An explosion-proof hoist with built-in motor

Abstract

The present invention discloses a motor-mounted explosion-proof hoist, which belongs to the technical field of hoists, and comprises a drum, an explosion-proof motor is arranged in the drum, the output end of the explosion-proof motor is connected with a speed reducing mechanism, the output end of the speed reducing mechanism is connected with the inner wall of the drum, one end of the explosion-proof motor away from the output end is connected with a support member, a first bearing is sleeved on the support member, a second bearing is sleeved on the speed reducing mechanism, the outer side of the first bearing is connected with the inner wall of the drum, the outer side of the second bearing is connected with the inner wall of the drum, and the output end of the speed reducing mechanism is connected with the inner wall of the drum. The force on the drum of the present invention acts on the speed reducing mechanism and the support member, and when the hoist is working, the surface of the explosion-proof motor is not subjected to the force of the wire rope or chain, and the internal parts of the explosion-proof motor will not be directly affected, so that the explosion-proof motor and the drum are not easily damaged, and the service life is long and the safety is good.

Description

Technical Field

[0001] The invention belongs to the technical field of hoists, in particular to an explosion-proof hoist with a built-in motor. Background Art

[0002] Hoists are large-scale mechanical equipment that transports goods by changing potential energy. They use power machinery to drag flexible wire ropes and the goods being transported up and down to complete the transportation process, thereby achieving lifting or pulling heavy objects. In the process of using existing motor-mounted hoists to lift objects, the force of the wire rope or chain will directly act on the explosion-proof motor through the drum, which can easily affect the internal parts of the explosion-proof motor, causing damage to the explosion-proof motor and affecting its service life and safety.

[0003] Therefore, the present invention provides an explosion-proof hoist with a motor built in to solve the problems raised in the above background technology. Summary of the invention

[0004] The purpose of the present invention is to provide a motor-mounted explosion-proof hoist to solve the following technical problems:

[0005] When the motor-mounted hoist in the prior art lifts an object, the force of the wire rope or chain will directly act on the explosion-proof motor through the drum, which can easily affect the internal parts of the explosion-proof motor, causing damage to the explosion-proof motor and affecting its service life and safety.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A motor-mounted explosion-proof hoist comprises a drum, wherein an explosion-proof motor is arranged inside the drum, wherein the output end of the explosion-proof motor is connected to a reduction mechanism, wherein the output end of the reduction mechanism is connected to the inner wall of the drum, wherein one end of the explosion-proof motor away from the output end is connected to a support member, wherein a first bearing is sleeved on the support member, wherein a second bearing is sleeved on the reduction mechanism, wherein the outer side of the first bearing is connected to the inner wall of the drum, the outer side of the second bearing is connected to the inner wall of the drum, and the output end of the reduction mechanism is connected to the inner wall of the drum.

[0008] As a further solution of the present invention: the central axis of the reel coincides with the central axis of the output end of the speed reduction mechanism, so that the reel rotates more smoothly.

[0009] As a further solution of the present invention: a third bearing is provided on the side of the drum close to the speed reduction mechanism, a shaft of a second support shaft seat is sleeved in the third bearing, and the end of the support member away from the explosion-proof motor is connected to the first support shaft seat, so that the hoist is more stable when working.

[0010] As a further solution of the present invention: the explosion-proof motor is an explosion-proof permanent magnet synchronous explosion-proof motor, which has high efficiency, high power factor, small temperature rise, small size, light weight, few consumables and a relatively simple structure, and can reduce processing and assembly costs.

[0011] As a further solution of the present invention: the explosion-proof motor is provided with a heat exchange pipe, the outlet and the inlet of the heat exchange pipe are both in the liquid tank, and the heat exchange pipe is provided with a pump, which can improve the heat dissipation performance of the explosion-proof motor and avoid the explosion-proof motor working at high temperature, thereby improving the working efficiency of the explosion-proof motor and extending the service life of the explosion-proof motor.

