Bridge bearing capacity testing device

Abstract

The utility model discloses a bridge bearing capacity testing device, which relates to the technical field of bridge detection and comprises a base, the upper surface of the base is provided with a limiting groove and a mounting frame, a clamping unit is arranged in the limiting groove, and a pressurizing unit is mounted on the mounting frame. The device has the beneficial effects that pressurization detection of different pressures is performed on a sample through the hydraulic assembly and the pressing block, the pressure borne by the sample is detected through the pressure detection assembly, the height difference between the movable block and the sample is detected through the distance measuring instrument, and detection of the bearing capacity of the sample is completed according to the sinking depth of the surface of the sample under different pressures; then the inclination angle of a pressing block is adjusted through a first hydraulic cylinder, a second mounting seat and a third mounting seat, so that the pressing block performs pressurization detection on the sample at different angles, the accuracy of a detection result is ensured, the detection efficiency is improved, the bearing capacity of a constructed bridge under the same proportion can be predicted according to the bearing capacity of the sample, and the detection accuracy is improved. And the accuracy of prediction results is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge detection, in particular to a bridge bearing capacity testing device. Background Art

[0002] Highway bridges are generally composed of superstructures, substructures, supports and auxiliary structures. Before the construction project begins, it is generally necessary to conduct hardness tests on pavement material samples selected with the same proportion to predict the compressive strength of the completed highway pavement.

[0003] After searching, the Chinese patent publication number CN209559632U ​​discloses a highway bridge bearing capacity detection device, which mainly controls the measuring block through a servo motor and can perform a downward pressure test on the pavement material placed in the shell once or multiple times.

[0004] By comparing with the existing technologies in the related fields, it can be seen that the existing detection devices can only apply vertical pressure to the top of the sample for detection when in use, which is not convenient for adjusting the pressure angle of the detection, thus affecting the detection results and making the detection results less accurate. Utility Model Content

[0005] The purpose of the utility model is to provide a bridge bearing capacity testing device in order to solve the above problems.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0007] A bridge bearing capacity testing device comprises a base, a limiting groove and a mounting frame are arranged on the upper surface of the base, a clamping unit is arranged in the limiting groove, and a pressurizing unit is installed on the mounting frame. A sample is placed through the base and the limiting groove, the sample is clamped and fixed by the clamping unit, and the sample is pressurized by the pressurizing unit. According to the deformation of the sample after pressurization, the bearing capacity of the sample is tested;

[0008] The pressurizing unit includes a hydraulic component, a first hydraulic cylinder, and a sliding rod. The hydraulic component is installed on a mounting frame. A mounting plate is installed on the hydraulic component. The mounting plate is slidably connected to the mounting frame. A first mounting seat and a second mounting seat are installed on the lower surface of the mounting plate. The second mounting seat is located on both sides of the first mounting seat. A movable block is rotatably installed on the first mounting seat. Third mounting seats are respectively installed on both sides of the movable block. The third mounting seat and the second mounting seat are respectively rotatably connected to the two ends of the first hydraulic cylinder. A mounting cavity is provided in the movable block. A pressure detection component is provided at the upper end of the inner part of the mounting cavity. The sliding rod is slidably installed on the movable block. A top plate is provided on the part of the sliding rod located in the mounting cavity. A pressure block is installed at the lower end of the sliding rod. The hydraulic component, the first hydraulic cylinder, and the pressure detection component Electrically connected to an external controller, the hydraulic component, the first hydraulic cylinder, and the pressure detection component adopt existing technologies. The movable block is supported and limited by the first hydraulic cylinder, the second mounting seat, and the third mounting seat. The hydraulic component drives the first mounting seat and the movable block to move through the mounting plate. The movable block drives the pressure block to move to the sample through the sliding rod and the top plate. The pressure block applies pressure to the pressure detection component through the sliding rod and the top plate. The pressure applied to the sample by the pressure block is detected by the pressure detection component. The hydraulic component applies different pressures to the sample through the pressure block, thereby completing the detection of the sample's bearing capacity. At the same time, the inclination angle of the movable block is adjusted by the first hydraulic cylinder and the third mounting seat, thereby performing pressurization detection on the sample at different angles.

[0009] Furthermore, the pressing block is spherical. Due to the spherical design, when the pressing block presses the sample at different angles, the contact area between the pressing block and the sample remains the same.

