Bridge static load performance detection device

Abstract

The utility model relates to the technical field of bridge detection, in particular to a bridge static load performance detection device which comprises a bottom plate, a counter-force frame is fixedly installed at the top end of the bottom plate, a detection mechanism is arranged at the top end of the counter-force frame, and the detection mechanism comprises a supporting frame, a first hydraulic cylinder and a pressing rod. Rails are fixedly mounted on the two sides of the top end of the bottom plate correspondingly, bearing plates are movably mounted on the two sides of the two rails correspondingly, and walking wheels and guide wheels are movably mounted on the two sides of the bottom ends of the two bearing plates through shaft brackets correspondingly. The first motor, the first chain wheel, the second chain wheel, the chain, the walking wheel and the guide wheel are used in cooperation, during adjustment, the first motor on one side of the bottom end of the bearing plate is started, the first motor controls the first chain wheel to rotate, the first chain wheel drives the second chain wheel to rotate through the chain, and the second chain wheel drives the walking wheel to roll on the track through the transmission shaft; and meanwhile, the guide wheel on the other side assists in guiding, so that the purpose of convenient adjustment is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge detection, in particular to a bridge static load performance detection device. Background Art

[0002] Bridge static load performance testing refers to the static testing and monitoring of built bridge structures to evaluate their load-bearing capacity and structural safety. This test is usually used for quality control of new bridges and structural inspection of existing bridges. Static load performance testing generally adopts the method of loading test, which simulates the actual stress conditions of the bridge during operation by applying vertical load or lateral force.

[0003] The existing bridge static load performance testing devices on the market are usually unable to adjust the position of the bottom support assembly according to the length of the test beam when in use, so that only the test beam of the same length can be tested each time. For this reason, we propose a bridge static load performance testing device. Utility Model Content

[0004] The purpose of the utility model is to provide a bridge static load performance detection device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A bridge static load performance detection device comprises a bottom plate, a reaction frame is fixedly mounted on the top of the bottom plate, a detection mechanism is arranged on the top of the reaction frame, and the detection mechanism comprises a support frame, a first hydraulic cylinder and a pressure rod;

[0007] Tracks are fixedly installed on both sides of the top of the bottom plate, and carrying plates are movably installed on both sides of the two tracks. Walking wheels and guide wheels are movably installed on both sides of the bottom ends of the two carrying plates through shaft frames.

[0008] A positioning mechanism is arranged in the middle of the bottom end of the bottom plate, and the positioning mechanism comprises a bottom frame, a screw rod and an insertion rod. A plurality of positioning grooves are arranged at equal distances at the top of the middle part of the bottom plate.

[0009] Preferably, a support frame is fixedly installed in the middle of the top of the reaction frame, and a plurality of first hydraulic cylinders are arranged side by side at the top of the support frame, and the output shafts of the plurality of first hydraulic cylinders pass through a pressure rod fixedly installed on the reaction frame;

[0010] Preferably, a first motor is fixedly mounted on the bottom end of one side of the bearing plate close to the walking wheel, a first sprocket is fixedly mounted on the output shaft of the first motor, a second sprocket is arranged on the transmission shaft in the middle of the walking wheel, and the second sprocket is movably connected to the first sprocket through a chain;

[0011] Preferably, a base frame is fixedly mounted at the middle of the bottom end of the bearing plate, a support plate is fixedly mounted on the inner side of the upper end of the base frame, a second motor is fixedly mounted on the top end of the support plate, a screw rod is fixedly mounted on the output shaft of the second motor, and the bottom end of the screw rod is externally threadedly connected to the plug rod;

[0012] Preferably, guide rods are fixedly mounted on both sides of the base frame, and guide sleeves movably sleeved on the guide rods are arranged on both sides of the top end of the insertion rod;

[0013] Preferably, racks are fixedly mounted on both sides of the top of the bearing plate, and a plurality of second hydraulic cylinders are arranged on one side of the back of the two racks, and the output shafts of the plurality of second hydraulic cylinders pass through the racks and are fixedly mounted with clamping plates.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. This bridge static load performance detection device is used in conjunction with a first motor, a first sprocket, a second sprocket, a chain, a traveling wheel and a guide wheel. During adjustment, the first motor on one side of the bottom end of the load-bearing plate is started, and the first motor controls the rotation of the first sprocket. The first sprocket drives the second sprocket to rotate through the chain. The second sprocket drives the traveling wheel to roll on the track through the transmission shaft. At the same time, the guide wheel on the other side assists in guiding, thereby achieving the purpose of easy adjustment.

