Metal support compression resistance testing device

Abstract

The utility model discloses a compression resistance testing device for a metal bracket. The compression resistance testing device comprises a base, a clamping mechanism, a fixing plate and a lifting mechanism, a clamping mechanism and a fixing plate are arranged on the upper surface of the base; the clamping mechanism clamps a replaceable lower die, and a pressure sensor is arranged at the position, bearing the lower die, of the clamping mechanism. A lifting mechanism is arranged on the fixing plate; the lifting part of the lifting mechanism is connected with a replaceable upper mold, the upper mold and the lower mold are oppositely arranged, the lifting mechanism is used for controlling the upper mold to vertically move towards and away from the lower mold, and the upper mold and the lower mold are used for clamping and fixing a metal support to be tested; due to the fact that the upper die and the lower die are both replaceable, the appropriate upper die and the appropriate lower die are selected, the upper die is fixed below the lifting mechanism, and the lower die is clamped and fixed in the clamping mechanism, metal supports of different types can be conveniently used, the application range is wider, and the application range is wider.

Description

Technical Field

[0001] The utility model relates to the technical field of compression testing, in particular to a metal bracket compression testing device. Background Art

[0002] Arch, ring, and trapezoid are the three main types of metal supports. Specifically, the main types of metal supports include U-shaped steel arch retractable supports, U-shaped steel ring retractable supports, and trapezoidal retractable metal supports. In terms of the support's bearing capacity, the effect of controlling surrounding rock deformation, and retractability, the ring support is the best, followed by the arch support, and the trapezoidal support is relatively poor. In terms of the complexity of the support structure, the difficulty of support processing, installation, recycling, and tunnel section excavation, the utilization rate of the tunnel section and the cost of the support, as well as the damage to the roof and surrounding rock during support installation, the trapezoidal support is the best, followed by the arch support, and the ring support is relatively poor.

[0003] Among them, arch supports are widely used, especially when the deformation and pressure of the tunnel surrounding rock are large, the use of arch supports is more advantageous.

[0004] In addition, compression resistance refers to the strength limit when external force applies pressure. Therefore, in order to prevent accidents, compression testing of metal brackets is very important. At present, the main technical problem in the actual use of compression resistance devices is that the upper and lower molds are often fixed, making it inconvenient to use different types of metal brackets, and the scope of applicability is low and the application range is small. Utility Model Content

[0005] The purpose of the utility model is to provide a metal bracket compression test device to solve the problem that the existing compression test device has a small application range.

[0006] In order to solve the above technical problems, the utility model provides a metal bracket pressure resistance testing device, including a base, a clamping mechanism, a fixed plate and a lifting mechanism; the upper surface of the base is provided with the clamping mechanism and the fixed plate; the clamping mechanism clamps a replaceable lower mold, and the clamping mechanism is provided with a pressure sensor at the supporting position of the lower mold; the fixed plate is provided with the lifting mechanism; the lifting part of the lifting mechanism is connected to a replaceable upper mold, the upper mold and the lower mold are arranged opposite to each other, and the lifting mechanism is used to control the vertical movement of the upper mold toward and away from the lower mold, and the upper mold and the lower mold are used to clamp and fix the metal bracket to be tested.

[0007] In one embodiment, the clamping mechanism includes an outer frame, and an electric push rod, a clamp and the pressure sensor arranged in the space enclosed by the outer frame; the two electric push rods are respectively connected to the two oppositely arranged clamps, and the two electric push rods are used to control the movement of the two clamps toward and away from each other; the two clamps are used to clamp and fix the lower mold; the pressure sensor is arranged below the two clamps.

[0008] In one embodiment, both of the clamps are arc-shaped, and the concave arc surfaces of the two clamps are arranged opposite to each other.

[0009] In one embodiment, the metal bracket compression test device further includes a main support column, which is provided on a surface of the fixing plate facing away from the clamping mechanism, and is connected between the fixing plate and the base in an oblique arrangement.

