods (14) are fixedly installed on one side of the first bracket (5) and the second bracket (6), and one end of the positioning rod (14) is inserted into the connecting plate (75).

3. The testing device for a hydraulically actuated cylinder according to claim 1, characterized in that: A vertical plate (10) is fixedly installed on the top of the base plate (1), and an electric hydraulic push rod (11) is fixedly installed on one side of the vertical plate (10). The output end of the electric hydraulic push rod (11) passes through the vertical plate (10) and is fixedly connected to one side of the bracket (6).

4. The testing device for a hydraulically actuated cylinder according to claim 1, characterized in that: An indicator rod (13) is fixedly installed on one side of the bracket (6), and a scale line (12) is provided on the top of the base plate (1).

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