Bailey beam structure bearing test device
By designing a Bailey beam structure load-bearing test device, and using hydraulic cylinders and roller guide rods to adjust the position of the Bailey beam, the problem of inflexible support structure in traditional testing was solved, thus achieving flexibility and accuracy in Bailey beam load-bearing testing.
Patent Information
- Application Number
- CN202423229220.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-26
AI Technical Summary
Traditional Bailey beam load-bearing tests lack flexible support structures, making it difficult to adjust support spacing and splicing nodes, resulting in insufficient test flexibility.
A load-bearing capacity testing device for Bailey beam structures was designed, including a test bench, a hydraulic cylinder, a balance support, a pressure detector, and an adjustable load-bearing frame. The Bailey frame is pushed up by the hydraulic cylinder and its position is adjusted using rollers and guide rods. The load-bearing capacity is displayed by the pressure detector.
It improves the adjustment flexibility and accuracy of Bailey beam testing, enabling flexible adjustment of support spacing and splicing nodes to ensure the accuracy and flexibility of test results.
Smart Images
Figure CN223538530U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of construction material safety testing technology, and in particular to a Bailey beam structure load-bearing testing device. Background Technology
[0002] Bailey beam structural load-bearing capacity testing is an assessment of the load-bearing capacity of Bailey beam structures. During the test, actual or anticipated load conditions are simulated, and specialized equipment is used to measure parameters such as deformation and stress distribution of the Bailey beam under load. This assesses its load-bearing capacity and safety. The test typically includes material testing, dimensional measurement, mechanical property testing, and connection performance testing to ensure that the Bailey beams can be used normally in various environments, providing crucial information for the design and construction of engineering projects. Since Bailey beams are assembled from Bailey frames, the stability of the connections between adjacent Bailey frames directly affects the load-bearing strength of the Bailey beam.
[0003] In the traditional Bailey bridge load-bearing test, pressure is applied to the Bailey bridge frame using a press. However, the Bailey bridge frame lacks a flexible support structure during the load-bearing strength test. It is not convenient to adjust the support spacing of the Bailey bridge frame, move the Bailey bridge frame in the load-bearing test device, or conduct compressive tests on the splicing nodes of the Bailey bridge frame. As a result, the load-bearing test process of the Bailey bridge frame is not flexible enough. Summary of the Invention
[0004] This disclosure relates to a Bailey beam structure load-bearing testing device to solve the problem that in the traditional Bailey beam load-bearing test process, pressure is applied to the Bailey frame using a press. However, the Bailey frame lacks a flexible support structure during the load-bearing strength test, making it inconvenient to adjust the support spacing of the Bailey frame, move the Bailey frame within the load-bearing testing device, and conduct compressive strength tests on the splicing nodes of the Bailey frame, resulting in an inflexible load-bearing test process for the Bailey frame.
[0005] In a first aspect, this disclosure provides a Bailey beam structure load-bearing testing device, specifically comprising: a test platform, a base mounted on a support below the test platform, a hydraulic cylinder fixedly connected to the center of the upper surface of the base, two movable stop bars mounted on the test platform, the test platform being parallel to the base, the top rod of the hydraulic cylinder being perpendicular to the upper surface of the test platform, a balance support fixedly connected to the upper end of the hydraulic cylinder, the balance support being parallel to the lower surface of the test platform, a pressure detector fixedly connected to the center of the upper surface of the balance support, the pressure detector being connected to a pressure display panel via an electrical connection wire, the pressure display panel being fixedly connected to the front of the test platform by screws, a test top rod fixedly connected above the pressure detector, the test top rod movably penetrating through the test platform, an adjustable load-bearing frame movably connected above the test platform, the adjustable load-bearing frame being located below the movable stop bars, two limit adjustment grooves respectively opened on the front and rear walls of the test platform, and a stop bar slider fixedly connected to each end of the movable stop bar, the stop bar slider slidably connecting to the limit adjustment groove.
[0006] In at least some embodiments, a first guide hole with four circular holes is longitudinally provided on the test platform, and a second guide hole is vertically provided at the center of the test platform, with a movable stop bar slidably connected inside the second guide hole.