[0010] In one embodiment, a main support plate is connected to the fixed plate, the main support plate is vertically connected to the fixed plate, and the lifting mechanism is provided on the main support plate.

[0011] In one embodiment, the metal bracket compression test device further includes a secondary support column, which is provided on the upper surface of the main support plate, and the secondary support column is connected between the main support plate and the fixed plate in an oblique arrangement.

[0012] In one embodiment, the lifting mechanism includes a driving motor, a threaded rod, a secondary support plate and a guide module; the output end of the driving motor is transmission-connected to the threaded rod, and the driving motor is used to drive the threaded rod to rotate; the threaded rod is arranged vertically, and the threaded rod is threadedly connected to the secondary support plate; the secondary support plate is provided with a replaceable upper mold; the guide module is connected to the secondary support plate, and the guide module is used to limit the moving trajectory of the secondary support plate to vertical movement.

[0013] In one embodiment, a connecting rod is connected to the bottom of the auxiliary support plate, and a connecting plate is connected to the bottom of the connecting rod, so that the connecting plate and the auxiliary support plate are arranged separately from each other, and the replaceable upper mold is provided on the connecting plate.

[0014] In one embodiment, the guide module includes a straight guide rail and a slider; the straight guide rail is arranged vertically on the fixed plate; the slider is slidably installed on the straight guide rail, and the slider is connected and fixed to the auxiliary support plate.

[0015] The beneficial effects of the utility model are as follows:

[0016] 1. Since both the upper mold and the lower mold are replaceable, by selecting the appropriate upper mold and lower mold, the upper mold is fixed under the lifting mechanism, and the lower mold is clamped and fixed in the clamping mechanism, which is convenient for using different types of metal brackets, with a wider range of applications;

[0017] 2. The upper mold is controlled to move downward through the lifting mechanism, so that the upper mold can apply pressure to the metal bracket, and the pressure sensor can be used to monitor relevant data to complete the pressure test of the metal bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for use in the implementation. Obviously, the drawings described below are only some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a structural diagram provided by an embodiment of the present utility model;

[0020] Figure 2 yes Figure 1 Schematic diagram of the lifting mechanism structure;

[0021] Figure 3 yes Figure 1 Schematic diagram of the clamping mechanism structure.

[0022] The reference numerals are as follows:

[0023] 10. Base; 11. Main support plate;

[0024] 20. Clamping mechanism; 21. Pressure sensor; 22. Outer frame; 23. Electric push rod; 24. Clamp;

[0025] 30. Fixed plate;

[0026] 40. Lifting mechanism; 41. Driving motor; 42. Threaded rod; 43. Connecting rod; 44. Connecting plate; 45. Straight guide rail; 46. Slider; 47. Auxiliary support plate;

[0027] 51. Lower mold; 52. Upper mold;

[0028] 61. Main support column; 62. Secondary support column. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0030] The utility model provides a metal bracket compression test device, which is implemented as follows: Figure 1 As shown, it includes a base 10, a clamping mechanism 20, a fixing plate 30 and a lifting mechanism 40.

[0031] Regarding the base 10, Figure 1 As shown, the base 10 of this embodiment is a rectangular plate structure, and a clamping mechanism 20 and a fixing plate 30 are provided on the upper surface of the base 10 to achieve the supporting and fixing function of each component.

[0032] Regarding the clamping mechanism 20, Figure 1 and Figure 3 As shown, the clamping mechanism 20 of this embodiment clamps a replaceable lower mold 51, and the clamping mechanism 20 is provided with a pressure sensor 21 at the supporting part of the lower mold 51; specifically, the clamping mechanism 20 at this time includes an outer frame 22, and an electric push rod 23, a clamp 24 and the above-mentioned pressure sensor 21 arranged in the space surrounded by the outer frame 22; the two electric push rods 23 are respectively connected to the two oppositely arranged clamps 24, and the two electric push rods 23 are used to control the movement of the two clamps 24 toward and away from each other; the two clamps 24 are both arc-shaped, and the concave arc surfaces of the two clamps 24 are arranged opposite to each other, and the clamps 24 are used to clamp and fix the lower mold 51; the pressure sensor 21 is arranged below the two clamps 24.