[0012] As a further solution of the present invention: the explosion-proof motor is also provided with a temperature sensor for monitoring the temperature of the explosion-proof motor, so as to facilitate the control box and the staff to monitor the temperature of the explosion-proof motor, and then enable the control box and the staff to determine whether it is necessary to dissipate heat for the explosion-proof motor.

[0013] As a further solution of the present invention: the pump has three output gears, namely, the first gear of the pump, the second gear of the pump, and the third gear of the pump. The power of the first gear of the pump is less than the power of the second gear of the pump, which is less than the power of the third gear of the pump. The output gear of the pump can be selected according to the actual temperature of the explosion-proof motor to reduce energy consumption.

[0014] As a further solution of the present invention: a heating system and a cooling system are provided in the liquid tank, which can selectively heat or dissipate heat according to the actual temperature of the explosion-proof motor, so that the explosion-proof motor is always in a suitable temperature range, thereby improving the working efficiency of the explosion-proof motor and extending the service life of the explosion-proof motor.

[0015] As a further solution of the present invention: a control box is also provided on the liquid tank, and the control box can control the output gear of the pump, control the switch of the heating system, and control the switch of the refrigeration system, so that the staff can conveniently control the output gear of the pump, the switch of the heating system, and the switch of the refrigeration system in a unified manner, and it is also convenient to set the control logic or control program to uniformly control the output gear of the pump, the switch of the heating system, and the switch of the refrigeration system.

[0016] As a further solution of the present invention: the control box controls the output gear of the pump, the switch of the heating system and the switch of the refrigeration system with reference to the threshold values ​​T0, T1, T2 and T3 of the temperature of the explosion-proof motor, wherein T0 is less than T1, less than T2 and less than T3, including the following method:

[0017] Step 1: Read the temperature of the explosion-proof motor;

[0018] Step 2: Determine whether the temperature of the explosion-proof motor is greater than T3, otherwise proceed to step 3, if yes, start the third gear of the pump and the refrigeration system, and again determine whether the temperature of the explosion-proof motor is greater than T3, until the temperature of the explosion-proof motor is less than or equal to T3, and then proceed to step 3;

[0019] Step 3: Determine whether the temperature of the explosion-proof motor is greater than T2, otherwise proceed to step 4, if yes, start the second gear of the pump and the refrigeration system, and again determine whether the temperature of the explosion-proof motor is greater than T2, until the temperature of the explosion-proof motor is less than or equal to T2, and then proceed to step 4;

[0020] Step 4: Determine whether the temperature of the explosion-proof motor is greater than T1, otherwise proceed to step 5, if yes, start the first gear of the pump and the refrigeration system, and again determine whether the temperature of the explosion-proof motor is greater than T1, until the temperature of the explosion-proof motor is less than or equal to T1, and proceed to step 5;

[0021] Step 5: Determine whether the temperature of the explosion-proof motor is less than T0, otherwise turn off the pump, the heating system and the refrigeration system, if yes, turn on the first gear of the pump and the heating system, and again determine whether the temperature of the explosion-proof motor is less than T0, until the temperature of the explosion-proof motor is greater than or equal to T0, and turn off the pump, the heating system and the refrigeration system.

[0022] The control method can realize automatic temperature control of explosion-proof motors.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The explosion-proof motor does not generate electric sparks when running, so the hoist can be used in flammable and explosive places and has a wide range of applications.

[0025] 2. When the hoist is working, the drum speed needs to be low and the torque is large, so a motor with low speed and high torque is needed. However, the motor with low speed and high torque is large in size and high in cost. Connecting a reduction mechanism at the output end of the explosion-proof motor is beneficial to reducing the size of the explosion-proof motor and reducing the cost of the explosion-proof motor.

