Dynamic load testing device
By introducing protective components and a gear transmission system into the dynamic load testing device, the problem of debris splashing during the test was solved, improving safety and accuracy, and ensuring the stability and observability of the testing process.
Patent Information
- Application Number
- CN202423298512.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Traditional dynamic load testing devices lack protective structures during testing, which may cause the test object to break or shatter, resulting in flying fragments and posing a safety hazard, reducing safety and testing accuracy during use.
The system employs protective components, including a transparent protective cover and a gear transmission system. The driven gear is rotated by a motor, which in turn drives the lead screw to rotate, moving the transparent protective cover to shield the test area and create a closed environment. Limiting posts and guide wheels ensure the stability and uniformity of the extrusion plate.
It effectively avoids debris splashing, improves the safety and accuracy of testing, ensures the safety of operators, and enables real-time observation of the testing process.
Smart Images
Figure CN223796344U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of load testing technology, and in particular to a dynamic load testing device. Background Technology
[0002] Dynamic load testing is a testing method used to evaluate the performance and reliability of materials, structures, or systems under dynamic loads. In the engineering field, dynamic load testing is widely used in various engineering projects such as buildings, bridges, aircraft, and automobiles.
[0003] Traditional dynamic load testing devices apply loads to the test object through hydraulic rods or similar driving devices and record test data through pressure sensors. However, most dynamic load testing devices lack protective structures. During the test, when the test object is subjected to a large load, it may crack or shatter, causing fragments to fly, posing a safety hazard to operators and the surrounding environment, and reducing the safety during use. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a dynamic load testing device.
[0005] This utility model is achieved using the following technical solution: a dynamic load testing device, including a fixed base plate, a mounting frame fixedly connected to the top of the fixed base plate, a protective component provided on the top of the fixed base plate, a limit post fixedly connected to the top of the fixed base plate, a hydraulic rod fixedly connected to the top of the inner wall of the mounting frame, a pressing plate fixedly connected to the output end of the hydraulic rod, a pressure sensor fixedly connected to the inner wall of the fixed base plate, and a placement plate fixedly connected to the top of the pressure sensor;
[0006] The protective assembly includes a transparent protective cover, a fixing block fixedly connected to the rear end of the transparent protective cover, a sleeve fixedly connected to the inner wall of the fixing block, a threaded seat fixedly connected to the bottom of the sleeve, a lead screw threadedly connected to the inner wall of the threaded seat, a driving gear fixedly connected to the surface of the lead screw, a driven gear meshing with the inner wall of the driving gear, a motor fixedly connected to the bottom of the driven gear, and extension plates fixedly connected to both ends of the transparent protective cover.
[0007] The above technical solution uses a motor to drive the driven gear to rotate, which in turn drives the lead screw to rotate, causing the threaded seat to move downwards. This, in turn, moves the sleeve and the fixing block, causing the transparent protective cover to move downwards to shield the test area, forming a closed test environment. This avoids dangerous situations such as objects being squeezed and damaged during the test, resulting in flying fragments, and improves safety during use.
[0008] As a further improvement to the above solution, the mounting bracket is located inside the transparent protective cover, and the bottom of the lead screw is rotatably connected to the inner wall of the fixed base plate.
[0009] The above technical solution allows staff to observe the testing process in real time through a transparent protective shield, ensuring the smooth conduct of the test.
[0010] As a further improvement to the above solution, the bottom of the motor is fixedly connected to the top of the fixed base plate, and the inner wall of the extension plate is slidably connected to the surface of the limiting post.
[0011] The above technical solution uses limiting posts to limit the extension plate, ensuring the stability of the transparent protective cover during movement.
[0012] As a further improvement to the above solution, two limiting posts are provided, and the two limiting posts are symmetrically distributed with the fixed base plate as the center.
[0013] The above technical solution improves the limiting effect on the transparent protective cover by using two limiting posts.
[0014] As a further improvement to the above solution, the inner wall of the mounting bracket is provided with a limiting groove, and guide plates are fixedly connected to both ends of the extrusion plate.
[0015] As a further improvement to the above solution, a guide wheel is rotatably connected to the inner wall of the guide plate, and the surface of the guide wheel is slidably connected to the inner wall of the limiting groove.
[0016] With the above technical solution, when the extrusion plate moves downward, the guide wheel will slide on the inner wall of the limiting groove, avoiding the phenomenon of tilting when the extrusion plate moves, and ensuring the uniformity of pressure application.
[0017] As a further improvement to the above solution, a support frame is fixedly connected to the top of the fixed base plate.
