Visual slab gravity clamp rotation monitoring device

Abstract

The utility model discloses a slab gravity clamp rotation visual monitoring device which comprises a slab gravity clamp, the slab gravity clamp comprises a cross beam, a clamp body is arranged on the lower portion of the cross beam, a rotation opening and closing mechanism corresponding to the clamp body is arranged in the middle of the cross beam, the rotation opening and closing mechanism is used for controlling opening and closing of the clamp body, and the cross beam is connected with the slab gravity clamp. A through hole is formed in the cross beam, a rotating shaft is arranged in the through hole, the lower end of the rotating shaft is fixedly connected with the rotary opening and closing mechanism, and the upper end of the rotating shaft penetrates through the through hole and is exposed above the cross beam; a rotating pointer perpendicular to the rotating shaft is horizontally arranged at the upper end of the rotating shaft and used for feeding back the rotating angle of the rotating opening and closing mechanism. The rotary clamp is simple in structure and convenient to operate, and by improving the rotary opening and closing mechanism of the rotary clamp body and installing the synchronous rotary pointer position display feedback device, a crane operator can visually observe the rotation state of the rotary opening and closing mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of slab clamps, in particular to a rotation visual monitoring device for a slab gravity clamp. Background Art

[0002] The slab gravity clamp works by the middle opening and closing mechanism, which is installed on the crossbeam. When preparing to clamp the steel billet, the crane aligns the clamp with the middle position of the slab, the middle crossbeam descends, and the clamp is closed by the opening and closing mechanism. When the lifting mechanism rises, the crossbeam drives the clamp and the slab to rise together, completing a lifting process. The automatic gravity opening and closing device is a key component of the slab clamp. It is required to ensure the entire clamping and loosening process of the slab clamp. The automatic gravity closer device consists of three parts: base, fixed pin shaft and automatic opening and closing tongue. When the hook and crossbeam rise, the opening and closing mechanism tongue automatically rotates 90° and is vertically opened with the slot. When the bottom of the clamp is placed on the surface of the billet, the tongue slides on the fixed pin and automatically rotates 45°. When the crane rises, the opening and closing tongue rotates 45° in the slot again. At this time, the opening and closing tongue is parallel to the slot. As the crane rises, the opening and closing tongue leaves the slot, and the clamp arm gradually closes to complete the billet clamping operation.

[0003] During this operation, there are problems:

[0004] 1. The ground of the stacking place is uneven, and the billets are tilted when placed. When the clamp is placed on it without loading, the tongue of the opening and closing mechanism cannot be well matched vertically with the base slot, causing the tongue to rotate less than 90° and not rotate in place. The tongue cannot be smoothly put into or out of the slot, causing the clamp to be unable to open or close normally;

[0005] 2. During the use of the opening and closing mechanism, the tongue part is subjected to long-term friction, rotation and wear. When running without load, the tongue and the slot will be disengaged due to the vibration of the vehicle running, and the lower arm of the clamp will be straightened, causing great impact and vibration, and it is also easy to cause damage to the ground and equipment, which poses certain safety risks;

[0006] The ground height of the driving cab is about 8 meters, and the operator cannot visually judge the state of the opening and closing mechanism through the field of vision. The on-site working conditions are not suitable for confirming the whole process of lifting each steel billet. In order to solve the above problems, a visual monitoring device for rotating the slab gravity clamp is proposed. Summary of the invention

[0007] The purpose of the utility model is to solve the above problems and provide a visual monitoring device for the rotation of a slab gravity clamp.

[0008] The specific solution of the present utility model is: a slab gravity clamp rotary visual monitoring device, comprising: a slab gravity clamp, the slab gravity clamp includes: a cross beam, a clamp body is provided below the cross beam, a rotary opening and closing mechanism corresponding to the clamp body is provided in the middle of the cross beam, the rotary opening and closing mechanism is used to control the opening and closing of the clamp body, a through hole is provided on the cross beam, a rotary shaft is provided in the through hole, the lower end of the rotary shaft is fixedly connected to the rotary opening and closing mechanism, and the upper end of the rotary shaft passes through the through hole and is exposed above the cross beam; a rotary pointer perpendicular to it is horizontally provided at the upper end of the rotary shaft, and the rotary pointer is used to feedback the rotation angle of the rotary opening and closing mechanism.

[0009] Further, the middle of the rotary shaft is fixedly connected to the rotary pointer.

[0010] Further, a position sensor is provided on the cross beam, the position sensor is provided with a signal line, and the signal line is connected to a display screen for feedbacking the real-time rotation angle of the rotary opening and closing mechanism.

[0011] Further, the aperture of the through hole is φ30 to φ50 mm, and the diameter of the rotary shaft is 0.75 to 0.9 times the diameter of the through hole.

[0012] Further, connection seats are provided at both ends of the cross beam, and connection ears are provided on the connection seats, and the connection ears are used to connect to external devices.

