Monitoring and limiting device of crane

Abstract

The utility model provides a monitoring and limiting device of a crane, and belongs to the technical field of cranes. The monitoring and limiting device of the crane comprises a mounting frame and a monitoring and limiting mechanism, a fixing plate is arranged on the right side of the mounting frame, a mounting plate is mounted on the right side of the fixing plate, a through hole is formed in the top of the mounting plate, a mounting groove is formed in the inner wall of the through hole, a limiting plate is mounted in an inner cavity of the through hole, and a monitoring assembly is mounted on the inner wall of the mounting groove. By arranging the monitoring and limiting mechanism, when a user enables a rope to penetrate through the monitoring and limiting mechanism, the monitoring and limiting mechanism can monitor and limit the position of the rope, so that the rope can be conveniently limited, the rope can be stably wound and unwound, and the mounting seat can be mounted after the mounting shaft is mounted; and after a user starts the electric push rod, the electric push rod pushes the fixing plate through the sliding block, and the fixing plate is inclined to guide the rope.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, and more specifically, to a monitoring and limiting device for a crane. Background Art

[0002] As the main vertical transportation machinery in the construction environment, the crane undertakes the hoisting tasks of the main structure of the project and large materials and equipment. Due to the large hoisting height and range, its hoisting device and luffing device usually adopt a multi-layer winding method to meet the winding length of the wire rope. Although the layer return angle of the wire rope and the positioning problem during the wire rope winding process are fully considered in the design.

[0003] However, the existing cranes lack a monitoring and limiting structure during use, resulting in situations such as the wire rope shifting during operations such as winding the rope, which causes the wire rope to squeeze and shift the wire rope winding device of the crane when it shifts, damaging the winding device. Summary of the Utility Model

[0004] To make up for the above deficiencies, the utility model provides a monitoring and limiting device for a crane that overcomes the above technical problems or at least partially solves the above problems.

[0005] The utility model is implemented as follows:

[0006] The utility model provides a monitoring and limiting device for a crane, including a mounting frame. A fixing plate is provided on the right side of the mounting frame, and a mounting plate is installed on the right side of the fixing plate, and there are two groups of mounting plates.

[0007] A monitoring and limiting mechanism, which includes:

[0008] A through hole is opened at the top of the mounting plate and penetrates to the bottom of the mounting plate.

[0009] A mounting groove is opened on the inner wall of the through hole.

[0010] A limiting plate is installed in the inner cavity of the through hole.

[0011] A monitoring component is installed on the inner wall of the mounting groove.

[0012] In a preferred solution, the monitoring component includes an infrared distance sensor, and the infrared distance sensor is installed on the inner wall of the mounting groove. A first spring is installed on the inner wall of the mounting groove, and the right end of the first spring is connected to the left side of the limiting plate.

[0013] In a preferred solution, a guiding plate is installed on the top of the limiting plate, and the surface of the guiding plate is arc-shaped.

[0014] In a preferred embodiment, a connecting plate is installed on the right side of the mounting bracket, a connecting shaft is installed on the right side of the connecting plate, and the right side of the connecting shaft is connected to the fixing plate.

[0015] In a preferred embodiment, a support plate is installed on the right side of the mounting bracket, and the right side of the support plate is in contact with the left side of the fixing plate.

[0016] In a preferred embodiment, a mounting shaft is installed on the right side of the mounting bracket, a mounting seat is installed on the right side of the mounting shaft, and an electric push rod is installed on the inner wall of the mounting seat.

[0017] In a preferred embodiment, a sliding block is installed at the free end of the electric push rod, a sliding groove is formed on the left side of the fixing plate, and the sliding block is slidably engaged with the sliding groove.

[0018] In a preferred embodiment, side plates are installed on the right side of the fixing plate, and there are two groups of side plates. Guide wheels are rotatably installed inside the support plate.

[0019] A monitoring and limiting device for a crane provided by the present utility model has the following beneficial effects:

[0020] 1. By providing a monitoring and limiting mechanism, when the user passes the rope through the monitoring and limiting mechanism, the monitoring and limiting mechanism can monitor and limit the position of the rope, thereby facilitating the limiting of the rope and enabling the stable retraction and extension of the rope.