[0018] The above technical solution uses a support frame to support the lead screw, ensuring its stability during use, and also limits the threaded seat to prevent it from contacting the driven gear when it moves downward.
[0019] As a further improvement to the above solution, the inner wall of the support frame is rotatably connected to the surface of the lead screw, and the support frame is located at the upper end of the drive gear.
[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0021] This invention features a protective component. Specifically, a motor drives a driven gear to rotate, which in turn drives a lead screw to rotate. This causes the threaded seat to move downwards, which in turn moves the sleeve and the fixing block. As a result, the transparent protective cover moves downwards to shield the test area, creating a closed test environment. This prevents objects from being crushed and damaged during the test, thus avoiding dangerous situations such as flying fragments and improving safety during use.
[0022] This invention features guide wheels at both ends of the extrusion plate. Specifically, when the extrusion plate moves downward, the guide wheels slide on the inner wall of the limiting groove, preventing the extrusion plate from tilting during movement. This ensures uniform pressure application and improves test accuracy. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0024] Figure 2 This is a schematic cross-sectional view of the present invention.
[0025] Figure 3 This is a side view of the structure of this utility model;
[0026] Figure 4 This is a schematic diagram of the protective component structure of this utility model;
[0027] Figure 5 This is a schematic diagram of the mounting bracket structure of this utility model;
[0028] Figure 6 This is a schematic diagram of the extrusion plate structure of this utility model.
[0029] Explanation of key symbols:
[0030] 1. Fixed base plate; 2. Mounting bracket; 3. Protective components; 301. Transparent protective cover; 302. Fixing block; 303. Sleeve; 304. Threaded seat; 305. Lead screw; 306. Drive gear; 307. Driven gear; 308. Motor; 309. Extension plate; 4. Limiting post; 5. Hydraulic rod; 6. Extrusion plate; 7. Pressure sensor; 8. Placement plate; 9. Limiting groove; 10. Guide plate; 11. Guide wheel; 12. Support frame. Detailed Implementation
[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0032] Example:
[0033] Please combine Figures 1-6A dynamic load testing device according to this embodiment includes a fixed base plate 1, a mounting frame 2 fixedly connected to the top of the fixed base plate 1, a protective component 3 provided on the top of the fixed base plate 1, a limit post 4 fixedly connected to the top of the fixed base plate 1, a hydraulic rod 5 fixedly connected to the top of the inner wall of the mounting frame 2, a compression plate 6 fixedly connected to the output end of the hydraulic rod 5, a pressure sensor 7 fixedly connected to the inner wall of the fixed base plate 1, and a placement plate 8 fixedly connected to the top of the pressure sensor 7.
[0034] The protective component 3 includes a transparent protective cover 301. A fixing block 302 is fixedly connected to the rear end of the transparent protective cover 301. A sleeve 303 is fixedly connected to the inner wall of the fixing block 302. A threaded seat 304 is fixedly connected to the bottom of the sleeve 303. A lead screw 305 is threadedly connected to the inner wall of the threaded seat 304. A drive gear 306 is fixedly connected to the surface of the lead screw 305. A driven gear 307 meshes with the inner wall of the drive gear 306. A motor 308 is fixedly connected to the bottom of the driven gear 307. Extension plates 309 are fixedly connected to both ends of the transparent protective cover 301. When the motor 308 is started, the motor 308 drives the driven gear 309. Gear 307 rotates, causing drive gear 306 to rotate, which in turn drives lead screw 305 to rotate, causing threaded seat 304 to move downwards. This moves sleeve 303 and fixing block 302, causing transparent protective cover 301 to move downwards to shield the test area, forming a closed test environment. This avoids dangerous situations such as fragments flying due to crushing damage to the object during the test, thus improving safety during use. Hydraulic rod 5 pushes extrusion plate 6 downwards, applying load to the object. Pressure sensor 7 captures the applied pressure and converts it into an electrical signal for processing.
[0035] The mounting bracket 2 is located inside the transparent protective cover 301. The bottom of the lead screw 305 is rotatably connected to the inner wall of the fixed base plate 1. The transparent protective cover 301 allows the staff to observe the testing process.
[0036] The bottom of the motor 308 is fixedly connected to the top of the fixed base plate 1, and the inner wall of the extension plate 309 is slidably connected to the surface of the limiting post 4.
[0037] There are two limit posts 4, which are symmetrically distributed with the fixed base plate 1 as the center.
[0038] The inner wall of the mounting bracket 2 is provided with a limiting groove 9, and the two ends of the extrusion plate 6 are fixedly connected with guide plates 10.
