Belt roller locking device applied to belt elevator

Abstract

The belt roller locking device applied to the belt elevator comprises a frame, a roller shaft and a belt roller, the roller shaft is arranged on the frame through a bearing assembly, and the belt roller is arranged on the roller shaft in a sleeved mode and can rotate along with the roller shaft. The device further comprises an electrical control system and a locking device connected with the electrical control system, locking groove holes are formed in the ends of the belt rollers and distributed in the circumferential direction of the belt rollers, and the locking device is fixed to the frame and corresponds to the locking groove holes. The locking device comprises a locking pin, an electric cylinder and a detection switch, the locking pin is connected to the output end of the electric cylinder, and the locking pin can be inserted into or away from the locking groove hole under the action of the electric cylinder. The device is simple in structure, convenient to operate, high in positioning precision and locking efficiency, high in safety coefficient and high in automation degree.

Description

Technical Field

[0001] The utility model relates to the technical field of belt elevators, in particular to a belt roller locking device applied to a belt elevator. Background Art

[0002] At present, the roller locking device of a belt elevator mainly adopts a manual locking scheme. Its function is to prevent accidents caused by the rotation of the belt roller when the brake of the lifting motor fails, playing a role of secondary protection.

[0003] However, since the driving device of the elevator is generally designed at the top, when locking, it is necessary for workers to climb above the driving frame to lock the locking device. During operation, facilities such as safety ropes, working-at-height certificates, and safety warning signs need to be configured. The risk coefficient of working at height for personnel is high, and professional certified personnel are required for operation, which is time-consuming and laborious. Summary of the Utility Model

[0004] Aiming at the above problems, the utility model provides a belt roller locking device applied to a belt elevator, which is convenient to operate, has high positioning accuracy, high locking efficiency, high safety factor, and high degree of automation.

[0005] The utility model is realized through the following technical solutions: A belt roller locking device applied to a belt elevator, comprising a frame, a roller shaft, and a belt roller. The roller shaft is arranged on the frame through a bearing assembly, and the belt roller is sleeved on the roller shaft and can rotate with the roller shaft.

[0006] In order to realize the automatic locking of the belt roller, improve the safety of the roller locking operation of the belt elevator, and at the same time improve the positioning accuracy and locking efficiency, the belt roller locking device applied to the belt elevator further comprises an electrical control system and a locking device connected to the electrical control system. A locking slot is opened at the end of the belt roller, and the locking slots are distributed along the circumferential direction of the belt roller. The locking device is fixed on the frame and is arranged corresponding to the locking slots. The locking device comprises a locking pin, an electric cylinder, and a detection switch. The locking pin is connected to the output end of the electric cylinder. Under the instruction issued by the corresponding program in the electrical control system, the locking pin can be inserted into or away from the locking slot under the action of the electric cylinder, so as to realize the locking or unlocking of the roller. The detection switch is used to detect and confirm whether the locking pin extends or retracts, and feeds back to the electrical control system to judge whether the locking is in place.

[0007] Preferably, there are two detection switches to ensure the detection accuracy.

[0008] In order to improve the locking reliability, there are two groups of locking slots opened at both ends of the belt roller, and two groups of locking devices are arranged corresponding to the locking slots.

[0009] To further improve the locking reliability, preferably, the locking slot holes are waist-shaped long slot holes and are evenly distributed along the circumferential direction of the belt roller. According to the actual situation, locking slot holes of other shapes can also be designed.

[0010] To further improve the safety of the entire device, a protective net is provided on one side of the belt roller locking device applied to the belt lifter close to the locking device.

[0011] The beneficial effects of the present utility model are as follows: The belt roller locking device applied to the belt lifter realizes the automatic locking of the belt roller in the belt lifter through the design of an electrical control system and a locking device connected to the electrical control system, replacing the method of manually climbing above the driving frame to lock the locking device in the prior art, greatly improving the operation safety, and at the same time improving the convenience and efficiency of locking; by designing two groups of locking devices to cooperate with the locking slots at both ends of the belt roller, the locking reliability is improved; in addition, the belt roller locking device of the belt lifter has a simple and reliable structure and a high degree of automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural diagram of the belt roller locking device applied to the belt lifter of the present utility model;

[0013] Figure 2 is a schematic structural diagram of the belt roller locking device applied to the belt lifter of the present utility model after hiding the protective net;

[0014] Figure 3 is Figure 2 a partial enlarged schematic view of point A of

[0015] In the figure: 1. Frame; 2. Roller shaft; 3. Belt roller; 31. Locking slot hole; 4. Bearing seat; 5. Locking device; 51. Locking pin; 52. Electric cylinder; 53. Detection switch; 6. Protective net. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The following elaborates on the preferred embodiments of the present utility model in detail with reference to the accompanying drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making the protection scope of the present utility model more clearly defined.