[0026] 3. The first bearing sleeve is arranged on the support, and the second bearing sleeve is arranged on the reduction mechanism. The outer sides of the first bearing and the second bearing are connected to the inner wall of the drum. There is no direct connection between the explosion-proof motor and the drum. When the hoist is working, the force on the drum acts on the reduction mechanism and the support. The surface of the explosion-proof motor is not affected by the force of the wire rope or chain, and will not directly affect the internal parts of the explosion-proof motor, so that the explosion-proof motor is not easily damaged, has a long service life and good safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0028] Figure 1 This is a schematic diagram of the structure of a motor-mounted explosion-proof hoist;

[0029] Figure 2 A flow chart showing the flow of controlling the output gear of the pump, the switch of the heating system and the switch of the refrigeration system.

[0030] In the figure: 1. reel; 2. explosion-proof motor; 3. support; 4. first bearing; 5. reduction mechanism; 6. second bearing; 7. third bearing; 8. first support shaft seat; 9. second support shaft seat; 10. heat exchange pipe; 11. pump; 12. liquid tank; 13. heating system; 14. refrigeration system; 15. control box; 16. transmission hub; 17. fourth bearing; 18. fifth bearing; 19. support plate; 20. energy absorption box; 21. web plate. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention, that is, the embodiments described are only part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0033] See also Figure 1-2 In an embodiment of the present invention, a motor-mounted explosion-proof hoist includes a drum 1, an explosion-proof motor 2 is arranged in the drum 1, the output end of the explosion-proof motor 2 is connected to a reduction mechanism 5, the output end of the reduction mechanism 5 is connected to the inner wall of the drum 1, the end of the explosion-proof motor 2 away from the output end is connected to a support member 3, a first bearing 4 is sleeved on the support member 3, a second bearing 6 is sleeved on the reduction mechanism 5, the outer side of the first bearing 4 is connected to the inner wall of the drum 1, the outer side of the second bearing 6 is connected to the inner wall of the drum 1, and the output end of the reduction mechanism 5 is connected to the inner wall of the drum 1.

[0034] In Example 1, please refer to Figure 1-2The output end of the reduction mechanism 5 is connected to the transmission hub 16, and the transmission hub 16 is connected to the inner wall of the drum 1. When the hoist is working, the power of the explosion-proof motor 2 is transmitted to the transmission hub 16 through the reduction mechanism 5, and the transmission hub 16 transmits the power to the drum 1. The drum 1 starts to rotate and pulls the heavy object through a wire rope or a chain. Since the first bearing 4 is sleeved on the support member 3 and the second bearing 6 is sleeved on the reduction mechanism 5, the outer side of the first bearing 4 and the outer side of the second bearing 6 are both connected to the inner wall of the drum 1. Therefore, when the drum 1 starts to rotate, the explosion-proof motor 2 does not rotate, and the force of the wire rope or the chain will not directly act on the explosion-proof motor 2, so that the service life is long and the safety is good.

[0035] In this embodiment, the output end of the speed reduction mechanism 5 is connected to the transmission hub 16, the transmission hub 16 is connected to the inner wall of the reel 1, the power of the explosion-proof motor 2 is transmitted to the transmission hub 16 through the speed reduction mechanism 5, and the transmission hub 16 transmits the power to the reel 1. Alternatively, the output end of the speed reduction mechanism 5 is connected to the transmission hub 16, the transmission hub 16 is connected to the inner wall of the circular ring structure in the reel 1, the power of the explosion-proof motor 2 is transmitted to the transmission hub 16 through the speed reduction mechanism 5, the transmission hub 16 transmits the power to the circular ring structure in the reel 1, and the circular ring structure transmits the power to the reel 1.

[0036] In this embodiment, the central axis of the reel 1 coincides with the central axis of the output end of the speed reduction mechanism 5, so that the reel 1 rotates more smoothly.

[0037] In this embodiment, a third bearing 7 is provided on the side of the drum 1 close to the reduction mechanism 5, and the shaft of the second support shaft seat 9 is sleeved in the third bearing 7. The end of the support member 3 away from the explosion-proof motor 2 is connected to the first support shaft seat 8, so that the hoist is more stable when working.

[0038] In this embodiment, the explosion-proof motor 2 is a permanent magnet synchronous explosion-proof motor 2. The permanent magnet synchronous explosion-proof motor has high efficiency, high power factor, small temperature rise, small size, light weight, few consumables and a relatively simple structure, which can reduce processing and assembly costs.

