Push rod actuator retaining force and service life testing equipment

Abstract

The utility model relates to the technical field of test equipment, in particular to push rod actuator retention and service life test equipment, which comprises a push rod actuator, a test bench, a cylinder, a load assembly and a slider, the push rod actuator is arranged on the test bench, the slider is arranged at the actuating end of the push rod actuator, and the cylinder is arranged on the test bench. The load assembly is connected with the sliding block, and the air cylinder and the actuating end of the push rod actuator can act on the sliding block. During testing, the push rod actuator is installed on the testing rack, the air cylinder and the push rod actuator can push the sliding block to move, after the air cylinder retracts, the loading force is instantly loaded to the push rod actuator through the sliding block, and meanwhile the service life can be simply and rapidly tested.

Description

Technical Field

[0001] This utility model belongs to the field of testing equipment technology, and specifically relates to a device for testing the holding force and life of a push rod actuator. Background Technology

[0002] Currently, with economic development and social progress, people's living standards have improved significantly. Home appliances, as indispensable electrical appliances in people's lives, are constantly influencing their lifestyles. When push rod actuators are applied to the home appliance industry, the rack and pinion mechanism needs to maintain a holding force for a period of time after being extended.

[0003] Existing push rod actuators require a force of 100-200N to be applied to the actuator when it stops after the push rod is extended, in order to test the push rod holding force. Current static holding force testing equipment uses a cylinder to push the push rod, but the cylinder has a slow loading speed and retracts immediately upon power failure, failing to provide instantaneous force.

[0004] Therefore, it is necessary to design a device for testing the holding force and lifespan of a push rod actuator that can instantly apply force to the push rod. Utility Model Content

[0005] Purpose of the utility model: In order to overcome the above shortcomings, this utility model provides a test device for holding force and life of push rod actuator. It is reasonably designed and has a simple structure. During the test, when the push rod stops, the load force can be instantaneously applied to the push rod.

[0006] Technical Solution: To achieve the above objectives, this utility model provides a device for testing the holding force and lifespan of a push rod actuator, including a push rod actuator, a test bench, a cylinder, a load assembly, and a slider. The push rod actuator is mounted on the test bench, the slider is located at the actuating end of the push rod actuator, the load assembly is connected to the slider, and the cylinder and the actuating end of the push rod actuator can act on the slider. During testing, the push rod actuator is mounted on the test bench, and the cylinder and push rod actuator can push the slider to move. After the cylinder retracts, the load force is instantaneously applied to the push rod actuator through the slider.

[0007] Furthermore, the load assembly includes a fixed pulley, a traction rope, and a weight. One end of the traction rope is connected to the slider, and the other end passes around the fixed pulley and is connected to the weight. The fixed pulley converts the gravity of the weight into a thrust force, which is then applied to the push rod actuator. The structure is simple and reliable.

[0008] Furthermore, the fixed pulley is installed via a pulley bracket, which is located at the rear end of the push rod actuator.

[0009] Furthermore, it also includes a slider guide rail, on which the slider is slidably mounted, and the slider can slide back and forth.

[0010] Furthermore, it also includes a temperature control chamber, within which the load assembly, test bench, actuator, and slider are housed. The temperature control chamber can regulate its internal temperature, thereby simulating test environments at different temperatures.

[0011] Furthermore, the cylinder is located on the side of the temperature control box. The cylinder contacts the slider via a set of connecting rods that pass through the side wall of the temperature control box, and a push block is provided at the end of the connecting rods. The cylinder pushes the connecting rods to act on the slider, causing it to slide. The push block at the end of the connecting rods contacts the slider, making the thrust of the cylinder act on the slider more evenly.

[0012] Furthermore, the push rod actuator includes a push rod and a drive motor. The push rod has toothed surfaces, and the output shaft of the drive motor has a gear. The toothed surfaces on the push rod mesh with the gear. The drive motor drives the gear to rotate, causing the push rod to extend or retract.

[0013] As can be seen from the above technical solution, this utility model has the following beneficial effects:

[0014] 1. This utility model provides a device for testing the holding force and life of a push rod actuator. During testing, the push rod actuator is installed on a test bench. During the extension phase of the push rod, the magnitude of the thrust applied by the cylinder and the push rod together is equal to the weight of the weight. When the push rod stops after reaching its stroke, the control cylinder retracts, and the weight of the weight is instantly converted into a thrust through the slider and loaded onto the push rod, thus solving the technical problem that the prior art cannot provide instantaneous force.

[0015] 2. This utility model can also be used to test the lifespan of a push rod actuator. The force applied to the push rod and cylinder is equal to the force of the weight. When the push rod and cylinder run together, after the push rod reaches its stroke, the cylinder force increases (the applied force is equal to the push rod's thrust). At this time, the push rod can retract, and then the cylinder also retracts. This process can be repeated to test the lifespan of the push rod actuator. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a push rod actuator holding force and life testing device according to the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of the load component described in this utility model;

[0018] Figure 3 This is a schematic diagram of the push rod actuator described in this utility model.

[0019] In the diagram: 1-Push rod actuator, 11-Push rod, 12-Drive motor, 2-Test bench, 3-Cylinder, 31-Connecting rod, 32-Push block, 4-Load assembly, 41-Fixed pulley, 42-Traction rope, 43-Weight, 44-Pulley bracket, 5-Slider, 51-Slider guide rail, 6-Temperature control box. Detailed Implementation

[0020] It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention.

