Bridge steel support casting surface hardness detection device

Abstract

The utility model discloses a bridge steel support casting surface hardness detection device which comprises a device bottom plate, a device top plate and a pair of casting clamping grooves, the device bottom plate is provided with the casting clamping grooves, the device top plate is provided with the casting clamping grooves, the device bottom plate is provided with a pneumatic synchronous pressing structure, and the device top plate is provided with a pneumatic synchronous pressing structure. An auxiliary test tool bit dragging assembly is mounted on the device top plate; the utility model relates to the technical field of hardness detection devices, in the device, a bridge steel support casting is properly fixed and clamped by a device bottom plate and a device top plate through a pneumatic synchronous pressing structure, and the clamping pressure is uniform through the clamping mode, so that a test tool bit can stably pass through the same pressure; the surface of the test casting is dragged and scribed, so that the situation that the test force is not uniform, the test effect is not accurate, and the reference of the detection device is greatly increased is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of hardness detection devices, in particular to a surface hardness detection device for a bridge steel support casting. Background Art

[0002] Bridge steel bearing castings are an important part of the bridge structure. They support and connect the various parts of the bridge to ensure the stability and safety of the bridge. Steel bearing castings are usually made of high-strength steel through a casting process and have the ability to withstand large loads and resist deformation. Surface hardness is one of the important indicators for evaluating the quality of castings. By testing the surface hardness, it can be determined whether the casting meets the design requirements and whether there are casting defects or material problems. The surface hardness is closely related to the wear resistance, fatigue resistance and service life of the casting. Higher surface hardness means that the casting can better resist erosion and mechanical wear from the external environment, thereby extending its service life. Bridges are important transportation infrastructure, and their safety and stability are crucial. Surface hardness testing of steel bearing castings helps to discover and prevent potential safety hazards, ensure the normal operation of bridges and the safety of personnel. Under normal circumstances, hardness testing is generally performed by testers using a Mohs hardness test pen to manually scratch the sample. However, it is impossible to accurately control the scratching force when manually scratching, which may result in errors or even misdetection. Therefore, this case hopes to propose a detection device to solve the above problems. For the above problems, there may already be technical means to solve them in the prior art, but this case wants to provide an alternative or replacement technical solution. Utility Model Content

[0003] To achieve the above purpose, the utility model is implemented through the following technical solutions: a bridge steel support casting surface hardness detection device, comprising: a device bottom plate, a device top plate and a pair of casting slots, the device bottom plate is provided with the casting slot, the device top plate is provided with the casting slot, the device bottom plate is installed with a pneumatic synchronous clamping structure, and the device top plate is installed with an auxiliary test cutter head drag assembly;

[0004] The pneumatic synchronous pressing structure comprises: a bidirectional compression charging and discharging air pump, a connecting air pipe, a plurality of connecting spring columns, a plurality of inflatable telescopic columns and a plurality of connecting airways;

[0005] The bidirectional compression inflation and deflation air pump is installed on the top plate of the device, the connecting air pipe is installed on the bidirectional compression inflation and deflation air pump, and the connecting air pipe is connected to the connecting air channel, a number of the connecting air channels are respectively opened in the top plate of the device, a number of the connecting spring columns are respectively installed on the bottom plate of the device, and a number of the connecting spring columns are respectively connected to the top plate of the device, a number of the inflatable telescopic columns are respectively inserted in a number of the connecting spring columns, and a number of the inflatable telescopic columns are respectively connected to a number of the connecting air channels.

[0006] It should be noted that, in the above, the bridge steel support casting is placed in a pair of casting slots on the device, and the casting slots are recessed slots. This type of slot can position the bridge steel support casting in the device, and then drive the bidirectional compression charging and discharging air pump on the top plate of the device to suck or blow air into a number of connecting air passages through the connecting air pipe, and then transmit the changing air pressure to a number of inflatable telescopic columns, so that the several inflatable telescopic columns are extended and displaced, and then the bottom plate and the top plate of the device are brought close or separated, so that the bottom plate and the top plate of the device respectively compact and tighten the surface of the bridge steel support casting, thereby achieving proper fixation of the bridge steel support casting, and the several connecting spring columns nested on the outside of the several inflatable telescopic columns can automatically reset when the device is not in use, and the air pressure output display screen provided on the bidirectional compression charging and discharging air pump can display the output pressure at the moment in real time, thereby facilitating the control of the test variables to be detected.