[0039] In this embodiment, a heat exchange pipe 10 is provided on the explosion-proof motor 2, and the outlet and inlet of the heat exchange pipe 10 are both in the liquid tank 12. A pump 11 is provided on the heat exchange pipe 10, which can improve the heat dissipation performance of the explosion-proof motor 2 and prevent the explosion-proof motor 2 from working at high temperature, thereby improving the working efficiency of the explosion-proof motor 2 and extending the service life of the explosion-proof motor 2.

[0040] In this embodiment, a temperature sensor (not shown in the figure) is also provided on the explosion-proof motor 2, which is used to monitor the temperature of the explosion-proof motor 2, making it convenient for the control box 15 and the staff to monitor the temperature of the explosion-proof motor 2, and then enable the control box 15 and the staff to determine whether the explosion-proof motor 2 needs to be cooled.

[0041] In this embodiment, the pump 11 has three output gears, namely the first gear of the pump 11, the second gear of the pump 11, and the third gear of the pump 11. The power of the first gear of the pump is less than the power of the second gear of the pump, which is less than the power of the third gear of the pump. The output gear of the pump 11 can be selected according to the actual temperature of the explosion-proof motor 2 to reduce energy consumption.

[0042] In this embodiment, a heating system 13 and a cooling system 14 are provided in the liquid tank 12, which can select heating or heat dissipation according to the actual temperature of the explosion-proof motor 2, so that the explosion-proof motor 2 is always in a suitable temperature range, thereby improving the working efficiency of the explosion-proof motor 2 and extending the service life of the explosion-proof motor 2.

[0043] In this embodiment, a control box 15 is also provided on the liquid tank 12. The control box 15 can control the output gear of the pump 11, control the switch of the heating system 13, and control the switch of the refrigeration system 14, so that the staff can conveniently control the output gear of the pump 11, the switch of the heating system 13, and the switch of the refrigeration system 14 in a unified manner, and it is also convenient to set the control logic or control program to uniformly control the output gear of the pump 11, the switch of the heating system 13, and the switch of the refrigeration system 14.

[0044] In this embodiment, T0, T1, T2, and T3 can be input and set in the control box 15.

[0045] In this embodiment, there is enough liquid in the liquid box 12.

[0046] In this embodiment, when the temperature of the explosion-proof motor 2 is higher than the appropriate temperature of the explosion-proof motor 2, the refrigeration system 14 is manually turned on to cool the liquid in the liquid tank 12 to a temperature lower than the temperature of the explosion-proof motor 2, and then the pump 11 is manually turned on to enable the liquid in the heat exchange pipe 10 to quickly dissipate the temperature of the explosion-proof motor 2 from the explosion-proof motor 2, so that the temperature of the explosion-proof motor 2 reaches a suitable temperature range; when the temperature of the explosion-proof motor 2 is lower than the suitable temperature of the explosion-proof motor 2, the heating system 13 is manually turned on to heat the liquid in the liquid tank 12 to a temperature higher than the temperature of the explosion-proof motor 2, and then the pump 11 is manually turned on to enable the liquid in the heat exchange pipe 10 to quickly transfer the temperature of the liquid to the explosion-proof motor 2, so that the temperature of the explosion-proof motor 2 reaches a suitable temperature range. Making the explosion-proof motor 2 work in a suitable temperature range is conducive to improving the working efficiency of the explosion-proof motor 2 and extending the service life of the explosion-proof motor 2.

[0047] In this embodiment, the explosion-proof motor 2 is provided with a fourth bearing 17 and a fifth bearing 18, and the outer surfaces of the fourth bearing 17 and the fifth bearing 18 are connected by a support plate 19, and the support plate 19 is annular, and an energy absorption box 20 is provided between the support plate 19 and the drum 1. The energy absorption box 20 is a thin-walled metal component, which is easy to plastically deform during a collision, and the energy absorption box 20 absorbs the energy of the collision during the plastic deformation. When the hoist is in a strong collision, the drum 1 is plastically deformed, and the energy absorption box 20 can absorb part of the impact force, protect the explosion-proof motor 2 from damage, extend the service life of the explosion-proof motor 2, reduce the impact force of the explosion-proof motor 2, and improve safety.