[0016] 2. This bridge static load performance detection device is used in conjunction with a base frame, a screw rod, a plug rod and a second motor. When the spacing between the two bearing plates is adjusted, the second motor is started, and the second motor controls the screw rod to rotate. When the screw rod rotates, the plug rod is guided by the guide sleeves and guide rods at the top ends of both sides so that the plug rod descends along a straight line until the bottom end of the plug rod is inserted into the positioning groove set in the middle of the top end of the base plate and fixed, so that the bearing plate will not be displaced after the position is adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall main structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the positioning mechanism structure of the utility model;

[0019] Figure 3 For this utility model Figure 2 The enlarged schematic diagram of point A in the middle;

[0020] Figure 4 For this utility model Figure 2 A magnified schematic diagram of point B in the middle.

[0021] In the figure: 1, base plate; 2, reaction frame; 3, detection mechanism; 301, support frame; 302, first hydraulic cylinder; 303, pressure rod; 4, track; 5, load-bearing plate; 6, axle frame; 7, walking wheel; 8, guide wheel; 9, positioning mechanism; 901, base frame; 902, screw rod; 903, insertion rod; 10, positioning groove; 11, first motor; 12, first sprocket; 13, second sprocket; 14, chain; 15, support plate; 16, second motor; 17, guide rod; 18, guide sleeve; 19, frame; 20, second hydraulic cylinder; 21, clamping plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0024] like Figure 1-4 As shown, a technical solution provided by the utility model:

[0025] A bridge static load performance detection device comprises a base plate 1, a reaction frame 2 is fixedly installed on the top of the base plate 1, a detection mechanism 3 is arranged on the top of the reaction frame 2, and the detection mechanism 3 comprises a support frame 301, a first hydraulic cylinder 302 and a pressure rod 303; the support frame 301 is fixedly installed in the middle of the top of the reaction frame 2, a plurality of first hydraulic cylinders 302 are arranged side by side on the top of the support frame 301, and the output shafts of the plurality of first hydraulic cylinders 302 pass through the reaction frame 2 and are fixedly installed with pressure rods 303; tracks 4 are fixedly installed on both sides of the top of the base plate 1, bearing plates 5 are movably installed on both sides of the two tracks 4, and walking wheels 7 and guide wheels 8 are movably installed on both sides of the bottom ends of the two bearing plates 5 through shaft frames 6; a first motor 11 is fixedly installed on the bottom end of one side of the bearing plate 5 close to the walking wheel 7, a first sprocket 12 is fixedly installed on the output shaft of the first motor 11, a second sprocket 13 is arranged on the transmission shaft in the middle of the walking wheel 7, and the second sprocket 13 is movably connected to the first sprocket 12 through a chain 14;

[0026] In this embodiment, the two supporting plates 5 in the device are used to support the experimental beam. The spacing between the two supporting plates 5 can be adjusted to facilitate adaptation to experimental beams of different lengths. During adjustment, the first motor 11 on one side of the bottom end of the supporting plate 5 is started, and the first motor 11 controls the rotation of the first sprocket 12. The first sprocket 12 drives the second sprocket 13 to rotate through the chain 14. The second sprocket 13 drives the walking wheel 7 to roll on the track 4 through the transmission shaft, and at the same time, the guide wheel 8 on the other side assists in guiding, thereby achieving the purpose of easy adjustment.

[0027] like Figure 2 As shown, a positioning mechanism 9 is provided at the middle of the bottom end of the bottom plate 1, and the positioning mechanism 9 includes a base frame 901, a screw rod 902 and an insertion rod 903, and a plurality of positioning grooves 10 are provided at equal distances at the top of the middle part of the bottom plate 1; the base frame 901 is fixedly installed at the middle of the bottom end of the bearing plate 5, and a support plate 15 is fixedly installed on the inner side of the upper end of the base frame 901, and a second motor 16 is fixedly installed on the top of the support plate 15, and a screw rod 902 is fixedly installed on the output shaft of the second motor 16, and the bottom end of the screw rod 902 is externally threadedly connected to the insertion rod 903; guide rods 17 are fixedly installed on both sides of the base frame 901, and guide sleeves 18 movably sleeved on the guide rods 17 are provided on both sides of the top of the insertion rod 903;

[0028] In this embodiment, when the spacing between the two supporting plates 5 is adjusted, the second motor 16 is started, and the second motor 16 controls the screw rod 902 to rotate. When the screw rod 902 rotates, the insertion rod 903 is guided by the guide sleeves 18 and the guide rods 17 at the top ends of both sides so that the insertion rod 903 descends along a straight line until the bottom end of the insertion rod 903 is inserted into the positioning groove 10 set in the middle of the top end of the base plate 1 and fixed, so that the supporting plate 5 will not be displaced after the position is adjusted.

