Crane cross beam pressure-bearing performance detection device

Abstract

The invention discloses a crane cross beam pressure-bearing performance detection device, and particularly relates to the technical field of crane cross beam detection, the crane cross beam pressure-bearing performance detection device comprises a mounting frame and an extrusion assembly, and the extrusion assembly is located in the mounting frame and comprises a second stepping motor, a screw rod, a second sliding rod, a sliding block, a hydraulic cylinder and an extrusion plate. The second stepping motor is fixedly installed on one side of the installation frame, the end of an output shaft of the second stepping motor is fixedly connected with the lead screw, the top end of the hydraulic cylinder is fixedly connected with the sliding block, and the top end of the hydraulic cylinder is in threaded connection with the extrusion plate. The crane beam is extruded through the extrusion plate, the second stepping motor works to drive the hydraulic cylinder and the extrusion plate to horizontally move, different positions of the crane beam can be extruded, the force applied to the crane beam is detected through the dynamometer, operation is easy, the extrusion force is conveniently detected, and the detection precision is high. And the deformation data of the cross beam under different loads can be conveniently recorded and analyzed in real time.

Description

Technical Field

[0001] The present invention relates to the technical field of crane beam detection, and more specifically, to a device for detecting the bearing capacity of a crane beam. Background Art

[0002] The crane beam, also known as the lifting beam, is one of the important components of a crane, mainly responsible for carrying and transporting heavy objects. Usually, two or more hooks, electromagnetic chucks, clamps and other lifting tools are symmetrically installed on the crane beam. These lifting tools are used for lifting long-shaped materials. The crane beam is an important load-bearing component of the crane, and its bearing capacity is directly related to the safety performance of the entire crane. Through the bearing capacity detection, it is possible to timely detect whether there are defects such as deformation and cracks in the beam, thus avoiding safety accidents caused by the failure of the beam.

[0003] When detecting the existing crane beam, generally, a hydraulic cylinder is used to drive the extrusion plate to move downward, and the crane beam is extruded by the extrusion plate, so as to detect the bearing capacity of the crane beam. However, it is not convenient to detect the extrusion force, so it is difficult to record and analyze the deformation data of the beam under different loads in real time. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a device for detecting the bearing capacity of a crane beam, aiming to solve the problems raised in the above background art.

[0005] To achieve the above object, the present invention provides the following technical solution: A device for detecting the bearing capacity of a crane beam, including a mounting frame and an extrusion assembly, and the extrusion assembly is located inside the mounting frame. The extrusion assembly includes a second stepping motor, a lead screw, a second sliding rod, a slider, a hydraulic cylinder and an extrusion plate. The second stepping motor is fixedly installed on one side of the mounting frame, and the end of the output shaft of the second stepping motor is fixedly connected to the lead screw. The top of the hydraulic cylinder is fixedly connected to the slider, and the top of the hydraulic cylinder is threadedly connected to the extrusion plate. The bottom end of the mounting frame is fixedly connected to a bottom frame, and a U-shaped plate is arranged at the bottom of the bottom frame. A force detector is fixedly connected to the center position at the top inside the U-shaped plate. Both sides of the U-shaped plate are fixedly connected to support frames, and the two support frames are respectively fixedly installed on both sides of the mounting frame.

[0006] Further, both ends of the lead screw are movably connected to the mounting frame through bearings. Both ends of the second sliding rod are fixedly connected to the mounting frame, and the second sliding rod and the lead screw both penetrate through the slider.

[0007] Further, telescopic support columns are fixedly connected to the positions near the four corners at the top inside the U-shaped plate, and the tops of the four telescopic support columns are fixedly connected to the bottom frame.

[0008] It can be seen that in the above technical solution, four telescopic support columns support the bottom frame to facilitate deflection when the bottom frame moves vertically.

[0009] Further, a limiting component is arranged on the bottom frame. The limiting component includes a first stepping motor, a positive and negative lead screw, a first sliding rod and two connecting frames. The first stepping motor is fixedly installed on one side of the bottom frame, and the end of the output shaft of the first stepping motor is fixedly connected to the positive and negative lead screw.

[0010] Further, both ends of the positive and negative lead screw are movably connected to the bottom frame through bearings. Both ends of the first sliding rod are fixedly connected to the bottom frame, and both the first sliding rod and the positive and negative lead screw penetrate through the two connecting frames. The tops of the two connecting frames both extend out of the inside of the bottom frame.

[0011] Further, limiting plates are movably arranged on the opposite sides of the two connecting frames, and gaskets are fixedly connected to the opposite sides of the two limiting plates.

[0012] It can be seen that in the above technical solution, it is convenient to limit and fix the crane crossbeam.

[0013] Further, bolts are arranged on both of the two limiting plates, and the two limiting plates and the two connecting frames are respectively fixed by the two bolts.

[0014] It can be seen that in the above technical solution, it is convenient to adjust the position of the limiting plate on the connecting frame.