[0048] In this embodiment, the second bearing 6 and the inner wall of the drum 1 are connected by a web plate 21. The third bearing 7 and the inner wall of the drum 1 are connected by a web plate 21. There is a buffer space between the drum 1 and the explosion-proof motor 2, and the drum 1 will not directly hit the explosion-proof motor 2 when it is hit.

[0049] In this embodiment, the web 21 is made of high-strength steel, so that the reel 1 can resist strong impact.

[0050] In Example 2, please refer to Figure 1-2 , the temperature of the explosion-proof motor 2 is controlled by the control box 15. The other structures are the same as those in the first embodiment.

[0051] In this embodiment, the temperature of the explosion-proof motor 2 is adjusted by using a control box 15 in combination with a temperature sensor on the explosion-proof motor 2. The temperature sensor transmits a measured temperature signal to the control box 15. The control box 15 controls the output gear of the pump 11, controls the switch of the heating system 13, and controls the switch of the refrigeration system 14 according to the temperature measured by the temperature sensor, thereby realizing automatic temperature control of the explosion-proof motor 2.

[0052] In this embodiment, the temperature sensor may be a wired temperature sensor or a wireless temperature sensor with a built-in battery.

[0053] In this embodiment, the control box 15 controls the output gear of the pump 11, the switch of the heating system 13, and the switch of the refrigeration system 14. The control method controls the output gear of the pump 11, the switch of the heating system 13, and the switch of the refrigeration system 14 with reference to the threshold values ​​T0, T1, T2, and T3 of the temperature of the explosion-proof motor 2. T0 is less than T1, less than T2, and less than T3, and includes the following steps:

[0054] Step 1: Read the temperature of the explosion-proof motor 2;

[0055] Step 2: Determine whether the temperature of the explosion-proof motor 2 is greater than T3, otherwise proceed to step 3, if yes, start the third gear of the pump and the refrigeration system 14, and again determine whether the temperature of the explosion-proof motor 2 is greater than T3, until the temperature of the explosion-proof motor 2 is less than or equal to T3, and then proceed to step 3;

[0056] Step 3: Determine whether the temperature of the explosion-proof motor 2 is greater than T2, otherwise proceed to step 4, if yes, start the second gear of the pump and the refrigeration system 14, and again determine whether the temperature of the explosion-proof motor 2 is greater than T2, until the temperature of the explosion-proof motor 2 is less than or equal to T2, and then proceed to step 4;

[0057] Step 4: Determine whether the temperature of the explosion-proof motor 2 is greater than T1, otherwise proceed to step 5, if yes, start the first gear of the pump and the refrigeration system 14, and again determine whether the temperature of the explosion-proof motor 2 is greater than T1, until the temperature of the explosion-proof motor 2 is less than or equal to T1, and proceed to step 5;

[0058] Step 5: Determine whether the temperature of the explosion-proof motor 2 is less than T0, otherwise turn off the pump 11, the heating system 13 and the refrigeration system 14, if yes, turn on the first gear of the pump and the heating system 13, and again determine whether the temperature of the explosion-proof motor 2 is less than T0, until the temperature of the explosion-proof motor 2 is greater than or equal to T0, and turn off the pump 11, the heating system 13 and the refrigeration system 14.

