Full-condition simulation hydraulic damper multi-direction loading force comprehensive test device

Abstract

This utility model discloses a comprehensive testing device for multi-directional loading force of hydraulic dampers under full-condition simulation, relating to the field of hydraulic damper testing technology. It includes a vibration platform, with a test bench fixedly connected to the top vibration surface of the platform. A positioning component is provided at the top of the test bench. A support is fixedly connected to the outer side of the vibration platform, with a top plate fixedly connected to the top of the support. A pressurizing component is provided on the bottom side of the top plate, and a movable plate is slidably connected to the outer side of the support. This utility model, through the pressurizing component, can apply a sudden increase in pressure to the hydraulic damper using the free-fall motion of a weight, simulating the working conditions of the hydraulic damper in actual use environments. By adjusting the fall height of the movable plate and the weight of the counterweight, the test pressure can be adjusted, allowing for convenient adjustment of the pressure magnitude. Combined with the vibration platform, it can drive the fixed hydraulic damper to vibrate, simulating a vibration environment.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic damper testing technology, specifically a comprehensive testing device for multi-directional loading force of hydraulic dampers that simulates all working conditions. Background Technology

[0002] A hydraulic damper is a vibration control device that is highly responsive to speed. It is a hydraulic feed speed control device that allows the cylinder feed speed to be freely adjusted from low speed to high speed within a desired range. Common hydraulic dampers include spring-return and air-return types. They are mainly used for vibration control of pipelines and equipment in nuclear power plants, thermal power plants, chemical plants, and steel plants, and are used to control impact fluid vibrations. After the hydraulic damper is designed and manufactured, its performance needs to be tested to verify whether it can meet the design requirements.

[0003] Existing hydraulic dampers are tested by applying pressure to the damper using a hydraulic press, compressing it. However, the press can only apply a continuous constant force, while in actual use, the damper experiences instantaneous external forces. Traditional testing methods using hydraulic presses cannot simulate the external forces applied to the damper under real-world conditions, leading to inaccurate test results. Furthermore, traditional testing is conducted under relatively stable conditions, which are subject to various vibrations during actual use. This method also fails to effectively measure the damper's stable and reliable operation under various vibration environments. Therefore, we propose a comprehensive multi-directional loading force testing device for hydraulic dampers that simulates all operating conditions to address the shortcomings of existing methods. Utility Model Content

[0004] Technical problems to be solved

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a comprehensive testing device for multi-directional loading force of hydraulic dampers that simulates all working conditions. It can apply instantaneously increased pressure to the hydraulic damper by utilizing the free fall motion of a heavy object, which can simulate the working conditions of the hydraulic damper in the actual use environment and can also simulate vibration environment, thereby improving the accuracy of data and facilitating user operation.

[0006] Technical solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a comprehensive testing device for multi-directional loading force of a hydraulic damper simulating all working conditions, comprising a vibration platform, a test bench fixedly connected to the top vibration surface of the vibration platform, a positioning component provided at the top of the test bench, a support fixedly connected to the outer side of the vibration platform, a top plate fixedly connected to the top of the support, a pressurizing component provided at the bottom side of the top plate, a movable plate slidably connected to the outer side of the support, a counterweight fixedly connected to the top of the movable plate, a titanium alloy impact plate fixedly connected to the bottom of the movable plate, and rollers rotatably connected to the inner wall of the movable plate, with the outer side of the rollers fitting against the support.

[0008] The present invention is further configured such that the positioning component includes a fixed plate and a limiting groove, the bottom end of the fixed plate is fixedly connected to the top end of the test platform, and the limiting groove is of several kinds, with the limiting groove being formed at the top end of the fixed plate.

[0009] The present invention is further configured such that the positioning component includes a rotating disk, a sliding groove, a slider, and a positioning block. The outer side of the rotating disk is rotatably connected to the inside of the fixed disk. There are several sliding grooves, which are opened at the top of the rotating disk. The bottom end of the slider is slidably connected to the inside of the sliding groove, and the two sides of the slider are slidably connected to the inner walls of the two sides of the limiting groove. The bottom end of the positioning block is fixedly connected to the top end of the slider.

[0010] The present invention is further configured such that the positioning component includes a groove, a connecting plate and a cylinder, the groove is formed on the outer side of the fixed plate, one end of the connecting plate is fixedly connected to the outer side of the rotating plate, one end of the cylinder is movably connected to the top of the test platform, and the output shaft of the cylinder is movably connected to the other end of the connecting plate.