[0010] Furthermore, the clamping unit includes a second hydraulic cylinder, which is symmetrically arranged on the four inner sides of the limiting groove. A clamping plate is installed on the telescopic end of the second hydraulic cylinder. The second hydraulic cylinder is electrically connected to the external controller. The second hydraulic cylinder works using existing technology. The second hydraulic cylinder clamps and pushes the sample through the clamping plate.

[0011] Furthermore, a pushing unit is provided in the limiting groove, and the pushing unit includes a support rod and a discharge hole. The support rod is slidably installed on the base, and a pushing plate is installed at the end of the support rod. The pushing plate is slidably connected in the limiting groove, and the discharge hole is arranged on the side of the base. The discharge hole and the pushing plate correspond to each other. The crushed materials in the limiting groove are pushed by the support rod and the pushing plate, and the crushed materials are discharged through the discharge hole.

[0012] Furthermore, a displacement unit is provided on the lower surface of the base, and the displacement unit includes a placement groove, which is provided on the lower surface of the base. A third hydraulic cylinder is installed in the placement groove, and a universal wheel is installed on the telescopic end of the third hydraulic cylinder. The third hydraulic cylinder is electrically connected to an external controller, and the third hydraulic cylinder works using existing technology. The third hydraulic cylinder drives the universal wheel to retract or move out of the placement groove, and the universal wheel facilitates the movement of the entire device.

[0013] Furthermore, a distance meter is installed on the side of the movable block, and the distance meter is electrically connected to the external controller. The distance meter works by adopting the existing technology, and the distance between the movable block and the sample surface is measured by the distance meter.

[0014] Furthermore, balls are rotatably mounted on both ends of the mounting plate, and the balls are slidably connected to the mounting frame, so that the mounting plate can be better lifted and lowered along the mounting frame through the balls.

[0015] The beneficial effects compared with the prior art are as follows:

[0016] 1. Perform pressurization tests on the sample at different pressures through the hydraulic assembly, the mounting plate, the first mounting seat, the movable block, the slide bar and the pressure block, detect the pressure carried by the sample through the pressure detection assembly, and detect the height from the movable block to the sample through the rangefinder. According to the detected height difference, the depth of the sample surface under different pressures can be obtained, and the sample bearing capacity can be tested according to the depth of the sample surface. At the same time, the inclination angle of the pressure block is adjusted by the first hydraulic cylinder, the second mounting seat and the third mounting seat, so that the pressure block pressurizes the sample at different angles, thereby performing pressurization tests on the sample at different angles, ensuring the accuracy of the test results, improving the efficiency of the test, and predicting the bearing capacity of the bridge built under the same ratio according to the size of the sample bearing capacity, ensuring the accuracy of the prediction results.

[0017] 2. The sample is pushed by the second hydraulic cylinder and the clamping plate, so as to adjust the placement position of the sample in the limit groove, which is convenient for testing different positions of the sample. At the same time, during the testing process, the second hydraulic cylinder clamps the sample through the clamping plate, thereby improving the stability of the sample during the testing process and improving the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1It is a schematic diagram of the overall structure of a bridge bearing capacity testing device described in the utility model;

[0020] Figure 2 The utility model is a bridge bearing capacity testing device Figure 1 The enlarged structural diagram at A in the middle;

[0021] Figure 3 It is a schematic diagram of a partial cross-sectional structure of a bridge bearing capacity testing device according to the utility model;

[0022] Figure 4 The utility model is a bridge bearing capacity testing device Figure 3 The enlarged structural diagram at B in the middle;

[0023] Figure 5 The utility model is a bridge bearing capacity testing device Figure 3 The enlarged structural diagram at C in the middle;

[0024] Figure 6 It is a schematic diagram of the top view of the structure of a bridge bearing capacity testing device described in the utility model;

[0025] Figure 7 It is a schematic diagram of the structure of a bridge bearing capacity testing device described in the utility model when viewed from above;

[0026] Figure 8 The utility model is a bridge bearing capacity testing device Figure 7 Enlarged structural diagram at point D in the middle.