[0059] The present invention is limited only by the claims and their full scope and equivalents. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0060] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", 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 a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0061] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

Claims

1. A motor-mounted explosion-proof hoist, comprising a drum (1), characterized in that: An explosion-proof motor (2) is arranged inside the reel (1), the output end of the explosion-proof motor (2) is connected to a speed reducing mechanism (5), the output end of the speed reducing mechanism (5) is connected to a transmission hub (16), the transmission hub (16) is connected to the inner wall of the reel (1), the end of the explosion-proof motor (2) away from the output end is connected to a support member (3), a first bearing (4) is sleeved on the support member (3), a second bearing (6) is sleeved on the speed reducing mechanism (5), the outer side of the first bearing (4) is connected to the inner wall of the reel (1) via a web plate (21), and the outer side of the second bearing (6) is connected to the inner wall of the reel (1) via a web plate (21); A third bearing (7) is provided on the side of the reel (1) close to the speed reduction mechanism (5), a shaft of a second support shaft seat (9) is sleeved in the third bearing (7), and an end of the support member (3) away from the explosion-proof motor (2) is connected to a first support shaft seat (8); The explosion-proof motor (2) is provided with a fourth bearing (17) and a fifth bearing (18), the outer surfaces of the fourth bearing (17) and the fifth bearing (18) are connected by a support plate (19), and an energy absorption box (20) is provided between the support plate (19) and the inner wall of the reel (1); The explosion-proof motor (2) is provided with a heat exchange pipe (10), the outlet and the inlet of the heat exchange pipe (10) are both in the liquid tank (12), and the heat exchange pipe (10) is provided with a pump (11); the pump (11) has three output gears, namely, a first gear, a second gear, and a third gear, and the power of the first gear of the pump is less than the power of the second gear of the pump, which is less than the power of the third gear of the pump; The explosion-proof motor (2) is also provided with a temperature sensor for measuring the temperature of the explosion-proof motor (2); The liquid box (12) is provided with a heating system (13) and a cooling system (14) for selectively heating or cooling according to the temperature of the explosion-proof motor (2); The liquid tank (12) is also provided with a control box (15), and the control box (15) is used to control the output gear of the pump (11), control the switch of the heating system (13), and control the switch of the refrigeration system (14); The control box (15) controls the output gear of the pump (11), the switch of the heating system (13), and the switch of the refrigeration system (14) with reference to the threshold values ​​T0, T1, T2, and T3 of the temperature of the explosion-proof motor (2), wherein T0 is less than T1, less than T2, and less than T3, and comprises the following steps: Step 1: reading the temperature of the explosion-proof motor (2); Step 2: Determine whether the temperature of the explosion-proof motor (2) is greater than T3, otherwise proceed to step 3, if yes, start the third gear of the pump and the refrigeration system (14), and again determine whether the temperature of the explosion-proof motor (2) is greater than T3, until the temperature of the explosion-proof motor (2) is less than or equal to T3, and then proceed to step 3; Step 3: Determine whether the temperature of the explosion-proof motor (2) is greater than T2, otherwise proceed to step 4, if yes, start the second gear of the pump and the refrigeration system (14), and again determine whether the temperature of the explosion-proof motor (2) is greater than T2, until the temperature of the explosion-proof motor (2) is less than or equal to T2, and then proceed to step 4; Step 4: Determine whether the temperature of the explosion-proof motor (2) is greater than T1, otherwise proceed to step 5, if yes, start the first gear of the pump and the refrigeration system (14), and again determine whether the temperature of the explosion-proof motor (2) is greater than T1, until the temperature of the explosion-proof motor (2) is less than or equal to T1, and then proceed to step 5; Step 5: Determine whether the temperature of the explosion-proof motor (2) is less than T0, if not, shut down the pump (11), the heating system (13) and the refrigeration system (14); if yes, start the first gear of the pump and the heating system (13), and again determine whether the temperature of the explosion-proof motor (2) is less than T0, until the temperature of the explosion-proof motor (2) is greater than or equal to T0, and shut down the pump (11), the heating system (13) and the refrigeration system (14).

2. The motor-mounted explosion-proof hoist according to claim 1, characterized in that: The central axis of the reel (1) coincides with the central axis of the output end of the speed reduction mechanism (5).

3. A motor-mounted explosion-proof hoist according to claim 1 or 2, characterized in that: The explosion-proof motor (2) is a permanent magnet synchronous explosion-proof motor (2).

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