[0015] The technical effects and advantages of the present invention:

[0016] 1. In the present invention, the piston rod on the hydraulic cylinder extends to drive the pressing plate to move downward. The pressing plate presses the crane crossbeam. The second stepping motor works to drive the hydraulic cylinder and the pressing plate to move horizontally, so that different positions of the crane crossbeam can be pressed. At the same time, the crane crossbeam can drive the bottom frame to move downward, thereby pressing the force measuring device. The force applied by the crane crossbeam is detected by the force measuring device. The operation is simple, it is convenient to detect the pressing force, and it is convenient to record and analyze the deformation data of the crossbeam under different loads in real time;

[0017] 2. In the present invention, the first stepping motor works to drive the positive and negative lead screw to rotate. The positive and negative lead screw can drive the two connecting frames to move towards each other, thereby driving the two limiting plates and the two gaskets to move towards each other. The crane crossbeam is limited and fixed by the two limiting plates and the two gaskets. Rotate the bolt and make it away from the limiting plate, thereby releasing the fixation between the limiting plate and the connecting frame, and adjusting the position of the limiting plate on the connecting frame according to the requirements of the crane crossbeam. The structure is simple and the use is convenient. Description of the Drawings

[0018] The structures, proportions, sizes, etc. shown in this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of the present invention. Therefore, they do not have substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present invention.

[0019] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 is a bottom view of the overall structure of the present invention;

[0021] Figure 3 is a schematic diagram of the assembly structure of the U-shaped plate and the telescopic support column of the present invention;

[0022] Figure 4 is a schematic diagram of the structure of the limiting component of the present invention;

[0023] Figure 5 is a schematic diagram of the structure of the extrusion component of the present invention.

[0024] In the figure: 1, mounting frame; 2, limiting component; 3, bottom frame; 4, U-shaped plate; 5, telescopic support column; 6, force measuring device; 7, support frame; 8, extrusion component; 201, first stepping motor; 202, positive and negative lead screw; 203, first slide bar; 204, connecting frame; 205, limiting plate; 206, gasket; 207, bolt; 801, second stepping motor; 802, lead screw; 803, second slide bar; 804, slider; 805, hydraulic cylinder; 806, extrusion plate. Specific Embodiments

[0025] The following specific embodiments illustrate the implementation manners of the present invention. Those familiar with this technology can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present invention.

[0026] Refer to the attached drawings of the specification Figures 1-5, the crane beam bearing capacity detection device of this embodiment includes an installation frame 1 and a pressing assembly 8, and the pressing assembly 8 is located inside the installation frame 1. The pressing assembly 8 includes a second stepping motor 801, a lead screw 802, a second slide bar 803, a slider 804, a hydraulic cylinder 805 and a pressing plate 806. The second stepping motor 801 is fixedly installed on one side of the installation frame 1, and the end of the output shaft of the second stepping motor 801 is fixedly connected to the lead screw 802. The top of the hydraulic cylinder 805 is fixedly connected to the slider 804, and the top of the hydraulic cylinder 805 is threadedly connected to the pressing plate 806. The bottom end of the installation frame 1 is fixedly connected to a bottom frame 3. A U-shaped plate 4 is provided at the bottom of the bottom frame 3. A force detector 6 is fixedly connected to the center position at the top inside the U-shaped plate 4. Support frames 7 are fixedly connected to both sides of the U-shaped plate 4, and the two support frames 7 are respectively fixedly installed on both sides of the installation frame 1.

[0027] Furthermore, both ends of the lead screw 802 are movably connected to the installation frame 1 through bearings. Both ends of the second slide bar 803 are fixedly connected to the installation frame 1, and both the second slide bar 803 and the lead screw 802 penetrate through the slider 804. Telescopic support columns 5 are fixedly connected to the positions near the four corners at the top inside the U-shaped plate 4, and the tops of the four telescopic support columns 5 are fixedly connected to the bottom frame 3.

[0028] Furthermore, a limiting assembly 2 is provided on the bottom frame 3. The limiting assembly 2 includes a first stepping motor 201, a left-right lead screw 202, a first slide bar 203 and two connecting frames 204. The first stepping motor 201 is fixedly installed on one side of the bottom frame 3, and the end of the output shaft of the first stepping motor 201 is fixedly connected to the left-right lead screw 202. Both ends of the left-right lead screw 202 are movably connected to the bottom frame 3 through bearings. Both ends of the first slide bar 203 are fixedly connected to the bottom frame 3, and both the first slide bar 203 and the left-right lead screw 202 penetrate through the two connecting frames 204. The tops of the two connecting frames 204 both extend out of the inside of the bottom frame 3. Limiting plates 205 are movably provided on the opposite sides of the two connecting frames 204. Gaskets 206 are fixedly connected to the opposite sides of the two limiting plates 205. Bolts 207 are provided on both limiting plates 205, and the two limiting plates 205 and the two connecting frames 204 are respectively fixed by the two bolts 207.