[0029] like Figure 4 As shown, racks 19 are fixedly installed on both sides of the top of the carrying plate 5, and a plurality of second hydraulic cylinders 20 are arranged on one side of the back of the two racks 19, and the output shafts of the plurality of second hydraulic cylinders 20 pass through the racks 19 and are fixedly installed with clamping plates 21;

[0030] In this embodiment, after the test beam is placed stably, the second hydraulic cylinders 20 on both sides of the top of the load-bearing plate 5 are started. After the second hydraulic cylinders 20 are started, the clamping plates 21 are controlled to clamp and fix the test beam to avoid displacement under the condition of pressure load.

[0031] Working principle: The two bearing plates 5 in the device are used to support the experimental beam. The spacing between the two bearing plates 5 can be adjusted to facilitate the adaptation to experimental beams of different lengths. When adjusting, the first motor 11 on one side of the bottom end of the bearing plate 5 is started, and the first motor 11 controls the first sprocket 12 to rotate. The first sprocket 12 drives the second sprocket 13 to rotate through the chain 14. The second sprocket 13 drives the walking wheel 7 to roll on the track 4 through the transmission shaft, and the guide wheel 8 on the other side assists in guiding; when the spacing between the two bearing plates 5 is adjusted, the second motor 16 is started, and the second motor 16 controls the screw rod 902 to rotate. When the screw rod 902 rotates, the insertion rod 903 passes through the guide sleeves at the top of both sides. 18 and the guide rod 17 guide the insertion rod 903 to descend in a straight line until the bottom end of the insertion rod 903 is inserted into the positioning groove 10 set in the middle part of the top of the bottom plate 1 and fixed, so that the load-bearing plate 5 will not be displaced after adjusting the position; then the test beam is placed on the two load-bearing plates 5, and then the second hydraulic cylinders 20 on both sides of the top of the load-bearing plates 5 are started. After the second hydraulic cylinder 20 is started, the clamping plate 21 is controlled to clamp the test beam to avoid displacement under the condition of pressure load, and then the first hydraulic cylinder 302 at the top of the support frame 301 is started. After the first hydraulic cylinder 302 is started, the pressure rod 303 is controlled to press down to apply a vertical load to the test beam to simulate the stress conditions during the actual operation of the bridge.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A bridge static load performance detection device, characterized in that: include A bottom plate (1), a reaction frame (2) being fixedly mounted on the top of the bottom plate (1), a detection mechanism (3) being arranged on the top of the reaction frame (2), and the detection mechanism (3) comprising a support frame (301), a first hydraulic cylinder (302) and a pressure rod (303); Tracks (4) are fixedly mounted on both sides of the top of the bottom plate (1), supporting plates (5) are movably mounted on both sides of the two tracks (4), and running wheels (7) and guide wheels (8) are movably mounted on both sides of the bottom ends of the two supporting plates (5) via shaft frames (6); A positioning mechanism (9) is arranged at the middle of the bottom end of the base plate (1), and the positioning mechanism (9) comprises a base frame (901), a screw rod (902) and an insertion rod (903). A plurality of positioning grooves (10) are arranged at equal distances at the top of the middle portion of the base plate (1).

2. A bridge static load performance detection device according to claim 1, characterized in that: A support frame (301) is fixedly installed in the middle of the top end of the reaction frame (2), and a plurality of first hydraulic cylinders (302) are arranged side by side at the top end of the support frame (301), and the output shafts of the plurality of first hydraulic cylinders (302) pass through the reaction frame (2) to fix the pressure rods (303).

3. A bridge static load performance detection device according to claim 1, characterized in that: A first motor (11) is fixedly mounted on the bottom end of one side of the bearing plate (5) close to the traveling wheel (7); a first sprocket (12) is fixedly mounted on the output shaft of the first motor (11); a second sprocket (13) is arranged on the transmission shaft in the middle of the traveling wheel (7); the second sprocket (13) is movably connected to the first sprocket (12) via a chain (14).

4. A bridge static load performance detection device according to claim 1, characterized in that: A base frame (901) is fixedly mounted in the middle of the bottom end of the bearing plate (5), a support plate (15) is fixedly mounted on the inner side of the upper end of the base frame (901), a second motor (16) is fixedly mounted on the top end of the support plate (15), a screw rod (902) is fixedly mounted on the output shaft of the second motor (16), and the bottom end of the screw rod (902) is externally threadedly connected to the plug rod (903).

5. A bridge static load performance detection device according to claim 1, characterized in that: Guide rods (17) are fixedly mounted on both sides of the base frame (901), and guide sleeves (18) movably sleeved on the guide rods (17) are arranged on both sides of the top end of the insertion rod (903).

6. A bridge static load performance detection device according to claim 1, characterized in that: Racks (19) are fixedly mounted on both sides of the top of the bearing plate (5), and a plurality of second hydraulic cylinders (20) are arranged on the back side of the two racks (19). The output shafts of the plurality of second hydraulic cylinders (20) pass through the racks (19) and are fixedly mounted with clamping plates (21).

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