[0007] In at least some embodiments, the balancing support has an "H" shaped structure, and a support guide hole is opened through each of the four end plates of the balancing support. Four support tension springs are fixedly connected to the lower surface of the balancing support, and the support tension springs are located below the support guide holes.
[0008] In at least some embodiments, the adjusting support frame is a rectangular frame, and six support rollers are rotatably connected inside the adjusting support frame via bearings. Four support guide rods are vertically welded to the lower surface of the adjusting support frame.
[0009] In at least some embodiments, the lower end of the bearing guide rod is fixedly connected to a guide rod end plate, the bearing guide rod is slidably connected to the first guide hole and the support guide hole, and the upper surface of the guide rod end plate is fixedly connected to a support tension spring, which is sleeved on the bearing guide rod.
[0010] In at least some embodiments, a rectangular strip is protruding from the upper and lower surfaces of the limiting adjustment groove, and a rectangular strip groove is recessed from the upper and lower surfaces of the stop slider.
[0011] This utility model provides a Bailey beam structure load-bearing testing device, which has the following beneficial effects:
[0012] When using the load-bearing testing device for Bailey bridges in this utility model, the Bailey bridge is supported by adjusting the load-bearing frame. Through the rolling connection between the Bailey bridge and the load-bearing roller, the left and right positions of the Bailey bridge can be flexibly adjusted so that the test rod is located at the set test node, which improves the adjustment flexibility of the Bailey bridge load-bearing test. During the test, the hydraulic cylinder pushes the balance support, pressure detector and test rod upward, so that the upper end of the test rod contacts the lower surface of the Bailey bridge and applies a pushing force to it. The pushing force is detected by the pressure detector and the pressure value is displayed on the pressure display panel. The pressure when the Bailey bridge deforms is observed and recorded, so that the load-bearing strength of the Bailey bridge can be accurately measured.
[0013] Furthermore, the two movable stops in this application can be adjusted left and right inside the test bench, thereby adjusting the distance between the two movable stops. When applying pressure to the Bailey bridge, the distance between the two movable stops can be adjusted according to the required test plan, and the support nodes of the Bailey bridge can be adjusted according to the test plan requirements, thus improving the flexibility of the Bailey bridge test. Attached Figure Description
[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.
[0015] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.
[0016] In the attached diagram:
[0017] Figure 1 A schematic diagram of the overall structure of this application is shown;
[0018] Figure 2 This application shows Figure 1 A top-view structural diagram;
[0019] Figure 3 This application shows Figure 1 A schematic diagram of the left-side view structure;
[0020] Figure 4 A schematic diagram of the structure under no-load conditions is shown.
[0021] Figure 5 A schematic diagram of the adjustable load-bearing frame of this application is shown;
[0022] Figure 6 This application shows Figure 4 The structural diagram below;
[0023] Figure 7 A schematic diagram of the test bench of this application is shown.