[0011] The present invention is further configured such that the pressurizing assembly includes a winding drum, a steel wire rope, and an annular rack. One end of the winding drum is rotatably connected to the bottom end of the top plate. The steel wire rope is wound around the outside of the winding drum. One end of the steel wire rope is fixedly connected to the outside of the winding drum. The other end of the steel wire rope is fixedly connected to the top end of the movable plate. The inner wall of the annular rack is fixedly connected to the outside of the winding drum.

[0012] The present invention is further configured such that the pressurizing component includes a protrusion and a pressing cylinder, the bottom end of the protrusion being fixedly connected to the top end of the top plate, and the bottom end of the pressing cylinder being fixedly connected to the top end of the protrusion.

[0013] The present invention is further configured such that the pressurizing assembly includes a housing, a drive motor, and a gear, the outer side of the housing is fixedly connected to the output shaft of the lower cylinder, the outer side of the drive motor is fixedly connected to the inner wall of the housing, and the outer side of the gear is fixedly connected to the output shaft of the drive motor.

[0014] Beneficial effects:

[0015] I. This utility model, through the setting of the pressurization component, can apply an instantaneous increase in pressure to the hydraulic damper by utilizing the free fall motion of the heavy object, thus simulating the working conditions of the hydraulic damper in the actual use environment.

[0016] II. This utility model allows for adjustment of the test pressure by adjusting the drop height of the movable plate and the weight of the counterweight, thus enabling convenient adjustment of the pressure magnitude.

[0017] Third, this utility model can stably clamp and fix hydraulic dampers of different models through the positioning components. When used with a vibration platform, it can drive the fixed hydraulic damper to vibrate, which can simulate the vibration environment and improve the accuracy of the data.

[0018] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the experimental device of this utility model;

[0020] Figure 2 This is a side view sectional structural diagram of the test device of this utility model;

[0021] Figure 3 A schematic diagram of the pressurization component of the test device of this utility model;

[0022] Figure 4 This is a schematic diagram of the positioning component structure of the test device of this utility model;

[0023] Figure 5 This is a schematic diagram of the internal structure of the positioning component of the test device of this utility model.

[0024] In the diagram: 1. Vibration platform; 2. Test bench; 3. Positioning assembly; 301. Fixed plate; 302. Limiting groove; 303. Rotating plate; 304. Slide groove; 305. Slider; 306. Positioning block; 307. Groove; 308. Connecting plate; 309. Cylinder; 4. Bracket; 5. Top plate; 6. Pressurizing assembly; 601. Winding drum; 602. Steel wire rope; 603. Ring rack; 604. Protrusion; 605. Downward cylinder; 606. Housing; 607. Drive motor; 608. Gear; 7. Movable plate; 8. Counterweight; 9. Titanium alloy impact plate; 10. Roller. Detailed Implementation

[0025] 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 protection scope of the present utility model.

[0026] like Figure 1-5 As shown, this utility model provides a technical solution: a comprehensive test device for multi-directional loading force of hydraulic damper under full working conditions simulation, including a vibration platform 1, a test bench 2 fixedly connected to the top vibration surface of the vibration platform 1, a positioning component 3 set at the top of the test bench 2, a support 4 fixedly connected to the outside of the vibration platform 1, a top plate 5 fixedly connected to the top of the support 4, a pressurizing component 6 set at the bottom side of the top plate 5, a movable plate 7 slidably connected to the outside of the support 4, a counterweight 8 fixedly connected to the top of the movable plate 7, a titanium alloy impact plate 9 fixedly connected to the bottom of the movable plate 7, and a roller 10 rotatably connected to the inner wall of the movable plate 7, with the outer side of the roller 10 in contact with the support 4;

[0027] The hydraulic damper to be tested is fixed by the positioning component 3, which can stably clamp and fix different models of hydraulic dampers. Through the set pressurization component 6, the pressure of the hydraulic damper can be increased instantaneously by the free fall motion of the weight, which can simulate the working condition of the hydraulic damper in the actual use environment. In conjunction with the vibration platform 1, the fixed hydraulic damper can be driven to vibrate, which can simulate the vibration environment and improve the accuracy of the data.

