Overspeed sudden stop protection device for descending of crane

Abstract

The utility model discloses an overspeed scram protection device for descending of a crane, which belongs to the technical field of overspeed scram protection devices of cranes and is characterized by comprising a winding drum body, a connecting block is fixedly connected to the left side of the winding drum body, and a protection component is fixedly connected to the surface of the connecting block. The left side of the protection assembly is fixedly connected with a detection assembly; the protection assembly comprises a mounting block, the right side of the mounting block is rotationally connected with the left side of a connecting block, the right side of the mounting block is rotationally connected with an annular block, the inner wall of the annular block is fixedly connected with the surface of the connecting block, and the front side and the rear side of the mounting block are fixedly connected with fixing blocks. When the crane is used, a winding drum in the crane is easily influenced by the weight of goods to rotate, and when the winding drum rotates, the goods can quickly descend, so that the goods fall and the use safety of the crane is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of overspeed emergency stop protection devices for cranes, in particular to an overspeed emergency stop protection device for crane descent. Background Art

[0002] A crane is a mechanical device used to lift, lower and move heavy objects. They are widely used in industries such as construction, manufacturing, transportation and ports to handle and move large objects or materials. Cranes mainly include lifting mechanisms, running mechanisms, luffing mechanisms, slewing mechanisms and metal structures.

[0003] When the existing crane is lifting, the weight of the cargo easily causes the internal drum to rotate. When the drum rotates, the cargo will drop rapidly, causing the cargo to fall and reducing the safety of the crane. Therefore, an overspeed emergency stop protection device for crane descent is proposed. Utility Model Content

[0004] The utility model provides an overspeed emergency stop protection device for crane descent, aiming to solve the problem that when the existing crane is lifting, the weight of the goods easily causes the internal drum to rotate, and when the drum rotates, the goods will drop rapidly, thus causing the goods to fall and reducing the safety of the crane.

[0005] The utility model is implemented as follows: an overspeed emergency stop protection device for a crane descent comprises a drum body, a connecting block is fixedly connected to the left side of the drum body, a protection component is fixedly connected to the surface of the connecting block, and a detection component is fixedly connected to the left side of the protection component;

[0006] The protection component includes a mounting block, the right side of the mounting block is rotatably connected to the left side of the connecting block, the right side of the mounting block is rotatably connected to an annular block, the inner wall of the annular block is fixedly connected to the surface of the connecting block, the front and rear sides of the mounting block are fixedly connected to fixed blocks, the right side of the fixed block is fixedly connected to an electric brake caliper, a guide hole is opened on the left side of the annular block, and a detection block is fixedly connected to the inner wall of the guide hole.

[0007] In order to detect the rotation of the drum body through the detection block, as a preferred overspeed emergency stop protection device for crane descent of the utility model, the detection component includes a T-shaped bracket, the right side of the T-shaped bracket is fixedly connected to the left side of the mounting block, and a mounting hole is opened on the left side of the T-shaped bracket, and a speed sensor is fixedly connected to the inner wall of the mounting hole.

[0008] In order to assist in guiding the installation position of the connecting block, as a preferred overspeed emergency stop protection device for crane descent of the utility model, a through hole is opened on the left side of the annular block, and the inner wall of the through hole is fixedly connected to the surface of the connecting block.

[0009] In order to fix the electric brake caliper, as a preferred overspeed emergency stop protection device for crane descent of the utility model, there are eight fixing blocks in total, and the other four fixing blocks are located on the right side of the electric brake caliper, and the front and rear sides of the fixing blocks are fixedly connected to the side opposite to the drum body.

[0010] In order to provide a detection point for the speed sensor, as a preferred overspeed emergency stop protection device for crane descent of the utility model, the detection block is set to be circular, and the position of the detection block and the position of the speed sensor are in the same horizontal plane, and the detection block is used in conjunction with the speed sensor.

[0011] In order to receive the detection data of the speed sensor and open and close the electric brake caliper, as a preferred overspeed emergency stop protection device for crane descent of the utility model, a controller is fixedly connected to the bottom of the T-shaped bracket, and the right side of the controller is fixedly connected to the left side of the mounting block, and the controller is used in conjunction with the electric brake caliper and the speed sensor.

[0012] In order to warn people around to stay away, as a preferred overspeed emergency stop protection device for crane descent of the utility model, a sound and light alarm is fixedly connected to the left side of the T-shaped bracket. There are two sound and light alarms in total, and the sound and light alarms are used in conjunction with the controller.