[0033] Therefore, when the two electric push rods 23 control the two clamps 24 to move away from each other, the lower mold 51 can be removed, and then the lower mold 51 that meets the requirements is placed between the two clamps 24. Then, the two electric push rods 23 are used to control the two clamps 24 to move toward each other, so that the lower mold 51 can be clamped and fixed.

[0034] The pressure sensor 21 is provided below the two clamps 24 . Once the compression test of the metal bracket is started, the pressure on the metal bracket will be transmitted to the pressure sensor 21 , thereby realizing the detection and acquisition of relevant pressure data.

[0035] Regarding the fixing plate 30, Figure 1 and Figure 2 As shown, the fixing plate 30 is a rectangular plate structure. The fixing plate 30 is arranged on the base 10 in a vertical manner, and a lifting mechanism 40 is provided on the fixing plate 30 .

[0036] Among them, in order to strengthen the installation firmness of the fixed plate 30, the metal bracket compression test device of this embodiment also includes a main support column 61, which is arranged on the surface of the fixed plate 30 away from the clamping mechanism 20, and the main support column 61 is connected between the fixed plate 30 and the base 10 in an oblique arrangement.

[0037] In addition, in order to realize the installation of the lifting mechanism 40 , a main support plate 11 is connected to the fixed plate 30 . The main support plate 11 is vertically connected to the fixed plate 30 , so that the lifting mechanism 40 is provided on the main support plate 11 .

[0038] Regarding the lifting mechanism 40, Figure 1 and Figure 2 As shown, the lifting part of the lifting mechanism 40 is connected to a replaceable upper mold 52, and the upper mold 52 is arranged opposite to the lower mold 51. The lifting mechanism 40 is used to control the vertical movement of the upper mold 52 toward and away from the lower mold 51. The upper mold 52 and the lower mold 51 are used to clamp and fix the metal bracket to be tested.

[0039] Specifically, the lifting mechanism 40 at this time includes a drive motor 41, a threaded rod 42, a secondary support plate 47 and a guide module; the output end of the drive motor 41 is transmission-connected to the threaded rod 42, and the drive motor 41 is used to drive the threaded rod 42 to rotate; the threaded rod 42 is arranged vertically, and the threaded rod 42 is threadedly connected to the secondary support plate 47; a replaceable upper mold 52 is provided on the secondary support plate 47; the guide module is connected to the secondary support plate 47, and the guide module is used to limit the moving trajectory of the secondary support plate 47 to vertical movement.

[0040] Among them, a connecting rod 43 is connected to the bottom of the auxiliary support plate 47, and a connecting plate 44 is connected to the bottom of the connecting rod 43, so that the connecting plate 44 and the auxiliary support plate 47 are arranged separately from each other, and a replaceable upper mold 52 is provided on the connecting plate 44; and the guide module includes a straight guide rail 45 and a slider 46; the straight guide rail 45 is arranged vertically on the fixed plate 30; the slider 46 is slidably installed on the straight guide rail 45, and the slider 46 is connected and fixed to the auxiliary support plate 47.

[0041] After adopting the above-mentioned setting method, if it is necessary to control the upper mold 52 to move up and down, it is only necessary to use the drive motor 41 to control the threaded rod 42 to rotate, and then under the limiting action of the guide module, the slider 46, the auxiliary support plate 47, the connecting rod 43, the connecting plate 44, and the upper mold 52 will be able to move up and down together, thereby meeting the movement control requirements of the upper mold 52.