[0027] The following are the descriptions of the reference numerals:

[0028] 1. Base; 2. Limiting groove; 3. Pressurizing unit; 31. Hydraulic assembly; 32. Mounting plate; 33. First mounting seat; 34. Second mounting seat; 35. Movable block; 36. First hydraulic cylinder; 37. Third mounting seat; 38. Mounting cavity; 39. Pressure detection assembly; 310. Top plate; 311. Slide rod; 312. Pressing block; 4. Clamping unit; 41. Second hydraulic cylinder; 42. Clamping plate; 5. Pushing unit; 51. Pushing plate; 52. Support rod; 53. Discharge hole; 6. Displacement unit; 61. Placement groove; 62. Third hydraulic cylinder; 63. Universal wheel; 7. Distance meter; 8. Ball bearing; 9. Mounting frame. DETAILED DESCRIPTION

[0029] like Figure 1-Figure 8 As shown, a bridge bearing capacity testing device comprises a base 1, a limiting groove 2 and a mounting frame 9 are arranged on the upper surface of the base 1, a clamping unit 4 is arranged in the limiting groove 2, and a pressurizing unit 3 is installed on the mounting frame 9, as shown in FIG. Figure 1 , Figure 6As shown, the sample is placed by the base 1 and the limiting groove 2, the sample is clamped and fixed by the clamping unit 4, and the sample is pressurized by the pressurizing unit 3, and the sample's bearing capacity is tested according to the deformation of the sample after pressurization;

[0030] The pressurizing unit 3 includes a hydraulic assembly 31, a first hydraulic cylinder 36, and a slide rod 311. The hydraulic assembly 31 is mounted on the mounting frame 9. A mounting plate 32 is mounted on the hydraulic assembly 31. The mounting plate 32 is slidably connected to the mounting frame 9. A first mounting seat 33 and a second mounting seat 34 are mounted on the lower surface of the mounting plate 32. The second mounting seat 34 is located on both sides of the first mounting seat 33. A movable block 35 is rotatably mounted on the first mounting seat 33. Third mounting seats 37 are respectively mounted on both sides of the movable block 35. The third mounting seat 37 and the second mounting seat 34 are respectively The two ends of the first hydraulic cylinder 36 are rotatably connected, a mounting cavity 38 is provided in the movable block 35, a pressure detection component 39 is provided at the upper end of the mounting cavity 38, a slide bar 311 is slidably installed on the movable block 35, a top plate 310 is provided on the portion of the slide bar 311 located in the mounting cavity 38, a pressure block 312 is installed at the lower end of the slide bar 311, the hydraulic component 31, the first hydraulic cylinder 36, the pressure detection component 39 are electrically connected to the external controller, and the hydraulic component 31, the first hydraulic cylinder 36, and the pressure detection component 39 work using existing technologies, such as Figure 1-Figure 4 As shown, the movable block 35 is supported and limited by the first hydraulic cylinder 36, the second mounting seat 34 and the third mounting seat 37, the mounting plate 32 is driven to move by the hydraulic assembly 31, the first mounting seat 33 and the movable block 35 are driven to move by the mounting plate 32, the movable block 35 drives the pressing block 312 to move onto the sample through the sliding rod 311 and the top plate 310, after the pressing block 312 contacts the sample, the pressing block 312 drives the top plate 310 to move in the opposite direction through the sliding rod 311, so that the top plate 310 applies pressure to the pressure detection assembly 39, and the hydraulic assembly 31 applies different pressures to the sample through the pressing block 312, thereby detecting the sample under different pressures. The state is checked. During the pressurization of the sample, the pressure applied to the sample by the pressure detection component 39 is detected by the pressure detection component 39, so as to complete the detection of the bearing capacity of the sample. At the same time, the first hydraulic cylinder 36 pushes the movable block 35 through the third mounting seat 37, so that the inclination angle of the movable block 35 is adjusted, thereby adjusting the inclination angle of the pressure block 312, so that the pressure block 312 pressurizes the sample at different angles, thereby performing pressurization detection on the sample at different angles, ensuring the accuracy of the test results, so as to effectively predict the bearing capacity of the bridge built under the same formula and ensure the accuracy of the results.

[0031] The pressing block 312 is spherical, such as Figure 2 As shown, the spherical design ensures that when the pressing block 312 applies pressure to the sample at different angles, the contact area between the pressing block 312 and the sample remains the same.

[0032] The clamping unit 4 includes a second hydraulic cylinder 41, which is symmetrically arranged on four sides of the inner side of the limiting groove 2. A clamping plate 42 is installed on the telescopic end of the second hydraulic cylinder 41. The second hydraulic cylinder 41 is electrically connected to the external controller. The second hydraulic cylinder 41 works by using existing technology, such as Figure 1 , Figure 6 As shown, the second hydraulic cylinder 41 drives the clamping plate 42 to move, and the clamping plate 42 pushes the sample, thereby adjusting the placement position of the sample in the limiting groove 2, so as to facilitate the detection of different positions of the sample. At the same time, during the detection process, the second hydraulic cylinder 41 clamps the sample through the clamping plate 42, thereby improving the stability of the sample during the detection process and improving the accuracy of the detection results.

