Bridge pressure testing device

Abstract

The utility model belongs to the technical field of bridge performance testing, and particularly relates to a bridge pressure testing device which comprises a base, an X-axis moving unit is arranged on the base, a Y-axis moving unit is fixedly connected to the moving end of the X-axis moving unit, a support is fixedly connected to the moving end of the Y-axis moving unit, an air cylinder is fixedly connected to the upper end of the support, and the air cylinder is fixedly connected to the lower end of the support. A movable seat is connected to one side of the bracket in a sliding manner; when the pressing plate is located on the lower portion, the air cylinder drives the pressing plate to descend and press the bridge accessory to achieve static load performance testing of the bridge accessory, when the testing assembly is rotated to enable the pressing roller to be located on the lower portion, the air cylinder drives the pressing roller to press the bridge assembly, and the pressing roller can make contact with the outer surface of the bridge assembly. And the X-axis moving unit can drive the compression roller to roll on the bridge assembly, a linear load can be simulated, continuous movement can be achieved, the condition is closer to the actual use condition, the dynamic load can be better simulated, and the dynamic load performance of bridge accessories can be tested.

Description

Technical Field

[0001] This application relates to the technical field of bridge performance testing, and specifically relates to a bridge pressure testing device. Background Technique

[0002] Before the metal bridges used for cable and optical fiber laying are put into use, pressure tests are carried out on the accessories of the assembled bridges to ensure the practical performance of the bridges and to judge whether subsequent bridge laying work can be carried out;

[0003] The prior art (a Chinese utility model patent with the publication number of CN220289262U) discloses a bridge pressure testing device. Through the mutual cooperation between multiple sensors and a single-chip microcomputer, when the set pressure is reached, the bending depth of the bridge plate is automatically detected, eliminating the need for operators to manually read and observe the bending depth of the bridge accessories, saving manpower;

[0004] The testing method of the testing device in the prior art for bridge accessories is to drive a pressing block to descend by a hydraulic cylinder to apply pressure to the bridge accessories, simulating and applying a static load, mainly used to evaluate the bearing capacity and stability of the bridge under a constant load. Although this method can achieve the static load performance test of the bridge accessories, in the actual use of the bridge accessories, the load received will change continuously. The pressure testing device in the prior art cannot apply a dynamic load to the bridge accessories and cannot test the dynamic load performance of the bridge accessories. Utility Model Content

[0005] The purpose of this application is to provide a bridge pressure testing device to solve the technical problems proposed in the above background technique.

[0006] To achieve the above purpose, this application provides the following technical solution: A bridge pressure testing device includes a base, an X-axis moving unit is arranged on the base, and a Y-axis moving unit is fixedly connected to the moving end of the X-axis moving unit. A bracket is fixedly connected to the moving end of the Y-axis moving unit, and a cylinder is fixedly connected to the upper end of the bracket. A movable seat is slidably connected to one side of the bracket, and a force measuring sensor is fixedly connected to the upper end of the movable seat. The telescopic end of the cylinder penetrates through the bracket and is fixedly connected to the force measuring sensor, and a testing component is connected to the inner wall of the movable seat;

[0007] The testing component includes two side plates symmetrically and rotatably connected to the inner wall of the movable seat, a pressing plate and a connecting column fixedly connected to both ends of the two side plates respectively, a pressing roller rotatably connected to both ends of the two side plates respectively, a positioning groove opened inside one of the side plates and in the movable seat, and a positioning pin inserted into the positioning groove.

[0008] In one implementation, a brush is fixedly connected between the two side plates, and the brush is an L-shaped brush, and one end of the brush is attached to the outer surface of the pressing roller.

[0009] In one embodiment, a grinding block is further connected between the two side plates, and a first movable groove is formed on each of the opposite sides of the two side plates. Both ends of the grinding block are fixedly connected with connecting seats, and the two connecting seats are respectively slidably connected in the two first movable grooves. A lead screw is rotatably connected in one of the first movable grooves, and a guide rod is fixedly connected in the other first movable groove. One of the connecting seats is screwed on the outer part of the lead screw, and the other connecting seat is movably sleeved on the outer part of the guide rod.

[0010] In one embodiment, a positioning unit is further arranged on the base. The positioning unit includes two second movable grooves symmetrically formed at the upper end of the base, two sliding seats symmetrically and slidably connected in the two second movable grooves, and a screw rod rotatably connected in one of the second movable grooves. The screw rod is screwed in the two sliding seats, and one end of the screw rod penetrates through the base and is connected with a turntable.

[0011] In one embodiment, a bridge is clamped between the two sliding seats.