[0028] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the positioning assembly 3 includes a fixed plate 301, a limiting groove 302, a rotating plate 303, a sliding groove 304, a slider 305, a positioning block 306, a groove 307, a connecting plate 308, and a cylinder 309. The bottom end of the fixed plate 301 is fixedly connected to the top end of the test bench 2. Several limiting grooves 302 are provided at the top end of the fixed plate 301. The outer side of the rotating plate 303 is rotatably connected to the inside of the fixed plate 301. Several sliding grooves 304 are provided at the top end of the rotating plate 303. The top of the disk 303 and the bottom of the slider 305 are slidably connected to the inside of the slide groove 304, and the two sides of the slider 305 are slidably connected to the inner walls of the two sides of the limiting groove 302. The bottom of the positioning block 306 is fixedly connected to the top of the slider 305. The groove 307 is opened on the outside of the fixed disk 301. One end of the connecting plate 308 is fixedly connected to the outside of the rotating disk 303. One end of the cylinder 309 is movably connected to the top of the test bench 2. The output shaft of the cylinder 309 is movably connected to the other end of the connecting plate 308.

[0029] By starting the cylinder 309, the connecting plate 308 is moved, which in turn drives the rotating disk 303 to rotate, causing the bottom end of the slider 305 to slide inside the slide groove 304. With the guiding effect of the limiting groove 302, multiple sliders 305 can be driven to gather together at the same time, which can clamp and fix the hydraulic damper. Different models of hydraulic dampers can be clamped and fixed stably.

[0030] like Figure 1 , Figure 2 and Figure 3 As shown, the pressurizing assembly 6 includes a winding drum 601, a wire rope 602, an annular rack 603, a protrusion 604, a pressing cylinder 605, a housing 606, a drive motor 607, and a gear 608. One end of the winding drum 601 is rotatably connected to the bottom end of the top plate 5. The wire rope 602 is wound around the outside of the winding drum 601. One end of the wire rope 602 is fixedly connected to the outside of the winding drum 601, and the other end of the wire rope 602 is fixedly connected to the top end of the movable plate 7. The inner wall of the annular rack 603 is fixedly connected to the outside of the winding drum 601. The bottom end of the protrusion 604 is fixedly connected to the top end of the top plate 5. The bottom end of the pressing cylinder 605 is fixedly connected to the top end of the protrusion 604. The outer side of the housing 606 is fixedly connected to the output shaft of the pressing cylinder 605. The outer side of the drive motor 607 is fixedly connected to the inner wall of the housing 606. The outer side of the gear 608 is fixedly connected to the output shaft of the drive motor 607.

[0031] By activating the lowering cylinder 605, the housing 606, drive motor 607, and gear 608 are pushed downwards, causing gear 608 to mesh with the ring rack 603. At this time, the drive motor 607 is activated to drive gear 608 to rotate, which in turn drives the winding drum 601 to rotate, winding and storing the wire rope 602. During the storage process, the wire rope 602 will pull the movable plate 7 upwards. When it moves to a suitable height, the gear 608 is driven to move upwards, which releases the restriction on the winding drum 601. Then, under the gravity of the movable plate 7, it undergoes free fall, applying a sudden increase in pressure to the hydraulic damper.

[0032] Working principle: In use, the hydraulic damper to be tested is placed vertically in the fixed plate 301 with the movable end facing upwards. Then, the starting cylinder 309 is turned, pushing the connecting plate 308 to move, which in turn drives the rotating plate 303 to rotate. This causes the bottom end of the slider 305 to slide inside the sliding groove 304. With the guiding action of the limiting groove 302, multiple sliders 305 can be driven to gather together simultaneously, ultimately making the positioning block 306 fit against the surface of the hydraulic damper, fixing the hydraulic damper. Then, the lowering cylinder 605 is started, pushing the housing 606 downwards, which in turn drives the drive motor 607 and gear 608 downwards. This causes the bottom of the gear 608 to mesh with the outer side of the ring rack 603. At this time, the drive motor 607 is started, driving the gear 608 to rotate, causing the gear 608 to roll on the surface of the ring rack 603, driving the winding drum 601 to rotate, thus winding the wire rope. The 602 winding and storage mechanism pulls the movable plate 7 upwards during the storage process. When it reaches a suitable height, the lowering cylinder 605 is activated, causing the housing 606, drive motor 607, and gear 608 to move upwards. This increases the distance between the gear 608 and the ring rack 603, disengaging them and releasing the restriction on the winding drum 601. Subsequently, under the gravity of the movable plate 7, the counterweight 8 and titanium alloy impact plate 9 undergo free fall. When the titanium alloy impact plate 9 contacts the top of the fixed hydraulic damper, a large pressure is applied instantaneously, simulating the actual working condition of the hydraulic damper and achieving the testing effect. The test pressure can be adjusted by changing the fall height of the movable plate 7 and the weight of the counterweight 8. The vibration platform 1 can be activated to vibrate the fixed hydraulic damper, simulating the vibration environment and improving the accuracy of the data.