[0024] List of reference numerals
[0025] 1. Test stand; 101. Limit adjustment groove; 102. First guide hole; 103. Second guide hole; 2. Base; 3. Hydraulic cylinder; 4. Balance support platform; 401. Support platform guide hole; 402. Support top tension spring; 5. Pressure detector; 501. Pressure display panel; 6. Test top rod; 7. Adjustable bearing frame; 701. Bearing roller; 702. Bearing guide rod; 703. Guide rod end plate; 8. Movable stop bar; 801. Stop bar slider. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0027] Example 1: Please refer to Figures 1 to 7 :
[0028] This utility model proposes a Bailey beam structure load-bearing testing device, comprising: a test platform 1, a base 2 mounted on the lower part of the test platform 1 via a bracket, a hydraulic cylinder 3 fixedly connected to the center of the upper surface of the base 2, and two movable stop bars 8 mounted on the test platform 1. The test platform 1 is parallel to the base 2, the top rod of the hydraulic cylinder 3 is perpendicular to the upper surface of the test platform 1, a balance support 4 is fixedly connected to the upper end of the hydraulic cylinder 3, the balance support 4 is parallel to the lower surface of the test platform 1, a pressure detector 5 is fixedly connected to the center of the upper surface of the balance support 4, the pressure detector 5 is connected to a pressure display panel 501 via an electrical connection wire, the pressure display panel 501 is fixedly connected to the front of the test platform 1 by screws, a test top rod 6 is fixedly connected above the pressure detector 5, the test top rod 6 movably passes through the test platform 1, and an adjustable load-bearing frame 7 is movably connected above the test platform 1. The frame 7 is located below the movable stop bar 8. Two limit adjustment grooves 101 are respectively opened on the front and rear walls of the test platform 1. A stop bar slider 801 is fixedly connected to each end of the movable stop bar 8. The stop bar slider 801 is slidably connected to the limit adjustment groove 101. When testing the load-bearing strength of the Bailey bridge frame, the Bailey bridge frame is inserted horizontally between the adjusting load-bearing frame 7 and the movable stop bar 8. The position of the Bailey bridge frame is adjusted left and right so that the tested position of the Bailey bridge frame is directly above the test top rod 6. The hydraulic cylinder 3 is activated, and the balance support 4, pressure detector 5 and test top rod 6 are pushed upward by the hydraulic cylinder 3. After the test top rod 6 contacts the Bailey bridge frame, the pressure on the Bailey bridge frame is detected by the pressure detector 5, and the pressure value is displayed by the pressure display panel 501. The pressure display panel 501 is observed and recorded when the Bailey bridge frame deforms or breaks, and the load-bearing strength of the Bailey bridge frame can be measured.
[0029] In this embodiment, a first guide hole 102 with four circular holes is longitudinally provided on the test platform 1, and a second guide hole 103 is vertically provided in the center of the test platform 1. A movable stop bar 8 is slidably connected inside the second guide hole 103 to play a guiding role. The test platform 1 serves as a support structure for adjusting the load-bearing frame 7 and the movable stop bar 8, thereby limiting and supporting the Bailey bridge.
[0030] In this embodiment, the balance support platform 4 has an "H" shaped structure. A guide hole 401 is provided through each of the four end plates of the balance support platform 4. Four support tension springs 402 are fixedly connected to the lower surface of the balance support platform 4, located below the guide holes 401. Normally, the support tension springs 402 retract, supporting the adjusting support frame 7. When the Bailey bridge is placed above the adjusting support frame 7, as the hydraulic cylinder 3 pushes the balance support platform 4, pressure detector 5, and test rod 6 upwards, the balance support platform 4 also moves upwards. When the Bailey bridge contacts the movable stop bar 8, the adjusting support frame 7 stops rising. With the continuous action of the hydraulic cylinder 3, the balance support platform 4 continues to rise, stretching the support tension springs 402, thus maintaining support for the Bailey bridge through the adjusting support frame 7.
[0031] In this embodiment, the adjusting support frame 7 is a rectangular frame. Six support rollers 701 are rotatably connected inside the adjusting support frame 7 via bearings. Four support guide rods 702 are vertically welded to the lower surface of the adjusting support frame 7. A guide rod end plate 703 is fixedly connected to the lower end of each support guide rod 702. The support guide rod 702 is slidably connected to the first guide hole 102 and the support platform guide hole 401, serving a guiding function. A top support spring 402 is fixedly connected to the upper surface of the guide rod end plate 703, and the top support spring 402 is sleeved on the support guide rod 702. When the Bailey bridge is installed, the lower surface of the Bailey bridge is rotatably connected to the support rollers 701, allowing the Bailey bridge to be adjusted left and right above the adjusting support frame 7. This avoids the situation where the Bailey bridge is too heavy to move easily, improving the adjustment flexibility of the Bailey bridge.
[0032] In Example 2, based on Example 1, a rectangular strip is protruding from the upper and lower surfaces of the limit adjustment groove 101, and a rectangular groove is recessed from the upper and lower surfaces of the stop slider 801. The two movable stops 8 can be adjusted left and right inside the test bench 1, thereby adjusting the distance between the two movable stops 8. When applying pressure to the Bailey bridge, the distance between the two movable stops 8 can be adjusted according to the required test plan, and the support nodes of the Bailey bridge can be adjusted according to the test plan requirements to adapt to different load-bearing test plans.