[0021] 2. By providing a mounting shaft, a mounting seat, an electric push rod, a sliding block, and a sliding groove, the mounting seat can be installed after the mounting shaft is installed, so that the mounting seat can install the electric push rod. When the user starts the electric push rod, the electric push rod can push the fixing plate through the sliding block, and then the fixing plate is tilted to guide the rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 is the overall three-dimensional view provided by the embodiment of the present utility model;

[0024] Figure 2 is the three-dimensional side view structural schematic diagram provided by the embodiment of the present utility model;

[0025] Figure 3 Schematic three-dimensional structure diagram of the mounting base provided by the embodiment of the present utility model;

[0026] Figure 4 Schematic three-dimensional sectional structure diagram of the mounting plate provided by the embodiment of the present utility model;

[0027] In the figure: 1, mounting frame; 2, fixing plate; 3, mounting plate; 4, monitoring and limiting mechanism; 41, through hole; 42, mounting groove; 43, limiting plate; 44, monitoring component; 441, infrared distance sensor; 442, first spring; 5, guiding plate; 6, connecting plate; 7, connecting shaft; 8, supporting plate; 9, mounting shaft; 10, mounting base; 11, electric push rod; 12, sliding block; 13, sliding groove; 14, side plate; 15, guiding wheel. Specific embodiments

[0028] In order to make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0029] Refer to Figures 1 - 4 , the present utility model provides a technical solution: a monitoring and limiting device for a crane, including a mounting frame 1 and a monitoring and limiting mechanism 4. A fixing plate 2 is provided on the right side of the mounting frame 1, and a mounting plate 3 is installed on the right side of the fixing plate 2, and there are two groups of mounting plates 3. When the user passes the rope through the monitoring and limiting mechanism 4, the monitoring and limiting mechanism 4 can monitor and limit the position of the rope, so as to facilitate the limiting of the rope and enable the stable winding and unwinding of the rope.

[0030] Refer to Figures 1 - 4, in a preferred embodiment, by providing a monitoring and limiting mechanism 4, the monitoring and limiting mechanism 4 includes a through hole 41, a mounting groove 42, a limiting plate 43 and a monitoring component 44. The through hole 41 is opened at the top of the mounting plate 3 and penetrates to the bottom of the mounting plate 3. The mounting groove 42 is opened on the inner wall of the through hole 41. The limiting plate 43 is installed in the inner cavity of the through hole 41, and the monitoring component 44 is installed on the inner wall of the mounting groove 42. After the through hole 41 is opened, the mounting groove 42 can be opened, which is convenient for installing the monitoring component 44 into the mounting groove 42. The limiting plate 43 provided in the through hole 41 can limit the rope passing through the through hole 41. The monitoring component 44 includes an infrared distance sensor 441, and the infrared distance sensor 441 is installed on the inner wall of the mounting groove 42. A first spring 442 is installed on the inner wall of the mounting groove 42, and the right end of the first spring 442 is connected to the left side of the limiting plate 43, which can enable the infrared distance sensor 441 to detect the position of the limiting plate 43 after installation. When the rope squeezes the limiting plate 43, the limiting plate 43 moves towards the infrared distance sensor 441, and the first spring 442 can squeeze the limiting plate 43 so that the limiting plate 43 can reset after being squeezed. A guiding plate 5 is installed on the top of the limiting plate 43, and the surface of the guiding plate 5 is arc-shaped, which can guide the rope with an arc-shaped surface.

[0031] Refer to Figure 1 , in a preferred embodiment, a connecting plate 6 is installed on the right side of the mounting frame 1. A connecting shaft 7 is installed on the right side of the connecting plate 6, and the right side of the connecting shaft 7 is connected to the fixing plate 2, which can enable the connecting plate 6 to install the connecting shaft 7 after installation, facilitating the connection of the connecting plate 6 and the fixing plate 2 through the connecting shaft 7 and enabling the installation of the fixing plate 2. A supporting plate 8 is installed on the right side of the mounting frame 1, and the right side of the supporting plate 8 is in contact with the left side of the fixing plate 2, which can enable the supporting plate 8 to support the fixing plate 2 after installation and facilitate the limitation of the inclination direction of the fixing plate 2.

