Anti-explosion electric hoist

Abstract

The utility model relates to the technical field of electric hoists, and discloses an anti-explosion electric hoist which comprises an anti-explosion electric hoist body, an anti-rotation locking motor is installed on the upper portion of one side of the anti-explosion electric hoist body, and an alarm device is installed on one side of the front face of the anti-explosion electric hoist body. When the anti-rotation locking device is used, the anti-rotation locking motor is arranged, the accidental rotation phenomenon can be conveniently prevented in the operation process of an anti-explosion electric hoist main body, and when the main body rotates unexpectedly due to sudden change of equipment load or other abnormal conditions, the anti-rotation locking device can be used for locking the anti-rotation electric hoist main body. The device can quickly respond and exert a forced locking effect, ensures stable parking of a load, avoids potential safety hazards caused by accidental movement, not only improves the safety performance of equipment, but also can provide additional protection measures under complex working conditions, and improves the safety of the equipment. And the explosion-proof electric hoist main body has better reliability and stability in various high-risk operation environments.

Description

Technical Field

[0001] This utility model relates to the field of electric hoist technology, specifically to an explosion-proof electric hoist. Background Technology

[0002] Explosion-proof electric hoists are high-efficiency lifting equipment specifically designed for flammable and explosive environments. Their core design is based on explosion-proof technology, employing explosion-proof motors, explosion-proof electrical components, and special material shells to effectively prevent the risk of explosions caused by electrical sparks and high temperatures. They are suitable for hazardous locations such as petroleum, chemical, and mining industries, and feature lightweight, high strength, and corrosion resistance. Through optimized transmission structure and intelligent control system, they achieve smooth lifting, precise positioning, and low-noise operation, ensuring the safety and reliability of the equipment under extreme working conditions.

[0003] However, it still has some shortcomings. For example, ordinary explosion-proof electric hoists are prone to unexpected rotation under sudden load changes or abnormal working conditions, lack a fast-response mechanical locking mechanism, and are not adequately protected against sudden rotation of the mechanical transmission system, making it difficult to meet the stringent safety requirements of high-risk working environments.

[0004] To address the aforementioned issues, this application proposes an explosion-proof electric hoist. Utility Model Content

[0005] The purpose of this utility model is to provide an explosion-proof electric hoist to solve the problems mentioned in the background art, such as insufficient anti-rotation of explosion-proof hoists, slow mechanical locking response, and potential hazards in high-risk working conditions.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an explosion-proof electric hoist, comprising an explosion-proof electric hoist body, an anti-rotation locking motor installed on the upper side of one side of the explosion-proof electric hoist body, an alarm device installed on the front side of the explosion-proof electric hoist body, a mechanically controlled locking telescopic rod installed below the anti-rotation locking motor, a locking head fixedly connected to the lower part of the mechanically controlled locking telescopic rod, the mechanically controlled locking telescopic rod moving inside the explosion-proof electric hoist body, and an alarm conductive rod fixedly connected inside the mechanically controlled locking telescopic rod. The anti-rotation locking motor facilitates the prevention of accidental rotation during the operation of the explosion-proof electric hoist body. When sudden changes in equipment load or other abnormal conditions cause unexpected rotation of the body, the device can quickly respond and apply a forced locking action to ensure stable stopping of the load and avoid safety hazards caused by accidental movement. This device not only improves the safety performance of the equipment but also provides additional protection measures under complex working conditions, enabling the explosion-proof electric hoist body to have better reliability and stability in various high-risk working environments.

[0007] Preferably, a steel cable is installed between the explosion-proof electric hoist body and the hook pulley, a hook device is installed below the hook pulley, and an alarm light is installed on the front of the alarm device.

[0008] Preferably, an alarm horn is installed on one side of the alarm light, the electric hoist body is fixedly connected to the electric hoist drive motor on one side, the electric hoist drive motor is fixedly connected to the motor controller on the front, and a mobile driver is fixedly connected to the top of the explosion-proof electric hoist body.