[0033] The working principle of this embodiment is as follows: When testing the load-bearing strength of the Bailey bridge, the Bailey bridge is inserted horizontally between the adjusting load-bearing frame 7 and the movable stop bar 8, and the position of the Bailey bridge is adjusted left and right so that the tested position of the Bailey bridge is directly above the test top rod 6. The hydraulic cylinder 3 is activated, and the balance support 4, pressure detector 5 and test top rod 6 are pushed upward by the hydraulic cylinder 3, so that the adjusting load-bearing frame 7 moves upward. The Bailey bridge is fixed by adjusting the load-bearing frame 7 and the movable stop bar 8. After the test top rod 6 contacts the Bailey bridge, the pressure on the Bailey bridge is detected by the pressure detector 5, and the pressure value is displayed on the pressure display panel 501. The pressure display panel 501 is observed and recorded when the Bailey bridge deforms or breaks, so that the load-bearing strength of the Bailey bridge can be measured. Based on the load-bearing strength of the Bailey bridge, it can be calculated whether the overall load-bearing strength of the Bailey beam meets the set requirements.
[0034] The following points should be noted in this article:
[0035] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.
[0036] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.
[0037] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.
Claims
1. A Bailey beam structure load-bearing testing device, comprising: A test bench (1) is provided, with a base (2) mounted on its underside via a bracket. A hydraulic cylinder (3) is fixedly connected to the center of the upper surface of the base (2). Two movable stop bars (8) are installed on the test bench (1). The test bench (1) is parallel to the base (2), the top rod of the hydraulic cylinder (3) is perpendicular to the upper surface of the test bench (1), and a balance support (4) is fixedly connected to the upper end of the hydraulic cylinder (3). The balance support (4) is parallel to the lower surface of the test bench (1), and a pressure detector (5) is fixedly connected to the center of the upper surface of the balance support (4). The pressure detector (5) is connected to a pressure display via an electrical connection line. The pressure display panel (501) is fixedly connected to the front of the test bench (1) by screws. A test rod (6) is fixedly connected above the pressure detector (5). The test rod (6) moves through the test bench (1). An adjustable bearing frame (7) is movably connected above the test bench (1). The adjustable bearing frame (7) is located below the movable stop (8). Two limit adjustment grooves (101) are respectively opened on the front and rear walls of the test bench (1). A stop slider (801) is fixedly connected to each end of the movable stop (8). The stop slider (801) slides through the limit adjustment groove (101).
2. The Bailey beam structure load-bearing testing device according to claim 1, characterized in that, The test bench (1) has a first guide hole (102) with four circular holes running through it longitudinally, and a second guide hole (103) is vertically opened in the center of the test bench (1). A movable stop bar (8) is slidably connected inside the second guide hole (103).
3. The Bailey beam structure load-bearing testing device according to claim 1, characterized in that, The balance support (4) has an "H" shaped structure. A support guide hole (401) is opened through each of the four end plates of the balance support (4). Four support tension springs (402) are fixedly connected to the lower surface of the balance support (4). The support tension springs (402) are located below the support guide holes (401).
4. The Bailey beam structure load-bearing testing device according to claim 1, characterized in that, The adjustable bearing frame (7) is a rectangular frame. The interior of the adjustable bearing frame (7) is connected to six bearing rollers (701) by bearings. Four bearing guide rods (702) are vertically welded to the lower surface of the adjustable bearing frame (7).
5. The Bailey beam structure load-bearing testing device according to claim 4, characterized in that, The lower end of the bearing guide rod (702) is fixedly connected to the guide rod end plate (703). The bearing guide rod (702) is slidably connected to the first guide hole (102) and the support guide hole (401). The upper surface of the guide rod end plate (703) is fixedly connected to the support tension spring (402), and the support tension spring (402) is sleeved on the bearing guide rod (702).
6. The Bailey beam structure load-bearing testing device according to claim 1, characterized in that, The upper and lower surfaces of the limiting adjustment groove (101) are respectively provided with long strips, and the upper and lower surfaces of the stop slider (801) are respectively provided with strip grooves.