[0012] Compared with the prior art, the beneficial effects of this application are as follows:

[0013] This application is provided with a test component, and the test component is composed of a pressing plate and a pressing roller. When the pressing plate is located below, the pressing plate is driven by a cylinder to descend and press on the bridge fitting to realize the static load performance test of the bridge fitting. When the test component is rotated so that the pressing roller is located below, the cylinder drives the pressing roller to press on the bridge component. The pressing roller can contact the outer surface of the bridge component, and the pressing roller can be driven to roll on the bridge component through the X-axis moving unit, which can simulate a linear load and continuously move, is closer to the actual use situation, can better simulate the dynamic load, and realizes the dynamic load performance test of the bridge fitting. Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the overall structure of this application;

[0015] Figure 2 It is a schematic diagram of the positioning groove structure of this application;

[0016] Figure 3 It is a schematic diagram of the test component structure of this application;

[0017] Figure 4 It is a schematic diagram of the first movable groove and the lead screw of this application;

[0018] Figure 5 It is a schematic diagram of the grinding block, the connecting seat and the guide rod of this application.

[0019] In the figure: 1, base; 2, X-axis moving unit; 3, Y-axis moving unit; 4, bracket; 5, cylinder; 6, movable seat; 7, force measuring sensor; 8, test assembly; 81, side plate; 811, first movable groove; 812, lead screw; 813, guide rod; 82, pressing plate; 83, connecting column; 84, pressing roller; 85, positioning groove; 86, positioning pin; 87, brush; 88, grinding block; 89, connecting seat; 9, positioning unit; 91, second movable groove; 92, sliding seat; 93, screw; 94, turntable; 10, bridge. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0021] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0022] Embodiment:

[0023] Please refer to Figures 1-5 , the present application provides a technical solution: a bridge pressure testing device, including a base 1, an X-axis moving unit 2 is arranged on the base 1, and a Y-axis moving unit 3 is fixedly connected to the moving end of the X-axis moving unit 2. A bracket 4 is fixedly connected to the moving end of the Y-axis moving unit 3, and a cylinder 5 is fixedly connected to the upper end of the bracket 4. A movable seat 6 is slidably connected to one side of the bracket 4, and a force measuring sensor 7 is fixedly connected to the upper end of the movable seat 6. The telescopic end of the cylinder 5 penetrates through the bracket 4 and is fixedly connected to the force measuring sensor 7. A test assembly 8 is connected to the inner wall of the movable seat 6;

[0024] The test assembly 8 includes two side plates 81 symmetrically and rotatably connected to the inner wall of the movable seat 6, a pressing plate 82 and a connecting column 83 fixedly connected to both ends of the two side plates 81 respectively, a pressing roller 84 rotatably connected to both ends of the two side plates 81 respectively, a positioning groove 85 opened in the interior of one of the side plates 81 and in the movable seat 6, and a positioning pin 86 inserted into the positioning groove 85.

[0025] By setting the above solution, the X-axis moving unit 2 can drive the Y-axis moving unit 3 and the test component 8 to perform displacement in the X-axis direction on the base 1. The Y-axis moving unit 3 can drive the test component 8 to perform displacement in the Y-axis direction, adjust the XY-axis position of the test component 8. After placing the bridge 10 on the base 1, adjust the position of the test component 8 through the X-axis moving unit 2 and the Y-axis moving unit 3, so that the test component 8 moves above the bridge 10. Then the cylinder 5 works to drive the test component 8 to descend, so that the pressing plate 82 presses on the bridge 10 and applies pressure to the bridge 10 for pressure testing, realizing the static load performance test of the bridge fittings. If it is necessary to perform a dynamic load performance test on the bridge 10, pull out the positioning pin 86 from the positioning groove 85, and then rotate the side plate 81 by 180 degrees to swap the positions of the pressure roller 84 and the pressing plate 82. When the pressure roller 84 presses on the bridge 10, drive the pressure roller 84 to roll on the bridge 10 through the X-axis moving unit 2, which can simulate a linear load and continuously move, being closer to the actual use situation, better simulating the dynamic load, and realizing the dynamic load performance test of the bridge 10.

[0026] Please refer to Figure 3 In this embodiment, a brush 87 is fixedly connected between the two side plates 81, and the brush 87 is an L-shaped brush 87. One end of the brush 87 is attached to the outer surface of the pressure roller 84, and the other end of the brush 87 can contact the surface of the bridge 10, brushing off the particulate impurities adhered to the outer surface of the bridge 10, avoiding the situation that the particulate impurities affect the rolling of the pressure roller 84 and cause stress concentration. At the same time, one end of the brush 87 contacting the pressure roller 84 can also clean the pressure roller 84.