[0013] The present utility model has the following beneficial effects:

[0014] (1) By improving the rotary opening and closing mechanism of the rotary clamp body and installing a synchronous rotary pointer position display feedback device, the crane operator can intuitively observe the rotation state of the rotary opening and closing mechanism;

[0015] (2) The structure of the present utility model is simple. Compared with the previous opening and closing mechanism, only a synchronous shaft and a set of pointer feedback devices are added, and the cost is small, which solves the risks existing in production operations;

[0016] (3) By reducing the risk of straightening the clamp body, the equipment failure rate and various risks caused are well controlled. Description of the Drawings

[0017] Figure 1 is the structural schematic diagram of the present utility model Figure 1 ;

[0018] Figure 2 is the structural schematic diagram of the present utility model Figure 2 ;

[0019] In the figure: 1. Cross beam; 2. Rotary opening and closing mechanism; 3. Clamp body; 4. Rotary shaft; 5. Rotary pointer; 6. Position sensor; 7. Signal wire; 8. Display screen; 9. Connecting seat; 10. Connecting ear. Detailed implementation mode

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work belong to the scope of protection of the present invention.

[0021] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0022] In addition, if there are descriptions such as "first", "second", etc. involved in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or a solution where A and B are satisfied simultaneously. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0023] Please refer to Figure 1 - Figure 2 , a slab gravity clamp rotary visual monitoring device, comprising: a slab gravity clamp, and the slab gravity clamp includes: a cross beam 1, a clamp body 3 is arranged below the cross beam 1, a rotary opening and closing mechanism 2 corresponding to the clamp body 3 is arranged in the middle of the cross beam 1, the rotary opening and closing mechanism 2 is used to control the opening and closing of the clamp body 3, a through hole is arranged on the cross beam 1, a rotary shaft 4 is arranged in the through hole, the lower end of the rotary shaft 4 is fixedly connected with the rotary opening and closing mechanism 2, and the upper end of the rotary shaft 4 passes through the through hole and is exposed above the cross beam 1; a rotary pointer 5 perpendicular to it is horizontally arranged at the upper end of the rotary shaft 4, and the rotary pointer 5 is used to feedback the rotation angle of the rotary opening and closing mechanism 2.

[0024] In this embodiment, the rotating shaft 4 is fixedly connected to the middle of the rotating pointer 5.

[0025] In this embodiment, a position sensor 6 is provided on the cross beam 1. The position sensor 6 is provided with a signal line 7, and the signal line 7 is connected to the display screen 8 for feeding back the real-time rotation angle of the rotary opening and closing mechanism 2.

[0026] In this embodiment, the aperture of the through hole is φ30 to φ50 millimeters, and the diameter of the rotating shaft 4 is 0.75 to 0.9 times the diameter of the through hole.

[0027] In this embodiment, connection seats 9 are provided at both ends of the cross beam 1. Connection ears 10 are provided on the connection seats 9, and the connection ears 10 are used for connecting to external devices.

[0028] The utility model has the following beneficial effects:

[0029] (1) By improving the rotary opening and closing mechanism of the rotary clamp body 3 and installing a synchronous rotation pointer 5 position display and feedback device, the traveling crane operator can intuitively observe the rotation state of the rotary opening and closing mechanism 2.

[0030] (2) The structure of the utility model is simple. Compared with the previous opening and closing mechanism, only one synchronous shaft and a set of pointer feedback devices are added, and the cost is low, solving the risks existing in production operations.

[0031] (3) By reducing the risk of the clamp body 3 being straightened, the equipment failure rate and various risks caused are well controlled.

Claims

1. A slab gravity clamp rotation visual monitoring device, comprising: The slab gravity clamp comprises: a crossbeam, a clamp body is provided on the crossbeam and below the crossbeam, a rotating opening and closing mechanism corresponding to the clamp body is provided in the middle of the crossbeam, and the rotating opening and closing mechanism is used to control the opening and closing of the clamp body, and is characterized in that: a through hole is provided on the crossbeam, a rotating shaft is provided in the through hole, the lower end of the rotating shaft is fixedly connected to the rotating opening and closing mechanism, and the upper end of the rotating shaft passes through the through hole and is exposed above the crossbeam; a rotating pointer is horizontally provided at the upper end of the rotating shaft and is perpendicular to it, and the rotating pointer is used to feedback the rotation angle of the rotating opening and closing mechanism.

2. The slab gravity clamp rotation visual monitoring device according to claim 1, characterized in that: The rotating shaft is fixedly connected to the middle part of the rotating pointer.

3. The slab gravity clamp rotation visual monitoring device according to claim 1, characterized in that: A position sensor is provided on the crossbeam. The position sensor is provided with a signal line. The signal line is connected to the display screen and is used to feed back the real-time rotation angle of the rotary opening and closing mechanism.

4. The visual monitoring device for rotation of a slab gravity clamp according to claim 1 is characterized in that: The aperture of the through hole is φ30 to φ50 mm, and the diameter of the rotating shaft is 0.75 to 0.9 times the diameter of the through hole.

5. The visual monitoring device for rotation of slab gravity clamps according to claim 1 is characterized by: Connecting seats are provided at both ends of the crossbeam, and connecting ears are provided on the connecting seats. The connecting ears are used to connect with external equipment.

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