[0021] like Figure 1 As shown, a push rod actuator holding force and life testing device includes a push rod actuator 1, a test bench 2, a cylinder 3, a load assembly 4, and a slider 5. The push rod actuator 1 is mounted on the test bench 2, the slider 5 is mounted on the actuating end of the push rod actuator 1, the load assembly 4 is connected to the slider 5, and the cylinder 3 and the actuating end of the push rod actuator 1 can act on the slider 5.

[0022] like Figure 1 and Figure 2 As shown, the load assembly 4 includes a fixed pulley 41, a traction rope 42, and a weight 43. One end of the traction rope 42 is connected to the slider 5, and the other end passes around the fixed pulley 41 and is connected to the weight. The fixed pulley 41 is installed via a pulley bracket 44, which is located at the rear end of the push rod actuator 1.

[0023] It also includes a slider guide rail 51, on which the slider 5 is slidably disposed.

[0024] In addition, it also includes a temperature control box 6, in which the load assembly 4, test bench 2, push rod actuator 1 and slider 5 are located.

[0025] Specifically, the cylinder 3 is located on the side of the temperature control box 6. The cylinder 3 contacts the slider 5 through a set of connecting rods 31 that pass through the side wall of the temperature control box 6. A push block 32 is provided at the end of the connecting rods 31.

[0026] like Figure 3 As shown, the push rod actuator 1 includes a push rod 11 and a drive motor 12. The push rod 11 has a toothed surface, and the output shaft of the drive motor 12 has a gear. The toothed surface on the push rod 11 meshes with the gear.

[0027] In this embodiment, a push rod actuator holding force and life testing device is used as follows: the push rod actuator 1 is placed on the test bench 2 and fixed. The push rod 11 can push the slider 5 forward. Next to the push rod actuator 1 is a cylinder 3, which can push the slider 5 to slide along the slider guide rail 51. The slider 5 has a traction rope 42 connected to a fixed pulley 41, and a weight 43 on the other side.

[0028] During operation, if a force of 120N is required to be applied to the push rod 11, a 120N weight is placed at the end of the weight 43. The sum of the forces of the push rod 11 and the cylinder 3 equals the force at the weight end. The push rod 11 and the cylinder 3 will push the slider forward. When the push rod 11 stops, the cylinder 3 retracts, causing the weight 43 to descend and pull the slider 5 backward. At this point, the weight 43's gravity is applied to the push rod 11, thus testing the holding force of the push rod 11. Different holding forces can be tested by changing the forces of the cylinder 3 and the weight 43.

[0029] This device can also be used to test the lifespan of the push rod actuator 1. Similarly, when the force applied to the push rod 11 and cylinder 3 is equal to the weight of the weight 43, and the push rod 11 and cylinder 3 run together, after the push rod 11 reaches its limit stroke, the force of cylinder 3 increases (the applied force is equal to the push force of the push rod). At this time, the push rod 11 can be retracted, and then cylinder 3 also retracts. By repeating this process, the lifespan of the push rod actuator 1 can be tested.

[0030] In summary, this invention allows for the instantaneous application of load force to the push rod when testing its holding force; it also enables simple and rapid lifespan testing.

[0031] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements can be made without departing from the principle of the present utility model, and these improvements should also be considered within the protection scope of the present utility model.

Claims

1. A push rod actuator retention force and life test apparatus, characterized by, Including push rod executor (1), test bench (2), cylinder (3), load assembly (4) and slider (5), the push rod executor (1) is arranged on the test bench (2), the slider (5) is arranged on the execution end of the push rod executor (1), the load assembly (4) is connected with the slider (5), the cylinder (3) and the execution end of the push rod executor (1) can act on the slider (5).

2. A push rod actuator retention force and life test apparatus according to claim 1, wherein, The load assembly (4) includes a fixed pulley (41), a traction rope (42) and a weight (43), one end of the traction rope (42) is connected with the slider (5), the other end is connected with the weight by passing through the fixed pulley (41).

3. A push rod actuator retention force and life test apparatus according to claim 2, wherein, The fixed pulley (41) is installed by a pulley support (44), and the pulley support (44) is arranged at the rear end of the push rod executor (1).

4. A push rod actuator retention force and life test apparatus according to claim 1, wherein, It also includes a slider guide rail (51), and the slider (5) is slidably arranged on the slider guide rail (51).

5. A push rod actuator retention force and life test apparatus according to claim 1, wherein, It also includes a temperature control box (6), and the load assembly (4), the test bench (2), the push rod executor (1) and the slider (5) are arranged in the temperature control box (6).

6. A push rod actuator retention force and life test apparatus according to claim 5, wherein, The cylinder (3) is arranged on the side of the temperature control box (6), the cylinder (3) is in contact with the slider (5) through a group of connecting rods (31) penetrating through the side wall of the temperature control box (6), and the end of the connecting rod (31) is provided with a push block (32).

7. A push rod actuator retention force and life test apparatus according to claim 1, wherein, The push rod executor (1) includes a push rod (11) and a driving motor (12), the push rod (11) is provided with a tooth surface, the output shaft of the driving motor (12) is provided with a gear, and the tooth surface on the push rod (11) is engaged with the gear.

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