[0013] In order to reinforce the speed sensor, as a preferred overspeed emergency stop protection device for crane descent of the utility model, a reinforcement ring is fixedly connected to the surface of the speed sensor, and the right side of the reinforcement ring is fixedly connected to the left side of the T-shaped bracket.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The overspeed emergency stop protection device for the descent of the crane is configured with a drum body, a connecting block, a protection component and a detection component. The configuration of the drum body can drive the connecting block to rotate, and the configuration of the connecting block can drive the protection component to rotate. In cooperation with the protection component and the detection component, the detection component can detect the rotation speed of the drum body through the protection component, and the configuration of the protection component can make an emergency stop on the drum body through the connecting block, thereby avoiding the rotation of the drum and the falling of the goods due to the influence of the goods. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is an overall structural diagram of the overspeed emergency stop protection device for the crane descent;

[0017] Figure 2 For this utility model Figure 1 Front view of

[0018] Figure 3 This is a schematic diagram of the connection between the reel body and the connecting block in the utility model;

[0019] Figure 4 It is a structural schematic diagram of the protection component in the utility model;

[0020] Figure 5 It is a structural schematic diagram of the detection component in the utility model.

[0021] In the figure, 1, reel body; 2, connecting block; 3, protection assembly; 301, mounting block; 302, annular block; 303, fixing block; 304, electric brake caliper; 305, guide hole; 306, detection block; 4, detection assembly; 401, T-shaped bracket; 402, mounting hole; 403, speed sensor; 5, through hole; 6, controller; 7, sound and light alarm; 8, reinforcement ring. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0024] See also Figure 1-5 The utility model provides a technical solution: an overspeed emergency stop protection device for a crane descent, comprising a drum body 1, a connecting block 2 is fixedly connected to the left side of the drum body 1, a protection component 3 is fixedly connected to the surface of the connecting block 2, and a detection component 4 is fixedly connected to the left side of the protection component 3;

[0025] The protection component 3 includes a mounting block 301, the right side of the mounting block 301 is rotatably connected to the left side of the connecting block 2, the right side of the mounting block 301 is rotatably connected to an annular block 302, the inner wall of the annular block 302 is fixedly connected to the surface of the connecting block 2, the front and rear sides of the mounting block 301 are fixedly connected to a fixing block 303, the right side of the fixing block 303 is fixedly connected to an electric brake caliper 304, a guide hole 305 is opened on the left side of the annular block 302, and the inner wall of the guide hole 305 is fixedly connected to a detection block 306.

[0026] In this embodiment: by setting the reel body 1, the connecting block 2, the protection component 3 and the detection component 4, the reel body 1 can be set so that it can drive the connecting block 2 to rotate, and the connecting block 2 can be set so that it can drive the protection component 3 to rotate, and with the cooperation of the protection component 3 and the detection component 4, the detection component 4 can detect the rotation speed of the reel body 1 through the protection component 3, and the protection component 3 can be set so that the reel body 1 can be stopped urgently through the connecting block 2, so as to avoid the reel from rotating and causing the goods to fall due to the influence of the goods.

[0027] As a technical optimization solution of the utility model, the detection component 4 includes a T-shaped bracket 401, the right side of the T-shaped bracket 401 is fixedly connected to the left side of the mounting block 301, a mounting hole 402 is opened on the left side of the T-shaped bracket 401, and a speed sensor 403 is fixedly connected to the inner wall of the mounting hole 402.

[0028] In this embodiment: by setting up the detection component 4, the T-shaped bracket 401 can be configured to cooperate with the mounting hole 402, so that the speed sensor 403 can be fixed, and under the guidance of the mounting hole 402, the installation position of the speed sensor 403 can be auxiliary guided, and the speed sensor 403 can be configured to cooperate with the detection block 306, so that the rotation speed of the reel body 1 can be detected through the detection block 306.

[0029] As a technical optimization solution of the present invention, a through hole 5 is opened on the left side of the annular block 302 , and the inner wall of the through hole 5 is fixedly connected to the surface of the connecting block 2 .

[0030] In this embodiment, the through hole 5 is provided to assist in guiding the installation position of the connection block 2 .

[0031] As a technical optimization solution of the utility model, there are eight fixed blocks 303 in total, and the other four fixed blocks 303 are located on the right side of the electric brake caliper 304, and the front and rear sides of the fixed blocks 303 are fixedly connected to the side opposite to the reel body 1.

[0032] In this embodiment, by setting the fixing block 303 , the electric brake caliper 304 can be fixed via the mounting block 301 and the reel body 1 , thereby improving the use stability of the electric brake caliper 304 .

[0033] As a technical optimization solution of the present invention, the detection block 306 is set to be circular, and the position of the detection block 306 and the position of the speed sensor 403 are in the same horizontal plane, and the detection block 306 and the speed sensor 403 are used in conjunction with each other.

[0034] In this embodiment, by setting the detection block 306 , the detection block 306 can provide a detection point for the speed sensor 403 by cooperating with the speed sensor 403 .

[0035] As a technical optimization solution of the utility model, a controller 6 is fixedly connected to the bottom of the T-shaped bracket 401 , the right side of the controller 6 is fixedly connected to the left side of the mounting block 301 , and the controller 6 is used in conjunction with the electric brake caliper 304 and the speed sensor 403 .