[0033] A pusher unit 5 is provided in the limiting groove 2, and the pusher unit 5 includes a support rod 52 and a discharge hole 53. The support rod 52 is slidably mounted on the base 1, and a pusher plate 51 is installed at the end of the support rod 52. The pusher plate 51 is slidably connected in the limiting groove 2, and the discharge hole 53 is provided on the side of the base 1, and the discharge hole 53 corresponds to the pusher plate 51. Figure 1 , Figure 3 , Figure 6 , Figure 7 As shown, after the detection is completed, the push plate 51 is driven to move by the support rod 52, and the push plate 51 pushes the crushed materials in the limiting groove 2, so that the crushed materials are discharged through the discharge hole 53 for processing, thereby ensuring the cleanliness of the limiting groove 2 and preventing the debris from affecting subsequent detection.

[0034] The lower surface of the base 1 is provided with a displacement unit 6, which includes a placement groove 61, which is provided on the lower surface of the base 1, in which a third hydraulic cylinder 62 is installed, and a universal wheel 63 is installed on the telescopic end of the third hydraulic cylinder 62, and the third hydraulic cylinder 62 is electrically connected to an external controller. The third hydraulic cylinder 62 works by using existing technology, such as Figure 7 , Figure 8 As shown, the third hydraulic cylinder 62 drives the universal wheel 63 to move out of the placement groove 61, and the universal wheel 63 facilitates the movement of the entire device, thereby increasing the convenience of moving the device. During the detection process, the third hydraulic cylinder 62 drives the universal wheel 63 to be stored in the placement groove 61 to avoid affecting the stability of the base 1.

[0035] A rangefinder 7 is installed on the side of the movable block 35. The rangefinder 7 is electrically connected to the external controller. The rangefinder 7 works using existing technology, such as Figure 1 , Figure 2 As shown, the distance between the movable block 35 and the sample surface is measured by the distance meter 7.

[0036] Both ends of the mounting plate 32 are rotatably mounted with balls 8, and the balls 8 are slidably connected to the mounting frame 9. Figure 3 , Figure 5 As shown, the mounting plate 32 is lifted and lowered along the mounting frame 9 by the ball bearings 8, so that the mounting frame 9 can better limit the mounting plate 32, and effectively improve the stability and smoothness of the mounting plate 32 during the lifting process.

[0037] Working principle: Figure 7 , Figure 8 As shown, the third hydraulic cylinder 62 drives the universal wheel 63 to move out of the placement slot 61, and the universal wheel 63 facilitates the movement of the entire device, so that the device is moved to the place where it needs to be used; the third hydraulic cylinder 62 drives the universal wheel 63 to be stored in the placement slot 61, and the placement of the device is completed;

[0038] like Figure 1 , Figure 6 As shown, the sample to be tested is placed in the limit groove 2, and the clamping plate 42 is driven to move by the second hydraulic cylinder 41, and the sample is pushed by the clamping plate 42, and the corresponding positions of the sample and the pressing block 312 are adjusted to facilitate pressurization testing of the sample at different angles; after the adjustment is completed, the second hydraulic cylinder 41 clamps and fixes the sample through the clamping plate 42;

[0039] like Figure 1 , Figure 3 As shown, the hydraulic assembly 31 drives the mounting plate 32 to move, as shown in FIG. Figure 3 , Figure 5 As shown, the mounting plate 32 moves along the mounting frame 9 through the ball bearings 8, as shown in FIG. Figure 1-Figure 4 As shown, the first mounting seat 33 and the movable block 35 are driven to move by the mounting plate 32, and the movable block 35 drives the pressing block 312 to move onto the sample through the sliding rod 311 and the top plate 310. After the pressing block 312 contacts the sample, the pressing block 312 drives the top plate 310 to move in the opposite direction through the sliding rod 311, so that the top plate 310 applies pressure to the pressure detection component 39, and the hydraulic component 31 applies different pressures to the sample through the pressing block 312, and the pressure applied to the sample by the pressing block 312 is detected by the pressure detection component 39;