[0009] Preferably, the electric hoist drive motor is fixedly connected to an internal linkage rod on one side, a locking gear is installed on the surface of the internal linkage rod, one side of the internal linkage rod is fixedly connected to a cable drum, cable limiting discs are fixedly connected to both sides of the cable drum, two sets of cable limiting discs are provided, and a steel cable is provided on the surface of the cable drum.

[0010] Preferably, the locking head is detachable above the locking gear, an infrared signal transmitter is installed inside the explosion-proof electric hoist body, and an infrared signal receiver is installed on the other side of the explosion-proof electric hoist body. The infrared signal transmitter is infraredly connected to the infrared signal receiver, and the infrared signal transmitter and the infrared signal receiver are positioned above the locking gear.

[0011] Preferably, the alarm conductive rod is movable inside the explosion-proof electric hoist body. A main power supply interface is detachably located on one side of the alarm conductive rod and installed inside the explosion-proof electric hoist body. An alarm power supply line is detachably located on the other side of the alarm conductive rod, and one side of the alarm power supply line is fixedly connected to the alarm device. When the anti-rotation locking motor is in use, the infrared signal transmitter continuously emits infrared signals to the infrared signal receiver. When the locking gear rotates normally and at a constant speed, its tooth grooves will regularly block the infrared signal, forming a stable pulse frequency. If the equipment load suddenly changes or abnormal rotation occurs, the locking gear's speed will increase abnormally, significantly increasing the frequency of infrared signal blocking. At this time, the infrared signal receiver transmits the abnormal signal to the anti-rotation locking motor. The anti-rotation locking motor immediately drives the mechanically controlled locking telescopic rod to quickly press down, causing the locking head to forcefully engage in the locking gear's tooth groove, achieving mechanical locking. Simultaneously, the alarm's conductive rod also presses down along with the mechanically controlled locking telescopic rod, connecting the circuits of the main power interface, the alarm's conductive rod, and the alarm's power supply line, triggering the alarm device and effectively preventing uncontrolled load rotation.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention, through the inclusion of an anti-rotation locking motor, effectively prevents accidental rotation during the operation of the explosion-proof electric hoist. When sudden changes in equipment load or other abnormal conditions cause unexpected rotation of the main body, the device can respond quickly and apply a forced locking action to ensure stable stopping of the load and avoid safety hazards caused by accidental movement. This device not only improves the safety performance of the equipment but also provides additional protection under complex working conditions, enabling the explosion-proof electric hoist to have better reliability and stability in various high-risk operating environments. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of an explosion-proof electric hoist according to the present invention;

[0015] Figure 2 This is a schematic diagram of the main structure of an explosion-proof electric hoist according to the present invention;

[0016] Figure 3 This is a schematic diagram of the electric hoist drive motor structure of an explosion-proof electric hoist according to the present invention.

[0017] Figure 4 This is a schematic diagram of the internal structure of the anti-rotation locking motor of an explosion-proof electric hoist according to the present invention.

[0018] In the diagram: 1. Explosion-proof electric hoist body; 2. Hook pulley; 21. Steel cable; 22. Hook device; 3. Movable driver; 4. Electric hoist drive motor; 41. Motor controller; 42. Internal linkage rod; 43. Locking gear; 44. Cable drum; 45. Cable limit plate; 5. Anti-rotation locking motor; 51. Mechanically controlled locking telescopic rod; 52. Locking head; 53. Alarm conductive rod; 6. Alarm device; 61. Alarm light; 62. Alarm horn; 63. Alarm power supply line; 7. Infrared signal transmitter; 8. Infrared signal receiver; 9. Main power supply interface. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Please see Figures 1-4An explosion-proof electric hoist includes an explosion-proof electric hoist body 1. An anti-rotation locking motor 5 is installed on one side of the top of the explosion-proof electric hoist body 1. An alarm device 6 is mounted on the front end of the explosion-proof electric hoist body 1. The output end of the anti-rotation locking motor 5 is connected to a mechanically controlled locking telescopic rod 51. A locking head 52 is fixedly installed at the end of the mechanically controlled locking telescopic rod 51. The mechanically controlled locking telescopic rod 51 is telescopically installed inside the explosion-proof electric hoist body 1. An alarm conductive rod 53 and an anti-rotation locking motor 5 are integrated in the inner cavity of the mechanically controlled locking telescopic rod 51. This design facilitates the prevention of accidental rotation during the operation of the explosion-proof electric hoist body 1. When sudden changes in equipment load or other abnormal conditions cause unexpected rotation of the body, the device can quickly respond and apply a forced locking action to ensure stable stopping of the load and avoid safety hazards caused by accidental movement. This device not only improves the safety performance of the equipment but also provides additional protection under complex working conditions, enabling the explosion-proof electric hoist body 1 to have better reliability and stability in various high-risk operating environments.