[0039] The inner wall of the guide plate 10 is rotatably connected to the guide wheel 11. The surface of the guide wheel 11 is slidably connected to the inner wall of the limiting groove 9. When the extrusion plate 6 moves downward, the guide wheel 11 will slide on the inner wall of the limiting groove 9 to avoid the phenomenon of tilting when the extrusion plate 6 moves, thus ensuring the uniformity of pressure application and improving the accuracy of the test.
[0040] A support frame 12 is fixedly connected to the top of the fixed base plate 1.
[0041] The inner wall of the support frame 12 is rotatably connected to the surface of the lead screw 305, and the support frame 12 is located at the upper end of the drive gear 306.
[0042] The implementation principle of the dynamic load testing device in this embodiment is as follows: During use, the object to be tested is placed on the placement plate 8. Then, the motor 308 is started, driving the driven gear 307 to rotate, causing the driving gear 306 to rotate, which in turn drives the lead screw 305 to rotate, causing the threaded seat 304 to move downwards. This moves the sleeve 303 and the fixing block 302, causing the transparent protective cover 301 to move downwards to shield the testing area, forming a closed testing environment. This avoids dangerous situations such as fragments flying due to the object being squeezed and damaged during the test, improving safety during use. The transparent protective cover 301 allows the operator to observe the testing process. Then, the hydraulic rod 5 is started, pushing the extrusion plate 6 downwards. The extrusion plate 6 applies a load to the object. The pressure sensor 7 captures the applied pressure and converts it into an electrical signal for processing. When the extrusion plate 6 moves downwards, the guide wheel 10 slides on the inner wall of the limiting groove 9, preventing the extrusion plate 6 from tilting during movement, ensuring the uniformity of pressure application, and improving the accuracy of the test.
[0043] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. A dynamic load testing device, characterized in that, Includes a fixed base plate (1), a mounting bracket (2) fixedly connected to the top of the fixed base plate (1), a protective component (3) provided on the top of the fixed base plate (1), a limit post (4) fixedly connected to the top of the fixed base plate (1), a hydraulic rod (5) fixedly connected to the top of the inner wall of the mounting bracket (2), a pressing plate (6) fixedly connected to the output end of the hydraulic rod (5), a pressure sensor (7) fixedly connected to the inner wall of the fixed base plate (1), and a placement plate (8) fixedly connected to the top of the pressure sensor (7). The protective component (3) includes a transparent protective cover (301), a fixing block (302) is fixedly connected to the rear end of the transparent protective cover (301), a sleeve (303) is fixedly connected to the inner wall of the fixing block (302), a threaded seat (304) is fixedly connected to the bottom of the sleeve (303), a lead screw (305) is threadedly connected to the inner wall of the threaded seat (304), a drive gear (306) is fixedly connected to the surface of the lead screw (305), a driven gear (307) meshes with the inner wall of the drive gear (306), a motor (308) is fixedly connected to the bottom of the driven gear (307), and extension plates (309) are fixedly connected to both ends of the transparent protective cover (301).
2. The dynamic load testing device as described in claim 1, characterized in that: The mounting bracket (2) is located inside the transparent protective cover (301), and the bottom of the lead screw (305) is rotatably connected to the inner wall of the fixed base plate (1).
3. The dynamic load testing device as described in claim 1, characterized in that: The bottom of the motor (308) is fixedly connected to the top of the fixed base plate (1), and the inner wall of the extension plate (309) is slidably connected to the surface of the limiting post (4).
4. The dynamic load testing device as described in claim 1, characterized in that: The number of the limiting posts (4) is set to two, and the two limiting posts (4) are symmetrically distributed with the fixed base plate (1) as the center.
5. The dynamic load testing device as described in claim 1, characterized in that: The inner wall of the mounting bracket (2) is provided with a limiting groove (9), and the two ends of the extrusion plate (6) are fixedly connected with guide plates (10).
6. The dynamic load testing device as described in claim 5, characterized in that: The inner wall of the guide plate (10) is rotatably connected to a guide wheel (11), and the surface of the guide wheel (11) is slidably connected to the inner wall of the limiting groove (9).
7. The dynamic load testing device as described in claim 4, characterized in that: A support frame (12) is fixedly connected to the top of the fixed base plate (1).
8. The dynamic load testing device as described in claim 7, characterized in that: The inner wall of the support frame (12) is rotatably connected to the surface of the lead screw (305), and the support frame (12) is located at the upper end of the drive gear (306).