[0029] Among them, when the crane crossbeam is placed on the top of the bottom frame 3, the first stepping motor 201 is started. The first stepping motor 201 drives the forward and reverse lead screw 202 to rotate. Since the forward and reverse lead screw 202 is threadedly connected to the two connecting frames 204 and the first slide bar 203 restricts the rotation of the two connecting frames 204, the forward and reverse lead screw 202 can drive the two connecting frames 204 to move towards each other, thereby driving the two limiting plates 205 and the two gaskets 206 to move towards each other, and the crane crossbeam is limited and fixed by the two limiting plates 205 and the two gaskets 206. Rotate the bolt 207 and move it away from the limiting plate 205, so as to release the fixation between the limiting plate 205 and the connecting frame 204, and adjust the position of the limiting plate 205 on the connecting frame 204 according to the requirements of the crane crossbeam. The structure is simple and convenient to use.

[0030] The usage method of this embodiment is as follows:

[0031] During use, place the crane crossbeam on the top of the bottom frame 3, and limit and fix the crane crossbeam through the limiting component 2. Start the hydraulic cylinder 805, and the piston rod on the hydraulic cylinder 805 extends to drive the pressing plate 806 to move downward. The pressing plate 806 presses the crane crossbeam, so that the bearing capacity of the crane crossbeam can be detected. Start the second stepping motor 801, and the second stepping motor 801 drives the lead screw 802 to rotate. Since the lead screw 802 is threadedly connected to the slider 804 and the second slide bar 803 restricts the rotation of the slider 804, the lead screw 802 can drive the slider 804 to move horizontally, thereby driving the hydraulic cylinder 805 and the pressing plate 806 to move horizontally, and different positions of the crane crossbeam can be pressed;

[0032] At the same time, the crane crossbeam can drive the bottom frame 3 to move downward, and the four telescopic support columns 5 support the bottom frame 3 to prevent the bottom frame 3 from deflecting when moving vertically, so as to press the force measuring device 6, and the force applied to the crane crossbeam by the force measuring device 6 is detected. The operation is simple, it is convenient to detect the pressing force, and it is convenient to record and analyze the deformation data of the crossbeam under different loads in real time. It should be noted that the force measuring device 6 converts the applied force into strain through an elastic element, and outputs an electrical signal by using a bridge circuit composed of resistance strain gauges.

[0033] The content not described in detail in the specification belongs to the prior art well-known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the prior art, and will not be described here again.

[0034] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Crane beam bearing performance detection device, including a mounting frame (1) and an extrusion assembly (8), and the extrusion assembly (8) is located inside the mounting frame (1), characterized in that: The extrusion assembly (8) includes a second stepping motor (801), a lead screw (802), a second slide bar (803), a slider (804), a hydraulic cylinder (805) and an extrusion plate (806). The second stepping motor (801) is fixedly installed on one side of the mounting frame (1), and the end of the output shaft of the second stepping motor (801) is fixedly connected to the lead screw (802). The top end of the hydraulic cylinder (805) is fixedly connected to the slider (804), and the top end of the hydraulic cylinder (805) is threadedly connected to the extrusion plate (806). The bottom end of the mounting frame (1) is fixedly connected to a bottom frame (3). A U-shaped plate (4) is provided at the bottom of the bottom frame (3). A force measuring device (6) is fixedly connected to the center position at the top inside of the U-shaped plate (4). Both sides of the U-shaped plate (4) are fixedly connected with support frames (7), and the two support frames (7) are respectively fixedly installed on both sides of the mounting frame (1).

2. The crane beam bearing capacity detection device according to claim 1, characterized in that: Both ends of the lead screw (802) are movably connected to the mounting frame (1) through bearings. Both ends of the second slide bar (803) are fixedly connected to the mounting frame (1), and both the second slide bar (803) and the lead screw (802) penetrate through the slider (804).

3. The crane beam bearing capacity detection device according to claim 1, characterized in that: Elongating support columns (5) are fixedly connected to the positions near the four corners at the top inside of the U-shaped plate (4), and the top ends of the four elongating support columns (5) are all fixedly connected to the bottom frame (3).

4. The crane beam bearing capacity detection device according to claim 1, characterized in that: A limiting assembly (2) is provided on the bottom frame (3). The limiting assembly (2) includes a first stepping motor (201), a forward and reverse lead screw (202), a first slide bar (203) and two connecting frames (204). The first stepping motor (201) is fixedly installed on one side of the bottom frame (3), and the end of the output shaft of the first stepping motor (201) is fixedly connected to the forward and reverse lead screw (202).

5. The crane beam bearing capacity detection device according to claim 1, characterized in that: Both ends of the forward and reverse lead screw (202) are movably connected to the bottom frame (3) through bearings. Both ends of the first slide bar (203) are fixedly connected to the bottom frame (3), and both the first slide bar (203) and the forward and reverse lead screw (202) penetrate through the two connecting frames (204). The top ends of the two connecting frames (204) both extend out of the inside of the bottom frame (3).

6. The crane beam bearing performance detection device according to claim 1, wherein: Limit plates (205) are movably provided on the opposite sides of the two connecting frames (204), and gaskets (206) are fixedly connected to the opposite sides of the two limit plates (205).

7. The crane beam bearing capacity detection device according to claim 1, characterized in that: Bolts (207) are provided on both of the two limit plates (205), and the two limit plates (205) and the two connecting frames (204) are respectively fixed by the two bolts (207).

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