[0021] In this embodiment, as shown Figures 1-2 As shown, the explosion-proof electric hoist body 1 is connected to the hook pulley 2 via a steel cable 21. A hook device 22 is suspended from the bottom of the hook pulley 2. An alarm light 61 is arranged on the front panel of the alarm device 6. An alarm horn 62 is installed adjacent to the alarm light 61. An electric hoist drive motor 4 is fixedly installed on the side of the explosion-proof electric hoist body 1. A motor controller 41 is connected to the front end of the electric hoist drive motor 4. A mobile driver 3 is also fixedly installed on the top of the explosion-proof electric hoist body 1.

[0022] In this embodiment, as shown Figures 3-4As shown, the output shaft of the electric hoist drive motor 4 is connected to the internal linkage rod 42. A locking gear 43 is fitted around the outer periphery of the internal linkage rod 42. The end of the internal linkage rod 42 is connected to the cable drum 44. Cable limit discs 45 are fixed at both ends of the cable drum 44, with two sets of cable limit discs 45 located on opposite sides of the cable drum 44. The steel cable 21 is wound around the surface of the cable drum 44. The locking head 52 is movably positioned directly above the locking gear 43. An infrared signal transmitter 7 is installed inside the cavity of the explosion-proof electric hoist body 1, and an infrared signal receiver 8 is installed on the corresponding side. The signal transmitting end of the infrared signal transmitter 7 is aligned with the infrared signal receiver 8. The signal transmission path between the two passes through the area above the locking gear 43. The alarm conductive rod 53 can move inside the explosion-proof electric hoist body 1. One end of the alarm conductive rod 53 is connected to the main power supply interface 9, which is fixed inside the explosion-proof electric hoist body 1. The other end is connected to the alarm power supply line 63, and the other end of the alarm power supply line 63 is connected to the alarm device 6. When the anti-rotation locking motor 5 is in use, the infrared signal transmitter 7 continuously emits infrared signals to the infrared signal receiver 8. When the locking gear 43 rotates normally at a constant speed, its tooth grooves will regularly block the infrared signal, forming a stable pulse frequency. If the equipment load changes suddenly or abnormal rotation occurs, the speed of the locking gear 43 will increase abnormally, resulting in a significant increase in the frequency of infrared signal blocking. At this time, the infrared signal receiver 8 will transmit the abnormal signal to the anti-rotation locking motor 5. The anti-rotation locking motor 5 will immediately drive the mechanically controlled locking telescopic rod 51 to press down quickly, so that the locking head 52 is forcefully embedded in the tooth groove of the locking gear 43 to achieve mechanical locking. At the same time, the alarm conductive rod 53 also presses down with the mechanically controlled locking telescopic rod 51. The circuit of the main power supply interface 9, the alarm conductive rod 53, and the alarm power supply line 63 is connected, triggering the alarm device 6 to alarm, effectively preventing the load from rotating uncontrollably.