[0027] Please refer to Figure 4 and Figure 5 In this embodiment, a grinding block 88 is also connected between the two side plates 81, and sliding grooves 811 are formed on the opposite sides of the two side plates 81. Both ends of the grinding block 88 are fixedly connected with connecting seats 89, and the two connecting seats 89 are respectively slidably connected in the two sliding grooves 811. A lead screw 812 is rotatably connected in one of the sliding grooves, and a guide rod 813 is fixedly connected in the other sliding groove. One of the connecting seats 89 is screwed outside the lead screw 812, and the other connecting seat 89 is movably sleeved outside the guide rod 813.

[0028] By setting the above solution, the outer surface of the bridge 10 can be polished by the polishing block 88, making the outer surface of the bridge 10 smoother, so that the pressure roller 84 can slide more smoothly on the bridge 10. At the same time, the polishing block 88 will wear. When the polishing block 88 wears, the polishing block 88 may not be able to contact the outer surface of the bridge 10. At this time, rotate the screw rod 812 to make the connecting seat 89 move. The movement of the connecting seat 89 drives the polishing block 88 to move towards the bridge 10, so that the distance between the polishing block 88 and the bridge 10 can be adjusted, enabling the worn part of the polishing block 88 to continue to contact the outer surface of the bridge 10 and polish the outer surface of the bridge 10.

[0029] Please refer to Figure 1 , in this embodiment, a positioning unit 9 is further provided on the base 1, and the positioning unit 9 includes two moving grooves two 91 symmetrically opened at the upper end of the base 1, two sliding seats 92 symmetrically slidably connected in the two moving grooves two 91, and a screw rod 93 rotatably connected in one of the moving grooves. The screw rod 93 is screwed in the two sliding seats 92, and one end of the screw rod 93 penetrates through the base 1 and is connected with a turntable 94. A bridge 10 is clamped between the two sliding seats 92.

[0030] By setting the above solution, place the bridge 10 between the two sliding seats 92, rotate the turntable 94 to drive the screw rod 93 to rotate, and the rotation of the screw rod 93 can drive the two sliding seats 92 to move towards each other to clamp the bridge 10. When it is not necessary to clamp and position the bridge 10, rotate the screw rod 93 to make the two sliding seats 92 move away from each other.

[0031] The above shows and describes the basic principles, main features and advantages of the present application. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present application is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application, and any reference signs in the claims should not be regarded as limiting the claims involved.

[0032] Although the embodiments of the present application have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A bridge pressure testing device, comprising a base (1), characterized in that: The base (1) is provided with an X-axis moving unit (2), and a Y-axis moving unit (3) is fixedly connected to the moving end of the X-axis moving unit (2), a bracket (4) is fixedly connected to the moving end of the Y-axis moving unit (3), and a cylinder (5) is fixedly connected to the upper end of the bracket (4), a movable seat (6) is slidably connected to one side of the bracket (4), and a force sensor (7) is fixedly connected to the upper end of the movable seat (6), the telescopic end of the cylinder (5) passes through the bracket (4) and is fixedly connected to the force sensor (7), and a test assembly (8) is connected to the inner wall of the movable seat (6); The test assembly (8) comprises two side plates (81) symmetrically rotatably connected to the inner wall of the movable seat (6), a pressing plate (82) and a connecting column (83) respectively fixed to the two side plates (81) at both ends, a pressing roller (84) respectively rotatably connected to the two side plates (81) at both ends, a positioning groove (85) provided in one of the side plates (81) and in the movable seat (6), and a positioning pin (86) inserted in the positioning groove (85).

2. A bridge pressure testing device according to claim 1, characterized in that: A brush (87) is fixedly connected between the two side plates (81), and the brush (87) is an L-shaped brush (87), and one end of the brush (87) is in contact with the outer surface of the pressure roller (84).

3. A bridge pressure testing device according to claim 2, characterized in that: A grinding block (88) is also connected between the two side plates (81), and a movable groove (811) is provided on opposite sides of the two side plates (81). Both ends of the grinding block (88) are fixedly connected with a connecting seat (89), and the two connecting seats (89) are respectively slidably connected in the two movable grooves (811), one of the movable grooves is rotatably connected with a screw rod (812), and the other movable groove is fixedly connected with a guide rod (813), one of the connecting seats (89) is screwed to the outside of the screw rod (812), and the other connecting seat (89) is movably sleeved on the outside of the guide rod (813).

4. A bridge pressure testing device according to claim 3, characterized in that: The base (1) is also provided with a positioning unit (9), and the positioning unit (9) comprises two movable grooves (91) symmetrically arranged at the upper end of the base (1), two slide seats (92) symmetrically slidably connected to the two movable grooves (91), and a screw rod (93) rotatably connected to one of the movable grooves, and the screw rod (93) is screwed into the two slide seats (92), and one end of the screw rod (93) passes through the base (1) and is connected to a rotating disk (94).

5. A bridge pressure testing device according to claim 4, characterized in that: A bridge frame (10) is sandwiched between the two slide seats (92).

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