[0033] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0034] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A comprehensive test device for multi-directional loading force of a hydraulic damper simulating all working conditions, comprising a vibration platform (1), characterized in that: The vibration platform (1) is fixedly connected to a test bench (2) at the top vibration surface. The test bench (2) is provided with a positioning component (3) at the top. The vibration platform (1) is fixedly connected to a support (4) at the outside. The support (4) is fixedly connected to a top plate (5) at the top. The top plate (5) is provided with a pressure component (6) at the bottom. The support (4) is slidably connected to a movable plate (7). The movable plate (7) is fixedly connected to a counterweight (8) at the top. The movable plate (7) is fixedly connected to a titanium alloy impact plate (9) at the bottom. The movable plate (7) is rotatably connected to a roller (10) on the inner wall. The outer side of the roller (10) is in contact with the support (4).

2. The comprehensive testing device for multi-directional loading force of a hydraulic damper simulating all working conditions as described in claim 1, characterized in that: The positioning component (3) includes a fixed plate (301) and a limiting groove (302). The bottom end of the fixed plate (301) is fixedly connected to the top end of the test bench (2). There are several limiting grooves (302), and the limiting grooves (302) are opened at the top end of the fixed plate (301).

3. The comprehensive testing device for multi-directional loading force of a hydraulic damper simulating all working conditions as described in claim 2, characterized in that: The positioning component (3) further includes a rotating disk (303), a sliding groove (304), a slider (305), and a positioning block (306). The outer side of the rotating disk (303) is rotatably connected to the inside of the fixed disk (301). There are several sliding grooves (304). The sliding grooves (304) are opened at the top of the rotating disk (303). The bottom end of the slider (305) is slidably connected to the inside of the sliding groove (304), and the two sides of the slider (305) are slidably connected to the inner walls of the two sides of the limiting groove (302). The bottom end of the positioning block (306) is fixedly connected to the top of the slider (305).

4. The comprehensive testing device for multi-directional loading force of a hydraulic damper simulating all working conditions according to claim 3, characterized in that: The positioning component (3) also includes a groove (307), a connecting plate (308), and a cylinder (309). The groove (307) is located on the outside of the fixed plate (301). One end of the connecting plate (308) is fixedly connected to the outside of the rotating plate (303). One end of the cylinder (309) is movably connected to the top of the test bench (2). The output shaft of the cylinder (309) is movably connected to the other end of the connecting plate (308).

5. The comprehensive testing device for multi-directional loading force of a hydraulic damper simulating all working conditions according to claim 4, characterized in that: The pressurizing assembly (6) includes a winding drum (601), a wire rope (602), and an annular rack (603). One end of the winding drum (601) is rotatably connected to the bottom end of the top plate (5). The wire rope (602) is wound around the outside of the winding drum (601). One end of the wire rope (602) is fixedly connected to the outside of the winding drum (601), and the other end of the wire rope (602) is fixedly connected to the top end of the movable plate (7). The inner wall of the annular rack (603) is fixedly connected to the outside of the winding drum (601).

6. The comprehensive testing device for multi-directional loading force of a hydraulic damper simulating all working conditions as described in claim 5, characterized in that: The pressurizing assembly (6) also includes a protrusion (604) and a pressing cylinder (605). The bottom end of the protrusion (604) is fixedly connected to the top end of the top plate (5), and the bottom end of the pressing cylinder (605) is fixedly connected to the top end of the protrusion (604).

7. The comprehensive testing device for multi-directional loading force of a hydraulic damper simulating all working conditions as described in claim 6, characterized in that: The pressurizing assembly (6) also includes a housing (606), a drive motor (607), and a gear (608). The outer side of the housing (606) is fixedly connected to the output shaft of the lower cylinder (605), the outer side of the drive motor (607) is fixedly connected to the inner wall of the housing (606), and the outer side of the gear (608) is fixedly connected to the output shaft of the drive motor (607).

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