[0032] Refer to Figures 1 - 3, in a preferred embodiment, an installation shaft 9 is installed on the right side of the mounting bracket 1, a mounting seat 10 is installed on the right side of the installation shaft 9, and an electric push rod 11 is installed on the inner wall of the mounting seat 10. A sliding block 12 is installed at the free end of the electric push rod 11. A sliding groove 13 is formed on the left side of the fixing plate 2, and the sliding block 12 is in sliding fit with the sliding groove 13, which can install the mounting seat 10 after the installation shaft 9 is installed, facilitate the installation of the electric push rod 11 on the mounting seat 10, and then facilitate the user to drive the sliding block 12 to move after starting the electric push rod 11, so that the sliding block 12 moves in the sliding groove 13, can push the fixing plate 2. At the same time, a side plate 14 is installed on the right side of the fixing plate 2, and there are two groups of side plates 14. A guide wheel 15 is rotatably installed on the inner side of the side plate 14, which can install the guide wheel 15 after the side plate 14 is installed, facilitate the guide wheel 15 to guide the rope. Furthermore, when the rope contacts and rubs against the fixing plate 2, the rope will be damaged.

[0033] Specifically, the working process or working principle of the monitoring and limiting device of the crane is as follows: when in use, the user passes the rope through the through hole 41, so that the rope fits on the surfaces of the limiting plate 43 and the guiding plate 5. When the rope in the through hole 41 deviates, it can squeeze the limiting plate 43, so that the limiting plate 43 squeezes the first spring 442, and the infrared distance measuring sensor 441 in the installation groove 42 can detect the limiting plate 43, and can detect the deviation angle of the rope in real time. And the user can start the electric push rod 11, so that the electric push rod 11 pushes the fixing plate 2 through the sliding block 12, and the fixing plate 2 can rotate around the connecting shaft 7, which is convenient for guiding the rope, so as to facilitate the use of rope guiding.

[0034] It should be noted that the infrared distance measuring sensor 441 and the electric push rod 11 are devices or equipment existing in the prior art, or devices or equipment that can be realized by the prior art. Their power supply, specific composition and principle are clear to those skilled in the art, so no further details will be given.

Claims

1. A monitoring and limiting device for a crane, comprising a mounting frame (1), characterized in that: A fixing plate (2) is provided on the right side of the mounting frame (1), a mounting plate (3) is installed on the right side of the fixing plate (2), and two groups of mounting plates (3) are provided; The monitoring and limiting mechanism (4) comprises: A through hole (41), wherein the through hole (41) is opened at the top of the mounting plate (3), and the through hole (41) penetrates to the bottom of the mounting plate (3); A mounting groove (42), wherein the mounting groove (42) is formed on the inner wall of the through hole (41); A limiting plate (43), wherein the limiting plate (43) is installed in the inner cavity of the through hole (41); A monitoring component (44) is installed on the inner wall of the installation groove (42).

2. A monitoring and limiting device for a crane according to claim 1, characterized in that: The monitoring component (44) comprises an infrared distance measuring sensor (441), and the infrared distance measuring sensor (441) is installed on the inner wall of the installation groove (42), and a first spring (442) is installed on the inner wall of the installation groove (42), and the right end of the first spring (442) is connected to the left side of the limit plate (43).

3. A monitoring and limiting device for a crane according to claim 1, characterized in that: A guide plate (5) is installed on the top of the limiting plate (43), and the surface of the guide plate (5) is arranged in an arc shape.

4. A monitoring and limiting device for a crane according to claim 1, characterized in that: A connecting plate (6) is installed on the right side of the mounting frame (1), a connecting shaft (7) is installed on the right side of the connecting plate (6), and the right side of the connecting shaft (7) is connected to the fixing plate (2).

5. The monitoring and limiting device of a crane according to claim 1, characterized in that: A support plate (8) is installed on the right side of the mounting frame (1), and the right side of the support plate (8) is in contact with the left side of the fixing plate (2).

6. A monitoring and limiting device for a crane according to claim 1, characterized in that: A mounting shaft (9) is mounted on the right side of the mounting frame (1), a mounting seat (10) is mounted on the right side of the mounting shaft (9), and an electric push rod (11) is mounted on the inner wall of the mounting seat (10).

7. A monitoring and limiting device for a crane according to claim 6, characterized in that: A sliding block (12) is installed at the free end of the electric push rod (11), a sliding groove (13) is opened on the left side of the fixed plate (2), and the sliding block (12) and the sliding groove (13) are slidably matched.

8. The monitoring and limiting device for a crane according to claim 5, characterized in that: A side plate (14) is installed on the right side of the fixed plate (2), and two groups of side plates (14) are provided. A guide wheel (15) is rotatably installed on the inner side of the support plate (8).

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