[0017] Such as Figure 1-2A belt drum locking device applied to a belt lifter, including a frame 1, a drum shaft 2, and a belt drum 3. The drum shaft 2 is arranged on the frame 1 through a bearing seat 4. The belt drum 3 is sleeved on the drum shaft 2 and can rotate with the drum shaft 2. It also includes an electrical control system and two groups of locking devices 5 connected to the electrical control system. A protective net 6 is provided on one side of the entire belt drum locking device applied to the belt lifter close to the locking device 5.

[0018] As Figure 3 shown, a locking slot hole 31 is provided in a circle at both ends of the belt drum 3. The locking slot hole 31 is an oblong long slot hole and is evenly distributed along the circumferential direction of the belt drum 3. The two groups of locking devices 5 are fixed on the frame 1 and are respectively arranged corresponding to the locking slot holes 31 at both ends. The locking device 5 includes a locking pin 51, an electric cylinder 52, and two detection switches 53. The locking pin 51 is connected to the output end of the electric cylinder 52. Under the instruction issued by the corresponding program in the electrical control system, the locking pin 51 can be inserted into or away from the locking slot hole 31 under the action of the electric cylinder 52.

[0019] The working principle of the belt drum locking device applied to the belt lifter is as follows:

[0020] The lifting motor brake is engaged, and the belt drum 3 stops rotating accordingly. At this time, it is necessary to lock the belt drum 3 to prevent the brake from failing. When locking, the output end of the electric cylinder 52 extends, driving the locking pin 51 to insert into the locking slot hole 31 of the belt drum 3, thereby locking the belt drum 3. After locking in place, the detection switch 53 sends a locking-in-place signal to the electrical control system to confirm that the locking is in place.

[0021] In all the examples shown and described here, any specific value should be construed as merely exemplary, not as a limitation. Therefore, other examples of the exemplary embodiments may have different values.

[0022] It should be noted that: Similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0023] In addition, in the description of the embodiments of the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection", "setting", "providing", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0024] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model 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. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0025] The above-described embodiments only represent several implementation manners of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation to the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model.

Claims

1. A belt drum locking device applied to a belt lift, comprising a frame, a drum shaft, and a belt drum. The drum shaft is arranged on the frame through a bearing assembly, and the belt drum is sleeved on the drum shaft and can rotate with the drum shaft. It is characterized in that: It further includes an electric control system and a locking device connected to the electric control system. A locking slot hole is provided at the end of the belt roller, and the locking slot holes are distributed along the circumferential direction of the belt roller. The locking device is fixed on the frame and is arranged corresponding to the locking slot holes. The locking device includes a locking pin, a detection switch and an electric cylinder. The locking pin is connected to the output end of the electric cylinder. Under the instruction issued by the corresponding program in the electric control system, the locking pin can be inserted into or away from the locking slot hole under the action of the electric cylinder, so as to lock or loosen the belt roller.

2. The belt drum locking device applied to a belt elevator according to claim 1, characterized in that: There are two groups of the locking slot holes and they are provided at both ends of the belt roller. There are two groups of the locking devices and they are arranged corresponding to the locking slot holes.

3. The belt drum locking device applied to a belt lift according to claim 2, characterized in that: The locking slot hole is a kidney-shaped long slot hole and is evenly distributed along the circumferential direction of the belt roller.

4. The belt drum locking device applied to a belt elevator according to claim 1, characterized in that: There are two detection switches.

5. The belt drum locking device applied to a belt elevator according to claim 1, characterized in that: A protective net is provided on one side of the entire belt roller locking device applied to the belt lifter close to the locking device.

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