[0007] Preferably, the auxiliary test cutter head drag assembly comprises: a power chamber, a traction motor, a traction threaded rod, a traction module, a base inside the module, a cutter head spring column and a test cutter head;

[0008] The power chamber is installed on the top plate of the device, the traction motor is installed in the power chamber, the traction threaded rod is installed in the top plate of the device, and the traction threaded rod is connected to the traction motor, the traction module is sleeved on the traction threaded rod, the module inner base is installed in the traction module, the cutter head spring column is installed on the module inner base, a sliding through slot is opened on the top plate of the device, the test cutter head is inserted into the top plate of the device through the sliding through slot, and the test cutter head is connected to the cutter head spring column;

[0009] It should be noted that, in the above, when the bridge steel bearing casting is pressed and fixed by the device bottom plate and the device top plate, the test cutter head is pressed into the traction module, and the cutter head spring column connected thereto is also compressed synchronously, and then the traction motor in the power chamber is started, and then the traction threaded rod rotates to make the traction module move horizontally, thereby driving the test cutter head to move horizontally, and the test cutter head is tightly attached to the surface of the bridge steel bearing casting, so that when the test cutter head moves horizontally, the strength of the bridge steel bearing casting can be evaluated and tested according to the depth of scratches on the surface of the bridge steel bearing casting. The replacement module arranged on the test cutter head can facilitate the replacement of the test cutter head, and the replacement module can be a screw buckle or an interlocking slide buckle, which is convenient for the replacement and disassembly of the cutter head.

[0010] Preferably, a non-slip rubber pad is provided on the casting slot;

[0011] Preferably, the bidirectional compression charging and discharging air pump is provided with an air pressure output display screen;

[0012] Preferably, a maintenance access port is provided on the power chamber;

[0013] Preferably, a replacement module is provided on the test blade.

[0014] Beneficial Effects

[0015] The utility model provides a surface hardness detection device for bridge steel bearing castings. Compared with the prior art, the surface hardness detection device for bridge steel bearing castings has the following beneficial effects: the device uses a pneumatic synchronous clamping structure to properly fix and clamp the bridge steel bearing castings by the device bottom plate and the device top plate, and this clamping method makes the clamping pressure uniform, so that the test cutter head can drag and scratch the test casting surface steadily and with the same pressure, thereby avoiding uneven test force and inaccurate test results, and greatly increasing the reference of the detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of a surface hardness detection device for a bridge steel support casting described in the utility model.

[0017] Figure 2 The utility model is a schematic diagram of the side structure of a surface hardness detection device for a bridge steel support casting.

[0018] In the figure: 1. Installation bottom plate; 2. Installation top plate; 3. Casting slot; 4. Two-way compression charging and discharging air pump; 5. Connecting air pipe; 6. Connecting spring column; 7. Inflatable telescopic column; 8. Connecting air duct; 9. Power room; 10. Traction motor; 11. Traction threaded rod; 12. Traction module; 13. Base inside the module; 14. Cutter head spring column; 15. Test cutter head. DETAILED DESCRIPTION

[0019] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0020] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and appropriate controllers and encoders should be selected according to actual conditions to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principles and processes, and no longer explains the electrical control.

[0021] Example

[0022] The present invention will be described in detail below in conjunction with the accompanying drawings. Figure 1-2As shown, a surface hardness detection device for a bridge steel support casting comprises: a device bottom plate 1, a device top plate 2 and a pair of casting slots 3, the device bottom plate 1 is provided with the casting slots 3, the device top plate 2 is provided with the casting slots 3, a pneumatic synchronous clamping structure is installed on the device bottom plate 1, and an auxiliary test cutter head 15 dragging assembly is installed on the device top plate 2; the pneumatic synchronous clamping structure comprises: a bidirectional compression charging and discharging air pump 4, a connecting air pipe 5, a plurality of connecting spring columns 6, a plurality of inflatable telescopic columns 7 and a plurality of connecting air passages 8; the bidirectional compression charging and discharging air pump 4 is installed on the device top plate 2, the connecting air pipe 5 is installed on the bidirectional compression charging and discharging air pump 4, and the connecting air pipe 5 is connected to the connecting air passage 8, a plurality of connecting air passages 8 are respectively opened in the device top plate 2, a plurality of connecting spring columns 6 are respectively installed on the device bottom plate 1, and a plurality of connecting spring columns 6 are respectively connected to the device top plate 2, a plurality of inflatable telescopic columns 7 and a plurality of connecting air passages 8; The gas telescopic columns 7 are respectively inserted into several of the connecting spring columns 6, and several of the inflatable telescopic columns 7 are respectively connected to several of the connecting air passages 8; the auxiliary test cutter head 15 drag assembly includes: a power chamber 9, a traction motor 10, a traction threaded rod 11, a traction module 12, a module inner base 13, a cutter head spring column 14 and a test cutter head 15; the power chamber 9 is installed on the device top plate 2, the traction motor 10 is installed in the power chamber 9, the traction threaded rod 11 is installed in the device top plate 2, and the traction threaded rod 11 is connected to the traction motor 10, the traction module 12 is sleeved on the traction threaded rod 11, the module inner base 13 is installed in the traction module 12, the cutter head spring column 14 is installed on the module inner base 13, the device top plate 2 is provided with a sliding groove, the test cutter head 15 is inserted into the device top plate 2 through the sliding groove, and the test cutter head 15 is connected to the cutter head spring column 14.