[0042] And if Figure 2 As shown, the metal bracket compression test device of this embodiment also includes a secondary support column 62, which is arranged on the upper surface of the main support plate 11. The secondary support column 62 is connected between the main support plate 11 and the fixed plate 30 in an oblique arrangement, thereby strengthening the connection strength between the main support plate 11 and the fixed plate 30.

[0043] In summary, the application methods of the present invention are roughly as follows:

[0044] 1. Test the shape of the metal bracket as needed and select the appropriate upper mold 52 and lower mold 51. The upper mold 52 can be installed on the connecting plate 44 using screws, and the lower mold 51 can be clamped and fixed using the clamping mechanism 20;

[0045] 2. The lifting mechanism 40 controls the upper mold 52 to move downward, thereby applying pressure to the metal bracket. The pressure sensor 21 detects the current stress condition of the metal bracket, thereby achieving a compression test of the metal bracket.

[0046] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A metal bracket compression test device, characterized in that: It includes a base, a clamping mechanism, a fixing plate and a lifting mechanism; The upper surface of the base is provided with the clamping mechanism and the fixing plate; The clamping mechanism clamps a replaceable lower mold, and the clamping mechanism is provided with a pressure sensor at a position supporting the lower mold; The lifting mechanism is provided on the fixed plate; The lifting part of the lifting mechanism is connected to a replaceable upper mold, and the upper mold is arranged opposite to the lower mold. The lifting mechanism is used to control the vertical movement of the upper mold toward and away from the lower mold. The upper mold and the lower mold are used to clamp and fix the metal bracket to be tested.

2. The metal support compression test device according to claim 1, characterized in that: The clamping mechanism includes an outer frame, and an electric push rod, a clamp and the pressure sensor arranged in a space surrounded by the outer frame; The two electric push rods are respectively connected to the two oppositely arranged clamps, and the two electric push rods are used to control the two clamps to move toward and away from each other; The two clamps are used to clamp and fix the lower mold; The pressure sensor is arranged below the two clamps.

3. The metal bracket compression test device according to claim 2, characterized in that: The two clamps are both arc-shaped, and the concave arc surfaces of the two clamps are arranged opposite to each other.

4. The metal bracket compression test device according to claim 1, characterized in that: The metal bracket compression test device also includes a main support column, which is arranged on the surface of the fixing plate away from the clamping mechanism, and the main support column is connected between the fixing plate and the base in an oblique arrangement.

5. The metal bracket compression test device according to claim 1, characterized in that: The fixing plate is connected to a main support plate, the main support plate is vertically connected to the fixing plate, and the lifting mechanism is provided on the main support plate.

6. The metal support compression test device according to claim 5, characterized in that: The metal bracket compression test device further includes a secondary support column, which is provided on the upper surface of the main support plate and is connected between the main support plate and the fixing plate in an oblique arrangement.

7. The metal support compression test device according to claim 1, characterized in that: The lifting mechanism includes a driving motor, a threaded rod, a secondary support plate and a guide module; The output end of the driving motor is in transmission connection with the threaded rod, and the driving motor is used to drive the threaded rod to rotate; The threaded rod is arranged vertically, and the threaded rod is threadedly connected to the auxiliary support plate; The auxiliary support plate is provided with a replaceable upper mold; The guide module is connected to the auxiliary support plate, and the guide module is used to limit the movement trajectory of the auxiliary support plate to vertical movement.

8. The metal support compression test device according to claim 7, characterized in that: A connecting rod is connected below the auxiliary support plate, and a connecting plate is connected below the connecting rod, so that the connecting plate and the auxiliary support plate are arranged separately from each other, and the replaceable upper mold is provided on the connecting plate.

9. The metal support compression test device according to claim 7, characterized in that: The guide module includes a straight guide rail and a slider; The straight guide rail is arranged on the fixed plate in a vertical manner; The slider is slidably mounted on the straight guide rail, and the slider is fixedly connected to the auxiliary support plate.

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