[0023] Working principle

[0024] An anti-rotation locking motor 5 for an explosion-proof electric hoist prevents accidental rotation during the operation of the hoist body 1. When sudden changes in load or other abnormal conditions cause unexpected rotation of the body, this device responds quickly and applies a forced locking action to ensure stable load stopping and avoid safety hazards caused by accidental movement. This device not only improves the safety performance of the equipment but also provides additional protection under complex working conditions, giving the explosion-proof electric hoist body 1 better reliability and stability in various high-risk operating environments. During use, the infrared signal transmitter 7 continuously transmits infrared signals to the infrared signal receiver 8. When the locking gear 43 is functioning normally... When rotating at a constant speed, its tooth grooves will regularly block the infrared signal, forming a stable pulse frequency. If the equipment load changes suddenly or abnormal rotation occurs, the locking gear 43 will rotate abnormally faster, resulting in a significant increase in the frequency of infrared signal blocking. At this time, the infrared signal receiver 8 will transmit the abnormal signal to the anti-rotation locking motor 5. The anti-rotation locking motor 5 will immediately drive the mechanically controlled locking telescopic rod 51 to press down quickly, so that the locking head 52 is forcefully embedded in the tooth groove of the locking gear 43 to achieve mechanical locking. At the same time, the alarm conductive rod 53 will also press down with the mechanically controlled locking telescopic rod 51. The circuit of the main power supply interface 9, the alarm conductive rod 53, and the alarm power supply line 63 will be connected, triggering the alarm device 6 to alarm, effectively preventing the load from rotating uncontrollably.

[0025] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. An explosion-proof electric hoist, comprising an explosion-proof electric hoist body (1), characterized in that: An anti-rotation locking motor (5) is installed on one side of the explosion-proof electric hoist body (1). An alarm device (6) is installed on one side of the front of the explosion-proof electric hoist body (1). A mechanically controlled locking telescopic rod (51) is installed below the anti-rotation locking motor (5). The mechanically controlled locking telescopic rod (51) is fixedly connected to the locking head (52) below. The mechanically controlled locking telescopic rod (51) moves inside the explosion-proof electric hoist body (1). An alarm conductive rod (53) is fixedly connected inside the mechanically controlled locking telescopic rod (51).

2. The explosion-proof electric hoist according to claim 1, characterized in that: A steel cable (21) is installed between the main body (1) of the explosion-proof electric hoist and the hook pulley (2). A hook device (22) is installed below the hook pulley (2). An alarm light (61) is installed on the front of the alarm device (6).

3. The explosion-proof electric hoist according to claim 2, characterized in that: An alarm horn (62) is installed on one side of the alarm light (61), and the electric hoist drive motor (4) is fixedly connected to one side of the explosion-proof electric hoist body (1). The electric hoist drive motor (4) is fixedly connected to the motor controller (41) on the front. A mobile driver (3) is fixedly connected to the top of the explosion-proof electric hoist body (1).

4. The explosion-proof electric hoist according to claim 3, characterized in that: The electric hoist drive motor (4) is fixedly connected to the internal linkage rod (42) on one side. The internal linkage rod (42) is equipped with a locking gear (43). The internal linkage rod (42) is fixedly connected to the cable drum (44) on one side. The cable drum (44) is fixedly connected to the cable limiting discs (45) on both sides. The cable limiting discs (45) are provided in two sets. The surface of the cable drum (44) is provided with a steel cable (21).

5. The explosion-proof electric hoist according to claim 4, characterized in that: The locking head (52) is detachable above the locking gear (43). An infrared signal transmitter (7) is installed inside the explosion-proof electric hoist body (1). An infrared signal receiver (8) is installed on the other side inside the explosion-proof electric hoist body (1). The infrared signal transmitter (7) is infraredly connected to the infrared signal receiver (8). The infrared signal transmitter (7) and the infrared signal receiver (8) are positioned above the locking gear (43).

6. The explosion-proof electric hoist according to claim 1, characterized in that: The alarm conductive rod (53) is movable inside the explosion-proof electric hoist body (1). A main power supply interface (9) is detachable on one side of the alarm conductive rod (53). The main power supply interface (9) is installed inside the explosion-proof electric hoist body (1). An alarm power supply line (63) is detachable on the other side of the alarm conductive rod (53). One side of the alarm power supply line (63) is fixedly connected to the alarm device (6).

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