[0023] According to the attached Figure 1-2It is concluded that the bridge steel support casting is placed in a pair of casting slots 3 on the device. The casting slots 3 are recessed slots. This type of slot can position the bridge steel support casting in the device, and then drive the two-way compression charging and discharging air pump 4 on the top plate 2 of the device to suck or blow air into a number of connecting airways 8 through the connecting air pipe 5, and then transmit the changed air pressure to a number of inflatable telescopic columns 7, so that the several inflatable telescopic columns 7 are telescoped and displaced, thereby making the device bottom plate 1 and the device top plate 2 close to or separated, so that the device bottom plate 1 and the device top plate 2 respectively compact and tighten the surface of the bridge steel support casting, thereby achieving proper fixation of the bridge steel support casting, and the several connecting spring columns 6 nested on the outside of the several inflatable telescopic columns 7 can be automatically reset when the device is not in use, and the air pressure output display screen provided on the two-way compression charging and discharging air pump 4 can be used. The output pressure at this moment is displayed in real time, so as to facilitate the control of the test variables of the detection; when the bridge steel support casting is pressed and fixed by the device bottom plate 1 and the device top plate 2, the test cutter head 15 is pressed into the traction module 12, and the cutter head spring column 14 connected thereto is also compressed synchronously, and then the traction motor 10 in the power chamber 9 is started, and then the traction threaded rod 11 rotates to make the traction module 12 move horizontally, thereby driving the test cutter head 15 to move horizontally, and the test cutter head 15 is tightly attached to the surface of the bridge steel support casting, so that when the test cutter head 15 moves horizontally, the strength of the bridge steel support casting can be evaluated and detected according to the depth of the scratches on the surface of the bridge steel support casting. The replacement module arranged on the test cutter head 15 can facilitate the replacement of the test cutter head 15, and the replacement module can be a screw buckle or an interlocking slide buckle, which is convenient for the replacement of the disassembly and assembly cutter head.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A surface hardness detection device for a bridge steel bearing casting, comprising: The device comprises a bottom plate (1), a top plate (2) and a pair of casting slots (3), wherein the casting slot (3) is provided on the bottom plate (1), the casting slot (3) is provided on the top plate (2), a pneumatic synchronous clamping structure is installed on the bottom plate (1), and an auxiliary test cutter head (15) dragging assembly is installed on the top plate (2); The pneumatic synchronous pressing structure comprises: a bidirectional compression charging and discharging air pump (4), a connecting air pipe (5), a plurality of connecting spring columns (6), a plurality of inflatable telescopic columns (7) and a plurality of connecting air passages (8); The bidirectional compression inflation and deflation air pump (4) is installed on the top plate (2) of the device, the connecting air pipe (5) is installed on the bidirectional compression inflation and deflation air pump (4), and the connecting air pipe (5) is connected to the connecting air channel (8), a plurality of connecting air channels (8) are respectively opened in the top plate (2) of the device, a plurality of connecting spring columns (6) are respectively installed on the bottom plate (1) of the device, and a plurality of connecting spring columns (6) are respectively connected to the top plate (2) of the device, a plurality of inflatable telescopic columns (7) are respectively inserted in a plurality of connecting spring columns (6), and a plurality of inflatable telescopic columns (7) are respectively connected to a plurality of connecting air channels (8).

2. A bridge steel bearing casting surface hardness detection device according to claim 1, characterized in that: The auxiliary test cutter head (15) drag assembly comprises: a power chamber (9), a traction motor (10), a traction threaded rod (11), a traction module (12), a module inner base (13), a cutter head spring column (14) and a test cutter head (15); The power chamber (9) is mounted on the device top plate (2), the traction motor (10) is mounted in the power chamber (9), the traction threaded rod (11) is mounted in the device top plate (2), and the traction threaded rod (11) is connected to the traction motor (10), the traction module (12) is sleeved on the traction threaded rod (11), the module inner base (13) is mounted in the traction module (12), the cutter head spring column (14) is mounted on the module inner base (13), a sliding through groove is provided on the device top plate (2), the test cutter head (15) is inserted into the device top plate (2) through the sliding through groove, and the test cutter head (15) is connected to the cutter head spring column (14).

3. A bridge steel bearing casting surface hardness detection device according to claim 2, characterized in that: An anti-slip rubber pad is provided on the casting clamping slot (3).

4. A bridge steel bearing casting surface hardness detection device according to claim 3, characterized in that: The bidirectional compression charging and discharging air pump (4) is provided with an air pressure output display screen.

5. The surface hardness detection device for a bridge steel bearing casting according to claim 4 is characterized in that: The power chamber (9) is provided with a maintenance and inspection opening.

6. A bridge steel bearing casting surface hardness detection device according to claim 5, characterized in that: The test blade head (15) is provided with a replacement module.

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