[0036] In this embodiment: by setting up the controller 6, the controller 6 can be set to receive the detection data of the speed sensor 403, and when the detection data is abnormal, the electric brake caliper 304 is opened and closed by the controller 6.

[0037] As a technical optimization solution of the present invention, a sound and light alarm 7 is fixedly connected to the left side of the T-shaped bracket 401 . There are two sound and light alarms 7 in total, and the sound and light alarms 7 are used in conjunction with the controller 6 .

[0038] In this embodiment, by setting the sound and light alarm 7, the sound and light alarm 7 can be controlled by the controller 6 to prompt abnormal data, thereby warning the surrounding people to stay away.

[0039] As a technical optimization solution of the present invention, a reinforcement ring 8 is fixedly connected to the surface of the speed sensor 403 , and the right side of the reinforcement ring 8 is fixedly connected to the left side of the T-shaped bracket 401 .

[0040] In this embodiment, by providing the reinforcement ring 8 , the speed sensor 403 can be reinforced through the T-shaped bracket 401 , thereby improving the use stability of the speed sensor 403 .

[0041] Working principle: First, start the drum body 1 to lift the goods. When the goods drop due to weight, the drum body 1 can be quickly reversed by the drive of the goods, and when the drum body 1 reverses, it can drive the connecting block 2 to rotate, and then the annular block 302 can be rotated by the drive of the connecting block 2. Then, the detection block 306 can be quickly rotated by the drive of the annular block 302, and the detection block 306 can be detected by the speed sensor 403. The abnormality at this time can be transmitted to the controller 6, and then the electric brake caliper 304 can be started by the control of the controller 6. Then, the electric brake caliper 304 can stop the annular block 302, and through the connection between the annular block 302 and the connecting block 2, the connecting block 2 stops rotating, and driven by the connecting block 2, the reversal of the drum body 1 can be stopped, and then the crane can be inspected by stopping the electric brake caliper 304 until the inspection is completed, and then the electric brake caliper 304 can be reset.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions 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. An overspeed emergency stop protection device for crane descent, comprising a drum body (1), characterized in that: A connection block (2) is fixedly connected to the left side of the reel body (1), a protection component (3) is fixedly connected to the surface of the connection block (2), and a detection component (4) is fixedly connected to the left side of the protection component (3); The protection component (3) comprises a mounting block (301), the right side of the mounting block (301) is rotatably connected to the left side of the connecting block (2), the right side of the mounting block (301) is rotatably connected to an annular block (302), the inner wall of the annular block (302) is fixedly connected to the surface of the connecting block (2), the front and rear sides of the mounting block (301) are fixedly connected to fixing blocks (303), the right side of the fixing block (303) is fixedly connected to an electric brake caliper (304), the left side of the annular block (302) is provided with a guide hole (305), and the inner wall of the guide hole (305) is fixedly connected to a detection block (306).

2. The overspeed emergency stop protection device for crane descent according to claim 1 is characterized in that: The detection assembly (4) comprises a T-shaped bracket (401), the right side of the T-shaped bracket (401) is fixedly connected to the left side of the mounting block (301), a mounting hole (402) is provided on the left side of the T-shaped bracket (401), and a speed sensor (403) is fixedly connected to the inner wall of the mounting hole (402).

3. The overspeed emergency stop protection device for crane descent according to claim 1 is characterized in that: A through hole (5) is provided on the left side of the annular block (302), and the inner wall of the through hole (5) is fixedly connected to the surface of the connecting block (2).

4. The overspeed emergency stop protection device for crane descent according to claim 1 is characterized in that: There are eight fixed blocks (303) in total, and the other four fixed blocks (303) are located on the right side of the electric brake caliper (304). The front and rear sides of the fixed blocks (303) are fixedly connected to the side opposite to the reel body (1).

5. The overspeed emergency stop protection device for crane descent according to claim 1 is characterized in that: The detection block (306) is set to be circular, and the position of the detection block (306) and the position of the speed sensor (403) are located in the same horizontal plane, and the detection block (306) and the speed sensor (403) are used in conjunction with each other.

6. The overspeed emergency stop protection device for crane descent according to claim 2 is characterized in that: A controller (6) is fixedly connected to the bottom of the T-shaped bracket (401), the right side of the controller (6) is fixedly connected to the left side of the mounting block (301), and the controller (6) is used in conjunction with the electric brake caliper (304) and the speed sensor (403).

7. The overspeed emergency stop protection device for crane descent according to claim 2 is characterized in that: The left side of the T-shaped bracket (401) is fixedly connected with a sound and light alarm (7), two sound and light alarms (7) are provided in total, and the sound and light alarms (7) are used in conjunction with the controller (6).

8. The overspeed emergency stop protection device for crane descent according to claim 2 is characterized in that: A reinforcement ring (8) is fixedly connected to the surface of the speed sensor (403), and the right side of the reinforcement ring (8) is fixedly connected to the left side of the T-shaped bracket (401).

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