[0040] like Figure 1 , Figure 2As shown, the movable block 35 drives the distance meter 7 to move. When the pressure detection component 39 detects that the pressure block 312 applies pressure to the sample, the distance meter 7 detects the height from the movable block 35 to the sample at this time; as the pressure of the pressure block 312 on the sample increases, the height from the movable block 35 to the sample changes, and the distance meter 7 detects the changed height. According to the detected height difference, the depth of the sample surface sinking under different pressures can be obtained, thereby completing the detection of the sample bearing capacity. According to the size of the sample bearing capacity, the bearing capacity of the bridge built under the same ratio can be predicted;

[0041] During the detection process, Figure 1-Figure 4 As shown, the first hydraulic cylinder 36 pushes the movable block 35 through the third mounting seat 37, so that the tilt angle of the movable block 35 is adjusted, thereby adjusting the tilt angle of the pressing block 312, so that the pressing block 312 pressurizes the sample at different angles, thereby performing pressurization tests on the sample at different angles;

[0042] After the test is completed, take out the sample in the limit slot 2. Figure 1 , Figure 3 , Figure 6 , Figure 7 As shown, after the detection is completed, the push plate 51 is driven to move by the support rod 52, and the push plate 51 pushes the crushed materials in the limiting groove 2, so that the crushed materials are discharged through the discharge hole 53 for processing, thereby preventing the crushed materials from affecting subsequent detection.

[0043] 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, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A bridge bearing capacity testing device, characterized in that: It comprises a base (1), the upper surface of the base (1) is provided with a limiting groove (2) and a mounting frame (9), a clamping unit (4) is provided in the limiting groove (2), and a pressurizing unit (3) is installed on the mounting frame (9); The pressurizing unit (3) comprises a hydraulic assembly (31), a first hydraulic cylinder (36), and a sliding rod (311); the hydraulic assembly (31) is mounted on the mounting frame (9); a mounting plate (32) is mounted on the hydraulic assembly (31); the mounting plate (32) is slidably connected to the mounting frame (9); a first mounting seat (33) and a second mounting seat (34) are mounted on the lower surface of the mounting plate (32); the second mounting seat (34) is located on both sides of the first mounting seat (33); a movable block (35) is rotatably mounted on the first mounting seat (33); the movable block (35) is rotatably mounted on the first mounting seat (33); A third mounting seat (37) is respectively installed on both sides of the block (35); the third mounting seat (37) and the second mounting seat (34) are rotatably connected to the two ends of the first hydraulic cylinder (36); a mounting cavity (38) is provided in the movable block (35); a pressure detection component (39) is provided at the upper end of the interior of the mounting cavity (38); the slide rod (311) is slidably installed on the movable block (35); a top plate (310) is provided on the portion of the slide rod (311) located in the mounting cavity (38); and a pressure block (312) is installed at the lower end of the slide rod (311).

2. A bridge bearing capacity testing device according to claim 1, characterized in that: The pressing block (312) is spherical.

3. A bridge bearing capacity testing device according to claim 1, characterized in that: The clamping unit (4) comprises a second hydraulic cylinder (41), the second hydraulic cylinder (41) being symmetrically arranged on four sides inside the limiting groove (2), and a clamping plate (42) being installed on the telescopic end of the second hydraulic cylinder (41).

4. A bridge bearing capacity testing device according to claim 1, characterized in that: A material pushing unit (5) is arranged in the limiting groove (2), and the material pushing unit (5) comprises a support rod (52) and a material discharging hole (53). The support rod (52) is slidably mounted on the base (1), and a material pushing plate (51) is mounted at the end of the support rod (52). The material pushing plate (51) is slidably connected in the limiting groove (2), and the material discharging hole (53) is arranged on the side of the base (1), and the material discharging hole (53) corresponds to the material pushing plate (51).

5. A bridge bearing capacity testing device according to claim 1, characterized in that: A displacement unit (6) is provided on the lower surface of the base (1), the displacement unit (6) comprising a placement groove (61), the placement groove (61) being provided on the lower surface of the base (1), a third hydraulic cylinder (62) being installed in the placement groove (61), and a universal wheel (63) being installed on the telescopic end of the third hydraulic cylinder (62).

6. A bridge bearing capacity testing device according to claim 1, characterized in that: A distance meter (7) is installed on the side of the movable block (35).

7. A bridge bearing capacity testing device according to claim 1, characterized in that: Ball bearings (8) are rotatably mounted on both ends of the mounting plate (32), and the ball bearings (8) are slidably connected to the mounting frame (9).

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